Anti-shake polyurethane doctor blade of printing machine

Abstract

The utility model discloses an anti-shake polyurethane doctor blade of a printing machine, which comprises a polyurethane blade body, two sides of the polyurethane blade body are provided with clamping plates, the bottoms of the two clamping plates are connected with a bottom plate, the bottom plate is provided with a plurality of springs, the inner sides of the two clamping plates are respectively provided with a clamping strip along the length direction, and a gap is reserved between the two clamping strips. The springs are compressed at the bottoms of the clamping strips, a stud is horizontally arranged on the clamping strip on one side, a through hole allowing the stud to penetrate through is formed in the clamping strip on the other side, the stud extends out of the through hole, and a nut is arranged on the stud. According to the polyurethane doctor blade, the compressed spring is arranged at the bottom of the polyurethane blade body, vibration generated under the action of a printing machine or the external influence can be effectively absorbed, the influence of vibration on the polyurethane doctor blade is reduced, and therefore the printing quality is improved. In addition, the clamping force of the clamping plates on the polyurethane cutter body is enhanced through the reinforcing clamping blocks on the two sides of the polyurethane cutter body, the stability of the polyurethane cutter body in the printing process is ensured, and the printing precision is further improved.

Description

Technical Field

[0001] The utility model relates to an anti-shake polyurethane ink scraper for a printing press. Background Art

[0002] In a printing press, the main function of a doctor blade is to ensure that ink is evenly applied to the printing plate. However, vibrations caused by the operation of the printing press or external factors may have an adverse effect on the performance of the doctor blade. Specifically, vibrations may cause the doctor blade to shake, making its contact with the printing plate unstable, which affects the uniform distribution of ink, resulting in color differences or uneven ink marks on the printed product. In addition, vibrations may accelerate the wear of the doctor blade and shorten its service life. Utility Model Content

[0003] The main purpose of the utility model is to provide an anti-shake polyurethane ink scraper for a printing press to solve the problems raised in the above background technology.

[0004] The purpose of the utility model can be achieved by adopting the following technical solutions:

[0005] A polyurethane ink scraper for a printing press that prevents shaking comprises a polyurethane blade body, with clamping plates arranged on both sides of the polyurethane blade body, a base plate connected to the bottom of the two clamping plates, a plurality of springs arranged on the base plate, clamping strips arranged on the inner sides of the two clamping plates along their length direction, a gap being left between the two clamping strips, the springs being compressed at the bottom of the clamping strips, a stud being arranged horizontally on one side of the clamping strip, a through hole for the stud to pass through being arranged on the other side of the clamping strip, the stud extending out of the through hole and a nut being arranged thereon.

[0006] Preferably, a surrounding plate is provided on the bottom plate around the plurality of springs, a plug-in box is provided on the top of the plurality of springs, the bottom of the plug-in box is plugged into the inner side of the surrounding plate, and the top of the plug-in box abuts against the bottom of the clamping strip.

[0007] Preferably, a groove is provided on the inner side of the clamping plate, and two sides of the enclosure plate abut against the side walls of the groove.

[0008] Preferably, the top surface of the enclosure is provided with an annular groove, and the bottom of the plug-in box is plugged into the annular groove.

[0009] Preferably, a telescopic rod is provided on the inner side of the spring.

[0010] Preferably, nine springs are provided, and the nine springs are evenly distributed on the bottom plate along its length direction.

[0011] Preferably, the studs are arranged in six groups, and each group has two studs.

[0012] Preferably, each group of studs is on the clamping strip on one side and is evenly distributed along its length.

[0013] Preferably, reinforcement clamping blocks are arranged on both sides of the polyurethane blade body on the inner sides of the two clamping plates, and a gap is left between the two reinforcement clamping blocks.

[0014] Preferably, a reinforcing stud is horizontally arranged on the reinforcing clamping block on one side, and a reinforcing through hole for the reinforcing stud to pass through is arranged on the reinforcing clamping block on the other side. The reinforcing stud extends out of the reinforcing through hole and a reinforcing nut is arranged thereon.

[0015] Beneficial technical effects of the utility model:

[0016] The utility model can effectively absorb the vibration generated by the operation of the printing machine or external influences by arranging a compressed spring at the bottom of the polyurethane blade body, reduce the impact of vibration on the polyurethane scraper blade, and thus improve the printing quality. In addition, the reinforced clamping blocks on both sides of the polyurethane blade body enhance the clamping force of the clamping plate on the polyurethane blade body, ensure the stability of the polyurethane blade body during the printing process, and further improve the accuracy and consistency of printing. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of a polyurethane scraper according to an embodiment of the utility model;

[0018] Figure 2 A front structural cross-sectional view of a polyurethane scraper according to an embodiment of the utility model;

[0019] Figure 3 A side structural cross-sectional view of a polyurethane scraper according to an embodiment of the utility model;

[0020] Figure 4 This is a schematic diagram of the splint structure of an embodiment of the utility model.

[0021] In the figure: 1. polyurethane knife body; 2. splint; 3. bottom plate; 4. spring; 5. clamping strip; 6. stud; 7. through hole; 8. nut; 9. enclosure; 10. plug-in box; 11. groove; 12. ring groove; 13. telescopic rod; 14. reinforcement clamping block; 15. reinforcement stud; 16. reinforcement through hole; 17. reinforcement nut. DETAILED DESCRIPTION

[0022] In order to make the technical solution of the present invention more clear and specific to those skilled in the art, the present invention is further described in detail below in conjunction with embodiments and drawings, but the implementation methods of the present invention are not limited thereto.

[0023] like Figure 1-Figure 4As shown, the present embodiment provides an anti-shake polyurethane scraper for a printing machine, comprising a polyurethane blade body 1, with clamping plates 2 arranged on both sides of the polyurethane blade body 1, a bottom plate 3 being connected to the bottom of the two clamping plates 2, a plurality of springs 4 being arranged on the bottom plate 3, clamping strips 5 being arranged on the inner sides of the two clamping plates 2 along their length directions, a gap being left between the two clamping strips 5, the spring 4 being compressed at the bottom of the clamping strip 5, a stud 6 being horizontally arranged on the clamping strip 5 on one side, a through hole 7 for the stud 6 to pass through being arranged on the clamping strip 5 on the other side, the stud 6 extending out of the through hole 7 and a nut 8 being arranged thereon. When assembling, the nut 8 is loosened first, the polyurethane blade body 1 is inserted between the two clamping plates 2, and then the nut 8 is tightened. When in use, it is connected to the printing machine, and the vibration brought by the printing machine will be transmitted from the bottom plate 3, and after reaching the spring 4, most of the vibration will be absorbed by the spring 4, thereby reducing the influence of the vibration on the polyurethane blade body 1.

[0024] In this embodiment, if Figure 2 As shown, a surrounding plate 9 is provided around the multiple springs 4 on the bottom plate 3, and a plug-in box 10 is provided on the top of the multiple springs 4. The bottom of the plug-in box 10 is plugged into the inner side of the surrounding plate 9, and the top of the plug-in box 10 abuts against the bottom of the clamping strip 5, thereby enhancing the rigidity of the entire structure and providing protection for the springs 4. At the same time, the plug-in box 10 can undergo slight deformation together with the springs 4 when the springs 4 absorb vibrations.

[0025] In this embodiment, if Figure 3 As shown, a groove 11 is provided on the inner side of the clamping plate 2, and two sides of the enclosure 9 abut against the side walls of the groove 11. The enclosure 9 is clamped on the inner sides of the two clamping plates 2 through the groove 11, thereby further improving the structural stability.

[0026] In this embodiment, if Figure 3 As shown, the top surface of the enclosure 9 is provided with an annular groove 12 , and the bottom of the plug-in box 10 is plugged into the annular groove 12 . The annular groove 12 provides precise positioning for the plug-in box 10 , thereby ensuring the correct installation and stability of the plug-in box 10 .

[0027] In this embodiment, if Figure 2 As shown, a telescopic rod 13 is provided inside the spring 4 to limit the deformation direction of the spring 4 and improve stability.

[0028] In this embodiment, if Figure 2 As shown, nine springs 4 are provided, and the nine springs 4 are evenly distributed on the bottom plate 3 along its length direction, which can more effectively absorb and buffer vibration.

[0029] In this embodiment, if Figure 1 As shown, six groups of studs 6 are provided, each group of studs 6 is provided with two studs, and each group of studs 6 is evenly distributed on the clamping strip 5 on one side and along its length direction, providing more clamping points to ensure the clamping effect of the clamping plate 2.

[0030] In this embodiment, if Figure 1 As shown, reinforcing clamping blocks 14 are provided on both sides of the polyurethane blade body 1 on the inner sides of the two clamping plates 2, with a gap left between the two reinforcing clamping blocks 14, a reinforcing stud 15 is horizontally provided on the reinforcing clamping block 14 on one side, and a reinforcing through hole 16 for the reinforcing stud 15 to pass through is provided on the reinforcing clamping block 14 on the other side, the reinforcing stud 15 extends out of the reinforcing through hole 16 and is provided with a reinforcing nut 17 thereon, which further improves the clamping effect of the clamping plate 2.

[0031] In summary, in this embodiment, by providing a compressed spring 4 at the bottom of the polyurethane blade body 1, the vibration generated during the operation of the printing machine or under external influences can be effectively absorbed, and the influence of the vibration on the polyurethane blade body 1 can be reduced, thereby improving the printing quality. In addition, the reinforced clamping blocks 14 on both sides of the polyurethane blade body 1 enhance the clamping force of the clamping plate 2 on the polyurethane blade body 1, ensuring the stability of the polyurethane blade body 1 during the printing process, and further improving the accuracy and consistency of printing.

[0032] The above is only a further embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the scope disclosed by the present invention according to the technical solution and concept of the present invention, which fall within the protection scope of the present invention.

Claims

1. An anti-shake polyurethane scraper for a printing press, characterized in that: The invention comprises a polyurethane blade body (1), wherein clamping plates (2) are arranged on both sides of the polyurethane blade body (1), the bottoms of the two clamping plates (2) are connected to a bottom plate (3), a plurality of springs (4) are arranged on the bottom plate (3), the inner sides of the two clamping plates (2) are provided with clamping strips (5) along their length direction, a gap is left between the two clamping strips (5), the springs (4) are compressed at the bottom of the clamping strips (5), a stud (6) is horizontally arranged on one side of the clamping strip (5), and a through hole (7) for the stud (6) to pass through is arranged on the other side of the clamping strip (5), the stud (6) protrudes out of the through hole (7) and a nut (8) is arranged on it.

2. The anti-shake polyurethane scraper for a printing press according to claim 1, characterized in that: A surrounding plate (9) is arranged on the bottom plate (3) around the plurality of springs (4), a plug-in box (10) is arranged on the top of the plurality of springs (4), the bottom of the plug-in box (10) is plugged into the inner side of the surrounding plate (9), and the top of the plug-in box (10) abuts against the bottom of the clamping strip (5).

3. The anti-shake polyurethane scraper for a printing press according to claim 2, characterized in that: A groove (11) is provided on the inner side of the clamping plate (2), and two sides of the enclosure plate (9) abut against the side walls of the groove (11).

4. The anti-shake polyurethane scraper for a printing press according to claim 2, characterized in that: The top surface of the enclosure plate (9) is provided with an annular groove (12), and the bottom of the plug-in box (10) is plugged into the annular groove (12).

5. The anti-shake polyurethane scraper for a printing press according to claim 1, characterized in that: A telescopic rod (13) is provided on the inner side of the spring (4).

6. The anti-shake polyurethane scraper for a printing press according to claim 1, characterized in that: Nine springs (4) are provided, and the nine springs (4) are evenly distributed on the bottom plate (3) along its length direction.

7. The anti-shake polyurethane scraper for a printing press according to claim 1, characterized in that: The studs (6) are provided in six groups, and each group of studs (6) is provided with two studs.

8. The anti-shake polyurethane scraper for a printing press according to claim 7, characterized in that: Each group of studs (6) is on the clamping strip (5) on one side and is evenly distributed along its length.

9. The anti-shake polyurethane scraper for a printing press according to claim 1, characterized in that: Reinforcement clamping blocks (14) are arranged on both sides of the polyurethane blade body (1) on the inner sides of the two clamping plates (2), and a gap is left between the two reinforcement clamping blocks (14).

10. The anti-shake polyurethane scraper for a printing press according to claim 9, characterized in that: A reinforcing stud (15) is horizontally arranged on the reinforcing clamping block (14) on one side, and a reinforcing through hole (16) for the reinforcing stud (15) to pass through is arranged on the reinforcing clamping block (14) on the other side. The reinforcing stud (15) extends out of the reinforcing through hole (16) and a reinforcing nut (17) is arranged thereon.

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