JPS6216499B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a feeding device for feeding the base halves of an annular fluorescent lamp in a line.

In general, the caps of ring-shaped fluorescent lamps are shown in Figure 1 a and b.
It is made up of a pair of cap halves shown in the figure, which are brought into contact with each other and fixed with screws, etc. By the way, as a device for feeding the cap halves having such a shape in a line, for example, there is a rotating feed cylinder which is installed at an angle and rotates to send the cap halves while sliding them with their circumferential surfaces facing downward. Provided by the assignee of the present invention. However, according to the above-mentioned rotary feed tube, in some cases, the two halves of the cap may be fed in a state where they overlap each other in one part, and if the halves of the cap are fed in such an overlapping state, the rotary feed tube may be Problems may occur, such as the half pieces of the cap becoming clogged near the conveyance port, or the caps not being correctly fed one by one to the next process.

The present invention has been made based on the above-mentioned circumstances, and its object is to provide a cap half-piece feeding device that can separate the overlapping cap halves and feed them in a line.

An embodiment of the present invention will be described below based on the drawings. In the figure, 1 is a base, and a pair of bearings 2, 2 are provided on this base 1. A feed rotary cylinder 3, which is open at both ends, is rotatably supported by the bearings 2, 2. The feed rotary cylinder 3 is provided in an inclined manner so that the conveyance start end side opening 4 is higher than the conveyance end side opening 5, and the conveyance start end side opening 4 is connected, for example, to the outlet of the half-piece feeding mechanism 6. At the same time, a chute 7, for example, is connected to the transport terminal opening 5. Further, a pulley 8 is provided on the feed rotary cylinder 3, and is configured to be rotationally driven via a belt or the like.

For example, three protrusions 9 are provided on the inner surface 3a of the feed rotary cylinder 3. These protrusions 9 are arranged in a spiral shape along the inner surface 3a, and as shown in FIG. The pitch interval 1 in the axial direction of 9... is set to be greater than the length of the cap half piece A.

In the apparatus of this embodiment having such a configuration, a fixed amount of the cap halves A are fed into the feeding rotary cylinder 3 by the cap half piece supply mechanism 6 . And these cap halves A
... slides and moves toward the transport end side opening 5 due to its own weight. However, since the cap half piece A has a shape like a cylinder divided vertically, it should be placed in such a manner that its circumferential surface A ₁ is on the lower side and its axial direction is aligned with the axial direction of the feed rotary cylinder 3. Most stable. Therefore, these cap halves A are aligned in a line in the above-mentioned stable posture while being rotated relative to each other and sliding in the feed rotary tube 3 and fed in the axial direction. Since the circumferential rotational speed of the rotary cylinder 3 is relatively faster than the moving speed of the cap halves, the protrusions 9...
It gets caught in one of them and is lifted up somewhat in the circumferential direction as the feed rotary cylinder 3 rotates. but,
When lifted to a certain extent, the cap half A slides inside the rotary cylinder 3 toward the exit side during this movement in the circumferential direction, so it comes off the protrusion 9, and the cap half A returns to the center of the inner surface 3a due to its own weight. It will be sent as is.

By the way, immediately after the cap halves A are fed from the supply mechanism 6, the two cap halves A, A may be sent in a state overlapping each other, as shown in FIGS. 2 and 3. be. However, one of these overlapping cap halves A, A is caught on the protrusion 9 as described above, and after this caught cap half A is lifted in the circumferential direction as the rotary cylinder 3 rotates. While the protrusion 9 is disengaged and falls, the other cap half A moves in the circumferential direction or axial direction without being caught by the protrusion 9, so these cap halves A and A are mutually attached to the rotary cylinder 3. A positional shift occurs in the axial direction and they are separated, thereby releasing the superposed state. After passing through the protrusions 9, the cap halves A, A are aligned in the above-mentioned stable posture and sent out. Note that since a plurality of protrusions 9 are provided in a spiral shape, the cap half piece A will hit either the second or third protrusion even if it does not hit the first protrusion, ensuring that the cap halves are in an overlapping state. can be separated into

In this way, according to the above-mentioned embodiment device, the half pieces A of the caps inputted from the opening 4 on the conveyance start end side are aligned in a stable posture with the circumferential surface A ₁ facing downward during the feeding, and are sent out in a line. At the same time, the overlapping cap halves A... are also separated during the feeding and are fed in a line. Therefore, problems such as, for example, the cap half A getting stuck at the entrance of the chute 7 do not occur, and the product can be reliably delivered in the same posture.

Note that the number of protrusions 9... is such that if there is only one, the half piece of the cap sliding inside the rotary cylinder 3 may pass through without hitting the protrusion, so the half piece of the cap must always come into contact with one protrusion 9. 2 or more, preferably 3
It is necessary that the number is about 5 to 5. However, if the number of protrusions is too large, it will take time to reach the outlet from the inlet, which is not preferable.

If the angle of inclination of the rotary cylinder 3 is large, the half piece A of the cap will instantly slide down as if falling in the axial direction, so an angle of inclination of about 5 to 10 degrees is suitable.

The rotational speed of the rotary tube 3 is also related to the above-mentioned inclination angle, but when the inclination angle is 7 degrees, a rotational speed of about 1 rotation per second is good.

Incidentally, the pitch interval l between the protrusions 9 is set to an optimum value depending on, for example, the rotational circumferential speed and inclination angle of the feed rotary cylinder 3. For example, if the angle of inclination of the rotating feed cylinder 3 is larger than that of the above embodiment, the pitch interval l may be made larger than that of the embodiment.

In addition, when the cap half is provided with a cap pin protrudingly provided as shown in FIG. It is desirable that the height exceeds the sum of the thickness of the cap and the wall thickness of the cap half.

As described in detail above, according to the present invention, the inner surface of the rotating feed cylinder is provided with a protrusion on which the cap halves are caught during feeding, so that the cap halves that are overlapping each other are separated. This has the effect of ensuring that they are sent out in a line in the same posture.

[Brief explanation of the drawing]

FIGS. 1a and 1b are perspective views of half pieces of the base, and FIGS. 2 and 3 show an embodiment of the present invention,
FIG. 2 is a side view with a portion cut away, and FIG. 3 is a view of the rotating feed cylinder as seen from the end surface side. 3... Rotating feed cylinder, 3a... Inner surface, 9... Protrusion (protrusion), A... Half piece of cap, A ₁ ... Circumferential surface.

Claims (1)

[Claims] 1. On the inner surface of a rotating feed tube, which is installed at an angle and rotates to send the cap halves of an annular fluorescent lamp while sliding them with their circumferential surfaces facing downwards due to their own weight, A plurality of protrusions are provided that are spaced apart in the axial direction by a distance greater than the length of the cap halves, and the cap halves overlap by being caught by the protrusions while sliding in the rotating cylinder. A cap half-piece feeding device for an annular fluorescent lamp, characterized in that it separates cap halves in different states.