Injection mold for lithium battery shell of new energy automobile

Abstract

The invention discloses a new energy automobile lithium battery shell injection mold, and relates to the field of injection molds, the new energy automobile lithium battery shell injection mold comprises a fixed mold and a movable mold, the fixed mold is sequentially composed of a fixed mold base, an air distribution plate and a fixed mold support used for supporting the fixed mold base, a fixed mold core is installed in the fixed mold base, and a plurality of air rods are arranged on one side of the air distribution plate; the movable mold is sequentially composed of a movable mold base, an ejector plate and a movable mold support used for supporting the movable mold base, and a movable mold core is installed in the movable mold base. The mold unloading mechanism is composed of a bearing plate, a mold ejecting rod, an L-shaped connecting block and a linkage assembly; through cooperative use of the rotating rod, the L-shaped connecting block and the mold ejecting rod, a mold core can be rapidly ejected out, the mold core can be conveniently replaced, time and labor cost can be saved, after the mold core is separated from the groove, the mold core is supported through the rotating rod and the L-shaped connecting block, the mold core is prevented from directly hitting the mold support, and the mold core is prevented from being damaged. And an existing injection mold can be modified, so that the manufacturing cost can be saved.

Description

Technical Field

[0001] The present invention relates to the technical field related to injection molds, and specifically to an injection mold for a lithium battery shell of a new energy vehicle. Background Art

[0002] The lithium battery casing is an important component of the lithium battery. It plays a key role in protecting the battery cell and circuit. Since the lithium battery casing is usually made of plastic material, the injection molding process is often used to make the lithium battery casing, which is inseparable from the injection mold.

[0003] In the prior art, injection molds are generally used with different mold cores. By installing the mold core into the groove provided on the mold base, the injection mold can be used with different mold cores to perform injection molding of different products. However, in actual use, the following deficiencies still exist: when replacing a new mold core, the old mold core needs to be removed first. However, due to reasons such as excessive mold clamping pressure and too tight combination of the mold base and the mold core, the mold core may be stuck in the groove and cannot be removed. In this case, it may be necessary to remove the mold base first and then use tools to pry out the mold core. However, the above method not only easily causes damage to the mold, but also wastes time and labor costs, and slows down production progress. Summary of the Invention

[0004] In order to solve the defects of the prior art, the present invention provides an injection mold for a lithium battery shell of a new energy vehicle.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: The present invention provides an injection mold for a lithium battery shell of a new energy vehicle, comprising a fixed mold and a movable mold, wherein the fixed mold is sequentially composed of a fixed mold base, an air distribution plate, and a fixed mold bracket for supporting the fixed mold base, wherein a fixed mold core is installed in the fixed mold base, and a plurality of gas rods are provided on one side of the air distribution plate, and the movable mold is sequentially composed of a movable mold base, an ejector plate, and a movable mold bracket for supporting the movable mold base, wherein a movable mold core is installed in the movable mold base, and a plurality of ejector pins are provided on one side of the ejector plate; The mold unloading mechanism consists of a supporting plate, a top mold rod, an L-shaped connecting block and a linkage component. The linkage component drives the L-shaped connecting block to rotate so that the L-shaped connecting block does not hinder the removal of the mold core. The top mold rod can be detachably installed on the supporting plate, and the L-shaped connecting block can be detachably installed on the fixed mold core or the movable mold core.

[0006] As a preferred technical solution of the present invention, the linkage assembly includes a telescopic cylinder, a transmission tooth plate and three rotating rods, the three rotating rods are all rotatably arranged on the carrying plate, one end of the rotating rod is detachably connected to the L-shaped connecting block, and the three rotating rods are respectively a single-groove driving rod, a double-groove transmission rod and a single-groove driven rod, the double-groove transmission rod is respectively connected to the single-groove driving rod and the single-groove driven rod through a transmission belt, and a transmission gear meshing with the transmission tooth plate is sleeved and fixed on the outer wall of the single-groove driving rod; A connecting piece is provided on one side of the transmission gear plate, and the piston end of the telescopic cylinder is connected to the connecting piece.

[0007] As a preferred technical solution of the present invention, the linkage assembly also includes a guide bolt screwed on the bearing plate, and the transmission tooth plate is provided with a sliding groove that slides with the bolt head of the guide bolt, and one side of the sliding groove is connected to a guide hole that slides with the guide bolt.

[0008] As a preferred technical solution of the present invention, the fixed mold core and the movable mold core are provided with two matching grooves matching the L-shaped connecting block, and the backs of the fixed mold core and the movable mold core are detachably installed with fixed sleeves matching the top mold rod, and the fixed mold core is provided with at least one air hole slidingly matched with the air rod, and the air hole includes an inner hole, a tapered hole and an outer hole, and the two ends of the tapered hole are respectively connected to the inner hole and the outer hole.

[0009] As a preferred technical solution of the present invention, the fixed mold base and the movable mold base are provided with a matching groove 1 that matches the L-shaped connecting block, the depth of the matching groove 1 is greater than the depth of the matching groove 2, and the fixed mold base and the movable mold base are also provided with a mounting hole that can accommodate the fixing sleeve to pass through.

[0010] As a preferred technical solution of the present invention, an air supply path is provided in the air distribution plate, and an air supply interface connected to the air supply path is provided on the air distribution plate. One end of the air distribution plate is also provided with a connection interface for connecting to an external air supply device, and one end of the air rod is detachably connected to the air supply interface, and the other end is provided with an exhaust hole.

[0011] As a preferred technical solution of the present invention, it also includes a guide assembly, which includes a guide rod, which is connected to the fixed mold bracket or the movable mold bracket, and the outer sleeve of the guide rod is provided with a buffer spring, which is arranged between the air distribution plate and the fixed mold base or the ejector plate and the movable mold base.

[0012] As a preferred technical solution of the present invention, the air distribution plate and the ejector plate are both provided with avoidance grooves, through which the air distribution plate and the ejector plate will not hinder the movement of the supporting plate, and the four top corners of the air distribution plate and the ejector plate are both provided with sliding holes that slide with the guide rod.

[0013] As a preferred technical solution of the present invention, a mounting groove for installing a linkage component is provided on the supporting plate, the telescopic cylinder is installed in the mounting groove, and a positioning rod for connecting to an external driving mechanism is symmetrically installed on one side of the supporting plate away from the fixed mold base or the movable mold base.

[0014] As a preferred technical solution of the present invention, the fixed mold bracket, movable mold bracket and the middle of the air distribution plate are all provided with a center hole, the fixed mold bracket and the movable mold bracket are both provided with positioning holes that slide with the positioning rod, and the fixed mold bracket is also provided with an installation through hole.

[0015] The beneficial effects of the present invention are: 1. This new energy vehicle lithium battery shell injection mold drives the ejector rod and the rotating rod through the bearing plate, so that the rotating rod and the L-shaped connecting block move the mold core out of the groove, and at the same time, the mold core is ejected with the help of the ejector rod. The two work together to quickly eject the mold core, making it easy to replace the mold core and saving time and labor costs. After the mold core is out of the groove, the rotating rod and the L-shaped connecting block are used to support the mold core to prevent the mold core from directly hitting the mold bracket. In addition, it can be modified on the existing injection mold, which can save manufacturing costs.

[0016] 2. This new energy vehicle lithium battery shell injection mold extends the piston rod of the telescopic cylinder, so that the connecting piece drives the transmission tooth plate to engage with the transmission gear, and uses the transmission belt to rotate the rotating rod, which drives the L-shaped connecting block to rotate. The L-shaped connecting block is rotated to a position that does not hinder the removal of the mold core, and can simultaneously control the rotation of the L-shaped connecting block connected to the rotating rod, which can save time.

[0017] 3. This type of new energy vehicle lithium battery shell injection mold drives the gas rod to move through the gas distribution plate to expose the exhaust hole. The gas flowing through the air supply path enters the gas rod and flows into the cavity of the fixed mold through the exhaust hole, blowing towards the formed battery shell, providing thrust for the battery shell to be separated from the cavity. Combined with the thrust provided by the gas rod moving into the fixed mold, the battery shell can be separated from the cavity more quickly, thereby improving the demolding efficiency.

[0018] 4. The tapered holes in this new energy vehicle lithium battery shell injection mold can make the movement direction of the gas distribution plate more flexible, making it convenient for users to select the appropriate external drive mechanism according to specific circumstances, and can effectively avoid motion interference.

[0019] 5. This new energy vehicle lithium battery shell injection mold uses the sliding cooperation between the guide bolt, the guide hole and the sliding groove to guide and limit the transmission gear plate. The guide structure composed of the guide bolt, the guide hole and the sliding groove is not only convenient for disassembly, but also has a simple structure, easy parts availability and low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings: Figure 1 This is a schematic structural diagram from the first perspective of an injection mold for a new energy vehicle lithium battery housing according to the present invention; Figure 2 This is a schematic structural diagram from a second perspective of an injection mold for a lithium battery housing of a new energy vehicle according to the present invention; Figure 3 This is a schematic diagram of the movable mold structure of an injection mold for a new energy vehicle lithium battery shell of the present invention; Figure 4 This is a structural diagram of a load-bearing plate, ejector plate, and movable mold support of an injection mold for a lithium battery housing of a new energy vehicle according to the present invention; Figure 5 This is a schematic diagram of the structure of a demoulding mechanism and ejector plate of an injection mold for a new energy vehicle lithium battery housing according to the present invention; Figure 6 This is a structural schematic diagram of a movable mold base of an injection mold for a new energy vehicle lithium battery housing according to the present invention; Figure 7 This is a structural schematic diagram of a demoulding mechanism of an injection mold for a new energy vehicle lithium battery housing according to the present invention; Figure 8 This invention is a new energy vehicle lithium battery shell injection mold Figure 7 Enlarged view of point A in the middle; Figure 9 This is a structural schematic diagram of the movable mold core of an injection mold for a new energy vehicle lithium battery housing according to the present invention; Figure 10 This is a schematic diagram of the fixed mold structure of an injection mold for a new energy vehicle lithium battery shell of the present invention; Figure 11 This is a structural diagram of the bearing plate, gas distribution plate and fixed mold support of an injection mold for a new energy vehicle lithium battery shell of the present invention; Figure 12 This is a cross-sectional view of the fixed mold core of an injection mold for a new energy vehicle lithium battery shell according to the present invention.

[0021] In the figure: 1. Fixed mold; 11. Fixed mold base; 12. Air distribution plate; 13. Fixed mold bracket; 14. Fixed mold core; 15. Gas rod; 151. Exhaust hole; 16. Tapered hole; 17. Mounting through hole; 2. Moving mold; 21. Moving mold base; 22. Ejector plate; 23. Moving mold bracket; 24. Moving mold core; 25. Ejector; 3. Guide assembly; 4. Positioning rod; 5. Matching groove 1; 6. Fixed sleeve; 7. Demolding mechanism; 71. Loading plate; 711. Mounting groove; 72. Ejector rod; 73. L-shaped connecting block; 74. Single-slot driven rod; 75. Double-slot transmission rod; 76. Telescopic cylinder; 77. Single-slot driving rod; 771. Transmission gear; 78. Transmission gear plate; 781. Connecting piece; 782. Guide hole; 79. Guide bolt; 8. Matching groove 2; 9. Center hole. DETAILED DESCRIPTION

[0022] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0023] Example: Figure 1-Figure 4 and Figure 10 As shown, the present invention provides an injection mold for a lithium battery shell of a new energy vehicle, comprising a fixed mold 1 and a movable mold 2. The fixed mold 1 is sequentially composed of a fixed mold base 11, an air distribution plate 12, and a fixed mold bracket 13 for supporting the fixed mold base 11. A fixed mold core 14 is installed in the fixed mold base 11, and a plurality of gas rods 15 are provided on one side of the air distribution plate 12. The movable mold 2 is sequentially composed of a movable mold base 21, an ejector plate 22, and a movable mold bracket 23 for supporting the movable mold base 21. A movable mold core 24 is installed in the movable mold base 21, and a plurality of ejector pins 25 are provided on one side of the ejector plate 22. The mold unloading mechanism 7 is composed of a supporting plate 71, a top mold rod 72, an L-shaped connecting block 73 and a linkage component. The L-shaped connecting block 73 is driven to rotate by the linkage component so that the L-shaped connecting block 73 does not hinder the removal of the mold core. The top mold rod 72 is detachably mounted on the supporting plate 71, and the L-shaped connecting block 73 is detachably mounted on the fixed mold core 14 or the movable mold core 24. The L-shaped connecting block 73 can be detachably connected to the fixed mold core 14 or the movable mold core 24 using bolts; the top mold rod 72 can be detachably connected using nuts, etc.

[0024] Among them, such as Figure 5 and Figure 7As shown, the carrier plate 71 is provided with a mounting groove 711 for installing a linkage assembly, the telescopic cylinder 76 is installed in the mounting groove 711, and a positioning rod 4 for connecting to an external driving mechanism is symmetrically installed on the side of the carrier plate 71 away from the fixed mold base 11 or the movable mold base 21. The moving end of the driving mechanism 1 is connected to the positioning rod 4, and the driving mechanism 1 drives the carrier plate 71 to move through the positioning rod 4 (for the convenience of distinction, the external driving mechanism that can drive the carrier plate 71 to move is called the driving mechanism 1).

[0025] Among them, such as Figure 2 、 Figure 10 and Figure 11 As shown, a center hole 9 is provided in the middle of the fixed mold bracket 13, the movable mold bracket 23 and the gas distribution plate 12. Positioning holes that slide with the positioning rod 4 are provided on the fixed mold bracket 13 and the movable mold bracket 23, and a mounting through hole 17 is also provided on the fixed mold bracket 13. The mounting through hole 17 is used to allow the moving end of the external driving mechanism that can drive the gas distribution plate 12 (for the convenience of distinction, the external driving mechanism that can drive the gas distribution plate 12 is referred to as driving mechanism 2) to pass through, such as the piston rod of the hydraulic cylinder or the connecting rod connected by the piston rod driven by the hydraulic cylinder. In addition to the above-mentioned embodiment, other embodiments can also be adopted.

[0026] In this embodiment, the center hole 9 on the fixed mold bracket 13 and the gas distribution plate 12 is used to allow the injection nozzle to pass through, so as to facilitate the connection between the injection nozzle and the gate on the fixed mold 1; and the center hole 9 on the movable mold bracket 23 is used to allow the moving end of the external driving mechanism that can drive the ejector plate 22 (for the convenience of distinction, the external driving mechanism that can drive the ejector plate 22 is referred to as driving mechanism three) to pass through, and the ejector plate 22 is driven by the driving mechanism three, so that the ejector plate 22 drives the ejector 25 to move, and the molded battery shell is ejected by the ejector 25.

[0027] Among them, such as Figure 5 、 Figure 7 and Figure 8 As shown, the linkage assembly includes a telescopic cylinder 76, a transmission tooth plate 78 and three rotating rods. The three rotating rods are rotatably set on the bearing plate 71. One end of the rotating rod is detachably connected to the L-shaped connecting block 73. The three rotating rods are a single-slot driving rod 77, a double-slot transmission rod 75 and a single-slot driven rod 74. The double-slot transmission rod 75 is respectively connected to the single-slot driving rod 77 and the single-slot driven rod 74 through a transmission belt. A transmission gear 771 that meshes with the transmission tooth plate 78 is fixed on the outer wall of the single-slot driving rod 77. A connecting piece 781 is provided on one side of the transmission gear plate 78 , and the piston end of the telescopic cylinder 76 is connected to the connecting piece 781 .

[0028] After unscrewing the bolts connecting the mold core and the L-shaped connecting block 73, the piston rod of the telescopic cylinder 76 extends, causing the connecting piece 781 to drive the transmission tooth plate 78 to engage with the transmission gear 771 for transmission, and the transmission gear 771 drives the single-slot drive rod 77 to rotate, and the transmission belt drives the double-slot drive rod 75 and the single-slot driven rod 74 to rotate. The single-slot drive rod 77, the double-slot transmission rod 75 and the single-slot driven rod 74 drive the L-shaped connecting block 73 to rotate, so that the L-shaped connecting block 73 rotates to a position where it will not hinder the removal of the mold core.

[0029] Among them, such as Figure 8 As shown, the linkage assembly also includes a guide bolt 79 screwed on the bearing plate 71, and a sliding groove is provided on the transmission tooth plate 78, which is slidably matched with the bolt head of the guide bolt 79. A guide hole 782 is provided on one side of the sliding groove, which is slidably matched with the guide bolt 79. The sliding match between the guide bolt 79, the guide hole 782 and the sliding groove is used to guide and limit the transmission tooth plate 78. The guide structure composed of the guide bolt 79, the guide hole 782 and the sliding groove is not only convenient for disassembly, but also has a simple structure, easy-to-obtain parts and low cost.

[0030] Among them, such as Figure 2 and Figure 9 As shown, the fixed mold core 14 and the movable mold core 24 are provided with matching grooves 8 that match the L-shaped connecting block 73, and the fixed mold core 14 and the movable mold core 24 are detachably installed with a fixing sleeve 6 that matches the ejector rod 72 on the back, and the fixed mold core 14 is provided with at least one air hole that slides with the air rod 15, and the air hole includes an inner hole, a tapered hole 16 and an outer hole, and the two ends of the tapered hole 16 are respectively connected to the inner hole and the outer hole; after the ejector rod 72 is inserted into the fixing sleeve 6, it pushes the mold core to eject the mold core from the mold base, and the provided fixing sleeve 6 plays a positioning role.

[0031] In this embodiment, the gas rod 15 and the air hole need to be sealed to prevent the molten liquid from entering the gap between the gas rod 15 and the air hole to form defective products. The setting of the tapered hole 16 can make the moving direction of the gas distribution plate 12 more flexible, which is convenient for users to select a suitable external drive mechanism according to specific circumstances and can effectively avoid motion interference.

[0032] Among them, such as Figure 1 、 Figure 2 、 Figure 6 and Figure 12 As shown, the fixed mold base 11 and the movable mold base 21 are provided with a matching groove 5 that matches the L-shaped connecting block 73. The depth of the matching groove 15 is greater than the depth of the matching groove 2 8. The fixed mold base 11 and the movable mold base 21 are also provided with a mounting hole that can accommodate the fixing sleeve 6 to pass through. The matching groove 15 and the matching groove 2 8 cooperate to form an L-shaped matching groove that matches the L-shaped connecting block 73, which is used to accommodate the L-shaped connecting block 73 so that the L-shaped connecting block 73 does not protrude from the mold core.

[0033] An air supply path is provided in the air distribution plate 12, and an air supply interface connected to the air supply path is provided on the air distribution plate 12. One end of the air distribution plate 12 is also provided with a connection interface for connecting to an external air supply device, and one end of the air rod 15 is detachably connected to the air supply interface, and the other end is provided with an exhaust hole 151. When the exhaust hole 151 is set in a position where it can be covered by the inner hole wall, the air distribution plate 12 drives the air rod 15 to move outside the fixed mold core 14 so that the exhaust hole 151 is located in the tapered hole 16 or moves into the fixed mold core 14 so that the exhaust hole 151 is located in the cavity of the fixed mold core 14, the gas can flow from the exhaust hole 151 to the cavity of the fixed mold core 14; when the exhaust hole 151 is set in the tapered hole 16 or the outer hole area, the air distribution plate 12 drives the air rod 15 to move into the fixed mold core 14 so that the gas can flow from the exhaust hole 151 to the cavity of the fixed mold core 14.

[0034] It should be noted that the gas rod 15 and the gas supply interface can be connected by threads or by snap-on connection, and both can achieve detachable connection. The specific connection method between the gas rod 15 and the gas supply interface is not limited here.

[0035] When the mold is opened, the air distribution plate 12 is driven to move by the driving mechanism 2 to expose the exhaust hole 151, and then the external air supply equipment is opened (or the control valve of the air supply pipeline is opened) to allow the gas to flow through the air supply path into the gas rod 15. The gas flowing into the gas rod 15 flows into the cavity of the fixed mold core 14 through the exhaust hole 151 and blows toward the formed battery shell, providing thrust for the battery shell to be separated from the cavity. Combined with the thrust provided by the gas rod 15 moving into the fixed mold core 14, the battery shell can be separated from the cavity more quickly, thereby improving the efficiency of demolding.

[0036] Among them, such as Figure 1 、 Figure 2 、 Figure 6 and Figure 12 As shown, this embodiment also includes a guide assembly 3, which includes a guide rod. The guide rod is connected to the fixed mold bracket 13 or the movable mold bracket 23. The guide rod outer sleeve is provided with a buffer spring. The buffer spring is arranged between the air distribution plate 12 and the fixed mold base 11 or the ejector plate 22 and the movable mold base 21, and is buffered by the provided buffer spring.

[0037] Among them, such as Figure 5 and Figure 11 As shown, the air distribution plate 12 and the ejector plate 22 are both provided with avoidance grooves, through which the air distribution plate 12 and the ejector plate 22 will not hinder the movement of the supporting plate 71. The four top corners of the air distribution plate 12 and the ejector plate 22 are both provided with sliding holes that slide with the guide rods. The air distribution plate 12 and the ejector plate 22 are guided by the sliding cooperation between the guide rods and the sliding holes.

[0038] During operation, after the mold is opened and demoulding is completed, the driving mechanism drives the carrying plate 71 to move, and the carrying plate 71 drives the ejector rod 72 and the rotating rod, so that the rotating rod and the L-shaped connecting block 73 move the mold core out of the groove, and at the same time, the mold core is ejected with the help of the ejector rod 72. The two cooperate to quickly eject the mold core. After the mold core is out of the groove, the mold core is supported by the rotating rod and the L-shaped connecting block 73. After the mold core is supported by the supporting structure (you can also use a lifting device to connect the mold core to the hook of the lifting device), unscrew the connecting The bolts of the mold core and the L-shaped connecting block 73 start the telescopic cylinder 76, and the piston rod of the telescopic cylinder 76 extends, so that the connecting piece 781 drives the transmission tooth plate 78 to engage with the transmission gear 771 for transmission, and the transmission gear 771 drives the single-slot drive rod 77 to rotate, and the transmission belt drives the double-slot transmission rod 75 and the single-slot driven rod 74 to rotate. The L-shaped connecting block 73 is driven to rotate by the single-slot drive rod 77, the double-slot transmission rod 75 and the single-slot driven rod 74, so that the L-shaped connecting block 73 is rotated to a position where it does not hinder the removal of the mold core, and the mold core can be removed.

[0039] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or substitute equivalents for some of the technical features. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A new energy vehicle lithium battery shell injection mold, characterized in that: include: A fixed mold (1) and a movable mold (2), wherein the fixed mold (1) is sequentially composed of a fixed mold base (11), an air distribution plate (12) and a fixed mold bracket (13) for supporting the fixed mold base (11), a fixed mold core (14) is installed in the fixed mold base (11), and a plurality of air rods (15) are provided on one side of the air distribution plate (12), and the movable mold (2) is sequentially composed of a movable mold base (21), an ejector plate (22) and a movable mold bracket (23) for supporting the movable mold base (21), a movable mold core (24) is installed in the movable mold base (21), and a plurality of ejector pins (25) are provided on one side of the ejector plate (22); The mold unloading mechanism (7) is composed of a supporting plate (71), a top mold rod (72), an L-shaped connecting block (73) and a linkage assembly. The linkage assembly drives the L-shaped connecting block (73) to rotate so that the L-shaped connecting block (73) does not hinder the removal of the mold core. The top mold rod (72) is detachably mounted on the supporting plate (71), and the L-shaped connecting block (73) is detachably mounted on the fixed mold core (14) or the movable mold core (24).

2. The new energy vehicle lithium battery shell injection mold according to claim 1, characterized in that: The linkage assembly includes a telescopic cylinder (76), a transmission tooth plate (78) and three rotating rods. The three rotating rods are all rotatably arranged on the bearing plate (71). One end of the rotating rod is detachably connected to the L-shaped connecting block (73). The three rotating rods are respectively a single-groove driving rod (77), a double-groove driving rod (75) and a single-groove driven rod (74). The double-groove driving rod (75) is respectively connected to the single-groove driving rod (77) and the single-groove driven rod (74) through a transmission belt. A transmission gear (771) meshing with the transmission tooth plate (78) is sleeved and fixed on the outer wall of the single-groove driving rod (77). A connecting piece (781) is provided on one side of the transmission tooth plate (78), and a piston end of the telescopic cylinder (76) is connected to the connecting piece (781).

3. The new energy vehicle lithium battery shell injection mold according to claim 2, characterized in that: The linkage assembly further includes a guide bolt (79) screwed onto the carrier plate (71), and the transmission tooth plate (78) is provided with a sliding groove that is slidably engaged with the bolt head of the guide bolt (79), and one side of the sliding groove is connected to a guide hole (782) that is slidably engaged with the guide bolt (79).

4. The new energy vehicle lithium battery shell injection mold according to claim 1, characterized in that: The fixed mold core (14) and the movable mold core (24) are provided with a second matching groove (8) matching the L-shaped connecting block (73), and the backs of the fixed mold core (14) and the movable mold core (24) are detachably mounted with a fixing sleeve (6) matching the top mold rod (72), and the fixed mold core (14) is provided with at least one air hole that is slidably matched with the air rod (15), and the air hole includes an inner hole, a tapered hole (16) and an outer hole, and the two ends of the tapered hole (16) are respectively connected to the inner hole and the outer hole.

5. The new energy vehicle lithium battery shell injection mold according to claim 4, characterized in that: The fixed mold base (11) and the movable mold base (21) are provided with a matching groove (5) that matches the L-shaped connecting block (73), and the depth of the matching groove (5) is greater than the depth of the matching groove (8). The fixed mold base (11) and the movable mold base (21) are also provided with a mounting hole that can accommodate the fixing sleeve (6) to pass through.

6. The new energy vehicle lithium battery shell injection mold according to claim 1, characterized in that: An air supply path is provided in the air distribution plate (12), and an air supply interface connected to the air supply path is provided on the air distribution plate (12). One end of the air distribution plate (12) is also provided with a connection interface for connecting to an external air supply device, and one end of the air rod (15) is detachably connected to the air supply interface, and the other end is provided with an exhaust hole (151).

7. The new energy vehicle lithium battery shell injection mold according to claim 1, characterized in that: The invention also includes a guide assembly (3), wherein the guide assembly (3) includes a guide rod, wherein the guide rod is connected to the fixed mold support (13) or the movable mold support (23), and a buffer spring is provided on the outer sleeve of the guide rod, wherein the buffer spring is arranged between the air distribution plate (12) and the fixed mold base (11) or the ejector plate (22) and the movable mold base (21).

8. The new energy vehicle lithium battery shell injection mold according to claim 7, characterized in that: The air distribution plate (12) and the ejector plate (22) are both provided with avoidance grooves, through which the air distribution plate (12) and the ejector plate (22) do not hinder the movement of the carrier plate (71), and the four top corners of the air distribution plate (12) and the ejector plate (22) are both provided with sliding holes that are slidably matched with the guide rods.

9. The new energy vehicle lithium battery shell injection mold according to claim 2, characterized in that: The carrier plate (71) is provided with a mounting groove (711) for mounting a linkage assembly, the telescopic cylinder (76) is mounted in the mounting groove (711), and a positioning rod (4) for connecting to an external drive mechanism is symmetrically mounted on one side of the carrier plate (71) away from the fixed mold base (11) or the movable mold base (21).

10. The new energy vehicle lithium battery shell injection mold according to claim 9, characterized in that: The fixed mold bracket (13), the movable mold bracket (23) and the gas distribution plate (12) are all provided with a center hole (9) in the middle, the fixed mold bracket (13) and the movable mold bracket (23) are both provided with positioning holes that slide with the positioning rod (4), and the fixed mold bracket (13) is also provided with a mounting through hole (17).

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