JPS639947B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION TECHNICAL FIELD The present invention relates to a cleaning device, and more particularly to a cleaning device that is improved to completely discharge abrasive material from a cleaning chamber.

Prior Art A workpiece loading/unloading station and a grinding station are installed in a grinding chamber, and workpieces supported by workpiece gripping devices disposed at appropriate locations on a rotating body are sequentially rotated between the two stations. , Japanese Patent Application Laid-Open No. 56-45371 discloses a technology in which the processed product is loaded and unloaded on one hand while the grinding process is performed on the other. In the case of this polishing device, the loading and unloading station is located at the top Because of this, the equipment for loading and unloading becomes high-rise, which has disadvantages such as high equipment costs and poor workability for loading and unloading. Therefore, if the loading/unloading station is placed in the horizontal position, the grinding station will be moved to the top position, and as a result, the abrasive material projected into the grinding station will be deposited without being discharged and processed. This method has the disadvantage that the product gets buried in the particles separated from the abrasive material, reducing the cleaning efficiency.

OBJECT OF THE INVENTION The present invention seeks to overcome the above-mentioned drawbacks by providing a grinding device in which the abrasive material can be discharged from all receiving chambers and in which the loading and unloading ports can be selected at optimal positions. .

Structure of the Invention In order to achieve the above object, the invention has a product loading/unloading port at the front, an abrasive material discharge port at the bottom, and an abrasive material projecting device at at least one location on the top and back. A cleaning chamber formed in a substantially hermetically sealed manner, and a rotating body supported on a pair of horizontal shafts passing through both sides of the cleaning chamber, the rotating bodies being fixed to the horizontal shafts at a distance from each other. The cylindrical space between the side plates is divided approximately radially to form a suitable number of receiving chambers, and each of the receiving chambers is configured to rotate the workpiece independently. each of said partition walls is formed by first and second partition walls arranged side by side with a predetermined trough-like space between them, and the inner ends of all said trough-like spaces The structure was such that they communicated in a labyrinth-like manner.

Embodiment In the figure, reference numeral 1 denotes a grinding chamber supported by a frame 43, and the cleaning chamber 1 has a product loading/unloading port 38 at the front, an abrasive material discharge port 40 at the bottom, and a The back part has an appropriate number of abrasive material projection devices 42 and is formed in a substantially sealed shape. A pair of horizontal shafts 3 pass through both sides of the cleaning chamber 1 and support a rotating body 2 thereon. The rotating body 2 includes two circular side plates 10 that are spaced apart from each other and fixed to the horizontal shaft, and four reinforcing rods 11 that connect the side plates 10, 10.
and a partition wall that partitions the columnar space formed between the side plates 10, 10 in a substantially radial direction to form four receiving chambers 5. The partition wall consists of a first partition wall 12 and a second partition wall 13 that are arranged in parallel to each other so as to form a predetermined gutter-like space 14, and the inner ends of all the gutter-like spaces 14 have an opening 15 in the center.
are formed and communicated in a labyrinth-like manner, and each receiving chamber 5 also has an opening 16 inside.

Reference numeral 4 denotes an electric motor having a built-in reduction gear, for example, for rotating the rotating body 2.

In each receiving chamber 5, a holding device 21 is rotatably supported on side plates 10, 10 via bearings 25, 25. The holding device 21 includes a pair of receiving members 24 and a workpiece receiver 22 fixed to the receiving members 24.
and a holding device 23 for gripping the workpiece 6 placed on the workpiece receiver 22. The presser device 23 includes a pivot lever 29 having a presser arm 30 at its tip, which is pivotally supported by a receiving member 24, and a spring 31 (not shown) for biasing the pivot lever 29 in the direction of gripping the workpiece 6. It is constituted by a lever arm 32 for receiving pressure exerted in the direction of arrow 33 by an actuating device. Reference numeral 27 denotes an electric motor attached to the side plate 10 in order to rotate each holding device 21 independently.For example, a driving force is transmitted to the rotating shaft 26 by a chain 28, so that the holding device 21 is rotated separately from the rotating body 2. It is configured to be rotated by a driving source.

A receiving chamber 5 facing the loading/unloading port 38
The loading/unloading station 7 includes a door 37.
The workpiece 6 is configured to be able to be opened and closed by a carry-in/out device 39 so that the workpiece 6 is supplied to the holding device 21 in the step shown by an arrow 44 at the time of being carried in.

A turning station 9 includes a receiving chamber 5 facing the discharge port 40, and a vibrating conveyor 41 is installed below the discharge port 40 for discharging the abrasive material and separated particles.

It should be noted that each chamber 5 diagonally opposite to the loading/unloading station 7 and the turning station 9 constitutes a polishing station 8, 8a.

17 and 18 are shielding means for preventing the abrasive material from scattering to the loading/unloading station 7 and the loading/unloading port 38.

The embodiment of the present invention has the above-mentioned configuration, and its operation will be explained next. First, the processed product 6 is transferred from the loading/unloading port 38 of the loading/unloading station 7 to the first receiving chamber 5 using the loading/unloading device 39. The workpiece 6 is held by the workpiece receiver 22 and the presser arm 30 with the lever arm 32 opened by operating an actuating device (not shown) in the direction of the arrow 33. Next, the rotary body 2 is rotated 90 degrees to send the workpiece 6 to the first polishing station 8, and at the same time, the electric motor 27 is driven to rotate the workpiece 6 while the abrasive material is projected from the abrasive projection device 42. Polishing treatment depending on the material. At the same time, the second receiving chamber 5 can be loaded with a workpiece. If the rotating body 2 is rotated a further 90 degrees, the workpiece 6 reaches the second grinding station 8a, where it is also subjected to the grinding process. At the same time, the third receiving chamber 5 can be loaded with a workpiece. Further, the rotating body 2 is rotated 90 degrees, and the workpiece 6 that has been subjected to the grinding process is rotated at the turning station 9, so that the abrasive material is discharged from the hollow part of the workpiece 6. At the same time, the fourth receiving chamber 5 can be loaded with a workpiece. When the rotating body 2 is rotated by 90 degrees, the workpiece 6 reaches the loading/unloading station 7, the gripping force of the presser device 23 is released by the actuating device, and the workpiece 6 is transported out by the loading/unloading device 39.

As mentioned above, during one rotation of the rotating body 2, the steps of loading, polishing, turning, and unloading are performed at the four stations, but both the first polishing station 8 and the second polishing station 8a The polished abrasive material projected from the abrasive material projection device 42 to polish the workpiece 6 is delivered to each receiving chamber 5.
The abrasive material is discharged from the trough-like space 14 in the receiving chamber 5 downstream through the trough-like space 14 of the downstream receiving chamber 5 and onto the vibrating conveyor 41 from the discharge port 40. No particles left behind.

Effects of the Invention As described above, the present invention has the structure described in the claims, so that the particles peeled off from the abrasive material and the workpiece during the abrasive treatment can directly pass through the gutter-like space from the abrasive station. to be discharged by flowing down;
Since the abrasive material is completely discharged from the hollow part of the workpiece at the turning station, the abrasive material does not spill out from the receiving chamber or the workpiece when the workpiece is loaded or unloaded at the loading/unloading station.
The loading/unloading station can also be set in a horizontal position, and the equipment for loading/unloading can be lowered to a lower position, resulting in significant effects such as reduced equipment costs and easier loading/unloading work.

[Brief explanation of the drawing]

The figures show one embodiment of the present invention, with FIG. 1 being a sectional side view and FIG. 2 being a sectional front view. 1...Grinding room, 2...Rotating body, 3...Horizontal axis,
5... Receiving chamber, 7... Loading/unloading station, 8, 8a... Grinding station, 9... Turning station, 10... Side plate, 11... Rod,
12...first partition, 13...second partition, 14...
Gutter-like space, 15, 16...opening, 21...holding device, 40...discharge port, 42...abrasive material projection device.

Claims (1)

[Claims] 1 A cleaning chamber formed in a nearly sealed shape, with a product loading/unloading port at the front, an abrasive material discharge port at the bottom, and an abrasive material projection device at at least one location on the top and back. , a rotary body supported on a pair of horizontal shafts passing through both sides of the cleaning chamber, the rotary body having two circular side plates spaced apart from each other and fixed to the horizontal shaft; partition walls that define a cylindrical space between the plates in a substantially radial direction to form a suitable number of receiving chambers, each receiving chamber having a holding device for independently rotatably supporting a workpiece; Each of the partition walls is formed by first and second partition walls arranged in parallel with each other with a predetermined gutter-like space, and the inner ends of all the gutter-like spaces are communicated in a labyrinth shape. A grinding device featuring: