Amorphous motor core stamping equipment and process

Abstract

The present application discloses an amorphous motor core stamping device, including a first conveyor belt arranged between an amorphous strip coil and a progressive punch press, used to convey the amorphous strip coil to the progressive punch press, the progressive punch press is used to stamp the amorphous strip coil into a stamping intermediate, the other end of the progressive punch press is connected to a second conveyor belt, used to convey the stamping intermediate to the bottom of a blanking punch, a locking ring is arranged below the blanking punch, a heating device is arranged at the outer periphery of the locking ring and a draw plate is arranged at the bottom, the heating device heats and solidifies the colloid on the bottom surface of the punch sheet to obtain an iron core, when the punch sheet reaches a preset number, the draw plate is withdrawn, and the finished iron core falls to the third conveyor belt below the draw plate, the third conveyor belt is used to convey the finished iron core to a preset area, which can improve the life of the stamping die, reduce the cost of processing, improve the efficiency of processing, ensure product consistency and the accuracy of processing size, and improve product performance. The present application also discloses an amorphous motor core stamping process.

Description

Technical Field

[0001] The invention belongs to the technical field of amorphous motor core processing, and in particular relates to amorphous motor core stamping equipment and a process. Background Art

[0002] Existing processing methods for amorphous motor cores include wire cutting, laser cutting and multi-layer strip stamping. Among them, wire cutting and laser cutting methods produce a molten layer due to the large current during processing, which will increase material loss, and the processing efficiency is low, and mass production is impossible. The existing multi-layer strip stamping method is to stamp multiple layers of silicon steel original strips, but this is only applicable to silicon steel. Since amorphous is about 5 times harder than silicon steel, it is impossible to use stamping dies for silicon steel to stamp amorphous because it cannot meet the requirements of stamping forming and stamping life. Blade chipping is very likely to occur during the stamping process. In addition, during multi-layer stamping, the stress of each layer of strip is different, which will cause the punching surface to be uneven and there will be extrusion or tearing sections. During the stamping process of the original strip, the wear of the mold will also be very serious, resulting in a low mold service life. This not only places higher requirements on the mold, but also greatly increases the mold cost. At the same time, during the product production process, the low loss advantage of amorphous is reduced, and the expected production effect of amorphous motor core cannot be achieved. Summary of the invention

[0003] To solve the above problems, the present invention provides an amorphous motor core stamping device and process, which can increase the life of the stamping die, reduce the processing cost, improve the processing efficiency, ensure product consistency and processing size accuracy, and improve product performance.

[0004] An amorphous motor core stamping device provided by the present invention includes a first conveyor belt arranged between an amorphous strip coil and a progressive punch, the first conveyor belt is used to convey the amorphous strip coil to the progressive punch, the progressive punch is used to punch the amorphous strip coil into a stamping intermediate that is not completely separated from the strip, the other end of the progressive punch is connected to a second conveyor belt, the second conveyor belt is used to convey the stamping intermediate to the bottom of the blanking punch, a locking ring for accommodating the punching sheet is arranged below the blanking punch, a heating device is arranged on the outer periphery of the locking ring and a drawing plate is arranged on the bottom, the heating device is used to heat and solidify the colloid on the bottom surface of the punching sheet to obtain an iron core, when the punching sheet reaches a preset number, the drawing plate is controlled to be drawn away so that the finished iron core falls to the third conveyor belt below the drawing plate, and the third conveyor belt is used to convey the finished iron core to a preset area.

[0005] Preferably, in the above-mentioned amorphous motor core stamping equipment, a glue dispenser is arranged next to the blanking punch for dispensing glue on the bottom surface of the stamping intermediate body before the blanking punch breaks the connection points of the stamping intermediate body into punching sheets.

[0006] Preferably, the above-mentioned amorphous motor core stamping equipment further comprises a glue coating device arranged before the amorphous strip coil, which is used to coat glue on the back side of the amorphous strip coil.

[0007] Preferably, the above-mentioned amorphous motor core stamping equipment further includes a heat treatment device arranged before the amorphous strip coil is coiled, which is used to heat the amorphous strip coil to a preset temperature before the amorphous strip coil enters the first conveyor belt.

[0008] Preferably, in the above-mentioned amorphous motor core stamping equipment, a shearing device is further provided before the heat treatment device, for shearing the large roll of amorphous raw strip into the amorphous strip coils.

[0009] Preferably, the above-mentioned amorphous motor core stamping equipment also includes a multi-layer rolling device, a vacuum impregnation device and a drying device which are connected in sequence and arranged between the heat treatment device and the progressive punch press, and are used to make multiple single-layer rolls into a multi-layer solidified whole roll.

[0010] The present invention provides an amorphous motor core stamping process, using the amorphous motor core stamping equipment as described above, comprising the following steps:

[0011] Using a first conveyor belt, the amorphous strip coil is conveyed to a progressive punch press;

[0012] Using the progressive punch press to punch the amorphous strip coil into a punched intermediate that is not completely separated from the strip;

[0013] Using a second conveyor belt, conveying the stamping intermediate to below the blanking punch;

[0014] The colloid on the bottom surface of the punch is heated and solidified by using a heating device arranged on the outer periphery of the locking ring arranged below the blanking punch to obtain an iron core;

[0015] When the number of the punching sheets reaches a preset number, the drawer plate at the bottom of the locking ring is controlled to be withdrawn, so that the finished iron core falls onto the third conveyor belt below the drawer plate;

[0016] The finished iron core is conveyed to a preset area by using the third conveyor belt.

[0017] Preferably, in the above-mentioned amorphous motor core stamping process, the amorphous motor core stamping equipment further includes a glue dispenser arranged next to the blanking punch, and the process further includes:

[0018] Before the blanking punch punches the connection points of the stamping intermediate body into punching sheets, glue is dispensed onto the bottom surface of the stamping intermediate body.

[0019] Preferably, in the above-mentioned amorphous motor core stamping process, the amorphous motor core stamping equipment further includes a glue coating device arranged before the amorphous strip is coiled, and the process further includes:

[0020] Before the amorphous strip coil is transferred to the progressive punch press, the glue coating device is used to coat glue on the back side of the amorphous strip coil.

[0021] Preferably, in the above-mentioned amorphous motor core stamping process, the amorphous motor core stamping equipment further includes a heat treatment device provided before the amorphous strip is coiled, and the process further includes:

[0022] Before the amorphous ribbon coil enters the first conveyor belt, it is heated to a preset temperature.

[0023] From the above description, it can be known that the above-mentioned amorphous motor core stamping equipment provided by the present invention includes a first conveyor belt arranged between the amorphous strip coil and the progressive punch, the first conveyor belt is used to convey the amorphous strip coil to the progressive punch, the progressive punch is used to punch the amorphous strip coil into a stamping intermediate that is not completely separated from the strip, and the other end of the progressive punch is connected to a second conveyor belt, the second conveyor belt is used to convey the stamping intermediate to the bottom of the blanking punch, a locking ring for accommodating the punching sheet is arranged below the blanking punch, a heating device is arranged on the outer periphery of the locking ring and a drawing plate is arranged on the bottom, the heating device is used to heat and solidify the colloid on the bottom surface of the punching sheet to obtain the iron core, and when the punching sheet reaches a preset number, the drawing plate is controlled to be drawn away so that the finished iron core falls to the third plate below the drawing plate. Conveyor belt, the third conveyor belt is used to convey the finished iron core to a preset area, so there is no need to go through multi-layer winding, dipping, draining, baking and other processes like the prior art, reducing the turnover of amorphous materials, bending stress, thermal stress and other processes, while ensuring the performance advantages of amorphous materials, reducing the traditional processing time cost, water and electricity cost, labor cost, etc., improving production economy, and can effectively reduce material loss caused by heat generated during processing, improve motor performance and production efficiency, and this solution directly adopts single-layer roll stamping, and simultaneously realizes the external mold superposition technology, first stamping once without breaking, and then stamping again to break, reducing the punching force of the material, so that this solution can increase the life of the stamping die, reduce processing costs, improve processing efficiency, ensure product consistency and processing size accuracy, and improve product performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0025] Figure 1 A schematic diagram of an embodiment of an amorphous motor core stamping device provided by the present invention;

[0026] Figure 2 It is a schematic diagram of a specific embodiment of an amorphous motor core stamping device;

[0027] Figure 3 It is a schematic diagram of another specific embodiment of an amorphous motor core stamping device;

[0028] Figure 4 It is a schematic diagram of the process of coating amorphous strip coil with self-adhesive;

[0029] Figure 5 It is a schematic diagram of the process when a glue coating device and a heat treatment device are used;

[0030] Figure 6 It is a schematic diagram of the process when a dispensing machine and a heat treatment device are used;

[0031] Figure 7 It is a schematic diagram of the stamping process of a single-layer strip after heat treatment and coiling;

[0032] Figure 8 A schematic diagram of an embodiment of an amorphous motor core stamping process provided by the present invention. DETAILED DESCRIPTION

[0033] The core of the present invention is to provide an amorphous motor core stamping device and process, which can increase the life of the stamping die, reduce the processing cost, improve the processing efficiency, ensure product consistency and processing size accuracy, and improve product performance.

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] An embodiment of an amorphous motor core stamping device provided by the present invention is as follows: Figure 1 As shown, Figure 1Schematic diagram of an embodiment of an amorphous motor core stamping device provided by the present invention, the device includes a first conveyor belt 3 arranged between an amorphous strip coil 1 and a progressive punch 2, the amorphous strip coil 1 here is also the original strip, which refers to the strip produced directly in the production process of the amorphous material, without being treated by heating, magnetizing and other means, and its thickness can be 0.025mm to 0.03mm, the first conveyor belt 3 is used to convey the amorphous strip coil 1 to the progressive punch 2, and the progressive punch 2 is used to punch the amorphous strip coil into a punch that is not completely separated from the strip It should be noted that the progressive punch press 2 uses a progressive die, which is composed of multiple stations. Each station completes different processing. The stations are sequentially related. A series of different stamping processes are completed in one stroke of the punch press. After one stroke is completed, the punch feeder moves the material forward according to a fixed step distance. In this way, multiple processes can be completed on a pair of molds, generally including punching, blanking, bending, trimming and stretching, etc. The punch head can be made of high-hardness material, such as tungsten steel, with a hardness of up to 90HRC. In this scheme, the stamping intermediate After the intermediate body has passed through the high-speed punch, preliminary punching is achieved. At this time, the punch is still on the material belt through several points of connection on the punch. The other end of the progressive punch 2 is connected to a second conveyor belt 4, which is used to convey the punched intermediate body to the bottom of the blanking punch 5. The blanking punch 5 can completely punch down the intermediate body and drop it down. A locking ring 6 for accommodating the punch is provided below the blanking punch 5, that is, the punch can fall into the locking ring 6. A heating device 7 is provided on the outer periphery of the locking ring 6 and a pumping plate 8 is provided at the bottom. The pumping plate 8 is normally In this case, the bottom of the locking ring 6 can be blocked, so that the punching sheets can be stacked together, and the above-mentioned heating device 7 is used to heat and solidify the colloid on the bottom surface of the punching sheets to obtain an iron core. When the punching sheets reach a preset number, the withdrawal plate 8 is controlled to be withdrawn. That is to say, when the number of punching sheets can meet the requirements of the iron core, the withdrawal plate 8 can be withdrawn to form a finished iron core product, so that the finished iron core product falls onto the third conveyor belt 9 under the withdrawal plate 8. The third conveyor belt 9 is used to convey the finished iron core product to a preset area, which can be a finished product storage area, thereby completing the production of the finished iron core product.

[0036] From the above description, it can be known that in the embodiment of the above-mentioned amorphous motor core stamping equipment provided by the present invention, since it includes a first conveyor belt arranged between the amorphous strip coil and the progressive punch, the first conveyor belt is used to convey the amorphous strip coil to the progressive punch, the progressive punch is used to punch the amorphous strip coil into a stamped intermediate that is not completely separated from the strip, and the other end of the progressive punch is connected to a second conveyor belt, the second conveyor belt is used to convey the stamped intermediate to the bottom of the blanking punch, and a locking ring for accommodating the punching sheet is arranged below the blanking punch, a heating device is arranged on the outer periphery of the locking ring and a drawing plate is arranged on the bottom, the heating device is used to heat and solidify the colloid on the bottom surface of the punching sheet to obtain an iron core, and when the punching sheet reaches a preset number, the drawing plate is controlled to be drawn away so that the finished iron core falls to the third conveyor belt below the drawing plate, and the third conveyor belt is used The finished iron core is transported to the preset area, so there is no need to go through multi-layer winding, dipping, draining, baking and other processes like the existing technology, reducing the turnover of amorphous materials, bending stress, thermal stress and other processes, while ensuring the performance advantages of amorphous materials, reducing the traditional processing time cost, water and electricity cost, labor cost, etc., improving production economy, and can effectively reduce the material loss caused by the heat generated by processing, improve motor performance and production efficiency, and this solution directly adopts single-layer roll stamping, and simultaneously realizes the external mold superposition technology. It is stamped once without breaking, and then stamped again to break, reducing the punching force of the material. Therefore, this solution can increase the life of the stamping die, reduce the processing cost, improve the processing efficiency, ensure product consistency and the accuracy of processing size, and improve product performance.

[0037] In a specific implementation of the above-mentioned amorphous motor core stamping equipment, for example Figure 2 As shown, Figure 2 The schematic diagram of a specific embodiment of an amorphous motor core stamping device is shown in FIG. A glue dispenser 11 is provided next to the blanking punch for dispensing glue on the bottom surface of the stamping intermediate body before the blanking punch breaks the connection point of the stamping intermediate body into a punch. In this case, before each stamping intermediate body is punched and dropped, a quick bonding glue is dispensed on its bottom surface by a glue dispenser, and then the blanking punch is used to break its connection point, and the punching sheet after being glued falls into the locking ring, and then the glue can be heated to solidify so as to bond each punching sheet into a finished core product.

[0038] In another specific embodiment of the above-mentioned amorphous motor core stamping equipment, Figure 3 As shown, Figure 3It is a schematic diagram of another specific embodiment of the amorphous motor core stamping equipment, and also includes a glue coating device 12 arranged in front of the amorphous strip coil 1, which is used to coat the back of the amorphous strip coil 1 with glue. It should be noted that in this embodiment, self-adhesive glue can be applied, and the single-layer amorphous strip coil is pre-coated with self-adhesive glue. The self-adhesive glue is solid at room temperature and does not show stickiness. It only shows stickiness when a certain temperature is reached. At this time, the stamped sheets are stacked and fixed by pressurization. The specific process can be referred to Figure 4 , Figure 4 This is a schematic diagram of the process of coating amorphous strip coils with self-adhesive glue. It can be seen that in the process of the amorphous strip coil without glue moving to the right, the steel roller is first used to drive the glue roller to wrap the glue liquid from the glue pool, and the glue liquid is coated on the back side of the amorphous strip coil, that is, the bottom side, and then enters the oven to carry out the glue solvent volatilization process. After coming out of the oven, the amorphous strip coil with glue is obtained. Of course, this is also one of the specific implementation methods. Other gluing methods can also be selected according to actual needs, which is not limited here.

[0039] Based on the above two specific embodiments of the amorphous motor core stamping equipment, a heat treatment device may be provided before the amorphous strip coil 1, which is used to heat the amorphous strip coil 1 to a preset temperature before it enters the first conveyor belt 3. It should be noted that as the temperature increases, the maximum tension and tensile strength of the amorphous strip coil 1 will decrease, which can greatly reduce the difficulty of stamping, reduce stamping impact and wear, and increase the service life of the stamping die. It should be noted that the preset temperature here can be any temperature between 100°C and 350°C, and can be further preferably 200°C, which can better reduce the maximum tension and tensile strength of the amorphous strip coil and reduce the difficulty of stamping.

[0040] In the case of using a glue coating device and a heat treatment device, the process can be as follows Figure 5 As shown, Figure 5This is a flow chart of the process using a gluing device and a heat treatment device. The amorphous single-layer coil is cut into a width suitable for product stamping after slitting. The amorphous slit coil is heated at a suitable heating temperature between 100-350°C to reduce the maximum tensile force and tensile strength of the amorphous strip and reduce the difficulty of stamping. After heat treatment, the amorphous single-layer coil is coated with glue on the surface by a coating machine, and is placed in an oven at 200℃ for less than 1 minute to evaporate the solvent and then wound into shape. At this time, the self-adhesive adhesive does not show adhesion. The amorphous single-layer coil with self-adhesive adhesive is punched by a progressive punch press. The punching sheet is connected to the strip through several connection points and is not completely separated from the strip. The strip is conveyed to the outside of the mold by a conveyor, and the connection points of the punching sheet are broken by a blanking punch, and fall into a locking ring with a high-frequency heating tube. The loose sheets are stacked to a specified height by heating and pressurizing. The number of punching sheets in the locking ring is controlled by a counter in the mold. When the iron core is heated and solidified, the draw plate is automatically removed, and the iron core falls on the conveyor belt and output to the finished product placement area.

[0041] In the case of using a dispensing machine and a heat treatment device, the process can be as follows Figure 6 As shown, Figure 6 The figure is a flow chart of the case where a glue dispenser and a heat treatment device are used, and the flow includes the following: the amorphous single-layer coil is cut into a width suitable for product stamping after being cut, the amorphous slit coil is heated at a suitable heating temperature between 100-350°C, the amorphous single-layer coil without self-adhesive glue is punched by a progressive punch press, the punch is connected to the strip through several connection points, and is not completely separated from the strip. The strip is conveyed to the outside of the mold by conveyor, and the connection points of the punch are cut off by the blanking punch. After the glue dispenser is used to spray or spot-shoot quick adhesive on the bottom surface of the punch, the connection points of the punch are cut off by the blanking punch, and the punch falls into a locking ring with a high-frequency heating tube. The loose sheets are stacked to a specified height by heating and pressurizing. The number of punches in the locking ring is controlled by a counter in the mold. When the iron core is heated and solidified, the draw plate is automatically removed, and the iron core falls on the conveyor belt and is output to the finished product placement area.

[0042] In another specific embodiment of the amorphous motor core stamping equipment, a shearing device can be provided before the heat treatment device to shear the amorphous raw strip into amorphous strip coils. Furthermore, a multi-layer coiling device, a vacuum impregnation device and a drying device can be provided between the heat treatment device and the progressive punch press, and connected in sequence to make multiple single-layer coils into a multi-layer solidified whole coil. Figure 7 , Figure 7The figure is a schematic diagram of the stamping process of a single-layer strip after heat treatment and coiling. This is the scheme for multi-layer strip stamping, which can specifically include the following steps: the amorphous single-layer coil is cut into a width suitable for product stamping, the amorphous slit coil is heated at a suitable heating temperature between 100-350°C, and multiple amorphous single-layer coils after heat treatment are coiled, vacuum impregnated, and dried to obtain amorphous heat-treated multi-layer solidified coils. Through the stamping of the progressive punch press, the punching sheet is not completely separated from the strip, and it is connected to the strip through several connection points. It is not completely separated from the strip, and the strip is conveyed to the outside of the mold by conveying. The connection points of the punching sheet are cut by the blanking punch. After the quick bonding glue is sprayed or dotted on the bottom surface of the punching sheet using a glue dispenser, it falls into a locking ring with a high-frequency heating tube. The loose sheets are stacked to a specified height by heating and pressurizing. The number of punching sheets in the locking ring is controlled by a counter in the mold. When the iron core is heated and solidified, the draw plate is automatically removed, and the iron core falls on the conveyor belt and output to the finished product placement area.

[0043] To sum up, in the above embodiments, whether single-layer stamping or stamping after heat treatment, the punching force of the material itself is reduced and the wear of the stamping die is reduced, which helps to increase the service life of the die, reduce the use and maintenance costs of the die, and improve production efficiency. As the punching force of the material is reduced, the frequency of die maintenance is reduced, high-speed stamping is achieved, and the motor production efficiency is improved, while ensuring product consistency and quality stability.

[0044] The present invention provides an amorphous motor core stamping process. Figure 8 As shown, Figure 8 A schematic diagram of an embodiment of an amorphous motor core stamping process provided by the present invention, using the amorphous motor core stamping equipment as above, includes the following steps:

[0045] S1: using a first conveyor belt to convey the amorphous strip coil to a progressive punch press;

[0046] S2: using a progressive punch press to punch the amorphous strip coil into a punched intermediate that is not completely separated from the strip;

[0047] S3: Using the second conveyor belt, the stamping intermediate is conveyed to the bottom of the blanking punch;

[0048] S4: using a heating device disposed on the outer periphery of a locking ring disposed below the blanking punch to heat and solidify the colloid on the bottom surface of the punch to obtain an iron core;

[0049] S5: When the number of punched sheets reaches a preset number, the drawer plate at the bottom of the locking ring is controlled to be withdrawn, so that the finished iron core falls onto the third conveyor belt below the drawer plate;

[0050] S6: Use the third conveyor belt to convey the finished iron core to a preset area.

[0051] It should be noted that the amorphous strip coil here is the original strip, which refers to the strip produced directly by the amorphous material in the production process, without being treated by heating, magnetizing and other means, and its thickness can be 0.025mm to 0.03mm. The first conveyor belt conveys the amorphous strip coil to the progressive punch, and the progressive punch punches the amorphous strip coil into a stamping intermediate that is not completely separated from the strip. It should be noted that the progressive punch adopts a progressive die, which is composed of multiple stations, each station completes different processing, and each station is sequentially related. A series of different stamping processes are completed in one stroke of the punch. After one stroke is completed, the punch feeder moves the material forward according to a fixed step distance, so that multiple processes can be completed on a die, generally punching, blanking, bending, trimming and stretching, etc. The punch can be made of high-hardness material, such as tungsten steel, with a hardness of up to 90HRC. In this scheme, the stamping intermediate is initially stamped after high-speed punching. At this time, the punch is connected through several points on the punch, and the punch is still on the material belt. The other end of the progressive punch is connected to a second conveyor belt, which conveys the stamped intermediate to the bottom of the blanking punch, and the blanking punch completely punches the stamped intermediate and falls down. A locking ring for accommodating the punch is arranged below the blanking punch, that is, the punch can fall into the locking ring, a heating device is arranged on the outer periphery of the locking ring and a drawer plate is arranged on the bottom, which can block the bottom of the locking ring under normal circumstances, so that the punches can be stacked together, and the above-mentioned heating device is used to heat and solidify the colloid on the bottom surface of the punch to obtain an iron core, and when the punch reaches a preset number, the drawer plate is controlled to be withdrawn, that is, when the number of punches can meet the requirements of the iron core, the drawer plate can be withdrawn to form a finished iron core, so that the finished iron core falls to the third conveyor belt below the drawer plate, and the third conveyor belt conveys the finished iron core to a preset area, which can be a finished product storage area, thus completing the production of the finished iron core.

[0052] In summary, the above process directly adopts single-layer roll stamping and simultaneously implements the external die superposition technology. It is first stamped once without breaking, and then stamped again before breaking, which reduces the punching force of the material. Therefore, this solution can increase the life of the stamping die, reduce the processing cost, improve the processing efficiency, ensure product consistency and the accuracy of processing size, and improve product performance.

[0053] In a specific embodiment of the above-mentioned amorphous motor core stamping process, the amorphous motor core stamping equipment may further include a glue dispenser arranged next to the blanking punch, and the process may further include the following steps:

[0054] Before the blanking punch breaks the connection point of the stamped intermediate into a punch, glue is dispensed on the bottom surface of the stamped intermediate. In this case, before each stamped intermediate is punched and dropped, a quick bonding glue is dispensed on its bottom surface with a glue dispenser, and then the blanking punch is used to break its connection point, and the punched sheet after glue is dispensed falls into the locking ring, and then the glue can be heated to solidify to bond each punched sheet into a finished iron core.

[0055] In another specific embodiment of the above-mentioned amorphous motor core stamping process, the amorphous motor core stamping equipment may further include a glue coating device arranged before the amorphous strip is coiled, and the above-mentioned process may further include the following steps:

[0056] Before the amorphous strip coil is conveyed to the progressive punch press, a glue coating device is used to coat the back of the amorphous strip coil with glue. In this embodiment, self-adhesive glue can be coated, and a single layer of amorphous strip coil is pre-coated with self-adhesive glue. The self-adhesive glue is solid at room temperature and does not show stickiness. It only becomes sticky when a certain temperature is reached. At this time, the punched sheets that have been stamped are stacked and fixed by pressurization. Of course, this is also one of the specific implementation methods, and other gluing methods can also be selected according to actual needs, which is not limited here.

[0057] In another specific embodiment of the above-mentioned amorphous motor core stamping process, the amorphous motor core stamping equipment may further include a heat treatment device provided before the amorphous strip is coiled, and the above-mentioned process may further include the following steps:

[0058] Before the amorphous strip coil enters the first conveyor belt, it is heated to a preset temperature. It should be noted that as the temperature increases, the maximum tensile force and tensile strength of the amorphous strip coil will decrease, which can greatly reduce the difficulty of stamping, reduce stamping impact and wear, and increase the service life of the stamping die. It should be noted that the preset temperature here can be any temperature between 100°C and 350°C, and can be further preferably 200°C, which can better reduce the maximum tensile force and tensile strength of the amorphous strip coil and reduce the difficulty of stamping.

[0059] In addition, a shearing device can be provided before the heat treatment device to shear the large roll of amorphous raw tape into amorphous tape coils. It can also include a multi-layer coiling device, a vacuum impregnation device and a drying device which are connected in sequence between the heat treatment device and the progressive punching machine to make multiple single-layer coils into multi-layer solidified whole coils. This is the multi-layer tape stamping solution, which can specifically include the following steps: the amorphous single-layer coil is sheared to a width suitable for product stamping, the amorphous slit coil is heated at a suitable heating temperature between 100-350°C, and the multiple amorphous single-layer coils after heat treatment are rolled and vacuum impregnated. After dipping and drying, an amorphous heat-treated multi-layer solidified coil is obtained. The punch is pressed by a progressive punch press. The punch is not completely separated from the strip. It is connected to the strip through several connection points and is not completely separated from the strip. The strip is conveyed out of the mold by conveyor, and the connection points of the punch are cut off by the blanking punch. A glue dispenser is used to spray or spot-shoot quick adhesive on the bottom of the punch, and the punch falls into a locking ring with a high-frequency heating tube. The loose sheets are stacked to a specified height by heating and pressurizing. The number of punches in the locking ring is controlled by a counter in the mold. When the iron core is heated and solidified, the draw plate is automatically removed, and the iron core falls on the conveyor belt and is output to the finished product placement area.

[0060] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An amorphous motor core stamping device, characterized in that: It includes a first conveyor belt arranged between the amorphous strip coil and the progressive punch press, the first conveyor belt is used to convey the amorphous strip to the progressive punch press, the progressive punch press adopts a progressive die, which is composed of multiple stations, each station completes different processing, and each station is sequentially related. A series of different stamping processes are completed in one stroke of the punch press. After one stroke is completed, the punch feeder moves the amorphous strip forward according to a fixed step distance, and completes multiple processes on a pair of dies, including punching, blanking, bending, trimming and stretching. The blanking punch used by the progressive punch press is a tungsten steel punch. The progressive punch press is used to punch the amorphous strip into a stamping intermediate that is not completely separated from the material strip. The stamping intermediate is initially stamped after high-speed punching. At this time, the punch is connected to the material strip through several connection points and is not completely separated from the material strip. The punch is still on the material strip. , the other end of the progressive punch is connected to a second conveyor belt, the second conveyor belt is used to convey the stamped intermediate to the bottom of a blanking punch independent of the progressive punch, the blanking punch cuts the connection point of the punch, a locking ring for accommodating the punch is arranged below the blanking punch, the blanking punch can completely punch down the stamped intermediate and drop it, the punch falls into the locking ring, a heating device is arranged on the outer periphery of the locking ring and a draw plate is arranged on the bottom, the draw plate can block the bottom of the locking ring under normal circumstances, so that the punches are stacked together, the heating device is used to heat and solidify the colloid on the bottom surface of the punch to obtain an iron core, when the punches reach a preset number, the draw plate is controlled to be withdrawn, so that the finished iron core falls to the third conveyor belt below the draw plate, the third conveyor belt is used to convey the finished iron core to a preset area; A glue dispenser is arranged beside the blanking punch, which is used for dispensing glue on the bottom surface of the stamping intermediate body before the blanking punch breaks the connection points of the stamping intermediate body into punching sheets.

2. The amorphous motor core stamping equipment according to claim 1, characterized in that: It also includes a heat treatment device arranged before the amorphous strip coil, which is used to heat the amorphous strip coil to a preset temperature before the amorphous strip coil enters the first conveyor belt.

3. The amorphous motor core stamping equipment according to claim 2, characterized in that: A shearing device is also arranged before the heat treatment device, which is used to shear the large roll of amorphous raw tape into the amorphous tape coils.

4. The amorphous motor core stamping equipment according to claim 3, characterized in that: It also includes a multi-layer rolling device, a vacuum impregnation device and a drying device which are connected in sequence and are arranged between the heat treatment device and the progressive punch press, and are used to make multiple single-layer rolls into a multi-layer solidified whole roll.

5. A stamping process for an amorphous motor core, characterized in that: The amorphous motor core stamping device according to claim 1 comprises the following steps: The amorphous strip is conveyed to the progressive punching machine by the first conveyor belt. The progressive punching machine adopts a progressive die, which is composed of multiple stations. Each station completes different processing. The stations are sequentially related. A series of different stamping processes are completed in one stroke of the punching machine. After one stroke is completed, the punch feeder moves the amorphous strip forward according to a fixed step distance, and multiple processes are completed on a pair of dies, including punching, blanking, bending, trimming and stretching. The blanking punch used by the progressive punching machine is a tungsten steel punch. The amorphous strip is punched into a punched intermediate body which is not completely separated from the material strip by using the progressive punch press. The punched intermediate body is initially punched after being punched by a high-speed punch. At this time, the punch is connected to the material strip through several connection points and is not completely separated from the material strip. The punch is still on the material strip. The punching intermediate body is conveyed to the bottom of a blanking punch which is independent of the progressive punching machine by a second conveyor belt, and the connection point of the punching sheet is cut by the blanking punch. The blanking punch can completely punch down the punching intermediate body and make it fall down, and the punching sheet falls into the locking ring; The colloid on the bottom surface of the punch is heated and solidified by using a heating device arranged on the outer periphery of the locking ring arranged below the blanking punch to obtain an iron core; The draw plate can block the bottom of the locking ring under normal circumstances, so that the punching sheets are stacked together. When the punching sheets reach a preset number, the draw plate at the bottom of the locking ring is controlled to be withdrawn, so that the finished iron core falls onto the third conveyor belt below the draw plate. Using the third conveyor belt to convey the finished iron core to a preset area; The stamping process also includes: Before the blanking punch punches the connection points of the stamping intermediate body into punching sheets, glue is dispensed onto the bottom surface of the stamping intermediate body.

6. The amorphous motor core stamping process according to claim 5, characterized in that: The amorphous motor core stamping equipment also includes a heat treatment device arranged before the amorphous strip is coiled, and the process also includes: Before the amorphous ribbon coil enters the first conveyor belt, it is heated to a preset temperature.

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