CN115346725A - Electricity core production facility - Google Patents

Abstract

The invention is suitable for the field of electric wire production, and provides a cell production device which is used for producing a cell of an electric wire, wherein the cell comprises a fixed conduit and granular conductive media filled in the fixed conduit, and the fixed conduit is made of extrusion molding materials; the battery cell production equipment comprises: the filling unit comprises an extrusion die pipe and a first screw rod, and the first screw rod rotates to extrude the conductive medium in the extrusion die pipe and move out through a first extrusion port; the extrusion molding unit comprises a melting part, a machine head mouth mold and a forming part, wherein the melting part conveys the melted extrusion molding material to the machine head mouth mold, the forming part comprises a conveying pipe and a cooling structure, the conveying pipe is tubular and is sleeved on the outer peripheral side of an extrusion mold pipe, and the conveying pipe is provided with a second extrusion opening; wherein the first extrusion opening and the second extrusion opening are arranged in a coplanar manner. The battery cell production equipment provided by the invention can realize the effect of extruding and fixing the guide pipe and filling the conductive medium.

Description

Cell Production Equipment

technical field

The invention belongs to the technical field of electric wire production equipment, and more specifically relates to a battery production equipment.

Background technique

In order to improve the metal fatigue problem caused by repeated movement or bending of wires, the utility model patent application number 201921665233.8 discloses a wire, including a battery cell and a connection structure. The battery core includes a fixed conduit and a conductive medium. The fixed catheter is made of flexible material, and the fixed catheter extends forward and backward and has an accommodation cavity that runs through the front and rear; the conductive medium is composed of a plurality of granular conductive particles that fill the accommodation cavity; part and the second connecting part, the first connecting part and the second connecting part are made of conductive material and abut against the conductive medium; wherein, each conductive particle is used to receive the current from the first connecting part and transfer it to The second connection part or passes the current from the second connection part to the first connection part.

For the electric core of the above-mentioned electric wire, because the conductive medium is granular, it is difficult to produce and prepare the electric core with the existing extruder.

Contents of the invention

The purpose of the present invention is to overcome the shortcomings of the above-mentioned prior art, and provide a cell production equipment, which is intended to produce cells composed of a fixed conduit and a conductive medium.

In order to achieve the above object, the embodiment of the present invention provides the following technical solutions:

A kind of electric core production equipment, used for producing the electric core of electric wire, described electric core comprises fixed conduit and the conductive medium that fills in described fixed conduit, and described fixed conduit is made of extruded material, and described conductive medium is Granular; the cell production equipment includes:

The filling unit includes an extrusion die tube and a first screw built in the extrusion die tube, the extrusion die tube is used for the insertion of the conductive medium and has a first extrusion port for the removal of the conductive medium, so The first screw rotates to squeeze the conductive medium located in the extrusion die tube and push out the extrusion die tube through the first extrusion port;

The extrusion unit includes a melting part, a nose die and a forming part. The melting part is used for inserting the extrusion material and melting the extrusion material and transporting the melted extrusion material to the The head die, the forming part includes a delivery pipe connected to the head die, and a cooling structure for cooling the extruded material in the delivery pipe, the delivery pipe is tubular and sleeved On the outer peripheral side of the extrusion die pipe, the delivery pipe has a second extrusion port away from the die of the die;

Wherein, the first extrusion port and the second extrusion port are coplanar, the extrusion material is extruded through the second extrusion port to form the fixed conduit, and the conductive medium is formed in the first extrusion port. The outlet is extruded and filled in the fixed conduit.

Optionally, the nose die is sleeved on the outer peripheral side of the extrusion die tube and has an annular first cavity, and the first cavity communicates with the delivery pipe and the melting part.

Optionally, the outer cavity wall of the first cavity and the inner tube wall of the delivery tube are arranged coaxially and with equal diameters.

Optionally, the melting part includes a sleeve sleeved outside the extrusion die tube, and a second screw disposed between the sleeve and the extrusion die tube, the second screw rotates And drive the extruded material to move to the die of the die.

Optionally, the first screw and the second screw are arranged coaxially and have a constant ratio of rotational angular velocity.

Optionally, the total volume of the conductive medium extruded from the first extrusion port per unit time is not less than the volume of the internal space enclosed by the fixed conduit extruded from the second extrusion port.

Optionally, the cross-sectional dimensions of the delivery pipe and the casing are the same;

The first screw and the second screw satisfy: P1*W1>P2*W2, P1 is the pitch of the first screw, W1 is the angular velocity of the first screw, and P2 is the pitch of the second screw , W2 is the angular velocity of the second screw.

Optionally, the filling unit includes a material box, the material box has a material storage chamber for accommodating the conductive medium, the material storage cavity communicates with the extrusion die tube, and the material storage cavity The volume can be adjusted according to the volume of the conductive medium located in the magazine.

Optionally, the material box is provided with an air suction port, and an air suction pump is provided at the air suction port.

Optionally, the air suction port is provided with a filter screen.

Optionally, the material box is arranged above the extrusion die tube, and the section along the height direction of the material box is corrugated extending up and down.

The cell production equipment provided by the present invention can prepare cells composed of a granular conductive medium and a fixed conduit. Through the cooperative arrangement of the filling unit and the extrusion unit, the effect of filling the conductive medium while extruding the fixed conduit is realized.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the accompanying drawings that need to be used in the descriptions of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only of the present invention. For some embodiments, those of ordinary skill in the art can also obtain other drawings based on these drawings without paying creative efforts.

Fig. 1 is the structural representation of electric wire in the embodiment of the present invention;

Fig. 2 is a schematic structural view of the cell production equipment provided by the embodiment of the present invention, which is a cross-sectional view;

Fig. 3 is a schematic structural view of the extrusion unit and the filling unit in the embodiment of the present invention, which is a cross-sectional view;

FIG. 4 is an enlarged view of part A in FIG. 2 .

Wherein, each reference sign in the figure:

10. Electric wire; 11. Fixed conduit; 12. Conductive medium; 13. First connector; 14. Second connector; 20. Filling unit; 21. Extrusion die tube; 201. First extrusion port; 22. Second 1 screw; 23, material box; 202, air suction port; 30, extrusion unit; 31, melting part; 311, casing; 312, second screw; , forming part; 331, conveying pipe; 301, second extrusion port; 332, cooling structure; 34, silo.

Detailed ways

In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

It should be noted that when an element is referred to as being “fixed” or “disposed on” another element, it may be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

It is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "top", "bottom", "inner", "outer" etc. indicate an orientation or The positional relationship is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, Therefore, it should not be construed as limiting the invention.

In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features.

Please refer to FIG. 2 to FIG. 4 , the cell production equipment provided by the present application is now described as an example. The cell production equipment provided in this embodiment is used for producing cells of the electric wire 10 .

Please refer to FIG. 1 , the electric wire 10 includes an electric core and a connecting structure. For ease of description, the extending direction of the electric wire 10 is defined as the front-rear direction. The electric core includes a fixed conduit 11 and a conductive medium 12 . The fixed conduit 11 is made of a flexible material, and the fixed conduit 11 extends forward and backward and has an accommodating cavity through the front and back; the conductive medium 12 is composed of a plurality of granular conductive particles filling the accommodating cavity; The first connecting piece 13 and the second connecting piece 14, the first connecting piece 13 and the second connecting piece 14 are all made of conductive material and abut against the conductive medium 12; The current from the connecting piece 13 is passed to the second connecting piece 14 or the current from the second connecting piece 14 is passed to the first connecting piece 13 .

The fixing conduit 11 and the connecting structure are enclosed to fix the conductive particles, and the connecting structure and the conductive particles together form a structure for conducting electricity to realize the function of conducting electricity. Since the conductive medium 12 is in the form of particles, when the fixed catheter 11 is deformed under pressure, each conductive particle can move adaptively to adapt to the change of the fixed catheter 11 . Therefore, using granular conductive particles as the conductive medium 12 can solve the problem of conductor damage due to reciprocating motion.

In this embodiment, the conductive medium 12 is a mixture of conductive balls and graphite powder. The conductive ball is spherical. The conductive balls are all made of copper, aluminum, steel and other metal materials with excellent conductivity, or composite materials such as conductive plastics and conductive rubber, or solid solution alloy materials, such as gallium indium alloy. Graphite powder is filled between the housing cavity and the conductive ball. On the one hand, it plays the role of conduction. The graphite powder and the conductive ball form a conductor together to fill the entire housing cavity to ensure smooth current conduction. On the other hand, it can play the role of lubrication and support. The graphite powder and the conductive ball jointly provide support for the fixed conduit 11, thereby reducing stress concentration when the fixed conduit 11 is under pressure. The addition of graphite powder can reduce the rolling friction of the conductive balls, so that each conductive ball can make corresponding shape adjustments according to the external force faster.

In this embodiment, the fixed conduit 11 is made of rubber material and has certain elasticity.

The battery cell production equipment provided in this embodiment is used to produce the battery cell of the electric wire 10. After the battery cell is prepared, the two ends of the battery cell are respectively connected to the first connector 13 and the second connector 14 by plugging or other means, The production of the electric wire 10 is completed.

Please refer to FIG. 2 and FIG. 3 , in this embodiment, the cell production equipment includes an extrusion unit 30 and a filling unit 20 . The extrusion unit 30 is used for preparing the fixed conduit 11 , and the filling unit 20 is used for filling the conductive medium 12 in the fixed conduit 11 .

The filling unit 20 includes an extrusion die tube 21 and a first screw 22 built in the extrusion die tube 21. The extrusion die tube 21 has a feed opening for the conductive medium 12 to be inserted and a first extruder for the conductive medium 12 to move out. Outlet 201 , the first screw 22 rotates to squeeze the conductive medium 12 inside the extrusion die tube 21 and push it out of the extrusion die tube 21 through the first extrusion port 201 . In the structure shown in the figure, the extrusion die tube 21 and the first screw 22 extend forward and backward, and the discharge port is opened on the side surface of the extrusion die tube 21 and communicates with the material box 23 for loading the conductive medium 12 . The first extrusion port 201 is disposed on the front end surface of the first screw 22 in the extending direction. The first screw 22 rotates to push the conductive medium 12 in the extrusion die tube 21 forward to the first extrusion port 201 .

The extrusion unit 30 includes a melting part 31, a die 32 and a molding part 33. The melting part 31 is used for inserting and melting the extruded material and transporting the melted extruded material to the die 32 of the die. The forming part 33 includes a conveying pipe 331 connected to the die 32 of the machine head, and a cooling structure 332 for cooling the extruded material in the conveying pipe 331. The conveying pipe 331 is tubular and sleeved on the outer peripheral side of the extrusion die pipe 21 , the delivery pipe 331 has a second extrusion port 301 facing away from the die 32 of the die.

Wherein, the first extrusion port 201 and the second extrusion port 301 are arranged on the same plane, the extrusion material is extruded from the second extrusion port 301 to form the fixed conduit 11, and the conductive medium 12 is extruded from the first extrusion port 201 to fill the fixed conduit within 11.

It can be understood that the extrusion unit 30 also includes a silo 34 . The extruded material is rubber granules, and the extruded material is placed in the feed bin 34 . The melting part 31 includes a sleeve 311 and a second screw 312 disposed between the sleeve 311 and the extrusion die tube 21 . The opening at the lower end of the silo 34 communicates with the casing 311 . The extruded material enters the casing 311 through the opening at the lower end of the bin 34 , and the second screw 312 rotates to drive the extruded material to move toward the die 32 of the machine head. During the moving process, the extruded material is melted in the high temperature environment of the melting part 31 and is in a molten state when reaching the die 32 of the machine head. The extrusion material in the molten state is transferred to the conveying pipe 331 through the die 32 of the machine head, and the conveying pipe 331 and the extrusion die pipe 21 jointly limit the molding space of the extruded material, and is cooled and plasticized under the cooling effect of the cooling structure 332 , and finally removed through the second extrusion port 301.

In this embodiment, the conveying pipe 331 is a single-layer pipe and is sheathed on the outer peripheral side of the extrusion die pipe 21 , and the conveying pipe 331 and the extrusion die pipe 21 together form a molding space for the extruded material. In other embodiments, the conveying pipe 331 can also be a double-layer casing nested inside and outside, the inner pipe is sleeved on the outside of the extrusion die tube 21, the outer tube is sleeved on the outside of the inner tube and forms an extrusion joint together with the inner tube. The molding space of the plastic material.

It should be noted that the cooling structure 332 can cool the extruded material in the delivery pipe 331 by means of air cooling and/or water cooling, and the specific structure of the cooling structure 332 is not limited. The high-temperature environment of the melting part 31 is provided by an electromagnetic heater, which is an existing design, and will not be repeated here. Generally, the second screw 312 is divided into a conveying section, a compression section and a metering section from the rear to the front along the length direction. The conveying section is mainly used for conveying extruded materials, and also takes into account the effects of preheating and compression. The volume of the screw channel in the compression section gradually decreases from large to small, and the temperature must reach the degree of plasticization of the material. The extruded material is compressed and plasticized in the compression section, and then enters the metering section. The metering section is kept at or slightly higher than the plasticizing temperature, and can be accurately metered, and quantitatively delivered to the die 32 of the machine head.

In this embodiment, the inside of the extrusion die tube 21 is the delivery channel for the conductive medium 12 , and the first extrusion port 201 limits the output cross-sectional area of the conductive medium 12 . The conveying pipe 331 is sleeved on the outer peripheral side of the extrusion die pipe 21, and the pipe wall of the conveying pipe 331 and the outer surface of the extrusion die pipe 21 jointly define the molding space of the extruded material. Pushed by the second screw 312, the extruded After the plastic material is plasticized, it is extruded at the second extrusion port 301 to form a fixed conduit 11. The fixed conduit 11 is tubular, and the inner surface of the fixed conduit 11 is the same diameter as the outer surface of the extrusion die tube 21. It is the same as the diameter of the inner tube wall of the delivery tube 331 . The first extrusion port 201 and the second extrusion port 301 are in the same plane, the extrusion material is plasticized and extruded at the second extrusion port 301 to form the fixed conduit 11, and the conductive medium 12 is filled into the fixed conduit 11 in time when the fixed conduit 11 is formed , realize the effect of filling the conductive medium 12 while extruding the fixed conduit 11 , improve the filling efficiency and at the same time facilitate the uniform filling effect of the conductive medium 12 in the fixed conduit 11 .

From the above, the cell production equipment provided in this embodiment can produce cells composed of granular conductive medium 12 and fixed conduit 11, and through the cooperative arrangement of filling unit 20 and extrusion unit 30, the fixed conduit 11 can be extruded The effect of filling the conductive medium 12 at the edge.

In another embodiment of the present application, please refer to FIG. 3 , the nose die 32 is sleeved on the outer peripheral side of the extrusion die tube 21 and has an annular first cavity 302 , and the first cavity 302 communicates with the delivery pipe 331 and sleeve 311. The nose die 32 is an independent part, which is sleeved on the outer peripheral side of the extrusion die tube 21, and can be fixed connection or clearance fit. The die 32 of the die 32 has a built-in first cavity 302 , and the first cavity 302 assumes the channel function of transferring the extruded material of the melting part 31 to the conveying pipe 331 . In other embodiments, the nose die 32 may also adopt other structural forms, as long as it can transfer the extruded material of the melting part 31 to the conveying pipe 331 .

Preferably, the outer cavity wall of the first cavity 302 and the inner tube wall of the delivery tube 331 are arranged coaxially and with equal diameters. This setting can simplify the structure and is beneficial to reduce the movement resistance of the extruded material from the die 32 of the machine head to the conveying pipe 331 .

In another embodiment of the present application, please refer to FIG. 3 , the sleeve 311 is sheathed on the outer peripheral side of the extrusion die tube 21, and a second storage chamber is formed between the sleeve 311 and the extrusion die tube 21, and the second screw 312 is placed in the second storage cavity. The first screw 22 and the second screw 312 are arranged coaxially and have the same rotation axis. The second storage chamber communicates with the silo 34 to receive the extruded materials falling from the silo 34 . The extruded material is in the second material storage cavity and moves to the die 32 of the machine head through the rotation of the second screw 312 .

Undoubtedly, the second screw 312 is a hollow structure and is sheathed on the outside of the extrusion die tube 21 . There is a gap between the second screw 312 and the extrusion die tube 21 to avoid the frictional resistance caused by the extrusion die tube 21 to the rotation of the second screw rod 312 .

The extrusion die tube 21 extends to the sleeve 311 . Preferably, the extrusion die tube 21 is provided with equal sections and extends linearly along the front-to-back direction, and the extrusion die tube 21 runs through both ends of the casing 311 and extends to the second extrusion port 301 of the delivery pipe 331 . The various structures of the extrusion unit 30 (die 32 and molding part 33 ) are integrated outside the casing 311 , which is beneficial to simplify the structure and design. The diameter of the casing 311 may be equal to or different from that of the delivery tube 331 , which is not limited herein.

In another embodiment of the present application, the rotational angular velocity ratio of the first screw 22 and the second screw 312 is constant. The extrusion speed of the conductive medium 12 is in the same ratio as that of the extruded material, so as to improve the uniformity of filling the conductive medium 12 in the fixed conduit 11 .

In another embodiment of the present application, the fixed conduit 11 has elasticity, and the conductive medium 12 is in an interference fit with the fixed conduit 11, so that the fixed conduit 11 exerts inward pressure on the conductive particles, thereby increasing the compactness of each conductive particle and improving the conductivity. Conductivity of medium 12.

Specific to the cell production equipment provided in this embodiment, it is shown that the total volume V1 of the conductive medium 12 extruded from the first extrusion port 201 per unit time is not less than that enclosed by the fixed conduit 11 extruded from the second extrusion port 301 Combined internal space volume V2. This arrangement enables the conductive medium 12 to be fully filled into the fixed catheter 11 and the fixed catheter 11 is properly stretched, in other words, the fixed catheter 11 exerts an inward contracting pressure on the conductive medium 12 .

The total volume V1=D1*S1 of the conductive medium 12 extruded from the first extrusion port 201 per unit time, D1 is the minimum cross-sectional area of the first extrusion port 201, and S1 is the unit time of the conductive medium 12 at the first extrusion port 201 the moving distance.

S1=P1*W1/360, P1 is the pitch of the first screw 22 , W1 is the angular velocity of the first screw 22 .

From above, V1=D1*P1*W1/360.

The internal space volume enclosed by the fixed conduit 11 extruded from the second extrusion port 301 per unit time V2=(D1+d)*S2, D1 is the cross-sectional area of the first extrusion port 201, and d is the pipe wall of the mold tube 21 S2 is the moving distance of the fixed conduit 11 at the second extrusion port 301 per unit time.

Since the conveying pipe 331 and the sleeve pipe 311 are directly sleeved on the outer peripheral side of the extrusion die pipe 21 to form a conveying channel for the extruded material, when the cross-sectional dimensions of the conveying pipe 331 and the sleeve pipe 311 are the same (the conveying pipe 331 and the sleeve pipe 311 The distance between the inner pipe wall of the casing 311 and the outer surface of the extrusion die pipe 21 is equal), the removal distance S2 of the fixed conduit 11 at the second extrusion port 301 per unit time and the extruded material from the casing 311 to the machine per unit time The conveying distance S3 of the head die is equal.

S3=P2*W2/360, P2 is the pitch of the second screw 312, W2 is the angular velocity of the second screw 312.

From above, V2=(D1+d)*P2*W2/360.

The total volume of the conductive medium 12 extruded from the first extrusion port 201 per unit time is not less than the volume of the internal space enclosed by the fixed conduit 11 extruded from the second extrusion port 301, ie V1≥V2.

In the case that the wall thickness of the mold tube 21 is small, it can be considered: D1*P1*W1/360>D1*P2*W2/360, which is further simplified as: P1*W1>P2*W2.

In another embodiment of the present application, the filling unit 20 includes a material box 23, the material box 23 has a material storage cavity for accommodating the conductive medium 12, the material storage cavity communicates with the extrusion die tube 21, and the volume of the material storage cavity can be Adjust according to the volume of the conductive medium 12 in the storage chamber. Since the graphite powder particles in the conductive medium 12 are very small, they are easy to float in the air under normal pressure. The storage cavity of the material box 23 can expand and contract according to the volume of the conductive medium 12, so that the graphite powder and metal balls are concentrated at the bottom of the material box 23, and the graphite powder is forced to fill the gap between the conductive balls, thereby reducing the conductive medium 12. The void ratio in the fixed conduit 11 is filled to improve the quality of the electric core.

In this embodiment, the material box 23 is provided with an air suction port 202 , and an air suction pump is provided at the air suction port 202 . After the conductive medium 12 is partially transferred from the material box 23 to the extrusion die tube 21, the air pump will discharge the air in the material storage cavity, and a negative pressure will be formed in the material storage cavity to force the material box 23 to compress and reduce the volume of the material storage cavity. Small enough to match the volume of the conductive medium 12 in it.

It can be understood that, in the case where a feed opening is opened on the upper surface of the material box 23, the material box 23 is equipped with a sealing cover (not shown) corresponding to the feed opening. After the operation of putting the conductive medium 12 into the material box 23 from the feed port is completed, the sealing cover is closed with the material box 23 to close the feed port. At this time, the air pump sucks out the air in the material box 23 to compress the material box 23 .

In the structure shown in Fig. 4, the material box 23 is made of flexible material, and the material box 23 is arranged above the extrusion die tube 21, and the bottom of the material box 23 is provided with a discharge port communicating with the discharge port. The section of the material box 23 along the height direction is corrugated extending up and down, and can be stretched up and down.

Preferably, the suction port 202 is provided with a filter. The filter prevents graphite powder from leaving the storage chamber.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the protection of the present invention. within range.

Claims (10)

1. A kind of electric core production equipment, is used for producing the electric core of electric wire, and described electric core comprises fixed conduit and the conductive medium that fills in described fixed conduit, and described fixed conduit is made of extruded plastic material, and described conductive The medium is granular, and it is characterized in that the cell production equipment includes: The filling unit includes an extrusion die tube and a first screw built in the extrusion die tube, the extrusion die tube is used for the insertion of the conductive medium and has a first extrusion port for the removal of the conductive medium, so The first screw rotates to squeeze the conductive medium in the extrusion die tube and move it out of the extrusion die tube through the first extrusion port; The extrusion unit includes a melting part, a nose die and a forming part. The melting part is used for inserting the extrusion material and melting the extrusion material and transporting the melted extrusion material to the The head die, the forming part includes a delivery pipe connected to the head die, and a cooling structure for cooling the extruded material in the delivery pipe, the delivery pipe is tubular and sleeved On the outer peripheral side of the extrusion die pipe, the delivery pipe has a second extrusion port away from the die of the die; Wherein, the first extrusion port and the second extrusion port are coplanar, the extrusion material is extruded through the second extrusion port to form the fixed conduit, and the conductive medium is formed in the first extrusion port. The outlet is extruded and filled in the fixed conduit. 2. The electric core production equipment according to claim 1, wherein the die of the die is sleeved on the outer peripheral side of the extrusion die tube and has a ring-shaped first cavity, and the first The cavity communicates with the delivery pipe and the melting part. 3 . The cell production equipment according to claim 2 , wherein the outer wall of the first cavity is arranged coaxially and equal in diameter to the inner wall of the delivery tube. 4 . 4. The electric core production equipment according to claim 2, wherein the melting part comprises a casing sleeved outside the extrusion die tube, and a sleeve provided between the sleeve and the extrusion die Between the tubes is a second screw that rotates to drive the extrusion material toward the die of the die. 5 . The cell production equipment according to claim 4 , wherein the first screw and the second screw are arranged coaxially, and the ratio of rotational angular velocity is constant. 5 . 6. The cell production equipment according to claim 1, wherein the total volume of the conductive medium extruded from the first extrusion port per unit time is not less than the volume of the conductive medium extruded from the second extrusion port. The volume of the internal space enclosed by the fixed conduit. 7. The cell production equipment according to claim 4, wherein the cross-sectional dimensions of the delivery pipe and the sleeve are the same; The first screw and the second screw satisfy: P1*W1>P2*W2, P1 is the pitch of the first screw, W1 is the angular velocity of the first screw, and P2 is the pitch of the second screw , W2 is the angular velocity of the second screw. 8. The cell production equipment according to any one of claims 1 to 4, wherein the filling unit comprises a material box, the material box has a material storage cavity for accommodating the conductive medium, and the The material storage chamber communicates with the extrusion die pipe, and the volume of the material storage chamber can be adjusted according to the volume of the conductive medium in the material box. 9 . The cell production equipment according to claim 8 , wherein the material box is provided with an air suction port, and an air suction pump is provided at the air suction port. 10 . 10. The cell production equipment according to claim 9, characterized in that, the air inlet is provided with a filter.

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