Automatic air-sweeping device for fabric spreading machine

Abstract

The present invention discloses an automatic air-sweeping device for a cloth laying machine. The air-sweeping rod assembly is located at the front end of the cutting knife assembly, and two ends thereof are respectively connected to a swing rod arm. The swing rod arm is connected to the lower end of a steel wire rope. The upper end of the steel wire rope is connected to the cloth pressing shaft of the cutting knife assembly through a bracket. The cloth pressing shaft rotates in one direction for cloth laying. The rotation of the cloth pressing shaft drives the movement of the steel wire rope. Due to the self-gravity of the air-sweeping rod assembly, the lower end of the steel wire rope causes the swing rod arm to perform a downward indexing action, and the air-sweeping rod assembly presses on the surface of the cloth and slides, scraping and sweeping out the air below the cloth; the cloth pressing shaft rotates in the other direction for the return journey of cloth laying, driving the lower end of the steel wire rope to make the swing rod arm perform an upward lifting action through the pulley assembly, so that the air-sweeping rod assembly leaves the surface of the cloth. The advantages of the present invention are high efficiency and good cloth laying quality, effectively solving the phenomenon that airtight cloth wrinkles due to the presence of air, and the problem of displacement caused by secondary air-sweeping.

Description

Technical Field

[0001] The present invention relates to the field of cloth laying machines, and particularly to an automatic air sweeping device for a cloth laying machine. Background Art

[0002] During the process of laying cloth by a cloth laying machine, a multi-layer structure is adopted for laying. Air will be generated between the upper layer of fabric and the lower layer of fabric. Especially for airtight fabrics that are not breathable, air is likely to be generated under the fabric, which is likely to form wrinkles, resulting in difficulty in laying the fabric neatly. Currently, the air sweeping devices of cloth laying machines are always pressed on the fabric, and as the cloth laying machine moves, the fabric is scraped back and forth repeatedly. This is extremely likely to cause the already laid flat fabric to move due to the repeated scraping of the air sweeping device, and then cause the two ends of the laid cloth to be skewed and misaligned, resulting in poor cloth laying quality and low production efficiency. This is the problem that this application needs to focus on solving. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide an automatic air sweeping device for a cloth laying machine with high efficiency and good cloth laying quality.

[0004] To solve the above technical problems, the present invention provides an automatic air sweeping device for a cloth laying machine, including a wind sweeping rod assembly, which is located at the front end of the cutting knife assembly. Both ends of the wind sweeping rod assembly are respectively connected to a swing rod arm. The swing rod arm is connected to the lower end of a steel wire rope. The upper end of the steel wire rope is connected to the cloth pressing shaft of the cutting knife assembly through a bracket. The cloth pressing shaft rotates in one direction for cloth laying. The rotation of the cloth pressing shaft drives the movement of the steel wire rope. Due to the self-weight of the wind sweeping rod assembly, the lower end of the steel wire rope makes the swing rod arm perform a downward indexing action, and the wind sweeping rod assembly presses on the surface of the fabric and slides, scraping and sweeping out the air under the fabric; the cloth pressing shaft rotates in the other direction for the cloth laying return journey, driving the lower end of the steel wire rope to make the swing rod arm perform an upward lifting action through the pulley assembly, so that the wind sweeping rod assembly leaves the surface of the fabric.

[0005] One end of the steel wire rope is connected to an upper fixing sleeve, and the upper fixing sleeve is sleeved on the bracket; the other end is connected to a lower fixing sleeve through the pulley assembly, and the lower fixing sleeve is connected to the swing rod arm.

[0006] The pulley assembly includes a pulley bracket and wire rope limiting components on both sides thereof. A small pulley is fixed to the inner side of the wire rope pressing piece through a pulley fixing shaft to form a wire rope limiting component. The wire rope led out from the upper fixing sleeve passes through the outer circular surface of the small pulley in the wire rope limiting components on both sides.

[0007] The wind sweeping rod assembly includes a wind sweeping roller and a wind sweeping rod shaft installed inside the roller. The end of the wind sweeping rod shaft extends out of the roller and is connected to one end of the swing rod arms on both sides.

[0008] The other end of the swing rod arm is hinged to the cutting knife arm of the cutting knife assembly.

[0009] The air-sweeping device of the present invention presses on the fabric and moves only during the fabric laying process, and sweeps out the air under the fabric by scraping and extruding. During the return process of fabric laying, the air-sweeping rod assembly is separated from the fabric by a certain distance, so that the laid fabric will not be displaced due to friction with the air-sweeping rod assembly, thus achieving the function of automatic air-sweeping.

[0010] The superior effects of the present invention are as follows:

[0011] 1) The air-sweeping device of the present invention is automatically controlled to sweep air following the action of the fabric laying machine. It has a simple, practical and economical structure, effectively solves the problem of wrinkles caused by air in airtight fabrics that are not breathable, and the problem of displacement caused by secondary air-sweeping.

[0012] 2) It has a high degree of automation control, maximizes the efficiency, and greatly improves the quality of the fabric laying machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings forming a part of this application are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention. In the drawings:

[0014] Figure 1 is a schematic structural diagram of an embodiment of the present invention;

[0015] Figure 2 is a schematic end structure diagram of an embodiment of the present invention;

[0016] Figure 3 is a schematic structural diagram of a pulley assembly of an embodiment of the present invention;

[0017] DESCRIPTION OF THE REFERENCE NUMERALS IN THE DRAWINGS

[0018] 1 - Bracket; 2 - Upper fixing sleeve of steel wire rope;

[0019] 3 - Pulley assembly;

[0020] 31 - Steel wire rope pressing piece; 32 - Fixed shaft of small pulley;

[0021] 33 - Small pulley; 34 - Pulley bracket;

[0022] 4 - Steel wire rope; 5 - Swing rod arm;

[0023] 6 - Lower fixing sleeve of steel wire rope; 7 - Connecting shaft of swing rod arm;

[0024] 8 - Air-sweeping rod assembly;

[0025] 81 - Air-sweeping rod shaft; 82 - Air-sweeping roller;

[0026] 9 - Cloth pressing shaft of cutter assembly; 10 - Cutter arm of cutter assembly. Detailed implementation manners

[0027] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0028] Figures 1 to 3 The structural schematic diagram of the embodiment of the present invention is shown. As Figures 1 - 3 shown, the present invention provides an automatic air-sweeping device for a cloth spreading machine, and the automatic air-sweeping device is installed at the front end of the cutter assembly of the cloth spreading machine. The automatic air-sweeping device includes a wind-sweeping rod assembly 8, and the wind-sweeping rod assembly 8 includes a wind-sweeping roller 82 and a wind-sweeping rod shaft 81 installed inside the cylinder. The end of the wind-sweeping rod shaft 81 extends out of the wind-sweeping roller 82 and is connected to one end of the swing rod arms 5 on both sides. The other end of the swing rod arm 5 is hinged to the cutter arm 10 of the cutter assembly through a swing rod arm connecting shaft 7.

[0029] The swing rod arm 5 is connected to the lower end of the steel wire rope 4 through a steel wire rope lower fixing sleeve 6. The upper end of the steel wire rope 4 is connected to the cloth pressing shaft 9 of the cutter assembly through a bracket 1. When the cloth pressing shaft 9 rotates clockwise for the cloth spreading operation of the cloth spreading machine, it drives the bracket 1 and the steel wire rope upper fixing sleeve 2 to rotate clockwise, drives the steel wire rope 4 to move. The lower end of the steel wire rope 4 makes a downward indexing action on the swing rod arm 5 through the pulley assembly 3 due to the self-weight of the wind-sweeping rod assembly 8, and the wind-sweeping rod assembly 8 presses on the surface of the airtight sealing cloth and slides, scraping and sweeping the air below the cloth backward. When the cloth pressing shaft 9 rotates counterclockwise for the cloth spreading return operation of the cloth spreading machine, it drives the bracket 1 and the steel wire rope upper fixing sleeve 2 to rotate counterclockwise, drives the lower end of the steel wire rope 4 to make an upward lifting action on the swing rod arm 5 through the pulley assembly 3, so that the wind-sweeping rod assembly 8 leaves the surface of the cloth, and the already spread cloth will not be displaced due to friction with the wind-sweeping rod assembly.

[0030] One end of the steel wire rope 4 is connected to the steel wire rope upper fixing sleeve 2, and the steel wire rope upper fixing sleeve 2 is installed on the bracket 1; the other end is connected to the steel wire rope lower fixing sleeve 6 through the pulley assembly 3; the middle part of the steel wire rope 4 is limited and fixed on the pulley bracket 34 through a steel wire rope limiting assembly.

[0031] As Figure 3 shown, the pulley assembly 3 includes a pulley bracket 34 and steel wire rope limiting assemblies on both sides thereof. A small pulley 33 is fixed inside the steel wire rope pressing piece 31 through a pulley fixing shaft 32 to form a steel wire rope limiting assembly, and the steel wire rope 4 led out from the steel wire rope upper fixing sleeve 2 passes through the outer circumferential surface of the small pulley 33 in the steel wire rope limiting assemblies on both sides.

[0032] The air-sweeping device of the present invention is applicable to laying airtight and sealed fabrics. It only presses on the airtight and sealed fabric during the fabric laying process and moves, sweeping out the air under the fabric by scraping and squeezing. During the return process of fabric laying, the air-sweeping rod assembly is separated from the airtight and sealed fabric by a certain distance, so that the laid fabric will not be displaced due to friction with the air-sweeping rod assembly, thus achieving the function of automatic air-sweeping.

[0033] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, various modifications and changes can be made to the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An automatic air-sweeping device for a fabric laying machine, comprising an air-sweeping rod assembly, which is located at the front end of a cutting knife assembly, and two swing rod arms are respectively connected to both ends thereof, and is characterized in that: The swing rod arm is connected to the lower end of the wire rope. The upper end of the wire rope is connected to the cloth pressing shaft of the cutter assembly through a bracket. The cloth pressing shaft rotates in one direction to spread the cloth. The rotation of the cloth pressing shaft drives the wire rope to move. The lower end of the wire rope causes the swing rod arm to perform a downward indexing action due to the self-weight of the air-sweeping rod assembly. The air-sweeping rod assembly presses on the cloth surface and slides, scraping and sweeping out the air below the cloth; the cloth pressing shaft rotates in the other direction for the cloth spreading return journey, driving the lower end of the wire rope to make the swing rod arm perform an upward lifting action through the pulley assembly, so that the air-sweeping rod assembly leaves the cloth surface. One end of the wire rope is connected to the upper fixed sleeve, and the upper fixed sleeve is installed on the bracket; the other end is connected to the lower fixed sleeve through the pulley assembly, and the lower fixed sleeve is connected to the swing rod arm. The pulley assembly includes a pulley bracket and wire rope limiting components on both sides thereof. A small pulley is fixed to the inner side of the wire rope pressing piece through a pulley fixing shaft to form a wire rope limiting component. The wire rope led out from the upper fixed sleeve passes through the outer circumferential surface of the small pulley in the wire rope limiting components on both sides. The air-sweeping rod assembly includes an air-sweeping drum and an air-sweeping rod shaft installed in the drum. The end of the air-sweeping rod shaft extends out of the drum and is connected to one end of the swing rod arms on both sides.

2. The automatic air-sweeping device of the fabric laying machine according to claim 1, wherein: The other end of the swing rod arm is hinged to the cutter arm of the cutter assembly.

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