A mold for cleaning excess material from plastic pellets with a rod
By using a hole-shaped plate and an intermediate plate, combined with the design of a press and a thimble, the excess on the plastic particles on the rod is quickly cut off and collected, and the problems of high labor consumption and low efficiency in the prior art are solved, and an efficient and low-cost production process is achieved.
Patent Information
- Application Number
- CN202510044240.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2024-08-01
- Filing Date
- 2025-01-11
- Publication Date
- 2025-04-04
AI Technical Summary
In the prior art, the process of cleaning excess on plastic particles with rods requires a lot of manpower, which is inefficient and costly.
Using a plate-like object and an intermediate plate with holes, the plastic particles with rods are squeezed into the holes through a press, and the silicone excess film is quickly cut away from the blade shape of the holes, and the rod of the plastic particles is pushed out of the perforation of the intermediate plate through a thimble to achieve rapid disengagement and collection.
Significantly save manpower, improve production efficiency, reduce production costs, and realize rapid cutting and collection of multiple plastic particles with rods at one time.
Smart Images
Figure CN119748722A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of polymer material thermoforming, in particular to a mold for cleaning excess materials on plastic particles with rods. Background Art
[0002] Plastic pellets with rods, such as silicone rubber pellets with threaded rods used as electrodes, are composed of conductive screws and conductive silicone rubber wrapped around the conductive screws. The existing production technology is to first put several screws into several blind holes on the lower mold, then put a conductive silicone rubber raw material block mixed with a cross-linking agent on the screws, and then cover the upper mold on the lower mold so that the molding notch on the upper mold is facing the conductive silicone rubber raw material block on the rod. While heating the conductive silicone rubber raw material block, the lower mold and the upper mold are gradually closed, and the hot-melt cast conductive silicone rubber raw material wraps the screw head while filling the molding notch to complete the molding. At the same time, the cross-linking agent and the conductive silicone rubber raw material undergo a cross-linking reaction. After the molding is completed, the lower mold and the upper mold are separated, thereby completing the manufacturing of the conductive silicone rubber pellets with rods. In this technology, after several conductive silicone rubber pellets with rods are molded, there will be a thin layer of excess silicone rubber connecting several conductive silicone rubber pellets with rods together. The prior art is to manually remove the excess silicone rubber on the conductive silicone rubber particles with rods one by one, which not only consumes a lot of manpower, but also has low efficiency and high cost. Summary of the invention
[0003] The object of the present invention is to provide a mold for cleaning excess material on plastic pellets with rods, which can overcome one or more of the above-mentioned shortcomings, save manpower, significantly improve production efficiency, and reduce production costs.
[0004] The mold for cleaning the excess on the plastic pellets with rods of the present invention is realized as follows, including a plate-like object, a plurality of holes arranged on the plate-like object, including an intermediate plate, a plurality of plastic pellets with rods (such as conductive silicone rubber pellets) on the intermediate plate are connected together through a layer of silicone excess film (such as conductive silicone rubber excess), the rods of the plurality of plastic pellets with rods respectively pass through a plurality of through holes on the intermediate plate that are matched with the positions of the plurality of plastic pellets with rods connected together through a layer of silicone excess film, the cross-sectional shape and size of the holes on the plate-like object match the shape and size of the bottom surface of the plastic pellets, the positions of the plurality of holes on the plane of the plate-like object match the positions of the plurality of plastic pellets with rods connected together through a layer of silicone excess film, and the mold includes a base, a plurality of holes arranged on the base, and a plurality of holes arranged on the base. A plurality of ejector pins are provided, the number and positions of the ejector pins match the positions of the rods of a plurality of plastic pellets with rods connected together through a layer of silicone excess film, the diameter of the ejector pins is not larger than the diameter of the perforation of the middle plate, the middle plate and the plate-like object are placed between the two pressing plates of the press, the plurality of plastic pellets with rods connected together through a layer of silicone excess film are placed in the corresponding holes of the plate-like object, the press is used to squeeze the rods toward the plate-like object, the rods are moved relative to the holes, the plastic pellets with rods are squeezed into the holes of the plate-like object, the plastic pellets are peeled off from the silicone excess film, the middle plate is moved to the base, the ejector pins are directed to the rod end faces of the plastic pellets, the middle plate is pressed downward, the ejector pins push the rods of the plastic pellets out of the perforations of the middle plate, and the plastic pellets are completely separated from the silicone excess film.
[0005] A plate-like object with holes is used, and the cross-sectional shape and size of the holes match the shape and size of the bottom surface of the plastic pellets. The opening of the hole is equivalent to a knife blade. When the plastic pellets with rods and the plate-like object move relatively quickly, the silicone excess film around the plastic pellets can be effectively cut off, and the quality of the cutting can be guaranteed. Since multiple plastic pellets with rods are quickly cut off at one time, the production efficiency and production cost are low, and manpower is saved. After the silicone excess film is cut off, the elasticity of the silicone excess film will shrink the hole to clamp the plastic pellets. At the same time, the end of the rod is still retained in the perforation of the middle plate, so that the plastic pellets are still retained on the middle plate. The rod is pushed out of the perforation of the middle plate by the ejector pin on the base, so that all the plastic pellets retained on the middle plate can be pushed off the middle plate at one time, thereby completing the purpose of quickly collecting the plastic pellets.
[0006] Preferably, the hole is a through hole that penetrates the plate-like object. With the through hole, some of the plastic particles in a free state can pass through the through hole, thereby facilitating the collection of the plastic particles with the rod.
[0007] Preferably, guide pillars are provided around the base, and guide holes are provided on the middle plate matching the guide pillars, so that the guide pillars of the base pass through the guide holes of the middle plate, pressing the middle plate downward, and the ejector pins on the base are inserted into the through holes of the middle plate, and the plastic particles are pushed away from the middle plate by the rod for ejecting the plastic particles.
[0008] Compared with the prior art, the present invention has the advantages of saving manpower, significantly improving production efficiency and reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] Figure 1 A schematic structural diagram of a plate-shaped object of a mold for cleaning excess material on plastic pellets with rods according to the present invention; Figure 2 A schematic diagram of the invention of a plate-shaped mold for cleaning excess material from plastic pellets with rods and a plurality of plastic pellets with rods connected together by a layer of silicone excess material film; Figure 3 A schematic diagram of cutting plastic pellets from a silicone excess film by a press; Figure 4 Schematic diagram of the base structure with ejector pins Figure 5 It is a schematic diagram of the structure of the base with ejector pins cooperating with the middle plate; Figure 6 It is a schematic diagram of plastic pellets being separated from the middle plate; Figure 7 for Figure 2 A partial enlarged view of point A.
[0010] Explanation of the reference numerals: 1-plate; 2-hole; 3-middle plate; 4-rod; 5-plastic pellets; 6-silicone excess film; 7-perforation; 8-base; 9-thimble; 10-press; 11-pressing plate; 12-guide column; 13-guide hole; 14-upper port; 15-conical excess; 16-excess. DETAILED DESCRIPTION
[0011] The present invention is now described in further detail with reference to the accompanying drawings and embodiments: like Figure 1 As shown in FIG. 7 , the mold for cleaning the excess on the plastic pellets with rods of the present invention is realized as follows, comprising a plate-like object 1, a plurality of holes 2 arranged on the plate-like object 1, and an intermediate plate 3. A plurality of plastic pellets 5 with rods 4 (such as conductive silicone rubber pellets) on the intermediate plate 3 are connected together through a layer of silicone excess film 6 (such as conductive silicone rubber excess), and the rods 4 of the plurality of plastic pellets 5 with rods 4 respectively pass through a plurality of through holes 7 on the intermediate plate 3 that match the positions of the plurality of plastic pellets 5 with rods 4 connected together through a layer of silicone excess film 6, the cross-sectional shape and size of the holes 2 on the plate-like object 1 match the shape and size of the bottom surface of the plastic pellets 5, and the positions of the plurality of holes 2 on the plane of the plate-like object 1 match the positions of the plurality of plastic pellets 5 with rods 4 connected together through a layer of silicone excess film 6, The invention comprises a base 8 and several ejector pins 9 arranged on the base 8. The number and position of the ejector pins 9 match the position of the rods 4 of several plastic pellets 5 with rods 4 connected together through a layer of silicone excess film 6. The diameter of the ejector pins 9 is not greater than the diameter of the through hole 7 of the middle plate 3. Figure 3 As shown, the middle plate 3 and the plate-like object 1 are placed between the two pressing plates 11 of the press 10, and several plastic pellets 5 with rods 4 connected together by a layer of silicone excess film 6 are placed in the corresponding holes 2 of the plate-like object 1. The press 10 presses the rods toward the plate-like object 1 to move the rods 4 relative to the holes 2, and squeezes the plastic pellets 5 with rods 4 into the holes 2 of the plate-like object 1, so that the plastic pellets 5 are peeled off from the silicone excess film 6. The middle plate 3 is moved to the base 8, and the ejector pins 9 are facing the end faces of the rods 4 of the plastic pellets 5. The middle plate 3 is pressed downward, and the ejector pins 9 push the rods 4 of the plastic pellets 5 out of the through holes 7 of the middle plate 3, so that the plastic pellets 5 are completely separated from the silicone excess film 6.
[0012] Preferably, if Figure 1 As shown, the hole 2 is a through hole penetrating the plate-like object 1 .
[0013] Preferably, if Figure 4 , 5 As shown, guide posts 12 are arranged around the base 8 , and guide holes 13 are arranged on the middle plate 3 matching with the guide posts 12 , so that the guide posts 12 of the base 8 pass through the guide holes 13 of the middle plate 3 .
[0014] Preferably, if Figure 7 As shown, the upper end 14 of the through hole 7 of the middle plate 3 is in the shape of a trumpet. After the plastic pellets 5 are formed, there is a conical excess 15 at the root of the rod 4 located at the plastic pellets 5, which is connected with the excess 16 that penetrates into the rod 4. When cleaning the excess 16, the plastic pellets 5 with the rod 4 are separated from the middle plate 3, and the conical excess 15 is cleaned out, and the excess 16 on the rod 4 (inside the thread) can be cleaned out at the same time, thereby accelerating the cleaning of the excess and improving the production efficiency.
[0015] like Figure 2 , 3 As shown, a plate-like object 1 with a hole 2 is used, and the cross-sectional shape and size of the hole 2 match the shape and size of the bottom surface of the plastic pellet 5. The opening of the hole 2 is equivalent to a knife blade. When the plastic pellet 5 with the rod 4 and the plate-like object 1 move relatively quickly, the silicone excess film 6 around the plastic pellet 5 can be effectively cut off, and the quality of the cutting can be guaranteed. Since a plurality of plastic pellets 5 with the rod 4 are quickly cut off at one time, the production efficiency and production cost are low, and manpower is saved. After the silicone excess film 6 is cut off, the elasticity of the silicone excess film 6 will shrink the hole and clamp the plastic pellet 5. At the same time, the end of the rod 4 is still retained in the perforation 7 of the middle plate 3, so that the plastic pellet 5 is still retained on the middle plate 3. Figure 5 , 6 As shown, by pushing the rod 4 out of the through hole 7 of the middle plate 3 through the ejector pin 9 on the base 8, all the plastic pellets 5 retained on the middle plate 3 can be pushed away from the middle plate 3 at one time, thereby achieving the purpose of quickly collecting the plastic pellets.
Claims
1. A mold for cleaning excess material from plastic pellets with a rod, characterized in that: The invention comprises a plate-like object, a plurality of holes arranged on the plate-like object, and a middle plate. The plurality of plastic pellets with rods on the middle plate are connected together through a layer of silicone excess film. The rods of the plurality of plastic pellets with rods respectively pass through a plurality of through holes on the middle plate that are matched with the positions of the plurality of plastic pellets with rods connected together through a layer of silicone excess film. The cross-sectional shape and size of the holes on the plate-like object match the shape and size of the bottom surface of the plastic pellets. The positions of the plurality of holes on the plane of the plate-like object match the positions of the plurality of plastic pellets with rods connected together through a layer of silicone excess film. The invention comprises a base and several ejector pins arranged on the base, wherein the number and positions of the ejector pins match the positions of the rods of several plastic pellets with rods connected together through a layer of silicone excess film, the diameter of the ejector pins is not greater than the diameter of the perforation of the middle plate, the middle plate and the plate-like object are both placed between two pressing plates of a press, the several plastic pellets with rods connected together through a layer of silicone excess film are placed in the corresponding holes of the plate-like object, the rods are pressed toward the plate-like object by the press, the rods are moved relative to the holes, the plastic pellets with rods are squeezed into the holes of the plate-like object, the plastic pellets are peeled off from the silicone excess film, the middle plate is moved to the base, the ejector pins are directed to the rod end faces of the plastic pellets, the middle plate is pressed downward, the ejector pins push the rods of the plastic pellets out of the perforations of the middle plate, and the plastic pellets are completely separated from the silicone excess film.
2. The mold for cleaning excess material from plastic pellets with rods according to claim 1, characterized in that: The holes are through-holes that penetrate the plate.
3. The mold for cleaning excess material from plastic pellets with rods according to claim 1 or 2, characterized in that: Guide pillars are arranged around the base, and guide holes are arranged on the middle plate matching with the guide pillars, so that the guide pillars of the base are passed into the guide holes of the middle plate, pressing the middle plate downward, and the ejector pins on the base are inserted into the through holes of the middle plate, and the plastic pellets are pushed away from the middle plate by the rod for ejecting the plastic pellets.
4. The mold for cleaning excess material from plastic pellets with rods according to claim 1 or 2, characterized in that: The perforated upper end of the middle plate is trumpet-shaped. After the plastic pellets are formed, there is a conical excess at the root of the rod located at the plastic pellets, which is connected to the excess that has penetrated into the rod. When cleaning the excess, the plastic pellets with the rod are separated from the middle plate, and the conical excess is cleaned out, and the excess on the rod can be cleaned out at the same time.
5. The mold for cleaning excess material from plastic pellets with rods according to claim 3, characterized in that: The perforated upper end of the middle plate is trumpet-shaped. After the plastic pellets are formed, there is a conical excess at the root of the rod located at the plastic pellets, which is connected to the excess that has penetrated into the rod. When cleaning the excess, the plastic pellets with the rod are separated from the middle plate, and the conical excess is cleaned out, and the excess on the rod can be cleaned out at the same time.