A cold runner rubber injection molding mold

Abstract

The utility model discloses a cold runner rubber injection molding mould, including work plane and injection molding machine spray head, work plane bottom fixed mounting has the support leg, work plane fixed mounting has the support plate, work plane fixed mounting has the lower die plate, the lower die plate top installs the second separate die plate, the second separate die plate top installs the first separate die plate, the utility model discloses, when single -time molding ends, push rod motor drives injection molding machine spray head and upper die plate and the lower mold separate, first motor and second motor are started simultaneously through first screw rod and second screw rod and first connecting plate and second connecting plate engage drive first separate die plate and second separate die plate rise, at this moment, the rubber forming piece after forming can be removed, and then is driven first screw rod rotation and first connecting plate engagement through first motor alone, make first separate die plate and second separate die plate separate, at this moment, the waste in auxiliary separate groove can be removed.

Description

Technical Field

[0001] This utility model relates to the field of cold runner mold technology, specifically a cold runner rubber spray molding mold. Background Technology

[0002] Cold runner molds are a type of injection mold where the plastic in the runner cools and solidifies after injection, demolding along with the product. The working process of a cold runner mold mainly includes plastic injection, runner flow, cooling and solidification, and demolding. Its advantages include high economy, convenient maintenance, strong material adaptability, and flexible design, but it also has disadvantages such as material loss, long molding cycles, and waste disposal. Cold runner molds are widely used in the automotive, home appliance, toy manufacturing, and electronics industries, among others. As a traditional injection molding equipment, cold runner molds have a long history and mature technology. With industrial development and technological progress, they are constantly being improved, such as optimizing runner layout design to reduce waste rate and improving cooling systems to shorten molding cycles.

[0003] Common cold runner molds require manual separation after molding. Some cold runner molds have many layers, making disassembly cumbersome and time-consuming. This leads to an increase in production time per process. Therefore, a cold runner rubber spray molding mold is needed to meet people's needs. Utility Model Content

[0004] The purpose of this invention is to provide a cold runner rubber spray molding die to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a cold runner rubber injection molding die, comprising a working plane and an injection molding machine nozzle; a support leg is fixedly installed at the bottom of the working plane, a support plate is fixedly installed on the working plane, a lower template is fixedly installed on the working plane, a second separation template is installed above the lower template, a first separation template is installed above the second separation template, an upper template is installed above the first separation template, the injection molding machine nozzle is fixedly installed on the upper template, a push rod motor is fixedly installed on the support plate, the end of the injection molding machine nozzle away from the upper template is fixedly installed on the output shaft of the push rod motor, and automatic template separation devices are provided on both sides of the first and second separation templates.

[0006] Preferably, the automatic template separation device includes a first motor and a second motor, which are respectively installed on the bottom sides of the working plane. A first lead screw is installed on the first motor and a second lead screw is installed on the second motor.

[0007] Preferably, a first connecting plate is fixedly installed on both sides of the first separation template, and a second connecting plate is fixedly installed on both sides of the second separation template, with the first lead screw and the second lead screw passing through the first connecting plate and the second connecting plate.

[0008] Preferably, a first threaded hole is formed on the first connecting plate near the first lead screw, and a first through hole is formed on the second connecting plate near the first lead screw. The axis lines of the first threaded hole and the first through hole are collinear. The diameter of the first threaded hole is larger than that of the first through hole. The first lead screw is threadedly engaged with the first threaded hole, and the first lead screw is rotatably installed in the first through hole.

[0009] Preferably, a second through hole is formed on the first connecting plate near the second lead screw, and a second threaded hole is formed on the second connecting plate near the second lead screw. The axis of the second through hole and the second threaded hole are collinear. The diameter of the second through hole is larger than that of the second threaded hole. The second threaded hole is threadedly engaged with the second lead screw, and the second lead screw is rotatably installed in the second through hole.

[0010] Preferably, a first slide rod and a second slide rod are respectively installed on one side of the first lead screw and the second lead screw. Both the first connecting plate and the second connecting plate have slide rod holes, and the first slide rod and the second slide rod are slidably installed within the slide rod holes.

[0011] Preferably, the upper template has a flow channel hole, the second separation template has an auxiliary separation groove, and the bottom of the second separation template has a forming groove. The flow channel hole communicates with the auxiliary separation groove, and the auxiliary separation groove communicates with the forming groove.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] (1) In this utility model, after a single molding is completed, the push rod motor drives the injection molding machine nozzle and the upper template to separate from the lower mold. At this time, the first motor and the second motor start simultaneously and drive the first separation template and the second separation template to rise through the engagement of the first lead screw and the second lead screw with the first connecting plate and the second connecting plate. At this time, the molded rubber part can be removed. Then, the first motor drives the first lead screw to rotate and engage with the first connecting plate, so that the first separation template and the second separation template are separated. At this time, the waste material in the auxiliary separation tank can be removed.

[0014] (2) By setting an auxiliary separation groove in the second separation template, and gradually reducing the aperture at the connection between the auxiliary separation groove and the molding groove, and gradually reducing the aperture between the flow channel hole and the injection molding machine nozzle, the waste material in the material hole can be easily broken from the finer connection when separating the mold and the molding material, which facilitates the separation of the waste material from the injection molding machine nozzle and the molded part formed in the molding groove. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of a cold runner rubber spray molding die proposed in this utility model;

[0016] Figure 2 This is a structural diagram of the first connecting plate and the second connecting plate of a cold runner rubber spray molding die proposed in this utility model.

[0017] Figure 3 for Figure 2 Enlarged view of point A;

[0018] Figure 4 This is a structural diagram of the second slide bar and the first slide bar of a cold runner rubber spray molding die proposed in this utility model;

[0019] Figure 5 This is a structural diagram of the first threaded hole and the first through hole of a cold runner rubber spray molding die proposed in this utility model.

[0020] In the diagram: 1. Working plane; 2. Automatic template separation device; 3. Injection molding machine nozzle; 4. Upper template; 5. Flow channel hole; 6. First separation template; 7. Second separation template; 8. Auxiliary separation groove; 9. Molding groove; 10. Lower template; 11. Support plate; 12. Support leg; 13. Push rod motor; 200. First connecting plate; 201. Second connecting plate; 202. First motor; 203. First lead screw; 204. First slide rod; 205. Second motor; 206. Second lead screw; 207. Second slide rod; 208. Slide rod hole; 209. First threaded hole; 210. First through hole; 211. Second threaded hole; 212. Second through hole. Detailed Implementation

[0021] 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.

[0022] Example 1: Please refer to Figure 1-5This utility model provides a technical solution: a cold runner rubber injection molding die, including a working plane 1 and an injection molding machine nozzle 3; in order to design a molding die that can mechanically assist in mold separation and demolding, a support leg 12 is fixedly installed at the bottom of the working plane 1, a support plate 11 is fixedly installed on the working plane 1, a lower template 10 is fixedly installed on the working plane 1, a second separation template 7 is installed above the lower template 10, a first separation template 6 is installed above the second separation template 7, an upper template 4 is installed above the first separation template 6, and the injection molding machine nozzle 3 is fixedly installed. On the upper template 4, a push rod motor 13 is fixedly installed on the support plate 11. The injection molding machine nozzle 3 is fixedly installed on the output shaft of the push rod motor 13 at the end away from the upper template 4. Automatic template separation devices 2 are provided on both sides of the first separation template 6 and the second separation template 7. The lower template 10, the second separation template 7, the first separation template 6 and the upper template 4 together form a molding mold. The push rod motor 13 drives the injection molding machine nozzle 3 and the upper template 4 to rise and fall. The automatic template separation device 2 drives the second separation template 7 and the first separation template 6 to rise and fall to remove material and waste.

[0023] To achieve the function of mechanically assisting in lifting and adjusting the mold position, the automatic template separation device 2 includes a first motor 202 and a second motor 205. The first motor 202 and the second motor 205 are respectively installed on both sides of the bottom of the working plane 1. A first lead screw 203 is installed on the first motor 202, and a second lead screw 206 is installed on the second motor 205. A first connecting plate 200 is fixedly installed on both sides of the first separation template 6, and a second connecting plate 201 is fixedly installed on both sides of the second separation template 7. The first lead screw 203 and the second lead screw 206 pass through the first connecting plate 200 and the second connecting plate 201. A first threaded hole 209 is opened on the first connecting plate 200 near the first lead screw 203. The second connecting plate 201 has a first through hole 210. The first threaded hole 209 and the first through hole 210 are collinear. The diameter of the first threaded hole 209 is larger than that of the first through hole 210. The first lead screw 203 is threadedly engaged with the first threaded hole 209 and is rotatably mounted in the first through hole 210. The first connecting plate 200 near the second lead screw 206 has a second through hole 212. The second connecting plate 201 near the second lead screw 206 has a second threaded hole 211. The second through hole 212 and the second threaded hole 211 are collinear. The diameter of the second through hole 212 is larger than that of the second threaded hole 211. The second threaded hole 211 is threadedly engaged with the second lead screw 206 and allows the second lead screw 206 to rotate. Installed in the second through hole 212, the first lead screw 203 and the second lead screw 206 are respectively equipped with a first slide rod 204 and a second slide rod 207 on one side. The first connecting plate 200 and the second connecting plate 201 both have slide rod holes 208. The first slide rod 204 and the second slide rod 207 are slidably installed in the slide rod holes 208. In this invention, the injection molding machine nozzle 3 is connected to the powder coating device, and the injection molding machine nozzle 3 sprays out the raw material. During molding, the first separating template 6, the second separating template 7, and the lower template 10 are all in contact. The push rod motor 13 drives the injection molding machine nozzle 3 to descend, allowing the nozzle end of the injection molding machine nozzle 3 to sink into the upper template 4 for powder coating. During powder coating, the raw material enters the flow channel in the upper template 4 through the injection molding machine nozzle 3. The material enters the auxiliary separation groove 8 through the hole 5, and then enters the molding groove 9 for molding. After a single molding is completed, the push rod motor 13 drives the injection molding machine nozzle 3 and the upper template 4 to rise and separate from the mold below. At this time, the first motor 202 and the second motor 205 start simultaneously, and the first lead screw 203 and the second lead screw 206 engage with the first connecting plate 200 and the second connecting plate 201 to drive the first separation template 6 and the second separation template 7 to rise, so that the molded rubber part can be removed. Then, the first motor 202 drives the first lead screw 203 to rotate and engage with the first connecting plate 200, so that the first separation template 6 and the second separation template 7 are separated, and the waste material in the auxiliary separation groove 8 can be removed.

[0024] Example 2: Figure 2-3To facilitate the separation of waste material from the nozzle and molded parts in the sprue, the upper template 4 has a flow channel hole 5, the second separation template 7 has an auxiliary separation groove 8, and the bottom of the second separation template 7 has a molding groove 9. The flow channel hole 5 communicates with the auxiliary separation groove 8, and the auxiliary separation groove 8 communicates with the molding groove 9. By setting the auxiliary separation groove 8 in the second separation template 7, and the aperture of the auxiliary separation groove 8 and the molding groove 9 gradually decreasing, and the aperture between the flow channel hole 5 and the injection molding nozzle 3 gradually decreasing, the waste material in the sprue can be easily broken off from the narrower connection when separating the mold and the molding material, which facilitates the separation of the waste material from the injection molding nozzle 3 and the molded parts formed in the molding groove 9. The remaining features are the same as in Embodiment 1.

[0025] The working principle is as follows: In use, the injection molding machine nozzle 3 is connected to the powder coating device. The injection molding machine nozzle 3 sprays out the raw material. During molding, the first separation template 6, the second separation template 7, and the lower template 10 are all in contact. The push rod motor 13 drives the injection molding machine nozzle 3 to descend, allowing the nozzle end of the nozzle 3 to sink into the upper template 4 for powder coating. During powder coating, the raw material enters the flow channel hole 5 in the upper template 4 through the injection molding machine nozzle 3 and then enters the auxiliary separation groove 8. After passing through the auxiliary separation groove 8, it enters the molding groove 9 for molding. After a single molding cycle, the push rod motor 13 drives the injection molding machine nozzle 3 and the upper template 4 to rise and separate from the mold below. At this time, the first motor 202 and the second motor 205 start simultaneously, passing through the first lead screw 203 and the second lead screw 205. The first separating template 6 and the second separating template 7 are driven to rise by engaging with the first connecting plate 200 and the second connecting plate 201, so that the molded rubber part can be removed. Then, the first lead screw 203 is driven to rotate by the first motor 202 and engage with the first connecting plate 200, so that the first separating template 6 and the second separating template 7 are separated. At this time, the waste material in the auxiliary separating groove 8 can be removed. By setting the auxiliary separating groove 8 in the second separating template 7, and the aperture of the auxiliary separating groove 8 and the molding groove 9 gradually decreasing, and the aperture between the flow channel hole 5 and the injection molding machine nozzle 3 gradually decreasing, the waste material in the material hole can be easily broken from the narrower connection when separating the mold and the molding material, which facilitates the separation of the waste material from the molding part formed in the injection molding machine nozzle 3 and the molding groove 9.

[0026] 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, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cold runner rubber injection molding die, comprising a working plane (1) and an injection molding machine nozzle (3); characterized in that: The working plane (1) is fixedly installed with a support leg (12) at the bottom. The working plane (1) is fixedly installed with a support plate (11). The working plane (1) is fixedly installed with a lower template (10). The lower template (10) is installed with a second separation template (7) above it. The second separation template (7) is installed with a first separation template (6) above it. The first separation template (6) is installed with an upper template (4) above it. The injection molding machine nozzle (3) is fixedly installed on the upper template (4). The support plate (11) is fixedly installed with a push rod motor (13). The end of the injection molding machine nozzle (3) away from the upper template (4) is fixedly installed on the output shaft of the push rod motor (13). The first separation template (6) and the second separation template (7) are provided with automatic template separation devices (2) on both sides.

2. The cold runner rubber spray molding die according to claim 1, characterized in that: The automatic template separation device (2) includes a first motor (202) and a second motor (205). The first motor (202) and the second motor (205) are respectively installed on the bottom sides of the working plane (1). A first lead screw (203) is installed on the first motor (202) and a second lead screw (206) is installed on the second motor (205).

3. The cold runner rubber spray molding die according to claim 2, characterized in that: The first separation template (6) is fixedly installed with a first connecting plate (200) on both sides, and the second separation template (7) is fixedly installed with a second connecting plate (201) on both sides. The first lead screw (203) and the second lead screw (206) pass through the first connecting plate (200) and the second connecting plate (201).

4. The cold runner rubber spray molding die according to claim 3, characterized in that: A first threaded hole (209) is opened on the first connecting plate (200) near the first lead screw (203), and a first through hole (210) is opened on the second connecting plate (201) near the first lead screw (203). The axis of the first threaded hole (209) and the first through hole (210) are collinear. The diameter of the first threaded hole (209) is larger than that of the first through hole (210). The first lead screw (203) is threadedly engaged with the first threaded hole (209), and the first lead screw (203) is rotatably installed in the first through hole (210).

5. A cold runner rubber spray molding die according to claim 4, characterized in that: A second through hole (212) is opened on the first connecting plate (200) near the second lead screw (206), and a second threaded hole (211) is opened on the second connecting plate (201) near the second lead screw (206). The second through hole (212) and the second threaded hole (211) are collinear. The diameter of the second through hole (212) is larger than that of the second threaded hole (211). The second threaded hole (211) is threadedly engaged with the second lead screw (206). The second lead screw (206) is rotatably installed in the second through hole (212).

6. A cold runner rubber spray molding die according to claim 5, characterized in that: The first lead screw (203) and the second lead screw (206) are respectively equipped with a first slide rod (204) and a second slide rod (207) on one side. The first connecting plate (200) and the second connecting plate (201) are both provided with slide rod holes (208). The first slide rod (204) and the second slide rod (207) are slidably installed in the slide rod holes (208).

7. A cold runner rubber spray molding die according to claim 1, characterized in that: The upper template (4) has a flow channel hole (5), the second separation template (7) has an auxiliary separation groove (8), and the bottom of the second separation template (7) has a forming groove (9). The flow channel hole (5) is connected to the auxiliary separation groove (8), and the auxiliary separation groove (8) is connected to the forming groove (9).

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