Extrusion frame structure capable of synchronously sewing lining

Abstract

The utility model relates to the technical field of bags and suitcases, and provides an extrusion frame structure capable of synchronously sewing a lining, which is used for solving a series of problems caused by separated operation of lining fixing and extrusion frame sewing operation and comprises an extrusion frame body, the upper end part of the extrusion frame body is a soft plastic part, and the lower end part of the extrusion frame body is a hard plastic part. The soft plastic part is provided with an outer clamping groove and an inner clamping groove, the outer clamping groove and the inner clamping groove are arranged in an up-down stacked mode, and the inner side of the bottom of the soft plastic part and the inner side of the top of the hard plastic part are integrally formed in a co-extrusion mode. A lining fixing groove used for clamping a lining is formed between the bottom of the soft plastic part and the top of the hard plastic part and located below the outer clamping groove and the inner clamping groove, the notch of the lining fixing groove faces outwards, the hard plastic part is located below the lining fixing groove, and a sewing guide groove matched with external sewing equipment is upwards formed in the bottom of the hard plastic part. The extrusion frame body is provided with sewing track lines used for sewing and fixing the zipper tape, the box body, the lining and the extrusion frame body.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of luggage, especially to the extrusion frame structure of synchronous sewing lining. BACKGROUND

[0002] The extrusion frame is formed by co-extrusion of soft plastic material and hard plastic material, and the soft plastic part is beneficial to the sewing fixation of the extrusion frame, the box body and the zipper, and the hard plastic part is beneficial to the strengthening of the frame strength of the luggage.

[0003] At present, the lining of the luggage is mostly clamped on the extrusion frame by a clamping strip. The extrusion frame needs to be formed with a corresponding clamping groove for clamping the lining clamping strip, which complicates the structure of the extrusion frame and increases the cost of the extrusion frame. The clamping fixation operation of the lining has to be separated from the sewing operation among the box body, the zipper and the extrusion frame. The clamping operation of the lining and the sewing operation of the extrusion frame are separated and need multiple processes, each process needs separate operation, manual participation and different equipment operation, which prolongs the production cycle, reduces the overall efficiency, increases the manufacturing cost, and also increases the error rate and the defect rate of the luggage.

[0004] Therefore, in order to reduce the manufacturing cost and improve the production efficiency, the present case is generated. CONTENT OF THE UTILITY MODEL

[0005] Therefore, in order to solve the series of problems caused by the separation of the lining fixation and the sewing operation of the extrusion frame, the utility model provides the extrusion frame structure of synchronous sewing lining.

[0006] To solve the above technical problems, the utility model takes the following solution: the extrusion frame structure of synchronous sewing lining, including extrusion frame body, the upper end of the extrusion frame body is a soft plastic part, the lower end is a hard plastic part, the soft plastic part is provided with an outer clamping groove with an opening facing the outside for clamping the zipper tape and an inner clamping groove with an opening facing the inside for clamping the box body, the outer clamping groove and the inner clamping groove are arranged in layers, the bottom inside of the soft plastic part and the top inside of the hard plastic part are integrally co-extruded, the groove between the bottom of the soft plastic part and the top of the hard plastic part below the outer clamping groove and the inner clamping groove forms a notch outward for clamping the lining, the hard plastic part below the lining fixing groove is provided with a sewing guide groove upward from the bottom for cooperating with the external sewing equipment, the extrusion frame body is provided with a sewing trajectory line for sewing and fixing the zipper tape, the box body and the lining with the extrusion frame body, the upper end of the sewing trajectory line is located on the top surface of the soft plastic part or on the upper surface of the zipper tape, and the lower end of the sewing trajectory line penetrates into the sewing guide groove.

[0007] Further improvement is that the inner lining fixing groove is provided with an inner lining auxiliary fixing structure for facilitating the inner lining to be clamped in the inner lining fixing groove and limiting the inner lining from deviating during the sewing process.

[0008] Further improvement is that the inner lining auxiliary structure comprises a soft plastic sheet fixed on the inner lining sewing edge, and the inner lining fixing groove is provided with a limiting protrusion upwardly protruding at the slot opening of the lower groove wall for limiting the clamping position of the soft plastic sheet and limiting the deviation of the soft plastic sheet.

[0009] Further improvement is that the inner side surface of the limiting protrusion is a vertical surface abutting against the soft plastic sheet.

[0010] Further improvement is that the inner lining auxiliary structure comprises a positioning strip fixed on the inner lining sewing edge, and the lower groove wall of the inner lining fixing groove is provided with a limiting groove downwardly recessed at the groove bottom for embedding the positioning strip to limit the displacement of the positioning strip.

[0011] Further improvement is that the positioning strip is a glue strip or a steel wire or an inner lining hem or a zipper rack.

[0012] Further improvement is that the upper groove bottom of the sewing guide groove is provided with a strengthening protrusion downwardly protruding to form an acute included angle between the two side walls and the upper bottom surface of the sewing guide groove to strengthen the strength of the lower end part of the extrusion frame body, and the middle part of the strengthening protrusion is recessed downwardly and upwardly to form a sewing groove.

[0013] Further improvement is that the upper groove wall of the inner lining fixing groove is provided with a downward pressing protrusion outwardly and obliquely downwardly protruding at the slot opening for pressing the inner lining.

[0014] Further improvement is that the outer side of the lower groove wall of the inner lining fixing groove is provided with an arc or plane inclined surface downwardly and obliquely outwardly arranged below the downward pressing protrusion for facilitating the guiding of the inner lining to be clamped and the smoothness of the inner lining.

[0015] Further improvement is that the inner side surface of the lower end part of the extrusion frame body is provided with a strengthening structure for strengthening the strength of the extrusion frame body.

[0016] Further improvement is that the strengthening structure is a strengthening block integrally arranged on the lower end part of the extrusion frame body by using a hard plastic material, and the upper end surface of the strengthening block is flush with the lower groove surface of the inner clamping groove.

[0017] Further improvement is that the strengthening block is internally provided with a hollow structure for reducing the material usage and the weight of the extrusion frame body, and the hollow structure is in a mouth-shaped structure or a day-shaped structure or a eye-shaped structure.

[0018] By adopting the foregoing technical scheme, the utility model has the advantages of:

[0019] 1、In this case, the inner lining is stitched with the opening and closing zipper and the box synchronously, effectively reducing the process, shortening the production cycle of the luggage, reducing the labor cost, and improving the production efficiency. The upper end of the extrusion frame body is provided as a soft plastic part, and the lower end is provided as a hard plastic part. The upper end and the lower end are integrally co-extruded, which increases the bonding strength of the soft plastic part and the hard plastic part. The soft plastic part forms an upper clamping groove and a lower clamping groove for clamping the opening and closing zipper and the box, and an inner lining fixing groove formed between the lower end surface of the soft plastic part and the upper end surface of the hard plastic part, so that the stitching path of the sewing needle only needs to pass through the small hard plastic part between the bottom of the stitching guide groove and the lower groove surface of the inner lining fixing groove, which is beneficial to improve the stitching efficiency. The soft plastic part provides good flexibility, which is convenient for sewing, and the hard plastic part provides sufficient rigidity, which increases the overall strength of the luggage.

[0020] The setting of the stitching guide groove enables the external sewing equipment to accurately perform the stitching operation along the stitching guide groove, ensures that the sewing line forms a straight line, and improves the stitching precision and efficiency.

[0021] 2、The inner lining auxiliary fixing structure arranged in the inner lining fixing groove can assist in feeding the light, thin and soft inner lining cloth into the inner lining fixing groove.

[0022] The inner lining auxiliary fixing structure one: a sheet-shaped soft plastic sheet is first fixed with the inner lining, then the inner lining is clamped in the inner lining fixing groove by the strength of the soft plastic sheet, and the clamping position of the soft plastic sheet and the deviation of the soft plastic sheet are limited by the limiting protrusions arranged in the slot, which realizes further limiting the deviation of the inner lining while ensuring the clamping of the inner lining in place, avoids the displacement or falling out of the inner lining during sewing, improves the stitching precision and efficiency of the inner lining, and improves the appearance of the inner side of the luggage.

[0023] The inner lining auxiliary fixing structure two: a strip-shaped positioning strip is first fixed with the inner lining, then the inner lining is fed into the inner lining fixing groove by the positioning strip, and the positioning strip is embedded and fixed in the limiting groove to ensure that the inner lining is clamped in place and to limit the deviation of the inner lining by limiting the movement of the positioning strip, which avoids the displacement or falling out of the inner lining during sewing, improves the stitching precision and efficiency of the inner lining, and improves the appearance of the inner side of the luggage. The positioning strip can be made of various materials, such as adhesive tape, steel wire, inner lining hem, and zipper strip, which increases the flexibility and applicability of the design and can adapt to different production needs and material characteristics.

[0024] 3、The setting of the reinforcing protrusion improves the strength of the stitching guide groove, avoids the deformation of the two groove walls of the stitching guide groove outward during the sewing guide process, and is beneficial to improve the flatness of the sewing line and the sewing efficiency. The stitching groove formed by the upward concave middle part of the reinforcing protrusion is beneficial to shorten the thickness of the hard plastic part that needs to be stitched while increasing the strength of the stitching guide groove, which is beneficial to improve the sewing efficiency.

[0025] 4、The setting of the pressing protrusion and the arc-shaped slope, the flat slope in the case makes the clamping and guiding of the inner liner more smooth, reduces the operation difficulty and time, improves the production efficiency, at the same time, increases the compliance between the inner liner and the outer side of the extrusion frame, facilitates the smooth transition of the inner liner to the inner wall of the box body, and improves the internal beauty of the luggage.

[0026] 5、The setting of the reinforcing block further strengthens the rigidity of the extrusion frame body, and the hollow structure is arranged in the reinforcing block, so that the material usage is reduced, and the weight of the extrusion frame body is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is a structure schematic view of the extrusion frame structure capable of synchronously stitching the inner liner of the embodiment of the utility model.

[0028] Figure 2 is a structure schematic view of the extrusion frame structure capable of synchronously stitching the inner liner of the embodiment of the utility model.

[0029] Figure 3 is a structure schematic view of the extrusion frame structure capable of synchronously stitching the inner liner of the embodiment of the utility model.

[0030] Figure 4 is a structure schematic view of the extrusion frame structure capable of synchronously stitching the inner liner of the embodiment of the utility model.

[0031] Figure 5 is a structure schematic view of the reinforcing structure in the extrusion frame structure capable of synchronously stitching the inner liner of the embodiment of the utility model.

[0032] Figure 6 is a structure schematic view of the reinforcing structure in the extrusion frame structure capable of synchronously stitching the inner liner of the embodiment of the utility model.

[0033] Figure 7 is a structure schematic view of the reinforcing structure in the extrusion frame structure capable of synchronously stitching the inner liner of the embodiment of the utility model. DETAILED DESCRIPTION

[0034] The utility model will be further described in combination with the drawings and specific embodiments.

[0035] Reference Figure 1 , Figure 2 , Figures 5 to 7The utility model discloses an extrusion frame structure of synchronous stitching inner lining, including extrusion frame body, the upper end part of extrusion frame body is soft plastic part 10, and the lower end part is hard plastic part 11, soft plastic part 10 is provided with the outer clamping groove 12 for clamping zipper strip with the opening towards the outside, the inner clamping groove 13 for clamping box with the opening towards the inside, the outer clamping groove 12 with the inner clamping groove 13 upper and lower layer setting, can be outer clamping groove 12 on, also can be inner clamping groove 13 on. Figures 1 to 4 The bottom inside of soft plastic part 10 with the inside of top of hard plastic part 11 is integrally co-extrusion formed. The soft and hard combination place refers to

[0036] The bottom of soft plastic part 10 with the top of hard plastic part 11 is located the outer clamping groove 12 and inner clamping groove 13 below and forms the notch towards outside, the inner lining fixed groove 14 for clamping inner lining, the hard plastic part 11 is located the inner lining fixed groove 14 below, and the sewing guide groove 15 for cooperating with external sewing equipment is set up from bottom to upwards, the extrusion frame body is provided with the sewing trajectory line 16 for stitching and fixing zipper strip, box, inner lining and extrusion frame body. The upper end of sewing trajectory line 16 is located the top surface of soft plastic part 10 or the upper surface of zipper strip, and the lower end of sewing trajectory line 16 is inserted into the sewing guide groove 15. Preferably, the upper end of sewing trajectory line 16 is located the upper surface of zipper strip, so as to hide sewing line trajectory by the upper groove wall of outer clamping groove 12, and the overall appearance of bag is improved.

[0037] Further, the upper groove bottom of sewing guide groove 15 is downwardly protruded and provided with a reinforcing protrusion 20 for forming an acute angle between the upper bottom surface and the two side walls of the sewing guide groove 15 to strengthen the strength of the lower end of the extrusion frame body.

[0038] Further, the upper groove wall of the inner lining fixed groove 14 is protruded downwardly and outwardly to form a pressing protrusion 23 for pressing the inner lining to fit the extrusion frame body.

[0039] Further, the inner liner fixing groove 14 is provided with an arc surface or a plane surface 24 which is inclined downwardly and is located on the outer side of the lower groove wall below the pressing convex 23. The arc surface or the plane surface 24 is used for guiding the inner liner to be clamped and for smoothing the inner liner, so that the inner liner is flatly attached to the lower end of the extrusion frame body.

[0040] Further, the inner liner fixing groove 14 is provided with an arc surface or a plane surface 24 which is inclined downwardly and is located on the outer side of the lower groove wall below the pressing convex 23. The arc surface or the plane surface 24 is used for guiding the inner liner to be clamped and for smoothing the inner liner, so that the inner liner is flatly attached to the lower end of the extrusion frame body.

[0041] Based on the above scheme, referring to Figure 3 and Figure 4 , the inner liner auxiliary structure can further include a positioning strip 27 which is fixed to the sewn edge of the inner liner. The bottom of the lower groove wall of the inner liner fixing groove 14 is recessed downwardly to form a limiting groove 28 in which the positioning strip 27 is embedded to limit the displacement of the positioning strip 27. The positioning strip 27 is a rubber strip or a steel wire or an inner liner rolled edge or a zipper rack. The rubber strip and the steel strip are glued to the sewn edge of the inner liner or the edge of the inner liner is wrapped around the rubber strip and the steel strip to be sewn and fixed. The inner liner rolled edge is formed by rolling the edge of the inner liner and then being sewn and fixed. Or, a layer of rubber is adhered to the edge of the inner liner, and the rubber layer is rolled to form the inner liner rolled edge which will not be loose. The cloth side of the zipper rack is glued or sewn to the inner liner.

[0042] The basic principle and main features of the utility model and the advantages thereof are shown and described above. It should be understood by those skilled in the art that the utility model is not limited to the above-mentioned embodiments. The above-mentioned embodiments and descriptions are only used to illustrate the principle of the utility model. Various changes and improvements can be made to the utility model without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model which is defined by the appended claims and their equivalents. The scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. An extruded frame structure for a synchronically seamed inner liner, comprising an extruded frame body, characterized in that: The upper end of the extrusion frame body is a soft plastic part, and the lower end is a hard plastic part. The soft plastic part is provided with an outer clamping groove with an opening facing the outside for clamping the zipper tape and an inner clamping groove with an opening facing the inside for clamping the box body. The outer clamping groove and the inner clamping groove are arranged in a stacked manner. The inner side of the bottom of the soft plastic part and the inner side of the top of the hard plastic part are integrally co-extruded. The bottom of the soft plastic part and the top of the hard plastic part form a lining fixing groove for clamping the lining below the outer clamping groove and the inner clamping groove. The hard plastic part is below the lining fixing groove and is provided with a sewing guide groove above the bottom for cooperating with an external sewing device. The extrusion frame body is provided with a sewing track line for sewing and fixing the zipper tape, the box body, and the lining to the extrusion frame body. The upper end of the sewing track line is located on the top surface of the soft plastic part or on the upper surface of the zipper tape. The lower end of the sewing track line penetrates into the sewing guide groove.

2. The extruded frame structure of a synchronizable stitched inner liner of claim 1, wherein: The lining fixing groove is provided with a lining auxiliary fixing structure for positioning and clamping the lining in the lining fixing groove and limiting the deviation of the lining during sewing.

3. The extruded frame structure of a synchronizable stitched inner liner of claim 2, wherein: The lining auxiliary structure includes a soft plastic piece fixed to the sewing edge of the lining. The lining fixing groove is provided with a limiting protrusion at the notch of the lower groove wall for limiting the clamping position of the soft plastic piece and limiting the deviation of the soft plastic piece.

4. The extruded frame structure of a synchronizable stitched inner liner of claim 3, wherein: The inner side of the limiting protrusion is a vertical surface that abuts against the soft plastic piece.

5. The extruded frame structure of a synchronizable stitched inner liner of claim 2, wherein: The lining auxiliary structure includes a positioning strip fixed to the sewing edge of the lining. The lower groove wall of the lining fixing groove is provided with a limiting groove at the groove bottom for embedding the positioning strip to limit the displacement of the positioning strip.

6. The extruded frame structure of a synchronizable stitched inner liner of claim 5, wherein: The positioning strip is a rubber strip or a steel wire or a lining hem or a zipper rack.

7. The extruded frame structure of a synchronizable stitched inner liner according to any of claims 1-6, characterized in that: The upper groove bottom of the sewing guide groove is provided with a strengthening protrusion that forms an acute included angle between the two side walls and the upper bottom surface of the sewing guide groove to strengthen the strength of the lower end of the extrusion frame body. The middle part of the strengthening protrusion is recessed from bottom to top to form a sewing groove.

8. The extruded frame structure of a synchronizable stitched inner liner according to any one of claims 1-6, characterized in that: The upper groove wall of the lining fixing groove is provided with a pressing protrusion on the outer side of the notch and inclined downward to press the lining.

9. The extruded frame structure of a synchronizable stitched inner liner of claim 8, wherein: The lower groove wall of the lining fixing groove is provided with an arc or plane inclined surface on the outer side of the pressing protrusion and inclined downward to guide the clamping of the lining and smooth the excess lining.

10. The extruded frame structure of a synchronizable stitched inner liner according to any one of claims 1-6, characterized in that: The inner side of the lower end of the extrusion frame body is provided with a reinforcing structure for strengthening the strength of the extrusion frame body.

11. The extruded frame structure of a synchronizable stitched inner liner of claim 10, wherein: The reinforcing structure is a reinforcing block made of hard plastic material and integrally arranged on the lower end of the extrusion frame body. The upper end surface of the reinforcing block is flush with the lower groove surface of the inner clamping groove.

12. The extruded frame structure of a synchronizable stitched inner liner of claim 11, wherein: The reinforcing block is provided with a hollow structure inside for reducing the amount of material used and reducing the weight of the extrusion frame body. The hollow structure is in the shape of a mouth-shaped structure, a day-shaped structure, or a goal-shaped structure.

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