Special screw for processing ABS battery shell
By designing a special screw with a specific structure for ABS battery casings and by implementing material processing techniques, the problems of uneven plasticization and wear in traditional screws when processing ABS materials have been solved, achieving efficient and uniform plasticization and extending screw life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 宁波金亿精密机械有限公司
- Filing Date
- 2025-07-31
- Publication Date
- 2026-05-29
AI Technical Summary
When processing ABS material, traditional injection screws have insufficient shear force, resulting in uneven plasticization and defects such as bubbles and flow marks. Furthermore, the glass fiber reinforcement in ABS material accelerates screw wear and shortens its service life.
A special screw for ABS battery shells was designed, including a mixing section, a metering section and a compression section. It adopts a specific angled anti-sloping groove, discharge sloping groove and pin structure, combined with nitriding treatment of 38CrMoAlA nitrided steel surface, to improve material conveying efficiency and mixing uniformity, and reduce shear heat and wear risk.
It achieves uniform plasticization of ABS material, reduces product defects, extends screw life, and reduces energy consumption.
Smart Images
Figure CN224296499U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of feeding screws, and in particular to a special screw for processing ABS battery shells. Background Technology
[0002] With the rapid development of new energy vehicles, energy storage equipment, and power tools, ABS (acrylonitrile-butadiene-styrene copolymer) material is widely used in battery casing manufacturing due to its excellent mechanical strength, corrosion resistance, and lightweight properties. As the core protective structure of battery components, the battery casing needs to have high precision, high surface finish, and good sealing performance, which places stringent requirements on the injection molding process.
[0003] When processing ABS materials, traditional injection molding screws suffer from uneven plasticization due to the high melt viscosity of ABS material and insufficient shear force, resulting in defects such as bubbles and flow marks. At the same time, the reinforcing agents such as glass fiber added to ABS material accelerate screw wear and shorten service life. To solve the above problems, a special screw for processing ABS battery shells is proposed. Utility Model Content
[0004] The present invention adopts the following technical solution:
[0005] A special screw for processing ABS battery shells includes a mixing section, wherein the mixing section includes a first mixing head and a second mixing head, the first mixing head is provided with a reverse slant groove, the second mixing head is provided on the left side of the first mixing head, the second mixing head is provided with a discharge slant groove, and a metering section is provided on the right side of the first mixing head, wherein a pin is provided on the metering section.
[0006] Furthermore, the discharge sloping lines are inclined, and the angle between the discharge sloping lines and the straight line where the screw axis is located is 45 degrees. There are several discharge sloping lines, and they are arranged in parallel on the surface of the second mixing head.
[0007] Furthermore, the first mixing head is provided with a plurality of anti-sloping grooves, the anti-sloping grooves are inclined, the anti-sloping grooves are at an angle of 30 degrees to the straight line where the screw axis is located, and there are a plurality of anti-sloping grooves, which are arranged in parallel on the surface of the first mixing head.
[0008] Furthermore, the metering section has several sets of pins, each set of pins is inclined, the pins and the straight line where the screw axis is located are at an angle of 30 degrees, there are eight pins in each set, and they are evenly distributed on a circumference. The bottom diameter of the right end of the metering section gradually changes, while the bottom diameter of the left end remains unchanged, and the outer diameter of the screw ridge remains unchanged.
[0009] Furthermore, a compression section is provided on the right side of the metering section, and the outer diameter and bottom diameter of the compression section remain unchanged.
[0010] Furthermore, a feeding section is provided on the right side of the compression section, the outer diameter of the left end of the feeding section gradually changes, the outer diameter of the right end remains unchanged, and the bottom diameter is of equal depth;
[0011] Furthermore, the leads of the feeding section, compression section, and metering section increase sequentially.
[0012] Furthermore, a connecting section is provided on the right side of the feeding section for connecting the entire screw to an external power source;
[0013] Furthermore, the inlets and outlets of both the first and second mixing heads are chamfered to reduce clogging at the feed and discharge points.
[0014] The beneficial effects of this utility model are:
[0015] The ABS granules are fed into the feed section via a connecting section mounted on an external power source, improving the conveying efficiency of the ABS granules and avoiding bridging. The ABS material enters the compression section along the feed section. The compression section has an appropriate ratio, which neither increases shear heat nor causes uneven feeding, achieving uniform melt compression and reducing the risk of material degradation caused by shear heat. The material enters the metering section, where it is sheared and vented by several sets of inclined pins, enhancing the dispersion and mixing ability of the ABS melt and reducing product defects. The lead increases sequentially in the feeding section, compression section, and metering section, enhancing the melt homogenization ability, ensuring stable output pressure, and reducing the risk of carbonization caused by excessive shear. The material enters the mixing section, where it is mixed more evenly by several anti-sloping grooves in the first mixing head, reducing the generation of bubbles. The material is rectified by the discharge sloping grooves in the second mixing head, allowing for smoother discharge from the screw, resulting in uniform plasticization and reducing the occurrence of product defects.
[0016] The integral screw is made of 38CrMoAlA nitrided steel with nitriding treatment on the surface, which extends the barrel life and reduces energy consumption. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of a special screw for processing ABS battery shells according to a utility model.
[0018] Figure 2 This is a schematic diagram of the mixing section structure of a special screw for processing ABS battery shells according to a utility model.
[0019] Figure 3 This is a schematic diagram of the cross-sectional structure of the metering section of a special screw for processing ABS battery shells, which is a utility model.
[0020] In the diagram: 1. Connecting section; 2. Feeding section; 3. Compression section; 4. Metering section; 5. Mixing section; 6. Pin; 7. First mixing head; 8. Second mixing head; 9. Reverse sloping groove; 10. Discharge sloping groove. Detailed Implementation
[0021] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0022] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.
[0024] Example 1
[0025] This utility model provides a special screw for processing ABS battery shells, including a mixing section 5. The mixing section includes a first mixing head 7 and a second mixing head 8. The first mixing head 7 is provided with a reverse slant groove 9. The second mixing head 8 is provided on the left side of the first mixing head 7. The second mixing head 8 is provided with a discharge slant groove 10. The metering section 4 is provided on the right side of the first mixing head 7. The metering section 4 is provided with a pin 6.
[0026] Furthermore, the discharge slant 10 is set at an angle, and the angle between the discharge slant 10 and the straight line where the screw axis is located is 45 degrees. There are several discharge slant 10s, and they are set in parallel on the surface of the second mixing head 8.
[0027] Furthermore, the first mixing head 7 is provided with a number of anti-sloping grooves 9. The anti-sloping grooves 9 are inclined and the angle between the anti-sloping grooves 9 and the straight line where the screw axis is located is 30 degrees. There are a number of anti-sloping grooves 9, and they are arranged in parallel on the surface of the first mixing head 7.
[0028] Furthermore, there are several sets of pins 6 on the metering section 4. Each set of pins 6 is set at an angle. The angle between the pin 6 and the straight line where the screw axis is located is 30 degrees. There are eight pins 6 in each set, which are evenly distributed on a circumference. The bottom diameter of the right end of the metering section 4 gradually changes, while the bottom diameter of the left end remains unchanged, and the outer diameter of the screw ridge remains unchanged.
[0029] Furthermore, a compression section 3 is provided on the right side of the metering section 4, with the outer diameter and bottom diameter of the compression section 3 remaining unchanged.
[0030] Furthermore, a feeding section 2 is provided on the right side of the compression section 3. The outer diameter of the left end of the feeding section 2 gradually changes, while the outer diameter of the right end remains unchanged, and the bottom diameter is of equal depth.
[0031] Furthermore, the leads of the feeding section 2, the compression section 3, and the metering section 4 increase sequentially;
[0032] Furthermore, a connecting section 1 is provided on the right side of the feeding section 2 for connecting the entire screw to an external power source;
[0033] Furthermore, the inlet and outlet of both the first mixing head 7 and the second mixing head 8 are chamfered to reduce blockage at the feed and discharge points.
[0034] Working principle:
[0035] During use, the entire screw extends into the barrel and is installed on an external power source through the connecting section 1. Material is fed in from the feeding section to improve the conveying efficiency of ABS granules and avoid bridging. The ABS material enters the compression section 3 along the feeding section. The compression section 3 has an appropriate ratio, which will not increase shear heat or cause uneven feeding, so as to achieve uniform compression of the melt and reduce the risk of material degradation caused by shear heat. The material enters the metering section 4. The material is sheared and degassed by several sets of inclined pins 6, which enhances the dispersion and mixing ability of the ABS melt and reduces product defects. In the feeding section 2, compression section 3 and metering section 4, the lead increases in sequence to enhance the homogenization ability of the melt, ensure stable output pressure and reduce the risk of carbonization caused by excessive shearing. The material enters the mixing section. Through several anti-sloping grooves 9 of the first mixing head 7, the material is mixed more evenly and the generation of bubbles is reduced. The material is rectified by the discharge sloping grooves 10 of the second mixing head 8 and discharged from the screw more smoothly, resulting in uniform plasticization and reducing the occurrence of product defects.
[0036] The integral screw is made of 38CrMoAlA nitrided steel with nitriding treatment on the surface, which extends the barrel life and reduces energy consumption.
[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. The various components mentioned in this utility model are common technologies in the existing field. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A special screw for processing ABS battery casings, characterized in that, The system includes a mixing section, which includes a first mixing head and a second mixing head. The first mixing head is provided with a reverse sloping groove, and the second mixing head is provided on the left side of the first mixing head. The second mixing head is provided with a discharge sloping groove, and the metering section is provided on the right side of the first mixing head. The metering section is provided with a pin.
2. The special screw for processing ABS battery casings according to claim 1, characterized in that, The discharge slant is inclined, and the angle between the discharge slant and the straight line where the screw axis is located is 45 degrees. There are several discharge slants, which are arranged in parallel on the surface of the second mixing head.
3. The special screw for processing ABS battery casings according to claim 2, characterized in that, The first mixing head is provided with a plurality of anti-sloping grooves, which are inclined and the angle between the anti-sloping groove and the straight line where the screw axis is located is 30 degrees. There are a plurality of anti-sloping grooves, which are arranged in parallel on the surface of the first mixing head.
4. The special screw for processing ABS battery casings according to claim 3, characterized in that, The metering section has several sets of pins, each set of pins is inclined, the pins and the straight line where the screw axis is located are at an angle of 30 degrees, there are eight pins in each set, and they are evenly distributed on a circumference. The bottom diameter of the right end of the metering section gradually changes, while the bottom diameter of the left end remains unchanged, and the outer diameter of the screw ridge remains unchanged.
5. A special screw for processing ABS battery casings according to claim 4, characterized in that, A compression section is provided on the right side of the metering section, and the outer diameter and bottom diameter of the compression section remain unchanged.
6. A special screw for processing ABS battery casings according to claim 5, characterized in that, A feeding section is provided on the right side of the compression section. The outer diameter of the left end of the feeding section gradually changes, while the outer diameter of the right end remains unchanged, and the bottom diameter is of equal depth.
7. A special screw for processing ABS battery casings according to claim 6, characterized in that, The lead of the feeding section, compression section, and metering section increases sequentially.
8. A special screw for processing ABS battery casings according to claim 7, characterized in that, A connecting section is provided on the right side of the feeding section for connecting the entire screw to an external power source.
9. A special screw for processing ABS battery casings according to claim 8, characterized in that, The inlet and outlet of both the first and second mixing heads are chamfered to reduce clogging at the feed and discharge points.