Cotton sliver thickness detection device

Abstract

The utility model discloses a sliver thickness detection device, which relates to the technical field of cotton spinning and comprises a pinch plate and a spring piece, the top end of the pinch plate is provided with a measuring groove, the pinch plate is provided with a guide groove, the guide groove is connected and communicated with the measuring groove, the guide groove is gradually contracted to the measuring groove from the bottom end of the pinch plate, and the spring piece is arranged on the side of the guide groove. The spring piece, the guide groove and the measuring groove define a cotton sliver channel, the bottom end of the spring piece and the bottom end of the buckle plate are fixedly arranged, and when a cotton sliver extends out of the measuring groove, the top end of the spring piece can be extruded by the cotton sliver to move in the direction away from the buckle plate; the cotton sliver thickness measuring device can effectively improve the measuring accuracy of the cotton sliver thickness.

Description

Technical Field

[0001] The utility model relates to the technical field of cotton spinning, in particular to a cotton sliver thickness detection device. Background Art

[0002] In the cotton spinning process, the requirements for the detection accuracy of the cotton output thickness of the carding machine and the drawing frame are getting higher and higher, and the existing detection methods can no longer fully meet the market needs. Figure 1 As shown in the figure, the position of the first pressure roller 1' is fixed, and the bracket on which the second pressure roller 2' is installed is compressed by a spring 4', so that the second pressure roller 2' is close to the first pressure roller 1', and the cotton strips pass between the first pressure roller 1' and the second pressure roller 2'. Since the second pressure roller 2' is compressed by the spring 4', the second pressure roller 2' has a certain backward movement space. When the thickness of the cotton strips passing between the first pressure roller 1' and the second pressure roller 2' is different, the distance from the second pressure roller 2' to the first pressure roller 1' is different, that is, the distance between the bracket where the first pressure roller 1' and the second pressure roller 2' are located is different. An eddy current sensor 3' is installed on the bracket of the first pressure roller 1', and a metal detection surface is installed on the bracket of the second pressure roller 2'. The distance from the second pressure roller 2' to the first pressure roller 1', that is, the thickness of the cotton strips, is detected in real time by the eddy current sensor 3'. However, when the cotton sliver is compressed, it will spread out from the middle to both sides, and the cross-section will form an elliptical shape. The first pressing roller 1' and the second pressing roller 2' compress the center of this elliptical shape. The degree of spreading of the cotton sliver is different, and the thickness measured after compression is also different. In this case, the thickness of the cotton sliver measured is the thickness of the center part, and the measurement accuracy is low. Utility Model Content

[0003] The purpose of the utility model is to provide a sliver thickness detection device to solve the problems existing in the above-mentioned prior art and to effectively improve the measurement accuracy of the sliver thickness.

[0004] To achieve the above purpose, the present invention provides the following solutions:

[0005] The utility model provides a sliver thickness detection device, including a gusset plate and a spring sheet, a measuring groove is provided on the top of the gusset plate, a guide groove is provided on the gusset plate, the guide groove is connected to and communicated with the measuring groove, the guide groove gradually shrinks from the bottom end of the gusset plate to the measuring groove, the spring sheet is arranged on the side of the guide groove, the spring sheet, the guide groove and the measuring groove form a sliver channel, the bottom end of the spring sheet is fixed to the bottom end of the gusset plate, when the sliver extends from the measuring groove, the top end of the spring sheet can be squeezed by the sliver and move in the direction away from the gusset plate.

[0006] Preferably, the top of the buckle plate has two limiting protrusions, one limiting protrusion is arranged on one side of the measuring slot, and the other limiting protrusion is arranged on the other side of the measuring slot; the distance between one limiting protrusion and the adjacent side surface of the other limiting protrusion is equal to the width of the measuring slot.

[0007] Preferably, a distance detection sensor is further included, and the distance detection sensor can detect the distance that the top end of the spring sheet moves in a direction away from the pinch plate.

[0008] Preferably, it further comprises a distance detection sensor mounting base, wherein the distance detection sensor mounting base is used for fixedly mounting the distance detection sensor.

[0009] Preferably, it also includes a base, the bottom end of the buckle plate and the bottom end of the spring sheet are fixed on the top end of the base, a guide hole is opened on the base, the guide hole is connected to the guide groove, and the guide hole gradually shrinks from the bottom end of the base to the top end of the base.

[0010] Preferably, a connecting portion is provided on the top of the base, and the bottom end of the gusset plate, the bottom end of the spring sheet and the connecting portion are connected by bolts.

[0011] Preferably, it further includes a pad, which is placed between the spring sheet and the connecting portion, and the bottom end of the gusset plate, the bottom end of the spring sheet, the pad and the connecting portion are bolted together.

[0012] Compared with the prior art, the utility model has achieved the following technical effects:

[0013] The utility model provides a sliver thickness detection device, in which the guide groove can guide the sliver into the measuring groove, thereby playing the role of guiding the sliver. The width and depth of the measuring groove are fixed. When the sliver extends from the measuring groove, the top end of the spring sheet can be squeezed by the sliver and move in the direction away from the buckle plate. According to the distance that the top end of the spring sheet moves in the direction away from the buckle plate and the width and depth of the measuring groove, the accurate thickness value of the sliver can be obtained, thereby accurately measuring the thickness of the sliver, facilitating strict control of the quality of the sliver, accurately discovering sliver quality problems, and enabling users to take timely measures to reduce quality problems and reduce losses. On the carding machine, by detecting the sliver thickness value, it can be fed back to the leveling control system, and the leveling control system is adjusted according to the thickness of the sliver to control the thickness of the sliver within the design range. On the drawing machine, by detecting the sliver thickness value, various process indicators of the sliver can be accurately calculated to control the thickness of the output sliver. When the thickness of the sliver exceeds the allowable range, an alarm can be issued in time to stop the machine, thereby reducing the number of unqualified slivers and reducing user losses. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0015] Figure 1 This is a schematic diagram of an existing sliver thickness detection device;

[0016] Figure 2 This is a schematic diagram of the sliver thickness detection device provided by the utility model;

[0017] Figure 3 for Figure 2 Schematic diagram of the middle gusset plate;

[0018] In the figure: 1- buckle plate, 2-spring sheet, 3-measuring groove, 4-guide groove, 5-limiting protrusion, 6-base, 7-pad, 1'-first pressure roller, 2'-second pressure roller, 3'-eddy current sensor, 4'-spring. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] The purpose of the utility model is to provide a sliver thickness detection device to solve the problems existing in the above-mentioned prior art and to effectively improve the measurement accuracy of the sliver thickness.

[0021] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0022] like Figure 2-Figure 3 As shown, the utility model provides a sliver thickness detection device, including a buckle plate 1 and a spring sheet 2, a measuring groove 3 is provided at the top of the buckle plate 1, a guide groove 4 is provided on the buckle plate 1, the guide groove 4 is connected and communicated with the measuring groove 3, the guide groove 4 gradually shrinks from the bottom end of the buckle plate 1 to the measuring groove 3, the spring sheet 2 is arranged on the side of the guide groove 4, the spring sheet 2 and the guide groove 4 and the measuring groove 3 form a sliver channel, the bottom end of the spring sheet 2 is fixed to the bottom end of the buckle plate 1, when the sliver extends from the measuring groove 3, the top end of the spring sheet 2 can be squeezed by the sliver and move in the direction away from the buckle plate 1.

[0023] The utility model provides a sliver thickness detection device, in which the guide groove 4 can guide the sliver into the measuring groove 3, thereby playing the role of guiding the sliver. The width and depth of the measuring groove 3 are fixed. When the sliver extends from the measuring groove 3, the top end of the spring sheet 2 can be squeezed by the sliver and move in the direction away from the buckle plate 1. According to the distance that the top end of the spring sheet 2 moves in the direction away from the buckle plate 1 and the width and depth of the measuring groove 3, the accurate thickness value of the sliver can be obtained, thereby accurately measuring the thickness of the sliver, facilitating strict control of the quality of the sliver, accurately discovering sliver quality problems, and enabling users to deal with them in time, reduce quality problems, and reduce losses. On the carding machine, by detecting the sliver thickness value, it can be fed back to the leveling control system, and the leveling control system is adjusted according to the thickness of the sliver to control the thickness of the sliver within the design range. On the drawing machine, by detecting the sliver thickness value, various process indicators of the sliver can be accurately calculated to control the thickness of the output sliver. When the thickness of the sliver exceeds the allowable range, an alarm can be issued in time to stop the machine, thereby reducing the number of unqualified slivers and reducing user losses.

[0024] When the sliver thickness detection device provided by the present invention is in use, what needs to be calculated is the thickness value of the sliver before it enters the sliver thickness detection device provided by the present invention, the width value of the sliver before it enters the sliver thickness detection device provided by the present invention, the width and depth dimensions of the measuring groove 3, and the distance that the top end of the spring sheet 2 moves away from the buckle plate 1 are known.

[0025] Furthermore, the top of the buckle plate 1 has two limiting protrusions 5, one limiting protrusion 5 is arranged on one side of the measuring slot 3, and the other limiting protrusion 5 is arranged on the other side of the measuring slot 3; the distance between the adjacent side surfaces on one limiting protrusion 5 and the other limiting protrusion 5 is equal to the width of the measuring slot 3. By limiting the cotton strips by the two limiting protrusions 5, it can be ensured that the cotton strips are smoothly extended from the measuring slot 3.

[0026] Furthermore, the sliver thickness detection device provided by the present invention also includes a distance detection sensor, which can detect the distance that the top end of the spring sheet 2 moves away from the buckle plate 1, making the measurement more timely and accurate.

[0027] Furthermore, the sliver thickness detection device provided by the present invention also includes a distance detection sensor mounting base, which is used to fix the distance detection sensor for easy measurement.

[0028] Furthermore, the sliver thickness detection device provided by the present invention also includes a base 6, the bottom end of the buckle plate 1 and the bottom end of the spring sheet 2 are fixed on the top end of the base 6, and a guide hole is opened on the base 6. The guide hole is connected to the guide groove 4. The guide hole gradually shrinks from the bottom end of the base 6 to the top end of the base 6. The structure is simple and easy to install.

[0029] Furthermore, a connecting portion is provided on the top of the base 6, and the bottom end of the gusset plate 1, the bottom end of the spring sheet 2 and the connecting portion are bolted together for easy assembly and disassembly.

[0030] Furthermore, the sliver thickness detection device provided by the present invention also includes a pad 7, which is placed between the spring sheet 2 and the connecting part. The bottom end of the buckle plate 1, the bottom end of the spring sheet 2, the pad 7 and the connecting part are bolted together. The pads 7 of different thicknesses are selected to facilitate the installation of spring sheets 2 of different thicknesses.

[0031] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only intended to help understand the method and core concept of the present invention. At the same time, those skilled in the art will find that the specific implementation methods and application scopes may vary based on the concept of the present invention. In summary, the contents of this specification should not be construed as limiting the present invention.

Claims

1. A sliver thickness detection device, characterized in that: It includes a buckle plate and a spring sheet, a measuring groove is provided at the top of the buckle plate, a guide groove is provided on the buckle plate, the guide groove is connected to and communicated with the measuring groove, the guide groove gradually shrinks from the bottom end of the buckle plate to the measuring groove, the spring sheet is arranged on the side of the guide groove, the spring sheet, the guide groove and the measuring groove form a sliver channel, the bottom end of the spring sheet is fixed to the bottom end of the buckle plate, and when the sliver extends from the measuring groove, the top end of the spring sheet can be squeezed by the sliver and move in the direction away from the buckle plate.

2. The sliver thickness detection device according to claim 1, characterized in that: The top of the buckle plate has two limiting protrusions, one limiting protrusion is arranged on one side of the measuring slot, and the other limiting protrusion is arranged on the other side of the measuring slot; the distance between one limiting protrusion and the adjacent side surface of the other limiting protrusion is equal to the width of the measuring slot.

3. The sliver thickness detection device according to claim 1, characterized in that: A distance detection sensor is also included, and the distance detection sensor can detect the distance that the top end of the spring piece moves in a direction away from the pinch plate.

4. The sliver thickness detection device according to claim 3, characterized in that: It also includes a distance detection sensor mounting base, which is used to fix the distance detection sensor.

5. The sliver thickness detection device according to claim 1, characterized in that: It also includes a base, the bottom end of the buckle plate and the bottom end of the spring sheet are fixed on the top end of the base, a guide hole is opened on the base, the guide hole is connected to the guide groove, and the guide hole gradually shrinks from the bottom end of the base to the top end of the base.

6. The sliver thickness detection device according to claim 5, characterized in that: A connecting portion is provided on the top of the base, and the bottom end of the gusset plate, the bottom end of the spring sheet and the connecting portion are connected by bolts.

7. The sliver thickness detection device according to claim 6, characterized in that: It also includes a pad, which is placed between the spring sheet and the connecting part. The bottom end of the gusset plate, the bottom end of the spring sheet, the pad and the connecting part are bolted together.

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