CN114290572A - A recycling and processing device that can be used for production waste of new energy vehicles - Google Patents

Abstract

The application discloses a recycling and processing device that can be used for production waste of new energy vehicles, comprising a base, a support leg, a fixing plate, a placing seat, a crushing shell, a crushing mechanism, a dust removal mechanism and a pressing mechanism; wherein the bottom surface of the base is A support leg is fixedly connected, a fixing plate is fixedly connected to the top side of the left end of the base, a placing seat is fixedly connected to the top side surface of the fixing plate, a crushing shell is fixedly connected to the top side surface of the placing seat, and the top side of the crushing shell is fixedly connected. A feeding shell is fixedly connected to the surface; the pulverizing mechanism includes a pulverizing motor, a pulverizing roller, a mincing knife, a filter plate and a filter hole, the pulverizing motor is fixedly connected to the right surface of the top of the pulverizing shell, and the output end of the pulverizing motor is connected to There is a crushing roller, the surface of the crushing roller is fixedly connected with a crushing knife, and the bottom side of the crushing knife is provided with a filter plate fixedly connected to the inner wall of the crushing shell. The recycling and processing device which can be used for production waste of new energy vehicles has a novel design and a simple structure.

Description

A recycling and processing device that can be used for new energy vehicle production waste

technical field

The present application relates to the technical field of recycling and processing waste from new energy vehicle production, in particular to a recycling and processing device that can be used for waste production of new energy vehicles.

Background technique

New energy vehicles refer to the use of unconventional vehicle fuels as the power source (or the use of conventional vehicle fuels, the use of new vehicle power units), and the integration of advanced technologies in vehicle power control and driving. Vehicles with new technologies and new structures, new energy vehicles include four major types of hybrid electric vehicles (HEV), pure electric vehicles (BEV, including solar vehicles), fuel cell electric vehicles (FCEV), other new energy sources (such as supercapacitors, Flywheel and other high-efficiency energy storage) automobiles, etc.

At present, there are many types of waste in the production of new energy vehicles, and some of the waste plastics produced by new energy vehicles are recycled by smashing. Increase the labor intensity of workers, reduce efficiency, and affect usage. Therefore, in view of the above problems, a recycling and processing device that can be used for the production waste of new energy vehicles is proposed.

SUMMARY OF THE INVENTION

In this embodiment, a recycling and processing device that can be used for new energy vehicle production waste is provided to solve the problem that there are many types of new energy vehicle production waste, and some waste plastics produced by new energy vehicles are recycled by smashing, and some waste plastics are recycled. The plastic crushing effect is not ideal, and waste plastics take up a lot of space after crushing, which is not convenient for workers to handle, increases the labor intensity of workers, reduces efficiency, and affects the use of problems.

According to one aspect of the present application, there is provided a recycling and processing device for new energy vehicle production waste, including a base, a support leg, a fixing plate, a placing seat, a crushing shell, a crushing mechanism, a dust removal mechanism, and a pressing mechanism; A support leg is fixedly connected to the bottom surface of the base, a fixing plate is fixedly connected to the top side of the left end of the base, a placing seat is fixedly connected to the top side surface of the fixing plate, and a crushing shell is fixedly connected to the top side surface of the placing seat. The top side surface of the crushing shell is fixedly connected with the feeding shell;

The pulverizing mechanism includes a pulverizing motor, a pulverizing roller, a mincing knife, a filter plate and a filter hole. The pulverizing motor is fixedly connected to the right side surface of the top of the pulverizing shell. The output end of the pulverizing motor is connected with a pulverizing roller. A crushing knife is fixedly connected to the surface, a filter plate fixedly connected to the inner wall of the crushing shell is arranged on the bottom side of the crushing blade, and filter holes are opened on the surface of the filter plate.

Further, the number of the support legs is four, and the four support legs are located at four corner positions on the bottom side surface of the base.

Further, an inclined seat is fixedly connected to the inner wall of the bottom side of the pulverizing shell, and the left end of the inclined seat is provided with a lower material shell that is fixedly connected to the bottom side of the pulverizing shell.

Further, the number of the mincing knives is several, and the several mincing knives are uniformly distributed in a ring shape on the outer surface of the mincing roller.

Further, the number of the filter holes is several, and the several filter holes are evenly distributed on the surface of the filter plate.

Further, the dust removal mechanism includes an air pump, a communication pipe, a filter shell, a filter screen, a material receiving drawer and an air suction pipe, the air pump is fixedly connected to the side surface of the top of the placing seat, and the filter shell is fixedly connected to the top of the crushing shell. On the side surface, the inner wall of the filter shell is fixedly connected with a filter screen, the bottom end of the filter screen is provided with a suction pipe fixedly connected to the right side of the filter shell, the end of the suction pipe is fixedly connected with the top of the crushing shell, and the bottom of the filter shell is fixedly connected. The positive side is slidably connected with a material receiving drawer, the top side of the filter screen is provided with a communication pipe fixedly connected to the top side of the filter shell, and the end of the communication pipe is fixedly communicated with the input end of the air pump.

Further, the extrusion mechanism includes an extrusion shell, an electric push rod, an extrusion plate, a limit seat and a hydraulic cylinder, the extrusion shell is fixedly connected to the right side of the fixing plate, and the electric push rod is fixedly connected to the fixed plate. On the left side of the plate, the output end of the electric push rod is fixedly connected to the extrusion plate that is slidingly connected to the inner cavity of the extrusion shell. The output end of the hydraulic cylinder on the side is fixedly connected.

Further, the top side surface of the pressing plate is slidably connected to the inner wall of the top side of the pressing shell, and the bottom side of the pressing plate is slidably connected to the top side surface of the limit seat, and the limit seat is slidably connected to the bottom of the squeeze shell. end wall.

Further, the number of the hydraulic cylinders is two, and the two hydraulic cylinders are located at two opposite positions at the bottom of the base.

Further, the top side of the extrusion shell is in fixed communication with the bottom end of the unloading shell, and the inner wall of the top side of the extrusion shell and the inner wall of the bottom end of the unloading shell are on the same horizontal plane.

Through the above-mentioned embodiments of the present application, a crushing mechanism, a dust removal mechanism and an extrusion mechanism are adopted, which solves the problem that some waste plastics produced by new energy vehicles are recycled by crushing. It is inconvenient for workers to handle, increases the labor intensity of workers, reduces efficiency, and affects the use of problems. It is convenient to pulverize the waste plastic in the pulverizing shell, and it is convenient to filter the waste through the filter hole to ensure the effect of waste pulverization. Improve the crushing quality and meet the needs of use. Under the action of the set dust removal mechanism, it is convenient to absorb the dust gas generated by crushing, and it is convenient to collect and process the filtered impurities, improve the quality of the surrounding environment of the workers, and ensure the health of the workers. , under the action of the set extrusion mechanism, it is convenient to extrude the waste plastic in the extrusion shell, reduce the occupied space of the crushed plastic, and facilitate the workers to carry out the extruded waste plastic transportation operation.

Description of drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the accompanying drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only These are some embodiments of the present application, and for those of ordinary skill in the art, other drawings can also be obtained from these drawings without any creative effort.

1 is a schematic diagram of the overall three-dimensional structure of an embodiment of the application;

2 is a schematic diagram of an overall front cross-sectional structure of an embodiment of the application;

FIG. 3 is a schematic diagram of a partially enlarged structure at the place A in the overall FIG. 2 of an embodiment of the application;

FIG. 4 is a schematic side cross-sectional structural diagram of an extrusion plate and a limiting seat according to an embodiment of the application;

5 is a schematic structural diagram of a side view of a mincing knife and a pulverizing roller according to an embodiment of the application;

6 is a schematic diagram of the surface structure of a filter plate according to an embodiment of the application;

FIG. 7 is a schematic view of a side sectional structure of a filter shell according to an embodiment of the application;

FIG. 8 is a schematic diagram of the structure of the bottom surface of the base according to an embodiment of the present application.

In the figure: 1. Base; 2. Supporting legs; 3. Fixed plate; 4. Placement seat; 5. Crushing shell; 6. Feeding shell; 7. Crushing motor; 8. Crushing roller; 9. Crushing knife; 10 , filter plate; 1001, filter hole; 11, inclined seat; 12, lowering shell; 13, suction pipe; 14, filter shell; 15, material receiving drawer; 16, filter screen; 17, connecting pipe; 18, suction pump ; 19, hydraulic cylinder; 20, limit seat; 21, extrusion shell; 22, electric push rod; 23, extrusion plate.

Detailed ways

In order to make those skilled in the art better understand the solutions of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only The embodiments are part of the present application, but not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the scope of protection of the present application.

It should be noted that the terms "first", "second", etc. in the description and claims of the present application and the above drawings are used to distinguish similar objects, and are not necessarily used to describe a specific sequence or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances for the embodiments of the application described herein. Furthermore, the terms "comprising" and "having" and any variations thereof, are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those expressly listed Rather, those steps or units may include other steps or units not expressly listed or inherent to these processes, methods, products or devices.

In this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", The orientation or positional relationship indicated by "vertical", "horizontal", "horizontal", "longitudinal", etc. is based on the orientation or positional relationship shown in the drawings. These terms are primarily used to better describe the present application and its embodiments, and are not intended to limit the fact that the indicated device, element, or component must have a particular orientation, or be constructed and operated in a particular orientation.

In addition, some of the above-mentioned terms may be used to express other meanings besides orientation or positional relationship. For example, the term "on" may also be used to express a certain attachment or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in the present application can be understood according to specific situations.

Furthermore, the terms "installed", "set up", "provided with", "connected", "connected", "socketed" should be construed broadly. For example, it may be a fixed connection, a detachable connection, or a unitary structure; it may be a mechanical connection, or an electrical connection; it may be directly connected, or indirectly connected through an intermediary, or between two devices, elements, or components. internal communication. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific situations.

It should be noted that the embodiments in the present application and the features of the embodiments may be combined with each other in the case of no conflict. The present application will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

The recovery processing device in this embodiment can be applied to various air suction pumps. For example, in this embodiment, the following vacuum suction pump for a food vacuum storage tank is provided, and the recycling processing device in this embodiment can be used for placing The air pump is as follows.

A vacuum pump for a food vacuum storage tank includes a base, the top of the base is provided with two rectangular grooves, the surrounding inner walls of the rectangular grooves are in contact with the same rectangular plate, and the tops of the two rectangular plates are welded with the same Mounting plate, the top of the mounting plate is fixedly connected with the main body of the air pump, the base is provided with an L-shaped hole, and the L-shaped hole is slidably installed with a first linkage plate and a second linkage plate, and one side of the first linkage plate is welded with a square. A plurality of springs are welded between the square plate and the base, a first clamping plate is welded on the top of one side of the square plate, a square groove with an opening at the top is opened on one inner wall of the L-shaped hole, and the bottom inner wall of the square groove is There is a turning groove, a rotating shaft is installed in the turning groove, a horizontal plate is welded on the top of one side of the second linkage plate, an extrusion block is welded on one side of the horizontal plate, and an annular groove is opened on the outer side of the rotating shaft. The inner wall of the groove is in close contact, the top of the base is provided with a chute, a slide plate is slidably installed in the chute, the top of the slide plate is welded with a second card plate, the outer side of the rotating shaft is fixedly sleeved with a gear, and the front side of the second card plate is welded with a The rack, the gear meshes with the rack, the sides of the two rectangular plates away from each other are respectively provided with a plurality of first card slots and a plurality of second card slots, the first card plate and the second card plate are connected to the uppermost The first card slot and the second card slot are installed together.

Preferably, the L-shaped hole is filled with hydraulic oil located between the first linkage plate and the second linkage plate.

Preferably, a handle is welded on one side of the square plate to facilitate pulling the square plate.

Preferably, the number of the springs is five, and the five springs are arranged at equal intervals, so that the square plate can be returned to its original position.

Preferably, the plurality of first clamping grooves and the plurality of second clamping grooves located on the same vertical axis are arranged at equal intervals, so that the main body of the air suction pump can be fixed at different heights.

Preferably, the sliding plate is in contact with one side inner wall of the chute.

The above-mentioned vacuum pump for food vacuum storage tank is a Chinese utility model patent (application number is CN202020095616.2), wherein the above-mentioned air pump is installed on the top side of the seat 4 in the application document, which is convenient for the use of the air pump.

Of course, this embodiment can also be used to place sampling tubes of other structures. Without repeating them one by one, the recycling processing device of the embodiment of the present application will be introduced below.

Please refer to Figures 1-8, a recycling and processing device that can be used for new energy vehicle production waste, including a base 1, a supporting leg 2, a fixing plate 3, a placing seat 4, a crushing shell 5, a crushing mechanism, a dust removal mechanism, and a crushing mechanism. Pressing mechanism; wherein the bottom surface of the base 1 is fixedly connected with a support leg 2, the top side of the left end of the base 1 is fixedly connected with a fixing plate 3, and the top surface of the fixing plate 3 is fixedly connected with a placing seat 4, the placing A crushing shell 5 is fixedly connected to the top side surface of the seat 4, and a feeding shell 6 is fixedly connected to the top side surface of the crushing shell 5;

The pulverizing mechanism includes a pulverizing motor 7, a pulverizing roller 8, a mincing knife 9, a filter plate 10 and a filter hole 1001. The pulverizing motor 7 is fixedly connected to the top right surface of the pulverizing shell 5, and the output end of the pulverizing motor 7 is connected to There is a crushing roller 8, the surface of the crushing roller 8 is fixedly connected with a crushing knife 9, and the bottom side of the crushing knife 9 is provided with a filter plate 10 that is fixedly connected to the inner wall of the crushing shell 5, and the surface of the filter plate 10 is provided with a filter plate 10. Hole 1001.

The number of the support legs 2 is four, and the four support legs 2 are located at the four corner positions of the bottom side surface of the base 1, so that the base 1 can be stably supported by the support legs 2; the bottom inner wall of the crushing shell 5 is fixedly connected There is an inclined seat 11, and the left end of the inclined seat 11 is provided with a lowering shell 12 fixedly connected to the bottom side of the pulverizing shell 5, which is convenient for cutting; The outer surface of the crushing roller is evenly distributed in a ring shape, which is convenient for crushing; the number of the filter holes 1001 is several, and the several filter holes 1001 are evenly distributed on the surface of the filter plate 10, which is convenient for filtering; the dust removal mechanism includes an air pump 18 , the connecting pipe 17, the filter shell 14, the filter screen 16, the material receiving drawer 15 and the suction pipe 13, the suction pump 18 is fixedly connected to the top side surface of the placing seat 4, and the filter shell 14 is fixedly connected to the top side of the crushing shell 5 On the surface, the inner wall of the filter shell 14 is fixedly connected with a filter screen 16, the bottom end of the filter screen 16 is provided with a suction pipe 13 that is fixedly connected to the right side of the filter shell 14, and the end of the suction pipe 13 is fixedly connected to the top of the crushing shell 5. , the bottom end of the filter shell 14 is slidably connected to the receiving drawer 15, the top side of the filter screen 16 is provided with a communication pipe 17 fixedly connected to the top side of the filter shell 14, and the end of the communication pipe 17 is input with the air pump 18. The ends are fixed and connected, which is convenient for absorbing and processing the dust gas generated by crushing, and is convenient for collecting and processing the filtered impurities, improving the quality of the surrounding environment of the workers, and ensuring the health of the workers. The extrusion mechanism includes an extrusion shell 21, an electric motor The push rod 22 , the squeeze plate 23 , the limit seat 20 and the hydraulic cylinder 19 , the squeeze shell 21 is fixedly connected to the right side of the fixed plate 3 , the electric push rod 22 is fixedly connected to the left side of the fixed plate 3 , the The output end of the electric push rod 22 is fixedly connected to the extrusion plate 23 which is slidingly connected to the inner cavity of the extrusion shell 21 , the bottom side of the extrusion plate 23 is provided with a limit seat 20 , and the bottom end of the limit seat 20 is fixed on the base 1 . The output end of the hydraulic cylinder 19 on the bottom side is fixedly connected, which facilitates the extrusion of the waste plastic in the extrusion shell 21, reduces the space occupied by the crushed plastic, and facilitates the transport operation of the waste plastic after extrusion; The top side surface of the pressing plate 23 is slidably connected with the top side inner wall of the extrusion shell 21 , the bottom side of the extrusion plate 23 is slidably connected with the top side surface of the limit seat 20 , and the limit seat 20 is slidably connected to the bottom of the extrusion shell 21 The inner wall of the end is convenient for the use of the extrusion plate 23; the number of the hydraulic cylinders 19 is two, and the two hydraulic cylinders 19 are located at two opposite positions at the bottom of the base 1, which is convenient for the use of the hydraulic cylinder 19; the extrusion shell 21 The top side is in fixed communication with the bottom end of the feeding shell 12, and the inner wall of the top side of the extrusion shell 21 and the inner wall of the bottom end of the feeding shell 12 are on the same level, which is convenient for use.

When the present invention is in use, the electrical components appearing in this application are all connected to an external power supply and a control switch. The waste plastics are placed in the crushing shell 5 through the feeding shell 6, and the crushing motor 7 is driven by the activated crushing motor 7. The crushing roller 8 rotates, and the crushing roller 8 drives the crushing knife 9 fixedly connected to the surface to rotate, and the crushing knife 9 further crushes the waste plastics, and filters the waste plastics with small volume through the filter holes 1001 on the surface of the filter plate 10. During the pulverization process, the air suction pump 18 is started, the air suction pump 18 generates a negative pressure on the inner cavity of the filter shell 14 through the communication pipe 17, and the filter shell 14 extracts the gas in the pulverized shell 5 through the air suction pipe 13, and the sucked gas passes through The exhaust pipe 13 sucks the dust into the filter shell 14, and the impurities are filtered through the filter screen 16 to ensure that the discharged gas is clean, avoid the dust gas from floating out, and improve the surrounding air quality. In the pressing shell 21, after the pulverization is completed, the electric push rod 22 is activated, and the electric push rod 22 pushes the fixedly connected pressing plate 23 to move, and the pressing plate 23 further compresses the waste in the pressing shell 21, saving the occupied space, And the electric push rod 22 is activated, and the electric push rod 22 drives the limit seat 20 to push out the compressed waste, which is convenient for workers to operate and handle, and meets the needs of workers.

The benefits of this application are:

1. This kind of recycling and processing device that can be used for production waste of new energy vehicles has a novel design and a simple structure, which is convenient for crushing the waste plastic in the crushing shell 5, and is convenient for filtering the waste through the filter hole 1001, so as to ensure the effect of waste crushing and improve the The crushing quality meets the needs of use.

2. When in use, under the action of the set dust removal mechanism, it is convenient to absorb the dust gas generated by crushing, to collect and process the filtered impurities, to improve the quality of the surrounding environment of the workers, to ensure the health of the workers, and to facilitate the use.

3. During use, under the action of the set extrusion mechanism, it is convenient to squeeze the waste plastic in the extrusion shell 21, reduce the space occupied by the crushed plastic, and facilitate the transportation of the squeezed waste plastic by workers. Operation, practical value is high, suitable for promotion and use.

The related circuits, electronic components and modules are all in the prior art, which can be fully realized by those skilled in the art. It is needless to mention that the content of the protection of the present application does not involve the improvement of software and methods.

The above descriptions are only preferred embodiments of the present application, and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this application shall be included within the protection scope of this application.

Claims (10)

1. The utility model provides a recovery processing device that can be used to new forms of energy car production waste material which characterized in that: comprises a base (1), supporting legs (2), a fixed plate (3), a placing seat (4), a crushing shell (5), a crushing mechanism, a dust removing mechanism and an extruding mechanism; the device comprises a base (1), a support leg (2) and a fixing plate (3), wherein the support leg (2) is fixedly connected to the surface of the bottom side of the base (1), the fixing plate (3) is fixedly connected to the top side of the left end of the base (1), a placing seat (4) is fixedly connected to the surface of the top side of the fixing plate (3), a crushing shell (5) is fixedly connected to the surface of the top side of the placing seat (4), and a feeding shell (6) is fixedly communicated with the surface of the top side of the crushing shell (5);

rubbing machine constructs including rubbing crusher motor (7), crushing roller (8), rubbing sword (9), filter (10) and filtration pore (1001), rubbing crusher motor (7) fixed connection is on rubbing crusher shell (5) top right side surface, rubbing crusher motor (7) output is connected with rubbing crusher roller (8), rubbing crusher roller (8) fixed surface is connected with rubbing sword (9), rub sword (9) bottom side and be provided with filter (10) of fixed connection at rubbing crusher shell (5) inner wall, filtration pore (1001) have been seted up on filter (10) surface.

2. The recycling device for the waste materials in the new energy vehicle according to claim 1, wherein: the number of the supporting legs (2) is four, and the four supporting legs (2) are positioned at four corner positions of the bottom side surface of the base (1).

3. The recycling device for the waste materials in the new energy vehicle according to claim 1, wherein: the crushing shell (5) is characterized in that an inclined seat (11) is fixedly connected to the inner wall of the bottom side of the crushing shell (5), and a blanking shell (12) fixedly communicated with the bottom side of the crushing shell (5) is arranged at the left end of the inclined seat (11).

4. The recycling device for the waste materials in the new energy vehicle according to claim 1, wherein: the number of the mincing knives (9) is a plurality, and the plurality of the mincing knives (9) are annularly and uniformly distributed on the outer side surface of the mincing roller.

5. The recycling device for the waste materials in the new energy vehicle according to claim 1, wherein: the number of the filter holes (1001) is a plurality, and the filter holes (1001) are uniformly distributed on the surface of the filter plate (10).

6. The recycling device for the waste materials in the new energy vehicle according to claim 1, wherein: the dust removing mechanism comprises an air extracting pump (18), a communicating pipe (17), a filter shell (14), a filter screen (16), a material receiving drawer (15) and an air extracting pipe (13), the air pump (18) is fixedly connected on the top surface of the placing seat (4), the filter shell (14) is fixedly connected on the top surface of the crushing shell (5), a filter screen (16) is fixedly connected with the inner wall of the filter shell (14), an air exhaust pipe (13) fixedly communicated with the right side of the filter shell (14) is arranged at the bottom end of the filter screen (16), the tail end of the air suction pipe (13) is fixedly communicated with the top end of the crushing shell (5), the positive side of the bottom end of the filtering shell (14) is connected with a material receiving drawer (15) in a sliding way, a communicating pipe (17) fixedly communicated with the top side of the filter shell (14) is arranged on the top side of the filter screen (16), the tail end of the communicating pipe (17) is fixedly communicated with the input end of the air suction pump (18).

7. The recycling device for the waste materials in the new energy vehicle according to claim 1, wherein: extrusion mechanism is including extruding shell (21), electric putter (22), stripper plate (23), spacing seat (20) and pneumatic cylinder (19), extruding shell (21) fixed connection is on fixed plate (3) right side, electric putter (22) fixed connection is on fixed plate (3) left side, electric putter (22) output and extrusion shell (21) inner chamber sliding connection's stripper plate (23) fixed connection, stripper plate (23) bottom side is provided with spacing seat (20), spacing seat (20) bottom and the pneumatic cylinder (19) output fixed connection who fixes at base (1) bottom side.

8. The recycling device for the waste materials in the new energy vehicle according to claim 7, wherein: the surface of the top side of the extrusion plate (23) is in sliding connection with the inner wall of the top side of the extrusion shell (21), the bottom side of the extrusion plate (23) is in sliding connection with the surface of the top side of the limiting seat (20), and the limiting seat (20) is in sliding connection with the inner wall of the bottom end of the extrusion shell (21).

9. The recycling device for the waste materials in the new energy vehicle according to claim 7, wherein: the number of the hydraulic cylinders (19) is two, and the two hydraulic cylinders (19) are located at two opposite positions of the bottom of the base (1).

10. The recycling device for the waste materials in the new energy vehicle according to claim 7, wherein: the top side of the extrusion shell (21) is fixedly communicated with the bottom end of the blanking shell (12), and the inner wall of the top side of the extrusion shell (21) and the inner wall of the bottom end of the blanking shell (12) are on the same horizontal plane.

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