CN212706895U

CN212706895U - Digital printing paper cutting device

Info

Publication number: CN212706895U
Application number: CN202021571212.2U
Authority: CN
Inventors: 张晓娜; 刘勇兵
Original assignee: Hebei Quanyinde Digital Technology Co ltd
Current assignee: Hebei Quanyinde Digital Technology Co ltd
Priority date: 2020-08-03
Filing date: 2020-08-03
Publication date: 2021-03-16
Anticipated expiration: 2030-08-03

Abstract

The utility model discloses a digital printing paper cutting device, which comprises a frame body, a left paper cutting structure, a right paper cutting structure and a longitudinal paper cutting structure; a frame body: the four corners of the lower surface of the rack body are symmetrically provided with fixing legs, the front inner wall and the rear inner wall of the rack body are rotatably connected with two ends of a rotating shaft which is symmetrically arranged left and right longitudinally through bearings, the left end of the front side surface of the rack body is provided with a motor III, the rear end of an output shaft of the motor III penetrates through a through hole at the left end of the front side surface of the rack body and is fixedly connected with the front end of the rotating shaft at the left side, the two rotating shafts are driven by a conveyor belt, the middle parts of the left side surface and the right; control the paper cutting structure: the left end of the output shaft of the motor II is fixedly connected with the right side surfaces of the left and right paper cutting structures correspondingly; the digital paper cutting device controls the cutting of printing paper in the transverse direction and the longitudinal direction, and ensures thorough cutting.

Description

Digital printing paper cutting device

Technical Field

The utility model relates to a technical field is tailor in the printing, specifically is a digital printing paper cutting device.

Background

Cutting is an important process of processing after printing in the digital printing industry, firstly, cutting of paper is carried out, the number is the same as that of traditional printing, a paper cutting machine is also needed to cut the paper or finished products into required specification and size, the existing paper cutting machine is various in the market, the existing paper cutting device is manual and also fully automatic under the control of a computer, the existing paper cutting device cannot control the cutting of printing paper in the transverse direction and the longitudinal direction, the operation is complex, the operation amount of personnel is increased, the cutting is thorough, the size of the cutting cannot be adjusted according to requirements, the application range is limited, the movement of the printing paper during the cutting cannot be limited, the deviation phenomenon cannot be avoided during the cutting, the position of the printing paper in the device cannot be controlled, the cutting of the printing paper is not convenient, and therefore the realization of the digital printing paper cutting device for solving the problems is imperative.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome current defect, provide a digital printing paper cutting device, control is horizontal and vertical direction on to tailorring of printing paper, the personnel's operation of being convenient for guarantees that the cutting is thorough, can effectively solve the problem in the background art.

In order to achieve the above object, the utility model provides a following technical scheme: a digital printing paper cutting device comprises a frame body, a left paper cutting structure, a right paper cutting structure and a longitudinal paper cutting structure;

a frame body: the four corners of the lower surface of the rack body are symmetrically provided with fixing legs, the front inner wall and the rear inner wall of the rack body are rotatably connected with two ends of a rotating shaft which is symmetrically arranged left and right longitudinally through bearings, the left end of the front side surface of the rack body is provided with a motor III, the rear end of an output shaft of the motor III penetrates through a through hole at the left end of the front side surface of the rack body and is fixedly connected with the front end of the rotating shaft at the left side, the two rotating shafts are driven by a conveyor belt, the middle parts of the left side surface and the right;

control the paper cutting structure: the left end of the output shaft of the motor II is fixedly connected with the right side surfaces of the left and right paper cutting structures correspondingly;

longitudinal paper cutting structure: the paper cutting device is arranged at the upper ends of the left and right paper cutting structures;

wherein: still include the PLC controller, the PLC controller sets up in the leading flank left end of support body, and external power supply is connected to the input electricity of PLC controller, and the output of PLC controller is connected to the equal electricity of input of motor two and motor three, controls horizontal and vertical direction on tailorring to printing paper, and the personnel of being convenient for operate, guarantees that the cutting is thorough, adjusts the size of tailorring according to the demand, and the practicality is stronger, and the removal of restriction printing paper when tailorring avoids tailorring the off normal, and the position of control printing paper is convenient for tailor printing paper.

Furthermore, the left and right paper cutting structure comprises a first screw rod, a first moving block and a first sliding groove, an output shaft of a second motor penetrates through a through hole in the right side face of the corresponding fixed plate, the first screw rod is arranged at the left end, the left end of the first screw rod is rotatably connected with the right side face of the corresponding left fixed plate through a bearing, the first moving block is in threaded connection with the middle of the first screw rod, the first sliding groove is arranged on the front inner wall and the rear inner wall of the frame body in a symmetrical mode, and the first moving block is in sliding connection with the corresponding first sliding groove to control.

Further, control the paper cutting structure and still include fixed pipe one, elastically positioned piece, sliding tube one and cutting knife piece one, the medial surface of movable block one all is equipped with fixed pipe one, and equal sliding connection has sliding tube one in the spout of fixed pipe one, and the upper surface of sliding tube one all is equipped with evenly distributed's elastically positioned piece through inside spring, and the upper surface of fixed pipe one all is equipped with the locating hole that corresponds with the elastically positioned piece position, and the lower surface of sliding tube one all is equipped with cuts cutting knife piece one, adjusts the size of tailorring according to the demand, and the practicality is stronger.

Further, the longitudinal paper cutting structure comprises a second moving block, a first motor, a first driven helical gear, a first driving helical gear, a second screw and a U-shaped plate, wherein the first screw is in threaded connection with the second moving block, the second moving block is in sliding connection with the corresponding first sliding groove, the lower surface of the second moving block at the rear side is provided with the first motor, an output shaft of the first motor penetrates through an inner through hole of the second moving block at the rear side and is provided with the driving helical gear at the upper end, the upper surface of the second moving block is connected with the lower fixed surface of the U-shaped plate, the middle of the front inner wall and the rear inner wall of the U-shaped plate are connected with the second screw in a rotating mode through a bearing, the rear end of a shaft body of the second screw is provided with the driven helical gear, the driving helical gear.

Furthermore, the longitudinal paper cutting structure further comprises a second cutting blade, a third moving block and a second sliding groove, the second screw rod is in threaded connection with a threaded hole in the third moving block, the second sliding groove is longitudinally formed in the inner wall of the top end of the U-shaped plate, a protruding block on the upper surface of the third moving block is in sliding connection with the second sliding groove, the second cutting blade is arranged on the lower surface of the third moving block, the longitudinal cutting of the printing paper is completed, and the complete cutting is guaranteed.

Further, still include dead lever, fixed pipe two, electric putter and slip pipe two, the inside right side top of support body is equipped with fore-and-aft dead lever, and the left surface of dead lever is equipped with fixed pipe two, and sliding connection has slip pipe two in the sliding port of fixed pipe two, and the lower surface of slip pipe two is equipped with electric putter, and the output of PLC controller is connected to electric putter's input electricity, and the skew is avoided tailorring in the removal of restriction printing paper when tailorring.

Further, still include range sensor, the lower surface center department of dead lever is equipped with range sensor, and PLC controller's input is connected to range sensor's output electricity, controls the position of printing paper, is convenient for tailor printing paper.

Compared with the prior art, the beneficial effects of the utility model are that: the digital printing paper cutting device has the following advantages:

1. the first sliding pipe is controlled to slide in the first fixed pipe by pressing the elastic positioning block, the elastic positioning block is popped up by utilizing the positioning hole on the upper surface of the first fixed pipe, the width of paper to be cut is adjusted according to the width of the paper to be cut, the sizes of the paper with different sizes can be cut, the motor two is controlled to synchronously start corotation, the motor two drives the corresponding screw rod to rotate at the first time, the screw rod is in threaded connection with the threaded hole inside the corresponding first moving block, the first moving block is in sliding connection with the corresponding sliding groove, therefore, the moving block is driven to move towards the left side of the frame body under the rotation of the first screw rod, and in the moving process of the first moving block, the first cutting knife piece realizes transverse cutting work on the.

2. The threaded holes in the moving block II are in threaded connection with the corresponding screw rods I, the moving block II is in sliding connection with the corresponding sliding grooves I, and the upper surfaces of the moving block II are fixedly connected with the lower surfaces of the U-shaped plates.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic sectional view of the present invention;

FIG. 3 is a schematic view of the left and right paper cutting structure of the present invention;

FIG. 4 is a left side view structure diagram of the left and right paper cutting structure of the present invention;

fig. 5 is a schematic view of the vertical paper cutting structure of the present invention.

In the figure: the paper cutting machine comprises a frame body 1, a PLC (programmable logic controller) 2, a left and right paper cutting structure 3, a first screw rod 31, a first moving block 32, a first fixed pipe 33, a first elastic positioning block 34, a first sliding pipe 35, a first cutting blade 36, a first chute 37, a longitudinal paper cutting structure 4, a second moving block 41, a first motor 42, a driven helical gear 43, a driving helical gear 44, a second cutting blade 45, a third moving block 46, a second chute 47, a second screw rod 48, a U-shaped plate 49, a distance measuring sensor 5, a second motor 6, a second fixed plate 7, a fixed leg 8, a third motor 9, a conveyor belt 10, a rotating shaft 11, a fixed rod 12, a second fixed pipe 13, an electric push rod 14.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: a digital printing paper cutting device comprises a frame body 1, a left paper cutting structure 3, a right paper cutting structure 3 and a longitudinal paper cutting structure 4;

frame body 1: the four corners of the lower surface of the frame body are symmetrically provided with fixing legs 8, the front inner wall and the rear inner wall of the frame body 1 are rotatably connected with two ends of a rotating shaft 11 which are symmetrically arranged left and right in a longitudinal direction through bearings, the left end of the front side surface of the frame body 1 is provided with a motor III 9, the rear end of an output shaft of the motor III 9 penetrates through a through hole at the left end of the front side surface of the frame body 1 and is fixedly connected with the front end of the rotating shaft 11 at the left side surface, the two rotating shafts 11 are driven by a conveyor belt 10, the middle parts of the left side surface and the right side surface of the frame body 1 are respectively provided with a fixing plate 7 which is symmetrical front and back, the right side surface of the fixing plate 7 at the right side surface is provided with a motor II 6, the fixing legs 8 play a role of supporting and stabilizing;

left and right paper cutting structure 3: the paper cutting device is characterized by being respectively and symmetrically arranged on the inner wall of a frame body 1 and the inner side surface of a fixing plate 7 in a front-back manner, the left end head of an output shaft of a motor II 6 is fixedly connected with the right side surface of a corresponding left paper cutting structure 3, the left paper cutting structure 3 comprises a screw rod I31, a moving block I32 and a sliding groove I37, the output shaft of the motor II 6 penetrates through a through hole on the right side surface of the corresponding fixing plate 7, the screw rod I31 is arranged at the left end head, the left end head of the screw rod I31 is rotatably connected with the right side surface of the corresponding left fixing plate 7 through a bearing, the middle part of the screw rod I31 is in threaded connection with the moving block I32, the transverse sliding groove I37 is symmetrically arranged on the front and back inner wall of the frame body 1, the moving block I32 is in sliding connection with the corresponding sliding groove I37, the left paper cutting structure 3 further, the sliding holes in the sliding holes of the first fixed pipe 33 are connected with first sliding pipes 35 in a sliding mode, the upper surfaces of the first sliding pipes 35 are provided with elastic positioning blocks 34 which are uniformly distributed through internal springs, the upper surfaces of the first fixed pipes 33 are provided with positioning holes corresponding to the positions of the elastic positioning blocks 34, the lower surfaces of the first sliding pipes 35 are provided with first cutting blades 36, the first sliding pipes 35 are controlled to slide in the first fixed pipes 33 by pressing the elastic positioning blocks 34, the elastic positioning blocks 34 are popped out through the positioning holes in the upper surfaces of the first fixed pipes 33, the length of the first sliding pipes 35 is adjusted according to the width of paper to be cut, after the adjustment is completed, the second motor 6 is controlled to synchronously start rotating forwards, the second motor 6 drives the corresponding first screw rods 31 to start rotating, and as the first screw rods 31 are in threaded connection with the threaded holes in the corresponding first moving blocks 32, the first moving blocks 32 are in sliding connection with the corresponding first, the two symmetrical first moving blocks 32 are driven to synchronously move towards the left side of the frame body 1 at the same time, and in the moving process of the first moving blocks 32, the first cutting blade 36 realizes transverse cutting work on the paper to be cut;

longitudinal paper cutting structure 4: the longitudinal paper cutting structure 4 comprises a moving block two 41, a motor one 42, a driven bevel gear 43, a driving bevel gear 44, a screw rod two 48 and a U-shaped plate, wherein the screw rod one 31 is in threaded connection with the moving block two 41, the moving block two 41 is in sliding connection with a corresponding sliding chute one 37, the lower surface of the moving block two 41 at the rear side is provided with the motor one 42, an output shaft of the motor one 42 penetrates through a through hole in the moving block two 41 at the rear side and is provided with the driving bevel gear 44 at the upper end, the upper surface of the moving block two 41 is fixedly connected with the lower surface of the U-shaped plate 49, the middle part of the front inner wall and the rear inner wall of the U-shaped plate 49 is rotatably connected with the screw rod two 48 through a bearing, the driven bevel gear 43 is arranged at the rear end of a shaft body of the screw rod two 48, the driving bevel gear 44 is in meshed connection with the driven bevel, the second screw rod 48 is in threaded connection with a threaded hole in the third moving block 46, the inner wall of the top end of the U-shaped plate 49 is provided with a second longitudinal sliding groove 47, a convex block on the upper surface of the third moving block 46 is in sliding connection with the second sliding groove 47, the lower surface of the third moving block 46 is provided with a second cutting blade 45, as the threaded hole in the second moving block 41 is in threaded connection with the corresponding first screw rod 31, the second moving block 41 is in sliding connection with the corresponding first sliding groove 37, and the upper surface of the second moving block 41 is fixedly connected with the lower surface of the U-shaped plate 49, under the positive rotation of the second motor 6, the second moving block 41, the first moving block 32 and the U-shaped plate 49 are driven to synchronously move towards the left side of the frame body 1, when the first moving block 32 moves to a distance between the remaining second moving block 41 and the first moving block 32 on the corresponding first screw rod 31 from the, the driving bevel gear 44 is driven to rotate, the driving bevel gear 44 is meshed with the driven bevel gear 43, the front end and the rear end of the second screw rod 48 are rotatably connected with the front inner wall and the rear inner wall of the U-shaped plate 49 through bearings, the second screw rod 48 is driven to rotate under the rotation of the driving bevel gear 44, the second screw rod 48 is in threaded connection with a threaded hole in the third moving block 46, and a convex block on the upper surface of the third moving block 46 is in sliding connection with the second sliding groove 47, so that the third moving block 46 is driven to move towards the front side of the frame body 1 under the rotation of the second screw rod 48, the second cutting blade 45 is driven to move forwards from back to finish longitudinal cutting work on paper to be cut, the first motor 42 is controlled to rotate reversely after the cutting is finished, the second cutting blade 45 is controlled;

wherein: still include PLC controller 2, PLC controller 2 sets up in the leading flank left end of support body 1, and external power source is connected to PLC controller 2's input electricity, and PLC controller 2's output is connected to the equal electricity of input of motor two 42, motor two 6 and motor three 9, and motor one 42 realizes vertically tailorring to printing paper, and motor two 6 realizes transversely tailorring to printing paper, and motor three 9 realizes waiting the printing paper translation of tailorring in the device.

Wherein, still include dead lever 12, fixed two 13 of pipe, electric putter 14 and two 15 of sliding tube, the inside right side top of support body 1 is equipped with fore-and-aft dead lever 12, the left surface of dead lever 12 is equipped with fixed two 13 of pipe, sliding connection has two 15 of sliding tube in the sliding opening of fixed two 13 of pipe, the lower surface of two 15 of sliding tube is equipped with electric putter 14, PLC controller 2's output is connected to electric putter's 14 input electricity, because sliding connection has two 15 of sliding tube in the sliding opening of fixed two 13 of pipe, control two 15 of sliding tube extend to suitable length, control electric putter 14 extends, upper surface in close contact with of flexible end top and paper up to electric putter 14, prevent that the paper from taking place the skew when cutting.

Wherein, still including range sensor 5, the lower surface center department of dead lever 12 is equipped with range sensor 5, and PLC controller 2's input is connected to range sensor 5's output electricity, and the distance between 5 real-time supervision of range sensor and the conveyer belt 10, after the paper removed under range sensor 5, the distance between range sensor 5 and the conveyer belt 10 changed, and signals give PLC controller 2.

When in use: the frame body 1 is placed on a horizontal working ground by using the fixed legs 8, the motor II 6 on the right side surface of the fixed plate 7 is controlled to synchronously start to reversely rotate at the same time, the motor II 6 drives the corresponding screw rod I31 to start to rotate, the screw rod I31 is in threaded connection with a threaded hole in the corresponding moving block I32, the moving block I32 is in sliding connection with the corresponding chute I37, therefore, under the rotation of the screw rod I31, the moving block I32 is driven to move towards the right side of the frame body 1, the running time of the motor II 6 is controlled, the left and right paper cutting structures 3 are moved to the rightmost side of the frame body 1, the transverse section of the paper to be cut is kept parallel to the frame body 1 at the moment, the paper to be cut is placed from the left side of the frame body 1 to the upper surface of the conveyor belt 10, the positioning groove on the upper surface of the conveyor belt 10 is used for preventing the, because the two rotating shafts 11 are driven by the conveyor belt 10, the conveyor belt 10 is driven to rotate clockwise under the operation of the motor III 9, the paper to be cut is driven to move towards the right side of the frame body 1, at the moment, the distance between the distance measuring sensor 5 and the conveyor belt 10 is monitored in real time, when the paper moves to the position right below the distance measuring sensor 5, the distance between the distance measuring sensor 5 and the conveyor belt 10 is changed, a signal is sent to the PLC controller 2, the motor III 9 is controlled to stop operating, because the sliding opening of the fixed pipe II 13 is connected with the sliding pipe II 15 in a sliding way, the sliding pipe II 15 is controlled to extend to a proper length, the electric push rod 14 is controlled to extend until the top end of the telescopic end of the electric push rod 14 is in close contact with the upper surface of the paper, the paper is prevented from deviating during cutting, at the moment, the elastic positioning block 34 is pressed to control the sliding pipe I35 to slide in the, according to the width of the paper to be cut, the length of the first sliding tube 35 is adjusted, after the adjustment is completed, the second motor 6 is controlled to synchronously start to rotate forwards at the same time, the second motor 6 drives the two symmetrical first moving blocks 32 to synchronously move towards the left side of the frame body 1 at the same time, in the moving process of the first moving blocks 32, the first cutting knife 36 realizes transverse cutting work on the paper to be cut, meanwhile, due to the fact that threaded holes in the second moving blocks 41 are in threaded connection with the corresponding first screw rods 31, the second moving blocks 41 are in sliding connection with the corresponding first sliding grooves 37, the upper surfaces of the second moving blocks 41 are fixedly connected with the lower surface of the U-shaped plate 49, the second moving blocks 41, the first moving blocks 32 and the U-shaped plate 49 are driven to synchronously move towards the left side of the frame body 1 at the same time under the electric push rod 14 in the moving process, the electric push rod 14 is controlled to retract to the extent that the, at the moment, the paper to be cut is pressed by hands to prevent deviation, after the U-shaped plate 49 passes by, the electric push rod 14 is controlled to continue to extend to continue to press the paper to be cut, when the moving block I32 moves to a distance between the remaining moving block II 41 and the moving block I32 on the corresponding screw rod I31, the motor II 6 is controlled to synchronously stop running, the motor I42 is controlled to start to rotate forwards, the driving bevel gear 44 is driven to start to rotate, the driving bevel gear 44 is meshed with the driven bevel gear 43, the front end and the rear end of the screw rod II 48 are rotationally connected with the front inner wall and the rear inner wall of the U-shaped plate 49 through bearings, therefore, under the rotation of the driving bevel gear 44, the screw rod II 48 is driven to start to rotate, because the screw rod II 48 is in threaded connection with the threaded hole in the moving block III 46, the bump on the upper surface of the moving block, the moving block III 46 is driven to start to move towards the front side of the frame body 1, so that the cutting blade II 45 is driven to move forwards from back to finish longitudinal cutting work on paper to be cut, the motor I42 is controlled to start to rotate reversely after the cutting is finished, the cutting blade II 45 is controlled to move forwards and backwards to ensure complete longitudinal cutting, the motor III 9 is controlled to continue to operate at the moment, the symmetrical cutting blade I36 performs cutting work on the residual uncut paper under the clockwise rotation of the conveying belt 10, the motor III 9 is controlled to stop operating after the cutting is finished, the electric push rod 14 is controlled to contract and reset, the motor II 6 is controlled to synchronously start to rotate reversely at the same time, the left paper cutting structure 3 and the right paper cutting structure 3 move to the rightmost side of the frame body 1 again, the cut printing paper is taken away from the conveying belt 10, and one-.

It is to be noted that the specific model of the PLC controller 2 disclosed in this embodiment is siemens S7-200, the first motor 42, the second motor 6, and the third motor 9 may be motors of 5IK150RA-CF, a wepont electromechanical company, a guan city, an infrared distance measuring sensor of charpy GP2D12 may be used as the distance measuring sensor 5, a kelite push rod mechanical manufacturing company, a DTW300 electric push rod, a tin-free city, a kelite push rod mechanical manufacturing company, and a method commonly used in the prior art may be adopted for the PLC controller 2 to control the first motor 42, the second motor 6, the third motor 9, the electric push rod 14, and the distance measuring sensor 5 to operate.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A digital printing paper cutting device which is characterized in that: comprises a frame body (1), a left paper cutting structure, a right paper cutting structure (3) and a longitudinal paper cutting structure (4);

frame body (1): the four corners of the lower surface of the frame body are symmetrically provided with fixing legs (8), the front inner wall and the rear inner wall of the frame body (1) are rotatably connected with two ends of a rotating shaft (11) which are symmetrically arranged left and right longitudinally through bearings, the left end of the front side surface of the frame body (1) is provided with a motor III (9), the rear end of an output shaft of the motor III (9) penetrates through a through hole at the left end of the front side surface of the frame body (1) and is fixedly connected with the front end of the rotating shaft (11) on the left side, the two rotating shafts (11) are driven through a conveyor belt (10), the middle parts of the left side surface and the right side surface of the frame body (1) are respectively;

left and right paper cutting structure (3): the left end of the output shaft of the motor II (6) is fixedly connected with the right side surfaces of the corresponding left and right paper cutting structures (3);

longitudinal paper cutting structure (4): the paper cutting device is arranged at the upper ends of the left and right paper cutting structures (3);

wherein: still include PLC controller (2), PLC controller (2) set up in the leading flank left end of support body (1), and external power source is connected to the input electricity of PLC controller (2), and the output of PLC controller (2) is connected to the equal electricity of input of motor two (6) and motor three (9).

2. A digital printing cutting apparatus according to claim 1, wherein: the left and right paper cutting structure (3) comprises a first screw rod (31), a first moving block (32) and a first sliding groove (37), an output shaft of a second motor (6) penetrates through a through hole in the right side face of the corresponding fixing plate (7) and is provided with the first screw rod (31) at the left end, the left end of the first screw rod (31) is rotatably connected with the right side face of the corresponding left fixing plate (7) through a bearing, the first moving block (32) is in threaded connection with the middle of the first screw rod (31), the first transverse sliding groove (37) is symmetrically arranged on the front inner wall and the rear inner wall of the frame body (1), and the first moving block (32) is in sliding connection with the corresponding first sliding.

3. A digital printing cutting apparatus according to claim 2, wherein: the left and right paper cutting structure (3) further comprises a first fixed pipe (33), a first elastic positioning block (34), a first sliding pipe (35) and a first cutting blade (36), the first fixed pipe (33) is arranged on the inner side face of the first moving block (32), the first sliding pipe (35) is connected into a sliding opening of the first fixed pipe (33) in a sliding mode, the elastic positioning blocks (34) which are uniformly distributed are arranged on the upper surface of the first sliding pipe (35) through internal springs, positioning holes corresponding to the elastic positioning blocks (34) in position are formed in the upper surface of the first fixed pipe (33), and the first cutting blade (36) is arranged on the lower surface of the first sliding pipe (35).

4. A digital printing cutting apparatus according to claim 2, wherein: the longitudinal paper cutting structure (4) comprises a second moving block (41), a first motor (42), a second driven helical gear (43), a first driving helical gear (44), a second screw (48) and a U-shaped plate (49), wherein the first screw (31) is in threaded connection with the second moving block (41), the second moving block (41) is in sliding connection with a corresponding first sliding chute (37), the first motor (42) is arranged on the lower surface of the second moving block (41) on the rear side, an output shaft of the first motor (42) penetrates through a through hole in the second moving block (41) on the rear side, the driving helical gear (44) is arranged at the upper end of the output shaft, the upper surface of the second moving block (41) is fixedly connected with the lower surface of the U-shaped plate (49), the middle parts of the front inner wall and the rear inner wall of the U-shaped plate (49) are rotatably connected with the second screw (48) through bearings, the rear end of a shaft body of the second, the input end of the first motor (42) is electrically connected with the output end of the PLC (2).

5. The digital printing cutting apparatus according to claim 4, wherein: the longitudinal paper cutting structure (4) further comprises a second cutting blade (45), a third moving block (46) and a second sliding groove (47), the second screw (48) is in threaded connection with a threaded hole in the third moving block (46), the second longitudinal sliding groove (47) is formed in the inner wall of the top end of the U-shaped plate (49), a protruding block on the upper surface of the third moving block (46) is in sliding connection with the second sliding groove (47), and the second cutting blade (45) is arranged on the lower surface of the third moving block (46).

6. A digital printing cutting apparatus according to claim 1, wherein: still include dead lever (12), fixed pipe two (13), electric putter (14) and slip pipe two (15), the inside right side top of support body (1) is equipped with fore-and-aft dead lever (12), and the left surface of dead lever (12) is equipped with fixed pipe two (13), and sliding connection has slip pipe two (15) in the sliding opening of fixed pipe two (13), and the lower surface of slip pipe two (15) is equipped with electric putter (14), and the output of PLC controller (2) is connected to electric putter's (14) input electricity.

7. A digital printing cutting apparatus according to claim 6, wherein: still include range sensor (5), the lower surface center department of dead lever (12) is equipped with range sensor (5), and the input of PLC controller (2) is connected to the output electricity of range sensor (5).