Ink scraping device with adjustable ink scraping angle for tipping paper gravure press

Abstract

The utility model discloses an ink scraping angle adjustable ink scraping device for a tipping paper gravure press, which comprises a knife rest, an ink scraping knife and a rotating mechanism, the left end and the right end of the knife rest are respectively a rotating end and an ink scraping end, the ink scraping knife is arranged in a mounting groove of the knife rest, and the rotating mechanism comprises a mounting frame, an adjusting sleeve and a rotating rod. The adjusting sleeves are installed at the midpoints of the top faces of the two supports of the installation frame, the two ends of the rotating rod are located in the two adjusting sleeves respectively, and the tool rest is connected with a rod body of the rotating rod through a connecting plate at the rotating end. The rotating mechanism is arranged on the knife rest, and after the mounting frame is mounted at the corresponding position of the printing machine, the rotating handle can be used for driving the rotating rod to rotate so as to drive the knife rest and the scraper on the knife rest to rotate to complete angle adjustment, then the locking bolt is used for locking and positioning, the adjusting process is simple and rapid, and the ink scraping effect is improved; the printing effect is better, printing ink is saved, the structure is simple, the cost is low, and the production and manufacturing cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to printing technical field, concretely relates to a kind of ink scraping device with adjustable ink scraping angle for water-flux paper intaglio printing machine. BACKGROUND

[0002] Intaglio printing refers to the printing mode that text and image are lower than the surface of printing plate. The working principle of intaglio printing machine is that printing plate roller is soaked in ink tank, and the excess ink on the surface of printing plate is scraped clean by doctor blade after printing plate roller rotates up, and then paper is pressed on printing plate roller by impression roller, so that the ink on the intaglio image is transferred to paper, thereby completing printing.

[0003] The doctor blade plays a very important role in intaglio printing, and the printing quality depends on the doctor blade to a great extent. The function of the doctor blade is to scrape off the excess ink in the non-printing area, and the ink in the printing area is transferred to the film through the doctor blade. Therefore, the doctor blade angle needs to be adjusted according to the actual printing requirements. At present, the doctor blade is fixedly installed on the printing machine by the knife holder and fastener after the angle is determined. If the angle of the doctor blade needs to be changed during production, the machine must be shut down to adjust the angle position of the knife holder and the doctor blade. The adjustment process is not only time-consuming and laborious, but also requires stoppage operation, which greatly affects the work efficiency.

[0004] In order to solve this problem, Chinese utility model patent CN201820916423.1 discloses a kind of adjustable angle doctor blade seat, including first base plate and second base plate, the right side of the first base plate is provided with recess, the inner wall of the recess is movably installed with connecting plate, the left side of the first base plate and the right side of the second base plate are both fixedly installed with mounting lug, the top of the connecting plate is provided with positioning hole, the top of the first base plate is inserted with positioning rod passing through the positioning hole and extending to the inner wall bottom of recess, the bottom of the first base plate and the second base plate is respectively fixedly installed with first support seat and second support seat. This device can quickly adjust the angle of scraping blade and the distance between scraping blade and printing plate cylinder, and improve the ink scraping effect. However, the structure is relatively complex due to too many components, which is not easy to maintain and replace, and the cost is relatively high. SUMMARY

[0005] To solve the above problems, the utility model provides a kind of ink scraping blade holder with adjustable ink scraping angle for water-flux paper intaglio printing machine, which is simple in structure, easy to use and low in cost.

[0006] In order to achieve the above object, the utility model discloses the following technical scheme: a kind of adjustable ink scraping angle's ink scraping device for water-based paper intaglio press, including mounting bracket, tool rest, ink scraping knife and rotating mechanism, the left and right sides of tool rest are respectively rotating end and ink scraping end, the rotating end of tool rest is fixedly installed with multiple equidistance arranged connecting plate, and arc-shaped mounting slot is opened in connecting plate, and threaded hole is opened in mounting slot, the mounting slot of ink scraping end is opened with the mounting slot of ink scraping knife, and the tool rest above the mounting slot is opened with the locking hole of threaded structure, locking knob is equipped in locking hole, the scraping surface of ink scraping knife is straight blade structure, is arranged in the mounting slot of tool rest, the upper side of ink scraping knife is equipped with back knife, and both are locked and positioned by locking knob, and the scraping surface of ink scraping knife is 3-4mm from the end of back knife.

[0007] The mounting bracket is composed of two supports arranged oppositely, the support is connected by a top plate and an "L"-shaped rod, the bottom surface of the top plate is provided with a mounting slot, the length of the mounting slot is the same as the length of the top surface of the "L"-shaped rod, the width of the mounting slot is 5-8mm larger than the width of the top surface of the "L"-shaped rod, threaded holes are formed on the side end surface and the front end surface of the mounting slot away from the tool rest, and adjusting knobs and adjusting bolts are arranged in the threaded holes, respectively, the top surface of the "L"-shaped rod is located in the mounting slot of the top rod, a threaded hole plate is arranged on the end of the horizontal end, and a connecting rod is arranged between the "L"-shaped rods of the two supports.

[0008] The rotating mechanism includes an adjusting sleeve and a rotating rod, the adjusting sleeve is a hollow cylindrical structure with two open surfaces, bearings are arranged at positions close to the ports inside the adjusting sleeve, threaded locking holes are formed on the side wall of the adjusting sleeve between the two bearings, and locking bolts are arranged in the threaded locking holes, the number of the adjusting sleeves is two, and the adjusting sleeves are oppositely arranged at the midpoint of the top surface of the two supports of the mounting bracket, and the threaded locking holes are arranged upward; the rotating rod is a circular rod, a connecting hole corresponding to the threaded hole of the connecting plate on the rotating end of the tool rest is formed on the rod body of the rotating rod, the two ends of the rotating rod are located in the two adjusting sleeves, respectively, and are rotatably connected to the adjusting sleeves through the bearings inside the adjusting sleeves, and a rotating handle is arranged on one end of the rotating rod, and the rotating handle and the rotating rod are connected through a conical gear box.

[0009] The tool rest is connected to the rod body of the rotating rod through the connecting plate of the rotating end, and the threaded hole and the connecting hole therebetween are correspondingly locked and fixed together by bolts.

[0010] As an optimization scheme of the case, in order to improve the stability of the ink scraping after angle adjustment, an auxiliary supporting mechanism is arranged below the tool rest.

[0011] Further, the auxiliary support mechanism comprises a top rod and a bottom rod, the top rod is located in the bottom rod, a threaded hole is arranged on the outer circumferential surface below the opening of the top surface of the bottom rod, a limiting bolt is arranged in the threaded hole, the bottom of the bottom rod is connected with the connecting rod on the mounting frame through a rotating shaft, and the top of the top rod is connected with the bottom surface of the tool holder through a rotating shaft.

[0012] As an optimization scheme of the present application, in order to facilitate quick angle adjustment, an angle measurer is installed on the support near the rotating handle of the mounting frame, and the zero line of the angle measurer coincides with the bottom surface when the ink scraping knife is horizontally arranged.

[0013] Beneficial effects: the rotating mechanism is arranged on the tool holder, and after the mounting frame is installed at the corresponding position of the printing machine, the rotating handle is used to drive the rotating rod to rotate, so that the tool holder and the ink scraping knife thereon are rotated to complete angle adjustment, and then the locking bolt is locked and positioned, the adjustment process is simple and fast, the ink scraping effect is improved, the printing effect is better, ink is saved, the structure is simple, the cost is low, and the production manufacturing cost is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a structural schematic view of the utility model.

[0015] Figure 2 It is a structural schematic view of the utility model. Figure 1

[0016] Figure 3 It is a structural schematic view of the utility model when adjusting the angle.

[0017] Figure 4 It is a structural schematic view of the utility model. Figure 3

[0018] In the drawing: 1, tool holder;2, connecting plate;3, locking knob;4, support;5, adjusting sleeve;6, rotating rod;7, connecting rod;8, locking bolt;9, rotating handle;10, top rod;11, bottom rod;12, angle measurer;13, adjusting knob;14, ink scraping knife;15, back knife. DETAILED DESCRIPTION

[0019] The utility model is further described below in combination with the drawings and examples.

[0020] Wherein, same parts are indicated by same reference numerals. It should be noted that the words "front", "back", "left", "right", "up" and "down" used in the following description refer to the directions in the drawings, and the words "inner" and "outer" refer to the directions towards or away from the geometric center of a particular component, and the drawings are in a very simplified form and use non-precise ratios, only to facilitate and clearly assist in explaining the purpose of the embodiments of the utility model. ​​

[0021] like Figures 1-4 As shown, this embodiment discloses an adjustable squeegee angle device for a cork paper gravure printing machine, which is used to adjust the squeegee angle of the squeegee blade. Specifically, it includes a mounting frame, a blade holder 1, a squeegee blade 14, and a rotating mechanism.

[0022] See Figure 1 and Figure 3 The left and right sides of the blade holder 1 are the rotating end and the scraping end, respectively. Multiple equidistant connecting plates 2 are fixedly installed on the rotating end of the blade holder 1, and the connecting plates 2 have arc-shaped mounting grooves with threaded holes. The scraping end has a mounting groove for placing the scraping blade, and the blade holder 1 above the mounting groove has a threaded locking hole with a locking knob 3. The scraping surface of the scraping blade 14 is a straight blade structure and is set in the mounting groove of the blade holder 1. A back blade 15 is provided above the scraping blade 14. The two are locked and limited by the locking knob 3, and the scraping surface of the scraping blade extends 4mm beyond the end of the back blade.

[0023] from Figure 1 and Figure 2 As can be seen, the mounting bracket consists of two supports 4 arranged opposite to each other. Each support 4 is composed of a top plate and an "L"-shaped rod. The bottom surface of the top plate has a mounting groove. The length of the mounting groove is the same as the length of the top surface of the "L"-shaped rod, and the width is 5-8mm wider than the top surface width of the "L"-shaped rod. Threaded through holes are provided on the side end face and the front end face of the mounting groove away from the tool holder. An adjustment knob 13 and an adjustment bolt are respectively provided in the threaded through holes. The top surface of the "L"-shaped rod is located in the mounting groove of the top rod. A screw hole plate is provided on the end of the horizontal end. A connecting rod 7 is provided between the "L"-shaped rods of the two supports 4 for fixed connection.

[0024] The rotating mechanism includes an adjusting sleeve 5 and a rotating rod 6. The adjusting sleeve 5 is a hollow cylindrical structure with two openings. Bearings are installed inside the sleeve near the ports. A threaded locking hole is provided on the side wall of the adjusting sleeve 5 between the two bearings, and a locking bolt 8 is provided in the threaded locking hole. There are two adjusting sleeves 5, which are installed opposite each other at the midpoint of the top surface of the two brackets of the mounting frame, with the threaded locking holes facing upwards. The rotating rod 6 is a circular rod with a connecting hole on its body that corresponds to the threaded hole of the connecting plate 2 on the rotating end of the tool holder 1. The two ends of the rotating rod 6 are located in the two adjusting sleeves 5 respectively, and are rotatably connected to the adjusting sleeves 5 through the bearings inside the adjusting sleeves 5. A rotating handle 9 is installed on one end of the rotating rod 6. The rotating handle 9 and the rotating rod 6 are connected by a bevel gearbox.

[0025] The tool holder 1 is connected to the body of the rotating rod 6 via the connecting plate 2 at the rotating end. The threaded holes and connecting holes between the two are aligned and then locked together by bolts.

[0026] Referring to Figures 1-4 The auxiliary support mechanism is provided below the tool holder 1, and comprises a top rod 10 and a bottom rod 11. The top rod 10 is located in the bottom rod 11. A screw hole is formed on the outer circumferential surface below the top surface of the bottom rod 11. A limiting bolt is arranged in the screw hole. The bottom of the bottom rod 11 is connected with the connecting rod 7 on the support 4 through a rotating shaft. The top of the top rod 10 is connected with the bottom surface of the tool holder 1 through a rotating shaft.

[0027] From Figure 2 and Figure 4 It can be seen that the angle measurer 12 is arranged on the support close to the rotating handle 9. The zero line of the angle measurer 12 coincides with the bottom surface when the doctor blade is horizontally arranged.

[0028] In use, the device is installed at the corresponding position of the printing machine through the screw hole plate and the bolt of the support 4. When the doctor blade angle is adjusted, the rotating handle 9 is rotated according to the printing requirement. The rotating handle 9 drives the rotating rod 6, the tool holder 1 and the doctor blade arranged on the tool holder 1 to rotate through the conical gear box. When rotating, the angle measurer 12 is observed in real time. When the required angle is reached, the locking bolt 8 on the adjusting sleeve 5 is tightened to press down and position and lock the rotating rod 6. After the rotating rod 6 is locked to complete the angle positioning, the adjusting knob 13 on the rotating support top plate is rotated to drive the tool holder and the doctor blade to move towards the printing roller to ensure that the doctor blade surface contacts the printing roller. Then, the limiting plate and the "L" type rod of the support are locked by using the adjusting bolt to complete the positioning. At the same time, when the tool holder 1 rotates, the top rod 10 on the bottom surface slides in the bottom rod 11. After the angle positioning is completed, the top rod 10 is locked by using the limiting bolt on the bottom rod 11 to assist in supporting the tool holder 1.

[0029] The above embodiment only exemplarily illustrates the principle and effect of the present application, and is not used to limit the present application. Any person skilled in the art can modify or change the above embodiment without departing from the spirit and scope of the present application. Therefore, all equivalent modifications or changes completed by those skilled in the art without departing from the spirit and technical thought of the present application should be covered by the claims of the present application.

Claims

1. An adjustable doctor blade device for a water-based gravure printing press, comprising a mounting frame, a blade holder (1), a doctor blade (14), and a rotating mechanism, characterized in that: The left and right sides of the blade holder (1) are the rotating end and the scraping end, respectively. Multiple equidistant connecting plates (2) are fixedly installed on the rotating end of the blade holder (1), and an arc-shaped mounting groove is opened on the connecting plate (2). A threaded hole is opened in the mounting groove. A mounting groove for placing the scraping blade is opened on the scraping end. A locking hole with a threaded structure is opened on the blade holder (1) above the mounting groove. A locking knob (3) is provided in the locking hole. The scraping surface of the scraping blade is a straight blade structure and is set in the mounting groove of the blade holder (1). A back blade (15) is provided above the scraping blade (14). The two are locked and limited by the locking knob (3). The scraping surface of the scraping blade (14) extends 3-4mm out of the end of the back blade (15). The mounting bracket consists of two brackets (4) arranged opposite to each other. The bracket (4) is composed of a top plate and an "L"-shaped rod. The bottom surface of the top plate is provided with a mounting groove. The length of the mounting groove is the same as the length of the top surface of the "L"-shaped rod, and the width is 5-8mm wider than the top surface width of the "L"-shaped rod. The side end face and the front end face of the mounting groove away from the tool holder are provided with threaded through holes. An adjustment knob (13) and an adjustment bolt are respectively provided in the threaded through holes. The top surface of the "L"-shaped rod is located in the mounting groove of the top rod. A screw hole plate is provided on the end of the horizontal end. A connecting rod (7) is provided between the "L"-shaped rods of the two brackets (4) for fixed connection. The rotating mechanism includes an adjusting sleeve (5) and a rotating rod (6). The adjusting sleeve (5) is a hollow cylindrical structure with two openings. Bearings are installed inside the sleeve near the port. A threaded locking hole is provided on the side wall of the adjusting sleeve (5) between the two bearings, and a locking bolt (8) is provided in the threaded locking hole. There are two adjusting sleeves (5), which are installed opposite each other at the midpoint of the top surface of the two brackets of the mounting frame, and the threaded locking hole is facing upward. The rotating rod (6) is a circular rod with a connecting hole on its body that corresponds to the threaded hole of the connecting plate (2) on the rotating end of the tool holder (1). The two ends of the rotating rod (6) are located in the two adjusting sleeves (5) respectively, and are rotatably connected to the adjusting sleeves (5) through the bearings inside the adjusting sleeves (5). A rotating handle (9) is installed on one end of the rotating rod (6). The rotating handle (9) and the rotating rod (6) are connected by a bevel gearbox. The tool holder (1) is connected to the body of the rotating rod (6) through the connecting plate (2) at the rotating end. The threaded holes and connecting holes between the two are locked together by bolts.

2. The adjustable squeegee angle squeegee device for a water-tip paper gravure printing press according to claim 1, characterized in that: An auxiliary support mechanism is provided below the tool holder (1).

3. The adjustable squeegee angle squeegee device for a water-tip paper gravure printing press according to claim 2, characterized in that: The auxiliary support mechanism includes a top rod (10) and a bottom rod (11). The top rod (10) is located inside the bottom rod (11). A screw hole is provided on the outer circumferential surface below the top opening of the bottom rod (11). A limiting bolt is provided in the screw hole. The bottom of the bottom rod (11) is connected to the connecting rod (7) on the mounting frame through a rotating shaft. The top of the top rod (10) is connected to the bottom surface of the tool holder (1) through a rotating shaft.

4. An adjustable squeegee angle squeegee device for a water-tip paper gravure printing press according to any one of claims 1-3, characterized in that: An angle measuring device (12) is installed on the top plate of the bracket (4) near the rotating handle (9) of the mounting bracket. The zero line of the angle measuring device (12) coincides with the bottom surface of the doctor blade when it is set horizontally.

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