Glue-free cloth bag spring core composed of Y-shaped weld joint spring strips

Abstract

The utility model belongs to the technical field of bagged spring manufacturing, and particularly relates to a non-glue cloth bag spring core body composed of Y-shaped weld joint spring strips, the non-glue cloth bag spring core body composed of the Y-shaped weld joint spring strips is formed by connecting a plurality of rows of cloth bag spring strings which are continuously bent, each row of cloth bag spring strings are connected with one another through welding, and the other row of cloth bag spring strings are connected with the other row of cloth bag spring strings through welding. A first welding seam formed by welding each row of cloth bag spring strings is of a linear structure; second welding seams formed by welding the adjacent bag chambers are of a Y-shaped structure, and notches are formed in the portions, between the adjacent bag chambers, of the non-woven fabric bag. The V-shaped notches are formed in the upper side and the lower side of the non-woven fabric bag between the bag chambers and matched with the first welding seam of the linear structure and the second welding seam of the Y-shaped structure, so that a core body is not affected when the electric bed is folded and bent up and down, the bed core structure is prevented from being damaged by operation of the electric bed, the appearance integrity of a product is guaranteed, and the product quality is improved. And the use experience of the user is improved.

Description

Technical Field

[0001] This utility model belongs to the field of bag spring manufacturing technology, specifically relating to a non-adhesive bag spring core composed of Y-shaped welded spring strips. Background Technology

[0002] With the rapid development of the electric bed market, more and more adhesive-free pocket spring cores are being used in this type of furniture. However, due to the frequent folding operations of electric beds, existing adhesive-free pocket spring cores exhibit poor flexibility, making it difficult to bend smoothly when the bed frame is folded up and down. This not only easily leads to damage to the bed core structure but also compromises the product's appearance and affects the user experience.

[0003] Therefore, this utility model is proposed. Utility Model Content

[0004] To solve the technical problems existing in the prior art, this utility model provides a glue-free bag spring core composed of Y-shaped welded spring strips.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A non-woven fabric bag spring core composed of Y-shaped welded spring strips is formed by continuously bending a single fabric bag spring string into multiple rows. Each row of fabric bag spring strings is connected to each other by welding. The first weld formed by welding between each row of fabric bag spring strings has a straight structure. Each fabric bag spring string consists of multiple springs disposed inside a non-woven fabric bag. The non-woven fabric bag has multiple compartments spaced apart along its length. The multiple springs are respectively disposed in the multiple compartments. Adjacent compartments are connected to each other by welding the non-woven fabric bags. The second weld formed by welding between adjacent compartments has a Y-shaped structure, and the non-woven fabric bags between adjacent compartments have notches.

[0007] The nonwoven bags between adjacent bag chambers are provided with second welds on both the top and bottom sides.

[0008] A gap is provided between the two second welds, and the first weld is disposed on the gap.

[0009] The nonwoven bags between adjacent bag chambers have notches on both the top and bottom sides.

[0010] The gap has a V-shaped structure.

[0011] The beneficial effects of this utility model are as follows:

[0012] This application sets V-shaped notches on the upper and lower sides of the non-woven bag between the bag chambers, and combines them with the first weld of the straight structure and the second weld of the Y-shaped structure, so that the core body will not be affected when the electric bed is folded up and down, avoiding damage to the core structure caused by the operation of the electric bed, ensuring the integrity of the product's appearance, and improving the user experience. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of a glue-free bag spring core composed of Y-shaped welded spring strips according to this utility model. Figure 1 ;

[0014] Figure 2 This is a schematic diagram of the structure of a glue-free bag spring core composed of Y-shaped welded spring strips according to this utility model. Figure 2 ;

[0015] Figure 3 This is a schematic diagram of the structure of a glue-free bag spring core composed of Y-shaped welded spring strips according to this utility model. Figure 3 ;

[0016] Figure 4 This is a schematic diagram of the structure of a glue-free bag spring core composed of Y-shaped welded spring strips according to this utility model. Figure 4 ;

[0017] Figure 5 for Figure 4 Enlarged view of the structure of section A;

[0018] The labels are as follows: 1. Bag spring string; 21. Spring; 22. Bag chamber; 3. First weld; 4. Second weld; 5. Notch; 6. Gap; 7. Non-woven bag. Detailed Implementation

[0019] The present invention will be further described below with reference to specific embodiments.

[0020] In the following description, all directional (or orientational) concepts involving up, down, left, right, front, and back refer to the position of the figure being described, and are intended to facilitate public understanding. Therefore, they should not be construed as a special limitation on the technical solution provided by this utility model.

[0021] like Figures 1-5As shown, a non-woven fabric bag spring core composed of Y-shaped welded spring strips is formed by continuously bending a single fabric bag spring string 1 into multiple rows. Each row of fabric bag spring strings 1 is connected to each other by welding. The first weld 3 formed by welding between each row of fabric bag spring strings 1 has a straight structure. The fabric bag spring string 1 consists of multiple springs 21 disposed inside a non-woven fabric bag 7. The non-woven fabric bag 7 has multiple bag chambers 22 spaced apart along its length. The multiple springs 21 are respectively disposed in the multiple bag chambers 22. Adjacent bag chambers 22 are connected to each other by welding the non-woven fabric bags 7. The second weld 4 formed by welding between adjacent bag chambers 22 has a Y-shaped structure, and the non-woven fabric bags 7 between adjacent bag chambers 22 are provided with notches 5.

[0022] The non-woven fabric bag 7 between adjacent bag chambers 22 has second welds 4 on both the top and bottom sides. A gap 6 is provided between the two second welds 4, and a first weld 3 is located on the gap 6. The non-woven fabric bag 7 between adjacent bag chambers 22 has notches 5 on both the top and bottom sides; the notches 5 are V-shaped. This design reduces stress concentration on the spring 21 and non-woven fabric bag 7 when the electric bed is folded and bent, making the entire core easier to bend and less prone to damage, thus improving the product's durability. Furthermore, the curved structure helps to distribute body pressure, providing more body-conforming support, thereby improving sleep quality and user comfort. It can adjust its shape according to the human body contour, providing appropriate support to different parts.

[0023] Specifically, when a single fabric spring string 1 is manufactured in the spring machine, the nonwoven fabric bags 7 between adjacent bag chambers already have Y-shaped second weld seams 4 and V-shaped notches 5 formed on their upper and lower sides. Then, the single fabric spring string 1 is continuously bent into multiple rows and connected. An ultrasonic welding device or an electrothermal welding device is then used to weld the nonwoven fabric bags 7 between adjacent rows of fabric spring strings 1, forming a first weld seam 3 in the gap 6 between the two second weld seams 4. This process forms a complete adhesive-free fabric spring core.

[0024] This application provides V-shaped notches 5 on the upper and lower sides of the non-woven bag 7 between the bag chambers, which, together with the first weld 3 of the straight structure and the second weld 4 of the Y-shaped structure, ensure that the non-woven bag spring core is not affected when the electric bed is folded up and down, thus avoiding damage to the bed core structure caused by the operation of the electric bed, ensuring the integrity of the product's appearance, and improving the user experience.

[0025] The above content is a further detailed description of the technical solution provided in conjunction with the preferred embodiments of this patent. It should not be considered that the specific implementation of this utility model is limited to the above description. For those skilled in the art to which this patent pertains, several simple deductions or substitutions can be made without departing from the concept of this patent, and all of these should be considered to fall within the protection scope of this patent.

Claims

1. A non-adhesive-free bag spring core composed of Y-shaped welded spring strips, characterized in that: It is composed of multiple rows of continuously bent single bag springs, with each row of bag springs connected to each other by welding. The first weld formed between each row of bag springs is a straight line. Each bag spring consists of multiple springs placed inside a non-woven bag. The non-woven bag has multiple compartments spaced apart along its length. The multiple springs are respectively placed in the multiple compartments. Adjacent compartments are connected to each other by welding. The second weld formed between adjacent compartments is a Y-shaped structure, and there is a notch on the non-woven bag between adjacent compartments.

2. The adhesive-free fabric bag spring core composed of Y-shaped welded spring strips as described in claim 1, characterized in that: The nonwoven bags between adjacent bag chambers are provided with second welds on both the top and bottom sides.

3. The adhesive-free fabric bag spring core composed of Y-shaped welded spring strips as described in claim 2, characterized in that: A gap is provided between the two second welds, and the first weld is disposed on the gap.

4. The adhesive-free fabric bag spring core composed of Y-shaped welded spring strips as described in claim 1, characterized in that: The nonwoven bags between adjacent bag chambers have notches on both the top and bottom sides.

5. A non-adhesive-free bag spring core composed of a Y-shaped welded spring strip as described in claim 1 or 4, characterized in that: The gap has a V-shaped structure.

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