Device for conveniently adjusting drafting gauge of roving frame

Abstract

The utility model relates to the technical field of spinning, in particular to a convenient and fast adjusting device for a drafting gauge of a roving frame, which comprises four groups of roller mounting seats sequentially arranged on a roller support along the roving conveying direction, at least one guide groove arranged on a cradle, four leather roller frames arranged in the guide groove in parallel, and a plurality of adjusting blocks arranged on the four leather roller frames, the long-distance brackets correspond to the four groups of roller mounting seats respectively and are fixed on the roller bracket; and the single brackets are fixed on the cradle. According to the utility model, the 45-degree inclined surface of the pushing block is matched with the wedge-shaped strip between the roller mounting seats, and the sliding block is matched with the wedge-shaped groove, so that the height change of the pushing block is the same as the distance change between the adjacent roller mounting seats or roller frames, and the synchronous adjustment of the roller distance and the roller distance can be realized; the position between the leather roller and the roller does not need to be calibrated after adjustment, the efficiency of adjusting the distance between the roller mounting seats is greatly improved, and the efficiency of adjusting the distance between the leather roller frames is improved.

Description

Technical Field

[0001] This utility model relates to the field of spinning technology, and in particular to a convenient adjustment device for the drafting distance of a roving frame. Background Technology

[0002] Existing roving frames have two types of drafting mechanisms: four-roller and three-roller. Their function is to draft and twist the yarn into roving, with four-roller roving frames being more commonly used. In a four-roller roving frame, the four rollers are arranged side-by-side along the yarn feed direction, and the cradle is also equipped with a rear roller, upper pin, front roller, and output roller, each corresponding to one of the four rollers. During use, the spacing between the rollers needs to be adjusted to ensure that the fibers are evenly distributed during drafting, avoiding problems such as fiber breakage and uneven yarn distribution.

[0003] Existing roving frame drafting spacing adjustment devices refer to roller spacing adjustment. Typically, a knob or screw is installed on the roller for adjusting the spacing, allowing adjustment of the spacing between two adjacent rollers. The adjusted knob or screw is then locked in place by a loosening and tightening device. Since the roller spacing is adapted to the fiber length in the twisted fiber sliver, when the fiber length difference is large, adjusting the roller spacing to the appropriate position using the knob or screw requires multiple position calibrations with a dial or ruler. The operation process is relatively cumbersome and the adjustment efficiency is relatively low. Utility Model Content

[0004] In view of this, the purpose of this utility model is to propose a convenient adjustment device for the drafting gap of a roving frame, so as to solve the problem of the cumbersome roller gap adjustment process.

[0005] To achieve the above objectives, this utility model provides a convenient adjustment device for the drafting distance of a roving frame, comprising four sets of roller mounting seats arranged sequentially on the roller support along the roving conveying direction, and further comprising:

[0006] At least one guide groove provided on the cradle.

[0007] Four roller frames are arranged side by side in the guide groove, each corresponding to one of the four sets of roller mounting seats.

[0008] A long-distance bracket fixed to the roller support and at least two single brackets fixed to the cradle.

[0009] Two bilateral adjustment sections are respectively located between the first and second sets of roller mounting seats and between the first and second skin roller frames, for synchronous adjustment of their spacing.

[0010] Two single-sided adjustment sections are respectively located between the third and fourth roller mounting seats and between the third and fourth roller frames, for synchronous adjustment of their spacing.

[0011] Preferably, the fourth roller mounting seat is fixedly mounted on the roller bracket, and the remaining roller mounting seats are slidably mounted on the roller bracket.

[0012] Preferably, the fourth roller frame is fixedly disposed in the guide groove at one end near the fourth set of roller mounting seats, and the top ends of the remaining roller frames are slidably disposed inside the guide groove.

[0013] Preferably, the length direction of the guide groove is on the same plane as the roving conveying direction and is parallel to each other.

[0014] Preferably, the bilateral adjustment section includes:

[0015] Two sliders are fixed to the top of the opposite surfaces of two adjacent roller mounting bases, and wedge-shaped grooves are provided on the opposite surfaces of the two sliders.

[0016] The wedge-shaped strip is slidably disposed within the wedge-shaped groove.

[0017] The push block is fixed between the opposing surfaces of the two wedge-shaped strips.

[0018] The servo electric cylinder, fixed on a long-distance bracket, is used to drive the push block to move up and down vertically in a direction perpendicular to the roving feed and to push two adjacent roller mounting seats closer or further apart.

[0019] Preferably, the plane on the push block near the slider is a 90° inclined plane, and the plane on the slider opposite to the push block is also a 90° inclined plane.

[0020] Preferably, the wedge groove matches the cross-sectional shape and size of the wedge strip, and the opening width of the wedge groove is smaller than its internal width.

[0021] Preferably, the structure of the bilateral adjustment section is the same as that of the unilateral adjustment section, and the sum of the lateral length changes of the bilateral adjustment section and the unilateral adjustment section is less than or equal to the distance between the second and third sets of roller mounting seats.

[0022] The beneficial effects of this utility model are:

[0023] This invention utilizes a combination of bilateral and single-sided adjustment sections between the first, second, third, and fourth roller mounting seats arranged in parallel, and also between corresponding roller frames. This allows a servo electric cylinder to push a push block vertically, perpendicular to the roving conveying direction. The 45° inclination of the push block, along with the wedge strips, sliders, and wedge grooves between the roller mounting seats, ensures that the height change of the push block matches the distance change between adjacent roller mounting seats or roller frames. This achieves synchronous adjustment of the roller and roller spacing, eliminating the need for post-adjustment calibration between the rollers and rollers, significantly improving the efficiency of spacing adjustment between roller mounting seats and roller frames. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a three-dimensional illustration of the present invention. Figure 1 ;

[0026] Figure 2 for Figure 1 The right view;

[0027] Figure 3 This is a three-dimensional illustration of the present invention. Figure 2 ;

[0028] Figure 4 for Figure 3 An enlarged schematic diagram of part A in the middle.

[0029] The diagram is marked as follows:

[0030] 1. Roller mounting base; 2. Long span support; 3. Double-sided adjustment section; 31. Push block; 32. Servo electric cylinder; 33. Wedge bar; 34. Slider; 35. Wedge groove; 4. Single-sided adjustment section; 5. Guide groove; 6. Single support; 7. Roller frame. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments.

[0032] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar words used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0033] like Figures 1 to 4 As shown, a convenient adjustment device for the drafting distance of a roving frame includes four sets of roller mounting seats 1 arranged sequentially on the roller support along the roving conveying direction, such that the four sets of roller mounting seats 1 are the first set, the second set, the third set, and the fourth set respectively along the roving conveying direction, and further includes:

[0034] At least one guide groove 5 is provided on the cradle.

[0035] Four roller frames 7 are arranged side by side in the guide groove 5, corresponding to four sets of roller mounting seats 1 respectively. Similarly, the four roller frames 7 are the first, second, third and fourth respectively along the roving conveying direction.

[0036] The long-distance bracket 2 is fixed to the roller bracket, and at least two single brackets 6 are fixed to the cradle.

[0037] Two bilateral adjustment sections 3 are respectively located between the first and second sets of roller mounting seats 1 and between the first and second roller frames 7, for synchronous adjustment of their spacing.

[0038] Two single-sided adjustment parts 4 are respectively located between the third and fourth roller mounting seats 1 and between the third and fourth roller frames 7, for synchronous adjustment of their spacing. The position of the single-sided adjustment part 4 corresponds to that of the single support 6.

[0039] This design allows for simultaneous adjustment of the distance between two adjacent roller mounting seats 1 and the distance between two adjacent roller frames 7. This ensures that the adjustment of the distance between the roller mounting seats 1 and the distance between the roller frames 7 is carried out synchronously, preventing relative displacement between the corresponding roller mounting seats 1 and roller frames 7 in the roving conveying direction, which would affect the twisting and conveying of the roving and improve the stability of the roving twisting and conveying. Furthermore, compared to the separate front and rear operations for adjusting the distance between the roller mounting seats 1 and the roller frames 7, this design eliminates the need for calibration of the corresponding positions between the roller mounting seats 1 and the roller frames 7, simplifying the adjustment steps and improving the efficiency of the adjustment operation.

[0040] like Figures 1 to 3 As shown, the fourth roller mounting seat 1 is fixedly mounted on the roller bracket, and the remaining roller mounting seats 1 are slidably mounted on the roller bracket.

[0041] The fourth roller holder 7 is fixedly installed in the guide groove 5 near one end of the fourth roller mounting seat 1, and the top of the remaining roller holder 7 is slidably installed inside the guide groove 5.

[0042] Since the fourth roller mounting seat 1 is located at the downstream end of the four roller mounting seats 1 in the roving conveying direction, the roving after twisting and drafting needs to be stably conveyed to the subsequent winding process. In order to avoid the other roller mounting seat 1 spacing adjustment operations affecting the stability of the roving output from the twisting and drafting process, the fourth roller mounting seat 1 needs to be fixed in position. At the same time, the corresponding fourth roller holder 7 also needs to be fixed in position.

[0043] like Figures 1 to 3 As shown, the length direction of the guide groove 5 is on the same plane and parallel to the roving conveying direction. This design allows the spacing adjustment operation of the roller frame 7 and the roller mounting seat 1 to affect the spacing between the roller and the roller, so that the spacing between the roller and the roller remains unchanged when the spacing between two adjacent rollers is adjusted and the spacing between two adjacent roller mounting seats 1 is adjusted, thus avoiding affecting the uniformity of roving production.

[0044] like Figures 2 to 4 As shown, the bilateral adjustment unit 3 includes:

[0045] Two sliders 34 are fixed to the top of the opposite surfaces of two adjacent roller mounting bases 1, and wedge grooves 35 are provided on the opposite surfaces of the two sliders 34.

[0046] The wedge-shaped strip 33 is slidably disposed in the wedge-shaped groove 35. The cross-sectional shape and size of the wedge-shaped groove 35 match those of the wedge-shaped strip 33, and the opening width of the wedge-shaped groove 35 is smaller than its internal width. This design allows the wedge-shaped strip 33 and the wedge-shaped groove 35 to mutually constrain all degrees of freedom except for the degree of freedom along their axial direction, so that the wedge-shaped strip 33 and the wedge-shaped groove 35 can make stable relative displacement.

[0047] The push block 31 is fixed between the opposing surfaces of the two wedge-shaped bars 33. The plane on the push block 31 near the slider 34 is inclined at 45°, and the plane on the slider 34 opposite to the push block 31 is also inclined at 45°. This design ensures that the lifting distance of the push block 31 and the spacing change of the two roller mounting seats 1 or roller frames 7 it pushes remain the same. This allows the adjustment of the spacing between two adjacent roller frames 7 and the adjustment of the spacing between two adjacent roller mounting seats 1 to be carried out simultaneously and synchronously. After the spacing adjustment, there is no need to recalibrate the corresponding positions of the roller frames 7 and roller mounting seats 1, simplifying the spacing adjustment steps and improving the efficiency of the spacing adjustment operation.

[0048] The servo electric cylinder 32 is fixed on the long-distance bracket 2 and is used to drive the push block 31 to move up and down in the vertical direction perpendicular to the roving conveyor and push the two adjacent roller mounting seats 1 to move closer or further apart.

[0049] This design ensures that the extension or retraction of the servo electric cylinder 32 and the increase or decrease in the distance between the two roller mounting seats 1 or the roller frame 7 on both sides of the push block 31 remain the same. Therefore, when adjusting the distance, it is only necessary to precisely control the change in the extension or retraction of the servo electric cylinder 32. The operation is simple and efficient, and there is no need to use a dial or ruler for calibration and measurement.

[0050] like Figures 1 to 4 As shown, the structure of the bilateral adjustment section 3 is the same as that of the single-sided adjustment section 4, and the sum of the lateral length changes of the bilateral adjustment section 3 and the single-sided adjustment section 4 is less than or equal to the distance between the second and third sets of roller mounting seats 1. Since the positions of the servo electric cylinders 32 in the bilateral adjustment section 3 and the single-sided adjustment section 4 are fixed, when the distance between the first and second sets of roller mounting seats 1 and the third and fourth sets of roller mounting seats 1 increases synchronously or one increases while the other remains unchanged, the amount of reduction in the distance between the second and third sets of roller mounting seats 1 is the same as the sum of the increases of the former, and vice versa. Similarly, it can be seen that the distance changes of the first and second roller frames 7 and the third and fourth roller frames 7 also conform to the distance change law of the four sets of roller mounting seats 1.

[0051] This design avoids collisions and squeezing between the second and third sets of roller mounting seats 1 or the second and third sets of roller frames 7, which would affect the accuracy of their spacing adjustment. Furthermore, since the positions of the fourth set of roller mounting seats 1 and roller frames 7 are fixed, adjusting the spacing of the third and fourth sets of roller mounting seats 1 or the third and fourth sets of roller frames 7 can be achieved simply by moving the third set of roller mounting seats 1. Therefore, the plane of the push block 31 in the single-sided adjustment section 4 near the third set of roller mounting seats 1 or the third set of roller frames 7 is designed as a 45° inclined plane. Simultaneously, the push block 31 in the single-sided adjustment section 4... The plane near the fourth roller mounting seat 1 or the third roller frame 7 is designed as a straight plane perpendicular to the roving conveying direction. This allows the wedge strip 33 and slider 34 in the single-sided adjustment section 4 to be located between the push block 31 and the third roller mounting seat 1 or the third roller frame 7. This enables the third roller mounting seat 1 or the third roller frame 7 to be moved independently, thereby adjusting the spacing between the third and fourth roller mounting seats 1 or the third and fourth roller frames 7. The difference between the single-sided adjustment section 4 and the double-sided adjustment section 3 is only the number of 45° inclined surfaces on the push block 31.

[0052] Working principle: When the spacing between the first and second sets of roller mounting seats 1 needs to be adjusted, the two double-sided adjustment parts 3 between the first and second sets of roller mounting seats 1 and the first and second sets of roller frames 7 are operated simultaneously. This controls the two servo electric cylinders 32 to extend or shorten synchronously, ensuring that the changes in the two servo electric cylinders 32 are the same. This drives the push block 31 to move closer to or away from the roller support. In this way, the wedge-shaped strip 33 and wedge-shaped groove 35, which are designed at a 45° angle, convert part of the pushing or pulling force on the push block 31 into a pushing or pulling force that moves the first and second sets of roller mounting seats 1 and the first and second sets of roller frames 7 closer or further apart. This achieves synchronous adjustment of the spacing between the first and second sets of roller mounting seats 1 and the first and second sets of roller frames 7, and makes the first and second sets of roller mounting seats 1... After the first and second roller frames 7 are adjusted, the distance between the roller mounting base 1 and the roller frame 7 remains unchanged. Similarly, when the distance between the third and fourth roller mounting bases 1 needs to be adjusted, the two single-sided adjustment parts 4 between the third and fourth roller mounting bases 1 and the third and fourth roller frames 7 can be operated synchronously. The operation is simple and efficient, without the need for multiple calibrations to detect the position data of the two roller mounting bases 1 and the two roller frames 7 for distance adjustment. It also eliminates the need to recalibrate the positional correspondence between the corresponding roller mounting bases 1 and roller frames 7 after the distance adjustment of the two adjacent roller mounting bases 1 and the two roller frames 7. This improves the efficiency of the distance adjustment of the two adjacent roller mounting bases 1 and the distance adjustment of the two adjacent roller frames 7, as well as the synchronization of the actions between the roller mounting bases 1 and the roller frames 7.

[0053] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.

[0054] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A convenient adjustment device for the drafting gap of a roving frame, comprising four sets of roller mounting seats (1) arranged sequentially on a roller support along the roving conveying direction, characterized in that, Also includes: At least one guide groove (5) is provided on the cradle; Four roller frames (7) are arranged side by side in the guide groove (5), corresponding to four sets of roller mounting seats (1); A long-distance bracket (2) fixed to the roller bracket and at least two single brackets (6) fixed to the cradle; Two bilateral adjustment sections (3) are respectively located between the first and second sets of roller mounting seats (1) and between the first and second roller frames (7) for synchronous adjustment of their spacing; Two single-sided adjustment parts (4) are respectively located between the third and fourth roller mounting seats (1) and between the third and fourth roller frames (7) for synchronous adjustment of their spacing.

2. The convenient adjustment device for drafting distance on a roving frame according to claim 1, characterized in that, The fourth roller mounting seat (1) is fixedly mounted on the roller bracket, and the remaining roller mounting seats (1) are slidably mounted on the roller bracket.

3. The convenient adjustment device for the drafting distance of a roving frame according to claim 1, characterized in that, The fourth roller frame (7) is fixedly installed in the guide groove (5) at one end near the fourth roller mounting seat (1), and the top of the remaining roller frames (7) is slidably installed inside the guide groove (5).

4. The convenient adjustment device for the drafting distance of a roving frame according to claim 1, characterized in that, The length direction of the guide groove (5) is on the same plane as the roving conveying direction and is parallel to each other.

5. The convenient adjustment device for the drafting distance of a roving frame according to claim 1, characterized in that, The bilateral adjustment unit (3) includes: Two sliders (34) are fixed to the top of the opposite surfaces of two adjacent roller mounting bases (1), and wedge grooves (35) are provided on the opposite surfaces of the two sliders (34); A wedge-shaped strip (33) is slidably disposed within a wedge-shaped groove (35); The push block (31) is fixed between the opposing surfaces of the two wedge-shaped strips (33); A servo electric cylinder (32) is fixed on a long-distance bracket (2) to drive the push block (31) to move up and down in a vertical direction perpendicular to the roving conveyor and push two adjacent roller mounting seats (1) to move closer or further apart.

6. The convenient adjustment device for the drafting distance of a roving frame according to claim 5, characterized in that, The plane on the push block (31) near the slider (34) is a 45° inclined plane, and the plane on the slider (34) opposite to the push block (31) is also a 45° inclined plane.

7. The convenient adjustment device for the drafting distance of a roving frame according to claim 5, characterized in that, The wedge groove (35) matches the cross-sectional shape and size of the wedge strip (33), and the opening width of the wedge groove (35) is smaller than its internal width.

8. The convenient adjustment device for drafting distance on a roving frame according to claim 7, characterized in that, The structure of the bilateral adjustment section (3) is the same as that of the single-sided adjustment section (4), and the sum of the lateral length changes of the bilateral adjustment section (3) and the single-sided adjustment section (4) is less than or equal to the distance between the second and third sets of roller mounting seats (1).

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