Printing roller finish turning end rotating frame

Abstract

The utility model discloses a printing roller finish turning machining end rotating frame which comprises a base, a lower semicircular ring, an upper semicircular ring and supporting guiders, the lower semicircular ring is fixedly installed on the base, and the supporting guiders are arranged on a combination of the lower semicircular ring and the upper semicircular ring in an annular array mode. The supporting guider is composed of an outer cylinder, an adjusting rod, two guide sleeves, an arc-shaped brake pad, a guide rod, a spring, a screw rod, a nut and a pressing wheel. The two guide sleeves are fixedly installed in the outer cylinder. When the supporting guider of the rotating frame is used for adjusting the position of the adjusting rod and the pressing wheel assembly, the arc-shaped brake pad can be separated from the adjusting rod in a mode of manually screwing the nut, and the supporting guider has the advantage of being easy to operate. In the using process, the two arc-shaped brake pads tightly hold the adjusting rod to limit and fix the adjusting rod, compared with the mode that the position of the adjusting rod is adjusted in a threaded transmission mode, the adjusting rod cannot axially displace in the using process, and the reliability of the position precision of the pressing wheel in the using process is improved.

Description

Technical Field

[0001] This utility model belongs to the field of roller technology, and in particular relates to a rotating frame for precision machining of the end of a printing roller. Background Technology

[0002] During the precision machining of printing rollers, the inner end is fixed by the three-jaw chuck of the machine tool, and the outer end is fixed by the rotating frame. In order to meet the clamping requirements of printing rollers of different diameters, the rotating frame is equipped with a support guide with an adjustable pressure roller position. Currently, the support guide adjusts the pressure roller position by thread adjustment. Thread adjustment is prone to screw rotation problems due to the vibration force during machine tool processing, which affects the positional accuracy of the pressure roller and requires frequent measurement and adjustment of the pressure roller position. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to provide a printing roller end rotating frame with high reliability for use in the pressure roller position.

[0004] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution: a rotating frame for precision machining of the end of a printing roller, comprising a base, a lower semi-circular ring, an upper semi-circular ring, and a support guide. The lower semi-circular ring is fixedly installed on the base, and the rear end of the upper semi-circular ring is hinged to the lower semi-circular ring. Extension plates are provided at the front ends of the lower and upper semi-circular rings. The extension plates of the lower and upper semi-circular rings are locked and fixed by bolts and lock nuts. The support guides are arranged in a ring array on the assembly of the lower and upper semi-circular rings.

[0005] The support guide consists of an outer cylinder, an adjusting rod, a guide sleeve, an arc-shaped brake pad, a spring, a screw, a nut, and a pressure roller. Two guide sleeves are fixedly installed inside the outer cylinder, the adjusting rod is slidably installed inside the guide sleeve, and the pressure roller is rotatably installed at the bottom end of the adjusting rod. Two arc-shaped brake pads are placed inside the outer cylinder, and two guide rods are slidably installed on the outer cylinder. The inner ends of the guide rod and the screw are fixedly connected to the outer surface of the arc-shaped brake pads. The screw passes through the outer cylinder, and the spring is sleeved on the guide rod. The two ends of the spring act on the inner wall of the outer cylinder and the outer surface of the arc-shaped brake pad, respectively. The nut is screwed on the outer end of the screw.

[0006] Preferably, a slider is fixedly installed at the bottom of the base.

[0007] Preferably, three support guides are provided, with two support guides located on the left and right sides of the lower semi-circular ring, and one support guide 5 fixedly located at the top center of the upper semi-circular ring.

[0008] Preferably, a connecting plate is fixedly installed on the top of the adjusting rod.

[0009] Compared with the prior art, the advantages of this utility model are: when adjusting the position of the support guide of this rotating frame, the position of the adjusting rod and the pressure roller assembly can be separated from the adjusting rod by manually tightening the nut, which has the advantage of simple operation. During use, the two arc-shaped brake pads clamp the adjusting rod to limit and fix its position. Compared with the method of adjusting the position of the adjusting rod by threaded transmission, the adjusting rod will not have axial displacement during use, thus improving the reliability of the positional accuracy of the pressure roller during use. Attached Figure Description

[0010] The present invention will be further described below with reference to the accompanying drawings.

[0011] Figure 1 This is the front view of this utility model.

[0012] Figure 2 This is a diagram of the internal structure of the support guide. Detailed Implementation

[0013] The present invention will now be described in detail with reference to specific embodiments:

[0014] like Figure 1 and Figure 2 The rotating frame for precision machining of printing roller ends shown includes a base 1, a lower semi-circular ring 2, an upper semi-circular ring 3, and a support guide 5. The lower semi-circular ring 2 is fixedly installed on the base 1, and the rear end of the upper semi-circular ring 3 is hinged to the lower semi-circular ring 2. Extension plates are provided at the front ends of the lower semi-circular ring 2 and the upper semi-circular ring 3. The extension plates of the lower semi-circular ring 2 and the upper semi-circular ring 3 are locked and fixed by bolts 4 and lock nuts. The support guide 5 is arranged in a ring array on the assembly of the lower semi-circular ring 2 and the upper semi-circular ring 3.

[0015] The support guide 5 consists of an outer cylinder 51, an adjusting rod 52, a guide sleeve 53, an arc-shaped brake pad 54, a guide rod 55, a spring 56, a screw 57, a nut 58, and a pressure roller 510. The two guide sleeves 53 are fixedly installed inside the outer cylinder 51. The adjusting rod 52 is slidably installed inside the guide sleeve 53. The pressure roller 510 is rotatably installed at the bottom end of the adjusting rod 52. The two arc-shaped brake pads 54 are placed inside the outer cylinder 51. The two guide rods 55 are slidably installed on the outer cylinder 51. The inner ends of the guide rods 55 and the screw 57 are fixedly connected to the outer surface of the arc-shaped brake pads 54. The screw 57 passes through the outer cylinder 51. The spring 56 is sleeved and installed on the guide rod 55. The two ends of the spring 56 act on the inner wall of the outer cylinder 51 and the outer surface of the arc-shaped brake pads 54, respectively. The nut 58 is screwed and installed on the outer end of the screw 57.

[0016] A slider 11 is fixedly installed at the bottom of the base 1. The slider 11 is slidably installed on the slide rail of the machine tool to facilitate the adjustment of the installation position of the base 1 on the machine tool.

[0017] Three support guides 5 are provided, two of which are located on the left and right sides of the lower semicircular ring 2, and one support guide 5 is fixedly located at the top center of the upper semicircular ring 3. The two support guides 5 of the lower semicircular ring 2 provide support for the printing roller 10, and the one support guide 5 on the upper semicircular ring 3 provides pressure for the printing roller 10.

[0018] A connecting plate 59 is fixedly installed on the top of the adjusting rod 52, which facilitates the user to push and pull the adjusting rod 52.

[0019] When the printing roller 10 is clamped and fixed during the precision machining operation, the inner end of the printing roller 10 is clamped and fixed by the three-jaw chuck of the machine tool. The bolt 4 and the lock nut are unscrewed, the upper semi-circular ring 3 is opened, and the outer end of the printing roller 10 is placed on the pressure rollers 510 of the two support guides 5 of the lower semi-circular ring 2. The upper semi-circular ring 3 is rotated to close with the lower semi-circular ring 2 and is locked and fixed by the bolt 4 and the lock nut. The pressure rollers 510 of the support guides 5 of the upper semi-circular ring 3 press on the printing roller 10.

[0020] When it is necessary to adjust the position of the assembly of adjusting rod 52 and pressure roller 510, tighten nut 58 to drive the assembly of screw 57, arc-shaped brake pad 54 and guide rod 55 to move outward against the elastic force of spring 56, so that arc-shaped brake pad 54 separates from adjusting rod 52. At this time, the position of adjusting rod 52 can be adjusted freely. After the adjustment is completed, loosen nut 58 so that the assembly of screw 57, arc-shaped brake pad 54 and guide rod 55 moves inward under the action of spring 56. Arc-shaped brake pad 54 fits against the outer surface of adjusting rod 52, so as to limit the axial movement of adjusting rod 52.

Claims

1. A rotating frame for precision machining the end of a printing roller, characterized in that: It includes a base (1), a lower semi-circular ring (2), an upper semi-circular ring (3) and a support guide (5). The lower semi-circular ring (2) is fixedly installed on the base (1). The rear end of the upper semi-circular ring (3) is hinged to the lower semi-circular ring (2). The front ends of the lower semi-circular ring (2) and the upper semi-circular ring (3) are fitted with extension plates. The extension plates of the lower semi-circular ring (2) and the upper semi-circular ring (3) are locked and fixed by bolts (4) and lock nuts. The support guide (5) is arranged in a ring array on the combination of the lower semi-circular ring (2) and the upper semi-circular ring (3). The support guide (5) consists of an outer cylinder (51), an adjusting rod (52), a guide sleeve (53), an arc-shaped brake pad (54), a guide rod (55), a spring (56), a screw (57), a nut (58), and a pressure roller (510). The two guide sleeves (53) are fixedly installed inside the outer cylinder (51), the adjusting rod (52) is slidably installed inside the guide sleeve (53), and the pressure roller (510) is rotatably installed at the bottom end of the adjusting rod (52). The two arc-shaped brake pads (54) Placed inside the outer cylinder (51), two guide rods (55) are slidably mounted on the outer cylinder (51). The inner ends of the guide rods (55) and the screw (57) are fixedly connected to the outer surface of the arc-shaped brake pad (54). The screw (57) passes through the outer cylinder (51). The spring (56) is sleeved on the guide rod (55). The two ends of the spring (56) act on the inner wall of the outer cylinder (51) and the outer surface of the arc-shaped brake pad (54) respectively. The nut (58) is screwed on the outer end of the screw (57).

2. The printing roller precision machining end rotating frame according to claim 1, characterized in that: The bottom of the base (1) is fixedly installed with a slider (11).

3. The printing roller precision machining end rotating frame according to claim 1, characterized in that: There are three support guides (5), two of which are located on the left and right sides of the lower semicircular ring (2), and one support guide (5) is fixedly located at the top center of the upper semicircular ring (3).

4. The printing roller precision machining end rotating frame according to claim 1, characterized in that: A connecting plate (59) is fixedly installed on the top of the adjusting rod (52).

Images