Automatic carpet seaming machine

Abstract

The application discloses an automatic carpet overlock machine, which comprises a conveying track used to drive a carpet to move in a first direction, a second direction, a third direction and a fourth direction in sequence, and four overlock devices arranged on the conveying track and used to overlock one edge of the carpet respectively; wherein the first direction and the second direction are perpendicular to each other, the third direction is parallel to the first direction and opposite in direction, and the fourth direction is parallel to the second direction and opposite in direction; and a plurality of turning tracks used to turn the moving direction of the carpet by 90 degrees are arranged on the conveying track. The automatic carpet overlock machine has the advantages that the overlock operation is automatically performed, the operation is switched to another edge automatically after one edge is completed, the efficiency is high, the machine can be suitable for carpets of various sizes, and the machine can correct the carpet, feed and discharge the carpet and sew marks.

Description

Technical Field

[0001] This invention relates to the textile field, and more particularly to an automatic carpet overlock sewing machine. Background Technology

[0002] Carpets are typically large, and edge binding for such large fabrics is usually quite cumbersome. The common practice is to use an overlock sewing machine, with the carpet rotated manually as the sewing process progresses. This manual method is inefficient and cannot meet the needs of automated production. How to automate the edge binding process for carpets of different sizes is a pressing technical problem that needs to be solved. Summary of the Invention

[0003] The purpose of this invention is to provide an automatic carpet overlock sewing machine that solves the above-mentioned technical problems.

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] An automatic carpet overlock machine includes a conveyor track for sequentially moving a carpet in a first direction, a second direction, a third direction, and a fourth direction. The conveyor track is equipped with four overlock devices for overlocking one edge of the carpet, respectively. The first and second directions are perpendicular to each other, the third direction is parallel to the first direction but opposite in direction, and the fourth direction is parallel to the second direction but opposite in direction. The conveyor track also includes several turning tracks for turning the carpet's travel direction by 90°.

[0006] Preferably, each of the turning tracks includes a support frame, on which a front active rotating shaft and a rear active rotating shaft are horizontally arranged. The front and rear active rotating shafts are driven to rotate by two motors respectively, and the front and rear active rotating shafts are perpendicular to each other. The support frame also has a front driven wheel set and a rear driven wheel set arranged on both sides of a diagonal, where the diagonal is the angle bisector of the front and rear active rotating shafts. Each front and rear driven wheel set includes several driven wheels with parallel axes. All driven wheels of the front driven wheel set are fitted with a transmission belt to the front active rotating shaft; all driven wheels of the rear driven wheel set are fitted with a transmission belt to the rear active rotating shaft for transmission.

[0007] Preferably, the rear driven wheel assembly is 1 to 10 cm lower than the front driven wheel assembly.

[0008] Preferably, the conveying track includes a first sub-track, a second sub-track, a third sub-track, a fourth sub-track, a fifth sub-track, and a sixth sub-track connected in sequence, wherein the second sub-track, the fourth sub-track, the fifth sub-track, and the sixth sub-track are all turning tracks; the first sub-track is used to move the carpet in a first direction, and the third sub-track is used to move the carpet in a second direction.

[0009] Preferably, one of the overlock sewing devices is provided between the first and second sub-tracks, between the third and fourth sub-tracks, between the fourth and fifth sub-tracks, and between the fifth and sixth sub-tracks.

[0010] Preferably, the overlock sewing device includes an overlock sewing machine frame, a pad plate disposed on the overlock sewing machine frame, a slide rail disposed horizontally above the pad plate, an overlock sewing machine head disposed on the slide rail, a pressure plate disposed on the overlock sewing machine frame, and a pressure plate cylinder for driving the pressure plate to move up and down.

[0011] Preferably, the overlock sewing machine frame is provided with two correction mechanisms. The correction mechanism includes a plurality of synchronous pulleys rotatably mounted on the overlock sewing machine frame and a set of synchronous belts mounted on all the synchronous pulleys. A servo motor drives one of the synchronous pulleys to rotate, and at least two of the synchronous pulleys are arranged back and forth along the direction of travel of the carpet on the overlock sewing machine frame.

[0012] Preferably, a feeding mechanism is provided on the outside of the first sub-track, and a receiving mechanism is provided on the outside of the sixth sub-track. Both the feeding mechanism and the receiving mechanism include a storage plate that can be vertically lifted and lowered.

[0013] Preferably, both the feeding mechanism and the receiving mechanism include four vertically arranged lifting slide rails, a pallet slider is arranged on the lifting slide rails, a vertically arranged lead screw is threadedly connected to the pallet slider, and the storage plate is arranged on the pallet slider.

[0014] Preferably, each of the first, second, third, fourth, fifth, and sixth sub-tracks has a plurality of label sewing machines for sewing labels on both sides.

[0015] The advantages of this invention are: it automatically performs overlock sewing operations, automatically switches to another edge after one edge is completed, which is highly efficient; it can also adapt to carpets of various sizes, and can handle piece handling, loading and unloading, and label sewing. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of a portion of the structure in the first embodiment of the present invention;

[0017] Figure 2 yes Figure 1 Top view of the structure;

[0018] Figure 3 yes Figure 1 A magnified schematic diagram of the local structure at point A;

[0019] Figure 4 yes Figure 1 A schematic diagram of the middle section structure;

[0020] Figure 5 This is a schematic diagram of part of the overlock sewing device;

[0021] Figure 6 This is a schematic diagram of an overlock sewing device. Detailed Implementation

[0022] The technical solution of the present invention will be further described in detail below with reference to specific embodiments.

[0023] In the description of this invention, it should be noted that the terms "inner", "outer", "upper", "lower", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0024] like Figures 1 to 6 As shown, an automatic carpet overlock machine of the present invention includes a conveyor track for sequentially moving the carpet in a first direction, a second direction, a third direction, a fourth direction, and a fifth direction. Four overlock devices 10 are provided on the conveyor track for overlocking one edge of the carpet respectively; wherein the first and second directions are perpendicular to each other, the third direction is parallel to and opposite to the first direction, the fourth direction is parallel to and opposite to the second direction, and the fifth direction is the same as the third direction; the conveyor track also includes several turning tracks for turning the carpet's travel direction by 90°.

[0025] Each turning track includes a support 12, on which a front drive rotating shaft 14 and a rear drive rotating shaft 16 are horizontally mounted. The front drive rotating shaft 14 and the rear drive rotating shaft 16 are driven to rotate by two motors (not shown), and the front drive rotating shaft 14 and the rear drive rotating shaft 16 are perpendicular to each other. The support 12 also has a front driven wheel set 18 and a rear driven wheel set 20 arranged on both sides of the diagonal, which is the angle bisector of the front drive rotating shaft 14 and the rear drive rotating shaft 16. The front driven wheel set 18 and the rear driven wheel set 20 each include several driven wheels with parallel axes. All the driven wheels of the front driven wheel set 18 are connected to the front drive rotating shaft 14 by a transmission belt 22. All the driven wheels of the rear driven wheel set 20 are connected to the rear drive rotating shaft 16 by a transmission belt 22 for transmission.

[0026] Furthermore, the rear driven wheel assembly 20 is 1-10 cm lower than the front driven wheel assembly 18.

[0027] The conveyor track includes a first sub-track 24, a second sub-track 26, a third sub-track 28, a fourth sub-track 30, a fifth sub-track 32, and a sixth sub-track 34 connected in sequence, wherein the second sub-track 26, the fourth sub-track 30, the fifth sub-track 32, and the sixth sub-track 34 are all turning tracks; the first sub-track 24 is used to move the carpet in the first direction, and the third sub-track 28 is used to move the carpet in the second direction.

[0028] A sewing device 10 is provided between the first sub-track 24 and the second sub-track 26, between the third sub-track 28 and the fourth sub-track 30, between the fourth sub-track 30 and the fifth sub-track 32, and between the fifth sub-track 32 and the sixth sub-track 34.

[0029] Each overlock sewing device 10 includes an overlock sewing machine frame 36, a pad 38 mounted on the overlock sewing machine frame 36, a slide rail 40 horizontally mounted above the pad 38, an overlock sewing machine head 42 mounted on the slide rail 40, a pressure plate 44 mounted on the overlock sewing machine frame 36, and a pressure plate cylinder (not shown) that drives the pressure plate to move up and down.

[0030] Two correction mechanisms 46 are provided on the overlock machine frame 36. Each correction mechanism 46 includes several synchronous pulleys 48 rotatably mounted on the overlock machine frame 36 and a set of synchronous belts 50 mounted on all the synchronous pulleys 48. A servo motor 51 drives one synchronous pulley 48 to rotate. At least two synchronous pulleys 48 are arranged back and forth along the direction of the carpet's travel on the overlock machine frame 36.

[0031] A feeding mechanism 52 is provided on the outside of the first sub-track 24, and a receiving mechanism 54 is provided on the outside of the sixth sub-track 34. Both the feeding mechanism 52 and the receiving mechanism 54 include a vertically lifting storage plate 56.

[0032] Both the feeding mechanism 52 and the receiving mechanism 54 include four vertically arranged lifting slide rails 58. A pallet slider 60 is arranged on the lifting slide rail 58. A vertically arranged lead screw 62 is threadedly connected to the pallet slider 60. The storage plate 56 is arranged on the pallet slider 60.

[0033] Several label sewing machines 52 for sewing labels are set on both sides of the first sub-track 24, the second sub-track 26, the third sub-track 28, the fourth sub-track 30, the fifth sub-track 32 and the sixth sub-track 34.

[0034] The process of using this invention is as follows:

[0035] S1. The feeding mechanism 52 lifts the storage plate 56 upward via a lead screw, and the carpet is automatically moved or pushed onto the first sub-track 24 by a robotic arm or cylinder. The carpet is then conveyed forward along the first direction by the first sub-track 24 to the first overlock device 10. The pressure plate presses down to hold the first edge, and the overlock machine head 42 performs the overlock edge sewing operation on the held first edge. Before the pressure plate presses down to perform the edge sewing operation, the carpet can be photographed by a CCD camera, and then the image can be analyzed to determine whether it is deviated. If deviation occurs, the correction mechanism 46 drives the carpet to deviate by using the synchronous belts 50 (which press on the carpet) on both sides of the carpet with different speeds or one turning forward and the other turning backward, thereby achieving the purpose of correction.

[0036] S2. The pressure plate is lifted, and the carpet continues to move forward to the second sub-track 26, where half of it falls onto the lower rear driven roller set 20 and the rear drive rotating shaft 16. Under the combined action of the transmission belt 22 on the front driven roller set 18 and the rear driven roller set 20, it moves in the second direction; to the third sub-track 28, where the second overlock sewing device 10 sews the second edge in the manner described above.

[0037] S3. The pressure plate is lifted, and the carpet continues to move forward to the fourth sub-track 30, where the third overlock device 10 sews the third edge in the manner described above.

[0038] S4. The pressure plate is lifted, and the carpet continues to move forward to the fifth sub-track 32, where the fourth overlock device 10 sews the fourth edge in the manner described above.

[0039] S5. The pressure plate is lifted, and the carpet continues to move forward to the sixth sub-track 34. After changing direction at the sixth sub-track 34, it moves along the fifth direction to the receiving mechanism 54, where it is collected and stacked by the storage plate 56. The storage plate 56 lowers by one thickness each time it receives a carpet in order to receive the next carpet.

[0040] During the edge sewing process, multiple labels can be sewn onto each edge of the carpet using a label sewing machine 52. Since edge sewing machines are quite common and their structure is not the innovation of this invention, they are not shown in detail.

[0041] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. An automatic carpet seaming machine comprising a conveyor track, characterised in that: The conveying track is used to sequentially drive the carpet to move in a first direction, a second direction, a third direction and a fourth direction, and four overlock devices are arranged on the conveying track to overlock one edge of the carpet respectively; wherein the first direction and the second direction are perpendicular to each other, the third direction is parallel to the first direction and opposite in direction, and the fourth direction is parallel to the second direction and opposite in direction; a plurality of turning tracks are arranged on the conveying track to turn the direction of the carpet by 90°; Each of the turning tracks comprises a support, a front driving rotating shaft and a rear driving rotating shaft are horizontally arranged on the support, the front driving rotating shaft and the rear driving rotating shaft are driven to rotate by two motors respectively, and the front driving rotating shaft and the rear driving rotating shaft are perpendicular to each other; a front driven wheel set and a rear driven wheel set are arranged on the support along a diagonal line direction on both sides of the diagonal line, the diagonal line is an angle bisector of the front driving rotating shaft and the rear driving rotating shaft; the front driven wheel set and the rear driven wheel set each comprise a plurality of driven wheels with parallel axes, all the driven wheels of the front driven wheel set are sleeved with a transmission belt on the front driving rotating shaft; all the driven wheels of the rear driven wheel set are sleeved with a transmission belt on the rear driving rotating shaft to transmit power; The conveying track comprises a first sub-track, a second sub-track, a third sub-track, a fourth sub-track, a fifth sub-track and a sixth sub-track connected in sequence, wherein the second sub-track, the fourth sub-track, the fifth sub-track and the sixth sub-track are the turning tracks; the first sub-track is used to drive the carpet to move in the first direction, and the third sub-track is used to drive the carpet to move in the second direction; One overlock device is arranged between the first sub-track and the second sub-track, between the third sub-track and the fourth sub-track, between the fourth sub-track and the fifth sub-track, and between the fifth sub-track and the sixth sub-track; A plurality of label sewing machines are arranged on both sides of the first sub-track, the second sub-track, the third sub-track, the fourth sub-track, the fifth sub-track and the sixth sub-track.

2. The automatic carpet seaming machine according to claim 1, wherein The rear driven wheel set is 1-10 cm lower than the front driven wheel set.

3. The automatic carpet seaming machine of claim 1 wherein, The overlock device comprises an overlock frame, a backing plate arranged on the overlock frame, a slide rail arranged horizontally above the backing plate, an overlock head arranged on the slide rail, a pressing plate arranged on the overlock frame, and a pressing plate cylinder driving the pressing plate to move up and down.

4. The automatic carpet seaming machine of claim 3 wherein, Two deviation correction mechanisms are arranged on the overlock frame, the deviation correction mechanism comprises a plurality of synchronous wheels rotatably arranged on the overlock frame and a synchronous belt arranged on all the synchronous wheels, a servo motor drives one of the synchronous wheels to rotate, and at least two of the synchronous wheels are arranged in front of and behind the direction of the carpet on the overlock frame.

5. The automatic carpet seaming machine of claim 1 wherein, An upper feeding mechanism is arranged outside the first sub-track, and a material collecting mechanism is arranged outside the sixth sub-track, and the upper feeding mechanism and the material collecting mechanism each comprise a vertically liftable storage plate.

6. An automatic carpet seaming machine according to claim 5, wherein The feeding mechanism and the collecting mechanism each comprise four vertically arranged lifting slides, a supporting plate sliding block is arranged on the lifting slide, a vertically arranged screw rod is in threaded connection with the supporting plate sliding block, and the storage plate is arranged on the supporting plate sliding block.

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