JPS6139116B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method and device for weighing and sorting during transportation, and in particular to a method and device for weighing and sorting objects during transportation, and in particular, weighing and sorting objects between a pair of opposing locking pieces that are pivotably connected on the outside. Weighing rails that are transported while being supported in a sandwiching manner, and during this transportation, support the locking pieces that support the weighing object from below to suppress its pivoting and prevent the weighing object from falling; It is lowered at a predetermined position and weighed with a scale, and the weighing rail is raised again and transferred to the sorting section. Based on the weighing results, the objects to be weighed whose results are inappropriate are classified as The objects to be weighed are transferred by opening the distance between the locking pieces and allowing them to fall under their own weight and being removed from the transfer path, and by supporting the objects with appropriate results on the locking pieces and sending them to the next process. There is no need to take the objects out of the route into the weighing process, weigh and sort them, and then return only the proper objects to be weighed back into the transfer route.In addition, accurate weighing and reliable sorting are all performed during the series of transfer processes. The present invention relates to a method and apparatus for weighing and sorting during transport that can be performed automatically.

Conventionally, there is a method of weighing and detecting the weight of an object while it is being transferred from one process to the next process, continuing to transfer items with appropriate weight results, and picking out and weighing and sorting items with inappropriate results. A typical example of this is a method in which an operator takes out objects from the transfer route, weighs them, and returns only objects of appropriate weight to the transfer process for weighing and sorting. However, in this case, all the workers involved in the weighing and sorting work, such as taking out the objects and weighing them, determining whether the weight is too much or too little based on the weighing results, and returning only the appropriate objects during transportation, are required. It was necessary to do it. Therefore, not only does this place an excessive burden on workers, it is also uneconomical as many workers are required to weigh and sort a large amount of objects. Moreover, it was difficult to weigh and sort them quickly.

This inventor has come up with this invention in view of such problems.

In other words, an object of the present invention is to measure the weight of objects to be weighed during transport and eliminate objects whose weighing results are inappropriate, while at the same time transporting only suitable objects to the next process. It is another object of the present invention to provide a method and device for weighing and sorting objects, and a further object of the present invention is to provide a method and device for weighing and sorting objects.A further object of the present invention is to provide a method and device for weighing and sorting objects. It is an object of the present invention to provide a method and apparatus for weighing and sorting during transportation, which enables accurate and rapid sorting.

Therefore, in this application, the object to be measured 2 is supported so as to be sandwiched between a pair of opposing locking pieces 1 which are pivotally connected on the outside and configured to be freely pivotable, and the object to be measured 2 is supported in this state. This transfer is performed by locking piece 1.
The lower surface of the locking piece 1 is guided by the weighing rail 3 so as to prevent the object 2 to be weighed held between the two locking pieces 1 from falling when the locking pieces 1 pivot. When the object to be measured 2 reaches the weighing section 4, the measuring rail 3 is lowered and both locking pieces 1 are pivoted downward to open the gap between the two locking pieces 1 and the object to be measured is The object 2 is placed on the scale 5, the object 2 to be weighed is weighed, and then the weighing rail 3 is raised and the object 2 is again supported between the locking pieces 1 and moved to the sorting section. 6, and at this point, the object to be measured 2 for which the weighing result is inappropriate is removed by lowering the entire or part of the weighing rail 3 to open the gap between both locking pieces 1, and removing the inappropriate object to be measured. Provided as a specified invention is a method for weighing and sorting during transportation, which is characterized in that objects 2 to be weighed are dropped by their own weight, and objects 2 to be measured whose weighing results are appropriate are supported between locking pieces 1 and sent to the next process. At the same time, a conveyor is constructed of a plurality of consecutive locking pieces 1 in the direction of movement, which are pivotably connected on the outside and are configured to be freely pivotable, and for supporting the object to be measured 2 between them. 7, a weighing rail 3 that supports and guides the locking piece 1 while suppressing its pivoting, and that moves up and down to allow the locking piece 1 to pivot downward; and the conveyor. A measuring device 5 facing below the conveyor 7 at the measuring section 4 on the traveling path of the conveyor 7
Then, by lowering all or part of the weighing rail 3, the pair of locking pieces 1 are pivoted downward, opening the distance between the two locking pieces 1, and lifting the supported object 2. A discharge device 8 for dropping, which is connected to the scale 5 and the discharge device 8,
Provided as a combined invention is a device for weighing and sorting during transfer, which is characterized by comprising a command circuit for activating the ejecting device 8 when an inappropriate object to be weighed 2 detected by the object reaches the ejecting device 8. do.

Embodiments of the present invention will be described below with reference to the attached drawings.

1 to 8 show an embodiment of the apparatus according to the present invention. The object to be measured 2 is supported so as to be sandwiched between a pair of opposing locking pieces 1, 1 which are pivotally connected on the outside and configured to be freely pivotable, and the object to be measured is transferred in this state. As shown in detail in FIGS. 5 and 6, the locking piece 1 is fixed to one piece of the hinge 9 with the pivot axis of the hinge 9 on the outside, and the other pieces are arranged in a direction perpendicular to the direction of movement. It is fixed to the slats 10 that have been installed. Therefore, the locking piece 1 is configured to be pivotable about the axis of the hinge 9, one piece of which is fixed to the slat 10. The locking pieces 1 are opposed within the slat 10. The slat 10 has a rectangular frame in plan view, and within the frame are provided locking pieces 1 arranged in parallel in the direction of movement and forming required pairs of locking pieces 1. Although not shown in the figure, this embodiment shows a device having eight pairs of locking pieces 1 facing each other in a parallel direction. Slut 10 is
A pair of conveyors 7 spanned from front to back at both ends in the direction of travel via brackets 11 and 12.
is connected to. Although this conveyor 7 is composed of a chain conveyor, it may be of other types.
A large number of locking pieces 1 forming the pairs are provided in the traveling direction.

The locking pieces 1 are supported from below by the weighing rail 3, and the intervals between the locking pieces 1 are widened to prevent the object to be measured 2 held therebetween from falling.

The weighing rail 3 has a long plate shape as shown in FIGS. 1, 3, 5, and 6, and has its longitudinal direction oriented in the same direction as the traveling direction of the conveyor 7. It is disposed below the conveyor 7 so that one end surface in the width direction supports the lower surface of the locking piece 1 from below. That is, both outer sides of the lower surface of the locking piece 1, which has a pivot in a direction perpendicular to the traveling direction of the conveyor 7, are supported by two measuring rails 3. A support section 13 is formed by a pair of opposing locking pieces 1 and two weighing rails 3, and the support section 13 supports and transports the object 2 to be weighed. That is, a large number of support parts 13 are formed in the conveyor 7 in its traveling direction and in its parallel direction. Furthermore, the large number of measuring rails 3 are
As shown in Fig. 3, each adjacent weighing rail 3
They are connected to each other by a connecting rod 14 so that they can pivot together. Specifically, one end of each of the plurality of L-shaped operation plates 15 is fitted to the connecting rod 14 that connects and fixes the weighing rail 3, and the other end intersects the direction of movement of the conveyor 7. The conveyor 7 is fixed to a beam 16 which is pivotably spanned over substantially the entire length of the conveyor 7 in the width direction. beam 16
As shown in FIG. 7, guides 17 for raising and lowering are provided at both ends thereof, and the tip of a rod of a cylinder 18 for raising and lowering is fixed to the lower part of the middle.
This lifting cylinder 18 has a cylinder body pivotally attached to a frame 23 that holds the conveyor 7. As shown in detail in FIG. 7, the guide 17 is constructed by fixing the base of the arm 19, which is U-shaped in plan, to the end of the beam 16 with a bolt 20, and attaching a positioning step to both opposing protrusions. A guide roller 22 having a guide roller 21 is rotatably mounted on the inside facing each other. On the other hand, a frame 23 that holds the conveyor 7
A guide plate 24 that engages with the stepped portion 21 of the guide roller 22 and guides the vertical movement of the beam 16 is fixedly installed on the guide plate 24 . Therefore, the beam 16 is
Guided by the guide 17, it is raised and lowered by the cylinder 18, and the measuring rail 3 is also raised and lowered accordingly.

The weighing device 5 is arranged so as to face below the weighing rail 3 on the traveling path of the conveyor 7,
A measuring section 4 is formed here. A weighing object 2 guided by the weighing rail and supported by the locking piece 1
When the weighing object 2 reaches the weighing section 4, the weighing rail 3 is lowered and both locking pieces 1 are pivoted downward, thereby opening a gap between the locking pieces 1 and moving the object 2 to be measured into the weighing device 5. The object to be measured 2 is then weighed.

Next, the weighing rail 3 is raised and the object to be weighed 2 is again supported between the two locking pieces 1 while the sorting section 6
advance until. The sorting section 6 lowers all or part of the weighing rail 3 to pivot the pair of locking pieces 1 downward, thereby opening a gap between the two locking pieces 1, and removing the supported weighing object. It is formed by a discharge device 8 that drops the object 2. The ejection device 8 in the embodiment shown in FIGS. 1 to 8 is of a type in which a part of the metering rail 3 is lowered. Specifically, as shown in FIG. 1, the discharge device 8 is composed of a sorting rail 25 and a sorting cylinder 41 that operates the sorting rail 25.
The sorting rail 25 has three rails in the direction of movement of the conveyor 7.
The measuring rail 3 is constructed of a rail member located in the middle of a measuring rail 3 which is constructed by connecting two rail members. As shown in FIG. 8, the sorting rail 25 is rotatable about a pivot 26 provided at one end, and is connected to the sorting cylinder 41 via an operating rod 42 at the other end. This sorting cylinder 4
1 is pivotably fixed to a bracket 43 fixed to the frame 23, and as shown in FIG.
Each of them is provided for each transfer route, and each can be operated arbitrarily according to individual operation commands.

If the object to be weighed 2 is unsuitable due to insufficient weight as a result of the weighing, the corresponding discharge device 8 is activated to lower the sorting rail 25 and widen the gap between the two locking pieces 1. Applicable inappropriate measurement object 2
Only the material is allowed to fall under its own weight and discharged from the transfer route. On the other hand, the measurement target 2 for which the measurement result is appropriate
In this case, the sorting rail 25 is supported between the locking pieces 1 without being lowered and sent to the next process.

This sorting action is carried out by a command circuit connected to the measuring device 5 and the ejecting device 8. That is,
This command circuit allows the measuring instrument 5 to control each weighing object 2.
When an inappropriate weighing object reaches the discharge device 8 by detecting an individual weighing object 2 that is insufficient in weight, only the discharge device 8 corresponding to the weighing object is operated. . The objects 2 to be measured whose measurement results are appropriate are transferred to the next process while being supported by the respective locking pieces 1, while the objects 2 to be measured which are inappropriate are discharged from the transfer path.

FIG. 2 is a cross-sectional view taken along the line 2-2 in FIG.
This shows that. This transfer mechanism 27 has substantially the same structure as the elevating mechanism for the weighing rail 3 shown in FIG. A transfer beam 28 is pivotably provided. The transfer beam 28 is provided with transfer guides 29 for raising and lowering at both ends thereof, and a transfer cylinder 30 which is movable in the vertical direction and has a tip of a piston rod fixed thereto is disposed at the middle portion in the width direction. The transfer guide 29 has the same structure as the guide 17, and has bases of arms 31 each having a U-shape in plan fixed to both ends of the transfer beam 28 in the width direction with bolts 32, and two opposing protrusions. A guide roller 34 having a step portion 33 for positioning is opposed to the inside and pivotally mounted to be freely rotatable. Both guide rollers 34 are engaged with a transfer guide plate 35 attached in the vertical direction of the frame 23 holding the conveyor 7.
The transfer beam 28 is guided by a transfer guide 29 and moved up and down by a transfer cylinder 30, and pushes up the object to be weighed 2 into the conveyor 7 by a pressing portion 36 protruding from the upper surface. As a result, the tip of the object to be measured 2 is exposed above the locking piece 1 by pivoting the locking piece 1 upward. Next, when the transfer beam 28 descends, the neck formed at the upper end of the object to be weighed 2 engages with the locking piece 1 and is supported, and the object to be weighed 2 is transferred onto the weighing rail 3 in this posture. Ru. In addition, 37 in the figure is a transportation rail,
Although it is continuous with the measuring rail 3, it is fixed to the frame 23.

After the content filling process, the object to be measured 2 is
is transferred to a transfer position by a supply conveyor 38. The supply conveyor 38 and the conveyor 7 are connected via a power transmission member 39 such as a chain, and are configured to move intermittently in synchronization. Next, the transfer mechanism 27
The object to be weighed 2 is pushed up and transferred into the conveyor 7, and the object to be weighed 2 is supported by the locking piece 1. Then, while supporting the object 2 with the locking piece 1, the object 2 to be measured is transported to the weighing section 4 provided in the weighing rail 3 while sliding on the transport rail 37. Next, the weighing rail 3 is lowered and the weight of the object 2 to be weighed is measured using the scale 5. Then,
The weighing rail 3 is raised and the object 2 to be weighed is again supported by the locking piece 1 and transferred to the sorting section 6. Here, the weighing object 2 for which the weighing result is inappropriate is communicated with the measuring instrument 5, and the discharging device 8 receives the detection command from the measuring instrument 5.
is activated, the sorting rail 25 is lowered to open the interval between the locking pieces 1, and the object to be weighed 2 is dropped by its own weight and discharged from the transfer path. On the other hand, the object to be measured 2 whose measurement result is appropriate is supported by the locking piece 1 and transferred to the next process. Therefore, a large number of objects can be weighed and sorted accurately and quickly.

FIG. 9 shows another embodiment of the discharge device 8, in which the entire weighing rail 3 is lowered to discharge objects to be weighed whose weighing results are inappropriate from the transfer path. Specifically, when the scale 5 detects an object 2 to be weighed that is insufficient in weight, it lowers the solenoid valve 40 installed in the sorting section 6. When the object to be weighed 2 is transferred to the sorting section and the weighing rail 3 is lowered there, the object to be weighed 2 whose weighing result is appropriate is supported by the solenoid valve 40 in a fixed position and moved to the locking piece 1. The object to be measured 2, which is supported but has an inappropriate measurement result, is moved along the transfer path by pivoting the locking piece 1 by its own weight because the solenoid valve 40 to be supported is lowered from the normal position. will fall and be eliminated. On the other hand, a suitable object to be measured 2 is transferred to the next process while being supported by the locking piece 1.

In addition, although these embodiments allow ejection only when the weight is insufficient, it may also be possible to eject the object when the weight is excessive.

As described above, according to the present invention, the weight of the objects to be weighed is measured during transportation, the shortage is detected, the objects to be weighed with inappropriate weighing results are eliminated, and only the objects to be weighed that are suitable are sent to the next process. In addition to being able to
It is possible to provide a method and apparatus for weighing and sorting during transportation, which does not require human labor for weighing and sorting, greatly reduces costs, and allows accurate and rapid sorting of a large amount of objects to be weighed.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a front view, FIG. 2 is a sectional view taken along line 2-2 in FIG. 1, and FIG. 3 is a sectional view taken along line 3-3 in FIG. Figure 4 is a sectional view taken along line 4-4 in Figure 1, and Figure 5 is a sectional view taken along line 5-4 in Figure 1.
5-line enlarged sectional view, FIG. 6 is an enlarged plan view of the support part,
FIG. 7 is a view taken from arrow 7 in FIGS. 2 and 3, FIG. 8 is an explanatory diagram showing the operating state of the metering rail, and FIG. 9 is a front view showing another embodiment of the device according to the present invention. be. In the figure, 1 is a locking piece, 2 is an object to be measured, 3 is a measuring rail, 4 is a measuring section, 5 is a measuring device, 6 is a sorting section, 7 is a conveyor, and 8 is a discharge device.

Claims (1)

[Scope of Claims] 1. While supporting the object to be measured between a pair of opposing locking pieces which are pivotally connected on the outside and configured to be freely pivotable, the object to be measured is transferred in this state,
This transfer is performed by moving the lower surface of the locking piece to the weighing rail so that the space between the two locking pieces opens as the locking piece pivots, and the object to be weighed held between them is prevented from falling. When the object to be weighed reaches the weighing section, the measuring rail is lowered and both locking pieces are pivoted downward, thereby opening the gap between the two locking pieces and moving the object to be weighed. The object to be weighed is placed on the scale, and the object to be weighed is weighed.Then, the weighing rail is raised and the object to be weighed is again supported between both locking pieces and advanced to the sorting section, where the object is weighed. If the measurement result is inappropriate, lower the whole or part of the weighing rail to open the gap between the two locking pieces, and let the inappropriate measurement object fall under its own weight. A method for weighing and sorting during transport, characterized in that suitable objects to be weighed are supported between locking pieces and sent to the next process. 2. A conveyor consisting of a plurality of locking pieces that are pivotally connected on the outside and are configured to be freely pivotable, and are made up of a plurality of pairs of opposing locking pieces that are arranged in series in the traveling direction to sandwich and support the object to be measured between the conveyor and the conveyor. A metering rail that supports and guides the locking piece while suppressing its pivoting movement, and that moves up and down to allow the locking piece to pivot downward; By lowering all or part of the weighing instrument facing below the conveyor and the weighing rail, the pair of locking pieces are pivoted downward to widen the gap between both locking pieces, and the supported weighing a discharge device for dropping an object, and a command circuit connected to the measuring instrument and the discharge device, and for activating the discharge device when an inappropriate object to be weighed detected by the measuring instrument reaches the discharge device. A device for weighing and sorting during transportation, characterized by comprising: