Gravure ink throwing prevention device

Abstract

The utility model relates to the technical field of gravure printing machines, and discloses a gravure ink throwing prevention device which comprises a gravure plate, a scraper installation frame and a fixing frame, an oil scraping knife is installed on the outer surface of the scraper installation frame, a tooth row is fixedly connected to the outer surface of the front side of the oil scraping knife, two supporting shafts are rotationally connected to the outer surface of the top of the fixing frame, and the two supporting shafts are fixedly connected to the outer surface of the top of the fixing frame. The outer surfaces of the two supporting shafts are fixedly sleeved with a first half gear and a second half gear correspondingly, a motor is fixedly installed on the outer surface of the bottom of the fixing frame, and silk-screen meshes are installed at the two ends of the oil scraper correspondingly. According to the gravure ink throwing prevention device, a motor works in cooperation with a transmission gear, a synchronous belt wheel and a synchronous toothed belt so that a first half gear and a second half gear can drive tooth rows in the opposite directions to make an oil scraper move in a reciprocating mode, ink is fully scraped, and all ink thrown out of the two ends of a gravure plate can be basically blocked by silk screen gauze; and therefore, the gravure printing quality is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the intaglio printing machine technical field, concretely is an intaglio printing anti-ink throwing device. BACKGROUND

[0002] Intaglio printing machine is intaglio printing machine, and the intaglio printing machine is a kind of machine using intaglio printing to print, and printing principle is as follows: intaglio printing plate is pressed on intaglio printing plate, to drive paper transmission, and intaglio printing plate is engraved with groove to form printing pattern, and when printing, intaglio printing plate lower part is immersed in ink, and scraper is installed on scraper mounting frame, and scraper outer edge is tightly attached to intaglio printing plate surface, and the ink on the surface of intaglio printing plate is scraped clean, and the ink in the groove of intaglio printing plate cannot be scraped by scraper, at this time, the ink in the groove can be printed on paper to form predetermined pattern.

[0003] In prior art, the ink on the surface of intaglio printing plate is scraped by installing scraper, to prevent fixed position scraping from causing incomplete scraping and large abrasion, reciprocating scraper can be used to scrape the ink on intaglio plate, and part of ink cannot be effectively scraped at both ends of intaglio printing plate, and more ink is concentrated at both ends due to scraper movement, so that ink at both ends can be directly thrown on paper to form ink dot during high-speed rotation of intaglio printing plate, which affects printing quality, therefore an intaglio printing anti-ink throwing device is proposed. UTILITY MODEL CONTENT

[0004] In view of the deficiencies in prior art, the utility model provides an intaglio printing anti-ink throwing device to solve the problems mentioned in the background.

[0005] To achieve the above object, the utility model provides the following technical scheme: an intaglio printing anti-ink throwing device, comprising intaglio printing plate, scraper mounting frame, press roll and fixing frame, the outer surface of scraper mounting frame is provided with oil scraping knife, the oil scraping knife is located at the side of intaglio printing plate, the front side outer surface of scraper mounting frame is fixedly connected with gear row, the top outer surface of fixing frame is rotatably connected with two supporting shafts, the outer surfaces of two supporting shafts are respectively fixedly provided with first half gear and second half gear, the bottom outer surface of fixing frame is fixedly installed with motor, the output end of motor is fixedly connected with one of supporting shafts, and the both ends of oil scraping knife are provided with screen mesh.

[0006] Further, the top outer surface of fixing frame is rotatably connected with two transmission shafts, the outer surfaces of two transmission shafts are fixedly provided with transmission gear, and the outer surfaces of two transmission gears are movably engaged.

[0007] Further, the outer surfaces of two supporting shafts and two transmission shafts are fixedly provided with synchronous pulley, and synchronous toothed belt is wound between the synchronous pulleys on the outer surfaces of adjacent two supporting shafts and transmission shafts.

[0008] Further, the bottom outer surface of the tooth row is fixedly connected with a plurality of sliding blocks, the outer surface of the fixed frame is fixedly connected with two vertical plates, the two vertical plates are fixedly connected with a sliding rod, and the plurality of sliding blocks are sleeved on the outer surface of the sliding rod.

[0009] Further, the diameter of the pressure roller at both ends is smaller than the diameter at the middle section.

[0010] Further, when the first half gear engages with the tooth row, the second half gear disengages with the tooth row, and when the second half gear engages with the tooth row, the first half gear disengages with the tooth row.

[0011] Compared with the prior art, the utility model has the advantages that:

[0012] 1、The device can make the first half gear and the second half gear drive the tooth row in opposite directions to make the oil scraper reciprocate and fully scrape the ink, and the ink thrown out from both ends of the intaglio printing plate can be basically blocked by the screen mesh, thereby improving the intaglio printing quality. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a front view structural schematic diagram of the utility model;

[0014] Figure 2 It is a bottom view structural schematic diagram of the utility model;

[0015] Figure 3 It is a front view structural schematic diagram of the utility model Figure 1 It is an enlarged structural schematic diagram of A in the middle.

[0016] In the drawing: 1, intaglio printing plate; 2, scraper mounting frame; 3, oil scraper; 4, fixed frame; 5, tooth row; 6, motor; 7, supporting shaft; 8, first half gear; 9, second half gear; 10, screen mesh; 11, transmission shaft; 12, transmission gear; 13, synchronous pulley; 14, synchronous toothed belt; 15, sliding block; 16, sliding rod; 17, pressure roller. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0018] Embodiment 1:

[0019] Please refer toFigures 1-3 The utility model provides a kind of technical scheme: a concave printing anti-throwing ink device, including concave printing plate 1, scraper mounting frame 2, press roll 17 and fixed frame 4, scraper mounting frame 2's outer surface is equipped with oil scraper 3, oil scraper 3 is located in the side of concave printing plate 1, the front side outer surface of scraper mounting frame 2 is fixedly connected with gear row 5, the top outer surface of fixed frame 4 is rotatably connected with two support shafts 7, the outer surface of two support shafts 7 is respectively fixedly equipped with first half gear 8 and second half gear 9, the bottom outer surface of fixed frame 4 is fixedly installed with motor 6, the output end of motor 6 is fixedly connected with one of support shafts 7, and the both ends of oil scraper 3 are equipped with silk screen gauze 10, specifically, motor 6 works, drives one support shaft 7 to rotate, so that the first half gear 8 on it rotates, when the first half gear 8 is engaged with the surface of gear row 5, the second half gear 9 is disengaged from the surface of gear plate, so that the first half gear 8 drives gear row 5 to move to one side, so that oil scraper 3 moves to one side, when the first half gear 8 is disengaged from the surface of gear row 5, the second half gear 9 is engaged with the surface of gear row 5, so that the second half gear 9 drives gear row 5 to move to the other side, so that oil scraper 3 moves to the other side, with the reciprocating movement of oil scraper 3 driven by the working of motor 6, prevent fixed position scraping may cause not clean and large wear, installed silk screen gauze 10 can naturally be placed on both ends of concave printing plate 1, the ink thrown out from both ends can continuously keep silk screen gauze 10 in ink wetting state, can be attached to the surface of both ends of concave printing plate 1, the ink thrown out from both ends of concave printing plate 1 can be basically blocked by silk screen gauze 10, so as to improve the quality of intaglio printing.

[0020] In the embodiment, the top outer surface of fixed frame 4 is rotatably connected with two transmission shafts 11, the outer surface of two transmission shafts 11 is fixedly equipped with transmission gear 12, the outer surface of two transmission gears 12 is movably engaged, specifically, one of transmission shafts 11 rotates and drives the transmission gear 12 on it to rotate, so that the other transmission gear 12 rotates reversely, so that the rotating directions of two transmission shafts 11 are opposite, so that two support shafts 7 rotate in opposite directions.

[0021] In the embodiment, the outer surface of two support shafts 7 and two transmission shafts 11 is fixedly equipped with synchronous pulley 13, and synchronous toothed belt 14 is wound between the synchronous pulleys 13 on the outer surfaces of adjacent two support shafts 7 and transmission shafts 11, specifically, when the support shaft 7 connected with the output end of motor 6 rotates, the synchronous pulley 13 on it rotates, one transmission shaft 11 rotates under the action of synchronous toothed belt 14, two support shafts 7 and two transmission shafts 11 rotate synchronously under the action of another set of synchronous pulley 13 and synchronous toothed belt 14.

[0022] In the embodiment, the bottom outer surface of the gear row 5 is fixedly connected with a plurality of sliding blocks 15, the outer surface of the fixed frame 4 is fixedly connected with two vertical plates, the two vertical plates are fixedly connected with a sliding rod 16, and the plurality of sliding blocks 15 are sleeved on the outer surface of the sliding rod 16. Specifically, when the gear row 5 moves, the sliding blocks 15 slide on the outer surface of the sliding rod 16, so that the gear row 5 can stably move in a straight line.

[0023] In the embodiment, the diameters of the two ends of the compression roller 17 are smaller than the diameter of the middle section, and specifically, the above technical solution ensures that the silk screen gauze 10 will not be pressed by the compression roller 17 to cause tearing.

[0024] In the embodiment, when the first half gear 8 engages with the gear row 5, the second half gear 9 disengages from the gear row 5, and when the second half gear 9 engages with the gear row 5, the first half gear 8 disengages from the gear row 5. Specifically, when the first half gear 8 engages with the surface of the gear row 5, the second half gear 9 disengages from the surface of the gear row 5, so that the first half gear 8 drives the gear row 5 to move to one side, so that the oil scraper 3 moves to one side. When the first half gear 8 disengages from the surface of the gear row 5, the second half gear 9 engages with the surface of the gear row 5, so that the second half gear 9 drives the gear row 5 to move to the other side, so that the oil scraper 3 moves to the other side.

[0025] Working principle: the utility model discloses in use, the printing material paper is conveyed from the pressure roller 17 and the gravure plate 1 between, and the pressure roller 17 is pressed on the gravure plate 1, to drive the paper transmission, and the gravure plate 1 is engraved with the recess groove and forms the printing pattern, and the oil scraper 3 outer edge is tightly attached gravure plate 1 surface, and the ink on the gravure plate 1 surface is scraped clean, and the ink in the recess groove of gravure plate 1 is not scraped by the oil scraper 3, at this moment, the ink in the recess groove can be printed on the paper and form the predetermined pattern, and through the motor 6 work, the motor 6 drives the support shaft 7 connected with its output end is connected, and drives the first half gear 8 and synchronous pulley 13 on it rotation, under the action of synchronous toothed belt 14, drive shaft 11 is rotated, and drive gear 12 on it is rotated, under the transmission effect of another drive gear 12, synchronous pulley 13 and synchronous toothed belt 14 make first half gear 8 and second half gear 9 rotate to the opposite direction, when first half gear 8 and the surface of the gear row 5 are engaged, second half gear 9 is disengaged from the surface of the toothed plate, so that first half gear 8 drives the gear row 5 to move to one side, so that the oil scraper 3 moves to one side, when first half gear 8 and the surface of the gear row 5 are disengaged, second half gear 9 and the surface of the gear row 5 are engaged, so that second half gear 9 drives the gear row 5 to move to the other side, so that the oil scraper 3 moves to the other side, with the work of motor 6 drives the oil scraper 3 reciprocating movement, prevent fixed position scraping may cause scraping not clean and the abrasion is bigger, the installed silk screen 10 can naturally be placed on both ends of gravure plate 1, and the ink splashed out from both ends can continuously keep silk screen 10 in the ink soaking state, can be attached on the surface of both ends of gravure plate 1, and the ink splashed out from both ends of gravure plate 1 can be basically blocked by silk screen 10, so as to improve the gravure printing quality.

[0026] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A device for preventing ink from being thrown off in intaglio printing, comprising an intaglio plate (1), a doctor blade mounting frame (2), a pressure roller (17) and a fixing frame (4), characterized in that: The outer surface of the scraper mounting frame (2) is provided with an oil scraping knife (3), the oil scraping knife (3) is located at the side of the intaglio plate (1), the front side outer surface of the scraper mounting frame (2) is fixedly connected with a gear row (5), the top outer surface of the fixed frame (4) is rotatably connected with two supporting shafts (7), the outer surfaces of the two supporting shafts (7) are respectively fixedly sleeved with a first half gear (8) and a second half gear (9), the bottom outer surface of the fixed frame (4) is fixedly installed with a motor (6), the output end of the motor (6) is fixedly connected with one of the supporting shafts (7), and the both ends of the oil scraping knife (3) are provided with screen printing gauze (10).

2. A device for preventing ink from being thrown off in intaglio printing according to claim 1, characterized in that: The top outer surface of the fixed frame (4) is rotatably connected with two transmission shafts (11), the outer surfaces of the two transmission shafts (11) are fixedly sleeved with transmission gears (12), and the outer surfaces of the two transmission gears (12) are movably engaged.

3. A device for preventing ink spillage in intaglio printing according to claim 2, characterized in that: The outer surfaces of the two supporting shafts (7) and the two transmission shafts (11) are fixedly sleeved with synchronous pulleys (13), and the synchronous toothed belts (14) are wound between the synchronous pulleys (13) on the outer surfaces of the adjacent two supporting shafts (7) and transmission shafts (11).

4. The device of claim 1, wherein: The bottom outer surface of the gear row (5) is fixedly connected with a plurality of sliding blocks (15), the outer surface of the fixed frame (4) is fixedly connected with two vertical plates, the sliding blocks (15) are sleeved on the outer surface of the sliding rod (16).

5. The device of claim 1, wherein: The diameters of the two ends of the compression roller (17) are smaller than that of the middle section.

6. A device for preventing ink flinging in intaglio printing according to claim 1, characterized in that: When the first half gear (8) is engaged with the gear row (5), the second half gear (9) is disengaged from the gear row (5), and when the second half gear (9) is engaged with the gear row (5), the first half gear (8) is disengaged from the gear row (5). When the first half gear (8) is engaged with the gear row (5), the second half gear (9) is disengaged from the gear row (5), and when the second half gear (9) is engaged with the gear row (5), the first half gear (8) is disengaged from the gear row (5).

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