CN210362280U - Battery cover hot runner plastic mould structure - Google Patents
Battery cover hot runner plastic mould structure Download PDFInfo
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- CN210362280U CN210362280U CN201921022740.XU CN201921022740U CN210362280U CN 210362280 U CN210362280 U CN 210362280U CN 201921022740 U CN201921022740 U CN 201921022740U CN 210362280 U CN210362280 U CN 210362280U
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Abstract
The utility model relates to a battery cover hot runner plastic mould structure, from top to bottom include the front mould fixed plate in proper order, the cope match-plate pattern, the lower bolster, square iron and back mould fixed plate, be provided with thimble bottom plate on the back mould fixed plate between two square irons of the left and right sides, be provided with thimble panel on the thimble bottom plate, still be provided with hot runner plate between front mould fixed plate and the cope match-plate pattern, be provided with the hot runner system in the hot runner plate, hot runner system includes the flow distribution plate, be provided with the sprue on the upper surface of flow distribution plate, be provided with a plurality of sprue on the lower surface of flow distribution plate, sprue is communicated with the sprue through the flow distribution plate, the glue outlet of sprue corresponds the glue inlet of the accumulator cover of shaping, the glue inlet is located the intermediate position of accumulator cover; the utility model overcomes mould shaping inefficiency, the problem that product warpage volume is big, glue thick uneven distribution and mould life is short.
Description
Technical Field
The utility model relates to an injection moulding mould technical field especially relates to a battery cover hot runner plastic mould structure.
Background
The existing production mold for the storage battery shell 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 certainly, the hot runner mold is also provided, the popularization and application of a hot runner molding technology have a positive effect on promoting the reform and development of the mold industry, and the remarkable superiority and continuous perfection of the performance of the hot runner molding technology can undoubtedly enable the technology to be popularized and applied more domestically at a higher speed.
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 mold has a complex structure and higher manufacturing cost, the molding efficiency is lower, the specific glue inlet point setting is not disclosed, and the optimized setting of the glue inlet point plays an important role in the molding quality of the product.
SUMMERY OF THE UTILITY MODEL
The utility model aims at prior art's weak point, provide a battery cover hot runner plastic mould structure, through set up hot runner system in the mould for melting plastic directly gets into the mould die cavity and does not have the waste material and produce in the accumulator cover forming process, shortens the shaping cycle, and sets up into the positive intermediate position department that the point of gluing lies in the accumulator cover and then has overcome mould shaping inefficiency, and product warpage volume is big, glue thick uneven and the short problem of mould life of distributing.
Aiming at the technical problems, the technical scheme is as follows:
the utility model provides a battery cover hot runner plastic mould structure, from top to bottom includes front mould fixed plate, cope match-plate pattern, lower bolster, square iron and back mould fixed plate in proper order, be provided with thimble bottom plate about on the back mould fixed plate between two square irons, be provided with thimble panel on the thimble bottom plate, still be provided with hot runner plate between front mould fixed plate and the cope match-plate pattern, be provided with hot runner system in the hot runner plate, hot runner system includes the flow distribution plate, be provided with the sprue on the upper surface of flow distribution plate, be provided with a plurality of sprue spouts on the lower surface of flow distribution plate, the sprue spout passes through flow distribution plate and sprue intercommunication, the play jiao kou of sprue corresponds the gluey point of advancing of fashioned accumulator lid, it is located accumulator lid's intermediate position department to advance jiao kou.
Preferably, a main runner communicated with the main runner pipe is arranged in the flow distribution plate, a plurality of branch runners are further arranged on the flow distribution plate, the branch runners extend towards a plurality of squirts close to the end points by taking the left end point and the right end point of the main runner as starting points, and the squirts are communicated with the branch runners.
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, 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, a positioning ring is arranged on the front mold fixing plate, the main runner pipe is attached to and connected with the positioning ring, and the positioning ring is communicated with the main runner pipe.
Preferably, the branch flow passages have the same caliber and the same length.
Preferably, heating elements are arranged around the splitter plate and the squirt nozzle.
Preferably, an insulation column is installed between the splitter plate and the hot runner plate.
Preferably, the hot runner system further comprises a hot runner junction box fixed on the side of the front mold fixing plate, and the hot runner junction box is used for controlling the temperature of each position of the hot runner system in cooperation with an external temperature control box.
It should be noted that the hot runner plastic mold is suitable for use with battery covers of types 12AH, 32AH, and 20 AH;
when the 12AH storage battery cover is subjected to injection molding, the temperature of injected molten plastic is set to be 220 ℃, the injection pressure is set to be 90MPa, segmented injection is adopted, the injection time is 5s, and pressure maintaining is carried out after the injection molding is finished, the pressure maintaining pressure is 65MPa, and the pressure maintaining time is 4 s; stopping feeding the rubber after the injection and pressure maintaining are finished, starting cooling for 20s, and opening the mold to take out the part after cooling;
when the 32AH storage battery cover is subjected to injection molding, the temperature of injected molten plastic is set to be 220 ℃, the injection pressure is set to be 100MPa, sectional injection is adopted, the injection time is 6s, and pressure maintaining is carried out after the injection molding is finished, the pressure maintaining pressure is 75MPa, and the pressure maintaining time is 4 s; stopping feeding the rubber after the injection and pressure maintaining are finished, starting cooling for 18s, and opening the mold to take out the part after cooling;
when the 20AH storage battery cover is subjected to injection molding, the temperature of injected molten plastic is set to be 220 ℃ and the injection pressure is set to be 120MPa, segmented injection is adopted, the injection time is 4.5s, and pressure maintaining is carried out after the injection molding is finished, the pressure maintaining pressure is 75MPa and the pressure maintaining time is 4 s; and stopping feeding the rubber after the injection and pressure maintaining are finished, starting cooling for 16s, and opening the mold to take out the part after cooling.
The beneficial effects of this embodiment:
1. in the utility model, the hot runner plate is arranged on the mould, and the hot runner system is arranged in the hot runner plate, so that the molten plastic directly enters the mould cavity without waste material in the storage battery cover forming process, the forming period is shortened, the production efficiency is improved, the automatic production degree is improved, the surface smoothness of the product is good, and the mechanical property of the product is improved; in addition, the injection pressure is reduced, and the service life of the mold is prolonged; the multi-cavity mold can ensure uniform filling quality;
2. 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 structural view of a hot runner plastic mold structure for a battery cover;
FIG. 2 is a schematic diagram of a corresponding battery cover hot runner system according to an embodiment;
FIG. 3 is an enlarged schematic view of FIG. 2 at A;
FIG. 4 is a schematic longitudinal cross-sectional flow path of a hot runner system for a corresponding battery cover 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 8, the present embodiment provides a battery cover hot runner plastic mold structure, which sequentially includes a front mold fixing plate 10, an upper mold plate 30, a lower mold plate 40, square irons 50, and a rear mold fixing plate 60 from top to bottom, an ejector pin bottom plate 70 is disposed on the rear mold fixing plate 60 between the left and right square irons 50, an ejector pin panel 80 is disposed on the ejector pin bottom plate 70, a hot runner plate 20 is further disposed between the front mold fixing plate 10 and the upper mold plate 30, a hot runner system 1 is disposed in the hot runner plate 20, the hot runner system 1 includes a splitter plate 11, a main flow pipe 2 is disposed on an upper surface of the splitter plate 11, a plurality of sprue nozzles 3 are disposed on a lower surface of the splitter plate 11, the sprue nozzles 3 are communicated with the main flow pipe 2 through the splitter plate 11, a glue outlet 31 of the sprue nozzle 3 corresponds to a glue inlet 101 of a molded storage battery cover 100, the glue inlet point 101 is located at the middle position of the battery cover 100.
It is worth mentioning that the hot runner plate is arranged on the mold, and the hot runner system is arranged in the hot runner plate, so that the molten plastic directly enters the mold cavity without generating waste materials in the storage battery cover molding process, the molding cycle is shortened, the production efficiency is improved, the automatic production degree is improved, the surface smoothness of the product is good, and the mechanical property of the product is improved; in addition, the injection pressure is reduced, and the service life of the mold is prolonged; the multi-cavity mold can ensure uniform filling quality.
Furthermore, a main flow channel 111 communicated with the main flow pipe 2 is formed in the flow distribution plate 11, a plurality of branch flow channels 112 are further formed in the flow distribution plate 11, the branch flow channels 112 extend towards a plurality of squirts 3 close to the end points by taking the left end point and the right end point of the main flow channel 111 as starting points, and the squirts 3 are communicated with the branch flow channels 112.
Further, the main flow passage 111 is disposed in a horizontal direction, and a connection position with the main flow pipe 2 is located at a right middle thereof.
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, a positioning ring 4 is arranged on the front mold fixing plate 10, the main runner pipe 2 is attached to and connected with the positioning ring 4, and the positioning ring 4 is communicated with the main runner pipe 2.
Further, the branch runners 112 have the same caliber and the same length.
Further, heating elements are arranged around the splitter plate 11 and the squirt nozzle 3.
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, an insulation column 5 is installed between the diversion plate 11 and the hot runner plate 20.
Furthermore, the hot runner system 1 further comprises a hot runner junction box 6 fixed on the side of the front mold fixing plate 10, and the hot runner junction box 6 is used for controlling the temperature of each position of the hot runner system 1 in cooperation with an external temperature control box.
The mold corresponding to the embodiment is a four-mold, four squirt nozzles 3 are provided, two branch runners 112 extend from the left end of the main runner 111 to the two left squirt nozzles 3, two branch runners extend from the right end of the main runner 111 to the two right squirt nozzles 3, and the two left branch runners 112 and the two right branch runners are all in the same straight line and are parallel to the main runner 111.
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 a12, six nozzles a13 are disposed on the lower surface of the flow distribution plate a12, three branch flow passages a122 extend from the left end portion of the main flow passage a121 opened in the flow distribution plate a12 to the upper left two nozzles a13 and the lower left one nozzle a13, and three branch flow passages a122 extend from the right end portion of the main flow passage a121 to the lower right two nozzles a13 and the upper right one nozzle a13, and each branch flow passage a122 is disposed in parallel to the main flow passage a 121.
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 mold that corresponds in this embodiment is a six-mold, including flow distribution plate b14, flow distribution plate b 14's lower surface is provided with six pump mouth b15, the back and forth side of two tip of the sprue b123 of seting up in flow distribution plate b14 is seted up and is equipped with breach groove 7, the material of flow distribution plate b14 can be saved on the one hand to seting up of this breach 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 breach groove 7, be the slope setting between each sprue b124 and the sprue b123 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 (9)
1. A battery cover hot runner plastic mold structure sequentially comprises a front mold fixing plate (10), an upper mold plate (30), a lower mold plate (40), square irons (50) and a rear mold fixing plate (60) from top to bottom, wherein a thimble base plate (70) is arranged between the left square iron (50) and the right square iron (50) on the rear mold fixing plate (60), a thimble panel (80) is arranged on the thimble base plate (70), the battery cover hot runner plastic mold structure is characterized in that a hot runner plate (20) is further arranged between the front mold fixing plate (10) and the upper mold plate (30), a hot runner system (1) is arranged in the hot runner plate (20), the hot runner system (1) comprises a splitter plate (11), a main flow pipe (2) is arranged on the upper surface of the splitter plate (11), a plurality of sprue jets (3) are arranged on the lower surface of the splitter plate (11), and the sprue (3) is communicated with the main flow pipe (2) through the splitter plate, the glue outlet (31) of the pump nozzle (3) corresponds to a glue inlet point (101) of a formed storage battery cover (100), and the glue inlet point (101) is positioned in the middle of the storage battery cover (100).
2. The battery cover hot runner plastic mold structure of claim 1, wherein: a main flow channel (111) communicated with the main flow pipe (2) is arranged in the flow distribution plate (11), a plurality of branch flow channels (112) are further arranged on the flow distribution plate (11), the branch flow channels (112) extend towards a plurality of squirt nozzles (3) close to the end points by taking the left end point and the right end point of the main flow channel (111) as starting points, and the squirt nozzles (3) are communicated with the branch flow channels (112).
3. The battery cover hot runner plastic mold structure of claim 2, wherein: the main flow channel (111) is arranged along the horizontal direction, and the connecting position of the main flow channel and the main flow pipe (2) is located in the middle of the main flow channel.
4. The battery cover hot runner plastic mold structure of claim 1, 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).
5. The battery cover hot runner plastic mold structure of claim 1, wherein: be provided with holding ring (4) on front mould fixed plate (10), sprue (2) are connected with holding ring (4) laminating, holding ring (4) and sprue (2) intercommunication.
6. The battery cover hot runner plastic mold structure of claim 2, wherein: the branch flow passages (112) have the same caliber and the same length.
7. The battery cover hot runner plastic mold structure of claim 6, wherein: heating elements are arranged around the flow distribution plate (11) and the squirt nozzle (3).
8. The battery cover hot runner plastic mold structure of claim 6, wherein: and a heat insulation column (5) is arranged between the flow distribution plate (11) and the hot runner plate (20).
9. The battery cover hot runner plastic mold structure of claim 1, wherein: the hot runner system (1) further comprises a hot runner junction box (6) fixed on the side edge of the front mold fixing plate (10), and the hot runner junction box (6) is used for being matched with an external temperature control box to control the temperature of each position of the hot runner system (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921022740.XU CN210362280U (en) | 2019-07-03 | 2019-07-03 | Battery cover hot runner plastic mould structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921022740.XU CN210362280U (en) | 2019-07-03 | 2019-07-03 | Battery cover hot runner plastic mould structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210362280U true CN210362280U (en) | 2020-04-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921022740.XU Active CN210362280U (en) | 2019-07-03 | 2019-07-03 | Battery cover hot runner plastic mould structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210362280U (en) |
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2019
- 2019-07-03 CN CN201921022740.XU patent/CN210362280U/en active Active
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Effective date of registration: 20230802 Address after: Gao Lou Zhen Hong Di Cun, Rui'an City, Wenzhou City, Zhejiang Province, 325200 Patentee after: Wang Conghai Address before: 313100 no.179-300, Chizhou Avenue, Huaxi Industrial functional zone, Huaxi street, Changxing County, Huzhou City, Zhejiang Province Patentee before: YOUNAIFU (CHANGXING) AUTOMATION EQUIPMENT Co.,Ltd. Effective date of registration: 20230802 Address after: 201800 Area B, Floor 1, Building 7, No. 1650 and 1682, Beihe Road, Jiading Industrial Zone, Jiading District, Shanghai Patentee after: Shanghai Shicai Electronics Co.,Ltd. Address before: Gao Lou Zhen Hong Di Cun, Rui'an City, Wenzhou City, Zhejiang Province, 325200 Patentee before: Wang Conghai |