JPH01275330A - Transport piling device for cylindrical part of flexible material - Google Patents

Abstract

PURPOSE: To reliably grip an article, and to excellently stack the article by arranging a gripping means having an upper jaw and a lower jaw for sandwiching/gripping the edge of a part. CONSTITUTION: When a sent-out article is placed on a supply stand A, the article is advanced up to butting against a stopping projection plate 7 on the front end of a stopping rail 6 by an endless ribbon belt 3. Then, a detecting means actuates a piston cylinder device 9, and rotates the stopping projection plate 7 downward to open a lower jaw 12 of a gripping means 10 already existing in a standby position. When the gripping lower jaw 12 sandwiches/grips the edge of a part by rotating toward an upper jaw 11 fixed from below, gripping operation finishes. The gripping means 10 pulls an article up to a prescribed position along an article guide means 14, and releases the article there. After stacking the prescribed number of articles, a belt conveyor moves the articles up to a taking-out place C.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to an apparatus for conveying and stacking parts of flexible material which are led in flat form from processing means, in particular in the preamble of the claims. It relates to a device for transporting and stacking parts of flexible materials of the type described.

[Conventional technology]

A device for transferring sheet metal panels supplied in the form of blanks onto a workbench from the workbench onto a stacking table is known from British Patent No. 1.347.988.

In this device, in order to allow sufficient freedom of movement of the sheet metal panel on the workbench, when the moving means comes to a receiving position at the end of its track near the workbench, the gripping means of the gripping means Clamping jaws rotate a portion (grip) backwards about a horizontal axis. In order to grip (grasp) the edge of the thin metal panel, the upper jaw for gripping is raised and the gripping part is rotated forward, and the lower jaw, which is firmly connected to the gripping part, is placed under the thin metal panel. I try to grab the sides. After closing the gripping jaws by means of a hydraulic piston-cylinder arrangement, the two gripping means are advanced along longitudinal guide means above the stacking platform.

When the gripping means reach the correct position for stacking the sheet metal panels side by side, the gripping members simultaneously pivot rearward about said horizontal axis to open the gripping jaws and release the sheet metal panels. .

The above moving means is driven by a motor fixed to a carriage of the moving means on which the gripping means is mounted.

A pinion attached to the shaft of the motor rotates along a rack disposed over the range of movement of the device.

[Problem to be solved by the invention]

The above-described device cannot be directly applied to a transport and stacking device for flat-lying tubular parts of flexible material, such as bags, which are delivered from one or more sewing devices. More specifically, the cylindrical part of flexible material has its protruding front edge hanging down when the gripping means approaches the receiving position, and this is pushed away by the lower jaw into the opening between the two jaws. If you try to grasp the underside of the front edge of such a part with the fixed gripping jaws,
It's not going well. On the other hand, if the material is flexible, it is advantageous during stacking because when the part is released from the gripping means and slides out of the lower jaw, there is very little risk that the part will dislodge from what is already stacked.

It is therefore an object of the present invention to improve the known device described above so that it is suitable for the above-mentioned purpose.

SUMMARY OF THE INVENTION The present invention provides a method for carrying flat-lying cylindrical parts, such as bags, made by one or more sewing means, when the top jaw is placed on a feeding table. Provided that the upper jaw is at approximately the same level (height) as the upper side of the part and has a tip for insertion, the upper jaw is firmly fixed to the moving means, and the lower jaw can be slammed toward the upper jaw. . With this configuration, the drawbacks of the above-mentioned known devices are improved.

It is known that a sewing machine is provided with a gripping means for carrying the sewing workpieces, and the workpieces coming out of the sewing machine are directly grasped by the corners and randomly dropped into a collection box. In this case, however, an inclined surface consisting of an upwardly curved stub made of sheet metal is provided on the sewing table, onto which the workpiece slides during sewing. The gripping means, which likewise have a fixed but resilient upper jaw, are held in such a position that the sewn workpiece, which slides onto the sloped surface during sewing, comes under the upper jaw on its own. At that time, the rotatable lower jaw is moved forward by a live device. In order to separate the sewing workpiece, the workpiece is first moved at high speed, and then the thread connecting the finished workpiece and the beginning of the next workpiece hangs down in a loop shape, allowing the thread to be cut. This is because it is necessary to move slowly. Such devices are unsuitable for stacking relatively large items such as bags.

- In terms of boat fishing, it may be considered known to provide feeding or stacking platforms with rollers or conveyor belts. The present invention uses modifications of these in order to achieve the object.

〔Example〕

Hereinafter, the present invention will be explained in more detail with reference to the illustrated embodiments.

Fig. 1 is a side view showing an outline of an embodiment of the present invention, Fig. 2 is a plan view showing a part of the device shown in Fig. 1, and Fig. 3 is a partial cross section showing the main part of the device shown in Fig. 1. It is an enlarged side view.

The conveying and stacking device of the present invention generally consists of three parts: a supply table A, a moving means B, and a stacking and unloading table C.

Two rollers (1), (2
), and a plurality of endless ribbon belts (3) passing through it are provided at regular intervals.

One roller (2) is connected to a motor (4) and a toothed belt (
5). Following the roller (2) is the stop rail (
6), the surface of which is slightly lower than the surface of the tubular part, such as a bag, lying on the ribbon belt (3). Individual parts fed into the supply table A by a sewing device (not shown) are advanced over this stop rail (6) to a stop protrusion plate (7) at its front end (FIG. 3). When the front end of the advancing part reaches the stop protrusion plate (7),
The driving means for the roller (2) is stopped by mechanical, optical or capacitive sensing means (not shown). The piston-cylinder device (9) is shown as an example of a means for moving downwardly the stop protrusion plate (7) rotatably mounted on a shaft (8) parallel to the roller (2).

However, it is of course possible to use other suitable means for that purpose.

The moving means B that transports the parts from the supply table A to the stacking and take-out table C, and drops and stacks the parts there, has a pair of gripping means 10) disposed apart from each other in a direction perpendicular to the moving direction. and each gripping means has a guiding means (
14) It has a casing (13) that can be slid back and forth on it. Therefore, two guiding means (14) are provided;
The gripping means is adapted to grip the front edge of the advanced part. The two gripping means (10) can be driven by a piston-cylinder arrangement, not shown, in which case a piston (piston rod or cylinder) is connected to the casing (13) of one of the gripping means (10). In this embodiment, as shown in FIGS. 2 and 3, toothed belt pulleys (15) and (16) are provided at both ends of the guide means (14), and the toothed belt (
17) and insert it into the corresponding casing of the gripping means (
13). One belt pulley (18) on each shaft of a toothed belt pulley (16)
are fitted coaxially, and another toothed belt (
17') is run so that the two gripping means are connected to each other and move synchronously. The gripping means (10) may be connected by a non-slip driving means such as a toothed belt (17) or (17').
Other reversible drives may also be used. Guidance means (14)
are toothed belt pulleys (15), (16), (
18) and gripping means (10) and toothed belt (1
7) Slidably mounted on a crossbar (19) which crosses the width of the platform, allowing the movement means to be adapted to parts of different sizes.

For this purpose, it is necessary to provide another tension roller for the toothed belt (17').

The gripping means (10) has an upper gripping jaw (11) fixed facing towards the stop rail (6), which jaw guides the front edge of the part towards the front and brings it into the opening and closing range of the jaw. It has an upwardly sloping insertion tip (11') for sliding. The rotatable lower jaw (12) is connected to the fixed upper jaw (12).
11) of the casing (13) of the gripping means (10).
) is adapted to rotate around an axis (12') provided at the center. In order to rotate the lower jaw (12), a rotating means (not shown) such as a cam or a sliding guide is provided, and thereby,
When the gripping means reaches the gripping position, a gripping mechanism operates to grip the edge of the component. To make this possible, the stop rail (6) is provided with a groove or recess (20) through which the lower jaw (12) can pass, and in this part the gripping means (10) is stopped by both jaws (11), (12). Make it possible to grasp the parts that have advanced to the projection plate (7).

The operation of this device is as follows.

When a cylindrical part such as a bag sent out from a sewing device (not shown) is placed on the supply table A, the part is moved by the endless ribbon belt (3) to the stop protrusion plate (7) at the front end of the stop rail (6). ) until you reach it.

At this time, the parts are aligned parallel to the stop rail (6). Then, the detection means (not shown) operates the piston/silling device (9) to rotate the stop protrusion plate (7) downward and immediately open the lower jaw (12) of the gripping means (10) already in the standby position. . By suitable actuating means, the gripping operation is completed when the lower gripping jaw (12) is pivoted from below towards the fixed upper jaw (11) and grips the edge of the part. The gripping means (10) pull the part along the guide means (14) to a predetermined position where it is released. This is repeated until a predetermined number of parts are stacked or the parts reach a predetermined height, after which the belt conveyor moves the stacked parts onto the stacking and unloading table C to the removal location.

The ribbon belt (3) of supply table A does not need to be operated intermittently. This is because this type of part also has some hardness and the surface of the ribbon belt is appropriately smooth, so the part will not swell up against the stop protrusion plate (7), and the stop protrusion plate (7) will not bulge out. By appropriately adjusting the downward rotation of (7) and the advancement of the gripping means to the gripping position, even if the ribbon belt (3) is moved continuously, the unloading can be performed reliably.

The gripping means (10) grips the part and the guiding means (14)
, and the parts move above the stacking and taking-out table C. The stacking and take-out table C is located at a lower position than the supply table A, and has a support plate (30) and two end rollers (31).
, (32) Conveyor ribbon passing over (33)
has. One of the end rollers (31), (32) is provided with a drive means (34) for intermittent operation. The parts are guided by means of guidance (14) by means of toothed belts (1'7).
They are placed one after another on the stacking and unloading platform C by means of a gripping means (10) that slides along the ridges until reaching a stop member (not shown). In that case, the lower jaw (12) is opened using a working means whose position can be adjusted appropriately, and the rear part is already attached to the stop rail (6).
), the parts hanging on the table C are placed on top of the parts placed in front and stacked. The lower jaw (12) opens at 90 degrees or more so as not to prevent parts from falling.

The gripping means (10-13) are arranged to operate alternately in pairs, i.e. each guide means (14) slides another gripping means (10a-13a) (FIGS. 2 and 3). It is preferable to double the guide means (14a) so that it is adjacent to the other guide means (14a). In this case, the other gripping means (10a-13a) are connected to other opposing parallel parts of the toothed belt (17), and the two pairs of gripping means (10-1
3) and (10a to 13a) are made to move in opposite directions.

In this connection, when the movable lower jaw (12), (12a) is opened, it must be rotated approximately 1800 times so that while its gripping means advances into the gripping position, the opened lower jaw moves against the gripping means of the other pair. It is necessary to avoid colliding with the edges of the parts that are being gripped.

A predetermined number of parts are held on the stacking and take-out table C by the gripping means (10)
, (10a), the drive means (3
The conveyor ribbon (33) actuated by 4) moves these parts until they pass the rear end of the moving means B and can be easily removed from the conveyor ribbon (33).

If desired, the drive means (34) may be operated intermittently so that parts of the parts placed during operation of the drive means overlap like scales.

The present invention is not limited to the specific examples described above, and details may be changed within the scope of the claims. For example, the stop projection plate (7) may slide up and down instead of rotating.

In addition, the stop protrusion plate (7) has a recess (
20) projecting upwardly from the stop rails, thereby supporting the bottoms of these recesses, the drive means (4) in the feeding table A are connected to the endless ribbon belt (3).
) is being continuously advanced after the stop protrusion plate (7) has been lowered, the advanced parts are in the recess (20) of the stop rail (6).
) It is also possible to arrange the front end of the part to be sufficiently supported until it is gripped by both jaws in the area between the two jaws.

[Brief explanation of the drawing]

Fig. 1 is a side view showing an outline of an embodiment of the present invention, Fig. 2 is a sectional view showing a part of the device shown in Fig. 1, and Fig. 3 is a partial sectional view showing the main part of the device shown in Fig. 1. It is an enlarged side view. Note that the reference numerals in the drawings are shown in addition to the corresponding constituent elements in the claims, and therefore redundant description will be omitted. However, such additional notes are not intended to limit the present invention to the illustrated embodiments, but are intended to aid understanding of the present invention.

Claims (1)

[Claims] 1. An apparatus for transporting and stacking cylindrical parts of flexible material led in a flat form from a processing means, comprising a supply table and a subsequent transport and stacking means, The stacking means has a pair of separately arranged gripping means slidable in the longitudinal direction of the table, the gripping means gripping the parts lying on the supply table by the edges thereof. A moving means is provided, comprising an upper jaw and a lower jaw, for moving the pair of gripping means synchronously along each guide means in the longitudinal direction, and a stacking and unloading table is provided at a lower position following the supplying table. wherein the upper jaw (11, 11a) is located at approximately the same height as the component placed on the supply table (A) and is inclined upwardly for inserting the edge of the component; Tip (11', 11'
a), and the moving body (1) of the moving means (15 to 18)
7) A transporting and stacking device for cylindrical parts made of flexible material, characterized in that the lower jaw (12, 12a) is configured to open and close with respect to the upper jaw. 2. Device according to claim 1, characterized in that, at the end of the feed stage (A) in the form of a belt conveyor, a downwardly displaceable stop plate (7) is provided. 3. Device according to claim 1, characterized in that the stacking and unloading table (C) is constructed in the form of a known belt conveyor (30-33). 4. Device according to claim 1, characterized in that the means (4) for driving the conveyor belt (3) of the feed platform (A) are of the continuous operating type. 5. A stop rail (6) is provided directly following the conveyor belt (3) of the supply platform (A), and the stop protrusion plate (7) movable downwardly is provided adjacent to the rail. 2. The device according to claim 1, characterized in that: 6. Device according to claim 5, characterized in that the stop rail (6) has a recess (20) through which the movable gripping jaws (12) of the gripping means (10) can pass. 7. The gripping means (10), its guiding means (14) and its moving means (15 to 18) are adjustable in position in a direction perpendicular to the supply direction of the part in order to match the dimensions of the part. 7. A device according to any one of claims 1 to 6. 8. Each drive means for the pair of gripping means (10) is provided by a toothed belt pulley (15, 16) provided at each end of the longitudinal guide means (14) and a drive means passing through these pulleys. It has an endless toothed belt (17),
One gripping means (10) is connected to said belt in each case, and coaxially with one (16) of said toothed pulleys (15, 16) is provided another toothed belt pulley (18), on which Claim characterized in that another toothed belt (17') is threaded through, which belt connects the two drive means of a pair of gripping means (10) to each other for synchronous movement of said gripping means. The device according to items 1 and 7. 9. Another gripping means (10a) each slidable on its own guide means (14a) is attached to said toothed belt (1).
7) and the two gripping means (10
, 10a) are slidable in mutually opposite directions. 10. Claims 1 and 7, characterized in that the driving means for the gripping means (10, 10a) are constituted by a piston-cylinder device, which device simultaneously constitutes the guide means (14) for one of the gripping means. 10. The device according to any one of 8 and 9. 11. The stop protrusion plate (7), which is movable downward, is rotatably mounted around a shaft (8) located at a lower position than the supply table (A), and for its operation, a piston-cylinder device ( 3. The device according to claim 2, further comprising: 9).