A wrapping material gripping mechanism

Abstract

A kind of package material clamping mechanism, including clamping arm assembly, the drive unit of driving clamping arm assembly open and close, the rotary cylinder of driving drive unit rotation;Clamping arm assembly includes first slide rail, first clamping arm with first slide rail sliding cooperation, second slide rail and second clamping arm with second slide rail sliding cooperation, first clamping arm and second clamping arm are symmetrically arranged left and right;Drive unit includes mounting panel, motor base fixed on the back of mounting panel, motor is arranged on motor base, gear is arranged on the front of mounting panel and is connected with motor output shaft, first rack and second rack are engaged with gear, the movement direction of first rack and second rack is opposite, first rack is connected with first clamping arm, second rack is connected with second clamping arm, first slide rail and second slide rail are arranged on the front of mounting panel, motor base is connected with rotary cylinder.The utility model motion synchronous precision, stable and reliable structure, especially suitable for right angle transfer station.

Description

Technical Field

[0001] This utility model relates to the field of automation equipment technology, specifically to a gripping mechanism for gripping and transferring packaging materials on an automated production line. Background Technology

[0002] On packaging production lines in industries such as food, pharmaceuticals, and cosmetics, it is often necessary to transfer packaging materials such as boxes and cartons from one conveyor belt to another conveyor belt arranged at a certain angle (such as 90 degrees). This process is usually completed by robotic arms or specialized gripping mechanisms.

[0003] The existing clamping mechanism may have the following problems: 1) The clamping action is not smooth enough. Using a cylinder to directly drive the clamping arm may cause excessive impact, damaging the packaging material or causing inaccurate positioning; 2) The movement synchronization of the two clamping arms is poor, causing the packaging material to deflect or tilt during the clamping process, affecting the placement accuracy; 3) The overall structure is not rigid enough, and it is easy to shake after long-term use, affecting reliability; 4) The layout is not compact enough and it is difficult to adapt to corner workstations with limited space.

[0004] Therefore, there is an urgent need for a packaging material gripping mechanism that features smooth gripping action, good synchronization, strong structural rigidity, and a reasonable layout. Summary of the Invention

[0005] The technical problem to be solved by this utility model is to provide a packaging material clamping mechanism with precise synchronous movement and stable and reliable structure, which is particularly suitable for right-angle transfer stations.

[0006] To solve the above-mentioned technical problems, the technical solution of this utility model is: a packaging material clamping mechanism, including a clamping arm assembly, a driving unit for opening and closing the clamping arm assembly, a rotary cylinder for rotating the driving unit, and a lifting device for raising and lowering the rotary cylinder; the clamping arm assembly includes a first slide rail, a first clamping arm slidably engaged with the first slide rail, a second slide rail, and a second clamping arm slidably engaged with the second slide rail, the first clamping arm and the second clamping arm being arranged symmetrically from left to right; the driving unit includes a mounting panel, a motor base fixed to the back of the mounting panel, a motor mounted on the motor base, a gear mounted on the front of the mounting panel and connected to the output shaft of the motor, a first rack meshing with the gear, and a second rack meshing with the gear, the first rack and the second rack moving in opposite directions, the first rack being connected to the first clamping arm, the second rack being connected to the second clamping arm, the first slide rail and the second slide rail being mounted on the front of the mounting panel, and the motor base being connected to the rotary cylinder. The principle of this invention is as follows: After the packaging material is transported to the predetermined position along the first conveyor belt, the entire clamping mechanism is lowered by the external lifting device. Then, the motor starts, drives the gear to rotate, and causes the first rack and the second rack to move towards each other, thereby driving the first clamping arm and the second clamping arm to close synchronously and firmly clamp the packaging material. The external lifting device lifts the mechanism, and the rotary cylinder is activated, driving the entire clamping mechanism to rotate 90 degrees, sending the packaging material above the second conveyor belt. The mechanism descends, the motor reverses, and the clamping arms open synchronously, placing the packaging material smoothly on the second conveyor belt, completing the transfer.

[0007] As an improvement, the mounting panel is provided with a first slide groove and a second slide groove. The first slide groove is arranged parallel to the first slide rail, and the second slide groove is arranged parallel to the second slide rail. A first slider is provided in the first slide groove and is connected to a first rack. A second slider is provided in the second slide groove and is connected to a second rack.

[0008] As an improvement, the first rack has a first slider at both ends, and the second rack has a second slider at both ends.

[0009] As an improvement, both the first and second slide rails are double rails.

[0010] As an improvement, the first slide groove is located on the upper part of the mounting panel, the second slide groove is located on the lower part of the mounting panel, and the first slide rail and the second slide rail are located between the first slide groove and the second slide groove.

[0011] As an improvement, the first clamping arm includes a first connecting plate, a first square tube perpendicularly connected to the first connecting plate, and an L-shaped plate disposed on the first square tube. The first connecting plate is slidably engaged with the first slide rail via a first slider. The second clamping arm includes a second connecting plate, a second square tube perpendicularly connected to the second connecting plate, and an L-shaped plate disposed on the second square tube. The second connecting plate is slidably engaged with the second slide rail via a second slider.

[0012] As an improvement, it also includes a first conveyor belt and a second conveyor belt arranged perpendicularly to each other, with the rotary cylinder located at the angle between the first conveyor belt and the second conveyor belt.

[0013] The beneficial effects of this utility model compared with the prior art are: 1. Excellent synchronization: The structure of one gear driving two opposing racks simultaneously ensures the absolute synchronization and central symmetry of the two gripping arms, resulting in precise gripping and preventing packaging material from tilting. 2. Smooth operation: Compared with cylinder drive, motor drive offers more controllable speed, smoother movement, and reduced impact; 3. High structural rigidity: It adopts double slide rail guidance and adds a slider-slide groove auxiliary guidance system to the rack, forming multiple protections to ensure the stability and service life of the mechanism under long-term heavy load operation; 4. Compact and reasonable layout: The drive motor is arranged on the back of the mounting panel and the overall reversal is achieved by a rotary cylinder. The structure is compact and is very suitable for installation and operation in the space between two vertical conveyor belts. Attached Figure Description

[0014] Figure 1 This is a layout diagram.

[0015] Figure 2 This utility model is shown in three-dimensional form.

[0016] Figure 3 This is a front view of the present utility model. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings.

[0018] like Figure 1 As shown, a packaging material clamping mechanism has the core function of clamping and transferring packaging materials between a first conveyor belt 16 and a second conveyor belt 17 that are arranged perpendicularly to each other.

[0019] like Figures 1 to 3 As shown, the mounting base of the entire mechanism is the rotary cylinder 1. The rotary cylinder 1 is preferably a model capable of 90-degree reciprocating rotation. It is fixedly mounted on an external lifting device and located at the angle between the first conveyor belt 16 and the second conveyor belt 17.

[0020] like Figures 1 to 3 As shown, the output end of the rotary cylinder 1 is fixedly connected to the motor mount 2. The motor mount 2 is used to mount the motor 3, which is preferably a servo motor or a stepper motor, in order to precisely control the opening and closing position and speed of the clamping arm. The motor mount 2 is fixedly connected to the back of the mounting panel 4. Therefore, when the rotary cylinder 1 is activated, it will drive the motor mount 2, the motor 3, the mounting panel 4, and all the components mounted on it to rotate together.

[0021] like Figures 1 to 3 As shown, the core component for driving the opening and closing of the clamping arm is mounted on the front of the mounting panel 4. The output shaft of the motor 3 passes through the mounting panel 4 and is connected to a gear 5 located on the front of the mounting panel 4. The gear 5 meshes with both the upper first rack 6 and the lower second rack 7. When the motor 3 rotates, it drives the gear 5 to rotate, thereby driving the first rack 6 and the second rack 7 to move linearly in opposite directions.

[0022] like Figures 1 to 3 As shown, to ensure the smooth movement of the rack and prevent it from tilting, a first groove 12 is formed at the upper part of the mounting panel 4, and a second groove 13 is formed at the lower part. The two ends of the first rack 6 are slidably engaged with the first groove 12 via a first slider 14. Similarly, the two ends of the second rack 7 are slidably engaged with the second groove 13 via a second slider 15.

[0023] like Figures 1 to 3 As shown, the clamping arm assembly includes a first clamping arm 10 and a second clamping arm 11 arranged symmetrically on the left and right sides. The first clamping arm 10 consists of a first connecting plate, a first square tube, and an L-shaped gripper. One end of the first connecting plate is fixedly connected to the first rack 6, and the bottom is slidably engaged with the first slide rail 8 via a slider. Similarly, the second clamping arm 11 is connected to the second rack 7 via a second connecting plate and is slidably engaged with the second slide rail 9. Both the first slide rail 8 and the second slide rail 9 are double-rail structures, firmly mounted on the mounting panel 4, providing high-rigidity guidance for the reciprocating motion of the clamping arms.

[0024] Working principle: Clamping: After the packaging material is conveyed to the predetermined position along the first conveyor belt 16, the entire clamping mechanism is lowered by an external lifting device (not shown in the figure). Then, the motor 3 starts and drives the gear 5 to rotate, causing the first rack 6 and the second rack 7 to move towards each other, thereby driving the first clamping arm 10 and the second clamping arm 11 to close synchronously and firmly clamp the packaging material.

[0025] Transfer: The external lifting device lifts the mechanism, and the rotary cylinder 1 is activated, driving the entire clamping mechanism to rotate 90 degrees, sending the packaging material above the second conveyor belt 17.

[0026] Release: The mechanism descends, motor 3 reverses, and the clamping arms open synchronously, placing the packaging material smoothly onto the second conveyor belt 17 to complete the transfer.

Claims

1. A packaging material gripping mechanism, characterized in that: The device includes a clamping arm assembly, a drive unit for opening and closing the clamping arm assembly, a rotary cylinder for rotating the drive unit, and a lifting device for raising and lowering the rotary cylinder. The clamping arm assembly includes a first slide rail, a first clamping arm slidably engaged with the first slide rail, a second slide rail, and a second clamping arm slidably engaged with the second slide rail. The first and second clamping arms are symmetrically arranged. The drive unit includes a mounting panel, a motor base fixed to the back of the mounting panel, a motor mounted on the motor base, a gear mounted on the front of the mounting panel and connected to the motor output shaft, a first rack meshing with the gear, and a second rack meshing with the gear. The first and second racks move in opposite directions. The first rack is connected to the first clamping arm, and the second rack is connected to the second clamping arm. The first and second slide rails are located on the front of the mounting panel. The motor base is connected to the rotary cylinder.

2. The packaging material clamping mechanism according to claim 1, characterized in that: The mounting panel is provided with a first slide groove and a second slide groove. The first slide groove is arranged parallel to the first slide rail, and the second slide groove is arranged parallel to the second slide rail. A first slider is provided in the first slide groove and is connected to a first rack. A second slider is provided in the second slide groove and is connected to a second rack.

3. The packaging material clamping mechanism according to claim 2, characterized in that: The first rack has a first slider at both ends, and the second rack has a second slider at both ends.

4. The packaging material clamping mechanism according to claim 1, characterized in that: Both the first and second slide rails are double rails.

5. A packaging material clamping mechanism according to claim 2, characterized in that: The first slide groove is located on the upper part of the mounting panel, the second slide groove is located on the lower part of the mounting panel, and the first slide rail and the second slide rail are located between the first slide groove and the second slide groove.

6. The packaging material clamping mechanism according to claim 1, characterized in that: The first clamping arm includes a first connecting plate, a first square tube perpendicularly connected to the first connecting plate, and an L-shaped plate disposed on the first square tube. The first connecting plate is slidably engaged with the first slide rail via a first slider. The second clamping arm includes a second connecting plate, a second square tube perpendicularly connected to the second connecting plate, and an L-shaped plate disposed on the second square tube. The second connecting plate is slidably engaged with the second slide rail via a second slider.

7. The packaging material clamping mechanism according to claim 1, characterized in that: It also includes a first conveyor belt and a second conveyor belt arranged perpendicularly to each other, and the rotary cylinder is located at the angle between the first conveyor belt and the second conveyor belt.

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