Sponge mattress rebound machine

Abstract

The invention relates to a sponge mattress springback machine which comprises a springback support. The springback platform is arranged on the springback support, a heating inner cavity is formed in the springback platform, an oil injection port communicated with the heating inner cavity is further formed in the springback platform, and the oil injection port is connected with a heating oil source through a pipeline; the springback support is arranged on the springback platform, the extrusion unit is arranged on the springback support and comprises an extrusion part located above the springback platform, and the extrusion part is driven by a lifting assembly to be close to or away from the springback platform and further driven by a translation assembly to reciprocate in the horizontal direction. According to the sponge mattress springback machine, through mutual cooperation of the springback support, the springback platform and the extrusion unit, an external force for assisting springback is applied to the sponge mattress by simulating a mode of manually pressing the sponge mattress while the sponge mattress is heated, so that the elasticity of the sponge mattress can be recovered.

Description

Technical Field

[0001] This invention relates to the field of foam mattress processing, and in particular to a foam mattress rebound machine. Background Technology

[0002] There are many types of foam mattresses, and foam mattresses made of different materials can provide different sleep effects. In high-resilience foam mattresses, high-resilience foam is added, so that the foam mattress will generate different support and rebound forces under different deformation states when compressed, thus improving the user's sleep quality.

[0003] However, during the processing of foam mattresses, in order to reduce storage space and improve warehouse utilization, the foam mattresses are often squeezed and rolled before storage. This process can easily lead to over-compression, which damages the pore structure of the foam, exceeding its elastic recovery limit and causing the foam to lose its resilience. In addition, the resilience of the foam is also affected by environmental factors such as temperature and humidity. Low temperatures can cause the molecular chains to "freeze," reducing elasticity. For example, memory foam may lose its resilience below 10°C. High humidity can cause moisture to clog the pores, increasing friction between molecular chains and hindering resilience. Summary of the Invention

[0004] This invention provides a foam mattress rebound machine capable of treating foam mattresses to restore their elasticity.

[0005] To solve the above-mentioned technical problems, the technical solution of the present invention is: a foam mattress rebound machine, the innovation of which lies in: including One spring-loaded support; A rebound platform is set on a rebound bracket. The rebound platform has a heating inner cavity. An oil injection port connected to the heating inner cavity is also set on the rebound platform. The oil injection port is connected to a heating oil source through a pipe. An extrusion unit is provided on a spring support. The extrusion unit includes an extruder located above the spring platform. The extruder is driven by a lifting assembly to move closer to or away from the spring platform. The extruder is also driven by a translation assembly to reciprocate along the horizontal direction.

[0006] Furthermore, the extrusion component includes an extrusion bracket, which includes a fixed bracket and a movable bracket. The movable bracket is located below the fixed bracket, and one side of the movable bracket is hinged to the fixed bracket. An extrusion roller is also installed on the movable bracket on the side away from the hinge between the movable bracket and the fixed bracket. The two sides of the extrusion roller are movably connected to the movable bracket through the cooperation of bearings. The lifting assembly includes a pair of lifting cylinders mounted side by side on a fixed bracket, and the piston rod of the lifting cylinder is connected to a movable bracket. One side of the movable bracket swings downward along the hinge point between the movable bracket and the fixed bracket under the drive of the weight of the extrusion roller itself, and is pulled upward along the hinge point between the movable bracket and the fixed bracket by the lifting cylinder, thereby realizing the up and down lifting of the extrusion roller. The translation component includes a pair of translation racks mounted on the springback bracket, and translation gears are provided on both sides of the fixed bracket. One of the translation gears is driven to rotate by a translation motor mounted on the fixed bracket. A pair of C-shaped guide channels with opposite openings are also provided on both sides of the springback bracket. Guide rollers that cooperate with the guide channels are also provided on both sides of the fixed bracket. The guide rollers include an inner roller placed inside the guide channel and an outer roller located on the outer wall of the guide channel.

[0007] Furthermore, auxiliary rollers are provided on both sides of the fixed bracket, located next to the inner roller, with the auxiliary rollers being horizontally positioned and the inner rollers being vertically positioned.

[0008] Furthermore, the initial thickness of the foam mattress during normal rebound is limited to δ. 初 The existing thickness of the foam mattress when it cannot rebound is δ 现 The foam mattress needs to be compressed to a depth of δ. 初 / 2, When the movable support is in a horizontal position, the vertical distance between the compression roller and the upper surface of the foam mattress is H1, and the vertical distance the compression roller presses down is H2, where H2 = H1 + δ 初 / 2-(δ 初 -δ 现 ).

[0009] Furthermore, an electric heating rod is also provided inside the rebound platform.

[0010] Furthermore, an oil storage tank is provided on one side of the rebound platform. One side of the oil storage tank is connected to the heating cavity of the rebound platform through a pipe, and the other side is connected to an exhaust pipe.

[0011] The advantages of this invention are as follows: the foam mattress rebound machine of this invention, through the cooperation of the rebound bracket, the rebound platform and the compression unit, provides an auxiliary rebound force to the foam mattress by simulating manual pressing of the foam mattress while heating it, so that the foam mattress can restore its elasticity.

[0012] The oil storage tank next to the rebound platform is designed because the heating oil will inevitably expand and generate hot air after being heated. Therefore, the oil storage tank is added to collect and temporarily store the expanded heating oil, and at the same time, it facilitates the discharge of hot air through the oil storage tank, so as to prevent the hot air from accumulating in the rebound platform and causing the rebound platform to deform, which would affect the smooth rebound of the foam mattress.

[0013] The heating oil in the rebound platform is heated and kept warm by setting up electric heating rods, so that the heating oil can be kept at the required temperature, which provides a good foundation for the subsequent rebound of the sponge.

[0014] The auxiliary rollers are designed to assist the inner rollers in rolling within the guide channel steel, preventing them from getting too close to the inner wall of the guide channel steel during movement, which could cause the inner rollers to jam and affect the smooth movement of the fixed bracket.

[0015] By controlling the downward pressure distance of the compression rollers, compression rollers of different weights can be replaced according to the different thicknesses of the foam mattress, so as to better compress the foam mattress, so that the compression depth of the foam mattress can meet the requirements and better achieve the rebound and recovery of the foam mattress. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the foam mattress rebound machine of the present invention.

[0017] Figure 2 for Figure 1 Enlarged schematic diagram of part A.

[0018] Figure 3 This is a front view of the foam mattress rebound machine of the present invention.

[0019] Figure 4 This is a side view of the foam mattress rebound machine of the present invention. Detailed Implementation

[0020] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided below.

[0021] like Figures 1-4 The illustrated foam mattress rebound machine includes A spring-loaded support 1 is a hollow rectangular frame structure composed of several horizontal and vertical bars connected together.

[0022] A rebound platform 2 is mounted on a rebound support 1. The rebound platform 2 has a heating chamber and an oil inlet 21 connected to the heating chamber. This oil inlet 21 is connected to a heating oil source via a pipe. By adding heating oil to the heating chamber within the rebound platform 2, the foam mattress subsequently laid on the rebound platform 2 is heated, allowing the mattress to maintain a high-temperature environment, which helps the foam mattress to rebound.

[0023] An electric heating rod is also installed inside the rebound platform 2. The electric heating rod heats and keeps the heating oil inside the rebound platform 2 at the required temperature, providing a good foundation for the subsequent rebound of the sponge.

[0024] An oil storage tank 22 is also provided on one side of the rebound platform 2. One side of the oil storage tank 22 is connected to the heating cavity of the rebound platform 2 via a pipe, and the other side of the oil storage tank 22 is connected to an exhaust pipe. The design of the oil storage tank 22 on the side of the rebound platform 2 is because the heating oil will inevitably expand after heating and generate hot air. Therefore, the oil storage tank 22 is added to collect and temporarily store the expanded heating oil, and at the same time, it facilitates the discharge of hot air through the oil storage tank 22, preventing hot air from accumulating in the rebound platform 2 and causing the rebound platform 2 to deform, which would affect the smooth rebound of the foam mattress.

[0025] An extrusion unit is provided on the spring support 1. The extrusion unit includes an extrusion member located above the spring platform 2. The extrusion member is driven by a lifting component to move closer to or away from the spring platform 2. The extrusion member is also driven by a translation component to reciprocate along the horizontal direction.

[0026] The extrusion component includes an extrusion bracket, which includes a fixed bracket 3 and a movable bracket 4. Both the fixed bracket 3 and the movable bracket 4 are rectangular brackets, and the movable bracket 4 is located below the fixed bracket 3. One side of the movable bracket 4 is hinged to the fixed bracket 3. An extrusion roller 5 is also installed on the side of the movable bracket 4 away from the hinge between the movable bracket 4 and the fixed bracket 3. Both sides of the extrusion roller 5 are movably connected to the movable bracket 3 through bearings.

[0027] The lifting assembly includes a pair of lifting cylinders 31 mounted side-by-side on a fixed bracket 3. The cylinder body of the lifting cylinder 31 is hinged to the fixed bracket 3, and the piston rod of the lifting cylinder 31 is hinged to a movable bracket 3. One side of the movable bracket 4 swings downward along the hinge point between the movable bracket 4 and the fixed bracket 3 under the influence of the weight of the extrusion roller 5. The movable bracket 4 is also pulled upward by the lifting cylinders along the hinge point between the movable bracket 4 and the fixed bracket 3, thereby achieving the up-and-down movement of the extrusion roller 5. In this embodiment, the lifting cylinder 31 is a pneumatic cylinder.

[0028] The translation assembly includes a pair of translation racks 32 mounted on the springback bracket 1, and translation gears 33 mounted on both sides of the fixed bracket 3. The two translation gears 33 are connected by a linkage rod to achieve synchronous and co-directional rotation. One of the translation gears 33 is driven to rotate by a translation motor 34 mounted on the fixed bracket 3, thereby realizing the rotation of both translation gears 33 on the translation racks 32. A pair of C-shaped guide channels 35 with opposite openings are also provided on both sides of the springback bracket 1. On both sides of the fixed bracket 3, guide rollers that cooperate with the guide channel steel 35 are also provided. The guide rollers include an inner roller 36 placed inside the guide channel steel 35 and an outer roller 37 located on the outer wall of the guide channel steel 35. The outer roller 37 is in contact with the lower outer wall of the guide channel steel 35, and the inner roller 36 is in contact with the lower inner wall of the guide channel steel 35. Both the inner roller 36 and the outer roller 37 are vertically arranged. The fixed bracket 3 can move stably on the rebound bracket 1 through the cooperation of the inner roller 36 and the outer roller 37.

[0029] Auxiliary rollers 38 are also provided on both sides of the fixed bracket 3, located next to the inner roller 36. The auxiliary rollers 38 are horizontally positioned and fit against the inner side wall of the guide channel steel 35, while a gap is left between the inner roller 36 and the inner side wall of the guide channel steel 35. The purpose of the auxiliary rollers 38 is to assist the inner roller 36 in rolling within the guide channel steel 35, preventing the inner roller 36 from getting too close to the inner side wall of the guide channel steel 35 during movement, which could cause the inner roller 36 to jam and affect the smooth movement of the fixed bracket 3.

[0030] The initial thickness of the foam mattress during normal rebound is defined as δ. 初 The existing thickness of the foam mattress when it cannot rebound is δ 现 The foam mattress needs to be compressed to a depth of δ. 初 / 2, When the movable support 4 is in a horizontal state, the vertical distance between the compression roller 5 and the upper surface of the foam mattress is H1, and the vertical distance that the compression roller 5 presses down is H2, where H2 = H1 + δ 初 / 2-(δ 初 -δ 现 By controlling the downward pressing distance of the compression roller 5, compression rollers 5 of different weights can be replaced according to different thicknesses of foam mattresses, so as to better compress the foam mattress, so that the compression depth of the foam mattress can meet the requirements and better achieve the rebound recovery of the foam mattress.

[0031] Working principle: During operation, firstly, based on the initial thickness of the foam mattress to be rebounded, a corresponding weight of compression roller 5 is selected. At this time, the movable support 4 is kept horizontal under the pull of the lifting cylinder 31. The foam mattress to be rebounded is placed on the rebound platform 2. Heating oil is injected into the heating cavity of the rebound platform 2 through the oil injection port 21. At the same time, the heating rod works to heat and keep the heating oil at a temperature of 80°C. Then, the lifting cylinder 31 stops supplying air. Under the gravity of the compression roller 5, the movable support 4 swings downward along the hinge point between the movable support 4 and the fixed support 3. The compression roller 5 applies pressure to the foam mattress on the rebound platform 2 and presses down the upper surface of the foam mattress. After applying pressure, the translation motor 34 works to drive the fixed support 3 to move horizontally along the guide channel steel 35, and also drives the movable support 4 and the compression roller 5 to move horizontally, so that the compression roller 5 rolls back and forth on the foam mattress, simulating the scene of manually pressing the foam mattress, until the foam mattress regains its elasticity.

[0032] When processing a foam mattress using the foam mattress rebound machine of this invention, the principle of foam rebound is based on the structural characteristics and physicochemical properties of its material. The core is the microscopic recovery ability of the elastomer and the aerodynamic effect of the pore structure.

[0033] The internal structure of a sponge consists of a polymer elastomer and a porous network structure. Elastomer molecular chains: For example, long-chain molecules in polyurethane can stretch or bend when subjected to force, storing elastic potential energy.

[0034] Porous structure: interconnected tiny air chambers (open-pore structure) or independent air chambers (closed-pore structure), where air is squeezed out when pressure is applied and re-enters after pressure is released.

[0035] The core mechanism of sponge rebound is: I. Entropic Elasticity of Molecular Chains Ordinary sponge (polyurethane): When compressed by external force, the polymer chains are forced to change from a disordered state to an ordered state (stretching or folding), and the entropy value decreases (the system's tendency to become disordered is suppressed). After the external force disappears, the molecular chains spontaneously restore their disordered state through the principle of entropy increase, releasing the stored elastic potential energy and causing the sponge to rebound.

[0036] II. Stomata and Air Flow Compression stage: The air in the pores is squeezed out, and the elastomer structure is compressed; Rebound phase: External air re-enters the air chamber through the perforated structure, helping the sponge to regain its volume (similar to an "air-absorbing spring").

[0037] Special rebound mechanisms for different materials Ordinary polyurethane foam: rapid rebound (in seconds), relying on molecular chain entropy elasticity + air flow.

[0038] Memory foam: slow rebound (minutes), viscoelastic molecular chains slowly rearrange + temperature-sensitive properties (hardens at low temperatures, softens at high temperatures).

[0039] High-density sponge: with tighter molecular chains, stronger elastic potential energy storage, and faster and longer rebound.

[0040] Key factors affecting rebound: 1) Temperature: High temperature: Molecular chain motion is active, and entropy elastic recovery is accelerated (memory foam rebounds significantly faster).

[0041] Low temperature: molecular chains "freeze" and elasticity decreases (e.g., memory foam may lose its resilience below 10°C).

[0042] 2) Humidity High humidity: Moisture clogs pores, increases friction between molecular chains, and hinders rebound; Dry environment: Good air circulation helps the pores to refill and recover.

[0043] 3) Compression limit Excessive compression (such as compressing to a completely flattened state) will damage the pore structure, exceeding the elastic recovery limit.

[0044] Based on the above mechanism, the foam mattress rebound machine of the present invention, through the cooperation of the rebound bracket, the rebound platform and the compression unit, provides an external force to assist the foam mattress in rebound by simulating manual pressing of the foam mattress while heating it, and provides the foam with a high temperature, dry and appropriate pressure environment so that the foam mattress can restore its elasticity.

[0045] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A foam mattress rebound machine, characterized in that: include One spring-loaded support; A rebound platform is set on a rebound bracket. The rebound platform has a heating inner cavity. An oil injection port connected to the heating inner cavity is also set on the rebound platform. The oil injection port is connected to a heating oil source through a pipe. An extrusion unit is provided on a spring support. The extrusion unit includes an extruder located above the spring platform. The extruder is driven by a lifting assembly to move closer to or away from the spring platform. The extruder is also driven by a translation assembly to reciprocate along the horizontal direction.

2. The foam mattress rebound machine according to claim 1, characterized in that: The extrusion component includes an extrusion bracket, which includes a fixed bracket and a movable bracket. The movable bracket is located below the fixed bracket, and one side of the movable bracket is hinged to the fixed bracket. An extrusion roller is also installed on the movable bracket on the side away from the hinge between the movable bracket and the fixed bracket. The two sides of the extrusion roller are movably connected to the movable bracket through bearings. The lifting assembly includes a pair of lifting cylinders mounted side by side on a fixed bracket, and the piston rod of the lifting cylinder is connected to a movable bracket. One side of the movable bracket swings downward along the hinge point between the movable bracket and the fixed bracket under the drive of the weight of the extrusion roller itself, and is pulled upward along the hinge point between the movable bracket and the fixed bracket by the lifting cylinder, thereby realizing the up and down lifting of the extrusion roller. The translation component includes a pair of translation racks mounted on the springback bracket, and translation gears are provided on both sides of the fixed bracket. One of the translation gears is driven to rotate by a translation motor mounted on the fixed bracket. A pair of C-shaped guide channels with opposite openings are also provided on both sides of the springback bracket. Guide rollers that cooperate with the guide channels are also provided on both sides of the fixed bracket. The guide rollers include an inner roller placed inside the guide channel and an outer roller located on the outer wall of the guide channel.

3. The foam mattress rebound machine according to claim 2, characterized in that: The fixed bracket is also provided with auxiliary rollers on both sides, located next to the inner rollers, with the auxiliary rollers being horizontally arranged and the inner rollers being vertically arranged.

4. The foam mattress rebound machine according to claim 2, characterized in that: The initial thickness of the foam mattress during normal rebound is defined as δ. 初 The existing thickness of the foam mattress when it cannot rebound is δ 现 The foam mattress needs to be compressed to a depth of δ. 初 / 2, When the movable support is in a horizontal position, the vertical distance between the compression roller and the upper surface of the foam mattress is H1, and the vertical distance the compression roller presses down is H2, where H2 = H1 + δ 初 / 2-(δ 初 -δ 现 ).

5. The foam mattress rebound machine according to claim 1, characterized in that: The rebound platform is also equipped with an electric heating rod.

6. The foam mattress rebound machine according to claim 1, characterized in that: An oil storage tank is also provided on one side of the rebound platform. One side of the oil storage tank is connected to the heating cavity of the rebound platform through a pipe, and the other side is connected to an exhaust pipe.

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