Fabric tension adjustment device

Abstract

The application discloses a fabric tension adjusting device, which comprises a tension roller (1) and a linear displacement mechanism (2) arranged at both ends of the tension roller (1), the linear displacement mechanism (2) guides the tension roller (1) to move up and down, and realizes the adjustment of the fabric tension, the linear displacement mechanism (2) is arranged above or below the end (1-1) of the tension roller (1), a force direction automatic correction mechanism (3) is arranged between the linear displacement mechanism (2) and the end (1-1) of the tension roller (1), and the force direction automatic correction mechanism (3) always makes the force applied by the end (1-1) of the tension roller (1) to the linear displacement mechanism (2) be in the vertical direction. When the force between the fabric and the tension roller fluctuates, the linear displacement mechanism such as the cylinder shaft and the sliding block can normally move without being affected, and the smooth fabric tension adjustment is ensured.

Description

Technical Field

[0001] This invention relates to a tension regulating device, and more particularly to a fabric tension regulating device for use in various textile, dyeing and finishing equipment. Background Technology

[0002] Existing fabric tension adjustment devices used in various textile and dyeing equipment, such as setting machines and continuous dyeing machines, typically employ two structures: The first structure is for automatically adjusting fabric tension. It includes a tension roller and cylinder shafts set at both ends of the tension roller. The cylinder shafts are driven by cylinders. The cylinders and their shafts are vertically installed below the tension roller. The cylinder shafts are fixedly connected to the ends of the tension roller. That is, the two ends of the tension roller are supported by a cylinder shaft. When working, the cylinder shafts are driven by the cylinders to move up and down, which drives the tension roller to move up and down, thereby realizing the adjustment of fabric tension. However, this fabric tension adjustment device has the following drawbacks during use: when the fabric is being pulled, the magnitude of the force between the fabric and the tension roller fluctuates and the direction of the force is not always perpendicular to the rotation axis of the tension roller. This results in uneven force on both ends of the tension roller and inconsistent force directions, generating torque in different directions. When the force fluctuation between the fabric and the tension roller is large or the displacement stroke of the two cylinder shafts at both ends of the tension roller is large, the force difference at both ends of the tension roller will be very large and large torque in different directions will be generated. This directly causes the cylinder shafts fixed at both ends of the tension roller to be obstructed when moving up and down, or even to be unable to move and become stuck. Ultimately, this leads to inaccurate tension control or even failure, resulting in a large number of defective fabrics.

[0003] The second structure is for manually adjusting fabric tension. It includes several counterweights, a steel wire rope, a slider, and a guide rail. The guide rail is vertically fixed on the frame of the textile or dyeing and finishing equipment. The slider is slidably connected to the guide rail. The upper end of the slider is fixedly connected to one end of the steel wire rope, and the lower end of the slider is fixedly connected to the end of the tension roller. The other end of the steel wire rope is fixedly connected to the counterweights via a pulley. During operation, by adding or removing counterweights of different weights, the slider is driven to move up and down, which in turn drives the tension roller to move up and down, thereby adjusting the fabric tension. However, this fabric tension adjustment device has the following drawbacks during use: when the fabric is being pulled, the magnitude of the force between the fabric and the tension roller fluctuates and the direction of the force is not always perpendicular to the rotation axis of the tension roller. This results in uneven force on both ends of the tension roller and inconsistent force directions, generating torque in different directions. When the force fluctuation between the fabric and the tension roller is large, the force difference between the two ends of the tension roller will be very large and generate large torque in different directions. This directly causes the sliders fixed at both ends of the tension roller to be obstructed when moving up and down, or even the sliders to be unable to move and jam against the guide rail. Ultimately, this leads to inaccurate tension control or even failure, resulting in a large number of defective fabrics. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a fabric tension adjustment device that can ensure the normal movement of linear displacement mechanisms such as cylinder shaft and slider is not affected when the force between the fabric and tension roller fluctuates, can ensure the smooth adjustment of fabric tension, and has a simple structure.

[0005] To solve the above-mentioned technical problems, the present invention employs a fabric tension adjustment device, including a tension roller and linear displacement mechanisms disposed at both ends of the tension roller. The linear displacement mechanisms guide the tension roller to move up and down to adjust the fabric tension. The linear displacement mechanisms are disposed above or below the ends of the tension roller. An automatic force direction correction mechanism is provided between the linear displacement mechanism and the ends of the tension roller. The automatic force direction correction mechanism ensures that the force applied by the ends of the tension roller to the linear displacement mechanism is always in the vertical direction.

[0006] In a preferred embodiment of the present invention, the linear displacement mechanism includes a cylinder shaft, a motor shaft, a push rod, or a slider.

[0007] In a preferred embodiment of the present invention, the automatic force direction correction mechanism includes a connecting plate and a ball head rod. The linear displacement mechanism is a cylinder shaft, a motor shaft, or a push rod. The connecting plate is fixedly installed at the end of the cylinder shaft, motor shaft, or push rod. The ball head of the ball head rod is movably connected to the connecting plate, and the rod body of the ball head rod is fixedly or detachably connected to the end of the tension roller.

[0008] In a preferred embodiment of the present invention, the connecting plate includes an upper connecting plate and a lower connecting plate, the automatic force direction correction mechanism further includes a ball head sleeve and a connecting sleeve, the linear displacement mechanism is located above the end of the tension roller, the upper connecting plate is fixedly installed at the lower end of the cylinder shaft, motor shaft or push rod, the lower connecting plate has a vertically arranged first screw hole, the lower connecting plate is fixedly installed on the bottom surface of the upper connecting plate, the ball head rod has a ball head and a rod body, the ball head sleeve is cylindrical and has a ball hole and an external thread, the ball head of the ball head rod is movably embedded in the ball hole of the ball head sleeve, the external thread of the ball head sleeve is threadedly connected to the first screw hole of the lower connecting plate, the rod body of the ball head rod is threadedly connected to the connecting sleeve, and the connecting sleeve is fitted onto the end of the tension roller.

[0009] In a preferred embodiment of the present invention, a bearing is provided between the connecting sleeve and the end of the tension roller, and the connecting sleeve is fitted onto the end of the tension roller via the bearing.

[0010] In a preferred embodiment of the present invention, the cylinder shaft is driven by a cylinder, the motor shaft is driven by a linear motor, the push rod is driven by an electric cylinder, and the cylinder, linear motor or electric cylinder is fixedly mounted on the housing or the frame of the equipment.

[0011] In a preferred embodiment of the present invention, the automatic force direction correction mechanism includes a connecting block and a ball head rod, the linear displacement mechanism is a slider, the connecting block is fixedly mounted on the slider, the ball head of the ball head rod is movably connected to the connecting block, and the body of the ball head rod is fixedly or detachably connected to the end of the tension roller.

[0012] In a preferred embodiment of the present invention, the automatic force direction correction mechanism further includes a ball head sleeve and a connecting sleeve. The slider is slidably or rollingly connected to the vertically installed guide rail. The connecting block has a vertically arranged second screw hole, and the upper end of the connecting block is connected to one end of a wire rope. The other end of the wire rope is connected to a counterweight block via a pulley. The ball head rod has a ball head and a rod body. The ball head sleeve is cylindrical and has a ball hole and an external thread. The ball head rod is movably fitted into the ball hole of the ball head sleeve. The external thread of the ball head sleeve is threadedly connected to the second screw hole of the connecting block. The rod body of the ball head rod is threadedly connected to the connecting sleeve. The connecting sleeve is fitted onto the end of the tension roller.

[0013] In a preferred embodiment of the present invention, the guide rail and pulley are mounted on the housing or the frame of the equipment.

[0014] By adopting the above structure, the present invention has the following beneficial effects: The linear displacement mechanism of the present invention preferably includes a cylinder shaft, a motor shaft, a push rod, or a slider. An automatic force direction correction mechanism is provided between the linear displacement mechanism and the end of the tension roller. One preferred embodiment of the automatic force direction correction mechanism includes a connecting plate and a ball-head rod. The linear displacement mechanism is a cylinder shaft, a motor shaft, or a push rod. The connecting plate is fixedly installed on the end of the cylinder shaft, motor shaft, or push rod. The ball head of the ball-head rod is movably connected to the connecting plate. The body of the ball-head rod is fixedly or detachably connected to the end of the tension roller. Another preferred embodiment of the automatic force direction correction mechanism includes a connecting block and a ball-head rod. The linear displacement mechanism is a slider. The connecting block is fixedly installed on the slider. The ball head of the ball-head rod is movably connected to the connecting block. The body of the ball-head rod is fixedly or detachably connected to the end of the tension roller. During operation, since the ball head of the ball rod can rotate freely within the ball hole of the ball head sleeve in the connecting plate or connecting block, when the magnitude of the force between the fabric and the tension roller fluctuates and the direction of the force is not always perpendicular to the axis of the tension roller, the axis of the ball rod is no longer perpendicular to the horizontal plane. The automatic force direction correction mechanism allows the angle between the axis of the ball rod and the horizontal plane to vary within a certain range from the 90-degree base point. In this way, the automatic force direction correction mechanism ensures that the force applied by the end of the tension roller to the linear displacement mechanism is always in the vertical direction, thereby ensuring that the linear displacement mechanism such as the cylinder shaft and the slider can move up and down normally without being affected, and will not jam, thus ensuring that the fabric tension adjustment is carried out smoothly.

[0015] This invention has a simple structure, is easy to implement, simple to install and operate, and has low manufacturing cost. Attached Figure Description

[0016] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0017] Figure 1 This is a schematic diagram of the first structure of the fabric tension adjustment device of the present invention.

[0018] Figure 2 for Figure 1 Enlarged diagram of point A in the middle.

[0019] Figure 3 This is a schematic diagram of a second structure of the fabric tension adjustment device of the present invention.

[0020] Figure 4 This is a schematic diagram of a preferred embodiment of the fabric tension regulating device of the present invention.

[0021] Figure 5 This is a schematic diagram of the third structure of the fabric tension adjustment device of the present invention.

[0022] Figure 6 for Figure 5 Enlarged diagram of point B in the middle.

[0023] Figure 7 for Figure 5 A side view diagram.

[0024] Figure 8 for Figure 5 A three-dimensional schematic diagram showing the sliding or rolling connection between the slider and the guide rail. Implementation

[0025] See Figures 1 to 8 The illustrated fabric tension adjusting device includes a tension roller 1 and linear displacement mechanisms 2 disposed at both ends of the tension roller 1. Guide rollers 11 are respectively provided on the running path of the fabric 10 and on the front and rear sides of the tension roller 1. Figure 1 The guide roller 11 is not shown. The linear displacement mechanism 2 guides or drives the tension roller 1 to move up and down to adjust the fabric tension. The linear displacement mechanism 2 is located above or below the end 1-1 of the tension roller 1. An automatic force direction correction mechanism 3 is provided between the linear displacement mechanism 2 and the end 1-1 of the tension roller 1. The automatic force direction correction mechanism 3 ensures that the force applied by the end 1-1 of the tension roller 1 to the linear displacement mechanism 2 is always in the vertical direction, which is perpendicular to the horizontal plane or the ground.

[0026] In a preferred embodiment of the present invention, the linear displacement mechanism 2 includes a cylinder shaft, a motor shaft, a push rod, or a slider.

[0027] As a first preferred embodiment of the present invention, such as Figure 1 , 2 As shown in Figure 3, the automatic force direction correction mechanism 3 includes a connecting plate and a ball head rod. The linear displacement mechanism 2 is a cylinder shaft, a motor shaft, or a push rod. The connecting plate is fixedly installed at the end of the cylinder shaft, motor shaft, or push rod. The ball head of the ball head rod is movably connected to the connecting plate. The body of the ball head rod is fixedly or detachably connected to the end 1-1 of the tension roller 1.

[0028] As a preferred embodiment of the present invention, such as Figure 1 , 2 As shown, the connecting plate includes an upper connecting plate 3-1 and a lower connecting plate 3-4. The automatic force direction correction mechanism 3 also includes a ball head sleeve 3-3 and a connecting sleeve 3-5. The linear displacement mechanism 2 is located above the end 1-1 of the tension roller 1. The upper connecting plate 3-1 is fixedly installed on the lower end of the cylinder shaft, motor shaft, or push rod by screws or welding. Only the cylinder shaft is shown in the figure; the motor shaft and push rod are not shown. The lower connecting plate 3-4 has a vertically arranged first screw hole 3a. The lower connecting plate 3-4 is fixedly installed on the bottom surface of the upper connecting plate 3-1 by screws. The ball head rod 3-2 has a ball head 3b and a rod body 3. c. The ball head sleeve 3-3 is cylindrical and has a ball hole 3d and an external thread 3e. The ball head 3b is adapted to the ball hole 3d. The ball head 3b of the ball head rod 3-2 is movably fitted into the ball hole 3d of the ball head sleeve 3-3. The external thread 3e of the ball head sleeve 3-3 is threadedly connected to the first threaded hole 3a of the lower connecting plate 3-4. The rod body 3c of the ball head rod 3-2 is preferably threadedly connected to the threaded hole on the connecting sleeve 3-5 through a threaded section 3c-1 at its lower part. The connecting sleeve 3-5 is preferably tightly fitted or fitted onto the end 1-1 of the tension roller 1 by a set screw. In this invention, the lower connecting plate 3-4 and the ball head sleeve 3-3 can also be installed on the connecting sleeve 3-5, and the rod body 3c of the ball head rod 3-2 can be threadedly connected to the upper connecting plate 3-1, which is not shown in the figure.

[0029] As a second preferred embodiment of the present invention, when the tension roller 1 is made of a lightweight material such as carbon fiber or plastic, such as... Figure 3 As shown, the linear displacement mechanism 2 can also be located below the end 1-1 of the tension roller 1, and the installation structure between the components is similar to that of the preferred embodiment described above.

[0030] As a preferred embodiment of the present invention, such as Figure 4 As shown, a bearing 3-6 is provided between the connecting sleeve 3-5 and the end 1-1 of the tension roller 1, and the connecting sleeve 3-5 is fitted onto the end 1-1 of the tension roller 1 via the bearing 3-6.

[0031] In this invention, such as Figure 1As shown, the cylinder shaft is driven by cylinder 4. Cylinder 4 is preferably a cylinder with a guide rod. The end plate of the cylinder with the guide rod can be used as a connecting plate or an upper connecting plate 3-1. Cylinder 4 is preferably connected to an electro-pneumatic converter 12 and an electric controller 13. The motor shaft is driven by a linear motor, and the push rod is driven by an electric cylinder. Cylinder 4, the linear motor or the electric cylinder are fixedly installed on the housing 9 or on the frame of equipment such as textile or dyeing equipment. The linear motor and the electric cylinder are not shown in the figure.

[0032] As a third preferred embodiment of the present invention, such as Figures 5 to 8 As shown, the automatic force direction correction mechanism 3 includes a connecting block 3-7 and a ball head rod. The linear displacement mechanism 2 is a slider. The connecting block 3-7 is fixedly installed on the slider by screws. The ball head of the ball head rod is movably connected to the connecting block 3-7. The body of the ball head rod is fixedly or detachably connected to the end 1-1 of the tension roller 1.

[0033] As a preferred embodiment of the present invention, such as Figures 5 to 8 As shown, the automatic force direction correction mechanism 3 further includes a ball head sleeve 3-3 and a connecting sleeve 3-5. The slider is slidably or rollingly connected to the vertically installed guide rail 5. The connecting block 3-7 has a vertically arranged second screw hole 3f, and the upper end of the connecting block 3-7 is connected to one end of the wire rope 6. The other end of the wire rope 6 is connected to the counterweight block 8 via a pulley 7. The ball head rod 3-2 has a ball head 3b and a rod body 3c. The ball head sleeve 3-3 is cylindrical and has a ball hole 3d and an external screw. The ball head 3b of the ball head rod 3-2 is adapted to the ball hole 3d of the ball head sleeve 3-3. The external thread 3e of the ball head sleeve 3-3 is threadedly connected to the second threaded hole 3f of the connecting block 3-7. The rod body 3c of the ball head rod 3-2 is preferably threadedly connected to the threaded hole 3d on the connecting sleeve 3-5 through a threaded section 3c-1 at its lower part. The connecting sleeve 3-5 is preferably tightly fitted or fitted onto the end 1-1 of the tension roller 1 by a set screw.

[0034] In this invention, the guide rail 5 and pulley 7 are mounted on the housing 9 or on the frame of equipment such as textile or dyeing equipment.

[0035] After testing, the present invention can ensure that the linear displacement mechanism such as the cylinder shaft and the slider can move normally without being affected when the force between the fabric and the tension roller fluctuates, thus ensuring the smooth adjustment of fabric tension and achieving good results.

Claims

1. A fabric tension adjusting device, comprising a tension roller (1) and linear displacement mechanisms (2) disposed at both ends of the tension roller (1), wherein the linear displacement mechanisms (2) guide the tension roller (1) to move up and down to adjust the fabric tension, characterized in that: The linear displacement mechanism (2) is located above or below the end (1-1) of the tension roller (1). An automatic force direction correction mechanism (3) is provided between the linear displacement mechanism (2) and the end (1-1) of the tension roller (1). The automatic force direction correction mechanism (3) ensures that the force applied by the end (1-1) of the tension roller (1) to the linear displacement mechanism (2) is always in the vertical direction. The force direction automatic correction mechanism (3) includes a connecting plate and a ball head rod. The linear displacement mechanism (2) is a cylinder shaft, a motor shaft, or a push rod. The connecting plate is fixedly installed at the end of the cylinder shaft, motor shaft, or push rod. The ball head of the ball head rod is movably connected to the connecting plate. The body of the ball head rod is fixedly or detachably connected to the end (1-1) of the tension roller (1). The connecting plate includes an upper connecting plate (3-1) and a lower connecting plate (3-4). The automatic force direction correction mechanism (3) also includes a ball head sleeve (3-3) and a connecting sleeve (3-5). The linear displacement mechanism (2) is located above the end (1-1) of the tension roller (1). The upper connecting plate (3-1) is fixedly installed on the lower end of the cylinder shaft, motor shaft, or push rod. The lower connecting plate (3-4) has a vertically arranged first screw hole (3a). The lower connecting plate (3-4) is fixedly installed on the bottom surface of the upper connecting plate (3-1). The ball head rod (3-2) has a ball head (3b). The ball head sleeve (3-3) is cylindrical and has a ball hole (3d) and an external thread (3e). The ball head (3b) of the ball head rod (3-2) is movably fitted into the ball hole (3d) of the ball head sleeve (3-3). The external thread (3e) of the ball head sleeve (3-3) is threadedly connected to the first thread hole (3a) of the lower connecting plate (3-4). The rod body (3c) of the ball head rod (3-2) is threadedly connected to the connecting sleeve (3-5). The connecting sleeve (3-5) is fitted onto the end (1-1) of the tension roller (1).

2. The fabric tension adjusting device according to claim 1, characterized in that: A bearing (3-6) is provided between the connecting sleeve (3-5) and the end (1-1) of the tension roller (1), and the connecting sleeve (3-5) is fitted onto the end (1-1) of the tension roller (1) via the bearing (3-6).

3. The fabric tension adjusting device according to claim 1 or 2, characterized in that: The cylinder shaft is driven by the cylinder (4), the motor shaft is driven by the linear motor, the push rod is driven by the electric cylinder, and the cylinder (4), the linear motor or the electric cylinder are fixedly installed on the housing (9) or the frame of the equipment.

4. A fabric tension adjusting device, comprising a tension roller (1) and linear displacement mechanisms (2) disposed at both ends of the tension roller (1), wherein the linear displacement mechanisms (2) guide the tension roller (1) to move up and down to adjust the fabric tension, characterized in that: The linear displacement mechanism (2) is located above or below the end (1-1) of the tension roller (1). An automatic force direction correction mechanism (3) is provided between the linear displacement mechanism (2) and the end (1-1) of the tension roller (1). The automatic force direction correction mechanism (3) ensures that the force applied by the end (1-1) of the tension roller (1) to the linear displacement mechanism (2) is always in the vertical direction. The automatic force direction correction mechanism (3) includes a connecting block (3-7) and a ball head rod. The linear displacement mechanism (2) is a slider. The connecting block (3-7) is fixedly installed on the slider. The ball head of the ball head rod is movably connected to the connecting block (3-7). The body of the ball head rod is fixedly or detachably connected to the end (1-1) of the tension roller (1). The automatic force direction correction mechanism (3) further includes a ball head sleeve (3-3) and a connecting sleeve (3-5). The slider is slidably or rollingly connected to the vertically installed guide rail (5). The connecting block (3-7) has a vertically arranged second screw hole (3f), and the upper end of the connecting block (3-7) is connected to one end of the wire rope (6). The other end of the wire rope (6) is connected to the counterweight block (8) via a pulley (7). The ball head rod (3-2) has a ball head (3b) and a rod body (3c). The ball head sleeve (3-3) is round. The ball head sleeve (3-3) is cylindrical and has a ball hole (3d) and an external thread (3e). The ball head (3b) of the ball head rod (3-2) is movably fitted into the ball hole (3d) of the ball head sleeve (3-3). The external thread (3e) of the ball head sleeve (3-3) is threadedly connected to the second thread hole (3f) of the connecting block (3-7). The rod body (3c) of the ball head rod (3-2) is threadedly connected to the connecting sleeve (3-5). The connecting sleeve (3-5) is fitted onto the end (1-1) of the tension roller (1).

5. The fabric tension adjusting device according to claim 4, characterized in that: The guide rail (5) and pulley (7) are installed on the housing (9) or the frame of the equipment.

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