Cloth roll unwinding device

Abstract

The utility model discloses a cloth roll unwinding device which comprises a support. The bracket comprises two symmetrically arranged side plates and a plurality of connecting beams connected between the side plates; a U-shaped mounting groove is formed in the top of the side plate, a cloth roller placing device is fixedly mounted at the U-shaped mounting groove, the cloth roller placing device comprises a plurality of pressure-bearing rollers and two groups of mounting frames positioned on two sides of the pressure-bearing rollers, the two groups of mounting frames are respectively positioned on two sides of the U-shaped mounting groove, and the mounting frames are also U-shaped; the two sets of mounting frames are fixedly connected with the side plates through first fixing bolts, and the inner walls of the mounting frames are located on the inner sides of the inner walls of the U-shaped mounting grooves. The pressure-bearing roller comprises a roller body and a roller shaft; the compression roller is pressed on the surface of a yardage roll, so that cloth on the surface of the yardage roll is prevented from loosening, and the spring plate is arranged, so that the situation that the hydraulic cylinder shrinks too much and accordingly the yardage roll is crushed can be prevented.

Description

Technical Field

[0001] The utility model relates to the field of cloth processing, in particular to a cloth roll unwinding device. Background Art

[0002] The water jet loom is a shuttleless loom that uses a jet of water to pull the weft yarn through the shed. The frictional traction of the water jet weft insertion on the weft yarn is greater than that of the air jet weft insertion, and the diffusion is small. The cloth is rolled up through the cloth roll inside the water jet loom. After the spray weaving is completed, the cloth roll needs to be cut into smaller cloth rolls.

[0003] For example, the patent with authorization announcement number CN220787495U discloses an independent cloth unwinding device, including a frame, a sliding frame, a cloth roller and a driving assembly, wherein the cloth roller is rotatably connected to the sliding frame, the sliding frame is slidably connected to the frame and the sliding direction is along the axial direction of the cloth roller, and the driving assembly is connected to the sliding frame and is used to drive the sliding frame to slide; it also relates to an automatic cloth cutting and tube threading equipment, including the above-mentioned independent cloth unwinding device, and also including an automatic cloth cutting and tube threading mechanism, the independent cloth unwinding device is located at the front side of the automatic cloth cutting and tube threading mechanism and is not connected to the automatic cloth cutting and tube threading mechanism.

[0004] The above patent can be placed on the front side of different automatic cloth cutting and tube threading equipment according to usage requirements, and according to the size and placement position, the driving component is used to adjust the position of the sliding frame and the cloth roller along the axial direction of the cloth roller, so as to solve the technical problem that the cloth unwinding mechanism in the prior art cannot be adapted to different automatic cloth cutting and tube threading equipment; however, the disadvantage of the unwinding device of the above patent is that the cloth roller is inconvenient to replace, and as the cloth on the cloth roller is unwound, the cloth is prone to loosen, thereby causing the released cloth to wrinkle.

[0005] Therefore, it is necessary for us to improve such a structure to overcome the above-mentioned defects. Utility Model Content

[0006] The purpose of the utility model is to provide a cloth roll unwinding device to solve the problems raised in the above background technology.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A cloth roll unwinding device comprises a bracket; the bracket comprises two symmetrically arranged side plates and a plurality of connecting beams connected between the side plates; a U-shaped mounting groove is provided on the top of the side plate, a cloth roll placing device is fixedly installed at the U-shaped mounting groove, the cloth roll placing device comprises a plurality of pressure rollers and two groups of mounting frames located on both sides of the pressure roller, the two groups of mounting frames are respectively located on both sides of the U-shaped mounting groove, the mounting frames are also U-shaped, the two groups of mounting frames are fixedly connected to the side plates by first fixing bolts, and the inner wall of the mounting frame is located inside the inner wall of the U-shaped mounting groove side; the pressure roller includes a roller body and a roller shaft; the roller body is rotatably mounted on the roller shaft, and the two ends of the roller shaft are respectively fixedly connected to the two sets of mounting frames, and also includes a cloth roll pressing device, the cloth roll pressing device includes a connecting shaft rotatably connected to the bracket, the two ends of the connecting shaft are rotatably connected through bearings and bearing seat side plates, and two connecting arms are fixedly connected to the connecting shaft, and the tops of the two connecting arms are rotatably connected with a pressure roller through bearings and bearing seats; one end of the connecting shaft passes through the side plate and is fixedly connected to one end of a spring plate through a shaft clamp.

[0009] Furthermore, there are at least six pressure rollers, and the six pressure rollers are arranged in a semicircular array.

[0010] Furthermore, the top opening of the inner wall of the mounting frame is arranged in an arc transition to prevent the end of the cloth roller from being scratched.

[0011] Furthermore, the cloth roll pressing device also includes a hydraulic cylinder, the tail of the hydraulic cylinder is rotatably connected to the hydraulic cylinder seat via a first pin shaft, and the output shaft of the hydraulic cylinder is rotatably connected to a second pin shaft via a fisheye joint, and the second pin shaft is also fixedly connected to the other end of the spring plate via a shaft clamp.

[0012] Furthermore, the shaft clamp includes a shaft-embracing portion and a connecting portion. The shaft-embracing portion is generally in a circular shape, and an opening is provided on the circular shaft-embracing portion. Both ends of the opening are connected to plate-shaped connecting portions. The connecting portions are located on both sides of the spring plate and are fixedly connected to the spring plate by bolts.

[0013] Furthermore, the spring plate is an elastic steel plate.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The cloth roll placement device with a top opening is adopted, which makes it easier to place and take out the cloth roll. The cloth roll to be unwound is placed on the cloth roll placement device, and the surface of the end of the cloth roll contacts the roll body. By rotating the pressure roller, the cloth roll can be easily rotated without causing stagnation.

[0016] The pressure roller presses on the surface of the cloth roll to prevent the cloth on the surface of the cloth roll from loosening. Compared with the method of directly using a hydraulic cylinder to drive the pressure roller to press on the surface of the cloth roll, the utility model provides a spring plate to prevent the hydraulic cylinder from shrinking too much and causing the cloth roll to be crushed. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of a cloth roll unwinding device.

[0018] Figure 2 It is a front view of the cloth roll unwinding device.

[0019] Figure 3 It is a top view of the cloth roll unwinding device.

[0020] Figure 4 It is a side view of the cloth roll unwinding device.

[0021] Figure 5 It is a structural schematic diagram of a cloth roller placing device in a cloth roll unwinding device.

[0022] Figure 6 for Figure 1 A partial enlarged view of point A in the middle. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantages of the embodiment of the utility model clearer, the technical scheme in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. The components of the embodiment of the utility model generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiment of the utility model provided in the drawings is not intended to limit the scope of the utility model claimed for protection, but merely represents the selected embodiment of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model.

[0024] See also Figure 1-6 , a cloth roll unwinding device, comprising a bracket 1;

[0025] The bracket 1 includes two symmetrically arranged side plates 101 and a plurality of connecting beams 102 connected between the side plates 101;

[0026] A U-shaped mounting groove 2 is formed on the top of the side plate 101, and a cloth roller placement device 3 is fixedly installed on the U-shaped mounting groove 2.

[0027] like Figure 6The cloth roller placement device 3 includes a plurality of pressure rollers 320 and two groups of mounting frames 310 located on both sides of the pressure rollers 320. The two groups of mounting frames 310 are respectively located on both sides of the U-shaped mounting groove 2. The mounting frames 310 are also U-shaped. The two groups of mounting frames 310 are fixedly connected to the side plate 101 by first fixing bolts 311, and the inner wall of the mounting frame 310 is located on the inner side of the inner wall of the U-shaped mounting groove 2.

[0028] The pressure roller 320 includes a roller body 321 and a roller shaft 322. There are at least six pressure rollers 320, and the six pressure rollers 320 are arranged in a semicircular array. The roller body 321 is rotatably sleeved on the roller shaft 322, and both ends of the roller shaft 322 are fixedly connected to two sets of mounting frames 310 respectively.

[0029] When the utility model is used, compared with the prior art, the cloth roll placement device 3 with the top opening is adopted, which makes it easier to place and take out the cloth roll. The cloth roll to be unwound is placed on the cloth roll placement device 3, and the surface of the end of the cloth roll contacts the roller body 321. By rotating the pressure roller, the cloth roll can be easily rotated without causing stagnation.

[0030] In this solution, the top opening of the inner wall of the mounting frame 310 is configured in a circular arc transition to prevent the end of the cloth roller from being scratched;

[0031] In this embodiment, a cloth roll pressing device 4 is also included. The cloth roll pressing device 4 includes a connecting shaft 401 rotatably connected to the bracket 1.

[0032] The two ends of the connecting shaft 401 are rotatably connected through bearings and the bearing seat side plates 101. At the same time, two connecting arms 402 are fixedly connected to the connecting shaft, and a pressure roller 403 is rotatably connected between the tops of the two connecting arms 402 through bearings and the bearing seat.

[0033] When the cloth roll 9 is unrolled, the pressing roller 403 presses on the surface of the cloth roll 9, thereby preventing the cloth on the surface of the cloth roll from loosening;

[0034] At the same time, in order to maintain the pressure of the pressure roller 403 on the cloth roll, one end of the connecting shaft 401 passes through the side plate and is fixedly connected to one end of a spring plate 409 through a shaft clamp 404. The spring plate 409 can provide a certain elastic force so that the pressure roller 403 exerts pressure on the surface of the cloth roll; the spring plate 409 is an elastic steel plate;

[0035] As the unwinding progresses, the cloth roll shrinks, and the deformation of the spring plate 409 decreases, and the elastic force provided by the spring plate 409 decreases;

[0036] Therefore, in this solution, the cloth roll pressing device 4 also includes a hydraulic cylinder 405.

[0037] The tail of the hydraulic cylinder 405 is rotatably connected to the hydraulic cylinder seat 410 via a first pin shaft, and the output shaft of the hydraulic cylinder 405 is rotatably connected to a second pin shaft 406 via a fisheye joint 411, and the second pin shaft 406 is fixedly connected to the other end of the spring plate 409 via a shaft clamp 404;

[0038] In this solution, the length of the output shaft of the hydraulic cylinder 405 can be adjusted so that the spring plate 409 can provide a certain elastic force to drive the pressing roller 403 to press the cloth roll;

[0039] In this solution, the shaft clamp 404 includes a shaft holding portion 407 and a connecting portion 408.

[0040] The shaft-holding portion 407 is in a circular shape as a whole, and an opening is provided on the circular shaft-holding portion 407, and both ends of the opening are connected with plate-shaped connecting portions 408, and the connecting portions 408 are located on both sides of the spring plate 409 and are fixedly connected to the spring plate 409 by bolts;

[0041] When the utility model is used, when rolling up, the hydraulic cylinder 405 is extended, and the pressure roller 403 is opened without interfering with the rolling up of the cloth roll, and the end of the cloth roll 9 is placed in the cloth roller placing device 3, and then the hydraulic cylinder 405 is contracted, so that the pressure roller 403 is closely attached to the surface of the cloth roll, and as the unwinding proceeds, the hydraulic cylinder 405 can also be gradually contracted to maintain the pressing state of the pressure roller 403;

[0042] Compared with the method of directly using the hydraulic cylinder 405 to drive the pressing roller 403 to press on the surface of the cloth roll, the utility model provides a spring plate 409 to prevent the hydraulic cylinder from shrinking too much and causing the cloth roll to be crushed.

[0043] In the description of the present utility model, it should be noted that the terms "upper", "lower", "inner", "outer", "left", "right" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use, or the orientation or positional relationship commonly understood by those skilled in the art, which is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the equipment or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present utility model. In addition, the terms "first", "second" and the like are only used to distinguish the description, and cannot be understood as indicating or implying relative importance. In the description of the present utility model, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "connection" and the like should be understood in a broad sense, for example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal connection of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

Claims

1. A cloth roll unwinding device, comprising a bracket; the bracket comprises two symmetrically arranged side plates and a plurality of connecting beams connected between the side plates; It is characterized in that The top of the side plate is provided with a U-shaped mounting groove, and a cloth roller placing device is fixedly installed at the U-shaped mounting groove. The cloth roller placing device comprises a plurality of pressure rollers and two groups of mounting frames located on both sides of the pressure roller, and the two groups of mounting frames are respectively located on both sides of the U-shaped mounting groove, and the mounting frames are also U-shaped, and the two groups of mounting frames are fixedly connected to the side plates by first fixing bolts, and the inner wall of the mounting frame is located on the inner side of the inner wall of the U-shaped mounting groove; the pressure roller comprises a roller body and a roller shaft; the roller body is rotatably sleeved on the roller shaft, and the two ends of the roller shaft are respectively fixedly connected to the two groups of mounting frames, and also comprises a cloth roll pressing device, and the cloth roll pressing device comprises a connecting shaft rotatably connected to the bracket, and the two ends of the connecting shaft are rotatably connected through bearings and bearing seat side plates, and two connecting arms are fixedly connected to the connecting shaft, and the pressure roller is rotatably connected between the tops of the two connecting arms through bearings and bearing seats; one end of the connecting shaft passes through the side plate and is fixedly connected to one end of the spring plate through an axis clamp.

2. The cloth roll unwinding device according to claim 1, It is characterized in that There are at least six pressure rollers, and the six pressure rollers are arranged in a semicircular array.

3. The cloth roll unwinding device according to claim 1, It is characterized in that The top opening of the inner wall of the mounting frame is arranged in an arc transition to prevent the end of the cloth roller from being scratched.

4. The cloth roll unwinding device according to claim 1, It is characterized in that The cloth roll pressing device also includes a hydraulic cylinder, the tail of the hydraulic cylinder is rotatably connected to the hydraulic cylinder seat via a first pin shaft, and the output shaft of the hydraulic cylinder is rotatably connected to a second pin shaft via a fisheye joint, and the second pin shaft is fixedly connected to the other end of the spring plate via a shaft clamp.

5. The cloth roll unwinding device according to claim 4, It is characterized in that The shaft clamp includes a shaft holding portion and a connecting portion. The shaft holding portion is in a circular ring shape as a whole, and an opening is provided on the circular ring-shaped shaft holding portion. Both ends of the opening are connected to plate-shaped connecting portions. The connecting portions are located on both sides of the spring plate and are fixedly connected to the spring plate by bolts.

6. The cloth roll unwinding device according to claim 4, It is characterized in that The spring plate is an elastic steel plate.

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