An automatic gate-cutting injection mold

Abstract

This utility model provides an automatic gate trimming injection mold, including a top plate, an upper mold, a lower mold, an ejector plate, and a bottom plate. Cutting components are provided in the lower mold relative to the gate position. A power rod is also provided at the bottom of the cutting component. The power rod passes through the lower mold, the ejector plate, and the bottom plate. A pneumatic component is also provided at the bottom of the power rod for controlling the movement of the power rod. The pneumatic component drives the power rod to move and drives the cutting component to cut the gate, thereby achieving the purpose of automatic gate trimming.

Description

Technical Field

[0001] This utility model relates to molds, and more particularly to an automatic gate-cutting injection mold. Background Technology

[0002] like Figure 1 As shown, a plastic side panel includes a side panel body 90, and a plurality of connecting buckles 91 are provided at the bottom of the side panel body 90, wherein the connecting buckles 91 form an inverted buckle.

[0003] The aforementioned side plate body has a large volume. In order to ensure that the plastic is quickly and evenly filled into the mold and to reduce the risk of deformation and warping, multiple gates need to be set up to complete the feeding together. However, multi-gate feeding is more troublesome when trimming. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide an automatic gate trimming injection mold, which has the function of automatically trimming the gate.

[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is: an automatic gate-cutting injection mold, including a top plate, an upper mold, a lower mold, an ejector plate and a bottom plate. A cutting component is provided in the lower mold relative to the gate position. A power rod is also provided at the bottom of the cutting component. The power rod passes through the lower mold, the ejector plate and the bottom plate. A pneumatic component for controlling the movement of the power rod is also provided at the bottom of the power rod.

[0006] By using the above-mentioned technical means, the pneumatic component drives the power rod to move, and drives the cutting component to cut off the glue outlet, thereby achieving the purpose of automatically trimming the glue outlet.

[0007] Preferably, the pneumatic assembly includes a sealing block and an air pipe connector. The air pipe connector is located on the side of the sealing block. The base plate has several air holes located on the bottom surface of the power rod. The sealing block is located at the air holes. The base plate also has a groove in which an air passage pipe is installed. The air passage pipe is connected to the air pipe connector.

[0008] By using the above-mentioned technical means, by opening a groove and setting an air passage pipe in it, and connecting the air passage pipe to the air pipe connector, multiple rubber heads can be cut off at the same time, and the installation of the air passage pipe and the base plate will not interfere.

[0009] Preferably, a countersunk hole is also provided at the air hole, the sealing block is fixed to the countersunk hole by screws, and a sealing ring is also provided between the sealing block and the countersunk hole.

[0010] By using the above-mentioned technical means, and by setting a sealing ring, the sealing performance of the sealing block is increased, so that there will be no air leakage that would prevent the gate from being cut off.

[0011] Preferably, the cutting assembly includes a base, a sliding seat, and a cutter. The base is fixed inside the lower mold and forms a gate between it and the upper mold. The cutter is fixedly mounted on the sliding seat. A sliding groove is provided on the base. The sliding seat slides in the sliding groove. The power rod abuts against the bottom of the sliding seat.

[0012] By using the above-mentioned technical means, the sliding of the power rod causes the sliding seat to drive the cutter to move, thereby achieving the shearing of the glue outlet through air pressure.

[0013] Preferably, the base is further provided with an ejector hole, and an ejector rod is provided in the ejector hole. The ejector rod is fixed to the ejector plate and is used to eject the gate.

[0014] By using the above-mentioned technical means, the cut-off gate is ejected by a push rod, thereby preventing gate blockage.

[0015] Preferably, the upper mold is further provided with a core groove, a mold core is provided in the core groove, the mold core is fixed to the upper mold by screws, a positioning groove is provided on the side end of the core groove, and a positioning plate is provided in the positioning groove.

[0016] By using the above-mentioned technical means, and by setting a mold core, the upper mold and the mold core are processed separately, which increases the accuracy while reducing the production cost. The positioning plate increases the installation accuracy between the mold core and the upper mold.

[0017] Preferably, a core-pulling block is slidably provided on the side end of the lower mold. The core-pulling block is used to form a connecting buckle. An inclined rod is provided at the bottom of the upper mold. An inclined hole is provided at the tail of the core-pulling block. The inclined rod cooperates with the inclined hole and drives the core-pulling block to move.

[0018] By using the above-mentioned technical means, the connecting buckle is formed by setting a core-pulling block, and the purpose of automatic core pulling after mold opening is achieved by the cooperation of the inclined hole and the inclined rod. Attached Figure Description

[0019] Figure 1 This is a structural schematic diagram of the side panel body;

[0020] Figure 2 This is a schematic diagram of the structure of an embodiment;

[0021] Figure 3 This is a schematic diagram of the lower mold structure;

[0022] Figure 4 This is a schematic diagram of the upper mold structure;

[0023] Figure 5 This is a schematic diagram of the structure of the cut-off component;

[0024] Figure 6 This is a cross-sectional schematic diagram of an embodiment;

[0025] Figure 7 for Figure 6 Schematic diagram of Part A;

[0026] Figure 8 for Figure 6 Schematic diagram of Part B;

[0027] Figure 9 This is a schematic diagram of the base plate.

[0028] Reference numerals: 1. Top plate; 2. Upper mold; 3. Lower mold; 4. Ejector plate; 5. Base plate; 6. Cutting assembly; 7. Power rod; 8. Pneumatic assembly; 9. Sealing block; 10. Air pipe connector; 11. Air hole; 12. Groove; 13. Air passage pipe; 14. Countersunk hole; 15. Sealing ring; 16. Base; 17. Sliding seat; 18. Cutter; 19. Sliding groove; 20. Ejector hole one; 21. Ejector rod; 22. Core groove; 23. Mold core; 24. Positioning groove; 25. Positioning plate; 26. Core pulling block; 27. Angled rod; 28. Angled hole; 90. Side plate body; 91. Connecting buckle; 92. Gate. Detailed Implementation

[0029] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, so that the technical solution of this utility model can be more easily understood and mastered.

[0030] An automatic gate trimming injection mold includes a top plate 1, an upper mold 2, a lower mold 3, an ejector plate 4, and a bottom plate 5. Cutting components 6 are provided in the lower mold 3 at positions relative to the gate 92. A power rod 7 is also provided at the bottom of the cutting components 6, passing through the lower mold 3, the ejector plate 4, and the bottom plate 5. A pneumatic component 8 is also provided at the bottom of the power rod 7 to control its movement. The pneumatic component 8 drives the power rod 7 to move, which in turn drives the cutting components 6 to cut the gate, thereby achieving the purpose of automatic gate trimming.

[0031] The pneumatic assembly 8 includes a sealing block 9 and an air pipe connector 10. The air pipe connector 10 is located on the side of the sealing block 9, and one sealing block 9 can connect to one or more air pipe connectors 10. The base plate 5 has several air holes 11, the number of which matches the number of injection nozzles. The air holes 11 are located on the bottom surface of the power rod 7, and the sealing block 9 is located at the air holes 11. The base plate 5 also has a groove 12, within which an air passage pipe 13 is installed. The air passage pipe 13 is connected to the air pipe connector 10. When the base plate 5 is in contact with the injection molding machine... When fixed, the air passage 13 is not interfered with the injection molding machine by opening the insert. Compared with opening the air hole 11 in the base plate 5, the cost is lower. A countersunk hole 14 is also opened at the air hole 11. The sealing block 9 is fixed to the countersunk hole 14 by screws. A sealing ring 15 is also provided between the sealing block 9 and the countersunk hole 14. By setting the sealing ring 15, the sealing performance of the sealing block 9 is increased, so that when the gate 92 is cut off, there will be no air leakage from the air hole 11, which would lead to insufficient air pressure and failure to cut off the gate 92.

[0032] The cutting assembly 6 includes a base 16, a sliding seat 17, and a cutter 18. The base 16 is fixed inside the lower mold 3 and forms a gate 92 between it and the upper mold 2. The cutter 18 is fixedly mounted on the sliding seat 17. A sliding groove 19 is provided on the base 16, and the sliding seat 17 slides in the sliding groove 19. A power rod 7 abuts against the bottom of the sliding seat 17. The sliding of the power rod 7 causes the sliding seat 17 to drive the cutter 18 to move, thereby achieving the shearing of the gate by air pressure. An ejection hole 20 is also provided on the base 16. An ejector rod 21 is provided in the ejection hole 20. The ejector rod 21 is fixed to the ejector plate 4. The ejector rod 21 is used to eject the gate 92. The cut gate 92 is ejected by the ejector rod 21, thereby preventing the gate 92 from being blocked.

[0033] After injection molding is completed, the air passage 13 is vented, which increases the air pressure in each air hole 11 and pushes the power rod 7 upward. The top of the power rod 7 abuts against the sliding seat 17 and causes the cutter 18 to cut off the gate. After the mold is opened, the gate can be ejected by the ejector rod 21. When the cutter 18 needs to be reset, the air hole 11 can be made to have negative pressure.

[0034] The upper mold 2 is also provided with a core groove 22, and a mold core 23 is provided in the core groove 22. The mold core 23 is fixed to the upper mold 2 by screws. A positioning groove 24 is provided on the side end of the core groove 22, and a positioning plate 25 is provided in the positioning groove 24. By setting the mold core 23, the upper mold 2 and the mold core 23 are processed separately, which increases the accuracy and reduces the production cost. The positioning plate 25 increases the installation accuracy between the mold core 23 and the upper mold 2. During installation, the mold core 23 is first placed into the core groove 22, and then the positioning plate 25 is hammered into the positioning groove 24. If there is a deviation, the positioning plate 25 can be modified or replaced.

[0035] The lower mold 3 is also slidably provided with a core-pulling block 26, which is used to form the connecting buckle 91. The bottom of the upper mold 2 is also provided with a slanted rod 27, and the tail of the core-pulling block 26 is provided with a slanted hole 28. The slanted rod 27 cooperates with the slanted hole 28 and drives the core-pulling block 26 to move. By setting the core-pulling block 26, the forming of the connecting buckle 91 is completed. The purpose of automatic core pulling when the mold is opened is achieved by the cooperation of the slanted hole 28 and the slanted rod 27.

[0036] Of course, the above are just typical examples of this utility model. In addition, this utility model may have many other specific implementation methods. All technical solutions formed by equivalent substitution or equivalent transformation fall within the scope of protection claimed by this utility model.

Claims

1. An automatic gate-cutting injection mold, comprising a top plate (1), an upper mold (2), a lower mold (3), an ejector plate (4), and a bottom plate (5), characterized in that: A cutting assembly (6) is provided in the lower mold (3) at a position relative to the gate (92). A power rod (7) is also provided at the bottom of the cutting assembly (6). The power rod (7) passes through the lower mold (3), the ejector plate (4) and the bottom plate (5). A pneumatic assembly (8) for controlling the movement of the power rod (7) is also provided at the bottom of the power rod (7).

2. The automatic gate-cutting injection mold according to claim 1, characterized in that: The pneumatic assembly (8) includes a sealing block (9) and a pipe connector (10). The pipe connector (10) is located on the side of the sealing block (9). The base plate (5) has several air holes (11). The air holes (11) are located on the bottom surface of the power rod (7). The sealing block (9) is located at the air holes (11). The base plate (5) also has a groove (12). An air passage pipe (13) is provided in the groove (12). The air passage pipe (13) is connected to the pipe connector (10).

3. The automatic gate-cutting injection mold according to claim 2, characterized in that: A countersunk hole (14) is also provided at the air hole (11). The sealing block (9) is fixed to the countersunk hole (14) by screws. A sealing ring (15) is also provided between the sealing block (9) and the countersunk hole (14).

4. The automatic gate-cutting injection mold according to claim 1, characterized in that: The cutting assembly (6) includes a base (16), a sliding seat (17), and a cutter (18). The base (16) is fixed inside the lower mold (3) and forms a gate (92) between it and the upper mold (2). The cutter (18) is fixedly mounted on the sliding seat (17). A sliding groove (19) is provided on the base (16). The sliding seat (17) slides in the sliding groove (19). The power rod (7) abuts against the bottom of the sliding seat (17).

5. An automatic gate-cutting injection mold according to claim 4, characterized in that: The base (16) is also provided with an ejection hole (20), and an ejector rod (21) is provided in the ejection hole (20). The ejector rod (21) is fixed to the ejection plate (4) and is used to eject the gate (92).

6. An automatic gate-cutting injection mold according to claim 1, characterized in that: The upper mold (2) is also provided with a core groove (22), and a mold core (23) is provided in the core groove (22). The mold core (23) is fixed to the upper mold (2) by screws. A positioning groove (24) is provided on the side end of the core groove (22), and a positioning plate (25) is provided in the positioning groove (24).

7. An automatic gate-cutting injection mold according to claim 1, characterized in that: The lower mold (3) is also provided with a sliding core-pulling block (26) on its side end. The core-pulling block (26) is used to form a connecting buckle (91). The bottom of the upper mold (2) is also provided with a slanted rod (27). The tail of the core-pulling block (26) is provided with a slanted hole (28). The slanted rod (27) cooperates with the slanted hole (28) and drives the core-pulling block (26) to move.

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