Positioning device for tension bracket of spinning frame
By integrating the tensioning mechanism in the tension frame of the yarn machine and adopting an adjustable tensioning part and a short leather ring configuration, the problems of large volume of the tension frame structure, low installation space utilization rate and large friction resistance in the prior art are solved, and the tensioning force is dynamically adjusted and the resistance torque is reduced, which significantly improves the operating efficiency of the yarn machine.
Patent Information
- Application Number
- CN202510507315.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-21
- Publication Date
- 2025-06-03
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The structure of the existing tension frame of the yarn machine has large volume, low installation space utilization rate, and excessive friction resistance caused by long leather rings, resulting in yarn tension fluctuations and differences between spindles, affecting the uniformity of the yarn strips and the stability of the equipment.
A tension frame positioning device of a yarn machine is designed. By integrating the tensioning mechanism into the main structure of the lower pin, the axial displacement of the tensioning wheel is controlled by using an adjustable tensioning part to dynamically adjust the tensioning force. The detachable mating structure and the deformation self-locking characteristics of the lock plate are adopted to optimize the traditional long leather ring structure to the short leather ring configuration.
It effectively reduces the running resistance torque of the leather ring, improves the uniformity of the load distribution of the transmission system, reduces the differences between spindles, and improves the overall operating efficiency of the yarn machine.
Smart Images
Figure CN120082995A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of spinning machine production, and particularly relates to a positioning device for a tension frame of a spinning machine. Background Art
[0002] As a key device in the textile industry, the core function of a spinning machine is to convert roving into fine yarn that meets the process requirements through drafting and twisting processes. The stability of the yarn tension directly determines the quality of the spun yarn and the production efficiency.
[0003] In the prior art, the tension frame of a spinning machine generally uses a bottom pin as the basic support member, and the positioning of the tension adjustment mechanism is achieved through the cooperation of the bottom pin and the tension frame. However, the traditional bottom pin usually adopts a split structure design, and there is a fitting gap at its assembly interface with the tension frame, resulting in a relatively large overall structure volume and low utilization rate of the installation space;
[0004] At the same time, to meet the long-stroke tension adjustment requirements, the long apron used in supporting has a significant frictional resistance due to its too large moment of inertia, which easily causes yarn tension fluctuations and inter-spindle tension differences (i.e., spindle differences), resulting in an increase in the unevenness rate of the spun yarn.
[0005] In addition, the existing bottom pin adjustment mechanisms mostly rely on fixed positioning structures and cannot achieve dynamic and precise control of the tensioning force. During long-term operation, error accumulation is likely to occur due to component wear, seriously affecting the operation stability of the equipment and the consistency of the spun yarn quality.
[0006] In view of the above problems, we have introduced a positioning device for a tension frame of a spinning machine. Summary of the Invention
[0007] The present invention discloses a positioning device for a tension frame of a spinning machine, aiming to solve the technical problems in the background art.
[0008] To achieve the above object, the present invention adopts the following technical solutions:
[0009] A positioning device for a tension frame of a spinning machine includes a bottom pin. A groove is formed inside the bottom pin. Tensioning parts are arranged equidistantly on the bottom pin. Each tensioning part includes a locking plate and a toothed plate. The locking plate is arranged in a U-shaped structure and extends into the groove.
[0010] Two toothed plates are fixed equidistantly inside the groove in a group and symmetrically arranged outside the locking plate. Teeth are arranged on the locking plate inside the groove for cooperation with the toothed plates.
[0011] In a preferred solution, each tensioning part further includes a locking nut. Notches are formed on the toothed plates. The locking nut is movably arranged inside the notches of the two toothed plates. Planes are symmetrically formed on the locking nut, and the locking nut is slidably connected to the notch parts of the toothed plates through the planes.
[0012] In a preferred embodiment, the tensioning part further includes a mounting rod, which is arranged in a square structure and is disposed inside the locking plate. One side of the mounting rod is fixedly connected to a fixing plate, and the side of the mounting rod away from the mounting rod is connected to a movable plate by screws.
[0013] In a preferred embodiment, a rotating shaft is rotatably connected to the fixing plate, a limiting cross block is rotatably connected to the movable plate, and a limiting cross groove is formed at one end of the rotating shaft.
[0014] In a preferred embodiment, protrusions are equidistantly arranged on the outer side of the rotating shaft, and the part of the protrusion in contact with the fine yarn is arranged in an arc structure.
[0015] In a preferred embodiment, a tensioning wheel is movably connected to the outer side of the rotating shaft, and grooves for cooperating with the protrusions are equidistantly formed in the inner core hole of the tensioning wheel.
[0016] In a preferred embodiment, one side of the lower pin is fixedly connected to a mounting part, which is arranged in a hollow structure. A connecting rod is fixedly connected inside the mounting part, the connecting rod is arranged in an L-shaped structure, and mounting holes are symmetrically formed in the connecting rod.
[0017] In a preferred embodiment, an inclined surface is formed on one side of the lower pin, and the angle of the inclined surface is the same as the angle of the corner of the mounting part.
[0018] In a preferred embodiment, a locking screw hole is formed in the lower pin, a positioning hole is formed in the locking plate, and a waist-shaped groove for cooperating with the positioning hole is formed in the lower pin.
[0019] A positioning device for a tensioning frame of a spinning frame provided by the present invention has the following advantages:
[0020] By integrating the tensioning mechanism inside the main structure of the lower pin and using an adjustable tensioning part to control the axial displacement of the tensioning wheel, the tensioning force can be dynamically adjusted according to process requirements. Moreover, the tensioning wheel and the rotating shaft adopt a separable matching structure, and a modular adjustment unit is formed by the engagement and positioning of the protrusions and the grooves. Combining with the deformation self-locking characteristic of the locking plate, the traditional long apron structure is optimized into a short apron configuration. While ensuring the adjustment accuracy of the yarn tension, the present invention effectively reduces the running resistance moment of the apron, improves the load distribution uniformity of the transmission system, thereby systematically reducing the difference between spindles and significantly improving the overall operating efficiency of the spinning frame. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 It is a front perspective view of a positioning device for a tensioning frame of a spinning frame proposed by the present invention.
[0022] Figure 2 The rear perspective view of a positioning device for the tension frame of a spinning frame proposed by the present invention.
[0023] Figure 3 The overall schematic diagram of the lower pin and lock plate structure of a positioning device for the tension frame of a spinning frame proposed by the present invention.
[0024] Figure 4 The schematic diagram of the lower view of the lower pin and lock plate of a positioning device for the tension frame of a spinning frame proposed by the present invention.
[0025] Figure 5 The side view sectional view of the lower pin of a positioning device for the tension frame of a spinning frame proposed by the present invention.
[0026] Figure 6 The sectional perspective view of the lower pin of a positioning device for the tension frame of a spinning frame proposed by the present invention.
[0027] Figure 7 The schematic diagram of the tensioning part structure of a positioning device for the tension frame of a spinning frame proposed by the present invention.
[0028] Figure 8 The exploded view of the tensioning part of a positioning device for the tension frame of a spinning frame proposed by the present invention.
[0029] Figure 9 It is Figure 8 The enlarged view of the position A in
[0030] In the attached drawings: 1. Lower pin; 2. Installation part; 3. Locking screw hole; 4. Tensioning part; 41. Lock plate; 42. Tooth plate;
[0031] 43. Locking nut; 44. Additional rod; 45. Movable plate; 46. Fixed plate; 47. Rotating shaft; 48. Tensioning wheel;
[0032] 49. Protrusion; 410. Groove; 411. Positioning hole; 412. Limiting cross block; 413. Limiting cross groove; 5. Inclined surface; 6. Connecting rod; 7. Installation hole; 8. Groove body. Detailed implementation manners
[0033] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Components of the embodiments of the present application described and marked in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the present application to be protected, but only represents the selected embodiments of the present application. All other embodiments obtained by those skilled in the art based on the embodiments of the present application without creative efforts belong to the scope of protection of the present application.
[0034] A positioning device for a tension frame of a spinning frame disclosed by the present invention.
[0035] Referring to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 and Figure 9 As shown in
[0036] 、
[0037] 、
[0038] Referring to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 and Figure 9As shown, in a preferred embodiment, the tensioning part 4 further includes a locking nut 43. Notches are formed in the toothed plates 42. The locking nut 43 is movably arranged inside the notches of the two toothed plates 42. Planes are symmetrically formed on the locking nut 43. The locking nut 43 is slidably connected to the notch parts of the toothed plates 42 through the planes. A locking screw hole 3 is formed in the upper part of the lower pin 1, a positioning hole 411 is formed in the locking plate 41, and a waist-shaped groove for cooperating with the positioning hole 411 is formed in the lower pin 1.
[0039] In this embodiment: When it is necessary to adjust the axial position of the locking plate 41, the operator first loosens the screw. At this time, the bottom of the locking plate 41 generates an axial displacement under the guiding action of the waist-shaped groove, and at the same time, the meshing teeth of the teeth and the toothed plate 42 generate relative sliding. After the locking plate 41 moves to the target position, the screw is passed through the positioning hole 411 and screwed into the hole of the locking nut 43, so that the sliding plane of the locking nut 43 generates a surface contact pressing force with the groove body 8. At the same time, the screw and the waist-shaped groove form a three-point constraint, and finally the dual positioning of the locking plate 41 in the radial and axial directions is realized.
[0040] Referring to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 and Figure 9 As shown in, in a preferred embodiment, the tensioning part 4 further includes a mounting rod 44. The mounting rod 44 is arranged in a square structure. The mounting rod 44 is arranged inside the locking plate 41. One side of the mounting rod 44 is fixedly connected with a fixing plate 46, and the side of the mounting rod 44 away from the mounting rod 44 is connected with a movable plate 45 through a screw.
[0041] In this embodiment: When the locking plate 41 generates an elastic deformation under the action of an external force, a surface contact friction pair is formed between the inner wall of the U-shaped opening end and the square outer surface of the mounting rod 44. During this deformation process, the fixing plate 46 and the movable plate 45 respectively abut against both sides of the locking plate 41, and the axial pre-tightening force generated by the screw enables the mounting rod 44 to form a static friction force with the inner cavity of the locking plate 41.
[0042] Referring to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 and Figure 9 As shown in, in a preferred embodiment, a rotating shaft 47 is rotatably connected to the fixing plate 46, a limiting cross block 412 is rotatably connected to the movable plate 45, and a limiting cross groove 413 is formed at one end of the rotating shaft 47.
[0043] In this embodiment: When the limiting cross block 412 is embedded in the limiting cross groove 413 at the end of the rotating shaft 47, spatial limitation is formed through the four-way contact surface, which not only allows the rotating shaft 47 to freely rotate within a set angle, but also effectively inhibits radial offset and axial movement.
[0044] Refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 9 As shown in
[0045] In this embodiment: The rotating shaft 47 can act as a tensioning wheel body by itself. The convex 49 on its surface is in flexible contact with the fine yarn, which can avoid the situation of the fine yarn generating flying hairs.
[0046] Refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 9 As shown in
[0047] In this embodiment: When the tensioning wheel 48 is installed, the convex 49 contacts the groove 410, thereby realizing the limitation of the tensioning wheel 48 and making it rotate following the rotating shaft 47. By adjusting the position of the above-mentioned adjusting lock plate 41, the tensioning force of the tensioning wheel 48 can be adjusted.
[0048] Refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 9 As shown in
[0049] In this embodiment: The installation part 2 and the connecting rod 6 can install this device between two adjacent rollers and install it through the installation hole 7.
[0050] Referring to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 9 As shown in
[0051] In this embodiment: The inclined surface 5 is used to contact the fine yarn, so that the fine yarn will not contact the sharp corners during the movement, ensuring the stability of the fine yarn conveying, and also avoiding the situation of flying hairs.
[0052] Working principle: When the operator applies a thrust along the axis direction of the trough body 8 to insert the lock plate 41, the U-shaped opening end of the lock plate 41 is radially extruded by the tapered structure of the trough body 8 to generate elastic deformation, and its two side walls expand outwards. During this process, the relative displacement occurs between the teeth and the tooth grooves of the toothed plate 42. After removing the external force, the screw is screwed into the locking screw hole 3, so that the screw abuts against the lock plate 41 to realize two-way self-locking through the synergistic action of the tooth surface friction resistance and the deformation stress. On the basis of the axial displacement constraint, this structure uses the tooth surface meshing angle design to generate an anti-torsion moment to ensure the dynamic positioning stability of the tension frame during high-speed operation;
[0053] When the axial position of the lock plate 41 needs to be adjusted, loosen the screws above and below the lower pin 1 to release the pre-tightening force. The bottom of the lock plate 41 generates axial sliding along the guiding surface of the waist-shaped groove, and the teeth are separated from the toothed plate 42, so as to realize sliding. After the target position is located, the screw is passed through the positioning hole 411 and screwed into the locking nut 43, so that the sliding plane of the locking nut 43 forms a surface contact and pressing with the trough body 8, so that the screw abuts against the lock plate 41 to realize two-way self-locking through the synergistic action of the tooth surface friction resistance and the deformation stress, realizing the double-degree-of-freedom locking of the lock plate 41 in the radial and axial directions;
[0054] During the elastic deformation process of the lock plate 41, the inner wall of its U-shaped opening end and the square outer surface of the added rod 44 form a surface contact friction pair. The fixed plate 46 and the movable plate 45 respectively abut against both sides of the lock plate 41, and the static friction constraint is established through the axial pre-tightening force applied by the screw. When the limiting cross block 412 is embedded in the limiting cross groove 413 at the end of the rotating shaft 47, the four-way contact surface forms a spatial limit, while allowing the rotating shaft 47 to freely rotate within the set angle, suppressing the radial offset and axial end movement;
[0055] The protrusion 49 on the surface of the rotating shaft 47 is in flexible contact with the fine yarn to avoid the generation of flying hairs due to yarn wear. When installing the tension pulley 48, the inner core hole groove 410 thereof forms a circumferential fit with the protrusion 49, so that the tension pulley 48 rotates synchronously with the rotating shaft 47. By adjusting the axial position of the locking plate 41, the deformation stress distribution between the additional rod 44 and the locking plate 41 is changed, thereby precisely controlling the tension of the tension pulley 48 on the yarn.
[0056] As mentioned above, the above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. The substitution may be a substitution of part of the structure, device, method steps, or a complete technical solution. Any equivalent substitution or change made according to the technical solution and inventive concept of the present invention should be covered within the protection scope of the present invention.
Claims
1. A spun yarn frame tension frame positioning device, comprising a lower pin (1), characterized in that: A groove body (8) is provided inside the lower pin (1), and tensioning parts (4) are equidistantly provided on the lower pin (1), wherein the tensioning parts (4) include a locking plate (41) and a tooth plate (42), wherein the locking plate (41) is provided as a U-shaped structure, and the locking plates (41) extend into the groove body (8); The tooth plates (42) are fixed in groups of two at equal distances inside the slot body (8) and are symmetrically arranged on the outside of the lock plate (41); teeth for use with the tooth plates (42) are arranged on the lock plate (41) and located inside the slot body (8).
2. The spinning frame tension frame positioning device according to claim 1, characterized in that: The tensioning portion (4) further comprises a locking nut (43), the tooth plates (42) are each provided with a notch, the locking nut (43) is movably arranged inside the notch of the two tooth plates (42), the locking nut (43) is symmetrically provided with a plane, and the locking nut (43) is slidably connected to the notch of the tooth plates (42) via the plane.
3. The spinning frame tension frame positioning device according to claim 1, characterized in that: The tensioning portion (4) further comprises a mounting rod (44), the mounting rod (44) being arranged in a square structure, the mounting rod (44) being arranged inside the locking plate (41), one side of the mounting rod (44) being fixedly connected to a fixing plate (46), and the side of the mounting rod (44) away from the mounting rod (44) being connected to a movable plate (45) via screws.
4. The spinning frame tension frame positioning device according to claim 3 is characterized in that: The fixed plate (46) is rotatably connected to a rotating shaft (47), the movable plate (45) is rotatably connected to a limiting cross block (412), and one end of the rotating shaft (47) is provided with a limiting cross groove (413).
5. The spinning frame tension frame positioning device according to claim 4, characterized in that: Protrusions (49) are equidistantly arranged on the outer side of the rotating shaft (47), and the portion where the protrusions (49) contact the spun yarn is configured as an arc-shaped structure.
6. The spinning frame tension frame positioning device according to claim 5, characterized in that: A tension wheel (48) is movably connected to the outer side of the rotating shaft (47), and grooves (410) for use with the protrusions (49) are equidistantly provided on the inner core hole of the tension wheel (48).
7. The spinning frame tension frame positioning device according to claim 1, characterized in that: A mounting portion (2) is fixedly connected to one side of the lower pin (1); the mounting portion (2) is configured as a hollow structure; a connecting rod (6) is fixedly connected inside the mounting portion (2); the connecting rod (6) is configured as an L-shaped structure; and mounting holes (7) are symmetrically provided on the connecting rod (6).
8. The spinning frame tension frame positioning device according to claim 1, characterized in that: A slope (5) is provided on one side of the lower pin (1), and the angle of the slope (5) is consistent with the angle of the corner of the mounting portion (2).
9. The spinning frame tension frame positioning device according to claim 1, characterized in that: The lower pin (1) is provided with a locking screw hole (3), the locking plate (41) is provided with a positioning hole (411), and the lower pin (1) is provided with a waist groove used in conjunction with the positioning hole (411).