Clamping device for packaging box

By using a motor-driven clamping device with a transmission arm and an adjustable transmission plate, the problem of high speed but large impact of pneumatic clamping fingers is solved, achieving stable clamping of packaging boxes of different widths and improving applicability.

CN224030126UActive Publication Date: 2026-03-24JIANGSU KAIKAI MACHINERY TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-29
Publication Date
2026-03-24

AI Technical Summary

Technical Problem

Existing pneumatic grippers are fast but have a large impact when gripping packaging boxes. Their stroke is difficult to adjust and they cannot adapt to packaging boxes of different widths, thus limiting their application range.

Method used

The clamping device is driven by a motor. The first and second transmission arms drive the slide and the gripper to move, thereby clamping and releasing the packaging box. The motor speed is adjustable. Combined with replaceable transmission plates and fastening screws, it can adapt to different width specifications.

Benefits of technology

It avoids impact damage during clamping, improves adaptability to packaging boxes of different widths and specifications, and expands the scope of application.

✦ Generated by Eureka AI based on patent content.

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Abstract

The clamping device comprises a base, a first sliding seat, a second sliding seat, a driving assembly and a clamping jaw, the driving assembly comprises a motor, a first transmission arm, a second transmission arm and a transmission plate, the first sliding seat and the second sliding seat are distributed on the two sides of the motor, a rotating arm extending in the radial direction is arranged on a rotating shaft of the motor, and the first transmission arm is connected with the second transmission arm. The first transmission arm is arranged between one end of the rotating arm and the first sliding seat, the transmission plate is arranged on the second sliding seat, the second transmission arm is arranged between the other end of the rotating arm and the transmission plate, a mounting hole is formed in the transmission plate, a fastening screw connected with the second sliding seat is arranged in the mounting hole, and the clamping jaw is arranged on the first sliding seat and the second sliding seat. The motor is used for driving the rotating arm to rotate, pulling the first sliding seat and the second sliding seat and driving the clamping jaws to move to clamp and release the packaging boxes, and the clamping of the packaging boxes with different width specifications is realized by replacing transmission plates or mounting holes with different lengths to be matched with fastening screws.
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Description

TECHNICAL FIELD

[0001] The utility model relates to clamping technical field especially, relates to a clamping device for packing box. BACKGROUND

[0002] In the production or packaging use process of packing box, the clamping fixing or carrying of packing box needs to be carried out. For example, the synchronous action of two clamping claws can be carried out by using pneumatic clamping finger, the clamping of both sides of packing box is realized, and then the pneumatic clamping finger and packing box are moved and carried through the mechanical arm.

[0003] The action speed of pneumatic clamping finger is relatively fast, the impact on packing box is relatively large in the clamping process, and the pneumatic clamping finger needs to be located on the middle line of the gap between the two clamping claws, which limits the use range. In addition, the stroke of pneumatic clamping finger is difficult to adjust, and it cannot be applied to packing boxes of different width specifications, so it needs to be improved. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a clamping device for packing box, clamping packing box, and improving the adaptability to packing boxes of different width specifications.

[0005] To achieve this purpose, the utility model adopts the following technical scheme:

[0006] A clamping device for packing box, comprising: a base, a first sliding seat, a second sliding seat, a driving assembly and a clamping claw, the driving assembly comprises a motor, a first transmission arm, a second transmission arm and a transmission plate, the motor is arranged on the base, the first sliding seat and the second sliding seat are distributed on the two sides of the motor, a radial extension rotating arm is arranged on the rotating shaft of the motor, the first transmission arm is arranged between one end of the rotating arm and the first sliding seat, the transmission plate is arranged on the second sliding seat, the second transmission arm is arranged between the other end of the rotating arm and the transmission plate, a mounting hole is arranged on the transmission plate, a fastening screw connected with the second sliding seat is arranged in the mounting hole, and the clamping claw is arranged on the first sliding seat and the second sliding seat.

[0007] Among them, the base is provided with a linear sliding rail, and the back of the first sliding seat and the second sliding seat is provided with a sliding block located on the linear sliding rail.

[0008] Among them, the motor is provided with a mounting plate located in front of the base, the base is provided with an avoidance slot corresponding to the tail of the motor, and the tail of the motor extends to the rear of the base through the avoidance slot.

[0009] Among them, the base is provided with a weight reduction groove located on the two sides of the motor.

[0010] Among them, the mounting hole is a waist hole.

[0011] Among them, the first transmission arm and the second transmission arm adopt C-shaped curved arms respectively.

[0012] The first slide is provided with a pin seat that is connected to the first transmission arm.

[0013] The beneficial effects of this utility model are as follows: A packaging box clamping device utilizes a motor to drive the rotation of a rotating arm, which in turn pulls the first and second slides via a first and second transmission arm, changing the distance between the first and second slides and driving the movement of the gripper to perform clamping and releasing actions on the packaging box. The motor speed is adjustable, avoiding impact damage to the packaging box during clamping. The second transmission arm is extended using a transmission plate, allowing the motor to be eccentrically fixed on the base. By changing transmission plates of different lengths or by using mounting holes and fastening screws, it is possible to clamp packaging boxes of different widths and specifications, making it widely applicable. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 yes Figure 1 A schematic diagram of the structure of the driving component. Detailed Implementation

[0016] The following is combined with Figures 1-2 The technical solution of this utility model will be further illustrated through specific embodiments.

[0017] like Figure 1 The packaging box clamping device shown includes: a base 1, a first slide 6, a second slide 5, a drive assembly, and grippers 7, as follows. Figure 2 As shown, the drive assembly includes a motor 3, a first transmission arm 11, a second transmission arm 12, and a transmission plate 9. The motor 3 is mounted on the base 1, and a mounting plate 2 is provided on the motor 3 on the front side of the base 1. The mounting plate 2 can be fixed to the front side of the base 1 with screws, thereby fixing the motor 3.

[0018] The base 1 is provided with a clearance groove corresponding to the tail of the motor, such as Figure 2 As shown, the tail of the motor 3 extends to the rear of the base 1 through a clearance groove, without occupying the space on the front of the base 1, thus improving space utilization. In addition, the base 1 is provided with weight-reducing grooves 13 on both sides of the motor 3. The base 1 can be made of rectangular aluminum alloy plate, and the weight-reducing grooves 13 further reduce the weight of the base 1.

[0019] The first slide block 6 and the second slide block 5 are distributed on both sides of the motor 3. In this embodiment, a linear slide rail 4 is provided on the base 1, and a slider 16 located on the linear slide rail 4 is provided on the back of the first slide block 6 and the second slide block 5 to guide the movement of the first slide block 6 and the second slide block 5, which can avoid the problem of deflection.

[0020] like Figure 2 As shown, a radially extending rotating arm 15 is provided on the rotating shaft of the motor 3. The motor 3 is a servo motor, which can be rotated by a PLC. The rotation angle is flexibly controlled, so as to realize the fixed-angle rotation and reset of the rotating arm 15.

[0021] like Figure 1 As shown, the first transmission arm 11 is positioned between one end of the rotating arm 15 and the first slide block 6. The first slide block 6 is provided with a pin seat 8 connected to the first transmission arm 11, which does not affect the rotation of the first transmission arm 11. The rotation of the rotating arm 15 drives the first transmission arm 11 to rotate, thereby driving the first slide block 6.

[0022] The transmission plate 9 is mounted on the second slide block 5, and the second transmission arm 12 is positioned between the other end of the rotating arm 15 and the transmission plate 9. The rotation of the rotating arm 15 drives the second transmission arm 12 to rotate, thereby driving the transmission plate 9 and the second slide block 5. The first transmission arm 11 and the second transmission arm 12 are respectively C-shaped curved arms to prevent the rotating arm 15, the first transmission arm 11, and the second transmission arm 12 from being on the same straight line, resulting in more stable operation.

[0023] The gripper 7 is mounted on the first slide 6 and the second slide 5. The motor 3 drives the rotating arm 15 to rotate at a certain angle, which in turn pulls the first slide 6 and the second slide 5 through the first transmission arm 11 and the second transmission arm 12, changing the distance between the first slide 6 and the second slide 5, and driving the gripper 7 to move to perform the clamping and releasing action of the packaging box. The speed of the motor 3 is adjustable to avoid impact damage to the packaging box during the clamping process.

[0024] A mounting hole 10 is provided on the transmission plate 9, and a fastening screw 14 is provided in the mounting hole 10 to connect with the second slide 5, thereby fixing the transmission plate 9 on the second slide 5 and ensuring structural stability. In this embodiment, the mounting hole 10 is a slotted hole, and the length direction of the slotted hole corresponds to the linear movement direction of the second slide 5. By replacing the transmission plate 9 with different lengths or by cooperating the mounting hole 10 with the fastening screw 14, the clamping of packaging boxes of different widths can be satisfied.

[0025] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. A clamping device for packaging boxes, characterized in that, include: The device comprises a base, a first slide, a second slide, a drive assembly, and grippers. The drive assembly includes a motor, a first transmission arm, a second transmission arm, and a transmission plate. The motor is mounted on the base. The first and second slides are located on opposite sides of the motor. A radially extending rotating arm is mounted on the motor's shaft. The first transmission arm is positioned between one end of the rotating arm and the first slide. The transmission plate is mounted on the second slide. The second transmission arm is positioned between the other end of the rotating arm and the transmission plate. The transmission plate has mounting holes, in which fastening screws for connecting to the second slide are installed. The grippers are mounted on the first and second slides.

2. The clamping device for packaging boxes according to claim 1, characterized in that, The base is provided with a linear slide rail, and the back of the first slide and the second slide are provided with sliders located on the linear slide rail.

3. The clamping device for packaging boxes according to claim 1, characterized in that, The motor is provided with a mounting plate located on the front of the base, and the base is provided with a clearance groove corresponding to the tail of the motor, and the tail of the motor extends to the rear of the base through the clearance groove.

4. The clamping device for packaging boxes according to claim 1, characterized in that, The base is provided with weight-reducing grooves located on both sides of the motor.

5. The clamping device for packaging boxes according to claim 1, characterized in that, The mounting hole is a waist hole.

6. The clamping device for packaging boxes according to claim 1, characterized in that, The first and second transmission arms are respectively C-shaped curved arms.

7. The clamping device for packaging boxes according to claim 1, characterized in that, The first slide is provided with a pin seat that is connected to the first transmission arm.