KR102505070B1 - Non-welding expansion joint manufacturing apparatus - Google Patents

Abstract

The present invention relates to a non-welding expansion joint manufacturing device that manufactures the peaks and valleys of an expansion joint with a thickness of 3 mm or more without welding. The device comprises: a pressurizing unit installed to be able to move up and down from a base and forming peaks and valleys by pressurizing the inner circumferential surface of a supplied expansion joint; a support unit disposed on the other side of the pressurizing unit, moving up and down while supporting the pressurizing unit, and tilting to supply and discharge the expansion joint to the pressurizing unit; a forming unit movably disposed below the pressurizing unit and supporting the outer circumferential surface of the supplied expansion joint to guide the formation of peaks and valleys by the pressurizing unit; and a high-frequency heater disposed between the pressurizing unit and the support unit and heating the expansion joint so that hot forming can be performed when forming the peaks and valleys on the expansion joint. Since there are no welded areas, the reliability of a product increases.

Description

Non-welding expansion joint manufacturing apparatus {Non-welding expansion joint manufacturing apparatus}

The present invention relates to a weldingless expansion joint manufacturing apparatus, and more particularly, to a weldingless expansion joint manufacturing apparatus for manufacturing the ridges and valleys of an expansion joint having a thickness of 3 mm or more by welding.

In facilities where a large amount of fluid flows, such as steel mills, oil refineries, chemical plants, etc., as the fluid flows into the pipe, the pressure or vibration of the fluid is caught in the pipe and there is a risk of damage.

Among them, in the case of a piping system in which a high-temperature fluid flows, an expansion joint for preventing deformation and breakage is connected between the piping causing deformation because the piping thermally expands due to temperature.

The expansion joint constitutes a corrugated portion in which a plurality of peaks and valleys are formed in the center of the cylindrical pipe so that the force generated from the fluid can be offset and resolved by the expansion and contraction of the corrugated portion, thereby preventing the pipe from being damaged.

These expansion joints are used not only for general industrial machinery such as automobiles, ships, plants, and pumps, but also for precision hydraulic or pneumatic equipment such as aircraft accumulators, liquid fuel rocket engines, spacecraft compressors, solar engines, and special purpose pressure devices. Its use is spreading to a wide range such as containers and experimental devices.

However, the wrinkles are gradually weakened by continuous expansion and contraction, and are damaged during long-term use.

there is a risk of becoming

In this way, when the wrinkle part is damaged, in order to replace it, an expansion joint is ordered and obtained, and then repaired, so it takes several days to replace it, and during this period, the entire facility cannot be operated, which causes a decrease in productivity due to facility shutdown. The situation is.

In the above expansion joint manufacturing method, if the thickness of the expansion joint is 2 mm or less (thin plate), the ridge and valley are formed by a forming roller, and if the thickness of the expansion joint is 3 mm or more (thick plate), the ridge and valley are formed. After cutting two stainless plates into a ring shape, the cut ring-shaped plate material is press-bent so that the cross section has a circular 1/4 shape, and the two bent plates are welded in a butt-to-butt state to form an expansion joint. One acid constituting is prepared. Thereafter, when manufacturing one or more mounts formed by welding, several mounts are manufactured through continuous welding.

However, since the expansion joint formed of a thick plate with a thickness of 3 mm or more as described above is subject to repeated contraction and expansion, the welded part forming the mountain is easily cracked or deformed, resulting in poor durability and significantly lowered lifespan. there is

In addition, two plates molded into a curved surface are manufactured through welding, and the processing of the welded part and the non-destructive inspection of the welded part result in reduced productivity, excessive manufacturing time and manufacturing cost, and thermal deformation of the welded part. There is a problem in which the reliability of the product is lowered.

Domestic Patent No. 10-0755260

The present invention was made to solve the above problems and technical prejudice, and provides a non-welding expansion joint manufacturing device that forms peaks and valleys without applying a welding method to an expansion joint having a thickness of 3 mm or more. There is a purpose.

The non-welding expansion joint manufacturing apparatus of the present invention for achieving the above object is installed to be able to move up and down from the base, and pressurizes the inner circumferential surface of the supplied expansion joint to form peaks and valleys; a support unit that is disposed on the other side of the pressurization unit, moves up and down together while supporting the pressurization unit, and is tilted so as to supply and discharge the expansion joint to the pressurization unit; a forming unit disposed movably below the pressurizing unit and guiding the ridges and valleys to be formed by the pressurizing unit by supporting the outer circumferential surface of the supplied expansion joint; and a high-frequency heater disposed between the pressurization unit and the support unit to heat the expansion joint so that hot forming can be performed when forming mountains and valleys on the expansion joint.

At this time, the pressurizing unit includes a rotary shaft through which an expansion joint supplied while being spaced apart from the base is disposed, and is provided with an upper roller that presses an inner circumferential surface of the expansion joint outward to form peaks and valleys; a first driving source disposed on one side of the rotating shaft to rotate the rotating shaft; and a second drive source connected to the first drive source and elevating the first drive source.

In addition, it is preferable that at least one guide rod for guiding the elevation of the first driving source is provided between the second driving source and the base.

The forming unit includes a pair of lower rollers disposed below the rotating shaft and forming a receiving space in which the upper roller is accommodated so that hills and valleys are formed when the inner circumferential surface of the expansion joint is pressed by the upper roller; a moving member movably installed on the base and supporting the lower roller in a rolling motion; and a third driving source installed on the base and moving the movable member in a connected state with the movable member.

On the other hand, the support unit includes a tilting frame having a predetermined length installed to be tiltable on the base; an elevating member installed in the tilting frame to be able to move up and down, to which the other side of the rotation shaft is coupled or separated, and which moves up and down in conjunction with the first drive source in a state in which the rotation shaft is coupled; a fourth drive source installed on the tilting frame and elevating the elevating member in a state connected to the elevating member; and a fifth driving source installed on the base and tilting the tilting frame.

Finally, a tapered coupling groove to which the other side of the rotation shaft is coupled is formed on the inside of the elevating member, and a coupling piece rotatably supporting the rotation shaft and having a shape corresponding to the coupling groove is provided on the other side of the rotation shaft. do.

According to the non-welding expansion joint manufacturing apparatus of the present invention having the above configuration, the expansion joint having a thickness of 3 mm or more is integrally molded with peaks and valleys without welding, so that durability due to contraction and expansion is improved, cracking Or, there is an excellent effect of preventing deformation and extending life at the same time.

In addition, since the peaks and valleys are manufactured in a non-welding method, there is no need for welding processing and non-destructive inspection as in the past, so manufacturing time and manufacturing costs are drastically reduced, and product reliability increases because there are no welded areas. has the effect of

1 is a front view showing an expansion joint manufacturing apparatus according to the present invention,
Figure 2 is a plan view of Figure 1,
Figure 3 is a side view of Figure 1;
4 is a cross-sectional view showing an expansion joint in which peaks and valleys are manufactured by the expansion joint manufacturing apparatus according to the present invention;
5 to 9 are process charts showing a process of forming hills and valleys in an expansion joint using the expansion joint manufacturing apparatus according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the accompanying drawings. Embodiments of the present invention may be modified in various forms, and the scope of the present invention should not be construed as being limited to the embodiments described below. These embodiments are provided to explain the present invention in more detail to those skilled in the art to which the present invention pertains. Accordingly, the shape of each element shown in the drawings may be exaggerated to emphasize a clearer description.

Terms such as first and second may be used to describe various components, but the components should not be limited by the terms. Terms are only used to distinguish one component from another.

Terms used in this application are only used to describe specific embodiments, and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly dictates otherwise. In this application, the terms "include" or "have" are intended to designate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, but one or more other features It should be understood that the presence or addition of numbers, steps, operations, components, parts, or combinations thereof is not precluded.

1 is a front view showing an expansion joint manufacturing apparatus according to the present invention, FIG. 2 is a plan view of FIG. 1, FIG. 3 is a side view of FIG. 1, and FIG. 4 is an expansion joint manufacturing apparatus according to the present invention. A cross-sectional view showing the manufactured expansion joint, and FIGS. 5 to 9 are process charts showing a process of forming hills and valleys in an expansion joint using the expansion joint manufacturing apparatus according to the present invention.

As shown in FIGS. 1 to 4, the expansion joint 10 manufacturing apparatus of the present invention is installed to be able to move up and down from the base B, and pressurizes the inner circumferential surface of the supplied expansion joint 10 to form the peak 11 and the valley. Pressing unit 100 for molding (12); A support unit 300 that is disposed on the other side of the pressurization unit 100, moves up and down together while supporting the pressurization unit 100, and is tilted to supply and discharge the expansion joint 10 to the pressurization unit 100 ); A forming unit disposed to be movable below the pressing unit 100 and supporting the outer circumferential surface of the supplied expansion joint 10 to guide the formation of peaks 11 and valleys 12 by the pressing unit 100. (200); And it is disposed between the pressurization unit 100 and the support unit 300, and heats the expansion joint 10 so that hot forming can be performed when forming the peak 11 and the valley 12 on the expansion joint 10. It includes; high-frequency heater 400.

Prior to the description, the biggest feature of the manufacturing apparatus of the expansion joint 10 of the present invention is that the peak 11 and the valley 12 do not adopt the conventional welding method for the circular expansion joint 10 having a thickness of 3 mm or more. ) by integrally molding, it is to drastically reduce manufacturing time and manufacturing cost, such as welding and non-destructive inspection according to non-welding.

In addition, each component to be described later is, of course, controlled by a controller not shown.

As shown in FIG. 1, in the manufacturing apparatus of the expansion joint 10 of the present invention, a pressurizing unit 100 for forming peaks 11 and valleys 12 in the expansion joint 10 is disposed on the left side of the drawing, , The forming unit 200 for guiding the formation of peaks 11 and valleys 12 is disposed on the lower side of the expansion joint 10, and the expansion joint 10 with a pressurizing unit 100 on the right side of the drawing. ) A support unit 300 for supplying is disposed, and between the pressurization unit 100 and the support unit 300, a high-frequency heater 400 that allows hot forming to be performed when forming the peak 11 and the valley 12 ) is placed.

Hereinafter, each configuration will be described in more detail.

The pressing unit 100 presses the inner circumferential surface of the expansion joint 10 supplied from the outside by tilting the support unit 300 outward to form a plurality of peaks 11 and valleys 12, It is installed to be able to move up and down from the base (B) disposed in a predetermined area in the upward direction on the drawing.

That is, the pressurizing unit 100 allows a plurality of peaks 11 and valleys 12 to be formed on the outer circumferential surface of the expansion joint 10 through descent.

The pressurizing unit 100 includes a rotating shaft 110, a first driving source 130 and a second driving source 140 as shown in FIGS. 1 and 2 .

The rotating shaft 110 has a cylindrical shape and maintains a predetermined length, and is spaced apart from the base B in the upper direction by a predetermined interval on the drawing.

An expansion joint 10 having both sides open and having a thickness of 3 mm or more is supplied and disposed through the rotation shaft 110 (see FIG. 5), and the expansion joint 10 disposed at an appropriate position in the longitudinal direction of the rotation shaft 110 One upper roller 120 is fixed to form peaks 11 and valleys 12 facing outward while pressing the inner circumferential surface outward.

That is, while the rotating shaft 110 rotates, the ridge 11 and the valley 12 are formed while gradually pressing the inner circumferential surface of the expansion joint 10 .

The first drive source 130 is disposed on the left side of the rotation shaft 110 in the drawing, and rotates the rotation shaft 110 at a set speed while connected to the rotation shaft 110 .

Here, the first driving source 130 is preferably a hydraulic motor, but since it can be implemented through various driving sources, the type of driving source is not limited.

The second driving source 140 is disposed in the upper direction of the first driving source 130 in the drawing, and is connected to the body of the first driving source 130 through a rod (L).

The second driving source 140 moves the first driving source 130 connected through the advance and retreat of the rod L up and down on the drawing.

At this time, the second drive source 140 is preferably a hydraulic cylinder, which forms the peak 11 and the valley 12 on the expansion joint 10 through the upper roller 120 while lowering the first drive source 130. This is to give a pressing force to do so.

That is, when the rod L of the second driving source 140 descends downward in the drawing, the upper roller 120 of the rotary shaft 110 rotated by the first driving source 130 while the first driving source 130 descends The inner circumferential surface of the expansion joint 10 is pressed outward so that the peak 11 and the valley 12 can be formed.

At this time, four guide rods 150 are placed vertically between the second driving source 140 and the base B so that the lifting of the first driving source 130 moving up and down by the second driving source 140 can be guided. are provided

In addition, the first driving source 130 is provided with a plate 131 having a predetermined thickness through which four guide rods 150 pass through each other while being coupled to the first driving source 130 .

In this case, since the first drive source 130 is guided by the guide rods 150 and the plate 131, stable elevation without flow is achieved.

The stable elevation of the first driving source 130 is achieved without movement when forming the peak 11 and valley 12 in the expansion joint 10 while the upper roller 120 of the rotational shaft 110 moves down along with the rotation. This is to ensure that the peaks 11 and valleys 12 can be formed uniformly by allowing them to face in the straight direction accurately.

The support unit 300 is disposed on the right side of the pressurization unit 100 in the drawing and moves up and down together while rotatably supporting the rotary shaft 110 of the pressurization unit 100 .

That is, when the first drive source 130 moves up and down by the second drive source 140, it moves up and down together with the rotation shaft 110 while supporting the rotation shaft 110 that moves up and down together.

In addition, the support unit 300 is configured to supply and discharge the expansion joint to the rotary shaft 110 of the pressurization unit 100 in order to form the peak 11 and the valley 12 in the expansion joint 10, As shown in FIG. 1, tilting is performed in the direction of the dashed-dotted line.

The support unit 300 includes a tilting frame 310, a lifting member 320, a fourth driving source 330, and a fifth driving source 340, as shown in FIGS. 1 to 3 .

The tilting frame 310 maintains a predetermined length to be upright in the upward direction in the drawing, and is tiltably installed on the base B through a hinged lower end in the longitudinal direction.

At this time, an elevating space 311 is formed inside the tilting frame 310 along the longitudinal direction of the tilting frame 310 so that the elevating member 320 can be disposed to be able to move up and down.

Also, the length of the tilting frame 310 may be sufficient as long as the elevating member 320 to be described below can reach the top dead center position of the first driving source 130 .

The lifting member 320 is installed to be able to move up and down in the lifting space 311 of the tilting frame 310, and the right side of the rotation shaft 110 is coupled or separated in the drawing, and the first driving source ( 130) moves up and down (elevation) in conjunction with each other when moving up and down (elevating and descending).

At this time, male and female guide rails LM are provided on the outer side of the elevating member 320 and inside the elevating space 311 of the tilting frame 310 in the longitudinal direction so that the elevating member 320 can be stably moved. .

That is, the elevating member 320 rotatably supports the rotation shaft 110 while interlocking with the rotation shaft 110 to form the peak 11 and the valley 12 in the expansion joint 10. parallelism can be guaranteed.

On the other hand, inside the elevating member 320, a tapered coupling groove 321 is formed so that the right side of the rotation shaft 110 can be coupled on the drawing, and the right end of the rotation shaft 110 is rotatably It is preferable that a coupling piece 111 having a shape corresponding to the taper direction of the coupling groove 321 is provided in a state in which a bearing (not shown) is built in to support it.

Here, the reason why the coupling groove 321 and the taper direction of the coupling piece 111 have a corresponding shape is that the tilting frame 310 tilted in the direction of the dashed-dotted line as shown in FIG. 1 by the fifth driving source 340 described later This is to ensure that the combination of the coupling groove 321 and the coupling piece 111 can achieve a stable coupling state without obstacles to each other when erected in the vertical direction.

The fourth driving source 330 is disposed above the tilting frame 310, and the lifting member 320 is moved in a state in which the rod L of the fourth driving source 330 is connected to the lifting member 320. elevate down

That is, when the first driving source 130 is moved up and down by the second drive source 140 while being controlled by the controller, the fourth driving source 330 interlocks with the elevation of the rotating shaft 110 so that the horizontal axis 110 can be maintained. Thus, the elevation of the elevation member 320 is achieved.

The fifth driving source 340 is tiltably installed on the base B, and the rod L of the fifth driving source 340 is connected to one side of the tilting frame 310 to make the tilting frame 310 as shown in FIG. Tilt like a dotted line.

That is, when the fifth driving source 340 supplies the expansion joint 10 toward the rotating shaft 110 or discharges the expansion joint 10 in which the peak 11 and the valley 12 are formed, the tilting frame 310 By tilting, the convenience of supply and discharge of the expansion joint 10 can be ensured.

At this time, it is preferable that the fifth driving source 340 is composed of a hydraulic pressure or an air cylinder. This is because the expansion joint 10 itself is made of metal and the tilting frame 310 is also made of metal having weight, so that tilting is stable. is to make it possible to

The forming unit 200 is movably disposed on the upper surface of the base B, which is the lower part of the pressing unit 100, and supports the outer surface of the expansion joint 10 supplied to the rotary shaft 110 while pressing the pressing unit 100. When the inner surface is pressed by the upper roller 120 of the ), it guides the outer circumferential surface of the expansion joint 10 so that the peak 11 and the valley 12 can be formed.

That is, when the upper roller 120 descends, by guiding both side surfaces of the upper roller 120 descending in the outer direction of the expansion joint 10, the set peaks 11 and valleys 12 can be formed. .

The molding unit 200 as described above includes a pair of lower rollers 210, a moving member 220, and a third driving source 230 as shown in FIGS. 1 and 2.

The lower rollers 210 are composed of a pair, and are disposed in a spaced apart state facing each other with respect to the upper roller 120 at the bottom of the rotating shaft 110.

That is, in the pair of lower rollers 210, peaks 11 and valleys 12 are formed by the upper roller 120 when the inner circumferential surface of the expansion joint 10 is pressed outward by the upper roller 120. It is moved to a distance (the width of the peak 11 and the valley 12) set by the moving member 220 to be described later to form an accommodation space in which the upper roller 120 is accommodated.

The movable member 220 is movably installed on the base (B) and supports the lower roller 210 to be capable of rolling.

At this time, of course, the movable member 220 moves on the base (B) on the guide rail (LM) coupled in male and female.

That is, the moving member 220 of each lower roller 210 moves in the left and right directions on the drawing while being controlled by the controller, and in the moved state as shown in FIG. 7, the expansion joint 10 by the lowering of the upper roller 120 A receiving space in which the upper roller 120 is accommodated is formed so that the peak 11 and the valley 12 can be formed.

The third driving source 230 enables the movement of the movable member 220 as described above to be performed on the base (B), is installed on the base (B), and the rod (L) of the third driving source 230 Moves the movable member 220 according to the advance and retreat of the rod (L) while connected to the movable member 220.

The high frequency heater 400 is disposed between the pressurization unit 100 and the support unit 300 as shown in FIGS. ) Heats the expansion joint 10 using high frequency so that hot forming can be performed during molding.

At this time, the high-frequency heater 400 may be arranged in a band shape on both sides of the upper roller 120 as shown, or, alternatively, one of the high-frequency heaters 400 is installed on the inside of the expansion joint 10. and the other may be disposed outside of the expansion joint 10.

The high-frequency heater 400 as described above heats the temperature of the expansion joint 10 up to 500 degrees and at the same time makes the temperature of the entire expansion joint 10 uniformly distributed, so that the upper roller 120 and the lower roller When forming the peaks 11 and valleys 12 using 210, the uniformity of the peaks 11 and valleys 12 to be formed can be uniformly formed.

In this embodiment, it is installed in a band shape as shown in the drawing in order to minimize thermal energy loss of the high frequency heater 400.

Here, since the high frequency heater 400 is a conventional technology, detailed description thereof will be omitted.

Hereinafter, a process of forming the peak 11 and the valley 12 in the expansion joint 10 using the expansion joint 10 manufacturing apparatus according to the present invention will be described with reference to the accompanying drawings.

First, the tilting frame 310 is tilted to the right on the drawing as indicated by the dashed-dot line in FIG. 1 .

When the tilting of the tilting frame 310 is completed, the operator returns the tilting frame 310 to its original position after disposing the expansion joint 10 as the rotary shaft 110 penetrates.

In this case, the expansion joint 10 is supported by a pair of lower rollers 210 as shown in FIG. 5 .

At this time, the high-frequency heater 400 heats the expansion joint 10 until it reaches a set temperature through high-frequency emission.

Thereafter, when the heating of the expansion joint 10 is completed, the first driving source 130 is driven to rotate the upper roller 120 in the state of FIG. 5 while the second driving source 140 rotates the guide rod 150. ) and descends downward on the drawing.

At this time, the pair of lower rollers 210 that are spaced apart move set by the driving of the third driving source 230 .

here. The upper roller 120 and the lower roller 210 may be lowered and moved at the same time, or the lower roller 210 may be moved first, so the order is not limited.

When the lowering and movement of the upper roller 120 and the lower roller 210 are completed as shown in FIG. 6, the upper roller 120 rotates the inner surface of the expansion joint 10 in the direction of the arrow by the second driving source 140. while pressurizing.

As shown in FIG. 7, the upper roller 120 descends as much as the set depth of the peak 11 and the valley 12, and the pair of lower rollers 210 support both sides of the descending upper roller 120. It guides the expansion joint 10 so that the peak 11 and the valley 12 can be formed.

When the single peak 11 and valley 12 are formed on the expansion joint 10, the pair of lower rollers 210 are moved in the direction of the arrow in FIG. 8 by the third drive source 230, and the upper roller (120) rises in the direction of the arrow by the second driving source (140).

When the upper roller 120 and the lower roller 210 are restored in the state of FIG. 8 , the operator moves the expansion joint 10 as shown in FIG. 9 to form the next peak 11 and valley 12 .

When the movement of the expansion joint 10 is completed, the next peak 11 and valley 12 are formed while moving the upper roller 120 and the lower roller 210 as described above.

The shaping of the hills 11, 12, and 12 is repeated as many times as desired.

Since the peak 11 and the valley 12 of the expansion joint 10 are integrally formed on the body of the expansion joint 10 without applying a welding method, reliability of the product is increased.

As described so far, in the non-welding expansion joint manufacturing apparatus of the present invention, durability due to contraction and expansion is improved as the expansion joint having a thickness of 3 mm or more is integrally molded with peaks and valleys to which no welding method is applied, resulting in cracking or cracking. There is an excellent effect of preventing deformation and extending life at the same time.

In addition, since the peaks and valleys are manufactured in a non-welding method, there is no need for welding processing and non-destructive inspection as in the past, so manufacturing time and manufacturing costs are drastically reduced, and product reliability increases because there are no welded areas. has the effect of

In the above, the weldingless expansion joint manufacturing apparatus of the present invention has been described with preferred embodiments and accompanying drawings, but this is only intended to help understanding of the invention and is not intended to limit the technical scope of the invention thereto.

That is, various modifications or modifications are possible to those skilled in the art without departing from the technical gist of the present invention, and such changes or modifications are within the technical scope of the present invention in view of the interpretation of the claims. Needless to say, being within

10: expansion joint 11: mountain
12: goal 100: pressurization unit
110: axis of rotation 111: coupling piece
120: upper roller 130: first driving source
131: plate 140: second driving source
141: support plate 150: guide rod
200: molding unit 210: lower roller
220: moving member 230: third driving source
300: support unit 310: tilting frame
320: lifting member 321: coupling groove
330: 4th drive source 340: 5th drive source
400: high frequency heater 500: expansion joint manufacturing device
B: Base L: Rod
LM : Guide rail

Claims (6)

a pressing unit 100 installed to be able to move up and down from the base B and pressurizing the inner circumferential surface of the supplied expansion joint 10 to form peaks 11 and valleys 12;
A support unit 300 that is disposed on the other side of the pressurization unit 100, moves up and down together while supporting the pressurization unit 100, and is tilted to supply and discharge the expansion joint 10 to the pressurization unit 100 );
A forming unit disposed to be movable below the pressing unit 100 and supporting the outer circumferential surface of the supplied expansion joint 10 to guide the formation of peaks 11 and valleys 12 by the pressing unit 100. (200); and
It is disposed between the pressurization unit 100 and the support unit 300 and heats the expansion joint 10 so that hot forming can be performed when the peak 11 and the valley 12 are formed on the expansion joint 10. A heater 400; including,
The pressurization unit 100 is disposed so that the expansion joint 10 supplied while being spaced apart from the base B penetrates, and presses the inner circumferential surface of the expansion joint 10 outward to form a peak 11 and a valley 12. ) The rotary shaft 110 provided with an upper roller 120 for forming; A first drive source 130 disposed on one side of the rotation shaft 110 to rotate the rotation shaft 110; and a second drive source 140 connected to the first drive source 130 and elevating the first drive source 130.
delete According to claim 1,
Non-welding expansion joint manufacturing apparatus, characterized in that at least one guide rod 150 for guiding the elevation of the first drive source 130 is provided between the second drive source 140 and the base (B).
According to claim 1,
The molding unit 200,
Disposed below the rotational shaft 110, the upper roller 120 is accommodated so that peaks 11 and valleys 12 can be formed when the inner circumferential surface of the expansion joint 10 is pressed by the upper roller 120 A pair of lower rollers 210 forming an accommodation space;
a movable member 220 movably installed on the base B and supporting the lower roller 210 in a rolling motion; and
A non-welding expansion joint manufacturing apparatus, characterized in that composed of a third drive source 230 installed on the base (B) and moving the movable member 220 in a state connected to the movable member 220.
According to claim 1,
The support unit 300,
a tilting frame 310 having a predetermined length installed to be tiltable on the base (B);
An elevating member 320 installed in the tilting frame 310 to be able to move up and down, to which the other side of the rotary shaft 110 is coupled or separated, and which moves up and down in conjunction with the first driving source 130 in a state in which the rotary shaft 110 is coupled );
a fourth drive source 330 installed on the tilting frame 310 and elevating the elevating member 320 while connected to the elevating member 320; and
A non-welding expansion joint manufacturing apparatus, characterized in that composed of; a fifth driving source 340 installed on the base (B) and tilting the tilting frame 310.
According to claim 5,
A tapered coupling groove 321 to which the other side of the rotating shaft 110 is coupled is formed inside the elevating member 320, and the other side of the rotating shaft 110 rotatably supports the rotating shaft 110 and the coupling groove Non-welding expansion joint manufacturing apparatus, characterized in that the coupling piece 111 having a shape corresponding to (321) is provided.

Images