Down filling power testing device

Abstract

The utility model provides a down filling power testing device, and relates to the technical field of down filling power testing equipment. A down feather bulkiness testing device comprises a storage barrel which is hollow inside; the spiral slide way is detachably installed on the storage barrel and is of a conical structure, a winding mechanism is arranged at the top of the spiral slide way, balls are arranged in the spiral slide way, the tightening mechanism is connected with the balls through a winding belt, a through hole is formed in the path direction of the spiral slide way, and a connecting rod is arranged on the balls; one end of the connecting rod penetrates through the through hole and is connected with a clamping mechanism; the stirring rod is connected with the clamping mechanism and can extend into the storage barrel; and the pressure plate is movably connected with the storage barrel through a driving mechanism. The testing device can automatically adjust the stirring and pressing process of the down feather, and the detection efficiency and accuracy of the filling power of the down feather are improved.

Description

Technical Field

[0001] This utility model relates to the technical field of down loft testing equipment, and more specifically, to a testing device for down loft. Background Technology

[0002] Down fill power is a core indicator for measuring the warmth retention performance of down products. Under specified conditions, it represents the volume occupied by a unit weight of down, reflecting the down's ability to trap air. Air is a poor conductor of heat; the higher the fill power, the larger the volume of air trapped by the down fibers, and the better the warmth retention of the down product. Currently, fill power is measured by placing a pre-treated down sample into a suitable cylindrical container according to relevant technical requirements, blowing or stirring it to spread it out, pressing it down with a load-bearing disc, and then allowing it to settle. The height or volume of the down loft is then measured, and this measured value is used to represent the down fill power.

[0003] During the experiment, it was found that when pre-treated down samples were placed in a suitable cylindrical container, the testers typically held the top of the stirring rod and placed it into the container according to the test requirements to fluff the down. However, there were inconsistencies in the stirring force, speed, stirring interval, and rising distance when different testers or the same tester conducted repeated tests, thus affecting the uniformity and thoroughness of the down fluff. Furthermore, when the pressure plate, acting as a load-bearing disc, was released from its downward pressure, the free-fall motion affected the impact force on the down sample due to the distance it fell and the contact area with the down sample surface. The greater the falling distance of the pressure plate, the greater the impact force and pressure, resulting in a lower measured loft value than the actual loft. The collision between the pressure plate and the container wall also generated additional force, affecting the falling speed and descent pattern, leading to inconsistent contact time between the pressure plate and the down in different areas, resulting in varying impact forces and ultimately inaccurate measured loft values. Utility Model Content

[0004] The purpose of this invention is to provide a testing device for down loft, which can solve the problems of factors affecting test results such as stirring force, speed, spacing and uneven rising, and at the same time solve the problem of varying impact forces caused by the falling collision of the pressure plate and the contact time of the tilted sample, thereby improving the detection efficiency and accuracy of down loft.

[0005] This utility model is achieved through the following technical solution:

[0006] A down loft testing device includes a storage bucket with a hollow interior; a spiral slide detachably mounted on the storage bucket, the spiral slide having a conical structure, a winding mechanism at the top of the spiral slide, ball bearings inside the spiral slide, the winding mechanism being connected to the ball bearings via a winding belt, a through hole along the path of the spiral slide, a connecting rod on the ball bearing, one end of the connecting rod passing through the through hole and connected to a clamping mechanism; a stirring rod connected to the clamping mechanism and extending into the storage bucket; and a pressure plate movably connected to the storage bucket via a drive mechanism.

[0007] Furthermore, the winding mechanism includes a frame connected to a spiral slide, a rotating shaft disposed on the frame, and a motor connected to the rotating shaft via a coupling, wherein the winding belt is wound onto the rotating shaft.

[0008] Furthermore, an annular disc is provided at the bottom of the spiral slide, and a scale is engaged at the top of the storage bin. The outer wall of the annular disc is slidably connected to the inner wall of the scale.

[0009] Furthermore, the bottom of the spiral slide is provided with an annular disc, the top of the storage bucket is fitted with a scale, the inner wall of the scale is provided with an annular groove, the outer wall of the annular disc is provided with a slip ring, and the slip ring is installed in the annular groove.

[0010] Furthermore, a support frame is provided on the outside of the storage bin, and the driving mechanism is provided on the top of the support frame. The driving mechanism is a hydraulic cylinder, and the piston end of the hydraulic cylinder passes through the support frame and is fixedly connected to the pressure plate.

[0011] Furthermore, guide rods are provided on both sides of the hydraulic cylinder, and the guide rods pass through the support frame and are fixedly connected to the pressure plate.

[0012] Furthermore, the clamping mechanism includes a mounting base, the top of which is fixedly connected to the connecting rod, a connecting hole is provided at the bottom of the mounting base, a screw is threadedly connected to the side wall of the mounting base, the top end of the stirring rod is inserted into the connecting hole, and the screw is used to tighten the stirring rod.

[0013] Furthermore, the stirring rod includes a main rod and at least two support rods. The top of the main rod is connected to the clamping mechanism, the bottom of the main rod is hinged to the support rods, and the two support rods are located on both sides of the main rod.

[0014] The technical solution of this utility model has at least the following advantages and beneficial effects:

[0015] This invention utilizes a spiral slide, a winding mechanism, a winding belt, and ball bearings to allow the stirring rod to rise at a uniform speed within the storage container. This ensures gradual stirring from the edge to the center of the container, resulting in a small, slow swaying motion as the stirring rod rises. Simultaneously, the stirring force and speed can be controlled, effectively fluffing the down and improving its uniformity and thoroughness. The clamping mechanism, combined with the stirring rod, allows for the use of different types of stirring rods, broadening its application range. The drive mechanism, working in conjunction with the pressure plate, controls the pressing pressure and speed of the pressure plate, preventing it from shifting and colliding with the inner wall of the storage container, thus improving the accuracy of down loft testing results. Furthermore, by replacing manual operation with mechanical means, human error is reduced, meeting the requirements for test reproducibility. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 A schematic diagram of the structure of the down loft testing device provided in Embodiment 1 of this utility model;

[0018] Figure 2 A partial cross-sectional view of the down loft testing device provided in Embodiment 1 of this utility model;

[0019] Figure 3 A partial cross-sectional view of the spiral slide provided in Embodiment 1 of this utility model;

[0020] Figure 4 This is a top view of the storage bucket provided in Embodiment 1 of this utility model;

[0021] Figure 5 A top view of the spiral slide provided in Embodiment 1 of this utility model;

[0022] Figure 6 This is a schematic diagram of the scale provided in Embodiment 1 of this utility model.

[0023] Icons: 1-Storage bin, 2-Spiral slide, 3-Rewinding mechanism, 4-Pressure plate, 5-Hydraulic cylinder, 6-Support frame, 7-Guide rod, 8-Scale dial, 9-Annular disc, 10-Stirring rod, 21-Ball bearing, 22-Rewinding belt, 23-Connecting rod, 24-Mounting base, 25-Screw, 26-Wave-shaped sliding track, 31-Frame, 32-Rotating shaft, 33-Motor, 101-Main rod, 102-Support rod. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0025] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0026] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0027] In the description of this utility model, it should be noted that if terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" appear to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0028] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] Example 1

[0030] like Figures 1-6As shown, this embodiment provides a testing device for down loft, including a storage tank 1, which is hollow inside; a spiral slide 2, which is detachably installed on the storage tank 1, the spiral slide 2 has a conical structure, a winding mechanism 3 is provided at the top of the spiral slide 2, a ball bearing 21 is provided inside the spiral slide 2, the winding mechanism 3 is connected to the ball bearing 21 through a winding belt 22, a through hole is provided along the path direction of the spiral slide 2, a connecting rod 23 is provided on the ball bearing 21, one end of the connecting rod 23 passes through the through hole and is connected to a clamping mechanism; a stirring rod 10 is connected to the clamping mechanism and can extend into the storage tank 1; and a pressure plate 4 is movably connected to the storage tank 1 through a driving mechanism.

[0031] The spiral slide 2, winding mechanism 3, winding belt 22, and ball bearings 21 work together to allow the stirring rod 10 to rise at a uniform speed within the storage container 1. This ensures the stirring rod 10 gradually stirs from the edge to the center of the storage container 1, allowing it to rise while swaying slightly and slowly. The stirring force and speed can also be controlled to fully fluff the down, improving its uniformity and thoroughness. The clamping mechanism, in conjunction with the stirring rod 10, allows for the use of different types of stirring rods, broadening its application range. The drive mechanism, in conjunction with the pressure plate 4, controls the pressing pressure and speed of the pressure plate 4, preventing it from shifting and colliding with the inner wall of the storage container 1, thus improving the accuracy of the down loft test results. Furthermore, by replacing manual operation with mechanical operation, human error is reduced, meeting the requirements for test reproducibility. The outer wall of the storage container 1 is equipped with graduation lines for recording down thickness.

[0032] In a specific embodiment, the winding mechanism 3 includes a frame 31 connected to the spiral slide 2, a rotating shaft 32 disposed on the frame 31, and a motor 33 connected to the rotating shaft 32 via a coupling. The winding belt 22 is wound around the rotating shaft 32. The winding belt 22 is arranged along the path of the spiral slide 2, with one end fixedly connected to the ball bearing 21 and the other end wound around the rotating shaft 32. In use, the motor 33 drives the rotating shaft 32 to rotate, which in turn drives the winding belt 22 to wind up, thereby causing the ball bearing 21 to move within the spiral slide 2. Simultaneously, the stirring rod 10 gradually rises from the bottom of the spiral slide 2, causing the stirring rod 10 to stir the down in the storage container 1.

[0033] In a specific embodiment, an annular disc 9 is provided at the bottom of the spiral slide 2, and a graduated disc 8 is snapped onto the top of the storage bucket 1. The outer wall of the annular disc 9 is slidably connected to the inner wall of the graduated disc 8. Preferably, a locking block is provided on the graduated disc 8, and a locking groove is provided on the top of the storage bucket 1. The locking block and the locking groove engage to achieve quick installation of the graduated disc 8. The annular disc 9 can rotate on the graduated disc 8, driving the spiral slide 2 to rotate and changing the position of the spiral path in different areas of the bucket wall, realizing the directional movement of the spiral path and providing the operator with a uniform distance to select the area, so that the down can be fluffed in all directions. The edge of the bottom circular track of the spiral slide 2 is close to the inner diameter edge of the storage bucket 1. In other embodiments, a wave-shaped sliding track 26 can be provided inside the spiral slide 2, and the ball bearing 21 is located inside the wave-shaped sliding track 26 to realize the oscillating action of the stirring rod 10.

[0034] In a specific embodiment, the inner wall of the scale 8 is provided with an annular groove, and the outer wall of the annular disk 9 is provided with a slip ring, which is installed in the annular groove.

[0035] In a specific embodiment, a support frame 6 is provided on the outside of the storage bin 1, and a driving mechanism, which is a hydraulic cylinder 5, is provided on the top of the support frame 6. The piston end of the hydraulic cylinder 5 passes through the support frame 6 and is fixedly connected to the pressure plate 4. The hydraulic cylinder 5 can control the downward pressure and downward speed of the pressure plate 4, and at the same time, it can balance the pressure plate 4, solving the problems of uneven impact forces generated by the pressure plate 4 falling height, collision, tilting, and contact with the sample, improving the uniformity of force between the pressure plate 4 and the sample, and making the test results more accurate.

[0036] In a specific embodiment, guide rods 7 are also provided on both sides of the hydraulic cylinder 5, and the guide rods 7 pass through the support frame 6 and are fixedly connected to the pressure plate 4. The guide rods 7 can further improve the balance of the pressure plate 4.

[0037] In a specific embodiment, the clamping mechanism includes a mounting base 24, the top of which is fixedly connected to the connecting rod 23. A connecting hole is provided at the bottom of the mounting base 24, and a screw 25 is threadedly connected to the side wall of the mounting base. The top end of the stirring rod 10 is inserted into the connecting hole, and the screw 25 is used to tighten the stirring rod 10. The mounting base 24, screw 25, and connecting hole work together to enable quick installation of the stirring rod 10, facilitating replacement.

[0038] In a specific embodiment, the stirring rod 10 includes a main rod 101 and at least two support rods 102. The top of the main rod 101 is connected to the clamping mechanism, and the bottom of the main rod 101 is hinged to the support rods 102. The two support rods 102 are located on both sides of the main rod 101. The two support rods 102 are adjustable in angle and can be fixed in angle, with a structure similar to a compass. Using the two support rods 102 for stirring improves the stirring effect.

[0039] The working principle of a down loft testing device is as follows: The sample is placed in the storage bucket 1. Initially, the ball bearing 21 is located at the bottom of the spiral slide 2. The motor 33 drives the rotating shaft 32 to rotate, causing the winding belt 22 to wind up on the rotating shaft 32. The movement of the winding belt 22 in the spiral slide 2 drives the ball bearing 21 to move. When the ball bearing 21 moves along the spiral path, it simultaneously drives the stirring rod 10 to swing from the bucket wall to the center of the bucket. The stirring rod 10 swings slowly and gently while rising, loosening the down. When the ball bearing 21 reaches the top of the spiral slide 2, it can slide counterclockwise to the bottom of the spiral slide 2 or stop sliding, completing the stirring of the down. Then remove the dial 8 from the storage bin 1, thereby removing the spiral slide 2. Place the storage bin 1 directly below the pressure plate 4. The hydraulic cylinder 5 drives the pressure plate 4 to descend, allowing the pressure plate 4 to gradually compress the down in the storage bin 1. Based on the height of the down after fluffing and the height of the down after compression, the fluffiness of the down can be calculated.

[0040] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A device for testing the loft of down feathers, characterized in that: It includes a storage bucket with a hollow interior; a spiral slide that can be detachably installed on the storage bucket, the spiral slide having a conical structure, a winding mechanism at the top of the spiral slide, and ball bearings inside the spiral slide. The winding mechanism is connected to the ball bearings via a winding belt, and a through hole is provided along the path of the spiral slide. A connecting rod is provided on the ball bearing, one end of which passes through the through hole and is connected to a clamping mechanism; a stirring rod connected to the clamping mechanism and extending into the storage bucket; and a pressure plate that is movably connected to the storage bucket via a drive mechanism.

2. The down loft testing device according to claim 1, characterized in that, The winding mechanism includes a frame connected to a spiral slide, a rotating shaft disposed on the frame, and a motor connected to the rotating shaft via a coupling, wherein the winding belt is wound onto the rotating shaft.

3. The down loft testing device according to claim 1, characterized in that, The bottom of the spiral slide is provided with an annular disc, and the top of the storage bucket is fitted with a scale. The outer wall of the annular disc is slidably connected to the inner wall of the scale.

4. The down loft testing device according to claim 3, characterized in that, The inner wall of the dial is provided with an annular groove, and the outer wall of the annular disk is provided with a slip ring, which is installed in the annular groove.

5. The down loft testing device according to claim 1, characterized in that, A support frame is provided on the outside of the storage bin, and the driving mechanism is provided on the top of the support frame. The driving mechanism is a hydraulic cylinder, and the piston end of the hydraulic cylinder passes through the support frame and is fixedly connected to the pressure plate.

6. The down loft testing device according to claim 5, characterized in that, Guide rods are also provided on both sides of the hydraulic cylinder, and the guide rods pass through the support frame and are fixedly connected to the pressure plate.

7. The down loft testing device according to claim 1, characterized in that, The clamping mechanism includes a mounting base, the top of which is fixedly connected to the connecting rod, a connecting hole at the bottom of the mounting base, and a screw threaded to the side wall of the mounting base. The top end of the stirring rod is inserted into the connecting hole, and the screw is used to tighten the stirring rod.

8. The down loft testing device according to claim 1, characterized in that, The stirring rod includes a main rod and at least two support rods. The top of the main rod is connected to the clamping mechanism, the bottom of the main rod is hinged to the support rods, and the two support rods are located on both sides of the main rod.

Images