Scrap edge winding device for three-edge sealing bag making machine

Abstract

The invention belongs to the field of waste edge winding devices, and provides a waste edge winding device for a three-edge sealing bag making machine, the waste edge winding device comprises a workbench, the upper end face of the workbench is sequentially provided with a tensioning mechanism, a detecting mechanism, an adjusting mechanism and a winding mechanism, the tensioning mechanism is used for tensioning the two sides of a waste edge, and the detecting mechanism is used for detecting the two sides of the waste edge. The detecting mechanism is used for detecting the deflection degree of the two sides of the waste edge, the adjusting mechanism is used for correcting and resetting the horizontal deflection of the waste edge, and the winding mechanism is used for winding the waste edge. When the winding mechanism winds the slitter edge, the tensioning mechanism tensions the two sides of the slitter edge at the moment, then the slitter edge passes through the detection mechanism, the detection mechanism detects the deflection degree of the two sides of the slitter edge, and when the slitter edge deflects towards one side, the adjusting mechanism corrects the horizontal deflection of the slitter edge and resets the slitter edge. When the slitter edge passes through the air guide groove, the flattening mechanism can flatten the slitter edge, and wrinkles during rolling of the flattening mechanism are avoided.

Description

Technical Field

[0001] The invention belongs to the field of waste edge winding devices, and in particular relates to a waste edge winding device for a three-side sealing bag making machine. Background Art

[0002] The three-side sealing bag making machine adopts PLC microcomputer control, dual servo dual frequency conversion speed regulation, photoelectric monitoring and correction, pneumatic transmission and other technologies, integrating machine and photoelectricity. It adopts full-automatic unwinding, cutting, tension adjustment control system, five-row bridge-type longitudinal sealing hot knife heat sealing and circulating water cooling bonding device, heating temperature Pc control, and various special-shaped bag auxiliary bag making devices can be added as needed.

[0003] The three-side sealing bag making machine continuously discharges the double-layer film at one end and continuously reels it at the other end when making bags. During this process, the double-layer film is cut and bonded at the same time to form a bag body. The remaining waste edge after cutting is reeled up under the drive of the reeling device.

[0004] When the waste edge rolling device of the existing three-side sealing bag making machine rolls up the waste edge, due to the light weight of the film waste edge, it is easy to deviate to both sides, resulting in poor flatness at both ends of the waste edge roll after rolling; at the same time, the material hardness of the film waste edge is poor and it is easy to wrinkle, resulting in different diameters at both ends of the waste edge roll after rolling, and poor thickness uniformity of the waste edge after rolling. Summary of the invention

[0005] The purpose of the present invention is to provide a waste edge winding device for a three-side sealing bag making machine, aiming to solve the technical problems in the prior art that when the waste edges are wound up, the waste edges of the film are light in weight and thus easily deviate to both sides, and at the same time, the hardness of the waste edges of the film is poor and they are easily wrinkled.

[0006] The present invention is implemented as follows: a waste edge winding device for a three-side sealing bag making machine comprises a workbench, the upper end surface of the workbench is sequentially provided with a tensioning mechanism, a detection mechanism, an adjustment mechanism and a winding mechanism, the tensioning mechanism is used to tension both sides of the waste edge, the detection mechanism is used to detect the degree of deflection of both sides of the waste edge, the adjustment mechanism is used to correct and reset the horizontal deflection of the waste edge, and the winding mechanism is used to wind up the waste edge; A fourth lifting seat that can be vertically extended and retracted is arranged between the adjustment mechanism and the reeling mechanism, and an air guide slot is fixedly connected to the retractable end of the fourth lifting seat, and the air guide slot is trapezoidal, and the opening of the air guide slot facing the reeling mechanism is larger than the opening at the other end of the air guide slot, and a shell is fixedly connected to the opening of the air guide slot facing the reeling mechanism, and two rectangular slots are arranged in the shell, and an electric heating mechanism capable of heating the waste edge is arranged in each rectangular slot; A partition is fixedly connected to the middle of the air guide groove, and a leveling mechanism is provided in the air guide groove, the leveling mechanism can level the waste edge, and the leveling mechanism can clean the dust on the waste edge, and the upper and lower end surfaces of the shell are both provided with a blower; The control system can control the tensioning mechanism, the detection mechanism and the adjustment mechanism. At the same time, the control system can also monitor the diameters of both ends of the waste edge roll wound on the winding mechanism, and adjust the uniformity of the waste edge winding thickness by controlling the electric heating mechanism and the flattening mechanism.

[0007] Further technical solution: the tensioning mechanism includes a No. 1 lifting seat, a conveying roller, a No. 1 motor and a tensioning strip; The No. 1 lifting seat is fixedly connected to the upper end surface of the workbench, the telescopic end of the No. 1 lifting seat is fixedly connected to the No. 1 motor, the conveying roller is fixedly connected to the output shaft of the No. 1 motor, both ends of the conveying roller are spirally provided with a section of tensioning strip, and the spiral directions of the two sections of tensioning strip are opposite, when the conveying roller conveys the waste edge, the friction between the two sections of tensioning strip and the waste edge can tension the waste edge to both sides.

[0008] Further technical solution: the detection mechanism includes a No. 2 lifting seat, a fixing plate, a No. 1 video monitor and a guide roller; The bottom of the No. 2 lifting seat is fixedly connected to the upper end surface of the workbench, the telescopic end of the No. 2 lifting seat is fixedly connected to a fixed plate, two ends of the fixed plate are fixedly connected to two No. 1 video monitors, and the telescopic end of the No. 2 lifting seat is also rotatably connected to a guide roller.

[0009] Further technical solution: the adjustment mechanism includes a No. 3 lifting seat, a No. 2 motor, a limiting roller and a pull rod; The bottom of the No. 3 lifting seat is fixedly connected to the upper end surface of the workbench, the telescopic end of the No. 3 lifting seat is fixedly connected to the No. 2 motor, the output shaft of the No. 2 motor is fixedly connected to the limiting roller, and the limiting rollers are all provided with pull rods, the pull rods are spirally arranged around the limiting rollers, and the pull rods have the same spiral direction as the tensioning strip on the same side.

[0010] Further technical solution: the winding mechanism includes a support frame, a third motor and a winding roller; The support frame is fixedly connected to the upper end surface of the workbench, the No. 3 motor is fixedly connected to the support frame, and the output shaft of the No. 3 motor is fixedly connected to a winding roller.

[0011] Further technical solution: the electric heating mechanism includes an electric heating roller, a sliding seat and a bidirectional screw; The side wall of the shell is provided with a strip groove, in which two sliding seats are slidably connected, a bidirectional screw is threadedly connected between the two sliding seats, the bidirectional screw is rotatably connected to a rotating seat on the side wall of the shell, and each sliding seat is rotatably connected to an electric heating roller.

[0012] Further technical solution: the leveling mechanism includes a rotating roller, a gear transmission pair, a No. 4 motor and a scraper strip; The side wall of the air guide groove is rotatably connected to two rollers, a gear transmission pair is connected between the two rollers, the outer wall of the air guide groove is fixedly connected to a No. 4 motor, and the output shaft of the No. 4 motor is fixedly connected to one of the rollers, and the roller is provided with a plurality of scraping strips along a ring shape, the scraping strips are arc-shaped on the plane away from the roller, and the scraping strips are all made of rubber, and a plurality of exhaust holes are provided on the scraping strips.

[0013] Further technical solution: The control system comprises: A monitoring unit, comprising two No. 2 video monitors, the two No. 2 video monitors are respectively fixedly connected to the two ends of the support frame, and the No. 2 video monitors are used to monitor the diameter of the wound waste edge roll; A storage module capable of calculating the diameter difference between the two ends of the scrap edge roll based on the images captured by the two second video monitors; A processing module, which can compare the diameter difference between the two ends of the scrap edge roll with a diameter difference threshold preset by the processing module and form judgment information; A control module is capable of controlling the electric heating mechanism and the leveling mechanism.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. When the reeling mechanism reels the scrap edge, the tensioning mechanism tensions both sides of the scrap edge, and then the scrap edge passes through the detection mechanism, which detects the degree of deflection on both sides of the scrap edge. When the scrap edge deviates to one side, the adjustment mechanism corrects and resets the horizontal deflection of the scrap edge; when the scrap edge passes through the air guide slot, the flattening mechanism can flatten the scrap edge to avoid wrinkles when the scrap edge is rolled up; then the electric heating mechanism heats the scrap edge to increase the viscosity of the scrap edge when it is rolled up, so that the scrap edge can be fully fitted when it is rolled up; 2. When the winding mechanism is winding the waste edge, the control system monitors the diameters of both ends of the wound waste edge roll. When the diameters of both ends of the wound waste edge are different, the uniformity of the wound waste edge thickness is adjusted by controlling the electric heating mechanism and the flattening mechanism; 3. The scrap edge passes through two electric heating rollers, which heat the scrap edge to increase the adhesion of the scrap edge, so that the scrap edge can be fully attached when rolled up; in this process, all the hair dryers are started at the same time, and the air guide groove guides the wind force of all the hair dryers. Under the heating of the electric heating rollers, the hair dryers blow hot air on the surface of the scrap edge, so as to preheat the scrap edge in advance before the scrap edge passes through the leveling mechanism to avoid the scrap edge from breaking under the thrust of the leveling mechanism. At the same time, the wind force of the hair dryer can also cooperate with the leveling mechanism to remove the dust on the surface of the scrap edge to avoid dust adhering to the surface of the scrap edge when it passes through the electric heating mechanism; 4. The No. 4 motor drives the connected roller to rotate. Under the transmission action of the gear transmission pair, the two rollers rotate relatively. The two rollers clean the upper and lower sides of the waste edge at the same time. Then the wind force blown by the hair dryer takes away the dust on the upper and lower sides of the waste edge. Under the thrust of the roller, the waste edge passing through the two rollers can be flattened to avoid wrinkles when the waste edge is rolled up. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0016] Figure 2 It is a structural schematic diagram of the tensioning mechanism and the detection mechanism in the present invention.

[0017] Figure 3 It is a structural schematic diagram of the adjustment mechanism in the present invention.

[0018] Figure 4 It is a schematic diagram of the structural connection between the air guide groove and the shell in the present invention.

[0019] Figure 5 for Figure 4 Schematic diagram of the enlarged structure of area A in the middle.

[0020] Figure 6 It is a structural schematic diagram of the leveling mechanism in the present invention.

[0021] Figure 7 It is a schematic diagram of the connection between the transfer roller and the scraper strip in the present invention.

[0022] In the attached drawings: 1. workbench; 2. tensioning mechanism; 21. No. 1 lifting seat; 22. conveying roller; 23. No. 1 motor; 24. tensioning strip; 3. detection mechanism; 31. No. 2 lifting seat; 32. fixing plate; 33. No. 1 video monitor; 34. guide roller; 4. adjustment mechanism; 41. No. 3 lifting seat; 42. No. 2 motor; 43. limiting roller; 44. pulling strip; 5. winding mechanism; 51. supporting frame; 52. No. 3 motor; 53. winding roller; 6. electric heating mechanism; 61. electric heating roller; 62. sliding seat; 63. bidirectional screw; 7. leveling mechanism; 71. rotating roller; 72. gear transmission pair; 73. No. 4 motor; 74. scraping strip; 8. hair dryer; 9. No. 2 video monitor; 10. No. 4 lifting seat; 11. air guide groove; 12. shell; 13. rectangular groove; 14. partition; 15. strip groove. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0024] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0025] like Figure 1-Figure 7 As shown, a waste edge winding device for a three-side sealing bag making machine provided by the present invention comprises a workbench 1, and the upper end surface of the workbench 1 is sequentially provided with a tensioning mechanism 2, a detection mechanism 3, an adjustment mechanism 4 and a winding mechanism 5, the tensioning mechanism 2 is used to tension both sides of the waste edge, the detection mechanism 3 is used to detect the degree of deflection on both sides of the waste edge, the adjustment mechanism 4 is used to correct and reset the horizontal deflection of the waste edge, and the winding mechanism 5 is used to wind up the waste edge; A fourth lifting seat 10 that can be vertically extended and retracted is provided between the adjustment mechanism 4 and the reeling mechanism 5. The retractable end of the fourth lifting seat 10 is fixedly connected with an air guide groove 11. The air guide groove 11 is trapezoidal, and the opening of the air guide groove 11 facing the reeling mechanism 5 is larger than the opening at the other end of the air guide groove 11. A shell 12 is fixedly connected to the opening of the air guide groove 11 facing the reeling mechanism 5. Two rectangular grooves 13 are provided in the shell 12, and each rectangular groove 13 is provided with an electric heating mechanism 6 that can heat the waste edge; A partition plate 14 is fixedly connected to the middle of the air guide groove 11, and a leveling mechanism 7 is provided in the air guide groove 11. The leveling mechanism 7 can level the waste edge and clean the dust on the waste edge. The upper and lower end surfaces of the housing 12 are both provided with a blower 8; The control system can control the tensioning mechanism 2, the detection mechanism 3 and the adjustment mechanism 4. At the same time, the control system can also monitor the diameters of the two ends of the waste edge roll wound on the winding mechanism 5, and adjust the uniformity of the waste edge winding thickness by controlling the electric heating mechanism 6 and the flattening mechanism 7.

[0026] In this embodiment, one end of the scrap edge is wound on the winding mechanism 5, and the scrap edge passes through the air guide groove 11 and the shell 12. At the same time, the scrap edge is overlapped on the tensioning mechanism 2, the detection mechanism 3 and the adjustment mechanism 4 in sequence. When the winding mechanism 5 rolls up the scrap edge, the tensioning mechanism 2 tensions both sides of the scrap edge. Then the scrap edge passes through the detection mechanism 3, and the detection mechanism 3 detects the degree of deflection on both sides of the scrap edge. When the scrap edge deviates to one side, the adjustment mechanism 4 corrects and resets the horizontal deflection of the scrap edge. When the scrap edge passes through the air guide groove 11, the flattening mechanism 7 can flatten the scrap edge to avoid wrinkles when the scrap edge is rolled up; then the electric heating mechanism 6 heats the scrap edge to increase the viscosity of the scrap edge when it is rolled up, so that the scrap edge can be fully fitted when it is rolled up; When the winding mechanism 5 is winding the waste edge, the control system monitors the diameters of both ends of the wound waste edge roll. When the diameters of both ends of the wound waste edge are different, the uniformity of the waste edge winding thickness is adjusted by controlling the electric heating mechanism 6 and the flattening mechanism 7.

[0027] like Figure 2 As shown, a waste edge winding device for a three-side sealing bag making machine provided by the present invention is provided, wherein the tensioning mechanism 2 comprises a first lifting seat 21, a conveying roller 22, a first motor 23 and a tensioning strip 24; The No. 1 lifting seat 21 is fixedly connected to the upper end surface of the workbench 1, and the telescopic end of the No. 1 lifting seat 21 is fixedly connected to the No. 1 motor 23. The conveying roller 22 is fixedly connected to the output shaft of the No. 1 motor 23. Both ends of the conveying roller 22 are spirally provided with a section of tensioning strip 24, and the spiral directions of the two sections of tensioning strip 24 are opposite. When the conveying roller 22 conveys the waste edge, the friction between the two sections of tensioning strip 24 and the waste edge can tension the waste edge to both sides.

[0028] In this embodiment, the waste edge is in contact with the conveying roller 22 and the tension strip 24. When the No. 1 motor 23 drives the conveying roller 22 to rotate in the same direction as the winding mechanism 5, the conveying roller 22 and the tension strip 24 drive the waste edge to move forward. At the same time, driven by the friction force, the tension strips 24 at both ends of the conveying roller 22 push the waste edge to both sides to prevent the waste edge from wrinkling in the middle.

[0029] like Figure 2 As shown, a waste edge winding device for a three-side sealing bag making machine provided by the present invention is provided, wherein the detection mechanism 3 comprises a second lifting seat 31, a fixing plate 32, a first video monitor 33 and a guide roller 34; The bottom of the No. 2 lifting seat 31 is fixedly connected to the upper end surface of the workbench 1, the telescopic end of the No. 2 lifting seat 31 is fixedly connected to a fixed plate 32, two ends of the fixed plate 32 are fixedly connected to two No. 1 video monitors 33, and the telescopic end of the No. 2 lifting seat 31 is also rotatably connected to a guide roller 34.

[0030] In this embodiment, the guide roller 34 guides and supports the waste edge, and the two No. 1 video monitors 33 monitor the positions of the two sides of the waste edge respectively.

[0031] like Figure 3 As shown, a waste edge winding device for a three-side sealing bag making machine provided by the present invention is provided, wherein the adjustment mechanism 4 comprises a third lifting seat 41, a second motor 42, a limiting roller 43 and a pull strip 44; The bottom of the No. 3 lifting seat 41 is fixedly connected to the upper end surface of the workbench 1, and the telescopic end of the No. 3 lifting seat 41 is fixedly connected to the No. 2 motor 42. The output shaft of the No. 2 motor 42 is fixedly connected to the limiting roller 43. The limiting rollers 43 are all provided with pull rods 44. The pull rods 44 are spirally arranged around the limiting rollers 43, and the pull rods 44 have the same spiral direction as the tensioning strip 24 on the same side.

[0032] In this embodiment, when the waste edge deflects to one side, the control system controls the No. 3 lifting seat 41 on the other side of the waste edge to extend, and the contact force between the pull rod 44 on the other side and the waste edge increases. The pull rod 44 can pull the waste edge toward the other side, thereby repositioning the waste edge and avoiding the waste edge from deviating to one side during the winding process. like Figure 1 As shown, a waste edge winding device for a three-side sealing bag making machine provided by the present invention is provided, wherein the winding mechanism 5 comprises a support frame 51, a third motor 52 and a winding roller 53; The support frame 51 is fixedly connected to the upper end surface of the workbench 1 , the third motor 52 is fixedly connected to the support frame 51 , and the output shaft of the third motor 52 is fixedly connected to a winding roller 53 .

[0033] In this embodiment, the third motor 52 is started, and the third motor 52 drives the winding roller 53 to wind up the waste edge.

[0034] like Figure 4 and Figure 5 As shown, a waste edge winding device for a three-side sealing bag making machine provided by the present invention is provided, wherein the electric heating mechanism 6 comprises an electric heating roller 61, a sliding seat 62 and a bidirectional screw 63; The side wall of the shell 12 is provided with a strip groove 15, in which two sliding seats 62 are slidably connected, a bidirectional screw 63 is threadedly connected between the two sliding seats 62, and the bidirectional screw 63 is rotatably connected to the rotating seat on the side wall of the shell 12, and each sliding seat 62 is rotatably connected to an electric heating roller 61.

[0035] In this embodiment, the scrap edge passes through two electric heating rollers 61, and the two electric heating rollers 61 heat the scrap edge passing through to increase the adhesion of the scrap edge so that the scrap edge can be fully attached when it is rolled up; During this process, all the hair dryers 8 are started at the same time, and the air guide groove 11 guides the wind force of all the hair dryers 8. Under the heating of the electric heating roller 61, the hair dryers 8 blow hot air on the surface of the waste edge, so as to preheat the waste edge in advance before the waste edge passes through the leveling mechanism 7, so as to avoid the waste edge from breaking under the thrust of the leveling mechanism 7. At the same time, the wind force of the hair dryers 8 can also cooperate with the leveling mechanism 7 to remove dust from the surface of the waste edge, so as to avoid dust adhering to the surface of the waste edge when the waste edge passes through the electric heating mechanism 6.

[0036] like Figure 6 and Figure 7 As shown, a waste edge winding device for a three-side sealing bag making machine provided by the present invention is provided, wherein the flattening mechanism 7 comprises a rotating roller 71, a gear transmission pair 72, a fourth motor 73 and a scraper 74; The side wall of the air guide groove 11 is rotatably connected to two rollers 71, and a gear transmission pair 72 is connected between the two rollers 71. The outer wall of the air guide groove 11 is fixedly connected to a No. 4 motor 73, and the output shaft of the No. 4 motor 73 is fixedly connected to one of the rollers 71. The roller 71 is provided with a plurality of scraper strips 74 along a ring shape. The plane of the scraper strips 74 away from the roller 71 is arc-shaped, and the scraper strips 74 are all made of rubber, and a plurality of exhaust holes are provided on the scraper strips 74.

[0037] In this embodiment, the No. 4 motor 73 is started, and the No. 4 motor 73 drives the connected roller 71 to rotate. Under the transmission action of the gear transmission pair 72, the two rollers 71 rotate relative to each other, and the two rollers 71 clean the upper and lower sides of the waste edge at the same time. Then the wind force blown by the hair dryer 8 takes away the dust on the upper and lower sides of the waste edge. Under the thrust of the roller 71, the waste edge passing between the two rollers 71 can be flattened to avoid wrinkles when the waste edge is rolled up.

[0038] A waste edge winding device for a three-side sealing bag making machine, the control system comprising: The monitoring unit includes two No. 2 video monitors 9, which are respectively fixedly connected to the two ends of the support frame 51, and the No. 2 video monitors 9 are used to monitor the diameter of the wound waste edge roll; A storage module capable of calculating the diameter difference between the two ends of the scrap edge roll based on the images captured by the two second video monitors 9; A processing module, which can compare the diameter difference between the two ends of the scrap edge roll with a diameter difference threshold preset by the processing module and form judgment information; The control module is capable of controlling the electric heating mechanism 6 and the leveling mechanism 7 .

[0039] In this embodiment, when the diameter difference between the two ends of the waste edge roll exceeds the preset diameter difference threshold, the control module controls the two electric heating rollers 61 in the rectangular groove 13 corresponding to the larger diameter side of the waste edge roll to increase the power, so that the adhesion of the waste edges passing through the rectangular groove 13 is increased, and the uniformity of the rolling thickness at both ends of the waste edges is increased when the waste edges are rolled up; at the same time, the control module controls the No. 4 motor 73 to drive the rotating roller 71 to increase the rotation speed, thereby increasing the cleaning effect of the dust on the surface of the waste edges.

[0040] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

[0041] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A waste edge winding device for a three-side sealing bag making machine, comprising a workbench (1), characterized in that: The upper end surface of the workbench (1) is provided with a tensioning mechanism (2), a detection mechanism (3), an adjustment mechanism (4) and a winding mechanism (5) in sequence, the tensioning mechanism (2) being used to tension both sides of the waste edge, the detection mechanism (3) being used to detect the degree of deflection on both sides of the waste edge, the adjustment mechanism (4) being used to correct and reset the horizontal deflection of the waste edge, and the winding mechanism (5) being used to wind up the waste edge; A fourth lifting seat (10) that can be vertically extended and retracted is provided between the adjustment mechanism (4) and the reeling mechanism (5); a retractable end of the fourth lifting seat (10) is fixedly connected to an air guide groove (11); the air guide groove (11) is trapezoidal, and an opening of the air guide groove (11) facing the reeling mechanism (5) is larger than an opening of the other end of the air guide groove (11); a shell (12) is fixedly connected to the opening of the air guide groove (11) facing the reeling mechanism (5); two rectangular grooves (13) are provided in the shell (12), and each rectangular groove (13) is provided with an electric heating mechanism (6) capable of heating the waste edge; A partition plate (14) is fixedly connected to the middle of the air guide groove (11), and a leveling mechanism (7) is provided in the air guide groove (11). The leveling mechanism (7) is capable of leveling the waste edge and cleaning the dust on the waste edge. The upper and lower end surfaces of the shell (12) are both provided with a blower (8); A control system is capable of controlling a tensioning mechanism (2), a detection mechanism (3) and an adjustment mechanism (4). The control system is also capable of monitoring the diameters of both ends of the waste edge roll wound up on a winding mechanism (5), and adjusting the uniformity of the waste edge winding thickness by controlling an electric heating mechanism (6) and a flattening mechanism (7).

2. The waste edge winding device for a three-side sealing bag making machine according to claim 1, characterized in that: The tensioning mechanism (2) comprises a No. 1 lifting seat (21), a conveying roller (22), a No. 1 motor (23) and a tensioning strip (24); The No. 1 lifting seat (21) is fixedly connected to the upper end surface of the workbench (1); the telescopic end of the No. 1 lifting seat (21) is fixedly connected to the No. 1 motor (23); the conveying roller (22) is fixedly connected to the output shaft of the No. 1 motor (23); both ends of the conveying roller (22) are spirally provided with a tensioning strip (24), and the spiral directions of the two tensioning strips (24) are opposite. When the conveying roller (22) conveys the waste edge, the friction between the two tensioning strips (24) and the waste edge can tension the waste edge to both sides.

3. The waste edge winding device for a three-side sealing bag making machine according to claim 1, characterized in that: The detection mechanism (3) comprises a No. 2 lifting seat (31), a fixing plate (32), a No. 1 video monitor (33) and a guide roller (34); The bottom of the No. 2 lifting seat (31) is fixedly connected to the upper end surface of the workbench (1); the telescopic end of the No. 2 lifting seat (31) is fixedly connected to a fixed plate (32); two ends of the fixed plate (32) are fixedly connected to two No. 1 video monitors (33); and the telescopic end of the No. 2 lifting seat (31) is also rotatably connected to a guide roller (34).

4. The waste edge winding device for a three-side sealing bag making machine according to claim 1, characterized in that: The adjustment mechanism (4) comprises a No. 3 lifting seat (41), a No. 2 motor (42), a limiting roller (43) and a pull rod (44); The bottom of the No. 3 lifting seat (41) is fixedly connected to the upper end surface of the workbench (1); the telescopic end of the No. 3 lifting seat (41) is fixedly connected to the No. 2 motor (42); the output shaft of the No. 2 motor (42) is fixedly connected to a limit roller (43); the limit roller (43) is provided with a pull rod (44); the pull rod (44) is spirally arranged around the limit roller (43); and the pull rod (44) and the tensioning strip (24) on the same side have the same spiral direction.

5. The waste edge winding device for a three-side sealing bag making machine according to claim 1, characterized in that: The winding mechanism (5) comprises a support frame (51), a third motor (52) and a winding roller (53); The support frame (51) is fixedly connected to the upper end surface of the workbench (1), the third motor (52) is fixedly connected to the support frame (51), and the output shaft of the third motor (52) is fixedly connected to a winding roller (53).

6. The waste edge winding device for a three-side sealing bag making machine according to claim 1, characterized in that: The electric heating mechanism (6) comprises an electric heating roller (61), a sliding seat (62) and a bidirectional screw (63); The side wall of the shell (12) is provided with a strip groove (15), two sliding seats (62) are slidably connected in the strip groove (15), a bidirectional screw (63) is threadedly connected between the two sliding seats (62), the bidirectional screw (63) is rotatably connected to a rotating seat on the side wall of the shell (12), and each sliding seat (62) is rotatably connected to an electric heating roller (61).

7. The waste edge winding device for a three-side sealing bag making machine according to claim 1, characterized in that: The leveling mechanism (7) comprises a rotating roller (71), a gear transmission pair (72), a fourth motor (73) and a scraper (74); The side wall of the air guide groove (11) is rotatably connected to two rollers (71), a gear transmission pair (72) is connected between the two rollers (71), the outer wall of the air guide groove (11) is fixedly connected to a fourth motor (73), and the output shaft of the fourth motor (73) is fixedly connected to one of the rollers (71), and the roller (71) is provided with a plurality of scraping strips (74) along a ring shape, the plane of the scraping strips (74) facing away from the roller (71) is arc-shaped, and the scraping strips (74) are all made of rubber, and a plurality of exhaust holes are provided on the scraping strips (74).

8. The waste edge winding device for a three-side sealing bag making machine according to claim 5, characterized in that: The control system comprises: A monitoring unit, comprising two No. 2 video monitors (9), the two No. 2 video monitors (9) being fixedly connected to two ends of the support frame (51), respectively, and the No. 2 video monitors (9) being used to monitor the diameter of the wound waste edge roll; A storage module capable of calculating the diameter difference between the two ends of the scrap edge roll based on the images captured by the two second video monitors (9); A processing module, which can compare the diameter difference between the two ends of the scrap edge roll with a diameter difference threshold preset by the processing module and form judgment information; A control module capable of controlling the electric heating mechanism (6) and the leveling mechanism (7).

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