A device for trimming flash from an injection molded part

Abstract

The utility model provides a kind of burr cutting device of injection molding, it includes support frame, and the V-shaped plate for carrying positioning injection molding is obliquely installed on support frame, and the support frame at the lower end of V-shaped plate is detachably installed with baffle, the processing gap is formed between the both sides of V-shaped plate to expose injection molding burr, and the support frame below V-shaped plate processing gap is equipped with the linear lead screw consistent with the oblique angle of V-shaped plate, linear lead screw is equipped with guide rail and moving frame, and moving frame is installed with cutting knife.The utility model aims at solving the problem of high labor intensity of manual operation, unstable cutting quality.

Description

Technical Field

[0001] This utility model relates to the field of injection molding processing technology, specifically to a burr removal device for injection molded parts. Background Technology

[0002] With the rapid development of injection molding technology, injection molded parts are widely used. However, in the injection molding process, due to mold wear, insufficient clamping force, or fluctuations in injection parameters, burrs (also known as flash or overflow) are inevitably generated at the parting surface of the injection molded parts. These burrs not only affect the appearance and dimensional accuracy of the product, but may also lead to assembly interference or sealing failure. Therefore, burr removal is a key post-injection processing step.

[0003] Currently, the removal of rough edges mostly relies on manual operation. Manual operation is not only labor-intensive, but the quality of the removal is also unstable due to the fatigue of the operator. Utility Model Content

[0004] The present invention aims to provide a burr removal device for injection molded parts to solve the problems of high labor intensity and unstable removal quality caused by manual operation.

[0005] To solve the above technical problems, the specific solution adopted by this utility model is as follows: a burr removal device for injection molded parts, including a support frame, on which a V-shaped plate for supporting and positioning the injection molded part is installed at an incline. A baffle that restricts the displacement of the injection molded part along the incline direction of the V-shaped plate is detachably installed at the support frame at the lower end of the V-shaped plate. A processing seam is formed between the two side plates of the V-shaped plate to expose the burrs of the injection molded part. A linear screw with the same incline angle as the V-shaped plate is provided on the support frame below the processing seam of the V-shaped plate. A guide rail and a movable frame are provided on the linear screw. A cutter is installed on the movable frame. The linear screw drives the movable frame to move back and forth along the guide rail, thereby driving the cutter to remove the burrs exposed at the processing seam.

[0006] As a further optimization of the burr removal device for injection molded parts of this utility model: a cylinder is provided on the support frame above the V-shaped plate, and the piston rod of the cylinder is fixedly connected to a pressure plate parallel to the V-shaped plate. The cylinder drives the pressure plate to move toward the V-shaped plate to press and fix the injection molded part on the V-shaped plate.

[0007] As a further optimization of the burr removal device for injection molded parts according to this utility model, the pressure plate and the baffle are both provided with a rubber buffer layer on the contact surface with the injection molded part.

[0008] As a further optimization of the burr removal device for injection molded parts of this utility model: a pressure sensor is embedded between the pressure plate body and the rubber buffer layer of the pressure plate.

[0009] As a further optimization of the burr removal device for injection molded parts of this utility model: the V-shaped plate includes a first side plate and a second side plate. The first side plate is fixed on the support frame, and one side of the second side plate is hinged to the support frame to realize the rotation of the second side plate to adjust the opening angle of the V-shaped plate. The baffle is engaged with the support frame through a slot. The end of the second side plate near the baffle is provided with a pin hole. The baffle is provided with multiple positioning holes corresponding to the rotation trajectory of the pin hole. The position of the second side plate is locked by inserting a pin into the pin hole and the selected positioning hole.

[0010] As a further optimization of the burr removal device for injection molded parts of this utility model: the support frame below the V-shaped plate is provided with partitions around it to prevent the burrs and debris of the injection molded parts from flying away. A chip collection groove is installed obliquely on the support frame below the linear screw. The end of the chip collection groove is provided with a pipe that passes through the partition. The pipe extends to the outside of the support frame and is connected to a vacuum cleaner. The vacuum cleaner is used to suck the burrs and debris of the injection molded parts in the chip collection groove into the storage box through the pipe.

[0011] As a further optimization of the burr removal device for injection molded parts of this utility model: the cutter includes a blade holder and a blade fixed on the blade holder by a detachable connector.

[0012] As a further optimization of the burr removal device for injection molded parts of this utility model: the cutter and the moving frame are connected by a universal ball joint, and the universal ball joint is provided with a fixing bolt for locking the angle of the cutter.

[0013] Beneficial effects: This utility model positions the injection molded part through the cooperation of an inclined V-shaped plate and a baffle, and exposes the burrs by utilizing the processing seam formed between the two sides of the V-shaped plate. Combined with a cutter driven by a linear cylinder to move along a guide rail, the burrs on the injection molded part are mechanically removed. This effectively solves the problems of high labor intensity and unstable removal quality associated with manual operation.

[0014] The preferred technical solution of this utility model significantly improves the reliability of injection molded part fixing and the applicability to injection molded parts of different specifications by using a cylinder to drive the pressure plate to move toward the V-shaped plate and press and fix the injection molded part on the V-shaped plate, as well as the design of adjustable V-shaped plate angle.

[0015] The preferred technical solution of this utility model, which connects the cutter and the movable frame with a replaceable blade via a universal ball joint, enhances cutting flexibility and maintenance convenience; at the same time, the chip collection groove design ensures a clean and safe working environment. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the burr removal device for injection molded parts according to this utility model;

[0017] Figure 2 This is a diagram of the internal structure of the partition of this utility model;

[0018] Figure 3This is a schematic diagram of the connection structure between the cutter and the movable frame of this utility model;

[0019] Figure 4 This is a cross-sectional view of the pressure plate of this utility model;

[0020] The markings in the diagram are: 1. Support frame, 2. Cylinder, 3. Pressure plate, 4. Rubber buffer layer, 5. V-shaped plate, 501. First side plate, 502. Second side plate, 6. Pin hole, 7. Pin shaft, 8. Positioning hole, 9. Baffle, 10. Slot, 11. Chip collection groove, 12. Partition, 13. Fixing bolt, 14. Pipeline, 15. Linear lead screw, 16. Moving frame, 17. Cutter, 18. Blade, 19. Tool holder, 20. Universal ball joint, 21. Pressure sensor, 22. Guide rail. Detailed Implementation

[0021] like Figure 1 As shown, a burr removal device for injection molded parts includes a support frame 1, which provides a stable working platform for burr removal of injection molded parts.

[0022] A V-shaped plate 5 is installed at an angle on the support frame 1. A baffle 9 is detachably installed on the support frame 1 at the lower end of the V-shaped plate 5. The V-shaped plate 5 uses its unique V-shaped structure to support and position the injection molded part. The baffle 9 restricts the displacement of the injection molded part along the inclined direction of the V-shaped plate 5. After the burr removal operation is completed on the injection molded part located on the V-shaped plate 5, the baffle 9 is removed, and the injection molded part is transferred by its own weight.

[0023] A processing seam is formed between the two side plates of the V-shaped plate 5 to expose the burrs of the injection molded part. After the injection molded part falls into the V-shaped plate 5, the two sides of the injection molded part are attached to the two side plates of the V-shaped plate 5, and the burrs between the two sides of the injection molded part protrude from the processing seam.

[0024] like Figure 2 As shown, a linear screw 15 with the same inclination angle as the V-shaped plate 5 is provided on the support frame 1 below the processing seam of the V-shaped plate 5. The linear screw 15 is provided with a guide rail 22 and a movable frame 16. A cutter 17 is installed on the movable frame 16, which provides a moving support platform for the cutter 17. The linear screw 15 drives the movable frame 16 to move back and forth along the guide rail 22, thereby driving the cutter 17 to remove the exposed burrs at the processing seam of the V-shaped plate 5.

[0025] The V-shaped plate 5 includes a first side plate 501 and a second side plate 502. The first side plate 501 is fixed to the support frame 1. One side of the second side plate 502 is hinged to the support frame 1 to allow the second side plate 502 to rotate and adjust the opening angle of the V-shaped plate 5. Adjusting the opening angle of the V-shaped plate 5 helps the device adapt to injection molded parts of different specifications. The baffle 9 is engaged with the support frame 1 through the slot 10. The end of the second side plate 502 near the baffle 9 is provided with a pin hole 6. The baffle 9 is provided with multiple positioning holes 8 corresponding to the rotation trajectory of the pin hole 6. The position of the second side plate 502 is locked by inserting the pin shaft 7 into the pin hole 6 and the selected positioning hole 8. The cooperation of the pin shaft 7, the pin hole 6 and the positioning hole 8 improves the working stability of the second side plate 502 and avoids the displacement of the second side plate 502 caused by the vibration caused by the cutter 17 during the operation, which would affect the burr removal effect of the injection molded parts.

[0026] Two cylinders 2 are provided on the support frame 1 above the V-shaped plate 5. The piston rods of the two cylinders 2 are fixedly connected to the pressure plate 3 parallel to the V-shaped plate 5. The two cylinders 2 drive the pressure plate 3 together to avoid uneven force on both ends of the pressure plate 3 caused by a single cylinder 2 and the high cost of multiple cylinders 2. The two cylinders 2 drive the pressure plate 3 to move toward the V-shaped plate 5 to press and fix the injection molded part on the V-shaped plate 5.

[0027] In the actual production line, the inlet of the V-plate 5 is connected to a feeding mechanism for transferring the injection molded parts to be processed onto the V-plate 5, and a packaging mechanism for storing the injection molded parts after the burrs have been removed is provided below the outlet of the V-plate 5.

[0028] like Figure 4 As shown, the pressure plate 3 and the baffle 9 are both provided with rubber buffer layers 4 on their contact surfaces with the injection molded parts. The rubber buffer layers 4 play a role in protecting the injection molded parts. A pressure sensor 21 is embedded between the pressure plate 3 body and the rubber buffer layer 4 of the pressure plate 3. The pressure sensor 21 can clearly and intuitively indicate the pressure on the injection molded parts, thus avoiding damage to the injection molded parts due to excessive pressure.

[0029] The support frame 1 below the V-shaped plate 5 is surrounded by baffles 12 to prevent the scattering of burrs and debris from the injection molded parts. A chip collection trough 11 is installed at an angle on the support frame 1 below the linear lead screw 15. A pipe 14, penetrating the baffles 12, is located at the end of the chip collection trough 11. The pipe 14 extends to the outside of the support frame 1 and connects to a vacuum cleaner. The vacuum cleaner is used to suck the burrs and debris from the injection molded parts in the chip collection trough 11 through the pipe 14 to a storage box outside the support frame 1. The chip collection trough 11 is tilted in the opposite direction to the V-shaped plate 5, preventing the vacuum cleaner from being positioned in the path of the processed injection molded parts falling into the sealing mechanism. The synergistic effect of the chip collection trough 11 and the vacuum cleaner solves the problem of collecting and cleaning cutting debris, improving the cleanliness of the working environment and the safety of the equipment.

[0030] like Figure 3As shown, the cutter 17 includes a blade holder 19 and a blade 18 fixed to the blade holder 19 by a detachable connector. The detachable connector includes bolt connection, snap-fit ​​connection and magnetic connection. In this embodiment, the blade 18 is connected to the blade holder 19 by bolts. The detachable connector enables quick replacement of the blade 18, which can adapt to different cutting needs and reduce the later maintenance cost.

[0031] The cutter 17 is connected to the movable frame 16 via a universal ball joint 20. The universal ball joint 20 is equipped with a fixing bolt 13 to lock the angle of the cutter 17. The universal ball joint 20 enables multi-angle adjustment of the cutter 17, ensuring that the blade 18 accurately contacts the burr. By tightening the fixing bolt 13 to compress the ball joint joint, the cutter 17 becomes a rigid whole during the cutting operation.

[0032] The method of using the burr removal device for injection molded parts of this utility model is as follows: First, rotate the second side plate 502, insert the pin 7 through the positioning hole 8 of the baffle 9 into the pin hole 6 to lock the position of the second side plate 502, so that the opening angle of the V-shaped plate 5 is adapted to the injection molded part; Second, adjust the angle of the cutter 17 through the universal ball joint 20 and lock it with the fixing bolt 13. If the blade 18 needs to be replaced, it can be replaced through the detachable connector; Next, transfer the injection molded parts to be processed in batches onto the V-shaped plate 5, and fix the injection molded parts to be processed by the cooperation of the baffle 9 and the pressure plate 3; Subsequently, the linear screw 15 drives the moving frame 16 to move the cutter 17 along the guide rail 22 to remove the burrs of the injection molded parts; After the removal is completed, the linear screw 15 drives the cutter 17 to reset, the cylinder 2 drives the pressure plate 3 to reset, and the baffle 9 is removed so that the injection molded parts automatically fall into the storage box; Finally, the debris generated by the removal falls into the debris collection trough 11 and is sucked into the collection box by the vacuum cleaner to complete the cleaning work.

Claims

1. A burr removal device for injection molded parts, characterized in that: The system includes a support frame (1), on which a V-shaped plate (5) for supporting and positioning injection molded parts is installed at an angle. A baffle (9) is detachably installed at the support frame (1) at the lower end of the V-shaped plate (5) to restrict the displacement of the injection molded parts along the tilt direction of the V-shaped plate (5). A processing seam is formed between the two side plates of the V-shaped plate (5) to expose the burrs of the injection molded parts. A linear screw (15) with the same tilt angle as the V-shaped plate (5) is provided on the support frame (1) below the processing seam of the V-shaped plate (5). A guide rail (22) and a moving frame (16) are provided on the linear screw (15). A cutter (17) is installed on the moving frame (16). The linear screw (15) drives the moving frame (16) to move back and forth along the guide rail (22), thereby driving the cutter (17) to cut off the burrs exposed at the processing seam.

2. The burr removal device for injection molded parts according to claim 1, characterized in that: A cylinder (2) is provided on the support frame (1) above the V-shaped plate (5). The piston rod of the cylinder (2) is fixedly connected to the pressure plate (3) parallel to the V-shaped plate (5). The cylinder (2) drives the pressure plate (3) to move toward the V-shaped plate (5) to press and fix the injection molded part on the V-shaped plate (5).

3. The burr removal device for injection molded parts according to claim 2, characterized in that: The pressure plate (3) and the baffle (9) are both provided with a rubber buffer layer (4) on the contact surface with the injection molded part.

4. The burr removal device for injection molded parts according to claim 3, characterized in that: A pressure sensor (21) is embedded between the body of the pressure plate (3) and the rubber buffer layer (4) of the pressure plate (3).

5. The burr removal device for injection molded parts according to claim 1, characterized in that: The V-shaped plate (5) includes a first side plate (501) and a second side plate (502). The first side plate (501) is fixed on the support frame (1). One side of the second side plate (502) is hinged to the support frame (1) to realize the rotation of the second side plate (502) to adjust the opening angle of the V-shaped plate (5). The baffle (9) is engaged with the support frame (1) through the slot (10). The end of the second side plate (502) near the baffle (9) is provided with a pin hole (6). The baffle (9) is provided with multiple positioning holes (8) corresponding to the rotation trajectory of the pin hole (6). The position of the second side plate (502) is locked by inserting the pin shaft (7) into the pin hole (6) and the selected positioning hole (8).

6. The burr removal device for injection molded parts according to claim 1, characterized in that: The support frame (1) below the V-shaped plate (5) is surrounded by partitions (12) to prevent the burrs and debris of the injection molded parts from scattering. A chip collection groove (11) is installed obliquely on the support frame (1) below the linear screw (15). A pipe (14) that passes through the partition (12) is provided at the end of the chip collection groove (11). The pipe (14) extends to the outside of the support frame (1) and is connected to a vacuum cleaner. The vacuum cleaner is used to suck the burrs and debris of the injection molded parts in the chip collection groove (11) into the storage box through the pipe (14).

7. The burr removal device for injection molded parts according to claim 1, characterized in that: The cutter (17) includes a blade holder (19) and a blade (18) fixed to the blade holder (19) by a detachable connector.

8. The burr removal device for injection molded parts according to claim 1, characterized in that: The cutter (17) is connected to the movable frame (16) via a universal ball joint (20), which is provided with a fixing bolt (13) to lock the angle of the cutter (17).

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