CN111070863A

CN111070863A - Printing machine rack

Info

Publication number: CN111070863A
Application number: CN201911355406.0A
Authority: CN
Inventors: 周士勇
Original assignee: Zhejiang Cainuo Digital Technology Co ltd
Current assignee: Zhejiang Cainuo Digital Technology Co ltd
Priority date: 2019-12-25
Filing date: 2019-12-25
Publication date: 2020-04-28

Abstract

The invention discloses a printing machine rack which comprises a workbench, two transmission shafts, at least two lifting shafts, two conveying belts and a bearing plate, wherein the two transmission shafts are positioned at the front end and the rear end of the workbench, transmission wheels are arranged at the two ends of the transmission shafts and are sleeved with the conveying belts, the lifting shafts are positioned between the two transmission shafts, the two ends of the lifting shafts are provided with the transmission wheels and are used for transmitting the conveying belts positioned above, the two conveying belts are used for conveying the bearing plate, and the lifting shafts can lift in the vertical direction and lift the conveying belts positioned above. The invention has the beneficial effects that the bearing plate can be efficiently conveyed and accurately positioned.

Description

Printing machine rack

Technical Field

The invention relates to a printing machine rack which is mainly applied to the technical field of printing equipment.

Background

At present, screen printing is widely applied to various printed matters, and the screen printing comprises five major elements, namely a printing plate, a scraper, paint and a printing table. The printing plate prints by the basic principle that the hollow pattern can penetrate through the coating and the non-image-text part cannot penetrate through the coating. When in printing, paint is poured into one end of the screen printing plate, a scraper plate is used for applying certain pressure to the ink part on the screen printing plate, meanwhile, the paint moves towards the other end of the screen printing plate at a constant speed, and the paint is extruded onto a printed matter from meshes of the image-text part by the scraper plate in the moving process. At present, the printing frame and the printing plate of this type of printing machine set up as an organic whole, press printing frame and printing plate to carry out the printing behind the printed matter through setting up the swing arm, if the printed matter is the non-plane, inhomogeneous condition appears easily to the effort of printed matter in the printing plate to thereby lead to the local overstock of printed matter to warp and lead to the problem that the printed pattern appears out of shape, also do not have better fixed position to the loading board that bears the printed matter simultaneously, the problem that the dislocation skew takes place for the loading board position appears easily.

Disclosure of Invention

The invention aims to provide a printing machine rack which can be used for carrying out efficient conveying and accurate positioning on a bearing plate.

The invention is realized by the following technical scheme.

A printing machine rack comprises a workbench, two transmission shafts, at least two lifting shafts, two conveying belts and a bearing plate, wherein the two transmission shafts are located at the front end and the rear end of the workbench, transmission wheels are arranged at the two ends of the transmission shafts, the conveying belts are sleeved with the transmission wheels, the lifting shafts are located between the two transmission shafts, the transmission wheels are arranged at the two ends of the lifting shafts, the conveying belts are located above the lifting shafts in a transmission mode, the two conveying belts are used for conveying the bearing plate, and the lifting shafts can lift up and down along the vertical direction and lift up the conveying belts located above the lifting shafts.

Furthermore, a lifting frame is arranged below the lifting shaft, two ends of the lifting frame are provided with bearings and are used for connecting two ends of the lifting shaft, at least two lifting cylinders are arranged and fixed on the workbench, and piston rods of the lifting cylinders are vertically connected to the lifting frame.

Further, the workstation is fixed to be provided with two vertical and hollow tube bases, with sitting interior edge the tube base axial is provided with the slidable connecting cylinder, the top fixed connection of connecting cylinder is in the bottom of lifting frame, two the tube base is about the lifting frame symmetry sets up.

Furthermore, fixed plates are fixedly arranged on two sides of the front end and the rear end of the workbench, and two ends of the transmission shafts are vertically connected and installed on the fixed plates respectively.

Further, a connecting plate is fixedly connected between the two fixing plates on one side, and the connecting plate is provided with an elongated slot for accommodating the conveying belt positioned above.

Furthermore, a mounting bar is arranged in the elongated slot of the connecting plate and used for bearing a conveying belt positioned above the mounting bar, two ends of the mounting bar are respectively and fixedly connected to the two lifting frames, and the mounting bar and the conveying belt leave the elongated slot when the lifting shaft is lifted.

Furthermore, at least one positioning lifting cylinder is fixed to the front portion of the workbench, a piston rod of the positioning lifting cylinder is vertically arranged, a horizontally arranged positioning plate is fixed to the top end of the piston rod, and the positioning plate is used for abutting against the rear edge of the bearing plate after being lifted.

Furthermore, the front part of the workbench is provided with at least two positioning mechanisms, each positioning mechanism comprises a positioning seat, a positioning frame, a positioning column and a positioning translation cylinder, the positioning seat is fixed on the workbench, the top surface of the positioning seat is provided with a slide rail and the positioning frame is slidably mounted, the positioning translation cylinder is fixed on the positioning frame, a piston rod of the positioning cylinder is horizontally connected to the side part of the positioning frame, the positioning column is vertically arranged and fixed at the top part of the positioning frame, and the positioning column is used for abutting against the front edge of the bearing plate after being transversely moved.

Furthermore, the end face of the connecting plate facing the outside of the workbench is provided with at least one notch, the positioning mechanism is arranged at the notch, and a positioning column of the positioning mechanism can transversely move from the outside of the connecting plate to the notch and is used for abutting against the side edge of the bearing plate.

The invention has the beneficial effects that:

through setting up the lift axle, lift the loading board and carry, realized the high-efficient transportation of loading board to accomplish the location to the loading board is accurate through four directions, and the locate mode promotes the loading board through three direction and goes on, can avoid the deviation of loading board position and the incline of direction.

Drawings

FIG. 1 is a schematic view of the overall construction of a printing press;

FIG. 2 is a schematic view of a printer gantry;

FIG. 3 is an enlarged partial schematic view of a printer gantry;

FIG. 4 is a side view of the lift shaft and lift bracket;

FIG. 5 is a schematic view of a positioning plate and its related components;

FIG. 6 is a schematic structural view of the positioning mechanism;

FIG. 7 is a schematic view of a printing apparatus;

FIG. 8 is a schematic structural view of the lifting mechanism;

FIG. 9 is a schematic top view of a print frame;

fig. 10 is a schematic structural view of the pressing frame.

Detailed Description

The invention is explained in more detail below with reference to the figures and examples.

Referring to fig. 1-10, a printing press includes a press bed and a printing unit.

The printing machine rack comprises a workbench 10, two transmission shafts 11, two lifting shafts 12, two conveying belts 13, a bearing plate 16 and two transition shafts 14, wherein fixing plates 15 are fixedly arranged on two sides of the front end and the rear end of the workbench 10, the two fixing plates 15 are used as mounting parts of the transmission shafts 11 and the transition shafts 14, two ports of the two transmission shafts 11 are respectively and vertically connected and mounted at the positions, close to the front edge and the rear edge of the workbench 10, of the fixing plates 15, horizontal sliding grooves 151 are arranged at the mounting positions of the transmission shafts 11 on the fixing plates 15, two ports of the transmission shafts 11 are slidably arranged in the sliding grooves 151, the two transmission shafts 11 are positioned at the front end and the rear end of the workbench 10, two ends of the transmission shafts 11 are provided with transmission wheels 111 and are respectively sleeved on the conveying belts 13, two ports of the two transition shafts 14 are respectively and vertically connected and mounted on the fixing plates 15, the fixing plate 15 is provided with bearings 142 at the connecting and mounting positions for mounting two ports of the transition shaft 14, two ends of the transition shaft 14 are provided with transmission wheels 141 for transmitting the conveying belts 13 located below, the lifting shaft 12 is located between the two transmission shafts 11, two ends of the lifting shaft 12 are provided with transmission wheels 121 for transmitting the conveying belts 13 located above, the two conveying belts 13 are used for transmitting the bearing plate 16, the printed matter is placed on the surface of the bearing plate 16, the screen printing plate is placed on the surface of the printed matter, the lifting shaft 12 can be lifted in the vertical direction and lift the conveying belts 13 located above, and one of the transmission shafts 11 is driven by a driving motor. After the previous process is completed, the bearing plate 16 bearing the printed matter needs to be conveyed to a printing position, the two lifting shafts 12 are lifted firstly, then the driving motor drives the transmission shafts 11, the two lifting shafts 12 reset after the bearing plate 16 is moved to the printing position by the conveying belt 13, and when the lifting shafts 12 are lifted, the two transmission shafts 11 can slide in the sliding groove 151 according to the lifting height of the sliding positions, so that the excessive tension and the excessive tensioning of the conveying belt 13 are avoided, and the problem of stretching deformation after long-term use is also avoided.

Between the two fixing plates 15 on the same side of the worktable 10, a connecting plate 17 is connected, the connecting plate 17 has a long groove 170 with an upward opening and arranged along the length direction of the connecting plate 17, and when the lifting shaft 12 does not lift the conveyor belt 13, the conveyor belt 13 is positioned in the long groove 170. For the lifting shaft 12, a lifting frame 122 and two lifting cylinders 123 are provided as related structures for lifting, the lifting frame 122 is a plate-shaped structure perpendicular to the fixing plate 15 and located below the lifting shaft 12, bearings 124 are installed at two ends of the lifting frame, two ports of the lifting shaft 12 are respectively installed on the two bearings 124 of the lifting frame 122, the two lifting cylinders 123 are fixedly installed on the worktable 10, piston rods of the two lifting cylinders 123 are vertically arranged, and top ends of the two lifting cylinders 123 are fixedly connected to the bottom of the lifting frame 122, it is obvious that in order to ensure stable and stable driving of the lifting shaft 12, the two lifting cylinders 123 are symmetrically arranged on the lifting frame 122, and in order to further enhance the lifting stability of the lifting frame 122 and the lifting shaft 12, two hollow cylinder seats 125 are fixedly provided on the worktable 10, the barrel holder 125 is vertically arranged, and a connecting barrel 126 capable of sliding axially along the barrel holder 125 is provided, the top of the connecting barrel 126 is fixedly connected to the bottom of the lifting frame 122, and the two barrel holders 125 are located on two sides of the two lifting cylinders 123 and are also symmetrically arranged with respect to the lifting frame 122.

The long groove 170 of the connecting plate 17 is provided with a mounting bar 171, the mounting bar 171 is used for bearing the conveyor belt 13 located above, so that the top surface of the mounting bar 171 has an arc-shaped groove along the length direction thereof, the conveyor belt 13 is arranged in the arc-shaped groove, two ends of the mounting bar 171 are respectively and fixedly connected to the two lifting frames 122, when the lifting shaft 12 is lifted, the mounting bar 171 and the conveyor belt 13 leave the long groove 170, and the lifted conveyor belt 13 is stabilized by the mounting bar 171, so that the conveying state of the bearing plate 16 is stabilized without shaking.

The carrier 16 needs to be fixed at the printing position, and the front edge and the rear edge of the carrier are positioned and locked at the position, so that the carrier 16 and the printed matter are in a stable state in the printing state. A positioning lifting cylinder 21 is fixed at the front part of the workbench 10, a piston rod of the positioning lifting cylinder 21 is vertically arranged, a horizontally arranged connecting piece 22 is fixed at the top end, a horizontal positioning plate 23 is fixedly installed on the top surface of the connecting piece 22, the positioning plate 23 is lifted to abut against the rear edge of the bearing plate 16, guide pillars 24 are arranged at the left side and the right side of the positioning lifting cylinder 21 in order to improve the lifting state stability of the positioning plate 23, and the tops of the guide pillars 24 are fixedly connected to the connecting piece 22. The front part of the workbench 10 is provided with two positioning mechanisms which are bilaterally symmetrical. The positioning mechanism comprises a positioning seat 31, a positioning frame 32, a positioning column 33 and a positioning translation cylinder 34, wherein the positioning seat 31 is fixed on the workbench 10, the top surface of the positioning seat is provided with a slide rail 311 and the positioning frame 32 is slidably mounted, the positioning translation cylinder 34 is fixed on the positioning frame 32, a piston rod of the positioning translation cylinder is horizontally connected to the side part of the positioning frame 32, the positioning column 33 is vertically arranged and fixed on the top part of the positioning frame 32, and the positioning column 33 is used for abutting against the front edge of the bearing plate 16 after being transversely moved. After the bearing plate 16 moves to the printing position, the positioning lifting cylinder 21 drives the positioning plate 23 to rise, a certain gap is formed between the rear edge of the bearing plate 16 and the positioning plate 23, then the positioning translation cylinders 34 of the two positioning mechanisms drive the positioning columns 33 to approach the front edge of the bearing plate 16, and after the positioning translation cylinders are attached tightly, the bearing plate 16 is pushed backwards until the rear edge of the bearing plate 16 is attached tightly to the positioning plate 23. On the one hand, if the front edge/rear edge of the carrying plate 16 has a certain deviation, the position of the carrying plate 16 can be corrected by the two positioning mechanisms, on the other hand, because the carrying plate 16 is conveyed by the conveying belt 13, the conveying belt 13 is easy to deform to a certain extent for a long time, so that the conveying position of the carrying plate 16 has a certain deviation, and the two positioning mechanisms can also solve the problem by pushing the carrying plate 16 to position.

The end face of the connecting plate 17 facing the outside of the workbench 10 is provided with two notches 10-A, the positioning mechanism is arranged at the notch 10-A, and the positioning column 33 of the positioning mechanism can transversely move to the notches from the outside of the connecting plate 17 and is used for abutting against the side edges of the bearing plate 16. The positioning mechanisms for positioning the side edges and the front edge of the print frame 44 have the same structure, and only the direction setting is different, so the positioning mechanisms for positioning the side edges are not described in detail herein. Through setting up breach and positioning mechanism, make behind the location of contralateral margin on the one hand four borders of loading board 16 are all positioned for the stable shake or the drunkenness that can not appear in the printing in-process position of loading board 16, on the other hand also can be in the location in-process correct the position about loading board 16 for the printing position of printed matter is accurate.

The printing device comprises a fixed frame 41, a main frame 42, a moving mechanism 43, a printing frame 44 and two lifting mechanisms, wherein the fixed frame 41 is fixedly arranged on one side above a workbench 10, the main frame 42 is fixed on the fixed frame 41, the main frame 42 is positioned above the workbench 10, the moving mechanism 43 is assembled on the main frame 42 in a sliding mode and can reciprocate back and forth along the main frame 42, a plurality of reciprocating movement modes are realized, the moving mechanism 43 can be driven to reciprocate in a mode that a single transmission machine, a transmission wheel and a transmission chain are assembled in the main frame 42, and the prior art is not repeated. The moving mechanism 43 is provided with two printing lifting cylinders 431, the printing lifting cylinders 431 are respectively provided with a printing base 432, the bottoms of the two printing bases 432 are respectively and fixedly provided with a printing scraping blade, the surface of the screen printing plate is provided with paint, and the two printing scraping blades brush the paint on the surface of a printed matter through a screen pattern.

The front end and the rear end of the printing frame 44 are respectively fixed with the lifting mechanism, and the two lifting mechanisms are respectively fixed at the front end and the rear end of the main frame 42 and can drive the printing frame 44 to move up and down. The front end and the rear end of the main frame 42 are respectively provided with a frame arm 421 extending to the middle part of the front end and the rear end of the working table 10, the lifting mechanism comprises a lifting cylinder 51, two lifting guide pillars 52, a lifting connecting plate 53 and two connecting seats 54, the lifting cylinder 51 is fixed on the upper surface of the frame arm 421, a piston rod of the lifting cylinder is vertically arranged, the top end of the lifting connecting plate 53 is vertically fixed on the top end of the lifting cylinder, the two lifting guide pillars 52 vertically slide through the frame arm 421, the top end of the lifting connecting plate is respectively fixedly connected to the two ends of the lifting connecting plate 53, the bottom end of the lifting connecting plate is respectively fixedly connected to the connecting seats 54, the bottom end of the lifting guide pillar 52 is provided with a hinge element 521, the hinge element 521 is arranged inside the connecting seats 54 and is hinged to the connecting seats 54, if the surface of the printed matter is not horizontal, the screen printing plate pressed against the surface of the printed matter is also not horizontal, and this problem can be solved by providing the hinge 521 so that the printing frame 44 can be tilted to some extent.

The pressing frame 61 is connected between two side frames of the printing frame 44, the pressing frame 61 has a horizontally arranged pressing frame top plate 62 and a horizontally arranged pressing frame bottom plate 63, the pressing frame top plate 62 is fixedly provided with two pressing frame air cylinders 64, the two pressing frame air cylinders 64 are symmetrically arranged about the pressing frame 61, piston rods of the pressing frame air cylinders 64 are vertically arranged, bottom ends of the piston rods are provided with pressing pieces 65 for pressing the upper surface of the pressing frame bottom plate 63, and after the screen printing plate is pressed, one side of the pressing frame bottom plate 63 is connected with the bottom edge of the pressing frame 61, the pressing pieces 65 press the pressing frame bottom plate 63, so that the pressing of the screen printing plate is firm and reliable.

The pressing frame bottom plate 63 is provided with a through hole 630 corresponding to the pressing position of the pressing piece 65, the bottom surface of the pressing piece 65 is open, a vertical pressing rod 66 is arranged in the pressing piece 65, the pressing rod 66 extends out of the bottom opening, the pressing rod 66 can be slidably inserted into the through hole 630, and after long-time use, the connection between the pressing frame bottom plate 63 and the pressing frame 61 can be deformed to a certain extent, so that the pressing frame bottom plate 63 is not completely parallel to a screen printing plate, and the screen printing plate can be fixed by pressing the pressing rod 66 on the screen printing plate through the through hole.

The pressure frame top plate 62 is located two the both sides of pressure frame cylinder 64 are run through respectively and are provided with screwed pipe 67, screwed pipe 67 slides and passes vertical threaded rod 68, knob 69 is installed on the top of threaded rod 68, the bottom of threaded rod 68 is provided with pressure disk 681, pressure disk 681 compresses tightly pressure frame bottom plate 63, through the rotation knob 69 can with pressure disk 681 compresses tightly pressure frame bottom plate 63. The provision of the threaded rods 68 makes it possible, on the one hand, to reduce the deformations of the connection between the press frame base plate 63 and the press frame and, on the other hand, to intensify the pressing of the screen printing plate.

The two ends of the two pressing frames 61 are slidably assembled on the two side frames, the pressing frames 61 can slide along the front and back directions, the front frame/the back frame is provided with an adjusting cylinder 611, piston rods of the adjusting cylinder 611 are respectively connected with the two pressing frames 61, and the distance between the two pressing frames 61 can be adjusted through the adjusting cylinder 611, so that screen printing plates with different sizes can be dealt with.

The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. The printing machine rack is characterized by comprising a workbench, two transmission shafts, at least two lifting shafts, two conveying belts and a bearing plate, wherein the two transmission shafts are located at the front end and the rear end of the workbench, transmission wheels are arranged at the two ends of the transmission shafts and are sleeved with the conveying belts, the lifting shafts are located between the two transmission shafts, the transmission wheels are arranged at the two ends of the lifting shafts and are used for transmitting the conveying belts located above the lifting shafts, the two conveying belts are used for transmitting the bearing plate, and the lifting shafts can lift along the vertical direction and lift the conveying belts located above the lifting shafts.

2. The printer gantry of claim 1, wherein a lifting frame is provided under the lifting shaft, which has bearings at both ends and is used to connect both ends of the lifting shaft, and at least two lifting cylinders are provided, which are fixed to the table and have their piston rods vertically connected to the lifting frame.

3. The printer gantry of claim 2, wherein the workbench is fixedly provided with two vertical and hollow cylinder seats, a slidable connecting cylinder is axially arranged in the cylinder seat, the top of the connecting cylinder is fixedly connected to the bottom of the lifting frame, and the two cylinder seats are symmetrically arranged about the lifting frame.

4. The printer rack of claim 2, wherein fixing plates are fixedly arranged on two sides of the front end and the rear end of the workbench, and two ends of the two transmission shafts are vertically connected and installed on the fixing plates respectively.

5. A printer carriage as claimed in claim 4, characterised in that a web is fixedly connected between the two fixing plates on one side, said web having an elongated slot for receiving the conveyor belt above.

6. The printer carriage as claimed in claim 5, wherein a mounting bar is disposed in the elongated slot of the connecting plate for carrying the conveyor belt thereon, both ends of the mounting bar are fixedly connected to two lifting frames, respectively, and the mounting bar and the conveyor belt are separated from the elongated slot when the lifting shaft is lifted.

7. A printer stand according to claim 4, wherein at least one positioning lift cylinder is fixed to the front of the table, the piston rod of the positioning lift cylinder being vertically disposed and having a horizontally disposed positioning plate fixed to the top end thereof, the positioning plate being raised to abut against the rear edge of the carrier plate.

8. The printer rack as claimed in claim 7, wherein the front part of the workbench is provided with at least two positioning mechanisms, the positioning mechanisms comprise a positioning seat, a positioning frame, a positioning column and a positioning translation cylinder, the positioning seat is fixed on the workbench, the top surface of the positioning seat is provided with a slide rail and the positioning frame is slidably mounted on the positioning frame, the positioning translation cylinder is fixed on the positioning frame, a piston rod of the positioning translation cylinder is horizontally connected to the side part of the positioning frame, the positioning column is vertically arranged and fixed on the top part of the positioning frame, and the positioning column is used for abutting against the front edge of the bearing plate after being transversely moved.

9. A printer carriage as claimed in claim 8, characterised in that the end face of the web facing outside the table is provided with at least one notch, in that the positioning means are provided at the notch, the positioning post of the positioning means being movable laterally from the web to the notch and being adapted to abut against a side edge of the carrier plate.