Ink scraping device for printing roller of printing machine

Abstract

The utility model relates to the technical field of printing machines, and particularly discloses a printing machine printing roller ink scraper which comprises a knife handle, an ink scraping blade and a fixing bolt. The water inlet hole is formed in the inner wall of the cutter handle, and a plurality of communicating holes are formed in the inner wall of the cutter handle and communicate with the water inlet hole; and the flow guide mechanism comprises an inner wall located on the communicating hole, and the flow guide mechanism guides the cleaning liquid entering the communicating hole into the inner wall of the knife handle, and according to the printing roller ink scraping device of the printing machine, a worker can conveniently add the cleaning liquid into the knife handle through the formed water inlet hole; and the cleaning liquid in the water inlet holes is sprayed into all positions in the knife handle through the arranged flow guide mechanism, so that workers can conveniently clean areas, which are difficult to touch, in the knife handle, the cleaning efficiency is improved, and the workload of the workers is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of printing machines, in particular to an ink scraper for a printing roller of a printing machine. Background Art

[0002] A printing press is a machine that prints patterns or text onto objects such as paper, textiles, and metal. It is an important piece of equipment in the printing industry and is widely used in commercial printing, publishing printing, packaging printing, and other fields. Its working principle is to make the text and images to be printed into a printing plate, install it on a printing press, and then apply ink to the areas with text and images on the printing plate manually or by a printing press, and then transfer it directly or indirectly to paper or other substrates, thereby reproducing a printed product identical to the printing plate.

[0003] The ink scraper of a printing press is generally a doctor blade, and its main function is to scrape off excess ink from the surface of the printing roller during each printing process to ensure that the ink is evenly distributed on the printing roller, thereby obtaining high-quality printed products. However, during the scraping process, the blade is in close contact with the surface of the printing roller, resulting in tiny particles, ink residues or other impurities on the surface of the printing roller being scraped up by the blade and entering the gap between the blade handle and the blade as the blade moves. The staff is required to clean the inside of the blade handle regularly to avoid accumulation of impurities. However, for the integrated blade handle, due to the complex internal shape of the blade handle and the presence of difficult-to-reach areas, the staff needs to spend a lot of time cleaning, the cleaning efficiency is low, and the workload of the staff is large. For this reason, we propose a printing roller scraper for a printing press. Utility Model Content

[0004] The purpose of the utility model is to provide an ink scraper for a printing roller of a printing press, so as to solve the problem in the above background technology that the internal shape of the blade handle is complex and there are areas that are difficult to reach, which requires staff to spend a lot of time to clean and has low cleaning efficiency.

[0005] To achieve the above object, the utility model provides the following technical solution: a printing roller scraper for a printing press, comprising a blade handle, a scraper blade, and a fixing bolt; further comprising a water inlet hole formed on the inner wall of the blade handle, a plurality of connecting holes formed on the inner wall of the blade handle, the connecting holes being connected to the water inlet hole;

[0006] The flow guiding mechanism includes a flow guiding mechanism located on the inner wall of the communicating hole, and the flow guiding mechanism guides the cleaning liquid entering the communicating hole into the inner wall of the tool handle.

[0007] Among them, the diversion mechanism includes a diversion tube that is slidably connected to the inner wall of the connecting hole, a diversion hole is opened on the inner wall of the diversion tube, a reset spring is fixedly connected to the bottom of the diversion tube, the reset spring is fixedly connected to the inner wall of the water inlet hole, and a limit piece is provided on the outside of the diversion tube to limit the movement of the diversion tube.

[0008] Among them, the diversion hole is L-shaped.

[0009] The limiting component includes a limiting block fixedly connected to the outer side of the guide tube, and the inner wall of the communicating hole is provided with a limiting groove slidably connected to the limiting block.

[0010] Among them, the limiting groove is divided into a sliding end and a spiral end.

[0011] Among them, a closing part is provided at the entrance of the water inlet hole, and the closing part includes a fixed cylinder fixedly connected to the inner wall of the water inlet hole, a circulation hole is opened on the side wall of the fixed cylinder, a closing plate is slidably connected to the inner wall of the fixed cylinder, a compression spring is fixedly connected to the end of the closing plate, the compression spring is fixedly connected to the inner wall of the fixed cylinder, and an isolation rod is fixedly connected to the end of the closing plate away from the compression spring.

[0012] Among them, a rubber ring is fixedly connected to one end of the guide tube close to the inner part of the knife handle.

[0013] The utility model has at least the following beneficial effects:

[0014] When the present application is in use, the water inlet hole is provided to facilitate staff to add cleaning liquid to the inside of the knife handle, and the cleaning liquid in the water inlet hole is sprayed into various positions inside the knife handle through the provided diversion mechanism, thereby facilitating staff to clean the hard-to-reach areas inside the knife handle, improving cleaning efficiency and reducing staff workload. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is an overall schematic diagram of the utility model;

[0016] Figure 2 This is a side sectional schematic diagram of the water inlet of the utility model;

[0017] Figure 3 for Figure 2 Enlarged schematic diagram of area A in the middle;

[0018] Figure 4 This is a side cross-sectional schematic diagram of the closure member of the utility model;

[0019] Figure 5 This is a side sectional schematic diagram of the guide mechanism of the utility model;

[0020] Figure 6 for Figure 5 Enlarged schematic diagram of area B in the middle;

[0021] Figure 7 This is a side sectional schematic diagram of the limit groove of the utility model;

[0022] Figure 8 This is a side view of the rubber ring of the present invention.

[0023] In the figure: 1. Knife handle; 2. Ink scraping blade; 3. Fixing bolt; 4. Water inlet hole; 5. Connecting hole; 6. Diversion mechanism; 60. Diversion tube; 61. Diversion hole; 62. Return spring; 63. Limiting piece; 64. Limiting block; 65. Limiting groove; 66. Sliding end; 67. Screw end; 7. Closing piece; 70. Fixing tube; 71. Flow hole; 72. Closing plate; 73. Compression spring; 74. Isolation rod; 8. Rubber ring. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] Example 1

[0026] See also Figures 1 to 7 The utility model provides a technical solution: a printing roller scraper of a printing press, comprising a handle 1, a scraper blade 2, and a fixing bolt 3; further comprising a water inlet hole 4 opened on the inner wall of the handle 1, a plurality of connecting holes 5 opened on the inner wall of the handle 1, the connecting holes 5 being connected to the water inlet hole 4; a flow guide mechanism 6, the flow guide mechanism 6 including a portion located on the inner wall of the connecting hole 5, the flow guide mechanism 6 directing the cleaning liquid entering the connecting hole 5 into the inner wall of the handle 1;

[0027] When cleaning the inside of the knife handle 1, loosen the fixing bolt 3 to release the fixation of the ink scraping blade 2, and then take out the ink scraping blade 2 for cleaning. When cleaning the inside of the knife handle 1, the staff injects the cleaning liquid into the water inlet hole 4, and the cleaning liquid in the water inlet hole 4 enters the guide mechanism 6 through the water inlet hole 4. The cleaning liquid in the water inlet hole 4 is sprayed into various positions inside the knife handle 1 through the provided guide mechanism 6, and the staff uses an air gun to blow the inside of the knife handle 1 and flush the inside of the knife handle 1 with the cleaning liquid, so as to facilitate the staff to clean the hard-to-reach areas inside the knife handle 1, improve the cleaning efficiency, and reduce the workload of the staff.

[0028] The flow guide mechanism 6 includes a flow guide cylinder 60 that is slidably connected to the inner wall of the connecting hole 5. The inner wall of the flow guide cylinder 60 is provided with a flow guide hole 61. The flow guide hole 61 is L-shaped. A return spring 62 is fixedly connected to the bottom of the flow guide cylinder 60. The return spring 62 is fixedly connected to the inner wall of the water inlet hole 4. A limit member 63 is provided on the outer side of the flow guide cylinder 60 to limit the movement of the flow guide cylinder 60.

[0029] After the cleaning liquid is injected into the water inlet hole 4, the flowing cleaning liquid flows into the connecting hole 5, and the cleaning liquid in the connecting hole 5 enters the guide hole 61. Since the guide hole 61 is L-shaped, the cleaning liquid will impact the top of the guide cylinder 60, pushing the guide cylinder 60 to slide along the inner wall of the connecting hole 5. The limiter 63 controls the guide cylinder 60 to rotate when moving upward, so that the cleaning liquid in the guide hole 61 is sprayed into the inside of the knife handle 1 in a rotational manner to cooperate with the flushing of impurities inside the knife handle 1.

[0030] The limiting member 63 includes a limiting block 64 fixedly connected to the outer side of the guide tube 60. The inner wall of the communication hole 5 is provided with a limiting groove 65 slidably connected to the limiting block 64. The limiting groove 65 is divided into a sliding end 66 and a spiral end 67.

[0031] When the cleaning liquid pushes the guide tube 60 to move upward, the guide tube 60 drives the limit block 64 to move upward along the sliding end 66 of the limit groove 65. When the outlet of the guide hole 61 passes over the connecting hole 5, the limit block 64 moves to the spiral end 67 of the limit groove 65. As the guide tube 60 continues to move upward, the guide tube 60 moves upward in a spiral manner, so that the guide hole 61 also rotates in a spiral manner, spraying the cleaning liquid to various positions inside the knife handle 1, making it convenient to clean the hard-to-reach areas inside the knife handle 1.

[0032] A closing member 7 is provided at the entrance of the water inlet hole 4. The closing member 7 includes a fixed cylinder 70 fixedly connected to the inner wall of the water inlet hole 4. A flow hole 71 is formed in the side wall of the fixed cylinder 70. A closing plate 72 is slidably connected to the inner wall of the fixed cylinder 70. A compression spring 73 is fixedly connected to the end of the closing plate 72. The compression spring 73 is fixedly connected to the inner wall of the fixed cylinder 70. An isolation rod 74 is fixedly connected to the end of the closing plate 72 away from the compression spring 73.

[0033] When cleaning the inside of the tool handle 1, the worker inserts the pipe for outputting the cleaning liquid into the fixed cylinder 70. The pipe pushes the isolation rod 74, and the isolation rod 74 drives the closing plate 72 to move, preventing the closing plate 72 from blocking the pipe for outputting the cleaning liquid. The cleaning liquid can be discharged from the gap between the pipe and the closing plate 72. As the closing plate 72 passes through the flow hole 71 on the inner wall of the fixed cylinder 70, the cleaning liquid between the pipe and the closing plate 72 enters the water inlet 4 through the flow hole 71;

[0034] When there is no need to clean the inside of the knife handle 1 , the compression spring 73 pushes the closing plate 72 to block the fixed cylinder 70 , thereby preventing foreign matter from clogging the flow hole 71 of the fixed cylinder 70 .

[0035] Example 2

[0036] like Figure 8In the second embodiment, other structures remain unchanged. The difference from the first embodiment is that a rubber ring 8 is fixedly connected to one end of the guide tube 60 close to the inside of the shank 1. When the guide tube 60 enters the communicating hole 5, the rubber ring 8 on the surface of the guide tube 60 is also brought into the communicating hole 5. The rubber ring 8 fills the gap between the guide tube 60 and the communicating hole 5, thereby preventing impurities that enter the shank 1 from entering the communicating hole 5 during use.

[0037] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0038] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A printing roller scraper for a printing press, comprising: A knife handle (1), an ink scraping blade (2) and a fixing bolt (3); The invention is characterized in that: it also comprises a water inlet hole (4) provided on the inner wall of the knife handle (1); the inner wall of the knife handle (1) is provided with a plurality of connecting holes (5); the connecting holes (5) are connected with the water inlet hole (4); A flow guiding mechanism (6) is provided, wherein the flow guiding mechanism (6) is located on the inner wall of the connecting hole (5), and the flow guiding mechanism (6) guides the cleaning liquid entering the connecting hole (5) into the inner wall of the knife handle (1).

2. The ink scraper for a printing roller of a printing press according to claim 1, characterized in that: The flow guide mechanism (6) comprises a flow guide tube (60) slidably connected to the inner wall of the connecting hole (5); a flow guide hole (61) is formed on the inner wall of the flow guide tube (60); a reset spring (62) is fixedly connected to the bottom of the flow guide tube (60); the reset spring (62) is fixedly connected to the inner wall of the water inlet hole (4); and a limiter (63) for limiting the movement of the flow guide tube (60) is provided on the outer side of the flow guide tube (60).

3. The ink scraper for a printing roller of a printing press according to claim 2, characterized in that: The guide hole (61) is L-shaped.

4. The ink scraper for a printing roller of a printing press according to claim 2, characterized in that: The limiting member (63) comprises a limiting block (64) fixedly connected to the outside of the guide tube (60), and the inner wall of the communicating hole (5) is provided with a limiting groove (65) slidably connected to the limiting block (64).

5. The ink scraper for a printing roller of a printing press according to claim 4, characterized in that: The limiting groove (65) is divided into a sliding end (66) and a spiral end (67).

6. The ink scraper for a printing roller of a printing press according to claim 1, characterized in that: A closing member (7) is provided at the entrance of the water inlet hole (4), and the closing member (7) comprises a fixed cylinder (70) fixedly connected to the inner wall of the water inlet hole (4), a flow hole (71) is provided on the side wall of the fixed cylinder (70), a closing plate (72) is slidably connected to the inner wall of the fixed cylinder (70), a compression spring (73) is fixedly connected to the end of the closing plate (72), the compression spring (73) is fixedly connected to the inner wall of the fixed cylinder (70), and an isolation rod (74) is fixedly connected to one end of the closing plate (72) away from the compression spring (73).

7. The ink scraper for a printing roller of a printing press according to claim 2, characterized in that: One end of the guide tube (60) close to the inside of the knife handle (1) is fixedly connected to a rubber ring (8).

Images