JPH018973Y2 - - Google Patents

Description

[Detailed explanation of the invention] This invention has a weighing processing capacity of 400 to 600 pieces per minute.
The present invention relates to a high-speed weighing device that is applied to weight sorting in a production line for canning, bottling, etc., which requires a relatively large amount of processing capacity, such as canning and bottling.

Conventionally, in high-speed weighing devices such as those mentioned above, multiple weighing conveyors are arranged in parallel, and a sorting device is provided in front of these weighing conveyors, and the articles sent by the conveying device are transferred to this sorting device. Therefore, there were cases in which the articles were sequentially distributed to each weighing conveyor, weighed by each weighing conveyor, and the weighed items were collected by a collection device installed after each weighing conveyor and sent to another conveyor. . However, this high-speed weighing device requires a sorting device, a collection device, and a control device to control these devices, which increases the price of the device as a whole and makes it large, requiring a large installation area. Then a problem arose. In order to solve these problems, the creators of this device proposed three sets of conveyors, each consisting of two short endless running strips, in a utility model registration application filed at the same time. The endless running strips of the conveyor take different positions in the width direction and are arranged parallel to each other along the article transfer path. A weight detection unit is provided for each conveyor, and each conveyor differs each time the article to be weighed reaches near the starting end of the article transfer path. We have proposed a high-speed weighing device that has an example of a configuration that includes a starter that runs a conveyor. This high-speed weighing device can weigh with virtually the same capacity as multiple weighing devices without using a sorting device or a collection device, but this high-speed weighing device can weigh in the width direction of an endless running strip. Since the structure is such that the article to be weighed is supported and conveyed by the article support section located at a distance, it can be applied to cardboard boxes, etc., but it cannot be applied to bottles and canned goods. Ta. In order to apply bottling to canned goods, it is necessary to provide a rod-like member to straddle the support parts for the weighed articles, but since multiple sets of conveyors run independently, all conveyors run simultaneously. The article to be weighed cannot be transported unless the Therefore, the above-mentioned high-speed weighing device cannot weigh bottled or canned food.

The object of this invention is to provide a high-speed weighing device that can weigh bottlings, canned products, etc. with substantially the same capacity as weighing with a plurality of weighing devices.

This invention will be explained below based on one embodiment shown in the drawings. In FIGS. 1 and 2, 1, 2, and 3 are weighing conveyors. The weighing conveyor 1 consists of two endless strips stretched in parallel, for example, a toothed belt 1.
It has a and 1b. Furthermore, weighing conveyor 1
has a platform 4 on which the toothed belt 1a runs, and a platform 5 on which the toothed belt 1b runs. The platforms 4 and 5 are connected by a weighing frame 6 and connected to a load cell 8 via a mounting stand 7. 9 and 10 are driving sprockets, 1
1 is a motor with a clutch brake, and 12 is a drive chain.

The weighing conveyors 2 and 3 also have toothed belts 2a and 2.
b, 3a, 3b, mounting tables 13, 14, 15, 16,
Measuring frames 17, 18, mounting stands 19, 20, load cells 21, 22, drive sprockets 23, 2
4, 25, 26, motor 2 with clutch brake
7, 28, and drive chains 29, 30, toothed belts 2a, 2b, 3a, 3b
The difference is that, as shown in FIG. 2, they are arranged in an overlapping manner on the outside of the toothed belts 1a and 1b.

The toothed belts 1a and 1b of the weighing conveyor 1 have 2
A pair of support parts 31, 31 are provided, and these support parts 31, 31 have a partially raised surface on the side opposite to the toothed surface of the toothed belts 1a, 1b, as shown in FIG. As shown in FIG.
They are arranged at intervals so that they are located at the terminal end of the Toothed belt 2 of other weighing conveyors 2 and 3
Support portions 32, 3 are also attached to a, 2b, 3a, and 3b.
2, 33, 33 are provided.

Further outside the toothed belts 3a, 3b, endless chains 35a, 35b are stretched in parallel to the toothed belts 3a, 3b. 36, 37, 38, 39, 4
0 is a sprocket, 41 is a drive motor, 42 is a drive chain, and endless chains 35a, 35b.
is configured to run at the same speed as conveyors 1, 2, and 3.

Rod-shaped members 43, 43, . . . are attached in parallel to each other so as to straddle the endless chains 35a, 35b. The attachment is performed by means of members 44 provided on the endless chains 35a, 35b, as shown in FIGS. 4, 5, and 7. That is, each member 44 has an inverted trapezoidal hole 45, through which the tip of the rod-shaped member 43 is inserted. Therefore, the rod-shaped member 43 can move up and down.

In front of the starting ends of the conveyors 1, 2, 3, there is a guide section 4 for pulling down the endless chains 35a, 35b.
6, 46 are provided, and similarly conveyors 1, 46 are provided.
Endless chains 35a, 3 are located behind the terminal ends of the chains 35a, 3.
Guide members 47, 47 for pulling up 5b are provided.

An optical detector 48 is located near the guide members 46, 46.
a and 48b are provided, and are supported by the rod-shaped member 43 to detect the passage of the article to be weighed.
Based on this detection signal, the clutch brake motors 11, 27, and 28 are activated. Note that 79 is an infeed conveyor, and 50 is a delivery conveyor.

The high-speed weighing device configured in this manner operates as follows. Now, the weighing conveyors 1, 2, and 3 are stopped, and their supporting parts 31, 32, and 33 are all located at the position where the supporting part 31 shown in FIG. chain 35
It is assumed that a and 35b are running. In this state, the first article to be weighed that has been conveyed by the feed conveyor 49 is transferred onto the rod-shaped member 43 supported by the endless chains 35a, 35b as shown in FIG. , 3. This first article to be weighed is detected by an optical detector 48.
a, 48b, the toothed belts 1a, 1b of the weighing conveyor 1 are connected to the endless chains 35a, 35b.
Start running at the same speed.

Eventually, the endless chains 35a and 35b are connected to the guide member 4.
6 and 46, and when the first article to be weighed reaches the starting end of the weighing conveyor in that state, the support part 3 is pulled down as shown in FIGS. 4 and 6.
1 is a rod-shaped member 4 supporting a first article to be weighed;
3 and supports the rod-shaped member 43 thereof. Endless chains 35a, 35b and toothed belt 1
Since a and 1b have the same speed, this support state,
That is, since the weighing conveyor 1 travels with the support section 31 supporting the first article to be weighed and the supporting rod-shaped member 43, the first article to be weighed is conveyed while being weighed by the load cell 8. . 1st
When the articles to be weighed reach the terminal end of the weighing conveyor 1, the weighing conveyor 1 stops and the guide member 47
As a result, the rod-shaped member 43 supporting the first article to be weighed is again supported by the endless chains 35a and 35b, and the first article to be weighed is then delivered to the delivery conveyor 50. Please note that weighing conveyor 1
When the support portion 31 located at the terminal end of the weighing conveyor 1 is located at the starting end, the weighing conveyor 1 stops.

The support part 31 is the first object to be measured and the rod-shaped member 4
When the second article to be weighed is conveyed by the feed conveyor 49 while supporting and conveying the second article to be weighed, the second article to be weighed is transferred onto the rod-shaped member 43.
It is conveyed toward weighing conveyors 1, 2, and 3. When the optical detectors 48a, 48b detect the second article to be weighed, the toothed belts 2a, 48b of the weighing conveyor 2,
2b is run at the same speed as the endless chains 35a and 35b. Eventually, the endless chains 35a and 35b are pulled down by the guide members 46 and 46, and when the second article to be weighed reaches the starting end of the weighing conveyor 2 in this state, they support the second article to be weighed. The support member 32 is located directly below the rod-shaped member 43 and supports the rod-shaped member 43. Endless chain 3
5a, 35b and the toothed belts 2a, 2b have the same speed, the weighing conveyor 2 runs with the support member 32 supporting the second article to be weighed and the rod-shaped member 43 supporting it, When the second article to be weighed reaches the terminal end of the weighing conveyor 2, the support part 3 initially located at the terminal end of the weighing conveyor 2
1 is located at the starting end, the weighing conveyor 2 stops, and the rod-shaped member 43 supporting the second article to be weighed by the guide member 47 is again supported by the endless chain 35.
a and 35b, and the second article to be weighed is then delivered to the delivery conveyor.

The support part 32 is the second article to be weighed and the rod-shaped member 4
When the third article to be weighed is conveyed by the feed conveyor 49 while supporting and conveying the third article to be weighed, the third article to be weighed is transferred to the rod-shaped member 43,
It is conveyed toward weighing conveyors 1, 2, and 3. When the optical detectors 48a, 48b detect the third article to be weighed, the toothed belts 3a, 48b of the weighing conveyor 3,
3b is run at the same speed as the endless chains 35a and 35b. Eventually, the endless chains 35a and 35b are pulled down by the guide members 46 and 46, and when the third article to be weighed reaches the starting end of the weighing conveyor 3 in this state, they support the third article to be weighed. The support member 33 is located directly below the rod-shaped member 43 and supports the rod-shaped member 43. Endless chain 3
5a, 35b and the toothed belts 3a, 3b are at the same speed, the weighing conveyor 3 runs with the support section 33 supporting the third article to be weighed and the rod-shaped member 43 that supports it. The third article to be weighed is weighed by the load cell 22 and transported.
When the third article to be weighed reaches the terminal end of the weighing conveyor 3, the support part 33 initially located at the terminal end of the weighing conveyor 3 is located at the starting end, the weighing conveyor 3 stops, and the guide member 47 The rod-shaped member 43 supporting the third article to be weighed is supported by:
The endless chains 35a and 35b operate again, and eventually the third article to be weighed is delivered to the delivery conveyor. Thereafter, the fourth, fifth, etc. articles to be weighed are weighed while being transported in the same manner.

Therefore, according to this high-speed weighing device, even without using a sorting device or a collection device, it is possible to perform weighing with substantially the same capacity as the high-speed weighing device that was applied for on the same day. can. Moreover, when the articles to be weighed are conveyed onto the weighing conveyors 1, 2, 3 by the endless chains 35a, 35b and the rod-shaped member 43, the endless chains 35a, 35
Since the support parts 31, 32, and 33 can be changed from "b" to "b", articles to be weighed such as bottles and canned goods can be weighed at high speed.

In the above embodiment, a toothed belt is used as the endless strip of the weighing conveyors 1, 2, and 3, but an endless chain 52 may be used as shown in FIG. In this case, a member shown by reference numeral 54 in the figure may be used as the support portion. In addition, the optical detector 48
a, 48b are used to control the weighing conveyors 1, 2, and 3. However, if a pitch regulating device for the articles to be weighed is used for the infeed conveyor 49, the weighing conveyors 1, 2, and 3 will be controlled in synchronization with the pitch of the articles to be weighed. All you have to do is control. In addition, a guide member 46 is provided so that the endless chain 35
Although the chains a and 35b are pulled down, if the endless chains 35a and 35b are stretched from the beginning at the lowered positions, the guide member 46 is not necessary. Further, as a structure for changing the support of the rod-shaped member 43 from the endless chains 35a, 35b to the toothed belts 1a, 1b, 2a, 2b, 3a, 3b, the structure shown in FIG. 9 can also be used. That is, endless chains 35a, 35b
The vertical movement of the member 44 attached to the endless chain 35 is regulated by guide rails 56 and 58 so that it can move vertically.
The member 60 is integrally connected to the endless chain 35 with a and 35b.
a, 35b, and before pulling down the endless chains 35a, 35b with the guide member 46, the member 60
After the rod-shaped member 43 is supported by the guide member 46 and the endless chains 35a, 35b are lowered by the guide member 46, the rod-shaped member 43 is supported by the support portion 33.
Further, the supporting parts 31, 32, 33 are the endless chain 1a,
Two each are provided in 1b, 2a, 2b, 3a, and 3b, but three or more may be provided as long as they are arranged so that when one is at the starting end of the endless chain, the remaining ones are outside the transfer path. .

[Brief explanation of the drawing]

Fig. 1 is a side view showing the schematic structure of a high-speed weighing device according to this invention, Fig. 2 is a plan view showing the schematic structure of the device, Fig. 3 is a perspective view of a toothed belt used in the device, and Fig. 4 Figure 5 is a side view of the main parts of the device.
The figure is an enlarged cross-sectional view taken along line A-A in Figure 4, Figure 6 is an enlarged cross-sectional view taken along line B-B in Figure 4, Figure 7 is a partially omitted plan view of the main parts of the same device, and Figure 8 is another embodiment. FIG. 9 is a perspective view of the endless chain used in the example, and a side view of the main part of still another embodiment. 1a, 1b, 2a, 2b, 3a, 3b... Endless chain (endless running strip), 1, 2, 3... Conveyor, 8, 21, 22... Load cell (weight detection unit), 31, 32, 33 ...Support part (bearing part), 3
5a, 35b... Endless chain (endless running strip),
43... Rod-shaped member (supporting member), 46... Guide member.

Claims (1)

[Scope of Claim for Utility Model Registration] A plurality of endless running strips, each of which is a pair of endless running strips stretched in parallel, supporting and transporting an article to be weighed in the running direction thereof. A conveyor is formed, and at least two supporting portions are provided on the upper surface of the conveying surface of the pair of endless running strips of each of the conveyors, spaced apart from each other in the traveling direction, and these supporting portions are raised from the upper surface of the conveying surface. , and the supporting parts of the same conveyor are provided such that one is located at the starting end of the conveyor and the other is located at the terminal end of the conveyor, and a weight detection part capable of detecting the weight is provided for each of the conveyors. , A detector is provided near the starting end of each of the conveyors to detect that the article to be weighed has arrived, and each time this detector generates a detection signal, the support section located at the starting end of the conveyor is a drive unit for driving the endless running strips of the conveyor, and a pair of endless running strips stretched parallel to both outside sides of each of the conveyors and constantly running at the same speed as each of the conveyors; A transport conveyor is constructed by providing a plurality of article support members that are vertically movably loosely fitted to the pair of endless running strips that are constantly running, straddling each of the inner conveyors, and the above-mentioned articles on the transport conveyor. When the support part exists below the support member, the endless running strip of the conveyor is positioned at a position where the article support member is supported by the support part, and the article support member is in the range supported by the support part. A high-speed weighing device that transports objects to be weighed while maintaining a positional relationship that allows them to be weighed.