JP3942961B2 - Double run-up conveyor - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention is provided in the preceding stage of a multiple weighing device in which a plurality of weighing devices each having a conveying unit attached to a weighing unit are arranged, and a plurality of conveyors arranged in parallel to feed a measured object to each weighing device. It relates to a continuous running conveyor.
[0002]
[Prior art]
FIG. 4 is a plan view showing an example of a conventional multiple weighing device 100 and a multiple run-up conveyor 200 provided in the preceding stage. The multiple weighing device 100 is configured by arranging a plurality of weighing devices 101 each having a conveying unit attached to a weighing unit in a direction orthogonal to the conveying direction. In each weighing device 101, while the transport unit transports the object to be measured, the weighing unit measures the weight, and based on the result, processing such as sorting of the object to be measured is performed at a later stage (not shown).
[0003]
As shown in FIG. 4, a double run-up conveyor 200 is disposed in the preceding stage of the double weighing device 100. The multiple run-up conveyor 200 is configured by arranging a plurality of run-up conveyors 201 corresponding to each transport unit 101 of the multiple weighing device 100 in a direction orthogonal to the transport direction. In the conventional multiple run-up conveyor 200 shown in FIG. 4, a drive motor 202 is provided for each run-up conveyor 201. Further, as shown in FIG. 5, each auxiliary conveyor 201 is supported by two support mechanisms 203, and the overall height of the auxiliary conveyor 201 is adjusted by adjusting the support mechanism 203.
[0004]
The run-up conveyor 201 has a function of bringing the object to be measured into the transport unit of the weighing device 101. However, there is a drop between the run-up conveyor 201 and the transport unit of the weighing device 101, and the object to be measured is not transferred during the carry-in. When the weighing device 101 falls into the conveyance unit, the conveyance unit vibrates due to the impact of the drop, which hinders measurement of the weight. For this reason, it is necessary to feed the object to be measured as gently as possible without giving an impact to the transport unit. Specifically, for a light-weight object to be measured, for example, if the head is not set to 1 mm or less, harmful vibration may occur in the transport unit of the weighing device 101, which may hinder weight measurement. For this reason, it is necessary to adjust the height of each run-up conveyor 201 by adjusting the above-described support mechanism 203 so as to coincide with the height of the conveyance unit of the adjacent weighing device 101.
[0005]
[Problems to be solved by the invention]
The plurality of transport units of the multiple weighing device 100 described above have a subtle difference in height for each transport unit, and the heights of all the transport units are not the same. Accordingly, the heights of the plurality of run-up conveyors 201 that are in the preceding stage and send the objects to be measured to the respective conveyance units are not necessarily constant, and it is necessary to individually adjust the heights according to the respective conveyance units.
[0006]
However, as described above, according to the conventional double run-up conveyor 200, each run-up conveyor 201 is an independent mechanism driven by a separate motor 202, and two support mechanisms are provided for each run-up conveyor 201. 203, and by adjusting the support mechanism 203, the height is adjusted by raising and lowering each run-up conveyor 201 as a whole. This height adjustment is a delicate operation performed within a small allowable range in accordance with different heights for each transport unit as described above, and therefore, the two support mechanisms 203 are adjusted at a time. Is very cumbersome, and performing the work for each of the plurality of the run-up conveyors 201 has a problem in terms of work efficiency.
[0007]
Further, according to the conventional double-running conveyor 200, as shown in FIG. 5, the height adjustment mechanism 203 is on the front side of the apparatus (the side of the surface where a plurality of side-by-side running conveyors 201 are adjacent), There is a problem that the adjustment operation is difficult in a state in which the plurality of running conveyors 201 are arranged at a narrow interval.
[0008]
The present invention has been made in order to solve the above-described problems, and in a double-running conveyor having a plurality of running-up conveyors provided in the preceding stage of the multiple weighing device, the height of each of the running conveyors is adjusted. The purpose is to make it easy to do.
[0009]
[Means for Solving the Problems]
The multiple run-up conveyor 1 according to claim 1 includes a multiple weighing device 2 in which a plurality of weighing devices 3 that weigh the object to be measured while being conveyed in a predetermined direction are arranged side by side in a direction intersecting the predetermined direction. A device that is provided in the preceding stage and feeds an object to be measured to each weighing device 3, and includes a common motor 12 and a common drive shaft 11 driven by the common motor 12, and the common A plurality of running conveyors 10 are provided on the drive shaft 11. The plurality of run-up conveyors 10 include a plurality of drive rollers 13 attached to the drive shaft 11, a plurality of driven rollers 15 provided independently for each drive roller 13, and the corresponding drive rollers 13 and a plurality of belts 16 wound around the driven roller 15, and the driven roller 15 side is movable about the drive shaft 11. A height adjusting means 22 for adjusting the height on the driven roller 15 side about the drive shaft is provided for each of the running conveyors 10 for each of the running conveyors 10. In the double run-up conveyor 1 described in claim 1, the height adjusting means 22 is provided for each of the run-up conveyors 10 and a support plate 23 provided for each of the run-up conveyors 10. And an adjustment member 25 that adjusts the height of the driven roller 15 around the drive shaft 11 for each of the run-up conveyors 10 by performing an adjustment operation from above .
[0011]
The double run-up conveyor 1 according to claim 2 is the double run-up conveyor of claim 1 , wherein the support plate 23 is formed with a through hole 24, and contacts the lower surface of the support plate 23. An operation portion 26 is formed on the upper end surface of the adjustment member 25 to engage with a tool inserted from the through hole 24 of the support plate 23.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of the present invention will be described with reference to FIGS. The multiple run-up conveyor 1 of this example is a means that is provided in the front stage of the multiple continuous weighing device 2 and sends an object to be measured to each weighing device 3 of the multiple continuous weighing device 2.
[0013]
As shown in FIGS. 1 and 2, the multiple weighing device 2 has a plurality of weighing devices 3. Each weighing device 3 includes a conveyance part 4 for an object to be measured and a weighing part 5 for supporting the same. The transport unit 4 is configured to move the belt 7 that is wound around the pair of rollers 6 and 6 by being circulated by the motor 8. The weighing unit 5 is wider than the belt 7 of the conveyance unit 4, and more than half of the conveyance unit 4 in the conveyance direction is arranged to protrude outward from the main body of the weighing unit 5. Then, as shown in FIG. 1, a part of the weighing unit 5, the plurality of weighing devices 3 are arranged so that every other protruding direction of the conveying unit 4 is reversed and in a staggered manner, As a result, the transport units 4 of the plurality of weighing devices 3 are configured to be closely arranged in the direction perpendicular to the transport direction at the same position in the transport direction. Thus, even when the scale width is larger than the conveyor width as in this example, space saving can be realized.
Although not shown in the figure, in the subsequent stage of the multiple weighing device 2, operations such as sorting of objects to be measured according to the measurement results are performed.
[0014]
Next, as shown in FIG. 1 and FIG. 2, a multiple run-up conveyor 1 provided with a plurality of run-up conveyors 10 for feeding an object to be measured to each of the weighing devices 3 is installed in the preceding stage of the multiple weighing device 2. ing.
This multiple run-up conveyor 1 uses one drive shaft 11 provided on a common frame in common. The drive shaft 11 is driven by one common motor 12. A plurality of drive rollers 13 are attached to the drive shaft 11 at a predetermined interval corresponding to the pitch of the transport unit 4 of the multiple weighing device 2. For each drive roller 13, one end of a pair of frame plates 14, 14 is attached to the drive shaft 11 with each drive roller 13 being sandwiched so that it can swing around the drive shaft 11. At the other end of the pair of frame plates 14, 14, driven rollers 15 are provided corresponding to the respective drive rollers 13. A belt 16 is wound around the corresponding driving roller 13 and driven roller 15. Thereby, the drive shaft 11 and the motor 12 are made common, and the some run-up conveyor 10 arranged in parallel along the drive shaft 11 direction corresponding to each conveyance part 4 of the multiple | quantitative weighing apparatus 2 is comprised.
[0015]
As shown in FIG. 3, a support bolt 20 as a support member protrudes on the side of the driven roller 15 of the frame plate 14 of each running conveyor 10. In addition, a receiving portion 21 having a groove is fixed to the base of the apparatus. And the run-up conveyor 10 is supported on the substantially horizontal state by engaging the support bolt 20 with the groove of the receiving portion 21, and is disposed on the base 30 of the apparatus. The support bolt 20 and the receiving portion 21 can be engaged and disengaged, and the support bolt 20 can be easily detached from the receiving portion 21 by lifting the side of the driven roller 15 of the running conveyor 10.
[0016]
As shown in FIG. 3, height adjusting means 22 for adjusting the height of the running conveyor 10 is provided on the side of the driven roller 15 of each running conveyor 10. In the height adjusting means 22, a support plate 23 is fixed on the driven roller 15 side of the frame plate 14 of each running conveyor 10. A through hole 24 is formed in the support plate 23. An adjustment bolt 25 as an adjustment member is screwed into a screw hole of the base 30 at a predetermined position of the base 30 of the apparatus, and is prevented from loosening by a fixing nut 27 as a fixing means. The adjustment bolt 25 has an engaging groove 26 as an operation portion formed on the head thereof. Since the head is larger than the through hole 24 of the support plate 23, the support plate 23 stops in a state where it abuts on the head of the adjustment bolt 25, and the running conveyor 10 can be supported by the adjustment bolt 25. That is, the head of the adjustment bolt 25 does not penetrate the through hole 24 of the support plate 23.
[0017]
In a state where the lower surface of the support plate 23 is abutted on the head of the adjustment bolt 25, the engagement groove 26 of the head of the adjustment bolt 25 can be visually recognized from the through hole 24 of the support plate 23. Therefore, the adjusting bolt 25 can be rotated by inserting a tool such as a screwdriver from the through hole 24 of the support plate 23 and engaging with the engaging groove 26. By rotating the adjusting bolt 25, the protruding length of the adjusting bolt 25 from the base body 30 is changed, and the driven roller 15 side of the running conveyor 10 is lifted or lowered via the support plate 23, whereby the running conveyor 25 It is possible to adjust the height of the ten terminal portions (that is, the end portion on the driven roller 15 side). Therefore, the end portion of the run-up conveyor 10 can be set to a height that is individually adapted to the height of the transport unit 4 of the adjacent multiple weighing device 2, and when the object to be measured is fed into the weighing device 3. It is possible not to give an impact to the weighing device 3. In other words, it is possible to avoid carrying (dropping) the object to be measured accompanied by an impact that affects the accuracy of weighing.
[0018]
This height adjustment operation can be performed from the upper side of the double run-up conveyor 1, and it is not necessary to perform from the side of the apparatus as in the prior art, so that the operation is easy. Further, the height adjustment operation can be performed individually for each of the running conveyors 10 in accordance with the height of the actual conveying unit 4 of the weighing device 3 that is facing each other.
[0019]
As described above, in the double run-up conveyor 1 of this example, the drive roller 13 of the plurality of run-up conveyors 10 is attached to the common drive shaft 11, and the driven roller 15 side can be easily detached from the receiving portion 21. It is the structure supported by the state. Accordingly, if the drive shaft 11 and the drive system such as the motor 12 can be easily detached from the drive base 11 (specifically, the bearing portion) and the motor 12, the drive shaft 11 and the plurality of auxiliary conveyors 10 are provided as necessary. It can be removed from the device and replaced with another one. For example, when the multiple weighing device 2 arranged in the subsequent stage is replaced with one having a different number or pitch of the conveyance units 4, the multiple running conveyor 1 is replaced with another multiple weighing device adapted to the new multiple weighing device 2. It can be easily replaced with the run-up conveyor 1. That is, the drive shaft 11 can be replaced with another multiple-running conveyor 1 having a configuration corresponding to the new multiple weighing device 2 in terms of the number and pitch of the running conveyors 10. Of course, it is necessary to prepare the other multiple run-up conveyors in advance.
[0020]
【The invention's effect】
According to the present invention, in the double run-up conveyor provided in the front stage of the double weighing device, a plurality of run-up conveyors are provided on a common motor and a common drive shaft, and each run-up conveyor is provided with a height adjusting means. There is an effect that the height of each run-up conveyor can be easily adjusted individually.
[Brief description of the drawings]
BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a plan view of a double continuous running conveyor which is an example of an embodiment of the present invention.
FIG. 2 is a front view of a double continuous running conveyor which is an example of an embodiment of the present invention.
FIG. 3A is an enlarged front view of a driven roller side of a double-running conveyor that is an example of an embodiment of the present invention, and FIG. 3B is a perspective view of a height adjusting means of the double-running conveyor. It is.
FIG. 4 is a plan view of a conventional multiple weighing device.
FIG. 5 is a front view of a conventional multiple weighing device.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Duplex run-up conveyor, 2 ... Duplex weighing apparatus, 3 ... Weighing apparatus, 10 ... Run-up conveyor, 11 ... Drive shaft, 12 ... Motor, 13 ... Drive roller, 15 ... Drive pulley, 20 ... Support as support member Bolts, 22 ... height adjusting means, 23 ... supporting plate, 24 ... through holes, 25 ... adjusting bolts as adjusting members, 26 ... engaging grooves as operating portions.

Claims (2)

A plurality of weighing devices (3) for weighing the objects to be measured while being conveyed in a predetermined direction are provided in front of a multiple weighing device (2) arranged in a direction crossing the predetermined direction ;
A common motor (12);
A common drive shaft (11) driven by the common motor;
A plurality of driving rollers (13) attached to the common driving shaft, a plurality of driven rollers (15) provided independently for each driving roller, and the corresponding driving rollers and driven rollers. A plurality of run-up conveyors (10) having a plurality of belts (16) wound around, the driven roller side being movable around the drive shaft;
A height adjusting means (22) provided for each of the run-up conveyors for adjusting the height of the driven roller around the drive shaft for each run-up conveyor ;
In the double run-up conveyor (1) for feeding the object to be measured to each weighing device,
The height adjusting means (22) is provided at a predetermined position with the support plate (23) provided for each of the run-up conveyors (10), and is in contact with each of the support plates, and is adjusted from above. And an adjusting member (25) for adjusting the height of the driven roller around the drive shaft for each of the running conveyors. A through hole (24) is formed in the support plate (23), and a tool inserted from the through hole of the support plate is engaged with the upper end surface of the adjustment member (25) that contacts the lower surface of the support plate. double continuous run-up conveyor according to claim 1, wherein the operation section for engagement (26) is formed.

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