KR102051039B1 - Double layer pipe manufacturing device for block insert type - Google Patents

Abstract

The present invention relates to a block-insertable synthetic resin double wall tube manufacturing apparatus which can suppress occurrence of dents and grooves in the cooling and winding processes of a profile, and thereby makes it possible to manufacture a high strength double wall tube. The invention is a block base material extruder, block base material die, block base material sizing unit, block base material cooling unit, block base material take-out and block base material transferred from the block base material take-out extruder block base material to make the reinforcement blocks are manufactured Reinforcing block forming means having a block base material cutter; And a profile extruder having a profile extruder, a profile die, a profile sizing portion, a profile cooling unit, and a profile take-out extruder for extruding the profile into which the reinforcement blocks are inserted into the hollow part. Through the hollow portion of the reinforcing block is inserted in the direction crossing the hollow portion of the profile.

Description

DOUBLE LAYER PIPE MANUFACTURING DEVICE FOR BLOCK INSERT TYPE}

The present invention relates to a block insertion type synthetic resin double wall tube manufacturing apparatus.

Recently, as the need for a large diameter double wall tube having a strong strength has emerged, an attempt has been made to develop a double wall tube made of a flexible and high strength PP (polypropylene) based material such as PE (polyethylene) based.

However, the large-diameter double wall pipe has a problem in that the surface of the profile is distorted in the cooling process when the profile for the double wall pipe is manufactured, and also a groove is generated inside the profile in the profile winding process.

In order to solve this problem, the present applicant discloses a multi-walled tube manufactured using a profile in which reinforcing blocks are inserted along the hollow part in Korean Patent No. 10-1398324.

However, "Korean Patent No. 10-1398324" does not disclose or imply an apparatus for manufacturing a profile in which a reinforcing block is inserted, and thus the inventors of the present application develop an apparatus capable of manufacturing a profile in which a reinforcing block is inserted. As a result, the present invention has been filed.

The present invention is to provide a block-insertable synthetic resin double-walled tube manufacturing apparatus that can suppress the occurrence of dents and grooves in the cooling and winding process of the profile, thereby making a high-strength double-walled tube.

The technical problems to be achieved by the present invention are not limited to the technical problems mentioned above.

In order to achieve the above object, the present invention provides a block-insertable synthetic resin double wall pipe manufacturing apparatus, wherein the double wall pipe manufacturing apparatus includes a block base material extruder, a block base material die, a block base material sizing part, a block base material cooling part, and a block base material for extruding a block base material. Reinforcing block forming means having a take-out machine and a block base material cutter which cuts the block base material transferred from the block base material take-off machine to produce reinforcing blocks; And a profile extruder having a profile extruder, a profile die, a profile sizing portion, a profile cooling unit, and a profile take-out extruder for extruding the profile into which the reinforcement blocks are inserted into the hollow part. This allows the hollow portion of the reinforcing block to be inserted in the direction crossing the hollow portion of the profile.

In addition, the block insertion type synthetic resin double wall tube manufacturing apparatus of the present invention, the hollow block of the reinforcing block reinforcement block supply means for supplying to the profile die side to intersect the hollow portion of the profile is formed; reinforcement block supply means, block base material Reinforcement block supply rails for receiving the reinforcement blocks discharged through the cutter to guide the reinforcement block guide pipe side; Actuator to be supplied by switching the reinforcement blocks guided along the reinforcement block supply rail to the reinforcement block guide pipe side; including, but the reinforcement block supply rail can be connected to the reinforcement block guide pipe at right angles when viewed in plan view.

Specifically, the block base material cutter includes: a moving table disposed on the upper surface of the bed so as to linearly reciprocate along the transfer direction of the block base material; A cutter mounted on the moving table and guided along the moving table to cut the block base material in the width direction so that the reinforcing block is manufactured; And a moving cylinder to move the moving table equipped with the cutter when cutting the block base material at the same speed and direction as the moving speed and the moving direction of the block base material, and to return the moving table equipped with the cutter when the cutting of the block base material is completed. have.

In detail, the upper surface of the bed is mounted with the LM guide extending along the conveying direction of the block base material, the lower surface of the moving table is mounted with the LM bearing slidably fitted to the LM guide, the block on the upper surface of the moving table A first guard and a second guard for guiding the block base material conveyed from the base material take-off is formed, the first guard is formed to extend from the rear end of the moving table facing the block base material take-up to the front side of the moving table, The second guard is formed to extend from the position spaced apart from the extended end of the first guard to the front end of the moving table, and the cutting of the block base material is made while the cutter enters between the extended end of the first guard and the start end of the second guard. The space part may be provided.

Specifically, the cutter cuts the block base material while entering the cutting space by the operation of the cutting cylinder, the cutting cylinder is spaced apart on the upper side of the moving table so that the cutting cylinder rod can be returned after being extended to the cutting space side It is fixed to the upper surface of the support, an extension end of the cutting cylinder rod is mounted with a cutter mounting head to which the cutter is coupled to the front end, the support is supported by guide bars extending vertically on the upper surface of the moving table, cutter mounting Lifting blocks that are slidably fitted to adjacent guide bars may be mounted on both rear ends of the head.

Specifically, a first pressurizing cylinder and a second pressurizing cylinder are disposed on the front end side and the rear end side of the cutter to prevent the flow of the block base material when the block base material is cut, and the first pressurizing cylinder extends the first pressurizing cylinder rod so as to extend the first guard. Pressurizes the block base material guided inward, and the second pressurizing cylinder extends the second pressurizing cylinder rod to pressurize the block base material guided into the second guard, respectively, at the extended ends of the first and second pressurizing cylinder rods, respectively. The first and second pressure plates may be mounted.

Specifically, a through hole may be formed in the moving table facing the cutting space so as to prevent a collision between the cutter and the cutter mounting head descending for cutting the block base material and the moving table.

Specifically, the moving cylinder is disposed on one side of the upper surface of the bed, the moving cylinder rod of the moving cylinder may be connected to the connection bracket extending to the upper surface side of the bed on the lower surface of the moving table.

Specifically, the first guard is provided with a wheel-type rotary encoder for detecting the feed speed, the feed direction and the length of the block base material to enter the inside, and cutting the position of the cutter on the upper surface of the moving table adjacent to the cutting space A first position sensor and a second position sensor can be arranged to enable control of the operation of the cylinder.

Specifically, the interior of the profile die may include a first region into which melt is injected from the profile extruder; A second region in which the profile begins to be molded and into which the reinforcement blocks are inserted through a reinforcement block guide tube; A third region in which the reinforcing blocks are pressed into the hollow portion of the profile which begins to be formed in the second region; And a fourth region extruded while the reinforcing blocks are completely attached to the hollow wall surface of the profile, wherein the third region may be formed such that the width thereof becomes gradually smaller from the rear end side to the front end side.

Specifically, the reinforcement block guide pipe is disposed to extend from the outside of the rear end of the profile die to the second area beyond the first area, and the reinforcement block charger is disposed on the reinforcement block guide pipe exposed to the outside of the profile die. The reinforcing block charging device includes: a first charging belt disposed on an upper side of the reinforcing block induction pipe and supported and rotated by the first and second upper pulleys spaced apart in the longitudinal direction of the reinforcement block induction pipe; A second charging belt disposed on a lower side of the reinforcement block guide pipe and being supported and rotated by the first and second lower pulleys spaced apart in the longitudinal direction of the reinforcement block guide pipe; And a driving motor for transmitting a driving force to the first and second charging belts, wherein the first and second charging belts are guided to the reinforcing block induction pipes facing the first and second charging belts through the reinforcing block induction pipes. Incision holes may be formed, respectively, in contact with the reinforcing blocks to be forced to force the reinforcing blocks into the profile die side.

Specifically, at the extension end of the reinforcing block guide pipe and the reinforcing block supply rail, a separation prevention bump is formed so that the reinforcing block faces the hollow portion of the reinforcing block guide pipe while preventing the reinforcement block guided along the reinforcing block supply rail. Can be.

Specifically, the actuator is a pneumatic cylinder or a hydraulic cylinder for extending and returning the rod, the actuator is mounted on the outside of the side of the reinforcing block supply rail facing the hollow portion of the reinforcement block guide pipe, the actuator is to supply the reinforcement block by extending the rod The reinforcing block guided to the connection portion of the rail and the reinforcing block guide pipe can be supplied to the reinforcing block guide pipe side.

In addition, the actuator is a servo motor for rotating the rotating shaft, the actuator is mounted on the outer side of the lower surface of the reinforcing block supply rail so that the extension end of the rotating shaft is disposed below the connection portion of the reinforcing block supply rail and reinforcing block guide pipe, the extension of the rotating shaft The push bar may be mounted on the end side to supply a reinforcing block guide pipe to the reinforcing block guide pipe side while rotating along the axis of rotation and guided to the connection portion of the reinforcing block supply rail and the reinforcing block guide pipe.

As described above, the present invention can reduce the difference in cooling rate between the outside and inside of the formed profile because the reinforcing blocks cooled to the hollow part of the profile are inserted at the time of profile molding, thereby cooling and winding the profile. There is an advantage in that it is possible to suppress the dents and grooves that occurred in the profile.

1 is a view schematically showing a block-insertable synthetic resin double wall pipe manufacturing apparatus according to the present invention,
Figure 2 is a view showing the reinforcement blocks manufactured by the reinforcing block forming means of Figure 1,
3 is a view showing a block substrate cutting machine shown in FIG.
Figures 4a to 4c is a side view schematically showing the block substrate cutting machine shown in Figure 3, Figure 4a is a view showing the state of the cutter and the first and second pressurized cylinder in the cutting start position, Figure 4b is completed cutting Figure 4 is a view showing the state of the cutter and the first and second pressure cylinder in the position, Figure 4c is a view showing the state of the cutter and the first and second pressure cylinder before returning to the cutting start position after completion of cutting the block base material,
FIG. 5 is a cross-sectional view of the profile die shown in FIG. 1;
6 is a view showing a state in which reinforcing block supply means is disposed between the reinforcing block forming means and the profile forming means shown in FIG.
Figure 7a is a view showing an embodiment of the reinforcing block supply means shown in Figure 6, and
Figure 7b is a view showing another embodiment of the reinforcing block supply means shown in FIG.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the present invention. Like elements in the figures are denoted by the same reference numerals wherever possible. In addition, detailed descriptions of well-known functions and configurations that may unnecessarily obscure the subject matter of the present invention will be omitted.

1 is a view schematically showing a block-insertable synthetic resin double-walled tube manufacturing apparatus according to the present invention, the block-insertable synthetic resin double-walled tube manufacturing apparatus 100 according to the present invention is a block base material (M) that is extruded by reinforcing block ( Reinforcing block forming means 200 for manufacturing B), and profile forming means 300 for producing a profile (P) in which the reinforcing blocks (B) are inserted into the hollow portion.

On the other hand, the profile P manufactured by the block insert-type synthetic resin double wall tube manufacturing apparatus 100 according to the present invention is spirally formed on the outer circumferential surface of a winding drum (not shown) disposed on the front end side of the profile forming means 300. While winding, it is molded into a double wall pipe (not shown).

First, the reinforcing block forming means 200 is a block base material extruder 202, block base material die 206, block base material sizing unit 208, block base material cooling unit 210, block base material take-out 212 and block base material And a cutter 220.

The block base material extruder 202 melts a pellet or compound material made of PE or PP-based resin, which is the material of the reinforcing block B, in a gel state, thereby melting the block base material die 206. Extrude to the side.

That is, the PE or PP series resin is introduced into a heating cylinder (not shown) disposed inside the block base extruder 202 through the hopper 204 of the block base extruder 202 and is heated by a heater (not shown). It is melted and simultaneously extruded toward the block base die 206 by the rotation of a screw (not shown).

The block base die 206 is disposed at the front end side of the block base extruder 202 so that the gel melt extruded from the block base extruder 202 is extruded into the block base M having a predetermined shape. do.

The block base material M is continuously extruded from the block base die 206 to have the same cross-sectional shape as that of the reinforcing blocks B shown in FIG. 2.

Here, the block base material extruder 202 is a conventional extruding machine, and the detailed description of the block base material extruder 202 is omitted in the present invention, and similarly, the block base material extruder 202 is used to block the cross-sectional shape shown in FIG. Since the structure of the block base material die 206 which causes the base material M to be extruded is a well-known technique, detailed description is abbreviate | omitted.

The block base material sizing part 208 is disposed on the front end side of the block base material die 206 as shown, and the block base material cooling part 210 is disposed on the front end side of the block base material sizing part 208.

As the block base material sizing unit 208 can be known by anyone, the block base material (M) is molded to the exact dimensions and the planned shape before the block base material (M) extruded from the block base material die 206 is completely cooled, The cooling unit 210 completely cools the block base material M that has passed through the block base material sizing part 208 as anyone can understand.

The block base material sizing unit 208 and the block base material cooling unit 210 are well-known techniques, and in the present invention, the configuration of the block base material sizing unit 208 and the block base material cooling unit 210 is not particularly limited. The detailed description is also omitted.

The block base material taker 212 is disposed on the front side of the block base material cooling unit 210 and pulls the block base material M through the block base material cooling unit 210 with a constant force to pull the block base material M. Transfer to the cutter 220 side.

Block base material taker 212 arranges a conventional orbital take-off, ie, interlocking prime and driven sprockets (not shown), or prime and driven pulleys (not shown) in a vertically stacked form, each of which By winding a plurality of tracked track chains or belts to rotate the block base material (M) is pulled out between these upper and lower parts.

Here, although an example of the block base material take-out 212 has been described, it will be appreciated by anyone that the block base material take-out 212 is not limited to the above configuration. That is, if the block base material M can be pulled and transferred to the block base material cutter 220 side, the block base material taker 212 may have any form.

Meanwhile, the block base material cutter 220 cuts the block base material M transferred from the block base material taker 212 to a predetermined length so that the reinforcing block B is manufactured, but is extruded to the block base material M. Block base material (M) is cut so that the process does not stop.

That is, the block base material cutter 220 cuts the block base material M into a predetermined length while moving along the block base material M transferred from the block base material taker 212.

Hereinafter, the block base material cutter 220 will be described in more detail with reference to FIGS. 3 to 4C.

The block base material cutter 220 includes a moving table 222, a cutter 234 mounted on the moving table 222, and a moving cylinder 256 for moving the moving table 222 on which the cutter 234 is mounted. do.

In addition, the control unit 268 for controlling the block base material cutter 220 as a whole further includes.

First, the moving table 222 is disposed on the upper surface of the bed 224 to enable a linear reciprocating motion along the transport direction of the block base material (M).

At this time, the L guide 226 extending along the conveying direction of the block base material (M) is mounted on the upper surface of the bed 224, it is slidably fitted to the L guide 226 on the lower surface of the moving table (222). The bearing L bearing 227 is mounted.

On the other hand, on the upper surface of the moving table 222, the first guard 228 and the second guard 230 for guiding the block base material M transferred from the block base material take-out 212 is formed.

The first guard 228 and the second guard 230 are each formed of two wall portions facing each other and extending along the conveying direction of the block base material M. The first guard 228 is a block base material taker 212. ) Extends from the rear end of the moving table 222 to the front side of the moving table 222, and the second guard 230 is moved from the position spaced apart from the extended end of the first guard 228. It is formed to extend to the front end of.

At this time, between the extended end of the spaced first guard 228 and the start end of the second guard 230 is provided with a cutting space 232 for cutting the block base material (M) while the cutter 234 enters and exits. do.

That is, the moving table 222 reciprocates between the cutting start position and the cutting completion position along the LM guide 226 by the operation of the moving cylinder 256, and the block base material being conveyed from the block base material take-off machine 212 ( M) is conveyed along the inner side of the first guard 228 and the second guard 230. After the cutting of the block base material M is completed, the reinforcing blocks B cut by the cutter 234 are discharged into the second guard 230.

The cutter 234 is provided in a vertical plate shape and is mounted on the moving table 222 to cut the block base material M in the width direction. That is, the cutter 234 is disposed so that the blade portion 236 of the cutter 234 perpendicularly crosses the transfer direction of the block base material M in a plan view.

In addition, the blade portion 236 of the cutter 234 is disposed diagonally when the block base material cutter 220 is viewed from the front side so as to reduce the cutting resistance when cutting the block base material (M).

The cutter 234 disposed as described above cuts the block base material M while entering and exiting the cutting space 232 by the operation of the cutting cylinder 238 as shown, and the cutting cylinder 238 is a cutting cylinder rod 239. ) Is fixed to the upper surface of the supporter 240 spaced apart from the upper side of the moving table 222 so that it can be returned after being extended to the cutting space portion 232 side. In addition, the cutter mounting head 242 to which the cutter 234 is coupled to the front end is mounted at the extended end of the cutting cylinder rod 239.

In addition, the support 240 to which the cutting cylinder 238 is fixed may include guide bars 244 extending vertically on the upper surface of the moving table 222 so as not to interfere with the first guard 228 and the second guard 230. It is supported by, at this time, both sides of the rear end of the cutter mounting head 242 is mounted to the lifting block 246, which is slidably fitted to the adjacent guide bar 244.

That is, the cutter 234 cuts the block base material M while moving along the movement table 222 from the cutting start position to the cutting completion position, and then returns to the cutting start position again along the movement table 222. When the block base material M is cut, the cutting cylinder 238 extends the cutting cylinder rod 239 to lower the cutter 234, and the cutter 234 lowered by the cutting cylinder 238 is cut. The block base material M is cut while being inserted into the space 232.

On the contrary, when the cutting of the block base material M is completed, the cutting cylinder 238 returns the cutting cylinder rod 239 to raise the cutter 234, whereby the cutter 234 is withdrawn from the cutting space 232. Is returned.

Meanwhile, first and second pressurizing cylinders 248a and 248b for preventing the flow of the block base material M when cutting the block base material M are disposed on the front and rear ends of the cutter 234.

The first pressurizing cylinder 248a extends the first pressurizing cylinder rod 250a to pressurize the block base material M guided into the first guard 228. Similarly, the second pressurizing cylinder 248b pressurizes the second pressurizing cylinder. The cylinder rod 250b is extended to press the block base material M guided into the second guard 230.

To this end, the first pressurizing cylinder 248a and the second pressurizing cylinder 248b are respectively formed by the first guard 228 and the subframes formed so as not to interfere with the first guard 228 and the second guard 230. It is disposed on the upper side of the second guard 230, the first end of the first pressure plate (250a) and the second end of the pressurizing cylinder rod (250b) of the first pressing plate (252a) and the second pressing plate ( 252b) is mounted.

The first pressurizing cylinder 248a and the second pressurizing cylinder 248b thus disposed are the first pressurizing cylinder rod 250a and the second pressurizing cylinder while the block base material M is being cut, that is, from the cutting position to the cutting completion position. The rod 250b is extended to press the block base material M guided into the first guard 228 and the second guard 230 to prevent the flow of the block base material M, and the cutting of the block base material M is completed. At the same time, upon returning to the cutting start position, the first pressurizing cylinder 248a and the second pressurizing cylinder 248b return the first pressurizing cylinder rod 250a and the second pressurizing cylinder rod 250b to block the base material M and Release the pressure on the reinforcement block (B).

Here, since the reinforcing block B is formed inside the second guard 230 at the same time as the cutting of the block base material M, the second pressurizing cylinder 248b releases the pressure on the reinforcing block B when the cutting is completed.

And as shown in the moving table 222 facing the cutting space 232, the cutter 234 and the cutter mounting head 242 and the collision with the moving table 222 descending for cutting the block base material (M) Through hole 254 is formed to prevent the.

The moving cylinder 256 linearly reciprocates the moving table 222 along the LM guide 226 mounted on the upper surface of the bed 224. That is, the moving cylinder 256 repeatedly moves the moving table 222 and the cutter 234 mounted on the moving table 222 to the cutting start position and the cutting completion position.

The moving cylinder 256 is disposed on one side of the upper surface of the bed 224 so as not to interfere with the moving table 222 as shown, the moving cylinder rod 258 of the moving cylinder 256 is the moving table 222 Is connected to a connection bracket 260 extending toward the top side of the bed 224 on the bottom side of the bed.

On the other hand, the first guard 228 is disposed a conventional wheel type rotary encoder 262 for detecting the feed speed, the feed direction and the length of the block base material (M) to enter the inside of the first guard (228). The wheel-type rotary encoder 262 disposed as described above is supported by a support bar (not shown) extending from the rear end side of the bed 224 so that the wheel 264 contacts the block base material M.

The wheel type rotary encoder 262 outputs a detection value such as a feed speed, a feeding direction and a length of the block base material M entering the first guard 228 as a signal to the controller 268 and the controller 268. Activates the moving cylinder 256 based on the detected value of the wheel type rotary encoder 262.

That is, the control unit 268 moves the cutter 234 mounted on the movement table 222 and the movement table 222 at the cutting start position and the cutting completion position at the same speed as the feed speed of the block base material M. Operating the moving cylinder 256 to be moved to the cutting start position, as anyone can know the cutting length of the reinforcing block (B) by the speed detected by the rotary encoder 262 can be adjusted.

The first position sensor 263a and the second position sensor 263b for detecting the position of the cutter 234 are disposed on the upper surface of the moving table 222 adjacent to the cutting space 232. The first position sensor 263a and the second position sensor 263b are mounted on the upper and lower sides of the fixing bracket 264 extending vertically on the upper surface of the moving table 222.

The first position sensor 263a mounted on the fixing bracket 264 restricts the rise of the cutter 234, and the second position sensor 263b limits the lowering of the cutter 234. When the contact bar 266 protruding to one side of the c) is detected by the first position sensor 263a, the first position sensor 263a outputs a signal to the controller 268 and the controller 268 controls the cutter 234. Stops the operation of the cutting cylinder 238 so that it cannot rise any more and simultaneously operates the moving cylinder 256 so that the moving table 222 and the cutter 234 mounted on the moving table 222 return to the cutting start position. .

When the cutter 234 mounted on the movement table 222 and the movement table 222 is returned to the cutting start position, the control unit 268 controls the movement table 222 and the cutter 234 mounted on the movement table 222. First cylinder 248a to actuate the moving cylinder 256 to move the cutting finished position and press the block base material M guided into the first guard 228 and the second guard 230. And operating the second pressurizing cylinder 248b and simultaneously operating the cutting cylinder 238 to allow the cutter 234 to cut the block base material M. FIG.

On the contrary, when the contact bar 266 is detected by the second position sensor 263b, the second position sensor 263b outputs a signal to the controller 268 and the controller 268 prevents the cutter 234 from descending any more. The cutting cylinder 238 is operated to stop the operation of the cutting cylinder 238 and simultaneously raise the cutter 234. Then, the first pressurizing cylinder 248a and the second pressurizing cylinder 248b are operated to release the pressurization on the block base material M and the reinforcing block B.

By the operation of the block base material cutter 220, the block base material M transferred from the block base material taker 212 is cut into the reinforcement block B, and the reinforcement blocks B are second guards 230. Through the block base material cutter 220 is discharged to the outside.

Referring again to FIG. 1, the profile shaping means 300 includes a profile extruder 302, a profile die 306, a profile sizing 308, a profile cooling unit 310, and a profile taker 312.

The profile extruder 302 melts a pellet or compound material made of PE or PP-based resin, which is a material of the profile P, in a gel state and extrudes the profile die 306. .

That is, the PE or PP series resin is introduced into a heating cylinder (not shown) disposed inside the profile extruder 302 through the hopper 304 of the profile extruder 302 and melted by a heater (not shown). At the same time it is extruded toward the profile die 306 by rotation of a screw (not shown).

Here, the profile extruder 302 is a conventional extruding machine, and the detailed description of the profile extruder 302 is omitted in the present invention.

The profile die 306 is disposed on the front end side of the profile extruder 302 so that the gel melt extruded from the profile extruder 302 is extruded into a predetermined shape, that is, a rectangular tubular profile P. Extrude, but extrude the profile (P) so that the reinforcing block (B) is inserted into the hollow portion.

FIG. 5 is a cross-sectional view illustrating the profile die shown in FIG. 1, wherein the profile die 306 has a first region S1, a second region S2, a third region S3, and a third region formed from the rear end to the front side. It is provided divided into four areas S4.

The profile die 306 further includes a reinforcement block guide tube 320 for guiding the reinforcement blocks B manufactured by the reinforcement block forming means 200 into the profile die 306.

Here, the reinforcement block guide pipe 320 is disposed to extend from the outside of the rear end of the profile die 306 to the second area S2 through the first area S1.

First, the first region S1 of the profile die 306 is a section into which the PE or PP series melt is injected from the profile extruder 302, and the second region S2 is a section where the profile P starts to be molded. to be.

At this time, the reinforcing block (B) is charged through the reinforcing block guide pipe 320 into the second region (S2), the reinforcing block (B) is the hollow portion begins to be molded in the second region (S2) It is loaded to intersect with the hollow part of the profile P.

Here, the reinforcing block (B) is charged through a manual operation of the operator, or charged through a reinforcing block aligner (not shown) for aligning the hollow portion of the profile (P) to be extruded hollow portion of the reinforcement block (B). Can be.

In addition, the third region S3 of the profile die 306 is a section in which the reinforcing blocks B are pressed into the hollow portion of the profile P, which begins to be formed in the second region S2, and the third region S3 is As shown in the drawing, the width thereof is gradually reduced from the rear end side of the third region S3 to the front side of the third region S3.

That is, since the profile P, which starts to be molded in the second region S2, is not cured, the reinforcement blocks B charged through the reinforcement block guide pipe 320 are formed while passing through the third region S3. It is attached to the wall surface of the hollow part of the profile P which follows.

The fourth region S4 of the profile die 306 is a section in which the reinforcing blocks B are extruded while being completely attached to the hollow wall of the profile P. FIG.

Meanwhile, on the reinforcement block guide pipe 320 exposed to the outside of the profile die 306, the reinforcement block B is contacted with the reinforcement blocks B guided along the reinforcement block guide pipe 320. The reinforcing block charging machine 330 for forcibly charging is disposed.

The reinforcing block charger 330 includes first and second charging belts 332a and 332b and a driving motor 342 for transmitting driving force to the first and second charging belts 332a and 332b.

The first charging belt 332a is disposed on the upper side of the reinforcement block guide pipe 320 as shown, and the first and second upper pulleys 334a spaced apart in the longitudinal direction of the reinforcement block guide pipe 320. Supported by 336a and rotated.

And the second charging belt 332b is disposed on the lower side of the reinforcement block guide pipe 320, the first and second lower pulleys 334b, 336b spaced apart in the longitudinal direction of the reinforcement block guide pipe 320. Supported and rotates.

Thus, the first and second upper pulleys 334a and 336a, and the first and second charging belts 332a and 332b that are supported and rotated by the first and second lower pulleys 334b and 336b, respectively, are reinforcing block guide tubes. In contact with the reinforcing blocks (B) guided along the 320, for this purpose, the reinforcing block guide pipes 320 facing the first and second charging belts 332a and 332b, respectively, incision holes 338a and 338b. Is formed.

That is, the first and second charging belts 332a and 332b are in contact with the reinforcing blocks B through adjacent cut holes 338a and 338b, and the first and second charging belts 332a and 332b are in contact with each other. The reinforcement blocks B are forcibly loaded into the profile die 306 by the rotational force of the first and second charging belts 332a and 332b.

At this time, the guide rail 340 (see FIG. 7A) is guided to the hollow wall of the reinforcement block guide pipe 320 so that the reinforcing block B loaded along the reinforcement block guide pipe 320 can be loaded smoothly. It is formed along the longitudinal direction of the tube (320).

On the other hand, the driving motor 342 is fixedly mounted so as not to interfere with each other in the frame 344 on which the first and second upper pulleys 334a and 336a and the first and second lower pulleys 334b and 336b are rotatably supported. do.

The drive shaft 346 of the drive motor 342 is connected to the first upper pulley 334a through a conventional coupling. The driving force of the first upper pulley 334a is transmitted to the first lower pulley 334b facing each other. For this purpose, the first upper pulley 334a is equipped with a first transmission gear 348a and the first lower pulley 334b. ) Is equipped with a second transmission gear 348b meshing with the first transmission gear 348a.

That is, since the first upper pulley 334a is directly connected to the driving motor 342 and the first lower pulley 334b is connected to the first upper pulley 334a to transmit the driving force, the first and second charging belts 332a are provided. , 332b forcibly loads the reinforcing block B into the profile die 306 in cooperation with each other.

Referring again to FIG. 1, the profile sizing portion 308 is disposed on the front side of the profile die 306 as shown, and the profile cooling portion 310 is disposed on the front side of the profile sizing portion 308.

The profile sizing portion 308 allows the profile P to be molded into the correct dimensions and the planned shape before the profile P extruded from the profile die 306 is completely cooled, as will be appreciated by anyone, and the profile cooling portion 310 As will be appreciated by anyone, the profile P passed through the profile sizing unit 308 is completely cooled.

The profile sizing unit 308 and the profile cooling unit 310 are known in the art, and in the present invention, the configuration of the profile sizing unit 308 and the profile cooling unit 310 is not particularly limited, and detailed description thereof is also omitted. do.

The profile taker 312 is disposed at the front end side of the profile cooling unit 310 to pull the profile P passed through the profile cooling unit 310 with a constant force.

The profile taker 312 may be provided with the same conventional orbital drawer 212 described above, namely, interlocking prime and driven sprockets (not shown), or prime and driven pulleys (not shown). They are arranged in a vertical stack, and a plurality of tracked track chains or belts are wound around each of them so as to pull out the profile P between these upper and lower portions.

Here, although an example of the profile taker 312 has been described, it will be appreciated by anyone that the profile taker 312 is not limited to the above configuration. That is, the profile taker 312 may have any shape as long as the profile P can be pulled and transferred with a constant force.

On the other hand, the block insert-type synthetic resin double wall tube manufacturing apparatus 100 according to the present invention, as shown in Figure 6, the reinforcing block (B) manufactured in the reinforcing block forming means 200 automatically supply to the profile die 306 side However, the hollow portion of the reinforcing block (B) may further include a reinforcing block supply means (400) for supplying to cross the hollow portion of the profile (P) to be molded.

Reinforcement block supply means 400 is shown in Figures 3, 7A and 7B, the reinforcement block is received by receiving the reinforcement block (B) discharged through the second guard 230 of the block base material cutter 220 Reinforcement block supply rail 410 to guide the guide pipe 320 side, and the reinforcing block (B) guided along the reinforcing block supply rail 410 to the actuator to change the direction to the reinforcement block guide pipe 320 side supply 420a, 420b; actuators.

Here, the reinforcing block supply rail 410 is connected at right angles to the reinforcing block induction pipe 320 when viewed in plan so that the hollow portion of the reinforcing block (B) is supplied to cross the hollow portion of the profile (P) to be molded, reinforcement The reinforcing block B is a reinforcing block guide pipe while preventing the separation of the reinforcing block B guided along the reinforcing block supply rail 410 at the extended end of the block guide pipe 320 and the reinforcing block supply rail 410. Departure preventing jaw (412) facing the hollow portion of 320 is formed.

On the other hand, the actuator (420a, 420b) is mounted on one side of the reinforcement block supply rail 410 facing the hollow portion of the reinforcement block guide pipe 320 of the reinforcement block supply rail 410 and reinforcement block guide pipe 320 The reinforcing block (B) supplied to the connection portion is pushed to be supplied to the reinforcement block guide pipe (320) side.

Such actuators 420a and 420b may be conventional pneumatic or hydraulic cylinders as shown in FIG. 7A, and may also be conventional servomotors as shown in FIG. 7B.

That is, as shown in FIG. 7A, when the actuator 420a is a pneumatic or hydraulic cylinder for extending and returning the rod 422a, the actuator 420a supplies a reinforcing block facing the hollow portion of the reinforcing block guide pipe 320. Mounted outside the side of the rail 410, the actuator 420a is mounted so as to extend the rod 422a into the connection portion of the reinforcing block supply rail 410 and the reinforcing block guide pipe 320 to the reinforcing block supply rail Reinforcing block (B) guided to the connection portion of the 410 and the reinforcement block guide pipe 320 is supplied to the reinforcement block guide pipe 320 one by one.

At this time, on the side of the reinforcing block supply rail 410 facing the hollow portion of the reinforcing block induction pipe 320, an entrance hole 424a through which the rod 422a enters and exits.

In addition, as shown in FIG. 7B, when the actuator 420b is a servo motor that rotates the rotation shaft 422b, the actuator 420b has an extension end of the rotation shaft 422b for the reinforcement block supply rail 410 and the reinforcement block induction. It is mounted to the outside of the lower surface of the reinforcing block supply rail 410 to be disposed below the connecting portion of the pipe 320, the push bar 424b is mounted on the extension end side of the rotation shaft 422b, the actuator 420b thus mounted Rotate the push bar 424b into the connection portion of the reinforcement block supply rail 410 and the reinforcement block guide pipe 320 is guided to the connection portion of the reinforcement block supply rail 410 and the reinforcement block guide pipe 320. Reinforcing block (B) is supplied to the reinforcement block guide pipe 320 side by one.

At this time, the cut bar 426b through which the push bar 424b enters and exits is formed on the reinforcement block supply rail 410 connected to the reinforcement block guide pipe 320.

The block-insertable synthetic resin double wall tube manufacturing apparatus 100 according to the present invention formed as described above is formed outside the profile P formed because the reinforcing blocks B are inserted into the hollow part of the profile P when the profile P is formed. It is possible to reduce the difference in the internal cooling rate, thereby making it possible to suppress the crushing and groove generation of the profile P in the cooling process and the winding process of the profile P.

The block-insertable synthetic resin double wall tube manufacturing apparatus 100 as described above is not limited to the configuration and operation of the embodiments described above. The above embodiments may be configured such that various modifications may be made by selectively combining all or part of the embodiments.

100: Block inserting synthetic resin double wall pipe manufacturing device
200: reinforcing block molding means 202: block base material extruder
206: block substrate die 208: block substrate sizing unit
210: block base material cooling unit 212: block base material take-out
220: block base material cutter 300: profile forming means
302: profile extruder 306: profile die
308: profile sizing unit 310: profile cooling unit
312: profile intake 320: reinforcement block guide tube
330: reinforcing block charging machine 400: reinforcing block supply means

Claims (14)

In the block insert type synthetic resin double wall pipe manufacturing apparatus,
The double wall pipe manufacturing apparatus,
Block base material extruder, block base material die, block base material sizing unit, block base material cooling unit, block base material take-out extruder and cutting the block base material transferred from the block base material take-out to make reinforcement blocks Reinforcing block forming means having a block base material cutter; And
And a profile extruder for extruding the profile into which the reinforcing blocks are inserted into the hollow part, a profile die, a profile sizing unit, a profile cooling unit, and a profile forming unit having a profile taker.
The hollow part of the reinforcing block is inserted into the profile die in a direction crossing the hollow part of the profile through a reinforcing block guide pipe.
The inside of the profile die,
A first region into which melt is injected from said profile extruder;
A second region in which the profile begins to be molded and into which the reinforcement blocks are inserted through the reinforcement block guide tube;
A third region in which the reinforcing blocks are pressed into the hollow portion of the profile which begins to be molded in the second region; And
And a fourth region extruded while the reinforcement blocks are completely attached to the hollow wall of the profile.
The third region is formed such that its width gradually decreases from the rear end side to the front side side,
The reinforcing block guide pipe is disposed to extend from the outside of the rear end of the profile die to the second area beyond the first area,
A reinforcing block charger is disposed on the reinforcing block guide pipe exposed to the outside of the profile die.
The reinforcing block charger,
A first charging belt disposed on an upper side of the reinforcement block guide pipe and supported and rotated by first and second upper pulleys spaced apart in the longitudinal direction of the reinforcement block guide pipe;
A second charging belt disposed at a lower side of the reinforcement block guide pipe and supported and rotated by the first and second lower pulleys spaced apart in the longitudinal direction of the reinforcement block guide pipe; And
Includes; drive motor for transmitting a driving force to the first and second charging belt,
The reinforcement block guide pipe facing the first and second charge belts has the first and second charge belts in contact with the reinforcement blocks which are guided through the reinforcement block guide pipes and move the reinforcement blocks toward the profile die. Block-insertable synthetic resin double-walled tube manufacturing apparatus is formed in each of the incision hole to enable forced charging.
The method according to claim 1,
The double wall pipe manufacturing apparatus,
Reinforcing block supply means for supplying to the side of the profile die to cross the hollow portion of the profile in which the hollow portion of the reinforcement block is formed;
The reinforcing block supply means,
A reinforcement block supply rail receiving the reinforcement blocks discharged through the block base cutting machine and guiding them to the reinforcement block induction pipe side;
And an actuator configured to supply the reinforcement blocks guided along the reinforcement block supply rail by supplying the reinforcement blocks by changing the direction to the reinforcement block induction pipe side.
The reinforcement block supply rail is a block-insertable synthetic resin double wall pipe manufacturing apparatus connected to the reinforcement block induction pipe at a right angle when viewed in a plane.
The method according to claim 1,
The block base material cutter,
A moving table disposed on the upper surface of the bed so as to linearly reciprocate along the conveying direction of the block base material;
A cutter mounted on the moving table to guide the reinforcing block by cutting the block base material in the width direction while being guided along the moving table; And
A movement to move the moving table on which the cutter is mounted at the same speed and direction as the moving speed and the moving direction of the block base material, and to return the moving table on which the cutter is mounted when the cutting of the block base material is completed; Block insert-type synthetic resin double wall manufacturing apparatus comprising a cylinder.
The method according to claim 3,
On the upper surface of the bed is mounted an Elm guide extending in the direction of transportation of the block base material, on the lower surface of the moving table is mounted an Elm bearing slidably fitted to the Elm guide,
On the upper surface of the moving table is formed a first guard and a second guard for guiding the block base material conveyed from the block base material taker,
The first guard is formed to extend from the rear end of the moving table facing the block base material taker to the front side of the moving table, and the second guard of the moving table is spaced apart from the extended end of the first guard. Is formed to extend to the shear,
Block insertion type synthetic resin double wall tube manufacturing apparatus is provided between the extended end of the first guard and the start end of the second guard is provided with a cutting space for cutting the block base material while entering the cutter.
The method according to claim 4,
The cutter cuts the block base material while entering the cutting space by the operation of the cutting cylinder,
The cutting cylinder is fixed to the upper surface of the support spaced apart on the upper side of the moving table so that the cutting cylinder rod can be returned after being extended to the cutting space side, the extension end of the cutting cylinder rod on the front end side Equipped with a cutter mounting head to which the cutter is coupled,
The support is supported by guide bars extending vertically on the upper surface of the movable table, block insert type synthetic resin double wall manufacturing apparatus is mounted on both sides of the rear end of the cutter mounting head is mounted with a lifting block slidably fitted to the adjacent guide bar. .
The method according to claim 4,
First and second pressurizing cylinders are disposed on the front and rear ends of the cutter to prevent the flow of the block base material when the block base material is cut.
The first pressurizing cylinder extends a first pressurizing cylinder rod to press the block base material guided into the first guard, and the second pressurizing cylinder extends a second pressurizing cylinder rod to guide the inside of the second guard. Pressurizing the block base material,
Block inserting type synthetic resin double wall tube manufacturing apparatus is provided with the first and second pressure plate at the extended end of the first and second pressure cylinder rod, respectively.
The method according to claim 5,
And a through hole formed in the moving table facing the cutting space so as to prevent a collision between the cutter descending for cutting the block base material and the cutter mounting head and the moving table.
The method according to claim 4,
The moving cylinder is disposed on one side of the upper surface of the bed,
The moving cylinder rod of the moving cylinder is a block insert type synthetic resin double wall tube manufacturing apparatus connected to the connection bracket extending from the lower surface of the moving table toward the upper surface side of the bed.
The method according to claim 5,
The first guard is provided with a wheel type rotary encoder for detecting the feed speed, the feed direction and the length of the block base material entering inwards,
Block insert type synthetic resin double wall tube manufacturing apparatus is disposed on the upper surface of the moving table adjacent to the cutting space portion to detect the position of the cutter to control the operation of the cutting cylinder and the second position sensor .
delete delete The method according to claim 2,
An extension end of the reinforcing block induction pipe and the reinforcing block supply rail connected to the reinforcement block is provided to face the hollow portion of the reinforcing block induction pipe while preventing the separation of the reinforcing block guided along the reinforcing block supply rail. Block inserting type synthetic resin double wall tube manufacturing apparatus is formed.
The method according to claim 2,
The actuator is,
Pneumatic cylinder or hydraulic cylinder for extending and returning the rod,
The actuator is mounted on the side outside of the reinforcing block supply rail facing the hollow portion of the reinforcing block induction pipe, the actuator extends the rod to guide the connection portion of the reinforcing block supply rail and the reinforcing block induction pipe. Block inserting type synthetic resin double wall pipe manufacturing apparatus for supplying the reinforcement block to the reinforcement block induction pipe side.
The method according to claim 2,
The actuator is,
Servo motor to rotate the rotating shaft,
The actuator is mounted on the outer side of the lower surface of the reinforcing block supply rail so that the extended end of the rotating shaft is disposed below the connection portion of the reinforcing block supply rail and the reinforcing block induction pipe,
Block insert type synthetic resin double wall pipe is mounted on the extension end side of the rotary shaft is provided with a push bar for supplying the reinforcing block guide rail and the reinforcing block guide pipe connected to the reinforcing block guide pipe side while rotating along the rotary shaft. Manufacturing equipment.

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