CN215397126U - Forming device of lithium battery negative electrode material graphite crucible - Google Patents
Forming device of lithium battery negative electrode material graphite crucible Download PDFInfo
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- CN215397126U CN215397126U CN202121116984.1U CN202121116984U CN215397126U CN 215397126 U CN215397126 U CN 215397126U CN 202121116984 U CN202121116984 U CN 202121116984U CN 215397126 U CN215397126 U CN 215397126U
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Abstract
The invention belongs to the technical field of crucible production, and particularly relates to a forming device of a graphite crucible made of a lithium battery negative electrode material, which comprises a base, a top forming template, an outer membrane cylinder and a bottom forming template, wherein the top forming template is arranged on the base; the bottom forming template extends into the outer film cylinder through the upper end opening of the outer film cylinder. In the structure, the top forming template is positioned below the bottom forming template, and the core column is fixed on the base; therefore, after the pressing forming, the bottom of the crucible body faces upwards, so that the top of the crucible body can be prevented from being damaged in the demolding process; meanwhile, the bottom forming template moves downwards in the pressing forming process to realize pressing, so that the crucible body obtained after pressing is compact, and the overall quality is effectively improved.
Description
Technical Field
The invention belongs to the technical field of crucible production, and particularly relates to a forming device of a lithium battery cathode material graphite crucible.
Background
The production of the graphite cathode material mainly uses an Acheson and internal-series graphitizing furnace, the graphite cathode material is filled into a graphite crucible for graphitization treatment, and carbon atoms are changed from thermodynamically unstable two-dimensional disordered overlapping arrangement into three-dimensional ordered overlapping arrangement.
With the development of electric automobiles and other electronic equipment, lithium batteries are widely applied; the negative electrode material of the lithium battery requires a large number of crucibles in the production process. When the existing crucible is produced, compression molding is usually adopted; in the press molding, a paste for molding is added to a mold, and then a crucible body is obtained by pressing. However, the method and the device adopted in the current compression molding can only compress a single-hole crucible, and have the advantages of less material loading, low yield, poor quality and high production cost, and can not particularly adapt to the production requirement of the inner-string graphitization furnace.
Disclosure of Invention
Aiming at the technical problem, the invention provides a forming device of a graphite crucible for a negative electrode material of a lithium battery.
In order to solve the technical problems, the invention adopts the technical scheme that:
a forming device of a lithium battery cathode material graphite crucible comprises a base, a top forming template, an outer membrane cylinder and a bottom forming template, wherein the top forming template is arranged on the base, a core column is fixed on the base, the top forming template is in sliding connection with the core column, the lower end of the outer membrane cylinder is connected with the top forming template or the base, and an opening at the lower end of the outer membrane cylinder is plugged through the top forming template; the bottom forming template extends into the outer film cylinder through the upper end opening of the outer film cylinder.
The lower end of the outer film cylinder is connected with the top molding template or the base through a locking mechanism.
The locking mechanism comprises a locking ring and a first telescopic cylinder, the locking ring is rotatably connected with the base, two ends of the first telescopic cylinder are respectively hinged with the base and the locking ring, and the locking ring is driven to rotate by the extension of the first telescopic cylinder; the lock ring is provided with lock teeth, and the lower end of the outer membrane cylinder is provided with a corresponding bulge.
The bottom of base is equipped with moving mechanism, can drive the base through moving mechanism and remove.
The positioning mechanism can limit the movement of the base; the positioning mechanism is a lifting column, the lower end of the lifting column is fixedly connected with the ground, a positioning column is arranged at the upper end of the lifting column, a corresponding positioning hole is formed in the base, and the positioning column can extend into the positioning hole.
The connecting cover is connected with the rack, the connecting cover is connected with the outer membrane cylinder through a second telescopic cylinder, two ends of the second telescopic cylinder are fixedly connected or hinged with the connecting cover and the outer membrane cylinder respectively, and the outer membrane cylinder can be driven to move through the second telescopic cylinder;
the connecting cover is fixedly provided with a hydraulic cylinder, the hydraulic cylinder is connected with the bottom forming template, and the bottom forming template can be driven to move through the hydraulic cylinder.
The connecting cover is connected with the rack through a lifting mechanism, and the connecting cover can be driven to lift through the lifting mechanism; an opening is arranged on the connecting cover.
The outer film cylinder is cylindrical or square; the core column is conical, and the top of the core column is hemispherical; the core column is provided with at least two.
A processing method of a lithium battery negative electrode material crucible comprises the following steps:
s1, moving the top forming template along the core column on the base and placing the top forming template on the base;
s2, connecting the outer membrane cylinder with a base or a top forming template, and plugging an opening at the lower end of the outer membrane cylinder through the top forming template;
s3, adding a paste into the outer film cylinder;
s4, after the paste is added, the bottom forming template is driven to move by a hydraulic cylinder or a press to carry out compression forming, and a crucible body is obtained after the compression forming;
s5, removing the bottom molding template and the outer film cylinder; the top forming template and the crucible body are lifted by the lifting device, so that the demolding is realized.
In said S1: and the top forming template and the core column are coated with release agents.
Compared with the prior art, the invention has the following beneficial effects:
the top shaping template sets up on the base, is fixed with the stem on the base, top shaping template and stem sliding connection, and the lower extreme and the top shaping template or the base of adventitia section of thick bamboo are connected, through the opening of top shaping template shutoff adventitia section of thick bamboo lower extreme. After the compression molding, the top molding template is lifted, so that the demolding can be realized, and the operation is simple and convenient.
Meanwhile, in the structure, the top forming template is positioned below the bottom forming template, and the core column is fixed on the base; therefore, after press forming, the bottom of the crucible body faces upward, so that the top of the crucible body can be prevented from being damaged during demolding. Meanwhile, the bottom forming template moves downwards in the pressing forming process to realize pressing, so that the crucible body obtained after pressing is compact, and the overall quality is effectively improved.
The lower end of the outer film cylinder can be quickly connected/separated with the top forming template or the base through the locking mechanism, and the convenience degree and the production efficiency in the use process can be improved.
The bottom of base is equipped with moving mechanism, can drive the base through moving mechanism and remove, can remove appointed station as required, conveniently transports and produces.
The outer film cylinder and the bottom forming template can move, and can be pressed and formed and separated, so that a set of complete press forming device is formed.
The core column is in a conical shape, and the top of the core column is in a hemispherical shape, so that the core column can be conveniently demoulded and pressed to be formed.
The number of the core columns can be determined according to the number of the holes on the crucible; the number of the core columns is at least two, and the crucible with the multiple holes can be pressed.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic illustration of the demolded condition of the present invention;
FIG. 3 is a schematic structural view of the locking mechanism of the present invention;
FIG. 4 is an enlarged view of a portion of FIG. 3 at A;
FIG. 5 is a schematic view of the positioning mechanism of the present invention;
FIG. 6 is a cross-sectional view of the present invention;
FIG. 7 is a partial enlarged view at B in FIG. 6;
wherein: the crucible forming device comprises a base 1, a positioning hole 100, a top forming template 2, an outer membrane cylinder 3, a protrusion 300, a bottom forming template 4, a core column 5, a locking mechanism 6, a locking ring 600, a first telescopic cylinder 601, a locking tooth 602, a moving mechanism 7, a positioning mechanism 8, a positioning column 800, a frame 9, a connecting cover 10, an opening 1000, a second telescopic cylinder 11, a hydraulic cylinder 12, a crucible body 13 and a lifting mechanism 14.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 to 2, a forming device for a graphite crucible made of a negative electrode material of a lithium battery comprises a base 1, a top forming template 2, an outer membrane cylinder 3 and a bottom forming template 4, wherein the top forming template 2 is arranged on the base 1, a core column 5 is fixed on the base 1, the top forming template 2 is in sliding connection with the core column 5, the lower end of the outer membrane cylinder 3 is connected with the top forming template 2 or the base 1, and an opening at the lower end of the outer membrane cylinder 3 is sealed by the top forming template 2; the bottom forming template 4 extends into the outer film cylinder 3 through the upper end opening of the outer film cylinder 3.
When in use, the top forming template 2 is placed on the base 1 along the core column 5 in a sliding manner; then, the outer film cylinder 3 is connected with the top molding template 2 or the base 1, and a molding cavity can be formed after the connection; and then adding a paste into the outer film cylinder 3, and driving the bottom forming template 4 to press and form by a press.
After the pressing forming, the bottom forming template 4 is moved upwards, and the outer film cylinder 3 is separated from the top forming template 2 or the base 1; and finally, hoisting the top forming template 2 by a lifting appliance, and driving the pressed crucible body 13 to move together in the lifting process of the top forming template 2 so as to realize demoulding.
The hole forming of the crucible body 13 can be realized through the core column 5, the top surface forming of the crucible body 13 can be realized through the top forming template 2, the bottom surface forming of the crucible body 13 can be realized through the bottom forming template 4, and the forming of the appearance of the crucible body 13 can be realized through the outer film tube 3. Therefore, the crucible body 13 with good molding and quality can be obtained by the arrangement.
Furthermore, in order to conveniently realize the connection between the outer film cylinder 3 and the top molding template 2 or the base 1, a corresponding locking mechanism 6 is arranged; the locking mechanism 6 can be realized in various ways, and any one of the locking mechanisms can be adopted as long as the outer film cylinder 3 can be conveniently connected with the top molding template 2 or the base 1.
Further, the locking mechanism 6 preferably adopts the following structure:
as shown in fig. 3 and 4, the locking mechanism 6 comprises a locking ring 600 and a first telescopic cylinder 601, the locking ring 600 is rotatably connected with the base 1, two ends of the first telescopic cylinder 601 are respectively hinged with the base 1 and the locking ring 600, and the locking ring 600 is driven to rotate by the extension and contraction of the first telescopic cylinder 601; the locking ring 600 is provided with locking teeth 602, and the lower end of the outer film cylinder 3 is provided with corresponding protrusions 300.
The outer membrane cylinder 3 is placed on the top forming template 2 or the base 1, then the first telescopic cylinder 601 extends out to drive the locking ring 600 to rotate, the locking teeth 602 on the locking ring 600 rotate to the positions above the protrusions 300 of the outer membrane cylinder 3, and the protrusions 300 are blocked by the locking teeth 602, so that the movement of the outer membrane cylinder 3 is limited, and the connection of the outer membrane cylinder 3 and the top forming template 2 or the base 1 is further realized.
When the first telescopic cylinder 601 retracts to drive the locking ring 600 to rotate reversely, the locking teeth 602 on the locking ring 600 are removed from the upper part of the protrusions 300 of the outer film cylinder 3 and do not block the protrusions 300 any more, and at this time, the outer film cylinder 3 can be separated from the top forming template 2 or the base 1.
Further, the bottom of the base 1 is provided with a moving mechanism 7, and the base 1 can be driven to move by moving the moving mechanism 7. The transfer of different stations can be realized, and the production is convenient. The moving mechanism 7 may employ a common rail-wheel moving mechanism, a rack-and-pinion moving mechanism, and other moving mechanisms.
Further, as shown in fig. 5, the device further comprises a positioning mechanism 8, and the movement of the base 1 can be limited by the positioning mechanism 8; the positioning mechanism 8 is a lifting column, the lower end of the lifting column is fixedly connected with the ground, the upper end of the lifting column is provided with a positioning column 800, the base 1 is provided with a corresponding positioning hole 100, and the positioning column 800 can extend into the positioning hole 100.
The positioning mechanism 8 is arranged at a corresponding station as required, and when the moving mechanism 7 drives the base 1 to move to the station, the lifting column rises upwards, so that the positioning column 800 on the lifting column extends into the positioning hole 100, thereby playing a positioning role; when the base 1 needs to be moved, the lifting column moves down, so that the positioning column 800 on the lifting column moves out of the positioning hole 100.
Further, as shown in fig. 6 and 7, the outer membrane tube type gas-liquid separator further comprises a frame 9 and a connecting cover 10, wherein the connecting cover 10 is connected with the frame 9, the connecting cover 10 is connected with the outer membrane tube 3 through a second telescopic cylinder 11, two ends of the second telescopic cylinder 11 are fixedly connected or hinged with the connecting cover 10 and the outer membrane tube 3 respectively, and the outer membrane tube 3 can be driven to move through the second telescopic cylinder 11;
a hydraulic cylinder 12 is fixed on the connecting cover 10, the hydraulic cylinder 12 is connected with the bottom forming template 4, and the bottom forming template 4 can be driven to move through the hydraulic cylinder 12.
When in use, the outer membrane cylinder 3 is driven to move downwards by the second telescopic cylinder 11 to be connected with the top forming template 2 or the base 1; after the paste is added, the bottom forming template 4 is driven to move downwards by the hydraulic cylinder 12 for pressing; after pressing, the hydraulic cylinder 12 drives the bottom forming template 4 to move upwards, and the second telescopic cylinder 11 drives the outer membrane cylinder 3 to move upwards. Therefore, through the structural arrangement, the press forming can be facilitated.
Further, the connecting cover 10 and the frame 9 can be fixedly connected; naturally, in order to realize adjustment, a lifting mechanism is arranged between the connecting cover 10 and the frame 9, and the lifting mechanism can drive the connecting cover 10 to lift, so that adjustment is realized.
The lifting mechanism can adopt common lifting structures such as a screw rod lifter, a lifting column and the like.
Furthermore, the connecting cover 10 is sleeved outside the outer membrane cylinder 3, integrity can be improved, and the outer membrane cylinder 3 can extend into the connecting cover after pressing, so that a protection effect is achieved.
Further, the connecting cover 10 is provided with an opening 1000, so that materials can be conveniently added into the outer membrane cylinder 3 through the opening 1000, and the adding condition of the materials can be observed on the other side.
Further, the outer film cylinder 3 is cylindrical or square cylinder shaped, and can be processed into a crucible with a square or round shape.
Further, the shape of stem 5 is the tapered, and stem 5 top is the hemisphere, can conveniently suppress on the one hand, and on the other hand can conveniently the drawing of patterns.
Further, the number and the positions of the core columns 5 can be set according to requirements, and a porous crucible can be prepared; if a ten-hole crucible needs to be processed, ten core columns 5 are arranged; moreover, the stem 5 can be adjusted and set accordingly according to the required hole position and hole diameter.
A processing method of a lithium battery negative electrode material crucible comprises the following steps:
s1, moving the top forming template 2 along the core column 5 on the base 1 and placing the top forming template on the base 1;
s2, connecting the outer membrane cylinder 3 with the base 1 or the top forming template 2, and plugging an opening 1000 at the lower end of the outer membrane cylinder 3 through the top forming template 2;
s3, adding a paste into the outer film cylinder 3;
s4, after adding the paste, driving the bottom forming template 4 to move through a hydraulic cylinder 12 or a press to perform press forming, and obtaining a crucible body 13 after the press forming;
s5, removing the bottom forming template 4 and the outer film cylinder 3; the top forming template 2 and the crucible body 13 are lifted by a lifting device, so that demoulding is realized.
By adopting the processing method, the demoulding can be convenient, and the press forming quality can be ensured.
Further, in S1: and the top forming template 2 and the core column 5 are coated with release agents, so that the demoulding is convenient.
Although only the preferred embodiments of the present invention have been described in detail, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art, and all changes are encompassed in the scope of the present invention.
Claims (8)
1. The utility model provides a forming device of lithium cell negative pole material graphite crucible which characterized in that: the forming die comprises a base (1), a top forming die plate (2), an outer membrane cylinder (3) and a bottom forming die plate (4), wherein the top forming die plate (2) is arranged on the base (1), a core column (5) is fixed on the base (1), the top forming die plate (2) is in sliding connection with the core column (5), the lower end of the outer membrane cylinder (3) is connected with the top forming die plate (2) or the base (1), and an opening at the lower end of the outer membrane cylinder (3) is plugged through the top forming die plate (2); the bottom molding template (4) extends into the outer film cylinder (3) through the upper end opening of the outer film cylinder (3).
2. The apparatus as claimed in claim 1, wherein the graphite crucible is formed by: the lower end of the outer film cylinder (3) is connected with the top molding template (2) or the base (1) through a locking mechanism (6).
3. The apparatus as claimed in claim 2, wherein the graphite crucible is formed by: the locking mechanism (6) comprises a locking ring (600) and a first telescopic cylinder (601), the locking ring (600) is rotatably connected with the base (1), two ends of the first telescopic cylinder (601) are respectively hinged with the base (1) and the locking ring (600), and the locking ring (600) is driven to rotate by the extension of the first telescopic cylinder (601); the locking ring (600) is provided with locking teeth (602), and the lower end of the outer membrane cylinder (3) is provided with a corresponding bulge (300).
4. The apparatus as claimed in claim 1, wherein the graphite crucible is formed by: the bottom of the base (1) is provided with a moving mechanism (7), and the base (1) can be driven to move through the moving mechanism (7).
5. The apparatus as claimed in claim 1 or 4, wherein: the device also comprises a positioning mechanism (8), and the movement of the base (1) can be limited through the positioning mechanism (8); the positioning mechanism (8) is a lifting column, the lower end of the lifting column is fixedly connected with the ground, a positioning column (800) is arranged at the upper end of the lifting column, a corresponding positioning hole (100) is formed in the base (1), and the positioning column (800) can extend into the positioning hole (100).
6. The apparatus as claimed in claim 1, wherein the graphite crucible is formed by: the outer membrane tube is characterized by further comprising a rack (9) and a connecting cover (10), wherein the connecting cover (10) is connected with the rack (9), the connecting cover (10) is connected with the outer membrane tube (3) through a second telescopic cylinder (11), two ends of the second telescopic cylinder (11) are fixedly connected or hinged with the connecting cover (10) and the outer membrane tube (3) respectively, and the outer membrane tube (3) can be driven to move through the second telescopic cylinder (11);
and a hydraulic cylinder (12) is fixed on the connecting cover (10), the hydraulic cylinder (12) is connected with the bottom forming template (4), and the bottom forming template (4) can be driven to move through the hydraulic cylinder (12).
7. The apparatus as claimed in claim 6, wherein the graphite crucible is formed by: the connecting cover (10) is connected with the rack (9) through a lifting mechanism, and the connecting cover (10) can be driven to lift through the lifting mechanism; an opening (1000) is arranged on the connecting cover (10).
8. The apparatus as claimed in claim 1, wherein the graphite crucible is formed by: the outer film cylinder (3) is cylindrical or square; the shape of the core column (5) is conical, and the top of the core column (5) is hemispherical; the number of the core columns (5) is at least two.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121116984.1U CN215397126U (en) | 2021-05-24 | 2021-05-24 | Forming device of lithium battery negative electrode material graphite crucible |
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| CN202121116984.1U CN215397126U (en) | 2021-05-24 | 2021-05-24 | Forming device of lithium battery negative electrode material graphite crucible |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113172927A (en) * | 2021-05-24 | 2021-07-27 | 平定县兴鑫新材料科技有限公司 | Forming device and processing method for graphite crucible of lithium battery negative electrode material |
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2021
- 2021-05-24 CN CN202121116984.1U patent/CN215397126U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113172927A (en) * | 2021-05-24 | 2021-07-27 | 平定县兴鑫新材料科技有限公司 | Forming device and processing method for graphite crucible of lithium battery negative electrode material |
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