US3872627A - Wide belt sanding machine with improved dust collector - Google Patents

Wide belt sanding machine with improved dust collector Download PDF

Info

Publication number
US3872627A
US3872627A US440391A US44039174A US3872627A US 3872627 A US3872627 A US 3872627A US 440391 A US440391 A US 440391A US 44039174 A US44039174 A US 44039174A US 3872627 A US3872627 A US 3872627A
Authority
US
United States
Prior art keywords
belt
air supply
supply duct
abrasive belt
air
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US440391A
Other languages
English (en)
Inventor
Gordon L Schuster
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Timesavers Inc
Original Assignee
Timesavers Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Timesavers Inc filed Critical Timesavers Inc
Priority to US440391A priority Critical patent/US3872627A/en
Priority to CA201,477A priority patent/CA999745A/en
Priority to JP49094670A priority patent/JPS50110189A/ja
Priority to DE2502806A priority patent/DE2502806C3/de
Application granted granted Critical
Publication of US3872627A publication Critical patent/US3872627A/en
Priority to JP1978014313U priority patent/JPS5413676Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • 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
    • B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
    • B24B55/06—Dust extraction equipment on grinding or polishing machines
    • B24B55/08—Dust extraction equipment on grinding or polishing machines specially designed for belt grinding machines
    • 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
    • B24B21/06—Machines or devices using grinding or polishing belts; Accessories therefor for grinding plane surfaces involving members with limited contact area pressing the belt against the work, e.g. shoes sweeping across the whole area to be ground
    • B24B21/08—Pressure shoes; Pressure members, e.g. backing belts

Definitions

  • This invention relates to abrading machines and refers more particularly to endless abrasive belt sanding machines of the type widely used in the woodworking industry.
  • Such machines usually have a vertically oriented abrading head with a wide endless abrasive belt trained over a power driven contact drum at the bottom and an idler belt tensioning roll at the top, so that the belt has upwardly and downwardly traveling stretches.
  • the contact drum holds the belt against the work passing through the machine.
  • the abrasion of the work by the rapidly traveling belt generates an enormous amount of dust. Accordingly, it is an absolute necessity that sanding machines be equipped with dust collecting systems.
  • the dust collecting systems of sanding machines consist simply of a cyclone separator and two suction ducts, one leading to the separator from a suction mouth located in the machine near the zone of action and the other connecting a hood over the top of the abrading head with the separator.
  • the cyclone separators were usually mounted on the roof of the building in which the sanding machines were housed, or at least were so located that the air leaving the separator and theoretically freed of dust was discharged into the atmosphere. Since that air was not in fact free of minute dust particles, it constituted a serious source of air pollution. Government regulations no longer countenance that practice, and to meet those regulations the air debouching from the separators now must be ducted to a bag room where it enters huge vacuum cleaner bags that filter the tiny air-entrained particles from the air before it is permitted to enterthe atmosphere. The power required to push the air through the walls of the collector bags increases as the volume of air moved rises, so that any significant reduction in that volume would result in increased efficiency.
  • Another object of this invention aimed at improving the efficiency of the dust collecting systems of sanding machines, is to use the same air stream to remove dust and products of abrasion from the region at the top of the abrading head as well as from the zone of action at the bottom of the abrading head, and to that end the dust collector of this invention features an air supply duct that overlies the entire upwardly traveling stretch of the abrasive belt and has its inlet defined by a curved hood that embraces the belt tensioning roll at the top of the abrading head.
  • the invention Since the overall height of the abrading head in a sanding machine depends upon the length of its abrasive belt, and since that dimension will vary from belt to belt, the invention has as another of its objects to connect the curved air inlet hood with the air supply duct into which it discharges in a manner that enables the hood to ride up and down with changes in the elevation of the top of the abrading head, so that a predetermined positional relationship can be maintained therebetween regardless of the length of the abrasive belt.
  • the present invention has as another of its objectives to provide means for closing the mouth of the suction duct.
  • FIG. 1 is a perspective view of a sanding machine equipped with the dust collecting system of this invention
  • FIG. 2 is a side view of the machine with parts broken away and in section;
  • FIG. 3 is a sectional view through the lower end portion of the air supply and suction ducts and showing the relationship thereof to the contact drum-supported abrasive belt;
  • FIG. 4 is a perspective view of the air supply and suction duct assembly, viewing the same from the side that faces the upwardly traveling stretch of the abrasive belt;
  • FIG. 5 is a perspective view of the structure shown in FIG. 4, but viewing the same from the opposite side;
  • FIG. 6 is a side view similar to FIG. 2, but illustrating an additional feature of the invention.
  • the numeral designates generally the main frame of a wide belt sanding machine, in the upper portion of which there is a conventional abrading head 11 and below it a work feeding assembly 12.
  • the main frame which is preferably a weldment has a base section 14 and spaced side sections 15 and 16 rising therefrom. Rigidly fixed to the side section 16 and extending cantilever fashion therefrom towards the other side of the machine is a horizontal arm 17, which in the industry is known as a center bar. It is the center bar that carries the abrading head.
  • the abrading head Since the abrading head is conventional, it comprises an endless abrasive belt 18 trained over a contact drum 19 at the bottom of the head and an idler roll 20 at the top. As shown and described in the Bernu Pat. No. 3,777,442, which is issued to the assignee of the present invention, the contact drum 19 is journaled in bearings that are fixed to and project down from the center bar, and the idler roll 20 is journaled in bearings 21 on the arms of a yoke 22 that is supported above the center bar by the ram 23 of an air cylinder mounted on the center bar. In this manner, the idler roll 20 can be raised to tension the abrasive belt and lowered to enable the same to be removed and replaced when necessary.
  • the contact drum 19 at the bottom of the abrading head is drivingly connected with a motor (not shown) and imparts high speed orbital motion to the abrasive belt in the counterclockwise direction, as viewed in FIGS. 2 and 3.
  • the belt thus has upwardly and downwardly traveling stretches indicated by the arrows U and D in FIG. 2.
  • the elevation of work feeding assembly 12 is adjustable to accommodate different thicknesses of work.
  • the mechanism by which that adjustment is made comprises a plurality ofjack screws on which the assembly 12 is supported and which are simultaneously actuatable by rotation ofa handwheel 25.
  • the workpieces one of which is shown in FIG. 2 are gripped between superimposed top and bottom pinch rolls 26 and 27 respectively, the former being mounted in the main frame of the machine at the infeed and outfeed sides of the abrading head and the latter being part of the work feeding assembly.
  • the upper pinch rolls are yieldingly biased downwardly to press the work against the work feeding conveyor belt.
  • infeed and outfeed pressure shoes 28 and 29, respectively to hold the work down as close as possible to the line of contact between the abrasive belt and the workpiece as the latter first comes into contact with the belt and as it leaves the same.
  • These shoes are mounted between side plates that are a fixed part of the machine frame, and extend across the entire width of the abrasive belt. Like the top pinch rolls, the work engaging toe portions of the shoes are yieldingly pressed against the work.
  • the infeed shoe 28 has a concave curved surface relatively close to the adjacent portion of the abrasive belt. While that relationship is not new, its existence is utilized in achieving one of the objectives of the invention, as will appear as the description proceeds.
  • the dust and products of abrasion generated by the machine in operation are drawn from the zone of action through a suction duct 30 that has its mouth 31 closely adjacent to the bottom of the abrading head, and its discharge end connected by a pipe 32 with a cyclone separator (not shown).
  • the separator provides a source of suction to draw the dust and products of abrasion into the mouth 31 of the suction duct, as it did in all prior dust collecting systems.
  • the present invention not only controls the admission of make-up air to that zone but, in addition, utilizes its entry to sweep dust and products of abrasion off of the abrasive belt.
  • the make-up air is fed to the zone of action through an upright air supply duct 33 that overlies and is coextensive in size and shape with the upwardly traveling stretch of the abrasive belt.
  • the inlet to this air supply duct is defined by a curved hood 33 that embraces the belt tensioning roll 20 at the top of the abrading head, and its outlet is directly above the mouth 31 of the suction duct.
  • the air supply duct 33 has flat front and rear walls 34 and 35, respectively, connected by narrow, parallel side walls 36, and as best seen in FIGS. 4 and 5 the two ducts are joined together into a unitary structure with the rear wall 35 of the air supply duct forming the front wall of the suction duct. Since the pipe 32 that leads to the cyclone separator is round, the side walls 37 of the suction duct converge toward the top of the duct and its rear wall 38 diverges from the wall 35 so that the cross sectional area of the suction duct remains substantially uniform from top to bottom. A transition section 39 at the top of the suction duct gradually changes its cross sectional shape from rectangular to round to make possible its connection to the pipe 32. j
  • the unitary duct structure comprising the joined air supply and suction ducts is suitably mounted in the machine with the front wall 34 of the air supply duct closely adjacent to and parallel with the upwardly traveling stretch of the abrasive belt and the transition section 39 of the suction duct protruding from the top of the machine. This places the top of the air supply duct at a level near that of the axis of the belt tensioning roll 20 when the abrasive belt is of average length, but since belt length varies, the elevation of the roll 20 will change accordingly.
  • the curved hood 33 which defines the inlet to the air supply duct to occupy a predetermined position with respect to the top of the abrading head, it is hingedly connected, as at 40, to the back wall 35 of the air supply duct and rests on castors mounted in brackets 41 that are fixed to the bearings 21 in which the roll is journaled.
  • the bottom wall 42 of the curved hood will always be spaced the same distance above the top of the abrading head, despite variations in the elevation of the roll 20; and to assure continuity between the hood and the air supply duct, the discharge end of the former extends a short distance into the top of the air supply duct.
  • a deflector unit 44 is secured at its ends to the side walls of the hood and spans the distance therebetween ahead of the front edge 43 of the hood bottom wall.
  • the mouth of the suction duct is located in the zone where the dust and products of abrasion are generated, most of it by far is drawn into the suction duct, but that which is not will be carried along by the upwardly traveling stretch of the abrasive belt.
  • the air supply duct coacts with the belt to confine the rising dust particles to a path that leads to the region above the abrading head from which the make-up air is drawn. For all practical purposes, therefore, all of the dust and products of abrasion that are generated during the operation of the machine are carried into the suction duct by the same air stream.
  • the zone from which the mouth of the suction duct draws the air and the air-entrained dust and products of abrasion is substantially closed against entry of air thereto, except through the air supply duct 33.
  • the side wall 36 of the air supply duct at the far side of the machine in FIGS. 2 and 3 has an extension 45 with a convexly curved bottom edge 46 that lies closely adjacent to the concavely curved top surface of the infeed shoe 28.
  • this extension is hingedly mounted, as at 47, to enable the same to be lifted when access to the suction zone is necessary.
  • the infeed shoe 28 and the downward extensions 45 and 47 of the side walls of the air supply duct thus coact with one another and with the adjacent abrasive belt to restrict unwanted entry of air into the suction zone, and to further guard against such unwanted entry of air into the suction zone, the side walls and back wall of the suction duct project downwardly far enough to coact with the extensions 46 and 47 and with the infeed shoe.
  • the air supply duct is reduced in cross section to increase the velocity of the discharging make-up air.
  • This reduction or constriction results essentially from the securement of a shallow V-shaped wall section 50 to the inside surface of the front wall 34 of the air supply duct.
  • This V-shaped wall section extends from side wall to side wall of the air supply duct and has its downstream flange 51 extended beyond the bottom edge of the front wall 34 to define the upper edge of the narrow elongated outlet of the air supply duct.
  • the underside of the flange 51 has a shield 51' of nonsparking metal applied to it.
  • This shield which extends across the full width of the abrasive belt, is closely adjacent to the belt, the spacing therebetween being on the order of one-eighth of an inch. Accordingly, dust and products of abrasion are stripped off of the upwardly traveling stretch of the belt by the shield 51.
  • the bottom edge of the narrow elongated outlet of the air supply duct is formed by a rectangular wall or plate 52 that is hingedly connected to a pair of brackets 53 suitably fixed to the frame of the machine in embracing relation with the air supply and suction ducts. These brackets also form part of the structure by which the air supply and suction duct assembly is mounted.
  • the hinged mounting of the plate 52 comprises a rod 54 that is welded to one edge of the plate and has its end portions journaled in holes in the brackets 53.
  • the plate 52 spans the distance between the side walls 36 of the air supply duct, so that by virtue of its hinged mounting the plate forms a damper common to both the outlet of the air supply duct and the mouth of the suction duct. In fact, this damper separates the two ducts from one another at the point of their communication.
  • the rod 54 Being located inwardly of the rear wall 35 of the air supply duct and opposite the V-shaped wall section 50, the rod 54 coacts with the apex of the V-shaped wall section to form the constriction by which the velocity of the air discharging from the air supply duct is increased.
  • the bottom edge portion of the rear wall 35 is bent forwardly and then upwardly at an angle to form a sloping wall section 55 that lies opposite the upper flange of the V-shaped wall section 50, and is in downward convergent relation therewith.
  • a thin resiliently flexible metal strip 56 fixed to the sloping wall section 55 and projecting downwardly therefrom, assures against loss of make-up air through the inevitable clearance between the rod 54 and the bottom of the rear wall 35.
  • a lever 57 fixed to one end of the rod 54 and connected with the piston of an air cylinder 58 by a link 59 provides power means for swinging the damper 52 between its normal or open position shown in full lines in FIG. 3 and a closed position indicated in dotted lines. In the latter of these positions, the damper essentially closes the mouth of the suction duct to prevent entry intothat duct of extraneous matter that could cause highly dangerous consequences. This is therefore a very advantageous and valuable feature of the invention, since it greatly minimizes the tire hazard by excluding from the suction duct hot fragments of a broken belt that could ignite the dust in a flash.
  • valves that govern connection of the air cylinder with a source of air pressure can be left entirely to manual control, it is preferable to employ for that purpose an automatic control that is responsive to strategically located sensing means which detect the occurrence of accidents such as breakage of the abrasive belt, and even manual shut-down of the machine. Since such controls can be of any conventional type, they have not been illustrated, but merely indicated by the box AC in FIG. 2.
  • the damper 52 In its normal open position, the damper 52 is parallel to the lower flange 51 of the V-shaped wall section 50 and coacts therewith to direct the high velocity air debouching from the air supply duct against the area of the upwardly traveling stretch of the abrasive belt that lies just above the line of tangency between the belt and the contact drum.
  • the angle at which the air forcibly impinges upon the abrasive belt has been found to be critical. It should be between 38 and 45, as indicated in FIG. 3.
  • the damper With the damper in its normal open position, its free edge is close to the abrasive belt and coacts therewith to define a restricted throat through which the air must pass to reach the mouth of the suction duct and, in doing so, the air exerts a powerful wiping action on the belt surface.
  • that edge has a smooth surfaced shield 60 applied thereto and, for protection against sparking, this shield is formed of aluminum.
  • the medial portion of the shield which embraces the edge of the damper is convexly curved to eliminate abrupt changes in direction of the air flow.
  • the abrading head is enclosed in a cabinet-like housing 61 having upright walls fixed to the frame of the machine and a hinged door 62 which, when open, affords access not only to the abrading head for removal and replacement of sanding belts, but also to the dust collector and its appurtenances.
  • the air supply and suction ducts connected as they are into a unitary structure are fixedly mounted which makes the placement and removal of abrasive belts slightly difficult.
  • the duct structure can be mounted to swing from its operative position to a retracted position spaced farther away from the abrading head, as in FIG. 6.
  • the duct structure is carried by upper and lower paired arms 65 and 66, respectively, that are pivoted to brackets fixed to the frame of the machine.
  • An air cylinder 67 suitably mounted at each side of the machine with its piston connected to the adjacent lower arm 66 through a link 68, provides power means to shift the duct structure from .one position to the other.
  • B. means at the outlet of the air supply duct to cause the air issuing therefrom to impinge upon the abrasive belt in a zone located a short distance above the bottom of the upwardly traveling stretch of the belt;
  • a suction duct connectable with a source of suction and having its mouth contiguous to the outlet of the air supply duct to draw air, dust and the products of abrasion from said zone;
  • closure means coacting with the abrasive belt to restrict access to said zone and thereby minimize the possibility of air entering said zone except through the air supply duct.
  • the outlet of the air supply duct is a narrow slot with parallel upstream and downstream edges that extend across the width of the abrasive belt, the upstream edge being spaced from but sufficiently close to the upwardly traveling stretch of the abrasive belt to enable said edge to effect removal of dust and products of abrasion carried along by the belt and to cause the same to be entrained by the air issuing from the outlet of the air supply duct; and wherein the mouth of said suction duct is directly below the outlet of the air supply duct and extends across the width of the abrasive belt and communicates with said zone through the space between the mouth of the suction duct and the abrasive belt.
  • the means at the outlet of the air supply duct that causes the air issuing therefrom to im' pinge upon the abrasive belt is a substantially rectangular wall with opposite top and bottom edges and opposite end edges, the bottom edge of said substantially rectangular wall being the downstream edge'of the outlet of the air supply duct.
  • the invention defined by claim 4 wherein the size of the mouth of the suction duct is determined by the distance the bottom edge of said substantially rectangular wall is from the abrasive belt; and further characterized by hinge means at an elevation above that of the upstream edge of the outlet of the air supply duct connected with the top edge of said substantially rectangular wall to mount said wall for swinging motion between a wide open position in which its bottom edge is close to the abrasive belt and the mouth of the suction duct is of maximum size and a closed position in which said bottom edge is remote from the abrasive belt and the mouth of the suction duct is essentially closed.
  • an abrading machine having an abrading head with a power driven endless abrasive belt and a backup 1 member engaging the back of the belt to hold the same against the surface of a workpiece being abraded, and also having a suction duct to carry off dust and products of abrasion incident to operation of the machine, said machine being characterized by:
  • A. means mounting said suction duct with its mouth closely adjacent to the backup member and hence at the source of the dust and products of abrasion;
  • a movable door adjacent to the outlet of the air supply duct and the mouth of the suction duct operable in one position thereof to direct the air issuing from the outlet of the air supply duct against the adjacent surface of the abrasive belt and in another position to close said mouth-and thereby prevent entry into the suction duct of extraneous matter capable of causing objectionable consequences if permitted to enter the suction duct;
  • the abrading machine of claim 10 further characterized by:
  • means including said movable door to cause the air debouching from the air supply duct to forcibly impinge upon the upwardly traveling stretch of the abrasive belt.
  • a suction duct having an outlet connectable with a source of suction and a mouth through which airentrained dust and products of abrasion are drawn into the suction duct when the machine is in operation;
  • D. means joining said ducts into a unitary structure with the exit of the curved air inlet duct opening into the inlet end of the air supply duct and with the suction duct overlying said outer wall of the air supply duct and its mouth contiguous to the outlet end of the air supply duct;
  • E. means mounting said unitary structure in an operative position adjacent to the abrading head, in which position said inner wall of the air supply duct overlies and is closely adjacent to the upwardly traveling stretch of the abrasive belt, the curved air inlet duct embraces the belt tensioning roll and the entrance thereof is positioned to receive air from the space surrounding the belt tensioning roll and also receive air-entrained dust and products of abrasion leaving the passing abrasive belt, and the outlet end of the air supply duct and the mouth of the suction duct are contiguous to the backup member at the bottom of the abrading head, so that the same air moving through the ducts carries away dust and products of abrasion from both the zone of action where the abrasion takes place and from the zone at the top of the abrading head.
  • a suction duct connectable with a source of suction and having its mouth contiguous to the outlet of the air supply duct to draw air, dust and products of abrasion from said zone;
  • closure means coacting with the abrasive belt to restrict access to said zone and thereby minimize the possibility of air entering said zone except through the air supply duct.
  • the air supply duct coacts with the upwardly traveling stretch of the abrasive belt to form a passage through which dust and products of abrasion that are carried along by the upwardly traveling stretch of the belt reach the zone in which the belt tensioning roll is located.
  • the inlet of the air supply duct is at a fixed level near the line of tangency between the upwardly traveling stretch of the abrasive belt and the belt tensioning roll
  • said inlet having a narrow oblong shape, the long margins of which are generally parallel to the axis of the belt tensioning roll and extend for substantially the width of the abrasive belt, one of said long margins being farther from the belt than the other,
  • said structure connected with the inlet of the air supply duct comprises a hood embracing the top of the belt tensioning roll
  • said hood having an inlet and an outlet and being defined in part by a top wall which is joined to said long margin that is farthest from the belt.
  • hood has top and bottom curved walls connected by opposite side walls to form a curved extension of the upright air supply duct
  • the hood having an inlet remote from its connection with said upright air supply duct, and the bottom curved wall of the hood being relatively close to the cylindrical surface of the belt tensioning roll.
  • hood has a hinged connection with the top of said upright duct, the axis of that hinged connection being substantially parallel to the axis of the belt tensioning roll, and the hood being free to rock about the axis of its hinged connection with the upright duct, and further characterized by support means at the top of the abrading head and fixed with respect to the axis of the belt tensioning roll,

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Grinding-Machine Dressing And Accessory Apparatuses (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Auxiliary Devices For Machine Tools (AREA)
US440391A 1974-02-07 1974-02-07 Wide belt sanding machine with improved dust collector Expired - Lifetime US3872627A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US440391A US3872627A (en) 1974-02-07 1974-02-07 Wide belt sanding machine with improved dust collector
CA201,477A CA999745A (en) 1974-02-07 1974-06-03 Wide belt sanding machine with improved dust collector
JP49094670A JPS50110189A (cs) 1974-02-07 1974-08-20
DE2502806A DE2502806C3 (de) 1974-02-07 1975-01-24 Enteisungsvorrichtung für Breitbandschleifmaschinen
JP1978014313U JPS5413676Y2 (cs) 1974-02-07 1978-02-07

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US440391A US3872627A (en) 1974-02-07 1974-02-07 Wide belt sanding machine with improved dust collector

Publications (1)

Publication Number Publication Date
US3872627A true US3872627A (en) 1975-03-25

Family

ID=23748574

Family Applications (1)

Application Number Title Priority Date Filing Date
US440391A Expired - Lifetime US3872627A (en) 1974-02-07 1974-02-07 Wide belt sanding machine with improved dust collector

Country Status (4)

Country Link
US (1) US3872627A (cs)
JP (2) JPS50110189A (cs)
CA (1) CA999745A (cs)
DE (1) DE2502806C3 (cs)

Cited By (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4151705A (en) * 1977-10-13 1979-05-01 Kimwood Corporation Combination ram biased board hold-down and exhaust infeed
US4205490A (en) * 1978-06-15 1980-06-03 Kimwood Corporation Vertically shiftable belt cleaner
US4255169A (en) * 1979-06-22 1981-03-10 Wheelabrator-Frye Inc. Method of conservation in processing industrial air
US4525955A (en) * 1981-10-20 1985-07-02 Timesavers, Inc. Abrasive belt cleaning system
USD279682S (en) 1982-11-30 1985-07-16 Kwik-Way Manufacturing Corporation Surfacing machine for engine heads or the like
US4594815A (en) * 1983-07-01 1986-06-17 Timesavers, Inc. Abrasive surfacer
US4742650A (en) * 1986-11-07 1988-05-10 Conestoga Wood Specialities, Inc. Sanding machine
USD299033S (en) 1986-04-28 1988-12-20 Steele james f Two drum sander
EP0362832A3 (de) * 1988-10-07 1991-11-27 Michael Weinig Aktiengesellschaft Andruckeinrichtung für eine Bearbeitungsmaschine, vorzugsweise eine Holzbearbeitungsmaschine, insbesondere eine Kehlmaschine
WO1991017864A1 (en) * 1990-05-22 1991-11-28 Hh Patent A/S Woodworking machine, such as a traversing sanding machine
US5097636A (en) * 1990-10-26 1992-03-24 Crouch Machinery, Inc. Edge belt sander with swingable dust hood
US5220750A (en) * 1991-10-23 1993-06-22 Timesavers, Inc. Pressure platen for use in an abrasive finishing machine
USD341843S (en) 1991-03-25 1993-11-30 Woodmaster Tools, Inc. Sanding machine
US5468173A (en) * 1993-09-30 1995-11-21 Winton, Iii; George R. Automatic deburring machine
US6276988B1 (en) * 2000-01-07 2001-08-21 Tung-Chin Chen Fully automatic scrapper grinder
US6315647B1 (en) 1998-08-20 2001-11-13 Pierangelo Ghilardi Sanding machine
US6626743B1 (en) * 2000-03-31 2003-09-30 Lam Research Corporation Method and apparatus for conditioning a polishing pad
WO2005028156A1 (es) * 2003-09-19 2005-03-31 Maria Marin Cuevas Lijadora mejorada
US20050075058A1 (en) * 2003-10-06 2005-04-07 Wang Wang Tien Sand-belt finishing machine having dust clearing function
US20060025047A1 (en) * 2004-07-28 2006-02-02 3M Innovative Properties Company Grading system and method for abrasive article
US20060025045A1 (en) * 2004-07-28 2006-02-02 3M Innovative Properties Company System and method for detecting abrasive article orientation
US20060025048A1 (en) * 2004-07-28 2006-02-02 3M Innovative Properties Company Abrasive article detection system and method
US20080311824A1 (en) * 2007-06-12 2008-12-18 Sacmi Cooperativa Meccanici Imola Societa' Cooperativa Apparatus for smoothing a product, in particular a semi-finished ceramic product
CN102085640A (zh) * 2009-12-04 2011-06-08 山东双轮集团股份有限公司 抛光吸尘装置
CN102729152A (zh) * 2012-07-17 2012-10-17 兴威电脑（昆山）有限公司 一种带有防尘装置的三角拉丝机
CN104308700A (zh) * 2014-10-13 2015-01-28 浙江安吉双虎竹木业有限公司 一种砂光机结构
CN105538102A (zh) * 2016-02-05 2016-05-04 林月洪 金属板柔性抛光打磨设备
CN107160274A (zh) * 2017-07-13 2017-09-15 安徽盛美金属科技有限公司 一种金属板打磨抛光机的吸尘机构
CN107309752A (zh) * 2017-07-13 2017-11-03 安徽盛美金属科技有限公司 一种金属板打磨抛光机的双压辊驱动机构
US20180297171A1 (en) * 2016-11-04 2018-10-18 Boe Technology Group Co., Ltd. Grinding apparatus
CN108838893A (zh) * 2018-06-22 2018-11-20 安徽申泉化工有限公司 一种方便粉尘处理的机械打磨装置
CN109129123A (zh) * 2018-09-28 2019-01-04 柳州市千山木业有限公司 一种板材加工用砂光机
CN110281131A (zh) * 2019-06-04 2019-09-27 邵阳学院 一种抛光打磨生产线
CN110997229A (zh) * 2017-08-04 2020-04-10 豪迈股份公司 具有优化的粉尘抽吸的抽吸设备
CN113857990A (zh) * 2021-10-27 2021-12-31 天津市景泰科技发展有限公司 一种金属板打磨抛光机
CN114193292A (zh) * 2021-12-10 2022-03-18 书香门地集团股份有限公司 一种板材原料处理用砂面装置及砂面方法
US11325171B2 (en) * 2017-02-17 2022-05-10 Samsung Electronics Co., Ltd. Apparatus of manufacturing panel for home appliance and method of manufacturing the home appliance

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52108456A (en) * 1976-03-08 1977-09-10 Dai Ichi Seiko Co Ltd Method and device for cleaning surface of metal molds for plastics
NL7902493A (nl) * 1979-03-30 1980-10-02 Linden Bv Machine Schuurinrichting.
DE8906512U1 (de) * 1989-05-26 1989-07-27 Baugeräte-Union GmbH & Co. Maschinenhandels KG, 8800 Ansbach Bandschleifmaschine
DE4232830C5 (de) * 1992-09-30 2004-08-19 Georg Weber Vorrichtung zum Entfernen von Schleifstaub von Werkstücken in Bandschleifmaschinen
JP2675512B2 (ja) * 1993-07-23 1997-11-12 アミテック株式会社 サンディングマシンの集塵装置
DE10041906B4 (de) * 2000-08-25 2011-06-09 Hilti Aktiengesellschaft Schleifgerät mit Staubabsaugung
KR100864052B1 (ko) * 2007-03-14 2008-10-16 화천기계공업주식회사 수직형 머시닝센터
DE202019000538U1 (de) 2019-02-05 2019-05-09 Vesch Technologies GmbH Entstaubungsanlage
CN110883650B (zh) * 2019-12-08 2021-05-07 江西新森岱塑木科技有限公司 一种便于集尘的塑木打磨机
CN111958423B (zh) * 2020-08-28 2021-07-06 湖南城建职业技术学院 一种旧城改造用建筑墙体省料涂料翻新机

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2064476A (en) * 1931-07-25 1936-12-15 Gustave T Johnson Abrading machine
US2170324A (en) * 1937-09-15 1939-08-22 Hanna Samuel Orr Dust evacuating device
US2232149A (en) * 1937-10-16 1941-02-18 Delta Mfg Co Belt sander
US2336004A (en) * 1940-07-29 1943-12-07 Bert F Fowler Method of and apparatus for collecting dust
US3616745A (en) * 1969-10-01 1971-11-02 James C Russell Sr Automatic damper control

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2064476A (en) * 1931-07-25 1936-12-15 Gustave T Johnson Abrading machine
US2170324A (en) * 1937-09-15 1939-08-22 Hanna Samuel Orr Dust evacuating device
US2232149A (en) * 1937-10-16 1941-02-18 Delta Mfg Co Belt sander
US2336004A (en) * 1940-07-29 1943-12-07 Bert F Fowler Method of and apparatus for collecting dust
US3616745A (en) * 1969-10-01 1971-11-02 James C Russell Sr Automatic damper control

Cited By (46)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4151705A (en) * 1977-10-13 1979-05-01 Kimwood Corporation Combination ram biased board hold-down and exhaust infeed
US4205490A (en) * 1978-06-15 1980-06-03 Kimwood Corporation Vertically shiftable belt cleaner
US4255169A (en) * 1979-06-22 1981-03-10 Wheelabrator-Frye Inc. Method of conservation in processing industrial air
US4525955A (en) * 1981-10-20 1985-07-02 Timesavers, Inc. Abrasive belt cleaning system
USD279682S (en) 1982-11-30 1985-07-16 Kwik-Way Manufacturing Corporation Surfacing machine for engine heads or the like
US4594815A (en) * 1983-07-01 1986-06-17 Timesavers, Inc. Abrasive surfacer
USD299033S (en) 1986-04-28 1988-12-20 Steele james f Two drum sander
US4742650A (en) * 1986-11-07 1988-05-10 Conestoga Wood Specialities, Inc. Sanding machine
EP0362832A3 (de) * 1988-10-07 1991-11-27 Michael Weinig Aktiengesellschaft Andruckeinrichtung für eine Bearbeitungsmaschine, vorzugsweise eine Holzbearbeitungsmaschine, insbesondere eine Kehlmaschine
US5156257A (en) * 1990-05-22 1992-10-20 Hh Patent A/S Woodworking machine, such as a traversing sanding machine
WO1991017864A1 (en) * 1990-05-22 1991-11-28 Hh Patent A/S Woodworking machine, such as a traversing sanding machine
US5097636A (en) * 1990-10-26 1992-03-24 Crouch Machinery, Inc. Edge belt sander with swingable dust hood
USD341843S (en) 1991-03-25 1993-11-30 Woodmaster Tools, Inc. Sanding machine
US5220750A (en) * 1991-10-23 1993-06-22 Timesavers, Inc. Pressure platen for use in an abrasive finishing machine
US5468173A (en) * 1993-09-30 1995-11-21 Winton, Iii; George R. Automatic deburring machine
US6315647B1 (en) 1998-08-20 2001-11-13 Pierangelo Ghilardi Sanding machine
US6276988B1 (en) * 2000-01-07 2001-08-21 Tung-Chin Chen Fully automatic scrapper grinder
US6626743B1 (en) * 2000-03-31 2003-09-30 Lam Research Corporation Method and apparatus for conditioning a polishing pad
WO2005028156A1 (es) * 2003-09-19 2005-03-31 Maria Marin Cuevas Lijadora mejorada
ES2231003A1 (es) * 2003-09-19 2005-05-01 Maria Marin Cuevas Lijadora mejorada.
ES2231003B1 (es) * 2003-09-19 2007-03-01 Maria Marin Cuevas Lijadora mejorada.
US20050075058A1 (en) * 2003-10-06 2005-04-07 Wang Wang Tien Sand-belt finishing machine having dust clearing function
US20060025045A1 (en) * 2004-07-28 2006-02-02 3M Innovative Properties Company System and method for detecting abrasive article orientation
US20060025048A1 (en) * 2004-07-28 2006-02-02 3M Innovative Properties Company Abrasive article detection system and method
WO2006019834A1 (en) * 2004-07-28 2006-02-23 3M Innovative Properties Company Abrasive article detection system and method
US7090560B2 (en) 2004-07-28 2006-08-15 3M Innovative Properties Company System and method for detecting abrasive article orientation
US20060025047A1 (en) * 2004-07-28 2006-02-02 3M Innovative Properties Company Grading system and method for abrasive article
US20080311824A1 (en) * 2007-06-12 2008-12-18 Sacmi Cooperativa Meccanici Imola Societa' Cooperativa Apparatus for smoothing a product, in particular a semi-finished ceramic product
CN102085640A (zh) * 2009-12-04 2011-06-08 山东双轮集团股份有限公司 抛光吸尘装置
CN102085640B (zh) * 2009-12-04 2012-10-10 山东双轮股份有限公司 抛光吸尘装置
CN102729152A (zh) * 2012-07-17 2012-10-17 兴威电脑（昆山）有限公司 一种带有防尘装置的三角拉丝机
CN104308700B (zh) * 2014-10-13 2016-08-24 浙江安吉双虎竹木业有限公司 一种砂光机结构
CN104308700A (zh) * 2014-10-13 2015-01-28 浙江安吉双虎竹木业有限公司 一种砂光机结构
CN108818243A (zh) * 2016-02-05 2018-11-16 林月洪 用柔性抛光技术制备医疗不锈钢板的装备及工艺
CN105538102A (zh) * 2016-02-05 2016-05-04 林月洪 金属板柔性抛光打磨设备
CN108747741A (zh) * 2016-02-05 2018-11-06 林月洪 医用不锈钢板的制备设备
US20180297171A1 (en) * 2016-11-04 2018-10-18 Boe Technology Group Co., Ltd. Grinding apparatus
US11325171B2 (en) * 2017-02-17 2022-05-10 Samsung Electronics Co., Ltd. Apparatus of manufacturing panel for home appliance and method of manufacturing the home appliance
CN107309752A (zh) * 2017-07-13 2017-11-03 安徽盛美金属科技有限公司 一种金属板打磨抛光机的双压辊驱动机构
CN107160274A (zh) * 2017-07-13 2017-09-15 安徽盛美金属科技有限公司 一种金属板打磨抛光机的吸尘机构
CN110997229A (zh) * 2017-08-04 2020-04-10 豪迈股份公司 具有优化的粉尘抽吸的抽吸设备
CN108838893A (zh) * 2018-06-22 2018-11-20 安徽申泉化工有限公司 一种方便粉尘处理的机械打磨装置
CN109129123A (zh) * 2018-09-28 2019-01-04 柳州市千山木业有限公司 一种板材加工用砂光机
CN110281131A (zh) * 2019-06-04 2019-09-27 邵阳学院 一种抛光打磨生产线
CN113857990A (zh) * 2021-10-27 2021-12-31 天津市景泰科技发展有限公司 一种金属板打磨抛光机
CN114193292A (zh) * 2021-12-10 2022-03-18 书香门地集团股份有限公司 一种板材原料处理用砂面装置及砂面方法

Also Published As

Publication number Publication date
DE2502806C3 (de) 1978-08-10
DE2502806A1 (de) 1975-08-14
DE2502806B2 (de) 1977-12-15
JPS50110189A (cs) 1975-08-29
JPS5413676Y2 (cs) 1979-06-09
CA999745A (en) 1976-11-16
JPS53127688U (cs) 1978-10-11

Similar Documents

Publication Publication Date Title
US3872627A (en) Wide belt sanding machine with improved dust collector
US3286406A (en) Method and apparatus for abrading
CA1141509A (en) Cleaning machine
US5794304A (en) Sweeping machine with dust extraction
CN1066647C (zh) 在轧机机架的出料装置中用于缝隙的无接触密封装置
US5313688A (en) Fiber waste separator including carriers, movable covers, and suction hood
EP0005604A1 (en) A surface cleaning machine
GB1536807A (en) Machines for blast cleaning pipes and similar cylindrical objects
JPH0335997A (ja) 走行する帯状材料を断裁するための装置
US7147724B2 (en) Cleaning device for a longitudinal cutting device and method for cleaning the device
US3008274A (en) Blasting machine
CA1179140A (en) Apparatus for separating abrasive blasting media from debris
US3142107A (en) Selvage uncurler attachments
JP4308960B2 (ja) 紡績準備装置における、綿花の如き繊維材料を開繊する高速ローラで不純物を分離する装置
GB2046624A (en) Dust control in mines and tunnels
JPH0639722A (ja) 長く延在した構造用部材用のショットブラスト装置
US4815171A (en) Sliver coiler for a carding machine
JP3472572B2 (ja) フライング式のロール交換に続いてフラップを短くするための方法および装置
CN210850538U (zh) 一种带有纸屑收集装置的纸板分切机
US2527003A (en) Grinding machine
US4074391A (en) Crush roll plenum for carding machines
US2301351A (en) Apparatus for disposing of dust
JP4001351B2 (ja) ダスト除去装置
CN217779048U (zh) 一种具有防绕带的led芯片编带机
US2948968A (en) Method and apparatus for removing liquids from glass plates