JPH056273Y2 - - Google Patents

Description

[Detailed Description of the Invention] A. Field of Industrial Application The present invention relates to an article conveying device that conveys articles using air pressure and inserts them into recesses of a drum.

B. Summary of the invention The present invention is an article conveying device that is applied, for example, to the manufacturing process of heat exchangers.In order to make it easier to assemble the cooling fins (articles) into the tube, the cooling fins are placed in a case before the cooling fins are packed into the case. It is used for loading the drum into the drum.

C. Prior Art A heat exchanger is constructed by combining tubes and, for example, corrugated cooling fins (hereinafter simply referred to as fins). However, such assembling work is generally performed by assembling tubes and fins one by one, either manually or by automatic machines, resulting in poor work efficiency.

In order to improve the above-mentioned situation, a method has been developed in which a required number of fins are temporarily stored in a fin case and these fins are inserted between tubes at once. When adopting such a batch insertion method, a device that automatically stores the fins in the fin case has already been proposed (Utility Application No. 60-2841).
issue).

The above device will be explained based on FIGS. 5 to 7. Fins 1 are continuously placed on a belt conveyor 2, and the fins 1 are continuously formed by a fin forming machine (not shown). Horizontal drums 3 and 4 (hereinafter, the one on the left in the figure is called the main drum, and the one on the right is called a reinforcement drum) are arranged facing each other on the left and right sides of the belt conveyor 2, and a frame 5 with built-in bearings. , 6, and each is driven and rotated by a stepping motor (not shown). This stepping motor is connected to a pulse encoder (not shown), so that the positioning of the main drum 3 and the auxiliary drum 4 is performed by the pulse encoder. A plurality of long groove-shaped recesses 7 for accommodating the fins 1 are provided on the outer peripheral surfaces of the main drum 3 and the auxiliary drum 4 at equal intervals along the longitudinal direction. At the front and rear of the auxiliary drum 4, shafts 12 and 13 are supported on frames 8 and 9 via linear motion bearings 10 and 11, respectively, so as to be slidable in the left and right directions in FIG. Between the left ends of the figure 13 are left and right scraping boards 1.
4 are attached on the belt conveyor 2 in the front-rear direction. A connecting fitting 15 is attached between the right ends of the shafts 12 and 13 in FIG. 5, and this connecting fitting 15 is connected to an air cylinder 17 installed on a stand 16. Therefore, the air cylinder 17 connects the connecting fitting 15 and the shafts 12, 13.
When the left and right scraping plates 14 are moved left and right on the belt conveyor 2 by moving them left and right in FIG.
They are sorted and pushed into one of the recesses 7. In Fig. 5, left and right scraping plates 14
Move it to the right, and set the fin 1 on the right end face.
It shows how it is pushed and stored in the recess of the auxiliary drum 4. Incidentally, the operation signals for the stepping motors of the main drum 3 and the auxiliary drum 4 and the air cylinder 17 are electrically generated at high speed by logic circuits. In addition, the outer circumferential surfaces of the main drum 3 and the auxiliary drum 4 are covered with covers 18 and 19, excluding about 90 degrees from the lateral direction where the fins are housed to the lowest part thereof, as shown in FIG. When rotating each main drum 3 and auxiliary drum 4 in the direction of the arrow shown inside, the fins 1 stored in the recesses 7
It is designed so that it does not jump out or fall down until it reaches the bottom. Main drum 3, auxiliary drum 4
A fin case 20 is arranged below the belt conveyor 2 so as to be movable in a direction perpendicular to the belt conveyor 2 (see FIG. 6), and the fin case 20 is provided with a plurality of partition plates 21 to store the fins 1. A plurality of storage sections are provided along the moving direction. Therefore, the fins 1 that fall from the bottom by rotating the main and auxiliary drums 3 and 4 are stored in the storage section of the fin case 20, and when the fin case 20 becomes full with the stored fins 1, this The fin case is an empty fin case 2
It will be replaced with 0. Further, the fin case 20 is provided with a positioning pin hole 22, and by fitting a pin into this pin hole 22 and moving the fin case 20, the The fin case 20 is pitch-fed sequentially so that the housing portion of the fin case 20 is located.

D Problems to be solved by the invention In the above device, when the fin 1 becomes full in the fin case 20, the fin case 2
When replacing the fin case 20 with an empty fin case 20, the fins 1 conveyed by the belt conveyor 2 can be accumulated on either drum 3 or 4, so the fin case 20 can be replaced continuously without stopping the belt conveyor 2 each time. transport and storage work can be carried out.

However, even with the above device, there was room for improvement as described below. That is, in order to convey the fin 1 by the belt conveyor 2 and insert this fin 1 into the drums 3 and 4 by the left and right scraping plates 14,
Not only is the structure complicated and expensive, and is disadvantageous in terms of maintenance, but it is also difficult to reduce the manufacturing takt time of the heat exchanger due to the limit of machine operation time.

The present invention was developed in view of the above circumstances, and an object of the present invention is to provide an article conveying device that has a simple structure and achieves a reduction in manufacturing tact time.

E. Means for Solving the Problems The articles are conveyed by sliding on the passage by the air pressure emitted from the noise, and the articles are guided to one of the drums by a sorting device. Then, the article guided to the drum is inserted into the recess from the end surface of the drum by the movement.

F Example An embodiment of the present invention will be described based on the drawings.

This example is applied to the same heat exchanger manufacturing process as described above, and the same parts as those of the apparatus explained based on FIGS. 5 to 7 are given the same reference numerals, and redundant explanation will be omitted. .

As shown in Fig. 1 and Fig. 2, one end of the slide base 30 forming a passage is located at the discharge port of the fin forming machine (supply source) not shown, while the other end is branched into two branches midway and located opposite the end faces of the drums 3 and 4. At the entrance of the slide base 30, a cutter 32 driven by a cylinder 31 is provided, which cuts the formed fin 1 to a predetermined length.
A suitable number of nozzles 33 are provided along the slide base 30, and when air is supplied from a compressed air supply source (not shown) through an adjustment valve 34 and ejected from the nozzles 33, the fin 1 can be slid on the slide base 30 by air pressure. As shown in Fig. 4, a groove 30 is provided in the center of the slide base 30 to drain excess oil applied to improve the sliding of the fin 1 or to remove dust.
a is extended, and the slide base 30
On both sides of the fin 1, there are guides 3 for guiding the movement of the fin 1.
0b is attached to the slide base 30. A defective fin removal device 40 is provided upstream of the branching portion of the slide base 30. The device 40 is provided so as to be capable of rotating up and down, and at the lowered position, the device 40 is connected to a rotating member 41 which is a part of the slide base 30.
A cylinder 42 for driving the slide base 30
The device 4 is provided with a pair of sensors 43 and 44 spaced apart from each other by a predetermined distance.
According to the method of the present invention, the length of the fin 1 cut by the cutter 32 is measured by the sensors 43 and 44 while the fin 1 moves on the slide base 30.
If this length is not the predetermined value, the rotating member 41
2, the fin 1 is discharged from the passage.

A sorting device 5 is installed at the branch of the slide base 30.
0 is set. As shown in detail in FIG. 3, this device 50 includes a guide member 51 that is rotatably provided and can selectively close any one of the slide bases 30 on the downstream side of the branching part; A cylinder 53 is connected to a lever 52 attached to the guide member 51 and rotates the guide member 51. According to this device 50, the fin 1 that has been sliding on the slide base 30 is distributed to the main drum 3 or the auxiliary drum 4 side by the guide member 51, and the fin 1 is moved from the end surface of the drum 3 or 4 into the recess 7. have it inserted.

According to the article conveying device having the above configuration, the molded fin 1 can be conveyed to the drums 3 and 4 by air pressure and inserted into the recess 7 as it is, and the fin 1 inserted into the drums 3 and 4 in this way can be conveyed to the drums 3 and 4. By storing it in the case 20, it is possible to manufacture a heat exchanger by a batch insertion method.

In the above embodiment, it is practical to provide a sensor for detecting that the fin 1 has passed through the removal device 40, the sorting device 50, etc., or a sensor when the fin is completely inserted into the recess 7, at an appropriate position in the passage. It is preferable.

It should be noted that the present invention is not limited to the above-mentioned embodiment, and can of course be applied to conveyance other than fins.

G Effects of the Invention According to the article conveying device of the present invention, mechanical movable parts can be omitted or simplified, and the structure of the entire device can be simplified and costs can be reduced. Moreover, the time limit due to mechanical operation can be improved, and the time required for transporting and inserting articles can be shortened. In addition, when the fins were conveyed by air pressure using the device shown in the above example, it was found that
What used to take 1.5 seconds was reduced to 1.3 seconds, reducing the manufacturing time for heat exchangers.

[Brief explanation of drawings]

Fig. 1 is a plan view of an article conveying device according to an embodiment of the present invention, Fig. 2 is a side view thereof, Fig. 3 is a sectional view of the sorting device, Fig. 4 is a sectional view of the slide base, and Fig. 5 6 is a perspective view of a conventional article conveying device.
The figure is a front view thereof, and FIG. 7 is a perspective view of the fin case. In the drawing, 1 is a fin, 3 is a main drum, 4 is an auxiliary drum, 7 is a recess, 30 is a slide base, 33
50 is a nozzle, and 50 is a sorting device.

Claims (1)

[Scope of utility model registration request] A drum is provided with a plurality of recesses parallel to each other and rotatable, and has a plurality of recesses spaced at equal intervals on the outer circumferential surface for accommodating articles. a passageway facing the end face; a plurality of nozzles provided along the passageway for moving an article placed on the passageway to the drum side using air pressure and inserting it into the recess; and a branch part of the passageway. 1. An article conveying device comprising: a sorting device that selectively closes branched paths.