Paper conveying side aligning mechanism of paper feeding machine of die-cutting machine

Abstract

The utility model discloses a paper conveying side aligning mechanism of a paper feeding machine of a die-cutting machine. The paper conveying side aligning mechanism comprises two wallboards which are opposite left and right, a paper conveying assembly and a side aligning assembly, wherein the paper conveying assembly and the side aligning assembly are installed between the two wallboards. The side patting and aligning assembly comprises a gap bridge unit, a power unit and a patting and aligning unit. The patting and aligning unit comprises two patting and aligning plates, two patting and aligning sliding plates symmetrically mounted on the bottom surfaces of the corresponding patting and aligning plates, two bearing fixing plates symmetrically mounted on the bottom surfaces of the corresponding patting and aligning sliding plates, two sliding blocks symmetrically mounted on the front sides of the corresponding bearing fixing plates, and two sliding rails symmetrically mounted on the front sides of the corresponding sliding blocks; the two track idler wheels are symmetrically installed on the bottom faces of the corresponding bearing fixing plates, and the two end face cams are symmetrically installed on the cam shaft. The inner ends of the two beating sliding plates are connected with the corresponding sides of the vertical plates through corresponding reset springs respectively. Contour curves are arranged on the inner end faces of the two end face cams, and the track idler wheel can move along the contour curves, so that paper can be accurately positioned left and right.

Description

TECHNICAL FIELD

[0001] The utility model relates to a paper feeding mechanism of die cutting machine belongs to die cutting machine paper feeding mechanism technical field. BACKGROUND

[0002] At present, the paper feeding mechanism of die cutting machine is widely used in packaging, printing and other industries, and the working process mainly involves paper conveying and positioning, and subsequent die cutting. Specifically speaking: (1) paper conveying: the paper feeder conveys the paper to the front gauge and the side gauge for preliminary positioning through the paper feeding part; (2) secondary positioning: the paper is then sent to the die cutting mechanism by the tooth row for secondary positioning to ensure the accuracy of die cutting; (3) die cutting process: in the die cutting mechanism, the paperboard or corrugated paper is cut into a specific shape by using die cutting knives, steel knives, hardware molds and the like through the printing plate to apply a certain pressure; (4) subsequent processing: after die cutting is completed, the paper is conveyed to the waste disposal mechanism by the tooth row to remove the unnecessary part, and then enters the paper receiving part to complete the whole die cutting operation.

[0003] Especially, the conveying side alignment mechanism of the paper feeding mechanism of die cutting machine is responsible for paper conveying and alignment, and its performance and accuracy directly affect the quality and production efficiency of the die cutting product. However, the conveying side alignment mechanism on the market has the following technical defects: (a) complex structure: the structure is relatively complex, which increases the difficulty of operation and maintenance; (b) loud noise: the noise is significant during operation; (c) time-consuming debugging: the operator needs to debug by experience, which wastes time; (d) high labor intensity: the labor intensity of the operator is increased; (e) low production efficiency: the complicated debugging and operation reduce the production efficiency.

[0004] Therefore, it is urgent to develop a new paper feeding mechanism of die cutting machine. SUMMARY

[0005] In view of the above existing technical problems, the utility model provides a paper feeding mechanism of die cutting machine to realize the technical purpose of simplifying the structure, improving the debugging efficiency, reducing the operation labor intensity and improving the production efficiency.

[0006] To achieve the above technical purpose, the utility model provides a paper feeding mechanism of die cutting machine, which comprises two wallboards opposite to each other, a paper conveying assembly installed between the two wallboards, and a side alignment assembly located in front of the paper conveying assembly; the side alignment assembly comprises a bridge unit, a power unit and an alignment unit;

[0007] The bridge unit comprises a front baffle installed between the two wallboards and front and rear support shafts located behind the front baffle; the top surface of the front and rear support shafts is provided with a base plate in the middle; the bottom surface of the base plate is provided with a vertical plate in the middle; the top surface of the front and rear support shafts is movably provided with a plurality of bridge plates on both sides;

[0008] The power unit comprises a camshaft installed between the two wallboards and below the front and rear support shaft gaps, and a driving shaft behind the camshaft, wherein a driving shaft sprocket is installed on the driving shaft, a camshaft sprocket is installed on the camshaft, and a chain is sleeved on the driving shaft sprocket and the camshaft sprocket.

[0009] The aligning unit comprises two aligning plates symmetrically above the front and rear support shafts, two aligning slides symmetrically below the front and rear support shaft gaps and installed on the bottom surfaces of the corresponding aligning plates, two bearing fixing plates symmetrically installed on the bottom surfaces of the corresponding aligning slides, two sliders symmetrically installed on the front sides of the corresponding bearing fixing plates, two slide rails symmetrically installed on the front sides of the corresponding sliders, two track rollers symmetrically installed on the bottom surfaces of the corresponding bearing fixing plates, and two end face cams symmetrically installed on the camshaft.

[0010] The paper feeding assembly further comprises a paper pressing frame installed between the two wallboards, a supporting plate below the paper pressing frame, and a driven roller and a driving roller respectively located in front of and behind the supporting plate.

[0011] The paper pressing frame rear side is provided with a paper pressing frame mounting shaft, and the two sides of the paper pressing frame mounting shaft are respectively provided with lifting cylinders.

[0012] The paper feeding assembly further comprises a paper feeding belt tensioning shaft installed between the two wallboards and between the supporting plate and the lower layer of the paper feeding belt, a plurality of paper feeding belt bearings and paper feeding belt tensioning blocks alternately installed on the paper feeding belt tensioning shaft, and a plurality of paper feeding belt tensioning wheels installed on the front end sides of the paper feeding belt tensioning blocks.

[0013] The aligning unit further comprises two stop cylinders respectively arranged on the outer sides of the two bearing fixing plates.

[0014] The utility model further, power unit still includes the chain tensioning wheel of installing on the wallboard inner wall, the top surface of chain tensioning wheel close chain upper layer.

[0015] The utility model further, the bridge unit still includes two bridge belt bearings of symmetry installation on the front support shaft, two bridge belt tensioning wheels of installing on the inner wall of front baffle and two bridge belts, two bridge belt bearings are located two sides of base plate respectively, two bridge belt tensioning wheels are located below corresponding bridge belt bearing respectively, the upper layer of two bridge belts passes through the above of front and rear support shaft and the front of front baffle and is respectively installed in corresponding bridge belt bearing and bridge belt tensioning wheel and driven roller.

[0016] In conclusion, the utility model is a mechanism in paper feeding machine of die cutting machine, when the front end of paper reaches the conveying assembly, through the operation of end face cam driven by servo motor, the track roller is pressed to displace horizontally to the center, drives left and right alignment plate to slide horizontally to the center, so that the paper is aligned to the center of paper, realizes the accurate positioning of paper, has the advantages of high-precision paper feeding, paper fast adjustment, high production efficiency and low noise.

[0017] Compared with the prior art, the utility model has the following technical advantages:

[0018] 1. High-precision paper feeding: the power unit of the paper feeding side alignment mechanism adopts a servo motor in the servo conveying mechanism, which controls the paper feeding side rowing mechanism and the servo conveying mechanism in linkage, accurately realizes the accurate positioning of paper, and ensures the accuracy of paper conveying.

[0019] 2. Fast adjustment: the alignment unit of the paper feeding side alignment mechanism allows the paper to be quickly and accurately adjusted in place, reducing the debugging time.

[0020] 3. High efficiency: the paper feeding side alignment mechanism realizes automatic control, improves the production efficiency, and reduces the labor intensity of the operator.

[0021] 4. Low noise: compared with the traditional structure, the paper feeding side alignment mechanism runs more smoothly and has lower noise. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is the structure schematic drawing of the top of the utility model;

[0023] Figure 2 It is the structure schematic drawing of the top of the utility model after removing the front baffle;

[0024] Figure 3 It is the structure schematic drawing of the top of the utility model after removing the paper pressing frame;

[0025] Figure 4The structure schematic view of the bottom of the utility model;

[0026] Figure 5 The structure schematic view of the bottom of the utility model after removing the right wallboard and the driving shaft;

[0027] Figure 6 The structure schematic view of the bottom of the utility model middle side aligning assembly;

[0028] Figure 7 The structure schematic view of the utility model middle side aligning assembly part;

[0029] In the drawing: 1, wallboard, 2, paper pressing frame, 21, paper conveying pressure wheel, 22, lifting cylinder, 221, cylinder installation fixed shaft, 23, paper pressing frame installation shaft, 3, bearing plate, 31, driving roller, 32, driven roller, 33, conveying belt, 4, conveying belt tensioning shaft, 41, conveying belt bearing, 42, conveying belt tensioning block, 43, conveying belt tensioning wheel, 5, driving shaft, 51, driving shaft chain wheel, 52, chain, 53, chain tensioning wheel, 531, chain tensioning wheel installation hole, 6, camshaft, 61, camshaft chain wheel, 62, end face cam, 7, front support shaft, 71, rear support shaft, 72, base plate, 73, vertical plate, 74, bridge plate, 75, aligning plate, 8, aligning slide plate, 81, reset spring, 82, sliding block, 83, slide rail, 84, bearing fixed plate, 85, track roller, 86, stop cylinder, 87, bridge belt bearing, 88, bridge belt tensioning wheel, 89, bridge belt. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical scheme and advantages of the utility model more clear, the technical scheme of the utility model will be described clearly and completely below by combining with the utility model embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without making creative efforts belong to the scope of protection of the utility model.

[0031] In the description of the present application, "connection" or "connection" and similar words are not limited to physical or mechanical connection, but can include electrical connection, whether direct or indirect. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0032] In the description of the present application, "up", "down", "left", "right", "front", "back" and the like are only used to represent the relative positional relationship, when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0033] AsFigure 1 、 Figure 2 The utility model discloses a paper feeding side alignment mechanism of die cutting machine, as shown in the figure, including two wallboards 1 opposite and stand, install the paper feeding assembly between two wallboards 1 and the side alignment assembly located in the front of paper feeding assembly, specific introduction is as follows.

[0034] Among them, two wallboards 1 are the support structure of the paper feeding side alignment mechanism, for fixing and supporting other components.

[0035] As Figures 1-6 The paper feeding assembly includes a paper pressing frame 2 installed between two wallboards 1, a supporting plate 3 located below the paper pressing frame 2, and a driven roller 32 and a driving roller 31 located in front and rear of the supporting plate 3 respectively; a plurality of paper feeding pressure rollers 21 are installed below the paper pressing frame 2; a plurality of conveying belts 33 are sleeved on the driven roller 32 and the driving roller 31; the upper layer of the conveying belt 33 passes above the supporting plate 3 and is located below the corresponding column of paper feeding pressure rollers 21.

[0036] In specific implementation, each column of paper feeding pressure rollers 21 is provided with two and is located above the corresponding conveying belt 33. Moreover, the paper feeding pressure roller 21 works with the conveying belt 33 to clamp and transport paper. This design can ensure that the paper remains stable during conveying and avoids deviation or wrinkling. In addition, the driving roller 31 is connected with a driving motor at one end, so as to drive the driving roller 31 to rotate and drive the driven roller 32 to rotate through the conveying belt 33.

[0037] As Figure 1 、 Figure 2 The paper pressing frame 2 is provided with a paper pressing frame mounting shaft 23 behind, and the two ends of the paper pressing frame mounting shaft 23 are respectively installed on two wallboards 1. One lifting cylinder 22 is respectively arranged on the two sides of the paper pressing frame 2, and the telescopic end of the lifting cylinder 22 is installed on the corresponding side of the paper pressing frame 2, and the fixed end is installed on the corresponding wallboard 1 through the cylinder fixing shaft 221.

[0038] In specific implementation, the telescopic ends of the two lifting cylinders 22 are respectively connected with the left and right sides of the paper pressing frame 2, and the fixed ends of the two lifting cylinders 22 are respectively installed on two wallboards 1. Through the telescopic extension of the lifting cylinder 22, the paper pressing frame 2 can be driven to rotate around the paper pressing frame mounting shaft 23, so as to control the lifting of the paper pressing frame 2. When it is needed to lift the paper pressing frame 2 to put in or take out paper, the two lifting cylinders 22 can provide the required power and adjust the distance between the paper feeding pressure roller 21 and the conveying belt 33.

[0039] In other embodiments, as Figures 3-6As shown, the paper feeding assembly further comprises a conveying belt tensioning shaft 4 installed between the two wall plates 1 and below the supporting plate 3 and the lower layer of the conveying belt 33, a plurality of conveying belt bearings 41 and conveying belt tensioning blocks 42 alternately installed on the conveying belt tensioning shaft 4, and a plurality of conveying belt tensioning wheels 43 installed on the front side of the conveying belt tensioning blocks 42; each conveying belt bearing 41 is tightly attached to the top surface of the corresponding lower layer of the conveying belt 33, and each belt tensioning wheel 43 is tightly attached to the bottom surface of the corresponding lower layer of the conveying belt 33.

[0040] In specific implementation, the conveying belt tensioning wheel 43 plays a role in tensioning and adjusting the conveying belt 33, maintains the tensioning state of the conveying belt 33, and ensures the stability of transmission.

[0041] As shown, Figures 3-7 the side shooting alignment assembly comprises a bridge passing unit, a power unit, and a shooting alignment unit, which are specifically introduced as follows.

[0042] The bridge passing unit comprises a front baffle 9 installed between the two wall plates 1 and front and rear support shafts 7 and 71 located behind the front baffle 9. Specifically, as shown, Figures 1-3 the top surface of the front and rear support shafts 7 and 71 is installed with a base plate 72 in the middle, and the bottom surface of the base plate 72 is installed with a vertical plate 73 in the middle; the top surface of the front and rear support shafts 7 and 71 is movably installed with a plurality of bridge plates 74 on both sides.

[0043] In specific implementation, the paper fed by the paper feeding assembly can be accurately positioned left and right under the action of the shooting alignment unit and continue to run forward when passing through the plurality of bridge plates 74.

[0044] The power unit comprises a camshaft 6 installed between the two wall plates 1 and below the gap between the front and rear support shafts 7 and 71, and a driving shaft 5 located behind the camshaft 6. Specifically, as shown, Figures 4-6 the driving shaft 5 is installed with a driving shaft sprocket 51; the camshaft 6 is installed with a camshaft sprocket 61; and the driving shaft sprocket 61 and the camshaft sprocket 61 are sleeved with a chain 52.

[0045] In specific implementation, one end of the driving shaft 5 is connected with a servo motor. The accurate control of the servo motor can ensure the stable operation of the driving shaft sprocket 51, thereby driving the accurate action of other related components. Under the driving of the servo motor, the driving shaft 5 and the driving shaft sprocket 51 thereon rotate, and the driving shaft sprocket 51 drives the camshaft 6 to rotate through the chain 52.

[0046] In addition, the driving shaft 5 and the servo motor can adopt the power shaft and the servo motor inside the servo conveying mechanism of the die cutting machine paper feeder, so that the servo conveying mechanism and the paper feeding side alignment mechanism can be linked and matched, the accuracy of paper conveying is ensured, the production efficiency is improved, and the labor intensity of the operator is reduced.

[0047] As shown in Figure 2 , Figure 4 , Figure 5 , Figure 7 The alignment unit includes two alignment plates 75, two alignment sliding plates 8, two reset springs 81, two bearing fixing plates 84, two sliding blocks 82, two sliding rails 83, two track rollers 85, and two end face cams 62 which are symmetric in shape and position.

[0048] The two alignment plates 75 are symmetrically located above the front and rear support shafts 7, 71. Moreover, the two alignment plates 75 are symmetric in shape and can beat the left and right sides of the paper through transverse reciprocating motion, so as to ensure that the paper remains aligned during conveying, avoids skewing or misalignment, and realizes accurate positioning of the paper left and right.

[0049] The two alignment sliding plates 8 are symmetrically located below the gap between the front and rear support shafts 7, 71 and on both sides of the base plate 72, and are installed on the bottom surface of the corresponding alignment plate 75, for driving the alignment plate 75 to move transversely and reciprocally.

[0050] One end of the two reset springs 81 is installed in the inner end of the corresponding alignment sliding plate 8, and the other end is installed on the corresponding side of the vertical plate 73, for providing a reset function for the transverse reciprocating motion of the alignment sliding plate 8.

[0051] The two bearing fixing plates 84 are symmetrically installed on the bottom surface of the corresponding alignment sliding plate 8, for connecting the alignment sliding plate 8, the track roller 85 and the sliding block 82 together.

[0052] The two sliding blocks 82 are symmetrically installed on the front side of the corresponding bearing fixing plate 84. The two sliding rails 83 are symmetrically installed on the front side of the corresponding sliding block 82 and are fixedly installed on the inner wall of the front baffle 9, for providing a guiding function for the transverse reciprocating motion of the alignment sliding plate 8 through the sliding block 82.

[0053] The two track rollers 85 are symmetrically installed on the bottom surface of the corresponding bearing fixing plate 84, for driving the alignment sliding plate 8 to move transversely and reciprocally. The two end face cams 62 are symmetrically installed on the cam shaft 6, the inner end surface is provided with a contour curve, and contacts the corresponding track roller 85. Specifically, the end face cam 62 has a specific curve profile or groove and serves as a driving part to rotate at a constant speed. The track roller 85 can roll along the contour curve of the end face cam 62, thereby realizing the required motion form.

[0054] In actual implementation, when the camshaft 6 rotates, the two end face cams 62 rotate accordingly, and the two track rollers 85 roll along the profile curve of the corresponding end face cams 62. When the two track rollers 85 roll to the inwardly protruding curve segment, they are respectively pressed to move laterally to the center under the pressure of the curve segment, and drive the two alignment sliding plates 8 to move laterally to the center through the two bearing fixing plates 84, thereby driving the two alignment plates 75 to move laterally to the center, so as to beat the paper to the center from both sides. At the same time, the two sliding blocks 82 are driven by the two bearing fixing plates 84 to move laterally to the center along the two sliding rails 83, so as to ensure that the lateral movement track is correct and stable. Moreover, the two reset springs 81 are pressed and shortened to the center due to the lateral movement of the two alignment sliding plates 8 to the center.

[0055] Then, when the two track rollers 85 roll to the outwardly recessed curve segment, they continue to roll along the curve segment and move laterally to both sides under the action of the reset springs 81, and drive the two alignment sliding plates 8 to move laterally to both sides through the two bearing fixing plates 84, thereby driving the two alignment plates 75 to move laterally to both sides, so as to move away from both sides of the paper after completing the beating action. At the same time, the two sliding blocks 82 are driven by the two bearing fixing plates 84 to move laterally to both sides along the two sliding rails 83, so as to ensure that the lateral movement track is correct and stable. Moreover, the two reset springs 81 return to the original state due to the lateral movement of the two alignment sliding plates 8 to both sides.

[0056] In this way, the two end face cams 62 are driven to rotate by the servo motor, the two track rollers 85 are pressed to reciprocate laterally, the two alignment plates 75 are driven to reciprocate laterally, and the paper is repeatedly aligned to the center, so as to realize accurate positioning of the paper from both sides, and have the advantages of high-precision paper feeding, rapid paper adjustment, high production efficiency and low noise.

[0057] Moreover, the bridge plates 74 are movably installed on the top surfaces of the front and rear support shafts 7 and 71, and the positions thereof are adjustable. A distance for lateral movement of the alignment plates 75 is required between the two bridge plates 74 on both sides of the alignment plates 75. The positions of the two alignment plates 75 can be adjusted laterally according to the width of the paper, so as to be suitable for different sizes of paper. When the two alignment plates 75 are adjusted to the two sides of all the bridge plates 74, the maximum size of the paper is reached.

[0058] In other embodiments, as shown in Figs. Figure 4 , Figure 5 , Figure 7 The alignment unit further includes two stop air cylinders 86 respectively arranged on the outer sides of the two bearing fixing plates 84. The fixed ends of the two stop air cylinders 86 are respectively connected to the inner walls of the corresponding wall plates 1, and the telescopic ends thereof respectively contact the outer sides of the corresponding bearing fixing plates 84.

[0059] In the embodiment, the stop cylinder can accurately respond to the control signal, realize fast and accurate position control and blocking function, limit the position of the bearing fixing plate 84, and control the position of the clapping plate 75.

[0060] In other embodiments, as shown in Figure 5 、 Figure 6 The power unit further comprises a chain tensioning wheel 53 installed on the inner wall of the wall plate 1, and the chain tensioning wheel 53 is close to the top surface of the upper layer of the chain 52.

[0061] In the embodiment, the driving shaft chain wheel 51 is installed on the left end of the driving shaft 5, the camshaft chain wheel 61 is installed on the left end of the camshaft 6, and the chain tensioning wheel 53 is installed in the chain tensioning wheel mounting hole 531 on the inner wall of the left wall plate 1 and close to the top surface of the upper layer of the chain 52, so as to realize the tensioning adjustment of the chain 52, keep the tensioning state of the chain 52, and ensure the stability of the transmission.

[0062] In other embodiments, as shown in Figures 1-6 The bridge unit further comprises two bridge belt bearings 87 symmetrically installed on the front support shaft 7, two bridge belt tensioning wheels 88 symmetrically installed on the inner wall of the front baffle 9, and two bridge belts 89.

[0063] In the embodiment, the bridge belts 89 installed on the corresponding bridge belt bearings 87 and bridge belt tensioning wheels 88 and driven rollers 32 form a triangle and surround the upper parts of the front and rear support shafts 7 and 71 and the front baffle 9, so as to receive the paper from the paper conveying assembly and continue to convey the paper under the driving of the driven rollers 32.

[0064] In summary, the specific working process of the utility model is as follows: first, the conveying belt 33 starts to work under the driving of the driving roller 31 and the driven roller 32, and clamps and transmits the paper together with the paper conveying pressure roller 21 below the paper pressing frame 2. When the paper pressing frame 2 needs to be lifted, the lifting cylinder 22 provides power to lift the paper pressing frame 2. During the whole process, the conveying belt tensioning wheel 43 keeps the tensioning state of the conveying belt 33, and ensures the stability of the transmission.

[0065] Secondly, when the servo motor in the servo conveying mechanism of the die cutting machine paper feeder starts, it drives the driving shaft 5 to rotate, the driving shaft 5 drives the cam shaft 6 to rotate synchronously through the driving shaft sprocket 51, the chain 52 and the cam shaft sprocket 61, and the cam shaft 6 drives the two end face cams 62 on it to rotate synchronously.

[0066] And, in the process of rotating, the two end face cams 62 repeatedly push the two trajectory rollers 16 to the center through the contour curve of the inner end face, so that the two trajectory rollers 16 move transversely to the center reciprocatingly under the resetting action of the resetting spring 81 and the guiding action of the two sliders 82 and the two slide rails 83, and the two alignment plates 75 on the two alignment slide plates 8 move synchronously to the center reciprocatingly, so as to align the paper entering the bridge unit to the center direction, and ensure that the paper keeps alignment in the conveying process.

[0067] It can be seen that the structure and working principle of the die cutting machine paper feeder ensure the accurate conveying, alignment and accurate positioning of the paper, and provide a reliable basis for subsequent die cutting processing.

[0068] The above describes the technical solutions provided by the embodiments of the present application in detail, and the principles and implementation modes of the present application are described by applying specific examples; the above embodiment descriptions are only used to help understand the method of the present application and its core idea; meanwhile, for the general technical personnel in the field, the technical solutions recorded in the above embodiments can be modified or some technical features can be replaced equivalently according to the idea of the present application; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the idea and scope of the technical solutions of the embodiments of the present application.

Claims

1. A paper registration mechanism for a paper feed side of a die cutter, characterized by, The side alignment assembly comprises a bridge passing unit, a power unit and an alignment unit. The bridge passing unit comprises a front baffle plate installed between the two wall plates and front and rear support shafts behind the front baffle plate. The power unit comprises a camshaft installed between the two wall plates and below the gap between the front and rear support shafts and a driving shaft behind the camshaft. The alignment unit comprises two alignment plates above the front and rear support shafts, two alignment sliding plates below the gap between the front and rear support shafts and installed on the bottom surface of the corresponding alignment plates, two bearing fixing plates installed on the bottom surface of the corresponding alignment sliding plates, two sliding blocks installed on the front side of the corresponding bearing fixing plates, two sliding rails installed on the front side of the corresponding sliding blocks, two track rollers installed on the bottom surface of the corresponding bearing fixing plates and two end face cams installed on the camshaft.

2. The paper alignment mechanism of the paper feeding machine of the die cutting machine according to claim 1, characterized in that, The inner end of each of the two alignment sliding plates is connected to the corresponding side of the vertical plate through a corresponding return spring.

3. The paper alignment mechanism of the paper feeding machine of the die cutting machine according to claim 2, characterized in that, The front side of each of the two sliding rails is connected to the inner wall of the front baffle plate.

4. The paper alignment mechanism of the paper feeding machine of the die cutting machine according to claim 2 or 3, characterized in that, The inner end surface of each of the two end face cams is provided with a contour curve, and the track roller can move along the contour curve.

5. The paper alignment mechanism of the paper feeding mechanism of the die cutting machine according to claim 1, characterized in that, The paper feeding assembly comprises a paper pressing frame installed between the two wall plates, a supporting plate below the paper pressing frame and a driven roller and a driving roller respectively in front of and behind the supporting plate.

6. The paper alignment mechanism of the paper feeding machine of the die cutting machine according to claim 1 or 5, characterized in that, The bottom surface of the paper pressing frame is provided with a plurality of columns of paper feeding pressure rollers. The rear of the paper pressing frame is provided with a paper pressing frame mounting shaft, and the two sides of the paper pressing frame mounting shaft are respectively provided with lifting cylinders. The two ends of the paper pressing frame mounting shaft are respectively installed on the two wall plates. The paper feeding assembly further comprises a conveying belt tensioning shaft installed between the two wall plates and between the supporting plate and the lower layer of the conveying belt, a plurality of conveying belt bearings and conveying belt tensioning blocks alternately installed on the conveying belt tensioning shaft and a plurality of conveying belt tensioning wheels installed on the front end side of the conveying belt tensioning blocks. Each conveying belt bearing is in close contact with the top surface of the corresponding lower layer of the conveying belt, and each belt tensioning wheel is in close contact with the bottom surface of the corresponding lower layer of the conveying belt. The alignment unit further comprises two stop cylinders respectively arranged on the outer sides of the two bearing fixing plates. The fixed end of each of the two stop cylinders is connected to the inner wall of the corresponding wall plate, and the telescopic end of each of the two stop cylinders contacts the outer side of the corresponding bearing fixing plate. The power unit further comprises a chain tensioning wheel installed on the inner wall of the wall plate. The chain tensioning wheel is in close contact with the top surface of the upper layer of the chain.

7. The paper alignment mechanism of the paper feeding machine of the die cutting machine according to claim 1 or 5, characterized in that, The bridge unit further comprises two bridge belt bearings symmetrically mounted on the front support shaft, two bridge belt tensioning wheels mounted on the inner wall of the front baffle, and two bridge belts; the two bridge belt bearings are respectively located on both sides of the base plate; the two bridge belt tensioning wheels are respectively located below the corresponding bridge belt bearings; the upper layers of the two bridge belts pass above the front and rear support shafts and in front of the front baffle, and are respectively sleeved on the corresponding bridge belt bearings, bridge belt tensioning wheels and driven rollers.

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