KR20120006333A - Hybrid type apparatus and equipment for manufacturing a pipe continuously - Google Patents

Abstract

PURPOSE: A manufacturing device for a hybrid continuous pipe and a manufacturing facility using the same are provided to prevent overload applied to a mold and a moving band by implementing forward movement of material for forming a pipe with a moving unit and a pusher. CONSTITUTION: A manufacturing device for a hybrid continuous pipe(100) comprises a rotary shaft(110), molds(120), a rotating unit, a moving unit(140), a moving band(129), a first cam plate(113), and pushers. Molds surround the periphery of a rotary shaft and are formed in a longitudinal direction. The rotating unit makes the molds rotating with the rotary shaft to be unified. While the molds are rotating, the moving unit makes the molds sequencely moved forward and backward in a longitudinal direction according to arrangement order along a circumferential direction of the rotary shaft. The moving band is spirally wounded around the outer surface of the molds at plural times and transfers material forming a pipe to a longitudinal direction. In the front of the moving unit, the first cam plate is obliquely arranged in the outer surface of the molds. The pushers push the moving band in a longitudinal direction of the molds.

Description

Hybrid type apparatus and equipment for manufacturing a pipe continuously}

The present invention relates to a hybrid type continuous pipe manufacturing apparatus and a manufacturing equipment using the same, and more particularly, to a hybrid type continuous pipe manufacturing apparatus and a manufacturing equipment using the same can improve the pipe production efficiency.

As a production method of the continuous pipe, a steel band type (related patent: Patent registration No. 0853823 by the present applicant), a collect type (related patent: Patent No. 0939572 by the present applicant), etc., depending on the type of mold used. Separated by. Common to these approaches is the disadvantage of requiring many years of professional knowledge in the field to produce high quality pipes and requiring highly skilled training for the operation of the equipment.

In the case of the steel band type, for long steel bands, several meters of steel bands are successively used in series, and stress concentration occurs at the joints of the steel bands during pipe production. There is a problem that the band portion or its joints are worn, broken or cut. In addition, in the case of a problem such as cutting in the steel band, it takes a very long time to recover the steel band and to rebuild and operate the equipment, which greatly reduces productivity and wastes manpower.

It is an object of the present invention to provide a hybrid type continuous pipe manufacturing apparatus and a manufacturing facility using the same, which can extend the life of the collect mold and the transfer band and increase the pipe production efficiency by mixing the steel band type and the collect type.

According to an embodiment of the present invention, the rotary shaft rotates in the longitudinal axis direction by a rotational force of a driving source, and is disposed along the circumferential direction of the rotary shaft so as to surround the circumference of the rotary shaft, and arranged parallel to each other with respect to the longitudinal axis direction. In the circumferential arrangement order of the rotating shaft, a plurality of molds formed in the longitudinal axis direction, the rotating means for rotating the plurality of molds integrally with the rotary shaft, and the plurality of the molds rotate together with the rotary shaft, After moving the plurality of molds in sequence with respect to the longitudinal axis in sequence, the moving means for moving backwards sequentially, and continuously supplied so as to be wound spirally a plurality of times along the longitudinal direction of the molds on the outer peripheral surface of the molds The pipe is provided on the outer peripheral surface while the mold is rotated A transfer band for forwarding the dragon material forward with respect to the longitudinal axis direction, and is disposed on the outer circumferential surface of the molds in front of the moving means, and is inclined with the longitudinal direction of the molds, and the molds are rotatable relative to each other. A plurality of first cam plates having an opening to be inserted and spaced apart from each other in the circumferential direction along the outer circumferential surface of the molds between the first cam plate and the transfer band, and pushing the transfer bands in the longitudinal direction of the molds; A hybrid type continuous pipe making apparatus including pushers is provided.

In addition, another embodiment of the present invention, the rotation axis that rotates in the longitudinal axis direction by the rotational force of the drive source, and is disposed along the circumferential direction of the rotation axis so as to surround the circumference of the rotation axis, and arranged side by side with respect to the longitudinal axis direction A plurality of molds elongated in the longitudinal axis direction, rotation means for integrally rotating the plurality of molds with the rotary shaft, and disposed on an outer circumferential surface of the molds in front of the moving means, A first cam plate disposed in an inclined state, the first cam plate having an opening through which the molds are rotatably inserted, and continuously wound on the outer circumferential surface of the molds to be spirally wound a plurality of times along the longitudinal direction of the molds; The longitudinal axis of the pipe forming material provided on the outer circumferential surface as the molds rotate A conveyance band for forward conveyance with respect to the fragrance, fixed on the forms corresponding to between the first cam plate and the conveyance band, forcing the forms forward relative to the longitudinal axis, and moving the conveyance band in the forward movement direction A plurality of pushers and a plurality of pushers, which are circumferentially provided on a part surface of the first cam plate so that the molds return to their original positions after moving forward by one rotation about the longitudinal axis. It provides a continuous pipe manufacturing apparatus comprising a return means for guiding.

In addition, in the above embodiment, at the same time as each mold performs one rotation about the longitudinal axis, the moving means may automatically return the mold to the original position. Here, the moving means is fixed to the frame, the front portion of the rotating shaft is inserted so as to be relatively rotatable, the cam member having a closed curved cam surface is formed on the outer surface in the circumferential direction, and the front portion of each mold It may be fixed to each, and when the mold is rotated may include a second cam plate for moving each part back and forth while moving a portion along the cam surface. The cam member may include a circular tubular cam portion into which the front portion of the rotating shaft is inserted. Here, the cam surface extends from the first position to the second position of the outer circumferential surface of the cam portion in a spiral form with respect to the longitudinal axis direction, and includes a first groove portion formed in a groove structure, and the first position and the second position. The connection may include a second groove formed in the groove structure. In addition, the second cam plate may be guided along the first groove to move forward the corresponding mold, and then move along the second groove to move the corresponding mold back to its original position.

And, in the above embodiment, each pusher, the contact portion in contact with the first cam plate, a fixing portion fixed on the outer peripheral surface of the mold, and one end is connected to the contact portion, together with the mold 1 The other end is guided in the longitudinal direction of the mold by the fixing portion while rotating, and pushes the conveying band in the longitudinal direction of the mold, and when the one end of the rotation is completed, the main body is moved back to the original position by the elastic force can do. In this case, the main body portion is coupled to the contact portion, the tube portion is guided into the through hole of the fixing portion to move forward or backward in the longitudinal direction of the mold, and disposed so that the tube portion is inserted between the contact portion and the fixing portion, When the pipe portion is advanced in the longitudinal direction of the mold, it may include a spring portion for generating an elastic restoring force in the direction to reverse the pipe portion.

And, in the other embodiment, the pusher is provided on the bracket which is fixed to the front portion of the each mold, and the upper surface of the bracket, when each mold rotates with the rotary shaft of the first cam plate Moving along a surface, it may include a roller means that is inserted into the return means when the mold is rotated one rotation about the longitudinal axis.

In the above and other embodiments, the pushers may be fixed on all or some of the molds, respectively. In addition, with respect to the circumferential direction of the rotation axis, the forward movement of the molds and the forward movement of the transfer band can be synchronized. And, it may further include a release film disposed between the mold and the transfer band so as to integrally surround the outer peripheral surface of each of the mold.

In addition, in one embodiment and the other embodiment, the rotating means is disposed between the mold and the rotating shaft spaced apart from each other along the longitudinal axis direction, and smoothly guides the forward and backward movement of the mold and It includes a plurality of linear bearings for rotating each mold integrally with the rotary shaft, each of the molds may be formed in the inner surface facing the rotation axis in the longitudinal axis direction. At this time, the linear bearing is coupled to the rotary shaft so as to surround the outer circumferential surface of the rotary shaft, supported by the bearing housing and the bearing housing to rotate together with the rotary shaft, the circumferential direction of the bearing housing It may include balls arranged to allow relative rotation and relative linear movement in the groove.

In addition, the hybrid type continuous pipe manufacturing apparatus according to the one embodiment and another embodiment, further comprises a rolling bearing disposed between the rotating shaft and the plurality of molds to prevent sagging of the plurality of molds. Can be. In addition, the plurality of molds are arranged to be in close contact with each other to the extent that the relative forward and backward movement between the adjacent molds, the outer surface of the plurality of the mold has a structure of a polygonal column, an elliptical column or a cylinder as a whole, the same length It may have the same width as.

In addition, the present invention is a hybrid type continuous pipe manufacturing apparatus, a frame disposed in an annular shape to surround the conveying band, and a plurality of bobbins spaced apart from each other along the circumferential direction of the frame and providing the material It is provided, and provides a hybrid type continuous pipe manufacturing equipment comprising a structure for controlling the rotational speed and the rotational direction of the frame to adjust the direction or the winding angle of the material wound on the mold.

In this case, a plurality of structures are installed at intervals set along the longitudinal direction of the rotating shaft such that at least two of the plurality of material layers are formed by winding in multiple directions in different directions or at different angles with respect to the cross section of the pipe to be manufactured. Can be.

In addition, by adjusting the rotational direction or the rotational speed of the frame, it may be possible to adjust the direction or the angle at which the material is wound using the relative speed between the rotational axis and the structure.

Here, the bobbins may be arranged in plural along the circumferential direction of the structure to provide the material in multiple directions.

In addition, the frame, the guide groove may be formed along the outer peripheral surface. In this case, the hybrid type continuous pipe manufacturing equipment may further include a driving unit for rotating the frame. Here, the drive unit is inserted into the roller drive source, one side of the guide groove, the rotary roller to rotate the frame by friction with the frame in accordance with the operation of the roller drive source, and is inserted into the other side of the guide groove, It may include a support roller for supporting the rotating state of the frame while rotating by rotating the friction roller during the rotation of the rotating roller.

The driving unit may further include a control unit configured to perform forward or reverse rotation control of the roller driving source and rotation speed control of the roller driving source. In addition, the material may be prepared using glass fibers, carbon fibers or aramid fibers.

According to the hybrid type continuous pipe manufacturing apparatus and the manufacturing equipment using the same according to the present invention, as the transfer band on the molds also moves forward by the pushers while the molds of the collect type are sequentially moved forward by the moving means, The moving means and the pusher can share the forward movement of the pipe forming material with each other, thereby preventing the heavy load acting on the mold and the transfer band, thereby extending the life of parts such as the mold, and the transfer band. Wear and cutting of the joint can be greatly reduced, there is an advantage that can effectively produce high-quality pipe.

1 is a schematic configuration diagram of a hybrid type continuous pipe manufacturing apparatus according to an embodiment of the present invention.
FIG. 2 is a partially enlarged view illustrating a coupling relationship between the cam plate, the cam member, and the molds shown in FIG. 1.
3 is a partial perspective view showing the structure of the molds and the moving means shown in FIG.
4 is a longitudinal sectional view of the pipe manufacturing apparatus taken along the line IV-IV of FIG. 3 to show the internal structure of the pipe manufacturing apparatus.
5 is a cross-sectional view of the pipe manufacturing apparatus taken along the line VV of FIG. 3 to show the internal structure of the pipe manufacturing apparatus.
6 is an explanatory view showing the positions of the molds when the rotating shaft shown in FIG. 1 rotates.
7 is a partial perspective view of FIG. 1.
FIG. 8 is an enlarged perspective view illustrating a mounting structure of the pusher shown in FIG. 7.
9 is a perspective view illustrating a state in which no external force is applied to the pusher shown in FIG. 8.
FIG. 10 is a perspective view illustrating a state in which the pusher shown in FIG. 9 is pressed by applying an external force.
11 is a schematic diagram illustrating a portion of a hybrid type continuous pipe manufacturing apparatus according to another embodiment of the present invention.
12 is a schematic configuration diagram of a hybrid type continuous pipe manufacturing facility using FIG. 1.
13 is a side cross-sectional view of the structure of FIG. 11.
FIG. 14 is a sectional view showing an embodiment of the pipe manufactured by FIG. 11. FIG.

1 to 10 are shown a continuous pipe manufacturing apparatus 100 according to an embodiment of the present invention. Referring to this, the pipe manufacturing apparatus 100 is a drive source (not shown), the rotating shaft 110, the mold 120, the rotating means 115, the moving means 140, the conveying band 129, the first cam Plate 113, pushers 130.

The driving source (not shown) provides a rotational force, and a motor may be used. The rotation shaft 110 rotates by the rotational force of the drive source (not shown). The rotating shaft 110 has a circular cross section and a long shaft shape in the longitudinal axis direction (X-X direction).

1 to 3, six dies 120 are disposed along the circumferential direction of the rotation shaft 110 to surround the circumference of the rotation shaft 110. The molds 120 are arranged along the circumferential direction of the rotation shaft 110 so as to surround the circumference of the rotation shaft 110, and are arranged side by side with respect to the longitudinal axis direction (XX direction) and are formed long in the longitudinal axis direction. . The molds 120 have the same length and the same width and are arranged in close contact with each other to the extent that relative forward and backward movement between the molds 120 adjacent to the longitudinal axis direction (X-X direction) is possible. Thus, the outer surfaces of the mold 120 have a cylindrical structure as a whole. This cylindrical structure facilitates the winding of the transfer band 129 which is spirally wound on the outer circumferential surfaces of the molds 120.

4 and 5, the rotation means 115 rotates the plurality of molds 120 integrally with the rotation shaft 110. The rotating means 115 includes linear bearings 116. The linear bearings 116 smoothly move forward and backward of the molds 120 and simultaneously rotate the molds 120 with the rotation shaft 110. The linear bearings 116 are spaced apart from each other along the longitudinal axis direction (X-X direction) between the mold 120 and the rotation shaft 110.

A groove 128 is formed in the guide portion 127 of each of the molds 120 along the longitudinal axis direction (X-X direction) on an inner surface of the mold 120 that faces the rotation shaft 110. The linear bearing 116 includes a bearing housing 117 and balls 118. The bearing housing 117 is coupled to the rotating shaft 110 to surround the outer circumferential surface of the rotating shaft 110, and rotates together with the rotating shaft 110. The balls 118 are supported by the bearing housing 117 and are arranged to rotate relative and relative linearly within the grooves 128.

Referring to FIG. 2, the moving unit 140 moves the mold 120 back and forth along the longitudinal axis direction (X-X direction). That is, the movement means 140, the plurality of the mold 120 is rotated together with the rotary shaft 110, in accordance with the circumferential arrangement order of the rotary shaft 110, the longitudinal axis of the mold 120 Forward motion is sequentially performed with respect to the direction (XX direction). Thereafter, when the mold 120 performs one rotation of rotation about the longitudinal axis, the moving unit 140 automatically retracts the mold 120 to the original position sequentially.

1 to 3, the moving means 140 includes a cam member 145 and second cam plates 146. The cam member 145 is fixed to the frame 150. The cam member 145 includes a circular tubular cam portion 147a into which the front portion of the rotary shaft 110 is inserted, and the front portion of the rotary shaft 110 is inserted to be rotatable relative to the cam member 145. have.

A closed curved cam surface 148 is formed on the outer surface of the cam portion 147. The cam surface 148 includes a first groove 148a and a second groove 148b. The first groove portion 148a extends from the first position P1 of the outer circumferential surface of the cam portion 147 to the second position P2 in a spiral shape with respect to the longitudinal axis direction (XX direction), and has a groove structure. have. The second groove 148b extends from the second position P2 to be connected to the first position P1 and has a groove structure.

Each of the second cam plates 146 is fixed to the front portion of each of the molds 120. The second cam plate 146 moves forward and backward through the mold 120 while the roller 146a moves along the cam surface 148 when the mold 120 rotates together with the rotation shaft 110. Let's do it. This will be described in more detail as follows. As the roller 146a of the second cam plate 146 is guided along the first groove 148a, the mold 120 to which it is fixed is moved forward. Thereafter, while the roller 146a of the second cam plate 146 is guided along the second groove 148b, the mold 120 to which the second cam plate 146 is fixed is moved backward. As described above, while the rotation shaft 110 is rotated once, the mold 120 performs the forward movement while making one rotation with the rotation shaft 110, and then performs the backward movement to return to the original position again.

FIG. 5 schematically illustrates the position of the six dies 121, 122, 123, 124, 125, and 126 in the longitudinal direction (X-X direction) while the rotation shaft 110 is rotated one time. The first mold 121 is in the original position, the second mold 122 is advanced than the first mold 121, and the third mold 123 is advanced than the second mold 122. The forward position of the fifth mold 125 is the largest, and the sixth mold 126 is in the backward position to return to the original position. This can also be seen from FIG. 6. That is, the second cam plates 146 of the first mold 121 to the fifth mold 125 are positioned to correspond to the first groove 148a and the second cam plate of the sixth mold 126. 146 is positioned to correspond to the second groove 148b.

3 shows the ends of the form 120. As described above, since the deviation of the forward position between the mold 120 occurs, it can be seen that the end of the mold 120 is stepped deviation along the circumferential direction.

Here, the rolling bearing 160 is disposed between the rotating shaft 110 and the mold 120 to prevent sagging of the mold 120. The linear bearings 116 are arranged at equal intervals with respect to the longitudinal axis direction (XX direction), and the rolling bearings are disposed between the rear tooth bearings 135 or at the foremost part or the rearmost part of the mold 120. 160 are installed.

Summarizing the operation using the collect type mold 120 as described above, first, the driving source (not shown) is operated, and the rotating shaft 110 rotates. The mold 120 rotates integrally with the rotation shaft 110 by the rotation of the rotation shaft 110, and the cam plates 146 advance the mold 120 in the longitudinal axis direction (XX direction). Or reverse. While the rotary shaft 110 is rotated once, each mold 120 is advanced and then returned to its original position.

The conveying band 129 is wound helically a plurality of times along the longitudinal direction (hereinafter, referred to as 'A direction') of the molds 120 on the outer circumferential surfaces of the molds 120 movable forward and backward. The transfer band 129 may be formed of various materials such as steel. While the mold 120 is rotated, the pipe forming material provided on the outer circumferential surface is moved forward with respect to the longitudinal axis direction.

Referring to FIG. 1, the transfer band 129 is continuously supplied and spirally wound around the molds 120. The conveying band 129 slides on the outer circumferential surface of the molds 120. Various pipe forming materials may be stacked on the transfer band 129. The pipe forming materials may include various fibers such as glass fibers, synthetic fibers, carbon fibers, and aramid fibers, and fillers such as mortar. However, the present invention is not limited thereto. The pipe forming material may be directly provided to the outer surface, or may be directly provided to the separate member in a state where a separate member is disposed on the outer surface.

The transfer band 129 on the molds 120 also moves forward by the pushers 130 while the molds 120 of the collect type are sequentially moved forward by the moving means 140. That is, according to the present invention, as the mold 120 and the conveying band 129 share the force necessary for the forward movement of the pipe forming material provided on the conveying band 129, the mold 120 And heavy loads that may act on the transfer band 129. According to this, it is possible to prolong the component life of the mold 120 and its components and to significantly reduce the wear of the transfer band 129 and the cutting of the joint, thereby effectively producing high quality pipes.

1 and 4, the first cam plate 113 is disposed in front of the moving unit 140. In addition, the first cam plate 113 is disposed on the outer circumferential surface of the molds 120, is disposed in an inclined state with the longitudinal direction of the molds 120, the molds 120 are inserted to rotate relative The opening 113a to be formed is formed. The first cam plate 113 is fixed in a separate outer frame (not shown). The inclination direction and the degree of inclination of the first cam plate 113 become one of the factors for determining the spiral shape and the A-direction forward speed of the transfer band 129.

Referring to FIG. 7, the pushers 130 are spaced apart from each other in the circumferential direction along the outer circumferential surface of the molds 120 between the first cam plate 113 and the transfer band 129. The pushers 130 are positioned between a portion of the transfer band 129 first wound on the molds 120 and the first cam plate 113. These pushers 130 serve to push the transfer band 129 in the longitudinal direction of the dies 120 so that the transfer band 129 is continuously wound in the spiral form to the dies 120. 1, it should be understood that the pushers 130 between the first cam plate 113 and the transfer band 129 are invisible in angle.

The pushers 130 are spaced apart at substantially equal intervals in the circumferential direction along the outer circumferential surfaces of the molds 120. These pushers 130 are respectively fixed on the mold 120 of all or part of the mold 120. For example, six of the six dies 120 are fixed to all the dies 120 (see FIGS. 7 and 8), or one of six skips intermittently to the three dies 120. Can be.

9 is a perspective view illustrating a state in which no external force is applied to the pusher 130, and FIG. 10 is a perspective view illustrating a state in which the pusher 130 is compressed by applying an external force.

9 and 10, each pusher 130 includes a contact portion 131, a fixing portion 133, and a main body portion 134. The contact part 131 is in direct contact with the first cam plate 113. The contact part 131 includes a bearing 132 which rotates while being in contact with the first cam plate 113 in order to reduce friction with the first cam plate 113. In addition, in order to guide the moving direction of the bearing 132, the first cam plate 113 is formed with a circular guide portion 124 is formed in a circular shape.

The fixing part 133 is fixed on the outer circumferential surface of the mold 120. The through hole 133a is formed in the fixing portion 133 in the A direction. The body portion 134 includes a tube portion 135 and a spring portion 136. One end of the pipe part 135 is fixed to the contact part 131, and the other end is in contact with the side surface of the transfer band 129. The pipe part 135 may be guided into the through hole 133a of the fixing part to move forward or backward in the A direction. That is, as the distance D between the portion of the first cam plate 113 and the fixing portion 133 that the contact portion 131 is in contact with is reduced, the pipe portion 135 is advanced to the transfer band 129. ) In the A direction.

The spring part 136 is disposed between the contact part 131 and the fixing part 133, and the pipe part 135 is inserted therein. The spring portion 136 generates an elastic restoring force in a direction in which the pipe portion 135 is moved backward when the pipe portion 135 moves forward in the A direction. Moreover, as the forward displacement of the pipe part 135 increases, the elastic restoring force becomes large.

Summarizing the operation using the steel band-type feed band 129 as described above, the feed band 129 is continuously supplied to the mold 120 from the outside. The conveying band 129 is recovered from the rear end of the mold 120, and is supplied to the front portion of the mold 120, and the conveying band 129 has a closed circulation structure as a whole. The side of the fed transfer band 129 is in contact with the pusher 130. The first cam plate 113 is formed to be inclined in the A direction, so that the portion between the first cam plate 113 and the fixing part 133 that the contact portion 131 contacts while the mold 120 rotates one rotation. The space | interval D is gradually reduced, and the main-body part 134 advances in A direction. Accordingly, the feed band 129 is pushed in the A direction and wound in a spiral direction on the outer circumferential surface of the mold 120. The maximum reduction interval is substantially equal to the pitch P at which the conveying band 140 is wound spirally. Therefore, the transfer band 129 may be wound in a spiral while the side is in close contact with the outer peripheral surface of the mold (110). When the mold 120 finishes one rotation, the contact portion 131 is restricted in the A direction by the fixing portion 133, and the forward movement of the main body portion 134 also stops. In addition, since the interval D is maximized, the main body 134 is retracted to the original position by the restoring force of the spring 136. Thereafter, while the mold 120 rotates once again, the main body 134 repeats forward and backward.

According to the continuous pipe manufacturing apparatus using the configuration of FIGS. 1 to 10 as described above, while the mold 120 is sequentially moved forward by the moving means 140, the upper portion of the mold 120 The feed band 129 also moves forward. Conventionally, the transfer band 129 is moved forward by only the pushers 130 without a separate auxiliary driving force, and thus, a lot of force is required for the movement of the transfer band 129. On the other hand, in the case of the present invention, the pushers 130 are fixed on the mold 120 moving forward, and the transfer band 129 is pushed by the pushers 130 on the mold 120 moving forward. Since the structure moves forward, as the force required for the forward movement of the transfer band 129 is shared, the forward movement of the transfer band 129 becomes easier, and the stress acting on the transfer band 129 is also reduced, It is possible to solve the problem of wear, damage, cutting, etc. of the portion of the transfer band 129 and its joints. Moreover, according to this, since the transfer band 129 having a thinner thickness may be used, the thickness of the transfer band 129 may be reduced, and thus productivity may be improved.

At this time, with respect to the circumferential direction of the rotary shaft 110, the forward movement of the mold 120 by the moving means 140 and the forward movement of the transfer band 129 by the pushers 130 are mutually To be synchronized. That is, by aligning the forward movement cycle generated during one rotation of the rotary shaft 110 with respect to the mold 120 and the pushers 130, the effects of the present invention described above can be further maximized.

The continuous pipe manufacturing apparatus 100 includes a release film (not shown). The release film (not shown) is disposed between the molds 120 and the transfer band 129 to integrally surround the outer circumferential surfaces of the molds 120. If there is no release film, the pipe forming material is introduced into the gap between the mold 120, the mold 120 may be damaged.

11 is a schematic diagram illustrating a portion of a hybrid type continuous pipe manufacturing apparatus according to another embodiment of the present invention.

In this other embodiment, the configuration of the rotating shaft 110, the molds 120, the rotating means 115, the first cam plate 113, the conveying band 129 is used the same. And, referring to FIG. 11, in this other embodiment, the pushers 130a and the return means 144 are included.

The pushers 130a are fixed on the molds 120 corresponding to the position between the first cam plate 113 and the transfer band 129, and move the molds forward with respect to the longitudinal axis. Together, it serves to push the transfer band 129 in the forward movement direction.

The return means 144 is provided in a circumferential direction on a portion of the first cam plate so that the molds 120 return to their original positions after the mold 120 rotates forward by one rotation about the longitudinal axis. Guide the backward of the mold 120.

Looking at the pushers 130a in detail, the bracket 142, the roller means 143 is provided. The bracket 142 is fixed to the front portion of each mold 120. Here, the pusher 130a is installed on the bracket 142 side, but is not necessarily limited thereto.

The roller means 143 is provided on the upper surface of the bracket 142, and moves along the surface of the first cam plate 113 when the mold 120 rotates together with the rotation shaft 110. do. In this case, since the first cam plate 113 is disposed in an inclined state with the longitudinal direction of the molds 120, the roller means 143 provided in the pusher 130a may be used as the first cam plate ( When moving along the surface of 113, the roller means 143 is pushed by the inclined surface of the first cam plate 113, so that the mold 120 can move forward with respect to the longitudinal axis.

In addition, the roller means 143 is inserted into the return means 144 to guide the reverse of the mold 120 after the first rotation is guided. The cross section of the return means 144 has a '-' shape. Here, an auxiliary plate 144a into which a bolt or the like can be inserted and fastened is provided on the return means 144 so as to adjust a distance between the surface of the first cam plate 113 and the return means 144. This distance adjustment is a portion that is adjusted to correspond to the pitch of the mold 120 for one rotation, that is, the width of the steel band 129. As described above, the backward of the mold 120 is guided according to the configuration of the return means 144, and then the transfer band (through the pusher 130a) is repeatedly carried out while repeatedly moving forward and backward of the mold 120. 129 can be continuously moved forward.

12 to 14 show a manufacturing facility using the hybrid type continuous pipe manufacturing apparatus. The manufacturing facility 200 includes the following structure 230 in addition to the configuration of the hybrid type continuous pipe manufacturing apparatus 100 described above.

The structure 230 includes a frame 231 and a plurality of bobbins 233. The frame 231 is disposed in an annular shape to surround the mold 120. At this time, the inner circumference of the frame 231 having an annular shape has a larger diameter than the outer circumference of the mold 120 so that the inner circumference of the frame 231 and the outer circumference of the mold 120 are spaced apart from each other.

The bobbins 233 are spaced apart from each other and fixed along the circumferential direction of the frame 231, and are provided to provide the pipe forming material 10. In order to smoothly provide the material 10 in the frame 231, the frame 231 does not form an inner circumferential surface, but an inner circumference is completely open, or the frame 231 forms an inner circumferential surface, but the upper circumferential surface is not formed. It is also possible to form a through-hole in which the material 10 is discharged to the outside.

Referring to FIG. 13, the bobbins 233 are arranged in plural along the circumferential direction of the structure 230 to provide the material 10 in multiple directions. According to this, it is possible to increase the pipe thickness and reinforcement by providing a large amount of the material 10 at a time in a short time, and can be adjusted to make the density of the material 10 more uniform with respect to the entire circumferential direction of the pipe.

The structure 230 controls the rotation speed and the rotation direction of the frame 231 to adjust the direction in which the material 10 provided from the bobbins 233 is wound on the mold 120 or the angle at which the frame is wound. As a result, it is possible to manufacture pipes having various types of cross sections, thereby increasing the tensile strength and strength of the pipes.

To this end, referring to FIG. 12, the structure 230 is configured such that two or more layers of a plurality of material layers are formed by being wound in multiple directions in different directions or at different angles with respect to the cross section of the pipe to be manufactured. Plural pieces are installed at intervals set along the longitudinal direction of the 110.

12 illustrates an example in which three structures 230 are installed with respect to the rotation shaft 110 to form three material layers 11, 12, and 13. The wound direction of the first layer 11 by the first structure 230 and the second layer 12 by the second structure 230 are different from each other. The second layer 12 by the second structure 230 and the third layer 13 by the third structure 230 also have different winding directions. Of course, the winding angle is also adjustable for each layer (11, 12, 13).

In addition, the direction in which the material 10 is wound is determined according to the rotation direction of the structure 230 relative to the rotation axis 110, and the angle in which the material 10 is wound is the structure 230 in contrast to the rotation axis 110. Is determined by the speed of rotation. Of course, the + or-value of the velocity value means the forward or reverse rotation of the structure 230, so that the positive or negative value of the velocity of the structure 230 and the winding of the material 10 according to the magnitude of the velocity Direction and angle can be adjusted together.

That is, the manufacturing apparatus 100, by adjusting the rotational direction or rotational speed of the frame 231, by using a relative speed between the rotational speed of the rotary shaft 110 and the rotational speed of the structure 230, It is possible to adjust the direction or angle in which the material 10 is wound. Hereinafter, the principle in which the winding direction or angle of the material 10 is adjusted will be described in detail with reference to FIGS. 13 and 14 and the examples in Table 1. FIG.

Yes
city
Axis of rotation Case A: Material
(Condition: rotating shaft rotation,
Structure stop)
Structure Case B: Material
(Condition: rotating shaft rotation,
Structure rotation)
Rotation speed (rmp1), direction

Speed wound, direction
Rotation speed (rpm2), direction
Winding speed, direction One

+ A, forward

-A, reverse
+ A, forward 0A, stop 2 -A, reverse -2A, reverse 3 0A, stop -A, reverse 4 + 2A, forward A, forward 5 -2A, reverse -3A, reverse 6 + 2A, forward -2A, reverse + A, forward -A, reverse 7 -A, reverse -3A, forward

Here, with respect to condition A, if the rotation direction of the rotation shaft 110 is in the forward direction, it is a common matter that the material 10 wound about the rotation shaft 110 is wound in the opposite direction in the opposite direction. In addition, if the speed value is a positive value, the positive direction is shown; if the speed value is a negative value, the reverse direction is shown.

In case A, only the rotating shaft 110 is rotated at a constant speed and the structure 230 is not rotated at all, which corresponds to the case of a continuous pipe apparatus that does not conventionally use the structure 230. In this conventional case, when the material 10 is wound on the mold 120, it is wound only at a single angle in a single direction, so that the tensile strength, strength, etc. of the pipe with respect to a direction or angle other than the single direction or angle to be wound are inferior. There are disadvantages.

In the case of Example 1, when the rotating shaft 110 rotates by A speed in the forward direction, the material 10 is wound at A speed in the reverse direction. By the way, as the structure 230 rotates by the A speed in the forward direction, the A speed in the forward direction is applied to the material 10 wound at the A speed in the opposite direction to the rotation shaft 110, so that the material 10 is shaped. It is in a state where it is not wound up on the 120 at all. This first case is only an example for explaining the principle of the present invention, and is not actually used during pipe forming.

In the case of Example 2, the rotation shaft 110 is rotated at the A speed in the forward direction, the structure 230 is rotated at the A speed in the reverse direction, the material (10) is wound at the A speed in the reverse direction opposite to the rotation axis 110 In the same direction, the winding speed is accelerated as the A speed is further applied in the same reverse direction, so that the material 10 is wound in the reverse direction at a total speed of 2A.

In the case of Example 3, the rotation shaft 110 is rotated at the A speed in the forward direction, the structure 230 is a conventional case that does not rotate at all, the material 10 is wound at the A speed in the reverse direction.

In the case of Example 4, the rotation shaft 110 is rotated at a speed A in the forward direction, the structure 230 is rotated at a speed of 2A in the forward direction, the material (10) wound in the opposite direction opposite to the rotation axis 110 (10) ) Is again applied in the opposite forward direction by a speed of 2 A, whereby the workpiece 10 is wound in the forward direction at a total A speed.

In the case of Example 5, the rotating shaft 110 is rotated at a speed A in the forward direction, the structure 230 is rotated at a speed of 2A in the reverse direction, the material 10 is wound at the speed A in the reverse direction opposite to the rotating shaft 110 In the same reverse direction, the winding speed is accelerated as the speed is further increased by 2A, so that the material 10 is wound in the reverse direction at a total speed of 3A. In the case of the remaining examples 6 and 7, and also can be inferred based on the above-described example, detailed description thereof will be omitted.

Here, regardless of the direction in which the material 10 is wound, as the speed at which the material 10 is wound increases, the winding angle of the material 10 wound on the mold 120 increases with respect to the same time. (A) of FIG. 14 shows that each of the layers 11a, 12a, and 13a has a wound angle of about 45, and (b) shows that the angles of each of the layers 11b, 12b, and 13b are wound (a). Greater than In particular, in (b), the second layer 12b greatly increases the speed at which the material 10 is wound so that the angle at which the material 10 is wound is nearly 90 degrees.

Based on the above examples, by adjusting the rotational speed and direction of the structure 230 in contrast to the rotation of the rotary shaft 110, the direction in which the material 10 is wound or the angle to be wound can be adjusted freely Able to know. Therefore, for each material layer forming the pipe, it is possible to adjust the winding in different directions or angles for each layer. In addition, according to the adjustment, by varying the direction, the angle is wound for each layer of the pipe to be produced, there is an advantage that can improve the tensile force, strength, reinforcement and the like of the pipe.

Referring to FIG. 12, the pipe produced in the manufacturing facility 200 as described above may be cured by a heater 250 later, and then cut into a length suitable for a user's request through a cutter 260 to have a tubular shape. A product ex, (a) and (b) of FIG. 14, is produced. Of course, the material 10 is resin-treated in advance and then cured. To this end, the material layers forming the pipe are formed by being impregnated and cured in the resin. There are three examples of this approach. First, a method of forming a pipe by providing the material 10 already treated with resin from the bobbin 233. Second, after the resin is applied or sprinkled on the surface of the mold 120, the material 10 is wound on it, and then hardened to form a pipe. Third, a pipe may be formed by applying or sprinkling a resin on the material 10 wound on the mold 120 and curing the resin.

In conclusion, the final manufactured pipe is formed by being impregnated and cured in a resin in a state in which the long fiber material 10 is wound about the circumferential direction of the pipe to be manufactured, and a plurality of material layers are formed for the cross section of the manufactured pipe. Wherein at least two of the material layers are formed by being wound in multiple directions in different directions or at different angles. In this case, as described above, the material 10 may include glass, carbon, or aramid.

12 and 13, the continuous pipe manufacturing facility 200 includes a driving unit 240 for rotating the frame 231. The driving unit 240 includes a roller driving source 241, a rotating roller 242, a support roller 243, and a controller 244.

The roller driving source 241 may use a means such as a motor to provide a rotational force to the rotary roller 242. The roller drive source 241 uses a means such as a belt 245 to provide the rotational force. The rotary roller 242 is inserted into one side of the guide groove 232 formed along the outer circumferential surface of the frame 231, and friction with the frame 231 according to the operation of the roller driving source 241 to the frame 231 Rotate). In addition, the support roller 243 is inserted into the other side of the guide groove 232, and supports the rotation state of the frame 231 while rotating by rotating the friction roller 242 when the rotation roller 242 rotates. . The controller 244 performs forward or reverse rotation control of the roller drive source 241 and rotation speed control of the roller drive source 241. To this end, the controller 244 may be provided with an input unit (not shown) that receives a control signal for the rotation control and the speed control from the user.

Although the present invention has been described with reference to the embodiments shown in the drawings, these are merely exemplary and those skilled in the art will understand that various modifications and equivalent other embodiments are possible. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

100: hybrid continuous pipe manufacturing apparatus
110: rotation shaft 113: first cam plate
113a: opening portion 114: guide portion
115: rotation means 116: linear bearing
117: housing 118: ball
129: transfer band 120: mold
127: guide portion 128: groove
130: pusher 131: contact portion
132: bearing 133: fixed part
133a: through hole 134: main body
135: pipe portion 136: spring portion
140: moving means 145: cam member
146: second cam plate 146a: roller
147: cam portion 148: cam surface
148a: first groove 148b: second groove
150: frame 160: rolling bearing
200: hybrid type continuous pipe manufacturing equipment
230: structure 231: frame
232: Home 233: Bobbin
240: driving unit 241: driving source
242: rotating roller 243: supporting roller
244: control unit 245: belt
250: heater 260: cutter

Claims (12)

A rotating shaft rotating in the longitudinal axis direction by the rotational force of the driving source;
A plurality of molds disposed along the circumferential direction of the rotation shaft to surround the rotation shaft, arranged side by side with respect to the longitudinal axis direction, and formed to extend in the longitudinal axis direction;
Rotating means for rotating the plurality of molds integrally with the rotating shaft;
Moving means for sequentially moving forward the plurality of molds in the longitudinal axis direction, and then sequentially moving them back according to the circumferential arrangement order of the rotation shafts while the plurality of molds rotate together with the rotation shaft;
A feed band continuously supplied to the spirally wound a plurality of times along the longitudinal direction of the molds on the outer circumferential surfaces of the molds, and forwarding the pipe forming material provided on the outer circumferential surface to advance in the longitudinal direction;
A first cam plate disposed on an outer circumferential surface of the molds in front of the moving means, disposed in an inclined state with the longitudinal direction of the molds, and having an opening through which the molds are rotatably inserted; And
Hybrid type continuous pipe manufacturing apparatus including a plurality of pushers spaced apart from each other in the circumferential direction along the outer circumferential surface of the molds between the first cam plate and the transfer band, pushing the transfer band in the longitudinal direction of the molds . A rotating shaft rotating in the longitudinal axis direction by the rotational force of the driving source;
A plurality of molds disposed along the circumferential direction of the rotation shaft to surround the rotation shaft, arranged side by side with respect to the longitudinal axis direction, and formed to extend in the longitudinal axis direction;
Rotating means for rotating the plurality of molds integrally with the rotating shaft;
A first cam plate disposed on an outer circumferential surface of the molds in front of the moving means, disposed in an inclined state with the longitudinal direction of the molds, and having an opening through which the molds are rotatably inserted;
A feed band continuously supplied to the spirally wound a plurality of times along the longitudinal direction of the molds on the outer circumferential surfaces of the molds, and forwarding the pipe forming material provided on the outer circumferential surface to advance in the longitudinal direction;
A plurality of pushers fixed on the molds corresponding between the first cam plate and the transfer band, for advancing the molds with respect to the longitudinal axis, and pushing the transfer bands in the forward movement direction; And
And a return means provided in a circumferential direction on a portion of the first cam plate to return the form back to the original position after the mold moves forward by one rotation with respect to the longitudinal axis. Continuous pipe making equipment. The method according to claim 1,
At the same time as each mold performs one revolution about the longitudinal axis, the moving means automatically returns each mold to its original position.
The moving means,
A cam member fixed to the frame and inserted into the front portion of the rotating shaft so as to be relatively rotatable, and having a closed curved cam surface formed on an outer surface thereof in a circumferential direction; And
A second cam plate fixed to a front portion of each of the molds, the second cam plates moving forward and backward of each of the molds while a part is moved along the cam surface when the mold is rotated,
The cam member includes a circular tubular cam portion into which the front portion of the rotating shaft is inserted,
The cam surface,
A first groove portion extending from the first position to the second position of the outer circumferential surface of the cam portion in a spiral form with respect to the longitudinal axis direction and formed in a groove structure; And
A second groove portion which connects the first position and the second position and is formed in a groove structure;
Each of the second cam plate is guided along the first groove while the forward movement of the corresponding mold, and then guided along the second groove while the continuous pipe manufacturing apparatus for moving back the corresponding mold to the original position. The method according to claim 1,
Each pusher is,
A contact portion in contact with the first cam plate;
A fixing part fixed on an outer circumferential surface of the mold; And
One end is connected to the contact portion, while the other end is guided in the longitudinal direction of the mold by the fixing part while the other end is rotated together with the mold, pushing the conveying band in the longitudinal direction of the mold, and the first rotation When the end is provided with a main body for reversing to the original position by the elastic force,
The main body portion,
A pipe part coupled to the contact part and guided into the through hole of the fixing part to move forward or backward in the longitudinal direction of the mold; And
The tubular part is arranged to be inserted between the contact part and the fixing part, and when the tubular part is advanced in the longitudinal direction of the mold, a hybrid type continuous pipe including a spring part generating elastic restoring force in a direction of reversing the tubular part. Device. The method according to claim 2,
The pusher is,
A bracket fixed to the front portion of each mold; And
And a roller means provided on an upper surface of the bracket, the rollers being inserted along the surface of the first cam plate when the molds rotate together with the rotary shaft, and inserted into the return means to guide the reverse of the molds. Continuous pipe making equipment. The method according to claim 1 or 2,
Hybrid type continuous pipe manufacturing apparatus is synchronized with the forward movement of the mold and the forward movement of the transfer band with respect to the circumferential direction of the rotation axis. The method according to claim 1 or 2,
The pushers are hybrid type continuous pipe manufacturing apparatus is fixed to all or some of the molds, respectively. The method according to claim 1 or 2,
Hybrid type continuous pipe manufacturing apparatus further comprises a release film disposed between the mold and the transfer band so as to integrally wrap the outer peripheral surface of the respective mold. The method according to claim 1 or 2,
The rotating means is disposed between the mold and the rotary shaft spaced apart from each other along the longitudinal axis direction, a plurality of linear to smoothly guide the forward and backward movement of each mold and to rotate the mold integrally with the rotary shaft Including bearings,
Each mold has grooves formed along the longitudinal axis in an inner surface facing the rotation axis.
The linear bearing,
A bearing housing coupled to the rotation shaft so as to surround an outer circumferential surface of the rotation shaft and rotating together with the rotation shaft; And
And a ball supported by the bearing housing and disposed to allow relative rotation and relative linear movement in the groove of each mold along the circumferential direction of the bearing housing. The method according to claim 1 or 2,
Further comprising a rolling bearing disposed between the rotating shaft and the plurality of molds to prevent sagging of the plurality of molds,
The plurality of molds are arranged to be in close contact with each other to the extent that relative forward and backward movement between adjacent molds is possible, and the outer surfaces of the plurality of molds have a cylindrical structure as a whole, and have a hybrid type continuous having the same length and the same width. Pipe manufacturing equipment. Hybrid type continuous pipe manufacturing apparatus of claim 1; And
A frame disposed in an annular shape so as to surround the conveying band, and a plurality of bobbins spaced apart from each other along the circumferential direction of the frame and providing the material, and controlling the rotational speed and the rotational direction of the frame. Hybrid type continuous pipe manufacturing equipment comprising a structure for adjusting the winding direction or the winding angle to the mold. The method of claim 11,
The structure is provided with a plurality of at intervals set along the longitudinal direction of the axis of rotation, so that at least two of the plurality of material layers are formed by winding in different directions or different angles with respect to the cross section of the pipe to be manufactured,
Continuous pipe manufacturing equipment capable of adjusting the direction or angle of the material is wound using the relative speed between the rotating shaft and the structure by adjusting the rotational direction or rotational speed of the frame.

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