Trimming system for injection molded parts

Abstract

The utility model discloses an injection molding part edge cutting system, including manipulator and edge cutting device, the edge cutting device includes the edge cutting base, is equipped with the edge cutting operation platform at the top of edge cutting base, the edge cutting operation platform can make up and down lift movement, the top's left and right sides of edge cutting base are fixedly connected with side edge support disc respectively, also cut the plate and slide connection on side edge support disc, the plate can slide and approach edge cutting operation platform or be away from edge cutting operation platform, the manipulator can send the workpiece of cutting edge to be sent to edge cutting operation platform, the utility model discloses utilize manipulator to send the workpiece of cutting edge, then utilize the up and down cross cooperation between edge cutting operation platform and a pair of cut plate to realize shearing and cutting edge, then utilize manipulator to tear edge, realize cutting edge procedure full automation flow operation, and the degree of automation is greatly promoted, thoroughly gets rid of the dependence on manual work, reduces error, and production efficiency improves obviously, ensures that cutting edge position is accurate, and the cutout is smooth, fundamentally reduces the occurrence risk of being scratched, extrusion and other safety accidents.

Description

Technical Field

[0001] This utility model relates to the technical field of blow molding processing equipment, specifically a trimming system for injection molded parts. Background Technology

[0002] Blow molding is a molding technology that produces hollow products, tubular films, or double-layer flat films from molten plastic. The core principle is to use gas pressure to expand the molten plastic and fit it into the mold cavity (or form a specific shape), and then obtain the desired product after cooling and solidification.

[0003] The blow molding process mainly includes an extrusion system, a die system, and a mold system. After the plastic granules are heated to a plastic state, they are extruded to form a continuous tubular "preform" (referred to as a preform). After the preform of a preset length is extruded, compressed air is introduced into the preform (called "blowing"). At the same time, the bottom of the preform needs to be clamped to form a seal, so that the preform expands laterally to a predetermined diameter to form a tubular film. Then, the two open molds are closed to give the product the final shape. After the plastic is completely shaped, the open molds are opened to remove the pre-formed product, and then the edges are trimmed.

[0004] Currently, the trimming and finishing processes for blow-molded products mostly rely on manual operation or semi-automated equipment. For manual operation, the primary challenge is inefficiency. Manual workers must position, cut, and trim each pre-formed product individually, resulting in long processing times per piece and hindering continuous, mass production, severely limiting the overall capacity of the blow molding production line. Secondly, processing accuracy is difficult to guarantee. Manual operation is susceptible to subjective factors such as operator skill level, physical condition, and emotional fluctuations, leading to issues like misaligned trimming, uneven edges after finishing, and poor dimensional consistency. This directly affects the product's appearance quality and subsequent assembly performance, especially for blow-molded products with high precision requirements, where manual trimming often fails to meet design standards. Furthermore, processes with high manual involvement also present challenges such as high labor intensity and safety risks. Long-term repetitive actions can easily lead to occupational diseases, and there are safety hazards such as cuts and injuries from crushing during interaction with equipment.

[0005] Now, a novel edge trimming system for injection molded parts is proposed to solve the above problems. Utility Model Content

[0006] This utility model aims to solve at least one of the technical problems existing in the prior art. To this end, this utility model proposes an injection molding part trimming system, and the technical solution adopted is as follows: A trimming system for injection molded parts includes a robotic arm and a trimming device disposed beside the robotic arm. The trimming device includes a trimming base, and a trimming operation platform is provided on the top of the trimming base. The trimming operation platform can move up and down. Side support plates are fixedly connected to the left and right sides of the top of the trimming base, and a cutting plate is slidably connected to the side support plates. The cutting plate can slide towards or away from the trimming operation platform. The robotic arm has a clamp that can deliver the workpiece to be trimmed onto the trimming operation platform.

[0007] As a further technical solution of this utility model, the edge-cutting operation platform is located inside the middle position of the top of the edge-cutting base, and the shape and size of the outer side of the edge-cutting operation platform are adapted to the shape and size of the inner side of the top of the edge-cutting base.

[0008] As a further technical solution of this utility model, the shape and size of the cutting plate are adapted to the shape and size of the cutting operation platform.

[0009] As a further technical solution of this utility model, two sets of first electric cylinders are installed at the bottom of the cutting operation platform. The first electric cylinders can drive the cutting operation platform to move up and down.

[0010] As a further technical solution of this utility model, first slide rails are fixedly connected to both sides inside the side support plate, a ball screw is movably connected to the middle position inside the side support plate, a servo motor is installed at the bottom of the side support plate, a cutting plate is provided above the side support plate, a slider with bearing is fixedly connected to the middle position of the bottom of the cutting plate, and first sliders are fixedly connected to both sides of the bottom of the cutting plate.

[0011] As a further technical solution of this utility model, the internal thread of the bearing slider matches the external thread of the ball screw, the ball screw passes through the interior of the bearing slider, the internal shape and size of the first slider are adapted to the external shape and size of the first slide rail, and the first slider can slide back and forth along the outside of the first slide rail.

[0012] Compared with existing technologies, the beneficial effects of this utility model are as follows: This utility model utilizes a robotic arm to grip and feed the workpiece to be trimmed, and then uses the staggered cooperation between the trimming operation platform and a pair of cutting plates to achieve shearing and trimming. The robotic arm then grips and tears the edge, realizing a fully automated assembly line operation for the trimming process. The degree of automation is greatly improved, completely eliminating reliance on manual labor. This not only reduces errors that may be caused by manual intervention, but also allows the equipment to operate continuously around the clock, significantly improving the automation level and continuous production capacity of the production line, and significantly increasing production efficiency. The staggered cooperation design between the pair of cutting plates and the trimming operation platform can form a stable and precise shearing force, ensuring accurate trimming position and a smooth cut. This effectively avoids problems such as irregular edges and inconsistent dimensions caused by uneven force and positioning deviations during manual trimming. Furthermore, it avoids direct contact between operators and the trimming equipment, fundamentally reducing the risk of accidents such as scratches and crushing. At the same time, it reduces high-intensity repetitive manual labor, lowers the labor intensity of operators, helps improve the working environment, and enhances the safety and humanization of production. Attached Figure Description

[0013] Figure 1 This is a front view structural diagram of the present utility model; Figure 2 This is a front view of the edge-cutting device in this utility model; Figure 3 This is a three-dimensional schematic diagram of the edge-cutting device in this utility model; Figure 4 This is a top view of the edge-cutting device in this utility model; Figure 5 This is a bottom view of the cutting plate of this utility model.

[0014] In the diagram: 1. Robotic arm; 2. Trimming base; 3. Trimming operation platform; 4. First electric cylinder; 5. Side support plate; 6. First slide rail; 7. Ball screw; 8. Servo motor; 9. Cutting plate; 10. First slider; 11. Slider with bearing. Detailed Implementation

[0015] 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.

[0016] This utility model provides a trimming system for injection molded parts, such as Figure 1 , 2As shown in Figures 3 and 4, the device includes a robotic arm 1 and a trimming device located beside the robotic arm 1. The trimming device includes a trimming base 2, and a trimming operation platform 3 is provided on the top of the trimming base 2. The trimming operation platform 3 can move up and down. Side support plates 5 are fixedly connected to the left and right sides of the top of the trimming base 2, and a cutting plate 9 is slidably connected to the side support plates 5. The cutting plate 9 can slide towards or away from the trimming operation platform 3. The robotic arm 1 has a clamp that can send the workpiece to be trimmed onto the trimming operation platform 3. After the trimming operation platform 3 and the cutting plate 9 cooperate to clamp the workpiece to be trimmed, the clamp will clamp and pull off the trimmed edge.

[0017] During operation, the robotic arm 1 grips the workpiece to be trimmed and places it flat on the trimming platform 3. The platform 3 then descends, and the two cutting plates 9 on the side support plates 5 slide out towards the platform 3. The inner edges of the cutting plates 9 are attached to the outer edge of the platform 3 and positioned above the outer edge of the workpiece. The platform 3 then rises, allowing the central platform and the two side cutting plates 9 to work together to cut the outer edge of the workpiece. Specifically, the outer edge of the workpiece is positioned on the outer periphery of the platform 3, thus cutting off the outer edge. The gripper of the robotic arm 1 then extends to clamp the cut outer edge and, around the periphery of the platform 3, tears and transports the cut edge material away from the cutting plates. This completes the trimming of the injection-molded part. This invention utilizes the robotic arm 1 to grip and transport the workpiece to be trimmed. The workpiece is edged, and then the edge-cutting process is achieved through the staggered cooperation between the edge-cutting operation platform 3 and a pair of cutting plates 9. The edge is then clamped and torn by the robotic arm 1, realizing a fully automated assembly line operation for the edge-cutting process. This significantly improves the level of automation, completely eliminating reliance on manual labor. This not only reduces errors that may be caused by human intervention but also allows the equipment to operate continuously around the clock, significantly improving the automation level and continuous production capacity of the production line, resulting in a significant increase in production efficiency. The staggered cooperation design between the pair of cutting plates 9 and the edge-cutting operation platform 3 can generate stable and precise shearing force, ensuring accurate edge-cutting position and a smooth cut. This effectively avoids problems such as irregular edges and inconsistent dimensions caused by uneven force and positioning deviations during manual edge cutting. Furthermore, it avoids direct contact between operators and the edge-cutting equipment, fundamentally reducing the risk of accidents such as scratches and crushing. At the same time, it reduces the high-intensity repetitive labor of manual workers, lowers the labor intensity of operators, helps improve the working environment, and enhances the safety and humanization of production.

[0018] In some embodiments of this utility model, such as Figure 2 , 3As shown in Figure 4, the trimming operation platform 3 is located inside the middle position of the top of the trimming base 2, and the external shape and size of the trimming operation platform 3 are adapted to the internal shape and size of the top of the trimming base 2.

[0019] In some embodiments of this utility model, such as Figure 2 , 3 As shown in Figure 4, the shape and size of the cutting plate 9 are adapted to the shape and size of the cutting operation platform. More precisely, the inner edge of the cutting plate 9 is adapted to the outer edge of the cutting operation platform 3 to achieve precise cutting and ensure accurate cutting position and smooth cut.

[0020] In some embodiments of this utility model, such as Figure 2 As shown, two sets of first electric cylinders 4 are installed at the bottom of the cutting operation platform 3. The first electric cylinders 4 can drive the cutting operation platform 3 to move up and down.

[0021] In some embodiments of this utility model, such as Figure 2 As shown, first slide rails 6 are fixedly connected to both sides inside the side support plate 5, ball screw 7 is movably connected to the middle position inside the side support plate 5, servo motor 8 is installed at the bottom inside the side support plate 5, cutting plate 9 is provided above the side support plate 5, a bearing slider 11 is fixedly connected to the middle position at the bottom of the cutting plate 9, and first sliders 10 are fixedly connected to both sides at the bottom of the cutting plate 9.

[0022] In some embodiments of this utility model, such as Figure 3 , 4 As shown in Figure 5, the internal thread of the bearing slider 11 matches the external thread of the ball screw 7, the ball screw 7 passes through the interior of the bearing slider 11, the internal shape and size of the first slider 10 are adapted to the external shape and size of the first slide rail, and the first slider 10 can slide back and forth along the outside of the first slide rail.

[0023] Specifically, the servo motor 8 drives the ball screw 7 to rotate continuously, driving the bearing slider 11 to move. The cutting plate 9 moves along the first slide rail 6 through the first slider 10 until it is at the outer edge of the cutting operation platform 3.

[0024] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A trimming system for injection molded parts, characterized in that, The device includes a robotic arm (1) and a trimming device located beside the robotic arm. The trimming device includes a trimming base (2) and a trimming operation platform (3) on the top of the trimming base (2). The trimming operation platform (3) can move up and down. Side support plates (5) are fixedly connected to the left and right sides of the top of the trimming base (2). A cutting plate (9) is slidably connected to the side support plate (5). The cutting plate (9) can slide towards or away from the trimming operation platform (3). The robotic arm (1) has a clamp that can clamp and send the workpiece to be trimmed onto the trimming operation platform (3).

2. The injection molding part trimming system according to claim 1, characterized in that, The cutting operation platform (3) is located inside the middle position of the top of the cutting base (2), and the shape and size of the outside of the cutting operation platform (3) are adapted to the shape and size of the inside of the top of the cutting base (2).

3. The injection molding part trimming system according to claim 1, characterized in that, The shape and size of the cutting plate (9) are compatible with the shape and size of the cutting operation platform (3).

4. The injection molding part trimming system according to claim 1, characterized in that, Two sets of first electric cylinders (4) are installed at the bottom of the cutting operation platform (3). The first electric cylinders (4) can drive the cutting operation platform (3) to move up and down.

5. The injection molding part trimming system according to claim 1, characterized in that, First slide rails (6) are fixedly connected to both sides inside the side support plate (5). A ball screw (7) is movably connected to the middle position inside the side support plate (5). A servo motor (8) is installed at the bottom inside the side support plate (5). A cutting plate (9) is set above the side support plate (5). A bearing slider (11) is fixedly connected to the middle position at the bottom of the cutting plate (9). First sliders (10) are fixedly connected to both sides at the bottom of the cutting plate (9).

6. The injection molding part trimming system according to claim 5, characterized in that: The internal threads of the bearing slider (11) match the external threads of the ball screw (7), the ball screw (7) passes through the interior of the bearing slider (11), the internal shape and size of the first slider (10) are adapted to the external shape and size of the first slide rail (6), and the first slider (10) can slide back and forth along the outside of the first slide rail (6).

Images