Bag opening and opening mechanism
By introducing electric heating wire sealing and fixture components into the bag open structure, the problems of easy folding of the film and displacement of the packaging bag are solved, reducing suction cup damage, improving the reliability of the bag open and the stability of the packaging bag.
Patent Information
- Application Number
- CN202421110312.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-21
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-05-21
AI Technical Summary
In the existing bag opening structure, the film is prone to wrinkle, causing the bag opening to fail, the packaging bag is easily displaced or broken during the filling process, and it is easy to be damaged by relying on the suction cup to resist friction.
A bag opening mechanism including a bag edge sealing mechanism, a film tensioning mechanism and a propulsion component were designed. The film was sealed and cut by an electric heating wire, and a clamp and cylinder assembly were used to prevent the packaging bag from shifting and breaking, and through Fixtures and fixture assemblies reduce friction burden on the suction cup.
It effectively prevents bag opening failure caused by film wrinkling, prevents packaging bags from shifting and breaking, reduces suction cup damage, and improves the reliability of bag opening and stability of packaging bags.
Smart Images
Figure CN222203084U_ABST
Abstract
Description
Technical Field
[0001] The utility model provides a bag opening and stretching mechanism, belonging to the technical field of bag opening and stretching of packaging bags. Background Art
[0002] When packaging materials in a packaging bag, it is usually necessary to use a bag opening structure to open the packaging bag. Most existing bag opening structures use a suction cup on the upper and lower sides to suck the film for bag opening. However, because the film is too thin, the upper and lower layers of the film are wrinkled during the suction process of the suction cup, which can easily cause vacuum leakage and eventually lead to bag opening failure. Most existing bag opening structures rely on suction cups to suck the film, and then extend the tightening component into the inner bag of the packaging bag to tighten the packaging bag. The suction cup and the tightening component jointly stabilize the packaging bag to prevent the material from scratching the packaging bag when filling the material, causing the packaging bag to shift. However, if the bag is stretched too tight, it is easy to break the bag with the sealed side. If only the suction cup is relied on to resist the friction during the filling process, the suction cup is easily damaged.
[0003] Based on this, the utility model provides a bag opening and propping mechanism. Utility Model Content
[0004] The technical problems solved by the utility model are: the film is prone to wrinkles during the suction cup adsorption process, resulting in bag opening failure; the material and the packaging bag are scratched, causing the packaging bag to shift, and the bag is stretched too tight, which is easy to break the bag with sealed sides; if the suction cup is only relied on to resist friction during the filling process, the suction cup is easily damaged.
[0005] In order to solve the technical problem, the technical solution provided by the utility model is: a bag opening and stretching mechanism, including a bag opening and stretching mechanism, a bag making and sealing mechanism is provided on one side of the bag opening and stretching mechanism, a film tensioning mechanism is provided on one side of the bag making and sealing mechanism, the bag opening and stretching mechanism includes a film clamp moving assembly, a film clamp assembly is provided on the top of the film clamp moving assembly, a bag opening auxiliary sheet assembly is provided on one side wall of the film clamp assembly, a bag opening assembly is provided on one side of the film clamp assembly, and a stretching assembly is arranged on one side of the bag opening assembly, the stretching assembly includes an advance and retreat cylinder, a packaging bag stretching sheet assembly is provided on one side of the advance and retreat cylinder, and a bagging clamp assembly is arranged on the outside of the packaging bag stretching sheet assembly.
[0006] Furthermore, the bag opening component includes a lower suction cup lift and an upper suction cup lift arranged above the lower suction cup lift, a lower suction cup is provided at the top of the lower suction cup lift, a bag opening cylinder is provided at the bottom of the upper suction cup lift, and an upper suction cup is provided at the bottom of the bag opening cylinder.
[0007] Furthermore, the film tensioning mechanism is provided with film conveying rollers, and films are provided between the film conveying rollers.
[0008] Furthermore, the bag making and sealing edge mechanism includes a bag making partition arranged on the inner side of the film, a heating wire bottom seal arranged on the lower side of the bag making partition, and a heating wire lift arranged on the upper side of the bag making partition and coordinated with the heating wire bottom seal, and a heating wire is provided on the heating wire lift.
[0009] Beneficial effects of the utility model:
[0010] 1. During the bag making process of the equipment, a piece of iron bag opening auxiliary sheet is first inserted between the two layers of film to solve the problem that the film is wrinkled during the suction cup adsorption process, which easily leads to bag opening failure;
[0011] 2. After the equipment opens the bag, a bag filling clamp assembly is installed on the outside of the bag opening piece assembly. The bag opening piece assembly and the bag filling clamp assembly form a clamp to clamp the bag, which can effectively prevent the bag from shifting during the filling process. It solves the problem that the bag is over-tightened by the bag opening piece assembly, resulting in the bursting of the bag with the sealed side, and solves the problem that the suction cup is easily damaged due to the friction during the filling process. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a structural schematic diagram of the utility model.
[0013] Figure 2 This is a plan view of the utility model. Figure 1 .
[0014] Figure 3 This is a plan view of the utility model. Figure 2 .
[0015] Figure 4 This is a plan view of the utility model. Figure 3 .
[0016] 1. Heating wire; 2. Bag opening auxiliary sheet assembly; 3. Film clamp assembly; 4. Film clamp moving assembly; 5. Heating wire bottom seal; 6. Heating wire lifting; 7. Lower suction cup lifting; 8. Upper suction cup lifting; 9. Bag opening cylinder; 10. Upper suction cup; 11. Lower suction cup; 12. Advance and retreat cylinder; 13. Packaging bag opening sheet assembly; 14. Bagging clamp assembly; 15. Film conveying roller; 16. Bag making partition; 17. Film; 18. Bag opening and opening mechanism; 19. Bag making and edge sealing mechanism; 20. Film tensioning mechanism; 21. Bag opening assembly; 22. Opening assembly. DETAILED DESCRIPTION
[0017] The utility model is further described below in conjunction with the accompanying drawings.
[0018] According to the attached Figure 1 , 2, 3: The utility model provides a bag opening and stretching mechanism: including a bag opening and stretching mechanism 18, a bag making and sealing mechanism 19 is provided on one side of the bag opening and stretching mechanism 18, a film tensioning mechanism 20 is provided on one side of the bag making and sealing mechanism 19, a film conveying roller 15 is provided on the film tensioning mechanism 20, a film 17 is provided between the film conveying rollers 15, the bag making and sealing mechanism 19 includes a bag making partition 16 arranged on the inner side of the film 17, a heating wire bottom seal 5 arranged on the side below the bag making partition 16, and a heating wire lifting 6 arranged on the side above the bag making partition 16 and cooperating with the heating wire bottom seal 5, a heating wire 1 is provided on the heating wire lifting 6, and the heating wire 1 is continuously heated when the machine is turned on, and the heating wire bottom seal 5 is extended and the heating wire lifting 6 is lowered, so that the heating wire 1 and the heating wire bottom seal 5 are pressed against each other, so that the film can be sealed and cut, and the bag opening and stretching mechanism 18 includes A film clamp moving component 4 is provided with a film clamp component 3 on the top of the film clamp moving component 4, a bag opening auxiliary sheet component 2 is provided on one side wall of the film clamp component 3, a bag opening component 21 is provided on one side of the film clamp component 3, and a stretching component 22 is provided on one side of the bag opening component 21. When the machine is turned on, two layers of film 17 are placed on the upper and lower sides of the bag making partition 16 so that the bag opening auxiliary sheet component 2 can be smoothly loaded. The bag opening auxiliary sheet component 2 is loaded into the upper and lower two layers of bag making partitions 16, and the film clamp component 3 clamps the upper and lower two layers of film 17. The film clamp moving component 4 drives the film clamp component 3 and the bag opening auxiliary sheet component 2 to move a settable distance to the bag making width. While moving, the film conveying roller 15 clamps the film 17 and rotates at the same linear speed as the film clamp moving component 4 to prevent the film 17 from being too fast and being torn by the film clamp component 3.
[0019] According to the attached Figure 1 , 4As shown: the stretching component 22 includes an advance and retreat cylinder 12, one side of the advance and retreat cylinder 12 is provided with a packaging bag stretching piece component 13, and a bagging clamp component 14 arranged on the outside of the packaging bag stretching piece component 13; the bag opening component 21 includes a lower suction cup lift 7, an upper suction cup lift 8 arranged above the lower suction cup lift 7, a lower suction cup 11 is provided on the top of the lower suction cup lift 7, a bag opening cylinder 9 is provided at the bottom of the upper suction cup lift 8, and an upper suction cup 10 is provided at the bottom of the bag opening cylinder 9; the film clamp moving component 4 drives the film clamp component 3 and the bag opening auxiliary piece component 2 to continue to move the packaging bag with the sealed side to the bag opening station, and the lower suction cup 11 is driven to rise by the lower suction cup lift 7, and at the same time, the upper suction cup lift 8 and The bag opening cylinder 9 drives the upper suction cup 10 to descend, and the upper suction cup 10 and the lower suction cup 11 suck the packaging bag with sealed sides, and the advance and retreat cylinder 12 drives the packaging bag opening piece assembly 13 and the bagging clamp assembly 14 to move, so that the packaging bag opening piece assembly 13 extends into the packaging bag, the bagging clamp assembly 14 is placed on the outside of the packaging bag, and the packaging bag opening piece assembly 13 moves left and right to achieve the purpose of opening the bag, which can effectively prevent the packaging bag from shifting during the filling process, solves the problem that the packaging bag relies on the packaging bag opening piece assembly 13 to be over-tightened, resulting in the bursting of the bag with sealed sides, and solves the problem that the suction cup is easily damaged due to the friction during the filling process.
[0020] How it works
[0021] Before starting the machine, two layers of film 17 are placed on the upper and lower sides of the bag-making partition 16 so that the bag-opening auxiliary sheet assembly 2 can be smoothly loaded. The bag-opening auxiliary sheet assembly 2 is loaded into the upper and lower two layers of bag-making partitions 16. The film clamp assembly 3 clamps the upper and lower two layers of film 17. The film clamp moving assembly 4 drives the film clamp assembly 3 and the bag-opening auxiliary sheet assembly 2 to move a settable distance of the bag-making width. While moving, the film conveying roller 15 clamps the film 17 and rotates at the same linear speed as the film clamp moving assembly 4 to prevent the film 17 from speeding up. The film is too fast and is torn by the film clamp assembly 3. The heating wire bottom seal 5 is extended and the heating wire lifting 6 is lowered, so that the heating wire 1 and the heating wire bottom seal 5 are pressed against each other to seal and cut the film. The heating wire bottom seal 5 and the heating wire lifting 6 return to their initial positions. The film clamp moving assembly 4 drives the film clamp assembly 3 and the bag opening auxiliary sheet assembly 2 to seal the side of the packaging bag and continue to move to the bag opening station. The lower suction cup 11 is driven up by the lower suction cup lifting 7. At the same time, the upper suction cup lifting 8 and the bag opening cylinder 9 drive the upper suction cup 10 to descend. The upper suction cup 10 and the lower suction cup 11 sucks the sealed side of the packaging bag, the bag opening cylinder 9 returns to the initial position, the position of the bag opening cylinder 9 is adjustable to control the distance the packaging bag is opened, the bag opening auxiliary sheet assembly 2 and the film clamp assembly 3 return to the initial position, the film clamp assembly 3 drives the bag opening auxiliary sheet assembly 2 and the film clamp assembly 3 to return to the initial position, and the next cycle of bag making is carried out, the advance and retreat cylinder 12 drives the packaging bag opening sheet assembly 13 and the bagging clamp assembly 14 to move, so that the packaging bag opening sheet assembly 13 extends into the packaging bag, and the bagging clamp assembly 14 is placed on the outside of the packaging bag. The stretching piece assembly 13 moves left and right to achieve the purpose of stretching, the lower suction cup lifting 7, the upper suction cup lifting 8, the upper suction cup 10, and the lower suction cup 11 return to the initial position, and the bagging clamp assembly 14 cooperates with the packaging bag stretching piece assembly 13 to clamp the stretched packaging bag, waiting for the filling to be loaded. After the filling is completed, the bagging clamp assembly 14 returns to the initial position, and the advance and retreat cylinder 12 drives the packaging bag stretching piece assembly 13 and the bagging clamp assembly 14 to return to the initial position. The packaging bag stretching piece assembly 13 returns to the initial position, waiting for the next cycle of bag opening.
[0022] During the bag making process of the equipment, the utility model first inserts a piece of iron bag opening auxiliary sheet into two layers of film 17, so as to solve the problem that the film is wrinkled during the suction cup adsorbing the film, which easily leads to the failure of bag opening. After the equipment finishes bag opening, the iron bag opening auxiliary sheet is automatically taken out of the packaging bag by the equipment and put into a new bag making film, so that it can be recycled. After the equipment opens the bag, a bag filling clamp component 14 is installed on the outer side of the packaging bag opening sheet component 13, and the packaging bag opening sheet component 13 and the bag filling clamp component 14 form a clamp to clamp the packaging bag, which can effectively prevent the packaging bag from shifting during the filling process, solves the problem that the packaging bag relies on the packaging bag opening sheet component 13 to be over-tightened, resulting in the bursting of the bag with the sealed side, and solves the problem that the suction cup is easily damaged due to the friction during the filling material.
[0023] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.
Claims
1. A bag opening and stretching mechanism, comprising a bag opening and stretching mechanism (18), a bag making and edge sealing mechanism (19) being provided on one side of the bag opening and stretching mechanism (18), a film tensioning mechanism (20) being provided on one side of the bag making and edge sealing mechanism (19), characterized in that: The bag opening and stretching mechanism (18) comprises a film clamp moving assembly (4), a film clamp assembly (3) is provided on the top of the film clamp moving assembly (4), a bag opening auxiliary sheet assembly (2) is provided on one side wall of the film clamp assembly (3), a bag opening assembly (21) is provided on one side of the film clamp assembly (3), and a stretching assembly (22) is arranged on one side of the bag opening assembly (21), the stretching assembly (22) comprises an advance and retreat cylinder (12), a packaging bag stretching sheet assembly (13) is provided on one side of the advance and retreat cylinder (12), and a bagging clamp assembly (14) is arranged on the outside of the packaging bag stretching sheet assembly (13).
2. A bag opening and stretching mechanism according to claim 1, characterized in that: The bag opening component (21) comprises a lower suction cup lift (7), an upper suction cup lift (8) arranged above the lower suction cup lift (7), a lower suction cup (11) being arranged at the top of the lower suction cup lift (7), a bag opening cylinder (9) being arranged at the bottom of the upper suction cup lift (8), and an upper suction cup (10) being arranged at the bottom of the bag opening cylinder (9).
3. The bag opening and stretching mechanism according to claim 1, characterized in that: The film tensioning mechanism (20) is provided with a film conveying roller (15), and a film (17) is provided between the film conveying rollers (15).
4. A bag opening and stretching mechanism according to claim 3, characterized in that: The bag making and edge sealing mechanism (19) comprises a bag making partition (16) arranged on the inner side of the film (17), a heating wire bottom seal (5) arranged on the lower side of the bag making partition (16), and a heating wire lift (6) arranged on the upper side of the bag making partition (16) and cooperating with the heating wire bottom seal (5), wherein the heating wire (1) is provided on the heating wire lift (6).