CN102114698A - Injection molding mould, preheating device, and method for preheating by using injection molding mould - Google Patents
Injection molding mould, preheating device, and method for preheating by using injection molding mould Download PDFInfo
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- CN102114698A CN102114698A CN2009102662072A CN200910266207A CN102114698A CN 102114698 A CN102114698 A CN 102114698A CN 2009102662072 A CN2009102662072 A CN 2009102662072A CN 200910266207 A CN200910266207 A CN 200910266207A CN 102114698 A CN102114698 A CN 102114698A
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Abstract
The invention discloses an injection molding mould having a preheating device, the preheating device thereof, and a method for preheating by using the injection molding mould. The preheating device comprises a high-frequency coil element and a transmission device, wherein the transmission device comprises a Z shaft servo motor device, a Z axis linear sliding rail, an annular transmission belt and a hoisting frame; the annular transmission belt rotates along with the action of the Z shaft servo motor device; the high-frequency coil element is hung on the hoisting frame; and the hoisting frame is moveably connected to the Z axis linear sliding rail, is coupled with the annular transmission belt, and shifts up and down along the Z axis linear sliding rail along with the running of the annular transmission belt, thereby guiding the high-frequency coil element to get in/out of the position between a male mold and a female mold.
Description
Technical field
The present invention relates to a kind of mould and die preheating device, particularly relate to injection forming mold, its preheating device of a kind of tool preheating device, and injection forming mold carries out the method for preheating.
Background technology
Tradition plastic cement injection mo(u)lding manufacture craft process step is as follows in regular turn: at first make plastics enter injection molding machine material pipe and plastify into molten resin, then carry out mold closing, molten resin is injected in the die cavity, injection molding machine pressurize, mould cool cycles, die sinking, ejected etc. and to take out finished product after the step.
Among the injection mo(u)lding manufacture craft, mold temperature will influence characteristics such as exterior qualities such as the contraction, deflection, melt run, surface gloss of plastic cement finished product and molding cycle.
For this reason, common in the background technology is traditional warm machine of mould (oil), or is implanted into electrical bar at die, behind the electrical bar heating mould, carries out the injection mo(u)lding manufacture craft again.
Because mould is under the condition of high temperature always, makes cool time and molding cycle that the plastic rubber shaping product are required therefore prolong, and influence production efficiency.
The mould heating principle of another kind of rapid heat cycle for by high-pressure steam at a high speed by the water route heating mould in the die, after plastic cement injection moulding machine injection-moulded plastic is in die cavity, again by inject chilled water flow by the water route with cooling die.Its shortcoming is for being distributed in die inside owing to the water route, and the heating/cooling procedure of die can be subjected to the influence of the hot transfer efficiency of steel, and to the die surface, required heat time heating time is about more than 20 seconds by the die conducted inside for heat energy.
Use water vapour to add the method for thermal medium in addition for making the water generates steam pass through the mode of mould water route heating mould fast by burning vapour/diesel oil heating boiler equipment, its shortcoming is for expending energy height, and the CO2 emissions that increased do not meet environmental protection and energy saving and subtract the carbon requirement.
The pre-heated another kind of method of mould heats die surface by flame for using the flame of burning gas, die surface is heated rapidly reach a high temperature.Yet, dangerous high and not enough in the heating process of the flame of use burning gas for the stability of mould temperature control, nor can reach the carbon reduction requirement.
In view of this, how developing a kind of mould and die preheating method and device with above-mentioned disappearance of being brought of effective improvement and inconvenience, is a relevant dealer instant important topic at present in fact.
Summary of the invention
The object of the present invention is to provide a kind of injection forming mold, its preheating device with preheating device, and injection forming mold carries out the method for preheating, electromagnetic induction by the high frequency coil heats on the one hand, so that safety, high-speed molding to be provided, energy-conservation and cost-effective solution, drive the conveyer belt motion by servo motor on the other hand and carry out the motion repeatedly of vertical linearity ground, so that dynamically precise and stable mobile route to be provided.
For reaching above-mentioned purpose, the injection forming mold that this kind of the present invention has preheating device comprises a male model, a master mold, and a preheating device.Preheating device comprises a high frequency coil part and a transmission device.The high frequency coil part is in order to produce electromagnetic induction.Transmission device comprises a fixed mount and a crane.Fixed mount tool one Z axle servo motor device, one first z axis slide rail and an endless belt.Endless belt connects Z axle servo motor device, in order to turn round along with the start of Z axle servo motor device.One end of crane is hung the high frequency coil part, and other holds tool one second z axis slide rail, and the second z axis slide rail couples endless belt, and engages the first z axis slide rail versatilely.
So; when male model and master mold are separated; Z axle servo motor device drives the endless belt running; crane carries out the lifting displacement with endless belt along the first z axis slide rail; and fall the high frequency coil part between male model and the master mold, so that the high frequency coil part carries out preheating to the surface of male model or master mold.
In the another embodiment of the present invention, crane more comprises a support body, an X-axis servo motor device and a pan carriage.X-axis servo motor device is positioned at a side of this support body, has an X-axis ball screw.Pan carriage is bolted on the X-axis ball screw versatilely, and hangs the high frequency coil part.
Because the surface distance of high frequency coil part and male model or master mold will influence the stability of the efficiency of heating surface and temperature, by X-axis servo motor device and X-axis ball screw, can control the surface distance of high frequency coil part and male model or master mold accurately.
So, the present invention can do accurate control to the motion that the high frequency coil part carries out the X-axis horizontal direction, lowers the chance of consume high frequency energy, and then effectively reaches equal temp effect.
The method that this kind injection forming mold carries out preheating is applicable on the above-mentioned preheating device.The method comprises: separate a male model and a master mold; Fall a high frequency coil part linearly between this male model and this master mold along a Z-direction, and make this high frequency coil part just face a die cavity of this master mold; Move this high frequency coil part linearly along a horizontal direction, make the surface of this high frequency coil part near this die cavity of this master mold; And by this high frequency coil part produce electromagnetic induction to the surface of this die cavity to produce heat energy.
The disclosed apparatus and method of the present invention are to use the technology on high frequency energy rapidly heating moulds top layer, make before plastics are injected die cavity, with high frequency energy heating die top layer, because the heat conduction is to heat the die top layer outside to inside, it is inner few that its heat conducts to die, therefore with respect to the cool time that can shorten after injection mo(u)lding, be the green manufacture craft of energy-conserving and environment-protective, in the time of can improving the efficient of molding cycle and then shorten the chief engineer of injection mo(u)lding manufacture craft.
Description of drawings
For above-mentioned and other purposes of the present invention, feature, advantage and embodiment can be become apparent, being described in detail as follows of appended accompanying drawing:
Fig. 1 has the structural representation of injection forming mold under an embodiment of preheating device for the present invention;
Fig. 2 has the operation chart that the injection forming mold of preheating device moves at this embodiment lower edge z axis slide rail for the present invention;
Fig. 3 is a structural representation of observing the preheating device of Fig. 2 towards direction D;
Fig. 4 has the operation chart that the injection forming mold of preheating device moves at this embodiment lower edge X-axis ball screw for the present invention;
Fig. 5 carries out the flow chart of method under another embodiment of preheating for injection forming mold of the present invention.
The main element symbol description
100: injection forming mold 432: drive
110: male model 434: be with synchronously
120: master mold 440: crane
121: die cavity 442: support body
200: preheating device 451:X axle servo motor device
300: high frequency coil part 452:X axle ball screw
400: transmission device 461:Y axle servo motor device
410: fixed mount 462:Y axle ball screw
413:Z axle servo motor device 463: connector
414: power transmission shaft 470: pan carriage
415: the first z axis slide rail D: direction
420: the second z axis slide rail X, Y, Z: axially
430: endless belt step: 501～505
The specific embodiment
Below will and describe in detail and clearly demonstrate spirit of the present invention with diagram, as the person skilled in the art after understanding embodiments of the invention, when can be by the technology of teachings of the present invention, change and modification, it does not break away from spirit of the present invention and scope.
The present invention discloses a kind of injection forming mold, its preheating device with preheating device, and injection forming mold carries out the method for preheating.
See also Fig. 1 to shown in Figure 3.Fig. 1 illustrates the structural representation of injection forming mold under an embodiment that the present invention has preheating device.Fig. 2 illustrates the operation chart that the injection forming mold of tool preheating device of the present invention moves at this embodiment lower edge z axis slide rail.Fig. 3 illustrates the structural representation of observing the preheating device of Fig. 2 towards a direction D.
The preheating device 200 of this kind injection forming mold 100 is to be applied to before the injection forming mold 100 beginning injected plastics male model 110 separable and closed in the injection forming mold 100 and a master mold 120 be carried out preheating.
This preheating device 200 comprises a high frequency coil part (induction heating) 300 and one transmission device 400.Transmission device 400 connects this high frequency coil part 300, mainly utilize servo motor to drive the mode of conveyer belt motion, drive high frequency coil part 300 along a Z-direction (being vertical direction) and enter between male model 110 and the master mold 120, make 300 pairs of male models 110 of high frequency coil part or master mold 120 carry out preheating (as Fig. 2).
In one embodiment of the invention, preheating device 200 for example is fixed on the master mold 120 of injection forming mold 100.Transmission device 400 comprises a fixed mount 410 and a crane 440.Crane 440 is hung high frequency coil part 300, but the round displacement that relative fixed frame 410 rises or falls, and then drive high frequency coil part 300.
Particularly, fixed mount 410 has a Z axle servo motor device 413,2 first z axis slide rails 415 and two endless belt, 430 (see figure 3)s.This two first z axis slide rail 415 is positioned at two corresponding sides of fixed mount 410 coplanars.The endless belt 430 contiguous first z axis slide rails 415, and connect a Z axle servo motor device 413, can be carried out the running of clockwise or inverse clock and drive along with the running of Z axle servo motor device 413.
On real the work, each endless belt 430 comprises that a plurality of drives 432 and are with 434 synchronously.Be with 434 to be sheathed on these a little drives 432 and to couple the second z axis slide rail 420 synchronously.One power transmission shaft 414 of Z axle servo motor device 413 is meshed with a drive 432 wherein.So when the power transmission shaft 414 of Z axle servo motor device 413 rotated, drive 432 just drove and is with 434 runnings synchronously.When being with 434 synchronously towards rotating counterclockwise, the then displacement that descends along z axis slide rail 420 of crane 440, vice versa (as Fig. 2).
See also Fig. 3 and shown in Figure 4.Fig. 4 illustrates the operation chart that injection forming mold that the present invention has preheating device moves in this embodiment lower edge X-direction.
When high frequency coil part 300 is between male model 110 and master mold 120, these preheating device 200 more recycling servo motors drive the mode that ball screw rotates, drive high frequency coil part 300 along the die cavity 121 of X-direction (being horizontal direction), so that preheating is carried out on die cavity 121 surfaces of 300 pairs of master molds 120 of high frequency coil part near master mold 120.
Particularly, crane 440 more comprises an X-axis servo motor device 451 and a pan carriage 470.X-axis servo motor device 451 is positioned at a side of support body 442, has the linear ball screw 452 of an X-axis.Pan carriage 470 is bolted on the linear ball screw 452 of X-axis versatilely, rotates the linear ball screw 452 of X-axis by X-axis servo motor device 451, and pan carriage 470 can be carried out the displacement of X-direction on the linear ball screw 452 of X-axis.
Rotate the linear ball screw 452 of X-axis by X-axis servo motor device 451, can accurately control the position of pan carriage 470 on the linear ball screw 452 of X-axis.(as Fig. 4).
So,, make high frequency coil part 300 to be carried out the displacement of X-direction (being horizontal direction) by drive because pan carriage 470 hangs above-mentioned high frequency coil part 300, so flatly near or away from die cavity 121 (see figure 4)s of master mold 120.
In addition, the method that similar above-mentioned drive pan carriage 470 is carried out the X-direction displacement, the present invention does not get rid of and has the method that pan carriage 470 is carried out Y direction (being vertical X-axis and Z-direction) displacement that drives yet, and then drives the (see figure 3) displacement flatly in die cavity 121 of high frequency coil part 300.
Particularly, crane 440 more comprises a Y-axis servo motor device 461.Y-axis servo motor device 461 has the linear ball screw 462 of a Y-axis and a connection piece 463, and the linear ball screw 462 of Y-axis is arranged in connector 463.Connector 463 is bolted on the X-axis ball screw 452 movably.470 of pan carriage are bolted on the linear ball screw 462 of Y-axis versatilely.
So, pan carriage 470 not only can be along the displacement of carrying out X-direction on the linear ball screw 452 of X-axis, rotate the linear ball screw 462 of Y-axis by Y-axis servo motor device 461, pan carriage 470 also can be carried out the displacement of Y direction on the linear ball screw 462 of Y-axis, and then drives the (see figure 3) displacement flatly in die cavity 121 of high frequency coil part 300.
Rotate the linear ball screw 462 of Y-axis by Y-axis servo motor device 461, can accurately control the position of pan carriage 470 on the linear ball screw 462 of Y-axis.(as Fig. 3).
Since the coil of high frequency coil part 300 by electric current by the time can produce magnetic field, when high frequency coil part 300 during near the die cavity 121 of master mold 120, can be on the die top layer at extremely short time concentrated vorticity electric current.The generation of its heat is by resistance heat and magnetic hysteresis loss.Because the present invention directly heats the die top layer, make mould temperature by 60 degree Celsius (℃) be elevated to 220 degree Celsius (℃) only need 2～3 seconds.
In addition preheating device 200 be positioned at male model 110 or master mold 120 on can more specifically be located at the end face (shown in each figure) of master mold 120 or male model 110, make preheating device 200 can be integrated on the injection forming mold 100.Yet the present invention does not limit to the top that this preheating device 200 only is positioned at male model 110 or master mold 120, and this preheating device 200 also can be positioned at the both sides of male model 110 and master mold 120.
In addition, please consult Fig. 1～shown in Figure 5 simultaneously.Fig. 5 illustrates the flow chart of method under another embodiment that injection forming mold of the present invention carries out preheating.The method discloses the method that a kind of injection forming mold 100 carries out preheating, is applicable to above-mentioned preheating device 200, and the method is carried out following processing according to an embodiment:
Step 501: separate a male model 110 and a master mold 120.
Step 502: fall high frequency coil part 300 between male model 110 and the master mold 120 along a Z-direction.
In this step, when Z axle servo motor device 413 is activated, make when power transmission shaft 414 rotates, be with 434 to rotate synchronously and then drive crane 440 and descend synchronously, cause high frequency coil part 300 to enter gap (as Fig. 2) between male model 110 and the master mold 120.Simultaneously, make that high frequency coil part 300 just can be in the face of the die cavity 121 of master mold 120.High frequency coil part 300 in this step, starts high frequency coil part 300 simultaneously, so that can produce electromagnetic induction.
Step 503: move horizontally high frequency coil part 300, high frequency coil part 300 is stretched in the die cavity 121 of master mold 120, and near die cavity 121 surfaces.
In this step, when X-axis servo motor device 451 is activated, X-axis servo motor device 451 drives the linear ball screw 452 of X-axis and rotates to drive pan carriage 470 along X-direction, in pan carriage 470 and then the die cavity 121 of drive high frequency coil part 300 near master mold 120, and near die cavity 121 surfaces (as Fig. 4).
Can comprise also in this step that Y-axis servo motor device 461 drives pan carriage 470 and carry out the motion of Y direction on the linear ball screw 462 of Y-axis, and then makes high frequency coil part 300 (see figure 3) displacement flatly in die cavity 121.
Step 504: produce electromagnetic induction to die cavity 121 surfaces by high frequency coil part 300, and to die cavity 121 surface heating.
Step 505: when high frequency makes die cavity 121 surfaces be heated to preset temperature value, make X-axis servo motor device 451 and Z axle servo motor device 413 bands in regular turn from crane 440.
In this step, when high frequency heats die cavity 121 surfaces to a preset temperature, the oppositely mobile high frequency coil part 300 of X-axis servo motor device, make the die cavity 121 of high frequency coil part 300 away from master mold 120, then, Z axle servo motor device 413 rises crane 440 makes high frequency coil part 300 leave the gap between male model 110 and the master mold 120, so that male model 110 is able to closure with master mold 120.
Also can close high frequency coil part 300 simultaneously in the step 505, so that high frequency coil part 300 stops to produce electromagnetic induction.
So, after said method was finished, the dealer just can proceed above-mentioned full pressure of plastics injection, moulding and cool off, and die sinking taking-up finished product supervisor, to finish the injection mo(u)lding workflow of single circulation.
The disclosed apparatus and method of the present invention are compared to each preheating method in the background technology, when can provide help the chief engineer of the injection mo(u)lding workflow that shortens single circulation to produce enough heat energy on cavity surface shorter heat time heating time.In addition, the present invention more provides safe and cost-effective solution, electromagnetic induction by the high frequency coil heats on the one hand, and the mode by the conveyer belt motion drives the high frequency coil to injection forming mold on the other hand, so that the stable mobile route easily that reaches to be provided.
The present invention discloses among as above each embodiment; be not in order to limiting the present invention, anyly be familiar with this operator, without departing from the spirit and scope of the present invention; can be used for a variety of modifications and variations, thus protection scope of the present invention should with enclose claim was defined is as the criterion.
Claims (14)
1. injection forming mold with preheating device comprises:
Male model;
Master mold; And
Preheating device comprises:
The high frequency coil part is in order to produce electromagnetic induction; And
Transmission device comprises:
Fixed mount has Z axle servo motor device, first z axis slide rail and the endless belt, and this endless belt connects this Z axle servo motor device, in order to turn round along with the start of this Z axle servo motor device; And
Crane, one end are hung this high frequency coil part, and the other end has the second z axis slide rail, and this second z axis slide rail couples this endless belt, and engage this first z axis slide rail versatilely,
Wherein, when this Z axle servo motor device drives this endless drive tape travel, this crane carries out the lifting displacement with this endless belt along this first z axis slide rail, to pass in and out between this male model and this master mold.
2. the injection forming mold with preheating device as claimed in claim 1, wherein this Z axle servo motor device has power transmission shaft;
This endless belt comprises:
A plurality of drives, one of them is meshed those drives with this power transmission shaft; And
Band couples this second z axis slide rail, and is sheathed on those drives synchronously.
3. the injection forming mold with preheating device as claimed in claim 1, wherein this crane also comprises:
Support body;
X-axis servo motor device is positioned at a side of this support body, has the X-axis ball screw; And
Pan carriage is bolted on this X-axis ball screw versatilely, and hangs this high frequency coil part.
4. the injection forming mold with preheating device as claimed in claim 1, wherein this crane also comprises:
Support body;
X-axis servo motor device is positioned at a side of this support body, has the X-axis ball screw;
Y-axis servo motor device has Y-axis ball screw and a connection piece, and this Y-axis ball screw is arranged in this connector, and this connector is bolted on this X-axis ball screw versatilely; And
Pan carriage is bolted on this Y-axis ball screw versatilely, and hangs this high frequency coil part.
5. the injection forming mold with preheating device as claimed in claim 1, wherein this preheating device is positioned at the top position that a Z axle highly is higher than this male model or this master mold.
6. the preheating device of an injection forming mold in order to preheating is carried out on the surface of a male model and a master mold, comprising:
Transmission device comprises:
Fixed mount; And
Z axle servo motor device is positioned on this fixed mount;
The first z axis slide rail is positioned on this fixed mount;
Endless belt connects this Z axle servo motor device, turns round along with the start of this Z axle servo motor device; And
Crane has the second z axis slide rail, and this second z axis slide rail couples this endless belt, and engages this first z axis slide rail versatilely, in order to the running with this endless belt, carries out the lifting displacement along this z axis slide rail; And
The high frequency coil part is hung on this crane, and when reducing between this male model and this master mold, to the surface generation electromagnetic induction of this male model or this master mold.
7. the preheating device of injection forming mold as claimed in claim 6, wherein this Z axle servo motor device has power transmission shaft;
This endless belt comprises:
A plurality of drives, one of them is meshed those drives and this power transmission shaft; And
Band couples this crane, and is sheathed on those drives synchronously.
8. the preheating device of injection forming mold as claimed in claim 6, wherein this crane also comprises:
Support body;
X-axis servo motor device, a side that is positioned at this support body has the X-axis ball screw; And
Pan carriage is bolted on this X-axis ball screw versatilely, and hangs this high frequency coil part.
9. the preheating device of injection forming mold as claimed in claim 6, wherein this crane also comprises:
Support body;
X-axis servo motor device, a side that is positioned at this support body has the X-axis ball screw;
Y-axis servo motor device has Y-axis ball screw and a connection piece, and this Y-axis ball screw is arranged in this connector, and this connector is bolted on this X-axis ball screw versatilely; And
Pan carriage is bolted on this Y-axis ball screw versatilely, and hangs this high frequency coil part.
10. method that injection forming mold carries out preheating is applicable to that on the preheating device of an injection forming mold, this method comprises:
Separate male model and master mold;
Fall a high frequency coil part linearly between this male model and this master mold along Z-direction, and make this high frequency coil part just face a die cavity of this master mold;
Along continuous straight runs moves this high frequency coil part linearly, makes the surface of this high frequency coil part near this die cavity of this master mold; And
By this high frequency coil part produce electromagnetic induction to the surface of this die cavity to produce heat energy.
11. injection forming mold as claimed in claim 10 carries out the method for preheating, wherein falls this high frequency coil part linearly along this Z-direction, also comprises:
Start Z axle servo motor device, this Z axle servo motor device endless belt that turns round, and fall this high frequency coil part along the z axis slide rail.
12. injection forming mold as claimed in claim 11 carries out the method for preheating, wherein moves this high frequency coil part linearly along this horizontal direction, also comprises:
Start X-axis servo motor device, make this X-axis servo motor device rotate the X-axis ball screw, and drive the surface of this die cavity of this high frequency coil part along X-direction to this master mold.
13. injection forming mold as claimed in claim 12 carries out the method for preheating, wherein drive the surface of this die cavity of this high frequency coil part along this X-direction to this master mold after, also comprise:
Start Y-axis servo motor device, make this Y-axis servo motor device rotate the Y-axis ball screw, and drive this high frequency coil part along the displacement in this die cavity of Y-axis horizontal direction.
14. injection forming mold as claimed in claim 12 carries out the method for preheating, wherein by this high frequency coil part produce electromagnetic induction to the surface of this die cavity to produce heat energy, also comprise:
When this cavity surface was heated to preset temperature value, this X-axis servo motor device of sequential start and this Z axle servo motor device were with between this male model and this master mold this crane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102662072A CN102114698A (en) | 2009-12-30 | 2009-12-30 | Injection molding mould, preheating device, and method for preheating by using injection molding mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102662072A CN102114698A (en) | 2009-12-30 | 2009-12-30 | Injection molding mould, preheating device, and method for preheating by using injection molding mould |
Publications (1)
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|---|---|
| CN102114698A true CN102114698A (en) | 2011-07-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102662072A Pending CN102114698A (en) | 2009-12-30 | 2009-12-30 | Injection molding mould, preheating device, and method for preheating by using injection molding mould |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104550842A (en) * | 2013-10-11 | 2015-04-29 | 特殊电极株式会社 | Preheating device and preheating method of casting machine die |
| CN108202446A (en) * | 2016-12-19 | 2018-06-26 | 中原大学 | Mold structure and heating method thereof |
| CN109437518A (en) * | 2018-10-31 | 2019-03-08 | 重庆星源玻璃器皿有限责任公司 | Mold preheats dedicated unit |
| CN110167735A (en) * | 2016-10-19 | 2019-08-23 | 罗图公司 | For by the overmolded method and apparatus being fixedly arranged in woven preform |
| CN110668678A (en) * | 2019-11-29 | 2020-01-10 | 东莞市凯融光学科技有限公司 | Self-heating mould core for manufacturing glass non-spherical lens |
| CN111805842A (en) * | 2020-07-14 | 2020-10-23 | 孙超月 | Working method of rapid die change mechanism for injection molding machining |
| CN112355271A (en) * | 2020-10-30 | 2021-02-12 | 郭凯 | Heating device for be arranged in corrugated steel plate mould die-casting process to preheat |
| CN114042886A (en) * | 2021-11-24 | 2022-02-15 | 杭州富生电器有限公司 | Rotor casting mold heating casting system and control method thereof |
-
2009
- 2009-12-30 CN CN2009102662072A patent/CN102114698A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104550842A (en) * | 2013-10-11 | 2015-04-29 | 特殊电极株式会社 | Preheating device and preheating method of casting machine die |
| CN104550842B (en) * | 2013-10-11 | 2018-07-17 | 特殊电极株式会社 | The preheating device and pre-heating mean of casting machine die |
| CN110167735A (en) * | 2016-10-19 | 2019-08-23 | 罗图公司 | For by the overmolded method and apparatus being fixedly arranged in woven preform |
| CN108202446A (en) * | 2016-12-19 | 2018-06-26 | 中原大学 | Mold structure and heating method thereof |
| CN109437518A (en) * | 2018-10-31 | 2019-03-08 | 重庆星源玻璃器皿有限责任公司 | Mold preheats dedicated unit |
| CN109437518B (en) * | 2018-10-31 | 2021-05-28 | 重庆星源玻璃器皿有限责任公司 | Special device for preheating mould |
| CN110668678A (en) * | 2019-11-29 | 2020-01-10 | 东莞市凯融光学科技有限公司 | Self-heating mould core for manufacturing glass non-spherical lens |
| CN111805842A (en) * | 2020-07-14 | 2020-10-23 | 孙超月 | Working method of rapid die change mechanism for injection molding machining |
| CN112355271A (en) * | 2020-10-30 | 2021-02-12 | 郭凯 | Heating device for be arranged in corrugated steel plate mould die-casting process to preheat |
| CN114042886A (en) * | 2021-11-24 | 2022-02-15 | 杭州富生电器有限公司 | Rotor casting mold heating casting system and control method thereof |
| CN114042886B (en) * | 2021-11-24 | 2023-09-08 | 杭州富生电器有限公司 | Rotor casting mold heating casting system and control method thereof |
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Application publication date: 20110706 |