A longitudinal cutter, a box making machine and a carton processing machine

Abstract

This application provides a longitudinal cutter, a box-making machine, and a carton processing machine. The longitudinal cutter includes: a longitudinal cutter mounting base; a longitudinal crease roller and a cutter mounting arm, spaced apart at the bottom of the longitudinal cutter mounting base; wherein the longitudinal crease roller is used to crease the cardboard; a cutter drive assembly is connected to the lower part of the cutter mounting arm, and the cutter drive assembly is inclined backward and downward from the lower part of the cutter mounting arm; a longitudinal slitting blade is connected to the lower end of the cutter drive assembly, and the longitudinal slitting blade is used to longitudinally slit the cardboard; wherein the bottom surface of the cutter drive assembly is a downward inclined lower guide surface, and the lower guide surface is used to guide the moving cardboard with the curled-up end after crease along the lower guide surface to the longitudinal slitting blade. This application solves the technical problem of cardboard jamming after longitudinal crease.

Description

Technical Field

[0001] This application relates to the field of carton processing technology, specifically to a longitudinal cutting tool, a carton making machine, and a carton processing machine. Background Technology

[0002] In traditional cardboard box processing machines, the longitudinal crease structure and the longitudinal slitting structure are two independent components installed with a gap between them. After the cardboard is creased longitudinally, it causes the cardboard to curl up, making the curled-up part of the cardboard easily get stuck between the longitudinal crease structure and the longitudinal slitting structure, that is, the cardboard is prone to jamming after longitudinal crease.

[0003] The information disclosed in the background section is only intended to enhance the understanding of the background of this application, and therefore may contain information that is not part of the prior art known to those skilled in the art. Summary of the Invention

[0004] This application provides a novel longitudinal cutter, box-making machine, and carton processing machine to solve the technical problem of paper jams easily occurring after the cardboard is longitudinally crimped.

[0005] This application provides a longitudinal cutting tool for a longitudinal slitting and creasing module of a carton processing machine, including:

[0006] Longitudinal tool mount;

[0007] A longitudinal creasing roller and a cutter mounting arm are installed at intervals at the bottom of the longitudinal cutter mounting seat; wherein, the longitudinal creasing roller is used to creasing the paperboard;

[0008] A cutter drive assembly is connected to the lower part of the cutter mounting arm, and the cutter drive assembly is inclined backward and downward from the lower part of the cutter mounting arm;

[0009] A longitudinal slitting blade is connected to the lower end of the cutter drive assembly, and the longitudinal slitting blade is used to longitudinally slit the cardboard;

[0010] The bottom surface of the cutter drive assembly is a downwardly inclined lower guide surface, which guides the moving cardboard with the curled-up end after the crease along the lower guide surface to the longitudinal slitting blade.

[0011] This application also provides a carton making machine for a carton processing machine, including:

[0012] A longitudinal slitting and creasing module, wherein the longitudinal slitting and creasing module includes the aforementioned longitudinal cutter;

[0013] Longitudinal tool mounting beam;

[0014] A longitudinal cutter rack and a longitudinal cutter gear mesh with each other, wherein the longitudinal cutter gear is fixed on the outer peripheral surface of the output shaft of the longitudinal cutter motor, and the longitudinal cutter rack is fixed on the side of the longitudinal cutter mounting beam along the length direction of the longitudinal cutter mounting beam;

[0015] The longitudinal cutter motor drives the longitudinal cutter gear to rotate, and when the longitudinal cutter gear rotates, it causes the longitudinal cutter to move along the length direction of the longitudinal cutter mounting beam.

[0016] This application embodiment also provides a carton processing machine, including a paper changer and the above-mentioned carton making machine; the paper changer includes:

[0017] Paper changer frame;

[0018] A paper changer channel module is vertically slidably connected within the paper changer frame. The paper changer channel module has multiple paper changer channels installed at intervals in layers, and each paper changer channel is used to clamp a cardboard of a certain width.

[0019] The paper changer channel advance / retreat mechanism is used to move the selected paper changer channel forward after it has been moved to a preset height, so as to carry out subsequent paperboard processing steps.

[0020] The embodiments of this application, by adopting the above technical solutions, have the following technical effects:

[0021] The lower guide surface slopes downwards from front to back, meaning the feed side is higher than the paper side. This prevents the cardboard from getting stuck due to warping or other reasons, and also guides any warped ends along the lower guide surface. The longitudinal crease roller, cutter mounting arm, and longitudinal slitting blade are connected sequentially from front to back below the longitudinal cutter mounting base. As the cardboard moves from front to back, the longitudinal crease roller creases the cardboard. After crease formation, the creased end of the cardboard warps, pressing against the lower guide surface. Because the lower guide surface of the cutter drive assembly slopes downwards from front to back, the warped end is pressed down and moved under the longitudinal slitting blade for longitudinal cutting. This significantly reduces paper jams between the longitudinal crease roller and the longitudinal slitting blade. Attached Figure Description

[0022] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0023] Figure 1A This is a schematic diagram of a carton processing machine according to an embodiment of this application;

[0024] Figure 1B for Figure 1A A schematic diagram of cardboard boxes produced by a cardboard box processing machine;

[0025] Figure 1C for Figure 1A A schematic diagram of another size of carton produced by the carton processing machine;

[0026] Figure 2A This is a schematic diagram of the carton making machine shown in Figure 1, after the outer shell has been removed.

[0027] Figure 2B A side view of a carton machine with the outer casing removed;

[0028] Figure 2C This is a schematic diagram of cardboard passing through a carton machine;

[0029] Figure 2D This is a schematic diagram of the longitudinal slitting and creasing module of a box-making machine;

[0030] Figure 2E A schematic diagram of the longitudinal cutting tool for the longitudinal slitting and pressing module;

[0031] Figure 2F This is a schematic diagram of another angle of the longitudinal cutting tool;

[0032] Figure 2G This is an exploded view of the longitudinal cutting tool;

[0033] Figure 2H A schematic diagram of one mounting method for a longitudinal slitting blade;

[0034] Figure 2I This is a schematic diagram of the transverse grooving and creasing module of a box-making machine;

[0035] Figure 2J A schematic diagram of the grooving knife for a horizontal grooving creasing module;

[0036] Figure 3A Figure 1 shows a schematic diagram of the paper changer of the carton processing machine.

[0037] Figure 3B This is a schematic diagram of the paper changer channel of the paper changer.

[0038] Figure 3C A schematic diagram showing the limiting groove and movable limiting groove of the paper changer channel, and their cooperation with the paper changer channel;

[0039] Figure 4A This is a schematic diagram of the first paper feeding module of the box-making machine.

[0040] Figure 4B This is a schematic diagram of the sun gear module of the first paper feeding module;

[0041] Figure 4CThis is a schematic diagram of the sun gear module from another angle;

[0042] Figure 4D A schematic diagram showing the sun gear module without the sun gear baffle;

[0043] Figure 4E for Figure 4D A magnified view of a portion of the image.

[0044] Figure 5 This is a schematic diagram of the cardboard hopper of a carton processing machine. Detailed Implementation

[0045] To make the technical solutions and advantages of the embodiments of this application clearer, the exemplary embodiments of this application will be described in further detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not an exhaustive list of all embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other.

[0046] Example 1

[0047] The carton processing machine of this application embodiment is applicable to both continuously folded cardboard and ordinary cardboard, with the use of continuously folded cardboard being more common. For example... Figure 1A As shown, the carton processing machine includes a cardboard hopper 1, a paper changer 2, and a carton making machine 3, with the paper changer 2 and the carton making machine 3 arranged at intervals.

[0048] like Figure 3A As shown, the paper changer 2 is used to clamp paperboards 41 of various widths in the vertical layering, and also to drive the paperboards 41 to move up and down in the vertical direction. After the selected paperboard moves to a preset height, it drives the selected paperboard into the carton making machine 3. The carton making machine 3 is used to process the paperboard to form a carton. The processing includes cutting, transverse grooving, transverse creases, longitudinal creases and longitudinal slitting.

[0049] The paper changer clamps cardboard of various widths in a layered manner in the vertical direction. It moves all the cardboard up and down vertically, allowing the selected cardboard to be moved to a preset height. This allows for the selection of the most usable cardboard from various widths based on the carton's dimensions, minimizing the amount cut off and waste. The selected cardboard is then fed into the carton-making machine, where it is cut, transversely grooved, transversely creased, longitudinally creased, and longitudinally slit to form the carton.

[0050] The selected cardboard enters the carton making machine from the front. Inside the machine, the paper is fed from front to back, undergoing transverse cutting, transverse slotting and creasing, and longitudinal slitting and creasing to form a carton. The carton is then fed out. Carton size 42. (Example) Figure 1B and Figure 1C As shown, the horizontal cutting line is 425, the horizontal slot is 421, the horizontal pressing line is 422, the vertical pressing line is 424, and the vertical dividing line is 423. Figure 2A , Figure 2B , Figure 2C and Figure 2D As shown, the box making machine 3 includes a longitudinal slitting and pressing module 30 for longitudinal pressing and longitudinal cutting. The longitudinal slitting and pressing module 30 includes a longitudinal cutter 31, which is a cutter that integrates longitudinal slitting and pressing.

[0051] The structure of the longitudinal cutting tool of the longitudinal slitting and pressing module is described below.

[0052] During implementation, such as Figure 2E , Figure 2F , Figure 2G and Figure 2H As shown, the longitudinal cutter 31 includes:

[0053] Longitudinal tool mount 311-1;

[0054] The longitudinal creasing roller 312-1 and the cutter mounting arm 313-11 are installed at a distance from front to back at the bottom of the longitudinal cutter mounting seat 311-1; wherein, the longitudinal creasing roller 312-1 is used to creasing the paperboard to form longitudinal creasing 424;

[0055] A cutter drive assembly 314 is connected to the lower part of the cutter mounting arm 313-11, and the cutter drive assembly 314 is inclined backward and downward from the lower part of the cutter mounting arm 313-11.

[0056] The longitudinal slitting blade 315-11 is connected to the lower end of the cutter drive assembly 314. The longitudinal slitting blade is used to longitudinally slit the cardboard to form a longitudinal slitting line 423.

[0057] The bottom surface of the cutter drive assembly 314 is a lower guide bottom surface 314-1 that slopes downward from front to back. The lower guide bottom surface 314-1 is used to guide the moving cardboard with the curled-up end after the crease along the lower guide bottom surface 314-1 to move under the longitudinal slitting blade 315-11.

[0058] The lower guide surface 314-1 slopes downwards from front to back, meaning the paper feed side is higher than the paper side. This prevents the cardboard from getting stuck due to warping or other reasons when it arrives; it also guides any warped cardboard along the lower guide surface 314-1. The longitudinal creasing roller 312-1, cutter mounting arm 313-11, and longitudinal slitting blade 315-11 are connected sequentially from front to back below the longitudinal cutter mounting seat. During the cardboard's forward-to-back movement, the longitudinal creasing roller 312-1 crimps the cardboard, and after the cardboard is crimped, the... Figure 2C The right end of the cardboard will curl up, with the curled-up end positioned at the lower guide surface 314-1. Because the lower guide surface of the cutter drive assembly slopes downwards from front to back, the curled-up end of the cardboard is pressed down from front to back, moving under the longitudinal slitting blade 315-11 for longitudinal slitting. This significantly reduces paper jams between the longitudinal pressure rollers and the longitudinal slitting blade.

[0059] During implementation, such as Figure 2C As shown, the rotation direction of the longitudinal slitting blade 315-11 is such that the conveying direction of the lower edge of the longitudinal slitting blade is consistent with the conveying direction of the cardboard 41, so as to guide the cardboard 41 to move under the longitudinal slitting blade 315-11.

[0060] The longitudinal slitting blade can be rotated clockwise or counterclockwise to achieve longitudinal slitting of the cardboard. However, when the cardboard just comes into contact with the longitudinal slitting blade, if the conveying direction of the lower edge of the longitudinal slitting blade is consistent with the front-to-back conveying direction of the cardboard, the longitudinal slitting blade can guide the movement of the cardboard while performing its longitudinal slitting function. That is, as... Figure 2C As shown, the longitudinal slitting blade 315-11 rotates counterclockwise from this perspective, which can also prevent the cardboard 41 from getting stuck and ensure that the cardboard passes through smoothly.

[0061] Specifically, such as Figure 2C As shown, when the longitudinal slitting blade 315-11 is in the longitudinal slitting working position, the downward tilt angle of the lower guide bottom surface from front to back ranges from greater than or equal to 5 degrees to less than or equal to 25 degrees.

[0062] The longitudinal slitting blade has an initial position and a longitudinal slitting working position. When the longitudinal slitting blade is in the initial position, it is in a raised state and does not perform longitudinal slitting on the cardboard. When the longitudinal slitting blade is in the longitudinal slitting working position, it is in a pressed state and can perform longitudinal slitting on the cardboard.

[0063] During implementation, such as Figure 2B and Figure 2C As shown, the box-making machine also includes a second paper feeding module 322, and the longitudinal slitting blade 315-11 and the sun wheel 323-13 of the second paper feeding module 322 are arranged at intervals; wherein, the sun wheel of the second paper feeding module is used to feed paper to the cardboard after longitudinal slitting and pressing for paper output.

[0064] Specifically, such as Figure 2B and Figure 2CAs shown, the gap between the longitudinal slitting blade 315-11 and the sun wheel 323-13 of the second paper feeding module 322 is less than or equal to 20 cm; or the gap between the longitudinal slitting blade 315-11 and the sun wheel 323-13 of the second paper feeding module 322 is greater than or equal to 1 mm and less than or equal to 200 mm.

[0065] like Figure 2C As shown, the gap between the longitudinal slitting blade 315-11 and the sun wheel 323-13 of the second paper feeding module 322 is smaller than the gap 315-13 after the longitudinal slitting blade. When the cardboard 41 curls up slightly after passing through the longitudinal slitting blade 315-11, it is pressed down by the sun wheel 323-13 of the second paper feeding module 322, making it unable to continue to curl up. This reduces the probability of paper jam between the longitudinal slitting blade and the sun wheel of the second paper feeding module.

[0066] During implementation, such as Figure 2E and Figure 2G As shown, the longitudinal cutter further includes:

[0067] The longitudinal pressing wheel cylinder 312-2 is fixed to the bottom of the longitudinal cutter mounting seat 311-1;

[0068] The pressing cylinder connecting plate 312-3 is fixed to the end of the piston rod of the longitudinal pressing wheel cylinder 312-2;

[0069] The pressure roller mounting base 312-41 is fixed to the bottom of the pressure cylinder connecting plate 312-3, and the longitudinal pressure roller 312-1 is rotatably connected to the pressure roller mounting base 312-41.

[0070] The creasing cylinder connecting plate and the creasing wheel mounting base are fixed as one unit. The longitudinal creasing wheel 312-1 is rotatably connected to the creasing wheel mounting base 312-41, and the creasing cylinder connecting plate is fixed to the end of the piston rod of the longitudinal creasing wheel cylinder 312-2. In this way, the piston rod of the longitudinal creasing wheel cylinder 312-2 can extend downwards and return to its original position relative to the longitudinal cutter mounting base. When the longitudinal creasing wheel needs to creasing the paperboard longitudinally, it extends downwards to creasing the paperboard. When longitudinal creasing is not needed, the longitudinal creasing wheel returns to its original position. Thus, with a simple structure, the downward extension and return of the longitudinal creasing wheel are achieved.

[0071] During implementation, such as Figure 2GAs shown, the cutter drive assembly includes a cutter mounting shaft 314-33, and a longitudinal cutter drive gear 314-21, a longitudinal cutter transition gear 314-22, and a longitudinal cutter driven gear 314-23 that mesh sequentially; the longitudinal cutter drive gear 314-21 is connected to the lower part of the cutter mounting arm 313-11, and the cutter mounting shaft 314-33 and the longitudinal cutter driven gear 314-23 are fixed;

[0072] The longitudinal slitting blade 315-11 is detachably connected to the blade mounting shaft 314-33.

[0073] The transmission structure consists of three meshing gears: longitudinal cutter drive gear 314-21, longitudinal cutter transition gear 314-22, and longitudinal cutter driven gear 314-23. The longitudinal cutter drive gear is the power input gear, and the longitudinal cutter driven gear is the power output gear. The longitudinal slitter rotates under the drive of the driven gear and the cutter mounting shaft, which in turn drives the rotation of the cutter mounting shaft and the longitudinal slitter 315-11. This three-gear meshing transmission structure is compact and has good synchronization, allowing the longitudinal slitter to rotate autonomously. The autonomously rotating longitudinal slitter rotates at a high speed, with the linear velocity of the blade being much greater than the speed at which the cardboard moves forward. Below the longitudinal slitter are mating longitudinal slitter combs, through which the cardboard passes. These combs have evenly distributed teeth, with rounded upper edges, and are made of a flexible material. When cardboard needs to be cut longitudinally, the longitudinal slitting blade falls and its edge enters the teeth of the longitudinal slitting comb, completely cutting through the cardboard. The teeth of the longitudinal slitting comb provide good support for the cardboard, preventing it from deforming when subjected to cutting force.

[0074] During implementation, such as Figure 2E and Figure 2G As shown, the cutter transmission assembly also includes a cutter gearbox 314-41 and a cutter gearbox cover 314-42, which together form a cutter gear mounting box.

[0075] The longitudinal cutter drive gear 314-21, the longitudinal cutter transition gear 314-22, and the longitudinal cutter driven gear 314-23 are inclined from front to back and downward from the lower part of the cutter mounting arm 313-11 inside the gear mounting box;

[0076] The bottom surface of the cutter gearbox cover is a downward-sloping guide bottom surface 314-1.

[0077] Thus, the longitudinal cutter drive gear 314-21, the longitudinal cutter transition gear 314-22, and the longitudinal cutter driven gear 314-23 are arranged inside the gear mounting box.

[0078] The three gears are housed inside the gear mounting box, which isolates any debris that may be generated during the processing of the cardboard from the gear mounting box, reducing the impact on the gears; at the same time, it also allows for effective lubrication of the gears.

[0079] In practice, the outer shell has three through holes and each through hole is fixed with a cutter gearbox ball bearing, and the cutter gearbox cover has through holes and each through hole is fixed with a cutter gearbox cover ball bearing.

[0080] like Figure 2G As shown, the cutter drive assembly further includes:

[0081] The transmission gear positioning shaft 314-31 is fixed to the shaft hole of the longitudinal cutter transmission gear 314-21;

[0082] The transition gear mounting shaft 314-32 is fixed to the shaft hole of the longitudinal cutter transition gear 314-22;

[0083] The transmission gear positioning shaft 314-31, the transition gear mounting shaft 314-32, and the cutter mounting shaft 314-33 are respectively fixed to the inner rings of the cutter gearbox ball bearing and the cutter gearbox cover ball bearing.

[0084] The transmission gear positioning shaft 314-31 and the longitudinal cutter transmission gear 314-21 are fixed as one unit. The transmission gear positioning shaft 314-31 is connected to the cutter gearbox housing and the cutter gearbox cover ball bearings, enabling the transmission gear positioning shaft 314-31 and the longitudinal cutter transmission gear 314-21 to rotate within the gear mounting box. Similarly, the longitudinal cutter transition gear 314-22 and the longitudinal cutter driven gear 314-23 can rotate within the gear mounting box.

[0085] The cutter gear mounting box formed by the cutter gearbox 314-41 and the cutter gearbox cover 314-42, and the cutter mounting arm 313-11 are mounted by bearings and the transmission gear positioning shaft 314-31. That is, the cutter transmission assembly can rotate around the transmission gear positioning shaft 314-31 as a whole.

[0086] During implementation, such as Figure 2A , Figure 2D , Figure 2E and Figure 2G As shown, the longitudinal slitting and pressing module further includes:

[0087] The longitudinal tool drive shaft 316-11 is fixedly connected to the through hole reserved in the center of the drive gear positioning shaft 314-31;

[0088] The externally meshing longitudinal tool driven gear 316-12 and longitudinal tool driving gear 316-13 rotate in opposite directions.

[0089] The longitudinal cutter driven gear 316-12 is fixed to the end of the longitudinal cutter drive shaft 316-11, and the longitudinal cutter driving gear 316-13 and the second paper feeding drive gear are connected by a second drive timing belt mechanism.

[0090] The box-making machine has a second paper feeding motor located below the cardboard position, and the output shaft of the second paper feeding motor is connected to the second drive synchronous belt mechanism.

[0091] The longitudinal cutter driven gear 316-12, the longitudinal cutter drive shaft 316-11, and the longitudinal cutter drive gear 314-21 rotate in the same direction; the longitudinal cutter drive gear 314-21 and the longitudinal cutter driven gear 314-23 rotate in the same direction. The longitudinal cutter driven gear 314-23 and the longitudinal cutter drive gear 316-13 rotate in opposite directions, that is, the longitudinal cutter driven gear 314-23 and the output shaft of the second paper feed motor rotate in opposite directions. The longitudinal cutter driven gear 314-23 rotates above the paperboard, and the second paper feed motor rotates below the paperboard to feed paper. This achieves the opposite rotation directions of the longitudinal cutter driven gear 314-23 and the second paper feed motor, but the conveying direction of the lower edge of the longitudinal slitting blade is consistent with the conveying direction of the second paper feed motor to the paperboard.

[0092] Specifically, the longitudinal cutter drive shaft 316-11 is designed as a hexagonal shaft, and the through hole pre-reserved in the center of the transmission gear positioning shaft 314-31 is also a hexagonal hole, thus ensuring a fixed connection between the longitudinal cutter drive shaft 316-11 and the through hole pre-reserved in the center of the transmission gear positioning shaft 314-31. Therefore, power is transmitted from the second paper feeding motor to the longitudinal cutter drive shaft 316-11, and then to the longitudinal slitting blade 315-11, thereby powering the longitudinal slitting blade 315-11.

[0093] During implementation, such as Figure 2F , Figure 2G and Figure 2H As shown, the cutter mounting shaft 314-33 of the cutter transmission assembly passes through the housing composed of the cutter gearbox and the cutter gearbox cover, and extends symmetrically to both sides of the housing composed of the cutter gearbox and the cutter gearbox cover;

[0094] The longitudinal slitting blade 315-11 can be detachably mounted at both ends of the blade mounting shaft 314-33.

[0095] In this way, the longitudinal slitting blade 315-11 can be installed individually at either end of the blade mounting shaft 314-33, or two longitudinal slitting blades 315-11 can be installed at opposite ends of the blade mounting shaft 314-33. This allows for multiple installation possibilities for the longitudinal slitting blade 315-11, making it suitable for a wider range of scenarios.

[0096] During implementation, such as Figure 2F , Figure 2G and Figure 2H As shown, the cutter drive assembly is a symmetrical structure with the centerline of the cutter mounting shaft 314-33 as the axis of symmetry; the longitudinal cutter also includes a pressure wheel mounting shaft 312-42, which passes through the pressure wheel mounting seat and extends symmetrically, and the longitudinal pressure wheel 312-1 can be detachably mounted on any end and / or both ends of the pressure wheel mounting shaft 312-42;

[0097] There are at least two longitudinal cutters, each of which is coaxially mounted on the longitudinal cutter drive shaft. The longitudinal slitting blades of two adjacent longitudinal cutters can be mounted on opposite sides so that the two longitudinal slitting blades are arranged adjacent to each other. The longitudinal pressing wheels of two adjacent longitudinal cutters can be mounted on opposite sides so that the two longitudinal pressing wheels are arranged adjacent to each other.

[0098] The longitudinal cutter structure is symmetrical, and longitudinal creasing rollers and longitudinal slitting blades can be installed on both sides, allowing for selective installation based on processing requirements. This design enables the equipment to process ultra-thin cartons; that is, when the longitudinal creasing rollers and longitudinal slitting blades are installed in opposite directions, the longitudinal creasing rollers of two adjacent longitudinal cutters can be placed together, and the longitudinal slitting blades of two adjacent longitudinal cutters can be placed together.

[0099] When there are multiple longitudinal cutters, the longitudinal slitting blades of each longitudinal cutter can be installed on the same side of the cutter drive assembly. In this case, the minimum distance between the longitudinal slitting blades is the thickness of the cutter drive assembly. Alternatively, the longitudinal slitting blades of two adjacent longitudinal cutters can be installed on opposite sides, making the two longitudinal slitting blades adjacent to each other. In this case, the distance between the two longitudinal slitting blades exceeds the thickness of the cutting drive assembly. Therefore, the way in which the longitudinal slitting blades 315-11 can be detachably installed at both ends of the cutter mounting shafts 314-33 allows for more possibilities in the spacing between the longitudinal cuts of the carton processing machine, making the carton processing machine more versatile.

[0100] like Figure 1B and Figure 1CAs shown, there are transverse cutting lines 425, transverse slots 421, transverse creases 422, longitudinal creases 424, and longitudinal slit lines 423. The thickness of the carton is determined by the distance between two longitudinal slit lines 423, which in turn is determined by the distance between the longitudinal slit blades 315-11 of two adjacent longitudinal cutters. The arrangement of the longitudinal slit blades 315-11 of two adjacent longitudinal cutters allows for the processing of both thick and thin cartons. The minimum carton thickness is the distance between the longitudinal slit blades of two adjacent and tightly fitted longitudinal cutters.

[0101] During implementation, such as Figure 2F As shown, the longitudinal cutter further includes:

[0102] The longitudinal pressing wheel 312-1 has a pre-drilled through hole and the pressing wheel ball bearing is fixed inside the through hole. The pressing wheel mounting shaft 312-42 is detachably fixed to the inner ring of the pressing wheel ball bearing, so that the longitudinal pressing wheel 312-1 can rotate around the pressing wheel mounting shaft 312-42.

[0103] In practice, the longitudinal pressing wheel and the longitudinal slitting blade, which are installed on the same side of the longitudinal cutter, are located in the same straight line.

[0104] In this way, the cardboard is first longitudinally crimped by the longitudinal crimping roller, and then longitudinally cut at the crimping position.

[0105] During implementation, such as Figure 2E , Figure 2F and Figure 2G As shown, the longitudinal cutter further includes:

[0106] The longitudinal slitting blade cylinder 315-12, the cutter mounting arm 313-11 and the longitudinal slitting blade cylinder 315-12 are fixed at a distance from each other at the bottom of the longitudinal cutter mounting seat 311-1. The piston rod of the longitudinal slitting blade cylinder 315-12 is fixed to the cutter transmission assembly 314 to drive the longitudinal slitting blade 315-11 to move downward and return upward.

[0107] The longitudinal cutter mounting base 311-1 is located between the cutter mounting arm 313-11 and the longitudinal slitting cylinder 315-12 and has a through-hole 311-21. The air inlet and outlet pipes of the longitudinal slitting cylinder 315-12 pass through the through-hole 311-21.

[0108] Since the cutter drive assembly, as a whole, can rotate around the transmission gear positioning shaft 314-31, the longitudinal slitting blade cylinder 315-12 controls the rotation of the cutter drive assembly, thereby controlling the raising and lowering of the longitudinal slitting blade and completing the longitudinal cutting action of the cardboard.

[0109] The longitudinal tool mounting base 311-1 has a longitudinal tool mounting base through-hole 311-21, which allows the air inlet and outlet pipes of the longitudinal slitting blade cylinder 315-12 to easily pass through the longitudinal tool mounting base through-hole 311-21 and connect to an external air source. This fully utilizes the space of the longitudinal tool mounting base 311-1, making the overall wiring of the longitudinal tool's air inlet and outlet pipes relatively simple.

[0110] During implementation, such as Figure 2E , Figure 2F and Figure 2G As shown, the longitudinal pressing wheel cylinder 312-2 is fixed at the bottom of the longitudinal cutter mounting base 311-1 and located in front of the cutter mounting arm 313-11;

[0111] The cutter mounting arm 313-11 has a cutter mounting arm wire passage hole 313-12 that runs through the front and rear. The air inlet pipe and air outlet pipe of the longitudinal pressure wheel cylinder 312-2 pass through the cutter mounting arm wire passage hole 313-12 and the longitudinal cutter mounting seat wire passage hole 311-21 in sequence.

[0112] The air inlet and outlet pipes of the longitudinal pressing wheel cylinder 312-2 pass through the wire passage hole 313-12 of the cutter mounting arm and the wire passage hole 311-21 of the longitudinal cutter mounting seat to connect with an external air source. The air inlet and outlet pipes of the longitudinal pressing wheel cylinder 312-2 and the longitudinal slitting blade cylinder 315-12 share the wire passage hole 311-21 of the longitudinal cutter mounting seat, which makes the overall wiring of the air inlet and outlet pipes relatively simple.

[0113] The longitudinal creasing roller is controlled to move up and down by the longitudinal creasing roller cylinder 312-2. When longitudinal creasing of the paperboard is required, the longitudinal creasing roller cylinder controls the longitudinal creasing roller to fall and press down on the paperboard. The longitudinal creasing roller cooperates with the longitudinal creasing roller directly below to complete the longitudinal creasing on the paperboard.

[0114] During implementation, such as Figure 2E , Figure 2F and Figure 2G As shown, the longitudinal cutter further includes:

[0115] A longitudinal tool motor mounting component is fixed to the top of the longitudinal tool mounting base 311-1. The longitudinal tool motor mounting component has a vertically penetrating longitudinal tool motor mounting component wire passage space, and the longitudinal tool motor mounting component wire passage space and the longitudinal tool mounting base wire passage hole 313-12 are arranged vertically.

[0116] The air inlet and outlet pipes of the longitudinal pressure wheel cylinder and the longitudinal slitting blade cylinder, which pass through the wire passage hole of the longitudinal tool mounting base, pass through the wire passage space of the longitudinal tool motor mounting component from bottom to top.

[0117] In this way, the longitudinal tool motor mounting component not only enables the installation of the longitudinal tool motor, but also allows the air inlet and outlet pipes to pass through.

[0118] During implementation, such as Figure 2E , Figure 2F and Figure 2G As shown, the longitudinal tool motor mounting component includes:

[0119] Two flange support plates 317-11 are fixed in parallel to the top of the longitudinal tool mounting seat 311-1;

[0120] Motor flange seat 317-12, the motor flange seat has a motor flange seat shaft hole and a motor flange seat wire passage hole 317-13 arranged front and rear, the space between the two flange support plates 317-11 and the motor flange seat wire passage hole 317-13 are connected to form a longitudinal tool motor mounting component wire passage space;

[0121] The longitudinal cutter also includes a longitudinal cutter motor 317-2, which is fixed on the motor flange seat 317-12, and the output shaft of the longitudinal cutter motor 317-2 extends downward from the shaft hole of the motor flange seat.

[0122] The longitudinal tool motor mounting component, consisting of two flange support plates 317-11 and a motor flange seat 317-12, has a simple structure and not only enables the installation of the longitudinal tool motor but also allows the air inlet and outlet pipes to pass through.

[0123] Several wire-passing holes are designed inside the longitudinal cutter: wire-passing holes 311-21 for the longitudinal cutter mounting base, 313-12 for the cutter mounting arm, and 317-13 for the motor flange seat. These holes are used to pass through the air pipes and motor wires of the longitudinal cutter. This design helps maintain the volume of the longitudinal cutter, and the spacing between adjacent longitudinal cutters is not affected by the air pipe routing. Moreover, this design makes the wiring neat and facilitates the fixing of air pipes and motor wires.

[0124] The following describes the other structural features of the longitudinal slitting and pressing module.

[0125] During implementation, such as Figure 2D and Figure 2E As shown, the longitudinal slitting and pressing module also includes:

[0126] Longitudinal tool mounting beam 318-11, wherein the longitudinal tool mounting beam 318-11 is fixed to the inner side of the box making machine frame 32;

[0127] The longitudinal cutter rack 318-12 and the longitudinal cutter gear 318-13 are meshed together. The longitudinal cutter gear 318-13 is fixed to the outer circumferential surface of the output shaft of the longitudinal cutter motor. The longitudinal cutter rack 318-12 is fixed to the side of the longitudinal cutter mounting beam 318-11 along the length direction of the longitudinal cutter mounting beam 318-11.

[0128] The longitudinal cutter motor 317-2 drives the longitudinal cutter gear 318-13 to rotate, and the rotation of the longitudinal cutter gear 318-13 drives the longitudinal cutter to move along the length direction of the longitudinal cutter mounting beam 318-11.

[0129] The longitudinal cutter gear is a helical gear.

[0130] The longitudinal cutter motor, longitudinal cutter gear, longitudinal cutter rack, and longitudinal cutter mounting beam work together to enable the longitudinal cutter motor to drive the longitudinal cutter to move along the length of the longitudinal cutter mounting beam. In this way, the longitudinal cutter can move along the length of the longitudinal cutter mounting beam, the longitudinal creasing wheel of the longitudinal cutter can move up and down to creasing the paperboard longitudinally, and the longitudinal slitting blade of the longitudinal cutter can move up and down to longitudinally slit a portion of the creasing position.

[0131] During implementation, such as Figure 2E and Figure 2G As shown, the longitudinal slitting and pressing module also includes:

[0132] The longitudinal cutter slider 318-21 and the longitudinal cutter slide rail are in sliding engagement. The longitudinal cutter slider 318-21 is fixed at the top of the longitudinal cutter mounting base 311-1 and located above the longitudinal pressing wheel cylinder 312-2. The longitudinal cutter slide rail is fixed at the bottom of the longitudinal cutter mounting beam 318-11 along the length direction of the longitudinal cutter mounting beam 318-11. That is, the longitudinal cutter is slidably connected to the longitudinal cutter mounting beam 318-11 through the longitudinal cutter slide rail and the longitudinal cutter slider 318-21.

[0133] During the movement of the longitudinal cutter along the length of the longitudinal cutter mounting beam, driven by the longitudinal cutter motor, the longitudinal cutter slider and the longitudinal cutter slide rail slide together to guide the direction of movement. The combined action of the longitudinal cutter rack and gear, along with the longitudinal cutter slider and the longitudinal cutter slide rail, ensures that the longitudinal cutter experiences balanced forces and moves smoothly along the length of the longitudinal cutter mounting beam.

[0134] Specifically, a longitudinal tool slider positioning plate is fixed between the two longitudinal tool sliders to position the longitudinal tool sliders and keep the relative distance between the two longitudinal tool sliders consistent, so that each longitudinal tool can move smoothly on the longitudinal tool slide rail.

[0135] The other structures of the box-making machine are described below.

[0136] During implementation, such as Figure 2A , Figure 2B and Figure 2C As shown, the box-making machine further includes:

[0137] The box-making machine frame 32 has a paper feeding side at the front and a paper output side at the rear.

[0138] A first paper feeding module 321 is located on the paper inlet side;

[0139] A second paper feeding module 322 and a second transverse cutting module 332 are arranged at the front and rear of the paper output side. The second transverse cutting module 332 can move up and down and can move in the transverse direction to perform transverse cutting. The transverse direction is perpendicular to the front-back direction and the vertical direction.

[0140] The carton processing machine also includes a control unit, which processes the cardboard between the first paper feeding module and the second paper feeding module:

[0141] When the preset length of the processed carton is less than or equal to the distance between the first paper feeding module 321 and the second paper feeding module 322, and when the actual length of the processed carton after passing through the second transverse cutting module 332 has reached the preset length of the processed carton, the first paper feeding module 321 and the second paper feeding module 322 are controlled to stop feeding paper, and the second transverse cutting module 332 is controlled to move downward and perform transverse cutting on the cardboard in the transverse direction to form a transverse cutting line 425.

[0142] When the preset length of the processed carton is less than or equal to the distance between the first paper feeding module 321 and the second paper feeding module 322, the front end of the cardboard is first conveyed by the first paper feeding module 321. When the actual length of the cardboard after passing through the second transverse cutting module 332 has reached the preset length of the processed carton and has reached the second paper feeding module 322, the first and second paper feeding modules 321 and 322 stop feeding paper, and the second transverse cutting module 332 moves downwards to perform transverse cutting on the cardboard. At this time, the length of the cut cardboard is the preset length of the processed carton. That is, when the preset length of the processed carton is less than or equal to the distance between the first and second paper feeding modules 321 and 322, the second transverse cutting module 332 is controlled to perform transverse cutting at an appropriate time. After transverse cutting, the cut cardboard is continued to be conveyed by the second paper feeding module 332 for paper output, and the first paper feeding module 321 no longer contacts it.

[0143] During implementation, such as Figure 2A , Figure 2B and Figure 2C As shown, the box-making machine further includes:

[0144] The first horizontal cutting module 331 is arranged in front of and behind the first paper feeding module 321 on the paper feeding side. The first horizontal cutting module 331 can move up and down and can move in the horizontal direction to perform horizontal cutting.

[0145] The control unit is further configured to: when the preset length of the processed carton is greater than the distance between the first paper feeding module 321 and the second paper feeding module 322, and when the actual length of the processed carton after passing through the first transverse cutting module 331 has reached the preset length of the processed carton and the processed carton has reached the second paper feeding module 322, control the first paper feeding module 321 and the second paper feeding module 322 to stop feeding paper, and control the first transverse cutting module 331 to move downward and move in the transverse direction to perform transverse cutting of the cardboard.

[0146] When the preset length of the processed carton is greater than or equal to the distance between the first paper feeding module 321 and the second paper feeding module 322, the front end of the cardboard is first conveyed by the first paper feeding module 321. After the actual length passed by the first transverse cutting module 331 reaches the preset length of the processed cardboard and the cardboard reaches the second paper feeding module 322, the first and second paper feeding modules 321 and 322 stop feeding paper, and the first transverse cutting module 331 moves downwards to perform transverse cutting on the cardboard. At this time, the length of the cut cardboard is the preset length of the processed cardboard. In other words, when the preset length of the processed carton is greater than or equal to the distance between the first and second paper feeding modules 321 and 322, the first transverse cutting module 331 performs transverse cutting at an appropriate time. After transverse cutting, the cut cardboard is continued to be conveyed by the second paper feeding module 332 for paper output, and the first paper feeding module 321 no longer contacts it.

[0147] During implementation, such as Figure 2B and Figure 2I As shown, the box-making machine further includes:

[0148] A transverse grooving and creasing module 34 is disposed between the first transverse cutting module 331 and the second paper feeding module 322; the transverse grooving and creasing module 34 has two grooving blades 341 spaced apart in the transverse direction, the two grooving blades 341 can move up and down and can move towards and away from each other in the transverse direction, and the two grooving blades 341 maintain a distance when they move towards each other at their closest distance;

[0149] The control unit is also used to: when the preset depth D of the transverse grooving is less than or equal to the length of the grooving knife 341, control the two grooving knives 341 to move towards each other or away from each other, and then move downward to perform transverse grooving in the width direction of the cardboard, forming a transverse grooving 421.

[0150] Two slotting blades can move towards and away from each other in the transverse direction, adapting to various cardboard widths. When the cardboard width is small, the two slotting blades can move towards each other, ensuring that their outer edges align with the cardboard's width-direction edge. When the cardboard width is also small, the two slotting blades can move away from each other, again ensuring that their outer edges align with the cardboard's width-direction edge. This allows for the processing of cartons using cardboard of different widths.

[0151] When the carton needs to be slotted to a preset depth D greater than the length of the slotting blade 341, the control unit, in conjunction with the first and second horizontal cutting modules, completes the processing. The control unit is also used to: when the preset depth D of the horizontal slotting is greater than the length of the slotting blade, control the first and second horizontal cutting modules to cut at the horizontal slotting position with a cutting length equal to the preset depth D of the slotting.

[0152] Specifically, such as Figure 2B and Figure 2J As shown, the grooving knife 341 has a large outer end and a small inner end. The box-making machine also includes two lower grooving knives located below the cardboard, with a gap between the two lower grooving knives. When the grooving knife performs grooving, the grooving knife 341 moves downward, forming a shearing engagement between the grooving knife and the two lower grooving knives to groov the cardboard.

[0153] In this way, the transverse grooving of the cardboard is a line-cutting action, resulting in low grooving resistance.

[0154] Specifically, such as Figure 2J As shown, the grooving knife 341 has a certain thickness, and there are two grooving blades 341-1. There is a groove between the two grooving blades 341-1. When grooving, a long strip of paper scrap will be cut off from the cardboard, forming a gap with a certain width on the cardboard (showing the grooving of the cardboard box), which facilitates the shaping of the cardboard box.

[0155] Specifically, such as Figure 2J As shown, the outer end of the grooving knife has a grooving knife guide angle 341-2, which guides the grooving knife to fall smoothly into the gap between the two lower grooving knives; the inner end of the grooving knife has a grooving knife cutting edge 341-3, which cuts off the long strips of paper scraps on the cardboard and removes them from the cardboard.

[0156] When the grooving cutter is making a grooving, it moves downwards, and the outer end of the grooving cutter is grooved first.

[0157] Specific examples Figure 2B As shown, the transverse grooving and pressing module also has a long strip-shaped pressing knife 342, and the pressing knife 342 and the grooving knife are arranged vertically.

[0158] The creasing knife 342 and the grooving knife are integrated and can move up and down. When the creasing knife moves down to creasing the cardboard to form a transverse creasing 422, the grooving knife moves down and moves in opposite directions to groove the cardboard.

[0159] The cardboard comes from the first paper feeding module and passes between the slotting knife 341 and the two lower slotting knives. The transverse slotting and creasing module completes the transverse slotting and creasing of the carton. In this way, a single downward movement of the transverse slotting and creasing module can achieve both transverse creasing and creasing, resulting in high efficiency. In existing technology, transverse slotting and creasing require two separate components to press down once each.

[0160] The structure of the paper changer is described below.

[0161] During implementation, such as Figure 3A As shown, the paper changer includes:

[0162] Paper changer frame 21;

[0163] The paper changer channel module is vertically slidably connected within the paper changer frame 21. The paper changer channel module has multiple paper changer channels 221 installed in layers at intervals, and each paper changer channel 221 is used to clamp a cardboard of a certain width.

[0164] The paper changer channel advance / retreat mechanism is used to move the selected paper changer channel 221 backward after it has been moved to a preset height, so as to carry out subsequent paperboard processing steps; it is also used to reset the selected paper changer channel 221 forward after the paperboard processing is completed.

[0165] Each paper changer channel clamps a cardboard of one width, thus enabling the paper changer channel module to clamp multiple widths of cardboard in a layered manner in the vertical direction. The paper changer channel module is vertically slidably connected within the paper changer frame, allowing the module as a whole to move vertically up and down, thereby moving all cardboard vertically and ultimately moving the selected cardboard to a preset height. The paper changer channel advance / retreat mechanism moves the selected paper changer channel backward after it has reached the preset height, thus guiding the selected cardboard into the case making machine for processing; it also allows the remaining selected cardboard to exit the case making machine after processing. The existence of the paper changer ensures that the selected cardboard enters the case making machine for processing, and the remaining selected cardboard is removed, all through the paper changer and corresponding controls, making the process faster, more convenient, and highly automated.

[0166] During implementation, such as Figure 3A and Figure 3B As shown, the paper changer channel 221 of each layer is centered in the horizontal direction;

[0167] The lateral direction refers to the width direction of the cardboard held by the paper changer channel 221.

[0168] The paper changer channel is centered in the horizontal direction, which facilitates the subsequent processing of cardboard by the box-making machine.

[0169] During implementation, such as Figure 3B As shown, each of the paper changer channels 221 includes:

[0170] The channel clamp mounting beam 221-1 has protruding channel limiting shafts 221-11 at both ends;

[0171] Two cardboard channel clips 221-2 are symmetrically fixed to the cardboard channel clip mounting beam 221-1 on the left and right sides;

[0172] The clamping cylinder 221-3 corresponds one-to-one with the cardboard channel clamp 221-2 and is fixed on the corresponding cardboard channel clamp 221-3 to clamp the cardboard on the cardboard channel clamp 221-2.

[0173] During implementation, such as Figure 3A and Figure 3B As shown, the paper changer channel module includes:

[0174] The paper changer channel 221;

[0175] Two paper changer channel module side plates 222, each paper changer channel module side plate 222 has multiple paper changer channel slides 223 arranged at intervals and passing through the paper changer channel module side plate, and channel limiting shafts 221-11 pass through the paper changer channel slides 223 and protrude from the paper changer channel module side plate 222.

[0176] The channel limiting shaft 221-11 can move back and forth along the paper changer channel slide 223.

[0177] The channel limiting shaft moves back and forth along the paper changer channel slide 223, enabling the paper changer channel to move back and forth. The paper changer channel slide 223 serves as a guide and limiter.

[0178] Specifically, the length of the paper changer channel slide 223 is in the front-to-back direction.

[0179] The channel limiting shaft and the paper changer channel slide work together to enable each layer of the paper changer channel to move back and forth, resulting in a simple structure.

[0180] During implementation, such as Figure 3C As shown, the paper changer also includes a paper changer channel advance / retreat mechanism, which includes:

[0181] Two paper changer channel limiting grooves 231, the guiding direction of the paper changer channel limiting grooves 231 is vertical; wherein, the paper changer channel limiting grooves 231 are fixed on the inner side of the paper changer frame; that is, the function of the paper changer frame includes installing the paper changer channel advance and retreat mechanism;

[0182] The paper changer advance / reverse cylinder 234 is fixed at the paper changer frame;

[0183] A movable limiting groove 232 is fixed on the cylinder body of the paper changer's forward and backward cylinder. The guide direction of the movable limiting groove 232 is vertical, and the movable limiting groove 232 is arranged between two sections of the paper changer channel limiting groove 231 so that the two sections of the paper changer channel limiting groove 231 and the paper changer channel limiting groove 231 are connected to form an up and down movement channel. The channel limiting shaft 221-11 can move along the up and down movement channel.

[0184] The paper changer advance / retreat cylinder is a rodless cylinder, and the cylinder body of the paper changer advance / retreat cylinder can reciprocate in the front-back direction on the cylinder shaft.

[0185] When the channel limiting shaft 221-11 is located within the paper changer channel limiting groove 231, the position of the paper changer channel is locked and cannot move back and forth. In other words, the forward and backward position of the paper changer channel is maintained.

[0186] Regardless of which layer of the paper changer channel has its channel limiting shaft 221-11 located within the movable limiting groove 232, the paper changer channel of that layer already has the ability to move back and forth. As long as the movable limiting groove 232 starts to move back and forth, it can drive the paper changer channel of that layer to move back and forth.

[0187] When a paper changer channel needs to be fed into the carton making machine, the paper changer channel lifting mechanism moves the channel limiting shaft of the selected paper changer channel into the movable limiting groove. The cylinder of the paper changer advance and retreat cylinder moves backward, driving the movable limiting groove and the selected paper changer channel to move backward, and the cardboard of the selected paper changer channel is sent into the carton machine.

[0188] During implementation, such as Figure 3A and Figure 3C As shown, the paper changer also includes a paper changer channel lifting mechanism, which includes:

[0189] The paper changer channel lifting slide rail 241 and the paper changer channel lifting slider 242 are vertically slidably fitted. The paper changer channel lifting slide rail 241 is located on the inner side of the paper changer frame 21, and the paper changer channel lifting slider 242 is fixed on the outer side of the paper changer channel module side plate 222. Another function of the paper changer frame is to install the paper changer channel lifting mechanism.

[0190] The paper changer channel lifting slide rail and the paper changer channel lifting slider work together to enable the paper changer channel module as a whole to lift. Specifically, the lifting of the paper changer channel module is achieved through the paper changer channel module lifting motor.

[0191] In this way, the paper changer frame is used to fix the paper changer channel lifting mechanism and the paper changer channel forward and backward mechanism.

[0192] During implementation, such as Figure 3A and Figure 3C As shown, the paper changer channel lifting mechanism also includes:

[0193] Channel entry detection sensor 251 and channel exit detection sensor 252;

[0194] A rodless cylinder mounting base is provided with a channel entry detection sensor 251 at the front end and a channel exit detection sensor 252 at the rear end to detect the slide of the paper changer's in-and-out cylinder.

[0195] The control unit is also used to determine whether the paper changer channel has reached the preset position by detecting whether the slide has reached the preset position:

[0196] If the channel entry detection sensor 251 detects the slide of the paper changer advance / retreat cylinder, it is determined that the paper changer channel has reached the preset position.

[0197] After the cardboard box processing is completed, the paper changer channel retracts. After the channel exit detection sensor 252 detects the slide of the paper changer advance and retreat cylinder, it is determined that the paper changer channel has returned to the initial position and can perform the paper changer channel lifting and lowering action.

[0198] Thus, when the paper changer channel reaches the preset position, the control unit determines that the paperboard has been correctly fed, and the next step of the procedure can begin. When the paper changer channel returns to the initial position, the control unit determines that the paper changer channel has reset and can move up and down.

[0199] The channel entry and exit detection sensors, along with the control unit, work together to determine whether paper feeding has started and whether the paper changer channel has reset and can be raised or lowered after paper feeding is completed. This system is highly automated and reduces the workload of staff.

[0200] Specifically, such as Figure 3A As shown, the bottom of the paper changer is equipped with casters 261 for movement.

[0201] Casters allow for easy movement of the paper changer during installation and maintenance of the carton processing machine.

[0202] Specifically, the paper changer channel lifting mechanism also includes a paper changer channel lifting motor 243-1, a paper changer transmission synchronous pulley 243-2, a paper changer transmission synchronous belt 243-3, a paper changer transmission shaft 243-4, and a paper changer lifting synchronous belt 243-5. The paper changer channel lifting motor 243-1 drives the paper changer transmission synchronous pulley 243-2 and the paper changer transmission synchronous belt 243-3 to rotate, and the rotation is transmitted to the paper changer lifting synchronous belt 243-5 through the paper changer transmission shaft 243-4. The paper changer lifting synchronous belt 243-5 drives the paper changer channel lifting slider 242 to rise and fall, thereby realizing the overall lifting of the paper changer channel module.

[0203] In practice, the first paper feeding module 321 and the second paper feeding module 322 have the same structure, such as... Figure 4A As shown, the first paper feeding module and the second paper feeding module each include:

[0204] Multiple sun gear modules 323-1;

[0205] The paper feed roller 323-2, the sun gear module 323-1 and the paper feed roller 323-2 are arranged vertically at intervals, and the interval between the sun gear module 323-1 and the paper feed roller 323-2 is used for the passage of paperboard; each of the sun gear modules 323-1 can move up and down to move away from and press the paperboard located on the paper feed roller 323-2.

[0206] The paper feeding timing belt 323-3 and the paper feeding motor 323-4 are synchronously connected to the output shaft of the paper feeding motor 324-4 and the paper feeding roller 323-2.

[0207] The control unit is also used to select the number and position of the sun gear modules that move downwards based on the width of the selected cardboard.

[0208] The cardboard processing machine offers a variety of cardboard widths to choose from. Correspondingly, when the selected cardboard width is at its maximum, all sun gear modules of the first feeding module are selected, and all sun gear modules move downwards to press against the cardboard. When the selected cardboard width is smaller, only some sun gear modules in the first feeding module are selected, and only the selected sun gear modules move downwards to press against the cardboard. This structure of the first and second feeding modules, in conjunction with the control unit, results in more energy-efficient first and second feeding modules with less unnecessary energy loss.

[0209] The function of the first paper feeding module is to feed the cardboard from the paper changer into the box-making machine for processing. The function of the second paper feeding module is to send the processed cardboard out of the box-making machine.

[0210] Specific process: After the cardboard arrives at the first paper feeding module, the sun wheel of the sun wheel module drops and presses the cardboard firmly. Then, the paper feeding motor of the first paper feeding module drives the first paper feeding roller to rotate through the synchronous pulley and the first synchronous belt mechanism. With the cooperation of the sun wheel module and the paper feeding motor of the first paper feeding module, the cardboard is accurately delivered to the desired position.

[0211] During implementation, such as Figure 4B , Figure 4C , Figure 4D and Figure 4E As shown, the sun gear module 323-1 includes:

[0212] The sun gear mounting bracket 323-11 is U-shaped, and the vertical arm end of the sun gear mounting bracket 323-11 has a downward mounting opening 323-12;

[0213] Multiple sun gears 323-13 and sun gear mounting shafts 323-14, wherein each sun gear 323-13 is evenly mounted on the sun gear mounting shaft 323-14;

[0214] Sun gear baffle 323-15, wherein the sun gear baffle 323-15 has a sun gear baffle mounting hole;

[0215] Wherein, the end of the sun gear mounting shaft 323-14 enters the mounting opening 323-12 from bottom to top, and then the sun gear baffle mounting hole passes through the end of the sun gear mounting shaft 323-14 and the sun gear baffle 323-15 is fixed to the outside of the vertical arm of the sun gear mounting bracket 323-11.

[0216] In this way, the cooperation of the mounting opening 323-12 at the vertical arm end of the sun gear mounting shaft 323-14, the sun gear mounting bracket 323-11, and the sun gear baffle 323-15 enables the quick installation and removal of the sun gear mounting shaft and the sun gear on it, facilitating the subsequent replacement of damaged sun gears.

[0217] Specifically, such as Figure 4B and Figure 4C As shown, the sun gear module 323-1 also includes:

[0218] The sun gear cylinder 323-16 is fixed to the outer top surface of the transverse arm of the sun gear mounting bracket 323-11 to drive the sun gear mounting bracket 323-11 to move up and down.

[0219] Each sun gear module has a separate sun gear cylinder, allowing the sun gears of each sun gear module to move up and down as a whole.

[0220] The structure of the cardboard hopper is described below. For example... Figure 5 As shown, the cardboard hopper 1 includes multiple hoppers 11, a hopper support 12, a low-material warning sensor 13, a sensor support 14, a cardboard guide belt 15, and a cardboard guide belt support shaft 16. The low-material warning sensor 13 is mounted on the lower part of the hopper support 12 via the sensor support 14. The hoppers are used to hold stacks of continuously folded cardboard. The cardboard guide belt 15 and the cardboard guide belt support shaft 16 work together to achieve layered arrangement of cardboard of various widths.

[0221] The main advantage of this cardboard silo is that it has a cardboard surplus warning function. When the remaining cardboard height is lower than the surplus warning sensor 13, an alarm will be issued to remind the staff to replenish the cardboard.

[0222] The other structures of the box-making machine are described below.

[0223] Specifically, the box-making machine also includes a shell, an operation screen module, a paper pressing sheet metal module, a slotting and creasing module, and a paper discharge module.

[0224] The process of cardboard being processed into cartons by a carton-making machine is as follows:

[0225] After the cardboard is fed into the box-making machine by the paper changer, as... Figure 2B As shown, the first paper feeding module 321 continues to feed the paperboard forward. The paperboard passes through the first transverse cutting module 331, the transverse slotting and creasing module 34, the longitudinal slitting and creasing module 30, the second paper feeding module 322, and the second transverse cutting module 332.

[0226] When the preset length of the processed cardboard is greater than the distance between the first paper feeding module 321 and the second paper feeding module 322: when the cardboard entering the carton making machine is sufficient to complete a carton, the first transverse cutting module 331 cuts the cardboard. At this time, the first paper feeding module 321 no longer feeds paper, and the paper is mainly fed by the second paper feeding module 322.

[0227] After passing through the transverse slotting and creased module, the cardboard reaches the longitudinal slitting and creased module. The longitudinal slitting and creased module also includes longitudinal creased rollers spaced between the longitudinal creased rollers, through which the cardboard passes. The longitudinal slitting and creased module completes longitudinal creasing, width edge trimming, and carton flap processing.

[0228] The carton processing machine of this application has the following characteristics in processing cartons:

[0229] 1. Processing flow: The carton making machine obtains the data information of the carton to be processed. The PLC controls the carton making machine to adjust the position of the cutter according to the data and controls the paper changer to select the most suitable cardboard. The cardboard enters the carton making machine from the cardboard hopper through the paper changer. After the carton making machine performs processes such as slotting, slitting, creasing, and cutting, the carton is made.

[0230] 2. This carton processing machine is the first to integrate a cardboard hopper, a paper changer, and a carton making machine with integrated slotting, pressing, and cutting functions into one unit;

[0231] 3. The advantages of this equipment are as follows:

[0232] (1) Save paperboard materials by selecting the paperboard with the highest utilization rate from a variety of paperboard specifications to avoid waste of paperboard of a single specification;

[0233] (2) Fast processing of cartons; horizontal creases and slots can be completed with just one pressing action; cardboard feeds continuously with short waiting time; all-motor controlled cutters allow for fast speed adjustment;

[0234] (3) The processing of cartons is good, including grooving, creasing, and slitting. The edges of the formed cartons are neat, without cracks or tears.

[0235] (4) This carton processing machine is suitable for custom carton processing, custom product packaging, express carton processing, carton production in carton factories, etc.

[0236] Although preferred embodiments of this application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this application.

[0237] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A longitudinal cutter of a longitudinal slitting and creasing module of a carton processing machine, characterized in that, include: Longitudinal tool mount; A longitudinal creasing roller and a cutter mounting arm are installed at intervals at the bottom of the longitudinal cutter mounting seat; wherein, the longitudinal creasing roller is used to creasing the paperboard; A cutter drive assembly is connected to the lower part of the cutter mounting arm, and the cutter drive assembly is inclined backward and downward from the lower part of the cutter mounting arm; A longitudinal slitting blade is connected to the lower end of the cutter drive assembly, and the longitudinal slitting blade is used to longitudinally slit the cardboard; The bottom surface of the cutter drive assembly is a downwardly inclined lower guide surface, which guides the moving cardboard with the curled-up end after the crease along the lower guide surface to the longitudinal slitting blade.

2. The longitudinal cutting tool according to claim 1, characterized in that, The conveying direction of the lower edge of the longitudinal slitting blade is consistent with the front-to-back conveying direction of the cardboard under the longitudinal slitting blade, so as to guide the cardboard to move under the longitudinal slitting blade.

3. The longitudinal cutting tool according to claim 2, characterized in that, When the longitudinal slitting blade is in the longitudinal slitting working position, the downward tilt angle of the lower guide bottom surface from front to back is greater than or equal to 5 degrees and less than or equal to 25 degrees.

4. The longitudinal cutting tool according to claim 2, characterized in that, The cutting drive assembly includes: The longitudinal cutter drive gear, the longitudinal cutter transition gear, and the longitudinal cutter driven gear mesh sequentially; the longitudinal cutter drive gear is connected to the lower part of the cutter mounting arm; A cutter mounting shaft is fixed to the longitudinal cutter driven gear, and the longitudinal slitting blade is detachably connected to the cutter mounting shaft; Among them, the longitudinal cutter drive gear is the power input gear, and the longitudinal cutter driven gear is the power output gear, so that the longitudinal slitting blade is a longitudinal slitting blade that is powered and can rotate autonomously.

5. The longitudinal cutting tool according to claim 4, characterized in that, The cutter drive assembly also includes a cutter gearbox and a cutter gearbox cover, which together form a cutter gear mounting box. The longitudinal cutter drive gear, the longitudinal cutter transition gear, and the longitudinal cutter driven gear are inclined downwards from front to back within the gear mounting box from the lower part of the cutter mounting arm; The bottom surface of the cutter gearbox cover is a downward-sloping guide bottom surface that slopes from front to back.

6. The longitudinal cutting tool according to claim 5, characterized in that, The cutter mounting shaft of the cutter drive assembly passes through the housing composed of the cutter gearbox and the cutter gearbox cover, and extends symmetrically to both sides of the housing composed of the cutter gearbox and the cutter gearbox cover; The longitudinal slitting blade can be detachably mounted at either end and / or both ends of the blade mounting shaft.

7. The longitudinal cutting tool according to claim 6, characterized in that, The cutter drive assembly is a symmetrical structure with the center line of the cutter mounting shaft as the axis of symmetry; There are at least two longitudinal cutters, each of which is coaxially mounted on the longitudinal cutter drive shaft. The longitudinal slitting blades of two adjacent longitudinal cutters can be mounted on opposite sides so that the two longitudinal slitting blades are arranged adjacent to each other.

8. The longitudinal cutting tool according to claim 7, characterized in that, The longitudinal cutting tool also includes: The longitudinal pressing wheel cylinder is fixed to the bottom of the longitudinal cutter mounting base; The pressing cylinder connecting plate is fixed to the end of the piston rod of the longitudinal pressing wheel cylinder; A pressure roller mounting base is fixed to the bottom of the pressure cylinder connecting plate, and the longitudinal pressure roller is rotatably connected to the pressure roller mounting base; A pressure roller mounting shaft extends symmetrically through the pressure roller mounting seat, and the longitudinal pressure roller can be detachably mounted at either end and / or both ends of the pressure roller mounting shaft; The longitudinal pressing wheels of two adjacent longitudinal cutters can be installed on opposite sides so that the two longitudinal pressing wheels are set adjacent to each other.

9. The longitudinal cutting tool according to claim 8, characterized in that, The longitudinal pressing wheel and the longitudinal slitting blade, which are mounted on the same side of the longitudinal cutter, are located in the same straight line.

10. The longitudinal cutting tool according to claim 8, characterized in that, The longitudinal cutting tool also includes: The longitudinal slitting blade cylinder is fixed at a distance from the bottom of the longitudinal blade mounting seat, with the blade mounting arm and the longitudinal slitting blade cylinder being fixed at a distance from the front to the rear. The piston rod of the longitudinal slitting blade cylinder is fixed to the blade transmission assembly to drive the longitudinal slitting blade to move downward and return to its original position upward. The longitudinal cutter mounting base is located between the cutter mounting arm and the longitudinal slitting cutter cylinder and has a through-hole for vertically extending longitudinal cutter mounting base. The air inlet and outlet pipes of the longitudinal slitting cutter cylinder pass through the through-hole for vertical cutter mounting base.

11. The longitudinal cutting tool according to claim 10, characterized in that, The longitudinal pressure wheel cylinder is fixed to the bottom of the longitudinal cutter mounting base and located in front of the cutter mounting arm; The cutter mounting arm has a through-hole for the cutter mounting arm, and the air inlet and outlet pipes of the longitudinal pressure wheel cylinder pass through the through-hole for the cutter mounting arm and the through-hole for the longitudinal cutter mounting seat in sequence.

12. The longitudinal cutting tool according to claim 11, characterized in that, The longitudinal cutting tool also includes: A longitudinal tool motor mounting component is fixed to the top of the longitudinal tool mounting base. The longitudinal tool motor mounting component has a vertically penetrating longitudinal tool motor mounting component wire passage space, and the longitudinal tool motor mounting component wire passage space and the longitudinal tool mounting base wire passage hole are arranged vertically. The air inlet and outlet pipes of the longitudinal pressure wheel cylinder and the longitudinal slitting blade cylinder, which pass through the wire passage hole of the longitudinal tool mounting base, pass through the wire passage space of the longitudinal tool motor mounting component from bottom to top.

13. The longitudinal cutting tool according to claim 12, characterized in that, The longitudinal tool motor mounting component includes: Two flange support plates are fixed in parallel to the top of the longitudinal tool mounting seat; A motor flange seat, wherein the motor flange seat has a motor flange seat shaft hole and a motor flange seat wire passage hole arranged at the front and rear, and the space between the two flange support plates and the motor flange seat wire passage hole are connected to form a longitudinal tool motor mounting component wire passage space; The longitudinal cutter also includes a longitudinal cutter motor, which is fixed on the motor flange seat, and the output shaft of the longitudinal cutter motor extends downward from the shaft hole of the motor flange seat.

14. A carton-making machine for a cardboard box processing machine, characterized in that, Includes a longitudinal slitting and crease-pressing module, the longitudinal slitting and crease-pressing module comprising: The longitudinal cutting tool according to any one of claims 1 to 13; Longitudinal tool mounting beam; A longitudinal cutter rack and a longitudinal cutter gear mesh with each other, wherein the longitudinal cutter gear is fixed on the outer peripheral surface of the output shaft of the longitudinal cutter motor, and the longitudinal cutter rack is fixed on the side of the longitudinal cutter mounting beam along the length direction of the longitudinal cutter mounting beam; The longitudinal cutter motor drives the longitudinal cutter gear to rotate, and when the longitudinal cutter gear rotates, it causes the longitudinal cutter to move along the length direction of the longitudinal cutter mounting beam.

15. The box-making machine according to claim 14, characterized in that, The longitudinal slitting and crimping module also includes: The longitudinal cutter slider and the longitudinal cutter slide rail are in sliding fit. The longitudinal cutter slider is fixed on the top of the longitudinal cutter mounting base and located above the longitudinal pressing wheel cylinder. The longitudinal cutter slide rail is fixed to the bottom of the longitudinal cutter mounting beam along the length direction of the longitudinal cutter mounting beam.

16. The box-making machine according to claim 14, characterized in that, The longitudinal slitting and crimping module also includes: The longitudinal tool drive shaft is fixedly connected to the through hole reserved in the center of the drive gear positioning shaft; The longitudinal tool driven gear and the longitudinal tool driving gear are externally meshed, such that the longitudinal tool driven gear and the longitudinal tool driving gear rotate in opposite directions; wherein, the longitudinal tool driven gear is fixed to the end of the longitudinal tool drive shaft; The box-making machine also includes a second paper feeding module, which has a second paper feeding motor located below the cardboard position, and the output shaft of the second paper feeding motor is connected to a second drive synchronous belt mechanism. The second paper feeding drive gear and the longitudinal cutter drive gear are connected by a second drive synchronous belt mechanism, which enables the second paper feeding motor to drive the longitudinal cutter transmission shaft to rotate, thereby driving the longitudinal slitting cutter to rotate.

17. The box-making machine according to claim 16, characterized in that, The second paper feeding module also has a sun wheel located above the paperboard and capable of moving up and down. The longitudinal slitting blade and the sun wheel of the second paper feeding module are arranged at an interval. Wherein, the gap between the longitudinal slitting blade and the sun wheel of the second paper feeding module is less than or equal to 20 cm; or the gap between the longitudinal slitting blade and the sun wheel of the second paper feeding module is greater than or equal to 1 mm and less than or equal to 200 mm, and the sun wheel of the second paper feeding module is used to feed paper onto the paperboard after longitudinal slitting and pressing for paper output.

18. A cardboard box processing machine, characterized in that, Includes a paper changer and a box-making machine according to any one of claims 14 to 17; the paper changer includes: Paper changer frame; A paper changer channel module is vertically slidably connected within the paper changer frame. The paper changer channel module has multiple paper changer channels installed at intervals in layers, and each paper changer channel is used to clamp a cardboard of a certain width. The paper changer channel advance / retreat mechanism is used to move the selected paper changer channel forward after it has been moved to a preset height, so as to carry out subsequent paperboard processing steps.

19. The carton processing machine according to claim 18, characterized in that, The paper changer channel module includes: The paper changer channel, each of the paper changer channels has protruding channel limiting shafts at both ends; Two paper changer channel module side plates, each paper changer channel module side plate has multiple paper changer channel slides arranged at intervals and passing through the paper changer channel module side plate, and a channel limiting shaft protrudes from the paper changer channel module side plate through the paper changer channel slide. The channel limiting shaft can move back and forth along the paper changer channel slide.

20. The carton processing machine according to claim 19, characterized in that, The paper changer also includes a paper changer channel advance / retreat mechanism, which includes: Two paper changer channel limiting grooves, wherein the guiding direction of the paper changer channel limiting grooves is vertical; Paper changer advance / reverse cylinder; A movable limiting groove is fixed on the cylinder body of the paper changer's inward and outward cylinder. The guide direction of the movable limiting groove is vertical, and the movable limiting groove is set between two paper changer channel limiting grooves so that the two paper changer channel limiting grooves and the paper changer channel limiting groove are connected to form an up-down movement channel. The channel limiting shaft can move along the up-down movement channel. The paper changer advance / retreat cylinder is a rodless cylinder, and the cylinder body of the paper changer advance / retreat cylinder can reciprocate in the front-back direction on the cylinder shaft.

Images