JPH0226612Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Field of Application> The present invention relates to an improvement of an apparatus for performing barrel polishing processing and blasting processing of projectile material such as blasting.

<Conventional technology> Barrel polishing and injection processing such as blasting are
It has been widely used as a type of polishing process.

These processing devices have been developed separately and are used as separate devices in reality.

In addition, in Utility Model Publication No. 60-26919, it is proposed to perform good injection machining by placing an injection device in the vibrating tank, but this is also a dedicated device for injection machining, and it is possible to perform barrel machining at the same time. It is impossible to do.

<Problem that the invention seeks to solve> However, both processing devices are often used consecutively, and in this case, it takes time and effort to transfer the workpiece from one device to the other, and The machining time is relatively long, and it is desired to shorten these machining times.

In addition, for injection processing such as blasting, an apron conveyor that rotates at a low speed is arranged in the cleaning room.
This conveyor inverts and stirs the product while spraying the projectile material. However, in the case of small products of about 2 to 3 cm, there are problems such as the products getting caught between the apron conveyor and the wall of the cleaning room. Therefore,
It is necessary to put a small product inside a mesh cage and spray the projectile material.

Therefore, the present inventor attempted to perform barrel machining and jetting machining at the same time, but in this case, it was necessary to put the barrel media into the tank together with the workpiece, so mere vibration alone would not be enough. The media gets in the way, making it difficult to properly apply the shot material to the workpiece.

<Means for Solving the Problems> Therefore, the present invention comprises a barrel polishing means and a jetting means such as blasting, and the jetting port of the jetting means is arranged at an appropriate position in the barrel tank of the barrel polishing means. By providing a barrel-cum-injection device,
Solve the above problems.

In this device, the terminal end of a barrel tank having a substantially U-shaped cross section is disposed above the starting end of the barrel tank, and this terminal end is connected to the starting end via a dam part. The upper end of this dam part is arranged at a position higher than the bottom of the terminal end of the barrel tank, and the injection port of the injection processing means is arranged above the dam part of this barrel tank. A first screen is provided on the bottom surface of the barrel tank to separate the workpiece and barrel media from the shot material and burrs, and below that, a second screen is provided to separate the shot material and burrs that have passed through the first screen. It is arranged. Further, a sorting screen is disposed at a position different from the position where the first screen is stretched, which separates the workpiece from the barrel media and leaves only the barrel media that has passed through the barrel tank.

<Function> In the present invention, since the injection port of the injection processing means is disposed in the barrel tank of the barrel polishing means, barrel polishing and injection processing can be performed at the same time.

At this time, the injection port of the injection processing means is arranged above the dam part of the barrel tank, the upper end of this dam part is higher than the bottom of the end of the barrel tank, and the end of the barrel tank is above the start end. , the head at the dam section will be large. When going over this dam part, the workpiece is most exposed from inside the media, and by spraying the blasting material onto this exposed workpiece, it can be kept in good condition even during barrel machining. It is possible to perform injection processing on a workpiece.

<Example> An example of the present invention will be described below based on the drawings.

FIG. 1 is a schematic diagram of one embodiment, and FIG. 2 is a perspective view of the same. This barrel/injection device consists of a barrel means and an injection processing means. First, the barrel means will be explained. The barrel means includes a barrel tank 2 mounted on a pedestal 1 and supported by a support spring 3, and this barrel tank 2 is of a vibrating rotation type that is vibrated by a known vibration means such as a vibration motor 4. The barrel tank 2 has a spiral shape and is open at the top. The vibration means is a vibration motor 4.
Upper and lower eccentric rotating bodies 4 with different phases around the vertical axis
a and 4b generate vibrations in the horizontal plane, and the barrel tank 2
The products and media inside vibrate and rotate at the same time. The product and the media are circulated in the barrel tank 2 while being spirally rotated and stirred, and the barrel tank 2 is provided with a dam part 5. The dam section 5 connects the starting end and the terminal end of the barrel tank 2, and the products to be processed and the media for barrel processing circulate from the starting end to the terminal end, and return to the starting end after getting over the dam section. The terminal end of this barrel tank 2 is located above the starting end, and the upper end of the dam portion 5 is located at a higher level than the bottom surface of the terminal end.

A discharge port 6 is opened in the lower part of the starting end side of the dam portion 5, and a first screen 7 is disposed in the discharge port 6. A hopper 8 is attached to the discharge port 6, and a second screen 9 is installed in the middle of the hopper 8.
are arranged. The outlet of the hopper 8 is connected to a blast material circulation hose 11 of the jet processing means.

This injection processing means will be explained below.

One end of the shot material circulation hose 11 is connected to the outlet of the hopper 8, and the other end is connected to the injection nozzle 12. A compressed air hose 13 is connected to the injection nozzle 12, and the blasting material is injected from the nozzle together with the compressed air. This compressed air is supplied by a known means such as a compressor, but is not shown. Incidentally, instead of jetting with compressed air, the jetting material may be jetted by other means such as an impeller unit.

In addition, the dust cover 1 is installed to prevent dust, small burrs, and damaged shots from scattering during the injection process.
4 and a dust collector (not shown) are preferably provided. Further, an automatic steam injection device 16 or a humidifying water spray device 17 may be connected to the shot material circulation hose 11.

Next, how to use the barrel/injection device will be explained.

(A) For both barrel and injection processing (a) Pour the product, media, working fluid, compound, etc. into barrel tank 2 and perform barrel polishing.

(b) The products, etc. circulate in the barrel tank 2 while rotating in a spiral while being subjected to vibrations.

(c) Products, etc. that have come to dam section 5 must overcome this and pass through the first
It falls on screen 7.

(d) When getting over this dam part 5, the projecting material is sprayed from the nozzle 12 arranged above the dam part. This projectile material includes shot, grit,
Use sand, abrasive grains, etc.

(e) In the first screen 7, product burrs,
The shot material and working fluid pass through and head towards the second screen 9. Products and media are repeatedly circulated within the barrel tank.

(f) The shot material and working fluid pass through the second screen 9 and head toward the shot material circulation hose 11, and burrs are filtered out at the second screen 9. Incidentally, since the second screen 9 is arranged in the hopper 8 and fixed to the barrel tank 2, it vibrates together with the vibration of the barrel tank 2, and can perform effective filtration.

(g) The shot material and working fluid that have entered the shot material circulation hose 11 are sent to the nozzle side and are sprayed from the nozzle together with compressed air.

(B) For barrel polishing (a) Put the product, media, working fluid, compound, etc. into barrel tank 2 and perform barrel polishing.

(b) The injection processing means is not operated and the blast material circulation hose 11 is not connected to the hopper 8, and the machine is used as a normal barrel polishing machine.

(C) For injection processing (a) Put the product into barrel tank 2 and operate it.

(b) The product in the barrel tank 2 circulates within the tank while being subjected to vibrations, and receives the spray material from the nozzle 12 at the dam part 5. The shot material is circulated via the hopper 8, shot material circulation hose 11, and the like.

The barrel/injection device of the present invention can be used in three ways (A), (B), and (C). Note that the first screen 7 and the second screen 9 may be changed depending on the method of use and the size of the product. When processing small products with a dual-purpose mold, it is recommended to use the screen shown below.

FIG. 3 shows a perspective view of the first screen. This screen is provided with a large number of slits 15 at intervals of about 1 cm, and the barrel tank 2
It is arranged under the dam part 5 of. The size of this slit 15 is changed depending on the size of the product. The slit 15 is used to ensure that the product is transferred smoothly without clogging the slit, but it is also possible to use a regular mesh screen instead. Further, the second screen employs a wire mesh with smaller mesh than the first screen.

Reference numeral 21 in FIG. 2 is a sorting screen, which is a known screen that is not used during operation but is used when taking out products. When taking out products, this sorting screen 21 is arranged in the dam part 5 to take out only the products.

In addition, in the above embodiment, the injection processing device was a pneumatic type that injects the blast material using compressed air.
It is also possible to change to a centrifugal type, which uses centrifugal force to project images using high-speed rotating blades.
However, injection using a nozzle has the advantage that the injection position can be changed more easily.

<Effects of the invention> As described above, the present invention provides a barrel/injection device that can be used in three ways: as a dual-use type for barrel and injection processing, or for processing only barrels, and processing only injection. With a single machine, the user can select a processing method according to his or her needs. In particular, since the injection port of the injection processing means is disposed in the barrel tank of the barrel polishing means, barrel polishing and injection processing can be performed at the same time. Since the product is constantly stirred in the barrel tank, it is possible to achieve good spray processing. Moreover,
The products are not stirred by a belt or the like, but are stirred and transferred by the vibrating rotation of the barrel tank, so even small products will never get caught between the belt and the interior wall of the room. As a result, it is possible to eliminate the hassle of having to place small products in a basket and perform injection processing. Moreover, the barrel polishing means is a vibrating rotating barrel, and the injection port of the injection processing means is arranged above the dam part of the barrel tank, so that when the product crosses the dam part, the blasting material is injected. This allows for the best agitation of the product during barrel processing, allowing the product to emerge from the media best, and allowing spray processing to be carried out at the optimal position where the blasting material hits evenly.

[Brief explanation of the drawing]

FIG. 1 is a schematic view of one embodiment, FIG. 2 is a partially cutaway perspective view of the same, and FIG. 3 is a perspective view of the first screen. 1... Frame, 2... Barrel tank, 3... Support spring, 4... Vibration motor, 5... Dam part, 7
...First screen, 8...Hopper, 9...Second screen, 11...Projection material circulation hose, 12
... Nozzle, 13 ... Compressed air hose.

Claims (1)

[Scope of utility model registration request] The terminal end of the barrel tank having a substantially U-shaped cross section is arranged above the starting end of the barrel tank, and this terminal end is connected to the starting end via a dam part, and the upper end of this dam part is higher than the bottom part of the terminal end of the barrel tank. The injection port of the injection processing means is arranged above the dam part of the barrel tank, and the first screen separates the workpiece and barrel media from the blasting material and burrs at the bottom surface of the barrel tank. A second screen is provided below which separates the projection material that has passed through the first screen from the burrs.
A screening screen is disposed at a position different from the tensioning position of the first screen, and a sorting screen is provided that separates the workpiece and the barrel media and leaves only the barrel media that has passed through the barrel tank. Barrel and injection device.