JPH09165112A - Object holding device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To adjust to the size of coveying parts with accuracy by sliding one of two opposed object holding plates at a right angle to the opposed face, fixing the slid plate, and operating a slide-fixing mechanism by an operating bar disposed in a specified position in association with shifting along with a conveyor. SOLUTION: When a holding device 1 reaches the supply position of transport parts, in order to free a space between a holding wall 3a of an upper holding plate 3 and a holding wall 2a of a lower holding plate 2, a lock bar 25 is manually set in a release position. A setting bar 14 is then set into the article supply position, and the upper holding plate 3 is so set as to slide in relation to the lower holding plate 2 in conformity to the dimensions of the transported parts. The tip side of the setting bar 14 is pivotally supported, and the rear end is made shiftable in a travel direction and a right-angled direction and fixed matching to the space dimension. In the case of the dimensions of objects being changed object by object, drive mechanism 17 of the setting bar 14 is controlled by a program to shift the object holding device 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an object holding device, and more particularly, in conveyor transportation for transporting articles supplied on each belt in parallel with a plurality of belts, the size of articles conveyed by the belts is changed. Even in the case, the present invention relates to an object holding device capable of easily changing the size according to the size of the conveyed article.

[0002]

2. Description of the Related Art Conventionally, in an apparatus for conveying articles by arranging a plurality of two or three conveying belts adjacent to each other, two object holding plates facing each of the parallel belts are attached as a group. , For example, in the case of three belts, two belts on both sides are fixed by one holding plate, and the other belt is fixed to the central belt,
By adjusting the relative distance between the belts according to the width of the object to be conveyed and the distance between the holding plates, the holding distance of the article can be changed. The pair of holding plates is attached to the belt at equal intervals. (Practical application 4-52
(See No. 884, Japanese Utility Model Publication No. 6-16209)

[0003]

The above-mentioned conventional object holding device has a complicated structure and a high cost, and an error in the set dimension of each holding plate when the holding plate is fixed to the belt remains permanently. However, there is a problem in that the holding plate spacing is exactly the same as the size of the conveyed article, and the spacing is not constant, and the setting accuracy is reduced. The present invention solves the problems of the above conventional object holding device,
An object of the present invention is to provide an object holding device that can be simply and accurately adjusted to the size of a conveyed article.

[0004]

In order to achieve the above object, the object holding device of the present invention is provided with
Two object holding plates that face each other, a slide mechanism that slides one of the plates at a right angle to the facing surface, and a fixing mechanism that fixes the slid plate are used. Along with this, it is characterized in that it is operated by an operation bar provided at a predetermined position.

In the object holding apparatus of the present invention having the above-mentioned structure, when feeding a transfer object, one of the holding plates is slid and the distance between the holding plates is expanded, so that the feeding of the object is easy. . Further, the supplied object is held by both holding plates and is held by the fixing mechanism so as not to fall off during the transfer.

A second aspect of the present invention is provided with an object holding plate and a fixing mechanism for the holding plate in conveyer transportation, the object holding plate supports paired holding bands like scissors, and is always attached by a spring in the holding direction. It is characterized in that it is urged and provided with an expanding mechanism thereof, and that the fixing mechanism and the expanding mechanism are operated by an operation bar arranged at a predetermined position as the fixing mechanism and the expanding mechanism move together with the conveyor.

In the object holding apparatus of the present invention having the above structure, the object holding plate can be held at a central position (hereinafter referred to as centering) by sandwiching the object holding plate with a pair of holding bands. .

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of an object holding device of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective explanatory view showing the operation of the first embodiment of the present invention.
Are installed on a conveyor C that conveys articles at predetermined equal intervals. The conveyor C may be a belt type or a chain type, and the chain type is shown in the illustrated embodiment.

The object holding device 1 includes a lower holding plate 2, an upper holding plate 3, a slide mechanism 4 for sliding the upper holding plate 3 on the lower holding plate in the left-right direction (moving direction), and a sliding position. It is composed of a fixing mechanism 5. The lower surface of the lower holding plate 2 is flat, and an article to be conveyed by a conveyor is placed thereon, one end of which is vertically formed to form a holding wall 2a for holding the side surface of the article. It is fixed and has an elongated groove 6 formed in the central portion in the longitudinal direction thereof, which is a structure convenient for sliding the upper holding plate 3.

The upper holding plate 3 is arranged on the lower holding plate 2 so that the upper holding plate 2 can be slid on the lower holding plate 2 left and right (the traveling direction of conveyed articles, that is, the traveling direction of the conveyor C). One end is formed with a holding wall 3a that stands upright to face the holding wall 2a formed on the upper holding plate, and has a length protruding from the upper holding plate 3 at the lower part and a convex cross section. A guide member 7 is attached, and a support member 8 having a dovetail groove formed therein for inserting and supporting the guide piece 7 on the lower surface of the lower holding plate 2.
Install.

The slide mechanism 4 is composed of a fulcrum bar 10 attached to the lower holding plate 2 and an L-shaped bar 11 which rotates about this as a fulcrum. One end of the L-shaped bar 11 has a long hole 1
2 is opened, and a slide rod 13 protruding from the lower surface of the upper holding plate 3 is fitted therein, and the upper holding plate 3 is slid in the traveling direction by the rotation of the L-shaped bar 11, that is, on the holding wall 2a of the lower holding plate 2. The holding wall 3a of the upper holding plate 3 is moved in the front-back direction so as to face each other. The other end of the L-shaped bar 11 is attached with a set roller 15 which is installed opposite to a setting bar 14 which is adjustably attached in parallel with the conveyor C.
The slide position of the upper holding plate 3 is determined by adjusting the mounting position of 4. 16 is a holding wall 3 of the upper holding plate 3 at all times
A spring for urging a toward the holding wall 2a side of the lower holding plate 2 is shown.

The fixing mechanism 5 rotates with a rack 20 formed on one side of the guide piece 7 mounted below the upper holding plate 3 and a fulcrum rod 21 fixedly mounted on the lower holding plate 2 as a fulcrum. An L-shaped bar 22; a lock tooth 23 attached to one end of the L-shaped bar 22 so as to face the rack 20;
It is composed of a lock roller 24 attached to the other end of the shape bar 22, and the lock roller 24 is attached to the conveyor main body and is in contact with a lock bar 25 which can be freely taken in and out. Select the position by moving the lock bar in and out (manual), and
The upper bar 3 is locked or released by the rotation of the shaped bar 22 and the locking teeth 23 biting into or out of the rack 20. Note that the L-shaped bar 22 is constantly pulled by the spring 26, and when the lock roller 24 is pushed away by the lock bar 25, the lock teeth 23 are separated from the rack 20 against the spring 26 and the upper holding plate 3 of Although the shift is possible, when the lock roller 24 is separated from the lock bar 25, the lock roller 24 is automatically locked by the spring 26 to hold the upper holding plate 3 in the locked state.

Next, the operation of the device of the present invention will be described. (1) First, when the holding device 1 reaches the position for supplying the transportation article, the lock bar 25 is manually operated so that the holding wall 3a of the upper holding plate 3 and the holding wall 2a of the lower holding plate 2 can be freely spaced. Set to open position.

(2) Next, the setting bar 14 is similarly set at the article supply position, and the upper holding plate 3 is set so as to slide with respect to the lower holding plate 2 in accordance with the size of the transported article. That is, the setting bar 14 is set so that the rotation angle of the L-shaped bar 11 by the setting bar 14 is adjusted in order to open the space between the holding wall 2a of the lower holding plate 2 and the holding wall 3a of the upper holding plate 3 to a required distance. To do. In this case, the front end side of the setting bar 14 is pivotally supported, and the rear end of the setting bar 14 can be moved in the direction perpendicular to the traveling direction, and the setting bar 14 is fixed in accordance with the above-mentioned interval dimension. At this time, when the size of each object changes, the driving mechanism 17 of the setting bar 14
Is controlled by a program. Alternatively, when the object is constant, the width of the setting bar itself may be selected.

(3) Then, the conveyor is rotated to move the object holding device 1.

(4) In the object holding device 1, first, the lock roller 24 contacts the lock bar 25. As a result, the L-shaped bar 22 rotates, the lock teeth 23 move away from the rack 20, and the upper holding plate 3 is free to move.

(5) Then, the object holding device 1 is further advanced by driving the conveyor C, and the set roller 15 is brought into contact with the setting bar 14, whereby the L-shaped lever 11 is rotated and the slide bar 13 is advanced by the conveyor ( Or vice versa)
Slide in the direction. As a result, the lower holding plate 2 and the upper holding plate 3 are set at a prescribed distance. After the set roller 15 has passed the setting bar 14 after the object is supplied, the upper holding plate 3 moves the supplied object in the holding direction by the spring 16.

The conveyor C further advances, and the lock roller 2
When 4 passes through the lock bar 25, the lock teeth 23 of the L-shaped bar 22 are engaged with the rack 20 by the spring 27, so that the conveyor advances while maintaining the set interval, and the interval is not deviated. Absent.

11 and 12 show a second embodiment. In this embodiment, instead of the structure in which the transportation article is gripped by the lower holding plate 2 and the upper holding plate 3 in the front-rear direction of the traveling direction, the holding pieces 31, 3 facing the V-shape as the object holding device 30 are used.
2, the base end side of each of which is supported by shafts 31S and 32S, and the tip end side has a fixing claw 33 for contacting at least two different points of the article to perform positioning when sandwiching the article. 34 is integrally provided.

Further, the shafts 31S and 32S supporting the base ends of the sandwiching pieces 31 and 32 have pinions 3 having the same number of teeth and the same diameter, respectively.
5 and 36 are fixed, the rack 37 is inserted between the pinions 35 and 36 facing each other, the both pinions 35 and 36 and the rack 37 are meshed with each other, and the rack 37 is moved and pinched via the pinions 35 and 36. The tip ends of the pieces 31 and 32 are swung, that is, opened and closed around the shafts 31S and 32S.

Along the inner surface of the sandwiching pieces 31, 32,
Elastic or flexible holding bands 38 and 39 in the form of cords or strips are arranged so as to face each other.
The tip of 39 is fixed to the tips of the sandwiching pieces 31, 32, and the other end is attached with a tension spring 40 so as to always apply a predetermined tension to the holding band. That is, the holding bands 38 and 39 are stretched like scissors.

A tension spring 41 is attached between the rear end of the rack 37 and the fixed side, and the rack 37 is pulled by the tension of this spring to close the sandwiching pieces 31, 32 via the pinions 35, 36. Eggplant The reference numeral 42 designates fixing claws 32 and 33 and a pressing claw for supporting the article at three points.

Reference numeral 50 denotes a holding piece expanding mechanism for moving the rack 37 against the tension spring 40, and a support shaft 52 rotatably attached through a base 51 attached to the conveyor C.
One lever 54 is provided above the L-shaped lever, and the other lever 55 is attached below the base in a substantially L-shape. The tip of the upper lever 54 is inserted into the groove 56 formed in the rack 37, and the guide roller 57 is attached to the tip of the lower lever 55. This guide roller 57 swings by a setting bar 58 (only the one provided at the article supply position is shown) installed at the article supply / holding position and the article release position to push out the rack 36, or Pull down.

Reference numeral 60 designates a fixing mechanism, in which one upper lever 63 is provided above the support shaft 61 rotatably mounted through the base 51 and the other lower lever 64 is provided below the base substantially at L level.
An L-shaped lever 62 mounted in a V shape is provided. A lock tooth 65 meshing with the rack 37 is attached to the tip of the upper lever 63, and a lock roller 66 is attached to the tip of the lower lever 64. The lock roller 66 is rocked by a lock bar 67 provided in parallel with the setting bar 58 so that the lock teeth 65 are separated from the meshing position with respect to the rack 37. 68 is a lock tooth 65
Shows a spring that constantly urges in the meshing direction of the rack 37. The fixing mechanism 60 has the same structure as the fixing mechanism 5 of the first embodiment, and detailed description thereof will be omitted.

In the apparatus configured as described above, in order to hold an article, when the moving body 20 moves to reach the article supply / holding position, first the lock bar 67 causes the L-shaped lever 62 to move.
Swings around the support shaft 61 and separates the lock teeth 65 from the rack 37 against the spring 68. Then, by pushing the guide roller 57 with the setting bar 58, the L-shaped lever 53 swings to push out the rack 37.
As a result, both gripping pieces 31 and 32 expand to the size required for receiving the object G and move forward.

When the acceptance of the object G is completed, the guide roller 57 passes through the setting bar 58, and both gripping pieces 3
1, 32 are urged in the contracting direction by the tension spring 41,
The object G is sandwiched. At this time, the object G is held while being centered by both gripping pieces and the holding bands 38 and 39. Then, by further advancing, the lock roller 6
After passing 6 and the lock bar 67, the L-shaped lever 62 moves backward by the spring 68, and the lock teeth 65 mesh with the rack 37 to fix the rack 37.

[0027]

The object holding device of the present invention has the following effects. (1) The interval accuracy of the holding plates to be set is high. (2) Since it is fixed and held by the fixing mechanism after being held by the holding plate, there is no risk of falling off during transfer. (3) In addition, the expansion of the gap between the holding plates for housing these objects and the fixing after gripping are automatically performed by running, so the operation is reliable. Further, according to the object holding device of claim 2 of the present invention,
Even when the shape of the article to be held cannot be processed by the holding plate (because it is a flat surface), the article can be held in the centered state.

[Brief description of the drawings]

FIG. 1 is a perspective view for explaining the operation of a first embodiment of an object holding device of the present invention.

FIG. 2 is an overall plan view of the first embodiment of the object holding device of the present invention.

FIG. 3 is a front view of FIG.

FIG. 4 is a left side view of FIG.

FIG. 5 is a plan view of a lower holding plate.

FIG. 6 is a front view of FIG.

FIG. 7 is a left side view of FIG.

FIG. 8 is a plan view of an upper holding plate.

FIG. 9 is a front view of FIG.

FIG. 10 is a left side view of FIG.

FIG. 11 is a plan view of a second embodiment of the present invention.

FIG. 12 is a front view of FIG. 11;

[Explanation of symbols]

 1 Object Holding Device 2 Lower Holding Plate 3 Upper Holding Plate 4 Slide Mechanism 5 Fixing Mechanism 14 Setting Bar 25 Lock Bar 30 Object Holding Device 38 Holding Band 39 Holding Band 50 Expanding Mechanism 60 Fixing Mechanism C Conveyor

Claims (2)

[Claims] 1. A conveyor mechanism comprising two object holding plates facing each other, a slide mechanism for sliding one of the object holding plates at a right angle to the facing surface, and a fixing mechanism for fixing the slid plate. The object holding device, wherein the fixing mechanism is operated by an operation bar arranged at a predetermined position as the fixing mechanism moves together with the conveyor. 2. In conveyer transportation, an object holding plate and a fixing mechanism for the holding plate are provided, and the object holding plate supports paired holding bands in a scissor shape, and constantly urges the holding band in the holding direction with a spring. An object holding device comprising an expanding mechanism, wherein the fixing mechanism and the expanding mechanism are operated by an operation bar arranged at a predetermined position as the fixing mechanism and the expanding mechanism move together with the conveyor.