CN113176138A - Device and method for detecting firmness degree of welding spots of ear band of mask - Google Patents
Device and method for detecting firmness degree of welding spots of ear band of mask Download PDFInfo
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- CN113176138A CN113176138A CN202110587292.3A CN202110587292A CN113176138A CN 113176138 A CN113176138 A CN 113176138A CN 202110587292 A CN202110587292 A CN 202110587292A CN 113176138 A CN113176138 A CN 113176138A
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- 238000003466 welding Methods 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000001514 detection method Methods 0.000 claims abstract description 21
- 230000000712 assembly Effects 0.000 claims abstract description 10
- 238000000429 assembly Methods 0.000 claims abstract description 10
- 238000003825 pressing Methods 0.000 claims description 7
- 239000013307 optical fiber Substances 0.000 claims description 3
- 229910000679 solder Inorganic materials 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/04—Chucks
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
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Abstract
The invention provides a device and a method for detecting the firmness degree of welding points of ear straps of a mask, which comprises two groups of mechanical traction devices which are symmetrically arranged on the same straight line, wherein each group of mechanical traction devices consists of a traction assembly and a tension detector, and the traction assemblies can move towards two sides which are separated from each other under the pulling of the tension detector; the device also comprises two sensors capable of detecting objects, wherein the two sensors are positioned between the two pulling components. According to the device and the method for detecting the firmness degree of the welding spot of the ear band of the mask, the ear band is pulled through the tension detector, and whether the ear band is broken or not is sensed in a photoelectric detection mode, so that the tensile strength and the firmness degree of the welding spot of the ear band are synchronously detected, and the detection efficiency and the product quality are improved; the principle and the structure are simple, and a low-cost photoelectric sensor is adopted for detection, so that the equipment cost is greatly saved.
Description
Technical Field
The invention belongs to the technical field of automatic mask production, and particularly relates to a device and a method for detecting the firmness degree of welding spots of ear bands of a mask.
Background
The automatic detection of the ear belt is a new emerging direction of a mask production line, and aims to ensure that welding points of the ear belt of masks produced in the same batch are firm and consistent in length. Most of ear belt detection in the current market adopts a manual sampling detection mode, and weights are used for detecting the tensile strength of the ear belt and the firmness degree of a welding spot. The method for manually detecting the mask ear belt has the advantages of non-uniform standard, low accuracy of detection results and low efficiency.
In the market, a small part of detection modes for judging the length of an object in a visual detection mode are also adopted, and the used equipment is a camera connected with a computer. The position of the ear belt is captured through computer software, and the length of the ear belt is calculated through a visual algorithm.
Disclosure of Invention
In view of the above, the present invention aims to overcome the defects in the prior art, and provides a device for detecting the firmness of welding points of ear bands of a mask, wherein the ear bands are pulled by a tension detector, and whether the ear bands are broken is sensed in a photoelectric detection manner, so that the tensile strength and the welding point firmness of the ear bands are synchronously detected, and the detection efficiency and the product quality are improved.
The invention also aims to provide a method for detecting the firmness degree of the welding points of the ear bands of the mask.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
a device for detecting the firmness degree of welding points of ear straps of a mask comprises two groups of mechanical traction devices which are symmetrically arranged on the same straight line, wherein each group of mechanical traction devices consists of a traction assembly and a tension detector, and the traction assemblies can move towards two sides which are separated from each other under the pulling of the tension detector;
the device also comprises two sensors capable of detecting objects, wherein the two sensors are positioned between the two pulling components.
Furthermore, the drawing device also comprises a guide rod, wherein the guide rod is inserted in the drawing component in a sliding mode, and the drawing component moves along the length direction of the guide rod.
Furthermore, the traction assembly comprises sliding blocks and hooks which are fixedly assembled together, and clamping grooves are formed in the opposite sides of the hooks arranged on the two sliding blocks;
preferably, the clamping groove is an arc-shaped groove.
Furthermore, the traction assembly also comprises an assembly plate, the hook is fixed on the assembly plate, and the assembly plate is assembled and fixed with the sliding block;
preferably, the assembling plate is provided with an assembling hole, the sliding block is provided with a threaded hole, and the assembling plate is assembled and fixed with the sliding block through a bolt or a screw;
preferably, the fitting hole is a long hole extending in a moving direction of the slider.
Further, the sensor is a photoelectric sensor, an ultrasonic sensor, a correlation type sensor, a reflection type sensor or an optical fiber sensor;
preferably, the sensor is a photoelectric sensor;
the irradiation direction of the sensor is vertical irradiation, horizontal irradiation or irradiation with a certain angle.
Further, the sensor is adjacent to the pulling assembly;
the sensor is fixedly assembled on the traction assembly through a fixing frame.
Further, the pulling structure is a flexible pulling belt.
Furthermore, the device also comprises a pressing block and a bearing block, wherein the pressing block and the bearing block are opposite in position and are positioned in the middle of the two groups of mechanical traction assemblies.
A method for detecting the firmness degree of welding points of ear bands of a mask comprises the following steps:
step 1: respectively hooking two hangers of the mask on the two traction assemblies;
step 2: pulling the two tension detection meters to move in the opposite direction for a specific distance, and reading the tension value;
and step 3: under the specific distance, if the two sensors sense the ear bands, the ear bands of the mask are judged to be qualified; if one sensor senses the ear belt, the ear belt welding spot on the side without the signal falls off, and the mask is judged to be unqualified; if the two sensors do not sense the ear belts, the ear belts on the two sides of the mask fall off, and the mask is judged to be unqualified.
Further, in the step 1, the mask is placed on the bearing block, and then the pressing block is placed on the mask.
Compared with the prior art, the invention has the beneficial effects that:
(1) according to the device and the method for detecting the firmness degree of the welding spots of the ear band of the mask, the ear band is pulled through the tension detector, whether the ear band is broken is sensed in a photoelectric detection mode, the tensile strength and the welding spot firmness of the ear band are synchronously detected, and the detection efficiency and the product quality are improved.
(2) The device and the method for detecting the firmness degree of the welding spots of the ear belt of the mask are simple in principle and structure, and adopt the photoelectric sensor with low price for detection, so that the equipment cost is greatly saved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic top view of a device for detecting the firmness of welding points of ear bands of a mask according to the present invention;
FIG. 2 is a schematic side view of a device for detecting the firmness of welding points of ear bands of a mask according to the present invention;
FIG. 3 is an enlarged view of portion A of FIG. 2;
FIG. 4 is a schematic diagram of a qualified mask inspection state of the apparatus for inspecting the firmness of the welding spots of the ear band of the mask according to the present invention;
fig. 5 is a schematic diagram of an unqualified mask detection state of the device for detecting the firmness degree of the welding spots of the ear bands of the mask.
Description of reference numerals:
1-a slide block; 11-a threaded hole; 2-assembling a plate; 21-assembly holes; 22-graduation; 3-hooking; 31-a card slot; 4-a linear bearing; 5-a guide rod; 51-fixing block; 6-a tension detector; 61-a traction belt; 7-a sensor; 71-a fixing frame; 8-briquetting; 9-a support block; 10-mask; 101-ear band.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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 meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The invention will be described in detail below with reference to the following examples with reference to the attached drawings:
as shown in fig. 1 to 5, the present embodiment provides a device for detecting a firmness degree of an ear strap welding point of a mask, including two sets of mechanical pulling devices symmetrically arranged on a same straight line, where each set of mechanical pulling device is composed of a pulling assembly and a tension detector 6, and the pulling assembly can move towards two sides away from each other under the pulling of the tension detector 6; two sensors 7 capable of detecting objects are also included, the two sensors 7 being located between the two pulling assemblies, and the sensors 7 moving synchronously with the mechanical pulling assemblies.
When in use, the ear belt 101 of the mask 10 is hooked on the two pulling components, then the two pulling force detectors 6 are moved in opposite directions, and after the certain distance is moved, the ear belt 101 of the mask 10 is detected whether to be in the monitoring range through the sensing signal of the sensor 7: if the welding point of the ear belt 101 of the mask 10 is not broken, the two sensors 7 both have feedback signals, and the mask 10 can bear the tensile strength and belongs to a qualified product; if the welding point of the ear belt 101 of the mask 10 is broken, the broken ear belt 101 deviates from the sensing range of the sensor 7, the sensor 7 on the side has no feedback signal, and the mask 10 belongs to a defective product.
According to the device for detecting the firmness degree of the welding points of the ear band of the mask, the ear band 101 is pulled through the tension detector 6, and whether the ear band 101 is broken or not is sensed in a photoelectric detection mode, so that the tensile strength and the welding point firmness of the ear band 101 are synchronously detected, and the detection efficiency and the product quality are improved; the principle and the structure are simple, the photoelectric sensor 7 with low price is adopted for detection, and the equipment cost is greatly saved.
Specifically, the device for detecting the firmness degree of the welding points of the ear straps of the mask provided by the embodiment further comprises guide rods 5, the guide rods 5 are inserted into the pulling assemblies in a sliding manner, two guide rods 5 are inserted into each pulling assembly, and the pulling assemblies move along the length direction of the guide rods 5; the two ends of the guide rod 5 are provided with fixing blocks 51 for positioning the guide rod; a linear bearing 4 is arranged in the sliding block 1 and used for reducing the friction force between the sliding block 1 and the guide rod 5, and the guide rod 5 is inserted in the linear bearing 4.
In this embodiment, the pulling assembly comprises a slider 1 and a hook 3 which are fixedly assembled together, and the opposite sides of the hook 3 arranged on the two sliders 1 are respectively provided with a clamping groove 31 to prevent the ear belt 101 from slipping off the hook 3; and the clamping groove 31 is an arc-shaped groove, so that the ear belt 101 can be conveniently separated when being taken.
Furthermore, the mechanical traction assembly also comprises an assembly plate 2, the hook 3 is fixed on the assembly plate 2, and the assembly plate 2 is assembled and fixed with the sliding block 1; specifically, an assembly hole 21 is formed in the assembly plate 2, a threaded hole 11 is formed in the slider 1, and the assembly plate 2 is assembled and fixed with the slider 1 through a bolt or a screw; the fitting hole 21 is provided as a long hole extending in the moving direction of the slider 1, through which the fixing positions of the fitting plate 2 and the hook 3 can be adjusted.
In this embodiment, the sensor 7 may be a photoelectric sensor 7, an ultrasonic sensor 7, a correlation sensor 7, a reflection sensor 7, an optical fiber sensor 7, or other sensors 7 that can be used to detect an object, and in this embodiment, the photoelectric sensor 7 is preferably selected, and the specific model is the FU25 type photoelectric sensor 7 of keyence; the irradiation direction of the sensor 7 can be vertical irradiation, horizontal irradiation or irradiation with a certain angle, so as to irradiate the ear belt 101; the sensor 7 is close to the pulling assembly, so that misjudgment of the broken ear belt 101 is avoided; the sensor 7 is fixedly assembled on the pulling component through a fixing frame 71, and the assembly mode is an existing detachable assembly mode.
In this embodiment, the pulling structure is a flexible pulling strap 61; specifically, the belt is selected as the traction belt 61, has certain elasticity, can provide certain buffering effect for stretching of the ear belt 101, and reduces damage to the ear belt 101.
The device of the firm degree of detection gauze mask ear area solder joint that this embodiment provided still includes briquetting 8 and bearing piece 9, and this briquetting 8 is relative with the position of bearing piece 9, is located the intermediate position of two sets of mechanical tractive subassemblies, and during the use, gauze mask 10 is located between bearing piece 9 and the briquetting 8, compresses tightly the location to gauze mask 10 by briquetting 8, avoids gauze mask 10 to pop out when ear area 101 splits.
The embodiment also provides a method for detecting the firmness degree of the welding points of the ear bands of the mask, which comprises the following steps:
step 1: the two hangers of the mask 10 are respectively hooked on the hooks 3 arranged on the two traction components;
step 2: pulling the two tension detectors 6 to move a specific distance in the opposite direction, and reading the tension value;
and step 3: if the two sensors 7 sense the ear bands 101 at the specific distance, the ear bands 101 of the mask 10 are judged to be qualified; if one sensor 7 senses the ear belt 101, the welding spot of the ear belt 101 on the side without the signal falls off, and the mask 10 is judged to be unqualified; if the two sensors 7 do not sense the ear bands 101, the ear bands 101 on both sides of the mask 10 fall off, and the mask 10 is determined to be unqualified.
Further, in the step 1, the mask 10 is placed on the supporting block 9, and then the pressing block is placed on the mask 10, so that the mask 10 is prevented from popping up when the ear belt 101 is broken.
Note: the fixing manner described herein is, if not specifically stated, a conventional fixing manner such as a screw connection, a welding, an adhesion, etc. may be used.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. The utility model provides a detect device of gauze mask ear area solder joint firm degree which characterized in that: the device comprises two groups of mechanical traction devices symmetrically arranged on the same straight line, wherein each group of mechanical traction devices consists of a traction assembly and a tension detector (6), and the traction assemblies can move towards two sides which are separated from each other under the pulling of the tension detector (6);
the device also comprises two sensors (7) capable of detecting objects, wherein the two sensors (7) are positioned between the two pulling components.
2. The device for detecting the firmness degree of the welding points of the ear band of the mask according to claim 1, wherein: the drawing device is characterized by further comprising a guide rod (5), wherein the guide rod (5) is inserted into the drawing assembly in a sliding mode, and the drawing assembly moves along the length direction of the guide rod (5).
3. The device for detecting the firmness degree of the welding points of the ear band of the mask according to claim 1, wherein: the traction assembly comprises sliding blocks (1) and hooks (3) which are fixedly assembled together, and clamping grooves (31) are formed in the opposite sides of the hooks (3) arranged on the two sliding blocks (1);
preferably, the clamping groove (31) is an arc-shaped groove.
4. The device for detecting the firmness degree of the welding points of the ear band of the mask according to claim 3, wherein: the traction assembly further comprises an assembly plate (2), the hook (3) is fixed on the assembly plate (2), and the assembly plate (2) is assembled and fixed with the sliding block (1);
preferably, the assembling plate (2) is provided with an assembling hole (21), the sliding block (1) is provided with a threaded hole (11), and the assembling plate (2) is assembled and fixed with the sliding block (1) through a bolt or a screw;
preferably, the fitting hole (21) is a long hole extending in the moving direction of the slider (1).
5. The device for detecting the firmness degree of the welding points of the ear band of the mask according to claim 1, wherein: the sensor (7) is a photoelectric sensor (7), an ultrasonic sensor (7), a correlation type sensor (7), a reflection type sensor (7) or an optical fiber sensor (7);
preferably, the sensor (7) is a photoelectric sensor (7);
the irradiation direction of the sensor (7) is vertical irradiation, horizontal irradiation or irradiation with a certain angle.
6. The device for detecting the firmness degree of the welding points of the ear band of the mask according to claim 1, wherein: the sensor (7) is adjacent to the pulling assembly;
the sensor (7) is fixedly assembled on the pulling component through a fixing frame (71).
7. The device for detecting the firmness degree of the welding points of the ear band of the mask according to claim 1, wherein: the pulling structure is a flexible pulling belt (61).
8. The device for detecting the firmness degree of the welding points of the ear band of the mask according to claim 1, wherein: the mechanical drawing device is characterized by further comprising a pressing block (8) and a bearing block (9), wherein the pressing block (8) and the bearing block (9) are opposite in position and located in the middle of the two groups of mechanical drawing assemblies.
9. A method for detecting the firmness of the welding points of the ear bands of the mask by applying the device according to any one of claims 1 to 8, wherein the method comprises the following steps: the method comprises the following steps:
step 1: the two hangers of the mask (10) are respectively hooked on the two traction components;
step 2: pulling the two tension detection meters (6) to move in the opposite directions for a specific distance, and reading the tension value;
and step 3: under the specific distance, if the two sensors (7) sense the ear bands (101), judging that the ear bands (101) of the mask (10) are qualified; if one sensor (7) senses the ear belt (101), the welding spot of the ear belt (101) on the side without the signal falls off, and the mask (10) is judged to be unqualified; if the two sensors (7) do not sense the ear belts (101), the ear belts (101) on the two sides of the mask (10) fall off, and the mask (10) is judged to be unqualified.
10. The method for detecting the firmness degree of the welding points of the ear bands of the mask as claimed in claim 9, wherein the method comprises the following steps: in the step 1, the mask (10) is placed on a bearing block (9), and then a pressing block (8) is placed on the mask (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110587292.3A CN113176138A (en) | 2021-05-27 | 2021-05-27 | Device and method for detecting firmness degree of welding spots of ear band of mask |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110587292.3A CN113176138A (en) | 2021-05-27 | 2021-05-27 | Device and method for detecting firmness degree of welding spots of ear band of mask |
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| CN113176138A true CN113176138A (en) | 2021-07-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110587292.3A Pending CN113176138A (en) | 2021-05-27 | 2021-05-27 | Device and method for detecting firmness degree of welding spots of ear band of mask |
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| CN (1) | CN113176138A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116818534A (en) * | 2023-08-30 | 2023-09-29 | 江铃汽车股份有限公司 | Wave soldering quality detection method and device |
| WO2024103585A1 (en) * | 2022-11-15 | 2024-05-23 | 安徽金牛药械股份有限公司 | Ear loop crimping and detection device for antibacterial c-shaped face mask production |
-
2021
- 2021-05-27 CN CN202110587292.3A patent/CN113176138A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024103585A1 (en) * | 2022-11-15 | 2024-05-23 | 安徽金牛药械股份有限公司 | Ear loop crimping and detection device for antibacterial c-shaped face mask production |
| CN116818534A (en) * | 2023-08-30 | 2023-09-29 | 江铃汽车股份有限公司 | Wave soldering quality detection method and device |
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Effective date of registration: 20240701 Address after: No. 30 Yonghe Road, High end Park, Economic and Technological Development Zone, Beichen District, Tianjin, 300400 Applicant after: Tianjin Changrong Health Technology Co.,Ltd. Country or region after: China Address before: 300400 Beichen Science and Technology Industrial Park, New Technology Industrial Park, Beichen District, Tianjin Applicant before: Masterwork Group Co.,Ltd. Country or region before: China |