JPS58367B2 - Hifukuzaimakitsukesouchi - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for wrapping a sheathing material in the form of a string or tape around a large number of pipes or rods, and relates to a device for winding a sheathing material around a large number of pipes or rods in a continuous manner. The objective is to obtain an efficient automatic device that can perform the following tasks.

It is often necessary to wrap a covering material in the form of tape or string around the outside surface of a pipe or rod for heat or electrical insulation, but the traditional wrapping method is as shown in Figure 1. Covering material 3 is placed on core metal 2 whose one end is fixed by chuck 1.
. This was an extremely inefficient process in which a cladding tube was formed by removing it from the core metal, which was then cut to match the length of the tube, etc., and the tube, etc. was inserted into the cladding tube.

This conventional method is not suitable for mass production because it takes time and effort to fit the cladding, tube, and rod together, and because it involves the use of air-core cladding, it is prone to deformation and breakage, especially since the cladding material can withstand the above operations. Since it must have a certain degree of rigidity, it has drawbacks such as being subject to limitations due to the material.

The present invention provides an efficient coating wrapping device that eliminates these drawbacks of the conventional methods.

The present invention will be described below with reference to the embodiment shown in FIG.
The tubes 6 cut to a predetermined size are stacked in a single row in a storage tank 7 with an open bottom.

The lowermost tube rests on rotating rollers 8,8.

An opening/closing gate 9 is installed on the bottom side of the storage tank and is opened and closed at appropriate time intervals.

When the gate 9 is opened, the lowermost tube 6 is sent to the rollers 8, enters the guide 10, and is further fed between the rotary feed rollers 11,11.

The rotary feed rollers 11, 11 are devices that rotate the tube 6 around the limb canal axis and move it in the axial direction.
, 11, the sheathing material 3.4 is wrapped around the tube 6.

Reference numeral 12 denotes a tension roller that holds the covering materials 3 and 4 with appropriate strength between it and a guide roller in order to apply appropriate tension to the covering material.

The covering material 3.4 is fed through a tube 6 at the same speed across a small gap.
．． 6 is continuously wound with this small gap interposed therebetween.

Reference numeral 13 denotes a gap detector for detecting the gap between the tubes 6 and 6 covered with the covering materials 3 and 4 from the outside.If the material of the tube 6 is magnetic, a magnetic force detector can be used; In this case, gap detection can be performed using eddy currents.

14 is a rotary cutter that cuts the covering material at the gap position detected by the detector.

The cut and separated cladding tube 6a is placed on a pedestal 15, and the pedestal is tilted laterally, for example, so that the cladding tube rolls and moves at the same time as the cutting.

When the tubes 6 are accumulated in the storage tank 7, if they are not stacked vertically but arranged horizontally at an angle, the influence of the weight of the upper tubes can be significantly reduced, which is advantageous for feeding the tubes.

The guide 10 guides the tube to be inserted between the rotary feed rollers 11 so that the tube can be inserted smoothly.

The rotating feed mechanism includes not only a spiral roller as shown in the figure, but also a belt as shown in Fig. 1, and a tube axis a as shown in Fig. 4.
A cylindrical roller with an axis inclined relative to the roller, or a roller with a belt 16 wound spirally as shown in FIG. 5 can be used.

Since the structure is as described above, the lowest tube 6 accumulated in the storage tank 7 is sent out by the rotating roller 8 when the gate 9 is opened, and the next tube is moved to the lowest tube.

After the leading pipe is sent out, the gate 9 descends to prevent the next pipe from proceeding, so the rotating roller 8 and the pipe 6 slide while waiting for the gate 9 to open next.

If the length of the tube 6 is constant, the gate 9 is opened at regular intervals to leave a gap between the leading tube and the leading tube for good cutting by the cutter 14, so that, for example, the leading tube starts to advance. After that, it descends and slides on top of the limb canal until the limb has passed, and after passing the preceding canal, the next canal is stopped from advancing, and a timer starts from the time it closes. It will open again after a predetermined short time.

If the gate 9 is separated from the leading pipe and closed after a certain short period of time, the gap can be made constant even when the length of the pipe is indefinite.

Even if the lengths of the tubes are different, the gap between the tubes can be made constant.

In order to send out the tube 6 across a small gap, in addition to the above, the rotating roller 8 below the storage tank 7 may be rotated intermittently.

Apply adhesive to the edges of the sheathing materials 3 and 4, or apply adhesive to both of the sheathing materials 3 and 4 or the upper layer of the sheathing material 4 to prevent it from separating from the pipe after wrapping. do.

As described above, the coating material wrapping device of the present invention is a device that continuously wraps a coating material around a large number of pipes or rods to give the pipes or rods heat insulation properties, insulation properties, etc. The rod is moved with a certain small gap and the sheathing material is wrapped around it, and then the sheathing material is cut at the gap to make individual tubes or rods. Only tubes and rods that have been cut to a fixed length are used. Even if the length is irregular or a mixture of regular and irregular lengths, the coating process can be performed automatically, extremely quickly and efficiently.

Further, unlike the conventional method, the inefficient work of removing the covering material from the core metal and fitting it again to the pipe etc. is not necessary, and this has a great industrial effect.

[Brief explanation of the drawing]

FIG. 1 is a schematic side view showing a state in which a coating material is wound around a core bar by a conventional method, FIG. -A sectional view, FIG. 4 is a perspective view of the feed roller, and FIG. 5 is a perspective view of the feed belt. 2: Core metal, 3, 4: Covering material, 5: Drive belt, 6: Pipe,
7: Storage tank, 8: Rotating roller, 9: Opening/closing gate, 10: Guide, 13: Gap detector, 14: Cutter.

Claims (1)

[Claims] 1. A feed roller 8 is provided to face the open bottom of the storage tank 7 and feed out the tubes or rods in the storage tank one by one in the axial direction, and a device is attached to form a gap between the tubes or rods that are fed out in succession. A device that rotates a plurality of tubes or rods that are fed out in the axial direction with successive small gaps and moves them in the axial direction at the same speed, and a covering material 3 to which an appropriate tension is applied.
4 around the tube or rod in a spiral manner,
Subsequently, a detector 13 for detecting gaps between the tubes or rods wound around the coating material and a cutter 14 for cutting the coating material and separating each tube or rod at the detected gaps are provided. The material wrapping is a device.