Bag making machine with driving rollers

Abstract

The utility model relates to the technical field of bag making machines, in particular to a bag making machine with transmission rollers, which comprises a workbench, two symmetrically distributed support plates are fixedly connected to the upper end face of the workbench, a first conveying mechanism, a second conveying mechanism and a cutting mechanism are arranged between the two support plates, the cutting mechanism comprises a mounting plate, and the mounting plate is fixedly connected with the transmission rollers. The front end face and the rear end face of the mounting plate are each rotationally connected with two symmetrically-distributed first connecting rods, the other ends of the four first connecting rods are each fixedly connected with a first rotating shaft, the four first rotating shafts are rotationally connected with the two supporting plates correspondingly, and a cutting knife is arranged at the lower end of the mounting plate through a clamping mechanism; through cooperation of the driving motor, the mounting plate, the first rotating shaft and the first connecting rod, the mounting plate can be driven to rotate in the horizontal direction, then the cutting knife is driven to rotate in the vertical direction, the cutting knife rotates and cuts in the conveying direction of packaging bags, the cutting effect is good, the cutting knife and the conveying rollers are driven by the same driving motor, and the cost is low.

Description

Technical Field

[0001] This utility model relates to the field of bag making machine technology, and specifically discloses a bag making machine with a transmission roller. Background Technology

[0002] A bag-making machine is a machine that produces various plastic or other material packaging bags. Its processing range includes packaging bags of various sizes, thicknesses, and specifications made of plastic or other materials. Generally, plastic packaging bags are the main product. During the bag-making process, the bag-making machine needs to cut the plastic bags.

[0003] Chinese patent CN218020477U discloses a bag-making machine with a transmission roller, including a machine body. A frame is fixedly installed at the top of the machine body. A cutting device is provided on the inner wall of the frame. The cutting device includes a cylinder, a protective frame, a cutter, and limiting rods. The protective frame is fixedly installed on the inner wall of the frame. The output end of the cylinder is slidably inserted into the top of the protective frame. The cutter is located on the inner wall of the protective frame, and the output end of the cylinder is drively connected to the cutter. Two limiting rods are fixedly connected to the top of the cutter and slidably inserted into the protective frame. This utility model utilizes the coordinated arrangement of the cylinder, protective frame, cutter, and limiting rods. The protective frame protects the cutter and prevents operators from accidentally injuring themselves by contacting the cutter. When the cutter needs to be replaced, the cutting rod can be pulled to expose the cutter, facilitating replacement of the cutter inside the outer shell.

[0004] The aforementioned document discloses a bag-making machine with a drive roller. However, when the cutter cuts the packaging bag, it obstructs the transport of the packaging bag, causing wrinkles and poor cutting effect. Furthermore, the drive roller and the cutter are driven by two separate power systems, resulting in high costs. Therefore, a bag-making machine with a drive roller is needed to solve this problem. Utility Model Content

[0005] This invention proposes a bag making machine with a transmission roller. The cutting blade moves and cuts with the rotation of the conveyor roller, without hindering the conveying of the packaging bag. Moreover, the cutting blade and the conveyor roller are driven by the same drive motor, resulting in lower cost.

[0006] This utility model is implemented as follows: a bag making machine with a transmission roller includes a worktable. Two symmetrically distributed support plates are fixedly connected to the upper end face of the worktable. A first conveying mechanism, a second conveying mechanism, and a cutting mechanism are arranged between the two support plates. The cutting mechanism includes a mounting plate. Two symmetrically distributed first connecting rods are rotatably connected to both the front and rear end faces of the mounting plate. The other ends of the four first connecting rods are fixedly connected to first rotating shafts. The four first rotating shafts are rotatably connected to the two support plates respectively. A cutting blade is provided at the lower end of the mounting plate through a snap-fit ​​mechanism. A drive motor with its output end fixedly connected to one of the first rotating shafts on the front side is installed on the front end face of the front support plate.

[0007] As a preferred embodiment of the bag making machine with transmission rollers according to this utility model, the first conveying mechanism includes two first conveying rollers distributed vertically. The first conveying roller located on the upper side is rotatably connected to two support plates through a second rotating shaft, and the first conveying roller located on the lower side is rotatably connected to the inner wall of the worktable through a second rotating shaft. The front ends of the two second rotating shafts located on the front side extend to the outside of the support plate and the worktable respectively and are fixedly connected with first gears, and the two first gears are meshed together.

[0008] As a preferred embodiment of the bag making machine with transmission rollers according to this utility model, the second conveying mechanism includes two second conveying rollers distributed vertically. The second conveying roller located on the upper side is rotatably connected to two support plates via a third rotating shaft, and the second conveying roller located on the lower side is rotatably connected to the inner wall of the worktable via a third rotating shaft. The front ends of the two third rotating shafts located on the front side extend to the outside of the support plates and the worktable respectively and are fixedly connected with second gears, and the two second gears are meshed together.

[0009] As a preferred embodiment of the bag-making machine with transmission rollers of this utility model, the rear ends of the second and third rotating shafts located on the upper rear side and one of the first rotating shafts located on the rear side all extend to the rear of the rear support plate and are rotatably connected to the second connecting rod, and the outer walls of the three second connecting rods are rotatably connected to the third connecting rod.

[0010] As a preferred embodiment of the present invention, a bag making machine with a transmission roller, the snap-fit ​​mechanism includes two limiting plates fixedly connected to the upper surface of the mounting plate, a fixing plate fixedly connected to the cutting blade is movably arranged between the two limiting plates, and multiple fixing bolts are provided through the outer walls of the two limiting plates, and multiple threaded holes matching the fixing bolts are opened on the outer walls of the fixing plates.

[0011] As a preferred embodiment of the present invention, a bag-making machine with a transmission roller is provided with an unwinding roller movably mounted on the outer wall of the worktable.

[0012] The beneficial effects of this utility model are:

[0013] 1. Through the cooperation of the drive motor, mounting plate, first rotating shaft and first connecting rod, the mounting plate can be driven to rotate horizontally, which in turn drives the cutting blade to rotate vertically, so that the cutting blade rotates and cuts in the direction of the packaging bag, resulting in a good cutting effect;

[0014] 2. Through the cooperation of the second link, the third link, the first gear and the second gear, the two first conveying rollers and the second conveying roller can be driven to rotate with the cutting blade to convey the packaging bag, thus saving costs. Attached Figure Description

[0015] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0016] Figure 1 This is an overall structural diagram of a bag-making machine with a transmission roller according to the present invention.

[0017] Figure 2 This is a front sectional view of a bag-making machine with a transmission roller according to the present invention.

[0018] Figure 3 This is a rear view structural diagram of a bag-making machine with a transmission roller according to the present invention.

[0019] Figure 4 This utility model Figure 2 Enlarged view of point A in the middle;

[0020] Figure 5 This is a structural diagram of the mounting plate of this utility model.

[0021] The markings in the diagram are: 1. Workbench; 2. Support plate; 3. First conveyor roller; 4. Second conveyor roller; 5. Mounting plate; 6. Fixing plate; 7. Cutting blade; 8. First connecting rod; 9. First rotating shaft; 10. Drive motor; 11. Second rotating shaft; 12. Third rotating shaft; 13. First gear; 14. Second gear; 15. Second connecting rod; 16. Third connecting rod; 17. Limiting plate; 18. Fixing bolt; 19. Unwinding roller. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and specific embodiments to aid in understanding its content. Unless otherwise specified, the methods used in this invention are conventional methods; the raw materials and apparatus used, unless otherwise specified, are conventional commercially available products.

[0023] Please see Figure 1-5A bag-making machine with a transmission roller includes a worktable 1. Two symmetrically distributed support plates 2 are fixedly connected to the upper end face of the worktable 1. A first conveying mechanism, a second conveying mechanism, and a cutting mechanism are arranged between the two support plates 2. The cutting mechanism includes a mounting plate 5. Two symmetrically distributed first connecting rods 8 are rotatably connected to both the front and rear end faces of the mounting plate 5. The other ends of the four first connecting rods 8 are fixedly connected to the four first rotating shafts 9. The four first rotating shafts 9 are rotatably connected to the two support plates 2 respectively. A cutting blade 7 is provided at the lower end of the mounting plate 5 through a snap-fit ​​mechanism. A drive motor 10 with its output end fixedly connected to one of the first rotating shafts 9 on the front side is installed on the front end face of the front support plate 2.

[0024] In this embodiment: the mounting plate 5 is rotatably connected to the two support plates 2 via four first rotating shafts 9 and first connecting rods 8, so that the mounting plate 5 can rotate in a horizontal state, thereby allowing the cutting blade 7 to rotate in a vertical state. The drive motor 10 is started, and the drive motor 10 drives one of the first rotating shafts 9 to rotate, which in turn drives the mounting plate 5 to rotate in a horizontal state. The mounting plate 5 further drives the cutting blade 7 to rotate in a vertical state. When the cutting blade 7 rotates to the lowest side, it can cooperate with the worktable 1 to cut the packaging bag. The cutting blade 7 can rotate and cut according to the conveying direction of the packaging bag, resulting in a good cutting effect.

[0025] As a technical optimization of this utility model, the first conveying mechanism includes two first conveying rollers 3 distributed vertically. The first conveying roller 3 located on the upper side is rotatably connected to two support plates 2 via a second rotating shaft 11. The first conveying roller 3 located on the lower side is rotatably connected to the inner wall of the worktable 1 via a second rotating shaft 11. The front ends of the two second rotating shafts 11 located on the front side extend to the outside of the support plate 2 and the worktable 1 respectively and are fixedly connected with first gears 13. The two first gears 13 are meshed together.

[0026] In this embodiment: rotating one of the first conveying rollers 3, thereby driving the other first conveying roller 3 to rotate synchronously in the opposite direction through the second rotating shaft 11 and two first gears 13, thereby conveying the packaging bag.

[0027] As a technical optimization of this utility model, the second conveying mechanism includes two second conveying rollers 4 distributed vertically. The upper second conveying roller 4 is rotatably connected to two support plates 2 via a third rotating shaft 12, and the lower second conveying roller 4 is rotatably connected to the inner wall of the worktable 1 via a third rotating shaft 12. The front ends of the two third rotating shafts 12 on the front side extend to the outside of the support plate 2 and the worktable 1 respectively and are fixedly connected with second gears 14. The two second gears 14 are meshed together.

[0028] In this embodiment: rotating one of the second conveying rollers 4, and then driving the other second conveying roller 4 to rotate synchronously in the opposite direction through the third rotating shaft 12 and two second gears 14, thereby conveying the cut packaging bags.

[0029] As a technical optimization of this utility model, the rear ends of the second rotating shaft 11 and the third rotating shaft 12 located on the upper rear side, as well as one of the first rotating shafts 9 located on the rear side, all extend to the rear of the rear support plate 2 and are rotatably connected to the second connecting rod 15. The outer walls of the three second connecting rods 15 are rotatably connected to the third connecting rod 16.

[0030] In this embodiment: when the drive motor 10 drives the mounting plate 5 to rotate, the first rotating shaft 9 on the rear side drives the second connecting rod 15 in the middle to rotate, and then the third connecting rod 16 drives the other two second connecting rods 15 to rotate, which in turn drives the first conveying roller 3 and the second conveying roller 4 on the upper side to rotate synchronously. Thus, the two first gears 13 and the two second gears 14 drive the two first conveying rollers 3 and the second conveying roller 4 to rotate and transport the packaging bag, which facilitates cutting the packaging bag while it is being transported.

[0031] As a technical optimization of this utility model, the snap-fit ​​mechanism includes two limiting plates 17 fixedly connected to the upper end face of the mounting plate 5. A fixing plate 6 fixedly connected to the cutting blade 7 is movably arranged between the two limiting plates 17. Multiple fixing bolts 18 are provided through the outer walls of the two limiting plates 17. Multiple threaded holes matching the fixing bolts 18 are opened on the outer wall of the fixing plate 6.

[0032] In this embodiment, the fixing bolt 18 facilitates the connection between the fixing plate 6 and the limiting plate 17, and facilitates the installation and removal of the cutting blade 7.

[0033] As a technical optimization of this utility model, the outer wall of the workbench 1 is movably provided with a unwinding roller 19.

[0034] In this embodiment, the unwinding roller 19 facilitates the placement of the raw material roll for the packaging bag.

[0035] The working principle and usage process of this utility model are as follows: First, the unwinding roller 19 containing the packaging bag material is placed on the workbench 1, and the packaging bag passes between the two first conveying rollers 3. Then, the drive motor 10 is started, driving one of the first rotating shafts 9 to rotate, which in turn drives the mounting plate 5 to rotate horizontally. The mounting plate 5 further drives the cutting blade 7 to rotate vertically. When the cutting blade 7 rotates to its lowest position, it can cut the packaging bag in conjunction with the workbench 1. When the drive motor 10 drives the mounting plate 5 to rotate, the first rotating shaft 9 on the rear side drives the second connecting rod 15 in the middle to rotate, which in turn drives the other two second connecting rods 15 to rotate via the third connecting rod 16. This causes the first conveying roller 3 and the second conveying roller 4 on the upper side to rotate synchronously. This, in turn, drives the two first conveying rollers 3 and the second conveying roller 4 to rotate via the two first gears 13 and the two second gears 14 to transport the packaging bag. This facilitates cutting while the packaging bag is being transported. The cutting blade 7 can rotate and cut along with the transport direction of the packaging bag, resulting in a good cutting effect. Furthermore, the cutting blade 7 and the conveying rollers are driven by the same drive motor 10, resulting in lower costs.

[0036] In the description of this utility model, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inner", "outer", "back", "middle", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0037] However, the above description is only a specific embodiment of this utility model and should not be construed as limiting the scope of implementation of this utility model. Therefore, any substitution of equivalent components or equivalent changes and modifications made in accordance with the scope of protection of this utility model should still fall within the scope of the claims of this utility model.

Claims

1. A bag making machine with transmission rollers, comprising a worktable (1), characterized in that: The upper end face of the workbench (1) is fixedly connected with two symmetrically distributed supporting plates (2), a first conveying mechanism, a second conveying mechanism and a cutting mechanism are arranged between the two supporting plates (2), the cutting mechanism comprises a mounting plate (5), the front and rear end faces of the mounting plate (5) are both rotatably connected with two symmetrically distributed first connecting rods (8), the other ends of the four first connecting rods (8) are all fixedly connected with first rotating shafts (9), the four first rotating shafts (9) are rotatably connected with the two supporting plates (2) respectively, the lower end of the mounting plate (5) is provided with a cutting knife (7) through a clamping mechanism, and the front end face of the front supporting plate (2) is provided with a driving motor (10) with an output end fixedly connected with one of the front first rotating shafts (9).

2. A bag making machine with drive rollers as claimed in claim 1, characterized in that: The first conveying mechanism comprises two first conveying rollers (3) arranged in an up-down mode, the upper first conveying roller (3) is rotatably connected with the two supporting plates (2) through a second rotating shaft (11), the lower first conveying roller (3) is rotatably connected between the inner walls of the workbench (1) through a second rotating shaft (11), the front ends of the two front second rotating shafts (11) extend to the outside of the supporting plate (2) and the workbench (1) respectively and are fixedly connected with first gears (13), and the two first gears (13) are meshedly connected.

3. A bag making machine with drive rollers as claimed in claim 1, characterized in that: The second conveying mechanism comprises two second conveying rollers (4) arranged in an up-down mode, the upper second conveying roller (4) is rotatably connected with the two supporting plates (2) through a third rotating shaft (12), the lower second conveying roller (4) is rotatably connected between the inner walls of the workbench (1) through a third rotating shaft (12), the front ends of the two front third rotating shafts (12) extend to the outside of the supporting plate (2) and the workbench (1) respectively and are fixedly connected with second gears (14), and the two second gears (14) are meshedly connected.

4. A bag making machine with drive rollers as claimed in claim 1, characterized in that: The rear ends of the rear second rotating shaft (11) and the third rotating shaft (12) and one of the first rotating shafts (9) extend to the rear of the rear supporting plate (2) and are rotatably connected with second connecting rods (15), and the outer walls of the three second connecting rods (15) are rotatably connected with third connecting rods (16).

5. A bag making machine with drive rollers as claimed in claim 1, characterized in that: The clamping mechanism comprises two limiting plates (17) fixedly connected to the upper end face of the mounting plate (5), a fixed plate (6) fixedly connected with the cutting knife (7) is movably arranged between the two limiting plates (17), a plurality of fixed bolts (18) are arranged in the outer walls of the two limiting plates (17), and a plurality of threaded holes matched with the fixed bolts (18) are formed in the outer wall of the fixed plate (6).

6. A bag making machine with drive rollers as claimed in claim 1, characterized in that: The outer wall of the workbench (1) is movably provided with an unwinding roller (19).

Images