CN103123865B - Magnetic product processing method and automatic sorting device - Google Patents

Abstract

The invention discloses a magnetic product processing method and automatic sorting equipment, including the steps of grinding the outline of the block material, the step of wire cutting the block material, the step of automatic sorting, the step of pickling respectively and the step of electroplating In the step of automatic sorting, the sliced black chip products are divided into four categories, and then the other three categories of products except scrap products are pickled with different acid solutions to directly obtain the thickness that meets the requirements of the electroplating process. Product; the advantage is that the double-sided grinding process is omitted in the process, so there is no need to leave a grinding allowance in the online cutting equipment, which avoids the waste of materials, improves the utilization rate of materials, and saves material costs. In addition, compared with The processing method adopts the double-sided grinding process, which does not require a large amount of equipment and manpower, and has low labor intensity and high speed, which improves the production efficiency of the product.

Description

A magnetic product processing method and automatic sorting equipment

technical field

The invention relates to a magnetic product processing technology, in particular to a magnetic product processing method and automatic sorting equipment.

Background technique

The processing process of magnetic products is generally: grinding of block contour → block slicing → double-sided grinding → chamfering and drying → pre-plating treatment → electroplating. In order to ensure that the products after electroplating meet the quality requirements, the corresponding nominal size is generally set in each process according to the product requirements. The double-sided grinding process is mainly to overcome the uneven product thickness caused by the discrete nature of the cutting equipment, so as to ensure Consistency of product thickness and size. Since inner circle slicing is rigid processing, the thickness and size of the processed product are highly discrete, so the slicing process needs to leave a large grinding allowance on the basis of its corresponding nominal size. The amount is at least 0.08mm, which leads to a lot of waste of raw materials and increased product costs. In addition, the double-sided grinding process also needs to invest a lot of equipment and manpower.

Contents of the invention

The first technical problem to be solved by the present invention is to provide a magnetic product processing method that can save materials, reduce processing costs, and have high production efficiency.

The technical solution adopted by the present invention to solve the above-mentioned first technical problem is: a magnetic product processing method, comprising the following steps:

① Grinding the outline of the block;

②According to the product requirements, set the nominal size of the slice thickness in the online cutting equipment;

③ Wire-cutting the block material to obtain a sheet-like black sheet product, the actual thickness of the sheet-like black sheet product is within the nominal size of the slice thickness ± the tolerance range of the slice or exceeds the nominal size of the slice thickness ± the tolerance range of the slice;

④ Sorting flake black products into four categories: the thickness of the first type of flake products is greater than or equal to the nominal size of sorting thickness - slice tolerance and less than or equal to the nominal size of sorting thickness + slice tolerance, the second type of flake The thickness of the black chip product is greater than the nominal size of sorting thickness + slice tolerance and less than the nominal size of sorting thickness + 2.5 times the slice tolerance, and the thickness of the third type of flaky black chip product is greater than the nominal size of sorting thickness - 2.5 times the slice tolerance and Smaller than the nominal size of the sorting thickness - slice tolerance, the thickness of the fourth type of flaky black chip product is less than or equal to the nominal size of the sorting thickness - 2.5 times the slice tolerance or greater than or equal to the nominal size of the sorting thickness + 2.5 times the slice tolerance;

5. Pickling the first three types of flaky black flake products obtained by sorting in step ④ respectively; wherein the concentration of the first type of flaky black flake products obtained by mixing nitric acid and sulfuric acid is 0.85% to 1.15% (weight percentage) The first mixed acid solution is pickled, and the pickling time is 1 minute to 4 minutes; the second type of flaky black product is obtained by mixing nitric acid and sulfuric acid with a concentration of 1.25% to 1.55% (weight percentage). Mixed acid solution for pickling, the pickling time is 1 minute to 4 minutes; the third type of flaky black product is obtained by mixing nitric acid and sulfuric acid with the third mixed acid solution with a concentration of 0.4% to 0.6% (weight percentage) Carry out pickling, the pickling time is 1 minute to 4 minutes;

⑥Electroplating all the products after pickling to obtain magnetic products that meet the requirements.

The wire cutting device is a wire saw device.

The weight ratio of nitric acid and sulfuric acid in the first mixed acid solution is 1:1 to 1.5:1; the weight ratio of nitric acid and sulfuric acid in the second mixed acid solution is 1.2:1 to 1.5:1; The weight ratio of nitric acid and sulfuric acid in the third mixed acid solution is 0.8:1˜1.5:1.

After the step ⑤ and before the step ⑥, there is also a pickling step again, and the pickling step again is specifically: all the products after the pickling obtained in the step ⑤ are obtained by mixing nitric acid and sulfuric acid The fourth mixed acid solution with a concentration of 0.3% to 0.5% (weight percentage) is pickled again, and the pickling time is 1.5 minutes to 2 minutes.

The weight ratio of nitric acid and sulfuric acid in the fourth mixed acid solution is 1:1˜1.5:1.

The second technical problem to be solved by the present invention is to provide an automatic sorting device for magnetic products, which can ensure that the processing method of magnetic products saves materials, reduces production costs, and has high production efficiency.

The technical solution adopted by the present invention to solve the above-mentioned second technical problem is: an automatic sorting device for magnetic products, including a base, a feeding mechanism, a transmission track, a size detection mechanism, a circuit control device, a material distribution mechanism and at least three Material box, the transmission track is fixedly installed on the base in a manner inclined relative to the vertical direction, the input end of the transmission track is connected to the output end of the feeding mechanism, and the size detection mechanism It is fixedly installed above the conveying track, and the material distributing mechanism is arranged at the output end of the conveying track, and is used to input the product into the corresponding receiving box, and the circuit control device is respectively connected with the The size detection mechanism is connected with the material distribution mechanism.

The inclination angle of the conveying track is 20°-40°.

The dimension detection mechanism is a laser detection mechanism.

The feeding mechanism is a vibrating feeding hopper.

Compared with the prior art, the present invention has the advantage of cutting the block material into flaky black-chip products by adopting wire cutting equipment, and then dividing the flaky black-chip products into four categories, wherein the thickness of one type of flaky black-chip products is Or too large (thickness greater than or equal to sorting thickness nominal size + 2.5 times slice tolerance) or too small (thickness less than or equal to sorting thickness nominal size - 2.5 times slice tolerance or), it will be listed as scrap, and then According to the thickness of the remaining three types of flaky black chip products, different acid solutions are used for pickling, and the products that meet the thickness requirements of the electroplating process can be directly obtained. The double-sided grinding process is omitted in the process, and no need to leave The grinding allowance in the double-sided grinding process avoids the waste of materials, improves the utilization rate of materials, and saves material costs; in addition, compared with the magnetic product processing method using double-sided grinding process, it does not need to invest a lot of Equipment and manpower, low labor intensity and high speed, which improves the production efficiency of products;

When the second pickling step is set, the thickness of the product can be further corrected, the deviation of the product thickness can be reduced, and the quality of the product can be guaranteed;

When the inclination angle of the conveying track in the automatic sorting equipment is 20°-40°, on the premise of ensuring that the product slides under the action of gravity, it can avoid congestion and product damage caused by excessive moving speed of the product.

Description of drawings

Fig. 1 is a structural schematic diagram of the automatic sorting equipment of the present invention.

Detailed ways

The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

The invention provides a magnetic product processing method, comprising the following steps:

① Grinding the outline of the block;

②According to the product requirements, set the nominal size of the slice thickness in the online cutting equipment;

③ Wire-cutting the block material to obtain a sheet-like black sheet product, the actual thickness of the sheet-like black sheet product is within the nominal size of the slice thickness ± the tolerance range of the slice or exceeds the nominal size of the slice thickness ± the tolerance range of the slice;

④ Sorting flake black products into four categories: the thickness of the first type of flake products is greater than or equal to the nominal size of sorting thickness - slice tolerance and less than or equal to the nominal size of sorting thickness + slice tolerance, the second type of flake The thickness of the black chip product is greater than the nominal size of sorting thickness + slice tolerance and less than the nominal size of sorting thickness + 2.5 times the slice tolerance, and the thickness of the third type of flaky black chip product is greater than the nominal size of sorting thickness - 2.5 times the slice tolerance and Smaller than the nominal size of the sorting thickness - slice tolerance, the thickness of the fourth type of flaky black chip product is less than or equal to the nominal size of the sorting thickness - 2.5 times the slice tolerance or greater than or equal to the nominal size of the sorting thickness + 2.5 times the slice tolerance;

5. The first three types of flaky black flake products obtained by sorting in step ④ are pickled respectively; wherein the first type of black flake products are obtained by mixing nitric acid and sulfuric acid with a concentration of 0.85% to 1.15% (percentage by weight). A mixed acid solution is pickled, and the pickling time is 1 minute to 4 minutes; the second type of black chip product is processed by the second mixed acid solution with a concentration of 1.25% to 1.55% (weight percentage) obtained by mixing nitric acid and sulfuric acid. Pickling, the pickling time is 1 minute to 4 minutes; the third type of black sheet products are pickled by the third mixed acid solution with a concentration of 0.4% to 0.6% (weight percentage) obtained by mixing nitric acid and sulfuric acid, pickling The time is 1 minute to 4 minutes;

⑥Electroplating all the products after pickling to obtain magnetic products that meet the requirements.

Embodiment 1: A kind of magnetic product processing method, wherein the thickness of the required magnetic product is 1.08mm, comprises the following steps:

① Grinding the outline of the block with a length of 43mm;

②According to the product requirements, the nominal size of the slice thickness is set to 1.08mm in the online cutting equipment, and the wire cutting equipment adopts the wire saw equipment, and the slice tolerance is ±0.02mm;

③ Carry out wire cutting of the block material to obtain a flaky black chip product, the thickness of the flaky black chip product is within the range of 1.08mm ± 0.02mm of the nominal thickness of the slice or exceeds the range of 1.08mm ± 0.02mm of the nominal thickness of the slice;

④ Use automatic sorting equipment to sort flake black products: according to product requirements, set the nominal size of the sorting thickness to 1.08mm in the automatic sorting equipment, and sort the flake black products through the automatic sorting equipment Selection, the automatic sorting equipment sorts the flaky black products into four categories: the thickness range of the first type of flaky black products is: 1.06mm～1.10mm; the thickness of the second type of flaky black products is greater than 1.10mm And less than 1.13mm, the thickness of the third type of flaky black film products is greater than 1.03mm and less than 1.06mm, the thickness of the fourth type of flaky black film products is less than or equal to 1.03mm or greater than or equal to 1.13mm; the fourth type of flaky black film products as scrap;

5. The first three types of flaky black flake products obtained by sorting in step ④ are pickled respectively; wherein the first type of black flake products are mixed with nitric acid and sulfuric acid to obtain the concentration of the first mixed acid of 0.85% (percentage by weight) pickling solution, the pickling time is 1 minute, and the thickness of the product after pickling can be removed by 0.03mm; Pickling with mixed acid solution, the pickling time is 1 minute, and the thickness of the product after pickling can be removed by 0.045mm; Pickling with the three-mixed acid solution, the pickling time is 1 minute, and the thickness of the product can be removed by 0.015mm after pickling;

⑥Electroplating all the products after pickling to obtain magnetic products that meet the requirements.

In this embodiment, the weight ratio of nitric acid and sulfuric acid in the first mixed acid solution is 1:1; the weight ratio of nitric acid and sulfuric acid in the second mixed acid solution is 1.2:1; the weight ratio of nitric acid and sulfuric acid in the third mixed acid solution The ratio is 0.8:1.

Embodiment 2: This embodiment is basically the same as Embodiment 1, the only difference is that in this embodiment, after step 5 and before step 6, a pickling step is provided again, and the pickling step again is specifically: pickling the pickling obtained in step 5. After all the products are pickled again by the fourth mixed acid solution with a concentration of 0.25% (weight percentage) obtained by mixing nitric acid and sulfuric acid, the weight ratio of nitric acid and sulfuric acid in the fourth mixed acid solution is 1:1, pickling The time is 1 minute, and the thickness of the product can be removed by 0.015 mm after pickling again. Compared with the first embodiment, the thickness accuracy of the magnetic product processed in this embodiment is higher.

Embodiment three: a magnetic product processing method, wherein the thickness of the required magnetic product is 1.08mm, comprising the following steps:

① Grinding the outline of the block with a length of 43mm;

②According to the product requirements, the nominal size of the slice thickness is set to 1.08mm in the online cutting equipment, and the wire cutting equipment adopts the wire saw equipment, and the slice tolerance is ±0.02mm;

③ Carry out wire cutting of the block material to obtain a flaky black chip product, the thickness of the flaky black chip product is within the range of 1.08mm ± 0.02mm of the nominal thickness of the slice or exceeds the range of 1.08mm ± 0.02mm of the nominal thickness of the slice;

④ Use automatic sorting equipment to sort flake black products: according to product requirements, set the nominal size of the sorting thickness to 1.08mm in the automatic sorting equipment, and sort the flake black products through the automatic sorting equipment Selection, the automatic sorting equipment sorts the flaky black products into four categories: the thickness range of the first type of flaky black products is: 1.06mm～1.10mm; the thickness of the second type of flaky black products is greater than 1.10mm And less than 1.13mm, the thickness of the third type of flaky black film products is greater than 1.03mm and less than 1.06mm, the thickness of the fourth type of flaky black film products is less than or equal to 1.03mm or greater than or equal to 1.13mm; the fourth type of flaky black film products as scrap;

5. The first three types of flaky black flake products obtained by sorting in step ④ are pickled respectively; wherein the first type of black flake products are mixed with nitric acid and sulfuric acid to obtain the concentration of the first mixed acid of 1.15% (percentage by weight) pickling solution, the pickling time is 4 minutes, and the thickness of the product after pickling can be removed by 0.04mm; Pickling with mixed acid solution, the pickling time is 4 minutes, and the thickness of the product can be removed by 0.055mm after pickling; Pickling with the three-mixed acid solution, the pickling time is 4 minutes, and the thickness of the product can be removed by 0.025mm after pickling;

⑥Electroplating all the products after pickling to obtain magnetic products that meet the requirements.

In the present embodiment, the weight ratio of nitric acid and sulfuric acid in the first mixed acid solution is 1.5:1; the weight ratio of nitric acid and sulfuric acid in the second mixed acid solution is 1.5:1; the weight ratio of nitric acid and sulfuric acid in the third mixed acid solution The ratio is 1.5:1.

Embodiment 4: This embodiment is basically the same as Embodiment 3, the only difference is that in this embodiment, after step 5 and before step 6, there is also a pickling step again, and the pickling step again is specifically: pickling the pickling obtained in step 5. After all the products are pickled again by the fourth mixed acid solution with a concentration of 0.5% (percentage by weight) obtained by mixing nitric acid and sulfuric acid, the weight ratio of nitric acid and sulfuric acid in the fourth mixed acid solution is 1.5:1, pickling The time is 4 minutes, and the thickness of the product can be removed by 0.025 mm after pickling again. Compared with the third embodiment, the thickness accuracy of the magnetic product processed in this embodiment is higher.

Embodiment five: a magnetic product processing method, wherein the thickness of the required magnetic product is 1.08mm, comprising the following steps:

① Grinding the outline of the block with a length of 43 mm;

②According to the product requirements, the nominal size of the slice thickness is set to 1.08mm in the online cutting equipment, and the wire cutting equipment adopts the wire saw equipment, and the slice tolerance is ±0.02mm;

③ Carry out wire cutting of the block material to obtain a flaky black chip product, the thickness of the flaky black chip product is within the range of 1.08mm ± 0.02mm of the nominal thickness of the slice or exceeds the range of 1.08mm ± 0.02mm of the nominal thickness of the slice;

④ Use automatic sorting equipment to sort flake black products: according to product requirements, set the nominal size of the sorting thickness to 1.08mm in the automatic sorting equipment, and sort the flake black products through the automatic sorting equipment Selection, the automatic sorting equipment sorts the flaky black products into four categories: the thickness range of the first type of flaky black products is: 1.06mm～1.10mm; the thickness of the second type of flaky black products is greater than 1.10mm And less than 1.13mm, the thickness of the third type of flaky black film products is greater than 1.03mm and less than 1.06mm, the thickness of the fourth type of flaky black film products is less than or equal to 1.03mm or greater than or equal to 1.13mm; the fourth type of flaky black film products as scrap;

5. The first three types of flaky black flake products obtained by sorting in step ④ are pickled respectively; wherein the first type of black flake products are mixed with nitric acid and sulfuric acid to obtain the first mixed acid with a concentration of 1% (percentage by weight). pickling solution, the pickling time is 3 minutes, and the thickness of the product can be removed by 0.035mm after pickling; the second type of flaky black flake product is obtained by mixing nitric acid and sulfuric acid with a concentration of 1.35% (percentage by weight) Pickling with mixed acid solution, the pickling time is 3 minutes, and the thickness of the product can be removed by 0.05mm after pickling; Pickling with the three-mixed acid solution, the pickling time is 3 minutes, and the thickness of the product can be removed by 0.02mm after pickling;

⑥Electroplating all the products after pickling to obtain magnetic products that meet the requirements.

In this embodiment, the weight ratio of nitric acid and sulfuric acid in the first mixed acid solution is 1:1; the weight ratio of nitric acid and sulfuric acid in the second mixed acid solution is 1.2:1; the weight ratio of nitric acid and sulfuric acid in the third mixed acid solution The ratio is 0.8:1.

Embodiment 6: This embodiment is basically the same as Embodiment 5, the only difference is that in this embodiment, after step 5 and before step 6, there is also a pickling step again, and the pickling step again is specifically: pickling the pickling obtained in step 5. After all the products are pickled again by the fourth mixed acid solution with a concentration of 0.35% (percentage by weight) obtained by mixing nitric acid and sulfuric acid, the weight ratio of nitric acid and sulfuric acid in the fourth mixed acid solution is 1:1, pickling The time is 3 minutes, and the thickness of the product can be removed by 0.02mm after pickling again. Compared with the fifth embodiment, the thickness accuracy of the magnetic product processed in this embodiment is higher.

The number of magnetic products finally obtained in the above-mentioned embodiments 1 to 6 is 30 pieces, which is 2 more than the magnetic products obtained by using the double-sided grinding process in the prior art, and the output rate has increased by 7.02% .

Embodiment 7: A magnetic product processing method, wherein the thickness of the magnetic product required to be obtained is 1.27mm, comprising the following steps:

① Grinding the outline of the block with a length of 43mm;

②According to the product requirements, set the nominal size of the slice thickness in the online cutting equipment to be 1.27mm, in which the wire cutting equipment adopts the wire saw equipment, and the slice tolerance of the wire cutting equipment is ±0.02mm;

③ Carry out wire cutting of the block material to obtain a flaky black chip product, the thickness of the flaky black chip product is within the range of the nominal thickness of the product ± 0.02mm or exceeds the range of 1.27mm ± 0.02mm of the nominal thickness of the slice;

④ Use automatic sorting equipment to sort flake black products: according to product requirements, set the nominal size of the sorting thickness to 1.27mm in the automatic sorting equipment, and sort the flake black products through the automatic sorting equipment The automatic sorting equipment sorts the flaky black products into four categories: the thickness range of the first type of black products is: 1.25mm～1.29mm, and the thickness of the second type of black products is greater than 1.29mm and less than 1.32mm , the thickness of the third category of black chip products is greater than 1.22mm and less than 1.25mm, the thickness of the fourth category of black chip products is less than or equal to 1.22mm or greater than or equal to 1.32mm; the fourth category of flaky black chip products are scrap products;

5. The first three types of flaky black flake products obtained by sorting in step ④ are pickled respectively; wherein the first type of black flake products are mixed with nitric acid and sulfuric acid to obtain the concentration of the first mixed acid of 0.85% (percentage by weight) pickling solution, the pickling time is 1 minute, and the thickness of the product can be removed by 0.03mm after pickling; the second type of black chip product is obtained by mixing nitric acid and sulfuric acid with a concentration of 1.25% (weight percentage) The second mixed acid pickling solution, the pickling time is 1 minute, and the thickness of the product after pickling can be removed by 0.045mm; the third type of blank product is processed by the third mixed acid solution with a concentration of 0.4% (weight percentage) obtained by mixing nitric acid and sulfuric acid Pickling, the pickling time is 1 minute, and the product thickness can be removed by 0.015mm after pickling;

⑥Electroplating all the products after pickling to obtain magnetic products that meet the requirements.

In this embodiment, the weight ratio of nitric acid and sulfuric acid in the first mixed acid solution is 1:1; the weight ratio of nitric acid and sulfuric acid in the second mixed acid solution is 1.2:1; the weight ratio of nitric acid and sulfuric acid in the third mixed acid solution The ratio is 0.8:1.

Embodiment 8: This embodiment is basically the same as Embodiment 7, the only difference is that in this embodiment, after step 5 and before step 6, there is also a pickling step again, and the pickling step again is specifically: pickling the pickling obtained in step 5. After all the products are pickled again by the fourth mixed acid solution with a concentration of 0.25% (weight percentage) obtained by mixing nitric acid and sulfuric acid, the weight ratio of nitric acid and sulfuric acid in the fourth mixed acid solution is 1:1, pickling The time is 1 minute, and the thickness of the product can be removed by 0.015mm after pickling again. Compared with the seventh embodiment, the thickness accuracy of the magnetic product processed in this embodiment is higher.

Embodiment 9: A magnetic product processing method, wherein the thickness of the required magnetic product is 1.27mm, comprising the following steps:

① Grinding the outline of the block with a length of 43mm;

②According to the product requirements, set the nominal size of the slice thickness in the online cutting equipment to be 1.27mm, in which the wire cutting equipment adopts the wire saw equipment, and the slice tolerance of the wire cutting equipment is ±0.02mm;

③ Carry out wire cutting of the block material to obtain a flaky black chip product, the thickness of the flaky black chip product is within the range of the nominal thickness of the product ± 0.02mm or exceeds the range of 1.27mm ± 0.02mm of the nominal thickness of the slice;

④ Use automatic sorting equipment to sort flake black products: according to product requirements, set the nominal size of the sorting thickness to 1.27mm in the automatic sorting equipment, and sort the flake black products through the automatic sorting equipment The automatic sorting equipment sorts the flaky black products into four categories: the thickness range of the first type of black products is: 1.25mm～1.29mm, and the thickness of the second type of black products is greater than 1.29mm and less than 1.32mm , the thickness of the third category of black chip products is greater than 1.22mm and less than 1.25mm, the thickness of the fourth category of black chip products is less than or equal to 1.22mm or greater than or equal to 1.32mm; the fourth category of flaky black chip products are scrap products;

5. The first three types of flaky black flake products obtained by sorting in step ④ are pickled respectively; wherein the first type of black flake products are mixed with nitric acid and sulfuric acid to obtain the concentration of the first mixed acid of 1.15% (percentage by weight) pickling solution, the pickling time is 4 minutes, and the thickness of the product can be removed by 0.04mm after pickling; the second type of black chip product is obtained by mixing nitric acid and sulfuric acid with a concentration of 1.55% (weight percentage) The second mixed acid pickling solution, the pickling time is 4 minutes, and the thickness of the product after pickling can be removed by 0.055mm; the third type of blank product is processed by the third mixed acid solution with a concentration of 0.6% (weight percentage) obtained by mixing nitric acid and sulfuric acid Pickling, the pickling time is 4 minutes, and the product thickness can be removed by 0.025mm after pickling;

⑥Electroplating all the products after pickling to obtain magnetic products that meet the requirements.

In the present embodiment, the weight ratio of nitric acid and sulfuric acid in the first mixed acid solution is 1.5:1; the weight ratio of nitric acid and sulfuric acid in the second mixed acid solution is 1.5:1; the weight ratio of nitric acid and sulfuric acid in the third mixed acid solution The ratio is 1.5:1.

Embodiment 10: This embodiment is basically the same as Embodiment 9, the only difference is that in this embodiment, after step 5 and before step 6, there is a pickling step again, and the pickling step again is specifically: pickling the pickling obtained in step 5. After all the products are pickled again by the fourth mixed acid solution with a concentration of 0.35% (percentage by weight) obtained by mixing nitric acid and sulfuric acid, the weight ratio of nitric acid and sulfuric acid in the fourth mixed acid solution is 1.5:1, pickling The time is 4 minutes, and the thickness of the product can be removed by 0.025mm after pickling again. Compared with the seventh embodiment, the thickness accuracy of the magnetic product processed in this embodiment is higher.

The number of magnetic products finally obtained in the above-mentioned Embodiment 7 to Embodiment 10 is 26 pieces, which is 1 piece more than the magnetic product obtained by the processing method using the double-sided grinding process in the prior art, and the output rate is improved. up 3.92%.

To sum up, compared with the processing method using the double-side grinding process, the processing method of the present invention can save at least 0.08mm thick material for cutting a sheet-shaped black sheet product. And for the present invention, the smaller the thickness of the magnetic product required to be produced, the more obvious the superiority of the processing method of the present invention, that is, the smaller the thickness of the required magnetic product, the higher the discharge rate of the same block material, and the higher the production cost Low.

The present invention also provides an automatic sorting device for magnetic products used in the above-mentioned magnetic product processing method, including a base, a feeding mechanism, a transmission track, a size detection mechanism, a circuit control device, a material distribution mechanism and three material distribution tracks. The track is fixedly installed on the base in an inclined manner relative to the vertical direction. The input end of the transmission track is connected to the output end of the feeding mechanism, and the output end of the transmission track is respectively connected to three distribution tracks. The size detection mechanism is fixedly installed on the transmission track. Above, the distributing mechanism is arranged on both sides of the conveying track and behind the size detection mechanism, which is used to divide the product into the corresponding distribution track, and the circuit control device is connected with the size detection mechanism and the material distribution mechanism respectively.

The working principle of the automatic sorting equipment of the present invention is as follows: firstly, the nominal size of the sorting thickness of the product is set in the automatic sorting equipment according to the production requirements of the product, and then the product is transferred to the conveying track through the feeding mechanism, and the product is transported under the action of gravity. The bottom slides down along the conveying track, the size detection mechanism detects the thickness of the product in real time and sends the product thickness information to the circuit control device, the circuit control device analyzes and processes the received product thickness information and then sends the corresponding sorting instruction to the material distribution Mechanism, the distributing mechanism inputs the product into the corresponding distributing track according to the sorting instruction.

Embodiment 1: As shown in Figure 1, a magnetic product automatic sorting equipment includes a base 1, a feeding mechanism 2, a transmission track 3, a size detection mechanism 4, a circuit control device, a material distribution mechanism 5 and three material distribution tracks 6. The transmission track 3 is fixedly installed on the base 1 in an inclined manner relative to the vertical direction. The inclination angle of the transmission track 3 is 20°. The input end of the transmission track 3 is connected with the output end of the feeding mechanism 2. The transmission track 3 The output ends are respectively connected to the three distribution tracks 6, the size detection mechanism 4 is fixedly installed above the transmission track 3, the material distribution mechanism 5 is arranged on both sides of the transmission track 3 and behind the size detection mechanism, and is used to separate the products into the corresponding distribution track 6, the product enters the corresponding receiving box 7 through the distribution track 6, and the circuit control device is respectively connected with the size detection mechanism 4 and the distribution mechanism 5, the size detection mechanism 4 is a laser detection mechanism, and the feeding Mechanism 2 is a vibrating hopper.

Embodiment 2: This embodiment is basically the same as Embodiment 1, except that the inclination angle of the transport track 3 in this embodiment is 40°.

The automatic sorting equipment of the present invention is used in the magnetic product processing method of the present invention. When automatically sorting the flake black flake products, the flake black flake products are first sorted into three categories: the thickness is greater than or equal to the nominal thickness of the sorting; Size - slice tolerance and less than or equal to sorting thickness nominal size + slice tolerance, thickness greater than sorting thickness nominal size + slice tolerance and thickness less than sorting thickness nominal size - slice tolerance, and then the thickness is greater than sorting thickness nominal size + slice There are two types of sorting for flaky black chip products with tolerances: thickness greater than the nominal size of the sorting thickness + slice tolerance and less than the nominal size of the sorting thickness + 2.5 times the slice tolerance and thickness greater than or equal to the nominal size of the sorting thickness + 2.5 times the slice tolerance, The flaky black chip products with a thickness less than or equal to the nominal size of the sorting thickness - slice tolerance are sorted into two categories: the thickness is greater than the nominal size of the sorting thickness - 2.5 times the slice tolerance and less than the nominal size of the sorting thickness - the slice tolerance and the thickness is less than or equal to the fraction Select the thickness nominal size-2.5 times the slice tolerance, thereby the flaky black chip products in the magnetic product processing method of the present invention are sorted into four categories.

Claims (9)

1. A magnetic product processing method is characterized in that comprising the following steps: ① Grinding the outline of the block; ②According to the product requirements, set the nominal size of the slice thickness in the online cutting equipment; ③ Carrying out wire-cutting of the block material to obtain a sheet-shaped black sheet product, the thickness of the sheet-like black sheet product is within the nominal thickness of the slice thickness ± the tolerance range of the slice or exceeds the nominal size of the slice thickness ± the tolerance range of the slice; ④ Sorting flake black products into four categories: the thickness of the first type of flake products is greater than or equal to the nominal size of sorting thickness - slice tolerance and less than or equal to the nominal size of sorting thickness + slice tolerance, the second type of flake The thickness of the black chip product is greater than the nominal size of sorting thickness + slice tolerance and less than the nominal size of sorting thickness + 2.5 times the slice tolerance. Sorting thickness nominal size - slicing tolerance, the thickness of the fourth type of flaky black sheet products is less than or equal to the sorting thickness nominal size - 2.5 times the slicing tolerance or greater than or equal to the sorting thickness nominal size + 2.5 times the slicing tolerance; among them, the sorting thickness The nominal size is equal to the nominal size of the slice thickness; 5. the first three types of flaky black flake products obtained by sorting in step 4. are pickled respectively; wherein the concentration of the first type of flaky black flake products obtained by mixing nitric acid and sulfuric acid is 0.85% to 1.15% (percentage by weight) The first mixed acid solution is pickled, and the pickling time is 1 minute to 4 minutes; the concentration of the second type of flake black flake product obtained by mixing nitric acid and sulfuric acid is 1.25% to 1.55% (percentage by weight) The mixed acid solution is pickled, and the pickling time is 1 minute to 4 minutes; the third type of flaky black sheet product is obtained by mixing nitric acid and sulfuric acid with a concentration of 0.4% to 0.6% (weight percentage) The third mixed acid solution Carry out pickling, the pickling time is 1 minute to 4 minutes; ⑥Electroplating all the products after pickling to obtain magnetic products that meet the requirements. 2. A magnetic product processing method according to claim 1, characterized in that said wire cutting device is a wire saw device. 3. A magnetic product processing method according to claim 1, characterized in that the weight ratio of nitric acid and sulfuric acid in the first mixed acid solution is 1:1 to 1.5:1; the second mixed acid The weight ratio of nitric acid and sulfuric acid in the liquid is 1.2:1-1.5:1; the weight ratio of nitric acid and sulfuric acid in the third mixed acid liquid is 0.8:1-1.5:1. 4. according to claim 1 or 2 or 3 described a kind of magnetic product processing method, it is characterized in that after described step ⑤ and described step ⑥ before also be provided with pickling step again, described pickling again The steps are as follows: pickling all the products obtained in step 5 after pickling by the fourth mixed acid solution obtained by mixing nitric acid and sulfuric acid with a concentration of 0.3% to 0.5% (percentage by weight), and the pickling time is 1 minutes to 4 minutes. 5. A magnetic product processing method according to claim 4, characterized in that the weight ratio of nitric acid and sulfuric acid in the fourth mixed acid solution is 1:1-1.5:1. 6. A magnetic product automatic sorting device for a magnetic product processing method according to claim 1, characterized in that it includes a base, a feeding mechanism, a transmission track, a size detection mechanism, a circuit control device, a material distribution mechanism and Three distribution tracks, the transmission track is fixedly installed on the base in a manner inclined relative to the vertical direction, the input end of the transmission track is connected to the output end of the feeding mechanism, and the The output end of the transmission track is respectively connected with three distribution tracks, the size detection mechanism is fixedly installed above the transmission track, and the distribution mechanism is arranged on both sides of the transmission track and located on the The rear of the size detection mechanism is used to divide the product into the corresponding distribution track, and the circuit control device is respectively connected with the size detection mechanism and the distribution mechanism. 7. A magnetic product automatic sorting device according to claim 6, characterized in that the inclination angle of the conveying track is 20°-40°. 8. A magnetic product automatic sorting device according to claim 6, characterized in that said size detection mechanism is a laser detection mechanism. 9. A magnetic product automatic sorting device according to claim 6, characterized in that said feeding mechanism is a vibrating feeding hopper.