High-precision rubber roller grinding device

Abstract

The utility model discloses a high-precision rubber roller grinding device, and belongs to the field of grinding devices. The device comprises a bottom plate, a driving motor, a fan-shaped bracket, a position adjusting air cylinder, a tensioning mechanism, a multi-position steering roller and an annular abrasive belt. The tensioning mechanism comprises a tensioning cylinder and a tensioning roller; the driving slide rail penetrates through the guide frame to be fixed; one end of the driving slide rail is connected with the positioning cylinder; the other end of the driving sliding rail is connected with a fan-shaped bracket, tensioning rollers are arranged at the upper end and the lower end of the fan-shaped bracket, and the positions of the tensioning rollers are adjusted through the driving sliding rail. The annular abrasive belt is directly arranged on a transmission wheel of the driving motor in a sleeving mode, the annular abrasive belt bypasses the multi-position steering roller, the two tensioning rollers form a circle in a surrounding mode, and the two tensioning mechanisms enable the annular abrasive belt to be tensioned to make contact with a coating rubber roller to be accurately ground. According to the device provided by the utility model, the roller pattern defect is greatly reduced or even eliminated, the stable operation of a unit is ensured, the yield of the unit is increased, and the working efficiency is improved; the method can be applied to the field of plate and strip coating after metallurgical plate and strip heat treatment.

Description

Technical Field

[0001] The utility model belongs to the field of grinding devices, and in particular relates to a high-precision rubber roller grinding device. Background Art

[0002] The continuous annealing coating unit coating rubber roller grinding usually adopts coarse grinding wheel grinding. After grinding, the coating rubber roller surface will leave periodic and obvious "knife mark" (roller pattern) defects, causing coating defects on the strip surface during the production coating process, which does not meet the factory quality control standards, resulting in a large number of non-genuine products being retained, affecting normal delivery and even causing quality disputes. At the same time, the coating roller needs to be replaced frequently due to "knife mark" (roller pattern) defects, which affects the unit operation rate, output and energy consumption, increases the number of grindings, and reduces the service life of the coating roller. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model designs a device for high-precision rubber roller grinding. Based on the original grinding machine equipment, a sand belt fine grinder is added, which is used in conjunction with the original grinder to achieve integrated coarse grinding and fine grinding. The sand belt fine grinder is combined with a sand belt with a larger mesh number. After the original grinder grinding wheel is ground, the texture on the surface of the rubber roller is eliminated online to achieve a low-roughness and smooth roller surface effect, which greatly changes the grinding quality of the coating roller surface, greatly reduces the unplanned generation of coating roller texture, eliminates roller texture defects caused by this, reduces the frequency of shutdowns for roller replacement, improves production efficiency, and achieves the effect of improving energy, output, and quality in many aspects.

[0004] The utility model provides a device for grinding a high-precision rubber roller, comprising a base plate, a driving motor, a fan-shaped bracket, a positioning cylinder, a tensioning mechanism, a multi-position steering roller, and an annular sanding belt; the tensioning mechanism comprises a tensioning cylinder and a tensioning roller; a guide frame is arranged on the base plate, a driving slide rail passes through the guide frame for fixing, one end of the driving slide rail is connected to the positioning cylinder; the other end of the driving slide rail is connected to the fan-shaped bracket, and tensioning rollers are arranged at the upper and lower ends of the fan-shaped bracket, and the position of the tensioning roller is adjusted by the driving slide rail; the annular sanding belt is directly sleeved on the driving wheel of the driving motor, the annular sanding belt passes around the multi-position steering roller and two tensioning rollers to form a circle, two tensioning mechanisms tighten the annular sanding belt, and the annular sanding belt located between the two tensioning rollers contacts with the coating rubber roller to be finely ground.

[0005] The bottom plate is fixed to the head of the original grinding machine frame, 100mm-150mm away from the grinding wheel fixing frame, as the base plate of the fine grinding equipment; Further, the bottom plate is a 600mm*800m*10mm carbon steel plate; The bottom plate is connected to the grinding machine by bolts to ensure the stability of the device, reduce the vibration of the device, and make the sanding belt move smoothly and the grinding proceed steadily;

[0006] The drive motor is mounted on the bottom plate; a rubber sleeve is provided at the motor shaft end to prevent the sand belt from being damaged during high-speed operation; the drive motor is a three-phase asynchronous motor, and an 11KW variable frequency motor is selected to provide forward and reverse driving force to ensure that the grinding wheel rotates forward and reverse so that the sand belt contacted by the rubber roller can be ground up and down. The drive motor is used as an active device to drive the sand belt to run at high speed;

[0007] The fan-shaped bracket is set on the bottom plate according to the actual position on site, the running direction of the rubber roller to be ground and the moving direction of the grinder frame during the grinding process; the fan-shaped bracket serves as a support for the sanding belt and the rubber roller; the support arm is horizontally connected to the midpoint of the fan-shaped bracket, and 5 equidistant bolt holes are set at the end where the support arm is connected to the fan-shaped bracket; the bracket support arm is connected to the driving slide rail, and the other end of the driving slide rail is matched with the positioning cylinder. The first function is to facilitate the position adjustment of the fan-shaped bracket support arm, and the second is to better fix the fan-shaped bracket to avoid the fan-shaped bracket and the sanding belt from being pressed loosely during the grinding process, causing vibration that affects the fine grinding effect; the driving slide rail is fixed on the guide frame welded to the bottom plate. The diameter of the fan-shaped bracket is 250mm-400mm; the end of the fan-shaped bracket is connected to the annular sanding belt;

[0008] The positioning cylinder has one fixed end and one movable end. The fixed end is connected to a fixed bracket welded to the bottom plate, and the movable end is connected to a driving slide rail, providing drive to ensure the single-degree-of-freedom movement of the fan-shaped frame, allowing the device to enter the working position and the offline position. The position of the device can be adjusted according to the thickness of the rubber roller, so that the sanding belt and the rubber roller maintain a suitable grinding position, thereby achieving rough and fine adjustment of the position of the fan-shaped frame.

[0009] The tensioning mechanism includes a tensioning cylinder and a tensioning roller; the tensioning cylinder is fixed above the guide frame; a multi-position steering roller is arranged above the tensioning cylinder, and two adjusting bolts are fixed on both sides of the tensioning cylinder to adjust the height of the multi-position steering roller and tighten the annular abrasive belt; the tensioning roller is arranged at both ends of the fan-shaped bracket (the ends are opened, and the tensioning roller and the rotating shaft are connected and rotated freely through bearings), providing drive to ensure the single-degree-of-freedom movement of the multi-position steering roller up and down, and adjusting the tension of the abrasive belt by adjusting the change of the up and down positions, so that the abrasive belt and the coating rubber roller to be finely ground maintain a suitable grinding force;

[0010] The multi-position steering roller can effectively control the deviation of the abrasive belt during operation by adjusting the tightness of the bolts, and control the center line of the multi-position steering roller to coincide with the center line of the abrasive belt to prevent excessive deviation from affecting the grinding accuracy; the multi-position steering roller has a length of 100 mm and a diameter of 65 mm;

[0011] The annular abrasive belt contacts and rubs against the coated rubber roller to be finely ground, thereby achieving the goal of simultaneous rough grinding and fine grinding of the machine body;

[0012] The electrical system of the device mainly includes control components such as frequency converter, relay, conversion switch and matching buttons, which realizes the linkage function of the grinder's own sanding belt fine grinding.

[0013] Beneficial effects of the utility model:

[0014] The utility model greatly reduces or even eliminates the "knife mark" (roller mark) defect, reduces the counterfeit products of this type, ensures the stable operation of the unit, increases the output of the unit, and improves the operating efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of the practical high-precision rubber roller grinding device.

[0016] In the figure: 1. bottom plate, 2. driving motor, 3. adjusting cylinder, 4. annular sanding belt, 5. driving slide rail, 6. guide frame, 7. tensioning cylinder, 8. multi-position steering roller, 9. fan-shaped bracket, 10. tensioning roller, 11. coating rubber roller. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solution and advantages of the embodiment of the present disclosure clearer, the technical solution of the embodiment of the present disclosure will be clearly and completely described below in conjunction with the drawings of the embodiment of the present disclosure. The embodiments described below with reference to the drawings are exemplary and are intended to be used to explain the present utility model, and cannot be understood as limiting the present utility model. Any modifications, equivalent replacements or improvements made within the spirit and principles of the present utility model should be included in the scope of the claims of the present utility model. Anything not described in detail in the technical solution is a known technology.

[0018] like Figure 1 As shown, the utility model provides a device for high-precision rubber roller grinding, comprising a base plate 1, a driving motor 2, a driving slide rail 5, a fan-shaped bracket 9, a positioning cylinder 3, a tensioning mechanism, a multi-position steering roller 8, and an annular sanding belt 4; the tensioning mechanism comprises a tensioning cylinder 7 and a tensioning roller 10; a guide frame 6 is provided on the base plate, the driving slide rail 5 is fixed through the guide frame, and one end of the driving slide rail 5 is connected to the positioning cylinder 3; the other end of the driving slide rail 5 is connected to the fan-shaped bracket 9, and the upper and lower ends of the fan-shaped bracket 9 are respectively provided with tensioning rollers 10, and the position of the tensioning roller 10 is adjusted by the driving slide rail 5; the annular sanding belt 4 is directly sleeved on the driving wheel of the driving motor 2, the annular sanding belt 4 bypasses the multi-position steering roller 8 and two tensioning rollers 10 to form a circle, the annular sanding belt 4 is tightened by the tensioning mechanism, and the annular sanding belt located between the two tensioning rollers 10 contacts with the coating rubber roller 11 to be finely ground.

[0019] Furthermore, the bottom plate 1 is fixed to the head of the original grinding machine frame, 100mm-150mm away from the grinding wheel fixing frame, as a base plate of the fine grinding device; further, the bottom plate 1 is a 600mm*800m*10mm carbon steel plate; the bottom plate is connected to the grinding machine by bolts to ensure the stability of the device, reduce the vibration of the device, and make the sanding belt move smoothly and the grinding proceed steadily;

[0020] The drive motor 2 is installed on the bottom plate surface; a rubber sleeve is provided at the motor shaft end to prevent the sand belt from being damaged during high-speed operation; the drive motor is a three-phase asynchronous motor, and an 11KW variable frequency motor is selected to provide forward and reverse driving force to ensure that the grinding wheel rotates forward and reverse so that the sand belt contacted by the rubber roller can be ground up and down. The drive motor is used as an active device to drive the sand belt to run at high speed;

[0021] The fan-shaped bracket 9 is arranged on the bottom plate according to the actual position on site, the running direction of the coating rubber roller 11 to be finely ground and the traveling direction of the grinding machine frame during the grinding process. The midpoint of the fan-shaped bracket is connected to the support arm in the horizontal direction, and the other end of the fan-shaped bracket support arm is matched with the driving slide rail 5, and the driving slide rail is fixed together with the guide frame 6 welded on the bottom plate; that is, the fan-shaped bracket serves as a support for the sanding belt and the rubber roller, the middle part of the fan-shaped bracket is connected to the support arm, and 5 equidistant bolt holes are arranged at the end where the support arm and the fan-shaped bracket are connected; the driving slide rail is matched with the positioning cylinder (the positioning cylinder is used to control the driving slide rail), which has the functions of facilitating the adjustment of the position of the fan-shaped bracket support arm and better fixing the fan-shaped bracket to avoid the fan-shaped bracket and the sanding belt being pressed loosely during the grinding process, causing the fan-shaped bracket to bounce and affect the fine grinding effect; the diameter of the fan-shaped bracket is 250mm-400mm; the end of the fan-shaped bracket is connected to the annular sanding belt;

[0022] One end of the position adjustment cylinder 3 is connected to a fixed bracket welded to the bottom plate, and the other end is a movable end connected to the driving slide rail 5, providing drive to ensure the single-degree-of-freedom movement of the fan-shaped frame, allowing the device to enter the working position and the offline position, and the position of the device can be adjusted according to the different coarseness of the coated rubber roller 11 to be finely ground, so that the sanding belt and the rubber roller maintain a suitable grinding position, and the rough adjustment and fine adjustment of the position of the fan-shaped frame can be achieved;

[0023] The tensioning mechanism includes a tensioning cylinder 7 and a tensioning roller 10; the tensioning cylinder is fixed above the guide frame 6; the tensioning cylinder is connected to the multi-position steering roller to contact the abrasive belt, and further tightens the annular abrasive belt; specifically, a multi-position steering roller 8 is arranged above the tensioning cylinder 7, and two adjusting bolts are fixed on both sides of the tensioning cylinder to adjust the height of the multi-position steering roller 8 and tighten the annular abrasive belt 4; the tensioning roller 10 is arranged at the tail of the fan-shaped bracket, providing drive to ensure the single-degree-of-freedom movement of the multi-position steering roller up and down, and adjusting the tension of the abrasive belt by adjusting the change of the up and down position (the annular abrasive belt is loose as a whole after being put on the machine, and the up and down positions of the multi-position steering roller need to be adjusted by the tensioning cylinder to tighten the abrasive belt), so that the appropriate grinding force is maintained between the abrasive belt and the coating rubber roller 11 to be finely ground. Holes are opened at the two ends of the fan-shaped bracket, and the tensioning roller and the rotating shaft are connected and rotated freely through bearings.

[0024] The multi-position steering roller 8 can effectively control the deviation of the abrasive belt during operation by adjusting the tightness of the bolts, and control the center line of the multi-position steering roller to coincide with the center line of the abrasive belt to prevent excessive deviation from affecting the grinding accuracy; the multi-position steering roller has a length of 100 mm and a diameter of 65 mm;

[0025] The annular abrasive belt 4 contacts and rubs against the coated rubber roller 11 to be finely ground, so as to achieve the goal of simultaneous rough grinding and fine grinding of the machine body;

[0026] The electrical system of the device mainly includes control components such as frequency converter, relay, conversion switch and matching buttons, which realizes the linkage function of the grinder's own sanding belt fine grinding.

[0027] The implementation effect of the utility model is as follows: after the coarse grinding wheel has ground the rubber roller to be ground, the high-speed running rubber roller and the high-speed running fine grinding machine abrasive belt rotate in the opposite direction to achieve the effect of eliminating the grinding wheel knife mark on the roller surface; the tensioning roller and the adjusting cylinder adjust their positions to achieve the effect of fine grinding of the abrasive belt and rubber rollers with different roller diameters.

[0028] The abrasive belt fine grinding device is perfectly matched with the original grinding wheel grinder device, ensuring the grinding accuracy and surface roughness of the rubber roller, eliminating the roller pattern defects that occur during the coating process of the strip steel coating liquid, reducing the frequency of roller replacement and shutdown, and realizing stable and efficient operation of the unit.

Claims

1. A device for high-precision rubber roller grinding, characterized in that: It includes a base plate, a driving motor, a fan-shaped bracket, a positioning cylinder, a tensioning mechanism, a multi-position steering roller, and an annular abrasive belt; the tensioning mechanism includes a tensioning cylinder and a tensioning roller; a guide frame is provided on the base plate, a driving slide rail is fixed through the guide frame, and one end of the driving slide rail is connected to the positioning cylinder; the other end of the driving slide rail is connected to the fan-shaped bracket, and tensioning rollers are provided at the upper and lower ends of the fan-shaped bracket, and the position of the tensioning roller is adjusted by the driving slide rail; the annular abrasive belt is directly sleeved on the driving wheel of the driving motor, and the annular abrasive belt passes around the multi-position steering roller and two tensioning rollers to form a circle, and the two tensioning mechanisms tighten the annular abrasive belt, and the annular abrasive belt located between the two tensioning rollers contacts the coating rubber roller to be finely ground.

2. The high-precision rubber roller grinding device according to claim 1 is characterized in that: The bottom plate is fixed on the head of the original grinding machine stand, 100mm-150mm away from the grinding wheel fixing frame, and serves as the base plate of the fine grinding equipment; the bottom plate is a 600mm*800m*10mm carbon steel plate; the driving motor is installed on the bottom plate; the guide frame and the bottom plate are welded as a whole.

3. The high-precision rubber roller grinding device according to claim 1 is characterized in that: The shaft end of the driving motor is provided with a rubber sleeve. The driving motor is a three-phase asynchronous motor. An 11KW variable frequency motor is selected to provide forward and reverse driving force to ensure that the grinding wheel rotates forward and reverse so that the annular sanding belt contacted by the rubber roller can be ground up and down. The driving motor is used as an active device to drive the annular sanding belt to run at high speed.

4. The high-precision rubber roller grinding device according to claim 1 is characterized in that: The fan-shaped bracket serves as a support for the annular abrasive belt, with the support arm horizontally connected at its midpoint, and 5 equidistant bolt holes are set at the end where the support arm is connected to the fan-shaped bracket; the bracket support arm is connected to the driving slide rail, and the other end of the driving slide rail is matched with the positioning cylinder. Its functions are to facilitate the position adjustment of the fan-shaped bracket support arm and to better fix the fan-shaped bracket to avoid the fan-shaped bracket and the abrasive belt from being loosely pressed together during the grinding process, causing vibration and affecting the fine grinding effect; the driving slide rail is fixed on the guide frame.

5. The high-precision rubber roller grinding device according to claim 1 is characterized in that: One end of the positioning cylinder is connected to a fixed bracket welded to the bottom plate, and the other end is connected to a driving slide rail, providing drive to ensure the single-degree-of-freedom movement of the sector frame, thereby achieving rough and fine adjustment of the position of the sector frame.

6. The high-precision rubber roller grinding device according to claim 1 is characterized in that: The tensioning cylinder is fixed above the guide frame; multiple steering rollers are arranged above the tensioning cylinder, and two adjusting bolts are fixed on both sides of the tensioning cylinder to adjust the height of the multiple steering rollers and tighten the annular abrasive belt; the tensioning rollers are arranged at both ends of the fan-shaped bracket, and the annular abrasive belt is fixed on the tensioning rollers.

7. The high-precision rubber roller grinding device according to claim 1 is characterized in that: The multi-position steering roller can effectively control the deviation of the abrasive belt during operation by adjusting the tightness of the bolts, and control the center line of the multi-position steering roller to coincide with the center line of the abrasive belt to prevent excessive deviation from affecting the grinding accuracy; the multi-position steering roller has a length of 100 mm and a diameter of 65 mm.

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