Groove needle main arm of warp knitting machine

Abstract

The utility model provides a groove needle main arm of a warp knitting machine. The groove needle main arm comprises a main body, the main body comprises a first panel and a second panel perpendicular to the side end of the first panel; the main body further comprises a plurality of first holes, the first holes are formed in a first panel of the main body, and the first panel is vertically through by the first holes; due to the fact that the first holes are formed in the first panel of the main body, in the swinging process, when airflow flows through the surface of an object, original laminar flow can be separated from the surface at the head end of the first panel to form a turbulent flow area along the steep curved surface of the first panel, the airflow is induced under the intervention of the first holes, and therefore the airflow can be prevented from falling off. Laminar flow is converted into turbulent flow in advance, a separation point moves backwards, a flow field at the head end of the first panel is optimized, differential pressure resistance is reduced by 50%, friction heat generated by air resistance is reduced, equipment vibration is reduced, and therefore the control precision of the device is improved, and the weaving quality and the production efficiency are further improved.

Description

Technical Field

[0001] This utility model relates to a grooved needle main arm for a warp knitting machine, belonging to the field of grooved needle structure for warp knitting machines. Background Technology

[0002] The loop-forming motion of a warp knitting machine generally includes the movement of the groove needles, the movement of the needle core, the movement of the loop release needles, and the movement of the sinker. The groove needle movement and the needle core movement are composed of the up-and-down movement and oscillation of the groove needle core. In a warp knitting machine, the up-and-down movement and oscillation of the groove needle core are respectively accomplished by the corresponding groove needle core up-and-down movement mechanism and oscillation mechanism. Among the loop-forming motion mechanisms, the oscillation mechanism of the groove needle core is particularly important.

[0003] The warp threads are threaded onto the core of the grooved needle and driven by the main arm of the swing mechanism. The inclined and asymmetrical structural design of the traditional main arm will generate asymmetrical airflow or random turbulence when the warp threads pass through, which will increase the resistance when the swing arm moves, thereby limiting the maximum speed or acceleration of the swing mechanism. It is also prone to vibration, causing wear and thermal deformation of the swing arm, which will affect the control accuracy of the swing arm and result in low weaving quality and low production efficiency.

[0004] In response, this utility model provides a warp knitting machine groove needle main arm that can reduce air resistance. Utility Model Content

[0005] In view of this, the purpose of this utility model is to provide a warp knitting machine groove needle main arm that can reduce air resistance.

[0006] This utility model is implemented as follows:

[0007] A main arm for a warp knitting machine grooved needle includes a main body; the main body includes a first panel and a second panel perpendicular to the side end of the first panel.

[0008] The main body also includes a plurality of first holes, the first holes being opened on the first panel of the main body, the first panel being penetrated vertically by the first holes.

[0009] As a further improvement, the number of the first holes is three, which are evenly distributed on the first panel.

[0010] As a further improvement, it also includes a swing base and a swing shaft. There are two swing shafts, which are symmetrically arranged at the head end of the swing base. The swing shafts are installed on two second panels at the head end of the main body so that the swing base drives the main body to swing.

[0011] As a further improvement, both the first panel and the second panel are curved surfaces.

[0012] As a further improvement, a second hole is provided on the tail end face of the main body.

[0013] As a further improvement, a cover plate is also included, which is detachably fixed to the end face of the tail end of the main body and forms a complete circle with the second hole, so that the second hole engages with the shaft on the warp knitting machine.

[0014] As a further improvement, the main body also includes a reinforcing rib located between the two second panels, and the two ends of the reinforcing rib are fixed to the inner wall of the second panel.

[0015] As a further improvement, the diameter of the first hole is smaller than the width L of the first panel.

[0016] As a further improvement, the diameter of the first hole near the head end of the main body is larger than the diameters of the other two first holes.

[0017] The beneficial effects of this utility model are as follows: By opening several first holes on the first panel of the main body, during the swinging process of this utility model, when the airflow flows over the surface of the object, along the steep curved surface of the first panel, the original laminar flow will separate from the surface at the beginning of the first panel to form a turbulent zone. Under the intervention of the first holes, the airflow is induced to change from laminar flow to turbulent flow in advance, causing the separation point to move backward, optimizing the flow field at the beginning of the first panel, reducing pressure resistance by 50%, reducing the frictional heat generated by air resistance, reducing equipment vibration, thereby improving the control accuracy of this utility model, and further improving the weaving quality and production efficiency. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This utility model provides a schematic diagram of the mounting structure for the main arm of the grooved needle on a warp knitting machine. Figure 1 .

[0020] Figure 2 This utility model provides a schematic diagram of the mounting structure for the main arm of the grooved needle on a warp knitting machine. Figure 2 .

[0021] Figure 3 This utility model provides a schematic diagram of the structure of the main arm of the grooved needle of a warp knitting machine. Figure 1 .

[0022] Figure 4 This utility model provides a schematic diagram of the structure of the main arm of the grooved needle of a warp knitting machine. Figure 2 .

[0023] Figure 5 This is a top view of the main arm of the grooved needle of a warp knitting machine provided in an embodiment of the present invention.

[0024] Figure 6 This utility model provides a schematic diagram of the structure of the main arm of the grooved needle of a warp knitting machine. Figure 3 . Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0026] In the description of this utility model, the terms "first" and "second" 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, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0027] Reference Figures 1-6 As shown, this embodiment provides a specific implementation of a warp knitting machine grooved needle main arm, including a main body 10; the main body 10 includes a first panel 101 and a second panel 102 perpendicular to the side end of the first panel 101;

[0028] The main body 10 also includes a plurality of first holes 103, the first holes 103 being opened on the first panel 101 of the main body 10, and the first panel 101 being penetrated vertically by the first holes 103.

[0029] In this embodiment, both the first panel 101 and the second panel 102 are curved surfaces;

[0030] In the above technical solution, the present invention has a plurality of first holes 103 on the first panel 101 of the main body 10. During the swinging process of the present invention, when the airflow flows over the surface of the object, along the steep curved surface of the first panel 101, the original laminar flow will separate from the surface at the head end of the first panel 101 to form a turbulent zone. Under the intervention of the first holes 103, the airflow is induced to change from laminar flow to turbulent flow in advance, so that the separation point is moved backward, the flow field at the head end of the first panel 101 is optimized, the pressure difference resistance is reduced by 50%, the frictional heat generated by air resistance is reduced, and the equipment vibration is reduced, thereby improving the control accuracy of the present invention and further improving the weaving quality and production efficiency.

[0031] In this embodiment, there are three first holes 103, which are distributed at equal intervals on the first panel 101.

[0032] Furthermore, the diameter of the first hole 103 is smaller than the width L of the first panel 101;

[0033] Furthermore, the diameter of the first hole 103 near the head end of the main body 10 is larger than the diameters of the other two first holes 103;

[0034] In the above technical solution, by using three first holes 103 with different apertures, after being disturbed by two first holes 103 with smaller apertures along the first panel 101, it is further disturbed by the first hole 103 with larger aperture, thereby disrupting the large-scale separation vortex structure, reducing the wake region, and reducing energy loss.

[0035] This utility model also includes a swing seat 20 and a swing shaft 30. There are two swing shafts 30, which are symmetrically arranged at the head end of the swing seat 20. The swing shafts 30 are installed on two second panels 102 at the head end of the main body 10 so that the swing seat 20 drives the main body 10 to swing.

[0036] Furthermore, the swing seat 20 is provided with an oil injection nozzle 201 for injecting lubricating oil to lubricate the swing seat 20 and improve the lubrication of the swing seat 20.

[0037] In this embodiment, a second hole 104 is formed on the tail end face of the main body 10.

[0038] The present invention also includes a cover plate 40, which is detachably fixed to the end face of the tail end of the main body 10 and forms a complete circle with the second hole 104, so that the second hole 104 cooperates with the rotating shaft on the warp knitting machine, thereby realizing the combination of the present invention with other structures on the warp knitting machine.

[0039] In this embodiment, the main body 10 further includes a reinforcing rib 105, which is located between the two second panels 102, and the two ends of the reinforcing rib 105 are fixed to the inner wall of the second panel 102.

[0040] Strengthen the stability between the second panels 102 in the main body 10 to improve the stability of equipment operation.

[0041] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A main arm for grooved needles on a warp knitting machine, characterized in that, It includes a main body (10); the main body (10) includes a first panel (101) and a second panel (102) perpendicular to the side end of the first panel (101); The main body (10) also includes a plurality of first holes (103), the first holes (103) being opened on the first panel (101) of the main body (10), and the first panel (101) being penetrated vertically by the first holes (103).

2. The main arm of the warp knitting machine grooved needle according to claim 1, characterized in that, There are three first holes (103), which are evenly distributed on the first panel (101).

3. The main arm of the warp knitting machine grooved needle according to claim 2, characterized in that, It also includes a swing seat (20) and a swing shaft (30). There are two swing shafts (30), which are symmetrically arranged at the head end of the swing seat (20). The swing shafts (30) are installed on two second panels (102) at the head end of the main body (10) so that the swing seat (20) drives the main body (10) to swing.

4. The main arm of the warp knitting machine grooved needle according to claim 1, characterized in that, Both the first panel (101) and the second panel (102) are curved surfaces.

5. The main arm of the warp knitting machine grooved needle according to claim 1, characterized in that, A second hole (104) is opened on the tail end face of the main body (10).

6. The main arm of the warp knitting machine grooved needle according to claim 5, characterized in that, It also includes a cover plate (40), which is detachably fixed to the end face of the tail end of the main body (10) and forms a complete circle with the second hole (104), so that the second hole (104) cooperates with the shaft on the warp knitting machine.

7. The main arm of the warp knitting machine grooved needle according to claim 1, characterized in that, The main body (10) also includes a reinforcing rib (105) located between two second panels (102), and the two ends of the reinforcing rib (105) are fixed to the inner wall of the second panel (102).

8. The main arm of the warp knitting machine grooved needle according to claim 1, characterized in that, The diameter of the first hole (103) is smaller than the width L of the first panel (101).

9. The main arm of the warp knitting machine grooved needle according to claim 2, characterized in that, The diameter of the first hole (103) near the head end of the main body (10) is larger than the diameter of the other two first holes (103).

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