CN205310692U - Railway bearing injection mold for engineering plastic retainer - Google Patents
Railway bearing injection mold for engineering plastic retainer Download PDFInfo
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- CN205310692U CN205310692U CN201521126417.9U CN201521126417U CN205310692U CN 205310692 U CN205310692 U CN 205310692U CN 201521126417 U CN201521126417 U CN 201521126417U CN 205310692 U CN205310692 U CN 205310692U
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Abstract
Railway bearing injection mold for engineering plastic retainer, including the cover half clamp plate, movable mould clamp plate and establish the cover half fixing base between the two, the movable mould fixing base, movable mould backing plate and supporting seat, inlay respectively in cover half fixing base and the movable mould fixing base and be equipped with fixed mold cover and movable mold cover, fixed mold overlaps the embedded fixed mold that is equipped with, movable mold overlaps the embedded movable mold that is equipped with, the movable mold outer peripheral face, fixed mold overlaps the inner peripheral surface, the work die cavity of holder has been constituted under the fixed mold between terminal surface and the movable mold cover up end, be equipped with the ejector pin in the movable mold cover, be equipped with the notes material hole of lining up among cover half clamp plate and the fixed mold, annotate the downthehole runner cover that is equipped with of material, embedded push pedal and the fixed plate of being equipped with of supporting seat is equipped with on and draws the material pole, is equipped with the support column between movable mould backing plate and the movable mould clamp plate. The utility model discloses a mould adopts the whole structure of loosing core of thorough core, has reached the purpose that the holder product does not have the burr, and is efficient, with low costs.
Description
Technical field
This utility model relates to technical field of mold, is specifically related to a kind of railway bearing engineering plastics cage injection mold.
Background technology
Passenger train is raised speed and quasi high-speed to high speed development by Ministry of Railways's Eleventh Five-Year Plan, as the key of technological development, is the field of primary study and exploitation. Owing to being subject to design and develop the restriction of the factors such as ability and manufacture level, current China Express Railway passenger vehicle self-contained bearing is whole dependence on import also, seriously constrain the normal development of domestic high-speed railway passenger industry. For this, it is necessary from aspects such as design analysis, processing and manufacturing, detection tests, high-speed railway passenger bearing is carried out case study and exploitation, to improve the ability to develop independently of domestic Rolling Stock Bearing, grasp kind of bearings in the key technology developed and in industrialization production, it is achieved the production domesticization of high-speed railway passenger bearing is supporting.
The structure of bearing includes inner ring, outer ring and some steel balls, steel ball is between inner ring and outer ring, these steel balls are separated from one another by the retainer of an annular, existing retainer is generally adopted engineering plastics integrated injection molding, existing engineering plastics cage, it is all from Germany's import all the time, or domestic employing bronze be blank, carry out the mode of production of the machining of inefficient high cost, under such form, design the technology being undertaken efficiently producing by mould particularly significant with regard to what show.
Utility model content
This utility model is in order to solve above-mentioned technical problem, provide a kind of railway bearing engineering plastics cage injection mold, utilize this mould to carry out Shooting Technique and manufacture the bulk production of retainer, solve conventional dependence die inlet or employing is inefficient, the problem of the machining mode of high cost.
This utility model is the technical scheme that solution the problems referred to above adopt: railway bearing engineering plastics cage injection mold, including cover half pressing plate, dynamic model pressing plate and be sequentially arranged at therebetween determine model fixing seat, dynamic model fixing seat, dynamic model backing plate and supporting seat, determine the cylindrical hole that the center within model fixing seat and dynamic model fixing seat is provided with through, determine in model fixing seat and dynamic model fixing seat, to be embedded with fixed mold set and movable model core retainer plate respectively, it is embedded with fixed mold in fixed mold set, movable model core retainer plate is embedded is provided with dynamic mould core, dynamic mould core outer peripheral face, fixed mold set inner peripheral surface, fixed mold lower surface and dynamic mould core put the work die cavity constituting retainer between end face, movable model core retainer plate is provided with the push rod being correspondingly arranged with the cavity bottom that works,The material hole being provided with through in cover half pressing plate and fixed mold, and the lower surface of fixed mold be provided with through material hole and work die cavity groove, be provided with sprue bush in material hole; The center of supporting seat is provided with cylindrical hole, is embedded with push pedal and the fixing plate being positioned in push pedal in supporting seat, and fixing plate is provided with the sprue puller stretching into material hole, is vertically connected with the support column wearing push pedal and fixing plate between dynamic model backing plate and dynamic model pressing plate.
Further, fixed mold set is made up of the first fixed mold set and the second fixed mold set, first fixed mold set is internal is provided with the convex shoulder for accepting fixed mold, second fixed mold overlaps between the first fixed mold set and movable model core retainer plate, determining the cooling water channel being communicated with on model fixing seat to the first fixed mold set and the second fixed mold set outer peripheral face, the outer peripheral face of the first fixed mold set and the second fixed mold set is provided with O-ring seal.
In this utility model, the upper surface of movable model core retainer plate is provided with the sub-runner through with the die cavity that works, the cross section of sub-runner is U-shaped, sub-runner can make the flow direction of plastic melt obtain smooth conversion, and it is full of work die cavity as early as possible, avoid plastic melt reduction of temperature and pressure in flow process, make balanced being assigned in work die cavity of plastic melt.
In this utility model, dynamic model backing plate is communicated with to the cooling water channel within dynamic mould core.
In this utility model, fixed mold upper surface is provided with O-ring seal, and the lower surface of fixed mold is provided with stretches into loosing core of work die cavity, and the draw taper loosed core is 2 °.
Beneficial effect: this utility model provides a kind of retainer injection mold, after injection moulding has cooled down, carry out die sinking, fixed mold, the first fixed mold set and the second fixed mold set move upwardly together, after mould is opened, and sprue coagulates material under the effect of sprue puller, it is drawn out from sprue bush, now push rod moves up, retainer product with solidifying expect together with outside launch mode, this mould adopts the structure that thorough core entirety is loosed core, reach the carrot-free purpose of retainer product, mould structure is simple, and efficiency is high, and cost is low; Utilize the retainer constant product quality of this mold injection molding, reach various sizes line position accuracy tolerance requirement.
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present utility model;
Fig. 2 is the enlarged diagram indicating A in Fig. 1;
Fig. 3 is the schematic diagram of fixed mold;
Fig. 4 is the schematic diagram of the first fixed mold set.
Accompanying drawing labelling: 1, cover half pressing plate, 2, determine model fixing seat, 3, dynamic model fixing seat, 4, dynamic model backing plate, 5, supporting seat, 6, dynamic model pressing plate, 7, fixed mold, 8, dynamic mould core, the 9, first fixed mold set, 10, the second fixed mold set, 11, movable model core retainer plate, 12, work die cavity, 13, material hole, 14, sprue bush, 15, groove, 16, push pedal, 17, fixing plate, 18, push rod, 19, support column, 20, convex shoulder, 21, cooling water channel, 22, O-ring seal, 23, sprue puller, 24, sub-runner, 25, loose core.
Detailed description of the invention
Railway bearing engineering plastics cage injection mold, as shown in Figure 1, including cover half pressing plate 1, dynamic model pressing plate 6 and be sequentially arranged at therebetween determine model fixing seat 2, dynamic model fixing seat 3, dynamic model backing plate 4 and supporting seat 5, determine the cylindrical hole that the center within model fixing seat 2 and dynamic model fixing seat 3 is provided with through, determine in model fixing seat 2 and dynamic model fixing seat 3, to be embedded with fixed mold set and movable model core retainer plate 11 respectively, it is embedded with fixed mold 7 in fixed mold set, dynamic mould core 8 it is embedded with in movable model core retainer plate 11, dynamic mould core 8 outer peripheral face, fixed mold set inner peripheral surface, the work die cavity 12 of retainer is constituted between fixed mold 7 lower surface and movable model core retainer plate 11 upper surface, movable model core retainer plate 11 is provided with the die cavity 12 that works bottom the push rod 18 that is correspondingly arranged,The material hole 13 being provided with through in cover half pressing plate 1 and fixed mold 7, and the lower surface of fixed mold 7 is provided with through material hole 13 and the groove 15 of work die cavity 12, is provided with sprue bush 14 in material hole 13; The center of supporting seat 5 is provided with cylindrical hole, push pedal 16 and the fixing plate 17 being positioned in push pedal 16 it is embedded with in supporting seat 5, fixing plate 17 is provided with the sprue puller 23 stretching into material hole 13, the support column 19 wearing push pedal 16 and fixing plate 17 it is vertically connected with between dynamic model backing plate 4 and dynamic model pressing plate 6, sprue puller 23 is broken stub bar when being die sinking and is used, it is to avoid when drawing stub bar, part and stub bar depart from fixed mold 7.
In this utility model, being vertically connected with support column 19 between dynamic model backing plate 4 and dynamic model pressing plate 6, dynamic model backing plate 4 plays adjustment mould gross thickness, to adapt to the injection mold effect according to thickness requirement; Support column 19 plays when proof strength, reduces the thickness of dynamic model backing plate 4.
When carrying out injection moulding after matched moulds, plastic melt is directly entered work die cavity 12 by sprue bush 14, and flow process is short, and charging filling is very fast, and flow resistance is little, makes the casting system simple in construction of this mould, it is easy to manufacture; As depicted in figs. 1 and 2, the upper surface of movable model core retainer plate 11 is provided with the sub-runner 24 through with the die cavity 12 that works, and the cross section of sub-runner 24 is U-shaped, it is easy to machine-shaping, and the heat loss of plastic melt and flow resistance smaller.
In actual production process, injection molding machine nozzle and the docking of sprue bush 14 entrance, dynamic mould core 8 center is provided with the through hole being correspondingly arranged with material hole 13, sprue puller 23 is through in this through hole, for making the plastic melt of normal temperature be operated die cavity 12, sprue puller 23 upper end is not concordant with the through hole upper end of dynamic mould core 8, makes the through hole top of dynamic mould core 8 form the chamber receiving cold burden, it is prevented that cold burden entrance work die cavity 12.
In conjunction with Fig. 1 and Fig. 3, fixed mold 7 upper surface is provided with two different O-ring seals of internal diameter, fixed mold 7 lower surface be provided with stretch into work die cavity 12 loose core 25, loose core 25 draw taper be 2 °.
Wherein, fixed mold set is made up of the first fixed mold set 9 and the second fixed mold set 10, second fixed mold set 10 overlaps between 9 and movable model core retainer plate 11 at the first fixed mold, determine model fixing seat 2 is communicated with to the first fixed mold overlap 9 and second fixed mold overlap the cooling water channel of 10 outer peripheral faces, dynamic model backing plate 4 is communicated with to the cooling water channel within dynamic mould core 8, the outer peripheral face of the first fixed mold set 9 and the second fixed mold set 10 is provided with O-ring seal, as shown in Figure 4, first fixed mold set 9 is internal is provided with the convex shoulder 20 for accepting fixed mold 7, it is 9.38 ° that convex shoulder 20 is positioned at the draw taper of work die cavity 12 internal face, first fixed mold overlaps the outer peripheral face on 9 tops and is provided with O-ring seal. in this utility model, determining the mode that have employed dual-layer cycle cooling in model fixing seat 2, and coordinating the O-ring seal of employing, it is prevented that cooling water penetrates into die cavity, forms the Forming Quality of retainer product, this type of cooling, make this mould structure simple, this mould also can be made to obtain good cooling effect, it is ensured that product quality, shorten molding cycle, utilize this mould can carry out Shooting Technique and manufacture the bulk production of retainer.
Claims (5)
1. railway bearing engineering plastics cage injection mold, it is characterized in that: include cover half pressing plate (1), dynamic model pressing plate (6) and be sequentially arranged at therebetween determine model fixing seat (2), dynamic model fixing seat (3), dynamic model backing plate (4) and supporting seat (5), determine the cylindrical hole that the center of model fixing seat (2) and dynamic model fixing seat (3) inside is provided with through, determine in model fixing seat (2) and dynamic model fixing seat (3), to be embedded with fixed mold set and movable model core retainer plate (11) respectively, it is embedded with fixed mold (7) in fixed mold set, dynamic mould core (8) it is embedded with in movable model core retainer plate (11), dynamic mould core (8) outer peripheral face, fixed mold set inner peripheral surface, the work die cavity (12) of retainer is constituted between fixed mold (7) lower surface and movable model core retainer plate (11) upper surface, movable model core retainer plate (11) is provided with the push rod (18) being correspondingly arranged with the die cavity that works (12) bottom,The material hole (13) being provided with through in cover half pressing plate (1) and fixed mold (7), and the lower surface of fixed mold (7) be provided with through material hole (13) and work die cavity (12) groove (15), be provided with sprue bush (14) in material hole (13); The center of supporting seat (5) is provided with cylindrical hole, push pedal (16) and the fixing plate (17) being positioned in push pedal (16) it is embedded with in supporting seat (5), fixing plate (17) is provided with the sprue puller (23) stretching into material hole (13), is vertically connected with the support column (19) wearing push pedal (16) and fixing plate (17) between dynamic model backing plate (4) and dynamic model pressing plate (6).
2. railway bearing engineering plastics cage injection mold according to claim 1, it is characterized in that: fixed mold set is made up of the first fixed mold set (9) and the second fixed mold set (10), first fixed mold set (9) is internal is provided with the convex shoulder (20) for accepting fixed mold (7), second fixed mold set (10) is positioned between the first fixed mold set (9) and movable model core retainer plate (11), determine the cooling water channel being communicated with on model fixing seat (2) to the first fixed mold set (9) and the second fixed mold set (10) outer peripheral face, the outer peripheral face of the first fixed mold set (9) and the second fixed mold set (10) is provided with O-ring seal.
3. railway bearing engineering plastics cage injection mold according to claim 1, it is characterised in that: the upper surface of movable model core retainer plate (11) is provided with the sub-runner (24) through with the die cavity that works (12), and the cross section of sub-runner (24) is U-shaped.
4. railway bearing engineering plastics cage injection mold according to claim 1, it is characterised in that: dynamic model backing plate (4) is communicated with the cooling water channel to dynamic mould core (8) inside.
5. railway bearing engineering plastics cage injection mold according to claim 1, it is characterized in that: fixed mold (7) upper surface is provided with O-ring seal, the lower surface of fixed mold (7) is provided with loose core (25) stretching into work die cavity (12), and the draw taper of loose core (25) is 2 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521126417.9U CN205310692U (en) | 2015-12-30 | 2015-12-30 | Railway bearing injection mold for engineering plastic retainer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521126417.9U CN205310692U (en) | 2015-12-30 | 2015-12-30 | Railway bearing injection mold for engineering plastic retainer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205310692U true CN205310692U (en) | 2016-06-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521126417.9U Active CN205310692U (en) | 2015-12-30 | 2015-12-30 | Railway bearing injection mold for engineering plastic retainer |
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| Country | Link |
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| CN (1) | CN205310692U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109228149A (en) * | 2018-07-23 | 2019-01-18 | 洛阳轴承研究所有限公司 | A kind of plastic cage processing mold and its retainer of processing |
-
2015
- 2015-12-30 CN CN201521126417.9U patent/CN205310692U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109228149A (en) * | 2018-07-23 | 2019-01-18 | 洛阳轴承研究所有限公司 | A kind of plastic cage processing mold and its retainer of processing |
| CN109228149B (en) * | 2018-07-23 | 2020-08-11 | 洛阳轴承研究所有限公司 | Plastic retainer processing die and retainer processed by same |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 471000 Hengshan Road, Jianxi District, Luoyang, Henan Province, No. 99 Patentee after: Zhong Shi Luoyang Mechanical Engineering Technology Co., Ltd. Address before: 471000 Hengshan Road, Jianxi District, Luoyang, Henan Province, No. 99 Patentee before: Zhongshi Luoyang Engineering Plastic Co., Ltd. |
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| CP01 | Change in the name or title of a patent holder |