CN112644079A

CN112644079A - Self-sealing carton and carton adhesive tape machine and application thereof

Info

Publication number: CN112644079A
Application number: CN202110223763.2A
Authority: CN
Inventors: 鲁剑锋
Original assignee: Shanghai Dili Printing Co ltd
Current assignee: Shanghai Dili Printing Co ltd
Priority date: 2021-02-01
Filing date: 2021-03-01
Publication date: 2021-04-13

Abstract

The invention relates to a self-sealing carton and carton adhesive tape machine and application thereof, which are suitable for the field of packaging. In order to solve the following problems: some packaging boxes and cartons need to be pre-adhered with double-sided adhesive tapes so as to be used for adhering and forming the box bodies at a later stage. In the traditional scheme, the adhesive tape is directly purchased for production, and some manufacturers can choose to develop an adhesive tape factory for production. This results in higher production costs. The invention combines the processes of gluing and sticking the isolation belt with the process of producing the self-sealing box, thereby reducing the cost.

Description

Self-sealing carton and carton adhesive tape machine and application thereof

Technical Field

The invention relates to the field of packaging, in particular to a self-sealing carton and carton adhesive tape machine and application thereof.

Background

Some packaging boxes and cartons need to be pre-adhered with double-sided adhesive tapes so as to be used for adhering and forming the box bodies at a later stage. In the traditional scheme, the adhesive tape is directly purchased for production, and some manufacturers can choose to develop an adhesive tape factory for production. This results in higher production costs. In addition, the width of the glue traces can be adjusted as required during the gluing process.

Disclosure of Invention

The invention aims to provide a self-sealing carton and carton adhesive tape machine and application thereof, which are used for combining the production flow of non-setting adhesive in the production process of a carton, saving the cost and simplifying the whole flow.

The specific technical scheme of the invention is as follows:

the self-sealing carton and carton adhesive tape machine comprises a rack, a conveying device, a driving device and an adhesive supply device, wherein the conveying device, the adhesive supply device and a tape covering device are arranged on the rack, the conveying device is driven by the driving device, the self-sealing carton and carton adhesive tape machine is also provided with the tape covering device, the tape covering device is arranged on the rack, the tape covering device is arranged at the downstream of the adhesive supply device, and a connecting line of a tape covering port of the tape covering device and an adhesive outlet port of the adhesive supply device is arranged above the conveying device and is the same as the conveying direction of the conveying device.

Install the inductor that is used for responding to the thing of waiting to glue in the upper reaches frame that supplies gluey ware, the inductor is connected with the controller, the controller with supply gluey ware with the frenulum ware is connected, there is man-machine interaction device in the frame, man-machine interaction device with the controller is connected. The sensor may also be mounted mid-stream or downstream of the rack.

Note: the sensor can be a light sensor, when the sensor senses that the forefront end of the carton board to be adhered comes, a signal is sent to the controller, and the controller presets two time differences t1 and t2 and a duration t3 in advance according to the factors of the running speed of the conveying device, the glue falling speed of the glue supplier, the descending speed of the second transmission device and the like. From the inductor sense and to wait to paste carton board the foremost end through t1 when coming, the valve that controller control supplied gluey ware is opened, begins to supply to glue, lasts t3, waits to paste the end of carton board this moment and supplies to glue the mouth, and the valve is closed, stops to supply to glue, is favorable to resources are saved. The sensor senses that the front end of the carton board to be pasted passes through t2, the controller controls the cylinder in the second transmission device to move, the tail end of the carton board to be pasted passes through the lower end of the cutter, the falling cutter cuts off the belt, and the cutter resets rapidly. The man-machine interaction device can enable a user to observe various parameters in real time, and the user can also control various parameters through the man-machine interaction device, such as adjusting the opening and closing degree of a valve of the glue supplier, so as to adapt to different requirements, such as adjusting the air pressure of the air cylinder and changing the pressure of the cutter. The sensor is preferably mounted upstream of the housing, but midstream and downstream are optional and can be reasonably inferred by those skilled in the art from the upstream mounting. The carton boards to be adhered periodically advance one by one at equal time intervals, so that the sensor provides a periodic starting signal for controlling the periodic movement of components such as a valve, a cutter and the like of the glue supplier, only two periods are required to be equal, and the sensor is arranged at different positions to influence the initial phase of the period.

The glue supplier comprises a glue storage box, a valve and a glue outlet, wherein the glue storage box is provided with a glue inlet; the valve is connected with the controller; the glue supplier is provided with one or more glue suppliers.

The connecting line direction of the glue supply ports of the glue supplies is perpendicular to the conveying direction of the conveying device.

Note: the glue feeders can glue the carton boards to be glued at multiple positions together; the connecting line direction of the glue supply ports of the plurality of glue supply devices is perpendicular to the conveying direction of the conveying device, so that the controller can control the plurality of glue supply devices to simultaneously discharge glue, and the length of the conveying device can be shortened.

The belt covering device comprises a belt supply part, a press roller and a cutter; a belt coil is sleeved on the belt supply part, and one end of the belt coil is led out to be positioned below the compression roller; the cutter is positioned at the downstream of the compression roller and is connected with a second transmission device, the second transmission device is mechanically connected with the rack, and the second transmission device is connected with the controller; the compression roller is horizontally arranged, and the axis of the compression roller is vertical to the advancing direction of the conveying device; two ends or one end of the compression roller are movably connected with a connecting rod, the compression roller can rotate around the shaft of the compression roller, the other end of the connecting rod is movably connected with the rack, the connecting rod can rotate around the connecting point of the connecting rod and the rack, and the direction of the connecting rod and the advancing direction of the transmission device form an obtuse angle.

Note: one end of the tape roll is led out and positioned below the compression roller, the cutter is positioned at the downstream of the compression roller, and the purpose of the arrangement is to ensure that the lowest end of the tape led out by the tape roll can be always positioned between the compression roller and the upper surface of the conveying device, so that the continuous pasting of the tape can be realized. The other end of the connecting rod is movably connected with the rack, the connecting rod can rotate around a connecting point of the connecting rod and the rack, the direction of the connecting rod and the advancing direction of the transmission device form an obtuse angle, and the purpose of the arrangement is to adapt to cartons with various thicknesses.

The second transmission device comprises an air cylinder and a movable block, the cutting knife is connected with the air cylinder through the movable block, and the other end of the air cylinder is connected with the rack; the belt covering device also comprises a limiting stopper; the limiting device is arranged between the belt supplying part and the pressing roller and is composed of more than two adjacent horizontal cross rods, the distance between every two adjacent horizontal cross rods is less than 5 mm, and the horizontal cross rods are fixed on the rack through vertical columns.

Horizontal pole is last to have horizontal stopper, horizontal stopper has more than 2, horizontal stopper cover is established horizontal pole is last, horizontal stopper can along horizontal pole removes.

Note: if only one horizontal cross bar is arranged, the belt can only be limited not to float to one direction (the upstream direction of the conveyor belt); when the number of the horizontal cross bars is two, the movement of the belt on the conveyor belt in the front-back two directions is limited, and the movement in the direction vertical to the conveyor belt can be limited by the length of the horizontal cross bars or a transverse limiter is additionally arranged on the horizontal cross bars; when the number of the horizontal cross rods is 3 or more, the belt can pass through the lower part of the compression roller after being wound up and down among the horizontal cross rods, so that the friction force is increased, and the belt is more difficult to deviate. The second conveyor may also have other solutions, such as a movement device that rotates periodically or swings right and left, as long as it is possible to move periodically and to cut the tape.

The surface of the press roller does not contact with the upper surface of the conveyer when the press roller is naturally placed.

Note: if the surface of the press roller is in contact with the upper surface of the conveying device when the press roller is naturally placed, the press roller can rotate around a shaft of the press roller under the action of friction force between the press roller and the conveying device, and then the belt below the press roller can be driven to continuously move along with the press roller.

The upper surface of the frame is provided with a bulge, and when the compression roller is naturally placed, the connecting rod presses on the bulge; the lowest end of the press roller when naturally placed is higher than the upper surface of the conveying device by a distance of less than 20 mm.

A second pressing roller is arranged at the downstream of the cutter, and the connection mode between the second pressing roller and the rack is the same as that between the pressing roller and the rack; the second press roller is naturally placed with a surface in contact with the upper surface of the conveyor.

Note: the main function of the press roll is to bond the tape to the glue, but the bond is not necessarily tight enough, so that a second press roll is provided to ensure tightness.

The glue storage box is a cuboid, the width of the cuboid is not more than 5 cm, the glue supply devices are tightly attached to each other, and the corresponding widths of the glue supply devices are arranged into a straight line.

Note: the glue feeders do not glue the carton board to be glued together at a plurality of positions, but rather increase the width of a single glue line (combined into a single glue line after being rolled by the subsequent press roll and the second press roll).

Only one supplies gluey ware, it has a plurality of play jiao kou to supply gluey ware below UNICOM, every go out jiao kou by a valve control, the valve with the controller is connected. Preferably, the glue outlets are in a straight line.

Note: also in order to vary the width of the glue supply, it can also be implemented in the case of only one glue supply.

The inner diameter of the glue outlet is narrow at the top and wide at the bottom, and the glue outlet can move up and down. The vertical movement is realized through a third transmission device which is a second cylinder and a second movable block; the glue feeder is connected with the second cylinder through the second movable block, and the other end of the second cylinder is connected with the rack.

Note: similarly, in order to change the width of the glue supplier, when the inner diameter of the glue outlet is narrow at the top and wide at the bottom, the position of the glue outlet is moved up and down, and the glue supplier can realize the purpose. The fact that the glue outlet can move up and down does not mean that only the glue outlet is separated from other parts of the glue feeder and moves independently, and the glue outlet and the valve can move up and down together or the glue feeder can move up and down integrally.

The method for producing the self-service-bonding carton by using the self-sealing carton adhesive tape machine is characterized in that the self-sealing carton adhesive tape machine comprises a rack, a conveying device, a driving device and an adhesive supplier, wherein the conveying device, the adhesive supplier and a tape covering device are arranged on the rack, the conveying device is driven by the driving device, the self-sealing carton adhesive tape machine is also provided with a tape covering device, the tape covering device is arranged on the rack, the tape covering device is arranged at the downstream of the adhesive supplier, a connecting line of a tape covering port of the tape covering device and an adhesive outlet port of the adhesive supplier is arranged above the conveying device and has the same conveying direction as the conveying device, and the method comprises the following steps:

(1) and placing the carton boards to be bonded on the conveying device.

(2) And gluing the carton board to be bonded by the glue supplier.

(3) And (3) enabling the carton board to be bonded to pass through the tape covering device for covering the tape, wherein the tape covers the adhesive tape track on the carton board to be bonded.

A method for producing a self-adhesive carton by using a self-sealing carton and carton adhesive tape machine, which is characterized in that,

Install the inductor that is used for responding to the thing of waiting to glue in the upper reaches frame that supplies gluey ware, the inductor is connected with the controller, the controller with supply gluey ware with the frenulum ware is connected, there is man-machine interaction device in the frame, man-machine interaction device with the controller is connected.

The belt covering device comprises a belt supply part, a press roller and a cutter; a belt coil is sleeved on the belt supply part, and one end of the belt coil is led out to be positioned below the compression roller; the cutter is positioned at the downstream of the compression roller and is connected with a second transmission device, the second transmission device is mechanically connected with the rack, and the second transmission device is connected with the controller; the compression roller is horizontally arranged, and the axis of the compression roller is vertical to the advancing direction of the conveying device; two ends or one end of the compression roller are movably connected with a connecting rod, the compression roller rotates around the shaft of the compression roller, the other end of the connecting rod is movably connected with the rack, the connecting rod rotates around the connecting point of the connecting rod and the rack, and the direction of the connecting rod and the advancing direction of the transmission device form an obtuse angle; one or more of the tape coaters.

The belt covering device also comprises a limiting stopper; the limiting device is arranged between the belt supplying part and the pressing roller and is composed of more than two adjacent horizontal cross rods, the distance between every two adjacent horizontal cross rods is less than 5 mm, and the horizontal cross rods are fixed on the rack through vertical columns.

The method comprises the following steps:

(1) and controlling the man-machine interaction device to adjust parameters.

(2) And drawing the belt to pass through the limiter and the transverse limiter, and placing the belt below the compression roller.

(3) And placing the carton boards to be bonded on the conveying device.

(4) And enabling the carton board to be bonded to pass through the inductor.

(5) The carton board to be bonded is glued by the glue supplier, and the controller controls the valve to discharge glue only when the carton board to be bonded is below the glue outlet.

(6) The carton board to be bonded is subjected to tape covering by the tape covering device, and the controller controls the air cylinder to fall and reset when the tail end of the carton board to be bonded passes through.

The tape may be a paper or plastic tape or other material.

Has the advantages that: the production cost in the processing process of the carton is reduced, a matched adhesive sticker workshop does not need to be additionally arranged, and the problem of high cost caused by directly purchasing finished adhesive stickers is solved; the width of a single glue mark can be freely changed; the design of the stopper can prevent the belt from being separated from a preset position due to air disturbance and the like; the gap between the compression roller and the surface of the conveying device enables the belt to advance only when the carton board to be bonded passes through, so that the using amount of the belt is saved; the second press roller has a sufficiently tight and uniform bond between the packaging adhesive and the tape.

Drawings

Fig. 1 is a plan view of a self-sealing carton and carton tape machine.

Fig. 2 is a perspective view of a self-sealing carton and carton adhesive tape machine.

Fig. 3-7 are schematic diagrams of five glue feeders.

Fig. 8 is a schematic diagram of a circuit system in the self-sealing carton and carton adhesive tape machine.

The device comprises a frame 1, a sensor 2, a conveying device 3, a glue feeder 4, a glue storage box 411, a valve 412, a glue outlet 413, an air cylinder 42, a movable block 43, a belt covering device 5, a belt feeding part 51, a limiting device 52, a transverse limiting device 53, a pressing roller 54, a connecting rod 55, a protrusion 56, a cutter 57, a second air cylinder 58, a second movable block 59, a second pressing roller 6 and a driving device 7.

Detailed Description

Referring to fig. 1 and 2, a conveyor 3 is provided on a frame 1, and an inductor 2, a glue supplier 4, a tape applicator 5, and a second press roller 6 are sequentially installed along the direction in which the conveyor 3 advances (black arrows in fig. 1). The glue supplier 4 comprises a glue storage tank 411, a valve 412, a glue outlet 413, an air cylinder 42 and a movable block 43. The frame 1 is provided with a driving device 7 for supplying power.

In this case, since the glue supplier 4 having the glue outlet 413 narrow at the top and wide at the bottom is used, the second cylinder 58 and the second movable block 59 are required to support the up-and-down movement. If other types of glue feeders 4 in fig. 3-7 are adopted, the design of the air cylinder and the movable block is not needed, and the glue feeder 4 can be ensured to be stably immovable. The glue feeder 4 is provided with a glue inlet (not shown). The other types of glue supply devices 4 shown in fig. 3-7 also include a glue storage tank 411, a valve 412, and a glue outlet 413.

The tape applicator 5 includes a tape supply portion 51, a stopper 52, a lateral stopper 53, a pressing roller 54, a connecting rod 55, a projection 56, a cutter 57, a second air cylinder 58, and a second movable block 59. The tape is a separation tape for sticking on the glue, and may be paper or plastic film. The tape roll is mounted on the tape supply portion 51, one end of the tape is drawn out through a space formed by the stoppers 52 and the lateral stopper 53, and the tape is passed through the lower portion of the pressing roller 54 and the lower portion of the cutter 57. In this example, the stopper is two cross bars, and the distance between the two cross bars is 3 mm; the band width is 1 cm, the two transverse limiting devices 53 are sleeved on the two cross rods and can move along the cross rods, and the distance between the two transverse limiting devices 53 is adjusted to be 1.2 cm. One end of the pressing roller 54 is connected with a connecting rod 55, the other end of the connecting rod 55 is connected with a cross rod on the frame 1, and the connecting rod 55 can rotate around the contact point of the connecting rod and the cross rod. The pressure roller 54 can rotate about its own axis. The frame 1 is further provided with a protrusion 56, and the protrusion 56 may contact the connecting rod 55, so that the distance between the platen roller 54 and the upper surface of the conveying device 3 is 3 mm, and the belt may not move forward by the frictional force of the platen roller 54 when no carton board passes through. The cutter 57 is driven by a second drive means comprising two symmetrically arranged air cylinders 58 and a movable block 59 above the air cylinders 58. The second pressure roller 6 is downstream of the cutter 57, and the second pressure roller 6 is in contact with the upper surface of the conveying device 3, so that the second pressure roller 6 can make the adhesion between the belt and the glue tighter because there is no non-adhered belt.

The glue supply 4 shown in fig. 3 is the glue supply 4 shown in fig. 1 and 2.

The glue supply device 4 in fig. 4 and 5 has only one glue storage tank 411, but the number of the glue outlets 413 and the valves 412 is increased below to control the number of the glue outlets 413 for glue outlet, so as to adjust the glue track width. Each valve is connected to and controlled by a controller. In this example, the number of the glue outlets 413 of the glue supplier 4 in fig. 4 and 5 is 5, the distance between two adjacent glue outlets 413 is 3 mm, and the 5 glue outlets 413 are arranged in a straight line perpendicular to the advancing direction of the conveyer 3.

Fig. 6 shows a simpler design with only one valve 412 and one glue outlet 413.

Fig. 7 shows that the plurality of glue feeders 4 are attached to each other, the glue storage box 411 is a rectangular parallelepiped, the width of the rectangular parallelepiped is not more than 5 cm, in this case 1 cm, the plurality of glue feeders 4 are attached to each other, and the corresponding widths of the plurality of glue feeders 4 are arranged in a straight line.

The invention does not limit the kind of glue and the glue discharging method, and no matter what kind of glue is, and no matter whether the glue is sprayed or dropped, the invention shall fall into the protection scope of the invention.

Fig. 8 shows that the controller and the man-machine interaction device are not shown in the previous figures, and the two devices can also be arranged on the frame 1.

When the paper box bonding machine is used, a paper box to be bonded is placed at the most upstream of the paper box bonding machine, the advancing speed of the conveying device 3 is set to be 1 m/s through a power supply driven by a man-machine interaction device, the valve 412 is opened after 0.5 s when the sensor 2 senses the most front end of the paper box to be bonded, and the air cylinder 58 sinks and resets after 2 s; the second cylinder 42 is arranged to move up and down to a suitable height. The tape roll is mounted on the tape supply portion 51, one end of the tape is drawn out through a space formed by the stoppers 52 and the lateral stopper 53, and the tape is passed through the lower portion of the pressing roller 54 and the lower portion of the cutter 57. And then the power supply of the driving device 7 (a motor) is turned on through the man-machine interaction device. The carton to be glued is glued in turn at the glue feeder 4, the tape is applied at the tape applicator 5, the cutter falls immediately to cut the tape when the end of the carton to be glued passes the cutter 57, the end of the tape is still downstream of the press roller 54 and the tape is not driven forward by the press roller 54. The carton to be bonded is further forward and is rolled by the second pressing roller 6, and the tape is more uniformly and tightly attached to the adhesive.

The above disclosure is only for the preferred embodiment of the present invention, and is not intended to limit itself, and those skilled in the art should make variations and modifications without departing from the spirit of the present invention.

Claims

1. The self-sealing carton and carton adhesive tape machine is characterized in that the self-sealing carton and carton adhesive tape machine is also provided with a tape covering device, the tape covering device is arranged on the rack, the tape covering device is arranged at the downstream of the adhesive supplying device, and a connecting line of a tape covering port of the tape covering device and an adhesive outlet of the adhesive supplying device is arranged above the conveying device and is the same as the conveying direction of the conveying device.

2. The self-sealing carton and carton box adhesive tape machine of claim 1, wherein a sensor for sensing an object to be glued is mounted on an upstream or midstream or downstream frame of the adhesive supplier, the sensor is connected with a controller, the controller is connected with the adhesive supplier and the tape covering device, a human-computer interaction device is mounted on the frame, and the human-computer interaction device is connected with the controller.

3. The self-sealing carton and carton adhesive tape machine of claim 2, wherein the adhesive supplier comprises an adhesive storage box, a valve and an adhesive outlet, and the adhesive storage box is provided with an adhesive inlet; the valve is connected with the controller; the glue supplier is provided with one or more glue suppliers.

4. The self-sealing carton and carton box adhesive tape machine of claim 2, wherein the tape applicator comprises a tape supply part, a pressing roller and a cutter; a belt coil is sleeved on the belt supply part, and one end of the belt coil is led out to be positioned below the compression roller; the cutter is positioned at the downstream of the compression roller and is connected with a second transmission device, the second transmission device is mechanically connected with the rack, and the second transmission device is connected with the controller; the compression roller is horizontally arranged, and the axis of the compression roller is vertical to the advancing direction of the conveying device; two ends or one end of the compression roller are movably connected with a connecting rod, the compression roller rotates around the shaft of the compression roller, the other end of the connecting rod is movably connected with the rack, the connecting rod rotates around the connecting point of the connecting rod and the rack, and the direction of the connecting rod and the advancing direction of the transmission device form an obtuse angle; one or more of the tape coaters; the second transmission device comprises an air cylinder and a movable block, the cutting knife is connected with the air cylinder through the movable block, and the other end of the air cylinder is connected with the rack; the surface of the compression roller is not contacted with the upper surface of the conveying device when the compression roller is naturally placed; a second pressing roller is arranged at the downstream of the cutter, and the connection mode between the second pressing roller and the rack is the same as that between the pressing roller and the rack; the surface of the second pressing roller is contacted with the upper surface of the conveying device when the second pressing roller is naturally placed; the belt covering device also comprises a limiting stopper; the limiting device is arranged between the belt supply part and the compression roller, the limiting device is more than two adjacent horizontal cross rods, the distance between the two adjacent horizontal cross rods is less than 5 mm, and the horizontal cross rods are fixed on the rack through upright posts; the horizontal cross rod is provided with more than 2 transverse limiters, the transverse limiters are sleeved on the horizontal cross rod and move along the horizontal cross rod; the upper surface of the frame is provided with a bulge, and when the compression roller is naturally placed, the connecting rod presses on the bulge; the lowest end of the press roller when naturally placed is higher than the upper surface of the conveying device by a distance of less than 20 mm.

5. The self-sealing carton and carton adhesive tape machine of claim 3, wherein the plurality of adhesive feeders are identical, the adhesive storage box is rectangular, the width of the rectangular is not more than 5 cm, the plurality of adhesive feeders are closely attached to each other, and the corresponding widths of the plurality of adhesive feeders are arranged in a straight line.

6. The self-sealing carton and carton adhesive tape machine of claim 3, wherein there is only one adhesive supplier, a plurality of adhesive outlets are communicated below the adhesive supplier, and each adhesive outlet is controlled by a valve; the glue outlets are arranged on the same straight line.

7. The self-sealing carton and carton adhesive tape machine of claim 2, wherein the inner diameter of the adhesive outlet is narrow at the top and wide at the bottom, and the adhesive outlet moves up and down.

8. The self-sealing carton and carton adhesive tape machine of claim 7, wherein the up-and-down movement is realized by a third transmission device, and the third transmission device is a second cylinder and a second movable block; the glue feeder is connected with the second cylinder through the second movable block, and the other end of the second cylinder is connected with the rack.

9. A method for producing self-bondable cartons by using the self-sealing carton and carton tape machine of claim 1, which is characterized by comprising the following steps:

placing the carton boards to be bonded on the conveying device;

gluing the carton board to be bonded by the glue supplier;

and (3) enabling the carton board to be bonded to pass through the tape covering device for covering the tape, wherein the tape covers the adhesive tape track on the carton board to be bonded.

10. The method for producing self-adhesive cartons by using the self-sealing carton and carton adhesive tape machine of claim 1, as claimed in claim 9,

an inductor used for inducing an object to be glued is installed on an upstream rack of the glue supplier, the inductor is connected with a controller, the controller is connected with the glue supplier and the belt covering device, a man-machine interaction device is arranged on the rack, and the man-machine interaction device is connected with the controller;

the belt covering device comprises a belt supply part, a press roller and a cutter; a belt coil is sleeved on the belt supply part, and one end of the belt coil is led out to be positioned below the compression roller; the cutter is positioned at the downstream of the compression roller and is connected with a second transmission device, the second transmission device is mechanically connected with the rack, and the second transmission device is connected with the controller; the compression roller is horizontally arranged, and the axis of the compression roller is vertical to the advancing direction of the conveying device; two ends or one end of the compression roller are movably connected with a connecting rod, the compression roller rotates around the shaft of the compression roller, the other end of the connecting rod is movably connected with the rack, the connecting rod rotates around the connecting point of the connecting rod and the rack, and the direction of the connecting rod and the advancing direction of the transmission device form an obtuse angle; one or more of the tape coaters;

the belt covering device also comprises a limiting stopper; the limiting device is arranged between the belt supply part and the compression roller, the limiting device is more than two adjacent horizontal cross rods, the distance between the two adjacent horizontal cross rods is less than 5 mm, and the horizontal cross rods are fixed on the rack through upright posts;

the method comprises the following steps:

(1) controlling the human-computer interaction device to adjust parameters;

(2) drawing the belt through the stoppers and the transverse stoppers, and placing the belt under the compression roller again;

(3) placing the carton board to be bonded on the conveying device;

(4) the carton board to be bonded passes through the inductor;

(5) the carton board to be bonded is glued by the glue supplier, and the controller controls the valve to discharge glue only when the carton board to be bonded is below the glue outlet;