US20190126426A1 - Pressing device for sanding machines - Google Patents
Pressing device for sanding machines Download PDFInfo
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- US20190126426A1 US20190126426A1 US15/801,107 US201715801107A US2019126426A1 US 20190126426 A1 US20190126426 A1 US 20190126426A1 US 201715801107 A US201715801107 A US 201715801107A US 2019126426 A1 US2019126426 A1 US 2019126426A1
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- frame
- pressing
- transmission belt
- deposited
- pressing device
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- 230000005540 biological transmission Effects 0.000 claims abstract description 59
- 230000001360 synchronised effect Effects 0.000 claims description 29
- 230000001788 irregular Effects 0.000 description 11
- 239000004576 sand Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B21/00—Machines or devices using grinding or polishing belts; Accessories therefor
- B24B21/04—Machines or devices using grinding or polishing belts; Accessories therefor for grinding plane surfaces
- B24B21/10—Machines or devices using grinding or polishing belts; Accessories therefor for grinding plane surfaces involving a rigid member, e.g. pressure bar, table, pressing or supporting the belt over substantially its whole span
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B29/00—Machines or devices for polishing surfaces on work by means of tools made of soft or flexible material with or without the application of solid or liquid polishing agents
- B24B29/005—Machines or devices for polishing surfaces on work by means of tools made of soft or flexible material with or without the application of solid or liquid polishing agents using brushes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B47/00—Drives or gearings; Equipment therefor
- B24B47/10—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces
- B24B47/12—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces by mechanical gearing or electric power
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D13/00—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor
- B24D13/02—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by their periphery
- B24D13/10—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by their periphery comprising assemblies of brushes
Definitions
- the present invention relates to a pressing device, and more particularly relates to a pressing device for sanding machines that may act with a transmission belt of a sanding machine to provide a pre-pressure and to improve the sanding quality of the sanding machine.
- a conventional sanding machine is used to sand a surface of a workpiece, and has multiple brush bars that may rotate cyclically to sand the surface of the workpiece.
- the conventional sanding machine may sand the surface of the workpiece with a consistent sanding effect by the multiple brush bars.
- the multiple brush bars of the conventional sanding machine may be deformed with the uneven and irregular plane of the workpiece without sanding the surface of the workpiece accurately, and a height difference may be formed between two adjacent brush bars to influence the smoothness of track operation of the conventional sanding machine, and this may influence the sanding quality of the conventional sanding machine.
- the workpiece with the uneven and irregular plane may need to be processed by subsequent procedures or sanded with the conventional sanding machine several times, and this will increase the time and cost of sanding the workpiece.
- the present invention provides a pressing device for sanding machines to mitigate or obviate the aforementioned problems.
- the main objective of the present invention is to provide a pressing device for sanding machines that may act with a transmission belt of a sanding machine to provide a pre-pressure and to improve the sanding quality of the sanding machine.
- the pressing device for sanding machines in accordance with the present invention is connected to a sanding machine with a transversal frame, at least one transmitting group, and at least one transmission belt, and the pressing device has a holding frame, a pressing frame, a synchronization set, and an auxiliary set.
- the holding frame is securely connected to the transversal frame to locate in an inner side of the at least one transmission belt.
- the pressing frame is securely connected to the holding frame to locate in the inner side of the at least one transmission belt, and has multiple rollers deposited on a bottom of the pressing frame and extending toward a lower half of the at least one transmission belt.
- the rollers of the pressing frame selectively abut the at least one transmission belt to rotate with the at least one transmission belt and to provide a pre-pressing force.
- FIG. 1 is a perspective view of a pressing device for sanding machines in accordance with the present invention, deposited on a sanding machine;
- FIG. 2 is an enlarged perspective view of the pressing device in FIG. 1 ;
- FIG. 3 is a side view of the pressing device in FIG. 1 ;
- FIG. 4 is another side view of the pressing device in FIG. 1 , shown with some components omitted;
- FIG. 5 is an enlarged side view in partial section of the pressing device in FIG. 1 ;
- FIGS. 6 to 8 are operational side views of the pressing device in FIG. 1 , driven by a driving device;
- FIG. 9 is an operational side view of the pressing device in FIG. 1 , shown sanding a workpiece.
- a pressing device for sanding machines in accordance with the present invention is deposited on a sanding machine 50 having two connecting boards 51 , a transversal frame 52 , two transmitting groups 55 , two transmission belts 56 , and multiple brush bars 57 .
- the two connecting boards 51 are deposited in the sanding machine at a spaced interval and face each other.
- the transversal frame 52 is deposited in the sanding machine 50 between the two connecting boards 51 , and has two connecting arms 53 and two linking arms 54 .
- the two connecting arms 53 are deposited in the sanding machine 50 at a spaced interval, face each other, and each one of the two connecting arms 53 is connected to the two connecting boards 51 .
- the two linking arms 54 are deposited in the sanding machine 50 at a spaced interval, face each other, and each one of the linking arms 54 is connected to the two connecting arms 53 adjacent to one of the two connecting boards 51 .
- the two transmitting groups 55 are deposited in the sanding machine 50 around the traversal frame 52 , are parallel with the two connecting arms 53 of the transversal frame 52 , and each one of the two transmitting groups 55 has a shaft 551 and two transmitting wheels 552 .
- the shaft 551 is deposited in the sanding machine 50 , is parallel with and adjacent to one of the two connecting arms 53 , and has two ends.
- the two transmitting wheels 552 are respectively deposited on the two ends of the shaft 551 of the transmitting group 55 .
- the two transmission belts 56 are connected to the two transmitting groups 55 , and each one of the two transmission belts 56 is deposited around two of the transmitting wheels 552 of the two transmitting groups 55 at a same side of the sanding machine 50 . Then, each one of the two transmission belts 56 is an annularly arranged structure between two corresponding transmitting wheels 552 .
- the shaft 551 of one of the two transmitting groups 55 is connected to and driven by a driving device such as a motor. Then, when the driving device starts working, the two transmitting groups 55 can be rotated with each other synchronously via the two transmission belts 56 .
- the multiple brush bars 57 are deposited on the two transmission belts 56 at spaced intervals, are parallel with the two connecting arms 53 of the transversal frame 52 , and are moved and rotated with the two transmission belts 56 .
- the pressing device is deposited on the transversal frame 52 of the sanding machine 50 , and is located in an inner side of one of the two transmission belts 56 . Furthermore, in the present invention, with reference to FIG. 1 , there are two pressing devices respectively connected to the two linking arms 54 and respectively deposited in the transmission belts 56 of the sanding machine 50 . Each one of the two pressing devices comprises a holding frame 10 , a pressing frame 20 , and a synchronization set 30 .
- the holding frame 10 is securely connected to one of the two linking arms 54 of the transversal frame 52 at same sides of the two connecting arms 53 , and may have at least two fixing boards 11 deposited on an inner side of the holding frame 10 and connected to the corresponding linking arm 54 .
- Each one of the at least two fixing boards 11 has an elongated adjusting hole 12 formed through the fixing board 11 .
- a height of the holding frame 10 relative to a corresponding transmission belt 56 may be adjusted by the adjusting holes 12 of the at least two fixing boards 11 .
- the holding frame 10 further has two wheel axles 13 respectively deposited on two ends of the holding frame 10 at an outer side of the holding frame 10 .
- the pressing frame 20 is securely connected to the holding frame 10 between the two wheel axles 13 and the inner side of the corresponding transmission belt 56 , and has multiple rollers 21 .
- the multiple rollers 21 are rotatably deposited on a bottom of the pressing frame 20 at spaced intervals, and extend toward a lower half of the corresponding transmission belt 56 .
- the synchronization set 30 is connected to the holding frame 10 around the pressing frame 20 , and has two synchronous wheels 31 and a synchronous belt 32 .
- the two synchronous wheels 31 are respectively and rotatably mounted on the two wheel axles 13 of the holding frame 10 beside the pressing frame 20 .
- the synchronous belt 32 is mounted around the two synchronous wheels 31 of the synchronization set 30 , and a lower half of the synchronous belt 32 abuts the inner side of the corresponding transmission belt 56 and is connected to the rollers 21 of the pressing frame 20 .
- the pressing device of the present invention further has an auxiliary set 40 .
- the auxiliary set 40 is connected to one of the linking arms 54 of the transversal frame 52 , is connected to the synchronous belt 32 of the synchronization set 30 at a same side of the transversal frame 52 .
- the auxiliary set 40 has multiple auxiliary wheels 41 deposited at spaced intervals and securely connected to the corresponding linking arm 54 of the transversal frame 52 . Each one of the auxiliary wheels 41 abuts against the synchronous belt 32 to rotate with the synchronous belt 32 .
- the auxiliary set 40 has multiple adjusting frames 42 connected to the corresponding linking arm 54 and respectively connected to the auxiliary wheels 41 .
- the positions of the adjusting frames 42 can be changed by moving upwardly or downwardly relative to the synchronous belt 32 , and this may adjust the abutting conditions of the auxiliary wheels 41 relative to the synchronous belt 32 . Then, the tightness of the synchronous belt 32 can be adjusted by the auxiliary wheels 41 via the adjusting frames 42 , and the shaking and noise generated by the components when they are rotated can be reduced.
- two pressing devices are respectively deposited on outer sides of the two linking arms 54 of the transversal frame 52 to locate each one of the two pressing devices in the inner side of one of the two transmission belts 56 .
- the synchronous belt 32 of each one of the pressing devices abuts the inner side of a corresponding transmission belt 56 .
- a driving device that is connected to one of the two shafts 551 of the two transmitting groups 55 starts working to rotate the corresponding shaft 551 , and the multiple brush bars 57 are moved and rotated cyclically via the two transmission belts 56 and the two transmitting groups 55 .
- a driving device 60 is deposited on a top of the sanding machine 50 and has a linking set 61 and driving set 62 .
- the linking set 61 is deposited on the top of the sanding machine 50 and has a rotating mount 611 and a linking motor 612 .
- the rotating mount 611 is deposited on the top of the sanding machine 50 .
- the linking motor 612 is deposited in the rotating mount 611 and has a linking rod 613 extending out of the rotating mount 611 .
- the linking set 61 has a linking belt 614 mounted around the linking rod 613 and one of the shafts 551 .
- the driving set 62 is deposited on the linking set 61 and has a top base 621 , a driving motor 622 , a rotating shaft 623 , and a driving chain belt 624 .
- the top base 621 is deposited on the rotating mount 611 .
- the driving motor 622 is longitudinally deposited in the top base 621 .
- the rotating shaft 623 is deposited between the rotating mount 611 and the top base 621 , and has a bottom end and top end. The bottom end of the rotating shaft 623 is securely mounted on the rotating mount 611 , and the top end of the rotating shaft 623 extends in the top base 621 via the rotating mount 611 .
- the rotating shaft 623 has a rotating disk 625 deposited on the top end of the rotating shaft 623 , and the driving chain belt 624 is mounted around the driving motor 622 and the rotating disk 625 of the rotating shaft 623 .
- the rotating shaft 623 is rotated transversally via the driving chain belt 624 and the rotating disk 625 , and this enable the sanding machine 50 to rotate relative to the driving device 60 .
- the corresponding shaft 551 is rotated longitudinally by the linking motor 612 via the linking rod 613 and the linking belt 614 , and the brush bars 57 are moved cyclically by the transmission belts 56 .
- the workpiece 70 is deposited below the sanding machine 50 .
- the multiple brush bars 57 that are deposited on the two transmission belts 56 are used to sand the uneven and irregular surface of the workpiece 70 .
- the multiple brush bars 57 and the two transmission belts 56 may be deformed upwardly to enable the two transmission belts 56 to abut the rollers 21 of the two pressing frames 20 .
- the two pressing frames 20 are securely connected to the transversal frame 52 via the two holding frames 10 without moving relative to the two transmission belts 56 and the workpiece 70 .
- the two pressing frames 20 may provide pre-pressing forces to the multiple brush bars 57 when the multiple brush bars 57 and the two transmission belts 56 are moved relative to the two pressing frames 20 along the uneven and irregular surface of the workpiece 70 , and the pre-pressing forces of the two pressing frames 20 may enable the multiple brush bars 57 to keep sanding the workpiece 70 even under an upward deformation condition.
- the workpiece 70 with the uneven and irregular surface can be accurately sanded by the multiple brush bars 57 via the pre-pressing forces of the two pressing frames 20 when the multiple brush bars 57 are deformed by the uneven and irregular surface of the workpiece 70 , and this may provide a consistent sanding effect to the workpiece 70 and may improve the sanding quality of the sanding machine 50 .
- the pressing device can be used without the synchronization set 30 , since the multiple rollers 21 of the pressing frame 20 still apply pre-pressing forces on the multiple brush bars 57 that are deposited on the two transmission belts 56 to sand the workpiece 70 with the uneven and irregular surface, and this may reduce a height difference between two adjacent brush bars 57 to improve the smoothness of track operation of the sanding machine 50 .
- the synchronous belt 32 abuts the corresponding transmission belt 56 to provide effects of synchronous rotation of the synchronous belt 32 and the corresponding transmission belt 56 and rotations of the rollers 21 .
- the synchronization set 30 may reduce the wear situation of each one of the rollers 21 and the transmission belts 56 during the operation of the sanding machine 50 , and this may prolong the life of each one of the rollers 21 and the transmission belts 56 .
- the two holding frames 10 and the two pressing frames 20 are respectively deposited on two sides of the transversal frame 52 to enable the rollers 21 of each one of the two pressing devices 20 to rotate toward the inner side of a corresponding transmission belt 56 .
- the rollers 21 of the two pressing devices 20 may apply pre-pressing forces on the upward deformed brush bars 57 and transmission belt 56 to enable the brush bars 57 to sand the concaved portion of the uneven and irregular surface of the workpiece 70 accurately.
- the sanding machine 50 may provide a consistent sanding effect to the workpiece 70 , and the sanding quality of the sanding machine 50 can be improved. Furthermore, when the synchronization set 30 is used with the holding frame 10 and the pressing frame 20 , the synchronous belt 32 abuts the corresponding transmission belt 56 to provide effects of synchronous rotation of the synchronous belt 32 and the corresponding transmission belt 56 and rotations of the rollers 21 . Furthermore, the synchronization set 30 may reduce the wear situation of each one of the rollers 21 and the transmission belts 56 during the operation of the sanding machine 50 , and this may prolong the life of each one of the rollers 21 and the transmission belts 56 .
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
A pressing device for sanding machines is connected to a sanding machine with a transversal frame, at least one transmitting group, and at least one transmission belt, and the pressing device has a holding frame, a pressing frame, a synchronization set, and an auxiliary set. The holding frame is securely connected to the transversal frame to locate in an inner side of the at least one transmission belt. The pressing frame is securely connect to the holding frame to locate in the inner side of the at least one transmission belt, and has multiple rollers deposited on a bottom of the pressing frame and extending toward a lower half of the at least one transmission belt. The rollers of the pressing frame selectively abut the at least one transmission belt to rotate with the at least one transmission belt and to provide a pre-pressing force.
Description
- The present invention relates to a pressing device, and more particularly relates to a pressing device for sanding machines that may act with a transmission belt of a sanding machine to provide a pre-pressure and to improve the sanding quality of the sanding machine.
- Generally, a conventional sanding machine is used to sand a surface of a workpiece, and has multiple brush bars that may rotate cyclically to sand the surface of the workpiece. When the surface of the workpiece is a uniform plane, the conventional sanding machine may sand the surface of the workpiece with a consistent sanding effect by the multiple brush bars. However, when the surface of the workpiece is an uneven and irregular plane, the multiple brush bars of the conventional sanding machine may be deformed with the uneven and irregular plane of the workpiece without sanding the surface of the workpiece accurately, and a height difference may be formed between two adjacent brush bars to influence the smoothness of track operation of the conventional sanding machine, and this may influence the sanding quality of the conventional sanding machine. Then, the workpiece with the uneven and irregular plane may need to be processed by subsequent procedures or sanded with the conventional sanding machine several times, and this will increase the time and cost of sanding the workpiece.
- To overcome the shortcomings, the present invention provides a pressing device for sanding machines to mitigate or obviate the aforementioned problems.
- The main objective of the present invention is to provide a pressing device for sanding machines that may act with a transmission belt of a sanding machine to provide a pre-pressure and to improve the sanding quality of the sanding machine.
- The pressing device for sanding machines in accordance with the present invention is connected to a sanding machine with a transversal frame, at least one transmitting group, and at least one transmission belt, and the pressing device has a holding frame, a pressing frame, a synchronization set, and an auxiliary set. The holding frame is securely connected to the transversal frame to locate in an inner side of the at least one transmission belt. The pressing frame is securely connected to the holding frame to locate in the inner side of the at least one transmission belt, and has multiple rollers deposited on a bottom of the pressing frame and extending toward a lower half of the at least one transmission belt. The rollers of the pressing frame selectively abut the at least one transmission belt to rotate with the at least one transmission belt and to provide a pre-pressing force.
- Other objects, advantages and novel features of the invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings.
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FIG. 1 is a perspective view of a pressing device for sanding machines in accordance with the present invention, deposited on a sanding machine; -
FIG. 2 is an enlarged perspective view of the pressing device inFIG. 1 ; -
FIG. 3 is a side view of the pressing device inFIG. 1 ; -
FIG. 4 is another side view of the pressing device inFIG. 1 , shown with some components omitted; -
FIG. 5 is an enlarged side view in partial section of the pressing device inFIG. 1 ; -
FIGS. 6 to 8 are operational side views of the pressing device inFIG. 1 , driven by a driving device; and -
FIG. 9 is an operational side view of the pressing device inFIG. 1 , shown sanding a workpiece. - With reference to
FIGS. 1 to 4 , a pressing device for sanding machines in accordance with the present invention is deposited on asanding machine 50 having two connectingboards 51, atransversal frame 52, two transmittinggroups 55, twotransmission belts 56, andmultiple brush bars 57. The two connectingboards 51 are deposited in the sanding machine at a spaced interval and face each other. Thetransversal frame 52 is deposited in thesanding machine 50 between the two connectingboards 51, and has two connectingarms 53 and two linkingarms 54. The two connectingarms 53 are deposited in thesanding machine 50 at a spaced interval, face each other, and each one of the two connectingarms 53 is connected to the two connectingboards 51. The two linkingarms 54 are deposited in thesanding machine 50 at a spaced interval, face each other, and each one of the linkingarms 54 is connected to the two connectingarms 53 adjacent to one of the two connectingboards 51. - The two transmitting
groups 55 are deposited in thesanding machine 50 around thetraversal frame 52, are parallel with the two connectingarms 53 of thetransversal frame 52, and each one of the two transmittinggroups 55 has ashaft 551 and two transmittingwheels 552. Theshaft 551 is deposited in thesanding machine 50, is parallel with and adjacent to one of the two connectingarms 53, and has two ends. The two transmittingwheels 552 are respectively deposited on the two ends of theshaft 551 of the transmittinggroup 55. The twotransmission belts 56 are connected to the two transmittinggroups 55, and each one of the twotransmission belts 56 is deposited around two of the transmittingwheels 552 of the two transmittinggroups 55 at a same side of thesanding machine 50. Then, each one of the twotransmission belts 56 is an annularly arranged structure between two corresponding transmittingwheels 552. - In addition, the
shaft 551 of one of the two transmittinggroups 55 is connected to and driven by a driving device such as a motor. Then, when the driving device starts working, the two transmittinggroups 55 can be rotated with each other synchronously via the twotransmission belts 56. Themultiple brush bars 57 are deposited on the twotransmission belts 56 at spaced intervals, are parallel with the two connectingarms 53 of thetransversal frame 52, and are moved and rotated with the twotransmission belts 56. - The pressing device is deposited on the
transversal frame 52 of thesanding machine 50, and is located in an inner side of one of the twotransmission belts 56. Furthermore, in the present invention, with reference toFIG. 1 , there are two pressing devices respectively connected to the two linkingarms 54 and respectively deposited in thetransmission belts 56 of thesanding machine 50. Each one of the two pressing devices comprises aholding frame 10, apressing frame 20, and a synchronization set 30. - The
holding frame 10 is securely connected to one of the two linkingarms 54 of thetransversal frame 52 at same sides of the two connectingarms 53, and may have at least twofixing boards 11 deposited on an inner side of theholding frame 10 and connected to the corresponding linkingarm 54. Each one of the at least twofixing boards 11 has an elongated adjustinghole 12 formed through thefixing board 11. A height of theholding frame 10 relative to acorresponding transmission belt 56 may be adjusted by the adjustingholes 12 of the at least twofixing boards 11. Additionally, theholding frame 10 further has twowheel axles 13 respectively deposited on two ends of theholding frame 10 at an outer side of theholding frame 10. - The
pressing frame 20 is securely connected to theholding frame 10 between the twowheel axles 13 and the inner side of thecorresponding transmission belt 56, and hasmultiple rollers 21. Themultiple rollers 21 are rotatably deposited on a bottom of thepressing frame 20 at spaced intervals, and extend toward a lower half of thecorresponding transmission belt 56. - The
synchronization set 30 is connected to theholding frame 10 around thepressing frame 20, and has twosynchronous wheels 31 and asynchronous belt 32. The twosynchronous wheels 31 are respectively and rotatably mounted on the twowheel axles 13 of theholding frame 10 beside thepressing frame 20. With reference toFIGS. 4 and 5 , thesynchronous belt 32 is mounted around the twosynchronous wheels 31 of the synchronization set 30, and a lower half of thesynchronous belt 32 abuts the inner side of thecorresponding transmission belt 56 and is connected to therollers 21 of thepressing frame 20. - With reference to
FIGS. 3 and 4 , the pressing device of the present invention further has anauxiliary set 40. Theauxiliary set 40 is connected to one of the linkingarms 54 of thetransversal frame 52, is connected to thesynchronous belt 32 of the synchronization set 30 at a same side of thetransversal frame 52. Theauxiliary set 40 has multipleauxiliary wheels 41 deposited at spaced intervals and securely connected to the corresponding linkingarm 54 of thetransversal frame 52. Each one of theauxiliary wheels 41 abuts against thesynchronous belt 32 to rotate with thesynchronous belt 32. Additionally, theauxiliary set 40 has multiple adjustingframes 42 connected to the corresponding linkingarm 54 and respectively connected to theauxiliary wheels 41. The positions of the adjustingframes 42 can be changed by moving upwardly or downwardly relative to thesynchronous belt 32, and this may adjust the abutting conditions of theauxiliary wheels 41 relative to thesynchronous belt 32. Then, the tightness of thesynchronous belt 32 can be adjusted by theauxiliary wheels 41 via the adjustingframes 42, and the shaking and noise generated by the components when they are rotated can be reduced. - With reference to
FIG. 1 , in use, two pressing devices are respectively deposited on outer sides of the two linkingarms 54 of thetransversal frame 52 to locate each one of the two pressing devices in the inner side of one of the twotransmission belts 56. Thesynchronous belt 32 of each one of the pressing devices abuts the inner side of acorresponding transmission belt 56. A driving device that is connected to one of the twoshafts 551 of the two transmittinggroups 55 starts working to rotate thecorresponding shaft 551, and themultiple brush bars 57 are moved and rotated cyclically via the twotransmission belts 56 and the two transmittinggroups 55. With reference toFIGS. 4 and 5 , since the twosynchronous belts 32 respectively abut the inner sides of the twotransmission belts 56, the twosynchronous belts 32 are moved and rotated when thetransmission belts 56 are moved and rotated cyclically, and therollers 21 of the twopressing frames 20 and theauxiliary wheels 41 of theauxiliary set 40 are rotated with the twosynchronous belts 32. Then, the shaking and noise generated by the components when they are rotated can be reduced. - With further reference to
FIGS. 6 to 8 , when thesanding machine 50 is in use, adriving device 60 is deposited on a top of thesanding machine 50 and has a linking set 61 and driving set 62. The linkingset 61 is deposited on the top of thesanding machine 50 and has a rotatingmount 611 and a linkingmotor 612. Therotating mount 611 is deposited on the top of the sandingmachine 50. The linkingmotor 612 is deposited in therotating mount 611 and has a linkingrod 613 extending out of therotating mount 611. The linking set 61 has a linkingbelt 614 mounted around the linkingrod 613 and one of theshafts 551. - The driving set 62 is deposited on the linking set 61 and has a
top base 621, a drivingmotor 622, arotating shaft 623, and a drivingchain belt 624. Thetop base 621 is deposited on therotating mount 611. The drivingmotor 622 is longitudinally deposited in thetop base 621. Therotating shaft 623 is deposited between therotating mount 611 and thetop base 621, and has a bottom end and top end. The bottom end of therotating shaft 623 is securely mounted on therotating mount 611, and the top end of therotating shaft 623 extends in thetop base 621 via therotating mount 611. Therotating shaft 623 has arotating disk 625 deposited on the top end of therotating shaft 623, and the drivingchain belt 624 is mounted around the drivingmotor 622 and therotating disk 625 of therotating shaft 623. - When the driving
motor 622 is driven, therotating shaft 623 is rotated transversally via the drivingchain belt 624 and therotating disk 625, and this enable the sandingmachine 50 to rotate relative to the drivingdevice 60. At the same time, the correspondingshaft 551 is rotated longitudinally by the linkingmotor 612 via the linkingrod 613 and the linkingbelt 614, and the brush bars 57 are moved cyclically by thetransmission belts 56. With reference toFIG. 9 , when aworkpiece 70 with an uneven and irregular surface needs sanding, theworkpiece 70 is deposited below the sandingmachine 50. When theworkpiece 70 is moved relative to the sandingmachine 50, the multiple brush bars 57 that are deposited on the twotransmission belts 56 are used to sand the uneven and irregular surface of theworkpiece 70. When the multiple brush bars 57 are moved toward a concaved portion of theworkpiece 70, the multiple brush bars 57 and the twotransmission belts 56 may be deformed upwardly to enable the twotransmission belts 56 to abut therollers 21 of the twopressing frames 20. The twopressing frames 20 are securely connected to thetransversal frame 52 via the two holdingframes 10 without moving relative to the twotransmission belts 56 and theworkpiece 70. - Therefore, the two
pressing frames 20 may provide pre-pressing forces to themultiple brush bars 57 when the multiple brush bars 57 and the twotransmission belts 56 are moved relative to the twopressing frames 20 along the uneven and irregular surface of theworkpiece 70, and the pre-pressing forces of the twopressing frames 20 may enable themultiple brush bars 57 to keep sanding theworkpiece 70 even under an upward deformation condition. Consequently, theworkpiece 70 with the uneven and irregular surface can be accurately sanded by the multiple brush bars 57 via the pre-pressing forces of the twopressing frames 20 when the multiple brush bars 57 are deformed by the uneven and irregular surface of theworkpiece 70, and this may provide a consistent sanding effect to theworkpiece 70 and may improve the sanding quality of the sandingmachine 50. - Additionally, in use, the pressing device can be used without the synchronization set 30, since the
multiple rollers 21 of thepressing frame 20 still apply pre-pressing forces on the multiple brush bars 57 that are deposited on the twotransmission belts 56 to sand theworkpiece 70 with the uneven and irregular surface, and this may reduce a height difference between two adjacent brush bars 57 to improve the smoothness of track operation of the sandingmachine 50. In addition, when the pressing device is used with the synchronization set 30, thesynchronous belt 32 abuts the correspondingtransmission belt 56 to provide effects of synchronous rotation of thesynchronous belt 32 and the correspondingtransmission belt 56 and rotations of therollers 21. Furthermore, the synchronization set 30 may reduce the wear situation of each one of therollers 21 and thetransmission belts 56 during the operation of the sandingmachine 50, and this may prolong the life of each one of therollers 21 and thetransmission belts 56. - According to the above-mentioned features and structural relationships of the present invention, in use, the two holding
frames 10 and the twopressing frames 20 are respectively deposited on two sides of thetransversal frame 52 to enable therollers 21 of each one of the twopressing devices 20 to rotate toward the inner side of acorresponding transmission belt 56. When the sandingmachine 50 is used to sand aworkpiece 70 with an uneven and irregular surface, therollers 21 of the twopressing devices 20 may apply pre-pressing forces on the upward deformed brush bars 57 andtransmission belt 56 to enable the brush bars 57 to sand the concaved portion of the uneven and irregular surface of theworkpiece 70 accurately. Then, the sandingmachine 50 may provide a consistent sanding effect to theworkpiece 70, and the sanding quality of the sandingmachine 50 can be improved. Furthermore, when the synchronization set 30 is used with the holdingframe 10 and thepressing frame 20, thesynchronous belt 32 abuts the correspondingtransmission belt 56 to provide effects of synchronous rotation of thesynchronous belt 32 and the correspondingtransmission belt 56 and rotations of therollers 21. Furthermore, the synchronization set 30 may reduce the wear situation of each one of therollers 21 and thetransmission belts 56 during the operation of the sandingmachine 50, and this may prolong the life of each one of therollers 21 and thetransmission belts 56. - Even though numerous characteristics and advantages of the present invention have been set forth in the foregoing description, together with details of the structure and features of the invention, the disclosure is illustrative only. Changes may be made in the details, especially in matters of shape, size, and arrangement of parts within the principles of the invention to the full extent indicated by the broad general meaning of the terms in which the appended claims are expressed.
Claims (6)
1. A pressing device for sanding machines, connected to a sanding machine with a transversal frame, at least one transmitting group deposited outside the transversal frame, and at least one transmission belt connected to the at least one transmitting group, and the pressing device connected to the transversal frame of the sanding machine, located in an inner side of the at least one transmission belt, and having:
a holding frame adapted to be securely connected to the transversal frame to locate in the inner side of the at least one transmission belt, and having two wheel axles respectively deposited on two ends of the holding frame at an outer side of the holding frame;
a pressing frame securely connected to the holding frame to locate in the inner side of the at least one transmission belt, and having multiple rollers deposited on a bottom of the pressing frame and extending toward a lower half of the at least one transmission belt;
wherein the rollers of the pressing frame selectively abut the at least one transmission belt to rotate with the at least one transmission belt and to provide a pre-pressing force;
a synchronization set connected to the holding frame around the pressing frame, and having
two synchronous wheels respectively and rotatably mounted on the two wheel axles of the holding frame beside the pressing frame; and
a synchronous belt mounted around the two synchronous wheels of the synchronization set, and having a lower half abutting the inner side of the at least one transmission belt and connected to the rollers of the pressing frame; and
an auxiliary set adapted to be securely connected to the transversal frame to locate in the inner side of the at least one transmission belt, connected to the synchronization set, and having multiple auxiliary wheels deposited at spaced intervals and abutting against the synchronous belt.
2. The pressing device as claimed in claim 1 , wherein the holding frame has at least two fixing boards deposited on an inner side of the holding frame to connect with the transversal frame.
3. The pressing device as claimed in claim 2 , wherein
each one of the at least two fixing boards has an elongated adjusting hole formed through the fixing board; and
a height of the holding frame relative to the at least one transmission belt is adjusted by the adjusting holes of the at least two fixing boards.
4. The pressing device as claimed in claim 1 , wherein the auxiliary set has multiple adjusting frames respectively connected to the auxiliary wheels to change positions of the auxiliary wheels to adjust tightness of the synchronous belt.
5. The pressing device as claimed in claim 2 , wherein the auxiliary set has multiple adjusting frames respectively connected to the auxiliary wheels to change positions of the auxiliary wheels to adjust tightness of the synchronous belt.
6. The pressing device as claimed in claim 3 , wherein the auxiliary set has multiple adjusting frames respectively connected to the auxiliary wheels to change positions of the auxiliary wheels to adjust tightness of the synchronous belt.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US15/801,107 US20190126426A1 (en) | 2017-11-01 | 2017-11-01 | Pressing device for sanding machines |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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US15/801,107 US20190126426A1 (en) | 2017-11-01 | 2017-11-01 | Pressing device for sanding machines |
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US20190126426A1 true US20190126426A1 (en) | 2019-05-02 |
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US15/801,107 Abandoned US20190126426A1 (en) | 2017-11-01 | 2017-11-01 | Pressing device for sanding machines |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN111687725A (en) * | 2020-06-19 | 2020-09-22 | 徐子桐 | Customized furniture splicing assembly tongue-and-groove forming precision machining machine and precision machining method |
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US2904937A (en) * | 1957-02-22 | 1959-09-22 | Maschb Jonsdorf Veb | Pressure platen means for a belt polishing or grinding machine |
US3859757A (en) * | 1972-05-09 | 1975-01-14 | Karl Heesemann | Grinding machine with belts |
US20080207097A1 (en) * | 2005-09-12 | 2008-08-28 | Lissmac Maschinebau Und Diamantwerkzeuge Gmbh | Apparatus for machining a workpiece |
US20120295523A1 (en) * | 2009-11-27 | 2012-11-22 | Lissmac Maschinebau GmbH | Machining station and apparatus for machining a workpiece |
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US1932092A (en) * | 1930-08-16 | 1933-10-24 | Etchart Martin | Machine for the manufacture and smoothing of rods |
US2772522A (en) * | 1954-03-18 | 1956-12-04 | Minami Masatsugu | Mechanical sanders |
US2904937A (en) * | 1957-02-22 | 1959-09-22 | Maschb Jonsdorf Veb | Pressure platen means for a belt polishing or grinding machine |
US3859757A (en) * | 1972-05-09 | 1975-01-14 | Karl Heesemann | Grinding machine with belts |
US20080207097A1 (en) * | 2005-09-12 | 2008-08-28 | Lissmac Maschinebau Und Diamantwerkzeuge Gmbh | Apparatus for machining a workpiece |
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