CN101077516A - Core-shooting device, core-shooting method and core-shooting controlled system - Google Patents
Core-shooting device, core-shooting method and core-shooting controlled system Download PDFInfo
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- CN101077516A CN101077516A CN 200710130368 CN200710130368A CN101077516A CN 101077516 A CN101077516 A CN 101077516A CN 200710130368 CN200710130368 CN 200710130368 CN 200710130368 A CN200710130368 A CN 200710130368A CN 101077516 A CN101077516 A CN 101077516A
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Abstract
The present invention relates to one kind of sand core device for injection molding. The sand core device includes one core box with ventilator, and sealing boards coating the outer surface of the core box with cavity formed between the sealing boards and the core box. The ventilator is set on the sealing boards and communicated to the cavity, and one vacuum system is connected through pipeline to the deflating port to the cavity. The increased vacuum system pumps out air from the core box to maintain constant pressure inside the core box and ensure the compaction of the sand core. The present invention is especially suitable for relatively large sand core and sand core with complicated structure.
Description
Technical field
The present invention relates to industrial casting field, particularly a kind of core-shooting device, this device of a kind of application carry out the method for core shooting.And a kind of core shooting control system.
Background technology
Core-shooting device is at present at industrial casting field efficient coremaking equipment comparatively commonly used, different according to the adhesive that the shape of core, size and core sand use, existing core-shooting device can be divided into usually: (1) hot box shoot core machine: this core-shooting device is to be the core making machine of adhesive with the thermosetting resin, heat hardening core in core box; (2) shell core machine: this core-shooting device covers a kind of resin film in advance in order to make the shell core on the sand grain surface of core sand, hardens in the core box of heating; (3) cold-box core blower: this core-shooting device is to be the core making machine of adhesive with the resin, the cure of blowing in the cold conditions core box; (4) common core shooter: this core-shooting device adopts the vibration sand hopper to add sand, is used to be manufactured on the core of the outer sclerosis of core box.The operation principle of above-mentioned core-shooting device is that compressed air enters rapidly in the core shooting tube during core shooting, passes the layer of sand space and promotes sand grains, forms the sand air-flow, makes core sand inject core box at a high speed, obtains consolidation in the filling core box.
Yet owing to be subjected to the influence of external atmosphere pressure, the gas in the core box can't be discharged outside the core box rapidly, thereby moment generation high pressure makes that the core shooting barometric gradient in the core box reduces, and has reduced the core shooting dynamics of gas, causes the degree of packing of core to descend.For the wedge angle position, easier some the interior wedge angle positions of core box that make owing to air pressure is excessive extremely form partial high pressure evening especially, and then core sand can't arrive this wedge angle position, produces and penetrates unreal phenomenon, thereby influence the degree of packing of core.Special in bigger core, this phenomenon is particularly outstanding.
So those skilled in the art press for develops a kind of evenly core shooting, obtains core-shooting device, core shooting method and the core shooting control system of the core degree of packing preferably.
Summary of the invention
Technical problem to be solved by this invention provides a kind of core-shooting device, can't arrive this wedge angle position in order to solve in the prior art owing to core sand, produces the unreal problem of penetrating, especially in order to solve core or the not enough problem of the baroque core degree of packing greatly.
The present invention also provides a kind of core shooting method and core shooting control system, in order to guarantee realization and the application in practice of above-mentioned core-shooting device.
For solving the problems of the technologies described above, the embodiment of the invention discloses a kind of core-shooting device, comprise core box with air-breather, described core-shooting device also comprises:
Cover the sealing plate of described core box outer surface, have cavity between described sealing plate and the core box; The air-breather of described core box is communicated with described cavity;
With, be positioned on the described sealing plate bleeding point that is communicated with described cavity;
And, the vacuum system that is connected by pipeline with described bleeding point.
Preferably, described vacuum system comprises core shooting control valve, vacuum control valve, air accumulator and vavuum pump, and described air accumulator is connected between described bleeding point and the vavuum pump by pipeline; Described at least one core shooting control valve is installed on the pipeline between described bleeding point and the air accumulator; Described at least one vacuum control valve is installed on the described vavuum pump.
Preferably, described air-breather is the steam vent that runs through described core box inner surface and outer surface.
Preferably, described device also comprises:
Be arranged on the venting plug in the described steam vent, the adjustable size joint of described venting plug.
Preferably, described core box comprises first core box and second core box, and, the core box inner chamber that surrounds by the inner surface of first core box and second core box.
Preferably, described device also comprises:
Be arranged on the core shooting mouth on described core box inner chamber top.
The embodiment of the invention also discloses a kind of method that described core-shooting device carries out core shooting of using, comprising:
Start described vacuum system and generate vacuum passage, control the vacuum in the described core box;
Judge whether described vacuum reaches predetermined value, if then begin core shooting;
Judge whether the described core shooting time satisfy prerequisite, if then finish core shooting;
Close described vacuum passage.
Preferably, described core shooting method also comprises:
Close described vacuum system.
Preferably, described vacuum system comprises vacuum control valve and vavuum pump, and described vacuum system setting up procedure comprises:
Open vavuum pump generation vacuum passage by opening described vacuum control valve, control the vacuum in the described core box;
And described vacuum passage is closed step and is comprised:
Close described vacuum passage by closing described vacuum control valve.
Preferably, described vacuum system comprises vacuum control valve and vavuum pump, and described vacuum system is closed step and comprised:
Close described vavuum pump by closing described vacuum control valve.
Preferably, described vacuum system also comprises core shooting control valve and air accumulator, and described core shooting begins step and comprises:
Open air accumulator and carry out the core shooting operation by opening described core shooting control valve;
And described core shooting end step comprises:
Finish the core shooting operation by closing described core shooting control valve.
The embodiment of the invention also discloses a kind of core shooting control system, comprising:
Start unit: be used to start described vacuum system and generate vacuum passage, control the vacuum in the described core box;
Core shooting operating unit: be used to control the startup and the end of core shooting operation;
First judging unit: be used to judge whether described vacuum reaches predetermined value, if then trigger the core shooting operating unit and start the core shooting operation;
Second judging unit: be used to judge whether the described core shooting time satisfy prerequisite, if then trigger the core shooting operating unit and finish the core shooting operation;
Closing unit: be used to close described vacuum passage.
Preferably, described core shooting control system also comprises:
Abort unit: be used to close described vacuum system.
Compared with prior art, the embodiment of the invention has the following advantages:
The present invention is by increasing vacuum system, and by the continuous gas bleeding of vacuum system, any position in core box does not all have air pressure and gathers, and makes air pressure keep constant, thereby has guaranteed the degree of packing at each position of core.More effective for big core or baroque core especially.
Description of drawings
Fig. 1 is the structural representation of a kind of core-shooting device embodiment 1 of the present invention;
Fig. 2 is the structural representation of several common core boxes in the prior art;
Fig. 3 is a kind of structural representation of common metal core box;
Fig. 4 is the structural representation of a kind of core-shooting device embodiment 2 of the present invention;
Fig. 5 is the structural representation of a kind of core-shooting device embodiment 3 of the present invention;
Fig. 6 is a kind of flow chart that above-mentioned core-shooting device carries out the method embodiment 1 of core shooting of using of the present invention;
Fig. 7 is the flow chart of a kind of core shooting method embodiment 2 of the present invention;
Fig. 8 is the structured flowchart of a kind of core shooting control system embodiment of the present invention.
The specific embodiment
For above-mentioned purpose of the present invention, feature and advantage can be become apparent more, the present invention is further detailed explanation below in conjunction with the drawings and specific embodiments.
One of core idea of the embodiment of the invention is, by increase vacuum system on original core shooter, by the continuous gas bleeding of vacuum system, any position in core box does not all have air pressure and gathers, make air pressure keep constant, thereby guaranteed the degree of packing at each position of core.
With reference to Fig. 1, show the structural representation of a kind of core-shooting device embodiment 1 of the present invention, specifically comprise with lower member:
Cover the sealing plate 112 of described core box 111 outer surfaces, have cavity 113 between described sealing plate 112 and the core box 111, the air-breather 110 of described core box 111 is communicated with described cavity 113;
With, be positioned on the described sealing plate 112 bleeding point 114 that is communicated with described cavity 113;
And, the vacuum system 116 that is connected by pipeline 115 with described bleeding point 114.
Be well known that core box is a technological equipment of core sand being made core, core box can be divided four kinds of common core box, hot box, shell core box and cold-boxs according to core-making method.In the present embodiment, described core box can in the prior art any, for example, the structural representation of several existing core boxes is as shown in Figure 2.Wherein a is the single-sided open core box, and b is the single face knockout core, and c is vertical opposite opened core box, and d1 and d2 are the horizontal opposite opened core box with opening.
Core box can be made by timber, plastics, metal or other material, preferably makes in the present embodiment with metal, for example, aluminium alloy, cast iron, copper alloy or steel etc.In a kind of common metal core box, can comprise core box body and location, knockout mechanism etc.Core chamber, core shooting mouth, air discharge duct, venting plug or hole etc. can be set on described core box body.With reference to figure 3, show a kind of structural representation of transmission case body core box, in this transmission case body core box, 1 and 8 is first core box and second core box body; 2,3,15 and 17 are anti-abrasive disc; 4,5,6,7 and 11 are the location clamping element; 9,10 and 12 is air-breather; 13 and 14 for inserting.Core box is fixed on the workbench usually, to satisfy the work requirements of core-shooting device.Certainly, for different purposes and different types of core box, other parts of those skilled in the art's relative set all are feasible, for example, be provided with hot box heating plate, water-cooled core shooting plate, penetrate and lead sand lump etc. in the head, the present invention does not limit this.
With reference to figure 4, show the structural representation of a kind of core-shooting device embodiment 2 of the present invention, in the present embodiment, described air-breather is that the steam vent 110 that runs through described core box inner surface and outer surface (only illustrates one among the figure, be generally a plurality of), preferably, the size of described steam vent can be regulated according to the size of core sand, is arranged in the size scope that prevents the ejaculation of core sand particle.As another kind of solution, can also venting plug 117 be set in described steam vent, preferably, the size of described venting plug 117 also can be regulated according to the size of core sand particle, is arranged on equally in the size scope that prevents the core ejaculation.More preferably, described venting plug is dismountable, in this case, for the core sand of different size, can realize by the venting plug of changing different sizes, thereby need not to change core box, effectively reduces the cost of core-shooting device.
Core box in the present embodiment can comprise first core box and second core box, and, the core box inner chamber that surrounds by the inner surface of first core box and second core box.In practice, core sand can enter in this core box inner chamber and form core.Preferably, core sand can enter the core box inner chamber from the core shooting mouth, wherein, the position of described core shooting mouth should guarantee that air-flow is unimpeded, with the dead angle that minimizing is choked with resentment, is convenient to exhaust, thereby, described core shooting mouth preferably is arranged on the top of described core box inner chamber, certainly, and according to the type and the application of different core shooters, it all is feasible penetrating the sand mouth in the other parts setting, for example, be arranged on the left side or the right of core box inner chamber, the present invention does not need this to limit.As shown in Figure 4, in the present embodiment, described first core box is left half core box 1111, and described second core box is 1112, the inner surface of a described left side half core box 1111 and second core box 1112 surrounds core box inner chamber 1113, and core shooting mouth 118 is arranged on the top of described core box inner chamber 1113.
Be understandable that those skilled in the art realize that based on any existing core-shooting device with core box of air-breather the present invention is feasible, the present invention does not need this to limit.
In the above-described embodiments, all can produce negative pressure, rely on draught head to produce the high speed negative-pressure air-flow by adopting vacuum system, in core box and cavity, form and have the vacuum of certain vacuum degree, thereby when core shooting, make any position of core box inner chamber all not have air pressure and gather, to guarantee the degree of packing of core.
Preferably, described vacuum system comprises core shooting control valve, vacuum control valve, air accumulator and vavuum pump, and described air accumulator is connected between described bleeding point and the vavuum pump by pipeline; Described at least one core shooting control valve is installed on the pipeline between described bleeding point and the air accumulator; Described at least one vacuum control valve is installed on the described vavuum pump.With reference to figure 5, show the structural representation of a kind of core-shooting device embodiment 3 of the present invention, preferably, described vacuum system comprises a core shooting control valve 1161, is used to control the startup of core shooting process and close; Two vacuum control valves 1162 and 1163 are used to control the startup of vavuum pump and cut out; Air accumulator 1164 is used for buffer gas, reduces the system pressure fluctuation, keeps steady air current and helping air supply, thereby effectively avoids core sand to penetrate unreal situation, further guarantees to adopt the present invention to obtain the degree of packing of core; Vavuum pump 1165 is used to produce negative pressure, vacuumizes.Described air accumulator 1164 is connected between described bleeding point 114 and the vavuum pump 1165 by pipeline 115; Described core shooting control valve 1161 is installed on the pipeline 115 between described bleeding point 114 and the air accumulator 1164; Described two vacuum control valves 1162 and 1163 are directly installed on the both sides of described vavuum pump.Be understandable that, those skilled in the art are provided with two core shooting control valves according to actual needs, a vacuum control valve perhaps is set, or to be provided with arbitrarily all be feasible, in addition, described air accumulator also can be provided with according to actual needs or be provided with by those skilled in the art, and the present invention does not all need this to limit.
When using the preferred embodiment of the present invention, can at first open vacuum control valve 1162 and 1163 and start vavuum pump 1165 generation negative pressure, generate vacuum passage, air-flow 115 vacuumizes in the core box inner chambers 1113 that core box 1111 and 1112 forms by cavity 113 by the road, when the vacuum of core box inner chamber reaches predetermined value, then open core shooting control valve 1161 and open air accumulator 1164, and the beginning core shooting; When reaching predetermined core shooting after the time, then close this core shooting control valve 1161 and finish core shooting.Because when ordinary production, in order to boost productivity, vavuum pump does not generally cut out, and just closes vacuum control valve, thereby close vacuum passage, only after all core shooting work come to an end, just close vavuum pump, therefore, can close vacuum passage by closing vacuum control valve 1162 and 1163, also can make vavuum pump stop to produce negative pressure when needed, thereby close whole vacuum system, finish the process of a core shooting.Be well known that vacuum is meant the rare book degree of the gas that is under the vacuum state, described predetermined vacuum level can be guarded against experience as required by those skilled in the art and be provided with arbitrarily, and the present invention does not limit this.Based on this application, owing to do not have air pressure in the core box, and because the continuous gas bleeding of vavuum pump, any position in core box does not all have air pressure and gathers, thereby makes the air pressure in the air accumulator keep constant, has guaranteed the degree of packing at each position of core.Need to prove that vacuum of the present invention is meant industrial vacuum, promptly refer to the gas compartment that air pressure is littler than a standard atmospheric pressure.
Because existing vacuum system is mainly used in and directly vacuumizes between being evacuated, to obtain to satisfy the required vacuum of technological requirement, thereby those skilled in the art to adopt any vacuum system of the prior art all be feasible, the present invention does not need this to limit.
With reference to figure 6, show a kind of flow chart that above-mentioned core-shooting device carries out the method embodiment 1 of core shooting of using of the present invention, specifically may further comprise the steps:
Wherein, the predetermined value of described vacuum and core shooting time can by those skilled in the art as required or experience be provided with arbitrarily in practice, the present invention does not limit this.
Because when ordinary production, in order to boost productivity, vavuum pump does not generally cut out, just close vacuum control valve, thereby close vacuum passage, yet after all core shooting work come to an end, may need to close vacuum system, in this case, present embodiment can also comprise step: close described vacuum system.
Preferably, described vacuum system comprises at least one vacuum control valve and vavuum pump, in this case, described step 601 can for: open vavuum pump and generate vacuum passage by opening described vacuum control valve, control the vacuum in the described core box; And, described step 604 can for: close described vacuum passage by closing described vacuum control valve.In this case, described step of closing vacuum system can for: close described vavuum pump by closing described vacuum control valve.
More preferably, described vacuum system also comprises at least one core shooting control valve and air accumulator, in this case, the process that core shooting begins in the described step 602 can for: open air accumulator and carry out core shooting operation by opening described core shooting control valve; The process that core shooting finishes in the described step 603 can for: finish the core shooting operation by closing described core shooting control valve.
With reference to figure 7, show the flow chart of a kind of core shooting method embodiment 2 of the present invention, specifically may further comprise the steps:
In practice, when the application embodiment of the invention is carried out core shooting, can at first open vacuum control valve and start vavuum pump generation negative pressure, air-flow vacuumizes in the core box inner chamber by cavity by the road, when the vacuum of core box inner chamber reaches predetermined value, then open the core shooting control valve and start air accumulator, and the beginning core shooting; When reaching predetermined core shooting after the time, then close this core shooting control valve and finish core shooting.Because when ordinary production, in order to boost productivity, vavuum pump does not generally cut out, and just closes vacuum control valve, thereby close vacuum passage, only after all core shooting work come to an end, just close vavuum pump, therefore, can close vacuum passage by closing vacuum control valve, also can make vavuum pump stop to produce negative pressure when needed, thereby close whole vacuum system, finish the process of a core shooting.The present invention can significantly solve because the gas that atmospheric pressure influences in the core box can't be discharged outside the core box rapidly, thereby moment generation high pressure makes that the core shooting barometric gradient in the core box reduces, and the core shooting dynamics reduces, degradation problem under the degree of packing of core.The most effective when for the wedge angle position, penetrating unreal phenomenon especially and making big core or baroque core.
For guaranteeing the application of the present invention in existing each class of electronic devices and computer system, with reference to figure 8, the present invention also provides a kind of core shooting control system, specifically comprises with lower unit:
Start unit 801: be used to start described vacuum system and generate vacuum passage, control the vacuum in the described core box;
Core shooting operating unit 802: be used to control the startup and the end of core shooting operation;
First judging unit 803: be used to judge whether described vacuum reaches predetermined value, if then trigger core shooting operating unit 802 and start the core shooting operation;
Second judging unit 804: be used to judge whether the described core shooting time satisfy prerequisite, if then trigger core shooting operating unit 802 and finish the core shootings operation;
Closing unit 805: be used to close described vacuum passage.
Preferably, present embodiment can also comprise abort unit: be used to close described vacuum system.Described core shooting control system can be used in numerous general or special purpose computingasystem environment or the configuration.For example: personal computer, server computer, handheld device or portable set, plate equipment, multicomputer system, the system based on microprocessor, set top box, programmable consumer-elcetronics devices, network PC, minicom, mainframe computer, comprise DCE of above any system or equipment or the like.In addition, described core shooting control system can also be described in the general context of the computer executable instructions of being carried out by computer, for example program module.Usually, program module comprises the routine carrying out particular task or realize particular abstract, program, object, assembly, data structure or the like.Also can in DCE, put into practice the present invention, in these DCEs, by by communication network connected teleprocessing equipment execute the task.In DCE, program module can be arranged in the local and remote computer-readable storage medium that comprises memory device.
More than a kind of core-shooting device provided by the present invention, a kind of core shooting method and a kind of core shooting control system are described in detail, used specific case herein principle of the present invention and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (13)
1, a kind of core-shooting device comprises the core box with air-breather, it is characterized in that, also comprises:
Cover the sealing plate of described core box outer surface, have cavity between described sealing plate and the core box; The air-breather of described core box is communicated with described cavity;
With, be positioned on the described sealing plate bleeding point that is communicated with described cavity;
And, the vacuum system that is connected by pipeline with described bleeding point.
2, device as claimed in claim 1 is characterized in that, described vacuum system comprises core shooting control valve, vacuum control valve, air accumulator and vavuum pump, and described air accumulator is connected between described bleeding point and the vavuum pump by pipeline; Described at least one core shooting control valve is installed on the pipeline between described bleeding point and the air accumulator; Described at least one vacuum control valve is installed on the described vavuum pump.
3, device as claimed in claim 1 is characterized in that, described air-breather is the steam vent that runs through described core box inner surface and outer surface.
4, device as claimed in claim 3 is characterized in that, also comprises:
Be arranged on the venting plug in the described steam vent, the adjustable size joint of described venting plug.
5, the described device of each claim as described above is characterized in that described core box comprises first core box and second core box, and, the core box inner chamber that surrounds by the inner surface of first core box and second core box.
6, device as claimed in claim 5 is characterized in that, also comprises:
Be arranged on the core shooting mouth on described core box inner chamber top.
7, a kind of application rights requires 1 described core-shooting device to carry out the method for core shooting, it is characterized in that, comprising:
Start described vacuum system and generate vacuum passage, control the vacuum in the described core box;
Judge whether described vacuum reaches predetermined value, if then begin core shooting;
Judge whether the described core shooting time satisfy prerequisite, if then finish core shooting;
Close described vacuum passage.
8, core shooting method as claimed in claim 7 is characterized in that, also comprises:
Close described vacuum system.
9, core shooting method as claimed in claim 7 is characterized in that, described vacuum system comprises vacuum control valve and vavuum pump, and described vacuum system setting up procedure comprises:
Open vavuum pump generation vacuum passage by opening described vacuum control valve, control the vacuum in the described core box;
And described vacuum passage is closed step and is comprised:
Close described vacuum passage by closing described vacuum control valve.
10, core shooting method as claimed in claim 8 is characterized in that, described vacuum system comprises vacuum control valve and vavuum pump, and described vacuum system is closed step and comprised:
Close described vavuum pump by closing described vacuum control valve.
11, as claim 7,8,9 or 10 described core shooting methods, it is characterized in that described vacuum system also comprises core shooting control valve and air accumulator, described core shooting begins step and comprises:
Open air accumulator and carry out the core shooting operation by opening described core shooting control valve;
And described core shooting end step comprises:
Finish the core shooting operation by closing described core shooting control valve.
12, a kind of core shooting control system is characterized in that, comprising:
Start unit: be used to start described vacuum system and generate vacuum passage, control the vacuum in the described core box;
Core shooting operating unit: be used to control the startup and the end of core shooting operation;
First judging unit: be used to judge whether described vacuum reaches predetermined value, if then trigger the core shooting operating unit and start the core shooting operation;
Second judging unit: be used to judge whether the described core shooting time satisfy prerequisite, if then trigger the core shooting operating unit and finish the core shooting operation;
Closing unit: be used to close described vacuum passage.
13, core shooting control system as claimed in claim 12 is characterized in that, also comprises:
Abort unit: be used to close described vacuum system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200710130368XA CN100496804C (en) | 2007-07-18 | 2007-07-18 | Core-shooting device, core-shooting method and core-shooting controlled system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200710130368XA CN100496804C (en) | 2007-07-18 | 2007-07-18 | Core-shooting device, core-shooting method and core-shooting controlled system |
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| Publication Number | Publication Date |
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| CN101077516A true CN101077516A (en) | 2007-11-28 |
| CN100496804C CN100496804C (en) | 2009-06-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB200710130368XA Active CN100496804C (en) | 2007-07-18 | 2007-07-18 | Core-shooting device, core-shooting method and core-shooting controlled system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102078923A (en) * | 2010-12-09 | 2011-06-01 | 苏州苏铸成套装备制造有限公司 | Screen device |
| CN104444307A (en) * | 2014-11-12 | 2015-03-25 | 苏州明志科技有限公司 | Full-automatic core box replacing mechanism of core making machine |
| CN115582518A (en) * | 2022-10-24 | 2023-01-10 | 台州誉迎科技有限公司 | Control system and control method of core shooter |
| CN115990660A (en) * | 2023-03-24 | 2023-04-21 | 无锡锡南科技股份有限公司 | Core making die for spiral water channel core of hydrogen energy motor shell |
-
2007
- 2007-07-18 CN CNB200710130368XA patent/CN100496804C/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102078923A (en) * | 2010-12-09 | 2011-06-01 | 苏州苏铸成套装备制造有限公司 | Screen device |
| CN104444307A (en) * | 2014-11-12 | 2015-03-25 | 苏州明志科技有限公司 | Full-automatic core box replacing mechanism of core making machine |
| CN104444307B (en) * | 2014-11-12 | 2016-08-31 | 苏州明志科技有限公司 | The full-automatic core box of a kind of core making machine changes mechanism |
| CN115582518A (en) * | 2022-10-24 | 2023-01-10 | 台州誉迎科技有限公司 | Control system and control method of core shooter |
| CN115582518B (en) * | 2022-10-24 | 2023-11-28 | 台州誉迎科技有限公司 | Control system and control method of core shooter |
| CN115990660A (en) * | 2023-03-24 | 2023-04-21 | 无锡锡南科技股份有限公司 | Core making die for spiral water channel core of hydrogen energy motor shell |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100496804C (en) | 2009-06-10 |
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Effective date of registration: 20071019 Address after: Heilongjiang city of Qigihar Province, Tiefeng District Factory Road No. 36 Applicant after: Qiqihar Rail Traffic Equipment Co., Ltd. Address before: Tiefeng District of Qigihar City, Heilongjiang province of China Road No. 10 Applicant before: Qiqihaer Railway Stock (Group) Co Ltd, China Beifang Stock Group |
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Application publication date: 20071128 Assignee: Mudanjiang Jinyuan Draw Gear and Draft Gear Manufacturing Limited Company Assignor: Qiqihar Rail Traffic Equipment Co., Ltd. Contract record no.: 2013990000320 Denomination of invention: Core-shooting device, core-shooting method and core-shooting controlled system Granted publication date: 20090610 License type: Exclusive License Record date: 20130613 |
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