Gripper of bag breaking machine

Abstract

The invention discloses a gripper of a bag breaking machine, and relates to the field of bag breaking machines, and the gripper of the bag breaking machine is characterized in that the gripper comprises a bag grabbing part and a shaking part, the bag grabbing part comprises a bag returning assembly, the bag grabbing part comprises a support plate, two claw thorn rows and two claw thorn rotating air cylinders, and the two claw thorn rows are both located below the support plate; the two claw thorn rows are rotationally connected with the support plate, the connecting positions are located at the two ends of the support plate, the claw thorn rotating air cylinders are used for driving the claw thorn rows to rotate, and claw tips of the two claw thorn rows are opposite after the two claw thorn rows rotate. The two claw thorn rows are turned outwards, the tip ends of the claw thorn rows can support the edge of a material bag, the problem that materials are prone to being left due to the fact that the corners of the material bag and the multi-layer material bag fall down is solved, the materials can be saved, and waste is avoided.

Description

Technical Field

[0001] The invention relates to the field of bag breaking machines, and more particularly to a bag breaking machine gripper. Background Art

[0002] There are many bagged materials in the chemical, food, printing and dyeing industries that need to be broken into bags for feeding. The common bag breaking machine grippers on the market penetrate from both sides of the bag and flip it inside. This gripper works well for single-layer bags, but if it encounters double-layer bags, such as an outer woven bag and an inner PE bag (the bags on both sides are separately detachable), it is difficult to grab the four corners of the bag during the bag breaking process (the inner PE bag may detach during the grabbing process), and there is a problem of residual material at the four corners of the bag, wasting materials.

[0003] Therefore, new solutions need to be proposed to solve this problem. Summary of the invention

[0004] In view of the shortcomings of the prior art, the present invention aims to provide a bag breaking machine gripper, which solves the problem that materials are easily left at the four corners of multi-layer bags during the bag breaking process. When the bag breaking machine grabs the bag, the claws penetrate from the middle of the bag, turn to the outside of the bag, support the four corners of the bag, and make less materials remain when the bag is broken and shaken, reducing waste.

[0005] The above technical purpose of the present invention is achieved through the following technical solutions: a bag breaking machine gripper, comprising a bag grabbing part and a shaking part, the bag grabbing part comprising a bag returning assembly, the bag grabbing part comprising a support plate, two claw thorn rows and two claw thorn rotating cylinders, the two claw thorn rows are both located below the support plate, the two claw thorn rows are both rotatably connected to the support plate and the connection points are located at both ends of the support plate, the claw thorn rotating cylinders are used to drive the claw thorn rows to rotate, and the claw tips of the two claw thorn rows face back to back after rotation.

[0006] Furthermore, the two claw thorn rotating cylinders are fixed above the bracket plate through the first bracket, a flip rod is provided on the claw thorn row, the claw thorn rotating cylinder is rotatably connected to the claw thorn row through a connecting shaft, the claw thorn rotating cylinder passes through the bracket plate and is connected to the flip rod, the output shaft of the claw thorn rotating cylinder is rotatably connected to the flip rod through the connecting shaft, and the connecting shaft between the output shaft of the claw thorn rotating cylinder and the flip rod is closer to the middle of the bracket plate than the connecting shaft between the claw thorn rotating cylinder and the first bracket.

[0007] Furthermore, a limit plate is provided on the bracket plate, and the limit plate is used to limit the maximum rotation angle of the claw thorn row.

[0008] Furthermore, the shaking part includes a shaking cage, a second bracket is provided at one end of the shaking cage, and a rotating connecting frame is provided at the other end, a shaking cylinder is rotatably connected to the second bracket, an output end of the shaking cylinder is rotatably connected to the bracket plate, and the rotating connecting frame is rotatably connected to the bracket plate.

[0009] Furthermore, the shaking part also includes a flange connecting plate for fixing the gripper of the bag breaking machine, and the shaking cage frame of the flange connecting plate and the flange connecting plate are connected by a shock-absorbing spring.

[0010] Furthermore, the bag-returning assembly includes a bag-returning plate and a push plate cylinder for driving the bag-returning plate to move linearly, and both ends of the bag-returning plate are connected to the lower surface of the bracket plate through guide rods.

[0011] Furthermore, the claw thorn row includes a main rod, both ends of which are rotatably connected to the bracket plate, and a plurality of claw thorn heads are arranged on the main rod along the length direction of the main rod, and the arrangement density of the claw thorn heads located at both ends of the main rod is greater than the arrangement density of the claw thorn heads located in the middle of the main rod.

[0012] Furthermore, the bag breaking machine gripper includes an initial state, a bag holding state, a shaking state, and a bag withdrawing state in sequence, and the bag breaking machine gripper cycles through the four states in sequence when working continuously.

[0013] In summary, the present invention has the following beneficial effects: (1) Reduce material waste and save costs.

[0014] (2) Easy replacement and maintenance. The bag breaking machine gripper can be quickly disassembled and assembled through the flange connecting plate.

[0015] (3) Reduce the time of material shaking after bag breaking.

[0016] (4) The problem of residual materials in the four corners of multi-layer bags during bag breaking has been solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a cross-sectional view of the present invention; Figure 2 It is a schematic diagram of the structure of the present invention in an initial state; Figure 3 It is a schematic diagram of the structure of the present invention in a bag-supporting state; Figure 4 It is a schematic diagram of the structure of the present invention in a shaking state; Figure 5 It is a schematic diagram of the structure of the present invention in the bag-returning state.

[0018] In the figure: 1. bracket plate; 2. claw thorn row; 3. claw thorn rotating cylinder; 4. first bracket; 5. flip rod; 6. limit plate; 7. shaking cage; 8. second bracket; 9. rotating connecting frame; 10. flange connecting plate; 11. shock-absorbing spring; 12. bag return plate; 13. push plate cylinder; 14. guide rod; 15. main rod; 16. claw thorn head; 17. shaking cylinder. DETAILED DESCRIPTION

[0019] The present invention is described in detail below in conjunction with the accompanying drawings and embodiments.

[0020] Embodiment: A bag breaking machine gripper, such as Figure 1 As shown, it includes a bag grabbing part and a shaking part. The bag grabbing part includes a bag returning assembly. The bag grabbing part includes a bracket plate 1, two claw thorn rows 2 and two claw thorn rotating cylinders 3. The two claw thorn rows 2 are both located below the bracket plate 1. The two claw thorn rows 2 are both rotatably connected to the bracket plate 1 and the connection is located at both ends of the bracket plate 1. The claw thorn rotating cylinder 3 is used to drive the claw thorn row 2 to rotate. After the two claw thorn rows 2 rotate, the claw tips of the two claw thorn rows 2 face back to back. When grabbing, the two claws penetrate from the middle of the material bag, and then the claw thorn rotating cylinder 3 drives the two claws to rotate, and the two claw thorn rows 2 are turned outward, so the tip part of the claw thorn row 2 will support the edge of the material bag, avoiding the problem of residual material caused by the corners of the material bag and the multi-layer material bag falling down, which can save materials and avoid waste.

[0021] The two claw thorn rotating cylinders 3 are fixed above the bracket plate 1 through the first bracket 4, and a flip rod 5 is arranged on the claw thorn row 2. The claw thorn rotating cylinder 3 is rotatably connected with the claw thorn row 2 through a connecting shaft. The claw thorn rotating cylinder 3 passes through the bracket plate 1 and is connected with the flip rod 5. The output shaft of the claw thorn rotating cylinder 3 is rotatably connected with the flip rod 5 through a connecting shaft. Since the connecting shaft between the output shaft of the claw thorn rotating cylinder 3 and the flip rod 5 is closer to the middle part of the bracket plate 1 than the connecting shaft between the claw thorn rotating cylinder 3 and the first bracket 4, when the output shaft of the claw thorn rotating cylinder 3 is extended, the claw thorn row 2 can be turned outward. A limiting plate 6 is arranged on the bracket plate 1, and the limiting plate 6 is used to limit the maximum rotation angle of the claw thorn row 2 to avoid excessive flipping of the claw thorn row 2.

[0022] The shaking part includes a shaking cage 7, one end of the shaking cage 7 is provided with a second bracket 8, and the other end is provided with a rotating connecting frame 9, the second bracket 8 is rotatably connected to a shaking cylinder 17, the output end of the shaking cylinder 17 is rotatably connected to the bracket plate 1, the rotating connecting frame 9 is rotatably connected to the bracket plate 1, and the reciprocating motion of the output end of the shaking cylinder 17 can realize the swing of the bracket plate 1, which can better avoid material residue.

[0023] The shaking part also includes a flange connecting plate 10 for fixing the gripper of the bag breaking machine. The flange connecting plate 10 is connected to the shaking cage frame 7 and the flange connecting plate 10 through a shock-absorbing spring 11. The flange connecting plate 10 can be connected to the industrial robot. The shock-absorbing spring 11 can reduce the vibration of the shaking part transmitted to the industrial robot, reduce mechanical vibration, and increase mechanical life.

[0024] The bag returning assembly includes a bag returning plate 12 and a push plate cylinder 13 for driving the bag returning plate 12 to move linearly. Both ends of the bag returning plate 12 are connected to the lower surface of the bracket plate 1 through guide rods 14. The operation of the push plate cylinder 13 can cause the material bags pierced by the claw piercing row 2 to be detached.

[0025] The claw thorn row 2 includes a main rod 15, both ends of which are rotatably connected to the bracket plate 1, and a plurality of claw thorn heads 16 are arranged on the main rod 15 along the length direction of the main rod 15. The arrangement density of the claw thorn heads 16 located at both ends of the main rod 15 is greater than the arrangement density of the claw thorn heads 16 located in the middle of the main rod 15.

[0026] The bag breaker gripper includes an initial state, a bag holding state, a shaking state, and a bag retreat state in sequence. The bag breaker gripper cycles through the four states in sequence when working continuously. When the bag breaker gripper is in operation, it is first in the initial state. At this time, the tip of the claw piercing row 2 is vertically downward, the push plate cylinder 13 is retracted, and the shaking cylinder 17 stops running. After the claw piercing row 2 pierces the material bag, it enters the bag holding state, the claw piercing rotating cylinder 3 runs, the claw piercing row 2 flips outward, and the tip part of the claw piercing row 2 will support the edge of the material bag to ensure the stability of the edge of the material bag. Then it enters the shaking state, the shaking cylinder 17 runs, the bracket plate 1 swings back and forth, and finally enters the bag retreat state, the push plate cylinder 13 runs, and the bag retreat plate 12 pushes the material bag down.

[0027] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A bag breaking machine gripper, comprising a bag grabbing part and a shaking part, wherein the bag grabbing part comprises a bag returning component, characterized in that: The bag grabbing part comprises a support plate (1), two claw thorn rows (2) and two claw thorn rotating cylinders (3); the two claw thorn rows (2) are both located below the support plate (1); the two claw thorn rows (2) are both rotatably connected to the support plate (1) and the connection points are located at both ends of the support plate (1); the claw thorn rotating cylinders (3) are used to drive the claw thorn rows (2) to rotate; after the two claw thorn rows (2) rotate, the claw tips of the two claw thorn rows (2) face away from each other.

2. The bag breaking machine gripper according to claim 1, characterized in that: The two claw thorn rotating cylinders (3) are fixed above the bracket plate (1) via a first bracket (4); a flip rod (5) is provided on the claw thorn row (2); the claw thorn rotating cylinder (3) is rotatably connected to the claw thorn row (2) via a connecting rotating shaft; the claw thorn rotating cylinder (3) passes through the bracket plate (1) and is connected to the flip rod (5); the output shaft of the claw thorn rotating cylinder (3) is rotatably connected to the flip rod (5) via the connecting rotating shaft; the connecting rotating shaft between the output shaft of the claw thorn rotating cylinder (3) and the flip rod (5) is closer to the middle of the bracket plate (1) than the connecting rotating shaft between the claw thorn rotating cylinder (3) and the first bracket (4).

3. A bag breaking machine gripper according to claim 2, characterized in that: A limit plate (6) is provided on the support plate (1), and the limit plate (6) is used to limit the maximum rotation angle of the claw thorn row (2).

4. The bag breaking machine gripper according to claim 1, characterized in that: The shaking part comprises a shaking cage (7), one end of the shaking cage (7) is provided with a second bracket (8), and the other end is provided with a rotating connecting frame (9), the second bracket (8) is rotatably connected to a shaking cylinder (17), the output end of the shaking cylinder (17) is rotatably connected to the bracket plate (1), and the rotating connecting frame (9) is rotatably connected to the bracket plate (1).

5. The bag breaking machine gripper according to claim 4, characterized in that: The shaking part further comprises a flange connecting plate (10) for fixing the gripper of the bag breaking machine, and the shaking cage frame (7) of the flange connecting plate (10) and the flange connecting plate (10) are connected via a shock absorbing spring (11).

6. The bag breaking machine gripper according to claim 1, characterized in that: The bag-returning assembly comprises a bag-returning plate (12) and a push plate cylinder (13) for driving the bag-returning plate (12) to move linearly, and both ends of the bag-returning plate (12) are connected to the lower surface of the bracket plate (1) via guide rods (14).

7. The bag breaking machine gripper according to claim 1, characterized in that: The claw thorn row (2) comprises a main rod (15), the two ends of the main rod (15) are rotatably connected to the bracket plate (1), and a plurality of claw thorn heads (16) are arranged on the main rod (15) along the length direction of the main rod (15), and the arrangement density of the claw thorn heads (16) located at the two ends of the main rod (15) is greater than the arrangement density of the claw thorn heads (16) located in the middle of the main rod (15).

8. The bag breaking machine gripper according to claim 1, characterized in that: The bag breaking machine gripper comprises an initial state, a bag holding state, a shaking state, and a bag withdrawing state in sequence, and the bag breaking machine gripper cycles in the four states in sequence when working continuously.

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