A saddle

Abstract

This utility model relates to the field of knitting equipment technology, and in particular to a saddle. Its adjusting shaft has a spiral groove, and a positioning pin extends into the spiral groove. The core trajectory line of the spiral groove is an Archimedean spiral. The vertical plane corresponding to the central polar axis of the core trajectory line is defined as the first vertical plane, and the vertical plane corresponding to the axis of the positioning pin is defined as the second vertical plane. The first and second vertical planes are spaced apart, and the pressure direction between the positioning pin and the spiral groove is approximately on the second vertical plane. This design ensures that the pressure direction between the positioning pin and the spiral groove is approximately vertically upward, preventing the pressure from generating rotational torque on the adjusting shaft, thus preventing the adjusting shaft from rotating and ensuring that the slider does not shift in the vertical direction, achieving precise adjustment and positioning.

Description

Technical Field

[0001] This utility model relates to the field of knitting equipment technology, and in particular to a saddle. Background Technology

[0002] The saddle is one of the core components of a circular knitting machine, used for mounting and adjusting the camshaft. Existing saddle adjustment mechanisms typically employ a rotating shaft with an engraved helical groove, which engages with a locating pin on the slider. The rotation of the helical groove moves the slider up and down, thus adjusting the camshaft height. In existing designs, the central polar axis of the helical groove and the axis of the locating pin are on the same vertical plane. Due to the structural characteristics of the helical groove, when the slider is under force, the pressure between the locating pin and the helical groove is tilted to one side. This tilted pressure exerts a rotational torque on the adjusting shaft, causing it to rotate and ultimately resulting in displacement and misalignment of the slider in the vertical direction. Therefore, this paper proposes a new saddle design to solve the above problems. Utility Model Content

[0003] To overcome the shortcomings of the existing technology, this utility model provides a saddle that prevents displacement and deviation and provides precise adjustment and positioning.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a saddle, including a seat body, a slider, and an adjustment mechanism. The slider is vertically movable and installed on one side of the seat body. The adjustment mechanism is used to adjust the height position of the slider on the seat body. The adjustment mechanism includes an adjustment shaft and a positioning pin. The adjustment shaft is installed in the seat body. A spiral groove is opened on the end face of the adjustment shaft facing the slider. One end of the positioning pin is connected to the slider, and the other end extends into the spiral groove.

[0005] The core trajectory line of the spiral groove is an Archimedean spiral. The vertical plane corresponding to the central polar axis of the core trajectory line is defined as the first vertical plane, and the vertical plane corresponding to the axis of the positioning pin is defined as the second vertical plane. The first vertical plane and the second vertical plane are spaced apart, and the pressure direction between the positioning pin and the spiral groove is approximately on the second vertical plane.

[0006] Furthermore, the intersection of the first vertical plane and the outer wall of the spiral groove located on the upper side of the central polar axis is defined as the first intersection line, the intersection of the horizontal plane where the first intersection line is located and the other intersection of the outer wall of the spiral groove is defined as the second intersection line, and the central parallel line between the first intersection line and the second intersection line is located within the second vertical plane.

[0007] Furthermore, the adjustment mechanism also includes a lifting spring, which acts between the seat and the slider and applies an upward elastic force to the slider.

[0008] Furthermore, the base has an installation groove on one end face facing the slider, the lifting spring is located in the installation groove, and the adjustment mechanism also includes a stop post. One end of the stop post is connected to the slider, and the other end extends into the installation groove. The lower end of the lifting spring abuts against the bottom of the installation groove, and the upper end abuts against the stop post.

[0009] As can be seen from the above description of the present invention, compared with the prior art, the saddle provided by the present invention has the following advantages: by adopting the misaligned design of the adjusting shaft and the positioning pin of the present application, when the positioning pin is pushed upward by force, the pressure direction between the positioning pin and the spiral groove is approximately vertically upward. This pressure has almost no lateral component force on the adjusting shaft, so the pressure will not generate a rotational torque on the adjusting shaft, that is, it will not cause the adjusting shaft to rotate, ensuring that the slider will not be displaced in the vertical direction, and achieving accurate adjustment and positioning. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the main structure of a saddle according to the present invention.

[0011] Figure 2 This is a side view schematic diagram of a saddle structure according to the present invention.

[0012] Figure 3 This is a schematic diagram showing the force distribution between the spiral groove and the locating pin of this utility model.

[0013] Figure 4 This is a schematic diagram of the spiral groove structure of this utility model.

[0014] Figure 5 This utility model Figure 4 Enlarged view of point A in the middle.

[0015] The markings in the diagram correspond to the following: 1. Base; 2. Slider; 21. Mounting slot; 31. Adjusting shaft; 311. Spiral groove; 32. Positioning pin; 33. Lifting spring; 34. Stop post; 4. First vertical surface; 5. Second vertical surface; 6. First intersection line; 7. Second intersection line. Detailed Implementation

[0016] The present invention will be further described below through specific embodiments.

[0017] Reference Figures 1 to 2 As shown, a saddle includes a seat body 1, a slider 2, and an adjustment mechanism. The slider 2 is vertically movable and mounted on one side of the seat body 1. The adjustment mechanism is used to adjust the height position of the slider 2 on the seat body 1. The adjustment mechanism includes an adjusting shaft 31 and a positioning pin 32. The adjusting shaft 31 is installed inside the seat body 1. A spiral groove 311 is opened on the end face of the adjusting shaft 31 facing the slider 2. One end of the positioning pin 32 is connected to the slider 2, and the other end extends into the spiral groove 311. The pin shaft of the positioning pin 32 is parallel to the central polar axis of the spiral groove 311.

[0018] refer to Figures 3 to 4 As shown, the core trajectory line of the spiral groove 311 is an Archimedean spiral. The vertical plane corresponding to the central polar axis of the core trajectory line is defined as the first vertical plane 4, and the vertical plane corresponding to the axis of the positioning pin 32 is defined as the second vertical plane 5. The first vertical plane 4 and the second vertical plane 5 are spaced apart, and the pressure direction between the positioning pin 32 and the spiral groove 311 is approximately on the second vertical plane 5.

[0019] refer to Figure 5 As shown, the distance between the first vertical surface 4 and the second vertical surface 5 is determined as follows: the intersection of the first vertical surface 4 and the outer wall of the spiral groove 311 located on the upper side of the central polar axis is defined as the first intersection line 6, the intersection of the horizontal plane where the first intersection line 6 is located and the other intersection of the outer wall of the spiral groove 311 is defined as the second intersection line 7, and the central parallel line between the first intersection line 6 and the second intersection line 7 is located within the second vertical surface 5, thus determining the distance between the first vertical surface 4 and the second vertical surface 5.

[0020] The adjustment mechanism also includes a lifting spring 33, which acts between the base 1 and the slider 2 and applies an upward elastic force to the slider 2. Specifically, the base 1 has a mounting groove 21 on one end face facing the slider 2, and the lifting spring 33 is located in the mounting groove 21. The adjustment mechanism also includes a stop post 34, one end of which is connected to the slider 2, and the other end extends into the mounting groove 21. The lower end of the lifting spring 33 abuts against the bottom of the mounting groove 21, and the upper end abuts against the stop post 34.

[0021] By adopting the misaligned design of adjusting shaft 31 and positioning pin 32 in this application, in this embodiment, lifting spring 33 applies an upward elastic force to slider 2. Therefore, positioning pin 32 has a direction, and the pressure direction between positioning pin 32 and spiral groove 311 is approximately on the second vertical surface 5, that is, the pressure direction is vertically upward. This pressure has almost no lateral component force, so this pressure will not generate a rotational torque on adjusting shaft 31, that is, it will not cause adjusting shaft 31 to rotate, ensuring that slider 2 will not be displaced in the vertical direction, and achieving accurate adjustment and positioning.

[0022] The above is only one specific embodiment of the present utility model, but the design concept of the present utility model is not limited thereto. Any non-substantial modifications made to the present utility model using this concept shall be considered as an infringement of the protection scope of the present utility model.

Claims

1. A saddle, comprising a seat body, a slider, and an adjustment mechanism, wherein the slider is vertically movable and mounted on one side of the seat body, and the adjustment mechanism is used to adjust the height position of the slider on the seat body. The adjustment mechanism includes an adjustment shaft and a positioning pin. The adjustment shaft is mounted in the seat body, and a spiral groove is formed on one end face of the adjustment shaft facing the slider. One end of the positioning pin is connected to the slider, and the other end extends into the spiral groove. Its features are: The core trajectory line of the spiral groove is an Archimedean spiral. The vertical plane corresponding to the central polar axis of the core trajectory line is defined as the first vertical plane, and the vertical plane corresponding to the axis of the positioning pin is defined as the second vertical plane. The first vertical plane and the second vertical plane are spaced apart, and the pressure direction between the positioning pin and the spiral groove is approximately on the second vertical plane.

2. A saddle as claimed in claim 1, characterized in that: The intersection of the first vertical plane and the outer wall of the spiral groove located on the upper side of the central polar axis is defined as the first intersection line. The intersection of the horizontal plane where the first intersection line is located and the other intersection of the outer wall of the spiral groove is defined as the second intersection line. The central parallel line between the first intersection line and the second intersection line is located within the second vertical plane.

3. The saddle of claim 1, wherein: The adjustment mechanism also includes a lifting spring, which acts between the seat and the slider and applies an upward elastic force to the slider.

4. A saddle as claimed in claim 3, characterized in that: The base has an installation groove on one end face facing the slider. The lifting spring is located in the installation groove. The adjustment mechanism also includes a stop post. One end of the stop post is connected to the slider, and the other end extends into the installation groove. The lower end of the lifting spring abuts against the bottom of the installation groove, and the upper end abuts against the stop post.

Images