A slitter paper feeding device

Abstract

The present application relates to paper processing technical field, specifically to a kind of paper feeding device of slitting machine, two mutually parallel side plates are sequentially installed with feed module, guide roller group, deviation rectifying module, adsorption module and feed roller group according to the direction of paper movement between them, feed roller group is driven by fourth motor, second detection module is installed between deviation rectifying module and adsorption module;Adsorption module includes box body fixedly installed between two side plates, several supporting rollers are rotationally installed in linear array in the box body, the top of box body is provided with the notch corresponding to supporting roller, the top of supporting roller passes through notch and is flush with the top of box body, the box body is connected with the air inlet end of fan by air pipe, several pressure roller modules are linearly arrayed and installed on each side plate, and the wheel body of pressure roller module is located above the box body.The present application can ensure that paper does not deviate before slitting.

Description

TECHNICAL FIELD

[0001] The present application relates to the paper processing technical field, specifically to a paper feeding device of a slitting machine. BACKGROUND

[0002] With the rapid development of packaging and printing industry, the stability and precision of the paper feeding device of the slitting machine directly affect the slitting efficiency and product quality. The paper feeding device is mainly used for stably conveying the raw paper to the cutting knife according to the set tension. The existing paper feeding device only relies on the tension of the raw paper to keep the paper running stable before the end to the cutting knife. Once the paper deviates at this position, it cannot be corrected, resulting in unqualified product quality. SUMMARY

[0003] In order to solve the defects in the prior art, the present application provides a paper feeding device of a slitting machine, which is realized by the following technical scheme:

[0004] A paper feeding device of a slitting machine, comprising two mutually parallel side plates, a feeding module, a guide roller group, a correction module, an adsorption module and a feeding roller group are sequentially installed between the two side plates according to the direction of paper movement, the feeding roller group is driven by a fourth motor, and a second detection module is installed between the correction module and the adsorption module; the adsorption module comprises a box body fixedly installed between the two side plates, a plurality of supporting rollers are linearly arrayed and rotatably installed inside the box body, a slot corresponding to each supporting roller is arranged on the top of the box body, the top of each supporting roller passes through the slot and is flush with the top of the box body, and the box body is connected with the air inlet end of a fan through an air pipe; a plurality of pressure roller modules are linearly arrayed and distributed on each side plate, and the wheel body of the pressure roller module is located above the box body and used for pressing the paper.

[0005] The pressure roller module comprises a C-shaped frame, a vertical guide sleeve is fixedly installed in the C-shaped frame, a slide rod capable of moving up and down is installed in the guide sleeve, a limiting cylinder matched with the guide sleeve is fixedly installed on the top of the C-shaped frame, the top of the slide rod extends into the limiting cylinder and is provided with a rotating adjusting piece, a first notch and a second notch matched with the adjusting piece are formed in the top of the limiting cylinder, and the depth of the second notch is greater than that of the first notch, a wheel body is installed on the bottom of the slide rod through a wheel bracket, and a spring is further sleeved on the slide rod, and the spring is located between the wheel bracket and the C-shaped frame. By placing the adjusting piece in the first notch or the second notch, the height of the wheel body is adjusted.

[0006] Two guide grooves are formed in the side wall of the slide rod, and a guide block slidably matched with the guide groove is fixedly installed in the guide sleeve.

[0007] The feeding module comprises an air inflation shaft detachably mounted on the first linear movement pair at two ends, and one end of the air inflation shaft is connected with the magnetic reducer through a shaft coupling.

[0008] A fourth linear movement pair for taking and placing the air inflation shaft is mounted on one side of the first linear movement pair, a liftable lifting plate is mounted on the first slider of the fourth linear movement pair, and lifting arms are arranged at two ends of the lifting plate.

[0009] The material guiding roller group comprises a brake roller rotatably mounted between two side plates, a first guide roller, a first fixed roller, a second fixed roller, a third fixed roller and a second guide roller; the first guide roller, the first fixed roller, the second fixed roller and the third fixed roller are located in the same horizontal plane and are parallel to each other; the brake roller is located between the feeding module and the first guide roller; lifting rollers are mounted between the first fixed roller and the second fixed roller and between the second fixed roller and the third fixed roller; two ends of the lifting rollers are mounted on corresponding second linear movement pairs; and the second linear movement pairs are mounted on the side plates.

[0010] A first detection module is further mounted between the first guide roller and the first fixed roller.

[0011] The first detection module comprises a cross bar mounted between the two side plates and having a special-shaped cross section, and two mirror image arranged light barrier sensors are mounted on the cross bar.

[0012] The material conveying roller group comprises a fixed roller rotatably mounted between two side plates, and a movable roller liftable mounted above the fixed roller; the fixed roller and the movable roller are drivenly connected with a fourth motor; and a fifth linear movement pair for lifting the movable roller is mounted on the side plate.

[0013] A second pulley is mounted at a first end of the movable roller, a third pulley is mounted at a first end of the fixed roller, a second electric cylinder is further mounted on the side plate, a fourth pulley is mounted on an output end of the second electric cylinder through a tension sensor, and the fourth pulley, the second pulley and the third pulley are connected through a second belt.

[0014] The technical scheme has the following advantages:

[0015] The automatic deviation correction and accurate positioning of the feeding module are realized by driving the air inflation shaft to move along the axial direction through the first linear movement pair, cooperating with the magnetic reducer and the lifting mechanism, and realizing the automatic centering and vertical lifting positioning of the raw paper roll, so that the problems of low efficiency and large error caused by traditional manual adjustment are solved, the initial position accuracy of the unwinding is improved, and the subsequent deviation correction burden is reduced.

[0016] The multi-stage tension dynamic adjustment and emergency storage function of the material guide roller group adopts the structure of the first lifting roller combined with the second lifting roller and the second linear movement pair, the lifting height is adjusted through the servo motor driving screw, different tension requirements can be adapted in real time, the lifting roller can quickly drop to the lowest position to form a temporary warehouse during emergency shutdown, paper breakage or wrinkles caused by sudden tension change are avoided, and the fault tolerance of the equipment is improved.

[0017] The negative pressure stability and pressure wheel rapid adjustment design of the adsorption module, the linear array distribution of the supporting roller in the box body cooperates with the notch structure, uniform negative pressure adsorption of paper is generated through the fan, the pressure wheel module adopts the spring type slide rod structure of the limiting cylinder and the adjusting piece, the pressing height can be switched by rotating the handle, the spring pre-tightening force ensures the consistency of the pressing, and the transverse offset of the paper in high-speed conveying is reduced by more than 60%.

[0018] The cooperative optimization of the detection-rectification closed-loop control system, the first detection module and the second detection module adopt the real-time monitoring of the paper edge position through the reflection sensor, the bidirectional linear movement pair of the rectification roller and the spline shaft transmission are combined to realize the rapid response of rectification; the controller dynamically adjusts the position of the air inflation shaft and the offset amount of the rectification roller according to the detection data to form a closed-loop feedback control.

[0019] Modular integration and automatic operation and maintenance, each functional module is independently installed between the two side plates, supporting quick disassembly and maintenance; through centralized control of servo motors, oil cylinders and sensors, full-process automation from unwinding to slitting is realized, manual intervention is reduced, and the overall efficiency is greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the drawings needed in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0021] Figure 1 Structure diagram of the present application Figure One ;

[0022] Figure 2 Structure diagram of the present application Figure Two ;

[0023] Figure 3 Structure diagram of the present application Figure Three ;

[0024] Figure 4 Internal structure diagram of the present application

[0025] Figure 5 Structure diagram of the material feeding module

[0026] Figure 6 is a structural schematic view of the first detection module;

[0027] Figure 7 is a structural schematic view of the first detection module; Figure 6 is a structural schematic view of the first detection module;

[0028] Figure 8 is a structural schematic view of the second linear movement pair;

[0029] Figure 9 is a structural schematic view of the deviation rectifying module;

[0030] Figure 10 is a structural schematic view of the deviation rectifying module; Figure 9 is a structural schematic view of the deviation rectifying module;

[0031] Figure 11 is a structural schematic view of the pressure roller module;

[0032] Figure 12 is a structural schematic view of the limiting cylinder;

[0033] Figure 13 is a schematic view of the cooperation between the sliding rod and the vertical rod;

[0034] Figure 14 is a structural schematic view of the adsorption module;

[0035] Figure 15 is a structural schematic view of the adsorption module; Figure 2 is a structural schematic view of the adsorption module.

[0036] In the figure, 1-discharging module, 101-gas expansion shaft, 102-guide column, 103-lifting plate, 104-lifting arm, 105-first oil cylinder, 106-first sliding block, 107-first seat plate, 108-first motor, 109-first lead screw, 110-first guide rail, 111-second sliding block, 112-first bearing seat, 113-second guide rail, 114-second oil cylinder, 115-first bearing, 116-side frame, 117-magnetic reducer;

[0037] 2-side plate;

[0038] 3-first detection module, 301-cross rod, 302-sliding seat, 303-reflective sensor, 304-top screw,

[0039] 4-Guide roller assembly, 401-Second linear moving pair, 402-Brake roller, 403-First guide roller, 404-First fixed roller, 405-First lifting roller, 406-Second fixed roller, 407-Third fixed roller, 408-Second lifting roller, 409-Second guide roller, 410-Top plate, 411-Guard frame, 412-First pulley, 413-Second motor, 414-Third guide rail, 415-Second lead screw, 416-First connecting block, 417-Second bearing seat, 418-Base plate;

[0040] 5-Second detection module;

[0041] 6-Correction module, 601-Correction roller, 602-Third bearing housing, 603-Spline shaft, 604-Third linear sliding pair, 605-Fourth bearing housing, 606-Third slider, 607-Fourth guide rail, 608-Third motor, 609-Third lead screw, 610-Second plate holder;

[0042] 7-Pressure roller module, 701-Stud, 702-Nut, 703-C-frame, 704-Adjusting component, 705-Limiting cylinder, 706-Guide sleeve, 707-Slide rod, 708-Spring, 709-Wheel frame, 710-Wheel body, 711-First notch, 712-Second notch, 713-Guide groove, 714-Vertical rod, 715-Handle;

[0043] 8-Adsorption module, 801-Fan, 802-Third guide roller, 803-Baffle, 804-Support roller, 805-Groove, 806-Air duct, 807-Box;

[0044] 9-Feeding roller assembly, 901-Stationary roller, 902-Moving roller, 903-Drive module, 904-First electric cylinder, 905-Fifth guide rail, 906-Fifth bearing housing, 907-Second pulley, 908-Fourth motor, 909-Second belt, 910-Fourth pulley, 911-Second electric cylinder. Detailed Implementation

[0045] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0046] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the module or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0047] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0048] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0049] As attached Figure 1 To be continued Figure 3 As shown, the present invention provides a paper feeding device for a slitting machine, including two parallel side plates 2. The side plates 2 can be fixedly installed on the ground, or a metal base can be provided to install the side plates 2 on the base.

[0050] The paper feeding device of the slitting machine, from the first end to the second end, includes, in sequence, a feeding module 1, a guide roller group 4, a correction module 6, an adsorption module 8, and a conveying roller group 9. Among them, the feeding module 1 is used to place the raw paper roll, the guide roller group 4 is used to tension and guide the paper, the correction module 6 is used to correct the paper's deviation and ensure that the paper enters the adsorption module 8 as required, the adsorption module 8 can generate a certain negative pressure to ensure that the paper does not deviate during operation, and the conveying roller group 9 is used to provide power for the paper to move forward.

[0051] It also includes a first detection module 3, a second detection module 5 and a pressure roller module 7, wherein the first detection module 3 and the second detection module 5 have the same structure.

[0052] The first detection module 3 is installed at the guide roller group 4 to detect the paper offset at the guide roller group 4.

[0053] The second detection module 5 is installed between the adsorption module 8 and the correction module 6, and is used to detect the offset of the paper when it enters the adsorption module 8.

[0054] The pressure roller module 7 is installed above the adsorption module 8 to work with the adsorption module 8 to maintain the paper's posture.

[0055] All of the above modules are installed between the two side plates 2.

[0056] The structure of feeding module 1 is shown in the attached figure. Figure 5 As shown, it includes an air shaft 101, and two ends of the air shaft 101 are equipped with first bearings 115. These two first bearings 115 can be detachably installed on the corresponding first bearing seats 112. The detachable connection method between the first bearing seats 112 and the first bearings 115 is existing technology and will not be described in detail.

[0057] One of the first bearing housings 112 is also equipped with a magnetic reducer 117 via a side frame 116, which is connected to the air shaft 101 via a first coupling.

[0058] The two first bearing seats 112 are respectively fixed to the corresponding first linear sliding pairs by bolts. Therefore, the air shaft 101 can move back and forth along its own axis under the drive of the two first linear sliding pairs, ensuring that the paper is always in the middle position and can correct deviation to a certain extent.

[0059] The first linear sliding pair includes a first base plate 107, on which a first lead screw 109 driven by a first motor 108 is mounted. A first nut slider is mounted on the first lead screw 109. The first nut slider is fixedly connected to the middle position of the bottom of a second slider 111. The two ends of the second slider 111 are respectively slidably engaged with the corresponding first guide rail 110.

[0060] The first bearing housing 112 is mounted on the second slider 111.

[0061] The first base plate 107 is fixed to the ground.

[0062] After the two ends of the air shaft 101 containing the raw paper are fixed, the controller will control the two first linear moving pairs to make the middle position of the air shaft 101 and the middle position of the entire device be on the same straight line.

[0063] A fourth linear sliding pair is installed on one side of the first linear sliding pair. The fourth linear sliding pair places the air shaft 101 into position via the lifting plate 103. In this embodiment, the fourth linear sliding pair is installed on the side of the first linear sliding pair near the guide roller group 4.

[0064] A second hydraulic cylinder 114 and several guide posts 102 are fixedly installed on the top of the first slider 106 of the fourth linear sliding pair. The aforementioned lifting plate 103 is slidably engaged with the guide posts 102. The output end of the second hydraulic cylinder 114 is vertically upward and fixedly connected to the bottom of the lifting plate 103, thereby pushing the lifting plate 103 to slide up and down along the guide posts 102.

[0065] Lifting arms 104 are provided at both ends of the lifting plate 103, which can support the air shaft 101.

[0066] The two ends of the aforementioned first slider 106 are respectively in sliding engagement with the corresponding second guide rail 113.

[0067] The first slider 106 is also fixedly connected to the output end of the horizontal first hydraulic cylinder 105, which is fixed to the ground by a cylinder seat.

[0068] After the trolley transports the air shaft 101 containing the raw paper to the designated position, the piston of the first hydraulic cylinder 105 extends, moving the lifting arm 104 below the air shaft 101. Then, the output end of the second hydraulic cylinder 114 extends, lifting the air shaft 101. Then, the first hydraulic cylinder 105 reverses its action, moving the air shaft 101 to the first linear moving pair. The second hydraulic cylinder 114 reverses its action, placing the air shaft 101 between the two first bearing seats 112. Then, the air shaft 101 is fixed.

[0069] The structure of guide roller group 4 is shown in the attached figure. Figure 2 and attached Figure 4 As shown, it includes a brake roller 402, a first guide roller 403, a first fixed roller 404, a second fixed roller 406, a third fixed roller 407, and a second guide roller 409, which are rotatably mounted between two side plates 2; wherein the first guide roller 403, the first fixed roller 404, the second fixed roller 406, and the third fixed roller 407 are located in the same horizontal plane and are parallel to each other.

[0070] The brake roller 402 is located between the feeding module 1 and the first guide roller 403 in the vertical direction, and between the first guide roller 403 and the first fixed roller 404 in the horizontal direction.

[0071] A first lifting roller 405 is installed between the first fixed roller 404 and the second fixed roller 406, and a second lifting roller 408 is installed between the second fixed roller 406 and the third fixed roller 407. The first lifting roller 405 and the second lifting roller 408 can be driven by the corresponding second linear sliding pair 401 installed on the side plate 2 to achieve up and down movement.

[0072] The aforementioned second linear sliding pair 401 is fixedly installed on the outside of the side plate 2, that is, on the side where the two side plates 2 are far apart from each other.

[0073] The side plate 2 has clearance holes corresponding to the first lifting roller 405 and the second lifting roller 408, respectively, to ensure the smooth lifting and lowering adjustment of the first lifting roller 405 and the second lifting roller 408.

[0074] The second guide roller 409 is located between the third fixed roller 407 and the correction module 6 in the vertical direction, and also between the third fixed roller 407 and the correction module 6 in the horizontal direction. The paper moves vertically from the third fixed roller 407 to the second guide roller 409, and also vertically from the second guide roller 409 to the correction module 6. That is, after being guided by the second guide roller 409, the paper remains horizontal until it reaches the feed roller group 9.

[0075] The structure of the second linear sliding joint 401 is shown in the attached figure. Figure 8 As shown, it includes a top plate 410 and a bottom plate 418 fixedly installed on the side plate 2. Two parallel third guide rails 414 and a rotatable second lead screw 415 are fixedly installed between the bottom plate 418 and the top plate 410.

[0076] A second bearing seat 417 is slidably installed between the two third guide rails 414; under the limitation of the two third guide rails 414, the second bearing seat 417 can only move in the vertical direction, and the second bearing seat 417 is used for the installation of the first lifting roller 405 or the second lifting roller 408.

[0077] A first connecting block 416 is also fixedly installed on the second bearing housing 417. The first connecting block 416 is connected to the second lead screw 415 through the second nut slider.

[0078] The top of the second lead screw 415 passes through the top plate 410 and is fixedly installed with the first pulley 412.

[0079] The first pulleys 412 of the two second linear moving pairs 401 located at both ends of the first lifting roller 405 are connected by a first belt, and the second lead screw 415 of one of the second linear moving pairs 401 is connected to the second motor 413 by a coupling.

[0080] The top of the aforementioned top plate 410 is equipped with a protective frame 411 for protecting the first pulley 412, and the second motor 413 is installed on the top of the protective frame 411.

[0081] The first pulleys 412 of the two second linear moving pairs 401 located at both ends of the second lifting roller 408 are connected by a third belt, and the second lead screw 415 of one of the second linear moving pairs 401 is connected to the second motor 413 by a coupling.

[0082] The controller is electrically connected to the second motor 413, thereby controlling the height of the first lifting roller 405 and the second lifting roller 408. This can adjust the paper tension and, in case of an emergency, lower the height of the first lifting roller 405 and the second lifting roller 408 to the lowest level to form a temporary storage tank to store a certain amount of paper. This is convenient to use and can also prevent paper damage.

[0083] The aforementioned first detection module 3 is installed between the first guide roller 403 and the first fixed roller 404, and its structure is shown in the attached figure. Figure 6 and attached Figure 7 As shown, it includes a crossbar 301 with an irregular cross-section, and the two ends of the crossbar 301 are connected to the corresponding side plates 2 through flanges.

[0084] Two through-beam sensors 303 are slidably mounted on the crossbar 301, and these two through-beam sensors 303 are arranged in a mirror image. Specifically, the through-beam sensors 303 are fixed to the slide block 302 by bolts, and the slide block 302 is slidably engaged with the crossbar 301. The slide block 302 is also equipped with a set screw 304. When the set screw 304 is tightened, the positioning of the through-beam sensors 303 is completed.

[0085] The two sides of the paper pass through two through-beam sensors 303 respectively, and the controller determines whether correction is needed based on the number of beams blocked by the paper.

[0086] The aforementioned second detection module 5 is installed between the correction module 6 and the adsorption module 8. The structure of the second detection module 5 is the same as that of the first detection module 3.

[0087] The structure of correction module 6 is shown in the attached figure. Figure 9 and attached Figure 10 As shown, the device includes a correction roller 601, both ends of which are rotatably engaged with corresponding third bearing seats 602. The third bearing seats 602 are fixedly mounted on the ground by bolts. Specifically, a splined shaft 603 is fixedly mounted at both ends of the correction roller 601. The inner ring of the third bearing in the third bearing seat 602 is provided with a splined sleeve that mates with the splined shaft 603. The free end of the splined shaft 603 has a smooth part, on which a fourth bearing is fixedly mounted. The fourth bearing is fixedly mounted on the third linear sliding pair 604.

[0088] The third linear motion pair 604 includes two fourth guide rails 607 mounted on the top of the second plate base 610 and a third lead screw 609 driven by a third motor 608. A third slider 606 is slidably mounted between the two fourth guide rails 607. A fourth bearing seat 605 is fixedly mounted on the top of the third slider 606, and a fourth bearing is mounted on the fourth bearing seat 605.

[0089] One end of the correction roller 601 is connected to the correction motor (not shown) via a coupling.

[0090] The paper is corrected by moving the correction roller 601 along its axis via two third linear moving pairs 604. When the second detection module 5 detects paper deviation, the controller activates the third linear moving pairs 604 to perform correction.

[0091] The structure of adsorption module 8 is shown in the attached figure. Figure 3 and attached Figure 14 As shown, the device includes a housing 807 fixedly installed between two side plates 2. Inside the housing 807, several support rollers 804 are rotatably installed in a linear array. The axial direction of the support rollers 804 is consistent with the width direction between the two side plates 2.

[0092] The top of the box 807 is provided with slots 805 that correspond one-to-one with the support rollers 804. The top of the support rollers 804 passes through the slots 805 and is flush with the top of the box 807. The length of the slots 805 is less than or equal to the width of the paper.

[0093] The top of the housing 807 is flush with the top of the straightening roller 601.

[0094] The housing 807 is connected to the air inlet of the fan 801 via the air duct 806.

[0095] Both sides of the top of the housing 807 are fixedly installed with baffles 803.

[0096] As the paper passes over the top of the box 807, the fan 801 starts. Because the paper covers the slot 805, a certain negative pressure is generated inside the box 807, which restricts the shaking of the paper and keeps the paper moving straight forward.

[0097] The adsorption module 8 also includes a third guide roller 802, which is located between the second detection module 5 and the housing 807 and is used to support the paper.

[0098] The pressure roller module 7 is mounted on the side plate 2, and its structure is shown in the attached figure. Figure 11 and attached Figure 12 As shown, the device includes a C-shaped frame 703, within which a vertical guide sleeve 706 is fixedly installed. A sliding rod 707 capable of vertical movement is installed within the guide sleeve 706. A limiting cylinder 705 is fixedly installed at the top of the C-shaped frame 703, with its axis coinciding with the axis of the guide sleeve 706. The top of the sliding rod 707 extends into the limiting cylinder 705 and is fitted with a rotatable adjusting member 704. The top of the limiting cylinder 705 has a first notch 711 and a second notch 712 that match the adjusting member 704, with the depth of the second notch 712 greater than the depth of the first notch 711. The adjusting member 704, positioned between the first notch 711 and the second notch 712, can adjust the height of the bottom of the sliding rod 707.

[0099] A wheel frame 709 is fixedly installed at the bottom of the slide bar 707, and a wheel body 710 is installed on the wheel frame 709. The wheel body 710 is located above the housing 807.

[0100] A spring 708 is also fitted on the slide bar 707. The spring 708 is located between the wheel frame 709 and the C-shaped frame 703, that is, the two ends of the spring 708 abut against the wheel frame 709 and the C-shaped frame 703 respectively.

[0101] The structure of slide bar 707 is shown in the attached figure. Figure 13 As shown, two guide grooves 713 are provided on its side wall, and a guide block that slides in cooperation with the guide grooves 713 is fixed inside the guide sleeve 706.

[0102] The adjusting member 704 includes a vertical rod 714 whose bottom is rotatably connected to the top of the slide rod 707. The rotatable connection can be made using existing technologies such as bearings. A handle 715 is fixedly installed on the top of the vertical rod 714. The top of the handle 715 engages with a first notch 711 or a second notch 712.

[0103] When it is necessary to hold down the paper, the lever 715 is placed in the second notch 712. When it is necessary to change the paper, the lever 715 is placed in the first notch 711, which raises the wheel 710 to facilitate paper replacement.

[0104] Two studs 701 are fixedly installed on the C-shaped frame 703. The studs 701 penetrate the side plate 2 and are fixed by nuts 702. There are two nuts 702, located on both sides of the side plate 2 respectively.

[0105] In this embodiment, there are several pressure roller modules 7, which are evenly divided into two rows. Each of the two side plates 2 is equipped with one row, and the pressure roller modules 7 in each row are arranged in a linear array.

[0106] The structure of the aforementioned feed roller group 9 is shown in the attached figure. Figure 1 Appendix Figure 2 and attached Figure 15 As shown, it includes a fixed roller 901 rotatably mounted between two side plates 2, and a movable roller 902 that can be raised and lowered mounted directly above the fixed roller 901. Both the fixed roller 901 and the movable roller 902 are driven and connected to the fourth motor 908 of the drive module 903.

[0107] A fifth linear sliding pair for lifting the moving roller 902 is installed on the side plate 2. The fifth linear sliding pair is installed on the outside of the side plate 2, that is, on the side where the two side plates 2 are far apart from each other.

[0108] The fifth linear motion pair includes a fifth guide rail 905 fixedly mounted on the side plate 2 and a first electric cylinder 904. A fifth bearing seat 906 is slidably mounted on the fifth guide rail 905, and both ends of the moving roller 902 are rotatably engaged with the corresponding fifth bearing seats 906. The output end of the first electric cylinder 904 is fixedly connected to the top of the fifth bearing seat 906. Therefore, the first electric cylinder 904 can drive the fifth bearing seat 906 to move vertically along the fifth guide rail 905, thereby adjusting the position of the moving roller 902.

[0109] The first end of the moving roller 902 passes through the corresponding fifth bearing seat 906 and is fitted with a second pulley 907. The first end of the fixed roller 901 is fitted with a third pulley, and the second pulley 907 is located directly above the third pulley. The second pulley 907 and the third pulley are connected by a second belt 909.

[0110] A tensioning structure for tensioning the second belt 909 is also installed on the side plate 2. This tensioning structure includes a second electric cylinder 911 fixedly mounted on the side plate 2. The second electric cylinder 911 is horizontally positioned, and its output end is connected to a fourth pulley 910 via a tension sensor. The fourth pulley 910, the second pulley 907, and the third pulley are connected via the second belt 909. The controller compares the data from the tension sensor with a preset value to control the extension of the output end of the second electric cylinder 911, thereby controlling the tension of the second belt 909.

[0111] In this embodiment, all motors are preferably servo motors, all pulleys are preferably synchronous pulleys, and all belts are preferably synchronous belts.

[0112] In this embodiment, all motors, sensors, hydraulic cylinders, magnetic reducers 117, etc. are controlled by the controller to improve the automation of the entire device.

[0113] Before use, place the air shaft 101 loaded with raw paper into position using the lifting arm 104, and then limit the air shaft 101. Lift the wheel body 710 and the moving roller 902. (See attached...) Figure 4 As shown, the paper is guided past brake roller 402, first guide roller 403, first fixed roller 404, first lifting roller 405, second fixed roller 406, third fixed roller 407, second lifting roller 408, and second guide roller 409 in sequence, and then passes through second detection module 5, adsorption module 8, and feed roller group 9 in sequence, finally reaching the cutting blade. Then the wheel 710 and moving roller 902 are lowered. The fourth motor 908 is started, and the paper begins to be automatically fed.

[0114] During the conveying process, the second detection module 5 and the first detection module 3 monitor the paper offset in real time and correct the offset by adjusting the air shaft 101 and the correction roller 601.

[0115] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A paper feeding device for a slitting machine, characterized in that, The device includes two parallel side plates (2). Between the two side plates (2), in the direction of paper movement, are sequentially installed a feeding module (1), a guide roller group (4), a correction module (6), an adsorption module (8), and a feed roller group (9). The feed roller group (9) is driven by a fourth motor (908). A second detection module (5) is installed between the correction module (6) and the adsorption module (8). The adsorption module (8) includes a housing (807) fixedly installed between the two side plates (2). The housing (807) has a linear array of rotating housings inside. The box (807) is equipped with several support rollers (804). The top of the box (807) is provided with slots (805) that correspond one-to-one with the support rollers (804). The top of the support rollers (804) passes through the slots (805) and is flush with the top of the box (807). The box (807) is connected to the air inlet of the fan (801) through the air duct (806). Each side plate (2) is equipped with several pressure roller modules (7) arranged in a linear array. The wheel body (710) of the pressure roller module (7) is located above the box (807) and is used to press the paper. The pressure roller module (7) includes a C-shaped frame (703), a vertical guide sleeve (706) is fixedly installed inside the C-shaped frame (703), a slide rod (707) that can move up and down is installed inside the guide sleeve (706), a limiting cylinder (705) that matches the guide sleeve (706) is fixedly installed on the top of the C-shaped frame (703), the top of the slide rod (707) extends into the limiting cylinder (705) and is equipped with a rotatable adjusting member (704), and the top of the limiting cylinder (705) is provided with a part that matches the adjusting member (704). The first notch (711) and the second notch (712) are matched, and the depth of the second notch (712) is greater than the depth of the first notch (711). The bottom of the slide rod (707) is equipped with a wheel body (710) through the wheel frame (709). A spring (708) is also sleeved on the slide rod (707). The spring (708) is located between the wheel frame (709) and the C-shaped frame (703). The height of the wheel body (710) is adjusted by placing the adjusting member (704) in the first notch (711) or the second notch (712). Two guide grooves (713) are provided on the side wall of the slide rod (707), and a guide block that slides in cooperation with the guide grooves (713) is fixed inside the guide sleeve (706); The conveying roller assembly (9) includes a fixed roller (901) rotatably mounted between two side plates (2), and a movable roller (902) capable of lifting is mounted directly above the fixed roller (901). Both the fixed roller (901) and the movable roller (902) are driven and connected to a fourth motor (908). A fifth linear sliding pair for lifting the movable roller (902) is mounted on the side plate (2). The second detection module (5) is used to detect the offset of the paper when it enters the adsorption module (8); The correction module (6) includes a correction roller (601). The axial direction of the support roller (804) is consistent with the width direction between the two side plates (2); The top of the housing (807) is flush with the top of the straightening roller (601); The adjusting member (704) includes a vertical rod (714) whose bottom is rotatably connected to the top of the slide rod (707); a handle (715) is fixedly installed on the top of the vertical rod (714), and the top of the handle (715) cooperates with a first notch (711) or a second notch (712); When it is necessary to press down the paper, the lever (715) is placed in the second notch (712). When it is necessary to replace the paper, the lever (715) is placed in the first notch (711) to raise the wheel (710) for easy paper replacement.

2. The paper feeding device for the slitting machine according to claim 1, characterized in that, The feeding module (1) includes an air shaft (101) with both ends detachably mounted on a first linear sliding pair. One end of the air shaft (101) is connected to a magnetic reducer (117) via a coupling.

3. The paper feeding device for the slitting machine according to claim 2, characterized in that, A fourth linear sliding pair for picking up and placing the air shaft (101) is installed on one side of the first linear sliding pair. A lifting plate (103) that can be raised and lowered is installed on the top of the first slider (106) of the fourth linear sliding pair. Lifting arms (104) are provided at both ends of the lifting plate (103).

4. The paper feeding device for the slitting machine according to claim 1, characterized in that, The guide roller assembly (4) includes a brake roller (402), a first guide roller (403), a first fixed roller (404), a second fixed roller (406), a third fixed roller (407), and a second guide roller (409) rotatably mounted between two side plates (2). The first guide roller (403), the first fixed roller (404), the second fixed roller (406), and the third fixed roller (407) are located in the same horizontal plane and are parallel to each other. The brake roller (402) is located between the feeding module (1) and the first guide roller (403). Lifting rollers are installed between the first fixed roller (404), the second fixed roller (406), and between the second fixed roller (406) and the third fixed roller (407). Both ends of the lifting roller are mounted on the corresponding second linear sliding pair (401), and the second linear sliding pair (401) is mounted on the side plate (2).

5. The paper feeding device for a slitting machine according to claim 4, characterized in that, A first detection module (3) is also installed between the first guide roller (403) and the first fixed roller (404).

6. The paper feeding device for a slitting machine according to claim 5, characterized in that, The first detection module (3) includes a crossbar (301) installed between two side plates (2) with an irregular cross-section, and two through-beam sensors (303) are installed on the crossbar (301) in a mirror arrangement.

7. The paper feeding device for a slitting machine according to claim 1, characterized in that, The first end of the moving roller (902) is equipped with a second pulley (907), the first end of the fixed roller (901) is equipped with a third pulley, and a second electric cylinder (911) is also installed on the side plate (2). The output end of the second electric cylinder (911) is equipped with a fourth pulley (910) through a tension sensor. The fourth pulley (910), the second pulley (907) and the third pulley are connected by a second belt (909).

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