JPH08143143A - Material feeding device for processing bedding material - Google Patents

Abstract

PURPOSE: To provide a material feeding device for processing a bedding material which is constituted to prevent the occurrence of a drop owing to a fall and displacement in a position occasioned by a storage pressure and reliably grasp a processing material for conveyance. CONSTITUTION: A feed material stop plate 2 is disposed at the terminal end part of a storage conveyor 1 to effect the traverse feed of a processing material W. The processing material W is stored on a conveyor conveyance surface by the material feed stop plate 2. A grasping means 10 comprises a lower clamp piece operated upward and an upper clamp piece (a) operated downward. The last end of the storage processing material W is grasped by a clamp by means of a grasping means 10 and traversed to a next stage process. The material feed stop plate 2 is moved to a moving-aside position after grasping operation for the processing material W is effected.

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a material supply device for processing a base material which feeds a stored material to the next step. [0002] In the wooden construction method of frame,
Mainly composed of structural materials such as pillars, and building materials such as joists, rafters, and studs (also called stilts) are used to build houses.
For the former structural material, a good quality material is selected and used to form the main skeleton, but since the latter base material is the other part, it is manufactured using a material other than a graded material. In addition, this base material is characteristic in that the cross-sectional dimension is small in spite of its long length,
Therefore, a material having warp or distortion is often used. In recent years, the above-mentioned base material has been pre-cut by a processing machine and has been subjected to a constant-size cutting process or an angle cutting process. However, due to the warp and the like, the operating rate of the machine is lowered. It is often seen in the current situation. That is, in performing the constant-size cutting process, conventionally, the feeding device shown in FIG. 4 is provided in the previous step.
This device is for taking out the stored processed materials one by one and feeding them to the cutting process of the next stage, and the problems will be pointed out together with the operation thereof. The processed material W fed in on the upstream side of the storage conveyor 50 is laterally fed to the downstream side by the rotation of the conveyor 50, and the transportation is stopped by the material feeding stop plate 51 at the rear end. When the processed materials W are sequentially introduced on the upstream side, the succeeding materials come in contact with the rear of the preceding processed material and are stored side by side. When the processed materials are accumulated as a group in this way, the storage conveyor 50 is stopped, and the material feeding stop plate 51 and the mounting table 52 at the standby position are operated as follows. That is, the material feeding stop plate 51 is moved from the projecting position to the retracted position as shown in FIG. 5, and the mounting table 52 waiting below the conveyor conveying surface is moved backward while being raised. By doing so, the processing material W in the last row can be placed on the mounting table 52 and fed to the next step, for example, a table (not shown) of the cutting processing machine. When the succeeding work materials come into contact with the preceding work materials one after another, a storage pressure is generated between the work materials. This storage pressure acts toward the rear, that is, toward the downstream side when the material feeding stop plate 51 retracts. Therefore, in a material having a high center of gravity, there is a problem that the processed material falls over. is there. Further, the processed material has warp, distortion, etc. as described above. For this reason, there is a problem that it does not ride on the mounting table 52 well and falls during transfer. The present invention has been made by paying attention to the problems of the prior art pointed out above, and is for processing a base material which can always feed smoothly without fear of tipping or falling. It is intended to provide a material supply device of In order to achieve the object, a material supplying device for processing a base material according to the present invention has the following constitution. That is, the gist of the invention is to provide a work material gripping means that moves to a first position corresponding to the last work material and a second position corresponding to the feeding position to the next process. The gripping means is composed of a lower clamp piece that operates upward and an upper clamp piece that operates downward, and the feed stop plate is retracted after the work material is clamped by the gripping means. I have done so. The upper clamp piece is on the upper side, and the lower clamp piece is on the lower side of the conveying surface to stand by for gripping the workpiece. Therefore,
By closing both clamp pieces, the workpiece can be grasped in the vertical direction. This gripping action is
It is performed with the processed material stopped by the material feeding stop plate. When the material feeding stop plate is retracted after gripping, the stored pressure at this time is applied to the workpiece in the gripped state. Therefore, it does not fall or drop, and the feeding operation can be performed smoothly. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The following is a description of one embodiment of a material supplying device for processing a base material according to the present invention. FIG. 1 is an explanatory diagram showing a schematic configuration of a base material processing system equipped with this device. FIG. 2 is a side view of the same. In the figure, reference numeral 1 is a storage conveyor operator for the work material W disposed on the front side, and the work material W is loaded while standing on the upstream side of the storage conveyor 1. The storage conveyor 1 rotates at a low speed and laterally feeds the processed material W to the downstream side in the rear. Reference numeral 2 denotes a material feeding stop plate arranged at the end of the storage conveyor 1. This material feeding stop plate 2 is operated by a pneumatic cylinder 3 so as to move in and out. Set this in place. Reference numeral 4 is a stationary first transverse feed conveyor which is arranged on the rear side in proximity to the storage conveyor 1. The transverse feed conveyor 4 has feed pawls 5 projecting on the conveying surface at intervals. Install. In addition, each lateral conveyor 4 (4 in the embodiment
The base) is driven in an interlocking manner, and the feed claws 5 are arranged in a line so as to be orthogonal to the lateral feed direction. The height of the conveying surface of the lateral feed conveyor 4 is the same as that of the storage conveyor 1 described above. Reference numeral 6 denotes an elevating type intermediate vertical feed conveyor which is also arranged on the rear side of the storage conveyor 1 so as to approach the storage conveyor 1. The intermediate vertical feed conveyor 6 is the first horizontal feed conveyor 4 described above.
It is arranged in the transport surface of. Further, the conveyor 6 is moved up and down by the pneumatic cylinder 7, and protrudes on the conveying surface of the lateral feed conveyor 4 at the ascending position, and sinks from the conveying surface at the processing position. When the intermediate vertical feed conveyor 6 is driven in the projecting position, the workpiece W is vertically fed in the longitudinal direction. Next, in FIG. 3, reference numeral 10 is a processed material W disposed between the storage conveyor 1 and the intermediate vertical feed conveyor 6.
The workpieces W at the storage position are individually inserted into the vertical feed position by the gripping means. That is, 11 is a fixedly provided mounting base 11a is a guide rail 12 arranged in the mounting base 11 in the front-rear direction (lateral feed direction), 12 is a moving base provided on the guide rail 11, and 13 is a moving base 12 in the front-back direction. Forward-moving pneumatic cylinders 14 that operate alternately
It is a lifting guide established from the upper part of 2. A pair of upper and lower clamp pieces 15 engaged with the elevating guide 14 are pneumatic cylinders for vertically moving the upper clamp piece a, and 16 are pneumatic cylinders for vertically moving the lower clamp piece b. Of the above, the upper clamp piece a stands by at the upper retracted position, and the lower clamp piece b stands by at the lower retracted position, and grips the workpiece W during the descending and ascending operations, respectively. Also,
In the pair of clamp pieces a and b, the movable table 12 is the first end of the front end.
Position, corresponds to the last row of work material W on the storage conveyor 1, and, when in the second position at the rear end, corresponds to the conveyance surface of the intermediate vertical feed conveyor 6. Reference numeral 17 is a contact-type ruler plate provided on the downstream side of the intermediate vertical feed conveyor 6. The ruler plate 17 contacts the front end of the vertically-worked workpiece W, and the workpiece is referenced with this end. Position W. 18 is the first horizontal feed conveyor 4
Corresponding pressing means for the workpiece W disposed on the upper side, the pressing means 18 includes a downward pneumatic cylinder 19 and a pressing plate 20 that is vertically moved by the pneumatic cylinder, and the workpiece W is fed laterally. Apply surface pressure to. First circular saw means A is provided at the rear of the ruler plate 17 and on the side of the first transverse feed conveyor 4. The circular saw means A is a circular saw 21 which rotates at a fixed position, and The holding mechanism 22 is used to cut the front end of the workpiece W. The circular saw means A may be of an elevating type in which the circular saw retracts from the lateral feed position of the workpiece W. A band saw cutting method may be used instead of the circular saw. Next, reference numeral 23 is an up-and-down second traverse conveyor connected to the first traverse conveyor 4 and provided rearward.
In this second lateral feed conveyor 23, the height of the conveying surface is set to two positions by the operation of the upward pneumatic cylinder 24. 25 is the second horizontal feed conveyor 23 described above
The vertical feed conveyor arranged on the rear side corresponding to the second horizontal feed conveyor 23 on the conveying surface of the vertical feed conveyor 25.
When the pneumatic cylinder 24 is extended, the conveying surface of the conveyor 23 projects above the vertical feed conveyor 25. Further, when the contraction operation is performed, the submersion unit immerses under the vertical feed conveyor 25. The transfer direction of the vertical feed conveyor 25 is as follows.
This is the same as the intermediate vertical feed conveyor 6 described above, and is a direction orthogonal to the horizontal feed direction. In addition, this vertical feed conveyor 2
5 is arranged so as to extend laterally (to the left in FIG. 1). In addition,
In the configuration so far, the storage conveyor 1, the first lateral feed conveyor 4, and the second lateral feed conveyor 23 are provided in large numbers at appropriate intervals as shown in FIG. A pair of the means 10 and the pressing means 18 are arranged at least on the left and right. Next, reference numeral B is a second circular saw means arranged in the middle portion of the vertical feed conveyor 25.
Is of a type in which the circular saw 26 is moved up and down, and is provided with a lifting operation means and a holding mechanism (both not shown). Further, on both sides of the position where the circular saw 26 moves up and down, there are provided ruler plates 27 that regulate the side surface position of the processed material W. 28 is a ruler plate 2
The lateral pressing member 29 that presses the processed material W against 7 is the processed material W
Is a lower pressing member for pressing downward. Reference numeral 30 is a vertical feed guide plate disposed on one side of the vertical feed conveyor 25 at an extension position of the ruler plate 27. C is a position regulating means for positioning the workpiece W to be vertically fed, 31 is a guide rail 32 in the feeding direction arranged on the downstream side of the vertical feed conveyor 25, and is movably arranged on the guide rail 31. The installed mount 33 is a restriction piece of the work material W projecting laterally from the mount 32 and is arranged on the conveying surface of the vertical feed conveyor 25. 34 is a servo motor which is a positioning drive source. 35 is a servo motor 34.
The feed screw 36 driven by is a passive nut cylinder of the mounting base 32 screwed to the feed screw 35. The construction of the cutting system according to one embodiment is as described above, and the working material W is smoothly transferred by the following operations to perform the constant-size cutting work. To do so, first, the work material W is charged on the upstream side of the storage conveyor 1. At this time, the longitudinal center of the processed material W is aligned with the array center of the storage conveyor 1. The reason is that the material used for manufacturing the base material has a small cross section and is long,
Many of them have a warp or a distortion, which causes an unbalanced transfer during lateral feeding. The introduction of the central reference is recommended as a method for eliminating the above-mentioned inconvenience because the processed materials that are sequentially stored have a good mutual balance. The work material W thus fed is laterally fed by the storage conveyor 1 to reach the position of the material feeding stop plate 2 at the rear end and stop there. By operating the storage conveyor 1 regardless of the stagnation of the processed material W, the processed materials W can be sequentially transferred and stored as a group of rows on the transport surface. When the processed material W is stored in this manner, the pair of upper and lower clamp pieces a and b which wait at the first position corresponding to the processed material W in the rearmost row are closed to remove the processed material W. Hold it.
When clamping is performed in the vertical direction as described above, a reliable gripping operation can be performed regardless of whether or not the workpiece W is warped. When the above gripping operation is completed, the driving of the storage conveyor 1 is stopped as shown in FIG. 3, and the material feeding stop plate 2 is retracted from the projecting position to the retracted position. At this time, the storage pressure of the work material group on the conveyor acts backward, but since the work material W at the rearmost end is firmly held as described above, there is no occurrence of tipping or irregular misalignment. .
After the material feeding stop plate 2 is retracted, the pneumatic cylinder 13 operates the movable table 12 backward, and the clamp piece a,
Move b. During this movement, the height of the intermediate vertical feed conveyor 6 is set higher than that of the first horizontal feed conveyor 4. Further, when the clamp pieces a and b move rearward from the first position, the material feeding stop plate 2 is set to the projecting position. Then, the storage conveyor 1 is driven to drive the subsequent processed material W.
Is fed sideways to the first position. When the material feeding stop plate 2 is at the projecting position, it is possible to freely feed the processed material W on the upstream side and further laterally feed it. When the movable table 12 reaches the rearward moving end and the clamp pieces a, b move to the second position, the gripping operation is released. By this operation, the lower clamp piece b is immersed in the transport surface of the intermediate vertical feed conveyor 6, and the work material W is supplied on this transport surface. When the material supply is completed, the intermediate vertical feed conveyor 6 is driven to transfer the processed material W in the longitudinal direction. Due to this vertical feed, the workpiece W stops at its front end abutting the ruler plate 17. After the contact of the work material W, the intermediate vertical feed conveyor 6 is set to the retracted position, and the work material W is transferred to the first horizontal feed conveyor 4 at the same position. When the work material W has been transferred, the first
The lateral feed conveyor 4 is driven to feed the workpiece W laterally by the feed claws 5. At the time of this lateral feed, the pressing plate 20 is moved downward to apply a pressing force to the upper surface of the processed material W. This surface pressure acts as a material feeding resistance and can prevent the processed material W from moving in a delusion. Therefore, the work material W is regulated by the feeding claws 5, that is, is regulated and transferred in the direction orthogonal to the lateral feeding direction. During the transverse feeding, the first circular saw means A acts on the front end of the processed material W, and the processed material W is cut by the circular saw 21 for the first time. When this cutting process is completed, the processed material W is transferred to the second horizontal feed conveyor 2
It is moved to No. 3 and continuously fed laterally. When the second circular sawing means B has not performed the cutting process, the second transverse feed conveyor 23 is set to the raised position and the processed material W is transferred to the end thereof. When the end of the horizontal feed is reached, the second horizontal feed conveyor 23 moves to the lowered position. By this immersing operation, the processed material W is transferred onto the vertical feed conveyor 25. When this transfer is completed, the vertical feed conveyor 25
Is driven to transfer the processed material W in the longitudinal direction. By this vertical feed, the processed material W abuts the processed front end against the restriction piece 33 and stops. The position of the above-mentioned regulation piece 33 is the processed material W.
Be set in advance before being sent. For example, when the work material W is supplied onto the first transverse feed conveyor 4, the length and cross-sectional dimension (height and width) of this work material are measured by a measuring means (not shown), and based on this information. If a computer is used to pick up a tree (select a machining program) and the servo motor 34 is driven and controlled based on the calculation information obtained as a result, the position of the restriction piece 33 can be set appropriately. When the positioning setting of the workpiece W is completed as described above,
The lateral pressing member 28 and the lower pressing member 29 are operated to hold the workpiece W in a fixed state, and the second circular saw means B is moved. By the above-mentioned movement of the circular saw 26, the processed material W is subjected to the second cutting processing and finished to a predetermined size. After the processing is completed, the lateral pressing member 28, the lower pressing member 29, and the restriction piece 33 are retracted from the conveyor conveying surface, and the product is carried out to the downstream side. It should be noted that the above-described series of explanations are focused only on the first processed material W, but it goes without saying that the cutting processing on the subsequent processed material W is similarly performed. In the above embodiment, the lower clamp piece b and the upper clamp piece a are moved up and down by different pneumatic cylinders. However, it is easy in design to operate both clamp pieces a and b with one pneumatic cylinder. In addition,
The lower clamp piece b may be fixedly arranged so as to coincide with the transfer surface of the storage conveyor 1. Also, it may be placed slightly higher than the transport surface so that it can be cushioned.
In any case, it can be applied as a main configuration of the present invention. Further, in one embodiment, when the material feeding stop plate 2 is retracted, if the pneumatic cylinder 13 for moving the gripping means 10 is set to be cushionable, the accumulated pressure can be gradually released. it can. Therefore, the gripping transfer can be performed more stably, and at the same time, it is possible to prevent the subsequent processed material from tipping or irregularly shifting. As described above, the material supply device for processing a base material according to the present invention clamps and holds the processed material in the vertical direction, and thereafter releases the material-feeding stop plate for transfer. Is. Therefore, it is possible to surely grip even a processed material having a warp, and even if the stored pressure acts, the processed material does not tip over, which is an excellent effect. Therefore, it is possible to solve the problem that the operating rate of the precut processing machine is reduced due to this.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a plan view showing a schematic configuration of a base material processing machine including a material supply device according to the present invention. FIG. 2 is likewise a side view of the processing machine. FIG. 3 is likewise a partial side view showing an operating state. FIG. 4 is an operation explanatory view showing a configuration of a conventional material supply device. FIG. 5 is also an operation explanatory diagram. [Explanation of Codes] 1 Storage Conveyor 2 Feeding Stop Plate 3 Pneumatic Cylinder 4 First Horizontal Feeding Conveyor 10 Grasping Means 12 Moving Base 13 Pneumatic Cylinder a Upper Clamp Piece b Lower Clamp Piece A First Circular Saw Means B Second circular saw means C Position regulating means W Worked material

Claims (1)

What is claimed is: 1. A horizontal feed conveyor for laterally feeding a work material, and a feed stop plate provided at the end of the conveyor to store a large number of work materials on a conveying surface, and to process the last part of the stored work material group. In a device that takes out a material and feeds it to the next process, a machining that moves to a first position corresponding to the last processed material and a second position corresponding to the feeding position to the next process Material holding means is provided, and the holding means is composed of a lower clamp piece that operates upward and an upper clamp piece that operates downward, and the material feed is performed after the work material is clamped by the above-mentioned holding means. A material supply device for processing a base material, characterized in that the stop plate is retracted.