Milling cutter MIM die for woodworking

Abstract

The utility model relates to the technical field of MIM dies, and provides a woodworking milling cutter MIM die which comprises a base and a mounting structure. Hydraulic push rods are mounted at the edge positions of the top end of the base, a top plate is mounted at the top ends of the hydraulic push rods, a mounting structure is mounted between the base and the top plate, the mounting structure comprises a mounting groove formed in the top plate, and a first template is mounted at the top end of the top plate; a first template is arranged at the top end of the base, a mounting groove is formed in the top end of the first template, an upper mold is fixed at the bottom end of the first template in the mounting groove, a second template is arranged at the top end of the base, and a lower mold is fixed at the top end of the second template. And the upper mold is mounted in the mounting groove to be preliminarily positioned, and then the insertion rods penetrate through the interiors of the first through holes and the second through holes to position the upper mold and the lower mold again, so that the positioning precision of the upper mold and the lower mold is further improved.

Description

Technical Field

[0001] This utility model relates to the field of MIM mold technology, and in particular to a woodworking milling cutter MIM mold. Background Technology

[0002] MIM molds are specialized molds used in metal injection molding (MIM) processes. They are widely used to manufacture small, precision, and complex-shaped metal parts, such as those for medical devices, electronic products, and automotive components. A woodworking milling cutter MIM mold is a mold that incorporates metal injection molding (MIM) technology and is specifically designed for producing woodworking milling cutters. MIM technology is a process that involves mixing metal powder with a binder and then injection molding it, making it suitable for manufacturing complex-shaped and high-precision metal parts.

[0003] To address this, patent CN214263897U discloses a MIM injection mold, comprising an upper mold base and a lower mold base. An injection tube is connected through the top of the upper mold base, and first templates are fixedly connected to both outer walls of the upper mold base. Fixing blocks are fixedly connected to the top of both outer walls of the upper mold base. Connecting blocks are fixedly connected to the bottom of both outer walls of the lower mold base, and a first push rod motor is fixedly installed on the top of each of the two connecting blocks. Second templates are fixedly connected to both outer walls of the lower mold base, and a demolding assembly, including a base plate, is fixedly installed at the bottom of the lower mold base. This invention, by connecting the injection tube to the interior of the upper mold base, facilitates injection into the mold's interior when the upper and lower mold bases are closed by the first push rod motor. After injection molding, the demolding assembly can eject the workpiece from the lower mold base, achieving rapid demolding and improving mold production efficiency.

[0004] The MIM injection molds described above are not easy to disassemble during use, which reduces the overall flexibility of the mold, increases the difficulty of mold maintenance and upkeep, and reduces its practicality. Utility Model Content

[0005] The purpose of this invention is to provide a woodworking milling cutter MIM mold to solve the problem that existing MIM molds are not easy to disassemble.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a woodworking milling cutter MIM mold, including a base and a mounting structure;

[0007] Hydraulic push rods are installed at the edge of the top of the base. A top plate is installed at the top of the hydraulic push rod. An installation structure is installed between the base and the top plate. The installation structure includes an installation groove inside the top plate. A first template is installed at the top of the top plate. An upper mold is fixed at the bottom of the first template inside the installation groove. A second template is installed at the top of the base. A lower mold is fixed at the top of the second template. A first through hole is provided on both sides inside the first template. A second through hole is provided on both sides inside the second template. An insert rod is installed inside the first and second through holes. External threads are provided on the outer sides of both ends of the insert rod. A limit block is installed at the top of the insert rod. A threaded groove is provided inside the base at the bottom of the insert rod. A spring is installed on the outer side of the insert rod at the bottom of the top plate.

[0008] The base is equipped with a cooling structure inside.

[0009] Preferably, the first through holes are symmetrically distributed inside the first template, and the second through holes are symmetrically distributed inside the second template, with the first through holes and the second through holes corresponding one-to-one.

[0010] With the above structure, the insert rods can be inserted into the first and second through holes respectively to accurately position the upper and lower molds during use. At the same time, the upper and lower molds can be easily disassembled, improving the practicality during use.

[0011] Preferably, the insertion rod and the limiting block are connected by external threads, the insertion rod and the threaded groove are connected by external threads, and the top plate and the insertion rod are connected by a spring to form a telescopic structure.

[0012] With the above structure, the spring is squeezed during the closing process of the upper and lower molds, thereby reducing the impact force between the upper and lower molds and preventing damage to the molds.

[0013] Preferably, the cooling structure includes an injection tube fixed to the top of the first template, a flow channel inside the upper mold, heating plates fixed inside the upper mold on both sides of the flow channel, a liquid inlet fixed at the bottom of the flow channel, molding cavities inside the upper and lower molds, a cooling cavity inside the base, a water inlet pipe fixed on one side of the base, a cooler installed inside the cooling cavity, a water pump installed inside the cooling cavity on one side of the cooler, a water delivery pipe fixed at the output end of the water pump, a serpentine cavity outside the molding cavity inside the lower mold, a connecting pipe fixed on one side of the bottom of the serpentine cavity, a return pipe fixed on the other side of the bottom of the serpentine cavity, a connecting hole fixed on one side of the top of the cooling cavity, and sealing rings fixed inside one end of the water delivery pipe and the connecting hole.

[0014] Preferably, the top end of the flow channel is fixedly connected to the bottom end of the injection tube, the liquid inlets are evenly distributed at the bottom end of the flow channel, the liquid inlets correspond one-to-one with the molding cavity, and the heating plates are symmetrically distributed at the top end of the flow channel.

[0015] With the above structure, a heating plate is set up during use, which can melt the solidified heat flow inside the flow channel when used again, thus avoiding blockage caused by the solidification of the heat flow inside the flow channel.

[0016] Preferably, one end of the water inlet pipe extends through one side of the base into the interior of the cooling chamber, and the top end of the water delivery pipe extends through the interior of the base into the top end of the base. The water delivery pipe and the connecting hole are symmetrically distributed inside the top end of the base.

[0017] With the above structure, during use, cooling water is introduced into the connecting pipe through the water supply pipe and flows into the serpentine cavity to cool the lower mold and the molding cavity, thereby accelerating the molding rate. After being heated, the cooling water flows back into the connecting hole through the return pipe for recirculation, and then circulates again after being cooled by the refrigerator, thus realizing the recycling of cooling water.

[0018] Preferably, the connecting pipe and the water supply pipe are sealed together by a sealing ring, and the return pipe and the connecting hole are sealed together by a sealing ring.

[0019] With the above structure, during use, the connecting pipe and return pipe are inserted into the water supply pipe and connecting hole and a sealing connection is formed by the sealing ring, which facilitates the initial positioning of the lower mold and the disassembly of the lower mold.

[0020] The advantages of the MIM mold for woodworking milling cutters provided by this utility model are as follows:

[0021] By incorporating an installation structure, the lower mold is initially positioned by inserting the connecting pipe and return pipe into the water supply pipe and connecting hole. The upper mold is then initially positioned by installing it inside the installation groove. Subsequently, the insert rods are passed through the first and second through holes to reposition the upper and lower molds, thereby further improving the positioning accuracy of the upper and lower molds. This allows for rapid installation of the upper and lower molds and precise positioning. Furthermore, the spring compression mechanism reduces the impact force between the upper and lower molds, preventing mold damage.

[0022] By incorporating a cooling structure and a heating plate, the heat flow inside the flow channel is kept molten, preventing solidification and blockage. Cooling water is introduced into the serpentine cavity to cool the lower mold and molding cavity, thereby accelerating the molding rate. The cooled water is then returned through a return pipe and refrigerated again by the cooler, thus achieving the recycling of cooling water. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0024] Figure 2 This is a frontal cross-sectional view of the present invention.

[0025] Figure 3 For the present utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0026] Figure 4 This is a three-dimensional structural diagram of the insertion rod of this utility model;

[0027] Figure 5 For the present utility model Figure 2 Enlarged structural diagram at point B.

[0028] The reference numerals in the diagram are as follows: 1. Base; 2. Hydraulic push rod; 3. Top plate; 4. Mounting structure; 401. Mounting groove; 402. First template; 403. Upper mold; 404. Second template; 405. Lower mold; 406. First through hole; 407. Second through hole; 408. Insert rod; 409. External thread; 410. Limiting block; 411. Threaded groove; 412. Spring; 5. Cooling structure; 501. Injection tube; 502. Flow channel; 503. Heating plate; 504. Liquid inlet; 505. Molding cavity; 506. Cooling cavity; 507. Water inlet pipe; 508. Refrigerator; 509. Water pump; 510. Water supply pipe; 511. Serpentine cavity; 512. Connecting pipe; 513. Return pipe; 514. Connecting hole; 515. Sealing ring. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Please see Figure 1-5The present invention provides a woodworking milling cutter MIM mold, including a base 1 and a mounting structure 4.

[0031] Reference Figures 1-4 As shown, hydraulic push rods 2 are installed at the edge of the top of the base 1. A top plate 3 is installed at the top of the hydraulic push rods 2. An installation structure 4 is installed between the base 1 and the top plate 3. The installation structure 4 includes an installation groove 401 inside the top plate 3. A first template 402 is installed at the top of the top plate 3. An upper mold 403 is fixed to the bottom of the first template 402 inside the installation groove 401. A second template 404 is installed at the top of the base 1. A lower mold 405 is fixed to the top of the second template 404. A first through hole 406 is provided on both sides inside the first template 402. A second through hole 407 is provided on both sides inside the second template 404. Insert rods are installed inside the first through hole 406 and the second through hole 407. 408, both ends of the insertion rod 408 are provided with external threads 409, the top of the insertion rod 408 is equipped with a limit block 410, the bottom of the insertion rod 408 is provided with a threaded groove 411, the bottom of the top plate 3 is provided with a spring 412 on the outside of the insertion rod 408, the first through hole 406 is symmetrically distributed inside the first template 402, the second through hole 407 is symmetrically distributed inside the second template 404, the first through hole 406 and the second through hole 407 correspond one-to-one, the insertion rod 408 and the limit block 410 are threadedly connected by external threads 409, the insertion rod 408 and the threaded groove 411 are threadedly connected by external threads 409, and the top plate 3 and the insertion rod 408 are telescopically connected by spring 412.

[0032] By placing the second template 404 at the top of the base 1, the connecting pipe 512 and the return pipe 513 are inserted into the water supply pipe 510 and the connecting hole 514 respectively, and a sealing connection is formed by the sealing ring 515, thereby initially positioning the lower mold 405. The upper mold 403 is then installed inside the mounting groove 401 to position the upper mold 403. Then, the insert rod 408 is passed through the first through hole 406 and the second through hole 407 respectively to reposition the upper mold 403 and the lower mold 405, thereby further improving the positioning accuracy of the upper mold 403 and the lower mold 405. Finally, the insert rod 408 is rotated and, under the action of the external thread 409, engages with the thread groove 411. The internal structure forms a threaded connection, thereby fixing the insert rod 408 to the top of the base 1. At the same time, the rotating limiting block 410 forms a threaded connection with the external thread 409, thereby limiting the first template 402. This allows for the rapid installation and precise positioning of the upper mold 403 and the lower mold 405. Then, with the activation of the hydraulic push rod 2, the top plate 3 can be moved downward, causing the upper mold 403 and the lower mold 405 to close. During the closing process of the upper mold 403 and the lower mold 405, the spring 412 is compressed, thereby reducing the impact force between the upper mold 403 and the lower mold 405 and preventing damage to the mold.

[0033] Reference Figure 2 and Figure 5As shown, the base 1 has a cooling structure 5 inside, which includes an injection tube 501 fixed to the top of the first template 402. The upper mold 403 has a flow channel 502 inside, and heating plates 503 are fixed inside the upper mold 403 on both sides of the flow channel 502. An inlet 504 is fixed at the bottom of the flow channel 502. The upper mold 403 and the lower mold 405 have molding cavities 505 inside. The base 1 has a cooling cavity 506 inside, and a water inlet pipe 507 is fixed on one side of the base 1. A cooler 508 is installed inside the cooling cavity 506, and a water pump 509 is installed inside the cooling cavity 506 on one side of the cooler 508. A water delivery pipe 510 is fixed at the output end of the water pump 509. A serpentine cavity 511 is provided outside the molding cavity 505 inside the lower mold 405. A connecting pipe 512 is fixed on one side of the bottom end of the serpentine cavity 511. A return pipe 513 is fixed on one side, and a connecting hole 514 is fixed on one side of the top of the cooling chamber 506. A sealing ring 515 is fixed inside one end of the water supply pipe 510 and the connecting hole 514. The top end of the flow channel 502 is fixedly connected to the bottom end of the injection tube 501. The liquid inlet 504 is evenly distributed at the bottom end of the flow channel 502. The liquid inlet 504 corresponds to the molding cavity 505 one by one. The heating plate 503 is symmetrically distributed at the top end of the flow channel 502. One end of the water inlet pipe 507 extends through one side of the base 1 to the inside of the cooling chamber 506. The top end of the water supply pipe 510 extends through the inside of the base 1 to the top end of the base 1. The water supply pipe 510 and the connecting hole 514 are symmetrically distributed inside the top end of the base 1. The connecting pipe 512 and the water supply pipe 510 are sealed together by the sealing ring 515. The return pipe 513 and the connecting hole 514 are sealed together by the sealing ring 515.

[0034] Hot flow is injected into the flow channel 502 through the injection tube 501, and then flows into the molding cavity 505 through the liquid inlet 504 for molding. By setting the heating plate 503, the hot flow inside the flow channel 502 can be kept molten, and the hot flow can be prevented from solidifying and causing blockage inside the flow channel 502. Then, by starting the water pump 509, the cooling water inside the cooling cavity 506 is introduced into the connecting pipe 512 through the water supply pipe 510 and flows into the serpentine cavity 511 to cool the lower mold 405 and the molding cavity 505, thereby accelerating the molding rate. The cooled water after being heated flows back into the connecting hole 514 through the return pipe 513 for return, and then circulates again after being cooled by the refrigerator 508, thus realizing the recycling of cooling water.

[0035] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A woodworking milling cutter MIM mold, comprising a base (1) and a mounting structure (4); Its features are: Hydraulic push rods (2) are installed at the edge of the top of the base (1). A top plate (3) is installed at the top of the hydraulic push rods (2). An installation structure (4) is installed between the base (1) and the top plate (3). The installation structure (4) includes an installation groove (401) set inside the top plate (3). A first template (402) is installed at the top of the top plate (3). An upper mold (403) is fixed at the bottom of the first template (402) inside the installation groove (401). A second template (404) is set at the top of the base (1). A lower mold (403) is fixed at the top of the second template (404). 5) The first template (402) has a first through hole (406) on both sides inside, and the second template (404) has a second through hole (407) on both sides inside. The first through hole (406) and the second through hole (407) are equipped with a plug rod (408). The plug rod (408) has external threads (409) on both sides of its two ends. The plug rod (408) has a limit block (410) installed at its top end. The plug rod (408) has a threaded groove (411) inside its bottom base (1). The top plate (3) has a spring (412) installed on the outside of the plug rod (408) at its bottom end.

2. The woodworking milling cutter MIM mold according to claim 1, characterized in that: The first through hole (406) is symmetrically distributed inside the first template (402), and the second through hole (407) is symmetrically distributed inside the second template (404). The first through hole (406) and the second through hole (407) correspond one-to-one.

3. The woodworking milling cutter MIM mold according to claim 1, characterized in that: The insertion rod (408) and the limiting block (410) are connected by an external thread (409), the insertion rod (408) and the threaded groove (411) are connected by an external thread (409), and the top plate (3) and the insertion rod (408) are connected by a spring (412) to form a telescopic structure.

4. The woodworking milling cutter MIM mold according to claim 1, characterized in that: The base (1) is provided with a cooling structure (5) inside. The cooling structure (5) includes an injection tube (501) fixed to the top of the first template (402). The upper mold (403) is provided with a flow channel (502) inside. Heating plates (503) are fixed inside the upper mold (403) on both sides of the flow channel (502). An inlet (504) is fixed at the bottom end of the flow channel (502). Molding cavities (505) are provided inside the upper mold (403) and the lower mold (405). The base (1) is provided with a cooling cavity (506). A water inlet pipe (507) is fixed on one side of the base (1). The cooling cavity (506) has... A cooler (508) is installed inside the cooling chamber (506) on one side of the cooler (508), and a water pump (509) is installed inside the cooling chamber (506) on one side of the cooler (508). A water supply pipe (510) is fixed to the output end of the water pump (509). A serpentine cavity (511) is provided on the outside of the forming cavity (505) inside the lower mold (405). A connecting pipe (512) is fixed to one side of the bottom end of the serpentine cavity (511), and a return pipe (513) is fixed to the other side of the bottom end of the serpentine cavity (511). A connecting hole (514) is fixed to one side of the top end of the cooling chamber (506). A sealing ring (515) is fixed inside one end of the water supply pipe (510) and the connecting hole (514).

5. A woodworking milling cutter MIM mold according to claim 4, characterized in that: The top end of the flow channel (502) is fixedly connected to the bottom end of the injection tube (501). The liquid inlets (504) are evenly distributed at the bottom end of the flow channel (502). The liquid inlets (504) correspond one-to-one with the molding cavity (505). The heating plates (503) are symmetrically distributed at the top end of the flow channel (502).

6. A woodworking milling cutter MIM mold according to claim 4, characterized in that: One end of the water inlet pipe (507) extends through one side of the base (1) to the interior of the cooling chamber (506), and the top end of the water supply pipe (510) extends through the interior of the base (1) to the top end of the base (1). The water supply pipe (510) and the connecting hole (514) are symmetrically distributed inside the top end of the base (1).

7. A woodworking milling cutter MIM mold according to claim 4, characterized in that: The connecting pipe (512) and the water supply pipe (510) are sealed together by a sealing ring (515), and the return pipe (513) and the connecting hole (514) are sealed together by a sealing ring (515).

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