Packaging bag strip pasting machine

Abstract

The utility model discloses a packaging bag sticking strip machine which comprises a machine frame, a sticking strip preparation mechanism and a sticking strip bonding mechanism are arranged on the machine frame, the sticking strip preparation mechanism comprises a first discharging roller, a second discharging roller, a folding plate, a hot pressing structure, a cutter structure and a first conveying belt, and the cutter structure comprises a punch and a punch driving piece. The joint strip bonding mechanism comprises a packaging bag discharging bin, a second conveying belt, a glue dripping structure used for dripping glue to a packaging bag and a pressing structure used for pressing a joint strip and the packaging bag, the packaging bag discharging bin is located at the inlet end of the second conveying belt, and the glue dripping structure is arranged above the second conveying belt; the outlet end of the first conveying belt extends to the position above the second conveying belt, the junction of the first conveying belt and the second conveying belt is connected to the inlet end of the press-fit structure, after patch manufacturing is completed, the patch can be conveyed to be press-fit with a packaging bag through the feeding device, the adopted occupied area is relatively small, and therefore the site cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to packing bag processing technical field, especially a packing bag pasting machine. BACKGROUND

[0002] In prior art, some packing bags with sealing pasting strip adopt deformable silk strip and pasting piece, fold the pasting piece to wrap the silk strip, further cut the finished pasting piece by cutter to form a pasting piece, then transport the pasting piece to the packing bag by conveying station, further press the pasting piece on the packing bag by another pressing device, but the two machines for processing increase the floor space and the production cost. SUMMARY

[0003] The utility model discloses a packing bag pasting machine, which can transport the pasting piece to the packing bag for pressing after the pasting piece is finished, and the floor space is relatively small, thereby reducing the site cost.

[0004] The utility model discloses a packing bag pasting machine, which can transport the pasting piece to the packing bag for pressing after the pasting piece is finished, and the floor space is relatively small, thereby reducing the site cost.

[0005] The pasting piece adhering mechanism comprises a packing bag feeding bin for storing the packing bag, a second conveying belt for conveying the packing bag, a glue dropping structure for dropping glue on the packing bag, and a pressing structure for pressing the pasting piece and the packing bag, the packing bag feeding bin is located at the inlet end of the second conveying belt, the glue dropping structure is arranged above the second conveying belt, the outlet end of the first conveying belt extends above the second conveying belt, and the convergence of the first conveying belt and the second conveying belt is connected to the inlet end of the pressing structure.

[0006] The technical scheme is adopted, when in use, the paper sheet is placed on the first feeding roller, the metal wire is placed on the second feeding roller, the pressing roller is driven by the pressing roller driving element to rotate, so that a traction force is provided for the paper sheet and the metal wire, when the paper sheet passes through the folding plate, the paper sheet is folded by the guide surface and covers the metal wire on the opposite sides, further, the heating element works to heat and press the paper sheet, so that the folded paper sheet is bonded, further, the cutting knife structure is used for shearing and forming, then the first conveying belt is used for conveying to the second conveying belt position, meanwhile, the second conveying belt is used for conveying the packaging bag in the packaging bag feeding bin to the first conveying belt outlet end position, when the packaging bag passes through the second conveying belt, the glue dropping structure is used for dropping the glue on the packaging bag, further, the adhesive tape and the packaging bag are conveyed to the pressing structure position, the adhesive tape is further pressed and bonded, two sets of mechanisms are combined to form a set of mechanism, so that the extra steps of carrying after processing are avoided, and the cost of land area is reduced.

[0007] Further, the adhesive tape preparation mechanism is located above the adhesive tape bonding mechanism.

[0008] The technical scheme can save the length and width direction of the land area.

[0009] Further, the first conveying belt comprises a length adjusting section, the length adjusting section comprises a first conveying belt I, a first conveying belt II and a first conveying belt driving element I for driving the first conveying belt I and the first conveying belt II to work, the rack is provided with a tensioning roller and an adjustable adjusting roller, the adjusting roller extrudes the first conveying belt I and the first conveying belt II to partially overlap to form a conveying track, the tensioning roller comprises a plurality of tensioning rollers I for sleeving the first conveying belt I and a plurality of tensioning rollers II for sleeving the first conveying belt II, the tensioning rollers I and the tensioning rollers II are provided with at least one adjustable tensioning roller relative to the rack, when the adjusting roller is adjusted relative to the rack, the conveying track can be relatively lengthened or shortened, and the adjustable tensioning rollers I and the tensioning rollers II can be relatively self-adaptive.

[0010] When the adjusting roller slides close to the outer side, the folding position of the first conveying belt I and the first conveying belt II is relatively increased, so that the length of the conveying track is further increased, but because the overall length of the first conveying belt I and the first conveying belt II cannot be changed, the position of the tensioning rollers I and the tensioning rollers II is adjusted, so that an adaptive adjustment is realized, the first conveying belt I and the first conveying belt II do not need to be replaced as a whole, and the length of the conveying track can be adjusted, so that the adhesive tape of different lengths can be conveyed and used, and the practicability is higher.

[0011] The further setting of the utility model discloses: first conveyor belt still includes the deviation rectifying section, the deviation rectifying section includes first conveyor belt III, the first conveyor belt driving part II of driving first conveyor belt III work, the limiting piece of being located first conveyor belt III opposite both sides, the deviation rectifying roller is rotationally arranged on the upper portion of the frame of first conveyor belt III, and the deviation rectifying roller is spaced apart and is provided with a plurality of along the length direction of first conveyor belt III, and the deviation rectifying roller is relatively first conveyor belt III and is formed deviation rectifying structure by being arranged obliquely.

[0012] Adopt above-mentioned technical scheme, through the cooperation of the obliquely arranged deviation rectifying roller, the deviation rectifying roller is obliquely arranged and rotates, can adjust the sticking strip pressed to the side, thereby making it lean on the limiting piece, thereby realizing the function of deviation rectification, and facilitating the later sticking on the packaging bag, thereby preventing it from being in the inclined state when being pressed.

[0013] The further setting of the utility model discloses: the adjusting frame is set on the frame corresponding to the position of deviation rectifying roller, and the adjusting frame can swing relative to the frame, so that the height of deviation rectifying roller is adjusted.

[0014] Adopt above-mentioned technical scheme, can be suitable for the transmission of sticking strip of different thickness, and the practicality is stronger.

[0015] The further setting of the utility model discloses: two groups of interval setting induction sensors are arranged on the frame (1) corresponding to the outlet end position of first conveyor belt III (2621), a front and back adjusting wheel for adjusting the front and back positions is arranged between the two groups of induction sensors, and a front and back adjusting motor for driving the front and back adjusting wheel to rotate is further included.

[0016] Adopt above-mentioned technical scheme, when the first group of induction sensors detects that the transmission speed of sticking strip is slow, the front and back adjusting motor works, at this time, the front and back adjusting wheel rotates and drives the sticking strip to speed up transportation, the second group of induction sensors can detect the discharge of sticking strip, of course, the front and back adjusting motor works reversely, that is, the transmission speed of sticking strip can be controlled to slow down, thereby facilitating the later alignment and sticking with the packaging bag, and preventing the sticking strip from misalignment with the packaging belt.

[0017] The further setting of the utility model discloses: the adjusting roller is arranged in a plurality of arc shapes, an installation plate is arranged on the frame, the adjusting roller is arranged on the installation plate, and an adjusting screw and a guide rod are arranged on the frame corresponding to the position of the installation plate, the adjusting screw is threadedly connected with the installation plate, and the installation plate is guided to slide on the guide rod.

[0018] Adopting the technical scheme, the first conveying belt I and the first conveying belt II can be deformed by the multiple adjusting rollers cooperating with extrusion, which can guide the reversing during the strip transmission, and the layout is reasonable, further, the adjusting screw is rotated to drive the mounting plate to slide, so that the adjusting rollers on the mounting plate can move integrally, and when not adjusting, the thread locking can prevent the deviation and automatic sliding, and the structure layout is reasonable.

[0019] Further setting of the utility model: first swing block and second swing block are hingedly arranged on the rack, the movable tensioning roller I is arranged on the first swing block, the movable tensioning roller II is arranged on the second swing block, and swing block driving element for driving the first swing block and the second swing block to move is further arranged on the rack.

[0020] Adopting the technical scheme: the first swing block and the second swing block can be swung by the swing block driving element, so that the positions of the corresponding tensioning roller I and tensioning roller II are adjusted, so that self-adaptive adjustment is realized, and the equipment is more inclined to automation during adjustment.

[0021] Further setting of the utility model: a plurality of reversing rollers are further arranged between the hot pressing structure and the cutter structure.

[0022] Adopting the technical scheme, the paper sheet after hot pressing can be guided to the cutter structure, and the paper sheet can also be prevented from falling, and the structure layout is reasonable.

[0023] Further setting of the utility model: the rack is provided with a width adjusting plate movably adjusted corresponding to the packaging bag feeding bin position.

[0024] Adopting the technical scheme, the size of the packaging bag feeding bin can be changed by adjusting the position of the width adjusting plate, so that the packaging bag storage of different widths is applicable. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is the overall structure schematic view of the utility model;

[0026] Figure 2 It is the partial structure schematic view of the strip preparation mechanism of the utility model;

[0027] Figure 3 It is the overall structure schematic view of the utility model;

[0028] Figure 4 It is the deviation rectifying section structure schematic view of the utility model;

[0029] Figure 5 It is the length adjusting section structure schematic view of the utility model;

[0030] Figure 6A length adjusting segment structure schematic view of the utility model is shown in the figure;

[0031] Figure 7 A deviation rectifying segment structure schematic view of the utility model is shown in the figure;

[0032] Figure 8 A folding board structure schematic view of the utility model is shown in the figure;

[0033] Figure 9 A Figure 1 A partial a enlarged view is shown in the figure;

[0034] Figure 10 A Figure 2 A partial b enlarged view is shown in the figure. Specific embodiments

[0035] The specific embodiments of the utility model are described in detail below in combination with the drawings:

[0036] In the description of the utility model, it is understood that the terms "upper", "lower", "bottom", "top", "front", "rear", "inner", "outer", "left", "right" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. The driving members in the text can all be one of an electric cylinder, an air cylinder or a motor, and the specific mounting mode is common knowledge to those skilled in the art, which will not be described in detail herein.

[0037] The utility model discloses a kind of packaging bag striping machines, including rack 1, strip preparation mechanism 2 and strip bonding mechanism 3 are equipped on the rack 1, in the utility model embodiment, the strip preparation mechanism 2 includes first discharging roller 21, second discharging roller 22, folding plate 23, hot-pressing structure 24, cutter structure 25, first conveyor belt 26, the folding plate 23 is equipped with guide surface 231 for guiding paper sheet folding (the end of the guide surface 231 is preferably U-shaped mouth or V-shaped mouth, so that paper sheet is folded when passing, and it is specifically prior art, this paper will not be detailed specifically introduced), the hot-pressing structure 24 includes at least two relatively rotatable pressing rollers 241 and pressing roller driving member 242 for driving the relative rotation of pressing roller 241, and at least one pressing roller 241 is provided with heating element 243 (preferably two pressing rollers 241 are a group, preferably multiple groups are provided side by side, can sufficiently heat-press the folded paper sheet), two adjacent pressing rollers 241 are spaced apart to form pressing channel for paper sheet to pass through and press, cutter structure 25 includes punch 251 that can relatively lift and drive punch 251 lifting punch driving member 252, the punch 251 is located at the back side of pressing roller 241 (the punch 251 is punched and formed and belongs to prior art, this paper will not be detailed specifically introduced);

[0038] The strip bonding mechanism 3 includes packaging bag discharging bin 31 for storing packaging bag, second conveyor belt 32 for packaging bag transportation, glue dropping structure 33 for dropping glue on packaging bag, and pressing structure 34 for pressing strip and packaging bag (the pressing structure 34 is preferably formed by two opposite pressing conveyor belts, of course, it can also be pressed by multiple conveyor rollers, the second conveyor belt 32 is preferably transmitted by belt and chain wheel cooperation, of course, it can also be transmitted by belt, chain wheel and deviation correction roller cooperation, and the specific structure of the second conveyor belt 32 belongs to conventional design, which will not be detailed specifically introduced in this paper), the packaging bag discharging bin 31 is located at the inlet end of the second conveyor belt 32, the glue dropping structure 33 is arranged above the second conveyor belt 32, the outlet end of the first conveyor belt 26 extends above the second conveyor belt 32, and the convergence of the first conveyor belt 26 and the second conveyor belt 32 is connected to the inlet end of the pressing structure 34.

[0039] Adopt the above technical scheme, when using, the paper sheet is placed on the first feeding roller 21, the metal wire is placed on the second feeding roller 22 (the second feeding roller 22 is most preferably provided with two, of course, it can also be 1 or more), then the pressing roller driving element 242 drives the pressing roller 241 to rotate, thereby providing a pulling force for the paper sheet and the metal wire, when the paper sheet passes through the folding plate 23, the paper sheet is folded and covered on the opposite sides of the metal wire through the guide surface 231, further, the heating element 243 works to heat press the paper sheet, thereby the folded paper sheet can be bonded, further, the cutting knife structure 25 is used for shearing forming, then the first conveying belt 26 is used for transporting to the second conveying belt 32 position, at the same time, the second conveying belt 32 transports the packaging bag in the packaging bag feeding bin 31 to the first conveying belt 26 outlet end position, when the packaging bag is transported through the second conveying belt 32, the glue dropping structure 33 (the glue dropping structure belongs to the prior art, which will not be described in detail, and the control valve and the glue storage barrel are most preferably used) is passed, thereby the glue can be dropped on the packaging bag, further, the adhesive tape and the packaging bag are transported to the pressing structure 34 position, the adhesive tape is further pressed and bonded, the two sets of mechanisms are combined to form a set of mechanism, which can avoid the extra steps of handling after processing and reduce the cost of land area.

[0040] The adhesive tape preparation mechanism 2 is located above the adhesive tape bonding mechanism 3, which can save the length and width direction of the occupied area.

[0041] The first conveying belt 26 comprises a length adjusting section 261, the length adjusting section 261 comprises a first conveying belt I 2611, a first conveying belt II 2612 and a first conveying belt driving part I 2613 for driving the first conveying belt I 2611 and the first conveying belt II 2612 to work, the rack 1 is provided with a tensioning roller 4 and an adjustable adjusting roller 5, the adjusting roller 5 extrudes the first conveying belt I 2611 and the first conveying belt II 2612 to partially overlap to form a conveying track 6, the tensioning roller 4 comprises a plurality of tensioning rollers I 41 for sleeving the first conveying belt I 2611 and a plurality of tensioning rollers II 42 for sleeving the first conveying belt II 2612, the tensioning rollers I 41 and the tensioning rollers II 42 are both provided with at least one adjustable tensioning roller relative to the rack 1, when the adjusting roller 5 is adjusted relative to the rack 1, the conveying track 6 can be relatively lengthened or shortened, at the same time, the adjustable tensioning rollers I 41 and the tensioning rollers II 42 can be relatively adaptively changed, when the adjusting roller 5 slides close to the outer side, the folding position of the first conveying belt I 2611 and the first conveying belt II 2612 will relatively increase, thereby further increasing the length of the conveying track 6, however, because the overall length of the first conveying belt I 2611 and the first conveying belt II 2612 cannot be changed, the position of the tensioning rollers I 41 and the tensioning rollers II 42 is adjusted, thereby adaptively adjusting, without the need of overall replacing the first conveying belt I 2611 and the first conveying belt II 2612, and the length of the conveying track 6 can be adjusted to be suitable for conveying strips of different lengths, thereby being more practical.

[0042] The first conveying belt 26 further comprises a deviation rectifying section 262, the deviation rectifying section 262 comprises a first conveying belt III 2621, a first conveying belt driving part II 2622 for driving the first conveying belt III 2621 to work, a limiting part 2623 arranged on opposite sides of the first conveying belt III 2621, a deviation rectifying roller 2624 rotatably arranged above the first conveying belt III 2621 on the rack 1, the deviation rectifying roller 2624 is arranged in a plurality of intervals along the length direction of the first conveying belt III 2621, the deviation rectifying roller 2624 is arranged to be inclined relative to the first conveying belt III 2621 to form a deviation rectifying structure, the deviation rectifying roller 2624 is arranged to be inclined and rotatable, can adjust the pressed strip to the side, thereby making the strip lean on the limiting part 2623, thereby realizing the function of deviation rectification, facilitating the strip to be attached on the packaging bag in the later period, thereby preventing the strip from being in a deviation state when being pressed, the outlet end of the first conveying belt 26 is the end position of the first conveying belt III 2621.

[0043] The rack 1 is provided with an adjusting frame 2625 corresponding to the position of the deviation rectifying roller 2624, the adjusting frame 2625 can swing relative to the rack 1 to adjust the height of the deviation rectifying roller 2624, thereby being suitable for conveying strips of different thicknesses, thereby being more practical.

[0044] The rack (1) is provided with two groups of interval arranged inductive sensors (the inductive sensor is most preferably an infrared sensor, only two sensor mounting frames 20 are shown in the figure, and the inductive sensor is not directly drawn, which can be directly purchased from the market, and will not be described in detail here) corresponding to the outlet end position of the first conveying belt III (2621), a front and rear adjusting wheel 30 for adjusting the front and rear positions is arranged between the two groups of inductive sensors, and a front and rear adjusting motor 40 for driving the front and rear adjusting wheel 30 to rotate is further included. When the first group of inductive sensors detects that the strip transmission speed is slow, the front and rear adjusting motor 40 works, at this time the front and rear adjusting wheel 30 rotates to drive the strip to speed up the transmission, the second group of inductive sensors can detect the strip discharge, of course, the front and rear adjusting motor 40 works in reverse, that is, the strip transmission speed can be controlled to slow down, so as to facilitate the later alignment and fitting with the packaging bag, and prevent the strip from being misaligned with the packaging belt.

[0045] The adjusting roller 5 is arranged in an arc shape, the rack 1 is provided with a mounting plate 71, the adjusting roller 5 is arranged on the mounting plate 71, and the rack 1 is provided with an adjusting screw 72 and a guide rod 73 corresponding to the position of the mounting plate 71, the adjusting screw 72 is threadedly connected with the mounting plate 71, and the mounting plate 71 is guided to slide on the guide rod 73. By cooperating with the plurality of adjusting rollers 5 to extrude the first conveying belt I 2611 and the first conveying belt II 2612 to deform, the strip transmission can be guided to change direction, and the layout is reasonable. Further, the mounting plate 71 can be guided to slide by rotating the adjusting screw 72, so that the adjusting rollers 5 on the mounting plate 71 can move as a whole, and the thread locking can prevent the adjusting rollers 5 from deviating and automatically sliding when not adjusted, and the structure layout is reasonable.

[0046] The rack 1 is hingedly provided with a first swing block 81 and a second swing block 82, the movable tension roller I 41 is arranged on the first swing block 81, and the movable tension roller II 42 is arranged on the second swing block 82. The rack 1 is further provided with a swing block driving part 83 for driving the first swing block 81 and the second swing block 82 to move. The first swing block 81 and the second swing block 82 can be driven to swing by the swing block driving part 83, so as to adjust the positions of the corresponding tension roller I 41 and tension roller II 42, and to perform self-adaptive adjustment, so that the device is more inclined to automation during adjustment.

[0047] The heat pressing structure 24 and the cutter structure 25 are further provided with a plurality of reversing rollers 9, which can guide the paper sheet after heat pressing to the cutter structure 25, and can also prevent it from falling, and the structure layout is reasonable.

[0048] The width adjusting plate 10 is preferably manually adjusted by a screw, but can also be electrically adjusted by a motor, an electric cylinder or a pneumatic cylinder. The size of the packaging bag storage bin 31 can be changed by adjusting the position of the width adjusting plate 10, so as to be suitable for packaging bags of different widths.

Claims

1. A bag labeler comprising a frame (1), the frame (1) being provided with a label preparation mechanism (2) and a label bonding mechanism (3), characterized in that: The strip preparation mechanism (2) comprises a first feeding roller (21), a second feeding roller (22), a folding plate (23), a hot pressing structure (24), a cutter structure (25), and a first conveying belt (26). The folding plate (23) is provided with a guide surface (231) for guiding the folding of the paper sheet. The hot pressing structure (24) comprises at least two relatively rotatable pressing rollers (241) and a pressing roller driving member (242) for driving the relative rotation of the pressing rollers (241). At least one of the pressing rollers (241) is provided with a heating member (243). The adjacent two pressing rollers (241) are arranged at intervals to form a pressing channel for the paper sheet to pass through and be pressed. The cutter structure (25) comprises a punch (251) capable of relatively lifting and stamping and a punch driving member (252) for driving the lifting of the punch (251). The punch (251) is arranged at the rear side of the pressing roller (241). The strip bonding mechanism (3) comprises a packaging bag feeding bin (31) for storing packaging bags, a second conveying belt (32) for transporting the packaging bags, a glue dropping structure (33) for dropping glue on the packaging bags, and a pressing structure (34) for pressing the strip and the packaging bag. The packaging bag feeding bin (31) is located at the inlet end of the second conveying belt (32). The glue dropping structure (33) is arranged above the second conveying belt (32). The outlet end of the first conveying belt (26) extends above the second conveying belt (32), and the convergence of the first conveying belt (26) and the second conveying belt (32) is connected to the inlet end of the pressing structure (34).

2. A bag taping machine according to claim 1, characterized in that: The strip preparation mechanism (2) is located above the strip bonding mechanism (3).

3. A bag taping machine according to claim 1 or 2, characterised in that: The first conveying belt (26) comprises a length adjusting section (261). The length adjusting section (261) comprises a first conveying belt I (2611), a first conveying belt II (2612), and a first conveying belt driving member I (2613) for driving the operation of the first conveying belt I (2611) and the first conveying belt II (2612). The rack (1) is provided with a tensioning roller (4) and an adjustable adjusting roller (5). The adjusting roller (5) extrudes the partially overlapped first conveying belt I (2611) and the first conveying belt II (2612) to form a conveying track (6). The tensioning roller (4) comprises a plurality of tensioning roller I (41) for sleeving the first conveying belt I (2611) and a plurality of tensioning roller II (42) for sleeving the first conveying belt II (2612). The tensioning roller I (41) and the tensioning roller II (42) are both provided with at least one adjustable roller relative to the rack (1). When the adjusting roller (5) is adjusted relative to the rack (1), the conveying track (6) can be relatively lengthened or shortened. Meanwhile, the adjustable tensioning roller I (41) and the tensioning roller II (42) can be relatively self-adaptively changed.

4. A bag taping machine according to claim 3, wherein: The first conveying belt (26) further comprises a deviation rectifying section (262), the deviation rectifying section comprises a first conveying belt III (2621), a first conveying belt driving element II (2622) for driving the first conveying belt III (2621) to work, limiting elements (2623) arranged on opposite sides of the first conveying belt III (2621), and deviation rectifying rollers (2624) rotatably arranged above the first conveying belt III (2621) on the rack (1), wherein the deviation rectifying rollers (2624) are arranged at intervals along the length direction of the first conveying belt III (2621), and the deviation rectifying rollers (2624) are arranged obliquely relative to the first conveying belt III (2621) to form a deviation rectifying structure.

5. A bag taping machine according to claim 4, wherein: The rack (1) is provided with an adjusting frame (2625) corresponding to the position of the deviation rectifying rollers (2624), the adjusting frame (2625) can swing relative to the rack (1) to adjust the height of the deviation rectifying rollers (2624).

6. A bag applicator according to claim 4 or 5, characterised in that: The rack (1) is provided with two groups of interval arranged sensing sensors corresponding to the outlet end position of the first conveying belt III (2621), a front and back adjusting wheel (30) for adjusting the front and back positions is arranged between the two groups of sensing sensors, and a front and back adjusting motor (40) for driving the front and back adjusting wheel (30) to rotate is further included.

7. A bag taping machine according to claim 3, wherein: The adjusting rollers (5) are arranged at intervals along an arc, the rack (1) is provided with a mounting plate (71), the adjusting rollers (5) are arranged on the mounting plate (71), and the rack (1) is provided with an adjusting screw (72) and a guide rod (73) corresponding to the position of the mounting plate (71), the adjusting screw (72) is in threaded cooperation with the mounting plate (71), and the mounting plate (71) is guided to slide on the guide rod (73).

8. A bag taping machine according to claim 7, wherein: The rack (1) is hingedly provided with a first swing block (81) and a second swing block (82), wherein the movable tensioning roller I (41) is arranged on the first swing block (81), and the movable tensioning roller II (42) is arranged on the second swing block (82), and the rack (1) is further provided with a swing block driving element (83) for driving the first swing block (81) and the second swing block (82) to move.

9. A bag taping machine according to claim 1 or 2, characterized in that: A plurality of reversing rollers (9) are further arranged between the hot pressing structure (24) and the cutter structure (25).

10. A bag taping machine according to claim 1 or 2, characterized in that: The rack (1) is movably provided with a width adjusting plate (10) corresponding to the position of the packaging bag feeding bin (31).

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