A film bag trimming device

Abstract

The utility model relates to a kind of film bag edge cutting device, including rack, positioning camera, transmission pressure roller group, limiting mechanism, film cutting pressure roller group, film cutting mechanism and buffer mechanism;Transmission pressure roller group includes two transmission upper rollers and transmission lower roller;Limiting mechanism includes connecting beam and two locating blocks;Film cutting pressure roller group includes two upper film cutting pressure roller and lower film cutting pressure roller;Film cutting mechanism includes connecting block and blade;Limiting spring is sleeved on connecting portion, the both ends of limiting spring are respectively connected with rack and buffer block, and buffer block is sleeved on connecting portion by through hole;Limiting rod is connected on rack and passes through limiting slot.The utility model has the advantages that (1) transmission pressure roller group and film cutting pressure roller group can provide balanced tension effect to the transmission of film bag, so that film bag always keeps flat transmission, avoids film bag relaxation, and affects cutting quality;(2) buffer mechanism can effectively prevent blade from deflecting due to the shaking of rack 1, improve cutting stability.

Description

Technical Field

[0001] This utility model relates to the field of bag making technology, and in particular to a film bag edge trimming device. Background Technology

[0002] After the film bag is made, both sides of the film bag need to be trimmed to obtain the standard size of the bag. However, in the existing film bag trimming process, problems such as uneven film bag transport, edge curling, or blade vibration can easily occur, resulting in burrs on the bag edges, which affects the trimming quality.

[0003] Therefore, the structure of the trimming device needs further improvement to enhance the cutting quality. Utility Model Content

[0004] The purpose of this invention is to provide a film bag edge trimming device that can improve the quality of online edge trimming.

[0005] To achieve the above-mentioned utility model objectives, this utility model provides a film bag trimming device, including a frame, a positioning camera, a transmission pressure roller group, a limiting mechanism, a film cutting pressure roller group, a film cutting mechanism, and a buffer mechanism;

[0006] The conveying pressure roller group includes two upper conveying rollers and a lower conveying roller, with the lower conveying roller located between the two upper conveying rollers, and the positioning camera located above the conveying pressure roller group and between the two upper conveying rollers;

[0007] The limiting mechanism includes a connecting beam and two positioning blocks, the two positioning blocks being disposed opposite to each other on the connecting beam, and the positioning blocks being provided with material transfer grooves;

[0008] The film cutting roller assembly includes two upper film cutting rollers and a lower film cutting roller, with the lower film cutting roller located between the two upper film cutting rollers; the film cutting mechanism is located between the two upper film cutting rollers, and the film cutting mechanism includes a connecting block and a blade; the frame is provided with a connecting rod, and the blade is connected to the connecting rod through the connecting block; the lower film cutting roller has a plurality of clearance grooves arranged thereon, and the blade is located above the clearance grooves;

[0009] The buffer mechanism includes a buffer block, a limiting rod, and a limiting spring. The end of the connecting rod is provided with a connecting part, and there is a step between the connecting part and the connecting rod. The limiting spring is sleeved on the connecting part, and both ends of the limiting spring are respectively connected to the frame and the buffer block. The buffer block is provided with a through hole, and the buffer block is sleeved on the connecting part through the through hole. The buffer block is provided with a limiting groove, and the limiting rod is connected to the frame and passes through the limiting groove.

[0010] As a further improvement to the utility model, the positioning block is detachably connected to the connecting beam by a first fastener.

[0011] As a further improvement of the utility model, the connecting block is provided with a connecting hole, the connecting block is connected to the connecting rod through the connecting hole, and the connecting block is connected to the connecting rod by a second fastener.

[0012] As a further improvement of the utility model, the connecting block is provided with a mounting block and an adjustment groove, the third fastener passes through the adjustment groove and is connected to the mounting block, and the blade is connected to the mounting block.

[0013] Furthermore, the blade is detachably connected to the mounting block via a fourth fastener.

[0014] This utility model discloses a film bag trimming device. The film bag is first conveyed between the upper and lower conveying rollers and its position is monitored by a positioning camera to prevent the film bag from being skewed and affecting the cutting. Then, the two sides of the film bag are conveyed and positioned through the material transfer groove and then trimmed by the blade.

[0015] The advantages of this membrane bag trimming device compared to existing technologies are as follows:

[0016] (1) The conveying pressure roller group and the film cutting pressure roller group can provide a balanced tension for the conveying of the film bag, so that the film bag is always conveyed flat, avoiding the film bag from loosening and affecting the cutting quality;

[0017] (2) The buffer mechanism can effectively prevent the blade from deflecting due to the vibration of the frame, thus improving the cutting stability. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a film bag trimming device according to the present invention;

[0019] Figure 2 This is a schematic diagram showing the location of the transfer pressure roller group;

[0020] Figure 3 This is a schematic diagram of the lower film cutting roller structure;

[0021] Figure 4 This is a schematic diagram showing the position of the film cutting roller assembly;

[0022] Figure 5 This is a schematic diagram of the film cutting mechanism.

[0023] Figure 6 This is a schematic diagram of the buffer mechanism structure;

[0024] Figure 7 This is a schematic diagram of the buffer mechanism. Detailed Implementation

[0025] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.

[0026] like Figure 1 As shown, the present invention provides a film bag trimming device, which includes a frame 1, a positioning camera 2, a transmission pressure roller group 3, a limiting mechanism 4, a film cutting pressure roller group 5, a film cutting mechanism 6, and a buffer mechanism 8.

[0027] The conveyor roller assembly 3 includes two upper conveyor rollers 31 and a lower conveyor roller 32, as follows: Figure 3 As shown, the lower conveyor roller 32 is located between the two upper conveyor rollers 31, and the positioning camera 2 is located above the conveyor pressure roller group 3 and between the two upper conveyor rollers 31. The film bag 9 is conveyed between the upper conveyor roller 31 and the lower conveyor roller 32. The positioning camera 2 will capture the cursor position on the film bag 9 and transmit the image information to the terminal, thereby locating the position of the film bag 9. This ensures that the administrator can quickly grasp the abnormal cursor position information, adjust the machine in time, and avoid the film bag from being skewed during transmission, which would affect the flatness of the trimmed edge.

[0028] The limiting mechanism 4 includes a connecting beam 41 and two positioning blocks 42. The two positioning blocks 42 are arranged opposite to each other on the connecting beam 41, and each positioning block 42 is provided with a material transfer groove 42. Both sides of the film bag 9 are transferred through the material transfer groove 42, which positions the film bag 9 to prevent the sides of the film bag 9 from lifting during transfer and affecting subsequent cutting. The positioning blocks 42 are detachably connected to the connecting beam 41 by a first fastener 44. The distance between the two positioning blocks 42 can be quickly adjusted according to the width of the film bag 9 to accommodate film bags 9 of different sizes.

[0029] like Figure 3-5 As shown, the film cutting roller assembly 5 includes two upper film cutting rollers 51 and a lower film cutting roller 52, with the lower film cutting roller 52 located between the two upper film cutting rollers 51. The film cutting mechanism 6 is located between the two upper film cutting rollers 51. The film cutting mechanism 6 includes a connecting block 61 and a blade 63. The frame 1 is provided with a connecting rod 7. The blade 63 is connected to the connecting rod 7 through the connecting block 61. The lower film cutting roller 52 has several clearance grooves 521 arranged on it. The blade 63 is located above the clearance grooves 521. The clearance grooves 521 can reduce the friction between the blade 63 and the lower film cutting roller 52 and improve the service life of the blade 63.

[0030] The connecting block 61 is provided with a connecting hole 64, and the connecting block 61 is connected to the connecting rod 7 through the connecting hole 64. The connecting block 61 is connected to the connecting rod 7 by a second fastener 68. The spacing of the film cutting mechanism 6 can be quickly adjusted according to the width of the film bag 9 to adjust the cutting position. The connecting block 61 can also be rotated to adjust the angle between the blade 63 and the film bag 9 to obtain a suitable cutting effect.

[0031] The connecting block 61 is provided with a mounting block 62 and an adjusting groove 65. A third fastener 66 passes through the adjusting groove 65 and connects to the mounting block 62. The blade 63 is connected to the mounting block 62. The blade 63 is installed at different positions in the adjusting groove 65 by means of the third fastener 66, which facilitates the adjustment of the blade 63's height. This prevents the blade 63 from being too high, which would affect the cutting effect, or from being too low, which would cause the blade 63 to collide with the lower cutting film pressure roller 52 and affect the blade 63's lifespan. The blade 63 is detachably connected to the mounting block 62 by a fourth fastener 67, which facilitates the replacement of the new blade 63.

[0032] like Figure 6-7 As shown, the buffer mechanism 8 includes a buffer block 81, a limiting rod 83, and a limiting spring 85. The end of the connecting rod 7 is provided with a connecting part 71, and there is a step between the connecting part 71 and the connecting rod 7. The limiting spring 85 is sleeved on the connecting part 71, and the two ends of the limiting spring 85 are respectively connected to the frame 1 and the buffer block 81. The buffer block 81 is provided with a through hole 84, and the buffer block 81 is sleeved on the connecting part 71 through the through hole 84. The buffer block 81 is provided with a limiting groove 82, and the limiting rod 83 is connected to the frame 1 and passes through the limiting groove 82.

[0033] To facilitate the disassembly and assembly of parts and machine adjustments, the connecting rod 7 is detachably fixed to the frame 1. The frame 1 vibrates during bag making, cutting, and other processes, causing the connecting rod 7 to vibrate and deflect. This deflection affects the connected blade 63, impacting the cutting position and resulting in burrs on the bag edges, as well as affecting the lifespan of the blade 63. The buffer block 81 is clamped between the step of the connecting rod 7 and the frame 1 by a limiting spring 85. When the connecting rod 7 is about to deflect slightly, the buffer block 81 is intercepted by the limiting rod 83. The buffer block 81 can only move slightly along the limiting rod 83 and cannot deflect. The limiting rod 83 applies a certain pressure to the connecting rod 7, preventing it from deflecting, while the limiting spring 85 provides a reset and buffering effect for the buffer block 81.

[0034] The present invention relates to a film bag trimming device. The film bag 9 is first conveyed between the upper conveyor roller 31 and the lower conveyor roller 32, and its position is monitored by the positioning camera 2 to prevent the film bag from being skewed and affecting the cutting. Then, the two sides of the film bag 9 are conveyed and positioned through the material transfer groove 42, and then trimmed by the blade 63.

[0035] The preferred embodiments of this utility model have been described in detail above, but this utility model is not limited to the embodiments described. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of this utility model, and these equivalent modifications or substitutions are all included within the scope defined by the claims of this application.

Claims

1. A film bag edge trimming device, characterized in that, It includes a frame, positioning camera, transfer pressure roller assembly, limiting mechanism, film cutting pressure roller assembly, film cutting mechanism, and buffer mechanism; The conveying pressure roller group includes two upper conveying rollers and a lower conveying roller, with the lower conveying roller located between the two upper conveying rollers, and the positioning camera located above the conveying pressure roller group and between the two upper conveying rollers; The limiting mechanism includes a connecting beam and two positioning blocks, the two positioning blocks being disposed opposite to each other on the connecting beam, and the positioning blocks being provided with material transfer grooves; The film cutting roller assembly includes two upper film cutting rollers and a lower film cutting roller, with the lower film cutting roller located between the two upper film cutting rollers; the film cutting mechanism is located between the two upper film cutting rollers, and the film cutting mechanism includes a connecting block and a blade; the frame is provided with a connecting rod, and the blade is connected to the connecting rod through the connecting block; the lower film cutting roller has a plurality of clearance grooves arranged thereon, and the blade is located above the clearance grooves; The buffer mechanism includes a buffer block, a limiting rod, and a limiting spring. The end of the connecting rod is provided with a connecting part, and there is a step between the connecting part and the connecting rod. The limiting spring is sleeved on the connecting part, and both ends of the limiting spring are respectively connected to the frame and the buffer block. The buffer block is provided with a through hole, and the buffer block is sleeved on the connecting part through the through hole. The buffer block is provided with a limiting groove, and the limiting rod is connected to the frame and passes through the limiting groove.

2. The film bag trimming device as described in claim 1, characterized in that, The positioning block is detachably connected to the connecting beam by a first fastener.

3. The film bag trimming device as described in claim 1, characterized in that, The connecting block is provided with a connecting hole, and the connecting block is connected to the connecting rod through the connecting hole. The connecting block is connected to the connecting rod by a second fastener.

4. The film bag trimming device as described in claim 1, characterized in that, The connecting block is provided with a mounting block and an adjustment groove. The third fastener passes through the adjustment groove and is connected to the mounting block. The blade is connected to the mounting block.

5. The film bag trimming device as described in claim 4, characterized in that, The blade is detachably attached to the mounting block via a fourth fastener.

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