Massage air bag inflating and deflating cushion for new energy automobile seat and injection molding device of massage air bag inflating and deflating cushion

Abstract

The utility model relates to the technical field of massage air cushions, and discloses a massage air bag inflation and deflation air cushion for a new energy automobile seat and an injection molding device of the massage air bag inflation and deflation air cushion. The massage air bag inflation and deflation air cushion comprises two bag pieces, each bag piece comprises an air bag, a gasket and a flange, the air outlet end of each air bag is connected with the inner circumference of the corresponding gasket, and each air bag is located in the center of the corresponding gasket; the outer circumferences of the gaskets are connected with the flanges, the two sides of the flanges protrude out of the two sides of the gaskets, the flanges of the two capsule pieces are bonded with each other, the air bags of the two capsule pieces, the gaskets and the flanges define a hollow buffering cavity, and the two air bags face the outer side. The massage air bag inflation and deflation cushion is simple in structure and light in material, automatic inflation and deflation can be achieved, the noise in the using process is lower than 42 dB, and the weight of the massage air bag inflation and deflation cushion is 450 g.

Description

Technical Field

[0001] The utility model relates to the technical field of massage air cushions, and in particular to a massage airbag inflation and deflation air cushion for new energy vehicle seats and an injection molding device thereof. Background Art

[0002] Air cushions, due to their light weight, excellent elasticity, and impact resistance, are widely used in home cushions, medical mattresses, sports protective gear, and packaging materials. Through the seat's built-in computer integrated board and airbag components, a series of precisely designed airbag circulation actions are performed to relieve muscle tension caused by long-term riding, quickly promoting blood circulation and effectively relieving fatigue.

[0003] The prior art discloses a leak-proof TPU airbag and its manufacturing method. The airbag manufacturing method first punches out the top layer material and the bottom layer material to form an upper airbag with a first airbag cavity and a lower airbag with a second airbag cavity, respectively. The upper and lower airbags are then bonded and pre-sealed to form an airbag embryo. The first airbag cavity is connected to the corresponding second airbag cavity to form an airbag cell. The airbag embryo is pre-set with at least one air inlet channel. After the airbag embryo is inflated, a secondary molding process is performed to separate the air inlet channel and the airbag channel to form the airbag. Each airbag cell is independent of each other. Because the airbag is a one-piece structure, if one of the airbag cells is damaged, the entire airbag must be replaced, which is costly and wasteful.

[0004] There is also an inflatable air cushion in the prior art, which is made by cutting thin sheets with a die, and hot pressing multiple thin sheets with a middle fixed column. It has a long cycle, a lot of materials, low output and high cost. Utility Model Content

[0005] The purpose of the present invention is to overcome the deficiencies in the above-mentioned prior art and to provide a massage airbag inflatable and deflation air cushion for new energy vehicle seats.

[0006] The utility model also provides an injection molding device for inflating and deflating a massage airbag cushion for a new energy vehicle seat.

[0007] The purpose of the utility model is achieved through the following technical solution: A massage airbag inflation and deflation cushion for new energy vehicle seats includes two bladder sheets, the bladder sheets include an airbag, a gasket and a flange, the air outlet end of the airbag is connected to the inner circumference of the gasket, the outer circumference of the gasket is connected to the flange, both sides of the flange protrude from both sides of the gasket, the two airbags are both facing outward, the flanges of the two bladder sheets are bonded to each other, and the airbags, gaskets and flanges of the two bladder sheets form a hollow buffer cavity. The massage airbag inflation and deflation cushion has a simple structure, light weight, low cost, low noise during use, long service life, can be replaced individually, and reduces maintenance costs.

[0008] A more preferred option is to form the airbag, the gasket and the flange into one piece, thereby reducing the production process, simplifying the process and lowering the production cost.

[0009] A better choice is that the airbag, the gasket and the flange are all made of TPU. Made of TPU, it is light in weight and has good sealing performance.

[0010] A more preferred option is that the airbag is a hollow semicircular structure.

[0011] A more preferred option is that the gasket is an annular structure.

[0012] An injection molding device for a massage airbag inflatable and deflable air cushion for a new energy vehicle seat includes a front mold, a back mold, an upper core, a lower core, and an ejector mold. The front mold is slidably connected to the back mold via a guide shaft. The upper core is installed at the bottom of the front mold, the lower core is installed at the top of the back mold, the ejector mold is located in the middle of the lower core, and the ejector mold is connected to the ejector pin of the back mold. The upper core, the lower core, and the ejector mold form a capsule mold, which is used to make the massage airbag inflatable and deflable air cushion for a new energy vehicle seat. This injection molding mold can quickly generate capsules, reduce the amount of raw materials used, save costs, improve production efficiency, and has high requirements for operator proficiency.

[0013] A more preferred option is that both the front mold and the back mold are provided with coolant inlet and outlet holes. The coolant inlet and outlet holes facilitate the flow of coolant into the injection molding device, shortening the cooling time of the injection molding device and improving production efficiency.

[0014] The present invention has the following advantages and beneficial effects compared to the prior art:

[0015] 1. The utility model is a massage airbag inflatable and deflation cushion for new energy vehicle seats. It has a simple structure, light material, can realize automatic inflation and deflation, and the noise during use is lower than 42dB. It weighs 450g and has a service life of more than 500,000 times. It can be replaced individually to reduce maintenance costs.

[0016] 2. The utility model provides an injection molding device for inflating and defusing massage airbag cushions for new energy vehicle seats. The device has a simple structure, reduces the loss of raw materials, and can replace the core mold. It is suitable for the production of inflatable and defusing air cushions of different sizes, reduces the proficiency requirements of operators, and improves the product switching speed of the injection molding machine, thereby reducing production costs. It can quickly produce inflatable and defusing massage airbag cushions and improve production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the utility model for inflating and deflating a massage airbag cushion for a new energy vehicle seat;

[0018] Figure 2 This is a schematic diagram of a capsule for inflating and defusing an air cushion of a massage airbag used in a new energy vehicle seat according to the present invention;

[0019] Figure 3 This is a schematic diagram of a capsule for inflating and defusing an air cushion of a massage airbag used in a new energy vehicle seat according to the present invention;

[0020] Figure 4 This is a schematic diagram of an injection molding device for inflating and deflating a massage airbag cushion for a new energy vehicle seat according to the present invention;

[0021] Figure 5 This is a schematic diagram of the front mold and upper core of an injection molding device for inflating and deflating a massage airbag cushion for a new energy vehicle seat;

[0022] Figure 6 This is a schematic diagram of the rear mold and lower core of an injection molding device for inflating and deflating a massage airbag cushion for a new energy vehicle seat according to the utility model;

[0023] Figure 7 This is a schematic diagram of a core mold of an injection molding device for inflating and deflating a massage airbag cushion for a new energy vehicle seat according to the present invention;

[0024] Figure 8 This is a schematic diagram of a core mold of an injection molding device for inflating and deflating a massage airbag cushion for a new energy vehicle seat according to the present invention;

[0025] Figure 9 This is a cross-sectional view of a core mold of an injection molding device for inflating and deflating a massage airbag cushion for a new energy vehicle seat according to the present invention;

[0026] Figure 10 This is a flow chart of a method for preparing a massage airbag inflation and deflation cushion for a new energy vehicle seat according to the present invention;

[0027] The markings of the components in the accompanying drawings are as follows: 1-massage airbag inflation and deflation cushion; 11-capsule; 101-airbag; 102-gasket; 103-flange; 104-semicircular groove; 2-outer mold; 201-front mold; 202-back mold; 203-injection hole; 204-guide shaft; 205-cooling liquid inlet and outlet holes; 206-push rod; 207-spring; 3-core mold; 301-upper core; 302-lower core; 303-ejector mold; 3031-ejector pin mounting hole; 304-core injection hole. DETAILED DESCRIPTION

[0028] The utility model object of the utility model is further described in detail below with reference to the accompanying drawings and specific embodiments. The embodiments cannot be described one by one here, but the implementation methods of the utility model are not limited to the following embodiments.

[0029] Example 1

[0030] like Figure 1-3 As shown, a massage airbag inflation and deflation cushion 1 for new energy vehicle seats includes two capsules 11, which are arranged in a mirror-symmetrical manner. The airbags 101 of the two capsules 11 are both facing outwards. The edges of the two capsules 11 are bonded to each other to form a hollow buffer cavity, and the hollow buffer cavity is filled with air. Each capsule 11 includes an airbag 101, a gasket 102 and a flange 103. The airbag 101 is a hollow semicircular structure, and a semicircular groove 104 is provided on the airbag 101 for accommodating air. The gasket 102 is an annular structure, and the flange 103 is also an annular structure. The periphery of the air outlet end of the semicircular groove 104 is connected to the inner circumference of the gasket 102, that is, the airbag 101 is located at the center of the gasket 102. The outer circumference of the gasket 102 is connected to the flange 103. Both sides of the flange 103 protrude from both sides of the gasket 102, that is, the thickness of the flange 103 is greater than the thickness of the gasket 102. The airbag 101, gasket 102 and flange 103 are integrally formed using an injection molding device.

[0031] The airbag 11 is injection-molded from TPU and is lightweight, weighing approximately 225g. It is quiet and friction-resistant during use, and is used to form the massage airbag inflation and deflation cushion 1, providing a cushioning effect. The airbag 101 is made of TPU and stores most of the air, providing a cushioning effect. The gasket 102, which holds a small amount of air, increases the force applied to the massage airbag 101 during inflation and deflation, also providing a cushioning effect. The flange 103, also made of TPU, connects the two gaskets 102, creating a gap between them.

[0032] like Figure 4-9 As shown, an injection molding device for a massage airbag inflatable and deflation air cushion 1 for a new energy vehicle seat includes an outer mold 2 and a core mold 3. The outer mold 2 includes a front mold 201, four guide shafts 204 and a back mold 202. The core mold 3 includes an upper core 301, a lower core 302 and an ejector mold 303. The front mold 201 is connected to the back mold 202 by four guide shafts 204 so as to slide up and down. The upper core 301 is installed at the bottom center of the front mold 201, and the lower core 302 is installed at the top center of the back mold 202. A mounting hole is provided in the middle of the lower core 302, and the ejector mold 303 can slide up and down in the mounting hole. The ejector mold 303 is connected to the ejector pin of the back mold 202. The upper core 301, the lower core 302 and the ejector mold 303 form a capsule sheet 11 mold. Cooling pipes are provided in both the front mold 201 and the back mold 202, which are not shown in the figure and belong to the prior art. The two ends of the cooling pipe are respectively communicated with the two coolant inlet and outlet holes 205. An ejector pin mounting hole 3031 is provided in the center of the ejector mold in the same axial direction as that of the ejector mold. The ejector pin mounting hole 3031 is used to connect with the ejector pin of the rear mold.

[0033] The outer mold 2 can be purchased on the existing market and is used to inject liquefied TPU into the core mold 3 and cool the core mold 3. The front mold 201 is used to fix the upper core 301 and introduce liquefied TPU into the upper core 301. The guide shaft 204 allows the front mold 201 and the rear mold 202 to slide relative to each other and accurately align the front mold 201 and the rear mold 202. The rear mold 202 is used to install the lower core 302, cool the lower core 302, and automatically push the front mold 201 and the ejector mold 303 upward. The core mold 3 is used to inject liquefied TPU and form the injection mold for the capsule 11; the upper core 301 is used to form the injection mold for the top of the capsule 11. The lower core 302 is used to form the injection mold for the bottom of the capsule 11; the ejector mold 303 is used to form the injection mold for the bottom of the airbag 101 of the capsule 11 and eject the capsule 11 from the lower core 302.

[0034] like Figure 10 As shown, a method for preparing a massage airbag inflation and deflation cushion for a new energy vehicle seat comprises the following steps:

[0035] S1. Two caplets 11 are obtained by injection molding using a liquefied TPU through an injection molding device. Step S1 specifically includes the following steps:

[0036] S101, installing the upper core 301 on the bottom of the front mold 201, the core injection hole 304 of the upper core 301 is connected to the injection hole 203 of the front mold 201, installing the lower core 302 on the top of the back mold 202, installing the ejector mold 303 in the middle of the lower core 302, and connecting the ejector mold 303 to the back mold 202. The upper core 301, the lower core 302 and the ejector mold 303 form an injection mold;

[0037] S102. The injection molding device from step S101 is installed on an injection molding machine. The injection molding machine presses the injection molding device, closes the front mold 201 and the back mold 202, and closes the upper core 301, the lower core 302, and the ejector mold 303 to form an injection cavity. The injection molding machine injects liquefied TPU through the injection hole 203 of the front mold 201. The TPU flows into the injection cavity through the core injection hole 304 until the injection cavity is completely filled with TPU. TPU (Thermoplastic Polyurethane) is a polymer material between rubber and plastic. The temperature range of the liquefied TPU in step S102 is up to 180°C.

[0038] S103: Constant-temperature coolant enters and exits the injection molding device through the coolant inlet and outlet 205. The constant-temperature coolant cools the core mold 3 of the injection molding device until the TPU is completely solidified and cooled to room temperature, thereby forming the capsule 11. The injection molding machine can be purchased on the market, and the coolant used to cool the TPU can also be purchased on the market.

[0039] S104, the injection molding machine releases the front mold 201 and the rear mold 202, and the front mold 201 no longer presses the push rod 206 of the rear mold 202. Under the action of the spring 207 of the rear mold 202, the upper core 301 and the lower core 302 are separated. At the same time, the spring 207 drives the ejector pin of the rear mold 202 to push upward, and the ejector pin drives the ejection mold 303 to move upward, thereby ejecting the capsule 11 from the lower core 302.

[0040] S2. Arrange the two capsule sheets 11 from step S1 in mirror-image symmetry, with the air pockets 101 of both capsule sheets 11 facing outward. Lay the flanges 103 of the two capsule sheets 11 together using a high-frequency press. The press is operated at a current of 1.2A for 40 seconds at a temperature of 180°C. The edges of the two capsule sheets 11 are bonded together to form an air-filled balloon embryo. An inflation hole is reserved at the flange 103 of the balloon embryo. An air compressor is used to inflate the balloon embryo from step S2 through the inflation hole. Once inflation is complete, the inflation hole is sealed. This embodiment requires only air injection, which reduces production costs.

[0041] S3. The airbag blank from step S2 is then subjected to a secondary hot pressing process using a high-frequency machine. The current of the high-frequency machine is 1.2A, the current is applied for 40 seconds, and the temperature is 180°C. This allows the flanges 103 of the two obtained airbag sheets 11 to be sealed and reinforced for a secondary time, thereby obtaining the massage airbag inflatable and deflated air cushion 1.

[0042] Example 2

[0043] Another method for preparing a massage airbag inflation and deflation cushion for a new energy vehicle seat in this embodiment includes the following steps:

[0044] S1. Two caplets 11 are obtained by injection molding using a liquefied TPU through an injection molding device. Step S1 specifically includes the following steps:

[0045] S101, installing the upper core 301 on the bottom of the front mold 201, the core injection hole 304 of the upper core 301 is connected to the injection hole 203 of the front mold 201, installing the lower core 302 on the top of the back mold 202, installing the ejector mold 303 in the middle of the lower core 302, and connecting the ejector mold 303 to the back mold 202. The upper core 301, the lower core 302 and the ejector mold 303 form an injection mold;

[0046] S102. The injection molding device from step S101 is installed on an injection molding machine. The injection molding machine presses the injection molding device, closes the front mold 201 and the back mold 202, and closes the upper core 301, the lower core 302, and the ejector mold 303 to form an injection cavity. The injection molding machine injects liquefied TPU through the injection hole 203 of the front mold 201. The TPU flows into the injection cavity through the core injection hole 304 until the injection cavity is completely filled with TPU. TPU (Thermoplastic Polyurethane) is a polymer material between rubber and plastic. The temperature range of the liquefied TPU in step S102 is up to 230°C.

[0047] S103: Constant-temperature coolant enters and exits the injection molding device through the coolant inlet and outlet 205. The constant-temperature coolant cools the core mold 3 of the injection molding device until the TPU is completely solidified and cooled to room temperature, thereby forming the capsule 11. The injection molding machine can be purchased on the market, and the coolant used to cool the TPU can also be purchased on the market.

[0048] S104, the injection molding machine releases the front mold 201 and the rear mold 202, and the front mold 201 no longer presses the push rod 206 of the rear mold 202. Under the action of the spring 207 of the rear mold 202, the upper core 301 and the lower core 302 are separated. At the same time, the spring 207 drives the ejector pin of the rear mold 202 to push upward, and the ejector pin drives the ejection mold 303 to move upward, thereby ejecting the capsule 11 from the lower core 302.

[0049] S2. Fill the two capsules 11 from step S1 with foam material, then align the flanges 103 of the two capsules 11, with the airbags 101 of the two capsules 11 facing outward. The two aligned capsules 11 are then heat-pressed using a high-frequency machine to obtain an airbag embryo. The high-frequency machine operates at a current of 1.2A, a current-on time of 40s, and a temperature of 210°C. This embodiment uses foam material instead of partially filling with air, allowing it to remain usable even in the event of a leak. The foam material is made of EUDE, FOAM, D3O, SAS-TEC, or PORON to enhance the cushioning effect of the airbag. Different foam materials are selected based on specific needs.

[0050] S201 , placing a capsule 11 on a fixture of a high-frequency machine, adsorbing the capsule 11 on the fixture of the high-frequency machine, and pouring foaming material on the capsule 1 .

[0051] S202: First, another capsule sheet 11 is placed on top of the capsule sheet 11 filled with foam material, and aligned with the capsule sheet 11 filled with foam material. The two capsule sheets are heat-sealed with a high-frequency machine to form an air-filled balloon embryo. Because the foam material is located inside, it supports the two capsule sheets 11. The presence of foam material and air in the balloon embryo eliminates the need for additional inflation, reducing the number of inflation steps. The two capsule sheets 11 also protect the foam material.

[0052] S3. The airbag blank from step S2 is then sealed again using a high-frequency machine with a current of 1.2A, a current-on time of 40s, and a temperature of 180°C. The flanges 103 of the two obtained capsule sheets 11 are sealed and reinforced again to obtain the massage airbag inflatable and deflated cushion 1.

[0053] Example 3

[0054] like Figure 10 As shown, a method for preparing a massage airbag inflation and deflation cushion for a new energy vehicle seat comprises the following steps:

[0055] S1. Two caplets 11 are obtained by injection molding using a liquefied TPU through an injection molding device. Step S1 specifically includes the following steps:

[0056] S101, installing the upper core 301 on the bottom of the front mold 201, the core injection hole 304 of the upper core 301 is connected to the injection hole 203 of the front mold 201, installing the lower core 302 on the top of the back mold 202, installing the ejector mold 303 in the middle of the lower core 302, and connecting the ejector mold 303 to the back mold 202. The upper core 301, the lower core 302 and the ejector mold 303 form an injection mold;

[0057] S102. The injection molding device from step S101 is installed on an injection molding machine. The machine presses the injection molding device, closes the front mold 201 and the back mold 202, and closes the upper core 301, the lower core 302, and the ejector mold 303 to form an injection cavity. The injection molding machine injects liquefied TPU through the injection hole 203 of the front mold 201. The TPU flows into the injection cavity through the core injection hole 304 until the injection cavity is completely filled with TPU. TPU (Thermoplastic Polyurethane) is a polymer material between rubber and plastic. The temperature range of the liquefied TPU in step S102 is up to 210°C.

[0058] S103: Constant-temperature coolant enters and exits the injection molding device through the coolant inlet and outlet 205. The constant-temperature coolant cools the core mold 3 of the injection molding device until the TPU is completely solidified and cooled to room temperature, thereby forming the capsule 11. The injection molding machine can be purchased on the market, and the coolant used to cool the TPU can also be purchased on the market.

[0059] S104, the injection molding machine releases the front mold 201 and the rear mold 202, and the front mold 201 no longer presses the push rod 206 of the rear mold 202. Under the action of the spring 207 of the rear mold 202, the upper core 301 and the lower core 302 are separated. At the same time, the spring 207 drives the ejector pin of the rear mold 202 to push upward, and the ejector pin drives the ejection mold 303 to move upward, thereby ejecting the capsule 11 from the lower core 302.

[0060] S2. Arrange the two capsule sheets 11 from step S1 in mirror-image symmetry, with the air pockets 101 of both capsule sheets 11 facing outward. Lay the flanges 103 of the two capsule sheets 11 together using a high-frequency press. The pressurization current is 1.2A for 40 seconds at a temperature of 210°C. The edges of the two capsule sheets 11 are bonded together to form an air-filled embryo. An inflation hole is reserved at the flange 103 of the embryo. An air compressor is used to inflate the embryo from step S2 through the inflation hole. Once inflation is complete, the inflation hole is sealed. This embodiment requires only air injection, which reduces production costs.

[0061] S3. The airbag blank from step S2 is then subjected to a secondary hot pressing process using a high-frequency machine. The current of the high-frequency machine is 1.2A, the current is applied for 40 seconds, and the temperature is 210°C. This allows the flanges 103 of the two obtained airbag sheets 11 to be sealed and reinforced for a secondary time, thereby obtaining the massage airbag inflatable and deflated air cushion 1.

[0062] The above specific implementation methods are preferred embodiments of the present invention and cannot limit the present invention. Any other changes or other equivalent replacement methods that do not deviate from the technical solution of the present invention are included in the scope of protection of the present invention.

Claims

1. A massage airbag inflation and deflation cushion for new energy vehicle seats, characterized by: The invention comprises two capsule sheets, each of which comprises an airbag, a gasket and a flange. The air outlet end of the airbag is connected to the inner circumference of the gasket, the outer circumference of the gasket is connected to the flange, both sides of the flange protrude from both sides of the gasket, both airbags face outward, the flanges of the two capsule sheets are bonded to each other, and the airbags, gaskets and flanges of the two capsule sheets form a hollow buffer cavity.

2. The massage airbag inflation and deflation cushion for new energy vehicle seats according to claim 1, characterized in that: The airbag, the gasket and the flange are integrally formed.

3. The massage airbag inflation and deflation cushion for new energy vehicle seats according to claim 2, characterized in that: The airbag, the gasket and the flange are all made of TPU.

4. The massage airbag inflation and deflation cushion for new energy vehicle seats according to claim 1, characterized in that: The airbag is a hollow semicircular structure.

5. The massage airbag inflation and deflation cushion for new energy vehicle seats according to claim 1, characterized in that: The gasket is an annular structure.

6. An injection molding device for inflating and deflating a massage airbag cushion for a new energy vehicle seat, characterized in that: It includes a front mold, a rear mold, an upper core, a lower core and an ejector mold. The front mold is slidably connected to the rear mold through a guide shaft. The upper core is installed at the bottom of the front mold, the lower core is installed at the top of the rear mold, and the ejector mold is located in the middle of the lower core. The ejector mold is connected to the ejector pin of the rear mold. The upper core, the lower core and the ejector mold form a capsule mold. The capsule mold is used to make a massage airbag inflatable and deflation air cushion for new energy vehicle seats as described in any one of claims 1 to 5.

7. The injection molding device for inflating and deflating a massage airbag cushion for a new energy vehicle seat according to claim 6, characterized in that: The front mold and the rear mold are both provided with cooling liquid inlet and outlet holes.

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