CN212193368U - A fully automatic paper cutting machine - Google Patents

Abstract

The utility model provides a full-automatic paper cutting machine, which aims at the defects of manual paper cutting in the prior art, belongs to the technical field of paper cutting equipment, and comprises an automatic feeding mechanism, a deviation-correcting positioning mechanism with deviation-correcting positioning function and conveying function, a cutting mechanism with cutting function and a controller with feedback control function, wherein a paper gripping device is arranged between the automatic feeding mechanism and the deviation-correcting positioning mechanism; the paper sheet deviation correcting and positioning device is characterized in that a pressing device for preventing paper sheets from floating is arranged on the deviation correcting and positioning mechanism, a conveying device for conveying the paper sheets to be cut through the cutting mechanism is further arranged on the cutting mechanism, and the controller is connected with the automatic feeding mechanism, the deviation correcting and positioning mechanism, the paper sheet grabbing device, the cutting mechanism and the conveying device respectively. The utility model discloses can realize the automatic feeding to the paper, rectify location and cutting, can realize the automation of paper cutting, reduce workman's intensity of labour, show the work efficiency who promotes the paper cutting.

Description

A fully automatic paper cutting machine

technical field

The utility model belongs to the technical field of paper cutting equipment, in particular to an automatic paper cutting machine.

Background technique

In the production of some printed paper products such as photographic paper and stickers, these papers need to be cut. The length of such papers is short. In the prior art, manual cutting devices are basically used to cut such papers, which requires manual labor. Aligning the paper with the cutter on the manual cutting device to position the paper, and then manually driving the cutter to cut the paper, the work efficiency is very low.

SUMMARY OF THE INVENTION

Aiming at the disadvantages of manual paper cutting in the prior art, the utility model provides a fully automatic paper cutting machine, which can realize automatic feeding, rectification and positioning and automatic cutting for square paper, with a high degree of automation, which can significantly improve the Paper cutting efficiency.

The purpose of the invention of the present utility model is achieved through the following technical solutions: a fully automatic paper cutting machine, including an automatic feeding mechanism, a rectifying and positioning mechanism with a rectifying and positioning function and a conveying function, a cutting mechanism with a cutting function, and a feedback control. A functional controller, between the automatic feeding mechanism and the deviation-correcting positioning mechanism, there is a paper grabbing device that can move a single sheet of paper from the automatic feeding mechanism to the deviation-correcting positioning mechanism; The pressing device for paper floating, the cutting mechanism is also provided with a conveying device for conveying the paper through the cutting mechanism for cutting, and the controller is respectively connected with the automatic feeding mechanism, the deviation correction positioning mechanism, the paper grabbing device, the cutting mechanism, Conveyor connection.

In the above scheme, the paper is put into the automatic feeding mechanism, which can realize the automatic feeding of the paper, and the paper grabbing device grabs one sheet of paper at a time and moves it to the deviation correction positioning mechanism, and the deviation correction positioning mechanism rectifies the deviation of the paper. The position of the paper makes the paper move from the fixed position to the cutting mechanism to cut the paper. When the paper moves on the deviation correction positioning mechanism, the pressing device is pressed on the paper to prevent the paper from floating, so as to avoid the deviation correction positioning due to the floating of the paper. The process can improve the accuracy of paper deviation correction and positioning. When the paper passes through the cutting mechanism, the paper is driven by the conveying device to provide power for the paper, so as to realize the automatic cutting of the paper. The whole process is automatically controlled by the controller, and the controller adopts the PLC controller commonly used in the industry.

Preferably, the automatic feeding mechanism includes a first frame, the first frame is provided with a feeding port, and the first frame is provided with a material platform that can only move up and down and can drive the material platform to lift and close to the feeding The lift drive device of the mouth, above the material platform is provided with a first sensor for detecting the height of the paper above the material platform and a second sensor for detecting whether there is paper above the material platform, the lift drive device, the first sensor, the second sensor The two sensors are connected with the controller; the lift driving device includes a connection seat fixed on the material platform, the connection seat is screwed with a vertically arranged screw rod, and the lower end of the screw rod is connected with a screw driving the rotation of the screw rod A first motor, the first motor is connected with the controller, the first frame is also fixedly connected with a vertically arranged first guide rail, and the material platform is fixed with a slider that can slide along the first guide rail . When in use, the paper is neatly stacked on the material platform, the first sensor can monitor the height of the paper on the material platform and transmit a signal to the controller, the controller controls the first motor to work, the first motor drives the screw to rotate, and then controls The material platform moves up and down with the connecting seat until the height of the paper on the material platform is adjusted to the set height. The specific set height can be input and set through the PLC controller. When the paper grabbing device moves the uppermost paper from the automatic feeding mechanism to the deviation correction positioning mechanism, the first motor is controlled by the feedback of the first sensor and the controller, so that the height of the paper on the material platform is always kept at the set value. The height is convenient for the paper grabbing device to grab the paper. When the second sensor detects that there is no paper above the material platform, that is, all the paper is used up, the second sensor feeds back a signal to the controller, and the controller controls the automatic feeding mechanism to stop running.

Preferably, two transverse bars parallel to each other are fixed on the front and rear sides of the upper end face of the material platform, and a support plate is fixed between the upper ends of the two transverse bars; A paper width adjustment device, the paper width adjustment device includes a first guide rod fixedly arranged on the first frame and parallel to the horizontal rod, and two width adjustment pieces parallel to each other are arranged on the first guide rod The width adjustment plate is perpendicular to the first guide rod, one of the width adjustment plates is fixedly arranged on the first guide rod, and the other width adjustment plate is sleeved on the first guide rod and can move along the first guide rod. The guide rod slides; the first frame is also provided with a self-rotating screw rod, the screw rod is parallel to the first guide rod, and the width adjustment plate sleeved on the first guide rod is screwed with the screw rod, When the upper surface of the pallet moves with the material platform to be higher than the lower end of the width adjustment plate, the pallet is located between the two width adjustment plates, and the width adjustment plate is located between the two horizontal bars; the The end of the screw is fixedly connected with a knob for driving the rotation of the screw. The first sensor is fixedly arranged on the first guide rod. When the paper is placed on the automatic feeding mechanism, one side of the paper is attached to the width adjustment plate fixed on the first guide rod. At this time, turning the knob can drive the screw to rotate, thereby driving the width of the sleeve set on the first guide rod. The adjustment plate moves along the first guide rod, so that the width adjustment plate sleeved on the first guide rod can lean against the other side of the paper, so as to limit the paper, prevent the paper from moving left and right, and keep the paper in the The fixed position can also make the automatic feeding mechanism suitable for different sizes of paper. When the paper is actually placed, the paper is placed on the pallet on the material platform, and the pallet is fixed on two horizontal bars, so that there is a space margin between the paper and the material platform. When the number of sheets is small, the lower ends of the two width adjustment plates on the paper width adjustment device can extend between the two horizontal bars, so that the two width adjustment plates can still limit the paper without being affected by the height of the remaining paper. .

Preferably, the paper grabbing device includes a first cylinder fixed laterally on the first frame, the outer end of the piston rod of the first cylinder is vertically fixed and connected with a lateral beam, and the piston rod of the first cylinder is connected to the horizontal beam. The first guide rod is vertical; the first frame is also provided with a guide hole, and a second guide rod parallel to the piston rod of the first cylinder is sleeved in the guide hole, and the outer end of the second guide rod is connected to the The beams are fixedly connected; a second cylinder vertically arranged is fixed on the beam, and a horizontal tube with a hollow structure is fixedly connected to the lower end of the piston rod of the second cylinder. A hollow tube communicated with the inner cavity of the horizontal tube, the lower end of the hollow tube is fixedly connected with a rubber suction cup with a trumpet-shaped structure with an opening downward, a hose is connected to the horizontal tube, and an air pump is fixedly connected to the hose. When the piston rod does not extend outward, the second cylinder is located just above the feeding port; the first frame is also fixedly provided with a buffer for buffering the beam and a No. 1 for detecting the position of the beam. Three sensors; the first cylinder, the second cylinder, the air pump, and the third sensor are respectively connected with the controller. When the second air cylinder is directly above the feeding port, the second air cylinder can drive the horizontal pipe to move downward until the rubber suction cup is close to the uppermost paper on the automatic feeding mechanism, and the longitudinal movement distance of the rubber suction cup is determined by the second air cylinder. On the piston rod stroke control, in order to meet the requirements of use, when the piston rod of the second cylinder is extended to the maximum stroke, the rubber suction cup just sticks to the uppermost paper on the automatic feeding mechanism, and because the automatic feeding mechanism can The height of the paper on the control material platform is always kept at the set height, so the effect of the above scheme can be achieved. When the rubber suction cup is close to the paper, the air pump draws the gas in the horizontal tube, so that negative pressure is generated in the horizontal tube and the hollow tube, so that the paper can be adsorbed on the rubber suction cup, and then the piston rod of the second cylinder retracts, the first cylinder Drive the beam to the top of the deviation correction table, at this time the air pump stops working, the negative pressure in the horizontal tube and the hollow tube disappears, the paper falls on the deviation correction table under the action of gravity, and then the first cylinder drives the beam back to the top of the feeding port , waiting for the next job.

Preferably, the rectifying positioning mechanism includes a rectifying table, and two first grooves parallel to each other are arranged on the rectifying table at a position close to the automatic feeding mechanism, and each of the first grooves is provided with a conveyor belt , the conveying direction of the conveyor belt is parallel to the beam, and each conveyor belt is connected with a second motor for driving the conveyor belt to run; the deviation correction table is also provided with a second groove perpendicular to the first groove. The second groove is provided with a bottom plate that can only move back and forth along the length direction of the second groove. A third air cylinder that drives the bottom plate to move along the length of the second groove is fixed, a third guide rod is fixed on the lower end surface of the deviation correction table, and a fixing block fixed on the lower end surface of the bottom plate is sleeved on the third guide rod. , a pressing plate parallel to the bottom plate is arranged above the bottom plate, and a fourth cylinder arranged vertically is also fixed below the deviation correction table, and the piston rod of the fourth cylinder passes through the through hole on the bottom plate and is connected to the The pressing plate is fixedly connected; the bottom plate is also provided with a limit block for limiting the position of the paper, the limit block is perpendicular to the conveying direction of the conveyor belt, and above the deviation correction table are two for detecting the paper position. The fourth sensor, the two fourth sensors are respectively located on the outer sides of the two conveyor belts; the second motor, the third cylinder, the fourth cylinder and the fourth sensor are respectively connected with the controller; the first frame is also A separation roller to prevent paper from sticking is installed, the separation roller is parallel to the beam, the surface of the separation roller is provided with anti-skid lines, the separation roller is located between the feeding port and the deviation correction table, the separation roller The drum is higher than the paper height on the material platform. When the rubber suction cup drives the paper to move, the back side of the paper will sag under the influence of its own gravity, and will pass through the separation roller. If two sheets of paper are adsorbed together, under the frictional force of the separation roller, the paper that is not absorbed by the rubber suction cup will not be absorbed by the rubber suction cup. It will fall, so as to realize the separation of the paper, and ensure that the paper grabbing device only grabs one sheet of paper at a time. The actual paper to be cut is equipped with a cursor used in conjunction with the fourth sensor. The fourth sensor can detect the position of the paper by detecting the position of the cursor. When the fourth sensor detects that the paper is offset, a feedback signal is sent to the controller. , the controller controls the rotating shafts of the two second motors to generate a difference in rotational speed, so that the conveying speed of the two conveyor belts is different, so as to correct the deviation of the paper and correct the position of the paper. After the paper touches the limit block, it will stop moving. Combined with the conveying speed of the conveying device and the distance between the conveying device and the limit block, the time difference can be preset in the PLC controller to wait until the paper touches the limit block. At this time, the paper moves between the bottom plate and the pressing plate, and the controller controls the fourth cylinder to drive the pressing plate to press the paper on the paper. At this time, the bottom plate and the pressing plate clamp the paper, and the controller controls the third cylinder to drive the bottom plate. Move toward the cutting mechanism, and then control the paper to move to the cutting mechanism.

Preferably, the pressing device includes at least two mounting brackets located above the deviation correction table, a gap is left between the mounting brackets and the deviation correction table, and the mounting brackets are provided with mounting holes penetrating the upper and lower ends of the mounting bracket, so The installation hole is located just above the conveyor belt. There are two steel balls arranged in the vertical direction. The diameter of the steel ball is equal to the diameter of the installation hole and the diameter of the steel ball is greater than the height of the gap; A base is fixed between them; a mounting rod parallel to the beam is fixedly connected to the mounting frame, and a first elastic pressing piece that can be pressed on the deviation correction table is fixed on the mounting rod, and the mounting frame is fixed on the A connecting beam is connected, and the connecting beam is fixedly connected with a second elastic pressing piece that can be pressed on the deviation correction table. The direction of the first elastic pressing piece is opposite to the conveying direction of the conveyor belt. The front end of the first elastic pressing piece Inclined upward, the second elastic pressing piece is arranged along the conveying direction of the conveyor belt. The movement of the paper on the deviation correction platform is powered by the conveyor belt. During this process, due to the influence of air resistance, the paper may float up, thus affecting the deviation correction and positioning effect of the deviation correction positioning mechanism on the paper. To solve this problem, it is necessary to prevent the paper It floats up and does not interfere with the movement of the paper conveyed by the conveyor belt. In the utility model, by arranging the steel balls, the paper can be compressed better, preventing the paper from floating, and the steel balls can roll in the installation holes with the movement of the paper, which has little influence on the movement of the paper driven by the conveyor belt. The impact is negligible. At the same time, by setting more first elastic pressing sheets and second elastic pressing sheets, it can also achieve a better pressing effect on the paper. Both the first elastic pressing sheet and the second elastic pressing sheet are made of elastic steel with a thickness of less than 0.02mm. It can achieve a better pressing effect on the paper, can prevent the paper from floating, and will not affect the conveyor belt to drive the paper to move. Since the first elastic pressing piece is disposed opposite to the conveying direction of the conveyor belt, the front end of the first elastic pressing piece is designed to be inclined upward, so that the first elastic pressing piece will not affect the movement of the paper.

Preferably, a sensor position adjustment device for adjusting the position of the fourth sensor is provided between each of the fourth sensors and the mounting frame, and the sensor position adjustment device includes a second guide rail parallel to the conveying direction of the conveyor belt. The two guide rails are provided with a first adjusting plate that can slide along the second guide rail, the mounting frame is also fixedly provided with an adjusting seat, and the adjusting seat is fixedly connected with a screw micrometer head capable of driving the first adjusting plate away from the adjusting seat , between the adjustment seat and the first adjustment plate, there is a first return spring that can drive the first adjustment plate to reset; the first adjustment plate is fixedly connected with a third guide rail perpendicular to the second guide rail, and the third guide rail is provided with an energy The second adjusting plate slides along the third guide rail, a locking bolt capable of locking and fixing the second adjusting plate on the third guide rail is arranged between the second adjusting plate and the third guide rail, and the fourth sensor is fixedly arranged It is arranged at the end of the second adjusting plate and facing the deviation correction table; the bottom plate is also provided with a strip-shaped through groove parallel to the conveying direction of the conveyor belt, and a fixed plate is fixed on the bottom plate, and the fixed plate is arranged on the limit block facing away from the conveying device One side of the fixing plate is screwed with adjustment bolts parallel to the conveying direction of the conveyor belt, the ends of the adjustment bolts are closely attached to the limit block, and the bottom plate is fixedly connected with a fourth guide rod parallel to the conveying direction of the conveyor belt. The limit block is sleeved on the fourth guide rod and can slide along the fourth guide rod, and a second return spring that can drive the limit block to move toward the fixed plate is arranged between the limit block and the bottom plate. The position of the cursor on different sizes of paper is different, the position of the fourth sensor can be adjusted to correspond to the position of the cursor on the paper through the sensor position adjustment device, so that the deviation correction positioning mechanism can be applied to different batches of paper of different sizes. The position of the limit block can also be adjusted by the provided adjusting bolt and the second return spring, so that the limit block can also be applied to different sizes of paper.

Preferably, the cutting mechanism includes a second frame, a cutting platform is fixedly connected to the second frame, a first horizontal plate parallel to the upper end surface of the cutting platform is arranged above the cutting platform, and two horizontal plates are fixedly connected to the lower end of the first horizontal plate. The installation limit bars are parallel to each other, a mounting plate is arranged under the first horizontal plate, and two installation through grooves corresponding to the installation limit bars are arranged on the end surface of the installation plate, and the installation limit bars can only The end of the installation through slot is embedded into the corresponding installation through slot, and two positioning baffles corresponding to the installation through slot are also fixedly connected to the first horizontal plate. When the installation plate is installed on the installation limit bar When it is installed, the positioning baffle closes one end of the installation through slot and the mounting plate is attached to the positioning baffle. The cutting tool matched with the platform, the lower end surface of the tool plate is also fixedly connected with a buffer sponge, and the thickness of the buffer sponge when it is not deformed is greater than the height of the cutting tool; the second frame is provided with a plurality of cutting tools that can only move along the length direction. All the guide columns are vertically arranged, the upper ends of the guide columns are fixedly connected with the first horizontal plate, a second horizontal plate parallel to the first horizontal plate is arranged below the cutting platform, and the lower ends of the guide columns are connected to the first horizontal plate. The second horizontal plate is fixedly connected, the second frame is also provided with a cam that can drive the second horizontal plate to move downward, and the second frame is also fixedly provided with a third horizontal plate parallel to the second horizontal plate. horizontal plate, the third horizontal plate is located directly below the second horizontal plate, and the third horizontal plate is fixedly connected with a third motor for driving the rotation of the cam; the lower end surface of the second horizontal plate is also fixedly connected with a vertically arranged limiter The limit rod is fixedly connected with a limit plate that cooperates with the lower end surface of the third horizontal plate, and a third reset that can drive the second horizontal plate to move upward is also arranged between the third horizontal plate and the second horizontal plate. a spring, the third return spring is coiled and arranged on the limit rod, and the third motor is connected to the controller. The third motor drives the cam to rotate, and the cam can drive the second horizontal plate to move downward, and then controls the first horizontal plate to move downward through the guide column, and finally controls the cutting tool to cooperate with the cutting platform to realize the paper cutting operation. When the motor shaft is closer to the second horizontal plate, the third return spring drives the second horizontal plate to move upward, and then controls the first horizontal plate and the cutting tool to move upward until the limit plate on the limit rod is in contact with the third horizontal plate. The lower end face of the board is attached to the first horizontal board and no longer moves upward, and a cutting is completed at this time. The mounting plate can be quickly installed by inserting the limit strip into the installation slot. When the mounting plate is fitted with the positioning baffle, it proves that the mounting plate is installed in place. At this time, the positioning baffle plays a role in the positioning and installation of the mounting plate. The tool plate with the cutting tool is pre-installed on the mounting plate by screws. The tool plate and the mounting plate are respectively provided with corresponding screw holes. Installing screws in the screw holes can position the tool plate on the mounting plate. On the board, there is no need for additional positioning, so that the cutting tool can be quickly installed. The set buffer sponge can play a buffering role and protect the tool to a certain extent.

Preferably, there are two sets of conveying devices, and the two sets of conveying devices are respectively arranged on the front and rear sides of the cutting platform. There is a fourth motor that drives the driving roller to rotate, a driven roller that cooperates with the driving roller is arranged above the driving roller, and a second frame is also fixed on the second frame for driving the driven roller to move up and down. Five cylinders, the piston rod of the fifth cylinder is provided with a bearing, and the end of the driven roller is sleeved on the bearing; the second frame is also fixedly provided with a fifth sensor for detecting the position of the paper and The sixth sensor, the fifth sensor and the sixth sensor are all located on the front side of the conveying device on the front side of the cutting platform; the fourth motor, the fifth air cylinder, the fifth sensor and the sixth sensor are respectively connected with the controller. The fifth sensor and the sixth sensor are both located on the front side of the conveying device on the front side of the cutting platform, that is to say, when the paper passes through the conveying device on the front side of the cutting platform, it will be detected by the fifth sensor and the sixth sensor. When the paper arrives, the feedback signal is sent to the controller, and the controller controls the fifth cylinder on the conveying device on the front side of the cutting platform to drive the driven roller to move down until the driven roller cooperates with the driving roller, and the controller controls the fourth motor at the same time Drive the driving roller to rotate, the driving roller and the driven roller can clamp the paper and convey the paper through the conveying device on the front side of the cutting platform. When the paper completely passes the fifth sensor, the fifth sensor cannot detect the paper. The controller receives the feedback signal from the fifth sensor, and the controller controls the fifth air cylinder on the conveying device on the rear side of the cutting platform to drive the driven roller to move down until the driven roller cooperates with the driving roller, and controls the fourth The motor drives the driving roller to rotate, and at the same time controls the fifth cylinder on the conveying device on the front side of the cutting platform to drive the driven roller to move up, and controls the fourth motor on the conveying device to stop working. The conveying device is clamped and conveyed, which can ensure that the conveying device always provides power for the paper when the paper passes through the cutting mechanism, and ensures that the cutting mechanism can cut the paper. On the paper, a cursor used in conjunction with the sixth sensor is arranged next to the position to be cut in each row. When the paper passes through the sixth sensor, the sixth sensor detects the above-mentioned cursor position, and then feeds back a signal to the controller, and the controller controls the cutting mechanism. Cut the paper to achieve the function of cutting and positioning.

Preferably, the rear end of the second frame of the cutting mechanism is also fixedly provided with a receiving platform, the receiving platform is gradually inclined downward from front to back, and the front end of the receiving platform is lower than the conveying device located on the rear side of the cutting platform. The driving roller is fixedly connected with two limit stops for limiting the paper on the receiving platform. The paper cut by the cutting mechanism will fall on the receiving platform, which is convenient for workers to uniformly handle the cut paper. The set limit stops can limit the paper horizontally, prevent the paper from falling out of the receiving platform, and facilitate workers to sort the paper on the receiving platform.

Compared with the prior art, the utility model has the following beneficial effects: the utility model can realize automatic feeding, rectification and positioning and cutting of paper, realize the automation of paper cutting, reduce the labor intensity of workers, and significantly improve the efficiency of paper cutting. work efficiency.

Description of drawings

1 is a perspective view of the utility model;

Fig. 2 is an enlarged view at A in Fig. 1;

Fig. 3 is the top view of the utility model;

Fig. 4 is the bottom view of the utility model;

Fig. 5 is an enlarged view at B in Fig. 4;

6 is a schematic structural diagram of an automatic feeding mechanism and a paper grabbing device;

7 is a schematic structural diagram of a lift drive device;

Figure 8 is a schematic structural diagram of a pressing device;

9 is a schematic structural diagram of a cutting mechanism, a conveying device, and a receiving platform;

10 is a schematic structural diagram of a cutting mechanism, a conveying device, and a receiving platform;

Figure 11 is a bottom view of the mounting plate with the cutter plate;

Labels in the figure: 1. Automatic feeding mechanism, 2. Correction and positioning mechanism, 3. Cutting mechanism, 4. Controller, 5. Paper grabbing device, 6. Pressing device, 7. Conveying device, 8. The first machine Rack, 9, Feeding port, 10, Material platform, 11, Lifting drive, 12, First sensor, 13, Second sensor, 14, Connecting seat, 15, Screw, 16, First motor, 17, No. 1 a guide rail, 18, slider, 19, cross bar, 20, pallet, 21, paper width adjustment device, 22, first guide rod, 23, width adjustment plate, 24, screw rod, 25, knob, 26, first Cylinder, 27, Beam, 28, Guide hole, 29, Second guide rod, 30, Second cylinder, 31, Cross tube, 32, Hollow tube, 33, Rubber suction cup, 34, Air pump, 35, Hose, 36, Buffer, 37, Third sensor, 38, Correction table, 39, First groove, 40, Conveyor belt, 41, Second motor, 42, Second groove, 43, Bottom plate, 45, Third cylinder, 46, The third guide rod, 47, the fixing block, 48, the pressing plate, 49, the fourth cylinder, 50, the limit block, 51, the fourth sensor, 52, the separation roller, 53, the mounting frame, 54, the mounting hole, 55, steel ball, 56, base, 57, mounting rod, 58, first elastic pressing piece, 59, connecting beam, 60, second elastic pressing piece, 61, sensor position adjustment device, 62, second guide rail, 63, The first adjustment plate, 64, the adjustment seat, 65, the screw micrometer head, 66, the first return spring, 67, the third guide rail, 68, the second adjustment plate, 69, the locking bolt, 70, the bar-shaped through groove, 71. Fixing plate, 72, Adjusting bolt, 73, Fourth guide rod, 74, Second return spring, 75, Second frame, 76, Cutting platform, 77, First horizontal plate, 78, Installation limit bar, 79. Mounting plate, 80, Mounting channel, 81, Positioning baffle plate, 82, Screw, 83, Cutter plate, 84, Cutting tool, 85, Cushion sponge, 86, Guide column, 87, Second horizontal plate, 88, cam, 89, third horizontal plate, 90, third motor, 91, limit lever, 92, limit plate, 93, third return spring, 94, driving roller, 95, fourth motor, 96, driven Roller, 97, fifth cylinder, 98, bearing, 99, fifth sensor, 100, sixth sensor, 101, receiving platform, 102, limit stopper.

Detailed ways

The present utility model will be further described below in conjunction with the embodiments represented by the accompanying drawings:

Example 1

As shown in Figure 1, Figure 3 and Figure 4, a fully automatic paper cutting machine includes an automatic feeding mechanism 1, a correction and positioning mechanism 2 with a correction and positioning function and a conveying function, a cutting mechanism with a cutting function 3, with feedback The controller 4 of the control function, between the automatic feeding mechanism 1 and the deviation-correcting positioning mechanism 2, there is a paper grabbing device 5 that can move a single sheet of paper from the automatic feeding mechanism 1 to the deviation-correcting positioning mechanism 2; the The rectifying and positioning mechanism 2 is provided with a pressing device 6 to prevent the paper from floating, the cutting mechanism 3 is also provided with a conveying device 7 that transports the paper through the cutting mechanism 3 for cutting, and the controller 4 is respectively connected with the automatic feeding mechanism. 1. The correction and positioning mechanism 2, the paper grabbing device 5, the cutting mechanism 3, and the conveying device 7 are connected.

As shown in FIG. 1 , FIG. 3 , FIG. 6 , and FIG. 7 , the automatic feeding mechanism 1 includes a first frame 8 , the first frame 8 is provided with a feeding port 9 , and the first frame 8 is provided with The material platform 10 that can only move up and down and the lift drive device 11 that can drive the material platform 10 to rise and fall and approach the feeding port 9 are provided above the material platform 10. A first sensor 12 for detecting the height of the paper above the material platform 10 and a A second sensor 13 for detecting whether there is paper above the material platform 10, the lift drive device 11, the first sensor 12, and the second sensor 13 are connected to the controller 4; the lift drive device 11 includes a The connecting seat 14 on the material platform 10, the connecting seat 14 is screwed with a vertically arranged screw rod 15, the lower end of the screw rod 15 is connected with a first motor 16 that drives the screw rod 15 to rotate, and the first motor 16 is connected with the control The first frame 8 is also fixedly connected with a vertically arranged first guide rail 17 , and the material platform 10 is fixedly provided with a slider 18 that can slide along the first guide rail 17 . Two transverse bars 19 parallel to each other are fixed on the front and rear sides of the upper end surface of the material platform 10 , a support plate 20 is fixed between the upper ends of the two transverse bars 19 , and the second sensor 13 is fixed on the support plate 20 The first frame 8 is provided with a paper width adjusting device 21 located above the material platform 10 , and the paper width adjusting device 21 includes a The first guide rod 22, the first guide rod 22 is provided with two mutually parallel width adjustment plates 23, the width adjustment plate 23 is perpendicular to the first guide rod 22, and one of the width adjustment plates 23 is fixedly arranged on the first guide rod 22. On one guide rod 22 , another width adjustment plate 23 is sleeved on the first guide rod 22 and can slide along the first guide rod 22 ; the first frame 8 is also provided with a self-rotating screw rod 24. The screw 24 is parallel to the first guide rod 22, and the width adjustment plate 23 sleeved on the first guide rod 22 is screwed with the screw 24. When the upper end surface of the support plate 20 moves with the material platform 10 When it is higher than the lower end of the width adjustment plate 23, the support plate 20 is located between the two width adjustment plates 23, and the width adjustment plate 23 is located between the two cross bars 19; the end of the screw 24 is fixed A knob 25 that drives the screw 24 to rotate is connected. The first sensor 12 is fixed on the first guide rod 22 .

As shown in FIGS. 1 , 3 and 6 , the paper grabbing device 5 includes a first cylinder 26 that is laterally fixed on the first frame 8 , and the outer end of the piston rod of the first cylinder 26 is vertically fixed and connected with a lateral The beam 27 is provided, the piston rod of the first cylinder 26 is perpendicular to the first guide rod 22; the first frame 8 is also provided with a guide hole 28, and the guide hole 28 is sleeved with the first guide rod 28. A second guide rod 29 parallel to the piston rod of the air cylinder 26, the outer end of the second guide rod 29 is fixedly connected with the beam 27; the beam 27 is fixedly provided with a vertically arranged second cylinder 30, the second cylinder 30 The lower end of the piston rod is fixedly connected with a horizontal tube 31 with a hollow structure, a plurality of hollow tubes 32 that are vertically arranged and communicated with the inner cavity of the horizontal tube 31 are fixedly connected to the horizontal tube 31, and the lower end of the hollow tube 32 is fixedly connected with an opening set downward A rubber suction cup 33 with a trumpet-shaped structure, a hose 35 is connected to the horizontal pipe 31, and an air pump 34 is fixedly connected to the hose. When the piston rod of the first air cylinder 26 does not extend outward, the second air cylinder 30 is located directly above the feeding port 9; the first frame 8 is also fixedly provided with a buffer for the beam 27 The buffer 36 and the third sensor 37 for detecting the position of the beam 27 ; the first cylinder 26 , the second cylinder 30 , the air pump 34 , and the third sensor 37 are respectively connected to the controller 4 .

As shown in FIGS. 1-5 , the rectifying and positioning mechanism 2 includes a rectifying table 38 , and two first grooves 39 parallel to each other are provided on the rectifying table 38 near the automatic feeding mechanism 1 . There is a conveyor belt 40 in the first groove 39, the conveying direction of the conveyor belt 40 is parallel to the beam 27, and a second motor 41 for driving the conveyor belt 40 is connected to each conveyor belt 40. The second motor 41 is fixedly arranged under the deviation correction table 38, the second motor 41 is a servo motor; the deviation correction table 38 is also provided with a second groove 42 perpendicular to the first groove 39, the second groove 42 is provided with a bottom plate 43 that can only move back and forth along the length direction of the second groove 42, the upper end surface of the bottom plate 43 is flush with the upper end surface of the deviation correction table 38, the bottom plate 43 is provided with a through hole, and the bottom of the deviation correction table 38 is also fixed There is a third air cylinder 45 that drives the bottom plate 43 to move along the length direction of the second groove 42, and a third guide rod 46 is fixed on the lower end surface of the deviation correction table 38. The third guide rod 46 is sleeved and fixed on the bottom plate. 43 The fixing block 47 on the lower end face of the bottom plate 43, a pressing plate 48 parallel to the bottom plate 43 is arranged above the bottom plate 43, and a vertically arranged fourth cylinder 49 is also fixed below the deviation correction table 38. The piston of the fourth cylinder 49 The rod passes through the through hole on the bottom plate 43 and is fixedly connected to the pressing plate 48 ; the bottom plate 43 is also provided with a limit block 50 for limiting the position of the paper, and the limit block 50 is connected to the conveyor belt 40 The conveying direction is vertical, two fourth sensors 51 for detecting the position of the paper are arranged above the deviation correction table 38, and the two fourth sensors 51 are respectively located on the outer sides of the two conveyor belts 40; the second motor 41, the third air cylinder 45. The fourth cylinder 49 and the fourth sensor 51 are respectively connected to the controller 4, and the controller 4 is fixedly arranged on the deviation correction table 38; The separation roller 52, the separation roller 52 is parallel to the beam 27, the surface of the separation roller 52 is provided with anti-skid lines, the separation roller 52 is located between the feeding port 9 and the deviation correction table 38, the separation The rollers 52 are higher than the paper level on the material platform 10 . The air pump 34 is fixedly arranged on the deviation correction table 38 .

As shown in FIG. 8 , the pressing device 6 includes two mounting brackets 53 located above the deviation-correcting table 38 , and a gap is left between the mounting brackets 53 and the deviation-correcting table 38 , and the gap is used for the movement of the paper. The mounting frame 53 is provided with mounting holes 54 penetrating the upper and lower ends of the mounting frame 53. The mounting holes 54 are located directly above the conveyor belt 40. The mounting holes 54 are provided with two longitudinally arranged steel balls 55. The diameters of the mounting holes 54 are equal and the diameter of the steel balls 55 is greater than the height of the gap; a base 56 is fixed between the mounting frame 53 and the deviation correction table 38 ; The mounting rod 57 is fixedly provided with a first elastic pressing piece 58 that can be pressed on the deviation correction table 38 , the mounting frame 53 is fixedly connected with a connecting beam 59 , and the connecting beam 59 is fixedly connected with an energy The second elastic pressing piece 60 pressed on the deviation correction table 38, the direction of the first elastic pressing piece 58 is opposite to the conveying direction of the conveyor belt 40, the front end of the first elastic pressing piece 58 is inclined upward, and the second elastic pressing piece 58 is oriented upward. The elastic pressing sheet 60 is arranged along the conveying direction of the conveyor belt 40 . A sensor position adjusting device 61 for adjusting the position of the fourth sensor 51 is provided between each of the fourth sensors 51 and the mounting frame 53 . The guide rail 62, the second guide rail 62 is provided with a first adjusting plate 63 that can slide along the second guide rail 62, the mounting frame 53 is also fixedly provided with an adjusting seat 64, and the adjusting seat 64 is fixedly connected with a first adjusting plate 63 capable of driving the first The adjustment plate 63 is far away from the screw micrometer head 65 of the adjustment seat 64, and a first return spring 66 is arranged between the adjustment seat 64 and the first adjustment plate 63 that can drive the first adjustment plate 63 to reset; the first adjustment plate 63 is fixedly connected There is a third guide rail 67 perpendicular to the second guide rail 62. The third guide rail 67 is provided with a second adjusting plate 68 that can slide along the third guide rail 67. The second adjusting plate 68 is locked and fixed on the locking bolts 69 on the third guide rail 67, the fourth sensor 51 is fixedly arranged at the end of the second adjusting plate 68 and is disposed toward the deviation correction table 38; the bottom plate 43 is also There is a strip-shaped through groove 70 parallel to the conveying direction of the conveyor belt 40, and a fixing plate 71 is fixed on the bottom plate 43. The fixing plate 71 is arranged on the side of the limit block 50 facing away from the conveying device 7. The fixing plate 71 is screwed with The adjusting bolt 72 is parallel to the conveying direction of the conveyor belt 40 , the end of the adjusting bolt 72 is closely attached to the limit block 50 , and the bottom plate 43 is fixedly connected with a fourth guide rod 73 parallel to the conveying direction of the conveying belt 40 . The limit block 50 is sleeved on the fourth guide rod 73 and can slide along the fourth guide rod 73 . Two return springs 74 .

As shown in FIGS. 1 , 3 , 4 , and 9-11 , the cutting mechanism 3 includes a second frame 75 , a cutting platform 76 is fixedly connected to the second frame 75 , and a cutting platform 76 is provided above the cutting platform 76 . The upper end of the platform 76 is parallel to the first horizontal plate 77, and the lower end of the first horizontal plate 77 is fixedly connected with two mutually parallel installation limit bars 78, a mounting plate 79 is arranged below the first horizontal plate 77, The end surface is provided with two installation through grooves 80 corresponding to the installation limit bars 78 , and the installation limit bars 78 can only be inserted into the corresponding installation through grooves 80 from the ends of the installation through grooves 80 . The plate 77 is also fixedly connected with two positioning baffles 81 corresponding to the installation through grooves 80 . When the installation plate 79 is installed on the installation limit bar 78 , the positioning baffles 81 keep the installation through. One end of the slot 80 is closed and the mounting plate 79 is attached to the positioning baffle 81 . The lower end of the mounting plate 79 is fixedly connected to the cutter plate 83 through the screw 82 , and the lower end surface of the cutter plate 83 is fixedly connected to the cutting tool matched with the cutting platform 76 . 84, the lower end surface of the cutter plate 83 is also fixedly connected with a buffer sponge 85, and the thickness of the buffer sponge 85 when it is not deformed is greater than the height of the cutting tool 84; The moving guide columns 86, all the guide columns 86 are vertically arranged, the upper ends of the guide columns 86 are fixedly connected to the first horizontal plate 77, and a second horizontal plate 87 parallel to the first horizontal plate 77 is provided below the cutting platform 76 , the lower end of the guide column 86 is fixedly connected with the second horizontal plate 87, and the second frame 75 is also provided with a cam 88 that can drive the second horizontal plate 87 to move downward. The second frame 75 A third horizontal plate 89 parallel to the second horizontal plate 87 is also fixed thereon. The third horizontal plate 89 is located directly below the second horizontal plate 87. The motor 90; the lower end surface of the second horizontal plate 87 is also fixedly connected with a vertically arranged limit rod 91, and the limit rod 91 is fixedly connected with a limit plate 92 that cooperates with the lower end surface of the third horizontal plate 89. There is also a third return spring 93 between the third horizontal plate 89 and the second horizontal plate 87 that can drive the second horizontal plate 87 to move upward. The third return spring 93 is coiled and arranged on the limit rod 91. The third motor 90 is connected to the controller 4 .

As shown in FIGS. 1 , 3 , 4 , 9 and 10 , the conveying devices 7 are two sets, and the two sets of conveying devices 7 are respectively arranged on the front and rear sides of the cutting platform 76 , and the conveying devices 7 include setting A driving roller 94 that can rotate on the second frame 75 is fixed on the second frame 75 with a fourth motor 95 that drives the driving roller 94 to rotate. The fourth motor 95 is a servo motor, and the driving roller Above the drum 94 is a driven roller 96 that cooperates with the driving roller 94 , and a fifth cylinder 97 for driving the driven roller 96 to ascend and descend is also fixed on the second frame 75 . A bearing 98 is provided on the piston rod, and the end of the driven roller 96 is sleeved on the bearing 98; the second frame 75 is also fixedly provided with a fifth sensor 99 and a sixth sensor 100 for detecting the position of the paper , the fifth sensor 99 and the sixth sensor 100 are located on the front side of the conveying device 7 on the front side of the cutting platform 76; the fourth motor 95, the fifth air cylinder 97, the fifth sensor 99, and the sixth sensor 100 are respectively connected with the device 4 is connected.

As shown in Fig. 1, Fig. 3, Fig. 4, Fig. 9, Fig. 10, the rear end of the second frame 75 of the cutting mechanism 3 is also fixedly provided with a receiving platform 101, and the receiving platform 101 gradually moves from front to back. The front end of the receiving platform 101 is lower than the driving roller 94 of the conveying device 7 located on the rear side of the cutting platform 76, and the receiving platform 101 is fixedly connected with two limit blocks for limiting the paper. Piece 102.

In the present invention, the first sensor 12 , the second sensor 13 , the third sensor 37 , the fourth sensor 51 , the fifth sensor 99 and the sixth sensor 100 are all infrared sensors. detection function.

The utility model is mainly used for cutting and cutting square paper. In actual use, the paper is neatly stacked on the support plate 20 of the automatic feeding mechanism 1, and one side of the paper is attached to the first guide rod 22 fixed on the first guide rod 22. On the width adjustment plate 23 above, by turning the knob 25 on the paper width adjustment device 21, another width adjustment plate 23 is driven to fit on the other side of the paper, so as to realize the limited adjustment of the paper width and prevent the paper from being loaded into automatic feeding. The mechanism 1 is laterally offset to keep the paper in a fixed position, and at the same time, the automatic feeding mechanism 1 can be applied to different sizes of paper. The first sensor 12 on the automatic feeding mechanism 1 can monitor the height of the paper on the material platform 10 and transmit a signal to the controller 4. The controller 4 controls the first motor 16 to work, and the first motor 16 drives the screw 15 to rotate, thereby controlling The material platform 10 moves up and down with the connection base 14 until the height of the paper on the material platform 10 is adjusted to the set height. The specific set height can be input and set through the controller 4. The controller 4 adopts a PLC controller, the full name of which is Programmable logic controller (Programmable Logic Controller), a digital electronic device with a microprocessor, a digital logic controller for automatic control, which can load control instructions into memory at any time for storage and execution. CPU, instruction and data memory, input and output unit, power module, digital analog and other units are modularized and combined.

When the paper grabbing device 5 is working, the second air cylinder 30 drives the transverse tube 31 to move downward until the rubber suction cup 33 is in close contact with the uppermost paper on the automatic feeding mechanism 1, and the longitudinal movement distance of the rubber suction cup 33 is determined by the second The stroke control of the piston rod on the cylinder 30, in order to meet the requirements of use, when the piston rod of the second cylinder 30 is extended to the maximum stroke, the rubber suction cup 33 just sticks to the uppermost paper on the automatic feeding mechanism 1. The automatic feeding mechanism 1 can control the height of the paper on the material platform 10 to always keep the set height, so the effect of the above solution can be realized. When the rubber suction cup 33 is in close contact with the paper, the air pump 34 extracts the gas in the horizontal tube 31 to generate negative pressure in the horizontal tube 31 and the hollow tube 32, so that the paper can be adsorbed on the rubber suction cup 33, and then the second air cylinder 30 The piston rod retracts, the controller 4 controls the first cylinder 26 to drive the beam 27 to move above the deviation correction table 38. At this time, the air pump 34 stops working, the negative pressure in the horizontal tube 31 and the hollow tube 32 disappears, and the paper is under the action of gravity. It falls on the deviation correction table 38, and then the first cylinder 26 drives the beam 27 back to the top of the feeding port 9, waiting for the next operation. When the paper grabbing device 5 absorbs the paper to pass through the separation roller 52 between the feeding port 9 and the deviation correction table 38, if two sheets of paper are sucked together, under the action of the frictional force of the separation roller 52, the rubber The paper adsorbed by the suction cup 33 will fall, thereby realizing the separation of the paper, and ensuring that the paper grabbing device 5 only grabs one sheet of paper at a time.

The paper to be cut is actually provided with a cursor that is used in conjunction with the fourth sensor 51. When the paper falls to the deviation correction table 38 of the deviation correction positioning mechanism 2, the fourth sensor 51 can detect the position of the paper by detecting the position of the cursor. When the fourth sensor 51 detects the deviation of the paper, a feedback signal is sent to the controller 4, and the controller 4 controls the rotating shafts of the two second motors 41 to generate a rotational speed difference, so that the conveying speed of the two conveyor belts 40 is different, so as to realize the control of the paper. to correct the position of the paper. After the paper touches the limit block 50, it will stop moving. Combined with the conveying speed of the conveyor belt 40 and the distance between the conveyor belt 40 and the limit block 50, the paper can wait until the paper touches the limit by presetting the time difference in the PLC controller 4. After block 50, the paper moves between the bottom plate 43 and the pressing plate 48. The controller 4 controls the fourth air cylinder 49 to drive the pressing plate 48 to press the paper. At this time, the bottom plate 43 and the pressing plate 48 press the paper. After clamping, the controller 4 controls the third air cylinder 45 to drive the bottom plate 43 to move toward the cutting mechanism 3 , and then controls the paper to move toward the cutting mechanism 3 . In order to prevent the paper from floating when moving on the deviation correction platform, the steel balls 55 in the present invention can achieve a better pressing effect on the paper to prevent the paper from floating, and the steel balls 55 can move in the installation hole with the movement of the paper. Rolling inside 54 has little influence on the movement of the paper driven by the conveyor belt 40, and its influence can be ignored. At the same time, by arranging multiple first elastic pressing sheets 58 and second elastic pressing sheets 60, a better pressing effect on the paper can also be achieved. The elastic steel sheet of mm can achieve a better pressing effect on the paper, can prevent the paper from floating, and will not affect the conveyor belt 40 to drive the paper to move. Since the first elastic pressing piece 58 is disposed opposite to the conveying direction of the conveyor belt 40 , the front end of the first elastic pressing piece 58 is designed to be inclined upward, so that the first elastic pressing piece 58 will not affect the movement of the paper. The position of the cursor on different sizes of paper is different. The sensor position adjusting device 61 can be used to adjust the position of the fourth sensor 51 to correspond to the cursor position on the paper, so that the deviation correction positioning mechanism 2 can be applied to different batches of paper of different sizes. The position of the limit block 50 can also be adjusted by the provided adjustment bolt 72 and the second return spring 74, so that the limit block 50 can also be adapted to different sizes of paper.

When the paper enters the cutting mechanism 3, the fifth sensor 99 and the sixth sensor 100 are both located in front of the conveying device 7 on the front side of the cutting platform 76, that is to say, when the paper passes through the conveying device 7 on the front side of the cutting platform 76, it will be bound by the fifth sensor. The sensor 99 and the sixth sensor 100 detect, when the fifth sensor 99 detects the paper, a feedback signal is sent to the controller 4, and the controller 4 controls the fifth air cylinder 97 on the conveying device 7 on the front side of the cutting platform 76 to drive the driven roller 96 moves down until the driven roller 96 cooperates with the driving roller 94, at the same time the controller 4 controls the fourth motor 95 to drive the driving roller 94 to rotate, the driving roller 94 and the driven roller 96 can clamp and convey the paper The paper passes through the conveying device 7 on the front side of the cutting platform 76. When the paper completely passes through the fifth sensor 99, the fifth sensor 99 cannot detect the paper. At this time, the controller 4 receives this signal fed back by the fifth sensor 99, and the controller 4 Control the fifth air cylinder 97 on the conveying device 7 on the rear side of the cutting platform 76 to drive the driven roller 96 to move down until the driven roller 96 cooperates with the driving roller 94, and control the fourth motor 95 to drive the driving roller 94 to rotate At the same time, the fifth air cylinder 97 on the conveying device 7 on the front side of the cutting platform 76 is controlled to drive the driven roller 96 to move up, and the fourth motor 95 on the conveying device 7 is controlled to stop working. The conveying device 7 is clamped and conveyed, which can ensure that the conveying device 7 always provides power for the paper when the paper passes through the cutting mechanism 3, and ensures that the cutting mechanism 3 can cut the paper. A cursor for use with the sixth sensor 100 is arranged on the paper next to the position to be cut in each row. When the paper passes through the sixth sensor 100, the sixth sensor 100 detects the above-mentioned cursor position, and then feeds back a signal to the controller 4 to control the The controller 4 controls the cutting mechanism 3 to cut the paper, so as to realize the function of cutting and positioning. When the cutting mechanism 3 cuts the paper, the fourth motor 95 on the conveying device 7 that provides power for the paper stops working, so that the paper temporarily stops moving, so as to ensure the accuracy of the cutting mechanism 3 when cutting the paper and avoid cutting Paper movement during the process affects the cutting position.

The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the art of the present invention can make various modifications or supplements to the described specific embodiments or replace them in similar ways, but will not deviate from the spirit of the present invention or go beyond the appended claims the defined range.

Claims (10)

1. A full-automatic paper cutting machine is characterized by comprising an automatic feeding mechanism, a deviation-rectifying positioning mechanism with a deviation-rectifying positioning function and a conveying function, a cutting mechanism with a cutting function and a controller with a feedback control function, wherein a paper grabbing device capable of moving single paper from the automatic feeding mechanism to the deviation-rectifying positioning mechanism is arranged between the automatic feeding mechanism and the deviation-rectifying positioning mechanism; the paper sheet deviation correcting and positioning device is characterized in that a pressing device for preventing paper sheets from floating is arranged on the deviation correcting and positioning mechanism, a conveying device for conveying the paper sheets to be cut through the cutting mechanism is further arranged on the cutting mechanism, and the controller is connected with the automatic feeding mechanism, the deviation correcting and positioning mechanism, the paper sheet grabbing device, the cutting mechanism and the conveying device respectively.

2. The full-automatic paper cutting machine according to claim 1, wherein the automatic feeding mechanism comprises a first frame, a feeding port is arranged on the first frame, a material platform which can only move up and down and a lifting driving device which can drive the material platform to lift and is close to the feeding port are arranged in the first frame, a first sensor for detecting the height of paper above the material platform and a second sensor for detecting whether the paper exists above the material platform are arranged above the material platform, and the lifting driving device, the first sensor and the second sensor are connected with the controller; the lifting driving device comprises a connecting seat fixedly arranged on the material platform, a vertically arranged lead screw is connected to the connecting seat in a screwed mode, the lower end of the lead screw is connected with a first motor for driving the lead screw to rotate, the first motor is connected with the controller, a first guide rail vertically arranged is fixedly connected to the first rack, and a sliding block capable of sliding along the first guide rail is fixedly arranged on the material platform.

3. The full-automatic paper cutting machine according to claim 2, characterized in that two parallel cross bars are fixedly arranged on the front side and the rear side of the upper end surface of the material platform, and a supporting plate is fixedly arranged between the upper ends of the two cross bars; the paper width adjusting device is arranged above the material platform and comprises a first guide rod which is fixedly arranged on the first frame and is parallel to the cross rod, two width adjusting plates which are parallel to each other are arranged on the first guide rod, the width adjusting plates are perpendicular to the first guide rod, one width adjusting plate is fixedly arranged on the first guide rod, and the other width adjusting plate is sleeved on the first guide rod and can slide along the first guide rod; the first rack is also provided with a screw capable of rotating automatically, the screw is parallel to the first guide rod, a width adjusting plate sleeved on the first guide rod is in threaded connection with the screw, when the upper end surface of the supporting plate moves to a position higher than the lower end of the width adjusting plate along with the material platform, the supporting plate is positioned between the two width adjusting plates, and the width adjusting plate is positioned between the two cross rods; the end part of the screw rod is fixedly connected with a knob for driving the screw rod to rotate; the first sensor is fixedly arranged on the first guide rod.

4. The full-automatic paper cutting machine according to claim 3, characterized in that the paper gripping device comprises a first cylinder transversely and fixedly arranged on the first frame, a transversely arranged beam is vertically and fixedly connected to the outer end of a piston rod of the first cylinder, and the piston rod of the first cylinder is perpendicular to the first guide rod; the first rack is also provided with a guide hole, a second guide rod parallel to the piston rod of the first cylinder is sleeved in the guide hole, and the outer end of the second guide rod is fixedly connected with the cross beam; a second air cylinder which is vertically arranged is fixedly arranged on the cross beam, the lower end of a piston rod of the second air cylinder is fixedly connected with a transverse pipe with a hollow structure, a plurality of hollow pipes which are vertically arranged and communicated with the inner cavity of the transverse pipe are fixedly arranged on the transverse pipe, the lower end of each hollow pipe is fixedly connected with a rubber sucker with a horn-shaped structure and an opening which is downwards arranged, a hose is connected onto the transverse pipe, an air pump is fixedly connected onto the hose, and when the piston rod of the first air cylinder does not extend outwards, the second air cylinder is positioned right above the feeding hole; the first frame is also fixedly provided with a buffer for buffering the cross beam and a third sensor for detecting the position of the cross beam; the first air cylinder, the second air cylinder, the air pump and the third sensor are respectively connected with the controller.

5. The full-automatic paper cutting machine according to claim 4, characterized in that the deviation-correcting positioning mechanism comprises a deviation-correcting table, two first grooves which are parallel to each other are arranged on the deviation-correcting table at a position close to the automatic feeding mechanism, a conveyor belt is arranged in each first groove, the conveying direction of the conveyor belt is parallel to the cross beam, and each conveyor belt is connected with a second motor for driving the conveyor belt to run; the correcting table is also provided with a second groove perpendicular to the first groove, a bottom plate which can only move back and forth along the length direction of the second groove is arranged in the second groove, the upper end face of the bottom plate is flush with the upper end face of the correcting table, a through hole is formed in the bottom plate, a third air cylinder which drives the bottom plate to move along the length direction of the second groove is further fixedly arranged below the correcting table, a third guide rod is fixedly arranged on the lower end face of the correcting table, a fixed block fixedly arranged on the lower end face of the bottom plate is sleeved on the third guide rod, a pressing plate parallel to the bottom plate is arranged above the bottom plate, a vertically arranged fourth air cylinder is further fixedly arranged below the correcting table, and a piston rod of the fourth air cylinder penetrates through the through hole in the bottom plate to be fixedly connected with the pressing; the bottom plate is also provided with a limiting block for limiting paper, the limiting block is perpendicular to the conveying direction of the conveying belts, two fourth sensors for detecting the position of the paper are arranged above the deviation rectifying table, and the two fourth sensors are respectively positioned on the outer sides of the two conveying belts; the second motor, the third cylinder, the fourth cylinder and the fourth sensor are respectively connected with the controller; the paper-sticking-preventing separation roller is further installed on the first rack, the separation roller is parallel to the cross beam, anti-skidding lines are arranged on the surface of the separation roller, the separation roller is located between the feeding port and the deviation rectifying platform, and the separation roller is higher than the height of paper on the material platform.

6. The full-automatic paper cutting machine according to claim 5, characterized in that the pressing device comprises at least two mounting frames located above the deviation rectifying table, a gap is reserved between the mounting frames and the deviation rectifying table, mounting holes penetrating through the upper end and the lower end of the mounting frames are formed in the mounting frames, the mounting holes are located right above the conveyor belt, two steel balls longitudinally arranged are arranged in the mounting holes, the diameter of each steel ball is equal to that of each mounting hole, and the diameter of each steel ball is larger than the height of the gap; a base is fixedly arranged between the mounting frame and the deviation rectifying table; the mounting frame is fixedly connected with a mounting rod parallel to the cross beam, a first elastic pressing sheet capable of being pressed on the deviation rectifying table is fixedly arranged on the mounting rod, a connecting beam is fixedly connected to the mounting frame, a second elastic pressing sheet capable of being pressed on the deviation rectifying table is fixedly connected to the connecting beam, the orientation of the first elastic pressing sheet is opposite to the conveying direction of the conveying belt, the front end of the first elastic pressing sheet inclines upwards, and the second elastic pressing sheet is arranged along the conveying direction of the conveying belt.

7. The full-automatic paper cutting machine according to claim 6, characterized in that a sensor position adjusting device for adjusting the position of the fourth sensor is arranged between each fourth sensor and the mounting frame, the sensor position adjusting device comprises a second guide rail parallel to the conveying direction of the conveyor belt, a first adjusting plate capable of sliding along the second guide rail is arranged on the second guide rail, an adjusting seat is further fixedly arranged on the mounting frame, a spiral micrometer head capable of driving the first adjusting plate to be away from the adjusting seat is fixedly connected to the adjusting seat, and a first reset spring capable of driving the first adjusting plate to reset is arranged between the adjusting seat and the first adjusting plate; a third guide rail perpendicular to the second guide rail is fixedly connected to the first adjusting plate, a second adjusting plate capable of sliding along the third guide rail is arranged on the third guide rail, a locking bolt capable of locking and fixing the second adjusting plate on the third guide rail is arranged between the second adjusting plate and the third guide rail, and the fourth sensor is fixedly arranged at the end part of the second adjusting plate and faces the deviation correcting table;

still be equipped with the bar that is parallel with conveyer belt direction of delivery on the bottom plate and lead to the groove, the fixed plate that is equipped with on the bottom plate, the fixed plate setting is in one side of stopper back to conveyor, and the spiro union has the adjusting bolt parallel with conveyer belt direction of delivery on the fixed plate, and the adjusting bolt tip is hugged closely on the stopper, fixedly connected with is parallel with conveyer belt direction of delivery's fourth guide bar on the bottom plate, the stopper cup joints on the fourth guide bar and can slide along the fourth guide bar, be equipped with the second reset spring that can drive the stopper and remove towards the fixed plate between stopper and the bottom plate.

8. The full-automatic paper cutting machine according to claim 7, wherein the cutting mechanism comprises a second frame, a cutting platform is fixedly connected to the second frame, a first transverse plate parallel to the upper end surface of the cutting platform is arranged above the cutting platform, two parallel mounting limit strips are fixedly connected to the lower end of the first transverse plate, a mounting plate is arranged below the first transverse plate, two mounting through grooves corresponding to the mounting limit strips are arranged on the upper end surface of the mounting plate, the mounting limit strips can only be embedded into the corresponding mounting through grooves from the end parts of the mounting through grooves, two positioning baffles corresponding to the mounting through grooves are also fixedly connected to the first transverse plate, when the mounting plate is mounted on the mounting limit strips, one end of the mounting through grooves is sealed by the positioning baffles, the mounting plate is attached to the positioning baffles, and a cutter plate is fixedly connected to the lower end of the mounting plate through screws, the lower end face of the cutter plate is fixedly connected with a cutting cutter matched with the cutting platform, the lower end face of the cutter plate is also fixedly connected with a buffer sponge, and the thickness of the buffer sponge when the buffer sponge is not deformed is larger than the height of the cutting cutter; the cutting platform is characterized in that a plurality of guide posts which can only move along the length direction are arranged on the second rack, all the guide posts are vertically arranged, the upper ends of the guide posts are fixedly connected with the first transverse plate, a second transverse plate parallel to the first transverse plate is arranged below the cutting platform, the lower ends of the guide posts are fixedly connected with the second transverse plate, a cam capable of driving the second transverse plate to move downwards is further arranged in the second rack, a third transverse plate parallel to the second transverse plate is further fixedly arranged on the second rack, the third transverse plate is positioned right below the second transverse plate, and a third motor used for driving the cam to rotate is fixedly connected onto the third transverse plate; the utility model discloses a set up the motor, including first diaphragm, second diaphragm, terminal surface, limiting rod, third diaphragm, third reset spring coils and sets up on the limiting rod, the gag lever post of the vertical setting of terminal surface still fixedly connected with under the second diaphragm, fixedly connected with and third diaphragm terminal surface complex limiting plate under the gag lever post, still be equipped with the third reset spring that can drive second diaphragm rebound between third diaphragm and the second diaphragm, the third reset spring coils the setting and is in on the gag lever post, the third motor is connected with the.

9. The full-automatic paper cutting machine according to claim 8, characterized in that the conveying devices are two sets, the two sets of conveying devices are respectively arranged on the front side and the rear side of the cutting platform, each conveying device comprises a driving roller capable of rotating on a second frame, a fourth motor for driving the driving roller to rotate is fixedly arranged on the second frame, a driven roller matched with the driving roller is arranged above the driving roller, a fifth cylinder for driving the driven roller to lift up and down is further fixedly arranged on the second frame, a bearing is arranged on a piston rod of the fifth cylinder, and the end part of the driven roller is sleeved on the bearing; a fifth sensor and a sixth sensor for detecting the position of the paper are fixedly arranged on the second rack, and the fifth sensor and the sixth sensor are both positioned on the front side of the conveying device on the front side of the cutting platform; and the fourth motor, the fifth cylinder, the fifth sensor and the sixth sensor are respectively connected with the controller.

10. The full-automatic paper cutting machine according to claim 9, wherein a material receiving platform is fixedly arranged at the rear end of the second frame of the cutting mechanism, the material receiving platform is inclined downwards from front to back, the front end of the material receiving platform is lower than the driving roller of the conveying device at the rear side of the cutting platform, and two limiting stoppers for limiting paper are fixedly connected to the material receiving platform.

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