Powder compacting die

Abstract

The utility model relates to a kind of powder compaction moulds.It involves new energy battery technical field.The present application specifically includes the upper pressure seat of being equipped with the compression mould cavity, the lower pressure seat in the bottom of upper pressure seat, the plunger of being inserted in the top of compression mould cavity, the material clamping piece in compression film cavity, and the ejection seat in the bottom of upper pressure seat;Upper pressure seat is integrated structure, material clamping piece is used to hold powder, lower pressure seat is used to close the bottom of compression film cavity when powder compaction, ejection seat is equipped with ejection channel, ejection channel is for the material clamping piece that holds compacted powder to pass through.The utility model is through ejection seat instead of lower pressure seat and set in the bottom of upper pressure seat, make ejection channel in ejection seat and compression film cavity communicate, then through the plunger in compression mould cavity is pressed down when plunger in external press equipment, plunger can push material clamping piece and its hold compacted powder from compression mould cavity to ejection channel, so that the ejection operation of this mould is simple and convenient, easy to implement, and further improve production efficiency.

Description

TECHNICAL FIELD

[0001] The utility model relates to new energy battery technical field especially, and relates to a kind of powder compaction mould. BACKGROUND

[0002] Now, various products powered by lithium battery have become an important part of human daily life, and people's quality performance requirements for lithium battery are also higher and higher. In the raw materials of battery, the compaction density of powder determines the upper limit of battery capacity to some extent, and has important reference significance for upgrading and optimizing battery performance.

[0003] The existing powder compaction mould, in order to facilitate material withdrawal, usually adopts split structure. When withdrawing material, the mould is broken open, and the compacted powder is taken out. On the one hand, the material withdrawal operation is difficult and inefficient, and the mould may be damaged due to misoperation of the staff. On the other hand, the compacted powder is prone to cracks when the split structure mould is compacted, which affects the compaction quality of the powder and further affects the performance of the battery. UTILITY MODEL CONTENTS

[0004] The utility model aims at the deficiencies of the prior art, and provides a powder compaction mould, which can simplify the material withdrawal operation, improve the production efficiency, ensure the compaction quality of the powder, and further ensure the performance of the battery.

[0005] The utility model provides a powder compaction mould, which comprises an upper pressing seat provided with a pressing cavity, a lower pressing seat arranged at the bottom of the upper pressing seat, a plunger inserted into the top of the pressing cavity, a clamping piece arranged in the pressing cavity, and a mould withdrawal seat arranged at the bottom of the upper pressing seat. The upper pressing seat is of an integral structure. The clamping piece is used to clamp the powder. The lower pressing seat is used to close the bottom of the pressing cavity when the powder is compacted. The mould withdrawal seat is provided with a material withdrawal channel. The clamping piece with compacted powder passes through the material withdrawal channel.

[0006] Further, the lower pressing seat comprises a first bottom table and a first boss vertically extending upwards at the top of the first bottom table. The cross-sectional area of the first bottom table is greater than that of the first boss. The pressing cavity comprises an upper cavity and a lower cavity in communication with each other. The cross-sectional area of the lower cavity is greater than that of the upper cavity. The plunger is inserted into the upper cavity. The first boss is inserted into the lower cavity. The first bottom table abuts against the upper pressing seat.

[0007] Further, the clamping piece comprises an upper gasket and a lower gasket arranged in the pressing cavity from top to bottom. The powder is arranged between the upper gasket and the lower gasket. The plunger acts on the upper gasket. The lower pressing seat abuts against the lower gasket.

[0008] Further, the ejection seat comprises a first seat matched with the compression cavity, and a plurality of second seats connected in sequence, the first end of the second seat is connected with the first seat, the ejection channel comprises a first channel arranged in the first seat, and a second channel arranged in the second seat, the second channel is communicated with the first channel.

[0009] Further, the first seat comprises a second base and a second boss vertically upwardly extending on the top of the second base, the cross-sectional area of the second base is larger than that of the second boss, the second boss is insertedly matched with the lower cavity, and the second base is abutted with the upper seat.

[0010] Further, the first seat further comprises a third boss vertically downwardly extending on the bottom of the second base, the top of the second seat is provided with a first insertion slot, and the bottom is provided with a fourth boss vertically downwardly extending, and the third boss and the fourth boss are both insertedly matched with the first insertion slot.

[0011] Further, the outer periphery of the third boss and the fourth boss is provided with a protrusion, the sidewall of the first insertion slot is provided with a second insertion slot, and the protrusion is insertedly matched with the second insertion slot.

[0012] Further, the protrusion is provided with a threaded hole, the outer periphery of the second seat is provided with a through hole communicated with the second insertion slot, and the ejection seat further comprises a bolt with one end penetrating through the through hole and being screwed with the threaded hole.

[0013] Further, one side of the ejection channel is provided with a material taking port, the material taking port is communicated with the outside, and the caliber of the material taking port gradually increases from inside to outside.

[0014] Further, the inner wall of the ejection channel and the material taking port is provided with a step extending inwardly, and the ejection seat further comprises a material taking plate arranged on the step.

[0015] The powder compression mold has the following beneficial effects:

[0016] (1) The upper seat of the mold is made in an integral molding mode, that is, the compression cavity is an integral structure, so that the powder is circumferentially limited by the integral compression cavity during the powder compression process, the cracks of the compressed powder can be prevented, the powder compression quality is ensured, and the performance of the battery is ensured.

[0017] (2) When the material is removed, the lower pressing seat is removed from the upper pressing seat, the mold retainer is arranged at the bottom of the upper pressing seat instead of the lower pressing seat, the mold removal channel in the mold retainer is communicated with the pressing cavity, and then the plunger is pressed in the pressing cavity by the external pressing equipment, so that the plunger can push the clamping piece and the compacted powder held thereby from the pressing cavity to the material removal channel, thereby making the material removal operation of the mold simple and convenient, easy to implement, and further improving the production efficiency;

[0018] (3) The cross-sectional area of the lower mold cavity of the mold is greater than that of the upper mold cavity, so that the clamping piece and the compacted powder can more smoothly pass through the lower mold cavity into the material removal channel, thereby making the material removal operation of the mold simple and convenient, easy to implement, and improving the production efficiency;

[0019] (4) The mold clamps the powder through the upper gasket and the lower gasket, the plunger applies pressure to the upper gasket, and then the powder is compacted by the pressure transmitted by the upper gasket and the lower gasket, so that the plunger does not directly contact the powder, thereby reducing the waste of the powder and ensuring the quality of the compacted powder;

[0020] (5) The material removal channel of the mold includes a first channel arranged in the first mold seat and a second channel arranged in the plurality of second mold seats, so that the height of the material removal channel can be adjusted by increasing or decreasing the number of the second mold seats, so that the compacted powder of different heights can be completely entered into the material removal channel under the action of the plunger, thereby making the application range of the mold wider and the practicality stronger;

[0021] (6) The outer periphery of the third boss and the fourth boss of the mold is provided with a protrusion, a second insertion groove is arranged on the sidewall of the first insertion groove, the first end second mold seat and the first mold seat are connected, and the connection between the adjacent two second mold seats is circumferentially limited by the insertion and cooperation of the protrusion and the second insertion groove, so that the connection between the first end second mold seat and the first mold seat and the connection between the adjacent two second mold seats are more stable, and the stability of the structure of the mold is further enhanced;

[0022] (7) The material removal channel of the mold is provided with a material taking port on one side, the material taking port communicates the material removal channel with the outside, and the caliber of the material taking port gradually increases from inside to outside, so that the compacted powder can be taken out through the material taking port after the plunger completely pushes the compacted powder into the material removal channel, thereby making the material removal operation of the mold more simple and convenient, easy to implement, and improving the production efficiency;

[0023] (8) The inner wall of the material withdrawal channel and the material taking opening of the mold is provided with a step, the mold base further comprises a material taking plate, the step extends inwardly, so that the material taking plate can be erected on the step, after the plunger pushes the clamping piece and the compacted powder clamped thereby into the material withdrawal channel, the clamping piece and the compacted powder clamped thereby fall on the material taking plate, then the material taking plate is pulled out along the material taking opening, so that the material taking plate carries out the clamping piece and the compacted powder clamped thereby, thereby making the compacted powder easier and more convenient to take out. BRIEF DESCRIPTION OF DRAWINGS

[0024] The accompanying drawings incorporated in and forming a part of the specification illustrate embodiments of the application and, together with the description, serve to explain the principles of the application. In the drawings:

[0025] Figure 1 It is an installation explosion diagram when the powder compacting mold of the embodiment of the present application is compacting;

[0026] Figure 2 It is an installation explosion diagram when the powder compacting mold of the embodiment of the present application is compacting;

[0027] Figure 3 It is a cross-sectional schematic diagram when the powder compacting mold of the embodiment of the present application is compacting;

[0028] Figure 4 It is a cross-sectional schematic diagram of the upper pressing seat of the powder compacting mold of the embodiment of the present application;

[0029] Figure 5 It is a structural schematic diagram of the mold base of the powder compacting mold of the embodiment of the present application;

[0030] Figure 6 It is a structural schematic diagram of the first mold base of the powder compacting mold of the embodiment of the present application;

[0031] Figure 7 It is a structural schematic diagram of the second mold base of the powder compacting mold of the embodiment of the present application.

[0032] In the figure: 1, upper pressing seat; 11, pressing cavity; 111, upper cavity; 112, lower cavity; 2, lower pressing seat; 21, first bottom; 22, first boss; 3, plunger; 4, clamping piece; 41, upper gasket; 42, lower gasket; 5, ejection seat; 51, ejection channel; 511, first channel; 512, second channel; 52, first die seat; 521, second bottom; 522, second boss; 523, third boss; 524, protrusion; 5241, threaded hole; 53, second die seat; 531, first insertion slot; 532, fourth boss; 533, second insertion slot; 534, through hole; 54, material taking opening; 55, step; 56, material taking plate; 57, bolt; 6, powder. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. All other embodiments obtained by those skilled in the art without creative labor based on the embodiments in the present application belong to the scope of protection of the present application.

[0034] Please refer to Figures 1-7 The powder pressing die in the embodiments of the present application comprises an upper pressing seat 1 provided with a pressing cavity 11, a lower pressing seat 2 arranged at the bottom of the upper pressing seat 1, a plunger 3 inserted into the top of the pressing cavity 11, a clamping piece 4 arranged in the pressing cavity 11, and an ejection seat 5 arranged at the bottom of the upper pressing seat 1. The upper pressing seat 1 is of an integral structure. The clamping piece 4 is used to clamp the powder 6. The lower pressing seat 2 is used to close the bottom of the pressing cavity 11 when the powder 6 is pressed. The ejection seat 5 is provided with an ejection channel 51. The ejection channel 51 is used for the clamping piece 4 clamping the pressed powder 6 to pass through.

[0035] In the present application, the powder pressing die comprises the upper pressing seat 1, the lower pressing seat 2, the plunger 3 and the clamping piece 4. The pressing cavity 11 is arranged in the upper pressing seat 1. When the powder 6 is pressed, the lower pressing seat 2 is arranged at the bottom of the upper pressing seat 1. The lower pressing seat 2 is used to close the bottom opening of the pressing cavity 11 by cooperating with the pressing cavity 11. The clamping piece 4 is arranged in the pressing cavity 11. The bottom of the clamping piece 4 abuts against the lower pressing seat 2. The powder 6 is loaded in the clamping piece 4. The clamping piece 4 is used to clamp the powder 6. The plunger 3 is inserted into the pressing cavity 11 from the top opening of the pressing cavity 11. The bottom of the plunger 3 abuts against the top of the clamping piece 4. The top of the plunger 3 extends outside the pressing cavity 11.

[0036] When the external press equipment acts on the top of the plunger 3 to press the plunger 3 in the compression cavity 11, the plunger 3 exerts pressure on the top of the clamping piece 4, and the bottom of the clamping piece 4 abuts against the lower pressing seat 2, so that the powder 6 clamped by the clamping piece 4 is pressed, thereby realizing the compaction of the powder 6.

[0037] It can be foreseen that in the present embodiment, the powder 6 clamped by the clamping piece 4 is pressed, and the inner wall of the compression cavity 11 limits the powder 6 in the circumferential direction, so as to compact the powder 6. Since in the present application, the upper pressing seat 1 is made in an integral molding manner, i.e., the compression cavity 11 is an integral structure, so that in the process of compacting the powder, the powder 6 is limited in the circumferential direction by the integral compression cavity 11, which can prevent the compacted powder from having cracks, thereby ensuring the compaction quality of the powder and further ensuring the performance of the battery.

[0038] It can be foreseen that when the upper pressing seat 1 is made in an integral molding manner, the powder 6 compacted in the compression cavity 11 is difficult to take out, thereby causing the ejection of the mold to be more difficult. Therefore, in the present application, the powder compaction mold further comprises an ejection seat 5, after the compaction of the powder 6 is completed, the lower pressing seat 2 is removed from the upper pressing seat 1 and replaced by the ejection seat 5, i.e., the ejection seat 5 is arranged at the bottom of the upper pressing seat 1 instead of the lower pressing seat 2.

[0039] The ejection seat 5 is provided with an ejection channel 51, when the ejection seat 5 is arranged at the bottom of the upper pressing seat 1 instead of the lower pressing seat 2, the bottom of the compression cavity 11 communicates with the ejection channel 51, at this time, when the external press equipment acts on the top of the plunger 3 to press the plunger 3 in the compression cavity 11, the plunger 3 exerts pressure on the top of the clamping piece 4, the clamping piece 4 and the compacted powder 6 located therein are pushed from the compression cavity 11 to the ejection channel 51, and then the clamping piece 4 and the compacted powder 6 clamped thereby are taken out from the ejection channel 51, thereby completing the ejection, so that the ejection operation of the mold is simple and convenient, easy to implement, and further improves the production efficiency.

[0040] In the present embodiment, the lower pressing seat 2 comprises a first bottom table 21 and a first boss 22, the first boss 22 vertically extends upward on the top of the first bottom table 21, and the cross-sectional area of the first bottom table 21 is larger than that of the first boss 22. The compression cavity 11 comprises an upper cavity 111 and a lower cavity 112, the upper cavity 111 and the lower cavity 112 communicate with each other, and the cross-sectional area of the lower cavity 112 is larger than that of the upper cavity 111.

[0041] When the powder 6 is compacted, the lower pressing seat 2 is installed at the bottom of the upper pressing seat 1, the first boss 22 is inserted into the lower die cavity 112, and the first bottom 21 abuts against the bottom of the upper pressing seat 1, so that the bottom of the upper die cavity 111 is closed by the first boss 22. Since the cross-sectional area of the lower die cavity 112 is larger than that of the upper die cavity 111, the first boss 22 can better close the bottom of the upper die cavity 111 by being inserted into the lower die cavity 112.

[0042] The material clamping piece 4 is arranged in the upper die cavity 111, and the bottom of the material clamping piece 4 abuts against the first boss 22, and the powder 6 is clamped in the material clamping piece 4. The plunger 3 is inserted into the upper die cavity 111 from the top of the upper die cavity 111, and the top of the plunger 3 extends outside the upper die cavity 111. When the plunger 3 is pressed in the upper die cavity 111 by the external press equipment acting on the top of the plunger 3, the plunger 3 applies pressure to the top of the material clamping piece 4, and the bottom of the material clamping piece 4 abuts against the first boss 22, so that the powder 6 clamped by the material clamping piece 4 is pressed, thereby achieving the compaction of the powder 6.

[0043] After the compaction of the powder 6 is completed, the ejection seat 5 replaces the lower pressing seat 2 and is installed at the bottom of the upper pressing seat 1, so that the ejection channel 51 in the ejection seat 5 communicates with the bottom of the lower die cavity 112. Then, when the plunger 3 is pressed in the die cavity 11 by the external press equipment acting on the top of the plunger 3, the plunger 3 applies pressure to the top of the material clamping piece 4, pushes the material clamping piece 4 and the compacted powder 6 clamped therein from the upper die cavity 111 to the ejection channel 51, and then takes out the material clamping piece 4 and the compacted powder 6 clamped therein from the ejection channel 51, thereby completing the ejection of the compacted powder 6.

[0044] Since the plunger 3 pushes the material clamping piece 4 and the compacted powder 6 located therein from the upper die cavity 111 to the ejection channel 51, it passes through the lower die cavity 112. Therefore, in this application, the cross-sectional area of the lower die cavity 112 is set to be larger than that of the upper die cavity 111, so that the material clamping piece 4 and the compacted powder 6 can more smoothly pass through the lower die cavity 112 to enter the ejection channel 51, thereby making the ejection operation of the mold simple and convenient, easy to implement, and improving the production efficiency.

[0045] In this embodiment, the material clamping piece 4 includes an upper gasket 41 and a lower gasket 42, which are arranged in the die cavity 11 from top to bottom. The powder 6 is loaded between the upper gasket 41 and the lower gasket 42, so that the powder 6 is clamped by the upper gasket 41 and the lower gasket 42. Since the lower pressing seat 2 abuts against the lower gasket 42, when the plunger 3 applies pressure to the upper gasket 41, the powder 6 located between the upper gasket 41 and the lower gasket 42 can be pressed by the upper gasket 41 and the lower gasket 42, and the die cavity 11 limits the powder 6 in the circumferential direction, thereby compacting the powder 6.

[0046] Specifically, in actual implementation, the loading of the powder 6 is performed by first loading the lower gasket 42 into the die cavity 11, then loading the powder 6 into the die cavity 11, and finally loading the upper gasket 41 into the die cavity 11, so that the upper gasket 41 and the lower gasket 42 are arranged in the die cavity 11 from top to bottom in sequence, and the powder 6 is located between the upper gasket 41 and the lower gasket 42.

[0047] In the prior art, usually only the lower gasket 42 is arranged in the die cavity 11, and the powder 6 is located on the lower gasket 42, and the powder 6 is compacted by directly applying pressure to the powder 6 by the plunger 3. The implementation mode that the plunger 3 directly contacts the powder 6 can cause the powder 6 to be contaminated on the plunger 3 during the process of applying pressure to the powder 6 by the plunger 3, which can cause waste of the powder 6 and affect the quality of the compacted powder 6.

[0048] In the present application, the powder 6 is clamped in the middle by the upper gasket 41 and the lower gasket 42, the plunger 3 applies pressure to the upper gasket 41, and the powder 6 is compacted by transmitting pressure through the upper gasket 41 and the lower gasket 42, so that the plunger 3 does not directly contact the powder 6, thereby reducing waste of the powder 6 and ensuring the quality of the compacted powder 6.

[0049] In actual production, different amounts of the powder 6 to be compacted are required for different needs, so that the height of the compacted powder 6 is different. If the material removal channel 51 in the die holder 5 has a fixed height, when the height of the compacted powder 6 exceeds the height of the material removal channel 51, the compacted powder 6 cannot completely enter the material removal channel 51, thereby causing difficulty in material removal.

[0050] In the present embodiment, the die holder 5 includes a first die holder 52 and a plurality of second die holders 53, and the plurality of second die holders 53 are connected in sequence, wherein the first end second die holder 53 is connected with the first die holder 52. The material removal channel 51 includes a first channel 511 arranged in the first die holder 52 and a second channel 512 arranged in the plurality of second die holders 53, the second channel 512 of the first end second die holder 53 is in communication with the first channel 511 of the first die holder 52, and the second channels 512 of the sequentially connected second die holders 53 are in communication with each other.

[0051] Therefore, in actual use, by increasing or decreasing the number of the second die holders 53, the height of the material removal channel 51 can be adjusted, so that the compacted powder 6 with different heights can completely enter the material removal channel 51 under the action of the plunger 3, thereby making the present die set have a wider application range and stronger practicality.

[0052] In the embodiment, the first die holder 52 comprises a second base 521 and a second boss 522, wherein the cross-sectional area of the second base 521 is larger than that of the second boss 522, and the second boss 522 extends vertically upward on the second base 521. When the die withdrawal holder 5 is installed at the bottom of the upper press holder 1 to replace the lower press holder 2 after the compaction of the powder 6 is completed, the second boss 522 is inserted into the lower die cavity 112 to replace the first boss 22, and the second base 521 abuts against the bottom of the upper press holder 1, so that the installation of the first die holder 52 at the bottom of the upper press holder 1 is more stable, and the overall structure of the first die holder 52 and the upper press holder 1 can withstand greater pressure from the external press equipment, so that the stability of the mold structure is stronger.

[0053] In the embodiment, the first die holder 52 further comprises a third boss 523 extending vertically downward at the bottom of the second base 521. The second die holder 53 is provided with a first insertion slot 531 at the top and a fourth boss 532 extending vertically downward at the bottom.

[0054] When the second die holder 53 at the head is connected to the first die holder 52, the third boss 523 at the bottom of the second base 521 is inserted into the first insertion slot 531 at the top of the second die holder 53; when two adjacent second die holders 53 are connected, the fourth boss 532 at the bottom of the previous second die holder 53 is inserted into the first insertion slot 531 at the top of the next second die holder 53, so that the overall structure of the die withdrawal holder 5 and the upper press holder 1 can withstand greater pressure from the external press equipment, so that the stability of the mold structure is stronger.

[0055] In the embodiment, the third boss 523 and the fourth boss 532 are each provided with a protrusion 524 on the outer periphery, and the first insertion slot 531 is provided with a second insertion slot 533 on the side wall. When the second die holder 53 at the head is connected to the first die holder 52, the third boss 523 at the bottom of the second base 521 is inserted into the first insertion slot 531 at the top of the second die holder 53, and the protrusion 524 on the outer periphery of the third boss 523 is inserted into the second insertion slot 533 on the side wall of the first insertion slot 531.

[0056] When two adjacent second die holders 53 are connected, the fourth boss 532 at the bottom of the previous second die holder 53 is inserted into the first insertion slot 531 at the top of the next second die holder 53, and the protrusion 524 on the outer periphery of the fourth boss 532 is inserted into the second insertion slot 533 on the side wall of the first insertion slot 531. Through the insertion of the protrusion 524 and the second insertion slot 533, the connection of the second die holder 53 at the head and the first die holder 52, and the connection of the two adjacent second die holders 53 are more stable, and the stability of the mold structure is further enhanced.

[0057] In the embodiment, the protrusion 524 is provided with a threaded hole 5241, and the outer periphery of the second die holder 53 is provided with a through hole 534 which is communicated with the second insertion groove 533. The die withdrawing holder 5 further comprises a bolt 57. During the process of connecting the first die holder 52 with the first end of the second die holder 53, the protrusion 524 on the outer periphery of the third protrusion 523 is first inserted into the second insertion groove 533 on the side wall of the first insertion groove 531, and then the bolt 57 is screwed with the threaded hole 5241 on the protrusion 524 after the one end of the bolt 57 penetrates through the through hole 534 on the outer periphery of the second die holder 53, so as to fixedly connect the second die holder 53 with the first die holder 52.

[0058] During the process of connecting two adjacent second die holders 53, the protrusion 524 on the outer periphery of the fourth protrusion 532 is first inserted into the second insertion groove 533 on the side wall of the first insertion groove 531, and then the bolt 57 is screwed with the threaded hole 5241 on the protrusion 524 after the one end of the bolt 57 penetrates through the through hole 534 on the outer periphery of the next second die holder 53, so as to fixedly connect the two adjacent second die holders 53, further enhancing the stability of the whole structure of the die withdrawing holder 5 and the upper pressing seat 1, enabling the die withdrawing holder 5 to withstand greater pressure from the external pressing equipment, and further enhancing the stability of the die structure.

[0059] In the embodiment, the material withdrawing channel 51 is provided with a material taking opening 54 on one side, and the material taking opening 54 communicates the material withdrawing channel 51 with the outside. After the plunger 3 pushes the compacted powder 6 into the material withdrawing channel 51, the compacted powder 6 can be taken out through the material taking opening 54, further simplifying the material withdrawing operation of the die set, making the operation easy to implement, and improving the production efficiency.

[0060] In the application, the inner diameter of the material withdrawing channel 51 is the same as the inner diameter of the upper die cavity 111, i.e. the inner diameter of the material withdrawing channel 51 is adapted to the outer diameter of the compacted powder 6, so that the inner wall of the material withdrawing channel 51 limits the compacted powder 6 in the circumferential direction during the process of pushing the compacted powder 6 into the material withdrawing channel 51 by the plunger 3, thereby preventing the compacted powder 6 from being cracked during the material withdrawing process, further ensuring the compacting quality of the powder and the performance of the battery.

[0061] Since the inner diameter of the material withdrawing channel 51 is adapted to the outer diameter of the compacted powder 6, it is difficult to take out the compacted powder 6 which is completely pushed into the material withdrawing channel 51, thereby causing difficulty in the material withdrawing process. In the application, the diameter of the material taking opening 54 is gradually increased from the inside to the outside, thereby making the operation of taking out the compacted powder 6 through the material taking opening 54 easier to implement, further simplifying the material withdrawing operation of the die set, making the operation easy to implement, and improving the production efficiency.

[0062] In the foregoing embodiment, it is mentioned that the die withdrawing seat 5 comprises the first die seat 52 matched with the die cavity 11, and a plurality of second die seats 53 connected in sequence, and the material withdrawing channel 51 comprises the first channel 511 arranged in the first die seat 52 and the second channel 512 arranged in the plurality of second die seats 53.

[0063] Therefore, in the specific implementation, one side of the first channel 511 and the second channel 512 is provided with the material taking opening 54, and the material taking opening 54 arranged on one side of the first channel 511 communicates the first channel 511 with the outside, and the material taking opening 54 arranged on one side of the second channel 512 communicates the second channel 512 with the outside.

[0064] When the first end second die seat 53 is connected with the first die seat 52, the material taking opening 54 on one side of the second channel 512 is aligned with the material taking opening 54 on one side of the first channel 511; when two adjacent second die seats 53 are connected, the material taking openings 54 arranged on one side of the second channels 512 in the two second die seats 53 are aligned, thereby forming a complete material taking opening 54.

[0065] In the foregoing embodiment, it is mentioned that the outer periphery of the third boss 523 and the fourth boss 532 is provided with the protrusion 524, and the sidewall of the first plug-in slot 531 is provided with the second plug-in slot 533. Through the plug-in cooperation of the protrusion 524 and the second plug-in slot 533, the connection of the first end second die seat 53 with the first die seat 52 and the connection of two adjacent second die seats 53 can be circumferentially limited, and the material taking opening 54 on one side of the second channel 512 can be aligned with the material taking opening 54 on one side of the first channel 511, and the material taking openings 54 arranged on one side of the second channels 512 in the two second die seats 53 can be aligned, thereby further making the material withdrawing operation of the die set more simple and convenient, easy to implement, and further improving the production efficiency.

[0066] In the embodiment, the inner wall of the material withdrawing channel 51 and the material taking opening 54 is provided with the step 55, and the die withdrawing seat 5 further comprises the material taking plate 56, and the step 55 extends inwardly, so that the material taking plate 56 can be erected on the step 55. After the plunger 3 pushes the clamping member 4 and the compacted powder 6 clamped thereby into the material withdrawing channel 51, the clamping member 4 and the compacted powder 6 clamped thereby fall on the material taking plate 56, and then the material taking plate 56 is pulled out along the material taking opening 54, so that the material taking plate 56 takes out the clamping member 4 and the compacted powder 6 clamped thereby, thereby making the taking out of the compacted powder 6 more simple and convenient.

[0067] In the foregoing embodiment, it is mentioned that the die withdrawing seat 5 comprises the first die seat 52 matched with the die cavity 11, and a plurality of second die seats 53 connected in sequence, and the material withdrawing channel 51 comprises the first channel 511 arranged in the first die seat 52 and the second channel 512 arranged in the plurality of second die seats 53, and the height of the material withdrawing channel 51 can be adjusted by increasing or decreasing the number of the second die seats 53.

[0068] Therefore, in actual implementation, the first channel 511 of the first mold seat 52 and the inner wall of the material taking opening 54, and the second channel 512 of the plurality of second mold seats 53 and the inner wall of the material taking opening 54 are provided with the steps 55 extending inwardly, so that when the number of the second mold seats 53 is increased or decreased, the different height of the compacted powder 6 can be made to fall on the material taking plate 56 after being completely pushed into the material returning channel 51 by setting the material taking plate 56 on the lowest step 55, and the compacted powder 6 can be taken out of the material returning channel 51 by the material taking plate 56.

[0069] Further, in the embodiment, the material taking plate 56 is provided with the friction part, and when the material taking plate 56 is taken out along the material taking opening 54 by the worker applying the force to the material taking plate 56, the friction part increases the friction between the hand of the worker and the material taking plate 56, so that the compacted powder 6 is taken out more simply and conveniently.

[0070] The above description can be implemented alone or in various combinations, and these variations are within the protection scope of the utility model.

[0071] It should be noted that, in this paper, the relationship terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between the entities or operations. Moreover, the term "include", "contain" or any other variant thereof is intended to cover non-exclusive inclusion, so that the process, method, article or equipment containing a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment. Without more limitations, the element defined by the statement "including one" does not exclude the presence of another identical element in the process, method, article or equipment including the element.

[0072] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the utility model, and not to limit them. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the utility model.

Claims

1. A powder compacting die, characterized by: The utility model provides a powder compacting device, which comprises an upper pressing seat (1) provided with a pressing cavity (11), a lower pressing seat (2) arranged at the bottom of the upper pressing seat (1), a plunger (3) inserted into the top of the pressing cavity (11), a clamping piece (4) arranged in the pressing cavity (11), and a demolding seat (5) arranged at the bottom of the upper pressing seat (1); the upper pressing seat (1) is of an integral structure, the clamping piece (4) is used for clamping powder (6), the lower pressing seat (2) is used for closing the bottom of the pressing cavity (11) when the powder (6) is compacted, the demolding seat (5) is provided with a material removal channel (51), and the material removal channel (51) is used for allowing the clamping piece (4) to pass through, the clamping piece (4) being clamped with the compacted powder (6).

2. A powder compacting die as claimed in claim 1, characterised in that: The lower pressing seat (2) comprises a first bottom platform (21) and a first boss (22) vertically extending upwards at the top of the first bottom platform (21), the cross-sectional area of the first bottom platform (21) is greater than that of the first boss (22), the pressing cavity (11) comprises an upper die cavity (111) and a lower die cavity (112) in communication with each other, the cross-sectional area of the lower die cavity (112) is greater than that of the upper die cavity (111), the plunger (3) is inserted into the upper die cavity (111), the first boss (22) is in plug-fit cooperation with the lower die cavity (112), and the first bottom platform (21) is in abutment with the upper pressing seat (1).

3. A powder compacting die as claimed in claim 1, characterized in that: The clamping piece (4) comprises an upper gasket (41) and a lower gasket (42) arranged in the pressing cavity (11) in sequence from top to bottom, the powder (6) is arranged between the upper gasket (41) and the lower gasket (42), the plunger (3) acts on the upper gasket (41), and the lower pressing seat (2) is in abutment with the lower gasket (42).

4. A powder compacting die as claimed in claim 2, characterised in that: The demolding seat (5) comprises a first die seat (52) in cooperation with the pressing cavity (11) and a plurality of second die seats (53) connected in sequence, the first end of the second die seat (53) is connected with the first die seat (52), the material removal channel (51) comprises a first channel (511) arranged in the first die seat (52) and a second channel (512) arranged in the second die seat (53), and the second channel (512) is in communication with the first channel (511).

5. A powder compacting die as claimed in claim 4, characterised in that: The first die seat (52) comprises a second bottom platform (521) and a second boss (522) vertically extending upwards at the top of the second bottom platform (521), the cross-sectional area of the second bottom platform (521) is greater than that of the second boss (522), the second boss (522) is in plug-fit cooperation with the lower die cavity (112), and the second bottom platform (521) is in abutment with the upper pressing seat (1).

6. A powder compacting die as claimed in claim 5, characterised in that: The first die seat (52) further comprises a third boss (523) vertically extending downward at the bottom of the second base (521), the second die seat (53) is provided with a first insertion slot (531) at the top and a fourth boss (532) vertically extending downward at the bottom, and the third boss (523) and the fourth boss (532) are both inserted into the first insertion slot (531).

7. A powder compacting die as claimed in claim 6, characterised in that: The third boss (523) and the fourth boss (532) are both provided with a protrusion (524) at the outer periphery, the sidewall of the first insertion slot (531) is provided with a second insertion slot (533), and the protrusion (524) is inserted into the second insertion slot (533).

8. A powder compacting die as claimed in claim 7, characterised in that: The protrusion (524) is provided with a threaded hole (5241), the second die seat (53) is provided with a through hole (534) in communication with the second insertion slot (533), and the die withdrawing seat (5) further comprises a bolt (57) penetrating through the through hole (534) and being screwed with the threaded hole (5241).

9. A powder compacting die as defined in claim 1, characterized by: One side of the material withdrawing channel (51) is provided with a material taking opening (54), the material taking opening (54) is in communication with the outside, and the caliber of the material taking opening (54) gradually increases from inside to outside.

10. A powder compacting die as claimed in claim 9, characterised in that: The inner wall of the material withdrawing channel (51) and the material taking opening (54) is provided with a step (55) extending inward, and the die withdrawing seat (5) further comprises a material taking plate (56) arranged on the step (55).

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