Automatic water gap cutting and shaping device based on plastic shell

By designing an automatic sprue cutting and shaping device, efficient and precise cutting of sprues in plastic shells is achieved, solving the problems of low production efficiency and poor consistency in existing technologies, and adapting to the needs of plastic shells of different specifications.

CN223456411UActive Publication Date: 2025-10-21河源市宏松源科技有限公司
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Patent Information

Application Number
CN202422276881.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-18
Publication Date
2025-10-21
Estimated Expiration
2034-09-18

AI Technical Summary

Technical Problem

In the existing technology, the process of cutting the sprue of plastic shells relies on manual operation, which results in low production efficiency and difficulty in ensuring product consistency and accuracy. Furthermore, the existing automatic devices are not flexible enough to adapt to products of different sizes.

Method used

An automatic sprue cutting and shaping device was designed, comprising a base, a feeding robot, a workpiece positioning mechanism, a sprue cutting mechanism, a sprue receiving hopper, and a discharging robot. It employs components such as a pusher plate, a shaping block, a lifting assembly, and a heating plate to achieve automatic positioning, cutting, and waste collection of plastic shells, adapting to different specifications of plastic shells.

Benefits of technology

It improves the production efficiency and precision of sprue cutting for plastic shells, reduces manual operation, ensures product consistency, avoids waste spillage and pressure damage, and adapts to the needs of plastic shells of different sizes.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an automatic water gap cutting shaping device based on a plastic shell. The automatic water gap cutting shaping device comprises a machine base, a feeding mechanical arm, a workpiece positioning mechanism, a water gap cutting mechanism, a water gap receiving hopper and a discharging mechanical arm. The water gap cutting mechanism is used for cutting the water gap of the plastic shell on the workpiece positioning mechanism; each workpiece positioning mechanism comprises a material carrying plate, a pushing air cylinder, a material pushing plate and a limiting block, and the water gap receiving hopper is arranged on the machine base between the workpiece positioning mechanisms on the two sides. The material pushing plate on the workpiece positioning mechanism can push the plastic shell to move on the material carrying plate, so that the length of the exposed part of the water gap of the plastic shell is adjusted, and the requirement for cutting the water gap of the plastic shell with different specifications is met; a shaping pressing block on the water gap cutting mechanism can abut against the surface of the plastic shell along with movement of the lifting plate to conduct pressing and shaping, a sliding rod can slide in a linear bearing along with continuous movement of the lifting plate, and the situation that the shaping pressing block exerts too large pressure on the plastic shell, and consequently pressing damage is caused is avoided.
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Description

TECHNICAL FIELD

[0001] The utility model relates to water gap cutting device field especially relates to an automatic water gap cutting and shaping device based on plastic shell. BACKGROUND

[0002] In the forming process of plastic shell, the molten plastic fluid flows into the mold cavity through the mold gate, and the required plastic shell is formed after cooling. After the production of the plastic shell is completed, the part connecting the product and the gate, i.e. the water gap, is often left. These water gaps not only affect the appearance of the product, but also have adverse effects on subsequent assembly or use. Therefore, cutting off the water gap is a necessary process after the plastic shell is formed.

[0003] In the prior art, the traditional water gap cutting process generally relies on manual operation. Workers use scissors to cut or trim the water gap of the plastic shell. However, manual operation not only consumes time and effort, but also is subject to the operation level of workers, making it difficult to ensure the consistency and precision of the product, and easily causing product size deviation or surface damage, affecting the production quality of the product. In addition, the existing automatic water gap cutting device can only adapt to products of specific sizes. When the product needs to be replaced for water gap cutting, the corresponding product clamp needs to be replaced, which has low flexibility and affects the production efficiency of product water gap cutting.

[0004] Therefore, the prior art has defects and needs to be improved. INVENTION CONTENTS

[0005] The technical problem to be solved by the utility model is to provide an automatic water gap cutting and shaping device based on plastic shell with high flexibility and effectively improving production efficiency.

[0006] To achieve this purpose, the utility model adopts the following technical scheme: an automatic water gap cutting and shaping device based on plastic shell, comprising a machine base, a feeding manipulator, a workpiece positioning mechanism, a water gap cutting mechanism, a water gap receiving hopper and a discharging manipulator.

[0007] The machine base is provided with a support seat on each side, the workpiece positioning mechanism is arranged on the support seat, and the water gap cutting mechanism is arranged above the workpiece positioning mechanism. The water gap cutting mechanism is used for cutting the water gap of the plastic shell placed on the workpiece positioning mechanism.

[0008] The workpiece positioning mechanism comprises a loading plate, a push cylinder, a push plate and a limiting block. The loading plate is arranged in the middle of the support seat, and is used for placing the plastic shell. The push cylinder is arranged at the side end of the loading plate, and the movable end of the push cylinder is connected with the push plate. The push plate is used for pushing the plastic shell to move on the loading plate.

[0009] The carrier plate is provided with a sliding groove in the width direction, and two limiting blocks are respectively arranged on the two sides of the sliding groove, and the limiting blocks are used for limiting the lateral deviation of the plastic shell during movement.

[0010] The water gap receiving hopper is arranged on the base between the two workpiece positioning mechanisms, and is used for collecting the water gap waste cut from the plastic shell.

[0011] The water gap cutting mechanism includes a lifting assembly, a lifting plate, a shaping pressing block, a sliding rod and a water gap cutter.

[0012] The lifting assembly is arranged on the top of the support seat, the lifting assembly is connected with the lifting plate, the water gap cutter is arranged on the side wall of the lifting plate, and the water gap cutter is used for acting on the plastic shell with the lifting movement of the lifting plate.

[0013] The lifting plate is provided with a linear bearing, the sliding rod is sleeved in the linear bearing, the shaping pressing block is arranged at the bottom of the sliding rod, and the shaping pressing block is used for pressing on the surface of the plastic shell with the action of the lifting plate.

[0014] The workpiece positioning mechanism further includes a heating plate.

[0015] The heating plate is arranged on the carrier plate below the shaping pressing block, and the heating plate is used for heating the plastic shell.

[0016] The lifting assembly includes a first motor, a first screw rod, a first threaded seat and a first sliding rail.

[0017] The first motor is arranged on the top of the support seat, the output end of the first motor is arranged downward and connected with the first screw rod, the first threaded seat is sleeved on the first screw rod and connected with the lifting plate through a connecting frame, the first threaded seat is used for driving the lifting plate to move up and down with the rotation of the first screw rod, and the first sliding rail is arranged on the side wall of the support seat and connected with the side end of the lifting plate through a first sliding block.

[0018] The automatic water gap cutting and shaping device based on the plastic shell further includes a first linear module, the first linear module is arranged on the base, the movable end of the first linear module is connected with the support seat, and the position of the support seat on the base is adjusted.

[0019] The first linear module comprises a second motor, a second screw rod, a second threaded seat and a second sliding rail, the second sliding rail is arranged below the support seat, the support seat is movably connected with the second sliding rail through a second sliding block, the second motor is arranged on the machine base, the output end of the second motor is connected with the second screw rod, the second threaded seat is sleeved on the second screw rod, the second threaded seat is connected with the side end of the support seat, and the second threaded seat is used for pushing the support seat to move along the extension direction of the second sliding rail with the rotation of the second screw rod.

[0020] By adopting each technical scheme above, the automatic water gap cutting and shaping device based on a plastic shell comprises a second linear module, a lifting cylinder, a mounting frame and a plurality of suction nozzles.

[0021] The second linear module is connected with the machine base through a fixing seat, the movable end of the second linear module is connected with the lifting cylinder through a connecting arm, the movable end of the lifting cylinder is arranged downward and connected with the mounting frame, and a plurality of suction nozzles are arranged on the mounting frame, and the suction nozzles are used for adsorbing or releasing the plastic shell.

[0022] By adopting each technical scheme above, the automatic water gap cutting and shaping device based on a plastic shell comprises a second linear module, a lifting cylinder, a mounting frame and a plurality of suction nozzles.

[0023] Compared with the prior art, the automatic water gap cutting and shaping device based on a plastic shell has the following beneficial effects:

[0024] The pushing plate on the workpiece positioning mechanism can push the plastic shell to move on the loading plate, so that the moving distance of the plastic shell is pushed according to different sizes of the plastic shell, the length of the exposed part of the water gap of the plastic shell is adjusted, the requirement of cutting the water gap of the plastic shell of different specifications is met, the shaping pressing block on the water gap cutting mechanism can abut against the surface of the plastic shell to press and shape with the movement of the lifting plate, the displacement of the plastic shell during the cutting of the water gap is avoided, and the sliding rod can slide in the linear bearing with the continuous movement of the lifting plate, so that the pressure of the plastic shell caused by the shaping pressing block is avoided to cause the pressure damage; the water gap receiving hopper is arranged between the two workpiece positioning mechanisms, the cut water gap waste can be automatically collected, and the water gap waste is avoided from being scattered everywhere to affect the cleaning difficulty. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creating any creative labor.

[0026] The structure, proportion, size and the like shown in the drawings of the specification are only used to cooperate with the content disclosed in the specification, to be understood and read by those skilled in the art, and do not have technical substantive significance, and any modification of the structure, change of the proportion relationship or adjustment of the size, without affecting the effects and purposes that can be achieved by the present application, should still fall within the scope of the technical content disclosed by the present application.

[0027] Figure 1 It is a schematic view of the overall structure of the present application;

[0028] Figure 2 It is a schematic view of the workpiece positioning mechanism structure of the present application;

[0029] Figure 3 It is a schematic view of the water gap cutting mechanism structure of the present application;

[0030] Figure 4 It is a schematic view of the feeding mechanical hand structure of the present application. DETAILED DESCRIPTION

[0031] In order to make the utility model purposes, features, advantages of the present application more obvious and easy to understand, the technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the embodiments described below are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0032] In the description of the present application, it should be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the present application and simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the present application. It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component or there can be a component disposed therebetween.

[0033] The technical solutions of the present application will be further described below in conjunction with the drawings and through specific embodiments.

[0034] As Figures 1 to 4The utility model discloses an automatic water gap cutting and shaping device based on plastic shell, including frame 1, feeding manipulator 2, workpiece positioning mechanism 3, water gap cutting mechanism 4, water gap receiving hopper 5 and unloading manipulator 6, and the automatic water gap cutting and shaping device based on plastic shell has the advantages of automatic cutting, automatic shaping and the like.

[0035] Frame 1 both sides are equipped with support seat 10 respectively, workpiece positioning mechanism 3 is located support seat 10, water gap cutting mechanism 4 is located workpiece positioning mechanism 3 top, water gap cutting mechanism 4 is used to cut the water gap of plastic shell placed on workpiece positioning mechanism 3, and workpiece positioning mechanism 3 can position and place the plastic shell of water gap to be cut.

[0036] Specifically, workpiece positioning mechanism 3 includes loading plate 31, push cylinder 32, push plate 33 and limit block 34, loading plate 31 is located in the middle of support seat 10, loading plate 31 is used to place plastic shell, push cylinder 32 is located in the side end of loading plate 31, and the movable end of push cylinder 32 is connected with push plate 33, push plate 33 is used to push plastic shell to move on loading plate 31, so setting can push plastic shell to move according to different sizes of plastic shell, thereby adjusting the length of plastic shell water gap exposed part, satisfy the requirement of water gap cutting to different specifications plastic shell.

[0037] Loading plate 31 is equipped with chute 310 along the width direction, two limit blocks 34 are located on both sides of chute 310 respectively, and limit block 34 is used to limit plastic shell to deviate laterally when moving, thereby improving the cutting accuracy of water gap, it should be noted that the user can adjust the position of limit block 34 in chute 310, and then change the distance between two limit blocks 34, to realize the positioning requirement of different width plastic shell.

[0038] Water gap receiving hopper 5 is located on the frame 1 between two workpiece positioning mechanisms 3, to collect the water gap waste cut from plastic shell, and feeding manipulator 2 and unloading manipulator 6 are located on the frame 1 on both sides of workpiece positioning mechanism 3. By setting water gap receiving hopper 5 between two workpiece positioning mechanisms 3, the cut water gap waste can be automatically collected, to avoid the influence of water gap waste scattered everywhere on the cleaning difficulty, feeding manipulator 2 can automatically grab and place the plastic shell to be processed on workpiece positioning mechanism 3, to reduce the workload of manual feeding and improve production efficiency, and unloading manipulator 6 can take away the plastic shell with water gap cutting from workpiece positioning mechanism 3 and send it to the next process.

[0039] As Figure 2 And Figure 3As shown, further, the water gap cutting mechanism 4 includes a lifting assembly 41, a lifting plate 42, a shaping pressure block 43, a slide rod 44 and a water gap cutter 45, the lifting assembly 41 is arranged on the top of the support base 10, the lifting assembly 41 is connected with the lifting plate 42, the water gap cutter 45 is arranged on the side wall of the lifting plate 42, the water gap cutter 45 is used for acting on the plastic shell with the lifting and moving of the lifting plate 42, a linear bearing 46 is arranged on the lifting plate 42, the slide rod 44 is sleeved in the linear bearing 46, the shaping pressure block 43 is arranged on the bottom of the slide rod 44, the shaping pressure block 43 is used for abutting against the surface of the plastic shell with the action of the lifting plate 42.

[0040] When the feeding manipulator 2 places the plastic shell on the workpiece positioning mechanism 3 and completes positioning, the lifting assembly 41 can drive the lifting plate 42 to descend, so that the shaping pressure block 43 abuts against the surface of the plastic shell, thereby pressing and shaping the plastic shell, and avoiding displacement of the plastic shell during water gap cutting. With the continuous descent of the lifting plate 42, the slide rod 44 can slide in the linear bearing 46, avoiding excessive pressure of the shaping pressure block 43 on the plastic shell causing pressure damage; and the water gap cutter 45 can cut off the water gap part on the plastic shell with the descent of the lifting plate 42

[0041] As shown in Figure 2 , further, the workpiece positioning mechanism 3 further includes a heating plate 35, the heating plate 35 is arranged on the load plate 31 below the shaping pressure block 43, the heating plate 35 is used for heating the plastic shell, so that the connection part of the water gap and the plastic shell becomes more flexible, thereby reducing product damage caused by material brittleness in cutting off the water gap.

[0042] As shown in Figure 2 and Figure 3 , further, the lifting assembly 41 includes a first motor 411, a first lead screw 412, a first threaded seat 413 and a first slide rail 414, the first motor 411 is arranged on the top of the support base 10, the output end of the first motor 411 is arranged downward and connected with the first lead screw 412, the first threaded seat 413 is sleeved on the first lead screw 412 and connected with the lifting plate 42 through a connecting frame, the first threaded seat 413 is used for driving the lifting plate 42 to move up and down with the rotation of the first lead screw 412, the first slide rail 414 is arranged on the side wall of the support base 10, the first slide rail 414 is connected with the side end of the lifting plate 42 through a first sliding block. When the first motor 411 rotates, it can drive the first lead screw 412 to rotate, and then drive the first threaded seat 413 to move along the length direction of the first lead screw 412, thereby realizing the lifting adjustment of the lifting plate 42. The arrangement of the first slide rail 414 can improve the moving stability of the lifting plate 42.

[0043] As Figure 3 shown, further, it also includes a first linear module 7, the first linear module 7 is arranged on the base 1, and the movable end is connected with the support seat 10, to adjust the position of the support seat 10 on the base 1, the first linear module 7 includes a second motor 71, a second screw rod 72, a second threaded seat 73 and a second sliding rail 74, the second sliding rail 74 is arranged below the support seat 10, and the support seat 10 is movably connected with the second sliding rail 74 through a second sliding block, the second motor 71 is arranged on the base 1, the output end of the second motor 71 is connected with the second screw rod 72, the second threaded seat 73 is sleeved on the second screw rod 72, and the second threaded seat 73 is connected with the side end of the support seat 10, the second threaded seat 73 is used to push the support seat 10 to move along the extension direction of the second sliding rail 74 with the rotation of the second screw rod 72, so that the distance between the two support seats 10 is adjusted, and the equipment can adapt to different specifications of the plastic shell.

[0044] As Figure 1 and Figure 4 shown, further, the feeding manipulator 2 includes a second linear module 21, a lifting cylinder 22, a mounting frame 23 and a plurality of suction nozzles 24, the second linear module 21 is connected with the base 1 through a fixing seat, the movable end of the second linear module 21 is connected with the lifting cylinder 22 through a connecting arm, the movable end of the lifting cylinder 22 is arranged downward and connected with the mounting frame 23, a plurality of suction nozzles 24 are arranged on the mounting frame 23 respectively, the suction nozzles 24 are used for adsorbing or releasing the plastic shell, the second linear module 21 can adjust the distance between the suction nozzles 24 and the workpiece positioning mechanism 3, and the lifting cylinder 22 can adjust the height between the suction nozzles 24 and the workpiece positioning mechanism 3, so that the feeding manipulator 2 can realize automatic feeding and adsorption of the plastic shell.

[0045] As Figure 1 shown, further, the discharging manipulator 6 is the same as the feeding manipulator 2 in structure.

[0046] The above-described embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced equivalently; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A plastic shell based automatic sprue trimming and shaping device, characterized in that, The machine base, the feeding manipulator, the workpiece positioning mechanism, the water gap cutting mechanism, the water gap receiving hopper and the discharging manipulator are included. The machine base is provided with support seats on both sides, the workpiece positioning mechanism is arranged on the support seat, and the water gap cutting mechanism is arranged above the workpiece positioning mechanism. The workpiece positioning mechanism includes a loading plate, a pushing cylinder, a pushing plate and a limiting block. The loading plate is arranged in the middle of the support seat and is used for placing the plastic shell. The pushing cylinder is arranged at the side end of the loading plate, and the movable end of the pushing cylinder is connected with the pushing plate.

2. The automatic sprue trimming and shaping device based on a plastic shell according to claim 1, characterized in that, The pushing plate is used for pushing the plastic shell to move on the loading plate. The loading plate is provided with a sliding groove along the width direction, and two limiting blocks are arranged on both sides of the sliding groove. The limiting block is used for limiting the lateral deviation of the plastic shell during movement.

3. The automatic sprue trimming and shaping device based on a plastic shell according to claim 2, characterized in that, The water gap receiving hopper is arranged on the machine base between the workpiece positioning mechanisms on both sides to collect the water gap waste cut from the plastic shell. The water gap cutting mechanism includes a lifting assembly, a lifting plate, a shaping pressing block, a sliding rod and a water gap cutter.

4. The automatic sprue trimming and shaping device based on a plastic shell according to claim 2, characterized in that, The lifting assembly is arranged on the top of the support seat and is connected with the lifting plate. The water gap cutter is arranged on the side wall of the lifting plate and is used for acting on the plastic shell with the lifting movement of the lifting plate.

5. The automatic sprue trimming and shaping device based on a plastic shell according to claim 1, characterized in that, The lifting plate is provided with a linear bearing, the sliding rod is sleeved in the linear bearing, and the shaping pressing block is arranged at the bottom of the sliding rod. The shaping pressing block is used for pressing on the surface of the plastic shell with the action of the lifting plate. The workpiece positioning mechanism further includes a heating plate. The heating plate is arranged on the loading plate below the shaping pressing block and is used for heating the plastic shell. The lifting assembly includes a first motor, a first lead screw, a first threaded seat and a first sliding rail. The first motor is arranged on the top of the support seat, the output end of the first motor is arranged downward and is connected with the first lead screw. The first threaded seat is sleeved on the first lead screw and is connected with the lifting plate through a connecting frame. The first threaded seat is used for driving the lifting plate to move up and down with the rotation of the first lead screw. The first sliding rail is arranged on the side wall of the support seat and is connected with the side end of the lifting plate through a first sliding block. A first linear module is further included. The first linear module is arranged on the machine base, the movable end of the first linear module is connected with the support seat, and the position of the support seat on the machine base is adjusted. The first linear module comprises a second motor, a second screw rod, a second threaded seat and a second sliding rail, the second sliding rail is arranged below the support seat, the support seat is movably connected with the second sliding rail through a second sliding block, the second motor is arranged on the machine base, an output end of the second motor is connected with the second screw rod, the second threaded seat is sleeved on the second screw rod, the second threaded seat is connected with a side end of the support seat, and the second threaded seat is used for driving the support seat to move along an extension direction of the second sliding rail with the rotation of the second screw rod.

6. The automatic sprue trimming and shaping device based on a plastic shell according to claim 1, characterized in that, The feeding manipulator comprises a second linear module, a lifting cylinder, a mounting frame and a plurality of suction nozzles. The second linear module is connected with the machine base through a fixing seat, a movable end of the second linear module is connected with the lifting cylinder through a connecting arm, a movable end of the lifting cylinder is arranged downward and connected with the mounting frame, and the plurality of suction nozzles are arranged on the mounting frame respectively, and the suction nozzles are used for adsorbing or releasing the plastic shell.

7. The automatic sprue trimming and shaping device based on a plastic shell according to claim 1, characterized in that, The discharging manipulator has the same structure as the feeding manipulator.