JPH07144813A - Regulating device for tip accumulation position in accumulating machine of thin plate - Google Patents

Abstract

PURPOSE:To provide a regulating device for the tip accumulation position capable of efficiently accumulating somewhat soft thin plates while regulating the tip accumulation position almost constant in an accumulating machine of the thin plates. CONSTITUTION:This regulating device for the tip accumulation position is provided with a reciprocatable buffer ruler 3 waiting at the waiting position M in front of a specific tip accumulation position N and preferentially retreated in contact with the tip of a thin plate 8 whenever the thin plate 8 carried into an accumulating machine is dropped obliquely downward, a fixed ruler 4 invariably located at the specific tip accumulation position N and finally brought into contact with the tip of the thin plate 8 to be replaced with the buffer ruler 3 retreating in contact with the thin plate 8, and a return mechanism 6 returning the buffer ruler 3 to the waiting position M whenever the thin plate 8 is dropped below the buffer ruler 3. The thin plate 8 shifts part of the kinetic energy to the buffer ruler 3 brought into contact first, then it is brought into contact with the fixed ruler 4 in the accelerated state, thus fatal phenomena such as the breakage of a tip section and the buckling of an intermediate section occur even if the thin plate 8 is somewhat soft, and it can be efficiently accumulated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tip depositing position regulating device in a depositing machine for sequentially depositing thin plate materials.

[0002]

2. Description of the Related Art Conventionally, as a type of a depositing machine for sequentially depositing plate-like objects, the plate-like objects are sequentially carried into the depositing machine through various transport conveyors such as a piercing conveyor and a suction conveyor, and forced. The tip of the plate-shaped object by directly colliding with a fixed ruler arranged at a predetermined tip-deposited position in the process of falling freely or obliquely downward and accumulating. A method of depositing with constant regulation is known, and the structure is extremely simple and the deposition efficiency is not so bad.

[0003]

However, it is possible to directly collide the tip of the plate-like object with the fixed ruler in such a manner by depositing a solid plate-like object such as a plywood or a synthetic resin plate at a low speed. Only when loading into a machine, for example, when the plate-shaped object is a little firm, but the loading speed is high, or when the plate-shaped object is a soft thin plate material (for example, veneer veneer In the case of transporting paper in a direction orthogonal to the fiber), etc., a fatal phenomenon such as damage to the tip of the plate-like object or buckling of the middle part is likely to occur due to the collision, so It is difficult to deposit, and in other words, the tip of the plate-like object is slightly inclined with respect to the transport direction (in the actual process, due to factors such as a minute speed difference between the left and right sides of the transport conveyor). , The plate-like object is often transported at a slight angle) If only have partial strikes the fixed ruler earlier, concentrated load on the narrow portion, so more easily the fatal phenomenon occurs, deposited by the format was very difficult.

Furthermore, as another form, in place of the fixed ruler in the above-mentioned form, a movable ruler held by an elastic member such as a spring so as to be elastically displaceable is provided, and the elastic member contracts to form a plate shape. The impact caused by the collision between the object and the movable ruler is buffered and absorbed, and the plate-like object is once dropped to a position posterior to the predetermined deposition position, and then the elastic force of the elastic member is utilized to move the movable ruler to the movable ruler. By re-moving the plate-like object in the opposite direction to the carrying-in direction together, there is also known a type in which the tip end deposition position of the plate-like object is regulated to be substantially constant. Moreover, the occurrence of a fatal phenomenon due to the inclination of the transporting posture of the plate-like object is reduced, and it is a correspondingly effective improvement type.

However, as described above, in order to move the dropped plate-like object again in the direction opposite to the carrying-in direction, it is essential that the plate-like objects can slide smoothly. In the case of a soft thin plate material, the transmission of force from the front end to the rear end cannot be performed well, which causes a problem of buckling of the tip part or the middle part of the thin plate material to be re-moved, It is also difficult to deposit by the above-mentioned improved method, and after all, by acknowledging the deterioration of the deposition efficiency, the transport is temporarily stopped, and then it is dropped vertically to deposit, or the regulation is abandoned and it deposits randomly. However, all of them were practically unreasonable.

[0006]

The present invention was developed with further improvement so that even if a thin plate material is a little soft, the tip deposition position is regulated to a substantially constant value and efficient deposition is possible. However, specifically, it is usually waiting at a standby position that is in front of the predetermined tip deposition position, and whenever the thin plate material carried into the deposition machine is dropped diagonally downward, it is preferentially thinned. Finally, the thin plate material is replaced by a buffer ruler that moves back and forth by contacting the tip of the plate material, and a buffer ruler that is always located at a predetermined tip accumulation position and retracts when it contacts the thin plate material. In the thin plate material depositing machine, a fixed ruler that abuts against the tip of the thin plate material and a return mechanism that returns the buffer ruler to the standby position each time the thin plate material falls below the buffer ruler are provided. A tip end position regulating device (claim 1); According to the structure of the mounting, Thus also the central portion of the buffer ruler, proposes a made by slightly projecting carrying direction opposite the direction of the thin plate apparatus (claim 2).

[0007]

According to the structure of claim 1, the thin plate material is
A part of the kinetic energy possessed is passed on to the buffer ruler that comes into contact first, and it comes into contact with the fixed ruler in the decelerated state, so even if it is a little soft, the fatal phenomenon described above is unlikely to occur.
Further, therefore, it is possible to carry in the thin plate material at a correspondingly high speed from the beginning, so that efficient deposition can be performed. Further, according to the structure of claim 2, even if the thin plate member is slightly inclined with respect to the conveying direction, a considerable part of the range from the tip to the central part on one of the left and right sides is almost one. Since the load is distributed by contacting the buffer ruler like this, the occurrence of a fatal phenomenon due to the concentration of the load in a narrow area as in the past can be alleviated. Since the inclination is corrected by abutting against the fixed ruler, there is no possibility that the deposition posture deteriorates. Of course, if the thin plate is not tilted with respect to the transport direction, the central part of the plate will contact the cushioning ruler almost evenly and the load will be distributed, so it will be effective without any special problems. Deposition can take place.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in more detail below with reference to an example illustrated in the drawings. However, the control system for controlling the operation of each device constituting the depositing machine does not take a particular peculiar form, Since it does not matter in a very ordinary form, illustration is omitted for convenience.

FIG. 1 is a schematic plan view of a depositing machine using a regulating device according to the present invention, FIG. 2 is a schematic side view of the depositing machine illustrated in FIG. 1, and FIG. 3 is FIGS. FIG. 4 is a partially enlarged perspective view of the deposition machine illustrated in FIG. 4, and FIG. 4 is an enlarged plan view of the cushioning ruler and the thin plate material.

In the figure, 1 is a piercing belt 1a and a pulley 1.
b, a piercing conveyor having a drive shaft 1c, etc., driven by a drive source (not shown) such as an electric motor and driven at a high speed in the direction of the arrow shown in the drawing, to a puncturing place in front of the depositing machine. At this point, the thin plate material 8 such as veneer veneer that has been stabbed and held from the upper surface side is continuously conveyed to a predetermined area where the holding should be released.

Reference numeral 2 denotes a knock-down bar 2a, a rotating arm 2b,
A knockout mechanism having a drive shaft 2c and the like, which is a plate material detector (not shown) for detecting that the thin plate material 8 has reached a predetermined area via the puncturing conveyor 1, or transfer from a puncturing place. Based on a start signal from an encoder (not shown) that measures the distance, a drive source (not shown) such as a servomotor / motor with clutch & brake is driven to operate intermittently, and the thin plate material 8 has a predetermined length. Each time it reaches the area, the stab is forcibly released and dropped diagonally downward.

Reference numeral 3 denotes a buffer ruler having a ruler plate 3a, a support plate 3b, a slide beam 3c, a slide guide 3d, etc., which is slidably mounted on a slide surface 5a of a slide base 5 described later. . Normally, as shown by the solid line, the device waits at a standby position M, which is in front of the predetermined tip depositing position N, and whenever the thin plate member 8 is dropped obliquely downward, it strikes the leading end of the thin plate member 8 preferentially. Although it comes into contact with each other and retreats to the rear position as shown by the dotted line, it is returned to the standby position M again later via a return mechanism 6 described later.

Reference numeral 4 denotes a fixed ruler having a regulating plate 4a, a fixed beam 4b, etc., and the fixed beam 4b is fixed to a machine frame (not shown) of a depositing machine or the like, so that a predetermined tip deposition position is always maintained. Positioned at N, it finally contacts the tip of the thin plate material 8 so as to replace the buffer ruler 3 that moves backward with the contact with the thin plate material 8, and regulates the tip accumulation position.

Reference numeral 5 denotes a slide guide which also has a slide surface 5a, a guide wall 5b, a stop wall 5c and the like, and also serves as a stopper. In order to keep the slide surface 5a horizontal or substantially horizontal, a machine frame (not shown) of the deposition machine is shown. ) And the like, slidably supports the buffer ruler 3 and uniformly regulates the return to the standby position M.

Reference numeral 6 is a return mechanism composed of a fluid cylinder or the like, and the thin plate member 8 moves downward from the buffer ruler 3 based on a delay signal which is quantitatively delayed with respect to the starting signal of the knock-down mechanism 2. Each time it falls, set the buffer ruler 3 to the waiting point N
Return to.

Reference numeral 7 denotes a stacking table that can be moved up and down. At the start of the stacking, the height of the uppermost surface of the stacking table 7 (if necessary, if a floorboard is used, the topmost surface of the floorboard) is also set, After the start, a pile 8a of thin plate material deposited on the deposition table 7
On the basis of a start signal from a height detector (not shown) for detecting the height of the uppermost surface of the device, etc., control of a controller (not shown) or the like is performed, and the thin plate materials 8 that are sequentially falling are always omitted. Receive at a certain height.

Reference numeral 9 is a fixed guide having a guide plate 9a, a fixed beam 9b and the like. If necessary, for example, the thin plate material 8 previously deposited is hooked obliquely on the fixed ruler 4 and deposited later. It is sufficient to preliminarily dispose the thin plate member 8 in accordance with a case where the thin plate member 8 is prevented from abutting against the fixed ruler 4 and the thin plate member 8 deposited later is exceptionally repelled. The thin plate material 8 may be repelled exceptionally by fixing it to a machine frame (not shown) of the stacking machine so as to face the fixed ruler 4 with a space sufficiently larger than the width. For example, the repulsion area is restricted to a certain value or less.

As is clear from FIG. 4, the buffer ruler 3 has a center portion slightly projected in a direction opposite to the direction in which the thin plate member 8 is loaded.

The regulation device according to the present invention is constructed as described above, for example, and the thin plate material 8 carried into the predetermined area by the piercing conveyor 1 is forcibly dropped by the knocking-down mechanism 2. Then, since it has kinetic energy (inertia) and falls obliquely downward, its tip comes into contact with the buffer ruler 3 waiting at the waiting position N. As a result, the buffer ruler 3
Moves backward as shown by the dotted line, while the thin plate member 8
Pass some of the kinetic energy that you have to the buffer ruler 3,
Although it further falls obliquely downward in the decelerated state, it eventually stalls because it comes into contact with the fixed ruler 4, and the tip deposition position is regulated, and it is deposited on the deposition table 7 or the thin plate pile 8a. To be done. On the other hand, when the thin plate material 8 falls below the buffer ruler 3, the return mechanism 6 causes the buffer ruler 3 to wait at the waiting point N every time (at least before the next thin plate material 8 is knocked down). Return to.

Hereinafter, by repeating the same operation, the thin plate materials can be sequentially deposited. However, according to the structure of the regulating device according to the present invention, the thin plate materials are first contacted with the buffer ruler.
Since a part of the kinetic energy held is passed on and abutted against the fixed ruler in the decelerated state, even if it is a little soft,
A fatal phenomenon such as the case of contacting a fixed ruler from the beginning as in the past is unlikely to occur, and therefore, it is possible to carry in a thin plate material at a correspondingly high speed from the beginning, so that efficient deposition can be performed. .

Further, as is clear from FIG. 4, if the central portion of the cushioning ruler is made to slightly project in the direction opposite to the carrying-in direction of the thin plate material, the thin plate material is conveyed with respect to the carrying direction as indicated by the dotted line. Even if it is slightly inclined, a considerable portion (a portion corresponding to the two ruler plates on the right side in the example) within the range from the tip on one of the left and right sides to the central portion is almost even. Since the load is distributed by contacting with the, the occurrence of a fatal phenomenon caused by the concentration of the load in a narrow area as in the past is alleviated, and finally, the fixed ruler is also applied. Since the inclination is corrected by abutting against, there is no fear that the deposition posture deteriorates. Of course, as shown by the solid line, if the thin plate is not inclined with respect to the transport direction, the load will be distributed because the considerable part of the center part will almost uniformly contact the buffer ruler, so that the load will be distributed. Equally effective deposition can be carried out without hindrance.

In the above embodiment, a single-row buffer ruler was used, but if necessary, it may be divided into a plurality of sheets in the conveying direction of the thin plate material, and usually between them. There is no problem with using a double-row cushioning ruler that provides an appropriate cushioning space to stand by, and is slidably supported as in the above embodiment, so that the kinetic energy transferred from the thin plate material is positively generated by friction. In addition to the form of consuming electricity, it is also possible to adopt a form in which it is slidably supported via linear motion bearings, etc., and is retracted with almost no resistance at least immediately after abutting with the thin plate material. It suffices that the shape of the thin plate member be in contact with the tip of the thin plate member and retractable so as to replace the fixed ruler, and the design may be changed appropriately regardless of the form of the above embodiment, but in any case, its own weight is required. If there is an excess or deficiency in the Preferably to select on the basis of experiments, and if the self-weight of the sheet material is varied periodically, due removable of the weight, preferably adjustable.

Further, as for the form of the fixed ruler, the point is that the form of contacting the tip of the thin plate material in place of the cushioning ruler and restricting the accumulation position of the tip of the thin plate material is sufficient. You can change the design as you like,
It is preferable to select the interval between the tip deposition location where the fixed ruler is located and the standby location where the buffer ruler is waiting, also based on experiments.

Further, the form of the main body of the depositing machine is not limited to the form of the above-mentioned embodiment, and the point is that the thin plate material carried into a predetermined area via various conveyors or the like is dropped obliquely downward and deposited. For example, various conventionally known forms can be applied, and if necessary, by bending the thin plate material upward or downward in a direction orthogonal to the transport direction at the start of dropping, while improving rigidity in the transport direction. It is also possible to apply a depositing machine that uses a knockdown mechanism in which it is dropped obliquely downward.

[0025]

As is apparent from the above, according to the regulating device of the present invention, even if the thin plate material is a little soft, the tip deposition position can be regulated to be substantially constant and efficient deposition can be performed. Also, even if the tip of the thin plate material is slightly inclined with respect to the transport direction, the tip deposition position can be controlled without difficulty, so it has excellent applicability to actual processes and is suitable for the thin plate material deposition process. The implementation effect is extremely large.

[Brief description of drawings]

FIG. 1 is a schematic plan view of a deposition machine using a regulation device according to the present invention.

FIG. 2 is a schematic side view of the deposition machine illustrated in FIG.

FIG. 3 is a partially enlarged perspective explanatory view of the deposition machine illustrated in FIGS. 1 and 2.

FIG. 4 is an enlarged plan view of a cushioning ruler and a thin plate material.

[Explanation of symbols]

 1: piercing conveyor 2: knock-down mechanism 3: buffer ruler 4: fixed ruler 5: slide guide that also serves as a stopper 6: return mechanism 7: stacking table 8: thin plate material

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Makoto Isobe 3-130 Kajita-cho, Obu-shi, Aichi Stock Company Meinan Manufacturing Co., Ltd.

Claims (2)

[Claims] 1. A regulation device that regulates the tip accumulation position of thin plate materials that are carried into a depositing machine at a high speed and dropped and accumulated. Normally, the regulation device waits at a standby position that is anterior to a predetermined tip accumulation position. Each time the thin plate material carried into the depositing machine is dropped obliquely downward, the cushioning ruler that moves back and forth preferentially abutting the tip of the thin plate material, and is always located at the predetermined tip depositing point, The fixed ruler that finally contacts the tip of the thin plate material and the buffer ruler each time the thin plate material falls below the buffer ruler so that it replaces the buffer ruler that recedes with the contact with the thin plate material. A regulating device for a tip deposition position in a thin plate depositing machine, comprising a returning mechanism for returning to a standby position. 2. A device for regulating a tip end deposition position in a thin plate material depositing machine according to claim 1, wherein a center portion of the cushioning ruler is slightly projected in a direction opposite to a direction of carrying in the thin plate material.