A spinning machine with a pressing structure

Abstract

This utility model relates to the field of spinning machine technology, and in particular to a spinning machine with a pressing structure. The spinning machine includes a feeding mechanism located above the front end and a drafting mechanism located above the rear end. The pressing mechanism on the spinning machine is used to press the fiber sliver during drafting. It includes: an adjustment component comprising supports fixed to the middle two sides of the top of the spinning machine, with extension frames fixed to the front ends of the supports; and a main component comprising a crossbeam positioned between the two extension frames, with shafts fixed at both ends of the crossbeam. A rotating drum is rotatably mounted between the two shafts, and the outer wall of the rotating drum has several symmetrically distributed arc-shaped grooves. A guide rod is fixed between the two shafts. A servo motor drives the pressing rollers to perform linear reciprocating pressing on the fiber sliver, and a cylinder dynamically adjusts the pressing force, significantly improving the uniformity and density of fiber arrangement, effectively increasing yarn strength and evenness, while reducing hairiness and breakage rate.

Description

Technical Field

[0001] This utility model relates to the field of spinning machine technology, specifically to a spinning machine with a pressing structure. Background Technology

[0002] In the textile industry, the ring spinning machine is a key piece of equipment for processing roving into fine yarn, and its performance directly affects yarn quality and production efficiency. With the continuous development of textile technology, modern ring spinning machines have gradually developed a variety of auxiliary functional structures to optimize yarn quality based on the traditional drafting and twisting process. According to CN220846402U, a yarn stretching mechanism for a flax wet spinning ring spinning machine is disclosed. This technology discloses a technical solution including "a ring spinning machine, a motor fixedly connected to the right side of the ring spinning machine, a support rod rotatably connected through the inner wall of the right side of the ring spinning machine, a disc fixedly connected to the outer wall of the support rod, a groove formed on the outer wall of the disc, a round rod slidably connected through the left side of the ring spinning machine, a round block fixedly connected to the outer wall of the round rod near the left side of the ring spinning machine, the round block being elastically connected to the ring spinning machine via a spring, a sliding rod fixedly connected to the rear surface of the round rod, a ring fixedly connected to the front surface of the round rod, and a baffle hinged to the front surface of the ring spinning machine". This technology has the technical effect of "the motor drives the disc to rotate, which in turn drives the sliding groove to rotate. Through the sliding groove, the sliding rod and the round rod slide left and right repeatedly, and the ring pulls the yarn left and right, which can make the yarn more uniform after processing and improve the quality of the processed yarn at the same time". When the fiber bundles on the feeding mechanism pass through the drafting mechanism, due to the lack of an effective yarn pressing control mechanism, the fiber arrangement often appears loose and disordered. This structural arrangement defect directly leads to insufficient fiber distribution uniformity, which in turn causes quality problems such as uneven yarn structure and poor yarn evenness in the subsequent twisting process. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a spinning machine with a pressing structure. A servo motor drives the pressing rollers to perform linear reciprocating pressing on the fiber slivers. Combined with the dynamic adjustment of the pressing force by a cylinder, the fiber uniformity and density are significantly improved, effectively enhancing yarn strength and evenness, while reducing hairiness and breakage rate.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a spinning frame with a pressing structure, comprising a spinning frame, a feeding mechanism disposed above the front end of the spinning frame, a drafting mechanism disposed above the rear end of the spinning frame, and a pressing mechanism disposed on the spinning frame for pressing the fiber sliver during drafting, comprising: The adjustment assembly includes brackets fixed to the middle two sides of the top of the spinning machine, with an extension frame fixed to the front end of the brackets; The main component includes a cross frame set between the two extension frames. A shaft frame is fixed at both ends of the cross frame. A rotating cylinder is rotatably installed between the two shaft frames. Several arc-shaped grooves are symmetrically distributed on the outer wall of the rotating cylinder. A guide rod is fixed between the two shaft frames. A servo motor is installed on the outer wall of the extension frame to drive the rotating cylinder to rotate. A shaft lug is fixed at both ends of the top of the cross frame. The actuation component includes several sliders slidably mounted on a guide rod, with a pressure roller rotatably mounted at the lower end of the sliders and a cam rotatably mounted at the upper end of the sliders and located inside an arc-shaped groove.

[0005] Preferably, the adjustment assembly further includes a cylinder pivotally connected to the upper end of the bracket, and the output end of the cylinder is pivotally connected to the lug.

[0006] Preferably, the actuating component further includes a sliding sleeve fixed inside the slider, and the slider is slidably mounted with the guide rod through the sliding sleeve.

[0007] Preferably, the contour of the arc-shaped groove matches the motion trajectory of the cam, so that when the drum rotates, the pressure roller is driven to reciprocate along the guide rod by the cam.

[0008] Preferably, the axis of the pressure roller is parallel to the axis of the rotating drum, and a V-groove is provided on the outside of the pressure roller.

[0009] Preferably, a pressure sensor is installed inside the pressure roller and is used to monitor the pressing pressure applied by the pressure roller (432) to the yarn. Beneficial effects

[0010] This invention provides a spinning machine with a pressing structure. Compared with the prior art, it has the following advantages: 1. The drum rotates under the drive of the servo motor, which drives the arc groove on its outer wall to move, so that the cam moves along the arc groove trajectory, pushes the slider to slide along the guide rod, and makes the pressure roller reciprocate in a straight line against the fiber sliver; effectively improves the uniformity and density of fiber arrangement, can significantly improve the strength and evenness of yarn, and reduce yarn hairiness and breakage rate.

[0011] 2. When it is necessary to adjust the pressing force or adapt to different yarn varieties, the main component is driven by a cylinder to change the contact pressure between the pressing roller and the fiber sliver; this enables the pressing mechanism to have dynamic adjustment capability. The linear motion of the cylinder is converted into a smooth angular change through the pivot point, ensuring that the relative position accuracy of each component is maintained during the adjustment process. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the structure of the medium-pressure wire mechanism of this utility model; Figure 3This is a schematic diagram of the main components in this utility model; Figure 4 This is a schematic diagram of the structure of the execution component in this utility model.

[0013] In the diagram: 1. Spinning machine; 2. Feeding mechanism; 3. Drafting mechanism; 4. Pressing mechanism; 41. Adjustment component; 411. Support frame; 412. Extension frame; 413. Cylinder; 42. Main component; 421. Cross frame; 422. Shaft frame; 423. Rotary drum; 424. Arc groove; 425. Guide rod; 426. Servo motor; 427. Shaft lug; 43. Actuation component; 431. Slider; 432. Pressure roller; 433. Cam; 434. Sliding sleeve. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Please see Figure 1 - Figure 4 This utility model provides a technical solution: a spinning machine with a pressing structure, including a spinning machine 1, a feeding mechanism 2 provided above the front end of the spinning machine 1, a drafting mechanism 3 provided above the rear end of the spinning machine 1, and a pressing mechanism 4 provided on the spinning machine 1 for pressing the fiber sliver during drafting, including: The adjustment assembly 41 includes brackets 411 fixed on both sides of the middle of the top of the spinning machine 1, and an extension frame 412 fixed to the front end of the brackets 411. The main component 42 includes a cross frame 421 disposed between two side extension frames 412. A shaft frame 422 is fixed at both ends of the cross frame 421. A rotating cylinder 423 is rotatably mounted between the two shaft frames 422. Several arc-shaped grooves 424 are symmetrically distributed on the outer wall of the rotating cylinder 423. A guide rod 425 is fixed between the two shaft frames 422. A servo motor 426 is installed on the outer wall of the extension frame 412 and is used to drive the rotating cylinder 423 to rotate. A shaft lug 427 is fixed at both ends of the top of the cross frame 421. The execution component 43 includes a plurality of sliders 431 slidably mounted on the guide rod 425. A pressure roller 432 is rotatably mounted on the lower end of the slider 431, and a cam 433 is rotatably mounted on the upper end of the slider 431 and located inside the arc groove 424.

[0016] In this embodiment, the rotating drum 423 is driven by the servo motor 426 to rotate, which in turn drives the arc groove 424 on its outer wall to move, causing the cam 433 to move along the trajectory of the arc groove 424, pushing the slider 431 to slide along the guide rod 425, so that the pressure roller 432 moves back and forth in a straight line against the fiber sliver; effectively improving the uniformity and density of fiber arrangement, significantly improving the strength and evenness of yarn, and reducing yarn hairiness and breakage rate.

[0017] Specifically, the adjustment assembly 41 also includes a cylinder 413 pivotally connected to the upper end of the bracket 411, and the output end of the cylinder 413 is pivotally connected to the lug 427.

[0018] In this embodiment, when it is necessary to adjust the pressing force or adapt to different yarn varieties, the main component 42 is driven by the cylinder 413, thereby changing the contact pressure between the pressing roller 432 and the fiber sliver; so that the pressing mechanism 4 has dynamic adjustment capability, and the linear motion of the cylinder 413 is converted into a smooth angle change through the pivot point, ensuring that the relative position accuracy of each component is maintained during the adjustment process.

[0019] Specifically, the execution component 43 also includes a sliding sleeve 434 fixed inside the slider 431, and the slider 431 is slidably mounted with the guide rod 425 through the sliding sleeve 434.

[0020] In this embodiment, the sliding sleeve 434 is made of a low-friction coefficient material and forms a clearance fit with the guide rod 425, which ensures that the slider 431 can slide freely along the guide rod 425 and effectively limits radial runout.

[0021] Specifically, the contour of the arc groove 424 matches the motion trajectory of the cam 433, so that when the drum 423 rotates, the pressure roller 432 is driven to reciprocate along the guide rod 425 through the cam 433.

[0022] In this embodiment, when the drum 423 rotates under the drive of the servo motor 426, the cam 433 slides smoothly along the trajectory of the arc groove 424, accurately converting the rotational motion of the drum 423 into the linear reciprocating motion of the pressure roller 432 along the guide rod 425; ensuring that the pressing action of the pressure roller 432 on the fiber sliver has strict periodicity and consistency.

[0023] Specifically, the axis of the pressure roller 432 is parallel to the axis of the rotating drum 423, and a V-shaped groove is provided on the outside of the pressure roller 432.

[0024] In this embodiment, the V-groove structure on the outer surface of the pressure roller 432 can accurately guide and position the yarn. Its unique V-shaped cross-section design ensures that the yarn is always in the optimal stress position during the pressing process. When the pressure roller 432 reciprocates along the guide rod 425, the inclined surfaces on both sides of the V-groove simultaneously apply balanced radial pressure to the yarn. This design not only enhances the holding stability of the yarn and prevents the yarn from shifting or slipping during the pressing process, but also effectively improves the fiber arrangement density and compactness.

[0025] Specifically, a pressure sensor is installed inside the pressure roller 432 to monitor the pressing pressure applied by the pressure roller 432 to the yarn.

[0026] In this embodiment, the pressure sensor continuously collects pressure change data, and the control system dynamically adjusts the speed of the servo motor 426 and the pressure output of the cylinder 413 based on the feedback information to achieve closed-loop control of the pressure of the wire.

[0027] The working principle and usage process of this utility model are as follows: First, when it is necessary to adjust the pressing force or adapt to different yarn varieties, the main component 42 is driven by the cylinder 413, thereby changing the contact pressure between the pressing roller 432 and the fiber sliver; so that the pressing mechanism 4 has dynamic adjustment capability, and the linear motion of the cylinder 413 is converted into a smooth angle change through the pivot point, ensuring that the relative position accuracy of each component is maintained during the adjustment process. The rotating drum 423 rotates under the drive of the servo motor 426, which in turn drives the arc groove 424 on its outer wall to move, causing the cam 433 to move along the trajectory of the arc groove 424, pushing the slider 431 to slide along the guide rod 425, so that the pressure roller 432 moves back and forth in a straight line against the fiber sliver; effectively improving the uniformity and density of fiber arrangement, significantly improving the strength and evenness of yarn, and reducing yarn hairiness and breakage rate.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A spinning frame with a pressing structure, comprising a spinning frame (1), a feeding mechanism (2) disposed above the front end of the spinning frame (1), and a drafting mechanism (3) disposed above the rear end of the spinning frame (1), characterized in that: The spinning machine (1) is equipped with a pressing mechanism (4) for pressing the fiber sliver during drafting, including: The adjustment assembly (41) includes a bracket (411) fixed on both sides of the middle of the top of the spinning machine (1), and an extension frame (412) is fixed to the front end of the bracket (411). The main component (42) includes a cross frame (421) disposed between the two side extension frames (412). A shaft frame (422) is fixed at both ends of the cross frame (421). A rotating cylinder (423) is rotatably installed between the two shaft frames (422). Several arc-shaped grooves (424) are symmetrically distributed on the outer wall of the rotating cylinder (423). A guide rod (425) is fixed between the two shaft frames (422). A servo motor (426) is installed on the outer wall of the extension frame (412) and is used to drive the rotating cylinder (423) to rotate. A shaft lug (427) is fixed at both ends of the top of the cross frame (421). The actuation component (43) includes several sliders (431) slidably mounted on the guide rod (425), with a pressure roller (432) rotatably mounted on the lower end of the slider (431) and a cam (433) rotatably mounted on the upper end of the slider (431) and located inside the arc groove (424).

2. A spinning machine with a pressing structure according to claim 1, characterized in that: The adjustment assembly (41) also includes a cylinder (413) pivotally connected to the upper end of the bracket (411), and the output end of the cylinder (413) is pivotally connected to the lug (427).

3. A spinning machine with a pressing structure according to claim 1, characterized in that: The execution component (43) also includes a sliding sleeve (434) fixed inside the slider (431), and the slider (431) is slidably mounted with the guide rod (425) through the sliding sleeve (434).

4. A spinning machine with a pressing structure according to claim 1, characterized in that: The contour of the arc groove (424) matches the motion trajectory of the cam (433), so that when the drum (423) rotates, the pressure roller (432) is driven to reciprocate along the guide rod (425) through the cam (433).

5. A spinning machine with a pressing structure according to claim 1, characterized in that: The axis of the pressure roller (432) is parallel to the axis of the rotating drum (423), and a V-shaped groove is provided on the outside of the pressure roller (432).

6. A spinning machine with a pressing structure according to claim 1, characterized in that: The pressure roller (432) is equipped with a pressure sensor, which is used to monitor the pressure applied by the pressure roller (432) to the yarn.

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