Automatic adhesive tape sticking device for periphery of carton

Abstract

The utility model discloses an automatic adhesive tape sticking device for the periphery of a carton, which comprises a machine body frame, a bottom conveying device is arranged on the machine body frame, the bottom conveying device comprises conveying assemblies arranged in pairs, and each conveying assembly is provided with a shearing assembly for sticking an adhesive tape; a lifting assembly is arranged on the machine body frame and comprises a lifting support, a top conveying device is arranged on the lifting support, the top conveying device comprises conveying assemblies arranged in pairs, and each conveying assembly is provided with a shearing assembly used for applying adhesive tape; the bottom conveying device is provided with brushing assemblies arranged in pairs, the top conveying device is also provided with brushing assemblies arranged in pairs, and the brushing assemblies on the top conveying device and the brushing assemblies on the bottom conveying device are oppositely arranged up and down. The carton box is moved through the conveying device, the periphery of the carton box is coated with adhesive tape through the shearing assembly, the coated adhesive tape is brushed to be flat through the brushing assembly, the automatic adhesive tape coating efficiency is high, and safety and reliability are achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of tape - applying devices, and particularly relates to an automatic tape - sticking device for the four sides of a carton. Background Art

[0002] After the products are placed in the carton, it is often necessary to seal the carton with tape. Generally, the existing tape - applying devices often only seal the top cardboard or the bottom cardboard of the carton, with relatively single functions and poor versatility. In order to enhance the stability of the carton, users often apply tape to the four sides of the carton. Operators often place the carton on a turntable and then manually apply tape to the four sides of the carton, resulting in low automation and low tape - applying efficiency, which is time - consuming and laborious. Therefore, it is necessary to design an automatic tape - sticking device for the four sides of a carton to overcome the above difficulties. Summary of the Invention

[0003] In view of the problems existing in the prior art, the utility model designs an automatic tape - sticking device for the four sides of a carton. The utility model moves the carton through a conveying device, applies tape to the four sides of the carton through a shearing component, and brushes the applied tape flat through a brushing component, with high efficiency and safety and reliability in automatic tape - applying.

[0004] The invention purpose of the utility model is realized through the following technical solutions: an automatic tape - sticking device for the four sides of a carton, including a machine body frame. A bottom conveying device capable of moving relative to the upper end surface of the machine body frame is provided on the upper end surface of the machine body frame. The bottom conveying device includes paired conveying components, and a shearing component for applying tape is provided on the side of each conveying component. A lifting component capable of moving up and down relative to the machine body frame is provided on the machine body frame. The lifting component includes a lifting bracket, and a top conveying device is provided on the top of the lifting bracket. The top conveying device includes paired conveying components, and a shearing component for applying tape is provided on the side of each conveying component. Paired brushing components are provided on the bottom conveying device, and paired brushing components are also provided on the top conveying device. The brushing components on the top conveying device and the brushing components on the bottom conveying device are arranged opposite to each other up and down.

[0005] Preferably, a first lead screw rotatably connected to the body frame is provided, and a first guide rod fixedly connected thereto is also provided; the bottom conveying device is installed between the first lead screw and the first guide rod; the transportation component includes an installation frame, a conveyor belt, and a driving motor; one end of the installation frame is installed on the first lead screw and is threadedly connected thereto, and the other end of the installation frame is sleeved on the first guide rod and is slidably connected thereto; the two transportation components on the bottom conveying device are symmetrically distributed on the left and right sides of the body frame; a conveyor belt rotatably connected to the installation frame is provided inside the installation frame, and the driving motor is fixedly installed on the installation frame. When the driving motor works, it drives the conveyor belt to rotate relative to the installation frame.

[0006] A set of threads with opposite directions is provided on the first lead screw. When the first lead screw is rotated, the two installation frames can move closer to or away from each other, thus facilitating the adjustment of the distance between the installation frames. When the driving motor works, it drives the conveyor belt to rotate, thus facilitating the driving of the cardboard box to move along the body frame.

[0007] Preferably, a number of rolling wheels rotatably connected to the installation frame are provided, and the conveyor belt is sleeved on the outer layer of the rolling wheels; a first pulley synchronously rotating with the rolling wheel is provided on the rolling wheel at the end of the installation frame, a second pulley synchronously rotating with the motor shaft of the driving motor is provided on the motor shaft of the driving motor, and a transmission belt connecting the two is provided between the first pulley and the second pulley; the outer diameter of the first pulley is larger than that of the second pulley.

[0008] When the driving motor works, it drives the second pulley to rotate. The second pulley drives the first pulley to rotate through the transmission belt. When the first pulley rotates, it drives the rolling wheel to rotate, so that the conveyor belt can rotate relative to the installation frame.

[0009] Preferably, a limiting component fixedly connected to one side of the installation frame is provided, and a limiting component fixedly connected to the edge of the body frame is also provided. The two limiting components are arranged side by side and oppositely; the limiting component includes a strip-shaped connecting rod, the strip-shaped connecting rods are arranged in pairs, and a strip-shaped blocking piece is provided between the two strip-shaped connecting rods; an adjusting screw is provided on the strip-shaped connecting rod, the adjusting screw is inserted through the strip-shaped connecting rod, and a locking nut threadedly connected thereto is provided on the adjusting screw. The locking nuts are respectively arranged on both sides of the strip-shaped connecting rod; the end of the adjusting screw is fixedly connected to the strip-shaped blocking piece.

[0010] The cardboard box is placed on the conveyor belt of the installation frame, and then the cardboard box is limited by the limiting components on the left and right sides of the cardboard box to prevent the cardboard box from moving relative to the body frame during transportation; the distance between the strip-shaped blocking piece and the cardboard box can be conveniently adjusted by the adjusting screw, and then the adjusting screw is fixed by the locking nut, so that the strip-shaped blocking piece will remain fixed, thus being able to limit the cardboard box.

[0011] Preferably, a shearing assembly fixedly connected to the side surface of each installation frame, and the shearing head of the shearing assembly is arranged upward; a brushing assembly for brushing the tape is further provided on the side surface of each installation frame, the brushing assembly includes a driving cylinder and a mounting plate, the driving cylinders are arranged in pairs and fixedly installed on the side surface of the installation frame, a mounting plate fixedly connected thereto is provided on the piston shaft of the driving cylinder, and a plurality of uniformly distributed brushes are provided on the mounting plate, and the brushes are arranged upward.

[0012] By providing a shearing assembly on the conveying assembly of the bottom conveying device, the bottom edge of the carton can be taped; when the shearing assembly has taped, the edge of the tape does not completely adhere to the side wall of the carton; thus, the driving cylinder is used to control the lifting of the mounting plate, and the brushes on the mounting plate will contact the tape, so that the tape can be completely adhered to the edge of the carton.

[0013] Preferably, the lifting assembly further includes a pair of vertically arranged mounting seats, a second lead screw rotatably connected thereto is arranged inside the vertically arranged mounting seats, and an adjusting handle fixedly connected thereto is arranged at the end of the second lead screw; a pair of second guide rods are arranged on the left and right sides of the second lead screw; the lifting bracket is sleeved and installed on the second guide rods, and the mounting shaft sleeve of the lifting bracket is installed on the second lead screw and is threadedly connected to the second lead screw.

[0014] When the adjusting handle is rotated, the second lead screw rotates, and when the second lead screw rotates, the lifting bracket can move up and down relative to the vertically arranged mounting seats, so as to conveniently adjust the vertical height of the lifting bracket.

[0015] Preferably, a top conveying device is provided on the lifting bracket, the top conveying device includes a pair of conveying assemblies, the conveying assembly includes an installation frame, the installation frame is installed on the lifting bracket by screws, and a plurality of holes for installing screws are provided on the lifting bracket; the conveying assembly further includes a conveyor belt and a driving motor, a plurality of rolling wheels rotatably connected thereto are provided on the installation frame, and the conveyor belt is sleeved and installed on the outer layer of the rolling wheels; a first pulley synchronously rotating therewith is provided on the rolling wheel at the end of the installation frame, a second pulley synchronously rotating therewith is provided on the motor shaft of the driving motor, and a transmission belt connecting the two is provided between the first pulley and the second pulley; the outer diameter of the first pulley is larger than the outer diameter of the second pulley.

[0016] By providing the top conveying device, it is convenient to further drive the movement of the carton. The working process of the conveying assembly is as follows: when the driving motor works, it drives the second pulley to rotate, the second pulley drives the first pulley to rotate through the transmission belt, and when the first pulley rotates, it drives the rolling wheel to rotate, so that the conveyor belt can rotate relative to the installation frame.

[0017] Preferably, a shearing assembly fixedly connected thereto is provided on the side surface of the mounting frame, and the shearing head of the shearing assembly is arranged downward; a brushing assembly for brushing the tape is further provided on the side surface of each mounting frame. The brushing assembly includes a driving cylinder and a mounting plate. The driving cylinders are arranged in pairs and fixedly installed on the side surface of the mounting frame. An installation plate fixedly connected thereto is provided on the piston shaft of the driving cylinder. A plurality of uniformly distributed brushes are provided on the mounting plate, and the brushes are arranged downward.

[0018] By providing a shearing assembly on the conveying assembly of the top conveying device, the top edge of the carton can be taped; when the shearing assembly has taped, the edge of the tape does not completely adhere to the side wall of the carton; thus, by controlling the lifting of the mounting plate by the driving cylinder, the brushes on the mounting plate will contact the tape, so that the tape is completely pasted to the edge of the carton. Here, the brushing assemblies on the top conveying device and the bottom conveying device cooperate with each other, so that the four sides of the carton can be taped synchronously, and the degree of automation is high.

[0019] Preferably, the shearing assembly is arranged near the feeding end of the machine body frame, and the brushing assembly is arranged near the discharging end of the machine body frame.

[0020] Compared with the prior art, the utility model has the following beneficial effects: 1. The utility model is provided with a bottom conveying device and a top conveying device on the machine body frame, so that the process of conveying the carton is faster, and the speed of taping is faster; 2. By arranging conveying assemblies on the four sides of the carton and shearing assemblies on the conveying assemblies, the four sides of the carton can be taped; by contacting the tape through the brushing assemblies on the conveying assemblies, the tape is completely adhered to the outer wall of the carton, and the taping is more reliable and efficient; 3. By adjusting the vertical height of the top conveying device through the lifting assembly, cartons of different sizes can be adapted, and the versatility is better. Description of the Drawings

[0021] Figure 1 is a perspective view of the utility model;

[0022] Figure 2 is a perspective view of another angle of the utility model;

[0023] Figure 3 is a front view of the utility model;

[0024] Figure 4 is an exploded view of the conveying assembly;

[0025] Figure 5 is an exploded view of the brushing assembly;

[0026] Figure 6 is a perspective view of the lifting assembly;

[0027] Markings in the figure: 1, body frame; 2, bottom conveyor; 3, transport assembly; 31, mounting frame; 32, conveyor belt; 33, drive motor; 34, rolling wheel; 35, first pulley; 36, second pulley; 37, drive belt; 4, shearing assembly; 5, lifting assembly; 51, lifting bracket; 52, vertical mounting base; 53, second lead screw; 54, adjusting handle; 55, second guide rod; 6, top conveyor; 7, brushing assembly; 71, drive cylinder; 72, mounting plate; 73, brush; 8, limiting assembly; 81, strip-shaped connecting rod; 82, strip-shaped stopper; 83, adjusting screw; 84, locking nut; 9, first lead screw; 10, first guide rod. Detailed implementation mode

[0028] The following further describes the present utility model in conjunction with the embodiments shown in the drawings:

[0029] As Figures 1 to 6 shown, this embodiment discloses an automatic adhesive tape device for the four sides of a cardboard box, including a body frame 1. A bottom conveyor 2 capable of moving relative to it is provided on the upper end surface of the body frame 1. The bottom conveyor 2 includes a pair of transport assemblies 3. A shearing assembly 4 for applying adhesive tape is provided on the side of each transport assembly 3; A lifting assembly 5 capable of moving up and down relative to the body frame 1 is provided on the body frame 1. The lifting assembly 5 includes a lifting bracket 51. A top conveyor 6 is provided on the top of the lifting bracket 51. The top conveyor 6 includes a pair of transport assemblies 3. A shearing assembly 4 for applying adhesive tape is provided on the side of each transport assembly 3; A pair of brushing assemblies 7 are provided on the bottom conveyor 2. A pair of brushing assemblies 7 are also provided on the top conveyor 6. The brushing assemblies 7 on the top conveyor 6 and the brushing assemblies 7 on the bottom conveyor 2 are arranged vertically opposite to each other.

[0030] A first lead screw 9 rotatably connected to the body frame 1 is provided, and a first guide rod 10 fixedly connected thereto is also provided; the bottom conveyor device 2 is installed between the first lead screw 9 and the first guide rod 10; the transportation assembly 3 includes an installation frame 31, a conveyor belt 32 and a driving motor 33; one end of the installation frame 31 is installed on the first lead screw 9 and is threadedly connected thereto, and the other end of the installation frame 31 is sleeved and installed on the first guide rod 10 and is slidably connected thereto; the two transportation assemblies 3 on the bottom conveyor device 2 are symmetrically distributed on the left and right sides of the body frame 1; a conveyor belt 32 rotatably connected to the installation frame 31 is provided inside the installation frame 31, the driving motor 33 is fixedly installed on the installation frame 31, and when the driving motor 33 operates, it drives the conveyor belt 32 to rotate relative to the installation frame 31. A plurality of rolling wheels 34 rotatably connected to the installation frame 31 are provided on the installation frame 31, and the conveyor belt 32 is sleeved and installed on the outer layer of the rolling wheels 34; a first pulley 35 synchronously rotating with the rolling wheel 34 at the end of the installation frame 31 is provided, a second pulley 36 synchronously rotating with the motor shaft of the driving motor 33 is provided on the motor shaft of the driving motor 33, and a transmission belt 37 connecting the two is provided between the first pulley 35 and the second pulley 36; the outer diameter of the first pulley 35 is larger than the outer diameter of the second pulley 36. A limiting assembly 8 fixedly connected thereto is provided on the side surface of one of the installation frames 31, and a limiting assembly 8 fixedly connected thereto is also provided on the edge of the body frame 1, and the two limiting assemblies 8 are arranged side by side and oppositely; the limiting assembly 8 includes a strip-shaped connecting rod 81, the strip-shaped connecting rods 81 are arranged in pairs, and a strip-shaped blocking member 82 is provided between the two strip-shaped connecting rods 81; an adjusting screw 83 is provided on the strip-shaped connecting rod 81, the adjusting screw 83 is inserted through the strip-shaped connecting rod 81, and a locking nut 84 threadedly connected thereto is provided on the adjusting screw 83, and the locking nuts 84 are respectively arranged on both sides of the strip-shaped connecting rod 81; the end of the adjusting screw 83 is fixedly connected to the strip-shaped blocking member 82. A shearing assembly 4 fixedly connected thereto is provided on the side surface of each installation frame 31, and the shearing head of the shearing assembly 4 is arranged upward; a tape brushing assembly 7 for brushing the tape is also provided on the side surface of each installation frame 31, the tape brushing assembly 7 includes a driving cylinder 71 and a mounting plate 72, the driving cylinders 71 are arranged in pairs and fixedly installed on the side surface of the installation frame 31, a mounting plate 72 fixedly connected thereto is provided on the piston shaft of the driving cylinder 71, and a plurality of uniformly distributed brush hairs 73 are provided on the mounting plate 72, and the brush hairs 73 are arranged upward.

[0031] The lifting assembly 5 further includes a pair of vertically arranged mounting seats 52. A second lead screw 53 rotatably connected thereto is provided inside the vertically arranged mounting seat 52. An adjusting handle 54 fixedly connected thereto is provided at the end of the second lead screw 53. A pair of second guide rods 55 are provided on the left and right sides of the second lead screw 53. The lifting bracket 51 is sleeved and installed on the second guide rods 55. The mounting bushing of the lifting bracket 51 is installed on the second lead screw 53 and is threadedly connected to the second lead screw 53. A top conveyor 6 is provided on the lifting bracket 51. The top conveyor 6 includes a pair of conveying assemblies 3. The conveying assembly 3 includes a mounting frame 31. The mounting frame 31 is installed on the lifting bracket 51 by screws. A number of hole positions for installing screws are provided on the lifting bracket 51. The conveying assembly 3 further includes a conveyor belt 32 and a driving motor 33. A number of rolling wheels 34 rotatably connected thereto are provided on the mounting frame 31. The conveyor belt 32 is sleeved and installed on the outer layer of the rolling wheels 34. A first pulley 35 synchronously rotating with the rolling wheel 34 provided at the end of the mounting frame 31 is provided. A second pulley 36 synchronously rotating with the motor shaft of the driving motor 33 is provided on the motor shaft of the driving motor 33. A transmission belt 37 connecting the two is provided between the first pulley 35 and the second pulley 36. The outer diameter of the first pulley 35 is larger than the outer diameter of the second pulley 36. A shearing assembly 4 fixedly connected thereto is provided on the side of the mounting frame 31. The shearing head of the shearing assembly 4 is arranged downward. A tape brushing assembly 7 for brushing the tape is further provided on the side of each mounting frame 31. The tape brushing assembly 7 includes a driving cylinder 71 and a mounting plate 72. The driving cylinders 71 are arranged in pairs and fixedly installed on the side of the mounting frame 31. A mounting plate 72 fixedly connected thereto is provided on the piston shaft of the driving cylinder 71. A number of uniformly distributed brush hairs 73 are provided on the mounting plate 72. The brush hairs 73 are arranged downward. The shearing assembly 4 is arranged near the feeding end of the machine body frame 1. The tape brushing assembly 7 is arranged near the discharging end of the machine body frame 1.

[0032] The specific operation process of this embodiment is as follows. Place the cardboard box that needs to be taped onto the machine frame 1. Adjust the vertical height of the top conveyor device 6 in advance through the lifting assembly 5 so that the transport assembly 3 on the top conveyor device 6 contacts the upper end surface of the cardboard box. By adjusting the limiting assembly 8, make the strip-shaped blocking member 82 adjacent to the side wall of the cardboard box. Then the transport assembly 3 starts to work. When the drive motor 33 operates, it drives the second pulley 36 to rotate. The second pulley 36 drives the first pulley 35 to rotate through the transmission belt 37. When the first pulley 35 rotates, it drives the rolling wheel to rotate, so that the conveyor belt 32 can rotate relative to the mounting frame 31. When the transport assembly 3 is working, the cardboard box will move relative to the machine frame 1. The top edge of the cardboard box will be taped by the shearing assembly 4 of the top conveyor device 6, and the bottom edge of the cardboard box will be taped by the shearing assembly 4 on the bottom conveyor device 2. However, at this time, the edge of the tape does not completely fit the side wall of the cardboard box. Then the brushing assembly 7 works. The drive cylinder 71 operates to control the lifting of the mounting plate 72, so that the brush 73 will contact the tape, thereby making the tape completely fit the outer wall of the edge of the cardboard box. In this way, the four sides of the cardboard box will be taped, with high automation and reliability.

[0033] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the art to which the present invention pertains can make various modifications or supplements to the described specific embodiments or use similar methods for substitution, but will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. An automatic adhesive tape device for surrounding a carton, comprising a body frame (1), characterized in that: The upper end surface of the machine frame (1) is provided with a bottom conveying device (2) that can move relative to the machine frame, the bottom conveying device (2) comprising transport components (3) arranged in pairs, and a shearing component (4) for applying adhesive tape is arranged on the side of each transport component (3); the machine frame (1) is provided with a lifting component (5) that can move up and down relative to the machine frame, the lifting component (5) comprising a lifting bracket (51), and a top conveying device (6) on the lifting bracket (51), the top conveying device (6) comprising transport components (3) arranged in pairs, and a shearing component (4) for applying adhesive tape is arranged on the side of each transport component (3); the bottom conveying device (2) is provided with a pair of brushing components (7), and the top conveying device (6) is also provided with a pair of brushing components (7), and the brushing components (7) of the top conveying device (6) and the brushing components (7) on the bottom conveying device (2) are arranged relative to each other in upper and lower directions.

2. The automatic adhesive tape device for surrounding the carton according to claim 1, characterized in that: The machine frame (1) is provided with a first screw rod (9) rotatably connected thereto, and is also provided with a first guide rod (10) fixedly connected thereto; the bottom conveying device (2) is installed between the first screw rod (9) and the first guide rod (10); the transport assembly (3) comprises a mounting frame (31), a conveyor belt (32) and a drive motor (33); one end of the mounting frame (31) is mounted on the first screw rod (9) and is threadedly connected thereto, and the other end of the mounting frame (31) is sleeved and mounted on the first guide rod (10) and is slidably connected thereto; the two transport assemblies (3) on the bottom conveying device (2) are symmetrically distributed on the left and right sides of the machine frame (1); a conveyor belt (32) rotatably connected thereto is provided inside the mounting frame (31), and the drive motor (33) is fixedly installed on the mounting frame (31); when the drive motor (33) is in operation, it drives the conveyor belt (32) to rotate relative to the mounting frame (31).

3. The automatic adhesive tape device for surrounding the carton according to claim 2, characterized in that: The mounting frame (31) is provided with a plurality of rolling wheels (34) rotatably connected thereto, and the conveyor belt (32) is sleeved and mounted on the outer layer of the rolling wheels (34); the rolling wheel (34) arranged at the end of the mounting frame (31) is provided with a first belt pulley (35) which rotates synchronously therewith, the motor shaft of the driving motor (33) is provided with a second belt pulley (36) which rotates synchronously therewith, and a transmission belt (37) which connects the first belt pulley (35) and the second belt pulley (36) is provided between the first belt pulley (35) and the second belt pulley (36); the outer diameter of the first belt pulley (35) is larger than the outer diameter of the second belt pulley (36).

4. The automatic adhesive tape device for surrounding the carton according to claim 2, characterized in that: A side surface of one of the mounting frames (31) is provided with a limiting assembly (8) fixedly connected thereto, and an edge of the machine body frame (1) is also provided with a limiting assembly (8) fixedly connected thereto, and the two limiting assemblies (8) are arranged side by side and opposite to each other; the limiting assembly (8) comprises a strip connecting rod (81), the strip connecting rods (81) are arranged in pairs, and a strip blocking member (82) is arranged between the two strip connecting rods (81); an adjusting screw (83) is provided on the strip connecting rod (81), the adjusting screw (83) is inserted and arranged on the strip connecting rod (81), and a locking nut (84) threadedly connected thereto is provided on the adjusting screw (83), and the locking nuts (84) are respectively arranged on both sides of the strip connecting rod (81); and the end of the adjusting screw (83) is fixedly connected to the strip blocking member (82).

5. The automatic adhesive tape device for surrounding the carton according to claim 2, characterized in that: A shearing assembly (4) is fixedly connected to the side of each mounting frame (31), and the shearing head of the shearing assembly (4) is arranged upwards; a brushing assembly (7) for brushing the adhesive tape is also arranged on the side of each mounting frame (31), and the brushing assembly (7) comprises a driving cylinder (71) and a mounting plate (72), the driving cylinders (71) are arranged in pairs and fixedly mounted on the side of the mounting frame (31), a mounting plate (72) fixedly connected to the driving cylinder (71) is arranged on the piston shaft of the driving cylinder (71), and a plurality of evenly distributed brushes (73) are arranged on the mounting plate (72), and the brushes (73) are arranged upwards.

6. The automatic adhesive tape device for surrounding the carton according to claim 1, characterized in that: The lifting assembly (5) further comprises a pair of vertical mounting seats (52), wherein a second screw rod (53) rotatably connected thereto is disposed in the vertical mounting seats (52), and an adjustment handle (54) fixedly connected thereto is disposed at the end of the second screw rod (53); a pair of second guide rods (55) are disposed on the left and right sides of the second screw rod (53); the lifting bracket (51) is sleeved and mounted on the second guide rods (55), and a mounting sleeve of the lifting bracket (51) is mounted on the second screw rod (53) and is threadedly connected to the second screw rod (53).

7. The automatic adhesive tape device for surrounding the carton according to claim 6, characterized in that: The lifting bracket (51) is provided with a top conveying device (6), the top conveying device (6) comprising a transport assembly (3) arranged in pairs, the transport assembly (3) comprising a mounting frame (31), the mounting frame (31) being mounted on the lifting bracket (51) by screws, the lifting bracket (51) being provided with a plurality of holes for mounting the screws; the transport assembly (3) further comprising a conveyor belt (32) and a drive motor (33); the mounting frame (31) is provided with a plurality of rolling wheels (34) rotatably connected thereto, the conveyor belt (32) being sleeved and mounted on the outer layer of the rolling wheels (34); the rolling wheels (34) arranged at the end of the mounting frame (31) are provided with a first belt pulley (35) rotating synchronously therewith, the motor shaft of the drive motor (33) is provided with a second belt pulley (36) rotating synchronously therewith, and a transmission belt (37) connecting the first belt pulley (35) and the second belt pulley (36) is provided between the first belt pulley (35) and the second belt pulley (36); the outer diameter of the first belt pulley (35) is larger than the outer diameter of the second belt pulley (36).

8. The automatic adhesive tape device for surrounding the carton according to claim 7, characterized in that: A shearing assembly (4) fixedly connected to the mounting frame (31) is provided on the side of the mounting frame (31), and the shearing head of the shearing assembly (4) is arranged downwards; a brushing assembly (7) for brushing the adhesive tape is also provided on the side of each mounting frame (31), and the brushing assembly (7) comprises a driving cylinder (71) and a mounting plate (72), the driving cylinders (71) are arranged in pairs and fixedly mounted on the side of the mounting frame (31), a mounting plate (72) fixedly connected to the driving cylinder (71) is provided on the piston shaft of the driving cylinder (71), and a plurality of evenly distributed brushes (73) are provided on the mounting plate (72), and the brushes (73) are arranged downwards.

9. The automatic adhesive tape device for surrounding the carton according to claim 1, characterized in that: The shearing component (4) is arranged close to the feeding end of the machine body frame (1), and the brushing component (7) is arranged close to the discharging end of the machine body frame (1).

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