1. An automatic environment-friendly flexible printing production line comprises a folding device for folding and forming a carton and a printing device for printing the carton; the method is characterized in that: the printing device is positioned downstream of the folding device; the printing device comprises a printing assembly for printing the carton and a mounting rack for bearing the printing assembly; the printing assembly comprises a printing mechanism and a first driving mechanism for driving the printing mechanism to print around the outer side wall of the carton; the printing mechanism comprises a printing part and a connecting piece for connecting the printing part and the first driving mechanism; the first driving mechanism comprises a first driving plate and a second driving plate; the first driving plate is horizontally and slidably mounted on the mounting frame, and the second driving plate is horizontally and slidably mounted on the first driving plate; the first driving plate and the second driving plate move vertically to each other in the horizontal direction; a first guide rail for the first drive plate to slide is arranged on the mounting frame, a first sliding groove matched with the first guide rail is formed in the upper surface of the first drive plate, a second guide rail for the second drive plate is formed in the lower surface of the first drive plate, and a second sliding groove matched with the second guide rail is formed in the upper surface of the second drive plate; one end of the connecting piece is connected below the second driving board and is vertically arranged, and the printing portion is connected to the other end of the connecting piece.

2. An automated environmentally friendly flexible printing line as recited in claim 1, further comprising: the printing part comprises a printing part and a supporting part which are arranged at the lower part of the connecting part; the printing part and the supporting part can slide relatively in the horizontal direction; the printing part comprises a printing connecting part and a printing module, the printing module is arranged below the printing connecting part and is rotationally connected with the printing connecting part, and the printing connecting part is slidably arranged on the connecting part; the support piece comprises a support connecting part and a support module, the support module is located below the support connecting part and is rotatably connected with the support connecting part, and the support connecting part is slidably mounted on the connecting piece.

3. An automated environmentally friendly flexible printing line as recited in claim 2, further comprising: the connecting piece comprises a connecting rod and a mounting block which is positioned below the connecting rod and used for mounting the printing piece and the supporting piece; the mounting block is provided with a guide rail for the printing part and the supporting part to slide; the printing connecting part is provided with a first sliding groove matched with the guide rail, and the supporting connecting part is provided with a second sliding groove matched with the guide rail.

4. An automated environmentally friendly flexible printing line as recited in claim 3, further comprising: the printing part also comprises a driving part for driving the printing part and the supporting part to approach each other; the driving piece is provided with an accommodating through hole for the printing piece and the supporting piece to slide; the accommodating through hole is provided with an inner wall which is in a circular truncated cone shape; the printing connecting part is provided with a first driving surface matched with the inner wall at one side far away from the connecting rod, and the supporting connecting part is provided with a second driving surface matched with the inner wall at one side far away from the connecting rod; the first driving surface is gradually inclined towards the connecting rod from bottom to top, and the second driving surface is gradually inclined towards the connecting rod from bottom to top; the printing connecting part is close to one side of the connecting rod and is provided with a first groove matched with the connecting rod, and the supporting connecting part is close to one side of the connecting rod and is provided with a second groove matched with the connecting rod.

5. An automated environmentally friendly flexible printing line as recited in claim 4, wherein: the printing part also comprises a second driving mechanism for driving the driving piece to move in the vertical direction; the second driving mechanism comprises a first air cylinder, a second air cylinder and a connecting plate; the connecting plate is fixedly arranged on the connecting rod, the first air cylinder and the second air cylinder are fixedly arranged on the connecting plate, and piston rods of the first air cylinder and the second air cylinder penetrate through the connecting plate to be connected with the driving piece.

6. An automated environmentally friendly flexible printing line as recited in claim 4, wherein: the printing part also comprises a first return spring connected between the printing connecting part and the connecting rod, and a second return spring connected between the supporting connecting part and the connecting rod; the first groove is further provided with a first mounting hole for mounting the first return spring, and the second groove is further provided with a second mounting hole for mounting the second return spring.

7. An automated eco-friendly flexible printing line according to any one of claims 1-6, wherein: the connecting rod comprises a connecting section and a telescopic section, and the connecting section is positioned above the telescopic section; the connecting plate is fixedly arranged on the connecting section.

8. An automated environmentally friendly flexible printing line as recited in claim 7, further comprising: the printing assembly further comprises a third driving mechanism for driving the connecting rod to rotate; the third driving mechanism comprises a motor, a driving tooth and a driven tooth; the motor is fixedly installed below the second driving plate, the driving tooth is installed on an output shaft of the motor, the driven tooth is installed on the connecting section of the connecting rod, and the driving tooth is meshed with the driven tooth.

Background

The printing equipment is a equipment for transferring the ink of picture and text on the printing plate to paper, and its working principle is that firstly the characters and images to be printed are made into printing plate, then it is mounted on the printing machine, then the ink is coated on the place on which the characters and images are placed by hand or printing machine, then it is directly or indirectly transferred onto the paper or other printing material so as to copy the printed matter identical to printing plate. When some existing cartons are printed, the surface of the carton is printed firstly when the carton is in a planar state and is not formed yet, and then the carton is folded and formed, so that the working process can cause that the characters or images printed previously cannot be connected normally when the carton is folded subsequently.

Accordingly, the present inventors have made extensive studies to solve the above problems and have made the present invention.

Disclosure of Invention

The invention aims to provide an automatic environment-friendly flexible printing production line, which solves the problem that characters or patterns on a final carton cannot be normally connected due to a work flow that the carton is printed and then folded in the prior art.

In order to achieve the purpose, the invention adopts the following technical scheme:

an automatic environment-friendly flexible printing production line comprises a folding device for folding and forming a carton and a printing device for printing the carton; the printing device is positioned downstream of the folding device; the printing device comprises a printing assembly for printing the carton and a mounting rack for bearing the printing assembly; the printing assembly comprises a printing mechanism and a first driving mechanism for driving the printing mechanism to print around the outer side wall of the carton; the printing mechanism comprises a printing part and a connecting piece for connecting the printing part and the first driving mechanism; the first driving mechanism comprises a first driving plate and a second driving plate; the first driving plate is horizontally and slidably mounted on the mounting frame, and the second driving plate is horizontally and slidably mounted on the first driving plate; the first driving plate and the second driving plate move vertically to each other in the horizontal direction; a first guide rail for the first drive plate to slide is arranged on the mounting frame, a first sliding groove matched with the first guide rail is formed in the upper surface of the first drive plate, a second guide rail for the second drive plate is formed in the lower surface of the first drive plate, and a second sliding groove matched with the second guide rail is formed in the upper surface of the second drive plate; one end of the connecting piece is connected below the second driving board and is vertically arranged, and the printing portion is connected to the other end of the connecting piece.

Further, the printing part comprises a printing member and a supporting member mounted on the lower portion of the connecting member; the printing part and the supporting part can slide relatively in the horizontal direction; the printing part comprises a printing connecting part and a printing module, the printing module is arranged below the printing connecting part and is rotationally connected with the printing connecting part, and the printing connecting part is slidably arranged on the connecting part; the support piece comprises a support connecting part and a support module, the support module is located below the support connecting part and is rotatably connected with the support connecting part, and the support connecting part is slidably mounted on the connecting piece.

Further, the connecting piece comprises a connecting rod and a mounting block which is positioned below the connecting rod and used for mounting the printing piece and the supporting piece; the mounting block is provided with a guide rail for the printing part and the supporting part to slide; the printing connecting part is provided with a first sliding groove matched with the guide rail, and the supporting connecting part is provided with a second sliding groove matched with the guide rail.

Further, the printing part also comprises a driving part for driving the printing part and the supporting part to approach each other; the driving piece is provided with an accommodating through hole for the printing piece and the supporting piece to slide; the accommodating through hole is provided with an inner wall which is in a circular truncated cone shape; the printing connecting part is provided with a first driving surface matched with the inner wall at one side far away from the connecting rod, and the supporting connecting part is provided with a second driving surface matched with the inner wall at one side far away from the connecting rod; the first driving surface is gradually inclined towards the connecting rod from bottom to top, and the second driving surface is gradually inclined towards the connecting rod from bottom to top; the printing connecting part is close to one side of the connecting rod and is provided with a first groove matched with the connecting rod, and the supporting connecting part is close to one side of the connecting rod and is provided with a second groove matched with the connecting rod.

Further, the printing part also comprises a second driving mechanism for driving the driving piece to move in the vertical direction; the second driving mechanism comprises a first air cylinder, a second air cylinder and a connecting plate; the connecting plate is fixedly arranged on the connecting rod, the first air cylinder and the second air cylinder are fixedly arranged on the connecting plate, and piston rods of the first air cylinder and the second air cylinder penetrate through the connecting plate to be connected with the driving piece.

Further, the printing portion further comprises a first return spring connected between the printing connecting portion and the connecting rod, and a second return spring connected between the supporting connecting portion and the connecting rod; the first groove is further provided with a first mounting hole for mounting the first return spring, and the second groove is further provided with a second mounting hole for mounting the second return spring.

Further, the connecting rod comprises a connecting section and a telescopic section, and the connecting section is positioned above the telescopic section; the connecting plate is fixedly arranged on the connecting section.

Further, the printing assembly also comprises a third driving mechanism for driving the connecting rod to rotate; the third driving mechanism comprises a motor, a driving tooth and a driven tooth; the motor is fixedly installed below the second driving plate, the driving tooth is installed on an output shaft of the motor, the driven tooth is installed on the connecting section of the connecting rod, and the driving tooth is meshed with the driven tooth.

After the technical scheme is adopted, compared with the prior art, the automatic environment-friendly flexible printing production line provided by the invention at least has the following beneficial effects:

firstly, the paper box is folded and formed, and then the paper box is printed, so that printed patterns can be prevented from being completely presented on the surface of the paper box.

And secondly, the printing assembly drives the printing mechanism to print around the folded carton through the first driving mechanism, and the driving part moves downwards through the second driving mechanism to force the printing part and the supporting part to be close to each other so that the printing part prints on the carton.

Thirdly, set up a support piece and cooperate with printing in the printing portion, support piece removes along with printing in real time when printing to guarantee that printing is when printing the carton, support piece provides a supporting role for the carton, prevents that printing from pressing the carton to warp, and the pattern that leads to the printing is unclear.

Drawings

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

FIG. 2 is a schematic view of a printing apparatus according to the present invention;

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

FIG. 4 is a schematic cross-sectional view of the driving member of the present invention;

FIG. 5 is a schematic view of the structure of the connector of the present invention;

FIG. 6 is a schematic view of the structure of a printing member according to the present invention;

fig. 7 is a schematic structural view of the supporting member of the present invention.

In the figure: 1-folding device, 2-printing device, 21-printing group, 22-mounting frame, 221-first guide, 211-printing mechanism, 212-first drive mechanism, 2121-first drive plate, 2122-first runner, 2123-second guide, 2124-second runner, 2125-second drive plate, 3-printing portion, 31-printing member, 311-printing connection portion, 3111-first recess, 3112-first drive surface, 312-printing module, 32-support member, 321-support connection portion, 3211-second recess, 3212-second drive surface, 322-support module, 33-first return spring, 34-second return spring, 4-connection member, 41-connection member, 411-connection segment, 412-telescopic section, 42-mounting block, 421-guide rail, 5-driving piece, 51-accommodating through hole, 6-second driving mechanism, 61-first cylinder, 62-second cylinder, 63-connecting plate, 7-third driving mechanism, 71-motor, 72-driving tooth and 73-driven tooth.

Detailed Description

In order to further explain the technical solution of the present invention, the following detailed description is given by way of specific examples.

As shown in fig. 1-7, an automatic environment-friendly flexible printing production line comprises a folding device 1 for folding and forming cartons and a printing device 2 for printing the cartons; the printing device 2 is located downstream of the folding device 1; the printing device 2 comprises a printing assembly 21 for printing the cartons and a mounting frame 22 for carrying the printing assembly 21; the printing assembly 21 comprises a printing mechanism 211 and a first driving mechanism 212 for driving the printing mechanism 211 to print around the outer side wall of the carton; the printing mechanism 211 includes a printing portion 3 and a link 4 connecting the printing portion 3 and the first driving mechanism 212; the first drive mechanism 212 includes a first drive plate 2121, and a second drive plate 2125; a first drive plate 2121 is horizontally slidably mounted on the mounting bracket 22, and a second drive plate 2125 is horizontally slidably mounted on the first drive plate 2121; the first driving plate 2121 and the second driving plate 2125 move vertically to each other in the horizontal direction; a first guide rail 421221 for the first driving plate 2121 to slide is disposed on the mounting frame 22, a first slide slot 2122 for the second driving plate 2125 to slide along the first guide rail 421221 is formed on the upper surface of the first driving plate 2121, a second guide rail 4212123 for the second driving plate 2125 is formed on the lower surface of the first driving plate 2121, and a second slide slot 2124 for the second guide rail 4212123 to slide along the upper surface of the second driving plate 2125; one end of the link 4 is connected below the second driving plate 2125 and is vertically disposed, and the printing part 3 is connected at the other end of the link 4. After the carton is folded and formed by the folding device 1 and is transmitted to the printing device 2, at first, the telescopic section 412 of the connecting rod 41 extends downwards to enable the side wall of the carton to be arranged between the printing part 31 and the supporting part 32, then the driving part 5 moves downwards through the second driving mechanism 6, so that the printing part 31 and the supporting part 32 are forced to be close to each other and contact with the side wall of the carton, then, the printing mechanism 211 prints around the side wall of the carton through the first driving mechanism 212, and when the connecting rod 41 is driven to rotate through the third driving mechanism 7 at a corner, the printing part 31 and the supporting part 32 also rotate along with the connecting rod.

Preferably, the printing portion 3 comprises a printing member 31 and a supporting member 32 mounted on the lower portion of the connecting member 4; the printing member 31 and the support member 32 are relatively slidable in the horizontal direction; the printing member 31 comprises a printing connecting part 311 and a printing module 312, the printing module 312 is arranged below the printing connecting part 311 and is rotatably connected with the printing connecting part 311, and the printing connecting part 311 is slidably mounted on the connecting part 4; the supporting member 32 includes a supporting connection portion 321 and a supporting module 322, the supporting module 322 is located below the supporting connection portion 321 and is rotatably connected to the supporting connection portion 321, and the supporting connection portion 321 is slidably mounted on the connecting member 4. When printing the carton, printing member 31 is located the carton outer wall, and support 32 is located the carton inner wall, and printing member 31 and support 32 synchronous motion, in addition, printing module 312 is cylindrical with support module 322, when printing, through rolling form, and is more laborsaving.

Preferably, the connecting member 4 includes a connecting rod 41 and a mounting block 42 located below the connecting rod 41 for mounting the printing member 31 and the support member 32; the mounting block 42 is provided with a guide rail 421 for the printing member 31 and the support member 32 to slide; the printing connection portion 311 is formed with a first slide groove 2122 engaged with the guide rail 421, and the support connection portion 321 is formed with a second slide groove 2124 engaged with the guide rail 421. Before and after the carton is printed, the printing part 31 and the support part 32 are required to be separated by a certain distance so as to be convenient for the printing part 31 and the support part 32 to clamp the carton or the printing part 31 and the support part 32 to be withdrawn from the range of the carton.

Preferably, the printing portion 3 further comprises a drive 5 for driving the printing member 31 and the support 32 towards each other; the driving member 5 is provided with an accommodating through hole 51 for the printing member 31 and the supporting member 32 to slide; the accommodating through hole 51 has an inner wall in a truncated cone shape; the printing connection part 311 is provided with a first driving surface 3112 matched with the inner wall at one side far away from the connecting rod 41, and the supporting connection part 321 is provided with a second driving surface 3212 matched with the inner wall at one side far away from the connecting rod 41; the first driving surface 3112 is gradually inclined from bottom to top towards the connecting rod 41, and the second driving surface 3212 is gradually inclined from bottom to top towards the connecting rod 41; the printing connection part 311 has a first groove 3111 matched with the connection bar 41 at a side close to the connection bar 41, and the support connection part 321 has a second groove 3211 matched with the connection bar 41 at a side close to the connection bar 41.

Preferably, the printing portion 3 further comprises a second driving mechanism 6 for driving the driving member 5 to move in the vertical direction; the second driving mechanism 6 includes a first cylinder 61, a second cylinder 62, and a connecting plate 63; the connecting plate 63 is fixedly mounted on the connecting rod 41, the first cylinder 61 and the second cylinder 62 are fixedly mounted on the connecting plate 63, and piston rods of the first cylinder 61 and the second cylinder 62 penetrate through the connecting plate 63 to be connected with the driving member 5. The driving member 5 is moved downward by the second driving mechanism 6, so that the printing member 31 and the supporting member 32 are moved close to each other by the receiving through hole 51.

Preferably, the printing portion 3 further includes a first return spring 33 connected between the printing connection portion 311 and the connection bar 41, and a second return spring 34 connected between the support connection portion 321 and the connection bar 41; a first mounting hole for mounting the first return spring 33 is further formed in the first groove 3111, and a second mounting hole for mounting the second return spring 34 is further formed in the second groove 3211. When the driving member 5 is away from the printing member 31 and the support member 32 in the vertical direction, the printing member 31 and the support member 32 are horizontally away from each other by the first return spring 33 and the second return spring 34.

Preferably, the connecting rod 41 comprises a connecting section 411 and a telescopic section 412, and the connecting section 411 is located above the telescopic section 412; the connection plate 63 is fixedly mounted on the connection section 411.

Preferably, the printing group 21 further comprises a third driving mechanism 7 for driving the connecting rod 41 to rotate; the third driving mechanism 7 includes a motor 71, a driving tooth 72, and a driven tooth 73; the motor 71 is fixedly installed below the second driving plate 2125, the driving teeth 72 are installed on an output shaft of the motor 71, the driven teeth 73 are installed on the connecting section 411 of the connecting rod 41, and the driving teeth 72 are engaged with the driven teeth 73. The link section 411 is rotatably mounted on the second driving plate 2125, and when the printing mechanism 211 needs to be turned, the link lever 41 can be rotated by the third driving mechanism 7, so that the moving direction of the printing mechanism 211 is changed.

The product form of the present invention is not limited to the embodiments and examples shown in the present application, and any suitable changes or modifications of the similar ideas should be made without departing from the patent scope of the present invention.