JPH04183574A - Cutting device for strip material - Google Patents

Abstract

PURPOSE:To jet a clean water at all times to the cutting part of a strip material, by communicating a pump which feeds a clean water to a water jet nozzle and water injection pipe with the final tank of an overflow water tank. CONSTITUTION:Water is injected by a water injection nozzle 16 to a cutting part simultaneously with a strip material 23 being cut in a regular size by the rotation of a rotating grinding wheel 12, and water is injected by a water jetting pipe 15 onto a strip material receiving plate 10. the strip material 23 is held by a clamping chuck 13 at the right and left both sides of the cutting part, so no cutting burr is caused, with its being cut in a regular size orthogonally by the rotating grinding wheel 12, that which is of good quality and high dimensional accuracy is obtainable. The water jetted to the cutting part washes off the cutting chip of the strip material 23 And one part of cutting oil, the water jetted onto the strip material receiving plate 10 washes off the cutting powder dropped on the strip material receiving plate 10, cutting oil and the grinding wheel powder into a lot of holes 11. Therefore an upper part the strip material receiving plate 10 become clean, and no scratch is caused on the strip material 23 fed after cutting.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an improvement in a strip cutting device for cutting strip materials such as thin pipes and bars using a rotary grindstone.

(Prior art) In a conventional strip cutting device, the material receiver is a plate I as shown in Fig. 2.
At the same time as the strip material 2 sent upward is cut by a rotary grindstone 3, water is sprayed onto the cut portion by a water spray nozzle 4.

(Problem to be Solved by the Invention) By the way, in the above-mentioned strip cutting device, the water to be sprayed onto the cut portion of the strip 2 is pumped 7 to pump the water 6 containing grindstone powder received in the water tank 5 at the bottom of the device. Because the material was sucked up by the grinder, and because grindstone powder gradually accumulated on the material receiver plate 1, the strip material 2 was scratched by the grindstone powder.

Furthermore, it was difficult to collect the powder (precious metal) generated when the strip material 2 was cut.

Furthermore, since the cut end of the strip 2 bends due to its own weight during cutting,
It was cut diagonally and the cut surface was not at right angles, resulting in burrs. Therefore, it was not cut to a regular length during continuous cutting, resulting in poor dimensional accuracy.

Therefore, the present invention makes it possible to always spray clean water to the cutting part of the strip, the material receiver can eliminate the grinding stone powder on the plate, and the strip can be cut at right angles without creating burrs. The object of the present invention is to provide a strip cutting device that allows easy recovery of powder (precious metals) that is sometimes generated.

(Means for Solving the Problems) In order to solve the above problems, the strip cutting device of the present invention cuts strips into regular lengths with a rotary grindstone and sprays water onto the cut portion with a water spray nozzle. In the material cutting device, a large number of holes are drilled in the strip receiving plate, and a water spouting pipe with multiple spouting ports is provided at the side end of the strip receiving plate, and the clamping of the strip cutting part is performed. The cleaning chuck is used as a clamping chuck that holds both the left and right sides, and a washing water receiver with a filter at the lower end outlet is provided below the strip receiving plate, and the overflow is divided into multiple water tanks below the washing water receiver. The present invention is characterized in that a water tank is provided, and a pump for sending clean water to the water jet nozzle and the water jet pipe is connected to the final tank of the overflow tank.

(Function) In the strip cutting device of the present invention configured as described above, when the strip is fed onto the strip receiving plate and stopped at a predetermined position, both left and right sides of the cut portion of the strip are clamped. It is held in a chuck. The strip is cut into a fixed length by the rotation of the rotary grindstone, and at the same time water is sprayed onto the cut portion by a water jet nozzle, and water is sprayed onto the strip receiving plate from a water jet pipe. In this way, the strip is held by the clamp chucks on both sides of the cutting part, so it is cut to a fixed length at right angles by the rotating grindstone, and there is no cutting burr, making it possible to obtain products with high dimensional accuracy and good quality. . The water sprayed onto the cutting section washes off the cutting powder and some of the cutting oil from the strip, and the water sprayed onto the strip receiving plate washes away the cutting powder, cutting oil, and grindstone that have fallen onto the strip receiving plate. Wash off the powder into the many holes. Therefore, the surface of the strip receiving plate is kept clean, and the strips fed after cutting will not be scratched. Dirty water washed through the many holes in the strip receiving plate is received by the washing water receiver, discharged from the outlet at the lower end, and stored in the first of the overflow tanks. A filter is installed at the bottom outlet of the washing water receiver, so when dirty water is discharged, most of the cutting powder from the strip material and grinding stone powder that is mixed in is captured, and the cutting powder is removed from the precious metals. If so, collection will be easier. When the strips are cut one after another and the water used for washing each time is discharged from the lower end outlet of the washing water receiver and stored at the beginning of the overflow tank, fine particles that could not be captured by the filter are removed. will settle to the bottom, and eventually the supernatant will overflow and accumulate in the next tank, where fine powder will also settle. The clean water that overflows and accumulates in the final water tank is sucked up by a pump, sprayed onto the cut portion of the strip by a water injection nozzle, and sprayed onto the strip receiving plate by a water injection pipe.

Therefore, there will be no scratches on the sent strip material.

(Embodiment) An embodiment of the strip cutting device of the present invention will be described with reference to FIG. 1. Reference numeral 10 denotes a strip receiving plate, and this strip receiving plate 10 has a large number of holes 11 drilled at regular intervals. ing. Clamping chucks 13 and 13' for holding the strip are provided on both the left and right sides of the strip cutting portion on the strip receiving plate 10, that is, on the left and right sides of the portion of the rotary grindstone 12 that has the cutter. A stopper 14 for stopping the strip at a predetermined position is provided at a position on the feeding direction line of the strip, and a water spouting pipe 15 having a large number of spouting holes is provided at the front end of the strip receiving plate 1o. A water injection nozzle 16 is provided at the position of the rotating grindstone 12. A wash water receiver 19 is provided on the lower side of the strip receiving plate 1O, and a cylindrical filter 18 is removably attached to a discharge port 17 at the lower end. Below this washing water receiver 19, there are a plurality of water tanks 20a, 20b, 20 in this example, three water tanks 20a, 20b, 20.
An overflow water tank 20 divided into sections c is provided, and an outlet 17 of the washing water receiver 19 is provided above the first water tank 20a.
is located. A pump 21 is provided in the last tank of the overflow tank 2o, and this pump 21 connects to the conduit 22.
It is connected to the jetting pipe 15 and the water jetting nozzle 16 via.

In the strip cutting device of the embodiment configured as described above,
When the strip 23 is fed onto the strip receiving plate 10 and stops when it hits the stopper 14, the left and right sides of the cutting position of the strip 23 are held by clamping chucks 13 and 13'. Then, the strip material 23 is cut into a fixed length by the rotation of the rotary grindstone 12, and at the same time, water is sprayed onto the cut portion by the water spray nozzle 16, and water is sprayed onto the strip material receiving plate IO from the water spray pipe 15. It is squirted. In this way, the strip material 23 is held by the clamping chucks 13 and 13' on both sides of the cutting position, so it can be cut at right angles by the rotary grindstone 12, without cutting burrs, and with high dimensional accuracy and good quality. is obtained. The water sprayed onto the cutting section washes off the cutting powder and some of the cutting oil from the strip 23, and the water sprayed onto the strip receiving plate IO removes the cutting powder and cutting oil that fell onto the strip receiving plate IO. , the powder from the whetstone is washed off into the many holes U. Therefore, the surface of the strip receiving plate 10 is kept clean, and no scratches occur on the strip 23 that is fed after cutting. Dirty water washed into the many holes 11 of the strip receiving plate IO is received by the washing water receiver 19, discharged from the outlet 17 at the lower end, and stored in the first water tank 20a of the overflow water tank 20.

A filter 18 is provided at the outlet 17 at the lower end of the washing water receiver 19.
is provided, so when the dirty water is discharged, most of the cutting powder from the strip material 23 and the powder from the grindstone mixed in is captured, and if the cutting powder is precious metal, it can be easily recovered. Strip material 23
are sequentially cut, and the water used for washing each time is discharged from the outlet 17 at the lower end of the washing water receiver 19 and stored in the first water tank 20a of the overflow water tank 20. The fine powder that could not be captured settles to the bottom, and eventually the supernatant overflows and accumulates in the next water tank 20b, where the fine powder also settles to the bottom.

Then, the clean water that overflowed and accumulated in the first water tank 20c is sucked up by the pump 21, and the water spray nozzle 16
The water is sprayed onto the cut portion of the strip material 23 at the water spouting pipe 15.
It is ejected onto the strip receiving plate 10 at . Therefore, the strip material 23 that is sent will not be scratched.

(Effects of the Invention) As described above, according to the strip cutting device of the present invention, clean water can always be sprayed onto the cut portion of the strip, and water can also be sprayed onto the strip receiving plate to remove cutting powder from the strip. Since the grindstone powder can be washed away, scratches can occur on the strip. In addition, since both the left and right sides of the cut portion of the strip can be held, the strip is cut at right angles without producing burrs, and products with high dimensional accuracy and good quality can be obtained. Furthermore, since the cutting powder and grindstone powder mixed in the washed water can be captured by the filter, and the powder that cannot be captured settles to the bottom of the overflow tank, so it is easy to recover precious metal powder.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing an embodiment of the strip cutting device of the present invention, and FIG. 2 is a perspective view showing a conventional strip cutting device. Applicant Tanaka Kikinzoku Kogyo Co., Ltd. Figure 2

Claims (1)

[Claims] 1) In a strip cutting device that cuts strips into regular lengths using a rotary grindstone and sprays water onto the cut portion with a water jet nozzle, a large number of holes are drilled in the strip receiving plate and the strip receiving plate is A water spouting pipe with multiple spouting ports is installed on the side edge of the board, and the clamping chuck at the strip cutting part is used as a clamping chuck to hold both the left and right sides, and the lower end is placed on the bottom of the strip receiving plate. A washing water receiver equipped with a filter is provided at the discharge port, an overflow tank divided into a plurality of tanks is provided below the washing water receiver, and the final tank of the overflow tank has clean water in the water injection nozzle and the water injection pipe. A strip cutting device characterized by communicating with a pump that sends.