Packaging bag edge cutting device

Abstract

The utility model relates to the technical field of packaging bags, and discloses a packaging bag edge cutting device which comprises a bottom plate, a first supporting plate is fixedly arranged at the upper end of the bottom plate, a sliding rail is fixedly arranged at the upper end of the bottom plate, the upper end of the sliding rail is slidably sleeved with a sliding block, and a second supporting plate is fixedly arranged at the upper end of the sliding block. Fixing blocks are arranged in the second supporting plate and the first supporting plate in a sliding mode, two first limiting bolts are arranged in each fixing block in a threaded mode, and the four first limiting bolts penetrate through the position between one ends of the fixing blocks and are in threaded connection with the second supporting plate and the first supporting plate correspondingly; first bearings are fixedly arranged in the two fixing blocks, and discharging rollers are fixedly arranged in the two first bearings. According to the packaging bag edge cutting device, the discharging roller can be detached, the effect of rapidly replacing materials is achieved, replacement is convenient, the material replacing time is shortened, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of packaging bags, and in particular relates to a packaging bag edge cutting device. Background Art

[0002] At present, plastic films made of polyvinyl chloride, polyethylene, polypropylene, polystyrene and other resins are used for packaging and as coating layers. Plastic packaging and plastic packaging products occupy an increasingly larger share in the market, especially composite plastic flexible packaging, which has been widely used in food, medicine, chemical industry and other fields, among which food packaging accounts for the largest proportion, such as beverage packaging, quick-frozen food packaging, steamed food packaging, fast food packaging, etc. These products have brought great convenience to people's lives, and plastic bags are in demand in various industries.

[0003] The existing patent (publication number: CN208881250U) discloses a packaging bag trimming device, including a frame, a workbench is arranged on the frame, a transmission mechanism is arranged on the workbench, a lifting mechanism is arranged above the workbench, one end of the lifting mechanism is fixedly arranged on the frame, a first cutter and a second cutter are arranged on the top of the lifting mechanism, and the distance between the first cutter and the second cutter can be adjusted, a plurality of long strip openings are arranged on the workbench, and the openings pass through the workbench, limit blocks for limiting the packaging bags are arranged on both sides of the workbench, an inward depression is arranged on the limit block, and the depression is arranged on the inner surface of the limit block, and the lifting mechanism includes a beam, and the beam is fixedly arranged on the frame through a telescopic cylinder.

[0004] The above-mentioned comparative document points out that the device can cut plastic bags of different specifications to adapt to different sizes, but the device is not convenient for replacing materials. It is time-consuming to replace materials after use. Therefore, a packaging bag cutting device is proposed to solve the above problems. Utility Model Content

[0005] In response to the shortcomings of the prior art, the present application provides a packaging bag trimming device, which has the advantages of quickly changing materials and being able to adapt to the trimming of plastic bags of different sizes. It solves the problem pointed out in the above-mentioned comparative documents that the device is not convenient for replacing materials and it is time-consuming to replace materials after use.

[0006] To achieve the above-mentioned objectives, the present application provides the following technical solutions: a packaging bag trimming device, comprising a base plate, a first support plate fixedly provided on the upper end of the base plate, a slide rail fixedly provided on the upper end of the base plate, a sliding sleeve provided on the upper end of the slide rail, a second support plate fixedly provided on the upper end of the sliding rail, a fixed block slidably provided inside the second support plate and the first support plate, two first limiting bolts are threadedly provided inside the two fixing blocks, four first limiting bolts pass through one end of the fixing block and are threadedly connected to the second support plate and the first support plate in pairs, a first bearing is fixedly provided inside the two fixing blocks, and a material discharge roller is fixedly provided inside the two first bearings.

[0007] Two second fixing plates are fixedly provided at the upper end of the bottom plate, two threaded rods are slidably provided inside the two second fixing plates, third fixing plates are fixedly provided between two of the four threaded rods, second bearings are fixedly provided inside the two third fixing plates, cutting rollers are fixedly provided inside the two second bearings, cutting knives are slidably sleeved at both ends of the outer wall of the cutting roller, and top screws are threadedly provided inside the two cutters.

[0008] Through the above scheme, the device can disassemble the unloading roller to achieve the effect of quickly replacing materials. The fixing block is set to a structure fixed by the first limiting bolt, and the first bearing is fixed inside the fixing block. The fixation of the fixing block is cancelled by loosening the first limiting bolt. After the material on the unloading roller is used up, one end of the fixing block is disengaged by moving the second support plate, and the unloading roller is pulled to disengage the second fixing block from the first support plate, completing the disassembly of the unloading roller. The new unloading roller is directly installed, which is convenient for replacement, reduces material replacement time, and increases work efficiency. At the same time, the cutter is fixedly connected to the cutting roller by a top screw. When cutting packaging bags of different sizes, the cutter can be moved by loosening the top screw to adapt to the cutting of packaging bags of different sizes.

[0009] Furthermore, an extension block is fixedly provided on one side of the bottom end of the second supporting plate.

[0010] According to the above solution, by providing the extension block, it is convenient to provide a structure inside the extension block to fix the second fixing plate.

[0011] Furthermore, a second limiting bolt is provided on the inner thread of one side of the extension block, and the second limiting bolt passes through one end of the extension block and is threadedly connected to the bottom plate.

[0012] Through the above solution, the second limiting bolt is threadedly connected to the bottom plate to limit the position of the second support plate, and the second support plate can be moved by unscrewing it.

[0013] Furthermore, four first fixing plates are fixedly arranged on the upper end of the bottom plate, guide shafts are fixedly arranged between two of the four first fixing plates, and two guide shafts are respectively arranged at two ends of the cutting roller.

[0014] Through the above solution, the two guide rollers are used to guide the direction of the packaging bag between the unloading roller and the cutting roller and between the cutting roller and the receiving roller respectively.

[0015] Furthermore, a limit plate is fixedly arranged on the upper end of the bottom plate, a plurality of limit grooves are provided on both sides of the upper end of the limit plate, and the limit plate is arranged at the bottom end of the cutting roller.

[0016] Through the above solution, the cutting knife cooperates with the limiting groove provided on the upper end of the bottom limiting plate to cut the edge of the packaging bag.

[0017] Furthermore, outer walls of one end of the four threaded rods extending out of the second fixing plate are all threadedly connected with nuts.

[0018] Through the above solution, the nut is connected to the threaded rod, which can limit the position of the third fixing plate and adjust the position of the third fixing plate.

[0019] Furthermore, two fourth fixed plates are fixedly provided at one end of the upper end of the bottom plate away from the first support plate, third bearings are fixedly provided inside the two fourth fixed plates, and receiving rollers are rotatably provided inside the two third bearings, and a driven wheel is fixedly provided on the outer wall of one end of the receiving roller extending out of the fourth fixed plate.

[0020] Through the above solution, the receiving roller is rotatably arranged in the third bearing, and the friction force is small when rotating, which is convenient for receiving materials.

[0021] Furthermore, a motor fixing plate is provided on one side of the fourth fixing plate, a motor is fixedly provided on the upper end of the motor fixing plate, a driving wheel is fixedly sleeved on the output end of the motor, belts are sleeved on the outer walls of the driving wheel and the driven wheel, and the motor fixing plate is fixedly connected to the bottom plate.

[0022] Through the above scheme, the belt sleeve is arranged on the outer wall of the driving wheel and the driven wheel. When the motor is started, the belt drives the driven wheel to rotate through the force of the motor, and then drives the receiving roller to rotate to complete the material receiving.

[0023] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0024] The packaging bag trimming device can disassemble the feeding roller to achieve the effect of quickly changing materials. The fixing block is set to a structure fixed by a first limiting bolt, and the first bearing is fixed inside the fixing block. The fixing of the fixing block is cancelled by loosening the first limiting bolt. After the material on the feeding roller is used up, the second support plate is moved to disengage one end of the fixing block, and the feeding roller is pulled to disengage the second fixing block from the first support plate to complete the disassembly of the feeding roller, and the new feeding roller is directly installed, which is convenient for replacement, reduces the material replacement time, and increases the work efficiency. At the same time, the cutter is fixedly connected to the cutting roller by a top screw. When cutting packaging bags of different sizes, the cutter can be moved by loosening the top screw to adapt to the cutting of packaging bags of different sizes. The height of the cutting roller can be adjusted by the cooperation of the threaded rod and the nut during use. When trimming, the packaging bag can be connected to the receiving roller through the cutting roller first, which is more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the overall structure of a packaging bag trimming device of the utility model;

[0026] Figure 2 This is a schematic diagram of the structure of a material discharging device of a packaging bag trimming device of the utility model;

[0027] Figure 3 This is a schematic structural diagram of a trimming device for a packaging bag trimming device of the utility model;

[0028] Figure 4 This is a schematic structural diagram of a material receiving device of a packaging bag trimming device of the utility model;

[0029] Figure 5 for Figure 2 Enlarged view of point A in the middle.

[0030] Explanation of the markings in the figure: 1. Bottom plate; 2. First support plate; 3. Fixed block; 4. Slide rail; 5. Slider; 6. Second support plate; 7. Extension block; 8. First limiting bolt; 9. Second limiting bolt; 10. First bearing; 11. Unwinding roller; 12. First fixed plate; 13. Guide shaft; 14. Second fixed plate; 15. Threaded rod; 16. Nut; 17. Third fixed plate; 18. Second bearing; 19. Cutting roller; 20. Cutter; 21. Top screw; 22. Limiting plate; 23. Limiting groove; 24. Fourth fixed plate; 25. Third bearing; 26. Rewinding roller; 27. Driven wheel; 28. Motor fixing plate; 29. ​​Motor; 30. Driving wheel; 31. Belt. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0032] See also Figure 1 , Figure 2 and Figure 5 A packaging bag trimming device in this embodiment includes a bottom plate 1, a first support plate 2 is fixedly arranged on the upper end of the bottom plate 1, a slide rail 4 is fixedly arranged on the upper end of the bottom plate 1, a slider 5 is slidably sleeved on the upper end of the slide rail 4, a second support plate 6 is fixedly arranged on the upper end of the slider 5, a fixed block 3 is slidably arranged inside the second support plate 6 and the first support plate 2, two first limiting bolts 8 are threadedly arranged inside the two fixing blocks 3, four first limiting bolts 8 pass through one end of the fixing block 3 and are threadedly connected to the second support plate 6 and the first support plate 2 respectively, a first bearing 10 is fixedly arranged inside the two fixing blocks 3, and a discharge roller 11 is fixedly arranged inside the two first bearings 10.

[0033] See also Figure 1 and Figure 3 Two second fixing plates 14 are fixedly provided at the upper end of the bottom plate 1, two threaded rods 15 are slidably provided inside the two second fixing plates 14, third fixing plates 17 are fixedly provided between the four threaded rods 15, second bearings 18 are fixedly provided inside the two third fixing plates 17, cutting rollers 19 are fixedly provided inside the two second bearings 18, cutting knives 20 are slidably sleeved on both ends of the outer wall of the cutting roller 19, and top screws 21 are threadedly provided inside the two cutters 20.

[0034] See also Figure 1 , Figure 2 ,and Figure 3 An extension block 7 is fixedly provided on one side of the bottom end of the second support plate 6, and a second limiting bolt 9 is provided with an internal thread on one side of the extension block 7. The second limiting bolt 9 passes through one end of the extension block 7 and is threadedly connected to the bottom plate 1. Four first fixing plates 12 are fixedly provided on the upper end of the bottom plate 1, and guide shafts 13 are fixedly provided between each of the four first fixing plates 12. The two guide shafts 13 are respectively arranged at both ends of the cutting roller 19. A limiting plate 22 is fixedly provided on the upper end of the bottom plate 1, and a plurality of limiting grooves 23 are provided on both sides of the upper end of the limiting plate 22. The limiting plate 22 is arranged at the bottom end of the cutting roller 19, and nuts 16 are threadedly connected to the outer walls of one end of the four threaded rods 15 extending out of the second fixing plate 14.

[0035] See also Figure 1 and Figure 4Two fourth fixed plates 24 are fixedly arranged at one end of the upper end of the bottom plate 1 away from the first supporting plate 2, and third bearings 25 are fixedly arranged inside the two fourth fixed plates 24. A receiving roller 26 is rotatably arranged inside the two third bearings 25, and a driven wheel 27 is fixedly sleeved on the outer wall of one end of the receiving roller 26 extending out of the fourth fixed plate 24. A motor fixed plate 28 is arranged on one side of the fourth fixed plate 24, and a motor 29 is fixedly arranged on the upper end of the motor fixed plate 28. A driving wheel 30 is fixedly sleeved on the output end of the motor 29, and a belt 31 is sleeved on the outer wall of the driving wheel 30 and the driven wheel 27, and the motor fixed plate 28 is fixedly connected to the bottom plate 1.

[0036] In this embodiment, the device can disassemble the discharge roller 11 to achieve the effect of quickly replacing materials. The fixing block 3 is set to a structure fixed by the first limiting bolt 8. When the first bearing 10 is fixed inside the fixing block 3 and the first limiting bolt 8 is loosened, the fixation of the fixing block 3 is cancelled. After the material on the discharge roller 11 is used up, one end of the fixing block 3 is detached by moving the second support plate 6, and the discharge roller 11 is pulled to detach the second fixing block 3 from the first support plate 2, completing the disassembly of the discharge roller 11. The new unloading roller 11 is installed for easy replacement, which reduces the material changing time and increases the work efficiency. At the same time, the cutter 20 is fixedly connected to the cutting roller 19 through the top screw 21. When cutting packaging bags of different sizes, the cutter 20 can be moved by loosening the top screw 21 to adapt to the cutting of packaging bags of different sizes. The height of the cutting roller 19 can be adjusted during use through the cooperation of the threaded rod 15 and the nut 16. When trimming, the packaging bag can be first passed through the cutting roller 19 to be connected to the receiving roller 26, which is more convenient to use.

[0037] It should be noted that the fixing block 3 is threadedly connected to the first support plate 2 and the second support plate 6 via the first limiting bolts 8 diagonally arranged inside, so the fixing block 3 can be disassembled by removing the first limiting bolts 8 .

[0038] The working principle of the above embodiment is:

[0039] Loosen the nut 16, lift the third fixing plate 17 upward and tighten the nut 16. The staff will pass the packaging bag to be trimmed through the two guide shafts 13 and the bottom end of the cutting roller 19 respectively, and wrap it around the outer wall of the receiving roller 26. After loosening the nut 16, the cutter 20 is pressed on both sides of the packaging bag and falls into the limiting groove 23. The motor 29 is started, and the receiving roller 26 is driven to rotate through the belt 31, thereby driving the packaging bag to move. During the material collection process, the cutter 20 trims the passing packaging bags. When the discharge roller 11 needs to be replaced, the first limiting bolt 8 is loosened and removed, and the second support plate 6 is moved outward to separate the fixing block 3 at one end of the discharge roller 11 from the second support plate 6. At the same time, the discharge roller 11 is pulled outward. The material roller 11 is disassembled from the first support plate 2 by its other end, and the new material roller 11 is taken out for installation. The fixed plate at one end is extended into the first support plate 2, and the second support plate 6 is pushed inward to insert the other end of the material roller 11 into the second support plate 6. The first limiting bolt 8 is passed through the fixing block 3 and is threadedly connected to the first support plate 2 and the second support plate 6 to limit it. The second limiting bolt 9 is passed through the extension block 7 and is threadedly connected to the bottom plate 1 to limit the second support plate 6. When the size of the cutting edge needs to be adjusted, loosen the top screw 21, move the cutter 20 to the outside of the cutting edge, tighten the top screw 21, and fix the cutter 20.

[0040] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0041] Although the embodiments of the present application have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application.

Claims

1. A packaging bag trimming device, comprising a bottom plate (1), characterized in that: A first support plate (2) is fixedly arranged on the upper end of the bottom plate (1), a slide rail (4) is fixedly arranged on the upper end of the bottom plate (1), a slide block (5) is slidably sleeved on the upper end of the slide rail (4), a second support plate (6) is fixedly arranged on the upper end of the slide block (5), a fixed block (3) is slidably arranged inside the second support plate (6) and the first support plate (2), two first limiting bolts (8) are threadedly arranged inside the two fixing blocks (3), four first limiting bolts (8) pass through one end of the fixing block (3) and are respectively threadedly connected to the second support plate (6) and the first support plate (2), a first bearing (10) is fixedly arranged inside the two fixing blocks (3), and a material discharge roller (11) is fixedly arranged inside the two first bearings (10); Two second fixing plates (14) are fixedly provided at the upper end of the bottom plate (1), two threaded rods (15) are slidably provided inside the two second fixing plates (14), third fixing plates (17) are fixedly provided between two of the four threaded rods (15), second bearings (18) are fixedly provided inside the two third fixing plates (17), cutting rollers (19) are fixedly provided inside the two second bearings (18), cutting knives (20) are slidably sleeved on both ends of the outer wall of the cutting roller (19), and top screws (21) are threadedly provided inside the two cutting knives (20).

2. A packaging bag trimming device according to claim 1, characterized in that: An extension block (7) is fixedly arranged on one side of the bottom end of the second support plate (6).

3. A packaging bag trimming device according to claim 2, characterized in that: A second limiting bolt (9) is provided with an internal thread on one side of the extension block (7), and the second limiting bolt (9) passes through one end of the extension block (7) and is threadedly connected to the bottom plate (1).

4. The packaging bag trimming device according to claim 1, characterized in that: Four first fixing plates (12) are fixedly arranged on the upper end of the bottom plate (1), guide shafts (13) are fixedly arranged between each of the four first fixing plates (12), and two of the guide shafts (13) are respectively arranged at both ends of the cutting roller (19).

5. The packaging bag trimming device according to claim 1, characterized in that: A limit plate (22) is fixedly arranged at the upper end of the bottom plate (1), a plurality of limit grooves (23) are provided on both sides of the upper end of the limit plate (22), and the limit plate (22) is arranged at the bottom end of the cutting roller (19).

6. The packaging bag trimming device according to claim 1, characterized in that: The outer walls of one end of the four threaded rods (15) extending out of the second fixing plate (14) are all threadedly connected with nuts (16).

7. The packaging bag trimming device according to claim 1, characterized in that: Two fourth fixing plates (24) are fixedly provided at one end of the upper end of the bottom plate (1) away from the first supporting plate (2), third bearings (25) are fixedly provided inside the two fourth fixing plates (24), receiving rollers (26) are rotatably provided inside the two third bearings (25), and a driven wheel (27) is fixedly sleeved on the outer wall of one end of the receiving roller (26) extending out of the fourth fixing plate (24).

8. The packaging bag trimming device according to claim 7, characterized in that: A motor fixing plate (28) is provided on one side of the fourth fixing plate (24), a motor (29) is fixedly provided on the upper end of the motor fixing plate (28), a driving wheel (30) is fixedly sleeved on the output end of the motor (29), a belt (31) is sleeved on the outer wall of the driving wheel (30) and the driven wheel (27), and the motor fixing plate (28) is fixedly connected to the bottom plate (1).

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