21 results about "Injection moulding" patented technology

The present invention is related to the production method of the two-layer composite deck tile (1) which comprises the process steps of melting, first of all, the wood-plastic filling material which is used as the top layer (10) and filling the same into the prepared injection mold cavity; then melting the thermoplastic bottom layer (11) which allows the composite deck tile (1) to be high-positioned on the ground where it will be applied and filling the same into the injection mold cavity; allowing the two layers (10, 11) to cool down which are filled into the mold cavity; and removing thereof from the mold after cooling down, so as to be used in the outdoor areas or for floor coverings.

The invention discloses an injection moulding process of polyethylene (PE) material pieces for an infusion apparatus. The injection process comprises the following steps of: S1, melting, S2, clamping a mould, S3, injecting, S4, pressure-maintaining, S5, cooling, S6, opening the mould, and S7, demoulding. The beneficial effects of the invention are as follows: as a hot runner injection moulding process is applied, and a heating device for heating a runner is contained in the hot runner mould, so that the runner is a molten state during the entire injection moulding period, further, the raw materials are saved, and the cost is reduced; the process provided by the invention is simple in process procedures, easy to achieve and short in the cycle time; and the product has better quality and the degree of automation is increased.

The invention discloses a high-molecular self-lubricating material and a preparation method of the high-molecular self-lubricating material. The high-molecular self-lubricating material is prepared from the following ingredients in parts by weight: 100 parts of polybutylene terephthalate resin, 5 to 30 parts of aramid fiber, 3 to 20 parts of wear-resistant agents, 5 to 12 parts of toughening agents, 0.1 to 2.0 parts of antioxidants and 0.1 to 2.0 parts of stabilizing agents. The high-molecular self-lubricating material has the advantages that the mechanical property is excellent; the wear-resistant performance is excellent; the dimension stability is high. The invention also discloses a plate spring flanged bushing, which is made of the high-molecular self-lubricating material through injection molding. The plate spring flanged bushing has the advantages that the structure is simple; the weight is light; the maintenance is avoided; the abrasion resistance is realized.

The invention discloses a suppository for treating haemorrhoids, and belongs to external traditional Chinese medicines for treating haemorrhoids. The suppository is prepared from golden cypress, scutellaria baicalensis, gallnuts and radix sophorae flavescentis by the following steps: 1) adding the golden cypress into ethanol 8 times by weight, carrying out reflux extraction three times, and concentrating the filtrate to obtain golden cypress concentrated liquor; 2) decocting the scutellaria baicalensis for 10 minutes by boiled water 14 times by weight of residual three medicinal materials, adding the gallnuts and the radix sophorae flavescentis and decocting for 2 hours, and filtering; 3) then, adding water 12 times by weight to decoct twice, combining the filtrates obtained by three times, and concentrating to obtain a fluid extract with relative density of 1.10-1.15; 4) adding ethanol into the fluid extract, standing for 18 hours, filtering and concentrating to obtain concentrated extracting liquor; 5) combining the concentrated extracting liquor and the golden cypress concentrated liquor, vacuum-drying and crushing to obtain medical powder; and 6) after uniformly mixing the medical powder with a matrix in a weight ratio of 4:6, carrying out injection moulding and cooling to obtain the suppository. The suppository disclosed by the invention has a good curative effect on hemorrhage, swelling, pains, constipation and the like caused by internal hemorrhoids, external hemorrhoids and mixed hemorrhoids, and is an external medicine for treating haemorrhoids.

The invention discloses a method for setting the control parameters of an injection molding machine. The method comprises the following steps of: providing a plurality of authority types, wherein at least authority type sets the authority range of another authority type, configuring a plurality of operation pages administrated by different authority types, determining the authority type of a user; and entering the operation page administrated by the authority type according to the authority type to set the control parameters. By using the method, the users of different identities can set the control parameters within the authorized ranges, the needs of different users are satisfied, and the part of authority types can define the authority ranges of other authority types to administrate the setting of the control parameters in the injection molding. The invention further provides the injection molding machine using the method.

The invention discloses a disposable medical syringe needle which comprises a needle base, a hollow needle tube and a jacket, wherein the rear end of the hollow needle tube is connected with the needle base; the front end of the jacket is closed and is detachably sleeved on the needle tube; the needle base and the needle tube have an integrated structure and are once formed in an injection molding mode by using a compound material; and the compound material is composed of following resins and fillers by weight percent: 40%-79% of substrate resins, 0-10% of toughening resins and 20%-60% of fillers. According to the disposable medical syringe needle provided by the invention, the needle tube and the needle base are integrally molded by using the compound material; the compound material has higher strength, toughness and hardness; a stainless steel needle tube can be replaced by the needle tube made of the compound material; after injection is finished by medical personnel, a needle point can be burnt, so as to close a needle hole and passivate or eliminate the needle point; the possibility of the propagation of remained liquid medicine or diseases through the syringe needle is fundamentally eliminated; the risk of accident stab is reduced; and the risk of breaking the needle tube in human body is reduced by using the integrated needle tube and needle base.

The invention provides a motor-driven injection molding apparatus in which an entire of the apparatus is simplified and made compact. In a motor-driven injection molding apparatus (1), a movable metal mold (12) clamped to a stationary metal mold (11) is mounted to a movable mold plate (13), and two ball screws (17, 18) for moving the movable mold plate (13) are passed through two points on opposing corners of the movable mold plate (13). End portions of the ball screws (17, 18) are set in a cantilever state, and are rotated via pulleys (55, 55) and a timing belt (56), thereby moving the movable mold plate (13). Further, the movable mold plate (13) is guided by a slide guide having a structure that a bearing unit (14) fixed to both sides of a lower portion thereof is fitted to linear rails (15, 16). On the other hand, in an injection side, a injection side movable plate (33) to which an injection plunger (42) is fixed by two tie bars (35, 36) and two ball screws (37, 38) on respective opposing corners, and the same slide guides as mentioned above moves. The movable mold plate (13) is moved by the opening and closing side ball screws (17, 18) so as to be mold clamped, and the injection side movable plate (33) is thereafter moved so as to inject.

The invention discloses a butting splicing type shoe sole cleaning machine fixed by the aid of stays. The butting splicing type shoe sole cleaning machine comprises a cleaning unit and a drying unit.The cleaning unit and the drying unit are connected with each other by means of splicing; the cleaning unit comprises a plurality of cleaning sections, each cleaning section comprises a cleaning framework section and a cleaning component, and the cleaning components are arranged on the cleaning framework sections; the drying unit comprises a drying framework and a water absorption pad, and the drying framework comprises a plurality of drying framework sections; the outer contour shapes of spliced combination surfaces of the cleaning framework sections and the drying framework sections are identical to one another, and outer contour surfaces of the corresponding sides of the corresponding sections are formed by the spliced combination surfaces; all the framework sections are fixedly integrally connected with one another by the stays which are longitudinally penetratingly arranged along the butting splicing type shoe sole cleaning machine. The butting splicing type shoe sole cleaning machine has the advantages that the spliced combination surfaces have large areas and are in regular shapes, and injection molds for injection molding are simple in structure, low in manufacturing expense and high in cost performance; products are simple in spliced fixing structure, fastening operation can be facilitated, and the butting splicing type shoe sole cleaning machine is suitable for batchproduction.

The invention relates to a combined type plane building template structure. The combined type plane building template structure comprises a plane template, a plurality of patching templates are connected to one or more sides of the plane template, the patching templates are jointed and combined to form a patching template component which is same in height and length with the plane template. The structure is simple, the use is convenient, the plane template and the patching templates are made from high-strength polypropylene composite materials by integral injection moulding, the weight is light, the strength is high, the durability is high, the turnover frequency is greatly increased, the construction efficiency is improved, and the construction and the transportation are convenient. By arranging handle connecting holes and split bolt holes on the plane template and the patching templates, the structure can be suitable for a plurality of connecting and fixing modes, and the structure meets relative requirements of national building template construction specifications.

Disclosed is a high-flow vacuum generator, which relates to automatic industrial equipment for injection moulding. One end of a diffusion side stand is connected with a vacuum side stand while the other end is connected with a muffler. A diffusion chamber is arranged in the diffusion side stand, and an adsorption chamber is disposed in the vacuum side stand, wherein one end of the diffusion chamber communicates with the adsorption chamber and the other end of the diffusion chamber is connected to the muffler. The diffusion side stand is equipped with a first air tube joint and the vacuum side stand is equipped with a second air tube joint, wherein the air tube joint one communicates with the diffusion chamber and the second air tube joint communicates with the absorption chamber. A clearance formed between the diffusion side stand and the vacuum side stand is used as a nozzle for generating a high-speed jet. According to the invention, the high-flow vacuum generator has a small vacuum capacity, quick response, light weight, low noise, small vacuum, and a high flow. The high-flow vacuum generator is designed of a tubular shape, is flexibly connected to a clamp plate, is higher in taking-out accuracy and high in taking-out speed, has a vacuum breaking function, and is able to convert vacuuming into blowing. When a product is taken out by a clamp and the product needs to be released, the product can be blew out quickly.

The invention discloses a preparation method for a composite polymer film with high thermal conductivity. The preparation method comprises the following steps: firstly, mixing particles with high thermal conductivity or fibers with polymer particles, adopting an injection molding or compression molding process to obtain a first polymer film containing particles with high thermal conductivity or fibers, putting the first polymer film on a porous molding board, and putting the porous molding board into a vacuum heating tank to heat; after the first polymer film is molten, filling the porous molding board with the molten first polymer film to form a second polymer film; after certain time, taking out the porous molding board with the second polymer film from a vacuum heating tank, cooling the porous molding board with the second polymer film to the room temperature, and removing the porous molding board to obtain the second polymer film; and finally, sequentially rinsing the second polymer film by use of deionized water and absolute ethyl alcohol, and putting the second polymer film in a vacuum environment to dry to obtain the composite polymer film with high thermal conductivity. According to the preparation method, the heat-conducting property of the polymer film is improved by adding the articles with high thermal conductivity or fibers, and the heat-conducting performance of the polymer film is also improved by a porous molding board wetting technology; and the process is simple.

The invention provides an accommodating device, comprising a partition part, an accommodation part, and a guide part arranged between the partition part and the accommodation part. The partition part comprises a plurality of partition cavities; the accommodation part comprises a plurality of accommodation cavities which are corresponding to the partition cavities; the guide part comprises a guiding through hole which is selectively communicated with an accommodation cavity and a partition cavity by rotation of the guide part. The accommodation device of the technical proposal is convenient for accommodating injection molding products corresponding to different mold cavities.

The invention relates to the technical field of injection moulding, in particular to a screw tooth core-returning mechanism and a die. The screw tooth core-returning mechanism comprises a rack, a gear, a center shaft, a guide shaft, a first insert and a first insert pin, wherein the center shaft is of hollow structure; the gear is coaxially arranged on the center shaft and is meshed with the rack;a thread is formed in one end of a gear shaft; the center shaft is coaxially connected with the guide sleeve; the first insert is arranged in the center shaft; an exhausting passage is arranged on the first insert; the first insert pin is arranged in the first insert; and an exhausting groove is formed in the axial direction of the first insert pin and communicates with the exhausting passage. The die comprises a die box and a plurality of screw tooth core-returning mechanisms; the screw tooth core-returning mechanisms are mounted on the die box. The rack is directly meshed with the gear to reduce driving abrasion of the gear; the center shaft is coaxially connected with the guide sleeve, so that guiding exit of the center shaft is facilitated, and abrasion of the center shaft is reduced;and the exhausting groove communicates with the exhausting passage to exhaust air in the die to facilitate forming of colloid in a cavity.

The invention relates to the technical field of automobile bumper production, in particular to an efficient injection molding device for automobile bumper production, which comprises a workbench, an injection molding machine, a heating temperature control assembly, a first driving part and a second driving part, and the second driving part works to drive materials in the injection molding machine to move into the heating temperature control assembly. The injection molding machine is heated through the heating temperature control assembly to melt materials into a liquid state, adjustment is conducted according to the temperature in the injection molding machine, the situation that the injection molding quality is affected by too high or too low temperature is avoided, the liquid materials in the injection molding machine are pushed into the molding machine through work of the first driving part, and therefore an automobile bumper product is rapidly molded; the problems that due to the fact that the injection molding temperature cannot be controlled, the precision and the surface smoothness of products are poor, the number of defective products is large, and the working efficiency is greatly reduced are solved.

The invention relates to the field of injection molds, and discloses a novel injection mold. The novel injection mold comprises a mold frame, a driving device, an adjusting device, a buffer assembly and a second ejection assembly; an upper mold and a lower mold which correspond to each other up and down are arranged on the mold frame, an injection mold cavity is formed after the upper mold and the lower mold are assembled, a cover plate matched with the upper mold to form a pouring pipeline is arranged on the upper mold, and branch pipelines communicating with the injection mold cavity are arranged at the two ends of the pouring pipeline. the driving device is arranged in the upper mold and comprises a first air cylinder, a moving rod, a cutting plate and a first ejection assembly; the adjusting device is arranged in the upper mold and comprises an adjusting plate, a supporting spring and a limiting assembly; and the buffer assembly is arranged between the upper mold and the lower mold, and the second ejection assembly is arranged on the lower mold and used for ejecting a forming mold. Through the arrangement of the driving device and the adjusting device, the mold can meet injection molding of products with different sizes, the time for replacing mold modules is shortened, waste is more convenient and faster to clean, operation is easy, and the production efficiency of workpieces is improved.

The invention relates to the field of chemical materials, in particular to wheatstrawplant fibersynthetic resin and a preparation process thereof. The wheatstrawplant fibersynthetic resin is prepared from the following raw materials: wheat-straw powder, Chinese insect wax, agar, terephthalic acid, potato starch, propanediol, balsam powder,poly-hydroxy butyrateand polylactic acid fiber. The preparation process comprises the following steps of (1) preparing fine particlewheat straw powder; (2) preparing a primary mixed material; (3) preparing wheat straw fiber powder; (4) preparing a mixed adding material; (5) uniformly stirring the mixed adding material and the polylactic acid fiber; then, performing blending extrusion and injection moulding; obtaining the wheat straw plant fiber synthetic resin. In order to avoid the waste of resources such as crop waste materials, the crop waste materials are fully utilized; the environment pollution is reduced; the production cost is low; the application is very wide; the rural resource advantage can be realized; an effective method and path areprovided for reasonable utilization of waste crops.

The invention relates to the technical field of plastic molding or connection, and discloses a device for preventing air existing in a charging barrel and a runner from influencing molding after injection molding start and stop. The device comprises the charging barrel, a first guide rail is fixedly connected to the interior of the charging barrel, and a fixing block is fixedly connected to the surface of the first guide rail. According to the device for preventing air existing in the charging barrel and the runner from influencing molding after injection molding start and stop, a rotating rod rotates to drive a sliding block to slide in a sliding groove formed in the surface of an annular push plate, and then the annular push plate pushes and presses redundant rubber and air in the charging barrel up and down and discharges the redundant rubber and air; the annular push plate moves up and down and drives a sliding plate to move up and down, gear teeth arranged on the surface of the sliding plate are engaged with a gear to enable the gear to rotate, and therefore a swing rod rotates and drives a connecting rod to push a sliding plug with an ejection block to be repeatedly ejected in a runner opening, redundant rubber materials and air in the runner opening are discharged, and the effects of quickly and effectively removing the residual air between the charging barrel and the runner and improving the injection molding efficiency and quality are achieved.

The invention discloses a method for manufacturing a calibration color card of a newborn percutaneous jaundice instrument. The method comprises the following steps: A, preparing solutions: preparing four bilirubin solutions with concentrations of 1 mg/dl, 5 mg/dl, 11 mg/dl and 17 mg/dl by using chloroform and bilirubin dry powder; measuring the spectral characteristics of the bilirubin solution by using a spectrophotometer; b, manufacturing a mold: manufacturing a set of disc-shaped injection mold with the diameter of 50mm and the thickness of 2mm; c, manufacturing a color card: mixing toner into plastic particles for injection molding to obtain an injection-molded color card; analyzing the color card by using a spectrum analyzer, comparing the spectral characteristics with the spectral characteristics of the bilirubin solution, adjusting the toner ratio and weight until the main spectral characteristics of the color card are consistent with the spectral characteristics of the bilirubin solution, and calculating and recording the toner ratio and weight and the concentration of the bilirubin solution corresponding to the toner ratio and weight; adjusting the weight ratio of the toner to the plastic particles to obtain color cards with different color concentrations; according to the invention, the thickness difference of color cards with different concentrations is ensured to be within the range of 0.01 mm, and batch production of the jaundice tester is realized.