Abrasive belt sanding device

Abstract

The utility model discloses an abrasive belt sanding device which comprises an abrasive belt, a driving grinding roller, a driven grinding roller and a cantilever spacer, the driven grinding roller is provided with a fixed end and a movable end, the fixed end of the driven grinding roller is rotationally installed on the cantilever spacer through a bearing, and the movable end of the driven grinding roller is installed on the cantilever spacer through a deviation rectifying mechanism; the deviation rectifying mechanism comprises a first rotating arm and a second rotating arm, the movable end of the driven grinding roller is installed at one end of the first rotating arm, the other end of the first rotating arm is connected with the middle of the second rotating arm through a first rotating shaft, and one end of the second rotating arm is installed on the cantilever spacer through a second rotating shaft. A deviation correcting air cylinder used for driving the first rotating arm to rotate is installed on the cantilever supporting baffle. The driven grinding roller is provided with the movable end and the fixed end, and the movable end is provided with the deviation rectifying mechanism, so that the deviation rectifying amplitude is small, the deviation rectifying precision is high, and the deviation rectifying effect is good; and by arranging the first rotating arm and the second rotating arm, the flexibility of the movable end of the driven grinding roller is high.

Description

Technical Field

[0001] The utility model relates to textile equipment, in particular to an abrasive belt sanding device. Background Art

[0002] The abrasive belt in the existing abrasive belt sanding machine is stretched by two supporting rollers. Since the axis between the supporting rollers cannot ensure consistency, the abrasive belt deviates during movement, thereby affecting the sanding effect of the fabric surface. The deviation correction of the existing abrasive belt sanding machine is usually controlled when the cloth is fed, but no attention is paid to the deviation correction of the abrasive belt. Now the technology discloses a utility model with application number CN202021628221.0 and name of a deviation correction and adjustment device for an oil grinder. The deviation correction of the device is achieved through a deviation correction photoelectric sensor, a deviation correction controller and a motor. Although the linear motor has high precision, if the motor is used for direct deviation correction, the movement amplitude is too large. Under the condition of rapid movement of the abrasive belt, a good deviation correction effect cannot be guaranteed. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a sanding belt grinding device with reasonable design, simple structure and good tensioning and deviation correction effect under the condition of high-speed operation of the sanding belt, in view of the deficiencies in the prior art.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A sanding belt grinding device, the mechanism comprises a sanding belt, an active grinding roller and a passive grinding roller supporting the sanding belt, and a cantilever support for mounting the active grinding roller and the passive grinding roller, the two ends of the active grinding roller are mounted on the cantilever support through bearings, and the passive grinding roller is characterized in that the passive grinding roller is provided with a fixed end and a movable end, the fixed end of the passive grinding roller is rotatably mounted on the cantilever support through a fixed rotary arm, the movable end of the passive grinding roller is mounted on the cantilever support through a deviation correction mechanism, and a sanding drive mechanism is mounted on one end of the active grinding roller;

[0006] The correcting mechanism includes a first swing arm arranged between the passive grinding roller and the cantilever support and a second swing arm arranged between the first swing arm and the cantilever support, the movable end of the passive grinding roller is installed at one end of the first swing arm, the other end of the first swing arm is connected to the middle part of the second swing arm through the first rotating shaft, and one end of the second swing arm is installed on the cantilever support through the second rotating shaft. A connecting seat is provided on one side of the first swing arm close to the passive grinding roller, and a correcting cylinder connected to the connecting seat for driving the first swing arm to rotate is installed on the cantilever support. The correcting cylinder drives the first swing arm to rotate through the connecting seat, thereby driving the movable end of the passive grinding roller to lift or fall, so as to realize the correction of the sand belt. During the correction process of the sand belt, the distance between the axial centers of the two ends of the active grinding roller and the passive grinding roller is always kept equal, that is, during the lifting or falling process of the movable end of the passive grinding roller, the two ends of the active grinding roller and the passive grinding roller are always aligned and parallel.

[0007] The technical problem to be solved by the utility model can also be achieved through the following technical solution: a synchronous tensioning mechanism is installed between the fixed end and the movable end of the passive grinding roller to make the two ends of the passive grinding roller rotate synchronously to tighten the sand belt.

[0008] The technical problem to be solved by the utility model can also be achieved through the following technical scheme: a synchronous tensioning mechanism is installed between the fixed end of the passive grinding roller and the second swing arm to make the two ends of the passive grinding roller rotate synchronously to tighten the sand belt; the synchronous tensioning mechanism includes a synchronous rod arranged parallel to the passive grinding roller; the two ends of the synchronous rod are installed on the fixed end of the passive grinding roller and the second swing arm through a transmission plate; a tensioning cylinder for driving the second rotating shaft to rotate is installed on the cantilever support.

[0009] The technical problem to be solved by the utility model can also be achieved through the following technical solution: a support seat connected to the frame of the abrasive belt sanding machine is provided in the middle of the cantilever support.

[0010] The technical problem to be solved by the utility model can also be achieved through the following technical scheme: the grinding drive mechanism includes a driving motor installed on the cantilever support, a driving wheel is installed on the output shaft of the driving motor, a driven wheel is installed on the roller shaft of the active grinding roller, and the driven wheel is connected to the driving wheel through a transmission belt.

[0011] Compared with the prior art, the utility model sets one end of the passive grinding roller as a movable end and the other end as a fixed end, and sets a correction mechanism at the movable end. The correction is achieved by lifting and dropping one end of the passive grinding roller. The correction amplitude is small, the correction accuracy is high, and the correction effect is good. By setting the first swing arm and the second swing arm, the movable end of the passive grinding roller has high flexibility, good adjustment adaptability, and good correction effect. The sanding belt grinding device described in the utility model is particularly suitable for the correction of the sanding belt under high-speed working conditions. It has high correction accuracy, good use effect, and strong flexibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a structural diagram of the abrasive belt sanding device of the utility model;

[0013] Figure 2 for Figure 1 Side view of

[0014] Figure 3 for Figure 2 A partial enlarged view of .

[0015] In the figure: 1-active grinding roller, 2-cantilever support, 3-tensioning cylinder, 4-passive grinding roller, 5-correction cylinder, 6-support seat, 7-transmission plate, 8-passive grinding roller fixed end, 9-synchronizing rod, 10-passive grinding roller movable end, 11-first swing arm, 12-second swing arm, 13-first rotating shaft, 14-second rotating shaft, 15-connecting rod, 16-connecting seat. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0017] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred system or element must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0018] Reference Figure 1-3 , a sanding belt grinding device, the mechanism includes a sanding belt, an active grinding roller 1 and a passive grinding roller 4 supporting the sanding belt, and a cantilever support 2 for mounting the active grinding roller 1 and the passive grinding roller 4, the two ends of the active grinding roller 1 are mounted on the cantilever support 2 through bearings, the passive grinding roller 4 is provided with a fixed end 8 and a movable end 10, the fixed end 8 of the passive grinding roller is rotatably mounted on the cantilever support 2 through a fixed rotary arm, that is, the fixed end of the passive grinding roller is arranged at one end of the fixed rotary arm, the middle part of the fixed rotary arm is mounted on the cantilever support through a rotating shaft, the following synchronization rod is mounted at the other end of the fixed rotary arm, the movable end 10 of the passive grinding roller is mounted on the cantilever support 2 through a deviation correction mechanism, and a sanding drive mechanism is installed at one end of the active grinding roller 1;

[0019] The deflection correction mechanism comprises a first swing arm 11 arranged between the passive grinding roller 4 and the cantilever support 2 and a second swing arm 12 arranged between the first swing arm 11 and the cantilever support 2. The active end 10 of the passive grinding roller is installed at one end of the first swing arm 11. The other end of the first swing arm 11 is connected to the middle of the second swing arm 12 through a first rotating shaft 13. One end of the second swing arm 12 is installed on the cantilever support 2 through a second rotating shaft 14. A connecting seat 16 is provided on one side of the first swing arm 11 close to the passive grinding roller 4. A deflection correction cylinder 5 connected to the connecting seat 16 for driving the first swing arm to rotate is installed on the cantilever support 2. The extension and retraction of the deflection correction cylinder 5 drives the first swing arm 1 through the connecting seat 16. 1 rotates around the first rotating shaft 13, thereby driving the active end of the passive grinding roller to lift or fall, thereby realizing the deviation correction of the sand belt, thereby driving the active end of the passive grinding roller to lift or fall, thereby realizing the deviation correction of the sand belt, during the deviation correction of the sand belt, the distance between the axis centers of the active grinding roller and the passive grinding roller at both ends is always kept equal, that is, during the lifting or falling of the active end of the passive grinding roller, the two ends of the active grinding roller and the passive grinding roller are always aligned and parallel, when the active end of the passive grinding roller is lifted to the highest position or falls to the lowest position, the axes of the active grinding roller and the passive grinding roller are always parallel, and the distance between the axis centers at both ends is always equal; the connecting seat 16 is connected to the piston rod of the deviation correction cylinder through the connecting rod 15, thereby realizing transmission.

[0020] A synchronous tensioning mechanism is installed between the fixed end 8 of the passive grinding roller 4 and the second swing arm 12 to make the two ends of the passive grinding roller 4 rotate synchronously to tighten the sand belt. The synchronous tensioning mechanism includes a synchronization rod 9 arranged parallel to the passive grinding roller. The two ends of the synchronization rod 9 are installed on the fixed end 8 of the passive grinding roller 4 and the second swing arm 12 through a transmission plate 7. A tensioning cylinder 3 for driving the second rotating shaft 14 to rotate is installed on the cantilever support 2.

[0021] A support seat 6 connected to the frame of the belt sanding machine is provided in the middle of the cantilever support 2 to facilitate the installation of the entire device.

[0022] The grinding drive mechanism comprises a driving motor installed on the cantilever support 2, a driving wheel is installed on the output shaft of the driving motor, a driven wheel is installed on the roller shaft of the active grinding roller 1, and the driven wheel is connected to the driving wheel through a transmission belt.

[0023] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A sanding belt grinding device, comprising a sanding belt, an active grinding roller and a passive grinding roller supporting the sanding belt, and a cantilever support for mounting the active grinding roller and the passive grinding roller, wherein both ends of the active grinding roller are mounted on the cantilever support through bearings, and characterized in that: The passive grinding roller is provided with a fixed end and a movable end, the fixed end of the passive grinding roller is installed on the cantilever support through a fixed rotary arm, the movable end of the passive grinding roller is installed on the cantilever support through a deviation correction mechanism, and a grinding drive mechanism is installed at one end of the active grinding roller; The correcting mechanism includes a first swing arm arranged between the passive grinding roller and the cantilever support and a second swing arm arranged between the first swing arm and the cantilever support, the movable end of the passive grinding roller is installed at one end of the first swing arm, the other end of the first swing arm is connected to the middle part of the second swing arm through the first rotating shaft, and one end of the second swing arm is installed on the cantilever support through the second rotating shaft. A connecting seat is provided on one side of the first swing arm close to the passive grinding roller, and a correcting cylinder connected to the connecting seat for driving the first swing arm to rotate is installed on the cantilever support. The correcting cylinder drives the first swing arm to rotate through the connecting seat, thereby driving the movable end of the passive grinding roller to lift or fall, so as to realize the correction of the sand belt. During the correction process of the sand belt, the distance between the axial centers of the two ends of the active grinding roller and the passive grinding roller is always kept equal, that is, during the lifting or falling process of the movable end of the passive grinding roller, the two ends of the active grinding roller and the passive grinding roller are always aligned and parallel.

2. The abrasive belt sanding device according to claim 1, characterized in that: A synchronous tensioning mechanism is installed between the fixed end and the movable end of the passive grinding roller to make the two ends of the passive grinding roller rotate synchronously to tighten the sand belt.

3. The abrasive belt sanding device according to claim 2, characterized in that: A synchronous tensioning mechanism is installed between the fixed end of the passive grinding roller and the second swing arm to make the two ends of the passive grinding roller rotate synchronously to tighten the sand belt. The synchronous tensioning mechanism includes a synchronous rod arranged parallel to the passive grinding roller. The two ends of the synchronous rod are installed on the fixed end of the passive grinding roller and the second swing arm through a transmission plate. A tensioning cylinder for driving the second rotating shaft to rotate is installed on the cantilever support.

4. The belt sanding device according to claim 1, characterized in that: A support seat connected to the frame of the abrasive belt sanding machine is arranged in the middle of the cantilever support.

5. The abrasive belt sanding device according to claim 1, characterized in that: The grinding drive mechanism comprises a driving motor installed on the cantilever support, a driving wheel is installed on the output shaft of the driving motor, a driven wheel is installed on the roller shaft of the active grinding roller, and the driven wheel is connected to the driving wheel through a transmission belt.

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