JPH03211112A - Log feeding device - Google Patents

Abstract

PURPOSE:To enable the aligned conveyance of logs one by one in good order by providing an eliminating endless drive body at the intermediate part of a conveyance operated track in such a way that the upper part thereof is protruded upward from the track in a log feeding device used in a sawmill or the like. CONSTITUTION:A slasher chain is driven to feed logs 3 from a stock deck 3. The logs 3 are pushed out and conveyed upward by a supporting attachment 17. When plural logs are fed simultaneously, the lower face of the upper log A1 is brought into contact with the protruding piece 21 of an eliminating endless body 20 at the place where the eliminating endless body travelling in the opposite direction to the log A feeding direction is located, so that the log A1 is rotated clockwise. The lower log A2 is therefore rotated counterclockwise and provided with force to go over the supporting attachment 17. The log A2 thereby falls going over the attachment 17 and thus separated one by one.

Description

[Detailed Description of the Invention] (Object of the Invention) <Industrial Application Field> The present invention relates to a device for conveying logs in a sawmill or the like, and in particular, the present invention relates to a device for conveying logs in a sawmill etc. The present invention relates to a log material supplying device as described above.

<Background of the invention> For example, logs are transported from a stockyard to an appropriate processing device,
For example, it is carried out to be transferred to a sawing device or a bark removing device, but during this transfer, each tree must be fed in an orderly manner to the subsequent processing device. For this reason, conventionally, as shown in FIG. 7, a slasher chain 11' equipped with a support attachment 7' for the log material A is provided.
Using the supply device 1' for log material A, which is arranged so that its conveying action track rises in the conveying direction, the log materials A are supported one by one by this support attachment 17', and then the next step is carried out. We are trying to transport it to. However, in reality, when the logs A are supplied to this feeding device, a plurality of logs A are roughly dropped at once, and the support attachment takes them out one by one and transports them. However, in reality, if space allowed, two or more pieces would be supported by a single support attachment and transported and supplied at once, which could cause problems in subsequent processes.

<Technical matters attempted to be developed> The present invention was made in view of the above background, and
Initially, even if two or more logs are supported by the conveyance attachment, the other logs are shaken out so that only one log is conveyed, and eventually each log is This is an attempt to develop a new log supply device that can supply logs to the next process in an orderly manner.

(Structure of the Invention) Means for Achieving the Object The log supply device of the present invention comprises an endless conveyor body equipped with a log support attachment, which is disposed such that its conveyance track ascends in the conveyance direction. The apparatus is characterized in that one or more driven endless exclusion bodies are provided in the middle of the conveyance track so that their upper parts protrude above the conveyance track. , thereby attempting to achieve the above objective.

<Operation of the invention> In the present invention, for the log material that is supported and supplied by the support attachment in the endless transport body,
The log is rotated by contacting the lower surface of the log with the driven endless expelling body. Due to this rotation, even if multiple logs are supported by one support attachment and transported, the rotation of the logs will be transmitted to the subsequent logs that are being transported at the same time, and they will be The logs begin to float up from the ground, and eventually climb over the bearing attachments and are swung back.Finally, each bearing attachment supports one log, which is then fed to the next process. Ru.

<Examples> The present invention will be specifically described below based on illustrated examples. Reference numeral 1 denotes a log supply device according to the present invention, which includes, for example, a stock deck 3 for accumulating a large number of logs A, and a stock deck 3 for feeding the logs A to the next process, such as a sawing device or a bark removing device. and the transport conveyor 4. Of course, this log material supply device I may be in a state in which the stock deck 3 or the like is not attached, and the log material A is directly received by, for example, a forklift. The log supply device 1 will be described below. Reference numeral 10 is a frame, and above the frame 10 is provided a slasher chain 11 which is an endless conveying body. Specifically, as an example, the slasher chain 1 is constituted by two chains arranged opposite each other on the left and right sides. The upper surface of the running track of this slasher chain 11 serves as a track for transporting logs, and this transport track is set in an inclined state so as to rise in the transport direction. The drive is performed by a drive sprocket 13 provided on a drive shaft 12 provided on the upper end side of the slasher chain 11, and a drive motor for the slasher chain 11 is separately connected to a driven sprocket 14 for this drive shaft 12. The rotation from M( is transmitted by the drive chain 16.

Further, the slasher chain 11 is provided with weir plate-shaped support attachments 17 at regular intervals,
The support attachment 17 is the left and right slasher chain 1
1 are connected together. As a characteristic feature of the present invention, such a slasher chain 11 is further provided with an exclusion endless body 20 that projects somewhat from its conveying track surface. This one - for example chain 21
This chain 21 is provided with a plurality of protrusions 21A in the form of attachments, and this chain 21 is attached to the slasher chain 11.
A pair of left and right panels are provided so that they are placed on both sides of the board. The embodiment shown in Fig. 1.2.4.6 is based on this chain 2.
1 is stretched so as to draw an elliptical orbit between the drive sprocket 22A and the turn sprocket 22B, and is provided so that the upper surface of the running orbit projects above the slasher chain 11, which is the endless transport body. It will be done. A guide plate 23 is provided on the lower surface of the upper running track of the chain 21, which is the endless body 20, so that it can sufficiently support the load even when it is applied. This chain 21 is driven by a drive motor M of the slasher chain 11.
2 is provided separately and independently, the drive chain 24 is configured to be transmitted from this one to the drive shaft 22a to the drive sprocket 22.

Of course, when driving the chain 21, the slasher chain 1 can be driven without using a separate drive motor M2.
1 rotation may be used. That is, as shown in FIG. 4, for example, the end of the driven shaft 15, which is the shaft of the driven sprocket, of the slasher chain 11 is extended, and a relay gear 25 is provided there.
A reverse gear 26 is provided on the 2a side so that the drive shaft 22a is rotated in a direction opposite to the direction in which the slasher chain 11, which is an endless transporting body, is driven.

When using the rotation of the slasher chain 11 in this way, the reversing mechanism for running in the opposite direction is not only a mechanism using gears, but also a reversing mechanism by, for example, suspending the chain or the like in a so-called sagging state. It is also possible to use a mechanism that performs the following steps. Furthermore, this exclusion endless body 20 does not necessarily need to use a chain 21, for example, as shown in FIG.
As shown in a), the protruding piece 27 is attached to the tightened belt 27.
A may be provided. Furthermore, the suspension method of the endless exclusion body 20 is simply the drive sprockets 22 at both ends.
Not only the elliptical orbit stretched between A and the turn sprocket 22B, but also the intermediate portion is actively guided downward by the guide sprocket 28 as shown in FIG. 5(b).
A drive sprocket 22A and a turn sprocket 22B are provided on the upper surface of the conveyor track of the slasher chain 11, respectively.
Of course, it may be configured so that the part protrudes. Further, such endless exclusion bodies 20 are not only provided in one unit arranged oppositely on the left and right, but also two units are provided in series per one slasher chain 11 as shown in FIG. As shown in (b), the excluded endless body 2
It is of course possible to configure a plurality of units of the slasher chain 11 equipped with o in series.

In addition, to briefly explain the stock deck 3 and the conveyor 4, which are peripheral equipment provided in connection with such a log supply device 1, the stock deck 3 is configured to run on the top surface of the stock deck frame 30. A feed chain 31 is provided, and a chute 32 is provided at the front end of the feed chain 31 to connect it to the log supply device 1.
will be established. Of course, this feed chain 31 may be always provided on the upper surface of the stock deck frame 30, or the unit of the feed chain 31 may be configured to be able to move up and down, so that the logs A accumulated on the stock deck 3 can be moved as needed. Depending on the situation, it may also be possible to transport the container in a floating state. The conveyor 4 faces near the upper end of the log supply device 1, and is extended to the next processing step for the logs. That is, a conveyor chain 41 for supporting and conveying the log material A runs on the upper surface of the conveyor frame 40, and a trough 42 for guiding the log material A is provided on the side of the conveyor chain 41.

The concrete structure of the log supply device according to the present invention is as described above, and operates as follows to supply the logs A one by one in an orderly manner. First, log supply device 1
When the logs A are sequentially supplied from the stock deck 3 while the slasher chain 11 is being driven and running, the logs are pushed out by the support attachment 17 of the slasher chain 11 and move upward. At this time, log material A from stock deck 3
Since the supply of is reduced by a fairly rough operation, −
Not necessarily one log A is loaded per base bearing attachment 17, but sometimes two or more logs are fed at the same time. In such a situation, for example, two logs A (if it is necessary to distinguish between multiple logs, indicate the upper log A).
1, the lower log is indicated as A2), as shown in FIG. 7(a), the protruding piece 2LA of the endless exclusion body 20 first comes into contact with the lower surface of the log A1 on the way, as shown in FIG. 7(a). At the contact position, the endless expelling body 20 is running in a direction opposite to the supply direction of the log material, causing the upper log material A1 to rotate clockwise in the figure. The rotation of the upper log A1 is transmitted to the lower log A2 in contact with it, causing it to rotate in the opposite direction, that is, counterclockwise. This rotation is a rotation that causes the lower log material A2 to overcome the support attachment 17 that supports it, and as a result, the lower log material A2 overcomes the support attachment 17 and falls downward, and the next support It is conveyed again by the attachment 17, or if another log A is already present there, it stays above it, or it climbs over it and falls downwards, and is then pushed up by the supporting attachment 17 that comes later. I'll wait for that. In addition, in the case of two or more logs, as shown in FIG. 7(b), the rotation direction of the logs A1 to A3 is
The running direction is set in the order of 0, reverse, forward, and reverse, and the rotation in any direction that is easier to lift is 1. The log material A that has been raised is sequentially dropped downward.

In addition, when a large number of logs A are being transported at once, there is a case where a plurality of endless exclusion bodies 20 are provided as in the embodiment shown in FIG. 6, or Further reliable removal is achieved by an embodiment in which the slasher chain 11 with the endless removal bodies 20 is arranged in multiple stages in series. In addition, if only one log material A is fed to the position where the exclusion endless body 20 is provided, the direction of rotation thereof is not in the direction of getting over the support attachment 17, so - in the case of only one log material A. There is no fear that this will be excluded.

(Effects of the Invention) As described above, the present invention applies rotation to the transported log material A by operating the expelling endless body 20 in the log material supply device 1, and by the rotation, one support attachment 17 When multiple logs A are being transported per unit, the surplus logs A can be reliably removed.
Ultimately, accurate transfer of each piece can be achieved.

2

[Brief explanation of drawings]

FIG. 1 is a perspective view showing the log supply device of the present invention, and FIG.
3 is a plan view of the same as above, FIG. 4 is a perspective view showing another driving method of the endless exclusion body, FIG. 5 is a side view of another embodiment of the endless exclusion body, and FIG. The figures are skeletal side views showing various embodiments in which a plurality of endless exclusion bodies are provided, and FIG. 7 is an explanatory diagram showing a state in which surplus logs are removed when multiple logs are fed. FIG. 8 is a skeletal side view showing problems with the conventional feeding device. 1; 3; 4; 10; 11; 12; 13; 14; Log supply device Stock deck Conveyor frame Slasher chain Drive shaft Drive sprocket Driven sprocket 15; Driven shaft 16; Drive chain 17; Support attachment 20; Exclusion endless Body 21; Chain 21A; Projection piece 22A; Drive sprocket 22B; Turn sprocket 22a; Drive shaft 23; Guide plate 24; Drive chain 25; Relay gear 26; Reverse gear 27; Cocked belt 27A; Projection piece 28; Guide sprocket 30 ;Stock deck frame 31;Feeding chain 32;Chute 40;Conveyor frame 41;Conveyor chain 42;Trough A, A, ,A2,A,, Log material Ml/M2, Drive motor

Claims (1)

[Claims] In a device in which an endless conveying body equipped with a support attachment for logs is arranged such that its conveying track rises in the conveying direction, one or more driven units are provided in the middle of the conveying track. A log supply device characterized in that an endless exclusion body is provided such that its upper portion projects upwardly from a conveyance track.