A down-like filling and a production line thereof

Abstract

A kind of down-like filling and its production line relate to the field of home textiles.A kind of down-like filling is mixed by snowflake membrane piece in sheet shape and fiber ball in spherical shape, and the mass percentage of the snowflake membrane piece is 50%-70%.The down-like filling production line includes a shredder, a cotton ball machine and a mixer, the discharge port of the shredder is connected to one of the feed ports of the mixer, the discharge port of the cotton ball machine is connected to the other feed port of the mixer, plastic film is added to the feed port of the shredder, the plastic film is shredded into snowflake membrane pieces under the action of the shredder, cotton fibers are added to the feed port of the cotton ball machine, the cotton fibers are formed into fiber balls under the action of the cotton ball machine, and the snowflake membrane pieces and the fiber balls are mixed in the mixer.The pillow or quilt filled with the down-like filling has good resilience and is washable.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of home textiles, in particular to a fluffy filler. BACKGROUND

[0002] Down has high fluffiness, and a pillow or quilt filled with down has good resilience, which is favored by consumers, but is not resistant to washing. Therefore, a new type of filler that can replace down needs to be found. SUMMARY

[0003] The purpose of the present application is to provide a down-like filler to solve the above technical problems.

[0004] The purpose of the present application is also to provide a down-like filler production line to produce a down-like filler.

[0005] The technical problems solved by the present application can be implemented by the following technical solutions:

[0006] A down-like filler, characterized in that it is composed of flaky snowflake membrane pieces and spherical fiber balls, and the mass percentage of the snowflake membrane pieces is 50%-70%.

[0007] A down-like filler production line, characterized in that it comprises a shredder, a cotton ball machine, and a mixer, and the discharge outlet of the shredder is connected to one of the feed inlets of the mixer.

[0008] The discharge outlet of the cotton ball machine is connected to the other feed inlet of the mixer.

[0009] Plastic film is added to the feed inlet of the shredder, and the plastic film is shredded into snowflake membrane pieces under the action of the shredder. Cotton fibers are added to the feed inlet of the cotton ball machine, and the cotton fibers are formed into fiber balls under the action of the cotton ball machine. The snowflake membrane pieces and the fiber balls are mixed in the mixer. The main function of the fiber balls is to utilize their fluffiness.

[0010] Beneficial effects: a pillow or quilt filled with the down-like filler of the present application not only has good resilience, but also is resistant to washing. In addition, the present application has the characteristics of low allergenicity (safety, children can use it), and it is better for people with down allergy to use this product. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 Part of the structure of the knife roll is shown in the figure;

[0012] Figure 2 Part of the structure of the screen is shown in the figure;

[0013] Figure 3 Part of the structure of the shredder is shown in the figure. DETAILED DESCRIPTION

[0014] In order to make the technical means, creative features, purposes and effects of the present application easy to understand, the present application is further described below in combination with specific drawings.

[0015] Referring to Figure 1 , Figure 2 and Figure 3 , a down-like filling material is mixed by snowflake film pieces in sheet shape and fiber balls in spherical shape. The diameter of the fiber balls is preferably 5mm-15mm. The fiber balls are preferably pearl wool fiber balls. Preferably, the snowflake film pieces are polyethylene film pieces or polyolefin film pieces. The polyethylene film pieces are generally elastic, so they are generally used together with the fiber balls (fluffy). The polyolefin elastomer has good resilience, can generally be filled by 100%, and the recovery rate after washing is basically 98%, 99%.

[0016]

[0017] According to the present application, the pillow is filled according to the component ratio, and then the cleanliness and resilience performance after washing of the filled pillow are tested, and the test results are as follows:

[0018]

[0019]

[0020] Among them, the cleanliness (3 days) refers to that after using for 3 days under the same environment, washing on the 4th day, scoring according to the cleanliness of the water after washing, the higher the score, the cleaner. The cleanliness (30 days) refers to that after using for 30 days under the same environment, washing on the 31st day, scoring according to the cleanliness of the water after washing, the higher the score, the cleaner.

[0021] Among them, the resilience (washing 3 times) refers to that after repeated washing for 3 times, the resilience height of the pillow after washing is compared with the height of the original pillow, and the percentage is obtained. The resilience (washing 20 times) refers to that after repeated washing for 20 times, the resilience height of the pillow after washing is compared with the height of the original pillow, and the percentage is obtained.

[0022] According to the test results above, the mass percentage of the snowflake film pieces of the present application is preferably 50%-70%. Further preferably, it is 70%.

[0023] The down-like filling material production line comprises a shredder, a cotton ball machine and a mixer, the discharge port of the shredder is connected to one feeding port of the mixer, and the discharge port of the cotton ball machine is connected to another feeding port of the mixer. Plastic film is added to the feeding port of the shredder, and the plastic film is shredded into snowflake film pieces under the action of the shredder. Cotton fibers are added to the feeding port of the cotton ball machine, and the cotton fibers are formed into fiber balls under the action of the cotton ball machine. The snowflake film pieces and the fiber balls enter the mixer for mixing.

[0024] Regarding shredder

[0025] The shredder is provided with a rotating shaft, and a cutter roll 9 is mounted on the rotating shaft. The cutter roll 9 comprises a rotating roll and cutters. The rotating roll is provided with at least two groups of spiral-shaped clamping groove groups. The clamping grooves 1 in the same clamping groove group are arranged at equal intervals and staggered. The clamping groove 1 has an opening facing outward. A baffle 2 is arranged in the clamping groove 1. A rotating shaft 3 is fixed on the baffle 2. A rotating shaft hole is formed in the center of the cutter 4. The cutter 4 is inserted on the rotating shaft. The cutter 4 is in the shape of a square block. One side of the cutter extends outward from the clamping groove and serves as a cutting edge. The other side of the cutter faces downward and is clamped in the clamping groove. There is a gap between the outer side wall of the cutter and the inner side wall of the clamping groove, so that the cutter can swing around the rotating shaft. The side of the cutter that is located outside the clamping groove and faces upward serves as a cutting edge. Preferably, the inner side wall of the clamping groove is composed of a left side wall located on the left side and a right side wall located on the right side. The intersection line of the left side wall and the right side wall forms the bottom of the clamping groove. The center axis of the rotating shaft and the center axis of the rotating roll form an included angle of 85-89 degrees. The bottom of the clamping groove and the center axis of the rotating shaft are preferably parallel. This structure makes the cutting edge of the cutter form an included angle with the central axis of the rotating shaft. The cutting edge of the existing cutter is perpendicular to the center axis of the rotating roll. The present application makes the cutting edge of the cutter form an included angle with the perpendicular plane of the center axis of the rotating roll, so that the film can be more easily pierced and the film tearing direction can be more abundant, and the film can produce a certain degree of winding during the tearing process. The orientations of the clamping grooves in the two adjacent clamping groove groups can be different. That is, the clamping grooves in one clamping groove group are inclined to the left relative to the center axis of the rotating roll, and the clamping grooves in the adjacent clamping groove group are inclined to the right relative to the center axis of the rotating shaft. Thus, the difference in the cutting direction of the cutters in the two clamping groove groups is utilized to further enrich the tearing direction and improve the degree of winding. Preferably, the front end face of the cutter is in the shape of a concave curved surface. Thus, the four corners of the front end of the cutter are raised outward, facilitating the cutter to pierce the film using the corner. The rear end face of the cutter is in the shape of a convex curved surface. Thus, the contact area with the baffle is reduced, thereby reducing the swinging resistance of the cutter. It is particularly preferred that the curved surface of the front end face of the cutter is matched with the curved surface of the rear end face of the cutter, thereby facilitating stacking and allowing stacking on the same rotating shaft. The plastic film is torn into pieces by the cutter roll.

[0026] The shredder is also provided with a screen 8, which covers at least the discharge port of the shredder. The screen can be wound into a cylindrical shape, and the screen is provided with a gap opposite the feed port of the shredder, so that the plastic film can be put into the feed port of the shredder and pass through the gap to the knife roller. The screen is provided with holes, which can be round, z-shaped, fishbone-shaped, etc., and are preferably fishbone-shaped. The fishbone-shaped hole is composed of two mirror-symmetrical long strip-shaped sub-holes 7. The two sub-holes 7 form an included angle, which is preferably 20-80 degrees. The connection between the two sub-holes is provided with a connecting rib 6, and the end surface of the connecting rib 6 near the knife roller is provided with a spike 5. The screen can effectively limit the size of the material discharged from the discharge port of the shredder, thereby ensuring the performance of the final obtained feather-like filler. The diameter of the hole is preferably 20-40 mm. For a strip-shaped hole, the diameter here refers to the minimum distance between the two opposite edges, which is not less than 20 mm, and the maximum distance is not greater than 40 mm. The spike on the connecting rib is used to pierce the snowflake film. The orientation of the fishbone-shaped hole is preferably opposite to the rotation direction of the knife roller, thereby interfering with the snowflake film flowing out. The thickness of the screen at the connecting rib is less than that at other positions, and the top of the spike is exposed outside the hole. The spike is preferably at an included angle with the screen section where the spike is located, and is further preferably oriented opposite to the rotation direction of the knife roller, thereby more easily piercing into the snowflake film. During production, the knife roller rotates, tearing the plastic film into snowflake film pieces and centrifugally throwing the snowflake film pieces onto the screen. The snowflake film pieces that meet the size requirements pass through the screen and roll out of the discharge port of the shredder.

[0027] Preferably, the feed port of the shredder is opened on the side wall of the shredder, and the discharge port 10 of the shredder is opened on the bottom of the shredder. The bottom of the shredder can also be provided with an air inlet, which is connected to the air blower through a pipeline. The air inlet and the discharge port are located on the same side of the screen. The air blower is intermittently turned on, and when the air blower is turned on, the film fragments hooked on the screen will be blown up, so that this part of the film fragments can pass through the screen again or pass through the knife roller again, thereby avoiding the clogging of the screen and making the tearing angle of the film fragments more diverse. The air inlet is provided with a cover plate 11, one side of the cover plate 11 is connected to the bottom of the shredder through a rotating shaft, and the area of the cover plate is greater than that of the air inlet. Thus, when the air blower is turned off, the cover plate is tightly closed on the air inlet under the action of its own gravity and the impact force of the film fragments, thereby closing the air inlet and preventing the film fragments from entering the air inlet. When the air blower is turned on, the cover plate is turned up under the action of the wind blown by the air blower, thereby opening the air inlet. At this time, the cover plate plays a role in guiding the wind. Preferably, the rotating shaft is located on the front side of the cover plate, and the cover plate is located in front of the discharge port. Here, front refers to the front in the rotation direction of the knife roller.

[0028] The inner cavity of the shredder is preferably cylindrical. The diameter of the inner cavity is preferably 500-600 mm, and the diameter of the knife roller is preferably 400 mm.

[0029] About cotton ball machine

[0030] The cotton ball machine preferably adopts the multi-roller ball forming principle. In production, the roller is preferably uniformly rotated at a speed of 700-900 revolutions per minute. The cotton fiber added to the feed inlet of the cotton ball machine has a specification of 7D-15D, preferably 7D, and a length of 32mm-64mm, preferably 64mm. The size of the ball particles can be adjusted by controlling the ball forming time of the cotton ball machine. Preferably, the size of the fiber ball is 5mm-15mm.

[0031] About mixing machine

[0032] The mixing machine is provided with a mixing chamber. The bottom of the mixing chamber is in the shape of a circular arc, thereby facilitating the rolling of the materials in the mixing chamber. Scheme 1: a first feed inlet and a second feed inlet are opened on the side wall of the mixing chamber. The first feed inlet is used to add the snowflake membrane piece, and the second feed inlet is used to add the fiber ball. The first feed inlet and the second feed inlet are opposite to each other, thereby causing the snowflake membrane piece and the fiber ball to counterflow. Scheme 2: a third feed inlet is opened on the top of the mixing chamber. The third feed inlet is used to add the snowflake membrane piece and the fiber ball. Thereby, the mixing degree of the snowflake membrane piece and the fiber ball is improved by using the gravity of the two. Scheme 3: on the basis of scheme 2, an air inlet is further opened on the bottom of the mixing chamber, thereby increasing the mixing degree of the snowflake membrane piece and the fiber ball by blowing air into the air inlet. The air blown into the mixing chamber is preferably hot air, thereby using the hot air to make the surface of the snowflake membrane piece and the fiber ball soft, increasing the friction strength between the two, and thereby improving the uniformity of the mixing. An outlet is opened on the side wall of the mixing chamber. The outlet is connected to the filling machine through a pipeline.

[0033] The down-like filling production line further comprises a blow molding machine. The outlet of the blow molding machine is connected to the inlet of the shredding machine, and is further preferably connected through a conveyor belt. Plastic particles can be added to the blow molding machine to produce a plastic film. The conveyor belt can increase the distance between the two devices, so that the plastic film can be cooled, thereby avoiding the adhesion of the plastic film to the knife roller. A liquid nitrogen nozzle can be provided at the connection between the conveyor belt and the shredding machine, and the liquid nitrogen nozzle faces the shredding machine. Thereby, the temperature of the plastic film is further reduced by using liquid nitrogen, so that the plastic film becomes brittle, thereby being more easily shredded and being more evenly shredded and having more directions of shredding. In order to reduce costs, low-temperature air can be used instead of liquid nitrogen. The plastic film can also be cooled by providing a refrigeration sheet on the conveyor belt.

[0034] The above shows and describes the basic principles and main features of the present application and the advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A production line for down-like filling materials, characterized in that, It includes a shredder, a cotton ball machine, a mixer, and a blow molding machine, wherein the discharge port of the shredder is connected to one of the feed ports of the mixer; The outlet of the cotton ball machine is connected to another inlet of the mixer; Plastic film is added to the feed inlet of the shredder, and the plastic film is shredded into snowflake-like sheets by the shredder; cotton fibers are added to the feed inlet of the cotton ball machine, and the cotton fibers are formed into fiber balls by the cotton ball machine; the snowflake-like sheets and fiber balls enter the mixer for mixing. The shredder is equipped with a rotating shaft, on which a cutter roller is mounted. The cutter roller includes a rotating roller and a cutter. The rotating roller is provided with at least two sets of spiral grooves. The grooves in the same groove set are arranged at equal intervals and staggered. The groove openings face outwards. A baffle is provided in the groove. The rotating shaft is fixed on the baffle. A rotating shaft hole is opened at the center of the cutter. The cutter is inserted into the rotating shaft. The cutting edge of the cutter is at an angle to the central axis of the rotating shaft. The slots in two adjacent slot groups are oriented differently. That is, the slots in one slot group are tilted to the left relative to the centerline of the roller, and the slots in an adjacent slot group are tilted to the right relative to the centerline of the shaft. The front end face of the cutter is a concave curved surface, and the rear end face of the cutter is a convex curved surface. The shredder is also equipped with a screen that at least covers the discharge port of the shredder. The screen has mesh openings, each mesh opening consisting of two elongated and mirror-symmetrical sub-holes. The two sub-holes are at an angle of 20 to 80 degrees. A connecting rib is provided at the connection point of the two sub-holes. The end face of the connecting rib near the cutter roller has spikes. The spikes are at an angle to the screen cut surface where the spikes are located, and the direction of the spikes is opposite to the rotation direction of the cutter roller. The blow molding machine is connected to the shredder via a conveyor belt. A liquid nitrogen nozzle is provided at the connection between the conveyor belt and the shredder, and the liquid nitrogen nozzle faces the shredder.

2. The down-like filling production line according to claim 1, characterized in that, The cutting tool is square in shape, with one side facing upward and extending out of the slot, serving as the cutting edge. The other side of the cutting tool faces downward and is locked inside the slot. There is a gap between the outer wall of the cutting tool and the inner wall of the slot, allowing the cutting tool to swing around the axis.

3. The down-like filling production line according to claim 1, characterized in that, The mixer has a mixing chamber inside, and the bottom of the mixing chamber is arc-shaped.

4. The down-like filling production line according to claim 1, 2, or 3, characterized in that, The snowflake-like film is a polyethylene film, and the polyethylene film accounts for 60% of the total mass.

5. The down-like filling production line according to claim 1, 2, or 3, characterized in that, The diameter of the fiber balls is 5mm-15mm.

6. The down-like filling production line according to claim 1, 2, or 3, characterized in that, The fiber balls are made of pearl cotton fibers.

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