Membrane tension detector

Abstract

The utility model discloses a film material tension detection machine which comprises a machine frame, and an unwinding mechanism, a front belt pressing mechanism, a tension adjusting mechanism, a distance measuring mechanism, a driving mechanism, a rear belt pressing mechanism and a winding mechanism are sequentially arranged on the machine frame in the belt conveying direction of a film material. A film material unwound from the unwinding mechanism sequentially passes through the front belt pressing mechanism, the tension adjusting mechanism, the distance measuring mechanism, the driving mechanism and the rear belt pressing mechanism and then is wound in the winding mechanism, and the front belt pressing mechanism and the rear belt pressing mechanism are used for pressing the film material when the distance measuring mechanism detects the film material. The distance measuring mechanism is used for detecting the difference value of the wave crests and the wave troughs of the longitudinal lines of the membrane material under certain tension. According to the membrane material tension detection machine provided by the utility model, when the membrane material tension is detected, the winding and unwinding tension can be separated, so that the winding and unwinding tension is prevented from influencing the tension precision of the membrane material controlled by the tension adjusting mechanism, and the accuracy of a tension detection result is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of tension detection equipment, in particular to a film material tension detection machine. Background Art

[0002] A tension tester is a device used to measure the mechanical properties of materials under tension or tension. It is widely used in various material production and processing processes to ensure that the material can maintain stable performance and quality when subjected to tensile force. The main function of a tension tester is to evaluate the mechanical properties and stability of a material by measuring the change in tension during the stretching process. It can provide information on important parameters such as the difference between the crest and trough of the longitudinal grain of the material, which are crucial for material selection, design, production and quality control.

[0003] The Chinese utility model patent with patent number CN201721173195.5 discloses a battery diaphragm tension detection device, including a scale measuring tool and a reel, a reel, a guide roller and a laser level arranged in parallel with each other, the guide roller includes a first guide roller and a second guide roller, the first guide roller and the second guide roller are in the same horizontal plane, the battery diaphragm is transmitted from the unwinding shaft and successively bypasses the first guide roller, and the second guide roller is reeled up by the reel, and the scale measuring tool is arranged between the first guide roller and the second guide roller; when the battery diaphragm is transmitted from the unwinding shaft and successively bypasses the first guide roller and the second guide roller, the wave edge value and the uneven tension floating value of the battery diaphragm can be accurately measured by the scale measuring tool arranged there; in addition, the wave edge value and the uneven tension floating value of the battery diaphragm can also be measured by the laser level.

[0004] However, the above-mentioned tension detection device cannot isolate the tension of unwinding and winding when detecting the film material, which will affect the tension accuracy of controlling the film material and cause inaccurate tension detection results. Utility Model Content

[0005] In order to overcome the problem in the prior art that the tension detection device cannot separate the tension of unwinding and winding when detecting the film material, resulting in inaccurate film material tension measurement results, the utility model provides a film material tension detection machine.

[0006] The technical solution of the utility model is as follows:

[0007] A film material tension detection machine comprises a frame, on which an unwinding mechanism, a front belt pressing mechanism, a tension adjustment mechanism, a distance measuring mechanism, a driving mechanism, a rear belt pressing mechanism and a winding mechanism are sequentially arranged along the film material running direction. The film material unwound from the unwinding mechanism passes through the front belt pressing mechanism, the tension adjustment mechanism, the distance measuring mechanism, the driving mechanism and the rear belt pressing mechanism in sequence, and is then wound up in the winding mechanism. The front belt pressing mechanism and the rear belt pressing mechanism are used to press the film material when the distance measuring mechanism is detecting. The distance measuring mechanism is used to detect the difference between the crest and the trough of the longitudinal grain of the film material under a certain tension.

[0008] As a preferred embodiment of the film material tension detection machine of the utility model, the tension adjustment mechanism is a rocker structure, including a rocker roller bracket, a tension roller arranged at one end of the rocker roller bracket, a rotating roller arranged at the other end of the rocker roller bracket, and a telescopic cylinder, wherein the telescopic cylinder is arranged on one side of the rocker roller bracket and is drivingly connected to the rocker roller bracket, and the film material passes through the tension roller.

[0009] As a preferred embodiment of the film material tension detection machine of the utility model, the tension adjustment mechanism is a rocker structure, including a rocker roller bracket, a tension roller arranged at one end of the rocker roller bracket, a rotating roller arranged at the other end of the rocker roller bracket, and a rotating cylinder, wherein the rotating cylinder is arranged at the end of the rotating roller and is drivingly connected to the rotating roller, and the film material passes through the tension roller.

[0010] As a preferred embodiment of the film material tension detection machine of the utility model, the distance measuring mechanism includes a laser distance measuring sensor and a translation module, the translation module is fixed on the frame, the driving end of the translation module is connected to the laser distance measuring sensor and drives the laser distance measuring sensor to move along the width direction of the film material, and the detection end of the laser distance measuring sensor is facing the film material.

[0011] As a preferred embodiment of the film material tension detection machine of the utility model, the driving mechanism includes a main driving roller with a fixed position and a main driving pressure roller that can press or loosen the main driving roller, and the film material passes between the main driving roller and the main driving pressure roller.

[0012] As a preferred embodiment of the film material tension detection machine of the utility model, a flattening roller is arranged between the unwinding mechanism and the front belt pressing mechanism, and the film material unwound from the unwinding mechanism passes through the flattening roller and the front belt pressing mechanism in sequence.

[0013] As a preferred embodiment of the film material tension detection machine of the utility model, a first guide roller is arranged between the unwinding mechanism and the flattening roller, and a second guide roller is arranged between the flattening roller and the front belt pressing mechanism. The film material unwound from the unwinding mechanism passes through the first guide roller, the flattening roller, the second guide roller, and the front belt pressing mechanism in sequence.

[0014] As a preferred embodiment of the film material tension detection machine of the utility model, a third guide roller is arranged between the front pressure belt mechanism and the tension adjustment mechanism, and a fourth guide roller is arranged between the tension adjustment mechanism and the distance measuring mechanism. The film material passes through the third guide roller, the tension adjustment mechanism, the fourth guide roller, and the distance measuring mechanism in sequence.

[0015] As a preferred embodiment of the film material tension detection machine of the utility model, a fifth guide roller is arranged between the rear belt pressing mechanism and the winding mechanism, and the film material passes through the rear belt pressing mechanism and the fifth guide roller in sequence and is wound in the winding mechanism.

[0016] As a preferred embodiment of the film material tension detection machine of the utility model, a tension detection roller is arranged between the distance measuring mechanism and the driving mechanism, and the film material passing through the distance measuring mechanism passes through the tension detection roller and the driving mechanism in sequence.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] The utility model provides a film material tension detection machine, which sequentially arranges an unwinding mechanism, a front belt pressing mechanism, a tension adjusting mechanism, a distance measuring mechanism, a driving mechanism, a rear belt pressing mechanism, and a winding mechanism along the film material running direction, and is divided into two stages of "travel mode" and "distance measuring mode" during operation. When detecting the film material tension, the front belt pressing mechanism and the rear belt pressing mechanism are controlled to start, and the unwinding and winding tension can be isolated, so as to avoid the unwinding and winding tension affecting the tension accuracy of the tension adjusting mechanism in controlling the film material, so as to ensure the accuracy of the tension detection result. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 This is a schematic diagram of the structure of an embodiment of the utility model;

[0021] Figure 2This is a structural schematic diagram of a tension adjustment mechanism in one embodiment of the utility model;

[0022] Figure 3 This is a structural schematic diagram of a tension adjustment mechanism in another embodiment of the utility model;

[0023] Figure 4 Schematic diagram of the structure of the distance measuring mechanism in one embodiment of the utility model.

[0024] In the figure,

[0025] 1. Frame; 2. Unwinding mechanism; 3. Front belt pressing mechanism; 4. Tension adjusting mechanism; 401. Swinging roller bracket; 402. Tension roller; 403. Rotating roller; 404. Telescopic cylinder; 5. Distance measuring mechanism; 501. Laser distance measuring sensor; 502. Translation module; 6. Driving mechanism; 601. Main driving roller; 602. Main driving pressure roller; 7. Rear belt pressing mechanism; 8. Winding mechanism; 9. Flattening roller; 10. First guide roller; 11. Second guide roller; 12. Third guide roller; 13. Fourth guide roller; 14. Fifth guide roller; 15. Tension detection roller; 100. Film material. DETAILED DESCRIPTION

[0026] In order to make the technical problems, technical solutions and beneficial effects to be solved by the utility model more clearly understood, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. At the same time, it is stated that the embodiments described below are only used to explain the utility model and are not used to limit the utility model.

[0027] It should be noted that the terms "install", "set", "connect", "fix" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated one; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. The indicated orientation or position relationship is based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the application product is usually placed when in use, or the orientation or position relationship commonly understood by those skilled in the art, or the orientation or position relationship in which the application product is usually placed when in use. It is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device 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 on the present application.

[0028] See also Figure 1The present embodiment provides a film material tension detection machine, including a frame 1, on which an unwinding mechanism 2, a front belt pressing mechanism 3, a tension adjustment mechanism 4, a distance measurement mechanism 5, a driving mechanism 6, a rear belt pressing mechanism 7, and a winding mechanism 8 are sequentially arranged along the film material 100 running direction. During operation, the film material 100 unwound from the unwinding mechanism 2 passes through the front belt pressing mechanism 3, the tension adjustment mechanism 4, the distance measurement mechanism 5, the driving mechanism 6, and the rear belt pressing mechanism 7 in sequence, and is wound in the winding mechanism 8. Among them, the unwinding mechanism 2 is used to unwind the film material 100; the front belt pressing mechanism 3 and the rear belt pressing mechanism 7 are used to press the film material 100 when the distance measurement mechanism 5 detects; the tension adjustment mechanism 4 is used to adjust the tension of the film material 100; the distance measurement mechanism 5 is used to detect the difference between the crest and the trough of the longitudinal grain of the film material 100 under a certain tension by using a laser to measure the distance difference; the driving mechanism 6 is used to provide power for the movement of the film material 100; and the winding mechanism 8 is used to recycle the film material 100.

[0029] The film material tension detection machine of this embodiment is divided into two stages when working: "tape transport mode" and "distance measurement mode".

[0030] In the tape transport mode, the front tape pressing mechanism 3 and the rear tape pressing mechanism 7 are in the open state and do not press the passing film material 100. The unwinding motor of the unwinding mechanism 2 and the winding motor of the winding mechanism 8 are started, and the main driving pressure roller 602 of the driving mechanism 6 is pressed on the main driving roller 601 to isolate the tension of unwinding and winding, and the motor driving the main driving roller 601 is started, and the tension adjustment mechanism 4 and the distance measuring mechanism 5 are not started.

[0031] In the distance measurement mode, the unwinding motor of the unwinding mechanism 2 and the winding motor of the winding mechanism 8 are not started, the main driving pressure roller 602 of the driving mechanism 6 is away from the main driving roller 601, the motor driving the main driving roller 601 is not started, the front pressure belt mechanism 3 and the rear pressure belt mechanism 7 are in a closed state, pressing the passing film material 100 to isolate the tension of unwinding and winding, the tension adjustment mechanism 4 is started to tighten the film material 100 between the front pressure belt mechanism 3 and the rear pressure belt mechanism 7 according to the set tension, the distance measurement mechanism 5 is started to collect the data of the longitudinal grain peaks and troughs of the section of film material 100, and the difference between the longitudinal grain peaks and troughs is obtained after calculation. According to the difference between the longitudinal grain peaks and troughs, the tension of the film material 100 in the width direction can be obtained, thereby providing an important reference basis for the subsequent production process, which is helpful to optimize the production process and improve product quality.

[0032] The film tension detection machine of the present embodiment sequentially arranges an unwinding mechanism 2, a front belt pressing mechanism 3, a tension adjusting mechanism 4, a distance measuring mechanism 5, a driving mechanism 6, a rear belt pressing mechanism 7, and a winding mechanism 8 along the traveling direction of the film material 100. When detecting the tension of the film material 100, the front belt pressing mechanism 3 and the rear belt pressing mechanism 7 are controlled to start, so that the unwinding and winding tension can be isolated, so as to prevent the unwinding and winding tension from affecting the tension accuracy of the film material 100 controlled by the tension adjusting mechanism 4, so as to ensure the accuracy of the tension detection result.

[0033] See also Figure 2 In one embodiment, the tension adjustment mechanism 4 is a swing rod structure, including a swing roller bracket 401, a tension roller 402 arranged at one end of the swing roller bracket 401, a rotating roller 403 arranged at the other end of the swing roller bracket 401, and a telescopic cylinder 404, wherein the telescopic cylinder 404 is arranged at one side of the swing roller bracket 401 and is drivingly connected to the swing roller bracket 401, and the film material 100 passes through the tension roller 402. In the distance measurement mode, the telescopic cylinder 404 controls the swing roller bracket 401 to rotate along the rotating roller 403 according to the set air pressure, thereby tightening the film material 100 through the tension roller 402, so that the film material 100 is tightened according to the set tension.

[0034] See also Figure 3 In another embodiment, the tension adjustment mechanism 4 is a swing rod structure, including a swing roller bracket 401, a tension roller 402 arranged at one end of the swing roller bracket 401, a rotating roller 403 arranged at the other end of the swing roller bracket 401, and a rotating cylinder, the rotating cylinder is arranged at the end of the rotating roller 403 and is drivingly connected to the rotating roller 403, and the film 100 passes through the tension roller 402. In the distance measurement mode, the rotating cylinder controls the rotation of the rotating roller 403 according to the set air pressure, and then drives the swing roller bracket 401 to rotate through the rotating roller 403, so that the film 100 is tightened by the tension roller 402, so that the film 100 is tightened according to the set tension.

[0035] See also Figure 4 In one embodiment, the distance measuring mechanism 5 includes a laser distance measuring sensor 501 and a translation module 502. The translation module 502 is fixed on the frame 1. The driving end of the translation module 502 is connected to the laser distance measuring sensor 501 and drives the laser distance measuring sensor 501 to move along the width direction of the film material 100. The detection end of the laser distance measuring sensor 501 faces the film material 100. When measuring the distance, the laser distance measuring sensor 501 is started, and then the translation module 502 drives the laser distance measuring sensor 501 to move along the width direction of the film material 100 to collect the data of the crest and trough of the longitudinal texture of the film material 100.

[0036] See also Figure 1In one embodiment, the driving mechanism 6 includes a main driving roller 601 that is fixed in position and a main driving pressure roller 602 that can press or release the main driving roller 601, and the film material 100 passes between the main driving roller 601 and the main driving pressure roller 602. The driving mechanism 6 set up as above can effectively isolate the winding and unwinding tension, so that the film material 100 maintains a stable tension during the transmission process. Stable tension is a key factor to ensure that the film material 100 is flat and wrinkle-free, which is very important for subsequent processing and treatment. The pressure of the main driving pressure roller 602 can be adjusted to achieve effective driving of different film materials 100. In addition, the main driving pressure roller 602 is made of rubber material, while the main driving roller 601 is a steel roller. This material combination can effectively prevent the film material 100 from sliding during the transmission process. The rubber roller has good friction performance and can increase the friction between it and the film material 100 to prevent it from slipping. The steel roller provides sufficient support and stability.

[0037] See also Figure 1 In one embodiment, a flattening roller 9 is provided between the unwinding mechanism 2 and the front belt pressing mechanism 3. During operation, the film material 100 unwound from the unwinding mechanism 2 passes through the flattening roller 9 and the front belt pressing mechanism 3 in sequence. The flattening roller 9, through its specific design and surface characteristics, can exert a certain pressure and friction force on the film material 100 when it passes by, thereby helping the coil to unfold better. This is particularly effective for the film material 100 that may have slight bends or wrinkles after tension adjustment, and can significantly improve its flatness. If the film material 100 is not fully unfolded before entering the tension detection, it will cause inaccurate detection of the film material 100 or other problems. The setting of the flattening roller 9 can flatten the film material 100 in advance, thereby reducing the occurrence of these problems.

[0038] See also Figure 1 In one embodiment, a first guide roller 10 is provided between the unwinding mechanism 2 and the flattening roller 9, and a second guide roller 11 is provided between the flattening roller 9 and the front belt pressing mechanism 3. The film material 100 unwound from the unwinding mechanism 2 passes through the first guide roller 10, the flattening roller 9, the second guide roller 11, and the front belt pressing mechanism 3 in sequence. The first guide roller 10 and the second guide roller 11 are used to guide and change the belt path of the film material 100, so that the film material 100 unwound from the unwinding mechanism 2 can pass through the flattening roller 9 and the front belt pressing mechanism 3 smoothly.

[0039] See also Figure 1In one embodiment, a third guide roller 12 is provided between the front belt pressing mechanism 3 and the tension adjusting mechanism 4, and a fourth guide roller 13 is provided between the tension adjusting mechanism 4 and the distance measuring mechanism 5. The film 100 passes through the third guide roller 12, the tension adjusting mechanism 4, the fourth guide roller 13, and the distance measuring mechanism 5 in sequence. The third guide roller 12 and the fourth guide roller 13 are used to guide and change the belt path of the film 100 so that the film 100 can smoothly pass through the tension adjusting mechanism 4 and horizontally pass through the distance measuring mechanism 5.

[0040] See also Figure 1 In one embodiment, a fifth guide roller 14 is provided between the rear belt pressing mechanism 7 and the winding mechanism 8, and the film 100 passes through the rear belt pressing mechanism 7 and the fifth guide roller 14 in sequence and is wound in the winding mechanism 8. The fifth guide roller 14 is used to guide and change the belt path of the film 100, so that the film 100 passing through the rear belt pressing mechanism 7 can be smoothly recovered to the winding mechanism 8.

[0041] In one embodiment, a laser rangefinder for measuring the unwinding coil diameter is provided on the unwinding mechanism 2, and the laser rangefinder is used to send the measurement result to the background control system in real time, so as to control the torque of the unwinding motor through the background control system, and then control the tension of the unwinding section. This setting can achieve precise tension control, ensure stability and consistency during the unwinding process, help improve production efficiency and product quality, and reduce waste and defective rate.

[0042] See also Figure 1 In one embodiment, a tension detection roller 15 is provided between the distance measuring mechanism 5 and the driving mechanism 6, and the film material 100 after passing through the distance measuring mechanism 5 passes through the tension detection roller 15 and the driving mechanism 6 in sequence. Among them, a tension sensor is provided on the side of the tension detection roller 15 that contacts the film material 100. The tension sensor is used to measure the tension of the winding section and then feed it back to the winding motor of the winding mechanism 8, and the tension of the winding section is adjusted in a closed loop, so as to ensure the stability of the tension of the film material 100 during the winding process, which is very important for maintaining the quality of the film material 100 and preventing problems such as distortion and wrinkles during the winding process.

[0043] See also Figure 1 In one embodiment, the unwinding mechanism 2 and the rewinding mechanism 8 both adopt a cantilever structure, so that the bottom of both are hollowed out to facilitate docking with the AGV to achieve automatic roll changing.

[0044] It should be noted that the present invention does not limit the specific structure of the front pressing belt mechanism 3 and the rear pressing belt mechanism 7. As long as the structure can achieve the compression of the film material 100, such as using a cylinder in combination with a pressure plate to compress the film material 100, technical personnel in this field can freely choose according to the implementation situation.

[0045] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the claims attached to the utility model.

[0046] The above is an exemplary description of the utility model patent in conjunction with the accompanying drawings. It is obvious that the implementation of the utility model patent is not limited to the above-mentioned method. As long as various improvements are made by adopting the method concept and technical solution of the utility model patent, or the concept and technical solution of the utility model patent are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. A film tension testing machine, characterized in that: The machine comprises a frame, on which an unwinding mechanism, a front belt pressing mechanism, a tension adjusting mechanism, a distance measuring mechanism, a driving mechanism, a rear belt pressing mechanism and a winding mechanism are sequentially arranged along the film material running direction. The film material unwound from the unwinding mechanism passes through the front belt pressing mechanism, the tension adjusting mechanism, the distance measuring mechanism, the driving mechanism and the rear belt pressing mechanism in sequence, and is then wound up in the winding mechanism. The front belt pressing mechanism and the rear belt pressing mechanism are used to press the film material when the distance measuring mechanism is detecting. The distance measuring mechanism is used to detect the difference between the crest and the trough of the longitudinal grain of the film material under a certain tension.

2. The film tension testing machine according to claim 1, characterized in that: The tension adjustment mechanism is a rocker structure, including a rocker roller bracket, a tension roller arranged at one end of the rocker roller bracket, a rotating roller arranged at the other end of the rocker roller bracket, and a telescopic cylinder. The telescopic cylinder is arranged on one side of the rocker roller bracket and is drivingly connected to the rocker roller bracket. The film material passes through the tension roller.

3. The film material tension testing machine according to claim 1, characterized in that: The tension adjustment mechanism is a rocker structure, including a rocker roller bracket, a tension roller arranged at one end of the rocker roller bracket, a rotating roller arranged at the other end of the rocker roller bracket, and a rotating cylinder. The rotating cylinder is arranged at the end of the rotating roller and is drivingly connected to the rotating roller. The film material passes through the tension roller.

4. The film material tension testing machine according to claim 1, characterized in that: The distance measuring mechanism includes a laser distance measuring sensor and a translation module, the translation module is fixed on the frame, the driving end of the translation module is connected to the laser distance measuring sensor and drives the laser distance measuring sensor to move along the width direction of the film material, and the detection end of the laser distance measuring sensor faces the film material.

5. The film tension testing machine according to claim 1, characterized in that: The driving mechanism comprises a main driving roller with a fixed position and a main driving pressure roller which can press or release the main driving roller, and the film material passes between the main driving roller and the main driving pressure roller.

6. The film material tension testing machine according to claim 1, characterized in that: A flattening roller is arranged between the unwinding mechanism and the front belt pressing mechanism, and the film material unwound from the unwinding mechanism passes through the flattening roller and the front belt pressing mechanism in sequence.

7. The film material tension testing machine according to claim 6, characterized in that: A first guide roller is arranged between the unwinding mechanism and the flattening roller, and a second guide roller is arranged between the flattening roller and the front belt pressing mechanism. The film material unwound from the unwinding mechanism passes through the first guide roller, the flattening roller, the second guide roller, and the front belt pressing mechanism in sequence.

8. The film material tension testing machine according to claim 1, characterized in that: A third guide roller is arranged between the front pressure belt mechanism and the tension adjustment mechanism, a fourth guide roller is arranged between the tension adjustment mechanism and the distance measuring mechanism, and the film material passes through the third guide roller, the tension adjustment mechanism, the fourth guide roller, and the distance measuring mechanism in sequence.

9. The film tension testing machine according to claim 1, characterized in that: A fifth guide roller is arranged between the rear belt pressing mechanism and the winding mechanism. The film material passes through the rear belt pressing mechanism and the fifth guide roller in sequence and is then wound in the winding mechanism.

10. The film material tension testing machine according to claim 1, characterized in that: A tension detection roller is arranged between the distance measuring mechanism and the driving mechanism, and the film material passing through the distance measuring mechanism passes through the tension detection roller and the driving mechanism in sequence.

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