Lead frame for fine sand uniformity testing device

Abstract

The utility model relates to a kind of wire guide frame for fine sand uniformity testing device, including base, the rear part of the base is separately installed two oblique settings and forms the yarn drum mounting frame of eight-shaped, several yarn drum insertion rods that are obliquely inclined with front end upwards are spaced installed on the yarn drum mounting frame from bottom to top, rubber sleeve for cooperating with the inner ring of fine yarn drum is sleeved on the yarn drum insertion rod, the rubber sleeve is rotatably connected with yarn drum insertion rod;The vertical guide frame is installed in the front side middle part of the base, the vertical guide frame is spaced and is provided with several longitudinal rods of gradually shortened length from bottom to top, the yarn guide of rotatable adjustment is inserted in the both ends of longitudinal rod. The wire guide frame is convenient and helps to prevent fine yarn drum from separating from yarn drum insertion rod.

Description

Technical Field

[0001] This utility model relates to a guide wire frame for a fine sand uniformity testing device. Background Technology

[0002] After yarn spinning, textile mills typically need to sample the yarn to check its evenness and other properties. To test evenness, several yarn bobbins are placed on a yarn guide frame, and then tested using an evenness analyzer. In existing yarn guide frames, the bobbin inserts for holding the bobbins are mounted horizontally. However, when the yarn is pulled, excessive force can cause the bobbins to detach from these inserts. After detachment, manual repositioning is required, which is inconvenient. Utility Model Content

[0003] The purpose of this invention is to provide a guide wire frame for a fine sand uniformity testing device, which helps to prevent the fine yarn bobbin from detaching from the yarn bobbin insert rod.

[0004] The technical solution of this utility model is as follows: a guide frame for a fine sand uniformity testing device, including a base, two inclined yarn tube mounting frames forming a figure-eight shape are respectively installed on the rear part of the base, and several yarn tube insertion rods with upwardly inclined front ends are installed on the yarn tube mounting frames from bottom to top, and rubber sleeves for cooperating with the inner ring of the fine yarn tube are fitted on the yarn tube insertion rods, and the rubber sleeves are rotatably connected to the yarn tube insertion rods; a guide frame is vertically installed in the middle of the front side of the base, and several longitudinal rods with gradually shortening lengths are inserted through the guide frame from bottom to top, and yarn guides that can be rotated and adjusted are inserted at both ends of the longitudinal rods.

[0005] Furthermore, the bottom surface of the base is equipped with a number of casters at intervals, and the casters located on the front side are equipped with a braking structure.

[0006] Furthermore, the lower end of the yarn bobbin mounting bracket is fixed to the side of the base, and the upper ends of the two yarn bobbin mounting brackets extend upward and are connected to the upper end of the guide bracket via a fixing bracket to form a whole.

[0007] Furthermore, the yarn tube insertion rod is obliquely mounted on the yarn tube mounting frame in the transverse direction, and the angle between it and the horizontal plane is 5°~10°.

[0008] Furthermore, the rubber sleeve is cylindrical and rotatably connected to the yarn tube insertion rod via a bearing. The front end of the rubber sleeve is rounded, and the rear end face of the rubber sleeve is close to the front side of the yarn tube mounting bracket.

[0009] Furthermore, the number of yarn tube insert rods is twice that of the longitudinal rods, with two yarn tube insert rods at the same height corresponding to one longitudinal rod, and the longitudinal rod being higher in the vertical direction than the yarn tube insert rods.

[0010] Furthermore, the yarn guide is provided with a yarn guide hole in the transverse direction, and a sleeve part for fitting onto the end of the longitudinal rod is provided on one side of the yarn guide. The inner wall of the sleeve part is provided with a rubber layer that provides rotational damping between the yarn guide and the longitudinal rod.

[0011] Furthermore, the two ends of the guide wire hole are fitted with wire-passing ceramic eyes.

[0012] Compared with the prior art, the present invention has the following advantages: 1. The conductor frame has a compact structure, which facilitates the rotation of the yarn bobbin on the yarn bobbin insertion rod and prevents the yarn from detaching from the yarn bobbin on the yarn bobbin insertion rod.

[0013] 2. The yarn guide can rotate on the longitudinal bar, and there is rotational damping between the yarn guide and the longitudinal bar, which helps the yarn guide maintain the desired position after rotation. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a structural diagram of the yarn tube insertion rod and yarn tube mounting frame of this utility model; Figure 3 This is a longitudinal sectional view of the yarn guide of this utility model; Figure 4 This is a cross-sectional view of the yarn guide of this utility model; In the diagram: 10-base, 11-caster, 12-fixed frame, 20-yarn tube mounting frame, 30-yarn tube insertion rod, 31-rubber sleeve, 32-angle, 33-bearing, 40-guide frame, 50-longitudinal rod, 60-yarn guide, 61-yarn guide hole, 62-sleeve section, 63-rubber layer, 64-ceramic eye for yarn passage. Detailed Implementation

[0015] To make the above-mentioned features and advantages of this utility model more easily understood, specific embodiments are described below in conjunction with the accompanying drawings, but this utility model is not limited thereto.

[0016] refer to Figures 1 to 4 A guide frame for a fine sand uniformity testing device includes a base 10. Several casters 11 are spaced apart on the bottom surface of the base, with the front casters equipped with brakes to facilitate movement of the entire guide frame. Two inclined yarn bobbin mounting frames 20, forming a V-shape, are mounted on the rear of the base. Each mounting frame has several upward-sloping yarn bobbin insertion rods 30 installed at intervals from bottom to top. Each insertion rod is fitted with a rubber sleeve 31 for engaging with the inner ring of the fine yarn bobbin. The rubber sleeve is rotatably connected to the insertion rod. The inclined arrangement of the insertion rods and the engagement of the rubber sleeve with the inner ring of the fine yarn bobbin effectively prevent the yarn bobbin from detaching from the insertion rods without affecting its rotation. A guide frame 40 is vertically installed in the middle of the front side of the base. The guide frame is provided with several longitudinal rods 50 of gradually shortening length from bottom to top. Both ends of the longitudinal rods are connected to a rotatable and adjustable yarn guide 60 so as to guide the yarn. The yarn guide can be rotated to facilitate adjustment of the yarn guiding angle.

[0017] In this embodiment, in order to improve the stability of the entire conductor frame, the lower end of the yarn bobbin mounting bracket is fixed to the side of the base, and the upper ends of the two yarn bobbin mounting brackets extend upward and are connected to the upper end of the guide frame through the fixing bracket 12 to form a whole.

[0018] In this embodiment, in order to better install the yarn bobbin, the yarn bobbin insertion rod is installed obliquely on the yarn bobbin mounting frame in the horizontal direction, and the angle 32 with the horizontal plane is 5°~10°.

[0019] In this embodiment, the rubber sleeve is cylindrical and approximately 2-3 cm in length. The rubber sleeve is positioned on the front side of the yarn bobbin insert rod near the bobbin mounting bracket. The rubber sleeve is rotatably connected to the yarn bobbin insert rod via a bearing 33 housed within it. For example, an NSK686 deep groove ball bearing can be used. The yarn bobbin insert rod is equipped with a limiting structure to prevent axial movement of the rubber sleeve. The front end of the rubber sleeve has a rounded corner to facilitate better fitting of the yarn bobbin onto the rubber sleeve, and the rubber material of the sleeve also facilitates the disassembly of the yarn roll.

[0020] In this embodiment, the number of yarn tube insert rods is twice that of the longitudinal rods. Two yarn tube insert rods at the same height correspond to one longitudinal rod, and the longitudinal rod is higher in the vertical direction than the yarn tube insert rods, which facilitates the upward guiding of the yarn.

[0021] In this embodiment, the yarn guide is made of plastic. The yarn guide has a guide hole 61 arranged laterally on the yarn guide. One side of the yarn guide is provided with a sleeve part 62 for fitting onto the end of the longitudinal rod. The inner wall of the sleeve part is provided with a rubber layer 63 that provides rotational damping between the yarn guide and the longitudinal rod, which facilitates the rotation of the yarn guide around the longitudinal rod and makes it difficult for the yarn guide to slip off the longitudinal rod.

[0022] In this embodiment, the two ends of the guide hole are equipped with ceramic eyelets 64 to improve the wear resistance of the guide hole and reduce yarn wear.

[0023] If this utility model discloses or relates to mutually fixedly connected parts or structural components, then unless otherwise stated, a fixed connection can be understood as: a detachable fixed connection (e.g., using bolts or screws) or a non-detachable fixed connection (e.g., riveting or welding). Of course, mutually fixed connections can also be replaced by an integral structure (e.g., manufactured using a casting process) (except where it is obviously impossible to use an integral forming process).

[0024] In addition, unless otherwise stated, the terms used to indicate positional relationships or shapes in any of the technical solutions disclosed in this utility model above include states or shapes that are similar to, close to, or approximate with them.

[0025] Any component provided by this utility model can be assembled from multiple individual components, or it can be a single component manufactured by a one-piece molding process.

[0026] The above description is only a preferred embodiment of the present utility model. All equivalent changes and modifications made within the scope of the patent application of the present utility model shall be covered by the present utility model.

Claims

1. A guide frame for a fine sand uniformity testing device, comprising a base, characterized in that, The rear part of the base is equipped with two inclined yarn tube mounting frames that form a figure-eight shape. Each yarn tube mounting frame has several yarn tube insertion rods with their front ends tilted upwards at intervals from bottom to top. Each yarn tube insertion rod is fitted with a rubber sleeve for engaging with the inner ring of the yarn tube. The rubber sleeve is rotatably connected to the yarn tube insertion rod. A guide frame is vertically installed in the middle of the front side of the base. The guide frame has several longitudinal rods of gradually decreasing length passing through it from bottom to top at intervals. Each end of the longitudinal rod is connected to a rotatable yarn guide.

2. The guide frame for the fine sand uniformity testing device according to claim 1, characterized in that, The base has several casters installed at intervals on its bottom surface, and the casters on the front side are equipped with a braking structure.

3. The guide wire frame for the fine sand uniformity testing device according to claim 1 or 2, characterized in that, The lower end of the yarn tube mounting bracket is fixed to the side of the base, and the upper ends of the two yarn tube mounting brackets extend upward and are connected to the upper end of the guide bracket via the fixing bracket to form a whole.

4. The guide frame for the fine sand uniformity testing device according to claim 1, characterized in that, The yarn tube insert rod is installed obliquely on the yarn tube mounting frame in the horizontal direction, and the angle between it and the horizontal plane is 5°~10°.

5. The guide frame for the fine sand uniformity testing device according to claim 1, 2 or 4, characterized in that, The rubber sleeve is cylindrical and rotatably connected to the yarn tube insertion rod via a bearing. The front end of the rubber sleeve has a rounded corner, and the rear end face of the rubber sleeve is close to the front side of the yarn tube mounting frame.

6. The guide frame for the fine sand uniformity testing device according to claim 1, characterized in that, The number of yarn tube insert rods is twice that of the longitudinal rods. Two yarn tube insert rods at the same height correspond to one longitudinal rod, and the longitudinal rod is higher than the yarn tube insert rod in the vertical direction.

7. The guide wire frame for the fine sand uniformity testing device according to claim 1, 2, 4 or 6, characterized in that, The yarn guide has a guide hole arranged laterally, and a sleeve portion for fitting onto the end of the longitudinal rod on one side of the yarn guide. The inner wall of the sleeve portion is provided with a rubber layer that provides rotational damping between the yarn guide and the longitudinal rod.

8. The guide frame for the fine sand uniformity testing device according to claim 7, characterized in that, The two ends of the guide wire hole are fitted with wire-passing ceramic eyes.

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