KR102212033B1 - Upper polyethylene cap cutting device molded and glued to stainless steel pipe French - Google Patents

Abstract

The present invention relates to an apparatus for a cutting lower part of a polyethylene cap bonded to a flange of a stainless steel pipe, capable of inserting a polyethylene pipe into a stainless steel pipe used for supplying hydrofluoric gas, and cutting polyethylene, which is molded and bonded to be projected to the outside of a flange of the stainless steel pipe, by a predetermined thickness. The cutting apparatus comprises: a cutter guide inserted into both edges of the flange of the stainless steel pipe and engaged to guide a cutter; and cutter saw teeth inserted into both edges of the flange of the stainless steel pipe and engaged to cut polyethylene which is a cutting target while moving according to guidance by the cutter guide.

Description

Upper polyethylene cap cutting device molded and glued to stainless steel pipe French}

The present invention is a cutting device that cuts the polyethylene formed into a predetermined thickness, which is coated with polyethylene to a predetermined thickness inside a stainless steel pipe used to supply hydrofluoric acid gas, and which is molded and bonded to protrude out of the french french of the stainless steel pipe. A cutter guide that guides the cutter by being inserted into both edges of a stainless steel pipe's french french, and a cutter saw blade that cuts the polyethylene to be cut while moving while being guided by the cutter guide by inserting and fastening into both edges of the stainless steel pipe's french french. It relates to a lower cutting device of the polyethylene cap molded and bonded to the French of a stainless steel tube consisting of.

The present invention is one of the devices used during the pipe manufacturing process to supply the hydrofluoric acid gas used in the semiconductor process, and inserts a polyethylene pipe that is durable against hydrofluoric acid gas into the stainless steel pipe or coats the inside with polyethylene powder to a predetermined thickness. Is done.

Polyethylene protrudes to a predetermined thickness on the french part of the stainless steel pipe so that the stainless steel pipe, which is weak due to corrosion by the hydrofluoric acid gas, is not exposed to the hydrofluoric acid gas, and the polyethylene protrudes when the french part is bolted when connecting the pipe. It is made so that they touch each other.

In order to produce polyethylene to adhere to the edge of the french flange of the stainless steel pipe with a predetermined thickness, first, it is necessary to cut the protruding part to the extent that it can be worked with a cotton polisher, and this operation can be facilitated by workers. It is the molded-bonded polyethylene cap cutting device according to the present invention.

Patents or documents related to the present invention rarely have attempted inventions because the fields of application are extremely narrow and demand is not so great.

Unexamined Patent Publication: 10-2004-0095902 Registered Patent Publication No. 10-1587441

The problem to be solved by the present invention is that when a pipe for supplying fluorine gas is manufactured, a polyethylene pipe having excellent durability against fluorine gas is inserted into the stainless steel pipe by force fitting, and the french part of the stainless steel pipe for connecting the pipes to each other In order to make a state in which polyethylene is protruded and bonded to a predetermined thickness, and molded by heating polyethylene to make a bonded state protruding to a predetermined thickness, or molded and coated by melting powder, the molded-bonded polyethylene is formed in a predetermined thickness ( It is to provide a cutting device underneath a polyethylene cap molded and bonded to a french flange of a stainless steel tube that is cut in height).

Another problem to be solved of the present invention is to be inserted into and fastened to the edge of a stainless steel pipe for the convenience of the operator during cutting, so that the operator can push or move from side to side to safely cut the width according to the diameter of the wrench. It is to provide a cutting device for a lower part of a polyethylene cap molded and bonded to a french french of a stainless steel tube provided with a cutter guide that can be adjusted and inserted into the french french.

Another problem to be solved of the present invention is that when the cutter guides installed on the left and right sides of the cutter saw blade are inserted into the edges of both sides of the stainless steel pipe, polyethylene, which is the target of cutting by the inserted and fastened position of the cutter guide. It is to provide a cutting device for a lower part of a polyethylene cap molded to a flange of a molded-bonded stainless steel tube configured to automatically determine the height of the mold.

Another problem to be solved of the present invention is a polyethylene fragment blocking member to prevent fine fragments of polyethylene generated during cutting, and a saw blade is exposed on the front side of the polyethylene fragment blocking member to cut the polyethylene, and the back side is It is to provide a cutting device under a polyethylene cap molded and bonded to a french french of a stainless steel pipe with a protective cover attached for the safety of the operator.

Another problem to be solved of the present invention is to provide a cutting device for a lower part of a polyethylene cap molded and bonded to a flange of a stainless steel tube designed and manufactured to adjust the width of a cutter guide so that a cutter can be used in response to various french diameters. There is.

Another problem to be solved of the present invention is that the handle can be installed on one side of the protective cover or the device in consideration of the operator's convenience, and the second handle is formed on a french french french in which a second handle is further installed in order to increase the operator's work efficiency. It is to provide a cutting device under the adhesive polyethylene cap.

The problem solving means of the present invention is installed on the left and right sides based on the saw blade of the cutter, and is inserted into the cutter guide for guiding the cutter by being inserted into the edges of both sides of the french french of the stainless steel tube, and inserted into the edges of both sides of the french french of the stainless steel tube. It is to provide a cutting device underneath a polyethylene cap molded and bonded to a french french of a stainless steel pipe composed of a cutter saw blade that cuts the polyethylene to be cut while being fastened and moving while being guided by a cutter guide.

Another problem solving means of the present invention is to cut the lower part of the polyethylene cap molded and bonded to the flange of the stainless steel pipe configured to cut the polyethylene to a set height when cutting the polyethylene by inserting and fastening the cutter guide into the flange of the stainless steel pipe. To provide the device.

Another problem solving means of the present invention is that the cutting part for cutting the polyethylene cap by the rotation of the saw blade has the saw blade open on the front of the cut part, and the back is molded and bonded to a french french of a stainless steel tube with a protective cover installed for the safety of the operator. It is to provide a cutting device under the polyethylene cap.

Another problem solving means of the present invention is a stainless steel with a handle attached by welding and/or fastening to the edge of one of the two cutter guides in order to increase the operator's convenience and posture stability when the operator cuts the polyethylene cap. It is to provide a cutting device under the polyethylene cap molded and bonded to the French steel pipe.

Another problem solving means of the present invention is a lower cutting device of a polyethylene cap molded and bonded to a flange of a stainless steel tube provided with a width adjusting member capable of adjusting the width of the cutter guide so that the cutter can be used in response to various french diameters. It is in providing.

As another problem solving means of the present invention, even if the diameter of the cutter saw blade of the polyethylene cap cutting device is smaller than the diameter of the polyethylene cap, the lower center of the cap to be cut is empty, so that the operator is left and/or in a state where the cutter guide is fastened to the french. Or, it is to provide a cutting device under the polyethylene cap molded and bonded to the french french french of a stainless steel tube configured to be easily cut while moving to the right.

In the present invention, when cutting polyethylene by inserting and fastening cutter guides installed on the left and right sides of the cutting part into the french french of a stainless steel pipe, the operator can cut the polyethylene to the set height automatically without having to worry about adjusting the cutting height. There is.

In addition, the cutting part for cutting the polyethylene cap by the rotation of the saw blade according to the present invention opens the saw blade in the front of the cut part located between the cutting guides, and a protective cover is installed on the back side for the safety of the worker, thereby preventing a safety accident of the worker. Has a beneficial effect.

In addition, another effect of the present invention is that when an operator is cutting a polyethylene cap by welding and/or installing one more operator handle on the edge of one of the two cutter guides, both hands can be used at the same time. There is an increased effect of increasing stability and enabling quick and accurate work.

Another effect of the present invention is to install a width adjustment member that can adjust the width of the cutter guide so that the cutter can be used in response to various french diameters, so that polyethylene caps having various diameters are cut with a single cutting device. And there is no need to separately purchase a cutting device according to the diameter, there is an increased effect that can reduce the cost.

1 is a view showing a shape of the lower cutting device of the polyethylene cap molded according to the present invention as viewed from above.
FIG. 2 is a photograph of a state in which the polyethylene cap cutting device is inserted into a french wrench when the operator uses the molded-bonded polyethylene cap cutting device according to the present invention.
3 is a photograph of a result of heating and coating the inside of a curved stainless steel pipe having a memory shape among pipes of hydrofluoric acid gas using polyethylene powder.

Look at the specific content for carrying out the present invention.

The present invention is a cutting device that cuts polyethylene molded and bonded to a predetermined thickness so as to protrude to the outside of a french french of a stainless steel pipe, and coated with polyethylene to a predetermined thickness inside a stainless steel pipe used to supply hydrofluoric acid gas.

It looks at a specific embodiment according to the present invention.

<Example>

A specific embodiment according to the present invention will be described on the basis of the drawings.

The present invention is one of the devices used when manufacturing a pipe supplying HF gas used in a semiconductor process, and a polyethylene pipe that is durable against HF gas is inserted into the stainless steel pipe and protruded into the French of the stainless steel pipe. It is fastened or coated with polyethylene powder to a predetermined thickness.

In the present invention, when polyethylene, which has excellent durability against hydrofluoric acid, protrudes out of the french french of a stainless steel pipe or protrudes in a cap shape when molding and manufacturing using polyethylene powder, it is applied to the cut part (saw blade) at a set thickness (height). It relates to a polyethylene cap cutting device for cutting with a rotating saw blade installed.

Of course, it can also be used to cut polyethylene pipes protruding from the edges of the French.

In the present invention, the'polyethylene cap lower cutting device' refers to a device that cuts the lower part to a predetermined height among the caps made of polyethylene formed protruding from the edge of the french wrench.

As a specific example, FIG. 3 is a case in which the inside of a curved stainless steel pipe having a memory shape among pipes of hydrofluoric acid gas is coated with polyethylene powder, and a polyethylene cap is formed on the upper portion of the french flange of the stainless steel pipe.

The polyethylene cap formed on the upper part of the French is high, so it is cut to a set height that allows for the finishing of the polyethylene surface.

After cutting, the cut surface is sharpened with a chamfer, and when the pipes are connected with bolts, the leakage of hydrofluoric gas is prevented and the hydrofluoric gas does not directly contact stainless steel.

It looks at the specific configuration of the lower cutting device of the polyethylene cap molded according to the present invention.

The top, bottom, left, right, etc. described in the present specification are described based on the drawings, and a person skilled in the art may make various modifications based on this.

The terms of'cutting' and'cutting' described in the present specification have the same meaning, and those of ordinary skill in the art will not have a feeling of rejection for mixing the two terms.

1 is a top view of a cutting device under a molded-bonded polyethylene cap according to the present invention.

FIG. 2 is a photograph of a state in which the lower cutting device of the polyethylene cap is inserted into a French wrench when the operator uses the lower cutting device of the polyethylene cap according to the present invention.

FIG. 3 is a photograph of the result of cooling by placing a predetermined amount of polyethylene powder into a stainless steel pipe of a memory shape of a hydrofluoric acid gas pipe, heating it to a set temperature while rotating at a predetermined speed, and cooling the result with a camera. will be.

More specifically, to describe the molding coating, in order to coat the interior of the stainless steel tube with polyethylene, a predetermined amount of polyethylene powder is injected into the tube, and all the inlets are blocked so that the powder does not leak to the outside, and then for a set time at a set temperature. While rotating at a three-dimensional angle, the interior is coated with polyethylene to a predetermined thickness.

The main components of the molded-bonded polyethylene cap lower cutting device (11 in Fig. 1) according to the present invention are a cut (26 in Fig. 2) for cutting the polyethylene cap (32 in Fig. 3) by a set height (thickness), Two cutter guides (13 and 14 in Fig. 1) and two cutter guides (13 and 14 in Fig. 1) for guiding the cut part (26 in Fig. 2) by being inserted and fastened to the protrusion located at the edge of the french wrench, and a rotary motor for rotating the cut part (26 in Fig. 2). And a protective cover (16 in FIG. 1) for covering one side of the cut portion to protect the worker.

The cutting part (26 in FIG. 2) is located in the center of the cutting device under the polyethylene cap and includes a saw blade that rotates by a rotary motor.

In Fig. 2, a cutter guide (13, 14 in Fig. 1) is designed and fastened to the protrusion of the edge of the stainless steel pipe to be cut (21 in Fig. 2) on the left and right sides of the cutting unit. Has been.

The stainless steel pipe flange (21 in Fig. 2) has a bolt fastening hole formed at the edge, and the bolt fastening hole is formed to protrude larger than a normal pipe diameter.

In order to use the protruding part of the French (21 in Fig. 2), the shape of the cutter guide is designed and manufactured in the shape of a Diguon, and is configured to be inserted into the French.

The protruding portion of the French (21 in Fig. 2) refers to a portion in which a fastening hole (27 in Fig. 2) for connecting stainless steel pipes to each other using bolts is formed, that is, a portion formed larger than the diameter of the pipe. And, it means the'French' itself as referred to by ordinary technicians.

The width between the two cutter guides (13, 14 in Fig. 1) located on both sides of the cutting part with the saw blade (17 in Fig. 1) is slightly larger than the diameter of the french french (21 in Fig. 2). Or the same.

The width between the two cutter guides (13 and 14 in Fig. 1) means the width (length) measured based on the inside of the Diguon shape.

The two cutter guides (13 and 14 in Fig. 1) are designed to face each other, so that when the two cutter guides (13 and 14 in Fig. 1) are inserted and fastened into the french wrench (21 of Fig. 2), the operator When cutting the polyethylene cap (32 in Fig. 3) while pushing or moving the cutter guide, the position of the cut portion is designed and manufactured to automatically cut the polyethylene cap (32 in Fig. 3) to be cut while maintaining a set height.

The upper part of the polyethylene cap (32 in Fig. 3) protruding from the French is clogged during the coating process, but the cut part where the saw blade is located is in a donut shape with a width of less than 30 mm, so the operator pushes it using the cutter guide. And/or it can be cut easily while moving left and right.

The width between the two cutter guides in the shape of a diguon is adjusted so that the width can be changed in response to the size of the diameter of the french french (21 in Fig. 2) formed with the polyethylene cap (32 in Fig. 3) to be cut. The member is installed.

The width adjustment member may be configured to move the cutter guide to the left and/or to the right so as to fit the diameter of the french french (21 in FIG. 2) of the stainless steel pipe, and then fix it with a bolt.

The left and/or right cutter guide may be designed and manufactured to change the angle to the left and/or right, and may be configured to correspond to the change in the diameter of the french french (21 in FIG. 2).

Even if the diameter of the saw blade of the cutter is smaller than the diameter of the polyethylene cap (32 in Fig. 3), the center of the lower part of the cap to be cut is empty, so the operator is left and/or in the state that the cutter guide is fastened to the french wrench (21 in Fig. 2). It is configured to be easily cut while moving along the French in at least one of the right directions.

Another embodiment of the present invention is a polyethylene fragment blocking member (28 in FIG. 2) for blocking polyethylene fragments (sawdust) generated by a rotating saw blade (26 in FIG. 2) during cutting, and a polyethylene fragment blocking member (FIG. Based on 2 of 28), the front saw blade (26 in FIG. 2) is exposed to cut the polyethylene pipe, and the rear is equipped with a protective cover (16 in FIG. 1) for the safety of workers.

The polyethylene piece blocking member and the protective cover (16 in Fig. 1) improves durability by protecting the rotating motor and related parts that rotate the saw blade of the cut from dust or polyethylene pieces (sawdust), and protects the eyes and body of workers. Plays a role.

Another embodiment of the present invention may install a protective cover (16 in FIG. 1) or a first handle (18 in FIG. 1) on one side of the device in consideration of the operator's convenience, and to increase the work efficiency of the worker The second handle (25 in Fig. 2) is installed so that the operator can cut the polyethylene in a more stable posture.

The first handle (18 in Fig. 1) and the second handle (25 in Fig. 2) can be simply expressed as two handles. Each handle is installed in a different position with respect to the piece blocking member, so that the cutting operation can be stably performed using both hands, and the position to be cut can be achieved easily.

Based on the above-described contents, the protection scope of the present invention is examined. Of course, the scope of protection can be variously modified from the above description.

The present invention is installed on the left and right sides of the cutter saw blade, and is inserted into the cutter guide for guiding the cutter by being inserted into both edges of the french french of the stainless steel tube, and the cutter being inserted and fastened to both edges of the french french of the stainless steel tube. It consists of a saw blade of a cutter that cuts the polyethylene that is to be cut while moving forward, backward, left and right while being guided by a guide.

In addition, the molded-bonded polyethylene cap lower cutting device according to the present invention is configured to automatically cut the polyethylene to a set height when cutting the polyethylene by inserting and fastening the cutter guide into the french french of the stainless steel pipe.

The cutting part for cutting the polyethylene cap by the rotation of the saw blade has a saw blade open on the front of the cut part, a protective cover is installed on the back side for the safety of workers, and a handle is installed on one side.

In another embodiment of the present invention, when a worker cuts a polyethylene cap, in order to increase the convenience and stability of the posture of the worker, a handle is welded or connected to the edge of one of the two cutter guides based on the piece blocking member. Each is installed in a different location.

Another embodiment of the present invention is that a width adjustment member capable of adjusting the width of the cutter guide is installed so that the cutter can be used in correspondence with various french diameters, so that there is no need to separately purchase cutters corresponding to different diameters. It has an advantageous effect that can reduce the cost and the workers can facilitate the cutting operation.

The present invention is installed on the left and right side of the cutter saw blade, is inserted and fastened to both edges of the flange of the stainless steel pipe to guide the cutter, and the cutter guide is inserted and fastened to both edges of the flange of the stainless steel pipe Provides a molded-bonded polyethylene cap lower cutting device consisting of a cutter saw blade that cuts the polyethylene that is to be cut while moving while receiving the guidance of, and inserts and fastens the cutter guide into the french french of a stainless steel pipe to a set height when cutting the polyethylene. Since polyethylene can be cut, it has high industrial applicability.

11; Polyethylene cap lower cutting device
12; French (stainless steel pipe)
13; Molded polyethylene 14, 15; Cutter guide
16; Protective cover (cutter) 17; Cutting part (saw blade)
18; Handle (first handle)
21; French (stainless steel) 22; Polyethylene
23,24; Cutter guide 25; Handle 2 (2nd handle)
26; Cutting part (saw blade) 27; Fastening hole (when connecting piping)
28; Piece blocking member
31; French (stainless steel)
32; Polyethylene cap (before cutting)

Claims (7)

In the polyethylene cap lower cutting device for cutting the lower portion of the molded-bonded polyethylene cap during a pipe manufacturing process for supplying hydrofluoric acid gas,
A cutter guide installed on the left and right sides based on the cutter saw blade, inserted into a portion protruding from the edge of the stainless steel pipe, and guided the cutter to be cut to a predetermined height;
The cutter guide is inserted into and fastened to both edges of the flange of the stainless steel pipe, and includes a cutter saw blade for cutting the polyethylene to be cut while moving while being guided by the cutter guide,
When cutting polyethylene by inserting and fastening the cutter guide into the french french of the stainless steel pipe, the lower part of the polyethylene cap is cut to the set height from the french french of the stainless steel pipe,
Even if the saw blade diameter of the cutting part is smaller than the diameter of the polyethylene cap, the inside of the lower part of the polyethylene cap to be cut is empty, so while the cutter guide is fastened to the french wrench, the cutter blade is easily cut while moving in at least one of the left and right directions. Is configured to
A cutting device underneath the polyethylene cap molded and bonded to the french french of a stainless steel pipe, characterized in that a piece blocking member that prevents pieces of polyethylene generated by the rotation of the saw blade opened in the front of the cutting part is installed on the front of the protective cover. delete The method of claim 1,
The cutting device for cutting the polyethylene cap by the rotation of the saw blade has the saw blade open at the front of the cut part, and a protective cover is installed on the back for the safety of the operator. . The method of claim 1,
When the operator cuts the polyethylene cap, the operator selects one of the two cutter guides and welds them to the edges in order to increase the operator's convenience and stability of posture, and the operator handles are installed in different positions based on the piece blocking member. A cutting device underneath the polyethylene cap molded and bonded to the flange of the stainless steel pipe made of The method of claim 1,
A lower cutting device of a polyethylene cap molded and bonded to a flange of a stainless steel pipe, characterized in that a width adjustment member capable of adjusting the width of the cutter guide is additionally installed so that the cutter can be used in correspondence with various french diameters. delete delete

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