CN223972066U - Injection mold for battery shell production - Google Patents

Abstract

This utility model provides an injection mold for battery casing production, including an upper mold cavity and a lower mold cavity. The upper and lower mold cavities each have a mold core adapted to the shape of the part to be injection molded. An injection port is provided on the upper mold cavity, and an ejector assembly is provided at the lower part of the lower mold cavity. The ejector assembly includes an ejector rod located at the lower part of the lower mold cavity, penetrating the lower mold cavity. A sealing structure is provided between the upper part of the ejector rod and the lower mold cavity. A force-applying component is provided at the lower part of the ejector rod, which can push the injection-molded product upwards. This utility model can quickly and efficiently eject the injection-molded product from the lower mold cavity by pushing it upwards with the ejector rod, solving the problem that traditional injection molds typically rely on knocking or shaking to demold or separate the molded parts after production, which is inconvenient and inefficient.

Description

Injection mold for battery shell production

Technical Field

The utility model relates to the technical field of injection molding equipment, in particular to an injection mold for producing a battery shell.

Background

With the development of social economy and the increasing of the living standard of people, the plastic storage battery shell has the advantages of light weight, quick molding, low cost, good acid resistance and corrosion resistance and the like, is widely applied to various industries, and the outermost layer carrier of the storage battery is also adopted, and the plastic storage battery shell is taken as one of important components of the outer layer carrier, so that the quality of the plastic storage battery shell can be directly or indirectly influenced.

The prior injection mold is disclosed in China patent application with the name of 'an injection mold', and comprises a panel, a water gap push plate, a water gap plate, an A plate, a push plate, a fixed plate, a bottom plate, a first pull plate, a guide pillar, a first fixed screw, a second pull plate, a second fixed screw, a sprue, a water gap side, a large pull rod, a limit screw and a distance screw, wherein the panel is fixed on the fixed plate of the injection molding machine and always does not move, the bottom plate is fixed on a movable mold plate of the injection molding machine, moves along with the movable mold plate during mold opening and closing, the fixed plate and the bottom plate are fixed together by the first fixed screw, the water gap plate and the A plate are fixed together by the second fixed screw, the limit screw limits the mold opening distance between the water gap push plate and the panel, the large pull rod limits the mold opening distance between the A plate and the push plate, the push plate is pulled out of the storage battery, and the second pull plate is pushed out of the second pull plate, and the guide plate is fixed on the first guide plate, and the first guide plate is fixed on the side of the fixed plate, and the first guide plate is fixed on the side of the first guide plate.

By adopting the die, after injection molding, separation and release operation of the injection molded product and the die cavity can be realized in a vibration or knocking mode, the operation is troublesome, the efficiency is low, even unnecessary damage or deformation of the product can be caused, and the product quality is influenced.

Disclosure of utility model

In view of the above, the utility model provides an injection mold for producing battery cases, which can realize efficient and convenient demolding operation on finished products after injection molding through an ejection assembly, is more convenient and efficient, and greatly improves the quality of demolding products.

In order to solve the technical problems, the utility model provides an injection mold for producing a battery shell, which comprises an upper mold cavity and a lower mold cavity, wherein the upper mold cavity and the lower mold cavity are respectively provided with a mold core matched with a part to be injection molded, the mold core is matched with a finished product of the injection mold, an injection port is arranged on the upper mold cavity, the injection port is communicated with a discharge port of an injection molding machine through a pipeline, an ejection assembly is arranged at the lower part of the lower mold cavity, the ejection assembly comprises a push rod arranged at the lower part of the lower mold cavity, the push rod penetrates through the lower mold cavity, a sealing structure is arranged between the upper part of the push rod and the lower mold cavity, the sealing structure is made of fluororubber or polytetrafluoroethylene material, the size of the sealing structure is larger than the diameter of the push rod, a force application part is arranged at the lower part of the push rod, and the force application part can push the injection molded product upwards.

The force application part comprises a driving part, the driving part can push the ejector rod to jack up, the driving part can be an auxiliary workpiece with higher hardness such as a knocking hammer and a steel bar, and the like, and the ejector rod can be pushed up to the ejection lower die cavity of the product after injection molding is finished and shaped through the action of the driving part, so that the injection molding machine is more efficient, more rapid and more convenient.

The utility model can realize the separation of the heat of injection molding in the shaping process through the action of the heat insulation plate, and can realize the reciprocating impact ejection operation of the injection molding in the lower mold cavity upwards with the ejector rod under the reciprocating impact action of the restoring elastic force of the spring after the continuous compression of the spring, thereby greatly improving the mold stripping effect and efficiency.

The driving piece is a telescopic push rod, the lower parts of the plurality of push rods are provided with connecting plates, the end parts of the output rods of the telescopic push rods are positioned at the lower parts of the connecting plates, and the telescopic push rod is a hydraulic push rod.

The utility model can conveniently and rapidly realize the rapid combination and convenient separation operation of the upper die cavity and the lower die cavity through the action of the hanging rings, thereby greatly improving the portability of the assembly and the disassembly of the upper die and the lower die.

In summary, compared with the prior art, the application has at least one of the following beneficial technical effects:

1. According to the utility model, the ejection assembly arranged below the lower die cavity can move upwards under the action of the force application piece to realize efficient ejection operation of the injection molding shaping cooled workpiece in the lower die cavity, so that the operation is more convenient and efficient.

2. According to the utility model, heat of the injection molding piece in the shaping process can be blocked through the effect of the heat insulation plate, and the injection molding piece in the lower mold cavity can be subjected to reciprocating impact ejection operation with the ejector rod upwards under the reciprocating impact effect of the elastic force recovered by the spring after the spring is continuously compressed, so that the demolding effect and efficiency are greatly improved.

3. The lifting device can conveniently and quickly realize the operation of quickly combining and conveniently separating the upper die cavity and the lower die cavity by the lifting ring, and greatly improves the portability of assembling and disassembling the upper die and the lower die.

Drawings

Fig. 1 is a schematic structural view of an injection mold for battery case production according to the present utility model;

FIG. 2 is an enlarged view of the utility model at A in FIG. 1;

FIG. 3 is a side view of an injection mold for battery case production according to the present utility model;

FIG. 4 is a cross-sectional view taken at B-B in FIG. 3 in accordance with the present utility model.

The reference numerals indicate 100, an upper die cavity, 200, a lower die cavity, 300, an ejection assembly, 301, a push rod, 302, a force application piece, 303, a through groove, 304, a spring, 400 and a hanging ring.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to fig. 1 to 4 of the embodiments of the present utility model. It will be apparent that the described embodiments are some, but not all, embodiments of the utility model. All other embodiments, which are obtained by a person skilled in the art based on the described embodiments of the utility model, fall within the scope of protection of the utility model.

As shown in fig. 1-2, this embodiment provides an injection mold for producing a battery case, including an upper mold cavity 100 and a lower mold cavity 200, the upper mold cavity 100 and the lower mold cavity 200 are respectively provided with a mold core adapted to the shape of a part to be injection molded, the mold core is adapted to a finished product of the mold to be injection molded, the upper mold cavity 100 is provided with an injection port, the injection port is communicated with a discharge port of an injection molding machine through a pipeline, the lower part of the lower mold cavity 200 is provided with an ejection assembly 300, the ejection assembly 300 includes an ejector rod 301 arranged at the lower part of the lower mold cavity 200, the ejector rod 301 penetrates through the lower mold cavity 200, a sealing structure is arranged between the upper part of the ejector rod 301 and the lower mold cavity 200, the sealing structure is made of fluororubber or polytetrafluoroethylene material, the size of the sealing structure is larger than the diameter of the ejector rod 301, the lower part of the ejector rod 301 is provided with a force application member 302, and the force application member 302 can push the injection molded product to be lifted upwards.

The force application part 302 comprises a driving part, the driving part can push the ejector rod 301 upwards to jack up, the driving part can be an auxiliary workpiece with higher hardness such as a knocking hammer, a steel bar and the like for an operator, and the ejector rod 301 can be pushed upwards to the product after injection molding is finished to eject out of the lower die cavity 200 efficiently, quickly and stably under the action of the driving part, so that the ejector rod is more efficient and convenient.

According to another embodiment of the present utility model, as shown in fig. 1 and fig. 3, at least four ejector pins 301 are uniformly arranged below the lower die cavity 200, through slots 303 matched with the ejector pins 301 are formed in the lower die cavity 200, the number of the through slots 303 is the same as that of the ejector pins 301, a spring 304 is arranged in each through slot 303, a heat insulation board matched with the spring 304 is arranged on the ejector pins 301, the upper part of the spring 304 is positioned at the lower part of the heat insulation board, the spring 304 is sleeved outside the ejector pins 301, a pressing cylinder is arranged at the lower part of the spring 304, the ejector pins 301 are inserted in the pressing cylinder, a driving member is a telescopic push rod, a connecting plate is arranged at the lower part of the plurality of ejector pins 301, the output rod ends of the telescopic push rod are positioned at the lower part of the connecting plate, the telescopic push rod is a hydraulic push rod, the lower part of the pressing cylinder is fixedly arranged with the upper part of the connecting plate, the heat of the injection molding member in the setting process is blocked by the effect of the heat insulation board, the ejector pins 301 can be pushed down by the effect of the telescopic push rod and the upper part of the connecting plate to the upper part of the heat insulation board, the ejector pin can be pushed up to the lower part of the connecting plate and the product in the compression molding process, the product can be more conveniently and the compression effect of the ejector plate can be more conveniently carried out in the compression operation after the compression of the ejector pin is carried out in the compression cylinder after the compression molding process, and the compression of the compression molding plate is more than the compression molding plate is more convenient, and the compression of the compression plate is carried out in the compression of the compression molding process has the compression effect can be more has the compression effect to the compression effect in the compression effect and has the compression effect to the compression effect.

According to another embodiment of the present utility model, as shown in fig. 1 and 4, a plurality of hanging rings 400 are further provided at the outer sides of the upper mold cavity 100 and the lower mold cavity 200, and the present utility model can conveniently and rapidly implement the operation of rapidly combining and conveniently separating the upper mold cavity 100 and the lower mold cavity 200 by the hanging rings 400, thereby greatly improving the portability of assembling and disassembling the upper mold and the lower mold.

The application method of the utility model comprises the following steps:

Firstly, it should be clear that the injection mold related to the utility model is mainly used for manufacturing operations of plastic workpieces, especially injection molding operations in a shell body, the utility model takes the demolding operation of a battery shell in the injection molding production process as an example to elaborate the use method of the injection mold, after the injection molding is completed, after the product is cooled and shaped, the fastening bolts between the upper mold cavity 100 and the lower mold cavity 200 are firstly removed one by one, then an operator hangs a hanging belt on the hanging ring 400 of the upper mold cavity 100 by means of a crane and a hanging belt, then the operator starts the crane to lift the upper mold cavity 100 to a safe height, then the operator starts the output rod of a telescopic push rod to stretch out, the connecting plate and the ejector rod 301 on the connecting plate can be pushed upwards to push the product shaped in the lower mold cavity 200 by the stretching effect of the output rod of the telescopic push rod to jack, in this process, the compressed spring 304 can be compressed, the compressed spring 304 can be pushed upwards to push the heat insulation disc and the ejector rod 301 upwards to reciprocate and eject the finished product shaped in the lower mold cavity 200, the operation is more convenient, the injection molding operation is realized, the high-efficient and convenient demolding operation is realized by the ejector component 300, the high-quality demolding operation is realized, and the product is more convenient to be ejected and high-efficient and convenient.

In addition, it should be noted that, in the description of the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected through an intermediate medium, or in communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those skilled in the art according to the specific circumstances.

While the foregoing is directed to the preferred embodiments of the present utility model, it will be appreciated by those skilled in the art that various modifications and adaptations can be made without departing from the principles of the present utility model, and such modifications and adaptations are intended to be comprehended within the scope of the present utility model.

Claims (6)

1. The injection mold for producing the battery shell comprises an upper mold cavity (100) and a lower mold cavity (200), wherein mold cores matched with the shape of a part to be molded are respectively arranged in the upper mold cavity (100) and the lower mold cavity (200), and an injection molding opening is formed in the upper mold cavity (100), and the injection mold is characterized in that an ejection assembly (300) is arranged at the lower part of the lower mold cavity (200), the ejection assembly (300) comprises an ejector rod (301) arranged at the lower part of the lower mold cavity (200), the ejector rod (301) penetrates through the lower mold cavity (200), a sealing structure is arranged between the upper part of the ejector rod (301) and the lower mold cavity (200), and a force application part (302) is arranged at the lower part of the ejector rod (301) and can push a product subjected to injection molding and shaping upwards to jack up.

2. The injection mold for battery case production according to claim 1, wherein the force application member (302) comprises a driving member capable of pushing the ejector rod (301) upward.

3. The injection mold for producing the battery case according to claim 2, wherein at least four ejector rods (301) are uniformly arranged below the lower mold cavity (200), through grooves (303) matched with the ejector rods (301) are formed in the lower mold cavity (200), the number of the through grooves (303) is the same as that of the ejector rods (301), springs (304) are arranged in each through groove (303), heat insulation plates matched with the springs (304) are arranged on the ejector rods (301), the upper parts of the springs (304) are located at the lower parts of the heat insulation plates, and the springs (304) are sleeved on the outer sides of the ejector rods (301).

4. The injection mold for battery case production according to claim 3, wherein the driving member is a telescopic push rod, a connecting plate is provided at the lower part of the plurality of push rods (301), and the output rod end of the telescopic push rod is positioned at the lower part of the connecting plate.

5. The injection mold for battery case production of claim 4, wherein the telescopic push rod is a hydraulic push rod.

6. The injection mold for battery case production according to claim 5, wherein a plurality of hanging rings (400) are further provided at the outer sides of the upper mold cavity (100) and the lower mold cavity (200).