JPS5941896B2 - Advance cutting machine for woodworking machines - Google Patents

Description

Detailed Description of the Invention The present invention is disclosed in Japanese Patent Application No. 54-129082 (Japanese Patent Publication No. 58-1982).
(Publication No. 17002) ``This relates to an improvement of a front panel for a woodworking machine.

The above-mentioned patent application No. 129082/1982 "Advance cutting machine for woodworking machine"
is attached to the front part of the conveyor frame, whose rear end is pivoted to the top of the machine frame and can be freely swung up and down from a horizontal position using a lifting mechanism.
A movable frame is supported so as to move forward and backward, a conveyor roller is pivotally supported at the front end of the movable frame, and an adjustment roller is pivotally supported at the rear end, and a conveyor roller is pivotally supported at the rear end of the conveyor frame, and a receiving roller is pivotally supported at the lower front end. At the bottom of the belt conveyor, a belt is stretched over each of the rollers, and the length of the belt can be adjusted by advancing and retracting the movable frame, and the upper end is connected to the front conveyor. It is pivotally connected to the shaft of the roller, and its lower end is arranged so that it rolls on the horizontal guide surface at the bottom of the machine frame, and its midpoint is arranged so that it rolls on the horizontal guide surface, and its middle point is arranged so that it rolls on the horizontal guide surface at the bottom of the machine frame. is pivotally attached to a lever half the length of the operating rod having a fulcrum at the front end of the horizontal guide surface, and this lever allows the vertical movement of the front conveyor roller to be performed by moving forward and backward as the operating rod rises and falls. Therefore, even if there is a difference in tension between different parts of the belt, the movable frame driven by the operating rod will operate equally on the left and right sides without being affected by the difference in tension, allowing the belt to stretch straight and reach the tip. In order to prevent deflection of the goods, the conveying direction of the goods is always constant, ensuring that the goods are correctly fed to a fixed position and stacked.In addition, since only the load of the conveyed goods acts on the belt conveyor, the belt wear and tear is minimal, and can be used safely for longer than its service life.Also, since this advance machine operates the movable frame by the ups and downs caused by the advance and retreat of the operating rod, the operation is light and there is no stress on other parts. Since the machine frame, conveyor frame, operating rod, lever, etc. have a lightweight structure, the manufacturing cost of the machine can be greatly reduced, and the weight of the machine can be reduced, making it easier to connect to related equipment by moving it. The conveyor frame of this front-loading machine is easy to deploy, but because it moves up and down by rotating around the shaft of the rear conveyor roller, it tilts downward when descending and upward when ascending. This is because the conveyor changes the delivery angle of the material, which interferes with the stacking of materials, and when tilting downward, the front corner rubs the surface of the material at the bottom as it rides on top of it, as shown in Figure 7 of the drawing. As a result, the materials on the lower tier were scratched or misaligned, disrupting the stacking.Also, when tilting upward, the material moved away from the material on the lower tier and moved diagonally upward, as shown in Figure 6 of the drawing. The moment the material's center of gravity moves outside the conveyor, it falls onto the material on the lower stage, scraping the surface of the material and causing scratches, shifting the material and causing a mess, and also causing the feed claws on the conveyor to fall. When attached, there was a drawback that the feeding claws could catch on the material at the lower stage and cause damage.

However, in the advance taker according to the present invention, an auxiliary conveyor is connected in front of the movable frame in the advance taker of the earlier application, and the auxiliary conveyor is connected to the front end of the auxiliary conveyor in conjunction with the operation rod to control the ups and downs of the conveyor frame. Since the conveyor frame is connected to horizontal holding rods that keep it horizontal regardless of the height, if the conveyor frame is raised and lowered by rotating around the axis of the rear conveyor roller, the auxiliary conveyor that is raised and lowered along with the conveyor frame will be raised and lowered by the horizontal holding rods. The material sent by the conveyor is kept horizontal at all times by the action of the conveyor, and the material sent by the conveyor is leveled and sent onto the material in the lower tier, so the feeding of the material does not scrape the surface of the material in the lower tier or shift the material in the lower tier. Since it is done smoothly, it can be used to collect and stack materials after painting. There is no waste, and the stacking is done in an orderly manner, which is convenient for subsequent processing.Also, when the materials are transferred by an auxiliary conveyor, it is necessary to prevent the materials from slipping when the conveyor tilts upward. Even if the conveyor is equipped with a feeding claw, it will not get caught in the stack. It has benefits.

Next, an embodiment of the advance cutting machine for a woodworking machine according to the present invention will be described below with reference to the drawings.

In the figure, 1 is the machine frame, which is formed into a box shape with an open front.Horizontal guide surfaces 2, 2 projecting forward are provided on both sides of the lower part, and the middle of these guide surfaces 2, 2 is connected by a joint 3. The carriage 4 can be inserted up to the position of the joint rod 3, and flexible wheels 5, 5 are attached to the front and rear of the outside of the guide surface. Reference numeral 6 denotes a conveyor frame, whose rear end is pivotally connected to the upper part of the machine frame 1 using the shaft 8 of the conveyor roller 1, so that it can swing freely in the vertical direction, and has two sets of rollers 9 sandwiched in the front and rear. A movable frame 10 that can move forward and backward is mounted, a conveyor roller 11 is attached to the front end of the conveyor roller 11 on a shaft 12, an adjustment roller 13 is attached to the rear end of the movable frame 10, and the lower side of the front end of the conveyor frame 6 corresponds to the adjustment roller 13. A receiving roller 14 is pivotally supported.

15 is a belt conveyor that extends over conveyor rollers 7 and 11, an adjustment roller 13, and a receiving roller 14, and a movable frame 10.
At the same time, the adjustment roller 13 is moved back and forth to move the belt conveyor 15.
The conveyor 15 is divided into several strips, and feeding claws 16 are attached at predetermined intervals on both sides of the central conveyor. On both sides of the conveyor, the receiving plate 17 is removed and the feed claws 16 are used to remove the material 18.
When this is suppressed, the conveyor bends and the feed pawl 16 is lowered below the conveyor surface.

A is a raising and lowering mechanism for the conveyor frame 6, and a lever 21 is fixed to the shaft of a reducer 20 which is driven by a motor 19.
1 and the conveyor frame 6 are connected by a link 22. 23 is an operating rod that is longer than the conveyor frame 6;
Its upper end is pivotally connected to the shaft 12 of the front conveyor roller 11,
A roller 24 pivoted at the lower end is brought into contact with a horizontal guide surface 2 provided at the bottom of the machine frame 1, and the horizontal guide surface 2 is located at the midpoint.
It is pivotally connected to a lever 26 having a half length of an operating rod 23 having a fulcrum 25 at the front end thereof, and the lever 26 is used to perform forward and backward movements associated with ups and downs.

27 is a relay belt conveyor that receives the material 18 from the woodworking machine 28 and transfers it to the belt conveyor 15. The conveyor frame 31 has a shaft 30 attached to the upper part of the machine frame 1 in the opposite direction to the conveyor frame 6, and is swingable up and down. The conveyor rollers 32 and 33 are suspended endlessly from the pivot portion of the conveyor rollers 32 and 33, which are pivotally supported at the tips.

A motor 34 drives the belt conveyor 15, the relay conveyor 27, and an auxiliary conveyor to be described later, and is connected to the conveyor rollers 7 and 32 via a speed reducer 35 and a variable speed pulley 36.

37 is a lifting mechanism for the conveyor frame 2, one end of which is attached to the conveyor frame 6.
, and the other end is connected to the machine frame 1 using a tambuckle or the like.

Reference numeral 38 denotes an auxiliary conveyor connected in front of the belt conveyor 15. A conveyor roller 40 is pivotally supported at the tip of a conveyor frame 39 whose rear end is pivotally connected to the shaft 12 of the conveyor roller 11. A belt is endlessly stretched around a conveyor roller 11 fixed to a shaft 12 between 15 and 15.

41 is a horizontal holding rod that keeps the auxiliary conveyor 38 horizontal at all times, the upper end of which is pivotally connected to the shaft 42 of the conveyor roller 40, and the lower end of which is connected to the operating rod 23 by a link 43 having the same length as the conveyor frame 39. It constitutes a pantograph, and rollers 44 that roll on the guide surface 2 are attached to the lower end.

Reference numeral 45 denotes a material detector such as a phototube attached to the front end of the conveyor frame 39 facing forward, and when a material is detected, the conveyor 6, 39 is raised by the thickness of the material by the elevating mechanism A and then stopped.

In addition, in this pre-setting machine, a roller 24 is pivoted to the lower end of the operating rod 23, and a roller 44 is pivoted to the lower end of the horizontal holding rod 41.
When machining debris accumulates on the guide surface 2 where the rollers 24 and 44 roll,
This may cause unstable operation or failure.
By providing a restraining plate parallel to the guide surface 2 and in contact with the upper peripheral surface of the rollers 24, 44, it is possible to reduce the intrusion of wood chips onto the guide surface 2 and to prevent the movement of the rollers 24, 44. It is possible to guarantee reliable operation by regulating the One embodiment of the advance picker according to the present invention is configured as described above, so that after aligning the rear end of the relay belt conveyor 31 with the delivery position of the material 18 on the woodworking machine 28,
When stacking materials in two rows, front and back, the rear half of the truck 4 is inserted between the guide surfaces 2, 2, and the front end of the auxiliary conveyor 39 is exposed to the center of the truck 4. When the belt conveyors 15, 27, 38 are rotated, the material 18 sent out from the woodworking machine 28 is transferred to the conveyors 15, 27.
, 38 to the front half of the truck 4, and the detector 45 detects the material 18, sends a rising signal to the elevating mechanism A, and the elevating mechanism A moves the conveyors 15, 38 by the thickness of the material 18. When stopping after raising the conveyors 15 and 38, the next material 18 is sent and rides on the preceding material 18, and the detector 45 is activated to raise the conveyors 15 and 38, which is repeated.
In this case, the shaft 12 of the front conveyor roller 11 in the conveyor 15 has its lower end in contact with the horizontal guide surface, and its middle part in contact with the horizontal guide surface 2. It is pivotally connected to the upper end of an operating rod 23 that is pivoted to a lever 26 having a fulcrum 25 at the front end, and the operating rod 23 is given a forward and backward movement due to ups and downs by rotational movement about the fulcrum 25 of the lever 26, As shown in the principle diagram in Figure 4, the front conveyor roller 11 is always moved up and down through vertical lines B and C, so the front conveyor roller 11 moves backward as it rises until it reaches the horizontal position. The length of the conveyor 15 is reduced by pushing the frame in and gradually increasing the amount of belt feeding by the adjustment roller 13, but when it is above the horizontal position, it moves forward as it rises, and the movable frame 10 is pulled out and the adjustment roller 1
3, the length of the conveyor 15 is increased, and the tip of the conveyor 15 is given vertical movement, so the tip of the auxiliary conveyor 38 connected to the conveyor 15 is also vertical. The conveyor frame 39 is lifted up and down along the line, and is pushed up when the conveyor frame 39 is below the horizontal level, and pulled down when it is above the horizontal level by the horizontal holding rod 41 whose tip forms a pantocrab with the operating rod 23 and interlocks with each other. The auxiliary conveyor 38 maintains the horizontal state regardless of the inclination angle of the belt conveyor 15, receives the material 18 sent from the belt conveyor 15, and sends it horizontally onto the preceding material 18, so it does not scrape or shift the material on the lower stage. The material can be stacked smoothly without any smearing, and even when used for pre-picking up materials after painting, there will be no loss or mess of materials.

In addition, this pre-picking machine is used because articles tend to slip when the belt conveyor 15 is tilted upward, so in order to prevent this, the conveyor 1
If a feeding claw 16 is provided in a part of the material 1, the feeding claw 16 can be
When the feed claw 16 is pressed by the material 18, it becomes flat with the conveyor surface due to the curvature of the conveyor and stabilizes the material, as shown in Figure 5 of the drawing. It is something that makes you

[Brief explanation of drawings]

The drawing shows one embodiment of the device according to the present invention.
The figure is a longitudinal side view. Figure 2 is a plan view. FIG. 3 is an explanatory diagram showing the stacking state of materials, and FIG. 4 is a diagram of the operating principle. FIG. 5 is a longitudinal sectional front view of the belt conveyor provided with feeding claws. FIGS. 6 and 7 are explanatory diagrams showing the material delivery state when there is no auxiliary conveyor. In the figure, 1 is the machine frame, 2 is the horizontal guide surface, 6 is the conveyor frame, A
10 is a movable frame, 7 and 11 are conveyor rollers, 13 is an adjustment roller, 14 is a receiving roller, 15 is a belt conveyor, 23 is an operating rod, 25 is a fulcrum shaft, and 26 is a lever
38 is an auxiliary conveyor, 1 is a horizontal holding rod, and 43 is a parallel holding member.

Claims (1)

[Claims] 1. A conveyor frame whose rear end is pivotally connected to the upper part of the machine frame, a levitation mechanism that is linked to the conveyor frame at its lower part and raises the conveyor frame above a horizontal position or collapses it downward, and the conveyor frame. A movable frame supported on the front part of the frame so as to move forward and backward; front and rear conveyor rollers pivotally supported on the front end of the movable frame and the rear end of the conveyor frame; and an adjustment roller pivotally supported on the rear end of the movable frame. and a belt conveyor that is suspended over a receiving roller that is pivotally supported at the intermediate lower part between the adjustment roller and the front conveyor roller, and whose effective length can be freely adjusted by moving the movable frame back and forth; an operating rod that is pivotally connected to the shaft of a conveyor roller and whose lower end is longer than the conveyor frame for moving a lower horizontal guide surface of the machine frame; A lever whose base is fixed to the front end of the horizontal guide surface by a fulcrum shaft, whose tip is pivotally connected to the middle of the operating rod, and which moves forward and backward in accordance with the ups and downs of the operating rod, and a lever connected to the front of the movable frame. and a horizontal holding rod that is pivotally attached to the front end of the auxiliary conveyor frame and connected to the operating rod by a parallel holding member to keep the auxiliary conveyor horizontal at all times. Advance machine for machines.