Cutting device for packaging bag production

Abstract

The utility model belongs to the technical field of packaging bags, and particularly relates to a cutting device for packaging bag production. The top of the workbench is rotationally connected with a discharging roller. The top of the workbench is rotationally connected with a first transmission roller. The top of the workbench is rotationally connected with a second transmission roller. One end of the first transmission roller is sleeved with a belt; the belt is connected with one end of the second transmission roller in a sleeving manner; in the moving process of the pressing plate, a packaging bag fixed to the surface of the workbench can be stretched towards the two ends, the packaging bag is in a tightened state, at the moment, a second electric push rod is started to drag a cutting blade to move downwards, and in the moving process of the cutting blade, the packaging bag in the tightened state can be cut; therefore, the situation that when the cutting blade cuts the packaging bag, the packaging bag is prone to moving on the surface of the workbench, and the position of a notch is not flat after the packaging bag is cut is reduced, and the overall cutting quality during cutting of the packaging bag is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging bags, in particular to a cutting device for producing packaging bags. Background Art

[0002] A packaging bag is a bag that can be used to package and pack various items and goods, and the packaging bag can protect the items and goods from external environmental pollution and damage. At the same time, packaging bags can be divided into plastic packaging bags, linen packaging bags, etc.

[0003] In the current prior art, the cutting device for packaging bag production is mainly composed of a workbench, a cutting blade, an operating table, a servo motor and other components. Through the coordinated cooperation between these components, the packaging bags in production can be cut quickly and efficiently.

[0004] In the existing cutting device for packaging bag production, during operation, since the packaging bags are often required to be cut into rolled pieces according to specified sizes during the production process, the cutting blade is likely to cause the packaging bags to move on the surface of the workbench when cutting the packaging bags, which may easily lead to uneven cut positions after the packaging bags are cut, thereby reducing the overall cutting quality when cutting the packaging bags. Therefore, a cutting device for packaging bag production is proposed to address the above problems. Utility Model Content

[0005] In order to make up for the deficiencies of the prior art and solve at least one technical problem raised in the background technology, the utility model provides a cutting device for producing packaging bags.

[0006] The technical solution adopted by the utility model to solve its technical problems is: a cutting device for packaging bag production described in the utility model comprises a workbench; a material discharge roller is rotatably connected to the top of the workbench; a first transmission roller is rotatably connected to the top of the workbench; a second transmission roller is rotatably connected to the top of the workbench; a belt is sleeved on one end of the first transmission roller; the belt is sleeved and connected to one end of the second transmission roller; an output motor is fixedly connected to the top of the workbench; the output end of the output motor is mutually connected with the first transmission roller; a plurality of first slide grooves are provided on the top of the workbench; a sliding column is slidably connected to the inner side of the first slide groove; a first servo motor is fixedly connected to the top of the slide column; a pressure plate is slidably connected to the inner side of the slide column; a screw rod is rotatably connected to the bottom of the inner side of the slide column; the output end of the first servo motor is mutually connected with the screw rod; the pressure plate and the screw rod are threadedly connected; a first electric push rod is fixedly connected to the bottom of the inner side of the first slide groove; one end of the first electric push rod is mutually connected with the slide column; a bracket is fixedly connected to the top of the workbench; a pair of second electric push rods are fixedly connected to the inner top of the bracket; a cutting blade is fixedly connected to the bottom end of the second electric push rod.

[0007] Preferably, a second servo motor is fixedly connected to the top inner side of the bracket; a gear is rotatably connected to the top of the bracket; the output end of the second servo motor is connected to the gear; a pair of second slide grooves are provided at the top of the bracket; racks are slidably connected to the inner sides of the second slide grooves; a connecting column is fixedly connected to the side wall of the rack away from the gear; a cleaning brush is fixedly connected to one end of the connecting column; and the end of the cleaning brush is in contact with the outer surface of the cutting blade.

[0008] Preferably, a conveyor belt is provided on the surface of the workbench; a pair of third slide grooves are provided at the bottom of the workbench; a storage box is slidably connected to the inner side of the third slide groove; and a handle is fixedly connected to a side wall of one side of the storage box.

[0009] Preferably, a fixing frame is fixedly connected to the bottom of the workbench; an installation box is fixedly connected to the inner side of the fixing frame; a cleaning plate is slidably connected to the inner side of the installation box; a plurality of groups of spring columns are fixedly connected to the bottom of the inner side of the installation box; and the top ends of the spring columns are interconnected with the cleaning plate.

[0010] Preferably, the outer wall of the third slide groove is provided with multiple groups of first threaded holes; the outer wall of the workbench is provided with multiple groups of second threaded holes; the inner sides of the second threaded holes are threadedly connected with multiple groups of fastening bolts; the first threaded holes and the second threaded holes are symmetrically arranged with each other.

[0011] Preferably, a first magnetic block is fixedly connected to the bottom of the inner side of the installation box; a second magnetic block is fixedly connected to the bottom of the cleaning plate; the first magnetic block and the second magnetic block are both arranged on the inner side of multiple groups of spring columns.

[0012] Preferably, an inner groove is formed on the outer side wall of the slide column; a pair of fitting rotating columns are rotatably connected to the inner side of the inner groove; and the outer side wall of the fitting rotating column fits with the inner side wall of the first slide groove.

[0013] The utility model is beneficial in that:

[0014] 1. The utility model describes a cutting device for producing packaging bags. The first servo motor is started to drive the screw to rotate. During the rotation of the screw, the pressure plate is moved downward. When the bottom of the pressure plate moves to fit the surface of the packaging bag and is in a certain extrusion state, the first electric push rod is started to push the sliding column to move slightly away from the bracket. During the movement of the bracket, the pressure plate follows the movement. During the movement of the pressure plate, the packaging bag fixed on the surface of the workbench can be stretched to both ends to make the packaging bag in a tight state. At this time, the second electric push rod is started to drag the cutting blade to move downward. During the movement of the cutting blade, the packaging bag in a tight state can be cut, thereby reducing the situation that the cutting blade is easy to cause the packaging bag to move on the surface of the workbench when cutting the packaging bag, which is easy to cause the incision position of the packaging bag to be uneven after the cutting is completed, thereby improving the overall cutting quality of the packaging bag.

[0015] 2. The utility model describes a cutting device for producing packaging bags. When the cutting blade is cutting packaging bags for a long time, some debris and impurities are likely to adhere to the surface of the cutting blade. When it is necessary to clean the debris and impurities adhered to the surface of the cutting blade, the second servo motor is started to drive the gear to rotate. Since the gear and the rack are meshed with each other, the gear rotates and drives a pair of racks to move. Since the connecting column is respectively connected to the rack and the cleaning brush, the connecting column and the cleaning brush follow the movement of the rack. During the movement of the cleaning brush, the debris and impurities adhered to the surface of the cutting blade when it works for a long time can be cleaned, thereby improving the cleanliness of the surface of the cutting blade and extending the service life of the cutting blade. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0017] Figure 1 It is a three-dimensional diagram of the workbench in the utility model;

[0018] Figure 2 It is a three-dimensional diagram of the middle pressure plate of the utility model;

[0019] Figure 3 It is a three-dimensional diagram of the bracket in the utility model;

[0020] Figure 4 It is a three-dimensional diagram of the cleaning plate in the utility model;

[0021] Figure 5 It is a three-dimensional diagram of the storage box in the utility model.

[0022] In the figure: 1. workbench; 11. unloading roller; 12. first transmission roller; 13. second transmission roller; 14. output motor; 15. belt; 16. first slide; 17. slide column; 18. first servo motor; 19. pressure plate; 110. screw rod; 111. first electric push rod; 112. bracket; 113. second electric push rod; 114. cutting blade; 2. second servo motor; 21. gear; 22. second slide; 23. rack; 24. connecting column; 25. cleaning brush; 3. conveyor belt; 31. third slide; 32. storage box; 33. handle; 4. fixing frame; 41. installation box; 42. cleaning plate; 43. spring column; 5. first threaded hole; 51. second threaded hole; 52. fastening bolt; 6. first magnetic block; 61. second magnetic block; 7. inner groove; 71. fitting rotating column. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] like Figure 1 and Figure 2As shown, a cutting device for packaging bag production includes a workbench 1; a feeding roller 11 is rotatably connected to the top of the workbench 1; a first transmission roller 12 is rotatably connected to the top of the workbench 1; a second transmission roller 13 is rotatably connected to the top of the workbench 1; a belt 15 is sleeved on one end of the first transmission roller 12; the belt 15 is sleeved and connected to one end of the second transmission roller 13; an output motor 14 is fixedly connected to the top of the workbench 1; the output end of the output motor 14 is mutually connected to the first transmission roller 12; a plurality of first slide grooves 16 are provided on the top of the workbench 1; slide columns 17 are slidably connected to the inner sides of the first slide grooves 16; a first servo motor 18 is fixedly connected to the top of the slide column 17; The inner side of the slide column 17 is slidably connected with a pressure plate 19; the inner bottom of the slide column 17 is rotatably connected with a screw rod 110; the output end of the first servo motor 18 is connected to the screw rod 110; the pressure plate 19 and the screw rod 110 are threadedly connected; the inner bottom of the first slide groove 16 is fixedly connected with a first electric push rod 111; one end of the first electric push rod 111 is connected to the slide column 17; the top of the workbench 1 is fixedly connected with a bracket 112; the inner top of the bracket 112 is fixedly connected with a pair of second electric push rods 113; the bottom end of the second electric push rod 113 is fixedly connected with a cutting blade 114; when working: the packaging bag to be cut is placed on the unloading roller 11, and a The small section is placed between the first transmission roller 12 and the second transmission roller 13. At this time, the output motor 14 is started to drive the first transmission roller 12 to rotate. During the rotation of the first transmission roller 12, the second transmission roller 13 is driven to rotate in the same direction through the belt 15. During the rotation of the first transmission roller 12 and the second transmission roller 13, the packaging bag can be conveyed to the bottom of the cutting blade 114. When the packaging bag moves to the bottom of the cutting blade 114, the first servo motor 18 is started to drive the screw rod 110 to rotate. During the rotation of the screw rod 110, the pressing plate 19 is moved downward. When the bottom of the pressing plate 19 moves to fit with the surface of the packaging bag and is in a certain extrusion state, the first electric push rod 111 is started to push The slide column 17 moves slightly to the side away from the bracket 112. During the movement of the bracket 112, the pressure plate 19 moves along with it. During the movement of the pressure plate 19, the packaging bag fixed on the surface of the workbench 1 can be stretched to both ends, so that the packaging bag is in a taut state. At this time, the second electric push rod 113 is started to drag the cutting blade 114 to move downward. During the movement of the cutting blade 114, the packaging bag in a taut state can be cut, thereby reducing the situation that the cutting blade 114 is easy to cause the packaging bag to move on the surface of the workbench when cutting the packaging bag, which is easy to cause the incision position of the packaging bag to be uneven after the cutting is completed, thereby improving the overall cutting quality of the packaging bag.

[0025] like Figure 1 and Figure 3As shown, a second servo motor 2 is fixedly connected to the top of the inner side of the bracket 112; a gear 21 is rotatably connected to the top of the bracket 112; the output end of the second servo motor 2 is connected to the gear 21; a pair of second slide grooves 22 are provided on the top of the bracket 112; a rack 23 is slidably connected to the inner side of each of the second slide grooves 22; a connecting column 24 is fixedly connected to the side wall of the rack 23 away from the gear 21; a cleaning brush 25 is fixedly connected to one end of the connecting column 24; the end of the cleaning brush 25 contacts the outer surface of the cutting blade 114; when working: when the cutting blade 114 is cutting the packaging bag for a long time, it is easy to make the surface of the cutting blade 114 stick. Some debris and impurities. When it is necessary to clean the debris and impurities adhered to the surface of the cutting blade 114, start the second servo motor 2 to drive the gear 21 to rotate. Since the gear 21 and the rack 23 are meshed with each other, the gear 21 rotates, driving a pair of racks 23 to move. Since the connecting column 24 is respectively connected to the rack 23 and the cleaning brush 25, that is, during the movement of the rack 23, the connecting column 24 and the cleaning brush 25 follow the movement. During the movement of the cleaning brush 25, the debris and impurities adhered to the surface of the cutting blade 114 when it works for a long time can be cleaned, thereby improving the cleanliness of the surface of the cutting blade 114 and extending the service life of the cutting blade 114.

[0026] like Figure 1 and 5 As shown, a conveyor belt 3 is provided on the surface of the workbench 1; a pair of third slide grooves 31 are opened at the bottom of the workbench 1; a storage box 32 is slidably connected to the inner side of the third slide groove 31; a handle 33 is fixedly connected to the side wall of one side of the storage box 32; during operation: since the handle 33 and the storage box 32 are connected to each other, the handle 33 can be pushed to insert the storage box 32 into the inner side of the third slide groove 31, so that the top of the storage box 32 is under the conveyor belt 3, and at this time, the pressing work of the pressure plate 19 on the packaging bag is released, so that the packaging bag after cutting can be directly transported to the inside of the storage box 32 through the conveyor belt 3, so as to achieve the effect of collecting and storing the packaging bags after cutting, thereby improving the overall production efficiency during packaging bag production.

[0027] like Figure 1 and Figure 4As shown, a fixing frame 4 is fixedly connected to the bottom of the workbench 1; an installation box 41 is fixedly connected to the inner side of the fixing frame 4; a cleaning plate 42 is slidably connected to the inner side of the installation box 41; a plurality of groups of spring columns 43 are fixedly connected to the inner bottom of the installation box 41; the top of the spring column 43 is connected to the cleaning plate 42; during operation: the end of the cleaning plate 42 is made of elastic material, and during the operation of the conveyor belt 3, the plurality of groups of spring columns 43 push the cleaning plate 42 to move up and down inside the installation box 41, when the spring columns 43 push the cleaning plate 42 to move upward and make the end of the cleaning plate 42 fit with the outer surface of the conveyor belt 3, during the operation of the conveyor belt 3, the cleaning plate 42 can clean the dust and impurities adhered to the surface of the conveyor belt 3 during long-term operation, thereby improving the cleanliness of the surface of the conveyor belt 3.

[0028] like Figure 1 and 5 As shown, the outer wall of the third slide groove 31 is provided with multiple groups of first threaded holes 5; the outer wall of the workbench 1 is provided with multiple groups of second threaded holes 51; the inner sides of the second threaded holes 51 are threadedly connected with multiple groups of fastening bolts 52; the first threaded holes 5 and the second threaded holes 51 are symmetrically arranged; during operation: when the storage box 32 is inserted into the inner side of the third slide groove 31, since the fastening bolts 52 are threadedly connected to the second threaded holes 51 and the first threaded holes 5, the fastening bolts 52 are rotated at this time to pass through the second threaded holes 51 and enter the first threaded holes 5. At this time, the fastening bolts 52 can limit the storage box 32, thereby improving the overall stability of the storage box 32 when working inside the third slide groove 31, and avoiding the situation where the storage box 32 automatically slides out when working.

[0029] like Figure 4 As shown, a first magnetic block 6 is fixedly connected to the bottom inner side of the installation box 41; a second magnetic block 61 is fixedly connected to the bottom of the cleaning plate 42; the first magnetic block 6 and the second magnetic block 61 are both arranged on the inner side of the plurality of spring columns 43; during operation: the first magnetic block 6 and the second magnetic block 61 repel each other due to magnetic force, thereby pushing the end of the cleaning plate 42 to fit more closely to the outer surface of the conveyor belt 3, making the end of the cleaning plate 42 more effective in cleaning impurities from the surface of the conveyor belt 3, thereby further improving the cleanliness of the surface of the conveyor belt 3.

[0030] like Figure 2 As shown, the outer wall of the sliding column 17 is provided with an inner groove 7; a pair of fitting rotating columns 71 are rotatably connected to the inner side of the inner groove 7; the outer wall of the fitting rotating column 71 fits with the inner wall of the first sliding groove 16; during operation: when the sliding column 17 slides back and forth inside the first sliding groove 16, the fitting rotating column 71 rotates accordingly, and the fitting rotating column 71 reduces the long-term sliding friction between the outer wall of the sliding column 17 and the inner wall of the first sliding groove 16, which may easily lead to more serious wear on the surface of the sliding column 17, thereby improving the working life of the sliding column 17.

[0031] Working principle: place the packaging bag to be cut on the discharge roller 11, and pull out a small section of the packaging bag and place it between the first transmission roller 12 and the second transmission roller 13. At this time, start the output motor 14 to drive the first transmission roller 12 to rotate. During the rotation of the first transmission roller 12, the second transmission roller 13 is driven to rotate in the same direction through the belt 15. During the rotation of the first transmission roller 12 and the second transmission roller 13, the packaging bag can be conveyed to the bottom of the cutting blade 114. When the packaging bag moves to the bottom of the cutting blade 114, start the first servo motor 18 to drive the screw rod 110 to rotate. During the rotation of the screw rod 110, the pressing plate 19 moves downward. When the bottom of the pressing plate 19 moves to the same direction as the cutting blade 114, the pressing plate 19 moves downward. When the surfaces of the packaging bag are in contact with each other and are in a certain extrusion state, the first electric push rod 111 is started to push the slide column 17 to move slightly away from the bracket 112. During the movement of the bracket 112, the pressing plate 19 moves accordingly. During the movement of the pressing plate 19, the packaging bag fixed on the surface of the workbench 1 can be stretched to both ends, so that the packaging bag is in a tight state. At this time, the second electric push rod 113 is started to drag the cutting blade 114 to move downward. During the movement of the cutting blade 114, the packaging bag in a tight state can be cut, thereby reducing the risk of the cutting blade 114 causing the packaging bag to move on the workbench surface when cutting the packaging bag. The cutting blade 114 is easy to cause the cutting position to be uneven after the packaging bag is cut, thereby improving the overall cutting quality of the packaging bag; when the cutting blade 114 is used to cut the packaging bag for a long time, it is easy for some debris and impurities to adhere to the surface of the cutting blade 114. When the debris and impurities adhered to the surface of the cutting blade 114 need to be cleaned, the second servo motor 2 is started to drive the gear 21 to rotate. Since the gear 21 and the rack 23 are meshed with each other, the gear 21 rotates, driving a pair of racks 23 to move. Since the connecting column 24 is respectively connected to the rack 23 and the cleaning brush 25, that is, during the movement of the rack 23, the connecting column 24 and the cleaning brush 25 follow the movement, and the cleaning brush 2 During the movement, the debris and impurities adhering to the surface of the cutting blade 114 when working for a long time can be cleaned, thereby improving the cleanliness of the surface of the cutting blade 114 and extending the service life of the cutting blade 114; because the handle 33 and the storage box 32 are connected to each other, the handle 33 can be pushed to insert the storage box 32 into the inner side of the third slide groove 31, so that the top of the storage box 32 is under the conveyor belt 3, and the pressing work of the pressing plate 19 on the packaging bag is released at this time, so that the packaging bag after cutting can be directly transported to the inside of the storage box 32 through the conveyor belt 3, so that the packaging bag after cutting can be collected and stored, thereby improving the overall production efficiency of the packaging bag production;The end of the cleaning plate 42 is made of elastic material. During the operation of the conveyor belt 3, multiple groups of spring columns 43 push the cleaning plate 42 to move up and down inside the installation box 41. When the spring columns 43 push the cleaning plate 42 to move upward and make the end of the cleaning plate 42 fit the outer surface of the conveyor belt 3, during the operation of the conveyor belt 3, the cleaning plate 42 can clean the dust and impurities adhered to the surface of the conveyor belt 3 during long-term operation, thereby improving the cleanliness of the surface of the conveyor belt 3; when the storage box 32 is inserted into the inner side of the third slide groove 31, because the fastening bolt 52 is threadedly connected to the second threaded hole 51 and the first threaded hole 5, the fastening bolt 52 is rotated to pass through the second threaded hole 51 and enter the first threaded hole 5. At this time, the fastening bolt 52 can limit the storage box 32, so that The overall stability of the storage box 32 when working inside the third chute 31 is improved, and the storage box 32 is prevented from automatically sliding out when working; the first magnetic block 6 and the second magnetic block 61 repel each other due to magnetic force, thereby pushing the end of the cleaning plate 42 to fit more closely with the outer surface of the conveyor belt 3, so that the end of the cleaning plate 42 is more effective in cleaning impurities on the surface of the conveyor belt 3, thereby further improving the cleanliness of the surface of the conveyor belt 3; when the slide post 17 slides back and forth inside the first chute 16, the fitting rotating post 71 rotates accordingly, and the fitting rotating post 71 reduces the sliding friction between the outer wall of the slide post 17 and the inner wall of the first chute 16 for a long time, which may easily cause the surface of the slide post 17 to be more seriously worn, thereby improving the working life of the slide post 17. ;

[0032] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A cutting device for packaging bag production, comprising a workbench (1); characterized in that: The top of the workbench (1) is rotatably connected to a discharge roller (11); the top of the workbench (1) is rotatably connected to a first transmission roller (12); the top of the workbench (1) is rotatably connected to a second transmission roller (13); one end of the first transmission roller (12) is sleeved with a belt (15); the belt (15) and one end of the second transmission roller (13) are sleeved; an output motor (14) is fixedly connected to the top of the workbench (1); the output end of the output motor (14) is mutually connected to the first transmission roller (12); a plurality of first slide grooves (16) are provided on the top of the workbench (1); the inner sides of the first slide grooves (16) are slidably connected to slide columns (17); the top of the slide column (17) is fixedly connected to a first servo motor The invention relates to a machine (18); a pressure plate (19) is slidably connected to the inner side of the slide column (17); a lead screw (110) is rotatably connected to the inner bottom of the slide column (17); the output end of the first servo motor (18) is connected to the lead screw (110); the pressure plate (19) and the lead screw (110) are threadedly connected; a first electric push rod (111) is fixedly connected to the inner bottom of the first slide groove (16); one end of the first electric push rod (111) is connected to the slide column (17); a bracket (112) is fixedly connected to the top of the inner side of the bracket (112); a cutting blade (114) is fixedly connected to the bottom of the second electric push rod (113).

2. A cutting device for packaging bag production according to claim 1, characterized in that: A second servo motor (2) is fixedly connected to the top of the inner side of the bracket (112); a gear (21) is rotatably connected to the top of the bracket (112); the output end of the second servo motor (2) is connected to the gear (21); a pair of second slide grooves (22) are provided at the top of the bracket (112); racks (23) are slidably connected to the inner sides of the second slide grooves (22); a connecting column (24) is fixedly connected to the side wall of the rack (23) away from the gear (21); a cleaning brush (25) is fixedly connected to one end of the connecting column (24); the end of the cleaning brush (25) is in contact with the outer surface of the cutting blade (114).

3. A cutting device for packaging bag production according to claim 1, characterized in that: A conveyor belt (3) is provided on the surface of the workbench (1); a pair of third slide grooves (31) are provided at the bottom of the workbench (1); a storage box (32) is slidably connected inside the third slide grooves (31); and a handle (33) is fixedly connected to a side wall of one side of the storage box (32).

4. A cutting device for packaging bag production according to claim 1, characterized in that: The bottom of the workbench (1) is fixedly connected to a fixing frame (4); the inner side of the fixing frame (4) is fixedly connected to an installation box (41); the inner side of the installation box (41) is slidably connected to a cleaning plate (42); the inner bottom of the installation box (41) is fixedly connected to a plurality of groups of spring columns (43); the top ends of the spring columns (43) are connected to the cleaning plate (42).

5. A cutting device for packaging bag production according to claim 3, characterized in that: The outer wall of the third slide groove (31) is provided with a plurality of first threaded holes (5); the outer wall of the workbench (1) is provided with a plurality of second threaded holes (51); the inner sides of the second threaded holes (51) are threadedly connected with a plurality of fastening bolts (52); the first threaded holes (5) and the second threaded holes (51) are symmetrically arranged with each other.

6. A cutting device for packaging bag production according to claim 4, characterized in that: A first magnetic block (6) is fixedly connected to the bottom of the inner side of the installation box (41); a second magnetic block (61) is fixedly connected to the bottom of the cleaning plate (42); the first magnetic block (6) and the second magnetic block (61) are both arranged on the inner side of the plurality of groups of spring columns (43).

7. A cutting device for packaging bag production according to claim 1, characterized in that: The outer wall of the slide column (17) is provided with an inner groove (7); a pair of fitting rotating columns (71) are rotatably connected inside the inner groove (7); the outer wall of the fitting rotating columns (71) fits with the inner wall of the first slide groove (16).

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