JPH0330339Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention is a method for lifting articles made of short round rods or cylinders stored in a hopper to a high-altitude chute by means of a step-shaped article pushing means. The present invention relates to a transfer device for cylindrical and cylindrical articles, which is configured to sequentially transfer cylindrical and cylindrical articles.

[Conventional technology]

Various proposals have been made for this type of transfer device to smoothly and reliably move cylinders and cylindrical parts to desired heights with a small installation area (e.g., Japanese Patent Publication No. 40-2694, Japanese Patent Publication No. 49/1973). -20668 Publication, Utility Model Publication No. 56-21697, etc.), but the basic structure is briefly explained based on Fig. 3.
3 is a hopper installed at a low position for storing articles 2 that require processing such as iron round bars, and 3 is a chute installed at a higher position than the hopper 1. Between these hopper 1 and chute 3, there is an air supply for feeding out articles. cylinder 4,
A second hopper 5 and step-shaped article pushing means 6 are provided. The article pushing means 6 includes a plurality of article pushing means 6, each of which has a slope 7 whose top surface slopes low in the direction of the height, and is arranged in parallel at a predetermined interval in the plate thickness direction so as to be gradually higher in the direction of the height. For example, three fixing plates 8, the second hopper 5 and the lowest fixing plate 8.
between the fixed plates 8, 8, and between the uppermost fixed plate 8 and the chute 3, each movable plate 9 has the fixed plate 8 and the fixed plate 8 on its top surface. A crank mechanism 15, which is integrally connected to a connecting plate 12 with a slope 10 inclined in the same direction by a connecting bolt 13 and driven by a motor 14, moves the fixed plate 8 up and down at the stair pitch all at once. is configured to do so.

When the feeding air cylinder 4 is driven and the feeding rod 4A rises along the slope 5a of the second hopper 5, some of the articles 2 on the hopper 1 are pushed up by the rod 4A, and By climbing over the hopper 5, it is transferred onto the lowermost movable plate 9. When all the movable plates 9 are raised simultaneously by the drive of the motor 14, the articles 2 on the movable plates 9 are pushed up and moved onto the next upper staircase, that is, the lowermost fixed plate 8. Further, when the movable plate 9 descends to the original position, the article 2 on the lowermost stationary plate 8 rolls and moves onto the second movable plate 9. In this way, each time the movable plate 9 moves up, the article 2 is transferred one step onto the upper movable plate 9, and finally the article 2 is transferred from the uppermost movable plate 9 to the chute 3.
Once moved upward, it rolls on the chute 3 and is sent to the conveyor 16, where it is transported to the next process.

[Problem that the invention attempts to solve]

By the way, in such conventional transfer devices, if the length of the article is sufficiently large, it can be conveyed smoothly, but in the case of short and small-diameter articles, the center of gravity is low and the stability is increased. There was a problem in that it became easy to stand up, making it difficult to feed out continuously and causing transportation problems.

In other words, the amount of articles 2 cut into small pieces by the feeding air cylinder 4 is large, and there are some on the movable plate 9 as shown in FIG. are those that are sent in different postures, such as those that overlap. Of these articles 2, only 2a, 2b, and 2e can be moved onto the next upper fixed plate 8 by raising the movable plate 9.
2c, 2d, 2f, 2g, and 2h cannot be moved.

That is, the thickness of the fixed plate 8 and the movable plate 9 is 1
It has only enough dimensions to place two articles 2,
Since two or more articles cannot be placed in parallel in the thickness direction, articles 2
After the items a, 2b, and 2e roll along the slope 10 and are transferred onto the fixing plate 8, the items 2f, 2g, and 2h cannot be moved because there is no space for the items 2b and 2e.
In addition, since the article 2c is standing, it does not fall over, and the article 2d
Because their central axes are parallel to the inclination direction of the slope 10 and the inclination angle θ (usually about 10 to 15 degrees) is small, they cannot slide and remain on the movable plate 9, respectively. and,
When the movable plate 9 moves up and down repeatedly to transfer the articles 2, only the upright articles 2c end up being lined up on the fixed plate 8 as shown in FIG.
The article 2 cannot be moved to the next higher stage side movable plate, and this becomes an obstacle to the conveyance of the article 2.

Therefore, as a way to solve this problem, it may be possible to increase the inclination angle θ of the top surfaces of the fixed plate 8 and the movable plate 9 so that the upright article 2c can also slide. As shown in FIG. 6, the article 2a lying on its side, whose central axis is perpendicular to the direction of inclination of the slope 10, and the article 2c standing up interfere with the fixed plate 8 on the upper stage side, preventing the movable plate 9 from rising smoothly. The problem arises of preventing movement. That is, as the movable plate 9 rises, the article 2a tries to spread the movable plate 9 in the direction of arrow A due to the wedge phenomenon.
Since the upper edge of the article 2c bites into the fixed plate 8, the movable plate 9 cannot be raised smoothly and reliably, causing transportation problems.

[Means for solving problems]

The transfer device for cylinders and cylindrical articles according to the present invention was developed to solve the above-mentioned problems.
A ceiling plate is installed on the upper surface of the fixed plate so as to be lower in the direction of the high place, and is pivotally supported so as to be rotatable in the vertical direction with the lower side edge thereof as the center of rotation, and this ceiling plate is used as the driving means. Therefore, every time the movable plate moves up and down a predetermined number of times, it is rotated upward once and tilted to the lower side.

[Effect]

In the present invention, by tilting the ceiling plate of the fixed plate so that it becomes lower to the lower side, all the articles standing on the fixed plate fall onto the movable plate on the lower stage, so that transportation is prevented. Smooth and reliable conveyance can be achieved without causing any problems.

〔Example〕

Hereinafter, the present invention will be described in detail based on embodiments shown in the drawings.

FIG. 1 is a sectional side view of the main part of an embodiment of the transfer device according to the present invention, and FIG. 2 is a plan view of the main part. Components that are the same as those in FIGS. 3 to 6 are designated by the same reference numerals, and their explanations will be omitted. In these figures, the fixing plate 8 of this embodiment is divided into a vertical plate 81A provided on the lower side, a ceiling plate 81B provided on the vertical plate 81A, and a pair of left and right side plates 81C provided on both sides of the vertical plate 81A. , 81D, and the lower end a of the ceiling plate 81B is connected to the vertical plate 8.
It is rotatably supported in the vertical direction by a support shaft 21 provided on the vertical plate 81A, and an air cylinder (or hydraulic cylinder) 22 as a driving means is installed vertically on the inner surface of the vertical plate 81A, that is, arranged vertically. do,
The outer end of the cylinder rod 23 is connected to the ceiling plate 81.
The other structure is completely the same as the conventional device shown in FIG. 3.
Note that 26 and 27 are side plates of the transfer device.

In this case, the ceiling plate 81B is normally inclined at a predetermined angle so as to be lower toward the high place as shown by the solid line in FIG.
It is configured to be rotated upward by the air cylinder 22, tilted to a lower position as shown by the two-dot chain line, and then rotated back to its original state.

Such driving control of the ceiling plate 81B involves counting the number of times the movable plate 9 is raised by a counter, sending the counted number to a control section, and driving the air cylinder 22 in response to a drive signal from the control section. It's easy.

Thus, in the transfer device having such a configuration, the ceiling plate 81B is raised and rotated by the air cylinder 22 every time the movable plate 9 moves up and down a predetermined number of times, so that the ceiling plate 81B stands up on the ceiling plate 81B and remains. Since all the articles 2 that are attached can be dropped onto the lower movable plate 9, the articles 2 are not lined up in an upright position on the ceiling plate 81B, and even if the articles are small, they can be dropped smoothly and reliably. may be transported to
It is possible to prevent transportation failures from occurring.

Further, since the ceiling plate 81B quickly returns to its original state after being rotated upward by the air cylinder 22, there is no adverse effect on the conveyance of the articles 2.

[Effect of idea]

As explained above, the device for moving cylindrical/cylindrical articles according to the present invention rotates the ceiling plate of the fixed plate up and down once every time the movable plate moves up and down a predetermined number of times, so that it is lowered to the lower side. Since the structure is configured such that the items are tilted upwardly, items remaining in an upright position on the fixed plate can be dropped onto the lower movable plate and reliably removed, thereby preventing conveyance obstructions caused by the items standing up. can be prevented, and smooth and reliable conveyance can be achieved.
It is particularly suitable for application to short articles.

[Brief explanation of the drawing]

Fig. 1 is a sectional side view of the main part of the transfer device according to the present invention, Fig. 2 is a plan view of the main part, Fig. 3 is a side view of the conventional device, and Fig. 4 is a diagram showing the state of articles on the movable plate. , FIG. 5 is a diagram for explaining transport obstacles caused by parts on the fixed plate, and FIG. 6 is a diagram for explaining transport obstacles when the inclination angle is similarly increased. 1... hopper, 2... article, 3... chute, 4... air cylinder, 5... second hopper,
6... Article lifting mechanism, 7... Slope, 8... Fixed plate, 9... Movable plate, 10... Slope, 14... Motor, 21... Support shaft, 22... Air cylinder, 81
B...Ceiling board.

Claims (1)

[Scope of utility model registration request] Between the hopper at a low position and the chute at a high position, a movable plate and a fixed plate each having a slope of the same shape on the top surface that slopes downwardly toward the high position are alternately overlapped in the thickness direction of the plate. The movable plates are arranged in a stair-like manner so that the height increases successively in the height direction, and each movable plate is moved up and down at the same time at the step pitch of the fixed plate, and as the movable plate rises, the items on the stairs are gradually moved to the next upper tier. In a transfer device for cylindrical/cylindrical articles that is pushed up to a staircase, the lower end of the ceiling plate of each fixed plate is rotatably supported in the vertical direction, and the ceiling plate is driven by a driving means, Each time the movable plate moves up and down a predetermined number of times, it is rotated upward once and tilted to a lower position so that the articles on the ceiling plate are dropped onto the lower movable plate. Transfer device for cylindrical and cylindrical articles.