CN210477671U - Hot runner system for storage battery cover - Google Patents

Abstract

The utility model relates to a hot runner system for a storage battery cover, which comprises a main flow pipe, a flow distribution plate connected with the lower end part of the main flow pipe and a plurality of squirt nozzles arranged on the lower surface of the flow distribution plate, wherein the squirt nozzles are communicated with the main flow pipe through the flow distribution plate; the utility model overcomes hot runner system structure is complicated among the accumulator lid forming die, and is with high costs and result of use not good, leads to the product to appear warpage volume big, glue thick inhomogeneous problem that distributes.

Description

Hot runner system for storage battery cover

Technical Field

The utility model relates to an injection moulding mould technical field especially relates to a battery lid hot runner system.

Background

The storage battery industry develops rapidly, the production demand of a shell matched with a storage battery is large, the existing storage battery shell production mold is generally a cold runner mold, (plastic in a molten state enters a mold cavity through a sprue bush, a runner and a sprue), and the storage battery shell production mold has the following problems: : after the cold material channel mold is opened, waste material water gap materials are formed at the sprue bush, the runner and the sprue part; : the molding cycle is long, the pressure loss is large, and the production efficiency is low; the surface smoothness of the formed product is low, and the wall thickness is not uniform; the mechanical property is lower.

A chinese utility model patent with application No. CN2017203550144, which discloses an oblique glue feeding hot runner system, comprising a hot runner fixing plate, a stacking plate, a mold core plate, wherein the hot runner fixing plate, the stacking plate and the mold core plate are combined together to form a complete oblique glue feeding hot runner system cavity; the flow distribution plate body is connected with the hot nozzle body, a swing type sealing cylinder at a position corresponding to the hot nozzle body is arranged in the code template, the flow distribution plate further comprises a valve needle, the conventional axial telescopic motion is changed to realize the working principle of a pouring gate switch, and the valve needle is quoted to rotate to realize the control of the pouring gate switch; and the surface defects of the product are generated due to vertical glue feeding in the injection molding process.

However, it has the following problems: firstly, the hot runner system has a complex structure and higher manufacturing cost, the heating effect on raw materials is poor, the specific glue inlet point setting is not disclosed, and the optimized setting of the glue inlet point plays an important role in the forming quality of products.

SUMMERY OF THE UTILITY MODEL

The utility model aims at prior art's weak point, a battery lid hot runner system is provided, through controlling the runner symmetry to set up and each subchannel length such as bore, it sets up in the positive intermediate position department of battery lid to advance to glue the point, and the runner of mainstream pipe from top to bottom sets gradually the back taper section, cylindricality section and toper section, and then overcome battery lid forming die in the hot runner system structure complicated, it is with high costs and result of use not good, it is big to lead to the product to appear warpage deformation, the inhomogeneous problem of thick distribution of gluing.

Aiming at the technical problems, the technical scheme is as follows:

the utility model provides a battery cover hot runner system, includes the sprue, with the flow distribution plate of sprue lower part connection and set up a plurality of purt mouths on the lower surface of flow distribution plate, the purt mouth passes through flow distribution plate and sprue intercommunication, the glue outlet of purt mouth corresponds the gluey point of advancing of fashioned battery cover, it is located the intermediate position department of battery cover to advance gluey point.

Preferably, the splitter plate is provided with a main flow channel and a plurality of branch flow channels communicated with the main flow channel, the main flow channel is communicated with the main flow pipe, the branch flow channels extend towards a plurality of squirts close to the end points by taking the left and right end points of the main flow channel as starting points, and the squirts are communicated with the branch flow channels.

Preferably, the glue inlet point is located at the middle position between the two acid adding ports in the middle of the storage battery cover.

Preferably, the main flow channel is arranged in a horizontal direction, and a connection position of the main flow channel and the main flow pipe is located at the middle of the main flow channel.

Preferably, a positioning ring is connected to the end of the main flow pipe and communicated with the main flow pipe.

Preferably, the branch flow passages have the same caliber and the same length.

As a further preference, heating elements are mounted around the diverter plate and the squirt nozzle.

The beneficial effects of this embodiment:

the utility model provides a hot runner simple structure, the preparation is convenient with low costs, and runner symmetry sets up and each subchannel is length such as bore about it, guarantees that a fashioned cover quality of accumulator of many plays can both obtain guaranteeing, in addition, obtains through many times the analog forming analysis that it warp deformation volume is few, glue thick distribution the most even when advancing the setting of gluey point in the positive intermediate position department of cover.

To sum up, the hot runner has the advantages of simple structure, convenience in manufacture, low cost, reliable quality of the formed storage battery and the like, and is particularly suitable for the technical field of injection molding die equipment.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic diagram of a corresponding battery cover hot runner system according to an embodiment;

FIG. 2 is a schematic longitudinal cross-sectional flow path of a hot runner system of a corresponding battery cover according to an embodiment;

FIG. 3 is an enlarged view of FIG. 1 at B;

FIG. 4 is a schematic cross-sectional flow path diagram of a corresponding battery cover hot runner system according to an embodiment;

FIG. 5 is a schematic diagram of a hot runner system for a corresponding battery cover according to an embodiment;

FIG. 6 is a schematic cross-sectional flow path diagram of a two-corresponding battery cover hot runner system according to an embodiment;

FIG. 7 is a schematic structural diagram of a hot runner system of a third corresponding battery cover according to an embodiment;

fig. 8 is a schematic cross-sectional flow channel diagram of a hot runner system of a third corresponding storage battery cover of the embodiment.

Detailed Description

The technical solution in the embodiment of the present invention is clearly and completely described below with reference to the accompanying drawings.

Example one

As shown in fig. 1 to 4, the present embodiment provides a hot runner system for a battery cover, including a main flow pipe 11, a flow distribution plate 12 connected to a lower end of the main flow pipe 11, and a plurality of squirts 13 disposed on a lower surface of the flow distribution plate 12, wherein the squirts 13 are communicated with the main flow pipe 11 through the flow distribution plate 12, a glue outlet 131 of the squirts 13 corresponds to a glue inlet 101 of the formed battery cover 100, and the glue inlet 101 is located at a middle position of the battery cover 100.

Furthermore, a main channel 121 and a plurality of branch channels 122 connected to the main channel 121 are disposed in the flow dividing plate 12, the main channel 121 is connected to the main pipe 11, the branch channels 122 extend from two left and right ends of the main channel 121 to a plurality of spouts 13 near the ends, and the spouts 13 are connected to the branch channels 122.

The hot runner is simple in structure, convenient to manufacture and low in cost, the left runner and the right runner are symmetrically arranged, the sub-runners are equal in diameter and length, the quality of the storage battery cover formed in multiple ways can be guaranteed, and in addition, the warping deformation amount is small and the glue thickness distribution is uniform when the glue inlet point is arranged at the middle position of the storage battery cover through multiple times of simulation forming analysis.

Further, the glue inlet 101 is located at the middle position between the two acid adding ports 102 in the middle of the battery cover 100.

Further, the main flow channel 121 is disposed along the horizontal direction, and the connection position with the main flow pipe 11 is located at the middle thereof.

Further, the end of the main flow pipe 11 is connected with a positioning ring 4 communicated with the main flow pipe.

Further, the branch runners 122 have the same caliber and the same length.

Further, heating elements are installed around the splitter plate 12 and the squirt nozzle 13, and the specific arrangement of the heating elements is not specifically limited herein, and the heating elements may be arranged around the heating wires.

The mold in this embodiment is a four-mold, four of the squirts 3 are provided, two branch runners 122 extend from the left end of the main runner 121 to the two left squirts 13, two branch runners 122 extend from the right end of the main runner 121 to the two right squirts 3, and the two left branch runners 122 and the two right branch runners 122 are all in the same straight line and are parallel to the main runner 121.

Example two

As shown in fig. 5 and 6, in which the same or corresponding components as those in the first embodiment are denoted by the same reference numerals as those in the first embodiment, only the points of difference from the first embodiment will be described below for the sake of convenience. The second embodiment is different from the first embodiment in that: the mold corresponding to this embodiment is a six-mold, and includes a flow distribution plate a14, six nozzles a15 are disposed on the lower surface of the flow distribution plate a14, three branch flow passages a124 extend from the left end portion of the main flow passage a123 opened in the flow distribution plate a14 to the upper left two nozzles a15 and the lower left one nozzle a15, three branch flow passages a124 extend from the right end portion of the main flow passage a123 to the lower right two nozzles a15 and the upper right one nozzle a15, and each branch flow passage a124 is disposed in parallel with the main flow passage a 123.

EXAMPLE III

As shown in fig. 7 and 8, in which the same or corresponding components as those in embodiment two are denoted by the same reference numerals as those in embodiment two, only the points of difference from embodiment two will be described below for the sake of convenience. The third embodiment is different from the second embodiment in that: the mould that corresponds in this embodiment is a six mould, including flow distribution plate b16, flow distribution plate b 16's lower surface is provided with six pump mouths b17, the back and forth side of two tip of sprue b125 that set up in flow distribution plate b16 is seted up jagged groove 7, the material of flow distribution plate b16 can be saved on the one hand to the seting up of this jagged groove 7, on the other hand also can make the heating member that encircles form better even heating to its each position, it is smooth and easy to guarantee that the shaping raw materials flows, in order to cooperate the setting of this jagged groove 7, be the slope setting between each sprue b126 and the sprue b125 in this embodiment.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (7)

1. The utility model provides a battery cover hot runner system, its characterized in that includes main flow pipe (11), flow distribution plate (12) and a plurality of purt mouths (13) of setting on the lower surface of flow distribution plate (12) that are connected with main flow pipe (11) lower extreme, purt mouth (13) pass through flow distribution plate (12) and main flow pipe (11) intercommunication, the glue outlet (131) of purt mouth (13) correspond the gluey point (101) of advancing of fashioned battery cover (100), it is located the intermediate position department of battery cover (100) to advance gluey point (101).

2. A battery cover hot runner system as claimed in claim 1, wherein: a main flow channel (121) and a plurality of branch flow channels (122) communicated with the main flow channel (121) are formed in the flow distribution plate (12), the main flow channel (121) is communicated with the main flow pipe (11), the branch flow channels (122) extend towards a plurality of squirts (13) close to end points by taking the left end point and the right end point of the main flow channel (121) as starting points, and the squirts (13) are communicated with the branch flow channels (122).

3. A battery cover hot runner system as claimed in claim 2, wherein: the glue inlet point (101) is positioned at the middle position between two acid adding ports (102) in the middle of the storage battery cover (100).

4. A battery cover hot runner system as claimed in claim 2, wherein: the main flow channel (121) is arranged along the horizontal direction, and the connecting position of the main flow channel and the main flow pipe (11) is located in the middle of the main flow channel.

5. A battery cover hot runner system as claimed in claim 1, wherein: the end part of the main flow pipe (11) is connected with a positioning ring (4) communicated with the main flow pipe.

6. A battery cover hot runner system as claimed in claim 2, wherein: the branch flow passages (122) have the same caliber and the same length.

7. A battery cover hot runner system as claimed in claim 1, wherein: heating elements are arranged around the flow distribution plate (12) and the squirt nozzle (13).

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