Cloth pressing device for air jet loom

Abstract

The utility model discloses a cloth pressing device for an air jet loom, which relates to the technical field of looms and comprises a frame, a guide roller mechanism and a lifting unit are fixedly mounted on the frame, a cloth pressing unit is fixedly mounted on the lifting unit, and a cleaning unit is fixedly mounted on the cloth pressing unit. The cloth pressing unit comprises a pressing plate and an adjusting seat, and the pressing plate and the adjusting seat are fixedly installed on the lifting unit. The cloth pressing device has the beneficial effects that through real-time monitoring of a first pressure sensor and cooperative work of a control valve mechanism and an air bag, accurate adjustment of cloth pressure by a pressing plate is achieved, so that acting force is evenly applied to cloth, the cloth is better tensioned and flattened, and the flatness and quality of the cloth are improved; by means of the composite coatings on the surfaces of the sliding plate, the pressing roller mechanism and the guide roller mechanism and the unique pressure monitoring and adjusting mode of the pressing roller mechanism, friction between the sliding plate, the pressing roller mechanism and the guide roller mechanism and cloth is effectively reduced, cloth abrasion and weft yarn broken ends are reduced, and production efficiency and quality are improved.

Description

A pressing device for an air-jet loom Technical Field

[0001] This utility model relates to the field of weaving machine technology, and in particular to a pressing device for an air-jet loom. Background Technology

[0002] Air-jet looms are shuttleless looms that use jet airflow to pull the weft yarn through the shed. The working principle is to use air as the weft-introducing medium, and the compressed airflow generated by the jet will generate frictional traction force to pull the weft yarn through the shed. The jet generated by the airflow achieves the purpose of weft introduction. When the loom is in use, a fabric pressing device is needed to flatten it to facilitate subsequent operations on the fabric.

[0003] A search revealed that Chinese patent application CN222139433U discloses a fabric pressing device for an air-jet loom, which mainly uses a motor, screw, and slide plate to drive the top pressing plate to adjust its height, and uses the top pressing plate in conjunction with the bottom pressing plate to press the fabric.

[0004] Compared with existing technologies in related fields, it can be seen that most existing fabric pressing devices use pressure plates or rollers to directly press the fabric flat. During the process, the pressure control is not precise enough, making it difficult to ensure that the fabric is subjected to uniform force in the width direction. This leads to problems such as wrinkles or localized excessive tightness or looseness, which seriously affects the flatness and quality of the fabric. Summary of the Invention

[0005] The purpose of this invention is to provide a pressing device for an air-jet loom in order to solve the above-mentioned problems.

[0006] This utility model achieves the above objectives through the following technical solutions:

[0007] A fabric pressing device for an air-jet loom includes a frame, a guide roller mechanism and a lifting unit fixedly mounted on the frame, a fabric pressing unit fixedly mounted on the lifting unit, and a cleaning unit fixedly mounted on the fabric pressing unit.

[0008] The pressing unit includes a pressing plate and an adjusting seat. The pressing plate and the adjusting seat are fixedly installed on the lifting unit. The pressing plate has an installation cavity inside, and a storage cavity is arranged on the lower surface of the pressing plate. An air guide box and a fixedly arranged control valve mechanism are fixedly installed in the installation cavity. An airbag and a reset assembly are fixedly installed in the storage cavity. A slide plate is slidably installed in the storage cavity. The slide plate is located below the airbag and is fixedly connected to the reset assembly. The control valve mechanism connects the airbag and the air guide box. Detection components are fixedly installed on both the adjusting seat and the slide plate. A movable part is slidably installed on the adjusting seat. An elastic pad and a pressure roller mechanism are fixedly installed at both ends of the movable part. The elastic pad is slidably installed in the adjusting seat.

[0009] Furthermore, the reset assembly includes an elastic telescopic component, which is fixedly installed on both sides inside the storage cavity, and the telescopic end of the elastic telescopic component is fixedly connected to the top of the slide plate.

[0010] Furthermore, the detection component includes a first pressure sensor and a second pressure sensor. The first pressure sensor is fixedly installed on the lower surface of the slide plate, and the second pressure sensor is fixedly installed inside the adjustment seat. The second pressure sensor is located below the elastic pad.

[0011] Furthermore, the lifting unit includes a bracket, which consists of two sets of brackets arranged opposite each other. A motor is fixedly mounted on each set of brackets, and a lead screw mechanism is rotatably mounted on each set of brackets. The lead screw mechanism is fixedly connected to the output shaft of the motor, and the two sets of lead screw mechanisms are respectively fixedly connected to the pressure plate and the adjusting seat.

[0012] Furthermore, the cleaning unit includes two placement racks, which are fixedly installed on two sets of brackets. Each placement rack is equipped with a hydraulic telescopic mechanism. The telescopic end of the hydraulic telescopic mechanism is fixedly mounted with a mounting base, and a brush and a dust collection hood are fixedly mounted on the mounting base.

[0013] Furthermore, composite coatings are fixedly installed on the slide plate, pressure roller mechanism, and guide roller mechanism.

[0014] Furthermore, a mounting bracket is fixedly installed at one end of the upper surface of the frame, and a rangefinder is fixedly installed on the opposite surface of the mounting bracket and the frame.

[0015] The advantages compared to existing technologies are as follows:

[0016] 1. By real-time monitoring and control of the first pressure sensor, the valve mechanism and airbag work together to achieve precise adjustment of the pressure plate on the fabric, thereby applying force evenly to the fabric, better tensioning and flattening the fabric, and improving the flatness and quality of the fabric.

[0017] 2. The composite coating on the surfaces of the slide plate, pressure roller mechanism, and guide roller mechanism, as well as the unique pressure monitoring and adjustment method of the pressure roller mechanism, effectively reduce friction between the slide plate, pressure roller mechanism, and guide roller mechanism and the fabric, reduce fabric wear and weft yarn breakage, and improve production efficiency and quality. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 is a partial cross-sectional structural schematic diagram of a pressing device for an air-jet loom according to the present invention;

[0020] Figure 2 is an enlarged structural schematic diagram of point A in Figure 1 of the pressing device for an air-jet loom according to the present invention.

[0021] Figure 3 is an enlarged structural schematic diagram of section B in Figure 1 of the pressing device for an air-jet loom according to the present invention.

[0022] Figure 4 is a schematic diagram of the pressure plate structure of the pressure device for a jet loom according to the present invention.

[0023] Figure 5 is a first isometric structural schematic diagram of a pressing device for an air-jet loom according to the present invention.

[0024] Figure 6 is an enlarged structural schematic diagram of point C in Figure 5 of the pressing device for an air-jet loom according to the present invention.

[0025] Figure 7 is an enlarged structural schematic diagram of point D in Figure 5 of the pressing device for an air-jet loom according to the present invention.

[0026] Figure 8 is a second isometric structural schematic diagram of a pressing device for an air-jet loom according to the present invention.

[0027] The annotations in the attached figures are explained as follows:

[0028] 1. Frame; 2. Guide roller mechanism; 301. Pressure plate; 302. Mounting cavity; 303. Air guide box; 304. Control valve mechanism; 305. Storage cavity; 306. Airbag; 307. Elastic telescopic component; 308. Slide plate; 309. First pressure sensor; 310. Pressure roller mechanism; 311. Moving part; 312. Elastic pad; 313. Second pressure sensor; 314. Adjustment seat; 401. Bracket; 402. Motor; 403. Screw mechanism; 501. Placement rack; 502. Hydraulic telescopic mechanism; 503. Mounting seat; 504. Brush; 505. Dust hood; 6. Composite coating; 7. Mounting frame; 8. Rangefinder. Detailed Implementation

[0029] As shown in Figures 1-8, a fabric pressing device for an air-jet loom includes a frame 1, on which a guide roller mechanism 2 and a lifting unit are fixedly installed. A fabric pressing unit is fixedly installed on the lifting unit, and a cleaning unit is fixedly installed on the fabric pressing unit. The cleaning unit cleans the fabric pressing unit to ensure its cleanliness. The frame 1 is installed at the output end of the loom. The guide roller mechanism 2 guides and supports the fabric. The lifting unit adjusts the height of the fabric pressing unit, and the fabric pressing unit flattens the fabric, facilitating subsequent processing of the fabric.

[0030] As shown in Figures 2-6 and 8, the pressing unit includes a pressing plate 301 and an adjusting seat 314. The pressing plate 301 and the adjusting seat 314 are respectively fixedly installed on the lifting unit. The pressing plate 301 has an installation cavity 302 inside. The lower surface of the pressing plate 301 has storage cavities 305 arranged in a row. An air guide box 303 and a fixedly arranged control valve mechanism 304 are fixedly installed in the installation cavity 302. An airbag 306 and a reset assembly are fixedly installed in the storage cavity 305. A sliding plate 308 is slidably installed in the storage cavity 305. The sliding plate 308 is located below the airbag 306 and is fixedly connected to the reset assembly. The control valve mechanism 304 is connected to... Detection components are fixedly installed on the airbag 306, air guide box 303, adjusting seat 314, and sliding plate 308. A movable part 311 is slidably installed on the adjusting seat 314. An elastic pad 312 and a pressure roller mechanism 310 are fixedly installed at both ends of the movable part 311, respectively. The elastic pad 312 is slidably installed inside the adjusting seat 314 and is located directly above the detection components. The air guide box 303 is connected to an external air supply device, which supplies gas into the air guide box 303. The fabric requiring flattening passes sequentially through the pressure plate 301 and the pressure roller mechanism 310. During operation, the pressure plate is driven by a lifting unit. 301. The adjusting seat 314 moves to adjust the height of the pressure plate 301 and the pressure roller mechanism 310, so that the pressure plate 301 and the pressure roller mechanism 310 are in contact with the fabric to tension and flatten the fabric. During the tensioning and flattening process of the pressure plate 301 and the pressure roller mechanism 310, the slide plate 308 is pressed onto the fabric by the detection component. At the same time, the pressure plate 301 and the slide plate 308 apply force to the fabric. According to the detection result of the detection component, the control valve mechanism 304 controls the gas entering the air guide box 303 to enter the air bag 306. The air bag 306 moves the slide plate 308, and the slide plate 308 moves the air guide box 306. 08 Adjust the force applied to different positions of the fabric by the pressure plate 301 to ensure the uniformity of the force applied to the fabric in the width direction, ensuring flatness and quality. The reset component can reset the slide plate 308. At the same time, the pressure roller mechanism 310 applies force to the detection component through the moving part 311 and the elastic pad 312. The detection component monitors the force applied to the fabric, so that different forces can be applied according to the type of fabric to ensure the effect of fabric tensioning and flattening and levelness. The elastic pad 312 enables the detection component to continuously monitor the force applied to the fabric by the pressure roller mechanism 310.

[0031] As shown in Figure 2, the reset assembly includes an elastic telescopic member 307, which is fixedly installed on both sides inside the storage cavity 305. The telescopic end of the elastic telescopic member 307 is fixedly connected to the top of the slide plate 308. The elastic telescopic member 307 provides elastic support for the slide plate 308. When the slide plate 308 is stretched under force, it squeezes the elastic telescopic member 307. After the force applied by the slide plate 308 to the fabric ends, under the elastic force of the elastic telescopic member 307, the elastic telescopic member 307 drives the slide plate 308 to reset, and works with the airbag 306 to control the movement of the slide plate 308.

[0032] As shown in Figures 2-4, the detection assembly includes a first pressure sensor 309 and a second pressure sensor 313. The first pressure sensor 309 is fixedly installed on the lower surface of the slide plate 308, and the second pressure sensor 313 is fixedly installed inside the adjusting seat 314. The second pressure sensor 313 is located below the elastic pad 312. During the pressing process of the pressure plate 301 and the pressure roller mechanism 310 on the produced fabric, the slide plate 308 is pressed against the fabric by the first pressure sensor 309, and the pressure of the first pressure sensor 309 on different positions of the fabric is measured. Monitoring allows for timely understanding of the forces applied to different fabric areas, enabling the pressure plate 301 to apply forces more effectively and ensuring the uniformity of the force applied by the pressure plate 301. Simultaneously, when the pressure roller mechanism 310 applies forces to the fabric, it applies forces to the second pressure sensor 313 through the moving part 311 and the elastic pad 312. The second pressure sensor 313 detects the forces applied to the fabric by the pressure roller mechanism 310, thereby enabling the pressure roller mechanism 310 to perform fabric pressing processing more effectively.

[0033] As shown in Figures 1, 5, 6, and 8, the lifting unit includes a bracket 401. There are two sets of brackets 401 arranged opposite each other. A motor 402 is fixedly mounted on each set of brackets 401, and a lead screw mechanism 403 is rotatably mounted on each set of brackets 401. The lead screw mechanism 403 is fixedly connected to the output shaft of the motor 402. The two sets of lead screw mechanisms 403 are respectively fixedly connected to a pressure plate 301 and an adjusting seat 314. The pressure plate 301 and the adjusting seat 314 are slidably connected to the bracket 401. During operation, the motor 402 drives the lead screw mechanism 403 to rotate, which in turn drives the pressure plate 301 and the adjusting seat 314 to move up and down, adjusting their heights. This allows the pressure plate 301 and the pressure roller mechanism 310 to press fabrics of different thicknesses, effectively improving the ease of adjustment.

[0034] As shown in Figures 3, 5, and 7, the cleaning unit includes two placement racks 501, each fixedly mounted on one of two sets of brackets 401. Hydraulic telescopic mechanisms 502 are fixedly arranged on each placement rack 501. Mounting seats 503 are fixedly mounted on the telescopic ends of the hydraulic telescopic mechanisms 502. A brush 504 and a dust suction hood 505 are fixedly mounted on the mounting seats 503. The opening direction of the dust suction hood 505 corresponds to that of the brush 504. The dust suction hood 505 is connected to an external vacuuming device. Adjusting the height of the pressure plate 301 and the pressure roller mechanism 310 lowers them to the level of the brush 504. At a height of 04, the hydraulic telescopic mechanism 502 moves the brush 504 and the dust hood 505 via the mounting base 503. The brush 504 cleans the debris adhering to the surface of the pressure plate 301 and the pressure roller mechanism 310, ensuring the cleanliness of their surfaces. This allows the pressure plate 301 and the pressure roller mechanism 310 to better press the fabric, reducing the impact of debris during pressing and thus effectively improving cleaning speed, reducing downtime for cleaning, and ensuring production efficiency. During the cleaning process, the external dust collection device uses the dust hood 505 to absorb the cleaned debris, improving the convenience of processing.

[0035] As shown in Figures 2-4 and 6, a composite coating 6 is fixedly installed on the slide plate 308, the pressure roller mechanism 310, and the guide roller mechanism 2. The composite coating 6 improves the smoothness of the surfaces of the slide plate 308, the pressure roller mechanism 310, and the guide roller mechanism 2, reduces friction when in contact with the fabric, allows the fabric to move better, reduces damage to the fabric and weft yarn breakage caused by friction, and improves the quality of the fabric.

[0036] As shown in Figures 1, 5, and 8, a mounting frame 7 is fixedly installed at one end of the upper surface of the frame 1. A rangefinder 8 is fixedly installed on the opposite surface of the mounting frame 7 and the frame 1. The mounting frame 7 is close to the feed end of the pressing device and is located in the middle of the pressing device and the weaving machine. The fabric produced by the weaving machine enters the pressing device after passing through the mounting frame 7 and the rangefinder 8. The distance the fabric travels is measured by the rangefinder 8 to determine the thickness of the fabric, which facilitates the processing of the fabric.

[0037] Working principle: As shown in Figures 1, 5, 6, and 8, the guide roller mechanism 2 guides and supports the fabric, and the distance the fabric travels is measured by the rangefinder 8 to determine the fabric thickness. The motor 402 drives the screw mechanism 403 to rotate, and the screw mechanism 403 drives the pressure plate 301 and the adjusting seat 314 to move up and down. Adjusting the height of the pressure plate 301 and the adjusting seat 314 makes the pressure plate 301 and the pressure roller mechanism 310 fit against the fabric.

[0038] As shown in Figures 2, 4, and 8, when the pressure plate 301 tensions and flattens the fabric, the slide plate 308 is pressed against the fabric by the first pressure sensor 309. The first pressure sensor 309 monitors the pressure at different positions of the fabric to understand the force applied to different areas of the fabric. Based on the detection results of the first pressure sensor 309, the control valve mechanism 304 controls the gas entering the air guide box 303 to enter the airbag 306. The airbag 306 moves the slide plate 308, and the slide plate 308 adjusts the force applied by the pressure plate 301 to different positions of the fabric to ensure the uniformity of the force on the fabric in the width direction. After the slide plate 308 extends, the elastic telescopic member 307 drives the slide plate 308 to return to its original position.

[0039] As shown in Figures 3, 5, and 6, when the pressure roller mechanism 310 tensions and presses the fabric, the pressure roller mechanism 310 applies force to the second pressure sensor 313 through the movable part 311 and the elastic pad 312. The second pressure sensor 313 detects the force applied to the fabric by the pressure roller mechanism 310 and automatically adjusts the pressure according to the detection result to ensure the pressing effect and levelness of the fabric.

[0040] As shown in Figures 2-4 and 6, during the operation, the smoothness of the surfaces of the slide plate 308, pressure roller mechanism 310, and guide roller mechanism 2 is improved by the composite coating 6, which reduces friction when in contact with the fabric, allowing the fabric to move better.

[0041] As shown in Figures 1, 3, and 5-8, after the work is completed or during a break, the height of the pressure plate 301 and the pressure roller mechanism 310 is adjusted by the motor 402 and the lead screw mechanism 403, so that the pressure plate 301 and the pressure roller mechanism 310 are lowered to the height of the brush 504. The hydraulic telescopic mechanism 502 drives the brush 504 and the dust collection hood 505 to move through the mounting base 503. The brush 504 cleans the debris adhering to the surface of the pressure plate 301 and the pressure roller mechanism 310, and the external dust collection device uses the dust collection hood 505 to absorb the cleaned debris.

[0042] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A fabric pressing device for an air-jet loom, characterized in that, The system includes a frame (1), on which a guide roller mechanism (2) and a lifting unit are fixedly installed. A fabric pressing unit is fixedly installed on the lifting unit, and a cleaning unit is fixedly installed on the fabric pressing unit. The fabric pressing unit includes a pressing plate (301) and an adjusting seat (314). The pressing plate (301) and the adjusting seat (314) are respectively fixedly installed on the lifting unit. An installation cavity (302) is provided inside the pressing plate (301). A storage cavity (305) is arranged on the lower surface of the pressing plate (301). An air guide box (303) and a fixedly arranged control valve mechanism (304) are fixedly installed in the installation cavity (302). An air guide box (303) and a fixedly arranged control valve mechanism (304) are fixedly installed in the storage cavity (305). The device is equipped with an airbag (306) and a reset assembly. A sliding plate (308) is slidably installed in the receiving cavity (305). The sliding plate (308) is located below the airbag (306) and is fixedly connected to the reset assembly. The control valve mechanism (304) connects the airbag (306) and the air guide box (303). Detection components are fixedly installed on both the adjusting seat (314) and the sliding plate (308). A movable part (311) is slidably installed on the adjusting seat (314). An elastic pad (312) and a pressure roller mechanism (310) are fixedly installed at both ends of the movable part (311). The elastic pad (312) is slidably installed in the adjusting seat (314).

2. The pressing device for an air-jet loom according to claim 1, characterized in that: The reset assembly includes an elastic telescopic member (307), which is fixedly installed on both sides inside the storage cavity (305), and the telescopic end of the elastic telescopic member (307) is fixedly connected to the top of the slide plate (308).

3. The pressing device for an air-jet loom according to claim 1, characterized in that: The detection assembly includes a first pressure sensor (309) and a second pressure sensor (313). The first pressure sensor (309) is fixedly installed on the lower surface of the slide plate (308), and the second pressure sensor (313) is fixedly installed inside the adjustment seat (314). The second pressure sensor (313) is located below the elastic pad (312).

4. The pressing device for an air-jet loom according to claim 1, characterized in that: The lifting unit includes a bracket (401), which has two sets of brackets (401) arranged opposite each other. A motor (402) is fixedly installed on each set of brackets (401), and a lead screw mechanism (403) is rotatably installed on each set of brackets (401). The lead screw mechanism (403) is fixedly connected to the output shaft of the motor (402), and the two sets of lead screw mechanisms (403) are respectively fixedly connected to the pressure plate (301) and the adjusting seat (314).

5. A pressing device for a jet loom according to claim 4, characterized in that: The cleaning unit includes two placement racks (501), which are fixedly installed on two sets of brackets (401). Each of the two placement racks (501) is fixedly arranged with a hydraulic telescopic mechanism (502). A mounting base (503) is fixedly installed on the telescopic end of the hydraulic telescopic mechanism (502). A brush (504) and a dust collection cover (505) are fixedly installed on the mounting base (503).

6. The pressing device for an air-jet loom according to claim 1, characterized in that: Composite coatings (6) are fixedly installed on the slide plate (308), the pressure roller mechanism (310), and the guide roller mechanism (2).

7. A fabric pressing device for an air-jet loom according to claim 1, characterized in that: A mounting bracket (7) is fixedly installed on one end of the upper surface of the frame (1), and a rangefinder (8) is fixedly installed on the opposite surface of the mounting bracket (7) and the frame (1).

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