TWM242298U - Centrifugal spray apparatus for painting - Google Patents

Description

M242298 V. Creation Description 0) [Technical Field of New Type] This creation is about a paint centrifugal spraying mechanism, which is particularly about · centrifugal spray paint with a nozzle and a rotating screen, which is applicable ^ ^ A spraying mechanism for coating the inner surface of a tube. 'Mouth [previous technology] In rocket engine engineering, the inside of the engine steel shell needs to be sprayed with a rubber compound, which is usually called the liner [1 iner]. Glue formed between the columns. Because the formula of the compound contains a relatively high amount of solids, such as graphite, the sprayer or other sprayers cannot spray the compound. For example, the spray nozzles of general sprayers, airless sprayers and electrostatic sprayers are relatively small, so they are not suitable for spraying high solid content paints or high viscosity paints containing solids or particles, and even easily cause the problem of paint clogging the nozzles. & Generally speaking, the rubber spraying of rocket engines uses three conventional methods ^: 1. Manual brushing method, which has the disadvantages of uneven brushing, bubble generation, easy flow, and degumming, etc. Problems such as huge labor, low painting efficiency, and difficult to control painting quality, therefore, the manual painting method needs to be further improved. 2. The centrifugal flow filling method, which is adopted by the French SNPE company, places the motive steel shell horizontally or silkworm on a rotating machine. When the rotating machine τ moves the steel shell of the engine at high speed, the liner material is simultaneously poured into the inner surface of the steel shell of the engine. Under the centrifugal force generated by the rotation, the poured rubber compound is evenly distributed on or on the inner surface of the steel casing of the engine. Although the centrifugal flow spreading method has the effect of uniformly spreading, the air bubbles inside the lining rubber

ts \ PK9294.ptd Page 9 M242298 V. Creative Instructions (2) It is not easy to rule out so it still has technical shortcomings. The centrifugal flow method needs further improvement. 3. Vertical spraying method, which is adopted by American company AEROJET. It is more suitable for the small steel rocket engine shell, but it is not suitable for large rockets, and has the disadvantages of not washing, so the vertical spraying method Law needs further improvement. The conventional rubber spraying method of Jian Luzhi's rocket engine needs to be further improved. Therefore, it is necessary to develop another spraying method to overcome the above technical shortcomings. There are 4α here. This work improves the above shortcomings by using a rotating nozzle and Two: Take the second screen to perform the centrifugal spray paint, so that the paint can be evenly coated on the inner surface of a government to improve the spraying quality. [New content] 'Species ;: Centrifugal spraying mechanism' ”Spoon net cloth on :: Dingli ~ type spray paint 'So paint titanium uniform = cloth on-the inner surface of the official tube' to make this creation have enhanced spraying Quality on-line for 1 force its use-Nozzle and-Rotary filter screen rotation: Yes; drive the rotation = creation; paint centrifugal spraying "two ::::: two η send tube group, -rotary nozzle group, first : 动 ί :,

Parts, a first power element and a rotating machine. Erjing Power 7L bucket and rotary nozzle group are used to carry the lacquer rotary nozzle group to move. The conveying pipe set is used to === drive the paint bucket and splice the paint bucket and rotate spray. Page C: \ Logo-5 \ Five Continents \ PK9294.ptd 008440 M242298 Creative Instructions (3) _— head The group sends paint by car. ... ,, m Rotate, so that the rotating second power element is used to drive the rotating nozzle group to carry 4 coating nozzles: group centrifugal spray paint. This rotary machine is used in industry. Jing, and rotate the tube to be coated for spray coating. The centrifugal spray paint of this creation is a stepping motor. The power element of the sprayer mechanism can be set optionally. The paint centrifugal spray turtle I _ of this creation is an air motor. The No.-power element of the earth-moving mechanism can optionally be provided with the rotating parts and a rotating wheel set of the paint centrifugal spraying mechanism created by t. 3. Nai 3 Power π [Embodiment]

Make sure that the other features, characteristics, and advantages of the book are clear, and that they are good ;;;; Take the best embodiment of this creation, and cooperate with the following one to reveal the preferred embodiment of this creation: paint centrifugal spraying machine: Ha The second figure reveals the centrifugal spraying of the paint of the preferred embodiment of the present invention:]: a partial enlarged combination view of the turn = group; and the fourth figure is a reference diagram of the spraying action state of the μ centrifugal spraying mechanism of the example paint. ^ As shown in the first figure, the best implementation of this creation =-a platform 10, a paint bucket 20, a delivery tube group 30, a head group 40 'a first power element 50' a second power element 60 and-rotation page 11 C: \ Logo-5 \ Five Continents \ PK9294.ptd 008441 M242298

008442 M242298 V. Creation instructions (5) is a stepping motor. The first power element rotation nozzle group 40 is moved. Please refer to the first setting. The second power element rotation is 40. Please refer to the first tube 71 again. And the force-transmitting element 7 2 and one for driving the coil tube 7 1 are rotated, please refer to the third 60 to drive the rotation of the rotating filter 43 At this time, the effect of removing air bubbles through the interior of the paint please Referring to the second transfer stage 70, the moving stage 70 having a predetermined cylinder 71 is to be painted, please refer to the fourth, which uses a suitable piece 50 for driving. Figures 1 and 2 show that the fixing member 60 has a rotating spraying group as shown in the figure, and sends the tube to be coated. The rotating wheel group 73 rotates the rotating group 73 to avoid the picture shown. The paint is bound to be moved by the rotating filter screen 43 by the fixing device, and the conveying rotating shaft 61 and the head group 40 are separated from the rotating carrier 71. The. The power is turned, the spin is sprayed with paint, the spraying operation is performed, and the sprayed paint on the screen 4 3 is rotated. The spin filter is arranged on the carrier 1 0 side. The barrel 20, the conveying pipe group 30 and the rotary power element 60 are preferably selected on the nozzle rod 31 of the pipe group 30. It is used to drive the rotary spray head to spray paint by heart. The stage 70 is used to carry the tube to be coated. The rotating stage 70 is also provided with a moving element 72 (such as an air motor). A wheel set 73 drives the to-be-coated to produce a vertical flow phenomenon. In the above, when the paint of the second power element 'is sprayed by the nozzle to be spray-sprayed into fine particles, the net 43 is broken up, thus achieving the elimination picture shown before the spraying operation is started. The rotary stop is placed at a predetermined position, which is distanced from the rotary nozzle group 'to allow the rotary nozzle group 40 to extend into the tube to be coated. At this time, the rotary nozzle group 40 has not entered the inside of the rotary tube 71. Pictured ’When the spraying operation starts, the rotation 嗔

C: \ Logo-5 \ Five Continents \ PK9294.ptd 00844?

Page 13 M242298 V. Creation instructions (6) The head group 40 is driven by the first power element 50 and enters the inside of the to-be-coated tube 71 of the rotary stage 70, and then is driven by the first power element 50. The rotary nozzle group 40 performs a reciprocating movement, such as a forward or backward movement. At this time, the second power element 60 drives the rotary nozzle group 40 to rotate at an appropriate rotation speed (for example, more than 3,000 revolutions), so as to perform centrifugal spray paint on the inner surface of the tube 71 to be coated. . At the same time, the rotary stage 70 is used to carry the tube 71 to be coated, and can transport the tube 71 to be coated. The rotating stage 70 is further provided with a third power element 72 and a rotating wheel set 73. The third power element 72 (such as an air motor) is used to drive the rotating wheel group 73 to rotate, and the rotating wheel group 73 drives the tube 71 to be coated to rotate at an appropriate rotation speed to avoid the phenomenon of vertical flow of the sprayed paint. . Please refer to the first figure again. When the spraying operation is stopped, the rotary nozzle group 40 is driven by the first power element 50 to exit the inside of the tube 71 to be coated of the rotary stage 70. At this time, the rotating wheel set of the rotating stage 70 can continue to drive the tube 71 to be coated to keep rotating. 4 The manual brushing method has the disadvantages of consuming huge labor, low brushing efficiency, and difficult to control the brushing quality; the conventional centrifugal flow method has the disadvantage of difficult to eliminate air bubbles inside the rubber; the vertical spray method is not suitable for large Rockets' have the disadvantages of being difficult to clean. In contrast, the centrifugal coating mechanism of the original paint uses the nozzle 41 and the rotating screen 43 to perform a centrifugal spray paint, which is suitable for spraying the inner surface of the tube 71 to be coated. ^ Although this creation has been disclosed in the aforementioned preferred embodiment, it is not intended to limit the creation of 'any person skilled in the art, without departing from the essence of this creation' ^, can make various changes and modifications, so this Creative protection

M242298 V. Creation Instructions (7) The definition in the scope of the attached patent shall prevail.

C: \ Logo-5 \ Five Continents \ PK9294.ptd Page 15 00S445 M242298 Simple illustration of the drawing [Simplified illustration of the drawing] Figure 1 ·· The structure of the paint centrifugal spraying mechanism of the preferred embodiment of the present invention is shown. Fig. 2: An exploded perspective view of the rotary nozzle set of the paint centrifugal spraying mechanism of the preferred embodiment of the present invention. Fig. 3: Partially enlarged combination drawing of the rotating nozzle group in Fig. 1 of this creation. Fig. 4: Reference drawing of the spraying operation state of the paint centrifugal spraying mechanism of the preferred embodiment of the present invention. Figure number description:

10 Stage 11 Slide rail group 20 Paint bucket 21 Pressure gauge 30 Conveying pipe group 31 Nozzle rod 32 Paint pipe 40 Rotating nozzle group 41 Nozzle 42 Rotating frame 43 Rotating screen 50 First power element 60 Second power element 61 Rotating shaft 70 Rotating table 71 Tube to be coated 72 Third power element 73 Rotating wheel set C: \ Logo-5 \ FiveContinents \ PK9294.ptd Page 16 008448

Claims (1)

M242298 1. A paint spraying mechanism comprising: a paint bucket for containing paint; a conveying pipe group connected to the paint bucket for conveying paint; a rotating spray head group using centrifugation Spray paint; and a first power element for driving rotation of the rotary nozzle group; wherein when the spraying operation is performed, the first power element drives the rotary nozzle group to perform at an appropriate speed Rotate for centrifugal spray paint 2. The paint spraying mechanism according to item 1 of the scope of patent application, further comprising a carrier and a second power element. The carrier is used to carry the paint bucket and the rotating spray head set. 'And the second power element drives the paint bridge and the rotating nozzle group to reciprocate. 3. The paint spraying mechanism according to item 2 of the scope of the patent application, wherein the carrier is provided with a slide group, the paint bucket and the rotating nozzle group are along the slide rail 4. The paint spraying is according to the item 1 of the patent scope The coating mechanism further comprises a rotating machine table for carrying a tube to be coated, and rotating the tube to be coated for spraying operation. 5. The paint spraying mechanism according to item 4 of the scope of the patent application, wherein the rotating machine further includes a third power element and a rotating wheel set for rotating the tube to be coated. 6. The paint spraying mechanism according to item 1 of the scope of the patent application, wherein the paint bucket is a pressure vessel ’and is filled with a certain degree of compressed air or C: \ Logo-5 \ Five Continents \ PK9294.ptd Page 17 008447 M242298 VI. Patent Application Scope Nitrogen. 7. The paint spraying mechanism according to item 6 of the scope of patent application, wherein the paint bucket further includes a pressure gauge. 8. The paint spraying mechanism according to item 1 of the scope of patent application, wherein the conveying pipe group has at least one paint pipe, and the nozzle rod is used to fix the first power element. 9. The paint spraying mechanism according to item 1 of the scope of patent application, wherein the rotary spray head group includes a nozzle connected to a paint pipe of the conveying pipe, so that paint is supplied from the paint pipe to the nozzle. 10. The paint spraying mechanism according to item 1 of the scope of the patent application, wherein the rotating spray head group includes a nozzle, a rotating frame and a rotating filter. 11. The paint spraying mechanism according to item 10 of the scope of patent application, wherein the first power element has a rotating shaft connected to the rotating frame of the rotating spray head group. 12 2. The paint spraying mechanism according to item 10 of the scope of patent application, wherein the filter is a replaceable filter. C: \ Logo-5 \ FiveContinents \ PK9294.ptd Page 18 Coffee 448