Automatic tension adjusting device of cotton yarn roving frame

Abstract

The utility model discloses an automatic tension adjusting device for a cotton yarn roving frame, which comprises a frame, a yarn inlet roller and a yarn outlet roller are rotatably connected onto the frame, a plurality of sliding frames are slidably connected onto the frame, a tension detecting mechanism is arranged on each sliding frame and comprises a detecting wheel, and a threaded rod is rotatably connected onto the frame. A second gear and threaded rods are arranged in a matched mode, the second gear is driven by a rotary driving device to rotate, different threaded rods are driven to rotate through transmission, a plurality of sliding frames can slide up and down on a rack, and therefore tension adjustment can be conducted on all cotton slivers on the roving frame through up-down movement of a detection wheel; the adjusting block slides in the adjusting groove in a reciprocating mode, so that the second gear can be meshed with the different first gears, different sliding frames are driven to move, the rotating driving device can drive all the sliding frames to conduct automatic tension adjustment, and the purpose of saving resources is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of automatic tension adjustment of roving frames, in particular to an automatic tension adjustment device for a cotton yarn roving frame. Background Art

[0002] Roving frames are spinning machines that turn fiber strips into roving. The main functions of roving frames are drafting and twisting, and winding the roving into a certain package to meet the requirements of spinning frame processing. Roving frames are divided into wing-spindle roving frames and twist-spindle roving frames according to the twisting mechanism. Wing-spindle roving frames continuously apply twist to the yarn strips by rotating the spindle wings to produce twisted roving. Twist-spindle roving frames clamp and twist the yarn strips with a pair of twisting leather plates, forming a false twist with alternating positive and negative twists on the yarn strips to produce non-twist roving. Wing-spindle roving frames and twist-spindle roving frames can be divided into first-pass, second-pass and single-pass roving frames. The feeding forms, roving packages and number of spindles of various roving frames are different, but the machine structure and function are roughly the same.

[0003] In the prior art, when roving machines are in use, multiple lines are mostly processed synchronously, so that the tension control mechanism is mostly controlled uniformly or separately by multiple sets of control mechanisms. Both methods are inconvenient. Therefore, it is necessary to design an automatic tension adjustment device for a cotton yarn roving machine. Utility Model Content

[0004] Based on this, it is necessary to provide a cotton yarn roving frame tension automatic adjustment device to address the above technical problems.

[0005] In order to achieve the above-mentioned purpose, the utility model provides an automatic tension adjustment device for a cotton yarn roving machine, comprising a frame, wherein the frame is rotatably connected to an inlet roller and an outlet roller, and the frame is slidably connected to a plurality of sliding frames, the sliding frame is provided with a tension detection mechanism, the tension detection mechanism comprises a detection wheel, a threaded rod is rotatably connected to the frame, the threaded rod corresponds to the sliding frame one to one, the threaded rod is threadedly connected to the sliding frame, a bevel gear 1 is installed on the threaded rod, a rotating shaft is rotatably connected to the frame, the rotating shaft corresponds to the threaded rod one to one, a bevel gear 2 is installed on the axial end of the rotating shaft close to the threaded rod, the bevel gear 1 is meshed with the bevel gear 2, a gear 1 is installed on the axial end of the rotating shaft away from the threaded rod, an adjusting groove is provided on the frame, an adjusting block is slidably connected in the adjusting groove, a rotation driving device 1 is installed on the adjusting block, a gear 2 is installed at the output end of the rotation driving device 1, and the gear 1 and the gear 2 are matched with each other.

[0006] Preferably, the tension detection mechanism also includes two slide grooves, which are arranged opposite to each other on the sliding frame, and a slider is slidably connected in the slide groove. The detection wheel is located between the two sliders and is rotatably connected to the two sliders. A force sensor is installed at the bottom of one of the slide grooves, and the slider is in contact with the force sensor.

[0007] Preferably, a spring is installed in the slide groove.

[0008] Preferably, a second threaded rod is rotatably connected to the frame, the second threaded rod is threadedly connected to the adjustment block, a second rotation drive device is installed on the frame, and the output end of the second rotation drive device is transmission-connected to the second threaded rod.

[0009] Preferably, the output end of the first rotary drive device is threadedly connected to the second gear via a first coupling.

[0010] Preferably, the output end of the second rotary drive device is transmission-connected to the second threaded rod via a second coupling.

[0011] Compared with the prior art, this technical solution has at least one of the following beneficial effects:

[0012] Through the matching arrangement of the gear 2 and the threaded rod, the rotary driving device drives the gear 2 to rotate, thereby driving different threaded rods to rotate through transmission, so that multiple sliding racks can slide up and down on the frame, so that the tension of all the slivers on the roving frame can be adjusted by the up and down movement of the detection wheel;

[0013] By sliding the adjusting block back and forth in the adjusting groove, gear 2 can mesh with different gears 1, thereby driving different sliding frames to move. Thus, all sliding frames can be driven by a rotary drive device to automatically adjust the tension, thereby achieving the purpose of saving resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A three-dimensional diagram of an embodiment of the utility model;

[0015] Figure 2 It is a front cross-sectional view of an embodiment of the utility model;

[0016] Figure 3 A side sectional view of an embodiment of the utility model;

[0017] Figure 4 For an embodiment of the utility model Figure 1 Enlarged view of point A in the middle;

[0018] In the figure, 1, frame; 2, inlet roller; 3, outlet roller; 4, sliding frame; 5, detection wheel; 6, threaded rod; 7, bevel gear one; 8, rotating shaft; 9, bevel gear two; 10, gear one; 11, adjustment slot; 12, adjustment block; 13, rotation drive device one; 14, gear two; 15, slide slot; 16, slider; 17, force sensor; 18, spring; 19, threaded rod two; 20, rotation drive device two; 21, coupling one; 22, coupling two. DETAILED DESCRIPTION

[0019] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0020] See also Figures 1 to 4 The embodiment of the present application provides an automatic tension adjustment device for a cotton yarn roving machine, including a frame 1, a wire feed roller 2 and a wire outlet roller 3 are rotatably connected to the frame 1, a plurality of sliding frames 4 are slidably connected to the frame 1, a tension detection mechanism is arranged on the sliding frame 4, and the tension detection mechanism includes a detection wheel 5, a threaded rod 6 is rotatably connected to the frame 1, the threaded rod 6 corresponds to the sliding frame 4 one by one, the threaded rod 6 is threadedly connected to the sliding frame 4, a bevel gear 7 is installed on the threaded rod 6, a rotating shaft 8 is rotatably connected to the frame 1, and the rotating shaft 8 is connected to the threaded rod 6 In one-to-one correspondence, a bevel gear 29 is installed on the axial end of the rotating shaft 8 close to the threaded rod 6, and a bevel gear 17 is meshed with the bevel gear 29. A gear 10 is installed on the axial end of the rotating shaft 8 away from the threaded rod 6. An adjusting groove 11 is provided on the frame 1, and an adjusting block 12 is slidably connected in the adjusting groove 11. A rotating drive device 13 is installed on the adjusting block 12. The rotating drive device 13 can be a servo motor. A gear 2 14 is installed on the output end of the rotating drive device 13. Gear 10 and gear 2 14 are arranged in coordination.

[0021] In this embodiment, the cotton strip passes through the bottom of the inlet roller 2, then passes through the top of the detection wheel 5, and is finally pulled away by the bottom of the outlet roller 3, so that the tension detection mechanism on the sliding frame 4 can detect the tension of the cotton strip passing through. By moving and adjusting the position of the adjustment block 12 in the adjustment slot 11 on the frame 1, the gear 2 14 installed at the output end of the rotating drive device 1 13 on it can move with the adjustment block 12, so that the gear 2 14 can mesh with different gears 10. After meshing, the rotating drive device 13 starts to work, so that the bevel gear 2 9 at the other end of the rotating shaft 8 is driven by the gear 10 to rotate, and finally the bevel gear 2 9 is meshed with the bevel gear 1 7, so that the threaded rod 6 can drive the sliding frame 4 threadedly connected thereto to slide on the frame 1, and the detection wheel 5 on the sliding frame 4 can adjust the tension of the cotton strip passing through by moving up and down; there is a certain distance between the top of the threaded rod 6 and the detection wheel 5, so that the two will not collide.

[0022] In some embodiments, in order to facilitate the tension detection of the cotton strip passing through the detection wheel 5, the tension detection mechanism is provided and further includes two slide grooves 15, the slide grooves 15 are arranged opposite to each other on the sliding frame 4, a slider 16 is slidably connected in the slide grooves 15, the detection wheel 5 is located between the two sliders 16 and is rotatably connected to the two sliders 16, a force sensor 17 is installed at the bottom of one of the slide grooves 15, the force sensor 17 can be a pressure sensor, and the slider 16 abuts against the force sensor 17. When the cotton strip passes through the detection wheel 5, it exerts pressure on the detection wheel 5, so that the slider 16 connected to the detection wheel 5 can move in the slide groove 15, but the bottom of the slider 16 abuts against the force sensor 17, and the downward sliding trend of the slider 16 can exert pressure on the force sensor 17, so that the tension to which the cotton strip is subjected when passing through the detection wheel 5 can be determined by the reading of the force sensor 17.

[0023] In some embodiments, in order to balance the slider 16 sliding in the slide slot 15 without the force sensor 17, a spring 18 is installed in the slide slot 15. The slide slots 15 on both sides of the slide frame 4 are both installed with springs 18, so that the two sliders 16 can be on the same horizontal line; the length of the spring 18 should be consistent with the height of the force sensor 17, so as to avoid affecting the operation of the force sensor 17.

[0024] In some embodiments, in order to facilitate the sliding of the adjustment block 12 in the adjustment slot 11, a threaded rod 2 19 is rotatably connected to the frame 1, the threaded rod 2 19 is threadedly connected to the adjustment block 12, a rotation drive device 20 is installed on the frame 1, and the output end of the rotation drive device 20 is transmission-connected to the threaded rod 2 19. The threaded rod 2 19 is driven to rotate by the rotation drive device 20, so that the adjustment block 12 adjusted with the threaded rod 2 19 can move.

[0025] In some embodiments, in order to facilitate the rotation driving device 13 to drive the gear 2 14 to rotate, the output end of the rotation driving device 13 is threadedly connected to the gear 2 14 through a coupling 1 21 .

[0026] In some embodiments, in order to facilitate the second rotary drive device 20 to drive the second threaded rod 19 to rotate, the output end of the second rotary drive device 20 is arranged to be transmission-connected with the second threaded rod 19 via a second coupling 22 .

[0027] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0028] The above embodiments only express several implementation methods of the utility model, and the descriptions are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

[0029] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0030] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0031] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. An automatic tension adjustment device for a cotton yarn roving frame, comprising a frame (1), to which an inlet roller (2) and an outlet roller (3) are rotatably connected, characterized in that: The frame (1) is slidably connected to a plurality of sliding frames (4), the sliding frames (4) are provided with tension detection mechanisms, the tension detection mechanisms comprising detection wheels (5), the frame (1) is rotatably connected to a threaded rod (6), the threaded rod (6) corresponds to the sliding frames (4) one by one, the threaded rod (6) is threadedly connected to the sliding frames (4), a bevel gear (7) is mounted on the threaded rod (6), the frame (1) is rotatably connected to a rotating shaft (8), the rotating shaft (8) corresponds to the threaded rod (6) one by one, and a rotating shaft (8) near the threaded rod ( A bevel gear 2 (9) is installed at one axial end of the threaded rod (6), and the bevel gear 1 (7) is meshedly connected with the bevel gear 2 (9). A gear 1 (10) is installed at one axial end of the rotating shaft (8) away from the threaded rod (6). An adjustment groove (11) is provided on the frame (1), and an adjustment block (12) is slidably connected in the adjustment groove (11). A rotation drive device 1 (13) is installed on the adjustment block (12). A gear 2 (14) is installed at the output end of the rotation drive device 1 (13). The gear 1 (10) and the gear 2 (14) are arranged in coordination.

2. The automatic tension adjustment device for cotton yarn roving frame according to claim 1 is characterized in that: The tension detection mechanism further comprises two slide grooves (15), the slide grooves (15) being arranged opposite to each other on the sliding frame (4), a slider (16) being slidably connected in the slide groove (15), the detection wheel (5) being located between the two sliders (16) and being rotatably connected to the two sliders (16), a force sensor (17) being installed at the bottom of one of the slide grooves (15), and the slider (16) being in contact with the force sensor (17).

3. The automatic tension adjustment device for cotton yarn roving frame according to claim 2, characterized in that: A spring (18) is installed in the slide groove (15).

4. The automatic tension adjustment device for cotton yarn roving frame according to claim 1, characterized in that: The frame (1) is rotatably connected to a second threaded rod (19), the second threaded rod (19) is threadedly connected to the adjustment block (12), and a second rotary drive device (20) is installed on the frame (1), the output end of the second rotary drive device (20) is drivingly connected to the second threaded rod (19).

5. The automatic tension adjustment device for cotton roving frame according to claim 1, characterized in that: The output end of the rotary drive device 1 (13) is threadedly connected to the gear 2 (14) via a coupling 1 (21).

6. The automatic tension adjustment device for a cotton roving frame according to claim 4, characterized in that: The output end of the second rotary drive device (20) is transmission-connected to the second threaded rod (19) via the second coupling (22).

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