US20040087260A1 - Sand-belt finishing machine having a reciprocal movement mechanism - Google Patents

Sand-belt finishing machine having a reciprocal movement mechanism Download PDF

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Publication number
US20040087260A1
US20040087260A1 US10/285,534 US28553402A US2004087260A1 US 20040087260 A1 US20040087260 A1 US 20040087260A1 US 28553402 A US28553402 A US 28553402A US 2004087260 A1 US2004087260 A1 US 2004087260A1
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Prior art keywords
sand
eccentric
roller
belt
movement mechanism
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US10/285,534
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US6722966B1 (en
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Wang Wang
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Priority to US10/285,534 priority Critical patent/US6722966B1/en
Priority to GB0313248A priority patent/GB2402640B/en
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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
    • B24B21/18—Accessories
    • B24B21/22—Accessories for producing a reciprocation of the grinding belt normal to its direction of movement
    • 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
    • B24B21/12—Machines or devices using grinding or polishing belts; Accessories therefor for grinding plane surfaces involving a contact wheel or roller pressing the belt against the work
    • 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
    • B24B53/00—Devices or means for dressing or conditioning abrasive surfaces
    • B24B53/10—Devices or means for dressing or conditioning abrasive surfaces of travelling flexible backings coated with abrasives; Cleaning of abrasive belts

Definitions

  • the present invention relates to a sand-belt finishing machine having a reciprocal movement mechanism, and more particularly to a sand-belt finishing machine having a reciprocal movement mechanism that produces a driving force to pull and push the first roller, so that the first roller is oscillated successively and produces a vibration or shock force on the sand belt, so as to remove and clear the powder chips attached on the surface of the sand belt.
  • the sand-belt finishing machine is a working machine that is used to finish the surface of the wooden material.
  • a conventional sand-belt finishing machine in accordance with the prior art comprises a transverse roller, and a sand belt wound around the surface of the roller.
  • the wooden material is passed through the lower side of the roller which is being rotated, so that the wooden material is rubbed and finished by the sand belt on the surface of the roller, thereby achieving a finishing effect.
  • the powder chips attached on the surface of the sand belt need to be removed and cleared during a long-term utilization.
  • the sand belt is fixed on the sand-belt finishing machine, so that the user needs to use a tool, such as a brush, to clear the powder chips attached on the surface of the sand belt when the sand belt is being rotated, thereby causing inconvenience to the user, and thereby wasting the manual work.
  • a tool such as a brush
  • the wooden material is passed through the lower side of the roller in an oblique or skew manner, a partial area of the surface of the wooden material is not finished by the sand belt, thereby decreasing the finishing effect.
  • the present invention has arisen to mitigate and/or obviate the disadvantage of the conventional sand-belt finishing machine.
  • the primary objective of the present invention is to provide a sand-belt finishing machine having a reciprocal movement mechanism, wherein the eccentric unit produces a driving force to pull and push the first roller, so that the first roller is oscillated successively and produces a vibration or shock force on the sand belt, so as to remove and clear the powder chips attached on the surface of the sand belt.
  • Another objective of the present invention is to provide a sand-belt finishing machine having a reciprocal movement mechanism, wherein the first roller is oscillated successively, so that the sand belt produces a transverse displacement so as to increase the contact area between the sand belt and the surface of the wooden material, thereby enhancing the finishing effect.
  • a sand-belt finishing machine having a reciprocal movement mechanism, comprising:
  • a swingable support rack mounted on the main body
  • the finishing device includes a first roller mounted on the swingable support rack, a second roller, and a sand belt mounted around the first roller and the second roller;
  • the eccentric device includes an eccentric unit, and a pull lever, wherein the eccentric unit of the eccentric device is secured on the support rack, and the pull lever of the eccentric device has a first end connected to the eccentric unit of the eccentric device, and a second end secured on the main body; and
  • the finishing device is operated to drive the eccentric device to move synchronously, so that the first roller is oscillated by movement of the eccentric device.
  • FIG. 1 is a perspective view of a sand-belt finishing machine having a reciprocal movement mechanism in accordance with a preferred embodiment of the present invention
  • FIG. 2 is a partially enlarged view of the sand-belt finishing machine having a reciprocal movement mechanism as shown in FIG. 1;
  • FIG. 3 is a partially top plan enlarged view of the sand-belt finishing machine having a reciprocal movement mechanism as shown in FIG. 1;
  • FIG. 4 is schematic top plan view of the sand-belt finishing machine having a reciprocal movement mechanism as shown in FIG. 1;
  • FIG. 5 is a schematic operational view of the sand-belt finishing machine having a reciprocal movement mechanism as shown in FIG. 4 in use;
  • FIG. 6 is a schematic operational view of the sand-belt finishing machine having a reciprocal movement mechanism as shown in FIG. 5 in use.
  • a sand-belt finishing machine having a reciprocal movement mechanism in accordance with a preferred embodiment of the present invention comprises a main body 10 , a finishing device 20 mounted on the main body 10 , and an eccentric device 30 mounted on the main body 10 .
  • the finishing device 20 includes a first roller 22 , a second roller 24 , and a sand belt 40 (see FIG. 4) mounted around the first roller 22 and the second roller 24 .
  • the first roller 22 and the second roller 24 are in parallel with each other.
  • the first roller 22 is mounted on a swingable support rack 26 that is mounted on the main body 10 .
  • the sand belt 40 having a loop shape is mounted on the first roller 22 and the second roller 24 .
  • the eccentric device 30 includes an eccentric unit 32 , and a pull lever 34 .
  • the eccentric unit 32 of the eccentric device 30 is secured on the support rack 26 .
  • the pull lever 34 of the eccentric device 30 has a first end connected to the eccentric unit 32 of the eccentric device 30 , and a second end secured on the main body 10 .
  • the eccentric unit 32 of the eccentric device 30 includes a worm 36 , and a worm wheel 38 co-operating with the worm 36 so as to drive the eccentric unit 32 of the eccentric device 30 .
  • the first end of the pull lever 34 of the eccentric device 30 is eccentrically mounted on the worm wheel 38 of the eccentric unit 32 of the eccentric device 30 .
  • the power source for rotating the first roller 22 may be used to drive and rotate the eccentric unit 32 of the eccentric device 30 .
  • the worm 36 of the eccentric unit 32 of the eccentric device 30 is rotated by the power source of rotating the first roller 22 , to rotate the worm wheel 38 of the eccentric unit 32 of the eccentric device 30 , so as to move the pull lever 34 of the eccentric device 30 .
  • the eccentric device 30 is also operated synchronously, so as to drive the first roller 22 to oscillate and vibrate successively.
  • the first roller 22 that is oscillated successively will produce a vibration or shock force on the sand belt 40 , so as to remove and clear the powder chips attached on the surface of the sand belt 40 , without having to stop operation of the sand-belt finishing machine for removing the powder chips, and without having to remove and clear the powder chips by a tool, such as a brush, thereby facilitating the user removing and clearing the powder chips, and thereby saving the manual work.
  • the eccentric unit 32 may produce a driving force to pull and push the first roller 22 , so that the first roller 22 is oscillated successively and produces a vibration or shock force on the sand belt 40 , so as to remove and clear the powder chips attached on the surface of the sand belt 40 .
  • the first roller 22 is oscillated successively, so that the sand belt 40 produces a transverse displacement so as to increase the contact area between the sand belt 40 and the surface of the wooden material, thereby enhancing the finishing effect.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Abstract

A sand-belt finishing machine having a reciprocal movement mechanism includes a main body, a swingable support rack, a finishing device, and an eccentric device. Thus, the eccentric unit of the eccentric device produces a driving force to pull and push the first roller of the finishing device, so that the first roller is oscillated successively and produces a vibration or shock force on the sand belt of the finishing device, so as to remove and clear the powder chips attached on the surface of the sand belt.

Description

    BACKGROUND OF THE INVENTION
  • 1. Field of the Invention [0001]
  • The present invention relates to a sand-belt finishing machine having a reciprocal movement mechanism, and more particularly to a sand-belt finishing machine having a reciprocal movement mechanism that produces a driving force to pull and push the first roller, so that the first roller is oscillated successively and produces a vibration or shock force on the sand belt, so as to remove and clear the powder chips attached on the surface of the sand belt. [0002]
  • 2. Description of the Related Art [0003]
  • The sand-belt finishing machine is a working machine that is used to finish the surface of the wooden material. A conventional sand-belt finishing machine in accordance with the prior art comprises a transverse roller, and a sand belt wound around the surface of the roller. When in use, the wooden material is passed through the lower side of the roller which is being rotated, so that the wooden material is rubbed and finished by the sand belt on the surface of the roller, thereby achieving a finishing effect. The powder chips attached on the surface of the sand belt need to be removed and cleared during a long-term utilization. In general, the sand belt is fixed on the sand-belt finishing machine, so that the user needs to use a tool, such as a brush, to clear the powder chips attached on the surface of the sand belt when the sand belt is being rotated, thereby causing inconvenience to the user, and thereby wasting the manual work. In addition, if the wooden material is passed through the lower side of the roller in an oblique or skew manner, a partial area of the surface of the wooden material is not finished by the sand belt, thereby decreasing the finishing effect. [0004]
    • SUMMARY OF THE INVENTION
  • The present invention has arisen to mitigate and/or obviate the disadvantage of the conventional sand-belt finishing machine. [0005]
  • The primary objective of the present invention is to provide a sand-belt finishing machine having a reciprocal movement mechanism, wherein the eccentric unit produces a driving force to pull and push the first roller, so that the first roller is oscillated successively and produces a vibration or shock force on the sand belt, so as to remove and clear the powder chips attached on the surface of the sand belt. [0006]
  • Another objective of the present invention is to provide a sand-belt finishing machine having a reciprocal movement mechanism, wherein the first roller is oscillated successively, so that the sand belt produces a transverse displacement so as to increase the contact area between the sand belt and the surface of the wooden material, thereby enhancing the finishing effect. [0007]
  • In accordance with the present invention, there is provided a sand-belt finishing machine having a reciprocal movement mechanism, comprising: [0008]
  • a main body; [0009]
  • a swingable support rack mounted on the main body; [0010]
  • a finishing device mounted on the main body; and [0011]
  • an eccentric device mounted on the main body; wherein: [0012]
  • the finishing device includes a first roller mounted on the swingable support rack, a second roller, and a sand belt mounted around the first roller and the second roller; [0013]
  • the eccentric device includes an eccentric unit, and a pull lever, wherein the eccentric unit of the eccentric device is secured on the support rack, and the pull lever of the eccentric device has a first end connected to the eccentric unit of the eccentric device, and a second end secured on the main body; and [0014]
  • the finishing device is operated to drive the eccentric device to move synchronously, so that the first roller is oscillated by movement of the eccentric device. [0015]
  • Further benefits and advantages of the present invention will become apparent after a careful reading of the detailed description with appropriate reference to the accompanying drawings.[0016]
    • BRIEF DESCRIPTION OF THE DRAWINGS
  • FIG. 1 is a perspective view of a sand-belt finishing machine having a reciprocal movement mechanism in accordance with a preferred embodiment of the present invention; [0017]
  • FIG. 2 is a partially enlarged view of the sand-belt finishing machine having a reciprocal movement mechanism as shown in FIG. 1; [0018]
  • FIG. 3 is a partially top plan enlarged view of the sand-belt finishing machine having a reciprocal movement mechanism as shown in FIG. 1; [0019]
  • FIG. 4 is schematic top plan view of the sand-belt finishing machine having a reciprocal movement mechanism as shown in FIG. 1; [0020]
  • FIG. 5 is a schematic operational view of the sand-belt finishing machine having a reciprocal movement mechanism as shown in FIG. 4 in use; and [0021]
  • FIG. 6 is a schematic operational view of the sand-belt finishing machine having a reciprocal movement mechanism as shown in FIG. 5 in use.[0022]
    • DETAILED DESCRIPTION OF THE INVENTION
  • Referring to the drawings and initially to FIG. 1, a sand-belt finishing machine having a reciprocal movement mechanism in accordance with a preferred embodiment of the present invention comprises a [0023] main body 10, a finishing device 20 mounted on the main body 10, and an eccentric device 30 mounted on the main body 10. The finishing device 20 includes a first roller 22, a second roller 24, and a sand belt 40 (see FIG. 4) mounted around the first roller 22 and the second roller 24. The first roller 22 and the second roller 24 are in parallel with each other. The first roller 22 is mounted on a swingable support rack 26 that is mounted on the main body 10. The sand belt 40 having a loop shape is mounted on the first roller 22 and the second roller 24.
  • Referring to FIGS. 1 and 2, the [0024] eccentric device 30 includes an eccentric unit 32, and a pull lever 34. The eccentric unit 32 of the eccentric device 30 is secured on the support rack 26. The pull lever 34 of the eccentric device 30 has a first end connected to the eccentric unit 32 of the eccentric device 30, and a second end secured on the main body 10.
  • Referring to FIG. 3, the [0025] eccentric unit 32 of the eccentric device 30 includes a worm 36, and a worm wheel 38 co-operating with the worm 36 so as to drive the eccentric unit 32 of the eccentric device 30. The first end of the pull lever 34 of the eccentric device 30 is eccentrically mounted on the worm wheel 38 of the eccentric unit 32 of the eccentric device 30. It is appreciated that, the power source for rotating the first roller 22 may be used to drive and rotate the eccentric unit 32 of the eccentric device 30. Thus, the worm 36 of the eccentric unit 32 of the eccentric device 30 is rotated by the power source of rotating the first roller 22, to rotate the worm wheel 38 of the eccentric unit 32 of the eccentric device 30, so as to move the pull lever 34 of the eccentric device 30.
  • Referring to FIG. 4, when the relative position between the [0026] pull lever 34 of the eccentric device 30 and the worm wheel 38 of the eccentric unit 32 of the eccentric device 30 is as shown in FIG. 4, the first roller 22 is located at a horizontal state, and the sand belt 40 is located at the mediate position of the first roller 22.
  • Referring to FIG. 5, when the [0027] worm wheel 38 is rotated and moved to the position as shown in FIG. 5, the first end of the pull lever 34 is eccentrically mounted on the worm wheel 38 of the eccentric unit 32 and the second end of the pull lever 34 is secured on the main body 10, so that the eccentric unit 32 is pulled by the pull lever 34 to move toward the main body 10, thereby driving the support rack 26 to swing and oscillate (because the eccentric unit 32 is secured on the support rack 26). Thus, the first roller 22 mounted on the swingable support rack 26 is oscillated with the support rack 26.
  • Referring to FIG. 6, when the [0028] worm wheel 38 is rotated and moved to the position as shown in FIG. 6, the eccentric unit 32 is pushed by the pull lever 34 to move along the direction away from the main body 10, thereby driving the support rack 26 to swing and oscillate. Thus, the first roller 22 mounted on the swingable support rack 26 is oscillated with the support rack 26.
  • In conclusion, when the [0029] finishing device 20 is operated, the eccentric device 30 is also operated synchronously, so as to drive the first roller 22 to oscillate and vibrate successively. Thus, the first roller 22 that is oscillated successively will produce a vibration or shock force on the sand belt 40, so as to remove and clear the powder chips attached on the surface of the sand belt 40, without having to stop operation of the sand-belt finishing machine for removing the powder chips, and without having to remove and clear the powder chips by a tool, such as a brush, thereby facilitating the user removing and clearing the powder chips, and thereby saving the manual work.
  • In addition, as shown in FIGS. [0030] 4-6, when the first roller 22 is oscillated successively, the first roller 22 applies a partial force to move the sand belt 40 in a transverse manner. Thus, the transverse displacement of the sand belt 40 increase the contact area between the sand belt 40 and the surface of the wooden material, thereby enhancing the finishing effect.
  • Accordingly, in the sand-belt finishing machine having a reciprocal movement mechanism in accordance with the preferred embodiment of the present invention, the [0031] eccentric unit 32 may produce a driving force to pull and push the first roller 22, so that the first roller 22 is oscillated successively and produces a vibration or shock force on the sand belt 40, so as to remove and clear the powder chips attached on the surface of the sand belt 40. In addition, the first roller 22 is oscillated successively, so that the sand belt 40 produces a transverse displacement so as to increase the contact area between the sand belt 40 and the surface of the wooden material, thereby enhancing the finishing effect.
  • Although the invention has been explained in relation to its preferred embodiment(s) as mentioned above, it is to be understood that many other possible modifications and variations can be made without departing from the scope of the present invention. It is, therefore, contemplated that the appended claim or claims will cover such modifications and variations that fall within the true scope of the invention. [0032]

Claims (4)

What is claimed is:
1. A sand-belt finishing machine having a reciprocal movement mechanism, comprising:
a main body;
a swingable support rack mounted on the main body;
a finishing device mounted on the main body; and
an eccentric device mounted on the main body; wherein:
the finishing device includes a first roller mounted on the swingable support rack, a second roller, and a sand belt mounted around the first roller and the second roller;
the eccentric device includes an eccentric unit, and a pull lever, wherein the eccentric unit of the eccentric device is secured on the support rack, and the pull lever of the eccentric device has a first end connected to the eccentric unit of the eccentric device, and a second end secured on the main body; and
the finishing device is operated to drive the eccentric device to move synchronously, so that the first roller is oscillated by movement of the eccentric device.
2. The sand-belt finishing machine having a reciprocal movement mechanism in accordance with claim 1, wherein the finishing device and the eccentric device are operated by the same power source.
3. The sand-belt finishing machine having a reciprocal movement mechanism in accordance with claim 1, wherein the eccentric unit of the eccentric device includes a worm, and a worm wheel co-operating with the worm.
4. The sand-belt finishing machine having a reciprocal movement mechanism in accordance with claim 3, wherein the first end of the pull lever of the eccentric device is eccentrically mounted on the worm wheel of the eccentric unit of the eccentric device.
US10/285,534 2002-11-01 2002-11-01 Sand-belt finishing machine having a reciprocal movement mechanism Expired - Fee Related US6722966B1 (en)

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US10/285,534 US6722966B1 (en) 2002-11-01 2002-11-01 Sand-belt finishing machine having a reciprocal movement mechanism
GB0313248A GB2402640B (en) 2002-11-01 2003-06-09 Sand-belt finishing machine having an oscillating movement mechanism

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US10/285,534 US6722966B1 (en) 2002-11-01 2002-11-01 Sand-belt finishing machine having a reciprocal movement mechanism
GB0313248A GB2402640B (en) 2002-11-01 2003-06-09 Sand-belt finishing machine having an oscillating movement mechanism

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US20040087260A1 true US20040087260A1 (en) 2004-05-06

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMO20090128A1 (en) * 2009-05-18 2010-11-19 Scm Group Spa METHOD TO SHAPE A SURFACE OF AN OBJECT AND SHAPE SYSTEM
US20120052777A1 (en) * 2010-08-31 2012-03-01 Wen-Chi Chang Wide belt sander

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6899594B1 (en) * 2004-03-30 2005-05-31 Lam Research Corporation Relative lateral motion in linear CMP
US7014544B2 (en) * 2004-06-23 2006-03-21 Wmh Tool Group Hong Kong Limited Reciprocating and deflecting swing device for the roller of a cylindrical emery-polishing machine
TWM561594U (en) * 2017-12-21 2018-06-11 Zhuang Bo Chang Grinding machine with traverse grinding

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US2926465A (en) * 1957-09-05 1960-03-01 Edward S Sommers Oscillating belt sanders
US3577684A (en) * 1968-12-30 1971-05-04 Barnes Drill Co Abrading machine with steering roll and tensioned abrading belt
US4267671A (en) * 1978-08-24 1981-05-19 Contraves Goerz Corporation Positioning of an abrasive belt on a grinding machine
US4864775A (en) * 1988-05-16 1989-09-12 Timesavers, Inc. Cross-belt sanding machine with oscillating platen means
US4939870A (en) * 1989-04-14 1990-07-10 Wang Tien Wang Vertical/horizontal double-way grinding type abrasive belt grinder
US6299512B1 (en) * 1999-05-13 2001-10-09 Alessandro Costa Belt sander with orbitally translated abrasive belt
US6089958A (en) * 1999-05-13 2000-07-18 Costa; Alessandro Belt sander with orbitally translated abrasive belt
US6342000B1 (en) * 2000-05-05 2002-01-29 Jason Yan Sander having a vibrating mechanism
US6471568B1 (en) * 2000-08-14 2002-10-29 Chun-Hsiang Wang Eccentric-swinging device for a sanding machine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMO20090128A1 (en) * 2009-05-18 2010-11-19 Scm Group Spa METHOD TO SHAPE A SURFACE OF AN OBJECT AND SHAPE SYSTEM
EP2253428A1 (en) * 2009-05-18 2010-11-24 SCM Group S.p.A. Method and apparatus for abrading a surface of an object
US20120052777A1 (en) * 2010-08-31 2012-03-01 Wen-Chi Chang Wide belt sander

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Publication number Publication date
GB2402640B (en) 2006-01-25
GB2402640A (en) 2004-12-15
GB0313248D0 (en) 2003-07-16
US6722966B1 (en) 2004-04-20

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