Transmission mechanism of a bag making machine

Abstract

The utility model relates to the transmission technical field of bag making machine, concretely relates to a transmission mechanism of bag making machine, including frame, the frame rotation is connected with unwinding roller, the right -hand member of frame rotation is connected with take -up roller, the top fixed connection of frame has the mounting seat, the inside slide connection of mounting seat has the lifting rod, the top fixed connection of lifting rod has the shearing frame, the inside open -type structure design of frame, the inboard wall of frame is fixedly connected with the mounting strip symmetry, the top fixed connection of mounting strip has the extension block, the side that mounting strip and extension block are close all are established with the limit slot, with the transmission mechanism of current bag making machine compares, the utility model discloses through the design of the hook and the bending rod, can realize reciprocating lifting to shearing frame, avoids the problem that the oil cylinder appears energy -intensive, greatly promotes the overall practicality.

Description

Technical Field

[0001] This utility model relates to the field of transmission technology for bag making machines, and specifically to a transmission mechanism for a bag making machine. Background Technology

[0002] A bag-making machine is a device used to produce various plastic packaging bags. With the development of society, plastic packaging bags have become an indispensable item in people's lives.

[0003] In existing bag-making machines, the shearing operation requires a transmission device, which is mainly a hydraulic cylinder or a pneumatic cylinder. The shearing frame is mounted on the hydraulic rod, and the bag is sheared under the action of the hydraulic cylinder or pneumatic cylinder. However, this method of driving with hydraulic cylinders or pneumatic cylinders has high operating conditions, requires timely filling of raw materials into the hydraulic cylinder or pneumatic cylinder, consumes a lot of energy, and long-term use can easily lead to the breakage of the internal piston rod, making replacement inconvenient. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a transmission mechanism for a bag making machine, which aims to solve the problems of high operating conditions, the need to fill the hydraulic cylinder or air cylinder with raw materials in a timely manner, and high energy consumption in the existing technology.

[0005] To achieve the goal of ascent, this utility model provides the following technical solution:

[0006] A transmission mechanism for a bag-making machine includes a frame, an unwinding roller rotatably connected to the frame, a take-up roller rotatably connected to the right end of the frame, a mounting base fixedly connected to the top of the frame, a lifting rod slidably connected inside the mounting base, a shearing frame fixedly connected to the top of the lifting rod, the frame having an open internal structure design, mounting strips symmetrically fixedly connected to the inner sidewall of the frame, an extension block fixedly connected to the top of the mounting strip, and a limit groove provided on the side of the mounting strip and the side of the extension block that are close to each other.

[0007] As a preferred embodiment of this utility model, a motor is fixedly connected to the bottom end of one set of mounting strips, and a plug shaft is fixedly connected to the output end of the motor. The plug shaft is rotatably connected to the inside of the mounting strip and extends into the inside of another set of mounting strips.

[0008] As a preferred embodiment of this utility model, a disc is fixedly connected to the outside of the insertion shaft, and a protrusion is fixedly connected to the outside of the disc, with one side of the protrusion having an inclined structure design.

[0009] As a preferred embodiment of this utility model, the lifting rod extends into the interior of the limiting groove and is slidably connected to the limiting groove. A connecting shaft is fixedly connected to the bottom of the lifting rod. A limiting piece is fixedly connected to one end of the auxiliary wheel at a position corresponding to the disc on the outside of the connecting shaft. A guide plate is rotatably connected to one end of the connecting shaft. A stop rod is fixedly connected to the top of the guide plate. A hook is fixedly connected to the top of the stop rod.

[0010] As a preferred embodiment of this utility model, a bent rod is fixedly connected to the end of the guide plate away from the stop rod, a mounting plate is fixedly connected to the back of the disc, and a positioning post is fixedly connected to the outside of the mounting plate at a position corresponding to the bent rod.

[0011] As a preferred embodiment of this utility model, a torsion spring is sleeved on the outside of the connecting shaft and between the guide plate and the limiting plate, and a baffle plate is fixedly connected to the outside of the extension block. The baffle plate has a stepped structure design and is adapted to the stop rod.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] In this invention, the protrusion moves to the position of the auxiliary wheel, and its inclined side contacts the bottom of the auxiliary wheel. At this time, the connecting shaft rises synchronously, driving the lifting rod to rise as well. The guide plate also rises synchronously. Then, the hook enters the top of the barrier plate, fixing the lifting rod after it is raised. As the disc continues to rotate, the positioning pin squeezes against the bending rod, and the stop rod tilts and disengages from the barrier plate, allowing the lifting rod to descend. This operation is repeated to achieve the lifting rod driving the shearing frame to move up and down repeatedly. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the shear frame structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the mounting strip structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the disc structure of this utility model;

[0018] Figure 5 This is a schematic diagram of the connecting shaft structure of this utility model.

[0019] In the diagram: 1. Frame; 2. Unwinding roller; 201. Rewinding roller; 3. Mounting base; 4. Lifting rod; 5. Shearing frame; 6. Mounting strip; 7. Extension block; 8. Limiting groove; 9. Motor; 10. Insert shaft; 11. Disc; 12. Protrusion; 13. Connecting shaft; 14. Auxiliary wheel; 15. Guide plate; 16. Stop rod; 17. Hook; 18. Bending rod; 19. Mounting plate; 20. Positioning post; 21. Torsion spring; 22. Barrier plate. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0021] Example: Please refer to Figures 1-5 This utility model provides a technical solution:

[0022] A transmission mechanism for a bag-making machine includes a frame 1. A unwinding roller 2 is rotatably connected to the frame 1, and a take-up roller 201 is rotatably connected to the right end of the frame 1. A mounting base 3 is fixedly connected to the top of the frame 1. A lifting rod 4 is slidably connected inside the mounting base 3, and a shearing frame 5 is fixedly connected to the top of the lifting rod 4. The frame 1 has an open internal structure design. Mounting strips 6 are symmetrically fixedly connected to the inner sidewalls of the frame 1. An extension block 7 is fixedly connected to the top of each mounting strip 6. Openings are provided on the side of the mounting strip 6 closest to the extension block 7. With a limiting groove 8, the frame 1 is placed in a designated position, and then the plastic bag material is placed on the outside of the unwinding roller 2. Then, one end of the unwinding roller 2 passes under the shearing frame 5, and finally it is wound around one end of the take-up roller 201. By rotating the take-up roller 201, the plastic bag material is conveyed. Then, the lifting rod 4 slides back and forth, and the mounting base 3 limits the lifting rod 4, so that it moves along a predetermined route. Then, the shearing frame 5 reciprocates and rises to process the plastic bag material.

[0023] Furthermore, in this embodiment, a motor 9 is fixedly connected to the bottom end of one set of mounting strips 6, and a plug shaft 10 is fixedly connected to the output end of the motor 9. The plug shaft 10 is rotatably connected to the inside of the mounting strip 6 and extends into the inside of another set of mounting strips 6. By driving the motor 9, the plug shaft 10 will then rotate at the bottom end of the mounting strip 6.

[0024] Furthermore, in this embodiment, a disc 11 is fixedly connected to the outside of the insertion shaft 10, and a protrusion 12 is fixedly connected to the outside of the disc 11. One side of the protrusion 12 has an inclined structure design. The lifting rod 4 extends into the interior of the limiting groove 8 and is slidably connected to the limiting groove 8. A connecting shaft 13 is fixedly connected to the bottom of the lifting rod 4. An auxiliary wheel 14 is rotatably connected to the outside of the connecting shaft 13 at a position corresponding to the disc 11. By rotating the insertion shaft 10, the insertion shaft 10 drives the disc 11 to rotate. At this time, the protrusion 12 will move synchronously. When the protrusion 12 moves to the position of the auxiliary wheel 14, its inclined side will contact the bottom of the auxiliary wheel 14, thereby lifting the auxiliary wheel 14. At this time, the connecting shaft 13 will rise synchronously. Then the connecting shaft 13 will rise, and at the same time, it will drive the lifting rod 4 to rise. The design of the limiting groove 8 ensures that the lifting rod 4 moves along a straight line.

[0025] Furthermore, in this embodiment, a limiting piece is fixedly connected to one end of the connecting shaft 13, a guide plate 15 is rotatably connected to one end of the connecting shaft 13, a stop rod 16 is fixedly connected to the top of the guide plate 15, a hook 17 is fixedly connected to the top of the stop rod 16, a bent rod 18 is fixedly connected to the end of the guide plate 15 away from the stop rod 16, a mounting plate 19 is fixedly connected to the back of the disc 11, a positioning post 20 is fixedly connected to the outside of the mounting plate 19 at a position corresponding to the bent rod 18, a torsion spring 21 is sleeved on the outside of the connecting shaft 13 and between the guide plate 15 and the limiting piece, and a barrier plate 22 is fixedly connected to the outside of the extension block 7. The barrier plate 22 has a stepped structure design. Furthermore, the baffle plate 22 is adapted to be used with the stop rod 16. As the connecting shaft 13 rises, the guide plate 15 rises synchronously, and then the stop rod 16 rises synchronously. Then the hook 17 enters the top of the baffle plate 22, so that the lifting rod 4 is lifted and fixed. Then, as the disc 11 continues to rotate, the mounting plate 19 rotates synchronously. At this time, the positioning column 20 will press against the bending rod 18. Then the guide plate 15 rotates, which presses against the torsion spring 21. The stop rod 16 tilts and disengages from the baffle plate 22, so that the lifting rod 4 is lowered. Finally, the auxiliary wheel 14 is supported by the disc 11. This operation is repeated to make the lifting rod 4 drive the shearing frame 5 to move up and down repeatedly.

[0026] In this embodiment, the specific implementation scenario is as follows: The frame 1 is placed in a designated position, then the plastic bag material is placed over the unwinding roller 2, one end of which is passed under the shearing frame 5, and finally wound around one end of the take-up roller 201. The take-up roller 201 is rotated to convey the plastic bag material. The motor 9 is driven, causing the insertion shaft 10 to rotate at the bottom of the mounting strip 6. The insertion shaft 10 drives the disc 11 to rotate, and the protrusion 12 moves synchronously. When the protrusion 12 moves to the position of the auxiliary wheel 14, its inclined side contacts the bottom of the auxiliary wheel 14, thereby lifting the auxiliary wheel 14. Simultaneously, the connecting shaft 13 rises, and then the connecting shaft 13 rises. Simultaneously, the lifting rod 4 is raised, and the design of the limiting groove 8 ensures that the lifting rod 4 moves in a straight line. As the connecting shaft 13 rises, the guide plate 15 rises synchronously, and then the stop rod 16 rises synchronously. Then the hook 17 enters the top of the barrier plate 22 to fix the lifting rod 4 after it is raised. Then, as the disc 11 continues to rotate, the mounting plate 19 rotates synchronously. At this time, the positioning column 20 will squeeze the bending rod 18. Then the guide plate 15 rotates, which squeezes the torsion spring 21. The stop rod 16 tilts and disengages from the barrier plate 22, so that the lifting rod 4 can descend. Finally, the auxiliary wheel 14 is supported by the disc 11. This operation is repeated to make the lifting rod 4 drive the shearing frame 5 to move up and down.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A transmission mechanism for a bag-making machine, comprising a frame (1), characterized in that: The frame (1) is rotatably connected to an unwinding roller (2), and the right end of the frame (1) is rotatably connected to a take-up roller (201). The top of the frame (1) is fixedly connected to a mounting base (3), and a lifting rod (4) is slidably connected inside the mounting base (3). A shearing frame (5) is fixedly connected to the top of the lifting rod (4). The frame (1) has an open internal structure design. Mounting strips (6) are symmetrically fixedly connected to the inner sidewall of the frame (1). An extension block (7) is fixedly connected to the top of the mounting strip (6). Limiting grooves (8) are opened on the side of the mounting strip (6) that is close to the extension block (7).

2. The transmission mechanism of a bag-making machine according to claim 1, characterized in that: A motor (9) is fixedly connected to the bottom end of one set of mounting strips (6), and a plug shaft (10) is fixedly connected to the output end of the motor (9). The plug shaft (10) is rotatably connected to the inside of the mounting strip (6) and extends into the inside of another set of mounting strips (6).

3. The transmission mechanism of a bag-making machine according to claim 2, characterized in that: The insert shaft (10) is fixedly connected to a disc (11), and the disc (11) is fixedly connected to a protrusion (12). One side of the protrusion (12) is designed with an inclined structure.

4. The transmission mechanism of a bag-making machine according to claim 1, characterized in that: The lifting rod (4) extends into the interior of the limiting groove (8) and is slidably connected to the limiting groove (8). A connecting shaft (13) is fixedly connected to the bottom of the lifting rod (4). An auxiliary wheel (14) is rotatably connected to the outside of the connecting shaft (13) at a position corresponding to the disc (11).

5. The transmission mechanism of a bag-making machine according to claim 4, characterized in that: One end of the connecting shaft (13) is fixedly connected to a limiting piece, and the other end of the connecting shaft (13) is rotatably connected to a guide plate (15). A stop rod (16) is fixedly connected to the top of the guide plate (15), and a hook (17) is fixedly connected to the top of the stop rod (16).

6. The transmission mechanism of a bag-making machine according to claim 5, characterized in that: A bent rod (18) is fixedly connected to one end of the guide plate (15) away from the stop rod (16). A mounting plate (19) is fixedly connected to the back of the disc (11). A positioning post (20) is fixedly connected to the outside of the mounting plate (19) at a position corresponding to the bent rod (18).

7. The transmission mechanism of a bag-making machine according to claim 5, characterized in that: A torsion spring (21) is sleeved on the outside of the connecting shaft (13) and between the guide plate (15) and the limiting plate. A baffle plate (22) is fixedly connected to the outside of the extension block (7). The baffle plate (22) has a stepped structure design and is adapted to be used with the stop rod (16).

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