Crease-resistant cloth guide mechanism

Abstract

The utility model provides a crease-resistant cloth guide mechanism, and belongs to the technical field of textile equipment. Comprising a mounting base, a round roller rotationally connected to the mounting base, a swing arm rotationally connected to the round roller and a cam rotationally connected to the mounting base, a first belt wheel is fixedly arranged on a rotating shaft where the cam is located, a second belt wheel is fixedly arranged on a rotating shaft where the round roller is located, the first belt wheel and the second belt wheel are dragged through a belt, and the middle of the swing arm abuts against the cam. The cam can drive the swing arm to swing up and down, the swing arm is rotationally connected with a two-way threaded roller, the two ends of the two-way threaded roller are provided with threaded protruding ribs opposite in spiral direction respectively, and the two-way threaded roller can make contact with the lower surface of cloth when the swing arm swings up. The utility model has the advantages of simple structure and the like.

Description

Technical Field

[0001] The utility model belongs to the technical field of textile equipment and relates to a wrinkle-proof cloth guiding mechanism. Background Art

[0002] During processes such as cloth inspection, open-width cutting, etc., the fabric needs to be laid flat to avoid visual differences in cloth inspection and interference with cutting accuracy caused by local wrinkles.

[0003] At present, there are two ways to stretch the cloth, namely the air-blowing type and the double-direction screw roller. The air-blowing type can effectively prevent wrinkles, but cannot maintain the flatness of the cloth. The double-direction screw roller is provided with screw ribs structures on both sides of a cloth guiding roller, and external pulling forces are respectively generated on both sides of the cloth during the cloth traction process to drive the cloth to stretch. In this way, since the cloth is in constant contact with the roller, it is easy to cause inconsistent pulling forces on the cloth by the screw ribs at both ends, resulting in the cloth running off track. As the operation continues, this deviation will accumulate, and thus a deviation rectifying structure needs to be additionally provided. Therefore, neither of these two methods can simply achieve flat traction and cloth conveying. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a wrinkle-proof cloth guiding mechanism for the above problems existing in the current technology. The technical problem to be solved by the utility model is how to flatten and prevent wrinkles during the cloth traction process.

[0005] The purpose of the utility model can be achieved by the following technical solutions: A wrinkle-proof cloth guiding mechanism, characterized in that it includes a mounting seat, a round roller rotatably connected to the mounting seat, a swing arm rotatably connected to the round roller, and a cam rotatably connected to the mounting seat. A pulley one is fixedly arranged on the rotating shaft of the cam, a pulley two is fixedly arranged on the rotating shaft of the round roller, and the pulley one and the pulley two are tractioned by a belt. The middle part of the swing arm abuts against the cam, and the cam can drive the swing arm to swing up and down. A double-direction screw roller is rotatably connected to the swing arm, and screw ribs with opposite spiral directions are respectively arranged at both ends of the double-direction screw roller. The double-direction screw roller can contact the lower surface of the cloth when the swing arm swings upward.

[0006] This scheme adopts an intermittent contact method, enabling the double-direction screw roller to intermittently contact the lower surface of the cloth. When contacting, the double-direction screw roller can externally pull both sides of the cloth to achieve cloth stretching and wrinkle prevention. When the double-direction screw roller disengages from the cloth, the cloth is normally tractioned. This method avoids the continuous pulling force applied to the cloth due to constant contact, which may cause the cloth to run off track, and can also effectively smooth and stretch the possible wrinkles of the cloth. Brief Description of the Drawings

[0007] Figure 1 It is a schematic diagram of this wrinkle-proof cloth guiding structure.

[0008] Figure 2 It is a structural schematic diagram of a bidirectional threaded roller.

[0009] In the figure, 1. mounting seat; 2. round roller; 3. cam; 4. belt; 5. swing arm; 6. bidirectional threaded roller; 7. threaded rib. DETAILED DESCRIPTION

[0010] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0011] like Figure 1 and Figure 2 The wrinkle-proof cloth guiding mechanism shown comprises a mounting base 1, a round roller 2 rotatably connected to the mounting base 1, a swing arm 5 rotatably connected to the round roller 2 and a cam 3 rotatably connected to the mounting base 1, a pulley 1 is fixedly provided on the rotating shaft where the cam 3 is located, a pulley 2 is fixedly provided on the rotating shaft where the round roller 2 is located, and the pulleys 1 and 2 are pulled by a belt 4, the middle part of the swing arm 5 abuts against the cam 3, and the cam 3 can drive the swing arm 5 to swing up and down, and a bidirectional threaded roller 6 is rotatably connected to the swing arm 5, and both ends of the bidirectional threaded roller 6 respectively have threaded ribs 7 with opposite spiral directions, and the bidirectional threaded roller 6 can contact the lower surface of the cloth when the swing arm 5 swings up.

[0012] During the cloth traction process, the round roller 2 can be driven to rotate, the round roller 2 can drive the cam 3 to rotate, and the cam 3 drives the swing arm 5 to swing up and down. When the swing arm 5 moves upward, the bidirectional threaded roller 6 can gradually contact the lower surface of the cloth, thereby driving the cloth to unfold. When the bidirectional threaded roller 6 is separated from the cloth, the normal cloth traction is restored.

[0013] The present solution adopts an intermittent contact method, so that the bidirectional threaded roller 6 can intermittently contact the lower surface of the cloth. When in contact, the bidirectional threaded roller 6 can pull the two sides of the cloth outward to achieve cloth unfolding and wrinkle prevention. When the bidirectional threaded roller 6 is separated from the cloth, the cloth is pulled normally. This method avoids the continuous pulling force exerted on the cloth by constant contact and causes the cloth to deviate, and can also effectively smooth out and open the wrinkles that may form on the cloth.

[0014] 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 wrinkle-proof cloth guiding mechanism, characterized in that: The invention comprises a mounting seat (1), a round roller (2) rotatably connected to the mounting seat (1), a swing arm (5) rotatably connected to the round roller (2), and a cam (3) rotatably connected to the mounting seat (1); a first pulley is fixedly arranged on the rotating shaft where the cam (3) is located; a second pulley is fixedly arranged on the rotating shaft where the round roller (2) is located; the first pulley and the second pulley are pulled by a belt (4); the middle part of the swing arm (5) abuts against the cam (3); the cam (3) can drive the swing arm (5) to swing up and down; a bidirectional threaded roller (6) is rotatably connected to the swing arm (5); both ends of the bidirectional threaded roller (6) respectively have threaded ribs (7) with opposite spiral directions; and the bidirectional threaded roller (6) can contact the lower surface of the cloth when the swing arm (5) swings up.

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