A fabric feeding and deviation correcting mechanism

Abstract

The present invention discloses a fabric feeding and deviation correcting mechanism, which includes a material clamping component for clamping the sewing edge of the fabric. The material clamping component includes an upper clamping plate and a lower clamping plate that are rotatably connected, and a driving rotating shaft is provided at the rotation center of the upper clamping plate and the lower clamping plate. A first rotating shaft is provided at the front part of the upper clamping plate, and a second rotating shaft is provided at the rear part. At least one rotatable upper material rolling belt is wound around the first rotating shaft, the second rotating shaft and the driving rotating shaft, and the upper material rolling belt protrudes from the upper material clamping surface of the upper clamping plate. A third rotating shaft is provided at the front part of the lower clamping plate, and a fourth rotating shaft is provided at the rear part. At least one lower material rolling belt is wound around the third rotating shaft, the fourth rotating shaft and the driving rotating shaft, and the lower material rolling belt protrudes from the upper material clamping surface of the lower clamping plate. The fabric feeding and deviation correcting mechanism is provided with a motor that drives the upper material rolling belt and the lower material rolling belt to rotate synchronously through the driving rotating shaft, which can realize real-time deviation correction of the fabric edge, keep the fabric edge in a straight state before being conveyed to the sewing needle, and improve the sewing quality.

Description

Technical Field

[0001] The present invention relates to the field of industrial sewing machines, and more specifically to a fabric feeding deviation correction mechanism. Background Art

[0002] When sewing the edge of a fabric, due to the long and soft nature of the fabric, it is impossible to ensure that the edge passes straight through the sewing needle. Especially when sewing some annular fabrics, the annular fabric is sleeved between two sleeves, and it is impossible to keep the fabric edge transported straight in the middle of the sleeves, which will reduce the sewing quality. Summary of the Invention

[0003] In view of the above-mentioned current situation of the prior art, the present invention provides a fabric feeding deviation correction mechanism, which can ensure that the fabric edge passes straight through the sewing needle during fabric transportation, thereby improving the sewing quality.

[0004] The technical solution adopted by the present invention to solve the above technical problems is: a fabric feeding deviation correction mechanism, including a material clamping assembly for clamping the sewing edge of the fabric. The material clamping assembly includes an upper clamping plate and a lower clamping plate that are rotatably connected, and a driving rotating shaft is provided at the rotation center of the upper clamping plate and the lower clamping plate. A first rotating shaft is provided at the front part of the upper clamping plate, and a second rotating shaft is provided at the rear part. At least one rotatable upper rolling belt is wound around the first rotating shaft, the second rotating shaft, and the driving rotating shaft, and the upper rolling belt protrudes from the upper material clamping surface of the upper clamping plate. A third rotating shaft is provided at the front part of the lower clamping plate, and a fourth rotating shaft is provided at the rear part. At least one lower rolling belt is wound around the third rotating shaft, the fourth rotating shaft, and the driving rotating shaft, and the lower rolling belt protrudes from the upper material clamping surface of the lower clamping plate. There is a motor that drives the upper rolling belt and the lower rolling belt to rotate synchronously through the driving rotating shaft. One of the upper rolling belt and the lower rolling belt is wound in a crossed manner.

[0005] To optimize the above technical solution, the present invention further includes the following improved technical solutions.

[0006] The above-mentioned motor is connected with a driving synchronous pulley, the driving rotating shaft is connected with a follower synchronous pulley, and the driving synchronous pulley and the follower synchronous pulley are connected by a synchronous belt.

[0007] The above-mentioned fabric feeding deviation correction mechanism is provided with a pressing cylinder for driving the upper clamping plate and the lower clamping plate to open and close.

[0008] The above-mentioned fabric feeding deviation correction mechanism is provided with a spring for applying an elastic force to the upper clamping plate to maintain the pressing state.

[0009] The above-mentioned lower clamping plate has a convex ear portion, and the driving rotating shaft is rotatably arranged on the convex ear portion through a first bearing. The upper clamping plate is rotatably connected to the driving rotating shaft through a second bearing.

[0010] Above the above-mentioned upper clamping plate, there is a photoelectric sensor for detecting the position of the fabric edge, and the photoelectric sensor sends a signal to a control module for controlling the working state of the motor.

[0011] The above-mentioned first rotating shaft and second rotating shaft are respectively sleeved with upper belt pulleys, and the upper belt pulleys are provided with grooves along the circumferences thereof for clamping the upper rolling material belt. The third rotating shaft and the fourth rotating shaft are respectively sleeved with lower belt pulleys, and the lower belt pulleys are provided with grooves along the circumferences thereof for clamping the lower rolling material belt.

[0012] The cross-sections of the above-mentioned upper rolling material belt and lower rolling material belt are circular.

[0013] Compared with the prior art, the cloth feeding and deviation correcting mechanism of the present invention can realize real-time deviation correction of the cloth edge, keep the cloth edge in a straight state before being conveyed to the sewing needle, and improve the sewing quality. The cloth feeding and deviation correcting mechanism clamps the cloth edge by an upper clamping plate and a lower clamping plate which can be opened and closed, and corrects the position of the cloth edge by the synchronous rotation of the upper rolling material belt and the lower rolling material belt during cloth feeding. At the same time, it has the advantages of small structure and immediate deviation correction. Description of the Drawings

[0014] Figure 1 is a schematic three-dimensional structure diagram of an embodiment of the present invention.

[0015] Figure 2 is a schematic three-dimensional structure diagram of the embodiment of the present invention in a working state.

[0016] Figure 3 is Figure 1 a partial structure diagram of

[0017] Figure 4 is Figure 1 a schematic three-dimensional structure diagram from another angle. Detailed Embodiment

[0018] The embodiments of the present invention will be further described in detail below with reference to the drawings.

[0019] Figures 1 to 4 The structure diagram of the present invention is shown.

[0020] The reference numerals therein are: upper clamping plate 1, first rotating shaft 11, second rotating shaft 12, upper rolling material belt 13, upper belt pulley 14, lower clamping plate 2, third rotating shaft 21, fourth rotating shaft 22, lower rolling material belt 23, convex ear part 24, lower belt pulley 25, driving rotating shaft 3, follower synchronous pulley 31, motor 4, driving synchronous pulley 41, synchronous belt 42, pressing air cylinder 5, spring 51, photoelectric sensor 6.

[0021] The cloth feeding and deviation correcting mechanism of the present invention includes a material clamping assembly for clamping the sewing edge of the cloth. The material clamping assembly includes an upper clamping plate 1, a lower clamping plate 2 and a driving rotating shaft 3 for rotational connection.

[0022] The front part of the upper clamping plate 1 is provided with a first rotating shaft 11, and the rear part is provided with a second rotating shaft 12. At least one rotatable upper material conveying belt 13 is wound around the first rotating shaft 11, the second rotating shaft 12 and the driving rotating shaft 3, and the upper material conveying belt 13 protrudes from the upper material clamping surface of the upper clamping plate 1. The front part of the lower clamping plate 2 is provided with a third rotating shaft 21, and the rear part is provided with a fourth rotating shaft 22. At least one lower material conveying belt 23 is wound around the third rotating shaft 21, the fourth rotating shaft 22 and the driving rotating shaft 3, and the lower material conveying belt 23 protrudes from the upper material clamping surface of the lower clamping plate 2. There is a motor 4 that drives the upper material conveying belt 13 and the lower material conveying belt 23 to rotate synchronously through the driving rotating shaft 3.

[0023] In a preferred embodiment, the lower clamping plate 2 has a convex ear part 24, and the driving rotating shaft 3 is rotatably arranged on the convex ear part 24 through a first bearing. The upper clamping plate 1 is rotatably connected to the driving rotating shaft 3 through a second bearing. The upper clamping plate 1 can be opened and closed relative to the lower clamping plate 2, and at the same time, the driving rotating shaft 3 can rotate independently to drive the upper material conveying belt 13 and the lower material conveying belt 23 to rotate.

[0024] In other embodiments, the upper clamping plate 1 and the lower clamping plate 2 can also be rotatably connected to each other through a bearing, and the axis center of the bearing is concentrically installed with the axis center of the driving rotating shaft 3. The driving rotating shaft 3 is then connected to the upper clamping plate 1 or the lower clamping plate 2 through another bearing.

[0025] The cloth feeding deviation rectifying mechanism is provided with a pressing material air cylinder 5 that drives the upper clamping plate 1 and the lower clamping plate 2 to open and close. The pressing material air cylinder 5 can be a two-way air cylinder to drive the upper clamping plate 1 and the lower clamping plate 2 to open and close. The pressing material air cylinder 5 can also be a one-way air cylinder to drive the upper clamping plate 1 to lift, and there is a spring 51 that applies an elastic force to the upper clamping plate 1 to maintain the pressing material state, and the pressing of the upper clamping plate 1 is controlled by the elastic force.

[0026] The motor 4 is connected with a driving synchronous pulley 41, the driving rotating shaft 3 is connected with a follower synchronous pulley 31, and the driving synchronous pulley 41 and the follower synchronous pulley 31 are connected through a synchronous belt 42.

[0027] Above the upper clamping plate 1, there is an optoelectronic sensor 6 for detecting the edge position of the cloth, and the optoelectronic sensor 6 sends a signal to the control module that controls the working state of the motor 4. As Figure 3 shown, the cloth is conveyed in the A direction under the clamping of the upper clamping plate 1 and the lower clamping plate 2. The optoelectronic sensor 6 immediately detects the position where the cloth edge passes through the cloth feeding deviation rectifying mechanism. When the cloth edge deviates outward in the B direction, the motor 4 drives the upper material conveying belt 13 and the lower material conveying belt 23 to rotate to correct the cloth edge inward in the B direction; when the cloth edge deviates inward in the B direction, the motor 4 drives the upper material conveying belt 13 and the lower material conveying belt 23 to rotate in the reverse direction to correct the cloth edge outward in the B direction.

[0028] In order to synchronously control the correction of the fabric edge to one side for the upper rolling tape 13 and the lower rolling tape 23, one of the upper rolling tape 13 and the lower rolling tape 23 is wound in a crossed manner. In this embodiment, the number of the upper rolling tapes 13 is one, and the number of the lower rolling tapes 23 is two. To avoid interference, the upper rolling tape 13 and the lower rolling tape 23 need to be spaced apart. The number of the upper rolling tapes 13 can be 1 to 5, or more according to the width of the upper clamping plate 1. Similarly, the number of the lower rolling tapes 23 can be multiple according to the width of the lower clamping plate 2.

[0029] The first rotating shaft 11 and the second rotating shaft 12 are respectively sleeved with upper belt pulleys 14, and the upper belt pulleys 14 are provided with grooves for clamping the upper rolling tape 13 along the circumference of the wheels. The third rotating shaft 21 and the fourth rotating shaft 22 are respectively sleeved with lower belt pulleys 25, and the lower belt pulleys 25 are provided with grooves for clamping the lower rolling tape 23 along the circumference.

[0030] The cross-sections of the upper rolling tape 13 and the lower rolling tape 23 are circular. When the upper rolling tape 13 and the lower rolling tape 23 rotate around the driving rotating shaft 3 for the rectifying action, they can also roll along with the fabric conveying. The grooves on the upper belt pulley 14 and the lower belt pulley 25 can play a limiting role during the rolling.

[0031] The best embodiment of the present invention has been illustrated, and various changes or modifications made by those of ordinary skill in the art will not depart from the scope of the present invention.

Claims

1. A fabric feeding and deviation correcting mechanism, comprising a material clamping component for clamping the sewing edge of the fabric, characterized in that: The described material clamping assembly includes an upper clamping plate (1) and a lower clamping plate (2) that are rotatably connected, and a driving rotating shaft (3) is provided at the rotation center of the upper clamping plate (1) and the lower clamping plate (2); a first rotating shaft (11) is provided at the front part of the upper clamping plate (1), and a second rotating shaft (12) is provided at the rear part; at least one rotatable upper material rolling belt (13) is wound around the first rotating shaft (11), the second rotating shaft (12), and the driving rotating shaft (3), and the upper material rolling belt (13) protrudes from the upper material clamping surface of the upper clamping plate (1); a third rotating shaft (21) is provided at the front part of the lower clamping plate (2), and a fourth rotating shaft (22) is provided at the rear part; at least one lower material rolling belt (23) is wound around the third rotating shaft (21), the fourth rotating shaft (22), and the driving rotating shaft (3), and the lower material rolling belt (23) protrudes from the upper material clamping surface of the lower clamping plate (2); a motor (4) is provided to drive the upper material rolling belt (13) and the lower material rolling belt (23) to rotate synchronously through the driving rotating shaft (3); one of the upper material rolling belt (13) and the lower material rolling belt (23) is wound in a cross manner.

2. The cloth feeding deviation rectifying mechanism according to claim 1, characterized in that: The described motor (4) is connected with a driving synchronous pulley (41), the driving rotating shaft (3) is connected with a follower synchronous pulley (31), and the driving synchronous pulley (41) and the follower synchronous pulley (31) are connected through a synchronous belt (42).

3. The cloth feeding and deviation correcting mechanism according to claim 1, characterized in that: A pressing air cylinder (5) is provided to drive the upper clamping plate (1) and the lower clamping plate (2) to open and close.

4. The cloth feeding deviation rectifying mechanism according to claim 3, wherein: A spring (51) is provided to apply an elastic force to the upper clamping plate (1) to maintain the pressing state.

5. The cloth feeding deviation rectifying mechanism according to claim 1, characterized in that: The described lower clamping plate (2) has a convex ear part (24), and the driving rotating shaft (3) is rotatably arranged on the convex ear part (24) through a first bearing; the upper clamping plate (1) is rotatably connected with the driving rotating shaft (3) through a second bearing.

6. The feeding deviation rectifying mechanism according to claim 1, characterized in that: An optoelectronic sensor (6) for detecting the edge position of the fabric is provided above the upper clamping plate (1), and the optoelectronic sensor (6) sends a signal to a control module that controls the working state of the motor (4).

7. The cloth feeding deviation rectifying mechanism according to claim 1, characterized in that: The first rotating shaft (11) and the second rotating shaft (12) are respectively sleeved with upper belt pulleys (14), and grooves for clamping the upper material rolling belt (13) are formed on the circumferences of the upper belt pulleys (14); the third rotating shaft (21) and the fourth rotating shaft (22) are respectively sleeved with lower belt pulleys (25), and grooves for clamping the lower material rolling belt (23) are formed on the circumferences of the lower belt pulleys (25).

8. The cloth feeding and deviation correcting mechanism according to claim 1, characterized in that: The cross-sections of the upper material rolling belt (13) and the lower material rolling belt (23) are circular.

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