Polyester thread tensioning mechanism for spinning

Abstract

The utility model discloses a polyester thread tensioning mechanism for spinning, which comprises a back plate, a main shaft, an auxiliary shaft, a main double-roller type grooved thread supporting device and an auxiliary double-roller type grooved thread supporting device, wherein the main shaft and the auxiliary shaft are mounted on the two sides of the surface of the back plate in a diagonal rotating manner, and the main double-roller type grooved thread supporting device and the auxiliary double-roller type grooved thread supporting device are mounted on the same extension end part of the main shaft and the auxiliary shaft; the main double-roller type grooved wire supporting device and the auxiliary double-roller type grooved wire supporting device allow polyester threads to penetrate through in a Z-shaped wiring path, and a protective shell is installed on the back face of the back plate. According to the utility model, the main double-roller type grooved wire supporting device and the auxiliary double-roller type grooved wire supporting device are respectively arranged on the main shaft and the auxiliary shaft, a Z-shaped wiring path is formed, and the main shaft and the auxiliary shaft can synchronously and reversely rotate in combination with a worm and gear rotating driver and a gear transmission structure; and then the main double-roller type grooved wire supporting device and the auxiliary double-roller type grooved wire supporting device relatively deflect, and tension is applied to the polyester thread on the two sides of the wire at the same time.

Description

TECHNICAL FIELD

[0001] The utility model relates to polyester thread tensioning technical field, concretely is a kind of polyester thread tensioning mechanism for weaving. BACKGROUND

[0002] The tensioning mechanism of polyester thread is mainly used to adjust and maintain the tension of polyester thread in the process of weaving, to ensure the quality and production efficiency of fabric, and the tensioning mechanism can effectively prevent the coil relaxation by keeping the stability of thread tension, avoid the wrinkles or irregular weaving effect of fabric, thereby improving production efficiency, reducing the occurrence of broken thread and skipping thread, in addition, appropriate thread tension also helps to reduce equipment wear and tear, prolong the service life of loom and related equipment. Its structure usually includes tensioning wheel, spring, adjusting device and support and other main parts, and the tensioning wheel is the core component, responsible for keeping the tension of thread by friction force;Spring provides the necessary initial tension, and the adjusting device allows the operator to make accurate adjustment as needed, and the working principle of tensioning mechanism is based on the elastic force of spring and the friction force of tensioning wheel, and the operator can change the pre-tightening force of spring through adjusting device, to adjust the tension of polyester thread, to ensure that the tension of thread is kept at preset value during the entire weaving process;However, the tensioning mechanism at present stage is mainly single-roller, single-wheel supporting form in the operation process, when wire passes through a roller, the roller can only exert pressure in one direction, and the other side lacks reverse adjusting device, so that the application of unilateral tension will cause the other side to relax due to lack of reverse compensation, forming the mechanical imbalance state of "one side tight, one side loose". SUMMARY

[0003] The utility model discloses a kind of polyester thread tensioning mechanisms for weaving, one main double-roller type groove thread holder, secondary double-roller type groove thread holder are respectively installed on main shaft, secondary shaft, polyester thread passes through main double-roller type groove thread holder, secondary double-roller type groove thread holder and forms Z-shaped thread path, using worm gear rotation driver, gear transmission structure makes that main shaft, secondary shaft synchronous reverse rotation, then main double-roller type groove thread holder, secondary double-roller type groove thread holder relatively deflection, and polyester thread of Z-shaped simultaneously tensioned from two sides, to solve the problem presented in the above background technique.

[0004] In order to realize the above object, the utility model provides the following technical scheme: a kind of polyester thread tensioning mechanism for weaving, including backplate, main shaft, auxiliary shaft being diagonally rotatable installed on the surface of backplate two sides and the main shaft, auxiliary shaft same extension end portion on which is installed main double-roller type grooved thread holder, auxiliary double-roller type grooved thread holder, main double-roller type grooved thread holder, auxiliary double-roller type grooved thread holder are crossed by polyester thread with Z-shaped wiring path, the back of the backplate is equipped with protective shell, and the inside of the protective shell is provided with gear transmission structure for driving main shaft, auxiliary shaft synchronous reverse rotation, the outer wall of the side of the protective shell away from backplate is equipped with worm gear rotation driver for driving auxiliary shaft rotation.

[0005] Preferably, the structure of the main double-roller type grooved thread holder and the auxiliary double-roller type grooved thread holder is the same, the main double-roller type grooved thread holder includes a steel roller sleeved on the surface of the main shaft, connecting plates installed at both ends of the surface of the main shaft, and a rubber roller rotatably installed between the two connecting plates, and the outer circumferential surface of the rubber roller is provided with a plurality of annular grooves for embedding polyester threads.

[0006] Preferably, one side of the connecting plate is provided with a limiting pin, and the end of the limiting pin extends into the interior of the main shaft and is threadedly connected with the main shaft.

[0007] Preferably, the gear transmission structure includes a four-stage gear disc, a first-stage gear disc rotatably installed on the same end of the main shaft and the auxiliary shaft, a third-stage gear shaft and a second-stage gear shaft rotatably installed on one side of the back of the backplate, the four-stage gear disc, the third-stage gear shaft, the second-stage gear shaft and the first-stage gear disc are sequentially engaged.

[0008] Preferably, the worm gear rotation driver includes a worm gear shaft installed on one side of the back of the protective shell, a reduction shell rotatably installed on one side of the interior of the worm gear shaft, and a worm shaft rotatably installed on the other side of the interior of the worm gear shaft, the worm shaft and the reduction shell are engaged with each other, one end of the reduction shell penetrates into the exterior of the worm gear shaft and the backplate and is fixedly connected with one end of the auxiliary shaft.

[0009] Preferably, the top end and the bottom end of the protective shell are both provided with opening portions.

[0010] Compared with the prior art, the polyester thread tensioning mechanism for spinning has the beneficial effects that: the polyester thread tensioning mechanism for spinning is designed by installing a main double-roller type slotted thread holder and a secondary double-roller type slotted thread holder on a main shaft and a secondary shaft respectively and forming a Z-shaped thread path, in combination with a worm and gear rotary driver and a gear transmission structure, so that the main shaft and the secondary shaft can synchronously and reversely rotate, then the main double-roller type slotted thread holder and the secondary double-roller type slotted thread holder relatively and obliquely swing, and simultaneously exert tension on the polyester thread at both sides, so as to ensure that the polyester thread maintains uniform tension during the whole thread running process, avoids the mechanical imbalance problem of "one side tight and one side loose" that may occur in the traditional single-roller design, and reduces the wire breakage and thread jumping phenomenon; secondly, the Z-shaped thread path makes the polyester thread form a segmented tension gradient through three key contact points, i.e., at the roller inlet, the roller turning point and the roller outlet, so as to realize the balanced distribution of tension; finally, the combination of the worm and gear rotary driver and the gear transmission structure makes the synchronous and reverse rotation operation of the main shaft and the secondary shaft more simple and efficient, and the main double-roller type slotted thread holder and the secondary double-roller type slotted thread holder can maintain stable angular positions after adjustment, reducing the complexity of user operation. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is a side view structure schematic diagram of the utility model;

[0012] Figure 2 It is a three-dimensional structure schematic diagram of the utility model Figure One ;

[0013] Figure 3 It is a three-dimensional structure schematic diagram of the utility model Figure Two ;

[0014] Figure 4 It is a three-dimensional structure schematic diagram of the utility model Figure Three ;

[0015] Figure 5 It is a three-dimensional structure schematic diagram of the utility model after the protective shell is removed.

[0016] In the drawing: 1, back plate; 2, main shaft; 3, secondary shaft; 4, main double-roller type slotted thread holder; 401, steel roller; 402, connecting plate; 403, limiting bolt; 404, rubber roller; 405, annular groove; 5, secondary double-roller type slotted thread holder; 6, protective shell; 7, gear transmission structure; 701, four-stage gear disc; 702, three-stage gear shaft; 703, two-stage gear shaft; 704, one-stage gear disc; 8, worm and gear rotary driver; 801, worm shaft; 802, speed reduction shell; 803, worm gear shaft. DETAILED DESCRIPTION

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0018] Please see Figures 1-5 The present invention provides an embodiment of a polyester yarn tensioning mechanism for textiles, comprising a back plate 1, a main shaft 2 and a secondary shaft 3 diagonally mounted on both sides of the surface of the back plate 1, and a main double-roller grooved yarn support 4 and a secondary double-roller grooved yarn support 5 mounted on the same extended end of the main shaft 2 and the secondary shaft 3. The main double-roller grooved yarn support 4 and the secondary double-roller grooved yarn support 5 allow the polyester yarn to pass through in a Z-shaped path. A protective shell 6 is mounted on the back of the back plate 1, and a gear transmission structure 7 is provided inside the protective shell 6 for driving the main shaft 2 and the secondary shaft 3 to rotate synchronously in opposite directions. Openings are provided at the top and bottom of the protective shell 6. A worm gear rotary driver 8 for driving the secondary shaft 3 to rotate is mounted on the outer wall of the protective shell 6 away from the back plate 1.

[0019] The main double-roller grooved wire support 4 and the auxiliary double-roller grooved wire support 5 have the same structure. The main double-roller grooved wire support 4 includes a steel roller 401 mounted on the surface of the main shaft 2, connecting plates 402 installed at both ends of the surface of the main shaft 2, and a rubber roller 404 rotatably installed between the two connecting plates 402. The outer circumferential surface of the rubber roller 404 is provided with several annular grooves 405 for the polyester wire to be embedded. The double-roller structure formed by the steel roller 401 and the rubber roller 404 can provide better support for the wire during operation and reduce the swaying and vibration of the wire during transmission.

[0020] The polyester thread passes between the steel roller 401 and the rubber roller 404, and exits from the auxiliary double roller grooved thread support 5 in a Z-shaped thread path. At this time, the annular groove 405 allows each polyester thread to enter and isolates two adjacent polyester threads to prevent the polyester threads from overlapping due to misalignment during use.

[0021] A limit bolt 403 is installed on one side of the outer wall of one of the connecting plates 402. The end of the limit bolt 403 extends into the interior of the spindle 2 and is threaded into the spindle 2.

[0022] Workers can unscrew the limit bolt 403 to separate the connecting plate 402 from the end of the main shaft 2, so as to inspect and maintain the rubber roller 404;

[0023] The gear transmission structure 7 includes a fourth-stage gear disk 701 and a first-stage gear disk 704 rotatably mounted on the same end of the main shaft 2 and the auxiliary shaft 3, and a third-stage gear shaft 702 and a second-stage gear shaft 703 rotatably mounted on one side of the back of the back plate 1. The fourth-stage gear disk 701, the third-stage gear shaft 702, the second-stage gear shaft 703 and the first-stage gear disk 704 mesh in sequence.

[0024] The worm gear rotary actuator 8 includes a worm shaft 801 mounted on one side of the back of the protective housing 6, a reduction housing 802 rotatably mounted inside one side of the worm shaft 801, and a worm shaft 803 rotatably mounted inside the other side of the worm shaft 801. The worm shaft 803 and the reduction housing 802 mesh with each other. One end of the reduction housing 802 extends through the worm shaft 801 and the outside of the back plate 1 and is fixedly connected to one end of the secondary shaft 3. The worm gear rotary actuator 8 has a self-locking function, which means that the worm shaft 803 cannot rotate in the opposite direction without external drive, thereby keeping the main double-roller grooved wire guide 4 and the secondary double-roller grooved wire guide 5 at a stable adjustment angle.

[0025] The operator manually rotates the worm shaft 803, which drives the reduction housing 802 in the worm wheel shaft 801 to rotate. At this time, the secondary shaft 3 is also driven to rotate by the reduction housing 802. During this process, the reduction housing 802 drives the main shaft 2 to rotate through the first-stage gear disc 704, the second-stage gear shaft 703, the third-stage gear shaft 702, and the fourth-stage gear disc 701, thereby realizing the opposing sway of the main double-roller grooved wire guide 4 and the secondary double-roller grooved wire guide 5.

[0026] In this embodiment, the polyester thread first passes through the main double-roller grooved thread support 4 and the auxiliary double-roller grooved thread support 5, following a roughly "Z"-shaped path. Then, the operator adjusts the tension parameters according to the production process requirements and the specifications of the polyester thread. At this point, the worm gear rotary drive 8 and the gear transmission structure 7 gradually drive the main shaft 2 and the auxiliary shaft 3 to rotate. The main shaft 2 and the auxiliary shaft 3 rotate synchronously in opposite directions, causing the main double-roller grooved thread support 4 and the auxiliary double-roller grooved thread support 5 to wobble relative to each other. When the polyester thread exhibits slight... Stop driving when the thread is taut; this stage aims to eliminate the initial slack in the thread. Gently pull both ends of the thread and judge the vibration amplitude by touch or visual inspection to check whether the force is evenly distributed in each segment of the Z-path. If one side is obviously slack or too tight, it is necessary to continue fine-tuning by rotating the worm gear drive 8 to make the rotation of the main shaft 2 and the auxiliary shaft 3 increase or decrease synchronously. When the polyester thread is used by textile machinery, the staff should regularly observe the condition of the thread at the turning point of the Z-path between the main double-roller grooved thread support 4 and the auxiliary double-roller grooved thread support 5 to prevent melting due to overheating caused by friction.

Claims

1. A polyester yarn tensioning mechanism for textiles, characterized in that: The back plate (1) includes a main shaft (2) and a secondary shaft (3) installed diagonally on both sides of the surface of the back plate (1), and a main double-roller grooved wire guide (4) and a secondary double-roller grooved wire guide (5) installed on the same extended end of the main shaft (2) and the secondary shaft (3). The main double-roller grooved wire guide (4) and the secondary double-roller grooved wire guide (5) allow polyester yarn to pass through in a Z-shaped routing path. A protective shell (6) is installed on the back of the back plate (1), and a gear transmission structure (7) is provided inside the protective shell (6) for driving the main shaft (2) and the secondary shaft (3) to rotate synchronously in opposite directions. A worm gear rotary driver (8) for driving the secondary shaft (3) to rotate is installed on the outer wall of the protective shell (6) away from the back plate (1).

2. The polyester yarn tensioning mechanism for textiles according to claim 1, characterized in that: The main double-roller grooved wire support (4) and the auxiliary double-roller grooved wire support (5) have the same structure. The main double-roller grooved wire support (4) includes a steel roller (401) fitted on the surface of the main shaft (2), a connecting plate (402) installed at both ends of the surface of the main shaft (2), and a rubber roller (404) rotatably installed between the two connecting plates (402). The outer circumferential surface of the rubber roller (404) is provided with a number of annular grooves (405) for polyester thread to be embedded.

3. The polyester yarn tensioning mechanism for textiles according to claim 2, characterized in that: A limit bolt (403) is installed on one side of the outer wall of one of the connecting plates (402), and the end of the limit bolt (403) extends into the interior of the spindle (2) and is threaded into the spindle (2).

4. The polyester yarn tensioning mechanism for textiles according to claim 1, characterized in that: The gear transmission structure (7) includes a fourth-stage gear disk (701) and a first-stage gear disk (704) rotatably mounted on the same end of the main shaft (2) and the auxiliary shaft (3), and a third-stage gear shaft (702) and a second-stage gear shaft (703) rotatably mounted on one side of the back of the back plate (1). The fourth-stage gear disk (701), the third-stage gear shaft (702), the second-stage gear shaft (703) and the first-stage gear disk (704) mesh in sequence.

5. The polyester yarn tensioning mechanism for textiles according to claim 4, characterized in that: The worm gear rotary actuator (8) includes a worm shaft (801) mounted on one side of the back of the protective housing (6), a reduction housing (802) rotatably mounted on one side inside the worm shaft (801), and a worm shaft (803) rotatably mounted on the other side inside the worm shaft (801). The worm shaft (803) and the reduction housing (802) mesh with each other. One end of the reduction housing (802) extends through the worm shaft (801) and the outside of the back plate (1) and is fixedly connected to one end of the secondary shaft (3).

6. The polyester yarn tensioning mechanism for textiles according to claim 1, characterized in that: The protective shell (6) has openings at both the top and bottom.

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