CN210436799U

CN210436799U - Ink scraping device of raised printing machine

Info

Publication number: CN210436799U
Application number: CN201921037297.3U
Authority: CN
Inventors: 汤元跑
Original assignee: Shijiazhuang Tangyuan Anti Counterfeit Barcode Printing Co Ltd
Current assignee: Shijiazhuang Tangyuan Anti Counterfeit Barcode Printing Co Ltd
Priority date: 2019-07-04
Filing date: 2019-07-04
Publication date: 2020-05-01
Anticipated expiration: 2029-07-04

Abstract

The utility model relates to the technical field of raised letter printing equipment, in particular to a wiping device of a raised letter printing machine, which comprises a sliding frame, a wiping component and an ink return component which are arranged below the sliding frame, and a lifting component which is arranged on the sliding frame and controls the wiping component and the ink return component to respectively lift; the sliding frame is connected to the machine tool in a sliding mode; the ink scraping assembly and the ink returning assembly are both positioned above the screen, and the ink scraping assembly is positioned on one side of the ink returning assembly close to the material input end of the machine tool; the ink scraping assembly comprises a hanging plate and an ink scraping knife assembly arranged below the hanging plate, sliding grooves for adjusting the angle of the ink scraping knife assembly are formed in the two sides of the hanging plate, and an adjusting assembly capable of sliding along the sliding grooves and capable of being locked on the hanging plate is arranged at the top end of the ink scraping knife assembly; the angle of the ink scraping component can be adjusted, the screen is provided with proper scraping pressure intensity, the abrasion degree of the ink scraping component can be reduced, and therefore the printing quality can be improved.

Description

Ink scraping device of raised printing machine

Technical Field

The utility model relates to a technical field of type lithography apparatus, concretely relates to type printing machine's wiping arrangement.

Background

The raised characters, i.e. the characters with the height higher than that of other blank areas of the page, can be identified by touching with hands, and can be used in anti-counterfeiting printed matters. In the prior art, the raised printing machine mainly comprises a machine tool, a conveyor belt arranged on the machine tool, a screen fixed above the conveyor belt on the machine tool and a doctor blade connected to the machine tool in a sliding manner; the principle of printing the convex characters is as follows: continuously conveying materials to be printed on a conveyor belt, coating a film on the unnecessary grids on the screen mesh in advance for blocking according to the patterns or characters to be printed, then stacking a proper amount of ink on the screen mesh, properly scraping and pressing the ink on the screen mesh from the unblocked meshes through a doctor blade, and pressing and impressing the ink on the materials on the conveyor belt to form convex characters; in the ink scraping process, the ink scraping knife and the conveyor belt move forward in the same direction, and return after the ink scraping knife reaches the maximum stroke, the ink scraping knife can rise to be not in contact with the screen in the return process, ink scraped to the stroke terminal in the advancing process is stirred to the screen, then ink scraping and ink stirring returning are continued, and the continuous raised letter printing process can be realized through repeated operation.

The angle of the doctor blade in the prior art is fixed, so that the scraping strength of the doctor blade on the screen can not be flexibly adjusted, and when the requirements such as the height of a raised character to be printed and the like are changed, the printing requirement can be met only by replacing the printing machine with the doctor blade with the required angle; and the angle of the doctor blade is fixed, and the bottom of the doctor blade can be worn and torn after being used repeatedly for a period of time, and the doctor blade can not provide enough scraping pressure intensity for the screen cloth when being used continuously, so that the printing quality of the raised characters is influenced. In addition, in repeated ink scraping printing, the ink scraping blade needs to be used for ink stirring in the returning process, so that the ink adhesion degree on the ink scraping blade is increased, the ink dripping field in printing is increased, and the printing quality is influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a wiping arrangement of type printing machine can adjust the angle of wiping the china ink subassembly, for the screen cloth provides suitable scraping compressive strength to can reduce the degree of wear of wiping the china ink subassembly, thereby can improve printing quality.

The purpose of the utility model is realized through the following technical scheme:

the ink scraping device of the raised printing machine is used for scraping and pressing ink on a screen into the lower part of the screen, the screen is arranged on a machine tool of the raised printing machine and comprises a sliding frame, an ink scraping component and an ink returning component which are arranged below the sliding frame, and a lifting component which is arranged on the sliding frame and used for controlling the ink scraping component and the ink returning component to lift up and down respectively; the sliding frame is connected to the machine tool in a sliding mode; the ink scraping assembly and the ink returning assembly are both positioned above the screen, and the ink scraping assembly is positioned on one side of the ink returning assembly close to the material input end of the machine tool; the ink scraping component comprises a hanging plate and an ink scraping knife component arranged below the hanging plate, sliding grooves for adjusting angles of the ink scraping knife component are formed in two sides of the hanging plate, and an adjusting component capable of sliding along the sliding grooves and capable of being locked on the hanging plate is arranged at the top end of the ink scraping knife component.

Through adopting above-mentioned technical scheme, the carriage drives and scrapes the china ink subassembly and returns black subassembly and remove along the lathe, and the ink scraping knife subassembly in the china ink subassembly compresses tightly the screen cloth at the in-process that advances, extrudees the printing ink on the screen cloth and imprints on the material of below. After the ink is moved to a set terminal point, the lifting assembly controls the ink scraping assembly to ascend, controls the ink returning assembly to descend, enables the ink returning assembly to be close to the screen downwards and enables ink to be stirred back in the returning process; and after the set starting point is reached, the lifting assembly controls the ink returning assembly to ascend, controls the ink scraping assembly to descend and enables the ink scraping knife assembly to press the screen, and the process is repeated to realize the continuous raised character printing process. The utility model is provided with the ink return component, so that the ink scraping component is not needed to scrape the ink, a great amount of adhesion of the ink on the ink return knife component is avoided, the harm of ink dripping is reduced, and the printing quality is improved; the angle of the ink scraping knife assembly can be adjusted through the arrangement of the adjusting assembly and the sliding groove, and the angle of the ink scraping knife assembly can be adjusted under different requirements; and even if the scraping blade component is abraded, the requirement on the compression strength of the screen can still be met by adjusting the angle of the scraping blade component, so that the printing quality is improved.

Preferably, the spout is the arc wall, adjusting part is including the symmetry install the locking plate in link plate both sides and run through the retaining member of two locking plates, locking plate sliding connection be in the spout.

Through adopting above-mentioned technical scheme, the locking plate can slide in curved spout to the inclination that drives the ink scraping knife tackle spare changes, realizes the regulation to ink scraping knife tackle spare and screen cloth contained angle.

Preferably, the hanging plate is provided with a through hole, the through hole is an arc-shaped hole and is positioned in two sliding grooves and communicated with the two sliding grooves, and the locking piece can penetrate through the through hole.

Through adopting above-mentioned technical scheme, the setting of through-hole makes the retaining member can pierce through link plate and two locking plates and fix the three together to the joint strength between locking plate and the link plate has been improved.

Preferably, one side of the locking plate, which is close to the hanging plate, is fixedly provided with a sliding block, and the sliding block is connected in the sliding groove in a sliding manner.

Through adopting above-mentioned technical scheme, the setting of slider makes the locking plate buckle hang in the spout, has further improved the joint strength between locking plate and the link plate, has improved the stability of scraping china ink printing process, improves printing quality.

Preferably, the doctor blade assembly comprises a holder and a doctor blade mounted in the holder, and the bottom end of the locking plate is fixedly connected to the top end of the holder.

Preferably, a reinforcing plate is fixedly arranged at the top end of the cutter holder on one side, close to the ink return assembly, of the locking plate, the reinforcing plate is perpendicular to the locking plate, one side of the locking plate is fixed on the reinforcing plate, and the bottom end of the reinforcing plate is fixed at the top end of the doctor blade.

Through adopting above-mentioned technical scheme, the setting of reinforcing plate can play the effect of fixed ink scraping sword on the one hand, and on the other hand it is located the locking plate and is close to one side of returning black subassembly to can support for the locking plate provides, at the in-process that advances, reinforcing plate and locking plate are together for the ink scraping sword provides the stable support of overcoming the ink scraping resistance, rocks because of the unstability when avoiding scraping the ink, avoids appearing or the ghost image, thereby improves printing quality.

Preferably, the ink returning assembly comprises a mounting plate and an ink returning blade, the ink returning blade is fixed at the bottom end of the mounting plate, and the ink returning blade is obliquely arranged and has the same oblique direction as the ink scraping blade.

By adopting the technical scheme, the ink poking operation in the returning process is realized by the arrangement of the ink returning knife. The inclination directions of the ink return blade and the ink scraping blade are consistent, so that ink scraped to one end of the ink scraping blade can be pulled back to be fully coated on the screen as far as possible by the ink return blade, and the situation that the ink does not exist at the set starting point of the ink scraping blade and can be scraped to influence the printing quality due to too large distance between the ink return blade and the ink scraping blade is avoided.

Preferably, the width of the ink returning blade is larger than that of the ink scraping blade, and flanges are integrally arranged on two sides of the bottom end of the ink returning blade and are positioned on one side, close to the ink scraping blade, of the ink returning blade.

Through adopting above-mentioned technical scheme, the width of ink return sword is greater than the width of ink scraping sword, makes ink return sword can scrape the ink of ink scraping sword to the terminal point as far as and dial back, and the edge is crowded into from the both sides of ink return sword to the cooperation flange, can avoid ink.

Preferably, the lifting assembly comprises a first air cylinder and a second air cylinder which are installed on the sliding frame, the first air cylinder controls the ink scraping assembly to lift, and the second air cylinder controls the ink returning assembly to lift.

Through adopting above-mentioned technical scheme, realize scraping black subassembly and returning black independent automatic control of subassembly.

Preferably, both sides of the sliding frame are provided with sliding rails used for being in sliding connection with a sliding rail on the machine tool.

Through adopting above-mentioned technical scheme, the setting of slide rail makes the carriage can take wiping subassembly, ink return subassembly and lifting unit to slide along the lathe to realize the printing process of type.

To sum up, the utility model discloses following beneficial effect has:

(1) the angle of the doctor blade assembly can be adjusted by arranging the adjusting assembly and the sliding groove, so that the pressing strength of the doctor blade assembly on the screen is ensured, and the printing quality is improved;

(2) the ink return component is arranged, adverse effects on the ink scraping blade component caused by ink return of the ink scraping component in the traditional process can be avoided, the degree of abrasion of the ink scraping blade component can be reduced, the ink dripping incidence rate is reduced, and the printing quality is further improved.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the ink scraping assembly from one side thereof;

FIG. 3 is a schematic view of a locking plate removed from the hanging plate;

fig. 4 is a schematic view of a reinforcing plate removed from a hanging plate.

In the figure: 1. a carriage; 11. a slide rail; 21. a first cylinder; 22. a second cylinder; 31. hanging the plate; 311. a chute; 312. a through hole; 41. a tool holder; 42. a doctor blade; 43. a reinforcing plate; 431. a boss; 51. a locking plate; 511. a slider; 52. a butterfly nut; 61. mounting a plate; 62. returning the ink knife; 621. and (7) blocking edges.

Detailed Description

The present invention will be further described with reference to the accompanying drawings.

The utility model discloses a wiping device of a raised letter printing machine, which is used for wiping ink on a screen and pressing the ink into the lower part of the screen, the screen is arranged on a machine tool of the raised letter printing machine, as shown in figure 1, the wiping device comprises a rectangular sliding frame 1, a wiping component and an ink returning component which are arranged below the sliding frame 1, and a lifting component which is arranged on the sliding frame 1 and controls the lifting of the wiping component and the ink returning component; the ink scraping assembly is positioned on one side of the ink returning assembly close to the material input end of the machine tool. Two parallel slide rails 11 are arranged on two sides of the sliding frame 1, and the slide rails 11 can be matched and slidably connected with a slide rail on a machine tool, so that the sliding frame 1 can slide on the machine tool together with the ink scraping assembly and the ink returning assembly. Lifting unit is including installing first cylinder 21 and the second cylinder 22 on carriage 1 to in first cylinder 21 and the equal vertical embedding carriage 1 of second cylinder 22, and the telescopic link all can stretch out downwards from carriage 1 bottom.

As shown in fig. 1, the doctor assembly includes a hanging plate 31 disposed perpendicular to the bottom surface of the carriage 1 and a doctor blade assembly installed below the hanging plate 31, and the end of the telescopic rod of the first cylinder 21 is fixed to the top end of the hanging plate 31 for controlling the lifting of the whole doctor blade assembly. The doctor blade assembly includes a holder 41 and a doctor blade 42 mounted in the holder 41, the holder 41 being conventional and not described further herein. The hanging plate 31 is positioned above the middle part of the tool holder 41, the two sides of the hanging plate 31 perpendicular to the material transmission direction are both provided with arc-shaped sliding grooves 311 for adjusting the angle of the ink scraping knife assembly, and angle marks with the angle of 10-40 degrees are engraved beside the sliding grooves 311 on the hanging plate 31, so that the angle control is facilitated. The hanging plate 31 is provided with a through hole 312, and the two sliding grooves 311 are communicated through the through hole 312. The through hole 312 is an arc-shaped hole and has the same arc as that of the slide slot 311.

As shown in fig. 2 and 3, an adjusting assembly is fixedly arranged at the top end of the tool holder 41, the adjusting assembly comprises locking plates 51 symmetrically arranged on two sides of the hanging plate 31 perpendicular to the material conveying direction and bolts penetrating through the two locking plates 51, the locking plates 51 are square plates, butterfly nuts 52 are arranged after the bolts penetrate through the through holes 312 and the two locking plates 51, the tightness of the two locking plates 51 can be adjusted by rotating the butterfly nuts 52, and angle adjustment can be performed after loosening is performed. The bottom fixed connection of locking plate 51 is on the top of cutter holder 41 to one side that is close to link plate 31 is fixed and is provided with curved slider 511, and the radian of slider 511 is unanimous with the radian of spout 311, thereby the sliding connection that can match improves the locking intensity between locking plate 51 and the link plate 31 in spout 311. In order to further improve the stability of the doctor blade 42 during the ink scraping process, the top end of the holder 41 is fixedly provided with a reinforcing plate 43 at one side of the locking plate 51 close to the ink returning assembly, the reinforcing plate 43 is perpendicular to the locking plate 51 and the hanging plate 31, and the bottom end of the reinforcing plate is fixed to the top end of the doctor blade 42. One side of the locking plate 51 is fixed on the reinforcing plate 43, as shown in fig. 4, an arc-shaped boss 431 is integrally arranged at the top end of one side of the reinforcing plate 43 close to the hanging plate 31, and the boss 431 can be matched and slidably connected in the sliding groove 311, so that the connection stability of the doctor blade assembly and the hanging plate 31 is further improved.

As shown in fig. 1, the ink returning assembly includes a mounting plate 61 and an ink returning blade 62, the top end of the ink returning blade 62 is fixed at the bottom end of the mounting plate 61, and the top end of the mounting plate 61 is fixed at the end of the telescopic rod of the second cylinder 22, so as to realize the lifting of the whole ink returning assembly. The ink return blade 62 is disposed obliquely in the same direction as the direction of inclination of the doctor blade 42. In order to make the ink be smoothly returned in the return process, as shown in fig. 2, the width of the ink return blade 62 is greater than the width of the ink scraping blade 42, so that the ink can be scraped in the ink scraping process of the ink scraping blade 42, and the ink shortage at the end part can be avoided. The two sides of the bottom end of the ink return blade 62, which are perpendicular to the material conveying direction, are integrally provided with a retaining edge 621, and the retaining edge 621 is located on one side of the ink return blade 62, which is close to the doctor blade 42, and is used for blocking ink which is pulled back by the ink return blade 62 in the return process, so that the phenomenon that a large amount of ink is squeezed into the edges of the two sides of the screen to influence the printing quality is avoided.

Fig. 3 and 4 are views for explaining the structure of the locking plate 51 and the reinforcing plate 43, not assembly views thereof, and the connection mode with the hanging plate 31 and the holder 41 follows the description of the text.

The utility model discloses an implement the principle specifically as follows:

presetting parameters of a first air cylinder 21 and a second air cylinder 22, automatically controlling by a PLC (programmable logic controller) in a control system of the raised letter printing machine, controlling the doctor blade 42 to press the screen by the first air cylinder 21, driving the doctor blade 42 to retract upwards after the sliding frame 1 advances to a set terminal point of the screen, controlling the ink return blade 62 to descend to be close to the screen but not to be contacted with the screen by the second air cylinder 22, and avoiding the interference of the ink return blade 62 in printing; after returning to the starting point, the first air cylinder 21 controls the doctor blade 42 to contact with the screen downwards, the second air cylinder 22 controls the ink returning blade 62 to lift, and the steps are repeated; in the printing process, the doctor blade 42 and the screen are arranged at an included angle, and in the forward moving process, the doctor blade 42 compresses the screen and leaks ink on the screen from the unblocked meshes, and the ink is pressed on the material conveyed below the screen to form a raised character; when the doctor blade 42 reaches a set terminal point, the doctor blade 42 is lifted, the ink return blade 62 is lowered, ink scraped to the terminal point by the doctor blade 42 is returned and coated on the screen, and the operation is repeated so as to realize continuous scraping and leakage of the ink.

When the scraping blade 42 is used for a period of time, the compression strength between the scraping blade 42 and the screen is reduced due to abrasion, at the moment, the butterfly nut 52 is screwed, and the locking plate 51 slides to a proper angle along the sliding groove 311, so that the compression force between the scraping blade 42 and the screen is moderate, and double images or excessive thickness caused by serious ink leakage due to excessive compression force and breakpoints caused by too small compression force are avoided, thereby improving the printing quality.

The above-mentioned embodiments are merely illustrative of the present invention, and are not intended to limit the present invention, and those skilled in the art can make modifications to the embodiments without inventive contribution as required after reading the present specification, but all the embodiments are protected by patent laws and protection within the scope of the present invention.

Claims

1. The utility model provides a strickle device of embossed character printing machine for scrape the printing ink on the screen cloth and rub and impress the screen cloth below, the screen cloth is installed on embossed character printing machine's lathe, its characterized in that: the ink recovery device comprises a sliding frame (1), a wiping component and an ink return component which are arranged below the sliding frame (1), and a lifting component which is arranged on the sliding frame (1) and controls the wiping component and the ink return component to lift respectively; the sliding frame (1) is connected to the machine tool in a sliding manner; the ink scraping assembly and the ink returning assembly are both positioned above the screen, and the ink scraping assembly is positioned on one side of the ink returning assembly close to the material input end of the machine tool; the ink scraping component comprises a hanging plate (31) and an ink scraping knife component arranged below the hanging plate (31), sliding grooves (311) for adjusting angles of the ink scraping knife component are formed in two sides of the hanging plate (31), and the top end of the ink scraping knife component is provided with an adjusting component which can slide along the sliding grooves (311) and can be locked on the hanging plate (31).

2. The squeegee apparatus of a raised letter printing press according to claim 1, wherein: spout (311) are the arc wall, adjusting part is including the symmetry install locking plate (51) and the retaining member that runs through two locking plates (51) in link plate (31) both sides, locking plate (51) sliding connection be in spout (311).

3. The squeegee apparatus of a raised letter printing press according to claim 2, wherein: through-hole (312) have been seted up on link plate (31), through-hole (312) are the arc hole and are located two in spout (311) and communicate two spout (311), the retaining member can run through-hole (312).

4. The squeegee apparatus of a raised letter printing press according to claim 3, wherein: one side of the locking plate (51) close to the hanging plate (31) is fixedly provided with a sliding block (511), and the sliding block (511) is connected in the sliding groove (311) in a sliding manner.

5. The squeegee apparatus of a raised letter printing press according to claim 3, wherein: the scraping blade assembly comprises a cutter holder (41) and a scraping blade (42) installed in the cutter holder (41), and the bottom end of the locking plate (51) is fixedly connected to the top end of the cutter holder (41).

6. The squeegee apparatus of a raised letter printing press according to claim 5, wherein: the top end of the cutter holder (41) is fixedly provided with a reinforcing plate (43) on one side of a locking plate (51) close to the ink return assembly, the reinforcing plate (43) is perpendicular to the locking plate (51), one side of the locking plate (51) is fixed on the reinforcing plate (43), and the bottom end of the reinforcing plate (43) is fixed at the top end of the doctor blade (42).

7. The squeegee apparatus of a raised letter printing press according to claim 5, wherein: the ink return assembly comprises a mounting plate (61) and an ink return blade (62), the ink return blade (62) is fixed at the bottom end of the mounting plate (61), and the ink return blade (62) is obliquely arranged and has the same oblique direction as that of the doctor blade (42).

8. The squeegee apparatus of a raised letter printing press according to claim 7, wherein: the width of the ink return blade (62) is larger than that of the ink scraping blade (42), two sides of the bottom end of the ink return blade (62) are integrally provided with a retaining edge (621), and the retaining edge (621) is located on one side, close to the ink scraping blade (42), of the ink return blade (62).

9. The squeegee apparatus of a raised letter printing press according to claim 1, wherein: the lifting assembly comprises a first cylinder (21) and a second cylinder (22) which are installed on the sliding frame (1), the first cylinder (21) controls the ink scraping assembly to lift, and the second cylinder (22) controls the ink returning assembly to lift.

10. The squeegee apparatus of a raised letter printing press according to claim 1, wherein: the two sides of the sliding frame (1) are provided with sliding rails (11) which are used for being in sliding connection with the sliding ways on the machine tool.