JPH03211111A - Log feeding device - Google Patents

Abstract

PURPOSE:To feed logs one by one in good order to the following process by providing an eliminating rotor at the intermediate part of a conveyance operated track in such a way that the upper part thereof is protruded higher than the track in a log feeding device device used in a sawmill or the like. CONSTITUTION:When a slasher chain 11 is driven to feed logs A successively from a stock deck 3, the logs A are pushed out and moved upward by a supporting attachment 17. When plural logs are fed simultaneously, the upper log A1 is brought into contact with the irregular teeth 21 of an eliminating rotor 20. As the eliminating rotor 20 is rotated in the opposite direction to the log A feeding direction, the log A1 is rotted clockwise. The log A2 in contact with the log A1 is therefore rotated counterclockwise and provided with rotation to go over the attachment 17, resulting in a fall.

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, multiple logs A are dropped into the system 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 first aspect of the log supply device of the present invention is to provide an endless conveying body equipped with a log support attachment whose conveying action track ascends in the conveying direction. A device arranged as above, characterized in that one or more exclusion rotating bodies are provided in the middle of the conveying action track so that their upper parts protrude above the conveying track. It is.

Further, a second aspect of the log supply device according to the present invention is characterized in that, in addition to the above-mentioned requirements, the expulsion rotary body is driven.

feeding device.

In addition to the requirements of the first invention, a third aspect of the log supply device according to the present invention is characterized in that the expelling rotary body is provided in a semi-braked state.

These inventions attempt to achieve the above object.

<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,
This log material is rotated by the removal rotating body coming into contact with the lower surface thereof. 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 1 may be in a state in which it directly receives the log materials A fed therein by, for example, a forklift without being provided with a stock deck 3 or the like. 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 11 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 transporting track for the log material A, and this transporting track is set in an inclined state so as to rise in the transporting 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. Rotation from M1 is transmitted by 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 rotating body 20 that projects somewhat from its conveying track surface. This is, for example, a member having serrated concave and convex teeth 21 in the shape of a disk, and
A pair of drive shafts are provided on the left and right sides of the drive shaft 22 supported by the frame 10. The embodiment shown in FIGS. 1 to 3 is an embodiment in which the expelling rotary body 20 is actively driven, and rotation is transmitted from the drive motor M2 of the expelling rotary body 20 via the drive chain 23. Of course, it is not desirable for the exclusion rotating body 20 to be at least in a free state;
The vehicle may be actively driven or actively braked. In addition, this exclusion rotary body 20 is not only provided with one left and right set, but also, for example, as shown in FIG.
As shown in a), two units may be installed in series, or as shown in FIG.
A large number of them may be provided in series. Furthermore, the fourth
It goes without saying that a plurality of units of the slasher chain 11 equipped with the expelling rotating body 20 may be arranged in series as in the embodiment shown in FIG. 3(C). 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. Infeed chain 3
1 is provided, and a chute 32 is provided at the front end in the feeding direction to connect the log material supply device 1.

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. Further, the conveyor 4 faces near the upper end side of the log material supply device 1, and this conveyor 4 is for the log material A
It is extended to the next processing step. 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 1 according to the present invention is as described above, and operates as follows to feed the log material A.
Supply each bottle in an orderly manner. First, when the log material A is sequentially supplied from the stock deck 3 while the slasher chain 11 in the log supply device 1 is driven and running, the log material A is pushed out by the support attachment 17 in the slasher chain 11. while moving upward. At this time, since the supply of logs A from the stock deck 3 is carried out in a very rough manner, one log A is not necessarily loaded per base bearing attachment 17, but sometimes two or More pieces are sent at the same time. In such a state, for example, two logs A (if it is necessary to indicate multiple logs separately, the upper log is indicated as AI and the lower log is indicated as A2) are transported. As the log material A1 is being removed, the concave and convex teeth 21 of the expulsion rotating body 20 first come into contact with the lower surface of the log material A1 in the middle of the process, as shown in FIG.
At the contact position, the removal rotary body 20, which is driven to rotate in a direction opposite to the supply direction of the log material A, causes rotation in the clockwise direction in the figure.

The rotation of the upper log AI is transmitted to the lower log A2 in contact with it, causing it to rotate in the opposite direction, that is, counterclockwise in the figure. This rotation is caused by the support attachment 1 supporting the log material A2 below.
7, whereby the lower log material A2 overcomes the bearing attachment 17 and falls downward, and is conveyed again by the next bearing attachment 17, or is there already another log material there. If A exists, it either stays above it, or it climbs over it and falls downward, waiting to be pushed up by the support attachment 17 that comes later. In this case, it was possible to impart rotation to the log material A1 by actively driving the removal rotating body 20, but on the contrary, as shown in FIG. condition (by using a planar brake or the friction disc 50 as shown in the figure), and at the position where the log material A and the removal rotating body 20 are in contact, the log material A is rotated at a slower speed than the transport speed of the log material A. A similar effect can be achieved if In addition, in the case of two or more logs, the rotation directions of the logs A1 to AB are set in the order of opposite direction, forward direction, and opposite direction to the rotation direction of the exclusion rotary body 2o, as shown in FIG. 5(b). The log material A is rotated in the direction in which it is more likely to float, and then the log material A is sequentially dropped downward. In addition, when a large number of logs A are being transported at once, there may be an embodiment in which a plurality of exclusion rotary bodies 2o are provided as in the embodiment shown in FIG. 4, or Further reliable removal is achieved by an embodiment in which the slasher chain 11 equipped with the removal rotary body 20 is arranged in multiple stages in series. In addition, if only one log material A is fed to the position where the expulsion rotary body 20 is provided, the direction of rotation is not in the direction of getting over the support attachment 17. There is no possibility that this will be eliminated in the future.

(Effects of the Invention) As described above, the present invention applies rotation to the log material A to be conveyed by operating the exclusion rotary 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.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing the log supply device of the present invention, and FIG.
The figure is a side view of the same as the above, FIG. 3 is a plan view of the same as the above, and FIG.
Fig. 5 is an explanatory diagram showing how surplus logs are removed when a plurality of logs are fed in, and Fig. 6 is an explanatory diagram showing an embodiment in which the removal rotary body is given some braking action. Fig. 7 is a skeletal (1! 1 side view) showing the problems of the conventional feeding device. 2 1; Log feeding device 3; Stock deck 4; Conveyor 10; Frame 11; Drive shaft 13; Drive sprocket 14; Drive sprocket 16; Drive chain 17; Support attachment 20: Exclusion rotating body 21; Uneven teeth 22; Drive shaft 23; Drive chain 30; Stock deck frame 31; Feed chain 32; Chute 40 ; Conveyor frame 41; Conveyor chain 3 42; Trough 50; Frixicon disc A, At, A2.A,; Log material Ml, MZ; Drive motor (C7) 7th

Claims (3)

[Claims] (1) 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 units are installed in the middle of the conveying track. A log supply device, characterized in that an expulsion rotary body is provided such that its upper portion projects upwardly from a conveyance track. (2) The log supply device according to claim 1, wherein the removing rotary body is driven. (3) The log supply device according to claim 1, wherein the expelling rotary body is provided in a semi-braked state.