TWI633992B - Plastic line manufacturing method with repeated shaping and manufacturing equipment thereof - Google Patents

Abstract

A method for manufacturing a plastic line with repeated shaping, in order to produce a plastic line manufacturing method capable of repeating cold shape changing line shape and a manufacturing device thereof, in the process of forming a thermoplastic shape, the upper and lower surfaces of the embryo are carried, The reverse twists and turns are repeated by pulling the wheel to force the surface of the embryonic band to be drawn and squeezed, and the heat is softened and pulled to eliminate the stress and reorder the molecular chain, and refine the cross-sectional area of the embryo band. The mechanical force of the finished product can be used to shape the shape of the line in a cold shape at a normal temperature and can be repeatedly changed.

Description

Plastic line manufacturing method with repeated shaping and manufacturing equipment thereof

The invention provides a plastic line for producing a wire body which can be cold-shaped at room temperature, can be operated by a hand or bend, and can be repeatedly operated to change the shape of the line.

Regarding the application of plastic lines, there are often plastic straps (tie straps) that bundle a plurality of wires, which have strong pulling force, but the shape cannot be shaped by hand. Another common plastic strap for attaching hardware parts or stationery is common in transformers. After the wires are rounded back and forth in a bundle, the radial direction of the wires is bound by a plastic tie strip tied by a dry, hand-operated bundle. The plastic line structure is provided with a metal strip inside, and the periphery is covered with a soft plastic. After shaping, the shape is shaped, or if used in the lateral part of the nose bridge of the mask, there is a mask strip which can be shaped by hand pressing, so that the inner side of the upper edge of the mask can be attached to the curve of the nasal cheek surface. The bead is the same as the outer part is covered by plastic, and the inside is provided with a metal strip, which can be shaped by using the metal strip to provide shape change, but the plastic strip is metal-composited, and must be subjected to core-breaking operation after recycling. It is not easy, and it is necessary to accurately cover the wire during production. The precision must be precisely controlled, the process cost is high, and the wire is electrically conductive, which is inconvenient to use in the case of electric power.

A method for manufacturing a plastic line with repeated shaping, in order to make a plastic line manufacturing method and a production device thereof, which can be bent at a normal temperature and cold-shaped, can be operated by a hand or a two-wire, and can repeatedly operate and change the shape of the line. In the manufacturing process, the upper and lower surfaces of the initially completed embryo belt are reversed and twisted several times in order to force the surface of the embryonic band to be squeezed and drawn, and then subjected to multiple thermal softening to eliminate stress, and then The ordering molecular chain is oriented, and the cross-sectional area of the embryonic strip is refined, so that the mechanical force of the final forming of the finished product can be applied by hand to the cold-shaped operation to change the shape, and the plastic line for replacing the wire tie strip or the mask bead is provided. the main purpose.

A further object of the present invention is to prepare an extrusion machine, a first returning device, a first heating device, a second returning device, a second heating device, a third returning device, and a winding machine. Wherein the winding machine is in the direction of the third returning device, and a fourth pulling force is generated during operation; wherein the third returning device is in the direction of the second returning device, and a third pulling force is generated during operation; wherein the second pulling force is generated; The returning device is in the direction of the first returning device, and generates a second pulling force during operation; wherein the first returning device is in the direction of the extrusion machine, and a first pulling force is generated during operation; and the pulling force of the fourth pulling force is sequentially Value>Third Tension>Second Pulling Force>First Pulling Force, and First Pulling Force, Second Pulling Force, Third Pulling Force and Fourth Pulling Force are respectively generated by the power of the machine, so that the tension and heat deformation are performed before and after the production line. , in the order of the molecular chain.

A third object of the present invention is to perform a hanging hot extrusion operation, a first meandering operation, a first thermal deformation operation, a second meandering operation, a second thermal deformation operation, and a third meandering operation by using the device. The thermoplastic polymer is obtained, and the shaped plastic material can be shaped by hand to form an embryonic strip, and the embryonic strip of the strip undergoes multiple tortuous operations and softening, and finally the molecular arrangement can be obtained. And slender plastic lines, using multiple pull operations and hot ductility, It can be smoothly stretched between 5 and 20 times its length.

A fourth object of the present invention is that the third zigzag operation of the system produces a third pulling force for the second zigzag operation, the second zigzag operation produces a second pulling force for the first zigzag operation, and the third pulling force > the second pulling force causes the machining to be processed. In the production line, the embryonic band is obviously pulled by the latter machine, and the fineness and the molecular displacement structure are changed.

A fifth object of the present invention is that the embryonic band extruded by the hanging hot extrusion operation has a hot melt density around the cross-sectional shape larger than the inside to increase the hot ductility of the body required for heating.

A sixth object of the present invention is to perform a first steering wheel, a second steering wheel, a third steering wheel, and a fourth steering wheel that are repeatedly bent, and the rotational surface speed thereof is gradually increased by the first steering wheel. The fourth steering wheel is the biggest.

A seventh object of the present invention is to provide a device for repeatedly bending, wherein the surface of the exporting wheel provided at the outlet end is operated faster than the leading wheel of the input end, so that the inside of the machine can pull the working effect on the material belt.

An eighth object of the present invention is to provide a first heating device for performing a hot-melt operation, wherein the electric heating elements provided inside are different in temperature depending on the length of the front and rear lengths of the tunnel, and the power of the electric heating element is adjustable.

1‧‧‧Polymeric plastic materials

100‧‧‧Plastic lines

10‧‧‧ embryo belt

11‧‧‧ Sandwich layer

2‧‧‧Hanging hot extrusion operation

21‧‧‧Hot melt head

20‧‧‧Extrusion machine

210‧‧‧Extrusion hole

211‧‧‧ Short side

212‧‧‧Long side

22‧‧‧Cooling trough

3‧‧‧First zigzag operation

30‧‧‧First return device

301‧‧‧Introduction wheel

31‧‧‧First steering wheel

32‧‧‧Second steering wheel

33‧‧‧ Third steering wheel

34‧‧‧fourth steering wheel

302‧‧‧Exporting wheel

4‧‧‧First thermal deformation operation

40‧‧‧First heating unit

41‧‧‧hot tunnel

42‧‧‧Electrical components

5‧‧‧second zigzag operation

50‧‧‧second return device

51‧‧‧First steering wheel

52‧‧‧Second steering wheel

53‧‧‧ Third steering wheel

54‧‧‧fourth steering wheel

501‧‧‧Introduction wheel

502‧‧‧Export wheel

6‧‧‧Second thermal deformation operation

60‧‧‧second heating device

61‧‧‧hot tunnel

62‧‧‧Electrical components

70‧‧‧ third return device

71‧‧‧First steering wheel

72‧‧‧Second steering wheel

73‧‧‧ Third steering wheel

74‧‧‧fourth steering wheel

7‧‧‧ Third zigzag operation

701‧‧‧Introduction wheel

702‧‧‧Export wheel

F‧‧‧掣拉力

F0‧‧‧hanging force

F1‧‧‧First pull

F2‧‧‧Second pull

F3‧‧‧ Third pull

F4‧‧‧ fourth pull

8‧‧‧Complete operation

80‧‧‧Winding machine

81‧‧‧Winding轵

800‧‧‧ drive shaft

C1‧‧‧Overcurvature

C2‧‧‧ inverse curvature

L0‧‧‧ intermediate curve

L1‧‧‧ Pulling arc length

L2‧‧‧Squeezing arc length

L3‧‧‧ Pulling arc length

L4‧‧‧Squeezing arc length

Figure 1 is a simplified view of the production equipment and workflow of the present invention.

Figure 2 is a bottom view of the extrusion machine of the present invention.

Fig. 3 is a schematic view showing the change of the curvature of the upper and lower sides of the embryo belt of the present invention.

Fig. 4 is a schematic view showing the steps of the preformed section of the present invention being subjected to a thermoformed drawing.

For the production method and production equipment of the present invention, please refer to the following description. First, please refer to FIG. 1 first:

1. Applying a complete extrusion machine 20, a first returning device 30, a first heating device 40, a second returning device 50, a second heating device 60, a third returning device 70, a winder 80, wherein the winder 80 is in the direction of the third returning device 70, and a fourth pulling force F4 is generated during operation, and the third returning device 70 is in the direction of the second returning device 50. A third pulling force F3 is generated, and the second returning device 50 is in the direction of the first returning device 30, and a second pulling force F2 is generated during operation. The first returning device 30 is in the direction of the extrusion machine 20, and will be in operation. A first pulling force F1 is generated, and the sequential pulling force is a fourth pulling force F4>the third pulling force F3>the second pulling force F2>the first pulling force F1.

Second, the selection of thermoplastic, plastic shape of the plastic material 1 can be repeatedly shaped by hand;

3. Performing the forming step: 1. Hanging the hot extrusion type operation 2, after the hot plastic material 1 is melted by the extrusion machine 20, and hot extrusion in a hanging direction to form an embryonic band 10, the embryonic band 10 During the production process, if the tape is in a normal state, the embryo tape 10 is hung down and cooled by a cooling groove 22, and then turned to the outer side by the first pulling force F1; 2. a first zigzag operation 3 And welcoming the embryo belt 10 proposed in the first step, and being pulled into the first returning device 30 by the second pulling force F2, and repeatedly bending the upper and lower sides of the incoming embryo belt 10; 3 a first thermal deformation operation 4, a first heating device 40 is provided, and the embryonic band 10 completed in the above step is brought in by the second pulling force F2, and the embryonic band 10 is thermally changed. Shape, the embryonic band 10 is softened and subjected to tensile force, and finally the recombinant embryonic band 10 plastic molecules are discharged and refine the cross section; 4, a second zigzag operation 5, welcoming the embryonic band 10 of the refinement section of the above steps, subject to The third pulling force F3 is pulled into the interior of a second returning device 50, and the second and second sides of the incoming embryo belt 10 are subjected to a second multi-pass reversal bending; 5. A second thermal deformation operation 6 The embryonic band 10 completed in the above step is brought into the interior of a second heating device 60 by the third pulling force F3, and the second hot deformation and softening operation is performed on the embryonic band 10, so that the embryonic band 10 is finally Further refining and reducing the cross-section and the direction of the reforming molecules; 6. A third zigzag operation 7 welcoming the embryo belt 10 completed in the above step, and being pulled into the third returning device 70 by the fourth pulling force F4. On the upper and lower sides of the incoming embryo belt 10, the third multi-pass reverse bending is finally formed to form the plastic line 100 outward; 7. A complete collection operation 8 is provided with a winder 80, a volume The completed plastic line 100 is wound around the 81.

The polymeric plastic material 1 selected therein is thermoplastic, and after forming, the shape can be handled by hand, and the shape can be cold-shaped, such as PE polyethylene or PP polypropylene having a lower density.

The prepared polymeric plastic material 1 enters a hanging hot extrusion operation 2, which is heated in a hot melt manner by a squeeze machine 20, heated by a hot melt head 21, and finally cooled by the set. The groove 22 is vertically downward through the back pressure and the extrusion direction, and the vertical downward direction of the embryo belt 10 is soft, and is cooled and shaped into a cooling tank 22, and the cooling tank 22 can utilize the water liquid and the surface of the embryo belt 10 entering. Yu Wenjin Shape heat exchange, the cooling trough 22 further provides the incoming embryo belt 10 after turning and turning away from the cooling water, and is raised by a first pulling force F1 to the laterally outward direction, and the raised embryonic band 10 still has a thermal temperature for later supply. After the hot forming operation is required, the embryo belt 10 is extruded downward from the hot melt head 21 to form a strip shape, and a self-weight effect is generated to generate a hanging force F0, which can be maintained by the cooling tank 22 The body of the belt is suspended, and the shape of the body is not changed by external force.

Referring to FIG. 2, the extrusion hole 210 provided in the extrusion machine 20 is a rectangular hole, and the ratio of the long side 212 to the short side 211 is greater than 3:1.

The first pulling force F1 is generated by the first returning device 30 applied by the first meandering operation 3, and is generated after the embryo belt 10 is connected. The inlet end of the first returning device 30 is provided with an introduction wheel 301, which is arranged inside and below. There are a first steering wheel 31, a second steering wheel 32, a third steering wheel 33, and a fourth steering wheel 34. The outlet end is provided with an exporting wheel 302. After the incoming embryo belt 10 first bypasses the introduction wheel 301, Climbing over the upper surface of the first steering wheel 31, bypassing the lower surface of the second steering wheel 32, and climbing up the upper surface of the third steering wheel 33, and then bypassing The lower surface of the fourth steering wheel 34 is finally bypassed by the take-up wheel 302 and carried out horizontally.

The first pulling force F1 is pulled by the power of the first returning device 30, and the first steering wheel 31, the second steering wheel 32, and the third steering wheel 33 provided by the first returning device 30 are The fourth steering wheel 34 and the introduction wheel 301 and the extension wheel 302 are staggered in parallel in the horizontal and horizontal directions, and the rotation direction of the first steering wheel 31, the third steering wheel 33, and the extension wheel 302 and the introduction wheel 301 are arranged. The second steering wheel 32 and the fourth steering wheel 34 are opposite, but the surface speed thereof may be equal in principle, or may be reached by the introduction wheel 301 to the exporting wheel 302, and each rotation rate is incremented, so that during the process of increasing and decreasing, The forward and backward pulling force is applied to the bypassed embryonic band 10 line segment, and wherein the traction rate of the first returning device 30 is greater than the feeding rate of the extruder 20.

The first returning device 30 system provides the frictional force that occurs after the embryonic band 10 enters the winding transition, that is, the incoming embryonic band 10 begins to be bent, and the bending is to bend the upper and lower surfaces of the embryonic band 10. operating.

The above-mentioned reverse bending (please match the figure shown in Fig. 3), the embryo belt 10 is repeatedly bent, and the bending arc length L1 is greater than the compression arc length L2 when the bending degree C1 is excessive, and the tension is formed on the surface of the arc length L1. The surface length of the arcuate length L2 is formed to be squeezed, so that the plastic molecular structure located on the upper and lower surfaces of the embryonic band 10 is repelled or squeezed in the embryonic band 10, and is formed by being torn or squeezed. The reverse cornering of the inverse curvature C2 after the curvature C1 is the length of the reverse curvature C2, the length of the pulling arc length L3, the surface area of the embryonic band 10 is organized, and the length of the extrusion arc length L4 is In the range, the surface structure of the embryonic band 10 is torn apart, and the plastic molecules located in the L0 portion of the middle curve are less obvious to be changed by the external force, and during the process of pulling the corner, there is still a tensile force F, which is The pulling force F is the second pulling force F2 of the same effect. In addition to the provision of the germplasm 10, the tensile force F can also lengthen the length of the body of the embryonic band 10.

Referring back to FIG. 1 , after the embryo tape 10 completed by the hanging hot extrusion operation 2 is operated via the first meandering operation 3, a program of a first thermal deformation operation 4 is entered, the first thermal deformation operation. 4 is a first heating device 40. The first heating device 40 is provided with a long-distance hot tunnel 41. The hot tunnel 41 has a plurality of sets of electric heating elements 42 arranged inside and behind, and the electric heating element 42 generates heat radiation waves. The heat radiation wave can be generated by the electric heating mode. According to the change of the working temperature requirement of the front and rear lengths of the hot tunnel 41, the heating power of each group of the electric heating elements 42 is adjustable, and the incoming embryo belt 10 is successively added in order. Warm, or declining heating.

The second pulling force F2 is used to pull the embryo belt 10 through the hot tunnel 41. During the process, the section of the germ strip 10 is reduced in cross section due to the pulling force (please cooperate with FIG. 4), and the hanging hot extrusion operation 2 Extruded The embryonic band 10, whose structure of the polymeric plastic material 1 is squeezed, receives a large hot melt effect on the polymeric plastic material 1 on the outer surface of the embryonic band 10, and the body and the material of the sandwich layer 11 have different shapes. The change, the embryo belt 10 completed by the hanging hot extrusion operation 2 is driven by the pulling force F (second pulling force F2) in the direction of the first thermal deformation operation 4, and the first thermal deformation operation 4 is subjected to the second tensile force F2 again. The force is pulled by the process, and the embryonic band 10 is softened by the warming action of the heat radiation, first acting on the surface of the embryonic band 10, and the thermal mass is further transferred from the surface of the embryonic band 10 to the portion of the sandwich layer 11 Therefore, the degree of hot melt of the polymeric plastic material 1 located on the surface of the embryonic band 10 is rapidly deformed to be larger than the portion of the sandwich layer 11, and the stress subjected to the first meandering operation 3 and the tensile force via the second pulling force F2 are eliminated. The molecular chains of the polymeric plastic material 1 are arranged in a linear order.

Referring back to FIG. 1, the embryo tape 10 completed by the first thermal deformation operation 4 enters a second meandering operation 5, which is provided by a second returning device 50 to greet the above. The finished embryo belt 10 is provided with an introduction wheel 501 at the input end of the second returning device 50, an exporting wheel 502 at the output end, a first steering wheel 51, a second steering wheel 52, and a third steering. The pulling wheel 53 and the fourth steering wheel 54 have the same working mode as the first returning device 30, and the source of the second pulling force F2, that is, the maneuvering energy of the second returning device 50, is transmitted to The embryonic band 10 in the production line occurs, and after the second pulling force F2 has passed through the first heating device 40, it acts on the output end of the first returning device 30.

The second returning device 50 also performs a meandering operation on the incoming embryonic band 10 as shown in Fig. 3, changing the surface structure into the embryonic band 10, and again causing the surface of the embryonic band 10 completed by the first thermal deformation operation 4 to be thickened. Press to change the surface molecular gap.

The embryonic band 10 outputted by the second returning device 50 enters a second thermal deformation operation 6, and the second thermal deformation operation 6 utilizes the heat inside the second heating device 60 as the tunnel 61, and the heat radiation wave also occurs. With the secondary hot melt softening of the incoming embryonic band 10, the force entering the hot tunnel 61 is subject to a third The action of the pulling force F3 and the hot tunnel 61 are the same as the long track shape, and the heat generating power generated by the electric heating element 62 is adjustable according to different temperature requirements, and the overall working property is as the first heating device 40. Working in a manner to thermally fuse the passed embryonic band 10 and to extend the length of the embryonic band 10 by the action of the third pulling force F3, and to eliminate the stress generated by the internal meandering operation of the second returning device 50, and again The polymer columns of the embryonic band 10 are aligned to be linearly reordered.

The embryo belt 10 which completes the operation of the hot tunnel 61 enters a third meandering operation 7, which utilizes a third returning device 70, the input end is provided with an introduction wheel 701, and the output end is provided with an exporting wheel 702, the inside Similarly, the first steering wheel 71, the second steering wheel 72, the third steering wheel 73, and the fourth steering wheel 74 are provided, and the overall device, such as the first returning device 30, operates in the same manner to enter. The embryo belt 10 is operated as shown in Fig. 3, and a third degree of bending operation is performed. Finally, a plastic line 100 is completed. The plastic line 100 is finally subjected to a retracting operation 8 and the retracting operation 8 is performed by a winder 80. The drive shaft 800 is provided with a rolling driving force to drive a winding 轵 81, and the winding 轵 81 surface provides the winding of the incoming plastic line 100 to be wound up, and can be cut into segments after the winding. shape.

In the above working path, the third pulling force F3 generated by the third returning device 70 of the force generating end or the second pulling force F2 generated by the second returning device 50 of the generating end acts on the second heating device 60 and the first The inside of a heating device 40 is used to pull the embryo tape 10 passing through the second heating device 60 and the first heating device 40, and the tensile force is distributed in the case of the embryonic band 10, which is the distance according to the length of the band of the embryonic band 10. In addition to the gravity consumption of the belt, the tension is distributed in the belt body and is deviated away from the occurrence end of the third returning device 70 and the second returning device 50, and the magnitude of the pulling force also changes the embryo belt 10 to work. The forward speed of the run in the system.

This change in speed also changes the speed at which the embryonic band 10 progressively increases from the input end introduction wheel 301 of the first returning device 30 to the surface of the third returning device 70 to the surface carrying wheel 702. Up to 20 times, the speed of 20 times can also be compared with the change of the cross-section of the embryonic band 10 after the embryo belt 10 enters from the first returning device 30 and reaches the output of the third returning device 70, and the amount of change can be implemented. Up to 5 to 20 times.

According to the hot melt temperature requirement of the polymeric plastic material 1, the embryo tape 10 formed by the operation of the hanging hot extrusion operation 2 enters the first meandering operation 3, and is subjected to the first thermal deformation operation 4 for the subsequent first hot melt softening. And the second thermal deformation operation 6 is used for the second hot melt softening, and the required temperature is about 90 to 180 ° C, and the driving rate of the third returning device 70 can reach 1.5 to 3 meters per minute, the above temperature and The driving speed is adjustable according to the property requirements of the polymeric plastic material 1.

The present invention provides a plastic strip material 100 having a shape that can be cold-formed and formed into a rod-shaped plastic line 100 through a plurality of zigzag operations and multiple heat deformation pulling operations, the plastic line 100 providing hands-free operation. It can be changed into a shape, suitable for the bead of the mask, or the plastic tie strip which is often tied with the wire. After use, it can be recycled and reused due to its thermoplasticity, which provides full maintenance benefits for the environment, and is essentially caused by multiple thermoplastic shapes. The molecular structure is evenly distributed, and a high tensile strength can be obtained. After most bending, the structure can be shaped by freehand shaping, and in addition to the aforementioned applications, it can be applied to retail objects, or hardware. The packaging of the pieces is entangled, and it is an innovative method of construction and manufacturing. Please ask your examiner Mingjian and give the patent as an early prayer.

Claims (13)

The invention relates to a method for manufacturing a plastic line with repeated shaping, which comprises the following steps: a method for manufacturing a plastic line with a line body capable of being subjected to a dry operation or a two-line cross-winding at a normal temperature, and repeating the shape of the cold-shaped shape change, comprising: , a first returning device; a first returning device; a first heating device; a second returning device; a second heating device; a third returning device; a winder; The third returning direction of the device generates a fourth pulling force during operation; the third returning device is in the direction of the second returning device, and generates a third pulling force during operation; the second returning device is in the first backward direction The direction of the device generates a second pulling force during operation; the first returning device generates a first pulling force in the direction of the extrusion machine; the sequential pulling force is the fourth pulling force>the third pulling force>the second Pulling force>first pulling force; second, selecting a thermoplastic material which can be shaped by hand and can be shaped by hand; 3. forming step: a hanging hot extrusion operation, the polymeric material is heated by the extrusion machine Hot-squeezing in the direction of sag after melting Forming an embryonic band, the embryonic band is cold-shaped and bent after being cooled by a cooling groove, and is raised by the first pulling force to the lateral direction; a first zigzag operation greets the embryo band proposed in the above step, and is subjected to the second pull Pulling into a first returning device, the first returning device performs multiple reverse bending on the upper and lower sides of the incoming embryo belt, and a first thermal deformation operation is provided with a first heating device. The second pulling force brings the embryonic band completed in the above step, and thermally deforms the embryonic band and eliminates the residual residual stress, and the embryonic band is softened and pulled forward to finally refine the cross section; a second zigzag operation, The embryonic band welcoming the refinement section of the above step is pulled into a second returning device by the third pulling force, and the second returning device is inserted into the upper and lower sides of the embryonic banding device for a second time. a second thermal deformation operation, the embryonic band completed by the above step is brought into the interior of a second heating device by the third pulling force, and the embryonic band is subjected to a second thermal deformation and softening. The stress-relieving operation causes the embryonic band to finally refine and reduce its cross-section; a third tortuous operation greets the embryonic band completed in the above step, and is pulled by the fourth pulling force into a third returning device, and enters Embryo band up and down Surface, and then repeatedly bends a third multi-channel pull out the final forming of plastic line made; a full closing operation, is provided with a winding machine, via a wound retractor Zhi completion of the above-described plastic lines. The method for manufacturing a plastic line with repeated shaping according to the first aspect of the patent application, wherein the working force of the second pulling force and the third pulling force is the largest end of the generated end, and the length of the length of the stretched embryo belt is With weight loss to reduce away from the occurrence of the end. The method for manufacturing a plastic line with repeated shaping according to the first aspect of the patent application, wherein the first returning device, the second returning device, and the third returning device have respective inlet and outlet ends in and out of the inner embryo band The pulling force is greater for the output than the input. The method for manufacturing a plastic line with repeated shaping according to the first aspect of the patent application, wherein the first heat deformation operation and the second heat deformation operation are separately heated by a heat radiation wave, and the heating power thereof is adjustable. The method for manufacturing a plastic line with repeated shaping as described in claim 1, wherein the embryo tape produced by the hanging hot extrusion operation has a degree of hot melt around the cross section greater than the inside. The method for manufacturing a plastic line with repeated shaping according to the first aspect of the patent application, wherein the plastic line drawn is cut into segments. The utility model relates to a plastic line manufacturing device with repeated shaping, which is for preparing a plastic line manufacturing device which can be used for dry-type bending or two-line cross-winding at the normal temperature, and can repeat the shape of the cold-shaped changing line shape, including: Extrusion machine; a first returning device; a first heating device; a second returning device; a second heating device; a third returning device; a winder; In the direction of the device, a fourth pulling force is generated during operation; the third returning device is in the direction of the second returning device, and a third pulling force is generated during operation; the second returning device is in the direction of the first returning device, A second pulling force is generated during work; the first returning device is in the direction of the extruder, and a first pulling force is generated during operation; The sequential pull values are the fourth pull force > the third pull force > the second pull force > the first pull force. The plastic line manufacturing device with repeated shape as described in claim 7 wherein the extrusion type hole of the extrusion machine is a rectangular hole, and the ratio of the long side to the short side is greater than 3. :1. The re-shaping plastic line manufacturing device according to claim 7, wherein the winding speed of the winder is greater than the third returning device, and the traction working speed of the third returning device is greater than the second returning device. The traction operation rate of the second returning device is greater than the first returning device. The re-shaping plastic line manufacturing device according to claim 7, wherein the traction rate of the first returning device is greater than the feeding rate of the extruder. The re-shaping plastic line manufacturing device according to claim 7, wherein the first returning device, the second returning device, and the third returning device are respectively arranged in parallel shafts, and the first introducing wheel The individual rotational speeds of a steering wheel, a second steering wheel, a third steering wheel, a fourth steering wheel, and an export wheel are incremented from the induction wheel to the delivery wheel. The re-shaping plastic line manufacturing device according to claim 7, wherein the first heating device and the second heating device respectively have a straight groove-shaped hot tunnel, and an electric heating element is arranged inside and outside to generate heat. Radiation wave. For example, the plastic line manufacturing equipment with repeated shaping described in claim 12, wherein the electric heating elements distributed in the interior and the inside of the hot tunnel can be adjusted according to the heat demand of the tunnel before and after the heat.