Trousers waist machine

Abstract

The utility model provides a trouser waist machine, and belongs to the technical field of sewing equipment. The trouser waist machine comprises a machine frame, the machine frame is provided with an upper cloth dragging wheel assembly and a first lower cloth dragging wheel assembly, the machine frame is further provided with a first installation base and a second installation base, the angles of the first installation base and the second installation base can be adjusted, and the upper cloth dragging wheel assembly and the first lower cloth dragging wheel assembly are installed on the first installation base and the second installation base respectively. According to the trouser waist machine, the angles of the first installation base and the second installation base can be adjusted according to needs, the upper cloth dragging wheel component and the first lower cloth dragging wheel component conduct large-radian arc cloth dragging on cloth, large-radian sewing of a trouser waist is achieved, and the stitch sewing quality is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of sewing equipment and relates to a trouser waist machine. Background Art

[0002] In jeans, there is a process of sewing a curved waist, that is, the mopping wheel structure mops the cloth in an arc shape, so that the machine needle sews the cloth in an arc shape. For the working principle of arc shape sewing, reference can be made to a back-drag mechanism of a sewing machine provided in application number 201020542231.2.

[0003] In the prior art, the most common method for realizing this bending process is that the mop wheel only presses the outer arc part of the waist. The disadvantage of this method is that when the bending arc is relatively large, the sewing effect is often very unsatisfactory. Summary of the invention

[0004] The utility model aims at the above problems existing in the prior art and provides a trouser waist machine. The technical problem to be solved by the utility model is: how to sew the trouser waist with a large arc.

[0005] The purpose of the utility model can be achieved through the following technical solutions:

[0006] A trouser waist machine comprises a frame, on which an upper cloth mopping wheel assembly and a lower cloth mopping wheel assembly are arranged. The invention is characterized in that a mounting seat 1 and a mounting seat 2 with adjustable angles are also arranged on the frame, and the upper cloth mopping wheel assembly and the lower cloth mopping wheel assembly are respectively mounted on the mounting seat 1 and the mounting seat 2.

[0007] The working principle is as follows: in the trouser waist machine, the upper mop wheel assembly cooperates with the lower mop wheel assembly 1 to realize cloth feeding. The upper mop wheel assembly and the lower mop wheel assembly 1 are respectively mounted on the mounting seat 1 and the mounting seat 2. When bending over, it is only necessary to adjust the angles of the mounting seat 1 and the mounting seat 2, thereby adjusting the relative position of the upper mop wheel component and the lower mop wheel component 1, so that the upper mop wheel component cooperates with the lower mop wheel component 1, and the cloth is mopped in an arc shape, so that the machine can sew arc-shaped stitches on the cloth to form bending stitches.

[0008] The trouser waist sewing machine can adjust the angles of the mounting seat 1 and the mounting seat 2 as needed, so that the upper mopping wheel component and the lower mopping wheel component can perform arc mopping of the cloth in a relatively large arc, thereby achieving large arc sewing of the trouser waist, improving the stitch sewing quality, and ensuring a better sewing effect.

[0009] In the above-mentioned trouser waist knitting machine, the frame is further provided with a lower mopping wheel assembly 2 and an angle-adjustable mounting seat 3, and the lower mopping wheel assembly 2 is mounted on the mounting seat 3.

[0010] In the above-mentioned trouser waist machine, the mounting seat 1 includes a fixing plate 1 and a fixing plate 2, the fixing plate 1 is installed on the frame, the fixing plate 1 is provided with an arc groove 1 penetrating the fixing plate 1, the fixing plate 2 is installed below the fixing plate 1 by means of a screw 1, the screw 1 is passed through the arc groove 1 and can slide in the arc groove 1, and the upper mopping wheel assembly is installed on the fixing plate 2.

[0011] The upper mop wheel assembly is fixed on the fixing plate one through the fixing plate two. When the screw one is loosened, the fixing plate two is rotated. After adjusting the angle, the screw one is tightened to lock the fixing plate two on the fixing plate one, so as to conveniently adjust the angle of the upper mop wheel assembly.

[0012] The first fixing plate is provided with an arc groove, and after the second fixing plate is rotated by a certain angle, the first screw slides and changes its position, and the second fixing plate can still be fixed on the first fixing plate.

[0013] In the above-mentioned trouser waist machine, the upper mop wheel assembly includes a mounting frame 1, which is mounted on the fixed plate 2, and the mounting frame 1 is provided with a front mop wheel seat and a rear mop wheel seat which can be moved up and down, and the front mop wheel seat and the rear mop wheel seat are respectively mounted with a front mop wheel and a rear mop wheel.

[0014] The front mop wheel seat drives the front mop wheel to move downward, and together with the lower mop wheel component one, the cloth is pressed tightly. The front mop wheel rotates to drive the cloth forward. The rear mop wheel seat drives the rear mop wheel to move downward, and together with the lower mop wheel component two, the cloth is pressed tightly. The rear mop wheel rotates to drive the cloth forward. The rotation of both mop wheels drives the cloth forward to realize feeding.

[0015] In the above-mentioned trouser waist machine, the frame includes a needle plate seat, the lower mop wheel assembly 1 includes a roller 1, and the roller 1 is installed on the mounting seat 2. A group of mounting holes 1 is provided on one side of the needle plate seat, and a group of mounting holes 2 is provided on the other side of the needle plate seat. The two ends of the mounting seat 2 are respectively provided with screws 2, one of the screws 2 is threadedly connected to one of the mounting holes 1, and the other screw 2 is threadedly connected to one of the mounting holes 2.

[0016] The structure adjusts the installation angle of the mounting seat 2 by installing one screw 2 in a different mounting hole 1 and another screw 2 in a different mounting hole 2, thereby conveniently realizing the adjustment of the angle of the lower mop wheel assembly 1.

[0017] The front mop wheel seat drives the front mop wheel to move downward, and together with the roller, presses the cloth. The front mop wheel rotates to drive the cloth to move forward, thereby realizing feeding.

[0018] In the above-mentioned trouser waist machine, the mounting seat 3 includes a bracket 1 and a fixing plate 3, the fixing plate 3 is installed on the frame, the lower mop wheel assembly 2 includes a roller 2, the roller 2 is arranged on the upper part of the bracket 1, and the bottom of the bracket 1 is provided with an arc groove 2. The bottom of the bracket 1 is mounted on the fixing plate 3 by means of screws 3, and the screws 3 are passed through the arc groove 2 and can move along the arc groove 2.

[0019] When the screw three is loosened, the bracket one is rotated, and after the angle is adjusted, the screw three is tightened to lock the bracket one on the fixing plate three, so as to conveniently adjust the angle of the lower mop wheel assembly two.

[0020] The bracket 1 is provided with an arc groove 2. After the bracket 1 is rotated to a certain angle, the screw 3 slides and changes its position, and the bracket 1 can still be fixed on the fixing plate 3.

[0021] The rear mop wheel seat drives the rear mop wheel to move downward, and together with the second roller, presses the cloth. The rotation of the rear mop wheel drives the cloth to move forward, thereby realizing feeding.

[0022] In the above-mentioned trouser waist machine, a motor is arranged on the frame, an upper transmission shaft is connected to the output shaft of the motor, a lower transmission shaft is connected to the front mopping wheel, synchronous wheels are respectively sleeved on the upper transmission shaft and the lower transmission shaft, a synchronous belt is connected between the synchronous wheels, sprockets are respectively arranged on the mounting frame and the rear mopping wheel, and a chain is connected between the two sprockets.

[0023] The motor, the upper transmission shaft, the lower transmission shaft, the synchronous belt and the sprocket constitute the upper mop wheel driving part. The motor drives the upper transmission shaft to rotate. The upper transmission shaft drives the rear mop wheel to rotate through the chain and the sprocket. At the same time, the upper transmission shaft drives the lower driven shaft to rotate through the synchronous belt and the synchronous wheel. The lower driven shaft drives the front mop wheel to rotate. This structure drives the front and rear mop wheels to rotate at the same time by one motor. With a simplified structure, large-arc sewing of the trouser waist is achieved.

[0024] In the above-mentioned trouser waist machine, a mounting seat four is provided on the frame, a cutting knife assembly is provided on the mounting seat four, an arc groove three is provided on the mounting seat four, the mounting seat four is installed on the frame by means of screws four, the screws four are passed through the arc groove three and can move along the arc groove three.

[0025] When loosening screw four, rotate the mounting base four, adjust the angle, and then tighten screw four to lock the mounting base four on the frame, so as to conveniently adjust the angle of the cutter assembly to match the angle of the mop wheel, improve the convenience of operation, and also improve the sewing efficiency.

[0026] The mounting base 4 is provided with an arc groove 4. After the mounting base 4 is rotated to a certain angle, the screw 4 slides and changes its position, and the mounting base 4 can still be fixed on the rack.

[0027] As an embodiment, the cutter assembly includes a movable knife, a fixed knife, and a cylinder that drives the movable knife to swing so that the movable knife engages with the fixed knife. This is the prior art and will not be described in detail.

[0028] Compared with the prior art, the advantages of the utility model are as follows:

[0029] 1. The trouser waist sewing machine can adjust the angles of the mounting seat 1, the mounting seat 2 and the mounting seat 3 as needed, so that the upper mopping wheel component and the lower mopping wheel component 1 and the lower mopping wheel component 2 can perform arc mopping on the fabric with a larger arc, thereby realizing large arc sewing of the trouser waist and improving the stitch sewing quality.

[0030] 2. This trouser waist machine can simultaneously drive the front and rear mopping wheels to rotate through a motor, thereby achieving large-arc sewing of the trouser waist with a simplified structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a structural schematic diagram of the trouser waist machine;

[0032] Figure 2 This is a structural schematic diagram of the trouser waist machine from another perspective;

[0033] Figure 3 is a schematic diagram of the lower mop wheel assembly 1 being installed on the needle plate seat;

[0034] Figure 4 It is a schematic diagram of the upper mop wheel driving component being installed on the frame.

[0035] In the figure: 1 frame, 2 upper mop wheel assembly, 3 lower mop wheel assembly 1, 4 lower mop wheel assembly 2, 5 mounting seat 1, 6 mounting seat 2, 7 mounting seat 3, 8 fixing plate 1, 9 fixing plate 2, 10 arc groove 1, 11 screw 1, 12 mounting frame 1, 13 needle plate seat, 14 roller 1, 15 mounting hole 1, 16 mounting hole 2, 17 screw 2, 18 bracket 1, 19 fixing plate 3, 20 roller 2, 21 arc groove 2, 22 screw 3, 23 motor, 24 upper transmission shaft, 25 lower transmission shaft, 26 synchronous wheel, 27 synchronous belt, 28 sprocket, 29 chain, 30 mounting seat 4, 31 cutter assembly, 32 arc groove 3, 33 screw 4, 34 front mop wheel seat, 35 rear mop wheel seat, 36 front mop wheel, 37 rear mop wheel. DETAILED DESCRIPTION

[0036] The following are specific embodiments of the present invention, and the technical solution of the present invention is further described in conjunction with the accompanying drawings, but the present invention is not limited to these embodiments.

[0037] like Figure 1-3As shown, the trouser waist machine includes a frame 1, on which an upper mop wheel assembly 2, a lower mop wheel assembly 1 3 and a lower mop wheel assembly 2 4 are arranged, and the frame 1 is also provided with a mounting seat 1 5, a mounting seat 2 6 and a mounting seat 3 7, all of which are adjustable in angle. The upper mop wheel assembly 2, the lower mop wheel assembly 1 3 and the lower mop wheel assembly 2 4 are respectively mounted on the mounting seat 1 5, the mounting seat 2 6 and the mounting seat 3 7.

[0038] In the trouser waist machine, the upper mop wheel assembly 2 cooperates with the lower mop wheel assembly 1 3 and the lower mop wheel assembly 2 4 to realize cloth feeding. The upper mop wheel assembly 2, the lower mop wheel assembly 1 3 and the lower mop wheel assembly 2 4 are respectively mounted on the mounting seat 1 5, the mounting seat 2 6 and the mounting seat 3 7. When bending, it is only necessary to adjust the angles on the mounting seat 1 5, the mounting seat 2 6 and the mounting seat 3 7, thereby adjusting the relative positions of the upper mop wheel component and the lower mop wheel component 1 and the lower mop wheel component 2, so that the upper mop wheel component cooperates with the lower mop wheel component 1 and the lower mop wheel component 2, and the cloth is mopped in an arc shape, so that the machine can sew arc-shaped stitches on the cloth to form bending stitches.

[0039] like Figure 1 As shown, in this embodiment, a lower mop wheel assembly 2 4 and an angle-adjustable mounting seat 3 7 are also provided on the frame 1 , and the lower mop wheel assembly 2 4 is mounted on the mounting seat 3 7 .

[0040] The upper cloth-mopping wheel assembly 2 also cooperates with the lower cloth-mopping wheel assembly 2 4 to realize cloth feeding. The lower cloth-mopping wheel assembly 2 4 is installed on the mounting seat 3 7. When bending, the angles on the mounting seat 1 5, the mounting seat 2 6 and the mounting seat 3 7 can be adjusted to adjust the relative positions of the upper cloth-mopping wheel component 2 and the lower cloth-mopping wheel component 1 3 and the lower cloth-mopping wheel component 2 4, so that the upper cloth-mopping wheel component 2 cooperates with the lower cloth-mopping wheel component 1 3 and the lower cloth-mopping wheel component 2 4 to perform arc-shaped mopping on the cloth (the upper cloth-mopping wheel component 2 cooperates with the lower cloth-mopping wheel component 1 3 and the lower cloth-mopping wheel component 2 4 at the same time to form a double-pressing feeding structure), so that the machine needle can better sew arc-shaped stitches on the cloth to form bending stitches.

[0041] like Figure 1 As shown, in this embodiment, the mounting seat 5 includes a fixing plate 18 and a fixing plate 29. The fixing plate 8 is mounted on the frame 1. The fixing plate 8 is provided with an arc groove 10 penetrating the fixing plate 8. The fixing plate 29 is mounted below the fixing plate 8 by means of a screw 11. The screw 11 is penetrated through the arc groove 10 and can slide in the arc groove 10. The upper mop wheel assembly 2 is mounted on the fixing plate 29.

[0042] The upper mop wheel assembly 2 is fixed on the fixing plate 1 8 through the fixing plate 2 9. When the screw 11 is loosened, the fixing plate 2 9 is rotated. After adjusting the angle, the screw 11 is tightened to lock the fixing plate 2 9 on the fixing plate 1 8, so as to conveniently adjust the angle of the upper mop wheel assembly 2.

[0043] The fixing plate 18 is provided with an arc groove 10. After the fixing plate 29 is rotated to a certain angle, the screw 11 slides and changes its position, and the fixing plate 29 can still be fixed on the fixing plate 18.

[0044] like Figure 2 As shown, in this embodiment, the upper mop wheel assembly 2 includes a mounting frame 12, which is mounted on a fixing plate 9, and a front mop wheel seat 34 and a rear mop wheel seat 35 that can move up and down are provided on the mounting frame 12, and a front mop wheel 36 and a rear mop wheel 37 are respectively installed on the front mop wheel seat 34 and the rear mop wheel seat 35.

[0045] The front mop wheel seat 34 drives the front mop wheel 36 to move downward, and together with the lower mop wheel component 1, the cloth is pressed. The front mop wheel 36 rotates to drive the cloth forward. The rear mop wheel seat 35 drives the rear mop wheel 37 to move downward, and together with the lower mop wheel component 2, the cloth is pressed. The rear mop wheel 37 rotates to drive the cloth forward. The rotation of the two mop wheels drives the cloth forward to realize feeding.

[0046] like Figure 1 and 3 As shown, in this embodiment, the frame 1 includes a needle plate seat 13, the lower mop wheel assembly 13 includes a roller 14, the roller 14 is installed on the mounting seat 2 6, a group of mounting holes 15 is provided on one side of the needle plate seat 13, and a group of mounting holes 2 16 is provided on the other side of the needle plate seat 13, and screws 2 17 are respectively provided at two ends of the mounting seat 2 6, one screw 2 17 is threadedly connected to one of the mounting holes 15, and the other screw 2 17 is threadedly connected to one of the mounting holes 16.

[0047] There are more than two mounting holes 15 and two mounting holes 16. The structure adjusts the mounting angle of the mounting seat 2 6 by installing one screw 2 17 in different mounting holes 15 and another screw 2 17 in different mounting holes 16, thereby conveniently adjusting the angle of the lower mop wheel assembly 1 3.

[0048] The front cloth-mopping wheel seat 34 drives the front cloth-mopping wheel 36 to move downward, and together with the roller 14, presses the cloth. The front cloth-mopping wheel 36 rotates to drive the cloth to move forward, thereby realizing feeding.

[0049] like Figure 1As shown, in this embodiment, the mounting seat 3 7 includes a bracket 18 and a fixing plate 3 19, the fixing plate 3 19 is mounted on the frame 1, the lower mop wheel assembly 2 4 includes a roller 20, the roller 20 is arranged on the upper part of the bracket 18, the bottom of the bracket 18 is provided with an arc groove 21, the bottom of the bracket 18 is mounted on the fixing plate 3 19 by means of a screw 3 22, the screw 3 22 is penetrated through the arc groove 21 and can move along the arc groove 21.

[0050] When the screw three 22 is loosened, the bracket one 18 is rotated, and after the angle is adjusted, the screw three 22 is tightened to lock the bracket one 18 on the fixing plate three 19, so as to conveniently adjust the angle of the lower mop wheel assembly two 4.

[0051] The bracket 18 is provided with an arc groove 21 , and after the bracket 18 is rotated to a certain angle, the screw 3 22 slides and changes its position, and the bracket 18 can still be fixed on the fixing plate 3 19 .

[0052] The rear mop wheel seat 35 drives the rear mop wheel 37 to move downward, and together with the roller 20, presses the cloth. The rear mop wheel 37 rotates to drive the cloth forward, thereby realizing feeding.

[0053] like Figure 4 As shown, in this embodiment, a motor 23 is provided on the frame 1, an upper transmission shaft 24 is connected to the output shaft of the motor 23, a lower transmission shaft 25 is connected to the front mopping wheel 36, synchronous wheels 26 are respectively sleeved on the upper transmission shaft 24 and the lower transmission shaft 25, a synchronous belt 27 is connected between the synchronous wheels 26, sprockets 28 are respectively provided on the mounting frame 12 and the rear mopping wheel 37, and a chain 29 is connected between the two sprockets 28.

[0054] The motor 23, the upper transmission shaft 24, the lower transmission shaft 25, the synchronous belt 27 and the sprocket 28 constitute the upper mop wheel driving member. The motor 23 drives the upper transmission shaft 24 to rotate. The upper transmission shaft 24 drives the rear mop wheel 37 to rotate through the chain 29 and the sprocket 28. At the same time, the upper transmission shaft 24 drives the lower driven shaft to rotate through the synchronous belt 27 and the synchronous wheel 26. The lower driven shaft drives the front mop wheel 36 to rotate. This structure drives the front and rear mop wheels to rotate at the same time through one motor 23. Under the condition of simplified structure, large-arc sewing of the trouser waist is achieved.

[0055] like Figure 1 As shown, in this embodiment, a mounting seat four 30 is provided on the frame 1, a cutter assembly 31 is provided on the mounting seat four 30, an arc groove three 32 is provided on the mounting seat four 30, and the mounting seat four 30 is installed on the frame 1 by screws four 33, and the screws four 33 are passed through the arc groove three 32 and can move along the arc groove three 32.

[0056] When the screw four 33 is loosened, the mounting base four 30 is rotated, and after adjusting the angle, the screw four 33 is tightened to lock the mounting base four 30 on the frame 1, so that the angle of the cutter assembly 31 can be conveniently adjusted to match the angle of the mop wheel, thereby improving the convenience of operation and also improving the sewing efficiency.

[0057] An arc groove four is provided on the mounting seat four 30. After the mounting seat four 30 is rotated to a certain angle, the screw four 33 slides and changes its position, and the mounting seat four 30 can still be fixed on the frame 1.

[0058] As an embodiment, the cutter assembly 31 includes a movable knife, a fixed knife, and a cylinder that drives the movable knife to swing so that the movable knife engages with the fixed knife. This is a prior art and will not be described in detail.

[0059] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A trouser waist machine, comprising a frame (1), on which an upper cloth-pulling wheel assembly (2) and a lower cloth-pulling wheel assembly (3) are arranged, characterized in that: The frame (1) is also provided with a mounting seat 1 (5) and a mounting seat 2 (6) both of which are adjustable in angle, and the upper mopping wheel assembly (2) and the lower mopping wheel assembly 1 (3) are respectively mounted on the mounting seat 1 (5) and the mounting seat 2 (6).

2. A trouser waist machine according to claim 1, characterized in that: The frame (1) is also provided with a second lower mopping wheel assembly (4) and a third mounting seat (7) with an adjustable angle, and the second lower mopping wheel assembly (4) is mounted on the third mounting seat (7).

3. A trouser waist machine according to claim 1, characterized in that: The mounting seat (5) comprises a fixing plate (8) and a fixing plate (9), wherein the fixing plate (8) is mounted on the frame (1), and an arc groove (10) penetrating the fixing plate (8) is provided on the fixing plate (8), and the fixing plate (9) is mounted below the fixing plate (8) by means of a screw (11), and the screw (11) is penetrated through the arc groove (10) and can slide in the arc groove (10), and the upper mopping wheel assembly (2) is mounted on the fixing plate (9).

4. A trouser waist machine according to claim 3, characterized in that: The upper mop wheel assembly (2) comprises a mounting frame (12) which is mounted on the fixing plate (9). The mounting frame (12) is provided with a front mop wheel seat (34) and a rear mop wheel seat (35) which are both movable up and down. The front mop wheel seat (34) and the rear mop wheel seat (35) are respectively provided with a front mop wheel (36) and a rear mop wheel (37).

5. A trouser waist machine according to claim 1, 2 or 3, characterized in that: The frame (1) comprises a needle plate seat (13), the lower mopping wheel assembly (3) comprises a roller (14), the roller (14) is mounted on the mounting seat (6), one side of the needle plate seat (13) is provided with a group of mounting holes (15), the other side of the needle plate seat (13) is provided with a group of mounting holes (16), the two ends of the mounting seat (6) are respectively provided with screws (17), one of the screws (17) is threadedly connected to one of the mounting holes (15), and the other screw (17) is threadedly connected to one of the mounting holes (16).

6. A trouser waist machine according to claim 2, characterized in that: The mounting seat (7) comprises a bracket (18) and a fixing plate (19), wherein the fixing plate (19) is mounted on the frame (1), and the lower mopping wheel assembly (4) comprises a roller (20), wherein the roller (20) is arranged on the upper part of the bracket (18), and an arc groove (21) is arranged at the bottom of the bracket (18). The bottom of the bracket (18) is mounted on the fixing plate (19) by means of a screw (22), and the screw (22) is passed through the arc groove (21) and can move along the arc groove (21).

7. A trouser waist machine according to claim 4, characterized in that: The frame (1) is provided with a motor (23), the output shaft of the motor (23) is connected to an upper transmission shaft (24), the front mopping wheel (36) is connected to a lower transmission shaft (25), the upper transmission shaft (24) and the lower transmission shaft (25) are respectively sleeved with synchronous wheels (26), a synchronous belt (27) is connected between the synchronous wheels (26), sprocket wheels (28) are respectively provided on the mounting frame (12) and the rear mopping wheel (37), and a chain (29) is connected between the two sprocket wheels (28).

8. A trouser waist machine according to claim 1 or 2, characterized in that: The frame (1) is provided with a mounting seat four (30), the mounting seat four (30) is provided with a cutter assembly (31), the mounting seat four (30) is provided with an arc-shaped groove three (32), the mounting seat four (30) is mounted on the frame (1) by means of screws four (33), the screws four (33) are passed through the arc-shaped groove three (32) and can move along the arc-shaped groove three (32).

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