JPS58501622A - Processing equipment for cylindrical hollow structures using blast cleaning - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] Technical field of processing equipment for cylindrical hollow structures by plastic cleaning The invention relates to a device according to claim 1. This type of device is inside and external simultaneous sandblasting or blast cleaning, especially for gold. Genus - Used when processing mother ig.

Background technology Such equipment typically transports the blast chamber and the ring structure into and out of the blast chamber. Move it from the last room.

It is equipped with a means for transporting. 1 of steel, crystal, or any other suitable cleaning material The last sand is sprayed onto the surface to be treated by compressed air through a nozzle.

It is known in the prior art to treat the inner surface of the pipe with a so-called spear device. ), this W & position is equipped with 1 nozzle *, and the nozzle is covered with 1 & 11 holes. While advancing axially with respect to ifK, this pipe is simultaneously rotated on its axis by rotating means. It is set so that it is rotated around . /f type outer surface is usually in manual # is cleaned by a knife using the same spear device used for internal cleaning. It's here.

However, when these conventional techniques were clarified, plastic sand remained in the pipe. This may tend to occur and must be removed by a separate blow with compressed air. There are some drawbacks. Furthermore, cleaning operations performed on the inner and outer surfaces of the treated structure are The fact that they are carried out separately makes the process long and disadvantageous.At the same time, There is no sufficient flexibility to process pipes of different diameters with the same equipment It was difficult.

The present invention solves the above-mentioned drawbacks and simultaneously performs sander last/plast cleaning on the inner and outer surfaces. The aim is to provide a completely new type of equipment for the treatment of cylindrical hollow structures by It is in.

Disclosure of invention The present invention is based, for example, on the following idea.

A combined transport and rotation device is used, and the device is juxtaposed with a 21I wheel. The structure to be processed is placed on these wheel sets. The wheel is shaped like a stone and can rotate around its axis. When the linear position of the wheels in the set changes, the rotary prosthesis transforms into a transfer device. 1) The structure to be processed is transferred into the plast chamber and into the flast chamber by the transfer device. You can move from there.

The equipment is equipped with two spear mills, and with this device The inner cylinder and outer surface of the target structure can be cleaned at the same time.

The pressure used on the Plast Spear is selected to be high enough to allow the rotation of the wheelset. The speed should be set appropriately so that the cleaning material is pushed out from inside the ring structure and flows automatically. The item is selected.

y) In detail, the equipment according to the invention is mainly defined in the characterizing part of claim 1. About 4! It is a sign.

With the invention, certain advantages are achieved. Therefore, the internal and external cleanliness is the same. Significant time savings are achieved when the pressure and rotational speed are corrected. By selecting the correct cleaning material, the cleaning material is automatically removed from inside the treated structure. In particular, it is possible to avoid unnecessary wastage of time for further cleaning. That's it. Due to the swivelable wheelset, transport and rotation can be done by one device It is efficient and quick.

Hereinafter, the present invention will be explained in more detail with reference to specific embodiments shown in the accompanying drawings.

Brief description of the drawing Figure 1 is a schematic side view of the apparatus according to the present invention 11 before the start of the plast process. FIG. 2 is an explanatory diagram of the main cell 0 of FIG. 1 during the blasting process.

FIG. 3 is a view of the device according to the invention from the end located next to the supply table; Ru.

FIG. 4 is a cross-sectional view of the apparatus according to the invention in the blast chamber.

FIG. 5 is a side view showing the mutual relationship between the sand supply unit and the plasto spear.

Figure 6 is a combined view of Figure 5, showing this device from the end next to the spear device. Ru.

FIG. 7 is a side view of the plasto spear at the end next to the nozzle.

The easternmost form for carrying out an invention In the starting state shown in FIG. The wheel is moved from the supply table I shown in FIG. 3 by the Δ-arm 10. Lucet z has been moved on. As will become clearer from Figures 3 and 4. These foil sets are spaced coaxially from each other and are of size O. An equal number of wheel rims 2 and a number of e.g. Some of these wheels 2 turn freely. On the other hand, some of them are motor-driven, and some of them are inverter-operated. Ru.

As mainly shown in FIG. 4, the wheel 2 is rotated by the journal bearing 6. attached to the V-shaped bottom of the last chamber to achieve axial movement of the structure 1. In the radial plane, the wheel is displaced from its rotational position to its transfer position. The Table 9 stone is attached to the journal bearing of each wheel 2 so that This is caused by a longitudinal rod 8 connected to a repak. In this way, both All wheels in wheelset 2 are automatically shifted to the same angular position at any time. It will be done.

After pi f1 is moved to the blast chamber shown in Fig. 2 by wheelset 2, Eel 2 is located in the blast chamber while pipe 1 is supported by its wheelset 2. It returns to the radial plane by pivoting around its axis. At the same time, A pier similar to pier 19 and lower pier 23 located just below the upper pier. The device is similar to the sand supply container 28SO connected to both spears, as well as the pipe to be treated! 1 and 122, to be connected as The pipe moves while rotating, and at the same time the lower spear 2J is compressed by the f2 strike sand. While air is being blown onto the inner and outer surfaces of the pipe from nozzles 20 and 24, respectively. The fist compressed air device (not shown) moving below the pipe is + 71! It is connected at the rear of the supply capacity @xz*soo. These containers xx , sa, plast sand is installed in the pipes xtz, ax and shell pipes. into the spear 11128 through a closed valve (not shown). Spear and container association The suspension body moves on the wheelset SZ along the rail J3. In addition, lower spear 2 3 is supported at one end by its support wheel 25.116 in the O-shaped bottom groove. It is arranged so that it can be held. On the other hand, the upper spear 19 has an elastic guide wheel set. It is mounted in the center so that it can move inside the arm f1 by the bits 21 and 112. There is.

Plast Spear 19. III are both at least approximately equal in size, preferably are connected to a common pressure source and the pressure to be used is between 5 and 15 par, most appropriate. is set to approximately 10 bar. In addition, the wheelset 2 is the pipe to be treated 1. at a speed of 20 to 70 r,p,m, preferably about 30 to 40 r-plm- When arranged to rotate, due to the combined effect of pressure and applied rotation speed, , No. 9 The f last sand dance phenomenon in f1 occurs. For this reason, Plastosa The powder is automatically removed from the pipe 1 through one end to the bottom of the blasting chamber 13. be done. The nine sand blown from the lower spear 2S is also at the bottom K of the blast chamber 13. I'll lower it. All this used sand is f? 150 vertical strokes at the bottom of the strike emperor ”y to xti to a similar longitudinal trough 17 installed below the bottom The screw conveyor installed in The sand will be transported for further collection.

Industrial applicability As can be seen from FIGS. 3 and 4, the present invention includes 7721 1Q 7n. international search report

Claims (1)

[Claims] 1 f last room (13) and moving the structure to be treated (1) axially into the plus F chamber and out of the Zost chamber; each is rotatable in a position oblique to the moving direction of the target structure (1)), structures on their supports that move axially and rotate about their axes. Several wheels (2) preferably of equal size that can be made simultaneously Two transfer wheel sets (2 to 8) installed in parallel, and the plastic sand nozzle. A spear device (19° 28) and a compressed air source for supplying compressed air into the spear device (xy, xs); Sand supply means (11) for feeding f2 strike sand into the spear device (1e, zs) 1, 10), and the wheel (2) is moved from the above diagonal movement position to both wheels. Wheel axes (5)-IIX of rulesets (2-8), their common geometric It can be pivoted to a rotational position on the axis, and the geometric axis of the characterized in that it is at least substantially parallel to the direction of movement of the physical structure (1); A metal pipe is attached to the cylindrical hollow structure (1), 41 by plastic cleaning. Equipment for internal and external processing. 2 The wheel set (2 to 8) supports the structure to be treated (1) by 20 to 70 r, p, m , most suitably arranged to rotate at a speed of about 30-40 r-pom O. 2. A device according to claim 1, characterized in that: 3. Wheel (2) in both wheel sets (2 to 8) has a common shaft rod of 8t or A radial horizontal or It is characterized by being pivoted so that it can be turned to a remote position at the same time. Apparatus according to claim 1. 4. Equipped with wheels (2), sleds made of materials such as kagago, and tires (3). 2. The device according to claim 1, wherein