A bag supporting and clamping device with adjustable clamping degree
By designing an adjustable clamping gripper structure, the problem of the driven gripper failing to clamp tightly was solved, thus improving the working stability and efficiency of the bag feeding machine.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUXI NAITE ELECTROMECHANICAL INTEGRATING TECH
- Filing Date
- 2025-05-28
- Publication Date
- 2026-06-05
AI Technical Summary
The driven gripper of the existing bag feeding machine lacks an adjustment structure, which causes the driven gripper to fail to clamp when the active gripper is in position, resulting in the packaging bag falling off and affecting the bag feeding rate.
An adjustable clamping gripper structure was designed. The clamping degree of the driven gripper is adjusted by a clamping plate cylinder, and the action of the active gripper and the driven gripper is synchronized by gear transmission.
It achieves adjustable clamping of the driven gripper, avoids bag dropping, improves bag loading rate, has a simple structure, is easy to install and maintain, and has stable operation.
Smart Images

Figure CN224324234U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of packaging equipment technology and relates to a bag-supporting claw structure with adjustable clamping force. Background Technology
[0002] Bag feeding machines are a common type of packaging equipment and are widely used in various industries, such as feed, food, and chemicals. When automatically feeding bags, the packaging bags must be fully opened and must not be wrinkled, fall off, or tilted.
[0003] Bag feeding machines typically use grippers to support the bags. Some bag feeding machines use a linkage mode between the grippers to save costs. The action of the active gripper drives the action of the driven gripper. However, during operation, the driven gripper does not have an adjustment structure, which causes the active gripper to be in position, but the driven gripper does not clamp tightly, resulting in the bag falling off, low bag feeding rate, and affecting the work. Summary of the Invention
[0004] To address the shortcomings of existing technologies, this utility model provides a bag clamping claw structure with adjustable clamping force.
[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows:
[0006] An adjustable clamping gripper structure includes:
[0007] A fixed bracket, wherein a first mounting bracket and a second mounting bracket are respectively provided at the middle part and one end of the fixed bracket, and a first fixing pin and a second fixing pin are symmetrically provided on the fixed bracket between the two mounting brackets.
[0008] An active gripper is provided with an active gear sleeve at its upper end, which is fitted onto a first fixed pin. A connecting plate is provided at the upper end of the active gear sleeve. An active gripper plate is provided at the lower end of the active gripper.
[0009] The driven gripper has a driven gear sleeve at its upper end that can cooperate with the driving gear sleeve, and the driven gear sleeve is fitted onto the second fixed pin; the driven gripper has a driven gripper plate at its lower end.
[0010] An auxiliary clamping plate is fixedly installed on the first mounting bracket and can cooperate with the active claw plate.
[0011] A clamping cylinder is fixedly mounted on a second mounting bracket. A fixing plate is provided on the piston rod of the clamping cylinder, and an adjusting clamping plate that can cooperate with the driven gripper is provided on the fixing plate.
[0012] A drive cylinder, one end of which is hinged to a fixed bracket, and the piston rod of the drive cylinder is connected to a connecting plate.
[0013] Preferably, a connecting bracket is provided at the upper end of the fixed bracket, and one end of the driving cylinder is hinged to the connecting bracket by a connecting rod.
[0014] Preferably, a connecting joint is provided between the piston rod of the drive cylinder and the connecting plate.
[0015] Preferably, a plurality of corresponding teeth are provided between the active claw plate and the auxiliary clamping plate.
[0016] Preferably, the clamp cylinder is provided with a connecting flange, which is connected to the second mounting bracket by a connector.
[0017] Preferably, the second mounting bracket has a clearance hole that can cooperate with the piston rod of the clamping cylinder.
[0018] Preferably, the first mounting bracket is provided with a fastener for fixing the auxiliary clamp.
[0019] Compared with the prior art, this utility model has the following advantages:
[0020] This utility model utilizes a clamping cylinder to adjust the position of the adjusting clamping plate that cooperates with the driven claw plate, which can easily and quickly adjust the clamping degree between the driven claw plate and the adjusting clamping plate, thereby avoiding the situation where the conventional driven claw cannot clamp, and better completing the bag-holding work; the structure of this utility model is simple and ingeniously designed, and it is easy to install and maintain; the gear transmission makes the action between the active claw and the driven claw synchronized, and the operation is stable. Attached Figure Description
[0021] Figure 1 This is a front view schematic diagram of the present utility model.
[0022] Figure 2 This is a schematic diagram of the fixed support structure of this utility model.
[0023] Figure 3 This is a schematic diagram of the active gripper structure of this utility model.
[0024] In the diagram: 1. Fixed bracket; 2. First mounting bracket; 3. Second mounting bracket; 4. First fixing pin; 5. Second fixing pin; 6. Active gripper; 7. Active gear sleeve; 8. Connecting plate; 9. Active gripper plate; 10. Driven gripper; 11. Driven gear sleeve; 12. Driven gripper plate; 13. Auxiliary clamping plate; 14. Clamping plate cylinder; 15. Fixed plate; 16. Adjusting clamping plate; 17. Connecting bracket; 18. Connecting rod; 19. Connecting joint; 20. Connecting flange; 21. Connecting piece; 22. Clearance hole; 23. Fixing piece; 24. Drive cylinder; 25. Gear. Detailed Implementation
[0025] To enable those skilled in the art to better understand the present invention, the technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings.
[0026] This embodiment proposes an adjustable clamping gripper structure for supporting bags, including a fixed bracket 1, an active gripper 6, a driven gripper 10, an auxiliary clamping plate 13, a clamping plate cylinder 14, and a driving cylinder 24. The fixed bracket 1 provides support for the rotation of each component, and the active gripper 6 and the driven gripper 10 extend to support the bag. The clamping plate cylinder 14 is used to adjust the clamping plate fit, and the driving cylinder 24 is used to drive the active gripper 6 to move.
[0027] like Figures 1-3 As shown, a first mounting bracket 2 and a second mounting bracket 3 are respectively provided at the middle part and one end of the fixed bracket 1, and a first fixing pin 4 and a second fixing pin 5 are symmetrically provided on the fixed bracket 1 between the two mounting brackets.
[0028] The upper end of the active gripper 6 is provided with an active gear sleeve 7, which is fitted onto the first fixed pin 4 shaft. The upper end of the active gear sleeve 7 is provided with a connecting plate 8; the lower end of the active gripper 6 is provided with an active gripper plate 9.
[0029] The driven gripper 10 has a driven gear sleeve 11 at its upper end that can cooperate with the driving gear sleeve 7. The driven gear sleeve 11 is fitted onto the second fixed pin 5 shaft. The driven gripper 10 has a driven gripper plate 12 at its lower end. When the driving gripper 6 moves, the driven gripper 10 is driven to move through the cooperation between the driving gear sleeve 7 and the driven gear sleeve 11.
[0030] The auxiliary clamping plate 13 is fixedly installed on the first mounting bracket 2, and the auxiliary clamping plate 13 can cooperate with the active claw plate 9;
[0031] The clamping cylinder 14 is fixedly installed on the second mounting bracket 3. A fixing plate 15 is provided on the piston rod of the clamping cylinder 14. An adjusting clamping plate 16 that can cooperate with the driven gripper 10 is provided on the fixing plate 15. By adjusting the length of the piston rod of the clamping cylinder 14, the clamping degree between the adjusting clamping plate 19 and the driven gripper 10 can be adjusted to avoid bag dropping or falling due to insufficient clamping.
[0032] One end of the drive cylinder 24 is hinged to the fixed bracket 1, and the piston rod of the drive cylinder 24 is connected to the connecting plate 8. The piston rod of the drive cylinder 24 drives the active gripper 6 to move through the connecting plate 8.
[0033] Furthermore, a connecting bracket 17 is provided at the upper end of the fixed bracket 1, and one end of the driving cylinder 24 is hinged to the connecting bracket 17 by a connecting rod 18.
[0034] Furthermore, a connecting joint 19 is provided between the piston rod of the driving cylinder 24 and the connecting plate 8, which facilitates the connection and cooperation between the piston rod of the driving cylinder 24 and the connecting plate 8.
[0035] Furthermore, a number of corresponding teeth 25 are respectively provided between the active claw plate 9 and the auxiliary clamping plate 13. The teeth 25 facilitate better clamping of the bag and increase friction.
[0036] Furthermore, the clamp cylinder 14 is provided with a connecting flange 20, which is connected to the second mounting bracket 3 by means of a connector 21. The connecting flange 20 facilitates the assembly of the clamp cylinder 14.
[0037] Furthermore, the second mounting bracket 3 is provided with a clearance hole 22 that can cooperate with the piston rod of the clamp cylinder 14, and the clearance hole 22 facilitates the extension and retraction of the piston rod of the clamp cylinder 14.
[0038] Furthermore, the first mounting bracket 2 is provided with a fastener 23 for fixing the auxiliary clamp 13.
[0039] Working principle: When this utility model is in use, one end of the fixed bracket 1 is fixedly installed on the bag feeding machine. When the piston rod of the drive cylinder 24 retracts, the connecting plate 8 drives the active gripper 6 to move. The end of the active gripper 6 rotates around the first fixed pin 4. When the active gripper 6 moves, the cooperation between the active gear sleeve 7 and the driven gear sleeve 11 drives the driven gripper 10 to move. The active gripper plate 9 and the driven gripper plate 12 separate and cooperate with the auxiliary clamping plate 13 and the adjusting clamping plate 19 respectively. When it is found that the degree of cooperation between the driven gripper plate 12 and the adjusting clamping plate 19 is insufficient, the distance between the adjusting clamping plate 19 and the driven gripper plate 12 can be adjusted by adjusting the extension degree of the piston rod of the clamping cylinder 14, so as to better complete the bag holding and clamping work.
[0040] It is understood that the above embodiments are merely exemplary models used to illustrate the principles of this utility model, and this utility model is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and essence of this utility model, and these modifications and improvements are also considered to be within the protection scope of this utility model.
Claims
1. A clamping gripper structure with adjustable clamping force, characterized in that, include: A fixed bracket (1) is provided with a first mounting bracket (2) and a second mounting bracket (3) at the middle and one end of the fixed bracket (1), and a first fixing pin (4) and a second fixing pin (5) are symmetrically provided on the fixed bracket (1) between the two mounting brackets. Active gripper (6), the upper end of the active gripper (6) is provided with an active gear sleeve (7), the active gear sleeve (7) is fitted on the shaft of the first fixed pin (4), the upper end of the active gear sleeve (7) is provided with a connecting plate (8); the lower end of the active gripper (6) is provided with an active gripper plate (9). Driven gripper (10), the upper end of which is provided with a driven gear sleeve (11) that can cooperate with the driving gear sleeve (7), the driven gear sleeve (11) is fitted on the second fixed pin (5) shaft; the lower end of the driven gripper (10) is provided with a driven gripper plate (12). An auxiliary clamping plate (13) is fixedly installed on the first mounting bracket (2), and the auxiliary clamping plate (13) can cooperate with the active claw plate (9); Clamping cylinder (14), the clamping cylinder (14) is fixedly installed on the second mounting bracket (3), the piston rod of the clamping cylinder (14) is provided with a fixing plate (15), and the fixing plate (15) is provided with an adjusting clamping plate (16) that can cooperate with the driven gripper (10). A drive cylinder (24) is hinged at one end to a fixed bracket (1), and the piston rod of the drive cylinder (24) is connected to an active connecting plate (8).
2. The adjustable clamping gripper structure according to claim 1, characterized in that, The fixed bracket (1) is provided with a connecting bracket (17) at one end, and one end of the driving cylinder (24) is hinged to the connecting bracket (17) by a connecting rod (18).
3. The adjustable clamping gripper structure according to claim 1, characterized in that, A connecting joint (19) is provided between the piston rod of the drive cylinder (24) and the connecting plate (8).
4. The adjustable clamping gripper structure according to claim 1, characterized in that, A number of corresponding teeth (25) are respectively provided between the active claw plate (9) and the auxiliary clamping plate (13).
5. The adjustable clamping gripper structure according to claim 1, characterized in that, The clamp cylinder (14) is provided with a connecting flange (20), which is connected to the second mounting bracket (3) by means of a connector (21).
6. The adjustable clamping gripper structure according to claim 1, characterized in that, The second mounting bracket (3) has a clearance hole (22) that can cooperate with the piston rod of the clamp cylinder (14).
7. The adjustable clamping gripper structure according to claim 1, characterized in that, The first mounting bracket (2) is provided with a fastener (23) for fixing the auxiliary clamp (13).