Fabric feeding and tensioning mechanism

Abstract

The utility model relates to the technical field of fabric, and discloses a fabric feeding tensioning mechanism which comprises a support, a lifting tensioning rod is arranged in the middle of the support, and a rotatable roller shaft is arranged above the rear end of the support. The fabric feeding mechanism is arranged at the front end above the support and used for driving the fabric to be conveyed backwards. Vertical rails are arranged on the two sides of the support, sliding seats are arranged at the two ends of the tensioning rod, the two sliding seats are connected with the two rails in a sliding mode respectively, and the sliding seats ascend and descend vertically through air cylinders. By arranging the fabric feeding mechanism and the photoelectric sensor, conveying and deviation correction monitoring are conducted on the fabric before tensioning is conducted, and the stability of fabric conveying is improved; the tensioning rod is driven by the two groups of air cylinders to ascend and descend on the track, so that the movement stability of the tensioning rod when the fabric is tensioned is improved; meanwhile, the device is compact in structure, small in occupied area and good in practical effect.

Description

Technical Field

[0001] The utility model relates to the technical field of fabrics, in particular to a fabric feeding and tensioning mechanism. Background Art

[0002] During the fabric production process, the fabric needs to be transported to the next station for processing. However, the processing time between different stations is different, and there will be a time difference. Therefore, it is necessary to add buffer equipment between different stations, so the production line of fabric products will be very long. The fabric also needs to be tensioned between the buffer equipment and the processing unit. The existing tensioning device is generally equipped with a liftable tensioning rod. The fabric is wrapped around from the bottom of the tensioning rod. The tensioning degree of the fabric during the conveying process is maintained by lifting and lowering the tensioning rod. The existing tensioning structure has certain deficiencies in the stability of some fabric conveying. A high-stability tensioning mechanism is required to adapt to different fabric production. Utility Model Content

[0003] Based on this, it is necessary to provide a high-stability fabric feeding and tensioning mechanism to address the problems raised in the above background technology.

[0004] To achieve the above purpose, the utility model provides the following technical solutions: a fabric feeding tensioning mechanism, comprising a bracket, a liftable tensioning rod is provided in the middle of the bracket, and a rotatable roller is provided above the rear end of the bracket.

[0005] The upper fabric mechanism is arranged at the front end above the bracket and is used for driving the fabric to be transported backwards.

[0006] Vertically arranged tracks are arranged on both sides of the bracket, and sliding seats are arranged at both ends of the tensioning rod. The two sliding seats are respectively slidably connected to the two tracks, and the sliding seats are lifted up and down by a cylinder.

[0007] In a preferred example, the utility model can be further configured as follows: two photoelectric sensors are provided at the front end of the upper fabric mechanism to monitor whether the fabric is offset when entering the upper fabric mechanism.

[0008] By adopting the above technical solution, it is used to monitor whether the fabric is deviated to the left and right. When the deviation is monitored, the fabric is corrected by the correction device of the previous feeding process.

[0009] In a preferred example, the utility model can be further configured as follows: the upper fabric mechanism includes a base, and the base is rotatably mounted with auxiliary rollers and driving rollers distributed up and down, and at least one set of the auxiliary rollers and driving rollers is driven to rotate by a motor.

[0010] By adopting the above technical solution, the fabric can be conveyed and smoothed.

[0011] In a preferred example, the utility model can be further configured as follows: an auxiliary rod is provided above the auxiliary roller, and the height of the auxiliary rod can be adjusted.

[0012] By adopting the above technical solution, the fabric passes over the auxiliary rod and then passes between the auxiliary roller and the driving roller, which can improve the stability of fabric transportation.

[0013] In a preferred example, the utility model can be further configured as follows: lifting blocks are fixedly provided at both ends of the auxiliary rod, and the lifting blocks are movably installed on the base up and down, and the height of the lifting blocks is adjusted by rotating the adjusting bolts.

[0014] By adopting the above technical solution, adjustable settings are achieved.

[0015] In a preferred example, the utility model can be further configured as follows: the cylinders are provided in two groups and fixed on both sides of the bracket, and the output ends of the cylinders are connected to the sliding seat.

[0016] By adopting the above technical solution, the tensioning rod can be stably driven to rise and fall.

[0017] In a preferred example, the utility model can be further configured as follows: both ends of the tensioning rod are rotatably connected to the sliding seat via a rotating shaft.

[0018] By adopting the above technical solution, the friction between the fabric and the tensioning rod is reduced, and the fabric passing effect is improved.

[0019] In a preferred example, the utility model can be further configured as follows: position sensors are provided at the upper and lower ends of the track for limiting the position of the sliding seat.

[0020] By adopting the above technical solution, the tensioning rod is prevented from falling off the track.

[0021] In summary, the present invention includes at least one of the following beneficial technical effects:

[0022] By setting up the upper fabric mechanism and the photoelectric sensor, the fabric is conveyed and corrected before tensioning, thereby improving the stability of fabric conveying; the tensioning rod is driven to rise and fall on the track by two sets of cylinders, thereby improving the stability of the tensioning rod's movement when tensioning the fabric; at the same time, the utility model has a compact structure, occupies a small area, and has a good practical effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0024] Figure 1 It is a schematic diagram of the structure of the utility model;

[0025] Figure 2 It is a structural schematic diagram of the upper fabric mechanism in the utility model.

[0026] In the attached figure:

[0027] 1. Bracket; 11. Track; 12. Position sensor; 2. Fabric loading mechanism; 21. Motor; 22. Auxiliary rod; 23. Auxiliary roller; 24. Driving roller; 25. Base; 26. Lifting block; 27. Adjusting bolt; 3. Tensioning rod; 31. Cylinder; 32. Sliding seat; 4. Roller shaft; 5. Photoelectric sensor. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] exist Figure 1-2 In the illustrated embodiment, the utility model provides a technical solution: a fabric feeding tensioning mechanism, comprising a bracket 1, a liftable tensioning rod 3 is provided in the middle of the bracket 1, and a rotatable roller 4 is provided above the rear end of the bracket 1.

[0030] like Figure 2 As shown, the upper fabric mechanism 2 is arranged at the front end above the bracket 1, and is used to drive the fabric to be transported backward. The structure includes: a base 25, on which auxiliary rollers 23 and driving rollers 24 are rotatably installed and distributed up and down. The driving rollers 24 are driven to rotate by the motor 21, and the motor 21 is installed on one side of the base 25. An auxiliary rod 22 is arranged above the auxiliary roller 23. Lifting blocks 26 are fixedly arranged at both ends of the auxiliary rod 22. The lifting blocks 26 are movably installed on the base 25 (a slide groove is provided on the base 25). The height of the lifting blocks 26 is adjusted by rotating the adjusting bolts 27. The adjusting bolts 27 rotate and pass through the lifting blocks 26. The adjusting bolts 27 are rotatably installed with the base 25, and the lifting is adjusted by adjusting the relative positions of the lifting blocks 26 and the adjusting bolts 27. Two photoelectric sensors 5 are arranged at the front end of the auxiliary rod 22, which are used to monitor whether the fabric is offset when entering the upper fabric mechanism 2.

[0031] The two sides of the bracket 1 are provided with vertically arranged tracks 11, and the two ends of the tension rod 3 are rotatably mounted with sliding seats 32, and the two sliding seats 32 are respectively slidably connected with the two tracks 11. The two sliding seats 32 are fixed to the cylinders 31 on both sides of the bracket 1 by two sets of cylinders, and the output ends of the cylinders 31 are connected to the sliding seats 32. Furthermore, position sensors 12 are provided at the upper and lower ends of the track 11 to limit the position of the sliding seats 32.

[0032] The specific working principle of the utility model will be described in detail below: the fabric passes between the two photoelectric sensors 5 of the upper fabric mechanism 2, and the photoelectric sensors 5 are used to monitor the positions of both sides of the fabric. When the photoelectric sensors 5 sense the fabric, the terminal controls the deviation correction mechanism at the front end to correct the fabric. The fabric passes over the auxiliary rod 22, passes between the auxiliary rod 22 and the auxiliary roller 23, and passes between the auxiliary roller 23 and the driving roller 24. The fabric passes under the tensioning rod 3 and then passes over the roller shaft 4. The motor 21 drives the driving roller 24 to rotate, and the fabric is driven to be transmitted.

[0033] Tensioning principle: The cylinder 31 is controlled to drive the sliding seat 32 to rise and fall on the track 11, thereby realizing the lifting and lowering of the tensioning rod 3. The position sensors 12 at the upper and lower ends of the track 11 prevent the sliding seat 32 from leaving the track 11, thereby realizing a stable tensioning effect.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fabric feeding tensioning mechanism, comprising a bracket (1), a tensioning rod (3) which can be raised and lowered is provided in the middle of the bracket (1), and a rotatable roller (4) is provided above the rear end of the bracket (1), characterized in that: An upper fabric mechanism (2), the upper fabric mechanism (2) being arranged at the front end above the support (1) and used for driving the fabric to be transported backwards; Vertically arranged rails (11) are provided on both sides of the bracket (1), and sliding seats (32) are provided at both ends of the tensioning rod (3). The two sliding seats (32) are respectively slidably connected to the two rails (11), and the sliding seats (32) are lifted and lowered by the cylinder (31).

2. A fabric feeding and tensioning mechanism according to claim 1, characterized in that: Two photoelectric sensors (5) are provided at the front end of the upper fabric mechanism (2) for monitoring whether the fabric is deflected when entering the upper fabric mechanism (2).

3. A fabric feeding and tensioning mechanism according to claim 1, characterized in that: The upper fabric mechanism (2) comprises a base (25), on which auxiliary rollers (23) and driving rollers (24) are rotatably mounted and distributed up and down, and at least one set of the auxiliary rollers (23) and driving rollers (24) is driven to rotate by a motor (21).

4. A fabric feeding and tensioning mechanism according to claim 3, characterized in that: An auxiliary rod (22) is arranged above the auxiliary roller (23), and the height of the auxiliary rod (22) is adjustable.

5. A fabric feeding and tensioning mechanism according to claim 4, characterized in that: Lifting blocks (26) are fixedly provided at both ends of the auxiliary rod (22). The lifting blocks (26) are movably mounted on the base (25) up and down. The height of the lifting blocks (26) is adjusted by rotating the adjusting bolts (27).

6. The fabric feeding and tensioning mechanism according to claim 1, characterized in that: The cylinders (31) are provided in two groups and are fixed on both sides of the bracket (1); the output ends of the cylinders (31) are connected to the sliding seats (32).

7. The fabric feeding and tensioning mechanism according to claim 1, characterized in that: Both ends of the tensioning rod (3) are rotatably connected to the sliding seat (32) via a rotating shaft.

8. The fabric feeding and tensioning mechanism according to claim 1, characterized in that: Position sensors (12) are provided at the upper and lower ends of the track (11) for limiting the position of the sliding seat (32).

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