KR102346092B1 - Manufacturing apparatus for handrail - Google Patents

Abstract

The present invention relates to a handrail manufacturing apparatus including: a nonwoven fabric supply unit including a drum having an outer periphery around which a nonwoven fabric is wound, and a support for rotatably supporting the drum; a transfer unit configured to transfer the nonwoven fabric wound around the nonwoven fabric supply unit forward, and including upper and lower pressure rollers arranged in a vertical direction, and a driving motor for driving one of the upper and lower pressure rollers; an extrusion unit disposed between the nonwoven fabric supply unit and the transfer unit, and configured to extrude a synthetic resin to the nonwoven fabric transferred forward by the transfer unit; a wire supply unit installed on a rear side of the extrusion unit to supply a wire to the extrusion unit; and a cooling unit disposed between the extrusion unit and the transfer unit and configured to cool an extruded product molded by the extrusion unit. The present invention relates to a handrail manufacturing apparatus, a nonwoven fabric, a wire, and a synthetic resin are integrated with each other in a process of continuously extruding the synthetic resin, so that a working time is shortened so as to improve productivity.

Description

Handrail manufacturing apparatus {Manufacturing apparatus for handrail}

The present invention relates to a handrail manufacturing apparatus for manufacturing a handrail applied to an escalator or the like.

In general, a handrail applied as a handle to an escalator or the like is to be moved together with a person, so it is a trend that is being developed to be strong and usable for a long time for safety.

As an example, in the prior art Laid-Open Patent Publication No. 10-2018-0018768, there is a method of extruding an article of a uniform cross section, the article comprising a thermoplastic material and at least one cable for suppressing elongation of the article, the method supplying at least one cable to each at least one tube, the tube comprising an upstream end and a downstream end, a length extending between the upstream end and the downstream end, and internal dimensions; conveying through the tube between and A method is disclosed, comprising cooling and solidifying the extrudate, wherein at least one of a length and an internal dimension of the tube is selected to at least impede movement of a loose winding of a cable from a downstream end to an upstream end of the tube.

However, the conventional techniques have problems in that the extrusion operation is complicated, the production speed is slow, and the lifespan of the handrail is short because the quality is not good.

Republic of Korea, Patent Registration No. 10-2247291 Republic of Korea, Patent Registration No. 10-1571996

The present invention has been devised to solve this problem, and an object of the present invention is to provide a handrail manufacturing apparatus in which the productivity is improved because the nonwoven fabric, the wire and the synthetic resin are integrated in the process of continuously extruding the synthetic resin.

The present invention includes an apparatus for manufacturing a handrail, comprising a drum having a nonwoven fabric wound on an outer periphery thereof, a nonwoven fabric supply unit including a support for rotatably supporting the drum, and transferring the nonwoven fabric wound on the nonwoven fabric supply unit forward For this purpose, an upper pressure roller and a lower pressure roller which are arranged vertically to each other, and a transfer unit including a driving motor for driving any one of the upper pressure roller and the lower pressure roller, and the nonwoven fabric supply unit and the transfer unit, An extrusion unit for extruding a synthetic resin to the nonwoven fabric transferred forward by the conveying unit, a wire supply unit installed at the rear of the extruding unit to supply a wire to the extruding unit, and disposed between the extruding unit and the conveying unit, the extruding unit It is characterized in that it comprises a cooling unit for cooling the molded extrudate.

In addition, the extrusion unit has a primary upper mold communicating with the heating chamber, a primary lower mold disposed below the primary upper mold and elevating and lowering by an elevating driving unit, the primary upper mold and the primary lower mold A primary mold including a first cavity formed in the interspace, wherein a molten resin is first injected in a state in which a nonwoven fabric is inserted into the first cavity to extrude the primary extrudate, and a secondary in communication with the heating chamber An upper mold, a secondary lower mold disposed under the secondary upper mold and raised and lowered by an elevating driving unit, and a second cavity formed in a space between the secondary upper mold and the secondary lower mold, After the primary extrudate and the wire are inserted into the second cavity, the molten resin is injected secondary, and it characterized in that it comprises a secondary mold for extrusion molding the secondary extrudate.

In addition, a guide part is mounted on the rear end of the primary mold to be transferred to the primary mold with both edges of the nonwoven fabric formed in the lower inner direction,

The guide part includes a plate-shaped base plate disposed at the rear end of the primary mold, a jig mounted long along the direction in which the nonwoven fabric is transported on the upper surface of the base plate, and the base plate installed on both sides of the jig It is characterized in that it comprises a plurality of guide rollers arranged to guide the non-woven fabric is seated in the correct position of the jig.

The present invention relates to a handrail manufacturing apparatus, and since the nonwoven fabric, the wire and the synthetic resin are integrated in the process of continuously extruding the synthetic resin, the working time is shortened and the productivity is improved.

In addition, since the process of manufacturing a handrail is automated by the handrail manufacturing apparatus of the present invention, the handrail manufactured by the present invention has large rigidity and toughness, and has good quality, resulting in fewer defects and improved lifespan. there is

1 is a plan schematic view showing the layout of a handrail manufacturing apparatus according to the present invention.
2 is a photograph of a dehumidifying unit according to the present invention.
3 is a side view of the extruded part according to the present invention.
4 is a front view of the extrusion part on which the primary mold according to the present invention is mounted.
5 is a cross-sectional view of a handrail manufactured according to the present invention.
6 is an exploded perspective view of the primary and secondary molds according to the present invention.
7 is a cross-sectional view of the primary mold according to the present invention.
8 is a cross-sectional view of the secondary mold according to the present invention.
9 is a photograph of a wire supply unit according to the present invention.
10 is a photograph of the transfer unit according to the present invention.
11 is a photograph of a cooling unit according to the present invention.
12 is an enlarged photograph of the cooling die of the cooling unit according to the present invention.
13 is a photograph of the first guide member of the cooling unit according to the present invention.
14 is a photograph of the second guide member of the cooling unit according to the present invention.
15 is a photograph of the finished product transfer unit according to the present invention.
16 is a photograph of the inspection unit according to the present invention.

Hereinafter, the technical idea of the present invention will be described in more detail with reference to the accompanying drawings.

Since the accompanying drawings are only examples shown to explain the technical idea of the present invention in more detail, the technical idea of the present invention is not limited to the form of the accompanying drawings.

1 is a plan schematic view showing the layout of a handrail manufacturing apparatus according to the present invention.

1, the handrail manufacturing apparatus 1000 according to the present invention includes a dehumidifying unit 100, an extrusion unit 200, a nonwoven fabric supply unit 300, a wire supply unit 400, a transfer unit 500, It includes a cooling unit 600 , an inspection unit 700 , a cutting unit 800 , and a finished product transfer unit 900 .

The handrail manufactured by the handrail manufacturing apparatus according to the present invention is extruded from a synthetic resin, and a plurality of wires (metal cables) and a nonwoven fabric are provided in a long embedded form along the longitudinal direction of the handrail.

In this case, the wires are formed to be spaced apart from each other at regular intervals on the upper side of the nonwoven fabric.

Here, the nonwoven fabric is a fabric made of a PP material formed long in the longitudinal direction of the handrail, and the wire is a metal cable in a state in which a steel wire is twisted, but the materials of the handrail, the nonwoven fabric and the wire are not limited to the present invention.

Hereinafter, for clarity of explanation, the handrail manufacturing apparatus 1000 will be described with a direction in which the handrail is extruded and manufactured is forward.

First, the dehumidifying unit 100 is an element for removing moisture contained in synthetic resin beads (synthetic resin raw material).

2 is a photograph of a dehumidifying unit according to the present invention.

As shown in FIG. 2, in the present invention, a primary dehumidifying unit and a secondary dehumidifying unit are provided so that the synthetic resin beads are dehumidified through two steps. to be easily removed.

The dehumidifying unit includes a drying hopper in which synthetic resin beads are stored, a heater supplying heated air into the drying hopper, a fan circulating air, and a desiccant built into the drying hopper, and the dehumidifying unit has already been widely used. Since it is a known and customary means, a detailed description thereof will be omitted.

Next, the extrusion unit 200 melts the synthetic resin beads dried in the dehumidifying unit, and injects the molten synthetic resin beads (hereinafter referred to as 'melted resin') into the mold to extrude the molten resin into a handrail shape. element to make it happen.

As shown in FIG. 1 , the extruding unit 200 is an element that is disposed between the nonwoven fabric supply unit 300 and the conveying unit 500 and extrudes a synthetic resin into the nonwoven fabric conveyed forward by the conveying unit.

More specifically, the extruding unit 200 includes a supply hopper into which the synthetic resin beads dehumidified in the dehumidifying unit are put, a heating chamber 202 provided to communicate with the supply hopper, a heating band mounted on the outer periphery of the heating chamber, It includes a screw installed inside the heating chamber, a mold for molding the molten resin melted in the heating chamber into a specific shape, and a piston for pressing and transferring the molten resin inside the heating chamber to the mold side.

In particular, the mold according to the present invention includes a primary mold 220 and a secondary mold 240 .

In the present invention, the extrusion unit 200 is separately provided as a primary extrusion unit for supplying the molten resin to the primary mold and a secondary extrusion unit for supplying the molten resin to the secondary mold, but this is not limited to the present invention. , by placing a manifold inside the extruding unit according to the user's needs, it may be provided so that the molten resin discharged from one extruding unit is injected into the primary mold and the secondary mold, respectively.

The primary mold 220 is an element in which the molten resin is first injected in a state in which the nonwoven fabric is inserted into the primary mold, and the primary extrudate is molded,

The secondary mold 240 is an element in which the primary extrudate molded in the primary mold is seated therein, and the molten resin is secondary injected after an additional wire is inserted to mold the secondary extrudate to be.

The primary and secondary molds are extrusion molds, and a first inlet having a first cavity shape is formed at the rear end of the primary mold, and a first outlet having a first cavity shape is formed at the front end, and the first inlet The nonwoven fabric is inserted into the first cavity through the

In addition, a second inlet in the shape of a second cavity is formed at the rear end of the secondary mold, and a second outlet in the shape of a second cavity is formed at the front end, and the wire and the primary extrudate are discharged through the second inlet. 2 is inserted into the cavity.

In other words, the primary extrudate molded in the primary mold is transferred to the secondary mold by the non-woven fabric supply unit and the transport unit, and the extrusion unit 200 continuously applies synthetic resin to the non-woven fabric transported by the transport unit 500 . Coating so that the extrudate is extruded long along the longitudinal direction of the nonwoven fabric.

That is, the nonwoven fabric is transferred forward by the transfer unit 500 and sequentially passes through the primary mold and the secondary mold, so that the extrudate is applied to the surface of the nonwoven fabric and fused.

Hereinafter, the primary mold and the secondary mold used in the present invention will be described in detail.

As shown in FIGS. 3 to 4 , both the primary mold and the secondary mold are composed of upper and lower molds.

The primary mold includes a primary upper mold 20 in communication with the heating chamber, a primary lower mold 40 disposed under the primary upper mold and raised and lowered by an elevating driving unit 80. .

6, the first upper mold and the first lower mold are provided to be fastened and separated from each other in the vertical direction, and as the first upper mold and the first lower mold are fastened, the first upper mold and the first A first cavity C1 is formed between the lower molds of the car, and the molten resin injected into the primary mold is molded into the shape of the first cavity.

The secondary mold includes a secondary upper mold 20 in communication with the heating chamber, a secondary lower mold 40 disposed under the secondary upper mold and raised and lowered by an elevating driving unit 80. .

The second upper mold and the second lower mold are provided to be fastened and separated from each other in the vertical direction. As the second upper mold and the second lower mold are fastened, a second cavity is formed between the second upper mold and the second lower mold. (C2) is formed, and the molten resin injected into the secondary mold is molded into a second cavity shape.

In more detail, the upper mold 20 is formed with a nozzle part 30 into which the molten resin is injected.

Referring to FIG. 6 , the nozzle unit 30 includes an injection hole 32 through which the molten resin is injected from the heating chamber, a runner 34 that delivers the molten resin injected through the injection hole to the first cavity, and from the runner and a gate 36 formed in the cavity for receiving the resin.

As shown in FIG. 5 , the handrail 10 manufactured by the present invention is a member having a long length as a whole, and a horizontal part 12 and a round part in which both ends of the horizontal part are rolled in a lower inner direction. By including (14), it is difficult to form a high-quality cavity because of the shape of the round portion (14).

To this end, the lower mold 40 in the present invention includes a first lower mold 42 mounted on the upper part of the elevating driving unit 80 and elevating and lowering by the elevating driving unit, and the amount of the upper surface of the first lower mold. It includes a pair of second lower molds 44 respectively mounted on the edges.

The second lower mold 44 is an element for more easily forming the first cavity and the second cavity, and the second lower mold is used to form a higher quality round part 14, It is fixedly coupled to both edges of the upper surface of the lower mold.

As shown in FIG. 4 , the primary mold 220 further includes a guide part 60 mounted on the rear end of the lower mold to guide the transfer of the nonwoven fabric.

The guide part 60 is mounted only on the primary mold, and the guide part is an element that allows the nonwoven fabric inserted into the primary mold to be deformed into a specific shape.

In more detail, the guide part 60 includes a plate-shaped base plate 62 disposed at the rear end of the lower mold, and a jig 64 mounted on the upper surface of the base plate elongated in the direction in which the nonwoven fabric is transported; , and a plurality of guide rollers 66 installed on the base plate and disposed on both sides of the jig to guide the nonwoven fabric to be seated in the correct position of the jig 64 .

The guide part 60 is an element provided to allow the nonwoven fabric to enter the inside of the primary mold in a shape corresponding to the vertical cross-section of the handrail.

To this end, as shown in FIG. 4, the jig 64 has a long length, and is provided to have a horizontal part and a round part in the same external shape as the handrail, and both edges of the nonwoven fabric are provided on both sides of the jig. A plurality of guide rollers to guide the

The guide roller is provided to rotate with a rotation shaft mounted in the vertical direction on the base plate 62, and rotates together as the nonwoven fabric is transported forward to guide the transport of the nonwoven fabric.

In particular, the guide roller is provided in a shape corresponding to the side surface of the jig so that the nonwoven fabric is transported in a state in close contact with the jig,

The guide roller 66 includes a first protrusion (not marked) corresponding to the upper surface of the horizontal portion of the jig, and a guide groove (not marked) that is formed to extend under the first protrusion, and corresponds to the side surface of the round part of the jig; , is formed extending under the guide groove, and includes a second protrusion (not marked) corresponding to the bottom surface of the round part of the jig.

That is, on the outer periphery of the guide roller, the first protrusion, the guide groove, and the second protrusion are continuously formed from the top to the bottom.

In particular, the second protrusion is formed to protrude more outward than the first protrusion so that both edges of the nonwoven fabric are completely rolled in the lower inner direction.

In addition, a long fastening hole (not indicated) is formed on the upper surface of the base plate 62 in a direction crossing the transfer direction of the handrail.

The fastening hole is an element for mounting the rotation shaft of the guide roller, and as the fastening hole is formed into a long hole, the operator can change the position of the guide roller according to the shape or width of the jig.

As such, the extruding unit 200 includes a primary mold 220 for molding a primary extrudate by extruding a primary molten resin in a state in which the nonwoven fabric supplied from the nonwoven fabric supply unit 300 is inserted therein; A secondary mold 240 that receives the primary extrudate and extrudes the secondary molten resin in a state in which the wire supplied from the wire supply unit 400 is inserted into the upper part of the primary extrudate to mold the secondary extrudate ) is included.

The lower molds of the primary mold and the secondary mold are provided to be raised and lowered to insert the nonwoven fabric and wire into the inside, and should be provided in a state of being fastened with the upper mold during extrusion molding.

In particular, the primary extrudate molded in the primary mold is transferred to the secondary mold by the transfer unit 500, and is provided to be continuously secondary molded.

On the other hand, a nonwoven fabric supply unit 300 for supplying a nonwoven fabric to the primary mold is disposed at the rear of the primary mold, and a wire supply unit 400 for supplying the wire to the secondary mold at the rear of the secondary mold. is placed

The nonwoven fabric supply unit 300 includes a drum (not shown) in which a nonwoven fabric is wound around an outer periphery in a roll shape, and a support (not shown) for supporting the drum so as to be idling, and the wire supply unit 400 is also Like the nonwoven fabric supply unit, it includes a drum (not marked) on which a wire is wound in a roll shape on the outer periphery, and a support (not marked) for supporting the drum so as to be idling.

The nonwoven fabric supply unit 300 and the wire supply unit 400 have different installation heights from each other so that the nonwoven fabric and the wire do not interfere with each other when each drum is unwound.

As shown in FIG. 9 , a plurality of mounting rollers (not marked) may be mounted on the support of the nonwoven fabric supply unit and the wire supply unit, and the nonwoven fabric supply unit and the wire supply unit are already well-known conventional means, so a detailed description thereof will be omitted. do.

10 is a photograph of the transfer unit according to the present invention.

The transfer unit 500 is disposed in front of the extrusion unit, and is an element for transferring the nonwoven fabric forward. The transfer unit allows the nonwoven fabric to be transferred forward after sequentially passing through the primary mold and the secondary mold.

As the nonwoven fabric is transported forward by the conveying unit, the primary extrudate applied to the nonwoven fabric and the secondary extrudate fused to the primary extrudate are transported forward together with the nonwoven fabric.

As shown in FIG. 10 , in more detail, the transfer unit 500 includes an upper pressure roller 520 and a lower pressure roller 540 that are vertically disposed with each other, and any one or more of the upper pressure roller and the lower pressure roller Including a driving motor (M) for driving the, serves to transfer the end of the nonwoven fabric wound on the drum forward.

At this time, the upper pressing roller and the lower pressing roller are rotated in opposite directions, and the handrail (secondary melt) disposed between the upper pressing roller and the lower pressing roller is transferred forward by the rotational force of the upper pressing roller and the lower pressing roller. prepared to be

An adhesion member made of a rubber material having frictional force is mounted on the outer periphery of the upper pressing roller and the lower pressing roller, so that the handrail is transported more efficiently.

In addition, the upper pressing roller is provided to be able to ascend and descend by the height adjusting means 560, and the upper pressing roller is raised and lowered according to the thickness of the hand rail passing between the upper pressing roller and the lower pressing roller. Make sure the rail is transported stably.

In addition, the upper pressure roller and the lower pressure roller, as shown in FIG. 10, one or more pairs of rollers are provided to be spaced apart from each other in the left and right directions, and a rubber belt of a caterpillar shape is mounted to surround the plurality of rollers, etc. It may be provided in various forms, which is not limited to the present invention.

In addition, according to the user's needs, any one of the upper and lower pressure rollers is a drive roller rotated by a drive motor, and the other one is disposed in contact with the drive roller and is installed to be able to roll and rotate together with the drive roller. It may be provided as an idle roller.

Meanwhile, the cooling unit 600 is an element for cooling a semi-finished product that has been extruded.

The semi-finished product in the shape of a handrail that has passed through the extrusion unit 200 is cooled while passing through the cooling unit.

As shown in FIG. 11 , the cooling unit 600 includes a housing 610 having a space formed therein, one or more cooling dies 620 installed on the inlet side of the housing and equipped with a heat exchanger, and a cooling die. A vacuum nozzle (unsigned) for allowing the inside to be vacuumed, a spraying nozzle for spraying water into the housing (unmarked), and a first guide member 640 for guiding the left and right sides of the handrail passing through the housing; and a second guide member 660 for guiding the upper and lower portions of the handrail.

The housing 610 is an element with an open top and a space formed therein.

An inlet through which the semi-finished product extruded through the extrusion is introduced is formed at one end of the housing, and an outlet through which the handrail cooled inside the housing is discharged is formed at the other end.

The housing in the present invention is formed in a rectangular tubular shape having a long length, and the inlet and outlet are respectively formed at both ends of the housing in the longitudinal direction.

In addition, a spray nozzle connected to the water tank and spraying water into the housing is installed on the side of the housing, and the semi-finished product is cooled by the water flowing into the housing through the spray nozzle.

The injection nozzle is sprayed in the direction toward the cooling die or is directly connected to the cooling die so that the handrail-shaped semi-finished product passing through the cooling die is effectively cooled.

The water introduced into the housing is discharged to the outside through a drain hole formed on the bottom surface of the housing, and in the present invention, a water collector 612 is installed in the lower part of the housing to communicate with the drain hole, and the water collected in the water collector It was made to be reused through this separate circulation line.

As shown in FIG. 12 , the cooling die 620 is installed on the inlet 611 side of the housing, and is an element for cooling the semi-finished product passing through the cooling die.

A handrail-shaped through hole 622 is formed in the cooling die, and the handrail-shaped semi-finished product is cooled while passing through the cooling die.

The cooling die is equipped with a heat exchanger so that the semi-finished product passing therein is cooled more efficiently.

In addition, a plurality of cooling dies are provided, and the plurality of cooling dies are installed to be spaced apart from each other by a predetermined interval along the longitudinal direction of the housing, so that a semi-finished product having a long length can be cooled to a good product.

In the present invention, a heat exchanger is mounted on one cooling die disposed on the inlet side of the housing, and the heat exchanger is omitted on the other cooling die, but this is not limited to the present invention.

In addition, a vacuum nozzle that vacuums the inside of the cooling die so that the surface of the semi-finished product is formed smoothly is fastened to this cooling die.

Next, a first guide member 640 for guiding the left and right sides of the handrail passing through the housing and a second guide member 660 for guiding the upper and lower portions of the handrail are mounted on the housing.

The first guide member and the second guide member are mounted in front of the cooling die, and are elements for guiding the movement of the cooled handrail while passing through the cooling die.

13, the first guide member 640 includes a pair of guide rods 642 spaced apart from each other by the width of the handrail, and a guide roller ( 644), and a support rod 644 installed on the upper end of the housing in a direction crossing the guide rod to support a pair of guide rods.

The guide roller 644 is installed in the vertical direction, and as the handrail is transported forward, the handrail is in direct contact with the left and right sides while rolling (idling), and the handrail is cooled by the water remaining inside the housing. Do not bend laterally.

In addition, the distance between the guide rods can be adjusted in the longitudinal direction of the support rod, and the operator adjusts the spacing between the pair of guide rods according to the width of the handrail so that the guide roller stably supports both ends of the handrail.

14, the second guide member 660 is spaced upward by the height of the handrail from the inner bottom surface of the housing, and a guide rod 662 disposed horizontally with the bottom surface, and the guide rod. It includes a guide roller 664 provided to be rotatably rolling on the outer periphery, a support 666 for supporting both ends of the guide rod, and a height adjustment member 668 for adjusting the height of the support.

The guide roller 664 is installed in the horizontal direction, and as the handrail is transferred forward, it rolls while in direct contact with the upper surface of the handrail to guide the transfer of the handrail.

And at this time, the handrail passing through the cooling unit is transferred forward by the finished product transfer unit 900 .

15, the finished product transfer unit 900 includes a pair of conveyor belts arranged vertically and a driving motor (M) for driving any one or more of the pair of conveyor belts, The finished handrail product cooled by the cooling unit is transferred forward while passing through the space between the pair of conveyor belts.

The pair of conveyor belts rotate in opposite directions, and the handrail finished product disposed in the space between the pair of conveyor belts is provided to be transferred forward by the rotational force of the conveyor belt.

In addition, a guide roller for guiding the handrail transferred from the cooling unit to the finished product conveying unit is mounted at the rear end of the pair of conveyor belts.

The conveyor belt includes a pair of sprockets, a chain that connects the pair of sprockets and is provided in an endless track, a jig mounted on the outer periphery of the chain, and a rubber material that is mounted on the jig and is in direct contact with the handrail. It includes an adhesive member,

The pair of sprockets are provided to adjust the tension of the chain by adjusting the spacing.

Next, a cutting unit 800 for cutting to a predetermined length is disposed in front of the finished product transfer unit.

Meanwhile, the present invention further includes an inspection unit 700 , and the inspection unit is an element for inspecting the thickness, tensile force, etc. of the handrail.

As shown in FIG. 16 , the inspection unit 700 includes a bobbin on which a semi-finished or finished handrail product is wound, a tension control unit for adjusting the tension of the handrail wound on the bobbin, and the stiffness and toughness of the handrail. It includes an inspection unit that inspects the physical properties.

In the present invention, the primary molded product passing through the primary mold of the extrusion unit is cooled in the cooling unit without passing through the secondary mold, and then the physical properties of the handrail are inspected using the inspection unit 700, and the inspection result is set in advance. If the value is satisfied, the handrail is normally manufactured, but this is only an example.

In other words, the inspection unit 700 inspects the primary melt that has passed through the primary mold of the extrusion unit, or inspects the semi-finished product in which the primary melt is cooled through the cooling unit, or the primary mold of the extrusion unit, 2 It can be utilized in various ways according to the user's design, such as inspecting the handrail in the finished product state that has been sequentially passed through the car mold and the cooling unit, but is not limited to the present invention.

As described above, the present invention has been described with reference to the embodiments shown in the drawings, but this is only for explaining the invention, and various modifications or equivalents from the detailed description of the invention to those of ordinary skill in the art to which the present invention pertains It will be appreciated that one embodiment is possible.

Therefore, the true scope of the present invention should be determined by the technical spirit of the claims.

10: handrail
11: Non-woven
12: horizontal part
13: wire
14: vertical part
20: upper mold
30: nozzle unit
32: inlet
34: Runner
36: gate
40: lower mold
42: first lower mold
44: second lower mold
60: guide unit
62: base plate
64: jig
66: guide roller
80: elevating and descending eastern part
1000: handrail manufacturing device
100: dehumidifier
200: extrusion unit
220: primary mold
240: secondary mold
300: non-woven fabric supply unit
400: wire supply unit
500: transfer unit
520: upper pressure roller
540: lower pressure roller
560: height adjustment means
600: cooling unit
610: housing
611: inlet
612: sump
620: cooling die
622: through hole
640: first guide member
642, 662: guide rod
644, 664: guide roller
660: second guide member
666: support
668: height adjustment member
700: inspection unit
800: cut part
900: finished product transfer unit
C1: first cavity
C2: second cavity
M: drive motor

Claims (3)

A nonwoven fabric supply unit comprising a drum having a nonwoven fabric wound around an outer periphery, and a support for rotatably supporting the drum;
a transfer unit including an upper and lower pressing rollers disposed vertically and a driving motor for driving any one of the upper and lower pressing rollers to transport the nonwoven fabric wound on the nonwoven supply unit forward;
an extrusion unit disposed between the nonwoven fabric supply unit and the conveying unit and extruding a synthetic resin to the nonwoven fabric conveyed forward by the conveying unit;
a wire supply unit installed at the rear of the extruding unit to supply a wire to the extruding unit; and
A cooling unit disposed between the extruding unit and the conveying unit, and cooling the extrudate molded by the extruding unit;
The extrusion unit,
The first upper mold communicating with the heating chamber,
A first lower mold disposed below the primary upper mold and raised and lowered by an elevating driving unit, a primary lower mold including a pair of second lower molds respectively mounted on both edges of the upper surface of the first lower mold class,
Including a first cavity formed in the space between the first upper mold and the first lower mold, wherein the molten resin is first injected in a state in which the nonwoven fabric is inserted into the first cavity to extrude the first extrudate mold;
A secondary upper mold in communication with the heating chamber,
A second lower mold including a first lower mold disposed below the secondary upper mold and raised and lowered by an elevating driving unit, and a pair of second lower molds respectively mounted on both edges of the upper surface of the first lower mold class,
and a second cavity formed in the space between the second upper mold and the second lower mold, wherein after the first extrudate and the wire are inserted into the second cavity, the molten resin is secondarily injected to form the second extrudate A handrail manufacturing apparatus comprising a secondary mold for extrusion molding.
delete The method of claim 1,
A guide part is mounted on the rear end of the primary mold to be transferred to the primary mold with both edges of the nonwoven fabric formed in the lower inner direction,
The guide part includes a plate-shaped base plate disposed at the rear end of the primary mold, a jig mounted long along the direction in which the nonwoven fabric is transported on the upper surface of the base plate, and the base plate installed on both sides of the jig A handrail manufacturing apparatus disposed and comprising a plurality of guide rollers for guiding the nonwoven fabric to be seated in the correct position of the jig.

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