Bag fastener manufacturing device and method for the same

Abstract

To provide a bag fastener manufacturing device and method for the same capable of improving work efficiency by minimizing work steps, improving a quality of the bag by firmly connecting the fastener to a frame, and improving user satisfaction.SOLUTION: A bag fastener manufacturing device that is easy to manufacture and allows the fastener to be firmly connected because a frame for connecting the fastener is molded together with the fastener during extrusion molding includes: a raw material supply part 100 that supplies raw materials for molding the frame that forms an opening of the bag; an extrusion molding part 200 for extruding the raw material supplied from the raw material supply part 100; a fastener supplying part 300 that supplies the fastener to the extrusion molding part 200 to fix the fastener to the extrusion molded frame; and a cooling and transporting part 400 for cooling and transporting the frame extruded together with the fastener in the extrusion molding part 200.SELECTED DRAWING: Figure 4

Description

Technical Field

[0001] The present invention relates to a fastener manufacturing apparatus for bags and a manufacturing method thereof. More specifically, the present invention relates to a fastener manufacturing apparatus for bags and a manufacturing method thereof, which are convenient for manufacturing and can firmly connect fasteners because a frame for connecting fasteners is formed together with the fasteners during extrusion molding.

Background Art

[0002] Generally, when going on a long-distance trip such as domestic travel or overseas travel, a suitcase is carried by putting the clothes to be changed into a bag so that they can be easily sorted. Such personal belongings will have souvenirs purchased at the travel destination added, which will increase the volume of the stored contents. When returning after the trip, it is common for the volume of the stored contents to increase or the number of bags to increase compared to when departing.

[0003] FIG. 1 is a perspective view showing a general suitcase. A normal suitcase 1 is provided with a body 2 formed in a rectangular parallelepiped shape, and a storage space 2a for storing books, clothes, etc. is provided inside the body 2. A fastener 4 is formed at the edges of the body 2 and the cover 3 so as to open and close the storage space 2a. A moving wheel 5 is provided at one lower end of the body 2 so as to facilitate movement, and a carrying handle 6 is provided at the upper end of the body 2 so that the user can easily carry the bag 1 and move.

[0004] As shown in FIG. 2, the fastener 4 applied to such a suitcase 1 has fastener cloth 4a sewn and attached to the inside of the body 2 and the cover 3 of the bag 1 divided on both sides. Tooth shapes 4b, 4b' having a meshing structure with each other are formed on the fastener cloth 4a on both sides. A slider 4c having a handle 4d on the upper surface moves along the tooth shapes 4b, 4b' to close or open the fastener cloth 4a on both sides.

[0005] When pressure is applied inside the bag with such a conventional fastener 4 structure, as shown in Fig. 3, the fastener cloth 4a will easily fold while the bag collapses. Due to the continuously repeated operation, the fastener cloth 4a is easily damaged, the fastener cloth 4a is easily separated from the body 2 and the cover 3, and there is a problem that the original state of the bag cannot be maintained for a long time.

[0006] Also, if the body 2 and the cover 3 of the bag 1 to which the fastener 4 is connected are made of synthetic resin or metal, the fastener 4 will be adhesively fixed to the body 2 and the cover 3 with an adhesive or the like. However, there is a problem that the adhesive strength weakens over time and the fastener 4 is easily peeled off even by a small force.

Prior Art Documents

Patent Documents

[0007]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0008] The present invention was devised to solve the above problems. By connecting a fastener to a frame together with the extrusion molding of the frame at the opening part of a bag made of a hard type of synthetic resin or aluminum, it eliminates the inconvenience of separately sewing or adhesively fixing the fastener to a conventionally formed frame, minimizes the working process, improves the working efficiency, firmly connects the fastener to the frame, enhances the quality of the bag, and aims to provide a bag fastener manufacturing apparatus and its manufacturing method that can improve the user's satisfaction.

Means for Solving the Problems

[0009] A fastener manufacturing apparatus for a bag according to an embodiment of the present invention for achieving the above object includes a raw material supply unit for supplying a raw material for forming a frame having an opening portion of the bag, an extrusion molding unit for extrusion-molding the raw material supplied from the raw material supply unit, a fastener supply unit for supplying a fastener to the extrusion molding unit to fix the fastener to the extruded frame, and a cooling transfer unit for cooling and transferring the frame extruded together with the fastener in the extrusion molding unit.

[0010] Further, the extrusion molding unit may include a supply mold into which a raw material of the frame and a fastener are supplied, a mold frame mold for sandwiching a fastener cloth between the supplied raw materials connected to the supply mold, and an extrusion mold connected to the mold frame mold for extruding the frame so that the fastener is fixed.

[0011] And, the supply mold may be formed with a raw material injection port into which a raw material of the frame is injected, and a fastener inlet through which the fastener flows may be formed.

[0012] At this time, the fastener inlet may be formed between the raw material injection ports so that the fastener can be sandwiched and fixed to the frame.

[0013] At the same time, the mold frame mold may connect the raw material injection port and the fastener inlet so that the fastener cloth supplied to the fastener inlet is sandwiched between the raw materials injected into the raw material injection port of the supply mold and extruded.

[0014] Further, the extrusion mold may be formed with an extrusion molding port so that a frame in which the fastener cloth is sandwiched and the fastener is fixed is extruded from the raw material discharged through the mold frame mold.

[0015] The method for manufacturing a fastener for a bag according to an embodiment of the present invention may include: (a) supplying a raw material for forming a frame of the bag to a raw material supply unit; (b) melting the raw material supplied to the raw material supply unit and injecting it into an extrusion molding unit; (c) supplying a fastener fixed to the frame to the extrusion molding unit; (d) extruding the raw material supplied to the extrusion molding unit with a fastener cloth of the fastener connected thereto; and (e) cooling the frame in which the fastener is fixed and extruded while passing through a cooling transfer unit.

[0016] Further, it may further include (f) cutting the frame cooled by passing through the cooling transfer unit to a certain size.

[0017] And in (c) the step of supplying the fastener fixed to the frame to the extrusion molding unit, it may be supplied such that the fastener cloth is sandwiched between the raw materials injected into the extrusion molding unit.

[0018] At the same time, in (d) the step of extruding the raw material supplied to the extrusion molding unit with a fastener cloth of the fastener connected thereto, the fastener may be extruded in a state where it is fixed to the frame by the extrusion molding unit with the fastener cloth positioned between the raw materials.

Advantages of the Invention

[0019] As described in detail above, according to an embodiment of the present invention, when extruding a frame to connect a fastener for opening and closing a bag to the frame, by supplying a fastener together with the injection of a synthetic resin or aluminum raw material and extruding it with the fastener cloth sandwiched between the synthetic resin raw materials, the fastener is correctly and firmly fixed to the frame during the extrusion process, so that the fastener is not peeled off, improving the quality of the bag and thereby maximizing the user's satisfaction.

Brief Description of the Drawings

[0020]

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Embodiments for Carrying Out the Invention

[0021] 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 embodying them, will become clear through the embodiments described in detail later together with the accompanying drawings. However, the embodiments of the present invention described below are merely exemplary and are not intended to limit the scope of the present invention only to the described embodiments. Also, the components of each embodiment can be variously combined within an embodiment or between embodiments as long as there is no contradiction between other references or among themselves.

[0022] And when a certain part "includes" a certain component, this means that it necessarily includes this component regardless of other components, and is not intended to exclude the addition of other components.

[0023] Also, throughout the specification, when a certain part is described as "connected" to another part, this includes not only the case where it is "directly connected", but also the case where it is "indirectly" or "electrically connected" with other members or elements interposed therebetween.

[0024] Also, throughout the specification, the description that each layer (film), region, pattern or structure is formed "on / above (on)" or "under / below (under)" a substrate, each layer (film), region, pad or pattern includes all cases where it is formed directly or with other layers intervening. The reference for above / on or below / under each layer is described with reference to the drawings.

[0025] Also, expressions such as "first", "second", etc. are used only for the purpose of distinguishing a plurality of configurations and do not limit the order or other features between the configurations.

[0026] FIG. 4 is a configuration diagram illustrating a bag fastener manufacturing apparatus according to the present invention, FIG. 5 is a front view illustrating the bag fastener manufacturing apparatus according to the present invention, FIG. 6 is a plan view illustrating the bag fastener manufacturing apparatus according to the present invention, FIG. 7 is a perspective view illustrating an extrusion molding part of the bag fastener manufacturing apparatus according to the present invention, FIG. 8 is a cross-sectional view illustrating the extrusion molding part of the bag fastener manufacturing apparatus according to the present invention, FIG. 9 is a side view illustrating a supply mold of the extrusion molding part according to FIG. 7, FIG. 10 is a side view illustrating a mold frame mold of the extrusion molding part according to FIG. 7, FIG. 11 is a side view illustrating an extrusion mold of the extrusion molding part according to FIG. 7, FIG. 12 is a flowchart illustrating a method for manufacturing a bag fastener according to the present invention, FIG. 13 is a perspective view illustrating a frame extruded together with a fastener through the bag fastener manufacturing apparatus and method according to the present invention, FIG. 14 is a cross-sectional view illustrating the frame extruded together with the fastener through the bag fastener manufacturing apparatus and method according to the present invention, and FIG. 15 is a front view illustrating a connected state of fasteners manufactured through the bag fastener manufacturing apparatus and method according to the present invention.

[0027] As shown in FIGS. 4 to 6, the bag fastener manufacturing apparatus according to the present invention may include a raw material supply unit 100, an extrusion molding unit 200, a fastener supply unit 300, a cooling transfer unit 400, and a cutting unit 500.

[0028] The raw material supply unit 100 supplies a raw material for extruding a frame 20 that will have an opening part of the bag 10. At this time, as the raw material of the frame 20, at least one or more synthetic resins such as polycarbonate (PC), ABS, polypropylene (PP), polyurethane (PU), or aluminum (Al) can be used. More preferably, the raw material of the frame 20 can be used by mixing polycarbonate (PC) and ABS.

[0029] On the one hand, the raw material for extruding the frame 20 is a mixture of polycarbonate (PC) and ABS. At this time, the mixing ratio can be 6 - 7 parts by weight of polycarbonate (PC): 3 - 4 parts by weight of ABS. The higher the specific gravity of polycarbonate (PC), the stronger the strength will be.

[0030] Also, the melting temperature of the polycarbonate (PC) used as the raw material for the frame 20 is about 250 - 260 degrees Celsius, the melting temperature of ABS is about 180 degrees Celsius, and the melting temperature during the mixing of PC / ABS is about 220 - 230 degrees Celsius. And the melting temperature of the fastener cloth 31 is 260 degrees Celsius or higher. For this reason, by using a raw material mixture of PC and ABS for the frame 20 applied in the present invention, the fastener cloth 31 can be sandwiched and fixed inside the frame 20 without melting when the frame 20 is extruded through the extrusion molding part 200.

[0031] Referring to FIGS. 4 and 5, the raw material supply part 100 can include a raw material storage hopper 110 where the raw material is stored, and a raw material supply machine 120 connected to the raw material storage hopper 110 to melt the raw material stored in the raw material storage hopper 110 and supply it to the extrusion molding part 200. At this time, since the configuration and operating principle of the raw material supply machine 120 have already been widely used in extrusion molding machines, a detailed description thereof will be omitted.

[0032] The extrusion molding part 200 is connected to the raw material supply part 100 and is configured to extrude the raw material supplied from the raw material supply part 100 into the frame 20.

[0033] Referring to FIGS. 7 and 8, the extrusion molding part 200 can include a supply mold 210, a mold frame 220, and an extrusion mold 230.

[0034] Referring to FIG. 9, the supply mold 210 is connected to the raw material supply unit 100 to supply a raw material of synthetic resin or aluminum, and a fastener 30 can be supplied through the fastener supply unit 300. Therefore, the fastener cloth 31 of the fastener 30 can be positioned inside the raw material supplied to the supply mold 210.

[0035] At the same time, referring to FIG. 8, the supply mold 210 may be formed with a raw material injection port 211 through which a synthetic resin raw material is injected and penetrates through the front and back.

[0036] And the raw material injection ports 211 are formed with at least one or more, and different raw materials can be injected into each raw material injection port 211 in order to vary the hue and the like of the frame 20 to be extrusion molded.

[0037] Also, the supply mold 210 may be formed with a fastener inlet 212 for the fastener 30 to flow in through the fastener supply unit 300. At this time, as shown in FIG. 9, the fastener inlet 212 may be formed between the raw material injection ports 211 so that the fastener cloth 31 of the fastener 30 is sandwiched and fixed to the frame 20.

[0038] On the other hand, a film inlet 213 may be formed in the raw material injection port 211 for the film 40 wound around the film winding roller 50 to be coated on the surface of the frame 20. Therefore, when the synthetic resin raw material is injected and extrusion molded, the film 40 is supplied to the film inlet 213, and as shown in FIG. 14, 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 hues and patterns.

[0039] The mold frame 220 is connected to the supply mold 210 and can guide the raw material injected from the raw material supply unit 100 and the fastener 30 supplied from the fastener supply unit 300 to be sandwiched between the raw materials.

[0040] Referring to FIG. 10, the mold die 220 can have the raw material inlet 221 and the fastener inlet 222 connected to each other so that the fastener 30 can be fixed to the frame 20 which is extruded with the fastener cloth 31 flowing into the fastener inlet 212 sandwiched in the raw material injected into the raw material inlet 211 of the supply die 210. Thereby, when the raw material injected into the raw material inlet 221 is extruded into the frame 20, the fastener cloth 31 can be sandwiched and fixed inside the frame 20.

[0041] The extrusion die 230 can be connected to the mold die 220 and extruded so that the fastener cloth 31 of the fastener 30 is fixed to the frame 20.

[0042] Referring to FIG. 11, the extrusion die 230 can be formed with an extrusion opening 231 so that the frame 20 with the fastener 30 fixed with the fastener cloth 31 sandwiched in the raw material discharged through the mold die 220 can be extruded. On the other hand, in the extrusion opening 231, the raw material inlet 231a and the fastener inlet 231b are connected, and the raw material inlet 231a can be formed to be the same as the cross-sectional shape of the frame 20.

[0043] The fastener supply unit 300 supplies the fastener 30 to the extrusion unit 200 to fix the fastener 30 to the extruded frame 20. At this time, referring to FIG. 15, the fastener 30 is provided with the fastener cloth 31 fixed to the frames 20 on both sides, the tooth shape 32 is attached to each of the fastener cloths 31, and a slider 33 having a handle 34 can be provided to couple or separate the tooth shape 32 while moving forward or backward along the tooth shape 32.

[0044] Referring to FIGS. 5 and 6, the fastener supply unit 300 includes a support frame 310 provided on the side of the extrusion molding unit 200, a winding roller 320 connected to the support frame 310 for winding the fastener 30, a transfer roller 330 connected to the support frame 310 for transferring the fastener 30 wound on the winding roller 320 to the extrusion molding unit 200, and a drive belt 340 connected to the transfer roller 330 for rotating the transfer roller 330 to transfer the fastener 30. At this time, the drive belt 340 can be connected to a motor (not shown) and rotated by the drive of the motor.

[0045] The cooling transfer unit 400 cools and transfers the frame 20 that is extrusion-molded together with the fastener 30 in the extrusion molding unit 200. On the other hand, the inside of the cooling transfer unit 400 can be filled with cooling water for cooling the extrusion-molded frame 20.

[0046] The cutting unit 500 is associated with the cooling transfer unit 400 and cuts the frame 20 including the fastener 30 that has been cooled and transferred to a certain size.

[0047] By sandwiching and fixing the fastener cloth 31 inside the frame 20 extrusion-molded by the above-described apparatus, the fastener 30 is prevented from being separated or peeled off from the frame 20.

[0048] At the same time, the frame 20 with the fastener 30 attached, which is extrusion-molded through the extrusion molding unit 200 and cooled through the cooling transfer unit 400, can be manufactured at a length of approximately 1.5 to 2 m per minute. On the other hand, if the frame 20 is extrusion-molded at a rate of 1.5 m or less per minute, the productivity will decrease, and the extrusion molding will not be smoothly performed into the desired form due to the high heat of the extrusion molding unit 200. If the frame 20 is extrusion-molded at a rate of 2 m or more, smooth cooling will not be achieved during cooling through the cooling transfer unit 400, resulting in poor quality.

[0049] As shown in FIG. 12, the method for manufacturing a fastener for a bag according to an embodiment of the present invention first involves (a) supplying a raw material for extruding a frame 20 having an opening portion of the bag 10 to a raw material supply unit 100 (S100). At this time, the raw material can use at least one or more synthetic resins such as polycarbonate (PC), ABS, polypropylene (PP), polyurethane (PU), or aluminum (Al).

[0050] Then, (b) the raw material supplied to the raw material supply unit 100 is melted and injected into an extrusion molding unit 200 (S200).

[0051] At the same time, (c) when the raw material is injected into the extrusion molding unit 200 and the fastener 30 is supplied to the extrusion molding unit 200 (S300).

[0052] The raw material is injected into a raw material injection port 211 of the extrusion molding unit 200, the fastener 30 is supplied to a fastener inlet 212, and the fastener cloth 31 can be supplied so as to be sandwiched between the raw materials injected into the extrusion molding unit 200.

[0053] Also, (d) the raw material supplied to the extrusion molding unit 200 is extruded with the fastener cloth 31 of the fastener 30 connected thereto, and the fastener 30 can be fixed to the frame 20 and molded (S400).

[0054] The raw material and the fastener 30 are supplied to a supply mold 210 of the extrusion molding unit 200, and when the frame 20 is extruded through an extrusion mold 230, the frame 20 is extruded by the extrusion molding unit 200 with the fastener cloth 31 positioned between the raw materials, so that the fastener cloth 31 is sandwiched inside the frame 20 and the fastener 30 can be extruded in a state fixed to the frame 20.

[0055] Then, (e) with the fastener 30 fixed to the frame 20, the frame 20 that is extrusion-molded will be cooled by passing it through the cooling transfer unit 400 (S500). At this time, since the cooling transfer unit 400 is filled with cooling water and the frame 20 that is extrusion-molded and transferred is transferred in a state of being immersed in the cooling water, the cooling efficiency can be enhanced.

[0056] Thereafter, (f) the frame 20 with the fastener 30 fixed thereto that has passed through the cooling transfer unit 400 and been cooled will be cut to a certain size (S600).

[0057] As described above, when the raw material supplied to the raw material supply unit 100 is made to flow into the extrusion molding unit 200 in order to extrusion-mold the frame 20 to which the fastener 30 for opening the inside of the bag 10 is connected, the present invention supplies the fastener 30 inside the raw material injected into the extrusion molding unit 200.

[0058] And, while the fastener 30 is being supplied, since the frame 20 will be extrusion-molded by the extrusion molding unit 200, it will be molded in a state where the fastener cloth 31 is sandwiched between the frames 20.

[0059] Accordingly, by molding the frame 20 with the fastener 30 fixed to the frame 20 during the extrusion process, unlike the conventional method of fixing the fastener to the frame through separate operations such as sewing or using an adhesive, the fastener 30 is fixed to the frame 20 simultaneously with the extrusion molding of the frame 20, making the operation convenient.

[0060] Also, since the fastener cloth 31 is extrusion-molded in a state of being sandwiched between the frames 20, the fastener cloth 31 will not come off or be peeled from the frame 20 even under strong impacts, thus enhancing the quality of the bag 10 and enabling it to be used over a long period.

[0061] In the above detailed description of the present invention, only specific embodiments thereof have been described. However, it should be understood that the present invention is not limited to the specific forms mentioned in the detailed description, but rather includes all modifications, equivalents, and alternatives within the spirit and scope of the present invention as defined by the appended claims.

[0062] That is, the present invention is not limited to the specific embodiments and descriptions mentioned above, and any person having ordinary knowledge in the technical field to which the present invention pertains can make various modified implementations without departing from the gist of the present invention claimed in the claims, and such modifications are also within the protection scope of the present invention.

Explanation of Reference Numerals

[0063] 10: Bag 20: Frame 30: Fastener 31: Fastener Cloth 32: Tooth Shape 33: Slider 34: Handle 40: Film 50: Film Rewinding Roller 100: Raw Material Supply Section 110: Raw Material Storage Hopper 120: Raw Material Feeder 200: Extrusion Molding Section 210: Feeding Mold 211, 221, 231a: Raw Material Inlet 212, 222, 231b: Fastener Inlet 213: Film Inlet 220: Mold Frame 230: Extrusion Mold 231: Extrusion Molding Outlet 300: Fastener Supply Section 310: Support Frame 320: Rewinding Roller 330: Transfer Roller 340: Drive Belt 400: Cooling Transfer Section 500: Cutting Section

Claims

1. A raw material supply unit for supplying a raw material for forming a frame having an opening part of a bag; An extrusion molding unit for extruding the raw material supplied from the raw material supply unit; A fastener supply unit for supplying a fastener to the extrusion molding unit in order to fix the fastener to the extruded frame; and A cooling and transfer unit for cooling and transferring the frame extruded together with the fastener in the extrusion molding unit, The extrusion molding unit includes A supply mold into which the raw material of the frame and the fastener are supplied, A die frame for sandwiching a fastener cloth between the raw materials supplied by being connected to the supply mold, A bag fastener manufacturing apparatus including an extrusion die connected to the die frame and extruding the frame so that the fastener is fixed.

2. The bag fastener manufacturing apparatus according to claim 1, wherein the supply mold is formed with a raw material injection port into which the raw material of the frame is injected and a fastener inlet through which the fastener flows in.

3. The bag fastener manufacturing apparatus according to claim 2, wherein the fastener inlet is formed between the raw material injection ports so that the fastener can be sandwiched and fixed to the frame.

4. The bag fastener manufacturing apparatus according to claim 1, wherein the die frame is characterized in that the raw material injection port and the fastener inlet are connected so that the fastener cloth supplied to the fastener inlet can be sandwiched and extruded into the raw material injected into the raw material injection port of the supply mold.

5. The bag fastener manufacturing apparatus according to claim 1, wherein the extrusion die is formed with an extrusion molding port so that a frame in which the fastener cloth is sandwiched and the fastener is fixed can be extruded from the raw material discharged through the die frame.

6. (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 unit and injecting it into the extrusion molding unit; (c) Supplying a fastener to be fixed to the frame to the extrusion molding unit; (d) Extrusion molding in a state where a fastener cloth of the fastener is connected to the raw material supplied to the extrusion molding unit; and (e) Cooling the frame extruded with the fastener fixed while passing through the cooling transfer unit. In the step of supplying the fastener fixed to the frame (c) to the extrusion molding part, it is supplied so that a fastener cloth is sandwiched between the raw materials injected into the extrusion molding part. A method for manufacturing a fastener for a bag, characterized by this.

7. When the frame on which the fastener is fixed and extrusion molded is cooled while passing through the cooling transfer part (e), the method for manufacturing a fastener for a bag according to claim 6, further comprising the step of cutting (f) the frame cooled by passing through the cooling transfer part into a constant size.

8. In the step of extrusion molding in a state where the fastener cloth of the fastener is connected to the raw material supplied to the extrusion molding part (d), the fastener is fixed to the frame by the extrusion molding part with the fastener cloth positioned between the raw materials. The method for manufacturing a fastener for a bag according to claim 6, characterized by being extrusion molded in a state.

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