Die-casting die and die-casting method for machining automobile capacitor cover plate

Abstract

The invention relates to the technical field of capacitor cover plate die-casting, in particular to a die-casting die for automobile capacitor cover plate machining and a die-casting method.The die-casting die comprises an upper die base, a lower die base, an upper die core and a lower die core, the periphery of the upper die core is fixedly connected with the bottom of the upper die base, and the periphery of the lower die core is fixedly connected with the top of the lower die base; the upper die base is installed at the top of the lower die base in a vertically sliding mode, the bottom of the upper die core and the top of the lower die core are attached to each other, a plurality of through exhaust holes are formed in the bottom wall of the lower die core, and the hole cleaning assembly comprises a shell, a stand column, a supporting column, a scraper and a pop-up mechanism. In order to crush and clean residual metal in the exhaust hole, firstly, a metal sheet is scraped into the shell through rotary descending of the scraper capable of being popped up, collection is facilitated, then the metal sheet is torn in a multi-direction clamping and overturning mode, the metal sheet is crushed and prevented from being blocked, and the cleaning effect of the exhaust hole and the die casting quality are further improved.

Description

Technical Field

[0001] The present invention relates to the technical field of die-casting of capacitor covers, and particularly to a die-casting mold and a die-casting method for processing automotive capacitor covers. Background Art

[0002] An automotive capacitor is an electronic component composed of two electrode plates separated by an insulator in the middle. Its core principle is to store and release energy through the storage and release of charges on the electrode surface. It is mainly used to stabilize the supply voltage of the automotive electronic system, protect electronic devices from voltage fluctuations, and for coupling and transmitting signals, while blocking the DC component to enable accurate signal transmission between different circuits.

[0003] Most of the covers of automotive capacitors are made of metal materials such as aluminum and copper through die-casting processes, which play a role in sealing, protecting, and fixing the automotive capacitors. The specific operation of die-casting is as follows: first, preheat the mold and then melt the alloy. Subsequently, inject the liquid alloy into the mold at high speed. After the cover cools and forms, demold and clean it. Finally, conduct quality inspections such as appearance, dimensional accuracy, and mechanical properties, and perform surface treatments such as electroplating as needed.

[0004] Most of the existing die-casting molds are provided with exhaust holes in the mold to discharge the internal air during the process of injecting the liquid alloy into the mold at high speed. This operation can avoid the formation of porosity and other loose defects, reduce the flow resistance of the liquid metal, make the filling process more stable, and contribute to improving the quality of the casting and the die-casting process. For example, a die-casting mold for aluminum alloy with positioning and ejection disclosed in Chinese Patent Publication No. CN117862463B includes a mold shell, a positioning rod, a lifting plate, an upper mold, a lower mold, an electric push rod, an ejection block, a following plate, a limit post, and an air outlet pipe; this solution can avoid the blockage caused by the retention of the aluminum alloy solution in the inner cavity of the air outlet pipe, but it is not convenient to clean the scraped metal debris and the broken metal sheets, resulting in a low cleaning effect.

[0005] Since the metal debris in the air outlet hole directly enters the inner cavity of the mold after being scraped out of the air outlet pipe, and the particle diameter of the metal debris is relatively small, it is difficult to clean, and it is easy to mix into the subsequent die-cast products, resulting in a decrease in die-casting quality. Moreover, during the cooling process of the liquid metal, due to its good fluidity and relatively small surface tension, it is easy to adsorb on the inner wall of the exhaust hole and form a ring-shaped metal sheet after cooling. When cleaning the exhaust hole, the metal sheet is easy to slide up and down in the exhaust hole with the scraper, seriously affecting the cleaning effect and reducing the die-casting quality. Summary of the Invention

[0006] The purpose of the present invention is to provide a die-casting mold and a die-casting method for processing automotive capacitor covers, which can break and efficiently clean the remaining metal in the exhaust hole and improve the die-casting quality.

[0007] To achieve this purpose, the present invention adopts the following technical solutions:

[0008] Provide a die-casting mold for processing an automotive capacitor cover plate, including an upper die base, a lower die base, an upper die core, and a lower die core. The periphery of the upper die core is fixedly connected to the bottom of the upper die base, and the periphery of the lower die core is fixedly connected to the top of the lower die base. The upper die base is vertically slidably installed on the top of the lower die base. The bottom of the upper die core is in mutual contact with the top of the lower die core. A plurality of through exhaust holes are opened on the bottom wall of the lower die core. It further includes a hole cleaning component, a tearing component, and a temperature reduction component. The hole cleaning component includes a housing, a column, a support column, a scraper, and a pop-up mechanism. The top of the housing is communicated with the bottom of the exhaust hole. The bottom of the column is fixedly connected to the inner wall of the housing. One side of the bottom of the support column is fixedly connected with a slider. A threaded groove is opened on the inner wall of the column, and the slider is slidably connected with the threaded groove. The scraper is slidably installed on the top of the support column through the pop-up mechanism. One side of the scraper is in contact with the inner wall of the exhaust hole. The top wall of the scraper is of an inclined surface structure. The tearing component is installed in the housing and is used for crushing the agglomerated metal. The temperature reduction component is installed on the lower die base and is used for cooling the casting and discharging metal chips.

[0009] Preferably, a plurality of hole cleaning components and tearing components are provided and their positions are adapted to the exhaust holes. The tearing component includes a plurality of clamping and flipping mechanisms and a driving mechanism. The plurality of clamping and flipping mechanisms are circumferentially distributed around the column. The clamping and flipping mechanism includes a support plate and a pair of clamping plates. The support plate is vertically rotatably installed on the housing through the driving mechanism. The bottom of one of the clamping plates is fixedly connected to the end of the support plate close to the column, and the other clamping plate is slidably installed on the support plate.

[0010] Preferably, the hole cleaning component further includes a long rod, a sleeve, a first motor, a convex block, and a limiting plate. The bottom of the long rod passes through the top wall of the sleeve and is slidably connected to it. The long rod is coaxially connected to the sleeve. The top of the first motor is fixedly connected to the bottom of the column. The output shaft of the first motor passes through the bottom wall of the column and is coaxially connected to the bottom of the sleeve. The top of the long rod passes through the bottom wall of the support column and is rotatably connected to it. The convex block is fixedly connected to the periphery of the long rod. The limiting plate is fixedly connected to the inner wall of the support column. The support plate abuts against the convex block.

[0011] Preferably, a pair of scrapers and pop-up mechanisms are provided and are symmetrically distributed on both sides of the support column. The pop-up mechanism includes a spur gear, a rack, and a sliding sleeve. The spur gear is coaxially connected to the top of the long rod. The rack meshes with the spur gear. One end of the rack is fixedly connected to the sliding sleeve. The sliding sleeve passes through the side wall of the support column and is slidably connected to it. The scraper is vertically slidably installed on the sliding sleeve.

[0012] Preferably, the ejection mechanism further includes a pressing plate and a pair of springs. The pressing plate is fixedly connected to the inner wall of the support column. One end of the scraper passes through the side wall of the sliding sleeve and is slidably connected thereto. The bottom of the pressing plate is of an inclined surface structure and abuts against the top of the scraper. One end of the spring is fixedly connected to the bottom of the scraper, and the other end of the spring is fixedly connected to the bottom wall of the sliding sleeve.

[0013] Preferably, the clamping and flipping mechanism further includes a circular tube, a sliding rod, a tension spring, a roller and a fixing plate. The top of the fixing plate is fixedly connected to the housing. The other end of the support plate is rotatably connected to the bottom of the fixing plate. The bottom of the fixing plate is of an arc structure. The bottom of the circular tube is fixedly connected to the support plate. The sliding rod passes through the circular tube and is slidably connected thereto. One end of the sliding rod is rotatably connected to the roller. The roller abuts against the outer periphery of the bottom of the fixing plate. The other end of the sliding rod is fixedly connected to the clamping plate. The tension spring is sleeved on the outer periphery of the sliding rod. One end of the tension spring is fixedly connected to the circular tube, and the other end of the tension spring is fixedly connected to the clamping plate.

[0014] Preferably, the driving mechanism includes a plurality of transmission rods and a plurality of first bevel gears. The transmission rods are rotatably connected to the inner wall of the housing. The transmission rods pass through the bottom of the fixing plate and are rotatably connected thereto. The transmission rods pass through the support plate and are fixedly connected thereto. A plurality of first bevel gears are coaxially connected to both ends of the plurality of transmission rods respectively. Adjacent two first bevel gears are meshed with each other. A pair of second motors are fixedly connected to one side of the lower die base. The output shafts of the second motors pass through the side wall of the lower die base and are coaxially connected to a rotating shaft. The rotating shaft passes through the housing and is rotatably connected thereto. A plurality of second bevel gears are coaxially connected to the outer periphery of the rotating shaft. The plurality of second bevel gears are respectively meshed with the first bevel gears of the plurality of driving mechanisms.

[0015] Preferably, rubber pads are fixedly connected to the clamping plates on both sides of the column, cutting pliers are fixedly connected to the clamping plates at both ends of the column, and a bracket is fixedly connected to the top of the column. The top of the bracket is flush with the top of the support plate.

[0016] Preferably, the cooling component includes a blower, a spray head, a partition plate and an inclined plate. The blower is fixedly connected to one end of the lower die base. A plurality of air inlet holes and chip discharge grooves are respectively formed in the top and bottom of the other end of the lower die base. The partition plate and the inclined plate are both fixedly connected to the inner wall of the lower die base. The partition plate is located between the air inlet holes and the chip discharge grooves and is fixedly connected to the outer periphery of the housing. The inclined plate is located at the bottom of the lower die base and one end thereof is flush with the bottom wall of the chip discharge groove. The spray heads are arranged obliquely on the top of the inclined plate. The air inlet of the blower is communicated with the top of the lower die base, and the air outlet of the blower is communicated with the spray heads.

[0017] The present invention also provides a die-casting method for a die-casting mold used in the processing of an automotive capacitor cover plate, including the following steps. Step 1: Drive the upper die core to descend by the upper die base and fit it with the lower die core. Inject liquid metal into the upper die core, and cool the casting through the cooling component arranged on the lower die base to enable it to be quickly cooled and formed. Step 2: After the casting is demolded, through the hole cleaning component arranged on the lower die base, under the drive of the first motor, the scraper pops out and rotates downward closely attached to the exhaust hole, and can scrape the metal debris remaining in the exhaust hole into the housing. Step 3: After the cleaning is completed, the scraper retracts to both sides of the support column under the action of the ejection mechanism, which can prevent the casting from being damaged during the die-casting process, and reverse-drive the first motor, and the support column jacks up the exhaust hole upward, which can assist in demolding. Step 4: The tearing component arranged in the housing, under the drive of the second motor, clamps the bottom of the metal sheet and turns it outwards, and can tear up the metal sheet that has fallen into the exhaust hole to prevent blocking the housing and improve the cleaning effect. Step 5: Repeat the above steps for continuous die-casting processing, and during the die-casting process, through the cooling component, blow out high-speed air flow to discharge the metal debris cleaned out of the exhaust hole from the lower die base.

[0018] Advantages of the present invention:

[0019] 1. During the die-casting process of the present invention, the scraper retracts to both sides of the support column under the action of the ejection mechanism, which can prevent the casting from being damaged during the die-casting process. After the casting is demolded, through the hole cleaning component arranged on the lower die base, the scraper can pop out and rotate downward closely attached to the inner wall of the exhaust hole, scrape the metal debris remaining in the exhaust hole into the housing for collection, and improve the cleaning effect. And reverse-drive the first motor, and the support column jacks up the exhaust hole upward, which can also assist in demolding after the casting is formed.

[0020] 2. When the liquid metal remaining in the exhaust hole cools to form a metal sheet, the present invention can scrape it off by the scraper and make its bottom fall between the two clamping plates. The tearing component arranged in the housing can fix the bottom of the metal sheet and turn it outwards to tear up the metal sheet to prevent blocking the housing and further improve the cleaning effect. And during the die-casting process, through the cooling component, while blowing out high-speed air flow for cooling, it can discharge the metal debris cleaned out of the exhaust hole from the lower die base. Description of the drawings

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments of the present invention will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without creative efforts.

[0022] Figure 1 is the three-dimensional structure schematic of the present invention Figure 1 .

[0023] Figure 2 is the schematic diagram of the three-dimensional structure of the present invention Figure 2 。

[0024] Figure 3 is the schematic diagram of the three-dimensional structure of the present invention Figure 3 。

[0025] Figure 4 is the exploded view of the lower die base and the lower die core structures of the present invention.

[0026] Figure 5 is the sectional view of the lower die base structure of the present invention.

[0027] Figure 6 is the sectional view of the lower die core structure of the present invention.

[0028] Figure 7 is Figure 6 the enlarged view of the structure at position A in

[0029] Figure 8 is the sectional view of the column structure of the present invention.

[0030] Figure 9 is the sectional view of the support column structure of the present invention.

[0031] Figure 10 is the sectional view of the sliding sleeve structure of the present invention.

[0032] Figure 11 is the schematic diagram of the tearing assembly structure of the present invention.

[0033] Figure 12 is the exploded view of the clamping and flipping mechanism structure of the present invention.

[0034] In the figure:

[0035] 1. Upper die base; 10. Lower die base; 100. Air inlet hole; 101. Chip removal groove; 11. Upper die core; 12. Lower die core; 120. Exhaust hole;

[0036] 2. Hole cleaning assembly; 20. Housing; 21. Column; 210. Threaded groove; 22. Support column; 220. Slide block; 23. Scraper; 24. Sliding sleeve; 25. Long rod; 26. Sleeve; 27. First motor; 28. Convex block; 29. Limiting plate;

[0037] 3. Tearing component; 30. Clamping and flipping mechanism; 300. Support plate; 301. Clamping plate; 3010. Rubber pad; 3011. Plier knife; 302. Round tube; 303. Slide bar; 304. Tension spring; 305. Roller; 306. Fixed plate; 31. Driving mechanism; 310. Transmission rod; 311. First bevel gear; 312. Second motor; 313. Rotating shaft; 314. Second bevel gear; 315. Bracket;

[0038] 4. Cooling component; 40. Fan; 41. Sprayer; 42. Partition board; 43. Inclined plate;

[0039] 5. Ejecting mechanism; 50. Straight gear; 51. Rack; 52. Extrusion plate; 53. Spring. Specific embodiments

[0040] The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific embodiments.

[0041] Among them, the accompanying drawings are only for illustrative purposes, showing only schematic diagrams, not physical diagrams, and should not be construed as a limitation of this patent; in order to better illustrate the embodiments of the present invention, some components in the accompanying drawings will be omitted, enlarged or reduced, which do not represent the dimensions of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the accompanying drawings may be omitted.

[0042] In the accompanying drawings of the embodiments of the present invention, the same or similar reference numerals correspond to the same or similar components; in the description of the present invention, it should be understood that if terms such as "upper", "lower", "left", "right", "inner", "outer", etc. are used to indicate the orientation or positional relationship, it is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so the terms describing the positional relationship in the accompanying drawings are only for illustrative purposes and should not be construed as a limitation of this patent. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0043] In the description of the present invention, unless otherwise clearly defined and limited, if terms such as "connection" are used to indicate the connection relationship between components, this term should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral body; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] As Figures 1 to 12 shown:

[0045] A die-casting mold for processing an automotive capacitor cover plate, comprising an upper die base 1, a lower die base 10, an upper die core 11 and a lower die core 12. The periphery of the upper die core 11 is fixedly connected to the bottom of the upper die base 1, and the periphery of the lower die core 12 is fixedly connected to the top of the lower die base 1. The upper die base 1 is vertically slidably mounted on the top of the lower die base 1. The bottom of the upper die core 11 fits with the top of the lower die core 12. A plurality of through exhaust holes 120 are formed in the bottom wall of the lower die core 12. By driving the upper die core 11 to descend by the upper die base 1 and fit with the lower die core 12, the mold closing is completed. Liquid metal is injected into the upper die core 11 and kept under pressure, and at the same time, air is extruded from the exhaust holes 120, and the casting is cooled by a cooling component 4 arranged on the lower die base 1 to enable it to be quickly cooled and formed, thus completing the die-casting process. It further includes a hole cleaning component 2, a tearing component 3 and a cooling component 4. The hole cleaning component 2 includes a housing 20, a column 21, a support column 22, a scraper 23 and a pop-up mechanism 5. The top of the housing 20 is communicated with the bottom of the exhaust hole 120. The bottom of the column 21 is fixedly connected to the inner wall of the housing 20. One side of the bottom of the support column 22 is fixedly connected with a slider 220. A threaded groove 210 is formed in the inner wall of the column 21, and the slider 220 is slidably connected with the threaded groove 210. The scraper 23 is slidably mounted on the top of the support column 22 through the pop-up mechanism 5. One side of the scraper 23 fits with the inner wall of the exhaust hole 120. The top wall of the scraper 23 is of an inclined surface structure. The tearing component 3 is installed in the housing 20 and is used for crushing the metal of the flake. The cooling component 4 is installed on the lower die base 1 and is used for cooling the casting and discharging metal chips.

[0046] During the die-casting process, the scraper 23 retracts to both sides of the support column 22 under the action of the pop-up mechanism 5, which can prevent the casting from being damaged during the die-casting process. After the casting is demolded, through the hole cleaning component 2 arranged on the lower die base 1, the scraper 23 is ejected and rotates and descends closely against the exhaust hole 120 under the drive of the first motor 27, which can scrape the residual metal debris in the exhaust hole 120 into the housing 20 for collection, improving the cleaning effect. And by driving the first motor 27 in the reverse direction, the support column 22 jacks up the exhaust hole 120, which can assist in demolding after the casting is formed.

[0047] When the residual liquid metal in the exhaust hole 120 cools to form a metal sheet, the scraper 23 can scrape it off and make its bottom fall between two clamping plates 301. Through the tearing component 3 arranged in the housing 20, the clamping plates 301 fix the bottom of the metal sheet and turn it outwards under the drive of the second motor 312, which can tear up the metal sheet falling in the exhaust hole 120 to prevent the housing 20 from being blocked and improve the cleaning effect. Repeat the above steps for continuous die-casting processing, and during the die-casting process, through the cooling component 4, while blowing high-speed air flow for cooling, the metal debris cleaned out from the exhaust hole 120 can be discharged from the lower die base 1.

[0048] As Figures 1 to 12As shown in the figure:

[0049] There are multiple cleaning hole components 2 and tearing components 3, and their positions are adapted to the exhaust holes 120. The tearing component 3 includes multiple clamping and flipping mechanisms 30 and a driving mechanism 31. The multiple clamping and flipping mechanisms 30 are circumferentially distributed around the outer periphery of the column 21. The clamping and flipping mechanism 30 includes a support plate 300 and a pair of clamping plates 301. The support plate 300 is vertically rotatably installed on the housing 20 through the driving mechanism 31. The bottom of one of the clamping plates 301 is fixedly connected to one end of the support plate 300 close to the column 21, and the other clamping plate 301 is slidably installed on the support plate 300.

[0050] When the scraper scrapes off the annular metal sheet, its bottom disengages from the exhaust hole 120 and falls between the two clamping plates 301, and the multiple clamping and flipping mechanisms 30 support the metal sheet from multiple angles. At this time, the multiple clamping and flipping mechanisms 30 are synchronously flipped. One end of the support plate 300 close to the column 21 rotates downward, and at the same time, one of the clamping plates 301 slides along the support plate 300 and approaches the other clamping plate 301, so as to clamp the metal sheet during the rotation. As the support plate 300 continues to rotate, the multiple clamping and flipping mechanisms 30 respectively tear the bottom of the metal sheet in different directions, so as to tear it and achieve the crushing effect to prevent blocking the housing 20.

[0051] As Figures 1 to 10 shown in the figure:

[0052] The cleaning hole component 2 further includes a long rod 25, a sleeve 26, a first motor 27, a convex block 28 and a limiting plate 29. The bottom of the long rod 25 passes through the top wall of the sleeve 26 and is slidably connected to it. The long rod 25 is coaxially connected to the sleeve 26. The top of the first motor 27 is fixedly connected to the bottom of the column 21. The output shaft of the first motor 27 passes through the bottom wall of the column 21 and is coaxially connected to the bottom of the sleeve 26. The top of the long rod 25 passes through the bottom wall of the support column 22 and is rotatably connected to it. The convex block 28 is fixedly connected to the outer periphery of the long rod 25. The limiting plate 29 is fixedly connected to the inner wall of the support column 22. The support plate 300 abuts against the convex block 28.

[0053] There are a pair of scraping knives 23 and ejection mechanisms 5, which are symmetrically distributed on both sides of the support column 22. The ejection mechanism 5 includes a spur gear 50, a rack 51 and a sliding sleeve 24. The spur gear 50 is coaxially connected to the top of the long rod 25. The rack 51 meshes with the spur gear 50. One end of the rack 51 is fixedly connected to the sliding sleeve 24. The sliding sleeve 24 passes through the side wall of the support column 22 and is slidably connected to it. The scraping knife 23 is vertically slidably installed on the sliding sleeve 24.

[0054] The ejection mechanism 5 further includes a pressing plate 52 and a pair of springs 53. The pressing plate 52 is fixedly connected to the inner wall of the support column 22. One end of the scraper 23 passes through the side wall of the sliding sleeve 24 and is slidably connected thereto. The bottom of the pressing plate 52 is of an inclined surface structure and abuts against the top of the scraper 23. One end of the spring 53 is fixedly connected to the bottom of the scraper 23, and the other end of the spring 53 is fixedly connected to the bottom wall of the sliding sleeve 24.

[0055] After the demolding is completed, the first motor 27 is energized to work. Its output shaft drives the sleeve 26 to rotate. The sleeve 26 drives the long rod 25 to rotate one circle. At this time, the convex block 28 rotates from one side of the limiting plate 29 to the other side. During this process, the long rod 25 drives the spur gear 50 to rotate. Through the meshing transmission between the spur gear 50 and the rack 51, the sliding sleeve 24 is pushed to slide horizontally out of the support column 22, and the scraper 23 is ejected and abuts against the inner wall of the exhaust hole 120. At the same time, as the sliding sleeve 24 slides out of the support column 22, under the action of the elastic force of the spring 53, the top of the scraper 23 slides upward along the inclined surface at the bottom of the pressing plate 52. The spring 53 gradually rebounds from the compressed state and pushes one end of the scraper 23 to slide upward in the sliding sleeve 24, so that the top of the scraper 23 is higher than the exhaust hole 120 when it abuts against the inner wall of the exhaust hole 120, preventing missed scraping of the top of the exhaust hole 120.

[0056] As the long rod 25 continues to rotate, the convex block 28 pushes the limiting plate 29 to drive the support column 22 to rotate synchronously with the long rod 25. The slider 220 at the bottom of the support column 22 slides along the thread groove 210 in the column 21, thereby driving the support column 22 to rotate and descend, so that the scraper 23 rotates to scrape off the metal chips while descending to scrape off the chips, and the cleaning and collection are carried out simultaneously, improving the cleaning effect.

[0057] Similarly, after the cleaning is completed, the first motor 27 works in the reverse direction, and the scraper 23 can be retracted to both sides of the support column 22 to prevent affecting the casting forming effect. After the casting is cooled and formed, as the first motor 27 continues to work, the support column 22 rotates and rises, and the casting can be ejected from the lower die core 12 to assist in demolding.

[0058] As Figures 1 to 12 shown:

[0059] The clamping and flipping mechanism 30 further includes a circular tube 302, a sliding rod 303, a tension spring 304, a roller 305 and a fixing plate 306. The top of the fixing plate 306 is fixedly connected to the housing 20. The other end of the support plate 300 is rotatably connected to the bottom of the fixing plate 306. The bottom of the fixing plate 306 is of an arc structure. The bottom of the circular tube 302 is fixedly connected to the support plate 300. The sliding rod 303 passes through the circular tube 302 and is slidably connected thereto. One end of the sliding rod 303 is rotatably connected to the roller 305. The roller 305 abuts against the outer periphery of the bottom of the fixing plate 306. The other end of the sliding rod 303 is fixedly connected to the clamping plate 301. The tension spring 304 is sleeved on the outer periphery of the sliding rod 303. One end of the tension spring 304 is fixedly connected to the circular tube 302. The other end of the tension spring 304 is fixedly connected to the clamping plate 301.

[0060] The driving mechanism 31 includes a plurality of transmission rods 310 and a plurality of first bevel gears 311. The transmission rods 310 are rotatably connected to the inner wall of the housing 20. The transmission rods 310 pass through the bottom of the fixing plate 306 and are rotatably connected thereto. The transmission rods 310 pass through the support plate 300 and are fixedly connected thereto. A plurality of first bevel gears 311 are coaxially connected to both ends of the plurality of transmission rods 310 respectively. Two adjacent first bevel gears 311 are meshed with each other. One side of the lower die base 10 is fixedly connected with a pair of second motors 312. The output shaft of the second motor 312 passes through the side wall of the lower die base 10 and is coaxially connected with a rotating shaft 313. The rotating shaft 313 passes through the housing 20 and is rotatably connected thereto. A plurality of second bevel gears 314 are coaxially connected to the outer periphery of the rotating shaft 313. The plurality of second bevel gears 314 are respectively meshed with the first bevel gears 311 of the plurality of driving mechanisms 31.

[0061] Rubber pads 3010 are fixedly connected to the clamping plates 301 on both sides of the column 21. Clamping knives 3011 are fixedly connected to the clamping plates 301 at both ends of the column 21. A support 315 is fixedly connected to the top of the column 21. The top of the support 315 is flush with the top of the support plate 300.

[0062] When the metal remaining on the inner wall of the exhaust hole 120 cools to form an annular metal sheet, as the scraper 23 works, it scrapes the metal sheet out of the exhaust hole 120. The bottom of this metal sheet falls onto the support plate 300 and is between the two clamping plates 301. Then, the second motor 312 is powered on to work. Its output shaft drives the rotating shaft 313 to rotate, and at the same time drives the second bevel gear 314 to rotate. Through the meshing transmission between the second bevel gear 314 and the first bevel gear 311, a plurality of tearing components 3 can be driven simultaneously. When one of the transmission rods 310 of the tearing component 3 rotates, through the meshing transmission between the first bevel gears 311 on two adjacent transmission rods 310, a plurality of clamping and flipping components are flipped simultaneously, and the bottom of the metal skin is fixed and torn from multiple directions.

[0063] During the flipping process of the support plate 300, the roller 305 at one end of the slide bar 303 slides along the bottom of the fixed plate 306. Since the bottom of the fixed plate 306 is an arc-shaped structure with an increasing radius, the slide bar 303 is squeezed, the tension spring 304 is stretched, and one of the clamping plates 301 is pushed close to the metal sheet, so that the bottom of the metal sheet is fixed by the two clamping plates 301. When the support plate 300 rotates 180 degrees, the tension spring 304 rebounds and drives the slide bar 303 to reset. At this time, the torn metal sheet falls and is broken.

[0064] In addition, the clamps 3011 and rubber pads 3010 are fixedly connected to the clamps 301 on both sides and ends of the column 21 respectively. The rubber pads 3010 can increase the friction force to play a fixing and tearing role, and the clamps 3011 can cut the metal sheets while squeezing. The two cooperate with each other to improve the crushing effect.

[0065] like Figures 1 to 5 As shown:

[0066] The cooling component 4 includes a fan 40, a nozzle 41, a partition 42 and an inclined plate 43. The fan 40 is fixedly connected to one end of the lower die base 10. A plurality of air inlet holes 100 and chip grooves 101 are respectively provided at the top and bottom of the other end of the lower die base 10. The partition 42 and the inclined plate 43 are both fixedly connected to the inner wall of the lower die base 10. The partition 42 is located between the air inlet holes 100 and the chip grooves 101 and is fixedly connected to the periphery of the shell 20. The inclined plate 43 is located at the bottom of the lower die base 10 and one end is flush with the bottom wall of the chip groove 101. The nozzle 41 is obliquely arranged at the top of the inclined plate 43. The air inlet of the fan 40 is connected to the top of the lower die base 10, and the air outlet of the fan 40 is connected to the nozzle 41.

[0067] During the die casting process, the fan 40 is operated to drive the air flow, and the air is drawn into the top of the lower die base 10 through the air inlet 100. Since the partition 42 divides the interior of the lower die base 10 into two parts, the high-speed airflow takes away the heat on the lower die core 12 when passing through the top of the lower die base 10, which can quickly cool down the casting. Then the airflow is injected into the nozzle 41 through the fan 40, and is sprayed out through the nozzle 41 at an angle, blowing the technical debris falling on the inclined plate 43 out of the chip groove 101, completing the cleaning, and improving the automation of the mold.

[0068] The present embodiment also provides a die-casting method for a die-casting mold used in the processing of an automotive capacitor cover plate, including the following steps. Step 1: Drive the upper die core 11 to descend by the upper die base 1 and fit it with the lower die core 12. Inject liquid metal into the upper die core 11, and cool the casting through the cooling component 4 provided on the lower die base 10 to enable it to quickly cool and form. Step 2: After the casting is demolded, through the hole-clearing component 2 provided on the lower die base 10, drive the scraper 23 to pop out and rotate downward closely against the exhaust hole 120 under the drive of the first motor 27, so as to scrape the metal debris remaining in the exhaust hole 120 into the housing 20. Step 3: After the cleaning is completed, the scraper 23 is retracted to both sides of the support column 22 under the action of the ejection mechanism 5, which can prevent the casting from being damaged during the die-casting process, and drive the first motor 27 in the reverse direction, and the support column 22 jacks up the exhaust hole 120 upward, which can assist in demolding. Step 4: The tearing component 3 provided in the housing 20 clamps the bottom of the metal sheet and turns it outward under the drive of the second motor 312, which can tear up the metal sheet falling into the exhaust hole 120 to prevent blocking the housing 20 and improve the cleaning effect. Step 5: Repeat the above steps for continuous die-casting processing, and during the die-casting process, blow out a high-speed air flow through the cooling component 4 to discharge the metal debris cleared from the exhaust hole 120 out of the lower die base 10.

[0069] It should be noted that the above specific implementation manners are only the preferred embodiments of the present invention and the applied technical principles. Those skilled in the art should understand that various modifications, equivalent replacements, changes, etc. can be made to the present invention. However, as long as these transformations do not deviate from the spirit of the present invention, they should be within the protection scope of the present invention. In addition, some terms used in the description and claims of this application are not restrictive, but are only for the convenience of clearly describing the positional relationship and functions between various components.

Claims

1. A die-casting mold for processing an automobile capacitor cover plate, comprising an upper mold base (1), a lower mold base (10), an upper mold core (11) and a lower mold core (12), wherein the outer periphery of the upper mold core (11) is fixedly connected to the bottom of the upper mold base (1), and the outer periphery of the lower mold core (12) is fixedly connected to the top of the lower mold base (10), the upper mold base (1) is vertically slidably mounted on the top of the lower mold base (10), the bottom of the upper mold core (11) and the top of the lower mold core (12) are mutually abutted, and the bottom wall of the lower mold core (12) is provided with a plurality of through-holes (120), characterized in that: The device also comprises a hole cleaning component (2), a tearing component (3) and a cooling component (4); the hole cleaning component (2) comprises a shell (20), a column (21), a support column (22), a scraper (23) and an ejection mechanism (5); the top of the shell (20) is connected to the bottom of the exhaust hole (120); the bottom of the column (21) is fixedly connected to the inner wall of the shell (20); a slider (220) is fixedly connected to one side of the bottom of the support column (22); a threaded groove (210) is provided on the inner wall of the column (21); and the slider (220) is slidably connected to the thread groove (210), the scraper (23) is slidably mounted on the top of the support column (22) through the pop-up mechanism (5), one side of the scraper (23) is in contact with the inner wall of the exhaust hole (120), the top wall of the scraper (23) is an inclined structure, the tearing component (3) is installed in the shell (20), the tearing component (3) is used to break the flake metal, the cooling component (4) is installed on the lower die base (10), and the cooling component (4) is used to cool the casting and discharge metal chips.

2. The die-casting mold for processing an automobile capacitor cover plate according to claim 1, characterized in that: The hole cleaning assembly (2) and the tearing assembly (3) are both provided with a plurality of clamping and flipping mechanisms (30) and a driving mechanism (31). The plurality of clamping and flipping mechanisms (30) are circumferentially distributed around the periphery of the column (21). The clamping and flipping mechanisms (30) include a support plate (300) and a pair of clamping plates (301). The support plate (300) is vertically rotatably mounted on the housing (20) via the driving mechanism (31). The bottom of one of the clamping plates (301) is fixedly connected to one end of the support plate (300) close to the column (21), and the other clamping plate (301) is slidably mounted on the support plate (300).

3. A die-casting mold for processing an automobile capacitor cover plate according to claim 2, characterized in that: The hole cleaning assembly (2) further comprises a long rod (25), a sleeve (26), a first motor (27), a bump (28) and a limit plate (29); the bottom of the long rod (25) passes through the top wall of the sleeve (26) and is slidably connected thereto; the long rod (25) and the sleeve (26) are coaxially connected; the top of the first motor (27) is fixedly connected to the bottom of the column (21); the output shaft of the first motor (27) passes through the bottom wall of the column (21) and is coaxially connected to the bottom of the sleeve (26); the top of the long rod (25) passes through the bottom wall of the support column (22) and is rotatably connected thereto; the bump (28) is fixedly connected to the periphery of the long rod (25); the limit plate (29) is fixedly connected to the inner wall of the support column (22); and the support plate (300) and the bump (28) are in contact with each other.

4. The die-casting mold for processing an automobile capacitor cover plate according to claim 3, characterized in that: A pair of scrapers (23) and ejection mechanisms (5) are provided and are centrally symmetrically distributed on both sides of the support column (22). The ejection mechanism (5) comprises a spur gear (50), a rack (51) and a sliding sleeve (24). The spur gear (50) is coaxially connected to the top of the long rod (25). The rack (51) and the spur gear (50) are meshed with each other. One end of the rack (51) is fixedly connected to the sliding sleeve (24). The sliding sleeve (24) passes through the side wall of the support column (22) and is slidably connected thereto. The scraper (23) can be vertically slidably mounted on the sliding sleeve (24).

5. The die-casting mold for processing an automobile capacitor cover plate according to claim 4, characterized in that: The ejection mechanism (5) further comprises an extrusion plate (52) and a pair of springs (53), wherein the extrusion plate (52) is fixedly connected to the inner wall of the support column (22), one end of the scraper (23) passes through the side wall of the sliding sleeve (24) and is slidably connected thereto, the bottom of the extrusion plate (52) is an inclined structure and contacts the top of the scraper (23), one end of the spring (53) is fixedly connected to the bottom of the scraper (23), and the other end of the spring (53) is fixedly connected to the bottom wall of the sliding sleeve (24).

6. The die-casting mold for processing an automobile capacitor cover plate according to claim 2, characterized in that: The clamping and flipping mechanism (30) further comprises a circular tube (302), a sliding rod (303), a tension spring (304), a roller (305) and a fixed plate (306). The top of the fixed plate (306) is fixedly connected to the housing (20). The other end of the support plate (300) is rotatably connected to the bottom of the fixed plate (306). The bottom of the fixed plate (306) is an arc-shaped structure. The bottom of the circular tube (302) is fixedly connected to the support plate (300). The sliding rod (303) is inserted through the fixed plate (306) to rotate. The sliding rod (303) passes through the circular tube (302) and is slidably connected thereto. One end of the sliding rod (303) is rotatably connected to the roller (305). The roller (305) and the bottom periphery of the fixing plate (306) are in contact with each other. The other end of the sliding rod (303) is fixedly connected to the clamping plate (301). The tension spring (304) is sleeved on the periphery of the sliding rod (303). One end of the tension spring (304) is fixedly connected to the circular tube (302), and the other end of the tension spring (304) is fixedly connected to the clamping plate (301).

7. The die-casting mold for processing a car capacitor cover plate according to claim 6, characterized in that: The driving mechanism (31) comprises a plurality of transmission rods (310) and a plurality of first bevel gears (311); the transmission rods (310) are rotatably connected to the inner wall of the housing (20); the transmission rods (310) pass through the bottom of the fixing plate (306) and are rotatably connected thereto; the transmission rods (310) pass through the support plate (300) and are fixedly connected thereto; the plurality of first bevel gears (311) are coaxially connected to two ends of the plurality of transmission rods (310), respectively; two adjacent first bevel gears (311) mesh with each other; a pair of second motors (312) are fixedly connected to one side of the lower die base (10); an output shaft of the second motor (312) passes through the side wall of the lower die base (10) and is coaxially connected to a rotating shaft (313); the rotating shaft (313) passes through the housing (20) and is rotatably connected thereto; a plurality of second bevel gears (314) are coaxially connected to the periphery of the rotating shaft (313); and the plurality of second bevel gears (314) are respectively meshed with the first bevel gears (311) of the plurality of driving mechanisms (31).

8. The die-casting mold for processing an automobile capacitor cover plate according to claim 7, characterized in that: Rubber pads (3010) are fixedly connected to the clamps (301) on both sides of the column (21), pliers (3011) are fixedly connected to the clamps (301) at both ends of the column (21), and a bracket (315) is fixedly connected to the top, and the top of the bracket (315) is flush with the top of the support plate (300).

9. The die-casting mold for processing an automobile capacitor cover plate according to claim 1, characterized in that: The cooling component (4) comprises a fan (40), a nozzle (41), a partition (42) and an inclined plate (43); the fan (40) is fixedly connected to one end of the lower die base (10); a plurality of air inlet holes (100) and chip removal grooves (101) are respectively provided at the top and bottom of the other end of the lower die base (10); the partition (42) and the inclined plate (43) are both fixedly connected to the inner wall of the lower die base (10); the partition (42) is located between the air inlet holes (100) and the chip removal grooves (101) and is fixedly connected to the periphery of the shell (20); the inclined plate (43) is located at the bottom of the lower die base (10) and one end is flush with the bottom wall of the chip removal groove (101); the nozzle (41) is obliquely arranged at the top of the inclined plate (43); the air inlet of the fan (40) is connected to the top of the lower die base (10); and the air outlet of the fan (40) is connected to the nozzle (41).

10. A die-casting method for a die-casting mold for processing a car capacitor cover, characterized in that: The steps include: Step 1: The upper die base (1) drives the upper die core (11) to descend and fit with the lower die core (12), injects liquid metal into the upper die core (11), and cools the casting through a cooling component (4) provided on the lower die base (10), so that the casting is quickly cooled and formed; Step 2: After the casting is demoulded, the hole cleaning assembly (2) provided on the lower die base (10) is driven by the first motor (27) to cause the scraper (23) to pop out and rotate and descend close to the exhaust hole (120), so that the metal debris remaining in the exhaust hole (120) can be scraped off into the housing (20); Step 3: After cleaning is completed, the scraper (23) is retracted to both sides of the support column (22) under the action of the ejection mechanism (5), which can prevent the casting from being damaged during the die-casting process, and the first motor (27) is driven in the reverse direction, so that the support column (22) pushes the exhaust hole (120) upward to assist demoulding; Step 4: The tearing assembly (3) disposed in the housing (20) clamps the bottom of the metal sheet and flips it outward under the drive of the second motor (312), so as to tear the metal sheet dropped from the exhaust hole (120) into pieces, thereby preventing the housing (20) from being blocked and improving the cleaning effect; Step 5: Repeat the above steps to perform continuous die casting, and during the die casting process, a high-speed airflow is blown out through the cooling component (4) to discharge the metal debris cleaned out of the exhaust hole (120) out of the lower die base (10).

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