CN113371511A - Tension control system and tension control method - Google Patents
Tension control system and tension control method Download PDFInfo
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- CN113371511A CN113371511A CN202110798401.6A CN202110798401A CN113371511A CN 113371511 A CN113371511 A CN 113371511A CN 202110798401 A CN202110798401 A CN 202110798401A CN 113371511 A CN113371511 A CN 113371511A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H23/00—Registering, tensioning, smoothing or guiding webs
- B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
- B65H23/24—Registering, tensioning, smoothing or guiding webs longitudinally by fluid action, e.g. to retard the running web
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H23/00—Registering, tensioning, smoothing or guiding webs
- B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
- B65H23/044—Sensing web tension
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H23/00—Registering, tensioning, smoothing or guiding webs
- B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
- B65H23/18—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web
- B65H23/188—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web in connection with running-web
- B65H23/1888—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web in connection with running-web and controlling web tension
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H43/00—Use of control, checking, or safety devices, e.g. automatic devices comprising an element for sensing a variable
- B65H43/08—Photoelectric devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/10—Handled articles or webs
- B65H2701/11—Dimensional aspect of article or web
- B65H2701/113—Size
- B65H2701/1133—Size of webs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2801/00—Application field
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- Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
Abstract
The invention discloses a tension control system and a tension control method, and relates to the technical field of lithium battery production. The tension control system comprises a camera, a controller, a tape transport mechanism and a tension adjusting mechanism. The camera is connected with the controller, the position of the camera corresponds to the position of the tape transport mechanism, the tape transport mechanism is used for conveying a tape, the camera is used for shooting a real-time image of the tape and sending the real-time image to the controller, the controller is connected with the tension adjusting mechanism, and the controller is used for controlling the tension adjusting mechanism to adjust the tension of the tape in the tape transport mechanism according to the real-time image. Compared with the prior art, the tension control system provided by the invention adopts the controller connected with the camera and the tension adjusting mechanism connected with the controller, so that the tension can be accurately controlled, the time lag effect is weakened, the control precision is high, the interference on the strip running is avoided, and the stability and the reliability are realized.
Description
Technical Field
The invention relates to the technical field of lithium battery production, in particular to a tension control system and a tension control method.
Background
At present, in the production process of lithium cell, need to coil or the lamination to strip (pole piece or diaphragm), at this in-process, the strip unreels the tape and is an indispensable step, and when the tape is walked, need adjust the tension of strip to guarantee the effect of coiling or lamination, improve the yields.
At present, the method of adjusting the tension of the belt material is generally to detect the tension by using a tension sensor installed in the belt traveling system, and then feed back the detection result to a controller to realize the feedback control of the tension, but when the method of adjusting is applied to a light and thin belt traveling system with small elastic modulus and large tension disturbance delay, a large time lag effect is generated, which causes the problems of low tension control precision and large fluctuation. Moreover, one tension sensor can only detect the tension of a certain point of the belt material, and if the tension of the whole belt moving system is controlled, a plurality of sensors are required to be installed, so that the system structure is complex, even motion interference is caused, and the normal operation of the system is influenced.
In view of this, it is important to design a tension control system and a tension control method with high control accuracy, especially in the production of lithium batteries.
Disclosure of Invention
The invention aims to provide a tension control system which can realize accurate control of tension, weaken time lag effect, has high control precision, does not cause interference on strip running, and is stable and reliable.
Another object of the present invention is to provide a tension control method, which can realize accurate control of tension, reduce time lag effect, have high control accuracy, and is stable and reliable without causing interference to the running of the strip.
The invention is realized by adopting the following technical scheme.
A tension control system comprises a camera, a controller, a belt conveying mechanism and a tension adjusting mechanism, wherein the camera is connected with the controller, the position of the camera corresponds to the position of the belt conveying mechanism, the belt conveying mechanism is used for conveying a belt material, the camera is used for shooting a real-time image of the belt material and sending the real-time image to the controller, the controller is connected with the tension adjusting mechanism, and the controller is used for controlling the tension adjusting mechanism to adjust the tension of the belt material in the belt conveying mechanism according to the real-time image.
Optionally, the controller includes a receiving unit, an image comparing unit and a control unit, the receiving unit is connected to the control unit through the image comparing unit, the camera is connected to the receiving unit, the control unit is connected to the tension adjusting mechanism, the receiving unit is configured to receive the real-time image, the image comparing unit is configured to compare the real-time image with a preset image and determine whether the tension of the strip is abnormal, and the control unit is configured to control the tension adjusting mechanism to adjust the tension of the strip so that the real-time image is consistent with the preset image.
Optionally, the image comparison unit includes a comparison module and a judgment module, the receiving unit is connected to the judgment module through the comparison module, the judgment module is connected to the control unit, the comparison module is used for comparing the real-time image with the preset image and generating comparison information, and the judgment module is used for judging whether the tension of the strip material is abnormal according to the comparison information and sending a control signal to the control unit when the tension of the strip material is abnormal.
Optionally, a camera is disposed at a side of the tape transport mechanism, and the camera is used for shooting the bending degree of the tape to form a real-time image.
Optionally, the belt conveying mechanism comprises a first driving roller and a second driving roller, the first driving roller and the second driving roller are arranged in parallel at intervals, and the first driving roller and the second driving roller are both used for limiting and guiding the belt material.
Optionally, the tension adjustment mechanism is an air blowing tension adjustment mechanism for blowing an air stream against the strip material to adjust the tension of the strip material.
Optionally, the number of the cameras, the tape transport mechanism, and the tension adjusting mechanism is multiple, each camera is configured to capture a real-time image of the tape in one tape transport mechanism, and each tension adjusting mechanism is configured to adjust the tension of the tape in one tape transport mechanism.
A tension control method is applied to the tension control system, the tension control system comprises a camera, a controller, a tape transport mechanism and a tension adjusting mechanism, the camera is connected with the controller, the position of the camera corresponds to the position of the tape transport mechanism, the tape transport mechanism is used for conveying a tape, the camera is used for shooting a real-time image of the tape and sending the real-time image to the controller, the controller is connected with the tension adjusting mechanism, and the controller is used for controlling the tension adjusting mechanism to adjust the tension of the tape in the tape transport mechanism according to the real-time image, and the tension control method comprises the following steps: acquiring a real-time image of a belt material shot by a camera in the belt moving process; and controlling the tension adjusting mechanism to adjust the tension of the strip according to the real-time image.
Optionally, the step of controlling the tension adjusting mechanism to adjust the tension of the strip material according to the real-time image comprises: comparing the real-time image with a preset image and generating comparison information; and judging whether the tension of the strip is abnormal according to the comparison information, and controlling the tension adjusting mechanism to adjust the tension of the strip when the tension of the strip is abnormal.
Optionally, the step of determining whether the tension of the strip material is abnormal according to the comparison information, and controlling the tension adjusting mechanism to adjust the tension of the strip material when the tension of the strip material is abnormal includes: if the bending degree of the strip in the real-time image is equal to that of the strip in the preset image, judging that the tension of the strip is moderate; if the bending degree of the belt material in the real-time image is larger than that of the belt material in the preset image, judging that the tension of the belt material is too small, and controlling a tension adjusting mechanism to increase the tension of the belt material; if the bending degree of the strip in the real-time image is smaller than that of the strip in the preset image, judging that the tension of the strip is too large, and controlling a tension adjusting mechanism to reduce the tension of the strip.
The tension control system and the tension control method provided by the invention have the following beneficial effects:
according to the tension control system provided by the invention, the camera is connected with the controller, the position of the camera corresponds to the position of the tape transport mechanism, the tape transport mechanism is used for conveying a tape, the camera is used for shooting a real-time image of the tape and sending the real-time image to the controller, the controller is connected with the tension adjusting mechanism, and the controller is used for controlling the tension adjusting mechanism to adjust the tension of the tape in the tape transport mechanism according to the real-time image. Compared with the prior art, the tension control system provided by the invention adopts the controller connected with the camera and the tension adjusting mechanism connected with the controller, so that the tension can be accurately controlled, the time lag effect is weakened, the control precision is high, the interference on the strip running is avoided, and the stability and the reliability are realized.
The tension control method provided by the invention comprises the tension control system, can realize accurate control of the tension, weakens the time lag effect, has high control precision, does not cause interference on the tape running, and is stable and reliable.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic view of a tension control system according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of another perspective view of a tension control system according to an embodiment of the present invention;
fig. 3 is a block diagram of a controller in a tension control system according to an embodiment of the present invention;
FIG. 4 is a block diagram of the image matching unit in FIG. 3;
fig. 5 is a block diagram illustrating a tension control method according to an embodiment of the present invention.
Icon: 100-a tension control system; 110-a camera; 120-a controller; 121-a receiving unit; 122-image alignment unit; 123-a control unit; 124-alignment module; 125-a judgment module; 130-a tape deck; 131-a first drive roller; 132-a second drive roller; 140-a tension adjustment mechanism; 200-strip.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "inside", "outside", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships conventionally put in use of products of the present invention, and are only for convenience of description and simplicity of description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "connected," "mounted," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Some embodiments of the invention are described in detail below with reference to the accompanying drawings. Features in the embodiments described below may be combined with each other without conflict.
Referring to fig. 1, 2, 3 and 4 (the arrows in fig. 1 and 2 indicate the air flow direction), the embodiment of the present invention provides a tension control system 100 for controlling the tension of a strip material 200. The tension control device can realize accurate control of tension, weaken time lag effect, has high control precision, cannot cause interference on the moving of the strip material 200, and is stable and reliable.
In this embodiment, the strip 200 is a pole piece or a diaphragm, the tension control system 100 is applied to the technical field of lithium battery production, and the tension control system 100 is used for controlling the tension of the pole piece or the diaphragm in the tape transport process, so as to facilitate winding or lamination, improve the quality of a battery core, and ensure the quality of a lithium battery. But not limited thereto, in other embodiments, the belt material 200 may be cloth or paper, and the tension control system 100 may also be applied to the textile or paper manufacturing technology field, and the application scenario of the tension control system 100 is not particularly limited.
The tension control system 100 includes a camera 110, a controller 120, a deck 130, and a tension adjustment mechanism 140. The tape transport mechanism 130 is used for transporting the tape 200, and the tape 200 can be transported by the tape transport mechanism 130 to perform a winding or laminating function. The camera 110 is connected with the controller 120, the position of the camera 110 corresponds to the position of the tape deck 130, and the camera 110 is used for shooting a real-time image of the tape 200 during the tape running process and sending the real-time image to the controller 120. The controller 120 is connected with the tension adjusting mechanism 140, the controller 120 is used for controlling the tension adjusting mechanism 140 to adjust the tension of the strip 200 in the tape transport mechanism 130 according to the real-time image, so that the tension of the strip 200 is kept within a preset range, the tension is accurately controlled, the time lag effect is weakened, the control precision is high, and the camera 110 is not installed on the tape transport mechanism 130, cannot cause interference on the tape transport 200, and is stable and reliable.
The controller 120 includes a receiving unit 121, an image comparing unit 122, and a control unit 123. The receiving unit 121 is connected to the control unit 123 through the image comparing unit 122, the camera 110 is connected to the receiving unit 121, and the camera 110 is configured to send a real-time image to the receiving unit 121. The control unit 123 is connected to the tension adjusting mechanism 140, and the control unit 123 is used for controlling the tension adjusting mechanism 140 to adjust the tension of the strip 200. Specifically, the receiving unit 121 is configured to receive the real-time image and send the real-time image to the image comparing unit 122. The image comparison unit 122 is configured to compare the real-time image with a preset image, and determine whether the tension of the strip 200 is abnormal. The control unit 123 is configured to control the tension adjusting mechanism 140 to adjust the tension of the strip 200 so that the real-time image is consistent with the preset image.
It should be noted that when the real-time image is identical (completely identical or slightly different) with the preset image, it indicates that the tension of the strip 200 is within the preset range, the tension of the strip 200 is in a normal state, and no tension adjustment is needed, and the tension adjustment mechanism 140 does not operate; when the real-time image is inconsistent with the preset image (the difference is large), it indicates that the tension of the strip 200 is not within the preset range, and the tension of the strip 200 is in an abnormal state, and at this time, the tension adjusting mechanism 140 adjusts the tension of the strip 200, so that the real-time image is consistent with the preset image.
The image matching unit 122 includes a matching module 124 and a determining module 125. The receiving unit 121 is connected to the determining module 125 through the comparing module 124, and the determining module 125 is connected to the controlling unit 123. The comparison module 124 is configured to compare the real-time image with a preset image and generate comparison information. The judging module 125 is configured to judge whether the tension of the strip 200 is abnormal according to the comparison information, and send a control signal to the control unit 123 when the tension of the strip 200 is abnormal, so that the control unit 123 controls the tension adjusting mechanism 140 to adjust the tension of the strip 200.
In this embodiment, the camera 110 is disposed on a side surface of the tape transport mechanism 130, and the camera 110 is used for capturing a curvature of the tape 200 to form a real-time image, in which the tape 200 is linear. Specifically, the degree of curvature of the strip 200 represents the degree of straightening, and thus the tension of the strip 200. The greater the tension of the strip material 200, the greater the straightening degree of the strip material 200, the smaller the bending degree of the strip material 200, and the closer the strip material 200 in the real-time image is to a straight line; the less the tension of the strip material 200, the less the straightening of the strip material 200, the more the bending of the strip material 200, and the more the curvature of the strip material 200 in the real-time image.
The belt conveying mechanism 130 includes a first driving roller 131 and a second driving roller 132. The first driving roller 131 and the second driving roller 132 are arranged in parallel at intervals, and the first driving roller 131 and the second driving roller 132 are used for limiting and guiding the strip 200. The strip material 200 can be displaced by the first driving roller 131 and the second driving roller 132, so as to realize the tape-moving function. Specifically, the camera 110 is located in the middle of the first driving roller 131 and the second driving roller 132, and is spaced apart from one side of the strip 200, so as to photograph the bending degree of the strip 200, and not to interfere with the strip 200.
In the present embodiment, the tension adjusting mechanism 140 is an air blowing type tension adjusting mechanism, and the tension adjusting mechanism 140 is used for blowing an air flow toward the strip material 200 to adjust the tension of the strip material 200. Specifically, the tension adjusting mechanism 140 is located between the first driving roller 131 and the second driving roller 132, and is spaced above or below the strip 200, and the tension adjusting mechanism 140 can adjust the tension of the strip 200 by blowing air. The greater the flow rate of the air stream blown by the tension adjustment mechanism 140, the greater the tension of the strip material 200; the lower the flow rate of the air stream from the tension adjustment mechanism 140, the lower the tension in the strip material 200. However, the tension adjusting mechanism 140 is not limited to this, and in other embodiments, the tension adjusting mechanism 140 may be a tension wheel tension adjusting mechanism, and the type of the tension adjusting mechanism 140 is not particularly limited.
In this embodiment, the number of the cameras 110, the tape transport mechanisms 130, and the tension adjusting mechanisms 140 is plural, the number of the controllers 120 is one, each camera 110 is configured to capture a real-time image of the tape 200 in one tape transport mechanism 130, and each tension adjusting mechanism 140 is configured to adjust the tension of the tape 200 in one tape transport mechanism 130. Specifically, the plurality of belt feeding mechanisms 130 are combined to form a belt feeding system, the plurality of cameras 110 can send a plurality of real-time images in the belt feeding system to the controller 120, and the controller 120 can obtain the overall information of the tension change of the belt feeding system according to the real-time images, so as to realize the overall adjustment of the plurality of tension adjusting mechanisms 140, so that the tension control system 100 can realize the real-time feedback, prediction and control of the tension of the belt material 200, and the precision and stability of the tension control of the belt material 200 are greatly improved. However, the present invention is not limited thereto, and in other embodiments, the number of the cameras 110 is one, the cameras 110 are three-dimensional cameras, the cameras 110 can simultaneously capture real-time images of the strip 200 in the plurality of tape transport mechanisms 130, and the type, number and arrangement position of the cameras 110 are not particularly limited.
Referring to fig. 5, an embodiment of the present invention further provides a tension control method applied to the tension control system 100, the tension control method includes the following steps:
step S110: real-time images of the strip 200 captured by the camera 110 during the tape transport are acquired.
In step S110, the camera 110 is disposed on a side surface of the strip 200, the strip 200 is driven by the tape transport mechanism 130 to be transported, and in this process, the camera 110 continuously captures a shape of the side surface of the strip 200 to form a real-time image.
Step S120: the tension adjusting mechanism 140 is controlled to adjust the tension of the strip 200 based on the real-time image.
Specifically, step S120 includes two steps, which are respectively:
step S121: and comparing the real-time image with a preset image and generating comparison information.
It should be noted that the preset image is pre-stored in the controller 120, and in step S121, the comparison module 124 of the controller 120 compares the real-time image with the preset image to obtain comparison information.
Step S122: and judging whether the tension of the strip material 200 is abnormal or not according to the comparison information, and controlling the tension adjusting mechanism 140 to adjust the tension of the strip material 200 when the tension of the strip material 200 is abnormal.
In step S122, the determination module 125 of the controller 120 determines whether the tension of the strip material 200 is abnormal or not according to the comparison information. Specifically, if the bending degree of the strip 200 in the real-time image is equal to the bending degree of the strip 200 in the preset image, it is determined that the tension of the strip 200 is moderate, and the tension of the strip 200 is in a normal state within a preset range, and tension adjustment is not needed, and at this time, the tension adjustment mechanism 140 does not act; if the bending degree of the strip material 200 in the real-time image is greater than the bending degree of the strip material 200 in the preset image, judging that the tension of the strip material 200 is too small, and controlling the tension adjusting mechanism 140 to increase the tension of the strip material 200 until the bending degree of the strip material 200 in the real-time image is equal to the bending degree of the strip material 200 in the preset image; if the bending degree of the strip material 200 in the real-time image is less than the bending degree of the strip material 200 in the preset image, the tension of the strip material 200 is determined to be too large, and at this time, the tension adjusting mechanism 140 is controlled to reduce the tension of the strip material 200 until the bending degree of the strip material 200 in the real-time image is equal to the bending degree of the strip material 200 in the preset image.
In the tension control system 100 provided by the embodiment of the present invention, the camera 110 is connected to the controller 120, the position of the camera 110 corresponds to the position of the tape transport mechanism 130, the tape transport mechanism 130 is configured to transport the tape 200, the camera 110 is configured to capture a real-time image of the tape 200 and send the real-time image to the controller 120, the controller 120 is connected to the tension adjustment mechanism 140, and the controller 120 is configured to control the tension adjustment mechanism 140 to adjust the tension of the tape 200 in the tape transport mechanism 130 according to the real-time image. Compared with the prior art, the tension control system 100 provided by the invention adopts the controller 120 connected with the camera 110 and the tension adjusting mechanism 140 connected with the controller 120, so that the tension can be accurately controlled, the time lag effect is reduced, the control precision is high, the interference on the moving of the strip material 200 is avoided, and the stability and the reliability are realized. The tension control method has simple steps and good tension control effect.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The tension control system is characterized by comprising a camera, a controller, a belt conveying mechanism and a tension adjusting mechanism, wherein the camera is connected with the controller, the position of the camera corresponds to that of the belt conveying mechanism, the belt conveying mechanism is used for conveying a belt material, the camera is used for shooting a real-time image of the belt material and sending the real-time image to the controller, the controller is connected with the tension adjusting mechanism, and the controller is used for controlling the tension adjusting mechanism to adjust the tension of the belt material in the belt conveying mechanism according to the real-time image.
2. The tension control system according to claim 1, wherein the controller comprises a receiving unit, an image comparison unit and a control unit, the receiving unit is connected with the control unit through the image comparison unit, the camera is connected with the receiving unit, the control unit is connected with the tension adjustment mechanism, the receiving unit is used for receiving the real-time image, the image comparison unit is used for comparing the real-time image with a preset image and judging whether the tension of the strip material is abnormal, and the control unit is used for controlling the tension adjustment mechanism to adjust the tension of the strip material so that the real-time image and the preset image are kept consistent.
3. The tension control system according to claim 2, wherein the image comparison unit comprises a comparison module and a judgment module, the receiving unit is connected with the judgment module through the comparison module, the judgment module is connected with the control unit, the comparison module is used for comparing the real-time image with the preset image and generating comparison information, and the judgment module is used for judging whether the tension of the strip material is abnormal according to the comparison information and sending a control signal to the control unit when the tension of the strip material is abnormal.
4. The tension control system of claim 1, wherein the camera is disposed at a side of the deck, the camera being configured to capture a degree of curvature of the strip material to form the live image.
5. The tension control system of claim 1, wherein the deck includes a first drive roller and a second drive roller spaced apart in parallel, the first drive roller and the second drive roller both being configured to position and guide the strip material.
6. The tension control system of claim 1, wherein the tension adjustment mechanism is an air-blown tension adjustment mechanism for blowing an air stream against the strip material to adjust the tension of the strip material.
7. The tension control system of claim 1, wherein the number of cameras, the tape deck, and the tension adjustment mechanisms are each a plurality, each camera for capturing the real-time image of the strip material in one of the tape decks, and each tension adjustment mechanism for adjusting the tension of the strip material in one of the tape decks.
8. A tension control method applied to the tension control system according to any one of claims 1 to 7, the tension control method comprising:
acquiring the real-time image of the strip shot by the camera in the process of tape transport;
and controlling the tension adjusting mechanism to adjust the tension of the strip according to the real-time image.
9. The tension control method according to claim 8, wherein the step of controlling the tension adjusting mechanism to adjust the tension of the strip material according to the real-time image comprises:
comparing the real-time image with a preset image and generating comparison information;
and judging whether the tension of the strip material is abnormal or not according to the comparison information, and controlling the tension adjusting mechanism to adjust the tension of the strip material when the tension of the strip material is abnormal.
10. The tension control method according to claim 9, wherein the step of determining whether the tension of the strip material is abnormal or not based on the comparison information, and controlling the tension adjustment mechanism to adjust the tension of the strip material when the tension of the strip material is abnormal includes:
if the bending degree of the strip material in the real-time image is equal to that of the strip material in the preset image, judging that the tension of the strip material is moderate;
if the bending degree of the belt material in the real-time image is greater than that of the belt material in the preset image, judging that the tension of the belt material is too small, and controlling the tension adjusting mechanism to increase the tension of the belt material;
if the bending degree of the strip material in the real-time image is smaller than that of the strip material in the preset image, judging that the tension of the strip material is too large, and controlling the tension adjusting mechanism to reduce the tension of the strip material.
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| CN202110798401.6A CN113371511A (en) | 2021-07-15 | 2021-07-15 | Tension control system and tension control method |
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| CN103387147A (en) * | 2012-05-11 | 2013-11-13 | 丰田纺织株式会社 | Sheet material conveying apparatus |
| CN108529288A (en) * | 2018-03-23 | 2018-09-14 | 奥美森智能装备股份有限公司 | Unreeling system |
| CN209383152U (en) * | 2018-12-29 | 2019-09-13 | 络派科技(深圳)有限公司 | A kind of device compound for ultra-thin materials |
| CN209635544U (en) * | 2019-03-08 | 2019-11-15 | 绍兴恒元机械制造有限公司 | A kind of textile arc-shaped bend deviation correction mechanism and forming machine |
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2021
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| JPH07215553A (en) * | 1994-02-02 | 1995-08-15 | Nkk Corp | Free loop amount measurement method |
| JPH07315647A (en) * | 1994-05-27 | 1995-12-05 | Toshiba Corp | Paper loosening adjusting controller |
| US6230616B1 (en) * | 1998-09-17 | 2001-05-15 | Armin Steuer | Storage device and its use |
| CA2324717A1 (en) * | 2000-05-09 | 2001-11-09 | Moore North America, Inc. | Paper web tensioned loop formed by an air curtain |
| JP2001347713A (en) * | 2000-06-06 | 2001-12-18 | Konica Corp | Ink jet recorder |
| JP2008174363A (en) * | 2007-01-19 | 2008-07-31 | Nippon Avionics Co Ltd | Tape transport device |
| CN201686331U (en) * | 2010-08-18 | 2010-12-29 | 梁承庆 | Full-automatic on-line corona treatment feeder |
| CN103387147A (en) * | 2012-05-11 | 2013-11-13 | 丰田纺织株式会社 | Sheet material conveying apparatus |
| CN108529288A (en) * | 2018-03-23 | 2018-09-14 | 奥美森智能装备股份有限公司 | Unreeling system |
| CN209383152U (en) * | 2018-12-29 | 2019-09-13 | 络派科技(深圳)有限公司 | A kind of device compound for ultra-thin materials |
| CN209635544U (en) * | 2019-03-08 | 2019-11-15 | 绍兴恒元机械制造有限公司 | A kind of textile arc-shaped bend deviation correction mechanism and forming machine |
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