Metal decorative strip for luggage and its manufacturing process and manufacturing tooling

Abstract

The present invention belongs to the field of mechanical processing technology. The present invention provides a metal decorative strip, including a decorative sheet and a fixing sheet, wherein the fixing sheet and the decorative sheet are bonded together, and a nut is provided on a side of the fixing sheet away from the decorative sheet, and the nut extends into the box body and is threadedly connected with a bolt on the inner side of the box body, thereby fixing the decorative sheet on the box body to play the role of decorating luggage; the present invention provides a manufacturing process and manufacturing tooling for metal decorative strips for luggage, which not only greatly improves the manufacturing efficiency of the metal decorative strips, but also improves the finished product quality of the metal decorative strips, thereby ensuring reliable and uniform finished product quality.

Description

Technical Field

[0001] The invention belongs to the technical field of mechanical processing, and in particular relates to a metal decorative strip for luggage and a manufacturing process and a manufacturing tool thereof. Background Art

[0002] A suitcase refers to a box with a pull rod and rollers, which can be easily pushed or pulled, so it saves effort and is easy to use. It can carry more daily necessities and clothes at one time. It is a must-have tool for business travelers or tourists.

[0003] With the improvement of living standards, people are no longer satisfied with the basic functional needs of suitcases, but also pay attention to the external aesthetics of suitcases. Existing suitcases usually print patterns on the outer surface to increase the aesthetics of the suitcases, which indeed makes the suitcases show a variety of beauty and the personality and aesthetic taste of the owner. However, some users think that the prints are too fancy and prefer a "light luxury beauty".

[0004] For example, a metal decorative strip is installed on one side of the top of the suitcase. The curvature of the metal decorative strip fits the circumferential surface of the top of the suitcase. The brand name and logo of the suitcase are engraved on the metal decorative strip, and then the surface is plated with color. Because it is made of metal, it has a luster and is strong and durable. With the addition of color, it is neither too fancy nor too fancy. It can show the high-quality beauty of the suitcase and show the light luxury beauty. However, there is currently no mature and complete manufacturing process for metal decorative strips for luggage, and there is no special tooling for making metal decorative strips, which leads to very low efficiency in making metal decorative strips. In addition, the quality of the made metal decorative strips is also uneven because there is no unified fixture and mold to assist. Summary of the invention

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the fact that there is currently no mature and complete metal decorative strip manufacturing process, and there is no special tooling to produce metal decorative strips for luggage, resulting in very low efficiency in the production of metal decorative strips, and the quality of the manufactured metal decorative strips is uneven due to the lack of unified fixtures and molds to assist.

[0006] In order to solve the above technical problems, the present invention provides a metal decorative strip for luggage, including a linear metal decorative strip, a rear left wing metal decorative strip and a rear right wing metal decorative strip; the linear metal decorative strip is composed of a linear decorative sheet and a linear fixing sheet, a first nut is fixedly provided on one side of the linear fixing sheet, and the side of the linear fixing sheet facing away from the first nut is bonded to the linear decorative sheet; the rear left wing metal decorative strip is composed of a rear left wing decorative sheet and a rear left wing fixing sheet, a second nut is fixedly provided on one side of the rear left wing decorative sheet, and the side of the rear left wing decorative sheet facing away from the second nut is bonded to the rear left wing fixing sheet; the rear right wing metal decorative strip is composed of a rear right wing decorative sheet and a rear right wing fixing sheet, a third nut is fixedly provided on one side of the rear right wing fixing sheet, and the side of the rear right wing fixing sheet facing away from the third nut is bonded to the rear right wing decorative sheet.

[0007] The present invention provides a process for manufacturing a metal decorative strip for luggage, comprising the following steps:

[0008] S1: Use a special stamping die to stamp out a flat blank assembly from a metal sheet;

[0009] S2: Use a special chamfering fixture to chamfer the edge of the plane blank assembly obtained in S1 to obtain a smooth plane blank assembly;

[0010] S3: using a special bending die to bend the flat blank assembly obtained in S2, so that the linear decorative piece, the rear left wing decorative piece and the rear right wing decorative piece are all bent into shape;

[0011] S4: Anodizing the bent blank assembly obtained in S3;

[0012] S5: cutting the anodized blank assembly obtained in S4, that is, cutting the linear decorative sheet and the connecting portion, cutting the rear left wing decorative sheet and the connecting portion, and cutting the rear right wing decorative sheet and the connecting portion to obtain independent parts: the linear decorative sheet, the rear left wing decorative sheet, the rear right wing decorative sheet and the connecting portion, and discarding the connecting portion, and only putting the linear decorative sheet, the rear left wing decorative sheet, and the rear right wing decorative sheet into the subsequent processing technology;

[0013] S6: clamping and placing the linear decorative sheet, the rear left wing decorative sheet and the rear right wing decorative sheet cut in S5 on a cutting and chamfering device, the cutting and chamfering device limits the linear decorative sheet, the rear left wing decorative sheet and the rear right wing decorative sheet in a horizontal direction, and then chamfering the cutting edges of the linear decorative sheet, the rear left wing decorative sheet and the rear right wing decorative sheet by using the cutting and chamfering device;

[0014] S7: A special bonding device is used to bond the cut and chamfered linear decorative sheet, rear left wing decorative sheet and rear right wing decorative sheet in S6 to a fixing sheet of the same shape and size to form a linear metal decorative strip, a rear left wing metal decorative strip and a rear right wing metal decorative strip.

[0015] The present invention provides a tool for making metal decorative strips for luggage, including a stamping die, wherein the stamping die includes a male die and a female die plate which are relatively arranged in an upper and lower direction, and the female die plate is provided with a stamping channel. The cross-sectional shape of the male die is the same as the cross-sectional shape of the stamping channel, and the male die is smaller than or equal to the stamping channel. The male die can be quickly moved toward the female die plate so that the male die can quickly enter the stamping channel, and the male die can be moved in a direction away from the female die plate to reset.

[0016] Preferably, it includes a chamfering fixture, which includes a workbench, a fixture, a plurality of first positioning columns and a plurality of second positioning columns, the fixture includes a first fixture, a second fixture, a third fixture, a fourth fixture and a fifth fixture, the first fixture and the second fixture are respectively arranged at the two ends of the left half of the workbench, the third fixture and the fourth fixture are respectively arranged at the two ends of the right half of the workbench, the fifth fixture is arranged at the center of the right half of the workbench, the left half of the workbench is distributed with a plurality of first positioning columns, and the right half of the workbench is distributed with a plurality of second positioning columns.

[0017] Preferably, it includes a bending forming mold, which includes a lower pressure block, a pressure block and a placing platform, the lower pressure block is arranged at the top, the pressure block and the placing platform are arranged at the bottom, a recess is provided at the center of the pressure block, the bottom of the placing platform is fixedly arranged on the inner wall of the recess, the top surface of the placing platform is flush with the top surface of the pressure block, the lower pressure block can be pressed on the pressure block and the placing platform or rise and reset, both ends of the placing platform are spaced from both side walls of the recess, the bottom surface of the lower pressure block is provided with a first inclined table surface and a second inclined table surface arranged front and back, the top surface of the pressure block is provided with a third inclined table surface and a fourth inclined table surface arranged front and back, the first inclined table surface can fit with the third inclined table surface, and the second inclined table surface can fit with the fourth inclined table surface.

[0018] Preferably, it includes a slitting and chamfering device, which includes a base, a chamfering processing device, a first embedded positioning seat and a second embedded positioning seat, the chamfering processing device is fixed on the base, the first embedded positioning seat and the second embedded positioning seat are independent bodies, the first embedded positioning seat can accommodate and position the linear decorative piece, the second embedded positioning seat can accommodate and position the rear left wing decorative piece and the rear right wing decorative piece, and the chamfering processing device can chamfer the slitting edges of the linear decorative piece, the rear left wing decorative piece and the rear right wing decorative piece.

[0019] Preferably, it includes a fitting device, which includes a pressing portion and a limiting accommodating platform distributed up and down, the limiting accommodating platform is fixed on the worktable, and includes a first accommodating seat, a second accommodating seat and a third accommodating seat, the pressing portion is provided with a first fixing portion, a second fixing portion and a third fixing portion, the position of the first accommodating seat corresponds to the position of the first fixing portion, the position of the second accommodating seat corresponds to the position of the second fixing portion, the position of the third accommodating seat corresponds to the position of the third fixing portion, the first accommodating seat can accommodate and limit the linear decorative piece, the second accommodating seat can accommodate and limit the rear left wing decorative piece, the third accommodating seat can accommodate and limit the rear right wing decorative piece, the first fixing portion can magnetically attract the linear fixing piece, the second fixing portion can magnetically attract the rear left wing fixing piece, the third fixing portion can magnetically attract the rear right wing fixing piece, the pressing portion can be moved downward to be pressed on the top surface of the limiting accommodating platform, and the pressing portion can be moved upward to be reset and separated from the limiting accommodating platform.

[0020] The technical solution of the present invention has the following beneficial effects:

[0021] The present invention provides a metal decorative strip, comprising a decorative sheet and a fixing sheet, which are bonded together, and a nut is provided on a side of the fixing sheet away from the decorative sheet, the nut extends into a box body, and is threadedly connected with a bolt on the inner side of the box body, thereby fixing the decorative sheet on the box body, and playing the role of decorating luggage; the present invention provides a manufacturing process of a metal decorative strip for luggage and a manufacturing tool for the metal decorative strip, which not only greatly improves the manufacturing efficiency of the metal decorative strip, but also improves the finished product quality of the metal decorative strip, and ensures that the finished product quality is reliable and uniform. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 It is a schematic diagram of the structure of the metal decorative strip of the present invention;

[0024] Figure 2 This is a three-dimensional diagram of the appearance of the stamping die of the present invention;

[0025] Figure 3 It is a cross-sectional view of the stamping die of the present invention;

[0026] Figure 4 Schematic diagram of the positional relationship between the male die and the female die of the stamping die of the present invention;

[0027] Figure 5 It is a three-dimensional appearance schematic diagram of the chamfering fixture of the present invention;

[0028] Figure 6 A top view of the chamfering fixture of the present invention;

[0029] Figure 7 This is a schematic diagram of the first-view stereoscopic appearance of the bending forming mold of the present invention;

[0030] Figure 8 A schematic diagram of the third perspective appearance of the bending and forming mold of the present invention;

[0031] Fig. 9 It is a first-view stereoscopic schematic diagram of the bending forming die of the present invention without the lower pressing block (a schematic diagram of the change of the blank from a flat surface to a bending process);

[0032] Fig.10 It is a stereoscopic schematic diagram from a second perspective of the bending forming mold of the present invention without the lower pressing block;

[0033] Fig.11 It is a three-dimensional schematic diagram of the lower pressing block of the bending forming mold of the present invention;

[0034] Fig.12 It is a first-view stereoscopic schematic diagram of the slitting and chamfering device of the present invention;

[0035] Fig.13 A second perspective perspective schematic diagram of the slitting and chamfering device of the present invention;

[0036] Fig.14 It is a first-view overall schematic diagram of the laminating device of the present invention;

[0037] Fig.15 is a perspective schematic diagram of the laminating device of the present invention from a second viewing angle;

[0038] Fig.16 It is a three-dimensional schematic diagram of a magnetic fixing sheet of a lower pressing part of the laminating device of the present invention;

[0039] Fig.17 It is a three-dimensional schematic diagram of a limiting accommodation platform of the laminating device of the present invention;

[0040] Explanation of reference numerals: 1. Linear metal decorative strip; 11. Linear decorative sheet; 12. Linear fixing sheet; 13. First nut; 2. Rear left wing metal decorative strip; 21. Rear left wing decorative sheet; 22. Rear left wing fixing sheet; 23. Second nut; 3. Rear right wing metal decorative strip; 31. Rear right wing decorative sheet; 32. Rear right wing fixing sheet; 33. Third nut; 4. Stamping die; 41. Punch; 42. Concave die; 421. Stamping channel; 5. Chamfering fixture; 51. Workbench; 521. First fixture; 522. Second fixture; 523. Third fixture; 524. Fourth fixture; 525. Fifth fixture; 53. First positioning column; 54. Second positioning column; 6. Bending and forming die; 61. Lower pressing block; 611. First inclined table surface; 612. Second inclined table surface; 62. Pressure block; 621. Notch; 622. Third inclined table surface; 623. Fourth inclined table surface; 63. Placement platform; 7. Cutting and chamfering device; 71. Base; 72. Chamfering processing device; 73. First embedded positioning seat; 74. Second embedded positioning seat; 8. Fitting device; 81. Pressing part; 811. First fixing part; 812. Second fixing part; 813. Third fixing part; 82. Positioning and accommodating platform; 821. First accommodating seat; 822. Second accommodating seat; 823. Third accommodating seat. DETAILED DESCRIPTION

[0041] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0043] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0045] like Figure 1 As shown, the present invention provides a metal decorative strip for luggage, including a linear metal decorative strip 1, a rear left wing metal decorative strip 2 and a rear right wing metal decorative strip 3; the linear metal decorative strip 1 is composed of a linear decorative sheet 11 and a linear fixing sheet 12, a first nut 13 is fixedly provided on one side of the linear fixing sheet 12, and the side of the linear fixing sheet 12 facing away from the first nut 13 is bonded to the linear decorative sheet 11; the rear left wing metal decorative strip 2 is composed of a rear left wing decorative sheet 21 and a rear left wing fixing sheet 22, a second nut 23 is fixedly provided on one side of the rear left wing decorative sheet 21, and the side of the rear left wing decorative sheet 21 facing away from the second nut 23 is bonded to the rear left wing fixing sheet 22; the rear right wing metal decorative strip 3 is composed of a rear right wing decorative sheet 31 and a rear right wing fixing sheet 32, a third nut 33 is fixedly provided on one side of the rear right wing fixing sheet 32, and the side of the rear right wing fixing sheet 32 ​​facing away from the third nut 33 is bonded to the rear right wing decorative sheet 31.

[0046] The linear metal decorative strip 1 is fixed on the front side of the top of the box, and the rear left wing metal decorative strip 2 and the rear right wing metal decorative strip 3 are fixed on the rear side of the top of the box. When the metal decorative strip is fixed on the box, the decorative sheet faces away from the box, while the fixing sheet faces the box. The nut on the fixing sheet is inserted into the through hole on the top of the box, and then the bolt is put into the inner side of the box and threadedly connected with the nut on the fixing sheet, so that the fixing sheet is fixed on the box. Finally, the metal decorative strip is fixed on the box, and the decorative sheet faces outward. Since the surface is colored and engraved with hollow words and logos, it is more beautiful and is mainly used for decoration.

[0047] The present invention also provides a process for manufacturing a metal decorative strip for luggage, comprising the following steps:

[0048] S1. Use the stamping die 4 to punch out a flat blank assembly from the metal sheet. The flat blank assembly includes a linear decorative piece 11, a rear left wing decorative piece 21, a rear right wing decorative piece 31 and a connecting portion. The connecting portion is located in the middle and is triangular. The three corners of the connecting portion respectively fix the linear decorative piece 11, the rear left wing decorative piece 21 and the rear right wing decorative piece 31, connecting them into a whole, which is convenient for the subsequent steps S2, S3, and S4, so that the steps S2-S4 can be completed as a whole at one time without processing each component separately, thereby improving the processing efficiency.

[0049] S2, using a special chamfering fixture 5 to chamfer all edges of the planar blank assembly obtained in S1 to obtain a smooth planar blank assembly;

[0050] S3. The flat blank assembly obtained in S2 is bent using a special bending die so that the linear decorative sheet 11, the rear left wing decorative sheet 21 and the rear right wing decorative sheet 31 are bent and formed, which is more in line with the shape of the top of the bag, and facilitates the linear decorative sheet 11, the rear left wing decorative sheet 21 and the rear right wing decorative sheet 31 to fit the top of the bag;

[0051] S4. Anodize the bent blank assembly obtained in S3. The anodizing process is the same as the existing conventional technology and has no substantial improvement. This process step can enhance the surface hardness of the blank assembly, improve its wear resistance, significantly improve the corrosion resistance of the blank assembly, protect the metal from erosion by the external environment, and extend the service life. In addition, the anodized film can be dyed to form oxide films of various colors to enhance the aesthetics and decorativeness of the metal decorative strips. When performing this process step, since the connecting part is originally discarded, the clamp can clamp the connecting part to immerse the blank assembly in the acidic electrolyte solution. It does not matter if the part of the connecting part clamped by the clamp cannot react with the acidic electrolyte solution. After the reaction is completed, the clamp lifts the blank assembly up.

[0052] S5. The anodized blank assembly obtained in S4 is cut into pieces. Since the connection between the connecting portion and the other parts (the linear decorative sheet 11, the rear left wing decorative sheet 21 and the rear right wing decorative sheet 31) is a point connection, no cutter is required for cutting, and the pieces can be separated by simply bending them manually, that is, the linear decorative sheet 11 and the connecting portion are cut, the rear left wing decorative sheet 21 and the connecting portion are cut, and the rear right wing decorative sheet 31 and the connecting portion are cut to obtain independent parts: the linear decorative sheet 11, the rear left wing decorative sheet 21, the rear right wing decorative sheet 31 and the connecting portion, and the connecting portion is discarded, and only the linear decorative sheet 11, the rear left wing decorative sheet 21, and the rear right wing decorative sheet 31 are put into the subsequent processing technology;

[0053] S6. The linear decorative sheet 11, the rear left wing decorative sheet 21 and the rear right wing decorative sheet 31 cut in S5 are clamped and placed on the cutting and chamfering device 7. The cutting and chamfering device 7 limits the linear decorative sheet 11, the rear left wing decorative sheet 21 and the rear right wing decorative sheet 31 in the horizontal plane direction, and then the cutting and chamfering device 7 is used to chamfer the cutting edges of the linear decorative sheet 11, the cutting edges of the rear left wing decorative sheet 21 and the cutting edges of the rear right wing decorative sheet 31;

[0054] S7. Use a special bonding device 8 to bond the cut and chamfered linear decorative piece 11, rear left wing decorative piece 21 and rear right wing decorative piece 31 in S6 to a fixing piece of the same shape and size (bonding with glue) to form a linear metal decorative strip 1, a rear left wing metal decorative strip 2 and a rear right wing metal decorative strip 3.

[0055] The present invention provides a tool for manufacturing metal decorative strips for luggage, comprising a stamping die 4, a chamfering fixture 5, a bending and forming die 6, a slitting and chamfering device 7 and a laminating device 8.

[0056] like Figure 2-Figure 4 As shown, the stamping die 4 includes a punch 41 and a die plate 42 which are arranged relatively up and down, and a punching channel 421 is provided on the die plate 42. The cross-sectional shape of the punch 41 is the same as that of the punching channel 421, and the punch 41 is smaller than or equal to the punching channel 421. The punch 41 can move quickly toward the die plate 42 so that the punch 41 can quickly enter the punching channel 421, and the punch 41 can move away from the die plate 42 to reset. In the initial state, the punch 41 and the die plate 42 are separated by a distance, so that it is convenient to place the sheet on the upper surface of the die plate 42, and then the punching machine is started, so that the lifting mechanism of the punching machine drives the punch 41 to descend quickly, so that after the punch 41 is pressed onto the metal sheet, it continues to extend into the punching channel 421, and finally the desired stamping part is punched out, and the waste is separated and left on the upper surface of the die plate 42. Of course, in order to minimize the generation of waste, the length and width of the sheet are close to the length and width of the stamping part.

[0057] like Figure 5 and Figure 6 As shown, the chamfering fixture 5 includes a workbench 51, a fixture, a plurality of first positioning columns 53 and a plurality of second positioning columns 54, the fixture includes a first fixture 521, a second fixture 522, a third fixture 523, a fourth fixture 524 and a fifth fixture 525, the first fixture 521 and the second fixture 522 are respectively arranged at the two ends of the left half of the workbench 51, the third fixture 523 and the fourth fixture 524 are respectively arranged at the two ends of the right half of the workbench 51, the fifth fixture 525 is arranged at the center of the right half of the workbench 51, the left half of the workbench 51 is distributed with a plurality of first positioning columns 53, and the right half of the workbench 51 is distributed with a plurality of second positioning columns 54.

[0058] Chamfering steps:

[0059] 1. Place the blank on the left half of the workbench 51 so that it is exactly located at the corresponding position of the first positioning column 53, so that the first positioning column 53 pre-positions the blank;

[0060] 2. Use the first clamp 521 and the second clamp 522 to press down two symmetrical first parts of the blank;

[0061] 3. Start the lathe to chamfer the position other than the first part of the blank. After completion, the lathe automatically closes, and the first clamp 521 and the second clamp 522 release the pressing of the blank;

[0062] 4. Place the blank that has completed the chamfering of the first part in step 3 on the right half of the workbench 51 so that it is exactly located at the corresponding position of the second positioning column 54, so that the second positioning column 54 pre-positions the blank;

[0063] 5. Use the third clamp 523 and the fourth clamp 524 to press down the two symmetrical second parts of the blank, and use the fifth clamp 525 to press down the middle part of the blank;

[0064] 6. Start the lathe and chamfer the second part and the position other than the middle part of the blank. After completion, the lathe automatically closes, and the third clamp 523, the fourth clamp 524 and the fifth clamp 525 release the pressure on the blank, completing the entire chamfering work of the blank.

[0065] The blank is clamped twice and chamfered in stages from the left half to the right half of the workbench 51 because the clamped position cannot be chamfered when it is clamped for the first time. Therefore, the blank is clamped at a different position during the second clamping, so that the position that was not processed in the first clamping can be chamfered.

[0066] like Figure 7-Figure 11 As shown, the bending forming mold 6 includes a lower pressing block 61, a pressure block 62 and a placing platform 63. The lower pressing block 61 is arranged at the top, and the pressure block 62 and the placing platform 63 are arranged at the bottom. A recess 621 is provided at the center of the pressure block 62. The bottom of the placing platform 63 is fixed on the inner wall of the recess 621. The top surface of the placing platform 63 is flush with the top surface of the pressure block 62. The lower pressing block 61 can be pressed on the pressure block 62 and the placing platform 63 or rise and reset. Both ends of the placing platform 63 are spaced from the two side walls of the recess 621. The bottom surface of the lower pressing block 61 is provided with a first inclined table surface 611 and a second inclined table surface 612 arranged front and back. The top surface of the pressure block 62 is provided with a third inclined table surface 622 and a fourth inclined table surface 623 arranged front and back. The first inclined table surface 611 can fit with the third inclined table surface 622, and the second inclined table surface 612 can fit with the fourth inclined table surface 623.

[0067] Bending die 6 usage steps and principles:

[0068] 1. Place the blank to be bent on the placement platform 63, with the linear decorative sheet 11 located at the front of the placement platform 63, and the rear left wing decorative sheet 21 and the rear right wing decorative sheet 31 located at the rear of the placement platform 63; the two parts of the linear decorative sheet 11 near the end are suspended in the distance between the placement platform 63 and the pressure block 62, the rear left wing decorative sheet 21 near the left end is suspended in the distance between the placement platform 63 and the side wall of the recess 621, and the rear right wing decorative sheet 31 near the right end is suspended in the distance between the placement platform 63 and the side wall of the recess 621.

[0069] 2. Start the punching machine, and press the lower pressing block 61 onto the pressure block 62 and the placing platform 63. At this time, the first inclined table surface 611 and the third inclined table surface 622 fit each other, and the suspended part of the linear decorative piece 11 is bent, and the suspended parts of the rear left wing decorative piece 21 and the rear right wing decorative piece 31 are also bent.

[0070] 3. The slider drives the lower pressing block 61 to rise and remove the bent blank.

[0071] like Figure 12-Figure 17 As shown, the slitting and chamfering device 7 includes a base 71, a chamfering processing device 72, a first embedded positioning seat 73 and a second embedded positioning seat 74. The chamfering processing device 72 is fixed on the base 71. The first embedded positioning seat 73 and the second embedded positioning seat 74 are both independent bodies. The first embedded positioning seat 73 can accommodate and position the linear decorative piece 11, and the second embedded positioning seat 74 can accommodate and position the rear left wing decorative piece 21 and the rear right wing decorative piece 31. The chamfering processing device 72 can chamfer the slitting edges of the linear decorative piece 11, the rear left wing decorative piece 21 and the rear right wing decorative piece 31.

[0072] The operating principle of the slitting and chamfering device 7 is as follows: first, place the linear decorative sheet 11 on the first embedded positioning seat 73, and use the first embedded positioning seat 73 to limit the linear decorative sheet 11; place the rear left wing decorative sheet 21 and the rear right wing decorative sheet 31 on the second embedded positioning seat 74, and use the second embedded positioning seat 74 to limit the rear left wing decorative sheet 21 and the rear right wing decorative sheet 31; then hold the first embedded positioning seat 73 with the linear decorative sheet 11 against the side of the chamfering processing device 72, and move it back and forth manually so that the slitting edge of the linear decorative sheet 11 can be processed; then hold the second embedded positioning seat 74 with the rear left wing decorative sheet 21 and the rear right wing decorative sheet 31 against the side of the chamfering processing device 72, and move it back and forth manually so that the slitting edges of the rear left wing decorative sheet 21 and the rear right wing decorative sheet 31 can be processed.

[0073] The laminating device 8 includes a pressing portion 81 and a position-limiting accommodating platform 82 which are arranged in an upper and lower distribution. The position-limiting accommodating platform 82 is fixed on the surface of the workbench 51, and includes a first accommodating seat 821, a second accommodating seat 822 and a third accommodating seat 823. The pressing portion 81 is provided with a first fixing portion 811, a second fixing portion 812 and a third fixing portion 813. The position of the first accommodating seat 821 corresponds to the position of the first fixing portion 811, the position of the second accommodating seat 822 corresponds to the position of the second fixing portion 812, and the position of the third accommodating seat 823 corresponds to the position of the third fixing portion 813. 13, the first accommodating seat 821 can accommodate and limit the linear decorative piece 11, the second accommodating seat 822 can accommodate and limit the rear left wing decorative piece 21, the third accommodating seat 823 can accommodate and limit the rear right wing decorative piece 31, the first fixing portion 811 can magnetically attract the linear fixing piece 12, the second fixing portion 812 can magnetically attract the rear left wing fixing piece 22, the third fixing portion 813 can magnetically attract the rear right wing fixing piece 32, the pressing portion 81 can move downward and be pressed on the top surface of the limiting accommodating platform 82, and the pressing portion 81 can move upward and reset to detach from the limiting accommodating platform 82.

[0074] When the metal decorative sheet needs to be attached to the fixing sheet, the linear decorative sheet 11 is placed on the first receiving seat 821 , the rear left wing decorative sheet 21 is placed on the second receiving seat 822 , and the rear right wing decorative sheet 31 is placed on the third receiving seat 823 . The first accommodating seat 821 can accommodate and limit the linear decorative piece 11, the second accommodating seat 822 can accommodate and limit the rear left wing decorative piece 21, and the third accommodating seat 823 can accommodate and limit the rear right wing decorative piece 31; then the linear fixing piece 12 is magnetically attracted to the bottom of the first fixing part 811, the rear left wing fixing piece 22 is magnetically attracted to the bottom of the second fixing part 812, and the rear right wing fixing piece 32 is magnetically attracted to the bottom of the third fixing part 813; then glue is applied to the upper surfaces of the linear decorative piece 11, the rear left wing decorative piece 21 and the rear right wing decorative piece 31; then the pressing part 81 is lowered until the pressing part 81 is pressed onto the limiting accommodating platform 82, that is, the first fixing part 811 is pressed onto the first accommodating seat 821, the second fixing part 812 is pressed onto the second accommodating seat 822, and the third fixing part 813 is pressed onto the third fixing part 813. After a period of time when the glue solidifies, the pressing part 81 is raised and the pressing part 81 leaves the limiting accommodating platform 82, so that the metal decorative strip and the fixing plate are fitted and fixed together, and finally the metal decorative strip and the fixing plate can be removed as a whole.

[0075] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. A process for manufacturing metal decorative strips for luggage, characterized in that: The steps include: S1: using a specially made stamping die (4) to stamp out a planar blank assembly from a metal sheet, the planar blank assembly comprising a linear decorative piece (11), a rear left wing decorative piece (21), a rear right wing decorative piece (31), and a connecting portion, wherein the connecting portion is located in the middle and is in the shape of a triangle, and the three corners of the connecting portion respectively fix the linear decorative piece (11), the rear left wing decorative piece (21), and the rear right wing decorative piece (31); S2: chamfering the edge of the planar blank assembly obtained in S1 using a specially made chamfering fixture (5) to obtain a smooth planar blank assembly; S3: using a specially made bending and forming die (6) to bend the planar blank assembly obtained in S2, so that the linear decorative piece (11), the rear left wing decorative piece (21) and the rear right wing decorative piece (31) are all bent and formed; S4: Anodizing the bent blank assembly obtained in S3; S5: cutting the anodized blank assembly obtained in S4, that is, cutting the linear decorative sheet (11) and the connecting portion, cutting the rear left wing decorative sheet (21) and the connecting portion, and cutting the rear right wing decorative sheet (31) and the connecting portion to obtain independent parts: the linear decorative sheet (11), the rear left wing decorative sheet (21), the rear right wing decorative sheet (31) and the connecting portion, and discarding the connecting portion, and only putting the linear decorative sheet (11), the rear left wing decorative sheet (21), and the rear right wing decorative sheet (31) into the subsequent processing technology; S6: the linear decorative sheet (11), the rear left wing decorative sheet (21) and the rear right wing decorative sheet (31) cut in S5 are clamped and placed on the cutting and chamfering device (7), the cutting and chamfering device (7) limits the linear decorative sheet (11), the rear left wing decorative sheet (21) and the rear right wing decorative sheet (31) in the horizontal direction, and then the cutting and chamfering device (7) is used to chamfer the cutting edges of the linear decorative sheet (11), the cutting edges of the rear left wing decorative sheet (21) and the cutting edges of the rear right wing decorative sheet (31); S7: using a specially made bonding device (8) to bond the cut and chamfered linear decorative sheet (11), the rear left wing decorative sheet (21) and the rear right wing decorative sheet (31) in S6 to a fixing sheet of the same shape and size, respectively, to form a linear metal decorative strip (1), a rear left wing metal decorative strip (2) and a rear right wing metal decorative strip (3); The metal decorative strip comprises a linear metal decorative strip (1), a rear left wing metal decorative strip (2) and a rear right wing metal decorative strip (3); the linear metal decorative strip (1) comprises a linear decorative sheet (11) and a linear fixing sheet (12); a first nut (13) is fixedly disposed on one side of the linear fixing sheet (12); a side of the linear fixing sheet (12) facing away from the first nut (13) is bonded to the linear decorative sheet (11); the rear left wing metal decorative strip (2) comprises a rear left wing decorative sheet (21) and a rear left wing fixing sheet (22); ), a second nut (23) is fixedly provided on one side of the rear left wing decorative sheet (21), and a side of the rear left wing decorative sheet (21) facing away from the second nut (23) is bonded to the rear left wing fixing sheet (22); the rear right wing metal decorative strip (3) is composed of a rear right wing decorative sheet (31) and a rear right wing fixing sheet (32), a third nut (33) is fixedly provided on one side of the rear right wing fixing sheet (32), and a side of the rear right wing fixing sheet (32) facing away from the third nut (33) is bonded to the rear right wing decorative sheet (31).

2. The manufacturing process of the metal decorative strip for luggage according to claim 1 is characterized in that: The punching die (4) comprises a punch (41) and a die plate (42) which are arranged opposite to each other in an upper and lower direction; a punching channel (421) is provided on the die plate (42); the cross-sectional shape of the punch (41) is the same as the cross-sectional shape of the punching channel (421); the punch (41) is smaller than or equal to the punching channel (421); the punch (41) can quickly move toward the die plate (42) and can quickly enter the punching channel (421); and the punch (41) can move in a direction away from the die plate (42) to reset.

3. The manufacturing process of the metal decorative strip for luggage according to claim 2 is characterized in that: The chamfering fixture (5) comprises a workbench (51), a fixture, a plurality of first positioning columns (53) and a plurality of second positioning columns (54); the fixture comprises a first fixture (521), a second fixture (522), a third fixture (523), a fourth fixture (524) and a fifth fixture (525); the first fixture (521) and the second fixture (522) are respectively arranged at two ends of a left half of the workbench (51); the third fixture (523) and the fourth fixture (524) are respectively arranged at two ends of a right half of the workbench (51); the fifth fixture (525) is arranged at the center of the right half of the workbench (51); the left half of the workbench (51) is provided with a plurality of first positioning columns (53); and the right half of the workbench (51) is provided with a plurality of second positioning columns (54).

4. The manufacturing process of the metal decorative strip for luggage according to claim 3 is characterized in that: The bending forming mold (6) comprises a lower pressing block (61), a pressure block (62) and a placement platform (63), wherein the lower pressing block (61) is arranged at the top, and the pressure block (62) and the placement platform (63) are arranged at the bottom. A recess (621) is provided at the center of the pressure block (62), and the bottom of the placement platform (63) is fixed to the inner wall of the recess (621). The top surface of the placement platform (63) is flush with the top surface of the pressure block (62), and the lower pressing block (61) can be pressed onto the pressure block (62) and the placement platform. The placing platform (63) is placed on the placing platform (63) or raised to reset, and both ends of the placing platform (63) are spaced from the two side walls of the recess (621), the bottom surface of the lower pressing block (61) is provided with a first inclined table surface (611) and a second inclined table surface (612) arranged front and back, and the top surface of the pressure bearing block (62) is provided with a third inclined table surface (622) and a fourth inclined table surface (623) arranged front and back, the first inclined table surface (611) and the third inclined table surface (622) can be matched, and the second inclined table surface (612) and the fourth inclined table surface (623) can be matched.

5. The manufacturing process of the metal decorative strip for luggage according to claim 4 is characterized in that: The slitting and chamfering device (7) comprises a base (71), a chamfering processing device (72), a first embedded positioning seat (73) and a second embedded positioning seat (74); the chamfering processing device (72) is fixed on the base (71); the first embedded positioning seat (73) and the second embedded positioning seat (74) are both independent bodies; the first embedded positioning seat (73) can accommodate and position the linear decorative sheet (11); the second embedded positioning seat (74) can accommodate and position the rear left wing decorative sheet (21) and the rear right wing decorative sheet (31); the chamfering processing device (72) can chamfer the slitting edges of the linear decorative sheet (11), the rear left wing decorative sheet (21) and the rear right wing decorative sheet (31).

6. The manufacturing process of the metal decorative strip for luggage according to claim 5 is characterized in that: The laminating device (8) comprises a pressing portion (81) and a position-limiting accommodating platform (82) which are arranged in an upper and lower distribution. The position-limiting accommodating platform (82) is fixed on the surface of the workbench (51) and comprises a first accommodating seat (821), a second accommodating seat (822) and a third accommodating seat (823). The pressing portion (81) is provided with a first fixing portion (811), a second fixing portion (812) and a third fixing portion (813). The position of the first accommodating seat (821) corresponds to the position of the first fixing portion (811). The position of the second accommodating seat (822) corresponds to the position of the second fixing portion (812). The position of the third accommodating seat (823) corresponds to the position of the third fixing portion (813). 13), the first accommodating seat (821) can accommodate and limit the linear decorative sheet (11), the second accommodating seat (822) can accommodate and limit the rear left wing decorative sheet (21), the third accommodating seat (823) can accommodate and limit the rear right wing decorative sheet (31), the first fixing portion (811) can magnetically attract the linear fixing sheet (12), the second fixing portion (812) can magnetically attract the rear left wing fixing sheet (22), the third fixing portion (813) can magnetically attract the rear right wing fixing sheet (32), the pressing portion (81) can move downward to be pressed on the top surface of the limiting accommodating platform (82), and the pressing portion (81) can move upward to be reset and detached from the limiting accommodating platform (82).

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