Printing roller dynamic balance rotating hole bracket

Abstract

The utility model discloses a printing roller dynamic balance rotating hole bracket which comprises a base, a U-shaped frame, a screw rod, a lock sleeve, a rotating shaft, a first ball bearing, an anti-rotating bracket, a pull rod, a spring and a supporting roller, the lower end of the screw rod is installed in the base in a screwed mode, the rotating shaft is coaxially and fixedly installed at the top of the screw rod, the lock sleeve is fixedly installed at the bottom of the rotating shaft, and the first ball bearing is fixedly installed at the bottom of the supporting roller. Operating rods are symmetrically and fixedly installed on the two sides of the lock sleeve, and a retainer of the first ball bearing is fixedly installed in the U-shaped frame. According to the bracket, the heights of the U-shaped frame and the supporting rollers are adjusted by rotating the screws, the use requirements of drilling operation of rollers of different sizes are met, the rollers are in a horizontal state during drilling operation, meanwhile, after height adjustment is completed, the angle of the U-shaped frame can be adjusted and locked, and the bracket has the advantages that the height and angle adjustment is convenient, and the practicability is high. And the application range is wide.

Description

Technical Field

[0001] This utility model belongs to the field of roller technology, and in particular relates to a dynamic balancing rotating hole bracket for printing rollers. Background Technology

[0002] Printing rollers are widely used in industries such as publishing, packaging, textiles, and building materials, and are an indispensable component in the printing process. After the rollers are precision-machined on a machine tool, they need to undergo a dynamic balancing test. Based on the results of the dynamic balancing test, the rollers are horizontally clamped on a rotary table for drilling and material removal. At the same time, the outer ends of the rollers need to be supported. Existing support frames are fixed structures and cannot adjust the height for rollers of different diameters. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to improve a dynamic balancing rotating hole bracket for printing rollers that can adjust the height according to rollers of different diameters.

[0004] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution: a printing roller dynamic balancing rotating hole support, comprising a base, a U-shaped frame, a screw, a locking sleeve, a rotating shaft, a first ball bearing, an anti-rotation bracket, a pull rod, a spring, and a support roller. The lower end of the screw is screwed into the base, the rotating shaft is coaxially fixedly mounted on the top of the screw, the locking sleeve is fixedly mounted on the bottom of the rotating shaft, and operating rods are symmetrically and fixedly mounted on both sides of the locking sleeve. The cage of the first ball bearing is fixedly mounted in the U-shaped frame, and the rotating shaft is fixedly mounted in the rotating body of the first ball bearing. The top of the U-shaped frame has symmetrical first V-shaped grooves on both sides. The support roller is fixedly installed with second ball bearings at both ends. The cage of the second ball bearing is embedded in the first V-shaped groove. The middle of the support roller is set with an arc-shaped groove structure. The pull rod is slidably installed in the U-shaped frame. The anti-rotation bracket is fixedly installed on the top of the pull rod. The top surface of the anti-rotation bracket is set with a first V-shaped groove structure. The lower end of the pull rod is sleeved with a stop ring that can contact the bottom surface of the U-shaped frame. The spring is sleeved on the pull rod. The upper and lower ends of the spring act on the anti-rotation bracket and the U-shaped frame, respectively.

[0005] Preferably, the top of the shaft has an external thread, and a stop nut is installed on the external thread of the shaft.

[0006] Preferably, the bottom of the pull rod is provided with a lifting ring, on which a weight can be suspended.

[0007] Preferably, the operating lever is fitted with a non-slip rubber sleeve.

[0008] Preferably, a tool placement platform is fixedly installed on the top of the base.

[0009] Preferably, a pressure cap for pressing and fixing the cage of the second ball bearing is screwed onto the base.

[0010] Compared with the prior art, the advantages of this utility model are: the height of the U-shaped frame and the support roller can be adjusted by rotating the screw to meet the usage requirements of rotating rollers of different sizes, so that the roller is in a horizontal state during the rotating operation. At the same time, after the height adjustment is completed, the angle of the U-shaped frame can be adjusted and locked. It has the advantages of convenient height and angle adjustment and wide applicability. Attached Figure Description

[0011] The present invention will be further described below with reference to the accompanying drawings.

[0012] Figure 1 This is a schematic diagram of the structure of this utility model.

[0013] Figure 2 yes Figure 1 A magnified structural diagram at point M. Detailed Implementation

[0014] The present invention will now be described in detail with reference to specific embodiments:

[0015] like Figure 1 and Figure 2 The illustrated printing roller dynamic balancing bracket includes a base 1, a U-shaped frame 2, a screw 3, a locking sleeve 4, a rotating shaft 31, a first ball bearing 32, an anti-rotation bracket 5, a pull rod 7, a spring 71, and a support roller 10. The lower end of the screw 3 is screwed into the base 1. The rotating shaft 31 is coaxially fixedly installed on the top of the screw 3. The locking sleeve 4 is fixedly installed on the bottom of the rotating shaft 31. Operating rods 41 are symmetrically and fixedly installed on both sides of the locking sleeve 4. The retainer of the first ball bearing 32 is fixedly installed in the U-shaped frame 2. The rotating shaft 31 is fixedly installed in the rotating body of the first ball bearing 32. The top of the U-shaped frame 2... The support roller 10 has symmetrical first V-shaped grooves on both sides. The support roller 10 has second ball bearings fixedly installed at both ends. The cages of the second ball bearings are embedded in the first V-shaped grooves. The middle part of the support roller 10 is set with an arc-shaped groove structure. The pull rod 7 is slidably installed in the U-shaped frame 2. The anti-rotation bracket 5 is fixedly installed on the top of the pull rod 7. The top surface of the anti-rotation bracket 5 is set with a first V-shaped groove structure. The lower end of the pull rod 7 is sleeved with a stop ring that can contact the bottom surface of the U-shaped frame 2. The spring 71 is sleeved on the pull rod 7. The upper and lower ends of the spring 71 act on the anti-rotation bracket 5 and the U-shaped frame 2, respectively.

[0016] The top of the rotating shaft 31 has an external thread, and a stop nut 33 is installed on the external thread of the rotating shaft 31. Tightening the stop nut 33 makes it contact the bottom surface of the U-shaped frame 2, which can restrict the relative rotation of the rotating shaft 31 and the U-shaped frame 2.

[0017] The bottom of the pull rod 7 is provided with a lifting ring, on which a weight block 8 can be suspended. Under the action of the weight block 8, the pull rod 7 is pulled downward against the elastic force of the spring 71, separating the anti-rotation bracket 5 from the support roller 10, so that the support roller 10 can rotate freely.

[0018] An anti-slip rubber sleeve is fixedly fitted onto the operating lever 41 to enhance its performance and improve hand comfort.

[0019] A tool placement platform 11 is fixedly installed on the top of the base 1. The tool placement platform 11 can hold tools and weight blocks 8.

[0020] A pressure cap 9 is screwed and fixedly installed on the base 1 to press and fix the cage of the second ball bearing, so as to improve the stability of the support roller 10 during use.

[0021] Depending on the diameter of the roller, the rotating operating lever 41 drives the combination of locking sleeve 4, screw 3, and rotating shaft 31 to rotate, adjusting the height of the U-shaped frame 2. After the height adjustment is completed, the angle of the U-shaped frame 2 is adjusted by rotating it. After the angle adjustment is completed, the stop nut 33 is tightened to contact the bottom surface of the U-shaped frame 2, restricting the rotation of the U-shaped frame 2. At this time, one end of the roller is clamped and positioned on the rotary table fixture, and the other end is placed on the support roller 10. When the roller is lifted by a truss for loading and placement, and the support roller 10 does not need to rotate, the weight block 8 can be removed, allowing the anti-rotation bracket 5 to move upward under the action of the spring force 71, restricting the rotation of the support roller 10. When the roller is loaded onto the support roller 10 by a horizontal conveyor belt, a weight block is hung on the lifting ring to separate the anti-rotation bracket 5 from the support roller 10, allowing the support roller 10 to rotate freely.

Claims

1. A printing roller dynamic balancing rotating hole bracket, characterized in that: The system includes a base (1), a U-shaped frame (2), a screw (3), a locking sleeve (4), a rotating shaft (31), a first ball bearing (32), an anti-rotation bracket (5), a pull rod (7), a spring (71), and a support roller (10). The lower end of the screw (3) is screwed into the base (1). The rotating shaft (31) is coaxially fixedly installed on the top of the screw (3). The locking sleeve (4) is fixedly installed on the bottom of the rotating shaft (31). Operating rods (41) are symmetrically and fixedly installed on both sides of the locking sleeve (4). The cage of the first ball bearing (32) is fixedly installed in the U-shaped frame (2). The rotating shaft (31) is fixedly installed in the rotating body of the first ball bearing (32). The top of the U-shaped frame (2) is fixedly installed in the U-shaped frame (2). The first V-shaped groove is symmetrically arranged on both sides of the part. The second ball bearing is fixedly installed at both ends of the support roller (10). The cage of the second ball bearing is embedded in the first V-shaped groove. The middle part of the support roller (10) is set with an arc-shaped groove structure. The pull rod (7) is slidably installed in the U-shaped frame (2). The anti-rotation bracket (5) is fixedly installed on the top of the pull rod (7). The top surface of the anti-rotation bracket (5) is set with a first V-shaped groove structure. The lower end of the pull rod (7) is sleeved with a stop ring that can contact the bottom surface of the U-shaped frame (2). The spring (71) is sleeved on the pull rod (7). The upper and lower ends of the spring (71) act on the anti-rotation bracket (5) and the U-shaped frame (2) respectively.

2. The printing roller dynamic balancing hole bracket according to claim 1, characterized in that: The top of the shaft (31) has an external thread, and a stop nut (33) is installed on the external thread of the shaft (31).

3. The printing roller dynamic balancing hole bracket according to claim 1, characterized in that: The bottom of the pull rod (7) is provided with a lifting ring, on which a weight block (8) can be suspended.

4. The printing roller dynamic balancing hole bracket according to claim 1, characterized in that: An anti-slip rubber sleeve is fixedly installed on the operating lever (41).

5. The printing roller dynamic balancing hole bracket according to claim 1, characterized in that: A tool placement platform (11) is fixedly installed on the top of the base (1).

6. The printing roller dynamic balancing hole bracket according to claim 1, characterized in that: A pressure cap (9) for pressing and fixing the cage of the second ball bearing is screwed and fixed on the base (1).

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