Clamping device for plastic product processing

By designing the adjustable spacing component and the clamping component, the problem of low position adjustment efficiency in existing plastic product processing clamping devices is solved, enabling rapid adaptation to clamping of plastic pipes of different diameters, improving processing efficiency and simplifying operation steps.

CN223834358UActive Publication Date: 2026-01-27DALIAN HAISHENG XINDA TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202520293749.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-24
Publication Date
2026-01-27
Estimated Expiration
2035-02-24

AI Technical Summary

Technical Problem

Existing plastic product processing clamping devices are inefficient when adjusting the clamping position, making it difficult to quickly adapt to plastic tubes of different diameters, increasing operation steps and time, and reducing spraying efficiency.

Method used

It adopts an adjustable spacing assembly and a clamping assembly, and adjusts the spacing of the movable plates by means of a lead screw and ball nut. Combined with a hydraulic cylinder and hydraulic rod, it can achieve quick clamping, simplify the operation steps, and adapt to plastic tubes of different diameters.

Benefits of technology

It improves the efficiency of plastic tube clamping and processing, simplifies the operation steps, and reduces the workload of staff.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a clamping device for plastic product processing, and relates to the technical field of plastic product processing. The distance adjusting device comprises a base plate, a distance adjusting assembly is arranged on the upper surface of the base plate, the distance adjusting assembly comprises a lead screw arranged above the base plate, a motor connected with the end of the lead screw is connected to the upper surface of the base plate, lug blocks are arranged on the circumferential side wall of ball nuts symmetrically arranged on the circumferential side wall of the lead screw, and the lug blocks are arranged on the circumferential side wall of the ball nuts. A movable plate is fixedly connected to the upper surface of the lug block, and the lower surface of the lug block makes contact with the upper surface of the base plate. A clamping assembly is arranged on the movable plate. The distance adjusting assembly is arranged, the positions of the two movable plates are adjusted at the same time, the adjusting stroke of the movable plates is shortened, the clamping efficiency of a plastic pipe is improved, the clamping assembly is arranged, the two ends of the plastic pipe are conveniently inserted into the periphery of the clamping assembly, the operation steps are simplified, and the hydraulic cylinder is controlled, so that the clamping efficiency is improved. And the plastic pipes with different diameters can be clamped.
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Description

Technical Field

[0001] This utility model belongs to the field of plastic product processing technology, and in particular relates to a clamping device for processing plastic products. Background Technology

[0002] Plastic products include all products made from plastic raw materials through processes such as injection molding and thermoforming. There are many types of plastic products, such as plastic bottles, plastic boxes, plastic bags, and plastic tubes. After injection molding, plastic tubes need to be coated on their surface according to actual needs. To increase the stability of the plastic tubes during the coating process, a clamping device is needed to clamp and lock the plastic tubes.

[0003] A search revealed a clamping device for processing plastic products, disclosed in patent publication number CN221245696U. This device relates to the field of plastic product technology and includes a horizontally arranged table. A first fixing frame is vertically fixed to the upper surface of the table, and a second fixing frame is vertically fixed to the upper surface of the table via a sliding mechanism. A rotating shaft is horizontally fixed through the upper part of both the first and second fixing frames. The rotating shaft is connected to a power mechanism via a transmission mechanism. Mounting discs, fixedly connected to corresponding rotating shafts on the same side, are vertically arranged on the opposite surfaces of the first and second fixing frames. A fixing shaft is horizontally fixed to the middle part of the opposite surfaces of the two mounting discs. Multiple equally spaced arc-shaped blocks are slidably mounted on the outer wall of each mounting disc. This device provides stable clamping of plastic tubes, enhancing safety and functionality.

[0004] However, it still has the following drawbacks in practical use:

[0005] 1. The above-mentioned clamping device for processing plastic products includes an L-shaped mounting bracket fixed to the lower end face of the mounting table, and an electric push rod horizontally fixed to the upper end face of the mounting bracket. The electric push rod can directly drive the second fixed bracket to move, thereby controlling the distance between the two mounting plates and realizing the clamping and fixing of the plastic tube. However, it can only adjust the position of the second fixed bracket, which will increase the travel of the second fixed bracket, increase the adjustment time of the second fixed bracket, reduce the clamping efficiency of the plastic tube, and reduce the efficiency of plastic product spraying.

[0006] 2. In the above-mentioned clamping device for processing plastic products, the upper parts of the first fixed frame and the second fixed frame are respectively horizontally fixed with rotating shafts. The rotating shafts are connected to a power mechanism through a transmission mechanism. The opposite surfaces of the first fixed frame and the second fixed frame are respectively vertically arranged with mounting plates fixedly connected to the corresponding rotating shafts on the same side. The middle parts of the opposite surfaces of the two mounting plates are respectively horizontally fixed with fixed shafts. Multiple arc-shaped blocks with equal intervals are slidably installed on the outer wall of the mounting plate. The arc-shaped blocks are fixedly connected to the corresponding fixed shafts on the same side through telescopic rods. The outer wall of the telescopic rods is movably sleeved with springs. The connection and fixation between the arc-shaped blocks and the fixed shafts are achieved by the cooperation of the springs and the telescopic rods, so that the arc-shaped blocks can move along the surface of the mounting plate. The springs squeeze the arc-shaped blocks so that the arc-shaped blocks can press and fix the plastic tubes from the inside, making the fixing effect more secure and convenient. However, when clamping plastic tubes with smaller diameters, pressure needs to be applied to the arc-shaped blocks to fit the two ends of the plastic tubes onto the outer periphery of the clamping assembly, which increases the operation steps and the workload of the workers.

[0007] To address these issues, we provide a clamping device for processing plastic products. Utility Model Content

[0008] The purpose of this utility model is to provide a clamping device for processing plastic products. By setting an adjustable distance component, the moving distance of the movable plate is effectively shortened, which is conducive to speeding up the clamping efficiency of plastic tubes and the processing efficiency of plastic tubes. In addition, by setting a clamping component, it is convenient to directly put both ends of the plastic tubes onto the outer periphery of the clamping component, simplifying the operation steps of clamping plastic tubes, reducing the workload of workers, and solving the technical problems mentioned in the background art of the above-mentioned clamping device for processing plastic products.

[0009] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0010] This utility model relates to a clamping device for processing plastic products, comprising a base plate, an adjusting assembly on the upper surface of the base plate, the adjusting assembly including a lead screw disposed above the base plate, a motor connected to the end of the lead screw and connected to the upper surface of the base plate, lugs disposed on the peripheral sidewalls of ball nuts symmetrically arranged on the peripheral sidewalls of the lead screw, a movable plate fixedly attached to the upper surface of the lugs, and the lower surface of the lugs contacting the upper surface of the base plate; a clamping assembly is disposed on the movable plate, the clamping assembly including a clamping mechanism... A hydraulic cylinder is mounted on one side wall of the movable plate, and a mounting plate is mounted on the other side wall of the movable plate. The end of the hydraulic rod connected to the end of the hydraulic cylinder passes through the side walls of the movable plate and the mounting plate in sequence. A clamping block is mounted on the side wall of the mounting plate away from the movable plate. A connecting rod is mounted on the lower surface of the clamping block. The end of the connecting rod away from the clamping block is mounted on the peripheral side wall of the hydraulic rod. A guide block is fixedly connected to the side wall of the clamping block near the mounting plate. A guide groove is formed on the side wall of the mounting plate away from the movable plate, and the guide block is slidably connected inside the guide groove.

[0011] The present invention is further configured such that the slide grooves symmetrically opened on the upper surface of the substrate are in the shape of a T, and the sliders symmetrically fixed on the lower surface of the movable plate are in the shape of a T, and the sliders are slidably connected inside the slide grooves.

[0012] The present invention is further configured such that a support is symmetrically rotatably connected to the peripheral sidewall of the lead screw, and the lower surface of the support is connected to the upper surface of the substrate.

[0013] The present invention is further configured such that the mounting bracket connected to the end of the hydraulic cylinder away from the hydraulic rod is U-shaped, and the mounting bracket is locked to the side wall of the movable plate by screws.

[0014] The present invention is further configured such that protruding rods are fixedly connected in a ring array on the side wall of the mounting plate near the movable plate, the end of the protruding rod away from the mounting plate penetrates the side wall of the movable plate, and a locking nut threaded on the peripheral side wall of the protruding rod contacts the side wall of the movable plate.

[0015] The present invention is further configured such that one end of the connecting rod is hinged to the lower surface of the abutment block via a hinge, the other end of the connecting rod is hinged to the peripheral wall of the hydraulic rod via a hinge, and an anti-slip pad is provided on the upper surface of the abutment block.

[0016] The present invention is further configured such that the clamping blocks are arranged in a ring array, the guide blocks are T-shaped, the guide grooves are T-shaped, and the guide grooves are arranged in a ring array.

[0017] The present invention is further configured such that a mounting assembly is provided on the outer side wall of the substrate, the mounting assembly includes a mounting plate sleeved on the outer side wall of the substrate, and countersunk screw holes are provided in a rectangular array on the upper surface of the mounting plate, and countersunk bolts are threaded into the internal threads of the countersunk screw holes.

[0018] This utility model has the following beneficial effects:

[0019] 1. This utility model, by setting an adjustable distance component, starts the motor, the lead screw rotates, and the two ball nuts move in opposite directions or back to back, so that the distance between the two movable plates gradually decreases or gradually increases, clamping plastic tubes of different lengths, and effectively shortening the moving stroke of the movable plates, which helps to reduce the clamping time of plastic tubes, speeds up the clamping efficiency of plastic tubes, and speeds up the processing efficiency of plastic tubes.

[0020] 2. This utility model, by setting up a clamping component, allows workers to align both ends of a plastic tube with the clamping component, operate the distance adjustment component to ensure that both ends of the plastic tube are fitted onto the outer periphery of the clamping component, activate the hydraulic cylinder, extend the hydraulic rod, and gradually increase the distance between the clamping blocks to clamp larger diameter plastic tubes; when the hydraulic rod retracts, the distance between the clamping blocks gradually decreases to clamp smaller diameter plastic tubes, reducing the number of operation steps and the amount of work required by the workers.

[0021] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0023] Figure 1 This is a three-dimensional schematic diagram of a clamping device used in the processing of plastic products;

[0024] Figure 2 for Figure 1 Enlarged schematic diagram of the structure at point A in the middle;

[0025] Figure 3 for Figure 1 Enlarged schematic diagram of the structure at point B;

[0026] Figure 4 This is an exploded view of the movable panel and the mounting tray;

[0027] Figure 5 This is a schematic diagram showing the connection between the mounting plate, hydraulic rod, clamping block, and connecting rod.

[0028] The attached diagram lists the components represented by each number as follows:

[0029] 1-Base plate, 101-Slide groove, 2-Adjustable distance assembly, 201-Motor, 202-Lead screw, 202a-Support, 203-Moving plate, 203a-Slider, 204-Ear block, 204a-Ball nut, 3-Clamping assembly, 301-Hosting frame, 301a-Screw, 302-Hydraulic cylinder, 302a-Hydraulic rod, 303-Hosting plate, 303a-Protruding rod, 303b-Locking nut, 303c-Guide groove, 304-Clamping block, 304a-Anti-slip pad, 304b-Guide block, 305-Connecting rod, 305a-Hinge, 4-Hosting assembly, 401-Hosting plate, 401a-Counterhead screw hole, 402-Counterhead bolt. Detailed Implementation

[0030] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0031] Example 1

[0032] Please see Figure 1 and Figure 2 This utility model is a clamping device for processing plastic products, including a base plate 1. An adjusting component 2 is provided on the upper surface of the base plate 1. The adjusting component 2 includes a motor 201, a lead screw 202, a support 202a, a movable plate 203, a slider 203a, an ear block 204, and a ball nut 204a. By controlling the motor 201, the positions of the two movable plates 203 are adjusted at the same time, which shortens the travel of the movable plates 203, which helps to reduce the clamping time of the plastic tube, speeds up the clamping efficiency of the plastic tube, and speeds up the processing efficiency of the plastic products.

[0033] Specifically, a groove 101 is provided on the upper surface of the substrate 1, a support 202a is rotatably connected to the peripheral wall of the lead screw 202, the support 202a is connected to the upper surface of the substrate 1, and a motor 201 connected to the end of the lead screw 202 is connected to the upper surface of the substrate 1. A ball nut 204a is provided on the peripheral wall of the lead screw 202, an ear block 204 is provided on the outer peripheral wall of the ball nut 204a, and the lower surface of the ear block 204 contacts the lower surface of the substrate 1. A movable plate 203 is fixedly connected to the upper surface of the ear block 204, and a slider 203a is fixedly connected to the lower surface of the movable plate 203. The slider 203a is slidably connected inside the groove 101.

[0034] Furthermore, the two slides 101 are symmetrically opened and are T-shaped, the two ball nuts 204a are symmetrically arranged, the two movable plates 203 are symmetrically arranged, and the two sliders 203a are symmetrically arranged on the lower surface of the movable plate 203 and are T-shaped.

[0035] The operation process of this embodiment is as follows: The operator starts the motor 201, the lead screw 202 rotates, when the two ball nuts 204a move towards each other, the slider 203a moves inside the slide groove 101, the two lugs 204 move towards each other, and the two movable plates 203 move towards each other, that is, the distance between the two movable plates 203 gradually decreases, and the plastic products with smaller length dimensions are clamped; when the two ball nuts 204a move away from each other, the distance between the two movable plates 203 gradually increases, and the plastic products with larger length dimensions are clamped, or the clamped plastic products are released.

[0036] Example 2

[0037] Please see Figure 1 , Figure 3 , Figure 4 and Figure 5 Based on the first specific embodiment, a clamping assembly 3 is provided. The clamping assembly 3 includes a mounting frame 301, a screw 301a, a hydraulic cylinder 302, a hydraulic rod 302a, a mounting plate 303, a protruding rod 303a, a locking nut 303b, a clamping block 304, an anti-slip pad 304a, a guide block 304b, and a connecting rod 305. This allows for the direct placement of plastic tubes of different diameters onto the outer periphery of the clamping assembly 3. It also allows for the adjustment of the position of the clamping block 304 by controlling the hydraulic cylinder 302, thus facilitating the clamping of plastic tubes of different diameters.

[0038] Specifically, the mounting frame 301 is connected to one side wall of the movable plate 203. A screw 301a is threaded onto the side wall of the mounting frame 301, and a hydraulic cylinder 302 is connected to the inner side wall of the mounting frame 301. A hydraulic rod 302a is connected to the end of the hydraulic cylinder 302. The mounting plate 303 is mounted on the other side wall of the movable plate 203, and a protruding rod 303a is fixed to the side wall of the mounting plate 303 near the movable plate 203. The protruding rod 303a penetrates the movable plate 203, and a locking nut 303b is threaded onto the peripheral side wall of the protruding rod 303a. The locking nut 303b contacts the side wall of the movable plate 203. The end of the hydraulic rod 302a... The part passes through the movable plate 203 and the mounting plate 303 in sequence. A clamping block 304 is provided on the side wall of the mounting plate 303 away from the movable plate 203. A guide block 304b is fixedly connected to the side wall of the clamping block 304 near the mounting plate 303. A guide groove 303c is opened on the side wall of the mounting plate 303 near the clamping block 304. The guide block 304b is slidably connected inside the guide groove 303c. A connecting rod 305 is hinged to the lower surface of the clamping block 304 through a hinge 305a. The end of the connecting rod 305 away from the clamping block 304 is hinged to the peripheral side wall of the hydraulic rod 302a through a hinge 305a. An anti-slip pad 304a is provided on the upper surface of the clamping block 304.

[0039] Furthermore, the mounting frame 301 is U-shaped, and three protruding rods 303a are arranged in a circular array on the side wall of the mounting plate 303. Three abutting blocks 304 are arranged in a circular array, the guide block 304b is T-shaped, and the guide groove 303c is T-shaped.

[0040] The operation process of this embodiment is as follows: After the operator operates the distance adjustment component 2 to initially position the plastic tube, the hydraulic cylinder 302 is started, the hydraulic rod 302a extends, the two ends of the connecting rod 305 move through the hinge 305a, and the guide block 304b moves along the guide groove 303c. The distance between the three clamping blocks 304 gradually increases until the anti-slip pads 304a on the three clamping blocks 304 contact the inner wall of the plastic tube, thereby clamping the plastic tube. The spraying equipment is then operated to spray the plastic tube. When the hydraulic rod 302a retracts, the clamping of the plastic tube is released, and the plastic tube is unloaded.

[0041] Example 3

[0042] Please see Figure 1 Based on specific embodiment one and specific embodiment two, a mounting component 4 is provided. The mounting component 4 includes a mounting plate 401 and a countersunk bolt 402. The countersunk bolt 402 facilitates the assembly and disassembly of the mounting component 4.

[0043] Specifically, the mounting plate 401 is sleeved on the outer side wall of the base plate 1, and a countersunk screw hole 401a is provided on the upper surface of the mounting plate 401, and the countersunk bolt 402 is threaded into the inside of the countersunk screw hole 401a.

[0044] Furthermore, the countersunk bolts 402 are arranged in a rectangular array, and the countersunk bolt holes 401a are opened in a rectangular array;

[0045] The operation process of this embodiment is as follows: the worker places the mounting plate 401 on the mounting surface, rotates the countersunk bolt 402 counterclockwise to lock the mounting plate 401 on the mounting surface and locks the mounting component 4 on the mounting surface; conversely, the worker removes the mounting component 4 from the mounting surface.

[0046] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0047] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A clamping device for processing plastic products, comprising a substrate (1), characterized in that: An adjusting assembly (2) is provided on the upper surface of the substrate (1). The adjusting assembly (2) includes a lead screw (202) disposed above the substrate (1). A motor (201) connected to the end of the lead screw (202) is connected to the upper surface of the substrate (1). A ball nut (204a) symmetrically arranged on the peripheral sidewall of the lead screw (202) is provided with an ear block (204). A movable plate (203) is fixed to the upper surface of the ear block (204). The lower surface of the ear block (204) is in contact with the upper surface of the substrate (1). A clamping assembly (3) is provided on the movable plate (203). The clamping assembly (3) includes a hydraulic cylinder (302) disposed on one side wall of the movable plate (203). A mounting plate (303) is disposed on the other side wall of the movable plate (203). The end of the hydraulic rod (302a) connected to the end of the hydraulic cylinder (302) passes through the side walls of the movable plate (203) and the mounting plate (303) in sequence. A pressing block is disposed on the side wall of the mounting plate (303) away from the movable plate (203). (304) A connecting rod (305) is provided on the lower surface of the abutting block (304). The end of the connecting rod (305) away from the abutting block (304) is provided on the peripheral side wall of the hydraulic rod (302a). A guide block (304b) is fixedly connected to the side wall of the abutting block (304) near the mounting plate (303). A guide groove (303c) is provided on the side wall of the mounting plate (303) away from the movable plate (203). The guide block (304b) is slidably connected inside the guide groove (303c).

2. The clamping device for processing plastic products according to claim 1, characterized in that: The upper surface of the substrate (1) has symmetrically opened grooves (101) in a T-shape, and the lower surface of the movable plate (203) has symmetrically fixed sliders (203a) in a T-shape, and the sliders (203a) are slidably connected inside the grooves (101).

3. The clamping device for processing plastic products according to claim 1, characterized in that: The lead screw (202) has a support (202a) symmetrically rotatably connected to its peripheral sidewall, and the lower surface of the support (202a) is connected to the upper surface of the base plate (1).

4. The clamping device for processing plastic products according to claim 1, characterized in that: The mounting bracket (301) connected to the end of the hydraulic cylinder (302) away from the hydraulic rod (302a) is U-shaped, and the mounting bracket (301) is locked to the side wall of the movable plate (203) by screws (301a).

5. A clamping device for processing plastic products according to claim 1, characterized in that: The mounting plate (303) has protruding rods (303a) fixedly connected in a ring array on the side wall near the movable plate (203). The end of the protruding rod (303a) away from the mounting plate (303) penetrates the side wall of the movable plate (203). The locking nut (303b) threaded on the peripheral side wall of the protruding rod (303a) is in contact with the side wall of the movable plate (203).

6. A clamping device for processing plastic products according to claim 1, characterized in that: One end of the connecting rod (305) is hinged to the lower surface of the abutment block (304) via a hinge (305a), and the other end of the connecting rod (305) is hinged to the peripheral wall of the hydraulic rod (302a) via a hinge (305a). An anti-slip pad (304a) is provided on the upper surface of the abutment block (304).

7. A clamping device for processing plastic products according to claim 1, characterized in that: The clamping blocks (304) are arranged in a ring array, the guide blocks (304b) are T-shaped, the guide grooves (303c) are T-shaped, and the guide grooves (303c) are arranged in a ring array.

8. A clamping device for processing plastic products according to claim 7, characterized in that: An installation assembly (4) is provided on the outer side wall of the substrate (1). The installation assembly (4) includes an installation plate (401) sleeved on the outer side wall of the substrate (1). The upper surface of the installation plate (401) is provided with countersunk screw holes (401a) in a rectangular array. The countersunk screw holes (401a) are internally threaded with countersunk bolts (402).

Citation Information

Patent Citations

  • Clamping device for plastic product processing

    CN221245696U