Inclined single-screw extruder for dry-method electrode diaphragm

Abstract

The invention relates to an inclined single-screw extruder for a dry-method electrode diaphragm, and belongs to the technical field of battery production, the inclined single-screw extruder for the dry-method electrode diaphragm comprises a base, a barrel, a rotating motor, a screw and an extrusion die head, an inclined mounting surface is formed on the top surface of the base, the barrel is fixed on the mounting surface, and the rotating motor is fixed on the barrel. A feeding port is formed in the side face of the first end, with the higher horizontal height, of the barrel, and a discharging port is formed in the end face of the second end, with the lower horizontal height, of the barrel. According to the inclined single-screw extruder for the dry-method electrode diaphragm, on one hand, the overall occupied area of the extruder can be reduced, and on the other hand, the mobility of powder can be improved by fully utilizing the gravity action of the powder, so that the production efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of battery production, and in particular to an inclined single-screw extruder for dry-process electrode membranes. Background Art

[0002] The production process of battery electrodes includes wet process and dry process. The organic solvents used in the wet process have disadvantages such as high energy consumption, heavy pollution, and limited electrode thickness. The dry process can avoid the use of solvents when preparing lithium batteries. It has incomparable advantages over the wet process in reducing battery costs and improving battery performance.

[0003] The current mainstream manufacturing technology for dry-process electrodes adopts the polytetrafluoroethylene fibrillation route, and one of the important ways of its film-forming process is screw extrusion. However, the existing dry-process electrode mass production supporting equipment is not mature, and the screw extrusion processing equipment mostly adopts horizontal twin-screw extruders, which are relatively bulky, the disassembly of the discharge extrusion mold is difficult, and the fluidity of the material is poor, which has the problems of large space occupation and low production efficiency. Summary of the invention

[0004] Based on this, it is necessary to provide an inclined single-screw extruder for dry-process electrode membranes to solve the technical problems of large space occupation and low production efficiency of the screw extruder in the prior art.

[0005] To achieve the above-mentioned purpose, the present application provides an inclined single-screw extruder for a dry-process electrode membrane, the inclined single-screw extruder for a dry-process electrode membrane comprising:

[0006] A base, the top surface of which is formed with an inclined mounting surface;

[0007] The cylinder is fixed on the mounting surface, a feed port is arranged on the side surface of the first end of the cylinder with a higher horizontal height, a discharge port is arranged on the end surface of the second end of the cylinder with a lower horizontal height, and a material channel for accommodating powder is arranged between the feed port and the discharge port;

[0008] A rotating motor is arranged on the end surface of the first end, and a rotating shaft of the rotating motor passes through the first end and extends into the material channel;

[0009] A screw rod is disposed in the material channel and connected to the rotating shaft, and is used to extrude the powder from the feed port to the discharge port; and

[0010] The extrusion die head is detachably arranged at the discharge port, and the powder is extruded into a film body through the extrusion die head.

[0011] Optionally, the base comprises:

[0012] Base plate;

[0013] A first support plate is detachably disposed on one end of the top surface of the bottom plate, and a first notch adapted to the first end is disposed on the top of the first support plate; and

[0014] The second support plate is detachably arranged at the other end of the top surface of the bottom plate. The height of the first support plate is greater than that of the second support plate. A second notch adapted to the second end is arranged on the top of the second support plate.

[0015] Optionally, a support member is further provided on the end surface of the first end, the support member is arc-shaped, and the support member is used to support the rotating motor.

[0016] Optionally, a feed pipe is provided at the feed inlet.

[0017] Optionally, a connecting flange is provided at the port of the feed pipe.

[0018] Optionally, the extrusion die comprises:

[0019] A sleeve is screwed at the discharge port, the end of the sleeve close to the cylinder is the proximal end, the end of the sleeve away from the cylinder is the distal end, a travel groove is arranged on the inner wall surface of the sleeve, the travel groove passes through the end surface of the proximal end, and the travel groove does not pass through the end surface of the distal end; and

[0020] The mold is arranged in the sleeve, and a sliding block matched with the stroke groove is arranged on the side circumference of the mold.

[0021] Optionally, the travel groove includes a first travel groove, a second travel groove and a third travel groove, and the length of the first travel groove is greater than the length of the second travel groove;

[0022] The mold includes a diaphragm extrusion mold, a first screen mold and a second screen mold. The diaphragm extrusion mold, the first screen mold and the second screen mold are arranged in sequence at intervals. The first screen mold and the second screen mold are both arranged on the side of the diaphragm extrusion mold facing the proximal end. A first slider matched with the first stroke groove is arranged on the side circumferential surface of the diaphragm extrusion mold, a second slider matched with the second stroke groove is arranged on the side circumferential surface of the first screen mold, and a third slider matched with the third stroke groove is arranged on the side circumferential surface of the second screen mold.

[0023] Optionally, four first stroke grooves, four second stroke grooves and four third stroke grooves are respectively provided, and the first stroke grooves, the second stroke grooves and the third stroke grooves form four groups of groove body structures, each group of groove body structures includes a first stroke groove, a second stroke groove and a third stroke groove, and the first stroke groove, the second stroke groove and the third stroke groove of each group of groove body structures overlap together, the depth of the first stroke groove is less than the depth of the second stroke groove, and the depth of the second stroke groove is less than the depth of the third stroke groove.

[0024] Optionally, a first through hole connected to the outer surface of the cylinder is provided at the end of the first stroke groove away from the proximal end, a second through hole connected to the outer surface of the cylinder is provided at the end of the second stroke groove away from the proximal end, and a third through hole connected to the outer surface of the cylinder is provided at the end of the third stroke groove away from the proximal end. The extrusion die head also includes an electromagnetic mechanism arranged on the cylinder body, the electromagnetic mechanism includes a first magnetic end arranged in the first through hole, a second magnetic end arranged in the second through hole, and a third magnetic end arranged in the third through hole, and a first slider corresponding to the first magnetic end, a second slider corresponding to the second magnetic end, and a third slider corresponding to the third magnetic end are all embedded with magnetic metal blocks.

[0025] Optionally, the size of the mesh holes on the first mesh mold is larger than the size of the mesh holes on the second mesh mold.

[0026] The beneficial effect of the inclined single-screw extruder for dry-process electrode diaphragms provided in the present application is that compared with the prior art, the inclined single-screw extruder for dry-process electrode diaphragms provided in the present application includes a base, a barrel, a rotating motor, a screw and an extrusion die head. The barrel is fixed on the base at an angle, and the height of the feed port is higher than that of the discharge port. On the one hand, the overall footprint of the extruder can be reduced, and on the other hand, the gravity of the powder itself can be fully utilized to improve the fluidity of the powder, thereby improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0028] Figure 1 A schematic diagram of the three-dimensional structure of an inclined single-screw extruder for a dry-process electrode membrane provided in an embodiment of the present application;

[0029] Figure 2 A schematic diagram of the exploded structure of an inclined single-screw extruder for a dry electrode membrane provided in an embodiment of the present application;

[0030] Figure 3 A schematic diagram of the exploded structure of the extrusion die head of the oblique single-screw extruder for the dry-process electrode membrane provided in the embodiment of the present application;

[0031] Figure 4 A schematic diagram of the internal structure of the extrusion die head of an inclined single-screw extruder for dry-process electrode membranes provided in an embodiment of the present application.

[0032] Description of reference numerals:

[0033] 1. Base; 110. Bottom plate; 120. First support plate; 130. Second support plate; 131. Second notch;

[0034] 2. Cylinder; 210. Feed port; 220. Discharge port; 230. Feed pipe; 240. Connecting flange; 250. Connecting cylinder; 251. External thread; 252. Annular flange; 260. Sealing ring;

[0035] 3. Rotating motor;

[0036] 4. Screw;

[0037] 5. Extrusion die; 510. Sleeve; 511. First stroke groove; 512. Second stroke groove; 513. Third stroke groove; 514. First through hole; 515. Second through hole; 516. Third through hole; 517. Internal thread; 518. Force plate; 520. Diaphragm extrusion die; 521. First slider; 530. First screen die; 531. Second slider; 540. Second screen die; 541. Third slider; 550. Electromagnetic mechanism; 551. First magnetic end; 552. Second magnetic end; 553. Third magnetic end; 560. Magnetic metal block;

[0038] 6. Support parts. DETAILED DESCRIPTION

[0039] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0040] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0041] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0042] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0043] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0044] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0045] The embodiment of the present application provides a slanted single screw 4 extruder for dry electrode membrane, please refer to Figures 1 to 4The oblique single-screw 4 extruder for dry electrode membrane comprises a base 1, a barrel 2, a rotating motor 3, a screw 4 and an extrusion die 5. The top surface of the base 1 is formed with an inclined mounting surface, the barrel 2 is fixed on the mounting surface, a feed port 210 is arranged on the side surface of the first end of the barrel 2 with a higher horizontal height, a discharge port 220 is arranged on the end surface of the second end of the barrel 2 with a lower horizontal height, and a material channel for accommodating powder is arranged between the feed port 210 and the discharge port 220; the rotating motor 3 is arranged on the end surface of the first end, and the rotating shaft of the rotating motor 3 passes through the first end and extends into the material channel; the screw 4 is arranged in the material channel and connected with the rotating shaft, and the screw 4 is used to extrude the powder from the feed port 210 to the discharge port 220; the extrusion die 5 is detachably arranged at the discharge port 220, and the powder is extruded into a membrane through the extrusion die 5.

[0046] In the embodiment of the present application, the inclined single-screw 4 extruder for dry electrode membrane includes a base 1, a barrel 2, a rotating motor 3, a screw 4 and an extrusion die 5. The barrel 2 is fixed on the base 1 at an angle, and the height of the feed port 210 is higher than the discharge port 220. On the one hand, the overall footprint of the extruder can be reduced, and on the other hand, the gravity of the powder itself can be fully utilized to improve the fluidity of the powder, thereby improving production efficiency.

[0047] In one embodiment, please refer to Figure 1 and Figure 2 The base 1 includes a bottom plate 110, a first support plate 120 and a second support plate 130. The first support plate 120 is detachably arranged at one end of the top surface of the bottom plate 110, and a first notch adapted to the first end is arranged on the top of the first support plate 120; the second support plate 130 is detachably arranged at the other end of the top surface of the bottom plate 110, the height of the first support plate 120 is greater than the height of the second support plate 130, and a second notch 131 adapted to the second end is arranged on the top of the second support plate 130.

[0048] Through the above arrangement, the cylinder 2 is tilted and fixed by two first support plates 120 and second support plates 130 of different heights, and the top of the first support plate 120 is provided with a first notch adapted to the first end, and the top of the second support plate 130 is provided with a second notch 131 adapted to the second end, so that the cylinder 2 can fit better on the base 1 and the structure is more stable.

[0049] In one embodiment, please refer to Figure 1 and Figure 2 A support member 6 is also provided on the end surface of the first end. The support member 6 is arc-shaped and is used to support the rotating motor 3 to improve the stability of the rotating motor 3, thereby ensuring that the screw 4 can rotate stably.

[0050] In one embodiment, please refer to Figure 1and Figure 2 A feed pipe 230 is provided at the feed inlet 210 to facilitate connecting other equipment to the feed inlet 210 .

[0051] In one embodiment, please refer to Figure 1 and Figure 2 A connecting flange 240 is provided at the end of the feed pipe 230 to facilitate connecting other equipment at the feed port 210 .

[0052] In one embodiment, see Figure 3 The extrusion die head 5 includes a sleeve 510 and a mold. The sleeve 510 is screwed at the discharge port 220. The end of the sleeve 510 close to the barrel 2 is the proximal end, and the end of the sleeve 510 away from the barrel 2 is the distal end. A stroke groove is arranged on the inner wall surface of the sleeve 510. The stroke groove passes through the end surface of the proximal end, and the stroke groove does not pass through the end surface of the distal end. The mold is arranged in the sleeve 510, and a slider adapted to the stroke groove is arranged on the side circumference of the mold.

[0053] By the above arrangement, the mold abuts against the end of the travel groove, and the mold will have a tendency to move toward the far end under the action of powder extrusion, so that the mold is stabilized at the end of the travel groove.

[0054] In other embodiments, a connecting tube 250 is provided at the discharge port 220, and an external thread 251 is provided on the outer circumferential surface of the connecting tube 250 away from the cylinder body 2, and a matching internal thread 517 is provided on the inner circumferential surface of the proximal end of the sleeve 510, thereby realizing a threaded connection between the sleeve 510 and the cylinder body 2; an annular rib 252 is also provided in the middle of the outer circumferential surface of the connecting tube 250, and a sealing ring 260 is also sleeved on the connecting tube 250, and the sealing ring 260 is squeezed and clamped between the annular rib 252 and the sleeve 510, thereby improving the sealing of the connection between the cylinder body 2 and the sleeve 510.

[0055] In other embodiments, a force plate 518 is provided on the outer peripheral surface of the sleeve 510. When the sleeve 510 is screwed onto the cylinder body 2, the force plate 518 can provide a larger force contact area for the staff, thereby facilitating the assembly of parts.

[0056] Furthermore, two force-bearing plates 518 are provided, and the two force-bearing plates 518 are symmetrically arranged on the outer circumferential surface of the sleeve 510 .

[0057] In one embodiment, see Figure 3The stroke groove includes a first stroke groove 511, a second stroke groove 512 and a third stroke groove 513, and the length of the first stroke groove 511 is greater than the length of the second stroke groove 512; the mold includes a diaphragm extrusion mold 520, a first screen mold 530 and a second screen mold 540, and the diaphragm extrusion mold 520, the first screen mold 530 and the second screen mold 540 are arranged in sequence at intervals, and the first screen mold 530 and the second screen mold 540 are both arranged on the side of the diaphragm extrusion mold 520 facing the proximal end, and a first slider 521 adapted to the first stroke groove 511 is arranged on the side circumferential surface of the diaphragm extrusion mold 520, a second slider 531 adapted to the second stroke groove 512 is arranged on the side circumferential surface of the first screen mold 530, and a third slider 541 adapted to the third stroke groove 513 is arranged on the side circumferential surface of the second screen mold 540.

[0058] Specifically, by setting the lengths of the first stroke groove 511, the second stroke groove 512 and the third stroke groove 513, the effect of limiting the installation positions of the diaphragm extrusion mold 520, the first screen mold 530 and the second screen mold 540 is achieved, which plays a certain positioning role and reduces the difficulty of assembling the extrusion die 5.

[0059] Specifically, the first screen mold 530 and the second screen mold 540 can evenly disperse the powder, thereby improving the film-forming quality of the powder.

[0060] In one embodiment, see Figure 3 There are four first stroke grooves 511, four second stroke grooves 512 and four third stroke grooves 513 respectively, and the first stroke grooves 511, the second stroke grooves 512 and the third stroke grooves 513 form four groups of groove body structures, each group of groove body structures includes a first stroke groove 511, a second stroke groove 512 and a third stroke groove 513, and the first stroke grooves 511, the second stroke grooves 512 and the third stroke grooves 513 of each group of groove body structures overlap together, the depth of the first stroke groove 511 is less than the depth of the second stroke groove 512, and the depth of the second stroke groove 512 is less than the depth of the third stroke groove 513.

[0061] In this way, four first stroke grooves 511, four second stroke grooves 512 and four third stroke grooves 513 are respectively provided, which can improve the stability of the installation of the diaphragm extrusion mold 520, the first screen mold 530 and the second screen mold 540; and the first stroke grooves 511, the second stroke grooves 512 and the third stroke grooves 513 overlap each other, on the one hand, it can avoid excessive cutting on the sleeve 510 and improve the structural strength of the sleeve 510; on the other hand, it can also avoid the messy arrangement of the first stroke grooves 511, the second stroke grooves 512 and the third stroke grooves 513, thereby improving the aesthetics; on the other hand, it can also make the first magnetic end 551, the second magnetic end 552 and the third magnetic end 553 of the electromagnetic mechanism 550 described below be arranged linearly, thereby reducing the difficulty of installing the electromagnetic mechanism 550 on the cylindrical surface.

[0062] Furthermore, the four groups of groove structures are evenly distributed on the inner circumference of the sleeve 510, so that the forces on the diaphragm extrusion die 520, the first screen die 530 and the second screen die 540 are relatively uniform.

[0063] In one embodiment, please refer to Figure 3 and Figure 4 The end of the first stroke groove 511 away from the proximal end is provided with a first through hole 514 connected to the outer surface of the cylinder 2, the end of the second stroke groove 512 away from the proximal end is provided with a second through hole 515 connected to the outer surface of the cylinder 2, and the end of the third stroke groove 513 away from the proximal end is provided with a third through hole 516 connected to the outer surface of the cylinder 2. The extrusion die head 5 also includes an electromagnetic mechanism 550 arranged on the cylinder 2, and the electromagnetic mechanism 550 includes a first magnetic end 551 arranged in the first through hole 514, a second magnetic end 552 arranged in the second through hole 515, and a third magnetic end 553 arranged in the third through hole 516. The first slider 521 corresponding to the first magnetic end 551, the second slider 531 corresponding to the second magnetic end 552, and the third slider 541 corresponding to the third magnetic end 553 are all embedded with a magnetic metal block 560.

[0064] It is understandable that in the prior art, when fixing multiple molds in a sleeve 510, the sleeve 510 is usually separated into multiple sub-tubes, and a fixing structure is designed between adjacent sub-tubes to fix the molds.

[0065] Through the above arrangement, the present application does not need to cut the sleeve 510, and multiple molds can be fixed in the sleeve 510 at the same time by magnetic attraction. The components reduce the difficulty of assembling the extrusion die 5, and also improve the integrity of the extrusion die 5 and the overall structural strength of the extrusion die 5.

[0066] Specifically, first, the electromagnetic mechanism 550 is in a closed state, the diaphragm extrusion mold 520 is slid to the end of the first stroke groove 511, the first screen mold 530 is slid to the end of the second stroke groove 512, and the second screen mold 540 is slid to the end of the third stroke groove 513, so as to realize the positioning of the diaphragm extrusion mold 520, the first screen mold 530 and the second screen mold 540; then, the electromagnetic mechanism 550 is energized, the first magnetic end 551, the second magnetic end 552 and the third magnetic end 553 generate magnetism, the magnetic metal block 560 of the first slider 521 and the first magnetic end 551 are magnetically attracted together, the magnetic metal block 560 of the second slider 531 and the second magnetic end 552 are magnetically attracted together, and the magnetic metal block 560 of the third slider 541 and the third magnetic end 553 are magnetically attracted together, so as to realize the fixing of the diaphragm extrusion mold 520, the first screen mold 530 and the second screen mold 540 respectively.

[0067] Alternatively, the first magnetic end 551, the second magnetic end 552 and the third magnetic end 553 of each electromagnetic mechanism 550 are independently controlled, and the diaphragm extrusion mold 520, the first screen mold 530 and the second screen mold 540 can be installed in sequence to improve the flexibility of assembly.

[0068] Furthermore, two electromagnetic mechanisms 550 are provided, and the two electromagnetic mechanisms 550 are symmetrically arranged on the outer peripheral surface of the sleeve 510, so that the two electromagnetic mechanisms 550 respectively fix the opposite ends of the diaphragm extrusion mold 520, the opposite ends of the first screen mold 530 and the opposite ends of the second screen mold 540, thereby improving the stability of the structure.

[0069] It is understandable that the number of electromagnetic mechanisms 550 is designed according to the force requirements of each mold during actual production. The more electromagnetic mechanisms 550 there are, the more stable the mold is. This is not a sole limitation.

[0070] In one embodiment, see Figure 3 , the size of the mesh holes on the first mesh mold 530 is greater than the size of the mesh holes on the second mesh mold 540 .

[0071] It can be understood that the size of the sieve holes on the first screen mold 530 and the size of the sieve holes on the second screen mold 540 are designed according to actual needs. Under other production conditions, the size of the sieve holes on the first screen mold 530 may also be smaller than the size of the sieve holes on the second screen mold 540, or the size of the sieve holes on the first screen mold 530 may also be equal to the size of the sieve holes on the second screen mold 540. No sole limitation is made here.

[0072] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0073] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. An inclined single-screw extruder for dry electrode membrane, characterized in that: include: A base, the top surface of which is formed with an inclined mounting surface; A cylinder is fixed on the mounting surface, a feed port is arranged on the side of the first end of the cylinder with a higher horizontal height, a discharge port is arranged on the end surface of the second end of the cylinder with a lower horizontal height, and a material channel for accommodating powder is arranged between the feed port and the discharge port; A rotating motor is disposed on an end surface of the first end, and a rotating shaft of the rotating motor passes through the first end and extends into the material channel; A screw rod is disposed in the material channel and connected to the rotating shaft, and the screw rod is used to extrude the powder from the feed port to the discharge port; as well as The extrusion die head is detachably arranged at the discharge port, and the powder is extruded into a film body through the extrusion die head.

2. The oblique single-screw extruder for dry electrode membrane according to claim 1, characterized in that: The base comprises: Base plate; A first support plate is detachably disposed on one end of the top surface of the bottom plate, and a first notch adapted to the first end is disposed on the top of the first support plate; and The second support plate is detachably arranged at the other end of the top surface of the bottom plate, the height of the first support plate is greater than the height of the second support plate, and the top of the second support plate is provided with a second notch adapted to the second end.

3. The oblique single-screw extruder for dry electrode membrane according to claim 1, characterized in that: A support member is also provided on the end surface of the first end. The support member is in an arc shape and is used to support the rotating motor.

4. The oblique single-screw extruder for dry-process electrode membrane according to any one of claims 1 to 3, characterized in that: A feeding pipeline is arranged at the feeding port.

5. The oblique single-screw extruder for dry-process electrode membrane according to claim 4, characterized in that: A connecting flange is arranged at the port of the feed pipeline.

6. The oblique single-screw extruder for dry-process electrode membrane according to any one of claims 1 to 3, characterized in that: The extrusion die head comprises: A sleeve is screwed to the discharge port, the end of the sleeve close to the cylinder is the proximal end, the end of the sleeve away from the cylinder is the distal end, a travel groove is arranged on the inner wall surface of the sleeve, the travel groove passes through the end surface of the proximal end, and the travel groove does not pass through the end surface of the distal end; and The mold is arranged in the sleeve, and a sliding block matched with the travel groove is arranged on the side circumference of the mold.

7. The oblique single-screw extruder for dry-process electrode membrane according to claim 6, characterized in that: The travel groove comprises a first travel groove, a second travel groove and a third travel groove, and the length of the first travel groove is greater than the length of the second travel groove; The mold includes a diaphragm extrusion mold, a first screen mold and a second screen mold, the diaphragm extrusion mold, the first screen mold and the second screen mold are arranged in sequence at intervals, the first screen mold and the second screen mold are both arranged on the side of the diaphragm extrusion mold facing the proximal end, a first slider matched with the first stroke groove is arranged on the side circumferential surface of the diaphragm extrusion mold, a second slider matched with the second stroke groove is arranged on the side circumferential surface of the first screen mold, and a third slider matched with the third stroke groove is arranged on the side circumferential surface of the second screen mold.

8. The oblique single-screw extruder for dry-process electrode membrane according to claim 7, characterized in that: There are four of the first stroke groove, the second stroke groove and the third stroke groove respectively, and the first stroke groove, the second stroke groove and the third stroke groove form four groups of groove body structures, each group of the groove body structures includes one first stroke groove, one second stroke groove and one third stroke groove, and the first stroke groove, the second stroke groove and the third stroke groove of each group of the groove body structures overlap together, the depth of the first stroke groove is less than the depth of the second stroke groove, and the depth of the second stroke groove is less than the depth of the third stroke groove.

9. The oblique single-screw extruder for dry-process electrode membrane according to claim 7, characterized in that: The end of the first stroke groove away from the proximal end is provided with a first through hole connected to the outer surface of the barrel, the end of the second stroke groove away from the proximal end is provided with a second through hole connected to the outer surface of the barrel, and the end of the third stroke groove away from the proximal end is provided with a third through hole connected to the outer surface of the barrel. The extrusion die head also includes an electromagnetic mechanism arranged on the barrel body, the electromagnetic mechanism includes a first magnetic end arranged in the first through hole, a second magnetic end arranged in the second through hole, and a third magnetic end arranged in the third through hole, and the first slider corresponding to the first magnetic end, the second slider corresponding to the second magnetic end, and the third slider corresponding to the third magnetic end are all embedded with magnetic metal blocks.

10. The oblique single-screw extruder for dry-process electrode membrane according to claim 7, characterized in that: The size of the mesh holes on the first mesh mold is greater than the size of the mesh holes on the second mesh mold.

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