High-speed double-thread chained sewing machine

Abstract

The utility model discloses a high-speed double-thread chained sewing machine which comprises a base and a sewing mechanism. A placing table is arranged on the front side of the upper end of the base, a machine body is arranged on the rear side of the upper end of the base, and a cavity is formed in the front side in the machine body; the sewing mechanism comprises a mounting rod, a machine needle, a mounting groove and a shuttle hook, the mounting rod is in sliding connection with a sliding hole formed in the middle of the bottom wall of the cavity, the machine needle is arranged at the lower end of the mounting rod, the mounting groove is formed in the front side of the interior of the containing table, and the shuttle hook is rotationally connected to the middle of the left wall of the mounting groove through a bearing; the control switch is arranged at the right end of the machine body, the input end of the control switch is electrically connected with an external power source, the sewing mechanism further comprises a presser foot, and the presser foot is arranged on the front side of the lower end of the machine body. And the sewing efficiency of the high-speed double-thread chain type sewing machine is further improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to sewing equipment technical field, concretely is high -speed double -thread chain type sewing machine. BACKGROUND

[0002] High -speed double -thread chain type sewing machine is a kind of sewing equipment with high efficiency, precision and wide applicability, double -thread chain type sewing machine has high -speed high -efficient sewing capacity, because its double -thread sewing mode makes the speed of sewing very fast, efficiency is significantly improved, in addition, the stitch sewn is very neat, and it is not easy to appear broken needle, needle skipping phenomenon, to ensure the precision of sewing effect;

[0003] High -speed double -thread chain type sewing machine has two threads in the sewing process simultaneously participate in sewing, form specific stitch, specifically, when needle drops, needle passes from the upper direction of cloth to down, the upper thread is merged together, form a line seam, when needle lifts, external driving device drives shuttle to rotate, shuttle drives the lower thread to pass through line seam, form a small ring, subsequently, needle drives the upper thread to pass through this small ring, shuttle drives the lower thread to move reset, in the process of shuttle movement, the lower thread will pull the upper thread to lift, to form a new line seam, this process is cyclic, to realize the sewing effect of high -speed double -thread chain type sewing machine;

[0004] The existing high -speed double -thread chain type sewing machine is usually driven by crank to move needle during working, the crank structure is relatively simple, easy to manufacture and maintain, the reliability of this structure makes sewing machine more stable during use, reduces the possibility of failure, but because the motion trajectory of crank is fixed, the movement trajectory of needle in the sewing process is also relatively fixed, so it will appear because needle cannot adapt to the thickness of various cloth, subsequent usually needs to replace driving device, to affect the sewing efficiency of high -speed double -thread chain type sewing machine, for this, we propose high -speed double -thread chain type sewing machine. INVENTION CONTENTS

[0005] The utility model solves the technical problem to overcome the existing defects, provides high -speed double -thread chain type sewing machine, and the cooperation of adjusting plate and adjusting rod is set up, can drive needle to carry out vertical reciprocating motion, to carry out sewing work to cloth, adjusting needle movement range according to the thickness of cloth also can, simple operation further improves the sewing efficiency of high -speed double -thread chain type sewing machine, can effectively solve the problem in background art.

[0006] To realize the above-mentioned purpose, the utility model provides the following technical scheme: high -speed double -thread chain type sewing machine, including base and sewing mechanism;

[0007] The base is provided with a placing table at the front of the upper end, and a body at the rear of the upper end, and a cavity is arranged at the front of the inside of the body;

[0008] The sewing mechanism comprises a mounting rod, a needle, a mounting groove and a swing shuttle, the mounting rod is slidably connected with a sliding hole arranged in the middle of the bottom wall of the cavity, the lower end of the mounting rod is provided with the needle, the mounting groove is arranged at the front of the inside of the placing table, the swing shuttle is rotatably connected with the left wall of the mounting groove through a bearing, and is arranged in cooperation with the adjusting plate and the adjusting rod, so that the needle can be driven to vertically reciprocate, thereby sewing the cloth, and the moving range of the needle can be adjusted according to the thickness of the cloth, so that the sewing efficiency of the high-speed double-thread chain sewing machine is further improved.

[0009] Further, a control switch is arranged at the right end of the body, the input end of the control switch is electrically connected with an external power supply, and the electrical elements in the equipment can be controlled.

[0010] Further, the sewing mechanism further comprises a presser foot arranged at the front of the lower end of the body, and the cloth can be fixed.

[0011] Further, an adjusting plate, a motor, a central wheel, an adjusting seat and an adjusting rod are further arranged, the adjusting plate is arranged at the upper end of the mounting rod, the middle of the front end of the adjusting plate is provided with an adjusting groove, the motor is arranged at the upper side of the rear wall of the cavity, the central wheel is arranged at the front end of the output shaft of the motor, the adjusting seat is slidably connected with the sliding groove arranged at the upper side of the front end of the central wheel, the adjusting rod is arranged at the front end of the adjusting seat, the adjusting rod is arranged in the adjusting groove, the input end of the motor is electrically connected with the output end of the control switch, and the needle can be driven to move.

[0012] Further, a screw rod is further arranged, the screw rod is rotatably connected with the middle of the bottom wall of the sliding groove through a bearing, and the screw rod is screwedly connected with the threaded hole arranged in the middle of the lower end of the adjusting seat, so that the adjusting rod can be driven to move by the adjusting seat.

[0013] Further, an adjusting knob is further arranged, the adjusting knob is arranged at the lower end of the rod, and the adjusting seat can be driven to move by the screw rod.

[0014] Further, a baffle is further arranged, the baffle is arranged at the upper end of the screw rod, and the baffle can prevent the adjusting seat from being separated from the screw rod.

[0015] Compared with the prior art, the high-speed double-thread chain sewing machine has the following advantages:

[0016] After the fabric is fixed by the presser foot, the motor starts to run by the control of the control switch, the output shaft of the motor drives the center wheel to rotate, the center wheel drives the adjusting rod to rotate around the axis of the center wheel, because the axis of the adjusting rod and the center wheel is not coincident, the adjusting rod will produce horizontal and vertical displacement in the process of circular motion, and then the adjusting rod will relatively slide and rotate in the adjusting groove, and then with the operation of the motor, the adjusting rod drives the mounting rod to reciprocatingly move up and down through the adjusting plate, the mounting rod drives the needle to reciprocatingly move up and down, when sewing the fabric with high thickness, the moving range of the needle needs to be adjusted, at this time, the operator rotates the adjusting knob, the adjusting knob drives the screw rod to rotate, the screw rod drives the adjusting seat to move up through the threaded connection in the process of rotation, thereby adjusting the position of the adjusting rod, thereby adjusting the moving range of the needle, the cooperation of the adjusting plate and the adjusting rod can drive the needle to reciprocatingly move vertically, thereby sewing the fabric, and the moving range of the needle can also be adjusted according to the thickness of the fabric, the operation is simple, and the sewing efficiency of the high-speed double-line chain sewing machine is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 It is a structural schematic view of the utility model;

[0018] Fig. 2 It is a structural schematic view of the sewing mechanism of the utility model;

[0019] Fig. 3 It is a structural schematic view of the internal structure of the cavity.

[0020] In the drawing: 1 base, 2 machine body, 3 control switch, 4 placing table, 5 sewing mechanism, 51 mounting rod, 52 needle, 53 mounting groove, 54 shuttle, 55 presser foot, 6 cavity, 7 adjusting plate, 8 motor, 9 center wheel, 10 adjusting seat, 11 adjusting rod, 12 screw rod, 13 adjusting knob, 14 baffle. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0022] Please refer to Figs. 1-3 The embodiment provides a technical scheme: a high-speed double-line chain sewing machine, which comprises a base 1 and a sewing mechanism 5.

[0023] The base 1: the front side of its upper end is provided with a placing table 4, the rear side of the upper end of the base 1 is provided with the organism 2, the front side inside the organism 2 is provided with the cavity 6, before using, the cloth that needs to be sewn is placed on the upper end of the placing table 4, then the sewing equipment is moved by the drive equipment, so that the cloth is sewn;

[0024] The sewing mechanism 5: it includes the installation rod 51, the needle 52, the installation slot 53 and the shuttle 54, the installation rod 51 is slidably connected with the sliding hole that the middle part of the bottom wall of the cavity 6 is arranged, the lower end of the installation rod 51 is provided with the needle 52, the installation slot 53 is arranged on the front side inside the placing table 4, the left wall of the installation slot 53 is rotatably connected with the shuttle 54 through the bearing in the middle part, the sewing mechanism 5 further includes the presser foot 55, the presser foot 55 is arranged on the front side of the lower end of the organism 2, the high-speed double-thread chain sewing machine has two threads to participate in sewing simultaneously in the sewing process, forms a specific stitch, specifically, when the needle 52 drops, the upper thread is combined together when the needle 52 passes through from the cloth upper side to the lower side, forms a thread seam, when the needle 52 is lifted, the external drive equipment drives the shuttle 54 to rotate, the shuttle 54 drives the lower thread to pass through the thread seam, forms a small ring, then the needle 52 drives the upper thread to pass through this small ring, the shuttle 54 drives the lower thread to move to reset, in the process of moving of the shuttle 54, the lower thread will lift the upper thread again, thereby forming a new thread seam, the process is circular, thereby realizing the sewing effect of the high-speed double-thread chain sewing machine.

[0025] Among them: further include control switch 3, control switch 3 is arranged on the right end of the organism 2, the input end of control switch 3 is electrically connected with the external power supply, can control the electrical components inside the equipment.

[0026] Among them: further include adjusting plate 7, motor 8, circle center wheel 9, adjusting seat 10 and adjusting rod 11, adjusting plate 7 is arranged on the upper end of the installation rod 51, the middle part of the front end of adjusting plate 7 is provided with adjusting slot, motor 8 is arranged on the upper side of the rear wall of the cavity 6, circle center wheel 9 is arranged on the front end of the output shaft of motor 8, adjusting seat 10 is slidably connected with the sliding slot that the upper side of the front end of circle center wheel 9 is provided with, adjusting rod 11 is arranged on the front end of adjusting seat 10, adjusting rod 11 is located inside the adjusting slot, the input end of motor 8 is electrically connected with the output end of control switch 3, after the cloth is fixed through the presser foot 55, then through the control of control switch 3, motor 8 starts to run, the output shaft of motor 8 drives circle center wheel 9 to rotate, circle center wheel 9 will drive adjusting rod 11 to rotate around the axis of circle center wheel 9, because the adjusting rod 11 does not coincide with the axis of circle center wheel 9, then the adjusting rod 11 will produce horizontal and vertical displacement in the process of circular motion, thereby the adjusting rod 11 will relatively slide and relatively rotate in the adjusting slot, then with the operation of motor 8, adjusting rod 11 drives the installation rod 51 to move up and down reciprocatingly through adjusting plate 7, the installation rod 51 drives the needle 52 to move up and down reciprocatingly.

[0027] Further comprising a screw rod 12, the screw rod 12 is rotatably connected to the middle part of the bottom wall of the chute through a bearing, the screw rod 12 is threadedly connected with the threaded hole arranged in the middle part of the lower end of the adjusting seat 10, when sewing the cloth with high thickness, the moving range of the needle 52 needs to be adjusted, at this time, the operator rotates the adjusting device, the adjusting device drives the screw rod 12 to rotate, the screw rod 12 drives the adjusting seat 10 to move upward through the threaded connection in the process of rotating, so as to adjust the position of the adjusting rod 11.

[0028] Further comprising an adjusting knob 13, the adjusting knob 13 is arranged at the lower end of the rod 12, the operator rotates the adjusting knob 13, the adjusting knob 13 drives the screw rod 12 to rotate, the screw rod 12 drives the adjusting seat 10 to move upward through the threaded connection in the process of rotating, so as to adjust the position of the adjusting rod 11, thereby adjusting the moving range of the needle 52.

[0029] Further comprising a baffle 14, the baffle 14 is arranged at the upper end of the screw rod 12, the baffle 14 can prevent the adjusting seat 10 from being separated from the screw rod 12.

[0030] The working principle of the high-speed double-thread chain sewing machine is as follows: before use, the cloth to be sewn is placed on the upper end of the placing table 4, then the cloth is fixed through the presser foot 55, then the control switch 3 is controlled, the motor 8 starts to run, the output shaft of the motor 8 drives the center wheel 9 to rotate, the center wheel 9 drives the adjusting rod 11 to rotate around the axis of the center wheel 9, since the adjusting rod 11 does not coincide with the axis of the center wheel 9, the adjusting rod 11 will produce horizontal and vertical displacement in the process of circular motion, and then the adjusting rod 11 will relatively slide and rotate in the adjusting groove, and then with the running of the motor 8, the adjusting rod 11 drives the mounting rod 51 to reciprocatingly move up and down through the adjusting plate 7, and the mounting rod 51 drives the needle 52 to reciprocatingly move up and down, in the sewing process of the high-speed double-thread chain sewing machine, two threads participate in sewing at the same time, a specific stitch is formed, specifically, when the needle 52 descends, the upper thread is merged together when the needle 52 passes through from the upper end of the cloth to the lower end, forming a thread seam, when the needle 52 is lifted, the external driving device drives the swing shuttle 54 to rotate, the swing shuttle 54 drives the lower thread to pass through the thread seam, forming a small loop, then the needle 52 drives the upper thread to pass through the small loop, and the swing shuttle 54 drives the lower thread to move to reset, in the process of movement of the swing shuttle 54, the lower thread lifts the upper thread, thereby forming a new thread seam, the process is circular, thereby realizing the sewing effect of the high-speed double-thread chain sewing machine, when sewing the cloth with high thickness, the moving range of the needle 52 needs to be adjusted, at this time, the operator rotates the adjusting knob 13, the adjusting knob 13 drives the screw rod 12 to rotate, the screw rod 12 drives the adjusting seat 10 to move upward through the threaded connection in the process of rotation, thereby adjusting the position of the adjusting rod 11, thereby adjusting the moving range of the needle 52.

[0031] It is worth noting that the motor 8 disclosed in the above embodiment can be selected as 5IK200A-AF, and the control switch 3 is provided with a control button corresponding to the motor 8 for controlling the switch thereof.

[0032] The above is only an embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structure or equivalent process transformation in the utility model specification and the attached drawings, or direct or indirect application in other related technical fields, is also included in the patent protection range of the utility model.

Claims

1. A high speed twin-thread chain stitch sewing machine characterized by: It comprises a base (1) and a sewing mechanism (5). The base (1) is provided with a placing table (4) at the front side of its upper end, and a machine body (2) at the rear side of its upper end, and a cavity (6) is provided at the front side of the inside of the machine body (2). The sewing mechanism (5) comprises a mounting rod (51), a needle (52), a mounting groove (53) and a swing shuttle (54), the mounting rod (51) is slidably connected with a sliding hole provided at the middle of the bottom wall of the cavity (6), the lower end of the mounting rod (51) is provided with the needle (52), the mounting groove (53) is provided at the front side of the inside of the placing table (4), and the swing shuttle (54) is rotatably connected with the left wall of the mounting groove (53) through a bearing.

2. The high speed twin-thread chain stitch sewing machine according to claim 1, characterized in that: It further comprises a control switch (3) provided at the right end of the machine body (2), and the input end of the control switch (3) is electrically connected with an external power source.

3. The high speed twin-thread chain stitch sewing machine according to claim 1, characterized in that: The sewing mechanism (5) further comprises a presser foot (55) provided at the front side of the lower end of the machine body (2).

4. The high speed double thread chain stitch sewing machine according to claim 2, wherein: It further comprises an adjusting plate (7), a motor (8), a center wheel (9), an adjusting seat (10) and an adjusting rod (11), the adjusting plate (7) is provided at the upper end of the mounting rod (51), the middle of the front end of the adjusting plate (7) is provided with an adjusting groove, the motor (8) is provided at the upper side of the rear wall of the cavity (6), the center wheel (9) is provided at the front end of the output shaft of the motor (8), the adjusting seat (10) is slidably connected with a sliding groove provided at the upper side of the front end of the center wheel (9), the adjusting rod (11) is provided at the front end of the adjusting seat (10), the adjusting rod (11) is located inside the adjusting groove, and the input end of the motor (8) is electrically connected with the output end of the control switch (3).

5. The high speed double thread chain stitch sewing machine according to claim 4, wherein: It further comprises a screw rod (12) rotatably connected with the middle of the bottom wall of the sliding groove through a bearing, and the screw rod (12) is threadedly connected with a threaded hole provided at the middle of the lower end of the adjusting seat (10).

6. The high speed twin-thread chain stitch sewing machine according to claim 5, characterized in that: It further comprises an adjusting knob (13) provided at the lower end of the rod (12).

7. The high speed twin-thread chain stitch sewing machine according to claim 5, wherein: It further comprises a baffle (14) provided at the upper end of the screw rod (12).

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