Device for assisting in measuring heat shrinkage rate of twisted yarn

Abstract

The utility model belongs to the technical field of measurement, and relates to a device for assisting in measuring the thermal shrinkage rate of twisted yarns, which comprises a base, a bracket, a yarn hanging rod, a guide rail, a clamping piece I and a weight, the bracket is vertically fixed on the base; the yarn hanging rod is horizontally fixed on the bracket; the guide rail comprises a vertical rod I and a vertical rod II, the vertical rod I and the vertical rod II are located below the yarn hanging rod, and the lower end of the vertical rod I and the lower end of the vertical rod II are both fixedly connected with the base. Before thermal shrinkage of the twisted wire is measured, one end of the twisted wire is fixed on the wire hanging rod, and the other end of the twisted wire is fixedly connected with the weight; the twisted wire is positioned between the vertical rod I and the vertical rod II; the clamping piece I is used for clamping the twisted yarn and is connected with the vertical rod I and the vertical rod II in an up-and-down sliding manner; in the vertical direction, the clamping piece I is located between the wire hanging rod and the weight. According to the utility model, the problem that the twisted silk is easy to twist and untwist in the measuring process is effectively solved, and the measuring accuracy of the thermal shrinkage rate of the twisted silk is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the measurement technical field relates to a device for auxiliary measurement of hot shrinkage of twisted yarn. BACKGROUND

[0002] With the continuous expansion of the application field of textile production, especially in the field of industrial yarn, different uses have different dry heat shrinkage requirements. Especially some customers with high requirements for heat shrinkage require manufacturers to provide accurate dry heat shrinkage values.

[0003] One dry heat shrinkage test method recorded in the test standard FZ / T 50050-2020 is to take a fixed length of twisted yarn, fold the twisted yarn, knot the two ends of the twisted yarn to form a yarn ring, place the yarn ring vertically, hang the upper end of the yarn ring on the hook of the vertical ruler, fix the lower end of the yarn ring with a weight, and then place it in the oven. However, the twisted yarn is folded and hung, and the twisted yarn itself has a twisting shrinkage force, which will cause the twisted knot phenomenon of the double yarn bundle, and the twisted knot will hinder the heat shrinkage of the twisted yarn, resulting in a smaller heat shrinkage rate obtained by testing. If the end of the single twisted yarn is directly fixed with the hook of the vertical ruler, and the other end is hung with a weight, the twisted yarn will be untwisted, driving the weight to rotate, thus causing the length of the twisted yarn to increase, which will also make the heat shrinkage rate obtained by testing smaller. Inaccurate measurement of heat shrinkage will result in inaccurate quality control of the next product in the use process, causing quality accidents and causing huge property losses to customers and manufacturers.

[0004] Therefore, it is of great significance to study a device for auxiliary measurement of heat shrinkage of twisted yarn to improve the accuracy of measuring the heat shrinkage of twisted yarn. INVENTION CONTENTS

[0005] The utility model aims at solving the problems in the prior art and provides a device for auxiliary measurement of heat shrinkage of twisted yarn.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0007] A device for auxiliary measurement of heat shrinkage of twisted yarn, the device for auxiliary measurement of heat shrinkage of twisted yarn comprises a base, a support, a yarn hanging rod, a guide rail, a clamping piece I and a weight;

[0008] The support is vertically fixed on the base; the yarn hanging rod is horizontally fixed on the support;

[0009] The guide rail comprises a vertical rod I and a vertical rod II, the vertical rod I and the vertical rod II are located below the yarn hanging rod, and the lower ends of the vertical rod I and the vertical rod II are fixedly connected with the base;

[0010] Before measuring the heat shrinkage of the twisted yarn, one end of the twisted yarn is fixed on the yarn hanging rod, and the other end of the twisted yarn is fixedly connected with the weight; the twisted yarn is located between the vertical rod I and the vertical rod II;

[0011] The clamping piece I is used for clamping the twisted yarn and is simultaneously connected with the vertical rod I and the vertical rod II in the up-down sliding mode; along the vertical direction, the clamping piece I is located between the yarn hanging rod and the weight;

[0012] After one end of the twisted yarn is fixed on the yarn hanging rod through the fixing device and the other end of the twisted yarn is fixedly connected with the weight, the clamping piece I clamps the twisted yarn, and the twisted yarn between the yarn hanging rod and the clamping piece I cannot rotate through cooperation with the guide rail, so that the twisted yarn cannot be untwisted; and since the clamping piece I is simultaneously connected with the vertical rod I and the vertical rod II in the up-down sliding mode, when the device is placed in the oven, the heat shrinkage of the twisted yarn is not affected, and the heat shrinkage can be specifically calculated as follows: a mark is made at a certain position of the twisted yarn between the yarn hanging rod and the clamping piece I, the distance between the mark and the yarn hanging rod before and after heating is compared, and then the heat shrinkage is obtained.

[0013] As a preferred technical solution:

[0014] The device for assisting in measuring the heat shrinkage of the twisted yarn as described above, the clamping piece I comprises a clamping piece body I, a clamp I and two sliding sleeves I; the two sliding sleeves I are respectively sleeved on the vertical rod I and the vertical rod II and are respectively connected with the vertical rod I and the vertical rod II in the sliding mode; the two sliding sleeves I are fixedly connected with the clamping piece body I; the clamp I is fixedly connected with the clamping piece body I, and the clamp I is used for clamping the twisted yarn.

[0015] The device for assisting in measuring the heat shrinkage of the twisted yarn as described above, the device for assisting in measuring the heat shrinkage of the twisted yarn further comprises a clamping piece II; the clamping piece II comprises a clamping piece body II, a clamp II and two sliding sleeves II; the two sliding sleeves II are respectively sleeved on the vertical rod I and the vertical rod II and are respectively connected with the vertical rod I and the vertical rod II in the sliding mode; the two sliding sleeves II are fixedly connected with the clamping piece body II; the clamp II is fixedly connected with the clamping piece body II, and the clamp II is used for clamping the twisted yarn; along the vertical direction, the clamping piece II is located between the clamping piece I and the weight, and the clamping piece II is used for secondarily fixing the twisted yarn.

[0016] The device for assisting in measuring the heat shrinkage of the twisted yarn as described above, a scale is arranged on the support along the vertical direction; an indicating needle is arranged on the clamping piece I; the indicating needle is horizontally placed and located above the lower surface of the clamp I; the indicating needle points to the scale, and the indicating needle is used for reading the distance between the yarn hanging rod and the indicating needle in cooperation with the scale;

[0017] When the indicating needle is arranged, the heat shrinkage can be calculated by reading the scale and comparing the scales before and after heating.

[0018] The device for assisting in measuring the thermal shrinkage rate of twisted yarn, one end of the yarn hanging rod is fixedly connected with the support, and a threaded hole is arranged on the end face of the other end of the yarn hanging rod; the device for assisting in measuring the thermal shrinkage rate of twisted yarn further comprises a fixing device, the fixing device comprising a bolt, a gasket and a nut; the bolt is used for being threadedly connected with the nut after penetrating through the gasket and being threadedly fixedly connected with the threaded hole; the nut is used for rotating and moving the gasket, so that the gasket is tightly attached to the end face of the other end of the yarn hanging rod to fix one end of the twisted yarn on the yarn hanging rod; specifically, one end of the twisted yarn is wound on the bolt and located between the gasket and the yarn hanging rod, and then the nut is rotated to tightly abut the gasket against the end face of the other end of the yarn hanging rod, so that one end of the twisted yarn is fixed on the yarn hanging rod.

[0019] The device for assisting in measuring the thermal shrinkage rate of twisted yarn, the support comprises vertical rods III and IV;

[0020] The lower ends of the vertical rods III and IV are fixed on the base; the yarn hanging rod is horizontally fixed on the vertical rod III; the vertical rod I is located between the vertical rods III and IV, and the vertical rod II is located between the vertical rod I and the vertical rod IV;

[0021] Along the vertical direction, the vertical rods III and IV are provided with scales.

[0022] The device for assisting in measuring the thermal shrinkage rate of twisted yarn, the support further comprises a horizontal rod I; the two ends of the horizontal rod I are fixedly connected with the upper ends of the vertical rods III and IV respectively, and the horizontal rod I is used for facilitating the hand to hold the device for assisting in measuring the thermal shrinkage rate of twisted yarn.

[0023] The device for assisting in measuring the thermal shrinkage rate of twisted yarn, the guide rail further comprises horizontal rods II and III;

[0024] One end of the horizontal rod II is fixedly connected with the upper end of the vertical rod I, and the other end of the horizontal rod II is fixedly connected with the vertical rod III; one end of the horizontal rod III is fixedly connected with the upper end of the vertical rod II, and the other end of the horizontal rod III is fixedly connected with the vertical rod IV; in this way, the clamping piece I can be prevented from being separated from the guide rail.

[0025] Beneficial effects:

[0026] The device effectively solves the problems that the twisted yarn is prone to be twisted and untwisted during the measurement process, thereby improving the accuracy of the measurement of the thermal shrinkage rate of the twisted yarn and avoiding quality accidents and property losses caused by inaccurate measurement. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 It is a structural schematic view of the device for assisting in measuring the thermal shrinkage rate of twisted yarn;

[0028] Wherein, 1-support, 2-hanging wire rod, 4-twisted wire, 5-guide rail, 6-clamp piece I, 7-clamp piece II, 8-weight, 9-base. DETAILED DESCRIPTION

[0029] The utility model will be further described below in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the utility model and are not used to limit the scope of the utility model. In addition, it should be understood that after reading the content taught by the utility model, those skilled in the art can make various changes or modifications to the utility model, and these equivalent forms also fall within the scope defined by the claims attached to the present application.

[0030] A device for assisting in measuring the hot shrinkage rate of twisted wire, as shown in Figure 1 Fig. 1, comprises a base 9, a support 1, a wire hanging rod 2, a guide rail 5, a clamp piece I 6, a weight 8, a clamp piece II 7 and a fixing device.

[0031] The support 1 comprises a vertical rod III, a vertical rod IV and a horizontal rod I; the lower ends of the vertical rod III and the vertical rod IV are fixed on the base 9, and the two ends of the horizontal rod I are fixedly connected with the upper ends of the vertical rod III and the vertical rod IV respectively; along the vertical direction, the vertical rod III and the vertical rod IV are provided with scales;

[0032] The wire hanging rod 2 is horizontally arranged, one end of which is fixed on the vertical rod III, and the other end is provided with a threaded hole on the end face; the fixing device comprises a bolt, a gasket and a nut; the bolt is used to be threadedly connected with the nut after penetrating through the gasket and being threadedly fixedly connected with the threaded hole;

[0033] The guide rail 5 comprises a vertical rod I, a vertical rod II, a horizontal rod II and a horizontal rod III; the vertical rod I and the vertical rod II are located below the wire hanging rod 2, and the lower ends of the vertical rod I and the vertical rod II are fixedly connected with the base 9; the vertical rod I is located between the vertical rod III and the vertical rod IV, and the vertical rod II is located between the vertical rod I and the vertical rod IV; one end of the horizontal rod II is fixedly connected with the upper end of the vertical rod I, and the other end of the horizontal rod II is fixedly connected with the vertical rod III; one end of the horizontal rod III is fixedly connected with the upper end of the vertical rod II, and the other end of the horizontal rod III is fixedly connected with the vertical rod IV;

[0034] The clamping piece I 6 comprises a clamping piece body I, a clamp I and two sliding sleeves I; the two sliding sleeves I are sleeved on the vertical rod I and the vertical rod II respectively and are in sliding connection with the vertical rod I and the vertical rod II respectively; the two sliding sleeves I are fixedly connected with the clamping piece body I; the clamp I is fixedly connected with the clamping piece body I and is used for clamping the twisted yarn; along the vertical direction, the clamping piece I 6 is located between the yarn hanging rod 2 and the weight 8; an indicating needle is arranged on the clamping piece I 6, the indicating needle is horizontally placed and is located above the lower surface of the clamp I; the indicating needle points to the scale on the vertical rod III and / or the vertical rod IV, and the indicating needle is used for reading the distance between the yarn hanging rod 2 and the indicating needle in cooperation with the scale.

[0035] The clamping piece II 7 comprises a clamping piece body II, a clamp II and two sliding sleeves II; the two sliding sleeves II are sleeved on the vertical rod I and the vertical rod II respectively and are in sliding connection with the vertical rod I and the vertical rod II respectively; the two sliding sleeves II are fixedly connected with the clamping piece body II; the clamp II is fixedly connected with the clamping piece body II and is used for clamping the twisted yarn; along the vertical direction, the clamping piece II 7 is located between the clamping piece I 6 and the weight 8.

[0036] Specific use process is: before measuring the heat shrinkage rate of the twisted yarn 4, one end of the twisted yarn 4 is wound on the bolt and located between the gasket and the yarn hanging rod 2, then the gasket is abutted against the end surface of the other end of the yarn hanging rod 2 by rotating the nut, so that one end of the twisted yarn 4 is fixed on the yarn hanging rod 2; the other end of the twisted yarn 4 is fixedly connected with the weight 8; after the twisted yarn 4 is fixed, the twisted yarn 4 is located between the vertical rod I and the vertical rod II; then, the clamping piece I 6 is used to clamp the twisted yarn 4, and the twisted yarn 4 between the yarn hanging rod 2 and the clamping piece I 6 cannot rotate through cooperation with the guide rail 5, so that the twisted yarn 4 in this section cannot be untwisted; the distance between the yarn hanging rod and the indicating needle is read through cooperation of the indicating needle and the scale; then, the clamping piece II 7 is used to clamp the twisted yarn 4, and the twisted yarn 4 is fixed again; finally, the whole device is placed in an oven, and after heating, the distance between the yarn hanging rod and the indicating needle is read again through cooperation of the indicating needle and the scale, the distances before and after heating are compared, so that the heat shrinkage rate is obtained.

Claims

1. A device for assisting in measuring the heat shrinkage of a twisted yarn, characterized in that, The device for assisting in measuring the thermal shrinkage rate of twisted yarn comprises a base (9), a support (1), a yarn hanging rod (2), a guide rail (5), a clamping piece I (6) and a weight (8); The support (1) is vertically fixed on the base (9); the yarn hanging rod (2) is horizontally fixed on the support (1); The guide rail (5) comprises vertical rods I and II, which are located below the yarn hanging rod (2) and are fixedly connected with the base (9) at the lower ends thereof; Before measuring the thermal shrinkage rate of the twisted yarn, one end of the twisted yarn is fixed on the yarn hanging rod (2), and the other end of the twisted yarn is fixedly connected with the weight (8); the twisted yarn is located between the vertical rods I and II; The clamping piece I (6) is used for clamping the twisted yarn and is simultaneously slidably connected with the vertical rods I and II; Along the vertical direction, the clamping piece I (6) is located between the yarn hanging rod (2) and the weight (8).

2. A device for assisting in measuring the heat shrinkage of a yarn according to claim 1, wherein The clamping piece I (6) comprises a clamping piece main body I, a clamp I and two slide sleeves I; the two slide sleeves I are respectively sleeved on the vertical rods I and II and are respectively slidably connected with the vertical rods I and II; the two slide sleeves I are fixedly connected with the clamping piece main body I; the clamp I is fixedly connected with the clamping piece main body I and is used for clamping the twisted yarn.

3. A device for assisting in measuring the heat shrinkage of a yarn according to claim 2, wherein The device for assisting in measuring the thermal shrinkage rate of twisted yarn further comprises a clamping piece II (7); the clamping piece II (7) comprises a clamping piece main body II, a clamp II and two slide sleeves II; The two slide sleeves II are respectively sleeved on the vertical rods I and II and are respectively slidably connected with the vertical rods I and II; the two slide sleeves II are fixedly connected with the clamping piece main body II; the clamp II is fixedly connected with the clamping piece main body II and is used for clamping the twisted yarn; Along the vertical direction, the clamping piece II (7) is located between the clamping piece I (6) and the weight (8).

4. A device for assisting in measuring the heat shrinkage of a yarn according to claim 2, wherein Along the vertical direction, the support (1) is provided with a scale; the clamping piece I (6) is provided with an indicating needle; the indicating needle is horizontally placed and located above the lower surface of the clamp I; the indicating needle points to the scale and is used for reading the distance between the yarn hanging rod (2) and the indicating needle in cooperation with the scale.

5. A device for measuring the heat shrinkage of a yarn according to claim 1, wherein One end of the yarn hanging rod (2) is fixedly connected with the support (1), and the other end of the yarn hanging rod (2) is provided with a threaded hole in the end face thereof; the device for assisting in measuring the thermal shrinkage rate of twisted yarn further comprises a fixing device, which comprises a bolt, a gasket and a nut; the bolt is used for being threadedly connected with the nut after penetrating through the gasket and being threadedly fixedly connected with the threaded hole.

6. A device for measuring the heat shrinkage of a yarn according to claim 1, wherein The support (1) comprises vertical rods III and IV; The lower ends of the vertical rods III and IV are fixed on the base (9); the yarn hanging rod (2) is horizontally fixed on the vertical rod III; the vertical rod I is located between the vertical rods III and IV, and the vertical rod II is located between the vertical rods I and IV; Along the vertical direction, the vertical rods III and IV are provided with scales.

7. A device for assisting in measuring the heat shrinkage of a yarn according to claim 6, wherein The support (1) further comprises a horizontal rod I; the two ends of the horizontal rod I are fixedly connected with the upper ends of the vertical rods III and IV, respectively.

8. A device for assisting in measuring the heat shrinkage of a yarn according to claim 7, wherein The guide rail (5) further comprises horizontal rods II and III; One end of the horizontal rod II is fixedly connected with the upper end of the vertical rod I, and the other end of the horizontal rod II is fixedly connected with the vertical rod III; one end of the horizontal rod III is fixedly connected with the upper end of the vertical rod II, and the other end of the horizontal rod III is fixedly connected with the vertical rod IV.

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