CN103434075B - A kind of sealing device - Google Patents
A kind of sealing device Download PDFInfo
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- CN103434075B CN103434075B CN201310421148.8A CN201310421148A CN103434075B CN 103434075 B CN103434075 B CN 103434075B CN 201310421148 A CN201310421148 A CN 201310421148A CN 103434075 B CN103434075 B CN 103434075B
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Abstract
The invention provides a kind of sealing device, for suction tube and the Raw material pail of seal foaming machine, wherein, comprise the connection main body of the screwed hole had for sheathed suction tube; Can fit with being connected main body magnetic in side, the magnetic block that opposite side can be fitted with Raw material pail magnetic, and this magnetic block has the through hole coordinated with screwed hole; Be arranged on the sealing ring between magnetic block and Raw material pail.To when sealing between foaming machine and Raw material pail, suction tube is arranged on by screw thread in the screwed hole connecting main body, magnetic block is adsorbed on and connects in main body, at opposite side fixed seal ring, this magnetic block being adsorbed on Raw material pail, realizing connecting being tightly connected between main body and Raw material pail.The application exerts pressure to seal Raw material pail by the magnetic line of force to sealing ring, achieve fixing sealing ring, avoid the connection being threaded connection part, avoid the impact of material crystal double thread, effectively improve the stability of connection, improve sealing effectiveness.
Description
Technical field
The present invention relates to polyurethane processing technique field, particularly a kind of sealing device.
Background technology
Foaming machine has another name called polyurethane foaming machine, is the special equipment of polyurethane foam plastics perfusion foaming.During work, as long as coordinated by performance indications requirement by polyurethane component raw material (isocyanate component and PPG component), then can produce even, qualified foamed product through foaming machine.Particularly, this foaming machine is with PPG and polyisocyanates under the number of chemical promoter effects such as blowing agent, catalyst and emulsifying agent, after chemical reaction and obtain foamed plastics.
At present, the suction tube of the Raw material pail with foaming machine that are contained with polyurethane is connected, carries out raw material at any time to enable foaming machine and supplement.In order to prevent the contact with moisture in urethane raw and air from producing crystallization, volatilizing pernicious gas and usually Raw material pail and suction tube being threaded connection, preferably adopt the materials such as polytetrafluoroethylene (PTFE) to do a head.
But, due to the isocyanide acids ester in Raw material pail, very responsive to air humidity, the moisture generation chemical reaction easily and in air, causes material crystal, and the raw material after crystallization easily covers at screw thread place, with make the screw thread of sealing filament head cannot with Raw material pail be screwed sealing, cause the further crystallization of raw material, affect the normal use of raw material, surface defects of products, even causes raw-material waste.
Therefore, how providing a kind of hermetically-sealed construction, to improve the sealing effectiveness between Raw material pail and foaming machine, is the current technical issues that need to address of those skilled in the art.
Summary of the invention
The object of this invention is to provide a kind of hermetically-sealed construction, to improve the sealing effectiveness between Raw material pail and foaming machine.
For solving the problems of the technologies described above, the invention provides following technical scheme:
A kind of sealing device, for suction tube and the Raw material pail of seal foaming machine, wherein, comprising:
Connect main body, described connection main body has the screwed hole for sheathed described suction tube;
Can fit with the described main body magnetic that is connected in side, the magnetic block that opposite side can be fitted with described Raw material pail magnetic, and described magnetic block has the through hole coordinated with described screwed hole;
Be arranged on the sealing ring between described magnetic block and described Raw material pail.
Preferably, in above-mentioned sealing device, also comprise the demagnetization device for being separated with described Raw material pail by magnetic block.
Preferably, in above-mentioned sealing device, described demagnetization device comprises:
Be opened in the installation through hole of the axis direction of described magnetic block;
Be arranged in described installation through hole, and can move described magnetic block is separated with described Raw material pail along the axis direction of described installation through hole support post;
To be connected and for controlling the described drive rod supporting post movement with the described post that supports.
Preferably, in above-mentioned sealing device, described to support post hinged by cam with described drive rod through the connecting hole be opened in described connection main body.
Preferably, in above-mentioned sealing device, described connection main body has the axially extended groove along described screwed hole, and described connecting hole is opened in described bottom portion of groove.
Preferably, in above-mentioned sealing device, described to support post be multiple, and is evenly arranged along the circumference of described magnetic block.
Preferably, in above-mentioned sealing device, also comprise the air dryer be communicated with the suction tube arranging described screwed hole inside.
Preferably, in above-mentioned sealing device, described air dryer is provided with the check valve that air can be imported in described Raw material pail with described connection between main body.
Preferably, in above-mentioned sealing device, described air dryer is molecular-sieve type drier.
Preferably, in above-mentioned sealing device, described connection main body is cylinder, and described magnetic block is cylindrical magnet.
The invention provides a kind of sealing device, for suction tube and the Raw material pail of seal foaming machine, wherein, comprise connection main body, and this connection main body has the screwed hole for sheathed suction tube; Can fit with being connected main body magnetic in side, the magnetic block that opposite side can be fitted with Raw material pail magnetic, and this magnetic block has the through hole coordinated with screwed hole; Be arranged on the sealing ring between magnetic block and Raw material pail.By above-mentioned setting, to when sealing between foaming machine and Raw material pail, first suction tube is arranged on by screw thread in the screwed hole connecting main body, suction tube outside is set in make connection main body, then magnetic block is adsorbed on and connects in main body, and at opposite side fixed seal ring, and by magnetic, this magnetic block is adsorbed on Raw material pail, realize connecting being tightly connected between main body and Raw material pail.The application, by the absorption affinity of magnetic, achieves fixing sealing ring, finally realizes the sealing between Raw material pail and suction tube, namely the connection being threaded connection part is avoided, thus avoid the impact of material crystal double thread, effectively improve the stability of connection, improve sealing effectiveness.
Accompanying drawing explanation
The structural representation of the sealing device that Fig. 1 provides for the embodiment of the present invention;
Fig. 2 is the top view of Fig. 1;
Fig. 3 is the sectional view in A-A direction in Fig. 2.
Detailed description of the invention
Core of the present invention is to provide a kind of hermetically-sealed construction, to improve the sealing effectiveness between Raw material pail and foaming machine.
In order to make those skilled in the art person understand the present invention program better, below in conjunction with drawings and embodiments, the present invention is described in further detail.
Please refer to shown in Fig. 1-Fig. 3, the embodiment of the invention discloses a kind of sealing device, for suction tube (not shown) and the Raw material pail (not shown) of seal foaming machine, wherein, comprise and connect main body 1, and this connection main body 1 has the screwed hole 11 for sheathed suction tube; Can fit with being connected main body 1 magnetic in side, the magnetic block 2 that opposite side can be fitted with Raw material pail magnetic, and this magnetic block 2 has the through hole coordinated with screwed hole 11; Be arranged on the sealing ring 3 between magnetic block 2 and Raw material pail.
By above-mentioned setting, to when sealing between foaming machine and Raw material pail, first suction tube is arranged on by screw thread in the screwed hole 11 connecting main body 1, suction tube outside is set in make connection main body 1, then magnetic block 2 is adsorbed on and connects in main body 1, and at opposite side fixed seal ring 3, and by magnetic, this magnetic block 2 is adsorbed on Raw material pail, realize connecting being tightly connected between main body 1 and Raw material pail.The application, by the absorption affinity of magnetic, achieves fixing sealing ring 3, finally realizes the sealing between Raw material pail and suction tube, namely the connection being threaded connection part is avoided, thus avoid the impact of material crystal double thread, effectively improve the stability of connection, improve sealing effectiveness.
In order to ensure the fixing stability to sealing ring 3, to improve sealing effectiveness, usually can use the magnetic block 2 that magnetic is stronger in a particular embodiment, this makes the absorption affinity between magnetic block 2 and Raw material pail stronger.When being separated with Raw material pail magnetic block 2, need to overcome great absorption affinity, cause waste greatly to labour, in view of the above problems, sealing device also comprises the demagnetization device for being separated with Raw material pail by magnetic block 2.In actual production, the mode of logical magnetic can be selected to magnetize to magnetic block 2, then be cancelled the magnetic of magnetic block 2 by the mode of disconnected magnetic, thus release magnetic block 2, realize being separated of Raw material pail and suction tube.
In one embodiment, provide a kind of concrete demagnetization device, it comprises: the installation through hole (not marking in figure) being opened in the axis direction of magnetic block 2; Be arranged on and install in through hole, and can move that magnetic block 2 and Raw material pail are offseted along the axis direction installing through hole and be separated support post 5.When Raw material pail is separated with foaming machine by needs, moves along axis in the installation through hole of magnetic block 2 to make it by controlling to support post 5, thus make to offset to post 5 and Raw material pail, thus external force is applied to Raw material pail, finally make magnetic block 2 be separated with Raw material pail.For the ease of controlling supporting post 5, additionally providing in the application and be connected with to post 5 and the drive rod 4 to post 5 movement can be controlled.Be convenient to the control of user to sealing device by the driving of drive rod 4, and control supporting post 5 by arranging drive rod 4, structure is simple, and production cost is low.
It is particularly, above-mentioned that to support one end away from Raw material pail of post 5 hinged by cam with drive rod 4 in the connecting hole (not shown) connected in main body 1 through offering.For the ease of installing drive rod 4, ensure to support the movement locus of post 5 is axis direction along connecting hole simultaneously, connect main body 1 by supporting post 5 through passing while magnetic block 2 in the application, and be connected with drive rod 4 by cam in connection main body 1 one end away from Raw material pail.When the basis of above-mentioned setting can make the rotating cam at control drive rod 4, realize the support post 5 hinged with cam and move along connecting hole, final realization offseting to Raw material pail.
By known to the description of above-mentioned demagnetization device, the core of this demagnetization device applies external force to Raw material pail, therefore, in practice also by the expansion link of cylinder and Raw material pail being offseted, to realize being separated of Raw material pail and magnetic block 2.
In further embodiment, above-mentioned connection main body 1 has the axially extended groove (not marking in figure) in threadingly hole 11, and connecting hole is opened in the bottom of groove.By above-mentioned setting, the length to post 5 can be reduced, to increase the intensity to post 5, save processing cost.Shape and size for groove can set according to different needs, do not do detailed restriction at this.
Even in order to ensure Raw material pail externally applied forces, reduce the wearing and tearing to Raw material pail, what provide in the application supports post 5 for multiple, and is evenly arranged along the circumference of magnetic block 2 simultaneously.Particularly, the number should supporting post 5 is 6, in order to realize being synchronized with the movement to post 5, the relative drive rod 4 supporting post 5 can be carried out connecting then controlling in the application.In practice, in order to reduce the complexity of structure, only can arrange two and supporting post 5, and each post 5 that supports is connected with a drive rod 4, and by a connecting rod, two drive rods 4 are linked together, to realize the Synchronization Control of two being supported to post 5.
In practice, due in suction tube suction process, the pressure of the Raw material pail after sealing can be more and more less, along with the reduction gradually of pressure, suction tube then cannot carry out suction to Raw material pail again, and causes the waste of material, improves production cost, Given this, the sealing device provided in the application also comprises the air dryer 6 be communicated with the suction tube be arranged in screwed hole 11.By increasing air dryer 6, make at suction tube from Raw material pail during absorbing material, outside air enters in suction tube by air dryer 6, enter again in Raw material pail, to balance atmospheric pressure and external atmosphere pressure in Raw material pail, thus the utilization rate of material in raising Raw material pail, thus reduce production cost.
Further in embodiment, cause the loss to material to prevent the material in Raw material pail from entering air dryer 6, air dryer 6 is in one embodiment provided with the check valve 61 that air can be imported in screwed hole 11 with being connected between main body.By arranging the check valve 61 that air can only be imported screwed hole 11, thus avoiding the refluence phenomenon of material in Raw material pail, avoiding the waste of material.
Particularly, this air dryer 6 is molecular-sieve type drier, with the moisture in great absorbed air, prevents the moisture in air from contacting material in Raw material pail, and makes the problem of material crystallization.
On the basis of technique scheme; the connection main body 1 provided in the application is cylinder; and magnetic block 2 is cylindrical magnet; merely provide a kind of concrete shape connecting main body 1 herein; and the concrete shape of magnetic block 2; but, be not limited in above-mentioned shape in the application, for other magnetic blocks 2 with said structure and function be connected main body 1 also in protection domain.
In this description, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually see.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty and all will be protected.
Claims (10)
1. a sealing device, for suction tube and the Raw material pail of seal foaming machine, is characterized in that, comprising:
Connect main body (1), described connection main body (1) has the screwed hole (11) for sheathed described suction tube;
Can fit with described main body (1) magnetic that is connected in side, the magnetic block (2) that opposite side can be fitted with described Raw material pail magnetic, and described magnetic block (2) has the through hole coordinated with described screwed hole (11);
Be arranged on the sealing ring (3) between described magnetic block (2) and described Raw material pail.
2. sealing device according to claim 1, is characterized in that, also comprises the demagnetization device for being separated with described Raw material pail by magnetic block (2).
3. sealing device according to claim 2, is characterized in that, described demagnetization device comprises:
Be opened in the installation through hole of the axis direction of described magnetic block (2);
Be arranged in described installation through hole, and can move described magnetic block (2) is separated with described Raw material pail along the axis direction of described installation through hole support post (5);
To be connected and for controlling the described drive rod (4) to post (5) movement with the described post (5) that supports.
4. sealing device according to claim 3, is characterized in that, described to support post (5) hinged by cam with described drive rod (4) through the connecting hole be opened on described connection main body (1).
5. sealing device according to claim 4, is characterized in that, described connection main body (1) has the axially extended groove along described screwed hole (11), and described connecting hole is opened in described bottom portion of groove.
6. sealing device according to claim 3, is characterized in that, the described post (5) that supports for multiple, and is evenly arranged along the circumference of described magnetic block (2).
7. sealing device according to claim 1, is characterized in that, also comprises the air dryer (6) that the suction tube inner with arranging described screwed hole (11) is communicated with.
8. sealing device according to claim 7, is characterized in that, described air dryer (6) is provided with the check valve (61) that air can be imported in described Raw material pail with described connection between main body (1).
9. sealing device according to claim 7, is characterized in that, described air dryer (6) is molecular-sieve type drier.
10. the sealing device according to any one of claim 1-9, is characterized in that, described connection main body (1) is cylinder, and described magnetic block (2) is cylindrical magnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310421148.8A CN103434075B (en) | 2013-09-16 | 2013-09-16 | A kind of sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310421148.8A CN103434075B (en) | 2013-09-16 | 2013-09-16 | A kind of sealing device |
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| Publication Number | Publication Date |
|---|---|
| CN103434075A CN103434075A (en) | 2013-12-11 |
| CN103434075B true CN103434075B (en) | 2015-11-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310421148.8A Active CN103434075B (en) | 2013-09-16 | 2013-09-16 | A kind of sealing device |
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| CN (1) | CN103434075B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107576139B (en) * | 2017-09-12 | 2019-10-29 | 合肥美的电冰箱有限公司 | Sealing device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202125627U (en) * | 2011-07-01 | 2012-01-25 | 石家庄铁道大学 | Gas and solid leakage-free discharge sealing device |
| CN102489365A (en) * | 2011-12-30 | 2012-06-13 | 苏州市东立机械有限公司 | Bowl mill bucket wheel and feed inlet sealing device |
| CN202301965U (en) * | 2011-09-30 | 2012-07-04 | 河北钢铁集团滦县司家营铁矿有限公司 | Magnetic sealing ring for mine ball mill |
-
2013
- 2013-09-16 CN CN201310421148.8A patent/CN103434075B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202125627U (en) * | 2011-07-01 | 2012-01-25 | 石家庄铁道大学 | Gas and solid leakage-free discharge sealing device |
| CN202301965U (en) * | 2011-09-30 | 2012-07-04 | 河北钢铁集团滦县司家营铁矿有限公司 | Magnetic sealing ring for mine ball mill |
| CN102489365A (en) * | 2011-12-30 | 2012-06-13 | 苏州市东立机械有限公司 | Bowl mill bucket wheel and feed inlet sealing device |
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| Publication number | Publication date |
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| CN103434075A (en) | 2013-12-11 |
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Inventor after: Jiang Ye Inventor after: Jiang Yesun Ming Wei Inventor before: Li Guonan Inventor before: Li Guonan Chen Wenzhong |
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