JPH0676157B2 - Inversion device for flat plate members - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a plate-shaped member reversing device, and more particularly to a table base plate for processing both sides of a woodwork product separately.
The entrance door or mirror stand has a different thickness and size, and also has a different peripheral surface shape, so that a flat plate member that is difficult for one person to handle is easily inverted during processing.

In the flat plate-shaped member as described above, when the processing of one side is completed, it is reversed and the other side is processed, but since many of them are heavy, considerable personnel and labor are required. In addition, these products are easily scratched and scratched, so careful attention is required during reversal work. Further, even if such a flat plate-like member is automatically transferred through a transfer device that transfers it in a certain direction and it is attempted to be reversed in the middle of it, it is completely impossible with human power. Therefore, in order to reversely supply the sheet, it is inconvenient that the sheet must be once pulled out of the transporting apparatus, inverted, returned to the original position of the transporting apparatus and transferred to the next step, and a wide working space is required. Further, in the case of a flat plate-like member, there are many things which hinder the reversing work unless the gripping position is recognized, and in the case of an object having an average mass, the reversing work can be easily carried out by grasping the central portion thereof.

Therefore, the reversing device of the present invention eliminates these drawbacks, automatically determines the gripping position, and waits for the next reversing member to arrive at the reversing open state position.

The present invention will be described in detail below based on the embodiments shown in the drawings. 1 is a front view in the carrying direction, FIG. 2 is a side view, and FIG. 3 is a sectional view taken along the section line XX in FIG. The reversing device 13 for reversing the flat plate-shaped member as described above in these drawings is installed between the conveying device A and the conveying device B. A roller type transport device is used as the transport device, and the roller 1 at the leading end of the feed-in transport device A is a length measuring roller. The length measuring roller 1 is constantly floated slightly and is interlocked and supported.
When a flat plate member (not shown) enters from the direction of arrow G, it is pushed down by this member and rotated. Reference numeral 2 denotes a measuring device, and this measuring device 2 is adapted to integrate the lengths of the rotating peripheral surfaces of the length measuring roller 1. Reference numeral 3 denotes a measurement receiving device, which is provided on the entry side of the reversing device 13, and the measurement receiving device 3 measures the length of a flat plate member in the same manner as or in cooperation with the measuring device 2. The measurement receiving device 3 has a function of detecting one half of the measured length and outputting an electric signal. Then, this electric signal stops the carrier devices A and B. This stop is activated when the central portion of the flat plate-shaped member reaches the gripping position of the reversing device 13. Therefore, the transported flat plate member is stopped with the half of its length being the gripping position of the reversing device 13.

Further, both the transfer devices A and B are fixedly provided on the base 8, and the reversing device 13 is a moving base provided on the base 8 so as to be reciprocally movable on rails 9 and 10 laid orthogonal to the transfer direction. It is provided above 12. The movable table 12 is provided with bearings 11 and 11 along the rails 9 and 10 and a driving device D, and engages with a fixed long rack to reciprocate, as shown in FIG. As shown in FIG. 1, the conveyance device A is sandwiched between the right side and the left side.

On the other hand, the reversing device 13 provided on the moving table 12 is adapted to be supported by the support walls 14 and 15 fixed to the moving table so as to face each other, and the tops of the supporting walls are the transfer device A, It is projected above the surface of B. Bearings 18 and 19 are attached to the protrusions either directly or via support plates 16 and 17, respectively, and both ends of the swivel shaft 20 are supported by the bearings.

On the other hand, the reversing device 13 forms a frame together with the upper wall 26 and the lower wall 27 of the side walls 24 and 25, and the gripping open holding arms 4,5 of the flat plate-like member are formed in this frame.
Roots of the frame are respectively supported, and the swivel shaft 20 is passed through the upper and lower central parts of the front surface (projecting side of the sandwiching arm) side of this frame, and the reversing device 13 is rotatably and rotatably supported. There is. And the driving means, on the outer surface of the side wall 24 of the frame, attach a semicircular large gear 21 with the pivot 20 as the core,
It meshes with a small gear 22 attached to the output shaft of the reduction gear constituting the drive unit C attached to the outside of the support wall 14. Therefore, when the drive unit C is activated, the reversing device 13 turns. The drive unit C is driven by a belt (not shown) from the illustrated forward / reverse rotation motor.

Also, inside the supporting wall body 15, in the turning trajectory of the frame, the protruding piece 47
The projecting piece 47 is engaged with the shock absorbers 45 and 46 attached to the outside of the side wall 25 of the frame. This shock absorber allows the pressure to be adjusted and engages with the protruding piece so that the holding arms 4 and 5 are substantially horizontal and the reversing device 13 is provided.
The 180 degree turn of the is regulated. In addition, a weight 23 is attached to the rear side of the frame in order to make this turning motion smooth.

On the other hand, the sandwiching arms 4 and 5 are configured such that the arm portions project from the frame, and sandwiching faces 7 and 6 made of an elastic material that do not damage the flat plate-shaped member are provided on the opposing sandwiching surfaces. In addition, the bases of the holding arms 4 and 5 are each a wide flat base 3
1 and 32 are formed, and the bases are slidably supported by four guide shafts 28, which are vertically penetrating each other in the frame, and move in parallel to each other. You can do it. The figure shows the bearings 29,
29 and 30, 30 are fixed through, and the upper and lower side walls 26,
A guide shaft 28 supported by 27 is supported. A coil spring 40 is interposed between the intermediate bearings 29 and 30 of the guide shaft 28. The coil spring 40 has a compression dimension that supports the weight of the upper holding arm (4 in the figure) and causes no trouble even if the lower supporting arm (5 in the figure) rises and grips. I have it.

On the other hand, the operation of the holding arms 4 and 5 is performed by the drive unit E provided outside the upper wall 26 of the frame, and is supported by the forward and reverse rotation motors of the drive unit penetrating the upper and lower walls of the frame. Also, the shaft that loosely penetrates the base of the holding arm is rotated. Further, a small gear 39 having a tooth width elongated in the axial direction is fixed to substantially the center of the shaft. 38 is a bearing of this shaft and is attached to the lower wall 27. On the other hand, the large gear 33 meshing with the small gear 39 is fixed to a support shaft 34, and one end side of the support shaft 34 is supported by a bearing 37 attached to the base 32 of the holding arm 5 so as not to move in the axial direction. There is. Further, above the large gear 33 of the support shaft 34 (the base 31
The side) is configured as a screw shaft 35, which penetrates the base 31 of the holding arm 4 and is screwed to a female screw 36 non-rotatably attached to the base 31. Therefore, as shown in FIG. 3, when the small gear 39 rotates, the support shaft 34 and the screw shaft 35 rotate integrally through the large gear 33, and this rotation causes the base 31 of the holding arm 4 through the female screw 36. Moves to the base 32 side (grasping operation). When the pinion 39 is rotated in the opposite direction, the base 31
Is separated from the base portion 32, and the flat plate member which is gripped and inverted is opened. The clamping pressure of the clamping arms 4 and 5 is adjusted by a meter relay (not shown). It should be noted that although the drawing shows that the gripping and releasing of the holding arms 4 and 5 are operated by the gear and the screw shaft, they may be operated by pneumatic or hydraulic devices. Further, in the above-described gear and screw shaft opening / closing device, the tip end of the screw shaft 35 may collide with the upper wall 26 of the frame due to the thickness of the sandwiched flat plate member when the reversing device 13 pivots upward by 90 degrees or more. Therefore, a screw shaft passage hole is formed in the upper wall. Further, when the holding arm 4 descends and holds the flat plate-like member, a gap is formed between the bearings 29, 29 and the upper wall 26, and this gap is formed when the reversing device 13 turns 90 degrees or more. Since the guide shaft 28 is slid and packed by the force applied by the weights of the holding arms 4 and the flat plate-like member, two impacts parallel to the guide shaft 28 are provided in the frame in order to suppress the shock and vibration. Devices (shock absorbers) 41, 42 are provided. The one side 41 of the impacting device has its base attached to the upper wall 26 of the framework, and the base 31 of the holding arm 4 is loosely penetrated to lock the working side to the base 32 of the holding arm 5, while the other side The base of the impacting device 42 is attached to the lower wall 27 of the frame, the base 32 of the holding arm 5 is allowed to freely penetrate, and the operating side is locked to the base 31 of the holding arm 4.

On the other hand, the flat plate member gripped by the sandwiching arms 4 and 5 rotates while being gripped, and the side face of the flat plate member moves to support the swivel shaft 20 and a support wall supporting this shaft. Body 1
4,15 or the side edges of the support plates 16 and 17 may come into contact with each other to cause damage. (Not shown). As shown in FIG. 3, one end side of this guide shaft is planted on the base portion 32 side, and the other end side is supported by the base portion 31 so as to penetrate therethrough. An outer cylinder 44 is loosely inserted in the lower part of the guide shaft, and the height of the outer cylinder 44 is made lower than that of the swivel shaft 20, and the whole is formed of an elastic material or an elastic material is formed on the surface of the metal cylinder. Cover the cylinder.

On the other hand, transporting devices A and B by reversing flat plate members with different width dimensions
The reversing device placed on the moving table 12 in order to place it in the center of the
It is necessary to adjust the reverse operating position of 13. That is, the moving table 12
It is configured so that the reciprocating range of can be adjusted. H indicates the measurement setting device, which is provided at the lower part of the entrance side of the transport device B. And this measurement setting device H has a base 8
A support wall is attached to the lower part of the width direction center of the transfer devices A and B, and a control drive device F capable of forward and reverse rotation is provided on the side of the support wall in the transfer direction.
Support slidably. A pinion 54 attached to the motor output shaft end of the drive unit F is meshed with this long rack. Further, sensors 51 and 50 are attached to one end sides of the long racks 48 and 49, respectively, and these sensors adjust the engagement or attachment position of the racks so that they are equidistant from the pinion 54.

On the other hand, projecting pieces 52 and 53 (FIG. 2) that engage with the sensors 51 and 50 are provided on the side surface of the moving table 12, and the moving table 12 is stopped by the engagement of these sensors and the projecting pieces. Gripping, turning drive, and grip release operation.
The measurement setting device H is instructed to install a device for measuring the width dimension of the flat plate-shaped member in the transfer device A or the transfer device provided before it, and set the distance between the sensors 51 and 50 via the motor according to the command. It is supposed to do.

This reversing device is constructed as described above
The position of 12 is the side surface of the maximum width measured at right angles to the transfer direction of the flat plate member transferred with the center of the width of the transfer devices A and B placed substantially evenly, and the tubular body 44 of the guide shaft. The holding arms 4 and 5 are positioned between the conveyance devices while being opened while maintaining a sufficient space so as not to contact the outer periphery of the holding device. The surface of the sandwiching portion 7 of the sandwiching arm 5 on the lower side is positioned slightly lower than the surface line of the transporting devices A and B (FIG. 1). When the reversing device is opened by reversing operation, the reversing device 13 moves to the left side and opens and stands by. At this time, the holding arm 4 is on the lower side and the upper surface of the holding portion 6 is above the plane of the conveying device. Positioned similarly low. Therefore, a flat plate member that does not need to be turned over can be smoothly transported by keeping the holding arms 4 and 5 open, and can be used as a general transport device. In the case of a flat plate member that needs to be inverted, the distance between each sensor 50 and 51 is set to a dimension measured at right angles to the transfer direction of the flat plate member through the measurement setting device H in advance, and the moving table is moved. In the sensor drawing on the 12 side, do not activate 50, and when the movable table 12 moves to the opposite side, the sensor 50
You can switch between 51 and 51 respectively.

If an attempt is made to invert a flat plate-shaped member via the reversing device configured as described above, the member placed and transferred on the reversing devices A and B measures one half of its length regardless of the shape. It is measured by the receiving device 3 and the transport device is once stopped, so that the central portion of the member is positioned at the gripping portion of the holding arms 4 and 5. Simultaneously with this stop, the moving table 12 is moved by the drive unit D together with the holding arms 4 and 5 so as to come close to the side surface of the flat plate-like member, and the reversing device is brought into contact with the tubular body 44 of the guide shaft 43.
13 starts turning via the drive unit C. Then, the lower surface of the flat plate-shaped member that is in contact with the holding portion 7 of the lower holding arm 5 is the conveying device A,
When the upper holding arm 4 is lifted from the upper surface of B, the upper holding arm 4 is driven by the drive unit E.
Thus, the flat plate-shaped member can be accurately and stably gripped by an appropriate pressure by the sandwiching portions 6 and 7 facing each other. On the other hand, the movable table 12 continues to move as it is, and when the projecting piece 52 attached to the side surface of the movable table and the sensor 51 are engaged, the movable table 12 is temporarily stopped, and the inverted flat plate-shaped member is placed at the center of the width of the carrier. Place evenly. As a result, there is an effect that it can be accurately fed to the next step. Further, the reversing device 13 surely grips the flat plate-like member and continues to turn, and when turning 90 degrees or more, the holding arms 4 and 5 are both subjected to the action of the impacting devices 41 and 42 to quietly raise the upper wall 26 of the frame. Since it moves to the side, even a long flat plate-like member can be stably inverted.

Further, the reversing device 13 swivels to open the nipping arm 5 just before the lower surface and the upper surface of the conveying device are joined by the reversal of the flat plate member, so that a load more than the own weight of the flat plate member is not applied. , It can be placed on the carrier device gently. When the reversing device 13 turns 180 degrees, the moving table 12
Is located in the opposite direction, the holding arms 4 and 5 are opened and the inverted plate-shaped member is pulled out by the transport device, and the holding arms are left open to wait for the arrival of the next inverted plate-shaped member. Is.

In the reversing device of the present invention thus configured, the reversing operation can be repeatedly performed, and this operation is configured such that the object to be gripped is carefully pinched and is not damaged when turning, and further, the gripping portion. Is configured to be automatically measured and sandwiched so as to be the central portion of the flat plate-shaped member, so that the reversing work can be dramatically improved.

[Brief description of drawings]

FIG. 1 is a front view of this device. FIG. 2 is a right side view of FIG. 1 with some parts omitted. FIG. 3 is a partially enlarged cross-sectional view taken along the section line XX of FIG. A, B: Transport device. C, D, E, F: Drive part. G: Transport direction of the flat member. H: Measurement setting device. 1: Measuring roller. 2: Measuring device. 3: Measuring device 4,5: Clipping arm. 6,7: Clamping part. 8: Base. 9,10: Rail. 11: Bearing. 12: Mobile stand 13: Reversing device. 14,15: Support wall. 16,17: Support plate. 18,19: Bearing. 20: Swivel axis. 21: Large gear. 22: Small gear. 23: Weight. 24,25: Side wall. 26: Upper wall 27: Lower wall. 28: Guide shaft. 29,30: Bearing 31,32: Base of clamping arm. 33: Large gear. 34: axis. 35: Screw shaft. 36: Female screw. 37,38: Bearing. 39: Small gear. 40: Coil spring. 41, 42: Impact device 43: Guide shaft. 44: Cylindrical body. 45,46: Impact device. 47: A protruding piece. 48,49: Long rack. 50,51: Sensor 52,53: Projecting piece. 54: Pinion.

Claims (1)

[Claims] 1. A reversing device for reversing the front and back surfaces of a relatively flat plate-shaped member, which is processed on both sides individually, at an intermediate portion of the roller conveying device, and which sandwiches an upper surface line of the roller conveying device. A holding device for a flat plate member is configured by a holding arm having a gripping portion having a length substantially equal to the width dimension of the holding member and another holding arm which is configured to face the holding arm and can be moved away from the holding arm. The device measures the length of the plate-shaped member in the feed direction on the rollers of the feeding-side transfer device so that the center of the conveyed plate-shaped member is pinched, and sends half of that to the pinching part of the pinching device and stops. The holding device is configured to integrally rotate the two holding arms in a 180-degree fan-shape orthogonal to the carrying direction of the carrying device and to support the holding arms. Goes in the direction orthogonal to the transfer direction of the carrier. Configured to be movable, rotating device of the tabular member, characterized by being configured so as to be close pinching and spaced opening operation of the gripping arm at both ends position of the reciprocating movement.