CN221605033U - Large-scale energy storage box upper cover injection mold - Google Patents

Abstract

The utility model relates to the technical field of injection molding production, in particular to an injection mold for an upper cover of a large energy storage box, which comprises a fixed mold (3), a core pulling system (4), an ejection system (5), a pouring system (6) and a movable mold (7), wherein the fixed mold (3) comprises a top plate (34), a hot runner plate (35) and a cavity plate (1), the hot runner plate (35) is fixed on the top plate (34), and the cavity plate (1) is fixed on the hot runner plate (35). The utility model has scientific and reasonable design, simple and practical mechanism, can be used for producing injection molding products such as the upper cover of the unit in the large-scale energy storage box by injection molding, ejection, core pulling and the like, ensures the quality of the products, realizes stable and quantitative production, prolongs the service life of the products, and simultaneously has the advantages of convenient operation and use, safe and reliable action, cost saving, labor intensity reduction and work efficiency improvement.

Description

Large-scale energy storage box upper cover injection mold

Technical Field

The utility model relates to the technical field of injection molding production, in particular to an injection mold for an upper cover of a large energy storage box.

Background

The volume of the energy storage unit in the existing energy storage container is smaller, the corresponding upper cover of the energy storage unit is smaller, and the length of the upper cover is generally about 1 meter. The size of the upper cover of the large energy storage box can exceed 2 meters, the width size can exceed 1 meter, the upper cover of the large energy storage box produced in mass in the prior art is mainly produced by plastic suction, the yield is low in production, and problems often exist in appearance and internal quality.

Disclosure of utility model

The utility model aims to solve the defects in the prior art, and provides an injection mold for an upper cover of a large energy storage box, which is used for producing the upper cover of the large energy storage box through injection molding.

The technical scheme provided by the utility model is as follows: the injection mold for the upper cover of the large energy storage box comprises a fixed mold, a movable mold, a pouring system, an ejection system and a core pulling system, and is characterized in that the fixed mold comprises a top plate, a hot runner plate and a cavity plate, the hot runner plate is fixed on the top plate, the cavity plate is fixed on the hot runner plate, the movable mold comprises a core plate, a bottom plate and square iron, the square iron is fixed on the bottom plate, the core plate is fixed on the square iron, the pouring system is fixedly arranged between the top plate and the hot runner plate, the ejection system is fixedly arranged on the movable mold, and the core pulling system is arranged on the fixed mold or the movable mold;

The pouring system is arranged on a hot runner plate connected to the top plate, the hot runner plate is provided with a runner hole, the cavity plate is also provided with a runner hole corresponding to the runner hole of the hot runner plate, the hot runner main body is provided with a runner pipe which is fixedly arranged on the hot runner plate, the runner pipe penetrates through the runner hole of the hot runner plate and the runner hole of the cavity plate, the hot runner main body and the runner pipe a are provided with a runner and a valve needle hole which are communicated, an oil cylinder I is fixedly arranged on the hot runner main body, the valve needle is connected with an oil cylinder I piston, and the valve needle is movably arranged in valve needle holes of the hot runner main body and the runner pipe;

The ejection system is fixedly arranged on the fixed die and the movable die and comprises an ejector block mechanism and an air ejector mechanism, wherein the ejector block mechanism comprises a third oil cylinder, an ejector plate, an ejector block rod, a common ejector block and a suspension ejector block; the air-jacking mechanism is arranged on a cavity plate of a fixed die and a core plate of a movable die and comprises an air-jacking sleeve piece and an air channel, wherein stepped air channels are respectively formed in the cavity plate and the core plate, the air-jacking sleeve piece comprises an air-jacking, an air valve, a spring and a pin, the air-jacking is provided with a stepped hole and a pin groove, the air-jacking mechanism is arranged in the stepped air channels respectively formed in the cavity plate and the core plate, the stepped air valve is arranged in the stepped hole of the air-jacking matched with the stepped air valve, one end of the stepped air valve is provided with a taper, the end face of the stepped air valve is leveled with the cavity plate and the core plate, the other end of the stepped air valve is provided with a pin, the pin is arranged in the pin groove of the air-jacking, and the spring is propped against between the air valve step and the pin;

the core pulling system is fixedly arranged between the cavity plate and the core plate.

The injection mold for the upper cover of the large energy storage box is characterized in that the hot runner plate is provided with runner holes, and the number of hole points is 18-40.

The large-scale energy storage box upper cover injection mold is characterized in that the number of the top block rods is 30-50.

The large-scale energy storage box upper cover injection mold is characterized in that the core plate is provided with a reinforcing rib groove, one side of the reinforcing rib groove is a near ejection side, the other side of the opposite side is a far ejection side, and the ejector blocks or the hanging ejector blocks are uniformly close to the same side of the reinforcing rib groove, namely the near ejection side.

The injection mold for the upper cover of the large energy storage box is characterized in that the distance between the top block and the hanging top block is 10-20 mm from the top side of the reinforcing rib groove.

The injection mold for the upper cover of the large energy storage box is characterized in that reinforcing rib pits with equal wall thickness and glue are arranged on the side of the core plate corresponding to the runner pipe.

The large-scale energy storage box upper cover injection mold is characterized in that the core pulling system adopts a fixed mould bullet piece core pulling mechanism, and comprises a bullet piece main body, a guide post, a pneumatic spring and a limiting block, wherein the guide post, the pneumatic spring and the limiting block are fixed on a cavity plate 1 of the fixed mould, and the bullet piece main body is provided with a guide hole, is movably sleeved on the guide post and is propped against by the pneumatic spring.

The large energy storage box upper cover injection mold is characterized in that the core pulling system adopts a fixed mold oil cylinder core pulling mechanism and comprises a core pulling block, a driving block, an oil cylinder II and a limiting piece, wherein the driving block is provided with an inclined plane, a T-shaped block is arranged on the inclined plane, the core pulling block is provided with a corresponding inclined plane, a T-shaped groove is arranged on the inclined plane and is arranged in a chute formed in a cavity plate, the T-shaped groove of the core pulling block is connected with the corresponding T-shaped block of the driving block in an installation mode, the inclined planes of the T-shaped groove and the driving block are contacted, and the oil cylinder II and the limiting piece are fixed on the cavity plate 1.

The large-scale energy storage box upper cover injection mold is characterized in that the core pulling system adopts a movable mold oblique ejection core pulling mechanism, and comprises an oblique ejector block, an oblique ejector rod, an oblique ejector seat, a sliding block and a fastening nut, wherein the oblique ejector seat is provided with a sliding groove, the sliding block is obliquely and fixedly arranged on an ejector plate, the sliding block is arranged in the sliding groove of the oblique ejector seat, one end of the oblique ejector rod 2 is connected with the sliding block through the fastening nut, and the other end of the oblique ejector rod is connected with the oblique ejector block to form an oblique state.

The large-scale energy storage box upper cover injection mold is characterized by further comprising a cooling device, wherein a hollow waterway is arranged in the middle of the inclined ejector rod, the hollow waterway is connected with the middle waterway of one inclined ejector rod through a water temperature machine and a water pipe, the middle waterway of the other inclined ejector rod is communicated with the water waterway of the other inclined ejector rod through the water pipe, and the water waterway is connected with the water temperature machine through the water pipe to form a circulating cooling waterway.

The injection mold for the upper cover of the large energy storage box has scientific and reasonable design, simple and practical mechanism, can be used for injection molding production of injection molding products such as the upper cover of a unit in the large energy storage box, ensures the quality of the products in various aspects such as injection molding, ejection, core pulling and the like, realizes stable quantitative production, prolongs the service life of the products, and simultaneously has the advantages of convenient operation and use, safe and reliable action, cost saving, labor intensity reduction and work efficiency improvement.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute a limitation on the application.

FIG. 1 is a schematic perspective view of a large energy storage case top product;

FIG. 2 is a schematic perspective view of an injection mold for the upper cover of the large energy storage box of the utility model;

FIG. 3 is a schematic plan view of the top view of FIG. 2;

FIG. 4 is an exploded view of a portion of the components of the present utility model;

FIG. 5 is a schematic view of the connection of the core plate, square iron and bottom plate of the present utility model;

FIG. 6 is a schematic perspective view of the casting system of the present utility model;

FIG. 7 is a schematic diagram of the stepped section casting system of FIG. 3 A-A;

FIG. 8 is an enlarged schematic view of the area E of FIG. 7;

FIG. 9 is a schematic perspective view of an ejector system of the present utility model;

FIG. 10 is a schematic perspective view of the ejection system of FIG. 9 in an inverted orientation;

FIG. 11 is a schematic perspective view of the ejection system of FIG. 9 in an alternate flip-over orientation;

FIG. 12 is an enlarged schematic view of the area F of FIG. 11;

FIG. 13 is a schematic plan view of the bottom view of FIG. 5;

FIG. 14 is a partial schematic view of the ejector system of FIG. 13 taken along the steps B-B;

FIG. 15 is a top plan schematic view of the explosion separated cavity plate of FIG. 6;

FIG. 16 is a schematic view of the C-C cross-sectional air cap mechanism of FIG. 15;

FIG. 17 is an enlarged schematic view of the area G of FIG. 16;

FIG. 18 is a schematic perspective view of a gas cap mechanism;

FIG. 19 is a schematic perspective view of a front mold block core pulling mechanism;

FIG. 20 is a schematic perspective view of the front mold block core pulling mechanism in the reverse direction of FIG. 19;

FIG. 21 is a schematic diagram showing the perspective installation of a front-mold cylinder core pulling mechanism;

FIG. 22 is a schematic perspective view of a front mold cylinder core pulling mechanism;

FIG. 23 is a schematic perspective view of another front mold cylinder core pulling mechanism;

FIG. 24 is a schematic perspective view of a rear mold tilt head core pulling mechanism;

FIG. 25 is a schematic perspective view of the back mold tilt head core pulling mechanism of FIG. 24;

FIG. 26 is a schematic view partially in plan and partially in section of a rear mold tilt head core pulling mechanism;

In the figure: 1-cavity plate, 1 a-runner hole, 2-core plate, 2 a-reinforcing rib groove, 2 b-thickened pit, 3-fixed mold, 4-core pulling system, 5-ejection system, 6-pouring system, 7-movable mold, 8-cylinder one, 9-valve needle, 10-solenoid valve, 11-signal wire socket, 12-spring block body, 13-guide post, 14-pneumatic spring, 15-stopper, 16-guide hole, 17-core pulling block, 18-driving block, 18 a-T-block, 19-cylinder, 20-stopper, 21-oblique ejector block, 22-oblique ejector pin, 23-oblique ejector seat, 23 a-chute, 24-slider, 25-fastening nut, 26-ejector plate, 27-air valve, 28-air-ejector, 29-spring, 30-air passage, 31-support column, 32-square iron, 33-bottom plate, 34-top plate, 35-hot runner plate, 36-cylinder, 37-runner body, 37 a-runner tube, 37 b-runner, 38-ejector pin, 39-ejector block, 40-piston and 41-piston pin.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the following description of the specific embodiments is only for the purpose of illustrating the utility model, and in this description, attention is given to the keywords including "hot runner body", "air passage", "air cap", "valve needle", "air valve", "bullet body", "T-shaped block", "T-shaped groove", etc., which are only for the convenience of describing the utility model and simplifying the description, and thus should not be construed as limiting the utility model.

As shown in fig. 1, the injection mold for the upper cover of the large energy storage box of the present embodiment, the produced upper cover product P of the large energy storage box is provided with a through hole P1, as shown in fig. 2, 4 and 5, and referring to fig. 9, the injection mold comprises a fixed mold 3, a core pulling system 4, an ejection system 5, a pouring system 6 and a movable mold 7. The fixed mold 3 comprises a top plate 34, a hot runner plate 35 and a cavity plate 1, wherein the hot runner plate 35 is fixed on the top plate 34, and the cavity plate 1 is fixed on the hot runner plate 35. The movable die 7 comprises a core plate 2, a bottom plate 33 and square irons 32, wherein the square irons 32 are fixed on the bottom plate 33, the core plate 2 is fixed on the square irons 32, the pouring system 6 is fixedly arranged between the top plate 34 and the hot runner plate 35, the ejection system 5 is fixedly arranged on the movable die 7, and the core pulling system 4 is arranged on the fixed die 3 or the movable die 7.

As shown in fig. 6-8, the pouring system 6 is installed on a hot runner plate 35 connected to the top plate 34, the hot runner plate 35 is provided with runner holes, the number of hole points is 18-40, the number of specific point points is determined according to the size, material and wall thickness of the product P, 18 in this embodiment, the cavity plate 1 fixed on the hot runner plate 35 is also provided with runner holes 1a, corresponding to the runner holes of the hot runner plate 35, the hot runner main body 37 is provided with runner pipes 37a, installed and fixed on the hot runner plate 35, the runner pipes 37a pass through the runner holes of the hot runner plate 35 and the runner holes 1a of the cavity plate 1, and the hot runner main body 37 and the runner pipes 37a are provided with communicating runners 37b and valve pinholes. As shown in fig. 8-11, each runner tube 37a is opened and closed, a valve needle 9 is driven by an independent first oil cylinder 8 to control, the first oil cylinder 8 is fixed on the hot runner main body 37, the valve needle 9 is connected with the first oil cylinder 8 in a piston manner, the valve needle 9 is movably installed in the hot runner main body 37 and a valve needle hole of the runner tube 37a, the first oil cylinder 8 drives the valve needle 9 to move up and down during injection molding, the valve needle 9 moves up to open a valve needle hole port of the runner tube 37a, molten plastic is injected into a mold cavity through the runner 37a, the valve needle hole and the runner hole 1a of the cavity plate 1, the valve needle 9 moves down, the point runner tube 37a is provided with the valve needle hole port to seal, and the molten plastic stops entering the mold cavity. Because the product P is large in size and thin in wall thickness, in order to ensure better filling and shorter filling time of the product P, in the embodiment, a middle row of nozzles are simultaneously opened, injection molding material flows from the middle to two sides, the nozzles at the two sides are sequentially opened, and the nozzles at the two sides are finally opened for pressure maintaining. The opening and closing sequence of the flow channel pipes 37a at each point is controlled by using the electromagnetic valve 10 to control the first oil cylinder 8, the electromagnetic valve 10 is connected with an injection molding machine through the signal wire socket 11, the signal of the injection molding machine is received to realize the sequential opening and closing, and the electromagnetic valve 10 and the signal wire socket 11 are generally arranged on the hot flow channel main body 37. In the injection molding process, the pouring gate adopts an injection opening and early closing function to reduce injection pressure, reduce reverse thrust generated by the injection pressure, reduce mold locking force and control P flash and wall thickness of a product. The injection molding process uses a method of delaying and maintaining pressure of an intermediate gate to control the problem of intermediate deformation of products.

The front point of the runner tube 37a is directly contacted with the surface of the product P, and if the gate is not trimmed after the product P is taken out, a casting pit with the diameter of 8mm and the depth of about 0.5mm is formed on the surface of the product. The product P is installed and used, the sealing requirement is required to be met, the local wall thickness of the product P is thinned due to the casting concave mould pit, the strength of the product P is affected, and the cracking risk is caused under the high-pressure state. The corresponding position of the mould is provided with reinforcing rib pits 2b with equal wall thickness and glue on the side of the core plate 2, so that the strength of the product P is ensured.

As shown in fig. 9 to 12, the ejector system 5 is mounted and fixed on the fixed mold 3 and the movable mold 7, and the ejector system 5 includes an ejector block mechanism and an air ejector mechanism. The ejector block mechanism comprises an oil cylinder III 36, an ejector plate 26, ejector block rods 38, a common ejector block 39 and a suspension ejector block 40, wherein the oil cylinder III 36 is fixed on the core plate 2, the ejector plate 26 is connected with the oil cylinder III 36 through a piston, 30-50 ejector block rods 38 are adopted, one ends of the ejector block rods 38 are connected with the ejector plate 26, the other ends of the ejector block rods are connected with the common ejector block 39 or the suspension ejector block 40, and the suspension ejector block 40 is provided with suspension fingers used for suspending a product P in the die opening. When the die is opened, the third oil cylinder 36 drives the ejector plate 26 to eject upwards, the ejector plate 26 drives the ejector rod 38, the ejector rod 38 drives the common ejector 39 or the hanging ejector 40 to move upwards, and the plurality of ejector blocks move upwards together to eject the product P. The weight of the product P can reach more than 8KG, and the product P can drop due to the gravity of the product P during ejection. The hanging ejector block 40 is attached to the side wall of the upper edge of the product P, and is used for hanging the product P in the mold opening, preventing the product P from falling, and taking the product P away after the mold opening is ejected. The product P is large in size, the back surface is provided with the reinforcing ribs, the conventional ejector blocks are easy to eject, and the ejector blocks are uniformly arranged for ejection. And the product P is large in size, the maximum shrinkage after ejection is tens of millimeters, a conventional ejector block is arranged between two reinforcing rib positions, and the product P is difficult to take down after ejection due to the fact that the product P is clamped on the ejector block due to the large shrinkage of the product P. As shown in fig. 12, in the present embodiment, all the rib grooves 2a formed by forming the ribs on the core plate 2 are provided, one side is the near ejection side, the other side on the opposite side is the far ejection side, in this embodiment, the ejector blocks 39 or the suspension ejector blocks 40 are uniformly positioned (close to) on the same side of the rib groove 2a, i.e., the near ejection side, and avoidance of a certain size (10-20 mm) is provided on the ejection side away from the rib groove 2a, so that the product P is not hooked by the ejector blocks 39 or the ejector blocks 40 when contracting.

Referring to fig. 13-18, two sets of air-cap mechanisms are respectively installed on a cavity plate 1 of a fixed mold 3 and a core plate 2 of a movable mold 7, and comprise an air-cap sleeve and an air passage 30, and the cavity plate 1 and the core plate 2 are respectively provided with a step-shaped air passage 30. The air top sleeve comprises an air top 28, an air valve 27, a spring 29 and a pin 41, wherein the air top 28 is provided with a step hole and a pin groove 28a, the air top is arranged in a step-shaped air passage 30 respectively formed in a cavity plate 1 and a core plate 2, the step-shaped air valve 27 (shaft) is arranged in the step hole of the air top 28 matched with the air top, one end of the air top sleeve is provided with a taper, the end face of the air top sleeve is leveled with the cavity plate 1 and the core plate 2, the corresponding step hole of the air top 28 can be effectively opened or closed, the other end of the air top sleeve is provided with the pin 41, the pin 41 is arranged in the pin groove 28a of the air top 28, and the spring 29 abuts against the step of the air valve 27 and the pin 41. When the gas enters the air passage 30 and the gas cap 28, the resistance of the spring 29 is overcome, the gas valve 27 for closing the stepped hole of the gas cap 28 is opened, and the gas blows to the product P, so that the product P can be separated from the fixed die 3 and the movable die 7. When the gas stops entering, the spring 29 resets the gas valve 27, and the gas valve 27 reseats the stepped hole of the gas cap 28.

The core pulling system 4 is arranged and fixed between the cavity plate 1 and the core plate 2 and is used for pulling core after die sinking. The core pulling system 4 generally uses three core pulling modes: the fixed die elastic block core pulling, the fixed die oil cylinder core pulling and the movable die oblique ejection core pulling are performed. Their corresponding mechanisms are as follows:

1. The fixed die elastic block core pulling mechanism is shown in fig. 19 and 20, and comprises an elastic block main body 12, a guide post 13, a pneumatic spring 14 and a limiting block 15, wherein the guide post 13, the pneumatic spring 14 and the limiting block 15 are fixed on a cavity plate 1 of a fixed die 3, the elastic block main body 12 is provided with a guide hole 16, and the elastic block main body is movably sleeved on the guide post 13 and is propped against by the pneumatic spring 14. When the mold is opened, the pneumatic spring 14 pushes the elastic block main body 12 to move along the guide post 13, and the elastic block main body moves outwards (rightward in fig. 19), so that the mold is pulled out to back-buckle the product P. After the core pulling is completed, the elastic block main body 12 also moves to the position of the limiting block 15, and the elastic block main body 12 stops moving. When the mold is closed, the elastic block main body 12 is pushed by the core plate 2 to reset.

2. The fixed die cylinder core pulling mechanism, see fig. 21, 22 and 23, comprises: core pulling block 17, driving block 18, hydro-cylinder two 19, locating part 20. The driving block 18 is provided with an inclined plane, the inclined plane is provided with a T-shaped block, the core pulling block 17 is provided with a corresponding inclined plane, the inclined plane is provided with a T-shaped groove, the T-shaped groove of the core pulling block 17 is installed in a chute arranged on the cavity plate 1, the T-shaped groove of the core pulling block 17 is connected with the corresponding T-shaped block of the driving block 18 in an installation way, and the inclined planes of the T-shaped block and the T-shaped block are contacted. The second oil cylinder 19 and the limiting piece 20 are fixed on the back surface of the cavity plate 1. When the die is opened, the second oil cylinder 19 drives the driving block 18 to move upwards, and the T-shaped block on the driving block 18 drives the core pulling block 17 to move backwards, so that core pulling is completed. When the core pulling is completed, the driving block 18 collides with the limiting piece 20, and the movement is stopped. After the product P is demolded and taken away, the second oil cylinder 19 drives the core pulling block 17 to reset.

3. The movable die oblique ejection core pulling mechanism is shown in fig. 24 and 25, and comprises an oblique ejection block 21, an oblique ejection rod 22, an oblique ejection seat 23, a sliding block 24 and a fastening nut 25. The inclined top seat 23 is provided with a chute, and is obliquely and fixedly arranged on the ejector plate 26, the sliding block 24 is arranged in the chute of the inclined top seat 23, one end of the inclined top rod 22 is connected with the sliding block 24 through the fastening nut 25, and the other end is connected with the inclined top block 21 to form an inclined state. As shown in fig. 26, when the product P is ejected, the slide block 24 slides obliquely leftwards and downwards through the slide groove of the oblique ejector seat 23 along with the vertical upward movement of the ejector plate 26, so as to drive the oblique ejector rod 22 and the oblique ejector block 21 to move obliquely leftwards, and the oblique ejector block 21 moves leftwards relative to the product P, thereby realizing core pulling.

The oblique top core pulling mechanism is large, and the embodiment is provided with water cooling. In the cooling system, a hollow waterway is arranged in the middle of the inclined jack rod 22, water is guided through a water pipe of the water temperature machine, enters the middle waterway in one inclined jack rod 22, is communicated through the water pipe, and is led out to the water temperature machine from the middle waterway of the other inclined jack rod, so that the circulation of the cooling waterway is realized.

The above description is only one embodiment of the present utility model, and other embodiments of the present utility model with various modifications and changes will be apparent to those skilled in the art, and it is not intended to be exhaustive. Any modification, equivalent replacement, improvement, or the like, which is within the spirit and principle of the present utility model, is included in the scope of the present utility model as claimed.

Claims (10)

1. The injection mold for the upper cover of the large energy storage box comprises a fixed mold (3), a movable mold (7), a pouring system (6), an ejection system (5) and a core pulling system (4), and is characterized in that the fixed mold (3) comprises a top plate (34), a hot runner plate (35) and a cavity plate (1), the hot runner plate (35) is fixed on the top plate (34), the cavity plate (1) is fixed on the hot runner plate (35), the movable mold (7) comprises a core plate (2), a bottom plate (33) and a square iron (32), the square iron (32) is fixed on the bottom plate (33), the core plate (2) is fixed on the square iron (32), the pouring system (6) is fixed between the top plate (34) and the hot runner plate (35), the ejection system (5) is fixed on the movable mold (7), and the core pulling system (4) is fixed on the fixed mold (3) or the movable mold (7);

The pouring system (6) is installed and connected on a hot runner plate (35) on a top plate (34), the hot runner plate (35) is provided with a runner hole, the cavity plate (1) is also provided with a runner hole (1 a) corresponding to the runner hole of the hot runner plate (35), a hot runner main body (37) is fixedly installed on the hot runner plate (35), the hot runner main body (37) is provided with a runner pipe (37 a), the runner pipe (37 a) penetrates through the runner hole of the hot runner plate (35) and the runner hole (1 a) of the cavity plate (1), the hot runner main body (37) and the runner pipe (37 a) are provided with a runner (37 b) and a valve needle hole which are communicated, a first oil cylinder (8) is fixed on the hot runner main body (37), the valve needle (9) is in piston connection with the first oil cylinder (8), and is movably installed in the runner main body (37) and the valve needle hole of the runner pipe (37 a);

The ejection system (5) is fixedly arranged on the fixed die (3) and the movable die (7) and comprises an ejector block mechanism and an air ejector mechanism, the ejector block mechanism comprises a cylinder III (36), an ejector plate (26), an ejector block rod (38), a common ejector block (39) and a suspension ejector block (40), the cylinder III (36) is fixedly arranged on the core plate (2), the ejector plate (26) is connected with a piston of the cylinder III (36), one end of the ejector plate is connected with the ejector plate (26), the other end of the ejector plate is connected with the common ejector block (39) or the suspension ejector block (40), and the suspension ejector block (40) is provided with suspension fingers; the air cap mechanism is arranged on a cavity plate (1) of a fixed die (3) and a core plate (2) of a movable die (7), and comprises an air cap sleeve member and an air passage (30), wherein the cavity plate (1) and the core plate (2) are respectively provided with a stepped air passage (30), the air cap sleeve member comprises an air cap (28), an air valve (27), a spring (29) and a pin (41), the air cap (28) is provided with a stepped hole and a pin groove (28 a), the air cap mechanism is arranged in the stepped air passage (30) respectively arranged on the cavity plate (1) and the core plate (2), the stepped air valve (27) is arranged in the stepped hole of the air cap (28) matched with the stepped air valve, one end face of the stepped air valve is provided with a taper, the end face of the stepped air valve is leveled with the cavity plate (1) and the core plate (2), the other end of the stepped air valve is provided with a pin (41), the pin (41) is arranged in the pin groove (28 a), and the spring (29) is propped against the step between the air valve (27) and the pin (41);

the core pulling system (4) is fixedly arranged between the cavity plate (1) and the core plate (2).

2. The large energy storage box upper cover injection mold according to claim 1, wherein the hot runner plate (35) is provided with runner holes, and the number of hole points is 18-40.

3. The large energy storage box upper cover injection mold according to claim 1, wherein the number of the top block rods (38) is 30-50.

4. The injection mold for the upper cover of the large-sized energy storage box according to claim 1, wherein the core plate (2) is provided with a reinforcing rib groove (2 a), one side of the reinforcing rib groove is a near ejection side, the other side of the opposite side is a far ejection side, and the ejector block (39) or the suspension ejector block (40) is uniformly close to the same side of the reinforcing rib groove (2 a), namely the near ejection side.

5. The injection mold for the upper cover of the large energy storage box according to claim 4, wherein the ejection block (39) or the hanging ejection block (40) is 10 mm-20 mm away from the ejection side of the reinforcing rib groove (2 a).

6. The large-sized energy storage box upper cover injection mold according to claim 1, wherein a reinforcing rib pit (2 b) with equal wall thickness and glue is arranged on the side of the core plate (2) corresponding to the runner pipe (37 a).

7. The large-scale energy storage box upper cover injection mold according to claim 1, wherein the core pulling system (4) adopts a fixed mold bullet piece core pulling mechanism, and comprises a bullet piece main body (12), a guide post (13), a pneumatic spring (14) and a limiting block (15), wherein the guide post (13), the pneumatic spring (14) and the limiting block (15) are fixed on a cavity plate (1) of the fixed mold (3), the bullet piece main body (12) is provided with a guide hole (16), and the bullet piece main body is movably sleeved on the guide post (13) and is propped by the pneumatic spring (14).

8. The injection mold for the upper cover of the large energy storage box according to claim 1, wherein the core pulling system (4) adopts a fixed mold oil cylinder core pulling mechanism, and comprises a core pulling block (17), a driving block (18), a second oil cylinder (19) and a limiting piece (20), wherein the driving block (18) is provided with an inclined plane, a T-shaped block is arranged on the inclined plane, the core pulling block (17) is provided with a corresponding inclined plane, a T-shaped groove is arranged on the inclined plane, the T-shaped groove of the core pulling block (17) is installed in a chute arranged on a cavity plate (1), the T-shaped block corresponding to the driving block (18) is installed and connected, the inclined planes of the T-shaped block and the driving block are contacted, and the second oil cylinder (19) and the limiting piece (20) are fixed on the cavity plate (1).

9. The large-scale energy storage box upper cover injection mold according to claim 1, wherein the core pulling system (4) adopts a movable mold inclined ejection core pulling mechanism, and comprises an inclined ejection block (21), an inclined ejection rod (22), an inclined ejection seat (23), a sliding block (24) and a fastening nut (25), wherein the inclined ejection seat (23) is provided with a sliding groove, and is obliquely and fixedly arranged on an ejection plate (26), the sliding block (24) is arranged in the sliding groove of the inclined ejection seat (23), one end of the inclined ejection rod (22) is connected with the sliding block (24) through the fastening nut (25), and the other end of the inclined ejection rod is connected with the inclined ejection block (21) to form an inclined state.

10. The injection mold of a large energy storage box upper cover according to claim 9, further comprising a cooling device, wherein a hollow waterway is arranged in the middle of the inclined ejector rods (22), the middle waterway of one inclined ejector rod (22) is connected through a water temperature machine and a water pipe, the middle waterway of the other inclined ejector rod is communicated through the water pipe, and the water temperature machine is connected through the water pipe to form a circulating cooling waterway.