Cam of twill circular weaving machine and twill circular weaving machine

Abstract

The utility model relates to a twill circular weaving machine cam and a twill circular weaving machine, the twill circular weaving machine cam comprises a main body, the main body is provided with a fluctuating convex rib along the circumferential direction, the convex rib is provided with at least two low-position sections and at least two high-position sections, a transition section is connected between the low-position sections and the high-position sections, a fluctuating section is connected between the high-position sections, and the fluctuating section is connected between the high-position sections. The fluctuating section is lowered and then raised in the circumferential direction, the height change of the fluctuating section is slower than that of the transition section, and the fluctuating section is designed between the high-position sections, so that warps are in a semi-open intersection state when the shuttle pushing wheel passes through, the shuttle pushing wheel is prevented from rolling the warps, and yarn breakage is prevented.

Description

Technical Field

[0001] This utility model relates to a cam for a twill circular loom and a twill circular loom. Background Technology

[0002] Chinese utility patent CN220746203U discloses a cam structure for a twill circular loom. The cam disc is equipped with a curved rib to drive the swing arm to swing, which in turn drives the opening and closing mechanism to rise and fall to achieve warp yarn opening and closing. For a three-shuttle twill circular loom, the curved rib is set with a high point position and a low point position, and a transition section is connected between the high point position and the low point position. The warp yarns open and close at the low point position and the high point position for the shuttle to pass through, and half open and close at the transition section for the pusher wheel to pass through. However, the warp yarns are in an open state between the high point position and the high section. When the pusher wheel passes through, it will crush the warp yarns, which poses a risk of yarn breakage. Utility Model Content

[0003] In view of the technical problems existing in the background art, the present invention aims to provide a cam for a twill circular loom and a twill circular loom.

[0004] The loom is designed with undulating sections between the high sections, so that the warp threads are in a semi-open state when the shuttle pusher passes through.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: the cam of the twill circular loom includes a main body, wherein the main body is provided with undulating ribs along the circumference, the ribs are provided with a low section and a high section, the high section has at least two sections, the low section and the high section are connected by a transition section, the high section is connected by an undulating section, the undulating section first decreases and then increases along the circumference, and the height change of the undulating section is slower than the height change of the transition section.

[0006] In this scheme, the meridians in the low and high sections are in an open state for the shuttle to pass through, while the meridians in the transition and undulating sections are in a semi-open state for the pusher wheel to pass through.

[0007] Preferably, the main body has a mounting hole in the middle for the main shaft to pass through.

[0008] In this design, the cam is mounted on the spindle through a mounting hole.

[0009] Preferably, the lower segment is wound upward in the radial direction, and the higher segment is wound downward in the radial direction.

[0010] In this design, the winding mechanism is adapted to a larger swing angle.

[0011] This type of twill circular loom includes a main shaft, a weaving assembly, and a weaving / cutting assembly. The weaving assembly includes shuttles and pusher wheels, with at least three shuttles. Each pusher wheel corresponds to a shuttle and is driven by the main shaft. The weaving assembly and the weaving / cutting assembly cooperate. The main shaft is rotatably mounted, and the weaving / cutting assembly is circumferentially mounted along the main shaft. The weaving / cutting assembly includes a weaving element and a rocker arm. The weaving element is driven by the rocker arm, and the rocker arm has an upper roller and a lower roller at its end. The loom also includes a twill circular loom cam. The main shaft is driven by the main body, and the upper roller and lower roller cooperate to clamp the raised ribs.

[0012] In this scheme, the main shaft drives the swing arm to swing through the cam to achieve the opening and closing of the warp threads, and the pusher wheel pushes the shuttle to thread the weft threads.

[0013] The beneficial effect of this utility model is that by designing undulating sections between the high-level sections, the warp threads are in a semi-open state when the shuttle wheel passes through, preventing the shuttle wheel from crushing the warp threads and thus preventing thread breakage. Therefore, this utility model has substantial features and progress compared with the prior art. Attached Figure Description

[0014] The following description, in conjunction with the accompanying drawings, details the embodiments and working principles of this utility model.

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is a top view of the present invention.

[0017] Figure 3 This is a schematic diagram of the structure of the low-level segment of this utility model.

[0018] Figure 4 This is a schematic diagram of the undulating segment in this utility model.

[0019] Figure 5 This is a schematic diagram of the twill circular loom of this utility model.

[0020] In the diagram: 1. Main body; 3. Rib; 4. Low section; 5. High section; 6. Transition section; 7. Rippling section; 8. Mounting hole; 9. Main shaft; 10. Opening part; 11. Swing rod; 12. Upper roller; 13. Lower roller. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the implementation of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0022] In the description of this application, it should be understood that the terms "high" and "low" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0023] In the description of this application, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated.

[0024] See appendix Figure 1-4 In this embodiment, a cam for a twill circular loom includes a main body 1. The main body 1 has a mounting hole 8 in the middle for a main shaft 9 to pass through. The main body 1 has undulating ribs 3 along the circumference. The ribs 3 have a low section 4 and a high section 5. The high section 5 has at least two segments. A transition section 6 connects the low section 4 and the high section 5. An undulating section 7 connects the high section 5. The undulating section 7 first decreases and then increases along the circumference. The height change of the undulating section 7 is slower than the height change of the transition section 6. The low section 4 winds upward in the radial direction, and the high section 5 winds downward in the radial direction.

[0025] In this embodiment, the warp threads are in an open-ended state in the high section 5 and the low section 4 for the shuttle to pass through, and in a semi-open-ended state in the transition section 6 and the undulating section 7 for the pusher wheel to pass through. The height change of the undulating section 7 is slower than that of the transition section 6. The height difference between the low section 4 and the high section 5 is defined as 1, so the height difference of the undulating section 7 does not exceed 0.5. Relative to the baseline in the middle, the height of the undulating section 7 is always high, both because the movement required to avoid the pusher wheel is small and because the small movement will not cause the warp threads to break.

[0026] See appendix Figure 5This type of twill circular loom includes a main shaft 9, a weaving assembly, and a weaving / closing assembly. The weaving assembly includes shuttles and pusher wheels. The number of shuttles is at least three, and each pusher wheel corresponds to one shuttle. The pusher wheel is driven by the main shaft 9. The weaving assembly cooperates with the weaving / closing assembly. The main shaft 9 is rotatably mounted, and the weaving / closing assembly is arranged circumferentially along the main shaft 9. The weaving / closing assembly includes a weaving element 10 and a swing arm 11. The weaving element 10 is driven by the swing arm 11. The swing arm 11 has an upper roller 12 and a lower roller 13 at its end. The loom also includes a twill circular loom cam. The main shaft 9 is driven by the main body 1. The upper roller 12 and the lower roller 13 cooperate to clamp the raised rib 3.

[0027] In this embodiment, the opening and closing component 10 can be composed of heald belts and heald yarns, or it can be composed of a heald bar, which is a mature technology. The swing rod 11 holds the rib 3 through the upper roller 12 and the lower roller 13, and swings with the rise and fall of the rib 3, driving the opening and closing component 10 to rise and fall to realize the warp opening and closing. The current number of shuttles on the twill circular loom is a multiple of three or four, and the pusher wheel corresponds one-to-one with the shuttle, which is a mature technology. The number of cams is three or four, corresponding to the number of opening and closing components 10. For three cams, two warp yarns are on top and one warp yarn is on the bottom, or two warp yarns are on the bottom and one warp yarn is on top, forming a twill pattern.

[0028] The above description represents the preferred embodiment of this utility model. It should be noted that the protection scope of this utility model is not limited thereto. For those skilled in the art, various improvements, modifications, or equivalent substitutions can be made without departing from the equivalent inventive concept disclosed in this utility model, and these modifications and substitutions are also considered to be within the protection scope of this utility model.

Claims

1. A cam for a twill circular weaving machine comprising a body (1), characterized in that: The main body (1) is provided with undulating ribs (3) in the circumferential direction, the ribs (3) are provided with low sections (4) and high sections (5), the high sections (5) are at least two sections, the low sections (4) and the high sections (5) are connected with transition sections (6), the high sections (5) are connected with undulating sections (7), the undulating sections (7) are lowered first and then raised in the circumferential direction, and the height change of the undulating sections (7) is slower than that of the transition sections (6).

2. A cam for a twill circular weaving machine as claimed in claim 1, characterized in that: The main body (1) is provided with an installation hole (8) in the middle for the main shaft (9) to pass through.

3. A twill circular knitting machine cam as claimed in claim 1, characterized in that: The low sections (4) are rolled upward in the radial direction, and the high sections (5) are rolled downward in the radial direction.

4. A twill circular weaving machine, comprising a main shaft (9), a weaving assembly and an opening assembly, the weaving assembly comprising a plurality of at least three shuttles and a plurality of shuttle wheels corresponding to the shuttles, the shuttle wheels being in driving connection with the main shaft (9), the weaving assembly cooperating with the opening assembly, the main shaft (9) being rotatably arranged, the opening assembly being arranged circumferentially along the main shaft (9), the opening assembly comprising an opening member (10) and a swing lever (11), the opening member (10) being in driving connection with the swing lever (11), the swing lever (11) having an upper roller (12) and a lower roller (13) arranged at the end thereof, characterized in that: The main shaft (9) is in driving connection with the main body (1), and the upper roller (12) and the lower roller (13) are matched to clamp the ribs (3).

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