JPS63185575A - High pressure fluid handling device - Google Patents

Abstract

PURPOSE:To uniformly treat the surface of a workpiece by installing a header, forming a bias angle with respect to the direction of width of the workpiece, and by installing the header in reciprocation reversal around the shaft and jetting the high pressure fluid widely uniformly onto the surface of the workpiece. CONSTITUTION:High pressure fluid is supplied into a header 2, and the high pressure fluid is jetted from a plurality of nozzles of the header, forming a bias angle with respect to the direction of width of a workpiece 12. At the same time, a driving device M is started to reverse the header 2 in reciprocation around the shaft, and the workpiece having a large width is sent onto the underside where the high pressure fluid is jetted, following the transport passage for the workpiece 12. In this case, the high pressure fluid of the workpiece 12 is jetted in zigzag form onto the work piece 12 by the synthetic action of the feeding speed of the workpiece 12 and the reciprocating reversal around the shaft of the header 2, and the surface of the workpiece 12 having a large width can be uniformly working-processed.

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention is a high-pressure fluid treatment device that sprays high-pressure fluid onto molded products such as plastics and ceramics, or inorganic fiber woven fabrics, etc. to deburr and clean them. Alternatively, the present invention relates to a high-pressure fluid treatment device suitable for raising the surface of an inorganic fiber woven fabric.

[Conventional technology]

High-pressure fluid equipment is used for cutting and drilling non-metallic materials such as stone and concrete (Special Publication No. 57-22692
(see publication).

The high-pressure fluid machining device has (1) a small cutting allowance; (2)
It has become widely used in recent years due to its advantages such as (3) no generation of dust, (4) no generation of heat during cutting or cutting.

However, the above-mentioned known high-pressure fluid processing equipment is mainly used for cutting and drilling non-metallic materials such as stone and concrete. It is jetted from our nozzle and converted into high-speed fluid energy, and the high-speed fluid energy can be used to cut non-metallic materials.

Since the method involves perforating holes, it is not necessarily sufficient to uniformly process the surface of a so-called wide object having a large surface area.

[Problem that the invention seeks to solve]

The present invention provides a high-pressure fluid treatment device that can uniformly process the surface of a wide object having a large surface area.

[Means for solving problems]

In the present invention, a header is installed across the transfer path of the workpiece and at a bias angle (θ) with respect to the width direction of the workpiece, and the header is driven to reciprocate around an axis. In addition to being connected to the device, a plurality of nozzles are formed at intervals (Po) in the part facing the object to be processed. This is a high-pressure fluid treatment device configured to invert the nozzle and simultaneously jet high-pressure fluid from a plurality of nozzles to uniformly jet the high-pressure fluid onto the object to be treated.

[For production]

The present invention is constructed as described above, and a flexible hose is connected to the header, and high pressure fluid is supplied to the header through the hose.

The header has a bias angle (θ
) and is designed to be reciprocated around the axis of the header. The reciprocating reversal of the header is a reciprocating reversal movement around the axis within an angle of 15 to 40 degrees, and the driving means is not particularly limited, but for example, levers are attached to both ends of the header, and an eccentric cam is brought into contact with one of the levers. By rotating the eccentric cam, the header can be reciprocated around the axis.

In addition, the music header has a space (
A plurality of nozzles are formed through the header P), and as the header is reciprocated, the tips of the plurality of nozzles are reciprocated at the same angle.

Furthermore, the number of the headers is not limited to one, and two or more headers may be attached.

In this case, the bias angle (θ) of the header is set so that it is sequentially symmetrical to both sides of the line segment in the width direction.
It is desirable that a plurality of headers be installed in a zigzag pattern on the transfer path of the processed material.0 To use the present invention, high pressure fluid is supplied to the headers,
While injecting high-pressure fluid from multiple nozzles, the drive device is turned on to reciprocate and reverse the header around the axis, and a wide workpiece is placed below where the high-pressure fluid is jetted, following the transport path of the workpiece. send in.

In this case, the high-pressure fluid is injected onto the workpiece in a zigzag pattern due to the combined action of the feeding speed (line speed) of the workpiece and the reciprocating rotation around the axis of the header.

FIG. 5 shows an example of the jet trajectory of high-pressure fluid when two headers are installed with the line segment <1> as the axis of symmetry and at a bias angle of 30°. Furthermore, the fifth
In the figure, symbol (H) is a header, and (Po) is an interval between a plurality of nozzles formed in the header.

According to research by the inventors, the jet trajectory of high-pressure fluid follows the following formula.

V Niline speed (m/min) R: Distance between the header axis and the object to be processed α: 1/2 of the maximum reciprocating reversal angle of the header θ: Bias angle of the header Therefore, the trajectory of the high-pressure fluid relative to the object to be processed is When the header rotates in the running direction of the workpiece, it becomes a long straight line, and when the header rotates in the opposite direction to the running direction of the workpiece, it becomes a short straight line, and a group consisting of a plurality of zigzag-shaped broken lines made up of the two straight lines. obtained as the trajectory of

In this case, by arranging the plurality of nozzles formed in the two headers in a straight line or in a zigzag pattern, and shifting the positions of both headers from each other, a fifth nozzle can be formed.
As shown in the figure, the injection trajectories of the two high-pressure fluids overlap, allowing uniform injection over a wide surface of the workpiece.

In this case, by appropriately changing the bias angle of the header and the nozzle spacing of the header, it is possible to increase or decrease the overlap in the trajectories of high-pressure fluid injection depending on the purpose.

The injection pressure of the high-pressure fluid in the present invention is set at 50 to 50 lo, taking into account the shape, material, purpose, line speed, etc.
It can be appropriately selected within the range of oOKg/cm2, and can therefore be applied to various uses such as deburring and cleaning plastic molded products and surface treatment of inorganic fiber woven fabrics.

Furthermore, since the drive device of the present invention only needs to reciprocate and reverse the header, the power cost is low, and therefore the processing cost can be reduced.

[Example of fruit collection]

FIG. 1 and FIG. 2 show one embodiment of the present invention, and the present invention will now be specifically explained based on these drawings. The present invention consists of a frame 1 and a header 2. The pedestal 1 is configured to carry the object to be processed on its surface.

Two headers 2 are installed in the width direction of the object to be processed, with the line segment (j) as the axis of symmetry, and each header 2 is attached at a bias angle (θ).

The header 2 is attached via bearings 4 on support stands 3 at both ends of the pedestal 1, and levers 5a and 5b are attached to both ends of the two support stands 3, respectively.

As shown in FIG. 3, the lever 5a has horizontal bars 6a and 6b formed on both sides of the header 2, and the lower part of one of the bars 6a contacts the lower surface of the bar 6a to slide and rotate. An eccentric cam 7 is attached thereto, and the other bar 6b is attached to the support base 3 via a compressed spring 8a. The contracted spring 8a causes one bar 6a to actuate the other bar 6b following the vertical movement caused by the rotation of the eccentric cam 7.
Therefore, the reciprocating movement of the header 2 is made smooth.

The other lever 5b has a horizontal bar 9 formed on one side as shown in FIG. It assists in reciprocating reversal.

Incidentally, three flexible hoses 10 are attached to the upper part of the header 2 at equal intervals, and a plurality of nozzles 11 are attached to the lower side at intervals (Po) (7 gm or more). ing. The plurality of nozzles 11 may be arranged in a straight line or in a zigzag pattern. Note that in FIGS. 1 and 2, reference numeral 12 is a workpiece, and (M) is a motor.

The invention is used as follows. That is, high pressure fluid is supplied from the flexible hose 10 to the header 2 to drive the motor (M), and at the same time, the workpiece 12 on the pedestal 1 is moved in the direction of the arrow. As shown in , the header 2 is reciprocated around the axis of the header 2 at a maximum angle of 2α.

On the other hand, the workpiece 12 moves at a speed (V) in the direction of the arrow in FIG.
As a result, as shown in FIG.
The trajectory of the high-pressure fluid on 2 is injected in a zigzag pattern.

Although two headers are installed in the illustrated example, the present invention is not limited to this; it is possible to install 3WA or more as needed, and the bias angle can be arbitrarily selected, and the maximum reciprocation of header 2 The reversal angle, 9 reversal speed, etc. can also be arbitrarily adopted.

Therefore, the present invention can increase or decrease the number of headers depending on the shape, material or purpose of the workpiece 12 or its line speed, etc.
The bias angle, the reciprocating reversal angle or reversing speed of the header, etc. can be arbitrarily changed.

〔Effect of the invention〕

As described above, the present invention provides a simple method for treating a wide workpiece with high pressure fluid by installing a header with a bias angle in the width direction of the workpiece and reciprocating the header around its axis. High-pressure fluid can be injected onto the surface of the workpiece, and the header's bias angle (9) and the maximum reciprocating reversal angle (9) of the header (9) and the reversal speed (9) can be changed as desired, making it possible to inject high-pressure fluid widely and uniformly. Therefore, it can be applied to a wide range of applications such as deburring and cleaning plastics and surface treatment of inorganic fiber woven fabrics.

[Brief explanation of the drawing]

FIG. 1 is a front view of an embodiment of the present invention, FIG. 2 is a plan view,
FIG. 3 is an explanatory diagram of the reversal of the header, FIG. 4 is an explanatory diagram showing the attachment state of the other lever, and FIG. 5 is an explanatory diagram of an example of the locus of high-pressure fluid. 1: Frame, 2: Header, 3: Support stand, 4: Bearing, 5a
, sb: lever, 6a, 6b, 9: L/bar bar, 7: eccentric cam, 8a, 8b spring, 1
0: Flexible hose, 11: Nozzle, 12:
Object to be processed. Fig. 1 3 (!Shoguchi) Fig. 3 5bC lever °-)

Claims (1)

[Claims] A header is installed across the transfer path of the workpiece and at a bias angle (θ) with respect to the width direction of the workpiece, and the header is connected to a drive device so as to be reciprocated around an axis. A high-pressure fluid processing apparatus characterized in that a plurality of nozzles are formed at intervals (Po) in a portion facing an object to be processed.