Device and method for manufacturing zipper for bag

Abstract

The present invention relates to an apparatus for manufacturing a zipper for a bag, comprising: a raw material supply unit for supplying a raw material for forming a frame for forming an open part of the bag; the extrusion forming part is used for performing extrusion forming on the raw materials supplied by the raw material supply part; a zipper supply part for supplying the zipper to the extrusion forming part in order to fix the zipper on the frame after extrusion forming; and a cooling and transferring part which cools and transfers the frame extruded together with the zipper at the extrusion forming part, so that the manufacturing is convenient, and the zipper can be firmly connected. In addition, the invention also relates to a manufacturing method of the zipper for the bag, which comprises the following steps: supplying raw materials for forming the framework of the bag to a raw material supply part; injecting the raw material supplied to the raw material supply part into the extrusion molding part; supplying the zipper fixed on the frame to the extrusion forming part; extruding and forming the zipper cloth of the zipper in a state of connecting the zipper cloth to the raw material supplied to the extruding and forming part; the extrusion-molded frame to which the zipper is fixed is cooled by a cooling transfer unit.

Description

Technical Field

[0001] The present invention relates to a bag zipper manufacturing device and a manufacturing method thereof, and more particularly to a bag zipper manufacturing device and a manufacturing method thereof. When a frame for connecting the zipper is extruded and formed together with the zipper, the manufacturing is convenient and the zipper can be firmly connected. Background Art

[0002] Generally, travel bags are used for domestic and overseas travels, in order to organize the clothes for changing and carry them. As the souvenirs purchased at the travel destination increase, the volume of the contents will also increase. When returning from the trip, the volume of the contents will generally be larger than when setting out or the bag will increase.

[0003] Figure 1 As a three-dimensional diagram showing a common travel bag, a general travel bag 1 is provided with a main body 2 formed by a quadrilateral box, and a storage space 2a for storing books or clothes is provided inside the main body 2, a zipper 4 is formed on the edges of the main body 2 and the lid 3 to open and close the storage space 2a, a movable wheel 5 is provided at the lower end of one side of the main body 2 to facilitate movement, and a carrying handle 6 is provided at the upper end of the main body 2 to facilitate the user to carry the bag 1 and move.

[0004] The zipper 4 suitable for this travel bag 1 is as follows Figure 2 As shown, the zipper cloth 4a is attached to the inner sides of the main body 2 and the lid 3 of the bag 1 dividing the two sides by sewing, and the zipper cloths 4a on both sides are formed with tooth profiles 4b and 4b' with mutually interlocking structures, and a slider 4c with a handle 4d thereon moves along the tooth profiles 4b and 4b' to close or open the zipper cloths 4a on both sides.

[0005] In this conventional zipper 4 structure, when pressure is applied to the inner side of the bag, the zipper 4 may be opened. Figure 3 As shown, the zipper cloth 4a is easily folded, so that the bag is crushed. The problem is that, with continuous repeated operations, the zipper cloth 4a is easily damaged, the zipper cloth 4a is easily separated from the main body 2 and the lid 3, and the original state of the bag cannot be maintained for a long time.

[0006] In addition, when the main body 2 and the cover 3 of the bag 1 connected with the zipper 4 are made of synthetic resin material or metal material, the zipper 4 is adhered and fixed to the main body 2 and the cover 3 with an adhesive or the like. The problem is that as time goes by, the adhesive force weakens and the zipper 4 is easily torn even with a small force.

[0007]

Prior technical literature

[0008] [Patent Literature]

[0009] (Patent Document 1) Korean Registered Utility Model Publication No. 20-0345061 (Announced on March 18, 2004) Summary of the Invention

[0010] The present invention is proposed to solve the above-mentioned problems, and its purpose is to provide a zipper manufacturing device for bags and its manufacturing method. In the opening part of a bag made of hard type of synthetic resin or aluminum, together with the extrusion molding of the frame, a zipper is connected to the frame, thereby eliminating the inconvenience of separately sewing or pasting and fixing the zipper to the formed frame in the past, minimizing the operation process, improving the operation efficiency, enabling the zipper to be firmly connected to the frame, improving the quality of the bag, and enhancing user satisfaction.

[0011] To achieve the above object, a zipper manufacturing device for bags according to an embodiment of the present invention may include: a raw material supply unit that supplies raw materials for molding a frame having an opening part of a bag; an extrusion molding unit that extrudes and molds the raw materials supplied by the raw material supply unit; a zipper supply unit that supplies a zipper to the extrusion molding unit in order to fix the zipper to the extruded frame; a cooling transfer unit that cools and transfers the frame extruded together with the zipper in the extrusion molding unit.

[0012] In addition, the extrusion molding unit may include: a supply mold to which the raw materials of the frame and the zipper are supplied; a template mold that is connected to the supply mold and is used to insert a zipper cloth between the supplied raw materials; an extrusion mold that is connected to the template mold and extrudes and molds the frame in a form that fixes the zipper.

[0013] In addition, the supply mold may be formed with a raw material injection port for injecting the raw materials of the frame, and a zipper inlet for the zipper to flow in.

[0014] At this time, in order to enable the zipper to be inserted and fixed in the frame, the zipper inlet may be formed between the raw material injection ports.

[0015] Meanwhile, in order to be able to insert the zipper cloth supplied to the zipper inlet into the raw materials injected into the raw material injection port of the supply mold and perform extrusion, the template mold may be connected to the raw material injection port and the zipper inlet.

[0016] Moreover, in order to be able to extrude the frame with the zipper fixed after inserting the zipper cloth into the raw materials discharged through the template mold, the extrusion mold may be formed with an extrusion molding port.

[0017] According to one embodiment of the present invention, a method for manufacturing a zipper for a bag is characterized in that it may include the following steps: (a) supplying raw materials for a frame for molding a bag to a raw material supply section; (b) melting the raw materials supplied to the raw material supply section and injecting them into an extrusion molding section; (c) supplying a zipper fixed to the frame to the extrusion molding section; (d) performing extrusion molding in a state where the zipper fabric of the zipper is connected to the raw materials supplied to the extrusion molding section; and (e) cooling the frame to which the zipper is fixed and extruded through a cooling transfer section.

[0018] In addition, the method may further include the step of (f) cutting the frame cooled by the cooling transfer unit into a predetermined size.

[0019] In addition, in the step (c) of supplying the zipper fixed to the frame to the extrusion molding part, the zipper part may be supplied in a form of being inserted between the raw materials injected into the extrusion molding part.

[0020] At the same time, in the step (d) of extruding the slide fastener fabric connected to the raw materials supplied to the extrusion molding part, the slide fastener is extruded by the extrusion molding part in a state where the slide fastener fabric is located between the raw materials and the slide fastener is fixed to the frame.

[0021] As described above, according to one embodiment of the present invention, in order to connect a zipper for opening and closing a bag to a frame, when extruding the frame, the zipper is supplied while injecting synthetic resin or aluminum raw materials, and is extruded in a state where a zipper cloth is inserted between the synthetic resin raw materials, so that the zipper is directly and firmly fixed to the frame during the extrusion molding process, thereby improving the quality of the bag and preventing the zipper from being torn, thereby maximizing user satisfaction. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a perspective view showing a general travel bag.

[0023] Figure 2 This is a cross-sectional view showing a conventional bag zipper.

[0024] Figure 3 This is a cross-sectional view showing a state in which a conventional bag zipper is collapsed by external pressure.

[0025] Figure 4 1 is a diagram showing the structure of a bag zipper manufacturing device according to the present invention.

[0026] Figure 5 1 is a front view showing the bag zipper manufacturing device according to the present invention.

[0027] Figure 6 1 is a plan view showing a bag zipper manufacturing apparatus according to the present invention.

[0028] Figure 7 is a perspective view showing an extrusion molding part of a zipper manufacturing apparatus for bags according to the present invention.

[0029] Figure 8 is a cutaway sectional view showing an extrusion molding part of a zipper manufacturing apparatus for bags according to the present invention.

[0030] Figure 9 is showing according to Figure 7 a side view of a supply die of the extrusion molding part.

[0031] Figure 10 is showing according to Figure 7 a side view of a template die of the extrusion molding part.

[0032] Figure 11 is showing according to Figure 7 a side view of an extrusion die of the extrusion molding part.

[0033] Figure 12 is a sequence diagram showing a method for manufacturing a zipper for bags according to the present invention.

[0034] Figure 13 is a perspective view showing a frame extrusion molded together with a zipper by a zipper manufacturing apparatus and method according to the present invention.

[0035] Figure 14 is a cutaway sectional view showing a frame extrusion molded together with a zipper by a zipper manufacturing apparatus and method according to the present invention.

[0036] Figure 15 is a front view showing a connection state of a zipper manufactured by a zipper manufacturing apparatus and method according to the present invention.

[0037] Reference Numeral Explanation

[0038] 10: Bag 20: Frame

[0039] 30: Zipper 31: Zipper Cloth

[0040] 32: Tooth Shape 33: Slider

[0041] 34: Pull Tab 40: Film

[0042] 50: Film Winding Roller 100: Raw Material Supply Unit

[0043] 110: Raw Material Storage Hopper 120: Raw Material Feeder

[0044] 200: Extrusion Molding Unit 210: Supply Die

[0045] 211, 221, 231a: Raw Material Injection Port 212, 222, 231b: Zipper Inlet

[0046] 213: Film injection port 220: Template mold

[0047] 230: Extrusion mold 231: Extrusion forming port

[0048] 300: Zipper supply unit 310: Support frame

[0049] 320: Winding roller 330: Transfer roller

[0050] 340: Driving belt 400: Cooling transfer unit

[0051] 500: Cutting unit Detailed implementation mode

[0052] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The features and advantages of the present invention and the means for realizing them will become clear from the drawings and the embodiments described in detail below. However, the embodiments of the present invention described below are merely exemplary, and the scope of the present invention is not limited to the described embodiments. In addition, the constituent elements of each embodiment can be combined in various ways within another mentioned embodiment or between embodiments without contradiction with each other.

[0053] In addition, when it is described that a certain part "includes" a certain component, this means that it definitely includes the component regardless of other components, rather than excluding the addition of other components.

[0054] In addition, throughout the specification, when it is described that a certain part is "connected" to another part, it includes not only the case of "directly connected", but also the case of "indirectly" or "electrically connected" with other components or elements intervening therebetween.

[0055] In addition, throughout the specification, the description that each layer (film), region, pattern or structure is formed "on / above (on)" or "under / below (under)" the substrate, each side (film), region, spacer or pattern includes being formed directly (directly) or with other layers intervening. The reference for the above / above or below / below of each layer is described based on the drawings.

[0056] In addition, expressions such as "first, second" are only used to distinguish multiple components, and do not limit the order or other features between the components.

[0057] Figure 4 It is a configuration diagram showing a bag zipper manufacturing device according to the present invention, Figure 5 It is a front view showing a bag zipper manufacturing device according to the present invention, Figure 6 It is a plan view showing a bag zipper manufacturing device according to the present invention, Figure 7is a perspective view showing an extrusion molding part of a zipper manufacturing apparatus for bags according to the present invention, Figure 8 is a cut-away sectional view showing an extrusion molding part of a zipper manufacturing apparatus for bags according to the present invention, Figure 9 is showing according to Figure 7 a side view of a supply die of an extrusion molding part, Figure 10 is showing according to Figure 7 a side view of a template die of an extrusion molding part, Figure 11 is showing according to Figure 7 a side view of an extrusion die of an extrusion molding part, Figure 12 is a sequential diagram showing a method for manufacturing a zipper for bags according to the present invention, Figure 13 is a perspective view showing a frame extrusion-molded together with a zipper by a zipper manufacturing apparatus and method according to the present invention, Figure 14 is a cut-away sectional view showing a frame extrusion-molded together with a zipper by a zipper manufacturing apparatus and method according to the present invention, Figure 15 is a front view showing a connection state of a zipper manufactured by a zipper manufacturing apparatus and method according to the present invention.

[0058] As Figures 4 to 6 shown, the zipper manufacturing apparatus for bags according to the present invention may include a raw material supply unit 100, an extrusion molding unit 200, a zipper supply unit 300, a cooling transfer unit 400, and a cutting unit 500.

[0059] The raw material supply unit 100 supplies raw materials for extrusion molding a frame 20 having an opening part of a bag 10. At this time, as the raw material of the frame 20, at least one synthetic resin such as polycarbonate (PC), ABS, polypropylene (PP), polyurethane (PU), or aluminum (Al) may be used. More preferably, the raw material of the frame 20 may be a mixture of polycarbonate (PC) and ABS.

[0060] On the other hand, when the raw material for extrusion molding the frame 20 is a mixture of polycarbonate (PC) and ABS, the mixing ratio may be 6 to 7 parts by weight of polycarbonate (PC): 3 to 4 parts by weight of ABS. The higher the specific gravity of polycarbonate (PC), the stronger the strength.

[0061] In addition, the melting temperature of polycarbonate (PC) used as the raw material of the frame 20 is about 250 to 260 degrees, the melting temperature of ABS is about 180 degrees, and the melting temperature when PC / ABS is mixed is about 220 to 230 degrees. In addition, the melting temperature of the zipper cloth 31 is 260 degrees Celsius or higher. Therefore, for the frame 20 applicable to the present invention, a raw material mixture of PC and ABS is used, and when the frame 20 is extrusion-molded through the extrusion molding unit 200, the zipper cloth 31 does not melt and can be inserted and fixed inside the frame 20.

[0062] Reference Figure 4 and Figure 5 , the raw material supply unit 100 may include: a raw material storage hopper 110 for storing raw materials; a raw material feeder 120 connected to the raw material storage hopper 110 and melting the raw materials stored in the raw material storage hopper 110 and supplying them to the extrusion molding unit 200. At this time, the structure and working principle of the raw material feeder 120 have been widely used in the extrusion molding machine, so the detailed description thereof will be omitted.

[0063] The extrusion molding unit 200 is connected to the raw material supply unit 100 and extrudes the raw materials supplied from the raw material supply unit 100 into a frame 20.

[0064] Reference Figure 7 and Figure 8 , the extrusion molding unit 200 may include a supply mold 210, a template mold 220, and an extrusion mold 230.

[0065] Reference Figure 9 , the supply mold 210 is connected to the raw material supply unit 100, and while obtaining the supply of raw materials of synthetic resin or aluminum, it can obtain the zipper 30 supplied through the zipper supply unit 300. Therefore, the zipper cloth 31 of the zipper 30 can be located inside the raw materials supplied to the supply mold 210.

[0066] Meanwhile, reference Figure 8 , the supply mold 210 may be formed with a raw material injection port 211 that penetrates through the front and back for injecting synthetic resin raw materials.

[0067] In addition, at least one or more raw material injection ports 211 are formed, and in order to change the color etc. of the extruded frame 20, different raw materials can be injected into each raw material injection port 211.

[0068] In addition, the supply mold 210 may be formed with a zipper inlet 212 for flowing in the zipper 30 supplied through the zipper supply unit 300. At this time, as Figure 9 shown, in order to insert and fix the zipper cloth 31 of the zipper 30 in the frame 20, the zipper inlet 212 may be formed between the raw material injection ports 211.

[0069] On the other hand, a film injection port 213 for coating the film 40 wound around the film winding roller 50 on the surface of the frame 20 may be formed in the raw material injection port 211. Therefore, when injecting synthetic resin raw materials and extruding, the film 40 is supplied to the film injection port 213, so that as Figure 14 shown, the film 40 can be coated on the surface of the frame 20. At this time, the film 40 coated on the surface of the frame 20 can have various colors and patterns.

[0070] The template die 220 is connected to the supply die 210 and can induce the raw material injected from the raw material supply unit 100 and the zipper 30 supplied from the zipper supply unit 300 so that the zipper 30 is inserted between the raw materials.

[0071] Refer to Figure 10 , in order to be able to insert the zipper cloth 31 flowing into the zipper inlet 212 into the raw material injected into the raw material inlet 211 of the supply die 210 and fix the zipper 30 to the frame 20 after extrusion molding, the template die 220 is connected to the raw material inlet 220 and the zipper inlet 222. Therefore, when the raw material injected into the raw material inlet 221 is extruded into the frame 20, the zipper cloth 31 can be inserted and fixed inside the frame 20.

[0072] The extrusion die 230 is connected to the template die 220 and can perform extrusion molding in a form that fixes the zipper cloth 31 of the zipper 30 to the frame 20.

[0073] Refer to Figure 11 , in order to be able to perform extrusion molding on the frame 20 fixed with the zipper 30 after inserting the zipper cloth 31 into the raw material discharged through the template die 220, the extrusion die 230 can be formed with an extrusion molding port 231. On the other hand, the extrusion molding port 231 can be connected to the raw material inlet 231a and the zipper inlet 231b, and the raw material inlet 231a can be formed in a shape identical to the cross-sectional shape of the frame 20.

[0074] In order to fix the zipper 30 to the frame 20 after extrusion molding, the zipper supply unit 300 supplies the zipper 30 to the extrusion molding unit 200. At this time, refer to Figure 15 , the zipper 30 is provided with zipper cloths 31 fixed to both side frames 20, each zipper cloth 31 is attached with teeth 32, and in order to move forward or backward along the teeth 32 while making the teeth 32 engage or disengage, a slider 33 having a handle 34 can be provided.

[0075] Refer to Figure 5 and Figure 6 , the zipper supply unit 300 may include: a support frame 310 provided on the side of the extrusion molding unit 200; a winding roller 320 connected to the support frame 310 and winding the zipper 30; a transfer roller 330 connected to the support frame 310 and transferring the zipper 30 wound around the winding roller 320 to the extrusion molding unit 200; a drive belt 340 connected to the transfer roller 330 and rotating the transfer roller 330 in order to transfer the zipper 30. At this time, the drive belt 340 is connected to a motor (not shown) and can rotate according to the drive of the motor.

[0076] The cooling and transfer unit 400 cools and transfers the frame 20 that is extrusion-molded together with the zipper 30 in the extrusion molding unit 200. On the other hand, cooling water for cooling the frame 20 after extrusion molding can be filled inside the cooling and transfer unit 400.

[0077] The cutting unit 500 is connected to the cooling and transfer unit 400 and cuts the frame 20 including the zipper 30 that is transferred after cooling treatment to a certain size.

[0078] The zipper cloth 31 is inserted and fixed inside the frame 20 that is extrusion-molded by the above-described device, so that the zipper 30 does not separate or tear from the frame 20.

[0079] Meanwhile, the frame 20 with the zipper 30 attached, which is extrusion-molded by the extrusion molding unit 200 and cooled by the cooling and transfer unit 400, has a length of about 1.5 to 2 m per minute. On the other hand, when the frame 20 is extrusion-molded at a rate of less than 1.5 m per minute, the productivity decreases, and the extrusion molding cannot be smoothly achieved in the desired form due to the high heat of the extrusion molding unit 200. And when the extrusion molding is carried out at a rate of more than 2 m, when it is cooled by the cooling and transfer unit 400, the cooling cannot be smoothly achieved, thus reducing the quality.

[0080] As Figure 12 shown, in the method for manufacturing a zipper for a bag according to an embodiment of the present invention, first, (a) supply the raw material for extrusion-molding the frame 20 having the open portion of the bag 10 to the raw material supply unit 100. (S100) At this time, as the raw material, at least any one or more synthetic resins such as polycarbonate (PC), ABS, polypropylene (PP), polyurethane (PU), or aluminum (Al) can be used.

[0081] In addition, (b) melt the raw material supplied to the raw material supply unit 100 and then inject it into the extrusion molding unit 200. (S200)

[0082] Meanwhile, (c) while injecting the raw material into the extrusion molding unit 200, supply the zipper 30 to the extrusion molding unit 200. (S300)

[0083] Inject the raw material into the raw material injection port 211 of the extrusion molding unit 200, and supply the zipper 30 to the zipper inlet 212, and supply the zipper cloth 31 in a form of being inserted and injected between the raw materials injected into the extrusion molding unit 200.

[0084] In addition, (d) perform extrusion molding in a state where the zipper cloth 31 of the zipper 30 is connected to the raw material supplied to the extrusion molding unit 200, so as to fix the zipper 30 to the frame 20 and form it. (S400)

[0085] When the raw material and the zipper 30 are supplied to the supply die 210 of the extrusion molding unit 200 and the frame 20 is extrusion molded through the extrusion die 230, with the zipper cloth 31 positioned between the raw materials, the frame 20 is extrusion molded by the extrusion molding unit 200, so that the zipper cloth 31 is inserted into the interior of the frame 20 and is extrusion molded in a state where the zipper 30 is fixed to the frame 20.

[0086] In addition, (e) the frame 20 extrusion molded in a state where the zipper 30 is fixed to the frame 20 is cooled by the cooling transfer unit 400. (S500) At this time, the cooling transfer unit 400 is filled with cooling water, and the extrusion molded and transferred frame 20 is transferred in a state of being immersed in the cooling water, thereby improving the cooling efficiency.

[0087] Thereafter, (f) the frame 20 with the zipper 30 fixed thereto, which has been cooled by the cooling transfer unit 400, is cut to a certain size.

[0088] (S600)

[0089] As described above, in the present invention, in order to extrusion mold the frame 20 connected to the zipper 30 for opening the interior of the bag 10, when the raw material supplied to the raw material supply unit 100 flows into the extrusion molding unit 200, the zipper 30 is supplied to the inside of the raw material injected into the extrusion molding unit 200.

[0090] In addition, while supplying the zipper 30, the frame 20 is extrusion molded by the extrusion molding unit 200, so that the zipper cloth 31 is molded in a state of being inserted into the frame 20.

[0091] Therefore, during the process of extruding the frame 20, the zipper 30 is molded in a state of being fixed to the frame 20. Thus, unlike in the past where the zipper is fixed to the frame by performing separate operations such as sewing or using adhesives, the zipper 30 is fixed to the frame 20 while the frame 20 is being extrusion molded, which facilitates the work.

[0092] In addition, since the zipper cloth 31 is extrusion molded in a state of being inserted into the frame 20, even when subjected to a strong impact, the zipper cloth 31 will not fall off or tear from the frame 20, thereby improving the quality of the bag 10 and enabling it to be used for a long time.

[0093] In the above detailed description of the present invention, only corresponding specific embodiments are described. However, it should be understood that the present invention is not limited to the specific forms mentioned in the detailed description. On the contrary, it should be understood to include all modifications, equivalents, and alternatives within the spirit and scope of the present invention defined by the claims.

[0094] In other words, the present invention is not limited to the above specific embodiments and descriptions, and anyone with ordinary knowledge in the technical field to which the present invention pertains can make various modifications without departing from the gist of the present invention claimed in the claims, and such modifications are within the scope of protection of the present invention.

Claims

1. A bag zipper manufacturing device, characterized in that: include: a raw material supplying section that supplies a raw material for molding a frame having an opening portion of a bag; An extrusion molding section, which is used to extrude and mold the raw material supplied by the raw material supply section; A zipper supply unit supplies the zipper to the extrusion molding unit in order to fix the zipper to the extrusion-molded frame; as well as A cooling and conveying section cools and conveys the frame extruded together with the zipper in the extrusion molding section, The extrusion molding department includes: Supply mold, frame materials and zipper are supplied to the supply mold; a template die connected to the supply die for inserting a zipper cloth between the supplied raw materials; An extrusion die is connected to the template die and extrudes the frame in the form of a fixed zipper.

2. The bag zipper manufacturing device according to claim 1, characterized in that: The supply mold is formed with a raw material injection port for injecting a raw material of the frame, and is formed with a zipper inlet for flowing the zipper.

3. The bag zipper manufacturing device according to claim 2, characterized in that: In order to allow the zipper to be inserted into and fixed to the frame, the zipper inlet is formed between the raw material injection ports.

4. The bag zipper manufacturing device according to claim 1, characterized in that: The template mold is connected to the raw material injection port and the zipper injection port so that the zipper cloth supplied to the zipper inlet can be inserted into the raw material injected into the raw material injection port of the supply mold and squeezed.

5. The bag zipper manufacturing device according to claim 1, characterized in that: In order to be able to extrude the frame to which the zipper is fixed after the zipper cloth is inserted into the raw material discharged through the template die, the extrusion die is formed with an extrusion molding port.

6. A method for manufacturing a bag zipper, characterized in that: The steps include: (a) supplying a raw material for forming a frame of a bag to a raw material supply unit; (b) melting the raw material supplied to the raw material supply part and injecting it into the extrusion molding part; (c) supplying the zipper fixed to the frame to the extrusion molding section; (d) performing extrusion molding in a state where the fastener fabric of the slide fastener is connected to the raw material supplied to the extrusion molding part; and (e) cooling the frame to which the zipper is fixed and extruded by passing it through a cooling transfer unit, In the step (c) of supplying the slide fastener fixed to the frame to the extrusion molding part, the slide fastener cloth is supplied in a form of being inserted between the raw materials injected into the extrusion molding part.

7. The method for manufacturing a bag zipper according to claim 6, characterized in that: (e) After cooling the frame to which the zipper is fixed and extruded by a cooling conveyor, the method further includes the step of (f) cutting the frame cooled by the cooling conveyor into a predetermined size.

8. The method for manufacturing a bag zipper according to claim 6, characterized in that: In the step (d) of extruding the slide fastener fabric connected to the raw materials supplied to the extrusion molding part, the slide fastener is extruded by the extrusion molding part while the fastener fabric is located between the raw materials and the slide fastener is fixed to the frame.

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