JPS58143956A - Continuous grinding device - Google Patents

Abstract

PURPOSE:To carry out grinding of the outside and the inside of parts in one process, by so constituting that a rocking trough is tilted in a slant surface part. CONSTITUTION:An indentation is prevented from providing and a device for forming a line in an after process becomes unnecessary, as grinding of the outside and the inside of parts can be done in one process and they hardly come into collision in a carrying direction with each other by providing a stepped rocking trough, whose intermediate part is provided with a slant surface part, on a truck movable horizontally in a reciprocating manner and driving the truck so that its retreating speed becomes faster than its advancing speed.

Description

[Detailed description of the invention] The present invention relates to a continuous cleaning device.

In continuous grinding equipment, which performs sand removal, stress peening, etc. by projecting an abrasive shot onto objects to be polished such as cast parts (hereinafter referred to as parts) that are continuously transported, generally the Since a method is adopted in which the parts move by their own weight on an inclined surface that descends in the direction of the object, the posture of the parts does not change significantly during shot projection. was difficult to project, and a sufficient cleaning effect could not be obtained. - This invention solves the above-mentioned conventional drawbacks, and aims to provide a continuous cleaning device in which the posture of the component changes during shot projection and can also clean the inside of the component.

An embodiment of the present invention will be described below with reference to the drawings.

In the figure, ■ is a frame fixed on the foundation, and a rail (V 3) is laid on the horizontal beam 2. Reference numeral 4 denotes a cart mounted on this rail so as to be able to move back and forth.

Reference numeral 5 denotes an electric motor with a speed reducer attached to a base 6 fixed on the foundation, and a crank 7 is attached to the shaft end of the motor.The crank 7 is connected to a slider 9 of a quick return movement mechanism 8 consisting of a rocking sliding pre-rotation mechanism. be. Swing lever 1 that slidably guides this slider
The base end of o is pivotally supported by the base 6, and the other end is connected to the truck 4 via a connecting rod 11. Reference numeral 12 denotes a swinging trough in the form of a stepped gutter, which includes horizontal gutter portions 13a to 13 (
1 and inclined surface parts 14 to 16 connecting these parts.

This swinging L-luff 12 is composed of an outer shell made of a steel plate and lined with a wear-resistant liner, and a large number of holes 17 for dropping shots are bored on the entire surface of the L-luff. It is.

It should be noted that a receiver for collecting shots that have fallen through this hole for reuse and a shot collecting device such as a screw conveyor are installed on the floor below the swinging trough, but these are not shown.

] 8 is a notched annular support frame, which is fixed to the lower surface of the swing trough 12 either directly or via a support 19.

The columns 19 are connected to each other by appropriate reinforcement, but illustration thereof is omitted. Several rollers 22 are fixed to two parallel shafts 21.21, which are rotatably supported by a bearing stand 20 provided on the truck 4, and these rollers are attached to the swinging trough 12. It engages with the fixed support frame 18 and supports the swing trough 12 so as to be swingable around an axis 24 extending in the longitudinal direction of the rail 3. Reference numeral 25 denotes a frame fixed to the truck 4, and 26 denotes an air cylinder for swinging the trough mounted between a placket 27 fixed to the frame and a placket 28 fixed to the swinging trough 12. 29
is a fixed trough fixed to the truck 4, and is provided in a form extending below the front end portion 12a of the swinging trough 12. Reference numeral 30 denotes an impeller unit 1 for projecting shots, which is an appropriate number for the frame 25, and receives shots from a shot supply device (not shown). Reference numeral 31 indicates an oscillator unit for supplying parts. On the conveyor, swinging 1-rough ■2
The swinging trough 12 is located near the rear end 121).
The second end is open. Further, 32 is a conveyor for carrying out the parts after polishing, and is arranged so that the end of the belt faces below the fixed trough 29. 33 is a cover attached to the frame 25.

In order to grind the cylindrical part W using the device configured as described above, the air cylinder 26 connects the swing trough 12 to the axis 2.
The trolley 4 is made to perform rocking motion several times per minute, and an electric motor 5 with a speed reducer is operated to move the trolley 4 slowly forward in the direction of the arrow X and rapidly backward in the direction of the arrow Y. The parts W supplied onto the swinging trough 12 from the oscillator conveyor (3) 314- are initially oriented in an undefined direction, but since the parts supporting surface of the swinging trough I2 has a cylindrical shape, By performing rocking motion around the axis 24 of the swinging trough 12, the central axes of the parts W are aligned so as to coincide with the longitudinal direction of the trough, and the impeller unit rotates at a low speed as the swinging trough 12 swings. Each part is polished by shots from 30. In addition, since the swinging trough 12 and the fixed trough 29 perform a quick return reciprocating motion in the horizontal direction together with the trolley 4,
Each component W is sequentially slid in the longitudinal direction on the swing trough 12 due to inertial force without colliding with each other in the transport direction. As a result of this movement, the parts that have reached the inclined surfaces 14 and 15 have their central axes inclined along the inclined surfaces as shown in FIG. 1, so that their interiors are also polished by the shot. The parts after cleaning are horizontal gutter part 1
From above 3C, it reaches the slope part 16 and slopes, and here the shot l- inside the part falls, and further slides on the horizontal gutter part 13d, passes over the fixed trough 29, and goes onto the bell (4) conveyor 32. It is transported.

The present invention is not limited to the embodiment described in -F. For example, the upper surfaces of the swinging trough 12 and the fixed trough 29 may be formed into a polygonal cylindrical shape instead of being cylindrical. Further, in the above embodiment, since the fixed trough 29 is provided following the swinging trough 12, there is an advantage that the position of the parts transferred onto the belt conveyor 32 in the conveyor width direction is almost constant.
v If the width of the conveyor 32 is wide, use the fixed trough 2.
9 may be omitted and the parts may be transferred directly from the end of the swinging trough 12 onto the belt conveyor 32. Further, the impeller unit 30 may be attached to a support frame erected on a foundation. Furthermore, other mechanisms may be used as the quick return movement mechanism 8, and it is also possible to control the rotational speed of the electric motor 5 with a reduction gear to perform the quick return of the truck 4.

Still, in the above embodiment, since the inclined surface section 16 is provided also in the moving path of the part after being polished, there is an advantage that shot inside the part is reliably discharged, but it is possible to omit this inclined surface section 16. be.

Further, according to the present invention, the cylindrical parts aligned by the swinging trough are further tilted at the inclined surface portion, so that the outside and inside of the parts can be cleaned in one step. It can be done. Furthermore, since the parts of the swinging trough 2 hardly collide with each other in the transport direction, the occurrence of dents is prevented, and a device for alignment in the subsequent process is not required.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal cross-sectional view of a continuous cleaning device showing an embodiment of the present invention, and FIG. 2 is a cross-sectional view taken along the line A--A in FIG. 1. ■. Frame, 3.. Rail, 4. Dolly, 5.. Reduction gear 4. Electric motor, 8. Quick return movement mechanism, 12.. Swinging trough, 14.. Inclined surface section, 15.. Inclined surface section. , 18...
Support frame, 20...Bearing stand, 21.Shaft, 22...Roller, 2
4. Axis line, 26. Air cylinder, 30. Impeller unit. Applicant: Takahisa Co., Ltd. Agent Masao Inui (7)

Claims (1)

[Claims] A dolly that can freely reciprocate in the horizontal direction, and an intermediate inclined surface portion that is disposed with its longitudinal direction facing the moving direction of the dolly and supported by the dolly so as to be swingable about an axis extending in the longitudinal direction. a swinging trough shaped like a stepped gutter, a swinging drive device for swinging the swinging trough, a reciprocating drive device for driving the truck so that its backward speed is greater than its forward speed; A continuous cleaning device comprising an abrasive material projection device that projects an abrasive material onto an object to be polished on a dynamic trough.