Rapid plate changing printing cylinder

Abstract

The utility model discloses a rapid plate changing printing cylinder which comprises a plate cylinder and two grooves symmetrically formed in a rack, inserting grooves are formed in one sides of the adjacent inner walls of the two grooves, rotating shafts are fixedly connected to the two side portions of the plate cylinder, one end of each rotating shaft is rotationally connected with a rotating seat, and the other end of each rotating seat is fixedly connected with the corresponding inserting groove. An empty groove is formed in the rotating seat; according to the rapid plate changing printing cylinder, the rotating seat is arranged on the rotating shaft of the plate cylinder, and the pushing block and the inserting block are arranged in the rotating seat, so that a worker can press the pushing block while taking and placing the plate cylinder on the rack, and the protruding block can drive the inserting block to move into the empty groove under the extrusion effect of the pushing block; after the push block is loosened, the insertion block can be inserted into the insertion groove under the action of the tensioning force of the spring, so that the plate cylinder can be conveniently and quickly replaced on the rack; through the arrangement, the replacement time of the plate cylinder is effectively shortened, and the use cost of the printing equipment is also reduced.

Description

Technical Field

[0001] The utility model relates to the field of printing equipment, in particular to a fast-plate-changing printing roller. Background Art

[0002] As is known to all, since flexographic printing presses usually use fluid ink with strong fluidity, and the ink is transferred to the substrate through the action of the ink fountain rubber roller, the anilox transfer roller and the pressure roller, and finally the printing operation is completed after drying treatment; since the flexographic printing press needs to replace a new plate cylinder when changing the printed product, and the traditional plate cylinder consumes a long time to replace, in order to solve this problem, the prior art uses a hydraulic cylinder to drive the plug column in and out of the socket to improve the replacement efficiency; the patent with the publication number CN212499479U published by the China Patent Network discloses a printing press for quickly changing the plate cylinder, and the edge of the connecting shaft is connected to a rotating seat at the inner edge end of the mounting side plate The connecting shaft is embedded in the rotating seat, and an embedded socket is opened in the middle of the inner side of the rotating seat. The utility model can squeeze and lock the position of the rotating seat through the connection between the plug column and the embedded socket during actual application through the rotating seat, bearing seat, embedded socket, cross limit groove, hydraulic cylinder, movable rod, plug column and cross limit block, thereby ensuring the stability of the rotating seat during application. At the same time, the movable rod is used to drive the plug column to move out of the embedded socket to quickly release the restriction of the rotating seat, which is convenient for people to quickly disassemble and replace the connecting shaft and the printing plate cylinder inside the rotating seat. The operation is convenient, replacing the traditional manual disassembly and replacement method, and improving the working efficiency and economic benefits of the machine.

[0003] However, although the prior art improves the replacement efficiency of the plate cylinder on the printing machine by using a hydraulic cylinder to drive the plug in and out of the socket, it still has the following two disadvantages: First, when performing the replacement operation, the staff needs to start the hydraulic cylinder and take and place the plate cylinder in two processes to achieve disassembly and assembly, which is not convenient for further shortening the replacement time of the plate cylinder; Second, the use of the hydraulic cylinder requires the additional equipment such as a hydraulic pump to provide hydraulic energy, thereby increasing the use cost of the equipment. Utility Model Content

[0004] The utility model aims to provide a high-efficiency and low-cost fast-plate-changing printing cylinder.

[0005] The technical solution adopted by the utility model to solve the above problems is:

[0006] A quick plate-changing printing roller comprises: a printing plate roller and two grooves symmetrically arranged on a frame, wherein a slot is arranged on one side of the inner walls adjacent to the two grooves, and both side edges of the printing plate roller are fixedly connected to a rotating shaft, one end of the rotating shaft is rotatably connected to a rotating seat, an empty slot is arranged inside the rotating seat, an inner side wall of the empty slot is fixedly connected to a rod body, an insertion block for inserting into the slot is movably sleeved on the rod body, the outer side of the insertion block is slidably connected to the rotating seat, a spring is sleeved on the rod body, two ends of the spring are respectively fixedly connected to the rotating seat and the insertion block, a connecting baffle is fixedly connected to the outer side of the insertion block, a protrusion is fixedly connected to one side of the connecting baffle, a push block is tightly attached to the outer side of the protrusion, and the push block is slidably connected to the inside of the rotating seat.

[0007] Preferably, a stopper is fixedly sleeved on the outer side of the push block, and the stopper is arranged inside the empty groove.

[0008] Preferably, a bearing is fixedly mounted on one side of the rotating seat, and an inner ring of the bearing is rotatably connected to the rotating shaft.

[0009] Preferably, a sliding groove is provided on the inner side wall of the empty groove, a sliding block is slidably connected to the inner side wall of the sliding groove, and one side of the sliding block is fixedly connected to the connecting baffle.

[0010] Preferably, a limiting groove is provided inside the insert block, and an inner side wall of the limiting groove is slidably connected to the rod body.

[0011] Preferably, a rubber pad is fixedly connected to the inner side wall of the slot.

[0012] Preferably, the contact surfaces of the push block and the protrusion are both arc-shaped structures.

[0013] In summary, the present application includes at least one of the following beneficial effects:

[0014] The quick plate-changing printing cylinder is provided with a rotating seat on the rotating shaft of the plate cylinder, and a push block and an insert block are provided inside the rotating seat, so that the staff can press the push block while taking and placing the plate cylinder on the frame, so that the protrusion can drive the insert block to move into the empty slot under the squeezing action of the push block, and after the push block is released, the insert block can be inserted into the slot under the tensioning force of the spring, thereby facilitating the quick replacement of the plate cylinder on the frame; through the above arrangement, not only the replacement time of the plate cylinder is effectively shortened, but also the use cost of the printing equipment is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of an embodiment of the quick plate-changing printing cylinder.

[0016] Figure 2 It is a schematic diagram of the structure of the insert block and the slot in the embodiment of the quick plate-changing printing roller.

[0017] Figure 3 It is a schematic diagram of the structure inside the rotating seat in the embodiment of the quick plate-changing printing cylinder.

[0018] Figure 4 It is an enlarged schematic diagram of area A of the structural schematic diagram of the rotating seat in the embodiment of the quick plate-changing printing cylinder.

[0019] In the figure: 1, plate cylinder; 10, rotating shaft; 11, rotating seat; 12, empty slot; 13, rod body; 14, spring; 15, plug block; 16, connecting baffle; 17, protrusion; 18, push block; 19, stop block; 101, slider; 102, slide groove; 103, bearing; 104, limit groove; 2, frame; 20, groove; 21, slot. DETAILED DESCRIPTION

[0020] The present invention will be further described in detail below with reference to the accompanying drawings and through examples. The following examples are provided to explain the present invention, but the present invention is not limited to the following examples.

[0021] See also Figure 1-Figure 4 This embodiment provides a quick plate-changing printing cylinder, including: a plate cylinder 1 and two grooves 20 symmetrically opened on a frame 2.

[0022] In one embodiment, in order to remove the printing plate cylinder 1 from the frame 2 of the printing equipment, the staff can hold the rotating seat 11 with both hands and press the two push blocks 18 into the empty slot 12, so that the protrusion 17 can be squeezed by the push block 18 and can drive the plug block 15 to move out of the slot 21 and enter the empty slot 12 through the connecting baffle 16, so that the rotating seat 11 loses its fixing force on the frame 2 and the staff can remove the printing plate cylinder 1. In addition, when installing the replaced printing plate cylinder 1, the staff can place the rotating seat 11 in the groove 20 and press the push block 18 into the empty slot 12, so that after the push block 18 is released, the plug block 15 can slide on the rod body 13 under the reset action of the spring 14, so that the plug block 15 can be inserted into the slot 21, so that the two rotating seats 11 can be It can be synchronously fixed on the frame 2 of the printing equipment, so as to complete the installation of the printing plate cylinder 1; a slot 21 is provided on one side of the inner wall adjacent to the two grooves 20, and the two side edges of the printing plate cylinder 1 are fixedly connected with a rotating shaft 10, one end of the rotating shaft 10 is rotatably connected with a rotating seat 11, and an empty slot 12 is provided inside the rotating seat 11, and the inner side wall of the empty slot 12 is fixedly connected with a rod body 13, and an insert block 15 for inserting into the slot 21 is movably sleeved on the rod body 13, and the outer side of the insert block 15 is slidably connected with the rotating seat 11, and a spring 14 is sleeved on the rod body 13, and the two ends of the spring 14 are respectively fixedly connected with the rotating seat 11 and the insert block 15, and the outer side of the insert block 15 is fixedly connected with a connecting baffle 16, and one side of the connecting baffle 16 is fixedly connected with a protrusion 17, and the outer side of the protrusion 17 is tightly attached to a push block 18, and the push block 18 is slidably connected to the inside of the rotating seat 11.

[0023] It should be noted that in order to facilitate the pushing block 18 to squeeze the protrusion 17 , under normal conditions, the end of the protrusion 17 can always stay on the center line of the moving trajectory of the pushing block 18 through the connecting baffle 16 and the insert block 15 under the limiting action of the spring 14 .

[0024] In one embodiment, in order to prevent the push block 18 from being completely squeezed out of the hollow groove 12 under the action of the protrusion 17 , a stopper 19 is fixedly mounted on the outer side of the push block 18 , and the stopper 19 is arranged inside the hollow groove 12 .

[0025] In one embodiment, in order to improve the stability of the plate cylinder 1 when it rotates on the rotating seat 11 via the rotating shaft 10 , a bearing 103 is fixedly installed on one side of the rotating seat 11 , and the inner ring of the bearing 103 is rotatably connected to the rotating shaft 10 .

[0026] In one embodiment, in order to keep the connecting plate stable when moving and to facilitate limiting the movement of the plug 15, a sliding groove 102 is provided on the inner wall of the slot 12, and a slider 101 is slidably connected to the inner wall of the sliding groove 102, and one side of the slider 101 is fixedly connected to the connecting baffle 16; in order to further ensure the stability of the plug 15 when moving, a limiting groove 104 is provided inside the plug 15, and the inner wall of the limiting groove 104 is slidably connected to the rod body 13.

[0027] In one embodiment, in order to enable the elastic force of the rubber pad to tension the plug block 15 entering the slot 21, thereby improving the stability of the plug block 15 in the slot 21, a rubber pad is fixedly connected to the inner wall of the slot 21; in order to facilitate the mutual squeezing of the push block 18 and the protrusion 17, the contact surfaces of the push block 18 and the protrusion 17 are both arc-shaped structures.

[0028] Working principle: When removing the plate cylinder 1 from the frame 2 of the printing equipment, the staff can press the two push blocks 18 into the empty slot 12 while holding the rotating seat 11 with both hands, so that the protrusion 17 can be squeezed by the push block 18 and can drive the plug block 15 to move out of the slot 21 and enter the empty slot 12 through the connecting baffle 16, so that the rotating seat 11 loses its fixing force on the frame 2 and the staff can remove the plate cylinder 1. In addition, in order to install the replaced plate cylinder 1, the staff can place the rotating seat 11 in the groove 20 and press the push block 18 into the empty slot 12, so that after the push block 18 is released, the plug block 15 can slide on the rod body 13 under the reset action of the spring 14, so that the plug block 15 can be inserted into the slot 21, so that the two rotating seats 11 can be synchronously fixed on the frame 2 of the printing equipment, thereby completing the installation of the plate cylinder 1.

[0029] The above contents described in this specification are merely examples of the present utility model. Those skilled in the art of the present utility model may make various modifications or additions to the specific embodiments described, or replace them in similar ways, as long as they do not deviate from the contents of the present utility model specification or exceed the scope defined in the claims, they shall all fall within the protection scope of the present utility model.

Claims

1. A fast plate-changing printing cylinder, characterized in that: include: A printing plate cylinder (1) and two grooves (20) symmetrically arranged on a frame (2), wherein a slot (21) is arranged on one side of the adjacent inner walls of the two grooves (20), and both side edges of the printing plate cylinder (1) are fixedly connected to a rotating shaft (10), one end of the rotating shaft (10) is rotatably connected to a rotating seat (11), an empty groove (12) is arranged inside the rotating seat (11), an inner side wall of the empty groove (12) is fixedly connected to a rod body (13), and a movable sleeve on the rod body (13) is provided for inserting into the slot (21). The plug block (15) is provided in the embodiment of the present invention, the outer side of the plug block (15) is slidably connected to the rotating seat (11), the rod body (13) is provided with a spring (14), the two ends of the spring (14) are respectively fixedly connected to the rotating seat (11) and the plug block (15), the outer side of the plug block (15) is fixedly connected to a connecting baffle (16), one side of the connecting baffle (16) is fixedly connected to a protrusion (17), the outer side of the protrusion (17) is tightly attached to a push block (18), and the push block (18) is slidably connected to the inside of the rotating seat (11).

2. The rapid plate-changing printing cylinder according to claim 1, characterized in that: A stopper (19) is fixedly sleeved on the outer side of the push block (18), and the stopper (19) is arranged inside the hollow groove (12).

3. The rapid plate-changing printing cylinder according to claim 1, characterized in that: A bearing (103) is fixedly mounted on one side of the rotating seat (11), and the inner ring of the bearing (103) is rotatably connected to the rotating shaft (10).

4. The rapid plate-changing printing cylinder according to claim 1, characterized in that: The inner side wall of the empty slot (12) is provided with a sliding slot (102), the inner side wall of the sliding slot (102) is slidably connected with a sliding block (101), and one side of the sliding block (101) is fixedly connected to a connecting baffle (16).

5. The rapid plate-changing printing cylinder according to claim 1, characterized in that: A limiting groove (104) is provided inside the insert block (15), and an inner side wall of the limiting groove (104) is slidably connected to the rod body (13).

6. The rapid plate-changing printing cylinder according to claim 1, characterized in that: The inner side wall of the slot (21) is fixedly connected with a rubber pad.

7. The rapid plate-changing printing cylinder according to claim 2, characterized in that: The contact surfaces of the push block (18) and the protrusion (17) are both arc-shaped structures.

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