Pressing plate structure, slitting machine and method for slitting cardboard

Abstract

The present invention discloses a pressing plate structure, a sheet splitting machine and a method for sheeting cardboard. The pressing plate structure comprises a lifting assembly fixed on a frame, the output end of the lifting assembly is connected to a mounting frame, a pressing plate is slidably connected to the mounting frame, an air bag is installed between the pressing plate and the mounting frame, the edge of the pressing plate of the sheet splitting machine can be slidably connected to the mounting frame, and the air bag is placed in a space formed between the pressing plate and the mounting frame. Therefore, when the pressing plate moves relative to the mounting frame under the action of the air bag, it is guided by the position of the sliding connection between the edge of the pressing plate and the mounting frame, so that the pressing plate is more stable when it moves relative to the mounting frame.

Description

Technical Field

[0001] The invention relates to the field of carton production, and in particular to a pressing plate structure, a sheet splitting machine and a method for sheet splitting paperboard. Background Art

[0002] In the production of cartons, some production lines use the one-to-many method to produce small cartons, that is, the cardboard is divided into two or more pieces after passing through the die-cutting machine or the box-gluing machine to form corresponding small cartons. In order to improve efficiency, a splitter is usually used to realize the function of dividing the cardboard from one piece into two or more pieces.

[0003] In the existing sheet splitting machine, the pressing plate structure usually adopts a chain plus a double-head telescopic cylinder to clamp the cardboard. Since this method has chains on both the upper and lower parts, only two telescopic cylinders can be set on both sides of the single-sided clamping plate. For larger cardboards, the clamping is unstable, so it can only be used to split small cardboards into smaller ones; and when the pressing plate structure of the existing sheet splitting machine squeezes the cardboard, its pressure is transmitted to the piston of the telescopic cylinder, which is easy to cause damage to the piston of the telescopic cylinder.

[0004] It can be seen that the existing technology still needs to be improved and enhanced. Summary of the invention

[0005] In view of the above-mentioned deficiencies of the prior art, the purpose of the present invention is to provide a pressing plate structure, a slitting machine and a method for slitting cardboard, aiming to solve the problem that the pressing plate of the existing slitting machine may cause unstable clamping when squeezing larger cardboard.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A pressing plate structure comprises a lifting assembly whose output end is fixedly connected to a frame, a mounting frame fixedly connected to the lifting assembly, a pressing plate slidably connected to the mounting frame, and an air bag installed between the pressing plate and the mounting frame.

[0008] In the pressure plate structure, a tension spring is installed on the mounting frame, one end of the tension spring is connected to the mounting frame, and the other end is connected to the pressure plate.

[0009] The pressure plate structure also includes a guide rail fixed on the frame, and the mounting frame is slidably connected to the frame through the guide rail; the lifting assembly includes a second drive motor fixed on the mounting frame, a second gear transmission-connected to the output end of the second drive motor, and a second rack fixed on the frame, and the second rack is meshingly connected to the second gear.

[0010] The pressure plate structure also includes a telescopic component and a mounting block fixed on the mounting frame. The mounting block is provided with a slide groove. A locking block is fixed to the protruding end of the telescopic component. The locking block is slidably connected to the slide groove. When the protruding end of the telescopic component is in an extended state, the locking block is inserted into the second rack.

[0011] In the pressure plate structure, there are more than two second gears, all of which are rotatably connected to the mounting frame, the second drive motor is transmission-connected to one of the second gears, and the telescopic assembly is arranged between two adjacent second gears.

[0012] The pressure plate structure also includes a telescopic component and a mounting block fixed on the frame. The mounting block is provided with a slide groove. A locking block is fixed to the protruding end of the telescopic component. The locking block is slidably connected to the slide groove. When the protruding end of the telescopic component is in an extended state, the locking block is inserted into the mounting frame.

[0013] A sheet splitter comprises a frame, wherein the frame comprises a fixed frame and a swing frame, the lower part of the swing frame is rotatably connected to the fixed frame, a swing drive assembly is connected between the upper part of the swing frame and the upper part of the fixed frame, the middle parts of the swing frame and the fixed frame are provided with the pressure plate structure, and the fixed frame and the swing frame are provided with a cardboard placement platform under the pressure plate structure.

[0014] In the sheet splitter, the fixed frame and the swing frame are provided with a belt transmission structure below the pressure plate structure, the transmission plane of the belt transmission structure forms the cardboard placement platform, and the swing frame is fixed with a photoelectric switch for detecting the position of the cardboard.

[0015] A method for separating cardboard into pieces comprises the following steps:

[0016] S100: The controller controls the lifting assembly to drive the mounting frame to descend to a set height;

[0017] S200: the controller receives a sheet separation signal, and the airbag is inflated with gas, so that the pressing plate is pressed on the paperboard; S300: the controller controls the swing drive assembly to work, so that the swing frame swings a certain angle around the rotation connection position with the fixed frame;

[0018] S400: The controller controls the swing drive assembly to drive the swing frame to swing in the opposite direction and reset;

[0019] S500: the air bag discharges gas, so that the pressing plate leaves the paperboard;

[0020] S600: Repeat steps S200-S500 until the controller receives a signal for replacing paperboards of different thicknesses or a shutdown signal, and the controller controls the lifting assembly to drive the mounting frame to rise to a set height.

[0021] In the method for separating paperboard into pieces, before step S100, the height at which the mounting frame descends is set on the controller according to the thickness of the paperboard; step S100 includes:

[0022] S110: Control the telescopic assembly to retract so that the locking block leaves the second rack position;

[0023] S120: The second driving motor rotates to lower the mounting frame to a set height;

[0024] S130: Control the telescopic end of the telescopic assembly to extend so that the locking block is stuck on the second rack;

[0025] In step S600, the controller controls the lifting assembly to drive the mounting frame to rise to a set height, including:

[0026] S610: Control the telescopic end of the telescopic assembly to retract, so that the locking block leaves the second rack position;

[0027] S620: The second driving motor rotates to raise the mounting frame to a set height;

[0028] S630: Control the telescopic end of the telescopic assembly to extend so that the locking block is stuck on the second rack.

[0029] In the method for separating cardboard, in step S200, the belt conveyor structure conveys the cardboard to the bottom of the pressing plate, and after the photoelectric switch detects the cardboard, it sends a signal to the controller, and the signal is a separation signal; after step S500, the belt conveyor structure conveys the cardboard out from under the pressing plate, and at the same time conveys the next pile of cardboard to the bottom of the pressing plate.

[0030] A method for separating cardboard into pieces comprises the following steps:

[0031] Y100: The controller receives the slicing signal, and controls the lifting assembly to drive the mounting frame down to the set height;

[0032] Y200: The airbag is inflated with gas, so that the pressing plate is pressed on the cardboard;

[0033] Y300: The controller controls the swing drive assembly to work, so that the swing frame swings a certain angle around the rotation connection position with the fixed frame;

[0034] Y400: The controller controls the swing drive assembly to drive the swing frame to swing in the opposite direction and reset;

[0035] Y500: The airbag discharges gas, causing the pressing plate to leave the paperboard;

[0036] Y600: The controller controls the lifting assembly to drive the mounting frame to rise to the set height;

[0037] Y700: Repeat steps Y100-Y600 until the controller receives a signal to replace cardboard of different thicknesses or a stop signal.

[0038] Beneficial effect: The edge of the pressing plate of the slitting machine can be slidably connected to the mounting frame, and the airbag is placed in the space formed between the pressing plate and the mounting frame. Therefore, when the pressing plate moves relative to the mounting frame under the action of the airbag, it is guided by the position of the sliding connection between the edge of the pressing plate and the mounting frame, making the pressing plate more stable when moving relative to the mounting frame.

[0039] In addition, the pressure plate structure also includes a telescopic component and a mounting block fixed on the mounting frame, the mounting block is provided with a slide groove, the extended end of the telescopic component is fixed with a locking block, the locking block is slidably connected with the slide groove, when the extended end of the telescopic component is in an extended state, the locking block is inserted on the second rack, and the telescopic component, the mounting block and the locking block constitute a locking mechanism for locking the position of the mounting frame. When the mounting frame does not need to be moved, the locking block is inserted on the second rack to achieve the locking and fixing of the mounting frame. When the mounting frame is in a locked and fixed state, the airbag is inflated to make the pressure plate press the cardboard. Since the mounting frame is locked by the locking block, the reverse force of the cardboard on the pressure plate will not affect the second drive motor, that is, the reverse force of the cardboard on the pressure plate acts on the locking block and the mounting block, thereby improving the service life of the second drive motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 It is a three-dimensional structural diagram of the slicing machine.

[0041] Figure 2 This is the left side view of the slicing machine.

[0042] Figure 3 yes Figure 2 Section view in the AA direction.

[0043] Figure 4 yes Figure 2 Cross-sectional view in the BB direction.

[0044] Description of the main component symbols: 100-frame, 110-fixed frame, 120-swinging frame, 200-swinging drive assembly, 210-first drive motor, 220-first gear, 230-first rack, 231-limit baffle, 240-swinging bracket, 250-slide rail, 300-pressure plate structure, 333-lifting assembly, 310-guide rail, 320-second drive motor, 330-second gear, 340-second rack, 350-tension spring, 360-airbag, 370-pressure plate, 380-locking mechanism, 381-mounting block, 382-telescopic assembly, 383-locking block, 390-mounting frame, 400-belt transmission structure, 410-cardboard placement platform. DETAILED DESCRIPTION

[0045] The present invention provides a pressing plate structure, a slitting machine and a method for slitting paperboard. In order to make the purpose, technical solution and effect of the present invention clearer and more specific, the present invention is further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the scope of protection of the present invention.

[0046] See also Figure 1-4 A sheet splitter includes a frame 100 composed of a fixed frame 110 and a swing frame 120, wherein the lower part of the swing frame 120 is rotatably connected to the fixed frame 110, and a swing drive assembly 200 is connected between the upper part of the swing frame 120 and the upper part of the fixed frame 110, and the middle parts of the swing frame 120 and the fixed frame 110 are provided with the pressing plate structure 300, and the fixed frame 110 and the swing frame 120 are provided with a cardboard placement platform 410 below the pressing plate structure 300. When the cardboard is sliced, the two ends of the cardboard are placed on the cardboard placement platforms 410 of the fixed frame 110 and the swing frame 120 respectively, and then the pressing plate 370 is driven to press the cardboard, and then the swing frame 120 is driven to swing by the swing drive assembly 200. Since the cardboard is pressed by the pressing plate 370 on one side of the fixed frame 110 and the swing frame 120, the cardboard is torn during the swinging of the swing frame 120, so as to achieve sheet splitting.

[0047] In a preferred embodiment, the fixed frame 110 and the swing frame 120 are provided with a belt conveyor structure 400 below the pressing plate 370 assembly 300, and the conveying plane of the belt conveyor structure 400 forms the cardboard placement platform 410. A photoelectric switch for detecting the position of the cardboard is fixed on the swing frame 120. When the cardboard is conveyed to a specified position through the belt conveyor structure 400, the signal of the photoelectric switch is triggered, thereby controlling the belt conveyor structure 400 to stop conveying, and then controlling the pressing plate 370 to press the cardboard, and controlling the swing drive assembly 200 to drive the swing frame 120 to swing, thereby automatically completing the cardboard separation.

[0048] When the slitting machine is used in a production line, the fixed frame 110 is used as the cardboard conveying entry end. After the cardboard is slid, it is conveyed from the swing frame 120 to the next process.

[0049] In a preferred embodiment, the swing drive assembly 200 includes a swing bracket 240, a first drive motor 210, a first gear 220, a slide rail 250 and a first rack 230. The swing bracket 240 is rotatably connected to the upper part of the fixed frame 110, the first drive motor 210 is fixed on the swing bracket 240, the first gear 220 is rotatably connected to the swing bracket 240, and the first gear 220 is transmission-connected to the output end of the first drive motor 210, the slide rail 250 is fixed on the swing bracket 240, one end of the first rack 230 is hinged to the upper part of the swing frame 120, and the other end is slidably connected to the slide rail 250, and the first rack 230 is meshingly connected to the first gear 220.

[0050] In the above, by setting the swing bracket 240, the first drive motor 210, the first gear 220 and the slide rail 250 are installed on the swing bracket 240, the first gear 220 is meshed and connected with the first rack 230, and the first rack 230 is slidably connected with the slide rail 250, and the slide rail 250 limits the moving direction of the first rack 230, and one end of the first rack 230 is rotatably connected to the swing frame 120, so that the first drive motor 210 drives the first rack 230 to move, so as to realize the swing of the swing frame 120. Among them, since the swing bracket 240 can swing around the connection point with the fixed frame 110, when the first drive motor 210 swings the swing frame 120, the first rack 230 is not interfered when the swing frame 120 swings.

[0051] See also Figure 1 and Figure 2 In this embodiment, since the swing drive assembly 200 is composed of a swing bracket 240, a first drive motor 210, a first gear 220, a slide rail 250 and a first rack 230, multiple groups of first gears 220, slide rails 250 and first rack 230 structures can be set in the width direction of the frame 100, and all the first gears can be connected to the same motor through a rotating shaft, so that the swing frame 120 is more stable when swinging, and the number of motors used does not need to be increased, thereby reducing costs.

[0052] In a preferred embodiment, the swing drive assembly 200 includes a drive motor fixed on the fixed frame 110, a crank fixed on the output end of the drive motor, and a connecting rod rotatably connected to the crank, and the end of the connecting rod away from the crank is hinged to the swing frame 120, that is, the swing drive assembly 200 is an existing crank-connecting rod structure, which is not described in detail here.

[0053] See also Figure 1-4A pressure plate structure, which can be used for the pressure plate structure 300 of the above-mentioned slicing machine, includes a lifting assembly 333 fixedly connected to the output end and the frame 100, a mounting frame 390 fixedly connected to the lifting assembly 333, a pressure plate 370 slidably connected to the mounting frame 390, and an airbag 360 installed between the pressure plate 370 and the mounting frame 390. The lifting component 333 is installed on the mounting frame 390, and the output end of the lifting component 333 is fixedly connected to the frame 100, so that the lifting component 333 can drive the mounting frame 390 and the frame 100 to move relative to each other. Since the frame is fixed, the lifting component 333 can drive the mounting frame 390 to move up and down, wherein the pressing plate 370 is slidably connected to the mounting frame 390, and the pressing plate 370 is connected to the mounting frame 390 through the airbag 360. Therefore, when it is necessary to press the cardboard, the cardboard is first placed directly under the pressing plate 370, and then the lifting component 333 drives the entire body consisting of the mounting frame 390, the airbag 360 and the pressing plate 370 to move downward, and after descending to a certain height, the airbag 360 is inflated to expand the airbag 360, so that the pressing plate 370 is pressed on the cardboard to achieve compression of the cardboard. Since the airbag 360 can be laid flat between the pressing plate 370 and the mounting frame 390 , after the airbag 360 is inflated, the pressure distribution area of ​​the pressing plate 370 applied by the airbag 360 is larger, thereby making the pressing plate 370 more stable when pressing the cardboard.

[0054] In the above, the edge of the pressure plate 370 can be slidably connected to the mounting frame 390, and the airbag 360 is placed in the space formed between the pressure plate 370 and the mounting frame 390. Therefore, when the pressure plate 370 moves relative to the mounting frame 390 under the action of the airbag 360, it is guided by the position of the sliding connection between the edge of the pressure plate 370 and the mounting frame 390, so that the pressure plate 370 is more stable when it moves relative to the mounting frame 390.

[0055] In a preferred embodiment, a tension spring 350 is installed on the mounting frame 390. The tension spring 350 is in a stretched state, one end of the tension spring 350 is connected to the mounting frame 390, and the other end is connected to the pressure plate 370. When the pressure plate 370 needs to be released, the airbag 360 needs to be exhausted. Since the tension spring 350 is provided, the tension spring 350 pulls the pressure plate 370 to move toward the mounting frame 390, accelerating the exhaust of gas in the airbag 360.

[0056] In a preferred embodiment, the pressure plate structure 300 also includes a guide rail 310 fixed on the frame 100, and the mounting frame 390 is slidably connected to the frame 100 through the guide rail 310; when the lifting component 333 drives the mounting frame 390 to rise and fall, the mounting frame 390 can only move along the direction restricted by the guide rail 310, so the mounting frame 390 is more stable when moving, and when the pressure plate 370 presses the cardboard and the slitter tears the cardboard, the mounting frame 390 will not shake at will under the restriction of the guide rail 310.

[0057] In a preferred embodiment, the lifting assembly 333 includes a second drive motor 320 fixed on the mounting frame 390, a second gear 330 transmission-connected to the output end of the second drive motor 320, and a second rack 340 fixed on the frame 100. The second drive motor 320 is fixed on the mounting frame 390, the second gear 330 can be fixed on the output shaft of the second drive motor 320, the second gear 330 can also be rotationally connected to the mounting frame 390, and the second drive motor 320 is transmission-connected to the second gear 330 through an existing transmission structure. When the second drive motor 320 rotates, it drives the second gear 330 to rotate, thereby realizing the lifting and lowering of the mounting frame 390.

[0058] In a preferred embodiment, the pressure plate structure 300 further includes a telescopic assembly 382 and a mounting block 381 fixed on the mounting frame 390, a slide groove is provided on the mounting block 381, a locking block 383 is fixed to the extended end of the telescopic assembly 382, ​​and the locking block 383 is slidably connected to the slide groove. When the extended end of the telescopic assembly 382 is in an extended state, the locking block 383 is inserted into the second rack 340. The telescopic assembly 382, ​​the mounting block 381 and the locking block 383 constitute a locking mechanism 380 for locking the position of the mounting frame 390. When the mounting frame 390 does not need to move, the locking block 383 is inserted into the second rack 340 to achieve locking of the mounting frame 390, so that the mounting frame 390 cannot move up and down. When the mounting frame 390 is in a locked and fixed state, the airbag 360 is inflated to make the pressure plate 370 press the cardboard. Since the mounting frame 390 is locked by the locking block 383, the reverse force of the cardboard on the pressure plate 370 will not affect the second drive motor 320. That is, the reverse force of the cardboard on the pressure plate 370 acts on the locking block 383 and the mounting block 381, thereby increasing the service life of the second drive motor 320.

[0059] Preferably, there are more than two second gears 330, and the second gears 330 are all rotatably connected to the mounting frame 390. The second drive motor 320 is in transmission connection with one of the second gears 330, and the telescopic assembly 382 is arranged between two adjacent second gears 330. One of the second gears 330 is used as a driving wheel, and the remaining second gears 330 are used to increase the meshing points with the second rack 340, provide stability to the mounting frame 390 fixedly mounted with the second rack 340, and prevent the second rack 340 from shaking. The telescopic assembly 382 is arranged between two adjacent second gears 330, so as to ensure that when the telescopic end of the telescopic assembly 382 is in an extended state, the locking block 383 can be inserted into the second rack 340. In actual application, the locking block 383 is inserted between two adjacent gear teeth of the second rack 340.

[0060] A method for separating cardboard into pieces comprises the following steps:

[0061] S100: The controller controls the lifting assembly 333 to drive the mounting frame 390 to descend to a set height, so that before the airbag 360 is inflated, the distance between the pressing plate 370 and the paperboard is smaller than the distance that the airbag 360 can push the pressing plate 370 to move, ensuring that the airbag 360 can press the paperboard after inflation.

[0062] Wherein, the step S100 includes:

[0063] S110 : Control the telescopic assembly 382 to retract, so that the locking block 383 leaves the position of the second rack 340 .

[0064] S120: The second driving motor 320 rotates to lower the mounting bracket 390 to a set height.

[0065] S130 : Control the telescopic end of the telescopic assembly 382 to extend so that the locking block 383 is stuck on the second rack 340 .

[0066] When the mounting frame 390 does not need to be moved, the locking block 383 is stuck on the second rack 340, that is, the mounting frame 390 is locked, so that when the pressing plate 370 presses the cardboard, the reverse force of the cardboard on the pressing plate 370 will not affect the second driving motor 320.

[0067] S200: The controller receives the sheet separation signal, and the airbag 360 is filled with gas, so that the pressing plate 370 is pressed on the paperboard. Specifically, after the airbag 360 is filled with gas, the airbag 360 expands and drives the pressing plate 370 to move downward, so that the pressing plate 370 presses the paperboard.

[0068] S300: The controller controls the swing drive assembly 200 to work, so that the swing frame 120 swings a certain angle around the rotation connection position with the fixed frame 110, so that the cardboard on the cardboard placement platform 410 with two ends respectively placed on the swing frame 120 and the fixed frame 110 is torn apart, and two pieces of cardboard are formed from one piece of cardboard.

[0069] S400: The controller controls the swing driving assembly 200 to drive the swing frame 120 to swing in the opposite direction and reset, that is, the swing frame 120 is reset to the position at which the cardboard is initially placed.

[0070] S500: The airbag 360 discharges gas, so that the pressing plate 370 leaves the paperboard. After the airbag 360 discharges gas, the airbag 360 contracts, so that the pressing plate 370 rises and no longer presses on the paperboard, so that the separated paperboard can be removed from the paperboard placement platform 410.

[0071] S600: Repeat steps S200-S500 to continuously separate the cardboard until the controller receives a signal for replacing cardboard of different thicknesses or a stop signal, and the controller controls the lifting assembly 333 to drive the mounting frame 390 to rise to a set height.

[0072] The step of the controller controlling the lifting assembly 333 to drive the mounting frame 390 to rise to a set height includes:

[0073] S610: Control the telescopic end of the telescopic assembly 382 to retract, so that the locking block 383 leaves the position of the second rack 340 .

[0074] S620: The second driving motor 320 rotates to raise the mounting bracket 390 to a set height.

[0075] S630 : Control the telescopic end of the telescopic assembly 382 to extend so that the locking block 383 is stuck on the second rack 340 .

[0076] Specifically, before step S100, the height of the mounting frame 390 is set on the controller according to the thickness of the paperboard.

[0077] In step S200, the belt conveyor structure 400 conveys the cardboard to the bottom of the pressing plate 370. After the photoelectric switch detects the cardboard, it sends a signal to the controller, and the signal is a piece separation signal. After step S500, the belt conveyor structure 400 conveys the cardboard out from under the pressing plate 370, and at the same time conveys the next pile of cardboard to the bottom of the pressing plate 370, thereby realizing automatic cardboard conveying.

[0078] In another preferred embodiment, a method for separating paperboard into pieces comprises the following steps:

[0079] Y100: The controller receives the slicing signal, and controls the lifting assembly 333 to drive the mounting frame 390 to descend to a set height.

[0080] Y200: The airbag 360 is inflated with gas, so that the pressing plate 370 is pressed on the cardboard.

[0081] Y300: The controller controls the swing drive assembly 200 to work, so that the swing frame 120 swings a certain angle around the rotation connection position with the fixed frame 110.

[0082] Y400: The controller controls the swing drive assembly 200 to drive the swing frame 120 to swing in the opposite direction and reset.

[0083] Y500: The airbag 360 discharges gas, causing the pressing plate 370 to leave the paperboard.

[0084] Y600: The controller controls the lifting assembly 333 to drive the mounting frame 390 to rise to a set height.

[0085] Y700: Repeat steps Y100-Y600 until the controller receives a signal to replace cardboard of different thicknesses or a stop signal.

[0086] In this embodiment, the fragmentation signal can be manually input or set by a program. When the cardboard is placed at the set position of the cardboard placement platform 410, a corresponding fragmentation signal is generated by the corresponding sensor. When the controller receives the fragmentation signal, the lifting component 333 drives the mounting frame 390 to descend, and then fills the airbag 360 with gas to achieve compression of the cardboard. The step of the controller controlling the lifting component 333 to drive the mounting frame 390 to descend to the set height is the same as step S100, that is, including:

[0087] S110 : Control the telescopic assembly 382 to retract, so that the locking block 383 leaves the position of the second rack 340 .

[0088] S120: The second driving motor 320 rotates to lower the mounting bracket 390 to a set height.

[0089] S130 : Control the telescopic end of the telescopic assembly 382 to extend so that the locking block 383 is stuck on the second rack 340 .

[0090] Similarly, the step of the controller controlling the lifting assembly 333 to drive the mounting frame 390 to rise to the set height is the same as the step of the controller controlling the lifting assembly 333 to drive the mounting frame 390 to rise to the set height in step S600, that is, including:

[0091] S610: Control the telescopic end of the telescopic assembly 382 to retract, so that the locking block 383 leaves the position of the second rack 340 .

[0092] S620: The second driving motor 320 rotates to raise the mounting bracket 390 to a set height.

[0093] S630 : Control the telescopic end of the telescopic assembly 382 to extend so that the locking block 383 is stuck on the second rack 340 .

[0094] In this embodiment, after each sheeting, the mounting frame 390 is raised to a set height, so that when placing the cardboard, there is a large space between the pressing plate 370 and the cardboard placement platform 410, which is convenient for placing the cardboard. This embodiment is particularly suitable for processing methods that require manual placement of cardboard.

[0095] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0096] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0097] It is understandable that those skilled in the art can make equivalent substitutions or changes based on the technical solution and inventive concept of the present invention, and all these changes or substitutions should fall within the protection scope of the present invention.

Claims

1. A pressure plate structure, characterized in that: It includes a lifting component that is fixedly connected to the frame at the output end, a mounting frame is fixedly connected to the lifting component, a pressure plate is slidably connected to the mounting frame, and an airbag is installed between the pressure plate and the mounting frame; a tension spring is installed on the mounting frame, one end of the tension spring is connected to the mounting frame, and the other end is connected to the pressure plate; it also includes a guide rail fixed to the frame, and the mounting frame is slidably connected to the frame through the guide rail; the lifting component includes a second driving motor fixed to the mounting frame, a second gear transmission connected to the output end of the second driving motor, and a second rack fixed to the frame, and the second rack is meshingly connected to the second gear; it also includes a telescopic component and a mounting block fixed to the mounting frame, a slide groove is provided on the mounting block, a locking block is fixed to the protruding end of the telescopic component, the locking block is slidably connected to the slide groove, and when the protruding end of the telescopic component is in an extended state, the locking block is inserted into the second rack.

2. The pressing plate structure according to claim 1, characterized in that: There are more than two second gears, and the second gears are all rotatably connected to the mounting frame. The second drive motor is transmission-connected to one of the second gears, and the telescopic assembly is arranged between two adjacent second gears.

3. A slicing machine, characterized in that: It comprises a frame, which comprises a fixed frame and a swing frame, the lower part of the swing frame is rotatably connected to the fixed frame, a swing drive assembly is connected between the upper part of the swing frame and the upper part of the fixed frame, the middle parts of the swing frame and the fixed frame are provided with a pressure plate structure as described in any one of claims 1-2, and the fixed frame and the swing frame are provided with a cardboard placement platform under the pressure plate structure.

4. The slicing machine according to claim 3, characterized in that: The fixed frame and the swing frame are provided with a belt transmission structure below the pressing plate structure, the transmission plane of the belt transmission structure forms the paperboard placement platform, and the swing frame is fixed with a photoelectric switch for detecting the position of the paperboard.

5. A method for separating paperboard into pieces, characterized in that: The method for separating cardboard into pieces is used in the separating machine as claimed in any one of claims 3 to 4, and the method comprises the following steps: S100: The controller controls the lifting assembly to drive the mounting frame to descend to a set height; S200: The controller receives a sheet separation signal, and the airbag is inflated with gas, so that the pressing plate is pressed on the paperboard; S300: The controller controls the swing drive assembly to work, so that the swing frame swings a certain angle around the rotation connection position with the fixed frame; S400: The controller controls the swing drive assembly to drive the swing frame to swing in the opposite direction and reset; S500: the airbag discharges gas, so that the pressing plate leaves the paperboard; S600: Repeat steps S200-S500 until the controller receives a signal for replacing paperboards of different thicknesses or a shutdown signal, and the controller controls the lifting assembly to drive the mounting frame to rise to a set height.

6. The method for separating paperboard according to claim 5, characterized in that: Before step S100, the height of the mounting frame is set on the controller according to the thickness of the paperboard; The step S100 includes: S110: Control the telescopic assembly to retract so that the locking block leaves the second rack position; S120: The second driving motor rotates to lower the mounting frame to a set height; S130: Control the telescopic end of the telescopic assembly to extend so that the locking block is stuck on the second rack; In step S600, the controller controls the lifting assembly to drive the mounting frame to rise to a set height, including: S610: Control the telescopic end of the telescopic assembly to retract, so that the locking block leaves the second rack position; S620: The second driving motor rotates to raise the mounting frame to a set height; S630: Control the telescopic end of the telescopic assembly to extend so that the locking block is stuck on the second rack.

7. The method for separating paperboard according to claim 6, characterized in that: In step S200, the belt conveyor structure conveys the cardboard to the bottom of the pressing plate. After the photoelectric switch detects the cardboard, it sends a signal to the controller, which is a sheet separation signal. After step S500, the belt conveyor structure conveys the cardboard out from under the pressing plate and conveys the next pile of cardboard to the bottom of the pressing plate.

8. A method for separating paperboard into pieces, characterized in that: The method for separating cardboard into pieces is used in the separating machine as claimed in any one of claims 3 to 4, and the method comprises the following steps: Y100: The controller receives the slicing signal, and controls the lifting assembly to drive the mounting frame down to the set height; Y200: The airbag is inflated with gas, so that the pressing plate is pressed on the cardboard; Y300: The controller controls the swing drive assembly to work, so that the swing frame swings a certain angle around the rotation connection position with the fixed frame; Y400: The controller controls the swing drive assembly to drive the swing frame to swing in the opposite direction and reset; Y500: The airbag discharges gas, causing the pressing plate to leave the paperboard; Y600: The controller controls the lifting assembly to drive the mounting frame to rise to the set height; Y700: Repeat steps Y100-Y600 until the controller receives a signal to replace cardboard of different thicknesses or a stop signal.

Images