A testing device for detecting the mite-proof performance of down comforters.

Abstract

This invention discloses a testing device for detecting the mite-proof performance of down comforters. It includes a conveyor belt for transporting down comforters and a mite-proof performance testing component mounted on the conveyor belt mechanism. The mite-proof performance testing component includes a support frame, a transparent cover movably connected below the support frame, and a cylinder for driving the transparent cover up and down. The bottom of the transparent cover is open and parallel to the conveyor belt. Several partitions are fixed at equal intervals inside the transparent cover. The partitions, along with the transparent cover, are used to press and contact the down comforter on the conveyor belt, dividing the transparent cover into several independent test chambers for placing mites. Each test chamber corresponds to a down comforter area of ​​equal size. The same mite larvae are placed in each area, and the mite growth is observed after a period of time under the same conditions. This avoids testing errors caused by uneven loft and fat residue in different down comforters.

Description

Technical Field

[0001] This invention relates to the field of down comforter testing equipment technology, specifically to a testing device for detecting the mite-proof performance of down comforters. Background Technology

[0002] The filling of down comforters is mainly down. Since down is an animal protein fiber, it has a higher heat retention than cotton. The down spherical fibers are densely covered with millions of tiny triangular pores, which can expand and contract with temperature changes, producing a temperature-regulating function. It can absorb the heat emitted by the human body and insulate against the intrusion of cold air from the outside. Because the chemical composition of down is a protein with animal fat, even after degreasing and washing processes during pretreatment, fat and bacteria cannot be completely removed. Therefore, the down comforter fabric needs to be treated to prevent insects and mites from breeding on the fabric surface or even damaging the down inside the fabric, so as to ensure the quality of the down comforter.

[0003] Nowadays, when testing the mite-proof performance of down comforters, several down comforters are usually selected and placed in an isolation facility. Then, an equal number of mite eggs are placed on the down comforters and kept under the same temperature and environmental conditions for the same amount of time. This allows for observation of mite growth on each comforter, thereby testing the mite-proof performance of the down comforter. However, during the test, the loft and fat residue of the down used in each down comforter are not uniform after processing, which can lead to errors in the test. Summary of the Invention

[0004] The purpose of this invention is to provide a testing device for detecting the mite-proof performance of down comforters, which solves the problem of large testing errors in existing down comforter mite-proof performance testing devices.

[0005] The present invention achieves the above objectives through the following technical solutions:

[0006] A testing device for detecting the mite-proof performance of down comforters, the testing device includes a conveyor belt for conveying down comforters, and a mite-proof performance testing component disposed on the conveyor belt mechanism. The mite-proof performance testing component includes a support, a transparent cover movably connected below the support, and a cylinder for driving the transparent cover to move up and down. The bottom surface of the transparent cover is open and parallel to the conveyor belt. Several partitions are fixed at equal intervals inside the transparent cover. The partitions are used to press the down comforter on the conveyor belt together with the transparent cover and divide the transparent cover into several independent test chambers for placing mites. Each test chamber corresponds to a down comforter area of ​​equal area.

[0007] A further improvement is that the edge of the partition that contacts the down comforter is equipped with a heating element, which is used to heat the down comforter at the contact point to prevent mites from passing through.

[0008] A further improvement is that the test equipment also includes a transmission frame and conveyor rollers located at both ends of the transmission frame, with the conveyor belt sleeved on the conveyor rollers.

[0009] A further improvement is that annular grooves are provided on the outer surface of the conveyor roller near both sides, and a limiting band that engages with the inside of the annular groove is fixed on the conveyor belt.

[0010] A further improvement is that one end of the transmission frame is rotatably connected to two opposing guide plates via an elastic hinge. The guide plates are bent in shape. A fixed frame is provided on the top of the transmission frame. A movable block is slidably connected inside the fixed frame. A driving component is provided on one side of the fixed frame to drive the movable block to move. A connecting plate is connected to the bottom of the movable block. Both sides of the connecting plate are connected to constraint plates that fit against the outer side of the guide plates. The driving component drives the movable block and the connecting plate to move, thereby causing the constraint plates to slide along the outer side of the guide plates to change the distance between the ends of the two guide plates.

[0011] A further improvement is that the driving component includes a motor installed inside the fixed frame, and a screw located at the output end of the motor and rotatably connected to the inner wall of the fixed frame, wherein the movable block is threadedly connected to the screw and slidably engaged with the fixed frame.

[0012] A further improvement is that multiple guide rollers are fixed at equal intervals between the inner walls on both sides of the transmission frame.

[0013] A further improvement is that the top of the transparent cover is provided with an openable and closable window.

[0014] The beneficial effects of this invention are as follows:

[0015] (1) In this invention, a down comforter is transported to the bottom of a transparent cover by a conveyor belt, and then the transparent cover is pressed onto the down comforter. Under the action of multiple partitions inside the transparent cover, the down comforter is divided into multiple areas, and the adjacent parts of each area are compacted by the partitions. Then, the same mite seedlings are placed in each area, and the growth of the mites is observed after a period of time under the same conditions. This can avoid the test error caused by the uneven loft and fat residue of different down comforters.

[0016] (2) In this invention, when conveying down comforters, the driving component drives two constraint plates to move the guide plate, thereby changing the opening size of the guide plate, so that down comforters of different sizes can be guided, preventing the edges of the down comforters from getting stuck at the feed inlet and tearing.

[0017] (3) In this invention, when conveying down comforters, the down comforters are pressed onto the conveyor belt by the guide roller to prevent slippage. Furthermore, the conveyor roller and the conveyor belt are interlocked by the annular groove and the limiting belt to prevent the conveyor belt from slipping axially when conveying down comforters. Attached Figure Description

[0018] Figure 1 A top-view three-dimensional structural diagram of the test equipment;

[0019] Figure 2 A bottom-view three-dimensional structural diagram of the test equipment;

[0020] Figure 3 This is a partial cross-sectional three-dimensional structural schematic diagram of the experimental equipment;

[0021] Figure 4 for Figure 2 Enlarged view of point A in the middle;

[0022] In the diagram: 1. Transmission frame; 2. Guide plate; 3. Fixed frame; 4. Constraint plate; 5. Screw; 6. Movable block; 7. Motor; 8. Bracket; 9. Cylinder; 10. Transparent cover; 11. Movable window; 12. Partition; 13. Guide roller; 14. Conveying roller; 15. Conveying belt; 16. Connecting plate; 17. Annular groove; 18. Limiting belt. Detailed Implementation

[0023] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0024] Combination Figure 1-4 As shown, a test device for testing the mite-proof performance of down comforters is disclosed. The test device includes a conveyor belt 15 for conveying down comforters and a mite-proof performance testing component mounted on the conveyor belt 15. The mite-proof performance testing component includes a support 8, a transparent cover 10 movably connected below the support 8, and a cylinder 9 for driving the transparent cover 10 to move up and down. The bottom surface of the transparent cover 10 is open and parallel to the conveyor belt 15. Several partitions 12 are fixed at equal intervals inside the transparent cover 10. The partitions 12 are used to press the down comforter on the conveyor belt 15 together with the transparent cover 10 and divide the transparent cover 10 into several independent test chambers for placing mites. Each test chamber corresponds to a down comforter area of ​​equal area.

[0025] During the mite-proof performance test, a down comforter is conveyed to the bottom of the transparent cover 10 via the conveyor belt 15. The cylinder 9 is activated, which moves the support 8 and the transparent cover 10 downwards, so that the bottom of the transparent cover 10 compacts the down comforter. At this time, the partition 12 divides the transparent cover 10 into several independent test chambers for placing mites. Each test chamber corresponds to a down comforter area of ​​equal size. Then, the same mite seedlings are placed in each area. After a period of time under the same conditions, the growth of mites is observed, thereby realizing the mite-proof performance test of the down comforter. After the test is completed, the down comforter can be transported away via the conveyor belt 15.

[0026] Preferably, in this invention, the edge of the partition 12 that contacts the down comforter is provided with an electric heating tube (not shown in the figure). The electric heating tube is used to heat the down comforter at the contact point. The heating temperature is generally 70-90°C to prevent mites from passing through. In this way, mites will not move between different areas, which helps to improve the accuracy of the test.

[0027] Preferably, the test equipment of the present invention further includes a transmission frame 1 and conveying rollers 14 disposed at both ends of the transmission frame 1. A conveyor belt 15 is sleeved on the conveying rollers 14. One of the conveying rollers 14 drives the conveyor belt 15 to rotate under the drive of the motor, so as to realize the conveying of the down comforter.

[0028] Preferably, in this invention, the outer surface of the conveying roller 14 is provided with annular grooves 17 near both sides, and the conveyor belt 15 is fixed with a limiting belt 18 that engages inside the annular grooves 17, so as to prevent the conveyor belt 15 from axially sliding when conveying down comforters.

[0029] Preferably, in this invention, one end of the transmission frame 1 is rotatably connected to two opposing guide plates 2 via an elastic hinge. The guide plates 2 are bent in shape. A fixed frame 3 is provided on the top of the transmission frame 1. A movable block 6 is slidably connected inside the fixed frame 3. A driving component is provided on one side of the fixed frame 3 to drive the movable block 6. A connecting plate 16 is connected to the bottom of the movable block 6. Both sides of the connecting plate 16 are connected to constraint plates 4 that fit against the outer side of the guide plate 2. The driving component drives the movable block 6 and the connecting plate 16 to move, thereby driving the constraint plates 4 to slide along the outer side of the guide plate 2 to change the distance between the ends of the two guide plates 2, thereby changing the opening size of the guide plate 2. This allows for the guidance of down comforters of different sizes, preventing the edges of the down comforters from getting stuck at the feed inlet and tearing.

[0030] Preferably, in this invention, the driving component includes a motor 7 installed inside the fixed frame 3, and a screw 5 located at the output end of the motor 7 and rotatably connected to the inner wall of the fixed frame 3. A movable block 6 is threadedly connected to the screw 5 and slidably engaged with the fixed frame 3. The motor 7 drives the screw 5 to rotate, thereby causing the movable block 6 to slide along the fixed frame 3.

[0031] Preferably, in this invention, multiple guide rollers 13 are fixed at equal intervals between the inner walls of both sides of the transmission frame 1 to press the down comforter onto the conveyor belt 15 and prevent slippage.

[0032] Preferably, the top of the transparent cover 10 is provided with an openable and closable movable window 11 for placing mites inside.

[0033] The embodiments described above are merely examples of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention.

Claims

1. A testing device for detecting the mite-proof performance of down comforters, the testing device comprising a conveyor belt (15) for conveying down comforters, characterized in that, The test equipment also includes a mite-proof performance testing component installed on the conveyor belt (15) mechanism. The mite-proof performance testing component includes a bracket (8), a transparent cover (10) movably connected below the bracket (8), and a cylinder (9) for driving the transparent cover (10) to move up and down. The bottom surface of the transparent cover (10) is open and parallel to the conveyor belt (15). Several partitions (12) are fixed at equal intervals inside the transparent cover (10). The partitions (12) are used to press the down comforter on the conveyor belt (15) together with the transparent cover (10) and divide the transparent cover (10) into several independent test chambers for placing mites. Each test chamber corresponds to a down comforter area of ​​equal area. The edge of the partition (12) that contacts the down comforter is provided with an electric heating tube, which is used to heat the down comforter at the contact point to prevent mites from passing through; The top of the transparent cover (10) is provided with an openable window (11) for inserting mites.

2. The testing equipment for detecting the mite-proof performance of down comforters according to claim 1, characterized in that, The test equipment also includes a transmission frame (1) and conveyor rollers (14) located at both ends of the transmission frame (1), with the conveyor belt (15) fitted onto the conveyor rollers (14).

3. The testing equipment for detecting the mite-proof performance of down comforters according to claim 2, characterized in that, The outer surface of the conveyor roller (14) is provided with annular grooves (17) near the two side edges, and the conveyor belt (15) is fixed with a limiting belt (18) that engages inside the annular grooves (17).

4. The testing equipment for detecting the mite-proof performance of down comforters according to claim 2, characterized in that, One end of the transmission frame (1) is rotatably connected to two opposing guide plates (2) via an elastic hinge. The guide plates (2) are bent. A fixed frame (3) is provided on the top of the transmission frame (1). A movable block (6) is slidably connected inside the fixed frame (3). A driving component is provided on one side of the fixed frame (3) to drive the movable block (6) to move. A connecting plate (16) is connected to the bottom of the movable block (6). Both sides of the connecting plate (16) are connected to constraint plates (4) that fit against the outer side of the guide plate (2). The driving component drives the movable block (6) and the connecting plate (16) to move, thereby driving the constraint plate (4) to slide along the outer side of the guide plate (2) to change the distance between the ends of the two guide plates (2).

5. The testing equipment for detecting the mite-proof performance of down comforters according to claim 4, characterized in that, The driving component includes a motor (7) installed inside the fixed frame (3) and a screw (5) located at the output end of the motor (7) and rotatably connected to the inner wall of the fixed frame (3). The movable block (6) is threadedly connected to the screw (5) and slidably engaged with the fixed frame (3).

6. The testing equipment for detecting the mite-proof performance of down comforters according to claim 2, characterized in that, Multiple guide rollers (13) are fixed at equal intervals between the inner walls of both sides of the transmission frame (1).

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