An extrusion device for electrode paste shaping
By using a reverse transmission mechanism and a screw conveyor design to reverse the rotation, the problem of uneven composition of the electrode paste during the conveying process is solved, achieving uniform mixing of the electrode paste and improving the molding quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGXIA JIUXING YONGTAI NEW ENERGY TECH CO LTD
- Filing Date
- 2025-06-19
- Publication Date
- 2026-06-23
AI Technical Summary
Existing electrode paste forming devices are prone to material separation when left in the storage tank for a long time, and cannot be effectively stirred during the conveying process, resulting in uneven composition.
A reverse transmission mechanism is used to make rotating shafts A and B rotate in opposite directions, which in turn drives augers A and B to rotate in opposite directions. The electrode paste is stirred by the reverse rotation of the augers, and the design of the through holes and mixing plate on the augers ensures that the components are mixed evenly.
This process ensures uniform mixing of the electrode paste during transport, preventing component aggregation and guaranteeing thorough mixing of solid particles, liquid, and binder, thereby improving molding quality.
Smart Images

Figure CN224388580U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electrode paste production technology, and in particular to an extrusion device for forming electrode paste. Background Technology
[0002] Electrode paste is typically composed of various solid raw materials (such as anthracite, metallurgical coke, graphite flakes, etc.) and binders (such as coal tar pitch). During the mixing stage, the electrode paste needs to be stirred so that the solid particles, liquid and binder in the electrode paste can be fully mixed, ensuring that the components are evenly distributed and avoiding the problems of layering or clumping during use.
[0003] Existing electrode paste extrusion molding equipment typically places the mixed material in a storage tank and then transports the electrode paste to the molding tank via a conveying mechanism. However, if the electrode paste is left in the storage tank for a long time, material separation may occur. Therefore, an extrusion device for electrode paste molding is needed that can simultaneously transport and mix the electrode paste. Utility Model Content
[0004] This invention addresses the shortcomings of existing technologies by providing an extrusion device for electrode paste forming. This device uses a reverse transmission mechanism to rotate shafts A and B in opposite directions, thereby driving screw conveyors A and B to rotate in opposite directions. Simultaneously, the electrode paste is conveyed and stirred in the feeding cylinder by the reverse-rotating screw conveyors A and B. This device is simple, efficient, safe, reliable, and easy to operate.
[0005] This utility model is achieved through the following technical solution: providing an extrusion device for electrode paste forming, including a feeding cylinder with an inlet and an outlet; rotating shafts A and B are mounted inside the feeding cylinder, connected by a reverse transmission mechanism; auger A is mounted on shaft A, and auger B is mounted on shaft B, with augers A and B rotating in opposite directions; the reverse transmission mechanism causes shafts A and B to rotate in opposite directions, thereby driving augers A and B to rotate in opposite directions, and the electrode paste is directionally transported under the extrusion of augers A and B, while the reverse-rotating augers A and B stir the electrode paste inside the feeding cylinder.
[0006] As an optimization, augers A and B are respectively provided with several through holes; the electrode paste is dispersed by passing through the through holes, which prevents the components in the electrode paste from agglomerating, so that the solid particles, liquid and binder in the electrode paste can be fully mixed and the components are evenly distributed.
[0007] As an optimization, auger B is located between the discharge port and auger A, and the through hole on auger B is located at the end of auger B away from the discharge port; pressure is applied to the electrode paste by the end of auger B near the discharge port, thereby ensuring that the electrode paste moves toward the discharge port.
[0008] As an optimization, a mixing plate is provided between shaft A and shaft B, and the mixing plate divides the feeding cylinder into a mixing chamber and an extrusion chamber. The mixing plate has a mixing hole that connects the mixing chamber and the extrusion chamber. The electrode paste is dispersed through the mixing hole to avoid the aggregation of the components in the electrode paste, so that the solid particles, liquid and binder in the electrode paste can be fully mixed and the components can be evenly distributed.
[0009] As an optimization, the mixing plate is rotated inside the feeding cylinder, and the axis of the mixing hole is inclined along the axis of the rotating shaft A; the mixing plate is rotated by the movement of the electrode paste, thereby improving the mixing effect of the electrode paste.
[0010] The beneficial effects of this utility model are as follows: the reverse transmission mechanism causes shafts A and B to rotate in opposite directions, thereby driving augers A and B to rotate in opposite directions. The electrode paste is directionally conveyed under the extrusion of augers A and B. The reverse-rotating augers A and B stir the electrode paste in the feeding cylinder. The electrode paste is dispersed by passing through the through hole, which prevents the components in the electrode paste from agglomerating, so that the solid particles, liquid and binder in the electrode paste can be fully mixed and the components are evenly distributed. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the structure of this utility model;
[0012] Figure 2 This is a schematic diagram of the structure of the mixing plate of the utility model;
[0013] As shown in the figure:
[0014] 1. Feeding cylinder, 2. Rotating shaft A, 3. Rotating shaft B, 4. Reverse transmission mechanism, 5. Screw A, 6. Screw B, 7. Drive mechanism, 8. Mixing plate, 101. Feed inlet, 102. Discharge outlet, 103. Mixing chamber, 104. Extrusion chamber. Detailed Implementation
[0015] To clearly illustrate the technical features of this solution, the following detailed implementation method will be used to explain the solution.
[0016] like Figure 1The extrusion equipment for electrode paste forming of this utility model includes a feeding cylinder 1 with an inlet 101 and an outlet 102. A rotating shaft A2 and a rotating shaft B3 are rotatably mounted inside the feeding cylinder 1, and are connected by a reverse transmission mechanism 4. An auger A5 is mounted on the rotating shaft A2, and an auger B6 is mounted on the rotating shaft B3, with the augers A5 and B6 rotating in opposite directions. The rotating shaft A2 has a cylindrical structure, and the rotating shaft B3 is coaxially mounted on the rotating shaft A2. Inside, rotating shafts A2 and B3 extend vertically; the reverse transmission mechanism 4 is existing technology; the feed inlet 101 is located at the top of the feeding cylinder 1, and the discharge outlet 102 is located at the bottom of the feeding cylinder 1, and the discharge outlet 102 is located directly above the molding machine. The molding machine is equipped with a flattening mechanism, which is existing technology. The flattening mechanism works with the feeding cylinder 1 to make electrode paste modules in the molding machine; the rotating shaft A2 is connected to a drive mechanism 7, which is existing technology and can be a motor.
[0017] Electrode paste is fed into the feeding cylinder 1 through the feed inlet 101. The drive mechanism 7 is started, and the drive mechanism 7 drives the rotating shaft A2 to rotate. The rotating shaft A2 drives the rotating shaft B3 to rotate in the opposite direction through the reverse transmission mechanism 4. The rotating shafts A2 and B3 drive the augers A5 and B6 to rotate in the opposite direction. The electrode paste is directionally conveyed under the extrusion of the augers A5 and B6. The augers A5 and B6 rotating in the opposite direction stir the electrode paste in the feeding cylinder 1. The stirred electrode paste is discharged through the discharge port 102.
[0018] like Figure 1 The screw conveyors A5 and B6 shown are provided with several through holes; the through holes are arranged in sequence along the radial direction of the shaft and along the extension direction of screw conveyors A5 and B6.
[0019] Screw A5 and screw B6 rotate and squeeze the electrode paste, which passes through the through hole and is thus dispersed, allowing the components in the electrode paste to mix evenly.
[0020] like Figure 1 The auger B6 shown is located between the discharge port 102 and the auger A5, and the through hole on the auger B6 is located at the end of the auger B6 away from the discharge port 102; the augers A5 and B6 are arranged vertically from top to bottom.
[0021] Screw A5 and screw B6 rotate and squeeze the electrode paste, which passes through the through hole and is thus dispersed, and the components in the electrode paste are evenly mixed. Screw B6 squeezes the electrode paste at the end near the discharge port 102, causing it to move toward the discharge port 102.
[0022] like Figure 2A mixing plate 8 is provided between the rotating shaft A2 and the rotating shaft B3 shown, and the mixing plate 8 divides the feeding cylinder 1 into a mixing chamber 103 and an extrusion chamber 104. A mixing hole is provided on the mixing plate 8 to connect the mixing chamber 103 and the extrusion chamber 104. The axis of the mixing plate 8 extends in the vertical direction and the mixing plate 8 extends in the horizontal direction.
[0023] Rotating shafts A2 and B3 drive augers A5 and B6 to rotate in opposite directions. The electrode paste moves vertically downward under the pressure of augers A5 and B6. The electrode paste passes through the mixing holes. Electrode paste in the same part passes through different mixing holes under the drive of auger A5. The electrode paste is broken up and the components in the electrode paste are evenly mixed.
[0024] like Figure 2 The mixing plate 8 shown is rotated inside the feeding cylinder 1, and the axis of the mixing hole is inclined along the axis of the rotating shaft A2. The inclination direction of the mixing hole is opposite to the rotation direction of the auger A5.
[0025] Rotating shafts A2 and B3 drive augers A5 and B6 to rotate in opposite directions. The electrode paste moves vertically downward under the pressure of augers A5 and B6. The electrode paste passes through the mixing hole and drives the mixing plate 8 to rotate. Electrode paste in the same part passes through different mixing holes under the drive of auger A5. The electrode paste is broken up and the components in the electrode paste are evenly mixed.
[0026] In actual production, electrode paste is fed into the feeding cylinder 1 through the feed inlet 101. The drive mechanism 7 is started, and the drive mechanism 7 drives the rotating shaft A2 to rotate. The rotating shaft A2 drives the rotating shaft B3 to rotate in the opposite direction through the reverse transmission mechanism 4. The rotating shafts A2 and B3 drive the augers A5 and B6 to rotate in the opposite direction. The electrode paste moves vertically downward under the pressure of the augers A5 and B6. The auger A5 rotates and squeezes the electrode paste, and the electrode paste passes through the through hole, thus breaking up the electrode paste and mixing the components in the electrode paste evenly. The electrode paste passes through the mixing hole under the pressure of the auger A5 and drives the mixing plate 8 to rotate. The electrode paste in the same part passes through different mixing holes under the drive of the auger A5, breaking up the electrode paste and mixing the components in the electrode paste evenly.
[0027] Screw B6 rotates and squeezes the electrode paste, which passes through the through hole and is thus broken up, so that the components in the electrode paste are evenly mixed. Screws A5 and B6 rotate in opposite directions to stir the electrode paste in the feeding cylinder 1. At the same time, the mixing plate 8 stirs the electrode paste. The stirred electrode paste is discharged through the discharge port 102.
[0028] Of course, the above description is not limited to the examples above. Technical features of this utility model not described can be implemented by or using existing technology, and will not be repeated here. The above embodiments and drawings are only used to illustrate the technical solution of this utility model and are not intended to limit this utility model. This utility model has been described in detail with reference to preferred embodiments. Those skilled in the art should understand that any changes, modifications, additions or substitutions made by those skilled in the art within the scope of this utility model do not depart from the spirit of this utility model and should also fall within the protection scope of the claims of this utility model.
Claims
1. An extrusion device for electrode paste forming, comprising a feeding cylinder (1) with a feeding port (101) and a discharging port (102) formed on the feeding cylinder (1); characterized in that: The feeding cylinder (1) is equipped with a rotating shaft A (2) and a rotating shaft B (3), which are connected by a reverse transmission mechanism (4); a screw conveyor A (5) is provided on the rotating shaft A (2), and a screw conveyor B (6) is provided on the rotating shaft B (3), and the rotation directions of the screw conveyor A (5) and the screw conveyor B (6) are opposite.
2. The extrusion apparatus for forming electrode paste according to claim 1, characterized by: Several through holes are respectively opened on screw conveyor A (5) and screw conveyor B (6).
3. The extrusion apparatus for forming electrode paste according to claim 2, characterized by: Screw B (6) is located between the discharge port (102) and screw A (5), and the through hole on screw B (6) is located at the end of screw B (6) away from the discharge port (102).
4. The extrusion apparatus for forming electrode paste according to claim 1, characterized by: A mixing plate (8) is provided between the rotating shaft A (2) and the rotating shaft B (3), and the mixing plate (8) divides the feeding cylinder (1) into a mixing chamber (103) and an extrusion chamber (104). A mixing hole is provided on the mixing plate (8) to connect the mixing chamber (103) and the extrusion chamber (104).
5. The extrusion apparatus for forming electrode paste according to claim 4, characterized by: The mixing plate (8) is installed inside the feeding cylinder (1), and the axis of the mixing hole is inclined along the axis of the rotating shaft A (2).