An inductive magnetic blank composite die casting molding equipment

Abstract

This invention discloses an inductive magnetic blank composite die-casting molding equipment, relating to the field of powder molding technology. It includes a mounting platform, a control cabinet, a filling unit, a positioning unit, and a demolding unit. The mounting platform is used to mount and fix the control cabinet and the filling unit. The control cabinet is used to control the start and stop of the device. The filling unit is used to fill the material. The positioning unit is used to calibrate the position of the lower mold, facilitating accurate insertion of the upper mold into the lower mold for die casting. The demolding unit is used to remove the finished product to avoid damage. After the filling unit fills the lower mold with material, the control cabinet activates the positioning unit to calibrate the position of the lower mold before die casting. After die casting is completed, the finished product is removed through the demolding unit. This avoids friction and extrusion between the mold and the lower mold during ejection, which could lead to quality problems and thus improve product quality.

Description

Technical Field

[0001] This invention relates to the field of powder molding technology, specifically to an inductive magnetic blank composite die casting molding equipment. Background Technology

[0002] In the field of inductor blank composite die casting technology, with the miniaturization and high performance of electronic products, the requirements for the quality and precision of inductor blanks are becoming increasingly stringent. However, existing technologies face many challenges in this field, which seriously affect product quality and production efficiency, and urgently need to be addressed.

[0003] In the die-casting process of inductor blanks, the upper mold often needs to be pulled out multiple times. For example, in the die-casting of inductor blanks with complex internal structures or multiple leads, the upper mold needs to be opened and closed multiple times during the die-casting cycle to achieve step-by-step forming or demolding assistance for specific parts. However, due to the relatively simple mold positioning structure of traditional die-casting equipment, lateral forces inevitably occur between the upper and lower molds during multiple pull-out processes. This lateral force causes the lower mold to gradually shift, deviating from its initial precise installation position. After the mold shifts, the dimensional deviation of the lead forming part may lead to subsequent welding difficulties or reduced connection reliability, increasing the risk of electrical performance failure of the product. At the same time, traditional inductor blank die-casting processes and equipment are often designed with an emphasis on the forming of the main body of the blank, and the forming of the key part of the lead is not adequately considered and no precise structural guidance is provided.

[0004] Demolding is a crucial step after die casting of inductive magnetic blanks. However, traditional demolding methods often rely on simple, powerful ejection mechanisms. During demolding, the ejector rod acts directly on the magnetic blank, applying a large ejection force to detach it from the mold cavity. This method does not remove the adsorption force between the formed magnetic blank and the mold, directly increasing the friction between the magnetic blank and the mold, causing damage and deformation during the demolding process, and affecting product quality. Summary of the Invention

[0005] The purpose of this invention is to provide an inductive magnetic blank composite die casting molding equipment to solve the problems raised in the prior art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] The aforementioned inductive magnetic blank composite die-casting molding equipment includes an installation platform, a control cabinet, a filling unit, a positioning unit, and a demolding unit. The installation platform is placed on a horizontal foundation. The control cabinet is fixedly installed on the surface of the installation platform away from the horizontal foundation. The filling unit is fixedly installed on the control cabinet and slidably connected to the positioning unit. The positioning unit is fixedly installed on the surface of the installation platform away from the horizontal foundation. The positioning unit has the function of positioning and calibrating the demolding unit. The demolding unit is slidably connected to the positioning unit.

[0008] The mounting platform is used to install and fix the control cabinet and the filling unit. The control cabinet is used to control the start and stop of the device. The filling unit is used to fill the material. The positioning unit is used to calibrate the position of the lower mold, so that the upper mold can accurately extend into the lower mold for die casting. The demolding unit is used to remove the finished product to avoid damage to the finished product. After the filling unit fills the material into the lower mold, the control cabinet starts the positioning unit to calibrate the position of the lower mold and then the material is die cast. After the die casting is completed, the finished product is removed through the demolding unit to avoid friction and squeezing between the mold and the lower mold during the ejection process, which may cause quality problems and thus improve product quality.

[0009] Furthermore, the packing unit includes a packing cylinder, a packing tube, a storage box, a telescopic motor, and a straight rod. The fixed end of the telescopic motor is fixedly installed on the control cabinet. The telescopic end of the telescopic motor is fixedly connected to one end of the straight rod. The other end of the straight rod is fixedly connected to the packing cylinder. One end of the packing tube is conductively connected to the packing cylinder, and the other end is conductively connected to the storage box. The storage box has multiple sets of through holes at the end near the horizontal foundation. The storage box is slidably connected to the positioning unit.

[0010] Workers feed materials into the filling cylinder, which then passes through the filling tube into the storage box. When materials need to be added, the telescopic motor is extended to move the filling cylinder, filling tube, and storage box to the right and above the lower mold. The material in the storage box then flows into the first cavity of the lower mold, thus performing the die-casting process.

[0011] Furthermore, the positioning unit includes a drive motor, an upper hydraulic cylinder, a mounting cover plate, a slide rod, a slide table, a conveying plate, a support plate, and a lower hydraulic cylinder. The fixed end of the upper hydraulic cylinder is fixedly mounted on the mounting table. One end of the mounting cover plate is fixedly connected to the telescopic end of the upper hydraulic cylinder, and the other end is fixedly connected to the fixed end of the drive motor. The movable end of the drive motor is fixedly connected to the slide table. The slide rod is fixedly mounted on the surface of the conveying plate away from the horizontal foundation, and the slide rod is slidably connected to the slide table. The conveying plate is fixedly mounted on the surface of the support plate away from the horizontal foundation. The support plate is fixedly mounted on the telescopic end of the lower hydraulic cylinder. The lower hydraulic cylinder is fixedly mounted on the mounting table. The storage box is slidably mounted on the upper surface of the conveying plate. A circular groove is provided at the end of the conveying plate away from the horizontal foundation. The conveying plate is slidably connected to the demolding unit.

[0012] Furthermore, the positioning unit also includes an upper mold, a vertical plate, a memory spring, a telescopic rod, a drive coil, a segmented cylinder, and push blocks. The upper mold is equipped with multiple extrusion blocks and is fixedly mounted on the surface of the slide table near the horizontal foundation. A bar magnet is embedded in the upper mold near the horizontal foundation in the vertical direction. The vertical plate is fixedly mounted on the surface of the slide table near the horizontal foundation. One end of the memory spring is fixedly connected to the vertical plate, and the other end is fixedly connected to the fixed end of the telescopic rod. The fixed end of the long rod is slidably connected to the slide table. The telescopic end of the telescopic rod is fixedly connected to the segmented cylinder. The drive coil is fixedly mounted on the outer surface of the segmented cylinder and is electrically connected to the memory spring. The segmented cylinder is slidably connected to the upper mold via a connecting rod. There are two push blocks, symmetrically mounted on the surface of the upper mold near the horizontal foundation about the central axis of the upper mold. The drive coil is electrically connected to the demolding unit.

[0013] After the material in the storage box enters the first chamber of the lower mold, when die casting is required, the lower hydraulic cylinder is controlled to move the support plate and the conveyor plate upwards synchronously to the designated position. Then, the drive motor is started, which drives the mounting cover plate and the slide table to move downwards on the slide rod. During this process, the upper hydraulic cylinder is compressed. As the upper mold continues to move downwards, the segmented cylinder first contacts the conveyor plate. Under the extrusion force of the conveyor plate, the segmented cylinder is forced to compress the telescopic rod and move a certain distance towards the slide table. At this time, the upper mold and the segmented cylinder generate relative motion. The bar magnet inside the upper mold moves in the drive coil, thereby changing the magnetic flux and generating a positive current in the drive coil. At this time, the current is supplied to the memory spring, which receives... The expansion and elongation after the current is applied pushes the telescopic rod to bring the segmented cylinders closer together, thereby repositioning and calibrating the lower limiting cylinder. This prevents the upper and lower molds from shifting during multiple pull-out processes, reducing product deformation caused by die casting when the product shifts, and improving the yield rate. At this time, the push block enters the limiting cylinder through the limiting cylinder to prepare for die casting. After one die casting process is completed, the drive motor drives the upper mold to rise, and the segmented cylinders pull the telescopic rod to elongate under their own gravity. At this time, the drive coils of the upper mold and the segmented cylinders generate relative displacement again. The reverse current generated in the drive coil is sent to the electric ejector rod to control the electric ejector rod to start elongating and assist in demolding.

[0014] Furthermore, the demolding unit includes a lower mold, a limiting cylinder, an arc-shaped push plate, a return spring, a moving plate, a buffer spring, a bent rod, an electric push rod, a holding box, a pressure plate, a first chamber, a second chamber, a pull rod, and an inductor coil. The lower mold is fixedly connected to the limiting cylinder. In the vertical direction, the lower mold has multiple sets of first chambers for material forming. In the horizontal direction, the lower mold has multiple sets of second chambers for the movement of the arc-shaped push plate. The limiting cylinder consists of an inner cylinder and an outer cylinder, and is slidably installed in a circular groove on the conveyor plate. One end of the arc-shaped push plate is fixedly connected to the inner wall of the limiting cylinder via a return spring, and the other end is slidably installed in the second chamber. The moving plate... The bend rod is connected to the inner surface of the limiting cylinder near the horizontal foundation via a buffer spring. Both ends of the bend rod are fixedly connected to the moving plate, and the middle of the bend rod is fixedly connected to the pull rod. The fixed end of the electric push rod is fixedly connected to the inner surface of the limiting cylinder near the horizontal foundation. The telescopic end of the electric push rod is slidably installed in the first chamber. The container is fixedly installed in the lower mold and contains magnetorheological fluid. The container is connected to the first chamber via a pipe. The pressure plate is slidably installed inside the container. The end of the pressure plate near the horizontal foundation is fixedly connected to the pull rod. The pull rod is slidably connected to the container. The inductor coil is fixedly installed on the outer surface of the inner cylinder of the limiting cylinder. The electric push rod is electrically connected to the drive coil.

[0015] As the pusher block gradually moves downwards within the limiting cylinder, it gradually compresses the arc-shaped push plate through its side, simultaneously stretching the return spring. This causes the arc-shaped push plate to gradually move from the second chamber into the first chamber. During this process, the bottom of the pusher block contacts the moving plate and compresses the buffer spring. The control cabinet opens the one-way valve above, causing the pull rod to move downwards under the transmission action of the bent rod. This moves the pressure plate in the holding tank downwards, squeezing the magnetorheological fluid in the holding tank into the space between the first chamber and the antimagnetic soft membrane through the one-way valve above, thus performing die casting. When demolding is required, when the moving plate reaches its limit position, the control cabinet supplies current to the inductor coil, generating a magnetic field. This causes the magnetorheological fluid between the first chamber and the antimagnetic soft membrane to change from a liquid to a solid state, compressing the molded product. This releases the adhesion force formed between the finished product and the inner wall of the first chamber during compression, completing one demolding step. Meanwhile, the reverse current generated in the drive coil is supplied to the electric ejector rod, which pushes the finished product out of the lower mold, completing the secondary demolding step. This avoids damage to the finished product during the demolding process, which could lead to a decrease in yield. The control cabinet stops supplying current to the inductor coil. At this time, the magnetorheological fluid between the first chamber and the antimagnetic soft film changes from solid to liquid again. During the electric ejector rod's reset process, the liquid magnetorheological fluid in the antimagnetic soft film and the inner wall of the first chamber is squeezed and flows back to the holding tank below, preparing for the next die casting.

[0016] Furthermore, a layer of antimagnetic soft film is provided on the inner surface of the first cavity.

[0017] In order to allow the magnetorheological fluid in the holding tank to enter the first chamber, after the die casting is completed, a magnetic field is generated by passing current through the inductor coil. This causes the magnetorheological fluid between the first chamber and the antimagnetic soft film to change from a liquid state to a solid state, which then pushes the finished product and releases the adsorption force between the finished product and the first chamber during the molding process. This avoids the strong friction between the finished product and the first chamber when it is directly ejected by the electric ejector rod, which could lead to quality problems such as deformation or damage to the appearance of the finished product.

[0018] Furthermore, the container is connected to the first chamber via two one-way valves.

[0019] In order to transport the magnetorheological fluid inside the container to the space between the first chamber and the antimagnetic membrane during the pressing process, and to reabsorb the magnetorheological fluid in the first chamber back into the container during the lifting process, so as not to affect the volume of material feeding and avoid the occurrence of non-standard finished products.

[0020] Furthermore, the limiting cylinder is provided with a rectangular through groove, and the push block and the rectangular through groove of the limiting cylinder are on the same vertical axis.

[0021] To ensure the pusher blocks can pass smoothly through the calibrated limiting cylinder, and to prevent them from passing through the limiting cylinder when not calibrated, thus avoiding die casting in an uncalibrated lower mold position and causing deformation of the finished product, the yield rate of finished products is improved.

[0022] Furthermore, the push block has a right-angled trapezoidal structure, with the end of the push block near the horizontal foundation being the short side and the end of the push block near the central axis of the upper mold being the hypotenuse of the right-angled trapezoid.

[0023] In order to gradually push the arc-shaped pusher plate to move inside the second chamber during the downward movement of the block, thereby extruding and molding the key part of the finished product at the pin during the die casting process in the first chamber.

[0024] Furthermore, the control cabinet is equipped with start / stop buttons.

[0025] When the die-casting task is completed or an emergency occurs, such as abnormal equipment vibration or odor, the stop button can be pressed quickly to stop the equipment, which greatly improves the convenience of operation.

[0026] Compared with the prior art, the beneficial effects of the present invention are:

[0027] 1. In this invention, as the upper mold moves downwards, the segmented cylinders move under the pressure of the conveyor plate, creating relative motion with the upper mold. This changes the magnetic flux, generating a positive current in the drive coil, which is supplied to the memory spring. This causes the spring to expand and extend, pushing the telescopic rod to bring the segmented cylinders closer together. This restricts the cylinders from repositioning and recalibrating, thus preventing misalignment between the upper and lower molds during multiple pull-out processes. This reduces product deformation caused by die casting when the product is misaligned, improving the yield rate. After one die casting process is completed, as the upper mold rises, the segmented cylinders extend the telescopic rod under their own weight. At this time, the drive coils of the upper mold and the segmented cylinders again experience relative displacement. The reverse current generated in the drive coil is supplied to the electric ejector rod, controlling the electric ejector rod to extend and assist in demolding.

[0028] 2. In this invention, when the pusher pushes the arc-shaped pusher plate to move and extrudes the material to form a mold, the control cabinet controls the opening of the one-way valve above. The pusher moves downward, causing the pull rod to move downward, which in turn moves the pressure plate downward. This causes the magnetorheological fluid in the container to flow from the one-way valve above into the space between the first chamber and the antimagnetic soft membrane, thus performing die casting. The control cabinet then supplies current to the inductor coil, thereby generating a magnetic field. This causes the magnetorheological fluid between the first chamber and the antimagnetic soft membrane to change from a liquid to a solid state, extruding the molded product and releasing the adsorption force formed between the product and the inner wall of the first chamber during compression, completing the first demolding step. At this time, the reverse current generated in the drive coil is sent to the electric ejector rod, which pushes the product out of the lower mold, completing the second demolding step. This avoids damage to the product during the demolding process, which would reduce the yield rate. Attached Figure Description

[0029] Figure 1 This is a front view structural schematic diagram of an inductive magnetic blank composite die casting molding equipment according to the present invention;

[0030] Figure 2 This is a schematic diagram of the overall appearance structure of an inductive magnetic blank composite die casting molding equipment according to the present invention;

[0031] Figure 3 This invention relates to an inductive magnetic blank composite die casting molding equipment. Figure 2 Another perspective structural diagram;

[0032] Figure 4 This is a schematic diagram of the installation positions of the telescopic rod, the segmented cylinder, and the slide table in an inductive magnetic blank composite die-casting molding equipment according to the present invention.

[0033] Figure 5 This is a schematic diagram showing the installation positions of the push block, drive coil, vertical plate, memory spring, and telescopic rod in an inductive magnetic blank composite die-casting molding equipment of the present invention.

[0034] Figure 6 This is a schematic diagram of the demolding unit of an inductive magnetic blank composite die-casting molding equipment according to the present invention;

[0035] Figure 7 This is a schematic diagram of the internal structure of the limiting cylinder of the inductive magnetic blank composite die casting molding equipment of the present invention, from bottom to top.

[0036] Figure 8 This is a schematic diagram of the internal structure of the limiting cylinder of the inductive magnetic blank composite die casting molding equipment of the present invention from top to bottom;

[0037] Figure 9 This is a schematic diagram of the internal structure of the limiting cylinder in the side direction of an inductive magnetic blank composite die-casting molding equipment according to the present invention;

[0038] Figure 10This is a top view structural schematic diagram of the demolding unit of an inductive magnetic blank composite die casting molding equipment according to the present invention;

[0039] Figure 11 This invention relates to an inductive magnetic blank composite die casting molding equipment. Figure 10 A partial cross-sectional view of the structure at point AA.

[0040] In the diagram: 1. Mounting platform; 2. Control cabinet; 3. Packing unit; 31. Packing cylinder; 32. Packing tube; 33. Storage box; 34. Telescopic motor; 35. Straight rod; 4. Positioning unit; 41. Drive motor; 42. Upper hydraulic cylinder; 43. Mounting cover plate; 44. Slide rod; 45. Slide table; 46. Conveying plate; 47. Support plate; 48. Lower hydraulic cylinder; 49. Upper mold; 410. Vertical plate; 411. Memory spring; 412. Telescopic rod; 413. Drive coil; 414. Split cylinder; 415. Push block; 5. Demolding unit; 51. Lower mold; 52. Restricting cylinder; 53. Arc-shaped push plate; 54. Return spring; 55. Moving plate; 56. Buffer spring; 57. Bending rod; 58. Electric push rod; 59. Container box; 510. Pressure plate; 511. First chamber; 512. Second chamber; 513. Pull rod; 514. Inductor coil. Detailed Implementation

[0041] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0042] Example: Figures 1-11 As shown, the present invention provides a technical solution:

[0043] like Figure 1 , 2 As shown, an inductive magnetic blank composite die casting molding equipment includes a mounting platform 1, a control cabinet 2, a filling unit 3, a positioning unit 4, and a demolding unit 5. The mounting platform 1 is placed on a horizontal foundation. The control cabinet 2 is fixedly installed on the surface of the mounting platform 1 away from the horizontal foundation. The filling unit 3 is fixedly installed on the control cabinet 2. The filling unit 3 is slidably connected to the positioning unit 4. The positioning unit 4 is fixedly installed on the surface of the mounting platform 1 away from the horizontal foundation. The positioning unit 4 has the function of positioning and calibrating the demolding unit 5. The demolding unit 5 is slidably connected to the positioning unit 4.

[0044] Mounting platform 1 is used to mount and fix control cabinet 2 and filling unit 3. Control cabinet 2 is used to control the start and stop of the device. Filling unit 3 is used to fill the material. Positioning unit 4 is used to calibrate the position of lower mold 51 so that upper mold 49 can accurately extend into lower mold 51 for die casting. Demolding unit 5 is used to remove the finished product to avoid damage to the finished product. After the filling unit 3 fills the material into the lower mold 51, the control cabinet 2 starts the positioning unit 4 to calibrate the position of lower mold 51 and then the material is die cast. After the die casting is completed, the finished product is removed through demolding unit 5 to avoid friction and squeezing between the mold and lower mold 51 during the ejection process, which may cause quality problems and thus improve product quality.

[0045] like Figure 3 As shown, the packing unit 3 includes a packing cylinder 31, a packing tube 32, a storage box 33, a telescopic motor 34, and a straight rod 35. The fixed end of the telescopic motor 34 is fixedly installed on the control cabinet 2. The telescopic end of the telescopic motor 34 is fixedly connected to one end of the straight rod 35, and the other end of the straight rod 35 is fixedly connected to the packing cylinder 31. One end of the packing tube 32 is electrically connected to the packing cylinder 31, and the other end is electrically connected to the storage box 33. The storage box 33 has multiple sets of through holes at the end near the horizontal foundation, and the storage box 33 is slidably connected to the positioning unit 4.

[0046] Workers feed materials into the filling cylinder 31, and the materials enter the storage box 33 through the filling pipe 32. When materials need to be added, the telescopic motor 34 is extended by controlling it, which drives the filling cylinder 31, the filling pipe 32 and the storage box 33 to move synchronously to the right above the lower mold 51. The materials in the storage box 33 then flow into the first chamber 511 in the lower mold 51, thereby performing the die casting process.

[0047] like Figure 3 As shown, the positioning unit 4 includes a drive motor 41, an upper hydraulic cylinder 42, a mounting cover plate 43, a slide rod 44, a slide table 45, a conveying plate 46, a support plate 47, and a lower hydraulic cylinder 48. The fixed end of the upper hydraulic cylinder 42 is fixedly mounted on the mounting platform 1. One end of the mounting cover plate 43 is fixedly connected to the telescopic end of the upper hydraulic cylinder 42, and the other end is fixedly connected to the fixed end of the drive motor 41. The movable end of the drive motor 41 is fixedly connected to the slide table 45. The slide rod 44 is fixedly mounted on the surface of the conveying plate 46 away from the horizontal foundation. The slide rod 44 is slidably connected to the slide table 45. The conveying plate 46 is fixedly mounted on the surface of the support plate 47 away from the horizontal foundation. The support plate 47 is fixedly mounted on the telescopic end of the lower hydraulic cylinder 48. The lower hydraulic cylinder 48 is fixedly mounted on the mounting platform 1. The storage box 33 is slidably mounted on the upper surface of the conveying plate 46. A circular groove is provided at the end of the conveying plate 46 away from the horizontal foundation. The conveying plate 46 is slidably connected to the demolding unit 5.

[0048] like Figure 4 , 5As shown, the positioning unit 4 also includes an upper mold 49, a vertical plate 410, a memory spring 411, a telescopic rod 412, a drive coil 413, a split cylinder 414, and a push block 415. The upper mold 49 is equipped with multiple extrusion blocks and is fixedly mounted on the surface of the slide table 45 near the horizontal foundation. A bar magnet is built into the upper mold 49 near the horizontal foundation in the vertical direction. The vertical plate 410 is fixedly mounted on the surface of the slide table 45 near the horizontal foundation. One end of the memory spring 411 is fixedly connected to the vertical plate 410, and the other end is fixedly connected to the telescopic rod 412. The fixed end of the telescopic rod 412 is fixedly connected, the fixed end of the telescopic rod 410 is slidably connected to the slide table 45, the telescopic end of the telescopic rod 412 is fixedly connected to the segmented cylinder 414, the drive coil 413 is fixedly installed on the outer surface of the segmented cylinder 414, the drive coil 413 is electrically connected to the memory spring 411, the segmented cylinder 414 is slidably connected to the upper mold 49 through the connecting rod, there are two push blocks 415, which are symmetrically installed on the surface of the upper mold 49 near the horizontal foundation along the central axis of the upper mold 49, and the drive coil 413 is electrically connected to the demolding unit 4.

[0049] After the material in storage box 33 enters the first chamber 511 of the lower mold 51, when die casting is required, the lower hydraulic cylinder 48 is controlled to drive the support plate 47 and the conveyor plate 46 to move upward synchronously to the designated position. Then, the drive motor 41 is started, thereby driving the mounting cover plate 43 and the slide table 45 to move downward on the slide rod 44. During this process, the upper hydraulic cylinder 42 is compressed. As the upper mold 49 continues to move downward, the segmented cylinder 414 first contacts the conveyor plate 46. Under the squeezing force of the conveyor plate 46, the segmented cylinder 414 is compressed and moves a certain distance towards the slide table 45. At this time, the upper mold 49 and the segmented cylinder 414 generate relative motion. The bar magnet in the upper mold 49 moves in the drive coil 413, thereby changing the magnetic flux and generating a positive current in the drive coil 413. At this time, the current is supplied to the memory spring 411, which remembers the magnetic flux. After receiving current, the spring 411 expands and elongates, thereby pushing the telescopic rod 412 to bring the segmented cylinders 414 closer together. This repositions and calibrates the lower limiting cylinder 52, preventing misalignment between the upper mold 49 and the lower mold 51 during multiple pull-out processes. This reduces product deformation caused by die casting when the product is misaligned, improving the yield of the finished product. At this time, the push block 415 enters the limiting cylinder 52 through the limiting cylinder 52 to prepare for die casting. After one die casting process is completed, the drive motor 41 drives the upper mold 49 to rise. Under its own gravity, the segmented cylinders 414 pull the telescopic rod 412 to elongate. At this time, the drive coils 413 of the upper mold 49 and the segmented cylinders 414 generate relative displacement again. The reverse current generated in the drive coil 413 is then sent to the electric ejector rod 58 to control the electric ejector rod 58 to start elongation and assist in demolding.

[0050] like Figure 6 , 7As shown in Figures 8, 9, 10, and 11, the demolding unit 5 includes a lower mold 51, a limiting cylinder 52, an arc-shaped push plate 53, a return spring 54, a moving plate 55, a buffer spring 56, a bent rod 57, an electric push rod 58, a holding box 59, a pressure plate 510, a first chamber 511, a second chamber 512, a pull rod 513, and an inductor coil 514. The lower mold 51 is fixedly connected to the limiting cylinder 52. Multiple sets of first chambers 511 are opened in the vertical direction of the lower mold 51, which are used for material forming. Multiple sets of second chambers 512 are opened in the horizontal direction of the lower mold 51, which are used for the movement of the arc-shaped push plate 53. The limiting cylinder 52 consists of an inner cylinder and an outer cylinder. The limiting cylinder 52 is slidably installed in a circular groove opened in the conveyor plate 46. One end of the arc-shaped push plate 53 is fixedly connected to the inner wall of the limiting cylinder 52 through the return spring 54, and the other end is slidably installed in the first chamber 511. Inside the second chamber 512, the movable plate 55 is connected to the inner surface of the limiting cylinder 52 near the horizontal foundation via a buffer spring 56. Both ends of the bent rod 57 are fixedly connected to the movable plate 55, and the middle of the bent rod 57 is fixedly connected to the pull rod 513. The fixed end of the electric push rod 58 is fixedly connected to the inner surface of the limiting cylinder 52 near the horizontal foundation, and the telescopic end of the electric push rod 58 is slidably installed in the first chamber 511. The container 59 is fixedly installed in the lower mold 51. The container 59 contains magnetorheological fluid and is connected to the first chamber 511 via a pipe. The pressure plate 510 is slidably installed inside the container 59. The end of the pressure plate 510 near the horizontal foundation is fixedly connected to the pull rod 513, and the pull rod 513 is slidably connected to the container 59. The inductor coil 514 is fixedly installed on the outer surface of the inner cylinder of the limiting cylinder 52, and the electric push rod 58 is electrically connected to the drive coil 413.

[0051] As the pusher block 415 gradually moves downward in the limiting cylinder 52, it gradually squeezes the arc-shaped push plate 53 through the side of the pusher block 415 while stretching the reset spring 54. This causes the arc-shaped push plate 53 to gradually enter the first chamber 511 from the second chamber 512. During this process, the bottom of the pusher block 415 contacts the moving plate 55 and compresses the buffer spring 56. The control cabinet 2 controls the opening of the one-way valve above. At this time, under the transmission action of the bent rod 57, the pull rod 513 is pulled downward, thereby driving the pressure plate 510 in the holding box 59 to move downward and squeezing the magnetorheological fluid in the holding box 59 into the space between the first chamber 511 and the antimagnetic soft film through the one-way valve above, thus performing die casting. When demolding is required, when the moving plate 55 moves to the limit position, the control cabinet 2 passes current into the inductor coil 514 to generate a magnetic field, causing the magnetorheological fluid between the first chamber 511 and the antimagnetic soft film to change from a liquid state to a solid state, thus squeezing the molded finished product. The adsorption force formed between the finished product and the inner wall of the first chamber 511 during compression is released, completing the first demolding step. At this time, the reverse current generated in the drive coil 413 is supplied to the electric ejector rod 58, which pushes the finished product out of the lower mold 51, completing the second demolding step. This avoids damage to the finished product during the demolding process, which could lead to a decrease in yield. The control cabinet 2 stops supplying current to the inductor coil 514. At this time, the magnetorheological fluid between the first chamber 511 and the antimagnetic soft film changes from solid to liquid again. During the reset process of the electric ejector rod 58, the liquid magnetorheological fluid in the antimagnetic soft film and the inner wall of the first chamber 511 is squeezed and flows back to the holding tank 59 below, preparing for the next die casting.

[0052] like Figure 6 As shown, a layer of antimagnetic soft film is provided on the inner surface of the first chamber 511.

[0053] In order to allow the magnetorheological fluid in the container 59 to enter the first chamber 511, after the die casting is completed, a magnetic field is generated by passing current through the inductor coil 514. This causes the magnetorheological fluid between the first chamber 511 and the antimagnetic soft film to change from a liquid state to a solid state, which then pushes the molded product and releases the adsorption force between the product and the first chamber 511 during the molding process. This avoids strong friction between the product and the first chamber 511 when the product is directly ejected by the electric ejector rod 58, which could lead to quality problems such as product deformation or damage to the appearance.

[0054] like Figure 11 As shown, the container 59 and the first chamber 511 are connected by two one-way valves.

[0055] In order to transport the magnetorheological fluid inside the holding box 59 to the space between the first chamber 511 and the antimagnetic soft membrane during the pressing process of the pressure plate 510, the magnetorheological fluid in the first chamber 511 is reabsorbed back into the holding box 59 during the lifting process of the pressure plate 510, so as not to affect the feeding volume of the material and avoid the occurrence of non-standard finished products.

[0056] like Figure 5 , 6 As shown, a rectangular through groove is provided on the limiting cylinder 52, and the push block 415 and the rectangular through groove of the limiting cylinder 52 are on the same vertical axis.

[0057] In order to ensure that the pusher block 415 can pass smoothly through the calibrated limiting cylinder 52, and at the same time cannot pass through the limiting cylinder 52 when it is not calibrated, the die casting process is avoided if the lower mold 51 is not calibrated, which would cause the finished product to be deformed, thus improving the yield of finished products.

[0058] like Figure 5 As shown, the push block 415 has a right-angled trapezoidal structure. The end of the push block 415 closest to the horizontal foundation is the short side, and the end of the push block 415 closest to the central axis of the upper mold 49 is the hypotenuse of the right-angled trapezoid.

[0059] In order to gradually push the arc-shaped pusher plate 53 to move inside the second chamber 512 during the downward movement of the block, thereby extruding and molding the key part of the finished product in the first chamber 511 at the pin during the die casting process.

[0060] like Figure 1 As shown, start and stop buttons are installed on control cabinet 2.

[0061] When the die-casting task is completed or an emergency occurs, such as abnormal equipment vibration or odor, the stop button can be pressed quickly to stop the equipment, which greatly improves the convenience of operation.

[0062] Working principle of the invention:

[0063] Workers feed materials into the filling cylinder 31, and the materials enter the storage box 33 through the filling pipe 32. When materials need to be added, the telescopic motor 34 is extended by controlling it, which drives the filling cylinder 31, the filling pipe 32 and the storage box 33 to move synchronously to the right above the lower mold 51. The materials in the storage box 33 then flow into the first chamber 511 in the lower mold 51, thereby performing the die casting process.

[0064] After the material in storage box 33 enters the first chamber 511 of the lower mold 51, when die casting is required, the lower hydraulic cylinder 48 is controlled to drive the support plate 47 and the conveyor plate 46 to move upward synchronously to the designated position. Then, the drive motor 41 is started, thereby driving the mounting cover plate 43 and the slide table 45 to move downward on the slide rod 44. During this process, the upper hydraulic cylinder 42 is compressed. As the upper mold 49 continues to move downward, the segmented cylinder 414 first contacts the conveyor plate 46. Under the squeezing force of the conveyor plate 46, the segmented cylinder 414 is compressed and moves a certain distance towards the slide table 45. At this time, the upper mold 49 and the segmented cylinder 414 generate relative motion. The bar magnet in the upper mold 49 moves in the drive coil 413, thereby changing the magnetic flux and generating a positive current in the drive coil 413. At this time, the current is supplied to the memory spring 411, which remembers the magnetic flux. After receiving current, the spring 411 expands and elongates, thereby pushing the telescopic rod 412 to bring the segmented cylinders 414 closer together. This repositions and calibrates the lower limiting cylinder 52, preventing misalignment between the upper mold 49 and the lower mold 51 during multiple pull-out processes. This reduces product deformation caused by die casting when the product is misaligned, improving the yield of the finished product. At this time, the push block 415 enters the limiting cylinder 52 through the limiting cylinder 52 to prepare for die casting. After one die casting process is completed, the drive motor 41 drives the upper mold 49 to rise. Under its own gravity, the segmented cylinders 414 pull the telescopic rod 412 to elongate. At this time, the drive coils 413 of the upper mold 49 and the segmented cylinders 414 generate relative displacement again. The reverse current generated in the drive coil 413 is then sent to the electric ejector rod 58 to control the electric ejector rod 58 to start elongation and assist in demolding.

[0065] As the pusher block 415 gradually moves downward in the limiting cylinder 52, it gradually squeezes the arc-shaped push plate 53 through the side of the pusher block 415 while stretching the reset spring 54. This causes the arc-shaped push plate 53 to gradually enter the first chamber 511 from the second chamber 512. During this process, the bottom of the pusher block 415 contacts the moving plate 55 and compresses the buffer spring 56. The control cabinet 2 controls the opening of the one-way valve above. At this time, under the transmission action of the bent rod 57, the pull rod 513 is pulled downward, thereby driving the pressure plate 510 in the holding box 59 to move downward and squeezing the magnetorheological fluid in the holding box 59 into the space between the first chamber 511 and the antimagnetic soft film through the one-way valve above, thus performing die casting. When demolding is required, when the moving plate 55 moves to the limit position, the control cabinet 2 passes current into the inductor coil 514 to generate a magnetic field, causing the magnetorheological fluid between the first chamber 511 and the antimagnetic soft film to change from a liquid state to a solid state, thus squeezing the molded finished product. The adsorption force formed between the finished product and the inner wall of the first chamber 511 during compression is released, completing the first demolding step. At this time, the reverse current generated in the drive coil 413 is supplied to the electric ejector rod 58, which pushes the finished product out of the lower mold 51, completing the second demolding step. This avoids damage to the finished product during the demolding process, which could lead to a decrease in yield. The control cabinet 2 stops supplying current to the inductor coil 514. At this time, the magnetorheological fluid between the first chamber 511 and the antimagnetic soft film changes from solid to liquid again. During the reset process of the electric ejector rod 58, the liquid magnetorheological fluid in the antimagnetic soft film and the inner wall of the first chamber 511 is squeezed and flows back to the holding tank 59 below, preparing for the next die casting.

[0066] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An inductive magnetic blank composite die-casting molding equipment, characterized in that: The aforementioned inductive magnetic blank composite die casting molding equipment includes a mounting platform (1), a control cabinet (2), a filling unit (3), a positioning unit (4), and a demolding unit (5). The mounting platform (1) is placed on a horizontal foundation. The control cabinet (2) is fixedly installed on the surface of the mounting platform (1) away from the horizontal foundation. The filling unit (3) is fixedly installed on the control cabinet (2). The filling unit (3) is slidably connected to the positioning unit (4). The positioning unit (4) is fixedly installed on the surface of the mounting platform (1) away from the horizontal foundation. The positioning unit (4) has the function of positioning and calibrating the demolding unit (5). The demolding unit (5) is slidably connected to the positioning unit (4). The demolding unit (5) includes a lower mold (51), a limiting cylinder (52), an arc-shaped push plate (53), a return spring (54), a moving plate (55), a buffer spring (56), a bent rod (57), an electric push rod (58), a holding box (59), a pressure plate (510), a first chamber (511), a second chamber (512), a pull rod (513), and an inductor coil (514). The lower mold (51) is fixedly connected to the limiting cylinder (52). In the vertical direction, the lower mold (51) has multiple sets of first chambers (511, 52, 53, 54, 55, 56, 57, 58, 59, 510, 511, 512, 513, 514, 515, 515, 516, 517, 518, 519, 510 ...1, 512, 513, 514, 515, 515, 516, 517, 518, 519, 510, 511, 512, 513, and 514. 11), the first chamber (511) is used for material forming. In the horizontal direction, the lower mold (51) has multiple sets of second chambers (512). The second chambers (512) are used for the movement of the arc-shaped push plate (53). The limiting cylinder (52) is composed of an inner cylinder and an outer cylinder. The limiting cylinder (52) is slidably installed in the circular groove of the conveying plate (46). One end of the arc-shaped push plate (53) is fixedly connected to the inner wall of the limiting cylinder (52) by a return spring (54), and the other end is slidably installed in the second chamber (512). Inside the mold, the movable plate (55) is connected to the inner surface of the limiting cylinder (52) near the horizontal foundation via a buffer spring (56). Both ends of the bent rod (57) are fixedly connected to the movable plate (55), and the middle part of the bent rod (57) is fixedly connected to the pull rod (513). The fixed end of the electric push rod (58) is fixedly connected to the inner surface of the limiting cylinder (52) near the horizontal foundation. The telescopic end of the electric push rod (58) is slidably installed in the first chamber (511). The container (59) is fixedly installed in the lower mold (51). Inside, the container (59) contains magnetorheological fluid. The container (59) is connected to the first chamber (511) through a pipe. The pressure plate (510) is slidably installed inside the container (59). The end of the pressure plate (510) near the horizontal foundation is fixedly connected to the pull rod (513). The pull rod (513) is slidably connected to the container (59). The inductor coil (514) is fixedly installed on the outer surface of the inner cylinder of the limiting cylinder (52). The electric push rod (58) is electrically connected to the drive coil (413).

2. The inductive magnetic blank composite die-casting molding equipment according to claim 1, characterized in that: The packing unit (3) includes a packing cylinder (31), a packing tube (32), a storage box (33), a telescopic motor (34), and a straight rod (35). The fixed end of the telescopic motor (34) is fixedly installed on the control cabinet (2). The telescopic end of the telescopic motor (34) is fixedly connected to one end of the straight rod (35). The other end of the straight rod (35) is fixedly connected to the packing cylinder (31). One end of the packing tube (32) is conductively connected to the packing cylinder (31), and the other end is conductively connected to the storage box (33). The storage box (33) has multiple sets of through holes at one end near the horizontal foundation. The storage box (33) is slidably connected to the positioning unit (4).

3. The inductive magnetic blank composite die-casting molding equipment according to claim 2, characterized in that: The positioning unit (4) includes a drive motor (41), an upper hydraulic cylinder (42), a mounting cover plate (43), a slide rod (44), a slide table (45), a conveying plate (46), a support plate (47), and a lower hydraulic cylinder (48). The fixed end of the upper hydraulic cylinder (42) is fixedly mounted on the mounting platform (1). One end of the mounting cover plate (43) is fixedly connected to the telescopic end of the upper hydraulic cylinder (42), and the other end is fixedly connected to the fixed end of the drive motor (41). The movable end of the drive motor (41) is fixedly connected to the slide table (45). The slide rod (44) is fixedly mounted on the lower hydraulic cylinder (48). The conveyor plate (46) is located on the surface away from the horizontal foundation. The slide rod (44) is slidably connected to the slide table (45). The conveyor plate (46) is fixedly installed on the surface away from the horizontal foundation of the support plate (47). The support plate (47) is fixedly installed on the telescopic end of the lower hydraulic cylinder (48). The lower hydraulic cylinder (48) is fixedly installed on the mounting platform (1). The storage box (33) is slidably installed on the upper surface of the conveyor plate (46). A circular groove is provided on the end of the conveyor plate (46) away from the horizontal foundation. The conveyor plate (46) is slidably connected to the demolding unit (5).

4. The inductive magnetic blank composite die-casting molding equipment according to claim 3, characterized in that: The positioning unit (4) further includes an upper mold (49), a vertical plate (410), a memory spring (411), a telescopic rod (412), a drive coil (413), a split cylinder (414), and a push block (415). The upper mold (49) is equipped with multiple extrusion blocks. The upper mold (49) is fixedly installed on the surface of the slide table (45) near the horizontal foundation. A bar magnet is built into the upper mold (49) near the horizontal foundation in the vertical direction. The vertical plate (410) is fixedly installed on the surface of the slide table (45) near the horizontal foundation. One end of the memory spring (411) is fixedly connected to the vertical plate (410), and the other end is connected to the telescopic rod (412). 412) Fixed end fixed connection, the fixed end of the telescopic rod (412) is slidably connected to the slide table (45), the telescopic end of the telescopic rod (412) is fixedly connected to the segmented cylinder (414), the driving coil (413) is fixedly installed on the outer surface of the segmented cylinder (414), the driving coil (413) is electrically connected to the memory spring (411), the segmented cylinder (414) is slidably connected to the upper mold (49) through the connecting rod, there are two push blocks (415), which are symmetrically installed on the surface of the upper mold (49) near the horizontal foundation with respect to the central axis of the upper mold (49), and the driving coil (413) is electrically connected to the demolding unit (5).

5. The inductive magnetic blank composite die-casting molding equipment according to claim 1, characterized in that: The inner surface of the first chamber (511) is provided with a layer of antimagnetic soft film.

6. The inductive magnetic blank composite die-casting molding equipment according to claim 1, characterized in that: The container (59) and the first chamber (511) are connected by two one-way valves.

7. The inductive magnetic blank composite die-casting molding equipment according to claim 4, characterized in that: The limiting cylinder (52) is provided with a rectangular through groove, and the push block (415) and the rectangular through groove of the limiting cylinder (52) are on the same vertical axis.

8. The inductive magnetic blank composite die-casting molding equipment according to claim 4, characterized in that: The push block (415) is a right trapezoidal structure. The end of the push block (415) near the horizontal foundation is the short side, and the end of the push block (415) near the central axis of the upper mold (49) is the hypotenuse of the right trapezoid.

9. The inductive magnetic blank composite die-casting molding equipment according to claim 1, characterized in that: The control cabinet (2) is equipped with start / stop buttons.

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