JPH0331123A - Elevator device for picking up cloth of uneven thickness - Google Patents

Abstract

PURPOSE:To always maintain the uppermost cuff cloth horizontal against a pick-up mechanism for stable supply by making a bottom plate into a swingable table having sufficient narrow length compared with the length of supplied cloth, always supporting the swingable table horizontally and elastically, and providing the table swingable in the squarely crossing direction to the lengthwise direction. CONSTITUTION:When a swingable table 20 is elevated, the construction supporting cuff clothes on both sides of the swingable table 20 does not exist, the both sides of the clothes are hung down and become lower than the center part. Hereby, when the swingable table 20 is elevated and the upper end of the piled cuff clothes abuts with the under face of a pick-up device 2, higher position side is pressed, the swingable table 20 is rotationally moved centering around a shaft 19 in the squarely crossing direction to the lengthwise direction against elasticity of a spring 24 supporting the table horizontal, and the center part of the uppermost cuff cloth is closely contacted with the under face of the pick-up device 2. Consequently, even if it is accumulation of the cuff cloth of uneven thickness, a horizontal posture is formed at the delivery position, and the uppermost sheet is surely picked up with the pick-up device 2.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to automatic sewing technology, and also relates to an elevator device for picking up fabrics of variable thickness for supplying glass fabrics whose peripheral edges have been sewn to the next sewing machine. [Prior Art] Conventionally, a glass cloth pickup elevator device as shown in FIG. 8 has been used to supply a glass cloth a whose peripheral edge has been sewn as shown in FIG. 9 to the next sewing device. The lifting bottom plate 51 of the box-shaped stocker 50 is raised and lowered (arrow Di), and the topmost piece of glass cloth a, a... stacked on the lifting bottom plate 51 at the time of raising is delivered to a known pickup mechanism 52, A sewing machine with a buttonhole or a buttonhole is designed to be supplied to the next sewing process such as a sewing machine.

[Problem to be solved by the invention]

However, in general, the glass cloth a is made by layering a glass outer material A2 and a glass lining A3 on both sides of an interlining material A1, and folding back the periphery on three sides and sewing the edges b, so that the stocker 50
When a large number of glass cloths a are piled up on the bottom plate 51, the finished thickness of the folded portion of the glass cloth a becomes thicker as shown in FIG. , as shown in Fig. 8, point A is the highest and decreases in the order of B → C → 2, and the height is not constant. This becomes more noticeable as the number of stacked glass cloths a increases, and even if the elevating bottom plate 51 is raised and the pick-up mechanism 52 attempts to grip the uppermost glass cloth a, the top surface is not kept horizontal. The problem was that malfunctions frequently occurred.

The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide an elevator device for picking up irregularly thick cloth, which can constantly maintain the topmost glass cloth horizontally with respect to the pickup mechanism, and can stably supply the glass cloth. This is the purpose.

[Means to solve the problem]

The elevator device for picking up fabrics of variable thickness according to the present invention lifts and lowers the bottom of a storage section capable of accommodating the fabric to be supplied via an elevating drive mechanism as appropriate, and partially stacks glass of different thickness on a bottom plate. In an elevator device that controls the raising and lowering of cloth to be supplied and supplies the cloth one by one to a pick-up device configured above the device, the bottom plate is a rocking table whose length is sufficiently narrower than the length of the cloth to be supplied, and the rocking table is provided. The main feature is that the shaft is always elastically supported horizontally and pivoted so as to be swingable in a direction perpendicular to the length.

[Effect]

According to the above configuration, since the bottom plate on which the glass cloth is piled up is a rocking table whose length is sufficiently narrower than the length of the supplied cloth, when the rocking table is raised, the structure supports the glass cloth on both sides of the lifting table. , and both sides sag and become lower than the center. When the oscillating table is raised by the elevating drive mechanism and the upper end of the stacked glass cloth comes into contact with the lower surface of the pickup device.

The high position side is pressed, and the rocking table is supported horizontally and rotates around the pivot axis in a direction perpendicular to the length, against the elasticity of the rocking table.
The center portion of the top glass cloth is in close contact with the bottom surface of the pickup device. Therefore, even if glass cloth of uneven thickness is piled up, the receiver forms a horizontal position at the transfer position, and the pick-up device can reliably pick up the top piece. become.

〔Example〕

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of an elevator apparatus for picking up irregularly thick fabrics according to the present invention will be described below with reference to FIGS. 1 and 2.

Reference numeral 1 designates an elevator device of the present invention which is fixedly installed below the receiving position of the pickup device 2. The elevator device 1 includes a back plate 3, side plates 4, 4, and a bottom plate 5 to form a rectangular glass cloth storage section 6, and has a front door 8 made of transparent hard synthetic resin that can be opened and closed via a hinge 7. The structure is covered with An elevating guide rail 10 is vertically fixed to the back plate 3 at the rear of the slit 9 formed in the center, and an elevating platform 11 is attached to the elevating guide rail 10.
It is pivoted so that it can be raised and lowered with respect to 0. Reference numeral 12 is a pulse motor fixed to the lower surface of the bottom plate 5, and a belt pulley 1 is attached to a drive shaft protruding from both ends of the pulse motor 12.
Timing belts 15 and 15 are respectively mounted between pulleys 14 and 14 which are mounted on the upper end of the back plate 3.
．． 15 is installed in a winding manner, and both timing belts 15 and 15 rotate synchronously. The branch rod parts 16, 16 protruding on both sides of the lifting platform 11 are fixed to the timing belts 15, 15, respectively, and the lifting platform 11 can be moved up and down along the lifting guide rail 10 (arrow D2). Become. A support base 17 protruding forward from the lifting base 11 protrudes from the slit 9 into the glass accommodating portion 6, and is connected to the rocking base 20 via a rotating shaft 19 mounted on bearings 18, 18 protruding from the upper surface on both sides. The rocking table 20 has a regulating protrusion 2 formed at the rear end of the rocking table 20.
2 comes into contact with the engagement hole 23 formed in the lifting table 11, prevents the swinging table 20 from rotating in the direction of arrow D3 from the horizontal position, restricts the swinging range, and also Support stand 1
7 is tensionally and elastically biased via a coil spring 24 so that the rocking table 20 maintains a horizontal posture.

Further, reference numeral 25 denotes a bell adjustment stand formed on both sides of the bottom plate 5, which constitutes a heavy loading surface for glass cloth a that is approximately at the same level as the top surface of the rocking table 20 when the lifting table 11 is lowered. Become.

Although not shown in detail, the pickup device 2 includes a cloth receiving plate 3 on which a known suction type gripping means 33 and a cloth sensor 34 are fixedly attached.
5, for example, as shown in FIG.
0 and a button are arranged on a machine base 43 located at the front end of a glass conveying device 42 of an automatic sewing machine equipped with a sewing machine 41, and an elevator device 1 is arranged under a pickup device 2 on the front of the machine base 1. It is located and consists of.

The operation of the elevator system 1 will be explained with reference to FIGS. 4 to 7.

(1) FIG. 4 shows a state in which a large number of glass cloths a with sewn edges on three sides shown in FIG. Since the stacked glass cloth a is configured to have a surface on which the glass cloths a are stacked at approximately the same level as the adjustment table 25, the surface of the highest layered glass cloth a has the highest point A, and → C → 2 is the lowest order.

(2) From this state, as shown in FIG. 5, when the pulse motor 12 is driven and the lifting platform 11 is raised via the pulleys 14, 14 and the timing belt 15, 15, the glass cloth is placed on both sides of the lifting platform 11. Since there is no longer a structure to support a, both sides of the stack hang down, and the structure and mouth, which were higher than the center, are eliminated. At this time, as shown in FIG.
Because it is held horizontally by the elasticity of part 4, the structural part is in a higher position than the second part.

(3) When the upper end of the glass cloth a piled up by the lifting table 11 comes into contact with the lower surface of the cloth receiving plate 35 of the pickup device 2, the high position side (c) is pressed, and the rocking table 20 is moved by the coil spring 24. Arrow D6 is rotated around the rotation axis 19 against elasticity.
As shown in FIG. 7, the center portion of the uppermost glass cloth a comes into close contact with the cloth receiving plate 35.

Therefore, if the cloth gripping means 33, which is a part of the cloth receiving plate 35, is operated in accordance with the sensing signal from the cloth sensor 34, only the topmost piece of glass cloth a can be surely picked up.

The glass cloth a picked up by the cloth gripping means 33 is automatically supplied to a sewing machine 40 or a button sewing machine 41 via a pickup device 2 and a glass conveyance device 42.

In the above embodiments, the present invention has been described as a glass cloth supply device, but the present invention can be applied to a device for supplying cloth materials having partially different thicknesses by stacking and supplying them, by simply changing the planar shape of the stocker. Needless to say, it is something that can be implemented.

〔Effect of the invention〕

As described above, the elevator device for picking up fabrics of variable thickness according to the present invention has a posture when feeding heavily loaded fabric materials such as glass fabrics with partially different thicknesses to the pickup device one by one. It has the characteristics that it is possible to control and be in close contact with the pickup device, and that reliable receiving and delivery can be guaranteed, and the effects after implementation of the present invention are extremely large.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing an embodiment of an elevator device for picking up irregularly thick fabrics according to the present invention, FIG. 2 is a perspective view showing the drive mechanism of the device with the storage case removed, and FIG. A perspective view showing an example of an automatic sewing device showing the implementation state of the device of the present invention, FIG. 4 is a perspective view of the elevator device being driven downward and glass cloth is heavily stacked, and FIG. 5 is a perspective view of the same device being driven upward. 6 is a central sectional view of the main part showing the state before contact in the same raised position, FIG. 7 is a central sectional view of the main part showing the state at the time of contact in the same raised position, and FIG.
This figure is a perspective view showing a conventional elevator device for picking up glass cloth, and FIG. 9 is a perspective view showing the structure of glass cloth to be supplied to the pickup device using the device of the present invention. DESCRIPTION OF SYMBOLS 1...Elevator device 2...Pickup device 6...Glass cloth storage part 10...Elevating guide rail 11...Elevating platform 12...Pulse motor 5
...timing bell 7...support stand 0...rocking table 3...cloth gripping means 5...cloth receiving plate 19...rotation shaft 24...coil spring 34... Cloth sensor a...Glass cloth

Claims (1)

[Claims] (1) The bottom plate of the storage section capable of accommodating the cloth to be supplied is raised and lowered as appropriate via a lifting drive mechanism, and the cloth to be supplied, such as glass cloth with partially different thicknesses, stacked on the bottom plate is controlled to rise and fall. In an elevator device that feeds sheets one by one to a pick-up device configured above the device, the bottom plate is a rocking table whose length is sufficiently narrower than the length of the cloth to be supplied, and the rocking table is elastically supported horizontally at all times to achieve the above-mentioned length. An elevator device for picking up irregularly thick fabrics, characterized in that the elevator device is pivotally installed to be swingable in orthogonal directions.