Double-position opening mechanism of 2.5 D special-shaped fabric knitting machine

Abstract

The utility model discloses a two-position shedding mechanism of a 2.5 D special-shaped fabric knitting machine, which comprises a fixed heald frame and a movable heald frame, and the movable heald frame is slidably mounted on one side of an opening of the fixed heald frame through a guide part; a plurality of first heald strips are mounted on the inner peripheral side of the fixed heald frame side by side along the horizontal direction; a plurality of second heald strips are mounted on the inner peripheral side of the movable heald frame side by side in the horizontal direction; a plurality of yarn hanging holes are respectively formed in the opening sides, facing the rectangular frame body, of the first heald strip and the second heald strip, and at least one group of telescopic units is arranged at the bottom of the movable heald frame. By arranging a plurality of yarn hanging holes, low-flat-position yarn hanging, middle-flat-position yarn hanging and high-flat-position yarn hanging in the 2.5 D special-shaped fabric weaving process can be achieved, opening with the yarn hanging distance being 2 times or 4 times is achieved at the low-flat-position yarn hanging position or the high-flat-position yarn hanging position, and three weaving modes of opening in the vertical direction and opening in the middle-flat-position yarn hanging position are achieved. Compared with the conventional shedding mechanism with only two yarn hanging positions, the application range is expanded.

Description

Technical Field

[0001] The utility model belongs to the technical field of textiles, and in particular relates to a double-position opening mechanism for a 2.5D special-shaped fabric knitting machine. Background Art

[0002] The 2.5D special-shaped structure product combines several 2.5D special-shaped fabric weaving machines to complete the opening and yarn separation work, and completes the weaving on the mold through the mold fixing system. The opening mechanism of the 2.5D special-shaped fabric weaving machine is to limit the left and right sides of the mobile heald frame within two vertical limit guides. The mobile heald frame can move up and down along the limit guides. A screw slider is connected to the bottom of the mobile heald frame. The screw slider is connected to the inside of the screw slider, and the bottom of the screw is connected to the AC motor. The AC motor drives the screw to rotate through the forward and reverse rotation, which is converted into the up and down movement of the screw slider, controlling the up and down movement of the mobile heald frame, driving the elastic wire to move up and down, and completing the yarn interweaving and layering work. After the opening mechanism completes the interweaving and layering work, the yarn layers are manually sorted to complete the weaving work.

[0003] However, the above-mentioned opening mechanism has only two opening positions, the lowest position and the highest position. This structure can only realize low-level yarn hanging, has no middle position function, and cannot realize middle-level yarn hanging, which limits the scope of use of the opening mechanism. Utility Model Content

[0004] In view of this, the purpose of the utility model is to provide a dual-position opening mechanism for a 2.5D special-shaped fabric knitting machine to solve the technical problems mentioned in the prior art.

[0005] A two-position opening mechanism for a 2.5D special-shaped fabric weaving machine, the opening mechanism comprising a fixed heald frame and a movable heald frame, the fixed heald frame and the movable heald frame are both rectangular frames, and the movable heald frame is slidably mounted on an opening side of the fixed heald frame through a guide member;

[0006] A plurality of first healds are installed side by side in a horizontal direction on the inner circumference of the fixed heald frame;

[0007] A plurality of second healds are installed side by side in a horizontal direction on the inner peripheral side of the movable heald frame;

[0008] The first heddle and the second heddle are respectively provided with a plurality of yarn hanging holes on the opening side facing the rectangular frame, and the plurality of yarn hanging holes are arranged side by side and equidistantly in the vertical direction, and the yarn hanging holes are used to realize yarn hanging at different positions;

[0009] At least one group of telescopic units is arranged at the bottom of the movable heald frame, the telescopic units are mounted on the fixed heald frame, the output ends of the telescopic units are connected to the bottom of the movable heald frame, and the telescopic units are used to drive the movable heald frame to move up and down along the moving direction of the guide member.

[0010] Optionally, the guide member comprises:

[0011] Two sets of limit guide rails, the two sets of limit guide rails are symmetrically arranged on the left and right sides of the outer periphery of the movable heald frame;

[0012] Two groups of sliding bearings, the outer circumferences of the two groups of sliding bearings are slidably mounted on the two groups of limiting guide rails in a one-to-one correspondence, a fixing rod is mounted on the inner circumference of the sliding bearing, and one end of the fixing rod is mounted on the outer circumference of the fixed heald frame through a side plate.

[0013] Optionally, a plurality of fixed angle irons are installed on the crossbeam of the fixed heald frame, and the fixed angle irons are arranged in a one-to-one correspondence with the number of the first heald bars, and the fixed angle irons are used to install the first heald bars on the fixed heald frame.

[0014] Optionally, two fixed shafts are symmetrically arranged on the vertical beam of the movable heald frame, two ends of the two fixed shafts are respectively connected to the inner circumference of the movable heald frame, and two ends of the second heald bar are respectively installed on the two fixed shafts.

[0015] Optionally, the telescopic unit is configured as a cylinder.

[0016] Optionally, the telescopic unit is connected to a signal acquisition and fault alarm system, and the signal acquisition and fault alarm system includes:

[0017] At least three groups of reed tube sensors, the test probes of the three groups of reed tube sensors are respectively installed on one side of the output end of the telescopic unit, and are used to collect the linear displacement stroke of the telescopic unit;

[0018] An electromagnetic reversing valve, the inlet end of the electromagnetic reversing valve is connected to the outlet end of the pressure supply station through a pipeline, and the three outlet ends of the electromagnetic reversing valve are respectively connected to the three inlet ends of the telescopic unit through pipelines, and is used to control one of the inlet ends of the telescopic unit to communicate with the outlet end of the pressure supply station to achieve the extension or retraction of the telescopic unit;

[0019] A fault indicator light, which is used to give an alarm when the linear displacement stroke of the telescopic unit does not reach a preset position;

[0020] An electrical box, the electrical box being connected to the three groups of the reed tube sensors, the electromagnetic reversing valves and the fault indicator lights, and being used to control the operation of the reed tube sensors, the electromagnetic reversing valves and the fault indicator lights;

[0021] A control box is connected to the pressure supply station and the electrical box and is used to start the pressure supply station and the electrical box.

[0022] Optionally, the opening mechanism also includes a protective casing, which is a hollow box inside, and the fixed heald frame, the movable heald frame, the telescopic unit and the signal acquisition and fault alarm system are all arranged in the protective casing, and the protective casing is installed on the outer periphery of the fixed heald frame, and the protective casing is provided with yarn threading openings on the opening sides of the fixed heald frame and the movable heald frame.

[0023] Optionally, a pressure regulating filter is installed at the outlet end of the pressure supply station.

[0024] The beneficial effects that the utility model can produce include:

[0025] The utility model provides a dual-position opening mechanism for a 2.5D special-shaped fabric knitting machine. The opening mechanism can realize low-level yarn hanging, middle-level yarn hanging and high-level yarn hanging in the 2.5D special-shaped fabric knitting process by setting a plurality of yarn hanging holes. At the same time, it can realize 2 times or 4 times the yarn hanging distance opening at the low-level yarn hanging position or the high-level yarn hanging position, and realize up and down bidirectional opening three weaving modes at the middle-level yarn hanging position. Compared with the previous opening mechanism with only two yarn hanging positions, the scope of use is increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the internal structure of a double-position opening mechanism of a 2.5D special-shaped fabric knitting machine of the utility model;

[0027] Figure 2 For the utility model Figure 1 Sectional view at AA;

[0028] Figure 3 For the utility model Figure 1 The enlarged view of point B;

[0029] In the figure: 1. fixed heald frame, 2. movable heald frame, 3. first heald bar, 4. second heald bar, 5. yarn hanging hole, 6. telescopic unit, 7. limit guide rail, 8. sliding bearing, 9. fixed rod, 10. side plate, 11. fixed angle iron, 12. fixed shaft, 13. reed tube sensor, 14. electromagnetic reversing valve, 15. fault indicator light, 16. pressure supply station, 17. control box, 18. protective casing, 19. pressure regulating filter, 20. yarn threading port, 21. electrical box. DETAILED DESCRIPTION

[0030] The present invention is described in detail below in conjunction with the accompanying drawings and embodiments, but the present invention is not limited to these embodiments.

[0031] like Figures 1 to 3As shown, the utility model provides a dual-position opening mechanism for a 2.5D special-shaped fabric weaving machine, the opening mechanism comprises a fixed heald frame 1 and a movable heald frame 2, both of which are rectangular frames, the movable heald frame 2 is slidably mounted on one side of the opening of the fixed heald frame 1 through a guide; a plurality of first heald bars 3 are mounted side by side in a horizontal direction on the inner circumference of the fixed heald frame 1; a plurality of second heald bars 4 are mounted side by side in a horizontal direction on the inner circumference of the movable heald frame 2; a plurality of yarn hanging holes 5 are respectively provided on the first heald bars 3 and the second heald bars 4 facing the opening side of the rectangular frame, the plurality of yarn hanging holes 5 are arranged side by side and equidistantly in a vertical direction, and the yarn hanging holes 5 are used to realize yarn hanging at different positions; at least one group of telescopic units 6 is arranged at the bottom of the movable heald frame 2, the telescopic units 6 are fixedly mounted on the fixed heald frame 1, the output end of the telescopic units 6 is fixedly connected to the bottom of the movable heald frame 2 through a floating joint, and the telescopic units 6 are used to drive the movable heald frame 2 to move up and down along the movable direction of the guide.

[0032] In the above, the opening mechanism can realize low-level hanging yarn, middle-level hanging yarn and high-level hanging yarn in the weaving process of 2.5D special-shaped fabric by setting multiple hanging yarn holes 5, and realize 2 times or 4 times the hanging yarn distance opening at the low-level hanging yarn position or the high-level hanging yarn position, and realize three weaving modes of up and down bidirectional opening at the middle-level hanging yarn position, which increases the scope of use compared with the opening mechanism with only two hanging yarn positions in the past. Among them, the 2 times hanging yarn distance opening is set at two adjacent hanging yarn positions, such as the low-level hanging yarn and the middle-level hanging yarn or the middle-level hanging yarn and the high-level hanging yarn position; the 4 times hanging yarn distance opening is set at the low-level hanging yarn and the high-level hanging yarn position.

[0033] It should be noted that the first heald bars 3 and the second heald bars 4 are both aluminum alloy heald bars.

[0034] Furthermore, the guide member includes two sets of limit guide rails 7 and two sets of sliding bearings 8, the two sets of limit guide rails 7 are symmetrically arranged on the left and right sides of the outer periphery of the movable heald frame 2, and are embedded in the outer periphery of the movable heald frame 2; the outer peripheries of the two sets of sliding bearings 8 are slidably installed on the two sets of limit guide rails 7 one by one, and a fixed rod 9 is fixedly installed on the inner periphery of the sliding bearing 8, and a side plate 10 is welded to one end of the fixed rod 9, and the side plate 10 is fixedly installed on the outer periphery of the fixed heald frame 1. When the telescopic unit 6 drives the movable heald frame 2 to move, the limit guide rails 7 on the movable heald frame 2 slide on the outer periphery of the sliding bearing 8, thereby realizing the guiding and limiting effect on the movable heald frame 2.

[0035] Furthermore, a plurality of fixed angle irons 11 are fixedly mounted on the crossbeam of the fixed heald frame 1, and the fixed angle irons 11 are arranged in a one-to-one correspondence with the number of the first heald bars 3, and the fixed angle irons 11 are used to fix the first heald bars 3 on the fixed heald frame 1. The fixed angle irons 11 are respectively mounted on the two groups of crossbeams of the fixed heald frame 1, so as to enhance the structural strength of the first heald bars 3.

[0036] Furthermore, two fixed shafts 12 are symmetrically arranged on the vertical beam of the movable heald frame 2, and the two ends of the two fixed shafts 12 are respectively fixedly connected to the inner circumference of the movable heald frame 2, and the two ends of the second heald bar 4 are respectively sleeved on the outer circumference of the two fixed shafts 12, and the second heald bar 4 is locked by a locking nut, so as to facilitate the adjustment of the installation spacing and installation position of the second heald bar 4.

[0037] Furthermore, the telescopic unit 6 is configured as a cylinder. At the same time, the telescopic unit 6 is connected to a signal acquisition and fault alarm system, which includes at least three groups of reed tube sensors 13, electromagnetic reversing valves 14, fault indicator lights 15, electrical boxes 21 (with built-in PLC drivers and power modules) and control boxes 17. The electrical boxes 21 are connected to the three groups of reed tube sensors 13, electromagnetic reversing valves 14 and fault indicator lights 15 to control the operation of the reed tube sensors 13, electromagnetic reversing valves 14 and fault indicator lights 15. The control box 17 is connected to the pressure supply station 16 and the electrical boxes 21 to start the pressure supply station 16 and the electrical boxes 21. The test probes of the three groups of reed tube sensors 13 are respectively installed on one side of the output end of the telescopic unit 6 to collect the linear displacement stroke of the telescopic unit 6. That is, the movable heald frame 2 moves in a straight line displacement stroke between two adjacent points among the three points of the low level yarn hanging mouth, the middle level yarn hanging mouth and the high level yarn hanging mouth; the inlet end of the electromagnetic reversing valve 14 is connected to the outlet end of the supply and pressure station 16 through a pipeline, and the three outlet ends of the electromagnetic reversing valve 14 are respectively connected to the three inlet ends of the telescopic unit 6 through pipelines, and the PLC driver built into the electrical box 21 is used to control the electromagnetic reversing valve 14 to connect one of the inlet ends of the telescopic unit 6 with the outlet end of the supply and pressure station 16 to realize the extension or retraction of the telescopic unit 6, wherein the outlet end of the supply and pressure station 16 is installed with a pressure regulating filter 19 for filtering the water mist in the compressed air and adjusting the output air pressure of the supply and pressure station 16; the fault indicator light 15 is used to sound an alarm when the straight line displacement stroke of the telescopic unit 6 does not reach the preset position. Specifically, during the weaving process, the control box 17 controls the pressure supply station 16 to provide compressed air to the cylinder, and switches the inlet end of the cylinder through the electromagnetic reversing valve 14 to drive the cylinder to telescopic movement. At the same time, the reed tube sensor 13 collects the linear displacement stroke of the telescopic unit 6, and uploads the collected information to the PLC driver built into the electrical box 21. The PLC driver sends the collected result to the fault indicator light 15; when the collected result is consistent with the preset value, the fault indicator light 15 displays a normal result; when the collected result is inconsistent with the preset value, such as when the linear displacement stroke of the cylinder does not reach the preset position or exceeds the preset position, the fault indicator light 15 displays an abnormal result, prompting the operator to perform maintenance in time to ensure the accuracy of fabric weaving.

[0038] Furthermore, the opening mechanism also includes a protective casing 18, which is a hollow box body, and the fixed heald frame 1, the movable heald frame 2, the telescopic unit 6 and the signal acquisition and fault alarm system are all arranged in the protective casing 18, and the protective casing 18 is fixedly installed on the outer periphery of the fixed heald frame 1, and the protective casing 18 is provided with a threading port 20 on the opening side of the fixed heald frame 1 and the movable heald frame 2. It is used to isolate the weaving personnel, the fiber and the mechanical structure, to prevent the weaving personnel from being harmed when the mechanical structure moves, and to prevent the fiber from entering the mechanical structure and damaging the mechanical equipment.

[0039] As a specific implementation of the utility model, according to the 2.5D special-shaped fabric weaving process requirements, the initial position of the hanging yarn is determined, and the action mode and the initial position of the mobile heald frame 2 are selected from the control box 17. The control box 17 sends the execution command signal to the electrical box 21 and the pressure supply station 16. The electrical box 21 receives the signal and controls the electromagnetic reversing valve 14 to operate. The electromagnetic reversing valve 14 adjusts the air supply circuit of the pressure supply station 16 to the cylinder, so that the pressure supply station 16 drives the output rod of the cylinder to push out and drive the mobile heald frame 2 to move upward to the process requirement position. The reed tube sensor 13 detects the current position of the cylinder and feeds back the collected signal to the electrical box 21. , the electrical box 21 outputs the collected results to the fault indicator light 15 according to the feedback signal, and displays it in different colors through the fault indicator light 15; after the initial position action is completed, the weaving operator starts to hang the yarn, and after all the yarns are hung, press the button of the control box 17 to switch the action mode, drive the mobile heald frame 2 to move upward to complete the interweaving, and then the weaving operator separates the yarn and weaves, and continues to press the button of the control box 17 to switch the action mode, drive the mobile heald frame 2 to move downward to complete the interweaving, and then the weaving operator continues to separate the yarn and weave, thereby completing a weaving process, and repeating the above weaving process until the entire preform is weaved.

[0040] The above are only several embodiments of the utility model, and do not limit the utility model in any form. Although the utility model is disclosed as above in the preferred embodiments, it is not used to limit the utility model. Any technician familiar with this profession, without departing from the scope of the technical solution of the utility model, makes slight changes or modifications using the technical contents disclosed above, which are equivalent to equivalent implementation cases and fall within the scope of the technical solution.

Claims

1. A dual-position opening mechanism for a 2.5D special-shaped fabric knitting machine, characterized in that: The opening mechanism comprises a fixed heald frame (1) and a movable heald frame (2), wherein the fixed heald frame (1) and the movable heald frame (2) are both rectangular frames, and the movable heald frame (2) is slidably mounted on an opening side of the fixed heald frame (1) via a guide member; A plurality of first heald bars (3) are installed side by side in a horizontal direction on the inner peripheral side of the fixed heald frame (1); A plurality of second heald bars (4) are installed side by side in a horizontal direction on the inner peripheral side of the movable heald frame (2); A plurality of yarn hanging holes (5) are respectively arranged on the opening sides of the first heddle (3) and the second heddle (4) facing the rectangular frame, and the plurality of yarn hanging holes (5) are arranged side by side and equidistantly in the vertical direction, and the yarn hanging holes (5) are used to realize yarn hanging at different positions; At least one group of telescopic units (6) is arranged at the bottom of the movable heald frame (2); the telescopic units (6) are mounted on the fixed heald frame (1); the output end of the telescopic units (6) is connected to the bottom of the movable heald frame (2); the telescopic units (6) are used to drive the movable heald frame (2) to move up and down along the moving direction of the guide member.

2. A dual-position opening mechanism for a 2.5D special-shaped fabric knitting machine according to claim 1, characterized in that: The guide member comprises: Two sets of limit guide rails (7), the two sets of limit guide rails (7) are symmetrically arranged on the left and right sides of the outer periphery of the movable heald frame (2); Two groups of sliding bearings (8), the outer circumferences of the two groups of sliding bearings (8) are slidably mounted on the two groups of limiting guide rails (7) in a one-to-one correspondence, a fixing rod (9) is mounted on the inner circumference of the sliding bearing (8), and one end of the fixing rod (9) is mounted on the outer circumference of the fixed heald frame (1) through a side plate (10).

3. A dual-position opening mechanism for a 2.5D special-shaped fabric knitting machine according to claim 1, characterized in that: A plurality of fixed angle irons (11) are installed on the crossbeam of the fixed heald frame (1), the fixed angle irons (11) being arranged in a one-to-one correspondence with the number of the first heald bars (3), and the fixed angle irons (11) are used to install the first heald bars (3) on the fixed heald frame (1).

4. A dual-position opening mechanism for a 2.5D special-shaped fabric knitting machine according to claim 1, characterized in that: Two fixed shafts (12) are symmetrically arranged on the vertical beam of the movable heald frame (2), and the two ends of the two fixed shafts (12) are respectively connected to the inner circumference of the movable heald frame (2), and the two ends of the second heald bar (4) are respectively installed on the two fixed shafts (12).

5. A dual-position opening mechanism for a 2.5D special-shaped fabric knitting machine according to claim 1, characterized in that: The telescopic unit (6) is configured as a cylinder.

6. A dual-position opening mechanism for a 2.5D special-shaped fabric knitting machine according to claim 5, characterized in that: The telescopic unit (6) is connected to a signal collection and fault alarm system, and the signal collection and fault alarm system comprises: At least three groups of reed tube sensors (13), wherein the test probes of the three groups of reed tube sensors (13) are respectively installed on one side of the output end of the telescopic unit (6) and are used to collect the linear displacement stroke of the telescopic unit (6); An electromagnetic reversing valve (14), wherein the inlet end of the electromagnetic reversing valve (14) is connected to the outlet end of the pressure supply station (16) through a pipeline, and the three outlet ends of the electromagnetic reversing valve (14) are respectively connected to the three inlet ends of the telescopic unit (6) through pipelines, and is used to control one of the inlet ends of the telescopic unit (6) to be connected to the outlet end of the pressure supply station (16), so as to realize the extension or retraction of the telescopic unit (6); A fault indicator light (15), the fault indicator light (15) being used to issue an alarm when the linear displacement stroke of the telescopic unit (6) does not reach a preset position; An electrical box (21), the electrical box (21) being connected to the three groups of the reed tube sensors (13), the electromagnetic reversing valve (14) and the fault indicator light (15), and being used for controlling the operation of the reed tube sensors (13), the electromagnetic reversing valve (14) and the fault indicator light (15); A control box (17), wherein the control box (17) is connected to the pressure supply station (16) and the electrical box (21), and is used to start the pressure supply station (16) and the electrical box (21).

7. A two-position opening mechanism for a 2.5D special-shaped fabric knitting machine according to claim 6, characterized in that: The opening mechanism further comprises a protective casing (18), wherein the protective casing (18) is a box body with a hollow interior, wherein the fixed heald frame (1), the movable heald frame (2), the telescopic unit (6) and the signal acquisition and fault alarm system are all arranged in the protective casing (18), and the protective casing (18) is installed on the outer periphery of the fixed heald frame (1), and the protective casing (18) is provided with a yarn threading opening (20) on the opening sides of the fixed heald frame (1) and the movable heald frame (2).

8. A dual-position opening mechanism for a 2.5D special-shaped fabric knitting machine according to claim 6, characterized in that: A pressure regulating filter (19) is installed at the outlet end of the pressure supply station (16).

Images