Edge covering mechanism of fabric sewing machine

By designing the edge wrapping mechanism of the fabric sewing machine, the automatic organization and transportation of edge wrapping strips is achieved using guide barrels, press bars, slide rods and springs, solving the problem of sewing insolation caused by manual control and improving the edge wrapping speed and quality.

CN222499626UActive Publication Date: 2025-02-18DONGGUAN TIANHONG TEXTILE CO LTD
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Patent Information

Application Number
CN202420398382.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-03-01
Publication Date
2025-02-18
Estimated Expiration
2034-03-01

AI Technical Summary

Technical Problem

During the fabric sewing process, the folding thickness of the edge wrap strips is not smooth, resulting in a reduction in the edge wrapping speed.

Method used

A edging mechanism of a fabric sewing machine is designed. By setting up a guide cylinder, a press bar, a slide rod and a spring, the automatic tidying and conveying of the edging strips is achieved to ensure the neatness and stability of the edging strips during the sewing process.

Benefits of technology

By automatically organizing and conveying edge strips, the edge speed and quality are improved, and the problem of unsmoothness caused by manual control is solved.

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Abstract

The utility model discloses a hemming mechanism of a fabric sewing machine, which comprises a fixing strip, a guide cylinder is fixed at the front end of one side of the fixing strip, a side plate is fixed at the rear end of one side of the fixing strip, a connecting frame is fixed at one side of the side plate, a sliding hole is fixed at the top end of the connecting frame, a sliding rod is arranged in the sliding hole, and the sliding rod is connected with the side plate. A top piece is fixed to the top end of the sliding rod, a pressing strip is fixed to the bottom end of the sliding rod, a spring is arranged at the bottom of the outer side of the sliding rod, a mounting groove is formed in each mounting piece, and a mounting bolt is arranged in each mounting groove. Through the arrangement of the pressing strip, an edge covering strip can be conveyed into the connecting frame through the guide cylinder and then conveyed to a sewing position, the limiting function is achieved through the pressing strip, the pressing strip presses the edge covering strip downwards under the elastic effect of the spring, meanwhile, the pressing strip can drive the sliding rod to slide in the sliding hole, and the pressing strip can press and arrange the edge covering strip downwards; and therefore, the regularity of the edge covering strip during conveying can be ensured.
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Description

Technical Field

[0001] The utility model relates to the technical field of fabric sewing, in particular to an edge binding mechanism of a fabric sewing machine. Background Art

[0002] Fabric is a flat soft piece of material formed by crossing, entanglement and connection of silk threads. Fabric is composed of yarns in a connected relationship. Many yarns form a stable relationship to form fabric. Sewing machine is a machine that sews fabrics together with one or more silk threads. The sewn lines are neat, beautiful, flat and firm, the sewing speed is fast and easy to use. When sewing fabrics, the hemming process technology is more important, and the hemming area is very wide. Before hemming, the hemming strips need to be pre-arranged and connected, and then the hemming strips are sewn to the edge of the fabric or the seam. Generally, an hemming mechanism is used to pre-fold and arrange the hemming strips.

[0003] In actual use, the hemming strip is introduced into the hemming mechanism, and then sewn to the seam of the fabric after the hemming strip is transported. Before sewing, the folding thickness of the hemming strip needs to be manually controlled. This method is not smooth during the sewing process and will reduce the hemming speed. Therefore, a hemming mechanism of a fabric sewing machine is proposed to solve the problems pointed out in the above background technology. Utility Model Content

[0004] The purpose of the utility model is to provide an edge binding mechanism for a fabric sewing machine to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a hemming mechanism of a fabric sewing machine comprises a fixing strip, a guide cylinder is fixed on the front end of one side of the fixing strip, a side plate is fixed on the rear end of one side of the fixing strip, a connecting frame is fixed on one side of the side plate, a sliding hole is fixed on the top of the connecting frame, a sliding rod is arranged inside the sliding hole, a top plate is fixed on the top of the sliding rod, a pressure strip is fixed on the bottom end of the sliding rod, a spring is arranged at the bottom of the outer side of the sliding rod, a reserved hole is arranged on the top of the connecting frame, a connecting piece is fixed on the other side of the fixing strip, a connecting shell is fixed on one side of the connecting piece, a connecting strip is arranged inside the connecting shell, a fixing piece is fixed on one side of the connecting strip, a mounting piece is fixed on one side of the fixing piece, mounting grooves are arranged inside the mounting pieces, and mounting bolts are arranged inside the mounting grooves.

[0006] Preferably, the inner diameter of the sliding hole is larger than the outer diameter of the sliding rod, and a sliding structure is formed between the sliding hole and the sliding rod.

[0007] Preferably, a thread hole is fixed on one side of the connecting frame, a threaded rod is arranged inside the thread hole, a turning handle is fixed on one side of the threaded rod, a baffle is movably connected to the other side of the threaded rod, a slider is fixed to the bottom end of the baffle, and a sliding groove is arranged inside the side panel.

[0008] Preferably, the inner diameter of the thread hole is larger than the outer diameter of the threaded rod, and the thread hole and the threaded rod are connected by a thread.

[0009] Preferably, the outer diameter of the sliding block is smaller than the inner diameter of the sliding groove, and a sliding structure is formed between the sliding block and the sliding groove.

[0010] Preferably, a reserved groove is provided at the top end inside the connecting shell, and a positioning pin is provided at one side inside the reserved groove.

[0011] Preferably, the cross section of the connecting strip is smaller than the cross section of the connecting shell, and the connecting strip and the connecting shell are matched with each other.

[0012] Preferably, the inner diameter of the reserved groove is larger than the outer diameter of the positioning pin, and the reserved groove and the positioning pin are matched with each other.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] By providing a pressure strip, the edge strip will be transported to the inside of the connection frame through the guide cylinder, and then transported to the sewing place. The pressure strip plays a role of limiting. The pressure strip presses down the edge strip due to the elastic force of the spring. At the same time, the pressure strip drives the slide bar to slide inside the slide hole. The pressure strip can press down and tidy the edge strip, thereby ensuring the neatness of the edge strip during transportation;

[0015] By providing a stop bar, when the edge strip is narrow, the handle is rotated, the handle drives the screw rod to rotate, and the screw rod rotates inside the screw hole. At this time, the screw rod drives the stop bar to move to one side, and the stop bar drives the slider to slide inside the slide groove. The side of the edge strip can be blocked by the stop bar, thereby playing a role of pressing and positioning, ensuring that the edge strip is always at the same width;

[0016] By providing a connecting shell, when the position of the guide cylinder needs to be adjusted, the positioning pin is rotated so that the positioning pin moves upward, thereby releasing the top of the connecting strip, and then the connecting shell is pulled to one side to a suitable position, and the positioning pin is rotated in the opposite direction so that the positioning pin moves downward, and the positioning pin locks the connecting shell and the connecting strip to ensure that the connecting shell is in a tightened state. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the cross-sectional structure of the utility model in a top view;

[0019] Figure 2 It is a schematic diagram of the top view structure of the utility model;

[0020] Figure 3 This is a front view structural diagram of the connection frame of the utility model;

[0021] Figure 4 For the utility model Figure 1 Enlarged structural diagram at A in the middle.

[0022] Description of reference numerals in the figures:

[0023] 1. Fixing strip; 2. Side panel; 3. Slide groove; 4. Stop strip; 5. Connecting frame; 6. Turn handle; 7. Thread hole; 8. Guide cylinder; 9. Connecting piece; 10. Connecting shell; 11. Reserved groove; 12. Positioning pin; 13. Connecting strip; 14. Fixing piece; 15. Mounting piece; 16. Mounting groove; 17. Mounting bolt; 18. Slider; 19. Pressure strip; 20. Spring; 21. Slide hole; 22. Top piece; 23. Sliding rod; 24. Threaded rod; 25. Reserved hole. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Example 1: Please refer to Figure 1-4The utility model provides an embodiment: a hemming mechanism of a fabric sewing machine, comprising a fixing strip 1, a guide cylinder 8 is fixed to the front end of one side of the fixing strip 1, a side plate 2 is fixed to the rear end of one side of the fixing strip 1, a connecting frame 5 is fixed to one side of the side plate 2, a sliding hole 21 is fixed to the top of the connecting frame 5, a sliding rod 23 is arranged inside the sliding hole 21, a top plate 22 is fixed to the top of the sliding rod 23, a pressure strip 19 is fixed to the bottom end of the sliding rod 23, a spring 20 is arranged at the bottom of the outer side of the sliding rod 23, and the inside of the connecting frame 5 A reserved hole 25 is provided at the top end, a connecting piece 9 is fixed to the other side of the fixing strip 1, a connecting shell 10 is fixed to one side of the connecting piece 9, a connecting strip 13 is provided inside the connecting shell 10, a fixing piece 14 is fixed to one side of the connecting strip 13, a mounting piece 15 is fixed to one side of the fixing piece 14, a mounting groove 16 is provided inside the mounting piece 15, a mounting bolt 17 is provided inside the mounting groove 16, the inner diameter of the sliding hole 21 is larger than the outer diameter of the sliding rod 23, and a sliding structure is formed between the sliding hole 21 and the sliding rod 23;

[0026] Specifically, Figure 1 and Figure 3 As shown, the edge strip will be transported to the inside of the connecting frame 5 through the guide cylinder 8, and then transported to the sewing place, and the pressure strip 19 plays a role of limiting. The pressure strip 19 presses the edge strip down due to the elastic force of the spring 20, and at the same time, the pressure strip 19 drives the slide bar 23 to slide inside the slide hole 21. The pressure strip 19 can press the edge strip down and arrange it, thereby ensuring the neatness of the edge strip when it is transported;

[0027] Embodiment 2: A thread hole 7 is fixed on one side of the connection frame 5, a threaded rod 24 is arranged inside the thread hole 7, a rotating handle 6 is fixed on one side of the threaded rod 24, a blocking bar 4 is movably connected to the other side of the threaded rod 24, a slider 18 is fixed to the bottom end of the blocking bar 4, a slide groove 3 is arranged inside the side plate 2, the inner diameter of the thread hole 7 is larger than the outer diameter of the threaded rod 24, the thread hole 7 and the threaded rod 24 are threadedly connected, the outer diameter of the slider 18 is smaller than the inner diameter of the slide groove 3, and a sliding structure is formed between the slider 18 and the slide groove 3;

[0028] Specifically, Figure 1 , Figure 3 and Figure 4 As shown, when the edge strip is narrow, the handle 6 is rotated, the handle 6 drives the screw rod 24 to rotate, and the screw rod 24 rotates inside the thread hole 7. At this time, the screw rod 24 drives the blocking bar 4 to move to one side, and the blocking bar 4 drives the slider 18 to slide inside the slide groove 3. The blocking bar 4 can block the side of the edge strip, thereby playing a role of pressing and positioning, ensuring that the edge strip is always at the same width;

[0029] Embodiment 3: A reserved groove 11 is provided at the top of the connection shell 10, a positioning pin 12 is provided on one side of the reserved groove 11, the cross section of the connection bar 13 is smaller than the cross section of the connection shell 10, the connection bar 13 and the connection shell 10 are matched, the inner diameter of the reserved groove 11 is larger than the outer diameter of the positioning pin 12, and the reserved groove 11 and the positioning pin 12 are matched;

[0030] Specifically, Figure 1 and Figure 2 As shown, when the position of the guide cylinder 8 needs to be adjusted, the positioning pin 12 is rotated so that the positioning pin 12 moves upward, thereby releasing the top of the connecting strip 13, and then the connecting shell 10 is pulled to one side to a suitable position, and the positioning pin 12 is rotated in the opposite direction so that the positioning pin 12 moves downward, and the positioning pin 12 locks the connecting shell 10 and the connecting strip 13 to ensure that the connecting shell 10 is in a tightened state.

[0031] Working principle: When the utility model is in use, the positioning pin 12 is rotated, the positioning pin 12 will move upward, and then the top of the connecting strip 13 can be released, and then the connecting shell 10 is pulled to one side to pull the connecting shell 10 to a suitable position, and the positioning pin 12 is rotated in the opposite direction, and the positioning pin 12 will move downward. The positioning pin 12 will lock the connecting shell 10 and the connecting strip 13, and the edging strip will be transported to the inside of the connecting frame 5 through the guide cylinder 8, and then transported to the sewing place, and the pressure strip 19 will play a limiting role. The pressure strip 19 presses the edging strip down due to the elastic force of the spring 20. At the same time, the pressure strip 19 will drive the slide bar 23 to slide in the slide hole 21. The pressure strip 19 can press the edging strip down to complete the use of the edging mechanism.

[0032] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A hemming mechanism for a fabric sewing machine, comprising a fixing strip (1), characterized in that: A guide cylinder (8) is fixed to the front end of one side of the fixing strip (1), a side plate (2) is fixed to the rear end of one side of the fixing strip (1), a connecting frame (5) is fixed to one side of the side plate (2), a sliding hole (21) is fixed to the top end of the connecting frame (5), a sliding rod (23) is arranged inside the sliding hole (21), a top plate (22) is fixed to the top end of the sliding rod (23), a pressure strip (19) is fixed to the bottom end of the sliding rod (23), a spring (20) is arranged at the bottom of the outer side of the sliding rod (23), and the connecting frame ( 5) A reserved hole (25) is provided at the top end of the interior, a connecting piece (9) is fixed to the other side of the fixing strip (1), a connecting shell (10) is fixed to one side of the connecting piece (9), a connecting strip (13) is provided inside the connecting shell (10), a fixing piece (14) is fixed to one side of the connecting strip (13), a mounting piece (15) is fixed to one side of the fixing piece (14), a mounting groove (16) is provided inside the mounting piece (15), and a mounting bolt (17) is provided inside the mounting groove (16).

2. The hemming mechanism of a fabric sewing machine according to claim 1, characterized in that: The inner diameter of the sliding hole (21) is greater than the outer diameter of the sliding rod (23), and a sliding structure is formed between the sliding hole (21) and the sliding rod (23).

3. The hemming mechanism of a fabric sewing machine according to claim 1, characterized in that: A thread hole (7) is fixed on one side of the connection frame (5), a threaded rod (24) is arranged inside the threaded rod (7), a rotating handle (6) is fixed on one side of the threaded rod (24), a blocking bar (4) is movably connected to the other side of the threaded rod (24), a slider (18) is fixed to the bottom end of the blocking bar (4), and a sliding groove (3) is arranged inside the side plate (2).

4. The hemming mechanism of a fabric sewing machine according to claim 3, characterized in that: The inner diameter of the thread hole (7) is greater than the outer diameter of the threaded rod (24), and the thread hole (7) and the threaded rod (24) are threadedly connected.

5. The hemming mechanism of a fabric sewing machine according to claim 3, characterized in that: The outer diameter of the sliding block (18) is smaller than the inner diameter of the sliding groove (3), and a sliding structure is formed between the sliding block (18) and the sliding groove (3).

6. The hemming mechanism of a fabric sewing machine according to claim 1, characterized in that: A reserved groove (11) is provided at the top end of the connection shell (10), and a positioning pin (12) is provided at one side of the reserved groove (11).

7. The hemming mechanism of a fabric sewing machine according to claim 6, characterized in that: The cross section of the connecting strip (13) is smaller than the cross section of the connecting shell (10), and the connecting strip (13) and the connecting shell (10) are adapted to each other.

8. The hemming mechanism of a fabric sewing machine according to claim 6, characterized in that: The inner diameter of the reserved groove (11) is greater than the outer diameter of the positioning pin (12), and the reserved groove (11) and the positioning pin (12) are matched with each other.