Hall element forming device and forming method

Abstract

The invention relates to the field of Hall element forming, in particular to a Hall element forming device and method.The Hall element forming device comprises a forming workshop, a transmission belt, a lower die, a linear driving part, a linkage arm A, a linkage arm B, a linkage arm C, a linkage arm D, an upper die, a dryer, a coating nozzle and a cleaning nozzle; a transmission belt is mounted inside the forming workshop; equidistantly distributed lower molds are welded on the outer surface of the transmission belt; a linear driving part is mounted in the middle of the upper end of the forming workshop; according to the invention, the working procedures are integrated, surface coating can be immediately carried out after cutting and forming, residues in the mold are thoroughly removed, and the forming efficiency of the Hall element and the product quality of the Hall element are greatly improved; and meanwhile, one linear driving structure can synchronously and intermittently translate through four linkage arms according to a preset program, accurate displacement control can be provided, and it is ensured that all devices can accurately reach preset positions in the machining process.

Description

Technical Field

[0001] The invention relates to the field of Hall element molding, and in particular to a Hall element molding device and a molding method. Background Art

[0002] Hall elements are usually made of semiconductor materials, such as germanium (Ge), silicon (Si), indium antimonide (InSb), indium arsenide (InAs), etc. These materials have a significant Hall effect, which enables the Hall element to detect magnetic fields with high sensitivity.

[0003] However, the existing Hall element molding requires multiple processes. First, high-quality Hall element raw materials must be prepared. Then, after the Hall element raw materials are cut and formed, a coating is made on the surface to improve its insulation performance and stability. Then, photolithography technology is used to form the required electrode pattern and detection process on the surface of the Hall element. Currently, these processes need to be completed separately, which will lead to low production efficiency and increased costs. In addition, during the cutting and molding process, impurities and debris are likely to remain inside the mold. The residues may affect the subsequent production quality of the Hall element. Some manufacturers will take simple cleaning methods, but the cleaning effect is still not ideal.

[0004] Therefore, in order to solve the problem that the above-mentioned independent multiple processes will reduce the molding efficiency of the Hall element and increase the molding cost of the Hall element, a Hall element molding device and molding method can be designed. Summary of the invention

[0005] In order to overcome the problem that independent multiple processes will reduce the efficiency of Hall element molding and increase the cost of Hall element molding.

[0006] The technical solution of the present invention is: a Hall element molding device, including a molding workshop, a transmission belt, a lower mold, a linear drive, a linkage arm A, a linkage arm B, a linkage arm C, a linkage arm D, an upper mold, a dryer, a coating nozzle, and a cleaning nozzle; a transmission belt for transporting multiple Hall elements is installed on the inner side of the molding workshop; the outer surface of the transmission belt is welded with lower molds distributed at equal intervals; a linear drive is installed at the middle position of the upper end of the molding workshop to drive each molding processing component to translate according to a predetermined program; the front end of the linear drive is fixedly connected to the linkage arm A; the lower end of the linkage arm A is installed with an upper mold for cutting and molding the raw materials of the Hall element; the right end of the linkage arm A is welded with a linkage arm B; the left end of the linkage arm B is fixedly connected with a dryer for drying the lower mold; the rear end of the linear drive is welded with a linkage arm C; the lower end of the linkage arm C is installed with a coating nozzle for spraying coating material on the surface of the Hall element substrate; the right end of the linkage arm C is welded with a linkage arm D; the left end of the linkage arm D is installed with a cleaning nozzle for cleaning the inside of the lower mold by spraying cleaning liquid.

[0007] Preferably, the linear drive component includes a mounting frame; a drive motor is mounted on the left end of the mounting frame; a threaded rod is mounted on the right end of the drive motor output shaft; a threaded sleeve is connected to the outer side of the threaded rod for transmission; and linkage arms A and C are welded to the front and rear ends of the threaded sleeve respectively.

[0008] Preferably, linkage arm A, linkage arm B, linkage arm C, and linkage arm D all adopt an "L"-shaped structure; the dryer and cleaning nozzle are both located at the lower end of the transmission belt; the coating nozzle and the upper mold are located at the upper end of the transmission belt.

[0009] Preferably, a V-shaped cutting piece for cutting the remaining Hall element material into two pieces is fixedly connected to the inner side of the molding workshop; and material output channels for outputting the remaining Hall element material after cutting are arranged at both left and right ends of the molding workshop.

[0010] Preferably, the molding shapes of the lower mold and the upper mold are rectangular, square, circular, or customized.

[0011] Preferably, the upper end of the coating nozzle is connected to a coating raw material mixer; the lower end of the cleaning nozzle is provided with a drainage channel opened at the bottom of the molding workshop; the left end of the cleaning nozzle is connected to a liquid inlet pipe.

[0012] Preferably, a round roller for tensioning the Hall element material is installed at the front feed port of the molding workshop; there are two round rollers and they are symmetrically distributed up and down; an elastic part is arranged between the round roller and the front feed port of the molding workshop.

[0013] A Hall element forming device and forming method, comprising the Hall element forming device described above, and the steps are as follows:

[0014] Step 1: Start the transmission belt inside the molding workshop, make sure the transmission belt runs at the predetermined speed, put the raw materials of the Hall element into the feeding port at the front end of the molding workshop, and the round roller with elastic parts installed at the feeding port clamps the raw materials of the Hall element and pushes them into the molding workshop regularly;

[0015] Step 2: In the Hall element forming stage, the linear drive can drive the linkage arm A, linkage arm B, linkage arm C, and linkage arm D to perform intermittent translation synchronously according to the predetermined program. The upper mold at the lower end of the linkage arm A can be accurately moved to the top of each lower mold. When the upper mold is aligned with the lower mold, the hydraulic mechanism of the upper mold is started, and the upper mold moves down to cut the raw material of the Hall element into a predetermined shape and size. After the cutting is completed, the upper mold waits for the next cutting and repeats the above operation. When the cutting of a row of four Hall elements is completed, the upper mold returns to its original position;

[0016] Step 3: At the same time, the coating nozzle at the lower end of the linkage arm C moves accurately to the top of each lower mold, draws coating liquid from the coating raw material mixer, sprays coating material on the surface of the Hall element in the lower mold, and waits for the next coating work, repeating the above operation. When the coating spraying of a row of four Hall elements is completed, the coating nozzle returns to its original position;

[0017] Step 4: At the same time, the linear drive component drives the linkage arm D and the cleaning nozzle to move to the bottom of the lower mold, the water source is connected to the liquid inlet pipe, and the cleaning nozzle cleans the inside of the lower mold. After a row of four lower molds are cleaned, the cleaning nozzle returns to its original position;

[0018] Step 5: At the same time, the linear drive component drives the linkage arm B and the dryer to move to the bottom of each lower mold. The dryer dries the residual water stains in the lower mold. When the drying of a row of four lower molds is completed, the dryer returns to its original position.

[0019] Step 6: When the transmission belt starts, it will go through the Hall element cutting, forming, and coating processes, and then drive the Hall element to move to the rear end exit of the molding workshop and pour it out. With the help of another transmission device, the formed Hall element is transported to the electrode manufacturing and detection process. Then the used upper mold is turned downward with the transmission belt. After the lower mold cleaning and lower mold drying processes, the clean lower mold is turned upward again.

[0020] Beneficial effects of the present invention:

[0021] The present invention integrates the cutting, forming and coating processes of the Hall element, and can immediately perform surface coating after cutting and forming to reduce the time for material transportation and storage. After the Hall element is processed and output, the used lower mold is turned downward along with the transmission belt, and the mold is cleaned through the lower mold cleaning and lower mold drying processes to completely remove the residual surface in the mold, thereby greatly improving the molding efficiency of the Hall element and the product quality of the Hall element. At the same time, a linear drive structure can drive the upper mold, dryer, coating nozzle, and cleaning nozzle to perform intermittent translation synchronously according to a predetermined program through four linkage arms, and can provide precise displacement control to ensure that each device can accurately reach the predetermined position during the processing process, thereby ensuring the processing accuracy of the Hall element and maximizing the utilization rate of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 Shown is a three-dimensional structural schematic diagram of the molding device and molding method of the present invention;

[0023] Figure 2 Another three-dimensional structural schematic diagram of the molding device and molding method of the present invention is shown;

[0024] Figure 3 Shown is a front view schematic diagram of the internal structure of the molding device and molding method of the present invention;

[0025] Figure 4 Shown is a rear view schematic diagram of the internal structure of the molding device and molding method of the present invention;

[0026] Figure 5 Shown is a schematic diagram of the three-dimensional structure of the linear drive member of the molding device and molding method of the present invention;

[0027] Figure 6 Shown is a schematic diagram of the three-dimensional structure of the linkage arm and various components of the molding device and molding method of the present invention.

[0028] Explanation of the accompanying drawings: 1. Molding workshop; 2. Transmission belt; 3. Lower mold; 4. Linear drive component; 5. Linkage arm A; 6. Linkage arm B; 7. Linkage arm C; 8. Linkage arm D; 9. Upper mold; 10. Dryer; 11. Coating nozzle; 12. Cleaning nozzle; 13. Mounting frame; 14. Driving motor; 15. Threaded rod; 16. Threaded sleeve; 17. Material output channel; 18. Coating raw material mixer; 19. Drainage channel; 20. Liquid inlet pipe; 21. Round roller; 22. Elastic member; 23. V-shaped cutting blade. DETAILED DESCRIPTION

[0029] The present invention will be further described below in conjunction with the embodiments.

[0030] See also Figure 1-6The present invention provides an embodiment: a Hall element molding device, including a molding workshop 1, a transmission belt 2, a lower mold 3, a linear drive member 4, a linkage arm A5, a linkage arm B6, a linkage arm C7, a linkage arm D8, an upper mold 9, a drying machine 10, a coating nozzle 11, and a cleaning nozzle 12; a transmission belt 2 for transporting multiple Hall elements is installed on the inner side of the molding workshop 1; lower molds 3 distributed equidistantly are welded on the outer surface of the transmission belt 2; a linear drive member 4 for driving each molding processing component to translate according to a predetermined program is installed at the middle position of the upper end of the molding workshop 1; a linkage arm A5 is fixedly connected to the front end of the linear drive member 4; an upper mold 9 for cutting and molding the raw materials of the Hall element is installed at the lower end of the linkage arm A5; a linkage arm A5 is welded on the right end Boom B6; the left end of the linkage arm B6 is fixedly connected to a dryer 10 for drying the lower mold 3; a linkage arm C7 is welded to the rear end of the linear drive member 4; a coating nozzle 11 for spraying coating material on the surface of the Hall element substrate is installed at the lower end of the linkage arm C7; a linkage arm D8 is welded to the right end of the linkage arm C7; a cleaning nozzle 12 for cleaning the inside of the lower mold 3 by spraying cleaning liquid is installed at the left end of the linkage arm D8, and a round roller 21 for tensioning the Hall element material is installed at the front feed port of the molding workshop 1; there are two round rollers 21 and they are symmetrically distributed up and down; an elastic member 22 is arranged between the round roller 21 and the front feed port of the molding workshop 1, and the molding shapes of the lower mold 3 and the upper mold 9 adopt one of rectangular, square, circular, and customized shapes.

[0031] See also Figure 3 In this embodiment, a V-shaped cutting piece 23 for cutting the remaining Hall element material into two pieces is fixedly connected to the inner side of the molding workshop 1; material output channels 17 for outputting the remaining Hall element material after cutting are arranged at both ends of the molding workshop 1.

[0032] See also Figure 5 In this embodiment, the linear drive member 4 includes a mounting frame 13; a driving motor 14 is installed at the left end of the mounting frame 13; a threaded rod 15 is installed at the right end of the output shaft of the driving motor 14; a threaded sleeve 16 is transmission-connected to the outer side of the threaded rod 15; and a linkage arm A5 and a linkage arm C7 are welded to the front and rear ends of the threaded sleeve 16 respectively.

[0033] See also Figure 6 In this embodiment, linkage arm A5, linkage arm B6, linkage arm C7, and linkage arm D8 all adopt an "L"-shaped structure; the dryer 10 and the cleaning nozzle 12 are both located at the lower end of the transmission belt 2; the coating nozzle 11 and the upper mold 9 are located at the upper end of the transmission belt 2, and the upper end of the coating nozzle 11 is connected to a coating raw material mixer 18; the lower end of the cleaning nozzle 12 is provided with a drainage channel 19 opened at the bottom of the molding workshop 1; the left end of the cleaning nozzle 12 is connected to a liquid inlet pipe 20.

[0034] The forming method of the Hall element forming device comprises the following steps:

[0035] Step 1: Start the transmission belt 2 inside the molding workshop 1, ensure that the transmission belt 2 runs at a predetermined speed, put the raw materials of the Hall element into the feed port at the front end of the molding workshop 1, and the round roller 21 with an elastic member 22 installed at the feed port clamps the raw materials of the Hall element and pushes them into the molding workshop 1 regularly;

[0036] Step 2: In the Hall element forming stage, the linear drive member 4 can drive the linkage arm A5, linkage arm B6, linkage arm C7, and linkage arm D8 to synchronously perform intermittent translation according to a predetermined program, and the upper mold 9 at the lower end of the linkage arm A5 can accurately move to the top of each lower mold 3. When the upper mold 9 is aligned with the lower mold 3, the hydraulic mechanism of the upper mold 9 is started, and the upper mold 9 moves downward to cut the raw material of the Hall element into a predetermined shape and size. After the cutting is completed, the upper mold 9 waits for the next cutting and repeats the above operation. When the cutting of a row of four Hall elements is completed, the upper mold 9 returns to its original position;

[0037] Step 3: At the same time, the coating nozzle 11 at the lower end of the linkage arm C7 accurately moves to the top of each lower mold 3, and the coating nozzle 11 extracts the coating liquid from the coating raw material mixer 18, and sprays the coating material on the surface of the Hall element in the lower mold 3. The coating nozzle 11 waits for the next coating work and repeats the above operation. When the coating spraying of a row of four Hall elements is completed, the coating nozzle 11 returns to its original position;

[0038] Step 4: At the same time, the linear drive member 4 drives the linkage arm D8 and the cleaning nozzle 12 to move to the bottom of the lower mold 3, the water source is connected to the liquid inlet pipe 20, and the cleaning nozzle 12 cleans the inside of the lower mold 3. After a row of four lower molds 3 are cleaned, the cleaning nozzle 12 returns to its original position;

[0039] Step 5: At the same time, the linear drive member 4 drives the linkage arm B6 and the dryer 10 to move to the bottom of each lower mold 3. The dryer 10 dries the residual water stains in the lower mold 3. When a row of four lower molds 3 are dried, the dryer 10 returns to its original position.

[0040] Step 6: When the transmission belt 2 is started, it will go through the Hall element cutting, forming, and coating processes, and then drive the Hall element to move to the rear end exit of the molding workshop 1 for pouring out. In conjunction with another transmission device, the formed Hall element is transported to the electrode manufacturing and detection process. Then the used upper mold 9 is turned downward with the transmission belt 2, and after the lower mold 3 cleaning and lower mold 3 drying processes, the clean lower mold 3 is turned upward again.

Claims

1. A Hall element forming device, characterized in that: The invention comprises a molding workshop (1), a transmission belt (2), a lower mold (3), a linear drive member (4), a linkage arm A (5), a linkage arm B (6), a linkage arm C (7), a linkage arm D (8), an upper mold (9), a drying machine (10), a coating nozzle (11), and a cleaning nozzle (12); a transmission belt (2) for transporting a plurality of Hall elements is installed on the inner side of the molding workshop (1); lower molds (3) are welded to the outer surface of the transmission belt (2) at equal intervals; a linear drive member (4) for driving each molding processing component to translate according to a predetermined program is installed at the middle position of the upper end of the molding workshop (1); a linkage member (4) is fixedly connected to the front end of the linear drive member (4); A movable arm A (5); an upper mold (9) for cutting and forming the raw material of the Hall element is installed at the lower end of the linkage arm A (5); a linkage arm B (6) is welded to the right end of the linkage arm A (5); a drying machine (10) for drying the lower mold (3) is fixedly connected to the left end of the linkage arm B (6); a linkage arm C (7) is welded to the rear end of the linear drive member (4); a coating nozzle (11) for spraying coating material on the surface of the Hall element substrate is installed at the lower end of the linkage arm C (7); a linkage arm D (8) is welded to the right end of the linkage arm C (7); a cleaning nozzle (12) for cleaning the inside of the lower mold (3) by spraying cleaning liquid is installed at the left end of the linkage arm D (8).

2. The Hall element forming device according to claim 1, characterized in that: The linear drive member (4) comprises a mounting frame (13); a driving motor (14) is mounted on the left end of the mounting frame (13); a threaded rod (15) is mounted on the right end of the output shaft of the driving motor (14); a threaded sleeve (16) is transmission-connected to the outer side of the threaded rod (15); and a linkage arm A (5) and a linkage arm C (7) are respectively welded to the front and rear ends of the threaded sleeve (16).

3. The Hall element forming device according to claim 1, characterized in that: The linkage arm A (5), linkage arm B (6), linkage arm C (7), and linkage arm D (8) all adopt an "L"-shaped structure; the drying machine (10) and the cleaning nozzle (12) are both located at the lower end of the transmission belt (2); and the coating nozzle (11) and the upper mold (9) are located at the upper end of the transmission belt (2).

4. The Hall element forming device according to claim 1, characterized in that: A V-shaped cutting blade (23) for cutting the remaining Hall element material into two pieces is fixedly connected to the inner side of the molding workshop (1); and material output channels (17) for outputting the remaining Hall element material after cutting are arranged at both left and right ends of the molding workshop (1).

5. The Hall element forming device according to claim 1, characterized in that: The molding shapes of the lower mold (3) and the upper mold (9) are rectangular, square, circular, or customized.

6. The Hall element forming device according to claim 1, characterized in that: The upper end of the coating nozzle (11) is connected to a coating raw material mixer (18); the lower end of the cleaning nozzle (12) is provided with a drainage channel (19) opened at the bottom of the molding workshop (1); and the left end of the cleaning nozzle (12) is connected to a liquid inlet pipe (20).

7. The Hall element forming device according to claim 1, characterized in that: A round roller (21) for tensioning the Hall element material is installed at the front feed port of the molding workshop (1); there are two round rollers (21) which are symmetrically distributed up and down; and an elastic member (22) is arranged between the round roller (21) and the front feed port of the molding workshop (1).

8. A Hall element forming device and a forming method, characterized in that The method comprises the Hall element forming device according to claim 1, wherein the steps are as follows: Step 1: Start the transmission belt (2) inside the molding workshop (1), ensure that the transmission belt (2) runs at a predetermined speed, put the raw materials of the Hall element into the feeding port at the front end of the molding workshop (1), and the round roller (21) equipped with an elastic member (22) at the feeding port clamps the raw materials of the Hall element and pushes them into the molding workshop (1) regularly; Step 2: During the Hall element forming stage, the linear drive member (4) can drive the linkage arm A (5), linkage arm B (6), linkage arm C (7), and linkage arm D (8) to synchronously perform intermittent translation according to a predetermined program, and the upper mold (9) at the lower end of the linkage arm A (5) can accurately move to the top of each lower mold (3). When the upper mold (9) is aligned with the lower mold (3), the hydraulic mechanism of the upper mold (9) is started, and the upper mold (9) moves downward to cut the raw material of the Hall element into a predetermined shape and size. After the cutting is completed, the upper mold (9) waits for the next cutting and repeats the above operation. When the cutting of a row of four Hall elements is completed, the upper mold (9) returns to its original position; Step 3: At the same time, the coating nozzle (11) at the lower end of the linkage arm C (7) accurately moves to the top of each lower mold (3), the coating nozzle (11) draws coating liquid from the coating raw material mixer (18), and sprays the coating material on the surface of the Hall element in the lower mold (3). The coating nozzle (11) waits for the next coating work and repeats the above operation. When the coating spraying of a row of four Hall elements is completed, the coating nozzle (11) returns to its original position; Step 4: At the same time, the linear drive member (4) drives the linkage arm D (8) and the cleaning nozzle (12) to move to the bottom of the lower mold (3), the water source is connected to the liquid inlet pipe (20), and the cleaning nozzle (12) cleans the inside of the lower mold (3). After a row of four lower molds (3) are cleaned, the cleaning nozzle (12) returns to its original position; Step 5: At the same time, the linear drive member (4) drives the linkage arm B (6) and the dryer (10) to move to the bottom of each lower mold (3). The dryer (10) dries the residual water stains in the lower mold (3). When the drying of a row of four lower molds (3) is completed, the dryer (10) returns to its original position. Step 6: When the transmission belt (2) is started, it will drive the Hall element to move to the rear end exit of the molding workshop (1) after the Hall element cutting, molding and coating processes, and cooperate with another transmission device to transport the molded Hall element to the electrode manufacturing and detection process. Then, the used upper mold (9) is turned downward along with the transmission belt (2), and after the lower mold (3) cleaning and lower mold (3) drying processes, the clean lower mold (3) is turned upward again.

Images