JP2000266590A - Container type weight detector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To measure a weight with higher accuracy by preventing the occurrence of vibrating disturbance that may occur when a container passes through a portion above a weighing section and effectively using a time period wherein the container is on the weighing section for weighing. SOLUTION: This container type weight detector comprises a container conveying means having an endless circulating body 10 running along a circulating passage including a horizontal weighing section at a predetermined speed, containers 11 for articles to be weighted each of which is advanced by receiving a conveying force from the endless circulating body 10 and being detachably loaded to the endless circulating body 10 such that the containers 11 are arranged in a line in the advancing direction of the endless circulating body 10 at predetermined intervals. It further comprises a weighing conveyer that supports the containers passing through the weighing section and conveys the articles and a forwarding conveyer which is provided at the previous stage of the weighing conveyer. They are provided so as to convey the articles at a speed higher than that of the endless circulating body 10 and at the same speed with each other. The container can be taken off from the endless circulating body 10 in the weighing section by using a speed difference between the endless circulating body 10 and the forwarding conveyer or the weighing conveyer. The forwarding conveyer and weighing conveyer are provided independently or constituted of a series of belt conveyers.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention mainly relates to a container-type weight sorter, and relates to a container-type weight detecting device for detecting the weight of a moving article while transferring an article contained or placed in the container together with the container. .

[0002]

2. Description of the Related Art A container-type weight sorter is provided with a container-type weight detector and a sorter. The container-type weight detector detects an article weight, and a sorter based on the detected article weight. Sort the goods. A container-type weight detector of a conventional container-type weight sorter sequentially loads and unloads a plurality of containers containing articles to be weighed onto a weighing unit, and weighs the articles to be weighed moving on the weighing unit together with the containers. Then, the weight including the container weight is detected, and the weight of the article is obtained by subtracting the known container weight measured in advance. There is also a method in which an article is moved from a container to a measuring section near the measuring section to measure only the article, and then returned to the container after the measurement.

A conventional container-type weight detecting device has the following (1)
There is a configuration as shown in FIGS. (1) A container (article mounting table) is directly mounted on a chain, a string, or a band-shaped endless circling body passing in contact with the weighing section on the weighing section, and the endless circulating body existing on the weighing section; A configuration for weighing the goods together with the container (Japanese Patent Publication No. 63-761)
No. 0). (2) The endless circling body is attached to the container (article support base), and the endless circulating body for the container is detected so that the part of the container that passes over the weighing unit comes into contact and the weight of the container and the stored article is detected. (Refer to Japanese Patent Publication No. 1-2350). (3) The container transporting endless circulator contacts the container and transports the container and the stored articles until the container reaches the measuring section,
A release state is created on the weighing unit that does not come into contact with the container, at which time the container and the stored articles are weighed while being conveyed by another endless revolving body (a conveyor of the weighing unit) driven in contact with the weighing unit, and The container is transported out of the measuring section by an endless circulating body, and the endless circulating body for conveying a container and another endless circulating body have the same speed (see Japanese Patent Publication No. 4-26411). (4) The endless circling body for transporting a container of (3) and another endless circulating body having a speed difference (Japanese Patent Publication No. 58-19203,
See Japanese Utility Model Laid-Open No. 55-119937). (5) A container (comb-shaped transport claw) is attached to the endless orbiting body, and when the container is transported to the vicinity of the measuring unit, it moves up and down with the conveyor (multiple transfer belts) of the measuring unit at approximately the same speed as the container. (See JP-A-59-4)
0120).

[0004]

According to the above-mentioned prior art (1), the portion existing on the measuring portion of the endless orbiting body is measured together with the container as a tare weight. To weigh an article, the tare weight is determined in advance, and the article is weighed together with the tare to subtract the tare weight. It is always relevant when weighing an article, and the weighing accuracy of that part affects the weighed value of the article. For this reason, the weight of the portion existing on the weighing section of the endless orbiting body should be weighed as accurately as possible. However, since the endless orbital body is rotationally driven by a motor and has many containers attached thereto, when the endless orbital body is rotationally driven, compared to a case where only the endless orbital body rotates due to the swing of the container having mass. Generates large changes in tension and vibration. Therefore, due to the vibration, a force is also generated in the endless orbiting body in the load detecting direction of the weight sensor having a positional relationship perpendicular to the traveling direction, and a non-negligible weighing error occurs. As described above, the weight of the portion existing on the weighing portion of the endless orbiting body is related to both the case where the tare weight is obtained and the case where the article is weighed. Will be.

In the above-mentioned prior art (2), the endless orbiting body is driven to rotate by a motor, and although the container is not fixedly mounted on the endless orbital body, a certain amount of pressing force is applied from the endless orbital body. Receiving and being transported by it. The endless orbital body directly receives vibration from the rotary drive device, and further receives vibration caused by the swing of many mounted containers and vibration caused by contact sliding between the endless orbital body and the fixed portion. Even when the container passes over the measuring section, the container is conveyed by the above-described conveying force provided by the endless orbital body, and the container and the endless orbital body are always in contact with a certain amount of force, so that the endless orbital body is in contact with the endless orbital body. Vertical vibrations of the body are provided to the container being weighed and the weight sensor. In addition, since the pressing force is not exactly perpendicular to the weight detection direction, a component force in the weight detection direction due to the pressing force is applied to the weight sensor via the container, which causes a reduction in weighing accuracy.

In the prior art described in (3), the container supported by the support member on the container transporting endless circling body is detached from the container transporting endless circulating body on the measuring section. Less time in the state of being released from,
Applying an impact to the measuring unit when the support member is detached causes an error. Particularly at the time of high-speed weighing, it is not possible to secure a sufficient time for the container to stay on the weighing unit.

In the prior art described in (4), the container is released from the endless circulating body for transporting the container on the weighing conveyor, and the container is released and weighed by the speed difference between the endless circulating body for transporting the container and the weighing conveyor. Since the container and the article are in an accelerated state during and immediately after getting into the measuring section, vibration is given to the measuring section. In particular, this effect is large at the time of high-speed weighing. The present invention solves such a problem of the conventional container-type weighing device by preventing the occurrence of vibrational disturbance when the container and the article pass over the weighing section, and preventing the article and the container from being placed on the weighing section. An object of the present invention is to provide a container-type weighing device that can be used effectively for weighing (for stability and measurement of a weighing device) during a certain period and that can perform weighing with higher speed and higher accuracy.

[0008]

SUMMARY OF THE INVENTION The present invention provides a container transport having an endless circulator for transporting a container provided to travel at a predetermined speed along a circulating path including a predetermined horizontal measuring section. Means, a container for a weighing article which is detachably attached to the endless circling body at intervals with a line in a traveling direction of the endless circulating body, and which advances by receiving a conveying force from the endless circulating body; and A weighing conveyor provided to support the container passing therethrough and transporting the container at a higher speed and at the same speed as the endless revolving body, and weighing the articles together with the container; and a feed conveyor disposed in front of the weighing conveyor. Then, the container in the measuring section is separated from the endless orbital body by a speed difference between the endless orbital body and the feeding conveyor and the weighing conveyor. That (claim 1).

With the construction in which the feeding conveyor is provided in front of the weighing conveyor, the container for storing the articles in use is first supported and transferred by the feeding conveyor when passing through the weighing section. By the difference, the container is separated from the container transporting endless circling body, then transferred to the weighing conveyor, weighed, and sent out from the measuring section to be conveyed by the container conveying endless circulating body. At the stage when the container moves to the infeed conveyor, an impact due to the speed difference occurs and acts on the infeed conveyor, but this impact is
Depending on how the feeding conveyor and the weighing conveyor are provided, they do not act on the weighing conveyor or do not easily act on them. Also,
While passing through the infeed conveyor, the containers and articles are in a state of constant motion. Therefore, containers and articles are conveyed to the weighing conveyor at the same speed, and the weighing of containers during weighing passing through the weighing conveyor is not affected or is hardly affected.
Then, when the containers are transferred from the infeed conveyor to the weighing conveyor, both containers are at the same transfer speed, so that the containers do not impact the weighing conveyor. As a result, the weighing accuracy is improved as compared with the related art.

In the above means (claim 1), it is preferable that the feed conveyor and the weighing conveyor are separately provided so as not to interfere with each other (claim 2). In this configuration, the feeding conveyor and the weighing conveyor are separately provided so as not to interfere with each other, so that when a container is transferred from the container transporting endless circulating body to the feeding conveyor, an impact due to a speed difference or the like may occur. Even if it acts on the infeed conveyor, there is no impact on the weighing conveyor, and of course, since the infeed conveyor and the weighing conveyor have the same speed, an impact etc. occurs when the container moves from the infeed conveyor to the weighing conveyor. Absent. Therefore, in this configuration, the weighing conveyor is
There is no disturbance that affects the weighing before the weighing, and during the weighing, the feeding conveyor and the endless circulator for transporting the container are reliably separated from each other, so that the weighing can be performed with higher accuracy.

In the above configuration (claim 2), it is preferable that the end of the measuring section is formed by interposing an independent sending-out conveyor at the same speed as that of the weighing conveyor at the next stage of the weighing conveyor ( Claim 3). In this configuration, when the delivery conveyor is not provided, the container receives resistance due to the speed difference when it is re-supported by the container-conveying endless circulator, and the resistance reaches the weighing conveyor and causes disturbance such as vibration. May affect the weighing accuracy. On the other hand, by providing the feed conveyor at the same speed as the weighing conveyor, it is possible to avoid the adverse effects such as transferring the weighed containers smoothly to the feed conveyor without resistance and giving vibration to the weighing conveyor. Accuracy can be measured.

In the above configuration (claim 2 or claim 3), the weighing conveyer has a plurality of sets of a plurality of parallel endless running strips spaced apart in the width direction, and each set includes a plurality of sets. The container is configured to be separately detectable in weight, and the container has a supported portion supported by any one of the sets of the endless running strips, and includes a plurality of types corresponding to the number of sets of the endless running strips. It is preferable that different types of components that are sequentially changed in the traveling direction are attached to the container transporting endless circling body (claim 4).

In this configuration, for example, the number of sets of endless running strips of the weighing conveyor is set to 2 (in some cases, the number of sets is 3 or more), and containers of different types at the positions of the supported portions of the endless running strips are alternated. If the length of the weighing conveyor is set to a little less than twice (the number of pairs) the container mounting pitch, the same type of container will not be on the same weighing conveyor Weighing time becomes longer. On the other hand, when the number of sets is one, the length of the weighing conveyor cannot be longer than the mounting pitch of the containers mounted on the container transporting endless rotator. This is because, when the weighing conveyor is lengthened, two or more containers always exist on the weighing conveyor, and the weighing conveyor cannot be weighed. Thus, a configuration in which the speed of the container transporting endless revolving body is the same and a configuration in which a weighing conveyor for measuring with one set of endless running strips is provided, and a configuration in which a measuring conveyor for measuring with two or more sets of endless running strips are provided In the case of, providing a weighing conveyor for weighing with two or more sets of endless running strips can lengthen the time that can be used for weighing, and can perform weighing with high accuracy without reducing the speed of the endless orbiting body for conveyance. In some cases, the speed of the transporting endless revolving body can be increased within a range that does not reduce the measurement accuracy, that is, the measurement speed can be increased.

In the above means (claim 1), the feeding conveyor and the weighing conveyor are formed as a conveyor comprising a common endless running strip supporting and running the container, and the endless running strip of the endless running strip is formed. It is preferable that a part at the former stage which travels while supporting the containers is configured as the feed conveyor, and a part at the next stage is configured as a weighing conveyor for detecting the weight of each container (claim 5).

In this configuration, the containers transferred on the infeed conveyor and the weighing conveyor are separated from the container transporting endless circulating body, so that the weighing is affected before and during weighing from the container conveying endless circulating body. There is no disturbance. In addition, since the feeding conveyor and the weighing conveyor share the endless running strip, the force generated by the acceleration of the container when the container moves to the feeding conveyor acts on the endless running strip, but the resistance in this case is reduced. The acting force due to is only related to the mass of one container separated from the endless orbiting body and the articles therein, and the force generated by the swinging motion of many containers connected to the conventional endless orbiting body. As described above, the acting force from the endless orbiting body side by an object having a large total mass is remarkably small, and the influence on the weighing of the weighing conveyor is extremely small. Moreover, since the acting force due to the acceleration of the container and the article acts only on the infeed conveyor, it does not affect the weighing. When the containers are transferred from the infeed conveyor to the weighing conveyor, the containers are already at the same speed as the weighing conveyor and there is no impact since they are a common endless running strip. Therefore, weighing with much higher precision than before can be performed.

In the above construction (claim 5), the feed conveyor and the weighing conveyor have a plurality of sets of a plurality of parallel endless running strips spaced apart in the width direction, and each set includes a plurality of sets. Separately, the weight is configured to be detectable by the weighing conveyor, and the container is configured by a plurality of types corresponding to the number of the sets, including a supported portion supported by any of the sets of the endless running strips. It is preferable that different types of components which are sequentially different in the traveling direction are attached to the container transporting endless circling body (claim 6).

In this configuration, similarly to the above, the configuration is such that the speed of the endless orbiting body for transporting containers is the same and a weighing conveyor is provided for weighing with one set of endless running strips, and two or more sets of endless running strips are provided. With the configuration provided with a weighing conveyor for weighing with a body, providing a weighing conveyor for weighing with two or more endless running strips can lengthen the time that can be used for weighing, and lower the speed of the endless circulating body for transporting containers. Measurement can be performed with high accuracy without performing In some cases, the speed of the container-conveying endless circling body, that is, the weighing speed, can be increased within a range that does not reduce the weighing accuracy.

In the above construction (claim 5), the infeed conveyor section and the weighing conveyor section have a plurality of sets of a plurality of parallel endless running strips spaced apart in the width direction. Each of the weighing conveyor portions is configured to have a different length, and the container has a supported portion corresponding to any one of the sets so as to be supported by one set of the endless running strips, and It is composed of a plurality of types corresponding to the number of sets having a supported portion length in the transfer direction that can be measured by the length of the corresponding weighing conveyor portion, and the container transporting endless circulator includes a container of the same type. It is preferable to have a container mounting portion for container replacement according to the type of container so that the container can be mounted close to the weighable state (claim 7). In this configuration, a plurality of types of containers, for example, two types of containers, large and small, are exchanged and used. Because it will be mounted close,
Since the weighing is performed by the weighing conveyor portion corresponding to the container, weighing can be performed efficiently and with high accuracy.

In the above construction (claim 5), the feed conveyor and the weighing conveyor are composed of eight or more parallel endless running strips spaced apart in the width direction, and a plurality of the endless running strips. Has at least four sets of
A set group consisting of a plurality of sets, each of which is equal to or more than a set,
Each of the set groups is also a plurality of types of weighing conveyors having different lengths of the weighing conveyor for each of the sets, and the weighing conveyor is configured to perform weight detection with a common weight detector for each set group. The container comprises a container of a type corresponding to each of a plurality of types having different lengths of the weighing conveyor, and each of the containers is supported by one of the weighing conveyors and a supported portion to be weighed. A container mounting part for container replacement, which is provided on the lower surface, and in which the container transporting endless circling body is mounted close to the same type of container in a measurable state along the transfer direction, corresponding to the type of container. It is preferable that containers of the same type and corresponding to different weighing conveyors are sequentially mounted in a front-to-back relationship (claim 8).

In this configuration, different types of containers, that is, containers weighed by weighing conveyors having different lengths, for example, large and small containers (three different types of supported portions) having different lengths in the container traveling direction (different lengths of the supported portions). In some cases, only the large container or the small container having the same length of the supported portion can be continuously mounted close to the endless orbiting body, and the size can be changed and used. That is, only the large container or only the small container can be supported by the endless orbiting body using the mounting portion for container replacement. In mounting the container, the container is mounted so that different ones of the supported portions are located before and after, that is, the same ones at the supported positions are not continuous in the front and rear. Also,
Since each set group has the same length of weighing conveyor for each set, there are different sets of weighing conveyor lengths for each set group, and different sets of weighing conveyors have different lengths. Are the same, and the weights of the weighing conveyer sections are detected by separate weight detectors in a set group having the same length of the weighing conveyer section. In addition, there are types of containers having the same length of the supported portions, in which the positions of the supported portions are different by the number of sets. Therefore, the length of the container to be supported is the same, that is, containers of the same size do not continuously pass through the same weighing conveyer, so that the time for which the containers stay in each weighing conveyer can be increased, so that the weighing accuracy can be further improved. Is improved. That is, it is possible to measure with higher accuracy even in a configuration in which the container is replaced and used.

In the above configuration (claim 5, claim 6, claim 7, or claim 8), the weighing conveyor is supported by a cradle that supports a predetermined length range of the endless running strip from below. Preferably, the weight applied to the cradle is detected. In this configuration,
Since the horizontal state of the upper surface of the endless running strip is maintained and the container is prevented from swinging, the weight can be detected satisfactorily.

In the above configuration (claims 1 to 9), the endless circling body is provided so as to be parallel to both sides of the article transfer path, and a container carrying bracket is attached to the endless circling body on both sides in a predetermined manner. A large number are provided at a container mounting pitch, and the container carrying brackets are attached in a pair so as to face inward to the endless orbiting bodies on both sides, and each of the surface members is long in the container traveling direction penetrating on both sides thereof. It is preferable that a long hole is formed, and the container is supported by inserting a tow bar protruding from both sides of the front end portion into the long hole with a margin. . The container is transported by pulling the towed rod at the trailing edge of the long hole until it reaches the measuring section, but when it reaches the measuring section, it is transported at a faster speed than the endless orbiting body, so the long hole is transported. The towed rod moves forward from the rear end edge of the endless body and separates from the endless orbiting body. The extra length of the elongated hole with respect to the towed rod in the direction of travel of the container may be any as long as the positional deviation caused by the speed difference from the endless orbiting body when the container is transported in the measuring section can be tolerated.

[0023]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described with reference to FIGS. This embodiment is a container-type weight detector 2 applied to a container-type weight sorter 1 as shown in FIG. 1, and is usually used in combination with a sorting device 3. The container-type weight detecting device 2 includes a container conveying means 9, a container 11, an infeed conveyor 12, a weighing conveyor 13, an outfeed conveyor 14, and the like.

The container conveying means 9 is mainly composed of an endless orbiting body 10 for conveying a container, and is provided with a container conveying bracket 16 as a container mounting portion, and a guide 22 described later is provided along the container conveying bracket 16. The endless orbiting body 10 is, for example, shown in FIG.
As shown in FIG. 1, the pair of chains 15, 15 are stretched so as to be parallel on both sides and respectively circulate along a vertical plane. It is driven to travel at a constant speed in the direction. Then, as shown in FIG. 1, the upper horizontal straight portion of the loop path of the chains 15, 15 is used as an article transfer path for weighing and sorting the articles to be weighed. A large number of pairs are provided at predetermined intervals on both chains 15, 15 such that a pair of container carrying brackets 16 as container mounting portions face inward. The mounting interval of the container carrying bracket 16 is the mounting interval of the container 11. The pair of container carrying brackets 16 has a surface member 17 facing each other, and has a long hole 18 penetrating on both sides and extending in the longitudinal direction of the chain 15 as shown in FIGS. The shape of the long hole 18 is a circular arc with a concave inner edge at the rear end. The arrow in the figure indicates the traveling direction of the chain 15.

In this example, many containers 11 are mounted on the endless circling body 10 in this example, and circulate along the circulating path of the endless circulating body 10. To explain one of the containers 11, as shown in FIG.
It has a rectangular upper opening of a predetermined length L2 with a width that can be arranged between 5 and 15, and has a lower surface that is slightly smaller inward than the outer edge of the planar shape on the lower surface of the bottom and has a flat lower surface. A rectangular supported portion 19 having a length L3 is protruded. The container 11 is provided with towed rods 20, 20 protruding coaxially outward on both sides on both sides of the front end in the transfer direction, and on both sides on the rear end in the transfer direction. The guide rollers 21 are coaxially supported in a protruding state. The towed rod 20 has a diameter sufficiently smaller than the width of the elongated hole 18. When the container 11 is mounted on the endless orbiting body 10, as shown in FIGS.
8 and 18, respectively. In addition, the endless orbiting body 10 is provided with rail-shaped guides 22 and 22 for supporting and guiding the guide rollers 21 and 21 at positions substantially along the inner sides of the chains 15 and 15 on both sides and controlling the attitude of the container 11. It is. The guides 22 support the rollers 21 in most of the orbital path of the endless orbiting body 10 to guide the container opening surface substantially along the traveling direction of the chains 15 and 15. In the distribution position, the vehicle is partially rotated at the distribution position to temporarily change the guide direction to perform the distribution operation.

Infeed conveyor 12, weighing conveyor 1
3. The delivery conveyor 14 is a belt conveyor having a horizontal top surface, which is an endless running strip, and as shown in FIG. 1, the same transfer is performed in the middle of a linear transfer path above the circuit path of the endless circuit 10. The container 11 is provided so as to be continuously continuous so that the container 11 can be transferred along the path. The feed conveyor 12, the weighing conveyor 13, and the feed conveyor 1
The transfer section provided with 4 is a measuring section, and the guide 22,
22 has been removed appropriately. That is, the container 1 during transfer
1 is a towed rod 2 at a position where the guides 22 and 22 disappear.
Although only the 0 and 20 sides are supported by the container carrying brackets 16 and the rear guide rollers 21 and 21 are about to descend, the feeding end of the conveyer 12 is positioned just below the lower side, and the lower surface of the container is supported. The portion 19 is supported. In addition, at the position where the supported portion 19 on the lower surface of the container is separated from the end portion of the sending-out conveyor 14, the guide rollers 21, 21 are supported by the guides 22, 22.

In this example, the infeed conveyor 12, the weighing conveyor 13, and the outfeed conveyor 14 are independent belt conveyors, respectively,
24 and 25, and the start and end of the conveyor are arranged close to each other so that the respective belts do not interfere with each other. The infeed conveyor 12, the weighing conveyor 13, and the outfeed conveyor 14 have their respective conveyor frames 26, 27, 2
8 is fixedly supported on the fixing portion 29 and provided at a fixed position.
In the weighing conveyor 13, the conveyor frame 27 and the fixed portion 2
9, the container 11 passing on the weighing conveyor and the weight of the articles therein are applied to the weight detector 30, so that the weight of the articles can be detected as an electric signal. ing. And conveyors 12, 13,
The transport speeds of the endless orbiting bodies 10 are slightly the same as those of the endless orbiting body 10. The difference in the speed at which the container 11 travels between the endless orbiting body 10 and the container 11 while the container 11 travels while being supported by a series of the infeed conveyor 12, the weighing conveyor 13, and the outfeed conveyor 14 is the container transport bracket. The length of the towed rod 20 is less than or equal to the length in which the towed rod 20 can move in the traveling direction inside the long hole 18 of the 16. With this configuration, when the container 11 reaches the measuring section and is supported by the infeed conveyor 12, the container transport bracket 16
Since the traveling speed of the feed conveyer 12 is faster than the traveling speed of the container 11, the state in which the trailing edge of the elongated hole 18 of the container carrying bracket 16 pushes the towed rod 20 of the container 11 is separated.
The towed rod 20 is positioned in the elongated hole 18 without contacting the inner edge of the elongated hole, and the container 11 is completely separated from the endless orbiting body 10 side. Then, as the container 11 moves, the towed rod 20 advances in the traveling direction in the long hole 18, but the container 11 is sent out to reach the end of the conveyer 14 before contacting the front edge of the long hole. Therefore, in this measuring section, the container 11 is completely separated from the endless orbiting body 10 side.

As shown in FIG. 1, the sorting device 3 is provided at a stage subsequent to the measuring section, and the articles in the container weighed in the measuring section are classified, for example, based on the weight, and the classification is performed. Are assigned according to the grades at the sorting portions 31a, 31b,... Provided according to the number of pieces, and are transferred to grade-specific chutes (not shown) and sent to desired positions according to the grades. Each of the distribution portions has the same configuration and is provided at an appropriate interval on the container transfer path. The structure of one distribution portion 31b will be described. A dividing guide portion 22b is provided in which the guides 22 on both sides are divided into a predetermined length at the same position, and the dividing guide portions 22b on both sides are connected to the front end in the transport direction. Are supported by a shaft 32 so as to be rotatable coaxially, and an air cylinder 33 is connected thereto. By operating the air cylinder 33, the dividing guide portion 22b moves the container 11 in a horizontal state in which the container 11 is passed as it is in a horizontal state coinciding with the front and rear guides 22, and with the container 11 moving in an inclined state rotated by a predetermined angle. It can be changed to a tilting state in which the tilting is performed. The inclined state of the dividing guide portion 22b is such that when the horizontal transfer state of the container 11 being pulled by the towed rod 20 and guided by the guide roller 21 by the guide 22 reaches the inclined dividing guide portion 22b, the towed rod 20 is tilted. Progresses horizontally as it is, but the guide roller 21 descends and separates according to the inclination.
1 releases the article by tilting backward. For example, the starting end of the chute is located at the article discharge position.

FIG. 5 is an enlarged view of the portion shown in FIG. 1. In the illustrated container 11, the length L2 in the traveling direction of the opening on the upper surface is long and the length L3 of the bottom 34 is short. The containers 11 are continuously arranged at a predetermined gap and conveyed at a high speed.
In most cases, articles are supplied from above the container 11, and since there are many examples using an automatic feeder, it is better to make the openings of the containers as wide as possible so that they do not touch each other to ensure that the articles are contained in the container. Because. In addition, the length L3 of the bottom 34
Is short, if the length L3 of the bottom 34 is the same as the length L2 of the opening, only one container 11b is
This is to compensate for the short weighable period present on 3. That is, in FIG. 5, when the length of the weighing conveyor L1 and the speed of the weighing conveyor 13 and the like are V, the distance when the container 11 is completely placed on the weighing conveyor 13 is L1-L3, so the staying time T Is T =
(L1-L3) / V. In order to increase the weighing accuracy when the conveyor speed V is given, the length L3 of the bottom 34, which can be reduced, is made as small as possible within a range that does not deteriorate the weighing accuracy due to overturning or instability during conveyance. This is because (L1−L3) should be made as large as possible to extend the stay time T. The container length dimension L2 is determined from the size of the article to be weighed and the size of the entire machine. When the container size is determined, the length of the weighing conveyor is set so that the two containers never ride on the weighing conveyor 13 at the same time. L1 is determined. That is, the length L1 of the weighing conveyor 13 is given from another factor, not from the viewpoint of accuracy.

The container type weight sorter 1 operates as follows. The articles to be sorted are sequentially placed in a suitable place before the weighing section (a section composed of the infeed conveyor 12, the weighing conveyor 13, and the outfeed conveyor 14) for each of the containers 11 that are horizontally transferred with the opening upward. Supplied. The container 11 containing the article is weighed while passing through the weighing section, the article weight obtained by subtracting the pre-measured container weight is detected and classified, and the container 11 is assigned to the sorting unit corresponding to the grade. For example, when the air cylinder 33 reaches the distribution unit 31b, the air cylinder 33 operates,
b rotates and the articles are sorted and released.

The weight detection by the container type weight detector 2 can be measured with high precision as follows. Since the container 11 is moving at the speed of the endless orbiting body 10 when reaching the measuring section, the container 11 generates an acceleration force due to a speed difference between the endless orbiting body 10 and the feeding conveyor 12, but is supported by the feeding conveyor 12. After a while, it is in a constant motion state with the feeding conveyor, and the chains 15, 15 constituting the endless orbiting body 11 are formed.
Completely disengaged from That is, the container 11 is in a state where the lower surface of the supported portion 19 is supported by the feeding conveyor 12, the guide roller 21 is separated from the guide 22, and the towed rod 20 is separated from the rear edge of the long hole 18 of the container carrying bracket 16. Therefore, it is in a state where it is supported and supported only by the infeed conveyor 12. Then, the container 11 is transferred to the weighing conveyor 13 at the same speed as the weighing conveyor, and further transferred to the sending-out conveyor 14, and the guide roller 21 is provided at the end thereof.
Is supported by the guide 22, and is pushed again by the rear end edge of the long hole 18 to be transported. Therefore, when the container 11 moves to the weighing conveyor 13 and the transfer conveyor 14, no special vibrational disturbance occurs, and the container 11 is completely separated from the chain 15, and the load detector 30 is connected to the container 11 and the article. Only weight can be detected and weighed with high accuracy.

A second embodiment will be described with reference to FIG. The container-type weight detection device 2a has a configuration capable of responding to a request from a user for a high weighing capability in weight detection, that is, a specification of a large value of the number of times of weighing per unit time. Container 11a,
11b, feeding conveyor 12, measuring conveyor 13a,
13b and a guide 22 not shown. The difference from the first embodiment is that the weighing conveyor 13
a, 13b and the lower surface of the containers 11a, 11b, and the fact that no delivery conveyor is provided,
This different point will be described, and the other configuration is substantially the same as that of the first embodiment, so that the illustration is omitted. Note that equivalent parts are indicated by the same reference numerals.

The weighing conveyors 13a and 13b are similar and separately formed, one of which is provided with two endless running strips 35, 35 and a weight detector 36, and the other is provided with two sets of one endless running strips 35, 35.
A set of endless running strips 37, 37 and a weight detector 38 are provided. Each of the endless running strips 36, 36, 38, 38 is stretched on pulleys provided on the frames 39, 40 of each set so that the upper running portions run in parallel on the same horizontal plane, and the conveyor length is Is formed so as to have a length approximately twice as long as the length of the container 11a (or 11b), and is driven by the rotation drive units 41 and 42 for each set, at the same speed slightly faster than the endless orbiting body 10. To run. The upper running portion of each endless running body runs horizontally with the lower surface supported by the frame side,
The upper surface supports a predetermined container 11a or 11b. The containers 11a and 11b are as shown in FIG.
(B) and (c), one set of the endless running strip 3
Ridges 43, 43 as supported parts supported by 5, 35
And a pair of endless running strips 37, 37 supported by the other set of endless running strips 37, 37
4 and a container 11b having a lower surface 4 are prepared. The two types of containers 11a and 11b are alternately mounted on the endless orbiting body 10 in the longitudinal direction. Weighing conveyor 1
The feed conveyor 12 at the preceding stage of 3a, 13b may be a single flat belt conveyor similar to that of the first embodiment, but in this case, the weighing conveyors 13a, 13b
Has two sets of endless running strips 45, 45, 46, 46 corresponding to the endless running strips 35, 35, 38, 38 of FIG. It is configured to be driven to rotate at the same traveling speed as the conveyors 13a and 13b.

In this configuration, since the container 11a or 11b that has reached the feeding conveyor 12 is transferred at the speed of the feeding conveyor 12, the container 11a or 11b is separated from the endless orbiting body 10 as in the first embodiment. Is transferred to the weighing conveyor 13a or 13b. At this time, the container 11a is put on the weighing conveyor 13a, and the container 11b is moved to the weighing conveyor 13b.
On the weighing conveyor 13a or 1
At the end of 3b, it is again conveyed by the chain 15 of the endless orbiting body 10 and the guide 22 (not shown).

Although the lengths of the weighing conveyors 13a and 13b are respectively twice as long as the containers, the containers 11a and 11b adjacent to each other in the transport direction are of the same type because the supported portions are of different types. Two weighing containers do not ride on 13a or 13b at the same time. Therefore, since the length of the weighing conveyor is long, one weighing container can stay on the weighing conveyor for a longer time, and weighing can be performed with higher accuracy. That is, the weighing accuracy is better when the object to be weighed stays on the weighing conveyor for as long as possible, considering the degree of convergence of the transient response of the balance. Therefore, in such a configuration, when high weighing capability is required in the weight detector, that is, when a specification in which the number of weighing times per unit time is large is required, more specifically, the weighing is performed with high accuracy corresponding to a faster conveyance speed. When requested to be able to do it, we can respond satisfactorily. The reason for omitting the one corresponding to the feed-out conveyor 14 in the first embodiment is that the positional relationship between the guide 22 and the weighing conveyors 13a and 13b is determined by changing the position of the bottom surface of the container 11a or 11b after the weighing operation is completed. If the guide 22 receives the guide roller 21 of the container at the moment when the supported part (protrusion) separates from the weighing conveyor 13a or 13b, the deceleration of the container starts from this point, but the subsequent container This is because if the container carrying bracket 16 pulls the tow bar 20 before the contact, the measuring accuracy is not affected.

A third embodiment will be described with reference to FIG. This embodiment is a container type weight detecting device 2b which is slightly simpler than the first embodiment,
8. The configurations of the weighing conveyor 49 and the sending-out conveyor 50 are different. The different parts will be described next, and the configuration of the other parts is substantially the same as that of the first embodiment. Therefore, the same parts are denoted by the same reference numerals and the description is omitted.

Infeed conveyor 48, weighing conveyor 4
9. The sending-out conveyor 50 is, for example, a belt conveyor, and is constituted entirely by a series of endless running strips (endless belts) 60, and is stretched so that the upper portion for transporting the containers is on the same horizontal plane. The one rotation drive unit 51 is provided so as to travel at a slightly higher speed than the endless orbiting body 10. The feed conveyor 48, the weighing conveyor 49, and the feed conveyor 50 each have a frame 52, 53, 54 that is separately supported by a fixed portion, and each of the frames 52, 53, 54 runs on the upper horizontal traveling portion of the belt conveyor. Cradles 55, 56 and 57 are provided to support from below. Then, in the weighing conveyor 49, the weight detector 58 is interposed between the receiving base 56 and the fixed portion, and the receiving base 5
6 can be detected.

In this configuration, the container 11 that has reached the infeed conveyor 48 is transferred at the speed of the infeed conveyor 48, and therefore, as in the first embodiment,
It is separated from the endless circulating body 10, transferred to the measuring conveyor 49, weighed by the weighing conveyor 49, and transferred to the sending-out conveyor 50. And will be conveyed.

In this configuration, the container 11 transported on the infeed conveyor 48, the weighing conveyor 49, and the outfeed conveyor 50 is separated from the container transporting endless circling body 10, so that the container 11 is not weighed from the endless circulating body 10 before weighing. Also, there is no disturbance during weighing that affects weighing. In addition, since the infeed conveyor 48, the weighing conveyor 49, and the outfeed conveyor 50 share one endless running strip 60, the force generated by the acceleration generated when the container is moved to the infeeding conveyor 48 generates the endless running strip 60. However, the acting force in this case is only related to the mass of the one container 11 separated from the endless circulating body 10 and the article therein, and the force of the container connected to the conventional endless circulating body is Compared with the acting force from the endless orbiting body having a large total mass such as vibration, the effect on the weighing of the weighing conveyor 49 is extremely small compared to the acting force from the endless orbiting body side. In addition, the force due to the acceleration acts only on the feeding conveyor via the endless orbiting body. When the container 11 moves from the feeding conveyor 48 to the weighing conveyor 49, the container is in a constant speed state with the feeding conveyor and the weighing conveyor, and applies an impact force to the weighing conveyor because it is a common endless running strip. There is nothing. Further, at the stage where the transfer from the end of the delivery conveyor 50 to the transfer by the endless orbiting body 10 and the guide 22 is started, the guide roller 21 is supported by the guide 22 when the supported portion 19 of the container 11 starts to come off from the delivery conveyor 50 and deceleration starts. By doing so, the deceleration progresses gradually for a very short period, and the endless orbiting body 10
Is faster, and the container carrying bracket 16 is
0 is engaged. This transition state involves almost no impact and has almost no effect on the weighing accuracy. Therefore,
Measuring with much higher precision than before becomes possible.

The fourth embodiment will be described with reference to FIGS. 8 and 9. The fourth embodiment has a configuration that satisfies the requirement of the specification of a large value of the number of times of weighing per unit time as in the second embodiment. It is configured to be compatible with a conveyor that uses a series of endless belts for weighing and feeding conveyors. Container type weight detecting device 2 of the fourth embodiment
c is an endless orbiting body 10, containers 11a and 11b, feeding conveyors 48a and 48b, and measuring conveyors 49a and 49.
b, delivery conveyors 50a and 50b, a guide (not shown), and the like. The third embodiment is the same as the third embodiment in that the infeed, weighing, and outfeed conveyors are constituted by a series of endless running strips. However, as in the second embodiment, a plurality of sets of parallel endless running strips are used. They differ in that they are composed of bodies. The points different from the third embodiment will be described.

The infeed conveyors 48a and 48b, the weighing conveyors 49a and 49b, and the outfeed conveyors 50a and 50
b is, for example, four endless running strips 61, 62 having a narrow width;
A series of belt conveyors 63 and 64, the upper portions of which convey the containers are stretched so as to be parallel and spaced apart in the width direction and on the same horizontal plane, and have four endless running strips 6;
One, 62, 63 and 64 are provided so that all of them run at the same speed by one rotation drive unit 65 and run at a speed slightly higher than the endless orbiting body 10. Each feeding, weighing,
The delivery conveyor is composed of two sets, and one set of containers is transferred for each set, and the two sets are transferred.
Different types of containers move on the same single transfer path. That is, one set of the endless running strips 61, 63
The other set of endless running strips 62,
64 transfers the container 11b. Therefore, a set of endless running strips 6 is provided on the lower surface of the container 11a.
Protrusions 66, 66, which are supported portions corresponding to 1, 63, are provided. On the lower surface of the container 11b, ridges 67, which are supported portions corresponding to another pair of endless running strips 62, 64, 67 are provided. In this case, the other portions such as the lengths of the two types of containers 11a and 11b are the same, and are alternately mounted on the endless orbiting body 10.

Each endless running strip 61, 62, 63, 64
Are the feed conveyors 48a and 48b and the weighing conveyor 4
9a, 49b, a receiving table 6 for supporting the upper horizontal traveling unit from the lower surface for each of the delivery conveyors 50a, 50b.
8, 68, 69, 69, 70, 70, 71, 71, 7
2, 72, 73, 73 are provided. Each cradle is provided on a frame supported by the fixed portion. In the weighing conveyor 49a, the weight detector 58a is interposed between the cradles 70, 70 and the fixed portion to act on the cradle 70, 70. The weight of the weighing conveyor 49b,
The weight acting on the receiving tables 71, 71 can be detected by interposing a weight detector 58b between the base 1 and the fixed portion. The length L5 of the weighing conveyor 49a, 49b, that is, the length L5 of the cradle 70, 71 is the container 11a or 11
The length is determined to be approximately twice the length L4 of b. The length of the other cradle 68, 69, 72, 73 is slightly longer than the length L4 of the container. The configuration of the other parts is substantially the same as that of the second embodiment, so that the illustration is omitted. Note that equivalent parts are indicated by the same reference numerals.

The container-type weight detecting device 2c having such a structure operates as follows. Infeed conveyor 48
Since the container 11a or 11b that has reached the position a or 48b is transferred at the speed of the feed conveyor 48a or 48b, the container 11a or 11b is separated from the endless orbiting body 10 as in the first embodiment, and Transferred to weighing conveyor 49a or 49b, i.e. container 11a rides on weighing conveyor 49a, container 11b rides on weighing conveyor 49b, weighed respectively, and the next outgoing conveyor 50a.
(a) or (50b), and is conveyed again by the endless orbiting body 10 and the guide 22 (not shown) at its end.

The length of each of the weighing conveyors 49a and 49b is approximately twice that of the container. However, as described in the second embodiment, the containers adjacent in the transport direction have different supported portions. Of different types, two on the same weighing conveyor
Since the individual weighing containers do not ride at the same time and the length of the weighing conveyor is long, one weighing container can stay on the weighing conveyor for a longer time, and can measure with higher accuracy. And, when a high weighing capability, that is, a specification of a large number of times of weighing per unit time is required in the container-type weight detector, it can sufficiently cope with it. In this embodiment, 2
Although the configuration uses two (two) weighing conveyors, the weighing sections are overlapped in the container phase direction, although the weighing accuracy is improved compared to the case where only one weighing conveyor is used. There is an advantage that the size of the entire dimension hardly changes. In the container-type weight detecting device 2c according to the fourth embodiment, two weighing conveyors 49a and 49b must be provided independently since the weighing conveyors 49a and 49b must not interfere with each other.
The infeed and outfeed conveyors may use the receiving trays 68 and 69 and the receiving trays 72 and 73 as a common receiving tray. Also,
When higher precision and weighing capacity are required, the number of weighing conveyors may be two (two) or more, that is, two or more sets of weighing conveyors.

FIG. 10 shows a fifth embodiment. In the fourth embodiment, the configuration in which the two weighing conveyors are stacked so that the front and rear positions coincide with each other in the container traveling direction has been described. However, as long as dedicated containers are prepared for each of the plurality of weighing conveyors, the endless The respective weighing conveyors may be arranged at arbitrary positions along the orbiting body 10 with their positions shifted back and forth. An example is the container-type weight detection device 2d according to the fifth embodiment. The fifth embodiment is different from the fourth embodiment in that two sets of conveyors constituting a weighing section, that is, a set of a sending conveyor 48a, a measuring conveyor 49a, a sending conveyor 50a, and a sending conveyor 48b. The only difference is that the set of the weighing conveyor 49b and the sending-out conveyor 50b is provided with the position shifted back and forth.

FIG. 11 shows a sixth embodiment. In a container-type weight detection device, when the articles to be weighed have a large size and a small size, and a container of a predetermined small size can weigh small-sized articles but cannot weigh large-sized articles, another large-sized article cannot be weighed. In some cases, containers are prepared, and all containers are replaced and weighed according to the size of the article. Container type weight detecting device 2f of this embodiment
Has a configuration in which large and small containers can be exchanged. The container-type weight detector 2f includes a large container 11L and a small container 11S.
Assuming that the ratio of the lengths in the respective traveling directions is 2 to 3, the endless orbiting body 10 is used so that both containers can be exchanged and used.
As shown in FIG. 11 (a),
The container transport brackets 16 are provided at a pitch such that any of the large and small containers can be mounted. Feeding conveyor 8 for measuring section
0a, 80b, weighing conveyors 81a, 81b, and sending-out conveyors 82a, 82b are composed of two sets of endless running strips 83, 86, 84, 85, each of which includes two endless running strips.
Is similar to the fourth embodiment, except that one weight detector 94 is used. That is, the receiving bases 89 and 90 of the weighing conveyors 81a and 81b are attached to the same frame 93, and the length in the container traveling direction differs from the lengths L11 and L1 according to the lengths of the large and small containers 11L and 11S. There is a difference in that one weight detector 94 is provided between the frame 93 and the fixing portion 95. In addition, the infeed conveyors 80a, 8
0b, receiving trays 87 of the sending conveyors 82a, 82b,
Reference numerals 88, 91, and 92 fix the frame to the fixing portion.

In the large and small containers 11L and 11S, two sets of endless running strips correspond to each other.
The projecting ridges 96, 96 as supported portions of the large container 11L have a spacing dimension D11 corresponding to the spacing between the endless running strips 83, 86,
The projections 97, 97 as supported portions of the small container 11S have an interval dimension D1 corresponding to the interval between the endless running strips 84, 85. The length L11 of the receiving base 89 of the weighing conveyor 81a is an optimal length for the length L31 of the supported part of the large container 11L, and the length L1 of the receiving base 90 of the weighing conveyor 81b is the supported part of the small container 11S. Is the optimum length for the length L3. Although illustration is omitted, the endless running strips 83 to 86 are driven by one drive source at the same speed and at a speed slightly higher than that of the endless orbiting body 10.
11S has a towed rod 20 and a guide roller 21, and is guided by a guide 22 and transferred along a predetermined transfer path.

In use of the container-type weight detecting device 2f,
When weighing with one type of weighing conveyor and replacing large and small containers 11L and 11S having different lengths in the traveling direction, conventionally, the length of the weighing conveyor is determined based on one of the large and small containers, On the other hand, a decrease in weighing speed or weighing accuracy could not be avoided. However, in this embodiment, the weight can be measured without lowering the speed and accuracy even if the large and small containers are exchanged and used. That is, since the length of the weighing conveyors 81a and 81b is determined by the length of the receiving trays 89 and 90 determined to be arbitrary lengths, the receiving trays 89 and the small containers 11S having the optimal length for the large container 11L are set in advance. This is because the cradle 90 having an optimal length can be obtained.

FIG. 12 shows a seventh embodiment. The container-type weight detection device 2f includes large containers 11L-1, 11L-2, and small containers 11S-L having large and small lengths in the respective traveling directions.
1, 11S-2, so that large and small containers can be exchanged for use. In this example, the small container has a small width, but the towed bar 16 is formed long and can be mounted on the same container carrying bracket 16 as the large container. In the container, as shown in the drawing, a ridge as a supported portion has different dimensions in the container traveling direction depending on the size of the container, and has different width positions in two types for the large container and two types for the small container. It is. That is, the large container 11L-1 includes the projections 96a, 96a and the large container 11L-
2 is ridges 96b, 96b, and small container 11L-1 is ridge 9
7a and 97a, and the small container 11L-2
b. Although not shown, the transport chain 15 of the endless orbiting body 10 is provided with container transport brackets 16 at a pitch such that both large and small containers can be mounted in substantially the same manner as shown in FIG. Although illustration of all the conveyors in the measuring section is omitted, the configuration is such that two units of the sixth embodiment are combined.

That is, eight endless running strips 100, 101, 102, 10 constituting four sets of conveyors, one set of two.
3, 104, 105, 106 and 107 are stretched, and a frame 93a supported by one of the weight detectors 94a is provided.
Are provided with two sets of receiving bases 89a and 90a, and two sets of receiving bases 89b and 90b are provided on a frame 93b supported by the other weight detector 94b. The endless running strips 100 and 106 received by the cradle 89a support the large container 11L-1, and the endless running strips 101 supported by the cradle 89b.
107 supports the large container 11L-2, and the endless running strips 102, 104 supported by the cradle 90a are small containers 11S-.
1 and an endless running strip 1 supported by a cradle 90b
03 and 105 support the small container 11S-2, and the large containers 11L-1 and 11L-2 also support the small container 11S-2.
S-1 and 11S-2 also have an endless orbiting body 10 (not shown).
Are mounted alternately on different types of supported portions.

This configuration is a configuration in which the configuration of the sixth embodiment is applied to the configuration of the fourth or fifth embodiment. Therefore, unlike the fourth or fifth embodiment, two weighing containers do not ride on the same weighing conveyor at the same time, and the length of the weighing conveyor can be increased.
The advantage that individual weighing containers can stay on the weighing conveyor for a longer period of time and weigh with higher accuracy, and high weighing capacity, that is, a specification with a large number of weighing times per unit time, was required in the container type weight detection device Sometimes, the advantage that can be sufficiently dealt with, and further, as in the sixth embodiment,
Even if the large and small containers are replaced and used, that is, the large container 11L
Even if the small containers 11S-1 and 11S-2 are used interchangeably with the small containers 11S and 11L-2, the advantage of being able to measure without lowering the speed and accuracy is obtained.

In the above-described embodiment, the endless orbiting body 10 is an example of the chains 15 and 15, but may be a string, a belt, a wire, a rope, or the like. Further, the endless running strip may be a string, a chain, a wire, a rope, or the like.

[0053]

According to the first aspect of the present invention, there is an effect that the measuring accuracy is improved as compared with the related art. The invention according to claim 2 is that the weighing conveyor is not subject to disturbances that affect weighing before weighing, and that the weighing conveyor is reliably separated from the feeding conveyor and the container transporting endless circulating body during weighing. Therefore, there is an effect that measurement with higher precision can be performed. According to the third aspect of the present invention, since the container after the measurement is smoothly transferred to the feed-out conveyor without generating the acceleration (deceleration) speed, it is possible to avoid an adverse effect such as giving a vibration or the like to the measurement conveyor. This has the effect of enabling accurate measurement. According to the fourth aspect of the invention, the time that can be used for weighing can be extended, the weighing can be performed with high accuracy without reducing the speed of the endless orbiting body for conveyance, and the weighing speed is increased within a range where the weighing accuracy is not reduced. An effect that can be achieved is achieved. The invention described in claim 5 has an effect that measurement can be performed with much higher precision than in the past. The invention described in claim 6 has the effect of being able to measure with high precision because a measuring conveyor with two or more endless running strips can be provided to extend the time that can be used for measurement. The invention according to claim 7 is a container-type weight detecting device that replaces and uses a container, and has an effect of being able to measure efficiently and with high accuracy even if the container is replaced with a different type of container. The invention described in claim 8 has the effect of being able to measure with higher precision in a configuration in which containers are exchanged and used. According to the ninth aspect of the invention, there is an effect that the weight can be detected satisfactorily.

[Brief description of the drawings]

FIG. 1 is a schematic side view showing the entire configuration of a first embodiment of the present invention.

FIG. 2 is a partially enlarged plan view seen from the direction of arrow A in FIG.

FIG. 3 is a partial perspective view showing a state of the container being pulled by the endless running strip of the embodiment.

FIG. 4 shows a relationship between a towed rod and a long hole according to the embodiment;
(A) is a partial side view in a container towing state, and (b) is a partial side view in a container detached state.

FIG. 5 is a partially enlarged side view of the same embodiment.

6A and 6B show a second embodiment of the present invention, in which FIG. 6A is a schematic side view of a main part, FIG. 6B is a schematic plan view thereof, and FIG. It is a schematic rear view.

FIG. 7 is a schematic side view of a main part showing a third embodiment of the present invention.

8A and 8B show a fourth embodiment of the present invention, wherein FIG. 8A is a schematic side view of a main part, and FIG. 8B is a schematic plan view of the same.

9A and 9B show the fourth embodiment, wherein FIG. 9A is a schematic side view of a main part, FIG. 9B is a schematic plan view of the same, and FIG. 9C is a schematic rear view of the container shown in relation to FIG. FIG.

10A and 10B show a fifth embodiment of the present invention, wherein FIG. 10A is a schematic side view of a main part, and FIG. 10B is a schematic plan view thereof.

11A and 11B show a sixth embodiment of the present invention, wherein FIG. 11A is a schematic side view of a main part, FIG. 11B is a schematic plan view thereof, and FIG. 11C is a schematic view of a container shown in relation to FIG. It is a schematic rear view.

12A and 12B show a seventh embodiment of the present invention, wherein FIG. 12A is a schematic side view showing large and small containers, FIG. 12B is a schematic plan view of a main part for explaining the structure of the main part, and FIG. () Is a schematic rear view of the container shown in relation to (b).

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Container-type weight sorter 2 Container-type weight detector 3 Sorting device 10 Endless orbiting body 11 Container 11a Container 11b Container 11L, 11L-1, 11L-2 Large container 11S, 11S-1, 11S-2 Small container 12 Feeding conveyor DESCRIPTION OF SYMBOLS 13 Weighing conveyor 14 Sending-out conveyor 15 Chain 16 Container conveyance fixture 17 Surface member 18 Elongated hole 19 Supported part 20 Towed rod 21 Guide roller 22 Guide 23, 24, 25 Rotation drive part 26, 27, 28 Conveyor frame 29 Fixed part 30 Weight detector 34 Bottom 35 Endless running streak 36 Weight detector 37 Endless running streak 38 Weight detector 39, 40 Frame 41, 42 Rotation driving unit 43, 44 Protrusion 45, 46 Endless running streak 47 Rotation driving unit 48 , 48a, 48b Feeding conveyor 49, 49a, 49b Measuring conveyor A 50, 50a, 50b Send-out conveyor 51 Rotary drive unit 52, 53, 54 Frame 55, 56, 57 Receiving stand 58, 58a, 58b Weight detector 60 Endless running strip 61-64 Endless running strip 65 Rotation drive unit 66 Protrusion 68-73 Receiving stand 80a, 80b Feeding conveyor 81a, 81b Weighing conveyor 82a, 82b Sending conveyor 83-86 Endless running strip 87-92 Receiving stand 89a-1, 89a-2 Receiving stand 90b-1, 90b-2 Cradle 93, 93a, 93b Frame 94, 94a, 94b Weight detector 95 Fixing part 96, 97 Ridge 100-107 Endless running strip

Claims (10)

[Claims] 1. A container conveying means having an endless circulating body for container conveyance provided to run at a predetermined speed along a circulating path including a predetermined horizontal measuring section, and a traveling direction of the endless circulating body. And a container for weighing articles which is detachably mounted on the endless orbital body at an interval and advances by receiving a conveying force from the endless orbital body, and the endless supporting the container passing through the measuring section. A weighing conveyer provided so as to be faster than the revolving body and being transported together at the same speed, and a weighing conveyor for weighing the articles together with the container, and a feeding conveyor arranged at a stage preceding the weighing conveyer, wherein A container in the measuring section is detached from the endless orbital body by a speed difference between the container and the measuring conveyor. 2. The container-type weight detecting device according to claim 1, wherein the feeding conveyor and the weighing conveyor are provided independently so as not to interfere with each other. Detection device. 3. The container-type weight detecting device according to claim 2, wherein an independent sending-out conveyor having the same speed as the weighing conveyor is interposed at a subsequent stage of the weighing conveyor to form an end of the weighing section. A container-type weight detector. 4. The container-type weight detecting device according to claim 2, wherein the weighing conveyor includes a plurality of sets each including a plurality of parallel endless running strips spaced apart in a width direction. The container has a supported portion supported by any one of the sets of the endless running strips, and the container corresponds to the number of sets of the endless running strips. A container-type weight detection device comprising a plurality of types and sequentially different types in a traveling direction are attached to an endless orbiting body for transporting containers. 5. The container-type weight detecting device according to claim 1, wherein the feeding conveyor and the weighing conveyor are formed on a conveyor including a common endless running strip that supports and runs the container. A container-type weight detecting device, wherein a portion of the endless running strip that travels while supporting the container is a feed conveyor, and a portion of the next stage is a weighing conveyor that detects the weight of each container. 6. The container-type weight detecting device according to claim 5, wherein the infeed conveyor and the weighing conveyor include a plurality of sets each including a plurality of parallel endless running strips spaced apart in a width direction. The weight of each set is separately detected by the weighing conveyor, and the container has a supported portion supported by any of the sets of the endless running strips, and corresponds to the number of the sets. A container-type weight detection device comprising a plurality of types and sequentially different types in a traveling direction are attached to an endless orbiting body for transporting containers. 7. The container-type weight detecting device according to claim 5, wherein the feed conveyor portion and the weighing conveyor portion are formed of a plurality of parallel endless running strips spaced apart in a width direction. A plurality of sets are provided so that the length of the weighing conveyor portion is different for each set, and the containers corresponding to any of the sets are supported by one set of the endless running strips. It has a plurality of types corresponding to the number of sets having a supported portion and a length of a supported portion in a transfer direction that can be measured by a length of the corresponding measuring conveyor portion, and the container transporting endless circulating body is A container-type weight detecting device, comprising a container mounting portion for container replacement according to the type of container so that containers of the same type are mounted close to each other in a weighable state. 8. The container-type weight detecting device according to claim 5, wherein the feed conveyor and the weighing conveyor are each composed of eight or more parallel endless running strips spaced apart in a width direction, and the endless conveyor. 4 sets of running strips
Plural types of weighing conveyors having at least four sets, each of the four or more sets being a set group consisting of the same plurality of sets, each of the set groups being similarly different in length of the weighing conveyor for each set. And the weighing conveyor is configured to perform weight detection with a common weight detector for each set group, and the container is a container of a type corresponding to each of a plurality of types having different lengths of the weighing conveyor. Each of the containers has a supported portion supported on one of the weighing conveyors and weighed on the lower surface, and the endless circulating body for container transport weighs the same type of container along a transfer direction. A container mounting part for container replacement to be mounted close to a possible state is provided corresponding to the type of container, and containers of the same type and corresponding to different weighing conveyors are sequentially mounted in a front-to-back relationship. Is characterized by That the container-type weight detector. 9. The container-type weight detecting device according to claim 5,6, 7, or 8, wherein the weighing conveyor moves a predetermined length range of the endless running strip from below. A container-type weight detecting device, wherein the weight is supported by a supporting base and the weight applied to the supporting base is detected. 10. The container-type weight detecting device according to claim 1, wherein the endless circling body is provided so as to be parallel to both sides of the article transfer path, and the endless circling body is provided on both sides. A large number of container carrying brackets are provided at a predetermined container mounting pitch, and the container carrying brackets are paired with face members inwardly facing the endless orbiting bodies on both sides, and penetrate both sides of each of the face members. A long hole is formed in the direction of travel of the container, and the container is supported by inserting a towed rod protruding from both sides of the front end into the long hole with a margin. Container type weight detector.