Friction stir welding closed type vacuumizing heating and cooling shoe-shaped mold

Abstract

The invention discloses a friction stir welding closed type vacuumizing, heating and cooling shoe-shaped mold which mainly comprises an upper mold, an upper mold inner-layer flow channel welding sealing piece, an upper mold flow channel outer-layer welding sealing plate, a lower mold, a lower mold upper flow channel welding sealing plate, a lower mold lower flow channel welding sealing plate and a lower mold vacuumizing welding sealing plate. And the mold can be mounted on universal oil pressure equipment in the market for use through the bolt hole positions. And the upper mold is heated and cooled, and fluid enters from the upper mold runner inlet hole, the upper mold upper-layer runner and the upper mold lower-layer runner inlet hole, flows into the upper mold lower-layer runner, then flows back to the upper mold upper-layer runner from the upper mold lower-layer runner outlet hole, and flows out from the upper mold runner outlet hole. And the lower mold is heated and cooled, and fluid enters the lower mold upper runner from the lower mold runner inlet hole, flows to the lower mold vertical hole runner and the lower mold lower runner, and flows out from the lower mold lower runner outlet hole. According to the vacuumizing structure, a vacuumizing air hole in the bottom of a lower mold forming cavity is communicated with a lower mold vacuumizing hole air groove, a vacuumizing air hole in the side face of the lower mold forming cavity is communicated with a lower mold vacuumizing vertical air groove, and the lower mold vacuumizing vertical air groove is communicated with the lower mold vacuumizing hole air groove and a vacuumizing air exhaust hole. And air in the forming cavity of the lower mold is extracted outwards through the vacuumizing and air extracting hole.

Description

Technical Field

[0001] The invention discloses a closed-loop vacuum heating and cooling shoe mold for friction stir welding, which is used for heating, vulcanizing, cooling and shaping and requires venting during production. Background Technology

[0002] A closed-loop vacuum heating and cooling shoe mold for friction stir welding is used in the vulcanization and cooling process. This mold allows for rapid temperature control during vulcanization and cooling, enabling fast production to meet the required forming conditions. Currently, most commercially available molds use heating plates or pre-embedded pipes for heating and vulcanization. These molds are heavy, have a small heat transfer area, resulting in slow heating and cooling rates, poor heating and cooling effects, and limited production capacity. Furthermore, they lack vacuum control, leading to air trapping and high defect rates. This new closed-loop vacuum heating and cooling shoe mold for friction stir welding improves production efficiency and reduces defect rates. Summary of the Invention

[0003] The invention discloses a closed-loop vacuum heating and cooling shoe mold for friction stir welding, thereby solving the above problems.

[0004] To solve the above-mentioned technical problems, the present invention provides the following technical solution: An upper mold structure is constructed by first assembling the upper mold and the inner layer flow channel welded sealing components using friction stir welding, then machining the upper layer flow channel of the upper mold as a whole, assembling it with the outer layer welded sealing plate of the upper mold flow channel, and then assembling it again using friction stir welding to form the internal flow channel. The upper mold has an upper mold flow channel inlet hole on its side, connecting the upper mold upper layer flow channel, the upper mold lower layer flow channel inlet hole, the upper mold lower layer flow channel, the upper mold lower layer flow channel outlet hole, and the upper mold upper layer flow channel and upper layer flow channel outlet hole, forming a complete inlet and outlet flow channel for the upper mold. The upper mold has upper mold locking bolt holes, which can be used to install it on production equipment. The lower mold structure consists of a front panel and an upper flow channel welded sealing plate, assembled using friction stir welding. The bottom of the lower mold is first welded to the flow channel welded sealing plate using friction stir welding, forming a complete lower mold inlet / outlet flow channel connected by a vertical flow channel and inlet / outlet holes. A vacuum welding sealing plate is then assembled with the bottom of the lower mold and again using friction stir welding, creating a complete vacuum flow channel connecting the lower mold vacuum extraction hole, the lower mold vacuum gas groove, the lower mold vacuum vertical gas groove, the lower mold forming cavity bottom vacuum hole, and the lower mold forming cavity side vacuum hole. The lower mold has lower mold locking bolt holes, which can be used to install it on production equipment.

[0005] As a preferred technical solution of the present invention, a shoe mold with closed-loop vacuum heating and cooling system for friction stir welding is provided. After the upper mold and the inner layer flow channel of the upper mold are welded with friction stir welding, there is a lower layer flow channel.

[0006] As a preferred technical solution of the present invention, a shoe mold with closed-loop vacuum heating and cooling system for friction stir welding is provided. After the upper mold and the outer layer of the upper mold flow channel are welded by friction stir welding, the upper mold flow channel and the lower mold flow channel inlet and outlet holes are formed, and the upper mold flow channel and the upper mold flow channel inlet and outlet holes are connected to form a complete flow channel.

[0007] As a preferred technical solution of the present invention, a shoe mold with closed-loop vacuum heating and cooling system for friction stir welding is provided. The lower mold has a groove on its closed surface and a sealing plate for the upper flow channel of the lower mold. After assembly, it is welded by friction stir welding to form an upper flow channel of the lower mold.

[0008] As a preferred technical solution of the present invention, a shoe mold with closed-loop vacuum heating and cooling system for friction stir welding is provided. The lower mold has a double-layer vertical perforation on the side, one layer is a hot and cold fluid flow channel, and the other layer is a vacuum groove.

[0009] As a preferred technical solution of the present invention, a shoe mold with closed-loop vacuum heating and cooling system for friction stir welding is provided. The bottom of the lower mold has a slot and a lower mold flow channel welding sealing plate. After assembly, they are welded together by friction stir welding to form a lower mold flow channel.

[0010] As a preferred technical solution of the present invention, a shoe mold with closed-loop vacuum heating and cooling system for friction stir welding is provided. The lower mold has a flow channel inlet hole on the side that connects to the upper flow channel of the lower mold, the vertical flow channel of the lower mold, the lower mold flow channel, and the lower mold flow channel outlet hole, forming a complete flow channel for the lower mold.

[0011] As a preferred technical solution of the present invention, a shoe mold with closed-loop vacuum heating and cooling system for friction stir welding is provided. The lower mold has a vacuum welding sealing plate with a vacuum extraction groove, and the lower mold is assembled and then welded together by friction stir welding.

[0012] As a preferred technical solution of the present invention, a shoe mold with closed-loop vacuum heating and cooling system for friction stir welding is provided. The lower mold has a vacuum extraction hole, a vacuum gas groove, a vertical vacuum gas groove, a vacuum hole at the bottom of the lower mold forming cavity, and a vacuum hole on the side of the lower mold forming cavity, which are connected to form a complete vacuum flow channel for the lower mold. Attached Figure Description

[0013] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used to explain the invention through embodiments but do not constitute a limitation thereof. In the drawings: Figure 1 This is an exploded view of the present invention; Figure 2 This is a schematic diagram showing the installation of the present invention. Figure 3 This is a schematic diagram of the outer sealing plate of the upper mold flow channel of the present invention; Figure 4 This is a schematic diagram of the back of the inner flow channel seal of the upper mold of the present invention; Figure 5 This is a front view of the inner flow channel seal of the upper mold of the present invention; Figure 6 This is a schematic diagram of the back of the mold of the present invention; Figure 7 This is a front view of the mold of the present invention; Figure 8 This is a schematic diagram of the welding sealing plate of the upper flow channel of the lower mold of the present invention; Figure 9 This is a front view of the lower mold of the present invention; Figure 10 This is a schematic diagram of the back of the lower mold of the present invention; Figure 11 This is a schematic diagram of the welding sealing plate of the lower flow channel of the lower mold of the present invention; Figure 12 This invention relates to a vacuum welding sealing plate for the lower mold. In the diagram: 1. Upper mold; 2. Inner layer flow channel welded seal of the upper mold; 3. Outer layer flow channel welded sealing plate of the upper mold; 4. Locking bolt hole of the upper mold; 5. Locking bolt of the upper mold; 6. Flow channel inlet hole of the upper mold; 7. Upper layer flow channel of the upper mold; 8. Inlet hole of the lower layer flow channel of the upper mold; 9. Lower layer flow channel of the upper mold; 10. Outlet hole of the lower layer flow channel of the upper mold; 11. Flow channel outlet hole of the upper mold; 12. Lower mold; 13. Upper flow channel welded sealing plate of the lower mold; 14. Lower flow channel welded sealing plate of the lower mold. 15. Vacuum welding sealing plate for lower mold; 16. Mold locking bolt hole for lower mold; 17. Mold locking bolt for lower mold; 18. Runner inlet hole for lower mold; 19. Upper runner for lower mold; 20. Vertical runner hole for lower mold; 21. Lower runner for lower mold; 22. Runner outlet hole for lower mold; 23. Vacuum extraction hole; 24. Vacuum extraction slot for lower mold; 25. Vertical vacuum slot for lower mold; 26. Vacuum extraction hole on the side of the forming cavity for lower mold; 27. Vacuum extraction hole at the bottom of the forming cavity for lower mold. Implementation

[0014] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0015] Please see Figure 1-12 This invention discloses a technical solution: a closed-loop vacuum heating and cooling shoe mold using friction stir welding. The key feature is that an inner layer flow channel welding seal 2 of the upper mold 1 is installed on the back of the upper mold 1 and welded using friction stir welding to form a lower layer flow channel 9. An outer layer welding seal plate 3 of the upper mold flow channel is then welded using friction stir welding to the back of the upper mold 1 and the back of the inner layer flow channel welding seal 2, forming an upper layer flow channel 7. An upper mold flow channel inlet hole 6 is located on the side of the upper mold 1, connecting the upper mold flow channel 7, the lower layer flow channel inlet hole 8, the lower layer flow channel 9, and the lower layer flow channel outlet hole 10. The upper mold flow channel 7 and the upper mold flow channel outlet hole 11 together form a complete upper mold heating and cooling flow channel. The upper mold 2 has upper mold locking bolt holes 4, which can be installed on production equipment using upper mold locking bolts 5. The upper flow channel welding sealing plate 13 of the lower mold is installed on the front side of the lower mold 12 and welded by friction stir welding to form the upper flow channel 19 of the lower mold. The lower flow channel welding sealing plate 14 of the lower mold is first installed on the back side of the lower mold 12 and welded by friction stir welding to form the lower flow channel 21 of the lower mold. There is a lower mold flow channel inlet hole 18 on the side of the lower mold, which connects the lower mold upper flow channel 19, the lower mold vertical hole flow channel 20, the lower mold lower flow channel 21, and the lower mold flow channel outlet hole 22 to form a complete lower mold heating and cooling flow channel.

[0016] A vacuum sealing plate 15 is welded to the back of the lower mold 12 and then installed using friction stir welding to form a vacuum channel 24. Vacuum extraction holes 23 are located on the side of the lower mold, connecting to the vacuum channel 24, a vertical vacuum channel 25, vacuum holes 26 on the side of the forming cavity, and vacuum holes 27 at the bottom of the forming cavity, forming a complete vacuum flow channel. The lower mold 12 has lower mold locking bolt holes 16, and lower mold locking bolts 17 are used for installation on production equipment.

[0017] Working principle of the invention: This type of shoe mold with closed-loop vacuum heating and cooling system using friction stir welding consists of upper and lower molds with welded seals and sealing plates assembled and welded in sequence. All of these components are completed using friction stir welding, forming a complete heating, cooling, and vacuum flow channel with external holes connecting to the internal flow channels. On the side of the upper mold, there are upper mold flow channel inlet holes connecting to the upper layer flow channel, upper mold lower layer flow channel inlet holes, upper mold lower layer flow channel outlet holes, upper mold upper layer flow channel, and upper layer mold flow channel outlet holes, forming a complete heating and cooling inlet and outlet flow channel for the upper mold. The upper mold also has upper mold locking bolt holes, which can be used to install the mold on production equipment. The lower mold has a flow channel inlet on its side, which connects to the upper flow channel, the vertical flow channel, the lower flow channel, and the flow channel outlet, forming a complete heating and cooling inlet / outlet flow channel for the lower mold. A vacuum extraction hole is located on the side of the lower mold, connecting to the vacuum extraction slot, the vertical vacuum slot, the vacuum extraction hole on the side of the forming cavity, and the vacuum extraction hole at the bottom of the forming cavity, forming a complete vacuum flow channel. The lower mold also has lower mold locking bolt holes, which can be used to install the mold on production equipment.

[0018] This invention has the following advantages: This invention provides a closed-loop vacuum heating and cooling shoe mold using friction stir welding. The entire mold is perforated and slotted, and sealed with the same material to solve the problems of air and water leakage caused by aging of traditional soft seals. The upper mold has double-layer heating channels, and the lower mold has vertical perforated channels on the outer side wall of the forming cavity, connecting the upper and lower channels. This structure allows for heat transfer and cooling of the fluid at closer distances during heating and cooling. The vacuuming within the mold cavity improves production quality and reduces the defect rate. This invention provides a closed-loop vacuum heating and cooling shoe mold using friction stir welding, which can improve the speed of heating and cooling and improve production quality.

[0019] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A closed type vacuum heating and cooling shoe mold by friction stir welding characterized in that After the upper mold structure, the upper mold and the upper mold inner layer flow channel welding sealing assembly are completed, the upper mold is welded by friction stir welding, then the upper mold flow channel outer layer welding sealing plate is assembled, and the internal flow channel is formed after the upper mold is welded by friction stir welding again. There are upper mold flow channel inlet holes on the side surface of the upper mold, which are connected with the upper layer flow channel of the upper mold, the lower layer flow channel inlet hole of the upper mold, the lower layer flow channel of the upper mold, the lower layer flow channel outlet hole of the upper mold, the upper layer flow channel of the upper mold, the upper layer flow channel outlet hole of the upper mold, and the upper layer flow channel of the upper mold. The upper mold is a complete inlet and outlet flow channel. The lower mold structure, the front surface of the lower mold and the lower mold upper flow channel welding sealing plate assembly are completed by friction stir welding. The bottom of the lower mold is first welded with the lower mold flow channel welding sealing plate by friction stir welding, then the lower mold vacuum welding sealing plate and the bottom of the lower mold are assembled by friction stir welding again, and the lower mold upper and lower flow channels are formed. The lower mold vertical hole flow channel is connected through the mold flow channel inlet and outlet hole, and a complete lower mold inlet and outlet flow channel is formed. The vacuum air hole is connected with the lower mold vacuum air groove, the lower mold vacuum vertical air groove, the lower mold cavity bottom vacuum hole and the lower mold cavity side vacuum hole. The upper and lower molds have mold locking bolt holes, and the mold locking bolt can be installed on a production equipment. It is a closed type vacuum heating and cooling shoe mold by friction stir welding.

2. A closed die for friction stir welding, heating and cooling of footwear according to claim 1, characterized in that, After the upper mold and the upper mold inner layer flow channel welding sealing assembly are completed by friction stir welding, there is a lower layer flow channel.

3. A closed die for friction stir welding, heating and cooling of footwear according to claim 2, wherein, After the upper mold and the upper mold flow channel outer layer welding sealing plate are welded by friction stir welding, the upper mold upper layer flow channel is formed.

4. A closed die for friction stir welding, heating and cooling of footwear according to claim 3, characterized in that, The upper mold has the upper layer flow channel, the lower layer flow channel and the double layer structure connected with the inlet and outlet hole flow channel.

5. A closed die for a friction stir welded, vacuum heat cooled shoe according to claim 4, wherein, After the lower mold closed surface is grooved and the lower mold upper flow channel welding sealing plate is assembled by friction stir welding, the lower mold upper flow channel is formed.

6. A closed die for a friction stir welded, vacuum heat cooled shoe according to claim 5, wherein, There are double vertical hole flow channels on the side surface of the lower mold cavity, one of which is a cold and hot fluid hole flow channel, and the other is a vacuum air groove.

7. A closed die for a friction stir welded, vacuum heat cooled shoe according to claim 6, wherein, After the lower mold bottom is grooved and the lower mold lower flow channel welding sealing plate is assembled by friction stir welding, the lower mold lower flow channel is formed.

8. A closed die for a friction stir welded, vacuum heat cooled shoe according to claim 7, wherein, There are lower mold flow channel inlet holes on the side surface of the lower mold, which are connected with the lower mold upper flow channel, the lower mold vertical hole flow channel, the lower mold flow channel, the lower mold flow channel outlet hole, and the lower mold complete flow channel.

9. A closed die for a friction stir welded, vacuum heat cooled shoe according to claim 8, wherein, The vacuum air groove on the lower mold vacuum welding sealing plate surface is assembled with the lower mold by friction stir welding.

10. A closed die for a friction stir welded, vacuum heat cooled shoe according to claim 9, wherein, The lower mold vacuum air hole, the lower mold vacuum air groove, the lower mold vacuum vertical air groove, the lower mold cavity bottom vacuum hole and the lower mold cavity side vacuum hole are connected to form a complete lower mold vacuum flow channel.

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