WO2021212963A1 - 一种换气气囊及其制备方法、模具 - Google Patents

一种换气气囊及其制备方法、模具 Download PDF

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Publication number
WO2021212963A1
WO2021212963A1 PCT/CN2021/075373 CN2021075373W WO2021212963A1 WO 2021212963 A1 WO2021212963 A1 WO 2021212963A1 CN 2021075373 W CN2021075373 W CN 2021075373W WO 2021212963 A1 WO2021212963 A1 WO 2021212963A1
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WIPO (PCT)
Prior art keywords
air
mold
outlet
airbag
flow channel
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PCT/CN2021/075373
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English (en)
French (fr)
Inventor
袁大彩
Original Assignee
Yuan Dacai
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Publication date
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Publication of WO2021212963A1 publication Critical patent/WO2021212963A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2022/00—Hollow articles
    • B29L2022/02—Inflatable articles
    • B29L2022/027—Air bags
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/48—Wearing apparel
    • B29L2031/50—Footwear, e.g. shoes or parts thereof
    • B29L2031/504—Soles

Definitions

  • the invention relates to the technical field of footwear, in particular to a ventilating airbag, a preparation method thereof, and a mold.
  • the shoe factory will add some ventilation airbags to the soles, and use the airbags to increase the resilience to achieve shock absorption, so as to improve the comfort of the wearer's walking.
  • the airbags are made of TPU hollow bladders, which need to be cut and manually glued.
  • the knot forms a balloon shape, and the balloon body is cut out to cut out a joint communicating with the inner cavity of the balloon body; an air duct is inserted at the joint, and the end of the air duct is inserted into a one-way valve core.
  • airbag components manual assembly is required, the structure is complicated, and the production cost is high.
  • the present invention provides a ventilating airbag with simple structure, few components, and simple assembly, and a preparation method and mold thereof.
  • a ventilation airbag including an airbag body, the airbag body is provided with an air-containing cavity, and the front end of the airbag body is provided with a gas-containing cavity that communicates with the airbag body.
  • the one-way air inlet flow passage and the one-way air outlet air passage, the airbag body, the one-way air inlet flow passage and the one-way air outlet air passage are integrally formed, and the air inlet flow passage is provided with a first ball, and the first round
  • An air intake blocking ring is arranged between the bead and the air inlet, the inner diameter of the air inlet runner is larger than the diameter of the first round bead, the inner diameter of the air intake blocking ring is smaller than the diameter of the first round bead, and the outlet air passage is provided
  • a second ball an air outlet blocking ring is arranged between the second ball and the outlet of the air-containing cavity, the inner diameter of the air outlet passage is larger than the diameter of the second ball, and the inner diameter of the air outlet blocking ring is smaller than the second round The diameter of the bead.
  • the inlet and outlet channels include a pipe and a blocking ring arranged in the pipe, which is smaller than the inner diameter of the pipe.
  • the inner wall of the runner is raised with several limit points, the blocking ring and the ball Cooperate with opening or closing the gas flow of the flow channel, the limit point of the inlet flow channel restricts the ball from falling into the air-containing cavity and keeps the flow channel ventilated.
  • the block ring of the outlet flow channel cooperates with the ball to open or close the gas flow of the outlet flow channel.
  • the outlet airway limit point restricts the ball from running out of the airbag and keeps the airway ventilated.
  • the airbag body is integrated into the air inlet and outlet air channels, and the movement of the ball between the blocking ring and the limit point is used to achieve the effects of one-way air intake and one-way air outlet, which simplifies the overall airbag structure and is airtight Performance is better than traditional airbags.
  • the surface of the inner wall of the inlet flow channel is provided with a plurality of first limit points between the inlet of the air-containing cavity and the first ball, and the first limit points are protruding from the inner wall of the inlet flow channel, and the plurality of first limit points
  • the distance between the protruding top ends of a limiting point is smaller than the diameter of the first ball
  • the inner wall surface of the air outlet channel is provided with a plurality of second limiting points between the air outlet and the second ball.
  • the location point protrudes on the inner wall of the air outlet channel, and the distance between the protruding top ends of the second limit points is smaller than the diameter of the second ball.
  • the inlet flow passage and the outlet flow passage are a pipe with the same inner diameter.
  • the diameter of the first ball and the second ball are smaller than the inner diameter of the pipe.
  • the first and second limit points restrict the first and second ball from sliding out of the flow path.
  • the flow channel is kept ventilated, and the air inlet/outlet block ring restricts the ball to slide out of the flow channel while blocking the flow channel.
  • the air-containing inner cavity is filled with a gas-permeable supporting filler.
  • the airbag body is made of rubber.
  • a mold for manufacturing a ventilating airbag includes an upper mold, a middle plate, and a lower mold.
  • the middle plate is arranged between the upper mold and the lower mold.
  • the upper and lower molds are each provided with at least one concave mold cavity, and the upper and lower surfaces of the middle board are provided with protruding upper mold cores and lower mold cores at positions corresponding to the recessed mold cavities.
  • the concave cavity of the upper mold is combined with the mold core on the middle plate to form an upper sheet cavity, and the concave cavity of the lower mold and the lower mold core on the middle plate are combined to form a lower sheet cavity.
  • the plate cavity is provided with a reserved groove for the inlet flow passage and a reserved groove for the outlet flow passage.
  • the upper mold core and the concave portion mold cavity, and the lower mold core and the concave portion mold cavity are provided with a gentle slope and a gentle slope, which effectively reduces the wrinkling after the upper film and the lower film are connected.
  • the airbag mold further includes an inlet runner mold core and an outlet flow channel mold core that are matched with the reserved grooves of the inlet runner, and the inlet runner mold core and the outlet flow channel mold core are a round rod.
  • the round bar is provided with a blocking groove, and one side of the blocking groove is provided with a limiting hole. After the upper mold and the lower mold are closed, the blocking groove forms a blocking ring in the flow channel, and the limiting hole is formed Limit point.
  • the invention simplifies the production process of the airbag through the mold, the air inlet flow channel mold core and the outlet air channel mold core use the same mold core, the mold structure is more optimized, and the cost is further saved and the production efficiency is improved.
  • a method for preparing a ventilating airbag includes the following steps:
  • Step 1 Preheat the mold: first preset the curing time on the vulcanizer to be 50s to 200s, and the curing temperature to be 150°C to 200°C, and then close the upper mold, the middle plate, and the lower mold for preheating.
  • the preheating temperature is the preset temperature of the vulcanizer, and the preheating time is 40min ⁇ 3h;
  • Step 1 Preheat the mold: close the upper mold, the middle plate, and the lower mold to preheat;
  • Step 2 Load the rubber material and close the mold: After the mold temperature reaches the set value, separate the upper mold, the middle plate, and the lower mold, put the lower layer of rubber (solid) into the concave cavity of the lower mold, and then center the mold.
  • the plate is placed on the lower mold, so that the lower mold core of the middle plate is attached to the surface of the lower rubber material, and then the upper rubber material (solid) is placed on the surface of the mold core of the middle plate, and then the upper mold is covered on the middle plate to make the upper cover recessed
  • the mold cavity is attached to the surface of the upper rubber material.
  • the material type matches the concave mold cavity so that the rubber material can fill the cavity;
  • Step 3 Vulcanization molding: Put the mold in step two into the vulcanizer, start the vulcanizer to close the mold, heat the mold according to the preset vulcanization temperature of the vulcanizer, and the upper rubber material melts and flows to the upper sheet In the cavity of the upper sheet, an airbag upper sheet with a front air inlet and outlet air passage reserved grooves and a hemispherical cavity in the middle is formed.
  • the lower layer of rubber melts and flows into the lower sheet cavity, in the lower sheet cavity Forming an airbag lower sheet with a front air inlet flow channel and a reserved groove for the outlet air channel and a hemispherical cavity in the middle;
  • Step 4 Opening the mold: Separate the upper mold from the lower mold and pull out the middle plate, and put the breathable support material in the hemispherical cavity of the lower part of the airbag;
  • Step 5 Put the air inlet runner mold core and the outlet air channel mold core into the reserved grooves of the air inlet runner and the outlet air channel, and put the upper mold and the lower mold closed mold into the said vulcanizer to pressurize and heat, The edges of the airbag upper sheet and the airbag lower sheet are thermally fused together, and the mold core of the air inlet flow channel and the mold core of the outlet air channel are drawn out to form a basic airbag with reserved air inlet and outlet channels;
  • Step 6 Insert two balls into the air inlet and outlet channels respectively.
  • the ball of the inlet air channel is between the blocking ring and the air-containing cavity, and the ball of the outlet air channel is between the blocking ring and the air outlet. Preparation of airbags.
  • the beneficial effect of the present invention is that the airbag of the present invention adopts an integrally formed air inlet flow channel and an air outlet air channel.
  • the limit points protrude on the inner wall of the flow channel.
  • the distance between the top ends of the limit points is less than that of the ball.
  • the limit points restrict the ball from sliding out of the flow channel while maintaining the flow channel ventilation.
  • a blocking ring is arranged between the ball and the air inlet.
  • the inner diameter of the blocking ring is smaller than that of the ball.
  • the blocking ring restricts the ball from sliding out of the flow channel while blocking the flow channel.
  • the outlet air passage is composed of a round pipe with an inner diameter and a second ball with a diameter smaller than that of the pipe.
  • a block ring is arranged between the ball and the air-containing cavity.
  • the inner diameter of the block ring is smaller than the ball, and the block ring restricts the ball from slipping out.
  • the flow channel is blocked at the same time.
  • the limit point is raised on the inner wall of the flow channel. The distance between the raised tops of several limit points is less than that of the ball, and the limit point limits the circle. Keep the flow channel ventilated while the bead slides out of the flow channel.
  • the invention has a simple structure.
  • the air inlet and outlet air channels are integrally formed in the airbag body, and the movement of the ball between the obturator ring and the limiting point is used to achieve the functions of unidirectional air intake and unidirectional air discharge, which not only guarantees the cost
  • the control effect of the invention on airflow simplifies the overall structure.
  • the airbag of the present invention can realize two modes.
  • Mode 1 The airbag discharges sweat from the shoes out of the shoes.
  • the air inlet flow channel passes through the duct, the airbag inlet is arranged in the shoe. Since the air inlet and outlet air channels adopt a unidirectional design, By opening and closing the flow channel by the ball, the air inlet channel can only take in air, while the outlet air channel can only give out air.
  • the airbag is compressed and expanded by the feet to compress and expand the damp sweat in the shoes. Exhaust the shoes to keep the feet dry and comfortable, avoiding the smell of the shoes.
  • Mode 2 The airbag introduces the air outside the shoes into the shoes. When the air inlet is set outside the shoes through the duct, it is based on the principle of human walking. Through the compression and expansion of the airbag, the outside air is gradually sucked into the shoe, thereby playing the role of ventilation and ventilation in the shoe.
  • the preparation process of the present invention is simple. Firstly, the middle plate is set between the upper mold and the lower mold to form the airbag upper sheet and the airbag lower sheet.
  • the upper rubber skin and the lower rubber skin are in the reserved grooves for the air passages, and the edges of the upper rubber skin and the lower rubber skin are glued to form an integrally formed airbag with air inlet and outlet air passages communicating with the air-containing cavity, and then
  • the occluded balls are respectively stuffed into the first and second round bead cavity sections. Since the flow channel is made of rubber material, the occluded balls are easy to be stuffed into the flow channel.
  • the preparation is simple, the production efficiency is high, and the traditional solution is
  • the disadvantages of many airbag components are that the inlet and outlet air channels are integrally formed to avoid the inability of the existing one-way valve core of the airbag to achieve the ventilation effect due to the infirm assembly.
  • the process of the present invention is simpler than the traditional airbag production process. The production of the basic airbag is realized, and then the ball is inserted to complete the production of the entire airbag, with fewer components, low cost, better airtightness, and stronger overall.
  • Fig. 1 is a schematic perspective view of the present invention.
  • Figure 2 is a front cross-sectional view of the present invention.
  • Fig. 3 is a cross-sectional view taken along the line A-A in Fig. 2.
  • Fig. 4 is a schematic structural diagram of the first embodiment of the intake runner.
  • Figure 5 is a schematic structural diagram of the first embodiment of the air outlet channel.
  • Figure 6 is an exploded structure diagram of the mold.
  • Fig. 7 is a three-dimensional structural view of a runner mold core.
  • Fig. 8 is a schematic structural diagram of the second embodiment of the intake runner.
  • Fig. 9 is a schematic structural diagram of the second embodiment of the air outlet channel.
  • Fig. 10 is a three-dimensional structural view of the second embodiment of the intake runner mold core.
  • Fig. 11 is a three-dimensional structural view of the second embodiment of the outlet air channel mold core.
  • Airbag body 11. Air inlet; 12. Air outlet; 13. Airbag upper sheet; 14. Airbag lower sheet; 2. Air containing cavity; 21. Filler; 22. Inlet; 23. Outlet; 3. Intake runner; 30. Intake blocking ring; 31. First intake section; 311. Intake section; 312. Intake blocking section; 32. Second intake section; 321. First circle Bead-containing cavity section; 322. The first gas-containing inner cavity connecting section; 323. The first limit point; 33. The first interface; 34. The first round bead; 4. Outlet air passage; 40. Outflow occlusion ring; 41 The first air outlet section; 411. Air outlet section; 412. The second round bead cavity section; 413. The second limit point; 42.
  • the second air outlet section; 422. The second air-containing cavity connecting section; 43. Section Two interfaces; 44. Second ball; 5. Upper mold; 6. Middle plate; 61. Upper mold core; 7. Lower mold; 71. Recessed cavity; 8. Inlet runner mold core; 81. First limit Position hole; 82. Blocking groove; 9. Outlet flow channel mold core; 91. Second limit hole.
  • the present invention relates to a ventilating airbag, including an airbag body 1, the airbag body 1 is made of rubber, the airbag body 1 includes an airbag upper sheet 13 and an airbag lower sheet 14, the airbag
  • the main body 1 is provided with an air-containing cavity 2 which is provided with ventilated supporting fillers 21, such as sponges, leaves, etc., and the front end of the airbag body 1 is provided with an air inlet 11 and an air outlet 12
  • the air-containing cavity 2 has an inlet 22 and an outlet 23.
  • the airbag body 1, the one-way air inlet channel 3 and the one-way air outlet channel 4 are integrally formed, and the traditional airbags are all Multiple components are manually assembled.
  • the present invention uses an integrated molding process to simplify components such as traditional airbag interfaces and one-way valve cores, optimizes production processes, improves production efficiency, and solves the problems of insecure assembly of existing airbags and one-way valve cores.
  • the air inlet runner 3 is provided with a first ball 34, an air inlet blocking ring 30 is provided between the first ball 34 and the air inlet 11, and the blocking ring 30 is provided with a groove and an upper part through the runner mold core.
  • the lower mold is matched with rubber hot press molding, the inner diameter of the air inlet runner 3 is greater than the diameter of the first ball 34, the inner diameter of the air inlet blocking ring 30 is smaller than the diameter of the first ball 34, and the outlet air channel 4
  • the inlet flow channel and the outlet flow channel have the same structure, and the positions of the blocking ring and the limit point are just opposite.
  • the inner wall surface of the air inlet runner 3 is provided with a plurality of first limiting points 323 between the inlet 22 of the air-containing cavity 2 and the first ball 34, and the first limiting points 323 protrude from the inlet 22.
  • the first limit point 323 is provided with a limit hole on the runner core and is formed by rubber hot pressing in cooperation with the upper and lower molds.
  • the distance between the protruding tips of the first limit points 323 is smaller than the first The diameter of the ball 34, the inner wall surface of the air outlet channel 4 is provided with a number of second limit points 413 between the air outlet 12 and the second ball 44, and the second limit points 413 protrude from the air outlet channel 4 On the inner wall, the distance between the top ends of the protrusions of the second limit points 413 is smaller than the diameter of the second ball 44.
  • the inlet flow passage 3 and the outlet flow passage 4 are a pipe with the same inner diameter.
  • the diameters of the first ball 34 and the second ball 44 are smaller than the inner diameter of the pipe.
  • the first and second limit points 413 restrict the first and second circles. While the ball slides out of the flow channel, the flow channel is kept ventilated, and the air inlet/outlet block ring 40 restricts the ball to slide out of the flow channel while blocking the flow channel.
  • the airbag mold includes an upper mold 5, a middle plate 6, a lower mold 7, and a runner mold core.
  • the middle plate 6 is provided on the upper mold 5 and the lower mold 7, and the upper mold 5 and the lower mold 7 are arranged in parallel and closely attached to the upper and lower surfaces of the middle plate 6.
  • the upper and lower molds 5 and 7 are each provided with four concave cavity cavities, and the upper and lower surfaces of the middle plate 6 are arranged at the position of the concave cavity. There are a mirror image of the upper mold core 61 and the lower mold core.
  • the upper mold 5 and the upper mold core 61 are closed to form an upper sheet cavity, and the lower mold 7 and the lower mold core are closed to form a lower sheet cavity, so
  • the upper mold core 61 and the recessed portion mold cavity, and the lower mold core and the recessed portion mold cavity are provided with a gentle slope, a gentle slope, which effectively reduces the wrinkling of the upper film and the lower film after being connected.
  • the runner mold cores are inserted into the reserved air passage grooves, and the runner mold cores are divided into The inlet runner mold core 8 and the outlet flow channel mold core 9, and the inlet runner mold core 8 and the outlet flow channel mold core 9 have the same structure and are all a round rod.
  • the rod is provided with a blocking groove 82, A limit hole is provided on one side of the blocking groove 82, the air inlet runner core 8 and the outlet air channel mold core 9 make the front end of the airbag body form the air inlet and outlet air channels, the air inlet runner mold core 8 and the outlet air channel mold
  • the positions of the blocking groove and the limiting hole of the core 9 are just reversed, that is, the inlet flow channel mold core 8 and the outlet flow channel mold core 9 are inserted in opposite directions.
  • a method for preparing a ventilating airbag includes the following steps:
  • Step 1 Preheat the mold: First preset the vulcanization time on the vulcanizer to be 50s ⁇ 200s, the vulcanization temperature is 150°C ⁇ 200°C, and the vulcanization pressure is 4MPa ⁇ 20MPa; then, close the upper mold, middle plate and lower mold Carry out preheating, the preheating temperature is the preset temperature of the vulcanizer, and the preheating time is 40min ⁇ 3h;
  • Step 2 Load the rubber material and close the mold: After the mold temperature is constant, separate the upper mold, the middle plate, and the lower mold, put the lower layer of rubber (solid) into the cavity of the lower mold cavity, and then place the middle plate on the lower mold Upper, make the lower mold core of the middle plate stick to the surface of the lower rubber material, then put the upper rubber material (solid) into the surface of the upper mold core, and then insert the cavity of the upper mold cavity into the upper mold core, so that the middle plate core is stuck on the surface of the upper mold core.
  • the material type matches the cavity so that the rubber material can fill the cavity.
  • the vulcanization time is 100S, and the vulcanization temperature is 150°C ⁇ 200°C;
  • Step 3 Vulcanization molding: Put the mold in step two into the vulcanizer, start the vulcanizer, heat the mold according to the preset vulcanization temperature of the vulcanizer, and the upper rubber material melts and flows into the upper sheet cavity , Form an upper rubber sheet with a hemispherical cavity in the middle with a front air inlet flow channel and a reserved groove for the outlet air flow in the upper sheet cavity.
  • the lower rubber material melts and flows into the lower sheet cavity, forming a result in the lower sheet cavity A lower rubber sheet with a reserved groove for the front air inlet and outlet air channels and a hemispherical cavity in the middle;
  • Step 4 Opening the mold: Separate the upper mold from the lower mold and pull out the middle plate, and put a breathable support material into the hemispherical cavity of the upper rubber sheet or the lower rubber sheet; breathable support materials such as sponge, leaves, buckwheat, etc., the middle plate Extraction can take many forms, such as the most awkward manual extraction, or extraction by a commonly used manipulator. For those skilled in the art, there are many ways to extract, as long as the upper mold core and the lower mold core can be extracted. Just between the upper mold and the lower mold;
  • Step 5 Put the mold core of the air inlet runner and the mold core of the outlet air channel into the reserved grooves of the air inlet runner and the outlet air channel, and put the mold of the upper and lower molds into the said vulcanizing machine, the upper and lower two layers
  • the rubber film is hot-melt bonded, and the mold core of the air inlet runner and the mold core of the outlet air channel are drawn away to form a basic air bag with the air inlet runner and the outlet air channel; when hot-melt bonding, the hot pressing temperature is 130°C ⁇ 200°C, the pressure value is 0.3 ⁇ 0.5Mpa;
  • Step 6 Insert two balls into the air inlet flow channel between the blocking ring and the limiting point and between the air outlet air channel blocking ring and the limiting point to complete the preparation of the airbag;
  • Step 8 Use air ducts made of PVC or TPU and silicone hose materials to be inserted into the air inlet and outlet air channels respectively, and the air bag is installed in the shoe, and the air duct connected with the air inlet is connected to the inside/out of the shoe. Connected to the outside of the shoe/inside of the shoe communicating with the air outlet.
  • step one the preheating of the mold in step one requires preheating before the production of the first mold. If the production of the first mold is completed, step one can be omitted during continuous production after the second mold.
  • the middle plate 6 is provided with an upper mold core 61 and a lower mold core.
  • the upper mold core 61 makes the rubber skins in the upper mold 5 and the lower mold 7 adhere to the inner wall of the mold cavity to form the airbag body 1, and As a result, an air-containing cavity 2 is formed in the airbag body 1.
  • the outlet flow channel mold core can be the same as the inlet flow channel mold core, and the placement direction is opposite to the inlet flow channel during the manufacturing process.
  • the intake duct into the air inlet of the intake runner 3.
  • One end of the intake duct is inserted into the intake section to communicate with the intake runner, the other end of the intake duct is set in the shoe, the intake runner 3
  • the outlet of the outlet duct 4 is inserted into the outlet duct.
  • One end of the outlet duct is inserted into the outlet section to communicate with the outlet duct.
  • the other end of the duct is set outside the shoe.
  • the outlet duct 4 can only outlet but not When the person lifts the air into the air, the support will make the airbag from flat to inflated. The wet sweat in the shoe is sucked into the air inlet channel from the air inlet pipe through the airbag, and the airbag expands.
  • the bead 34 is pushed to the first limit point 323, and the inlet flow passage and the gas-containing inner cavity 2 pass through, so that the gas enters the gas-containing inner cavity 2 from the inlet flow passage 3, and at the same time, the gas outside the shoe enters the outlet gas
  • the second ball 44 is pushed to the air outlet occlusion ring, and the air outlet channel is closed;
  • the airbag is compressed after a person’s foot is on the ground, and the gas in the air-containing cavity 2 enters the outlet air passage and pushes the second ball 44 to the second limit point 413.
  • the outlet air passage and the air-containing cavity 2 are connected, so that the gas flows out of the airbag.
  • the damp sweat in the shoe in the airbag is squeezed out of the shoe.
  • the gas in the air-containing cavity 2 enters the air inlet flow channel and pushes the first ball 34 to the air inlet blocking ring, and the air inlet flow channel is closed to prevent
  • the sweat just drawn from the shoe flows back into the shoe, thereby realizing the one-way air intake in the air inlet runner 3 and the one-way air outflow from the outlet air channel 4.
  • the airbag When a person lifts his foot, the airbag uses its own rubber elasticity and the inner cavity of the container to fill the support to return to the inflated state. The inner cavity of the container sucks in air from the intake duct; The air is squeezed out through the outlet duct. This cycle achieves the purpose of inhaling and exhausting. Through the airbag structure of the present invention, the airbag actively inhales and forcibly discharges air.
  • the difference between the second embodiment and the first embodiment is that the structure of the inlet runner 3 and the outlet runner are different, and the structure of the inlet runner mold core and the outlet runner mold core are different.
  • the intake runner 3 includes a first intake section 31, a second intake section 32, and a first interface 33 that communicates the first intake section 31 and the second intake section 32.
  • the second intake section The air inlet section 32 is provided with a first ball 34 that opens or closes the first interface 33.
  • the air outlet passage 4 includes a first air outlet section 41, a second air outlet section 42 and communicates with the first air outlet section 41 and the second air outlet.
  • the second interface 43 of the section 42 is provided with a second ball 44 for opening or closing the second interface 43 in the first air outlet section 41.
  • the first air inlet section 31 is provided with an air inlet section 311 and an air inlet blocking section 312 from the air inlet to the direction of the air-containing cavity 2 in sequence, and the second air inlet section 32 is from the air inlet to the air-containing cavity 2 In the inner cavity 2 direction, the first ball-containing cavity section 321 and the first air-containing cavity connecting section 322 are arranged in sequence, and a first limit is provided between the first ball-containing cavity section 321 and the first air-containing cavity connecting section 322 At point 323, the inner diameter of the air inlet section 311 is larger than the diameter of the first ball.
  • the air inlet section 311 is convenient for the first ball 34 to be inserted into the air inlet blocking section 312.
  • the air inlet section 311 is used to insert the air guide tube to facilitate gas inhalation.
  • the intake blocking section 312 forms a first interface that penetrates the first intake section 31 and the second intake section 32.
  • the intake blocking section 312 has two ends, and the inner diameter of the end near the intake port is larger than the diameter of the first ball 34.
  • the inner diameter of one end close to the gas-containing cavity 2 is smaller than the diameter of the first ball, the inner diameter of the first ball-containing cavity section 321 is larger than the diameter of the first ball 34, and the first limit point 323 limits the first ball 34 to the first ball.
  • the first limit point 323 is a convex point or a stud formed on the inner wall surface of the intake runner 3, and only limits the position of the first ball 34 to prevent the first ball 34 from entering the airbag and make the first ball 34 enter the airbag.
  • the first ball 34 is pushed by the gas in the first A ball cavity section 321 moves back and forth between the air intake blocking section 312 and the first limit point 323.
  • the first air outlet section 41 is sequentially provided with an air outlet section 411 and a second ball cavity section 412 from the air outlet to the direction of the air containing cavity 2.
  • the second limit point 413 restricts the ball from falling off and running out of the airbag while maintaining the air outlet channel 4 and the air-containing cavity 2 to ventilate.
  • the second limit point 413 restricts the second ball 44
  • the second air inlet section 32 is sequentially provided with an air outlet blocking section and a second air-containing cavity connecting section 422 from the air outlet toward the air-containing cavity 2, and the air outlet section 411 and
  • the inner diameter of the second ball chamber section 412 is larger than the diameter of the second ball 44.
  • the air outlet occlusion section forms a second interface that penetrates the first air outlet section and the second air outlet section.
  • the inner diameter of the second ball 44 is larger than that of the second ball 44.
  • the inner diameter of the end close to the air-containing inner cavity 2 is smaller than the diameter of the second ball 44.
  • the inner diameter of the connecting section 422 of the second air-containing inner cavity is smaller than that of the second ball 44.
  • the ball 44 moves back and forth between the second limit point 413 and the second air outlet section 42 in the second ball containing cavity section 412 under the push of gas.
  • the air outlet blocking section can be omitted, and the diameter of the second air-containing inner cavity connecting section 422 is smaller than that of the second ball 44, which can also solve the technical solution of the present invention.
  • the existence and lack of the air outlet blocking section lies in the structure of the outlet flow channel mold core. Whether it is consistent with the inlet runner mold core.
  • the invention has a simple structure.
  • the airbag body integrally forms the air inlet flow channel and the outlet air flow channel.
  • the first ball is used to move between the air intake blocking section and the first limit point to achieve unidirectional air intake, and the second ball is used for the air outlet.
  • the movement between the occlusion section and the second limit point to achieve unidirectional air outflow not only ensures the airflow control effect of the present invention, but also simplifies the overall structure;
  • the first ball 34 opens the first port, the air inlet flow channel opens for air intake, the air from the airbag enters the outlet air channel and pushes the second ball 44 to the second air outlet section 42, and the second ball 42 blocks the second port ,
  • the outlet air passage is closed to realize the one-way air intake of the inlet air passage;
  • the air flow in the airbag enters the air inlet passage and pushes the first ball 34 to the air inlet blocking section, the first ball 34 blocks the first interface, and the inlet air passage is closed.
  • the airflow in the airbag is prevented from flowing back, and the airflow in the airbag enters the air outlet channel to push the ball to the second limit point 413, and the air outlet channel opens to discharge air, realizing one-way air outlet from the air outlet channel.
  • the intake duct into the air inlet of the intake runner 3.
  • One end of the intake duct is inserted into the intake section to communicate with the intake runner, the other end of the intake duct is set in the shoe, the intake runner 3
  • the outlet of the outlet duct 4 is inserted into the outlet duct.
  • One end of the outlet duct is inserted into the outlet section to communicate with the outlet duct.
  • the other end of the duct is set outside the shoe.
  • the outlet duct 4 can only outlet but not When the person lifts off, the damp sweat in the shoe enters the airbag through the air intake channel, the airbag expands, and the air outside the airbag enters the air inlet section 311 through the air intake duct, and then pushes the first ball 34 from the air intake blocking section 312 to the first A limit point 323, the first ball 34 opens the first interface, the air intake section 311, the air intake blocking section 312, the first ball receiving cavity section 321, the first air-containing cavity connecting section 322, and the air-containing cavity 2 through, so that the gas enters the gas-containing inner cavity 2 from the inlet runner 3, and at the same time, the second ball 44 is pushed from the ball-containing cavity section to the second gas outlet section after the gas outside the shoe enters the gas outlet section. Two round beads 44 block the second interface, and the air outlet is closed;
  • the airbag is compressed after the human foot hits the ground, and the gas in the air-containing cavity 2 causes the second ball 44 to move from the second interface to the second limit point 413, the air outlet section 411, the air outlet occlusion section, and the second ball chamber section 412,
  • the second air-containing cavity connecting section 422 and the air-containing cavity 2 pass through, so that the gas flows out of the airbag, and the moist sweat in the shoe in the airbag is squeezed out of the shoe.
  • the first ball 34 is pushed from the first limit point 323 to the air intake blocking section 312 to block the first interface 33, and the gas in the air-containing cavity cannot enter the air intake section 311, preventing the sweat just drawn from the shoe Return to the inside of the shoe, thereby realizing the one-way air intake of the air inlet runner 3 and the one-way air outlet of the air outlet runner 4.
  • the inlet runner core 8 includes a first cylinder and a second cylinder.
  • the outer diameter of the first cylinder is larger than the outer diameter of the second cylinder, and a ring of grooves 82 is provided on the first cylinder.
  • the connection between the first cylinder and the second cylinder is provided with a first limiting hole 81.
  • the outlet air duct core 9 includes a third cylinder and a fourth cylinder, the outer diameter of the third cylinder is greater than the outer diameter of the fourth cylinder, and the third cylinder is provided with a second limiting hole 91, After the lower mold core 9 is put into the airbag body 1, the outflow channel 4 is formed by the hot molding process, and the second limiting point 432 is formed through the second limiting hole 91.
  • the structure of the air inlet runner 3 and the air outlet 4 integrally formed with the airbag of the present invention realizes the one-way air intake from the air inlet runner 3 and the one-way air outlet from the air outlet 4, thereby preventing backflow, that is, the air in the shoe enters the airbag ,
  • the air just inhaled from the shoe cannot flow back into the shoe, but can only be discharged out of the shoe.
  • the air inlet runner 3 and the air outlet 4 are reversed, and the air outside the shoe can be sucked into the shoe through the airbag.
  • An air outlet duct is inserted into the air outlet of the air outlet channel 4, and the air outlet duct is arranged in the shoe.

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Abstract

本发明涉及一种换气气囊及其制备方法、模具,换气气囊包括气囊本体，气囊本体内设有容气内腔，气囊本体的前端设有与容气内腔连通的单向进气流道与单向出气流道,进气流道与出气流道内分别设有圆珠,进气、出气流道包括管道和设于管道内比管道内径小的闭塞环，流道内壁凸起若干个限位点，闭塞环与圆珠配合打开或关闭流道的气体流通，进气流道限位点限制圆珠掉落容气内腔且保持流道通气，出气流道的闭塞环与圆珠配合打开或关闭出气流道的气体流通，出气流道限位点限制圆珠跑出气囊且保持流道通气。本发明结构简单，在气囊本体一体成型进气流道与出气流道，利用圆珠分别在闭塞环与限位点之间的活动以达到单向进气和单向出气的作用，简化了整体结构。

Description

一种换气气囊及其制备方法、模具 技术领域
本发明涉及鞋类技术领域，尤指一种换气气囊及其制备方法、模具。
背景技术
人在行走时脚部承受了全身的重量并把这个重量传递给地面，相对的地面也会产生一个反作用力给脚部，所以我们在走一段路后会觉得脚部酸痛，为了解决这个问题，鞋厂会在鞋底增加一些换气气囊，通过气囊来增加回弹力实现减震的，以提高穿戴者行走的舒适感，而目前气囊采用TPU制成中空囊体，囊体需要裁剪后通过人工粘结形成气囊状，囊体裁剪出与囊体容气内腔连通的接头；在接头处插入导气管，导气管末端插入单向阀芯。气囊组件多，需要人工装配，结构复杂，生产成本高。
发明内容
为解决上述问题，本发明提供一种结构简单、组件少、装配简单的换气气囊及其制备方法、模具。
为实现上述目的，本发明采用如下的技术方案是：一种换气气囊，包括气囊本体，所述气囊本体内设有容气内腔，所述气囊本体的前端设有与容气内腔连通的单向进气流道与单向出气流道,所述气囊本体、单向进气流道与单向出气流道一体成型，所述进气流道内设有第一圆珠，所述第一圆珠与进气口间设有进气闭塞环，所述进气流道的内径大于第一圆珠的直径，所述进气闭塞环内径小于第一圆珠的直径，所述出气流道内设有第二圆珠，所述第二圆珠与容气内腔出口间设有出气闭塞环，所述出气流道的内径大于第二圆珠的直径，所述出 气闭塞环内径小于第二圆珠的直径。
进气流道与出气流道内分别设有圆珠,进气、出气流道包括管道和设于管道内比管道内径小的闭塞环，流道内壁凸起若干个限位点，闭塞环与圆珠配合打开或关闭流道的气体流通，进气流道限位点限制圆珠掉落容气内腔且保持流道通气，出气流道的闭塞环与圆珠配合打开或关闭出气流道的气体流通，出气流道限位点限制圆珠跑出气囊且保持流道通气。在气囊本体一体成型进气流道与出气流道，利用圆珠分别在闭塞环与限位点之间的活动以达到单向进气和单向出气的作用，简化了整体气囊结构，且气密性比传统气囊更佳。
优选地，所述进气流道内壁表面在容气内腔入口与第一圆珠之间设有若干个第一限位点，所述第一限位点凸起于进气流道内壁，若干第一限位点凸起顶端之间的距离小于第一圆珠直径，所述出气流道内壁表面在出气口与第二圆珠之间设有若干个第二限位点，所述第二限位点凸起于出气流道内壁，若干第二限位点凸起顶端之间的距离小于第二圆珠直径。
进气流道和出气流道为一条内径相同的管道，第一圆珠和第二圆珠直径小于管道的内径，第一、第二限位点限制第一、第二圆珠滑出流道的同时保持流道通气，进气\出气闭塞环限制圆珠滑出流道的同时闭塞流道。
优选地，所述容气内腔填充有透气支撑填充物。
优选地，所述气囊本体由橡胶制成。
一种制造换气气囊的模具，所述气囊模具包括上模、中板、下模，所述中板设于上模和下模之间，所述上模和下模平行相对设置且紧密贴合在中板上下表面，所述上模和下模均设有至少一个凹陷模腔，所述中板上下表面在对应凹陷模腔位置设有凸出的上模芯和下模芯，所述上模凹陷模腔与中板上模芯合模后形成上片型腔，所述下模凹陷模 腔与中板下模芯合模后形成下片型腔，所述上片型腔和下片型腔上设有进气流道预留槽与出气流道预留槽。所述上模芯和凹部模腔、下模芯和凹部模腔之间设有缓斜面，缓斜面，有效的减少了上层膜和下层膜连接后发生起皱的情况。
优选地，所述气囊模具还包括与进气流道预留槽相配合的进气流道模芯和出气流道模芯，所述的进气流道模芯和出气流道模芯为一根圆棒，所述的圆棒上设有闭塞凹槽，所述的闭塞凹槽一侧设有限位孔，在上模和下模合模后，闭塞凹槽形成流道中的闭塞环，限位孔形成限位点。
本发明通过模具简化气囊生产工艺，进气流道模芯和出气流道模芯采用同一模芯，模具结构更优化，进一步节省成本和提高生产效率。
一种换气气囊的制备方法，包括如下步骤：
步骤一：预热所述的模具：先在硫化机上预设好硫化时间为50s～200s、硫化温度为150℃～200℃，之后，将上模、中板、下模合模进行预热，预热温度为硫化机的预设温度，预热时间为40min～3h；
步骤一：预热所述的模具：将上模、中板、下模合模进行预热；
步骤二：装入橡胶料并合模：模具温度达到设定数值后，将上模、中板、下模分开，将下层橡胶料(固态)放入下模的凹陷模腔内，再将中板放置下模上，使中板下模芯贴在下层橡胶料表面，再将上层橡胶料(固态)放入中板上模芯表面，再将上模盖于中板上，使上盖凹陷模腔贴在上层橡胶料表面,此时料型与凹陷模腔相匹配便于橡胶料充满型腔；
步骤三：硫化成型：将步骤二合模后的模具放入所述的硫化机中，启动硫化机合模，按硫化机预设的硫化温度对模具进行加热，上层橡胶料融化并流向上片型腔，在上片型腔内形成具有前端进气流道与出气流道预留槽且中部为半球面凹腔的气囊上片，下层橡胶料融化并流 向下片型腔，在下片型腔内形成得到具有前端进气流道与出气流道预留槽且中部为半球面凹腔的气囊下片；
步骤四：开模：上模与下模分开并抽离中板，在气囊下片半球面凹腔内放入透气支撑材料；
步骤五：将进气流道模芯与出气流道模芯放入进气流道与出气流道预留槽，将上模和下模合模的模具放入所述的硫化机中加压加热，气囊上片和气囊下片边缘热熔贴合，抽离进气流道模芯与出气流道模芯，制成留有进气流道和出气流道的基础气囊；
步骤六：将两颗圆珠分别塞入进气流道和出气流道内，进气流道的圆珠在闭塞环与容气内腔间，出气流道的圆珠在闭塞环与出气口间，完成气囊的制备。
本发明的有益效果在于：本发明的气囊采用一体成型的进气流道和出气流道，进气流道为一条内径正圆管道和一颗直径小于管道的第一圆珠组成，圆珠与容气内腔之间设有限位点，限位点凸起于流道内壁，若干限位点凸起顶端之间的距离小于圆珠，限位点限制圆珠滑出流道的同时保持流道通气，圆珠与进气口之间设有闭塞环，闭塞环内径小于圆珠，闭塞环限制圆珠滑出流道的同时闭塞流道。出气流道为一条内径正圆管道和一颗直径小于管道的第二圆珠组成，圆珠与容气内腔之间设有闭塞环，闭塞环内径小于圆珠，闭塞环限制圆珠滑出流道的同时闭塞流道，圆珠与出气口之间设有限位点，限位点凸起于流道内壁，若干限位点凸起顶端之间的距离小于圆珠，限位点限制圆珠滑出流道的同时保持流道通气。本发明结构简单，在气囊本体一体成型进气流道与出气流道，利用圆珠分别在闭塞环与限位点之间的活动以达到单向进气和单向出气的作用，既保证了本发明对气流的控制效果，又简化了整体结构。
本发明气囊可实现两种模式，模式一：气囊把鞋内汗气排出鞋外，当进气流道通过导管使气囊进气口设置在鞋内，由于进气与出气流道 采用单向设计，通过圆珠打开与关闭流道,进气流道只能进气，而出气流道只能出气，人体行走时，通过脚部挤压气囊，使气囊压缩和扩张，能把鞋内潮湿的汗气排出鞋外，保持脚部干爽舒适，避免了鞋臭，模式二：气囊把鞋外空气引入鞋内，当进气流道通过导管使进气口设置在鞋外，它是利用人走路的原理,通过气囊压缩与膨胀,把外界的空气逐步吸入鞋内，从而起到鞋内通风和换气的作用。
本发明的制备工艺简单，先利用中板设在上模与下模之间，形成气囊上片和气囊下片，而后抽离中板，将进气流道模芯与出气流道模芯放入上橡胶皮和下橡胶皮的气道预留槽中，使上橡胶皮和下橡胶皮边缘粘合以制得一体成型的具有与容气内腔连通的进气流道与出气流道气囊，再将闭塞圆珠分别塞入第一圆珠容腔段与第二圆珠容腔段内，由于流道是橡胶材料制成，闭塞圆珠容易塞入流道中，制备简单，生产效率高，解决传统气囊组件多的弊端，采用进出气流道一体成型结构，避免现有气囊的单向阀芯因装配不牢固而无法实现换气效果，且本发明工艺相对于传统气囊生产工艺更为简单，通过模具实现基础气囊制作，再塞入圆珠就完成整个气囊的制作，组件少成本低，且气密性更好，整体更牢固。
附图说明
图1是本发明的立体示意图。
图2是本发明的正视剖面图。
图3是图2的A-A剖面图。
图4是进气流道的实施例一结构示意图。
图5是出气流道的实施例一结构示意图。
图6是模具的爆炸结构图。
图7是流道模芯的立体结构图。
图8是进气流道的实施例二结构示意图。
图9是出气流道的实施例二结构示意图。
图10是进气流道模芯的实施例二立体结构图。
图11是出气流道模芯的实施例二立体结构图。
附图标记说明：1.气囊本体；11.进气口；12.出气口；13.气囊上片；14.气囊下片；2.容气内腔；21.填充物；22.入口；23.出口；3.进气流道；30.进气闭塞环；31.第一进气段；311.进气段；312.进气闭塞段；32.第二进气段；321.第一圆珠容腔段；322.第一容气内腔连接段；323.第一限位点；33.第一接口；34.第一圆珠；4.出气流道；40.出气闭塞环；41.第一出气段；411.出气段；412.第二圆珠容腔段；413.第二限位点；42.第二出气段；422.第二容气内腔连接段；43.第二接口；44.第二圆珠；5.上模；6.中板；61.上模芯；7.下模；71.凹部模腔；8.进气流道模芯；81.第一限位孔；82.闭塞凹槽；9.出气流道模芯；91.第二限位孔。
具体实施方式
实施例一
请参阅图1-9所示，本发明关于一种换气气囊，包括气囊本体1，所述气囊本体1由橡胶制成，气囊本体1包括气囊上片13和气囊下片14，所述气囊本体1内设有容气内腔2，所述容气内腔2内设有透气支撑填充物21，如海绵、树叶等，所述气囊本体1的前端设有进气口11和出气口12，容气内腔2具有入口22和出口23，在进气口11与容气内腔2入口22间设有与容气内腔2连通的单向进气流道3，在出气口12与容气内腔2出口23间设有与容气内腔2连通的单向出气流道4,所述气囊本体1、单向进气流道3与单向出气流道4一 体成型，传统气囊均为多个组件进行人工装配，本发明采用一体成型工艺简化传统气囊接口、单向阀芯等组件，优化生产工艺，提高生产效率，同时解决现有气囊与单向阀芯装配不牢固等问题，所述进气流道3内设有第一圆珠34，所述第一圆珠34与进气口11间设有进气闭塞环30，闭塞环30通过流道模芯上设有凹槽与上、下模配合通过橡胶热压成型，所述进气流道3的内径大于第一圆珠34的直径，所述进气闭塞环30内径小于第一圆珠34的直径，所述出气流道4内设有第二圆珠44，所述第二圆珠44与容气内腔2出口23间设有出气闭塞环40，所述出气流道4的内径大于第二圆珠44的直径，所述出气闭塞环40内径小于第二圆珠44的直径。进气流道与出气流道结构具有同一性，闭塞环与限位点的位置刚好相反。
优选地，所述进气流道3内壁表面在容气内腔2入口22与第一圆珠34之间设有若干个第一限位点323，所述第一限位点323凸起于进气流道3内壁，第一限位点323通过流道模芯上设有限位孔与上、下模配合通过橡胶热压成型，若干第一限位点323凸起顶端之间的距离小于第一圆珠34直径，所述出气流道4内壁表面在出气口12与第二圆珠44之间设有若干个第二限位点413，所述第二限位点413凸起于出气流道4内壁，若干第二限位点413凸起顶端之间的距离小于第二圆珠44直径。
进气流道3和出气流道4为一条内径相同的管道，第一圆珠34和第二圆珠44颗直径小于管道的内径，第一、第二限位点413限制第一、第二圆珠滑出流道的同时保持流道通气，进气\出气闭塞环40限制圆珠滑出流道的同时闭塞流道。
一种制造换气气囊的模具，所述气囊模具包括上模5、中板6、下模7、流道模芯，所述中板6设于上模5和下模7，所述上模5和下模7平行相对设置且紧密贴合在中板6上下表面，所述上模5和下模7均设有四个凹部模腔，所述中板6上下表面在凹部模腔位置设有镜像的上模芯61和下模芯，所述上模5与上模芯61合模后形成上片 型腔，所述下模7与下模芯合模后形成下片型腔，所述上模芯61和凹部模腔、下模芯和凹部模腔之间设有缓斜面，缓斜面，有效的减少了上层膜和下层膜连接后发生起皱的情况，所述上片型腔和下片型腔上设有气道预留槽，在中板抽离后，上下模间合为气道预留槽，气道预留槽内插入流道模芯，流道模芯分为进气流道模芯8和出气流道模芯9，进气流道模芯8和出气流道模芯9结构相同，均为一根圆棒，所述的圆棒上设有闭塞凹槽82，所述的闭塞凹槽82一侧设有限位孔，进气流道模芯8和出气流道模芯9使气囊本体前端形成进气和出气流道，进气流道模芯8和出气流道模芯9的闭塞凹槽和限位孔位置刚好对调，即进气流道模芯8和出气流道模芯9反向插入。
一种换气气囊的制备方法，包括如下步骤：
步骤一：预热模具：先在硫化机上预设好硫化时间为50s～200s、硫化温度为150℃～200℃及硫化压力为4MPa～20MPa；之后，将上模、中板、下模合模进行预热，预热温度为硫化机的预设温度，预热时间为40min～3h；
步骤二：装入橡胶料并合模：模具温度恒定后，将上模、中板、下模分开，将下层橡胶料(固态)放入下模凹部模腔内，再将中板放置下模上，使中板下模芯贴在下层橡胶料表面，再将上层橡胶料(固态)放入上模芯表面，再将上模凹部模腔嵌入上模芯，使中板上模芯贴在上层橡胶料表面，此时料型与型腔相匹配便于橡胶料充满型腔，硫化时间为100S、硫化温度为150℃～200℃；
步骤三：硫化成型：将步骤二合模后的模具放入所述的硫化机中，启动硫化机，按硫化机预设的硫化温度对模具进行加热，上层橡胶料融化并流向上片型腔，在上片型腔内形成具有前端进气流道与出气流道预留槽且中部为半球面凹腔的上层橡胶片，下层橡胶料融化并流向下片型腔，在下片型腔内形成得到具有前端进气流道与出气流道预留槽且中部为半球面凹腔的下层橡胶片；
步骤四：开模：上模与下模分开并抽离中板，向上层橡胶片或下层橡胶片半球面凹腔内放入透气支撑材料；透气支撑材料如海绵、树叶、荞麦等，中板抽走可以有多种形式，如最为笨拙的手动抽走，或者通过常用的机械手来进行抽走，对于本领域技术人员抽走方式多种多样，只要能够实现上模芯与下模芯抽离上模和下模之间即可；
步骤五：将进气流道模芯与出气流道模芯放入进气流道与出气流道预留槽，将上模和下模合模的模具放入所述的硫化机中，上下两层橡胶皮膜进行热熔贴合，抽离进气流道模芯与出气流道模芯，制成留有进气流道和出气流道的基础气囊；热熔贴合时，热压温度为130℃～200℃，压力值为0.3～0.5Mpa；
步骤六：将两颗圆珠分别塞入进气流道内闭塞环与限位点之间与出气流道内闭塞环与限位点之间，完成气囊的制备；
步骤八：采用PVC或TPU和硅胶软管材料制成的导气管分别插入进气流道和出气流道，将气囊装入鞋内，与进气流道连通的导气管接入鞋内/鞋外，与出气流道连通的接在鞋外/鞋内。
本生产工艺中，步骤一预热模具是在第一模生产前需要预热，若第一模生产完成后，后续第二模后连续生产时步骤一可省略。
在步骤二中，中板6上设有上模芯61和下模芯，上模芯61使上模5与下模7内的橡胶皮紧贴在模腔内壁，以形成气囊本体1，且使得气囊本体1内形成有容气内腔2。
本发明中出气流道模芯可以进气流道模芯一样，在制造过程中摆放方向与进气流道相反。
将本产品置入鞋底，向进气流道3的进气口插入进气导管，进气导管一端插入进气段内与进气流道连通，进气导管另一端设于鞋内，进气流道3只能进气而不能出气，出气流道4的出气口插入出气导管，出气导管一端插入出气段内与出气流道连通，出气导管另一端设于鞋 外，出气流道4只能出气而不能进气，人抬走时支撑物使气囊由扁到胀，鞋内潮湿的汗气通过气囊从进气管吸入进气通道，气囊膨胀，气囊外气体经进气导管进入进气流道后将第一圆珠34推向第一限位点323，进气流道和容气内腔2贯通，从而使气体由进气流道3进入容气内腔2，与此同时，鞋外气体进入出气流道后将第二圆珠44推向出气闭塞环，出气流道关闭；
人脚着地后气囊被压缩，容气内腔2的气体进入出气流道将第二圆珠44推向第二限位点413，出气流道和容气内腔2贯通，从而使气体流出气囊，气囊内鞋内潮湿的汗气被挤压到鞋外，与此同时，容气内腔2的气体进入进气流道将第一圆珠34推向进气闭塞环，进气流道关闭，防止刚从鞋内抽走的汗气回流鞋内，从而实现进气流道3单向进气，出气流道4单向出气。
当人抬脚时，气囊利用本身的橡胶弹性和容器内腔填充支撑物回位到鼓胀状态，容器内腔从进气导管吸入空气；人落脚时，气囊容气内腔被压扁，气囊内空气被挤压经出去导管排出。如此循环，达到吸气排气的目的。通过本发明气囊结构，实现气囊对空气的主动吸入和强行排出。
实施例二
实施例二与实施例一的区别于，进气流道3和出气流道的结构不同，采用的进气流道模芯与出气流道模芯结构不同。
实施例二中，所述进气流道3包括第一进气段31、第二进气段32与连通第一进气段31和第二进气段32的第一接口33，所述第二进气段32内设有打开或关闭第一接口33的第一圆珠34，所述出气流道4包括第一出气段41、第二出气段42与连通第一出气段41和第二出气段42的第二接口43，所述第一出气段41内设有打开或关闭第二接口43的第二圆珠44。
优选地，所述第一进气段31由进气口向容气内腔2方向依序设有进气段311和进气闭塞段312，第二进气段32由进气口向容气内腔2方向依序第一圆珠容腔段321和第一容气内腔连接段322，第一圆珠容腔段321和第一容气内腔连接段322间设有第一限位点323，进气段311的内径比第一圆珠直径大，进气段311便于第一圆珠34塞入进气闭塞段312，其次进气段311用于插入导气管，便于气体吸入，进气闭塞段312形成贯通第一进气段31和第二进气段32的第一接口，进气闭塞段312具有两端，靠近进气口一端的内径比第一圆珠34直径大，靠近容气内腔2一端的内径比第一圆珠直径小，第一圆珠容腔段321内径比第一圆珠34直径大，第一限位点323限制第一圆珠34在第一圆珠容腔段321内，第一限位点323为进气流道3内壁面形成的凸点或凸柱，仅限制第一圆珠34位置防止第一圆珠34进入气囊内并使第一圆珠34与进气流道3内壁面具有空隙,即限制第一圆珠34脱落进入气囊的同时保持进气流道3与容气内腔2通气，第一圆珠34在气体的推动下在第一圆珠容腔段321内从进气闭塞段312与第一限位点323间来回移动。
优选地，所述第一出气段41由出气口向容气内腔2方向依序设有出气段411和第二圆珠容腔段412，在出气段411和第二圆珠容腔段412间设有第二限位点413，第二限位点413限制圆珠脱落跑出气囊的同时保持出气流道4与容气内腔2通气，第二限位点413限制第二圆珠44在第二圆珠容腔段412内，第二进气段32由出气口向容气内腔2方向依序设有出气闭塞段和第二容气内腔连接段422间，出气段411和第二圆珠容腔段412的内径比第二圆珠44直径大，出气闭塞段形成贯通第一出气段和第二出气段的第二接口，出气闭塞段具有两端，靠近出气口一端的内径比第二圆珠44直径大，靠近容气内腔2一端的内径比第二圆珠44直径小，第二容气内腔连接段422的内径比第二圆珠44直径小，第二圆珠44在气体的推动下在第二圆珠容腔段412内从第二限位点413与第二出气段42间来回移动。本发明中出气闭塞段可以省略，第二容气内腔连接段422的直径比第二圆珠 44小也可解决本发明技术方案，出气闭塞段的存在与缺少在于出气流道模芯的结构是否与进气流道模芯一致。
本发明结构简单，在气囊本体一体成型进气流道与出气流道，利用第一圆珠在进气闭塞段与第一限位点间运动以达到单向进气，利用第二圆珠在出气闭塞段与第二限位点间运动以达到单向出气，既保证了本发明对气流的控制效果，又简化了整体结构；气囊外气流进入进气流道推动第一圆珠34到第一限位点，第一圆珠34打开第一接口，进气流道打开进气，气囊外气流进入出气流道推动第二圆珠44到第二出气段42，第二圆珠42堵住第二接口，出气流道关闭，实现进气流道单向进气；气囊内气流进入进气流道推动第一圆珠34到进气闭塞段，第一圆珠34堵住第一接口，进气流道关闭，阻止气囊内气流回流，气囊内气流进入出气流道推动圆珠到第二限位点413，出气流道打开出气，实现出气流道单向出气。
将本产品置入鞋底，向进气流道3的进气口插入进气导管，进气导管一端插入进气段内与进气流道连通，进气导管另一端设于鞋内，进气流道3只能进气而不能出气，出气流道4的出气口插入出气导管，出气导管一端插入出气段内与出气流道连通，出气导管另一端设于鞋外，出气流道4只能出气而不能进气，人抬走时鞋内潮湿的汗气通过进气通道进入气囊，气囊膨胀，气囊外气体经进气导管进入进气段311后使第一圆珠34从进气闭塞段312推向第一限位点323，第一圆珠34打开第一接口，进气段311、进气闭塞段312、第一圆珠容腔段321、第一容气内腔连接段322和容气内腔2贯通，从而使气体由进气流道3进入容气内腔2，与此同时，鞋外气体进入出气体段后使第二圆珠44从圆珠容腔段推向第二出气段，第二圆珠44堵住第二接口，出气流道关闭；
人脚着地后气囊被压缩，容气内腔2的气体使第二圆珠44从第二接口向第二限位点413，出气段411、出气闭塞段、第二圆珠容腔段412、第二容气内腔连接段422和容气内腔2贯通，从而使气体流 出气囊，气囊内鞋内潮湿的汗气被挤压到鞋外，与此同时，容气内腔2的气体使第一圆珠34从第一限位点323推向进气闭塞段312而堵住第一接口33，容气内腔内气体无法进入进气段311，防止刚从鞋内抽走的汗气回流鞋内，从而实现进气流道3单向进气，出气流道4单向出气。
优选地，所述进气流道模芯8包括第一圆柱与第二圆柱，所述第一圆柱的外径大于第二圆柱的外径，所述第一圆柱上设有一圈凹槽82，所述第一圆柱与第二圆柱的连接处设有第一限位孔81，将上模芯8放入气囊本体1后，通过热模压处理形成进气流道3，通过凹槽82形成第一接口，通过第一限位孔81形成第一限位点。
优选地，出气流道模芯9包括第三圆柱与第四圆柱，所述第三圆柱的外径大于第四圆柱的外径，所述第三圆柱上设有第二限位孔91，将下模芯9放入气囊本体1后，通过热模压处理形成出气流道4，通过第二限位孔91形成第二限位点432。
本发明与气囊一体成型的进气流道3、出气流道4的结构，实现从进气流道3单向进气，从出气流道4单向出气，从而防止回流，即鞋内气体进入气囊内，刚从鞋内吸入的气体无法回流鞋内，只能排出鞋外，解决现有气囊出现吸入的空气而回流的问题,有效避免气囊仅实现鞋内外空气流动但无法真正达到换气效果的弊端。
根据使用者的不同需求，进气流道3与出气流道4对调，通过气囊实现鞋外空气吸入鞋内，即进气流道3的进气口插入进气导管，进气导管设于鞋外，出气流道4的出气口插入出气导管，出气导管设于鞋内。
以上实施方式仅仅是对本发明的优选实施方式进行描述，并非对本发明的范围进行限定，在不脱离本发明设计精神的前提下，本领域普通工程技术人员对本发明的技术方案作出的各种变形和改进，均应 落入本发明的权利要求书确定的保护范围内。

Claims (6)

  1. 一种换气气囊，包括气囊本体，所述气囊本体内设有容气内腔，所述气囊本体的前端设有与容气内腔连通的单向进气流道与单向出气流道,其特征在于：所述气囊本体、单向进气流道与单向出气流道一体成型，所述进气流道内设有第一圆珠，所述第一圆珠与进气口间设有进气闭塞环，所述进气流道的内径大于第一圆珠的直径，所述进气闭塞环内径小于第一圆珠的直径，所述出气流道内设有第二圆珠，所述第二圆珠与容气内腔出口间设有出气闭塞环，所述出气流道的内径大于第二圆珠的直径，所述出气闭塞环内径小于第二圆珠的直径。
  2. 根据权利要求1所述的换气气囊，其特征在于：所述进气流道内壁表面在容气内腔入口与第一圆珠之间设有若干个第一限位点，所述第一限位点凸起于进气流道内壁，若干第一限位点凸起顶端之间的距离小于第一圆珠直径，所述出气流道内壁表面在出气口与第二圆珠之间设有若干个第二限位点，所述第二限位点凸起于出气流道内壁，若干第二限位点凸起顶端之间的距离小于第二圆珠直径。
  3. 根据权利要求1所述的换气气囊，其特征在于：所述容气内腔填充有透气支撑填充物。
  4. 一种制造如权利要求1所述换气气囊的模具，其特征在于：所述气囊模具包括上模、中板、下模，所述中板设于上模和下模之间，所述上模和下模平行相对设置且紧密贴合在中板上下表面，所述上模和下模均设有至少一个凹陷模腔，所述中板上下表面在对应凹陷模腔位置设有凸出的上模芯和下模芯，所述上模凹陷模腔与中板上模芯合模后形成上片型腔，所述下模凹陷模腔与中板下模芯合模后形成下片型腔，所述上片型腔和下片型腔上设有进气流道预留槽与出气流道预留槽。
  5. 根据权利要求4所述的制备方法，其特征在于：所述气囊模具还包括与进气流道预留槽相配合的进气流道模芯和出气流道模芯，所述的进气流道模芯和出气流道模芯为一根圆棒，所述的圆棒上设有闭塞凹槽，所述的闭塞凹槽一侧设有限位孔。
  6. 一种权利要求1所述的换气气囊的制备方法，其特征在于：包括如下步骤：
    步骤一：预热所述的模具：将上模、中板、下模合模进行预热；
    步骤二：装入橡胶料并合模：模具温度达到设定数值后，将上模、中板、下模分开，将下层橡胶料放入下模的凹陷模腔内，再将中板放置下模上，使中板下模芯贴在下层橡胶料表面，再将上层橡胶料放入中板上模芯表面，再将上模盖于中板上，使上盖凹陷模腔贴在上层橡胶料表面；
    步骤三：硫化成型：将步骤二合模后的模具放入所述的硫化机中，启动硫化机合模，按硫化机预设的硫化温度对模具进行加热，上层橡胶料融化并流向上片型腔，在上片型腔内形成具有前端进气流道与出气流道预留槽且中部为半球面凹腔的气囊上片，下层橡胶料融化并流向下片型腔，在下片型腔内形成得到具有前端进气流道与出气流道预留槽且中部为半球面凹腔的气囊下片；
    步骤四：开模：上模与下模分开并抽离中板，在气囊下片半球面凹腔内放入透气支撑材料；
    步骤五：将进气流道模芯与出气流道模芯放入进气流道与出气流道预留槽，将上模和下模合模的模具放入所述的硫化机中加压加热，气囊上片和气囊下片边缘热熔贴合，抽离进气流道模芯与出气流道模芯，制成留有进气流道和出气流道的基础气囊；
    步骤六：将两颗圆珠分别塞入进气流道和出气流道内，完成气囊 的制备。
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