Tow sampler for analyzing residual solvent of tows

Abstract

The utility model discloses a tow sampler for tow residual solvent analysis, which comprises a grip, a friction roller, an abutting frame, a driven rotating shaft, a driven wheel and a sampling wheel, the front end of the grip is provided with a friction wheel groove, the friction wheel groove is internally provided with a rotatable friction roller, the front end of the abutting frame is provided with a driven wheel groove, and the driven wheel groove is internally provided with a driven rotating shaft. The driven rotating shaft rotatably penetrates through the driven wheel groove in the abutting frame, the driven wheel penetrates through the driven rotating shaft and is located in the driven wheel groove of the abutting frame, the sampling wheel detachably penetrates through the driven rotating shaft and is located on one side of the abutting frame, the front end of the grip is connected with the abutting frame, and the friction roller makes contact with the driven wheel. According to the utility model, the friction roller on the grip is contacted with the wire feeding roller at the end of a monofilament drying process, and the wire feeding roller drives the friction roller to rotate so as to drive the driven wheel to rotate, so that the linear speed of the sampling wheel is the same as that of the wire feeding roller, tows are wound on the sampling wheel, and the sampling device has the advantages of accurate sampling and high sampling efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of fiber tow sampling equipment, in particular to a fiber tow sampler for analyzing residual solvent in a fiber tow. Background Technique

[0002] In the process of preparing fiber filaments, the role of the solvent is very important. For example, the hot air temperature and air supply volume in the aisle can determine the quality of the nascent fiber. On the contrary, in the process of drying single filaments, acetone and water need to be dried to a certain range. Because if acetone and water cannot volatilize, the residual solvent is relatively high and the single filaments are easy to break; if acetone and water volatilize more and the residual solvent is relatively low, the single filaments are too dry, which is easy to increase the friction and cause the generation of flying fibers, which is not conducive to subsequent spinning and ultimately affects the quality of the finished product.

[0003] Therefore, it is necessary to sample the fiber tow at the end of the single filament drying process to analyze the residual amount of the solvent. When sampling the existing fiber tow, on the one hand, the extraction is completely dependent on the manual operation of the staff, which is time-consuming and laborious, and there will be cross-contamination of multiple samples extracted, resulting in inaccurate results; more importantly, the sampled fiber tow is completely exposed, and insufficient sealing will lead to the inaccuracy of subsequent test results. For this reason, a sampling device is needed to solve the above problems. Content of the Utility Model

[0004] In view of the deficiencies of the prior art, the utility model provides a fiber tow sampler for analyzing residual solvent in a fiber tow, which has the advantages of strong practicability, good stability and high extraction efficiency, and solves the problems put forward in the above background technique.

[0005] The utility model provides the following technical solutions:

[0006] A fiber tow sampler for analyzing residual solvent in a fiber tow includes a handle, a friction roller, a supporting frame, a driven rotating shaft, a driven wheel, a sampling wheel, a front cutting screw rod, a rear cutting screw rod and a wire cutting blade;

[0007] A friction wheel groove is opened at the front end of the handle, and a rotatable friction roller is arranged in the friction wheel groove;

[0008] A driven wheel groove is opened at the front end of the supporting frame, the driven rotating shaft passes through the driven wheel groove rotatably in the supporting frame, the driven wheel is sleeved on the driven rotating shaft and is located in the driven wheel groove of the supporting frame, and the sampling wheel is detachably sleeved on the driven rotating shaft and is located on one side of the supporting frame;

[0009] A front broken wire screw rod is foldably arranged on the grip, and a rear broken wire screw rod is foldably arranged on the abutment frame. The front broken wire screw rod and the rear broken wire screw rod are on the same side as the sampling wheel. The front broken wire screw rod and the rear broken wire screw rod are the same. A broken wire cutter slot is arranged at the front ends of the front broken wire screw rod and the rear broken wire screw rod. The broken wire cutter blade can be replaceably clamped in the broken wire cutter slot. After the front broken wire screw rod and the rear broken wire screw rod are unfolded, the broken wire cutter blade on the front broken wire screw rod is exactly in front of the sampling wheel, and the broken wire cutter blade on the rear broken wire screw rod is exactly behind the sampling wheel. The broken wire cutter blade is perpendicular to the advancing direction of the tow.

[0010] The front end of the grip is connected to the abutment frame. The friction roller is in contact with the driven wheel, and the friction roller drives the driven wheel to rotate, so that the driven rotating shaft drives the sampling wheel to rotate.

[0011] Furthermore, the friction roller is sleeved on the roller shaft, and positioning discs are arranged on both sides of the friction roller. The positioning discs are sleeved on the roller shaft to prevent the friction roller from swaying left and right.

[0012] Furthermore, the surface of the friction roller is made of rubber material to increase the friction force.

[0013] Furthermore, grooves are arranged on the surface of the sampling wheel for winding and sampling of the tow.

[0014] Furthermore, the cross-section of the part where the driven rotating shaft passes through the sampling wheel is rectangular, and the hole of the sampling wheel is a rectangular hole. The two are matched, and can be quickly disassembled and assembled for easy replacement of the sampling wheel.

[0015] Furthermore, two bearings are sleeved on the driven rotating shaft. The bearings are located on both sides of the driven wheel, and the bearings are embedded in the abutment frame. The bearings reduce the friction force between the abutment frame and the driven rotating shaft and improve the flexibility of the driven wheel and the sampling wheel.

[0016] Furthermore, the driven wheel and the sampling wheel have the same diameter.

[0017] Furthermore, the broken wire cutter blade is a single-sided security blade.

[0018] Furthermore, a top rod is arranged on the abutment frame, so that when the sampler takes a sample, it abuts against the frame, and is relatively fixed with the position of the tow, which is convenient for stable sampling.

[0019] Furthermore, an anti-slip-off groove is opened at the top head of the top rod. The anti-slip-off groove is rectangular, so as to prevent slipping when the top rod abuts against the frame.

[0020] Compared with the prior art, the utility model has the following beneficial effects:

[0021] 1. For the tow sampler for analyzing residual solvent of tow of the utility model, through the contact between the friction roller and the driven wheel, the uniform winding and sampling of the tow are realized.

[0022] 2. For the tow sampler used for analyzing residual solvent of the present utility model, the design of the sampling wheel improves the accuracy of sampling; the rectangular fit design of the driven rotating shaft and the sampling wheel realizes quick disassembly and assembly, facilitating the replacement of the sampling wheel.

[0023] 3. For the tow sampler used for analyzing residual solvent of the present utility model, the setting of the bearing reduces the friction force and improves the flexibility of the driven wheel and the sampling wheel; the design of the ejector rod keeps the sampler stable during the sampling process. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a schematic three-dimensional structure diagram of the present utility model;

[0025] Figure 2 is a schematic structure diagram of the grip part of the present utility model;

[0026] Figure 3 is a schematic structure diagram of the abutment frame part of the present utility model;

[0027] Figure 4 is an exploded view of the abutment frame part of the present utility model.

[0028] In the figure: 1. Grip; 2. Protrusion; 3. Friction wheel groove; 4. Positioning disk; 5. Roller shaft; 6. Friction roller; 7. Ejector rod; 8. Anti-slip notch; 9. Abutment frame; 10. Through hole; 11. Bearing; 12. Driven rotating shaft; 13. Driven wheel; 14. Sampling wheel; 15. Front broken screw rod; 16. Rear broken screw rod; 17. Broken wire blade. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] The present application will be further described in detail below in conjunction with the drawings through specific embodiments. Similar elements in different embodiments are labeled with related similar element numbers. In the following embodiments, many detailed descriptions are provided to enable a better understanding of the present application. However, those skilled in the art can easily recognize that some of the features can be omitted in different situations, or can be replaced by other elements, materials, or methods. In some cases, some operations related to the present application are not shown or described in the specification to avoid the core part of the present application being overwhelmed by excessive descriptions. For those skilled in the art, it is not necessary to describe these related operations in detail, and they can fully understand the related operations based on the descriptions in the specification and the general technical knowledge in the art.

[0030] In addition, the features, operations or characteristics described in the specification can be combined in any appropriate manner to form various embodiments, and the operation steps involved in each embodiment can also be reordered or adjusted in a manner obvious to those skilled in the art. Therefore, the specification and drawings are only for clearly describing a certain embodiment and do not mean to be essential components and / or sequences.

[0031] The serial numbers assigned to the components in this document, such as "first", "second", etc., are only used to distinguish the objects described and do not have any sequential or technical meaning. And as used in this application, "connection" and "coupling", unless otherwise specified, both include direct and indirect connection (coupling).

[0032] Embodiment:

[0033] Please refer to Figures 1-4 , a tow sampler for analyzing residual solvent in tow, comprising a grip 1, a friction roller 6, a support frame 9, a driven rotating shaft 12, a driven wheel 13, a sampling wheel 14, a wire breaking rod and a wire breaking blade.

[0034] A friction wheel groove 3 is formed at the front end of the grip 1. A roller shaft 5 is arranged in the friction wheel groove 3. The friction roller 6 is sleeved on the roller shaft 5 and can rotate around the roller shaft 5. Positioning disks 4 are arranged on both sides of the friction roller 6. The positioning disks 4 are sleeved on the roller shaft 5 to prevent the friction roller 6 from swaying left and right during rotation, affecting the stability of sampling. The surface of the friction roller 6 is made of rubber material to increase the friction force. A protrusion 2 is arranged at the tail of the grip 1, so that the hand can better hold the grip during sampling.

[0035] A driven wheel groove is formed at the front end of the support frame 9. The driven rotating shaft 12 can rotate through a through hole 10 of the support frame 9 and pass through the driven wheel groove. Specifically, two bearings 11 are sleeved on the driven rotating shaft 12. The driven wheel 13 is sleeved on the driven rotating shaft 12 and is located in the driven wheel groove of the support frame 9. The bearings 11 are located on both sides of the driven wheel 13. The bearings 11 are embedded in the through hole 10 of the support frame 9. The bearings 11 reduce the friction force between the support frame 9 and the driven rotating shaft 12 and improve the flexibility of the driven wheel 13 and the sampling wheel 14.

[0036] The grip 1 is provided with a square hole on the side wall of the friction wheel groove 3. A square pin is inserted through the square hole, and a spring is inserted through the square pin. One end of the front breaking screw rod 15 is connected to the square pin in a hinged manner. The front breaking screw rod 15 is located outside the grip 1. The end of the front breaking screw rod 15 hinged to the square pin is at a right angle. Under the elastic action of the spring, the square pin can be bent at 90° or straightened at 180°, realizing the function of folding onto the grip 1. The other end of the front breaking screw rod 15 is provided with a cutting tool slot for the broken wire. An elastic card is arranged in the cutting tool slot for the broken wire to clamp the cutting blade 17 for the broken wire. The cutting blade 17 for the broken wire is a single-sided security blade. The single-sided security blade has high sharpness and low cost. The setting of the cutting tool slot for the broken wire facilitates the replacement of the cutting blade 17 for the broken wire.

[0037] The rear cutting rod 16 is arranged on the abutting frame 9 in the same way. The front cutting rod 15 and the rear cutting rod 16 are both on the same side as the sampling wheel 14.

[0038] After the front breaking screw rod 15 on the grip 1 and the rear breaking screw rod 16 on the abutting frame 9 are unfolded, they are located on both sides of the sampling wheel 14. The cutting blade 17 for the broken wire on the front breaking screw rod 15 and the cutting blade 17 for the broken wire on the rear breaking screw rod 16 are perpendicular to the advancing direction of the filament bundle.

[0039] The surface of the sampling wheel 14 is provided with grooves for winding and sampling the filament bundle. The driven wheel 13 has the same diameter as the sampling wheel 14. The sampling wheel 14 is detachably sleeved on the driven rotating shaft 12 and is located on one side of the abutting frame 9.

[0040] The front end of the grip 1 is connected to the abutting frame 9 through a connecting plate. The connecting plate is detachably fastened to the grip 1 and the abutting frame 9 with screws, realizing the detachable connection between the grip 1 and the abutting frame 9. The friction roller 6 contacts the driven wheel 13, and the friction roller 6 drives the driven wheel 13 to rotate, and then the driven rotating shaft 12 drives the sampling wheel 14 to rotate.

[0041] The abutting frame 9 is provided with a top rod 7, which abuts against the frame during sampling of the sampler, and is relatively fixed to the position of the filament bundle, facilitating stable sampling. The top head of the top rod 7 is provided with an anti-slip-off groove 8, and the anti-slip-off groove 8 is rectangular in shape, preventing slipping when the top rod 7 abuts against the frame.

[0042] A tow sampler for analyzing residual solvent in tows. When in use, expand the front breaking screw rod 15 on the grip 1 and the rear breaking screw rod 16 on the abutment frame 9, and clip the cutting blade 17 into the cutting blade slots of the front breaking screw rod 15 and the rear breaking screw rod 16. Then hold the grip 1 by hand, place the anti-slip notch 8 on the ejector rod 7 against the frame, and then press down the grip 1 to make the friction roller 6 contact the wire feeding roller, so that the wire feeding roller drives the friction roller 6 to rotate, thereby driving the driven wheel 13 to rotate. While the driven wheel 13 rotates, the driven rotating shaft 12 drives the sampling wheel 14 to rotate. Then use a tool to pick the tow onto the sampling wheel 14, and cut the tow with the cutting blade 17 in front of the sampling wheel 14. The tow will be wound around the sampling wheel 14 for sampling. After winding a certain number of turns, the cutting blade behind the sampling wheel cuts the tow to complete the sampling. Then, after replacing the sampling wheel 14, the next sampling can be carried out. The process of cutting the tow is as follows: Place the tow on the cutting blade 17, and then lift the sampler upward by hand, and the sharp cutting blade 17 can cut the tow, which is simple and convenient. When the cutting blade cannot cut the tow, a new cutting blade 17 needs to be replaced.

[0043] A tow sampler for analyzing residual solvent in tows. The friction roller 6 is in direct contact with the wire feeding roller, and its linear velocity is the same as that of the wire feeding wheel, so that the linear velocity of the driven wheel 13 is the same as that of the wire feeding roller. The diameter of the driven wheel 13 is the same as that of the sampling wheel 14, so the linear velocity of the sampling wheel 14 is basically the same as that of the wire feeding roller. In this way, during the sampling process, the tow will not be messed up, affecting the subsequent processes, and during the sampling process, it will not contact the hand, and the sampling process will not be contaminated.

[0044] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A tow sampler for residual solvent analysis of tow, characterized in that: It includes a handle, a friction roller, a support frame, a driven shaft, a driven wheel, a sampling wheel, a front wire breaking rod, a rear wire breaking rod and a wire breaking blade; A friction wheel groove is formed at the front end of the grip, and a rotatable friction roller is arranged in the friction wheel groove; A driven wheel groove is formed at the front end of the support frame, the driven shaft can rotate in the support frame and pass through the driven wheel groove, the driven wheel is inserted on the driven shaft and is located in the driven wheel groove of the support frame, and the sampling wheel is detachably inserted on the driven shaft and is located on one side of the support frame; A front wire-breaking rod is foldably provided on the grip, and a rear wire-breaking rod is foldably provided on the support frame. The front wire-breaking rod and the rear wire-breaking rod are both on the same side as the sampling wheel, and the front and rear wire-breaking rods are the same. A wire-breaking knife slot is provided at the front end of the front wire-breaking rod and the rear wire-breaking rod, and the wire-breaking blade is replaceably stuck in the wire-breaking knife slot; after the front wire-breaking rod and the rear wire-breaking rod are unfolded, the wire-breaking blade on the front wire-breaking rod is located in front of the sampling wheel, and the wire-breaking blade on the rear wire-breaking rod is located behind the sampling wheel, and the wire-breaking blade is perpendicular to the advancing direction of the wire bundle; The front end of the handle is connected to the support frame, and the friction roller is in contact with the driven wheel.

2. A tow sampler for residual solvent analysis in tow according to claim 1, characterized in that: The friction roller is passed through the roller shaft, and positioning plates are arranged on both sides of the friction roller. The positioning plates are passed through the roller shaft to prevent the friction roller from swinging left and right.

3. A tow sampler for residual solvent analysis of tow according to claim 2, characterized in that: The surface of the friction roller is made of rubber.

4. A tow sampler for residual solvent analysis in tow according to claim 1, characterized in that: The surface of the sampling wheel is provided with grooves.

5. A tow sampler for residual solvent analysis in tow according to claim 1, characterized in that: The cross section of the portion where the driven shaft passes through the sampling wheel is rectangular, and the hole of the sampling wheel is a rectangular hole.

6. A tow sampler for residual solvent analysis in tow according to claim 5, characterized in that: The driven rotating shaft is provided with two bearings, the bearings are located at two sides of the driven wheel, and the bearings are embedded in the support frame.

7. A tow sampler for residual solvent analysis in tow according to claim 1, characterized in that: The driven wheel has the same diameter as the sampling wheel.

8. A tow sampler for residual solvent analysis in tow according to claim 1, characterized in that: The wire-breaking blade is a single-sided safety blade.

9. A tow sampler for residual solvent analysis in tow according to claim 1, characterized in that: A push rod is arranged on the support frame.

10. A tow sampler for residual solvent analysis in tow according to claim 9, characterized in that: The top portion of the push rod is provided with an anti-slip notch, and the anti-slip notch is in a rectangular shape.

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