A runner structure for an injection mold

Abstract

This utility model relates to the field of injection mold technology and discloses a flow channel structure for an injection mold, including a support body. An electric push rod is fixedly connected to the inner top wall of the support body. An injection plate is fixedly mounted on the output end of the electric push rod. A slider is slidably connected to the inner wall of the injection plate. A sliding plate is fixedly connected to the lower surface of the slider. A heating column is fixedly connected to the lower surface of the sliding plate. An upper mold is slidably connected to the outer wall of the heating column. A cleaning column is fixedly connected to the inner wall of the upper mold. A limit plate is fixedly connected to the upper surface of the upper mold. A load-bearing component is provided on the inner wall of the upper mold. In this utility model, after the electric push rod drives the injection plate to move the sliding plate to a certain height, the heating column can clean the injection ports on the injection plate and the sliding plate. This not only facilitates cleaning but also ensures that the temperature is uniform when the material flows into the injection cavity, thereby improving the yield rate.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, and in particular to a flow channel structure for an injection mold. Background Technology

[0002] In the field of plastic products, especially filter element manufacturing, injection molding is a widely used technology. Although traditional injection molding processes are mature, they have certain limitations when dealing with complex structures or precision requirements. In recent years, intelligent production and automated control have become one of the important trends in industry development. The application of these new technologies has significantly improved product quality and production efficiency, but it has also brought new challenges and technical difficulties. Overall, the current mainstream development direction of the industry is to improve equipment flexibility as the core goal, and to achieve a higher level of product manufacturing capabilities through optimized design and integration of advanced technologies.

[0003] A search revealed Chinese patent publication number CN217704540U, which discloses a delayed ejection structure for an injection mold runner. The structure comprises a mold body, inserts, and ejector pins. The inserts are assembled onto the mold body and move relative to it. The mold body restricts the direction and distance of movement of the inserts. The inserts have ejector pin holes communicating with the runner, and the ejector pin holes have a tapered portion near the runner in the mold body. The ejector pins are inserted into the ejector pin holes of the inserts to eject the molded material from the runner. The tapered portion carries the inserts synchronously, ensuring the material in the runner is fixed to the insert and does not fall off, thus achieving delayed ejection of the runner. This meets the requirements for automatic separation of the runner from the product and easy gripping by a robotic arm. The inserts automatically reset when the front and rear molds are closed. The structure is simple, easy to manufacture and implement, and can replace the method of adding a cold slug well to achieve delayed ejection of the runner, reducing runner weight and saving costs. However, during the use of the above molds, the temperature of the material may vary when it enters the runner, resulting in a low yield of automotive filter elements produced after injection molding and cooling. Utility Model Content

[0004] To overcome the above deficiencies, this utility model provides a flow channel structure for an injection mold, aiming to solve the problem in the prior art that during the process of injecting material into the upper mold to the lower mold, the material may have different temperatures when entering the flow channel, resulting in a low yield of automotive filter elements after injection molding and cooling.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a flow channel structure for an injection mold, comprising a support body, an electric push rod fixedly connected to the inner top wall of the support body, an injection plate fixedly disposed at the output end of the electric push rod, a slider slidably connected to the inner wall of the injection plate, a sliding plate fixedly connected to the lower surface of the slider, a sliding plate slidably connected to the upper surface of the sliding plate and the lower surface of the injection plate, a heating column fixedly connected to the lower surface of the sliding plate, an upper mold slidably connected to the outer wall of the heating column, an inner wall of the upper mold slidably connected to the outer wall of the sliding plate and the outer wall of the injection plate, an upper surface of the upper mold fixedly connected to the lower surface of the support body, a cleaning column fixedly connected to the inner wall of the upper mold, an outer wall of the cleaning column slidably connected to the inner wall of the sliding plate and the inner wall of the injection plate, a limit plate fixedly connected to the upper surface of the upper mold, and a bearing component provided on the inner wall of the upper mold.

[0006] The above technical solution involves: activating the electric push rod to raise the injection plate, causing the sliding plate to move beyond the height of the limit plate; moving the sliding plate out and causing the heating column to move out, thereby cleaning the residual plastic on the heating column; then inserting the sliding plate back in; and the electric push rod pushing the injection plate to move the sliding plate and causing the heating column to insert into the upper mold. This not only heats the material in the injection tank but also cleans the injection port. The cleaning column can clean the residual plastic in the sliding plate and the injection plate.

[0007] As a further description of the above technical solution: the bearing component includes a limiting post, the outer wall of the limiting post is slidably connected to the inner wall of the upper mold, and the outer wall of the limiting post is fixedly connected to the lower mold.

[0008] The above technical solution involves pressing the upper mold into contact with the lower mold, and then supporting the automotive filter element through injection molding. The set limit posts can restrict the movement trajectory of the upper mold, preventing the upper mold from shifting during injection molding and causing the finished filter element to be unqualified, thereby reducing production costs.

[0009] As a further description of the above technical solution: a fixing plate is fixedly connected to the outer wall of the lower mold, a water tank is provided on the lower side of the fixing plate, and a cooling component is provided on the right side of the water tank.

[0010] The above technical solution involves setting a fixing plate on the outer wall of the lower mold to connect with the cooling components, and setting a water tank below the lower mold to inject coolant into the water tank so that the lower mold comes into contact with the coolant, thereby cooling the finished product in the lower mold.

[0011] As a further description of the above technical solution:

[0012] The cooling assembly includes a fixing block, with the left side of the fixing block disposed on the right side of the water tank. A motor is fixedly connected to the upper surface of the fixing block, and a rotating rod is fixedly disposed at the output end of the motor. The outer wall of the rotating rod is rotatably connected to the inner wall of the water tank.

[0013] The above technical solution allows for the support of the motor by setting a fixed block on the left side of the water tank. Starting the motor drives the rotating rod to rotate in the water tank, thereby causing the rotating bracket fixed to the outer wall to rotate.

[0014] As a further description of the above technical solution:

[0015] A rotating bracket is fixedly connected to the outer wall of the rotating rod, and a connecting block is rotatably connected to the outer wall of the rotating bracket.

[0016] Through the above technical solution: the rotation of the rotating bracket causes it to unfold, which in turn pushes the connecting block to move, enabling the connecting block to rise and fall. The connecting plate on it moves synchronously, pushing the lower mold to move further.

[0017] As a further description of the above technical solution:

[0018] A connecting plate is fixedly connected to the outer wall of the connecting block, and the upper surface of the connecting plate is fixedly connected to the lower surface of the fixing plate.

[0019] Through the above technical solution: the movement of the connecting block will push the connecting plate to move, and at the same time, it will drive the fixed plate to rise and fall. The rise and fall of the fixed plate will drive the lower mold to rise and fall, so that the lower mold comes into contact with the coolant in the water tank, thereby rapidly cooling the product in the lower mold.

[0020] As a further description of the above technical solution:

[0021] A second connecting plate is fixedly connected to the outer wall of the connecting block, and the lower surface of the second connecting plate is fixedly connected to the inner wall of the water tank.

[0022] Through the above technical solution: the connecting plate 2 on the inner wall of the water tank can stably support the rotating bracket, so that the rotating bracket can rotate stably and prevent instability during lifting and lowering. At the same time, it can also serve as a load-bearing block for the rotating plate 1, so that the rotating plate 1 can rotate stably.

[0023] As a further description of the above technical solution:

[0024] The outer wall of the connecting plate 2 is rotatably connected to the rotating plate 1, the inner wall of the rotating plate 1 is rotatably connected to the rotating plate 2, and the inner wall of the rotating plate 2 is rotatably connected to the outer wall of the connecting plate 1.

[0025] Through the above technical solution: the rotating plate 1, which rotates stably on the outer wall of the connecting plate 2, can also rotate stably on the inner wall of the rotating plate 2 by means of the rotating shaft set therein. Under the action of the rotating plate 1 and the rotating plate 2, the connecting plate 1 can be raised and lowered stably, thereby enabling the lower mold to move stably.

[0026] This utility model has the following beneficial effects:

[0027] 1. In this utility model, the electric push rod drives the injection plate to move the sliding plate up to a certain height, and then slides the sliding plate out of the injection plate, thereby achieving the effect of cleaning the residue on the heating column. The heating column can heat the injection tank, and at the same time, the injection plate and the sliding plate can clean the injection port by moving down. This not only achieves the effect of easy cleaning, but also ensures that the temperature of the flowing channel is the same, thereby improving the yield.

[0028] 2. In this utility model, the starting motor drives the rotating rod to unfold the rotating bracket. The rotating bracket can push the connecting block to move the connecting plate one. At the same time, the rotating plate one and the rotating plate two rotate, thereby achieving the effect of stably driving the lower mold to lift and cool the product. Attached Figure Description

[0029] Figure 1 This is a perspective view of the flow channel structure of an injection mold proposed in this utility model;

[0030] Figure 2 This is a partial structural diagram of the slider in the flow channel structure of an injection mold proposed in this utility model;

[0031] Figure 3 This is a partial structural diagram of the fixing plate of the flow channel structure of an injection mold proposed in this utility model;

[0032] Figure 4 This is a partial structural diagram of the connecting block of the flow channel structure of an injection mold proposed in this utility model.

[0033] Legend:

[0034] 1. Support body; 11. Electric push rod; 12. Injection plate; 13. Slider; 14. Sliding plate; 15. Heating column; 16. Upper mold; 17. Cleaning column; 18. Limiting plate; 2. Bearing component; 21. Limiting column; 22. Lower mold; 23. Fixing plate; 24. Water tank; 3. Cooling component; 31. Fixing block; 32. Motor; 33. Rotating rod; 34. Rotating support; 35. Connecting block; 36. Connecting plate one; 37. Connecting plate two; 38. Rotating plate one; 39. Rotating plate two. Detailed Implementation

[0035] 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.

[0036] Reference Figure 1 and Figure 2 This utility model provides an embodiment of an injection mold flow channel structure, including a support body 1. An electric push rod 11 is fixedly connected to the inner top wall of the support body 1. An injection plate 12 is fixedly mounted at the output end of the electric push rod 11. A slider 13 is slidably connected to the inner wall of the injection plate 12. A sliding plate 14 is fixedly connected to the lower surface of the slider 13. The upper surface of the sliding plate 14 is slidably connected to the lower surface of the injection plate 12. A heating column 15 is fixedly connected to the lower surface of the sliding plate 14. The outer wall of the heating column 15 slides... The upper mold 16 is connected, the inner wall of the upper mold 16 is slidably connected to the outer wall of the sliding plate 14, the inner wall of the upper mold 16 is slidably connected to the outer wall of the injection plate 12, the upper surface of the upper mold 16 is fixedly connected to the lower surface of the bracket body 1, the inner wall of the upper mold 16 is fixedly connected to a cleaning column 17, the outer wall of the cleaning column 17 is slidably connected to the inner wall of the sliding plate 14, the outer wall of the cleaning column 17 is slidably connected to the inner wall of the injection plate 12, the upper surface of the upper mold 16 is fixedly connected to a limit plate 18, and the inner wall of the upper mold 16 is provided with a bearing component 2.

[0037] Specifically, during injection molding, the electric push rod 11 pushes the injection plate 12 and the sliding plate 14 to block the injection groove on the upper mold 16. The heating column 15 ensures that the injection material flows into the runner at the same temperature. When it is necessary to clean the residue on the injection port, the electric push rod 11 pushes the injection plate 12 and the sliding plate 14 to insert the heating column 15 and the cleaning column 17 into the injection port on the injection plate 12, the sliding plate 14 and the upper mold 16 respectively to clean the residue. When it is necessary to clean the residue on the heating column 15, the electric push rod 11 moves the injection plate 12 and the sliding plate 14 to a certain height, and then moves the sliding plate 14 to make the slider 13 slide out of the inner wall of the injection plate 12, thereby cleaning the residue on the outer wall of the heating column 15. The limiting plate 18 restricts the movement of the sliding plate 14, which not only facilitates cleaning but also ensures that the temperature is the same when flowing into the injection cavity, thus improving the yield.

[0038] Reference Figure 1 and Figure 3The supporting component 2 includes a limiting post 21, the outer wall of the limiting post 21 is slidably connected to the inner wall of the upper mold 16, and the outer wall of the limiting post 21 is fixedly connected to the lower mold 22; the outer wall of the lower mold 22 is fixedly connected to a fixing plate 23, a water tank 24 is provided on the lower side of the fixing plate 23, and a cooling component 3 is provided on the right side of the water tank 24.

[0039] Specifically, setting a limiting post 21 on the inner wall of the upper mold 16 can restrict the movement trajectory of the upper mold 16, and setting a fixing plate 23 on the outer wall of the lower mold 22 can achieve a stable cooling effect on the product inside the lower mold 22 through the water tank 24 connected to the cooling component 3.

[0040] Reference Figure 1 and Figure 4 The cooling assembly 3 includes a fixing block 31, with the left side of the fixing block 31 positioned on the right side of the water tank 24. A motor 32 is fixedly connected to the upper surface of the fixing block 31, and a rotating rod 33 is fixedly mounted at the output end of the motor 32. The outer wall of the rotating rod 33 is rotatably connected to the inner wall of the water tank 24. A rotating bracket 34 is fixedly connected to the outer wall of the rotating rod 33, and a connecting block 35 is rotatably connected to the outer wall of the rotating bracket 34. A first connecting plate 36 is fixedly connected to the outer wall of the connecting block 35, with the upper surface of the first connecting plate 36 fixedly connected to the lower surface of the fixing plate 23. A second connecting plate 37 is fixedly connected to the outer wall of the connecting block 35, with the lower surface of the second connecting plate 37 fixedly connected to the inner wall of the water tank 24. A first rotating plate 38 is rotatably connected to the outer wall of the second connecting plate 37, and a second rotating plate 39 is rotatably connected to the inner wall of the first rotating plate 38. The inner wall of the second rotating plate 39 is rotatably connected to the outer wall of the first connecting plate 36.

[0041] Specifically, the motor 32 fixed on the fixed block 31 is started to drive the rotating rod 33 to rotate. The rotating rod 33 drives the rotating bracket 34 to unfold, causing the connecting block 35 to move. While the connecting block 35 drives the connecting plate 1 36 to move, it will drive the rotating plate 2 39 to rotate. The connecting plate 2 37 can provide rotation support for the rotating plate 1 38, thereby achieving the effect of stably driving the lower mold 22 to rise and fall to cool the product.

[0042] Working Principle: During injection molding, the heating column 15 maintains a consistent temperature at the injection port, achieving temperature control during injection. When cleaning residue from the injection port is required, the electric push rod 11 on the support body 1 pushes the injection plate 12 to move, causing the sliding plate 14 to move synchronously. The movement of the sliding plate 14 drives the heating column 15, enabling the heating column 15 and cleaning column 17 to clean the injection port on the injection plate 12, sliding plate 14, and upper mold 16. When cleaning residue from the heating column 15 is required, the electric push rod 11 moves the injection plate 12 and sliding plate 14 to a certain height. Then, by moving the sliding plate 14 outwards, the slider 13 moves out of the inner wall of the injection plate 12, thereby allowing the heating column 15 to move out of the inner wall. 5. The limit post 21 is removed to ensure that the movement trajectory of the upper mold 16 is prevented from deviating. When the product needs to be cooled, the motor 32 fixed on the fixed block 31 is started to drive the rotating rod 33 to rotate. The rotation of the rotating rod 33 can drive the rotating bracket 34 to unfold, so that the connecting block 35 pushes the connecting plate 1 36 to move. At the same time as the connecting plate 1 36 moves, the rotating plate 1 38 and the rotating plate 2 39 can rotate, thereby achieving the effect of the fixed plate 23 driving the lower mold 22 to rise and fall stably into the water tank 24. This structure not only achieves the effect of easy cleaning, but also achieves the effect of the same temperature when flowing into the injection molding channel, thereby improving the yield. On the other hand, it can achieve the effect of stably driving the lower mold 22 to rise and fall to cool the product.

[0043] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A runner structure of an injection mold comprising a support body (1), characterized in that: An electric push rod (11) is fixedly connected to the inner top wall of the bracket body (1). An injection plate (12) is fixedly installed at the output end of the electric push rod (11). A slider (13) is slidably connected to the inner wall of the injection plate (12). A sliding plate (14) is fixedly connected to the lower surface of the slider (13). The upper surface of the sliding plate (14) is slidably connected to the lower surface of the injection plate (12). A heating column (15) is fixedly connected to the lower surface of the sliding plate (14). An upper mold (16) is slidably connected to the outer wall of the heating column (15). The inner wall of the upper mold (16) is slidably connected to the upper mold (16). The upper mold (16) is connected to the outer wall of the sliding plate (14), and the inner wall of the upper mold (16) is slidably connected to the outer wall of the injection plate (12). The upper surface of the upper mold (16) is fixedly connected to the lower surface of the bracket body (1). A cleaning column (17) is fixedly connected to the inner wall of the upper mold (16). The outer wall of the cleaning column (17) is slidably connected to the inner wall of the sliding plate (14). The outer wall of the cleaning column (17) is slidably connected to the inner wall of the injection plate (12). A limit plate (18) is fixedly connected to the upper surface of the upper mold (16). A bearing component (2) is provided on the inner wall of the upper mold (16).

2. The runner structure of an injection mold according to claim 1, characterized in that: The bearing component (2) includes a limiting post (21), the outer wall of which is slidably connected to the inner wall of the upper mold (16), and the outer wall of the limiting post (21) is fixedly connected to the lower mold (22).

3. The runner structure of an injection mold according to claim 2, characterized in that: A fixing plate (23) is fixedly connected to the outer wall of the lower mold (22). A water tank (24) is provided on the lower side of the fixing plate (23), and a cooling component (3) is provided on the right side of the water tank (24).

4. The runner structure of an injection mold according to claim 3, characterized in that: The cooling assembly (3) includes a fixing block (31), the left side of which is located on the right side of the water tank (24). A motor (32) is fixedly connected to the upper surface of the fixing block (31), and a rotating rod (33) is fixedly provided at the output end of the motor (32). The outer wall of the rotating rod (33) is rotatably connected to the inner wall of the water tank (24).

5. The runner structure of an injection mold according to claim 4, characterized in that: The outer wall of the rotating rod (33) is fixedly connected to a rotating bracket (34), and the outer wall of the rotating bracket (34) is rotatably connected to a connecting block (35).

6. The runner structure of an injection mold according to claim 5, characterized in that: The outer wall of the connecting block (35) is fixedly connected to a connecting plate (36), and the upper surface of the connecting plate (36) is fixedly connected to the lower surface of the fixing plate (23).

7. The runner structure of an injection mold according to claim 6, characterized in that: The outer wall of the connecting block (35) is fixedly connected to the connecting plate two (37), and the lower surface of the connecting plate two (37) is fixedly connected to the inner wall of the water tank (24).

8. The runner structure of an injection mold according to claim 7, characterized in that: The outer wall of the connecting plate 2 (37) is rotatably connected to the rotating plate 1 (38), the inner wall of the rotating plate 1 (38) is rotatably connected to the rotating plate 2 (39), and the inner wall of the rotating plate 2 (39) is rotatably connected to the outer wall of the connecting plate 1 (36).

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