Exhaust mechanism of injection mold

Abstract

The utility model relates to the technical field of injection mold equipment, in particular to an exhaust mechanism of an injection mold, which adopts the technical scheme that the exhaust mechanism comprises a box body, a feeding hole is formed in the upper end of the box body, a stirring cavity is formed in the lower end of the feeding hole, a blanking cavity is formed in the lower end of the stirring cavity, and a blanking channel is formed in the lower end of the blanking cavity; the lower end of the discharging channel is connected with a forming cavity, an exhaust pipe is arranged at the upper end of the forming cavity, and the end, away from the forming cavity, of the exhaust pipe is connected with a connector. According to the utility model, the exhaust mechanism is arranged in the injection mold, and air in the forming cavity can be exhausted in advance through the exhaust mechanism, so that the forming cavity can become a relatively vacuum environment, the injection molding can be smoothly completed, and the exhaust piece can be provided with a plurality of groups of exhaust mechanisms with different specifications in a sliding manner.

Description

Technical Field

[0001] The utility model relates to the technical field of injection mold equipment, in particular to an injection mold exhaust mechanism. Background Art

[0002] Injection mold is a processing technology mainly used to manufacture various plastic products. Its basic principle is to inject molten plastic material into the mold under high temperature conditions, and then cool and solidify to form the finished product of the desired shape. In the injection mold production process, the thermoplastic material is usually introduced into the injection mold, stirred, and then sent into the molding cavity for molding, thus completing the entire mold production process.

[0003] The prior art also has the following defects during use:

[0004] 1. Before the injection molding material is introduced into the injection mold, there may be a certain amount of air in the injection molding cavity. If the air cannot be discharged in time, it is easy to cause certain problems in the molded product, thereby causing the performance of the entire product to deteriorate and failing to improve production efficiency.

[0005] 2. Injection molds in the existing technology usually need to cool the injection cavity by water cooling to speed up the molding speed of the mold. If the coolant is only used once, a lot of water resources will be wasted, which is not conducive to improving production capacity and cannot optimize the industrial structure well.

[0006] In view of this, we propose an injection mold exhaust mechanism to solve the existing problem. Utility Model Content

[0007] The purpose of the present utility model is to provide an injection mold exhaust mechanism to solve the problems raised in the above background technology.

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an injection mold exhaust mechanism, comprising a box body, a feed port is provided at the upper end of the box body, a stirring chamber is provided at the lower end of the feed port, a discharge chamber is installed at the lower end of the stirring chamber, a discharge channel is installed at the lower end of the discharge chamber, the lower end of the discharge channel is connected to the molding cavity, an exhaust pipe is provided at the upper end of the molding cavity, the exhaust pipe is connected to a connecting head at one end away from the molding cavity, a sliding track is provided on one side of the box body, a plurality of sliding blocks are provided on the sliding track, a first exhaust mechanism and a second exhaust mechanism are installed on the sliding block, the first exhaust mechanism and the second exhaust mechanism are both provided with exhaust heads, a connecting structure is provided inside the first exhaust mechanism and the second exhaust mechanism, and the connecting head and the connecting structure are installed by threads.

[0009] Preferably, a water tank is provided on one side of the molding cavity, a coolant pipe is provided on the upper end of the water tank, the coolant pipe is close to the bottom and side of the molding cavity, the coolant pipe is connected to a circulating liquid pipe, one end of the circulating liquid pipe is connected to the coolant pipe, and the other end of the circulating liquid pipe is connected to the water tank.

[0010] Preferably, a cooling device is provided on one side of the circulating liquid pipe, a heat dissipation device is provided on the side of the cooling device close to the box body, and the box body is provided with multiple groups of heat dissipation holes close to the heat dissipation device.

[0011] Preferably, the upper end of one side of the water tank is connected to a water inlet pipe, the lower end of one side of the water tank is connected to a water outlet pipe, the coolant pipe is provided with a suction pump near the water tank, and the circulating liquid pipe is provided with a circulating pump near the water tank.

[0012] Preferably, an air valve is installed on the exhaust pipe, and a turning pipe is provided on the exhaust pipe close to the connecting head.

[0013] Preferably, a rotating rod is provided inside the stirring chamber, and a plurality of stirring rollers are fixed on the rotating rod.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. The utility model provides an exhaust mechanism in the injection mold, which can discharge the air in the molding cavity in advance, so that the molding cavity can become a relatively vacuum environment, ensuring the smooth completion of injection molding, and the exhaust parts can be slidably installed with multiple sets of exhaust mechanisms of different specifications, which are connected to the exhaust pipes respectively through the connecting structure, which can be easily switched according to different situations, thereby better improving the overall work efficiency.

[0016] 2. The utility model provides a water circulation structure in the injection mold. The coolant after cooling the molding cavity will re-enter the water tank through the circulation pipe, and will be cooled by the cooling device before entering the water tank. This can better save water resources and optimize the industrial structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the internal structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of point A of the present utility model;

[0019] Figure 3 This is a structural diagram of location B of the present utility model.

[0020] In the figure: 1. Box body; 2. Feed inlet; 3. Rotating rod; 4. Stirring chamber; 5. Stirring roller; 6. Cooling liquid pipe; 7. Molding chamber; 8. Circulating liquid pipe; 9. Cooling device; 10. Heat dissipation device; 11. Heat dissipation hole; 12. Feed channel; 13. Feed chamber; 14. Sliding track; 15. Sliding block; 16. First exhaust mechanism; 17. Exhaust head; 18. Connecting structure; 19. Connecting head; 20. Turning pipe; 21. Exhaust pipe; 22. Air valve; 23. Water inlet pipe; 24. Suction pump; 25. Water tank; 26. Circulating pump; 27. Water outlet pipe; 28. Second exhaust mechanism. DETAILED DESCRIPTION

[0021] The technical solution of the present invention is further described below with reference to the accompanying drawings and specific embodiments.

[0022] Example 1

[0023] like Figure 1 、 Figure 2 and Figure 3 As shown, the utility model proposes an injection mold exhaust mechanism, including a box body 1, a feed port 2 is provided at the upper end of the box body 1, the feed port 2 is used to introduce the injection molding material into the box body 1, a stirring chamber 4 is provided at the lower end of the feed port 2, the stirring chamber 4 is used to stir the injection molding material, a discharge chamber 13 is installed at the lower end of the stirring chamber 4, the discharge chamber 13 is used to discharge the injection molding material out of the stirring chamber 4, a discharge channel 12 is installed at the lower end of the discharge chamber 13, the discharge channel 12 is used to discharge the injection molding material into the molding cavity 7, the lower end of the discharge channel 12 is connected to the molding cavity 7, the molding cavity 7 is used to form a complete finished product, an exhaust pipe 21 is provided at the upper end of the molding cavity 7, the exhaust pipe 21 is used to discharge excess gas in the molding cavity 7, the exhaust pipe 21 is connected to the connector 19 at one end away from the molding cavity 7, a sliding rail 14 is provided on one side of the box body 1, and multiple groups of The sliding block 15 drives the first exhaust mechanism 16 and the second exhaust mechanism 28 to slide on the sliding track 14. The first exhaust mechanism 16 and the second exhaust mechanism 28 are installed on the sliding block 15. The first exhaust mechanism 16 and the second exhaust mechanism 28 can discharge the excess gas in the molding cavity 7. The first exhaust mechanism 16 and the second exhaust mechanism 28 are both provided with an exhaust head 17. The exhaust head 17 is used to discharge the excess gas, thereby making the molding cavity 7 a relatively vacuum environment. The first exhaust mechanism 16 and the second exhaust mechanism 28 are both provided with a connecting structure 18. The connecting head 19 and the connecting structure 18 are installed by threads. The connecting head 19 can be twisted with the connecting structure 18, and the two are tightly connected together by threads. According to different situations, the connecting head 19 can be connected to different exhaust mechanisms.

[0024] Furthermore, a water tank 25 is provided on one side of the molding cavity 7, and a coolant pipe 6 is provided on the upper end of the water tank 25. The coolant pipe 6 is close to the bottom and side of the molding cavity 7, and the coolant pipe 6 is connected to the circulating liquid pipe 8. One end of the circulating liquid pipe 8 is connected to the coolant pipe 6, and the other end of the circulating liquid pipe 8 is connected to the water tank 25. The coolant pipe 6 is used to cool the bottom and side of the molding cavity 7, and the circulating liquid pipe 8 is used to circulate the cooled coolant to the water tank 25 for secondary use.

[0025] Furthermore, a cooling device 9 is provided on one side of the circulating liquid pipe 8, and a heat dissipation device 10 is provided on the side of the cooling device 9 close to the box body 1. The box body 1 is provided with multiple groups of heat dissipation holes 11 close to the heat dissipation device 10. The heat dissipation device 10 is used to cool the circulating liquid pipe 8 and discharge excess heat through the heat dissipation holes 11.

[0026] Furthermore, an upper end of one side of the water tank 25 is connected to a water inlet pipe 23, and a lower end of one side of the water tank 25 is connected to a water outlet pipe 27. The coolant pipe 6 is provided with a suction pump 24 near the water tank 25, and the circulating liquid pipe 8 is provided with a circulating pump 26 near the water tank 25. The suction pump 24 is used to extract the coolant in the water tank 25 and allow it to enter the coolant pipe 6. The circulating pump 26 is used to re-inject the coolant in the circulating liquid pipe 8 into the water tank 25.

[0027] Furthermore, an air valve 22 is installed on the exhaust pipe 21, and a turning pipe 20 is provided on the exhaust pipe 21 near the connecting head 19. The air valve 22 is used to open and close the exhaust pipe 21. The turning pipe 20 allows the end of the exhaust pipe 21 to be extended within a certain range, making it convenient to connect it to the exhaust mechanism.

[0028] Furthermore, a rotating rod 3 is provided inside the stirring chamber 4 , and a plurality of stirring rollers 5 are fixed on the rotating rod 3 . The rotating rod 3 drives the plurality of stirring rollers 5 , which can well stir the injection molding material in the stirring chamber 4 .

[0029] The working principle of the exhaust mechanism of the injection mold based on Example 1 is: before the injection molding box 1 is used, different exhaust mechanisms are selected according to the size of the molding cavity 7 and the urgency of the injection molding, and the end of the exhaust pipe 21 is extended through the turning pipe 20 so that it is fixedly connected to the exhaust mechanism. Then, the injection molding material is put into the stirring chamber 4 through the feed port 2, and by stirring it, the injection molding material enters the molding cavity 7 through the discharge channel 12, and then is cooled by the coolant pipe 6 so that the product is quickly molded.

[0030] The above specific embodiments are only several preferred embodiments of the present invention. Based on the technical solutions of the present invention and the relevant inspirations of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. An injection mold exhaust mechanism, comprising a box (1), characterized in that: The upper end of the box body (1) is provided with a feed port (2), the lower end of the feed port (2) is provided with a stirring chamber (4), the lower end of the stirring chamber (4) is provided with a feed chamber (13), the lower end of the feed chamber (13) is provided with a feed channel (12), the lower end of the feed channel (12) is connected to the forming chamber (7), the upper end of the forming chamber (7) is provided with an exhaust pipe (21), the end of the exhaust pipe (21) away from the forming chamber (7) is connected to a connector (19), and one side of the box body (1) is provided with a A sliding track (14) is provided, and a plurality of sliding blocks (15) are arranged on the sliding track (14). A first exhaust mechanism (16) and a second exhaust mechanism (28) are installed on the sliding blocks (15). The first exhaust mechanism (16) and the second exhaust mechanism (28) are both provided with an exhaust head (17). The first exhaust mechanism (16) and the second exhaust mechanism (28) are both provided with a connecting structure (18). The connecting head (19) and the connecting structure (18) are installed by screw threads.

2. The injection mold exhaust mechanism according to claim 1, characterized in that: A water tank (25) is provided on one side of the molding cavity (7), a cooling liquid pipe (6) is provided on the upper end of the water tank (25), the cooling liquid pipe (6) is close to the bottom and side of the molding cavity (7), the cooling liquid pipe (6) is connected to a circulating liquid pipe (8), one end of the circulating liquid pipe (8) is connected to the cooling liquid pipe (6), and the other end of the circulating liquid pipe (8) is connected to the water tank (25).

3. The injection mold exhaust mechanism according to claim 2, characterized in that: A cooling device (9) is provided on one side of the circulating liquid pipe (8), a heat dissipation device (10) is provided on the side of the cooling device (9) close to the box body (1), and the box body (1) is provided with multiple groups of heat dissipation holes (11) close to the heat dissipation device (10).

4. The injection mold exhaust mechanism according to claim 2, characterized in that: The upper end of one side of the water tank (25) is connected to a water inlet pipe (23), the lower end of one side of the water tank (25) is connected to a water outlet pipe (27), the cooling liquid pipe (6) is provided with a suction pump (24) near the water tank (25), and the circulating liquid pipe (8) is provided with a circulating pump (26) near the water tank (25).

5. The injection mold exhaust mechanism according to claim 1, characterized in that: An air valve (22) is installed on the exhaust pipe (21), and a turning pipe (20) is provided on the exhaust pipe (21) near the connector (19).

6. The injection mold exhaust mechanism according to claim 1, characterized in that: A rotating rod (3) is provided inside the stirring chamber (4), and a plurality of stirring rollers (5) are fixed on the rotating rod (3).

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