Splitting machine for plastic packaging bag production

Abstract

The utility model relates to the technical field of packaging bag production, in particular to a splitting machine for plastic packaging bag production, which comprises a shell, a cutting roller, a guide roller and a splitting component, the slitting assembly comprises an elastic component, a lifting frame, a slitting knife, a mounting seat and a driving seat, during use, the rotating motor is started to drive the cutting roller to rotate, then the cutting roller drives a packaging bag on the surface of the cutting roller to move, the cutting roller further drives the mounting seat to move in the rotating process, and then the mounting seat drives the driving seat to rotate; the lifting frame descends under the action of the driving seats, then the slitting knife is driven to descend, the plastic bag on the surface of the cutting roller is cut by the slitting knife, the descending frequency of the lifting frame and the slitting knife is changed by adjusting the number and the position of the driving seats, and the slitting knife can slit the packaging bag into different lengths. The purpose of cutting packaging bags into different sizes is achieved.

Description

Technical Field

[0001] This utility model relates to the field of packaging bag production technology, and in particular to a slitting machine for producing plastic packaging bags. Background Technology

[0002] Before plastic packaging bags are made into bags, they are usually rolled into a tube shape using a roll, and then the roll of plastic packaging bags is cut into individual pieces using a slitting device. Traditionally, the slitting is done manually, which is inefficient.

[0003] The prior art CN212796056U discloses a slitting machine for producing plastic packaging bags, including a protective device, a conveyor belt, a vacuum adsorption roller, a connecting cylinder, a device support, and a cutting drive assembly. The device support is located in the protective device, the connecting cylinder is rotatably mounted on the device support, the vacuum adsorption roller is mounted on the connecting cylinder, the conveyor belt and the cutting drive assembly are located on both sides of the vacuum adsorption roller, the vacuum adsorption roller is provided with a vacuum guide tube, and the vacuum adsorption roller is provided with adsorption holes along the circumferential direction. The vacuum guide tube is provided with a fan-shaped flow obstruction on the side near the conveyor belt. The fan-shaped flow obstruction is slidably contacted on the inner wall of the vacuum adsorption roller. When in use, the cutting drive motor is started to drive the drive disc to rotate. The drive disc drives the transmission spur gear to move up and down reciprocally through the drive slider. The transmission spur gear drives the transmission incomplete gear to rotate reciprocally through the gear tooth transmission, thereby driving the cutting part to extend and retract from the component protective cavity. When the cutting part swings out from the component protective cavity, it cuts and separates the plastic packaging bag located on the vacuum adsorption roller.

[0004] The device described above can automatically cut packaging bags, but the movement frequency of the cutting components is not easy to adjust, making it difficult to cut packaging bags into different sizes. Utility Model Content

[0005] The purpose of this utility model is to provide a slitting machine for producing plastic packaging bags, which solves the problem that existing slitting machines for producing plastic packaging bags are not easy to adjust due to the inconvenience of adjusting the movement frequency of the cutting parts, thus making it difficult to cut packaging bags into different sizes.

[0006] To achieve the above objectives, this utility model provides a slitting machine for producing plastic packaging bags, including a housing, a cutting roller, and a guide roller. The cutting roller is rotatably installed inside the housing, and the guide roller is rotatably installed inside the housing. The machine also includes a slitting assembly. The slitting assembly includes an elastic member, a lifting frame, a slitting blade, a mounting base, and a drive base. The elastic member is disposed inside the housing. The lifting frame is slidably connected to the housing via the elastic member. The slitting blade is fixedly connected to the lifting frame and located on the side of the lifting frame closer to the cutting roller. The mounting base is fixedly connected to the cutting roller and sleeved on it. The drive base is connected to the mounting base and contacts the lifting frame, and is disposed on the mounting base.

[0007] The lifting frame includes a frame body and rollers. The frame body is fixedly connected to the slitting blade and slidably connected to the outer shell, and is located inside the outer shell. The rollers are rotatably connected to the frame body and are mounted on the frame body.

[0008] The elastic component includes a slider and a return spring. The slider is fixedly connected to the frame and slidably connected to the outer shell, and is located on one side of the frame. The two ends of the return spring are respectively connected to the outer shell and the slider, and the return spring is disposed on the outer shell.

[0009] The elastic component further includes a guide rod, which is fixedly connected to the outer shell and slidably connected to the slider, and passes through the slider.

[0010] The drive seat includes a locking member and a seat body. The locking member is disposed on the mounting seat and passes through the mounting seat. The seat body is threadedly connected to the locking member and is located inside the mounting seat.

[0011] This utility model discloses a slitting machine for producing plastic packaging bags. In use, the rotary motor is started, driving the cutting roller to rotate. This causes the cutting roller to move the packaging bags on its surface. During the rotation of the cutting roller, the mounting base also moves, causing the mounting base to drive the drive seat to rotate. When the drive seat rotates to the lifting frame, the lifting frame descends under the action of the drive seat, causing the slitting blade to descend and cut the plastic bags on the surface of the cutting roller. As the cutting roller continues to rotate, when the drive seat disengages from the lifting frame, the lifting frame returns to its original position under the elastic force of the elastic member. This moves the slitting blade away from the cutting roller, avoiding interference with the movement of the packaging bags, thus achieving the slitting of the packaging bags. The slitting bags fall onto the conveyor belt and are transported to the next process. By adjusting the number and position of the drive seats, the descent frequency of the lifting frame and the slitting blade can be changed, allowing the slitting blade to cut the packaging bags into different lengths, achieving the purpose of cutting the packaging bags into different sizes. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0013] Figure 1 This is a schematic diagram of the overall structure of the slitting machine for producing plastic packaging bags according to this utility model.

[0014] Figure 2 This is a structural schematic diagram of the elastic component of this utility model.

[0015] Figure 3 This is a schematic diagram of the installation structure of the guide roller of this utility model.

[0016] Figure 4 This is a schematic diagram of the drive seat of this utility model.

[0017] In the diagram: 101-outer shell, 102-cutting roller, 103-guide roller, 104-slitting assembly, 105-elastic component, 106-lifting frame, 107-slitting blade, 108-mounting base, 109-drive base, 110-frame, 111-roller, 112-slider, 113-reset spring, 114-guide rod, 115-locking component, 116-base, 117-rotary motor, 118-conveyor belt. Detailed Implementation

[0018] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0019] Please see Figures 1 to 4 ,in Figure 1 This is a schematic diagram of the overall structure of a slitting machine used in the production of plastic packaging bags. Figure 2 This is a structural diagram of an elastic component. Figure 3 This is a schematic diagram of the guide roller installation structure. Figure 4 This is a schematic diagram of the drive unit.

[0020] This utility model provides a slitting machine for producing plastic packaging bags, including a shell 101, a cutting roller 102, a guide roller 103, and a slitting assembly 104. The slitting assembly 104 includes an elastic member 105, a lifting frame 106, a slitting blade 107, a mounting base 108, and a drive base 109. The lifting frame 106 includes a frame body 110 and rollers 111. The elastic member 105 includes a slider 112, a return spring 113, and a guide rod 114. The drive base 109 includes a locking member 115 and a seat body 116. By adjusting the position and number of the drive bases 109, the descent frequency of the lifting frame 106 can be adjusted, thereby facilitating the slitting of packaging bags into different sizes.

[0021] In this specific embodiment, the cutting roller 102 is rotatably mounted inside the housing 101, the guide roller 103 is rotatably mounted inside the housing 101, a rotary motor 117 is mounted on one side of the housing 101, and the output end of the rotary motor 117 passes through the housing 101 and is connected to the cutting roller 102. Several pressure rollers (not shown in the figure) are also provided inside the housing 101. The pressure rollers are used to press the packaging bag onto the cutting roller 102. A conveyor belt 118 is also provided on one side of the housing 101 for transporting the slit packaging bag to the next process. In use, the rolled plastic packaging bag is passed around the guide roller 103 and transmitted to the cutting roller 102, and the packaging bag is slit by the slitting assembly 104.

[0022] The elastic member 105 is disposed inside the outer casing 101. The lifting frame 106 is slidably connected to the outer casing 101 via the elastic member 105. The slitting blade 107 is fixedly connected to the lifting frame 106 and is located on the side of the lifting frame 106 near the cutting roller 102. The mounting base 108 is fixedly connected to the cutting roller 102 and is sleeved on the cutting roller 102. The drive base 109 is connected to the mounting base 108 and contacts the lifting frame 106, and is disposed on the mounting base 108. There are two mounting bases 108, located on both sides of the cutting roller 102 respectively. There are multiple drive bases 109, evenly distributed on the mounting bases 108. The drive bases 109 are detachable, thus facilitating adjustment of their number and position. The elastic member 105 is elastic, and the elasticity of the elastic member 105 drives the lifting frame 106 to rise, thereby driving the slitting blade 107 away from the cutting roller 102.

[0023] In use, the rotary motor 117 is started to drive the cutting roller 102 to rotate, which in turn causes the cutting roller 102 to move the packaging bag on its surface. During the rotation of the cutting roller 102, the mounting base 108 is also moved, which in turn causes the mounting base 108 to drive the drive base 109 to rotate. When the drive base 109 rotates to the lifting frame 106, the lifting frame 106 descends under the action of the drive base 109, which in turn causes the slitting blade 107 to descend, allowing the slitting blade 107 to cut the plastic bag on the surface of the cutting roller 102. As the cutting roller 102 continues to rotate, when the... After the drive seat 109 disengages from the lifting frame 106, the lifting frame 106 can reset under the elastic force of the elastic member 105, thereby moving the slitting blade 107 away from the cutting roller 102 and avoiding affecting the movement of the packaging bag, thus realizing the slitting of the packaging bag. The slitting packaging bag falls onto the conveyor belt 118 and is transported to the next process. By adjusting the number and position of the drive seats 109, the descent frequency of the lifting frame 106 and the slitting blade 107 is changed, so that the slitting blade 107 can cut the packaging bag into different lengths, achieving the purpose of cutting the packaging bag into different sizes.

[0024] Secondly, the frame 110 is fixedly connected to the slitting blade 107 and slidably connected to the outer shell 101, and is located inside the outer shell 101; the roller 111 is rotatably connected to the frame 110 and is disposed on the frame 110; there are two rollers 111, which are respectively located on both sides of the lifting frame 106. By rotating the rollers 111, the friction between the rollers 111 and the drive seat 109 and the mounting seat 108 is reduced, thereby reducing noise and preventing wear and tear of the device during long-term use.

[0025] Meanwhile, the slider 112 is fixedly connected to the frame 110 and slidably connected to the outer shell 101, and is located on one side of the frame 110; the two ends of the return spring 113 are respectively connected to the outer shell 101 and the slider 112, and the return spring 113 is disposed on the outer shell 101; two elastic members 105 are disposed, respectively located on both sides of the lifting frame 106. The return spring 113 drives the slider 112 to move upward, thereby driving the lifting frame 106 to rise, so that the lifting frame 106 can rise. When the roller 111 contacts the drive seat 109, the lifting frame 106 descends and drives the slider 112 to descend, so that the slider 112 compresses the return spring 113. In this way, after the roller 111 leaves the drive seat 109, the slider 112 and the lifting frame 106 can be reset under the elastic action of the return spring 113.

[0026] In addition, the guide rod 114 is fixedly connected to the outer shell 101 and slidably connected to the slider 112, and passes through the slider 112; the guide rod 114 guides the lifting and lowering of the slider 112, so that the slider 112 can only lift and lower along the length direction of the guide rod 114, thereby improving the stability of the slider 112 when lifting and lowering.

[0027] Finally, the locking member 115 is disposed on the mounting base 108 and passes through the mounting base 108; the seat body 116 is threadedly connected to the locking member 115 and is located inside the mounting base 108; the mounting base 108 is provided with several through holes. In use, the seat body 116 is placed inside the mounting base 108, and the locking member 115 passes through the through holes on the mounting base 108 and is threadedly connected to the seat body 116. Finally, the locking member 115 is tightened to lock the seat body 116 onto the mounting base 108; when disassembling the seat body 116, the locking member 115 is loosened.

[0028] When using the plastic packaging bag slitting machine of this utility model, the position and number of the drive seats 109 are adjusted according to the required slitting size, and the rotary motor 117 is started to drive the cutting roller 102 to rotate. The cutting roller 102 drives the packaging bag on it to move. During the rotation of the cutting roller 102, the mounting seat 108 is also driven to move, so that the mounting seat 108 drives the drive seats 109 to rotate. When the drive seats 109 contact the roller 111, the drive seats 109 drive the roller 111 to move, which in turn drives the lifting frame 106 to move. The lifting frame 106 drives the slitting blade 107 to descend and slitting the packaging bag. When the drive seats 109 leave the roller 111, the frame 110, the slider 112 and the slitting blade 107 rise under the action of the return spring 113, thereby avoiding affecting the movement of the packaging bag. This utility model can slit the packaging bag into different sizes by adjusting the number and position of the drive seats 109.

[0029] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A slitting machine for plastic packaging bag production, comprising a shell, a cutting roller and a guide roller, the cutting roller is rotatably installed inside the shell, and the guide roller is rotatably installed inside the shell, characterized in that, It further comprises a slitting assembly; The slitting assembly comprises an elastic member, a lifting frame, a slitting knife, a mounting seat and a driving seat, the elastic member is arranged inside the shell, the lifting frame is slidably connected with the shell through the elastic member, the slitting knife is fixedly connected with the lifting frame and located on the side of the lifting frame close to the cutting roller, the mounting seat is fixedly connected with the cutting roller and sleeved on the cutting roller, and the driving seat is connected with the mounting seat and in contact with the lifting frame and arranged on the mounting seat.

2. The slitting machine for plastic packaging bag production according to claim 1, characterized in that, The lifting frame comprises a frame body and a roller, the frame body is fixedly connected with the slitting knife and slidably connected with the shell and located inside the shell, and the roller is rotatably connected with the frame body and arranged on the frame body.

3. The slitting machine for plastic packaging bag production according to claim 2, characterized in that, The elastic member comprises a sliding block and a return spring, the sliding block is fixedly connected with the frame body and slidably connected with the shell and located on one side of the frame body, and the two ends of the return spring are respectively connected with the shell and the sliding block, and the return spring is arranged on the shell.

4. The slitting machine for plastic packaging bag production according to claim 3, characterized in that, The elastic member further comprises a guide rod, the guide rod is fixedly connected with the shell and slidably connected with the sliding block and penetrates through the sliding block.

5. The slitting machine for plastic packaging bag production according to claim 1, characterized in that, The driving seat comprises a locking piece and a seat body, the locking piece is arranged on the mounting seat and penetrates through the mounting seat, and the seat body is threadedly connected with the locking piece and located inside the mounting seat.

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