A refrigerator injection molded part edge trimming assembly

Abstract

This utility model discloses a trimming assembly for refrigerator injection molded parts, including a worktable. A support frame is fixedly connected to the top of the worktable, and an electric push rod is fixedly connected to the top of the support frame. A connecting frame is fixedly connected to the output end of the electric push rod. In actual use, the support frame provides an installation base for the electric push rod. The electric push rod pushes the connecting frame downwards, and a limiting rod slides within the support frame to guide and limit the connection frame. Simultaneously, a motor drives a bidirectional lead screw to rotate. Because the threads at both ends of the lead screw are opposite, the connecting plate moves in the opposite direction along the lead screw. The slider slides within the groove to ensure the smooth movement of the connecting plate. The connecting plate drives the cutter head to adjust its position and contact the refrigerator injection molded part for trimming. This assembly solves the problems of inconvenient cutter head position adjustment and unstable trimming in traditional devices, achieving precise cutter head positioning and smooth trimming, thus improving the trimming accuracy and processing efficiency of refrigerator injection molded parts.

Description

Technical Field

[0001] This utility model relates to the field of edge trimming technology for injection molded parts, specifically to an edge trimming assembly for refrigerator injection molded parts. Background Technology

[0002] A trimming assembly for refrigerator injection molded parts is a specialized tool used in refrigerator production to remove burrs from injection molded parts. It typically includes a fixture adapted to different injection molded parts, an adjustable trimming cutter, and may also feature a debris collection tank and a positioning structure. In use, the injection molded part is first fixed to the fixture, and the cutter follows a pre-set path close to the edges and corners to precisely remove excess burrs and flash remaining after molding. The debris falls into the collection tank. Suitable for batch processing in refrigerator workshops, it ensures smooth edges on injection molded parts, avoids the errors and inefficiencies of manual trimming, meets subsequent assembly precision requirements, and maintains a clean production environment. In existing technical solutions, the cutting head adjustment flexibility is insufficient. The cutting tools are mostly fixed or can only move in one direction. They cannot quickly adjust the angle and distance according to the corner position of injection molded parts of different specifications. This requires frequent disassembly and replacement of the cutting tool assembly, which increases operation time and reduces processing efficiency. In order to solve this technical problem, this utility model proposes a trimming assembly for refrigerator injection molded parts. Utility Model Content

[0003] (a) Technical problems to be solved In existing technical solutions, the cutting head adjustment flexibility is insufficient. The cutting tools are mostly fixed or can only move in one direction. They cannot quickly adjust the angle and distance according to the corner position of injection molded parts of different specifications. This requires frequent disassembly and replacement of the cutting tool assembly, which increases operation time and reduces processing efficiency. In order to solve this technical problem, this utility model proposes a trimming assembly for refrigerator injection molded parts.

[0004] (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: a refrigerator injection molding part trimming assembly, comprising a worktable, a support frame fixedly connected to the top of the worktable, an electric push rod fixedly connected to the top of the support frame, a connecting frame fixedly connected to the output end of the electric push rod, a motor fixedly connected to the outer wall of the connecting frame, a bidirectional lead screw fixedly connected to the output end of the motor, connecting plates threaded to both ends of the bidirectional lead screw, a cutting head fixedly connected to the bottom end of each connecting plate, and a refrigerator injection molding part disposed above the worktable.

[0005] Preferably, a base is fixedly connected to the top center of the workbench, a second motor is fixedly connected inside the base, a first bevel gear is fixedly connected to the output shaft of the second motor, and second bevel gears are meshed on both sides of the first bevel gear. An adjusting screw is fixedly connected inside each second bevel gear.

[0006] Preferably, a pair of fixing plates are fixedly connected to the top of the base, the adjusting screw is rotatably connected to the fixing plates, and an outer cylinder is threadedly connected to the outer side wall of the adjusting screw, and a rubber clamp is fixedly connected to the other end of the outer cylinder.

[0007] Preferably, a pair of sliding grooves are provided on both sides of the connecting frame, and sliders are fixedly connected to the outer walls of both sides of the connecting plate, and the sliders are slidably connected in the sliding grooves.

[0008] Preferably, a pair of limiting rods are fixedly connected to the top of the connecting frame, and the limiting rods are slidably connected inside the support frame.

[0009] Preferably, the outer cylinder has an inner groove, the other end of the adjusting screw is fixedly connected to a limiting ring, the limiting ring is slidably connected in the inner groove, and the refrigerator injection molded part is disposed outside the rubber gasket.

[0010] (III) Beneficial Effects This utility model provides a trimming assembly for refrigerator injection molded parts. It has the following beneficial effects: (1) The support frame provides the installation base for the electric push rod. The electric push rod pushes the connecting frame to move down. The limiting rod slides in the support frame to limit and guide the connecting frame. At the same time, the motor drives the bidirectional lead screw to rotate. Because the threads at both ends of the lead screw are opposite, the connecting plate moves in the opposite direction along the lead screw. The slider slides in the groove to ensure the smooth movement of the connecting plate. The connecting plate drives the cutter head to adjust its position and contact the refrigerator injection molded part for edge trimming. This combination solves the problems of inconvenient cutter head position adjustment and unstable edge trimming in traditional devices, realizes precise cutter head positioning and smooth edge trimming, and improves the edge trimming accuracy and processing efficiency of refrigerator injection molded parts.

[0011] (2) The base provides installation support for each component. Motor 2 drives bevel gear 1 to rotate. Bevel gear 1 meshes with the bevel gears on both sides to drive the adjusting screw to rotate in the fixed plate. When the adjusting screw rotates, the outer cylinder moves along the screw axis because it is threadedly connected to the screw and restricted by the limit ring and inner groove. This causes the rubber clamping pad to come closer and clamp the refrigerator injection molded part. This combination solves the problem of unstable clamping of refrigerator injection molded parts and easy damage to the surface of traditional devices. It achieves stable clamping and surface protection of injection molded parts, and ensures accurate subsequent edge trimming operations. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the overall side sectional structure of this utility model; Figure 3 This is a schematic diagram of the external structure of the base of this utility model.

[0013] In the diagram: 1. Workbench; 2. Support frame; 3. Electric push rod; 4. Connecting frame; 5. Motor 1; 6. Two-way lead screw; 7. Connecting plate; 8. Cutting head; 9. Slider; 10. Slide groove; 11. Limiting rod; 12. Base; 13. Motor 2; 14. Bevel gear 1; 15. Fixing plate; 16. Adjusting screw; 17. Outer cylinder; 18. Limiting ring; 19. Inner groove; 20. Rubber clamp; 21. Refrigerator injection molded part; 22. Bevel gear 2. Detailed Implementation

[0014] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0015] Please see Figure 1-3 This utility model provides a technical solution: Example 1: A trimming assembly for a refrigerator injection molded part includes a worktable 1, a support frame 2 fixedly connected to the top of the worktable 1, an electric push rod 3 fixedly connected to the top of the support frame 2, a connecting frame 4 fixedly connected to the output end of the electric push rod 3, a motor 5 fixedly connected to the outer wall of the connecting frame 4, a bidirectional lead screw 6 fixedly connected to the output end of the motor 5, connecting plates 7 threaded to both ends of the bidirectional lead screw 6, a cutter head 8 fixedly connected to the bottom end of each connecting plate 7, a refrigerator injection molded part 21 disposed above the worktable 1, a pair of sliding grooves 10 opened on both sides of the connecting frame 4, sliders 9 fixedly connected to the outer walls of both sides of the connecting plate 7, and the sliders 9 slidably connected within the sliding grooves 10, a pair of limiting rods 11 fixedly connected to the top of the connecting frame 4, and the limiting rods 11 slidably connected inside the support frame 2.

[0016] The electric push rod 3 at the top of the support frame 2 is activated, pushing the connecting frame 4 downwards. At this time, the limiting rod 11 at the top of the connecting frame 4 slides synchronously within the support frame 2, providing limiting guidance for the connecting frame 4 and ensuring its smooth downward movement. The motor 5 on the outer wall of the connecting frame 4 is activated, driving the bidirectional lead screw 6 at the output end to rotate. Since the threads at both ends of the bidirectional lead screw 6 are in opposite directions, it drives the connecting plates 7 at both ends to move in opposite directions along the axis of the bidirectional lead screw 6. The sliders 9 on both sides of the connecting plate 7 slide within the grooves 10 of the connecting frame 4, ensuring that the connecting plate 7 moves stably without deviation. When the connecting plate 7 moves, it drives the cutter head 8 at the bottom to adjust its position synchronously, so that the cutter head 8 is precisely aligned with the part of the refrigerator injection molded part 21 that needs to be trimmed. As the electric push rod 3 continues to push the connecting frame 4 downwards, the cutter head 8 contacts the refrigerator injection molded part 21, thereby completing the trimming operation and realizing the trimming processing of the refrigerator injection molded part 21.

[0017] Example 2: The difference between this example and Example 1 is that, in this example, a base 12 is fixedly connected to the top center of the workbench 1, a motor 13 is fixedly connected inside the base 12, a bevel gear 14 is fixedly connected to the output shaft of the motor 13, bevel gears 22 are meshed on both sides of the bevel gear 14, an adjusting screw 16 is fixedly connected inside each bevel gear 22, a pair of fixed plates 15 are fixedly connected to the top of the base 12, the adjusting screw 16 is rotatably connected to the fixed plate 15, and an outer cylinder 17 is threaded to the outer wall of the adjusting screw 16. A rubber pad 20 is fixedly connected to the other end of the outer cylinder 17, an inner groove 19 is opened inside the outer cylinder 17, a limit ring 18 is fixedly connected to the other end of the adjusting screw 16, the limit ring 18 is slidably connected to the inner groove 19, and the refrigerator injection molded part 21 is set outside the rubber pad 20.

[0018] Before performing edge trimming on the refrigerator injection molded part 21, it is placed on top of the base 12. Then, the motor 13 inside the base 12 is started. The motor 13 drives the bevel gear 14 on the output shaft to rotate. The bevel gear 14 meshes with the bevel gears 22 on both sides, thereby driving the bevel gears 22 on both sides to rotate synchronously. When the bevel gears 22 rotate, they will drive the adjusting screw 16 inside to rotate in the fixed plate 15. Since the outer cylinder 17 is connected to the adjusting screw 16 by threads, and the outer cylinder 17 is restricted in its rotation direction by means of the limiting ring 18 cooperating with the inner groove 19 of the adjusting screw 16, the outer cylinder 17 will move along the axial direction of the adjusting screw 16, driving the rubber clamp 20 at the end to move closer to the refrigerator injection molded part 21. Once the rubber clamp 20 on both sides clamps and fixes the refrigerator injection molded part 21, it can be stopped. The rubber clamp 20 can effectively prevent damage to the surface of the injection molded part.

[0019] Working principle: When performing edge trimming on the refrigerator injection molded part 21, the refrigerator injection molded part 21 is first placed on the base 12, and the motor 2 13 inside the base 12 is started. The motor 2 13 drives the bevel gear 14 on the output shaft to rotate. The bevel gear 14 meshes with the bevel gears 22 on both sides, thereby driving the bevel gears 22 on both sides to rotate. The bevel gear 22 drives the internal adjusting screw 16 to rotate within the fixed plate 15. When the adjusting screw 16 rotates, the outer cylinder 17 is threadedly connected to the adjusting screw 16, and the outer cylinder 17 is restricted from rotating by the limiting ring 18 cooperating with the inner groove 19 of the adjusting screw 16. The outer cylinder 17 will move along the axial direction of the adjusting screw 16, causing the rubber clamp 20 at the end to move closer to the refrigerator injection molded part 21 until the rubber clamp 20 on both sides clamps and fixes the refrigerator injection molded part 21. The rubber clamp 20 can avoid damaging the surface of the injection molded part. After fixing, the electric push rod 3 at the top of the support frame 2 is activated. The electric push rod 3 pushes the connecting frame 4 to move downward. The limiting rod 11 at the top of the connecting frame 4 slides within the support frame 2, which plays a limiting and guiding role on the connecting frame 4, so that the connecting frame 4 moves downward smoothly. Simultaneously, motor 5 on the outer wall of connecting frame 4 is activated. Motor 5 drives the bidirectional lead screw 6 at the output end to rotate. The threads at both ends of the bidirectional lead screw 6 are in opposite directions, causing the connecting plates 7 at both ends to move in opposite directions along the axis of the bidirectional lead screw 6. The sliders 9 on both sides of the connecting plate 7 slide within the grooves 10 of the connecting frame 4, ensuring smooth movement of the connecting plate 7. The connecting plate 7 drives the cutter head 8 at the bottom to move, adjusting the position of the cutter head 8 relative to the refrigerator injection molded part 21, so that the cutter head 8 is aligned with the area requiring edge trimming. As the electric push rod 3 continues to push the connecting frame 4 downward, the cutter head 8 contacts the refrigerator injection molded part 21 and performs edge trimming, thus achieving edge trimming processing of the refrigerator injection molded part 21.

[0020] All electrical components mentioned in this article are electrically connected to the controller and power supply. The control method of this utility model is controlled by the controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the art. Since this utility model is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail (motor model: 39BYG001; electric actuator model: XTL100-500-24).

[0021] It should be noted that in this paper, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

Claims

1. A trimming assembly for refrigerator injection molded parts, characterized in that: The device includes a workbench (1), a support frame (2) fixedly connected to the top of the workbench (1), an electric push rod (3) fixedly connected to the top of the support frame (2), a connecting frame (4) fixedly connected to the output end of the electric push rod (3), a motor (5) fixedly connected to the outer wall of the connecting frame (4), a two-way lead screw (6) fixedly connected to the output end of the motor (5), a connecting plate (7) threaded to both ends of the two-way lead screw (6), a cutter head (8) fixedly connected to the bottom end of each connecting plate (7), and a refrigerator injection molded part (21) provided above the workbench (1).

2. The refrigerator injection molding part edge trimming assembly according to claim 1, characterized in that: The workbench (1) is fixedly connected to a base (12) at the top center. A motor (13) is fixedly connected inside the base (12). A bevel gear (14) is fixedly connected to the output shaft of the motor (13). Bevel gears (22) are meshed on both sides of the bevel gears (14). An adjusting screw (16) is fixedly connected inside each bevel gear (22).

3. The refrigerator injection molding part edge trimming assembly according to claim 2, characterized in that: A pair of fixing plates (15) are fixedly connected to the top of the base (12). The adjusting screw (16) is rotatably connected inside the fixing plate (15). At the same time, an outer cylinder (17) is threadedly connected to the outer wall of the adjusting screw (16). A rubber pad (20) is fixedly connected to the other end of the outer cylinder (17).

4. The refrigerator injection molding part edge trimming assembly according to claim 3, characterized in that: The connecting frame (4) has a pair of sliding grooves (10) on both sides, and the connecting plate (7) has sliders (9) fixedly connected to the outer walls on both sides, and the sliders (9) are slidably connected in the sliding grooves (10).

5. A refrigerator injection molding part edge trimming assembly according to claim 4, characterized in that: A pair of limiting rods (11) are fixedly connected to the top of the connecting frame (4), and the limiting rods (11) are slidably connected inside the support frame (2).

6. A refrigerator injection molding part edge trimming assembly according to claim 5, characterized in that: The outer cylinder (17) has an inner groove (19) inside. The other end of the adjusting screw (16) is fixedly connected to a limiting ring (18). The limiting ring (18) is slidably connected in the inner groove (19), and the refrigerator injection molded part (21) is set outside the rubber pad (20).

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