Silicon steel sheet crystal grain detection system

Abstract

The invention belongs to the technical field of silicon steel processing, and discloses a silicon steel sheet grain detection system, which can automatically complete acid pickling of a silicon steel sheet in a closed acid pickling chamber, does not need manual participation, and is high in safety. In addition, cleaning and drying are firstly carried out after pickling, and then the silicon steel sheets are immediately sent into the detection chamber for grain detection, so that on one hand, oxidation discoloration of the silicon steel sheets can be avoided, accuracy of detection results is improved, and on the other hand, working continuity and working efficiency are improved.

Description

Technical Field

[0001] The present application relates to the technical field of silicon steel processing, and in particular to a silicon steel sheet grain detection system. Background Art

[0002] During the preparation process of silicon steel sheets, a protective film or insulating coating several microns thick will be covered on the surface. In order to understand the quality and performance of silicon steel sheets, it is usually necessary to measure and observe the grain size and morphology of silicon steel sheets (hereinafter referred to as grain detection). The presence of protective film and insulating coating will hinder the grain detection of silicon steel sheets. Therefore, it is necessary to remove the protective film and insulating coating by pickling before performing grain detection.

[0003] In the prior art, the devices for pickling silicon steel sheets are usually relatively simple and their structures are relatively open. The pickling operation requires manual sample placement, which is highly dangerous. In addition, the continuity between the pickling process and the grain detection process is poor. Generally, all samples are pickled first, and then the grains of the pickled samples are uniformly detected. On the one hand, this affects the detection efficiency. On the other hand, it will cause some samples to wait for a long time before the grain detection after pickling. During the waiting process, the surface of the sample is prone to oxidation and discoloration, which in turn affects the detection results.

[0004] Therefore, the prior art needs to be improved and enhanced. Summary of the invention

[0005] The purpose of the present application is to provide a silicon steel sheet grain detection system that can improve the safety, efficiency and accuracy of silicon steel sheet grain detection.

[0006] The present application provides a silicon steel sheet grain detection system, comprising: The cabin body is provided with a pickling room and a testing room; A pickling device is arranged in the pickling chamber and comprises a pickling tank and an acid storage system, wherein the pickling tank is used to pickle the silicon steel sheet, and the acid storage system is used to provide acid solution to the pickling tank and recover the acid solution in the pickling tank; A detection device, arranged in the detection chamber and used to collect a surface image of the silicon steel sheet; A cleaning mechanism is arranged above the pickling tank and is used to clean the silicon steel sheet after pickling to remove the acid liquid adhering to the silicon steel sheet; A drying mechanism is arranged in the pickling chamber and is used to dry the silicon steel sheet after the cleaning process; The transport mechanism can travel back and forth between the pickling chamber and the detection chamber, and is used to send the silicon steel sheet into the pickling tank for pickling, send the pickled silicon steel sheet to the cleaning mechanism and the drying mechanism in turn for cleaning and drying, and send the dried silicon steel sheet to the detection device for surface image acquisition; The host computer is used to monitor the pickling device, the detection device, the cleaning mechanism, the drying mechanism and the transportation mechanism, and to perform grain detection on the silicon steel sheet according to the surface image.

[0007] By using the above-mentioned silicon steel sheet grain detection system, the pickling of silicon steel sheets can be completed automatically in a closed pickling room without manual intervention, which is highly safe. In addition, after pickling, the sheets are first cleaned and dried, and then immediately sent to the detection room for grain detection. On the one hand, this can avoid oxidation and discoloration of the silicon steel sheets and improve the accuracy of the detection results. On the other hand, it improves work continuity and improves work efficiency.

[0008] Preferably, the pickling device also includes a circulation pump, the pickling tank is provided with a plurality of circulation holes, at least one of the circulation holes is connected to the input port of the circulation pump, and at least one of the circulation holes is connected to the output port of the circulation pump; the circulation pump is electrically connected to the host computer, and is used to circulate the acid in the pickling tank to impact the silicon steel sheets.

[0009] On the one hand, the circulation of acid can ensure the uniformity of acid concentration, thereby improving the pickling effect. On the other hand, the impact effect can accelerate the shedding of surface coating of silicon steel sheet, thereby shortening the pickling time and further improving work efficiency.

[0010] Preferably, the pickling tank is provided with an ultrasonic generator, which is electrically connected to the host computer and is used to generate ultrasonic waves to improve the pickling efficiency.

[0011] Ultrasonic waves are used to further accelerate the reaction between the surface coating of the silicon steel sheet and the acid solution, which can further shorten the pickling time and improve work efficiency.

[0012] Preferably, the acid storage system comprises at least one new acid tank, at least one waste acid tank, a delivery pump and a reflux pump, the new acid tank and the waste acid tank are both provided with an output pipe, the waste acid tank also comprises an input pipe, the input port of the delivery pump is communicated with each of the output pipes, the output port of the delivery pump is communicated with the pickling tank, the output port of the reflux pump is communicated with each of the input pipes, and the input port of the reflux pump is communicated with the pickling tank; the new acid tank is used to store unused new acid liquid, and the waste acid tank is used to store used waste acid liquid; the delivery pump and the reflux pump are both electrically connected to the host computer, the reflux pump is used to transport the waste acid liquid from the pickling tank to the waste acid tank, and the delivery pump is used to extract acid liquid from the new acid tank and the waste acid tank, mix them, and then send them into the pickling tank, so that the acid concentration of the acid liquid in the pickling tank is maintained within the target concentration range.

[0013] Preferably, each of the new acid tanks and each of the waste acid tanks is provided with a second acid concentration detection device for detecting the acid concentration of the acid solution, and the second acid concentration detection device is electrically connected to the host computer.

[0014] Preferably, an electromagnetic switch valve and a flow meter are provided at the outlet of each of the output pipes, and the electromagnetic switch valve and the flow meter are electrically connected to the host computer.

[0015] Preferably, the transport mechanism comprises a gantry crane lifting device and a hollow cargo frame, the hollow cargo frame is used to load silicon steel sheets, and the gantry crane lifting device is used to lift the hollow cargo frame.

[0016] Preferably, the hollow loading frame includes a base frame and at least one mounting frame connected to the base frame, the mounting frame includes two parallel cross beams and two parallel clamp beams, the two ends of the clamp beams are respectively slidably connected to the two cross beams so that the distance between the two clamp beams is adjustable, and the two clamp beams can respectively clamp the two ends of multiple silicon steel sheets.

[0017] Preferably, the mounting frame and the base frame are connected in a detachable manner.

[0018] Preferably, the fixture beam comprises a beam tube which is hollow and closed at both ends, an axle rod which passes through the beam tube along the axial direction of the beam tube, and a plurality of clips which are fixedly connected to the axle rod. The lower part of the beam tube is provided with a plurality of slots which are connected to the inner cavity of the beam tube, the upper ends of the slots are higher than the lower ends of the clips, the slots are arranged at equal intervals along the axial direction of the beam tube, the clips are arranged at equal intervals along the axial direction of the axle rod, and the intervals between adjacent slots and the intervals between adjacent clips are equal; the axle rod can slide axially relative to the beam tube, and one end of the axle rod is provided with an external thread, and the end of the axle rod provided with the external thread extends out of the beam tube and is connected to a nut.

[0019] Beneficial effects: The silicon steel sheet grain detection system provided in the present application can automatically complete the pickling of silicon steel sheets in a closed pickling room without manual intervention and is highly safe; in addition, after pickling, the sheets are first cleaned and dried and then immediately sent to the detection room for grain detection. This can, on the one hand, avoid oxidation and discoloration of the silicon steel sheets and improve the accuracy of the detection results, and on the other hand, improve work continuity and work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of the structure of a silicon steel sheet grain detection system provided in an embodiment of the present application.

[0021] Figure 2 This is a schematic diagram of the structure of the pickling tank.

[0022] Figure 3 Schematic diagram of the structure of the acid storage system.

[0023] Figure 4 It is a structural schematic diagram of a hollow loading frame.

[0024] Figure 5 A schematic diagram of the structure of a fixture beam.

[0025] Figure 6 It is a schematic diagram of the structure of another type of fixture beam.

[0026] Description of reference numerals: 1. Cabin; 101. Pickling chamber; 102. Detection chamber; 103. First electric hatch; 104. Second electric hatch; 2. Pickling device; 3. Pickling tank; 301. Circulation hole; 302. Ultrasonic generator; 303. First acid concentration detection device; 304. Temperature sensor; 305. Heating device; 306. Acid inlet; 307. Acid outlet; 308. Overflow hole; 309. Support block; 4. Acid storage system; 401. New acid tank; 402. Waste acid tank; 403. Delivery pump; 404. Reflux pump; 405. Output pipe; 406. Input pipe; 407. Mixer; 408. Second acid concentration detection device; 409. Solenoid switch valve; 410. Flow meter; 411. Overflow tank; 412. First selection solenoid valve; 413. Second selection solenoid valve; 414. Liquid level detection device; 415, mobile base; 5, detection device; 501, detection table; 502, camera; 503, light source; 6, cleaning mechanism; 7, drying mechanism; 8, transportation mechanism; 9, host computer; 10, circulation pump; 11, gantry crane lifting device; 12, hollow load frame; 1201, base frame; 1202, mounting frame; 1203, crossbeam; 1204, fixture beam; 1205, positioning groove; 1206, rectangular bottom Frame; 1207, door frame; 1208, lifting ear; 1209, mounting head; 13, beam tube; 1301, notch; 1302, slider; 1303, through slot; 14, shaft; 1401, external thread; 1402, force handle; 1403, block; 15, clip; 16, nut; 17, spring; 18, exhaust device; 19, air inlet; 20, acid mist concentration detection device; 90, silicon steel sheet. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application claimed for protection, but merely represents the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the present application.

[0028] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. At the same time, in the description of this application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0029] Please refer to Figure 1 , a silicon steel sheet grain detection system in some embodiments of the present application includes: The cabin 1 is provided with a pickling chamber 101 and a detection chamber 102; The pickling device 2 is arranged in the pickling chamber 101 and includes a pickling tank 3 and an acid storage system 4. The pickling tank 3 is used to pickle the silicon steel sheet 90, and the acid storage system 4 is used to provide acid solution to the pickling tank 3 and recover the acid solution in the pickling tank 3; The detection device 5 is arranged in the detection chamber 102 and is used to collect the surface image of the silicon steel sheet 90; A cleaning mechanism 6 is disposed above the pickling tank 3 and is used to clean the silicon steel sheet 90 after pickling to remove the acid solution adhering to the silicon steel sheet 90; The drying mechanism 7 is arranged in the pickling chamber 101 and is used to dry the silicon steel sheet 90 after the cleaning process; The transport mechanism 8 can travel back and forth between the pickling chamber 101 and the detection chamber 102, and is used to send the silicon steel sheet 90 into the pickling tank 3 for pickling, send the pickled silicon steel sheet 90 to the cleaning mechanism 6 and the drying mechanism 7 in sequence for cleaning and drying, and send the dried silicon steel sheet 90 to the detection device 5 for surface image acquisition; The host computer 9 is used to monitor the pickling device 2, the detection device 5, the cleaning mechanism 6, the drying mechanism 7 and the transportation mechanism 8, and perform grain detection on the silicon steel sheet 90 according to the surface image.

[0030] During operation, the silicon steel sheet 90 can be loaded onto the transport mechanism 8 manually or by an automatic device (such as a robotic arm), and then the transport mechanism 8 sends the silicon steel sheet 90 to the pickling chamber 101 for pickling, cleaning and drying. The transport mechanism 8 then sends the silicon steel sheet 90 to the detection device 5 for surface image acquisition, and finally the host computer 9 performs grain detection on the silicon steel sheet 90 according to the surface image (detecting the grain size and morphology of the silicon steel sheet). By using the above-mentioned silicon steel sheet grain detection system, the pickling of the silicon steel sheet 90 can be automatically completed in the closed pickling chamber 101 without manual intervention, which is highly safe; in addition, after pickling, it is first cleaned and dried, and then immediately sent to the detection chamber 102 for grain detection. On the one hand, it can avoid oxidation and discoloration of the silicon steel sheet 90 (the reasons include: the waiting time after pickling and before detection is short, and the surface of the silicon steel sheet 90 is clean and dry, and the oxidation speed is slow, so the silicon steel sheet 90 does not fully react with the oxygen in the air to oxidize), improve the accuracy of the detection result, and on the other hand, improve work continuity and work efficiency.

[0031] The host computer 9 may be, but is not limited to, an industrial computer or a personal computer.

[0032] In some preferred embodiments, see Figure 2 The pickling device 2 also includes a circulation pump 10, and the pickling tank 3 is provided with a plurality of circulation holes 301, at least one circulation hole 301 is connected to the input port of the circulation pump 10, and at least one circulation hole 301 is connected to the output port of the circulation pump 10; the circulation pump 10 is electrically connected to the host computer 9, and is used to circulate the acid in the pickling tank 3 to impact the silicon steel sheet 90.

[0033] On the one hand, the circulation of the acid solution can ensure the uniformity of the acid concentration of the acid solution, thereby improving the pickling effect. On the other hand, the impact effect can accelerate the shedding of the surface coating (protective film or insulating coating) of the silicon steel sheet 90 and speed up the chemical reaction process, thereby shortening the pickling time and further improving work efficiency.

[0034] Furthermore, at least two circulation holes 301 are respectively arranged on opposite sides of the pickling tank 3, so that the acid solution circulates in a larger range, the acid concentration of the acid solution is more uniform, and the various positions of the silicon steel sheet 90 are more effectively impacted. The number and distribution position of the circulation holes 301 can be adjusted according to actual needs.

[0035] The host computer 9 is also used to adjust the power of the circulation pump 10 to adjust the flow rate of the acid solution, thereby adjusting the impact effect on the silicon steel sheet 90. For example, the optimal power at different acid concentrations and different temperatures can be obtained in advance through experiments, and the power of the circulation pump 10 can be adjusted to the corresponding optimal power in real time according to the temperature and acid concentration of the acid solution in the pickling tank 3.

[0036] In some possible implementations, see Figure 2 The pickling tank 3 is provided with an ultrasonic generator 302, which is electrically connected to the host computer 9 and is used to generate ultrasonic waves to improve the pickling efficiency.

[0037] There are many tiny holes and cracks in the surface coating (protective film or insulating coating) at the microscopic level. Ultrasonic waves can fill these holes and cracks with acid, increase the contact area of ​​the chemical reaction, and thus increase the reaction speed, which can further shorten the pickling time and improve the pickling efficiency.

[0038] The number and distribution positions of the ultrasonic generating devices 302 can be set according to actual needs.

[0039] The host computer 9 is also used to adjust the frequency and working time of the ultrasonic wave emitted by the ultrasonic wave generator 302. For example, the reference frequency and reference time corresponding to the surface coatings of different types and thicknesses can be obtained in advance through experiments (under the reference frequency and reference time conditions, the surface coatings of the corresponding types and thicknesses can be guaranteed to have a better shedding effect), and the ultrasonic wave frequency and working time of the ultrasonic wave generator 302 can be adjusted to the corresponding reference frequency and reference time in real time according to the type and thickness of the surface coating of the silicon steel sheet 90 (the type and thickness belong to the production process parameters of the silicon steel sheet 90 and are known quantities).

[0040] In some embodiments, see Figure 2 At least one first acid concentration detection device 303 is provided in the pickling tank 3 . The first acid concentration detection device 303 is electrically connected to the host computer 9 and is used to detect the acid concentration of the acid solution in the pickling tank 3 .

[0041] As the number of pickling increases, the acid concentration of the acid solution will decrease. In order to ensure the stable pickling effect, it is necessary to keep the acid concentration of the acid solution in the pickling tank 3 stable. Specifically, the acid storage system 4 extracts the acid solution in the pickling tank 3 and transports the acid solution with a higher acid concentration to the pickling tank 3, so that the acid concentration of the acid solution in the pickling tank 3 is stabilized within the target concentration range (the target concentration range can be set according to actual needs). This process is carried out under the control of the host computer 9. The acid concentration of the acid solution in the pickling tank 3 is detected by the first acid concentration detection device 303 and fed back to the host computer 9 as input information for the host computer 9 to control the operation of the acid storage system 4, so that the acid concentration of the acid solution in the pickling tank 3 can be adjusted more timely and accurately.

[0042] The number and distribution position of the first acid concentration detection device 303 can be set according to actual needs. When there are multiple first acid concentration detection devices 303, the host computer 9 can use the average value or weighted average value of each first acid concentration detection device 303 as the final detection result of the acid concentration, and control the acid storage system 4 to adjust the acid concentration of the acid solution in the pickling tank 3 accordingly.

[0043] In some embodiments, see Figure 2 At least one temperature sensor 304 is provided in the pickling tank 3, and a heating device 305 is provided on at least one side wall of the pickling tank 3; the temperature sensor 304 is electrically connected to the host computer 9 and is used to detect the temperature of the acid solution in the pickling tank 3; the heating device 305 is electrically connected to the host computer 9 and is used to heat the acid solution in the pickling tank 3.

[0044] In fact, in order to ensure the pickling effect, the temperature of the acid solution needs to be kept within a certain range. By setting a temperature sensor 304, the temperature of the acid solution can be detected in real time. When the temperature drops to the minimum temperature threshold, the upper computer 9 controls the heating device 305 to heat. When the temperature reaches the maximum temperature threshold, the upper computer 9 controls the heating device 305 to stop heating, so that the temperature of the acid solution is kept within the required range.

[0045] Specifically, see Figure 3 The acid storage system 4 includes at least one new acid tank 401, at least one waste acid tank 402, a delivery pump 403 and a reflux pump 404. The new acid tank 401 and the waste acid tank 402 are both provided with an output pipe 405. The waste acid tank 402 also includes an input pipe 406. The input port of the delivery pump 403 is connected to each output pipe 405, the output port of the delivery pump 403 is connected to the pickling tank 3, the output port of the reflux pump 404 is connected to each input pipe 406, and the input port of the reflux pump 404 is connected to the pickling tank 3; the new acid tank 401 It is used to store unused new acid solution (the acid concentration of the new acid solution is higher than the upper limit of the target concentration range), and the waste acid tank 402 is used to store used waste acid solution; the delivery pump 403 and the reflux pump 404 are both electrically connected to the host computer 9, the reflux pump 404 is used to transport the waste acid solution from the pickling tank 3 to the waste acid tank 402, and the delivery pump 403 is used to extract acid solution from the new acid tank 401 and the waste acid tank 402, mix them, and then send them into the pickling tank 3, so that the acid concentration of the acid solution in the pickling tank 3 is kept within the target concentration range.

[0046] The delivery pump 403 mixes the new acid solution and the waste acid solution and then inputs it into the pickling tank 3. On the one hand, it can realize the recycling of the waste acid solution and reduce costs. On the other hand, compared with directly inputting new acid solution, it can reduce the degree of uneven distribution of acid concentration in the pickling tank 3.

[0047] The pickling tank 3 is provided with at least one acid inlet 306 and at least one acid outlet 307, the output port of the delivery pump 403 is connected to the acid inlet 306, and the input port of the reflux pump 404 is connected to the acid outlet 307. The number and distribution positions of the acid inlet 306 and the acid outlet 307 can be set according to actual needs.

[0048] Furthermore, in order to improve the mixing effect of the new acid solution and the waste acid solution, a mixer 407 (such as a vortex mixer) may be connected to the output of the delivery pump 403 , and the acid solution first passes through the mixer 407 and then enters the pickling tank 3 .

[0049] Preferably, see Figure 3 Each new acid tank 401 and each waste acid tank 402 is provided with a second acid concentration detection device 408 for detecting the acid concentration of the acid solution, and the second acid concentration detection device 408 is electrically connected to the host computer 9.

[0050] The mixing ratio of the new acid solution and the waste acid solution needs to be calculated based on the acid concentration of the new acid solution and the acid concentration of the waste acid solution. The calculation process is executed by the host computer 9. The acid concentration of the new acid solution and the acid concentration of the waste acid solution are measured by the second acid concentration detection device 408 and fed back to the host computer 9. In this way, the acid concentration of the acid solution in the pickling tank 3 can be accurately controlled.

[0051] Furthermore, an electromagnetic switch valve 409 and a flow meter 410 are provided at the outlet of each output pipe 405 , and both the electromagnetic switch valve 409 and the flow meter 410 are electrically connected to the host computer 9 .

[0052] In actual work, the upper computer 9 calculates the volume of acid solution to be extracted from and input into the pickling tank 3 (the two are equal and recorded as the mixed volume) and the acid concentration of the acid solution input into the pickling tank 3 (recorded as the mixed concentration) according to the acid concentration of the acid solution in the pickling tank 3, the volume of the acid solution in the pickling tank 3 (which can be calculated by measuring the liquid level or using a preset value) and the target concentration (the target concentration is within the target concentration range and can be set according to actual needs), and then calculates the output volume of the new acid solution and the waste acid solution according to the mixed concentration, the mixed volume, the acid concentration of the new acid solution and the acid concentration of the waste acid solution, monitors the output of the new acid solution and the waste acid solution through the flow meter 410, and closes the corresponding electromagnetic switch valve 409 when the output reaches the required output volume, thereby achieving accurate ratio mixing of the new acid solution and the waste acid solution, and making the acid concentration of the acid solution in the pickling tank 3 reach the target concentration.

[0053] In some embodiments, the pickling tank 3 is further provided with an overflow hole 308, and the acid storage system 4 further includes an overflow tank 411 (see Figure 3 ), the overflow hole 308 is connected to the overflow groove 411, and the overflow groove 411 is also connected to the input port of the reflux pump 404. By setting the overflow hole 308, the volume of the acid solution in the pickling tank 3 can be kept constant, so that when calculating the mixed volume and the mixed concentration, the volume of the acid solution in the pickling tank 3 can directly use the preset value, simplifying the control process.

[0054] Furthermore, the input port of the reflux pump 404 is connected to the acid discharge port 307 and the overflow tank 411 through a first selection solenoid valve 412 (a three-way solenoid valve), such as Figure 3As shown, the end b in the figure is connected to the acid discharge port 307, the end c is connected to the overflow hole 308, and the end a is connected to the acid inlet 306. When acid needs to be extracted from the pickling tank 3, the first selection solenoid valve 412 connects the acid discharge port 307 and the input port of the reflux pump 404, and when acid needs to be extracted from the overflow tank 411, the first selection solenoid valve 412 connects the overflow tank 411 and the input port of the reflux pump 404 (the first selection solenoid valve 412 is controlled by the host computer 9). Among them, a liquid level meter can be set in the overflow tank 411 to detect the liquid level height, and when the liquid level height in the overflow tank 411 reaches a preset threshold (which can be set according to actual needs), acid is extracted from the overflow tank 411.

[0055] In fact, switch valves (electromagnetic valves controlled by the host computer 9 ) may be respectively provided at the acid discharge port 307 and the outlet of the overflow tank 411 to realize the gating function.

[0056] The number of the new acid tank 401 and the waste acid tank 402 can be set according to actual needs. Preferably, a plurality of waste acid tanks 402 are provided. Figure 3 In the embodiment, one new acid tank 401 is provided, and two waste acid tanks 402 are provided.

[0057] When there is more than one waste acid tank 402, the acid liquid extracted from the pickling tank 3 can be input into one of the waste acid tanks 402, and the waste acid liquid extracted from the other waste acid tanks 402 is mixed with the new acid liquid and then sent to the pickling tank 3. In this way, the acid liquid can be extracted from the pickling tank 3 and transported to the pickling tank 3 at the same time, saving time. In fact, as the acid solution is extracted from the pickling tank 3 and injected into the waste acid tank 402, the acid concentration of the injected waste acid tank 402 will change. If only one waste acid tank 402 is provided, an accurate acid concentration of the waste acid solution cannot be provided as the calculation input of the output volume of the new acid solution and the waste acid solution during the process of extracting the acid solution from the pickling tank 3, so that it is difficult to ensure the stable control of the acid concentration of the acid solution in the pickling tank 3. Therefore, the acid solution extraction from the pickling tank 3 can only be completed first to obtain a stable acid concentration of the waste acid solution, and then the output volume calculation of the new acid solution and the waste acid solution is performed, and finally the new acid solution and the waste acid solution are mixed and transported, which consumes more time. When multiple waste acid tanks 402 are provided, one of them is used to receive the acid solution extracted from the pickling tank 3, and the acid concentration of the acid solution in the other waste acid tanks 402 is not affected, so that the output volume calculation of the new acid solution and the waste acid solution can be performed immediately, and mixed and transported according to the calculation results, thereby saving time.

[0058] When multiple waste acid tanks 402 are provided, the output port of the reflux pump 404 can be communicated with the input pipe 406 of each waste acid tank 402 through a second selection solenoid valve 413, and the second selection solenoid valve 413 is controlled by the host computer 9. Thus, the waste acid tank 402 can be selected to be communicated with the reflux pump 404 according to actual needs, so as to send the acid solution into the corresponding waste acid tank 402.

[0059] In fact, a switch valve (which is a solenoid valve controlled by the host computer 9 ) may be provided at the inlet of each input pipe 406 to realize the gating function.

[0060] Further, a liquid level detection device 414 may be provided in each new acid tank 401 and each waste acid tank 402 for detecting the internal liquid level height, and each liquid level detection device 414 is electrically connected to the host computer 9. When the liquid level of the new acid tank 401 is too low, a liquid replenishment reminder may be issued by the host computer 9, and the user may be notified to replenish the new acid liquid or replace the new acid tank 401 in time; when the waste acid tank 402 is full (i.e., when the liquid level reaches the upper limit), the host computer 9 switches the passage by controlling the second selection solenoid valve 413 or the switch valve at the entrance of each input pipe 406, so as to input the waste acid liquid into the unfilled waste acid tank 402, and when all the waste acid tanks 402 are full or about to be fully filled, a full load reminder may be issued by the host computer 9, and the user may be notified to replace the waste acid tank 402 in time.

[0061] In order to facilitate the replacement and movement of the new acid tank 401 and the waste acid tank 402, each new acid tank 401 and each waste acid tank 402 can be placed on a movable base 415 with a locking function, for example, the movable base 415 has self-locking rollers.

[0062] In this embodiment, see Figure 1 The transport mechanism 8 includes a gantry crane lifting device 11 and a hollow loading frame 12 . The hollow loading frame 12 is used to load the silicon steel sheet 90 , and the gantry crane lifting device 11 is used to lift the hollow loading frame 12 .

[0063] The hollow loading frame 12 adopts a hollow structure. When the gantry crane lifting device 11 lifts the hollow loading frame 12 into the pickling tank 3, the acid liquid can enter the hollow loading frame 12 and contact the silicon steel sheet 90, thereby achieving pickling.

[0064] The gantry crane hoisting device 11 includes a guide rail beam spanning the pickling chamber 101 and the inspection chamber 102 and a gantry crane movably arranged on the guide rail beam. The guide rail beam and the gantry crane are prior arts and will not be described in detail here.

[0065] In some embodiments, see Figure 4 The hollow loading frame 12 includes a base frame 1201 and at least one mounting frame 1202 connected to the base frame 1201. The mounting frame 1202 includes two parallel beams 1203 and two parallel clamp beams 1204. The two ends of the clamp beam 1204 are respectively slidably connected to the two beams 1203 so that the distance between the two clamp beams 1204 is adjustable. The two clamp beams 1204 can respectively clamp the two ends of multiple silicon steel sheets 90.

[0066] Multiple silicon steel sheets 90 can be fixed on the mounting frame 1202 at the same time through the two clamp beams 1204, so that multiple silicon steel sheets 90 can be pickled at the same time, further improving efficiency.

[0067] Preferably, the mounting frame 1202 is detachably connected to the base frame 1201. Thus, the mounting frame 1202 can be taken out of the base frame 1201, clamped with the silicon steel sheet 90, and then put back into the base frame 1201, which improves the convenience of the clamping operation of the silicon steel sheet 90.

[0068] There are many ways to achieve a detachable connection between the mounting frame 1202 and the base frame 1201, such as a snap connection or a screw connection.

[0069] For example Figure 4 In the figure, mounting heads 1209 are provided at both ends of the crossbeam 1203, and the mounting heads 1209 are provided with first pin holes. Positioning grooves 1205 which are matched with each mounting head 1209 and extend in the up-down direction are provided on the base frame 1201. Each positioning groove 1205 is provided with a plurality of second pin holes which are arranged at intervals in the up-down direction, and the second pin holes penetrate the positioning groove 1205 in the transverse direction. The mounting heads 1209 at both ends of each crossbeam 1203 can be respectively inserted into the corresponding two positioning grooves 1205, and are locked by the positioning pins which pass through the first pin hole and the second pin hole.

[0070] When in use, each mounting head 1209 of the mounting frame 1202 can be placed from top to bottom into each positioning groove 1205, and after adjusting the height position, the positioning pin can be inserted to lock it. Therefore, the number and height position of the mounting frame 1202 can be adjusted according to actual needs to improve applicability.

[0071] The base frame 1201 is a frame structure, for example Figure 4 In the embodiment, the base frame 1201 includes a rectangular bottom frame 1206 and two portal frames 1207 disposed at opposite ends of the rectangular bottom frame 1206, and positioning grooves 1205 are disposed on the two uprights of each portal frame 1207. At least one lifting lug 1208 is also disposed on the top of each portal frame 1207 for connecting with the gantry crane lifting device 11. The base frame 1201 of this structure has less shielding to the acid liquid, and the acid liquid can smoothly enter and exit the base frame 1201 to impact the silicon steel sheet 90, and the overall structural strength after being connected with the mounting frame 1202 is relatively strong.

[0072] Furthermore, a plurality of support blocks 309 may be provided at the bottom of the pickling tank 3 to support the base frame 1201 so that the bottom of the base frame 1201 leaves the bottom of the pickling tank 3, thereby allowing the silicon steel sheet 90 located at the lower part of the base frame 1201 to be more fully in contact with the flowing acid solution, thereby improving the pickling effect.

[0073] The function of the clamp beam 1204 to clamp a plurality of silicon steel sheets 90 simultaneously can be achieved through a variety of structures.

[0074] For example, Figure 5 In the figure, the fixture beam 1204 includes a hollow beam tube 13 with closed ends, an axle rod 14 penetrating the beam tube 13 along the axial direction of the beam tube 13, and a plurality of clips 15 fixedly connected to the axle rod 14. A plurality of slots 1301 connecting the inner cavity of the beam tube 13 are provided at the lower part of the beam tube 13. The upper ends of the slots 1301 are higher than the lower ends of the clips 15. The slots 1301 are arranged at equal intervals along the axial direction of the beam tube 13. The clips 15 are arranged at equal intervals along the axial direction of the axle rod 14. The intervals between adjacent slots 1301 are equal to the intervals between adjacent clips 15. The axle rod 14 can slide axially relative to the beam tube 13, and one end of the axle rod 14 is provided with an external thread 1401. The end of the axle rod 14 provided with the external thread 1401 extends out of the beam tube 13 and is connected to a nut 16.

[0075] When clamping the silicon steel sheets 90, the upper sides of the plurality of silicon steel sheets 90 are respectively inserted into the slots 1301, and then the nut 16 is rotated to move the shaft 14 axially, so that each clamping piece 15 presses each silicon steel sheet 90 against the corresponding slot 1301 to achieve clamping, which is convenient and quick to operate.

[0076] In order to prevent the shaft 14 from rotating with the nut 16, a slide groove extending axially can be provided on the circumferential surface of the end of the shaft 14, and a limit key can be provided in the axial hole on the beam tube 13 for the shaft 14 to pass through, so that the limit key extends into the slide groove, thereby neither hindering the sliding of the shaft 14 nor limiting the rotation of the shaft 14.

[0077] Furthermore, a dovetail groove extending axially can be set at the bottom of the crossbeam 1203, and sliders 1302 adapted to the dovetail groove can be set at the tops of both ends of the beam tube 13. The two sliders 1302 of the beam tube 13 are respectively slidably set in the dovetail grooves of the two crossbeams 1203 to realize the sliding connection between the clamp beam 1204 and the crossbeam 1203.

[0078] or for example, Figure 6 The fixture beam 1204 structure in the Figure 5 Compared with the fixture beam 1204, the difference lies in the structure for providing the axial force for the shaft rod 14. Figure 5 In the embodiment, the structure for providing axial force to the shaft 14 is the external thread 1401 and the nut 16. Figure 6In the figure, the structure for providing axial force for the shaft rod 14 includes a spring 17, which is sleeved on the shaft rod 14, one end of which is connected to the inner wall of the beam tube 13, and the other end is connected to the shaft rod 14 or one of the clips 15; when in use, the shaft rod 14 is first dragged to the side opposite to the spring force of the spring 17, and then the upper sides of multiple silicon steel sheets 90 are respectively inserted into each slot 1301, and finally the shaft rod 14 is released, and the shaft rod 14 can press each silicon steel sheet 90 to the corresponding slot 1301 through the clip 15 under the action of the spring force.

[0079] The spring 17 may be a compression spring or a tension spring. When the spring 17 is a compression spring, dragging the shaft 14 to the side opposite to the spring force of the spring 17 means dragging the shaft 14 in the direction of compressing the spring 17, and when the spring 17 is a tension spring, dragging the shaft 14 to the side opposite to the spring force of the spring 17 means dragging the shaft 14 in the direction of stretching the spring 17.

[0080] In order to facilitate the dragging operation of the shaft rod 14, a force applying handle 1402 may be provided at one end of the shaft rod 14. Figure 6 shown.

[0081] Furthermore, a radially protruding block 1403 can be provided at the end of the shaft rod 14 opposite to the spring force of the spring 17 (for example, if the direction of the spring force applied by the spring 17 to the shaft rod 14 is to the left, the block 1403 is provided at the right end of the shaft rod 14; if the direction of the spring force applied by the spring 17 to the shaft rod 14 is to the right, the block 1403 is provided at the left end of the shaft rod 14), and a through groove 1303 axially penetrating the inside and outside of the beam tube 13 is provided on the circumferential surface of the axial hole on the beam tube 13 through which one end of the shaft rod 14 having the block 1403 passes, and the block 1403 can extend into the through groove 1303 and slide along the through groove 1303.

[0082] When clamping the silicon steel sheet 90, when dragging the shaft rod 14 to the side opposite to the spring force of the spring 17, the block 1403 can be dragged to the outside of the beam tube 13, and then the shaft rod 14 is rotated to make the block 1403 misaligned with the through groove 1303. At this time, the shaft rod 14 is released and the shaft rod 14 cannot be reset or moved. Therefore, the operator does not need to continuously apply force to the shaft rod 14 to keep the shaft rod 14 stationary. After all the silicon steel sheets 90 are inserted into the slots 1301, it is only necessary to rotate the shaft rod 14 again to align the block 1403 with the through grooves 1303. The shaft rod 14 can be reset and moved under the action of the spring force to press each silicon steel sheet 90 to the corresponding slot 1301 through the clamp 15, thereby further improving the convenience of the clamping operation.

[0083] Among them, one or more blocks 1403 and through slots 1303 can be provided, and the specific adjustment is made according to actual needs.

[0084] In some embodiments, see Figure 1 A first passage and a first electric hatch 103 are provided between the pickling chamber 101 and the testing chamber 102; the first passage is used for the transportation mechanism 8 to pass through, so that the transportation mechanism 8 can move back and forth between the pickling chamber 101 and the testing chamber 102; the first electric hatch 103 is electrically connected to the host computer 9, and can close and open the first passage.

[0085] Except when the transport mechanism 8 needs to open the first electric door 103 when passing between the pickling chamber 101 and the inspection chamber 102, the first electric door 103 is closed at other times to prevent the acid mist in the pickling chamber 101 from entering the inspection chamber 102 and causing damage to personnel and equipment.

[0086] Further, see Figure 1 A second through port and a second electric hatch 104 may be provided in the pickling chamber 101; the second through port is used for the transportation mechanism 8 to pass through, so that the transportation mechanism 8 can be moved outside the cabin 1 to load the silicon steel sheet 90; the second electric hatch 104 is electrically connected to the host computer 9 and can close and open the second through port.

[0087] After a batch of silicon steel sheets 90 are pickled and sent to the inspection room 102 for grain inspection, the transport mechanism 8 can be moved outside the cabin 1 to load the next batch of silicon steel sheets 90 and send them to the pickling room 101 for pickling. On the one hand, the work continuity and work efficiency can be further improved. On the other hand, the process of loading silicon steel sheets 90 is completed outside the cabin 1, which avoids the operator from being exposed to acid mist and improves safety.

[0088] Preferably, see Figure 1 The pickling chamber 101 is provided with an exhaust device 18, an air inlet 19 and an acid mist concentration detection device 20, and the exhaust device 18 and the acid mist concentration detection device 20 are both electrically connected to the host computer 9. Before the dried silicon steel sheet 90 is sent into the detection chamber 102, the acid mist concentration of the pickling chamber 101 is first detected by the acid mist concentration detection device 20. When the acid mist concentration is too high, the exhaust device 18 is opened for exhaust. The first electric hatch 103 is opened and the dried silicon steel sheet 90 is sent into the detection chamber 102 until the acid mist concentration meets the requirements, so as to reduce the acid mist from entering the detection chamber 102.

[0089] The exhaust device 18 can be connected to an external purification system to purify the exhaust gas. A filter device can be provided at the air inlet 19 to prevent dust or other debris from entering the pickling chamber 101.

[0090] Furthermore, a transparent observation window or a transparent observation door may be provided on the side wall of the pickling chamber 101 so that the user can observe the pickling situation outside the chamber 1 .

[0091] The cleaning mechanism 6 includes a plurality of nozzles and a water supply system for delivering cleaning water to the nozzles.

[0092] The drying mechanism 7 may include a plurality of hot air blowers to blow hot air to the silicon steel sheet 90 for drying, but is not limited thereto.

[0093] Specifically, see Figure 1 The detection device 5 includes a detection platform 501 and a camera 502 (preferably a high-definition camera) and a light source 503 arranged above the detection platform 501. The camera 502 and the light source 503 are both electrically connected to the host computer 9.

[0094] During operation, the silicon steel sheet 90 is taken out from the transport mechanism 8 and placed on the inspection table 501, and then the surface image of the silicon steel sheet 90 is collected by the camera 502 and sent to the host computer 9. The light source 503 is used to provide a lighting environment to improve the clarity of the surface image.

[0095] The operation of taking out the silicon steel sheet 90 from the transport mechanism 8 and placing it into the testing platform 501 can be performed manually or by using a robot arm (in this case, the testing device 5 also includes a robot arm).

[0096] In this document, relational terms such as first and second, etc. are used merely to distinguish one entity or operation from another entity or operation, but do not necessarily require or imply any such actual relationship or order between these entities or operations.

[0097] The above description is only an embodiment of the present application and is not intended to limit the protection scope of the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A silicon steel sheet grain detection system, characterized in that: include: A cabin (1) is provided with a pickling chamber (101) and a detection chamber (102); A pickling device (2) is arranged in the pickling chamber (101) and comprises a pickling tank (3) and an acid storage system (4), wherein the pickling tank (3) is used to pickle the silicon steel sheet (90), and the acid storage system (4) is used to provide acid liquid to the pickling tank (3) and recover the acid liquid in the pickling tank (3); A detection device (5) is arranged in the detection chamber (102) and is used to collect a surface image of the silicon steel sheet (90); A cleaning mechanism (6) is arranged above the pickling tank (3) and is used to clean the silicon steel sheet (90) after pickling to remove acid liquid adhering to the silicon steel sheet (90); A drying mechanism (7) is arranged in the pickling chamber (101) and is used to dry the silicon steel sheet (90) after the cleaning process; The transport mechanism (8) is capable of traveling back and forth between the pickling chamber (101) and the detection chamber (102), and is used to transport the silicon steel sheet (90) into the pickling tank (3) for pickling, transport the pickled silicon steel sheet (90) to the cleaning mechanism (6) and the drying mechanism (7) in sequence for cleaning and drying, and transport the dried silicon steel sheet (90) to the detection device (5) for surface image acquisition; The host computer (9) is used to monitor the pickling device (2), the detection device (5), the cleaning mechanism (6), the drying mechanism (7) and the transportation mechanism (8), and to perform grain detection on the silicon steel sheet (90) according to the surface image.

2. The silicon steel sheet grain detection system according to claim 1, characterized in that: The pickling device (2) also includes a circulation pump (10), the pickling tank (3) is provided with a plurality of circulation holes (301), at least one of the circulation holes (301) is connected to the input port of the circulation pump (10), and at least one of the circulation holes (301) is connected to the output port of the circulation pump (10); the circulation pump (10) is electrically connected to the host computer (9), and is used to circulate the acid solution in the pickling tank (3) to impact the silicon steel sheet (90).

3. The silicon steel sheet grain detection system according to claim 1, characterized in that: The pickling tank (3) is provided with an ultrasonic wave generating device (302), which is electrically connected to the host computer (9) and is used to generate ultrasonic waves to improve the pickling efficiency.

4. The silicon steel sheet grain detection system according to claim 1, characterized in that: The acid storage system (4) comprises at least one new acid tank (401), at least one waste acid tank (402), a delivery pump (403) and a reflux pump (404), wherein the new acid tank (401) and the waste acid tank (402) are both provided with an output pipe (405), and the waste acid tank (402) further comprises an input pipe (406), the input port of the delivery pump (403) is communicated with each of the output pipes (405), the output port of the delivery pump (403) is communicated with the pickling tank (3), the output port of the reflux pump (404) is communicated with each of the input pipes (406), and the input port of the reflux pump (404) is communicated with the The pickling tank (3) is connected; the new acid tank (401) is used to store unused new acid liquid, and the waste acid tank (402) is used to store used waste acid liquid; the delivery pump (403) and the reflux pump (404) are both electrically connected to the host computer (9), the reflux pump (404) is used to transport the waste acid liquid from the pickling tank (3) to the waste acid tank (402), and the delivery pump (403) is used to extract acid liquid from the new acid tank (401) and the waste acid tank (402), mix them, and then send them into the pickling tank (3), so that the acid concentration of the acid liquid in the pickling tank (3) is maintained within the target concentration range.

5. The silicon steel sheet grain detection system according to claim 4, characterized in that: Each of the new acid tanks (401) and each of the waste acid tanks (402) is provided with a second acid concentration detection device (408) for detecting the acid concentration of the acid solution, and the second acid concentration detection device (408) is electrically connected to the host computer (9).

6. The silicon steel sheet grain detection system according to claim 4, characterized in that: An electromagnetic switch valve (409) and a flow meter (410) are provided at the outlet of each output pipe (405), and the electromagnetic switch valve (409) and the flow meter (410) are both electrically connected to the host computer (9).

7. The silicon steel sheet grain detection system according to claim 1, characterized in that: The transport mechanism (8) comprises a gantry crane lifting device (11) and a hollow cargo frame (12), wherein the hollow cargo frame (12) is used to load silicon steel sheets (90), and the gantry crane lifting device (11) is used to lift the hollow cargo frame (12).

8. The silicon steel sheet grain detection system according to claim 7, characterized in that: The hollow loading frame (12) comprises a base frame (1201) and at least one mounting frame (1202) connected to the base frame (1201); the mounting frame (1202) comprises two parallel cross beams (1203) and two parallel clamp beams (1204); the two ends of the clamp beam (1204) are respectively slidably connected to the two cross beams (1203) so that the distance between the two clamp beams (1204) is adjustable; the two clamp beams (1204) can respectively clamp the two ends of a plurality of silicon steel sheets (90).

9. The silicon steel sheet grain detection system according to claim 8, characterized in that: The mounting frame (1202) and the base frame (1201) are connected in a detachable manner.

10. The silicon steel sheet grain detection system according to claim 8, characterized in that: The fixture beam (1204) comprises a hollow beam tube (13) with closed ends, an axial rod (14) passing through the beam tube (13) along the axial direction of the beam tube (13), and a plurality of clips (15) fixedly connected to the axial rod (14); a plurality of slots (1301) communicating with the inner cavity of the beam tube (13) are provided at the lower part of the beam tube (13); the upper end of the slot (1301) is higher than the lower end of the clip (15); and each of the slots (1301) is arranged along the axial direction of the beam tube (13). The clips (15) are arranged axially at equal intervals, and the intervals between adjacent notches (1301) and the intervals between adjacent clips (15) are equal; the shaft (14) can slide axially relative to the beam tube (13), and one end of the shaft (14) is provided with an external thread (1401), and the end of the shaft (14) provided with the external thread (1401) extends out of the beam tube (13) and is connected to a nut (16).

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