Cotton quality inspection sample sampler

Abstract

The utility model relates to the technical field of sampling devices, in particular to a cotton quality inspection sample sampler which comprises an upper clamping arm and a lower clamping arm which are rotatably connected, one side of the upper clamping arm is fixedly connected with an arc-shaped plate, and a plurality of grasping nails are vertically and fixedly arranged on the arc-shaped plate; a vertical baffle is fixedly connected to one side of the lower clamping arm, round straight long nails are arranged on the vertical baffle side by side, and colored paint is sprayed to one section of each round straight long nail; the technical problem that labor is wasted when an existing sampling device is used for picking cotton bricks can be solved.

Description

Technical Field

[0001] This utility model relates to the field of sampling device technology, specifically a cotton quality inspection sampler. Background Technology

[0002] Cotton is an important economic crop in my country. Quality inspection of cotton is a crucial step in the cotton production process, playing a vital role in ensuring cotton output quality and guiding cotton production techniques. According to the "Procedures for Notarized Inspection of Cotton Quality under Regulatory Authority" issued by the China Fiber Quality Monitoring Center, samples used for quality inspection should be taken from one side of the compressed cotton bale, forming a single rectangular sample measuring 260mm in length and 124mm in width, with a weight controlled between 125g and 150g. Multiple small, repeated sampling to form a single sample is prohibited, as fragmented samples can affect quality inspection. According to the quality inspection method standard GB 1103.1-2023 "Cotton Part 1: Saw-Ginned Fine Lint Cotton," samples should be taken from the middle of the two compressed sides of each compressed cotton bale. The surface cotton layer should be removed, and then a complete, flat, rectangular sample measuring 260mm in length and 124mm in width, weighing no less than 125g, should be taken.

[0003] like Figure 1 As shown, the compressed cotton bale 11 is a rectangular structure and is tied at equal intervals with several cable ties 15. The compressed cotton bale is made by the relevant production unit. In order to facilitate subsequent quality inspection, a rectangular quality inspection sample (commonly known as "cotton brick 5") will be uniformly cut on at least one end face of the compressed cotton bale 11. The outer periphery of the cotton brick 5 is the cut slit 12 formed by the cutting (that is, the gap between the outer surface of the cotton brick 5 and the inner wall of the compressed cotton bale 11). In the sampling process of removing cotton bricks 5 from compressed cotton bales 11, staff members are accustomed to reaching into the cut 12 of the compressed cotton bale 11 with their bare hands to remove the thick "cotton bricks 5" and put them into a plastic bag. This is very easy to injure the hands and is also very strenuous. The reason is that the cotton is compressed and packed very tightly. When staff members wear gloves, it is difficult to reach into the cut 12. At the same time, even if they do manage to insert their hands into the cut 12, their fingers are easily chafed and injured due to repeated friction between the compressed cotton. In addition, the sampling environment is often a harsh environment with strong winds, dry weather, and extremely low temperatures, which can easily cause skin cracking, numbness, and other problems, thus limiting the hand function of the staff.

[0004] The prior art proposes a cotton sampling auxiliary device (publication number: CN208505644U), which can use a spiked extension rod to pierce into the cut to extract cotton bricks. However, the problem with the prior art is that the cotton bricks will still deform to a certain extent after being squeezed. Relying solely on a straight extension rod to clamp the cotton bricks is not stable enough when grasping them, and the sampling process is very laborious. Utility Model Content

[0005] This invention provides a cotton quality inspection sampler that can solve the technical problem of laborious cotton picking when using existing sampling devices.

[0006] This application provides the following technical solution:

[0007] A cotton quality inspection sampler includes an upper clamping arm and a lower clamping arm that are rotatably connected. An arc-shaped plate is fixedly connected to one side of the upper clamping arm, and several gripping nails are vertically fixedly arranged on the arc-shaped plate. A vertical baffle is fixedly connected to one side of the lower clamping arm, and round straight long nails are arranged side by side on the vertical baffle. One section of the round straight long nails is sprayed with colored paint.

[0008] Beneficial effects:

[0009] 1. Significantly Reduces the Risk of Hand Injury for Workers: This cotton quality inspection sampler features a vertical baffle fixedly connected to one side of the lower clamping arm, on which are arranged parallel rows of sharp, round, straight spikes. The design of these spikes allows for easy insertion into the cuts of compressed cotton bales. Especially during the initial insertion phase, the spikes effectively reduce resistance, ensuring smooth insertion. As the spikes penetrate deeper, although resistance gradually increases, the presence of spikes maintains good insertion performance. This design significantly reduces the risk of hand injury for workers and improves the convenience and efficiency of sampling.

[0010] 2. The curved plate combined with gripping pins enhances gripping stability: A curved plate is fixedly connected to one side of the upper clamping arm, and several gripping pins are vertically fixed on the curved plate. When the upper and lower clamping arms are closed, the gripping pins on the curved plate work together with the long, round pins to ensure a firm grip on the cotton block. The design of the gripping pins and the curved plate not only increases the contact area but also provides additional friction, preventing the cotton block from slipping or deforming during gripping. Especially for cotton blocks that still have some deformation after being squeezed, this structure significantly improves the stability and reliability of gripping, avoiding the instability problems that may occur when using only a straight extension rod for gripping in existing technologies. In this way, the sampling process is more labor-saving and efficient.

[0011] 3. A section of the round, straight nail is painted with a colored paint to guide the user's operation and ensure sampling quality: This design helps operators accurately judge the insertion depth and direction of the nail during operation. Specifically, when the nail is inserted into the cut and reaches a certain depth, if the part painted red is seen entering the cut, it indicates that the nail is nearing the end of the cut. At this point, the direction of the nail needs to be adjusted to return it to a horizontal position. This color marking provides a visual guide, ensuring that each nail is correctly inserted to the specified depth, thereby guaranteeing that the sample weight meets the requirements (not less than 125g). It helps operators avoid insufficient sampling due to premature adjustment of the insertion direction, further improving sampling quality and consistency.

[0012] 4. The vertical baffle improves ease of operation: The vertical baffle, fixedly connected to one side of the lower clamping arm, provides a stable support point for inserting the round, straight, long nail. Operators can easily adjust the direction of the nail by pressing the radial side of their index finger against the side of the baffle, making operation more effortless and convenient. This design avoids direct contact between fingers and the compressed cotton pack during manual operation, reducing the risk of hand injury, while also improving the accuracy and stability of the operation, making it simple and labor-saving.

[0013] Furthermore, as an improvement, one section of the round straight nail is configured as an annular groove, and colored paint is sprayed onto the annular groove.

[0014] Beneficial effects: The addition of annular grooves makes the color markings more prominent and easier to identify. Compared to simple surface spraying, the annular grooves increase the three-dimensionality of the color markings, allowing operators to more intuitively observe changes in insertion depth during operation. Especially in low-light or complex environments, this design significantly improves visual recognition, ensuring operators accurately judge whether the round, straight spike is close to the end of the cut. The annular groove design not only provides visual markings but also enhances the structural strength of the round, straight spike to a certain extent. Compared to simple surface spraying, the paint within the annular grooves is less prone to peeling or wear, maintaining clear color markings even under frequent use and high friction, extending the tool's lifespan and reliability.

[0015] Furthermore, as an improvement, the overall length of the round straight nail is equal to the width of the sample.

[0016] Beneficial effect: Setting the overall length of the round, straight nails to be equal to the width of the sample (cotton brick) ensures that each nail reaches the same depth when inserted into the cut. This avoids uneven sampling caused by inconsistent insertion depths of different nails.

[0017] Furthermore, as an improvement, an upper handle and a lower handle are fixedly provided on one side of both the upper and lower clamping arms, and both the upper and lower handles are ring handles.

[0018] Beneficial effects: The design of the ring handle is more ergonomic, better conforming to the natural curve of the palm and providing a more comfortable grip experience. The ring handle provides a larger contact area and better grip force, enabling operators to more stably control the opening and closing of the upper and lower clamping arms during operation. Stable grip helps improve the accuracy and stability of operation.

[0019] Furthermore, as an improvement, a support rod is rotatably mounted on the upper handle, and the support rod is detachably and fixedly connected to the lower handle.

[0020] Beneficial Effects: During the insertion of a round, straight spike into the cut of a compressed cotton bale, the upper and lower clamping arms typically need to be kept open to facilitate insertion. By incorporating a support rod to maintain this open position, workers no longer need to grip the handle tightly, significantly reducing hand strain. This design effectively prevents hand fatigue and improves work efficiency, especially during prolonged operation or frequent sampling. When the upper and lower handles are fully open and secured by the support rod, the entire sampler is in a stable position. This stability helps ensure that the round, straight spike does not deviate from its intended path due to hand tremors or accidental loosening during insertion, thus improving insertion accuracy and success rate.

[0021] Furthermore, as an improvement, the entire assembly is made of stainless steel, with flexible sleeves covering the upper and lower handles.

[0022] Beneficial effects: Stainless steel possesses excellent corrosion resistance and rust resistance. Cotton production facilities are often located in environments with strong winds, dry weather, and extremely low temperatures. Ordinary metal materials are prone to rusting or corrosion, while using stainless steel effectively prevents these problems. Workers do not need to frequently perform rust prevention treatments on tools or replace damaged parts, thus reducing maintenance costs and time investment. The flexible sleeve covers prevent direct contact between the user's hands and the stainless steel surface, thus avoiding injury. Attached Figure Description

[0023] Figure 1 A schematic diagram of the structure of the compressed cotton bale 11 and cotton brick 5 to be sampled;

[0024] Figure 2 This is an isometric view of a first embodiment of a cotton quality inspection sampler of this utility model;

[0025] Figure 3This is a front view of the support rod 13 part of Embodiment 2 of the cotton quality inspection sampler of this utility model. Detailed Implementation

[0026] The following detailed description illustrates the specific implementation method:

[0027] The markings in the accompanying drawings of the instruction manual include: upper clamping arm 1, lower clamping arm 2, arc plate 3, gripping nail 4, cotton block 5, upper handle 6, vertical baffle 7, round straight long nail 8, annular groove 9, lower handle 10, compressed cotton bale 11, slit 12, support rod 13, support base 14, cable tie 15.

[0028] Example 1

[0029] Combination Figures 1-2 As shown, a cotton quality inspection sampler is made entirely of stainless steel and includes an upper clamping arm 1 and a lower clamping arm 2 hinged together by bolts and nuts. An arc-shaped plate 3 is welded and fixed on the right side of the upper clamping arm 1, and several gripping nails 4 are vertically fixed on the arc-shaped plate 3. The gripping nails 4 are triangular prisms, with one edge of the gripping nail 4 facing upwards so as to penetrate into the cotton block 5 to enhance the fixing effect; an annular upper handle 6 is integrally formed on the left side of the upper clamping arm 1. A vertical baffle 7 is welded and fixed to the right side of the lower clamping arm 2. The height of the vertical baffle 7 is 80mm (matching the height of the cotton brick 5). Five round straight long nails 8 are welded and fixed side by side on the vertical baffle 7. The round straight long nails 8 are 124mm long (matching the width of the cotton brick 5). The right end of the round straight long nails 8 is a spiked insertion end. An annular groove 9 with a depth of 0.1mm is set on the round straight long nails 8 in an area between 80-100mm from the insertion end towards the vertical baffle 7. The annular groove 9 is sprayed with eye-catching red paint. A ring-shaped lower handle 10 is integrally formed on the left side of the lower clamping arm 2. The upper handle 6 and the lower handle 10 are covered with a flexible sleeve of PP+TPR material to avoid direct contact between the user's hands and the stainless steel surface, which may cause cuts. At the same time, the flexible sleeve of this material has excellent anti-slip and wear resistance, and is more durable.

[0030] The specific application process is as follows:

[0031] During use, the operator holds the upper handle 6 and the lower handle 10 with their right hand in a thumb-and-shoulder position, fully opening the upper clamping arm 1 and the lower clamping arm 2. Then, the round, straight, long nail 8 on the lower clamping arm 2 is removed from the pre-processed compression cotton bag 11. Figure 1Insert the needle into the marked slit 12. Slit 12 is a vertical rectangle, located at the bottom edge and both sides of the cotton block 5. The horizontal bottom edge of the cotton block 5 is still connected to the compressed cotton bale 11. Because the insertion end of the round, straight, long nail 8 has a spike, insertion is initially smooth. As the nail 8 penetrates deeper, the resistance increases. When the worker feels resistance, they should closely monitor whether the area painted red on the nail 8 has entered the slit 12. If not, it needs to be inserted further. If it has, it means the spiked end of the nail 8 is close to the end of the slit 12. At this point, the insertion direction of the nail 8 needs to be changed from vertical to left or right to continue deeper insertion. Note that the radial side of the index finger should be used to brace against the side of the vertical baffle 7, using this position as a fulcrum to assist in deeper insertion. When the round, straight nail is horizontal, clamp the upper handle 6 and the lower handle 10 firmly. This will cause the upper clamping arm 1 to snap down and, together with the lower clamping arm 2, clamp the cotton brick 5. Using the lower part of the upper clamping arm 1 as a fulcrum, leverage the lever principle to flip the cotton brick 5 from the inside out until it reaches the bottom (260mm). At this point, only the bottom of the cotton brick 5 remains connected to the compressed cotton bag 11. Then, using the upper end of the upper clamping arm 1 as a fulcrum, again leverage the lever principle to lift the cotton brick 5 from bottom to top (you can also use your left hand to hold the front end of the upper clamping arm 1 and lift upwards with the cooperation of both hands) until the cotton brick 5 is completely detached from the compressed cotton bag 11 to complete the sampling. It is worth noting that if the insertion direction of the round, straight nail 8 is changed before reaching the red area, the sample weight may be less than 125g, which does not meet the sampling requirements.

[0032] Example 2

[0033] Compared with Example 1, this embodiment is as follows: Figure 3 As shown, the difference lies in the fact that a support rod 13 is rotatably mounted on the upper handle 6, and the support rod 13 is detachably and fixedly connected to the lower handle 10. Specifically, the support rod 13 is a straight rod, one end of which is hinged to the tail end of the upper handle 6, and a support seat 14 with a groove as an insertion port is fixedly mounted on the side of the lower handle 10, and the other end of the support rod 13 can be inserted and fixed to the support seat 14.

[0034] When using, combine Figures 1-3 As shown, during the process of inserting the round, straight long nail 8 into the cut 12 of the compressed cotton bag 11, it is usually necessary to keep the upper clamping arm 1 and the lower clamping arm 2 in an open state to facilitate the insertion of the round, straight long nail 8. By setting a support rod 13 to help maintain the open state, the operator does not need to continuously pull the handle tightly, thus greatly reducing the burden on the hands. When it is not necessary to maintain the open state, the support rod 13 can be planed to one side.

[0035] The above are merely embodiments of this utility model, and the utility model is not limited to the field covered by this embodiment. Commonly known structures and characteristics in the solutions are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of this utility model, and these should also be considered within the scope of protection of this utility model. These modifications will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A cotton quality inspection sample sampler comprising a pivotally connected upper clamp arm and a lower clamp arm, characterised in that: The arc-shaped plate is fixedly connected to one side of the upper clamping arm, and a plurality of grabbing nails are vertically fixed on the arc-shaped plate; the vertical baffle is fixedly connected to one side of the lower clamping arm, and the round straight nails are arranged side by side on the vertical baffle, and one section of the round straight nails is sprayed with colored paint.

2. A cotton quality inspection sample sampler according to claim 1, characterised in that: One section of the round straight nails is arranged as a ring-shaped groove, and the ring-shaped groove is sprayed with colored paint.

3. A cotton quality inspection sample sampler according to claim 2, wherein: The overall length of the round straight nails is equal to the width of the sample.

4. A cotton quality inspection sample sampler according to claim 3, wherein: Upper handles and lower handles are fixedly arranged on one side of the upper clamping arm and the lower clamping arm, and the upper handles and the lower handles are annular handles.

5. A cotton quality inspection sample sampler according to claim 4, wherein: A supporting rod is rotatably arranged on the upper handle, and the supporting rod is detachably fixedly connected with the lower handle.

6. A cotton quality inspection sample sampler according to claim 4, wherein: The whole is made of stainless steel, and the upper handle and the lower handle are covered with a flexible sleeve.

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