A pneumatic thread cutting and threading device for a texturing machine

Abstract

The utility model discloses a kind of pneumatic silk cutting silk feeding devices of elasticizer, for the low efficiency, unstable quality problem caused by traditional device manual reset, tail yarn and silk feeding, the device includes silk thread head mechanism, silk cutting mechanism and silk feeding mechanism, realize automatic silk cutting, head after full can winding by cylinder drive, automatic silk feeding after empty can in place, without manual operation.Silk thread head mechanism utilizes positioning sheet gap and negative pressure silk component cooperation accurate head, silk cutting mechanism is reliable by angle self-adapting design to ensure cutting, silk feeding mechanism realizes yarn accurate pick by gear and rack transmission.The device uses single spindle modular design, adapts different models elasticizer, especially meet the efficient automatic production demand of automatic can elasticizer, with simple structure, low use cost, production coherence is strong and the like advantage, provide key technical support for textile production automation.

Description

Technical Field

[0001] This utility model relates to the field of textile equipment technology, and in particular to a pneumatic yarn cutting and feeding device for a texturing machine. Background Technology

[0002] In the textile texturing process, the yarn cutting and loading operations are crucial for ensuring smooth production and product quality. Currently, the yarn cutting device in traditional texturing machines is generally installed at the front end of the roller conveyor, a layout design with several drawbacks. First, after the yarn cutting action is completed, the device must be manually reset before it can perform the cutting task again. This not only increases the workload of operators but also causes production interruptions due to frequent manual resets, significantly reducing production efficiency. Second, after the yarn cutting process, the subsequent tail yarn retention and loading operations are also manual. Operators must manually retain the tail yarn using a suction gun and then manually load the yarn onto a new bobbin. This series of manual operations is extremely cumbersome, requiring a high level of operator skill and experience. Furthermore, human error can easily lead to inconsistent tail yarn retention lengths and misaligned loading positions, affecting product quality stability and severely hindering production efficiency.

[0003] With the rapid development of the modern textile industry towards automation and intelligence, automatic texturing machines have gradually become the mainstream equipment in the industry due to their high efficiency and continuous production advantages. However, the manual operation mode of the traditional texturing machine's filament cutting and feeding device is seriously out of sync with the highly automated production requirements of the automatic texturing machine. Automatic texturing machines require a highly continuous and automated production process. The low efficiency and unstable quality caused by the manual operation of traditional devices have become bottlenecks restricting the overall performance of the automatic texturing machine, making it difficult for traditional filament cutting and feeding devices to adapt to the production scenarios of automatic texturing machines.

[0004] Therefore, how to overcome the shortcomings of traditional texturing machine filament cutting and feeding devices, such as cumbersome operation, low efficiency, and insufficient automation, and develop a new type of device that can automatically cut filaments, automatically retain yarn ends, and automatically feed yarn to meet the urgent needs of modern textile industry for efficient and automated production has become an important technical problem that needs to be solved in this field. Utility Model Content

[0005] In view of this, the present invention proposes a pneumatic filament cutting and feeding device for a texturing machine. This device can automatically cut and retain yarn ends after a full-bottle winding is completed, and can automatically feed and wind yarn after an empty bobbin is loaded, without manual operation. The device includes a yarn end-retaining mechanism, a filament cutting mechanism, and a yarn feeding mechanism. The above structure aims to solve some or all of the technical problems mentioned in the background art.

[0006] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0007] A pneumatic shaving and feeding device for a texturing machine includes a thread end-retaining mechanism, a shaving mechanism, and a feeding mechanism, which are fixed on a frame. The shaving mechanism is located at the rear of the thread end-retaining mechanism, and the feeding mechanism is located on one side of the thread end-retaining mechanism.

[0008] In a structure that optimizes the aforementioned solution, the yarn retention mechanism includes a base, a mounting plate A, a positioning plate, a cylinder A, and a negative pressure yarn retention assembly. The base is fixed to the frame, the mounting plate A is fixedly connected to the base, the cylinder A is fixed to the mounting plate A via a fixed seat, the positioning plate is rotatably mounted on the mounting plate A via a fixed shaft, one end of the positioning plate is connected to the actuating end of the cylinder A, and the negative pressure yarn retention assembly is fixed to the mounting plate A, with the negative pressure port opening on the base. When the yarn retention mechanism is activated, the cylinder A extends, the positioning plate rotates around the fixed shaft, and the positioning plate lifts up, guiding the yarn into the negative pressure yarn retention assembly. By driving the positioning plate to rotate and lift around the fixed shaft via the cylinder A, the positioning plate hooks the yarn and guides it to the negative pressure port on the base. The negative pressure formed by the external air pipe draws the yarn in and retains it, ensuring the automation and reliability of the yarn retention action and avoiding the problem of inconsistent yarn length caused by manual operation.

[0009] In a structure that optimizes the aforementioned solution, the negative pressure yarn retention assembly includes a ceramic component, a housing A, an inlet bushing, and an outlet bushing. The housing A is fixed to a mounting plate A, and the inlet and outlet bushings are fixed inside the housing A. The ceramic component is mounted on a base and connected to the inlet bushing. An external air pipe connects the inlet and outlet bushings, generating negative pressure within them. The yarn is then drawn in through the ceramic component, which serves as the negative pressure port. The ceramic component, acting as the negative pressure port, directly contacts the yarn. The inlet and outlet bushings are connected to an air source via an external air pipe, forming a continuous negative pressure airflow to ensure the yarn is accurately drawn in and fixed at the yarn retention position. The structural design of the housing A and the base ensures the installation stability of the negative pressure assembly, providing a reliable yarn positioning foundation for subsequent yarn cutting and loading operations.

[0010] Furthermore, the positioning plate has a notch. When the thread passes through, the notched end of the positioning plate lifts up, and the thread is hooked by the notch, allowing the thread to pass over the ceramic piece. This ensures that the thread is successfully sucked in, avoids thread misalignment leading to failure, and improves the reliability and stability of the mechanism.

[0011] In a structure that optimizes the aforementioned solution, the slicing mechanism includes a mounting base, a housing B, a slicing nozzle, a pressure plate, a fixing block, a rotating shaft, a cylinder B, and a blade. The mounting base is fixed to the frame, and the housing B is bolted to the mounting base. The cylinder B is fixed to the housing B via the pressure plate, and the fixing block is fixed to the housing B. The slicing nozzle is rotatably mounted on the fixing block, and the rotating shaft is mounted on the slicing nozzle. The actuating end of the cylinder B is connected to the rotating shaft, and the blade is mounted on the slicing nozzle. When the slicing mechanism is activated, the cylinder B actuates, lifting the slicing nozzle, allowing the yarn to pass through and completing the slicing action. The cylinder B drives the slicing nozzle to rotate and lift around the fixing block, causing the blade mounted on the slicing nozzle to cut into the yarn path, completing the automatic slicing action. This structure achieves non-contact automatic slicing through pneumatic control, avoiding manual intervention and improving the continuity and efficiency of the production process.

[0012] In a structure that optimizes the aforementioned solution, a torsion spring is also included. The torsion spring is mounted on a bolt, with its two ends respectively clamped onto the mounting base and the housing B. This allows the housing B to adjust its posture according to the actual angle of the grooved box cover, ensuring precise alignment between the shaving nozzle and the yarn path. This avoids incomplete shaving or mechanical interference caused by equipment installation errors, thereby improving the versatility of the device.

[0013] In a structure that optimizes the aforementioned solution, the yarn feeding mechanism includes a mounting plate C, a yarn-picking iron plate, a cylinder housing, a cylinder liner, a piston, a rotor, a rotating arm, and a torsion spring. The mounting plate C is fixed to the frame, and the cylinder housing is fixed to the mounting plate C. The piston is disposed inside the cylinder housing, and cylinder liners are provided at both ends of the cylinder housing. The piston can move within a certain range of the cylinder housing. The rotor is disposed inside the cylinder housing. The piston has a rack, and the rotor is a gear. The piston meshes with the rotor, and the rotating arm is connected to the rotor. The movement of the piston will drive the rotor and the rotating arm to rotate together. A yarn-picking iron plate is disposed on the rotating arm. Under the drive of the rotating arm, the yarn-picking iron plate hooks the yarn and delivers it to a designated position. One end of the torsion spring is fixed to the cylinder housing, and the other end is connected to the rotating arm. The torsion spring can reset the rotating arm. The piston inside the cylinder housing converts linear motion into rotational motion of the rotating arm through rack and gear transmission, driving the yarn-picking iron plate to hook the remaining yarn and deliver it to the new bobbin position. The torsion spring provides a restoring force, ensuring that the rotating arm automatically returns to its initial position after the wire is loaded, forming a closed-loop automated process that solves the problems of low efficiency and large positional deviation in manual wire loading.

[0014] In a structure that optimizes the aforementioned solution, a baffle plate is also included. The baffle plate is mounted on the mounting plate C, and the stop arm on the baffle plate is positioned to engage with the rotating arm. When the rotating arm returns to its original position, it will stop upon contact with the stop arm on the baffle plate, thus preventing excessive torsion spring force from damaging the cylinder.

[0015] Furthermore, the baffle has an elongated groove, through which it is fixed to the mounting plate C. The installation position of the baffle can be adjusted via the groove. The elongated groove allows for adjustable baffle position to adapt to the installation precision requirements of different equipment, ensuring the accuracy and safety of the reset action.

[0016] In a structure that optimizes the aforementioned solution, a positioning plate and a positioning screw are also included. The positioning plate is fixed to the cylinder housing by the positioning screw, and a slot is formed on the positioning plate, which mates with the position of the rotating arm. The slot on the positioning plate guides the movement of the rotating arm. When the rotating arm moves, it stops when it encounters the positioning screw. The stopping position of the rotating arm can be adjusted by adjusting the position of the positioning screw. The slot on the positioning plate provides guidance for the movement of the rotating arm, and the positioning screw acts as a limiting point. By adjusting the position of the screw, the rotation angle of the rotating arm can be finely adjusted, ensuring that the yarn pick accurately places the yarn in the designated position on the new bobbin, avoiding yarn feeding failure or yarn tangling problems caused by positional deviation, and improving the accuracy and reliability of yarn feeding.

[0017] Compared to existing technologies, the pneumatic shaving and feeding device for texturing machines described in this utility model can automatically cut and retain the shavings after the full drum is wound, and can automatically feed and wind the shavings after the empty drum is loaded, without the need for manual operation. The specific benefits are as follows:

[0018] Through the coordinated design of the yarn end-keeping mechanism, yarn cutting mechanism, and yarn feeding mechanism, automatic yarn cutting, yarn end-keeping, and yarn feeding after full-bore winding are achieved, all without manual operation. This completely solves the cumbersome problems of traditional devices relying on manual reset, yarn end-keeping, and yarn feeding, significantly improving the continuity of the production process. The device adopts a single-spindle modular design, with the three main mechanisms of yarn cutting, yarn end-keeping, and yarn feeding set independently, making it easy to adapt to different models of texturing machines, especially meeting the high-efficiency and automated production needs of automatic doffing texturing machines. The device uses cylinders to drive the actions of each mechanism, resulting in a simple structure and low operating cost. The positioning notch and negative pressure yarn end-keeping component work together to ensure reliable yarn end-keeping. The adaptive yarn cutting angle and precise positioning design of the yarn feeding mechanism ensure the stability of yarn cutting and feeding, avoiding quality fluctuations caused by manual operation. This provides key technical support for the high efficiency and automation of textile production, possessing both practicality and promotional value. Attached Figure Description

[0019] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0020] Figure 1 This is a schematic diagram of the pneumatic shaving and feeding device for the texturing machine described in this utility model. Figure 1 .

[0021] Figure 2 This is a schematic diagram of the pneumatic shaving and feeding device for the texturing machine described in this utility model. Figure 2 .

[0022] Figure 3This is a schematic diagram of the yarn end-keeping mechanism described in this utility model. Figure 1 .

[0023] Figure 4 This is a schematic diagram of the yarn end-keeping mechanism described in this utility model. Figure 2 .

[0024] Figure 5 This is a schematic diagram of the yarn end-keeping mechanism described in this utility model. Figure 3 .

[0025] Figure 6 This is a schematic diagram of the slicing mechanism described in this utility model. Figure 1 .

[0026] Figure 7 This is a schematic diagram of the slicing mechanism described in this utility model. Figure 2 .

[0027] Figure 8 This is a schematic diagram of the slicing mechanism described in this utility model. Figure 3 .

[0028] Figure 9 This is a schematic diagram of the wire-picking mechanism described in this utility model. Figure 1 .

[0029] Figure 10 This is a schematic diagram of the wire-picking mechanism described in this utility model. Figure 2 .

[0030] Figure 11 This is a schematic diagram of the wire-picking mechanism described in this utility model. Figure 3 .

[0031] Figure 12 This is a schematic diagram of the operation of the wire-picking mechanism described in this utility model.

[0032] Explanation of reference numerals in the attached figures:

[0033] 1. Thread end-keeping mechanism, 2. Thread cutting mechanism, 3. Thread feeding mechanism, 4. Frame, 5. Thread.

[0034] 101. Base; 102. Mounting plate A; 103. Fixing seat; 104. Positioning piece; 105. Cylinder A; 106. Ceramic component; 107. Housing A; 108. Inlet bushing; 109. Outlet bushing; 110. Fixing shaft.

[0035] 201. Mounting base; 202. Housing B; 203. Cutting nozzle; 204. Torsion spring; 205. Pressure plate; 206. Fixing block; 207. Rotating shaft; 208. Cylinder B; 209. Blade.

[0036] 301. Mounting plate C; 302. Baffle plate; 303. Wire guide plate; 304. Cylinder housing; 305. Cylinder liner; 306. Piston; 307. Rotor; 308. Rotary arm; 309. Torsion spring; 310. Positioning plate; 311. Positioning screw. Detailed Implementation

[0037] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0038] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0039] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0040] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0041] The pneumatic yarn cutting and feeding device for the texturing machine of this utility model includes a yarn end retention mechanism 1, a yarn cutting mechanism 2, and a yarn feeding mechanism 3, which are modularly integrated and installed through a frame 4: the yarn end retention mechanism 1 is fixed to the middle of the frame 4 through a base 101, the upper surface of the base 101 has a negative pressure port and integrates a ceramic part 106 as a yarn suction terminal, the mounting plate A102 is vertically fixed to the side of the base 101, the cylinder A105 is horizontally installed on the mounting plate A102 through a fixing seat 103 and its actuating end is hinged to one end of the positioning piece 104, the positioning piece 104 is rotatably connected to the mounting plate A102 through a fixing shaft 110, and the other end has a notch for hooking the yarn 5, the housing A107 of the negative pressure yarn retention component is fixed to the inside of the mounting plate A102. The inlet sleeve 108 is connected to the ceramic part 106, and the outlet sleeve 109 is connected to an external negative pressure air source through an air pipe. When the cylinder A105 extends, the positioning plate 104 rotates counterclockwise around the fixed shaft 110, the notch end is raised and the yarn 5 is guided to the top of the ceramic part 106, and the negative pressure airflow draws the yarn in and retains it through the ceramic part 106; the filament cutting mechanism 2 is fixed to the rear of the filament end retention mechanism 1 through the mounting base 201, the housing B202 is connected to the mounting base 201 through bolts and a torsion spring 204 is set between the two to allow the housing B202 to swing around the bolt axis to adapt to the angle of the trough box cover plate, the cylinder B208 is horizontally fixed to the housing B202 through the pressure plate 205 and the actuating end is hinged to the rotating shaft 207 of the filament cutting port 203, the filament cutting port 20 3. The fixed block 206 is rotatably connected to the housing B202, and the blade 209 is installed on the inner edge. When the cylinder B208 is activated, the cutting nozzle 203 rotates upward around the fixed block 206, and the blade 209 cuts into the yarn 5 path. With the help of the positioning plate 104, the yarn position is fixed to achieve precise cutting. The elastic force of the torsion spring 204 ensures that the housing B202 always fits against the slotted box and avoids cutting deviation due to equipment vibration. The yarn feeding mechanism 3 is fixed to the right side of the yarn end retention mechanism 1 by the mounting plate C301. The cylinder housing 304 is horizontally installed on the mounting plate C301. The piston 306 inside is provided with cylinder sleeves 305 at both ends to limit the movement stroke. The piston 306 is provided with a rack on the outside and meshes with the gear of the rotor 307. The shaft end of the rotor 307 is connected to A rotating arm 308 is connected to a wire-picking iron piece 303 fixed at its end. A torsion spring 309 is provided between the rotating arm 308 and the cylinder housing 304 to provide a reset elastic force. A baffle 302 is fixed on the mounting plate C301. Its long groove allows adjustment of the baffle position and cooperates with the end of the rotating arm 308 for limiting. A positioning plate 310 is set on the outside of the cylinder housing 304. The groove cooperates with the rotating arm 308, and the positioning screw 311 can finely adjust the rotation angle of the rotating arm 308. When the piston 306 moves to the left under the pneumatic drive, the rack drives the rotor 307 to rotate, and the rotating arm 308 rotates clockwise. The wire-picking iron piece 303 hooks the remaining yarn 5 and sends it to the surface of the new bobbin. When the piston 306 resets, the torsion spring 309 drives the rotating arm 308 to rotate counterclockwise until it stops at the limit of the baffle 302.

[0042] Working principle of the device:

[0043] 1. Cut the full tube into strips, leaving the top part intact:

[0044] After the full cylinder signal is detected, cylinder A105 extends, the notch of positioning plate 104 lifts up to hook yarn 5 and guide it to ceramic part 106, and the negative pressure air source starts to suck in the yarn; at the same time, cylinder B208 drives the cutting nozzle 203 to lift up, and the blade 209 cuts the yarn, completing the end-keeping and cutting.

[0045] 2. Automatic yarn feeding from empty cylinders:

[0046] After the new bobbin is in place, the cylinder of the yarn feeding mechanism is vented, the piston 306 drives the rotating arm 308 to rotate, the picking iron plate 303 hooks the remaining yarn to the starting position of the bobbin, and the torsion spring 309 and the baffle plate 302 cooperate to achieve precise reset, ensuring that the yarn feeding position is consistent.

[0047] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A pneumatic slicing and feeding device for a texturing machine, characterized in that: It includes a thread end-keeping mechanism (1), a thread cutting mechanism (2), and a thread feeding mechanism (3). The thread end-keeping mechanism (1), the thread cutting mechanism (2), and the thread feeding mechanism (3) are fixed on the frame (4). The thread cutting mechanism (2) is located at the rear of the thread end-keeping mechanism (1), and the thread feeding mechanism (3) is located on one side of the thread end-keeping mechanism (1).

2. The pneumatic slicing and feeding device for a texturing machine according to claim 1, characterized in that: The thread retention mechanism (1) includes a base (101), a mounting plate A (102), a positioning plate (104), a cylinder A (105), and a negative pressure thread retention assembly. The base (101) is fixed on the frame (4). The mounting plate A (102) is fixedly connected to the base (101). The cylinder A (105) is fixed on the mounting plate A (102). The positioning plate (104) is rotatably mounted on the mounting plate A (102). One end of the positioning plate (104) is connected to the actuating end of the cylinder A (105). The negative pressure thread retention assembly is fixed on the mounting plate A (102).

3. The pneumatic shaving and feeding device for a texturing machine according to claim 2, characterized in that: The negative pressure wire retention assembly includes a ceramic component (106), a housing A (107), an inlet bushing (108), and an outlet bushing (109). The housing A (107) is fixed on the mounting plate A (102). The inlet bushing (108) and the outlet bushing (109) are fixed inside the housing A (107). The ceramic component (106) is set on the base (101) and connected to the inlet bushing (108). An external air pipe is connected between the inlet bushing (108) and the outlet bushing (109).

4. The pneumatic shaving and feeding device for a texturing machine according to claim 2, characterized in that: The positioning piece (104) has a notch.

5. The pneumatic shaving and feeding device for a texturing machine according to claim 1, characterized in that: The shredding mechanism (2) includes a mounting base (201), a housing B (202), a shredding opening (203), a pressure plate (205), a fixing block (206), a rotating shaft (207), a cylinder B (208), and a blade (209). The mounting base is fixed on the frame (4). The housing B (202) is connected to the mounting base (201) by bolts. The cylinder B (208) is fixed on the housing B (202) by the pressure plate (205). The fixing block (206) is fixed on the housing B (202). The shredding opening (203) is rotatably mounted on the fixing block (206). The rotating shaft (207) is mounted on the shredding opening (203). The actuating end of the cylinder B (208) is connected to the rotating shaft (207). The blade (209) is mounted on the shredding opening (203).

6. The pneumatic slicing and feeding device for a texturing machine according to claim 5, characterized in that: It also includes a torsion spring (204), which is mounted on a bolt and has its two ends respectively attached to the mounting base (201) and the housing B (202).

7. The pneumatic shaving and feeding device for a texturing machine according to claim 1, characterized in that: The wire feeding mechanism (3) includes a mounting plate C (301), a wire picking iron piece (303), a cylinder housing (304), a cylinder liner (305), a piston (306), a rotor (307), a rotating arm (308), and a torsion spring (309). The mounting plate C (301) is fixed on the frame (4), the cylinder housing (304) is fixed on the mounting plate C (301), the piston (306) is located inside the cylinder housing (304), the cylinder housing (304) is provided with cylinder liners (305) at both ends, the rotor (307) is located inside the cylinder housing (304), the piston (306) meshes with the rotor (307), the rotating arm (308) is connected to the rotor (307), the wire picking iron piece (303) is provided on the rotating arm (308), one end of the torsion spring (309) is fixed on the cylinder housing (304), and the other end is connected to the rotating arm (308).

8. The pneumatic slicing and feeding device for a texturing machine according to claim 7, characterized in that: It also includes a baffle (302), which is mounted on the mounting plate C (301), and the baffle (302) is positioned to match the rotating arm (308).

9. The pneumatic slicing and feeding device for a texturing machine according to claim 8, characterized in that: The baffle (302) has a long groove, and the baffle (302) is fixed to the mounting plate C (301) through the long groove.

10. The pneumatic slicing and feeding device for a texturing machine according to claim 7, characterized in that: It also includes a positioning plate (310) and a positioning screw (311). The positioning plate (310) is fixed to the cylinder housing (304) by the positioning screw (311). The positioning plate (310) has a slot, which is matched with the position of the rotating arm (308).

Images