Reinforcing device, battery case production line and battery case forming process

Abstract

The invention relates to a reinforcing device, a battery case production line and a forming process. The reinforcing device comprises a material area, a base, a first mould, a first feeding assembly and a pressing assembly. A first needling clamping jaw of the first feeding assembly grabs the upper end of the first face of the reinforcing material from a material area in a needling mode, the reinforcing material is in a drooping state under the action of gravity, and when the reinforcing material moves to the first material groove, the reinforcing material can completely fall into the first material groove. And a first needling clamping jaw of the first feeding assembly is retracted, a needling mechanism in the first material groove is used for needling and fixing the second face of the reinforcing material, and alternate fixing of the reinforcing material is completed. The heating part heats the reinforcing material in the first material groove, so that the sticky face is sticky, the glass fabric is softened, the prefabricated material is placed on the first pedestal and arranged on the outer side of the first molding bed in a sleeving mode, the pressing head stretches out to press the reinforcing material and the prefabricated material together, automatic reinforcement of the prefabricated material on the corners of the side faces is achieved, the reinforcing fitting precision is high, and the reinforcing efficiency is high.

Description

Technical Field

[0001] The present invention relates to the technical field of battery shells, and in particular to a reinforcement device, a battery shell production line and a molding process. Background Art

[0002] Glass fiber has the advantages of high temperature resistance, flame resistance, corrosion resistance, good sound insulation, high tensile strength, and good electrical insulation. Therefore, glass fiber is often used as an electrical insulating material, such as new energy battery shells.

[0003] The production of battery shells usually includes the following steps: (1) cutting glass fiber cloth to obtain shell material, reinforcement material and flange material; (2) fixing the multi-layer shell material with staples; (3) manually transferring to a heating machine for heating and bonding; (4) manually transferring to a press to press the preform; (5) manually removing staples and trimming; (6) fixing the preform and flange edge, or fixing the preform and reinforcement material with staples; (7) manually hot pressing and reinforcing the battery shell with an electric hot iron. This method has the following defects:

[0004] (1) Since a large amount of filaments will fall off during the production of glass fiber, it is easy to cause harm to the workers;

[0005] (ii) Bonding, heating and transfer are all manual operations, bonding and heating are uneven, manual trimming is required, the operation precision is low, the reinforcement and bonding effect is poor, and the yield rate is low;

[0006] (3) There are many manual operation steps, the production rhythm is difficult to control, and the production efficiency is low.

[0007] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present disclosure, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Summary of the invention

[0008] In view of the deficiencies in the prior art, the embodiments of the present invention disclose a battery shell production line and a molding process to solve the problems of low production efficiency and low yield of battery shells.

[0009] The technical solution adopted by the present invention is as follows:

[0010] A reinforcement device, the reinforcement device comprises: a first mold, including: a first pedestal; a first mold, arranged at the upper end of the first pedestal, with four sides of the upper surface and four sides of the side having chamfers; a first material trough, opened at the four corners of the side of the first mold along the thickness direction; a heating part and a needling mechanism, arranged in the first mold, the position corresponding to the first material trough; a first feeding assembly, arranged on the side of the first mold; a pressing assembly, arranged at the four corners of the side of the first mold, having a pressing head extending toward the first material trough, the inner shape of the pressing head matches the shape of the first material trough; wherein the first feeding assembly grabs the upper end of the sticky surface of the reinforcement material and transfers it to the first material trough, the depth of the first material trough is less than the thickness of the reinforcement material, the needling mechanism fixes the non-sticky surface of the reinforcement material by needling, the heating part heats the reinforcement material, the prefabricated material is placed on the first pedestal and sleeved on the outer side of the first mold, the pressing head extends to press the reinforcement material and the prefabricated material together to obtain a reinforced battery shell.

[0011] Its further technical solution is that the reinforcing device includes: a material area, on which reinforcing material is placed, the first surface of the reinforcing material is a sticky surface, and the second surface is a non-sticky surface; the reinforcing material is a rounded rectangle; the battery shell includes: a shell portion, which is a rectangular block with an opening facing downward, and the four sides of the upper end and the four sides of the side have chamfers, which cooperate with the first tire mold; a flange edge, which is arranged at the lower end of the side of the shell portion, is a rounded rectangular frame, which cooperates with the first pedestal; the prefabricated material is the same shape as the battery shell, and there are gaps at the four corners of the side.

[0012] Its further technical solution is that the first loading component includes: a first three-axis transfer machine, having a first frame that can rotate and move along the X-axis, Y-axis and Z-axis; a first acupuncture clamp, having at least four, the position of which corresponds to the first material trough, arranged at the lower end of the first frame, and having cross-retractable needles; a first visual camera, arranged at the lower end of the first frame.

[0013] A further technical solution is that the pressing assembly includes: a first vertical moving mechanism, having a first slider movable along the Y-axis; a first horizontal moving mechanism, connected to the first slider, having a second slider movable toward the first material trough; and a pressing head, connected to the second slider.

[0014] A further technical solution is that the reinforcement device comprises: a base, which is arranged on the ground; wherein the first pedestal is arranged on the upper end of the base.

[0015] The present invention also discloses a battery shell production line, which includes: a winding machine for unwinding glass fiber cloth; a cutting machine, which is arranged at the rear end of the winding machine, receives the glass fiber cloth unwinded by the winding machine and cuts it to obtain reinforcing material, flange material and shell material, wherein the first surface of the reinforcing material and the flange material is a sticky surface, and the second surface is a non-sticky surface, and the first surface of the shell material is a non-sticky surface, and the second surface is a sticky surface; a heating machine, which is arranged at the rear end of the cutting machine, and heats the shell material; a preforming press, which is arranged at the rear end of the heating machine, and presses the shell material and the flange material together to form a preformed material; a third feeding component, which is erected on the ground, passes through the heating machine and the preforming press, and is configured to transfer the shell material from the heating machine to the preforming press; the reinforcement device, as mentioned above, is arranged at the rear end of the preforming press, heats the reinforcing material, and presses the reinforcing material and the preformed material together, wherein the first feeding component is also configured to transfer the preformed material from the preforming press to the first mold.

[0016] Its further technical solution is that the upper roll machine also includes: a first platform; an upper roll rack, which is arranged at the upper end of the first platform; a roller body, which is rotatably arranged between the upper roll racks; a glass fiber cloth roll, which is sleeved on the roller body; the cutting machine also includes: a second platform, which is connected to the rear end of the first platform, and a conveyor belt is arranged at the upper end, and the unrolled glass fiber cloth is conveyed by the conveyor belt; a laser cutting machine is arranged at the upper end of the second platform; the heating machine also includes: a first frame, which is arranged at the rear end of the second platform; a first heating plate, which can be slid up and down in the first frame; a fourth platform, which is arranged in the first frame, and its position corresponds to the rear end of the second platform; a second heating plate is arranged on the surface of the fourth platform; wherein, the first heating plate descends and heats the shell material with the second heating plate; the preforming press also includes: a second machine A frame is arranged at the rear end of the first frame; a workbench is arranged at the lower end inside the second frame; a lower mold is arranged on the surface of the workbench, and its shape is the same as the combination of the first base and the first tire mold; an upper mold is slidably arranged in the second frame and cooperates with the lower mold; wherein the upper mold descends and closes with the lower mold to press the shell material and the flange material into prefabricated materials; the third feeding assembly also includes: a guide rail, which has two rails, which are symmetrically arranged on the ground and pass through both sides of the fourth platform and the workbench; a third horizontal moving mechanism has two groups, each group has two rails, which are symmetrically slidably arranged on the guide rails; a third vertical moving mechanism is arranged at the upper end of the third horizontal moving mechanism, and has a third slider that can move along the Y axis; a rod body is connected between the two parallel third sliders; a first clamp is arranged on the rod body.

[0017] Its further technical solution is that the battery shell production line also includes a loading platform and a second loading assembly, and the loading platform includes: a third platform, arranged between the second platform and the fourth platform, and a first groove is opened on the upper surface corresponding to the four corners of the shell material; a positioning mechanism is arranged on the surface of the third platform, against the side of the shell material; the second loading assembly is arranged between the cutting machine and the loading platform, and is configured to transfer the shell material from the second platform to the third platform; the guide rail passes through both sides of the third platform, and the moving path of the first clamp passes above the third platform.

[0018] Its further technical solution is that the winding machine and the cutting machine have two groups, one group of the winding machine and the cutting machine is arranged at the front end of the heating machine and the cutting machine cuts the shell material, and the other group of the winding machine and the cutting machine is arranged on the side of the material area and the cutting machine cuts the flange material and the reinforcing material; the battery shell production line also includes a fourth feeding assembly, which is arranged on the side of the material area and is configured to transfer the flange material and the reinforcing material from the second platform to the material area; wherein the first feeding assembly grabs the flange material from the material area and transfers it to the lower mold.

[0019] The present invention also discloses a battery shell forming process, comprising the following steps: step S1, a winder unwinds a glass fiber cloth, and a cutting machine cuts the glass fiber cloth to obtain a reinforcing material, a flange material and a shell material; step S2, the shell material is transferred to a heating machine, and the heating machine heats the shell material to 180-200°C; the reinforcing material is transferred to a first material trough at the four corners of the side of the first mold of a reinforcement device, and the heating part in the first material trough heats the reinforcing material to 180-200°C; step S3, the flange material and the shell material are transferred to a preforming press in turn, and the preforming press presses the shell material and the flange edge together to obtain a prefabricated material; step S4, a pressing assembly presses the prefabricated material and the reinforcing material together to obtain a reinforced battery shell.

[0020] The beneficial effects of the embodiments of the present invention are as follows:

[0021] (1) The reinforcement device of the present invention includes a material area, a base, a first mold, a first feeding assembly and a pressing assembly. The first needling claw of the first feeding assembly grabs the upper end of the first surface of the reinforcing material from the material area by needling. The reinforcing material is in a drooping state under the action of gravity. When it moves to the first material trough, most of the reinforcing material falls into the first material trough, and a small part is placed on the first pedestal. The first needling claw of the first feeding assembly is retracted, and the needling mechanism in the first material trough fixes the second surface of the reinforcing material by needling, thereby completing the alternating fixation of the reinforcing material. The heating part heats the reinforcing material in the first material trough to make the sticky surface sticky and soften the fiberglass cloth. The prefabricated material is placed on the first pedestal and sleeved on the outside of the first mold. The pressure head extends to press the reinforcing material and the prefabricated material together, thereby realizing automatic reinforcement of the corners of the side surfaces of the prefabricated material, with high reinforcement and bonding accuracy and high reinforcement efficiency.

[0022] (ii) The battery shell production line of the present invention is arranged in sequence by a winding machine, a cutting machine, a feeding table, a second feeding assembly, a heating machine, a preforming press, a third feeding assembly and a reinforcement device. The winding machine unwinds the fiberglass cloth, and the cutting machine cuts the fiberglass cloth to obtain reinforcing material, flange material and shell material. The heating unit heats the reinforcing material, the heating machine heats the shell material, the preforming press presses the shell material and the flange edge together to obtain a prefabricated material, and then the prefabricated material and the reinforcing material are pressed together to obtain a battery shell, thereby realizing the automated production and reinforcement of the battery shell, avoiding manual operation, and improving production efficiency and production safety.

[0023] (III) The battery shell production process of the present invention simultaneously cuts the shell material, the reinforcing material and the flange material, then simultaneously forms the prefabricated material and heats the reinforcing material, and finally forms the reinforced battery shell. The production rhythm is controllable and efficient and fast, and the production efficiency is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is an axonometric view of the reinforcement device of the present invention.

[0025] Figure 2 It is an axonometric view of the first mold and the first feeding assembly in the reinforcement device of the present invention.

[0026] Figure 3 It is a schematic side structural diagram of the first mold and the first feeding assembly in the reinforcement device of the present invention.

[0027] Figure 4 It is a schematic diagram of the internal structure of the first mold in the reinforcing device of the present invention.

[0028] Figure 5 It is an axonometric view of the battery case of the present invention.

[0029] Figure 6 It is an axonometric view of a coiling machine, a cutting machine, a loading table, a heating machine, a second three-axis transfer machine and a third loading assembly in the battery shell production line of the present invention.

[0030] Figure 7 It is an axonometric view of the winding machine, cutting machine and second three-axis transfer machine in the battery shell production line of the present invention.

[0031] Figure 8 for Figure 6 Enlarged view at A.

[0032] Fig. 9 It is an axonometric view of a heating machine in a battery shell production line of the present invention.

[0033] Fig.10 It is a front view structural schematic diagram of a heating machine in a battery shell production line of the present invention.

[0034] Fig.11 for Fig. 9 Enlarged view at B.

[0035] Fig.12 It is an axonometric view of a preforming press, a reinforcing device, a winding machine and a cutting machine in a battery shell production line of the present invention.

[0036] Fig.13 It is a front view structural schematic diagram of a preforming press in a battery shell production line of the present invention.

[0037] Fig.14 Flow chart of the battery shell molding process of the present invention

[0038] In the figure:

[0039] 1. Reinforcement device; 11. Base; 12. First mold; 121. First pedestal; 122. First mold; 123. First material trough; 124. Heating unit; 125. Needle punch mechanism; 13. First feeding assembly; 131. First three-axis transfer machine; 132. First frame; 1321. Upper frame; 1322. Lower frame; 1323. Fourth vertical moving mechanism; 133. First needling clamp; 134. First visual camera; 14. Pressing assembly; 141. First vertical moving mechanism; 142. First horizontal moving mechanism; 143. Press head; 15. Material area; 151. Reinforcement material; 152. Flange material; 2. Coiling machine; 21. First platform; 22. Coiling rack; 23. Roller; 24. Fiberglass cloth roll; 3. Cutting machine; 31. Second platform; 32. Laser cutting machine; 33. Shell material; 4. Second feeding assembly; 41. Second three-axis transfer machine; 42. Second frame; 43. Second acupuncture clamp; 44. Second visual camera; 5. Feeding platform; 51. Third platform; 511. First groove; 52. Positioning mechanism; 6. Heating machine; 61. First frame; 62. First heating plate; 63. Fourth platform; 64. Second heating plate; 641. Second groove; 65. Second vertical moving mechanism; 66. Third frame; 67. Steel wire; 7. Preforming press; 71. Second frame; 72. Upper mold; 73. Workbench; 74. Lower mold; 8. Third feeding assembly; 81. Guide rail; 82. Third horizontal moving mechanism; 83. Third vertical moving mechanism; 84. Rod body; 9. Fourth feeding assembly; 10. Battery shell; 101. Shell; 102. Flange. DETAILED DESCRIPTION

[0040] The specific implementation of the present invention is described below in conjunction with the accompanying drawings.

[0041] In order to make the purpose, technical scheme and advantages of the present invention clearer, the device proposed by the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. According to the following description, the advantages and features of the present invention will be clearer. It should be noted that the accompanying drawings adopt a very simplified form and use non-precise proportions, which are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention. In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, please refer to the accompanying drawings. It should be noted that the structure, proportion, size, etc. illustrated by the accompanying drawings of this specification are only used to match the content disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention, so they have no technical substantive significance. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effect that the present invention can produce and the purpose that can be achieved, should still fall within the scope of the technical content disclosed by the present invention.

[0042] First embodiment:

[0043] This embodiment discloses a reinforcement device 1 .

[0044] like Figure 1 As shown, the reinforcing device 1 includes a material area 15 , a base 11 , a first mold 12 , a first feeding assembly 13 and a pressing assembly 14 .

[0045] like Figure 1 As shown, a reinforcing material 151 is placed on the material area 15, and the first side of the reinforcing material 151 is a sticky side, and the second side is a non-sticky side. Exemplarily, the reinforcing material 151 is a rounded rectangle. The first side faces upward, and the second side faces downward. The sticky side is coated with shaping powder, which begins to melt when heated to above 60°C, and the non-sticky side has no shaping powder.

[0046] like Figure 2 As shown, the base 11 is arranged on the ground.

[0047] like Figure 2 to Figure 4As shown, the first mold 12 includes a first stand 121, a first mold 122, a first material trough 123, a heating unit 124 and a needle-piercing mechanism 125. The first mold 122 is arranged at the upper end of the first stand 121, and the four sides of the upper surface and the four sides of the side surface are chamfered. The first material trough 123 is opened at the four corners of the side of the first mold 122 along the thickness direction, and the depth is less than the thickness of the reinforcing material 151. The heating unit 124 is arranged in the first mold 122, and the position corresponds to the first material trough 123. The needle-piercing mechanism 125 is arranged in the first mold 122, and the position corresponds to the first material trough 123. Exemplarily, the first stand 121 is arranged at the upper end of the base 11 to raise the height of the first mold 12, so as to facilitate docking with the preforming press 7 and the like. The needle-piercing mechanism 125 is a plurality of needles that are telescopically arranged in the first material trough 123. The heating portion 124 is a heating rod or a heating wire buried in the first material tank 123 .

[0048] like Figure 1 to Figure 3 As shown, the first feeding assembly 13 is arranged on the side of the material area 15 and the first mold 12. Exemplarily, the first feeding assembly 13 includes a first three-axis transfer machine 131, a first needling clamp 133 and a first visual camera 134. The first three-axis transfer machine 131 has a first frame 132 that can rotate and move along the X-axis, Y-axis and Z-axis. The first three-axis transfer machine 131 can use a commercially available three-axis manipulator. Specifically, the first frame 132 includes an upper frame 1321 and a lower frame 1322. The upper frame 1321 is provided with a first needling clamp 133 for grabbing the prefabricated material corresponding to the middle part of the prefabricated material, and the first needling clamp 133 for grabbing the reinforcing material 151 is provided corresponding to the first material trough 123. The lower frame 1322 is provided with a first needling clamp 133 for grabbing the flange material 152 corresponding to the first pedestal 121. The four corners of the lower frame 1322 also have square half frames to avoid the corners of the first mold 12. The upper frame 1321 and the lower frame 1322 are connected by a fourth vertical moving mechanism 1323, and the fourth vertical moving mechanism 1323 drives the lower frame 1322 to rise and fall relative to the upper frame 1321 to meet the needs of grabbing different materials. The first acupuncture clamp 133 has cross-retractable needles, and the number of the first acupuncture clamp 133 increases or decreases according to demand. The first visual camera 134 is set at the lower end of the first frame 132. When the first visual camera 134 is working, it can determine its own position by detecting the edge position of the base 11, so as to achieve accurate loading.

[0049] like Figure 2 and Figure 3As shown, the pressing assembly 14 is arranged at the four corners of the side of the first mold 12, and has a pressing head 143 that is telescopic toward the first material trough 123, and the inner shape of the pressing head 143 matches the shape of the first material trough 123. Exemplarily, four pressing assemblies 14 are arranged on the diagonal of the first mold 12. The pressing assembly 14 includes a first vertical moving mechanism 141, a first horizontal moving mechanism 142 and a pressing head 143. The first vertical moving mechanism 141 has a first slider that can move along the Y axis. The first vertical moving mechanism 141 can be erected on the ground or connected to the four corners of the first frame 132. The first horizontal moving mechanism 142 is connected to the first slider and has a second slider that moves toward the first material trough 123, and the moving direction corresponds to the diagonal of the first mold 12. The pressing head 143 is connected to the second slider.

[0050] Please refer to Figure 5 , further, the pressing mechanism presses the reinforcing material 151 and the prefabricated material together to obtain a reinforced battery shell 10. The battery shell 10 includes a shell portion 101 and a flange edge 102. The shell portion 101 is a rectangular parallelepiped with an opening facing downward, and the four sides at the upper end and the four sides at the side have chamfers, which cooperate with the first mold 122. The flange edge 102 is arranged at the lower end of the side of the shell portion 101, and is a square frame with chamfers at the four corners, which cooperates with the first base 121. The prefabricated material has the same shape as the battery shell 10, and the flange edge 102 is reinforced, but there are gaps at the four corners of the side, which need to be reinforced by the reinforcing material 151.

[0051] In this embodiment, the first needling clamp 133 of the first feeding assembly 13 grabs the upper end of the first surface of the reinforcing material 151 from the material area 15 by needling. The reinforcing material 151 is in a drooping state under the action of gravity. When it moves to the first material trough 123, most of the reinforcing material 151 falls into the first material trough 123, and a small part is placed on the first pedestal 121. The first needling clamp 133 of the first feeding assembly 13 is retracted, and the needling mechanism 125 in the first material trough 123 fixes the second surface of the reinforcing material 151 by needling, completing the alternating fixation of the reinforcing material 151. The heating part 124 heats the reinforcing material 151 in the first material trough 123, making the sticky surface sticky and softening the glass fiber cloth. The prefabricated material is placed on the first pedestal 121 and sleeved on the outside of the first tire mold 122. The pressing head 143 extends to press the reinforcing material 151 and the prefabricated material together, realizing automatic reinforcement of the corners of the side surfaces of the prefabricated material.

[0052] Second embodiment:

[0053] This embodiment discloses a battery shell production line.

[0054] like Figure 6 and Fig.12As shown, the battery shell production line includes a coiling machine 2, a cutting machine 3, a feeding table 5, a second feeding assembly 4, a heating machine 6, a preforming press 7, a third feeding assembly 8 and a reinforcing device 1.

[0055] like Figure 7 As shown, the upper winder 2 unwinds the fiberglass cloth. Exemplarily, the upper winder 2 also includes a first platform 21, an upper roll frame 22, a roller body 23 and a fiberglass cloth roll 24. The upper roll frame 22 is arranged at the upper end of the first platform 21, the roller body 23 is rotatably arranged between the upper roll frames 22, and the fiberglass cloth roll 24 is sleeved on the roller body 23. Specifically, there are two upper winders 2, and each first platform 21 has multiple groups of upper roll frames 22, roller bodies 23 and fiberglass cloth rolls 24. The sticky surfaces of the fiberglass cloth rolls 24 face the same direction. When unwinding, multiple layers of fiberglass cloth are stacked together, and the number of stacked layers is determined according to the required strength of the battery shell 10.

[0056] like Figure 7 As shown, the cutting machine 3 is arranged at the rear end of the winding machine 2, receives the glass fiber cloth unwound by the winding machine 2 and cuts it to obtain the reinforcing material 151, the flange material 152 and the shell material 33, wherein the first surface of the reinforcing material 151 and the flange material 152 is a sticky surface, and the second surface is a non-sticky surface, and the first surface of the shell material 33 is a non-sticky surface, and the second surface is a sticky surface. Exemplarily, the cutting machine 3 also includes a second platform 31 and a laser cutting machine 32. The second platform 31 is connected to the rear end of the first platform 21, and a conveyor belt is arranged on the second platform 31, and the unwound glass fiber cloth is conveyed by the conveyor belt. The laser cutting machine 32 is arranged at the upper end of the second platform 31. The reinforcing material 151 is a rounded rectangle. The flange material 152 is a rounded rectangular frame. The shell material 33 is square, and has square notches at the four corners.

[0057] like Figure 8 As shown, the loading platform 5 includes a third platform 51 and a positioning mechanism 52. The third platform 51 is arranged at the rear end of the second platform 31. The positioning mechanism 52 is arranged on the surface of the third platform 51, against the side of the shell material 33, so as to position the shell material 33. Specifically, the positioning mechanism 52 is a baffle, which is screwed to the surface of the third platform 51, and can adjust the position of the baffle according to different sizes of the shell material 33 to ensure that the shell material 33 is centered.

[0058] like Figure 7As shown, the second loading assembly 4 is arranged between the cutting machine 3 and the loading platform 5, and is configured to transfer the shell material 33 from the second platform 31 to the third platform 51. Exemplarily, the second loading assembly 4 includes a second three-axis transfer machine 41, a second acupuncture clamp 43 and a second visual camera 44. The second three-axis transfer machine 41 has a second frame 42 that can rotate and move along the X-axis, Y-axis and Z-axis. The second three-axis transfer machine 41 can adopt a commercially available three-axis manipulator. The second acupuncture clamp 43 array is arranged at the lower end of the second frame 42, and has cross-retractable needles to facilitate the grasping of the shell material 33. The second visual camera 44 is arranged at the lower end of the second frame 42. When the second visual camera 44 is working, it can determine its own position by detecting the edge position of the second platform 31, thereby achieving accurate loading.

[0059] like Fig. 9 and Fig.10 As shown, the heating machine 6 is arranged at the rear end of the loading platform 5 to heat the shell material 33. Exemplarily, the heating machine 6 also includes a first frame 61, a first heating plate 62, a fourth platform 63 and a second heating plate 64. The first frame 61 is arranged at the rear end of the second platform 31, and the first heating plate 62 is slidably arranged in the first frame 61. The fourth platform 63 is arranged at the rear end of the second platform 31, and the position corresponds to the first frame 61. The second heating plate 64 is arranged on the surface of the fourth platform 63. Among them, the first heating plate 62 descends, and the shell material 33 is attached to the two heating plates for heating by relying on the dead weight of the first heating plate 62.

[0060] like Fig.12 and 13 As shown, the preforming press 7 is arranged at the rear end of the heating machine 6 to press the shell material 33 and the flange material 152 together to form a prefabricated material. Exemplarily, the preforming press 7 also includes a second frame 71, a workbench 73, a lower mold 74 and an upper mold 72. The second frame 71 is arranged at the rear end of the first frame 61, and the workbench 73 is arranged at the lower end inside the second frame 71. The lower mold 74 is arranged on the surface of the workbench 73, and has a second seat and a second tire membrane with the same shape as the first seat 121 and the first tire mold 122. The upper mold 72 is slidably arranged in the second frame 71 up and down, and cooperates with the lower mold 74. Among them, the upper mold 72 descends and closes with the lower mold 74 to press the shell material 33 and the flange material 152 into a prefabricated material.

[0061] like Figure 8As shown, the third loading assembly 8 is erected on the ground, passes through the heating machine 6 and the preforming press 7, and is configured to transfer the shell material 33 from the loading platform 5 to the heating machine 6 and from the heating machine 6 to the preforming press 7. Exemplarily, the third loading assembly 8 also includes a guide rail 81, a third horizontal moving mechanism 82, a third vertical moving mechanism 83, a rod body 84 and a plurality of first clamps. The guide rail 81 has two, symmetrically arranged on the ground, passing through both sides of the fourth platform 63, the workbench 73 and the third platform 51. The third horizontal moving mechanism 82 has two groups, each group has two, symmetrically slidably arranged on the guide rail 81, and the third vertical moving mechanism 83 is arranged at the upper end of the third horizontal moving mechanism 82, and has a third slider that can move along the Y axis. The third horizontal moving mechanism 82 and the third vertical moving mechanism 83 can use commercially available screw motors. The rod body 84 is connected between two parallel third sliders, and the first clamping jaw is arranged on the rod body 84, and the moving path passes through the third platform 51, the fourth platform 63 and the top of the workbench 73. Preferably, the upper surface of the third platform 51 is provided with first grooves 511 corresponding to the four corners of the shell material 33, so that the first clamping jaw can be inserted into the first grooves 511, clamp the shell material 33 from the side and tighten it through the two sets of first clamping jaws, thereby improving the surface flatness of the battery shell 10.

[0062] like Fig.12 As shown, the reinforcement device 1 is arranged at the rear end of the preforming press 7 as mentioned above, heats the reinforcement material 151, and presses the reinforcement material 151 and the preform together, wherein the first feeding component 13 is also configured to transfer the preform from the preforming press 7 to the first mold 12.

[0063] like Figure 7 and Fig.12 As shown, preferably, there are two groups of winding machines 2 and cutting machines 3, one group of winding machines 2 and cutting machines 3 is arranged at the front end of the heating machine 6 and the cutting machine 3 cuts the shell material 33, and the other group of winding machines 2 and cutting machines 3 is arranged on the side of the material area 15 and the cutting machine 3 cuts the flange material 152 and the reinforcing material 151. The battery shell production line also includes a fourth feeding assembly 9, which is arranged on the side of the material area 15 and is configured to transfer the flange material 152 and the reinforcing material 151 from the second platform 31 to the material area 15. The structure of the fourth feeding assembly 9 is the same as that of the first feeding assembly 13. Among them, the first feeding assembly 13 also grabs the flange material 152 from the material area 15 and transfers it to the lower mold 74.

[0064] like Figures 9-11As shown, further, a second groove 641 is provided on the upper surface of the fourth platform 63, and the gap of the second groove 641 is small, which will not affect the hot pressing of the shell material 33. The heating machine 6 also includes a lifting mechanism. The lifting mechanism includes a second vertical moving mechanism 65, a third frame 66 and a steel wire 67. The second vertical moving mechanism 65 is arranged at the lower end of the fourth platform 63, and has a fourth slider movable along the Y-axis. The third frame 66 is connected to the fourth slider and is sleeved on the outer side of the fourth platform 63. The steel wire 67 is connected to the upper end of the third frame 66 and passes through the second groove 641. Among them, the second vertical moving mechanism 65 drives the fourth slider to rise, the fourth slider drives the third frame 66 to rise, and the third frame 66 drives the steel wire 67 to rise and lift the shell material 33, which is convenient for grabbing the shell material 33.

[0065] In this embodiment, by sequentially arranging a winding machine 2, a cutting machine 3, a feeding table 5, a second feeding assembly 4, a heating machine 6, a preforming press 7, a third feeding assembly 8 and a reinforcement device 1, the winding machine 2 unwinds the fiberglass cloth, the cutting machine cuts the fiberglass cloth to obtain a reinforcing material 151, a flange material 152 and a shell material 33, the heating machine 6 heats the shell material 33, the preforming press 7 presses the shell material 33 and the flange edge 102 together to obtain a prefabricated material, the reinforcement device 1 heats the reinforcing material 151, and then presses the prefabricated material and the reinforcing material 151 together to obtain a battery shell 10, thereby realizing the automated production and reinforcement of the battery shell 10, avoiding manual operation, and improving production efficiency and production safety.

[0066] Third embodiment:

[0067] like Fig.14 As shown, this embodiment discloses a battery shell forming process, comprising the following steps:

[0068] Step S1 , the reel 2 unwinds the glass fiber cloth, and the cutting machine cuts the glass fiber cloth to obtain the reinforcing material 151 , the flange material 152 and the shell material 33 .

[0069] Specifically, two groups of winding machines 2 unwind multiple layers of glass fiber cloth, one group of cutting machines 3 cuts the glass fiber cloth to obtain shell material 33 , and the other group of cutting machines 3 cuts the glass fiber cloth to obtain reinforcing material 151 and flange material 152 .

[0070] In step S2, the shell material 33 is transferred to the heating machine 6, and the heating machine 6 heats the shell material 33 to 180-200°C; the reinforcing material 151 is transferred to the first material trough 123 at the four corners of the side of the first mold 12 of the reinforcing device 1, and the heating part 124 in the first material trough 123 heats the reinforcing material 151 to 180-200°C.

[0071] Step S2 further comprises:

[0072] In step S21 , the shell material 33 is transferred to the loading platform 5 and positioned.

[0073] Specifically, the second loading assembly 4 fixes the shell material 33 by needle punching and is transferred from the second platform 31 to the third platform 51 , and the shell material 33 is positioned by making the side surface of the shell material 33 abut against the positioning mechanism 52 of the loading platform 5 .

[0074] In step S22 , the shell material 33 is transferred from the loading platform 5 to the heating machine 6 .

[0075] Specifically, the two groups of third horizontal moving mechanisms 82 of the third loading assembly 8 are respectively threadedly moved along the guide rail 81 to the front and rear sides of the shell material 33, the third slider of the third vertical moving mechanism 83 is lowered, driving the rod body 84 and the first clamping jaw to descend, the first clamping jaw clamps the front and rear sides of the shell material 33 and slightly moves the third horizontal moving mechanism 82 to tighten the shell material 33. The third slider of the third vertical moving mechanism 83 rises, driving the rod body 84, the first clamping jaw and the shell material 33 to rise, the two groups of third horizontal moving mechanisms 82 are respectively threadedly moved along the guide rail 81 to the fourth platform 63, the third slider of the third vertical moving mechanism 83 is lowered, driving the rod body 84 and the first clamping jaw to descend, the shell material 33 is lowered to the surface of the second heating plate 64, the first clamping jaw is released, and the transfer of the shell material 33 is completed.

[0076] In step S23, the heating machine 6 heats the shell material 33 to 180-200°C.

[0077] Specifically, the first heating plate 62 descends and heats the shell material 33 together with the second heating plate 64, so that the sticky surface of the shell material 33 melts and softens the glass fiber cloth.

[0078] In step S3, the flange material 152 and the shell material 33 are sequentially transferred to the preforming press 7, and the preforming press 7 presses the shell material 33 and the flange edge 102 together to obtain a prefabricated material.

[0079] Specifically, the first loading assembly 13 punctures the fixed flange material 152 and is transferred from the material area 15 to the lower mold 74 corresponding to the first seat 121 .

[0080] The second vertical moving mechanism 65 drives the fourth slider to rise, and the fourth slider drives the third frame 66 and the steel wire 67 to rise. The steel wire 67 lifts the shell material 33 to rise, and the first clamp clamps the front and rear sides of the shell material 33. The two groups of third horizontal moving mechanisms 82 respectively move along the guide rail 81 to the workbench 73, and the third slider of the third vertical moving mechanism 83 descends, driving the rod body 84 and the first clamp to descend. The shell material 33 descends to the lower mold 74 corresponding to the first tire mold 122, and the first clamp is released to complete the transfer of the shell material 33.

[0081] The upper mold 72 descends and closes with the lower mold 74, and the shell material 33 and the flange material 152 are pressed into prefabricated materials depending on the temperature of the shell material 33.

[0082] In step S4 , the pressing assembly 14 presses the prefabricated material and the reinforcing material 151 together to obtain a reinforced battery shell 10 .

[0083] Specifically, the first loading assembly 13 fixes the preform by needle punching and transfers it from the lower mold 74 to the first seat 121 .

[0084] The second slider of the first horizontal moving mechanism 142 drives the pressing head 143 to move toward the first material trough 123 , and together with the first material trough 123 , presses the preform and the flange 102 to form the battery shell 10 .

[0085] In this embodiment, two groups of winding machines 2 and cutting machines 3 respectively cut the glass fiber cloth to obtain the shell material 33 and the reinforcing material 151 and the flange material 152. Next, the heating unit 124 heats the reinforcing material 151, the heating machine 6 heats the shell material 33, and the flange material 152 and the shell material 33 are sequentially loaded in the preforming press 7 and pre-pressed to form the prefabricated material. Finally, the prefabricated material and the reinforcing material 151 are pressed together into a reinforced battery shell 10. The battery shell molding process of the present invention simultaneously cuts the shell material 33, the reinforcing material 151 and the flange material 152, and then simultaneously molds the prefabricated material and heats the reinforcing material 151, and finally molds the reinforced battery shell 10, and the production rhythm is controllable and efficient and fast, and the production efficiency is high.

[0086] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0087] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A reinforcement device, characterized in that: The reinforcing device (1) comprises: The first fetal device (12) comprises: The first pedestal (121); A first mold (122) is disposed on the upper end of the first pedestal (121), and has chamfers on four sides of the upper surface and four sides of the side surfaces; A first material trough (123) is provided at four corners of the side surface of the first tire mold (122) along the thickness direction; A heating unit (124) and a needling mechanism (125) are arranged in the first tire mold (122) at a position corresponding to the first material trough (123); A first loading assembly (13) is arranged on a side of the first mold (12); A pressing assembly (14) is arranged at four corners of the side of the first mold (12), and has a pressing head (143) that is telescopic toward the first material trough (123), and the inner shape of the pressing head (143) matches the shape of the first material trough (123); The first loading component (13) grabs the upper end of the sticky surface of the reinforcing material (151) and transfers it into the first material trough (123); the depth of the first material trough (123) is less than the thickness of the reinforcing material (151); the puncture mechanism (125) punctures and fixes the non-sticky surface of the reinforcing material (151); the heating part (124) heats the reinforcing material (151); the prefabricated material is placed on the first pedestal (121) and sleeved on the outside of the first tire mold (122); the pressing head (143) extends to press the reinforcing material (151) and the prefabricated material together to obtain a reinforced battery shell (10).

2. The reinforcement device according to claim 1, characterized in that: The reinforcing device (1) comprises: A material area (15), on which a reinforcing material (151) is placed, wherein a first surface of the reinforcing material (151) is an adhesive surface, and a second surface is a non-adhesive surface; the reinforcing material (151) is a rounded rectangular shape; The battery case (10) comprises: The shell part (101) is a rectangular parallelepiped with an opening facing downward, and the four sides of the upper end and the four sides of the side surfaces are chamfered, and is matched with the first mold (122); A flange edge (102) is arranged at the lower end of the side edge of the shell portion (101) and is a rounded rectangular frame, and is matched with the first pedestal (121); The prefabricated material has the same shape as the battery shell (10), and has gaps at the four corners of the side surface.

3. The reinforcement device according to claim 2, characterized in that: The first loading component (13) comprises: A first three-axis transfer machine (131) has a first frame (132) that is rotatable and movable along the X-axis, the Y-axis and the Z-axis; The first acupuncture clamps (133) have at least four pieces, are located corresponding to the first material trough (123), are arranged at the lower end of the first frame (132), and have cross-retractable needles; A first visual camera (134) is disposed at the lower end of the first frame (132).

4. The reinforcement device according to claim 1, characterized in that: The pressing assembly (14) comprises: A first vertical moving mechanism (141) having a first sliding block movable along the Y axis; A first horizontal moving mechanism (142) connected to the first sliding block and having a second sliding block moving toward the first material trough (123); A pressure head (143) is connected to the second sliding block.

5. The reinforcement device according to claim 1, characterized in that: The reinforcing device (1) comprises: A base (11) is disposed on the ground; Wherein, the first seat (121) is arranged on the upper end of the base (11).

6. Battery shell production line, characterized in that: The battery shell production line comprises: A reel (2) for unwinding the fiberglass cloth; A cutting machine (3) is arranged at the rear end of the winding machine (2), receives the glass fiber cloth unwound by the winding machine (2) and cuts it to obtain reinforcing material (151), flange material (152) and shell material (33), wherein the first surface of the reinforcing material (151) and the flange material (152) is a sticky surface and the second surface is a non-sticky surface, and the first surface of the shell material (33) is a non-sticky surface and the second surface is a sticky surface; A heating machine (6), arranged at the rear end of the cutting machine (3), for heating the shell material (33); A preforming press (7), arranged at the rear end of the heating machine (6), presses the shell material (33) and the flange material (152) together to form a preform; A third feeding assembly (8) is erected on the ground, passes through the heating machine (6) and the preforming press (7), and is configured to transfer the shell material (33) from the heating machine (6) to the preforming press (7); a reinforcement device (1), as described in any one of claims 1 to 5, is arranged at the rear end of the preforming press (7), heats the reinforcement material (151), and presses the reinforcement material (151) together with the preform, wherein the first feeding assembly (13) is also configured to transfer the preform from the preforming press (7) to the first mold (12).

7. The battery shell production line according to claim 6, characterized in that: The coiling machine (2) further comprises: First platform (21); An upper roll rack (22) is arranged on the upper end of the first platform (21); A roller body (23) is rotatably arranged between the upper roll racks (22); A glass fiber cloth roll (24) is sleeved on the roller body (23); The cutting machine (3) further comprises: A second platform (31) is connected to the rear end of the first platform (21), a conveyor belt is arranged at the upper end, and the unrolled glass fiber cloth is conveyed by the conveyor belt; A laser cutting machine (32) is arranged on the upper end of the second platform (31); The heating machine (6) further comprises: A first frame (61) is arranged at the rear end of the second platform (31); A first heating plate (62) is slidably disposed in the first frame (61); a fourth platform (63), arranged in the first frame (61), and located corresponding to the rear end of the second platform (31); A second heating plate (64) is disposed on the surface of the fourth platform (63); The first heating plate (62) descends and heats the shell material (33) together with the second heating plate (64); The preforming press (7) also includes: A second frame (71) is arranged at the rear end of the first frame (61); A workbench (73) is arranged at the lower end of the second frame (71); A lower mold (74) is arranged on the surface of the workbench (73) and has the same shape as the combination of the first base (121) and the first mold (122); An upper mold (72) is slidably disposed in the second frame (71) and cooperates with the lower mold (74); The upper mold (72) descends and closes with the lower mold (74) to press the shell material (33) and the flange material (152) into prefabricated materials; The third feeding assembly (8) further comprises: Two guide rails (81) are symmetrically arranged on the ground and pass through both sides of the fourth platform (63) and the workbench (73); A third horizontal moving mechanism (82) has two groups, each group has two members, and is symmetrically slidably arranged on the guide rail (81); A third vertical moving mechanism (83), arranged at the upper end of the third horizontal moving mechanism (82), having a third sliding block movable along the Y axis; A rod body (84) connected between the two third sliding blocks arranged in parallel; The first clamping jaw is arranged on the rod body (84).

8. The battery shell production line according to claim 7, characterized in that: The battery shell production line further comprises a loading platform (5) and a second loading assembly (4), wherein the loading platform (5) comprises: The third platform (51) is arranged between the second platform (31) and the fourth platform (63), and the first grooves (511) are formed on the upper surface at four corners corresponding to the shell material (33); A positioning mechanism (52) is arranged on the surface of the third platform (51) and abuts against the side surface of the shell material (33); The second loading assembly (4) is disposed between the cutting machine (3) and the loading platform (5), and is configured to transfer the shell material (33) from the second platform (31) to the third platform (51); The guide rail (81) passes through both sides of the third platform (51), and the moving path of the first clamping jaw passes above the third platform (51).

9. The battery shell production line according to claim 7, characterized in that: The winding machine (2) and the cutting machine (3) are provided in two groups, wherein one group of the winding machine (2) and the cutting machine (3) is arranged at the front end of the heating machine (6) and the cutting machine (3) cuts the shell material (33), and the other group of the winding machine (2) and the cutting machine (3) is arranged at the side of the material area (15) and the cutting machine (3) cuts the flange material (152) and the reinforcing material (151); The battery shell production line further comprises a fourth loading assembly (9), which is arranged on the side of the material area (15) and is configured to transfer the flange material (152) and the reinforcing material (151) from the second platform (31) to the material area (15); Wherein, the first loading component (13) grabs the flange material (152) from the material area (15) and transfers it to the lower mold (74).

10. A battery shell forming process, characterized in that: The following steps are involved: Step S1, the reel (2) unwinds the glass fiber cloth, and the cutting machine cuts the glass fiber cloth to obtain the reinforcing material (151), the flange material (152) and the shell material (33); Step S2, the shell material (33) is transferred to a heating machine (6), and the heating machine (6) heats the shell material (33) to 180-200° C.; the reinforcing material (151) is transferred to a first material trough (123) at the four corners of the side of the first mold (12) of the reinforcing device (1), and the heating part (124) in the first material trough (123) heats the reinforcing material (151) to 180-200° C.; Step S3, the flange material (152) and the shell material (33) are sequentially transferred to a preforming press (7), and the preforming press (7) presses the shell material (33) and the flange edge (102) together to obtain a prefabricated material; Step S4: The pressing assembly (14) presses the prefabricated material and the reinforcing material (151) together to obtain a reinforced battery shell (10).

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