A battery case casting device

Abstract

The application relates to the technical field of metal die casting, in particular to a battery shell casting device, which comprises an equipment frame, the upper surface of the equipment frame is fixedly connected with a base, the upper surface of the equipment frame is fixedly connected with a supporting frame, the upper surface of the base is fixedly connected with an equipment side plate, the top of the base is provided with a movable mold, the inner wall of the movable mold is fixedly connected with a rectangular block, the side wall of the rectangular block is slidably connected with a rectangular frame, and the rectangular frame is slidably connected with the inner wall of the movable mold. Through the cooperation of the precise spraying of the anti-sticking spraying device and the exhaust structure, the anti-sticking liquid can directionally cover the cavity area of the inner wall of the rectangular block and the fixed mold, the adhesion of the battery shell and the cavity is reduced, meanwhile, the exhaust hole can automatically exhaust the gas in the cavity, the bubbles generated when the metal liquid is filled are avoided, the forming precision of the battery shell is effectively improved, and the defect rate caused by mold sticking or air holes is reduced.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of metal die casting, and particularly relates to a battery shell casting device. BACKGROUND

[0002] With the rapid development of the new energy industry, the demand for power batteries is continuously increasing. The forming quality and production efficiency of the battery shell, which is a protection structure of the power battery, are crucial to the overall performance of the battery. At present, the battery shell is mostly manufactured by using a die casting process. A type cavity is formed by combining a moving die and a fixed die, and is formed after metal liquid is injected.

[0003] In the prior art, the battery shell die casting process has the following problems: first, the anti-sticking effect is poor. The anti-sticking liquid spraying is mostly sprayed in a fixed area, and the type cavity is prone to have too much or too little anti-sticking liquid in a local part, which leads to the adhesion of the battery shell to the type cavity, increases the demolding difficulty and easily causes damage to the shell; second, the type cavity is not completely exhausted. When the metal liquid is filled, the gas in the type cavity is difficult to quickly exhaust, and is prone to form bubbles and shrinkage holes on the surface or in the interior of the shell, which affects the structural strength of the shell; and third, the cooling and pushing in the demolding process have poor coordination. If the cooling is not timely, the adhesion of the shell to the fixed die is aggravated, and the simple mechanical pushing is prone to cause deformation of the shell. The overall demolding efficiency is low, and the production continuity is affected. Therefore, the application provides a battery shell casting device to solve the above problems. SUMMARY

[0004] The application aims to provide a battery shell casting device to solve the problems in the background art.

[0005] The technical scheme of the application is as follows: a battery shell casting device comprises an equipment frame, a base is fixedly connected to the upper surface of the equipment frame, a support frame is fixedly connected to the upper surface of the equipment frame, an equipment side plate is fixedly connected to the upper surface of the base, a moving die is arranged above the base, a rectangular block is fixedly connected to the inner wall of the moving die, a rectangular frame is slidably connected to the side wall of the rectangular block, the rectangular frame is slidably connected to the inner wall of the moving die, a fixed die is arranged above the base, the rectangular block and the inner wall of the fixed die are matched, the rectangular block and the inner wall of the fixed die form a battery shell die, a soup feeding pipe is fixedly connected to the upper surface of the fixed die, two symmetrically arranged stop blocks are fixedly connected to the lower surface of the moving die, two symmetrically arranged fixed plates are fixedly connected to the inner wall of the base, two symmetrically arranged sliding rails are fixedly connected to the lower surface of the moving die, each sliding rail is slidably connected to the side wall of the adjacent fixed plate, two symmetrically arranged support columns are arranged above the base, the equipment side plate is fixedly connected to the surfaces of the two support columns, the right ends of the two support columns penetrate through the left sides of the moving die and the fixed die and extend to the right side outside of the fixed die, an anti-sticking spraying device is arranged on the moving die, and an auxiliary demolding device is arranged on the fixed die.

[0006] Preferably, the anti-sticking spraying device comprises a plurality of symmetrically arranged moving pipes, each of which penetrates the left side of the movable mold and extends to the inside of the movable mold, the left end of each of the moving pipes is fixedly connected with a disc, the right end of each of the discs is fixedly connected with two symmetrically arranged strip plates, the inside of each of the moving pipes is provided with a push rod one, each of the push rod ones is fixedly connected with the right end of the adjacent disc, each of the push rod ones is fixedly connected with the inner wall of the adjacent moving pipe, the right end of each of the push rod ones is fixedly connected with a push disc, the surface of each of the moving pipes is sleeved with a fixed pipe, the left end of each of the fixed pipes penetrates the right side of the fixed mold and the movable mold and extends to the inside of the movable mold, each of the fixed pipes is fixedly connected with the inner wall of the fixed mold, each of the moving pipes is slidingly connected with the inner wall of the adjacent fixed pipe, the inner wall of each of the fixed pipes is fixedly connected with an annular block one, the right end of each of the annular block ones is fixedly connected with a spring one, the right end of each of the spring ones is fixedly connected with the inner wall of the adjacent fixed pipe, the right end of each of the fixed pipes is fixedly connected with the same conveying pipe, the surface of the conveying pipe is fixedly connected with an anti-sticking liquid input pipe, the side wall of the movable mold is provided with an exhaust hole one, the side wall of the movable mold is fixedly connected with a spring two, the left end of the spring two is fixedly connected with a baffle one, the side wall of the movable mold is fixedly connected with an exhaust pipe one, the exhaust hole one and the exhaust pipe one are in communication, the inner wall of the exhaust pipe one is fixedly connected with an annular block two, the spring two and the baffle one are arranged in the inside of the exhaust pipe one, the side wall of each of the movable molds is provided with a plurality of symmetrically arranged rectangular grooves, the inner wall of each of the rectangular grooves is provided with two symmetrically arranged mounting grooves, the inner wall of each of the mounting grooves is fixedly connected with a spring three, one end of each of the spring threes away from the mounting groove is fixedly connected with a limiting ball, the two sides of each of the strip plates are provided with limiting grooves, each of the limiting grooves is matched with the size of the adjacent limiting ball, each of the strip plates is matched with the size of the adjacent rectangular groove.

[0007] Preferably, the auxiliary ejection device comprises a plurality of symmetrically arranged fixed columns, each of which is fixed to the right side of the fixed mold, the inner wall of the fixed mold is provided with a plurality of symmetrically arranged movable holes, the inner wall of each movable hole is slidably connected with a movable nozzle, the right end of each movable nozzle is fixedly connected with a push tube, each push tube is slidably connected with the inner wall of the adjacent fixed column, the surface of each push tube is fixedly connected with the same movable plate, the L-shaped blocks on both sides of the movable plate are matched with the size of the adjacent stop block, the left side of the rectangular frame is fixedly connected with two symmetrically arranged push rods two, the left end of each push rod two penetrates the inner wall of the movable mold and extends to the outside of the movable mold, the left end of each push rod two is rotatably connected with a connecting rod one, the surface of the upper and lower two circular plates in the middle is rotatably connected with a connecting rod two, each connecting rod one is rotatably connected with the side wall of the corresponding connecting rod two, the two connecting rod ones are rotatably connected through the rotating shaft, the two connecting rod twos are rotatably connected through the rotating shaft, the upper surface of the supporting frame is fixedly connected with a box, the inner wall of the box is slidably connected with a sliding plate, the right end of the plurality of push tubes sequentially penetrates the side wall of the movable plate and the box and extends to the inside of the box, the right side of the sliding plate is fixedly connected with a communication pipe, the surface of the communication pipe is provided with a plurality of symmetrically arranged conveying holes, the upper surface of the supporting frame is fixedly connected with a barrel, the right end of the communication pipe penetrates the surface of the barrel and extends to the inside of the barrel, the surface of the barrel is fixedly connected with a cooling liquid inlet pipe.

[0008] Preferably, the auxiliary ejection device further comprises a plurality of symmetrically arranged conical pipes, each of which is fixed to the right end of the adjacent push tube, the inner wall of each conical pipe is fixedly connected with an annular block three, the left end of each annular block three is fixedly connected with a spring four, the left end of each spring four is fixedly connected with a baffle two, the right end of each conical pipe penetrates the left side of the sliding plate and extends to the right side of the sliding plate, and the surface of the sliding plate is fixedly connected with the plurality of push tubes.

[0009] Preferably, the inner wall bottom surface of the fixed mold is provided with an exhaust hole two, the inner wall of the exhaust hole two is fixedly connected with a fixed ring, the inner wall of the fixed ring is slidably connected with a plug, the lower end of the plug is fixedly connected with a spring five, the lower end of the spring five is fixedly connected with an annular block four, and the annular block four is fixedly connected with the inner wall of the exhaust hole two.

[0010] Preferably, the equipment frame, base, supporting frame, equipment side plate, movable mold and fixed mold are the basic equipment of the die casting machine, and are controlled by an external control system, the soup feeding pipe is connected with an external soup feeding device, the anti-sticky liquid inlet pipe is connected with an external anti-sticky liquid conveying device, and the cooling liquid inlet pipe is connected with an external cooling liquid conveying device.

[0011] Preferably, a plurality of spray holes are formed in each fixed tube, and the spray direction of each spray hole is aligned with the inner wall of the rectangular block and the fixed mold.

[0012] Preferably, the left half surface of each of the moving nozzles is provided with a plurality of annularly arranged water outlets.

[0013] Preferably, the connection between the box and the plurality of push tubes is provided with a sealing ring, the connection between the sliding plate and the plurality of push tubes is provided with a sealing ring, the connection between the communication pipe and the box and the barrel is provided with a sealing ring, and the left side and the right side formed by the box and the sliding plate are both closed spaces.

[0014] The battery shell casting device provided by the application improves the prior art and has the following improvements and advantages:

[0015] 1. The application cooperates the precise spraying of the anti-sticking spraying device and the exhaust structure to direct the covering of the rectangular block and the cavity area of the inner wall of the mold, reduces the adhesion of the battery shell and the cavity, and automatically exhausts the gas in the cavity to avoid the generation of bubbles when the metal liquid is filled, effectively improves the forming precision of the battery shell, and reduces the defect rate caused by mold sticking or pores.

[0016] 2. The application realizes the orderly connection of multiple processes through mechanical linkage, the anti-sticking spraying device sprays precisely when the mold is closed, the rectangular frame is automatically triggered to be separated after the mold is closed in place, and the auxiliary ejection device is linked through the stop block and the push tube when the mold is opened, so that the cooling liquid delivery and the moving nozzle pushing are realized synchronously, the continuous actions of anti-sticking, frame extraction, cooling, and demolding are completed without additional driving, the process interval is shortened, and the overall casting efficiency is improved.

[0017] 3. The auxiliary ejection device of the application combines the cooling and pushing functions, the annular water outlets of the moving nozzle spray cooling liquid during demolding, which cools the shell and reduces adhesion, the pushing force of the push tube realizes smooth demolding, the one-way sealing structure of the conical tube ensures that the cooling liquid is accurately supplied only during the demolding stage, waste is avoided, and the forming is not affected, and the stability and success rate of demolding are greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] The application will be further explained in conjunction with the drawings and examples:

[0019] Figure 1 is a schematic diagram of the main structure of the application Figure 1 ;

[0020] Figure 2 is a schematic diagram of the main structure of the application Figure 2 ;

[0021] Figure 3 is a schematic diagram of the base cross-sectional structure of the application;

[0022] Figure 4 is a schematic diagram of the moving pipe cross-sectional structure of the application;

[0023] Figure 5 is the schematic diagram of the main body cross-sectional structure of the present application;

[0024] Figure 6 is the schematic diagram of the fixed plate and slide rail structure of the present application;

[0025] Figure 7 is the schematic diagram of the exhaust hole two structure of the present application;

[0026] Figure 8 is the schematic diagram of the exhaust hole one structure of the present application;

[0027] Figure 9 is the schematic diagram of the moving die cross-sectional structure of the present application;

[0028] Figure 10 is Figure 5 is the enlarged schematic diagram of A in the above figure;

[0029] Figure 11 is Figure 9 is the enlarged schematic diagram of B in the above figure;

[0030] Figure 12 is the schematic diagram of the communication pipe structure of the present application.

[0031] Explanation of reference signs:

[0032] 1, equipment rack; 2, base; 3, support frame; 4, equipment side plate; 5, moving die; 6, rectangular block; 7, rectangular frame; 8, fixed die; 9, soup feeding pipe; 10, stop block; 11, fixed plate; 12, slide rail; 13, moving pipe; 14, round sheet; 15, long strip plate; 16, push rod one; 17, push disc; 18, fixed pipe; 19, annular block one; 20, spring one; 21, conveying pipe; 22, anti-sticky liquid input pipe; 23, exhaust hole one; 24, spring two; 25, stop sheet one; 26, exhaust pipe one; 27, annular block two; 28, rectangular groove; 29, mounting groove; 30, spring three; 31, limiting ball; 32, limiting groove; 33, fixed column; 34, movable hole; 35, moving spray pipe; 36, push pipe; 37, movable plate; 38, push rod two; 39, connecting rod one; 40, connecting rod two; 41, box body; 42, sliding plate; 43, communication pipe; 44, conveying hole; 45, barrel; 46, conical pipe; 47, annular block three; 48, spring four; 49, stop sheet two; 50, exhaust hole two; 51, fixed ring; 52, plug; 53, spring five; 54, annular block four; 55, cooling liquid input pipe; 56, support column. DETAILED DESCRIPTION

[0033] The application will be described in detail below, and the technical solutions in the embodiments of the application will be clearly and completely described. Obviously, the described embodiments are only some of the embodiments of the application, not all. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the application.

[0034] The application provides a battery shell casting device by improvement, and the technical solutions of the application are as follows:

[0035] As shown in Figure 1 - Figure 12 A battery shell casting device, comprising an equipment frame 1, a bottom base 2 fixedly connected to the upper surface of the equipment frame 1, a support frame 3 fixedly connected to the upper surface of the equipment frame 1, an equipment side plate 4 fixedly connected to the upper surface of the bottom base 2, a movable mold 5 arranged above the bottom base 2, a rectangular block 6 fixedly connected to the inner wall of the movable mold 5, a rectangular frame 7 slidably connected to the side wall of the rectangular block 6, the rectangular frame 7 slidably connected to the inner wall of the movable mold 5, a fixed mold 8 arranged above the bottom base 2, the rectangular frame 7 matched with the inner wall of the fixed mold 8, when the molds are closed, the rectangular block 6, the rectangular frame 7 and the inner wall of the fixed mold 8 are combined to form a complete cavity, after the rectangular frame 7 is pulled out from between the rectangular block 6 and the fixed mold 8, the inner wall of the rectangular block 6 and the fixed mold 8 constitutes a battery shell mold, a soup feeding pipe 9 fixedly connected to the upper surface of the fixed mold 8, two symmetrically arranged stop blocks 10 fixedly connected to the lower surface of the movable mold 5, two symmetrically arranged fixed plates 11 fixedly connected to the inner wall of the bottom base 2, two symmetrically arranged slide rails 12 fixedly connected to the lower surface of the movable mold 5, each slide rail 12 slidably connected to the side wall of the adjacent fixed plate 11, two symmetrically arranged support columns 56 arranged above the bottom base 2, the equipment side plate 4 fixedly connected to the surface of the two support columns 56, the right ends of the two support columns 56 penetrating through the left sides of the movable mold 5 and the fixed mold 8 and extending to the right side outside of the fixed mold 8, an anti-sticking spraying device arranged on the movable mold 5, and an auxiliary mold stripping device arranged on the fixed mold 8.

[0036] Further, the anti-sticking spraying device comprises a plurality of symmetrically arranged moving pipes 13, each of which penetrates the left side of the movable mold 5 and extends to the inside of the movable mold 5, the left end of each moving pipe 13 is fixedly connected with a circular plate 14, the right end of each circular plate 14 is fixedly connected with two symmetrically arranged long strip plates 15, the inside of each moving pipe 13 is provided with a push rod one 16, each push rod one 16 is fixedly connected with the right end of the adjacent circular plate 14, each push rod one 16 is fixedly connected with the inner wall of the adjacent moving pipe 13, the right end of each push rod one 16 is fixedly connected with a push disc 17, the surface of each moving pipe 13 is sleeved with a fixed pipe 18, the left end of each fixed pipe 18 penetrates the right side of the fixed mold 8 and the movable mold 5 and extends to the inside of the movable mold 5, each fixed pipe 18 is fixedly connected with the inner wall of the fixed mold 8, each moving pipe 13 is slidingly connected with the inner wall of the adjacent fixed pipe 18, the inner wall of each fixed pipe 18 is fixedly connected with an annular block one 19, the right end of each annular block one 19 is fixedly connected with a spring one 20, the right end of each spring one 20 is fixedly connected with the inner wall of the adjacent fixed pipe 18, the right end of each fixed pipe 18 is fixedly connected with the same conveying pipe 21, the surface of the conveying pipe 21 is fixedly connected with an anti-sticking liquid input pipe 22, the side wall of the movable mold 5 is provided with an exhaust hole one 23, the side wall of the movable mold 5 is fixedly connected with a spring two 24, the left end of the spring two 24 is fixedly connected with a baffle one 25, the side wall of the movable mold 5 is fixedly connected with an exhaust pipe one 26, the exhaust hole one 23 communicates with the exhaust pipe one 26, the inner wall of the exhaust pipe one 26 is fixedly connected with an annular block two 27, the spring two 24 and the baffle one 25 are arranged in the inside of the exhaust pipe one 26, the side wall of each movable mold 5 is provided with a plurality of symmetrically arranged rectangular grooves 28, the inner wall of each rectangular groove 28 is provided with two symmetrically arranged mounting grooves 29, the inner wall of each mounting groove 29 is fixedly connected with a spring three 30, the end away from the mounting groove 29 of each spring three 30 is fixedly connected with a limiting ball 31, the two sides of each long strip plate 15 are provided with limiting grooves 32, each limiting groove 32 is matched with the size of the adjacent limiting ball 31, each long strip plate 15 is matched with the size of the adjacent rectangular groove 28, the sliding cooperation of the moving pipe 13 and the fixed pipe 18 can sequentially block the spraying holes of the fixed pipe 18 by moving with the movable mold 5, realizing precise spraying of the anti-sticking liquid in the cavity forming area, avoiding material waste caused by spraying in the non-cavity area on the left side of the movable mold 5, the linkage of the push rod one 16, the push disc 17 and the spring one 20 automatically drives the moving pipe 13 to reset after the mold is closed in place, synchronously triggering the pulling-out action of the circular plate 14, the long strip plate 15 and the rectangular frame 7, the cooperation of the limiting ball 31 and the limiting groove 32 can stably limit the position of the long strip plate 15 during the mold closing process, ensuring that the spraying is accurately performed, while the spring one 20 can smoothly escape from the limiting when rebounding, ensuring that the rectangular frame 7 is timely pulled out to exhaust the cavity air.

[0037] Further, the auxiliary ejection device comprises a plurality of fixed columns 33 symmetrically arranged, each fixed column 33 is fixed to the right side of the fixed mold 8, a plurality of movable holes 34 symmetrically arranged are formed in the inner wall of the fixed mold 8, the inner wall of each movable hole 34 is slidably connected with a movable nozzle 35, the right end of each movable nozzle 35 is fixedly connected with a push pipe 36, each push pipe 36 is slidably connected with the inner wall of the adjacent fixed column 33, one same movable plate 37 is fixedly connected to the surface of each push pipe 36, the L-shaped blocks on both sides of the movable plate 37 are matched with the size of the adjacent stop block 10, two push rods two 38 symmetrically arranged are fixedly connected to the left side of the rectangular frame 7, the left end of each push rod two 38 penetrates through the inner wall of the movable mold 5 and extends to the outside of the movable mold 5, a connecting rod one 39 is rotatably connected to the left end of each push rod two 38, a connecting rod two 40 is rotatably connected to the surface of the upper and lower two circular plates 14 in the middle, each connecting rod one 39 is rotatably connected with the side wall of the corresponding connecting rod two 40, the two connecting rod ones 39 are rotatably connected through the rotating shaft, the two connecting rod twos 40 are rotatably connected through the rotating shaft, a box body 41 is fixedly connected to the upper surface of the support frame 3, a sliding plate 42 is slidably connected to the inner wall of the box body 41, the right ends of the plurality of push pipes 36 sequentially penetrate through the side wall of the movable plate 37 and the box body 41 and extend to the inside of the box body 41, a communication pipe 43 is fixedly connected to the right side of the sliding plate 42, a plurality of delivery holes 44 symmetrically arranged are formed in the surface of the communication pipe 43, a barrel 45 is fixedly connected to the upper surface of the support frame 3, the right end of the communication pipe 43 penetrates through the surface of the barrel 45 and extends to the inside of the barrel 45, a cooling liquid input pipe 55 is fixedly connected to the surface of the barrel 45. The sliding cooperation of the fixed column 33 and the push pipe 36, the synchronous connection of the plurality of push pipes 36 through the movable plate 37, the rotation connection of the push rod two 38, the connecting rod one 39 and the connecting rod two 40, the linkage of the pulling away action of the rectangular frame 7 and the resetting of the circular plate 14 and the movable pipe 13, the cooperation of the box body 41, the sliding plate 42 and the communication pipe 43, the movement of the sliding plate 42 driven by the push pipe 36, the accurate entry of the delivery hole 44 of the communication pipe 43 into the barrel 45, the automatic on-off of the cooling liquid, the cooling only in the demolding stage, the avoidance of the early injection of the cooling liquid affecting the metal liquid forming, the design of the annular water outlet hole of the left half of the movable nozzle 35, the spraying of the cooling liquid to cool the shell and the lubrication of the liquid to reduce the adhesion of the shell and the fixed mold 8 during demolding.

[0038] Further, the auxiliary ejection device further comprises a plurality of symmetrically arranged tapered pipes 46, each of which is fixed to the right end of an adjacent push pipe 36, the inner wall of each tapered pipe 46 is fixedly connected with an annular block three 47, the left end of each annular block three 47 is fixedly connected with a spring four 48, the left end of each spring four 48 is fixedly connected with a baffle two 49, the right end of each tapered pipe 46 penetrates the left side of the sliding plate 42 and extends to the right of the sliding plate 42, the sliding plate 42 is fixedly connected with the surface of the plurality of push pipes 36, the cooperation of the tapered pipe 46 with the baffle two 49 and the spring four 48 can push the baffle two 49 to tightly adhere to the inner wall of the tapered pipe 46 through the pre-tightening force of the spring four 48, realizing one-way sealing of the cooling liquid passage, avoiding backflow or leakage of the cooling liquid from the push pipe 36 during the non-ejection stage, and the right end of the tapered pipe 46 penetrates the sliding plate 42 and the sliding plate 42 is fixedly connected with the push pipe 36, so that the tapered pipe 46 can move synchronously with the push pipe 36, ensuring that the cooling liquid passage always maintains stable connection during the process of the push pipe 36 driving the movable nozzle 35 to stretch and retract.

[0039] Further, the inner wall bottom surface of the fixed mold 8 is provided with an exhaust hole two 50, the inner wall of the exhaust hole two 50 is fixedly connected with a fixed ring 51, the inner wall of the fixed ring 51 is slidingly connected with a plug 52, the lower end of the plug 52 is fixedly connected with a spring five 53, the lower end of the spring five 53 is fixedly connected with an annular block four 54, the annular block four 54 is fixedly connected with the inner wall of the exhaust hole two 50, and the exhaust hole two 50 on the inner wall bottom surface of the fixed mold 8 cooperates with the fixed ring 51, the plug 52, the spring five 53 and the annular block four 54 to form an automatic exhaust structure. When the metal liquid is injected into the cavity, the internal gas under pressure will push the plug 52 to compress the spring five 53 downward, so that the gas is smoothly discharged from the gap between the fixed ring 51 and the plug 52.

[0040] Further, the equipment rack 1, the base 2, the support frame 3, the equipment side plate 4, the movable mold 5 and the fixed mold 8 are the basic equipment of the die casting machine, and are controlled by an external control system, the soup feeding pipe 9 is connected with an external soup feeding equipment, the anti-sticking liquid input pipe 22 is connected with an external anti-sticking liquid conveying equipment, and the cooling liquid input pipe 55 is connected with an external cooling liquid conveying equipment. Through unified control of the external control system, precise timing cooperation of actions such as movement of the movable mold 5, clamping of the fixed mold 8 and separation of the rectangular frame 7 can be realized.

[0041] Further, a plurality of spray holes are formed on each fixed pipe 18, and the spray directions of the spray holes are aligned with the inner walls of the rectangular block 6 and the fixed mold 8. The plurality of spray holes on each fixed pipe 18 and the spray directions aligned with the inner walls of the rectangular block 6 and the fixed mold 8 can ensure that the anti-sticking liquid is directly sprayed to the key area of the cavity forming, realize precise coverage of the inner walls of the rectangular block 6 and the fixed mold 8, and avoid waste caused by spraying the anti-sticking liquid to the surface of the non-cavity.

[0042] Further, the left half surface of each movable nozzle 35 is provided with a plurality of annularly arranged water outlets. The left half surface of each movable nozzle 35 is provided with a plurality of annularly arranged water outlets, which can uniformly spray cooling liquid to the contact area between the battery shell and the inner wall of the fixed mold 8 from multiple angles during demolding. This can not only ensure synchronous cooling of each part of the shell, but also form an annular liquid lubricating layer between the shell and the inner wall of the fixed mold 8, greatly reducing the frictional resistance therebetween and reducing the risk of adhesion.

[0043] Further, the connection between the box 41 and the plurality of push tubes 36 is provided with a sealing ring, the connection between the sliding plate 42 and the plurality of push tubes 36 is provided with a sealing ring, and the connection between the communication pipe 43 and the box 41 and the barrel 45 is provided with a sealing ring. The left side and the right side formed by the box 41 and the sliding plate 42 are both closed spaces. By arranging the sealing ring, the leakage of cooling liquid from the gap under the action of conveying and pressure can be effectively prevented, the sealing performance of the left side and the right side closed spaces formed by the box 41 and the sliding plate 42 can be ensured, and the stability of the pressure in the space can be ensured.

[0044] Working principle: in the initial state, the moving nozzle 35 is not in the active hole 34, but on the left side of the active hole 34, in use, first, the external control system starts the basic equipment on the equipment frame 1, the movable mold 5 slides along the fixed plate 11 on the inner wall of the base 2 through the slide rail 12 on the lower surface, moves towards the fixed mold 8, the supporting column 56 penetrates through the movable mold 5 and the fixed mold 8 to play a guiding role, until the movable mold 5 and the fixed mold 8 are closed, at this time, the rectangular block 6 in the inner wall of the movable mold 5, the rectangular frame 7 slidingly connected to the rectangular block 6 are closely attached to the inner wall of the fixed mold 8, forming a complete closed cavity, in the process of moving into the fixed mold 8, the rectangular block 6 and the rectangular frame 7 compress the air in the fixed mold 8, the plug 52 moves downward under the air pressure, the plug 52 compresses the spring five 53 to produce displacement, so that the plug 52 is separated from the fixed ring 51 to form a gap, the air in the fixed mold 8 is discharged from the gap between the fixed ring 51 and the plug 52, the rectangular frame 7 is accurately embedded because it matches the inner wall of the fixed mold 8, for subsequent positioning, in the process of moving the movable mold 5 to the right with the rectangular block 6, the movable mold 35 is pushed to the right, when the rectangular block 6 completely enters the fixed mold 8, the movable nozzle 35 enters the active hole 34, the left end of the movable nozzle 35 is flush with the inner wall of the fixed mold 8, in the process of moving the movable nozzle 35 to the right, the push pipe 36 moves to the right, the push pipe 36 drives the movable plate 37 to move to the right, and finally abuts against the left side of the box 41, at the same time, the push pipe 36 drives the sliding plate 42 to move to the right, the sliding plate 42 drives the communication pipe 43 to move to the right, finally makes the delivery hole 44 on the right side of the communication pipe 43 enter the bucket 45, so that the cooling liquid in the bucket 45 flows into the box 41 through the delivery hole 44 of the communication pipe 43, and finally enters the right space composed of the sliding plate 42 and the box 41, in the process of closing the mold, the anti-sticking spraying device is started, the movable mold 5 drives all the moving pipes 13, the circular plates 14, the long strip plates 15 and the push rods one 16 to move together, the push rod one 16 drives the push disc 17 to compress the spring one 20 to move to the right, so that the push disc 17 is separated from the annular block one 19, the external anti-sticking liquid enters the delivery pipe 21 through the anti-sticking liquid input pipe 22, and then is branched to each fixed pipe 18, and then reaches the spraying port position of the left half of the fixed pipe 18 through the gap between the annular block one 19 and the push disc 17, so as to spray, through external control, the hydraulic pressure in the delivery pipe 21 and the fixed pipe 18 can always meet the spraying of the spraying holes of the fixed pipe 18, and with the continuous movement of the moving pipe 13, the moving pipe 13 successively blocks the spraying holes of the fixed pipe 18, so that the spraying holes on the left side of the movable mold 5 do not spray the movable mold 5 when the movable mold 5 moves, unnecessary waste is avoided, when the movable mold 5 and the fixed mold 8 are closed, at this time, the movable mold 13 drives the push disc 17 to compress the spring one 20 to the maximum value, the spring one 20 is contracted to the maximum stroke, the spring one 20 instantaneously rebounds and resets, in the process of rebounding and resetting of the spring one 20, there is a leftward force on the push disc 17, the push disc 17 transmits the force to the circular plate 14 and the long strip plate 15 through the moving pipe 13, at this time, the force of the long strip plate 15 moving to the left suddenly increases,The limiting ball 31 that limits the long strip plate 15 slides out of the limiting groove 32, the spring three 30 is contracted under the pressure of the limiting ball 31, at this time the long strip plate 15 is in a free state, and the spring one 20 is reset by rebounding, the moving pipe 13, the circular plate 14 and the long strip plate 15 are pushed to move to the left side through the push disc 17 and the push rod one 16, the push disc 17 and the annular block one 19 recombine, so that the anti-sticking liquid cannot pass through, and the circular plate 14 moves to the left, drives the push rod two 38 to move to the left through the connecting rod one 39 and the connecting rod two 40, and drives the rectangular frame 7 to move to the left, so that the rectangular frame 7 is pulled out from between the fixed mold 8 and the rectangular block 6, and the air in the fixed mold 8 is pulled out in the pulling-out process of the rectangular frame 7, so as to facilitate subsequent soup pouring and molding, then the soup feeding pipe 9 pours the metal liquid into the cavity, the residual gas in the cavity is synchronously discharged from the air outlet hole two 50 in the inner wall bottom surface of the fixed mold 8 under pressure, the gas drives the plug 52 to compress the spring five 53, so that the gas is discharged between the fixed ring 51 and the plug 52, after the air is discharged, the spring five 53 is reset to drive the plug 52 to close the air outlet hole two 50, after the metal liquid is initially formed, the initially formed battery shell mold is cooled through external system control, and then the movable mold 5 moves to the left and leaves the fixed mold 8, at this time, the space on the right side of the box body 41 and the sliding plate 42 is filled with cooling liquid, as the hydraulic pressure increases, the pressure on the baffle two 49 increases, until the hydraulic pressure overcomes the elastic force of the spring four 48 to drive the baffle two 49, so that the baffle two 49 is separated from the inner wall of the conical pipe 46, the cooling liquid smoothly passes through the push pipe 36, so that the cooling liquid is sprayed out through the water outlet hole of the moving spray pipe 35, at the same time, the hydraulic pressure has a leftward pushing force on the sliding plate 42, so that the sliding plate 42 drives the movable plate 37 to move to the left through the push pipe 36, until the L-shaped block on the movable plate 37 abuts against the stop block 10, at the same time, the sliding plate 42 drives the moving spray pipe 35 to move to the left through the push pipe 36, the moving spray pipe 35 sprays the cooling liquid while moving to the left, so that the battery shell mold moves to the left and is separated from the fixed mold 8, so that the demolding is smoothly completed, and the casting is completed.

[0045] The above description enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Accordingly, the present application is not to be limited to these embodiments shown herein but is to be accorded the broadest scope consistent with the principles and novel features disclosed herein.

Claims

1. A battery case casting apparatus comprising an apparatus frame (1), characterized by: The upper surface of the equipment rack (1) is fixedly connected with a base (2), the upper surface of the equipment rack (1) is fixedly connected with a support frame (3), the upper surface of the base (2) is fixedly connected with an equipment side plate (4), the upper side of the base (2) is provided with a movable mold (5), the inner wall of the movable mold (5) is fixedly connected with a rectangular block (6), the side wall of the rectangular block (6) is slidably connected with a rectangular frame (7), the rectangular frame (7) is slidably connected with the inner wall of the movable mold (5), the upper side of the base (2) is provided with a fixed mold (8), the rectangular frame (7) is matched with the inner wall of the fixed mold (8), the rectangular block (6) and the inner wall of the fixed mold (8) form a battery shell mold, the upper surface of the fixed mold (8) is fixedly connected with a soup feeding pipe (9), the lower surface of the movable mold (5) is fixedly connected with two symmetrically arranged stop blocks (10), the inner wall of the base (2) is fixedly connected with two symmetrically arranged fixed plates (11), the lower surface of the movable mold (5) is fixedly connected with two symmetrically arranged slide rails (12), each slide rail (12) is slidably connected with the side wall of the adjacent fixed plate (11), the upper side of the base (2) is provided with two symmetrically arranged support columns (56), the equipment side plate (4) is fixedly connected with the surfaces of the two support columns (56), the right ends of the two support columns (56) all penetrate through the left sides of the movable mold (5) and the fixed mold (8) and extend to the right sides outside the fixed mold (8), the movable mold (5) is provided with an anti-sticking spraying device, the fixed mold (8) is provided with an auxiliary mold stripping device, the anti-sticking spraying device comprises a plurality of symmetrically arranged moving pipes (13), each moving pipe (13) penetrates through the left side of the movable mold (5) and extends to the inside of the movable mold (5), the left end of each moving pipe (13) is fixedly connected with a circular sheet (14), the right end of each circular sheet (14) is fixedly connected with two symmetrically arranged strip plates (15), the inside of each moving pipe (13) is provided with a push rod I (16), each push rod I (16) is fixedly connected with the right end of the adjacent circular sheet (14), each push rod I (16) is fixedly connected with the inner wall of the adjacent moving pipe (13), the right end of each push rod I (16) is fixedly connected with a push disc (17), the surface of each moving pipe (13) is sleeved with a fixed pipe (18), the left end of each fixed pipe (18) penetrates through the right side of the fixed mold (8) and the movable mold (5) and extends to the inside of the movable mold (5), each fixed pipe (18) is fixedly connected with the inner wall of the fixed mold (8), each moving pipe (13) is slidably connected with the inner wall of the adjacent fixed pipe (18), the inner wall of each fixed pipe (18) is fixedly connected with an annular block I (19), the right end of each annular block I (19) is fixedly connected with a spring I (20), the right end of each spring I (20) is fixedly connected with the inner wall of the adjacent fixed pipe (18), the right end of each fixed pipe (18) is fixedly connected with the same conveying pipe (21),The surface of the conveying pipe (21) is fixedly connected with an anti-sticking liquid input pipe (22), the side wall of the movable mold (5) is provided with an exhaust hole one (23), the side wall of the movable mold (5) is fixedly connected with a spring two (24), the left end of the spring two (24) is fixedly connected with a baffle one (25), the side wall of the movable mold (5) is fixedly connected with an exhaust pipe one (26), the exhaust hole one (23) is communicated with the exhaust pipe one (26), the inner wall of the exhaust pipe one (26) is fixedly connected with an annular block two (27), the spring two (24) and the baffle one (25) are arranged in the exhaust pipe one (26), the side wall of each movable mold (5) is provided with a plurality of symmetrically arranged rectangular grooves (28), the inner wall of each rectangular groove (28) is provided with two symmetrically arranged mounting grooves (29), the inner wall of each mounting groove (29) is fixedly connected with a spring three (30), the end, away from the mounting groove (29), of each spring three (30) is fixedly connected with a limiting ball (31), the two sides of each long strip plate (15) are provided with limiting grooves (32), each limiting groove (32) is matched with the size of the adjacent limiting ball (31), and each long strip plate (15) is matched with the size of the adjacent rectangular groove (28).

2. The battery case casting apparatus according to claim 1, wherein: The auxiliary ejection device comprises a plurality of symmetrically arranged fixed columns (33), each of which is fixed to the right side of the fixed mold (8), the inner wall of the fixed mold (8) is provided with a plurality of symmetrically arranged movable holes (34), the inner wall of each movable hole (34) is slidably connected with a movable nozzle (35), the right end of each movable nozzle (35) is fixedly connected with a push tube (36), each push tube (36) is slidably connected with the inner wall of the adjacent fixed column (33), and the surface of each push tube (36) is fixedly connected with the same movable plate (37), the L-shaped blocks on both sides of the movable plate (37) are matched with the size of the adjacent stop block (10), the left side of the rectangular frame (7) is fixedly connected with two symmetrically arranged push rods two (38), the left end of each push rod two (38) penetrates the inner wall of the movable mold (5) and extends to the outside of the movable mold (5), the left end of each push rod two (38) is rotatably connected with a connecting rod one (39), the surface of the upper and lower two circular plates (14) in the middle is rotatably connected with a connecting rod two (40), each connecting rod one (39) is rotatably connected with the side wall of the corresponding connecting rod two (40), the two connecting rod ones (39) are rotatably connected through the rotating shaft, the two connecting rod twos (40) are rotatably connected through the rotating shaft, the upper surface of the support frame (3) is fixedly connected with a box (41), the inner wall of the box (41) is slidably connected with a sliding plate (42), the right ends of the plurality of push tubes (36) sequentially penetrate the side walls of the movable plate (37) and the box (41) and extend to the inside of the box (41), the right side of the sliding plate (42) is fixedly connected with a communication pipe (43), the surface of the communication pipe (43) is provided with a plurality of symmetrically arranged conveying holes (44), the upper surface of the support frame (3) is fixedly connected with a barrel (45), the right end of the communication pipe (43) penetrates the surface of the barrel (45) and extends to the inside of the barrel (45), and the surface of the barrel (45) is fixedly connected with a cooling liquid input pipe (55).

3. The battery case casting apparatus according to claim 2, wherein: The auxiliary ejection device further comprises a plurality of symmetrically arranged tapered pipes (46), each of which is fixed to the right end of the adjacent push tube (36), the inner wall of each tapered pipe (46) is fixedly connected with an annular block three (47), the left end of each annular block three (47) is fixedly connected with a spring four (48), the left end of each spring four (48) is fixedly connected with a baffle two (49), and the right end of each tapered pipe (46) penetrates the left side of the sliding plate (42) and extends to the right side of the sliding plate (42), and the surface of the sliding plate (42) is fixedly connected with the plurality of push tubes (36).

4. The battery case casting apparatus according to claim 1, wherein: The inner wall bottom surface of the fixed mold (8) is provided with an exhaust hole two (50), the inner wall of the exhaust hole two (50) is fixedly connected with a fixed ring (51), the inner wall of the fixed ring (51) is slidably connected with a plug (52), the lower end of the plug (52) is fixedly connected with a spring five (53), the lower end of the spring five (53) is fixedly connected with an annular block four (54), and the annular block four (54) is fixedly connected with the inner wall of the exhaust hole two (50).

5. The battery case casting apparatus according to claim 2, wherein: The equipment rack (1), base (2), support frame (3), equipment side plate (4), movable mold (5) and fixed mold (8) are the basic equipment of the die casting machine, and are controlled by an external control system, the soup feeding pipe (9) is connected with an external soup feeding device, the anti-sticky liquid input pipe (22) is connected with an external anti-sticky liquid conveying device, and the cooling liquid input pipe (55) is connected with an external cooling liquid conveying device.

6. The battery case casting apparatus according to claim 1, wherein: A plurality of spray holes are formed in each of the fixed pipes (18), and the spray directions of the spray holes are aligned with the inner walls of the rectangular block (6) and the fixed mold (8).

7. The battery case casting apparatus according to claim 2, wherein: A plurality of annular water outlet holes are formed in the left half surface of each of the movable spray pipes (35).

8. The battery case casting apparatus according to claim 2, wherein: Sealing rings are arranged at the connections between the box (41) and the plurality of push pipes (36), at the connections between the sliding plate (42) and the plurality of push pipes (36), at the connections between the communication pipe (43) and the box (41) and the bucket (45), and the left and right sides formed by the box (41) and the sliding plate (42) are both closed spaces.

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