Paper tube slotting device and slotting method thereof

Abstract

The invention discloses a paper tube slotting device and a slotting method thereof, and belongs to the technical field of paper tube slotting, the paper tube slotting device comprises a frame body unit, a plurality of clamping units, a driving unit and a cutting unit; the multiple clamping units, the driving unit and the cutting unit are installed on the frame body unit. The clamping unit clamps the two ends of a paper tube, the driving unit drives the cutting unit, and the cutting unit cuts the paper tube to form a groove. According to the invention, multiple paper tube slots are reduced.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of paper tube slotting, and particularly relates to a paper tube slotting device and a slotting method thereof. BACKGROUND

[0002] Paper tubes are widely used in packaging, transportation, construction and industrial production as an important material, and the processing quality of the paper tubes directly affects their functionality and application effect. In the paper tube production process, the paper tube usually needs to be slotted after the end face is polished to meet the requirements of specific uses, such as convenient connection, installation or functional design.

[0003] At present, slotting machines are generally used in the industry to slot paper tubes. Traditional single-station slotting machines usually adopt hydraulic, pneumatic or mechanical cam feeding modes, the paper tube is clamped by a cylinder, and the cutting knife is linked with the paper tube to rotate to complete the slotting process. However, the traditional paper tube slotting machine has the following technical problems in actual use: (1) complicated clamping and feeding adjustment: the traditional slotting equipment relies on the fixed stroke of hydraulic, pneumatic or mechanical cam to clamp and feed. For paper tubes of different lengths or specifications, the original position of the cylinder or the mechanical structure needs to be adjusted manually, which is complicated and time-consuming, and seriously limits the adaptability of the equipment to various specifications of paper tubes; (2) low processing size precision: the slotting size is usually determined by adjusting the stroke of the cylinder, the cylinder or the mechanical cam and the position of the workbench, and there is a lack of precise control means, which makes it difficult to ensure the slotting size precision and affects the quality consistency of the paper tube; (3) low production efficiency: the traditional single-station slotting machine is difficult to realize synchronous coordination with other stations, which easily causes material accumulation or idling on the production line, reducing the overall production efficiency and the stability of the processing quality.

[0004] Therefore, the traditional paper tube slotting machine still has deficiencies in processing precision, clamping control and production efficiency, and there is an urgent need to improve the paper tube slotting machine to provide a new slotting solution for the paper tube production industry to overcome the above problems and improve the slotting efficiency and quality of the paper tube. SUMMARY

[0005] The application provides a paper tube slotting device and a slotting method thereof, which aims to partially or completely solve the technical problems of complicated clamping and feeding adjustment, low processing size precision, low production efficiency, low detection efficiency and easy errors of the paper tube slotting machine in the prior art. In order to achieve the above purpose, the application adopts the following technical solutions: In a first aspect, a paper tube slotting device comprises:

[0006] a frame unit, a plurality of clamping units, a driving unit and a cutting unit; The plurality of clamping units, the driving unit and the cutting unit are installed on the frame unit. The clamping unit clamps both ends of the paper tube, the driving unit drives the cutting unit, and the cutting unit cuts the paper tube to form a slot.

[0007] Optionally, the clamping unit comprises a support, a first lifting assembly, a second lifting assembly, a first clamping assembly, and a second clamping assembly. The first lifting assembly comprises a first hand wheel and a first threaded rod. The first hand wheel is connected to the first threaded rod, and the first threaded rod is screw-connected to the support. The second lifting assembly comprises a second hand wheel and a second threaded rod. The second hand wheel is connected to the second threaded rod, and the second threaded rod is screw-connected to the support. The first clamping assembly comprises a rotating shaft, a first clamping disc, and a first mounting frame. The first clamping disc is connected to the rotating shaft, and the rotating shaft is mounted on the first mounting frame. The second clamping assembly comprises a driving motor, a second mounting frame, a gear, a rack, a second clamping disc, and a positioning disc. The driving motor is mounted on the second mounting frame, and the output shaft of the driving motor is connected to the gear. The rack is movably mounted on the second mounting frame, and the gear is engaged with the rack. The rack is connected to the second clamping disc. The first clamping disc and the second clamping disc clamp both ends of the paper tube. The positioning disc is connected to the second mounting frame, and the positioning disc positions the second clamping disc. The first threaded rod is connected to the first mounting frame, and the second threaded rod is connected to the second mounting frame. The second clamping disc clamps or tightens the paper tube.

[0008] Optionally, the driving unit comprises a motor, a driving gear, and a motor support. The motor support is mounted on the frame unit, and the motor is mounted on the motor support. The driving gear is mounted on the motor.

[0009] Optionally, the cutting unit comprises a moving rack, a connecting plate, a plurality of guide rails, and a plurality of cutting knives. The moving rack is connected to the connecting plate, and the connecting plate slides on the plurality of guide rails. The plurality of cutting knives are distributed on the moving rack at intervals. The driving gear is engaged with the moving rack.

[0010] Optionally, when the second clamping disc is flush with the end surface of the positioning disc, the paper tube after slotting is completed is returned to the original position. The paper tube after slotting and the paper tube after returning to the original position form a moving distance W. The length of the paper tube after slotting is L. The following condition is satisfied: W / L≤1 / 3.

[0011] In a second aspect, a paper tube slotting method is provided. The paper tube slotting method uses the paper tube slotting device of any one of the first aspect. The paper tube slotting method comprises the following steps. Step S100: The clamping unit clamps both ends of the paper tube. Step S200: The driving unit drives the cutting unit, and the cutting unit cuts the paper tube to form a slot.

[0012] Optionally, the step S100 comprises: conveying the paper tube between the first clamping disc and the second clamping disc, driving the motor to rotate the gear, rotating the gear to drive the rack to move, moving the rack to drive the second clamping disc to move, the second clamping disc contacting one end of the paper tube, the second clamping disc moving to push the other end of the paper tube to contact the first clamping disc, the first clamping disc and the second clamping disc clamping the two ends of the paper tube, the second clamping disc clamping or tensioning the paper tube, and the center of the paper tube moving towards the first clamping disc.

[0013] Optionally, the step S200 comprises: rotating the motor to drive the driving gear to rotate, rotating the driving gear to drive the moving rack to move, moving the moving rack to drive the cutting knife to contact the paper tube, and cutting the paper tube to form a slot.

[0014] Optionally, the step S200 further comprises a step S300 of conveying the paper tube after the slotting is completed.

[0015] Optionally, the step S300 comprises: after the cutting knife cuts the paper tube to form a slot, the cutting knife moving away from the paper tube, the second clamping disc clamping or tensioning the paper tube, the second clamping disc driving the paper tube to move until the end surface of the second clamping disc is flush with the end surface of the positioning disc, the clamping unit driving the paper tube after the slotting to return to the original position, the center of the paper tube after the slotting being located at the center of the carrier, and the first conveying member and the second conveying member moving to jointly convey the paper tube after the slotting.

[0016] (1) In the present application, first, the clamping unit can adjust the clamping space for different specifications of paper tubes, without manual intervention to adjust the paper tube slotting device, a plurality of clamping units can simultaneously clamp the paper tube, and the slotting unit can slot a plurality of paper tubes, thereby improving the paper tube slotting processing efficiency; in addition, visual detection replaces manual visual inspection, reduces the missed detection and misdiagnosis rate, reduces the labor intensity of paper tube slotting quality detection, and improves the reliability of product quality on the production line.

[0017] (2) In this invention application, in step S100, the clamping unit firmly clamps both ends of the paper tube, which can effectively prevent the paper tube from moving or shifting during the subsequent cutting process. In step S200, the driving unit is responsible for driving the cutting unit to cut the paper tube. The driving unit controls the cutting unit to move according to the predetermined path and position, thereby cutting an accurate groove on the paper tube and reducing material waste caused by errors. At this time, the second clamping plate clamps or tightens the paper tube and drives it to move until the end face of the second clamping plate is flush with the end face of the positioning plate, ensuring the correct position of the paper tube after grooving. The cutting blade moves away from the paper tube after grooving, preparing for subsequent conveying. The first conveying component and the second conveying component start to move. Their respective carriers work together to smoothly convey the paper tube after grooving to the next process. The collaborative working mode of the two conveying components reduces the risk of damage to the paper tube during the transfer process, improves the overall production efficiency of paper tube grooving processing, and ensures the consistency of grooving of each paper tube, meeting the needs of large-scale production of paper tube processing. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the paper tube slotting device of the present invention. Figure One ; Figure 2 This is a schematic diagram of the paper tube slotting device of the present invention. Figure Two ; Figure 3 This is a schematic diagram of the structure of the clamping unit of this invention application. Figure One ; Figure 4 This is a schematic diagram of the structure of the clamping unit of this invention application. Figure Two ; Figure 5 This is a schematic diagram of the drive unit, partial cutting unit, and frame unit of the present invention. Figure 6 This is a schematic diagram of the structure of some of the clamping unit, driving unit, cutting unit and frame unit of this invention application; Figure 7 This is a schematic diagram illustrating the movement principle of the paper tube after slotting and after repositioning, as described in this invention application. The accompanying drawings are included to provide a further understanding of the present application and are incorporated in and constitute a part of the specification. They illustrate embodiments of the present application and, together with the description, serve to explain the principles of the present application. They must not be considered limiting the present application. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0021] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In order to make the purpose, technical scheme and advantages of the present application more clear, the embodiments of the present application will be further described in detail below with reference to the drawings.

[0022] In addition, the terms "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is one or two or more than two, unless otherwise specifically limited.

[0023] In order to make the purpose, technical scheme and advantages of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0024] Paper tube slotting device As Figures 1 to 7 shown, in a first aspect, a paper tube slotting device comprises: a frame unit 100, a plurality of clamping units 200, a driving unit 300, and a cutting unit 400. A plurality of clamping units 200, driving units 300, and cutting units 400 are mounted on the frame unit 100; the clamping unit 200 clamps the two ends of the paper tube, the driving unit 300 drives the cutting unit 400, and the cutting unit 400 cuts the paper tube to form a slot.

[0025] In some embodiments, the frame unit 100 serves as the support structure of the entire device, which can be made of high-strength steel or aluminum alloy, and a stable frame is formed by welding or bolt connection, so that the frame unit 100 has sufficient load-bearing capacity. The clamping unit 200 and the driving unit 300 can be detachably connected to the frame unit 100 by bolts, etc., which is convenient for disassembly and maintenance. The clamping unit 200 is located at the two ends of the paper tube, and the clamping space of the clamping unit 200 can be adjusted to adapt to paper tubes of different lengths. A plurality of clamping units 200, for example, 3-6, etc., can clamp the paper tube synchronously, and the cutting unit can simultaneously slot a plurality of paper tubes.

[0026] In some embodiments, the paper tube conveying device can convey the paper tube to between the clamping units 200, and a sensor can be used to detect whether the paper tube is in place. When it is detected that the paper tube is in place, the clamping units 200 are driven to clamp the two ends of the paper tube synchronously. The clamping force can be monitored in real time by a pressure sensor to ensure reliable clamping and no damage to the surface of the paper tube. The driving unit 300 drives the cutting unit 400, and the cutting unit 400 can cut along a predetermined path to form a slot on the surface of the paper tube that meets the requirements. After the paper tube slotting process is completed, the clamping unit 200 is disengaged from the paper tube, and a visual detection unit (such as a CCD camera) can be used to take a picture of the surface of the paper tube after slotting, detect the slot size, surface quality, and whether there are defects, and the detection results are displayed in real time on the human-machine interface. When an abnormality occurs, an alarm is automatically triggered, and qualified paper tubes are sent to the next process by the paper tube conveying device, and unqualified paper tubes are rejected. The paper tube conveying device loads multiple paper tubes, and the paper tube slotting device enters the next processing cycle to realize continuous paper tube slotting production.

[0027] In the present application, firstly, for different specifications of paper tubes, the clamping space of the clamping unit can be adjusted without manual intervention to adjust the paper tube slotting device, multiple clamping units can clamp the paper tube synchronously, and the slotting unit can slot multiple paper tubes, thereby improving the paper tube slotting processing efficiency. In addition, visual detection replaces manual visual inspection, reduces the rate of missed detection and misdiagnosis, reduces the labor intensity of paper tube slotting quality detection, and improves the reliability of product quality on the production line.

[0028] Optionally, the clamping unit 200 comprises a bracket 201, a first lifting assembly, a second lifting assembly, a first clamping assembly, a second clamping assembly, the first lifting assembly comprises a first hand wheel 202 and a first threaded rod, the first hand wheel is fixedly connected to the top end of the first threaded rod by means of bolt connection or welding, and the first threaded rod is screw-connected to the bracket 201 through a threaded hole, and the inner wall of the threaded hole is made of wear-resistant material (such as brass or nylon bushing) to reduce friction and improve the rotation smoothness of the threaded rod.

[0029] In some embodiments, the bracket 201 is made of high-strength steel or aluminum alloy, and is fixed on the frame unit 100 by welding or bolt connection, serving as a support structure of the clamping unit 200.

[0030] In some embodiments, the first lifting assembly comprises a first hand wheel 202 and a first threaded rod, the first hand wheel 202 is fixedly connected to the top end of the first threaded rod by means of bolt connection or welding, and the first threaded rod is screw-connected to the bracket 201 through a threaded hole, and the inner wall of the threaded hole is made of wear-resistant material (such as brass or nylon bushing) to reduce friction and improve the rotation smoothness of the threaded rod.

[0031] In some embodiments, the second lifting assembly comprises a second hand wheel 203 and a second threaded rod, the second hand wheel 203 is fixedly connected to the second threaded rod by means of the same bolt connection or welding, and the second threaded rod is also screw-connected to the bracket 201 through a threaded hole, ensuring the stability of the lifting movement. The bottom end of the first threaded rod can be connected to the first mounting bracket 2043 through a bolt fastener or a bearing, ensuring that the first mounting bracket 2043 smoothly moves up and down with the rotation of the first threaded rod, and the bottom end of the second threaded rod can also be connected to the second mounting bracket 2052 through a bolt fastener or a bearing, ensuring the up-and-down movement of the second mounting bracket 2052.

[0032] In some embodiments, the second clamping disc 2054 can clamp or tighten the paper tube. When the second clamping disc 2054 can tighten the paper tube in a tightening manner, the tightening element in the second clamping disc can be expanded or contracted radially by a mechanical mechanism or a pneumatic mechanism, the tightening element is expanded radially by its axial movement, and the inner wall of the paper tube is compressed; or, the outer periphery of the second clamping disc is formed with an air cushion of inflation / deflation type, which is in close contact with the inner wall of the paper tube, so as to exert a clamping force on the inner wall of the paper tube and achieve clamping of the paper tube.

[0033] In some embodiments, the first clamping assembly includes a rotating shaft 2041, a first clamping disc 2042 and a first mounting frame 2043, the rotating shaft 2041 is installed on the first mounting frame 2043 through a bearing (such as a double-row angular contact bearing), which ensures that the rotating shaft 2041 can rotate; the first clamping disc 2042 can be fixed on the end of the rotating shaft 2041 through a flange or a bolt, and the surface of the first clamping disc 2042 can be provided with a rubber or silicone non-slip pad to increase the friction with the paper tube and prevent damage to the surface of the paper tube.

[0034] In some embodiments, the second clamping assembly includes a driving motor 2051, a second mounting frame 2052, a gear, a rack 2053, a second clamping disc 2054 and a positioning disc 2055. The driving motor 2051 can be fixed on the second mounting frame 2052 through a base and a bolt; the output shaft of the driving motor 2051 is connected with the gear, the gear is engaged with the rack 2053, the rack 2053 is movably installed on the second mounting frame 2052 through a sliding groove or a guide rail, which ensures the linear motion of the rack 2053, and the end of the rack 2053 can be connected with the second clamping disc 2054 through a bolt or welding, the second clamping disc 2054 can clamp or tighten the paper tube; the positioning disc 2055 can be connected with the second mounting frame 2052 through a bolt or welding. Through the lifting adjustment of the first threaded rod and the second threaded rod, the first clamping disc 2042 and the second clamping disc 2054 are accurately flush with the two ends of the paper tube, and the first clamping disc 2042 and the second clamping disc 2054 clamp the two ends of the paper tube respectively, which can be controlled by the driving motor-gear-rack mechanism to ensure the stable clamping of the two ends of the paper tube.

[0035] In some embodiments, the first mounting frame 2043 and the second mounting frame 2052 can be lifted to a position flush with the ends of the paper tube after the paper tube is transported by rotating the first hand wheel 202 and the second hand wheel 203 to drive the first threaded rod and the second threaded rod respectively; the paper tube is transported between the first clamping disc 2042 and the second clamping disc 2054, the driving motor 2051 is started, the output shaft drives the gear to rotate, the gear drives the rack 2053 to move along the linear guide rail, and the second clamping disc 2054 is pushed to approach the end face of the paper tube. The second clamping disc 2054 clamps the paper tube together with the first clamping disc 2042, and the second clamping disc 2054 clamps or tightens the paper tube, and the clamping degree can be adjusted by the torque control of the driving motor 2051 and the rack transmission. After the paper tube is clamped, the cutting unit 400 cuts according to the preset parameters (for example, the slotting depth and position can be input through the man-machine interface), to ensure the slotting accuracy; after the paper tube is slotted, the driving motor 2051 is reversely rotated, the rack 2053 drives the second clamping disc 2054, and the second clamping disc 2054 drives the paper tube to move, and the second clamping disc 2054 returns to the position of the positioning disc 2055, and the paper tube after slotting is transported.

[0036] In the present application, first, the clamping unit is driven by the first lifting assembly and the second lifting assembly of the hand wheel, combined with the high-precision threaded rod (positioning accuracy ±0.05mm), to realize quick and flexible clamping position adjustment, adapt to paper tubes of various diameters, and improve the adaptability of the equipment to paper tubes of various specifications; in addition, the second clamping assembly adopts the driving motor 2051 and the gear-rack mechanism, and the clamping degree can be adjusted, which improves the clamping stability of the paper tube, and multiple clamping units can work synchronously to slot multiple paper tubes, thereby improving the paper tube slotting production efficiency.

[0037] Optionally, the driving unit 300 includes a motor 301, a driving gear 302, and a motor support 303, the motor support 303 is installed on the frame unit 100, the motor 301 is installed on the motor support 303, and the driving gear 302 is installed on the motor 301.

[0038] In some embodiments, the motor support 303 is made of high-strength steel or aluminum alloy, and mounting holes can be arranged on the surface of the frame unit 100 and fixed on the frame unit 100 by high-strength bolts or welding; the motor 301 can be fixed on the motor support 303 by a flange and bolts, the output shaft of the motor 301 can be connected with the driving gear 302 by a key, the driving gear 302 can be engaged with the moving rack 401 of the cutting unit 400, and the engagement gap is controlled within 0.05-0.1mm, to reduce transmission error and prolong the service life of the gear.

[0039] Optionally, the cutting unit 400 comprises a moving rack 401, a connecting plate 402, a plurality of guide rails 403, and a plurality of cutting knives 404. The moving rack 401 is connected to the connecting plate 402, the connecting plate 402 slides on the plurality of guide rails 403, and the plurality of cutting knives 404 are distributed on the moving rack 401 at intervals. The driving gear 302 is engaged with the moving rack 401.

[0040] In some embodiments, the moving rack 401 is fixed on the connecting plate 402 by bolts or welding. The connecting plate 402 is made of high-strength steel plate, the rack 401 is engaged with the driving gear 302 of the driving unit 300, and the connecting plate 402 can be installed on the plurality of guide rails 403 (for example, 2-4 parallel linear guide rails) through a sliding block. The guide rails 403 can be fixed on the frame unit 100 by bolts, and the guide rail surfaces are hardened to improve wear resistance. The plurality of cutting knives 404 (for example, 3-5) can be distributed on the moving rack 401 at intervals through knife seats, and the knife seats can be connected with the moving rack 402 through a detachable connection structure (for example, bolt fastening connection mode, etc.), which can realize the synchronous slotting position requirement of multiple paper tubes.

[0041] In some embodiments, the paper tube is clamped by the clamping unit 200, the motor 301 of the driving unit 300 is started, the driving gear 302 rotates, the moving rack 401 moves linearly along the guide rail 403, the connecting plate 402 moves with the rack 401, and the plurality of cutting knives 404 move close to the surface of the paper tube. The cutting knife 404 cuts into the paper tube at a predetermined depth, and the plurality of cutting knives 404 move to complete the slotting of the paper tube. After the slotting of the paper tube is completed, the motor 301 is reversed, the driving gear 302 drives the rack 401 and the connecting plate 402 to reset, and the cutting unit 400 enters the standby state, preparing for the next round of slotting processing.

[0042] In some embodiments, the encoder monitors the speed and angle of the motor 301 in real time, and the signal is fed back to the controller. The motor speed is adjusted through closed-loop control to ensure the accuracy of the moving position of the rack 401. The motor 301 is started, and the output shaft drives the driving gear 302 to rotate. The driving gear 302 is engaged with the moving rack 401 of the cutting unit 400, and the rotational motion is converted into linear motion of the rack 401, which drives the cutting knife 404 to perform paper tube slotting processing. After the processing is completed, the motor 301 is reversed according to the instruction of the controller, the driving gear 302 drives the rack 401 to reset, and prepares for the next multiple paper tube slotting processing.

[0043] In the present application, the driving unit 300 adopts the combination of the motor 301 and the driving gear 302 to replace the traditional hydraulic or mechanical cam driving, thereby improving the positioning accuracy and transmission efficiency; in addition, the high-precision meshing of the driving gear 302 and the moving rack 401 ensures the stability and reliability of power transmission, reduces the machining size error caused by mechanical clearance of the traditional equipment, and improves the slotting quality consistency; in addition, the driving unit 300, the plurality of clamping units 200 and the cutting unit 400 work cooperatively, the multi-cutter synchronous cutting design can complete multiple slotting in single machining, compared with the traditional single-station slotting equipment, the overall production efficiency and the production automation level of the paper tube are improved.

[0044] Optionally, when the second clamping disc 2054 returns to be flush with the end face of the positioning disc 2055, the paper tube after slotting completes the return, and the paper tube after slotting and the paper tube after slotting after return form a moving distance W, the length of the paper tube after slotting is L, and W / L≤1 / 3 is satisfied.

[0045] In some embodiments, when the second clamping disc 2054 returns to be flush with the end face of the positioning disc 2055, the paper tube after slotting completes the return, and the paper tube after slotting and the paper tube after slotting after return form a moving distance W.

[0046] In the present application, as shown in Figure 7 W / L≤1 / 3 limits the moving distance of the paper tube during return to be less than one third of the length of the paper tube, and such a short moving distance can reduce the time required for the return of the paper tube, improve the overall production efficiency, and optimize the operation of the production line.

[0047] Optionally, the paper tube slotting device further comprises a paper tube conveying unit, the paper tube conveying unit comprising a first conveying member 501 and a second conveying member 502, the first conveying member 501 moving along a first guide member 503, and the second conveying member 502 moving along a second guide member 504, each of the first conveying member 501 and the second conveying member 502 being respectively provided with a bearing frame 505, and the two bearing frames 505 being provided with paper tubes.

[0048] In some embodiments, each bearing frame 505 can be fixed on the first conveying member 501 and the second conveying member 502 by means of a fastener such as a bolt, and the bearing frame 505 is provided with a bearing groove which can be a V-shaped groove or an arc-shaped groove, and the bearing groove can bear the paper tube.

[0049] In some embodiments, the first conveying member 501 and the second conveying member 502 are connected with a conveying motor through a chain or a synchronous belt, the conveying motor is fixed on the frame unit 100, and the conveying motor is started to drive the first conveying member 501 to move along the first guide member 503 and the second conveying member 502 to move along the second guide member 504 synchronously through the chain or the synchronous belt, the two bearing frames 505 are respectively fixed on the first conveying member 501 and the second conveying member 502, the bearing frame 505 supports the paper tube, and efforts are made to ensure that the paper tube does not slide or deviate during the conveying process; after the paper tube is slotted, the clamping unit 200 drives the paper tube after slotted to return to the original position, the paper tube after slotted can be located at the center position of the bearing frame 505, and the paper tube after slotted is conveyed by the paper tube conveying unit.

[0050] Paper tube slotting method In the second aspect, a paper tube slotting method is provided, which adopts the paper tube slotting device of any one of the first aspect, and accordingly includes all the technical problems, technical solutions and technical effects of the paper tube slotting device of any one of the first aspect, which will not be described herein again. In the second aspect, a paper tube slotting method is provided, which adopts the paper tube slotting device of any one of the first aspect, and accordingly includes all the technical problems, technical solutions and technical effects of the paper tube slotting device of any one of the first aspect, which will not be described herein again.

[0051] Step S100: the clamping unit 200 clamps both ends of the paper tube; Specifically, the step S100 includes: The paper tube is conveyed to the clamping unit 200, specifically, the paper tube is conveyed between the first clamping disc 2042 and the second clamping disc 2054, the driving motor 2051 is rotated to drive the gear 2053 to rotate, the gear 2053 is rotated to drive the rack 2053 to move, the rack 2053 is moved to drive the second clamping disc 2054 to move, the second clamping disc 2054 contacts one end of the paper tube, the second clamping disc 2054 is moved to push the other end of the paper tube to contact the first clamping disc 2042, the first clamping disc 2042 and the second clamping disc 2054 clamp both ends of the paper tube, the second clamping disc 2054 clamps or tightens the paper tube, and the center of the paper tube moves to the first clamping disc 2042.

[0052] In the application, first, the paper tube is transported to between the first clamping disc 2042 and the second clamping disc 2054 by the paper tube conveying unit, and the movement of the second clamping disc 2054 is driven by the gear 2053 and the rack 2053 in combination with the driving motor 2051, so that the two ends of the paper tube are flush and clamped; in addition, the second clamping disc 2054 can quickly push one end of the paper tube to contact the first clamping disc 2042 and complete clamping through the servo driving of the gear-rack mechanism, the clamping process is short in time consumption, the cumbersome adjustment steps are eliminated, and the downtime of the production line is reduced; in addition, the movement control of the center of the paper tube to the first clamping disc 2042 in combination with the clamping design of the second clamping disc 2054 ensures the stability and no deviation of the paper tube in the clamping process.

[0053] Step S200: The driving unit 300 drives the cutting unit 400, and the cutting unit 400 cuts the paper tube to form a slot.

[0054] Specifically, step S200 includes: the motor 301 rotates to drive the driving gear 302 to rotate, the driving gear 302 rotates to drive the moving rack 401 to move, the moving rack 401 moves to drive the cutting knife 404 to contact the paper tube, and the cutting knife 404 cuts the paper tube to form a slot.

[0055] After step S200, step S300 of conveying the paper tube after slotting is further included.

[0056] Specifically, step S300 includes: After the cutting knife 404 cuts the paper tube to form a slot, the cutting knife 404 moves away from the paper tube, the second clamping disc 2054 clamps or tightens the paper tube, the second clamping disc 2054 drives the paper tube to move, until the end face of the second clamping disc 2054 is flush with the end face of the positioning disc, the clamping unit 200 drives the paper tube after slotting to return to position, the center of the paper tube after slotting can be located at the center position of the carrier 505, the first conveying part 501 and the second conveying part 502 move, the carrier 5051 of the first conveying part 501 and the carrier of the second conveying part 502 jointly convey the paper tube after slotting.

[0057] In the application, in step S300, the second clamping disc 2054 drives the paper tube after slotting to move to the flush end face of the positioning disc, so as to ensure that the paper tube returns to position at the center position of the carrier 505, through the cooperative action of the second positioning disc 2054 and the positioning disc 2055, the position accuracy of the paper tube is improved, the return to position of the paper tube provides reliable guarantee for subsequent conveying of the paper tube after slotting, and conveying failure caused by positioning deviation is avoided.

[0058] In the paper tube slotting method of the application, in step S100, the clamping unit firmly clamps both ends of the paper tube, which can effectively prevent the paper tube from moving or deviating in the subsequent cutting process, in step S200, the driving unit is responsible for driving the cutting unit to cut the paper tube, and the driving unit controls the cutting unit to move according to the predetermined path and position, so as to cut accurate slots on the paper tube, reducing the material waste caused by errors, at this time, the second clamping disc clamps or tightens the paper tube and drives it to move until the end face of the second clamping disc is flush with the end face of the positioning disc, ensuring the correct position of the paper tube after slotting, the cutting knife is away from the paper tube after slotting, and the subsequent conveying is prepared, the first conveying part and the second conveying part start to move, and the bearing frames of the first conveying part and the second conveying part jointly act to stably convey the paper tube after slotting to the next process, the cooperative working mode of the double conveying parts reduces the risk of damage to the paper tube during transfer, improves the paper tube slotting production efficiency as a whole, and ensures the consistency of each paper tube slotting, meeting the large-scale production demand of paper tube processing.

[0059] The technical features of the above embodiments can be combined in any manner. To make the description concise, not all possible combinations of the technical features in the above embodiments are described, but as long as the combinations of the technical features do not contradict, they should be considered within the scope of the disclosure. Those skilled in the art can understand that the steps, measures, and schemes in the various operations, methods, and processes discussed in the application can be alternated, changed, combined, or deleted; further, other steps, measures, and schemes in the various operations, methods, and processes discussed in the application can be alternated, changed, rearranged, decomposed, combined, or deleted; further, the steps, measures, and schemes in the various operations, methods, and processes in the prior art can be alternated, changed, rearranged, decomposed, combined, or deleted. The above-described embodiments only express several implementation manners of the present disclosure, and the description is more specific and detailed, but it should not be understood as a limitation on the patent scope of the present disclosure. It should be noted that, for those skilled in the art, without departing from the concept of the present disclosure, several modifications and improvements can be made, which are within the protection scope of the present disclosure; therefore, the protection scope of the present disclosure should be subject to the appended claims.

Claims

1. A paper tube slotting device, characterized in that, include: Frame unit, multiple clamping units, drive unit, cutting unit; Multiple clamping units, drive units, and cutting units are mounted on the frame unit; The clamping unit clamps both ends of the paper tube, and the driving unit drives the cutting unit to cut the paper tube to form a groove.

2. The paper tube slotting device according to claim 1, characterized in that, The clamping unit includes a bracket, a first lifting assembly, a second lifting assembly, a first clamping assembly, and a second clamping assembly. The first lifting assembly includes a first handwheel and a first threaded rod, with the first handwheel connected to the first threaded rod and the first threaded rod screwed to the bracket. The second lifting assembly includes a second handwheel and a second threaded rod, with the second handwheel connected to the second threaded rod and the second threaded rod screwed to the bracket. The first clamping assembly includes a rotating shaft, a first clamping plate, and a first mounting bracket, with the first clamping plate connected to the rotating shaft and the rotating shaft mounted on the first mounting bracket. The second clamping assembly includes a drive motor, a second mounting bracket, a gear, a rack, a second clamping disc, and a positioning disc. The drive motor is mounted on the second mounting bracket, and the output shaft of the drive motor is connected to the gear. The rack is movably mounted on the second mounting bracket, and the gear meshes with the rack. The rack is connected to the second clamping disc. The first clamping disc and the second clamping disc clamp both ends of the paper tube. The positioning disc is connected to the second mounting bracket and positions the second clamping disc. A first threaded rod is connected to the first mounting bracket, and a second threaded rod is connected to the second mounting bracket. The second clamping disc clamps or tensions the paper tube.

3. The paper tube slotting device according to claim 2, characterized in that, The drive unit includes a motor, a drive gear, and a motor bracket. The motor bracket is mounted on the frame unit, the motor is mounted on the motor bracket, and the drive gear is mounted on the motor.

4. The paper tube slotting device according to claim 2, characterized in that, The cutting unit includes a moving rack, a connecting plate, multiple guide rails, and multiple cutting blades. The moving rack is connected to the connecting plate, the connecting plate slides on the multiple guide rails, and the multiple cutting blades are spaced apart on the moving rack. The drive gear meshes with the moving rack.

5. A paper tube slotting device according to claim 4, characterized in that, When the second clamping plate returns to the end face of the positioning plate, the paper tube after grooving is completed and returns to its original position; the paper tube after grooving and the paper tube after grooving after returning to its original position form a moving distance W, and the length of the paper tube to be grooved is L, satisfying: W / L≤1 / 3.

6. A method for slotting paper tubes, employing the paper tube slotting device described in any one of claims 1-5, characterized in that, include: Step S100: The clamping unit clamps both ends of the paper tube; Step S200: The drive unit drives the cutting unit, and the cutting unit cuts the paper tube to form a groove.

7. A method for slotting paper tubes according to claim 6, characterized in that, Step S100 includes: the paper tube is fed between the first clamping plate and the second clamping plate; the drive motor rotates to drive the gear to rotate; the gear rotates to drive the rack to move; the rack moves to drive the second clamping plate to move; the second clamping plate contacts one end of the paper tube; the movement of the second clamping plate pushes the other end of the paper tube to contact the first clamping plate; the first clamping plate and the second clamping plate clamp both ends of the paper tube; the second clamping plate clamps or tightens the paper tube; and the center of the paper tube moves toward the first clamping plate.

8. A method for slotting paper tubes according to claim 7, characterized in that, Step S200 includes: the motor rotating to drive the drive gear to rotate, the drive gear rotating to drive the moving rack to move, the moving rack moving to drive the cutting blade to contact the paper tube, and the cutting blade cutting and slotting the paper tube.

9. A method for slotting paper tubes according to claim 8, characterized in that, Step S200 is followed by step S300: conveying the slotted paper tube after the slotting is completed.

10. A method for slotting a paper tube according to claim 9, characterized in that, Step S300 includes: after the cutting blade cuts and slots the paper tube, the cutting blade moves away from the paper tube. Because the second clamping plate clamps or tightens the paper tube, the second clamping plate drives the paper tube to move until the end face of the second clamping plate is flush with the end face of the positioning plate. After the clamping unit completes the slotting, the paper tube returns to its original position. After the slotting is completed, the center of the paper tube is located at the center position of the support frame. The first conveyor and the second conveyor move. The support frame of the first conveyor and the support frame of the second conveyor jointly convey the slotted paper tube.

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