Magnetic field pressure forming device

Abstract

The utility model discloses a magnetic field pressure forming device which comprises a rack, and a powder adding assembly used for feeding, a powder conveying assembly used for conveying magnetic powder and a forming assembly are arranged on the rack. The powder adding part is used for inputting magnetic powder, the weighing part is used for quantitatively conveying the magnetic powder, the powder adding part comprises two material distributing pipes and a powder feeding channel, the two material distributing pipes are arranged in a connected mode, the powder feeding channel is used for receiving the magnetic powder of the material distributing pipes, and the weighing part is arranged below the powder feeding channel; the powder feeding assembly comprises a powder injection part used for receiving the magnetic powder in the weighing part, the powder injection part is movably arranged between the weighing part and the forming assembly, and a powder injection structure capable of moving in the powder outlet direction is arranged at the tail end of the powder injection part; and the forming assembly comprises an extrusion cavity for bearing the powder injection structure, and an upper pressing die and a lower pressing die which are opposite up and down and act in the extrusion cavity.

Description

Technical Field

[0001] The utility model relates to the technical field of automation equipment, in particular to a magnetic field pressure forming device. Background Art

[0002] The magnetic field press is a new type of processing equipment that uses the combined action of magnetic field force and mechanical force to realize material forming under non-fixed deformation conditions. Its working principle is to use the coil to generate a magnetic field to pressurize metal or non-metallic materials. During the processing, by applying a strong magnetic field around the material, an isotropic or anisotropic stress field is formed inside the material and pressed, thereby achieving plastic deformation of the material and obtaining high-precision, high-strength molded parts.

[0003] Before the existing magnetic field press performs pressurization and molding, multiple operation steps such as weighing powder and adding powder are required. However, these existing operations are performed separately and require multiple transfers. In addition, the magnetic powder is scattered during the transfer process, which affects the processing efficiency and the quality of the molded parts. Utility Model Content

[0004] In order to solve the technical problems existing in the background technology, the utility model proposes a magnetic field pressure forming device.

[0005] The technical solution adopted by the utility model to solve its technical problems is as follows:

[0006] A magnetic field pressure molding device comprises a frame, on which a powder adding component for feeding materials, a powder feeding component for conveying magnetic powder, and a molding component are arranged;

[0007] A powder adding assembly, a powder adding part for inputting magnetic powder, and a weighing part for quantitatively conveying magnetic powder, wherein the powder adding part comprises two intersecting distribution pipes for receiving a powder delivery channel of magnetic powder of the distribution pipe, and the weighing part is arranged below the powder delivery channel;

[0008] The powder feeding assembly comprises a powder injection part for receiving magnetic powder in the weighing part, the powder injection part is movably arranged between the weighing part and the forming assembly, and a powder injection structure movable with respect to a powder discharge direction is provided at the end of the powder injection part;

[0009] The molding component comprises an extrusion cavity for receiving the powder injection structure, and an upper pressing die and a lower pressing die which are opposite to each other and act in the extrusion cavity.

[0010] Preferably, the powder injection structure includes an injection head for receiving magnetic powder, a dredging cylinder located above the injection head, and a descending cylinder for driving the injection head to descend, and the action end of the dredging cylinder is placed in the injection head. Through the above improvements, the magnetic powder first enters the injection head, and during the powder injection process, the injection head will descend to inject the magnetic powder into the extrusion cavity, and during the injection process of the magnetic powder, the action end of the dredging cylinder will expand and contract in the injection head to avoid the magnetic powder from being blocked in the injection head, thereby ensuring the quality of the magnetic powder injection.

[0011] Preferably, the powder injection part includes a powder injection channel for receiving the magnetic powder of the weighing part, and a first vibrator arranged at the bottom of the powder injection channel, and the end of the powder injection channel constitutes a powder drop opening, and the powder injection structure is arranged on the powder drop opening. Through the above improvement, the first vibrator drives the powder injection channel to vibrate, so that the magnetic powder enters the powder drop opening and enters the injection head of the powder injection structure.

[0012] Preferably, a spraying structure for spraying a demoulding agent is provided on the front side of the powder injection structure. Through the above improvements, the spraying structure will first spray a demoulding agent on the extrusion cavity in the molding die before magnetic powder injection, making it easier to demould after extrusion molding.

[0013] Preferably, the powder injection structure is detachably arranged on the powder injection part. Through the above improvements, the powder injection structure can be removed, which is more convenient for daily cleaning and maintenance, and if the powder injection structure is damaged, powder can still be injected through the powder drop port to avoid affecting production.

[0014] Preferably, a second vibrator is provided at the bottom of the powder feeding channel, and the powder outlet end of the powder feeding channel is located above the weighing part. Through the above improvements, the magnetic powder can fall into the powder feeding channel through the material distribution pipe, and the second vibrator drives the powder feeding channel to move, so that the magnetic powder falls from the powder outlet end of the powder feeding channel to the weighing part for weighing.

[0015] Preferably, a first sieve plate movable up and down is provided in the middle of the powder feeding channel, a first sieve slot is formed on the first sieve plate, and a second sieve plate movable up and down is provided at the powder outlet end of the powder feeding channel, a second sieve slot is formed on the second sieve plate. Through the above improvements, when the magnetic powder enters the powder feeding channel, during the transportation process of the magnetic powder, it will first pass through the first sieve slot of the first sieve plate, and then pass through the second sieve slot of the second sieve plate, thereby ensuring the fineness of the magnetic powder falling into the weighing part.

[0016] Preferably, the weighing part includes a weighing unit for measuring the weight of magnetic powder, and a weighing hopper mounted on the weighing unit, the weighing hopper rotates and transfers a fixed amount of magnetic powder to the powder feeding assembly. Through the above improvements, the magnetic powder will fall into the weighing hopper from the powder feeding channel, and when the magnetic powder in the weighing unit reaches a specified weight, the weighing unit will send a signal to flip the weighing hopper and transfer the magnetic powder to the powder feeding assembly, thereby ensuring the accuracy of the magnetic powder weight and improving the molding quality.

[0017] Preferably, the weighing part also includes a lifting cylinder that drives the weighing hopper to flip, and an elastic element is provided on the weighing hopper, one end of the elastic element abuts against the weighing hopper, and the other end abuts against the weighing unit, so that the weighing hopper has a tendency to move away from the feeding direction. Through the above improvements, when the magnetic powder in the weighing unit reaches a specified weight, the weighing unit will send a signal, the lifting cylinder drives the weighing hopper to flip and transfer the magnetic powder, and after the delivery of the magnetic powder is completed, the elastic element will drive the weighing hopper to compound to carry out the next weighing of the magnetic powder.

[0018] Preferably, the molding die includes a shell, and a coil disposed inside the shell, and the extrusion cavity is formed between the coils. Through the above improvements, the coil and the die are integrated, the molding occurs in the middle of the coil, the die can be replaced at any time, and the coil can also be replaced at any time. An extrusion cavity for inserting magnetic powder is formed in the molding die, and the coil generates a magnetic field parallel to the pressing direction, so that the magnetic powder is arranged, and then the upper die and the lower die are respectively inserted into the extrusion cavity from the top and bottom to extrude and mold the magnetic powder, and it has a smaller volume than the traditional molding die.

[0019] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0020] The magnetic powder is added through the powder adding part of the powder adding component, and then the magnetic powder is weighed by the weighing part, so that a certain amount of magnetic powder falls onto the powder feeding component, and the weighed magnetic powder is transported and poured into the molding component by the powder feeding component, and the magnetic powder is extruded and molded, so that multiple steps of powdering, weighing, powder feeding, powder filling and extrusion molding are integrated into one device, which reduces the transportation of materials and avoids the falling of magnetic powder during transportation, which can not only improve the processing efficiency but also improve the processing quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 It is a schematic diagram of the structure of the powder adding component and the powder feeding component of the utility model;

[0023] Figure 3 It is a structural schematic diagram of the molding component of the utility model;

[0024] Figure 4 It is a structural schematic diagram of the powder adding part of the utility model;

[0025] Figure 5 This is a schematic structural diagram of the first screen plate of the utility model;

[0026] Figure 6 It is a structural schematic diagram of the second screen plate of the utility model;

[0027] Figure 7 It is a structural schematic diagram of the weighing part of the utility model;

[0028] Figure 8 It is a structural schematic diagram of the powder feeding component of the utility model;

[0029] Fig. 9 It is a structural schematic diagram of the powder injection part of the utility model;

[0030] Fig.10 It is a structural schematic diagram of the powder injection channel of the utility model;

[0031] Fig.11 It is a cross-sectional view of the molding die of the utility model;

[0032] In the figure: 1, frame; 2, powder adding assembly; 3, powder feeding assembly; 4, molding assembly; 101, powder adding part; 102, weighing part; 103, material distribution pipe; 104, powder feeding channel; 105, second vibrator; 106, first screen plate; 107, first screen trough; 108, second screen plate; 109, second screen trough; 110, weighing unit; 111, weighing hopper; 112, lifting cylinder; 113, lifting rod; 114, elastic element; 201, powder injection part; 202, moving part; 203, first vibrator; 204, powder injection channel; 205, powder injection structure; 206, powder drop port; 207, injection head; 208, dredging cylinder; 209, descending cylinder; 210, mounting frame; 211, spraying structure; 301, forming mold; 302, upper die; 303, lower die; 304, extrusion cavity; 305, shell; 306, coil; 307, outer jacket; 308, upper end cover; 309, lower end cover; 310, cooling jacket; 311, cooling cavity; 312, water inlet pipe; 313, water outlet pipe; DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] It should be understood that although the terms upper, middle, lower, top, end, etc. appear in this article to describe various elements, these elements are not limited by these terms. These terms are only used to distinguish elements from each other for easy understanding, and are not used to define any direction or order limitation.

[0035] like Figures 1 to 11 As shown, a magnetic field pressure molding device includes a frame 1, on which a powder adding component 2 for feeding, a powder feeding component 3 for conveying magnetic powder, and a molding component 4 are arranged.

[0036] Specifically, the powder adding component 2 includes a powder adding part 101 for inputting magnetic powder, and a weighing part 102 for quantitatively conveying magnetic powder. The powder adding part 101 includes two intersecting distribution pipes 103, a powder delivery channel 104 for receiving the magnetic powder of the distribution pipe 103, and the weighing part 102 is arranged below the powder delivery channel 104. The weighing part 102 transfers the quantitative magnetic powder to the powder delivery component 3.

[0037] Furthermore, the powder feeding assembly 3 includes a powder injection portion 201 for receiving the magnetic powder in the weighing portion 102. The powder injection portion 201 is movably arranged between the weighing portion 102 and the molding assembly 4, and a powder injection structure 205 movable relative to the powder discharge direction is provided at the end of the powder injection portion 201.

[0038] The molding assembly 4 includes a molding die 301, an upper die 302 arranged above the molding die 301, and a lower die 303 arranged below the molding die 301. An extrusion cavity 304 for inserting magnetic powder is formed in the molding die 301. The upper die 302 and the lower die 303 are inserted into the extrusion cavity 304 from above and below respectively to extrude and mold the magnetic powder.

[0039] Magnetic powder is added through the powder adding part 101 of the powder adding component 2, and then the magnetic powder is weighed by the weighing part 102, so that a certain amount of magnetic powder falls onto the powder feeding component 3, and the weighed magnetic powder is transported and poured into the molding component 4 by the powder feeding component 3, and the magnetic powder is extruded and molded, so that multiple steps of powdering, weighing, powder feeding, powder filling and extrusion molding are integrated into one device, which reduces the transportation of materials and avoids the falling of magnetic powder during transportation, which can not only improve the processing efficiency but also improve the processing quality.

[0040] like Figures 1 to 7As shown, a further explanation of the implementation method of the powder adding component 2 in this embodiment, wherein the powder adding part 101 includes two intersecting distribution pipes 103, a powder feeding channel 104 for receiving and conveying magnetic powder, and the two powder feeding channels 104 can convey magnetic powder at the same time.

[0041] In addition, a second vibrator 105 is provided at the bottom of the powder feeding channel 104 , and the powder outlet end of the powder feeding channel 104 is located above the weighing part 102 . The second vibrator 105 drives the powder feeding channel 104 to vibrate so that the magnetic powder in the powder feeding channel 104 is transferred to the weighing part 102 .

[0042] Among them, the distribution pipe 103 can be connected to the material bin, and the magnetic powder can fall into the powder feeding channel 104 through the distribution pipe 103, and the second vibrator 105 drives the powder feeding channel 104 to move, so that the magnetic powder falls from the powder outlet end of the powder feeding channel 104 to the weighing part 102 for weighing.

[0043] Furthermore, a first sieve plate 106 movable up and down is provided in the middle of the powder delivery channel 104, a first sieve trough 107 is formed on the first sieve plate 106, and a second sieve plate 108 movable up and down is provided at the powder outlet end of the powder delivery channel 104, a second sieve trough 109 is formed on the second sieve plate 108.

[0044] When the magnetic powder enters the powder feeding channel 104 , during the transportation process of the magnetic powder, it will first pass through the first sieve slot 107 of the first sieve plate 106 , and then pass through the second sieve slot 109 of the second sieve plate 108 , thereby ensuring the fineness of the magnetic powder falling into the weighing part 102 .

[0045] Preferably, the notch of the second screening trough 109 is smaller than the notch of the first screening trough 107 , so as to ensure the fineness of the magnetic powder and improve the molding quality.

[0046] Specifically, the weighing part 102 includes a weighing unit 110 for measuring the weight of magnetic powder, and a weighing hopper 111 rotated on the weighing unit 110, and the weighing hopper 111 is located below the powder adding part 101. When the magnetic powder falls into the weighing hopper 111 from the powder feeding channel 104, and when the magnetic powder in the weighing unit 110 reaches a specified weight, the weighing unit 110 will send a signal to flip the weighing hopper 111 and transfer the magnetic powder to the powder feeding component 3, thereby ensuring the accuracy of the magnetic powder weight and improving the molding quality.

[0047] Among them, a lifting cylinder 112 is arranged on the side of the weighing unit 110, and a lifting rod 113 is arranged on the action end of the lifting cylinder 112. The lifting rod 113 is located below the weighing hopper 111. An elastic element 114 is arranged on the weighing hopper 111. One end of the elastic element 114 abuts against the weighing hopper 111, and the other end abuts against the weighing unit 110. When the magnetic powder in the weighing unit 110 reaches the specified weight, the weighing unit 110 will send a signal, and the lifting cylinder 112 will drive the lifting rod 113 to rise, so that the weighing hopper 111 will flip over and transfer the magnetic powder. After completing the transportation of the magnetic powder, the elastic element 114 will drive the weighing hopper 111 to compound so as to carry out the next weighing of the magnetic powder.

[0048] like Figure 1 , Figure 2 , Figure 8 , Fig. 9 , Fig.10 As shown, as a further explanation of the implementation method of the powder delivery component 3 in this embodiment, the powder delivery component 3 also includes a moving part 202 that drives the powder adding part 101 to move, and the powder injection part 201 includes a first vibrator 203 arranged on the moving part 202, a powder injection channel 204 arranged on the first vibrator 203, and a powder injection structure 205 arranged at the powder outlet end of the powder injection channel 204.

[0049] Among them, a powder outlet 206 is formed at the powder outlet end of the powder injection channel 204, and the powder injection structure 205 includes an injection head 207 located below the powder outlet 206 for receiving magnetic powder, a clearing cylinder 208 located above the injection head 207, and a descending cylinder 209 for driving the injection head 207 to descend, and the action end of the clearing cylinder 208 is placed in the injection head 207.

[0050] Specifically, the magnetic powder falls into the powder injection channel 204 after being weighed by the weighing part 102. As the first vibrator 203 drives the powder injection channel 204 to vibrate, the magnetic powder in the powder injection channel 204 moves the powder drop port 206 of the powder injection channel 204, so that the magnetic powder first enters the injection head 207. During the powder injection process, the injection head 207 will descend to inject the magnetic powder into the extrusion cavity 304. During the magnetic powder injection process, the action end of the cylinder 208 will expand and contract in the injection head 207 to avoid the magnetic powder from being blocked in the injection head 207, thereby ensuring the quality of the magnetic powder injection.

[0051] In addition, a mounting frame 210 is also provided on the movable part 202, and a spraying structure 211 for spraying a demoulding agent is provided on the mounting frame 210, and the spraying structure 211 is located in front of the powder injection structure 205. Before the magnetic powder is injected, the spraying structure 211 will first spray the demoulding agent on the extrusion cavity 304 in the molding mold 301, so as to facilitate demoulding after extrusion molding.

[0052] Preferably, the powder injection structure 205 is detachably arranged on the powder drop port 206. The powder injection structure 205 can be removed to facilitate daily cleaning and maintenance. If the powder injection structure 205 is damaged, powder can still be injected through the powder drop port 206 to avoid affecting production.

[0053] like Figure 1 , Figure 3 , Fig.11 As shown, as a further explanation of the implementation method of the forming component 4 in this embodiment, the forming mold 301 includes a shell 305, and a coil 306 arranged inside the shell 305, the coil 306 includes a plurality of metal wires arranged horizontally and evenly spaced, the inner side surface and the outer side surface of the metal wire are respectively located on the same circumferential surface, wherein the metal wires are copper wires, and the number is 2n, the outer side surface of the head end of the first copper wire is integrally connected with the outer side surface of the head end of the second copper wire, the outer side surface of the tail end of the second copper wire is integrally connected with the outer side surface of the tail end of the third copper wire, the outer side surface of the head end of the third copper wire is integrally connected with the outer side surface of the tail end of the fourth copper wire, and the outer side surface of the head end of the fourth copper wire is integrally connected with the outer side surface of the tail end of the third copper wire. The outer side surfaces of the first ends of the copper wires are integrally connected, and so on, the outer side surfaces of the first ends of the 2n-1 copper wires and the outer side surfaces of the first ends of the 2n copper wires are integrally connected, the tail ends of the 1st copper wire and the tail ends of the 2n copper wires are respectively used as the input end and the output end of the coil 306, and the intervals between every three adjacent copper wires form a group of radial magnetic poles. The coil 306 is integrally formed by a copper plate with a thickness not exceeding 10m through slow wire cutting, wherein n is a positive integer and is greater than or equal to 2, and the multi-stage coil 306 is evenly graded, which improves the uniformity of the surface magnetism of the coil 306, and has high efficiency and low labor costs.

[0054] Furthermore, the shell 305 includes an outer sleeve 307 and an upper end cover 308 and a lower end cover 309 arranged on both sides of the outer sleeve 307. A cooling sleeve 310 is provided on the outer side of the coil 306. A cooling chamber 311 is formed between the cooling sleeve 310 and the outer sleeve 307. The outer sleeve 307 is provided with a water inlet pipe 312 and a water outlet pipe 313 connected to the cooling chamber. During the use of the radial multi-stage magnetizing coil 306, the coil 306 can be cooled by filling cold water into the cooling chamber 311 to prevent the working temperature of the coil 306 from being too high and to increase the service life of the coil 306.

[0055] Preferably, when the gap between the coil 306 and the cooling sleeve 310 and the gap inside the coil 306 are filled with epoxy resin glue, the coil 306 will not be damaged due to the vibration of the copper wire when operating under high current, thereby enhancing the insulation strength, increasing the magnetizing voltage, and extending the service life of the coil 306.

[0056] Preferably, the upper die 302 and the lower die 303 can be oil cylinders or electric cylinders.

[0057] In this embodiment, two groups of powder adding components 2, powder feeding components 3, and molding components 4 are arrayed on the frame 1, and the two groups of the above components operate synchronously. The two groups of powder adding components 2, powder feeding components 3, and molding components 4 work synchronously, thereby greatly improving the molding efficiency.

[0058] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A magnetic field pressure forming device, comprising a frame (1), characterized in that: The frame (1) is provided with a powder adding component (2) for feeding materials, a powder feeding component (3) for conveying magnetic powder, and a molding component (4); A powder adding assembly (2), a powder adding section (101) for inputting magnetic powder, and a weighing section (102) for quantitatively conveying magnetic powder, the powder adding section (101) comprising two intersecting distribution pipes (103), a powder delivery channel (104) for receiving magnetic powder from the distribution pipes (103), and the weighing section (102) being arranged below the powder delivery channel (104); A powder feeding assembly (3) comprises a powder injection portion (201) for receiving magnetic powder in the weighing portion (102), the powder injection portion (201) being movably arranged between the weighing portion (102) and the molding assembly (4), and a powder injection structure (205) movable in a powder discharge direction is provided at the end of the powder injection portion (201); The molding assembly (4) comprises an extrusion cavity (304) receiving the powder injection structure (205), and an upper pressing die (302) and a lower pressing die (303) acting in the extrusion cavity (304) in an upper and lower relative manner.

2. A magnetic field pressure forming device according to claim 1, characterized in that: The powder injection structure (205) comprises an injection head (207) for receiving magnetic powder, a dredging cylinder (208) located above the injection head (207), and a descending cylinder (209) for driving the injection head (207) to descend, and an actuating end of the dredging cylinder (208) is placed in the injection head (207).

3. A magnetic field pressure forming device according to claim 1, characterized in that: The powder injection section (201) comprises a powder injection channel (204) for receiving magnetic powder from the weighing section (102), and a first vibrator (203) arranged at the bottom of the powder injection channel (204), and the end of the powder injection channel (204) forms a powder drop opening (206), and the powder injection structure (205) is arranged on the powder drop opening (206).

4. A magnetic field pressure forming device according to claim 1, characterized in that: The front side of the powder injection structure (205) is provided with a spraying structure (211) for spraying a mold release agent.

5. The magnetic field pressure forming device according to claim 1, characterized in that: The powder injection structure (205) is detachably arranged on the powder injection portion (201).

6. The magnetic field pressure forming device according to claim 1, characterized in that: A second vibrator (105) is provided at the bottom of the powder delivery channel (104), and a powder outlet end of the powder delivery channel (104) is located above the weighing part (102).

7. A magnetic field pressure forming device according to claim 6, characterized in that: A first sieve plate (106) movable up and down is provided in the middle of the powder delivery channel (104), a first sieve trough (107) is formed on the first sieve plate (106), and a second sieve plate (108) movable up and down is provided at the powder outlet end of the powder delivery channel (104), a second sieve trough (109) is formed on the second sieve plate (108).

8. The magnetic field pressure forming device according to claim 1, characterized in that: The weighing part (102) comprises a weighing unit (110) for measuring the weight of magnetic powder, and a weighing hopper (111) mounted on the weighing unit (110); the weighing hopper (111) rotates and transfers a fixed amount of magnetic powder to the powder feeding assembly (3).

9. The magnetic field pressure forming device according to claim 8, characterized in that: The weighing part (102) further comprises a lifting cylinder for driving the weighing hopper (111) to flip, and an elastic element (114) is provided on the weighing hopper (111), one end of the elastic element (114) abuts against the weighing hopper (111), and the other end abuts against the weighing unit (110), so that the weighing hopper (111) has a tendency to move away from the feeding direction.

10. The magnetic field pressure forming device according to claim 1, characterized in that: The molding assembly (4) comprises a molding die (301), the molding die (301) comprises a shell (305), and a coil (306) arranged inside the shell (305), and the extrusion cavity (304) is formed between the coils (306).

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