An auxiliary sampling device for cotton fibers

Abstract

The utility model relates to a kind of cotton fiber auxiliary sampling device, belong to fiber sampling detection equipment technical field.It includes handle and rotating sampling head and sampling rod, sampling head is threadedly connected in the lower end of handle, and it is matched with cotton bale, loose cotton or semi-finished cotton;Sampling rod is rotatably installed on handle, it is set through rotating sampling head, and sampling head is arranged in the lower end of sampling rod.This device is pre-pressed to cotton by the pressing plate of rotating sampling head lower end, limits the free movement of fiber in the collection process, avoids the physical damage caused by pulling or shearing.Sampling head adopts the structure with threaded screwing head, when rotating and screwing into cotton interior, it gently hooks fiber in the way of spiral propulsion, rather than forcibly scraping or clamping, effectively maintains the integrity of fiber original length and strength;Solved the existing existing sampling process due to artificial operation or simple tool causes fiber damage, sample arrangement disorder and sampling quantity inconsistency etc.

Description

Technical Field

[0001] This utility model relates to the technical field of fiber sampling and testing equipment, and in particular to an auxiliary sampling device for cotton fibers. Background Technology

[0002] Quality testing of cotton fibers is an important part of the textile industry and cotton trade. Before testing indicators such as length, strength, and fineness, representative fiber samples need to be collected from cotton bales, loose cotton, or semi-finished products.

[0003] Currently, cotton fiber sampling primarily involves manual grasping or using simple clamping or scraping samplers. These methods have certain limitations in practical applications: during sampling, fibers are easily subjected to pulling, shearing, or breaking, affecting the integrity of their original physical state; simultaneously, the fiber arrangement and sample volume are significantly influenced by the operator's technique, making it difficult to effectively guarantee consistency between samples; furthermore, the collected fibers are usually in a scattered clump, lacking orderly arrangement, requiring additional manual combing or alignment before they can be used with subsequent testing equipment. This increases the sample pretreatment steps, affecting the overall continuity and efficiency of the testing process.

[0004] Based on this, the present invention proposes a cotton fiber auxiliary sampling device, which can effectively avoid fiber damage during cotton fiber collection, while achieving preliminary fiber alignment, thereby improving sampling efficiency and sample quality, and solving the problems existing in the prior art. Utility Model Content

[0005] To address the problems of fiber damage, disordered sample arrangement, and inconsistent sampling volume caused by manual operation or simple tools in existing sampling processes, this utility model provides a cotton fiber auxiliary sampling device.

[0006] The present invention adopts the following technical solution: A cotton fiber auxiliary sampling device includes a handle, a rotary sampling head and a sampling rod rotatably mounted on the handle, wherein the sampling head is threadedly connected to the lower end of the handle and is compatible with cotton bales, loose cotton or semi-finished cotton; the sampling rod is rotatably mounted on the handle, passes through the rotary sampling head, and has a sampling head at the lower end of the sampling rod.

[0007] In a preferred embodiment, a sleeve is also installed below the handle, the sleeve is fixedly connected to the spiral component, and the spiral component is threadedly connected to the rotating sampling head.

[0008] In a preferred embodiment, the parts are threaded together.

[0009] In a preferred embodiment, the inner side of the lower end of the rotary sampling head is further provided with a clearance opening that communicates with the central threaded hole. The clearance opening is a trapezoidal groove with a large opening and a small inner side.

[0010] In a preferred embodiment, a chamfer is provided on the lower end face edge of the relief opening.

[0011] In a preferred embodiment, a pressure plate is further provided on the outer side of the lower end of the rotating sampling head, and the diameter of the pressure plate is larger than the diameter of the rotating sampling head.

[0012] In a preferred embodiment, the sleeve is a hollow sleeve installed at the lower end of the handle, and a cotton fiber sampling channel with the same diameter as the small end of the relief opening is formed inside the sleeve.

[0013] In a preferred embodiment, the cotton fiber sampling channel is a cylindrical channel with a uniform diameter.

[0014] In a preferred embodiment, a threaded connection is provided on the inner side of the upper end of the cotton fiber sampling channel, and the threaded connection is threadedly connected to the outer side of the sampling rod.

[0015] In a preferred embodiment, the sampling head is detachably mounted on the lower end of the sampling rod, and a threaded entry head is provided at the lower part of the sampling head. The threaded entry head is conical and has several protrusions on its outer surface.

[0016] Compared with the prior art, this utility model provides a cotton fiber auxiliary sampling device, which has the following beneficial effects: 1. This device pre-compresses the cotton by rotating the pressure plate at the lower end of the sampling head, which restricts the free movement of the fibers during the collection process and avoids physical damage caused by pulling or shearing. 2. The sampling head adopts a structure with a threaded screw-in head. When it rotates into the cotton, it gently hooks the fiber in a spiral manner, rather than forcibly scraping or breaking it, effectively maintaining the integrity of the original length and strength of the fiber. 3. The collected fibers enter the cotton fiber sampling channel through the clearance port. The channel is a straight, smooth cylindrical cavity. The low friction characteristics of its inner wall and the geometric constraints work together to allow the random fibers to naturally extend along the axial direction and initially arrange themselves in parallel as they pass through the channel. 4. The threaded fit between the sampling rod and the sleeve rod allows the operator to precisely control the stroke of the sampling head by rotation, thereby obtaining fiber samples with consistent volume and significantly improving the repeatability and representativeness between samples; 5. The distance between the pressure plate and the sampling head can be adjusted by rotating the sampling head to adapt to different sampling objects such as cotton bales, loose cotton or semi-finished products, thus enhancing the applicability of the device. The overall structure does not require an external power source and relies on pure mechanical transmission to complete sampling and alignment. It is easy to operate and highly reliable, which greatly reduces the subsequent manual pre-processing steps and improves the overall efficiency of the testing process.

[0017] It solves the problems of fiber damage, disordered sample arrangement, and inconsistent sampling volume caused by manual operation or simple tools in the existing sampling process. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of 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 some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of the cotton fiber auxiliary sampling device of this utility model; Figure 2 This is a schematic diagram of the handle, screw, and sleeve of this utility model; Figure 3 This is a schematic diagram of the structure of the rotating sampling head of this utility model; Figure 4 This is a cross-sectional view of the rotating sampling head of this utility model; Figure 5 This is a schematic diagram of the sampling rod and sleeve of this utility model; Figure 6 This is a schematic diagram of the sampling head of this utility model.

[0020] [Explanation of Key Component Symbols] 1. Handle; 2. Sampling head; 21. Threaded hole; 22. Clearance opening; 23. Pressure plate; 3. Spiral component; 4. Sleeve rod; 41. Cotton fiber sampling channel; 42. Threaded connection part; 5. Knob; 6. Sampling rod; 7. Sampling head; 71. Threaded screw head. Detailed Implementation

[0021] The structure of this cotton fiber auxiliary sampling device will be further described in detail below with reference to the accompanying drawings and embodiments of this utility model.

[0022] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0023] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments as described in this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0024] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0025] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0026] The following is combined with Figures 1 to 6 The structure of the cotton fiber auxiliary sampling device of this utility model is described.

[0027] A cotton fiber auxiliary sampling device includes a handle 1, a rotary sampling head 2 and a sampling rod 6 rotatably mounted on the handle 1. The rotary sampling head 2 is threadedly connected to the lower end of the handle 1 and is used in conjunction with cotton bales, loose cotton, or semi-finished cotton products. The sampling rod 6 is rotatably mounted on the handle 1, passes through the rotary sampling head 2, and has a sampling head 7 at its lower end. During use, the sampling head 7 is inserted into the cotton bales, loose cotton, or semi-finished cotton products to sample cotton fibers.

[0028] In one specific implementation, such as Figure 1 and Figure 2 As shown, a sleeve rod 4 is also installed below the handle 1. The sleeve rod 4 is fixedly connected to the spiral component 3, and the spiral component 3 is threadedly connected to the rotating sampling head 2, so that the relative position relationship between the handle 1 and the rotating sampling head 2 can be adjusted by rotating the handle 1 during use, so as to sample the cotton fibers.

[0029] Specifically, the handle 1 is the gripping component of the entire device, and its external shape and size facilitate comfortable gripping and force application by the operator. Furthermore, for ease of carrying and use, the handle 1 is typically made of lightweight, high-strength plastic, metal, or composite materials.

[0030] In one specific implementation, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the rotary sampling head 2 is threadedly connected to the threaded groove on the outer surface of the spiral component 3 through a central threaded hole 21 provided inside it, so that the relative positional relationship between the rotary sampling head 2 and the spiral component 3 can be adjusted by rotating the rotary sampling head 2 during use.

[0031] Specifically, a clearance port 22 connected to the central threaded hole 21 is provided on the inner side of the lower end of the rotary sampling head 2. The clearance port 22 is a trapezoidal groove with a large opening and a small inner side, and a chamfer is provided on the lower end edge of the clearance port 22 to guide the cotton fibers smoothly into the channel and avoid the fibers from bending, getting stuck or breaking at the entrance due to the sharp edge.

[0032] Specifically, a pressure plate 23 is provided on the outer side of the lower end of the rotary sampling head 2. The diameter of the pressure plate 23 is larger than that of the rotary sampling head 2, and it is used in conjunction with loose cotton or semi-finished cotton to compress and limit the cotton before or during fiber sampling.

[0033] In one specific implementation, such as Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the sleeve rod 4 is a hollow sleeve fixedly installed at the lower end of the handle 1, and a cotton fiber sampling channel 41 with the same diameter as the small end of the relief port 22 is formed in the sleeve rod 4. The cotton fiber sampling channel 41 is a cylindrical channel with a uniform diameter, so that cotton fibers can be guided out through the cotton fiber sampling channel 41 during use.

[0034] Specifically, the inner wall of the cotton fiber sampling channel 41 is highly polished or coated with a low-friction coefficient coating to minimize the resistance when the fiber moves within it. Since the cotton fiber sampling channel 41 is a straight, smooth cylindrical structure, when the cotton fiber is introduced into it, its own physical properties and the limiting effect of the channel wall will cause the fiber to automatically and initially align parallel along the channel axis.

[0035] Specifically, a threaded connection part 42 is provided on the inner side of the upper end of the cotton fiber sampling channel 41. The threaded connection part 42 is threadedly connected to the outer side of the sampling rod 6 so that the position of the sampling rod 6 in the sleeve 4 can be adjusted by rotating the sampling rod 6 during use to achieve sampling of cotton fibers.

[0036] In one specific implementation, such as Figure 2 , Figure 5 and Figure 6 As shown, the sampling head 7 is detachably mounted on the lower end of the sampling rod 6. The lower part of the sampling head 7 is provided with a threaded screw-in head 71, which is conical and has several protrusions machined on its outer surface. When the sampling head 7 rotates clockwise, the threaded screw-in head 71 screws into the cotton, and the spiral protrusions hook the cotton fibers; when it rotates counterclockwise, the spiral protrusions disengage from the fibers, thus releasing the fibers.

[0037] The process of using the cotton fiber auxiliary sampling device described in this utility model includes: In actual sampling operations, the sampling head 2 is first rotated according to the shape of the cotton to be sampled (such as the compaction of the cotton bales and the looseness of the loose cotton) to adjust the initial distance between the pressure plate 23 and the sampling head 7. For example, for high-density cotton bales, the sampling head 2 can be rotated deeper to bring the pressure plate 23 closer to the sampling head 7; for loose cotton, the distance should be increased appropriately to avoid excessive compression. After adjustment, the device is placed vertically on the cotton surface, the pressure plate 23 contacts the cotton and applies pre-pressure to restrict its lateral movement.

[0038] Subsequently, the operator manually rotates knob 5, causing sampling rod 6 to rotate clockwise. Since sampling rod 6 and sleeve rod 4 are threaded together via internal threaded connection part 42, sampling rod 6 advances downwards while rotating, causing the threaded insertion head 71 of sampling head 7 to screw into the cotton. During the screwing process, the spiral protrusion hooks around surrounding cotton fibers, which are gradually drawn in and gather around the threaded insertion head 71. As sampling head 7 continues to move downwards, the hooked fiber bundles enter the cotton fiber sampling channel 41 through the trapezoidal groove-shaped clearance opening 22.

[0039] Because the cotton fiber sampling channel 41 is a smooth, straight cylindrical channel, the fibers are subject to geometric constraints on the inner wall of the channel and the effect of a low-friction coefficient coating or mirror-polished surface as they pass through. The disordered fibers naturally extend and initially align in parallel along the channel axis. When the sampling head 7 reaches the predetermined depth, the knob 5 is rotated in the opposite direction, and the sampling rod 6 drives the sampling head 7 to retract upwards, ensuring that the fiber bundle is completely extracted.

[0040] After removing the device, the operator can take out the pre-oriented fiber sample from the upper port of the cotton fiber sampling channel 41 for direct use in subsequent testing, without the need for additional combing or sorting. The entire sampling process is completed by a purely mechanical structure, without the need for an external power source. The operation steps are simple, highly repeatable, and effectively avoid the tearing, flattening, or twisting damage to the fibers caused by traditional scraping, shearing, or clamping methods.

[0041] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the scope of protection of the present utility model.

Claims

1. A cotton fiber auxiliary sampling device, characterized in that: It includes a handle (1) and a rotary sampling head (2) and a sampling rod (6) rotatably mounted on the handle (1). The sampling head (2) is threaded to the lower end of the handle (1) and is compatible with cotton bales, loose cotton or semi-finished cotton. The sampling rod (6) is rotatably mounted on the handle (1), passes through the rotary sampling head (2), and a sampling head (7) is provided at the lower end of the sampling rod (6).

2. The cotton fiber auxiliary sampling device as described in claim 1, characterized in that: A sleeve (4) is also installed below the handle (1). The sleeve (4) is fixedly connected to the spiral component (3), and the spiral component (3) is threadedly connected to the rotating sampling head (2).

3. The cotton fiber auxiliary sampling device as described in claim 2, characterized in that: The rotating sampling head (2) is threadedly connected to the spiral (3) through a central threaded hole (21) located inside it.

4. The cotton fiber auxiliary sampling device as described in claim 3, characterized in that: The inner side of the lower end of the rotating sampling head (2) is also provided with a relief opening (22) that is connected to the central threaded hole (21). The relief opening (22) is a trapezoidal groove with a large opening and a small inner side.

5. The cotton fiber auxiliary sampling device as described in claim 4, characterized in that: A chamfer is provided on the lower end face edge of the relief opening (22).

6. The cotton fiber auxiliary sampling device as described in claim 1, characterized in that: A pressure plate (23) is also provided on the outer side of the lower end of the rotating sampling head (2), and the diameter of the pressure plate (23) is larger than the diameter of the rotating sampling head (2).

7. The cotton fiber auxiliary sampling device as described in claim 4, characterized in that: The sleeve (4) is a hollow sleeve installed at the lower end of the handle (1), and a cotton fiber sampling channel (41) with the same diameter as the small end of the relief port (22) is formed in the sleeve (4).

8. The cotton fiber auxiliary sampling device as described in claim 7, characterized in that: The cotton fiber sampling channel (41) is a cylindrical channel with a uniform diameter.

9. The cotton fiber auxiliary sampling device as described in claim 7, characterized in that: The upper inner side of the cotton fiber sampling channel (41) is provided with a threaded connection part (42), which is threadedly connected to the outer side of the sampling rod (6).

10. The cotton fiber auxiliary sampling device as described in claim 1, characterized in that: The sampling head (7) is detachably installed at the lower end of the sampling rod (6), and a threaded screw head (71) is provided at the lower part of the sampling head (7). The threaded screw head (71) is conical and has several protrusions on its outer surface.

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