CN212860763U - Printing cylinder - Google Patents

Abstract

The utility model discloses a printing cylinder, including the back shaft, the back shaft overcoat is equipped with outer barrel, and the centre of back shaft is hollow structure to wear to be equipped with the movable rod in the cavity in the middle of the back shaft, the equidistance distributes on the movable rod has a plurality of round platform shape structures, and the one end of movable rod rotates and is connected with the one end of adjusting the pole, the one end of back shaft is worn out to the other end of adjusting the pole, and adjusts the pole and be threaded connection with the back shaft, the through-hole has been seted up on the lateral wall of back shaft, and has run through the locating piece in this through-hole, and one side that the locating piece is close to the back shaft inner chamber is the slope structure, and the. This printing cylinder adopts the structural design of combination such as outer barrel and back shaft for the surface of this cylinder can only change outside outer barrel when taking place the concave damage, and need not to change whole cylinder is whole, and the cost is littleer, and it is very convenient to change.

Description

Printing cylinder

Technical Field

The utility model relates to a lithography apparatus technical field specifically is a printing cylinder.

Background

Printing is a technique of transferring ink to the surface of paper, textiles, plastics, leather, PVC, PC, or other materials by plate making, inking, and pressing original documents such as characters, pictures, photographs, and forgery prevention, and copying the contents of the original documents in bulk. Printing is the process of transferring the approved printing plate to the printing stock by printing machine and special ink.

The surface of the printing roller must be ensured to be flat and smooth, the printing roller cannot be used once the printing roller has concave damage, and the traditional printing roller needs to be replaced wholly after being damaged, so that the printing roller is very expensive and is not enough.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a printing cylinder to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a printing cylinder comprises a supporting shaft, an outer cylinder body is sleeved outside the supporting shaft, the middle of the supporting shaft is of a hollow structure, and a movable rod is arranged in the cavity in the middle of the supporting shaft in a penetrating way, a plurality of truncated cone-shaped structures are distributed on the movable rod at equal intervals, one end of the movable rod is rotatably connected with one end of the adjusting rod, the other end of the adjusting rod penetrates out of one end of the supporting shaft, the adjusting rod is in threaded connection with the supporting shaft, a through hole is formed in the side wall of the supporting shaft, a positioning block penetrates through the through hole, one side of the positioning block, which is close to the inner cavity of the supporting shaft, is an inclined structure, and the inclined structure is matched with the circular truncated cone-shaped structure of the movable rod, and one side of the positioning block, which protrudes out of the outer wall of the supporting shaft, is pressed against the inner wall of the outer cylinder body, two ends of the supporting shaft are respectively sleeved with a limiting ring and a locking ring, the limiting ring is fixedly connected with the supporting shaft, and the locking ring is in threaded connection with the supporting shaft.

Preferably, the connection mode between the limiting ring and the supporting shaft is welding.

Preferably, a strip-shaped groove is formed in the inner wall of the outer barrel, and one side of the positioning block protruding out of the outer wall of the supporting shaft is matched with the structure of the strip-shaped groove.

Preferably, the bar groove on the outer barrel inner wall encircles the equidistance and distributes and has a plurality ofly, and the quantity of locating piece and the quantity phase-match of bar groove.

Preferably, one end of the adjusting rod, which is close to the movable rod, is provided with a T-shaped bulge, one end of the movable rod is provided with a T-shaped groove, and the T-shaped groove is matched with the T-shaped bulge in structure.

Preferably, the outer wall of the locking ring is hexagonal.

Compared with the prior art, the beneficial effects of the utility model are that: this printing cylinder adopts the structural design of combination such as outer barrel and back shaft for the surface of this cylinder can only change outside outer barrel when taking place the concave damage, and need not to change whole cylinder is whole, and the cost is littleer, and it is very convenient to change.

Drawings

Fig. 1 is a front view of an internal structure of a printing cylinder according to the present invention;

FIG. 2 is a cross-sectional view of a movable rod and an outer cylinder of a printing cylinder according to the present invention;

fig. 3 is a front view of a printing cylinder locking ring of the present invention.

In the figure: 1. the device comprises a limiting ring, 2, an outer cylinder, 3, a strip-shaped groove, 4, a positioning block, 5, a movable rod, 6, a support shaft, 7, a locking ring, 8 and an adjusting rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a printing cylinder comprises a supporting shaft 6, an outer cylinder body 2 is sleeved outside the supporting shaft 6, the outer cylinder body 2 is in sliding connection with the supporting shaft 6, the outer cylinder body 2 can be detached, the middle of the supporting shaft 6 is of a hollow structure, a movable rod 5 penetrates through a cavity in the middle of the supporting shaft 6, the movable rod 5 is in sliding connection with the supporting shaft 6, a plurality of truncated cone-shaped structures are distributed on the movable rod 5 at equal intervals, one end of the movable rod 5 is rotatably connected with one end of an adjusting rod 8, a T-shaped bulge is arranged at one end, close to the movable rod 5, of the adjusting rod 8, a T-shaped groove is formed at one end of the movable rod 5, the T-shaped groove is matched with the T-shaped bulge, the structure enables the movable rod 5 to be rotatably connected with the adjusting rod 8 stably without being separated from the adjusting rod 8, and the other end of the adjusting rod 8 penetrates out, the adjusting rod 8 is in threaded connection with the supporting shaft 6, the adjusting rod 8 can move transversely by rotating, the adjusting rod can be kept stable at any time after rotating due to the support of threads, a through hole is formed in the side wall of the supporting shaft 6, a positioning block 4 penetrates through the through hole, the positioning block 4 is in sliding connection with the supporting shaft 6, one side, close to the inner cavity of the supporting shaft 6, of the positioning block 4 is of an inclined structure, the inclined structure is matched with the circular truncated cone-shaped structure of the movable rod 5, the linear displacement of the movable rod 5 can play a role in extruding and pushing the positioning block 4, one side, protruding out of the outer wall of the supporting shaft 6, of the positioning block 4 abuts against the inner wall of the outer barrel 2, the outer barrel 2 can be kept stable by utilizing the jacking pressure of the positioning block 4 against the inner wall of the outer barrel 2, the two ends of the supporting shaft 6 are respectively sleeved with a limiting, the connection mode between the limiting ring 1 and the supporting shaft 6 is welding, the connection mode is more stable, the locking ring 7 and the supporting shaft 6 are in threaded connection, the outer wall of the locking ring 7 is hexagonal, the structure is matched with tools such as a wrench and the like, an operator can conveniently control the locking ring 7 to rotate by using the tools, the limiting ring 1 is matched with the locking ring 7, the outer barrel 2 can be clamped and fixed from two ends of the outer barrel 2, the inner wall of the outer barrel 2 is provided with a strip-shaped groove 3, one side of the positioning block 4, protruding out of the outer wall of the supporting shaft 6, is matched with the structure of the strip-shaped groove 3, the outer barrel 2 cannot rotate and is more stable through mutual limitation between the strip-shaped groove 3 and the positioning block 4, the strip-shaped grooves 3 on the inner wall of the outer barrel 2 are distributed in a plurality in an encircling equidistance manner, the number, and thus more stable.

The working principle is as follows: when using this printing cylinder, whether the device has the condition that the part is damaged or connect infirm earlier the inspection, use after the inspection is errorless, the device mainly comprises outer barrel 2 and back shaft 6 combination, when the concave damage appears in the external surface, the operator can dismantle outer barrel 2 alone, the operating procedure is: it loosens to twist locking ring 7 earlier, make the centre gripping effort at outer barrel 2 both ends get rid of, then rotation regulation pole 8, adjust pole 8 can lateral displacement through the rotation, then play the pulling effect to movable rod 5, the round platform shape structure in the middle of the movable rod 5 is putd aside from between locating piece 4, make locating piece 4 lose and support the extrusion effect, thereby unable roof pressure is on the inner wall of outer barrel 2, let the inner wall department of outer barrel 2 lose fixed effect, then alright with outer barrel 2 directly from the back shaft 6 slip take off, this structure makes the device only need change outer barrel 2 of outside can, and need not to change whole cylinder is whole, the cost is littleer, and it is very convenient to change, this is exactly this printing cylinder's theory of operation.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims (6)

1. A printing cylinder comprising a support shaft (6), characterized in that: the outer cylinder body (2) is sleeved outside the supporting shaft (6), the middle of the supporting shaft (6) is of a hollow structure, a movable rod (5) penetrates through a cavity in the middle of the supporting shaft (6), a plurality of truncated cone-shaped structures are distributed on the movable rod (5) at equal intervals, one end of the movable rod (5) is rotatably connected with one end of an adjusting rod (8), the other end of the adjusting rod (8) penetrates out of one end of the supporting shaft (6), the adjusting rod (8) is in threaded connection with the supporting shaft (6), a through hole is formed in the side wall of the supporting shaft (6), a positioning block (4) penetrates through the through hole, one side, close to the inner cavity of the supporting shaft (6), of the positioning block (4) is of an inclined structure, the inclined structure is matched with the truncated cone-shaped structures of the movable rod (5), and one side, protruding out of the outer wall of the supporting shaft (6), of the positioning block (4, the two ends of the supporting shaft (6) are respectively sleeved with a limiting ring (1) and a locking ring (7), the limiting ring (1) is fixedly connected with the supporting shaft (6), and the locking ring (7) is in threaded connection with the supporting shaft (6).

2. A print cylinder according to claim 1, wherein: the connection mode between the limiting ring (1) and the supporting shaft (6) is welding.

3. A print cylinder according to claim 1, wherein: a strip-shaped groove (3) is formed in the inner wall of the outer barrel body (2), and one side, protruding out of the outer wall of the supporting shaft (6), of the positioning block (4) is matched with the structure of the strip-shaped groove (3).

4. A print cylinder according to claim 3, wherein: the strip-shaped groove (3) on the inner wall of the outer barrel body (2) is distributed with a plurality of surrounding equidistance, and the quantity of the positioning blocks (4) is matched with the quantity of the strip-shaped groove (3).

5. A print cylinder according to claim 1, wherein: the adjusting rod (8) is provided with a T-shaped bulge at one end close to the movable rod (5), a T-shaped groove is formed at one end of the movable rod (5), and the T-shaped groove is matched with the T-shaped bulge.

6. A print cylinder according to claim 1, wherein: the outer wall of the locking ring (7) is hexagonal.

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