Quilt cover with bandage structure

Abstract

The quilt cover with the bandage structure comprises a first layer of cloth and a second layer of cloth, the first layer of cloth and the second layer of cloth are overlapped, one side of the first layer of cloth and one side of the second layer of cloth are not sealed, and the other sides of the first layer of cloth and the second layer of cloth are of a sealed structure. The utility model is characterized in that the unsealed sides of the first layer of cloth and the second layer of cloth are provided with bandages, and the bandages are formed by cutting the original cloth of the first layer of cloth and the second layer of cloth. And the notch of the bandage is U-shaped, V-shaped, L-shaped or concave. Original cloth of the quilt cover is used as materials of the binding bands, on one hand, the cloth can be saved, and on the other hand, the procedure of connecting the binding bands and the quilt cover can be omitted.

Description

[0001] This utility model is a divisional application of "a device for cutting and binding straps in the transverse direction of a duvet cover making machine and a duvet cover with a built-in binding strap structure" (application number: 2024214335334; application date: 2024-06-21). Technical Field

[0002] This utility model belongs to the field of duvet cover production equipment, and specifically relates to duvet covers with built-in tie-up structures. Background Technology

[0003] Currently, non-woven duvet covers are designed with ties at the entrance to facilitate securing the entrance after the duvet is placed inside, preventing the cover from slipping out during use. Duvet covers generally have four sides, with three sides sealed using ultrasonic heat sealing. Mature bed sheet and duvet cover production equipment is available on the market, typically with the tie-cutting device located on both longitudinal sides of the equipment (e.g., ...). Figure 6 (As shown). In use, two rolls of raw material are combined, with the width of the raw material equal to the length of a single duvet cover, and the cutting length equal to the width of a single duvet cover. Thus, given a fixed duvet cover size, the width of the raw material cannot be changed. Because the width of the initial raw material roll is much larger than the length of a single duvet cover, but less than the sum of the lengths of two duvet covers—just close to the sum of the duvet cover's length and width—the narrower roll cannot be used after the initial roll is cut into two, resulting in waste. In traditional duvet cover production, excess fabric at the edges is often considered waste and cut off, leading not only to a significant waste of usable material but also to increased production costs. How to effectively utilize these edge materials and transform them into part of the product has become an urgent problem to be solved. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide a duvet cover with a built-in tie structure. This utility model uses the original fabric of the duvet cover (the edge material that needs to be cut off in the prior art) as the material for the tie. On the one hand, it can save fabric, and on the other hand, it can save the process of connecting the tie to the duvet cover.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] The duvet cover with built-in tie structure includes a first layer of fabric and a second layer of fabric, which overlap. One side of the first and second layers of fabric is not sealed, while the other side is sealed. The first and second layers of fabric have a tie on the unsealed side, and the tie is cut from the original fabric of the first and second layers of fabric.

[0007] The present invention can achieve the following beneficial effects:

[0008] This invention utilizes the original fabric of the duvet cover (the edge material that needs to be cut off in the prior art) as the material for the binding straps. On the one hand, it can save fabric, and on the other hand, it can eliminate the process of connecting the binding straps to the duvet cover.

[0009] In existing technologies, when considering cutting the tie straps horizontally, the most obvious approach is to arrange the duvet covers lengthwise (with the tie straps of adjacent duvet covers spaced apart and facing the same direction). This requires a very high degree of overlap between the tie strap cutting point and the subsequent fabric cutting point, which is almost impossible to achieve with fabric. To achieve this, the tie straps would need to be cut wider to leave sufficient slack for the subsequent fabric cutting, and this slack would be removed as waste. This invention overcomes these technical shortcomings by employing a back-to-back arrangement (the tie straps of adjacent duvet covers are close together, essentially back-to-back), thus solving the aforementioned fabric cutting problem. Attached Figure Description

[0010] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0011] Figure 1 This is a front view of the duvet cover with built-in tie structure of this utility model (the tie is not untied);

[0012] Figure 2 This is the main view of the duvet cover with built-in tie structure of this utility model (the tie has been untied).

[0013] Figure 3 This is a side view of the duvet cover with built-in strap structure of this utility model;

[0014] Figure 4 This is a diagram of the existing encasing structure;

[0015] Figure 5 This is a schematic diagram of the transverse cutting and binding device of the duvet cover machine;

[0016] Figure 6 This is an equivalent diagram of the strap-cutting blade structure.

[0017] In the diagram: 1. Guide roller drive device; 2. Drive blade roller; 3. Strap cutting blade; 4. Coupling; 5. Bottom blade; 6. Frame; 7. Strap; 8. Ultrasonic welding wire; 9. First layer of fabric; 10. Second layer of fabric. Detailed Implementation

[0018] Preferred solutions include Figure 1 As shown, a duvet cover with a built-in tie-up structure includes a first layer of fabric and a second layer of fabric, which overlap. One side of each layer is not sealed, while the other sides are sealed. Tie-up straps are provided on the unsealed side of both layers, and these straps are cut from the original fabric of the first and second layers. This product primarily utilizes the existing fabric of the duvet cover as the material for the tie-up straps, which saves fabric and eliminates the need for connecting the straps to the duvet cover.

[0019] The cut shape of the strap can be U-shaped, V-shaped, L-shaped, or concave. In this embodiment, the cut shape is L-shaped, and the corner of the L-shape has a certain curvature.

[0020] In this embodiment, there are 3 pairs of straps.

[0021] The duvet cover has a rectangular structure, with ties placed along the short side.

[0022] The cut in the strap was not completely severed; the cut was a discontinuous break.

[0023] This duvet cover is processed by the transverse cutting and binding device of the duvet cover machine. The transverse cutting and binding device of the duvet cover machine includes a guide roller drive device 1, which is used to drive the cutter roller 2 to rotate. The cutter roller 2 is provided with a binding cutting blade 3, which is a U-shaped blade, a V-shaped blade, an L-shaped blade, or a concave blade.

[0024] The strap-cutting blade 3 is used to cut a slit at the edge of the cover without completely severing it, so that the uncut fabric can be used as a strap.

[0025] like Figure 5 As shown, the strap-cutting blade 3 has at least five different styles, and all styles of the strap-cutting blade 3 can be considered equivalent. The purpose of the strap-cutting blade 3 is to cut one or more slits along the edge of the garment, achieving the effect shown in the image. Figure 1 As shown, the cut duvet cover was not completely severed, forming a strap structure that connects to the duvet cover body. Pulling out this strap structure creates the binding structure, thus avoiding the need for additional binding straps.

[0026] Preferably, the cutting blade 3 of the strap is a discontinuous blade, used to cut the quilt into discontinuous breaks. This allows the strap to remain connected to the quilt body, and the strap can be manually pulled out when in use.

[0027] This discontinuous blade can be called a dotted-line blade. Based on this design, optimized features, such as changing the spacing or length of each dotted line, can alter the tearing force of the strap. For two adjacent duvet covers, the stretching of the strap before the material is cut will also differ. If there are too few connected dotted lines, the strap may be pulled apart or the two layers may be misaligned before reaching the cut point. Designs and attempts made to ensure the cutting position, horizontal sealing position, and staggered strap layering also fall within the protection scope of this utility model.

[0028] Furthermore, there are multiple cutter rollers 2, which are connected by couplings 4. This is used to cut multiple strap structures.

[0029] Furthermore, each cutter roller 2 is provided with a bottom cutter 5 below it. The bottom cutter 5 mainly cooperates with the cutter roller 2 to cut the cover. The bottom cutter 5 can be a rotating roller or a fixed flat anvil.

[0030] The working principle of this device is as follows:

[0031] Production process: Unwinding and laminating two layers of raw materials → Ultrasonic longitudinal heat sealing of both sides → Ultrasonic transverse heat sealing of the third side → Transverse cutting and binding → Longitudinal folding → Cutting → Transverse folding → Finished product packaging.

[0032] The raw material passes between the cutting roller 2 and the bottom blade 5, and the strap cutting blade 3 cuts the raw material into a U-shaped cut. The bottom blade can be a rotating roller or a fixed cutting board. The strap cutting blade 3 has notches of a certain width and spacing on its cutting edge. The raw material will not be cut off at the notches. The purpose is to maintain the existing position of the strap and prevent it from randomly scattering after being completely cut. When in use, it can be easily pulled off.

[0033] The strap cutting blade 3 is driven by a servo motor, and the power is transmitted to each strap cutting blade 3 through a coupling to achieve synchronous rotation. When the raw material reaches the position to be cut, the strap cutting blade 3 rotates one revolution to cut the strap, and then stops to wait for the next strap to be cut. The cut shape here is U-shaped, and towards the rear end, it will cut into two L-shapes from the middle of the U-shape, and at the same time, it will also cut two adjacent products apart.

[0034] The above embodiments are merely preferred technical solutions of this utility model and should not be considered as limitations on this utility model. The protection scope of this utility model should be the technical solution described in the claims, including equivalent substitutions of the technical features described in the claims. That is, equivalent substitutions and improvements within this scope are also within the protection scope of this utility model.

Claims

1. A sheet set with a binding structure, comprising a first layer of cloth and a second layer of cloth, the first layer of cloth and the second layer of cloth being overlapped, one side of the first layer of cloth and the second layer of cloth being not sealed, and the remaining sides being sealed structures; characterized in that: The first layer cloth and the second layer cloth are provided with a bandage at an unsealed side, and the bandage is cut from the first layer cloth and the second layer cloth.

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