Multi-station automatic positioning and dyeing equipment for fabric

Abstract

The utility model discloses a kind of multi-station fabric automatic positioning bleaching and dyeing equipment, including annular guide rail system, five-station circulation unit, clamping conveying mechanism, dye tank lifting mechanism, visual positioning system and discharge system;Annular guide rail system is horizontally installed in rack top, five stations are evenly distributed with 72 ° center angle;Clamping conveying mechanism is slidably connected guide rail by crossbeam, pneumatic gripper clamps fabric;Dye tank lifting mechanism is equipped with independent dye tank below station 1-4;Visual positioning system contains feeding camera, deviation rectification camera and liquid level monitoring camera, realizes dynamic deviation rectification;Discharge system is located just below station 5;The utility model solves the problem that traditional equipment positioning precision is poor, station pollution is heavy, efficiency is low, applicable to large-scale fabric continuous bleaching and dyeing.

Description

Technical Field

[0001] This utility model relates to the field of textile printing and dyeing machinery, and in particular to an automatic positioning and dyeing equipment for multi-station fabrics. Background Technology

[0002] The existing patent CN201510360227.1, which proposes "a multi-temperature and multi-pressure zone dyeing and bleaching device," has the following problems: The fabric requires manual transfer, resulting in low positioning accuracy. Only one piece of fabric can be processed at a time, limiting production capacity; High-temperature zones can easily cause fabric deformation, and there is no real-time correction mechanism. Utility Model Content

[0003] The purpose of this utility model is to provide a multi-station automatic positioning dyeing and bleaching equipment for fabrics in order to solve the above-mentioned technical problems.

[0004] To achieve the above objectives, this utility model specifically adopts the following technical solution: This utility model proposes a multi-station automatic positioning dyeing and bleaching equipment for fabrics, including a ring guide rail system, a five-station circulation unit, a clamping and conveying mechanism, a dyeing tank lifting mechanism, a vision positioning system, and a discharge system; the ring guide rail system is horizontally installed on the top of the equipment frame. The five-station circulation unit consists of five stations evenly distributed along the circumference of the circular guide rail, which are used for pre-bleaching, dyeing, color fixing, washing, and discharging, respectively. Clamping and conveying mechanism: includes a crossbeam and a pair of pneumatic grippers. The crossbeam is slidably connected to the bottom of the annular guide rail. The distance between the center line of the grippers and the center of the annular guide rail is 2.8m ± 0.1m. Dyeing tank lifting mechanism: There is a dyeing tank below each of the workstations 1-4. The maximum lifting height of the dyeing tank is 100mm lower than the gripper track surface. Discharge system: Located directly below station 5, it includes a V-shaped conveyor belt with its centerline perpendicular to the opening and closing surface of the grippers.

[0005] As a preferred embodiment of this utility model, the visual positioning system includes: Feeding camera: Located directly above the feed end of station 1, with the center point of the lens 1500mm from the fabric plane; Correction camera: Located directly above workstation 2, forming a 72° central angle with the camera at workstation 1; Monitoring cameras: each camera is positioned at a 45° elevation angle and aimed at the surface of the dyeing tank at 3 / 4 of the workstation.

[0006] As a preferred technical solution of this utility model, in the five-station circulation unit: station 1 is used for pre-bleaching and is equipped with a pH sensor to monitor the acidity and alkalinity of the bleach solution in real time; station 2 is used for dyeing and is equipped with a dye concentration detector; station 3 is used for color fixing and is equipped with a temperature closed-loop control system; station 4 is used for washing and is equipped with a conductivity sensor.

[0007] As a preferred technical solution of this utility model, the annular guide rail system adopts: a segmented aluminum alloy rail with a single segment length of 1.5m; a magnetic grating positioning system with a resolution of 0.1mm; and a self-lubricating slider with a rated load of ≥200kg.

[0008] As a preferred technical solution of this utility model, the pneumatic gripper of the clamping and conveying mechanism adopts: a clamping surface covered with silicone with a thickness of 10±0.5mm; a pressure sensor to monitor the clamping force in real time; and an anti-sway mechanism including two sets of dampers.

[0009] The beneficial effects of this utility model are as follows: 1. The five-station 72° circular layout enables continuous operation, with a daily production capacity of 4.8 tons, which is 50% higher than traditional equipment, thus improving efficiency; 2. Four-camera collaborative positioning and gripper dynamic compensation ensure fabric displacement error ≤ ±0.05mm, solving the problem of uneven dyeing; 3. Space optimization: The circular guide rail has a diameter of 6m and occupies 8㎡, saving 40% of the space compared to the straight layout. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model.

[0011] Reference numerals: 1. Circular guide rail system; 2. Five-station circulation unit; 3. Clamping and conveying mechanism; 4. Vision positioning system; 5. Discharge system; 11. Aluminum alloy track; 12. Magnetic grating positioning system; 13. Self-lubricating slider; 21. Station 1; 22. Station 2; 23. Station 3; 24. Station 4; 25. Station 5; 31. Crossbeam; 32. Pneumatic gripper; 33. Circular guide rail; 41. Loading camera; 42. Correction camera; 43. Monitoring camera. Detailed Implementation

[0012] like Figure 1 As shown, this utility model proposes: a multi-station automatic positioning dyeing and bleaching equipment for fabrics, including a ring guide rail system, a five-station circulation unit, a clamping and conveying mechanism, a dyeing tank lifting mechanism, a vision positioning system, and a discharge system; the ring guide rail system is horizontally installed on the top of the equipment frame; The five-station circulation unit consists of five stations evenly distributed along the circumference of the circular guide rail, which are used for pre-bleaching, dyeing, color fixing, washing, and discharging, respectively. Clamping and conveying mechanism: includes a crossbeam and a pair of pneumatic grippers. The crossbeam is slidably connected to the bottom of the annular guide rail. The distance between the center line of the grippers and the center of the annular guide rail is 2.8m ± 0.1m. Dyeing tank lifting mechanism: There is a dyeing tank below each of the workstations 1-4. The maximum lifting height of the dyeing tank is 100mm lower than the gripper track surface. Discharge system: Located directly below station 5, it includes a V-shaped conveyor belt with its centerline perpendicular to the opening and closing surface of the grippers.

[0013] The visual positioning system includes: Feeding camera: Located directly above the feed end of station 1, with the center point of the lens 1500mm from the fabric plane; Correction camera: Located directly above workstation 2, forming a 72° central angle with the camera at workstation 1; Monitoring cameras: each camera is positioned at a 45° elevation angle and aimed at the surface of the dyeing tank at 3 / 4 of the workstation.

[0014] The five-station circulation unit includes: station 1 for pre-bleaching and equipped with a pH sensor to monitor the acidity and alkalinity of the bleach solution in real time; station 2 for dyeing and equipped with a dye concentration detector; station 3 for color fixing and equipped with a closed-loop temperature control system; and station 4 for washing and equipped with a conductivity sensor.

[0015] The ring guide rail system adopts: a segmented aluminum alloy rail with a single segment length of 1.5m; a magnetic grating positioning system with a resolution of 0.1mm; and a self-lubricating slider with a rated load of ≥200kg.

[0016] The pneumatic grippers of the clamping and conveying mechanism are equipped with: a silicone-coated clamping surface with a thickness of 10±0.5mm; a pressure sensor to monitor the clamping force in real time; and an anti-sway mechanism comprising two sets of dampers.

[0017] Working principle: The fabric is conveyed to station 1 by the feeding roller. The feeding camera scans the marked points on the edge of the fabric at a 1500mm overhead distance to generate positioning coordinates. The servo correction mechanism adjusts the position of the fabric according to the coordinate data. The pneumatic gripper clamps both ends of the fabric and activates the anti-sway damper. The gripper moves along the circular guide rail to station 1. The dyeing tank rises through the hydraulic lifting mechanism to immerse the fabric. At the same time, the pH sensor monitors the acidity and alkalinity of the bleach in real time and links the replenishment valve. After the predetermined time is completed, the dyeing tank descends, and the gripper moves the fabric to station 2. The dye concentration detector dynamically adjusts the amount of dye liquor injected, and the correction camera detects the fabric deformation and triggers the gripper's micro-rotation compensation. When the fabric is subsequently moved to station 3, the temperature closed-loop system maintains the dyeing tank at a constant temperature of 65℃±0.5℃. The conductivity sensor at station 4 monitors the water purity and initiates the water change program. Finally, the fabric is moved to station 5, the gripper releases the fabric, and the fabric falls vertically onto the V-shaped conveyor belt, achieving fully unmanned and precise control of the entire process. Example 1

[0018] Taking a 1.5m wide pure cotton fabric as an example: Feeding and positioning: The fabric enters the station 1 area via the feeding roller. The feeding camera scans the edge markers at a height of 1500mm. The servo correction mechanism adjusts the position deviation to ≤0.05mm. The pneumatic gripper holds both ends of the fabric. The anti-sway damper is activated. In the pre-bleaching process, the gripper transfers the fabric to the top of station 1, the pre-bleaching tank rises to immerse the fabric, and the pH sensor monitors the pH at 10.5±0.1 and activates the replenishment valve. Dynamic dyeing, transferred to station 2, dye tank rises for immersion, dye concentration detector controls feed pump in real time, correction camera detects 0.3mm thermal deformation and triggers gripper to rotate counterclockwise 2° for compensation. Color fixing and washing: the color fixing tank at station 3 is kept at a constant temperature of 65℃±0.5℃ for 20 minutes; when the conductivity sensor at station 4 detects that the water quality is >200μS / cm, wastewater is automatically discharged. The material is controlled to be transferred to station 5, blown by an air knife for 0.3 seconds, and the fabric falls vertically into the V-shaped conveyor belt. The residual liquid is recovered through the drain hole. The conveyor belt outputs at 0.8m / s. A single cycle takes 40 minutes and the fabric moisture content is ≤25%.

[0019] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered illustrative and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0020] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A multi-station automatic positioning of fabric dyeing apparatus, characterized in that It includes a ring guide rail system (1), a five-station circulation unit (2), a clamping and conveying mechanism (3), a vision positioning system (4), and a discharge system (5); the ring guide rail system (1) is horizontally installed on the top of the equipment frame; The five-station circulation unit (2) consists of five stations evenly distributed along the circumference of the annular guide rail (33). Clamping and conveying mechanism (3): includes a crossbeam (31) and a pair of pneumatic grippers (32). The crossbeam (31) is slidably connected to the bottom of the annular guide rail (33). The center line of the pneumatic grippers (32) is 2.8m ± 0.1m away from the center of the annular guide rail (33). Each of the workstations 1-4 is provided with a dyeing tank below it; the discharge system (5) is located directly below workstation 5 (25).

2. A multi-station automatic positioning of fabric dyeing apparatus according to claim 1, characterized in that: The visual positioning system (4) includes: a loading camera (41), a correction camera (42), and a monitoring camera (43). The loading camera (41) is located directly above the feeding end of station 1; The correction camera (42) is located directly above station 2, forming a 72° central angle with the camera at station 1; The monitoring camera (43) is positioned at a 45° elevation angle and aimed at the surface of the dyeing tank at 3 / 4 of the workstation.

3. A multi-station automatic positioning of fabric dyeing apparatus according to claim 1, characterized in that: In the five-station circulation unit (2): Station 1 (21) is used for pre-bleaching and is equipped with a pH sensor; Station 2 (22) is used for dyeing and is equipped with a dye concentration detector; Station 3 (23) is used for color fixing and is equipped with a temperature closed-loop control system; Station 4 (24) is used for washing and is equipped with a conductivity sensor.

4. The multi-station automatic positioning dyeing and bleaching equipment for fabrics according to claim 1, characterized in that: The annular guide rail (33) system (1) includes a segmented aluminum alloy rail (11), a magnetic grating positioning system (12), and a self-lubricating slider (13).

5. The multi-station automatic positioning dyeing and bleaching equipment for fabrics according to claim 1, characterized in that: The pneumatic gripper (32) of the clamping and conveying mechanism (3) includes a silicone-coated clamping surface, a pressure sensor, and a damper.

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