A clamping structure for printing roller detection

Abstract

This invention relates to the technical field of printing roller manufacturing, specifically to a clamping structure for printing roller shaft detection. The structure includes a rotating cylinder, a turntable, and rocker arms. The rotating cylinder has an opening at its upper end and an internal cavity for the printing roller to extend into. A mounting seat is located at its upper end. Gears are mounted on the outer peripheral wall of the bottom of the rotating cylinder. The turntable has a work station hole at its center for the printing roller to pass through, and the work station hole communicates with the internal cavity. The turntable and the rotating cylinder are rotatably connected. Three rocker arms are evenly distributed outside the work station hole. The two ends of each rocker arm are movably connected to the turntable and the mounting seat, respectively, so that when the turntable rotates, the rocker arms press and fix the printing roller extending into the internal cavity through the work station hole. This invention has a reasonable and simple structure, strong practicality, and can stably clamp the printing roller.

Description

Technical Field

[0001] This invention relates to the technical field of printing roller manufacturing, and more specifically, to a clamping structure for printing roller shaft detection. Background Technology

[0002] Printing rollers are used to print on flexographic printing plates. After the printing rollers are processed and formed, their surfaces need to be inspected. The current mainstream method is to place the printing rollers horizontally on two symmetrical bases, and then use a dial indicator to contact the surface of the printing rollers. By manually rotating the printing rollers, the dial indicator is brought into contact with the peripheral wall of the printing rollers to meet the inspection requirements.

[0003] The existing method described above involves manually rotating the printing roller, and during testing, a dial indicator needs to be manually moved along the length of the printing roller, which affects the accuracy of the test. A better approach would be to place the printing roller vertically and then use a special clamping structure to fix it so that it can rotate. However, such a special clamping structure does not currently exist. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a clamping structure for printing roller shaft detection that is reasonable and simple in structure, highly practical, and can stably clamp printing rollers.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A clamping structure for detecting printing roller shafts includes,

[0007] The rotating cylinder has an opening at its upper end and an internal cavity into which the printing roller extends. A mounting base is provided at its upper end, and gears are provided on the outer peripheral wall at the bottom of the rotating cylinder.

[0008] The turntable has a central hole for the printing roller to pass through. This hole connects to the inner cavity, and the turntable is rotatably connected to the rotating cylinder.

[0009] There are three rocker arms, which are evenly distributed on the outside of the work station hole. The two ends of the rocker arms are movably connected to the turntable and the mounting seat, respectively, so that when the turntable rotates, the rocker arms squeeze and fix the printing roller that extends through the work station hole into the inner cavity.

[0010] The present invention is further configured such that: the turntable includes a lower plate body and an upper plate body, the upper plate body is provided with a support column connected to the lower plate body, there are three support columns, the support columns are arranged around the outside of the work station hole, and one of the support columns is connected to a handle;

[0011] A workstation for connecting one end of a rocker arm is formed between two adjacent support columns. The upper and lower plates at this workstation have connecting holes that are on the same axis. One end of the rocker arm is rotatably connected to the connecting hole.

[0012] The present invention is further configured such that: an extension block is provided on the outer wall of the mounting seat, and a step portion for the turntable to move is formed between the extension block and the rotating cylinder;

[0013] An opening groove is provided on the top surface of the mounting base, and a sliding groove is provided on the bottom of the opening groove. The sliding groove is arc-shaped.

[0014] The invention is further configured such that: the rocker arm comprises an inner rotating body, a beam body, and an outer rotating body connected in sequence; both the inner and outer rotating bodies are cylindrical; an upper eccentric pin and a lower eccentric pin are respectively provided on the upper and lower end faces of the inner rotating body; the upper and lower eccentric pins are rotatably connected to connecting holes on the upper and lower disc bodies, respectively.

[0015] The outer rotating body is positioned inside the opening slot and is movably connected to the opening slot.

[0016] The invention is further configured such that: a pin is provided at the lower part of the outer rotating body, the pin extends into the slide groove and is slidably connected to the slide groove.

[0017] Compared with the shortcomings of the prior art, the beneficial effects of the present invention are as follows:

[0018] The printing roller with detection is inserted vertically into the rotating cylinder. By holding the handle and rotating the turntable, the cylinder will rotate. When the turntable rotates, it will move the three rocker arms synchronously. When the rocker arms move, the inner rotating body will move inward or outward within the station hole, thereby squeezing and clamping the printing roller in the station hole, ensuring the stability of the printing roller when it is driven to rotate. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the present invention;

[0020] Figure 2 This is a sectional view of the rotating cylinder;

[0021] Figure 3 This is a schematic diagram of the rocker arm.

[0022] Rotating cylinder 1, turntable 2, rocker arm 3, inner cavity 10, mounting seat 4, extension block 41, step part 11, gear 12, opening slot 40, sliding groove 401, work station hole 20, lower plate body 21, upper plate body 22, support column 23, inner rotating body 31, beam body 32, outer rotating body 33, upper eccentric pin 311, lower eccentric pin 312, pin shaft 331. Detailed Implementation

[0023] Reference Figures 1 to 3 The embodiments of the present invention will be further described below.

[0024] The specific structure of this embodiment includes a rotating cylinder 1, a turntable 2, and three rocker arms 3. The turntable 2 and the rotating cylinder 1 are rotatably connected, and the rocker arms 3 are also rotatably connected to the turntable 2 and the rotating cylinder 1.

[0025] The rotating cylinder 1 has an opening at its upper end and an inner cavity 10 inside for the printing roller to extend into. A mounting seat 4 is provided at its upper end, and gears are provided on the outer peripheral wall at the bottom of the rotating cylinder 1.

[0026] An extension block 41 is provided on the outer side wall of the mounting base 4. A step portion 11 for the turntable 2 to move is formed between the bottom surface of the extension block 41 and the upper end surface of the rotating cylinder 1. A recessed opening groove 40 is provided on the top surface of the mounting base 4, and a sliding groove 401 is provided on the bottom of the opening groove 40. The sliding groove 401 is arc-shaped.

[0027] There is a station hole 20 in the center of the turntable 2 for the printing roller to pass through. The station hole 20 is connected to the inner cavity 10. Three rocker arms 3 are evenly distributed on the outside of the station hole 20. The two ends of the rocker arms 3 are movably connected to the turntable 2 and the mounting base 4, so that when the turntable 2 rotates, the rocker arms 3 squeeze and fix the printing roller that extends into the inner cavity 10 through the station hole 20.

[0028] The turntable 2 includes a lower plate 21 and an upper plate 22. A support column 23 is provided between the upper plate 22 and the lower plate 21. There are three support columns 23, which are arranged around the outside of the work station hole 20. One of the support columns 23 is connected to a handle. The support column 23 lifts the upper plate 22, so that the rocker arm 3 has room to move.

[0029] A workstation for connecting one end of the rocker arm 3 is formed between two adjacent support columns 23. The upper plate 22 and the lower plate 21 at this workstation are provided with connecting holes that are on the same axis.

[0030] The rocker arm 3 includes an inner rotating body 31, a beam 32, and an outer rotating body 33 connected in sequence. Both the inner rotating body 31 and the outer rotating body 33 are cylindrical. The upper and lower end faces of the inner rotating body 31 are respectively provided with an upper eccentric pin 311 and a lower eccentric pin 312, which are rotatably connected to the connecting holes on the upper plate 22 and the lower plate 21, respectively. The outer rotating body 33 is placed in the opening slot 40. The lower part of the outer rotating body 33 is provided with a pin 331, which extends into the sliding groove 401 and is slidably connected to the sliding groove 401. The sliding groove 401 is arc-shaped to accommodate the path of the outer rotating body 33 during movement.

[0031] Working principle:

[0032] The printing roller to be tested is vertically inserted into the cavity of the rotating cylinder 1. By rotating the handle counterclockwise, the handle causes the turntable 2 to rotate within the three stepped sections 11. During this time, the upper plate 22 and lower plate 21, along with the inner rotating body 31 of the rocker arm 3, press towards the center of the station hole 20. At this time, the outer rotating body 33 is moved outward within the opening, and the pin moves along the slide groove 401, thereby achieving the pressing and fixing of the printing roller on the station hole 20 by the three inner rotating bodies 31. When the handle is rotated clockwise, the handle causes the turntable 2 to rotate, and the inner rotating body 31 of the rocker arm 3 expands outward towards the outside of the station hole 20. At this time, the outer rotating body 33 is moved inward within the opening, thereby achieving the detachment of the three inner rotating bodies 31 from the printing roller. The printing roller is then disassembled. Since the rotating cylinder 1 has an external gear and a shaft at the bottom, the rotating cylinder 1 can be rotated via the gear of the motor.

[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any ordinary changes and substitutions made by those skilled in the art within the scope of the technical solution of the present invention should be included within the protection scope of the present invention.

Claims

1. A clamping structure for detecting printing roller shafts, characterized in that: The device includes a rotating cylinder (1) with an opening at its upper end and an inner cavity (10) for the printing roller to extend into. A mounting seat (4) is provided at its upper end. Gears are provided on the outer peripheral wall of the bottom of the rotating cylinder (1). A turntable (2) has a work station hole (20) in the center of the turntable (2) for the printing roller to pass through. The work station hole (20) is connected to the inner cavity (10). The turntable (2) and the rotating cylinder (1) are rotatably connected. There are three rocker arms (3), which are evenly distributed on the outside of the work station hole (20). The two ends of the rocker arms (3) are movably connected to the turntable (2) and the mounting seat (4) respectively, so that when the turntable (2) rotates, the rocker arms (3) squeeze and fix the printing roller that extends into the inner cavity (10) through the work station hole (20).

2. The clamping structure for printing roller shaft detection according to claim 1, characterized in that: The turntable (2) includes a lower plate (21) and an upper plate (22). The upper plate (22) is provided with a support column (23) connected to the lower plate (21). There are three support columns (23). The support columns (23) are arranged around the outside of the work station hole (20). One of the support columns (23) is connected to a handle. A work station for connecting one end of the rocker arm (3) is formed between two adjacent support columns (23). The upper plate (22) and the lower plate (21) at the work station are provided with a connection hole on the same axis. One end of the rocker arm (3) is rotatably connected to the connection hole.

3. The clamping structure for printing roller shaft detection according to claim 2, characterized in that: An extension block (41) is provided on the outer wall of the mounting base (4), and a step (11) for the turntable (2) to move is formed between the extension block (41) and the rotating cylinder (1); an opening groove (40) is provided on the top surface of the mounting base (4), and a sliding groove (401) is provided on the bottom of the opening groove (40), which is arc-shaped.

4. The clamping structure for printing roller detection according to claim 3, characterized in that: The rocker arm (3) includes an inner rotating body (31), a beam body (32), and an outer rotating body (33) connected in sequence. Both the inner rotating body (31) and the outer rotating body (33) are cylindrical. The upper and lower end faces of the inner rotating body (31) are respectively provided with an upper eccentric pin (311) and a lower eccentric pin (312). The upper eccentric pin (311) and the lower eccentric pin (312) are rotatably connected to the connecting holes on the upper plate (22) and the lower plate (21), respectively. The outer rotating body (33) is placed in the opening groove (40) and is movably connected to the opening groove (40).

5. The clamping structure for detecting printing roller shafts according to claim 4, characterized in that: The lower part of the outer rotating body (33) is provided with a pin (331), which extends into the slide groove (401) and is slidably connected with the slide groove (401).

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