JPS58162423A - Article feeding and discharging apparatus - Google Patents

Abstract

PURPOSE:To prevent violent fall of an article due to sharp variation of speed and stabilize transportation by installing a plural number of stages of timing screws in the direction of the height of the article, in a feeding and discharging apparatus equipped with timing screws for intermittently feeding bottles into an inspection apparatus etc. CONSTITUTION:The bottles 1 transported on a conveyor 7 are fed into timing screws 2 and 8 which are synchronously driven in succession, and the side part of the bottle is engaged with the lead grooves of the timing screws 2 and 8, and separately held at the lead groove pitch and transferred at a prescribed speed. Since the lead grooves of the timing screws 2 and 8 are separated in the vertical direction, the bottles 1 are held at two positions in the vertical direction. Thus, bottles can be transported stably without being tumbled down, even if sharp variation of speed occurs.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is designed to prevent the bottles from falling over even when the speed of bottles, etc. changes rapidly from continuous feeding to intermittent feeding, for example in a bottle inspection device. This invention relates to an article feeding and discharging device that can reliably supply articles into an adjacent inspection table or into a star wheel of an attached maple.

Figure 1 shows a side view of a conventionally known supply container for supplying bottles, etc. In the same figure, (1) is a bottle that is an article to be transported such as a plaster to be examined, and (2) is this bottle. A bottle (1 piece
), (3) is a bearing housing that encloses a bearing that supports timing screw (2), and (4) is timing screw (2). Drive motor to rotate (
(not shown) is a transmission shaft that transmits rotation through a bevel gear (5), (6) is a support post fixedly fastened to the machine body that holds each bearing housing (3) of the timing screw [2); 7) is a conveyor installed on the main body of the machine to transport bottles.

The conventional general supply and installation of bottles, etc. is configured as described above, and the bottles that are sent sequentially by the upstream conveyor (7) need to be fed to the main body of the inspection device at regular intervals. Detection IF so that the bottle can be separated and transported! A timing filter (2) is installed at the entrance of the It. When the sent bottles (1) enter the timing screw (2), they are separated one by one by a reed groove that is formed on the timing screw (21) and engages with the side surface that contacts the bottle, and then placed on the inspection table. The rotation of the timing screw (2) is transmitted from the bottom of the device via the transmission shaft (4) and the bevel gear (5). However, as mentioned above, the conventional feeding device consists of only a single timing screw (2). Therefore, in the case of normal continuous flow (1), the bottle will not topple over unless there is a sudden speed increase or the bottle is unstable.

This is because the timing screw (2) is primarily responsible for separating the bottles, and the actual conveyance of the bottles is carried out by the conveyor (7), so there is no risk of the bottles falling over. If the lead groove of the timing screw (2) is machined to rapidly change bottle conveyance, the bottle will change from continuous to intermittent conveyance within the timing screw (2). In the case of a variable pitch reed groove such as the one shown in FIG. Therefore, there is a drawback in that there is no countermeasure against such intermittent supply of goods, such as slowing down the speed 1 or using a bottle or the like with a particularly low center of gravity.

The present invention has been made in order to eliminate the drawbacks of the conventional ones as described above, and by providing an additional timing screw in addition to the conventional timing screw, it is possible to solve the problem of intermittent supply of additional timing screws for inspection and mounting, etc. To provide an article feeding/discharging device capable of stably and reliably feeding a bottle without overturning even if the bottle speed changes rapidly.

Hereinafter, the present invention will be specifically explained in detail based on the illustrated embodiment. FIG. 2 is a plan view of the supply veW1 portion showing one embodiment of the present invention, and FIG. 3 is a side view thereof. In FIGS. 2 and 3, reference numerals (1) to (7) indicate parts equivalent to those of the conventional device described above.

However, (8) faces the conventional timing screw (2) and has a lead groove bored therein.
) is a second timing screw (9) installed to support the upper part (1(L)) of the field (1), which is parallel to the conventional timing screw R21. Transmission shaft (
(4) is a bevel gear provided on an extension of the above-mentioned second timing screw (8).
7), and in order to make effective the transfer effect of the timing screws (2) and (8), this is a guide section installed parallel to and opposite to the timing screws r21 and (8). In addition, (2) shows the adjacent inspection device main body, and ◇j shows the supply star wheel installed just before the inspection table (not shown) in the inspection device main body to change the direction and feed the bottle. . Furthermore, as is clear from the aspect shown in M, the timing screw shown in Fig. 2.3 (
2) is arranged slightly lower than the one shown in the first section, and the cross-sectional shape of the lead groove between the timing screws (2) and (8) is such that the engagement shape of the bottle (1) depends on the height. If different,
In order to comply with this, consideration is given to transporting the bottle (1) M times by each timing screw (2), (8).

In the bottle feeding device configured as described above, the bottles (1) fed from the upstream side of the conveyor (7) are sequentially passed through the timing screw (:) as in the conventional embodiment.
, (8) and timing screws (3), (8).
) by fitting the side of the bottle into the lead groove.
Bottles are separated at the pitch of the lead grooves and transported at a predetermined speed. This timing screw (2), (8)
Since the lead grooves of are engaged with the bottle (1) while being spaced apart from each other vertically,
Compared to the case where the conventional single timing screw (2) is used, when the bottle (1) is given a rapid transfer, for example, the pigeon (1) is changed from continuous to intermittent transfer. or conversely, even if a significant acceleration is applied to the bottle (1), such as when the bottle (1) is accelerated from a standstill, due to the existence of the second timings fly (8), The bottle (1) is supported at two points in the longitudinal direction and will not fall over. -Also two timing screws (2
1 and (8) are connected to the bevel gear (5L (91) at the shaft end of each timing screw via the transmission shaft (4) from the drive motor (not shown) of the calibration device main body, respectively.
Since they are driven, they are completely synchronized and can transport and hold bottles reliably.

In addition, in the above embodiment, the case where two timing screws were installed in parallel was explained, but the timing screws are
The number may be two or more.

In addition, in the explanation of the operation of the above embodiment, the case where the rotation of the timing screws (21, (8) is constant and the bottle is rapidly accelerated or decelerated by changes in the lead groove, that is, the case of a variable pitch configuration was described). Regardless of the lead groove, even if the rotation of the timing screw itself is not constant and changes rapidly, the effect is as shown in (6).

Furthermore, in the above embodiment, the drive of the two timing screws is transmitted through the transmission shaft (4) and each timing screw (2+
, (8), but instead of the bevel gear, a timing belt is used to drive the second timing screw (8), which is provided at the bottom of the conventional timing screw (2). Of course, synchronous rotation as in ■ can also be obtained from the axis of .

Further, as for the timing belts (21, (8)), especially in the case of easily damaged items such as bottles, if they are made of resin, they can absorb and soften the impact of the bottle.

By the way, in the above embodiment, the supply attachment of the bottle was explained, but it goes without saying that the present invention can be applied not only to bottles but also to plastic containers and general parts, and the above embodiment was an example of application to a measuring device for increasing the size. However, it is clear that it can also be applied to general assembly machines, capping machines, filling machines, etc. Furthermore, the above embodiment can be used to stably discharge articles from a weighing device f, etc. Of course, it can also be used as an article discharge W, Il.

As explained above, the present invention replaces the conventional single timing screw with a horizontally hanging timing screw, thereby stably transporting the transported article at variable speed without fear of overturning. It is possible to provide an article feeding and discharging device that can feed and feed articles.

[Brief explanation of drawings]

Figure 1 is a side view showing a conventional general supply device for bottles, etc.;
FIG. 2 is a plan view of an article supply device according to an embodiment of the present invention, and FIG. 3 is a side view thereof. (2), (8): Timing screw (3), 00: Bearing housing (4): Transmission shaft (51, (9>: Bevel gear αη guide part) The same reference numerals in each figure indicate ■- or equivalent parts. . Agent Nobu Kuzuno −

Claims (3)

[Claims] (1) In an article feeding/discharging device equipped with a timing screw that is provided in an article conveyance path and that transfers the conveyed article by locking and guiding the conveyed article in a lead groove formed on the circumferential surface, the timing screw is connected to the height of the conveyed article. An article feeding and discharging device characterized in that it is horizontally arranged in multiple stages in the horizontal direction. (2) The article feeding and discharging device according to claim 1, wherein the lead groove has a variable pitch structure. (3) The article feeding and discharging device according to claim 1, wherein the timing screw is linked to a variable speed drive machine capable of switching from continuous operation to intermittent operation.