Extrusion frame capable of automatically sewing

Abstract

The utility model relates to the technical field of bags and suitcases, and provides an extrusion frame capable of automatically sewing, which can guarantee the strength and the aesthetic property of the bags and suitcases, and comprises an extrusion frame body which is consistent with an opening of an external box body in shape, the upper end part of the extrusion frame body is made of a soft plastic material, and the lower end part of the extrusion frame body is made of a hard plastic material; an upper clamping groove and a lower clamping groove are formed in the upper end part of the extrusion frame body, a sewing guide groove capable of automatically guiding is upwards formed in the lower end part of the extrusion frame body from the lower end surface, a lining strip groove is formed in the position, located on the inner side or the outer side of the sewing guide groove, of the lower end part of the extrusion frame body, and a lining strip is arranged in the lining strip groove in a clamped mode. The upper ends of the lining strips are clamped and fixed in the lining strip grooves, and the lower ends of the lining strips are sewn and connected with the external lining layer.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of luggage technology, especially to an extrusion frame capable of automatic sewing. BACKGROUND

[0002] Traditional zipper luggage products generally adopt soft extrusion strips and zipper sewing, and the strength of the luggage is relatively weak, the sewing thread leaks out after sewing and is not beautiful, and the flatness of the sewing thread track excessively depends on the sewing technology of the operator. Or, a hard frame is glued and fixed, and the amount of glue is not easy to control, which affects the firmness if too little, and affects the appearance if too much, and the process is complex and the cost is high.

[0003] In order to solve the above problems, the utility model provides an extrusion frame combining soft and hard to simultaneously ensure the strength and appearance of the luggage. SUMMARY

[0004] Therefore, in view of the above problems, the utility model provides an extrusion frame capable of automatic sewing to ensure the strength and appearance of the luggage.

[0005] To solve the above technical problems, the utility model adopts the following solution: an extrusion frame capable of automatic sewing, comprising an extrusion frame body with a shape consistent with the opening of an external box, characterized in that: the upper end of the extrusion frame body is made of soft plastic material, and the lower end of the extrusion frame body is made of hard plastic material; the upper end of the extrusion frame body is provided with an upper clamping groove and a lower clamping groove, the lower end of the extrusion frame body is provided with a self-guiding sewing guide groove upwardly opened from the lower end surface, the inner side or the outer side of the lower end of the extrusion frame body is provided with an inner strip groove, and an inner strip is clamped and arranged in the inner strip groove, the upper end of the inner strip is clamped and fixed in the inner strip groove, and the lower end is sewn to an external inner layer.

[0006] Further improvement: a first groove is concavely arranged in the lower groove surface of the lower clamping groove.

[0007] Further improvement: a reinforcing protrusion for strengthening the anti-eversion deformation strength of the sewing guide groove is protrusively arranged in the upper groove bottom of the sewing guide groove, and an acute angle is formed between the inner and outer sides of the reinforcing protrusion and the inner and outer groove walls of the sewing guide groove.

[0008] Further improvement: a second groove for reducing the thickness of the needle of an external automatic sewing machine is upwardly arranged in the middle of the reinforcing protrusion.

[0009] Further improvement: the sewing track between the extrusion frame body, the external box and the external zipper passes through the upper surface of the external zipper vertically and downwardly in sequence, passes through the lower groove wall of the upper clamping groove, the external box, and the first groove and the second groove to enter the sewing guide groove.

[0010] Further improvement is that the sewing track between the extrusion frame body and the external box and the external zipper vertically downward sequentially passes through the upper groove wall of the upper clamping groove, the external zipper, the lower groove wall of the upper clamping groove, the external box, and the first recess and the second recess into the sewing guide groove.

[0011] Further improvement is that the outer surface of the upper groove wall of the upper clamping groove is provided with a parallel protrusion parallel to the sewing track line on the inner and outer sides of the sewing track.

[0012] Further improvement is that the lower end of the inner layer is further provided with a zipper, and the zipper tape on one side of the zipper is sewn to the lower end of the inner strip, and the other side of the zipper tape is sewn to the inner layer.

[0013] Further improvement is that the upper end and the lower end of the extrusion frame body are integrally formed, and the lower end of the extrusion frame body is provided with a connecting protrusion upwardly protruding for increasing the connecting area of the integrally formed soft plastic and hard plastic.

[0014] Further improvement is that the inner strip is made of soft plastic, hard plastic or metal.

[0015] Further improvement is that the lower end of the extrusion frame body is integrally provided with a reinforcing strip on the side away from the other side of the inner strip groove for increasing the deformation resistance of the sewing guide groove to increase the strength of the extrusion frame body.

[0016] Further improvement is that the inner groove wall and the outer groove wall of the inner strip groove are respectively provided with first inner and outer clamping protrusions, and the inner side and the outer side of the upper end of the inner strip are respectively provided with second inner and outer clamping protrusions matched with the first inner and outer clamping protrusions.

[0017] Further improvement is that the inner groove wall of the inner strip groove is provided with an inwardly inclined inclined surface at the lower end, and the lower end of the inner strip is inwardly inclined and matched with the inclined surface.

[0018] Further improvement is that the outer groove wall of the inner strip groove extends inwardly and covers the sewing line on the inner strip.

[0019] Further improvement is that the lower end of the outer groove wall of the inner strip groove is provided with an avoidance groove for avoiding the sewing line at the lower end of the inner strip.

[0020] Further improvement is that the slot of the inner strip groove is connected with the sewing guide groove, the upper end of the inner strip is clamped in the inner strip groove, the lower end of the inner strip is inclined to the sewing guide groove, and the width of the upper end of the inner strip is greater than the width of the slot of the inner strip groove.

[0021] Further improvement is that the inner lining strip slot inner wall is provided with a limiting protrusion for limiting the movement of the inner lining strip.

[0022] By adopting the foregoing technical scheme, the utility model has the advantages of:

[0023] In the case, the upper end and the lower end of the extrusion frame body adopt different plastic materials in hardness, the soft plastic material of the upper end is beneficial to the sewing connection and fixation with the box body and the zipper, and the hard plastic material of the lower end makes up for the problem of insufficient strength of the soft plastic extrusion frame, so that the extrusion frame body can meet the requirements of sewing connection and increase the strength of the luggage. The sewing guide groove formed in the lower end of the extrusion frame body is self-guided in cooperation with the external sewing machine, does not depend on the operation experience of the operator, reduces the labor cost, and avoids the occurrence of the conditions of the sewing trajectory line deflection and distortion, greatly improves the appearance of the sewing trajectory line, and improves the overall quality of the luggage. The inner lining layer is sewn and connected with the inner lining strip, the inner lining layer is efficiently assembled in the extrusion frame by means of the convenient clamping of the inner lining strip and the inner lining strip slot, and the inner lining layer is clamped on the outside of the extrusion frame body, so that the inner lining layer can shield the sewing guide groove and the sewing trajectory line, improve the appearance of the inner box opening of the zipper box, and improve the quality of the luggage.

[0024] Further beneficial effects are that the first recess formed by the downward concave lower groove surface of the lower clamping groove provides a space for avoiding the unevenness of the lower surface of the box caused by the sewing needle hole during sewing, so that the sewing trajectory line is not affected by the uneven surface and can still be smoothly sewn, improving the appearance of the sewing line and the sewing efficiency.

[0025] Further beneficial effects are that the sharp angle between the reinforcing protrusion arranged on the upper groove bottom of the sewing guide groove and the side wall of the sewing guide groove improves the anti-deformation performance of the sewing guide groove and the overall strength of the extrusion frame.

[0026] Further beneficial effects are that the second recess reduces the thickness of the reinforcing protrusion, which is beneficial to the needle of the sewing machine, and improves the sewing efficiency.

[0027] Further beneficial effects are that the sewing trajectory between the extrusion frame body and the external box body and the external zipper has two options; the first option is to hide the sewing trajectory line inside the extrusion frame, i.e. in the upper clamping groove, which is beneficial to improve the appearance of the luggage after sewing; the second option is to directly penetrate the three for sewing, so that the sewing line is exposed outside the extrusion frame, which is beneficial to reduce the requirements of the operator and the equipment for sewing, and has strong universality.

[0028] Further beneficial effects are that the inner lining layer can be indirectly sewn with the inner lining strip through the zipper, which is beneficial to the disassembly and cleaning of the inner lining layer, and the inner lining layer can be disassembled and assembled when the inner lining strip is assembled, which is convenient for assembly operation and improves the assembly efficiency.

[0029] Further beneficial effects are: the upper end and the lower end of the extrusion frame body are integrally formed by co-extrusion, and are formed into a shape consistent with the opening of the box by heat bending, and the setting of the connecting protrusions increases the connecting area between the soft plastic and the hard plastic, and improves the integrated fusion strength between the two materials.

[0030] Further beneficial effects are: the inner strip can be made of soft plastic material or hard plastic material or metal material, the soft plastic material is beneficial to sewing, the hard plastic material and the metal material are beneficial to increasing the assembly strength between the inner strip and the extrusion frame body, and can also improve the overall strength of the extrusion frame.

[0031] Further beneficial effects are: the inner strip is inclined and clamped on the extrusion frame body, which is beneficial to the inner layer being fitted on the inner wall of the box, and the sewing line on the inner strip can also be hidden in the inner strip groove to improve. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 is a structure schematic diagram of the extrusion frame of the embodiment one of the utility model.

[0033] Figure 2 is a structure schematic diagram of the extrusion frame of the embodiment one of the utility model.

[0034] Figure 3 is a structure schematic diagram of the extrusion frame of the embodiment one of the utility model.

[0035] Figure 4 is a structure schematic diagram of the extrusion frame of the embodiment one of the utility model.

[0036] Figure 5 is a structure schematic diagram of the extrusion frame of the embodiment two of the utility model.

[0037] Figure 6 is a structure schematic diagram of the extrusion frame of the embodiment two of the utility model. DETAILED DESCRIPTION

[0038] The utility model will be further described in combination with the drawings and specific embodiments. Embodiment one

[0039] Reference Figures 1 to 4The utility model discloses an extrusion frame can be automatic sewing, including the shape and the extrusion frame body 101 of the consistent opening of external box, the upper end part 102 of extrusion frame body is soft plastic material quality, the lower end part 103 of extrusion frame body is hard plastic material quality, the upper end part and the lower end part of extrusion frame body 101 are integrally formed, the lower end part and the upper end part junction of extrusion frame body 101 are provided with the connecting protrusion 104 for increasing the connecting area of soft plastic and hard plastic integrally formed and set up upwards protruding, the upper end part 102 of extrusion frame body is provided with the upper clamping groove 105 for clamping external zip fastener or external box, the lower clamping groove 106 for clamping external box or external zip fastener, the lower end of extrusion frame body 103 is opened by the lower end face and is provided with the sewing guide groove 107 that cooperates with the external automatic sewing machine and is guided independently, the lower end of extrusion frame body 103 is located the inside or the outside of sewing guide groove 107 and is provided with the lining strip groove 108, preferably outside, so that the lining layer can cover sewing guide groove 107 and the sewing track line in the groove. The lining strip 109 is clamped and arranged in the lining strip groove 108, the upper end of the lining strip 109 is clamped and fixed in the lining strip groove 108, and the lower end is sewn and connected with the external lining layer. The lining strip 109 is made of soft plastic material or hard plastic material or metal material, preferably soft plastic material, so as to facilitate sewing; when using metal material, a sewing hole needs to be pressed at the lower end of the lining strip 109, and the needle is sewn along the sewing hole with the sewing thread. The other side of the lower end of the extrusion frame body 103 away from the lining strip groove 108 is integrally provided with a reinforcing strip 110 for increasing the deformation resistance of the sewing guide groove 107 to increase the strength of the extrusion frame body 101, the inside of the reinforcing strip 110 is hollow to reduce the weight of the extrusion frame and facilitate material saving.

[0040] The lower groove of the lower clamping groove 106 is concave downward and provided with a first groove for avoiding the needle hole of the box when sewing, and making the sewing track line more flat. The upper groove bottom of the sewing guide groove 107 is provided with a reinforcing protrusion 112 for strengthening the anti-eversion deformation strength of the sewing guide groove 107, and the inner and outer sides of the reinforcing protrusion 112 and the inner and outer groove walls of the sewing guide groove 107 form an acute angle. The middle part of the reinforcing protrusion 112 is upwardly provided with a second groove for reducing the thickness of the needle of the external automatic sewing machine, and the highest point of the second groove is located on the same plane as the lowest point of the first groove. The sewing track 114 between the extrusion frame body 101 and the external box and the external zip fastener passes through the external zip fastener, the lower groove wall of the upper clamping groove 105, the external box, the first groove 111 and the second groove 113 in sequence from the upper surface of the external zip fastener vertically downward.

[0041] The inner groove wall and the outer groove wall of the inner lining strip groove 108 are respectively provided with a first inner clamping protrusion 115 and a first outer clamping protrusion 116, and the inner side and the outer side of the upper end of the inner lining strip 109 are respectively provided with a second inner clamping protrusion 117 and a second outer clamping protrusion 118 which are clamped with the first inner clamping protrusion 115 and the first outer clamping protrusion 116. The inner groove wall of the inner lining strip groove 108 is provided with an inwardly inclined inclined surface 119 at the lower end, and the lower end of the inner lining strip 109 is inwardly inclined and is in close contact with the inclined surface 119, which is beneficial to the smooth transition of the edge of the lining layer after sewing and extrusion frame, so that the lining layer is in close contact with the inner wall of the box.

[0042] Further, the outer groove wall of the inner lining strip groove 108 extends inwardly to increase the assembly stability of the inner lining strip 109, and covers the sewing line 120 on the upper end of the inner lining strip 109 which is connected with the outer lining layer to increase the beauty of the interior of the luggage.

[0043] Further, the outer groove wall of the inner lining strip groove 108 is provided with an avoiding groove 121 at the lower end for avoiding the sewing line of the lower end of the inner lining strip 109. Embodiment two

[0044] Reference Figure 5 and Figure 6The utility model discloses an extrusion frame can be automatic sewing, including the shape and the extrusion frame body 201 of the consistent opening of external box, the upper end part 202 of extrusion frame body is soft plastic material quality, the lower end part 203 of extrusion frame body is hard plastic material quality, the upper end part and the lower end part of extrusion frame body 201 are integrally formed, the lower end part of extrusion frame body 201 is provided with the connecting protrusion 204 for increasing the connecting area of soft plastic and hard plastic integrally formed at the upper end part and the lower end part junction upward protruding, the upper end part 202 of extrusion frame body is provided with the upper clamping groove 205 for clamping external zip fastener or external box, the lower clamping groove 206 for clamping external box or external zip fastener, the lower end of extrusion frame body 203 is provided with the sewing guide groove 207 that cooperates with the external automatic sewing machine and is guided by the lower end face upward, the inner side or the outer side of the sewing guide groove 207 is provided with the lining strip groove 208 of the lower end of extrusion frame body 203, preferably the outer side, so that the lining layer can cover the sewing guide groove 207 and the sewing trajectory line in the groove. The lining strip 209 is clamped and arranged in the lining strip groove 208, the upper end of the lining strip 209 is clamped and fixed to the lining strip groove 208, and the lower end is sewn and connected with the external lining layer. The lining strip 209 is of soft plastic material or hard plastic material or metal material, preferably soft plastic material, so as to facilitate sewing. The other side of the lower end of extrusion frame body 203 away from the lining strip groove 208 is integrally provided with the reinforcing strip 210 for increasing the deformation resistance of the sewing guide groove 207 to increase the strength of the extrusion frame body 201, the inside of the reinforcing strip 210 is hollow to reduce the weight of the extrusion frame, and it is beneficial to save materials.

[0045] The lower groove of the lower clamping groove 206 is concave downward and provided with a first groove 211 for avoiding the concave-convex unevenness of the box needle hole when sewing, so as to make the sewing trajectory line more flat. The upper groove bottom of the sewing guide groove 207 is provided with a reinforcing protrusion 212 upward for strengthening the anti-eversion deformation strength of the sewing guide groove 207, and the inner and outer sides of the reinforcing protrusion 212 and the inner and outer groove walls of the sewing guide groove 207 form an acute angle. The middle part of the reinforcing protrusion 212 is upwardly provided with a second groove 213 for reducing the thickness of the needle of the external automatic sewing machine, and the highest point of the second groove 213 and the lowest point of the first groove 211 are located on the same plane. The sewing trajectory 214 between the extrusion frame body 201 and the external box and the external zip fastener passes through the external zip fastener, the lower groove wall of the upper clamping groove 205, the external box, the first groove 211 and the second groove 213 in sequence from the upper surface of the external zip fastener vertically downward.

[0046] The notch 215 of the inner strip slot 208 is communicated with the stitching guide slot 207, the upper end of the inner strip 209 is clamped in the inner strip slot 208, the lower end of the inner strip 209 is inclined to the stitching guide slot 207, and the width of the upper end of the inner strip 209 is greater than the width of the notch 215 of the inner strip slot 208. The inner wall of the inner strip slot 208 is provided with a limiting protrusion 216 for abutting the upper and lower sides of the inner strip 209 to limit the up-and-down movement of the inner strip 209.

[0047] Based on the foregoing embodiment one and embodiment two, referring to Figure 3 and Figure 4 , the stitching trajectory 301 between the extrusion frame body and the external zipper and the box body can also be: the stitching trajectory between the extrusion frame body and the external box body and the external zipper vertically downwardly sequentially passes through the upper slot wall of the upper clamping slot, the external zipper, the lower slot wall of the upper clamping slot, the external box body, and the stitching guide slot through the first groove and the second groove;

[0048] Further, the outer surface of the upper slot wall of the upper clamping slot is provided with a parallel protrusion 302 on the inner and outer sides of the stitching trajectory for weakening the presence of the stitching line and improving the appearance of the luggage zipper after stitching.

[0049] Based on the foregoing embodiment one and embodiment two, referring to Figure 2 、 Figure 4 、 Figure 6 , the lower end of the inner layer is further provided with a zipper 303, one side of the zipper is stitched to the lower end of the inner strip, and the other side of the zipper is stitched to the outer inner layer. The zipper, the inner strip and the inner layer can also be fixed by gluing. The inner strip and the inner layer can also be directly glued and fixed.

[0050] The basic principle and main features of the utility model and its advantages are shown and described above, and those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only to illustrate the principle of the utility model, and various changes and improvements can be made to the utility model without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed, and the scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. An extruded frame for automatic sewing of a vehicle comprising an extruded frame body shaped to conform to an opening of an outer box, characterized in that: The upper end of the extrusion frame body is made of soft plastic material, and the lower end of the extrusion frame body is made of hard plastic material; the upper end of the extrusion frame body is provided with an upper clamping groove and a lower clamping groove, and the lower end of the extrusion frame body is provided with a self-guiding suture guide groove upwardly opened from the lower end surface; the lower end of the extrusion frame body is provided with an inner strip groove on the inner side or the outer side of the suture guide groove, and an inner strip is clamped in the inner strip groove; the upper end of the inner strip is clamped and fixed in the inner strip groove, and the lower end is sutured to an external inner layer.

2. An auto-hem flange according to claim 1, wherein: The lower groove surface of the lower clamping groove is downwardly concave and provided with a first groove.

3. An auto-hem flange according to claim 2, wherein: The upper groove bottom of the suture guide groove is downwardly convexly provided with a reinforcing protrusion for strengthening the anti-eversion deformation strength of the suture guide groove, and the inner and outer sides of the reinforcing protrusion and the inner and outer groove walls of the suture guide groove form acute included angles.

4. An auto-hem flange according to claim 3, wherein: The middle part of the reinforcing protrusion is upwardly provided with a second groove for reducing the thickness of the needle of an external automatic sewing machine.

5. An auto-hem flange according to claim 4, wherein: The suture trajectory between the extrusion frame body and the external box and the external zipper vertically passes through the external zipper, the lower groove wall of the upper clamping groove, the external box, and the suture guide groove in sequence from the upper surface of the external zipper downwardly.

6. An auto-hem flange according to claim 4, wherein: The suture trajectory between the extrusion frame body and the external box and the external zipper vertically passes through the upper groove wall of the upper clamping groove, the external zipper, the lower groove wall of the upper clamping groove, the external box, and the suture guide groove in sequence from the upper groove wall of the upper clamping groove downwardly.

7. An auto-hem flange according to claim 6, wherein: The outer surface of the upper groove wall of the upper clamping groove is provided with a parallel protrusion parallel to the suture trajectory on the inner and outer sides of the suture trajectory.

8. An auto-hem flange according to claim 1, wherein: The lower end of the inner layer is further provided with a zipper, one side of the zipper tape is sutured to the lower end of the inner strip, and the other side of the zipper tape is sutured to the external inner layer.

9. An auto-hem flange according to claim 1, wherein: The upper end and the lower end of the extrusion frame body are integrally formed, and the lower end of the extrusion frame body is upwardly provided with a connecting protrusion for increasing the connecting area of the integrally formed soft plastic and hard plastic.

10. An auto-hem flange according to claim 1, wherein: The inner strip is made of soft plastic material, hard plastic material, or metal material.

11. An auto-hem flange according to claim 1, wherein: The lower end of the extrusion frame body is integrally provided with a reinforcing strip on the other side away from the inner strip groove for increasing the deformation resistance of the suture guide groove to increase the strength of the extrusion frame body.

12. An auto-hem flange according to any one of claims 1-11, wherein: The inner and outer groove walls of the inner strip groove are respectively provided with first inner and outer clamping protrusions, and the inner and outer sides of the upper end of the inner strip are respectively provided with second inner and outer clamping protrusions clamped with the first inner and outer clamping protrusions.

13. An auto-hem flange according to claim 12, wherein: The inner groove wall of the inner strip groove is provided with an inwardly inclined inclined surface at the lower end, and the lower end of the inner strip is inwardly inclined and abuts against the inclined surface.

14. An auto-hem flange according to claim 13, wherein: The outer groove wall of the inner strip groove extends inwardly and covers the suture line on the inner strip.

15. An auto-hem flange according to claim 14, wherein: The lower end of the outer groove wall of the inner strip groove is provided with an avoiding groove for avoiding the suture line at the lower end of the inner strip.

16. An auto-hem flange according to any one of claims 1-11, wherein: The groove opening of the inner strip groove is connected with the suture guide groove, the upper end of the inner strip is clamped in the inner strip groove, and the lower end of the inner strip is inclined to the suture guide groove, and the width of the upper end of the inner strip is greater than the width of the groove opening of the inner strip groove.

17. An auto-hem flange according to claim 16, wherein: The inner lining strip slot inner wall is provided with a limiting protrusion for limiting the activity of the inner lining strip.

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