In-mold gate hot cutting device

Abstract

The utility model relates to the field of water gap cutting, a mould ingate hot cutting device, the mould includes the upper die and lower die, including the upper die side wall fixed with controller and with the inductive switch of controller electric connection, the lower die side wall fixed with and inductive switch detection head contact cooperation's fixed block, the lower die top is fixed with a plurality of fixed bases, the fixed base inside slide connection has the ingate cutting knife, a plurality of drive devices for controlling the up-and-down movement of the ingate cutting knife are installed in the lower die.

Description

Technical Field

[0001] This utility model relates to the field of gate cutting, specifically a hot cutting device for the gate inside a mold. Background Technology

[0002] During injection molding, the product will produce sprues. Generally, after injection molding is completed, the molded product is removed from the mold, and then the sprues are removed separately. This requires manual intervention and is time-consuming and labor-intensive.

[0003] Therefore, it is necessary to provide a hot-cutting device for the in-mold gate to solve the above-mentioned technical problems. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a hot-cutting device for the inlet gate of a mold.

[0005] This utility model provides a hot-cutting device for the gate in a mold. The mold includes an upper mold and a lower mold. The upper mold has a controller and an inductive switch electrically connected to the controller fixed on its side wall. The lower mold has a fixed block fixed on its side wall that contacts and cooperates with the detection head of the inductive switch. The top of the lower mold has several fixed seats fixed. A gate cutter is slidably connected in the fixed seats. Several drive devices for controlling the up and down movement of the gate cutter are installed in the lower mold.

[0006] Preferably, the driving device includes a hydraulic cylinder fixed in the lower mold, a blade holder is mounted in contact with the piston rod end of the hydraulic cylinder, and the bottom end of the gate cutter is mounted in the blade holder. A return spring is installed between the fixed seat and the blade holder, and the hydraulic cylinder is electrically connected to a controller.

[0007] A gate cutter is designed on the lower side of the connection between the gate and the product. A sensor switch is designed on the mold parting surface and connected to the controller on the upper mold side wall. When the mold closing block contacts the sensor switch, the in-mold cutting starts timing. After the product injection and holding pressure are completed, the set time is reached. At this time, the controller injects oil into the in-mold cylinder, the in-mold cylinder starts working, and the gate cutter moves upward to cut the gate from the product. After the gate is cut off, the cylinder is depressurized, and the gate cutter resets under the action of the return spring. At this time, the product cooling continues. After the product has cooled down, the mold opens, the mold is ejected, and the robot fixture clamps the product and the gate respectively to perform the part removal operation.

[0008] Preferably, the tool holder is provided with a mounting groove, and the bottom end of the gate cutter is provided with an L-shaped part, which is installed in the mounting groove to facilitate the installation of the gate cutter.

[0009] Preferably, the side wall of the fixed base is provided with a sliding groove, and the gate cutter is slidably connected in the sliding groove, so that the gate cutter slides up and down relatively smoothly and is convenient to install the gate cutter.

[0010] Preferably, the top of the fixing base is provided with a receiving groove for accommodating the water inlet.

[0011] Compared with related technologies, the present invention provides the following beneficial effects:

[0012] 1. Automated control improves efficiency: Through the cooperation of the controller and the inductive switch, the in-mold cutting timer is automatically started after the mold is closed, and the hydraulic cylinder is automatically controlled to work when the preset time is reached, so that the gate cutter cuts the gate from the product. This automated process greatly improves production efficiency and reduces manual intervention.

[0013] 2. Precise cutting ensures quality: The design of the gate cutter makes the cutting of the gate and the product more precise, avoiding gate residue or product damage caused by manual cutting or mechanical inaccuracy, thus ensuring product quality.

[0014] 3. Reset spring design for easy operation: A reset spring is installed between the blade holder and the fixed base, so that the gate cutter can automatically reset after cutting the gate, which facilitates subsequent operations and part removal. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the hydraulic cylinder structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the lower mold structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the cylinder distribution of this utility model;

[0019] Figure 5 This is a schematic diagram showing the relative positions of the tool holder and the gate cutter of this utility model;

[0020] Figure 6 This is a schematic diagram of the tool holder structure of this utility model;

[0021] Figure 7 This is a schematic diagram of the gate cutter structure of this utility model.

[0022] The following are the labels in the diagram: 1. Upper mold; 2. Lower mold; 3. Controller; 4. Inductive switch; 5. Fixing block; 6. Fixing base; 7. Sprue cutter; 8. Drive device; 9. Hydraulic cylinder; 10. Piston rod; 11. Tool holder; 12. Return spring; 13. Slide groove; 14. Receiving groove; 15. Mounting groove; 16. L-shaped part. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] Please refer to 1- Figure 7 A hot-cutting device for in-mold gates is disclosed, the mold comprising an upper mold 1 and a lower mold 2. Specifically, a controller 3 is fixedly mounted on the side wall of the upper mold 1, and an inductive switch 4 electrically connected to the controller 3 is also installed thereon. A fixing block 5, which contacts and engages with the detection head of the inductive switch 4, is fixedly mounted on the side wall of the lower mold 2. Several fixing seats 6 are fixedly mounted on the top of the lower mold 2, and a gate cutter 7 is slidably connected within each fixing seat 6. Simultaneously, several drive devices 8 for controlling the up-and-down movement of the gate cutter 7 are also installed inside the lower mold 2.

[0025] Specifically, the drive unit 8 includes a hydraulic cylinder 9 fixed inside the lower mold 2. The piston rod 10 of the hydraulic cylinder 9 is mounted in contact with a cutter holder 11, and the bottom end of the gate cutter 7 is mounted inside the cutter holder 11. A return spring 12 is installed between the fixed base 6 and the cutter holder 11, and the hydraulic cylinder 9 is electrically connected to the controller 3.

[0026] A gate cutter 7 is designed on the lower side of the connection between the gate and the product. A sensor switch 4 is designed at the parting surface of the mold, and this switch 4 is connected to a controller 3 on the side wall of the upper mold 1. When the mold closes, the fixing block 5 contacts the sensor switch 4, at which point the in-mold cutting timer starts. After product injection and holding pressure are completed, when the preset time is reached, the controller 3 injects oil into the in-mold cylinder 9, causing the cylinder 9 to start working. At this time, the gate cutter 7 moves upward, cutting the gate from the product. After the gate is cut, the cylinder 9 depressurizes, and the gate cutter 7 resets under the action of the return spring 12. The product cooling process continues during this time. After the product has cooled completely, the mold opens, the mold ejects, and the robot gripper clamps the product and gate respectively for part removal.

[0027] Furthermore, the tool holder 11 is provided with a mounting groove 15, and the bottom end of the gate cutter 7 is provided with an L-shaped portion 16, which is installed in the mounting groove 15. This design facilitates the installation of the gate cutter 7. The side wall of the fixing base 6 is provided with a sliding groove 13, and the gate cutter 7 is slidably connected in the sliding groove 13. This design allows the gate cutter 7 to slide smoothly up and down, and also facilitates the installation of the gate cutter 7. In addition, the top of the fixing base 6 is provided with a receiving groove 14 for accommodating the sprue.

[0028] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A hot-cutting device for the in-mold gate, characterized in that, The mold includes an upper mold (1) and a lower mold (2). The upper mold (1) has a controller (3) fixed on its side wall and an inductive switch (4) electrically connected to the controller (3). The lower mold (2) has a fixing block (5) fixed on its side wall that contacts and cooperates with the detection head of the inductive switch (4). The lower mold (2) has several fixing seats (6) fixed on its top. A gate cutter (7) is slidably connected in the fixing seat (6). The lower mold (2) has several driving devices (8) installed inside to control the up and down movement of the gate cutter (7).

2. The hot-cutting device for the in-mold gate according to claim 1, characterized in that, The driving device (8) includes a hydraulic cylinder (9) fixed in the lower mold (2). The piston rod (10) of the hydraulic cylinder (9) is attached to a knife holder (11), and the bottom end of the gate cutter (7) is installed in the knife holder (11). A return spring (12) is installed between the fixed seat (6) and the knife holder (11). The hydraulic cylinder (9) is electrically connected to the controller (3).

3. The hot-cutting device for the in-mold gate according to claim 2, characterized in that, The tool holder (11) is provided with a mounting groove (15), and the bottom end of the gate cutter (7) is provided with an L-shaped part (16), and the L-shaped part (16) is installed in the mounting groove (15).

4. The hot-cutting device for the in-mold gate according to claim 1, characterized in that, The side wall of the fixed base (6) is provided with a groove (13), and the gate cutter (7) is slidably connected in the groove (13).

5. The hot-cutting device for the in-mold gate according to claim 1, characterized in that, The top of the fixed base (6) is provided with a receiving groove (14) for accommodating the water inlet.

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