CN112721429A

CN112721429A - Automatic change polychrome lithography apparatus

Info

Publication number: CN112721429A
Application number: CN202110019952.8A
Authority: CN
Inventors: 刘殿坤
Original assignee: Shenzhen Jundatong Office Intelligence Technology Co ltd
Current assignee: Shenzhen Jundatong Office Intelligence Technology Co ltd
Priority date: 2021-01-07
Filing date: 2021-01-07
Publication date: 2021-04-30

Abstract

The invention relates to an automatic multicolor printing device, which comprises a base, a fixed rod, a driving mechanism, a conveying mechanism and a printing mechanism, wherein the printing mechanism is arranged right above the conveying mechanism, the conveying mechanism is driven by the driving mechanism to operate to realize the conveying of workpieces, the printing mechanism is driven by the driving mechanism to operate to realize the multicolor printing of the workpieces, compared with the prior printing device, the device realizes the conveying and the printing of the workpieces through one output end, the energy is saved, meanwhile, the online printing of the workpieces is realized through the linkage of the conveying mechanism and the printing mechanism, the linkage adopts a pure mechanical structure, the stability and the service life of the device are improved, compared with the prior air blowing component, the mechanism realizes the online air blowing through the linkage with the driving mechanism, and the connection part of a connecting pipe and an exhaust pipe is sealed through a sealing unit, realize better sealed effect, improved the practicality.

Description

Automatic change polychrome lithography apparatus

Technical Field

The invention relates to an automatic multicolor printing device.

Background

The printing equipment is a general name of machinery, equipment and instruments used for producing printed matters and completing the printing process, is generally divided into three types of plate making machinery, printing machines and binding machinery, and is a machinery for completing printing and copying characters and images by using a manufactured printing plate. The printing plates used are classified into relief printing machines, lithographic printing machines, gravure printing machines, stencil printing machines, special printing machines, etc., and there are three basic types of flat-pressing, circular-pressing, and circular-pressing circular printing machines according to the type of impression.

When using, the existing printing equipment generally needs to move a printed matter to the lower part of the printing plate, then realizes printing through pressing the printing plate, and the existing printing equipment generally needs a plurality of output ends to separately drive the transmission of a workpiece and the pressing printing of the printing plate, so that the energy consumption is large, and meanwhile, the existing printing plate generally determines the position of the workpiece through a sensor, thereby realizing automatic printing.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: in order to overcome the defects of the prior art, an automatic multicolor printing device is provided.

The technical scheme adopted by the invention for solving the technical problems is as follows: an automatic multicolor printing device comprises a base, two fixed rods, a driving mechanism, a conveying mechanism and a printing mechanism, wherein the two fixed rods are respectively arranged at two ends of the base;

the driving mechanism comprises a motor, a driving shaft and a first half gear, the motor is horizontally arranged on a fixed rod, the driving shaft is arranged on the motor and penetrates through the fixed rod, the first half gear is sleeved at one end, far away from the motor, of the driving shaft, and the first half gear is in key connection with the driving shaft;

the conveying mechanism comprises a conveying belt, a first rotating gear and a conveying assembly, the conveying assembly comprises two conveying units, the two conveying units are respectively arranged on two sides of the base, each conveying unit comprises a rotating shaft and a roller, the rotating shaft is arranged above the base, the rollers are sleeved on the rotating shafts and connected with the rotating shafts in a key mode, the two rollers of the two conveying units are connected through the conveying belt in a transmission mode, the first rotating gear is sleeved on the rotating shaft of one conveying unit and connected with the rotating shaft in a key mode, and the first rotating gear is meshed with the first half gear;

the printing mechanism comprises a rotating assembly, a printing assembly and an air blowing assembly, wherein the rotating assembly comprises a rotating rod, a second rotating gear and a partition plate, the rotating rod is arranged between two fixed rods, the second rotating gear is sleeved on the rotating rod, the second rotating gear is connected with the rotating rod in a key mode, the second rotating gear is meshed with a first half gear, the partition plate is arranged on the rotating rod, the partition plate is four, the included angle formed by two adjacent partition plates is 90 degrees, the printing assembly comprises four printing units, the included angle formed by two adjacent printing units is 90 degrees, the printing units are arranged between the two adjacent partition plates, each printing unit comprises a fixed pipe, a push rod, a printing plate and a first spring, the fixed pipe is arranged on the rotating rod, one end of the push rod is arranged in the fixed pipe, the other end of the push rod extends out of the fixed pipe, and the push rod is connected with the fixed pipe in a sliding mode, the printing plate is arranged at one end of the push rod, which is positioned outside the fixed pipe, two ends of the printing plate are respectively abutted against two adjacent partition plates, the first spring is arranged in the fixed pipe, one end of the first spring is connected with the fixed pipe, the other end of the first spring is connected with the push rod, the air blowing assembly comprises a moving unit, an air blowing unit and a connecting unit, the moving unit comprises a second half gear, a rack, a positioning rod, a moving rod and a second spring, the second half gear is sleeved on the driving shaft, the second half gear is in key connection with the driving shaft, the positioning rod is arranged on the base, the moving rod is sleeved on the positioning rod, the moving rod is in sliding connection with the positioning rod, the rack is arranged on the moving rod, the rack is meshed with the second half gear, the air blowing unit comprises a sleeve, a piston rod, an air inlet pipe, an air outlet pipe, the sleeve is arranged on the fixed rod, one end of the piston rod is positioned in the sleeve, the other end of the piston rod extends out of the sleeve, the piston of the piston rod is hermetically connected with the sleeve, one end of the piston rod, which is positioned outside the sleeve, is connected with the moving rod, the gas inlet pipe and the gas outlet pipe are both arranged at the top of the sleeve, the gas inlet pipe and the gas outlet pipe are both communicated with the inside of the sleeve, the rotating rod is arranged in a hollow manner, the gas outlet pipe extends into the rotating rod, one end, which is positioned in the rotating rod, of the gas outlet pipe is coaxially arranged with the rotating shaft, the exhaust pipe is arranged at one end, which is positioned in the rotating rod, the exhaust pipe is communicated with the inside of the gas outlet pipe, the gas outlet unit comprises a baffle plate, a sealing ball, a sealing plate and a fixed block, the baffle plate, the sealing device comprises a sealing ball, a baffle plate, a sealing plate, a fixing block, a connecting unit, a torsional spring, a connecting plate, a connecting pipe and a pressing plate, wherein the sealing ball is connected with the baffle plate in a sealing manner, the sealing plate is arranged in the exhaust pipe, the two sealing plates are respectively arranged at two sides of the exhaust pipe, one end of each sealing plate is hinged with the inner wall of the exhaust pipe, the torsional spring is arranged at the hinged position of each sealing plate and the exhaust pipe, one end of each sealing plate, which is far away from the exhaust pipe, is attached to the sealing ball, the fixing block is arranged on the inner wall of the exhaust pipe, the fixing block is positioned at one side, which is close to the sealing ball, of each sealing plate is attached to the fixing block, the connecting unit comprises a, the connecting pipe is arranged on the fixed pipe, the connecting pipe is communicated with the inside of the fixed pipe, the pressing plate is arranged in the connecting pipe, the pressing plate close to the sealing ball is abutted against the sealing ball, the pressing plate is provided with a plurality of air inlets, the fixing ring is sleeved on the connecting pipe and is fixedly connected with the connecting pipe, the second magnet is sleeved on the connecting pipe and is connected with the connecting pipe in a sliding way, wherein one second magnet is arranged opposite to the first magnet, the second magnet and the first magnet are mutually attracted, the limiting rod is arranged on the second magnet, the limiting rod penetrates through the fixing ring, the limiting rod is connected with the fixing ring in a sliding manner, the third spring is sleeved on the limiting rod and is positioned between the second magnet and the fixing ring, one end of the third spring is connected with the fixing ring, and the other end of the third spring is connected with the second magnet.

In order to realize automatic control, a PLC is arranged on the base, and the motor is electrically connected with the PLC.

In order to carry out better spacing to the removal of second magnet, the gag lever post has two, and two gag lever posts set up the both ends at the second magnet respectively, the third spring has two, and two third springs are established respectively on two gag lever posts.

In order to support the rotating shaft, a bearing seat is arranged on the fixing rod, and the end part of the rotating shaft is positioned in the bearing seat.

In order to better limit the movement of the moving rod, a sliding block is arranged in the moving rod, a sliding groove is arranged on the positioning rod, the sliding block is positioned in the sliding groove, and the sliding block is connected with the sliding groove in a sliding manner.

In order to better limit the movement of the movable rod, the number of the sliding blocks is two, the two sliding blocks are respectively arranged on two sides of the movable rod, the number of the sliding grooves is two, and the two sliding blocks are respectively located in the two sliding grooves.

In order to better limit the movement of the moving rod, the cross section of the sliding block is in a dovetail shape, and the sliding groove is a dovetail groove.

In order to ensure that air only enters the sleeve through the air inlet pipe, a one-way valve is arranged at the joint of the air inlet pipe and the sleeve.

In order to ensure that the air can only be discharged through the air outlet pipe, a one-way valve is arranged at the joint of the air outlet pipe and the sleeve.

In order to better return the printing plate to the initial position, the first spring is in tension.

The automatic multicolor printing equipment has the advantages that the driving mechanism drives the conveying mechanism to operate to realize conveying of workpieces, and the driving mechanism drives the printing mechanism to operate to realize multicolor printing of the workpieces.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic diagram of the configuration of an automated multicolor printing apparatus of the present invention;

FIG. 2 is a schematic view of the connection of the rotary assembly to the printing assembly of the automated multicolor printing apparatus of the present invention;

FIG. 3 is an enlarged view of portion A of FIG. 2;

FIG. 4 is a schematic diagram of the air blowing assembly of the automated multicolor printing apparatus of the present invention;

FIG. 5 is a schematic view of the connection structure of the positioning rod and the moving rod of the automated multicolor printing apparatus of the present invention;

in the figure: 1. the automatic printing machine comprises a base, 2. a fixed rod, 3. a motor, 4. a driving shaft, 5. a first half gear, 6. a conveyor belt, 7. a first rotating gear, 8. a rotating shaft, 9. a roller, 10. a rotating rod, 11. a second rotating gear, 12. a partition plate, 13. a fixed pipe, 14. a push rod, 15. a printing plate, 16. a first spring, 17. a second half gear, 18. a rack, 19. a positioning rod, 20. a moving rod, 21. a second spring, 22. a sleeve, 23. a piston rod, 24. an air inlet pipe, 25. an air outlet pipe, 26. an air outlet pipe, 27. a baffle, 28. a sealing ball, 29. a sealing plate, 30. a fixed block, 31. a first magnet, 32. a second magnet, 33. a fixed ring, 34. a limiting rod, 35. a third spring, 36. a connecting pipe, 37. a pressing plate and 38.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.

As shown in fig. 1, an automatic multicolor printing apparatus includes a base 1, two fixing rods 2, a driving mechanism, a conveying mechanism and a printing mechanism, wherein the two fixing rods 2 are respectively arranged at two ends of the base 1, the driving mechanism is arranged on one of the fixing rods 2, the conveying mechanism is arranged between the two fixing rods 2, and the printing mechanism is arranged right above the conveying mechanism;

when the device is used, the driving mechanism drives the conveying mechanism to operate to realize the movement of the workpiece, and the driving mechanism drives the printing mechanism to operate to realize the printing of the workpiece.

As shown in fig. 1, the driving mechanism includes a motor 3, a driving shaft 4 and a first half gear 5, the motor 3 is horizontally disposed on the fixing rod 2, the driving shaft 4 is mounted on the motor 3, the driving shaft 4 passes through the fixing rod 2, the first half gear 5 is sleeved on one end of the driving shaft 4 far away from the motor 3, and the first half gear 5 is in key connection with the driving shaft 4;

the motor 3 is operated, the motor 3 drives the driving shaft 4 to rotate, and the driving shaft 4 drives the first half gear 5 to rotate.

As shown in fig. 1, the conveying mechanism includes a conveying belt 6, a first rotating gear 7 and a conveying assembly, the conveying assembly includes two conveying units, the two conveying units are respectively disposed on two sides of a base 1, the conveying unit includes a rotating shaft 8 and a roller 9, the rotating shaft 8 is disposed above the base 1, the roller 9 is sleeved on the rotating shaft 8, the roller 9 is in key connection with the rotating shaft 8, the two rollers 9 of the two conveying units are in transmission connection with each other through the conveying belt 6, the first rotating gear 7 is sleeved on the rotating shaft 8 of one of the conveying units, the first rotating gear 7 is in key connection with the rotating shaft 8, and the first rotating gear 7 is meshed with a first half gear 5;

when the first half gear 5 is meshed with the first rotating gear 7, the first half gear 5 drives the first rotating gear 7 to rotate, the first rotating gear 7 drives the rotating shaft 8 to rotate, the rotating shaft 8 drives the rollers 9 to rotate, the rollers 9 of the two conveying units tension the conveying belt 6, and the conveying belt 6 is driven to move under the action of friction force, so that the conveying of the workpiece is realized, and when the first half gear 5 is not meshed with the first rotating gear 7, the conveying belt 6 is kept in a fixed state, so that the workpiece is kept in a fixed state.

As shown in fig. 2-5, the printing mechanism includes a rotation assembly, a printing assembly and an air blowing assembly, the rotation assembly includes a rotation rod 10, a second rotation gear 11 and a partition plate 12, the rotation rod 10 is disposed between two fixing rods 2, the second rotation gear 11 is sleeved on the rotation rod 10, the second rotation gear 11 is connected with the rotation rod 10 in a key manner, the second rotation gear 11 is meshed with the first half gear 5, the partition plate 12 is disposed on the rotation rod 10, the partition plate 12 has four parts, an included angle formed by two adjacent partition plates 12 is 90 °, the printing assembly includes four printing units, an included angle formed by two adjacent printing units is 90 °, the printing units are disposed between two adjacent partition plates 12, the printing units include a fixing pipe 13, a push rod 14, a printing plate 15 and a first spring 16, the fixing pipe 13 is disposed on the rotation rod 10, one end of the push rod 14 is disposed in the fixing pipe 13, the other end of the push rod 14 extends out of the fixed pipe 13, the push rod 14 is connected with the fixed pipe 13 in a sliding manner, the printing plate 15 is arranged at one end of the push rod 14, which is positioned outside the fixed pipe 13, two ends of the printing plate 15 are respectively abutted against two adjacent partition plates 12, the first spring 16 is arranged in the fixed pipe 13, one end of the first spring 16 is connected with the fixed pipe 13, the other end of the first spring 16 is connected with the push rod 14, the air blowing assembly comprises a moving unit, an air blowing unit and a connecting unit, the moving unit comprises a second half gear 17, a rack 18, a positioning rod 19, a moving rod 20 and a second spring 21, the second half gear 17 is sleeved on the driving shaft 4, the second half gear 17 is in key connection with the driving shaft 4, the positioning rod 19 is arranged on the base 1, the moving rod 20 is sleeved on the positioning rod 19, and the moving rod 20 is connected with the positioning rod 19 in a sliding, the rack 18 is arranged on the moving rod 20, the rack 18 is meshed with the second half gear 17, the air blowing unit comprises a sleeve 22, a piston rod 23, an air inlet pipe 24, an air outlet pipe 25, an exhaust pipe 26 and an air outlet unit, the sleeve 22 is arranged on the fixed rod 2, one end of the piston rod 23 is positioned in the sleeve 22, the other end of the piston rod 23 extends out of the sleeve 22, a piston of the piston rod 23 is hermetically connected with the sleeve 22, one end of the piston rod 23, which is positioned outside the sleeve 22, is connected with the moving rod 20, the air inlet pipe 24 and the air outlet pipe 25 are both arranged at the top of the sleeve 22, the air inlet pipe 24 and the air outlet pipe 25 are both communicated with the inside of the sleeve 22, the rotating rod 10 is arranged in a hollow mode, the air outlet pipe 25 extends into the rotating rod 10, one end, which is positioned in the rotating rod 10, is coaxial with the rotating shaft 8, the exhaust pipe 26, the exhaust pipe 26 is communicated with the inside of the exhaust pipe 25, the air outlet unit comprises a baffle plate 27, a sealing ball 28, a sealing plate 29 and a fixing block 30, the baffle plate 27 is arranged at one end of the exhaust pipe 26 far away from the air outlet pipe 25, the baffle plate 27 is provided with a round hole, the baffle plate 27 is conical, the sealing ball 28 is positioned at the round hole of the baffle plate 27, the sealing ball 28 is connected with the baffle plate 27 in a sealing manner, the sealing plate 29 is arranged in the exhaust pipe 26, the two sealing plates 29 are respectively arranged at two sides of the exhaust pipe 26, one end of the sealing plate 29 is hinged with the inner wall of the exhaust pipe 26, a torsion spring is arranged at the hinged position of the sealing plate 29 and the exhaust pipe 26, one ends of the two sealing plates 29 far away from the exhaust pipe 26 are attached, the sealing plate 29 is abutted against the sealing ball 28, the fixing block 30 is, the sealing plate 29 is abutted against the fixing block 30, the connecting unit comprises a first magnet 31 and four sealing units, the first magnet 31 is sleeved on the exhaust pipe 26, the four sealing units are respectively arranged corresponding to the four fixing pipes 13, each sealing unit comprises a second magnet 32, a fixing ring 33, a limiting rod 34, a third spring 35, a connecting pipe 36 and a pressing plate 37, the connecting pipe 36 is arranged on the fixing pipe 13, the connecting pipe 36 is communicated with the inside of the fixing pipe 13, the pressing plate 37 is arranged in the connecting pipe 36, the pressing plate 37 close to the sealing ball 28 is abutted against the sealing ball 28, the pressing plate 37 is provided with a plurality of air inlets, the fixing ring 33 is sleeved on the connecting pipe 36, the fixing ring 33 is fixedly connected with the connecting pipe 36, the second magnet 32 is sleeved on the connecting pipe 36, and the second magnet 32 is slidably connected with the connecting pipe 36, one of them second magnet 32 is just to setting up with first magnet 31, second magnet 32 and first magnet 31 are mutually inhaled, gag lever post 34 sets up on second magnet 32, gag lever post 34 passes solid fixed ring 33, gag lever post 34 and solid fixed ring 33 sliding connection, third spring 35 cover is established on gag lever post 34, third spring 35 is located between second magnet 32 and the solid fixed ring 33, the one end and the solid fixed ring 33 of third spring 35 are connected, the other end and the second magnet 32 of third spring 35 are connected.

When the first half gear 5 is meshed with the second rotating gear 11, the first half gear 5 drives the second rotating gear 11 to rotate, the second rotating gear 11 drives the rotating rod 10 to rotate, the rotating rod 10 drives the fixed pipe 13 to rotate, the fixed pipe 13 drives the push rod 14 to rotate, the push rod 14 drives the printing plates 15 to rotate, wherein the first half gear 5 rotates for one circle, so that the second rotating gear 11 rotates for 90 degrees, so that the four printing plates 15 are sequentially opposite to the workpieces on the conveyor belt 6, the driving shaft 4 drives the second half gear 17 to rotate, when the second half gear 17 is meshed with the rack 18, the rack 17 drives the rack 18 to move, the rack 18 drives the moving rod 20 to move, the moving rod 20 drives the piston rod 23 to move, so that the sealed cavity space formed by the piston rod 23 and the sleeve 22 is reduced, so that the air in the sleeve 22 is pressed into the air outlet pipe 25, then enters the air outlet pipe 26, and the air pressure in the, thereby generating a thrust force on the sealing plate 29, the sealing plate 29 is blocked by the fixing block 30 and cannot rotate, so that the sealing plate 29 keeps a sealing state on the exhaust pipe 26 at the moment, when the connecting pipe 36 on the fixing pipe 13 is attached to the exhaust pipe 26, the pressing plate 37 on the connecting pipe 36 presses the sealing ball 28 on the exhaust pipe 26 down, so that the sealing ball 28 presses the sealing plate 29 reversely, so that the sealing plate 29 is opened, so that air in the exhaust pipe 26 enters the connecting pipe 36 through the air inlet hole on the pressing plate 37 and then enters the fixing pipe 13, the air pressure in the fixing pipe 13 is increased, so that the thrust force generated by the air pressure on the push rod 14 is increased, when the thrust force is greater than the restoring force of the first spring 16, the air pressure pushes the push rod 14 to move, the push rod 14 pushes the printing plate 15 to move downwards, so that the printing plate 15 moves downwards to print a workpiece below, the first magnet 31 and the second magnet 32 are opposite, under the action of the attractive force of the first magnet 31, the second magnet 32 moves towards the first magnet 31, so that the second magnet 32 seals the joint of the connecting pipe 36 and the exhaust pipe 26, thereby realizing better air intake effect, along with the rotation of the first half gear 5, the first half gear 5 drives the rotating rod 10 to continue rotating, the rotating rod 10 drives the fixed pipe 13 to rotate, the fixed pipe 13 drives the connecting pipe 36 to rotate, so that the connecting pipe 36 is moved away from the exhaust pipe 26, the rotating force is greater than the attractive force of the first magnet 31 and the second magnet 32, so that the connecting pipe 36 can rotate, when the second magnet 32 is far away from the first magnet 31, the attractive force between the second magnet 32 and the first magnet 31 is less than the restoring force of the third spring 35, at this time, the third spring 35 is stretched, under the restoring force of the third spring 35, the second magnet 32 is driven to move reversely, make second magnet 32 resume the initial position, the torsional spring of closing plate 29 and the articulated department of blast pipe 26 is in the deformation state simultaneously, the restoring force of torsional spring produces thrust to closing plate 29, when clamp plate 37 moves away sealing ball 28, sealing ball 28 is not blockked, under the restoring force effect of torsional spring, will drive closing plate 29 reverse rotation, thereby seal up blast pipe 26 once more, closing plate 29 promotes the sealer and blocks up the round hole simultaneously, realize better sealed effect, when next connecting pipe 36 moves to blast pipe 26 and locates, and the same is so, the air in blast pipe 26 gets into next fixed pipe 13 once more, release next printing plate 15, realize printing once more.

The four printing plates 15 are different in shape and are coated with different colors of ink, respectively, so that the four printing plates 15 are sequentially abutted against the workpiece, thereby completing multicolor printing.

When the second half gear 17 is not engaged with the rack 18, the second spring 21 is in a stretching state, the restoring force of the second spring 21 generates a pulling force on the moving rod 20, so that the moving rod 20 reversely moves to return to the initial position, so that the moving rod 20 drives the piston rod 23 to reversely move, so that the sealed cavity space is enlarged, so that the air pressure in the sleeve 22 is reduced, the air is pressed into the sleeve 22 through the air inlet pipe 24 by the external atmospheric pressure, so as to realize air supplement, the check valve on the air inlet pipe 24 only can admit air and cannot release air, the check valve on the air outlet pipe 25 only can release air and cannot release air, so that the air can enter the sleeve 22 through the air inlet pipe 24 and then is discharged through the air outlet pipe 25, the air continuously blows air into the exhaust pipe 26 through the continuous rotation of the second half gear 17, so that the exhaust pipe 26 is always kept in a high-pressure state, so that, once the connecting duct 36 abuts against the exhaust duct 26, air immediately enters the fixed duct 13, pressing the printing plate 15 out.

Here the travel bar 20 moves the travel block 38, and the block 38 is located in the dovetail slot so that the block 38 can only move along the axis of the dovetail slot, thereby limiting the movement of the block 38 and, therefore, better limiting the movement of the travel bar 20.

Here, when the first half gear 5 is engaged with the first rotary gear 7, the first half gear 5 is not engaged with the second rotary gear 11, so that the printing plate 15 cannot move for printing while the workpiece is being conveyed, and when the first half gear 5 is not engaged with the first rotary gear 7, the first half gear 5 is engaged with the second rotary gear 11, so that the workpiece is kept in a fixed state while the printing plate 15 moves downward for printing.

In order to realize automatic control, the base 1 is provided with a PLC, and the motor 3 is electrically connected with the PLC.

In order to better limit the movement of the second magnet 32, the number of the limiting rods 34 is two, the two limiting rods 34 are respectively arranged at two ends of the second magnet 32, the number of the third springs 35 is two, and the two third springs 35 are respectively sleeved on the two limiting rods 34.

In order to support the rotating shaft 8, a bearing seat is arranged on the fixing rod 2, and the end part of the rotating shaft 8 is positioned in the bearing seat.

In order to better limit the movement of the moving rod 20, a sliding block 38 is arranged in the moving rod 20, a sliding groove is arranged on the positioning rod 19, the sliding block 38 is positioned in the sliding groove, and the sliding block 38 is slidably connected with the sliding groove.

In order to better limit the movement of the moving rod 20, there are two sliding blocks 38, two sliding blocks 38 are respectively disposed on two sides of the moving rod 20, there are two sliding grooves, and two sliding blocks 38 are respectively located in the two sliding grooves.

In order to better limit the movement of the moving rod 20, the cross section of the sliding block 38 is dovetail-shaped, and the sliding groove is a dovetail groove.

In order to make air only enter the sleeve 22 through the air inlet pipe 24, a one-way valve is arranged at the joint of the air inlet pipe 24 and the sleeve 22.

In order to make the air only be discharged through the outlet pipe 25, a check valve is provided at the connection of the outlet pipe 25 and the sleeve 22.

In order to better return the printing plate 15 to the initial position, the first spring 16 is in tension.

When the device is used, the driving component is operated to enable the first half gear 5 to rotate, when the first half gear 5 is meshed with the first rotating gear 7, the first half gear 5 drives the first rotating gear 7 to rotate, so that the conveying unit is driven to rotate, the conveying belt 6 moves, so that the workpiece rotates, when the first half gear 5 is meshed with the second rotating gear 11, the first half gear 5 drives the second rotating gear 11 to rotate, the second rotating gear 11 drives the rotating rod 10 to rotate, so that each printing unit rotates, so that each printing plate 15 is sequentially opposite to the workpiece, air is continuously blown into the exhaust pipe 26 through the air blowing component, when the connecting pipe 36 is opposite to the exhaust pipe 26, the sealing ball 28 is pressed down through the pressing plate 37, the sealing ball 28 opens the sealing plate 29, so that the air in the exhaust pipe 26 enters the fixed pipe 13 through the air inlet hole, and the air pressure in the fixed pipe 13 is increased, thereby promote printing plate 15 downstream to the work piece to the below prints, along with four printing plate 15's downstream in proper order, thereby realizes polychrome printing, has avoided manual operation, has saved the manpower, has improved work efficiency, seals the junction of connecting pipe 36 and blast pipe 26 through sealed unit, thereby realizes better effect of admitting air.

Compared with the prior art, this automatic polychrome lithography apparatus, through the operation of actuating mechanism drive transport mechanism, realize the conveying of work piece, through the operation of actuating mechanism drive printing mechanism, realize the polychrome printing of work piece, compare with current lithography apparatus, the device is through an output, realize the conveying and the printing of work piece, the energy has been saved, simultaneously through the linkage of transport mechanism and printing mechanism, realize the online printing of work piece, and this linkage adopts pure mechanical structure, the stability and the life of device have been improved, compare with current air-blowing subassembly, the mechanism is through the linkage with actuating mechanism, online air-blowing has been realized, and seal up the junction of connecting pipe 36 and blast pipe 26 through sealed unit, realize better sealed effect, and the practicality is improved.

In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. The automatic multicolor printing equipment is characterized by comprising a base (1), two fixing rods (2), a driving mechanism, a conveying mechanism and a printing mechanism, wherein the two fixing rods (2) are respectively arranged at two ends of the base (1), the driving mechanism is arranged on one fixing rod (2), the conveying mechanism is arranged between the two fixing rods (2), and the printing mechanism is arranged right above the conveying mechanism;

the driving mechanism comprises a motor (3), a driving shaft (4) and a first half gear (5), the motor (3) is horizontally arranged on the fixing rod (2), the driving shaft (4) is arranged on the motor (3), the driving shaft (4) penetrates through the fixing rod (2), the first half gear (5) is sleeved at one end, far away from the motor (3), of the driving shaft (4), and the first half gear (5) is in key connection with the driving shaft (4);

the conveying mechanism comprises a conveying belt (6), a first rotating gear (7) and a conveying assembly, the conveying assembly comprises two conveying units, the two conveying units are arranged on two sides of the base (1) respectively, the conveying units comprise rotating shafts (8) and rollers (9), the rotating shafts (8) are arranged above the base (1), the rollers (9) are sleeved on the rotating shafts (8), the rollers (9) are connected with the rotating shafts (8) in a key mode, the two rollers (9) of the two conveying units are connected with each other through the conveying belt (6) in a transmission mode, the first rotating gear (7) is sleeved on the rotating shaft (8) of one conveying unit, the first rotating gear (7) is connected with the rotating shafts (8) in a key mode, and the first rotating gear (7) is meshed with the first half gear (5);

printing mechanism includes runner assembly, printing subassembly and bloated gas subassembly, the runner assembly includes bull stick (10), second commentaries on classics gear (11) and baffle (12), bull stick (10) sets up between two dead levers (2), second commentaries on classics gear (11) cover is established on bull stick (10), second commentaries on classics gear (11) and bull stick (10) key-type connection, second commentaries on classics gear (11) and first semi-gear (5) meshing, baffle (12) set up on bull stick (10), baffle (12) have four, and the contained angle that two adjacent baffles (12) formed is 90, the printing subassembly includes four printing units, and the contained angle that two adjacent printing units formed is 90, the printing unit is located between two adjacent baffles (12), the printing unit includes fixed pipe (13), push rod (14), The printing plate comprises a printing plate (15) and a first spring (16), the fixed pipe (13) is arranged on the rotating rod (10), one end of the push rod (14) is located in the fixed pipe (13), the other end of the push rod (14) extends out of the fixed pipe (13), the push rod (14) is connected with the fixed pipe (13) in a sliding mode, the printing plate (15) is arranged at one end, located outside the fixed pipe (13), of the push rod (14), two ends of the printing plate (15) are respectively abutted to two adjacent partition plates (12), the first spring (16) is arranged in the fixed pipe (13), one end of the first spring (16) is connected with the fixed pipe (13), the other end of the first spring (16) is connected with the push rod (14), the air blowing assembly comprises a moving unit, an air blowing unit and a connecting unit, and the moving unit comprises a second half gear (17), a rack (18), a positioning rod (19), A moving rod (20) and a second spring (21), wherein the second half gear (17) is sleeved on the driving shaft (4), the second half gear (17) is connected with the driving shaft (4) in a key mode, the positioning rod (19) is arranged on the base (1), the moving rod (20) is sleeved on the positioning rod (19), the moving rod (20) is connected with the positioning rod (19) in a sliding mode, the rack (18) is arranged on the moving rod (20), the rack (18) is meshed with the second half gear (17), the air blowing unit comprises a sleeve (22), a piston rod (23), an air inlet pipe (24), an air outlet pipe (25), an air outlet pipe (26) and an air outlet unit, the sleeve (22) is arranged on the fixing rod (2), one end of the piston rod (23) is located in the sleeve (22), and the other end of the piston rod (23) extends out of the sleeve (22), the piston of the piston rod (23) is connected with the sleeve (22) in a sealing manner, one end of the piston rod (23) located outside the sleeve (22) is connected with the moving rod (20), the air inlet pipe (24) and the air outlet pipe (25) are arranged at the top of the sleeve (22), the air inlet pipe (24) and the air outlet pipe (25) are communicated with the interior of the sleeve (22), the rotating rod (10) is arranged in a hollow manner, the air outlet pipe (25) extends into the rotating rod (10), one end of the air outlet pipe (25) located in the rotating rod (10) is coaxially arranged with the rotating shaft (8), the exhaust pipe (26) is arranged at one end of the air outlet pipe (25) located in the rotating rod (10), the exhaust pipe (26) is communicated with the interior of the air outlet pipe (25), the air outlet unit comprises a baffle plate (27), a sealing ball (28), a sealing plate (29) and a fixing block (30), the baffle plate (27) is arranged at one end of the exhaust pipe (, the exhaust pipe sealing structure is characterized in that a round hole is formed in the baffle plate (27), the baffle plate (27) is conical, the sealing ball (28) is located in the round hole of the baffle plate (27), the sealing ball (28) is connected with the baffle plate (27) in a sealing mode, the sealing plate (29) is arranged in the exhaust pipe (26), two sealing plates (29) are arranged on two sides of the exhaust pipe (26) respectively, one end of each sealing plate (29) is hinged to the inner wall of the exhaust pipe (26), a torsion spring is arranged at the hinged position of each sealing plate (29) and the exhaust pipe (26), one end, far away from the exhaust pipe (26), of each sealing plate (29) is attached to the sealing ball (28), the sealing plate (29) is abutted to the sealing ball (28), the fixing block (30) is arranged on the inner wall of the exhaust pipe (26), the fixing block (30) is located on one side, close to the sealing ball (28), of each sealing plate (29, the connecting unit comprises a first magnet (31) and a sealing unit, the first magnet (31) is sleeved on the exhaust pipe (26), the sealing unit is four, the four sealing units are respectively arranged corresponding to the four fixed pipes (13), the sealing unit comprises a second magnet (32), a fixed ring (33), a limiting rod (34), a third spring (35), a connecting pipe (36) and a pressing plate (37), the connecting pipe (36) is arranged on the fixed pipe (13), the connecting pipe (36) is communicated with the fixed pipe (13) in the inner part, the pressing plate (37) is arranged in the connecting pipe (36), the pressing plate (37) close to the sealing ball (28) is abutted against the sealing ball (28), a plurality of air inlets are arranged on the pressing plate (37), the fixed ring (33) is sleeved on the connecting pipe (36), the fixed ring (33) is fixedly connected with the connecting pipe (36), second magnet (32) cover is established on connecting pipe (36), second magnet (32) and connecting pipe (36) sliding connection, one of them second magnet (32) just to setting up with first magnet (31), second magnet (32) and first magnet (31) are mutually inhaled, gag lever post (34) set up on second magnet (32), gag lever post (34) pass solid fixed ring (33), gag lever post (34) and solid fixed ring (33) sliding connection, third spring (35) cover is established on gag lever post (34), third spring (35) are located between second magnet (32) and solid fixed ring (33), the one end and the solid fixed ring (33) of third spring (35) are connected, the other end and the second magnet (32) of third spring (35) are connected.

2. The automated multicolor printing apparatus according to claim 1, wherein the base (1) is provided with a PLC, and the motor (3) is electrically connected to the PLC.

3. The automated multicolor printing apparatus according to claim 1, wherein there are two of the position-limiting rods (34), two of the position-limiting rods (34) are respectively disposed at both ends of the second magnet (32), two of the third springs (35) are provided, and the two third springs (35) are respectively fitted over the two position-limiting rods (34).

4. The automated multicolor printing apparatus according to claim 1, wherein a bearing seat is provided on the fixing lever (2), and an end of the rotary shaft (8) is located in the bearing seat.

5. The automated multicolor printing apparatus according to claim 1, wherein a slide block (38) is provided in the moving rod (20), a slide groove is provided on the positioning rod (19), the slide block (38) is located in the slide groove, and the slide block (38) is slidably connected to the slide groove.

6. The automated multicolor printing apparatus according to claim 5, wherein there are two of said sliders (38), two of said sliders (38) being respectively disposed on both sides of the moving rod (20), and two of said slide grooves, two of said sliders (38) being respectively disposed in two of said slide grooves.

7. The automated multicolor printing apparatus according to claim 1, wherein the slider (38) has a dovetail-shaped cross section, and the slide groove is a dovetail groove.

8. An automated multicolor printing apparatus according to claim 1, wherein a one-way valve is provided at the junction of said air inlet pipe (24) and said sleeve (22).

9. An automated multicolor printing apparatus according to claim 1, wherein a one-way valve is provided at the junction of said outlet pipe (25) and said sleeve (22).

10. The automated multicolor printing apparatus according to claim 1, wherein the first spring (16) is in tension.