Preliminary shaping device of roving frame

Abstract

The utility model discloses a preliminary sizing device of a roving frame, which comprises a rack, a traction shaft is rotatably connected onto the rack, and a plurality of clamping strips are arranged on the traction shaft. Through cooperative arrangement of the threaded rod and the cleaning shaft, while the threaded rod drives the traction sleeve to slide on the traction shaft, the cleaning shaft drives the scraping plate on the traction sleeve to rotate to clean the surface of the traction sleeve, and only after the part, making contact with roving strips, of the traction sleeve is moved out, the surface of the traction sleeve is cleaned; serious abrasion caused by continuous contact between the scraper and the traction sleeve is avoided; through cooperative arrangement of a fixing ring and a mounting plate, when cleaning is not carried out, a lifting shaft or a pressing shaft always extrudes a roving strip to enable the roving strip to be in a tightened state under proper tension, when a traction sleeve slides, friction between the traction sleeve and the roving strip enables the tension of the roving strip to be increased, and at the moment, by adjusting the position of the mounting plate, the roving strip can be cleaned. And the lifting shaft or the lowering shaft does not extrude the roving strips, so that the roving strips are not easy to break.

Description

Technical Field

[0001] The utility model relates to the technical field of preliminary shaping of roving frames, in particular to a preliminary shaping device for roving frames. Background Art

[0002] Roving machine is a spinning machine that turns fiber strips into roving strips. The main function of roving machine is to draft and twist, and wind the roving into a certain package to meet the requirements of spinning machine processing. At present, there are still various problems with the roving machines on the market, which are difficult to meet the needs of actual production.

[0003] In the prior art, the fibers on the roving are very easy to adhere to the surface of the traction shaft. When the amount of adhesion is large, it will affect the tension when the roving is pulled, resulting in a decrease in the quality of the roving. Therefore, it is often necessary to clean the surface of the traction roller. However, due to the characteristic of the existing cleaning structure that the roving can only be transported after being wrapped around it once when the traction roller is pulling, the cleaning structure can only be cleaned when the roving machine is shut down. Therefore, it needs to be improved. Utility Model Content

[0004] Based on this, it is necessary to provide a preliminary shaping device for a roving frame to address the above technical issues.

[0005] The traction shaft is rotatably connected to the frame, and a plurality of clips are arranged on the traction shaft, and the traction sleeve is also included, and a plurality of clip grooves are arranged on the traction sleeve, and the clips are clamped with the clip grooves. A threaded rod is rotatably connected to the frame, and a movable frame is slidably connected to the frame, and the threaded rod is threadedly connected to the movable frame, and both ends of the movable frame abut against the traction sleeve. A cleaning shaft is rotatably connected to the frame, and the cleaning shaft is located on one side of the inlet end of the traction sleeve. A fixing ring is installed on the frame, and the cleaning shaft is coaxially arranged with the fixing ring, and an annular groove is provided on the fixing ring. A sliding block is installed on the cleaning shaft, and the sliding block slides in the annular groove. A mounting plate is rotatably connected to the sliding block, and a lifting shaft and a pressing shaft are rotatably connected to the mounting plate. Scrapers are provided at the upper and lower ends of the cleaning shaft, and a dust suction port is installed on the frame.

[0006] Preferably, the frame is provided with a limit groove, a limit block is slidably connected in the limit groove, a telescopic rod is installed on the limit block, and the output end of the telescopic rod is connected to the top of the mounting plate.

[0007] Preferably, gear one is installed on the threaded rod, gear two is installed on the cleaning shaft, gear one is meshingly connected with gear two, a rotary drive device one is installed on the frame, and the output end of the rotary drive device one is drivingly connected to the threaded rod.

[0008] Preferably, a second rotary drive device is installed on the frame, and an output end of the second rotary drive device is drivingly connected to the traction shaft.

[0009] Preferably, a plurality of groups of balancing shafts are mounted on the frame, and each group of balancing shafts is located on both sides of the axial direction of the contact point between the roving and the traction sleeve.

[0010] Preferably, a U-shaped plate is installed on the cleaning shaft, and the scraper is installed on the U-shaped plate.

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

[0012] Through the coordinated arrangement of the threaded rod and the cleaning shaft, the threaded rod drives the traction sleeve to slide on the traction shaft, while the cleaning shaft drives the scraper thereon to rotate, so as to clean the surface of the traction sleeve, and only after the contact part of the traction sleeve with the coarse yarn strip is moved out, the surface of the traction sleeve will be cleaned, thus avoiding the serious wear caused by the continuous contact between the scraper and the traction sleeve;

[0013] Through the coordination of the fixing ring and the mounting plate, when not being cleaned, the roving strip is always squeezed by the lifting shaft or the pressing shaft so that it is always in a taut state under appropriate tension; when the traction sleeve slides, the friction between the roving strip and the roving strip increases the tension of the roving strip; at this time, by adjusting the position of the mounting plate, the lifting shaft or the pressing shaft no longer squeezes the roving strip, thereby preventing the roving strip from being easily broken. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0015] Figure 2 For an embodiment of the utility model Figure 1 Enlarged view of point A in the middle;

[0016] Figure 3 It is a front cross-sectional view of an embodiment of the utility model;

[0017] Figure 4 A side cross-sectional view of an embodiment of the utility model;

[0018] Figure 5 It is a partial side cross-sectional view of a fixing ring of an embodiment of the utility model;

[0019] In the figure, 1, frame; 2, traction shaft; 3, clamping strip; 4, traction sleeve; 5, clamping groove; 6, threaded rod; 7, movable frame; 8, cleaning shaft; 9, fixing ring; 10, annular groove; 11, sliding block; 12, mounting plate; 13, lifting shaft; 14, pressing shaft; 15, scraper; 16, suction port; 17, limiting groove; 18, limiting block; 19, telescopic rod; 20, gear one; 21, gear two; 22, rotation drive device one; 23, rotation drive device two; 24, balance shaft; 25, U-shaped plate. DETAILED DESCRIPTION

[0020] 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.

[0021] See also Figures 1 to 5 The embodiment of the present application provides a preliminary shaping device for a roving machine, comprising a frame 1, a traction shaft 2 is rotatably connected to the frame 1, a plurality of clips 3 are arranged on the traction shaft 2, and a traction sleeve 4 is also included, a plurality of clip slots 5 are arranged on the traction sleeve 4, and the traction sleeve 4 is slidably connected to the traction shaft 2 through the clips 3 and the clip slots 5. A threaded rod 6 is rotatably connected to the frame (1), a moving frame 7 is slidably connected to the frame 1, the threaded rod 6 is threadedly connected to the moving frame 7, the moving frame 7 is slidably connected to the frame 1, and both ends of the moving frame 7 are in contact with the traction sleeve 4. A cleaning shaft 8 is rotatably connected to the frame 1, and the cleaning shaft 8 is located on one side of the inlet end of the traction sleeve 4, a fixing ring 9 is installed on the frame 1, the cleaning shaft 8 is coaxially arranged with the fixing ring 9, an annular groove 10 is provided on the fixing ring 9, a sliding block 11 is installed on the cleaning shaft 8, the sliding block 11 slides in the annular groove 10, a mounting plate 12 is rotatably connected to the sliding block 11, a lifting shaft 13 and a pressing shaft 14 are rotatably connected to the mounting plate 12, a scraper 15 is provided at both ends of the cleaning shaft 8, and there are two scrapers 15, which are installed on both sides of the axial direction of the mounting plate 12 on the cleaning shaft 8, a dust suction port 16 is installed on the frame 1, and the input end of the dust suction port 16 is connected to the negative pressure device.

[0022] In this embodiment, the roving first passes between the lifting shaft 13 and the pressing shaft 14 on the mounting plate 12, and then is wrapped around the traction sleeve 4 on the traction shaft 2 and is pulled by it. When the traction sleeve 4 needs to be cleaned, the threaded rod 6 drives the movable frame 7 that slides on the frame 1 and is threadedly connected to the threaded rod 6 to move, and then the movable frame 7 pushes the traction sleeve 4 to move axially on the traction shaft 2; due to the engagement of several clamping strips 3 with the clamping grooves 5, when the traction sleeve 4 is pushed, it still rotates with the traction shaft 2; when the traction sleeve 4 is not cleaned, the lifting shaft 13 on the mounting plate 12 lifts the passing roving, so that the roving is always in a taut state within the allowable tension range during the traction process; when When the traction sleeve 4 is pushed, the friction between the roving and its surface will increase the tension of the roving. At this time, the sliding block 11 sliding in the annular groove 10 on the fixed ring 9 is driven by the cleaning shaft 8 to slide, so that the lifting shaft 13 is lowered and the roving is no longer lifted, so that the tension of the roving is reduced, so that the roving is not stretched and will not move with the traction sleeve 4 when the traction sleeve 4 moves; the movement of the traction sleeve 4 and the rotation of the sliding block 11 should be carried out synchronously, and the sliding block 11 slides half a circle in the annular groove 10 when the traction sleeve 4 is driven to slide one-third. For example, the part of the traction sleeve 4 that contacts the coarse yarn is divided into three parts. When moving from the middle to the left, the sliding block 11 rotates half a circle in the annular groove 10, and when rotating a quarter of a circle, the scraper 15 cleans the traction sleeve 4, and the cleaned parts are the outer half of the left part, the right half of the middle part, and the entire right part; when the sliding block 11 rotates half a circle, the pressing shaft 14 gradually squeezes the coarse yarn, so that the coarse yarn whose tension is reduced during cleaning is squeezed again, and when the traction sleeve 4 moves from the left side to the middle and then to the right side, the sliding block 11 reverses on the annular groove 10, turns back to the previous half circle and then rotates half a circle in the opposite direction. During the rotation, the pressing shaft 14 reduces the squeezing of the coarse yarn so that the traction sleeve 4 can move smoothly, and the scrapers 15 at the upper and lower ends of the cleaning shaft 8 jointly clean the parts of the left part and half of the middle part and the entire right part, and half of the right part and the middle part and the entire left part. Therefore, it is concluded that when the part of the traction sleeve 4 wrapped with the coarse yarn is transferred from one end to the other end, under the premise of dividing the traction sleeve 4 into three equal parts, the two sides are cleaned twice and the middle is cleaned once; therefore, when the traction sleeve 4 is longer and divided into more parts, the part of the traction sleeve 4 in contact with the coarse yarn can be cleaned, and it is not always in contact and cleaned, thus avoiding the situation of excessive wear; the speed at which the traction sleeve 4 rotates with the traction shaft 2 is much higher than the rotation speed of the cleaning shaft 8 and the threaded rod 6, so that the traction sleeve 4 can be cleaned by the scraper 15; the fibers scraped off by the scraper 15 are sucked away by the negative pressure device connected to the dust suction port 16; the mounting plate 12 should always be in a vertical state during the sliding process with the sliding block 11.

[0023] In some embodiments, in order to prevent the mounting plate 12 from rotating when the mounting plate 12 slides with the sliding block 11, a limit slot 17 is provided on the frame 1, and a limit block 18 is slidably connected in the limit slot 17. A telescopic rod 19 is installed on the limit block 18, and the output end of the telescopic rod 19 is connected to the top of the mounting plate 12. When the mounting plate 12 slides with the sliding block 11, the mounting plate 12 can always be in a vertical state with the extension and contraction of the telescopic rod 19 and the sliding of the limit block 18 in the limit slot 17.

[0024] In some embodiments, in order to facilitate the synchronous rotation of the threaded rod 6 and the cleaning shaft 8, a gear 1 20 is installed on the threaded rod 6, a gear 21 is installed on the cleaning shaft 8, the gear 1 20 is meshed with the gear 2 21, and a rotating drive device 1 22 is installed on the frame 1. The rotating drive device 1 22 can be a servo motor, and the output end of the rotating drive device 1 22 is transmission-connected with the threaded rod 6. The rotating drive device 1 22 drives the threaded rod 6 to rotate, and the cleaning shaft 8 is driven to rotate through the meshing of the gear 1 20 and the gear 2 21.

[0025] In some embodiments, in order to facilitate the traction shaft 2 to drive the traction sleeve 4 to pull the coarse yarn, a rotating drive device 23 is installed on the frame 1. The rotating drive device 23 can be a motor, and the output end of the rotating drive device 23 is connected to the traction shaft 2 in a transmission manner.

[0026] In some embodiments, in order to prevent the roving strip from moving with the traction sleeve 4, a plurality of balancing shafts 24 are installed on the frame 1, and each balancing shaft 24 is located on both sides of the axial contact point between the roving and the traction sleeve 4. There can be three balancing shafts 24, which are respectively located at the inlet and outlet ends of the traction sleeve 4 and the bottom of the traction sleeve 4, so as to prevent the roving strip from being displaced by its own rotation effect.

[0027] In some embodiments, in order to facilitate the installation of the scraper 15 on the cleaning shaft 8 , a U-shaped plate 25 is installed on the cleaning shaft 8 , and the scraper 15 is installed on the U-shaped plate 25 .

[0028] 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.

[0029] 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.

[0030] 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.

[0031] 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.

[0032] 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. A preliminary shaping device for a roving frame, comprising a frame (1), characterized in that: The frame (1) is rotatably connected to a traction shaft (2), the traction shaft (2) is provided with a plurality of clips (3), and also includes a traction sleeve (4), the traction sleeve (4) is provided with a plurality of clips (5), the clips (3) are clipped with the clips (5), the frame (1) is rotatably connected to a threaded rod (6), the frame (1) is slidably connected to a moving frame (7), the threaded rod (6) is threadedly connected to the moving frame (7), both ends of the moving frame (7) are in contact with the traction sleeve (4), the frame (1) is rotatably connected to a cleaning shaft (8), the cleaning shaft (8) is located at the traction sleeve (4) On one side of the inlet end, a fixing ring (9) is installed on the frame (1), the cleaning shaft (8) is coaxially arranged with the fixing ring (9), an annular groove (10) is provided on the fixing ring (9), a sliding block (11) is installed on the cleaning shaft (8), the sliding block (11) slides in the annular groove (10), a mounting plate (12) is rotatably connected to the sliding block (11), a lifting shaft (13) and a pressing shaft (14) are rotatably connected to the mounting plate (12), a scraper (15) is provided at both upper and lower ends of the cleaning shaft (8), and a dust suction port (16) is installed on the frame (1).

2. The preliminary shaping device of the roving frame according to claim 1, characterized in that: The frame (1) is provided with a limit groove (17), a limit block (18) is slidably connected in the limit groove (17), a telescopic rod (19) is installed on the limit block (18), and the output end of the telescopic rod (19) is connected to the top of the mounting plate (12).

3. The preliminary shaping device of the roving frame according to claim 1 is characterized in that: The threaded rod (6) is provided with a gear 1 (20), the cleaning shaft (8) is provided with a gear 2 (21), the gear 1 (20) is meshingly connected with the gear 2 (21), the frame (1) is provided with a rotary drive device 1 (22), the output end of the rotary drive device 1 (22) is drivingly connected with the threaded rod (6).

4. The preliminary shaping device of the roving frame according to claim 1, characterized in that: A second rotary drive device (23) is mounted on the frame (1), and an output end of the second rotary drive device (23) is drivingly connected to the traction shaft (2).

5. The preliminary shaping device of the roving frame according to claim 1, characterized in that: A plurality of groups of balancing shafts (24) are mounted on the frame (1), and each group of balancing shafts (24) is located on both sides of the axial direction of the contact point between the roving and the traction sleeve (4).

6. The preliminary shaping device of the roving frame according to claim 1, characterized in that: A U-shaped plate (25) is mounted on the cleaning shaft (8), and the scraper (15) is mounted on the U-shaped plate (25).

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