Bag opening tidying mechanism
By designing a bag opening finishing mechanism and using a connecting rod mechanism to control the movement of the supporting claws, the problem of uneven bag openings is solved, stable finishing of the bag openings and efficient packaging are achieved, and production costs are reduced.
Patent Information
- Application Number
- CN202422394940.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-29
- Publication Date
- 2025-09-26
- Estimated Expiration
- 2034-09-29
AI Technical Summary
After filling, the existing automatic packaging machine cannot maintain a flat bag shape at the bag mouth, and is prone to wrinkles and misalignment, affecting the efficiency and quality of the sealing process.
A bag opening arrangement mechanism was designed, which included a support frame, a connecting frame, a mounting bracket and a bag-opening assembly. The movement of the supporting claws was controlled by a driving cylinder and a connecting rod mechanism, so that the claws kept the claw ends vertically downward during movement, which could stably open or close the bag opening and avoid wrinkles and dislocation.
The bag opening is stabilized, the packaging efficiency is improved, the wrinkles on the bag opening are avoided, the production cost is reduced, and the manual operation is replaced by mechanical equipment, which improves the work efficiency and equipment reliability.
Smart Images
Figure CN223384795U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of packaging equipment and relates to a bag opening arranging mechanism. Background Art
[0002] Automatic packaging machines are devices that automatically weigh, fill, and seal bulk materials, and are crucial for automated warehousing and logistics operations. After filling materials into bags, the bag openings must remain flat and straight before entering the sealing process (sewing or heat sealing). Because the density of the filled material can affect the bag opening, existing equipment uses a strut structure to maintain this flat opening. This cannot completely prevent wrinkles and misalignment, impacting the overall efficiency of the fully automatic packaging machine. Summary of the Invention
[0003] The purpose of the utility model is to overcome the deficiencies in the prior art, solve the problem of unsatisfactory bag opening arrangement during automatic sealing of packaging bags, and provide a bag opening arrangement mechanism.
[0004] In order to achieve the above objectives, the following technical solutions are adopted:
[0005] The bag opening sorting mechanism includes a supporting frame, a connecting frame, a mounting bracket and a bag supporting assembly. The two ends of the supporting frame are respectively provided with mounting brackets, and a connecting frame is provided between the mounting bracket and the supporting frame; the mounting brackets are respectively provided with corresponding bag supporting assemblies, and the bag supporting assembly includes a supporting claw, a driving cylinder and a connecting rod mechanism. The supporting claw is connected to the mounting bracket by the connecting rod mechanism, and the mounting bracket is provided with a driving cylinder. The piston rod of the driving cylinder is hinged to the active shaft of the connecting rod mechanism by a hinge plate.
[0006] Preferably, the connecting rod mechanism includes a driving shaft, a first rotating shaft, a second rotating shaft, a third rotating shaft, a first connecting plate and a second connecting plate, wherein both ends of the driving shaft are connected to the first rotating shaft by the first connecting plate; a second rotating shaft is provided on a mounting bracket on one side of the driving shaft, and both ends of the second rotating shaft are connected to the third rotating shaft by the second connecting plate;
[0007] The support claw is L-shaped as a whole, with a first connecting hole provided at the bent part of the support claw and a second connecting hole provided at one end of the support claw; a first sleeve that can cooperate with the first connecting hole is provided on the first rotating shaft, and a second sleeve that can cooperate with the second connecting hole is provided on the third rotating shaft.
[0008] Preferably, the first sleeve and the second sleeve are fixed to the first rotating shaft and the third rotating shaft respectively by using fixing pins.
[0009] Preferably, both ends of the driving shaft and the second rotating shaft are connected to the mounting bracket by bearings respectively.
[0010] Preferably, the claw ends of the supporting claws are rounded.
[0011] Preferably, connecting plates are respectively provided on the mounting brackets.
[0012] Preferably, a mounting rod is provided on the mounting bracket, and a cylinder support is hinged on the mounting rod.
[0013] Preferably, the support frame, the connecting frame and the mounting bracket are fixed by welding.
[0014] Compared with the prior art, the present invention has the following advantages:
[0015] The utility model utilizes a connecting rod mechanism so that the supporting claws can keep the claw ends in a vertical downward position during the movement, which is convenient for the opening operation of the packaging bag. When the supporting claws move closer to and away from the bag opening, it will not affect the state of the bag opening, so that the bag opening is stable, beautiful and wrinkle-free after being arranged, which is convenient for the packaging operation; mechanical equipment replaces manual labor, improves work efficiency and saves production costs; the utility model has a simple structure, low cost, easy installation, fast supporting claw action response and high reliability. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model.
[0017] Figure 2 It is a schematic diagram of the overall structure of the utility model.
[0018] Figure 3 It is a partial structural diagram of the utility model.
[0019] Figure 4 This is a schematic diagram of the supporting claw structure of the present utility model.
[0020] In the figure: 1. Support frame; 2. Connecting frame; 3. Mounting bracket; 4. Bag support assembly; 5. Support claw; 6. Driving cylinder; 7. Connecting rod mechanism; 8. Piston rod; 9. Active shaft; 10. First rotating shaft; 11. Second rotating shaft; 12. Third rotating shaft; 13. First connecting plate; 14. Second connecting plate; 15. First connecting hole; 16. Second connecting hole; 17. First sleeve; 18. Second sleeve; 19. Fixing pin; 20. Connecting plate; 21. Mounting rod; 22. Cylinder support; 23. Hinge plate. DETAILED DESCRIPTION
[0021] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.
[0022] like Figures 1-4 As shown, a bag opening arrangement mechanism includes a support frame 1, a connecting frame 2, a mounting bracket 3 and a bag support assembly 4. The mounting bracket 3 is provided at both ends of the support frame 1, and a connecting frame 2 is provided between the mounting bracket 3 and the support frame 1. The support frame 1 provides installation support for the mounting bracket 3, and the connecting frame 2 improves the connection strength between the support frame 1 and the mounting bracket 3;
[0023] The mounting brackets 3 are respectively provided with corresponding bag-stretching components 4, and the bag-stretching components 4 are used to stretch the bag opening into a straight line shape;
[0024] The bag-stretching assembly 4 includes a supporting claw 5, a driving cylinder 6 and a connecting rod mechanism 7. The supporting claw 5 is connected to the mounting bracket 3 by the connecting rod mechanism 7. The mounting bracket 3 is provided with a driving cylinder 6. The piston rod 8 of the driving cylinder 6 is hinged to the active shaft 9 of the connecting rod mechanism 7 by a hinge plate 23. When the driving cylinder 6 is working, it can use the hinge plate 23 to drive the connecting rod mechanism 7 to move, and the supporting claw 5 moves accordingly, so that the two supporting claws 5 move away from each other (opening the bag opening) or closer together (closing the bag opening after fully opening it, waiting for the next packaging bag to arrive at the bag-stretching station).
[0025] Furthermore, the connecting rod mechanism 7 includes a driving shaft 9, a first rotating shaft 10, a second rotating shaft 11, a third rotating shaft 12, a first connecting plate 13 and a second connecting plate 14. The two ends of the driving shaft 9 are respectively connected to the first rotating shaft 10 by the first connecting plate 13. When the driving shaft 9 rotates, the first connecting plate 13 drives the first rotating shaft 10 to swing.
[0026] A second rotating shaft 11 is provided on the mounting bracket 3 on one side of the driving shaft 9. The two ends of the second rotating shaft 11 are connected to the third rotating shaft 12 by means of second connecting plates 14. When the third rotating shaft 12 swings, it rotates around the second rotating shaft 11 by means of the second connecting plates 14.
[0027] The claw 5 is L-shaped as a whole. A first connecting hole 15 is provided at the bent portion of the claw 5, and a second connecting hole 16 is provided at one end of the claw 5. A first sleeve 17 is provided on the first rotating shaft 10 and can cooperate with the first connecting hole 15. The first sleeve 17 is fixedly mounted on the first rotating shaft 10. When the first rotating shaft 10 swings, the claw 5 swings accordingly.
[0028] The third rotating shaft 12 is provided with a second sleeve 18 that can cooperate with the second connecting hole 16. The second sleeve 18 is fixedly mounted on the third rotating shaft 12. When the first rotating shaft 10 moves, the third rotating shaft 12 is driven to move through the main part of the supporting claw 5. At the same time, the end of the supporting claw 5 moves accordingly, keeping the overall state of the entire supporting claw 5 unchanged when moving (the claw end is vertically downward).
[0029] Furthermore, the first sleeve 17 and the second sleeve 18 are fixed to the first rotating shaft 10 and the third rotating shaft 12 respectively by means of fixing pins 19. The fixing pins 19 make the first sleeve 17 and the first rotating shaft 10, and the second sleeve 18 and the second rotating shaft 12 become a whole.
[0030] Furthermore, both ends of the driving shaft 9 and the second rotating shaft 11 are connected to the mounting bracket 3 by bearings.
[0031] Furthermore, the claw ends of the supporting claws 5 are rounded so as not to damage the packaging bag and facilitate insertion into the bag opening.
[0032] Furthermore, the mounting brackets 3 are each provided with a connecting plate 20 , which facilitates the connection between the device and the packaging equipment.
[0033] Furthermore, a mounting rod 21 is provided on the mounting bracket 3 , a cylinder support 22 is hinged on the mounting rod 21 , and the end of the driving cylinder 22 is hinged between the cylinder support 22 and the mounting rod 21 .
[0034] Furthermore, the support frame 1, the connecting frame 2 and the mounting bracket 3 are fixed by welding, and the welding fixation ensures that the support frame 1, the connecting frame 2 and the mounting bracket 3 are firmly connected and no relative displacement occurs.
[0035] Working principle: When the utility model is in use, by driving the piston rod 8 of the cylinder 6 to extend, the driving shaft 9 is driven to rotate, and the driving shaft 9 uses the first connecting plate 13 to drive the first rotating shaft 10 to swing. When the first rotating shaft 10 swings, the main body of the claw 5 is used to drive the third rotating shaft 12 at the tail end of the claw 5 to move. At this time, due to the relationship between the second connecting plate 13, the third rotating shaft 12 swings around the second rotating shaft 11. In this moving state, the claw 5 keeps the claw end in a vertical downward state during the movement. When the corresponding two claws 5 move synchronously outward and away from each other, the bag opening can be opened. When the bag opening is opened, when the piston rod 8 of the cylinder 6 contracts, the two claws 5 move closer together, so that the state of the bag opening will not be affected when the claw 5 leaves the bag opening.
[0036] It is understood that the above embodiments are merely exemplary embodiments for illustrating the principles of the present invention, and the present invention is not limited thereto. Those skilled in the art may make various modifications and improvements without departing from the spirit and substance of the present invention, and such modifications and improvements are also considered to be within the scope of protection of the present invention.
Claims
1. A bag opening arrangement mechanism, comprising a support frame (1), a connecting frame (2), a mounting bracket (3) and a bag support assembly (4), characterized in that: Mounting brackets (3) are respectively provided at both ends of the support frame (1), and a connecting frame (2) is provided between the mounting bracket (3) and the support frame (1); the mounting brackets (3) are respectively provided with corresponding bag-supporting assemblies (4), and the bag-supporting assemblies (4) include a supporting claw (5), a driving cylinder (6) and a connecting rod mechanism (7); the supporting claw (5) is connected to the mounting bracket (3) by means of the connecting rod mechanism (7); the mounting bracket (3) is provided with a driving cylinder (6); and the piston rod (8) of the driving cylinder (6) is hinged to the driving shaft (9) of the connecting rod mechanism (7) by means of a hinge plate (23).
2. The bag opening arrangement mechanism according to claim 1, characterized in that: The connecting rod mechanism (7) comprises a driving shaft (9), a first rotating shaft (10), a second rotating shaft (11), a third rotating shaft (12), a first connecting plate (13) and a second connecting plate (14), wherein the two ends of the driving shaft (9) are connected to the first rotating shaft (10) by the first connecting plate (13); a second rotating shaft (11) is provided on the mounting bracket (3) on one side of the driving shaft (9), and the two ends of the second rotating shaft (11) are connected to the third rotating shaft (12) by the second connecting plate (14); The supporting claw (5) is L-shaped as a whole, a first connecting hole (15) is provided at the bent portion of the supporting claw (5), and a second connecting hole (16) is provided at one end of the supporting claw (5); a first sleeve (17) capable of cooperating with the first connecting hole (15) is provided on the first rotating shaft (10), and a second sleeve (18) capable of cooperating with the second connecting hole (16) is provided on the third rotating shaft (12).
3. The bag opening arrangement mechanism according to claim 2, characterized in that: The first sleeve (17) and the second sleeve (18) are respectively fixed to the first rotating shaft (10) and the third rotating shaft (12) by means of fixing pins (19).
4. The bag opening arrangement mechanism according to claim 2, characterized in that: Both ends of the driving shaft (9) and the second rotating shaft (11) are connected to the mounting bracket (3) using bearings.
5. The bag opening arrangement mechanism according to claim 1, characterized in that: The claw ends of the supporting claws (5) are rounded and smooth.
6. The bag opening arrangement mechanism according to claim 1, characterized in that: Connecting plates (20) are respectively provided on the mounting brackets (3).
7. The bag opening arrangement mechanism according to claim 1, characterized in that: A mounting rod (21) is provided on the mounting bracket (3), and a cylinder support (22) is hingedly connected to the mounting rod (21).
8. The bag opening arrangement mechanism according to claim 1, characterized in that: The support frame (1), the connecting frame (2) and the mounting bracket (3) are fixed by welding.