CN103434075A - Sealing device - Google Patents
Sealing device Download PDFInfo
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- CN103434075A CN103434075A CN2013104211488A CN201310421148A CN103434075A CN 103434075 A CN103434075 A CN 103434075A CN 2013104211488 A CN2013104211488 A CN 2013104211488A CN 201310421148 A CN201310421148 A CN 201310421148A CN 103434075 A CN103434075 A CN 103434075A
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- raw material
- magnetic block
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- sealing device
- material pail
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Abstract
The invention provides a sealing device for sealing a material absorbing pipe and a raw material barrel of a foaming machine. The sealing device comprises a connecting main body with a threaded hole for sleeving the material absorbing pipe, a magnetic block, and a sealing ring arranged between the magnetic block and the raw material barrel, wherein one side of the magnetic block is magnetically fitted with the connecting main body, the other side of the magnetic block is magnetically fitted with the raw material barrel, and the magnetic block is provided with a through hole matched with the threaded hole; when the sealing device is used for sealing the foaming machine and the raw material barrel, the material absorbing pipe is arranged in the threaded hole in the connecting main body through a thread, the magnetic block is adsorbed on the connecting main body, the sealing ring is fixed on the other side of the connecting main body, the magnetic block is adsorbed on the raw material barrel, and the sealing connection between the connecting main body and the raw material barrel is realized. The sealing device provided by the invention has the advantages that a magnetic line is pressed on the sealing ring, so that the raw material barrel is sealed, the fixation of the sealing ring is realized, the connection through a threaded connecting piece is avoided, the influence on the thread caused by raw material crystallization is avoided, the connective stability is effectively improved, and a sealing effect is improved.
Description
Technical field
The present invention relates to the 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 polyurethane component raw material (isocyanates component and PPG component) is coordinated by the performance indications requirement, then through foaming machine, can produce even, qualified foamed product.Particularly, this foaming machine be 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 Raw material pail that is contained with polyurethane is connected with the suction tube of foaming machine, supplements so that foaming machine can carry out raw material at any time.In order to prevent that urethane raw and airborne contact with moisture from producing crystallization, volatilize pernicious gas and usually Raw material pail and suction tube are threaded connection, preferably adopt the material such as polytetrafluoroethylene (PTFE) to do a head.
But, due to the isocyanide acids ester in Raw material pail, very responsive to air humidity, easily, with airborne moisture generation chemical reaction, cause material crystal, and the raw material after crystallization easily covers at the screw thread place, so that the screw thread of sealing filament head can't with the screw thread combination seal of Raw material pail, cause the further crystallization of raw material, affect the normal use of raw material, surface defects of products, even cause 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 purpose 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, suction tube and Raw material pail for the seal foaming machine wherein, comprising:
Connect main body, described connection main body has the screwed hole for sheathed described suction tube;
One side can be fitted with the described main body magnetic that is connected, 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 magnetic block is separated with described Raw material pail.
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 along the axis direction of described installation through hole so that described magnetic block with described Raw material pail, separate support post;
Support that post is connected and for controlling the described drive rod moved to post with described.
Preferably, in above-mentioned sealing device, the described post that supports is through being opened in connecting hole on described connection main body hinged by cam with described drive rod.
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 is a plurality of to post, and circumferentially being evenly arranged along described magnetic block.
Preferably, in above-mentioned sealing device, also comprise the air dryer be communicated with the suction tube that described screwed hole inside is set.
Preferably, in above-mentioned sealing device, described air dryer with described be connected between main body to be provided with air can be imported to the check valve in described Raw material pail.
Preferably, in above-mentioned sealing device, described air dryer is the 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 the connection main body, and this connection main body has the screwed hole for sheathed suction tube; One side can be fitted with being connected main body magnetic, 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, while being sealed between to foaming machine and Raw material pail, at first by suction tube, by screw thread, be arranged in the screwed hole that connects main body, be set in the suction tube outside so that connect main body, then magnetic block is adsorbed on and connects on main body, and at the 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 is by the absorption affinity of magnetic, realized fixing to sealing ring, finally realizes the sealing between Raw material pail and suction tube, avoided being threaded connection the connection of part, thereby avoided the impact of material crystal double thread, and effectively improved the stability connected, improved sealing effectiveness.
The accompanying drawing explanation
The structural representation of the sealing device that Fig. 1 provides for the embodiment of the present invention;
The top view that Fig. 2 is Fig. 1;
The cutaway view that Fig. 3 is A-A direction in Fig. 2.
The specific embodiment
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 better the present invention program, 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; One side can be fitted with being connected main body 1 magnetic, 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, while being sealed between to foaming machine and Raw material pail, at first by suction tube, by screw thread, be arranged in the screwed hole 11 that connects main body 1, be set in the suction tube outside so that connect main body 1, then magnetic block 2 is adsorbed on and connects on 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 is by the absorption affinity of magnetic, realized fixing to sealing ring 3, finally realizes the sealing between Raw material pail and suction tube, avoided being threaded connection the connection of part, thereby avoided the impact of material crystal double thread, and effectively improved the stability connected, improved sealing effectiveness.
In order to guarantee the fixing stability to sealing ring 3, to improve sealing effectiveness, usually can use the magnetic block 2 that magnetic is stronger in specific embodiment, this makes the absorption affinity between magnetic block 2 and Raw material pail stronger.When magnetic block 2 is separated with Raw material pail, need to overcome great absorption affinity, cause waste greatly to the labour, in view of the above problems, the sealing device also comprises the demagnetization device for magnetic block 2 is separated with Raw material pail.In actual production, can select the mode of logical magnetic to be magnetized to magnetic block 2, then by the mode of disconnected magnetic, cancel the magnetic of magnetic block 2, thereby discharge magnetic block 2, realize separating 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) that is opened in the axis direction of magnetic block 2; Be arranged on and install in through hole, and can along the axis direction that through hole is installed move so that magnetic block 2 and Raw material pail offset separate support post 5.When needs separate Raw material pail with foaming machine, support post 5 so that move along axis in its through hole of installation at magnetic block 2 by control, thereby make to offset to post 5 and Raw material pail, thereby Raw material pail is applied to external force, finally make magnetic block 2 separate with Raw material pail.For the ease of being controlled supporting post 5, also provide in the application and be connected and can control the drive rod 4 moved to post 5 to post 5.Be convenient to the control of user to the sealing device by the driving of drive rod 4, and controlled to post 5 by 4 pairs of drive rods are set, simple in structure, production cost is low.
Particularly, the above-mentioned end away from Raw material pail that supports post 5 is connecting connecting hole (not shown) on main body 1 hinged by cam with drive rod 4 through offering.For the ease of drive rod 4 is installed, guarantee that the movement locus to post 5 is the axis direction along connecting hole simultaneously, in the application will to post 5 through magnetic block 2 time through connecting main body 1, and by cam, with drive rod 4, be connected connecting the end of main body 1 away from Raw material pail.In the time of can making controlling drive rod 4 rotating cam on the basis of above-mentioned setting, realize that the support post 5 hinged with cam moves along connecting hole, finally realize offseting to Raw material pail.
Known by the description to above-mentioned demagnetization device, the core of this demagnetization device is that Raw material pail is applied to external force, therefore, also can offset by the expansion link by cylinder and Raw material pail in practice, to realize separating of Raw material pail and magnetic block 2.
Further, in embodiment, above-mentioned connection main body 1 has the axially extended groove (not marking in figure) along screwed hole 11, and connecting hole is opened in the bottom of groove.By above-mentioned setting, can reduce the length to post 5, to increase the intensity of supporting post 5, saved processing cost.Shape and size for groove can be set according to different needs, at this, do not do detailed restriction.
Even in order to guarantee the Raw material pail externally applied forces, reduce the wearing and tearing to Raw material pail simultaneously, what in the application, provide supports post 5 for a plurality of, and circumferentially being evenly arranged along magnetic block 2.Particularly, the number that should support post 5 be 6, in order to realize supporting being synchronized with the movement of post 5, in the application, then the relative drive rod 4 to post 5 can be connected and was controlled.In practice, in order to reduce the complexity of structure, can only arrange two and support post 5, and each supports post 5 and is connected with a drive rod 4, and by a connecting rod, two drive rods 4 are linked together, with realization to two Synchronization Control to post 5.
In practice, in suction tube suction process, the pressure of the Raw material pail after sealing can be more and more less, along with reducing gradually of pressure, suction tube can't carry out suction to Raw material pail again, and causes the waste of material, has improved production cost, Given this, the sealing device provided in the application also comprises the air dryer 6 that the suction tube interior with being arranged on screwed hole 11 is communicated with.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, with atmospheric pressure and external atmosphere pressure in the balance Raw material pail, thereby the utilization rate of the material in the raising Raw material pail, thereby reduce production costs.
Further in embodiment, cause the loss to material in order to prevent material in Raw material pail from entering air dryer 6, air dryer 6 in one embodiment is provided with the check valve 61 that air can be imported in screwed hole 11 with being connected between main body.Air can only be imported to the check valve 61 of screwed hole 11 by arranging, thereby avoid the refluence phenomenon of material in Raw material pail, avoid the waste of material.
Particularly, this air dryer 6 is the molecular-sieve type drier, with the moisture in great absorbed air, prevents that airborne moisture from being contacted 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; only be to provide a kind of concrete shape that connects main body 1 herein; and the concrete shape of magnetic block 2; but, be not limited in above-mentioned shape in the application, the magnetic block 2 that there is said structure and function for other be connected main body 1 also in protection domain.
In this specification, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is and the difference of other embodiment that between each embodiment, identical similar part is mutually referring to getting final product.
To the above-mentioned explanation of the disclosed embodiments, make professional and technical personnel in the field can realize or use the present invention.Multiple modification to these embodiment will be apparent for those skilled in the art, and General Principle as defined herein can be in the situation that do not break away from the spirit or scope of the present invention, realization in other embodiments.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty, all will be protected.
Claims (10)
1. a sealing device, suction tube and Raw material pail for the 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;
One side can be fitted with described main body (1) magnetic that is connected, 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 magnetic block (2) is separated with described Raw material pail.
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 along the axis direction of described installation through hole so that described magnetic block (2) with described Raw material pail, separate support post (5);
Support that post (5) is connected and for controlling the described drive rod (4) that supports post (5) movement with described.
4. sealing device according to claim 3, is characterized in that, the described post (5) that supports is through being opened in connecting hole on described connection main body (1) hinged by cam with described drive rod (4).
5. sealing device according to claim 4, is characterized in that, described connection main body (1) has along the axially extended groove of 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, described is a plurality of to post (5), and circumferentially being evenly arranged along 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 described screwed hole (11) is set 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 the connection between main body (1).
9. sealing device according to claim 7, is characterized in that, described air dryer (6) is the molecular-sieve type drier.
10. according to the described sealing device of claim 1-9 any one, it 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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103434075A true CN103434075A (en) | 2013-12-11 |
| CN103434075B 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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| Country | Link |
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| CN (1) | CN103434075B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107576139A (en) * | 2017-09-12 | 2018-01-12 | 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 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107576139A (en) * | 2017-09-12 | 2018-01-12 | 合肥美的电冰箱有限公司 | Sealing device |
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| Publication number | Publication date |
|---|---|
| CN103434075B (en) | 2015-11-18 |
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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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