Rolling constant tension improvement device of dry-method small-scale test machine

Abstract

The utility model discloses an improved winding constant tension device of a dry-method small-scale test machine, which relates to the synthetic leather production technology and comprises a front platform of the dry-method small-scale test machine, a plurality of groups of unwinding wheels are arranged on the front platform of the dry-method small-scale test machine, a winding wheel is arranged at the foremost end of the front platform of the dry-method small-scale test machine, and a winding wheel support extending forwards is fixedly mounted on one side of the front platform of the dry-method small-scale test machine. A rotating shaft is transversely and fixedly installed at the front end of a winding wheel support, a winding wheel is rotationally installed on the rotating shaft in a sleeved mode, one side of the winding wheel is connected with a motor, a pneumatic friction plate is fixedly installed at the end, close to the winding wheel support, of the winding wheel, the pneumatic friction plate is tightly attached to the winding wheel support, and a winding tension electromagnetic valve is installed in the pneumatic friction plate. Compared with the prior art, the device has the advantages that the winding quality is improved, the operation safety of equipment is ensured, and different production requirements are met.

Description

TECHNICAL FIELD

[0001] The utility model relates to synthetic leather production technology, concretely is dry method small test machine winding constant tension improvement device. BACKGROUND

[0002] In the field of synthetic leather production technology development, dry method small test machine occupies the vital position. As the key equipment of the development department, it is frequently used in daily research and development work, and provides strong support for the continuous optimization and innovation of synthetic leather production process. However, the dry method small test machine designed by the original factory has exposed some obvious problems in the actual operation process. When the operator stops the operation, the winding and unwinding tension will be lost instantaneously. This situation makes the release paper and other materials unable to maintain a stable tension state in the production process. The process parameters of the release paper are not fully considered in the original design, which further aggravates the severity of the problem. Due to the loss of tension and the mismatch of process parameters, the leather surface often appears creases. These creases not only affect the appearance quality of synthetic leather, but also reduce the market competitiveness of products. At the same time, the frequent paper breakage phenomenon has brought great trouble to production. Paper breakage not only causes production interruption, affects production efficiency, but also increases the waste of raw materials and production cost.

[0003] In summary, the dry method small test machine designed by the original factory has the defects in tension control and process parameter consideration, which has a great impact on the production and development of synthetic leather. In order to solve these problems and improve production efficiency and product quality, it is urgent to improve the dry method small test machine. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing dry method small test machine winding constant tension improvement device, through being equipped with winding stop automatic tension maintaining system to the phenomenon, winding tension solenoid valve keeps energized state while small test machine stops running when operator stops, pneumatic friction plate gets gas and generates friction force, guarantees that winding maintains tension under the condition of stopping, makes paper surface and leather surface keep flat, to solve above -mentioned problem.

[0005] In order to achieve the above object, the utility model provides the following technical scheme:

[0006] The dry process small test machine winding constant tension improvement device comprises a dry process small test machine front platform. The dry process small test machine front platform serves as the basic structure of the whole device and provides installation and support for other components. A plurality of unwinding wheels and a winding wheel at the front end thereof are arranged on the platform to enable the winding of paper. The two work together to realize the winding process of the paper. The winding wheel support is fixedly installed on one side of the dry process small test machine front platform. The winding wheel support serves to stably support the winding wheel and ensure that the winding wheel remains stable during the working process. The winding wheel is rotatably installed through a rotating shaft arranged transversely at the front end of the winding wheel support. The rotating shaft enables the winding wheel to rotate smoothly, thereby realizing efficient winding of the paper. The winding wheel is directly driven by the motor installed on one side thereof. The motor provides power for the winding wheel to enable the rotation and winding operation.

[0007] The pneumatic friction plate is fixedly installed at one end of the winding wheel. The pneumatic friction plate serves to fit the winding wheel support to generate friction. By adjusting the size of the friction, the winding tension of the winding wheel can be effectively controlled, so that the paper always maintains a constant tension during the winding process. The adjustable compression device is installed on the winding wheel support to change the size of the friction between the pneumatic friction plate and the winding wheel support, thereby realizing fine adjustment of the winding tension. The adjustable compression device can accurately adjust the size of the friction according to different paper materials and winding requirements. By changing the friction, fine control of the winding tension is realized to meet different winding requirements. The pneumatic friction plate is additionally provided with a winding tension electromagnetic valve. The winding tension electromagnetic valve keeps the pneumatic friction plate in a short-time power-on state after the operator stops the machine. The purpose of this design is to keep the motor in a short-time power-on state at the moment of stopping, so that the pneumatic friction plate can be inflated to generate friction, thereby preventing the paper from suddenly relaxing, and ensuring the quality and stability of the winding.

[0008] The motor is additionally provided with a stop relay. The stop relay can quickly cut off the power supply of the motor when the motor needs to be stopped, thereby ensuring the safe stop of the equipment.

[0009] The dry process small test machine front platform is provided with a control platform on one side. The control platform is the control center of the whole device and is used for monitoring and adjusting various parameters of the equipment. The dry process small test machine stop button on the control platform adopts a self-locking button and is interlocked with the stop relay. The self-locking button can ensure that the button remains in the locked state after the stop button is pressed, thereby preventing misoperation. The interlocking with the stop relay can improve the safety and reliability of the equipment and ensure that the stop relay can accurately cut off the power supply of the motor when the stop button is pressed.

[0010] The tension sensor is arranged between the winding wheel and the unwinding wheel, real-time monitoring of the tension of the paper, and the tension data is transmitted to the control platform.

[0011] The motor is equipped with a speed controller, and the operator can manually adjust the speed of the motor on the control platform according to different paper materials and winding requirements, so as to obtain the best winding constant tension effect.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] The pneumatic friction plate is matched with the winding wheel support to generate friction force, and the adjustable pressing device is used to adjust the friction force, so that the winding tension can be finely adjusted, the constant tension of the paper during winding can be ensured, and the situations of paper relaxation or over-tightening can be avoided, thereby greatly improving the winding quality.

[0014] The pneumatic friction plate adds a winding tension electromagnetic valve, which keeps the motor in a short power-on state after the operator stops, thereby generating friction force by inflation, preventing safety problems caused by sudden relaxation of the paper.

[0015] The motor is equipped with a speed controller, and the operator can manually adjust the speed of the motor on the control platform according to different paper materials and winding requirements, so as to obtain the best winding constant tension effect. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 It is a perspective view of the winding constant tension improvement device of the dry method small test machine.

[0017] Fig. 2 It is the perspective view of the improved device for constant tension winding of the dry method small test machine,

[0018] In the figure: 1, the front platform of the dry method small test machine; 11, the unwinding wheel; 12, the winding wheel support; 13, the rotating shaft; 14, the adjustable compression device; 2, the winding wheel; 21, the pneumatic friction plate; 3, the motor; 4, the control platform. DETAILED DESCRIPTION

[0019] The technical scheme in the embodiments of the utility model will be described completely in combination with the drawings in the embodiments of the utility model.

[0020] As Figs. 1-2 shown, the improved device for constant tension winding of the dry method small test machine, comprising the front platform of the dry method small test machine 1, a plurality of unwinding wheels 11 are arranged on the front platform of the dry method small test machine 1, and the winding wheel 2 is arranged at the most front end, characterized in that the front platform of the dry method small test machine 1 is fixedly installed with the winding wheel support 12 extending forward on one side, the rotating shaft 13 is fixedly installed transversely on the front end of the winding wheel support 12, the winding wheel 2 is rotatably installed in the rotating shaft 13, the winding wheel 2 is drivenly connected with the motor 3 on one side, the pneumatic friction plate 21 is fixedly installed on the winding wheel support 12 end close to the winding wheel 2, the pneumatic friction plate 21 is closely attached to the winding wheel support 12, and the winding tension solenoid valve is installed inside the pneumatic friction plate 21.

[0021] The motor 3 is connected with the stop relay.

[0022] The front platform of the dry method small test machine 1 is installed with the control platform 4 on one side, the dry method small test machine stop button on the control platform 4 is a self-locking button, and is interlocked with the stop relay.

[0023] The tension sensor is arranged between the winding wheel 2 and the unwinding wheel 11, the tension of paper is monitored in real time, and the tension data is transmitted to the control platform 4, when the tension exceeds the preset range, the control platform 4 adjusts the rotating speed of the motor 3, so as to maintain the constant tension winding.

[0024] The adjustable compression device 14 is installed on the winding wheel support 12, the friction between the pneumatic friction plate 21 and the winding wheel support 12 is changed by adjusting the force of the adjustable compression device 14, so as to realize the fine adjustment of the winding tension.

[0025] The motor 3 is provided with a speed controller, and the operating personnel can manually adjust the rotating speed of the motor 3 on the control platform 4 according to different paper materials and winding requirements, so as to obtain the best winding constant tension effect.

[0026] First, the array of the unwinding wheel 11 and the winding wheel 2 at the front end are set on the dry test machine front platform 1, which is used for the winding operation of the paper. The winding wheel support 12 is fixedly installed on one side of the dry test machine front platform 1, and the winding wheel 2 is rotatably installed through the rotating shaft 13 transversely arranged at the front end of the winding wheel support 12. The winding wheel 2 is directly driven by the motor 3 installed on one side thereof.

[0027] In order to realize constant tension winding, various measures are taken. On the one hand, the pneumatic friction plate 21 is additionally provided with a winding tension electromagnetic valve, which can keep the motor 3 in a short power-on state after the operator stops the machine, so as to generate friction by inflation and maintain a certain winding tension at the moment of stopping to prevent the paper from suddenly relaxing. The pneumatic friction plate 21 is in close contact with the winding wheel support 12 to generate friction, and by installing the adjustable pressing device 14 on the winding wheel support 12, the friction between the pneumatic friction plate 21 and the winding wheel support 12 can be adjusted by adjusting the adjustable pressing device 14, so as to realize fine adjustment of the winding tension.

[0028] At the same time, the tension sensor is arranged between the winding wheel 2 and the unwinding wheel 11 to monitor the tension of the paper in real time, and the tension data is transmitted to the control platform 4. When the tension exceeds the preset range, the control platform 4 can automatically adjust the rotating speed of the motor 3 to maintain constant tension winding. In addition, the dry test machine stop button on the control platform 4 is a self-locking button, and is interlocked with the stop relay additionally provided on the motor 3 to improve the operation safety. Moreover, the motor 3 is also equipped with a speed controller, and the operator can manually adjust the rotating speed of the motor 3 on the control platform 4 according to different paper materials and winding requirements to obtain the best winding constant tension effect.

Claims

1. A dry-process pilot test machine with constant tension winding improvement device, comprising a front platform (1) of the dry-process pilot test machine, wherein an array of unwinding rollers (11) is provided on the front platform (1), and a winding roller (2) is provided at the foremost end, characterized in that, A forward-extending take-up roller bracket (12) is fixedly installed on one side of the front platform (1) of the dry process pilot machine. A rotating shaft (13) is fixedly installed laterally at the front end of the take-up roller bracket (12). The rotating shaft (13) is fitted with and rotates the take-up roller (2). A motor (3) is connected to one side of the take-up roller (2). A pneumatic friction plate (21) is fixedly installed on one end of the take-up roller (2) near the take-up roller bracket (12). The pneumatic friction plate (21) is tightly fitted with the take-up roller bracket (12). A take-up tension solenoid valve is installed inside the pneumatic friction plate (21).

2. The improved dry-process small-scale pilot winding constant tension device according to claim 1, characterized in that, The motor (3) is connected to a stop relay for power supply.

3. The improved dry-process small-scale pilot winding constant tension device according to claim 1, characterized in that, A control platform (4) is installed on one side of the front platform (1) of the dry process small test machine. The stop button of the dry process small test machine on the control platform (4) is a self-locking button and is interlocked with the stop relay.

4. The improved dry-process small-scale pilot winding constant tension device according to claim 1, characterized in that, A tension sensor is installed between the winding wheel (2) and the unwinding wheel (11) to monitor the tension of the paper in real time and transmit the tension data to the control platform (4). When the tension exceeds the preset range, the control platform (4) adjusts the speed of the motor (3) to maintain constant tension winding.

5. The improved dry-process small-scale pilot winding constant tension device according to claim 1, characterized in that, An adjustable clamping device (14) is installed on the winding wheel bracket (12). By adjusting the force of the adjustable clamping device (14), the friction between the pneumatic friction plate (21) and the winding wheel bracket (12) can be changed, thereby achieving fine adjustment of the winding tension.

6. The improved dry-process small-scale pilot winding constant tension device according to claim 1, characterized in that, The motor (3) is equipped with a speed controller. The operator can manually adjust the speed of the motor (3) on the control platform (4) according to different paper materials and winding requirements.

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