CN210588652U - Broad band sander - Google Patents

Broad band sander Download PDF

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Publication number
CN210588652U
CN210588652U CN201921341404.1U CN201921341404U CN210588652U CN 210588652 U CN210588652 U CN 210588652U CN 201921341404 U CN201921341404 U CN 201921341404U CN 210588652 U CN210588652 U CN 210588652U
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CN
China
Prior art keywords
roller
driven
drive roll
tensioning
rectifying
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Active
Application number
CN201921341404.1U
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Chinese (zh)
Inventor
刘祖滨
程候越
叶之勇
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Chengdu Fanhuang Furniture Co Ltd
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Chengdu Fanhuang Furniture Co Ltd
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Priority to CN201921341404.1U priority Critical patent/CN210588652U/en
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Abstract

The utility model discloses a wide belt sander, which comprises a feeding mechanism, a fixed thickness sanding mechanism, a polishing sanding mechanism, a tensioning adjusting deviation correcting device, a case arranged outside and the fixed thickness sanding mechanism, polishing sand light mechanism all is located feeding mechanism's top and all has the interval with between the conveyer, powerful sand light mechanism, meticulous sand light mechanism all has the drive roll, there is the arch around the drive roll, driven voller and with the drive roll parallel with the drive roll, driven voller swivelling joint's support, the support is two, two supports are located the drive roll respectively, the both ends of driven voller, the upper portion of two supports is arranged in to the drive roll clamp, the lower part of two supports is arranged in to the driven voller clamp, install tensioning deviation correcting device on two supports of drive roll downside, the last portable tensioning of tensioning deviation correcting device is rectified the roller, can remove the tensile force that removes the regulation abrasive band. The utility model discloses a removal about portable tensioning roller of rectifying adjusts the tensile force, and reciprocating motion all around rectifies.

Description

Broad band sander
Technical Field
The utility model belongs to the technical field of the grinder is made and specifically relates to a broadband grinder is related to.
Background
The wide belt sander is a large-scale machine for processing plates, and is often used for grinding, thickening, polishing and other processes of the plates, so that the plates are suitable for various purposes. In the in-service use process, because the whole atress is uneven when the abrasive band is polished panel, make its abrasive band of grinder can take place the condition of skew after using a period, thereby influence the precision of panel processing, for improving above-mentioned condition, often set up drive roll and driven voller into isolating construction in some broadband grinders, the below at the drive roll independently sets up vibration mechanism, make the drive roll can vibrate in order to solve the abrasive band problem of rectifying a deviation, but vibration mechanism often the structure is complicated, it is more to need the part, and drive heavier action wheel need consume more electric power, in the long run, can increase the processing cost and the electric resource consumption of panel, and the noise that the vibration sent also does not benefit to workman's physical and mental health.
The patent with application number 201821916384.1 in the prior art discloses a solution that a deviation rectifying device is arranged below a driving roller, the deviation rectifying device comprises a first cylinder, a second cylinder and a deviation rectifying roller, the left end and the right end of the deviation rectifying roller are respectively fixedly connected with piston rods of the first cylinder and the second cylinder, the deviation rectifying roller is in contact with an abrasive belt, and the cylinder drives the deviation rectifying roller to extend an axis to reciprocate so as to adjust the position deviation of the abrasive belt.
Although the deviation of the abrasive belt is solved by the mode, the tension of the abrasive belt is changed when the deviation correcting roller wheel is contacted with the abrasive belt, meanwhile, the abrasive belt is loosened after being used for a long time, the sanding effect is inevitably changed due to the change of the tension, and the cost is too high if the abrasive belt is directly replaced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a broadband grinder has the tensile force of adjusting the abrasive band between drive roll and the driven voller on the grinder and the function of adjustment abrasive band skew.
The utility model discloses an above-mentioned function can be realized through following technical scheme:
a broadband sander comprises a rack box body, a feeding mechanism, a fixed-thickness sanding mechanism, a polishing sanding mechanism and a tensioning deviation correcting device, wherein the feeding mechanism transversely penetrates through the rack box body and is installed on the fixed-thickness sanding mechanism and the polishing sanding mechanism, the feeding direction of the feeding mechanism is sequentially arranged in the rack box body, the fixed-thickness sanding mechanism and the polishing sanding mechanism respectively comprise two brackets, a driving roller, a driven roller and an annular sanding belt, the brackets are vertically arranged at intervals, the driving roller and the driven roller are horizontally arranged at intervals, the two ends of the driving roller and the driven roller are respectively and rotatably connected onto the two brackets, the annular sanding belt is sleeved on the driving roller and the driven roller, the tensioning deviation correcting device is arranged on one side below the driving roller and comprises a deviation correcting roller, a cylinder and a sanding belt tensioning adjusting assembly, the roller is positioned on the inner side of the annular sanding belt, the deviation correcting surface of the outer circle of the, abrasive band tensioning adjusting part includes two fixed blocks, sets up the horizontal spout on the fixed block, the movable block of installing in horizontal spout and making the movable block fix a position the stopper in horizontal spout, movable block and the cylinder body fixed connection of cylinder.
Through adopting above-mentioned technical scheme, the panel that will process is in the frame box from the feeding mechanism pay-off, in proper order through deciding thick grinder structure, polishing grinder structure, tensioning deviation correcting device's cylinder piston motion drives the running roller motion of rectifying and realizes rectifying to the abrasive band, after working a period, the tensile force of abrasive band reduces, through with the movable block in horizontal spout to the direction removal of keeping away from the connection face between drive roll axis and the driven voller axis, the rethread stopper carries on spacingly, make the abrasive band improve the tensile force between drive roll and driven voller, guarantee the machining precision of deciding thick grinder and polishing grinder, the effect of sand light has been improved.
The utility model discloses further set up to: the top of fixed block is seted up the cavity of a plurality of vertical directions, and is a plurality of the cavity is followed the length direction of horizontal spout arrange and with horizontal spout link up, each the cavity internalization cartridge have the stopper, the bottom activity of each stopper stretches into in the horizontal spout and be provided with the incline plane of the direction orientation of being connected the face between drive roll axis and the driven voller axis.
Through adopting above-mentioned technical scheme, through the inclined plane setting on the stopper for when the movable block moves in the direction of keeping away from the drive roll in horizontal spout, can drive the stopper and upwards move in the cavity, when adjusting to suitable position, the stopper of movable block top is located the movable block top, and other stoppers drop under the action of gravity and are located horizontal spout, make the movable block can not be to the direction motion of being close to the drive roll, realized adjusting the tensioning on abrasive band.
The utility model discloses further set up to: the side wall of the fixed block facing the deviation rectifying roller is provided with a vertical opening penetrating through the cavity, and the limiting block facing the deviation rectifying roller is provided with a lug movably arranged on the vertical opening in a penetrating mode.
By adopting the technical scheme, the fixing block is provided with the vertical opening, the limiting block is provided with the movable lug penetrating the vertical opening, and when the deviation rectifying roller needs to be reset after the new abrasive belt is replaced, the deviation rectifying roller moves upwards by lifting the lug and then moves towards the driving roller, so that the operation is convenient.
The utility model discloses further set up to: tensioning deviation correcting device still includes a plectrum, and the plectrum includes that the cross-section is square connecting rod and the horizontal pole of vertical fixation near connecting rod both ends department respectively, be provided with corresponding vertical recess on deciding thick sand light mechanism, the respective two supports of polishing sand light mechanism respectively, the vertical recess of dress on two supports is worn in the activity of corresponding respectively at the connecting rod both ends, the horizontal pole is to fixed block direction overhang and be located each the below of lug.
Through adopting above-mentioned technical scheme, only need stir the plectrum, stir the lug through the plectrum and can take up all lugs for all stoppers with the lug is rebound, thereby lets the movable block can directly move to the position nearest with the moving roll axis distance in horizontal spout.
The utility model discloses further set up to: the drive roll and the driven roll of the fixed-thickness sanding mechanism are respectively provided with a first drive roll and a first driven roll, the diameter of the first driven roll is larger than that of the first drive roll, and the circle centers of the sections of the first drive roll and the first driven roll are on the same vertical line.
Through adopting above-mentioned technical scheme, the diameter of first driven voller is great for panel machined surface is less angle with the abrasive band in the process, the effect of horizontal sand light of having produced as far as possible, makes rough machining more thorough.
The utility model discloses further set up to: the polishing sanding mechanism is characterized in that the number of the driving rollers is one, namely the second driving roller, the number of the driven rollers is two, namely the second driven roller and the third driven roller, the second driven roller and the third driven roller are symmetrically positioned on two sides of a vertical plane where a central axis of the driving roller is positioned respectively, and the first diameter of the second driven roller and the first diameter of the third driven roller enable the part, between the second driven roller and the third driven roller, of the abrasive belt to be arranged in the horizontal direction.
Through adopting above-mentioned technical scheme, will polish sand light mechanism from the driving wheel and set up to two, and the diameter is unanimous and is in same horizontal plane simultaneously for the abrasive band is located the part horizontal direction setting between second driven voller and the third driven voller, and is parallel with the panel of pay-off on feeding mechanism simultaneously, can carry out the fine processing to panel through two dual processes from the driving wheel, improves the accuracy nature of work.
The utility model discloses further set up to: and two sides below the second driving roller are respectively provided with the tensioning deviation rectifying device.
Through adopting above-mentioned technical scheme, the tensioning deviation correcting device in the polishing sand light mechanism sets up two, and is corresponding with two driven vollers of polishing sand light mechanism, rectifies the abrasive band between each driven voller and the drive roll to improve the effect of rectifying, two tensioning deviation correcting devices also make the scope of tensile force regulation widen simultaneously.
The utility model discloses further set up to: the drive rolls of the fixed-thickness sanding mechanism and the polishing sanding mechanism are provided with bulges radially outwards on the outer circular surfaces close to the two ends respectively, and the bulges at the two ends of each drive roll are opposite in direction.
By adopting the technical scheme, in the rotation process of the abrasive belt, each driving roller is always provided with one protrusion which is abutted against the inner side surface of the abrasive belt, namely, the two protrusions are alternately contacted with the abrasive belt in the rotation process of the driving roller, so that the abrasive belt alternately has a height difference between a front height and a rear height, and under the action of force, the abrasive belt continuously slides and is adjusted, and the abrasive belt is further adjusted to have a position offset.
To sum up, the utility model discloses a beneficial technological effect does:
the panel that will process is in the frame box from the pay-off of feeding mechanism pay-off, in proper order through thickness sanding mechanism, polishing sanding mechanism, tensioning deviation correcting device's cylinder piston motion drives the running roller motion of rectifying and realizes rectifying a deviation to the abrasive band, after work a period, the tensile force of abrasive band reduces, through with the movable block in horizontal spout to keeping away from the direction removal of the connection face between drive roll axis and the driven voller axis, the rethread stopper is spacing, make the abrasive band improve the tensile force between drive roll and driven voller, guarantee the machining precision of thickness-fixed grinder and polishing grinder, the effect of sand light has been improved. The protrusions are arranged on the driving roller, so that the abrasive belt is adjusted in position deviation, and the deviation rectifying effect is improved.
Drawings
FIG. 1 is an external view of an embodiment;
FIG. 2 is a cross-sectional view of the structure of FIG. 1;
FIG. 3 is a block diagram of the fixed thickness sanding mechanism of FIG. 2;
FIG. 4 is a block diagram of the polishing and sanding mechanism of FIG. 2;
FIG. 5 is a block diagram of the tension deviation correcting device of FIG. 2;
FIG. 6 is a block diagram of the belt tensioning adjustment assembly of FIG. 5;
fig. 7 is a structural view of the first drive roller of fig. 3.
Description of reference numerals: 1. a chassis; 2. a fixed-thickness sanding mechanism; 21. a first drive roll; 22. a first driven roller; 3. a polishing and sanding mechanism; 31. a second drive roll; 32. a second driven roller; 33. a third driven roller; 4. tensioning a deviation correcting device; 41. a tension adjustment assembly; 411. a fixed block; 412. a movable block; 413. a limiting block; 42. a deviation rectifying roller; 43. a cylinder; 5. a feeding mechanism; 51. a feed belt; 6. a support; 7. a shifting sheet; 8. an annular abrasive belt.
Detailed Description
Refer to fig. 1 and fig. 2 and show, for the utility model discloses a broadband grinder, including frame box 1, feeding mechanism 5, decide thick grinder to construct 2, polishing grinder constructs 3 and tensioning deviation correcting device 4, set up corresponding pan feeding mouth and discharge gate on the relative both sides lateral wall of frame box 1 respectively, feeding mechanism 5 includes the pay-off area 51 of level setting and the driving motor who drives the pay-off area 51 motion, pay-off area 51 transversely passes pan feeding mouth and discharge gate, make panel can pass through in pay-off area 51 gets into frame box 1 from the pan feeding mouth, and carried out from the discharge gate, feeding mechanism 5 is more common structure, specific structure is no longer repeated here.
Referring to fig. 2, the fixed-thickness sanding mechanism 2 and the polishing sanding mechanism 3 are sequentially arranged in the frame box body 1 along the feeding direction of the feeding belt 51, the fixed-thickness sanding mechanism 2 and the polishing sanding mechanism 3 respectively comprise two supports 6, a driving roller, a driven roller and an annular abrasive belt 8 which are vertically arranged at a certain distance, the driving roller and the driven roller are horizontally arranged at a certain distance from top to bottom, the two ends of the driving roller and the two ends of the driven roller are respectively rotatably connected onto the two supports 6, the annular abrasive belt 8 is sleeved on the driving roller and the driven roller, and the tensioning deviation correcting device 4 is arranged on one side below the driving roller and fixedly connected with.
Referring to fig. 2, 3 and 7, the fixed-thickness sanding mechanism 2 has a first drive roller 21 and a first driven roller 22, the cylindrical surfaces of the first drive roller 21 near the front and rear bottom surfaces respectively have a protrusion protruding from the cylindrical surface, the two protrusions face away from the axis of the first drive roller 21 and have opposite directions, the driven roller is the first driven roller 22, the bracket 6 is the first bracket 6, the diameter of the first driven roller 22 is greater than that of the first drive roller 21, the centers of the cross sections of the first drive roller 21 and the first driven roller 22 are on the same straight line, the left or right part of the first drive roller 21 is provided with a tensioning deviation rectifying device 4, and the outer sides of the first drive roller 21, the first driven roller 22 and the tensioning deviation rectifying device 4 are wrapped with an annular abrasive belt 8.
Referring to fig. 2, 4 and 7, the polishing sanding mechanism 3 has one driving roller, two driven rollers, namely a second driving roller 31, a second driven roller 32 and a third driven roller 33, the second driven roller 32 and the third driven roller 33 are symmetrically located on two sides of a vertical plane where the central axis of the driving roller is located, and the sheet material can be finely processed in a dual process, the cylindrical surfaces of the second driving roller 31 and the first driving roller 21, which are close to the front and rear bottom surfaces, are respectively provided with a protrusion protruding from the cylindrical surface, the two protrusions face away from the axis of the first driving roller 21 and are opposite in direction, two sides below the second driving roller 31 are respectively provided with one tensioning deviation rectifying device 4, which corresponds to the two driven rollers of the polishing sanding mechanism 3 one by one to rectify the deviation of each driven roller, and the tensioning deviation rectifying devices 4 of the second driving roller 31, the second driven roller 32, the third driven roller 33 and the second driven roller 32 are respectively provided with the tensioning, An annular abrasive belt 8 is wrapped outside the tensioning deviation correcting device 4 of the third driven roller 33.
Referring to fig. 5 and 6, the tensioning and deviation correcting device 4 includes a deviation correcting roller 42, air cylinders 43 disposed at two ends of the deviation correcting roller 42, and an abrasive belt tensioning and adjusting assembly 41, the deviation correcting roller 42 is located at the inner side of the annular abrasive belt 8, the distance from the center of the cross section of the deviation correcting roller 42 to the straight line formed by the center of the cross section of the driving roller and the center of the cross section of the driven roller is greater than or equal to the radius of the driven roller, so that the outer circumferential surface of the deviation correcting roller 42 is in contact with the inner sidewall of the annular abrasive belt 8, the abrasive belt tensioning and adjusting assembly 41 includes two fixed blocks 411, a movable block 412 and a limit block 413 for positioning the movable block 412 in a transverse sliding slot, the movable block 412 is fixedly connected to the cylinder bodies of the air cylinders 43 disposed at two ends of the deviation correcting roller 42, the two fixed blocks 411, the bottom of the side surface of the fixed block 411 is provided with a strip-shaped groove, the upper top plate of the strip-shaped groove is provided with cavities in the height direction in parallel, the bottom of the strip-shaped groove is provided with a sliding groove in the length direction, the movable block 412 is arranged in the strip-shaped groove, the bottom surface of the movable block 412 extends to form a protrusion to be inserted into the sliding groove of the strip-shaped groove, the surface of the cavity facing to the other corresponding fixed block 411 is provided with an opening in the height direction, the limiting block 413 is arranged in the parallel cavity formed by the upper top plate of the strip-shaped groove, one part of the limiting block extends into the lower groove, the part of the limiting block extending into the lower groove is provided with an inclined surface, the inclined surface faces to the axis of the driven roller clamped by the bracket 6 for installing the fixed block 411, the surface facing to the axis direction of the deviation-correcting roller 42, a shifting piece 7 is arranged under the convex block, the shifting piece 7 consists of a connecting rod along the axial direction of the roller of the tensioning deviation correcting roller and two cross rods along the length direction of the fixed block 411, the connecting rod is fixed on a sliding groove in the vertical direction formed on the bracket 6, the cross rods cross the convex blocks of the limiting blocks 413, the cross rods and the connecting rod are positioned under the convex blocks and contacted with the convex blocks on the same horizontal plane, the deviation correcting roller 42 can move left and right in a lower groove of the fixed block 411 along with a movable block 412 connected with an air cylinder 43 and the air cylinder 43, and the deviation correcting roller 42 is parallel to the driving.
The implementation principle of the above embodiment is as follows: before processing a plate, the movable block 412 on the fixed block 411 moves on the transverse sliding groove of the fixed block 411, the position of the deviation correcting roller 42 is adjusted so as to change the tension of the annular abrasive belt 8 sleeved outside the driving roller, the driven roller and the deviation correcting roller 42, when the movable block 412 moves in the transverse sliding groove, the two conditions are divided into two conditions, namely, the movable block is close to the driving roller and the movable block is far away from the driving roller, because the inclined plane inclines towards the position between the central axis of the driving roller and the central axis of the driven roller, namely, when the movable block 412 moves away from the driving roller, the movable block 412 drives each limit block 413 to be sequentially jacked up and lifted up in the cavity, when the movable block 412 jacks up the next limit block 413, the previous limit block 413 falls under the action of gravity so that the lower part of the limit block 413 is located in the transverse sliding groove, and one side surface of the previous limit 413 facing, the tensioning force of the abrasive belt is increased; when the tension of the abrasive belt needs to be loosened or a new abrasive belt needs to be replaced, the connecting rod is lifted, the cross rod drives the protruding blocks to move upwards along with the ascending movement of the connecting rod, the lower ends of the movable blocks 412 on the fixed block 411 are located in the cavities, namely the movable blocks 412 can move towards the direction of the driving roller, and the adjustment of the tension of the abrasive belt can be realized through the transverse movement of the movable blocks 412 in the transverse sliding grooves. The deviation correcting roller 42 is controlled by the cylinders 43 at the two ends, the cylinders 43 at the two ends work alternately to push the deviation correcting roller 42 to move left and right along the axis of the deviation correcting roller 42, so that the deviation correcting roller 42 reciprocates, the reciprocating motion of the deviation correcting roller 42 drives the abrasive belt to reciprocate along the axial direction of the driving roller, and the position deviation of the abrasive belt can be adjusted, so that the deviation correcting effect of the abrasive belt is achieved, meanwhile, the front bulge and the rear bulge on the driving wheel are in contact with the abrasive belt left and right alternately in the operation process of the driving wheel, so that the abrasive belt alternately has a height difference between the front height and the rear height, under the action of force, the abrasive belt is adjusted to slide back and forth continuously, and.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims (8)

1. The utility model provides a broadband grinder, includes frame box (1), feeding mechanism (5), decides thick grinder (2), polishing grinder (3) and tensioning deviation correcting device (4), and feeding mechanism (5) transversely run through and install on frame box (1), its characterized in that: decide thick sand light mechanism (2), polishing sand light mechanism (3) and follow the pay-off direction of feed mechanism (5) sets gradually in frame box (1), decides thick sand light mechanism (2), polishing sand light mechanism (3) and all include two support (6), drive roll, driven voller and annular abrasive band (8) of the vertical setting of certain distance in interval, the horizontal setting of certain distance in interval and respective both ends are rotatable respectively to be connected on two support (6) about drive roll and the driven voller, annular abrasive band (8) suit is on drive roll and driven voller, tensioning deviation correcting device (4) set up in one side of drive roll below, tensioning deviation correcting device (4) including the running roller (42) of rectifying, set up in cylinder (43) and the abrasive band tensioning adjusting part (41) at the running roller (42) both ends of rectifying, the running roller (42) of rectifying is located the inboard of annular abrasive band (8) and the outer disc of the running roller (42) of rectifying and the inside wall of annular abrasive band (8 Touch, abrasive band tensioning adjusting part (41) includes two fixed blocks (411), sets up the recess on fixed block (411), sets up the horizontal spout of bottom surface in the recess, slidable mounting in the horizontal spout movable block (412) and make movable block (412) in the stopper (413) of horizontal spout location, movable block (412) and cylinder body fixed connection of cylinder (43).
2. The broad belt sander as set forth in claim 1, wherein: the cavity of a plurality of vertical directions is seted up at the top of fixed block (411), and is a plurality of the cavity is followed the length direction of horizontal spout arrange and with horizontal spout link up, each the cavity internalization cartridge have stopper (413), the bottom activity of each stopper (413) stretches into in the horizontal spout and be provided with the incline plane of the incline direction orientation the direction of the connection face between drive roll axis and the driven voller axis.
3. The broad belt sander as set forth in claim 2, wherein: the side wall of the fixed block (411) facing the deviation rectifying roller (42) is provided with a vertical opening penetrating through the cavity, and the limiting block (413) facing the deviation rectifying roller (42) is provided with a convex block movably penetrating the vertical opening.
4. The broad belt sander as set forth in claim 3, wherein: tensioning deviation correcting device (4) still include a plectrum (7), plectrum (7) include that the cross-section is square connecting rod and the horizontal pole that is close to connecting rod both ends department with respectively vertical fixation, be provided with corresponding vertical recess on deciding thick sand light mechanism (2), polishing sand light mechanism (3) respective two support (6) respectively, the vertical recess of dress on two support (6) is worn in the activity respectively to the connecting rod both ends, the horizontal pole to fixed block (411) direction overhang and be located each the below of lug.
5. The broad belt sander as set forth in claim 1, wherein: the drive roll and the driven roll of the fixed-thickness sanding mechanism (2) are respectively provided with a first drive roll (21) and a first driven roll (22), the diameter of the first driven roll (22) is larger than that of the first drive roll (21), and the circle centers of the cross sections of the first drive roll (21) and the first driven roll (22) are on the same vertical line.
6. The broad belt sander as set forth in claim 1, wherein: the polishing sanding mechanism (3) is provided with two drive rollers, namely a second drive roller (31), the driven rollers are respectively a second driven roller (32) and a third driven roller (33), the second driven roller (32) and the third driven roller (33) are respectively symmetrically positioned on two sides of a vertical plane where the central axis of the drive roller is located, and the first diameter of the second driven roller (32) and the third driven roller (33) causes the abrasive belt to be positioned between the second driven roller (32) and the third driven roller (33) and form a horizontal direction.
7. The broad belt sander as set forth in claim 6, wherein: and two sides below the second driving roller (31) are respectively provided with the tensioning deviation rectifying device (4).
8. The broad belt sander of claim 5 or 6, wherein: the outer circular surfaces of the driving rollers of the fixed-thickness sanding mechanism (2) and the polishing sanding mechanism (3) close to the two ends are respectively provided with bulges outwards in the radial direction, and the bulges at the two ends of each driving roller are opposite in direction.
CN201921341404.1U 2019-08-19 2019-08-19 Broad band sander Active CN210588652U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921341404.1U CN210588652U (en) 2019-08-19 2019-08-19 Broad band sander

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921341404.1U CN210588652U (en) 2019-08-19 2019-08-19 Broad band sander

Publications (1)

Publication Number Publication Date
CN210588652U true CN210588652U (en) 2020-05-22

Family

ID=70690536

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201921341404.1U Active CN210588652U (en) 2019-08-19 2019-08-19 Broad band sander

Country Status (1)

Country Link
CN (1) CN210588652U (en)

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