Integrally-formed sponge spring, bed net, forming mold and mattress

Abstract

The utility model relates to the technical field of spring beds, in particular to an integrally-formed sponge spring, a bed net, a forming die and a mattress, which comprises a spring, foam and a cloth cover, and the spring is formed by winding a steel wire and is of a spiral structure integrally; the foam wraps the spring to form a sponge spring after being foamed; and the cloth sleeve is sleeved on the sponge spring and completely wraps the sponge spring. According to the spring bed net, the sponge springs are manufactured in a mold foaming mode, then the sponge springs are bagged and processed into the spring bed net, the metal springs and the sponge are integrated, and the metal springs are wrapped by the sponge, so that the phenomena of friction and ring clamping between the metal springs are effectively reduced, and the service life of the spring bed net is prolonged. A spring bed net made of the sponge spring has a good mute effect, and a mattress made of the sponge spring mattress has better supporting performance and comfort.

Description

Technical Field

[0001] The utility model relates to the technical field of spring beds, in particular to an integrally formed sponge spring, a bed net, a forming die and a mattress. Background Art

[0002] At present, the springs used in existing spring mattresses are interlocking springs and individually pocketed springs. Among them, the individually pocketed springs are deeply loved by everyone because of their unique resilience and non-interference characteristics, and have become the main choice for mattress springs. However, the pocketed springs made by wrapping springs with materials such as non-woven fabrics and cotton fabrics are connected by gluing and sewing between springs, resulting in the springs being very close to each other. When the springs are deformed under force, the rings between adjacent springs will get stuck, causing abnormal noises. At the same time, since the non-woven fabrics, cotton fabrics and other materials used in the pocketed springs have no sound absorption effect, the spring mattresses produced using such pocketed springs all have problems of noise and abnormal noises during use, reducing the product experience. At present, generally, sound-absorbing materials are used as the cloth cover to produce pocketed springs in the market, such as non-woven fabrics in the silent series, soft cotton fabrics, etc., but the improvement effect is limited. Content of the Utility Model

[0003] The purpose of the utility model is to provide an integrally formed sponge spring, a bed net, a forming die and a mattress to solve the problems put forward in the above background art.

[0004] To achieve the above purpose, the utility model provides the following technical solutions:

[0005] An integrally formed sponge spring, comprising:

[0006] A spring, which is wound by a steel wire into a spiral structure as a whole;

[0007] A foam, which wraps the spring after foaming to form a sponge spring;

[0008] A cloth cover, which is sleeved on the sponge spring and completely wraps the sponge spring.

[0009] Further, the spring includes a diameter part I, a spring part I, a spring part II and a diameter part II arranged in sequence from top to bottom, and the spring part I and the spring part II are respectively composed of a plurality of spiral coils I and spiral coils II.

[0010] Further, both the diameter part I and the diameter part II are wound by steel wires into circular shapes, and the head of the steel wire on the diameter part I forms a node on the diameter part I, and the head of the steel wire at the diameter part II is recessed inward to form a gap with the diameter part II.

[0011] Further, the spring part II is in an olive shape, and the elastic force value of the spring part II is greater than that of the spring part I.

[0012] Furthermore, the diameters of several spiral coils Ⅰ are the same, and the spiral diameters of several spiral coils Ⅱ gradually decrease from top to bottom.

[0013] Furthermore, the bed net is composed of several bagged sponge springs arranged vertically and horizontally to form a cubic shape.

[0014] To achieve the above object, the present utility model also provides the following technical solutions:

[0015] A forming mold for manufacturing sponge springs includes a lower mold and an upper mold that can be covered and opened with the lower mold. After the upper mold and the lower mold are covered, the spring is located in the mold cavities of the upper mold and the lower mold.

[0016] Furthermore, one side of the upper mold and the lower mold is connected by a hinge, and the other end is locked and covered by a buckle.

[0017] Furthermore, two circular baffles are pre-placed in the mold cavity, and both ends of the spring are respectively abutted against the baffles.

[0018] To achieve the above object, the present utility model also provides the following technical solutions:

[0019] A mattress includes an integrally formed sponge spring bed net, comfort layers provided on the upper and lower end faces of the integrally formed sponge spring bed net, and side edge strips provided around the integrally formed sponge spring bed net. The comfort layers and the side edge strips are connected by webbing and wrap the integrally formed sponge spring bed net.

[0020] Compared with the prior art, the beneficial effects of the present utility model are:

[0021] An integrally formed sponge spring, a forming mold, and a bagged spring bed net are used to manufacture a sponge spring through a method of foaming with a mold, and then the sponge spring is put into a bag to process into a spring bed net. Its metal spring and sponge are integrated, and the metal spring is wrapped by the sponge, effectively reducing the friction and clamping phenomenon between metal springs, making the spring bed net processed with this sponge spring have a good sound insulation effect, and the mattress made with this sponge spring mattress has better support and comfort. Description of the Drawings

[0022] Figure 1 It is a schematic diagram of the forming mold of the present utility model being opened to put the spring in.

[0023] Figure 2 For the present utility model Figure 1 Schematic diagram of pouring foam raw material.

[0024] Figure 3 It is a schematic diagram of the forming mold being closed to manufacture a sponge spring after pouring the foam raw material in the present utility model.

[0025] Figure 4 Schematic diagram for taking out the sponge spring from the opening and forming mold of the present utility model.

[0026] Figure 5 Schematic diagram for completely taking out the sponge spring of the present utility model.

[0027] Figure 6 Schematic diagram for sleeving the sponge spring into the non-woven fabric bag of the present utility model.

[0028] Figure 7 Schematic diagram of the closed side view of the forming mold of the present utility model.

[0029] Figure 8 For the present utility model Figure 2 Another structural schematic diagram.

[0030] Figure 9 Schematic diagram of the strip structure made from the integrally formed sponge spring of the present utility model.

[0031] Figure 10 Schematic diagram of the spring mattress structure formed integrally with the sponge spring of the present utility model.

[0032] Figure 11 Schematic diagram of the mattress structure of the present utility model.

[0033] In the figure: 1 - spring, 1a - caliber part Ⅰ, 1b - spring part Ⅰ, 1c - spiral coil Ⅰ, 1d - spiral coil Ⅱ, 1e - caliber part Ⅱ, 1f - node, 1g - spring part Ⅱ, 2 - foam, 3 - cloth cover, 4 - upper mold, 5 - lower mold, 6 - mold cavity, 7 - buckle, 8 - hinge, 9 - baffle, 10 - comfort layer, 11 - webbing, 12 - side strip, 13 - rib, 14 - groove. Detailed implementation manners

[0034] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0035] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by terms such as "upper end", "lower end", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0036] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, terms such as "installed", "provided with", "sheathed with", "socketed", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0037] Please refer to Figures 1 to 11 , the present utility model provides a technical solution:

[0038] Aiming at the deficiencies in the prior art, the present utility model provides an integrally formed sponge spring, a forming mold and a pocketed spring mattress. The pocketed spring mattress uses the method of mold foaming to first put the spring formed by processing steel wires into the forming mold, and pour the foaming raw material: foam 2 into the forming mold. After the foam body is formed, an integrally formed sponge spring is obtained. The integrally formed sponge spring is processed into a single sponge spring strip as shown in Figure 9 by using a special pocketed spring machine, and then processed into a spring mattress as shown in Figure 10 by using a special adhesive machine or an ultrasonic machine.

[0039] Since the steel wire spring is entirely wrapped by the sponge (after the foam 2 is foamed), after being put into the bag, because the spring is wrapped with a layer of foam 2 material, the friction between the spring rings can be isolated, avoiding the phenomenon of stuck rings. At the same time, the foam 2 has good sound absorption effect and can effectively absorb the friction sound of the material when the pocketed spring is deformed under force. Therefore, the pocketed spring mattress produced by using this technology has good sound insulation effect.

[0040] An integrally formed sponge spring, a forming mold, and a pocketed spring mattress. The pocketed spring mattress is provided with the integrally formed sponge spring, which can effectively improve the supporting force of the spring on the basis of the original steel wire spring. At the same time, since there is a foam 2 in the pocketed spring and the foam 2 wraps the spring 1, the friction and clamping ring phenomenon between the metal springs are effectively reduced. The foam 2 of the metal spring is soft, so the overall comfort of the spring mattress made by this technology is greatly improved.

[0041] The spring 1 part is a wire spiral spring, and the foam 2 part is foamed by a forming mold. The foaming formula can be adjusted according to the actual needs of the product to change the density and hardness of the foam 2 part, so that the sponge spring has a sound insulation effect while presenting different soft and hard degrees, thus obtaining sponge springs with different soft and hard degrees. When producing this product, as Figures 1 to 6 shown, first put the formed (metal) spring 1 into the forming mold, pour the foaming raw material into the mold, then close the mold to form the foam 2 and the spring 1 to obtain the sponge spring, and then take out the sponge spring and install the cloth cover 3. The cloth cover 3 is a non-woven cloth cover or a linen cloth cover. This method uses the perfusion method, and the formed metal spring and the foam 2 are an integral whole.

[0042] The spring 1 includes a diameter part Ⅰ 1a, a spring part Ⅰ 1b, a spring part Ⅱ 1g, and a diameter part Ⅱ 1e arranged in sequence from top to bottom. The spring part Ⅰ 1b and the spring part Ⅱ 1g are respectively composed of a plurality of spiral coils Ⅰ 1c and spiral coils Ⅱ 1d. Both the diameter part Ⅰ 1a and the diameter part Ⅱ 1e are wound by steel wires into a circular shape, and the steel wire head on the diameter part Ⅰ 1a forms a knot 1f on the diameter part Ⅰ 1a. The steel wire head at the diameter part Ⅱ 1e is recessed inward and forms a gap with the diameter part Ⅱ 1e, and the gap value of this gap is between 1 mm and 10 mm. The spring part Ⅱ 1g is in an olive shape, and the elastic force value of the spring part Ⅱ 1g is greater than that of the spring part Ⅰ 1b. The diameters of the plurality of spiral coils Ⅰ 1c are the same, and the spiral diameters of the plurality of spiral coils Ⅱ 1d gradually decrease from top to bottom.

[0043] When the spring part Ⅰ 1b of the spring 1 is compressed by an external force, the spring 1 is in the direction of the spring force along its central axis, and this spring force direction is perpendicular to the horizontal plane, which can keep the overall uniform force, effectively improve the supporting force of the spring part Ⅰ 1b, and reduce the noise generated by friction during the deformation of the spring part Ⅰ 1b under force. The spring part Ⅱ 1g is a traditional independent pocketed spring structure, which is overall in an olive shape, and the diameters of the spiral coils Ⅱ 1d gradually decrease from top to bottom. When compressed by an external force, since the spring part Ⅱ 1g is individually stressed, it can provide different supporting forces for different body curves of the user, and at the same time has a strong anti-interference ability, and the overall resilience of the spring 1 is more stable.

[0044] An integrally formed sponge spring, a forming mold, and a pocketed spring mattress net include integrally formed pocketed sponge spring strips arranged horizontally and vertically. The pocketed sponge spring strips are provided with integrally formed sponge springs. The springs in the pocketed sponge spring strips are made into sponge springs by the method of mold foaming. The specific implementation method is as follows:

[0045] 1. Prepare non-woven fabric with a height of 51CM, a square gram weight of 60g, and a weight of not less than 30KG.

[0046] 2. Prepare an aluminum mold with an inner diameter of 72CM and a width of 18CM, and preheat the mold. The mold includes an upper mold 4 and a lower mold 5. The upper mold 4 and the lower mold 5 are hinged by a hinge 8, and the upper mold 4 can be opened.

[0047] 3. Prepare Polyol polyether polyol, MDI diphenylmethane diisocyanate, Silicone oil silicone oil, catalyst, mold release agent, and water.

[0048] 4. Prepare a metal helical spring with a height of 240mm, a middle diameter of 70mm, and a wire diameter of 1.8mm.

[0049] 5. Pour Polyol polyether polyol into the A foaming tank, and sequentially add Silicone oil silicone oil, water, and catalyst and stir well.

[0050] 6. Pour MDI diphenylmethane diisocyanate into the B foaming tank.

[0051] 7. Open the upper mold 4 of the aluminum mold and clean the inner surface of the mold.

[0052] 8. Place the mold on a horizontal tabletop, spray a mold release agent on the surface of the mold cavity 6 to prevent the foam from sticking to the mold.

[0053] 9. Snap the metal spring 1 into the inner cavity of the lower mold 5 of the mold. Two circular baffles 9 can be placed at both ends of the inner cavity of the lower mold 5 in advance, so as to prevent the spring 1 from running out of the mold.

[0054] 10. Set the discharge amount of the foaming gun head to 40g, and inject the A and B component mixed materials into the inner cavity of the lower mold 5 through the foaming gun head.

[0055] 11. Cover the upper mold 4 of the aluminum mold, and lock and close the mold through the lock 7. At this time, both the spring 1 and the foam 2 are in the mold cavity 6. After the foam 2 is foamed and cured inside the mold, an integrally formed sponge spring is obtained.

[0056] 12. Take out the integrally formed sponge spring, install the non-woven fabric with a height of 51CM on the pocketed spring machine, and use a special pocketed spring machine to install the sponge spring into the non-woven fabric bag to form a pocketed sponge spring strip.

[0057] 13. Stick the bagged sponge spring strips in a certain number of rows to form an integrally molded bagged sponge spring mattress net.

[0058] 14. On the upper and lower end faces of the integrally molded sponge spring mattress net, there is a comfort layer 10, and on the four sides of the integrally molded sponge spring mattress net, there is a side strip 12. The comfort layer 10 and the side strip 12 are connected by a webbing 11 and wrap the integrally molded sponge spring mattress net.

[0059] The comfort layer 10 is a quilted pad processed from cloth, foam, PP cotton or latex materials.

[0060] Such as Figure 8 shown, by setting a ring of convex strips 13 on the upper mold 4 and opening a ring of grooves 14 on the lower mold 5 that are adapted to be inserted into the convex strips 13, it is possible to better foam and cure the foam 2 inside the mold after closing, and avoid the raw material from overflowing from the closing gap between the upper mold 4 and the lower mold 5 during foaming.

[0061] Put the sponge spring into the bag by using a special bagged spring machine, or process it into a single sponge spring strip as shown in Figure 9 shown by sewing, and then process it into a spring mattress net as shown in Figure 10 shown by using a special adhesive machine or ultrasonic machine for bagged springs. The bagged spring mattress net is provided with an integrally molded sponge spring, which can effectively improve the supporting force of the spring on the basis of the original steel wire spring. At the same time, because there is sponge inside the bagged spring and the sponge has soft characteristics, the overall comfort and sound insulation effect of the spring mattress made by this technology have been greatly improved.

[0062] The integrally molded sponge spring is foamed by a mold. The hardness of the sponge spring can be adjusted by the diameter of the steel wire and the hardness of the foam 2. The bagged spring strips formed by putting the sponge spring into the bag are processed by a fully automatic bagged spring machine, which is a commonly used machine in the current industry and will not be described in detail here. At the same time, the sponge spring can also be bagged by manual sewing. The materials used for bagging can be non-woven fabric, non-woven cloth and cotton cloth, etc. The sponge spring strips can be connected and fixed by gluing, ultrasonic welding and manual threading methods, which are also common production processes in the current mattress net industry and will not be described one by one here.

[0063] For the present invention, the un-described parts are prior art.

[0064] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An integrally formed sponge spring, characterized in that: include: A spring (1), wherein the spring (1) is wound from a steel wire into an overall helical structure; Foam (2), wherein the foam (2) wraps the spring (1) after foaming to form a sponge spring; A cloth cover (3) is sleeved on the sponge spring and completely wraps the sponge spring.

2. The one-piece sponge spring according to claim 1, characterized in that: The spring (1) comprises a caliber portion I (1a), a spring portion I (1b), a spring portion II (1g) and a caliber portion II (1e) which are arranged in sequence from top to bottom, and the spring portion I (1b) and the spring portion II (1g) are respectively composed of a plurality of spiral coils I (1c) and a plurality of spiral coils II (1d).

3. The one-piece sponge spring according to claim 2, characterized in that: The aperture part I (1a) and the aperture part II (1e) are both wound with steel wire in a circular shape, and the head of the steel wire on the aperture part I (1a) forms a node (1f) on the aperture part I (1a), and the head of the steel wire at the aperture part II (1e) is recessed inward and forms a gap with the aperture part II (1e).

4. The one-piece sponge spring according to claim 2, characterized in that: The spring part II (1g) is olive-shaped, and the elastic force value of the spring part II (1g) is greater than the elastic force value of the spring part I (1b).

5. The one-piece sponge spring according to claim 2, characterized in that: The diameters of the plurality of spiral turns Ⅰ (1c) are the same, and the spiral diameters of the plurality of spiral turns Ⅱ (1d) decrease from top to bottom.

6. An integrally formed sponge spring bed net, characterized in that: The bed net is composed of a plurality of pockets of sponge springs as described in any one of claims 1 to 5, which are arranged vertically and horizontally to form a cube shape.

7. A forming die for manufacturing a sponge spring as claimed in any one of claims 1 to 5, characterized in that: The invention comprises a lower die (5) and an upper die (4) which covers and opens with the lower die (5); after the upper die (4) covers the lower die (5), the spring (1) is located in the die cavity (6) of the upper die (4) and the lower die (5).

8. The molding die according to claim 7, characterized in that: The upper mold (4) is connected to the lower mold (5) at one end by a hinge (8), and the other end is locked and covered by a lock buckle (7).

9. The molding die according to claim 7, characterized in that: The mold cavity (6) is pre-placed with two circular baffles (9), and the two ends of the spring (1) are respectively against the baffles (9).

10. A mattress, characterized in that: The invention comprises the one-piece sponge spring bed net as claimed in claim 6, a comfort layer (10) arranged on the upper and lower end surfaces of the one-piece sponge spring bed net, and side strips (12) arranged around the one-piece sponge spring bed net, wherein the comfort layer (10) and the side strips (12) are connected by a webbing (11) and wrap the one-piece sponge spring bed net.

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