CN113580471A

CN113580471A - Injection molding device for electric vehicle engine rotor

Info

Publication number: CN113580471A
Application number: CN202110897364.4A
Authority: CN
Inventors: 梅雨; 张武华; 陈聪
Original assignee: Wuhan Weilijia Auto Parts Co ltd
Current assignee: Wuhan Weilijia Auto Parts Co ltd
Priority date: 2021-08-05
Filing date: 2021-08-05
Publication date: 2021-11-02

Abstract

The invention relates to the technical field of rotor injection molding, and particularly discloses an electric vehicle engine rotor injection molding device which comprises an injection mold, an auxiliary device, an electric box and a connecting plate connected to one side of the injection mold and the auxiliary device, wherein the injection mold consists of a panel, a main hot runner, a hot runner plate, a water gap plate and a front template, and is connected with a rear guide sleeve in a combined manner through a guide post, a second limiting bolt, a protective sleeve and a front guide sleeve; the invention improves the production efficiency of the whole engine rotor installation by solving the problem of embedding the engine rotor, simultaneously places the product into the mold in a mold injection mode, and fixes the magnet in the rotor in an injection molding and glue injection mode, so that the whole production process is optimized, the production efficiency is improved, and meanwhile, the reject ratio can be reduced compared with the prior art, so that the production quality of the whole engine rotor can be further improved.

Description

Injection molding device for electric vehicle engine rotor

Technical Field

The invention relates to the technical field of rotor injection molding, in particular to an injection molding device for an engine rotor of an electric vehicle.

Background

In short, the fixed part of the motor is called stator, and the rotating part of the motor is called rotor, also called armature core, on which the pair of dc stationary main magnetic poles is located. The armature winding is arranged on the upper surface, and the armature winding generates induced electromotive force after being electrified to serve as a rotating magnetic field and can rotate so as to generate certain power.

With the great investment of the state in the new energy industry, the traditional automobile industry gradually shifts into the electric automobile industry. In the electric automobile industry, the most important parts are a battery and a motor, and the motor is the most important part for the whole electric automobile to normally run. The existing electric vehicle motor has a whole set of flow when the rotor is subjected to injection molding, wherein the most important flow is dispensing, the operation mode of dispensing can enable the magnet inside to be connected with the motor rotor more tightly, and the existing flow operation is generally to perform dispensing after the whole magnet is connected with the motor rotor. And the mode of using always is that the mode of manual point is glued fixes magnet, and such production efficiency is very slow, and the cost of labor is fairly high simultaneously, consequently is unfavorable for electric automobile's development. Therefore, an injection molding device for the rotor of the engine of the electric vehicle is provided.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides an injection molding device for an engine rotor of an electric vehicle, which is used for solving the problems in the background technology.

The injection molding device for the rotor of the electric vehicle engine comprises an injection mold, an auxiliary device, an electric box and a connecting plate connected to one side of the injection mold and the auxiliary device, wherein the injection mold consists of a panel, a main hot runner, a hot runner plate, a water gap plate and a front template and is connected with a rear guide sleeve in a combined manner through a guide post, a second limiting bolt, a protective sleeve and a front guide sleeve; the auxiliary device is positioned at the top of the electric box and is connected with the electric box through a bottom plate, the auxiliary device is composed of a transversely arranged straight plate, a first guide rail, a supporting block and a bearing main body, and the bearing main body is matched with the middle part of a panel at one end of the transversely arranged straight plate through a bearing rod and a bearing seat; the bottom of the electric box is arranged in a square shape, supporting cylinders are fixedly connected to the peripheral frames of the bottom of the electric box, and idler wheels are arranged among the four supporting cylinders; one side of connecting plate is connected with horizontal picture peg through spacing subassembly, and the opposite side of horizontal picture peg utilizes spacing subassembly to be connected with the backing plate, one side fixedly connected with mount pad of backing plate, the opposite side of backing plate is connected with No. two guide rails through supplementary guide rail seat.

Through the design of the technical scheme, the injection mold auxiliary device, the electronic box and the connecting plate are combined, stable injection molding operation can be performed on the engine rotor under the matching action of the guide rail, the supporting block and the bearing main body, the injection molding production efficiency of the engine rotor is improved, and the injection molding production quality of the engine rotor is also improved.

As a further improvement of the invention, one side of the bottom plate is provided with two side plates, one side of the two side plates is provided with an induction switch, the other side of the two side plates is provided with a servo motor, and an output shaft of the servo motor is fixedly connected with a synchronizing wheel.

Through the design of the technical scheme, the servo motor is matched with the synchronizing wheel, so that the two side plates can be matched with the induction switch to be opened and closed better, and the use is better.

As a further improvement of the invention, an upper synchronous belt fixing block and a lower synchronous belt fixing block are mounted on one side of the connecting plate, an induction sheet is mounted on the top of the upper synchronous belt fixing block and is positioned on one side of the second guide rail, a groove is formed in the outer side of the bottom of the mounting seat on one side of the connecting plate, a positioning block is mounted on the groove, a product and a glue sealing cover plate are sleeved on the positioning block and the mounting seat in a mutually matched mode, and the glue sealing cover plate is produced on the outer ring of the product.

Through the design of the technical scheme, the arranged glue sealing cover plate is utilized, the product can be sealed by matching with the arranged positioning block, the product can be better installed at the connecting plate, and the part which needs to be cancelled inside the product and can be convenient to use is injected and molded through the induction sheet.

As a further improvement of the invention, one side of the panel is provided with a heat insulation plate, the other side of the panel is connected with the main heat flow channel in an installing way, the panel is arranged in a square shape, and the upper frame and the lower frame of the panel are equally and correspondingly provided with grooves which are matched with the guide columns.

Through the design of the technical scheme, the heat insulation plates arranged are matched with the panel, and the gap part between the rotor and the magnet can be better filled with glue by the nozzle needle under the action of the main hot runner installation mode, so that the requirement of glue injection of the engine rotor is met.

As a further improvement of the invention, the frame of the hot runner plate is also provided with a groove corresponding to the frame of the panel, the top of the hot runner plate is provided with a hot runner junction box, and the other side of the hot runner junction box is provided with a first oil cylinder.

Through the design of the technical scheme, the hot runner junction box is matched with the first air cylinder, and the requirement for installing the whole hot runner plate can be met when the hot runner junction box is used in connection.

As a further improvement of the invention, a water gap needle is arranged between the water gap plate and the hot runner plate and is arranged in an annular shape, one end of the water gap needle is connected with a fixed plate and is matched with the main hot runner, and a first spring clamp and a second spring clamp are respectively arranged on one side of the hot runner plate and one side of the water gap plate.

Through the design of the technical scheme, the fixing plate which is arranged by the cooperation of the water gap needle can be matched with the main hot runner, and the water gap plate can be more tightly connected with the hot runner plate under the combined action of the first spring clamp and the second spring clamp.

As a further improvement of the invention, the front template is connected with the plate body of the nozzle plate through a first limit bolt, the middle part of the outer side frame of the front template is annularly connected with a projection which is arranged in a T shape and is matched with the frame of the nozzle plate, and the front surface of the front template is provided with a circular through hole which is matched with the nozzle needle.

Through the design of the technical scheme, the convex blocks are arranged, the nozzle plate is arranged in a matched mode, and the front template can be connected with the nozzle plate through a first limiting bolt when the front template is connected and used.

As a further improvement of the invention, a supporting plate is arranged at the bottom of the injection mold, four annular sizing blocks are arranged on one side of the supporting plate, an oil collecting plate is arranged between the four sizing blocks, a second oil cylinder is arranged on the outer side of the oil collecting plate in an annular manner, and a T-shaped block is fixedly connected to the outer side of a piston rod of the second oil cylinder.

Through the design of the technical scheme, the oil cylinder II is arranged, and the support plate and the elevator which are arranged in a matched mode can be used for enabling the injection mold to be stable when the oil cylinder is connected for use.

As a further improvement of the invention, the outer side of the sizing block is connected with a guide sleeve main body, the other end of the guide sleeve main body is provided with a rear template, one side of the rear template is provided with a shovel block which is connected in an annular manner, the middle part of the other end of the rear template is provided with a circular groove and is connected with two disc-shaped springs, and the other side of each disc-shaped spring is fixedly connected with a wear-resisting plate.

Through the design of the technical scheme, the wear-resisting plates can be matched with the disc springs in the arrangement, so that the whole elevator can be kept in a more stable use state when being connected for use.

As a further improvement of the wear-resisting plate, the other side of the wear-resisting plate is fixedly connected with a pressing block in an annular shape, the pressing block is arranged in a triangular cone shape, a pushing block is arranged on one side of the pressing block, and a rubber mat is fixedly connected to the block body of the pushing block.

Through the design of the technical scheme, the pressing block arranged is utilized, the pushing block arranged in a matched mode can enable the wear-resisting plates to be better combined under the abutting effect of the rubber mat.

Compared with the prior art, the invention has the following beneficial effects:

the invention solves the problem of embedding the engine rotor, thereby improving the production efficiency of the whole engine rotor installation, meanwhile, the product is placed in the mold in a mold injection molding mode, and the magnet in the rotor is fixed in an injection molding and glue injection mode, so that the whole production process is optimized, the production efficiency is improved, meanwhile, compared with the prior process, the method can reduce the reject ratio, further improve the production quality of the whole engine rotor, when glue is injected, the arranged nozzle needle can be matched with the arranged nozzle plate, under the connecting action between the injection mold auxiliary device and the electric box, the magnet can be injected and installed more quickly and better, thereby satisfied the use needs that electric motor car engine rotor was moulded plastics to reach and solve the same type product and all can solve the operation of fixed magnet when moulding plastics through this mode.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

FIG. 1 is a schematic view of a combination structure of an injection mold, an electric box and an auxiliary device according to the present invention;

FIG. 2 is a schematic view of an exploded structure of the injection mold of the present invention;

FIG. 3 is a schematic side view of the electrical box of the present invention;

FIG. 4 is a schematic view of an exploded construction of the support plate connection of the present invention;

fig. 5 is a schematic diagram of the connection explosion structure of the connecting plate.

In the figure: 01. injection molding a mold; 02. an auxiliary device; 03. an electric box; 04. a support plate; 05. a connecting plate; 101. a heat insulation plate; 102. a panel; 103. a guide post; 104. a hot runner junction box; 105. a first oil cylinder; 106. a hot runner plate; 107. a protective sleeve; 108. a water port needle; 109. a first spring clamp; 110. a front template; 111. a first limit bolt; 112. a front guide sleeve; 113. a water gap plate; 114. a rear guide sleeve; 115. a fixing plate; 116. a second spring clip; 117. a second limit bolt; 118. a main heat runner; 301. a base plate; 302. a synchronizing wheel; 303. a first guide rail; 304. a servo motor; 305. a side plate; 306. an inductive switch; 307. a bearing body; 308. a bearing seat; 309. a bearing rod; 310. a support block; 401. a second oil cylinder; 402. a guide sleeve main body; 403. a disc-shaped spring; 404. briquetting; 405. a push block; 406. a rubber pad; 407. a wear plate; 408. a rear template; 409. shoveling blocks; 410. a T-shaped block; 411. an oil collecting plate; 412. sizing block; 501. a lower synchronous belt fixing block; 502. an upper synchronous belt fixing block; 503. an induction sheet; 504. a transverse inserting plate; 505. a second guide rail; 506. an auxiliary guide rail seat; 507. a base plate; 508. positioning blocks; 509. producing a product; 510. sealing a glue cover plate; 511. a mounting seat; 512. and a limiting component.

Detailed Description

In the following description, for purposes of explanation, numerous implementation details are set forth in order to provide a thorough understanding of the various embodiments of the present invention. It should be understood, however, that these implementation details are not to be interpreted as limiting the invention. That is, in some embodiments of the invention, such implementation details are not necessary. In addition, some conventional structures and components are shown in simplified schematic form in the drawings.

In addition, the descriptions related to the first, the second, etc. in the present invention are only used for description purposes, do not particularly refer to an order or sequence, and do not limit the present invention, but only distinguish components or operations described in the same technical terms, and are not understood to indicate or imply relative importance or implicitly indicate the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

Example 1:

please refer to fig. 1: the invention relates to an injection molding device for an electric vehicle engine rotor, which comprises an injection mold 01, an auxiliary device 02, an electric box 03 and a connecting plate 05 connected to one side of the injection mold 01 and the auxiliary device 02, wherein the injection mold 01 consists of a panel 102, a main hot runner 118, a hot runner plate 106, a water gap plate 113 and a front template 110, and is connected with a rear guide sleeve 114 in a combined manner through a guide post 103, a second limit bolt 117, a protective sleeve 107 and a front guide sleeve 112; the auxiliary device 02 is positioned at the top of the electric box 03 and is connected with the electric box 03 through a bottom plate 301, the auxiliary device 02 consists of a transversely arranged straight plate, a first guide rail 303, a supporting block 310 and a bearing main body 307, and the bearing main body 307 is matched with the middle part of a panel 102 at one end of the transversely arranged straight plate through a bearing rod 309 and a bearing seat 308; the bottom of the electric box 03 is arranged in a square shape, supporting cylinders are fixedly connected to the peripheral frames of the bottom of the electric box 03, and idler wheels are arranged among the four supporting cylinders; one side of connecting plate 05 is connected with horizontal picture peg 504 through spacing subassembly 512, and the opposite side of horizontal picture peg 504 utilizes spacing subassembly 512 to be connected with backing plate 507, one side fixedly connected with mount pad 511 of backing plate 507, the opposite side of backing plate 507 is connected with No. two guide rails 505 through auxiliary guide rail seat 506, through the above-mentioned technical scheme design, utilize injection mold 01, auxiliary device 02, electronic box 03 and connecting plate 05's combined action, can be under the mating reaction of guide rail 303, supporting shoe 310 and bearing main part 307, the operation of moulding plastics that carries on stability to the engine rotor, the production efficiency that the engine rotor was moulded plastics has been improved, the production quality that the engine rotor was moulded plastics has also been improved.

Example 2:

referring to fig. 3, two side plates 305 are installed on one side of a bottom plate 301, an induction switch 306 is installed on one side of the two side plates 305, a servo motor 304 is installed on the other side of the bottom plate, and a synchronizing wheel 302 is fixedly connected to an output shaft of the servo motor 304.

Example 3:

please refer to fig. 5, an upper synchronous belt fixing block 502 and a lower synchronous belt fixing block 501 are installed on one side of a connecting plate 05, a sensing piece 503 is installed on the top of the upper synchronous belt fixing block 502 and is located on one side of a second guide rail 505, a groove is formed in the outer side of the bottom of a mounting seat 511 on one side of the connecting plate 05 and is installed with a positioning block 508, a product 509 and a sealing cover plate 510 are sleeved under the mutual matching of the positioning block 508 and the mounting seat 511, the sealing cover plate 510 is produced at the outer ring of the product 509, by the above technical scheme design, the product 509 can be better installed at the connecting plate 05 by using the arranged sealing cover plate 510 and matching with the arranged positioning block 508, and the part of the product 509 which needs to be cancelled can be conveniently injected by the sensing piece 503.

Example 4:

referring to fig. 2, a heat insulation board 101 is installed on one side of a panel 102, the other side of the panel 102 is installed and connected with a main heat channel 118, the panel 102 is arranged in a square shape, and an upper frame and a lower frame of the panel 102 are equally and correspondingly provided with grooves and are matched with guide posts 103, by the above technical scheme design, the arranged heat insulation board 101 is matched with the arranged panel 102, under the installation mode of the main heat channel 118, a water gap needle 108 can better inject glue into a gap part between a rotor and a magnet, so as to meet the requirement of glue injection of an engine rotor, the frame of a heat channel board 106 is also provided with grooves corresponding to the frame of the panel 102, a heat channel box 104 is installed on the top of the heat channel board 106, an oil cylinder 105 is installed on the other side of the heat channel box 104, by the above technical scheme design, the heat channel box 104 is matched with an air cylinder, when the connecting device is used, the requirement of installing the whole hot runner plate 106 can be met, a water gap needle 108 is installed between the water gap plate 113 and the hot runner plate 106, the water gap needles 108 are annularly arranged, one end of the water gap needle 108 is connected with a fixing plate 115 and is matched with a main hot runner 118, one side of the hot runner plate 106 and one side of the water gap plate 113 are respectively provided with a first spring clamp 109 and a second spring clamp 116, through the design of the technical scheme, the fixing plate 115 which is arranged by matching the arranged water gap needle 108 can be matched with the main hot runner 118, under the combined action of the first spring clamp 109 and the second spring clamp 116, the water gap plate 113 can be more tightly connected with the hot runner plate 106, the front template 110 is connected with a plate body of the water gap plate 113 through a first limit bolt 111, the middle part of an outer side frame of the front template 110 is annularly connected with a convex block which is arranged in a T shape, and with the frame looks adaptation of mouth of a river board 113, circular through-hole has been seted up on the front of front template 110, and with mouth of a river needle 108 looks adaptation, through the design of above-mentioned technical scheme, utilize the lug that sets up, the mouth of a river board 113 that the cooperation set up can be when connecting and using, utilize front template 110 to be connected with mouth of a river board 113 through a spacing bolt 111.

Example 5:

referring to fig. 4, a supporting plate 04 is installed at the bottom of an injection mold 01, four annular pads 412 are installed at one side of the supporting plate 04, an oil collecting plate 411 is installed between the four pads 412, a second oil cylinder 401 is installed at the outer side of the oil collecting plate 411 in an annular manner, a T-shaped block 410 is fixedly connected to the outer side of a piston rod of the second oil cylinder 401, by the above technical scheme design, the second oil cylinder 401 is utilized, the supporting plate 04 and an elevator are arranged in a matching manner, when in connection and use, the injection mold 01 can be stably used, a guide sleeve main body 402 is connected to the outer side of the pads 412, a rear template 408 is arranged at the other end of the guide sleeve main body 402, a shovel block 409 in an annular connection is installed at one side of the rear template 408, a circular groove is formed in the middle of the other end of the rear template 408, a disc spring 403 is connected to the middle of the disc spring 403, and a wear-resisting plate 407 is fixedly connected to the other side of the disc spring 403, through the design of the above technical scheme, the antifriction plate 407 that the dish spring 403 that utilizes to set up can cooperate the setting, make whole elevator keep more stable user state when connecting the use, antifriction plate 407's opposite side is cyclic annular fixedly connected with briquetting 404, and briquetting 404 is the setting of triangle taper, ejector pad 405 is installed to one side of briquetting 404, fixedly connected with cushion 406 is located to the block of ejector pad 405, through the design of above-mentioned technical scheme, utilize the briquetting 404 that sets up, the ejector pad 405 that the cooperation set up, can be under cushion 406's conflict effect, let better the making up of antifriction plate 407.

In the use of the invention:

firstly, a rotor to be subjected to injection molding is placed on one side of an auxiliary device 02, the auxiliary device 02 can transport the rotor to the inside of an injection mold 01 through an electric box 03, the rotor can be matched with a nozzle needle 108 through a nozzle plate 113 arranged in the inside of the injection mold 01, a product 509, namely the rotor can be fixed at a mounting seat 511 under the clamping action, glue to be subjected to injection molding is injected into the nozzle needle 108 through a hot runner plate and the action of a hot runner junction box 104 at the moment, the glue can be injected into a gap between a magnet and the rotor through the hot runner, the glue can be injected into the gap between the rotor through pressure in the process of being matched with the pushing of a first oil cylinder 105 and a second oil cylinder, the injection molding operation of the device is finished, and meanwhile, the whole device can be matched with the same type product 509 through matching, satisfy the needs that product 509 of the same type was moulded plastics, can avoid moreover that high pressure to penetrate to glue and lead to product 509 to warp, simultaneously, can let whole quality obtain improving, after the final injection is accomplished, open the mould and can take out product 509.

The above description is only an embodiment of the present invention, and is not intended to limit the present invention. Various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. Electric motor car engine rotor device of moulding plastics, including injection mold, auxiliary device, electronic box and connect the connecting plate in injection mold and auxiliary device one side, its characterized in that: the injection mold consists of a panel, a main hot runner, a hot runner plate, a nozzle plate and a front template, and is combined and connected with the rear guide sleeve through a guide post, a second limiting bolt, a protective sleeve and a front guide sleeve; the auxiliary device is positioned at the top of the electric box and is connected with the electric box through a bottom plate, the auxiliary device consists of a transversely arranged straight plate, a first guide rail, a supporting block and a bearing main body, and the bearing main body is matched with the middle part of a panel at one end of the transversely arranged straight plate through a bearing rod and a bearing seat; the bottom of the electric box is arranged in a square shape, supporting cylinders are fixedly connected to the four peripheral frames of the bottom of the electric box, and rollers are arranged among the four supporting cylinders; the connecting plate, one side of connecting plate is connected with horizontal picture peg through spacing subassembly, and the opposite side of horizontal picture peg utilizes spacing subassembly to be connected with the backing plate, one side fixedly connected with mount pad of backing plate, the opposite side of backing plate is connected with No. two guide rails through supplementary guide rail seat.

2. The electric vehicle engine rotor injection molding apparatus according to claim 1, characterized in that: two side plates are installed on one side of the bottom plate, an induction switch is installed on one side of each side plate, a servo motor is installed on the other side of each side plate, and a synchronizing wheel is fixedly connected to the output shaft of each servo motor.

3. The electric vehicle engine rotor injection molding apparatus according to claim 1, characterized in that: the utility model discloses a synchronous belt structure, including connecting plate, synchronous belt fixed block, locating piece, and outer lane department, synchronous belt fixed block and lower synchronous belt fixed block are installed to one side of connecting plate, the response piece is installed at the top of going up the synchronous belt fixed block, and is located one side of No. two guide rails, one side of connecting plate is located mount pad bottom outside department and has seted up the recess, and installs the locating piece, it has the product and seals the glue apron to cup joint under locating piece and the mount pad is mutually supported, it produces in the outer lane department of product to seal the glue apron.

4. The electric vehicle engine rotor injection molding apparatus according to claim 1, characterized in that: the heat insulation board is installed to one side of panel, the opposite side of panel links to each other with the installation of main hot runner, just the square setting that is of panel, and the upper frame of panel is equallyd corresponds with the lower frame and is seted up flutedly, and with guide post looks adaptation.

5. The electric vehicle engine rotor injection molding apparatus according to claim 1, characterized in that: the frame of the hot runner plate is also provided with a groove corresponding to the frame of the panel, the top of the hot runner plate is provided with a hot runner junction box, and the other side of the hot runner junction box is provided with a first oil cylinder.

6. The electric vehicle engine rotor injection molding apparatus according to claim 1, characterized in that: install the mouth of a river needle between mouth of a river board and the hot runner board, and this mouth of a river needle is cyclic annular arrangement setting, the one end of mouth of a river needle is connected with the fixed plate, and with main hot runner looks adaptation, a spring clamp and No. two spring clamps are installed respectively to one side of hot runner board and one side of mouth of a river board.

7. The electric vehicle engine rotor injection molding apparatus according to claim 1, characterized in that: the front template is connected with the plate body of the nozzle plate through a first limiting bolt, the middle part of the outer side frame of the front template is annularly connected with a lug arranged in a T shape and matched with the frame of the nozzle plate, and a circular through hole is formed in the front of the front template and matched with the nozzle needle.

8. The electric vehicle engine rotor injection molding apparatus according to claim 1, characterized in that: the bottom of injection mold installs the backup pad, four parallels that are cyclic annular setting are installed to one side of backup pad, four install the oil collecting plate between the parallels, the outside of oil collecting plate is cyclic annular and installs No. two hydro-cylinders, the piston rod outside fixedly connected with T type piece of No. two hydro-cylinders.

9. The electric vehicle engine rotor injection molding apparatus according to claim 8, characterized in that: the outside of parallels is connected with the uide bushing main part, just the other end of uide bushing main part is equipped with the back template, the shovel piece that is cyclic annular connection is installed to one side of back template, circular recess has been seted up at the other end middle part of back template, and is connected with the dish type spring, the dish type spring has two, just the opposite side fixedly connected with antifriction plate of dish type spring.

10. The electric vehicle engine rotor injection molding apparatus according to claim 9, characterized in that: the opposite side of antifriction plate is cyclic annular fixedly connected with briquetting, just the briquetting is the setting of triangle toper, the ejector pad is installed to one side of briquetting, the block department fixedly connected with cushion of ejector pad.