JPS6234619A - Manufacturing system for tube with groove on internal surface - Google Patents

Abstract

PURPOSE:To free a speed of a parallel winding from regulation of a winding speed after form rolling by separating the form rolling work line from the winding work line of a parallel winding independently. CONSTITUTION:A tube stock 22 fed from a tube stock drum 23 is pulled by a winding force of a vertical type bull block 26, enters a form rolling head 24, and is grooved on the internal surface of the stock 22. A tube stock 25 with grooves on its internal surface is wound on the block 26, is pushed down by a shedder ring 27, and is wound spirally and thickly on the block 26 below the shedder ring 27. The wound tube 25 with grooves on its internal surface is pressed on the block 26 by a sunbber roll 28 so as not to fall. The wound tube 25 falls, is accommodated with a receiving 29, and is wound roughly when the tube 25 is pushed down below the pressing length of the roll 28 and is released from the roll 28.

Description

DETAILED DESCRIPTION OF THE INVENTION "Field of Industrial Application" The present invention relates to a manufacturing system for internally grooved tubes used in heat exchangers for refrigeration, air conditioning, and the like.

``Prior Art'' A method of manufacturing a conventionally used internally grooved tube is shown in FIG.

As shown in the figure, in the conventional apparatus, a rolling head 3 and a horizontal pull block 4 that perform groove processing are provided on the downstream side of a material drum 2 that stores a material 1 and rotates around a horizontal axis in the material traveling direction.
．． Cleaning and degreasing tank5. Eddy current flaw detector 6.2 Plane straightening machine 7.
Length measuring device 8. A bending roll 9 and a take-up reel 10 are provided in sequence.

Under such a configuration, the material 1 of the internally grooved tube 11 is
The material is pulled out from the material drum 2 by being pulled by the winding force of the take-up reel 10, and the inner surface of the material is processed by the rolling head 3.

The internally grooved pipe 11 rolled in this way is rolled up by the vertical pull block 4, and then cleaned, degreased,
Eddy current flaw detection and two-plane straightening are performed, and after length measurement and bending rolls, alignment winding is performed by a take-up reel IO.

"Problems to be Solved by the Invention" The internally grooved tube is manufactured as described above, but the working speed in rolling is extremely low, from 30 m/min to 50 m/min.
m/min is the limit.

On the other hand, the winding speed by the winding reel 10 is 3
Although it is possible to do this at a speed of about 0.00 m/min, it is limited by the working speed of the above-mentioned rolling process, and winding at a low speed matching that speed has been unavoidable. That is, the take-up reel was operated at extremely low efficiency.

Additionally, adding a similar line to this line to increase the production volume of internally grooved tubes would only result in the creation of an extra winding section, which would result in a loss of equipment space. First, it has the disadvantage of requiring unnecessary equipment costs.

Furthermore, an increase in the number of take-up reels requires an increase in the number of workers, which unnecessarily increases costs.

``Purpose of the Invention'' The present invention has been made to eliminate the conventional drawbacks of rolling. The purpose of this invention is to provide a rational manufacturing system for internally grooved pipes by eliminating the uneconomical process of manufacturing.

"Means for Solving the Problems" In order to achieve the above object, the main means adopted by the present invention is to manufacture an internally grooved tube having a material receiving yard at one end and a winding line at the other end. In the system, there is a transfer path for the material drum that is connected to the material receiving yard and stores the material for the internally grooved tube, and an internally grooved tube that is connected to the winding line and has grooves processed on the inside surface of the tube. The main point is that a plurality of rolling pulls are provided between the transfer path of the material drum and the product drum, and have a grooved processing head. This is a manufacturing system for internally grooved tubes.

"Operation of the Invention" With the above configuration, according to the present invention, the rolling operation and the winding operation of aligned winding are separate lines that are unrelated. Therefore, the speed of aligned winding is not restricted by the winding speed after rolling.

"Example" Examples of the present invention will be described below with reference to FIGS. 1 and 2 to provide an understanding of the present invention. The following examples are merely specific examples of the present invention, and are not intended to limit the technical scope of the present invention.

Here, FIG. 1 is a plan view of a manufacturing system for an internally grooved pipe according to an embodiment of the present invention, and FIG. 2 is a perspective view of a rolling pull.
be.

As shown in 2nd vlJ, the rolling pull 21 stores the material 22 therein, and is a roller for processing the material 22 with grooves on the tube inner surface of the material 22 supplied from the payoff drum 23 rotating around a vertical axis. The head 24 has a molding head 24.

On the downstream side of the rolling head 24, a vertical pull block 26 (S scraping drum) is provided which rotates around a vertical axis and winds up the rolled internally grooved tube 25.

A slanted brim-shaped shader ring 27 is attached to the vertical pull block 26.
The inner grooved tube 25 wrapped around the outer circumference of the snubber roll 28
It is held by.

Further, a receiving drum 29 that accommodates the rolled internally grooved tube 25 is provided below the vertical pull block 26 so as to rotate around a vertical axis.

Since the rolling pull 21 is configured as described above, the raw material 22 supplied from the raw material drum 23 is pulled by the winding force of the vertical pull block 26 and passes through the rolling head 2.
4, the inner surface of the tube is machined with grooves.

The grooved internally grooved tube 25 is wound around the vertical pull block 26, and is pushed down by the shedder ring 27 provided on the outer surface of the vertical pull block 26. It is tightly wound into a spiral shape.

The wound internally grooved tube 25 is pressed against the vertical pull block 26 by the snubber roll 28, so it will not fall. When it comes off, the internally grooved tube 25 falls and is stored in the receiving drum 29 where it is roughly wound.

Through the above-described rolling operation, grooves are formed on the inner surface of the tube.In the manufacturing system according to the present invention, a plurality of the above-mentioned rolling pulls 21 are combined as shown in FIG. 21... is made to correspond to one take-up reel.

That is, as shown in the first diagram, a manufacturing system 31 for the internally grooved tube 25 is provided with a material receiving yard 32 at one end and a winding line 33 at the other end.

A material drum installation location 36 for placing a material drum 35 containing material is provided at the most upstream side of the rolling line 34 shown by the dashed line in FIG.
A product drum installation location 38 is provided for placing a receiving drum 29 containing the product.

The rolling line 34 is provided with a plurality of (four lines in this embodiment) rolling pulls 21 (FIG. 2), and in order to transfer the material drum 35 from the material drum installation location 36, a roller type conveyor is provided. A material drum transfer path 39 is provided, and the receiving drum 2 in the rolling pull 21 is
A product drum transfer path 40 consisting of a roller type conveyor is provided to transfer the product drum 9 to the product drum installation location 38.

In addition, a bypass passage 42 consisting of a roller conveyor is provided to connect the downstream side of each material drum 35 in the material drum transport direction to the product drum transport path 40 on the upstream side of the product drum 37 via a direction changer 41. It is provided.

A conveyance path 44 around which an unmanned conveyance vehicle 43 circulates is provided around the rolling place 34 .

The winding line 33 is such that the inner grooved tube 25 pulled out from the product drum 37 is connected to the cleaning degreasing tank 5 and the eddy current flaw detector 6.
．． 2-plane straightening machine 7. Cleaning and degreasing tank5. They are wound in alignment by a take-up reel 10 driven by a drive source 45 via a length measuring device 8 and a bending roll 9.

A storage conveyor 46 consisting of a roller type conveyor is provided upstream of the winding line 33, and a discharge conveyor 47 consisting of a roller type conveyor for conveying empty drums is provided downstream of the winding line 33. It is provided.

Further, the winding line 33 is located outside the conveyance path 44.
A stockyard 49 for product drums 37 is provided downstream from the material drum installation location 36 from the conveyance path 44.
A material side transfer path 50 is provided between. on the other hand,
A product side transfer path 51 is provided between the product drum installation location 38 and the transfer path 44.

With the above configuration, the material receiving yard 32
Material drum 35 transported by unmanned carrier 43 from
5, the material drum installation location 36 via the material side transfer path 50
placed in

The material drum 35 placed at the material drum installation location 36 is
The material is transferred along the material drum transfer path 39, and the rolling pull 2
1 (FIG. 2). in this case,
Material drums 35 for four lines are sent one after another.

Material 22 stored in a coil shape in payoff drum 23
The tube is pulled out from the payoff drum 23 by the winding force of the vertical pull block 26, and after the inner surface of the tube is grooved by the rolling head 24, it is roughly rolled and stored in the receiving drum 29.

When the rolling operation is completed, the four received one-column columns 29 are transported along the product drum transfer path 40 to the next product drum installation location 38, and further along the product side transfer path 51 to the top of the transfer path 44. Transfer to the automatic guided vehicle 43.

The empty payoff drum 23 is transferred to the downstream material drum transfer path 39. Direction changer 41. The vertical pull block 26 (
(Fig. 2) is installed downstream of the receiving drum 2.
Used as 9.

In this way, rolling work is performed in each rolling pull 21, and the rolled internally grooved tube 25 is conveyed to the entrance portion 46' of the storage conveyor 46 by the unmanned carrier 43 via the product drum installation location 38. be done.

The transported product drum 37 is transferred to a storage conveyor 46
It is transferred downstream along the line 33 and is conveyed to the delivery side of the winding line 33.

Here, the internally grooved tube 25 is pulled out from the product drum 37 by the winding force of the winding reel 10 driven by the drive source 45, and is removed from the cleaning and degreasing tank s, the flow flaw detector 6,
2-plane straightening machine7. Cleaning and degreasing tank5. After passing through a length measuring device 8 and a bending roll 9, they are wound in alignment onto a take-up reel 1o.

The drum 48, which is now empty after the internally grooved tube 25 has been wound up, is conveyed to the material receiving yard 32 by the automatic conveyance vehicle 43 via the unloading conveyor 47, where the material 22 is stored, and transferred to the automatic conveyance vehicle 43 and the material side transfer. The material drum is placed at the material drum installation location 36 via the path 50.

When the winding line 33 is in trouble or winding is not possible, the product drums 37 are stocked in a stockyard 49.

The operation of the automatic guided vehicle 43 is controlled by a microcomputer or the like.

In the example shown in Figure 1, there are 4 lines of rolling pull 21.21.
. . . One material 4F transfer path 50 and one product side transfer path 51 are provided for each rolling pull 21. These transfer paths are provided for each rolling pull 21. If it is possible to carry in and take out the drum at each time, it is possible to minimize the reduction in manufacturing efficiency due to malfunctions of the rolling pulls, etc.

"Effects of the Invention" As explained above, the present invention provides a manufacturing system for an internally grooved pipe having a material receiving yard at one end and a winding line at the other end, in which the internal groove is connected to the material receiving yard. A transfer path for a material drum that stores the material for the tube, a transfer path for a product drum that is connected to the winding line and that accommodates an internally grooved tube whose inner surface is grooved, and the material drum. This manufacturing system for internally grooved tubes is characterized in that it is provided with a plurality of rolling pulls each having a grooved processing head and is provided between the transfer path of the product drum and the transfer path of the product drum. The number of removal machines will decrease.

Therefore, the installation space for manufacturing equipment is small, equipment costs are reduced, and the number of workers during operation can be halved, resulting in significant effects.

[Brief explanation of drawings]

11th! 1 is a plan view of a manufacturing system for an internally grooved tube according to an embodiment of the present invention, FIG. 2 is a perspective view of a rolling pull, and FIG.
The figure is a perspective view showing a conventional method for manufacturing an internally grooved tube. (Explanation of symbols) 21... Rolling pull 23... Payoff drum 24... Rolling head 26... Vertical pull block 29... Receiving drum 32... Material receiving yard 33... Winding line 34... Rolling line 36... Material drum installation location 38... Product drum installation location 39... Material drum transfer path 40... Product drum transfer path 42... Bypass path 43. ...Automated guided vehicle 4
4... Conveyance path 46... Storage conveyor 47... Unloading conveyor 49... Stockyard.

Claims (1)

[Claims] (1) In a manufacturing system for internally grooved tubes that has a material receiving yard at one end and a winding line at the other end, the material drum is connected to the material receiving yard and stores the material for the internally grooved tubes. a product drum transfer path that is connected to the winding line and accommodates an internally grooved tube whose inner surface is grooved; and between the material drum transfer path and the product drum transfer path. A system for producing an internally grooved pipe, comprising: a plurality of rolling pulls provided in the holder and having a grooving head;