Easy-to-release mold for battery pack shell

Abstract

The utility model discloses an easy demoulding mould of battery pack shell, including upper mould block and lower mould block, upper mould block and lower mould block fold to form mould cavity, below the lower mould block is provided with the top plate, the top plate is provided with a plurality of push rod, the push rod is provided with the axial slide hole and air hole, and the slide hole is the through hole, and the air hole is the through hole. An air supply channel communicated with an air hole is formed in the top plate, the end of the air hole is communicated with a sliding hole, a sealing rod slides in the sliding hole, a driving plate is slidably connected to the lower portion of the top plate, the driving plate is connected with the sealing rod, the driving plate drives the sealing rod to ascend and descend when sliding, and a lifting device is connected to the top plate. And a gas channel communicated with the mold cavity of the upper mold block is arranged in the upper mold block, so that a product is more easily ejected out, rapid demolding is realized, and the demolding quality of the product is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to mould technical field, more specifically relates to a battery package shell's easy -to -release mould. BACKGROUND

[0002] The battery package shell is generally formed by the plastic material of flame retardant injection molding, and the product is ejected by the ejector rod of the lower module after cooling and forming in the mold cavity. However, the surface of the shell is easily damaged when the conventional ejection mechanism is ejected due to the complex shape of the battery package shell, resulting in low product yield. The specific reason is that the complex shape increases the adsorption between the product surface and the mold cavity surface, and the negative pressure between the product surface and the mold cavity surface needs to be overcome when the product is ejected, thereby causing the ejector rod to damage the product surface. SUMMARY

[0003] In view of the deficiencies of the prior art, the utility model provides an easy-to-release mould for a battery package shell to improve the release quality of the product.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: an easy-to-release mould for a battery package shell, comprising an upper module and a lower module, the upper module and the lower module are folded to form a mold cavity, a top plate is arranged below the lower module, a plurality of ejector rods are arranged on the top plate, axial sliding holes and air holes are arranged in the ejector rods, and the sliding holes are through holes, a gas supply channel communicating with the air holes is arranged in the top plate, the end of the air hole communicates with the sliding hole, a sealing rod slides in the sliding hole, a driving plate is slidably connected below the top plate, the driving plate is connected with the sealing rod, the driving plate drives the sealing rod to rise and fall when sliding, a lifting device is connected to the top plate, and a gas channel communicating with the mold cavity of the upper module is arranged in the upper module.

[0005] Further, a groove corresponding to the sealing rod is arranged on the driving plate, the bottom surface of the groove is an inclined surface, and the bottom end of the ejector rod is wedge-shapedly connected with the inclined surface.

[0006] Further, a T-shaped groove is arranged on the inclined surface, a connecting block is arranged at the bottom end of the ejector rod, a T-shaped block corresponding to the T-shaped groove is arranged on the connecting block, and the T-shaped block slides in the T-shaped groove.

[0007] Further, a gas cylinder is arranged on the top plate, and the piston rod of the gas cylinder is connected with the driving plate.

[0008] Further, a pull rod is arranged on the top plate, the pull rod passes through the lower module and the upper module, and a baffle is arranged on the end portion passing through, and the pull rod is slidably connected with the lower module and the upper module.

[0009] Compared with the prior art, the beneficial effects of this utility model are: by blowing air onto the surface of the battery pack shell and the mold cavity surface before demolding, a small gap is created, which makes it easier to eject the product when the ejector rod pushes it out, thus achieving rapid demolding and improving the demolding quality of the product. Attached Figure Description

[0010] Figure 1 This is a structural schematic diagram of the battery pack shell of this utility model in an easy-to-demold state;

[0011] Figure 2 This is a schematic diagram of the structure of the battery pack shell of this utility model in the second easy-to-demold state;

[0012] Figure 3 This is a structural schematic diagram of the battery pack shell of this utility model under three easy-to-demold conditions;

[0013] Figure 4 for Figure 1 Enlarged view of part A under mold condition;

[0014] Figure 5 This is an enlarged view of part A in mold state two;

[0015] Figure 6 This is an enlarged view of part A under mold condition three;

[0016] Figure 7 for Figure 1 Enlarged view of part B under mold condition;

[0017] Figure 8 for Figure 1 Enlarged views of part B in mold states two and three.

[0018] Reference numerals: Upper module 1; Lower module 2; Mold cavity 3; Top plate 4; Top rod 5; Sliding hole 6; Air hole 7; Sealing rod 8; Drive plate 9; Groove 10; Inclined surface 11; Connecting block 12; Cylinder 13; Pull rod 14; Baffle 15; Gas channel 16. Detailed Implementation

[0019] In the description of this utility model, it should be noted that the directional terms such as "center", "horizontal (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this utility model.

[0020] In addition, the terms "first", "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. Therefore, the definition of "first", "second" features can explicitly or implicitly include one or more features, and in the description of the utility model, the meaning of "several" is two or more than two, unless otherwise explicitly specified.

[0021] Referring to Figures 1 to 8 Further illustrate the utility model.

[0022] An easy-to-release mold of a battery pack shell, comprising an upper mold 1 and a lower mold 2, the upper mold 1 and the lower mold 2 are folded to form a mold cavity 3, a top plate 4 is arranged below the lower mold 2, a plurality of top rods 5 are arranged on the top plate 4, axial sliding holes 6 and air holes 7 are arranged in the top rods 5, the sliding holes 6 are through holes, a gas supply channel that communicates with the air holes 7 is arranged in the top plate 4, the end of the air hole 7 communicates with the sliding hole 6, a sealing rod 8 slides in the sliding hole 6, a driving plate 9 is slidably connected below the top plate 4, the driving plate 9 is connected with the sealing rod 8, the driving plate 9 drives the sealing rod 8 to rise and fall when sliding, a lifting device is connected to the top plate 4, and a gas channel 16 that communicates with the mold cavity 3 of the upper mold 1 is arranged in the upper mold 1.

[0023] As Figure 7 and Figure 8 shown, preferably in the present example, a groove 10 corresponding to the sealing rod 8 is arranged on the driving plate 9, the bottom surface of the groove 10 is an inclined surface 11, and the bottom end of the top rod 5 is wedge-shapedly connected with the inclined surface 11, that is, the translation of the driving plate 9 can make the sealing rod 8 move up and down in the top rod 5.

[0024] As Figure 7 and Figure 8 shown, preferably in the present example, a T-shaped groove is arranged on the inclined surface 11, a connecting block 12 is arranged at the bottom end of the top rod 5, a T-shaped block corresponding to the T-shaped groove is arranged on the connecting block 12, and the T-shaped block slides in the T-shaped groove, that is, the stability of the sealing rod 8 moving up and down is improved by the cooperation of the T-shaped groove and the T-shaped block.

[0025] As Figures 1 to 3 shown, preferably in the present example, a gas cylinder 13 is arranged on the top plate 4, and the piston rod of the gas cylinder 13 is connected with the driving plate 9, so that the driving plate 9 is moved by the gas cylinder 13.

[0026] As Figures 1 to 3 shown, preferably in the present example, a pull rod 14 is arranged on the top plate 4, the pull rod 14 passes through the lower mold 2 and the upper mold 1, and a baffle 15 is arranged on the end portion passing through, and the pull rod 14 is slidably connected with the lower mold 2 and the upper mold 1.

[0027] Specifically, the upper module 1 is connected with a hydraulic lifting device, the lower module 2 is provided with a guide rod, the guide rod passes through the upper module 1, and the upper module 1 is in sliding connection with the guide rod.

[0028] As shown in Figure 1 , the upper module 1 is lowered to be folded with the lower module 2 to perform injection molding of the battery pack shell, and as shown in Figure 4 , the end of the ejector rod 5 in the lower module 2 is flush with the bottom surface of the mold cavity 3, the end of the sealing rod 8 in the ejector rod 5 is flush with the bottom surface of the mold cavity 3, and the sealing rod 8 seals the connection between the air hole 7 and the sliding hole 6, and the connection state of the sealing rod 8 and the driving plate 9 is as shown in Figure 7 ;

[0029] As shown in Figure 2 , before the upper module 1 is raised, gas is introduced into the mold cavity 3 through the gas passage 16 in the upper module 1, so that a small gap is formed between the upper surface of the product and the mold cavity 3, and then the upper module 1 is raised to expose the upper surface of the product, at this time, the baffle 15 at the end of the pull rod 14 is in contact with the upper module 1; as shown in Figure 2 , the air cylinder 13 on the top plate 4 drives the driving plate 9 to move to one side, so that the connection state of the sealing rod 8 and the driving plate 9 is as shown in Figure 8 , so that the sealing rod 8 is lowered in the sliding hole 6 of the ejector rod 5 through the driving plate 9, so that the sliding hole 6 is communicated with the air hole 7, and as shown in Figure 5 , at this time, gas can be blown to the surface of the product and the surface of the mold cavity 3 through the air hole 7 and the sliding hole 6, so that a small gap is formed between the lower surface of the product and the surface of the mold cavity 3;

[0030] As shown in Figure 3 , the upper module 1 continues to rise, the top plate 4 is driven to move upward by the pull rod 14, the ejector rod 5 on the top plate 4 is stretched out of the mold cavity 3, and the product is ejected from the mold cavity 3 of the lower module 2, and as shown in Figure 6 ;

[0031] Until the product is taken out, all mechanisms are reset in turn, and the next production is started, and the product surface and the mold cavity 3 surface are blown before demolding, so that a small gap is generated, when the ejector rod 5 ejects the product, the product can be more easily ejected, the rapid demolding is realized, and the demolding quality is improved.

[0032] Specifically, of course, the gas passage 16 can also be directly arranged on the lower module 2 to blow gas like the upper module 1, but the gas passage 16 needs to be blocked during injection molding and needs to be opened before demolding, and the ejector rod 5 is arranged in the lower die seat, which makes the arrangement of the gas passage 16 in the lower module 2 very complex, therefore, the gas passage 16 is arranged on the upper module 1, and the mechanism for blowing gas is arranged in the ejector rod 5 on the lower module 2, so that the design cost is lower.

[0033] Specifically, since the liquid level of the molten material in the mold cavity 3 is from bottom to top, and the amount of injected molten material is controlled by the controller, the molten material will not enter the gas channel 16, and of course the sealing rod 8 can be extracted in the gas channel 16, and is extracted before demolding, and the design is relatively simple, and will not be described in detail in the embodiment.

[0034] The above only describes the preferred embodiments of the present application, and the protection scope of the present application is not limited to the above-mentioned embodiments. Any technical solution falling within the concept of the present application is within the protection scope of the present application. It should be noted that for ordinary technical personnel in the technical field, some improvements and decorations without departing from the principles of the present application are also considered as the protection scope of the present application.

Claims

1. A battery pack shell ejection aid characterized by: The application relates to a die set, which comprises an upper die set and a lower die set, the upper die set and the lower die set are folded to form a die cavity, a top plate is arranged below the lower die set, a plurality of top rods are arranged on the top plate, axial sliding holes and air holes are arranged in the top rods, the sliding holes are through holes, a gas supply channel for the air holes is arranged in the top plate, the end of the air hole is communicated with the sliding hole, a sealing rod is slidably arranged in the sliding hole, a driving plate is slidably connected below the top plate, the driving plate is connected with the sealing rod, the driving plate drives the sealing rod to ascend and descend when the driving plate slides, a lifting device is connected to the top plate, and a gas supply channel for the die cavity of the upper die set is arranged in the upper die set.

2. The battery pack shell ejection aid of claim 1, wherein: Grooves corresponding to the sealing rods are arranged on the driving plate, the bottom surface of the groove is an inclined surface, and the bottom end of the top rod is wedge-shapedly connected with the inclined surface.

3. The battery pack shell ejection aid of claim 2, wherein: A T-shaped groove is arranged on the inclined surface, a connecting block is arranged at the bottom end of the top rod, a T-shaped block corresponding to the T-shaped groove is arranged on the connecting block, and the T-shaped block is slidably arranged in the T-shaped groove.

4. The battery pack housing ejection mold according to claim 1, wherein: A gas cylinder is arranged on the top plate, and a piston rod of the gas cylinder is connected with the driving plate.

5. The battery pack enclosure draft tool of claim 1, wherein: A pull rod is arranged on the top plate, the pull rod penetrates through the lower die set and the upper die set, a baffle is arranged on the end penetrating through the lower die set and the upper die set, and the pull rod is slidably connected with the lower die set and the upper die set.

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