Paperboard feeding control method for cutting module

Abstract

The invention belongs to the technical field of cutting equipment, and particularly relates to a cutting module paperboard feeding control method which comprises a whole-width feeding system and a step feeding system, the whole-width feeding system works specifically, a motor of the step feeding system is kept in a relatively static state, and the whole-width feeding system works continuously. Driving rollers at the front end and the rear end of the full-width feeding system act with respective pressing rollers to clamp a strip-shaped paperboard, and the strip-shaped paperboard is tensioned and runs for one plate position under the driving of a full-width feeding motor and is just positioned in a working area of the working step feeding system; the step feeding system works, and the whole feeding system is in a relatively static state. The full-width feeding system and the step feeding system are arranged, the step feeding system is used for controlling left-right feeding of paperboards during specific cutting, and the purpose is specifically achieved through up-down movement of the front sliding roller assembly and the rear sliding roller assembly.

Description

Technical Field

[0001] The invention belongs to the technical field of cutting equipment, and in particular relates to a feeding control method of a cutting module cardboard. Background Art

[0002] Cardboard cutting equipment is a traditional product used to handle the cardboard cutting needs in the later stage of printing. It has developed from mechanical paper cutters to tape-controlled paper cutters, and then to microcomputer program control, color display, full image operation guidance, visual processing, and computer-aided cutting external programming and editing of production data cutting systems, which shorten production preparation time, improve cutting accuracy, reduce labor intensity, and make operation safer.

[0003] However, with the development needs, the cutting process is becoming more and more complicated. Traditional cardboard cutting equipment has only one feeding system, the cutting environment is unstable, and defects such as deviation that affect the cutting effect often occur. Summary of the invention

[0004] The object of the present invention is to provide a cutting module cardboard feeding control method, which overcomes the shortcomings of the prior art. By setting a whole-width feeding system and a step-by-step feeding system, the cardboard movement is controlled by the step-by-step feeding system during specific cutting, and then adjusted by the movement of the front sliding roller assembly and the rear sliding roller assembly. Due to the precise and uniform transmission of the step-by-step feeding motor, its synchronous belt links the front and rear sliding roller assemblies to run along the slider guide rail, and a certain tension force is generated under the support of the cutting platform, the first guide roller, and the second guide roller, so that the strip cardboard provides a stable cutting environment for the trolley cutting tool. At the same time, during the whole-width feeding and step-by-step feeding processes, the rear end pressure roller and the constant pressure roller need sufficient pressure to ensure that the cardboard will not be relatively displaced between the pressure roller and the constant pressure roller, so as to ensure that its advancement and stopping meet the control requirements.

[0005] To solve the above problems, the technical solutions adopted by the present invention are as follows:

[0006] A cutting module cardboard feeding control method comprises a side wall plate, a whole-piece feeding system and a step feeding system, wherein the side wall plate is a part of the cutting module housing and is used to install some parts of the cutting module.

[0007] The whole-width feeding system comprises a whole-width feeding motor, a front-end pressure roller and a constant-speed roller matched therewith, and a rear-end pressure roller and a constant-pressure roller matched therewith. The whole-width feeding motor, the front-end pressure roller and the constant-speed roller matched therewith, and the rear-end pressure roller and the constant-pressure roller matched therewith are all installed and fixed through the side wall plate. The constant-speed roller is located below the front-end pressure roller and is used to clamp the front end of the strip paperboard, and is connected to the driving part of the whole-width feeding motor. The constant-speed roller is driven by the driving part of the whole-width feeding motor to rotate and clamp the strip paperboard to move. The constant-pressure roller is located below the rear-end pressure roller and is used to clamp the rear end of the strip paperboard.

[0008] The step feeding system is located between the front pressure roller and the rear pressure roller, and the step feeding system includes a step feeding motor, a guide roller 1, a guide roller 2, a front sliding roller assembly and a rear sliding roller assembly. The step feeding system includes a step feeding motor, a guide roller 1, a guide roller 2, a front sliding roller assembly and a rear sliding roller assembly, which are all installed and fixed through the side wall plate. The front sliding roller assembly is adjacent to the front pressure roller, and the rear sliding roller assembly is adjacent to the rear pressure roller. The guide roller 1 and the guide roller 2 are located between the front sliding roller assembly and the rear sliding roller assembly, and any one of the guide roller 1 and the guide roller 2 is connected to the step feeding motor and driven to rotate by it.

[0009] After the strip of paperboard enters from the front pressure roller, it passes through the front sliding roller assembly, the first guide roller, the second guide roller, the rear sliding roller assembly in sequence, and finally passes through the rear pressure roller;

[0010] The whole-width feeding system works specifically, the motor of the step feeding system remains relatively stationary, the whole-width feeding motor is driven, the front pressure roller, the constant speed roller and the rear pressure roller, the constant pressure roller each clamp the strip of paperboard to run, so that the strip of paperboard runs to a position just located in the working area of ​​the step feeding system;

[0011] When the step feeding system works, the whole feeding system is in a relatively static state. The cutting trolley performs cutting line by line at a time according to the cutting content. When the tool is a combination of multiple sets of tool, the tool trolley is first allocated to the corresponding area in sequence according to the program compilation content, and each tool trolley will cut in sequence at the designated position. When the strip cardboard is fed in the positive direction X, the step feeding motor is rotated to control the positive feeding of the strip cardboard X. When the X positive feeding is one unit position, the rear sliding roller assembly slides downward by 0.5 units, and the front sliding roller assembly slides upward by 0.5 units. When the strip cardboard is fed in the negative direction X, the step feeding motor is rotated to control the negative feeding of the strip cardboard X. When the X negative feeding is one unit position, the rear sliding roller assembly slides upward by 0.5 units, and the front sliding roller assembly slides downward by 0.5 units.

[0012] When the entire cutting task is completed, the motor of the step feeding system remains relatively stationary, and the entire feeding system starts to work. With the drive of the entire feeding motor, the front pressure roller, constant speed roller and the rear pressure roller, constant pressure roller each clamp the strip of cardboard and run until it reaches the next position, and so on, in a reciprocating cycle.

[0013] Furthermore, the constant pressure roller and the constant speed roller are connected to the full-width feeding motor via a synchronous belt and a tensioning wheel.

[0014] Furthermore, roller main shafts are provided at both ends of the front end pressure roller and the rear end pressure roller, and a manual pressure regulating device, a cam and a switching handle are provided on the roller main shaft in sequence from the inside to the outside. Downward pressure is applied to the front end pressure roller and the rear end pressure roller through the manual pressure regulating device, and the cam is driven to rotate by rotating the switching handle, so that the front end pressure roller and the rear end pressure roller are lifted or lowered according to the characteristics of the cam.

[0015] Furthermore, the manual pressure regulating device includes a pressure regulating handle, a shell and a pressure regulating spring. The pressure regulating handle is installed on the top of the shell through a threaded structure, and the pressure regulating spring is located inside the shell. The upper end of the pressure regulating spring cooperates with the pressure regulating handle, and the lower end cooperates with the roller main shaft through a bearing. The compression state of the pressure regulating spring is controlled by the pressure regulating handle to adjust the pressure of the pressure regulating spring on the roller main shaft.

[0016] Furthermore, a constant-pressure spindle is provided at the end of the constant-pressure roller, and the constant-pressure spindle is installed on the side wall plate through a bearing and extends out of the side wall plate. The part of the constant-pressure spindle extending out of the side wall plate is successively installed with a friction plate bracket and a friction plate, a synchronous wheel and a constant-pressure adjusting device cooperating therewith, the friction plate bracket is key-connected to the constant-pressure spindle, the synchronous wheel is movably connected to the constant-pressure spindle, the synchronous wheel can rotate and slide back and forth on the constant-pressure spindle, the friction plate is fixedly mounted on the synchronous wheel and moves with the synchronous wheel, the constant-pressure adjusting device is horizontally mounted on the outer end of the constant-pressure spindle and the pressure direction is toward the synchronous wheel, the friction plate is pressed against the friction plate bracket by the constant-pressure adjusting device, and the friction plate bracket is driven by the friction force of the friction plate to drive the constant-pressure spindle to rotate.

[0017] Furthermore, the constant pressure regulating device includes a pressure regulating spring bracket, a pressure regulating spring and a constant pressure regulating handle. The pressure regulating spring bracket is movably connected to the constant pressure main shaft and fits with the synchronous wheel. The pressure regulating spring is sleeved on the constant pressure main shaft. The constant pressure regulating handle is installed at the end of the constant pressure main shaft through a threaded connection. The tensioning state of the pressure regulating spring is adjusted by controlling the position of the constant pressure regulating handle to control the pressure of the spring on the pressure regulating spring bracket, thereby indirectly controlling the force of the synchronous wheel and the friction plate.

[0018] Furthermore, a grating sensor is also provided in the manual pressure regulating device or the constant pressure regulating device, and the grating sensor monitors the pressing force of the pressure regulating spring to achieve the requirement of precise adjustment.

[0019] Furthermore, the front sliding roller assembly and the rear sliding roller assembly both include sliding rollers and vertical sliding guide rails, both ends of the sliding rollers are fixed to the side wall panels through the vertical sliding guide rails, and the sliding rollers move up and down under the action of the vertical sliding guide rails.

[0020] Furthermore, the diameter of the synchronous pulley on the constant pressure roller side is smaller than the diameter of the synchronous pulley on the constant speed roller side.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] The present invention discloses a cutting module cardboard feeding control method, which provides a whole-width feeding system and a step feeding system. During specific cutting, the cardboard movement is controlled by the step feeding system, and then adjusted by the movement of the front sliding roller assembly and the rear sliding roller assembly. Due to the precise and uniform transmission of the step feeding motor, its synchronous belt links the front and rear sliding roller assemblies to run along the slider guide rail, and a certain tension force is generated under the support of the cutting platform, the first guide roller, and the second guide roller, so that the strip cardboard provides a stable cutting environment for the trolley cutting tool. At the same time, during the whole-width feeding and step feeding processes, the rear end pressure roller and the constant pressure roller need sufficient pressure to ensure that the cardboard will not be relatively displaced between the pressure roller and the constant pressure roller, so as to ensure that its advancement and stopping meet the control requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 The structure diagram of the whole feeding system Figure 1 .

[0024] Figure 2 The structure diagram of the whole feeding system Figure 2 .

[0025] Figure 3 The structure diagram of the step feeding system Figure 1 .

[0026] Figure 4 The structure diagram of the step feeding system Figure 2 .

[0027] Figure 5 It is a schematic diagram of the structure of the front sliding roller assembly.

[0028] Figure 6 It is a schematic diagram of the structure of the rear sliding roller assembly.

[0029] Figure 7 It is a schematic diagram of the end structure of the front-end pressure roller and the rear-end pressure roller.

[0030] Figure 8 Schematic diagram of the structure of the constant pressure roller DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] Embodiment 1

[0033] As shown in the figure, a cutting module cardboard feeding control method of the present invention includes a whole-piece feeding system and a step feeding system.

[0034] The whole-width feeding system includes a whole-width feeding motor 11, a front-end pressure roller 12 and a constant-speed roller 121 matched therewith, and a rear-end pressure roller 13 and a constant-pressure roller 131 matched therewith. The constant-speed roller 121 is located below the front-end pressure roller 12 and is used to clamp the front end of the strip-shaped paperboard, and is connected to the driving part of the whole-width feeding motor 11. The constant-speed roller is driven by the driving part of the whole-width feeding motor 11 to rotate and clamp the strip-shaped paperboard to move. The constant-pressure roller 131 is located below the rear-end pressure roller 13 and is used to clamp the rear end of the strip-shaped paperboard.

[0035] The step feeding system is located between the front pressure roller 12 and the rear pressure roller 13, and includes a step feeding motor 20, a guide roller 1 21, a guide roller 2 22, a front sliding roller assembly 23 and a rear sliding roller assembly 24, wherein the front sliding roller assembly is adjacent to the front pressure roller, the rear sliding roller assembly is adjacent to the rear pressure roller, the guide roller 1 and the guide roller 2 are located between the front sliding roller assembly and the rear sliding roller assembly, and any one of the guide roller 1 and the guide roller 2 is connected to the step feeding motor and driven to rotate by it;

[0036] After the strip of paperboard enters from the front pressure roller, it passes through the front sliding roller assembly, the first guide roller, the second guide roller, the rear sliding roller assembly in sequence, and finally passes through the rear pressure roller;

[0037] The whole-width feeding system works specifically, the motor of the step feeding system remains relatively stationary, the whole-width feeding motor is driven, the front pressure roller, the constant speed roller and the rear pressure roller, the constant pressure roller each clamp the strip of paperboard to run, so that the strip of paperboard runs to a position just located in the working area of ​​the step feeding system;

[0038] When the step feeding system works, the whole feeding system is in a relatively static state. The cutting trolley performs cutting line by line at a time according to the cutting content. When the tool is a combination of multiple sets of tool, the tool trolley is first allocated to the corresponding area in sequence according to the program compilation content, and each tool trolley will cut in sequence at the designated position. When the strip cardboard is fed in the positive direction X, the step feeding motor is rotated to control the positive feeding of the strip cardboard X. When the X positive feeding is one unit position, the rear sliding roller assembly slides downward by 0.5 units, and the front sliding roller assembly slides upward by 0.5 units. When the strip cardboard is fed in the negative direction X, the step feeding motor is rotated to control the negative feeding of the strip cardboard X. When the X negative feeding is one unit position, the rear sliding roller assembly slides upward by 0.5 units, and the front sliding roller assembly slides downward by 0.5 units.

[0039] When the entire cutting task is completed, the motor of the step feeding system remains relatively stationary, and the entire feeding system starts to work. With the drive of the entire feeding motor, the front pressure roller, constant speed roller and the rear pressure roller, constant pressure roller each clamp the strip of cardboard and run until it reaches the next position, and so on, in a reciprocating cycle.

[0040] Furthermore, the constant pressure roller 131 and the constant speed roller 121 are connected to the full-width feeding motor 11 through a synchronous belt 110 and a tensioning wheel 111, and the diameter of the synchronous pulley on one side of the constant pressure roller is smaller than that on the side of the constant speed roller.

[0041] Furthermore, the front sliding roller assembly 23 and the rear sliding roller assembly 24 both include a sliding roller 241 and a vertical sliding guide rail 240. Both ends of the sliding roller are fixed to the side wall panel 1 through the vertical sliding guide rail, and the sliding roller moves up and down under the action of the vertical sliding guide rail.

[0042] Embodiment 2

[0043] Furthermore, roller main shafts 100 are provided at both ends of the front end pressure roller and the rear end pressure roller, and a manual pressure regulating device, a cam 101 and a switching handle 105 are provided on the roller main shaft 100 in sequence from the inside to the outside. The manual pressure regulating device is used to apply downward pressure to the front end pressure roller and the rear end pressure roller, and the cam 101 is driven to rotate by rotating the switching handle 105, so that the front end pressure roller and the rear end pressure roller are lifted or lowered according to the characteristics of the cam.

[0044] Furthermore, the manual pressure regulating device includes a pressure regulating handle 102, a shell 103 and a pressure regulating spring 104. The pressure regulating handle is installed on the top of the shell through a threaded structure, and the pressure regulating spring is located in the shell. The upper end of the pressure regulating spring cooperates with the pressure regulating handle, and the lower end cooperates with the roller main shaft through a bearing. The compression state of the pressure regulating spring is controlled by the pressure regulating handle to adjust the pressure of the pressure regulating spring on the roller main shaft.

[0045] Furthermore, a constant pressure spindle 1311 is provided at the end of the constant pressure roller, and the constant pressure spindle 1311 is installed on the side wall plate 1 through a bearing and the constant pressure spindle extends out of the side wall plate, and the part of the constant pressure spindle extending out of the side wall plate 1 is successively installed with a friction plate bracket 1312 and a friction plate 1313, a synchronous wheel 1314 and a constant pressure adjusting device cooperating therewith, the friction plate bracket 1312 is key-connected with the constant pressure spindle 1311, and the synchronous wheel 1314 is movably connected to the constant pressure spindle 1311, and the synchronous wheel 1314 can rotate and slide back and forth on the constant pressure spindle, and the friction plate 1313 is fixedly installed on the synchronous wheel and moves with the synchronous wheel, and the constant pressure adjusting device is horizontally installed at the outer end of the constant pressure spindle and the pressure direction is toward the synchronous wheel, and the friction plate is pressed against the friction plate bracket by the constant pressure adjusting device on the synchronous wheel, and the friction plate bracket is driven by the friction force of the friction plate to drive the constant pressure spindle to rotate.

[0046] Furthermore, the constant pressure regulating device includes a pressure regulating spring bracket 1315, a pressure regulating spring 1316 and a constant pressure regulating handle 1317, the pressure regulating spring bracket is movably connected to the constant pressure main shaft and fits with the synchronous wheel, the pressure regulating spring is sleeved on the constant pressure main shaft, and the constant pressure regulating handle is installed on the end of the constant pressure main shaft through a threaded connection. The tensioning state of the pressure regulating spring is adjusted by controlling the position of the constant pressure regulating handle to control the pressure of the spring on the pressure regulating spring bracket, thereby indirectly controlling the force of the synchronous wheel and the friction plate.

[0047] Furthermore, a grating sensor is also provided in the manual pressure regulating device or the constant pressure regulating device, and the grating sensor monitors the pressing force of the pressure regulating spring to achieve the requirement of precise adjustment.

[0048] Constant pressure roller structural features:

[0049] Both the constant pressure roller and the constant speed roller are precisely driven by the full-width feed motor. In the same system setting, the motor output speed is constant and its transmission belt linear speed is also kept constant. However, due to the particularity of the cutting process, the length of the cardboard may change slightly before and after cutting, so the speed of the constant pressure roller at the back may be a little faster. During the design, the mechanism of the constant pressure roller is designed as shown in the constant pressure roller structure diagram in the figure, and the mechanism of the constant speed roller is designed as shown in the constant speed roller structure diagram in the figure, and the diameter of the synchronous pulley on one side of the constant pressure roller is smaller than the diameter of the synchronous pulley on the constant speed roller side. During a specific period, the size of the cardboard changes before and after cutting, that is, the side of the size is longer, and the diameter of the synchronous pulley on one side of the constant pressure roller is smaller. When the linear speed is equal, the angular velocity is large, and the outer diameter of the constant pressure roller and the constant speed roller are the same. The constant pressure roller is relatively faster and the excess length is taken away in time. When there is no change in the size of the cardboard before and after cutting, the constant pressure roller rotates too fast, which will inevitably produce a blocking force. This blocking force will produce a certain resistance torque on the constant pressure roller, but when the torque reaches a certain value, the resistance of the pressure regulating spring on the friction plate is not enough to maintain balance, the friction plate begins to slip, the synchronous pulley of the constant pressure roller idles, and the constant pressure roller is relatively static. Reasonable adjustment of the constant pressure regulating handle can ensure that the constant pressure roller operates within a constant pressure range. Reasonable adjustment of the constant pressure regulating handle: The reaction force generated by the compression of the spring provides a certain friction resistance for the friction plate, thereby ensuring the constant pressure roller to operate at constant pressure.

[0050] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A cutting module cardboard feeding control method, comprising a side wall plate, the side wall plate being a part of the cutting module housing, and being used to install some parts of the cutting module, characterized in that: It also includes the whole-width feeding system and the work-step feeding system; The whole-width feeding system comprises a whole-width feeding motor, a front-end pressure roller and a constant-speed roller matched therewith, and a rear-end pressure roller and a constant-pressure roller matched therewith. The whole-width feeding motor, the front-end pressure roller and the constant-speed roller matched therewith, and the rear-end pressure roller and the constant-pressure roller matched therewith are all installed and fixed through the side wall plate. The constant-speed roller is located below the front-end pressure roller and is used to clamp the front end of the strip paperboard, and is connected to the driving part of the whole-width feeding motor. The constant-speed roller is driven by the driving part of the whole-width feeding motor to rotate and clamp the strip paperboard to move. The constant-pressure roller is located below the rear-end pressure roller and is used to clamp the rear end of the strip paperboard. The step feeding system is located between the front pressure roller and the rear pressure roller, and the step feeding system includes a step feeding motor, a guide roller 1, a guide roller 2, a front sliding roller assembly and a rear sliding roller assembly. The step feeding system includes a step feeding motor, a guide roller 1, a guide roller 2, a front sliding roller assembly and a rear sliding roller assembly, which are all installed and fixed through the side wall plate. The front sliding roller assembly is adjacent to the front pressure roller, and the rear sliding roller assembly is adjacent to the rear pressure roller. The guide roller 1 and the guide roller 2 are located between the front sliding roller assembly and the rear sliding roller assembly, and any one of the guide roller 1 and the guide roller 2 is connected to the step feeding motor and driven to rotate by it. After the strip of paperboard enters from the front pressure roller, it passes through the front sliding roller assembly, the first guide roller, the second guide roller, the rear sliding roller assembly in sequence, and finally passes through the rear pressure roller; The whole-width feeding system works specifically, the motor of the step feeding system remains relatively stationary, the whole-width feeding motor is driven, the front pressure roller, the constant speed roller and the rear pressure roller, the constant pressure roller each clamp the strip of paperboard to run, so that the strip of paperboard runs to a position just located in the working area of ​​the step feeding system; When the step feeding system works, the whole feeding system is in a relatively static state. The cutting trolley performs cutting line by line at a time according to the cutting content. When the tool is a combination of multiple sets of tool, the tool trolley is first allocated to the corresponding area in sequence according to the program compilation content, and each tool trolley will cut in sequence at the designated position. When the strip cardboard is fed in the positive direction X, the step feeding motor is rotated to control the positive feeding of the strip cardboard X. When the X positive feeding is one unit position, the rear sliding roller assembly slides downward by 0.5 units, and the front sliding roller assembly slides upward by 0.5 units. When the strip cardboard is fed in the negative direction X, the step feeding motor is rotated to control the negative feeding of the strip cardboard X. When the X negative feeding is one unit position, the rear sliding roller assembly slides upward by 0.5 units, and the front sliding roller assembly slides downward by 0.5 units. When the entire cutting task is completed, the motor of the step feeding system remains relatively stationary, and the entire feeding system starts to work. With the drive of the entire feeding motor, the front pressure roller, constant speed roller and the rear pressure roller, constant pressure roller each clamp the strip of cardboard and run until it reaches the next position, and so on, in a reciprocating cycle.

2. A cutting module cardboard feeding control method according to claim 1, characterized in that: The constant pressure roller and the constant speed roller are connected to the driving part of the whole-width feeding motor through a synchronous belt and a tensioning wheel.

3. A cutting module cardboard feeding control method according to claim 2, characterized in that: Both ends of the front-end pressure roller and the rear-end pressure roller are provided with roller main shafts, and a manual pressure regulating device, a cam and a switching handle are sequentially provided on the roller main shaft from the inside to the outside. The manual pressure regulating device is used to apply downward pressure to the front-end pressure roller and the rear-end pressure roller, and the cam is driven to rotate by rotating the switching handle, so that the front-end pressure roller and the rear-end pressure roller are lifted or lowered according to the characteristics of the cam.

4. A cutting module cardboard feeding control method according to claim 3, characterized in that: The manual pressure regulating device includes a pressure regulating handle, a shell and a pressure regulating spring. The pressure regulating handle is installed on the top of the shell through a threaded structure. The pressure regulating spring is located in the shell. The upper end of the pressure regulating spring cooperates with the pressure regulating handle, and the lower end cooperates with the roller main shaft through a bearing. The compression state of the pressure regulating spring is controlled by the pressure regulating handle to adjust the pressure of the pressure regulating spring on the roller main shaft.

5. A cutting module cardboard feeding control method according to claim 2, characterized in that: The end of the constant-pressure roller is provided with a constant-pressure spindle, which is installed on the side wall plate through a bearing and extends out of the side wall plate. The part of the constant-pressure spindle extending out of the side wall plate is successively installed with a friction plate bracket and a friction plate, a synchronous wheel and a constant-pressure adjusting device cooperating therewith. The friction plate bracket is key-connected with the constant-pressure spindle, and the synchronous wheel is movably connected to the constant-pressure spindle. The synchronous wheel can rotate and slide back and forth on the constant-pressure spindle. The friction plate is fixedly mounted on the synchronous wheel and moves with the synchronous wheel. The constant-pressure adjusting device is horizontally mounted on the outer end of the constant-pressure spindle and the pressure direction is toward the synchronous wheel. The friction plate is pressed against the friction plate bracket by the constant-pressure adjusting device on the synchronous wheel, and the friction plate bracket is driven by the friction force of the friction plate to drive the constant-pressure spindle to rotate.

6. A cutting module cardboard feeding control method according to claim 5, characterized in that: The constant pressure regulating device includes a pressure regulating spring bracket, a pressure regulating spring and a constant pressure regulating handle. The pressure regulating spring bracket is movably connected to the constant pressure main shaft and fits with the synchronous wheel. The pressure regulating spring is sleeved on the constant pressure main shaft. The constant pressure regulating handle is installed at the end of the constant pressure main shaft through a threaded connection. The tensioning state of the pressure regulating spring is adjusted by controlling the position of the constant pressure regulating handle to control the pressure of the spring on the pressure regulating spring bracket, thereby indirectly controlling the force of the synchronous wheel and the friction plate.

7. A cutting module cardboard feeding control method according to any one of claims 4 or 6, characterized in that: The manual pressure regulating device or the constant pressure regulating device is also provided with a grating sensor, which monitors the pressing force of the pressure regulating spring to achieve the requirement of precise adjustment.

8. A cutting module cardboard feeding control method according to claim 1, characterized in that: The front sliding roller assembly and the rear sliding roller assembly both include sliding rollers and vertical sliding guide rails. Both ends of the sliding rollers are fixed to the side wall panels through the vertical sliding guide rails. The sliding rollers move up and down under the action of the vertical sliding guide rails.

9. A cutting module cardboard feeding control method according to claim 2, characterized in that: The diameter of the synchronous pulley on one side of the constant pressure roller is smaller than the diameter of the synchronous pulley on one side of the constant speed roller.

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