Injection vulcanizing machine production mold
By designing a cylinder-driven toothed rack system for the molds used in injection vulcanizing machines, automatic demolding of ring-shaped rubber was achieved, solving the problem of ring mold adhesion, improving production efficiency and reducing labor costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGGUO QICHEN RUBBER & PLASTIC PRODUCTS CO LTD
- Filing Date
- 2025-05-12
- Publication Date
- 2026-07-21
AI Technical Summary
Existing ring-shaped rubber molds tend to stick to the inside of the cavity after vulcanization, making demolding difficult and requiring manual operation one by one, which reduces production efficiency and increases labor costs.
Design a mold for injection vulcanizing machine production, which adopts an upper mold plate, a middle mold plate outer frame and a lower mold plate structure. The first module and the second module are moved relative to each other by a cylinder-driven gear rack system to realize the automatic demolding of the ring rubber.
It improves production efficiency, reduces labor costs, avoids adhesion between the mold and the cavity, and simplifies the demolding process.
Smart Images

Figure CN224527741U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of rubber production technology, specifically to a mold for injection vulcanizing machines. Background Technology
[0002] Rubber molds perform exceptionally well in recessed areas that are difficult to access within complex mold cavities. Their elasticity and plasticity enable them to effectively transmit molding pressure, ensuring that the rubber material is fully filled and cured. Through vulcanizing machines, high-quality, consistent rubber products can be produced.
[0003] Rubber molds are mainly classified into open molds, closed molds, flat molds, or ring molds according to their structure.
[0004] Rubber products need to be demolded after vulcanization. However, when demolding, the existing ring molds tend to stick to the inside of the cavity, requiring manual removal one by one, resulting in low production efficiency and increased labor costs.
[0005] Patent CN205395017U discloses an easy-to-demold rubber mold, which is configured with a moving template, a fixed template, a cavity, and a core. The core includes a fixed core and a movable core for forming a corrugated tube. It also includes a demolding mechanism for easy manual demolding. The demolding mechanism includes a core fixing block connected to the fixed core, a core-pulling block connected to the movable core for driving the movable core to detach from the fixed core, and positioning plates located on both sides of the core fixing block. The positioning plates are provided with a zigzag track for sliding the core-pulling block. The zigzag track includes a horizontal section and a turning section connected to the horizontal section. During demolding, the core-pulling block drives the movable core to detach from the fixed core and slide away along the zigzag track, leaving enough space for workers to manually demold. Workers can manually demold by pulling the rubber part.
[0006] However, the mold in this patent has the following drawbacks: after vulcanization, the mold is prone to sticking to the inside of the cavity, making demolding difficult and usually requiring manual operation one by one. Utility Model Content
[0007] To address the technical problem in existing technologies where ring-shaped rubber products require demolding after vulcanization, and the ring mold easily adheres to the inside of the cavity, making demolding difficult, this invention provides a mold for injection vulcanizing machines.
[0008] The objective of this utility model can be achieved through the following technical solutions:
[0009] A mold for producing injection vulcanizing machines includes an upper mold plate and a middle mold plate frame installed at the bottom of the upper mold plate. A lower mold plate is installed at the bottom of the middle mold plate frame. A cavity is provided on one side of the middle mold plate frame, and the middle part of the middle mold plate frame is hollow. A plurality of first modules and second modules are provided in the middle part of the middle mold plate frame. A first connecting rod is fixedly installed on one side of the first module, and a second connecting rod is fixedly installed on one side of the second module. The other end of each first connecting rod is fixedly connected to a second toothed row, and the other end of each second connecting rod is fixedly connected to a first toothed row. Gears mesh in the middle of the first toothed row and the second toothed row.
[0010] Furthermore, each corner of the upper template is fixedly equipped with a plug rod, each corner of the middle template outer frame is provided with a through second plug hole, and each corner of the lower template is provided with a first plug hole; the plug rod is set in correspondence with the first plug hole and the second plug hole.
[0011] Furthermore, the first module and the second module are arranged alternately, with the first module and the second module being configured in a one-to-one correspondence.
[0012] Furthermore, a plurality of uniformly arranged cavity holes are provided between the first module and the second module, and the cavity holes are circular in shape.
[0013] Furthermore, both the first connecting rod and the second connecting rod are located in the cavity, and the height of the first connecting rod is lower than the height of the second connecting rod.
[0014] Furthermore, the teeth of the first and second gear rows are arranged opposite each other, and a rotating rod is rotatably mounted on the bottom of the gear, with the other end of the rotating rod fixedly mounted on the inner wall of the cavity of the outer frame of the middle template.
[0015] Furthermore, guide rods are slidably provided at both ends of the first module and the second module, and the guide rods pass through the first module and the second module.
[0016] Furthermore, a fixing rod is fixedly provided at the position of the lower template corresponding to the cavity hole.
[0017] The beneficial effects of this utility model are:
[0018] This invention uses a cylinder to drive the second toothed row to move, which in turn drives the gear to rotate. The gear drives the first toothed row to move in the opposite direction to the second toothed row. The first toothed row drives the second connecting rod to move in the same direction, and the second toothed row drives the first connecting rod to move in the same direction. The first module and the second module move relative to each other or in opposite directions. When the annular rubber is molded, the first module and the second module move relative to each other. When the annular rubber is demolded, the first module and the second module move in opposite directions simultaneously. The annular rubber is easy to detach, which improves production efficiency, reduces labor costs, and avoids the annular mold sticking to the inside of the cavity after vulcanization. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0020] Figure 2 This is a detailed view of the positions of the middle template outer frame and the lower template of this utility model;
[0021] Figure 3 This is a detailed view of the location of the cavity part of the template outer frame in this utility model;
[0022] Figure 4 This is a schematic diagram of the internal structure of the template outer frame in this utility model;
[0023] The attached diagram lists the components represented by each number as follows:
[0024] 1. Upper template; 101. Insert rod; 2. Lower template; 201. First insertion hole; 202. Fixing rod; 3. Middle template outer frame; 301. Second insertion hole; 302. Cavity; 4. First module; 5. Second module; 6. Cavity hole; 7. Guide rod; 8. First connecting rod; 9. Second connecting rod; 10. First gear row; 11. Second gear row; 12. Gear; 13. Rotating rod; 14. Cylinder; 15. Support block. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example
[0026] Please see Figure 1 and Figure 2 As shown, a mold for injection vulcanizing machine production includes an upper mold plate 1 and a middle mold plate outer frame 3 installed at the bottom of the upper mold plate 1, and a lower mold plate 2 installed at the bottom of the middle mold plate outer frame 3; the upper mold plate 1 and the lower mold plate 2 are rectangular in shape.
[0027] Insert rods 101 are fixedly installed at the corners of the upper template 1, and a second through-hole 301 is provided at the corner of the outer frame 3 of the middle template, and a first through-hole 201 is provided at the corner of the lower template 2; the insert rods 101 are set in correspondence with the first through-hole 201 and the second through-hole 301.
[0028] The upper template 1, the middle template outer frame 3, and the lower template 2 can be connected in sequence by the insert rod 101, which can play a certain role in fixing the mold during vulcanization.
[0029] Please refer to it again. Figure 3 and Figure 4 As shown, a cavity 302 is provided on one side of the outer frame 3 of the middle template. The middle part of the outer frame 3 of the middle template is empty. Multiple first modules 4 and second modules 5 are provided in the middle part of the outer frame 3 of the middle template. The first modules 4 and second modules 5 are arranged alternately.
[0030] A first connecting rod 8 is fixedly installed on the left side of the first module 4, and a second connecting rod 9 is fixedly installed on the left side of the second module 5. The first module 4 and the second module 5 are arranged in a one-to-one correspondence. The first connecting rod 8 and the second connecting rod 9 are both located inside the cavity 302.
[0031] Multiple uniformly arranged cavity holes 6 are provided between the corresponding first module 4 and second module 5. The cavity holes 6 are circular in shape and are used for the installation of the mold core.
[0032] The other end of the first connecting rod 8 is fixedly connected to the lower part of the second tooth row 11, and the teeth of the second tooth row 11 are set on the upper part of the tooth row; the other end of the second connecting rod 9 is fixedly connected to the middle part of the first tooth row 10.
[0033] The height of the first connecting rod 8 is lower than the height of the second connecting rod 9, and the height of the first connecting rod 8 is lower than the height of the first toothed row 10.
[0034] The teeth of the first tooth row 10 and the second tooth row 11 are arranged opposite each other. A gear 12 meshes in the middle of the first tooth row 10 and the second tooth row 11. A rotating rod 13 is rotatably installed at the bottom of the gear 12. The other end of the rotating rod 13 is fixedly installed on the inner wall of the cavity 302 of the outer frame of the middle template 3.
[0035] A cylinder 14 is provided at one end of the second toothed row 11. The output end of the cylinder 14 is connected to the second toothed row 11. A support block 15 is fixedly provided at the bottom of the cylinder 14. The other end of the support block 15 is fixedly installed on the inner wall of the cavity 302 of the outer frame of the middle template 3.
[0036] To further secure the first toothed row 10 and the second toothed row 11, a support rod (not shown in the figure) is provided at the bottom of the first toothed row 10 and the second toothed row 11. The bottom of the support rod is slidably installed on the inner wall of the cavity 302 of the outer frame of the middle template 3.
[0037] Guide rods 7 are slidably provided at both ends of the first module 4 and the second module 5. The guide rods 7 pass through the first module 4 and the second module 5, and the first module 4 and the second module 5 slide and open on the guide rods 7.
[0038] The cylinder 14 drives the second gear row 11 to move, the second gear row 11 drives the gear 12 to rotate, the gear 12 drives the first gear row 10 to move in the opposite direction to the second gear row 11, the first gear row 10 drives the second connecting rod 9 to move in the same direction, the second gear row 11 drives the first connecting rod 8 to move in the same direction, the first module 4 and the second module 5 move relative to each other or in opposite directions, when the annular rubber is molded, the first module 4 and the second module 5 move relative to each other, when the annular rubber is demolded, the first module 4 and the second module 5 move in opposite directions.
[0039] A fixing rod 202 is fixedly provided at the position of the lower template 2 corresponding to the cavity hole 6. The fixing rod 202 is located at the middle position of the cavity hole 6. When the annular rubber sleeve with open ends is injection vulcanized, the fixing rod 202 can fix the position of the annular rubber sleeve.
[0040] To facilitate understanding of the above-mentioned technical solution of this utility model, the working principle or operation method of this utility model in actual process will be described in detail below:
[0041] Then, by starting the cylinder 14, the cylinder 14 drives the second gear row 11 to move upward on the gear 12. The gear 12 meshes and drives the first gear row 10 to move downward. The first module 4 and the second module 5 can be opened at the same time. Under the action of the fixing rod 202, the mold core is fixed in the middle of the fixing rod 202. When the first module 4 and the second module 5 are opened at the same time, the annular rubber sleeve can be separated from the first module 4 and the second module 5 respectively and detached, and the formed annular rubber can be taken out.
[0042] It should be noted that, in this document, terms such as “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.
Claims
1. A mold for injection molding machine production, comprising an upper mold plate (1) and a middle mold plate outer frame (3) installed at the bottom of the upper mold plate (1), wherein a lower mold plate (2) is installed at the bottom of the middle mold plate outer frame (3); characterized in that, The outer frame (3) of the middle template has a cavity (302) on one side. The middle part of the outer frame (3) is empty. The middle part of the outer frame (3) has multiple first modules (4) and second modules (5). A first connecting rod (8) is fixedly installed on one side of the first module (4). A second connecting rod (9) is fixedly installed on one side of the second module (5). The other end of the first connecting rod (8) is fixedly connected to the second tooth row (11). The other end of the second connecting rod (9) is fixedly connected to the first tooth row (10). Gears (12) mesh in the middle of the first tooth row (10) and the second tooth row (11).
2. The mold for injection vulcanizing machine production according to claim 1, characterized in that, The upper template (1) is fixedly installed with a plug rod (101) at each corner, the middle template outer frame (3) is provided with a through second plug hole (301) at each corner, and the lower template (2) is provided with a first plug hole (201) at each corner; the plug rod (101) is set in correspondence with the first plug hole (201) and the second plug hole (301).
3. The mold for injection vulcanizing machine production according to claim 1, characterized in that, The first module (4) and the second module (5) are arranged alternately, and the first module (4) and the second module (5) are set in a one-to-one correspondence.
4. The mold for injection vulcanizing machine production according to claim 3, characterized in that, Multiple uniformly arranged cavity holes (6) are provided between the first module (4) and the second module (5), and the cavity holes (6) are circular in shape.
5. The mold for injection vulcanizing machine production according to claim 1, characterized in that, The first connecting rod (8) and the second connecting rod (9) are both located in the cavity (302), and the height of the first connecting rod (8) is lower than the height of the second connecting rod (9).
6. The mold for injection vulcanizing machine production according to claim 1, characterized in that, The teeth of the first gear row (10) and the second gear row (11) are arranged opposite each other. A rotating rod (13) is rotatably mounted on the bottom of the gear (12). The other end of the rotating rod (13) is fixedly mounted on the inner wall of the cavity (302) of the outer frame of the middle template (3).
7. The mold for injection vulcanizing machine production according to claim 4, characterized in that, Guide rods (7) are slidably provided at both ends of the first module (4) and the second module (5), and the guide rods (7) pass through the first module (4) and the second module (5).
8. A mold for injection vulcanizing machine production according to claim 2, characterized in that, The lower template (2) is fixedly provided with a fixing rod (202) at the position corresponding to the cavity hole (6).