Printing roller for printing equipment

Abstract

The utility model discloses a printing roller for printing equipment, which comprises a roller, a rotating rod is rotatably connected to the middle of the inside of the roller, a gear located inside the roller is fixedly mounted on the rotating rod, a threaded rod located on one side of the gear is fixedly mounted inside the roller, racks are meshed with the front side and the rear side of the gear, and the rack is fixedly mounted on the rotating rod. A telescopic shaft is fixedly installed at the tail end of one rack, a follow-up shaft is fixedly installed at the tail end of the other rack, the telescopic shaft is slidably connected with one end of a roller in a penetrating mode, a threaded sleeve is rotationally connected into the tail end of the telescopic shaft, and a threaded rod and the other end of the telescopic shaft are arranged in a penetrating mode; and the other end of the threaded rod is in threaded connection with the interior of the threaded sleeve. The rack pulls the follow-up shaft to contract towards the interior of the roller, so that the telescopic shaft is separated from the support of the roller, the roller is convenient to detach, the whole roller does not need to be replaced when the roller is overhauled and replaced, and only the damaged roller needs to be replaced.

Description

Technical Field

[0001] The utility model relates to the technical field of printing rollers, in particular to a printing roller for printing equipment. Background Art

[0002] Printing is a process of transferring graphic information from an original onto a substrate using a printing plate or other means. It can also be understood as a copying process that uses an analog or digital image carrier to transfer a colorant or pigment onto a substrate.

[0003] The printing rollers used in traditional printing equipment are inconvenient to install and disassemble during use, which makes it inconvenient for maintenance personnel to inspect and replace them. At the same time, the surface friction of the printing rollers caused by long-term use easily heats up, affecting the printing effect. The printing rollers can be used for a short time, making them inconvenient to promote and use.

[0004] To this end, we propose a printing roller for a printing device. Utility Model Content

[0005] The purpose of the utility model is to provide a printing roller for printing equipment to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a printing roller for printing equipment, comprising a roller, the middle part of the roller is rotatably connected to a rotating rod, the rotating rod is fixedly installed with a gear located inside the roller, a threaded rod located on one side of the gear is fixedly installed inside the roller, the front and rear sides of the gear are meshed with racks, one end of the rack is fixedly installed with a telescopic shaft, and the other end of the rack is fixedly installed with a follower shaft, the telescopic shaft is slidably connected with one end of the roller, the internal rotation of the end of the telescopic shaft is connected with a threaded sleeve, the threaded rod and the other end of the telescopic shaft are penetrated, the other end of the threaded rod is threadedly connected with the internal thread of the threaded sleeve, a guide slide rod located on the other side of the gear is fixedly installed inside the roller, the other end of the guide slide rod is slidably connected with the middle part of the follower shaft, and the end of the threaded sleeve is provided with a hexagonal hole.

[0007] Optionally, the two racks are symmetrically arranged with the center of the transmission rod as the center, one side of the rack is in sliding contact with the inner wall of the roller, and the side of the rack slidingly connected to the roller is provided with a dovetail groove slidingly connected to the inner wall of the roller.

[0008] Optionally, a spring is sleeved on the outer circumference of the threaded rod and the guide slide rod, one end of the spring sleeved on the threaded rod is in tight contact with the telescopic shaft, and one end of the spring sleeved on the guide slide rod is in tight contact with the follower rod, and a guide groove is provided inside the follower shaft and is slidably connected to the guide slide rod.

[0009] Optionally, one end of the threaded sleeve is flush with the end of the telescopic shaft, and the hexagonal hole is provided at the end of the threaded sleeve that is flush with the telescopic shaft.

[0010] Optionally, the outer circumferences of the telescopic shaft and the follower shaft are provided with limiting sliding grooves, and both sides of the interior of the roller are integrally connected with limiting convex strips, and the limiting convex strips are slidably connected to the interior of the limiting sliding grooves.

[0011] Optionally, a printing layer is provided on the outer peripheral surface of the roller.

[0012] Optionally, the inner cross-section of the roller is square, and circular through grooves communicating with the interior of the roller are provided at both ends of the roller, and the telescopic shaft and the follower shaft are respectively slidably connected with the circular through grooves of the roller.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] The printing roller of the printing device is provided with a rotating rod and a threaded sleeve. When the roller needs to be replaced, the threaded sleeve is rotated by a hexagonal wrench, and the threaded sleeve moves along the thread, thereby driving the telescopic shaft to retract into the roller. At the same time, the rack drives the gear to rotate, thereby moving another rack meshing with the gear, so that the rack pulls the follower shaft to retract into the roller, thereby separating the telescopic shaft from the roller bracket, making it convenient to disassemble the roller, so that when the roller needs to be repaired and replaced, there is no need to replace the entire roller, and only the damaged one needs to be replaced. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of a printing roller for printing equipment of the present invention;

[0016] Figure 2 This is a schematic structural diagram of a printing roller for printing equipment according to the present invention;

[0017] Figure 3 This is a schematic structural diagram of a telescopic shaft of a printing roller for printing equipment according to the present invention;

[0018] Figure 4 The utility model is a schematic structural diagram of a follower shaft of a printing roller used in printing equipment.

[0019] In the figure: 1. Roller; 2. Printing layer; 3. Rotating rod; 4. Gear; 5. Rack; 6. Telescopic shaft; 7. Threaded rod; 8. Threaded sleeve; 9. Hexagonal socket; 10. Guide slide rod; 11. Follower shaft; 12. Guide slide groove; 13. Spring; 14. Limiting ridge; 15. Limiting slide groove; 16. Dovetail groove. DETAILED DESCRIPTION

[0020] 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.

[0021] See also Figures 1 to 4 The utility model provides a printing roller for a printing device, including a roller 1, a rotating rod 3 is rotatably connected to the middle part of the roller 1, and the rotating rod 3 is fixedly installed with a gear 4 located inside the roller 1, and a threaded rod 7 is fixedly installed inside the roller 1 on one side of the gear 4, and racks 5 are meshed with the front and rear sides of the gear 4. A telescopic shaft 6 is fixedly installed at the end of one rack 5, and a follower shaft 11 is fixedly installed at the end of the other rack 5. The telescopic shaft 6 is slidably connected with one end of the roller 1, and a threaded sleeve 8 is rotatably connected to the end of the telescopic shaft 6. The threaded rod 7 is penetrated by the other end of the telescopic shaft 6, and the other end of the threaded rod 7 is threadedly connected to the inside of the threaded sleeve 8. A guide slide bar 10 is fixedly installed inside the roller 1 on the other side of the gear 4, and the other end of the guide slide bar 10 is slidably connected with the middle part of the follower shaft 11, and an inner hexagonal hole 9 is provided at the end of the threaded sleeve 8.

[0022] The two racks 5 are symmetrically arranged with the center of the circle of the transmission rod as the center of the circle. One side of the rack 5 is in sliding contact with the inner wall of the roller 1. A dovetail groove 16 is provided on the side where the rack 5 is slidably connected to the inner wall of the roller 1. A spring 13 is sleeved on the outer circumference of the threaded rod 7 and the guide slide 10. One end of the spring 13 sleeved on the threaded rod 7 is in tight contact with the telescopic shaft 6. One end of the spring 13 sleeved on the guide slide 10 is in tight contact with the follower rod. A guide slide 12 is provided inside the follower shaft 11 for sliding connection with the guide slide 10. One end of the threaded sleeve 8 is flush with the end of the telescopic shaft 6. The hexagonal hole 9 is provided at one end of the threaded sleeve 8 flush with the telescopic shaft 6. A limiting slide 15 is provided on the outer circumference of the telescopic shaft 6 and the follower shaft 11. The two sides of the interior of the roller 1 are integrally connected with the limiting ridges 14. The limiting ridges 14 are in tight contact with the limiting slide 1 5 is internally slidably connected, the outer circumference of the roller 1 is provided with a printing layer 2, the internal cross-section of the roller 1 is square, and circular through grooves communicating with the interior of the roller 1 are provided at both ends of the roller 1, the telescopic shaft 6 and the follower shaft 11 are respectively slidably connected with the circular through grooves of the roller 1, and a rotating rod 3 and a threaded sleeve 8 are provided. When the roller 1 needs to be replaced, the threaded sleeve 8 is rotated by a hexagonal wrench, and the threaded sleeve 8 moves along the thread, thereby driving the telescopic shaft 6 to retract into the interior of the roller 1, and at the same time, the gear 4 is driven to rotate by the rack 5, thereby moving another rack 5 engaged with the gear 4, so that the rack 5 pulls the follower shaft 11 to retract toward the interior of the roller 1, thereby separating the telescopic shaft 6 from the bracket of the roller 1, making it convenient to disassemble the roller 1, so that the roller 1 does not need to be replaced as a whole when it is inspected and replaced, and only the damaged one needs to be replaced.

[0023] Working principle:

[0024] When the roller 1 needs to be replaced, the threaded sleeve 8 is rotated with a hexagonal wrench, and the threaded sleeve 8 moves along the thread, thereby driving the telescopic shaft 6 to retract into the roller 1. At the same time, the rack 5 drives the gear 4 to rotate, thereby moving the other rack 5 engaged with the gear 4, so that the rack 5 pulls the follower shaft 11 to retract into the roller 1, thereby separating the telescopic shaft 6 from the bracket of the roller 1, making it convenient to disassemble the roller 1, so that the roller 1 does not need to be replaced as a whole when it is inspected and replaced, and only the damaged part needs to be replaced.

[0025] 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 for a printing device, comprising a roller (1), characterized in that: The middle part of the roller (1) is rotatably connected to a rotating rod (3), the rotating rod (3) is fixedly mounted with a gear (4) located inside the roller (1), the roller (1) is fixedly mounted with a threaded rod (7) located on one side of the gear (4), the front and rear sides of the gear (4) are meshed with racks (5), one end of the rack (5) is fixedly mounted with a telescopic shaft (6), the other end of the rack (5) is fixedly mounted with a follower shaft (11), the telescopic shaft (6) is connected to one end of the roller (1) The end of the telescopic shaft (6) is connected to a threaded sleeve (8) for internal rotation, the threaded rod (7) and the other end of the telescopic shaft (6) are arranged to pass through, and the other end of the threaded rod (7) is connected to the internal thread of the threaded sleeve (8). A guide slide rod (10) located on the other side of the gear (4) is fixedly installed inside the roller (1), and the other end of the guide slide rod (10) is connected to the middle of the follower shaft (11) for sliding penetration, and the end of the threaded sleeve (8) is provided with a hexagonal hole (9).

2. A printing roller for a printing device according to claim 1, characterized in that: The two racks (5) are symmetrically arranged with the center of the transmission rod as the center of the circle, one side of the rack (5) is in sliding contact with the inner wall of the roller (1), and the side of the rack (5) that is slidably connected to the roller (1) is provided with a dovetail groove (16) that is slidably connected to the inner wall of the roller (1).

3. The printing roller for printing equipment according to claim 1, characterized in that: The outer circumferences of the threaded rod (7) and the guide slide rod (10) are sleeved with a spring (13), one end of the spring (13) sleeved on the threaded rod (7) is in close contact with the telescopic shaft (6), and one end of the spring (13) sleeved on the guide slide rod (10) is in close contact with the follower rod, and the interior of the follower shaft (11) is provided with a guide slot (12) that is slidably connected to the guide slide rod (10).

4. The printing roller for printing equipment according to claim 1, characterized in that: One end of the threaded sleeve (8) is flush with the end of the telescopic shaft (6), and the hexagonal hole (9) is provided at the end of the threaded sleeve (8) that is flush with the telescopic shaft (6).

5. The printing roller for printing equipment according to claim 1, characterized in that: The outer circumferences of the telescopic shaft (6) and the follower shaft (11) are provided with limiting sliding grooves (15), and both sides of the interior of the roller (1) are integrally connected with limiting convex strips (14), and the limiting convex strips (14) are slidably connected to the interior of the limiting sliding grooves (15).

6. The printing roller for printing equipment according to claim 1, characterized in that: The outer peripheral surface of the roller (1) is provided with a printing layer (2).

7. The printing roller for printing equipment according to claim 1, characterized in that: The inner cross section of the roller (1) is square, and circular through grooves communicating with the interior of the roller (1) are provided at both ends of the roller (1), and the telescopic shaft (6) and the follower shaft (11) are respectively connected to the circular through grooves of the roller (1) in a sliding manner.

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