Folded-in edge synchronous transmission automatic clutch device

Abstract

This invention discloses an automatic clutch device for synchronous transmission of folded-in edge, comprising a main shaft and a rotating trigger plate. The main shaft is equipped with a first transmission wheel, and a working key capable of transmitting torque is provided between the first transmission wheel and the main shaft. The working key has a first state and a second state. When the working key is in the first state, the first transmission wheel can transmit torque to the main shaft; when the working key is in the second state, the first transmission wheel cannot transmit torque to the main shaft. The trigger plate has a notch, and the working key can abut against the trigger plate. When the trigger plate abuts against the working key, the working key is in the second state. When the trigger plate rotates, moving the notch to the position of the working key, the working key is in the first state. Through the cooperation of the working key and the trigger plate, the power of the main shaft can be controllably connected and disconnected, thereby controlling the hooking or stopping of the folded-in edge device, ensuring that the operation of the folded-in edge device meets the process requirements.

Description

Technical Field

[0001] This invention belongs to the field of textile machinery technology, and in particular relates to an automatic clutch device for synchronous transmission of folded-in edges. Background Technology

[0002] The number of weft threads and the height of the pile in towel weaving vary. In the original selvage mechanism, the extension and retraction of the waste selvage shears is fixed, and the hook action is limited to one hook per weft stitch. To adapt the selvage mechanism to accommodate different weft threads in towel weaving, the selvage structure must be changed. For example, a 3-weft pile selvage needs to be changed to a 3-up-3-down heddle method. This allows the hook to move smoothly and without interference within the fabric weft. When the loom folds in the third weft, the waste selvage shears must cut three weft yarns at once, the yarn clamp must hold three yarn ends at once, and the hook must hook all three yarn ends into the weft weft at once. A high yarn count, loose yarn, or coarse yarn may negatively impact the stability of the yarn clamping, cutting, and hooking processes. Summary of the Invention

[0003] The purpose of this invention is to address the aforementioned technical problems by providing a clutch device that can automatically switch the power of the folding edge drive according to the weaving process, so that the folding edge device does not work in the first few wefts before the napping, but only in the one weft during the napping process.

[0004] The objective of this invention is achieved as follows: A folding-in edge synchronous transmission automatic clutch device includes a main shaft and a trigger plate capable of rotating the shaft. The main shaft is provided with a first transmission wheel, and a working key capable of transmitting torque is provided between the first transmission wheel and the main shaft. The working key has a first state and a second state. When the working key is in the first state, the first transmission wheel can transmit torque to the main shaft. When the working key is in the second state, the first transmission wheel cannot transmit torque to the main shaft. The trigger plate is provided with a notch, and the working key can abut against the trigger plate. When the trigger plate abuts against the working key, the working key is in the second state. When the trigger plate rotates and moves the notch to the position of the working key, the working key is in the first state.

[0005] Furthermore, the present invention also includes a planetary gear, which includes a sun gear, planet gears, a planet carrier, and a ring gear. The sun gear is connected to the trigger plate to drive the trigger plate to rotate. The planet carrier is connected to a motor to drive the planet carrier to rotate. A transmission assembly is provided between the first transmission wheel and the ring gear to drive the ring gear to rotate.

[0006] Furthermore, in this invention, the transmission assembly includes a second transmission wheel connected to the first transmission wheel, the first transmission wheel being able to drive the second transmission wheel to rotate, the second transmission wheel being connected to a worm gear, and the gear ring being provided with a worm wheel that cooperates with the worm gear.

[0007] Furthermore, in this invention, the main shaft is provided with a first arc-shaped groove, the first transmission wheel is provided with a second arc-shaped groove, and the working key includes a rotatable column. The column includes an arc surface and a groove. When the arc surface is simultaneously in contact with the first arc-shaped groove and the second arc-shaped groove, the working key is in a first state. When the arc surface is in contact with the first arc-shaped groove and the groove faces the second arc-shaped groove, the working key is in a second state.

[0008] Furthermore, in this invention, the working key also includes a toggle member connected to the column. The toggle member includes a first end and a second end. An opening is provided at the end of the main shaft where the first arc-shaped groove is located. The toggle member is rotatably placed in the opening. A spring connected to the first end is provided in the opening. The second end can abut against the trigger plate.

[0009] Furthermore, in this invention, the main shaft is provided with an eccentric wheel, and the eccentric wheel is provided with a belt. When the working key is in the second state, the eccentric wheel can tension the belt to restrict the rotation of the main shaft.

[0010] Furthermore, the present invention also includes a guide member, wherein the guide member is provided with a limiting groove, and the trigger piece is embedded in the limiting groove.

[0011] The beneficial effects of this invention are:

[0012] 1. By cooperating with the working key and the trigger plate, the power of the spindle can be connected and disconnected in a controllable manner, thereby controlling the hooking or stopping of the folding edge device, so that the action of the folding edge device can meet the process requirements.

[0013] 2. By rotating the planetary carrier driven by the motor, the transmission ratio between the gear ring and the sun gear can be adjusted, thereby controlling the rotation of the trigger plate. This allows the notch on the trigger plate to move, controlling the connection and disconnection of the main shaft power. Simultaneously, the motor can communicate with the loom's electrical control system. By controlling the motor's rotation to change the transmission ratio and adjust the trigger plate's speed for different process requirements, the action of the folding edge device can meet the requirements of various processes. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the clutch device installed on the loom;

[0015] Figure 2 This is a schematic diagram of the clutch mechanism;

[0016] Figure 3 yes Figure 2 Enlarged view of point A in the middle;

[0017] Figure 4 This is a front view of the clutch mechanism;

[0018] Figure 5 This is a side view of the clutch mechanism;

[0019] Figure 6 yes Figure 5 Cross-sectional view of AA;

[0020] Figure 7 This is a schematic diagram of a planetary gear.

[0021] Figure 8 This is a schematic diagram of the working key structure;

[0022] Figure 9 This is a schematic diagram of the structure of the first transmission wheel;

[0023] Figure 10 This is a schematic diagram of the main shaft structure;

[0024] The attached figures are labeled as follows: loom 100; clutch device 101; main shaft 200; opening 201; first arc groove 202; spring 203; eccentric wheel 210; belt body 211; first transmission wheel 300; second arc groove 301; second transmission wheel 400; third transmission wheel 410; worm 411; worm wheel 412; trigger shaft 500; trigger plate 510; notch 511; guide 520; limit groove 521; motor 530; working key 600; column 610; groove 611; arc surface 612; actuating element 620; first end 621; second end 622; planetary gear 700; sun gear 710; planetary gear 720; planet carrier 730; gear ring 740. Detailed Implementation

[0025] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0026] See Figures 1 to 10 An automatic clutch device for synchronous transmission of folded-in edge includes a main shaft 200, on which a first transmission wheel 300 is provided. The first transmission wheel 300 is the input end of the clutch device 101 as a whole, and the main shaft 200 is the output end of the clutch device 101 as a whole. The clutch device 101 is mounted on a loom 100, and the main shaft 200 outputs power to the transmission shaft of the folded-in edge device of the loom 100. The first transmission wheel 300 is connected to the power source of the loom 100 through a transmission chain.

[0027] A working key 600 is provided between the main shaft 200 and the first transmission wheel 300. The working key 600 has a first state and a second state. When the working key 600 is in the first state, the first transmission wheel 300 can transmit power to the main shaft 200, causing the main shaft 200 to rotate. When the working key 600 is in the second state, the first transmission wheel 300 cannot transmit power to the main shaft, at which point the main shaft 200 stops rotating, and the first transmission wheel 300 idles. By switching between the first and second states using the working key 600, the main shaft 200 can be switched between rotating and stopped, thereby controlling the operation of the folding edge device.

[0028] A trigger piece 510 is provided on one side of the working key 600, and the trigger piece 510 is rotatable. The trigger piece 510 is provided with a notch 511. The trigger piece 510 can abut against the working key 600. When the trigger piece 510 abuts against the working key 600, the working key 600 remains in the second state. When the notch 511 of the trigger piece rotates to the position of the working key 600, the trigger piece no longer abuts against the working key 600, and the working key 600 switches to the first state. By changing the rotational speed of the trigger piece, the frequency of switching between the first and second states of the working key 600 can be changed, thereby changing the operation mode of the folding edge device.

[0029] A trigger element is connected to a planetary gear 700, which includes a sun gear 710, planet gears 720, a planet carrier 730, and a ring gear 740. The sun gear 710 is connected to the trigger element via a trigger shaft 500, enabling the sun gear 710 to drive the trigger element to rotate. A first transmission wheel 300 is fixedly connected to a second transmission wheel 400, allowing the first transmission wheel 300 to drive the second transmission wheel 400 to rotate. The second transmission wheel 400 is connected to a third transmission wheel 410, which is connected to a worm gear 411, enabling the second transmission wheel 400 to drive the worm gear 411 to rotate via the third transmission wheel 410. A worm wheel 412 is provided on the outer circumferential surface of the ring gear 740 to mate with the worm gear 411; the rotation of the worm gear 411 drives the ring gear 740 to rotate. The planet carrier 730 is driven to rotate by a motor 530. In the entire planetary gear 700, the input end is the ring gear 740, the output end is the sun gear 710, and the planet gear 720 serves as the transmission between the ring gear 740 and the sun gear 710. The motor 530 can control the rotational speed of the planetary carrier 730, thereby changing the transmission ratio between the ring gear 740 and the sun gear 710, and thus changing the rotational speed of the sun gear 710 to adjust the rotational speed of the trigger plate 510. The motor 530 is a servo motor, and the electrical control system of the loom 100 can communicate with the servo motor, allowing the rotational speed of the trigger plate 510 to be adjusted according to the towel manufacturing process, thereby changing the operation mode of the folding edge mechanism.

[0030] Specifically, the planetary gear 700 has three planetary gears 720, each with 15 teeth; the sun gear 710 has 30 teeth; the ring gear 740 has 60 teeth; the worm gear 412 has 36 teeth; and the worm 411 has 4 threads, forming a constant transmission ratio of 1:9. When weaving nap (with long or short weft insertion), the folded edge requires a "one hook, two stops" action. The working key needs to switch the power output according to the given command: the worm gear 412 rotates 1 revolution, the sun gear 710 rotates 1 revolution, and the planetary carrier 730 worm gear 412 needs to rotate 4 / 3 revolutions in the same direction. When weaving satin (with long weft insertion), the folded edge requires a hook action. The working key is always on, meaning the worm gear 412 rotates 1 revolution, the sun gear 710 does not rotate, and the planetary carrier 730 worm gear 412 needs to rotate 2 / 3 revolutions in the same direction.

[0031] A first arc-shaped groove 202 is provided on the outer wall of the main shaft 200, extending from one end of the main shaft 200 towards the other end. A second arc-shaped groove 301 is provided on the inner wall of the first transmission wheel 400, extending from one side of the second transmission wheel 400 to the other side. When the first arc-shaped groove 202 and the second arc-shaped groove 301 are positioned correspondingly, they can merge into a complete circle. The working key 600 includes a column 610, on which a groove 611 is provided, the back of which is an arc surface 612. The column 610 is embedded in the second arc-shaped groove 301. When part of the arc surface 612 is in contact with the first arc-shaped groove 202 and the other part is in contact with the second arc-shaped groove 301, the first transmission wheel 300 is connected to the main shaft 200 through the working key 600. The power of the first transmission wheel 300 can be transmitted to the main shaft 200 through the working key 600, thus activating the folding edge device. At this time, the working key 600 is in the first state. When the column 610 rotates, causing the arc surface 612 to disengage from the first arc-shaped groove 202 and fully engage with the second arc-shaped groove 301, the groove 611 faces the first arc-shaped groove 202. Since the working key 600 is not in contact with the main shaft 200 due to the groove 611, the connection between the first transmission wheel 300 and the main shaft 200 disappears, and the power of the first transmission wheel 300 cannot be transmitted to the main shaft 200, thus stopping the folding edge device. At this time, the working key 600 is in the second state.

[0032] A toggle member 620 is provided at one end of the column 610. An opening 201 is provided at the end of the main shaft 200 where the first arc-shaped groove 202 is located, and the toggle member 620 is embedded in the opening 201. The toggle member 620 can rotate within the opening 201, thereby driving the column 610 to rotate within the second arc-shaped groove 301. The toggle member 620 includes a first end 621 and a second end 622. A spring 203 connected to the first end 621 is provided within the opening 201, and the spring 203 can keep the working key 600 in the first state. The second end 622 can abut against the trigger piece 510, thereby causing the oscillating element to rotate and driving the column 610 to rotate, thus switching the working key 600 to the second state. When the trigger piece 510 rotates and the notch 511 rotates to the position of the toggle member 620, the second end 622 no longer abuts against the trigger piece 510. Under the action of the spring 203, the toggle member 620 rotates and drives the column 610 to rotate, so that the working key 600 switches to the first state.

[0033] An eccentric wheel 210 is mounted on the main shaft 200, and a belt 211 is mounted on the eccentric wheel 210. When the main shaft 200 drives the eccentric wheel 210 to rotate, the belt 211 is tensioned, thereby increasing the friction between the belt and the eccentric wheel 210. When the working key 600 is in the first state, the first transmission wheel 300 can transmit power to the main shaft 200, driving the main shaft 200 to rotate. The power of the main shaft 200 can overcome the increased friction, allowing the main shaft 200 to rotate normally. When the working key 600 switches from the first state to the second state, the power source of the main shaft 200 is cut off. The friction between the belt 211 and the eccentric wheel 210 can immediately limit the rotation of the main shaft 200, thereby achieving a braking function.

[0034] A guide 520 is provided on one side of the trigger piece 510. A limiting groove 521 is provided on the guide 520. The trigger piece 510 is partially embedded in the limiting groove 521, thereby guiding the rotation of the trigger piece 510.

[0035] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A fold-in edge synchronous drive automatic clutch apparatus characterized by comprising: The device includes a main shaft (200) and a rotatable trigger plate (510). The main shaft (200) is equipped with a first transmission wheel (300). A working key (600) is provided between the first transmission wheel (300) and the main shaft (200). The working key (600) includes a first state and a second state. When the working key (600) is in the first state, the first transmission wheel (300) can transmit power to the main shaft (200). When the working key (600) is in the second state, the first transmission wheel (300) can transmit power to the main shaft (200). 300) The power transmitted to the spindle (200) is cut off. The trigger plate (510) is provided with a notch (511). The working key (600) can abut against the trigger plate (510). When the trigger plate (510) abuts against the working key (600), the working key (600) is in the second state. When the trigger plate (510) rotates and moves the notch (511) to the position of the working key (600), the working key (600) is in the first state. The main shaft (200) is provided with a first arc-shaped groove (202), the first transmission wheel (300) is provided with a second arc-shaped groove (301), and the working key (600) includes a rotatable column (610). The column (610) includes an arc surface (612) and a groove (611). When the arc surface (612) is simultaneously in contact with the first arc-shaped groove (202) and the second arc-shaped groove (301), the working key (600) is in a first state. When the arc surface (612) is only in contact with the first arc-shaped groove (202) and the groove (611) faces the second arc-shaped groove (301), the working key (600) is in a second state. The working key (600) also includes an actuating member (620) connected to the column (610). The actuating member (620) includes a first end (621) and a second end (622). An opening (201) is provided at one end of the main shaft (200) where the first arc groove (202) is located. The actuating member (620) is rotatably placed in the opening (201). A spring (203) connected to the first end (621) is provided in the opening (201). The second end (622) can abut against the trigger piece (510).

2. A fold-in edge synchronous drive automatic clutch device according to claim 1, characterized in that, It also includes a planetary gear (700), which includes a sun gear (710), planet gears (720), a planet carrier (730), and a ring gear (740). The sun gear (710) is connected to the trigger plate (510) to drive the trigger plate (510) to rotate. The planet carrier (730) is connected to a motor (530) to drive the planet carrier (730) to rotate. A transmission assembly is provided between the first transmission wheel (300) and the ring gear (740) to drive the ring gear (740) to rotate.

3. A fold-in edge synchronous drive automatic clutch device according to claim 2, characterized in that, The transmission assembly includes a second transmission wheel (400) connected to the first transmission wheel (300). The first transmission wheel (300) can drive the second transmission wheel (400) to rotate. The second transmission wheel (400) is connected to a worm gear (411). The gear ring (740) is provided with a worm wheel (412) that cooperates with the worm gear (411).

4. The fold-in edge synchronous drive automatic clutch device according to claim 1, characterized by The main shaft (200) is provided with an eccentric wheel (210), and the eccentric wheel (210) is provided with a belt (211). When the working key (600) is in the second state, the eccentric wheel (210) can tension the belt (211) to limit the rotation of the main shaft (200).

5. The fold-in edge synchronous drive automatic clutch device according to claim 1, characterized by It also includes a guide (520) with a limiting groove (521) and the trigger piece (510) is embedded in the limiting groove (521).

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