Special device for automatically adhering tape to roll paper packaging film tail

Abstract

The utility model relates to the technical field of roll paper packaging, in particular to a special device for automatically adhering an adhesive tape to a roll paper packaging film tail, which is characterized in that a connecting plate is fixedly connected with a lifting device, a compression roller component and an adhesive tape self-adhering component are rotatably mounted on the connecting plate, and a cutting knife component is fixedly mounted on the connecting plate; the adhesive tape self-adhesion assembly comprises a guide roller air cylinder, a guide roller seat, an adhesive tape mounting roller and an adhesive tape guide roller set, the guide roller air cylinder is rotationally installed on the connecting plate and electrically connected with the electric control system, the extension end of the guide roller air cylinder is rotationally connected with the guide roller seat, one end of the guide roller seat is rotationally installed on the connecting plate, and the adhesive tape mounting roller is fixedly installed on the connecting plate; the adhesive tape guide roller group is rotationally mounted on the guide roller seat; according to the device, automation of the automatic adhesive tape sticking process of the roll paper packaging film tail is achieved, and the packaging and conveying efficiency is improved; the guide roller set can tension the adhesive tape so as to ensure that necessary friction force is generated between the adhesive tape and the guide roller set, and the adhesive tape does not slip when being pasted.

Description

Technical Field

[0001] The utility model relates to the technical field of roll paper packaging, in particular to a special device for automatically gluing adhesive tape to the tail of a roll paper packaging film. Background Art

[0002] Roll paper is made by paper making machine, cut and rolled by rewinding machine into paper rolls that meet national standards or user-required width and diameter. The finished roll paper needs to be wrapped with film before storage, and the film tail needs to be glued to the roll paper after film packaging. At present, the tape is usually glued manually. The roll paper wrapped by the film wrapping machine is stopped on the conveyor chain. The worker glues the film tail with tape. After gluing, the conveyor chain is restarted to make the roll paper continue to be conveyed forward, so as to glue the tape to the film tail of the next roll paper. In the whole process, the film tail needs to be pressed firmly by manpower, and then the tape is glued to the designated position of the roll paper film packaging. The whole gluing process is not only time-consuming and labor-intensive, but also there is a deviation in the gluing position of each tape, which affects the packaging quality and conveying efficiency of the roll paper. Summary of the invention

[0003] In order to overcome the technical problems of time-consuming and labor-intensive adhesive tape sticking at the tail of a roll paper packaging film and uneven pasting quality, the utility model provides a special device for automatically sticking an adhesive tape at the tail of a roll paper packaging film.

[0004] The utility model provides a special device for automatically gluing adhesive tape to the tail of a roll paper packaging film, which adopts the following technical scheme:

[0005] A special device for automatically gluing adhesive tape to the tail of a roll paper packaging film, comprising a roll paper wrapping machine conveying unit, wrapping machine rollers are arranged on both sides of the roll paper wrapping machine conveying unit, and also comprises a supporting base, a lifting device, a connecting plate, a pressure roller assembly, a tape self-adhesive assembly and a cutting knife assembly, wherein the supporting base is fixedly mounted on the roll paper wrapping machine body, the supporting base is arranged on the side of the roll paper wrapping machine conveying unit, the lifting device is fixedly mounted on the supporting base, the connecting plate is fixedly connected to the lifting device, the pressure roller assembly and the tape self-adhesive assembly are rotatably mounted on the connecting plate The cutting knife assembly is fixedly mounted on the connecting plate, the lifting device, the pressure roller assembly, the tape self-adhesive assembly and the cutting knife assembly are all electrically connected to the electric control system, the tape self-adhesive assembly comprises a guide roller cylinder, a guide roller seat, a tape installation roller and a tape guide roller group, the guide roller cylinder is rotatably mounted on the connecting plate, the guide roller cylinder is electrically connected to the electric control system, the extended end of the guide roller cylinder is rotatably connected to the guide roller seat, one end of the guide roller seat is rotatably mounted on the connecting plate, the tape installation roller is fixedly mounted on the connecting plate, and the tape guide roller group is rotatably mounted on the guide roller seat.

[0006] By adopting the above technical scheme, the pressure roller assembly, the tape self-adhesive assembly, the cutter assembly and the electronic control system cooperate with each other, so as to realize the automation of the automatic tape gluing process at the tail of the roll paper packaging film, improve the packaging and conveying efficiency, and improve the packaging quality; the guide roller cylinder is rotatably installed on the connecting plate, the guide roller cylinder is electrically connected to the electronic control system, the extended end of the guide roller cylinder is rotatably connected to the guide roller seat, one end of the guide roller seat is rotatably installed on the connecting plate, so that the guide roller cylinder can push the guide roller seat to rotate relative to the connecting plate, and the tape guide roller group rotatably installed on the guide roller seat is pressed on the roll paper, so that the tape is pressed on the roll paper packaging film; the guide roller group tensions the tape to ensure that the necessary friction is generated between the tape and the guide roller group and the tape does not slip when sticking.

[0007] Preferably, the tape guide roller group includes a plurality of guide roller wheels, and the guide roller wheels are rotatably mounted on a guide roller seat.

[0008] Preferably, the lifting device includes a sliding rod, a slider, a sliding plate, a main cylinder and a connecting seat, the sliding rod is vertically fixedly installed on the supporting base, the slider is slidingly sleeved on the outside of the sliding rod, the slider is fixedly connected to the sliding plate, the sliding plate is fixedly connected to the connecting plate through the connecting seat, the main cylinder is vertically fixed on the web wrapping machine body, the extended end of the main cylinder is fixedly connected to the connecting seat, and the main cylinder is electrically connected to the electronic control system.

[0009] By adopting the above technical solution, the extended end of the main cylinder is fixedly connected to the connecting seat, and the sliding plate is fixedly connected to the connecting plate through the connecting seat, that is, the main cylinder pushes the connecting seat to rise, thereby driving the sliding plate and the connecting plate to slide and rise along the sliding rod, and the pressure roller assembly, tape self-adhesive assembly and cutting knife assembly installed on the connecting plate are all pushed up to the working position, so that the device can be suitable for rolls of paper with different diameters, thereby improving the application scope of the device.

[0010] Preferably, the pressure roller assembly includes a pressure roller cylinder, a pressure rod, a pressure roller seat and a pressure roller group. The pressure roller cylinder is rotatably mounted on a connecting plate, the extended end of the pressure roller cylinder is rotatably connected to the middle part of the pressure rod, the pressure roller cylinder is electrically connected to an electronic control system, one end of the pressure rod is rotatably mounted on the connecting plate, and the other end is rotatably mounted with a pressure roller seat, the middle part of the pressure roller seat is connected to the pressure rod, and the pressure roller group is rotatably mounted on the end of the pressure roller seat.

[0011] Preferably, the pressing roller group includes two groups of pressing roller wheels, and the pressing roller wheels are rotatably mounted on the ends of the pressing roller seats.

[0012] Preferably, the pressure roller seat is a "V"-shaped structure, and the two ends of the pressure roller seat are rotatably connected to a group of pressure roller wheels respectively.

[0013] By adopting the above technical scheme, the extended end of the pressure roller cylinder is rotatably connected to the middle part of the pressure rod, the end of the pressure rod is rotatably installed with a pressure roller seat, and the end of the pressure roller seat is rotatably installed with a pressure roller wheel, that is, the pressure roller cylinder is extended to push out the pressure rod, and the pressure roller seat installed at the end of the pressure rod is pushed toward the roll paper, so that the pressure roller wheel installed at the end of the pressure roller seat contacts the outer edge surface of the roll paper, so that the tape can be pressed flat on the roll paper, thereby improving the quality and aesthetics of the roll paper packaging.

[0014] Preferably, the cutting knife assembly comprises a cutting cylinder and a cutting knife, wherein the cutting cylinder is fixedly mounted on a connecting plate, the cutting knife is fixedly mounted on an extended end of the cutting cylinder, and the cutting cylinder is electrically connected to an electric control system.

[0015] By adopting the above technical solution, the cutting cylinder is fixedly installed on the connecting plate, and a cutting knife is fixedly installed on the extended end of the cutting cylinder. When the tail tape of the roll paper packaging film is pasted in place, the cutting cylinder extends to drive the cutting knife to contact the tape and cut the tape, thereby realizing the automation of the device work flow and improving the packaging efficiency.

[0016] Preferably, the lifting device also includes an upper limit switch, a lower limit switch, an upper zero position switch and a lower zero position switch, the upper limit switch and the upper zero position switch are fixedly installed at the top end of the sliding rod, and the lower limit switch and the lower zero position switch are fixedly installed at the bottom end of the sliding rod.

[0017] In summary, the utility model has the following beneficial effects:

[0018] 1. The utility model discloses a special device for automatically gluing adhesive tape to the tail of a roll paper packaging film. By cooperating with a pressure roller assembly, an adhesive tape self-adhesive assembly, a cutter assembly and an electric control system, the automatic gluing process of the roll paper packaging film tail is realized, the packaging and conveying efficiency is improved, and the packaging quality is improved; the guide roller cylinder is rotatably installed on a connecting plate, the guide roller cylinder is electrically connected to the electric control system, the extended end of the guide roller cylinder is rotatably connected to a guide roller seat, one end of the guide roller seat is rotatably installed on the connecting plate, so that the guide roller cylinder can push the guide roller seat to rotate relative to the connecting plate, and the tape guide roller group rotatably installed on the guide roller seat is pressed on the roll paper, so that the tape is pressed on the roll paper packaging film; the guide roller group tensions the tape to ensure that necessary friction is generated between the tape and the guide roller group so that the tape does not slip when sticking.

[0019] 2. The utility model is a special device for automatically gluing tape to the tail of a roll paper packaging film. The extended end of the main cylinder is fixedly connected to the connecting seat, and the sliding plate is fixedly connected to the connecting plate through the connecting seat, that is, the main cylinder pushes the connecting seat to rise, thereby driving the sliding plate and the connecting plate to slide and rise along the sliding rod, and the pressure roller assembly, tape self-adhesive assembly and cutting knife assembly installed on the connecting plate are all pushed up to the working position, so that the device can be suitable for rolls of paper with different diameters, thereby improving the application range of the device.

[0020] 3. The utility model is a special device for automatically gluing adhesive tape to the tail of a roll paper packaging film. The extended end of the pressure roller cylinder is rotatably connected to the middle part of the pressure rod, and the end of the pressure rod is rotatably installed with a pressure roller seat, and the end of the pressure roller seat is rotatably installed with a pressure roller wheel. That is, the pressure roller cylinder is extended to push the pressure rod out, and the pressure roller seat installed at the end of the pressure rod is pushed toward the roll paper, so that the pressure roller wheel installed at the end of the pressure roller seat contacts the outer edge surface of the roll paper, so that the tape can be pressed flat on the roll paper, thereby improving the quality and aesthetics of the roll paper packaging.

[0021] 4. The utility model is a special device for automatically sticking tape at the tail of a roll paper packaging film. The cutting cylinder is fixedly installed on a connecting plate, and a cutting knife is fixedly installed at the extended end of the cutting cylinder. When the tape at the tail of the roll paper packaging film is pasted in place, the cutting cylinder extends to drive the cutting knife to contact the tape and cut the tape, thereby realizing the automation of the device work process and improving the packaging efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the working state of the special device for automatically gluing adhesive tape at the tail of roll paper packaging film;

[0023] Figure 2 This is a front view of a special device for automatically gluing adhesive tape to the tail of a roll paper packaging film;

[0024] Figure 3 It is a side view of a special device for automatically sticking adhesive tape to the tail of a roll paper packaging film;

[0025] Figure 4 for Figure 3 Enlarged view at A in the middle;

[0026] Figure 5 for Figure 3 Enlarged view of point B in the middle.

[0027] Explanation of the accompanying drawings: 1. conveying unit of the web wrapping machine; 2. wrapping machine roller; 3. supporting base; 4. lifting device; 41. sliding rod; 42. sliding block; 43. sliding plate; 44. main cylinder; 45. connecting seat; 46. upper limit switch; 47. lower limit switch; 48. upper zero position switch; 49. lower zero position switch; 5. connecting plate; 6. pressure roller assembly; 61. pressure roller cylinder; 62. pressure rod; 63. pressure roller seat; 64. pressure roller group; 641. pressure roller roller; 7. tape self-adhesive assembly; 71. guide roller cylinder; 72. guide roller seat; 73. tape installation roller; 74. tape guide roller group; 741. guide roller roller; 8. cutting knife assembly; 81. cutting cylinder; 82. cutting knife. DETAILED DESCRIPTION

[0028] The following is combined with Figure 1-5 The utility model is described in further detail.

[0029] This embodiment discloses a special device for automatically gluing adhesive tape to the tail of a roll paper packaging film. Figure 1-Figure 5, including a web wrapping machine conveying unit 1, a wrapping machine roller 2, a supporting base 3, a lifting device 4, a connecting plate 5, a pressure roller assembly 6, a tape self-adhesive assembly 7 and a cutting knife assembly 8. The web wrapping machine conveying unit 1 is responsible for conveying the web to the wrapping position and the tape sticking position. The web wrapping machine conveying unit 1 is provided with wrapping machine rollers 2 on both sides. The distance between the wrapping machine rollers 2 on both sides can be adjusted according to the diameter of the web so that the web can be fixed on the web wrapping machine conveying unit 1 in cooperation with each other. Prevent the web from rolling off the web wrapping machine conveying unit 1; the support base 3 is vertically installed on the web wrapping machine body, the support base 3 is arranged on the side of the web wrapping machine conveying unit 1, the lifting device 4 includes a slide bar 41, a slider 42, a slide plate 43, a main cylinder 44 and a connecting seat 45, the slide bar 41 is vertically fixedly installed on the support base 3, the slide bar 41 is provided with two groups, the two groups of slide bars 41 are arranged in parallel, and two slide bars 42 are installed on each group of slide bars 41, and the slide bars 42 adopt linear bearings, and the linear shaft The bearing friction resistance is extremely small, and the operation is very smooth and low-noise. It has the characteristics of light weight, corrosion resistance, interchangeability, low cost, etc. The slider 42 is fixedly connected to the sliding plate 43, so that the slider 42 can drive the sliding plate 43 to slide along the sliding rod 41. A connecting seat 45 is fixedly provided on the sliding plate 43, and the connecting plate 5 is fixedly connected to the sliding plate 43 through the connecting seat 45, that is, when the sliding plate 43 slides along the sliding rod 41, the connecting plate 5 also moves accordingly. The main cylinder 44 is vertically fixed on the body of the web wrapping machine. The main cylinder 44 is electrically connected to the electric control system, and the extended end of the main cylinder 44 is fixedly connected to the connecting seat 45. The electric control system determines the extension amount of the main cylinder 44 and drives the main cylinder 44 to extend according to the input web diameter range and the adhesive tape position of the corresponding diameter. The main cylinder 44 pushes the connecting seat 45 to move upward, and the sliding plate 43 and the connecting plate 5 fixedly connected to the connecting seat 45 move upward, and the slider 42 fixedly connected to the sliding plate 43 slides upward along the slide rod 41, thereby ensuring that the entire upward process is a linear motion;The pressure roller assembly 6 and the tape self-adhesive assembly 7 are rotatably mounted on the connecting plate 5, and the cutter assembly 8 is fixedly mounted on the connecting plate 5. The lifting device 4, the pressure roller assembly 6, the tape self-adhesive assembly 7 and the cutter assembly 8 are all electrically connected to the electric control system. The tape self-adhesive assembly 7 includes a guide roller cylinder 71, a guide roller seat 72, a tape installation roller 73 and a tape guide roller group 74. The guide roller cylinder 71 is rotatably mounted on the connecting plate 5, and the guide roller cylinder 71 is electrically connected to the electric control system. The extended end of the guide roller cylinder 71 is rotatably connected to the middle part of the guide roller seat 72, and one end of the guide roller seat 72 is rotatably mounted on the connecting plate 5. The tape installation roller 73 is fixedly installed on the connecting plate 5, the tape guide roller group 74 is rotatably installed on the guide roller seat 72, the tape sleeve is installed on the tape installation roller 73, and is wound and tensioned on the tape guide roller group 74. When the main cylinder 44 drives the tape self-adhesive component 7 to move up to the specified position, the guide roller cylinder 71 extends and pushes the guide roller seat 72 to rotate relative to the connecting plate 5. At this time, the tape guide roller group 74 is pressed on the outer edge of the web, so that the tape wound on the tape guide roller group 74 is adhered to the specified position of the web, and adhered to the outer edge of the web as the web rotates. ;

[0030] Among them, Figure 1-Figure 5 As shown, the tape guide roller set 74 includes four guide rollers 741, one of which is rotatably mounted on the connecting plate 5, and three of which are rotatably mounted on the guide roller seat 72. A guide roller 741 is provided at the end of the guide roller seat 72; the tape is wound around the four guide rollers 741 and tensioned to ensure that the necessary friction is generated between the tape and the tape guide roller set 74 and that the tape does not slip when being pasted.

[0031] Among them, Figure 1-Figure 5 As shown, the pressure roller assembly 6 includes a pressure roller cylinder 61, a pressure rod 62, a pressure roller seat 63 and a pressure roller group 64. The pressure roller cylinder 61 is rotatably installed on the connecting plate 5. The extended end of the pressure roller cylinder 61 is rotatably connected to the middle part of the pressure rod 62. The pressure roller cylinder 61 is electrically connected to the electric control system. One end of the pressure rod 62 is rotatably installed on the connecting plate 5, and the other end is rotatably installed with the pressure roller seat 63. The pressure roller seat 63 is a "V"-shaped structure. The middle part of the pressure roller seat 63 is connected to the pressure rod 62. The pressure roller group 64 includes two groups of pressure roller wheels 641. The two groups of pressure roller wheels 641 are rotatably installed on the ends of the pressure roller seat 63 of the "V"-shaped structure. The tape is attached to the specified position of the web as the web rotates. At the same time, the pressure roller cylinder 61 extends to push the pressure rod 62 to rotate on the connecting plate 5, so that the pressure roller wheels 641 are pressed on the outer edge surface of the web, thereby flattening the tape.

[0032] Among them, Figure 1-Figure 5As shown, the cutting knife assembly 8 includes a cutting cylinder 81 and a cutting knife 82. The cutting cylinder 81 is fixedly mounted on the connecting plate 5. The cutting knife 82 is fixedly mounted on the extended end of the cutting cylinder 81. The cutting cylinder 81 is electrically connected to the electronic control system. When the adhesive tape is wound into place on the outer edge surface of the roll paper, the cutting cylinder 81 is extended, and the cutting knife 82 contacts the adhesive tape to cut the adhesive tape.

[0033] Among them, Figure 1-Figure 5 As shown, the lifting device 4 also includes an upper limit switch 46, a lower limit switch 47, an upper zero position switch 48 and a lower zero position switch 49. The upper limit switch 46 and the upper zero position switch 48 are fixedly installed at the top of the slide bar 41, and the lower limit switch 47 and the lower zero position switch 49 are fixedly installed at the bottom of the slide bar 41; during the operation of the smooth block 42, the upper limit switch 46 and the lower limit switch 47 will automatically trigger the limit switch when the slide block 42 moves to a certain position, thereby transmitting the signal to the electronic control system, and the electronic control system controls the main cylinder 44 to stop extending further to avoid damage to the equipment; the upper zero position switch 48 and the lower zero position switch 49 ensure the position reference points of the connecting plate 5, the pressure roller assembly 6, the tape self-adhesive assembly 7 and the cutting knife assembly 8 by judging whether the current position of the slide block 42 is the initial position and automatically calibrating it through the electronic control system, thereby ensuring the accuracy and stability of the device.

[0034] The working principle of this embodiment is as follows: before the device is started, the adhesive tape is installed on the adhesive tape installation roller 73, wound around the four guide rollers 741 and tensioned; after the preparation work is completed, the device is started, and the main cylinder 44 automatically returns to zero under the action of the electronic control system and the lower zero position switch 49. The staff manually inputs the web diameter range and the corresponding diameter adhesive tape position according to the production situation. The electronic control system determines the elongation of the main cylinder 44 according to the input value and drives the main cylinder 44 to extend. The main cylinder 44 pushes the connecting seat 45 to move upward, and the sliding plate 43 and the connecting plate 5 fixedly connected to the connecting seat 45 move upward, and the slider 42 fixedly connected to the sliding plate 43 slides upward along the slide rod 41, thereby ensuring that the entire upward process is a linear motion. After moving up to the specified position, the electronic control system sends a signal to control the guide roller cylinder 71 to extend, pushing The guide roller seat 72 rotates relative to the connecting plate 5. At this time, the guide roller wheel 741 at the end of the guide roller seat 72 is pressed on the outer edge surface of the web, so that the tape wrapped around the tape guide roller group 74 is adhered to the specified position of the web and adhered to the outer edge surface of the web as the web rotates. At the same time, the electronic control system controls the pressure roller cylinder 61 to extend and pushes the pressure rod 62 to rotate on the connecting plate 5, so that the pressure roller wheel 641 is pressed on the outer edge surface of the web to press the tape flat. When the tape is wound in place on the outer edge surface of the web, the electronic control system sends a signal to control the guide roller cylinder 71 and the cutting cylinder 81 to retract at the same time. At the same time, the cutting cylinder 81 extends, and the cutting knife 82 contacts the tape to cut the tape; after the pressure roller wheel 641 presses the tape flat, the pressure roller cylinder 61 retracts, and the main cylinder 44 returns to zero, and an automatic process ends.

[0035] The above description is only a preferred embodiment of the present invention and does not constitute any other form of limitation to the present invention. Any technician familiar with the profession may use the technical contents disclosed above to change or modify them into equivalent embodiments with equivalent changes for application in other fields. However, any simple modification or equivalent change made to the above embodiments based on the technical essence of the present invention without departing from the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A special device for automatically gluing adhesive tape to the tail of a roll paper packaging film, comprising a roll paper wrapping machine conveying unit (1), wherein wrapping machine rollers (2) are arranged on both sides of the roll paper wrapping machine conveying unit (1), and characterized in that: The invention comprises a support base (3), a lifting device (4), a connecting plate (5), a pressure roller assembly (6), a tape self-adhesive assembly (7) and a cutting knife assembly (8), wherein the support base (3) is fixedly mounted on a web wrapping machine body, the support base (3) is arranged on the side of a conveying unit (1) of the web wrapping machine, the lifting device (4) is fixedly mounted on the support base (3), the connecting plate (5) is fixedly connected to the lifting device (4), the pressure roller assembly (6) and the tape self-adhesive assembly (7) are rotatably mounted on the connecting plate (5), the cutting knife assembly (8) is fixedly mounted on the connecting plate (5), the lifting device (4) and the pressure roller assembly (6) are fixedly mounted on the connecting plate (5), and the lifting device (4) and the pressure roller assembly (6) are fixedly mounted on the connecting plate (5). , the tape self-adhesive component (7) and the cutter component (8) are all electrically connected to the electric control system, the tape self-adhesive component (7) comprises a guide roller cylinder (71), a guide roller seat (72), a tape installation roller (73) and a tape guide roller group (74), the guide roller cylinder (71) is rotatably mounted on the connecting plate (5), the guide roller cylinder (71) is electrically connected to the electric control system, the extended end of the guide roller cylinder (71) is rotatably connected to the guide roller seat (72), one end of the guide roller seat (72) is rotatably mounted on the connecting plate (5), the tape installation roller (73) is fixedly mounted on the connecting plate (5), and the tape guide roller group (74) is rotatably mounted on the guide roller seat (72); The lifting device (4) comprises a sliding rod (41), a slider (42), a sliding plate (43), a main cylinder (44) and a connecting seat (45); the sliding rod (41) is vertically fixedly mounted on the supporting base (3); the slider (42) is slidably sleeved outside the sliding rod (41); the slider (42) is fixedly connected to the sliding plate (43); the sliding plate (43) is fixedly connected to the connecting plate (5) via the connecting seat (45); the main cylinder (44) is vertically fixed on the main body of the web wrapping machine; the extended end of the main cylinder (44) is fixedly connected to the connecting seat (45); and the main cylinder (44) is electrically connected to the electric control system.

2. The automatic adhesive tape device for the tail of a roll paper packaging film according to claim 1 is characterized in that: The adhesive tape guide roller group (74) comprises a plurality of guide roller wheels (741), and the guide roller wheels (741) are rotatably mounted on the guide roller seat (72).

3. The automatic adhesive tape device for the tail of a roll paper packaging film according to claim 1 is characterized in that: The pressure roller assembly (6) comprises a pressure roller cylinder (61), a pressure rod (62), a pressure roller seat (63) and a pressure roller group (64); the pressure roller cylinder (61) is rotatably mounted on the connecting plate (5); the extended end of the pressure roller cylinder (61) is rotatably connected to the middle part of the pressure rod (62); the pressure roller cylinder (61) is electrically connected to an electric control system; one end of the pressure rod (62) is rotatably mounted on the connecting plate (5); the other end is rotatably mounted with the pressure roller seat (63); the middle part of the pressure roller seat (63) is connected to the pressure rod (62); and the pressure roller group (64) is rotatably mounted on the end of the pressure roller seat (63).

4. The automatic adhesive tape-attaching device for the tail of a roll paper packaging film according to claim 3 is characterized in that: The pressure roller group (64) comprises two groups of pressure roller wheels (641), and the pressure roller wheels (641) are rotatably mounted on the end of the pressure roller seat (63).

5. The automatic adhesive tape device for the tail of a roll paper packaging film according to claim 3 is characterized in that: The pressure roller seat (63) is a "V"-shaped structure, and the two ends of the pressure roller seat (63) are rotatably connected to a group of pressure roller wheels (641).

6. The automatic adhesive tape device for the tail of a roll paper packaging film according to claim 1, characterized in that: The cutting knife assembly (8) comprises a cutting cylinder (81) and a cutting knife (82); the cutting cylinder (81) is fixedly mounted on a connecting plate (5); the cutting knife (82) is fixedly mounted on an extended end of the cutting cylinder (81); and the cutting cylinder (81) is electrically connected to an electric control system.

7. The automatic adhesive tape-attaching device for the tail of a roll paper packaging film according to claim 1, characterized in that: The lifting device (4) further comprises an upper limit switch (46), a lower limit switch (47), an upper zero position switch (48) and a lower zero position switch (49), wherein the upper limit switch (46) and the upper zero position switch (48) are fixedly mounted at the top end of the slide bar (41), and the lower limit switch (47) and the lower zero position switch (49) are fixedly mounted at the bottom end of the slide bar (41).

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