JPS6144759Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a device for collecting chips from the surface of a product processing rack.

[Prior art]

For example, in the conventional beveling process, as shown in FIG. Then, a rail 4 is installed around it via a rail support 5, and a beveling machine 8 is run along the rail 4 to process it.
When the end face of the aluminum spherical shell 1 is beveled, a large amount of processing waste such as chips is generated.

When processing products using a wide range of processing pedestal surfaces as described above, processing waste generated from the products is widely distributed and scattered or accumulated on the processing mount surface, causing a situation that hinders work. This must be recovered using some method.

Conventionally, these chips are collected using a vacuum method such as a broom or a vacuum cleaner on the surface of the stand and collected in one place, and the other is collecting them in several places like wood chips and transporting them by air. However, in the case of the latter method, it is necessary to install ducts, cyclones, collection boxes, etc., resulting in fairly large-scale fixed equipment, which is expensive.

Therefore, as shown in Fig. 1, aluminum chips P are removed from the chip collection box 6 using the suction force of an air ejector using compressed air as shown by arrow A as a method that does not require much equipment cost.
This shows a general planar suction method for collecting.

However, in this case, the flexible hose 7 must be piped so that it can be moved easily, and when some accumulated aluminum chips P are sucked, the chips tend to become entangled and clog the tip of the suction port and inside the flexible hose 7. In addition, the inner surface of the flexible hose 7 is scraped by the edges of the aluminum chips P, which significantly shortens the service life of the flexible hose 7.

This means that in a practical use case, 1 to 2
After about 1 to 2 months of use per hour/day, holes will form and will require replacement, which not only increases the consumption cost of the flexible hose 7, but also causes extremely low work efficiency, causing problems in terms of maintenance costs and efficiency. It was hot.

[Purpose of invention]

The present invention solves the problems in the conventional chip collection method, prevents clogging in the pipe line during chip collection, and improves the collection ability.
The purpose of this invention is to provide a chip recovery device that can reduce running costs.

[Structure of the idea]

In this invention, a chip input hopper is hung down on the surface of the processing table where beveling etc. are performed, a grid for rough chip disassembly is attached to the entrance of the chip input hopper, and a pair of plates are placed below the grid, centered around the input opening. Batsuful formed by attaching it in an inverted eight shape to the
Further, a compressed air blowing pipe is located below the buttful, and the compressed air blowing pipe is provided with a diagonally upward compressed air blowing hole, and the cross section is approximately triangular in shape at the top of the compressed air blowing pipe. Install a scattering plate of
A chip recovery device comprising a chip pneumatic feeding pipe provided below the chip input hopper.

Hereinafter, an embodiment in which the chip collecting device of the present invention is applied will be described with reference to the drawings. Fig. 2 is a schematic diagram of the chip collecting device in the embodiment of the present invention, and is similar to the conventional example shown in Fig. 1. An aluminum spherical shell 1, which is a product to be processed, is fixed to a spherical pedestal 2, which is a processing pedestal, using an aluminum plate support 3, and then beveled by a beveling machine 8 that runs on a rail 4 provided on a rail support 5. It shows a recovery device for aluminum chips P during processing.

The basic difference from the conventional plane suction method shown in FIG. 1 is that in the case of FIG. In contrast, in the present invention, several aluminum chips P accumulated on the spherical mount 2 are inserted into the underside of the aluminum spherical shell 1 to the extent that they interfere with the beveling process. After the bevel processing of the chips is completed and the products are moved without being mixed and collected, the cover plate 10 of the chip input hopper 9 provided approximately at the center of the spherical mount 2 is removed, and after the air ejector 11 starts suction. Collect the accumulated aluminum chips P in the center with a hand 12 or a broom,
A method is adopted in which chips are introduced into a hopper 9.

Here, the compressed air indicated by the arrow A is communicated from the compressed air piping 14 having the main valve 13 to the air ejector 11 via the valve 15, and the aluminum chips P sucked by the air ejector 11 are transferred from the chip pneumatic feeding piping 16 as shown in the broken line. The chips are collected into the chip collection box 6 from the canvas hood 17 which can be swung in the direction of arrow S as shown in FIG.

The same parts as in Fig. 2 are indicated by the same part numbers. Fig. 3 shows a case where multiple input ports are provided.
The chip input hopper 9 provided in the middle part is basically the same as the chip input hopper 9 provided at the end of the pneumatic conveyance pipe. The only difference is that the air ejector 11 side is sloped as indicated by the arrow T, and the secondary air adjustment damper 18 is not provided.

Therefore, the difference between the present invention and the conventional device is this chip input hopper 9;
The structure will be explained based on the embodiment shown in FIGS. 7 to 7. FIG. 4 is an enlarged front sectional view of the chip input hopper of FIG. 6 is a plan view of FIG. 5, and FIG. 7 is an enlarged sectional view of a main part of a compressed air blowing pipe provided inside for chip diffusion.

The structure of this chip input hopper 9 can be roughly divided into a flange-equipped hopper 19 shown in FIGS. 4, 5, and 6, a grid 20 for rough chip decomposition, and a chip floating and dispersing zone formed by turbulent air. , and the aluminum chip P is formed by attaching a pair of plates in an inverted eight shape around the input opening, which has both the function of preventing chips from blowing up into the input opening 21 and the function of guiding the input chips to the center. Numerous compressed air blow holes 23 diagonally upward for loosening.
The compressed air blowing pipe 24 and the chip pneumatic feeding pipe 16 shown in FIG. 7 are shown in FIG. It is composed of a secondary air adjustment damper 18 for secondary air, and a cover plate 10 having a drop-in handle 25 for use at times other than when inserting chips.

When loading the aluminum chips P into the chip loading hopper 9, the opening degrees of the valve 15 and the secondary adjustment damper 18, which have been adjusted in advance, are set at the base provided on the spherical mount 2, regardless of the subsequent loading operation. Compressed air A is properly supplied to the air ejector 11 and the compressed air blowing pipe 24 by simply opening the valve 13.

Next, remove the upper cover plate 10 and remove the spherical pedestal 2.
The aluminum chips P scattered and deposited over a wide area are collected into the input port 21 using a rake 12, a broom, etc., and are introduced.

In this case, the aluminum chips P have become tangled due to stepping on them by workers and other factors, and in order to prevent clogging caused by introducing a large amount of aluminum chips P at once, the aluminum chips P are coarsely disassembled in the upper grid 20. However, in this embodiment, the aluminum chips P that have fallen along the baffle 22 are further finely suspended and dispersed by jets of compressed air A jetted out from a large number of compressed air blowing holes 23, and guided to the chip pneumatic feeding pipe 16. It was confirmed that no clogging occurred even when three people inserted aluminum chips P at the same time.

To express the state in which it was blown into the chip air supply pipe 16 in easy-to-understand and common terms, it was "fluffy" and "sewy" and was sucked into the chip pneumatic feeding pipe 16 without any sense of stagnation.

In this embodiment, the compressed air blowing pipe 23 provided in the compressed air blowing pipe 24 has an upward angle of 30 degrees and a hole diameter of 2.
mm, with a pitch of 55 mm, and one row is provided on each side.These values not only ensure jet velocity and reduce air consumption, but also create a turbulent flow that looks like a comb and prevent the area from falling. It has been empirically proven that the aluminum chips P have an appropriate value so that the tangles are completely dispersed by the turbulent flow, and the aluminum chips P are sucked into the chip pneumatic feeding pipe 16 in an orderly manner in a floating state.

Thereafter, the aluminum chips P are led through the chip pneumatic feeding pipe 16 to a chip collection box 6, such as a semi-automatic bottom plate opening/closing type, which has a cover with a filter on the top and is exhausted.

The aluminum chips P collected in the chip collection box 6 are transported by a transport truck. The connection portion is a swing type bent pipe sealed with a canvas hood 17.

It should be noted that the function is to suck the aluminum chips P from the lower part of the compressed air blowing pipe 24 for chip diffusion and the chip input hopper 9 shown in FIGS. 4 to 7 above, and to collect the aluminum chips P into the chip collection box 6. Regarding the air ejector 11 etc.
The present invention is not limited to the above-mentioned embodiments, and any structure may be used. Furthermore, the present invention can be applied to the recovery of chips and other substances other than the aluminum chips P as described above.

[Effect of idea]

(1) A grid for coarsely disassembling chips is installed at the entrance of the chip input hopper, so it is possible to disassemble chips and tangles in advance.
This can be prevented.

(2) A baffle is provided below the coarse cracking grid, which prevents chips from blowing up into the input port.

(3) Since a compressed air blowing pipe with a compressed air blowing hole is located on the underside of the buttful, the jet of compressed air that blows out will disperse the air even more finely, further preventing the occurrence of clogging. .

(4) In addition, by installing an arch breaker at the top of the compressed air blowing pipe, its function is further demonstrated by the synergistic effect with the compressed air blowing out, and as a synergistic effect with other configurations, it is even more effective in preventing clogging. can be made into a target.

(5) By compactly arranging the various structures that bring about the above effects in the chip input hopper, it is possible to reduce not only the manufacturing cost of the device but also the running cost, and the various effects described above can also be achieved. Can be done.

[Brief explanation of drawings]

Fig. 1 is a schematic diagram showing a conventional chip collection method using a plane suction method, Fig. 2 is a schematic diagram showing a chip collection device according to an embodiment of the present invention, and Fig. 3 is a schematic diagram showing a chip collection device of the present invention in which multiple chip collection devices are used. A schematic view showing the case where the chip input hopper is applied to a spherical frame having a mouth, FIG. 4 is an enlarged front sectional view of the chip input hopper of FIG. 2, FIG. 5 is a side sectional view of FIG. 4, and FIG. Floor plan, 7th
The figure is an enlarged sectional view of a main part of a compressed air blowing pipe provided inside for chip diffusion. 1... Aluminum spherical shell, 2... Spherical mount, 6... Chip collection box, 8... Bevel processing machine, 9... Chip input hopper, 10... Lid plate, 11... Ejector, 14... Compression Air piping, 16... Chip air feed pipe, 21... Inlet, 23... Compressed air blowing hole, 24... Compressed air blowing pipe, A... Compressed air,
a...Secondary air, P...Aluminum chip.

Claims (1)

[Scope of utility model registration request] By hanging a chip input hopper on the surface of the processing platform, attaching a grid for rough chip disassembly to the entrance of the chip input hopper, and attaching a pair of plates below the grid in an inverted eight shape centered on the hopper entrance. A compressed air blowing pipe is placed under the formed buttful, and a compressed air blowing hole is bored diagonally upward in the compressed air blowing pipe, and a cross section is formed in the upper part of the compressed air blowing pipe. A chip recovery device comprising a scattering plate having a substantially triangular shape and a chip pneumatic feeding pipe provided below the chip input hopper.