KR20050096543A - A manufacturing method for case - Google Patents

Abstract

The present invention relates to a case for storing the article and a method of manufacturing the same, and more particularly, the artificial leather shell is heat-bonded to the outside of the case even without using a separate adhesive, so that the operation of the outer shell is made quick and easy, and the convenience of the work is easy. This invention relates to one invention that has been greatly enhanced to allow significant labor cost savings.

The present invention described above, the step of punching the metal plate with a press to form the upper case (10a) and the lower case (10b); Punching one side of the upper and lower cases 10a and 10b with a press to form the bent pieces 11 that are bent inwardly; Protruding portions 51 are formed on the upper portion of the upper portion, and upper and lower cases 10a and 10b are formed on the protruding portions 51 of the support 50 in which the suction holes 52 are continuously circumferentially formed around the protruding portion 51. Putting the upper and lower cases 10a and 10b on the protrusions 51 to fix the upper and lower cases 10a and 10b; Placing a support 50 on the upper surface of the vacuum forming chamber 60 to which a number of through holes 61 are drilled, and a suction hose 62a of the vacuum pump 62 is connected to the upper surface thereof; Placing the outer skin 30 on which the artificial leather 32 is attached to the upper portion of the synthetic resin sheet 31 on the upper portion of the support 50; Heating the heater 70 mounted above the vacuum forming chamber 60; Raising the vacuum forming chamber 60 to bring the shell 30 close to the heater 70 so that the synthetic resin sheet 31 is melted; By operating the vacuum pump 62, the suction force formed in the chamber 60 is transmitted to the shell 30 through the suction hole 52 drilled through the through holes 61 and the support 50, and the molten synthetic resin sheet 31 is melted. ) Is thermally bonded while being in close contact with the outside of the upper and lower cases (10a) (10b) by the suction force of the vacuum pump 62; Separating the outer shell 30 to which the upper and lower cases 10a and 10b are thermally bonded after the lowering of the chamber 60 from the support 50; Punching the outer shell 30 with a press to cut along the circumference of the upper and lower cases 10a and 10b; After fixing the extension piece 30a of the outer shell 30 formed along the circumference of the upper and lower cases 10a and 10b inward, the fixing piece 11 bent into the upper and lower cases 10a and 10b. Engaging the openings 21 drilled on both sides of the hinge 20 so that the upper and lower cases 10a and 10b can be opened and closed by the hinge 20 by folding the fixing pieces 11; Inserting the support plate 40 into the upper and lower cases 10a and 10b, respectively, can be achieved by the manufacturing method of the article storage case, characterized in that consisting of the step of fixing the folded extension piece (30a). It is.

Description

Case for storing goods and its manufacturing method {a manufacturing method for case}

The present invention relates to a case for storing the article and a method of manufacturing the same, and more particularly, the artificial leather shell is heat-bonded to the outside of the case even without using a separate adhesive, so that the operation of the outer shell is made quick and easy, and the convenience of the work is easy. This invention relates to one invention that has been greatly enhanced to allow significant labor cost savings.

In general, the case for packing expensive precious metals such as rings, necklaces, and earrings among the case for storing goods is mainly attached to the outer surface of the case with artificial leather, so that the overall appearance of the case can be kept beautiful. .

As a method of covering the outer shell of the case, a method of applying a separate adhesive to the outer shell of the case and then attaching the outer shell to the case while being evenly spread is used.

However, as described above, the work of attaching the artificial leather evenly by spreading the artificial leather evenly by applying the adhesive to the case is dependent on the manual work because all the work required for the adhesion of the skin is not only difficult to adhere the skin but also takes a considerable time. It was a major reason for raising the manufacturing cost of the storage case.

In addition, the adhesive used for the adhesion of the outer skin mainly due to the use of a lot of industrial bonds cause a headache or hallucination state for a long time, resulting in an end to the health of the worker.

The present invention has been made in view of the above problems, the purpose of which is that the artificial leather shell is heat-bonded to the outside of the case even without using a separate adhesive, thereby greatly improving the convenience of the work while making the adhesion of the outer skin quick and easy It is to provide a case for storing goods and a method of manufacturing the same that can significantly reduce labor costs.

Features of the present invention for achieving the above object, forming a top case (10a) and a lower case (10b) by punching a metal plate with a press; Punching one side of the upper and lower cases 10a and 10b with a press to form the bent pieces 11 that are bent inwardly; Protruding portions 51 are formed on the upper portion of the upper portion, and upper and lower cases 10a and 10b are formed on the protruding portions 51 of the support 50 in which the suction holes 52 are continuously circumferentially formed around the protruding portion 51. Putting the upper and lower cases 10a and 10b on the protrusions 51 to fix the upper and lower cases 10a and 10b; Placing a support 50 on the upper surface of the vacuum forming chamber 60 to which a number of through holes 61 are drilled, and a suction hose 62a of the vacuum pump 62 is connected to the upper surface thereof; Placing the outer skin 30 on which the artificial leather 32 is attached to the upper portion of the synthetic resin sheet 31 on the upper portion of the support 50; Heating the heater 70 mounted above the vacuum forming chamber 60; Raising the vacuum forming chamber 60 to bring the shell 30 close to the heater 70 so that the synthetic resin sheet 31 is melted; By operating the vacuum pump 62, the suction force formed in the chamber 60 is transmitted to the shell 30 through the suction hole 52 drilled through the through holes 61 and the support 50, and the molten synthetic resin sheet 31 is melted. ) Is thermally bonded while being in close contact with the outside of the upper and lower cases (10a) (10b) by the suction force of the vacuum pump 62; Separating the outer shell 30 to which the upper and lower cases 10a and 10b are thermally bonded after the lowering of the chamber 60 from the support 50; Punching the outer shell 30 with a press to cut along the circumference of the upper and lower cases 10a and 10b; After fixing the extension piece 30a of the outer shell 30 formed along the circumference of the upper and lower cases 10a and 10b inward, the fixing piece 11 bent into the upper and lower cases 10a and 10b. Engaging the openings 21 drilled on both sides of the hinge 20 so that the upper and lower cases 10a and 10b can be opened and closed by the hinge 20 by folding the fixing pieces 11; Inserting the support plate 40 into the upper and lower cases 10a and 10b, respectively, can be achieved by the manufacturing method of the article storage case, characterized in that consisting of the step of fixing the folded extension piece (30a). It is.

Hereinafter, described in detail by the accompanying drawings a preferred embodiment for achieving the above object is as follows.

Example

As shown in Figure 1 to Figure 8, by punching the metal plate with a press to form the upper case (10a) and the lower case (10b) of the container form, respectively.

The above-mentioned upper and lower cases 10a and 10b may be formed by punching a metal plate with a press to cut the sheet to form the outer shape of the cases, and then bending the cut metal plate with a press to form a container. In the present invention, when the metal plate is punched, the case may be temporarily formed by simultaneously performing a bending operation, and the present invention is not limited to the number of steps for forming the case.

Subsequently, by punching one side of the upper and lower cases 10a and 10b with a mold mounted on the press, the sidewalls are bent while being cut inward, so that the plurality of fixing pieces 11 are upper and lower cases 10a and 10b. It was molded so as to be drawn inward of.

Subsequently, the upper and lower cases 10a and 10b were placed on the upper protrusions 51 of the support 50 so that the upper and lower cases 10a and 10b were fixed to be covered by the protrusions 51.

The protrusions 51 arranged horizontally and vertically on the support 50 are formed to correspond to the inner shapes of the upper and lower cases 10a and 10b, and the suction holes 52 are continuously formed around the protrusions 51. It is opened so that the air around the protrusion 51 can be sucked.

Subsequently, the support 50 on which the upper and lower cases 10a and 10b were placed was placed on the vacuum forming chamber 60.

In the upper surface of the chamber 60, a myriad of holes 61 are drilled, and a lower portion of the chamber 60 is connected to the suction hose 62a of the vacuum pump 62, and a space part is formed inside the chamber 60. It is.

Subsequently, the shell 30 was placed on top of the support 50. The outer shell 30 is made of a synthetic leather 32 is bonded to the upper portion of the synthetic resin sheet (31).

The outer shell 30 may be configured in various ways, but after applying an adhesive to the surface of the synthetic resin sheet 31, spraying a myriad of hairs in a state in which static electricity is generated on the synthetic resin sheet 31 Thus, it is preferable that the synthetic leather sheet 31 is composed of artificial leather 32 having a form such as cotton wool with a hairy layer adhered thereto.

In addition, the outer shell 30 is configured to be transported and placed on an upper portion of the support 50 in a state of being wound on a reel 33 mounted on one side of the chamber 60.

Subsequently, the heater 70 mounted on the upper portion of the vacuum forming chamber 60 generates heat and at the same time, the chamber 60 is raised so that the shell 30 is close to the heater 70 while heat of 300 to 400 ° C. The synthetic resin sheet 31 was slightly melted by being transferred to the synthetic resin sheet 31 for ˜7 seconds.

The lower part of the chamber 60 is equipped with a first cylinder (63) to raise the piston rod of the first cylinder (63) is configured to automatically lift in the state in which the chamber 60 is supported on both guide rods (64) It is.

The heater 70 is mounted inside the movable base 71, and a second cylinder 72 is mounted at the rear of the movable base 71 to operate the piston rod of the second cylinder 72 to operate the heater 70. The movable table 71 is automatically moved forward and backward in a state supported by both guide rails 73.

Subsequently, when the synthetic resin sheet 31 was slightly melted by the above-described process, the vacuum pump 62 was operated to form a strong suction force inside the chamber 60 and at the same time, the suction force was passed through the through holes 61 and the support 50. The melted synthetic resin sheet 31 is transferred to the outer shell 30 through the suction hole 52 which is drilled on the outside of the upper and lower cases 10a and 10b while being strongly pulled by the suction force of the vacuum pump 62. Closely adhered and firmly heat bonded.

Subsequently, the chamber 60 was lowered by operating the first cylinder 63, and the upper and lower cases 10a and 10b were separated from the support 50 by the heat-sealed outer shell 30.

At this time, it is preferable that the movable table 71 equipped with the heater 70 also operates the second cylinder 72 to reverse the outer shell 30 to facilitate the separation operation.

Subsequently, the separated outer shell 30 was cut by the size of the support 50 and placed on a press mold and punched to be cut along the circumference of the upper and lower cases 10a and 10b.

At this time, the cut of the outer shell 30 is larger than the upper and lower cases (10a, 10b) to cut the extension piece (30a) is preferably formed so that the edge portion is preferably cut diagonally to be folded.

Subsequently, the extension piece 30a of the outer shell 30 formed along the circumference of the upper and lower cases 10a and 10b is folded inward, and then the fixing piece bent into the upper and lower cases 10a and 10b. 11) to fold the fixing piece 11 by inserting the coupling holes 21 drilled on both sides of the hinge 20 so that both sides of the hinge 20 are inside the upper case 10a and the lower case 10b, respectively. The upper and lower cases 10a and 10b were coupled to each other so as to be fixed by the hinge 20.

Subsequently, the support plate 40 was inserted into the upper and lower cases 10a and 10b to fix the folded extension piece 30a, thereby completing the article storage case 10.

The support plate 40 is preferably firmly fixed to the inside of the upper and lower cases 10a and 10b by using an adhesive tape 42 or an adhesive. However, even if a separate adhesive or adhesive tape 42 is not used, the support plate 40 is inserted and fixed while being in close contact with the inside of the upper and lower cases 10a and 10b. It is not limited to.

Guide grooves are formed in the support plate 40 to stably support and store glasses or precious metal stored in the case 10, and in some cases, a hook piece or a fixing band in the support plate 40. The back is formed so that it can stably fix rings, necklaces, and earrings.

In addition, although the case 10 is described as being formed of a metal plate, in some cases, the case 10 may be formed by heat-resistant synthetic resin and the like, so that the shell 30 may be thermally bonded to the case 10. It is not limited to material of).

According to the present invention made of the above-described manufacturing method, the synthetic resin sheet 31 formed in the outer shell 30 is melted by the heater 70, and the upper and lower cases 10a and 10b are externally caused by the suction force of the vacuum pump 62. Since the outer skin 30 is automatically adhered to the surface while being adhered to the surface, the outer skin 30 is automatically bonded, and thus, the outer skin 30 can be easily and quickly bonded, and there is no need to use a separate adhesive. As the time required for the attachment work of (30) can be minimized, a considerable labor cost can be saved, which can not only increase the external competitiveness of the case for storing goods, but also cause headaches or hallucinations by using industrial adhesives. Conventional problems such as harming the health of the will be completely solved.

In addition, a large number of upper and lower cases 10a and 10b may be temporarily placed on the protrusions 51 arranged horizontally and vertically on the support 50, and may be thermally bonded in a large amount by a single process as well as adhesion. The devices have the advantage of being able to maximize the productivity of the product storage case because the automated equipment is capable of mass production.

On the other hand, the article storage case 10 completed by the manufacturing method is the outer case 30, the artificial leather 32 is bonded to the surface of the synthetic resin sheet 31 on the outside of the upper case (10a) and the lower case (10b). ) Are bonded to the fixing holes 11 which are opened on both sides of the hinge 20 in the fixing pieces 11 protruding into the upper and lower cases 10a and 10b, respectively, and the fixing pieces 11 respectively. The hinges 20 are folded and fixed so as to be opened and closed, and the extension pieces 30a formed around the outer shell 30 are folded into the upper and lower cases 10a and 10b. It is configured to be fixed by the support plates 40 inserted into the cases (10a, 10b).

A continuous corrugated rib 41 is formed around the side wall of the support plate 40 in the horizontal direction, and the corrugated rib 41 strengthens the circumference of the side wall of the support plate 40 to upper and lower cases 10a and 10b. The extension piece 30a of the outer shell 30 folded in the inserted state can be more firmly fixed.

In some cases, the pressing piece 12 bent while being cut into the inner walls of the upper and lower cases 10a and 10b is formed to protrude inward, and the pressing piece 12 is extended as the extension piece 30a is folded. When penetrating 30a, the pressing piece 12 is folded into the inner walls of the upper and lower cases 10a and 10b so that the extension piece 30a is fixed so that the extension piece 30a can be effectively used even without a separate adhesive. It can be fixed.

The hinge 20 may be configured to allow the upper and lower cases 10a and 10b to be elastically closed by using a limit critical angle at which the leaf spring 22 is mounted and the leaf spring 22 is bent.

Although the preferred embodiments of the present invention have been illustrated and described above, the present invention is not limited to the above-described embodiments, and the present invention is not limited to the above-described embodiments without departing from the spirit of the present invention as claimed in the claims. Various modifications can be made by those skilled in the art, and such modifications are intended to fall within the scope of the appended claims.

The present invention as described above, the synthetic resin sheet 31 formed in the outer shell 30 is melted by the heater 70 by the suction force of the vacuum pump 62 of the upper and lower cases (10a) (10b) Since the outer skin 30 is automatically bonded to the outer surface while being in close contact with the outer surface, there is an advantage that the outer skin 30 is quickly and easily bonded, and at the same time, there is no need to use a separate adhesive. As the time required for the attachment work of (30) can be minimized, considerable labor costs can be saved, and the high quality of the exterior can be achieved by not only enhancing the external competitiveness of the storage case, but also by artificial leather bonded to the outside of the metal cases. It is possible to provide a case for storing the goods.

1 is a front cross-sectional view illustrating an embodiment of the present invention,

Figure 2 is a side cross-sectional view illustrating an embodiment of the present invention,

3A to 3K are cross-sectional views sequentially listing the manufacturing process of the article storage case according to the present invention;

4A to 4C are cross-sectional views sequentially listing the steps of fixing the outer shell to the outer surface of the case while the pressing pieces formed on the case of the present invention are folded;

5 is an exploded perspective view illustrating an embodiment of the present invention;

6 is a perspective view illustrating one embodiment of the present invention;

7 is an enlarged cross-sectional view of a part of the shell according to the present invention;

8 is a partially enlarged cross-sectional view illustrating another embodiment of the shell according to the present invention.

Explanation of symbols on main parts of drawing

10: case 10a: upper case

10b: lower case 11: fixing piece

12: pressing 20: hinge

21: coupling hole 22: leaf spring

30: outer shell 30a: extension

31: synthetic resin sheet 32: artificial leather

33: reel 40: support plate

41: rib 50: support

51: protrusion 52: suction hole

60: chamber 61: through hole

62: vacuum pump 62a: suction hose

63: first cylinder 64: guide rod

70: heater 71: moving table

72: second cylinder 73: guide rail

Claims (5)

Forming an upper case 10a and a lower case 10b by punching a metal plate with a press; Punching one side of the upper and lower cases 10a and 10b with a press to form the bent pieces 11 that are bent inwardly; Protruding portions 51 are formed on the upper portion of the upper portion, and upper and lower cases 10a and 10b are formed on the protruding portions 51 of the support 50 in which the suction holes 52 are continuously circumferentially formed around the protruding portion 51. Putting the upper and lower cases 10a and 10b on the protrusions 51 to fix the upper and lower cases 10a and 10b; Placing a support 50 on the upper surface of the vacuum forming chamber 60 to which a number of through holes 61 are drilled, and a suction hose 62a of the vacuum pump 62 is connected to the upper surface thereof; Placing the outer skin 30 on which the artificial leather 32 is attached to the upper portion of the synthetic resin sheet 31 on the upper portion of the support 50; Heating the heater 70 mounted above the vacuum forming chamber 60; Raising the vacuum forming chamber 60 to bring the shell 30 close to the heater 70 so that the synthetic resin sheet 31 is melted; By operating the vacuum pump 62, the suction force formed in the chamber 60 is transmitted to the shell 30 through the suction hole 52 drilled through the through holes 61 and the support 50, and the molten synthetic resin sheet 31 is melted. ) Is thermally bonded while being in close contact with the outside of the upper and lower cases (10a) (10b) by the suction force of the vacuum pump 62; Separating the outer shell 30 to which the upper and lower cases 10a and 10b are thermally bonded after the lowering of the chamber 60 from the support 50; Punching the outer shell 30 with a press to cut along the circumference of the upper and lower cases 10a and 10b; After fixing the extension piece 30a of the outer shell 30 formed along the circumference of the upper and lower cases 10a and 10b inward, the fixing piece 11 bent into the upper and lower cases 10a and 10b. Engaging the openings 21 drilled on both sides of the hinge 20 so that the upper and lower cases 10a and 10b can be opened and closed by the hinge 20 by folding the fixing pieces 11; Inserting the support plate 40 into the upper, lower cases (10a) (10b), respectively, the method of manufacturing a case for storing the article, characterized in that consisting of the step of fixing the folded piece (30a). The method of claim 1, Before carrying out the step of placing the outer shell 30 on the support 50, an adhesive is applied to the surface of the synthetic resin sheet 31, and countless hairs are generated in a state in which static electricity is generated in the synthetic resin sheet 31. The fuzzing step further comprises a molding step of the outer shell 30, the outer surface of the synthetic resin sheet 31 adhered to the surface of the synthetic resin sheet 31 so that the outer shell 30 is made of artificial leather (32) Method for manufacturing a case for storing goods, characterized in that. The outer case 30 of which the artificial leather 32 is bonded to the surface of the synthetic resin sheet 31 is heat-bonded to the outside of the upper case 10a and the lower case 10b, and the upper and lower cases 10a and 10b are inside. Combination holes (21) drilled on both sides of the hinge 20 are inserted into each of the fixing pieces 11 protruding into the fixing pieces 11 are folded so that the hinge 20 is fixed and opened, Support plates 40 inserted into the upper and lower cases 10a and 10b while the extension pieces 30a formed around the outer shell 30 are folded into the upper and lower cases 10a and 10b. Item storage case characterized in that configured to be fixed by. The method of claim 3, wherein A continuous corrugated rib 41 is formed around the side wall of the support plate 40 in the horizontal direction, and the corrugated rib 41 strengthens the circumference of the side wall of the support plate 40 to upper and lower cases 10a and 10b. The case for storing goods, characterized in that the extension piece (30a) of the outer shell (30) folded in the state inserted in the field can be more firmly fixed. The method according to claim 3 or 4, The pressing piece 12 bent while being cut on the inner walls of the upper and lower cases 10a and 10b is formed to protrude inward, and when the pressing piece 12 penetrates while the extension piece 30a is folded, the pressing piece 12 passes through. ), The case for storing goods, characterized in that the extension piece (30a) is fixed by folding the inner wall of the upper, lower cases (10a) (10b).