CN219990616U

CN219990616U - Paper positioning device of printing machine

Info

Publication number: CN219990616U
Application number: CN202320391767.6U
Authority: CN
Inventors: 陈雄兵
Original assignee: Shanghai Meitu Digital Technology Co ltd
Current assignee: Shanghai Meitu Digital Technology Co ltd
Priority date: 2023-03-06
Filing date: 2023-03-06
Publication date: 2023-11-10
Anticipated expiration: 2033-03-06

Abstract

The utility model relates to the technical field of printing products and discloses a paper positioning device of a printing machine, which comprises a conveyor belt, wherein support plates are bolted on two sides of the conveyor belt, a plurality of supports are bolted on the top of the support plates, a hydraulic rod is bolted below the supports, a plurality of press rollers are arranged above the conveyor belt, a transverse plate is bolted on an output shaft of the hydraulic rod, a compression spring is fixed on the top of the transverse plate, a fixing plate is bolted on the top of the press rollers, and the bottom ends of the compression springs are fixedly connected with the fixing plate; according to the utility model, the screw is driven to rotate by the driving mechanism, so that the threaded sleeves at two sides of the surface of the screw drive the movable plate to do relative motion through the vertical rods, thereby changing the distance between the limiting rollers at two sides, ensuring that the limiting rollers at two sides synchronously move, ensuring that the limited paper is positioned at the center of the conveyor belt, preventing the paper from deviating, and the distance between the limiting rollers is adjustable, thereby being suitable for paper with different widths.

Description

Paper positioning device of printing machine

Technical Field

The utility model relates to the technical field of printed products, in particular to a paper positioning device of a printing machine.

Background

Modern printing machine generally comprises mechanisms such as loading, inking, embossing, paper feeding (including folding) and the like, and the working principle is as follows: the characters and images to be printed are made into printing plate, and then the printing plate is mounted on a printer, then the ink is applied on the place where the characters and images are on the printing plate by means of manual or printer, then directly or indirectly transferred onto the printing stock, and the printing stock comprises paper, textile, metal plate, plastic, leather, wood plate, glass and ceramic, etc. so as to duplicate the same printed matter as the printing plate.

The printer in the prior art often needs people to position and calibrate paper, and this process is comparatively complicated, if the positioning and the calibration of paper are not carried out, the printed pattern can produce the skew relative to paper edge, and in addition, the paper in the transportation process is in case the condition of perk limit appears, not only easy off tracking, but also easily cause printing inaccuracy, influence printing effect.

Disclosure of Invention

The present utility model is directed to a paper positioning device for a printing press, which solves the above-mentioned problems.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a printing machine paper positioner, includes the conveyer belt, the equal bolt in both sides of conveyer belt has the extension board, the top bolt of extension board has a plurality of support, the below bolt of support has the hydraulic stem, the top of conveyer belt is provided with a plurality of press roller, the output shaft bolt of hydraulic stem has the diaphragm, the top of diaphragm is fixed with compression spring, the top bolt of press roller has the fixed plate, and compression spring's bottom and fixed plate fixed connection, the both sides at extension board top are all bolted with the link plate, the surface rotation of link plate is connected with the screw rod, one side the surface of extension board still is provided with actuating mechanism, the equal threaded connection in both sides on screw rod surface has the swivel nut, the bottom of swivel nut is fixed with the montant, the both sides of conveyer belt top all are provided with the movable plate, the bottom and the movable plate bolt of montant, one side of movable plate is fixed with spacing roller through the bearing.

Preferably, the driving mechanism comprises a supporting table, a driving motor and a transmission rod, wherein the supporting table is bolted on one side of the surface of the support plate, the driving motor is bolted on the top of the supporting table, the transmission rod is fixed with an output shaft of the driving motor, and the transmission rod is connected with a screw rod through bevel gear transmission.

Preferably, the top of the supporting table is also bolted with a plurality of supporting plates, and the transmission rod penetrates through the supporting plates and is mutually fixed with the penetrating positions of the transmission rod through bearings.

Preferably, the top bolt of movable plate has a plurality of dead lever, the top bolt of dead lever has the sliding sleeve, the top of extension board still bolt has the locating plate, and one side bolt of locating plate has the slide bar, sliding sleeve and the surface sliding connection of slide bar.

Preferably, the screw threads on the surface of the screw rod are symmetrically designed, and the length of the screw rod is longer than that of the sliding rod.

Preferably, the number of the limit rollers is a plurality of limit rollers and the limit rollers are equidistantly arranged, and the length of the moving plate is the same as that of the conveying belt.

Compared with the prior art, the utility model has the following beneficial effects:

1. according to the utility model, the screw is driven to rotate by the driving mechanism, so that the threaded sleeves at two sides of the surface of the screw drive the movable plate to do relative motion through the vertical rods, thereby changing the distance between the limiting rollers at two sides, ensuring that the limiting rollers at two sides synchronously move, ensuring that the limited paper is positioned at the center of the conveyor belt, preventing the paper from deviating, and the distance between the limiting rollers is adjustable, thereby being suitable for paper with different widths.

2. According to the utility model, the transverse plate, the compression spring and the fixing plate are driven to descend by opening the hydraulic rod, so that the pressing roller presses down the paper, the situation that the paper warps in the transportation process is prevented, and the problem that the paper warps to deviate and the printing is inaccurate can be avoided.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of a partial structure of the present utility model;

FIG. 3 is a schematic view of the structure of the screw and the driving mechanism of the present utility model;

FIG. 4 is a schematic view of a moving plate according to the present utility model;

FIG. 5 is a schematic view of the structure of the bracket according to the present utility model;

fig. 6 is a schematic view of a partial structure in the present utility model.

In the figure: 1. a conveyor belt; 2. a support plate; 3. a bracket; 4. a hydraulic rod; 5. a cross plate; 6. a compression spring; 7. a fixing plate; 8. a pressing roller; 9. a connecting plate; 10. a screw; 11. a screw sleeve; 12. a vertical rod; 13. a moving plate; 14. a limit roller; 15. a fixed rod; 16. a sliding sleeve; 17. a positioning plate; 18. a slide bar; 19. a driving mechanism; 191. a support table; 192. a driving motor; 193. a transmission rod; 194. and a support plate.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Referring to fig. 1-6, a paper positioning device for a printing machine comprises a conveying belt 1, wherein two sides of the conveying belt 1 are respectively bolted with a support plate 2, the top of the support plate 2 is bolted with a plurality of supports 3, the lower part of each support 3 is bolted with a hydraulic rod 4, a plurality of press rollers 8 are arranged above the conveying belt 1, an output shaft of each hydraulic rod 4 is bolted with a transverse plate 5, the top of each transverse plate 5 is fixedly provided with a compression spring 6, the top of each press roller 8 is bolted with a fixed plate 7, the bottom end of each compression spring 6 is fixedly connected with the fixed plate 7, two sides of the top of the support plate 2 are respectively bolted with a connecting plate 9, the surface of each connecting plate 9 is rotationally connected with a screw rod 10, the penetrating parts of each screw rod 10 and each connecting plate 9 are mutually fixed through bearings, so that the screw rod 10 can rotate, the surface of one side support plate 2 is also provided with a driving mechanism 19, two sides of the surface of each screw rod 10 are respectively screwed with a threaded sleeve 11, the bottom of each threaded sleeve 11 is fixedly provided with a vertical rod 12, two sides above the conveying belt 1 are respectively provided with a movable plate 13, the bottom of each vertical rod 12 and one side of each movable plate 13 are fixedly connected with one side of the movable plate 13, one side 13 is fixedly connected with one side of the movable plate 13 through each movable plate 13 through one side 13, and the fixed plate is provided with a plurality of bearings 14, and the fixed rolls are respectively with the fixed rolls are respectively, and each fixed with the length is equal length and each fixed with each movable plate 13.

The driving mechanism 19 comprises a supporting table 191, a driving motor 192 and a driving rod 193, wherein the supporting table 191 is bolted to the surface of a side supporting plate 2, the driving motor 192 is bolted to the top of the supporting table 191, the driving rod 193 is fixed to an output shaft of the driving motor 192, the driving rod 193 is connected with a screw 10 through bevel gear transmission, the driving motor 192 is started, the output shaft of the driving motor can drive the driving rod 193 to rotate, then the driving rod 193 drives the screw 10 to rotate through the bevel gear, the effect of providing power for the screw 10 is achieved, a plurality of supporting plates 194 are also bolted to the top of the supporting table 191, and the driving rod 193 penetrates through the supporting plates 194 and is mutually fixed to the penetrating parts through bearings, so that the driving rod 193 can rotate and provides supporting points for the driving rod 193, and the stability of the driving rod 193 is improved.

Because the whole weight of the movable plate 13 acts on the surface of the screw rod 10 through the vertical rod 12 and the threaded sleeve 11, in order to prevent the screw rod 10 from being bent, a plurality of fixing rods 15 are bolted to the top of the movable plate 13, sliding sleeves 16 are bolted to the top of the fixing rods 15, positioning plates 17 are also bolted to the top of the support plates 2, sliding rods 18 are bolted to one sides of the positioning plates 17, the sliding sleeves 16 are in sliding connection with the surface of the sliding rods 18, the movable plate 13 can drive the sliding sleeves 16 to move through the fixing rods 15 in the moving process, the sliding sleeves 16 do sliding motion on the surface of the sliding rods 18, so that the movable plate 13 can share the gravity, the bending of the screw rod 10 is prevented, threads on the surface of the screw rod 10 are symmetrically designed, and accordingly the threaded sleeves 11 on two sides of the surface of the screw rod 10 can do opposite or opposite directions in the rotating process of the screw rod 10, and the length of the screw rod 10 is greater than that of the sliding rods 18.

Working principle: in the use, firstly, measure the width of paper, then start driving motor 192 and drive screw rod 10 rotation, the swivel nut 11 of screw rod 10 surface both sides begins to do relative motion under the effect of screw thread this moment, it drives movable plate 13 and spacing roller 14 through montant 12 together and removes, until the distance of both sides spacing roller 14 is slightly greater than the width of paper, in the in-process of carrying paper to the printing machine, open conveyer belt 1, conveyer belt 1 carries the paper, paper and spacing roller 14 contact, spacing roller 14 can rotate, and spacing roller 14 can prevent paper off tracking, the interval of both sides spacing roller 14 is adjustable, adapt to the paper of different width, simultaneously according to the width of paper opening corresponding quantity hydraulic rod 4, the hydraulic rod 4 that is located movable plate 13 top is not opened, prevent that pressing roller 8 from falling at the top of movable plate 13, the opening of hydraulic rod 4 makes self output shaft extension, then drive diaphragm 5, compression spring 6 and fixed plate 7 decline, afterwards pressing roller 8 below fixed plate 7 presses the surface of paper, with the paper flattening, and the effort that compression spring 6 can be through fixed plate 7 and the opposite force of pressing roller 8 can press the paper on the surface of paper, and prevent paper warp, and paper warp can prevent not influence because of paper warp, moreover, paper can not be pressed to the paper is just prevented.

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

Claims

1. A sheet positioning device for a printing press, comprising a conveyor belt (1), characterized in that: the utility model provides a conveyer belt (1) both sides all bolt have extension board (2), the top bolt of extension board (2) has a plurality of support (3), the below bolt of support (3) has hydraulic stem (4), the top of conveyer belt (1) is provided with a plurality of pressure gyro wheel (8), the output shaft bolt of hydraulic stem (4) has diaphragm (5), the top of diaphragm (5) is fixed with compression spring (6), the top bolt of pressure gyro wheel (8) has fixed plate (7), and the bottom and the fixed plate (7) fixed connection of compression spring (6), the both sides at extension board (2) top all bolt have link plate (9), the surface rotation of link plate (9) is connected with screw rod (10), one side the surface of extension board (2) still is provided with actuating mechanism (19), the both sides on screw rod (10) surface all threaded connection has swivel nut (11), the bottom of swivel nut (11) is fixed with montant (12), the bottom of conveyer belt (1) top is provided with fixed plate (13) and the montant of removal (13), both sides through fixed plate (13).

2. A printer paper positioning device according to claim 1, wherein: the driving mechanism (19) comprises a supporting table (191), a driving motor (192) and a transmission rod (193), wherein the supporting table (191) is bolted on one side on the surface of the supporting plate (2), the driving motor (192) is bolted on the top of the supporting table (191), the transmission rod (193) is fixed with an output shaft of the driving motor (192), and the transmission rod (193) is connected with the screw (10) through bevel gear transmission.

3. A printer paper positioning device according to claim 2, wherein: the top of the supporting table (191) is also bolted with a plurality of supporting plates (194), and the transmission rod (193) penetrates through the supporting plates (194) and is mutually fixed with the penetrating positions of the transmission rod and the supporting plates through bearings.

4. A printer paper positioning device according to claim 1, wherein: the top bolt of movable plate (13) has a plurality of dead lever (15), the top bolt of dead lever (15) has sliding sleeve (16), the top of extension board (2) still bolt has locating plate (17), and one side bolt of locating plate (17) has slide bar (18), sliding sleeve (16) and slide bar (18) surface sliding connection.

5. A printer paper positioning device as in claim 4, wherein: the screw threads on the surface of the screw rod (10) are symmetrically designed, and the length of the screw rod (10) is longer than that of the sliding rod (18).

6. A printer paper positioning device according to claim 1, wherein: the number of the limit rollers (14) is a plurality of the limit rollers and the limit rollers are equidistantly arranged, and the length of the moving plate (13) is the same as that of the conveying belt (1).