JPH0457956A - Multi-head type automatic hooked lug loom - Google Patents

Abstract

PURPOSE:To simultaneously weave plural identical patterns in a web and form a multi-colored pattern by exchanging pile yarns with different color pile yarns, by synchronously interlocking plural hook machines disposed on a working table at a prescribed distance through a power transmission mechanism. CONSTITUTION:Plural hook machines 8 are disposed on a working table 7 and a servo motor 12 for driving the hooks is also disposed and a timing belt 17 is connected to each other in an interlocking state between the output pulley 14 of the motor 12 and a driven pulley 16 coaxially disposed with a driving gear 15 engaging with the input gear 10 of the hook machine 8, thereby permitting to synchronously drive the plural hooking machines.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to an automatic hook drag loom that forms a carpet surface by inserting pile threads into a base fabric using a hook machine.

(Prior art) Traditionally, hook-woven carpets were woven using a hand-held hook machine according to a pattern drawn on the base fabric.
As it required a considerable level of skill and was hard labor, its production efficiency was inefficient.

For this reason, an automatic loom has been provided in which a hook machine is movably arranged above a horizontally stretched base cloth and weaves a pre-input pattern, etc. onto the base cloth (Japanese Patent Publication No. 1-33
Publication No. 585).

(Problem to be solved) In carpets woven using this type of automatic loom, multiple patterns are woven in the short side direction of - large base fabrics, and multiple small-sized carpets are formed using - large base fabrics. There is. However, since the conventional automatic hook machine has a structure in which only one hook machine is placed on the workbench, it takes a long time to weave one pattern and the number of patterns to weave one sheet of base fabric. There was a problem in that it took a long time to complete the product.

Furthermore, when weaving the same pattern in different colors, conventional automatic looms require only one hook machine, which poses the problem of requiring work such as changing threads each time.

It is also possible to arrange multiple hook machines on a workbench, but in that case, a drive mechanism such as a motor for driving the hook machine rotation must be placed for each, which would increase the weight of the workbench. Therefore, the workbench traveling system and the underframe traveling system must be constructed with a large capacity system, resulting in the problem that the entire device becomes large and expensive.

The present invention has been made in view of these points, and an object of the present invention is to provide an automatic hook drag loom capable of weaving a plurality of identical patterns onto a single base fabric in a short time at a low cost.

(Means for Solving the Problems) In order to achieve the above-mentioned object, the present invention has a plurality of hook machines mounted on a workbench at appropriate intervals, and one hook machine for rotation drive on the workbench. Place the motor,
It is characterized in that the output part of the hook rotation drive motor and the input part of each hook machine are interlocked and connected via a power transmission mechanism such as a belt transmission mechanism or a gear transmission mechanism.

(Function) In the present invention, a plurality of hook machines are placed on a workbench at appropriate intervals, one hook machine rotation drive motor is arranged on the workbench, and the output section of the hook rotation drive motor is placed on the workbench. Since the hook machine and the input section of each hook machine are interlocked and connected via a power transmission mechanism, a plurality of hook machines operate synchronously, so a plurality of identical patterns can be woven into the base fabric at the same time. Furthermore, by changing the color of the pile threads in each hook machine, carpets of different colors can be woven at the same time.

(Example) The drawings show an example of the present invention, and FIG. 1 is a sectional view of the main part.
FIG. 2 is a plan view of the automatic hook drag loom, FIG. 3 is a front view thereof, and FIG. 4 is a side view thereof.

This automatic hook loom consists of a rectangular frame base (1)
The frame body (3) on which the base fabric (2) is stretched is supported so as to be able to rotate around the axis in the longitudinal direction (X-axis direction), and the base fabric (2) is stretched on the base (
The underframe (6) installed between the front and rear frames (4) and (5) of 1) is mounted so as to be movable in the X-axis direction, and the workbench (7) is mounted on this underframe (6) as the base (1). It is mounted so that it can move in the short side direction (Y-axis direction), and two hook machines (8) are mounted on the workbench (7).
It is constructed by mounting the components in parallel in the Y-axis direction.

The drive mechanism of the underframe (6) is composed of a servo motor (path shown) placed on the base (1) and a ball screw (9) placed on the base (1) along the X axis. Workbench (7)
The drive mechanism is composed of a servo motor (as shown) placed on the underframe (6) and a ball screw placed on the underframe (6) along the Y axis.

The two hook machines (8) mounted on the workbench (7) are each fixed to an input gear (10) so that they can rotate around a needle (11) fixed to the tip thereof. In addition, a drive motor (1) that drives each hook machine (8) is also provided.
2) consists of a servo motor, and this drive motor (
12) has both hook machines (8) (8) placed on the same dirt floor. Then, the swing power transmission mechanism (13) to the hook machine (8)
) includes an output pulley (14) fixed vertically to the output shaft of the drive motor (12), a drive gear (15) that meshes with each input gear (10), and a drive gear (15) arranged coaxially with each drive gear (15). It consists of a driven pulley (16) and a timing belt (17) passed between the output pulley (14) and the driven pulley (16), and the drive motor (I2).
This operation causes both hook machines (808) to turn in the same direction and by the same amount.

The underframe drive motor, the workbench drive motor, and the hook machine rotation drive motor (12) are driven to rotate based on command signals from the NC control device (18). Therefore, by operating the three motors based on the graphic data stored in advance in the control device (18), the hook machine (8) moves on the base fabric (2) in a horizontal plane, and also rotates and ascends and descends. Move and base cloth (2)
Two predetermined patterns are woven into the fabric at the same time.

Reference numeral (19) in the figure is a tension roller disposed in the turning power transmission mechanism (13), and this tension roller (19) is arranged in the turning power transmission mechanism (13).
9) is designed to keep the tension of the timing belt (17) constant between the output pulley (14) and the driven pulley (16). Moreover, the code|symbol (20) is a thread cutting device arrange|positioned at each hook machine (8).

In the above embodiment, the rotational force of the hook machine drive motor (12) is transmitted to the drive gear (15) meshing with the input gear (10) via the belt transmission mechanism. The rotational force of the motor (12) may be transmitted to the drive gear (15) by a gear transmission mechanism.

In addition, in the above embodiment, two hook machines (8) are arranged on the workbench (7), but the hook machines (
8) may be arranged in three or more units.

(Effects) In the present invention, a plurality of hook machines are placed on a workbench at appropriate intervals, one hook machine rotation drive motor is placed on the workbench, and the output part of the hook rotation drive motor is placed on the workbench. and the input section of each hook machine are interlocked and connected via a power transmission mechanism, so multiple hook machines operate synchronously, making it possible to weave multiple identical patterns simultaneously onto the base fabric in parallel. can. Thereby, the time required to weave the entire base fabric can be significantly shortened.

Further, by changing the color of the pile threads in some of the plurality of hook machines, carpets of different colors can be woven at the same time.

Moreover, since multiple hook machines are installed and driven by just one swing drive motor, the weight of the workbench does not increase even when multiple hook machines are installed, making the workbench and underframe lightweight. Since it can be moved, the workbench traveling system and the underframe traveling system can be of small capacity. As a result, the entire device can be made compact even though it has a plurality of hook machines, and the entire device can be constructed at low cost.

[Brief explanation of drawings]

The drawings show embodiments of the present invention, and FIG. 1 is a sectional view of the main parts;
FIG. 2 is a plan view of the automatic hook drag loom, FIG. 3 is a front view thereof, and FIG. 4 is a side view thereof. 2... Base fabric, 3... Frame body, 6... Underframe, 7...
Workbench, 8... Hook machine, 10... Input part of (8), 11... Needle, 12... Hook machine turning drive motor, 13... Power transmission mechanism, 14... (12) Output unit, 18...control device. Patent applicant: Japan Labor Saving Machinery Co., Ltd.

Claims (1)

[Claims] 1. An underframe (6) configured to be movable in the X-axis direction above the base fabric (2) stretched over the frame body (3), and a Y-axis perpendicular to the X-axis direction. The platform includes a workbench (7) attached to the underframe (6) so as to be movable in the direction, and a hook machine (8) attached to the workbench (7) so as to be pivotable around the needle (11). In an automatic hook drag loom configured to control each operation of the frame (6), workbench (7), and hook machine (8) by signals from a control device (18), a plurality of hooks are installed on the workbench (7). At the same time, one hook machine rotation drive motor (12) is placed on the workbench (7), and the output part (14) of the hook rotation drive motor (12) is placed on the hook machine rotation drive motor (12). A multi-head automatic hook drag loom 2 characterized in that the input section (10) of each hook machine (8) is interlocked and connected via a power transmission mechanism (13), and the power transmission mechanism (13) is a belt transmission mechanism. A multi-head automatic hook drag loom 3 according to claim 1, wherein the multi-head automatic hook drag loom 3 according to claim 1, wherein the power transmission mechanism (13) is a gear transmission mechanism.