Adjustable ink scraping structure for concave surface printing

Abstract

The utility model discloses an adjustable ink scraping structure for concave printing, which comprises mounting discs, rotating arms are rotatably connected to the outer walls of the left mounting disc and the right mounting disc, locking pieces I for locking the rotating arms on the mounting discs are arranged on the rotating arms, rotating shafts are rotatably connected to the rear sides of the rotating arms, and locking pieces II for locking the rotating arms on the mounting discs are arranged on the rotating shafts. The rotating shafts are provided with second locking pieces used for locking the rotating shafts on the rotating arms, a connecting plate is connected between the left rotating shaft and the right rotating shaft, the front side of the connecting plate is slidably connected with a connecting plate through a guide rod, a clamp is arranged on the front side of the connecting plate, and a scraper and a filling gasket are fixedly clamped in the clamp. According to the ink scraping structure, the distance between the scraper and the printing roller can be conveniently adjusted, the inclination angle of the scraper can be conveniently adjusted, the orientation of the scraper can be conveniently adjusted, flexibility and adaptability are high, diversified printing requirements can be met, redundant ink can be effectively scraped away, it is ensured that the ink is evenly distributed on the printing roller, the ink scraping effect is ensured, and the printing efficiency is improved. And the definition and detail expression of printing can be improved.

Description

Technical Field

[0001] The utility model relates to an ink scraping structure, in particular to an adjustable ink scraping structure for concave printing. Background Art

[0002] Gravure printing (also known as intaglio printing) is a commonly used printing technology that is widely used in packaging, labels, banknotes and high-quality publications. In gravure printing, the wiper structure is a very critical component, which is responsible for scraping off excess ink from the printing plate, leaving only the ink in the grooves for printing.

[0003] Traditional scraper blades typically use a fixed scraper and support structure, which limits printing quality and adaptability to a certain extent. However, with the diversification of market demands and technological development, the requirements for printing quality and efficiency are becoming increasingly higher. Traditional fixed scraper blades have the following problems when responding to different printing needs:

[0004] 1. The distance between the scraper and the printing roller is not easy to adjust: The fixed distance between the scraper and the printing roller is not easy to adjust according to different printing requirements, which affects the printing quality.

[0005] 2. The scraper tilt angle is not easy to adjust: The fixed scraper tilt angle is not easy to adjust and is difficult to adapt to different printing needs. It may lead to poor ink scraping effect and affect the printing clarity and detail performance.

[0006] 3. The scraper direction is not easy to adjust: The fixed scraper direction is not easy to adjust and it is difficult to meet diverse printing needs.

[0007] 4. The scraper is inconvenient to replace: In the traditional scraping structure, the installation and replacement of the scraper is rather cumbersome. Utility Model Content

[0008] The purpose of the utility model is to provide an adjustable ink scraping structure for concave printing, which aims to flexibly adjust the distance between the scraper and the printing roller, the inclination angle of the scraper and the direction of the scraper, thereby improving the printing quality and adaptability and meeting diverse printing needs.

[0009] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an adjustable ink scraping structure for concave printing, comprising a mounting plate, the outer walls of the left and right mounting plates are rotatably connected to a rotating arm, the rotating arm is provided with a locking member 1 for locking it to the mounting plate, the rear side of the rotating arm is rotatably connected to a rotating shaft, the rotating shaft is provided with a locking member 2 for locking it to the rotating arm, a connecting plate is connected between the left and right rotating shafts, the front side of the connecting plate is slidably connected to a connecting plate through a guide rod, a clamp is provided on the front side of the connecting plate, a scraper and a filling gasket are clamped and fixed in the clamp, the filling gasket is located on the lower side of the scraper, the filling gasket is used to support the scraper, a screw is rotatably connected to the connecting plate, and the screw is threadedly connected to the connecting plate.

[0010] Preferably, the clamp includes a clamp and an L-shaped clip, and grooves for accommodating the clamp are opened on the left and right sides of the connecting plate, and the upper and lower clamps are arranged in the grooves of the connecting plate, and the clamp is fixedly connected to the connecting plate by bolts. The upper and lower clamps are fixedly connected by bolts, and the bottom front side of the upper clamp and the top front side of the lower clamp are both slidably connected with L-shaped clips through L-shaped slide grooves, and the bottom front side of the upper L-shaped clip and the top front side of the lower L-shaped clip are both provided with accommodating grooves, the scraper is arranged in the accommodating groove of the upper L-shaped clip, and the filling gasket is arranged in the accommodating groove of the lower L-shaped clip.

[0011] Preferably, the upper portion of the filling gasket is a plane, and the lower portion is an inclined surface with a higher front and a lower back, and the inclined surface of the lower portion of the filling gasket is located outside the lower L-shaped clip.

[0012] Preferably, the locking member includes a screw rod embedded in the front side of the rotating arm, a nut rod is threadedly connected to the screw rod, and the nut rod is located on the outside of the mounting plate. Two arc-shaped sliding grooves are symmetrically provided on the upper part of the mounting plate for the sliding of the screw rod, and the upper parts of the left and right sides of the mounting plate are connected to slotted rubber gaskets aligned with the arc-shaped sliding grooves, and the screw rod is located in the groove of the slotted rubber gasket on the same side as it.

[0013] Preferably, the second locking member includes a second screw connected to the end of the rotating shaft away from the connecting plate, a second nut is threadedly connected to the second screw, and a rubber sleeve is connected to the side of the rotating shaft close to the connecting plate. The rubber sleeve is located between the connecting plate and the rotating arm, and is tightly attached to the connecting plate and the rotating arm.

[0014] Preferably, the front side surface of the lower splint is connected at intervals with support rods for supporting the filling gasket.

[0015] The beneficial effects of the present invention are:

[0016] Rotating the screw can adjust the distance between the scraper and the printing roller, so that the locking part 2 releases the lock of the rotating shaft, and the inclination angle of the scraper can be adjusted. The locking part 1 releases the lock of the rotating arm, and the scraper can be rotated along the printing roller to adjust the direction of the scraper. Therefore, the ink scraping structure can facilitate the adjustment of the distance between the scraper and the printing roller, the inclination angle of the scraper, and the direction of the scraper. It has strong flexibility and adaptability, can meet diverse printing needs, effectively scrape off excess ink, ensure the uniform distribution of ink on the printing roller, ensure the ink scraping effect, help to improve the clarity and detail of printing, and ensure the quality of printed products. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model Figure 1 .

[0018] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model Figure 2 .

[0019] Figure 3 It is a partial three-dimensional structural diagram of the utility model.

[0020] Figure 4 It is a schematic diagram of the three-dimensional structure of the clamp, scraper, filling gasket and support rod of the utility model.

[0021] The marks in the accompanying drawings are: 1-printing roller, 2-mounting plate, 21-annular slide, 22-arc slide, 3-rotating arm, 4-locking piece one, 41-screw one, 42-nut one, 43-slotted rubber gasket, 5-rotating shaft, 6-locking piece two, 61-screw two, 62-nut two, 63-rubber sleeve, 7-connecting plate, 71-guide rod, 8-connecting plate, 9-clamp, 91-clamp, 92-L-shaped clip, 10-scraper, 11-filling gasket, 12-screw, 13-support rod. DETAILED DESCRIPTION

[0022] The present application is described in further detail below in conjunction with the accompanying drawings. It is necessary to point out that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technicians in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0023] See also Figure 1-Figure 3An adjustable scraper structure for concave printing includes a mounting plate 2, an annular chute 21 is provided on the outer wall of the left and right mounting plates 2, a rotating arm 3 is rotatably connected in the annular chute 21, the rotating arm 3 includes a ring and a connecting arm, the ring is rotatably sleeved on the outer wall of the mounting plate 2 and is located in the annular chute 21, the connecting arm is connected to the rear side of the outer wall of the ring, a locking member 4 is provided on the rotating arm 3 for locking it on the mounting plate 2, a rotating shaft 5 is rotatably connected to the rear side of the rotating arm 3, a locking member 6 is provided on the rotating shaft 5 for locking it on the rotating arm 3, the left and right A U-shaped connecting plate 7 is connected between the two rotating shafts 5, and four guide rods 71 ​​are connected to the connecting plate 7 at intervals from left to right. A connecting plate 8 located on the front side of the connecting plate 7 is slidably connected between the four guide rods 71. The connecting plate 8 is U-shaped, and a clamp 9 is provided on the front side of the connecting plate 8. A scraper 10 and a filling gasket 11 are clamped and fixed in the clamp 9. The filling gasket 11 is located on the lower side of the scraper 10. The filling gasket 11 is used to support the scraper 10 to ensure that the scraper 10 remains stable during operation. A screw rod 12 is rotatably connected to the connecting plate 7, and the screw rod 12 is threadedly connected to the connecting plate 8.

[0024] The printing roller 1 is rotatably connected between the two mounting plates 2, and the screw 12 is rotated to adjust the front-back position of the connecting plate 8, so that the clamp 9 can drive the scraper 10 to adjust the front-back position to adjust the distance between the scraper 10 and the printing roller 1, flexibly meeting various printing needs, ensuring that the ink is evenly distributed on the printing roller 1, avoiding too thick or too thin ink layers, and ensuring the quality of the printed product. The locking member 2 6 is unlocked from the rotating shaft 5, so that the connecting plate 7 can swing up and down with the rotating shaft 5 as the rotation center, so that the connecting plate 8 can drive the scraper 10 through the clamp 9, and rotate up and down with the rotating shaft 5 as the rotation center to adjust the inclination angle of the scraper 10. The appropriate inclination angle can ensure that the scraper 10 can better fit the surface of the printing roller 1, effectively scrape off excess ink, ensure the ink scraping effect, help improve the clarity and detail of the print, and ensure the quality of the printed product. After the inclination angle of the scraper 10 is adjusted, the angle of the scraper 10 can be fixed by relocking the rotating shaft 5 with the locking member 2, ensuring that the scraper 10 remains stable during operation to ensure printing quality. By releasing the lock of the rotating arm 3 with the locking member 14, the rotating arm 3 can be made to swing up and down with the mounting plate 2 as the rotation center, thereby enabling the components on the rotating arm 3 to swing up and down with the mounting plate 2 as the rotation center, and then enabling the scraper 10 to rotate along the printing roller 1 to adjust the direction of the scraper 10. By adjusting the direction of the scraper 10, the optimal contact between the scraper 10 and the surface of the printing roller 1 can be ensured, thereby improving printing quality and stability and adapting to different printing requirements. After the direction of the scraper 10 is adjusted, the direction of the scraper 10 can be fixed by relocking the rotating arm 3 with the locking member 14, ensuring that the scraper 10 remains stable during operation to ensure printing quality. This scraping mechanism facilitates adjustment of the distance between the scraper 10 and the printing roller 1, the inclination angle of the scraper 10, and the orientation of the scraper 10. It offers high flexibility and adaptability, meeting diverse printing needs. It effectively scrapes away excess ink, ensuring uniform distribution of ink on the printing roller 1 and ensuring effective scraping, thereby improving print clarity and detail, and ensuring the quality of printed products.

[0025] See also Figure 2-Figure 4The clamp 9 includes a clamping plate 91 and an L-shaped clamping piece 92. The left and right sides of the U-shaped connecting plate 8 are provided with grooves for accommodating the clamping plate 91. The upper and lower clamping plates 91 are arranged in the grooves of the U-shaped connecting plate 8. The clamping plate 91 is fixedly connected to the connecting plate 8 by bolts. The upper and lower clamping plates 91 are fixedly connected by bolts. The bottom front side of the upper clamping plate 91 and the top front side of the lower clamping plate 91 are both slidably connected with the L-shaped clamping piece 92 through the L-shaped slot. The bottom front side of the upper L-shaped clamping piece 92 and the lower L-shaped clamping piece 92 are There is a receiving groove on the top front side of 92, the scraper 10 is set in the receiving groove of the upper L-shaped clip 92, and the filling gasket 11 is set in the receiving groove of the lower L-shaped clip 92. The upper part of the filling gasket 11 is a plane, and the lower part is a slope with a high front and a low back. The slope of the lower part of the filling gasket 11 is located outside the lower L-shaped clip 92. The excess ink scraped from the printing roller 1 by the scraper 10 can be diverted downward through the slope of the lower part of the filling gasket 11 to prevent the ink from entering the fixture 9, thereby reducing ink waste.

[0026] By loosening the bolts on the connecting plate 8 and the clamping plate 91, the lock of the upper and lower clamping plates 91 can be released, and then the L-shaped clamping piece 92 can be pulled out from the clamping plate 91 to the left to remove the scraper 10 for replacement. After the new scraper 10 is placed, the L-shaped clamping piece 92 is reinserted into the clamping plate 91, and then the bolts on the connecting plate 8 and the clamping plate 91 are tightened to lock the upper and lower clamping plates 91 again to lock the upper and lower L-shaped clamping pieces 92. The scraper 10 can be firmly clamped by the cooperation of the L-shaped clamping piece 92 and the filling gasket 11, so that the scraper 10 of this ink scraping structure can be easily loaded and unloaded and replaced.

[0027] See also Figure 2-Figure 3 The locking member 4 includes a screw 41 embedded in the front side of the rotating arm 3, and a nut 42 is threadedly connected to the screw 41. The nut 42 is located on the outside of the mounting plate 2. Two arc-shaped sliding grooves 22 are symmetrically opened on the upper part of the mounting plate 2 for the sliding of the screw 41. The upper parts of the left and right sides of the mounting plate 2 are connected with slotted rubber gaskets 43 aligned with the arc-shaped sliding grooves 22. The screw 41 is located in the groove of the slotted rubber gasket 43 on the same side as it, and the slotted rubber gasket 43 is arc-shaped.

[0028] The nut 42 is rotated so that the nut 42 moves and disengages from the slotted rubber gasket 43, thereby releasing the lock on the rotating arm 3. The nut 42 is reversed so that the nut 42 moves back and presses against the mounting plate 2. The rotating arm 3 can be locked through the cooperation of the nut 42 and the screw 41 to prevent the rotating arm 3 from rotating. The slotted rubber gasket 43 can increase the friction between the nut 42 and the mounting plate 2, thereby locking the rotating arm 3 firmly.

[0029] See 2- Figure 3The locking member 6 includes a screw 61 connected to the end of the rotating shaft 5 away from the connecting plate 7, and a nut 62 is threadedly connected to the screw 61. A rubber sleeve 63 is connected to the side of the rotating shaft 5 close to the connecting plate 7. The rubber sleeve 63 is located between the connecting plate 7 and the rotating arm 3, and is tightly attached to the connecting plate 7 and the rotating arm 3.

[0030] Manually fix the second screw 61 and then rotate the second nut 62 to move the second nut 62 away from the rotating arm 3, thereby releasing the lock on the rotating shaft 5. The rotating shaft 5 can then be rotated to adjust the angle of the scraper 10. Manually fix the second screw 61 and then reverse the second nut 62 to move the second nut 62 back to fit tightly against the rotating arm 3. After the second nut 62 and the rubber sleeve 63 fit tightly against the rotating arm 3, the second nut 62 and the second screw 61 cooperate to lock the rotating shaft 5 and prevent it from rotating.

[0031] Refer to 4 , the front side of the lower splint 91 is connected with support rods 13 at intervals from left to right. The support rods 13 are located on the inner side of the filling gasket 11 to support the filling gasket 11, ensure the position of the filling gasket 11 is stable, and ensure that excess ink is smoothly diverted downward.

[0032] The above-described embodiments merely represent preferred embodiments of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make numerous variations, improvements, and substitutions without departing from the scope of the present invention, all of which fall within the scope of protection of the present invention.

Claims

1. An adjustable scraper structure for gravure printing, characterized in that: The invention comprises a mounting plate (2), wherein the outer walls of the left and right mounting plates (2) are both rotatably connected with a rotating arm (3), the rotating arm (3) is provided with a locking member (4) for locking the rotating arm (3) on the mounting plate (2), the rear side of the rotating arm (3) is rotatably connected with a rotating shaft (5), the rotating shaft (5) is provided with a locking member (6) for locking the rotating arm (3), a connecting plate (7) is connected between the left and right rotating shafts (5), the front side of the connecting plate (7) is slidably connected with a connecting plate (8) through a guide rod (71), the front side of the connecting plate (8) is provided with a clamp (9), a scraper (10) and a filling gasket (11) are clamped and fixed in the clamp (9), the filling gasket (11) is located on the lower side of the scraper (10), and the filling gasket (11) is used to support the scraper (10), a screw rod (12) is rotatably connected to the connecting plate (7), and the screw rod (12) is threadedly connected to the connecting plate (8).

2. The adjustable scraper structure for concave printing according to claim 1, characterized in that: The clamp (9) comprises a clamp (91) and an L-shaped clamp (92), and grooves for accommodating the clamp (91) are provided on both the left and right sides of the connecting plate (8), and the upper and lower clamps (91) are arranged in the grooves of the connecting plate (8), and the clamp (91) is fixedly connected to the connecting plate (8) by bolts. The upper and lower clamps (91) are fixedly connected by bolts, and the bottom front side of the upper clamp (91) and the top front side of the lower clamp (91) are both slidably connected to the L-shaped clamp (92) through the L-shaped slot, and the bottom front side of the upper L-shaped clamp (92) and the top front side of the lower L-shaped clamp (92) are both provided with an accommodating slot, and the scraper (10) is arranged in the accommodating slot of the upper L-shaped clamp (92), and the filling gasket (11) is arranged in the accommodating slot of the lower L-shaped clamp (92).

3. The adjustable scraper structure for concave printing according to claim 2, characterized in that: The upper portion of the filling gasket (11) is a plane, and the lower portion is an inclined surface with a higher front and a lower back. The inclined surface of the lower portion of the filling gasket (11) is located outside the lower L-shaped clip (92).

4. The adjustable scraper structure for concave printing according to claim 3, characterized in that: The locking member (4) includes a screw (41) embedded in the front side of the rotating arm (3), a nut (42) is threadedly connected to the screw (41), and the nut (42) is located on the outside of the mounting plate (2). The upper part of the mounting plate (2) is symmetrically provided with two arc-shaped sliding grooves (22) for the screw (41) to slide. The upper parts of the left and right sides of the mounting plate (2) are connected with slotted rubber gaskets (43) aligned with the arc-shaped sliding grooves (22), and the screw (41) is located in the groove of the slotted rubber gasket (43) on the same side as the screw (41).

5. The adjustable scraper structure for concave printing according to claim 4, characterized in that: The second locking member (6) comprises a second screw rod (61) connected to one end of the rotating shaft (5) away from the connecting plate (7), a second nut (62) being threadedly connected to the second screw rod (61), a rubber sleeve (63) being connected to the side of the rotating shaft (5) close to the connecting plate (7), the rubber sleeve (63) being located between the connecting plate (7) and the rotating arm (3), and being in close contact with the connecting plate (7) and the rotating arm (3).

6. The adjustable scraper structure for concave printing according to claim 5, characterized in that: The front side surface of the lower clamping plate (91) is connected at intervals with a support rod (13) for supporting the filling gasket (11).

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