Leather dry method line release paper tension control device

Abstract

The utility model discloses a tension control device for leather dry-method line release paper, which is characterized by comprising a rack, a speed reducing motor is mounted on one side of the rack, a rubber roller, a fixed shaft guide roller and a tension control mechanism are sequentially mounted on the rack from top to bottom, the rubber roller is driven by the speed reducing motor to rotate, and the fixed shaft guide roller is driven by the tension control mechanism to rotate. The tension control mechanism comprises a rotating shaft guide roller installed on the rack, a first force arm and a second force arm are installed at the two ends of the rotating shaft guide roller, a tension floating roller is installed on the second force arm, and the tail end of the first force arm is connected with a spring seat through a spring and detected through a sensor. According to the utility model, constant tension can be set and maintained, the tension of the release paper can be instantly adjusted, the whole line of release paper can be maintained to fluctuate within a certain tension range, and large tension fluctuation can be effectively avoided.

Description

Technical Field

[0001] This utility model belongs to the technical field of roller coating equipment, specifically relating to a release paper force control device for leather dry coating lines. Background Technology

[0002] The surface coating effect of release paper in dry-process production lines is greatly influenced by factors such as the flatness, presence of damage, and surface cleanliness of the release paper. During continuous operation, the release paper bears a certain tension and undergoes repeated high-temperature drying and cooling in an oven after roller coating, while maintaining a flat state to prevent breakage and deformation. Changes in the winding and unwinding diameters, frame vibrations, and the working environment directly affect the surface tension of the release paper. These tension variations significantly impact the drying and cooling quality of the surface coating, as well as the final product's feel, physical properties, production efficiency, production costs, and the number of times the release paper can be used. Summary of the Invention

[0003] The purpose of this invention is to propose a release paper force control device for leather dry-process lines, which can maintain a constant tension setting and adjust the release paper force instantaneously, ensuring that the release paper of the entire line remains within a certain tension range and effectively avoiding large tension fluctuations.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A force control device for release paper on a leather dry-process line is characterized by comprising a frame, a geared motor mounted on one side of the frame, and a rubber roller, a fixed shaft guide roller, and a tension control mechanism sequentially mounted on the frame from top to bottom. The rubber roller is driven to rotate by the geared motor. The tension control mechanism includes a rotating shaft guide roller mounted on the frame, with a first force arm and a second force arm mounted at both ends of the rotating shaft guide roller. A tension floating roller is mounted on the second force arm, and the end of the first force arm is connected to a spring seat via a spring. The change in the position of the first force arm is detected by a sensor.

[0006] Furthermore, the frame is composed of two side wall panels, and the two ends of the rubber roller are fixed to the two side wall panels through bearing seats. One end of the rubber roller is connected to a reduction motor, which enables rotation.

[0007] Furthermore, the two ends of the fixed shaft guide roller are fixed to the two side wall panels by bolts.

[0008] Furthermore, the two ends of the rotating shaft guide roller are fixed to the wall panel by bearing seats, and the first lever arm and the second lever arm are both installed on the shafts at both ends of the rotating shaft guide roller, and are locked tightly by expansion sleeves after positioning.

[0009] Furthermore, the two ends of the tension floating roller are fixed to the second lever arm by bolts.

[0010] Furthermore, spring seats are connected to the ends of the first lever arm via springs on both sides. The spring seats are fixed to the wall panel with bolts, and the sensor is mounted on the wall panel via a sensor seat.

[0011] Furthermore, the sensor transmits the acquired signal to the controller, which compares it with the set release paper force and controls the speed of the reduction motor in real time.

[0012] The above technical solution can achieve the following beneficial effects:

[0013] This invention can maintain a constant tension setting and adjust the release paper force instantaneously, ensuring that the release paper of the entire line remains within a certain tension range and effectively avoiding large tension fluctuations.

[0014] This invention uses springs at both ends of the first lever arm to buffer the swing of the first lever arm, preventing large changes in the swing of the first lever arm from causing distortion of the sensor's data on the swing state of the first lever arm, which would affect the speed of the subsequent motor.

[0015] The sensor uses a photoelectric sensor, which can detect the range of the first lever arm swing and transmit the signal to the controller. The controller compares the signal with the set release paper force and controls the speed of the reduction motor in real time. Attached Figure Description

[0016] Figure 1 This is a 3D view of the release paper force control device.

[0017] Figure 2 This is a cross-sectional diagram of the release paper force control device.

[0018] Figure 3 This is a partial structural diagram of the release paper force control device.

[0019] In the picture:

[0020] In the diagram: 1. Release paper; 2. Fixed shaft guide roller; 3. Gear motor; 4. Glue roller; 5. Rotating shaft guide roller; 6. Second lever arm; 7. Tension floating roller; 8. Spring seat; 9. Spring; 10. Sensor; 11. Sensor seat; 12. First lever arm; 13. Wall panel; 14. Bearing seat; 15. Expansion sleeve. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings:

[0022] like Figure 1-3As shown, a release paper force control device for a leather dry-process line includes a frame consisting of two side wall panels 13. A geared motor 3 is installed on one side of the frame. From top to bottom, the frame is equipped with a rubber roller 4, a fixed shaft guide roller 2, and a tension control mechanism. The rubber roller 4 is fixed to the side wall panels at both ends by bearing seats, and one end of the roller is connected to the geared motor for rotation. The fixed shaft guide roller 2 is fixed to the side wall panels at both ends by bolts. The tension control mechanism includes a rotating shaft guide roller 5 mounted on the frame. A first lever arm 12 and a second lever arm 6 are installed at both ends of the rotating shaft guide roller. A tension floating roller 7 is installed on the second lever arm 6. The end of the first lever arm is connected to a spring seat 8 via a spring 9. A sensor detects changes in the position of the first lever arm and transmits the received signal to a controller. The controller compares this signal with the set release paper force and controls the speed of the geared motor in real time. It should be noted that the sensor receiving the signal and transmitting it to the controller, and the controller controlling the speed of the geared motor, are existing technologies and will not be elaborated further.

[0023] Based on the above embodiments: the two ends of the rotating shaft guide roller are fixed to the wall plate by bearing seats 14, the first lever arm and the second lever arm are both installed on the shafts at both ends of the rotating shaft guide roller, and after positioning, they are locked and secured by expansion sleeves 15; the two ends of the tension floating roller 7 are fixed to the second lever arm by bolts.

[0024] The ends of the first lever arm are connected to spring seats 8 by springs 9 on both sides. The spring seats are fixed to the wall panel by bolts. The sensor 10 is mounted on the wall panel by sensor seat 11. The sensor seat 11 can be adjusted according to the spring position. However, the principle is that the sensor needs to be installed on both sides of the end of the first lever arm so as to accurately detect the left and right swing position changes of the end of the first lever arm. The sensor can be a light sensor.

[0025] Figure 2 As shown, the release paper is driven to rotate by the geared motor 3, and passes through the fixed shaft guide roller 2, the glue roller 4 and the rotating shaft guide roller 5 in sequence, and finally comes out from the tension floating roller 7.

[0026] Specifically, the tension floating roller 7 can be pulled up according to the set tension to ensure the release paper surface is flat and wrinkle-free. The second locking arm 6 is then locked onto the rotating shaft guide roller using an expansion sleeve. Simultaneously, the first arm is positioned vertically downwards, and the positions of the spring seats on both sides of the first arm are adjusted to bring the springs to their natural state. Finally, the distance between the sensor on the sensor seat and the first arm is adjusted according to the allowable tension fluctuation range of the release paper.

[0027] When the release paper tension increases, the tension floating roller 7 moves to the left and lifts, causing the first lever arm to also move to the left. At this time, the first lever arm compresses the left spring while stretching the right spring, working together to buffer the leftward movement of the first lever arm and prevent large tension changes. Simultaneously, the first lever arm moves to the left and approaches the left sensor. The tension of the release paper is transmitted to the controller through the left sensor. The controller compares this with the release paper tension set in the control system and controls the speed reduction motor to slow down and the release paper feeding amount to increase, mitigating the impact of increased release paper tension until the tension returns to the set value range, thus maintaining the uniformity and consistency of the release paper.

[0028] Similarly, when the release paper force decreases, the tension floating roller 7 will move to the right, causing the first lever arm to also move to the right. At this time, the first lever arm will stretch the left spring while compressing the right spring, jointly buffering the rightward movement of the first lever arm and preventing large changes in tension. Simultaneously, as the first lever arm moves to the right and approaches the right sensor, the tension of the release paper is transmitted to the controller through the right sensor. The controller compares this to the release paper force set in the control system and controls the speed of the reduction motor to increase, reducing the release paper feed amount to mitigate the impact of the decreased release paper force, until the tension returns to the set value range to maintain the uniformity and consistency of the release paper.

[0029] The above descriptions are all preferred embodiments of this utility model. For those skilled in the art, any modifications to this utility model in various equivalent forms without departing from the principle of this utility model shall fall within the protection scope of the appended claims.

Claims

1. A leather dry process thread separation paper tension control device, characterized by: The machine frame is composed of two side wall plates, the rubber roller is fixed on the two side wall plates through bearing seats at both ends, and the rubber roller is connected with the speed reducer at one end to rotate through the speed reducer.

2. A leather dry thread release paper tension control device according to claim 1, characterized in that: The fixed shaft guide roller is fixed on the two side wall plates through bolts at both ends.

3. A leather dry thread release paper tension control device according to claim 1, characterized in that: The rotating shaft guide roller is fixed on the wall plate through bearing seats at both ends, and the first force arm and the second force arm are fixed on the shafts at both ends of the rotating shaft guide roller and are locked and fastened after positioning through the expansion sleeve.

4. A leather dry thread release paper tension control device according to claim 1, characterized in that: The tension floating roller is fixed on the second force arm through bolts at both ends.

5. A leather dry thread release paper tension control device according to claim 1 or 4, characterized in that: The ends of the first force arm are connected with spring seats through springs at both sides, the spring seats are fixed on the wall plate through bolts, and the sensor is installed on the wall plate through a sensor seat.

6. A leather dry thread release paper tension control device according to claim 1, characterized in that: The sensor transmits the obtained signal to the controller, the controller compares the set release paper tension, and controls the speed of the speed reducer in real time.

7. A leather dry thread release paper tension control device according to claim 1 or 6, characterized in that: ​

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