摘要:
An acrylic polisher includes: a base with two oppositely disposed sideboards with a notch on each of them and a disposition surface in between, a cutting blade set performing a cutting process along the edge of the disposition surface, a stopping board driven by a driving device to move up and downs with respect to the disposition surface. When the stopping board moves downward to the side of the disposition surface, a machining span is formed between the stopping board and the disposition surface. Therefore, as the stopping board lowers to the side of the base, the operator only needs to push an acrylic object toward the stopping board and can quickly obtain the required machining span. The notches on the sideboards of the base form an open space around the disposition surface. The length of the acrylic object is thus not restricted.
摘要:
A grinding apparatus has a cylindrical grinding wheel assembly mounted on a vertical drive shaft extending from an electric motor through a horizontal work table. The apparatus includes a pressure sensitive electrical switch for activating the motor in response to downward force on the work table. The work table is supported on a housing adapted to contain the motor and can be interchanged with work tables of various sizes. The grinding wheel assembly has a drive half and a grinding wheel half driven by the drive shaft.
摘要:
The finishing machine of the present invention includes a drive assembly for moving a coated object longitudinally across a base at a predetermined speed and a finishing assembly connected to the base to contact at least a portion of the coating as the object moves across the base to raise the temperature of the coating to about its thermoplastic range for a predetermined time and to finish the coating during that time to a desired uniform finish. The finishing assembly includes a revolving brush having nylon bristles impregnated with a suitable abrasive. For moldings, the brush is mounted to a frame which is adjustable above the base to vary the height of the brush above the base and its angle with respect to the base. Edge finishing brushes may also be included on the base for finishing edges of the object as it passes through the machine. The method and apparatus are suitable for small objects, such as moldings, or large objects, such as doors. Large objects float between horizontally spaced, vertical brushes for uniform application of pressure.
摘要:
Embodiments of the invention abrade the information bearing surface of a compact disc (CD), DVD or other digital information bearing disk, in order to render it unreadable by standard consumer grade disk readers. This is accomplished via embodiments of the invention that are extremely lightweight, highly portable and inexpensive. Embodiments may or may not employ an outer case in order to retain the remnants of the abraded information layer of the disk. In order to operate one embodiment of the invention, the apparatus is opened and a compact disc is inserted with the face of the disk against the abrasive mechanism. After closing the apparatus, the outer housing of the apparatus is rotated with sufficient pressure against the abrasive mechanism in order to cause the substrate to be damaged sufficiently to render it unreadable by consumer based disk readers. The apparatus can be opened over a trash bin in order to empty both the disk and the particulate matter generated by the abrasive process. The apparatus may be rotated by hand or by motor in various embodiments. A case-less embodiment of the invention exists that comprises the abrasive mechanism and a post that fits into the center hole of the disk. Since there is no outer case coupled to the apparatus in this embodiment, the embodiment may be held over a trash bin while abrading the disk in order to dispose of the particulate matter resulting from the abrading process. In order to operate this embodiment, a disk is inserted into the opening between the abrader and post supporter and the post engages the hole in the center of the disk. The disk is then rotated in order to abrade the information bearing portion of the disk. When the disk has been abraded to the satisfaction of the user, the disk is disengaged from the post and the disk is removed and disposed of.
摘要:
A method of flattening projections on a sheet material having fine projections on a surface thereof, which protrude from a flat portion of the sheet material, said method comprising partially immersing a rod member, which has a surface having a polishing capability, into a liquid, rotating the rod member so as to form a film of the liquid on the surface of the portion of the rod member, which is exposed above the surface of the liquid, and conveying the sheet material in one direction while contacting a surface of the sheet material with the film, thus polishing the projections.
摘要:
A grinding wheel assembly to be mounted on a vertical drive shaft extending from an electric motor through a horizontal table of a grinding apparatus. The grinding wheel assembly includes a core element that is rigidly secured to the drive shaft. A drop-on cylindrical grinding bit of the grinding bit assembly is slidably engaged onto a cylindrical portion of the core element. A slot is formed in the cylindrical portion of the core element and a ridge is formed on the internal bore of the grinding bit so that when the grinding bit is placed on the core element, the grinding bit will rotate upon rotation of the drive shaft.
摘要:
An apparatus is provided for removing material from the sidewall of a tire. The apparatus may be used for removing the thin layer of black rubber that normally covers the white letters or white stripe of the sidewall of a newly cured tire, and for buffing the surfaces of such white letters or stripes to give them a smooth finish. The apparatus may also be used for buffing black portions of a tire sidewall to give those portions a smooth finish. The apparatus includes a cutting device and a sensor mounted on a moveable carriage. The sensor measures the distance between the cutting device and a portion of the tire sidewall adjacent to the portion to be buffed. As the tire rotates while it is being buffed, the carriage moves in response to the sensor's measurement toward or away from the tire sidewall, so that the cutting device removes material at a constant height relative to the adjacent portion of the sidewall.
摘要:
A grinding machine for the grinding or rasping of rubber items having a conveyor belt (1) which feeds the rubber items in under a grinding cylinder (3). Under the conveyor belt (1) in the area under the grinding cylinder (3), at a distance from and freely moveable--within determined limits--there is mounted a support surface (14) which seeks to press the surface (14) in the direction towards the grinding cylinder (3). The support can be, for example, of one or more bellows cylinders (13) which provide central support for the surface (14). The pressure in the bellows cylinder is formed by compressed air from a compressed-air pipe (23) with a substantially constant pressure. Under the conveyor belt a pivotably mounted (7) guide plate (6) is provided, the one side of which is linked to the support surface (14) via a hemispherical surface (12), which, via a strap or an angle piece (9), is secured to the support surface (14).
摘要:
A portable rasping platform for rasping a top surface of a wall panel includes a plurality of adjustable leveling supports, a pair of support rails, and a drum rasp assembly. The drum rasp assembly includes a drum rasp, a motor coupled to the drum rasp and configured to rotate the drum rasp at a suitable speed, and a truss frame supporting the drum rasp and configured to roll along the pair of support rails. The pair of support rails are configured to be positioned on the plurality of adjustable leveling supports arranged in parallel a certain space apart, and the plurality of adjustable leveling supports are configured to support the wall panel. The drum rasp is configured to pass over and treat the top surface of the wall panel as the drum rasp assembly is displaced along the pair of support rails.
摘要:
It has special application for preparing surfaces of two pieces of a composite material (fiber and resin) which have to be glued by means of an adhesive, establishing a perfect mutual contact between them. The preparation of the surface needs to be uniformed and without damaging the piece.It consists of a moving frame (1) which can be displaced along some longitudinal guides (25-26; 27-28) integral with a bench (2) on which the piece (4, 6, 8) to grind is kept immobile. It includes a casing (14) containing a tool-carrier head (15) which rotates inside the casing adopting a floating arrangement for smoothly and uniformly pressing the piece to grind, advancing along the whole of the piece and following the geometry of its surface.The casing (14) incorporates a nozzle (16) for connecting the inside of the casing to a suction hose for the dust and other particles produced. Moreover, said casing (14) can be displaced laterally in order to grind possible lateral surface extensions.