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CN-224212857-U - Accurate adjustment mechanism of spinning machine leaf spring cradle pressure

CN224212857UCN 224212857 UCN224212857 UCN 224212857UCN-224212857-U

Abstract

The utility model discloses a precision pressure regulating mechanism for a plate spring cradle of a spinning machine, which relates to the technical field of parts of spinning machines and comprises a hollow rocker arm, wherein an adjustable plate spring frame is arranged at the end part of the hollow rocker arm in a rectangular array, limit sliding grooves corresponding to the adjustable plate spring frame are formed in the upper part and the two sides of the hollow rocker arm, the adjustable plate spring frame is provided with a hollow fixed seat which is arranged at the inner side of the hollow rocker arm, the hollow fixed seat comprises a U-shaped connecting frame, an elastic plate spring is arranged at the end part of the U-shaped connecting frame, threaded holes are symmetrically formed in the upper part of the U-shaped connecting frame, and the position of the end part of a threaded regulating column is regulated through threaded fit between the threaded holes and threaded regulating columns, so that the position of a regulating pressing plate at the inner side of the U-shaped connecting frame is regulated, and the end part of the elastic plate spring is extruded through the regulating pressing plate, so that the spring force of the elastic plate spring is regulated.

Inventors

  • LU SHIDI

Assignees

  • 常州市布迪拉纺机设备有限公司

Dates

Publication Date
20260508
Application Date
20250520

Claims (8)

  1. 1. The pressure precise regulating mechanism of the plate spring cradle of the spinning machine is characterized by comprising a hollow rocker arm (1), wherein the end part of the hollow rocker arm (1) is provided with an adjustable plate spring frame (7) in a rectangular array, and limit sliding grooves (4) corresponding to the adjustable plate spring frame (7) are formed in the upper part and the two sides of the hollow rocker arm (1); The adjustable plate spring frame (7) is provided with a hollow fixed seat (71) which is arranged on the inner side of the hollow rocker arm (1), the hollow fixed seat (71) comprises a U-shaped connecting frame (711), and an elastic plate spring (72) is arranged at the end part of the U-shaped connecting frame (711); Screw holes (712) are symmetrically formed in the upper portion of the U-shaped connecting frame (711), screw threads of the screw holes (712) close to one end of the elastic plate spring (72) are connected with screw thread adjusting columns (713), and the screw thread adjusting columns (713) are located above the elastic plate spring (72).
  2. 2. The precise pressure regulating mechanism for the plate spring cradle of spinning machine according to claim 1, wherein the elastic plate spring (72) is arranged in a U-shaped manner at one end of the inner side of the U-shaped connecting frame (711), and the bottom of the threaded regulating column (713) is contacted with the elastic plate spring (72) above one end of the U-shaped connecting frame (711) through the regulating pressing plate (714).
  3. 3. The precise pressure regulating mechanism of the plate spring cradle of spinning machine of claim 2, wherein the bottom of the U-shaped connecting frame (711) is fixedly connected with a limiting stop rod (71), one end of the U-shaped connecting frame (711) far away from the elastic plate spring (72) is symmetrically provided with a positioning clamping groove (716), the elastic plate spring (72) is positioned above the limiting stop rod (715), and positioning protrusions corresponding to the positioning clamping grooves (716) are uniformly arranged on two sides of the elastic plate spring (72).
  4. 4. The precise pressure regulating mechanism for the plate spring cradle of the spinning machine according to claim 3, wherein an end pressure head (73) is fixedly connected to one end, far away from the U-shaped connecting frame (711), of the elastic plate spring (72), a metal elastic sheet (74) is fixedly connected to the inner side of the U-shaped connecting frame (711), and an inverted U-shaped groove is formed in the bottom of the U-shaped connecting frame (711).
  5. 5. The precise regulating mechanism for the pressure of the plate spring cradle of the spinning machine according to claim 4, wherein the lengths of the limiting sliding grooves (4) are sequentially increased from front to back, a positioning pressing plate (8) is arranged above each limiting sliding groove (4), and one end, far away from the U-shaped connecting frame (711), of the threaded regulating column (713) penetrates through the positioning pressing plate (8) and extends to the upper side.
  6. 6. The precision pressure adjusting mechanism for the plate spring cradle of the spinning machine according to claim 5, wherein the positioning pressing plate (8) is in threaded connection with a locking bolt (9), and the end part of the locking bolt (9) penetrates through the limit chute (4) to be in threaded connection with a threaded hole (712) on the U-shaped connecting frame (711); The elastic plate spring (72) is arranged at one end far away from the U-shaped connecting frame (711) in a downward inclined mode.
  7. 7. The precise pressure regulating mechanism for the plate spring cradle of the spinning machine according to claim 6, wherein an annular hollow seat (3) is further arranged below the hollow rocker arm (1), a pin shaft rod (2) fixedly connected with the hollow rocker arm (1) penetrates through the annular hollow seat (3), and the pin shaft rod (2) is movably connected with the annular hollow seat (3).
  8. 8. The precise pressure regulating mechanism for the plate spring cradle of the spinning machine of claim 7, wherein the end part of the hollow rocker arm (1) is provided with a T-shaped clamping groove (6), the upper part of the hollow rocker arm (1) is provided with a swinging rocker arm (5), one end of the swinging rocker arm (5) penetrates through the T-shaped clamping groove (6) to extend to the inner side of the hollow rocker arm (1), and the swinging rocker arm (5) is movably connected with the hollow rocker arm (1) through the T-shaped clamping groove (6).

Description

Accurate adjustment mechanism of spinning machine leaf spring cradle pressure Technical Field The utility model particularly relates to the technical field of spinning machine parts, in particular to a precision pressure adjusting mechanism for a plate spring cradle of a spinning machine. Background The plate spring cradle of the spinning machine is a special core piece of the ring spinning machine and is mainly used for pressurizing and controlling a roller system in the spinning process so as to realize accurate adjustment of yarn drafting, and the plate spring cradle applies stable pressure to the roller of the spinning machine through the structure of the plate spring cradle and the elasticity of the plate spring. The rollers are important components for drawing and transporting the fibers in the spinning machine, and the pressure applied by the cradle ensures that the fibers can be uniformly and tightly held between the rollers, thereby realizing effective drawing of the fibers. However, in practice, it has been noted that, currently, most leaf springs are provided with a push rod or a screw rod for adjusting the pressure above, and then the magnitude of the spring pressure is adjusted by adjusting the compression ratio of the spring, and since the adjusting bolt is installed between the leaf spring and the connection seat, the leaf spring needs to be removed and then adjusted when the leaf spring pressure is adjusted, resulting in a long adjustment time. Disclosure of utility model The utility model aims to provide a precision pressure regulating mechanism for a plate spring cradle of a spinning machine, wherein screw columns are arranged above each plate spring, the positions of the screw columns on the inner sides of connecting seats are regulated through screw fit between the screw columns and the connecting seats, so that the bending degree of the end parts of the plate springs is regulated, the pressure of the plate springs is regulated accurately, the end parts of the screw columns extend to the upper part of the cradle, and the pressure regulating mechanism can regulate the end parts of the plate springs under the condition of not disassembling the cradle. To solve the technical problems set forth in the background art. In order to achieve the above purpose, the present utility model provides the following technical solutions: The pressure precision regulating mechanism for the plate spring cradle of the spinning machine comprises a hollow rocker arm, wherein an adjustable plate spring frame is arranged at the end part of the hollow rocker arm in a rectangular array, and limit sliding grooves corresponding to the adjustable plate spring frame are formed in the upper part and the two sides of the hollow rocker arm; the adjustable plate spring frame is provided with a hollow fixing seat which is arranged on the inner side of the hollow rocker arm, the hollow fixing seat comprises a U-shaped connecting frame, and an elastic plate spring is arranged at the end part of the U-shaped connecting frame; threaded holes are symmetrically formed in the upper portion of the U-shaped connecting frame, threaded adjusting columns are connected in the threaded holes close to one end of the elastic plate spring in a threaded mode, and the threaded adjusting columns are located above the elastic plate spring. As a further technical scheme of the utility model, one end of the elastic plate spring, which is positioned at the inner side of the U-shaped connecting frame, is arranged in a U shape, and the bottom of the threaded adjusting column is contacted with the elastic plate spring, which is positioned above one end of the U-shaped connecting frame, through the adjusting pressing plate. As a further technical scheme of the utility model, the bottom of the U-shaped connecting frame is fixedly connected with a limiting stop rod, one end of the U-shaped connecting frame, which is far away from the elastic plate spring, is symmetrically provided with a positioning clamping groove, the elastic plate spring is positioned above the limiting stop rod, and two sides of the elastic plate spring are uniformly provided with positioning protrusions corresponding to the positioning clamping grooves. As a further technical scheme of the utility model, one end of the elastic plate spring far away from the U-shaped connecting frame is fixedly connected with an end pressure head, the inner side of the U-shaped connecting frame is fixedly connected with a metal elastic sheet, and the bottom of the U-shaped connecting frame is provided with an inverted U-shaped groove. As a further technical scheme of the utility model, the lengths of the limiting sliding grooves are sequentially increased from front to back, a positioning pressing plate is arranged above each limiting sliding groove, and one end of the threaded adjusting column, which is far away from the U-shaped connecting frame, penetrates through the positioning pressing plate