CN113146931B

CN113146931B - New energy automobile battery shell forming preparation process

Info

Publication number: CN113146931B
Application number: CN202110466226.0A
Authority: CN
Inventors: 王慧彬
Original assignee: Fuzhou Guanhong New Material Technology Co ltd
Current assignee: Fuzhou Guanhong New Material Technology Co ltd
Priority date: 2021-04-28
Filing date: 2021-04-28
Publication date: 2022-11-04
Anticipated expiration: 2041-04-28
Also published as: CN113146931A

Abstract

The invention provides a new energy automobile battery shell forming preparation process, relates to the technical field of battery shell production, and comprises the following steps: s1, cavity synthesis: the first forming die and the second forming die which are used in combination are mutually attached, so that the forming cavity of the first forming die and the forming cavity of the second forming die are combined to form a complete forming cavity with an upward opening; s2, injecting a plastic cement liquid: injecting plastic cement liquid into the molding cavity combined in the step S1, and enabling the plastic cement liquid to drop into the molding cavity through the opening of the molding cavity upwards; the inner core die provided by the invention can be lifted upwards while sliding towards the left side and the right side through the first forming die and the second forming die, so that the outer wall of the formed battery shell is separated from the first forming die and the second forming die, and then the bearing block above the inner core die downwards presses the film pushing block to move downwards through gravity, so that the formed battery shell is ejected out, and the separation of the battery shell and the inner core die is realized.

Description

New energy automobile battery shell forming preparation process

Technical Field

The invention relates to the technical field of battery shell production, in particular to a new energy automobile battery shell forming preparation process.

Background

The battery shell is made of ABS high-strength high-density plastic and is used for containing electrolyte and an electrode plate group, and the shell is resistant to acid, heat and shock and is made of hard rubber in the past. At present, the polypropylene plastic outer shell is produced at home. The shell is acid-resistant, heat-resistant and shock-resistant, and has high strength, thin shell wall (generally 3.5mm, and the wall thickness of hard rubber shell is 10 mm), light weight, beautiful appearance and transparency.

At present, most of the traditional battery cases are manufactured by injection molding, for example, CN202011171262.6, which is disclosed in the patent number, discloses a method for processing a battery case, which comprises the following steps: s1, extruding and molding a section, and cutting the section in a fixed size according to the size of a shell; s2, machining according to the drawing requirements, and removing burrs, tool vibration lines or incomplete machining in the hole and the notch edge extension; s3, selecting a 320-mesh wire drawing abrasive belt sanding measurement size part and performing light drawing treatment by using a manual triangular wire drawing mode; s4, selecting an anodic oxidation film with uniform color, wrapping the anodic oxidation film with 1.0mm pearl cotton, buckling the anodic oxidation film and the pearl cotton, and putting the anodic oxidation film and the pearl cotton into a turnover box. According to the invention, the aluminum alloy extrusion forming process is selected, so that the convenience of processing and forming the battery shell can be improved, and the precision of a large-size industrial product reaches the um level precision through finish machining and micro-shaping; by the battery shell processing technology, the processing quality and the processing efficiency of the shell can be well improved. .

The case shaping device disclosed by the patent still has some defects in actual use, and the specific defects are as follows:

at present, when the battery shell is manufactured and molded, the internal structure of the battery shell is not single, and a battery separator is required to be arranged to prevent the mutual flowing of battery liquid, so that when the battery shell is manufactured and molded, the battery separator is easy to clamp in the demolding of a molding cavity, the molded battery shell is difficult to rapidly demold, the production cost of an enterprise is easily increased by using a large amount of demolding agents, and the production efficiency and the production quality of the battery shell are easily influenced.

Disclosure of Invention

The invention aims to provide a new energy automobile battery shell forming preparation process, and solves the technical problems that when a battery shell is prepared and formed, the internal structure of a battery shell is not single, and battery liquid is required to be prevented from flowing mutually by arranging a battery clapboard, so that when the battery shell is prepared and formed, the battery clapboard is easy to clamp when the battery clapboard is demoulded in a forming cavity, the formed battery shell is difficult to demould quickly, the production cost of an enterprise is easy to increase by using a large amount of the demoulding agent, and the production efficiency and the production quality of the battery shell are easy to influence.

The technical problem to be solved by the invention is realized by adopting the following technical scheme: a new energy automobile battery shell forming preparation process comprises the following steps:

s1, cavity synthesis: the first forming die and the second forming die which are used in combination are mutually attached, so that the forming cavity of the first forming die and the forming cavity of the second forming die are combined to form a complete forming cavity with an upward opening;

s2, injecting a plastic solution: injecting plastic cement liquid into the molding cavity combined in the step S1, and enabling the plastic cement liquid to drop into the molding cavity through the opening of the molding cavity upwards;

s3, press forming: pressing and forming the forming cavity injected with the plastic cement liquid in the step S2, pressing and sealing the top of the forming cavity through a pressing plate, pressing and forming the plastic cement liquid in the forming cavity by an inner core mold below the pressing plate, and keeping for a certain time to stabilize the formed battery case tissue;

s4, mold separation: performing film molding on the battery shell molded in the step S3, enabling the inner core mold to rise upwards while sliding towards the left side and the right side through the first molding mold and the second molding mold, enabling the outer wall of the molded battery shell to be separated from the first molding mold and the second molding mold, and then enabling the film pushing block to move downwards through a bearing block above the inner core mold by utilizing gravity to press the film pushing block downwards, so that the molded battery shell is separated from the inner core mold;

s5, air pressure demoulding: s4, downwards pressing the film pushing block to move downwards through the bearing block by using gravity, blowing air from the inside of each profile to the top of the formed battery shell through air pressure in the process of separating the formed battery shell from the inner core mold, and accelerating the demolding speed of the formed battery shell and the inner core mold by using the air pressure;

s6, ejection and demolding: if the battery shell and the inner core die are not successfully demolded by the air pressure demolding and the bearing block in the step S5, the inner core die is lifted upwards, the bearing block is lifted upwards to be contacted with the bottom surface of the top supporting plate, the bearing block is pressed by the top supporting plate to move downwards, and the molded battery shell and the inner core die are demolded and separated;

s7, repeated preparation: repeating the step S1 to the step S6, and circularly preparing a new battery shell;

the new energy automobile battery shell forming preparation process in the steps S1-S7 is mainly completed by matching a new energy automobile battery shell forming preparation device, the new energy automobile battery shell forming preparation device comprises a workbench with a horizontal top surface, a plurality of support legs standing upright on the bottom surface of the workbench are fixedly arranged on the bottom surface of the workbench, a sliding table is fixedly arranged in the middle of the top surface of the workbench, a first forming die is slidably connected to the left side of the top surface of the sliding table, a second forming die is slidably connected to the right side of the top surface of the sliding table, the first forming die and the second forming die are symmetrically arranged, half forming cavities are symmetrically formed in opposite surfaces of the first forming die and the second forming die, the forming cavity of the first forming die and the forming cavity of the second forming die are attached to form a complete forming cavity, electric push rods are symmetrically and fixedly arranged on the left side of the first forming die and the right side of the second forming die, and the electric push rods on each side are fixedly arranged at the top end of the workbench;

a top supporting plate is fixedly arranged above the workbench, a hydraulic cylinder is fixedly arranged in the middle of the top end of the top supporting plate, a polish rod extends downwards from the hydraulic cylinder, a pressing plate is fixedly arranged at the bottom end of the polish rod of the hydraulic cylinder, a raised inner core die is fixedly arranged below the pressing plate, and the inner core die is arranged right above the forming cavity;

the inner core mold is of a square block structure, the outline structure of the inner core mold is matched with the inner wall of the forming cavity, a plurality of upward sunken type grooves are formed in the bottom surface of the inner core mold at equal intervals, and the top surface of each type groove is a plane.

As a preferable technical scheme of the present invention, four side walls of the pressing plate extend toward four side walls of the inner core mold, through rectangular holes are symmetrically formed in the top surface of the pressing plate along four side wall surfaces of the inner core mold, a film pushing block is installed in each rectangular hole of the pressing plate in a sliding fit manner, the top end of each film pushing block extends toward the upper side of the pressing plate, and a bearing block is fixedly installed at the top end of each film pushing block extending above the pressing plate.

As a preferred technical scheme of the invention, the rear side of the workbench is rotatably connected with a rotating shaft rod standing upright on the ground, the top end of the rotating shaft rod is fixedly provided with a rolling disc with a cylindrical structure, the outer circular surface of the rolling disc is provided with glue injection rods at equal intervals, and the top end of each glue injection rod is fixedly provided with a glue injection pen;

an oil tank is fixedly mounted at the top end of the rolling disc, the oil tank is communicated with the glue injection pen through a pipeline in the rolling disc and each glue injection rod, a start-stop button is fixedly arranged on the outer circular surface of the rolling disc along the lower portion of each glue injection rod, a pressing rod is fixedly arranged above the workbench, an inclined guide inclined surface is arranged on the side wall of the start-stop button facing the rotation direction of the rolling disc, and the side wall of the pressing rod is in sliding contact with the surface of the start-stop button;

the bottom end of the rotating shaft rod is fixedly provided with a grooved wheel, the bottom end of the workbench is fixedly provided with a motor, the motor extends downwards to form an output shaft, the bottom end of the output shaft of the motor is fixedly provided with a thumb wheel, and the thumb wheel is in intermittent meshing connection with the grooved wheel.

As a preferred technical scheme of the present invention, the inner core mold includes an air inlet channel, a square hole shaped transmission cavity is formed inside the inner core mold, the transmission cavity of the inner core mold is disposed above the shaping grooves, an air inlet channel penetrating the top surfaces of the shaping grooves is formed along the upper side of each shaping groove on the bottom surface of the transmission cavity of the inner core mold, a support conveying pipe is fixedly installed in the air inlet channel, an air connecting nozzle is formed in the middle of a polish rod fixedly connected with the top surface of the inner core mold, the air connecting nozzle is connected with a main conveying pipe in the polish rod, and the bottom end of the main conveying pipe is connected in parallel with each support conveying pipe.

As a preferred technical scheme of the invention, the inner core mold further comprises a rack, a double-sided bevel gear, a second bevel gear, a rotating wheel, a synchronous chain, a main conveying pipe, a branch conveying pipe and a rotating shaft, wherein a sliding hole penetrating through the rectangular hole is formed in the inner wall of one side of a transmission cavity of the inner core mold, the rack is fixedly arranged on the inner wall of the film pushing block in the rectangular hole of one side, the rack extends into the transmission cavity, the rotating shaft is rotatably connected in the transmission cavity of the inner core mold, the double-sided bevel gear is fixedly arranged at one end of the rotating shaft, and one surface of the double-sided bevel gear is meshed with the rack;

a plurality of fan-shaped blocking pieces are arranged on the inner wall of the air inlet channel and close to the top surface of the groove, the fan-shaped blocking pieces are distributed on the inner wall of the air inlet channel at equal intervals along the axis of the air inlet channel according to the circumference, and each fan-shaped blocking piece slides on the inner wall of the air inlet channel along the top surface of the groove in parallel;

the top surface of each fan-shaped blocking piece is provided with a plane tooth, the inner wall of each air inlet channel is rotatably connected with a rotating wheel, the bottom surface of the rotating wheel is provided with a tooth surface meshed with the plane tooth, and the tooth surface of the bottom surface of the rotating wheel is meshed with the plane tooth of the top surface of each fan-shaped blocking piece;

two adjacent the outer disc meshing of swiveling wheel is connected with the synchronizing chain, is close to near the synchronizing chain outer disc the transmission chamber bottom surface of interior mandrel rotates and is connected with the second axis of rotation, the bottom surface fixed mounting of second axis of rotation have meshing gear the top fixed mounting of second axis of rotation has second bevel gear, second bevel gear with two-sided bevel gear meshing is connected.

As a preferred technical scheme of the invention, a spray head for downward spraying is fixedly arranged at the bottom end of each branch conveying pipe.

Compared with the prior art, the invention at least comprises the following beneficial effects:

1. according to the invention, the first forming die and the second forming die which are used in combination are mutually attached, so that the forming cavity of the first forming die and the forming cavity of the second forming die are combined to form a complete forming cavity with an upward opening; the demoulding can be realized without using a demoulding agent or only a small amount of demoulding agent when demoulding is realized, specifically, when the first forming die and the second forming die which are mutually attached are retreated towards the horizontal sides, the formed battery shell can be fixed on the inner core die which is a bulge and is embedded into the formed battery shell, the formed battery shell is fixed, and when the first forming die and the second forming die are retreated towards the horizontal sides, the adhesion of the battery shell and the inner walls of the forming cavities of the first forming die and the second forming die is avoided, the demoulding efficiency of the battery shell is improved, and the complicated operation of manual demoulding is reduced.

2. The invention intermittently swings the glue injection rod above the opening of the forming cavity, and forms interactive coordination movement with the reciprocating lifting of the inner core mold, after the inner core mold is lifted each time, the plastic liquid drops into the forming cavity through the glue injection rod, thereby realizing full-automatic glue supply, improving the production efficiency, saving the labor cost, pressing the top of the forming cavity downwards through the inner core mold after the plastic liquid drops fall into the forming cavity, pressing and sealing the top of the forming cavity through the pressing plate, leading the inner core mold below the pressing plate to press and form the plastic liquid in the forming cavity, and keeping a certain time, leading the structure of the formed battery shell to be stable, leading the bottom surface of the inner core mold to be provided with a plurality of upwards sunken type grooves at equal intervals, leading the formed battery shell to be internally provided with battery clapboards, realizing one-step forming of a plurality of structures, avoiding the operation of reprocessing of the battery shell, and improving the production efficiency.

3. The inner core die provided by the invention can be lifted upwards while sliding towards the left side and the right side through the first forming die and the second forming die, so that the outer wall of the formed battery shell is separated from the first forming die and the second forming die, and then the bearing block above the inner core die downwards presses the film pushing block to move downwards through gravity, so that the formed battery shell is ejected out, the separation of the battery shell and the inner core die is realized, the operation can realize automatic material ejection and demoulding without using any energy consumption, and the production cost of an enterprise is favorably saved.

4. In the process of separating the battery shell from the inner core die, air is blown from the inside of each profile to the top of the formed battery shell by air pressure, and the demolding speed of the formed battery shell and the inner core die is accelerated by the air pressure; if the battery shell and the inner core die are not successfully demolded through air pressure demolding and utilization of the bearing block, the inner core die is lifted upwards, the bearing block is lifted upwards to be contacted with the bottom surface of the top supporting plate, the bearing block is pressed to move downwards through the top supporting plate, and the molded battery shell and the inner core die are separated in a demolding mode.

5. The invention has the ingenious point that the inner core mold presses the film pushing block downwards by the aid of the bearing block through gravity to move downwards so as to separate the formed battery shell from the inner core mold.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a process flow diagram of the new energy automobile battery shell forming preparation process;

FIG. 2 is a front view structural schematic diagram of the new energy automobile battery case forming preparation device of the invention;

FIG. 3 is a left side view schematic structural diagram of the new energy automobile battery case forming preparation device of the invention;

FIG. 4 is a schematic structural view of the connection between the grooved wheel and the thumb wheel of the present invention;

fig. 5 is a front sectional view of the inner core of the present invention;

FIG. 6 is an enlarged view of a portion of FIG. 5 taken at B in the present specification;

FIG. 7 is a schematic left view of the structural drive of the present invention with the rack driving each of the rotatable wheels to rotate within the drive chamber;

FIG. 8 is a schematic bottom view of the inlet channel of the present invention on the top of the trough;

FIG. 9 is a schematic view of the drive connection between two adjacent wheels according to the present invention;

FIG. 10 is a schematic view of a battery case formed according to the present invention;

in the figure: 1. supporting legs; 2. a work table; 3. a sliding table; 4. a first molding die; 5. a second molding die; 6. an electric push rod; 7. rolling a disc; 8. rotating the shaft lever; 9. injecting a glue rod; 10. a glue injection pen; 11. an inner core mold; 1101. a double-sided bevel gear; 1102. a second bevel gear; 1103. a rotating wheel; 1104. a synchronization chain; 1105. a main conveying pipe; 1106. a conveying pipe is branched; 1107. a rotating shaft; 1108. a fan-shaped baffle plate; 11081. a face tooth; 1109. an air intake passage; 1110. a meshing gear; 1111. a second rotating shaft; 12. a pressing plate; 13. a profiled groove; 14. pushing a membrane block; 1401. a rack; 15. a bearing block; 16. a top support plate; 17. a top support frame; 18. a hydraulic cylinder; 19. a sheave; 20. an electric motor; 21. a thumb wheel; 22. a polish rod; 23. connecting an air faucet; 24. and forming a cavity.

Detailed Description

In order to make the technical means, the creation features, the achievement purposes and the effects of the invention easy to understand, the invention is further described below by combining with the specific drawings, and it is to be noted that the embodiments and the features in the embodiments can be combined with each other in the application without conflict.

Please refer to fig. 1-10, which are schematic structural diagrams illustrating an overall structure of a new energy vehicle battery case molding and manufacturing process;

a new energy automobile battery shell forming preparation process comprises the following steps:

s1, cavity synthesis: mutually attaching the first forming die 4 and the second forming die 5 which are used in combination, and combining the forming cavity 24 of the first forming die 4 and the forming cavity 24 of the second forming die 5 to form a complete forming cavity with an upward opening;

s2, injecting a plastic solution: injecting plastic cement liquid into the molding cavity 24 combined in the step S1, and enabling the plastic cement liquid to drop into the molding cavity 24 through the upward opening of the molding cavity 24;

s3, press forming: pressing and molding the molding cavity 24 filled with the plastic cement liquid in the step S2, pressing and sealing the top of the molding cavity 24 through the pressing plate 12, so that the inner core mold 11 below the pressing plate 12 presses and molds the plastic cement liquid in the molding cavity 24 and keeps for a certain time to stabilize the structure of the molded battery shell;

s4, separating the die: performing film molding on the battery case molded in the step S3, sliding the first molding die 4 and the second molding die 5 to the left and right sides, and simultaneously lifting the inner core die 11 upward to separate the outer wall of the molded battery case from the first molding die 4 and the second molding die 5, and then pressing the film pushing block 14 downward by using gravity through the bearing block 15 above the inner core die 11 to separate the molded battery case from the inner core die 11;

s5, air pressure demoulding: in the step S4, the film pushing block 14 is pressed downwards by the bearing block 15 through gravity to move downwards, in the process of separating the formed battery shell from the inner core mold 11, air is blown from the inside of each channel 13 to the top of the formed battery shell through air pressure, and the demolding speed of the formed battery shell and the inner core mold 11 is accelerated by the air pressure;

s6, ejection and demolding: if the battery case is not successfully demolded from the inner core mold 11 by the pneumatic demolding and the bearing block 15 in the step S5, the inner core mold 11 is lifted upwards, the bearing block 15 is lifted upwards to contact the bottom surface of the top support plate 16, the bearing block 15 is pressed by the top support plate 16 to move downwards, and the molded battery case is demolded and separated from the inner core mold 11;

the new energy automobile battery shell forming preparation process in the steps S1-S7 is mainly completed by matching a new energy automobile battery shell forming preparation device, the new energy automobile battery shell forming preparation device comprises a workbench 2 with a horizontal top surface, a plurality of support legs 1 standing upright on the bottom surface of the workbench 2 are fixedly arranged on the bottom surface of the workbench 2, a sliding table 3 is fixedly arranged in the middle of the top surface of the workbench 2, a first forming die 4 is slidably connected to the left side of the top surface of the sliding table 3, a second forming die 5 is slidably connected to the right side of the top surface of the sliding table 3, the first forming die 4 and the second forming die 5 are symmetrically arranged, half forming cavities 24 are symmetrically arranged on opposite surfaces of the first forming die 4 and the second forming die 5, the forming cavity 24 of the first forming die 4 is attached to the forming cavity 24 of the second forming die 5 to form a complete forming cavity 24, electric push rods 6 are symmetrically fixedly arranged on the left side of the second forming die 4 and the right side of the second forming die 5 to push the electric push rods 6 on each side, and the electric push rods 6 on each side are fixedly arranged at the top end of the workbench 2;

a top supporting plate 16 is fixedly arranged above the workbench 2, the front side of the top supporting plate 16 is fixed above the workbench 2 through a top supporting frame 17, a hydraulic cylinder 18 is fixedly arranged in the middle of the top end of the top supporting plate 16, a polish rod 22 extends downwards from the hydraulic cylinder 18, a pressing plate 12 is fixedly arranged at the bottom end of the polish rod 22 of the hydraulic cylinder 18, a convex inner core mold 11 is fixedly arranged below the pressing plate 12, and the inner core mold 11 is arranged right above the molding cavity 24;

the inner core mold 11 is a square block structure, the outline structure of the inner core mold 11 is matched with the inner wall of the forming cavity 24, a plurality of upward concave type grooves 13 are arranged on the bottom surface of the inner core mold 11 at equal intervals, and the top surface of each type groove 13 is a plane.

Specifically, the first forming die 4 and the second forming die 5 which are used in combination are attached to each other, so that the forming cavity 24 of the first forming die 4 and the forming cavity 24 of the second forming die 5 are combined to form a complete forming cavity 24 with an upward opening; the demolding of the molded battery shell can be realized without using a demolding agent or only a small amount of demolding agent during demolding, specifically, when the first molding die 4 and the second molding die 5 which are attached to each other are horizontally demolded towards two sides, the molded battery shell can be fixed on the inner core die 11 and is embedded into the molded battery shell through the protrusion of the inner core die 11, and the molded battery shell is fixed, so that when the first molding die 4 and the second molding die 5 are horizontally demolded towards two sides, the adhesion of the battery shell and the inner walls of the molding cavities 24 of the first molding die 4 and the second molding die 5 is avoided, the demolding efficiency of the battery shell is improved, and the complicated operation of manual demolding is reduced.

Specifically, the glue injection rod 9 intermittently swings above the opening of the forming cavity 24 to form interactive matching movement with the reciprocating lifting of the inner core mold 11, after the inner core mold 11 rises each time, plastic liquid drops fall into the forming cavity 24 through the glue injection rod 9, full-automatic glue supply is achieved, production efficiency is improved, labor cost is saved, after the plastic liquid drops fall into the forming cavity 24, the inner core mold 11 presses downwards, the pressing plate 12 presses and seals the top of the forming cavity 24, the inner core mold 11 below the pressing plate 12 presses and forms the plastic liquid in the forming cavity 24 and keeps a certain time, the formed battery shell is stable in structure, the bottom surface of the inner core mold 11 is provided with a plurality of upwards-concave grooves 13 at equal intervals, a battery partition board is arranged in the formed battery shell, a plurality of structures are formed at one time, reprocessing operation of the battery shell is omitted, and production efficiency is improved.

Specifically, the inner core mold 11 of the present invention slides to the left and right sides through the first molding mold 4 and the second molding mold 5, and simultaneously, the inner core mold 11 is lifted upward, so that the outer wall of the molded battery case is separated from the first molding mold 4 and the second molding mold 5, and then the bearing block 15 above the inner core mold 11 uses gravity to press the film pushing block 14 downward to push out the molded battery case, so as to realize separation of the battery case and the inner core mold 11, and the operation does not need any energy consumption to realize automatic material ejection and mold release, which is beneficial to saving the production cost of enterprises;

four lateral walls of the pressing plate 12 extend towards four lateral wall directions of the inner core mold 11, a through rectangular hole is symmetrically formed in the top surface of the pressing plate 12 along four lateral wall surfaces of the inner core mold 11, a film pushing block 14 is installed in each rectangular hole of the pressing plate 12 in a sliding fit mode, the top end of each film pushing block 14 extends towards the upper side of the pressing plate 12, and a bearing block 15 is fixedly arranged at the top end of each film pushing block 14 extending above the pressing plate 12.

the rear side of the workbench 2 is rotatably connected with a rotating shaft lever 8 standing on the ground, the top end of the rotating shaft lever 8 is fixedly provided with a rolling disc 7 with a cylindrical structure, glue injection rods 9 are arranged on the outer circular surface of the rolling disc 7 at equal intervals, and the top end of each glue injection rod 9 is fixedly provided with a glue injection pen 10;

an oil tank 25 is fixedly mounted at the top end of the rolling disc 7, the oil tank 25 is communicated with the glue injection pen 10 through a pipeline in the rolling disc 7 and each glue injection rod 9, an oil pump is fixedly mounted in the oil tank 25, the oil pump is driven by a servo motor to work to achieve quantitative feeding, a start-stop button 27 is fixedly arranged on the outer circular surface of the rolling disc 7 along the lower portion of each glue injection rod 9, a pressing rod 26 is fixedly arranged above the workbench 2, an inclined guide inclined surface is formed in the side wall of the start-stop button 27 facing the rotating direction of the rolling disc 7, and the side wall of the pressing rod 26 is in sliding contact with the surface of the start-stop button 27;

a grooved wheel 19 is fixedly arranged at the bottom end of the rotating shaft rod 8, a motor 20 is fixedly arranged at the bottom end of the workbench 2, an output shaft downwardly extends out of the motor 20, a thumb wheel 21 is fixedly arranged at the bottom end of the output shaft of the motor 20, and the thumb wheel 21 is intermittently meshed with the grooved wheel 19.

The rolling disc 7 intermittently rotates with the grooved pulley 19 through the shifting wheel 21 at the bottom to push the glue injection rod 9 on the rolling disc 7 to intermittently rotate above the molding cavity 24, when the glue injection rod 9 intermittently rotates at the top end of the molding cavity, the start-stop button 27 is firstly pressed and is not loosened when the glue injection rod 9 rotates above the molding cavity 24 every time, at the moment, the hydraulic cylinder 18 obtains a signal to control the inner core mold 11 to ascend upwards, the glue injection rod 9 moves into the molding cavity 24 again, at the moment, the glue injection pen 10 injects glue into the molding cavity 24, the inner core mold demolds the molded battery shell, the secondary common motion is realized, after the shifting wheel 21 intermittently rotates with the grooved pulley 19, the glue injection rod 9 moves out of the molding cavity 24 from the upper side, the start-stop button 27 is loosened, the hydraulic cylinder 18 obtains a signal to control the inner core mold 11 to press downwards, and the pressing molding of the glue injection liquid in the molding cavity 24 is realized.

Specifically, in the process of separating the battery shell from the inner core mold 11, air is blown from the inside of each mold channel to the top of the formed battery shell through air pressure, and the demolding speed of the formed battery shell and the inner core mold 11 is accelerated by utilizing the air pressure; if the battery shell is successfully demolded from the inner core mold 11 by air pressure demolding and utilizing the bearing block 15, the inner core mold 11 is lifted upwards, the bearing block 15 is lifted upwards to be contacted with the bottom surface of the top supporting plate, the bearing block 15 is pressed by the top supporting plate to move downwards, and the molded battery shell is separated from the inner core mold 11 in a demolding manner.

The inner core mold 11 comprises an air inlet channel 1109, a square hole-shaped transmission cavity is formed in the inner core mold 11, the transmission cavity of the inner core mold 11 is arranged above the groove 13, an air inlet channel 1109 penetrating through the top surface of the groove 13 is formed in the bottom surface of the transmission cavity of the inner core mold 11 along the upper portion of each groove 13, a support conveying pipe 1106 is fixedly installed in the air inlet channel 1109, an air connecting nozzle 23 is formed in the middle of a polished rod 22 fixedly connected with the top surface of the inner core mold 11, the air connecting nozzle 23 is connected with a main conveying pipe 1105 in the polished rod 22, and the bottom end of the main conveying pipe 1105 is connected with each support conveying pipe 1106 in parallel.

Specifically, the design of the invention has the ingenious point that the inner core mold 11 is arranged, the inner core mold 11 presses the film pushing block 14 downwards through the bearing block 15 by utilizing gravity to move downwards, and the formed battery shell is separated from the inner core mold 11, the invention skillfully utilizes the process that the film pushing block 14 moves downwards to push a plurality of fan-shaped blocking pieces 1108 in the air inlet channel 1109 on the top surface of each type groove 13 to be opened, so that the gas or fluid medium in the air inlet channel 1109 and the film pushing block 14 move together to push the battery shell downwards, and the formed battery shell is rapidly demoulded, and the air inlet channel 1109 is arranged on the top surface of each type groove 13, so that the formed battery shell can be effectively prevented from being stuck in the rapid demoulding process, and the demoulding smoothness of the formed battery shell is improved.

The inner core mould 11 further comprises a rack 1401, a double-sided bevel gear 1101, a second bevel gear 1102, a rotating wheel 1103, a synchronous chain 1104, a main conveying pipe 1105, a branch conveying pipe 1106 and a rotating shaft 1107, wherein a sliding hole penetrating through the rectangular hole is formed in the inner wall of one side of a transmission cavity of the inner core mould 11, the rack 1401 is fixedly arranged on the inner wall of a film pushing block 14 in the rectangular hole of one side, the rack 1401 extends into the transmission cavity, the rotating shaft 1107 is rotatably connected in the transmission cavity of the inner core mould 11, the double-sided bevel gear 1101 is fixedly arranged at one end of the rotating shaft 1107, and one surface of the double-sided bevel gear 1101 is meshed with the rack 1401;

a plurality of fan-shaped blocking pieces 1108 are arranged on the inner wall of the air inlet channel 1109 and close to the top surface of the type groove 13, the fan-shaped blocking pieces 1108 are distributed on the inner wall of the air inlet channel 1109 at equal intervals along the axis of the air inlet channel 1109 according to the circumference, and each fan-shaped blocking piece 1108 slides on the inner wall of the air inlet channel 1109 in parallel along the top surface of the type groove 13;

the top surface of each fan-shaped blocking piece 1108 is provided with plane teeth 11081, the inner wall of each air inlet channel 1109 is rotatably connected with a rotating wheel 1103, the bottom surface of the rotating wheel 1103 is provided with tooth surfaces meshed with the plane teeth 11081, and the tooth surfaces of the bottom surface of the rotating wheel 1103 are meshed with the plane teeth 11081 on the top surface of each fan-shaped blocking piece 1108;

the outer circular surfaces of two adjacent rotating wheels 1103 are in meshed connection with a synchronous chain 1104, the bottom surface of a transmission cavity of the inner core mold 11 close to the outer circular surfaces of the synchronous chain 1104 is rotatably connected with a second rotating shaft 1111, a meshed gear 1110 is fixedly installed on the bottom surface of the second rotating shaft 1111, a second bevel gear 1102 is fixedly installed at the top end of the second rotating shaft 1111, and the second bevel gear 1102 is in meshed connection with the double-sided bevel gear 1101.

The invention ingeniously utilizes the downward movement process of the film pushing block 14 to push the fan-shaped blocking pieces 1108 in the air inlet channel 1109 on the top surface of each groove 13 to open, so that gas or fluid medium in the air inlet channel 1109 and the film pushing block 14 move together to push the battery shell downward, the formed battery shell is rapidly demolded, the air inlet channel 1109 is arranged on the top surface of each groove 13, the formed battery shell can be effectively prevented from being clamped in the rapid demolding process, and the demolding smoothness of the formed battery shell is improved.

The bottom end of each branch conveying pipe 1106 is fixedly provided with a downward-spraying nozzle, gas or fluid medium is sprayed out through the nozzle, so that a negative pressure is formed in the groove 13 of the battery partition plate in the formed battery shell, the battery partition plate is pushed to slide in the groove 13, and the smoothness of demoulding of the battery shell on the inner core mould 11 can be effectively improved.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A new energy automobile battery shell forming preparation process is characterized by comprising the following steps:

s2, injecting a plastic cement liquid: injecting plastic cement liquid into the molding cavity combined in the step S1, and enabling the plastic cement liquid to drop into the molding cavity through the opening of the molding cavity upwards;

s3, press forming: pressing and molding the molding cavity injected with the plastic cement liquid in the step S2, pressing and sealing the top of the molding cavity through a pressing plate, pressing and molding the plastic cement liquid in the molding cavity by an inner core mold below the pressing plate, and keeping for a certain time to stabilize the structure of the molded battery case;

s5, air pressure demoulding: s4, downwards pressing the film pushing block to move downwards through the bearing block by using gravity, blowing air from the top of the formed battery shell to the top of the formed battery shell in each mould passage by using air pressure in the process of separating the formed battery shell from the inner core mould, and accelerating the demoulding speed of the formed battery shell and the inner core mould by using the air pressure;

2. The new energy automobile battery shell forming preparation process according to claim 1, characterized in that: four lateral walls of the press plate to four lateral wall directions of interior mandrel are stretched out, the top surface of press plate is followed four lateral wall face symmetries of interior mandrel are seted up the rectangular hole that link up, install through sliding fit mode and push away the membrane piece in each rectangular hole of press plate, each push away the top of membrane piece to stretch out according to the top of press plate, each is stretched out according to the press plate top push away the membrane piece top and set firmly the bearing block.

3. The new energy automobile battery shell forming preparation process according to any one of claims 1 or 2, characterized in that: the rear side of the workbench is rotatably connected with a rotating shaft lever standing on the ground, the top end of the rotating shaft lever is fixedly provided with a rolling disc with a cylindrical structure, glue injection rods are arranged on the outer circular surface of the rolling disc at equal intervals, and the top end of each glue injection rod is fixedly provided with a glue injection pen;

4. The forming preparation process of the new energy automobile battery shell as claimed in claim 1, characterized in that: the inner core mould includes inlet channel, the transmission chamber of square hole form is seted up to the inside of inner core mould, the transmission chamber of inner core mould sets up in the top in type groove, each is followed to the transmission chamber bottom surface of inner core mould the inlet channel who link up in type groove top respectively has been seted up one in the top in type groove, fixed mounting has a conveyer pipe in the inlet channel, with inner core mould top surface fixed connection's polished rod middle part has been seted up the air cock, the air cock is in the polished rod in-connection has a main conveyer pipe, main conveyer pipe bottom and each the conveyer pipe is parallelly connected.

5. The new energy automobile battery shell forming preparation process according to claim 4, characterized in that: the inner core mold further comprises a rack, a double-sided bevel gear, a second bevel gear, a rotating wheel, a synchronous chain, a main conveying pipe, a branch conveying pipe and a rotating shaft, wherein a sliding hole penetrating through the rectangular hole is formed in the inner wall of one side of a transmission cavity of the inner core mold, the rack is fixedly arranged on the inner wall of the film pushing block in the rectangular hole of one side, the rack extends into the transmission cavity, the rotating shaft is rotatably connected into the transmission cavity of the inner core mold, the double-sided bevel gear is fixedly arranged at one end of the rotating shaft, and one surface of the double-sided bevel gear is meshed with the rack;

6. The new energy automobile battery shell forming preparation process according to claim 4, characterized in that: the bottom end of each branch conveying pipe is fixedly provided with a spray head which sprays downwards.