Injection mold for plastic part production
By designing injection molds including mold release components, anti-adhesion components and installation components, the problem of difficulty in achieving stable and automated mold release in the prior art is solved, and stable and automatic mold release of plastic parts is achieved, reducing production costs and improving production efficiency.
Patent Information
- Application Number
- CN202411879555.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-19
- Publication Date
- 2025-04-25
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Existing injection molds are difficult to achieve stable and automated mold release operations, resulting in low production efficiency and easy damage or deformation of plastic parts, increasing production costs.
An injection mold is designed including a mold release assembly, an anti-adhesive assembly and an installation assembly. The mold release assembly realizes automatic mold release of the plastic parts through the cooperation of the moving plate, top column, long rod and spring; the anti-adhesive assembly ensures that the plastic parts can be automatically pushed down after the moving mold is separated from the fixed mold; the installation assembly simplifies the mold installation and disassembly process through the design of threaded rod and clamp.
The stable and automatic molding of plastic parts after injection molding is achieved, which avoids damage or deformation caused by manual molding, reduces production costs, and improves production efficiency and practicality.
Smart Images
Figure CN119871802A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of plastic part production, in particular to an injection mold for plastic part production. Background Art
[0002] Injection molded parts refer to various injection molded products produced by injection molding machines, collectively referred to as injection molded parts, including various packages, parts, etc., which are mainly made of materials such as polyethylene or polypropylene and added with a variety of organic solvents. Injection molding is a method of producing industrial products. Products usually use rubber injection molding and plastic injection molding. Injection molding can also be divided into injection molding molding and die casting. Injection molding machine (referred to as injection machine or injection molding machine) is the main molding equipment that uses plastic molding molds to make plastic products of various shapes of thermoplastics or thermosetting materials. Injection molding is achieved through injection molding machines and molds.
[0003] Most of the injection molds in the prior art are difficult to perform stable and automatic demolding operations on molded plastic parts. This problem not only limits the improvement of production efficiency, but may also cause damage or deformation of plastic parts during manual demolding, thereby increasing production costs. Specifically, existing injection molds often lack an efficient and reliable automatic demolding mechanism, making the demolding process rely on manual operation or more complex mechanical auxiliary devices. These methods are not only inefficient, but also difficult to adapt to large-scale, high-speed production needs, reducing practicality. Summary of the invention
[0004] In view of the deficiencies in the prior art, the present invention provides an injection mold for producing plastic parts.
[0005] An embodiment of the present invention provides an injection mold for producing plastic parts, comprising: a support platform; an injection molding assembly, wherein the injection molding assembly comprises a fixed plate, a hydraulic rod, a movable plate, a fixed mold and a movable mold, wherein the fixed plate is fixedly arranged on the support platform, an L-shaped plate is fixedly arranged on one side of the fixed plate, the hydraulic rod is fixedly installed on the inner side of the L-shaped plate, the movable plate is fixedly arranged at the output end of the hydraulic rod, the fixed mold and the movable mold are respectively arranged on the inner sides of the fixed plate and the movable plate, an injection molding tube is penetrated through the bottom of the fixed mold, and the injection molding tube penetrates the fixed plate and is fixedly arranged; A demoulding assembly is arranged on the fixed plate, and the demoulding assembly includes a movable plate, a plurality of top columns, two long rods and two first springs. The plurality of top columns are fixedly arranged on the movable plate, the two long rods are fixedly arranged on the movable plate, the two long rods are slidably arranged through the fixed plate and the movable plate, the two first springs are fixedly arranged on the movable plate, the other ends of the two first springs are fixedly arranged on the fixed plate, and the outer ends of the two long rods are fixedly arranged with top blocks.
[0006] Furthermore, both the fixed plate and the movable plate are provided with mounting components, and the mounting components include two threaded rods, a connecting rod, a round rod and two clamping plates. Both the fixed plate and the movable plate are provided with sliding grooves, and the two threaded rods are fixedly connected by the connecting rod, one of the threaded rods is rotatably set on the inner wall of the sliding groove, and the round rod is fixedly set on the outer end of the other threaded rod, and the two threaded rods are respectively passed through the two clamping plates for threaded connection, and both ends of the fixed mold and the movable mold are provided with clamping holes.
[0007] Furthermore, it also includes a cooling component, which includes a refrigerator, a delivery pipe and a rectangular cover, the refrigerator is fixedly installed on the outside of the movable plate, the delivery pipe is fixedly connected to the air outlet of the refrigerator, the rectangular cover is fixedly set on the inner side of the movable plate, the other end of the delivery pipe passes through one side of the rectangular cover and is fixedly set, and the bottom of the rectangular cover is penetrated by a heat dissipation hole.
[0008] Furthermore, it also includes an anti-sticking component, which includes a ejection frame and a plurality of second springs. The ejection frame is slidably sleeved on the outside of the movable mold, and the ejection frame is set against the outer edge of the fixed mold. The plurality of second springs are fixedly set on the inner side of the ejection frame, and the other ends of the plurality of second springs are fixedly set on the movable plate.
[0009] Furthermore, the plurality of top posts are all slidably arranged to penetrate the fixed plate and the fixed mold, and the outer ends of the plurality of top posts are all arranged flush with the inner bottom of the fixed mold.
[0010] Furthermore, the two long rods are fixedly provided with limit blocks, the limit blocks are arranged to abut against the fixed plate, and the two long rods are respectively penetrated by two first spring movable arrangements.
[0011] Furthermore, the two round rods are respectively passed through one side of the fixed plate and the movable plate and are rotatably arranged, and a crank is fixedly arranged at the outer ends of the two round rods. The splint is arranged in an L shape, and the inner side of the outer end of the splint is arranged in an inclined surface, and the splint is arranged in cooperation with the corresponding card hole.
[0012] Furthermore, a bracket is fixedly provided at the bottom of the support platform, a collecting port is penetrated through the support platform, a collecting box is placed on the bracket, and the collecting box is matched with the collecting port.
[0013] Compared with the prior art, the present invention has the following beneficial effects: A demoulding assembly is provided, and when the movable plate can drive the movable plate to move in the same direction through two long rods, multiple ejector posts can be driven to move in the same direction, so that the plastic parts stuck in the fixed mold are ejected and fall into the collection box through the collection port.
[0014] An anti-sticking component is provided. When the movable mold is separated from the fixed mold, the ejector frame can be reset under the action of multiple second springs, pushing down the plastic parts stuck on the movable mold and dropping them into the collection box through the collection port.
[0015] An installation component is provided, and the two threaded rods are driven to rotate by the crank, which can drive the two clamping plates to move to the outer ends and separate from the corresponding clamping holes. At this time, the fixed mold or the movable mold can be removed for replacement; the crank is rotated in the opposite direction to drive the two clamping plates to move to the middle and clamp into the clamping holes on the same side, so that the fixed mold or the movable mold can be fixed.
[0016] In summary, the present invention is provided with a demolding component and an anti-sticking component, which can automatically perform a stable demolding operation on the plastic parts after injection molding, avoiding damage or deformation of the plastic parts during the manual demolding process, reducing production costs, and increasing practicality. An installation component is also provided, which can quickly and conveniently install and disassemble the fixed mold and the movable mold, facilitate the replacement of the fixed mold and the movable mold, and improve work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a three-dimensional diagram of an injection mold for producing a plastic part described in an embodiment of the present invention.
[0018] Figure 2 It is a stereoscopic diagram from different perspectives of an injection mold for producing a plastic part described in an embodiment of the present invention.
[0019] Figure 3 It is a stereoscopic view of a demoulding component in an injection mold for producing a plastic part described in an embodiment of the present invention.
[0020] Figure 4 It is a cross-sectional view of a fixed plate in an injection mold for producing a plastic part described in an embodiment of the present invention.
[0021] Figure 5 It is a cross-sectional view of a rectangular cover in an injection mold for producing a plastic part described in an embodiment of the present invention.
[0022] In the above drawings: 1 support table, 11 bracket, 12 collection port, 13 collection box, 2 injection molding assembly, 21 fixed plate, 22 L-shaped plate, 23 hydraulic rod, 24 movable plate, 25 fixed mold, 26 movable mold, 27 injection molding tube, 3 demolding assembly, 31 movable plate, 32 ejector column, 33 long rod, 34 first spring, 35 limit block, 36 ejector block, 4 installation assembly, 41 slide groove, 42 threaded rod, 43 connecting rod, 44 round rod, 45 splint, 46 crank, 47 card hole, 5 cooling assembly, 51 refrigerator, 52 conveying pipe, 53 rectangular cover, 54 heat dissipation hole, 6 anti-sticking assembly, 61 ejector frame, 62 second spring. DETAILED DESCRIPTION
[0023] The technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.
[0024] like Figure 1-Figure 5 As shown, an embodiment of the present invention provides an injection mold for producing plastic parts, comprising: A support platform 1, a bracket 11 is fixedly arranged at the bottom of the support platform 1, a collecting port 12 is penetrated through the support platform 1, a collecting box 13 is placed on the bracket 11, and the collecting box 13 is arranged in coordination with the collecting port 12, so that the plastic parts after injection molding can fall into the collecting box 13 through the collecting port 12, thereby collecting the plastic parts; Injection molding assembly 2, injection molding assembly 2 includes a fixed plate 21, a hydraulic rod 23, a movable plate 24, a fixed mold 25 and a movable mold 26, the fixed plate 21 is fixedly arranged on the support platform 1, an L-shaped plate 22 is fixedly arranged on one side of the fixed plate 21, the hydraulic rod 23 is fixedly installed on the inner side of the L-shaped plate 22, the movable plate 24 is fixedly arranged at the output end of the hydraulic rod 23, the movable plate 24 and the support platform 1 are slidingly arranged to improve stability, the fixed mold 25 and the movable mold 26 are respectively arranged on the inner sides of the fixed plate 21 and the movable plate 24, the fixed mold 25 and the movable mold 26 are matched and arranged so that the movable mold 26 can be embedded in the fixed mold 25, and an injection molding tube 27 is penetrated at the bottom of the fixed mold 25, and the injection molding tube 27 penetrates the fixed plate 21 and is fixedly arranged, and raw materials can be injected into the fixed mold 25 and the movable mold 26 through the injection molding tube 27; The fixed plate 21 and the movable plate 24 are both provided with a mounting assembly 4, and the mounting assembly 4 includes two threaded rods 42, a connecting rod 43, a round rod 44 and two clamping plates 45. The fixed plate 21 and the movable plate 24 are both provided with a slide groove 41, and the two threaded rods 42 are fixedly connected by the connecting rod 43. The threads of the two threaded rods 42 are arranged in opposite directions. The lengths of the slide groove 41 and the connecting rod 43 are adapted to the lengths of the fixed plate 21 and the movable plate 24. One of the threaded rods 42 is rotatably arranged on the inner wall of the slide groove 41, and the round rod 44 is fixedly arranged on the outer end of the other threaded rod 42. The two round rods 44 respectively penetrate one side of the fixed plate 21 and the movable plate 24 and are rotatably arranged. The outer ends of the two round rods 44 are fixedly provided with a crank 46, and the crank 46 can facilitate the staff to rotate the corresponding threaded rod 42. The two threaded rods 42 respectively penetrate the two clamping plates 45 for threaded connection. The two clamping plates 45 are both slidably arranged against the inner wall of the slide groove 41. The clamping plates 45 are as shown in FIG. Figure 4 As shown in FIG. 1 , the inner side of the outer end of the clamping plate 45 is L-shaped. Figure 4 As shown, the fixed mold 25 and the movable mold 26 are provided with a clamping hole 47 at both ends, and the clamping plate 45 is provided in cooperation with the corresponding clamping hole 47, so that the outer end of the clamping plate 45 can be clamped into the corresponding clamping hole 47, and the corresponding fixed mold 25 or movable mold 26 can be tightened through the inclined surface; The fixed plate 21 is provided with a demoulding assembly 3, which includes a movable plate 31, a plurality of top pillars 32, two long rods 33 and two first springs 34. The plurality of top pillars 32 are fixedly arranged on the movable plate 31, and the plurality of top pillars 32 are all slidably arranged through the fixed plate 21 and the fixed mold 25. The outer ends of the plurality of top pillars 32 are all flush with the inner bottom of the fixed mold 25 to avoid affecting the quality of the injection molded parts. The two long rods 33 are all fixedly arranged on the movable plate 31, and the two long rods 33 are all slidably arranged through the fixed plate 21 and the movable plate 24. The two first springs 34 are fixedly arranged on the movable plate 31, and the other ends of the two first springs 34 are fixedly arranged on the fixed plate 21. The two long rods 33 are respectively penetrated by the two first springs 34 and are movably arranged. The outer ends of the two long rods 33 are fixedly provided with top blocks 36. The two long rods 33 are fixedly provided with limit blocks 35. The limit blocks 35 are set against the fixed plate 21. The limit blocks 35 limit the long rods 33 and the movable plate 31, so that the outer ends of the plurality of top columns 32 are flush with the inner bottom of the fixed mold 25. The cooling assembly 5 further includes a refrigerator 51, a delivery pipe 52 and a rectangular cover 53. The refrigerator 51 is fixedly installed on the outer side of the movable plate 24. The refrigerator 51 is a prior art and can generate cold air. The delivery pipe 52 is fixedly connected to the air outlet of the refrigerator 51. The rectangular cover 53 is fixedly arranged on the inner side of the movable plate 24. The other end of the delivery pipe 52 passes through one side of the rectangular cover 53 and is fixedly arranged. The bottom of the rectangular cover 53 is penetrated with a heat dissipation hole 54 for heat dissipation. It also includes an anti-sticking component 6, which includes a lifting frame 61 and a plurality of second springs 62. The lifting frame 61 is slidably mounted on the outer side of the movable mold 26, and the lifting frame 61 is set against the outer edge of the fixed mold 25. The plurality of second springs 62 are all fixedly arranged on the inner side of the lifting frame 61, and the other ends of the plurality of second springs 62 are all fixedly arranged on the movable plate 24.
[0025] The detailed working process of the present invention is as follows: When in use, the staff drives the movable plate 24 to move toward the fixed plate 21 through the hydraulic rod 23, so that the movable mold 26 is embedded in the fixed mold 25, and the rectangular cover 53 covers the fixed mold 25 and the movable mold 26. At the same time, the movable plate 31 moves outward under the action of the two first springs 34, so that the two limit blocks 35 are against the fixed plate 21, and the two top blocks 36 are separated from the movable plate 24. At the same time, the fixed mold 25 supports the top frame 61 and squeezes the multiple second springs 62. Then, the injection molding machine can be used to inject into the fixed mold 25 and the movable mold 26 through the injection tube 27. After the injection is completed, cold air is transported into the rectangular cover 53 through the refrigerator 51 and the delivery tube 52, and the heat is dissipated through the heat dissipation holes 54, so that the fixed mold 25 and the movable mold 26 are quickly cooled and dissipated, so that the plastic parts are quickly finalized. After the plastic part is shaped, the refrigerator 51 is turned off, and the movable plate 24 is driven to move outward by the hydraulic rod 23, so that the movable mold 26 is separated from the fixed mold 25. At this time, the ejector frame 61 is reset under the action of the plurality of second springs 62. If the plastic part after injection molding is adhered to the movable mold 26, the plastic part adhered to the movable mold 26 can be pushed down and fall into the collection box 13 through the collection port 12; When the movable plate 24 continues to move outward after contacting the two ejector blocks 36, the movable plate 24 can drive the movable plate 31 to move in the same direction through the two long rods 33, and the movable plate 31 will drive the plurality of ejector posts 32 to move in the same direction, ejecting the plastic parts stuck in the fixed mold 25 and dropping them into the collection box 13 through the collection port 12; When disassembling the fixed mold 25 and the movable mold 26, the round rod 44 is rotated by the crank 46, and the round rod 44 drives the two threaded rods 42 to rotate at the same time through the connecting rod 43. Since the threads of the two threaded rods 42 are arranged in opposite directions, the two clamping plates 45 can be driven to move in opposite directions, thereby driving the two clamping plates 45 to move toward the outer ends and separate from the corresponding clamping holes 47. At this time, the fixed mold 25 or the movable mold 26 can be removed for replacement; when installing, the crank 46 is rotated in the opposite direction to drive the two clamping plates 45 to move toward the middle and clamp into the clamping holes 47 on the same side, and the fixed mold 25 or the movable mold 26 is tightened inward by the inclined surface, so that the fixed mold 25 or the movable mold 26 can be fixed. The replacement method of the fixed mold 25 and the movable mold 26 is the same.
[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.
Claims
1. An injection mold for producing plastic parts, characterized in that: include: A support platform (1); an injection molding assembly (2), the injection molding assembly (2) comprising a fixed plate (21), a hydraulic rod (23), a movable plate (24), a fixed mold (25) and a movable mold (26), the fixed plate (21) being fixedly arranged on the support platform (1), an L-shaped plate (22) being fixedly arranged on one side of the fixed plate (21), the hydraulic rod (23) being fixedly mounted on the inner side of the L-shaped plate (22), the movable plate (24) being fixedly arranged on the output end of the hydraulic rod (23), the fixed mold (25) and the movable mold (26) being arranged on the inner side of the fixed plate (21) and the movable plate (24) respectively, an injection molding tube (27) being arranged through the bottom of the fixed mold (25), the injection molding tube (27) being passed through the fixed plate (21) is fixedly arranged; a demoulding assembly (3) is arranged on the fixed plate (21), and the demoulding assembly (3) comprises a movable plate (31), a plurality of top columns (32), two long rods (33) and two first springs (34), the plurality of top columns (32) are fixedly arranged on the movable plate (31), the two long rods (33) are fixedly arranged on the movable plate (31), the two long rods (33) are slidably arranged through the fixed plate (21) and the movable plate (24), the two first springs (34) are fixedly arranged on the movable plate (31), the other ends of the two first springs (34) are fixedly arranged on the fixed plate (21), and the outer ends of the two long rods (33) are fixedly arranged with a top block (36).
2. An injection mold for producing plastic parts according to claim 1, characterized in that: in: The fixed plate (21) and the movable plate (24) are both provided with a mounting assembly (4), the mounting assembly (4) comprising two threaded rods (42), a connecting rod (43), a round rod (44) and two clamping plates (45). The fixed plate (21) and the movable plate (24) are both provided with a slide groove (41), the two threaded rods (42) are fixedly connected via the connecting rod (43), one of the threaded rods (42) is rotatably arranged on the inner wall of the slide groove (41), the round rod (44) is fixedly arranged on the outer end of the other threaded rod (42), the two threaded rods (42) respectively penetrate the two clamping plates (45) and are threadedly connected, and both ends of the fixed mold (25) and the movable mold (26) are provided with a clamping hole (47).
3. The injection mold for producing plastic parts according to claim 1, characterized in that: in: The cooling device also comprises a cooling assembly (5), the cooling assembly (5) comprising a refrigerator (51), a delivery pipe (52) and a rectangular cover (53), the refrigerator (51) being fixedly mounted on the outside of the movable plate (24), the delivery pipe (52) being fixedly connected to the air outlet of the refrigerator (51), the rectangular cover (53) being fixedly arranged on the inside of the movable plate (24), the other end of the delivery pipe (52) passing through one side of the rectangular cover (53) and being fixedly arranged, and a heat dissipation hole (54) passing through the bottom of the rectangular cover (53).
4. The injection mold for producing plastic parts according to claim 1, characterized in that: in: The anti-sticking component (6) further comprises a material ejecting frame (61) and a plurality of second springs (62). The material ejecting frame (61) is slidably sleeved on the outer side of the movable mold (26). The material ejecting frame (61) is arranged to abut against the outer edge of the fixed mold (25). The plurality of second springs (62) are fixedly arranged on the inner side of the material ejecting frame (61). The other ends of the plurality of second springs (62) are fixedly arranged on the movable plate (24).
5. The injection mold for producing plastic parts according to claim 1, characterized in that: in: The plurality of top columns (32) are all slidably disposed through the fixed plate (21) and the fixed mold (25), and the outer ends of the plurality of top columns (32) are all disposed flush with the inner bottom of the fixed mold (25).
6. The injection mold for producing plastic parts according to claim 1, characterized in that: in: A limit block (35) is fixedly disposed on each of the two long rods (33), and each of the limit blocks (35) is disposed against the fixed plate (21). The two long rods (33) are movably disposed so as to penetrate two first springs (34) respectively.
7. The injection mold for producing plastic parts according to claim 2, characterized in that: in: The two round rods (44) respectively penetrate one side of the fixed plate (21) and the movable plate (24) and are rotatably arranged. The outer ends of the two round rods (44) are fixedly provided with a crank (46). The clamping plate (45) is arranged in an L-shape. The inner side of the outer end of the clamping plate (45) is arranged in an inclined surface. The clamping plate (45) is arranged in cooperation with the corresponding clamping hole (47).
8. The injection mold for producing plastic parts according to claim 1, characterized in that: in: A bracket (11) is fixedly provided at the bottom of the support platform (1), a collecting port (12) is provided through the support platform (1), a collecting box (13) is placed on the bracket (11), and the collecting box (13) is provided in coordination with the collecting port (12).