Easily-demolded mold for processing battery shell

Abstract

The utility model relates to the technical field of moulds, in particular to an easy-to-demould mould for processing a battery shell, which comprises a bottom mould and a top mould capable of being clamped with the bottom mould, a battery shell is arranged between the bottom mould and the top mould, a demoulding mechanism is arranged in the bottom mould, and limiting mechanisms are arranged on two sides of the bottom mould. The demolding mechanism comprises an inner fixing fence and an installation frame, the inner fixing fence and the bottom mold are fixedly installed, and multiple sets of first air channels distributed at equal intervals are formed in the periphery of the inner fixing fence. By means of the arranged demolding mechanism, the first clamping plate and the second clamping plate are separated from the inner fixing fence, the first air channel and the second air channel are exposed, a connecting opening in the bottom mold is connected with an air compressor, high-pressure gas is injected into the bottom mold, and the bottom mold and a product are separated by making the high-pressure gas flow through the first air channel and the second air channel; the friction force between the mold and a product is greatly reduced, so that the surface smoothness and the shape precision of the battery shell are protected.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, and specifically relates to a mold for processing a battery shell that is easy to demold. Background Art

[0002] Injection molding, also known as injection mold molding, is a molding method that combines injection and molding. The advantages of the injection molding method are fast production speed, high efficiency, automation of operation, a variety of flower patterns and colors, the shape can range from simple to complex, the size can range from large to small, and the product size is accurate, the product is easy to update, and it can form parts with complex shapes. Injection molding is suitable for molding processing fields such as mass production and products with complex shapes. For example, injection molds are often required in the production process of battery shells.

[0003] In the prior art, after the battery shell is injection molded, the mold and the internal product need to be cooled, and then the staff needs to manually demold it. Not only is the efficiency low, but also during the injection process of the battery shell, the raw material is injected into the mold cavity under high pressure, and the adhesion between the product and the mold cavity is large. During the manual demolding process, it is easy to cause friction between the product and the mold cavity surface due to strong pulling, resulting in the surface finish and accuracy of the product being affected. Content of the Utility Model

[0004] (1) Technical Problems to be Solved

[0005] In view of the deficiencies of the prior art, the utility model provides a mold for processing a battery shell that is easy to demold, and solves the problems raised in the above background art.

[0006] (2) Technical Solutions

[0007] To achieve the above object, the utility model provides the following technical solutions: A mold for processing a battery shell that is easy to demold, including a bottom mold, and a top mold that can be engaged with the bottom mold. A battery shell is provided between the bottom mold and the top mold. A demolding mechanism is provided in the bottom mold, and limiting mechanisms are provided on both sides of the bottom mold;

[0008] The demolding mechanism includes an inner fixing bar and a mounting frame. The inner fixing bar is fixedly installed on the bottom mold. A plurality of groups of equally spaced first air ducts are opened around the inner fixing bar, and a second air duct is opened at the bottom of the inner fixing bar. Four symmetrically distributed first clamping plates are provided on the mounting frame, and a second clamping plate is provided on the mounting frame.

[0009] Preferably, the first clamping plate is correspondingly arranged with the first air duct, and the first clamping plate is slidably connected to the inner fixing bar through the first air duct. The second clamping plate is correspondingly arranged with the second air duct, and the second clamping plate is movably clamped to the inner fixing bar through the second air duct.

[0010] Preferably, two sets of symmetrically distributed moving blocks are provided at both ends of the mounting frame, and the mounting frame is slidably connected to the bottom mold through the moving blocks. Two sets of symmetrically distributed lead screws are provided inside the mounting frame, and both ends of the lead screws respectively penetrate through the bottom mold and are rotatably connected to the bottom mold. The lead screws penetrate through the corresponding moving blocks and are threadedly connected to the moving blocks. A synchronous belt is provided inside the bottom mold, synchronous wheels are sleeved on both lead screws, and the synchronous belt is respectively in transmission connection with the two synchronous wheels.

[0011] Preferably, two sets of vertically distributed rotating rods are provided inside the mounting frame, and both ends of the rotating rods respectively penetrate through the mounting frame and are rotatably connected to the mounting frame. Two sets of oppositely arranged threads are provided at both ends of each set of rotating rods, and the four first clamping plates are all slidably connected to the mounting frame through sliders. Each set of rotating rods respectively penetrate through the sliders on the two relatively arranged first clamping plates and are threadedly connected to the sliders.

[0012] Preferably, the limiting mechanism includes two sets of symmetrically distributed limiting plates. The two fiber plates are both rotatably connected to the bottom mold through mounting shafts, and gears are sleeved on the mounting shafts.

[0013] Preferably, a rack is provided inside the bottom mold, and the rack is slidably connected to the bottom mold. The rack is meshed with the gear. A cylinder corresponding to the rack is provided inside the bottom mold, and the rack is connected to the output end of the piston rod of the cylinder.

[0014] (III) Beneficial effects

[0015] Compared with the prior art, the present utility model provides a mold for processing a battery shell that is easy to demold, and has the following beneficial effects:

[0016] Through the provided demolding mechanism, after the battery shell is injection molded in the bottom mold and the top mold, the first clamping plate and the second clamping plate are respectively separated from the inner fixing bar, the first air duct and the second air duct are exposed, and the connection port on the bottom mold is connected to an air compressor, and high-pressure gas is injected into the bottom mold. By using the high-pressure gas flowing through the first air duct and the second air duct, the bottom mold and the product are separated. In this process, due to the pressure and flow of the gas, an air cushion will be formed between the bottom mold and the product, so that the product can be easily separated from the mold, greatly reducing the friction between the mold and the product, thereby protecting the surface finish and shape accuracy of the battery shell. And the position of the battery shell is limited by the provided limiting mechanism, avoiding the battery shell being flushed out of the bottom mold under the action of high-pressure gas and causing collision damage. Description of the drawings

[0017] The drawings described herein are used to provide a further understanding of the present application, and constitute a part of the present application. The schematic embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation to the present application. In the drawings:

[0018] Figure 1Schematic diagram of the overall structure of the present utility model;

[0019] Figure 2 Schematic diagram of the structure of the bottom mold of the present utility model;

[0020] Figure 3 Schematic diagram of the structure of the demolding mechanism of the present utility model;

[0021] Figure 4 For the present utility model Figure 3 Enlarged schematic diagram of the structure at position A;

[0022] Figure 5 Schematic diagram of the structure of the first clamping plate of the present utility model;

[0023] Figure 6 Schematic diagram of the structure of the limiting mechanism of the present utility model;

[0024] Figure 7 For the present utility model Figure 6 Enlarged schematic diagram of the structure at position B.

[0025] In the figure: 1. Bottom mold; 2. Top mold; 3. Battery housing; 4. Demolding mechanism; 401. Inner fixing bar; 402. First air duct; 403. Second air duct; 404. First clamping plate; 405. Second clamping plate; 406. Mounting frame; 407. Moving block; 408. Lead screw; 409. Synchronous pulley; 410. Synchronous belt; 411. Slide block; 412. Rotating rod; 413. Thread; 5. Limiting mechanism; 501. Limiting plate; 502. Mounting shaft; 503. Gear; 504. Rack; 505. Cylinder. Specific embodiments

[0026] The following will cooperate with the drawings and embodiments to detail the implementation manners of the present application, so as to fully understand how the present application uses technical means to solve technical problems and achieve the realization process of technical effects and implement accordingly.

[0027] Figures 1 - 7This is an embodiment of the present utility model, a mold for processing a battery case with easy demolding, including a bottom mold 1 and a top mold 2 that can be engaged with the bottom mold 1. A battery case 3 is provided between the bottom mold 1 and the top mold 2. A demolding mechanism 4 is provided inside the bottom mold 1, and a limiting mechanism 5 is provided on both sides of the bottom mold 1; the demolding mechanism 4 includes an inner fixing bar 401 and a mounting frame 406. The inner fixing bar 401 is fixedly installed with the bottom mold 1. A plurality of groups of equally spaced first air ducts 402 are opened around the inner fixing bar 401, and a second air duct 403 is opened at the bottom of the inner fixing bar 401. Four symmetrically distributed first clamping plates 404 are provided on the mounting frame 406, and a second clamping plate 405 is provided on the mounting frame 406. Through the provided demolding mechanism 4, after the battery case 3 in the bottom mold 1 and the top mold 2 is injection-molded, the first clamping plate 404 and the second clamping plate 405 are separated from the inner fixing bar 401 respectively, the first air duct 402 and the second air duct 403 are exposed, and the connection port on the bottom mold 1 is connected to an air compressor to inject high-pressure gas into the bottom mold 1.

[0028] In this embodiment, refer to Figure 2 , Figure 3 , Figure 4 and Figure 5As shown in the figure, the first clamping plate 404 is correspondingly arranged with the first air duct 402, and the first clamping plate 404 is slidably connected to the inner fixing bar 401 through the first air duct 402. The second clamping plate 405 is correspondingly arranged with the second air duct 403, and the second clamping plate 405 is movably clamped to the inner fixing bar 401 through the second air duct 403. Two groups of symmetrically distributed moving blocks 407 are provided at both ends of the mounting frame 406, and the mounting frame 406 is slidably connected to the bottom mold 1 through the moving blocks 407. Two groups of symmetrically distributed lead screws 408 are arranged inside the mounting frame 406, and both ends of the lead screw 408 respectively penetrate through the bottom mold 1 and are rotatably connected to the bottom mold 1. The lead screw 408 penetrates through the corresponding moving block 407 and is threadedly connected to the moving block 407. A synchronous belt 410 is arranged inside the bottom mold 1. Synchronous wheels 409 are sleeved on both lead screws 408, and the synchronous belt 410 is respectively drivingly connected to the two synchronous wheels 409. Two groups of vertically distributed rotating rods 412 are arranged inside the mounting frame 406, and both ends of the rotating rod 412 respectively penetrate through the mounting frame 406 and are rotatably connected to the mounting frame 406. Two groups of threads 413 with opposite directions are provided at both ends of each rotating rod 412. The four first clamping plates 404 are all slidably connected to the mounting frame 406 through sliders 411. Each rotating rod 412 respectively penetrates through the sliders 411 on the two relatively arranged first clamping plates 404 and is threadedly connected to the sliders 411. The bottom mold 1 is connected to an air compressor through the connection port on the bottom mold 1. After the inner battery housing 3 is injection-molded, the top mold 2 is separated from the bottom mold 1. Subsequently, the rotating rod 412 is driven to rotate by a motor, so that the two groups of threads 413 with opposite directions on the rotating rod 412 rotate synchronously. Under the limiting action of the mounting frame 406, the slider 411 drives the first clamping plate 404 to move to both sides, separating from the inner fixing bar 401, and the first air duct 402 is exposed. And the motor inside the bottom mold 1 is synchronously started to drive the lead screw 408 to rotate. Under the limiting action of the bottom mold 1, the moving block 407 drives the mounting frame 406 to move, driving the first clamping plate 404 and the second clamping plate 405 to move leftward synchronously, disengaging from the inner fixing bar 401, and the first air duct 402 and the second air duct 403 are exposed.

[0029] In this embodiment, referring to Figure 6 and Figure 7 As shown in the figure, the limiting mechanism 5 includes two groups of symmetrically distributed limiting plates 501. The two fiber plates are both rotatably connected to the bottom mold 1 through the mounting shaft 502, and gears 503 are sleeved on the mounting shaft 502. A rack 504 is arranged inside the bottom mold 1, and the rack 504 is slidably connected to the bottom mold 1. The rack 504 is meshed with the gear 503. A cylinder 505 corresponding to the rack 504 is arranged inside the bottom mold 1, and the rack 504 is connected to the output end of the piston rod of the cylinder 505. The cylinder 505 is started to drive the rack 504 to slide, cooperating with the rotation of the gear 503, driving the mounting shaft 502 and the limiting plate 501 to rotate by ninety degrees, lying across a certain distance at the outlet of the bottom mold 1 to prevent the battery housing 3 from falling when the battery housing 3 is ejected.

[0030] When this embodiment works, the bottom mold 1 is connected to an air compressor through the connection port on the bottom mold 1. After the internal battery housing 3 is injection-molded, the top mold 2 is separated from the bottom mold 1. Subsequently, the motor drives the rotating rod 412 to rotate, so that the two sets of threads 413 arranged in the reverse direction on the rotating rod 412 rotate synchronously. Under the limiting action of the mounting frame 406, the slider 411 drives the first engaging plate 404 to move to both sides, separating from the inner fixing bar 401, and exposing the first air duct 402. At the same time, the motor in the bottom mold 1 is started to drive the lead screw 408 to rotate. Under the limiting action of the bottom mold 1, the moving block 407 drives the mounting frame 406 to move, driving the first engaging plate 404 and the second engaging plate 405 to move leftward synchronously, disengaging from the inner fixing bar 401, and exposing the first air duct 402 and the second air duct 403. Subsequently, the air cylinder 505 is started to drive the rack 504 to slide, cooperating with the rotation of the gear 503, driving the mounting shaft 502 and the limiting plate 501 to rotate 90 degrees and lying across a certain distance from the outlet of the bottom mold 1. By injecting high-pressure gas into the bottom mold 1, the bottom mold 1 and the product are separated by using the high-pressure gas flowing through the first air duct 402 and the second air duct 403. In this process, due to the pressure and flow of the gas, an air cushion will be formed between the bottom mold 1 and the product, enabling the product to easily disengage from the mold, greatly reducing the friction between the mold and the product, and thus protecting the surface finish and shape accuracy of the battery housing 3.

[0031] The control mode of the present utility model is automatically controlled by a controller. The control circuit of the controller can be realized by simple programming by those skilled in the art. The provision of power also belongs to the common knowledge in the art. And the present utility model is mainly used to protect mechanical devices, so the control mode and circuit connection of the present utility model will not be explained in detail.

[0032] It should be noted that the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements but also includes other elements not explicitly listed, or further includes elements inherent to such process, method, article or device.

[0033] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A mold for processing a battery casing that is easy to demould, comprising a bottom mold (1) and a top mold (2) that can be engaged with the bottom mold (1), characterized in that: A battery housing (3) is provided between the bottom mold (1) and the top mold (2), a demoulding mechanism (4) is provided inside the bottom mold (1), and limiting mechanisms (5) are provided on both sides of the bottom mold (1); The demoulding mechanism (4) comprises an inner fixing bar (401) and a mounting frame (406); the inner fixing bar (401) is fixedly mounted on the bottom mold (1); a plurality of groups of first air ducts (402) distributed at equal intervals are provided around the inner fixing bar (401); a second air duct (403) is provided at the bottom of the inner fixing bar (401); four groups of first clamping plates (404) distributed symmetrically are provided on the mounting frame (406); and a second clamping plate (405) is provided on the mounting frame (406).

2. The mold for processing a battery shell that is easy to demould according to claim 1, characterized in that: The first engaging plate (404) is arranged corresponding to the first air duct (402), and the first engaging plate (404) is slidably connected to the inner fixing bar (401) through the first air duct (402), and the second engaging plate (405) is arranged corresponding to the second air duct (403), and the second engaging plate (405) is movably engaged with the inner fixing bar (401) through the second air duct (403).

3. The mold for processing a battery shell that is easy to demould according to claim 1, characterized in that: Two groups of symmetrically distributed moving blocks (407) are provided at both ends of the mounting frame (406), and the mounting frame (406) is slidably connected to the bottom mold (1) through the moving blocks (407). Two groups of symmetrically distributed screw rods (408) are provided in the mounting frame (406), and the two ends of the screw rods (408) respectively penetrate the bottom mold (1) and are rotatably connected to the bottom mold (1), the screw rods (408) penetrate the corresponding moving blocks (407) and are threadedly connected to the moving blocks (407), a synchronous belt (410) is provided in the bottom mold (1), and synchronous wheels (409) are sleeved on the two groups of screw rods (408), and the synchronous belts (410) are respectively drivingly connected to the two groups of synchronous wheels (409).

4. The mold for processing a battery shell that is easy to demould according to claim 1, characterized in that: Two groups of vertically distributed rotating rods (412) are provided in the mounting frame (406), and both ends of the rotating rods (412) respectively penetrate the mounting frame (406) and are rotatably connected to the mounting frame (406), and both ends of each group of rotating rods (412) are provided with two groups of oppositely arranged threads (413), and the four groups of first engaging plates (404) are slidably connected to the mounting frame (406) via sliders (411), and each group of rotating rods (412) respectively penetrates the sliders (411) on the two oppositely arranged groups of first engaging plates (404) and is threadedly connected to the sliders (411).

5. The mold for processing a battery shell that is easy to demould according to claim 1, characterized in that: The limiting mechanism (5) comprises two groups of symmetrically distributed limiting plates (501), and both groups of fiber plates are rotatably connected to the bottom mold (1) via a mounting shaft (502), and a gear (503) is sleeved on the mounting shaft (502).

6. The mold for processing a battery shell that is easy to demould according to claim 1, characterized in that: A rack (504) is provided in the bottom mold (1), and the rack (504) is slidably connected to the bottom mold (1), the rack (504) is meshingly connected to the gear (503), and a cylinder (505) corresponding to the rack (504) is provided in the bottom mold (1), and the rack (504) is connected to the output end of the piston rod of the cylinder (505).

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