Fabric tensile elastic recovery rate on-line detection control device

Abstract

This utility model discloses an online detection and control device for the tensile elastic recovery rate of fabrics. The device includes a computer controller, a constant elongation load force detection and calibration module, an automatic adjustment control load weight module, and a constant elongation load force loading roller. The computer controller is used to issue the constant elongation load force requirement and calculate the constant elongation length of the fabric. The automatic adjustment control load weight module and the constant elongation load force loading roller are arranged as a set and are oscillating on a continuous dyeing machine. The magnitude of the constant elongation load force applied to the fabric by the constant elongation load force loading roller is adjusted by the oscillation of the automatic adjustment control load weight module and the constant elongation load force loading roller. The constant elongation load force detection and calibration module is installed at the output end of the continuous dyeing machine. This utility model enables precise control of the constant elongation load force during fabric dyeing.

Description

Technical Field

[0001] This utility model relates to the field of dyeing machinery technology, specifically to an online detection and control device for the tensile elastic recovery rate of fabrics. Background Technology

[0002] Currently, elastic fabrics such as webbing, cords, and woven tapes made from synthetic fibers of various specifications possessing high elongation and resilience are dyed on continuous dyeing machines. This is achieved by using the load weight (or cylinder pressure) pressed onto the fabric to maintain a certain elongation load within a specific range, thus meeting customer requirements for the fabric's elastic recovery rate. In actual production, due to the wide variety of fabric specifications and the varying quantities of fabrics dyed in the same batch, as well as differing customer requirements for elastic recovery rate, the calibration and testing of the elongation load is a crucial control factor in the dyeing process of elastic fabrics and requires careful monitoring.

[0003] In the dyeing industry, the traditional method of determining the required elongation load is based on manual judgment and experience. This is achieved by manually adjusting the elongation load applied to the fabric, along with the weight of the pressure roller. However, due to the lack of precise measurement and quantification data, it is impossible to determine the appropriate elongation load required for the fabric's elastic recovery rate. When the elongation load is too high, the elastic fabric becomes permanently fixed at the high temperature during the dyeing process, leading to a decrease in elasticity or even loss of elasticity. When the elongation load is too low, the elastic fabric experiences problems such as machine sluggishness, tangling, wrinkles, and creases during the dyeing process. Furthermore, the fabric shrinks after dyeing, severely affecting the fabric's elastic recovery rate, dyeing quality, and stability. Utility Model Content In order to at least solve one of the problems existing in the prior art, this utility model provides an online detection and control device for the tensile elastic recovery rate of fabrics.

[0004] To achieve the purpose of this utility model, the online detection and control device for fabric tensile elastic recovery rate provided by this utility model includes a computer controller, a constant elongation load force detection and calibration module, an automatic adjustment and control load weight module, and a constant elongation load force loading roller. The computer controller is used to issue the required elongation load force and to calculate the required elongation of the fabric; The automatic adjustment control load weight module and the constant elongation load force loading roller are set together and used for swinging on the continuous dyeing machine. The magnitude of the constant elongation load force applied to the fabric by the constant elongation load force loading roller is adjusted by the swing of the automatic adjustment control load weight module and the constant elongation load force loading roller. The constant elongation load detection and calibration module is used to be installed at the output end of the continuous dyeing machine.

[0005] Furthermore, the constant elongation load force detection and calibration module includes a base frame, a front frame, a rear frame, a front clamping device, a rear clamping device, a weight sensor, and an automated optical grating; The front frame and the rear frame are arranged opposite each other and can be movably mounted on the base frame; The front clamping device is swung on the front frame, and the rear clamping device is fixed on the rear frame. The distance between the front clamping device and the rear clamping device is adjustable. The weight sensor is mounted on the front frame; The signal transmitter and signal receiver of the automated grating are fixed on the front frame and the rear frame, respectively.

[0006] Furthermore, the constant elongation load force detection and calibration module also includes an upper frame, a first guide rail, and a lower frame. The rear frame is mounted on the upper frame, and the upper frame is slidably mounted on the first guide rail. The distance between the front clamping device and the rear clamping device is adjusted by sliding the upper frame. The first guide rail is mounted on the lower frame, and the lower frame is slidably mounted on the base frame. The front frame is mounted on the lower frame.

[0007] Furthermore, the constant elongation load detection and calibration module also includes an electric cylinder device, the pull rod of which is connected to the upper frame.

[0008] Furthermore, the constant elongation load detection and calibration module also includes a tension cylinder, the output end of which is connected to the lower frame.

[0009] Furthermore, both the front clamping device and the rear clamping device include a cylinder assembly, a pressure beam assembly, an upper pressure die, and a lower pressure die. The output end of the cylinder assembly is connected to the pressure beam assembly. The upper pressure die and the lower pressure die are arranged opposite to each other, and the upper pressure die is connected to the pressure beam assembly. The cylinder assembly drives the clamping and separation of the pressure die and the lower pressure die.

[0010] Furthermore, the automatic adjustment and control load weight module is connected to one side of the constant elongation load force loading roller to form a whole, and the whole is set on the continuous dyeing machine through bearings.

[0011] Furthermore, the automatic adjustment and control load weight module includes a control motor, a lead screw module, a counterweight, a distance sensor, and an angle sensor. The lead screw module is connected to the control motor, the counterweight is movably mounted on the lead screw module, the distance sensor is used to detect the real-time movement distance of the counterweight, and the angle sensor is used to detect the angle between the automatic adjustment and control load weight module and the horizontal after the constant elongation load force loading roller swings after the counterweight moves.

[0012] When using this control device When the fabric is dyed in a continuous dyeing machine, the fabric is clamped by a front clamping device and a rear clamping device. The entire system moves the front and rear frames towards the front frame, and the front and rear clamping devices move accordingly, so that the fabric at the front end of the system is in a relaxed state. Adjust the distance between the front clamping device and the rear clamping device. When the fabric hangs down naturally and touches the automatic grating detection point, the arch height h of the fabric in the arc state is obtained by the distance between the preset automatic grating detection point and the lower pressure die plane in the front clamping device, as well as the chord length between the front clamping device and the rear clamping device. The computer controller calculates the length of the fabric in the free state, sets the fabric stretching multiple according to the fabric type, and obtains the fixed stretch length of the fabric. After receiving the fixed elongation load force requirement from the computer controller, the automatic adjustment and control load weight module drives the lead screw module to move by controlling the motor, which in turn drives the counterweight to move. The distance sensor provides feedback on the real-time movement distance of the counterweight, and the actual fixed elongation load force acting on the fabric is calculated by combining the angle sensor and the fixed elongation load force loading roller.

[0013] Furthermore, the conversion formula for the constant elongation load force actually acting on the fabric is:

[0014] In the formula, This refers to the load force applied to the fabric at a given elongation. The automatic adjustment and control load weight module, and the fixed elongation load force applied to the pressure roller, are used to control the overall weight of the part that swings up and down around the bearing. The lever length from the counterweight to the point of force application. The included angle is detected by the angle sensor.

[0015] Compared with the prior art, the present invention can achieve at least the following beneficial effects: This invention can simultaneously detect and calibrate the fixed elongation length and fixed elongation load of one or more high-elastic fabrics of the same specification. It can also automatically adjust the load weight pressed on the fabric by the continuous dyeing machine through the automatic adjustment and control load weight module, so as to accurately control the fixed elongation load during the dyeing process, thereby ensuring the elastic recovery rate of the fabric and the quality of dyeing, and improving the efficiency and economic benefits of fabric dyeing. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the online detection and control device for the tensile elastic recovery rate of fabric provided in this embodiment of the utility model.

[0017] Figure 2 This is a schematic diagram of the structure of the constant elongation load force detection and calibration module in this embodiment of the utility model.

[0018] Figure 3This is a schematic diagram of the automatic load weight adjustment and control module in an embodiment of this utility model.

[0019] Figure 4 This is a schematic diagram showing the setup of the automatic adjustment and control load weight module and the constant elongation load force loading roller in this embodiment of the utility model.

[0020] Figure 5 This is a schematic diagram of the front clamping device in an embodiment of this utility model. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0022] Please see Figure 1 This utility model provides an online detection and control device for the tensile elastic recovery rate of high-extensibility and high-resilience synthetic fiber fabrics. The device includes a computer controller 1, a constant elongation load force detection and calibration module 2, an automatic adjustment control load weight module 3, and a constant elongation load force loading roller 5. Both the automatic adjustment control load weight module 3 and the constant elongation load force loading roller 5 are fixed to a continuous dyeing machine 4. The constant elongation load force detection and calibration module 2 is located at the fabric output end of the continuous dyeing machine 4. When the fabric passes through the constant elongation load force detection and calibration module 2, the constant elongation load force will be automatically detected as the target value.

[0023] In one embodiment of this utility model, please refer to Figure 2 The constant elongation load detection and calibration module 2 includes a front frame 201, a rear frame 213, a swing frame 202, a front clamping device 203, a rear clamping device 214, a weight sensor 204, an automated light grating 205, a first guide rail 206, a tension cylinder 207, an upper frame 208, an electric cylinder device 209, a lower frame 210, a second guide rail 211, and a base frame 212.

[0024] The front frame 201 and the rear frame 213 are arranged opposite to each other. The swing frame 202 is rotatably connected to the front frame 201 through bearings. The front clamping device 203 is fixed on the swing frame 202, which can realize that the front clamping device 203 swings on the front frame 201 through the swing frame 202. When the fabric is tightened, the front clamping device 203 swings in the direction of fabric travel to press against the weight sensor 204, so as to detect the constant elongation load force of the fabric.

[0025] The front frame 201 is fixed to the lower frame 210 by bolts. The lower frame 210 is slidably mounted on the second guide rail 211. The front frame 201 moves with the back-and-forth movement of the lower frame 210.

[0026] The rear clamping device 214 is fixed on the rear frame 213, which is connected to the upper frame 208. The upper frame 208 is slidably mounted on the first guide rail 206, which is fixed on the lower frame 210. The fixed seat of the electric cylinder device 209 is fixed to the upper frame 208 by bolts. The output end of the electric cylinder device 209, i.e., the pull rod, is connected to the front frame 201. Driven by the electric cylinder device 209, the rear frame 213, the rear clamping device 214, and the upper frame 208 move back and forth along the first guide rail 206 fixed on the lower frame 210 to reduce the distance between the rear clamping device 214 and the front clamping device 203, so that the fabric between the rear clamping device 214 and the front clamping device 203 hangs down naturally.

[0027] The electric cylinder device 209 includes a motor, gears, a lead screw nut, and a pull rod. The rotation of the motor drives the gears to drive the pull rod to move.

[0028] The mounting base of the tension cylinder 207 is bolted to the base frame 212. The tension rod of the tension cylinder 207 is connected to the lower frame 210. The extension and retraction of the tension cylinder 207 allows the front frame 201, swing frame 202, front clamping device 203, rear frame 213, weight sensor 204, upper frame 208, and first guide rail 206, all located on the lower frame 210, to move back and forth along the second guide rail 211 fixed to the base frame 212. The signal transmitter and receiver of the automated grating 205 are fixed to the front frame 201 and rear frame 213 respectively, and move accordingly. The automated grating 205 serves as a detection point for calculating the length of the fabric in its free state between the front clamping device 203 and the rear clamping device 214. By driving the movement through the tension cylinder 207, the high-elastic fabric at the front end of the constant elongation load force detection and calibration module 2 can be in a relaxed state, eliminating the tension generated by the high-elastic fabric during the machine operation from acting on the swing frame 202, thereby putting the swing frame 202 in a free state and eliminating the influence of the high-elastic fabric load force outside this module.

[0029] Please see Figure 5The front clamping device 203 includes a cylinder assembly 20301, a pressure beam assembly 20302, an upper pressure mold 20303, and a lower pressure mold 20304. One end of the cylinder assembly 20301 is fixed to the swing frame 202 by bolts, and the cylinder extension rod at the other end is connected to the pressure beam assembly 20302. The slot of the upper pressure mold 20303 matches and is fixed to the buckle of the pressure beam assembly 20302. The lower pressure mold 20304 is fixed to the swing frame 202. The lower pressure mold 20304 and the upper pressure mold 20303 are arranged opposite to each other. The extension and retraction of the cylinder extension rod of the cylinder assembly 20301 causes the pressure beam assembly 20302 to drive the upper pressure mold 20303 to move up and down, thereby realizing the contact, pressing and separation between the upper pressure mold 20303 and the lower pressure mold 20304. The rear clamping device 214 has the same structure as the front clamping device 203, but the rear clamping device 214 is installed on the rear frame 213, while the front clamping device 203 is fixed on the swing frame 202. The swing frame 202 is connected to the front frame 201 through bearings, so that the front clamping device 203 can swing.

[0030] The weight sensor 204 is fixed on the front frame 201 and is used to detect the calibrated constant elongation load force. When the fabric is tightened, it can drive the front clamping device 203 to swing in the direction of fabric travel, thereby causing the top ball on the swing frame 3 to press against the weight sensor 204, and the constant elongation load force of the fabric can be detected by the weight sensor 204.

[0031] In one embodiment of this utility model, please refer to Figure 3 The automatic adjustment and control load weight module 3 includes a distance sensor 301, a control motor 302, a lead screw module 303, a counterweight 304, and an angle sensor 305. The output end of the control motor 302 is connected to the lead screw module 303. The counterweight 304 is mounted on the lead screw module 303. The control motor 302 drives the lead screw module 303 to move, thereby moving the counterweight 304. The distance sensor 301 provides feedback on the real-time movement distance of the counterweight 304. Combined with the angle sensor 305 and the constant elongation load force loading roller 5, the computer controller 1 calculates the actual applied constant elongation load force using a formula. The angle sensor 305 detects the angle between the automatic adjustment and control load weight module 3 and the horizontal after the counterweight 304 moves and swings around the bearing. This angle is used to calculate the torque, ensuring that the force exerted by the constant elongation load force loading roller 5 on the fabric conforms to the instructions given by the computer controller 1 and maintains a constant force. The counterweight 304 in the automatic adjustment control load weight module 3 moves, thereby driving the constant elongation load force loading roller 5 to swing up and down, thus adjusting the constant elongation load force acting on the fabric.

[0032] The constant elongation load force is the constant elongation load force applied to the fabric by the constant elongation load force loading roller 5. It needs to be adjusted to achieve this. The constant elongation load force applied to the fabric will also be different depending on the angle of inclination (the same as the horizontal angle) of the constant elongation load force loading roller 5 when it is pressed down.

[0033] The constant elongation load force loading roller 5 is set at an angle to generate a load force that acts on the fabric. The more the constant elongation load force loading roller 5 is pressed down (the larger the angle with the horizontal), the greater the constant elongation load force applied to the fabric, and vice versa.

[0034] In one embodiment of this utility model, please refer to Figure 1 An automatic adjustment and control load weight module 3 and a constant elongation load force loading roller 5 are provided on the continuous dyeing machine 4 and corresponding to each dyeing tank. The automatic adjustment and control load weight module 3 and the constant elongation load force loading roller 5 are set together.

[0035] In one embodiment of this utility model, please refer to Figure 4 In each set of automatic adjustment control load weight module 3 and constant elongation load force loading roller 5, the automatic adjustment control load weight module 3 is fixed to the support arm on one side of the constant elongation load force loading roller 5 by bolts, and is assembled into a whole. It is also assembled on the continuous dyeing machine 4 by bearings, so that the automatic adjustment control load weight module 3 and constant elongation load force loading roller 5 swing up and down around the bearings in the continuous dyeing machine 4.

[0036] The above embodiments provide the following steps for using the online detection and control device for fabric tensile elastic recovery rate: When elastic fabrics such as elastic webbing, ropes, and ribbons made from synthetic fibers with high extensibility and high resilience are dyed in continuous dyeing machine 4, the high-elasticity fabric is clamped by the front clamping device 203 and the rear clamping device 214. Driven by the tension cylinder 207, the entire system except for the base frame 12 is moved along the second guide rail 11 towards the front frame 201, so that the high-elasticity fabric at the front end of the system is in a relaxed state, eliminating the tension generated by the high-elasticity fabric during the machine movement and thus freeing the swing frame 202, eliminating the influence of the load force of the high-elasticity fabric outside the system. Driven by the electric cylinder device 209, the front clamping device 203 and the rear clamping device 214 are reduced in size. The distance between points 14 is recorded. When the fabric hangs naturally and touches the detection point of the automated grating 205, the arch height h of the fabric in the arc state can be obtained by measuring the distance between the preset detection point of the automated grating 205 and the lower pressure die plane in the front clamping device 203, as well as the chord length L (the distance between the front and rear clamping devices) between the front clamping device 203 and the rear clamping device 214. The computer controller 1 in the system calculates the length of the fabric in the free state (the length of the fabric in the free state is the length of the fabric between the front and rear clamping devices in the state without tension) using a formula. Combined with the fabric type, the fabric stretching multiple is set to obtain the fixed elongation length of the fabric. In one embodiment of this utility model, the length of the fabric in the free state is 100mm. According to the process requirements, the fabric needs to be stretched by 1.05 times for dyeing to ensure the elastic recovery rate. Therefore, the fixed elongation length of the fabric is 100 x 1.05 = 105mm.

[0037]

[0038] In the formula, This represents the arc length, which is the length of the fabric in its free state. Indicates chord length, It indicates the height of the arch.

[0039] After receiving the constant elongation load force requirement from the computer controller 1, all the automatic adjustment and control load weight modules 3 installed on the continuous dyeing machine 4 drive the screw module 303 to move by controlling the motor 302, which in turn drives the counterweight 304 to move. The distance sensor 301 feeds back the real-time movement distance of the counterweight 304, and combined with the angle sensor 305 and the constant elongation load force loading roller 5, the actual constant elongation load force acting on the fabric is calculated, so as to realize the reasonable and accurate control of the fabric tensile elastic recovery rate in all functional modules of the continuous dyeing machine 4.

[0040]

[0041] In the formula, The torque is the actual load force applied to the fabric at a given elongation. The counterweight system, i.e., the automatic adjustment and control load weight module 3, and the fixed elongation load force loading roller 5, are the overall weight of the part that swings up and down around the bearing (the weight of the whole in its original state has been set as the reference weight during the equipment design). The length of the lever from the counterweight (304) to the point of force application. The included angle is detected by the angle sensor.

[0042] During operation, it can simultaneously detect and calibrate the constant elongation distance and constant elongation load of one or more high-elastic fabrics of the same specification. The system calculates the required constant elongation load on the fabric using the automatic adjustment control load weight module 3, which automatically adjusts the load weight of the pressure roller 5 (position as shown in the image). Figure 4 As shown, the automatic adjustment and control load weight module 3 and the constant elongation load force loading roller 5 are assembled as a whole and mounted on the continuous dyeing machine 4 through bearings at both ends. This enables the automatic adjustment and control load weight module 3 and the constant elongation load force loading roller 5 to swing up and down around the bearings, so that the force exerted on the fabric by the constant elongation load force loading roller 5 meets the requirements given by the computer controller 1, thereby keeping the fabric's tensile elastic recovery rate constant. This allows for precise control of the constant elongation load force during dyeing, thus ensuring the fabric's elastic recovery rate and the quality of dyeing.

[0043] The device provided in this embodiment is simple in principle and easy to implement. It can effectively solve the problem of inconsistent tensile elastic recovery rate after dyeing of high elastic fabrics, and at the same time, it can achieve consistent tensile elastic recovery rate after dyeing of different batches of fabrics, thereby improving the efficiency and economic benefits of fabric dyeing.

[0044] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An online detection and control device for the tensile elastic recovery rate of fabrics, characterized in that, Includes a computer controller, a constant elongation load force detection and calibration module, an automatic adjustment and control load weight module, and a constant elongation load force loading pressure roller; The computer controller is used to issue the required elongation load force and to calculate the required elongation of the fabric; The automatic adjustment control load weight module and the constant elongation load force loading roller are set together and used for swinging on the continuous dyeing machine. The magnitude of the constant elongation load force applied to the fabric by the constant elongation load force loading roller is adjusted by the swing of the automatic adjustment control load weight module and the constant elongation load force loading roller. The constant elongation load detection and calibration module is used to be installed at the output end of the continuous dyeing machine.

2. The online detection and control device for fabric tensile elastic recovery rate according to claim 1, characterized in that, The constant elongation load force detection and calibration module includes a base frame, front frame, rear frame, front clamping device, rear clamping device, weight sensor, and automatic optical grating; The front frame and the rear frame are arranged opposite each other and can be movably mounted on the base frame; The front clamping device is swung on the front frame, and the rear clamping device is fixed on the rear frame. The distance between the front clamping device and the rear clamping device is adjustable. The weight sensor is mounted on the front frame; The signal transmitter and signal receiver of the automated grating are fixed on the front frame and the rear frame, respectively.

3. The online detection and control device for fabric tensile elastic recovery rate according to claim 2, characterized in that, The constant elongation load detection and calibration module also includes an upper frame, a first guide rail, and a lower frame. The rear frame is set on the upper frame, and the upper frame is slidably set on the first guide rail. The distance between the front clamping device and the rear clamping device is adjusted by sliding the upper frame. The first guide rail is set on the lower frame, and the lower frame is slidably set on the base frame. The front frame is set on the lower frame.

4. The online detection and control device for fabric tensile elastic recovery rate according to claim 2, characterized in that, The constant elongation load detection and calibration module also includes an electric cylinder device, the pull rod of which is connected to the upper frame.

5. The online detection and control device for fabric tensile elastic recovery rate according to claim 2, characterized in that, The constant elongation load detection and calibration module also includes a tension cylinder, the output end of which is connected to the lower frame.

6. The online detection and control device for fabric tensile elastic recovery rate according to claim 2, characterized in that, Both the front clamping device and the rear clamping device include a cylinder assembly, a pressure beam assembly, an upper pressure die, and a lower pressure die. The output end of the cylinder assembly is connected to the pressure beam assembly. The upper pressure die and the lower pressure die are arranged opposite to each other, and the upper pressure die is connected to the pressure beam assembly. The cylinder assembly drives the clamping and separation of the pressure die and the lower pressure die.

7. The online detection and control device for fabric tensile elastic recovery rate according to claim 6, characterized in that, The upper mold and the pressure beam assembly are connected by a slot and snap-fit ​​mechanism.

8. The online detection and control device for fabric tensile elastic recovery rate according to claim 7, characterized in that, The upper mold is provided with a slot, and the pressure beam assembly is provided with a buckle that cooperates with the slot.

9. The online detection and control device for fabric tensile elastic recovery rate according to any one of claims 1-8, characterized in that, The automatic adjustment control load weight module is connected to one side of the constant elongation load force loading roller to form a whole, and the whole is set on the continuous dyeing machine through bearings.

10. The online detection and control device for fabric tensile elastic recovery rate according to claim 9, characterized in that, The automatic adjustment and control load weight module includes a control motor, a lead screw module, a counterweight, a distance sensor, and an angle sensor. The lead screw module is connected to the control motor, and the counterweight is movably mounted on the lead screw module. The distance sensor is used to detect the real-time movement distance of the counterweight, and the angle sensor is used to detect the angle between the automatic adjustment and control load weight module and the horizontal after the constant elongation load force loading roller swings after the counterweight moves.

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