Summary of the invention
The present invention is directed to the problems referred to above, a kind of device is provided, be used for the external coating of composite pipe.The method that adopts this device to realize have simple and fast, coating quality good, pollute little primer painting method.Be particularly useful for the required lacquer dress of pipe production in enormous quantities.
In order to achieve the above object, the device of a kind of coating prime lacquer on external surface of composite pipe material of the present invention, comprise that top is provided with the box body of coating inlet, two middle side part correspondences of a projecting direction of box body offer the box body circular hole, be positioned at the box body outside flexible rubber slab of sealing and fixing respectively at box body circular hole place, both sides, offer circular hole on the plate at each corresponding described box body circular hole in rubber slab middle part.Wherein, treat the aperture of the external diameter of application composite material pipe greater than circular hole on the plate, and less than the aperture of box body circular hole.
Under the optimal way, the device of coating prime lacquer on external surface of composite pipe material of the present invention, its box body are flat box body, and the spacing between the perforate both sides is narrow, become flat square box shape; The middle part of rubber slab is outwards outstanding, thereby the spacing at two rubber slab middle parts is greater than the box body spacing.
In addition, the position that is lower than the box body circular hole at box body offers the blowdown hole, and the stopple or the valve that are used for the opening and closing dumping pit.
And under another kind of optimal way,, a rubber pneumatic bag being set in box body inner bottom part position in order in painting operations, to reach the coating liquid level variation, this air bag is provided with and is in communication with the outside the charge/discharge gas mouth that can open and seal.In the japanning stage, use the compressed air swelling gasbag, promote the position of coating liquid level, make tubing to be painted place among the coating, thereby carry out painting operations.After japanning is finished, get the pipe stage, the compressed air in the air bag is emitted, the coating liquid level descends, and until the position that is lower than tubing, takes out tubing and gets final product.
Adopt the method for apparatus of the present invention, compared with prior art, have characteristics as shown in the table:
Characteristic point |
Prior art |
The inventive method |
1. coating quality |
Difference |
Good |
2. coating efficiency |
Low |
High |
3. stock utilization |
Low |
High |
4. environmental pollution |
Greatly |
Little |
5. production cost |
High |
Low |
To sum up, the device of coating prime lacquer on external surface of composite pipe material of the present invention has advantages such as simple and fast, coating quality is good, pollution is little.
The specific embodiment
The present invention is contained in priming paint in the special box, be equipped with in the both sides of box two openings and the rubber slab that closely contacts with outer pipe wall, during coating prime lacquer, load onto the priming paint of capacity in box, box moves reciprocatingly on pipe is axial, and priming paint just has been coated on the tube outer wall uniformly like this, after application is finished, tubing is unloaded, carry out the application of next pipe root, the pipe that unloads is transferred to next procedure.Therefore,
The structure of box body is a flat-square shaped, have the circular hole bigger than pipe diameter in the both sides of box body, rubber slab is positioned at the both sides of box body, be fixed together with box body, and the junction seals, the perforate of rubber slab with the junction of tubing, and the perforate of rubber slab and tubing is close-fitting, rubber slab also be ring-type and at the position of centre and outwards outstanding.Coating is to utilize the bottom of rubber slab to contact with pipe outer surface coating is spread upon on the tubing.
Below in conjunction with specific embodiment, further specify the present invention with reference to the accompanying drawings.
The present invention realizes the schematic diagram of composite material pipe outer surface primer painting as shown in Figure 1.Wherein, be used for the device of application, comprise that top is provided with the box body 3 of coating inlet 2.Two middle side part correspondences of a projecting direction of box body offer the box body circular hole, are used to treat wearing of application composite material pipe 5.In addition, be positioned at the box body outside flexible rubber slab 1 of sealing and fixing respectively at box body circular hole place, both sides, corresponding box body circular hole offers circular hole on the plate at the middle part of each rubber slab 1.As shown in Figure 1, treat the aperture of the external diameter of application composite material pipe 5, greater than the aperture (not shown) of circular hole on the plate less than the box body circular hole.
Under the optimal way, the device of above-mentioned coating prime lacquer on external surface of composite pipe material, the position that is lower than the box body circular hole at box body offers the blowdown hole, and is provided for the stopple or the valve (not shown) of opening and closing dumping pit, for use in releasing of coating.In addition, under a kind of preferred implementation, the bottom 4 of box body 3 is flat, and the spacing between the perforate both sides is narrow, becomes flat square box shape; And the spacing between the concrete both sides is much smaller than other sizes of box body in general according to the length decision of application tubing, therefore is known as flat box body.As shown in Figure 1, under the optimum way, the middle part of rubber slab is outwards outstanding, thereby the spacing at two rubber slab middle parts is greater than the box body spacing.
Under another kind of optimal way, device of the present invention comprises box body 3 equally, and box body is provided with the box body circular hole.Also comprise the elastic rubber slab 1 that circular hole on the plate is set.Preferred version is, in box body inner bottom part position a rubber pneumatic bag is set, and this air bag is provided with and is in communication with the outside the charge/discharge gas mouth that can open and seal.In the japanning stage, use the compressed air swelling gasbag, promote the position of coating liquid level, make tubing to be painted place among the coating, thereby carry out painting operations.After japanning is finished, get the pipe stage, the compressed air in the air bag is emitted, the coating liquid level descends, and until the position that is lower than tubing, takes out tubing and gets final product.
The present invention also provides the method for utilizing said apparatus to realize coating prime lacquer on external surface of composite pipe material.
At first, preparation is used for the device of application as mentioned above.Secondly, the composite material pipe that will treat application penetrates circular hole on the plate of both sides rubber slab, makes the tight described rubber slab of contact of outer wall of composite material pipe;
At last, behind the coating of in box body, packing into, make box body drive rubber slab composite material pipe axially on do relatively reciprocating motion, thereby by the application that contact realization priming paint of rubber slab with the composite material pipe outer wall.
Under the optimal way, in order to realize the operationization of tubing application, after finishing primer painting, coating should be derived, and taking-up composite material pipe, another root is treated that the composite material pipe of application penetrates circular hole on the plate, repeat the step of feeding, painting, so that realize the painting operations of next root even more composite material pipes.
The above; only be the preferable specific embodiment of the present invention; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; be equal to replacement or change according to technical scheme of the present invention and inventive concept thereof, all should be encompassed within protection scope of the present invention.