Tension roller polishing device

Abstract

The utility model discloses a tension roller polishing device which comprises a rotating roller seat, a tension roller is placed on the rotating roller seat, three-jaw chucks are further arranged at the two ends of the tension roller, the tension roller is driven by the three-jaw chucks to rotate on the rotating roller seat, and a movable frame capable of moving left and right is arranged above the tension roller. Swing arms are arranged on the two sides of the bottom of the movable frame in a mirroring mode, polishing heads are arranged at the lower ends of the swing arms, and the polishing heads make contact with the surface of the tension roller. The movable frame is arranged at the upper end of the tension roller, the two swing arms arranged in the mirror image mode are arranged at the lower end of the movable frame, and the polishing heads are installed on the swing arms, so that during polishing work, the polishing head on one swing arm conducts polishing work firstly, and when the polishing head is damaged, the polishing head is replaced by the polishing head on the other swing arm. And the polishing head on the other swing arm can be quickly switched to work, so that non-stop switching of the polishing head is realized, and the working efficiency of surface treatment of the tension roller is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tension roll processing equipment, in particular to a tension roll grinding device. Background Art

[0002] In steel rolling production, the main function of the tension roll is to provide necessary tension for the strip steel through the combined action of frictional force and other forces, so as to ensure the stable and correct operation state of the strip steel during the processing. When the tension roll starts and stops suddenly, it will cause an instantaneous increase in the frictional force on the surface of the tension roll, which will lead to relative sliding between the tension roll and the strip steel, thus aggravating the wear on the surface of the tension roll. Once the tension roll is worn, it is very difficult to guarantee the quality of the strip steel. Therefore, it is necessary to regularly grind the surface of the tension roll to ensure the smoothness of the surface of the tension roll. At present, when grinding and correcting the tension roll, generally, the tension roll is placed in a rotatable tooling, and then a movable grinding head is arranged outside the tension roll. The grinding head is attached to the surface of the tension roll, and then the rotation of the tension roll is controlled and the grinding head is controlled to move horizontally along the surface of the tension roll, so that the grinding work on the surface of the tension roll can be completed. However, in the actual maintenance process, since the grinding head will be worn during operation, it is difficult for a single grinding head to complete the grinding operation of the entire tension roll, which requires stopping the machine to replace the grinding head, thus affecting the grinding efficiency of the tension roll and bringing great inconvenience to production. Content of the Utility Model

[0003] The purpose of the utility model is to avoid the deficiencies of the prior art and provide a tension roll grinding device, so as to effectively solve the deficiencies existing in the prior art.

[0004] To achieve the above purpose, the technical solution adopted by the utility model is: a tension roll grinding device, including a rotating roller seat, the tension roll is placed on the rotating roller seat, and three-jaw chucks are also arranged at both ends of the tension roll. The tension roll rotates on the rotating roller seat driven by the three-jaw chucks. An adjustable movable frame is arranged above the tension roll. Swing arms are mirror-symmetrically arranged on both sides of the bottom of the movable frame. A grinding head is arranged at the lower end of the swing arm, and the grinding head is in contact with the surface of the tension roll.

[0005] Further, a connecting plate is arranged in the middle of the bottom end of the movable frame. The end parts of the swing arms are respectively hinged to the front and rear sides of the connecting plate. The grinding head is arranged at one end of the swing arm far away from the connecting plate. The swing arm is controlled to rotate by a cylinder.

[0006] Further, the cylinders are respectively arranged on both sides of the movable frame. The cylinder barrels of the cylinders are hinged to the bottom of the movable frame. The piston rods of the cylinders are arranged vertically downward, and the end parts of the piston rods are hinged to the ends of the swing arms far away from the connecting plate.

[0007] Further, the grinding head includes a mounting head disposed at the lower end of the swing arm. A grinding block is provided at the bottom of the mounting head, and the lower end of the grinding block is adapted to the outer shape of the tension roller.

[0008] Further, a bracket is provided on the outer side of the tension roller. The horizontal plate of the bracket is located above the tension roller, and the movable frame moves left and right along the horizontal plate of the bracket.

[0009] Further, the movable frame includes a movable plate disposed above the horizontal plate. Connecting rods penetrating the horizontal plate are provided on both sides of the bottom of the movable plate. Transverse movable notches are provided on the horizontal plate at positions corresponding to the connecting rods. The connecting rods move left and right within the movable notches. An installation plate is provided at the lower end of the connecting rods. The connecting plate and the air cylinder are both installed at the bottom of the installation plate.

[0010] Further, a servo motor is provided at the top of the movable plate. The rotating shaft of the servo motor passes through the movable plate, and a gear is provided on the rotating shaft. A rack is provided on the horizontal plate at a position corresponding to one side of the gear. The gear and the rack mesh with each other.

[0011] Further, guide rails are provided on the horizontal plate at positions corresponding to both sides of the rack. Sliders are provided on both sides of the movable plate, and the sliders are slidably installed on the guide rails.

[0012] The above technical solution of the present utility model has the following beneficial effects: By providing a movable frame at the upper end of the tension roller and two mirror-arranged swing arms at the lower end of the movable frame, and installing the grinding head on the swing arm, when performing grinding work, the grinding head on one swing arm first performs grinding work. When this grinding head is worn out, it is possible to quickly switch to the grinding head on the other swing arm for work, thus realizing the non-stop switching of the grinding head and greatly improving the working efficiency of the surface treatment of the tension roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic front view structural diagram of an embodiment of the present utility model;

[0014] Figure 2 is Figure 1 an enlarged view at A in

[0015] Figure 3 is a schematic side sectional view of the movable frame of an embodiment of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] In order to more clearly understand the above-mentioned objects, features, and advantages of the present utility model, the present utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0017] In the following description, many specific details are set forth in order to fully understand the present utility model. However, the present utility model can also be implemented in other ways different from those described herein. Therefore, the protection scope of the present utility model is not limited by the specific embodiments disclosed below.

[0018] As Figures 1 - 3 shown, the tension roller grinding device in this embodiment includes a rotating roller seat 1. The tension roller 2 is placed on the rotating roller seat 1. Three-jaw chucks 3 are further provided at both ends of the tension roller 2. The tension roller 2 rotates on the rotating roller seat 1 under the drive of the three-jaw chucks 3. An activity frame that can move left and right is provided above the tension roller 2. Swing arms 4 are mirror-symmetrically arranged on both sides of the bottom of the activity frame. A grinding head 5 is provided at the lower end of the swing arm 4, and the grinding head 5 is in contact with the surface of the tension roller 2.

[0019] A connecting plate 6 is provided in the middle of the bottom end of the activity frame. The end parts of the swing arms 4 are respectively hinged to the front and rear sides of the connecting plate 6. The grinding head 5 is provided at one end of the swing arm 4 away from the connecting plate 6. The swing arm 4 is controlled to rotate by a cylinder 7.

[0020] The cylinders 7 are respectively arranged on both sides of the activity frame. The cylinder barrels of the cylinders 7 are hinged to the bottom of the activity frame. The piston rods of the cylinders 7 are arranged vertically downward, and the end parts of the piston rods are hinged to one end of the swing arm 4 away from the connecting plate 6.

[0021] The cylinder 7 can drive the swing arm 4 to swing along the hinge axis on the connecting plate 6, thereby controlling the contact between the grinding head 5 and the surface of the tension roller 2.

[0022] The grinding head 5 includes a mounting head 5a provided at the lower end of the swing arm 4. A grinding block 5b is provided at the bottom of the mounting head 5a. The lower end of the grinding block 5b is adapted to the outer shape of the tension roller 2, and the grinding block 5b is in contact with the surface of the tension roller 2.

[0023] A bracket 8 is provided outside the tension roller 2. The horizontal plate 8a of the bracket 8 is located above the tension roller 2. The activity frame moves left and right along the horizontal plate 8a of the bracket 8.

[0024] The activity frame includes an activity plate 9 provided above the horizontal plate 8a. Connecting rods 10 penetrating the horizontal plate 8a are provided on both sides of the bottom of the activity plate 9. Horizontal activity notches 8b are provided on the horizontal plate 8a at positions corresponding to the connecting rods 10. The connecting rods 10 move left and right in the activity notches 8b. Mounting plates 11 are provided at the lower ends of the connecting rods 10. The connecting plate 6 and the cylinders 7 are both mounted on the bottom of the mounting plate 11.

[0025] A servo motor 12 is provided at the top of the movable plate 9. The rotating shaft of the servo motor 12 passes through the movable plate 9 and a gear 13 is provided on the rotating shaft. A rack 14 is provided on the cross plate 8a at a position corresponding to one side of the gear 13. The gear 13 and the rack 14 are meshed with each other.

[0026] Guide rails 15 are provided on the cross plate 8a at positions corresponding to both sides of the rack 14. Sliders 16 are provided on both sides of the movable plate 9. The sliders 16 are slidably mounted on the guide rails 15.

[0027] Start the servo motor 12 to drive the gear 13 to rotate along the rack 14, thereby controlling the movable frame to move left and right along the guide rail 15. In this way, when the movable frame moves, it will drive the grinding head 5 at its bottom to move along the surface of the tension roller.

[0028] The working principle of the present utility model is as follows: Place the tension roller 2 on the rotating roller seat 1, and then control the three-jaw chuck 3 to grasp and fix both ends of the tension roller. Driven by the three-jaw chuck 3, the tension roller 2 can rotate on the rotating roller seat 1. At the same time, control the movable frame to move to the left end of the tension roller 2, and then the piston rod of the right cylinder 7 extends and controls the right swing arm 4 to swing downward. In this way, the grinding head 5 at the end of the swing arm 4 will move downward and contact the surface of the tension roller 2. As the tension roller 2 rotates, the abrasive block 5b on the grinding head 5 will fit on the surface of the tension roller 2 for grinding operation, while the grinding head 5 on the other side is suspended above the tension roller 2. While the grinding head 5 is performing the grinding work, the servo motor 12 controls the entire movable frame to move to the right side of the tension roller 2. In this way, the grinding and cleaning work on the surface of the tension roller 2 is realized. During the grinding process, once the grinding head 5 is worn out excessively, control the cylinder 7 at the damaged grinding head 5 to work. The piston rod of the cylinder 7 retracts, so that the damaged grinding head 5 is separated from the surface of the tension roller 2. At the same time, the piston rod of the cylinder 7 on the other side extends and drives the swing arm 4 connected thereto to swing downward, so that the unused grinding head 5 moves downward and contacts the surface of the tension roller 2, realizing the non-stop switching of the grinding head 5 and ensuring the smooth progress of the grinding treatment on the surface of the tension roller 2.

[0029] The embodiments of the present utility model are given for the purposes of illustration and description, and are not exhaustive or limit the present utility model to the disclosed form. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present utility model, and enable those of ordinary skill in the art to understand the present utility model and thus design various embodiments with various modifications suitable for specific purposes.

Claims

1. Tension roller grinding device, characterized in that: It includes a rotating roller seat, on which a tension roller is placed. Three-jaw chucks are also provided at both ends of the tension roller. The tension roller rotates on the rotating roller seat driven by the three-jaw chucks. An adjustable carriage that can move left and right is arranged above the tension roller. Swing arms are symmetrically arranged on both sides of the bottom of the adjustable carriage. A grinding head is provided at the lower end of the swing arm, and the grinding head is in contact with the surface of the tension roller.

2. The tension roller grinding device according to claim 1, characterized in that: A connecting plate is provided in the middle of the bottom end of the adjustable carriage. The ends of the swing arms are respectively hinged to the front and rear sides of the connecting plate. The grinding head is arranged at one end of the swing arm far from the connecting plate, and the swing arm is controlled to rotate by a cylinder.

3. The tension roller grinding device according to claim 2, wherein: The cylinders are respectively arranged on both sides of the adjustable carriage. The cylinder barrel of the cylinder is hinged to the bottom of the adjustable carriage. The piston rod of the cylinder is arranged vertically downward, and the end of the piston rod is hinged to one end of the swing arm far from the connecting plate.

4. The tension roller grinding device according to claim 3, characterized in that: The grinding head includes a mounting head arranged at the lower end of the swing arm. A grinding block is provided at the bottom of the mounting head, and the lower end of the grinding block is adapted to the outer shape of the tension roller.

5. The tension roller grinding device according to claim 2, characterized in that: A bracket is arranged outside the tension roller. The horizontal plate of the bracket is located above the tension roller, and the adjustable carriage moves left and right along the horizontal plate of the bracket.

6. The tension roller grinding device according to claim 5, characterized in that: The adjustable carriage includes a movable plate arranged above the horizontal plate. Connecting rods penetrating the horizontal plate are provided on both sides of the bottom of the movable plate. Horizontal movable notches are provided on the horizontal plate at positions corresponding to the connecting rods. The connecting rods move left and right in the movable notches. The lower end of the connecting rod is provided with a mounting plate, and the connecting plate and the cylinders are both mounted on the bottom of the mounting plate.

7. The tension roller grinding device according to claim 6, characterized in that: A servo motor is provided at the top of the movable plate. The rotating shaft of the servo motor passes through the movable plate, and a gear is arranged on the rotating shaft. A rack is arranged on the horizontal plate at a position corresponding to one side of the gear, and the gear meshes with the rack.

8. The tension roller grinding device according to claim 7, characterized in that: Guide rails are provided on the horizontal plate at positions corresponding to both sides of the rack. Sliders are provided on both sides of the movable plate, and the sliders are slidably mounted on the guide rails.

Images