CN113466966B - Automatic correction metal detection device - Google Patents
Automatic correction metal detection device Download PDFInfo
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- CN113466966B CN113466966B CN202110880974.3A CN202110880974A CN113466966B CN 113466966 B CN113466966 B CN 113466966B CN 202110880974 A CN202110880974 A CN 202110880974A CN 113466966 B CN113466966 B CN 113466966B
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- 238000001514 detection method Methods 0.000 title claims abstract description 101
- 239000002184 metal Substances 0.000 title claims abstract description 54
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 54
- 238000012360 testing method Methods 0.000 claims abstract description 110
- 229910001220 stainless steel Inorganic materials 0.000 claims description 12
- 239000010935 stainless steel Substances 0.000 claims description 12
- 239000002699 waste material Substances 0.000 claims 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 18
- 229910052742 iron Inorganic materials 0.000 description 9
- 230000001360 synchronised effect Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000012790 confirmation Methods 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V13/00—Manufacturing, calibrating, cleaning, or repairing instruments or devices covered by groups G01V1/00 – G01V11/00
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
- G01V3/08—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices
- G01V3/10—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices using induction coils
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Geophysics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- Remote Sensing (AREA)
- Manufacturing & Machinery (AREA)
- Electromagnetism (AREA)
- Environmental & Geological Engineering (AREA)
- Geology (AREA)
- Geophysics And Detection Of Objects (AREA)
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
- Control Of Conveyors (AREA)
Abstract
The invention relates to an automatic correction metal detection device capable of automatically testing a metal detection device and improving the detection accuracy and reliability of the metal detection device, which comprises a frame, a control device, a detector, a first conveying device and at least one second conveying device, wherein the control device, the detector, the first conveying device and the at least one second conveying device are arranged on the frame, the detector is provided with a detection area, a first conveying belt which continuously moves is arranged on the first conveying device, the first conveying belt extends to a longitudinal direction along the conveying direction of the first conveying belt and extends to a transverse direction along the width direction of the first conveying belt, the second conveying device is provided with a second conveying belt which continuously moves, at least one test piece for testing the detector is arranged on the second conveying belt at intervals along the conveying direction of the second conveying belt, and the detection area covers the transverse area of the first conveying belt and the transverse area of the second conveying belt, and the control device is respectively electrically connected with the detector, the first conveying device and the second conveying device.
Description
Technical Field
The invention relates to an automatic correction metal detection device.
Background
The metal detection device is an instrument for detecting metal by applying an electromagnetic induction principle. In general, a metal detection device is composed of two parts, namely a metal detector and an automatic rejecting device, wherein the detector is a core part. Three groups of coils, namely a central transmitting coil and two equivalent receiving coils, are distributed in the detector, a high-frequency variable magnetic field is generated through an oscillator connected with the middle transmitting coil, and the induced voltages of the receiving coils at two sides are mutually counteracted before the magnetic field is not interfered in an idle state to reach an equilibrium state. Once metal impurities enter the magnetic field area, the magnetic field is disturbed, the balance is broken, the induced voltages of the two receiving coils cannot be counteracted, the non-counteracted induced voltages are amplified by the control system, and an alarm signal is generated. During the production of diapers, it is often necessary to use a metal detection device for detection.
The structure of the metal detection device of the existing disposable sanitary articles such as paper diapers, sanitary napkins, pull-up pants and the like, such as Chinese patent application number: 201921907778.5, which comprises a frame, wherein a metal detection device is fixed on the frame, a synchronous belt penetrates through the metal detection device, the synchronous belt comprises two horizontally arranged driven shafts and one driving shaft below the two driven shafts, the synchronous belt is sleeved on the two driven shafts and the one driving shaft, and when the metal detection device is used, packaged products are placed on the synchronous belt and conveyed through a detection area of the metal detection device to realize detection; however, the metal detection equipment is selectively detected, and electronic elements are unstable to control, so that the problems of detection errors and missed detection are easy to occur, and small influence is caused to manufacturers, so that most manufacturers specify that the metal detection device is required to be tested and corrected under the conditions of switching on and switching off the metal detection device and operating for one hour at intervals, and the problems caused by the defects of the metal detection device are reduced; however, the test mode is to stop conveying the product, and the test product is manually conveyed and transferred onto the conveying belt for multiple tests, so that the test is complicated, the workload of the detection personnel is increased, the manual detection mode does not form a forced direction requirement, and if the inertia of the detection personnel is high, the corresponding detection and correction procedures are left, so that the problems of detection errors and detection omission are easy to occur.
Disclosure of Invention
Accordingly, in view of the above-described problems, the present invention provides an automatic calibration metal detection device capable of automatically testing a metal detection device and improving the detection accuracy and reliability of the metal detection device.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the utility model provides an automatic correction metal detection device, includes the frame, locates controlling means, detector, first conveyor, at least one second conveyor in the frame, the detector has a detection zone, first conveyor has a continuous motion's first conveyer belt on the first conveyor, and the definition extends to longitudinal direction along first conveyer belt's direction of delivery, extends to transverse direction along its width direction, second conveyor has a continuous motion's second conveyer belt on, second conveyer belt is equipped with at least one test piece that is used for testing the detector along its direction of delivery interval, detection zone covers in the transverse region of first conveyer belt and the transverse region of second conveyer belt, controlling means is connected with detector, first conveyor and second conveyor electricity respectively.
Further, the second conveyor belt is distributed on the upper side of the first conveyor belt.
Further, the number of the second conveying devices is three, and the second conveying devices are arranged side by side along the transverse direction.
Further, a beam is arranged on the frame, a channel is formed between the frame and the beam, the detector is arranged on the beam, the detection area covers the channel, and the first conveying belt and the second conveying belt penetrate through the channel.
Further, the test piece is a metal test block or a mixed test block with the metal test block placed in the product.
Further, the metal test block is a stainless steel test block with a diameter size of 2.5mm or an iron test block with a diameter size of 1.5 mm.
Further, the metal test block in the mixed test block is arranged on the upper part of the product or the metal test block is arranged in the middle of the product or the metal test block is arranged on the lower part of the product.
Further, the second conveyer belt is sleeved outside the detector.
Further, eight test pieces are arranged at intervals on the second conveyor belt, and the eight test pieces are stainless steel test pieces, iron test pieces, stainless steel test pieces, iron test pieces and iron test pieces.
By adopting the technical scheme, the invention has the beneficial effects that: when the equipment is started up, shut down and every operation interval of the equipment is one hour, the first conveying device is controlled by the control device to stop conveying products to be detected through the detection area of the detector, meanwhile, the second conveying device is controlled to operate, and test pieces on the second conveying device are conveyed through the detection area, so that whether the operation state of the detector is good or not is tested. The device realizes the automatic timing test of the metal detection device by controlling the operation of the first conveying device and the second conveying device, ensures the metal detection of products, and improves the metal detection accuracy and reliability of the metal detection device.
Drawings
FIG. 1 is a schematic top view of a first embodiment of the present invention;
FIG. 2 is a schematic diagram of a front view of a second embodiment of the present invention;
fig. 3 is a schematic perspective view of a second conveying device omitted in the second embodiment of the present invention;
fig. 4 is a schematic front view of another state of the second embodiment of the present invention.
Detailed Description
The invention will now be further described with reference to the drawings and detailed description.
The embodiment of the invention comprises the following steps:
embodiment one:
referring to fig. 1, an automatic correction metal detecting apparatus includes a frame 1, a control device 2 provided on the frame 1, a detector having a detection area, a first conveying device 3, and a second conveying device 4, the first conveying device 3 including a first driving motor 31, a first driving roller 32 provided on the first driving motor 31, a first driven roller 33 provided on the frame 1, and a first conveying belt 34 wound around the first driving roller 32 and the first driven roller 33, the first driving roller 32 being rotated by the first driving motor 31, and the first conveying belt 34 being continuously moved by the tensioning action of the first driven roller 33 on the first conveying belt 34 for conveying products 20 defining a longitudinal direction extending in a conveying direction of the first conveying belt 34 and a transverse direction extending in a width direction thereof, the second conveying device 4 comprises a second driving motor 41, a second driving roller 42 arranged on the second driving motor 41, a second driven roller 43 arranged on the frame 1 and a second conveying belt 44 wound on the second driving roller 42 and the second driven roller 43, the second driving roller 42 is driven to rotate by the second driving motor 41, and the second conveying belt 44 is acted by the second driven roller 43 to realize continuous movement of the second conveying belt 44, so as to convey the test piece 10 fixed on the second conveying belt 44, the test piece 10 can be adhered or locked or hooked on the second conveying belt 44 by bolts, at least one test piece 10 for testing a detector is arranged on the second conveying belt 44 at intervals along the conveying direction, the detection area covers the transverse area of the first conveying belt 34 and the transverse area of the second conveying belt 44, namely the first conveying belt 34 and the second conveying belt 44, when the first conveyor belt 34 conveys the products 20 and the second conveyor belt 44 conveys the test piece 10 through the detection area, the detection can be recognized and performed by the detector, and the control device 2 is electrically connected to the detector, the first driving motor 31 and the second driving motor 41, respectively.
When the number of the second conveying devices 4 is one, the automatic correction metal detection device controls the first conveying device 3 to stop conveying products 20 to detect through the detection area of the detector through the control device 2 when the equipment is started up, shut down and every operation interval of the equipment is one hour, and simultaneously controls the second conveying device 4 to operate, and the test piece 10 on the second conveying device 4 is conveyed through the detection area, so that whether the operation state of the detector is good is tested. The device realizes the automatic timing test of the metal detection device by controlling the operation of the first conveying device 3 and the second conveying device 4, ensures the metal detection of the product 20, and improves the metal detection accuracy and reliability of the metal detection device.
Embodiment two:
referring to fig. 2, 3 and 4, the second conveyor belts 44 are distributed on the upper side of the first conveyor belt 34, when the number of the second conveyor belts 4 is two or more, the distance between the second conveyor belts 4 is 20mm, and the second conveyor belts 44 are arranged side by side along the transverse direction, the orthographic projection of each second conveyor belt 44 is distributed on the first conveyor belt 34, the test pieces 10 are arranged on the second conveyor belts 44 on each second conveyor belt 4, in the test, the control device 2 controls each second conveyor belt 4 to sequentially operate, so that the test pieces 10 on each second conveyor belt 44 sequentially pass through the detection area of the detector, each position in the transverse direction of the detection area is respectively tested, the accuracy of the test is greatly improved, the accuracy and the reliability of the detection process of the product 20 are further improved, in theory, the more the number of the second conveyor belts 4 is, the higher the test accuracy is, the cost of the test is increased, preferably, and the cost of the test is guaranteed to be maximally input along the transverse direction and the middle of the test is ensured when the number of the second conveyor belts 4 is three, and the test is arranged side by side, and the maximum cost of the test is ensured.
It should be noted that the front projection of each of the second conveyor belts 44 is distributed on the first conveyor belt 34, and the width dimension of the two lateral sides of the front projection of the second conveyor belt 44 is equal to or slightly greater than the lateral width dimension of the first conveyor belt 34, so that the area of the test piece 10 when being tested can be completely covered on the lateral area of the product 20 placed on the first conveyor belt 34, and the accuracy of the test is ensured to be kept at a higher level.
Moreover, be equipped with crossbeam 5 on the frame 1, form a passageway 6 between frame 1 and the crossbeam 5, the detector is located on the crossbeam 5, detection area cover in this passageway 6, first conveyer belt 34 and second conveyer belt 44 all run through in passageway 6, the detector outside is located to the second conveyer belt 44 cover, when setting up a plurality of test pieces 10 on same second conveyer belt 44, guarantees that test piece 10 can be in the detection area alone, and the distribution space of make full use of second conveyer belt 44 simultaneously reduces the setting length of second conveyer belt 44, improves the economic nature to reduce two adjacent test pieces 10 on same second conveyer belt 44 and influence each other in the testing process, improved the accuracy of test.
In this embodiment, the test piece 10 is a metal test block or a mixed test block of metal test blocks placed in a product, the metal test block is a stainless steel test block with a diameter of 2.5mm or an iron test block with a diameter of 1.5mm, the metal test block in the mixed test block is arranged on the upper portion of the product or the metal test block is arranged in the middle portion of the product or the lower portion of the product, and the test block with various structures is used for testing the detection area, so that the detection condition of the metal detection device on the product can be fully simulated, and the reliability of the test is improved.
The test piece 10 may be a test block made of a metal material such as stainless steel or copper.
Specifically, the second conveyor belt 44 is provided with eight test pieces 10 at intervals, and the eight test pieces are stainless steel test pieces, iron test pieces, stainless steel test pieces, iron test pieces, and a plurality of test piece structures.
When the equipment is started, shut down or the equipment runs for one hour, the equipment is controlled by the control device 2 to enter a test mode, namely, the control device 1 controls the first conveying device 3 to stop conveying products 20 to pass through the detection area of the detector for detection, and simultaneously controls the second conveying device 4 to run from left to right in sequence, so that stainless steel test blocks on each second conveying belt 44 sequentially pass through the detection area, and it is noted that only one test piece 10 exists in the detection area, after the test piece 10 enters the detection area of the detector, the equipment alarms and simultaneously stops the operation of the first conveying device 3 and the second conveying device 4, after the manual confirmation or the preset stop time of the control device is performed, the first conveying device 3 is continuously started, and the conditions are sequentially changed, so that the iron test blocks on the three second conveying belts 44, the stainless steel test blocks are arranged on the mixed test blocks on the upper part of the products, the stainless steel test blocks are arranged on the mixed test blocks on the lower part of the products, the iron test blocks are arranged on the mixed test blocks on the upper part of the products, after the test blocks 10 enter the detection area of the products, the first conveying device and the second conveying device is stopped, and the second conveying device is continuously started after the manual confirmation or the preset stop time of the control device, if the detection is required by the control device, and the second conveying device is stopped, and the detection device is continuously started after the detection is started, and the detection device is started, if the detection device is started and the detection device is started, and the detection device is continuously, and the condition is stopped, and the detection device is continuously detects the condition that the metal test is required, and the metal test device is continuously, and the detection device is continuously and capable of detecting and loaded, and if the detection device is in the detection mode, and has a detection zone and a detection device And maintaining and retesting, and detecting the product 20 after the product is qualified.
When the product 20 is detected, the first conveying device 3 is controlled by the control device 2 to convey the product 20 to be detected through the detection area of the detector, when the metal detection device alarms, the first conveying device 3 is controlled by the control device 2 to rotate reversely and then rotate positively, so that the product 20 is continuously detected for three times, when no alarm occurs, the first conveying device 3 is controlled by the control device 3 to convey the product to continue to operate for detection, when one or two alarms occur, the reject device 7 is controlled by the control device 2 to reject the product to be classified as a defective product, then the manual detection is carried out, and the control device enters the test mode to carry out detection, when three alarms occur, the reject device 7 is controlled by the control device 2 to reject the product to be classified as a defective product, and then the first conveying device 3 is controlled by the control device to convey the product 20 to continue to carry out detection.
Moreover, in order to avoid the blocking of the test piece 10 and the product 20 on the first conveying device 3 in the channel 6, a baffle plate is arranged at the input end of the first conveying device 3, and a driving cylinder for driving the baffle plate to move so as to block the product 20, when the device is to enter a test mode, the product is blocked outside the channel 6 through the baffle plate, so that the influence of the product 20 on the test is avoided, and the test accuracy is improved.
Of course, the second conveyor belt 44 on each second conveyor device 4 may be used to fix test pieces 10 of different specifications, and the test is performed by sequentially driving the test pieces 10 on the second conveyor belt 44 of the second conveyor device 4 sequentially through the detection area.
While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (3)
1. An automatic correction metal detection device, characterized in that: the device comprises a frame, a control device, a detector, a first conveying device and three second conveying devices which are arranged on the frame, wherein the detector is provided with a detection area, the first conveying device is provided with a first conveying belt which moves continuously, a longitudinal direction is defined to extend along the conveying direction of the first conveying belt, a transverse direction is defined to extend along the width direction of the first conveying belt, the second conveying device is provided with a second conveying belt which moves continuously, the second conveying belts are distributed on the upper side of the first conveying belt, each second conveying device is arranged side by side along the transverse direction, eight test pieces for testing the detector are arranged on the second conveying belt at intervals along the conveying direction of the second conveying belt, the stainless steel test blocks, the mixed test blocks arranged at the upper part of the product, the mixed test blocks arranged at the lower part of the product, the mixed test blocks arranged at the middle part of the product, the mixed test blocks arranged at the lower part of the product, the eight test blocks arranged at the product, and the second conveying blocks arranged at the lower part of the product are arranged at the mixed test blocks, and the first conveying belt, and the second conveying device is connected with the second conveying device in a transverse area, and the first conveying device and the second conveying device are connected with the control device;
when the equipment is started, shut down or the equipment runs for one hour, the control device controls the equipment to enter a test mode, namely, the control device controls the first conveying device to stop conveying products to pass through a detection area of the detector and simultaneously controls the second conveying device to run from left to right, so that stainless steel test blocks on each second conveying belt sequentially pass through the detection area;
when products are detected, the first conveying device is controlled by the control device to convey the products to be detected through the detection area of the detector, when the metal detection device alarms, the first conveying device is controlled by the control device to reversely rotate and then positively rotate, so that the products are continuously detected for three times, when no alarm occurs, the first conveying device is controlled by the control device to convey the products to continue to operate and detect, when one or two alarms occur, the waste rejecting device is controlled by the control device to reject the products to be classified as inferior products, then the manual detection is performed, the control device enters the test mode to detect, and when three alarms occur, the waste rejecting device is controlled by the control device to reject the products to be classified as inferior products, and then the first conveying device is controlled by the control device to convey the products to continue to detect.
2. The self-calibrating metal detection apparatus of claim 1 wherein: the detector is arranged on the cross beam, the detection area covers the channel, and the first conveying belt and the second conveying belt penetrate through the channel.
3. The self-calibrating metal detection apparatus of claim 2 wherein: the second conveyer belt is sleeved outside the detector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110880974.3A CN113466966B (en) | 2021-08-02 | 2021-08-02 | Automatic correction metal detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110880974.3A CN113466966B (en) | 2021-08-02 | 2021-08-02 | Automatic correction metal detection device |
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| Publication Number | Publication Date |
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| CN113466966A CN113466966A (en) | 2021-10-01 |
| CN113466966B true CN113466966B (en) | 2024-03-19 |
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| CN202110880974.3A Active CN113466966B (en) | 2021-08-02 | 2021-08-02 | Automatic correction metal detection device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| EP4357820A1 (en) * | 2022-10-21 | 2024-04-24 | Cassel Meßtechnik GmbH | Method and device for detecting metal bodies in test objects |
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