Weaving shrinkage testing device

Abstract

The invention relates to the field of weaving shrinkage testing, in particular to a weaving shrinkage testing device which comprises an upper shell and a lower shell, the upper shell and the lower shell can be in butt joint up and down, the outer wall of the upper shell is rotationally connected with an outer ring, the bottom of the outer ring is fixedly connected with a cutting knife, notches are formed in the two sides of the outer wall of the lower shell, and the inner wall of the lower shell is connected with a conductive plate. A pressure rod is slidably connected to the circle center of the current-conducting plate through an open hole, a rack is connected to the bottom of the pressure rod, a gear is connected to one side of the rack in a meshed mode, stable pressure is applied to alginate fibers on the alginate fiber cloth through the pressure rod, and the two ends of the alginate fibers are fixed; the two ends of the alginate fiber are gradually separated from the bottom of the upper shell, the height of the isosceles triangle formed by the section of alginate fiber can be recorded at the moment when the pressure effect on the alginate fiber disappears, the actual length of the alginate fiber in the straightening state is calculated in this way, and the shrinkage rate of the alginate fiber cloth can be rapidly obtained.

Description

Technical Field

[0001] The present invention relates to the field of weaving shrinkage testing, and in particular to a weaving shrinkage testing device. Background Art

[0002] The shrinkage rate is one of the values that textile companies often measure. If the shrinkage rate is not controlled properly, it will lead to over-purchase of yarn and almost no profit. It may also cause the fabric to be too thick or too thin, resulting in customer returns. Secondly, the mismatch of yarn tension will also cause double damage to equipment, causing unnecessary losses to textile companies. Therefore, controlling the shrinkage rate within a reasonable range can control costs and increase profits for manufacturers, and customers can get fabrics of reasonable size and feel. Therefore, we can often see "gram weight" and "density" on fabric labels, which are both precise controls of the shrinkage rate.

[0003] Seaweed fiber is extracted from seaweed and is a new type of textile material with the characteristics of being natural, environmentally friendly and degradable. It comes from the abundant brown algae resources in the ocean. After refining, seaweed polysaccharides are obtained, which are then deeply processed by wet spinning to finally make this natural biomass regenerated fiber.

[0004] In the prior art, the measurement of weaving shrinkage is to first measure the length of the fabric, then take out any yarn on the fabric and measure its actual length, and then substitute it into the weaving shrinkage calculation formula to obtain the actual weaving shrinkage. However, the entire measurement process is very complicated, especially the stitch removal part. The warp and weft distribution on the fabric is intricate. Especially when measuring seaweed fiber, due to the low elasticity of the fiber, once the tension applied in the straightened state is large, it is easy to break. At the same time, the surveyor needs to carry a ruler with him to stably stretch the yarn to avoid bending. In actual operation, it is difficult for one person to complete it independently, resulting in the current inconvenience and difficulty in measuring weaving shrinkage.

[0005] For this reason, those skilled in the art have designed a weaving shrinkage testing device to solve the above-mentioned problem. Summary of the Invention

[0006] In view of the above-mentioned technical deficiencies, the purpose of the present invention is to provide a shrinkage testing device that can be adapted for welding meshes with different spacings.

[0007] In order to achieve the above-mentioned purpose, the invention comprises an upper shell and a lower shell that can be docked up and down, the outer wall of the upper shell is rotatably connected to an outer ring, the bottom of the outer ring is fixedly connected to a cutting knife, notches are opened on both sides of the outer wall of the lower shell, the inner wall of the lower shell is connected to a conductive plate, the center of the conductive plate is slidably connected to a pressure rod through an opening, the bottom of the pressure rod is connected to a rack, one side of the rack is meshed with a gear, a control panel is embedded on the outside of the lower shell, a power supply is arranged in the control panel, the positive pole of the power supply is connected to wire one, the negative pole of the power supply is connected to wire two, wire one is connected to the pressure rod, and wire two is connected to the conductive plate, when the two sections of the fiber are tightened to apply a reaction force to the pressure rod, wire one and wire two are in a conductive state, and when the fiber loses tension, wire one and wire two are in a disconnected state.

[0008] Preferably, when the upper shell and the lower shell are butted together, the notch, the tip of the cutting knife and the lower surface of the bottom of the upper shell are located on the same horizontal line, and the notch and the conductive plate are located on the same horizontal line.

[0009] Preferably, a magnifying glass is installed on the inner wall of the upper shell, an observation port is opened on the top of the upper shell, and a protective lens is connected to the observation port. The center of the magnifying glass, the center of the observation port and the center of the conductive plate are on the same axis.

[0010] Preferably, a rotatable handle is connected to the end of the gear shaft, and the handle is located outside the lower shell, and the handle can drive the gear to rotate.

[0011] Preferably, the pressure rod includes an upper rod, a lower rod and a spring. The upper rod and the lower rod are connected by a spring. A female interface is provided at the bottom of the upper rod, and a male connector is connected to the top of the lower rod, and the male connector is located in the inner ring of the spring.

[0012] Preferably, the pressure rod further comprises a fitting opening opened at the top of the upper rod, and a pressure sensor is installed at the recess of the fitting opening, and the fitting opening can contact with the fibers on the cloth.

[0013] Preferably, the first wire is connected to the upper rod in the pressure rod, the spring is made of insulating material, and the upper rod, the female interface, the male connector and the lower rod are all made of conductive material.

[0014] The beneficial effects of the present invention are as follows: stable pressure is applied to the seaweed fibers on the seaweed fiber cloth by the pressure rod, and the two ends of the seaweed fibers are fixed. In the process of applying pressure, the two ends of the seaweed fibers are gradually separated from the bottom of the upper shell. When the pressure on the seaweed fibers disappears, the height of the isosceles triangle formed by the section of seaweed fibers can be recorded. In this way, the actual length of the seaweed fibers in the straightened state can be calculated, and the shrinkage rate of the seaweed fiber cloth can be quickly obtained. In order to adapt to the low elasticity of the seaweed fibers, when the pressure rod is used to apply pressure to the seaweed fibers, the two ends of the fibers are not limited, but allowed to slide until they fall off from the lower pressure surface of the upper shell. Even if the pressure is too large, the two ends of the seaweed can avoid sudden breakage during measurement by sliding, and the instantaneous falling off of the two ends of the fiber can complete the measurement, thereby avoiding defects while completing the measurement by utilizing the defects. At the same time, seaweed fiber is more suitable for the production of medical gauze because of its certain antibacterial properties and high liquid absorption. The pores between the fibers on the gauze are large, and the fabric is relatively thin. Therefore, this equipment is more suitable for this thinner fabric. The pressure rod used can more easily pass through the pores between the fabrics and select the seaweed fiber in the center. The larger the pore size of the fabric, the larger the selectable diameter of the pressure rod, and the more convenient it is to select the fiber. Secondly, the method adopted by the present invention is to first sample and then calculate the seaweed fiber fabric. Secondly, the device has a simple structure and is convenient for sampling. It does not need to remove the seaweed fiber separately before measuring, which greatly simplifies the previous complicated process of measuring, removing the thread, measuring, and calculating the thickness. It is also easy to carry and more convenient to perform sampling measurement directly in the finished material. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] To more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive effort.

[0016] Figure 1 It is a main structural schematic diagram of the present invention.

[0017] Figure 2 It is a schematic structural diagram of the upper shell of the present invention.

[0018] Figure 3 It is a schematic diagram of the interior of the upper shell of the present invention.

[0019] Figure 4 It is a schematic diagram of the lower shell of the present invention.

[0020] Figure 5 It is a schematic diagram of the internal structure of the lower shell of the present invention.

[0021] Figure 6 It is a schematic structural diagram of the pressure rod of the present invention.

[0022] Figure 7 The present invention Figure 6 Schematic diagram of the locally enlarged structure at point A in the middle.

[0023] Figure 8 It is a schematic diagram of the structure of the pressure rod lifting the seaweed fiber of the present invention.

[0024] In the figure: 1. Upper shell; 2. Outer ring; 3. Cutting knife; 4. Magnifying glass; 5. Lower shell; 6. Notch; 7. Pressure rod; 701. Upper rod; 702. Female interface; 703. Male connector; 704. Spring; 705. Lower rod; 706. Fitting mouth; 8. Rack; 9. Gear; 10. Conductive plate; 11. Wire 1; 12. Wire 2. DETAILED DESCRIPTION

[0025] The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific implementation methods.

[0026] Among them, the drawings are only used for illustrative purposes and represent only schematic diagrams rather than actual pictures, and should not be understood as limiting this patent; in order to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0027] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "inside", "outside" and the like indicate an orientation or position relationship based on the orientation or position relationship shown in the drawings, it is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as limiting this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0028] In the description of the present invention, unless otherwise expressly specified or limited, when the term "connection" or the like appears to indicate a connection relationship between components, such term should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be internal communication between two components or an interaction between two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood in specific circumstances.

[0029] Example 1: The present invention provides a shrinkage test device, such as Figure 1-8 As shown, it includes an upper shell 1 and a lower shell 5 that can be docked up and down, the outer wall of the upper shell 1 is rotatably connected to the outer ring 2, the bottom of the outer ring 2 is fixedly connected to the cutting knife 3, notches 6 are opened on both sides of the outer wall of the lower shell 5, the inner wall of the lower shell 5 is connected to a conductive plate 10, the center of the conductive plate 10 is slidably connected to a pressure rod 7 through an opening, the bottom of the pressure rod 7 is connected to a rack 8, and one side of the rack 8 is meshed with a gear 9, a control panel is inlaid on the outside of the lower shell 5, a power supply is provided in the control panel, the positive pole of the power supply is connected to wire 11, and the negative pole of the power supply is connected to wire 2 12, wire 11 is connected to the pressure rod 7, and wire 2 12 is connected to the conductive plate 10, when the two sections of the fiber are tightened and a reaction force is applied to the pressure rod 7, wire 11 and wire 2 12 are in a conducting state, and when the fiber loses tension, wire 11 and wire 2 12 are in a disconnected state.

[0030] When the upper shell 1 and the lower shell 5 are butted together, the notch 6 and the tip of the cutting knife 3 and the lower surface of the bottom of the upper shell 1 are located on the same horizontal line, and the cutting knife 3 can cut the seaweed fiber cloth and cut the seaweed fiber cloth into the same length as the inner wall diameter of the lower shell 5. Finally, the seaweed fibers on the seaweed fiber cloth are also the same length, which can quickly obtain the length of the cut seaweed fiber cloth after weaving on the seaweed fiber. The notch 6 and the conductive plate 10 are on the same horizontal line. When the seaweed fiber cloth is placed in the notch 6, the seaweed fiber cloth can be directly placed flat on the conductive plate 10. A magnifying glass 4 is installed on the inner wall of the upper shell 1. An observation port is opened on the top of the upper shell 1, and a protective lens is connected to the observation port. The center of the magnifying glass 4, the center of the observation port and the center of the conductive plate 10 are on the same axis. The magnifying glass 4 can magnify the seaweed fibers on the seaweed fiber cloth, making it convenient to align the seaweed fibers with the center hole of the conductive plate 10.

[0031] The shaft end of the gear 9 is connected to a rotatable handle, and the handle is located on the outside of the lower shell 5. The handle can drive the gear 9 to rotate. By rotating the handle, the gear 9 can be driven to rotate, pushing the rack 8 and the pressure rod 7 to move upward. The pressure rod 7 applies stable pressure to the seaweed fiber. When the pressure disappears, the corresponding length of the pressure rod 7 is quickly recorded to obtain the height of the isosceles triangle.

[0032] The pressure rod 7 includes an upper rod 701, a lower rod 705 and a spring 704. The upper rod 701 and the lower rod 705 are connected by the spring 704. A female interface 702 is provided at the bottom of the upper rod 701, and a male connector 703 is connected to the top of the lower rod 705. The male connector 703 is located in the inner circle of the spring 704. When the two ends of the seaweed fiber are pulled out from the bottom of the upper shell 1, the pressure of the pressure rod 7 on the seaweed fiber disappears instantly. At this time, the spring 704 forces the upper rod 701 and the lower rod 705 to separate from each other, disconnecting the female interface 702 and the male connector 703 from each other, thereby quickly disconnecting the circuit and recording the resistance value before the final disconnection. The length of the upper rod 701 extending outward is obtained by converting the resistance value.

[0033] The pressure rod 7 also includes a fitting opening 706 opened at the top of the upper rod 701, and a pressure sensor is installed in the recess of the fitting opening 706. The fitting opening 706 can contact the seaweed fibers on the seaweed fiber cloth. The pressure sensor set in the fitting opening 706 can also accurately locate the upward extension length of the upper rod 701. When the pressure of the seaweed fibers on the fitting opening 706 disappears, it means that the two ends of the seaweed fibers are no longer pressed against the bottom of the upper shell 1. At this time, the recorded length is the height of the isosceles triangle.

[0034] Wire 11 is connected to the upper rod 701 in the pressure rod 7, and the spring 704 is made of insulating material. When the spring 704 separates the upper rod 701 and the lower rod 705 from each other, the circuit can be disconnected. Therefore, the spring 704 between the two needs to be set to insulating material to avoid circuit conduction. The upper rod 701, the female interface 702, the male connector 703 and the lower rod 705 are all made of conductive materials.

[0035] Working principle: When testing the shrinkage of seaweed fiber cloth, first insert the seaweed fiber cloth into the gap 6, spread the seaweed fiber cloth flat on the upper surface of the conductive plate 10, keep the seaweed fiber cloth straight, dock the upper shell 1 with the lower shell 5, press the seaweed fiber cloth with the bottom of the upper shell 1, and then perform visual calibration. Through the observation port on the top of the upper shell 1, align any seaweed fiber on the seaweed fiber cloth with the center hole of the conductive plate 10. The best choice is seaweed fiber. The seaweed fiber at the center of the cloth is cut by the outer ring 2 of the outermost circle and the cutting knife 3 at the bottom of the outer ring 2 cuts the seaweed fiber cloth. After the long seaweed fiber cloth is cut, it becomes independent seaweed fiber cloth and is stored in the lower shell 5. The independent seaweed fiber cloth after cutting is pressed by the bottom of the upper shell 1. At this time, the handle is turned to drive the gear 9 to rotate, and the rack 8 and the pressure rod 7 are gradually raised. The fitting opening 706 at the top of the pressure rod 7 lifts a single seaweed fiber on the seaweed fiber cloth; The pressure rod 7 continuously moves upward, pushing up the center of the seaweed fiber. The parts of the seaweed fiber at both ends that are pressed by the bottom of the upper shell 1 will continue to slide outward. After the center of the seaweed fiber is pushed up, it will take on an isosceles trapezoidal shape. At this time, the pressure sensor at the fitting opening 706 on the top of the pressure rod 7 is continuously pressed, and the spring 704 between the upper rod 701 and the lower rod 705 is in a compressed state. The female interface 702 and the male connector 703 continue to maintain a fitting state. The pressure rod 7 keeps moving upwards, and the control panel keeps recording the height. When the two ends of the seaweed fiber are released from the pressure at the bottom of the upper shell 1, the control panel stops recording the displacement height of the pressure rod 7. The height recorded at this time is the height of the isosceles triangle of the seaweed fiber at the last moment before it is released from the bottom of the upper shell 1. The control panel will substitute the diameter of the conductive plate 10, that is, the base length of the isosceles triangle and the height of the isosceles triangle into the following formula: waist length = 2√ (d / 2) 2 +h 2 , d is the length of the base of the triangle, h is the height of the triangle, and the waist length of the isosceles triangle is obtained, which is also the actual length of the seaweed fiber. The diameter of the inner circle of the lower shell (5) is also known, which is also the length of the seaweed fiber cloth after the seaweed fiber is woven on it. The length of the seaweed fiber measured alone is also known. Substitute it into the following formula: shrinkage rate = (L'-L) / L, L' is the length of the seaweed fiber after it is fully stretched, and L is the length of the seaweed fiber cloth itself, and the shrinkage rate is obtained.

[0036] When the pressure rod 7 applies a certain pressure to a low-elasticity material such as seaweed, the two sections of the seaweed fiber can offset the risk of the seaweed fiber breaking by sliding outward, and the way in which the two ends of the seaweed fiber are actively released outward also complies with the measurement method of the present application, recording the data one second before the two ends are completely released, and quickly obtaining the actual length of the seaweed fiber. At the same time, it also avoids the risk of breaking the fiber due to excessive stretching, greatly improving the success rate of measuring the shrinkage rate of low-elasticity materials such as seaweed fibers.

[0037] The control panel can measure the length of the pressure rod 7 extending above the central opening of the conductive plate 10 by measuring resistance. The specific method is that through the resistance measurement method, the current starts from the positive pole of the power supply, passes through the conductive plate 10 through the wire 11, and then passes through the upper rod 701, the female interface 702, the male connector 703 and the lower rod 705 in sequence, and finally returns to the negative pole of the power supply through the wire 2 12. If the upper rod 701 continues to rise, the distance the current in the upper rod 701 travels will decrease, and the resistance will decrease. Its principle is similar to that of a sliding rheostat. When the two ends of the seaweed fiber are released from the pressure at the bottom of the upper shell 1, the pressure constrained on the top of the upper rod 701 will disappear instantly. Under the reset action of the spring 704, the female interface 702 and the male connector 703 between the upper rod 701 and the lower rod 705 will be instantly separated. At this time, the circuit is completely disconnected and the resistance cannot be measured. The last resistance measured before the disconnection can be directly converted into the height of the isosceles triangle.

[0038] It should be noted that the above-described specific embodiments are merely preferred embodiments of the present invention and the technical principles employed. Those skilled in the art will appreciate that various modifications, equivalent substitutions, and variations may be made to the present invention. However, as long as these modifications do not depart from the spirit of the present invention, they are intended to be within the scope of protection of the present invention. Furthermore, certain terms used in the specification and claims of this application are not intended to be limiting and are provided solely for ease of description.

Claims

1. A shrinkage testing device, characterized in that: The invention comprises an upper shell (1) and a lower shell (5) which can be connected to each other up and down, wherein the outer wall of the upper shell (1) is rotatably connected to an outer ring (2), the bottom of the outer ring (2) is fixedly connected to a cutting knife (3), notches (6) are provided on both sides of the outer wall of the lower shell (5), the inner wall of the lower shell (5) is connected to a conductive plate (10), the center of the conductive plate (10) is slidably connected to a pressure rod (7) through an opening, the bottom of the pressure rod (7) is connected to a rack (8), one side of the rack (8) is meshed with a gear (9), and the lower shell ( 5) A control panel is embedded on the outside, and a power supply is provided inside the control panel. The positive pole of the power supply is connected to the first conductor (11), and the negative pole of the power supply is connected to the second conductor (12). The first conductor (11) is connected to the pressure rod (7), and the second conductor (12) is connected to the conductive plate (10). When the two sections of the fiber are tightened to apply a reaction force to the pressure rod (7), the first conductor (11) and the second conductor (12) are in a conducting state. When the fiber loses the tension, the first conductor (11) and the second conductor (12) are in a disconnected state.

2. The shrinkage testing device according to claim 1, characterized in that: When the upper shell (1) and the lower shell (5) are butted together, the notch (6), the tip of the cutting knife (3), and the lower surface of the bottom of the upper shell (1) are located on the same horizontal line, and the notch (6) and the conductive plate (10) are located on the same horizontal line.

3. The shrinkage testing device according to claim 1, characterized in that: A magnifying glass (4) is installed on the inner wall of the upper shell (1), an observation port is opened on the top of the upper shell (1), and a protective lens is connected to the observation port. The center of the magnifying glass (4), the center of the observation port and the center of the conductive plate (10) are on the same axis.

4. The weaving shrinkage testing device according to claim 1, characterized in that: A rotatable handle is connected to the shaft end of the gear (9), and the handle is located outside the lower housing (5). The handle can drive the gear (9) to rotate.

5. The shrinkage testing device according to claim 1, characterized in that: The pressure rod (7) includes an upper rod (701), a lower rod (705) and a spring (704). The upper rod (701) and the lower rod (705) are connected via the spring (704). A female interface (702) is provided at the bottom of the upper rod (701). A male connector (703) is connected to the top of the lower rod (705), and the male connector (703) is located inside the inner ring of the spring (704).

6. The shrinkage testing device according to claim 5, characterized in that: The pressure rod (7) further comprises a fitting opening (706) opened at the top of the upper rod (701), and a pressure sensor is installed at a recessed portion of the fitting opening (706), and the fitting opening (706) can contact fibers on the cloth.

7. The shrinkage testing device according to claim 5, characterized in that: The wire 1 (11) is connected to the upper rod (701) in the pressure rod (7), the spring (704) is made of insulating material, and the upper rod (701), the female interface (702), the male connector (703) and the lower rod (705) are all made of conductive material.

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