CN111637995A - End socket pressure detection method and device - Google Patents
End socket pressure detection method and device Download PDFInfo
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- CN111637995A CN111637995A CN202010537987.6A CN202010537987A CN111637995A CN 111637995 A CN111637995 A CN 111637995A CN 202010537987 A CN202010537987 A CN 202010537987A CN 111637995 A CN111637995 A CN 111637995A
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- 238000003825 pressing Methods 0.000 claims description 107
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- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 5
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- 241000271510 Agkistrodon contortrix Species 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
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- 238000005260 corrosion Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/0028—Force sensors associated with force applying means
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The application provides a method and a device for detecting end socket pressure. The end socket pressure detection method comprises the following steps: acquiring a pressure line image of the pressure measurement piece, wherein the pressure line image is an image formed by clamping the pressure measurement piece by a first seal head and a second seal head; sequentially acquiring brightness values of a plurality of extrusion areas according to the pressure line image and along a direction parallel to the pressure line, wherein the pressure line image is formed by the images of the extrusion areas; and correspondingly acquiring a pressure value according to the brightness value, and sending the pressure value to a detection system. The brightness of the pressure line left after the end socket extrudes the pressure measuring piece is obtained, and the pressure is converted in a brightness value mode, so that the brightness on the pressure line correspondingly represents the pressure of each position of the end socket, and the pressure of the end socket during extrusion and the pressure distribution condition are accurately obtained.
Description
Technical Field
The invention relates to the technical field of pressure detection, in particular to a method and a device for detecting the pressure of a seal head.
Background
With the technical development of soft package lithium ion batteries, the soft package lithium ion battery has the advantages of small volume, light weight, high specific energy, high safety, flexible design and the like, so that the soft package lithium ion battery is widely applied to the 3C digital and automobile power battery industry, gradually replaces the traditional lithium ion battery, and becomes the mainstream lithium ion battery.
Soft packet of ion lithium cell need carry out the side seal between the top seal of packaging film and utmost point ear and the packaging film in process of production, the purpose of top side seal is in order to completely cut off with the outside with electric core is inside, reach good sealed effect, prevent that moisture content from getting into the core, it is T type copper head to seal the equipment present commonly used of side, heat and pressurize the plastic-aluminum membrane when the encapsulation, make between plastic-aluminum membrane and utmost point ear glue, PP gluing between the plastic-aluminum membrane is in the same place and is reached sealed effect. The parallelism and the pressure of the two end sockets in the production process determine the sealing effect. In the actual production process, the thickness of the sealed edge is inconsistent due to the parallelism difference of the upper and lower seal heads, and finally the conditions of liquid leakage, corrosion and the like are caused, so that the failure of the product is caused. In addition, even if the end sockets are still parallel, after the aluminum-plastic composite battery is used for a period of time, the surface of the end sockets are abraded to form defects, so that the pressure on the aluminum-plastic composite battery is insufficient, the aluminum-plastic composite battery cannot be fused well, and a poor battery product is produced. Therefore, a method for detecting the parallelism and the defects of the seal head and the contact pressure of the seal head, which can be fast and conveniently, is needed in the actual production process.
In the traditional detection method, only carbon paper is used for detecting the parallelism of the seal head, although the parallelism of the seal head can be qualitatively detected, the actual pressure can not be quantitatively displayed, and the accurate measurement of the pressure of the seal head can not be realized.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a method and a device for detecting the pressure of a seal head, which solve the technical problems.
The purpose of the invention is realized by the following technical scheme:
a seal head pressure detection method comprises the following steps: acquiring a pressure line image of the pressure measurement piece, wherein the pressure line image is an image formed by clamping the pressure measurement piece by a first seal head and a second seal head; sequentially acquiring brightness values of a plurality of extrusion areas according to the pressure line image and along a direction parallel to the pressure line, wherein the pressure line image is formed by the images of the extrusion areas; and correspondingly acquiring a pressure value according to the brightness value, and sending the pressure value to a detection system.
In one embodiment, the acquiring a pressure line image of the pressure measurement member includes: scanning the pressure measurement piece along a preset direction, and acquiring a color value distribution image of the pressure measurement piece; and acquiring the pressure line image according to the color value distribution image.
In one embodiment, the acquiring the pressure line image according to the color value distribution image includes: acquiring color values to be detected of a plurality of image areas according to the color value distribution image; detecting whether the color value to be detected is matched with a preset color value or not; when the color value to be detected is matched with the preset color value, acquiring a position parameter of an image area corresponding to the color value to be detected; and forming the pressure line image according to the position parameters of the image area.
In one embodiment, the acquiring the pressure line image according to the color value distribution image includes: acquiring color values to be detected of a plurality of image areas according to the color value distribution image; detecting whether the color value to be detected is matched with a preset color value or not; when the color value to be detected is matched with the preset color value, acquiring a position parameter of an image area corresponding to the color value to be detected; and forming the pressure line image according to the position parameters of the image area.
In one embodiment, the acquiring a pressure line image of the pressure measurement member further includes: driving the first seal head and the second seal head to move towards the pressure measuring part; and driving the first sealing head and the second sealing head to respectively extrude two side surfaces of the pressure measuring piece within a preset time.
In one embodiment, the preset time is 1-8 seconds.
In one embodiment, the preset time is 5 seconds.
In one embodiment, the obtaining a pressure value according to the brightness value and sending the pressure value to a detection system further includes: detecting whether the brightness values of any two extrusion areas are equal or not; and when the brightness values of any two extrusion areas are equal, sending a normal seal head signal to the detection system.
In one embodiment, the detecting whether the brightness values of any two of the squeezing areas are equal further includes: and when the brightness values of any two extrusion areas are not equal, sending an end socket abnormal signal to the detection system.
A seal head pressure detection device comprises a first seal head, a second seal head, a pressure measurement piece, an acquisition module and a processing module, wherein the first seal head and the second seal head are oppositely arranged, the pressure measurement piece is arranged between the first seal head and the second seal head and is used for acquiring a pressure line when the first seal head and the second seal head are extruded, the output end of the acquisition module is connected with the input end of the processing module, and the output end of the processing module is used for being connected with a detection system; the acquisition module is used for acquiring a pressure line image of the pressure measurement piece, wherein the pressure line image is an image formed by clamping the pressure measurement piece by a first seal head and a second seal head; sequentially acquiring brightness values of a plurality of extrusion areas according to the pressure line image and along a direction parallel to the pressure line, wherein the pressure line image is formed by the images of the extrusion areas; and the processing module is used for correspondingly acquiring a pressure value according to the brightness value and sending the pressure value to the detection system.
Compared with the prior art, the invention has at least the following advantages:
the brightness of the pressure line left after the end socket extrudes the pressure measuring piece is obtained, and the pressure is converted in a brightness value mode, so that the brightness on the pressure line correspondingly represents the pressure of each position of the end socket, and the pressure of the end socket during extrusion and the pressure distribution condition are accurately obtained.
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 flow chart of a head pressure detection method in one embodiment;
fig. 2 is a schematic structural diagram of the head pressure detection device in an embodiment.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The invention relates to a method for detecting the pressure of a seal head. In one embodiment, the seal head pressure detection method comprises the following steps: acquiring a pressure line image of the pressure measurement piece, wherein the pressure line image is an image formed by clamping the pressure measurement piece by a first seal head and a second seal head; sequentially acquiring brightness values of a plurality of extrusion areas according to the pressure line image and along a direction parallel to the pressure line, wherein the pressure line image is formed by the images of the extrusion areas; and correspondingly acquiring a pressure value according to the brightness value, and sending the pressure value to a detection system. The brightness of the pressure line left after the end socket extrudes the pressure measuring piece is obtained, and the pressure is converted in a brightness value mode, so that the brightness on the pressure line correspondingly represents the pressure of each position of the end socket, and the pressure of the end socket during extrusion and the pressure distribution condition are accurately obtained.
Fig. 1 is a flowchart illustrating a method for detecting a head pressure according to an embodiment of the present invention. The end socket pressure detection method comprises the following steps of partially or completely.
S100: and acquiring a pressure line image of the pressure measurement piece, wherein the pressure line image is an image formed by clamping the pressure measurement piece by the first seal head and the second seal head.
In this embodiment, the pressure measuring part includes a pressure sensing paper, and the pressure measuring part is pressed by the first sealing head and the second sealing head and generates a pressure line on the pressure measuring part. Due to the characteristics of the pressure measuring member itself, that is, after being pressed, the pressed position forms a mark which is different from other non-pressed positions, for example, a red line is generated on the pressure measuring member under the pressing of the first sealing head and the second sealing head. The color of a pressure line on the pressure measuring piece is different from that of an area which is not extruded around the pressure measuring piece, and the pressure line is used for displaying the specific position of the first sealing head and the second sealing head which extrude the pressure measuring piece. Therefore, under the condition that the colors of pressure lines on the pressure measurement piece are different, the first seal head and the second seal head can be conveniently and quickly obtained to extrude the area of the pressure measurement piece, and the pressure between the first seal head and the second seal head can be conveniently and quickly obtained according to the pressure line image.
S200: and sequentially acquiring brightness values of a plurality of extrusion areas according to the pressure line image and along a direction parallel to the pressure line, wherein the pressure line image is formed by the images of the extrusion areas.
In this embodiment, the pressure line image is a straight line image, and the brightness value represents the brightness of the pressure line image, that is, the brightness value represents the color depth of the pressure line image. Due to the fact that the first seal head and the second seal head are not parallel or defective when being extruded, the pressure measuring piece is not extruded by a part of the first seal head or the second seal head, and therefore the brightness value of a part of the area in the pressure line image is different from the brightness of other areas, namely the brightness of each area in the pressure line image is different, namely the brightness value of each area in the pressure line image is not equal completely. Therefore, in order to obtain the pressure condition between the first seal head and the second seal head, the brightness values of a plurality of extrusion areas are obtained from the pressure line image, namely the brightness values are obtained from different areas of the pressure line image, and different brightness values reflect that the pressure received by the pressure measuring part is different, so that the pressure condition between the first seal head and the second seal head at different positions can be reflected, and the pressure condition between the first seal head and the second seal head and the pressure distribution condition can be conveniently and accurately obtained subsequently.
S300: and correspondingly acquiring a pressure value according to the brightness value, and sending the pressure value to a detection system.
In this embodiment, the characteristic of the pressure measuring member is that the pressing marks with different brightness are formed on the pressure measuring member according to the difference of the pressing force, that is, the characteristic of the pressure measuring member is that the pressure lines with different color shades are formed on the pressure measuring member according to the difference of the pressing force. After the first seal head and the second seal head extrude the pressure measuring piece, lines with brightness different from other non-extruded areas are left on the pressure measuring piece, namely the pressure line images are obtained through obtaining brightness values of different extruded areas, and pressure values are obtained correspondingly again. Therefore, the extrusion force between the first seal head and the second seal head is converted into the brightness of the pressure measuring part, and then the brightness value is correspondingly converted into the pressure value according to the brightness value of the extrusion area, so that the pressure between the first seal head and the second seal head is converted through the constant brightness and finally displayed in the mode of the pressure value, and the pressure between the first seal head and the second seal head and the distribution condition of the pressure are accurately obtained.
In one embodiment, the acquiring a pressure line image of the pressure measurement member includes: scanning the pressure measurement piece along a preset direction, and acquiring a color value distribution image of the pressure measurement piece; and acquiring the pressure line image according to the color value distribution image. In this embodiment, the preset direction is parallel to the direction of the first seal head and the second seal head, so as to obtain the lines in the pressure line image, that is, the preset direction is parallel to the extending direction of the lines in the pressure line image, so as to obtain the pressure line image quickly. Moreover, in the scanning process, through right color value on the pressure measurement spare acquires the color value distribution image of pressure measurement spare, because the color of pressure measurement spare after the extrusion changes, and the regional colour value of extrusion is different with the regional colour value of not being extruded promptly, through right color value distribution image's analysis, be convenient for acquire fast the last lines of pressure measurement spare, thereby be convenient for acquire pressure lines image.
In one embodiment, the pressure line image is red, and the other areas of the pressure measuring piece are white, so that the pressure line image can be distinguished and acquired quickly according to different color values.
In one embodiment, the acquiring the pressure line image according to the color value distribution image includes: acquiring color values to be detected of a plurality of image areas according to the color value distribution image; detecting whether the color value to be detected is matched with a preset color value or not; when the color value to be detected is matched with the preset color value, acquiring a position parameter of an image area corresponding to the color value to be detected; and forming the pressure line image according to the position parameters of the image area. In this embodiment, the color value distribution image includes color values of all regions on the pressure measuring member, that is, the color value of each position on the pressure measuring member constitutes the color value distribution image. Dividing the color value distribution image into color value distribution images of a plurality of image areas, enabling each area on the pressure measurement piece to correspond to a color value, matching the acquired color value to be measured with the preset color value, and acquiring a required image area. Therefore, the pressure line image is formed in the image area which meets the color value requirement and according to the corresponding position parameters, and the pressure line image on the pressure measuring piece can be conveniently and quickly obtained.
In one embodiment, the detecting whether the color value to be detected is matched with a preset color value includes: detecting whether the color value to be detected is larger than the preset color value or not; when the color value to be measured is matched with the preset color value, the position parameter of the image area corresponding to the color value to be measured is obtained, and the method comprises the following steps: and when the color value to be detected is larger than the preset color value, acquiring the position parameter of the image area corresponding to the brightness value to be detected. In this embodiment, after the pressure measurement member is pressed, a red imprinted line, that is, a pressure line, is formed on the pressure measurement member, and an original color of the pressure measurement member is white, so that a color of an area of the pressure measurement member that is not pressed is white, the preset color value is a color value corresponding to white, and the color value corresponding to white is smaller than the color value corresponding to red. And detecting whether the color value to be detected is larger than the preset color value or not, namely comparing the color value of any region on the pressure measurement piece with the color value corresponding to white, wherein after the pressure measurement piece is extruded, only two regions with different colors exist on the pressure measurement piece, namely a red pressure line region corresponding to the extruded region and a white region corresponding to the non-extruded region. The color value to be detected is larger than the preset color value, which indicates that the color value for detection is larger than the color value corresponding to white, i.e. indicates that the image area corresponding to the color value to be detected is the extrusion area. Therefore, after the extrusion areas are determined, the extrusion areas are combined to form the pressure line image, and the position parameters corresponding to the extrusion areas on the pressure measurement piece are determined according to the position parameters of the image areas corresponding to the brightness values to be detected, so that the position of the pressure line image on the pressure measurement piece is conveniently acquired, and the brightness values on the pressure line image can be conveniently and rapidly acquired subsequently.
In one embodiment, the acquiring a pressure line image of the pressure measurement member further includes: driving the first seal head and the second seal head to move towards the pressure measuring part; and driving the first sealing head and the second sealing head to respectively extrude two side surfaces of the pressure measuring piece within a preset time. In this embodiment, the first sealing head and the second sealing head are respectively located on two sides of the pressure measurement piece, before detection is not performed, the first sealing head and the second sealing head are located at positions far away from the pressure measurement piece, and when detection is started, the first sealing head and the second sealing head are driven to move so as to clamp the pressure measurement piece, so that a pressure line is formed on the pressure measurement piece. In order to improve the definition of the pressure line image, the extrusion time of the first seal head and the second seal head needs to be adjusted, namely, a clearer pressure line image is obtained by adjusting the extrusion time. Through setting up the time of predetermineeing, make first head with the second head extrusion pressure measurement spare's time extension, thereby make pressure lines image on the pressure measurement spare is more clear, has reduced the acquireing the incomplete probability of pressure lines image, and then has improved and has acquireed the degree of accuracy of pressure lines image is convenient for follow-up basis pressure lines image obtains the pressure size and the distribution situation fast.
In one embodiment, the first seal head and the second seal head extrude for the preset time, wherein the preset time is the time when the first seal head and the second seal head continue to extrude the pressure measuring part after the extrusion force between the first seal head and the second seal head reaches the preset pressure. Therefore, the finally obtained pressure value is closer to the actual pressure between the first seal head and the second seal head, and the accuracy of obtaining the pressure value is further improved.
In one embodiment, the preset time is 1-8 seconds. In one embodiment, the preset time is 5 seconds. Therefore, the preset time is short time, namely the first seal head and the second seal head are extruded instantly, so that the instant pressure and distribution of the first seal head and the second seal head can be conveniently obtained.
In one embodiment, the preset time is 1 to 4 minutes. In one embodiment, the predetermined time is 2 minutes. Therefore, the preset time is long, namely the first seal head and the second seal head are extruded continuously, so that the continuous pressure and the distribution of the first seal head and the second seal head can be conveniently obtained.
In one embodiment, the obtaining a pressure value according to the brightness value and sending the pressure value to a detection system further includes: detecting whether the brightness values of any two extrusion areas are equal or not; and when the brightness values of any two extrusion areas are equal, sending a normal seal head signal to the detection system. In this embodiment, the extrusion region is a region on the pressure line image, and the pressure line image includes a plurality of extrusion regions, that is, the plurality of extrusion regions jointly form the pressure line image. Because the levelness between the first seal head and the second seal head is problematic, and when the first seal head and the second seal head are used for a long time, the side of the first seal head and the side of the second seal head, which is used for extrusion, are worn, for example, the side, close to the pressure measuring part, of the first seal head and the second seal head are provided with a recess, so that insufficient pressure or missing exists between the first seal head and the second seal head. In order to solve the technical problem, after the brightness values of the extrusion areas are obtained, the brightness values of any two extrusion areas are compared, so that the brightness condition of each extrusion area of the pressure line image is obtained, and whether the color brightness of the pressure line image is the same or not is further determined, that is, whether the color depth of the pressure line image is the same or not is judged. The brightness values of any two extrusion areas are equal, which indicates that the brightness of each extrusion area of the pressure line image is the same, i.e. the color depth degree of the pressure line image is consistent, i.e. the pressure at each position between the first seal head and the second seal head is the same, so that the first seal head and the second seal head are parallel to each other, the level degree between the first seal head and the second seal head is determined, and whether the first seal head and the second seal head are level or not is conveniently and rapidly judged. Therefore, under the condition that the brightness values of any two extrusion areas are equal, the first seal head and the second seal head are parallel and level with each other, the position of the first seal head and the position of the second seal head do not need to be adjusted, and extrusion operation can be carried out. And sending a normal seal head signal to a detection system, so that monitoring personnel/operating personnel can conveniently and timely obtain the current working states of the first seal head and the second seal head, and the defective rate of the produced products is reduced.
In one embodiment, the detecting whether the brightness values of any two of the squeezing areas are equal further includes: and when the brightness values of any two extrusion areas are not equal, sending an end socket abnormal signal to the detection system. In this embodiment, the extrusion region is a region on the pressure line image, and the pressure line image includes a plurality of extrusion regions, that is, the plurality of extrusion regions jointly form the pressure line image. Because the levelness between the first seal head and the second seal head is problematic, and when the first seal head and the second seal head are used for a long time, the side of the first seal head and the side of the second seal head, which is used for extrusion, are worn, for example, the side, close to the pressure measuring part, of the first seal head and the second seal head are provided with a recess, so that insufficient pressure or missing exists between the first seal head and the second seal head. In order to solve the technical problem, after the brightness values of the extrusion areas are obtained, the brightness values of any two extrusion areas are compared, so that the brightness condition of each extrusion area of the pressure line image is obtained, and whether the color brightness of the pressure line image is the same or not is further determined, that is, whether the color depth of the pressure line image is the same or not is judged. The brightness values of any two extrusion areas are different, which indicates that the brightness of each extrusion area of the pressure line image is different, i.e. the color depth of the pressure line image is different, i.e. the pressure at each position between the first seal head and the second seal head is uneven, for example, the first seal head and the second seal head are not parallel or obliquely arranged; for another example, at least one of the first head and the second head has a recess, wherein the recess is located on a side of the first head and the second head close to the pressure measuring part, and an opening of the recess faces the pressure measuring part. The parallel and level degree between the first seal head and the second seal head is determined, and whether the first seal head and the second seal head are parallel and level or not is judged conveniently and rapidly. Therefore, under the condition that the brightness values of any two extrusion areas are different, the mutual inclination or defects between the first seal head and the second seal head needs to adjust the positions of the first seal head and the second seal head or replace the first seal head and the second seal head. And sending an end enclosure abnormal signal to a detection system, so that monitoring personnel/operating personnel can find abnormal conditions of the first end enclosure and the second end enclosure in time, the monitoring personnel/operating personnel can adjust or replace the first end enclosure and the second end enclosure in time, and the defective rate of produced products is reduced.
In one embodiment, a head pressure detection device is provided, which is implemented by using the head pressure detection method described in any one of the above embodiments. In one embodiment, the seal head pressure detection device is provided with functional modules corresponding to the steps of the seal head pressure detection method. Referring to fig. 2, the seal head pressure detecting device 10 includes: the detection device comprises a first seal head 100, a second seal head 200, a pressure measuring part 300, an acquisition module and a processing module, wherein the first seal head 100 and the second seal head 200 are arranged oppositely, the pressure measuring part is arranged between the first seal head 100 and the second seal head 200, the pressure measuring part 300 is used for acquiring a pressure line when the first seal head 100 and the second seal head 200 are extruded, the output end of the acquisition module is connected with the input end of the processing module, and the output end of the processing module is used for being connected with a detection system; the acquisition module is configured to acquire a pressure line image of the pressure measurement part 300, where the pressure line image is an image formed by clamping the pressure measurement part 300 by the first seal head 100 and the second seal head 200; sequentially acquiring brightness values of a plurality of extrusion areas according to the pressure line image and along a direction parallel to the pressure line, wherein the pressure line image is formed by the images of the extrusion areas; and the processing module is used for correspondingly acquiring a pressure value according to the brightness value and sending the pressure value to the detection system.
In this embodiment, the first sealing head 100 and the second sealing head 200 are mutually squeezed, and the pressure measurement member 300 is clamped and clamped between the first sealing head and the second sealing head, the brightness of a pressure line left after the sealing head squeezes the pressure measurement member 300 is obtained through the acquisition module, the pressure is converted in a brightness value mode, the processing module correspondingly converts the brightness value into a pressure value again, the brightness on the pressure line correspondingly represents the pressure of each position of the sealing head, and therefore the pressure of the sealing head during squeezing and the pressure distribution condition are accurately obtained.
In one embodiment, the first head 100 has a first pressing surface 110, the second head 200 has a second pressing surface 210, the first pressing surface 110 and the second pressing surface 210 are respectively pressed on two sides of the pressure measuring member 300, and the pressure measuring member 300 is parallel to at least one of the first pressing surface 110 and the second pressing surface 210. In this embodiment, the pressure measuring unit 300 is disposed between the first sealing head 100 and the second sealing head 200, and the first sealing head 100 and the second sealing head 200 move towards each other to achieve a mutual pressing state, so that the first sealing head 100 and the second sealing head 200 respectively press the pressure measuring unit 300, that is, two side surfaces of the pressure measuring unit 300 are respectively pressed by the first sealing head 100 and the second sealing head 200, that is, the first sealing head 100 presses the second sealing head 200 through the pressure measuring unit 300, that is, the second sealing head 200 presses the first sealing head 100 through the pressure measuring unit 300. The first pressing surface 110 is a pressing surface on the first seal head 100, the second pressing surface 210 is a pressing surface on the second seal head 200, and at least one of the first pressing surface 110 and the second pressing surface 210 is parallel to the pressure measurement member 300, so that when the first seal head 100 and the second seal head 200 are pressed against each other, at least one of the first pressing surface 110 and the second pressing surface 210 is used as a standard supporting surface on the pressure measurement member 300, and an accurate pressure line image is conveniently formed on the pressure measurement member 300. Thus, when the first seal head 100 and the second seal head 200 are not parallel, a pressure line image can still be extruded on the pressure measuring part 300, so that the mutual extrusion acting force of the first seal head 100 and the second seal head 200 can be reflected on the pressure measuring part 300 in the form of a pressure line image, and the pressure line image is conveniently formed on the pressure measuring part 300.
In one embodiment, the first pressing surface is parallel to the pressure measurement member. In one embodiment, the second pressing surface is parallel to the pressure measuring member. In one embodiment, the first pressing surface and the second pressing surface are each parallel to the pressure measuring member.
In one embodiment, the pressure measuring member 300 is disposed on the second pressing surface 210. In this embodiment, since the first sealing head 100 and the second sealing head 200 are used for extruding the pressure measuring part 300, in order to form a pressure line image on the pressure measuring part 300, the pressure measuring part 300 is disposed on the second extrusion surface 210, that is, the pressure measuring part 300 is disposed on a surface of the second sealing head 200 close to the first sealing head 100. In this way, the second pressing surface 210 and the pressure measuring part 300 are parallel to each other, so that the second pressing surface 210 serves as a supporting surface for pressing, when the first sealing head 100 presses the pressure measuring part 300, the second pressing surface 210 provides supporting force for each position of the pressure measuring part 300, and thus at least part of the first sealing head 100 presses the pressure measuring part 300, and the pressure line image is formed on the pressure measuring part 300.
In one embodiment, the pressure measuring member is disposed on the first pressing surface. The function is similar to the above embodiments, and the description is omitted here.
In one embodiment, the first sealing head 100 includes a first receiving portion 120 and a first pressing portion 130, the first receiving portion 120 is connected to a side of the first pressing portion 130 away from the second sealing head 200, and a side of the first pressing portion 130 close to the second sealing head 200 presses on the pressure measuring part 300. In this embodiment, the first receiving portion 120 is used to connect a driving component, that is, the driving component drives the first receiving portion 120 to move, for example, the driving component drives the first receiving portion 120 to move close to the pressure measuring part 300, and as another example, the driving component drives the first receiving portion 120 to move away from the pressure measuring part 300, so that the driving component drives the first pressing portion 130 to move through the first receiving portion 120, and thus the first pressing portion 130 moves close to or away from the pressure measuring part 300. In the process that the first pressing portion 130 is close to the pressure measuring part 300, a pressing surface on the first pressing portion 130, that is, the first pressing surface 110, is disposed on a side of the first pressing portion 130 away from the first receiving portion 120 and is used for pressing the pressure measuring part 300, so that in the process that the driving part drives the first receiving portion 120 to be close to the pressure measuring part 300, the driving part drives the first pressing portion 130 to be close to the pressure measuring part 300, and thus the first pressing surface 110 on the first pressing portion 130 is close to the pressure measuring part 300, and further, the pressing of the pressure measuring part 300 is facilitated.
In one embodiment, at least one first groove 132 is formed on one side of the first pressing portion 130 close to the second sealing head 200, and an opening of the first groove 132 faces the second sealing head 200. In this embodiment, since the first pressing portion 130 is used for pressing the pressure measuring member 300, during the pressing process, when the first pressing surface 110 of the first pressing portion 130 is completely pressed on the pressure measuring member 300, that is, the first pressing surface 110 is pressed on the pressure measuring member 300 in parallel, so that the pressure of the first pressing portion 130 and the pressure measuring member 300 at the contact position is less than the external atmospheric pressure, that is, the pressure between the first pressing portion 130 and the pressure measuring member 300 is less than the atmospheric pressure, that is, the pressure between the first pressing portion 130 and the pressure measuring member 300 is excessively tight, so that the first pressing portion 130 is far away from the second sealing head 200, it is easy to cause a part of the pressure measuring member 300 to adhere to the first pressing portion 130, thereby causing the pressure measuring member 300 to be damaged. In order to reduce the occurrence probability of the above situation, the first groove 132 is disposed on the first pressing portion 130, and the opening of the first groove 132 faces the second sealing head 200, so that a gap exists between the first pressing portion 130 and the pressure measuring member 300, and the probability of over-tightness between the first pressing portion 130 and the pressure measuring member 300 is reduced, so that when the first pressing portion 130 is far away from the second sealing head 200, the pressure measuring member 300 is conveniently separated from the first pressing portion 130, the probability of damage to the pressure measuring member 300 due to tearing of the first pressing portion 130 is reduced, and the service lives of the first sealing head 100 and the pressure measuring member 300 are prolonged.
In one embodiment, the first receiving portion 120 is formed with a connecting hole 122, and the connecting hole 122 is used for placing a driving member to drive the first sealing head 100 to move. In this embodiment, the driving member is disposed in the connecting hole 122, and the driving member abuts against a side wall of the connecting hole 122, so that the driving member drives the first receiving portion 120 to move in the moving process, so as to move the first sealing head 100. In this way, the driving rod drives the first sealing head 100 to move by being arranged in the connecting hole 122, so that the driving rod and the first sealing head 100 are detachably connected, and thus, when the first sealing head 100 and the driving rod are replaceable, for example, when the first sealing head 100 is damaged, the driving member is removed from the connecting hole 122, thereby facilitating the replacement of the first sealing head 100; as another example, in the event of damage to the drive member, the drive member is removed from the connection hole 122, i.e., the drive member is separated from the first head 100, thereby facilitating replacement of the drive member.
In one embodiment, the first receiving portion 120 and the first pressing portion 130 are disposed perpendicular to each other. In this embodiment, the first receiving portion 120 is configured to be connected to a driving member, the driving member drives the first extruding portion 130 to move through the first receiving portion 120, and a relative position relationship between the first receiving portion 120 and the first extruding portion 130 determines an extruding tightness of the first extruding portion 130 to the pressure measuring part 300 during the moving process. The first receiving portion 120 and the first pressing portion 130 are perpendicular to each other, that is, a "T" shaped structure is formed between the first receiving portion 120 and the first pressing portion 130, for example, one end of the first pressing portion 130, which is away from the second sealing head 200, is connected to one surface of the first receiving portion 120, so that the end of the first pressing portion 130 faces the second sealing head 200, that is, the end of the first pressing portion 130 faces the pressure measuring member 300, so that the pressing pressure of the first pressing portion 130 on the pressure measuring member 300 is increased under the action of the same pressure, and further the pressing tightness between the first pressing portion 130 and the pressure measuring member 300 is improved, and the first pressing portion 130 is conveniently pressed on the pressure measuring member 300.
In one embodiment, the second sealing head 200 includes a second receiving portion 220 and a second pressing portion 230, the second receiving portion 220 is connected to a side of the second pressing portion 230 away from the first sealing head 100, and a side of the second pressing portion 230 close to the first sealing head 100 presses on the pressure measuring part 300. In this embodiment, the second receiving portion 220 is used to connect a driving component, that is, the driving component drives the second receiving portion 220 to move, for example, the driving component drives the second receiving portion 220 to move close to the pressure measuring part 300, and for example, the driving component drives the second receiving portion 220 to move away from the pressure measuring part 300, so that the driving component drives the second pressing portion 230 to move through the second receiving portion 220, and thus the second pressing portion 230 moves close to or away from the pressure measuring part 300. In the process that the second pressing portion 230 is close to the pressure measuring part 300, a pressing surface on the second pressing portion 230, that is, the second pressing surface 210, is disposed on a side of the second pressing portion 230 away from the second receiving portion 220 and is used for pressing the pressure measuring part 300, so that in the process that the driving part drives the second receiving portion 220 to be close to the pressure measuring part 300, the second pressing portion 230 is driven to be close to the pressure measuring part 300, and thus the second pressing surface 210 on the second pressing portion 230 is close to the pressure measuring part 300, and further, the pressing of the pressure measuring part 300 is facilitated.
In one embodiment, at least one second groove 232 is formed on one side of the second pressing portion 230 close to the first sealing head 100, and an opening of the second groove 232 faces the first sealing head 100. In this embodiment, since the second pressing portion 230 is used for pressing the pressure measuring member 300, during the pressing process, when the second pressing surface 210 of the second pressing portion 230 is completely pressed on the pressure measuring member 300, that is, the second pressing surface 210 is pressed on the pressure measuring member 300 in parallel, so that the pressure of the second pressing portion 230 and the pressure measuring member 300 at the contact position is less than the external atmospheric pressure, that is, the pressure between the second pressing portion 230 and the pressure measuring member 300 is less than the atmospheric pressure, that is, the pressure between the second pressing portion 230 and the pressure measuring member 300 is excessively tight, so that the second pressing portion 230 is far away from the first sealing head 100, it is easy to cause a part of the pressure measuring member 300 to adhere to the second pressing portion 230, thereby causing the pressure measuring member 300 to be damaged. In order to reduce the occurrence probability of the above situation, the second groove 232 is disposed on the second pressing portion 230, and the opening of the second groove 232 faces the first sealing head 100, so that a gap exists between the second pressing portion 230 and the pressure measuring member 300, and the probability of over-tightness between the second pressing portion 230 and the pressure measuring member 300 is reduced, thereby facilitating the separation of the pressure measuring member 300 from the second pressing portion 230 when the second pressing portion 230 is far away from the first sealing head 100, reducing the probability of damage of the pressure measuring member 300 due to the tearing of the second pressing portion 230, and prolonging the service life of the second sealing head 200 and the pressure measuring member 300.
In one embodiment, a heat sealing machine is provided, which includes a mounting base and the sealing head pressure detection device described in any of the above embodiments, and the sealing head pressure detection device is mounted on the mounting base. In this embodiment, head pressure measurement is fixed in on the mounting base, acquire the luminance of the pressure line that leaves behind the head extrusion pressure measurement spare through collection module, convert pressure with the mode of luminance value, processing module again with luminance value correspondence conversion to the pressure value for luminance correspondence on the pressure line represents the pressure size of each position of head, thereby accurately acquires the pressure size of head when the extrusion, and the pressure distribution condition.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A seal head pressure detection method is characterized by comprising the following steps:
acquiring a pressure line image of the pressure measurement piece, wherein the pressure line image is an image formed by clamping the pressure measurement piece by a first seal head and a second seal head;
sequentially acquiring brightness values of a plurality of extrusion areas according to the pressure line image and along a direction parallel to the pressure line, wherein the pressure line image is formed by the images of the extrusion areas;
and correspondingly acquiring a pressure value according to the brightness value, and sending the pressure value to a detection system.
2. A head pressure detection method according to claim 1, wherein the acquiring of the pressure line image of the pressure measurement member comprises:
scanning the pressure measurement piece along a preset direction, and acquiring a color value distribution image of the pressure measurement piece;
and acquiring the pressure line image according to the color value distribution image.
3. A head pressure detection method according to claim 2, wherein the obtaining the pressure line image according to the color value distribution image comprises:
acquiring color values to be detected of a plurality of image areas according to the color value distribution image;
detecting whether the color value to be detected is matched with a preset color value or not;
when the color value to be detected is matched with the preset color value, acquiring a position parameter of an image area corresponding to the color value to be detected;
and forming the pressure line image according to the position parameters of the image area.
4. A seal head pressure detection method according to claim 3, wherein the detecting whether the color value to be detected is matched with a preset color value comprises:
detecting whether the color value to be detected is larger than the preset color value or not;
when the color value to be measured is matched with the preset color value, the position parameter of the image area corresponding to the color value to be measured is obtained, and the method comprises the following steps:
and when the color value to be detected is larger than the preset color value, acquiring the position parameter of the image area corresponding to the brightness value to be detected.
5. A head pressure detection method according to claim 1, wherein the acquiring of the pressure line image of the pressure measurement member further comprises:
driving the first seal head and the second seal head to move towards the pressure measuring part;
and driving the first sealing head and the second sealing head to respectively extrude two side surfaces of the pressure measuring piece within a preset time.
6. A seal head pressure detection method according to claim 5, characterized in that the preset time is 1-8 seconds.
7. A seal head pressure detection method according to claim 6, characterized in that the preset time is 5 seconds.
8. A head pressure detection method according to claim 1, wherein the obtaining of the pressure value according to the brightness value and the sending of the pressure value to a detection system further comprises:
detecting whether the brightness values of any two extrusion areas are equal or not;
and when the brightness values of any two extrusion areas are equal, sending a normal seal head signal to the detection system.
9. A head pressure detecting method according to claim 8, wherein the detecting whether the brightness values of any two of the pressing areas are equal further comprises:
and when the brightness values of any two extrusion areas are not equal, sending an end socket abnormal signal to the detection system.
10. A seal head pressure detection device is characterized by comprising a first seal head, a second seal head, a pressure measurement piece, an acquisition module and a processing module, wherein the first seal head and the second seal head are oppositely arranged, the pressure measurement piece is arranged between the first seal head and the second seal head and is used for acquiring a pressure line when the first seal head and the second seal head are extruded, the output end of the acquisition module is connected with the input end of the processing module, and the output end of the processing module is used for being connected with a detection system;
the acquisition module is used for acquiring a pressure line image of the pressure measurement piece, wherein the pressure line image is an image formed by clamping the pressure measurement piece by a first seal head and a second seal head; sequentially acquiring brightness values of a plurality of extrusion areas according to the pressure line image and along a direction parallel to the pressure line, wherein the pressure line image is formed by the images of the extrusion areas;
and the processing module is used for correspondingly acquiring a pressure value according to the brightness value and sending the pressure value to the detection system.
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| CN202010537987.6A CN111637995A (en) | 2020-06-12 | 2020-06-12 | End socket pressure detection method and device |
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| CN202010537987.6A CN111637995A (en) | 2020-06-12 | 2020-06-12 | End socket pressure detection method and device |
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Effective date of registration: 20240826 Address after: 1712, Building B, 17th Floor, 103 Huizhongli, Chaoyang District, Beijing 100101 Applicant after: Yilong Energy (Beijing) Co.,Ltd. Country or region after: China Address before: 341003 office building, Jinlong Road, North Park, Hong Kong Industrial Park, Ganzhou economic and Technological Development Zone, Ganzhou City, Jiangxi Province Applicant before: Ganzhou Yipeng Energy Technology Co.,Ltd. Country or region before: China |