Packaging bag clamping mechanism

Abstract

The utility model relates to the field of clamping mechanisms, in particular to a packaging bag clamping mechanism which comprises a bottom plate, supporting rods are connected to the front side and the rear side of the top of the bottom plate in a bolting mode, a top plate is connected to the tops of the supporting rods in a bolting mode, a first electric cylinder is connected to the middle of the top of the top plate in a bolting mode, and the bottom of the first electric cylinder penetrates through the top plate to be connected with a shell in a bolting mode. A first fan is bolted to the right side of the top of the top plate, and the right side of the first fan communicates with a folded air pipe. A packaging bag is completely supported through air pressure, then a shell is vertically pushed to reset through a first electric cylinder, a reciprocating motor rotates again, a clamping block moves towards the inner side, the supported packaging bag is discharged, and the operation is repeated, so that the position of the clamping mechanism can be adjusted according to the change of the distance between the side edges of the packaging bag in the packaging process; the packaging bag is fixed by the clamping mechanism, the packaging bag is effectively and completely opened in an air pressure control mode, and the working efficiency of the clamping mechanism is improved.

Description

Technical Field

[0001] The utility model relates to the field of clamping mechanisms, in particular to a packaging bag clamping mechanism. Background Art

[0002] Bag packing is a common bagging method. The process is to open the bag, put the material into the bag, and then straighten the bag mouth for subsequent sealing operations.

[0003] After searching, a packaging bag clamping mechanism with application number CN202122878856.7 is disclosed, which specifically includes a supporting device, a first clamping device and a second clamping device; a feed port is arranged on the supporting device; the first clamping device includes a first elastic member, a first clamping member and a second clamping member, the first clamping device is arranged on the supporting device and located on one side below the feed port, and the first clamping device is used to clamp the first bag opening edge of the packaging bag; the second clamping device is arranged on the supporting device and located on the other side below the feed port. The above technical scheme delivers the packaging bag from bottom to top to the bottom of the feed port, the first clamping device can clamp the first bag opening edge of the packaging bag, the second clamping device can clamp the second bag opening edge of the packaging bag, and the bag opening of the packaging bag is opened, and the articles can enter the packaging bag through the feed port. The packaging bag clamping mechanism has a novel structure, simple operation, low cost, and is also convenient for later maintenance.

[0004] However, the above device still has certain defects. For example, if manual labor is used in the above process, a large amount of manpower is consumed, it is difficult to improve production efficiency, and poor packaging is likely to occur. Therefore, in the prior art, pneumatic clamping fingers and other clamping mechanisms are often used to clamp the sides of the packaging bag to facilitate filling. However, since the distance between the two sides of the packaging bag will change during the process of opening and straightening the packaging bag, the position of the clamping mechanism is required to be adjusted according to the change in the distance between the sides of the packaging bag.

[0005] Therefore, it is necessary to invent a packaging bag clamping mechanism to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide a packaging bag clamping mechanism which can effectively solve the above technical problems.

[0007] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a packaging bag clamping mechanism comprises a bottom plate, the front and rear sides of the top of the bottom plate are bolted with support rods, the top of the support rods is bolted with a top plate, the middle part of the top of the top plate is bolted with a first electric cylinder, the bottom of the first electric cylinder passes through the top plate and is bolted with a shell, the right side of the top of the top plate is bolted with a first fan, the right side of the first fan is connected with a folding air duct, the bottom of the folding air duct is connected with an exhaust duct, the front and rear sides of the inner cavity of the shell are slidably connected with linkage blocks, the middle part of the left side of the shell is bolted with a reciprocating motor, the center of the inner side of the inner cavity of the shell is rotatably connected with a winding roller through a bearing, and the left side of the winding roller passes through the shell and is bolted to the output end of the reciprocating motor, the right side of the linkage block is bolted with a fixing rod, the other end of the fixing rod is hinged with a mounting rod, and the other end of the mounting rod is hinged with a clamping block.

[0008] Preferably, an anti-skid pad is attached to the inner side of the clamping block, and adsorption holes are arranged on the inner side of the clamping block. The anti-skid pad improves the damping effect of the inner side of the clamping block, and the packaging bag is adsorbed and fixed by the suction force generated on the surface of the adsorption holes.

[0009] Preferably, a second fan is bolted to the outer side of the fixing rod, and an exhaust pipe is connected to the right side of the second fan, and the other end of the exhaust pipe is connected to the bottom of the clamping block, so that the second fan can extract the air in the inner cavity of the clamping block through the exhaust pipe, thereby generating suction on the surface of the adsorption hole.

[0010] Preferably, a second electric cylinder is hinged on the top of the fixing rod, and the other end of the electric cylinder is hinged to the top of the mounting rod, and the second electric cylinder is used as a driving source to push the mounting rod to move in an arc shape on the right side of the fixing rod.

[0011] Preferably, a pull rope is wound around the surface of the winding roller, a connecting groove is opened on the surface of the linkage block, and the two ends of the pull rope are respectively connected to the surfaces of the connecting grooves on both sides, the linkage block and the pull rope are connected and fixed through the connecting grooves, and the rotation of the winding roller drives the linkage blocks on both sides to move horizontally through the pull rope.

[0012] Preferably, slide grooves are provided at the front and rear of the left side of the inner cavity of the shell, a slider is slidably connected to the inner side of the slide groove, and the right side of the slider is bolted to the left side of the linkage block, and the movement path of the linkage block is limited by the slider moving horizontally in the slide groove.

[0013] Preferably, a limiting groove is opened on the right side of the inner cavity of the shell, and limiting rods are bolted to the front and rear of the limiting groove, the surface of the limiting rod is slidably connected to the inner side of the fixing rod, and the moving path of the fixing rod is fixed by the limiting groove and the limiting rod.

[0014] Preferably, a spring is sleeved on the surface of the limiting rod, and the elastic force of the spring itself is used to assist the fixing rod in returning to its original position after moving inward.

[0015] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0016] 1. The packaging bag is fully propped up by air pressure, and then the shell is pushed vertically to reset by the first electric cylinder. The reciprocating motor rotates again, and the clamping block moves inward to unload the opened packaging bag. In this reciprocating motion, the clamping mechanism can adjust its position according to the change in the side distance of the packaging bag during the packaging process, ensuring that the clamping mechanism fixes the packaging bag. The packaging bag is effectively fully propped up by air pressure control, thereby improving the working efficiency of the clamping mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0018] Figure 1 It is a front view of the overall structure of the utility model;

[0019] Figure 2 It is a front cross-sectional view of the overall structure of the utility model;

[0020] Figure 3 It is a top view of the shell and the clamping block connection structure of the utility model;

[0021] Figure 4 It is a top view of the internal connection structure of the shell of the utility model;

[0022] Figure 5 For the utility model Figure 4 A magnified view of the structure in the middle.

[0023] Description of reference numerals:

[0024] 1. Bottom plate; 2. Support rod; 3. Top plate; 4. First electric cylinder; 5. Casing; 6. First fan; 7. Folding air duct; 8. Exhaust duct; 9. Linkage block; 10. Reciprocating motor; 11. Winding roller; 12. Fixing rod; 13. Mounting rod; 14. Clamping block; 15. Anti-skid pad; 16. Adsorption hole; 17. Second fan; 18. Exhaust duct; 19. Second electric cylinder; 20. Pull rope; 21. Connecting groove; 22. Slide groove; 23. Sliding block; 24. Limiting groove; 25. Limiting rod; 26. Spring. DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0026] The utility model provides Figure 1-5 The packaging bag clamping mechanism shown includes a bottom plate 1, support rods 2 are bolted to the front and rear sides of the top of the bottom plate 1, a top plate 3 is bolted to the top of the support rod 2, a first electric cylinder 4 is bolted to the middle of the top of the top plate 3, a shell 5 is bolted to the bottom of the first electric cylinder 4 through the top plate 3, a first fan 6 is bolted to the right side of the top of the top plate 3, a folding air duct 7 is connected to the right side of the first fan 6, an exhaust duct 8 is connected to the bottom of the folding air duct 7, linkage blocks 9 are slidably connected to the front and rear sides of the inner cavity of the shell 5, a reciprocating motor 10 is bolted to the middle of the left side of the shell 5, a winding roller 11 is rotatably connected to the center of the inner side of the inner cavity of the shell 5 through a bearing, and the left side of the winding roller 11 passes through the shell 5 and is bolted to the output end of the reciprocating motor 10, a fixing rod 12 is bolted to the right side of the linkage block 9, a mounting rod 13 is hinged to the other end of the fixing rod 12, and a clamping block 14 is hinged to the other end of the mounting rod 13.

[0027] The inner side of the clamping block 14 is attached with an anti-skid pad 15 , and the inner side of the clamping block 14 is arranged with adsorption holes 16 . The anti-skid pad 15 improves the damping effect of the inner side of the clamping block 14 , and the packaging bag is adsorbed and fixed by the suction force generated on the surface of the adsorption holes 16 .

[0028] The outer side of the fixing rod 12 is bolted with a second fan 17, and the right side of the second fan 17 is connected to an exhaust pipe 18, and the other end of the exhaust pipe 18 is connected to the bottom of the clamping block 14, so that the second fan 17 can extract the air in the inner cavity of the clamping block 14 through the exhaust pipe 18, so that suction is generated on the surface of the adsorption hole 16.

[0029] A second electric cylinder 19 is hinged on the top of the fixing rod 12 , and the other end of the electric cylinder is hinged on the top of the installation rod 13 . The second electric cylinder 19 is used as a driving source to push the installation rod 13 to move in an arc shape on the right side of the fixing rod 12 .

[0030] A pull rope 20 is wound around the surface of the winding roller 11, a connecting groove 21 is opened on the surface of the linkage block 9, and the two ends of the pull rope 20 are respectively connected to the surfaces of the connecting grooves 21 on both sides. The linkage block 9 is connected and fixed to the pull rope 20 through the connecting grooves 21, and the rotation of the winding roller 11 drives the linkage blocks 9 on both sides to move horizontally through the pull rope 20.

[0031] Slide grooves 22 are provided at the front and back of the left side of the inner cavity of the shell 5, and a slider 23 is slidably connected to the inner side of the slide groove 22, and the right side of the slider 23 is bolted to the left side of the linkage block 9. The slider 23 moves horizontally in the slide groove 22 to limit the moving path of the linkage block 9.

[0032] A limiting groove 24 is provided on the right side of the inner cavity of the shell 5, and limiting rods 25 are bolted to the front and rear of the limiting groove 24. The surface of the limiting rod 25 is slidably connected to the inner side of the fixing rod 12, and the moving path of the fixing rod 12 is fixed by the limiting groove 24 and the limiting rod 25.

[0033] A spring 26 is sleeved on the surface of the limiting rod 25 , and the spring 26 assists the fixing rod 12 in returning to its original position after moving inwards through its own elastic force.

[0034] Refer to the instruction manual Figure 1-5 Working principle: The reciprocating motor 10 drives the winding roller 11 to rotate, so that the pull rope 20 on the surface of the winding roller 11 rotates and wraps around the surface of the winding roller 11, and the pull rope 20 pulls the linkage blocks 9 on both sides toward one side of the winding roller 11. The linkage block 9 synchronously drives the fixed rod 12 to move during the movement, thereby moving the clamping block 14 inward, and cooperating with the active push and pull of the second electric cylinder 19, so that the clamping block 14 clamps the packaging bag inside it. Due to the different sizes and materials of the packaging bags, the bags may fall after clamping. At this time, only the second fan 17 needs to be turned on, so that the second fan 17 draws out the air in the inner cavity of the clamping block 14 through the exhaust pipe 18, so that suction is generated at the inner adsorption hole 16 of the clamping block 14, and the two sides of the packaging bag are effectively adsorbed on the inner side of the clamping block 14. At this time, according to the maximum expansion distance of the packaging bag, the reverse The reciprocating motor 10 expands the bag mouth of the packaging bag to both sides by adsorption expansion, and then turns on the first electric cylinder 4, so that the first electric cylinder 4 drives the outer shell 5 to move vertically upward according to the support rod 2, so that the inner side of the expanded packaging bag is inserted into the exhaust pipe 8, and finally turns on the first fan 6, so that the first fan 6 draws in external air and outputs it to the surface of the exhaust pipe 8 through the folding air duct 7, and the packaging bag is fully propped up by air pressure, and then the outer shell 5 is vertically pushed to reset by the first electric cylinder 4, and the reciprocating motor 10 rotates again, and the clamping block 14 moves inward to unload the opened packaging bag. In this reciprocating manner, the clamping mechanism can adjust its position according to the change of the side distance of the packaging bag during the packaging process, thereby ensuring that the clamping mechanism fixes the packaging bag, and effectively fully opens the packaging bag by air pressure control, thereby improving the working efficiency of the clamping mechanism.

[0035] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A packaging bag clamping mechanism, comprising a bottom plate (1), characterized in that: The front and rear sides of the top of the bottom plate (1) are both bolted to support rods (2), the top of the support rods (2) is bolted to a top plate (3), the middle of the top of the top plate (3) is bolted to a first electric cylinder (4), the bottom of the first electric cylinder (4) passes through the top plate (3) and is bolted to a shell (5), the right side of the top of the top plate (3) is bolted to a first fan (6), the right side of the first fan (6) is connected to a folded air duct (7), the bottom of the folded air duct (7) is connected to an exhaust duct (8), the front of the inner cavity of the shell (5) is connected to a first fan (6), and the inner cavity of the shell (5) is connected to a first fan (6). Both rear sides are slidably connected with linkage blocks (9), a reciprocating motor (10) is bolted to the middle of the left side of the shell (5), a winding roller (11) is rotatably connected to the center of the inner side of the inner cavity of the shell (5) through a bearing, and the left side of the winding roller (11) passes through the shell (5) and is bolted to the output end of the reciprocating motor (10), and the right side of the linkage block (9) is bolted with a fixing rod (12), the other end of the fixing rod (12) is hinged with a mounting rod (13), and the other end of the mounting rod (13) is hinged with a clamping block (14).

2. A packaging bag clamping mechanism according to claim 1, characterized in that: The inner side of the clamping block (14) is attached with an anti-slip pad (15), and the inner side of the clamping block (14) is arranged with adsorption holes (16).

3. A packaging bag clamping mechanism according to claim 2, characterized in that: The outer side of the fixing rod (12) is bolted with a second fan (17), the right side of the second fan (17) is connected to an exhaust pipe (18), and the other end of the exhaust pipe (18) is connected to the bottom of the clamping block (14).

4. A packaging bag clamping mechanism according to claim 1, characterized in that: A second electric cylinder (19) is hingedly connected to the top of the fixing rod (12), and the other end of the electric cylinder is hingedly connected to the top of the installation rod (13).

5. The packaging bag clamping mechanism according to claim 1, characterized in that: A pull rope (20) is wound around the surface of the winding roller (11), a connection groove (21) is provided on the surface of the linkage block (9), and two ends of the pull rope (20) are respectively connected to the surfaces of the connection grooves (21) on both sides.

6. The packaging bag clamping mechanism according to claim 1, characterized in that: The left side of the inner cavity of the shell (5) is provided with a slide groove (22) at the front and rear, the inner side of the slide groove (22) is slidably connected with a slider (23), and the right side of the slider (23) is bolted to the left side of the linkage block (9).

7. The packaging bag clamping mechanism according to claim 1, characterized in that: A limiting groove (24) is provided on the right side of the inner cavity of the shell (5), and limiting rods (25) are bolted to the front and rear of the limiting groove (24), and the surface of the limiting rod (25) is slidably connected to the inner side of the fixing rod (12).

8. The packaging bag clamping mechanism according to claim 7, characterized in that: A spring (26) is sleeved on the surface of the limiting rod (25).

Images