Paper bag inserting paper strip device

Abstract

The invention discloses a paper bag inserting paper strip device, which belongs to the field of paper bag bottom gluing machines and is used for inserting valve mouth paper into paper bags for gluing, solving the technical problem that the paper bag cannot be opened and closed normally due to the large width of the clamped valve mouth paper. The device comprises a frame and a reversing mechanism, a traction and cutting mechanism, a paper feeding mechanism, a pleating roller, a sticker cylinder and a gluing mechanism installed along the upper and lower sides of the frame. The reversing mechanism, the traction and cutting mechanism and the paper feeding mechanism are arranged in sequence along the paper tape transmission direction. The paper tape is pressed into the sticker cylinder by the pleating roller to be clamped and broken, and is input into the gluing mechanism through the sticker cylinder. The paper feeding mechanism can move relative to the pleating roller and the sticker cylinder.

Description

Technical Field

[0001] The invention belongs to the field of paper bag bottom gluing machines, and in particular relates to a vertical paper bag paper strip inserting device. Background Art

[0002] Paper bags for granular and powdered products require a valve cut into the seal. This valve connects to the interior of the bag, allowing material to be directly poured into the bag. To enhance the rigidity and sealing properties of the valve, a layer of valve paper is often applied to the inside of the valve. The paper bag insertion device pulls and cuts a roll of paper tape into valve paper, clamps each piece of valve paper, inserts it into each paper bag, and glues and bonds it. The head of the paper tape is folded, clamped, and then conveyed to the appropriate location in the bag. For both cylindrical valve-mouth paper bags and large-bottom, small-valve-mouth paper bags, the valve paper tape must first be formed into a cylindrical shape, then cut into pieces and inserted into the appropriate location in the bag. If the folded head of the paper tape is too wide, it will affect the normal opening and closing of the bag. Therefore, for these craft paper bags, the head of the paper tape must be folded to the smallest possible width, so that the area where the tape head is clamped forms a zero fold. Summary of the Invention

[0003] The object of the present invention is to provide a paper bag inserting paper strip device, which ensures that the valve paper can be attached to the paper bag and the cylindrical valve of the paper bag can be opened and closed normally.

[0004] According to one aspect of the present invention, the paper bag inserting paper strip device includes a frame and a reversing mechanism, a traction and cutting mechanism, a paper feeding mechanism, a pleating roller, a sticker cylinder and a gluing mechanism installed along the upper and lower sides of the frame. The reversing mechanism, the traction and cutting mechanism, and the paper feeding mechanism are arranged in sequence along the paper tape transmission direction. The paper tape is pressed into the sticker cylinder by the pleating roller to be clamped and broken, and is input into the gluing mechanism through the sticker cylinder. The paper feeding mechanism can move relative to the pleating roller and the sticker cylinder.

[0005] The frame includes a high top plate, a low top plate and a bottom plate arranged in parallel from top to bottom. The paper feeding mechanism includes a transmission mechanism and a moving mechanism. A part of the transmission mechanism is installed between the bottom plate and the high top plate, and the other part of the transmission mechanism is installed on the moving mechanism. The moving mechanism can move relative to the sticker tube. The transmission mechanism is provided with a paper feeding channel. A paper cutting channel with variable length is provided between the paper feeding channel and the sticker tube.

[0006] The moving mechanism includes a slide, which is parallel to and slidably mounted on the bottom plate, and the other part of the transmission mechanism is mounted on the slide, and the slide is arranged on one side of the folding roller and the sticker roll. The transmission mechanism includes a first belt transmission mechanism and a second belt transmission mechanism, the first belt transmission mechanism is on one side of the sticker roll, and the second belt transmission mechanism is on one side of the folding roller. The first belt transmission mechanism includes a first transmission belt, a first traction roller and a first driven roller, the first driven roller is vertically mounted between the bottom plate and the high top plate, the first traction roller is vertically mounted between the slide and the low top plate, the first transmission belt is mounted on the first traction roller and the first driven roller, and is tensioned by the first tensioning roller, the first tensioning roller is vertically mounted on the bottom plate, the second belt transmission mechanism includes a second transmission belt, a second traction roller and a second driven roller, the second driven roller is vertically mounted between the bottom plate and the high top plate, the second traction roller is vertically mounted between the slide and the low top plate, the second transmission belt is mounted on the second traction roller and the second driven roller, and is tensioned by the second tensioning roller, the second tensioning roller is vertically mounted on the bottom plate, and the overlapping part of the first transmission belt and the second transmission belt is a paper feeding channel.

[0007] The first transmission belt is provided with a first eccentric roller, a first passing roller and a second passing roller between the first traction roller and the first driven roller. The first eccentric roller and the first passing roller are both vertically installed between the slide plate and the low top plate, and the second passing roller is vertically installed between the bottom plate and the high top plate. The straight sections of the first transmission belt installed on the first eccentric roller and the first passing roller, the straight sections of the first transmission belt installed on the first passing roller and the first traction roller, and the straight sections of the first transmission belt installed on the first traction roller and the first tensioning roller are parallel to each other; the second belt transmission mechanism is provided with a second eccentric roller and a third passing roller between the second traction roller and the second driven roller. The passing roller, the second driven roller is an eccentric roller, the second eccentric roller is vertically installed between the slide plate and the low top plate, the third passing roller is vertically installed between the bottom plate and the high top plate, the second transmission belt is installed on the straight section of the second driven roller and the second eccentric roller, the second transmission belt is installed on the straight section of the second eccentric roller and the second traction roller, and the second transmission belt is installed on the straight section of the second traction roller and the second tensioning roller. The three are parallel to each other, and the straight section of the second transmission belt installed on the second driven roller and the second eccentric roller and the straight section of the first transmission belt installed on the first eccentric roller and the first passing roller overlaps to form a paper feeding channel.

[0008] The traction cutter mechanism includes a traction roller, a paper pressing roller, a movable knife assembly, a fixed knife assembly, a pressure roller, an adjustable pressure roller and a film offset roller vertically installed between the bottom plate and the low top plate. The paper tape passes between the traction roller and the paper pressing roller, then passes between the movable knife assembly and the fixed knife assembly, passes through the film offset roller, and passes between the pressure roller and the adjustable pressure roller to be input into the paper feeding channel.

[0009] The reversing mechanism includes an oblique roller, a fourth roller and a fifth roller. The oblique roller is connected between the high top plate and the bottom plate, the fourth roller is vertically installed on the bottom plate, and the fifth roller is vertical between the bottom plate and the low top plate. The paper tape is input between the traction roller and the paper pressing roller through the oblique roller, the fourth roller and the fifth roller in sequence.

[0010] The gluing mechanism includes a glue mixing roller, a glue upper roller, a glue spreading wheel and a bracket. The glue spreading wheel is rotatably installed between the bottom plate and the high top plate. The glue mixing roller and the glue upper roller are both rotatably installed on the bracket. The glue mixing roller and the glue upper roller are in contact with each other. The bracket is provided with an adjustment component for adjusting the gap between the glue mixing roller and the glue upper roller. The bracket is rotatably installed between the bottom plate and the high top plate and can make the glue upper roller fit against the glue spreading wheel.

[0011] The bracket includes an upper support plate and a lower support plate. The rubber mixing roller and the upper rubber roller can be rotatably installed between the upper support plate and the lower support plate. One end of the upper support plate and the lower support plate are connected by a first rotating shaft.

[0012] The adjustment assembly includes a handwheel and a screw, the handwheel is arranged at one end of the screw, and the two ends of the rubber mixing roller are respectively slidably installed in the slide groove through a rotating seat, and each rotating seat is correspondingly connected to the screw.

[0013] Both ends of the glue spreading wheel are connected to a second rotating shaft through a swing arm. A partition is provided on one side of the glue spreading wheel, and the partition is installed on the swing arm.

[0014] The beneficial effects of the present invention are as follows: through precise control of a knife edge and servo adjustment of the front and rear positions of the conveyor tape, and adjustment of the length of the tape entering the paper clamping port, the head of the tape forms a zero fold position between the folding roller and the sticker barrel, ensuring normal opening and closing of the paper bag after the valve paper is affixed. The gap between the glue mixing roller and the glue application roller is adjustable. By adjusting the gap between the two, the amount of glue applied is controlled, increasing the glue utilization rate and the sticking effect of the valve paper. The bracket assembles the glue mixing roller and the glue application roller into a whole, and the whole swings in a balanced manner to achieve a uniform gluing effect. The swing of the glue spreading wheel can suspend gluing of the sticker barrel to cope with different working conditions and prevent glue from being smeared on the sticker barrel surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a three-dimensional schematic diagram of the paper bag inserting paper strip device of the present invention;

[0016] Figure 2 for Figure 1 A schematic top view of the paper bag insertion paper strip device (excluding the high top plate and the low top plate);

[0017] Figure 3 for Figure 1 A perspective schematic diagram of the paper feeding mechanism shown;

[0018] Figure 4 for Figure 1 A three-dimensional schematic diagram of the paper feeding mechanism shown in another perspective;

[0019] Figure 5 for Figure 1 A three-dimensional schematic diagram of the gluing mechanism shown in one perspective;

[0020] Figure 6 for Figure 1 A three-dimensional schematic diagram of the gluing mechanism shown from another perspective. DETAILED DESCRIPTION

[0021] The present invention will be further described in detail below with reference to the accompanying drawings.

[0022] like Figure 1 、 2 As shown, the paper bag inserting device includes a reversing mechanism 100, a traction and cutting mechanism 200, a paper feed mechanism 300, a pleating roller 4, a sticker drum 5, and a gluing mechanism 600. The frame comprises a high top plate 10, a low top plate 11, and a bottom plate 1, arranged in parallel from top to bottom. The rolled paper strip is fed through the reversing mechanism 100, the traction and cutting mechanism 200, and the paper feed mechanism 300. It then passes between the rotating pleating roller 4 and the sticker drum 5, and is then fed into the gluing mechanism 600 through the sticker drum 5.

[0023] The reversing mechanism 100 includes an oblique roller 101, a fourth roller 102, and a fifth roller 103. The oblique roller 101 is connected between the upper plate 10 and the lower plate 1. The fourth roller 102 is mounted perpendicular to the lower plate 1. The fifth roller 103 is positioned perpendicularly between the lower plate 1 and the lower plate 11. To ensure a tight seal at the valve port, the valve port paper and film must be laminated. The film is typically a plastic film such as PE. The paper and film are first reversed by the oblique roller 101 before being fed between the fourth roller 102 and the fifth roller 103 and then fed between the traction roller 201 and the paper pressing roller 202.

[0024] The traction and cutting mechanism 200 includes a traction roller 201, a pressure roller 202, a movable blade assembly 203, a fixed blade assembly 204, a pressure roller 205, an adjustable pressure roller 206, and a film offset roller 207. The second servo motor 801 of the fourth belt drive mechanism 800 drives the third pulley 804 via a belt drive, which in turn drives the pressure roller 205. The pressure roller 205 then drives the adjustable pressure roller 206 via a gear transmission. The gap between the adjustable pressure roller 206 and the pressure roller 206 is adjusted via a screw mechanism, thereby adjusting the degree of pressure of the adjustable pressure roller 206 against the pressure roller 205. The movable blade assembly 203 is driven by a third servo motor 2031 mounted on the lower top plate 11. The paper tape and film pass between the traction roller 201 and the paper pressing roller 202, and are driven to be transported under the traction of the traction roller 201. During the rotation of the movable knife assembly 203, the blade of the movable knife assembly 203 contacts the blade of the fixed knife assembly 204, and the paper tape and film are cut through tangential motion. The paper tape and film are offset through the film offset roller 207, and the paper tape and film are fitted together through the abutting pressure roller 205 and the adjustable pressure roller 206, and are finally input into the paper feeding channel 9.

[0025] like Figure 1 、 3 As shown in Figure 4, the paper feeding mechanism 300 includes a transmission mechanism 2 and a moving mechanism 3. The folding roller 4 and the sticker tube 5 are vertically installed between the bottom plate 1 and the high top plate 10 and abut against each other. The high top plate 10 is installed with a gear transmission mechanism 700. The first servo motor 701 of the gear transmission mechanism 700 drives the first gear 702 through gear transmission to drive the folding roller 4 to rotate and drives the second gear 703 to rotate the sticker tube 5. The folding roller 4 includes a folding cylinder body 41, a folding shaft 42 is provided along the folding cylinder body 41, and a folding piece 43 is fixed along the folding shaft 42. The folding piece 43 extends from the folding cylinder body 41, and a cam assembly is provided at the end of the folding cylinder body 41 to control the swing of the folding piece 43. The sticker drum 5 includes a sticker body 51, along which a clamping opening 52 is provided. This clamping opening 52 is provided with a paper clamping shaft 53, and a clip 54 is fixed along the paper clamping shaft 53. A cam assembly is provided at the end of the sticker body 51 to control the swinging of the clip 54. The reciprocating swinging of the clip 54 controls the opening and closing of the clamp 52. A paper pressing belt 55 is provided around the sticker body 51, and the clip 54 is provided with a notch 56 for the paper pressing belt 55 to pass through. The cam assembly of the folding roller 4 and the cam assembly of the sticker drum 5 share the same control principle. The cam assembly comprises a cam 6, a driven wheel 7, and a swing arm 8. The cam 6 abuts against the driven wheel 7, which is connected to the swing arm 8. The swing arm 8 is connected to the folding shaft 42 or the paper clamping shaft 53. A pneumatic cylinder drives the cam 6 to rotate, which pushes the driven wheel 7 and drives the swing arm 8 to swing, thereby causing the folding shaft 42 and folding flap 43 or the paper clamping shaft 53 and clip 54 to swing.

[0026] like Figure 1As shown, the moving mechanism 3 includes a slide 31, which is positioned to the right of the folding roller 4 and the paper roll 5. Slide 31 is parallel to the base plate 1 and is tilted relative to the base plate 1. Sliders 32 are mounted on two parallel guide rails 33 extending along the length of slide 31. Each guide rail 33 is mounted on the base plate 1. A servo motor 36 drives a belt drive mechanism 34, which in turn drives a screw mechanism 35. This mechanism drives the sliders 32 on slide 31 along the guide rails 33, thereby enabling slide 31 to slide relative to the base plate 1. The sliding position of slide 31 relative to the base plate 1 can be flexibly adjusted according to the length of the paper. This process is driven by a motor, making operation simple and labor-saving.

[0027] like Figure 1 、 2 As shown in Figures 3 and 4, the transmission mechanism 2 includes a first belt transmission mechanism 21 and a second belt transmission mechanism 22. The first belt transmission mechanism 21 is located on one side of the sticker drum 5. The first belt transmission mechanism 21 includes a first transmission belt 211. A first driven roller 212, a first eccentric roller 213, a first passing roller 214, a first traction roller 215, a first tensioning roller 216, and a second passing roller 217 are installed in sequence counterclockwise along the first transmission belt 211. The first driven roller 212 and the second passing roller 217 are both installed vertically between the bottom plate 1 and the high top plate 10, while the first tensioning roller 216 is installed vertically on the bottom plate 1. The first eccentric roller 213, the first passing roller 214, and the first traction roller 215 are all installed vertically between the slide plate 31 and the low top plate 11. The transmission part of the first transmission belt 211 where the first driven roller 212, the first eccentric roller 213 and the first passing roller 214 are located is linear, the traction part of the first transmission belt 211 where the first passing roller 214, the first traction roller 215 and the first tensioning roller 216 are located is inverted U-shape, and the transmission part of the first transmission belt 211 where the first tensioning roller 216, the second passing roller 217 and the first driven roller 212 are located is triangular.

[0028] The second belt drive mechanism 22 is located on the side of the pleating roller 4. It comprises a second transmission belt 221. Along the clockwise direction of the second transmission belt 221, a second driven roller 222, a second eccentric roller 223, a second traction roller 224, a second tensioning roller 225, and a third roller 226 are mounted. The second driven roller 222 is an eccentric roller. Both the second driven roller 222 and the third roller 226 are mounted perpendicularly between the bottom plate 1 and the high top plate 10. The second tensioning roller 225 is mounted perpendicularly to the bottom plate 1. The second eccentric roller 223 and the second traction roller 224 are mounted perpendicularly between the slide plate 31 and the low top plate 11. The intersection of the straight transmission section of the second transmission belt 221 where the second driven roller 222 and the second eccentric roller 223 are located and the straight transmission section of the first transmission belt 211 where the first eccentric roller 213 and the first overpass roller 214 are located forms the paper feed channel 9. The paper feed channel 9 is located opposite the abutment point between the folding roller 4 and the sticker roller 5. The traction section of the second transmission belt 221 where the second eccentric roller 223, the second traction roller 224, and the second tensioning roller 225 are located is in an inverted U shape, while the transmission section of the second transmission belt 221 where the second tensioning roller 225, the third overpass roller 226, and the second driven roller 222 are located is in a triangular shape.

[0029] like Figure 1 、 2 As shown in Figures 3 and 4, the low top plate 11 is provided with a fourth belt transmission mechanism 800. The second servo motor 801 of the fourth belt transmission mechanism 800 drives the first pulley 802 through belt transmission to drive the first traction roller 215 to rotate to generate traction power, and drives the second pulley 803 to drive the second traction roller 224 to rotate to generate traction power, so that the first transmission belt 211 and the second transmission belt 221 compress the paper tape and transmit it to between the folding cylinder 41 and the sticker cylinder 51.

[0030] The first passing roller 214 and the first traction roller 215 move together with the slide 31, and the length of the first transmission belt 211 from the first passing roller 214 to the first traction roller 215 remains unchanged and is parallel to the paper feeding channel 9, and is also parallel to the first transmission belt 211 from the first traction roller 215 to the third passing roller 216. Therefore, the length of the first transmission belt 211 remains unchanged during the sliding of the slide 31; similarly, the second eccentric roller 223 and the second traction roller 224 move together with the slide 31, and the length of the second transmission belt 221 remains unchanged during the sliding of the slide 31.

[0031] Furthermore, by adjusting the first eccentric roller 213, the paper tape is pressed tightly against the middle position between the first eccentric roller 213 and the first passing roller 214 in the paper feed channel 9. The folding cylinder 41 and the sticker cylinder 51 rotate synchronously, and the folding blade 43 swings to press the head of the paper tape into the clamping opening 52. Simultaneously, the clamping blade 54 swings to close the clamping opening 52, thereby clamping the end of the paper tape in the clamping opening 52. Because the conveying speed of the first transmission belt 211 and the second transmission belt 221 is lower than the rotation speed of the folding roller 4 and the sticker cylinder 5, due to the speed difference between the two, the paper tape is broken into valve-shaped paper pieces along the cutting edge position in the paper cutting channel 12 from the first eccentric roller 213 to the sticker cylinder 51. The length of the valve-shaped paper pieces varies depending on the size of the paper bag. By sliding and adjusting the position of the slide 31 relative to the base plate 1, the length of the paper cutting path 12 is controlled, thereby ensuring that there is only one cutting edge between the first eccentric roller 213 and the sticker drum 51, preventing the situation where two valve-mouth paper pieces are formed after the paper strip is broken. The sticker drum 51 clamps the valve-mouth paper piece and transports it to the location of the paper bag. Once it is in place, the clamp 54 is released, and the paper pressing belt 55 disengages from the notch 56. The paper pressing belt 55 then carries the valve-mouth paper piece out of the clamp 52, transporting it to the corresponding part of the paper bag and applying glue to it.

[0032] Through precise control of a knife edge and servo adjustment of the front and rear positions of the conveyor tape, and adjustment of the length of the tape entering the paper clamping mouth, the head of the paper tape forms a zero fold position between the folding roller 4 and the sticker tube 5, ensuring the normal opening and closing of the paper bag after the valve mouth paper is pasted.

[0033] like Figure 1 、 5 As shown in Figures 6 and 7, the gluing device 600 includes a glue mixing roller 601, a gluing roller 602, and a gluing wheel 603. The sticker drum 5 and the gluing wheel 603 are both mounted between the upper plate 10 and the bottom plate 1. The first servo motor 701 of the gear transmission mechanism 700 drives the third gear 704 through gear transmission to rotate the gluing wheel 603. The gluing wheel 603 is mounted on both ends of the rotating shaft. One end of the two gluing plates 6031 is connected by a second rotating shaft 6032, and the ends of the second rotating shaft 6032 are respectively mounted on the upper plate 10 and the bottom plate 1. The upper gluing plate 6031 is connected to a first cylinder 6033, which is mounted on the upper plate 10. The first cylinder 6033 drives the swing plate 6031 to swing relative to the second rotating shaft 6032. During the swinging process, the swing plate 6031 drives the glue spreading wheel 603 to approach the sticker tube 5 until it is attached to the sticker tube 5, thereby spreading glue on the valve paper on the sticker tube 5; when the front end of the paper bag bottom gluing machine detects that there is no paper bag or the bottom of the paper bag is not opened normally, the swing plate 6031 is driven to swing by the first cylinder 6033, and the swing plate 6031 drives the glue spreading wheel 603 to move away from the sticker tube 5, and the glue spreading is suspended, so that glue will not be smeared on the sticker tube 5.

[0034] A glue receiving tray 604 is provided below the glue spreading wheel 603. The receiving tray 604 is mounted on the bottom plate 1 and has a glue return port 6041. A partition 6034 is provided on one side of the glue spreading wheel 603. The partition 6034 is mounted between the upper and lower swing plates 6031, separating the glue spreading wheel 603 from the folding roller 4. The partition 6034 is used to block glue thrown off the surface of the glue spreading wheel 603, preventing it from being thrown onto the folding roller 4. The thrown glue is collected in the glue receiving tray 604 and recycled through the glue return port 6041.

[0035] The bracket includes an upper support plate 605 and a lower support plate 606. The glue mixing roller 601 and the upper glue roller 602 are both mounted between the upper support plate 605 and the lower support plate 606. Glue baffles 6021 are provided on both sides of the upper glue roller 602. These baffles 6021 are installed between the upper support plate 606 and the lower support plate 606. These baffles prevent the glue on the upper glue roller 602 from being thrown out along the sides, instead flowing along the lower end of the upper glue roller 602 into the glue receiving tray 604. A baffle 6011 is provided at the bottom of the glue mixing roller 601. The baffle 6011 is mounted on the lower support plate 606, thereby preventing the glue below the glue mixing roller 601 from being thrown out and instead flowing along the lower end of the glue mixing roller 601 and the lower support plate 606 into the glue receiving tray 604. One end of the upper support plate 605 and the lower support plate 606 are connected by a first rotating shaft 6061. The ends of the first rotating shaft 6061 are respectively mounted on the high roof 10 and the bottom plate 1. The upper support plate 605 is connected to a second cylinder 6051, which is mounted on the high roof 10. The bracket assembles the glue mixing roller 601 and the glue application roller 602 into a whole. The second cylinder 6051 drives the bracket to swing in a balanced manner relative to the first rotating shaft 6061. When the bracket swings until the glue application roller 602 is in contact with the glue spreading wheel 603, glue application begins. This ensures that the glue mixing roller 601 fully and evenly applies glue to the glue application roller 602 before evenly applying glue to the glue spreading wheel 603.

[0036] The mixing roller 601 and the top glue roller 602 are connected to each other through gear meshing. The gear 6021 on the top glue roller 602 is connected to the fifth belt transmission mechanism 607. The fifth belt transmission mechanism 607 is driven by the fourth servo motor 6071. The mixing roller 601 and the top glue roller 602 are in contact with each other. The adjustment component 608 includes a handwheel 6084 and a screw 6081. The handwheel 6084 is provided at one end of the screw 6081. The two ends of the glue mixing roller 601 are respectively slidably mounted on the slide 6083 through a rotating seat 6082. Each rotating seat 6082 is correspondingly connected to the other end of the screw 6081. The handwheel 6084 is rotated to drive the rotating seat 6082 to slide along the slide 6083 through the spiral transmission of the screw 6081. The rotating seat 6082 drives the glue mixing roller 601 to deviate relative to the upper glue roller 602, thereby achieving the purpose of adjusting the gap between the glue mixing roller 601 and the upper glue roller 602, and then controlling the amount of glue entering the upper glue roller 602 through the glue mixing roller 601.

[0037] The above are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present invention, which all fall within the scope of protection of the present invention.

Claims

1. A paper bag inserting paper strip device, characterized in that: The invention comprises a frame and a reversing mechanism (100), a traction cutter mechanism (200), a paper feeding mechanism (300), a folding roller (4), a sticker roll (5) and a gluing mechanism (600) installed along the upper and lower sides of the frame. The reversing mechanism (100), the traction cutter mechanism (200) and the paper feeding mechanism (300) are arranged in sequence along the paper tape transmission direction. The paper tape is pressed into the sticker roll (5) by the folding roller (4), clamped and broken, and input into the gluing mechanism (600) by the sticker roll (5). The paper feeding mechanism (300) can move relative to the sticker roll (5). The frame comprises a high top plate (10), a low top plate (11) and a bottom plate (1) arranged in parallel from top to bottom. The paper feeding mechanism (300) comprises a transmission mechanism (2 ) and a moving mechanism (3), a part of the transmission mechanism (2) is installed between the bottom plate (1) and the high top plate (10), the other part of the transmission mechanism (2) is installed on the moving mechanism (3), the moving mechanism (3) can move relative to the sticker roll (5), the transmission mechanism (2) is provided with a paper feeding channel (9), a length-variable paper cutting channel (12) is provided between the paper feeding channel (9) and the sticker roll (5), the moving mechanism (3) includes a slide plate (31), the slide plate (31) is parallel and slidably installed on the bottom plate (1), the other part of the transmission mechanism (2) is installed on the slide plate (31), the slide plate (31) is provided on one side of the folding roller (4) and the sticker roll (5), the transmission mechanism (2) includes A first belt transmission mechanism (21) and a second belt transmission mechanism (22), wherein the first belt transmission mechanism (21) is on one side of the sticker roller (5), and the second belt transmission mechanism (22) is on one side of the folding roller (4), wherein the first belt transmission mechanism (21) comprises a first transmission belt (211), a first traction roller (215) and a first driven roller (212), wherein the first driven roller (212) is vertically installed between the bottom plate (1) and the high top plate (10), and the first traction roller (215) is vertically installed between the slide plate (31) and the low top plate (11), and the first transmission belt (211) is installed on the first traction roller (215) and the first driven roller (212), and is tensioned by the first tensioning roller (216). The roller (216) is vertically mounted on the bottom plate (1). The second belt transmission mechanism (22) includes a second transmission belt (221), a second traction roller (224) and a second driven roller (222). The second driven roller (222) is vertically mounted between the bottom plate (1) and the high top plate (10). The second traction roller (224) is vertically mounted between the slide plate (31) and the low top plate (11). The second transmission belt (221) is mounted on the second traction roller (224) and the second driven roller (222) and is tensioned by a second tensioning roller (225). The second tensioning roller (225) is vertically mounted on the bottom plate (1). The overlapping portion of the first transmission belt (211) and the second transmission belt (221) is a paper feeding channel (9).The gluing mechanism (600) includes a glue mixing roller (601), a glue top roller (602), a glue spreading wheel (603) and a bracket. The glue spreading wheel (603) is rotatably mounted between the bottom plate (1) and the high top plate (10). The glue mixing roller (601) and the glue top roller (602) are both rotatably mounted on the bracket. The glue mixing roller (601) and the glue top roller (602) are in close contact with each other. The bracket is provided with an adjustment component (608) for adjusting the gap between the glue mixing roller (601) and the glue top roller (602). The bracket is rotatably mounted between the bottom plate (1) and the high top plate (10) and can make the glue top roller (602) in close contact with the glue spreading wheel (603).

2. The paper bag inserting paper strip device according to claim 1, characterized in that: The first transmission belt (211) is provided with a first eccentric roller (213), a first over roller (214) and a second over roller (217) between the first traction roller (215) and the first driven roller (212); the first eccentric roller (213) and the first over roller (214) are both vertically installed between the slide plate (31) and the low top plate (11); the second over roller (217) is vertically installed between the bottom plate (1) and the high top plate (10); the straight section of the first transmission belt (211) installed between the first eccentric roller (213) and the first over roller (214), the straight section of the first transmission belt (211) installed between the first over roller (214) and the first traction roller (215), and the straight section of the first transmission belt (211) installed between the first traction roller (215) and the first tensioning roller (216) are parallel to each other; The second belt transmission mechanism (22) is provided with a second eccentric roller (223) and a third over roller (226) between the second traction roller (224) and the second driven roller (222). The second driven roller (222) is an eccentric roller. The second eccentric roller (223) is vertically installed between the slide plate (31) and the low top plate (11). The third over roller (226) is vertically installed between the bottom plate (1) and the high top plate (10). The second transmission belt (221) is installed on the straight section between the second driven roller (222) and the second eccentric roller (223). The straight section of the second transmission belt (221) installed on the second eccentric roller (223) and the second traction roller (224) and the straight section of the second transmission belt (221) installed on the second traction roller (224) and the second tensioning roller (225) are parallel to each other. The straight section of the second transmission belt (221) installed on the second driven roller (222) and the second eccentric roller (223) and the straight section of the first transmission belt (211) installed on the first eccentric roller (213) and the first passing roller (214) overlap to form the paper feeding channel (9).

3. The paper bag inserting paper strip device according to claim 1, characterized in that: The traction cutter mechanism (200) comprises a traction roller (201), a paper pressing roller (202), a movable knife assembly (203), a fixed knife assembly (204), a pressure roller (205), an adjustable pressure roller (206) and a film shifting roller (207) vertically mounted between the bottom plate (1) and the top plate (11). The paper tape passes between the traction roller (201) and the paper pressing roller (202), then passes between the movable knife assembly (203) and the fixed knife assembly (204), passes through the film shifting roller (207), and passes between the pressure roller (205) and the adjustable pressure roller (206) to be input into the paper feeding channel (9).

4. The paper bag inserting paper strip device according to claim 3, characterized in that: The reversing mechanism (100) comprises an oblique roller (101), a fourth roller (102) and a fifth roller (103), wherein the oblique roller (101) is connected between the high top plate (10) and the bottom plate (1), the fourth roller (102) is vertically mounted on the bottom plate (1), and the fifth roller (103) is vertically mounted between the bottom plate (1) and the low top plate (11). The paper tape is sequentially fed through the oblique roller (101), the fourth roller (102) and the fifth roller (103) and inputted between the traction roller (201) and the paper pressing roller (202).

5. The paper bag inserting paper strip device according to claim 1, characterized in that: The bracket comprises an upper support plate (605) and a lower support plate (606); the rubber mixing roller (601) and the upper rubber roller (602) are both rotatably mounted between the upper support plate (605) and the lower support plate (606); one end of the upper support plate (605) and the lower support plate (606) are connected via a first rotating shaft (20).

6. The paper bag inserting paper strip device according to claim 5, characterized in that: The adjustment assembly (608) includes a handwheel (6084) and a screw (6081). The handwheel (6084) is arranged at one end of the screw (6081). The two ends of the rubber mixing roller (601) are slidably mounted on the slide groove (6083) through a rotating seat (6082). Each rotating seat (6082) is correspondingly connected to the other end of the screw (6081).

7. The paper bag inserting paper strip device according to claim 6, characterized in that: Both ends of the glue spreading wheel (603) are connected to a second rotating shaft (6032) via a swing plate (6031). A partition plate (6034) is provided on one side of the glue spreading wheel (603), and the partition plate (6034) is mounted on the swing plate (6031).

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