CN201058353Y - Synchronous liquid bulge forming device for double-layer metallic heat insulation container - Google Patents
Synchronous liquid bulge forming device for double-layer metallic heat insulation container Download PDFInfo
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- CN201058353Y CN201058353Y CNU2007200541192U CN200720054119U CN201058353Y CN 201058353 Y CN201058353 Y CN 201058353Y CN U2007200541192 U CNU2007200541192 U CN U2007200541192U CN 200720054119 U CN200720054119 U CN 200720054119U CN 201058353 Y CN201058353 Y CN 201058353Y
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- container
- double
- heat preservation
- inner bag
- die cavity
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Abstract
The utility model relates to a synchronized hydro-bulging molding device for double-deck metallic heat preservation container, which comprises a top die carrier, a self-lock die set, a die holder which mounts the self-lock die set, a bottom die carrier which fixes the die holder and a synchronized hydraulic channel; according to the theory of hydro-bulging molding and the synchronizing hydro-bulging molding procedure, the hydraulic pressure in the first hydraulic channel forms a hydraulic support for the inner liner of the double-deck metallic heat preservation container; the hydraulic pressure in the second hydraulic channel which has the same hydraulic pressure as that of the first channel forms a hydro-bulging molding on the shell of the double-deck metallic heat preservation container, and relief patterns or characters can be molded towards the recessed cavity of the shell of the double-deck metallic insulating container; thus the double-deck metallic insulating container with the relief patterns or characters can be molded once by hydro-bulging. The utility model has the advantages of simple die structure, convenient molding and processing, one-time molding of relief patterns or characters on the container shell; and is suitable for processing of the double-deck metallic heat preservation container that requires molding of relief patterns or characters, especially for the processing of the special shaped container.
Description
Technical field
The utility model relates to a kind of double-layer metal heat preservation container synchronization liquid expansion forming device.
Background technology
Chinese invention patent application 200610122809.7 discloses a kind of hydraulic expansion forming process, adopt metal tube as prefabricated component, pack in the mould metal tube and the sealed metal tube two ends, then highly pressurised liquid is charged in the pipe, metal pipe-wall is subjected to compression swelling at in-mold molding; Owing to adopt metal tube as moulding prefabricated,, improved production efficiency as long as, can save the loaded down with trivial details technology that traditional handicraft repeatedly stretches and anneals raw material with using after the sheet stock material welding; Yet this hydraulic expansion forming process is handled powerless to the processing of special-shaped double-layer metal heat preservation containers such as cydariform, sphere; If embossing pattern or literal are set on the housing of special-shaped double-layer metal heat preservation container, traditional method is to carry out the multiple tracks mold pressing procedure to the housing of container, then, oral area is being assembled and welded to the housing of container and inner bag after the moulding separately separately again, as shown in Figure 3, though this processing method assembling is simple, but because housing and inner bag are assemblings again after the independent moulding, if inner bag just can't be assembled too greatly, so the space of vessel insulation is too big, the capacity of container inner bag is too little, waste of material is too many, and product is very little in market competition.
Summary of the invention
The purpose of this utility model is at above-mentioned existing problems, provide that a kind of mould structure is simple, processing and forming is convenient, to the double-layer metal heat preservation container synchronization liquid expansion forming device of container casing one-shot forming embossing pattern or literal.
Operation principle of the present utility model: utilize liquid to be expanded into the type principle, adopt the synchronization liquid expansion molding procedure, by the hydraulic pressure of first hydraulic channel inner bag of double-layer metal heat preservation container being formed hydraulic pressure supports, by with the hydraulic pressure of second hydraulic channel of the hydraulic pressure equipressure of first hydraulic channel housing of double-layer metal heat preservation container being formed the hydraulic expanding-forming of the cavity of plastic embossing pattern on concave die cavity or literal, thereby the disposable liquid type of being expanded into goes out to have the double-layer metal heat preservation container of embossing pattern or literal.
Synchronization liquid expansion forming device of the present utility model comprises top mold frame, self-locking mould, sets up the die holder of self-locking mould, the following mould bases that sets firmly die holder and synchronous hydraulic passage; This self-locking mould comprises clamp ring, concave die cavity, centring ring, retainer plate and die cavity elastic force deploying device; Clamp ring is fixed in top mold frame, and clamp ring is taper fit between the two with concave die cavity and is connected; Concave die cavity has the die unit of the cavity of plastic embossing pattern or literal to constitute by at least one group of its die cavity madial wall, and the die unit is reserved a bleeder port at least; Centring ring is arranged at container finish, and the top of centring ring can be supportted and is connected to top mold frame; Die cavity elastic force deploying device connects the die unit; This die holder comprises pedestal, core and container inner bag protection seat; Core axially is set in the pedestal and is fixed in down on the mould bases, and container inner bag protection seat axially is set in the core; This synchronous hydraulic passage comprises first hydraulic channel and second hydraulic channel; first hydraulic channel by first control valve via the through hole of the inlet of top mold frame and centring ring the space of connection container inner bag, second hydraulic channel is by second control valve space of the thermal insulation layer that connection container inner bag and container casing are constituted via the tap hole of the through hole of the inlet of mould bases down, core, container inner bag protection seat successively.
The utility model, more accurate for making container location, the vallecular cavity coupling of centring ring and top mold frame and supportting connects.
The utility model; between centring ring and container finish, be provided with sealing ring; the sealing circle adopts polyurethane material; material hardness is generally 75A; it is the tight fit of 0.2～0.4mm that sealing ring and container finish have the magnitude of interference; the effectively sealing of protection container finish, this centring ring protects the screw thread of container finish and container finish indeformable simultaneously.
The utility model is provided with sealing gasket between container inner bag protection seat and core, the sealing cushion material adopts polyurethane material, and material hardness is generally 75A.
The utility model, die cavity elastic force deploying device are that spring muscle cross section is the spring of rectangle, so that bigger elastic force to be provided, are convenient to the demoulding.
The utility model, clamp ring is spent with tapering α=12～15 that concave die cavity cooperates between the two, and the tapering of best fit is 13 degree, and the mode of its best taper fit is the circular cone fit system.
The utility model, for container casing is thin-walled cydariform or spherical special-shaped container, because the housing top and the bottom are very big in the distortion of butt welding place, and the bonding wire of butt welding back casing top and the bottom because internal stress effect and case material are thin partially, cause sealing wire depression, polishing bonding wire difficulty easily, influence problems such as outward appearance and yield rate are low, its container casing preferably is divided into container casing top and container casing bottom, and respectively reserves the cylindrical wall of 5～10mm at the butt welding end of container casing top and container casing bottom.
The beneficial effects of the utility model are:
1), synchronization liquid expansion moulding: the hydraulic pressure of first hydraulic channel forms constant hydraulic pressure to the container inner bag and supports, and control container inner bag is indeformable; By under the restriction of concave die cavity, container casing being formed constant voltage and the container casing plastic embossing pattern on concave die cavity or the hydraulic expanding-forming of the cavity of literal with the hydraulic pressure of second hydraulic channel of the hydraulic pressure equipressure of first hydraulic channel; This is substantive distinguishing features of the present utility model and progress, and simultaneously, the liquid type of being expanded into of the present utility model can mold required shape of various client and exquisite pattern, literal, and the practicality and the artistry that have merged product are one;
2), liquid is expanded into the one-shot forming operation of type embossing pattern or literal, reduced the complex process operation of traditional method, not only enhances productivity, and also reduced percent defective, can also save processing cost greatly;
3), at special-shaped double-layer metal heat preservation container, the utility model can accomplish that the space of thermal insulation layer drops to minimum, effectively increases the plot ratio of container inner bag, and keeps the vacuum heat-insulation effect constant;
4), the mould self-locking: the clamp ring that is fixed in top mold frame moves down in company with top mold frame, through clamp ring and concave die cavity taper fit between the two, the die unit matched moulds that clamp ring promote to separate and auto lock;
5), automatic demoulding: when the liquid speed of first control valve, second control valve is zero and workpiece when molded, shed hydraulic pressure, the clamp ring that is fixed in top mold frame is in company with moving on the top mold frame, and the die unit is automatic demoulding via the elastic-restoring force of spring;
6), concave die cavity is earlier modified for hardness HB230 degree carries out fine finishining, and surfaces nitrided to it be that hardness HRC58～60 are spent, line excision formings again; Can significantly reduce the mold cavity distortion of line cutting back like this, avoid bulging after workpiece spue line appears, the rate of reducing the number of rejects and seconds greatly.
Thereby, the utlity model has that mould structure is simple, processing and forming is convenient, to the advantage of container casing one-shot forming embossing pattern or literal, be applicable to the processing of the especially special-shaped container of double-layer metal heat preservation container that needs moulding embossing pattern or literal.
Following embodiment is further described the utility model in conjunction with the accompanying drawings.
Description of drawings
Fig. 1 is that the mould of an embodiment of synchronization liquid expansion forming device of the present utility model is at the structural representation of die opening state;
Fig. 2 is that the mould of an embodiment of synchronization liquid expansion forming device of the present utility model is at the structural representation of matched moulds state;
Fig. 3 is the housing of double-layer metal heat preservation container of prior art and inner bag at the structural representation of assembling again after the moulding separately separately;
Fig. 4 is the structural representation of a kind of double-layer metal heat preservation container of the present utility model;
Fig. 5, Fig. 6 are the structural representations of another kind of double-layer metal heat preservation container of the present utility model, and wherein, Fig. 5 is the structural representation when liquid is not expanded into type, and Fig. 6 is the structural representation after liquid is expanded into type.
Among the figure, 1; top mold frame, 2; following mould bases; 3; clamp ring, 4; concave die cavity, 41; 42; the die unit; 43; bleeder port, 5; centring ring, 51; the through hole of centring ring; 6; retainer plate, 7; die cavity elastic force deploying device, 8; pedestal; 9; core, 91; the through hole of core, 10; container inner bag protection seat; 11; the container inner bag, 12; container casing, 121; container casing top; 122; the container casing bottom, 13; thermal insulation layer, 14; container finish; 15; the vallecular cavity of top mold frame; 16; sealing ring, 17; sealing gasket, 18; 19; the tap hole of container inner bag protection seat; 20; cylindrical wall, 21; the bulging compensating band.
Y
1, first hydraulic channel, Y
2, second hydraulic channel, F
1, first control valve, F
2, second control valve, the inlet of A, top mold frame, B, the following inlet of mould bases, C
1, the container inner bag the space, C
2, thermal insulation layer the space, α, tapering.
The specific embodiment
Embodiment: a kind of double-layer metal heat preservation container synchronization liquid expansion forming device
With reference to Fig. 1, Fig. 2, Fig. 4, Fig. 5 and Fig. 6, present embodiment is a kind of double-layer metal heat preservation container synchronization liquid expansion forming device, comprises top mold frame 1, self-locking mould, sets up the die holder of self-locking mould, the following mould bases 2 that sets firmly die holder and synchronous hydraulic passage; This self-locking mould comprises clamp ring 3, concave die cavity 4, centring ring 5, retainer plate 6 and die cavity elastic force deploying device 7; Clamp ring is fixed in top mold frame, and clamp ring is taper fit between the two with concave die cavity and is connected; Concave die cavity has the die unit 41,42 of the cavity of plastic embossing pattern or literal to constitute by at least one group of its die cavity madial wall, and the die unit is reserved a bleeder port 43 at least; Centring ring is arranged at container finish 14, and the top of centring ring can be supportted and is connected to top mold frame; Die cavity elastic force deploying device connects the die unit; This die holder comprises pedestal 8, core 9 and container inner bag protection seat 10; Core axially is set in the pedestal and is fixed in down on the mould bases, and container inner bag protection seat axially is set in the core; This synchronous hydraulic passage comprises the first hydraulic channel Y
1With the second hydraulic channel Y
2, first hydraulic channel is by the first control valve F
1Via the through hole 51 of the inlet A of top mold frame and centring ring and the space C of connection container inner bag
1, second hydraulic channel is by the second control valve F
2The space C of the thermal insulation layer 13 that connection container inner bag 11 and container casing 12 are constituted via the tap hole 18,19 of the through hole 91 of the inlet B of following mould bases, core, container inner bag protection seat successively
2For making the container location more accurate, support connects centring ring 5 with vallecular cavity 15 couplings of top mold frame; Be provided with sealing ring 16 between centring ring 5 and container finish 14, the sealing circle adopts polyurethane material, effectively protects the sealing of container finish, and the screw thread of this centring ring protection container finish and container finish is indeformable; Between container inner bag protection seat 10 and core 9, be provided with sealing gasket 17; This die cavity elastic force deploying device 7 is the spring of rectangle for spring muscle cross section, so that bigger elastic force to be provided, is convenient to the demoulding; Clamp ring cooperates between the two with concave die cavity, and the employing tapering is that the circular cone of α=13 degree cooperates.
The forming method of present embodiment with reference to Fig. 1, Fig. 2, comprises container positioning process, mold-locked operation, synchronization liquid expansion molding procedure and automatic demoulding operation; Wherein:
1), container positioning process: after the moulding of container inner bag, the moulding of container casing top, container casing top and container inner bag are in container finish top end sealing welding, form the space of container inner bag and the space of the thermal insulation layer that container inner bag and container casing are constituted, again by the centring ring fixed container;
2), mold-locked operation: the clamp ring that is fixed in top mold frame moves down in company with top mold frame, and through clamp ring and concave die cavity taper fit between the two, clamp ring promotes the die unit matched moulds that separates and locks;
3), synchronization liquid expansion molding procedure: the first hydraulic channel Y of the identical hydraulic pressure of Synchronization Control
1The first control valve F
1With the second hydraulic channel Y
2The second control valve F
2Liquid speed, the space C of the thermal insulation layer that is constituted via liquid-filled full the container inner bag and the container casing of second control valve
2Required time ratio is via the space C of the liquid-filled full container inner bag of first control valve
10.5～5 second required time lag; The hydraulic pressure of first control valve forms constant hydraulic pressure to the container inner bag and supports, and control container inner bag is indeformable; By under the restriction of concave die cavity container casing being formed constant voltage and the container casing plastic embossing pattern on concave die cavity or the hydraulic expanding-forming of the cavity of literal with the hydraulic pressure of second control valve of the hydraulic pressure equipressure of first control valve, constant hydraulic pressure is a definite value in 60～80MPa interval.
4), automatic demoulding operation: when the liquid speed of first control valve, second control valve is zero and workpiece when molded, shed hydraulic pressure, the clamp ring that is fixed in top mold frame is in company with moving on the top mold frame, and the die unit is automatic demoulding via the elastic-restoring force of die cavity elastic force deploying device.
Manufacturing of the present utility model: with reference to Fig. 4, for container casing is thin-walled cydariform or spherical special-shaped container,, and the bonding wire of the butt welding back casing top and the bottom reason that owing to internal stress effect and case material partially approach very big in the distortion of butt welding place at the housing top and the bottom, cause sealing wire depression, polishing bonding wire difficulty easily, influence problems such as outward appearance and yield rate are low, its container casing preferably is divided into container casing top 121 and container casing bottom 122, respectively reserves the cylindrical wall 20 of 5～10mm at the butt welding end of container casing top and container casing bottom; With reference to Fig. 5, Fig. 6, for the bigger container of housing bulging, reserve bulging compensating band 21 at the housing low side, this bulging compensating band can compensate the bulging amount when the housing bulging, improve the housing bulge coefficient greatly.
The processing method of concave die cavity of the present utility model: concave die cavity is earlier modified for hardness HB230 degree carries out fine finishining, and surfaces nitrided to it be that hardness HRC58～60 are spent, line excision formings again.Can significantly reduce the mold cavity distortion of line cutting back like this, avoid bulging after workpiece spue line appears, the rate of reducing the number of rejects and seconds greatly.
Claims (7)
1. double-layer metal heat preservation container synchronization liquid expansion forming device is characterized in that: comprise top mold frame (1), self-locking mould, set up the self-locking mould die holder, set firmly the following mould bases (2) and the synchronous hydraulic passage of die holder;
Described self-locking mould comprises clamp ring (3), concave die cavity (4), centring ring (5), retainer plate (6) and die cavity elastic force deploying device (7); Described clamp ring is fixed in top mold frame, and described clamp ring is taper fit between the two with concave die cavity and is connected; Described concave die cavity has the die unit (41,42) of the cavity of plastic embossing pattern or literal to constitute by at least one group of its die cavity madial wall, and described die unit is reserved a bleeder port (43) at least; Described centring ring is arranged at container finish (14), and the top of described centring ring can be supportted and is connected to described top mold frame; Described die cavity elastic force deploying device connects the die unit;
Described die holder comprises pedestal (8), core (9) and container inner bag protection seat (10); Described core axially is set in the pedestal and is fixed in down on the mould bases, and described container inner bag protection seat axially is set in the core;
Described synchronous hydraulic passage comprises the first hydraulic channel (Y
1) and the second hydraulic channel (Y
2), described first hydraulic channel is by the first control valve (F
1) via the through hole (51) of the inlet (A) of top mold frame and centring ring and the space (C of connection container inner bag
1), described second hydraulic channel is by the second control valve (F
2) space (C of the thermal insulation layer (13) that connection container inner bag (11) and container casing (12) are constituted via the tap hole (18,19) of the through hole (91) of the inlet (B) of following mould bases, core, container inner bag protection seat successively
2).
2. double-layer metal heat preservation container synchronization liquid expansion forming device according to claim 1 is characterized in that: support connects described centring ring (5) with vallecular cavity (15) coupling of top mold frame.
3. double-layer metal heat preservation container synchronization liquid expansion forming device according to claim 1 and 2 is characterized in that: be provided with sealing ring (16) between described centring ring (5) and container finish (14).
4. double-layer metal heat preservation container synchronization liquid expansion forming device according to claim 3 is characterized in that: be provided with sealing gasket (17) between described container inner bag protection seat (10) and core (9).
5. double-layer metal heat preservation container synchronization liquid expansion forming device according to claim 4 is characterized in that: described die cavity elastic force deploying device (7) is the spring of rectangle for spring muscle cross section.
6. double-layer metal heat preservation container synchronization liquid expansion forming method according to claim 5 is characterized in that: described clamp ring is spent with tapering α=12～15 that concave die cavity cooperates between the two.
7. double-layer metal heat preservation container synchronization liquid expansion forming method according to claim 6, it is characterized in that: described container casing is thin-walled cydariform or sphere, its container casing is capacitance divider housing top (121) and container casing bottom (122), and the butt welding end of described container casing top and container casing bottom is respectively reserved the cylindrical wall (20) of 5～10mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200541192U CN201058353Y (en) | 2007-07-11 | 2007-07-11 | Synchronous liquid bulge forming device for double-layer metallic heat insulation container |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200541192U CN201058353Y (en) | 2007-07-11 | 2007-07-11 | Synchronous liquid bulge forming device for double-layer metallic heat insulation container |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201058353Y true CN201058353Y (en) | 2008-05-14 |
Family
ID=39406806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200541192U Expired - Lifetime CN201058353Y (en) | 2007-07-11 | 2007-07-11 | Synchronous liquid bulge forming device for double-layer metallic heat insulation container |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201058353Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102886458A (en) * | 2012-09-24 | 2013-01-23 | 重庆科技学院 | Overall composite inner high-pressure flow type bulging process for car drive axle |
| CN107617683A (en) * | 2017-11-03 | 2018-01-23 | 郜宇航 | A kind of thermos cup shaping dies and its forming technology |
| CN107900617A (en) * | 2017-11-15 | 2018-04-13 | 深圳市金宝盈文化股份有限公司 | A kind of bracelet turgor pressure manufacture craft |
| CN114011943A (en) * | 2020-10-30 | 2022-02-08 | 哈尔滨哈飞航空工业有限责任公司 | Die for bending and bulging part with negative angle |
-
2007
- 2007-07-11 CN CNU2007200541192U patent/CN201058353Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102886458A (en) * | 2012-09-24 | 2013-01-23 | 重庆科技学院 | Overall composite inner high-pressure flow type bulging process for car drive axle |
| CN102886458B (en) * | 2012-09-24 | 2014-09-24 | 重庆科技学院 | Overall composite inner high-pressure flow type bulging process for car drive axle |
| CN107617683A (en) * | 2017-11-03 | 2018-01-23 | 郜宇航 | A kind of thermos cup shaping dies and its forming technology |
| CN107900617A (en) * | 2017-11-15 | 2018-04-13 | 深圳市金宝盈文化股份有限公司 | A kind of bracelet turgor pressure manufacture craft |
| CN107900617B (en) * | 2017-11-15 | 2019-08-30 | 深圳市金宝盈文化股份有限公司 | A kind of bracelet turgor pressure manufacture craft |
| CN114011943A (en) * | 2020-10-30 | 2022-02-08 | 哈尔滨哈飞航空工业有限责任公司 | Die for bending and bulging part with negative angle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20070711 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |