Anti-return device for wet-pressing magnetic shoe forming die

Abstract

The utility model relates to a wet pressing magnetic shoe forming die material return prevention device which comprises a material injection frame, the bottom of the material injection frame is fixedly connected with a top die plate, the bottom of the top die plate is provided with a plurality of die punches, a plurality of spherical material blocking blocks are arranged in the material injection frame, the top die plate is provided with a plurality of through grooves matched with the spherical material blocking blocks, and the through grooves are communicated with the die punches. The top end of each through groove communicates with the interior of the material injection frame, the bottom end of each through groove communicates with one of the die punches, a moving assembly is arranged at the top of the material injection frame and used for driving the multiple spherical material blocking blocks to synchronously get close to or get away from the through grooves, and when the spherical material blocking blocks are moved into the through grooves, the die punches move to the through grooves. And the spherical material blocking block is used for blocking the through groove. According to the utility model, part of injection materials can be prevented from flowing back to the inside of the injection frame through the through groove to influence the cooling molding effect when the injection materials in the die punch and the bottom template are cooled and molded.

Description

Technical Field

[0001] The utility model relates to the technical field of magnetic tile molds, in particular to a material return prevention device for a wet-pressed magnetic tile forming mold. Background Art

[0002] Wet-pressed magnetic tiles are high-performance magnetic materials with high magnetic permeability and magnetization strength, widely used in motors, generators, transformers, and other electromagnetic equipment. During their production, wet-pressed magnetic tiles are formed using molds. Most existing wet-pressed magnetic tile production molds cool down after injection.

[0003] However, since the mold cavity and the flow cavity for injecting slurry into the mold cavity are in a certain state of communication with each other, when the injected material in the mold cavity is cooled and formed, part of the slurry is likely to flow back from the mold cavity into the flow cavity, making the temperature of the injected material in the mold cavity easily affected by the flow cavity, thereby affecting the cooling and forming efficiency of the wet-pressed magnetic tile. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the utility model provides a device for preventing material return of wet pressed magnetic tile forming molds. The specific technical solution is as follows:

[0005] The anti-backflow device of the wet-pressed magnetic tile forming mold includes an injection frame, the bottom of the injection frame is fixedly connected to the top template, the bottom of the top template has multiple die punches, and the interior of the injection frame is provided with multiple spherical blocking blocks. The top template is provided with several through grooves adapted to the spherical blocking blocks, the top of each through groove is connected to the interior of the injection frame, and the bottom end of the through groove is connected to one of the die punches. A moving component is provided on the top of the injection frame, and the moving component is used to drive multiple spherical blocking blocks to approach or move away from the through groove synchronously. When the spherical blocking block is moved into the through groove, the spherical blocking block blocks the through groove.

[0006] As an improvement to the above technical solution: the top of the top template is provided with an annular blocking block on one side close to the through groove. When the spherical blocking block is inserted into the through groove, a blocking groove is formed between the spherical blocking block and the annular blocking block. The surface of the spherical blocking block has a blocking block that is adapted to the blocking groove. When the spherical blocking block is inserted into the through groove, the blocking groove is sealed by the blocking block.

[0007] As an improvement of the above technical solution: a bottom template is provided below the top template, and the top of the bottom template has a plurality of mold cavities, and the mold cavities are adapted to the die punch.

[0008] As an improvement to the above technical solution: a top plate is installed on the top of the injection frame, and an injection port is opened on the top plate.

[0009] As an improvement of the above technical solution: the moving component includes a hydraulic cylinder and a lifting plate, the hydraulic cylinder is located at the top of the lifting plate, the bottom output rod of the hydraulic cylinder is fixedly connected to the lifting plate, the bottom of the lifting plate has several lifting rods, and the top plate is provided with several limiting holes adapted to the lifting rods, and the bottom end of the lifting rod passes through the limiting hole and is connected to the top of the spherical blocking block.

[0010] Beneficial effects of the utility model:

[0011] After the wet-pressed magnetic tile is formed and injected, the spherical blocking block is moved downward by the moving component to complete the insertion of the spherical blocking block into the through groove, so that the spherical blocking block is tightly fitted with the through groove of the spherical cross-section, avoiding a large number of gaps between the spherical blocking block and the through groove and allowing the injection material to penetrate into the interior of the injection frame through the gaps. The spherical blocking block can prevent the injection material in the die punch and the bottom template from flowing back from the through groove into the interior of the injection frame during the forming process, and then the cooperation of the blocking block and the annular blocking block prevents the injection material inside the injection frame from entering the die punch and the bottom template through the through groove, so that the injection materials on both sides of the top template are isolated from each other, avoiding that part of the injection material will flow back into the interior of the injection frame through the through groove when the injection material in the die punch and the bottom template is cooled and formed, thereby affecting the cooling and forming effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0013] Figure 2 This is a schematic structural diagram of the injection frame in the present invention;

[0014] Figure 3 It is a schematic diagram of the connection structure between the top template and the spherical blocking block in the utility model.

[0015] Figure numerals: 1. injection frame; 2. top plate; 20. limiting hole; 21. injection port; 3. hydraulic cylinder; 4. lifting plate; 41. lifting rod; 5. top template; 50. through groove; 6. die punch; 7. bottom template; 8. die cavity; 9. spherical blocking block; 10. annular blocking block; 100. blocking groove; 11. blocking block. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0017] Example

[0018] Please refer to Figure 1-Figure 3The anti-backflow device of the wet-pressed magnetic tile forming mold includes an injection frame 1, the bottom of the injection frame 1 is fixedly connected to a top template 5, the bottom of the top template 5 has multiple die punches 6, and a plurality of spherical blocking blocks 9 are arranged inside the injection frame 1. A plurality of through grooves 50 are opened on the top template 5 and adapted to the spherical blocking blocks 9. The inner side of the through groove 50 is a spherical cross-section. The top of each through groove 50 is connected to the interior of the injection frame 1, and the bottom end of the through groove 50 is connected to one of the die punches 6. A moving component is provided on the top of the injection frame 1, and the moving component is used to drive multiple spherical blocking blocks 9 to move synchronously toward or away from the through groove 50. When the spherical blocking block 9 is moved into the through groove 50, the spherical blocking block 9 blocks the through groove 50.

[0019] In an optional embodiment: an annular blocking block 10 is provided on one side of the top of the top template 5 close to the through groove 50. When the spherical blocking block 9 is inserted into the through groove 50, a blocking groove 100 is formed between the spherical blocking block 9 and the annular blocking block 10. The surface of the spherical blocking block 9 has a blocking block 11 that is adapted to the blocking groove 100. When the spherical blocking block 9 is inserted into the through groove 50, the blocking groove 100 is blocked by the blocking block 11. The cooperation of the annular blocking block 10 and the blocking block 11 can further isolate the two sides of the top template 5.

[0020] In an optional embodiment: a bottom template 7 is provided below the top template 5, and the bottom template 7 and the top template 5 are moved toward or away from each other by the hydraulic part of the prior art. The top of the bottom template 7 has a plurality of mold cavities 8, and the mold cavities 8 are adapted to the die punches 6, that is, each mold cavity 8 corresponds coaxially to a die punch 6. When the top template 5 approaches toward each other and enters the mold cavity 8, the wet-pressed magnetic tile is formed by injecting material into the top template 5 and then cooperating with the mold cavity 8.

[0021] In an optional embodiment, a top plate 2 is installed on the top of the injection frame 1 , and a material injection port 21 is opened on the top plate 2 , so that the material injected into the injection frame 1 can be prevented from splashing out.

[0022] In an optional embodiment: the moving component includes a hydraulic cylinder 3 and a lifting plate 4, the hydraulic cylinder 3 is located at the top of the lifting plate 4, the hydraulic cylinder 3 is installed on the top plate 2 through a bracket, the bottom output rod of the hydraulic cylinder 3 is fixedly connected to the lifting plate 4, the bottom of the lifting plate 4 has a plurality of lifting rods 41, and the top plate 2 is provided with a plurality of limiting holes 20 adapted to the lifting rods 41, and the bottom end of the lifting rod 41 passes through the limiting hole 20 and is connected to the top of the spherical blocking block 9.

[0023] Specifically, in the wet-pressed magnetic tile forming, first, the spherical blocking block 9 is controlled by the moving component to move and insert into the through groove 50, and then the injection liquid is passed into the injection frame 1 through the injection port 21, and then the top template 5 is moved close to the bottom template 7 so that it is closely matched with the bottom template 7, and then the spherical blocking block 9 is slowly driven upward by the moving component to allow the through groove 50 to have a certain fluidity, so that the injection material of the injection frame 1 enters the die punch 6 and the bottom template 7 through the through groove 50. After filling, the spherical blocking block 9 is moved downward again by the moving component to complete the insertion of the spherical blocking block 9 into the through groove 50, so that the spherical blocking block 9 is tightly fitted with the through groove 50 of the spherical cross-section, avoiding the spherical blocking block 9 and the through groove 50 being in a state of being in a state of being in a state of being in a state of being in a state of being in a state of being in a state of being in a state of being in a state of being in a state of being in a state of being in a state of being in a state of being in a state of being in a state of being in a state of being A large number of gaps allow the injection material to penetrate into the interior of the injection frame 1 through the gaps, which has a better sealing effect than the prior art which only seals one end of the convection flow. The spherical blocking block 9 can prevent the injection material in the die punch 6 and the bottom template 7 from flowing back from the through groove 50 into the interior of the injection frame 1 during the molding process, and the blocking block 11 and the annular blocking block 10 cooperate to prevent the injection material inside the injection frame 1 from entering the die punch 6 and the bottom template 7 through the through groove 50, so that the injection materials on both sides of the top template 5 are isolated from each other, and it is avoided that part of the injection material in the die punch 6 and the bottom template 7 will flow back into the interior of the injection frame 1 through the through groove 50 when the injection material is cooled and molded, so as to avoid the transfer of its temperature and affect the cooling and molding effect.

[0024] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. Anti-return device for wet pressing magnetic tile forming mold, characterized in that: The invention comprises an injection frame (1), wherein the bottom of the injection frame (1) is fixedly connected to a top template (5), the bottom of the top template (5) is provided with a plurality of die punches (6), a plurality of spherical blocking blocks (9) are arranged inside the injection frame (1), a plurality of through slots (50) adapted to the spherical blocking blocks (9) are opened on the top template (5), the top end of each through slot (50) is connected to the inside of the injection frame (1), and the bottom end of the through slot (50) is connected to one of the die punches (6), and a moving component is arranged on the top of the injection frame (1), and the moving component is used to drive the plurality of spherical blocking blocks (9) to move synchronously toward or away from the through slot (50), and when the spherical blocking block (9) is moved into the through slot (50), the spherical blocking block (9) blocks the through slot (50).

2. The anti-material-backflow device for wet-pressed magnetic tile forming mold according to claim 1, characterized in that: The top of the top template (5) is provided with an annular blocking block (10) on one side close to the through groove (50); when the spherical blocking block (9) is inserted into the through groove (50), a blocking groove (100) is formed between the spherical blocking block (9) and the annular blocking block (10); the surface of the spherical blocking block (9) is provided with a blocking block (11) adapted to the blocking groove (100); when the spherical blocking block (9) is inserted into the through groove (50), the blocking groove (100) is blocked by the blocking block (11).

3. The anti-backflow device for wet-pressed magnetic tile forming mold according to claim 2, characterized in that: A bottom template (7) is provided below the top template (5), and a top of the bottom template (7) is provided with a plurality of mold cavities (8), and the mold cavities (8) are adapted to the die punch (6).

4. The anti-backflow device for wet-pressed magnetic tile forming mold according to claim 3, characterized in that: A top plate (2) is installed on the top of the injection frame (1), and a material injection port (21) is provided on the top plate (2).

5. The anti-backflow device for wet-pressed magnetic tile forming mold according to claim 4, characterized in that: The moving assembly comprises a hydraulic cylinder (3) and a lifting plate (4); the hydraulic cylinder (3) is located at the top of the lifting plate (4); the bottom output rod of the hydraulic cylinder (3) is fixedly connected to the lifting plate (4); the bottom of the lifting plate (4) is provided with a plurality of lifting rods (41); the top plate (2) is provided with a plurality of limiting holes (20) adapted to the lifting rods (41); the bottom ends of the lifting rods (41) pass through the limiting holes (20) and are connected to the top end of the spherical blocking block (9).

Images