CN209193797U - Molding die preheating device and multi-mould hot bending shape equipment - Google Patents
Molding die preheating device and multi-mould hot bending shape equipment Download PDFInfo
- Publication number
- CN209193797U CN209193797U CN201821758020.5U CN201821758020U CN209193797U CN 209193797 U CN209193797 U CN 209193797U CN 201821758020 U CN201821758020 U CN 201821758020U CN 209193797 U CN209193797 U CN 209193797U
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- China
- Prior art keywords
- molding die
- heating plate
- preheating
- shell
- pusher
- Prior art date
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- 238000000465 moulding Methods 0.000 title claims abstract description 105
- 238000013003 hot bending Methods 0.000 title claims abstract description 17
- 238000010438 heat treatment Methods 0.000 claims abstract description 93
- 239000004744 fabric Substances 0.000 claims abstract description 25
- 238000009413 insulation Methods 0.000 claims description 23
- 239000011261 inert gas Substances 0.000 claims description 5
- 238000007493 shaping process Methods 0.000 claims description 5
- 230000001360 synchronised effect Effects 0.000 claims description 3
- 239000011521 glass Substances 0.000 abstract description 18
- 238000004519 manufacturing process Methods 0.000 abstract description 13
- 238000011144 upstream manufacturing Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000000758 substrate Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000003666 anti-fingerprint Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000006392 deoxygenation reaction Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000005357 flat glass Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004093 laser heating Methods 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 230000003678 scratch resistant effect Effects 0.000 description 1
- 238000010583 slow cooling Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
Landscapes
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
Abstract
The utility model relates to glass working arts field, a kind of molding die preheating device and multi-mould hot bending shape equipment are disclosed.Molding die preheating device includes shell, it is provided in shell along the spaced apart a plurality of preheating station in pusher direction, in the cloth direction vertical with pusher direction, every preheating station includes multiple along the spaced apart molding die position location of cloth direction, and each molding die position location of a plurality of preheating station is sequentially communicated along pusher direction.In this way, multiple molding dies of upstream can be disposably pushed at each molding die position location of every preheating channel to carry out corresponding the pre-heat treatment, in such manner, it is possible to once handle multiple molding dies, with improving production efficiency and achieve the purpose that improve single device production capacity.
Description
Technical field
The utility model relates to glass working arts fields, more more particularly to a kind of molding die preheating device and one kind
Mold hot bending shape equipment.
Background technique
Due to the development of OLED display technology and high face value, the advantage unshielded to signal of bend glass, curved surface glass
Glass will become the mainstream cover board product of each display field.Such as smart phone, smartwatch, tablet computer, wearable intelligence
Product, instrument board etc. clearly guide 3D bend glass developing direction.3D bend glass is frivolous, transparent cleaning, anti-fingerprint,
Anti-dazzle, hard, scratch resistant, the advantages that and wireless charging function, solve that antenna arrangement space is insufficient and enhancing reception function
Can, keep product more attractive outstanding.For example, existing common mobile phone 3D bend glass molding substrate method and step are as follows: 1. at room temperature,
Under air environment, manually 2D planar glass substrate is put into molding die；2. the molding die for loading glass is put into close
Deoxygenation is carried out in isolation ward seal, full of nitrogen；3. substep is shaped to 3D curved surface by preheating, hot bending, slow cooling in molding room
Glass substrate；4. subsequently cooling to room temperature；5. manually dividing mould at room temperature, molding 3D bend glass substrate is taken out, then
Carry out next circulation.
But since 3D bend glass difficulty of processing is big, complex technical process, especially hot bending shape technique are whole
The key link of yields.And the aspects such as the automatization level of existing hot bending equipment is low, production efficiency is low, energy consumption is high are not
Foot, so that bend glass hot bending equipment has very big room for promotion.
Thus, it is desirable to have a kind of equipment can overcome or at least mitigate the drawbacks described above of the prior art.
Utility model content
The purpose of this utility model is to overcome problems of the existing technology, provide a kind of pre- hot charging of molding die
It sets, which is able to ascend production efficiency, to achieve the purpose that improve single device production capacity.
To achieve the goals above, the utility model provides a kind of molding die preheating device, including shell, the shell
It is inside provided with along the spaced apart a plurality of preheating station in pusher direction, in the cloth direction vertical with pusher direction, every
Preheating station includes multiple along the spaced apart molding die position location of cloth direction, wherein a plurality of preheating station it is each
A molding die position location is sequentially communicated along pusher direction.
Through the above technical solutions, due to being provided in shell along the spaced apart a plurality of preheating station in pusher direction,
And in the cloth direction vertical with pusher direction, every preheating station includes multiple along the spaced apart molding of cloth direction
Mold position location, wherein each molding die position location of a plurality of preheating station is sequentially communicated along pusher direction, upstream
Multiple molding dies can disposably be pushed at each molding die position location of every preheating channel it is corresponding to carry out
The pre-heat treatment with improving production efficiency and reach and improve separate unit and set in such manner, it is possible to once handle multiple molding dies
The purpose of standby production capacity.
Further, at each molding die position location, heating plate and lower heating plate are provided in the shell,
Molding die preheating space is formed between the upper heating plate and the lower heating plate.
Further, at least one of the upper heating plate and the lower heating plate can be gone up and down.
Further, it is identical to be divided into quantity in cloth direction for multiple upper heating plates in every preheating station
Multiple groups, every group of multiple upper respective connecting rods of heating plate are connected to the same connection after being telescopically pierced by from the roof of shell
Plate, the connecting plate are connected to driving device, which is able to drive every group of multiple upper heating plate synchronization liftings.
Further, upper heating plate whole in every preheating station of driving device synchronous drive of multiple groups lifting；Its
In, in every preheating station, the heating tube on top is penetrated and is sequentially passed through each from the first upper heating plate along cloth direction
It is pierced by after upper heating plate from the upper heating plate at end；Wherein, in every preheating station, the heating tube of lower part along cloth direction from
The first lower heating plate is penetrated and is pierced by after sequentially passing through each lower heating plate from the lower heating plate at end.
In addition, each molding die position location of a plurality of preheating station is sequentially communicated along pusher direction to form pusher
Slot.
Further, there are two the spaced apart guidance in cloth direction for setting at each molding die position location
Item, the guide ribs in a plurality of preheating station at molding die position location are successively aligned along pusher direction to form pusher groove.
Further, guide ribs are formed in the plate face towards upper heating plate of lower heating plate.
In addition, side insulation board is provided on the inner surface of the side wall of the shell, on the inner surface of the roof of the shell
It is provided with insulation board, lower insulation board, fixed plate and thermal insulation board are disposed on the inner surface of the bottom wall of the shell,
In, lower heating plate is arranged on thermal insulation board；Inert gas inleting pipe is provided on the shell.
Finally, the utility model provides a kind of multi-mould hot bending shape equipment, the multi-mould hot bending shape equipment include with
Upper any molding die preheating device and the molding die molding machine for being located at downstream on pusher direction, wherein
On pusher direction, the preheating station of tail item can be communicated with the shaping station of the first item of molding die molding machine.In this way, as above
Described, which can once be handled multiple molding dies, with improving production efficiency and be reached
To the purpose for improving single device production capacity.
Other features and advantages of the utility model will the following detailed description will be given in the detailed implementation section.
Detailed description of the invention
Fig. 1 be in a kind of specific embodiment according to the present utility model multi-mould hot bending shape equipment in pusher direction
On structural schematic diagram；
Fig. 2 is structural schematic diagram of the molding die preheating device in cloth direction in Fig. 1.
Description of symbols
1- shell, 2- preheating station, the upper heating plate of 3-, heating plate under 4-, 5- molding die preheating space, 6- connecting plate,
7- driving device, the side 8- insulation board, the upper insulation board of 9-, insulation board under 10-, 11- fixed plate, 12- thermal insulation board, 13- inert gas
Air inlet pipe, 14- molding die molding machine, 15- shaping station, 16- molding die preheating device, 17- molding die, 18- add
Heat pipe.
Specific embodiment
Specific embodiment of the present utility model is described in detail below in conjunction with attached drawing.It should be understood that herein
Described specific embodiment is only used for describing and explaining the present invention, and is not intended to limit the utility model.
A kind of structure of embodiment referring to fig. 1 and fig. 2, molding die preheating device packet provided by the utility model
Shell 1 is included, is provided in shell 1 along the spaced apart a plurality of preheating station 2 in pusher direction, such as 7 preheatings shown in FIG. 1
Station, in the cloth direction vertical with pusher direction, every preheating station 2 includes multiple spaced apart along cloth direction
Molding die position location, such as 6 molding die position locations as shown in Figure 2, wherein a plurality of preheating station 2 it is each
Molding die position location is sequentially communicated along pusher direction, can be made multiple such as upper 6 molding dies while be preheated simultaneously
Carry out subsequent hot bending shape.
In the technical scheme, due to being provided in shell 1 along the spaced apart a plurality of preheating station 2 in pusher direction,
And in the cloth direction vertical with pusher direction, every preheating station 2 include it is multiple along cloth direction it is spaced apart at
Pattern has position location, wherein and each molding die position location of a plurality of preheating station 2 is sequentially communicated along pusher direction,
Multiple molding dies to be preheated can be disposably pushed into first preheating channel by the pusher unit of upstream, and can disposably be pushed away
Enter at each molding die position location of subsequent every preheating channel, with to the shaped article in molding die 17 such as
Sheet glass carries out corresponding the pre-heat treatment, to meet the hot bending shape demand of subsequent molding die molding machine, in such manner, it is possible to
Once multiple molding dies are handled, with improving production efficiency and achieve the purpose that improve single device production capacity.
Certainly, in order to complete the pre-heat treatment, it is provided with the heating heated accordingly to molding die in shell 1 and fills
It sets, for example the individual heating unit being arranged in shell 1 is with the inner space of heated shell 1.
Alternatively, as shown in Figure 2, at each molding die position location, heating plate 3 is provided in shell 1 under
Heating plate 4 forms molding die preheating space 5, it is, molding die is to be supported between upper heating plate 3 and lower heating plate 4
In lower heating plate 4, so that the heating by upper heating plate 3 and lower heating plate 4 carries out corresponding the pre-heat treatment.
Certainly, upper heating plate 3 and lower heating plate 4 can fix, it is only necessary to which molding die is pushed into molding die preheating
In space 5.Alternatively, in order to further enhance pre-heat effect, it is preferable that upper heating plate 3 and lower heating plate 4 are configured to
It is close to the upper and lower surface of molding die, for this purpose, for the ease of being pushed into molding die, it is preferable that upper heating plate 3 and lower heating plate 4
At least one of can go up and down.For example, lower heating plate 4 can be gone up and down.
In view of lower heating plate 4 is used as plummer, in order to realize to the better positioning support of molding die, can add upper
Hot plate 3 is configured to go up and down, for example, as shown in Figure 2, in a kind of embodiment, and multiple upper heating in every preheating station 2
Plate 3 is divided into the identical multiple groups of quantity in cloth direction, and every group of the respective connecting rod of multiple upper heating plates 3 is telescopically from shell
1 roof is connected to the same connecting plate 6 after being pierced by, which is connected to driving device 7, which is able to drive
Every group of multiple upper 3 synchronization liftings of heating plate, for example, six upper heating plates 3 as shown in Figure 2 are divided into two groups, every group 3 above add
Hot plate 3 simultaneously drives lifting by the same such as cylinder of driving device 7.
Further, it is contemplated that the almost the same the pre-heat treatment of each molding die in same preheating station, preferably
Ground, whole upper heating plates 3 is gone up and down in every preheating station of 7 synchronous drive of driving device 2 of multiple groups；Wherein, every pre- thermal technology
In position 2, the heating tube 18 on top penetrates from the first upper heating plate 3 along cloth direction and sequentially passes through each upper heating plate 3
It is pierced by afterwards from the upper heating plate 3 at end；Wherein, in every preheating station 2, the heating tube 18 of lower part is along cloth direction from first place
Lower heating plate 4 penetrate and be pierced by after sequentially passing through each lower heating plate 4 from the lower heating plate 4 at end.In this way, each upper heating
Plate 3 and lower heating plate 4 are by with almost the same heating temperature, to promote the pre-heat effect of each molding die.
In addition, for the ease of multiple molding dies are disposably fitly pushed into next preheating from a preheating station
Station, it is preferable that each molding die position location of a plurality of preheating station 2 is sequentially communicated along pusher direction to form pusher
Slot.In this way, the guidance of the trough rim by pusher groove, each molding die neatly entirely can disposably be pushed into next
Preheating channel.
Certainly, pusher groove can be formed by diversified forms, for example, can be formed on the upper surface of lower heating plate 4
Groove is using as pusher groove, alternatively, in another form, on the loading end at each molding die position location there are two settings
The spaced apart guide ribs in cloth direction, in this way, a slot section is formed between two guide ribs, and a plurality of preheating station 2
Guide ribs at middle molding die position location are successively aligned along pusher direction to form pusher groove.For example, a kind of embodiment
In, in the case of being provided with lower heating plate 4, guide ribs can be formed in the plate face towards upper heating plate 3 of lower heating plate 4
On.Certainly, the height of guide ribs is less than the height of molding die, in this way, the lower surface of upper heating plate 3 can be tightly attached into
On the upper surface of pattern tool.
Certainly, shell 1 can have multiple structural forms, for example, in a kind of embodiment, in order to ensure the temperature in shell 1
Degree promotes pre-heat effect, it is preferable that as shown in Figure 2, side insulation board 8, shell 1 are provided on the inner surface of the side wall of shell 1
Roof inner surface on be provided with insulation board 9, lower insulation board 10, solid is disposed on the inner surface of the bottom wall of shell 1
Fixed board 11 and thermal insulation board 12, wherein lower heating plate 4 is arranged on thermal insulation board 12, fixed plate 11 is used as carrier, can be to thereon
Thermal insulation board 12 and lower heating plate 4 have good supporting role, so that lower heating plate 4 has well stable connect to molding die
Touching, enables molding die thermally equivalent, and thermal insulation board 12 can be refractory material, high temperature resistant, insulation, in protection week
While enclosing component, heat loss is reduced.In this way, passing through the insulation board at each position, it can be ensured that the temperature in shell 1
Meet pre- heat demand；And inert gas inleting pipe 13 is provided on shell 1, inert gas ratio can be injected into shell 1 in this way
As nitrogen carries out protection against oxidation to the such as graphite jig of the molding die in shell 1 to form nitrogen atmosphere in shell 1.
It is as shown in Figure 1 finally, the utility model provides a kind of multi-mould hot bending shape equipment, the multi-mould hot bending at
Type equipment includes molding die preheating device 16 described in any of the above and is located at molding die preheating device on pusher direction
The molding die molding machine 14 in 16 downstreams, wherein on pusher direction, the preheating station 2 of tail item can with molding die at
The shaping station 15 of the first item of type device 14 communicates.In this way, multiple molding dies of 16 upstream of molding die preheating device can be with
It is disposably fitly pushed into along pusher direction in the preheating station 2 of first item and carries out the pre-heat treatment, for example, being preheated by 7
Glass mold can be heated to 700 degree or so from room temperature by seven stations of station, the glass mold preheating of preheated zone, be met
Glass deformation temperature.For example, molding die is every to pass through one section of regular time, next preheating can be moved to from previous preheating station
Station is heated, and by laser heating, when entering the 7th preheating station, the temperature of molding die can be added molding die
Heat is to 700 degree or so, at this point, glass reaches softening point temperature in molding die, molding die enters hot bending shape region.This
Sample, as above, which can once be handled multiple molding dies, with improving production efficiency and
Achieve the purpose that improve single device production capacity.
Preferred embodiments of the present invention, still, the utility model and unlimited are described in detail in conjunction with attached drawing above
In this.In the range of the technology design of the utility model, a variety of simple variants can be carried out to the technical solution of the utility model,
It is combined in any suitable manner including each particular technique feature, in order to avoid unnecessary repetition, the utility model
To various combinations of possible ways, no further explanation will be given.But these simple variants and combination equally should be considered as the utility model institute
Disclosure belongs to the protection scope of the utility model.
Claims (10)
1. a kind of molding die preheating device, which is characterized in that including shell (1), be provided in the shell (1) along pusher
The spaced apart a plurality of preheating station (2) in direction, in the cloth direction vertical with pusher direction, every preheating station (2) packet
It includes multiple along the spaced apart molding die position location of cloth direction, wherein each shaping mould of a plurality of preheating station (2)
Tool position location is sequentially communicated along pusher direction.
2. molding die preheating device according to claim 1, which is characterized in that in each molding die position location
Place, the shell (1) is interior to be provided with heating plate (3) and lower heating plate (4), the upper heating plate (3) and the lower heating plate
(4) molding die preheating space (5) are formed between.
3. molding die preheating device according to claim 2, which is characterized in that the upper heating plate (3) and it is described under
At least one of heating plate (4) can be gone up and down.
4. molding die preheating device according to claim 3, which is characterized in that multiple in every preheating station (2)
The upper heating plate (3) is divided into the identical multiple groups of quantity, every group of the respective connection of multiple upper heating plates (3) in cloth direction
Bar is connected to the same connecting plate (6) after being telescopically pierced by from the roof of shell (1), which is connected to driving device
(7), which is able to drive every group of multiple upper heating plate (3) synchronization liftings.
5. molding die preheating device according to claim 4, which is characterized in that driving device (7) synchronous belt of multiple groups
Move upper heating plate (3) lifting whole in every preheating station (2)；
Wherein, in every preheating station (2), the heating tube (18) on top is worn along cloth direction from the first upper heating plate (3)
Enter and is pierced by after sequentially passing through each upper heating plate (3) from the upper heating plate (3) at end；
Wherein, in every preheating station (2), the heating tube (18) of lower part is worn along cloth direction from the first lower heating plate (4)
Enter and is pierced by after sequentially passing through each lower heating plate (4) from the lower heating plate (4) at end.
6. molding die preheating device according to claim 2, which is characterized in that a plurality of preheating station (2) it is each at
Pattern tool position location is sequentially communicated along pusher direction to form pusher groove.
7. molding die preheating device according to claim 6, which is characterized in that set at each molding die position location
It sets there are two the spaced apart guide ribs in cloth direction, drawing at molding die position location in a plurality of preheating station (2)
Conducting bar is successively aligned along pusher direction to form pusher groove.
8. molding die preheating device according to claim 7, which is characterized in that guide ribs are formed in lower heating plate (4)
The plate face towards upper heating plate (3) on.
9. molding die preheating device according to claim 2, which is characterized in that the interior table of the side wall of the shell (1)
It is provided on face side insulation board (8), is provided with insulation board (9), the shell on the inner surface of the roof of the shell (1)
(1) lower insulation board (10), fixed plate (11) and thermal insulation board (12) are disposed on the inner surface of bottom wall, wherein lower heating
Plate (4) is arranged on thermal insulation board (12)；
Inert gas inleting pipe (13) are provided on the shell (1).
10. a kind of multi-mould hot bending shape equipment, which is characterized in that including according to claim 1 described in any one of -9
Molding die preheating device (16) and the molding die molding machine for being located at downstream on pusher direction, wherein in pusher direction
On, the preheating station (2) of tail item can be communicated with the shaping station (15) of the first item of molding die molding machine (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821758020.5U CN209193797U (en) | 2018-10-25 | 2018-10-25 | Molding die preheating device and multi-mould hot bending shape equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821758020.5U CN209193797U (en) | 2018-10-25 | 2018-10-25 | Molding die preheating device and multi-mould hot bending shape equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209193797U true CN209193797U (en) | 2019-08-02 |
Family
ID=67409480
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821758020.5U Active CN209193797U (en) | 2018-10-25 | 2018-10-25 | Molding die preheating device and multi-mould hot bending shape equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209193797U (en) |
-
2018
- 2018-10-25 CN CN201821758020.5U patent/CN209193797U/en active Active
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Effective date of registration: 20200924 Address after: 050035 No. 9, the Yellow River Avenue, hi tech Zone, Hebei, Shijiazhuang Patentee after: DONGXU OPTOELECTRONIC TECHNOLOGY Co.,Ltd. Address before: The 100075 Beijing Seahawks Fengtai District Science City Road No. 9 Building No. 2 room 266 (Park) Patentee before: TUNGHSU TECHNOLOGY GROUP Co.,Ltd. Patentee before: TUNGHSU GROUP Co.,Ltd. |
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Assignee: Hebei Guangxing Semiconductor Technology Co.,Ltd. Assignor: DONGXU OPTOELECTRONIC TECHNOLOGY Co.,Ltd. Contract record no.: X2021990000458 Denomination of utility model: Forming mould preheating device and multi mould hot bending forming equipment Granted publication date: 20190802 License type: Common License Record date: 20210811 Assignee: Sichuan Zhongpu wisdom Group Co.,Ltd. Assignor: DONGXU OPTOELECTRONIC TECHNOLOGY Co.,Ltd. Contract record no.: X2021990000462 Denomination of utility model: Forming mould preheating device and multi mould hot bending forming equipment Granted publication date: 20190802 License type: Common License Record date: 20210811 |
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Assignee: Sichuan Hongji optical glass new material technology Co.,Ltd. Assignor: DONGXU OPTOELECTRONIC TECHNOLOGY Co.,Ltd. Contract record no.: X2021110000028 Denomination of utility model: Forming mould preheating device and multi mould hot bending forming equipment Granted publication date: 20190802 License type: Common License Record date: 20210823 |
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Assignee: Henan Quxian Photoelectric Technology Co.,Ltd. Assignor: DONGXU OPTOELECTRONIC TECHNOLOGY Co.,Ltd. Contract record no.: X2021110000038 Denomination of utility model: Forming mould preheating device and multi mould hot bending forming equipment Granted publication date: 20190802 License type: Common License Record date: 20210910 |
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Assignee: Shaanxi Dongcheng Haoyu New Material Technology Co.,Ltd. Assignor: DONGXU OPTOELECTRONIC TECHNOLOGY Co.,Ltd. Contract record no.: X2022110000016 Denomination of utility model: Forming mold preheating device and multi-mold hot bending forming equipment Granted publication date: 20190802 License type: Common License Record date: 20220905 |
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Assignee: Liaoyuan Shengyuan New Material Technology Co.,Ltd. Assignor: DONGXU OPTOELECTRONIC TECHNOLOGY Co.,Ltd. Contract record no.: X2023110000058 Denomination of utility model: Preheating device for forming molds and multi mold hot bending forming equipment Granted publication date: 20190802 License type: Common License Record date: 20230506 |
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Assignee: Qingdao fusion Intelligent Technology Co.,Ltd. Assignor: DONGXU OPTOELECTRONIC TECHNOLOGY Co.,Ltd. Contract record no.: X2023110000062 Denomination of utility model: Preheating device for forming molds and multi mold hot bending forming equipment Granted publication date: 20190802 License type: Common License Record date: 20230510 |