TWI659858B - Inclined gravure printing scraper holder with automatic knife adjustment function - Google Patents

Abstract

An oblique gravure printing scraper holder with automatic knife adjustment function is provided with two vertical plates opposite to each other, and a plate cylinder and a shaft are arranged in parallel between the vertical plates, and the shaft is provided with at least one fixed A fixed seat is connected to a clamp seat, and a scraper is arranged through the clamp seat. Among them, a front-rear adjustment unit, an angle adjustment unit and a lift adjustment unit are further provided, which can automatically drive the fixed seat relative to the The plate cylinder moves, rotates and lifts to automatically adjust the distance, relative angle and height of the scraper before and after the plate cylinder reaches the purpose of automatic knife adjustment, and it can solve the problem of changing the plate. Wasted time for knife adjustment and reduced the situation that manual knife adjustment may cause unstable printing quality.

Description

Inclined gravure printing scraper holder with automatic knife adjustment function

The present invention relates to a scraper seat of a gravure printing machine, and more particularly to an oblique gravure printing scraper seat with an automatic knife adjustment function.

Gravure printing is widely used in the printing industry because it has the advantages of high speed, high print resistance, strong ink color, rich colors, and a wide range of printed materials. Generally speaking, existing gravure printing machines mainly have a fixed base. A plate cylinder is arranged on the fixed seat, and a scraper seat is arranged adjacent to the plate cylinder. The scraper seat is provided with a scraper, and the scraper abuts against the surface of the plate cylinder. The printing plate cylinder picks up ink and scrapes off excess ink through the scraper to accurately transfer the required ink to a printed matter.

In addition, in order for the doctor blade to effectively remove unnecessary ink, the existing gravure printing machine is further provided with front, rear, angle and height adjustment mechanisms to adjust the distance, angle and height of the doctor blade against the printing plate cylinder. However, The existing blade adjustment mechanism of the existing gravure printing machine is mostly designed as a three-axis vertical adjustment type, and the manual screw is used for adjustment. Therefore, it depends on the user's experience, and it takes a lot of time to accurately adjust and optimize the blade. The position and angle have a great influence on the printing speed and the quality of the brush. In addition, the three-axis vertical adjustment design has a complicated structure, and the screw extension is relatively small during adjustment. Large, weak supporting force, easy to cause the squeegee to shake, so after observing the above shortcomings, the inventor of the case believes that the squeegee seat of the existing gravure printing press needs to be further improved, and the invention has been produced. .

The main purpose of the present invention is to provide an oblique gravure printing blade holder with an automatic knife adjustment function, which can automatically adjust the distance, relative angle and height of the blade before and after it abuts against the plate cylinder.

In order to achieve the above-mentioned object, the inclined gravure printing scraper holder with automatic knife adjustment function provided by the present invention includes a body, and the system has two vertical plates disposed oppositely, and the vertical plates are provided with a pair of corresponding ones. A shaft hole and a pair of elongated holes. In addition, the body has a printing plate cylinder. The two ends of the printing plate cylinder are pivotally arranged at the shaft holes, so that the printing plate cylinder can rotate relative to the vertical plates. The body further has two sliding seats, and the sliding seats are slidably disposed in the elongated holes, respectively, so that the sliding seats can slide along the elongated holes, and at the same time, the body further has a shaft. The ends are pivoted on the slide bases respectively, so that the shaft can rotate relative to the slide bases, and slide relative to the vertical plate with the drive of the slide bases. In addition, the body further includes at least one fixed base, The fixing base is arranged on the shaft, and the fixing base is connected with a clamp seat, and a scraper is clamped through the clamp seat, and further includes a front-rear adjustment unit, which is arranged on the fixing seat and connected to the fixing seat. Holder for driving the holder The plate cylinder is moved back and forth in the direction to adjust the distance between the scraper and the plate cylinder; and an angle adjustment unit is provided on the sliding seat and connected to the shaft, which can drive the shaft to rotate, In conjunction with the fixing base rotating relative to the plate cylinder, The angle between the scraper and the plate cylinder is further adjusted; there is also a lifting adjustment unit, which is arranged on the vertical plate and is connected to at least one sliding seat for driving the sliding seat to slide along the elongated hole for interlocking The shaft and the fixed seat move up and down relative to the printing plate cylinder, thereby adjusting the height between the scraper and the printing plate cylinder.

The inclined gravure printing scraper holder with automatic knife adjustment function provided by the present invention can automatically drive the fixed seat to move, rotate and lift relative to the plate cylinder through the front and rear adjustment unit, the angle adjustment unit and the lifting adjustment unit. In order to automatically adjust the distance, relative angle and height of the scraper blade against the printing plate cylinder, the purpose of automatic knife adjustment is achieved, and the waste of time for reverting the knife due to the difference in the size of the plate during the plate change can be solved, and the waste of time can be reduced, and the reduction Manual knife adjustment may cause unstable printing quality.

100‧‧‧Scraper Block

10‧‧‧ Ontology

11‧‧‧ stand

111‧‧‧shaft hole

112‧‧‧perforation

113‧‧‧ long hole

114‧‧‧ sliding section

115‧‧‧ Pivot

12‧‧‧ plate cylinder

13‧‧‧sliding seat

14‧‧‧ shaft

15‧‧‧Fixed

151‧‧‧Slip hole

16‧‧‧clip

17‧‧‧Scraper

20‧‧‧Front and rear adjustment unit

21‧‧‧coil

22‧‧‧Screw

23‧‧‧ pulley set

24‧‧‧Front and rear drive source

25‧‧‧Adjust handwheel

30‧‧‧Angle adjustment unit

31‧‧‧ base

32‧‧‧ Worm

33‧‧‧ Bevel Gear Set

34‧‧‧Angle Drive

35‧‧‧Angle adjustment handwheel

36‧‧‧worm gear

40‧‧‧Elevation adjustment unit

41‧‧‧Driver

411‧‧‧Tooth

42‧‧‧Linking lever

421‧‧‧first gear

422‧‧‧Second Gear

43‧‧‧Tooth row

44‧‧‧ Lifting drive source

441‧‧‧ pulley set

45‧‧‧Lifting and adjusting handwheel

Figure 1 is a perspective view of a preferred embodiment of the present invention.

Figure 2 is a perspective view of the preferred embodiment of the present invention in another direction.

FIG. 3 is a cross-sectional view of a front-back adjustment unit according to a preferred embodiment of the present invention.

FIG. 4 is a schematic diagram of the operation of the front-back adjustment unit of the preferred embodiment of the present invention.

FIG. 5 is a sectional view of an angle adjusting unit according to a preferred embodiment of the present invention.

FIG. 6 is a schematic diagram of the operation of the angle adjusting unit according to the preferred embodiment of the present invention.

FIG. 7 is a perspective view of a lifting adjustment unit according to a preferred embodiment of the present invention.

FIG. 8 is a side view of a lifting adjustment unit according to a preferred embodiment of the present invention.

FIG. 9 is a schematic diagram of the operation of the lifting adjustment unit of the preferred embodiment of the present invention.

Please refer to FIG. 1 and FIG. 2, which are perspective views of a preferred embodiment of the present invention, which discloses an oblique gravure printing scraper holder with an automatic knife adjustment function. The scraper holder 100 includes: a body 10, which has two vertical plates 11 opposite to each other. These vertical plates 11 are respectively provided with a pair of shaft holes 111 and a pair of perforations 112, and a pair of long holes 113, and are provided adjacent to the perforations 112. A plurality of sliding parts 114 arranged vertically and a plurality of pivot joints 115 arranged horizontally. In addition, the body 10 further has a printing plate cylinder 12, and two ends of the printing plate cylinder 12 are pivotally arranged in the shaft holes 111. The printing plate cylinder 12 can be rotated relative to the vertical plates 11, and the body 10 further has two sliding seats 13, and the sliding seats 13 are respectively slidably disposed in the long holes 113 so that the sliding seats 13 It can slide along the long hole 113, and at the same time, the main body 10 further has a shaft 14, and two ends of the shaft 14 are pivoted on the sliding seats 13, respectively, so that the shaft 14 can be opposed to the sliding seats 13. Turning movement, and sliding movement relative to the vertical plate 11 with the driving of the sliding bases 13, in addition, the body 10 Comprising at least one holder 15, the fixing base 15 provided on the line shaft 14, and the fixing base 15 is connected with a line clamp seat 16, and through the clamp seat 16 is provided with a blade 17 interposed.

A front-rear adjustment unit 20 is provided on the fixing base 15 and is connected to the clamp base 16 for driving the clamp base 16 to move forward and backward in the direction of the plate cylinder 12 to adjust the scraper 17 and the plate cylinder 12 The distance between.

An angle adjusting unit 30 is provided on the slide base 13 and connected to the shaft 14 for driving the shaft 14 to rotate, so as to link the fixing base 15 to rotate with respect to the plate cylinder 12 to adjust the scraper. The angle between 17 and the plate cylinder 12.

A lifting adjustment unit 40 is disposed on the vertical plate 11 and is connected to at least one sliding seat 13 for driving the sliding seat 13 to slide along the elongated hole 113 to link the shaft 14 and the fixing seat 15. Move up and down relative to the plate cylinder 12 to adjust the height between the scraper 17 and the plate cylinder 12.

Please refer to FIG. 3 and FIG. 4 again, which are cross-sectional views and action diagrams of the front-back adjustment unit of the preferred embodiment of the present invention. The fixing base 15 is provided with a sliding hole 151 in the direction of the plate cylinder 12. The front-rear adjustment unit 20 has a solenoid 21 slidably disposed in the slide hole 151. The solenoid 21 is connected to the clamp base 16 at one end facing the printing plate cylinder 12, and the other end of the solenoid 21 is The screw is provided with a screw 22, and the screw 22 is connected to a front and rear driving source 24 through a pulley set 23. The front and rear driving source 24 is selected from an air motor. In addition, the screw 22 is further connected to a front and rear adjusting hand wheel 25. Thereby, the front and rear driving source 24 can drive the pulley set 23 to rotate, so as to drive the screw 22 through the pulley set 23 to screw the solenoid 21 to slide forward and backward along the axial direction of the sliding hole 151, thereby further driving the clamp The seat 16 moves back and forth in the direction of the plate cylinder 12 to adjust the distance between the scraper 17 and the plate cylinder 12, wherein the user can also drive the screw 22 through the front and rear adjustment handwheels 25 to manually adjust the scraper The distance between 17 and the plate cylinder 12 .

Please refer to FIG. 5 and FIG. 6 again, which are cross-sectional views and schematic diagrams of the angle adjustment unit of the preferred embodiment of the present invention. The angle adjustment unit 30 has a base 31 provided on one of the slide bases 13, The base 31 is pivotally provided with a worm 32, and the worm 32 is transmitted through An bevel gear set 33 is connected to an angle drive source 34, wherein the angle drive source 34 is selected from an explosion-proof motor, and the worm 32 is further connected to an angle adjustment handwheel 35, and the angle adjustment unit 30 further has a worm gear 36. The worm gear 36 is sleeved on the shaft 14 and meshes with the worm 32, so that the angle driving source 34 can drive the bevel gear set 33 to rotate and drive the bevel gear set 33 through the bevel gear set 33. The worm 32 rotates the worm wheel 36, so that the worm wheel 36 rotates in conjunction with the shaft 14, and the shaft 14 can be used to synchronously drive the fixing base 15 to rotate relative to the printing plate drum 12, and the scraper 17 and the printing plate can be adjusted. The angle between the rollers 12, wherein the user can also drive the worm 32 through the angle adjustment handwheel 35 to manually adjust the angle between the scraper 17 and the plate cylinder 12.

Please refer to FIG. 7 to FIG. 9 again, which are perspective views, side views, and action diagrams of the lifting adjustment unit of the preferred embodiment of the present invention, and please refer to FIG. 1 for reference. The lifting adjustment unit 40 has A driving rod 41 is pivoted on one of the pivotal joints 115. The driving rod 41 is provided with a tooth portion 411. In addition, the lifting adjustment unit 40 has one of the pivoting holes 112 as shown in FIG. A linkage gear 42 is provided with a first gear 421, the first gear 421 is meshed with the tooth portion 411, and two ends of the linkage lever 42 are respectively connected with a second gear 422, and The lifting adjustment unit 40 further has two tooth rows 43 slidably disposed on the sliding portion 114 of each vertical plate 11, and the tooth rows 43 are connected and fixed to the corresponding sliding seat 13 and are engaged with the corresponding second gear 422. At the same time, the lifting adjusting unit 40 further has a lifting driving source 44 fixed on one of the vertical plates 11. The lifting driving source 44 is connected to the driving rod 41 through a pulley set 441, wherein the lifting driving source 44 is Is selected from an AC motor, and the driving rod 41 is further connected with a Drop adjustment hand wheel 45, whereby the lifter rotatably driving source 44 through the driving shaft of the driving pulley assembly 44141, and let the driver The lever 41 further drives the first gear 421 through the tooth portion 411 to rotate the linkage lever 42 so that the linkage lever 42 can simultaneously drive the teeth rows 43 to move up and down through the second gears 422 to link the sliding The seat 13 slides along the elongated hole 113, and the shaft 14 and the fixed seat 15 are further moved up and down relative to the plate cylinder 12 to further adjust the height between the scraper 17 and the plate cylinder 12, wherein The user can also drive the driving lever 41 through the lifting and adjusting hand wheel 45 to manually adjust the height between the scraper 17 and the plate cylinder 12. It is worth mentioning that the long holes 113 are from the bottom At an angle of 10 to 20 degrees, the upper side gradually extends away from the outside of the printing plate cylinder 12, so that the doctor blade 17 can adjust the height of the printing plate cylinder 12 obliquely upward and downward.

Hereby, the features of the present invention and the expected effects that can be achieved are stated as follows:

1. The inclined gravure printing scraper holder 100 with automatic knife adjustment function of the present invention can be further connected to an external control unit, so that the external control unit can control the front-rear adjustment unit 20 and the angle according to the built-in control logic. The adjusting unit 30 and the lifting adjusting unit 40 automatically drive the fixing base 15 to move, rotate and lift relative to the printing plate cylinder 12 to automatically adjust the distance, relative angle and height of the scraper 17 before and against the printing plate cylinder 12 , To achieve the purpose of automatic knife adjustment, and can solve the time change, due to the different size of the plate around the callback time wasted time, and reduce the manual knife adjustment may cause unstable printing quality.

2. The oblique gravure printing scraper holder 100 with automatic knife adjustment function of the present invention, the front-rear adjustment unit 20, the angle adjustment unit 30 and the lifting adjustment unit 40 are arranged on the same axis, except that the structure can be simplified for easy installation The front-rear drive source 24, the angle-adjustment source 34, and the lift-adjustment source 44 can further strengthen the overall structural strength, so that the doctor blade 17 is less prone to shake when scraping ink.

3. The oblique gravure printing scraper holder 100 with automatic knife adjustment function of the present invention, the long holes 113 are gradually inclined from the bottom to the direction away from the plate cylinder 12 at an oblique angle of 10 to 20 degrees. Extended, so that the scraper 17 can adjust the height obliquely up and down with respect to the plate cylinder 12, so that when the plate change encounters a larger plate circumference, the scraper 17 can be moved backwards while rising Ink scraping space is less cramped, and when the plate change becomes smaller when the plate change is encountered, the scraper 17 can be approached forward while lowering, which can improve the adaptability of the plate change and reduce the front and rear adjustment unit. The elongation of 20 reduces the sloshing of the scraper 17 by one step.

4. The inclined gravure printing scraper holder 100 with automatic knife adjustment function of the present invention allows the user to manually adjust the scraper 17 through the front-rear adjustment hand wheel 25, the angle adjustment hand wheel 35, and the lifting adjustment hand wheel 45. The abutting distance, relative angle and height between the front and back of the printing plate cylinder 12 make the present invention have the functions of automatic knife adjustment and manual knife adjustment.

5. The oblique gravure printing scraper holder 100 with automatic knife adjustment function of the present invention, since the front-rear adjustment unit 20 and the angle-adjustment unit 30 are close to the plate cylinder 12 and belong to the printing danger area, the front-rear drive source 24 It is selected from the air motor, and the angle driving source 34 is selected from the explosion-proof motor, which can achieve the effect of explosion-proof and splash-proof, so as to improve safety.

In summary, the present invention has excellent progress and practicality among similar products. At the same time, it has traversed domestic and foreign technical data on such structures. It has not been found in the literature that the same structure exists first. Therefore, The present invention already has the elements of an invention patent, and the application is filed according to law.

However, the above is only one of the preferred feasible embodiments of the present invention. Therefore, any equivalent structural changes made by applying the description of the present invention and the scope of patent application should be included in the patent scope of the present invention.

Claims (8)

An oblique gravure printing scraper holder with an automatic knife adjusting function, which comprises a body, and the system has two vertical plates oppositely arranged. The vertical plates are provided with a pair of shaft holes and a pair of long holes, In addition, the body further has a printing plate cylinder, and two ends of the printing plate cylinder are pivotally arranged at the shaft holes, so that the printing plate cylinder can be rotated relative to the vertical plates, and the body further has two sliding seats. The sliding bases are respectively slidably disposed in the long holes, so that the sliding bases can slide along the long holes, and the body is further provided with a shaft, and the two ends of the shaft are respectively pivoted on the slides. Seat, so that the shaft can rotate relative to the sliding seats, and slide relative to the vertical plate with the driving of the sliding seats, in addition, the body further includes at least one fixed seat, the fixed seat is arranged on the shaft And, the fixed seat is connected with a clip seat, and a scraper is clamped through the clip seat. Its main feature is: a front and rear adjustment unit, which is arranged on the fixed seat and connected to the clip seat, which can be driven. The clamp seat moves forward and backward in the direction of the plate cylinder To adjust the distance between the scraper and the plate cylinder; an angle adjustment unit is provided on the slide base and connected to the shaft, which can drive the shaft to rotate, so as to link the fixed base with respect to the printing plate The plate cylinder rotates to adjust the angle between the scraper and the plate cylinder. A lifting adjustment unit is arranged on the vertical plate and connected to at least one sliding seat, which can drive the sliding seat to slide along the long hole. To adjust the height between the scraper and the printing plate cylinder by moving the shaft and the fixed seat up and down relative to the printing plate cylinder; wherein the vertical plates are respectively provided with a pair of perforations and are adjacent to the perforation A plurality of sliding parts arranged vertically and a plurality of pivot joints arranged horizontally are provided, and the lifting adjustment unit has a driving lever pivotally arranged on the pivot joints, the driving lever is provided with a tooth part, and The lifting adjustment unit further has a linkage rod pivotally arranged in the perforations, the linkage rod system is provided with a first gear, the first gear system is meshed with the tooth portion, and the two ends of the linkage rod are respectively Connected with a first Gear, and the lifting adjustment unit further has two tooth rows slidably arranged on the sliding part of each vertical plate, and these tooth rows are connected and fixed to the corresponding sliding seat and mesh with the corresponding second gear, and The lifting adjusting unit further has a lifting driving source fixed on one of the vertical plates, the lifting driving source is connected to the driving rod; wherein the driving rod is further connected with a lifting adjusting hand wheel. According to the oblique gravure printing blade holder with automatic knife adjustment function described in item 1 of the scope of patent application, wherein the long holes are gradually moved away from the printing plate cylinder from an angle of 10 to 20 degrees from bottom to top It extends obliquely outward. According to the oblique gravure printing blade holder with automatic knife adjustment function described in item 1 of the scope of patent application, wherein the fixed seat is provided with a slide hole in the direction of the plate cylinder, and the front-rear adjustment unit has a slide setting A spiral tube in the slide hole is connected to the clamp base at one end facing the printing plate cylinder, and a screw is screwed at the other end of the spiral tube, and the screw system is connected with a front and rear drive source. According to the oblique gravure printing scraper holder with automatic knife adjustment function described in item 3 of the scope of patent application, the screw system is further connected with a front-rear adjustment handwheel. According to the oblique gravure printing scraper holder with automatic knife adjustment function described in item 3 of the scope of patent application, the front and rear drive source is an air motor. According to the inclined gravure printing scraper holder with automatic knife adjustment function described in item 1 of the scope of patent application, wherein the angle adjustment unit has a base provided on the sliding base, and the base is pivotally provided with a worm, The worm is connected with an angle driving source. In addition, the angle adjusting unit further has a worm gear. The worm gear is sleeved on the shaft and meshes with the worm. According to the inclined gravure printing scraper holder with automatic knife adjustment function described in item 6 of the scope of the patent application, the worm system is further connected with an angle adjustment hand wheel. According to the inclined gravure printing scraper holder with automatic knife adjustment function described in item 6 of the scope of the patent application, the angle driving source is an explosion-proof motor.