Quick cooling EVA sole demolding mechanism

Abstract

This utility model discloses a rapid cooling EVA sole demolding mechanism, relating to the field of sole demolding technology. It includes a base and a lower mold mounted on the upper end of the base, with an upper mold and a lifting frame mounted on the upper end of the upper mold. An external water tank is located at the upper end of the base, and a water pump is installed on the outside of the water tank. An inlet pipe is located at the output end of the water pump. A lower cooling pipe is located inside the lower mold, and an upper cooling pipe is located inside the upper mold. This rapid cooling EVA sole demolding mechanism, through the arrangement of the lower and upper cooling pipes, allows the lower and upper cooling pipes to be in a connected state when the upper and lower molds are closed. This facilitates simultaneous cooling of both the upper and lower molds, enabling rapid cooling of both ends of the sole, facilitating rapid shaping of the sole, ensuring the integrity of the sole demolding, and improving the efficiency of the mold operation.

Description

Technical Field

[0001] This utility model relates to the field of shoe sole demolding technology, specifically to a rapid cooling EVA shoe sole demolding mechanism. Background Technology

[0002] During the processing of EVA shoe soles, molds are needed to shape the soles. Existing molds can automatically demold after the soles are shaped, ensuring the speed of sole processing. However, existing demolding mechanisms still have certain defects in use. When demolding EVA shoe soles, because the EVA soles are relatively soft when they are first formed, and there is friction between the sides of the EVA soles and the cavity, defects are easily caused on the sides of the EVA soles during demolding, affecting the molding quality of the EVA soles.

[0003] Patent CN221756728U discloses an EVA shoe sole molding mold. It incorporates a cooling tank to cool the lower mold interior, thereby cooling the EVA shoe sole inside the cavity, improving EVA shoe sole molding efficiency and facilitating rapid demolding. A water pump pumps coolant from a water tank and guides it into the cooling tank via a water pipe and inlet pipe. As the coolant passes through the cooling tank, it cools the lower mold. After cooling, the coolant returns to the water tank through a return pipe, achieving coolant recycling and continuous cooling of the lower mold, thus improving the cooling effect and further enhancing EVA shoe sole molding efficiency. This achieves rapid demolding of the EVA shoe sole and solves the problem of poor demolding quality in the aforementioned molding devices.

[0004] In the aforementioned patent, the mold solves the problems mentioned above. However, the mold in the patent still has the following problems: during the cooling process of the mold, coolant needs to be transported through the cooling tank inside the lower mold. However, the cooling tank is only located inside the lower mold, which will cause the lower outer side of the sole to cool down, while the upper part of the sole remains at a high temperature. This can easily cause damage to the sole when the upper mold separates from the upper part of the sole. At the same time, relying solely on the cooling process of the lower mold to complete the cooling process of the sole can easily lead to an excessively long cooling time for the sole, affecting the demolding efficiency of the mold.

[0005] To address the aforementioned issues, there is an urgent need for innovative design based on the existing demolding mechanism. Utility Model Content

[0006] The purpose of this invention is to provide a rapid cooling EVA sole demolding mechanism to solve the problems mentioned in the background art, where the cooling groove is only located inside the lower mold, resulting in cooling on the outer side of the lower end of the sole while the upper end remains at a high temperature. This can easily damage the sole when the upper mold separates from the upper end of the sole. In addition, relying solely on the cooling treatment of the lower mold to complete the cooling treatment of the sole can easily lead to excessively long cooling time for the sole, affecting the demolding efficiency of the mold.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a rapid cooling EVA shoe sole demolding mechanism, comprising a base and a lower mold disposed on the upper end of the base, an upper mold disposed on the upper end of the lower mold, and a lifting frame disposed on the upper end of the upper mold; an external water tank disposed on the upper end of the base, and a water pump installed on the outside of the external water tank, and an inlet pipe disposed on the output end of the water pump; a lower cooling pipe disposed inside the lower mold, and an upper cooling pipe disposed inside the upper mold; a docking structure disposed between the lower mold and the upper mold can ensure that the coolant flows inside the lower cooling pipe and the upper cooling pipe to cool the lower mold and the upper mold simultaneously; a sealing structure disposed between the lower mold and the upper mold can ensure the stability of the cooling flow and cooling of the coolant inside the lower cooling pipe and the upper cooling pipe.

[0008] Preferably, the docking structure includes a fixing block, which is fixedly installed inside the interface between the lower cooling pipe and the upper cooling pipe, and a sliding rod is slidably installed inside the fixing block, while a sealing element is fixedly installed at the end of the sliding rod away from the fixing block.

[0009] Preferably, the sealing element is internally sealed to the lower cooling pipe and the upper cooling pipe respectively, and a return spring is sleeved on the outer side of the sliding rod, with the return spring located between the sealing element and the fixing block.

[0010] Preferably, a lifting member is fixedly installed at the lower end of the seal inside the upper cooling pipe, and the lifting member is located at the upper end of the interface of the lower cooling pipe.

[0011] Preferably, a water outlet pipe is provided on the outer side of the lower mold, and a cooling perforated plate is sleeved on the outer side of the water outlet pipe. A cooling fan is provided at the upper end of the cooling perforated plate, and the water outlet pipe is distributed in an "S" shape inside the cooling perforated plate.

[0012] Preferably, the sealing structure includes a fixed cylinder, which is fixedly installed at the upper end of the lower cooling pipe, and a sliding cylinder is slidably installed inside the fixed cylinder. At the same time, a sliding sealing ring is nested on the lower outer side of the sliding cylinder near the fixed cylinder.

[0013] Preferably, a support spring is provided between the fixed cylinder and the lower cooling pipe, and mating sealing rings are provided on the inner and outer sides of the upper end of the fixed cylinder.

[0014] Preferably, the upper end of the base is provided with a hydraulic push rod, and the upper end of the hydraulic push rod is provided with a lifting plate and a lifting rod, and the upper end of the lifting rod is located inside the mold cavity of the lower mold.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. By setting up the lower cooling pipe and the upper cooling pipe, the interior of the lower cooling pipe and the upper cooling pipe can be connected when the upper mold and the lower mold are closed. This allows for simultaneous cooling of the upper mold and the lower mold, enabling rapid cooling of both the upper and lower ends of the shoe sole. This facilitates rapid shaping of the shoe sole, ensures the integrity of the shoe sole during demolding, and improves the working efficiency of the mold.

[0017] 2. Furthermore, by setting up the sliding cylinder and the support spring, the sealing state of the pipe interface can be ensured after the lower cooling pipe and the upper cooling pipe are connected. At the same time, the sealing ring is used to ensure the sealing effect of the sliding cylinder inside and outside, effectively ensuring the stability of the cooling operation of the demolding mechanism.

[0018] 3. Furthermore, by placing the cooling fan at the top of the water outlet pipe and the cooling perforated plate, the water outlet pipe and the cooling perforated plate can be directly cooled, ensuring the speed at which the mechanism cools the coolant. Attached Figure Description

[0019] Figure 1 This is a top-view three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a frontal sectional view of the three-dimensional structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the front sectional view of the lower cooling pipe of this utility model;

[0022] Figure 4 This is a top view of the lower cooling pipe structure of this utility model;

[0023] Figure 5 This is a schematic diagram of the front sectional view of the sliding cylinder of this utility model;

[0024] Figure 6 This is a bottom-view three-dimensional structural diagram of the cooling perforated plate of this utility model;

[0025] Figure 7 This utility model Figure 3 A magnified structural diagram at point A in the diagram.

[0026] In the diagram: 1. Base; 2. Lower mold; 3. Upper mold; 4. Lifting frame; 5. External water tank; 6. Water pump; 7. Inlet pipe; 8. Lower cooling pipe; 9. Upper cooling pipe; 10. Outlet pipe; 11. Cooling perforated plate; 12. Cooling fan; 13. Fixing block; 14. Sliding rod; 15. Seal; 16. Return spring; 17. Lifting component; 18. Fixing cylinder; 19. Sliding cylinder; 20. Support spring; 21. Sliding sealing ring; 22. Butt sealing ring; 23. Hydraulic push rod; 24. Lifting plate; 25. Lifting rod component. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] In a specific embodiment, this utility model provides the following technical solution: a rapid cooling EVA sole demolding mechanism, such as... Figures 1-7 The basic operating process of the demolding mechanism is shown in the figure.

[0029] The base 1 has a lower mold 2 mounted on its upper end, and an upper mold 3 mounted on the upper end of the lower mold 2. A lifting frame 4 is mounted on the upper end of the upper mold 3. An external water tank 5 is mounted on the upper end of the base 1, and a water pump 6 is installed on the outside of the external water tank 5. An inlet pipe 7 is mounted on the output end of the water pump 6. A lower cooling pipe 8 is installed inside the lower mold 2, and an upper cooling pipe 9 is installed inside the upper mold 3. The docking structure between the lower mold 2 and the upper mold 3 ensures that the coolant flows within the lower cooling pipe 8 and the upper cooling pipe 9, simultaneously cooling both the lower mold 2 and the upper mold 3. The sealing structure between the lower mold 2 and the upper mold 3 ensures the stability of the coolant flow and cooling within the lower cooling pipe 8 and the upper cooling pipe 9. A hydraulic push rod 23 is mounted on the upper end of the base 1, and a lifting plate 24 and a lifting rod 25 are mounted on the upper end of the hydraulic push rod 23. The upper end of the lifting rod 25 is located inside the cavity of the lower mold 2.

[0030] When using this fast-cooling EVA sole demolding mechanism, the lifting frame 4 needs to be lifted up and down by an external power mechanism. As the lifting frame 4 moves up and down, the upper mold 3 and the lower mold 2 will close and separate. During this process, the coolant inside the external water tank 5 needs to be delivered to the lower mold 2 and the upper mold 3 by the water pump 6 to cool the sole inside the mold cavity. After the coolant is discharged, it needs to be cooled by the cooling fan 12. At the same time, during the separation of the sole, the lifting plate 24 and the lifting rod 25 need to be pushed up by the hydraulic push rod 23 to complete the process of the lifting rod 25 pushing the sole out of the mold cavity, thereby completing the automatic demolding process of the demolding mechanism and effectively improving the convenience of using the demolding mechanism.

[0031] In one specific embodiment, such as Figures 1-6 As shown, in order to solve the problem that the existing demolding mechanism can only cool the lower mold 2, the process of the demolding mechanism to cool the upper mold 3 and the lower mold 2 simultaneously is disclosed.

[0032] The docking structure includes a fixing block 13, which is fixedly installed inside the interface of the lower cooling pipe 8 and the upper cooling pipe 9. A sliding rod 14 is slidably installed inside the fixing block 13, and a sealing element 15 is fixedly installed at the end of the sliding rod 14 away from the fixing block 13. The sealing element 15 is sealed to the interior of the lower cooling pipe 8 and the upper cooling pipe 9 respectively. A return spring 16 is sleeved on the outside of the sliding rod 14, and the return spring 16 is located between the sealing element 15 and the fixing block 13. A lifting element 17 is fixedly installed at the lower end of the sealing element 15 inside the upper cooling pipe 9, and the lifting element 17 is located at the upper end of the interface of the lower cooling pipe 8. A water outlet pipe 10 is provided on the outside of the lower mold 2, and a cooling hole plate 11 is sleeved on the outside of the water outlet pipe 10. A cooling fan 12 is provided at the upper end of the cooling hole plate 11. The water outlet pipe 10 is distributed in an "S" shape inside the cooling hole plate 11. The arrangement of the upper cooling pipe 9 inside the upper mold 3 is the same as the arrangement of the lower cooling pipe 8 inside the lower mold 2.

[0033] When using this fast-cooling EVA sole demolding mechanism, during the process of cooling the inside of the demolding mechanism, the coolant inside the external water tank 5 needs to be transported to the inside of the lower cooling pipe 8 through the water inlet pipe 7. At this time, the lower mold 2 and the upper mold 3 are in the mold closing state, so the coolant can enter the inside of the upper cooling pipe 9 through the lower cooling pipe 8. At this time, the inside of the lower cooling pipe 8 and the upper cooling pipe 9 are in the docking and conducting state, so that the coolant can cool and cool the lower mold 2 and the upper mold 3 through the lower cooling pipe 8 and the upper cooling pipe 9, accelerate the hardening of the sole, facilitate the ejection of the sole by the lifting rod 25, and ensure the integrity of the sole demolding.

[0034] Before the lower cooling pipe 8 and the upper cooling pipe 9 are connected, the lifting member 17 needs to move downward and push the seal 15 inside the lower cooling pipe 8 to move downward. At this time, the seal 15 will slide on the outside of the fixed block 13 through the sliding rod 14. At the same time, the seal 15 will squeeze the return spring 16 at its lower end and cause the return spring 16 to contract, so that there is a gap between the lower cooling pipe 8 and the seal 15. At this time, the lifting member 17 will push the seal 15 at its upper end to move upward, so that the seal 15 at its upper end will create a gap with the upper cooling pipe 9, so that the coolant inside the water inlet pipe 7 can enter the interior of the lower cooling pipe 8 and then enter the interior of the upper cooling pipe 9. Finally, it will enter the interior of the lower cooling pipe 8 again through the upper cooling pipe 9 and be discharged through the water outlet pipe 10, thus completing the cooling process of the upper mold 3 and the lower mold 2.

[0035] After the coolant inside the outlet pipe 10 absorbs the heat inside the upper mold 3 and the lower mold 2, the cooling perforated plate 11 absorbs the heat in the coolant through the inlet pipe 7. At the same time, the cooling fan 12 works to cool down the heat inside the inlet pipe 7 and the cooling perforated plate 11. The cooled coolant then re-enters the external water tank 5 through the outlet pipe 10. This completes the cooling process of the demolding mechanism. By simultaneously cooling the upper mold 3 and the lower mold 2, the cooling effect of the sole can be accelerated, ensuring the ease of operation of the demolding mechanism.

[0036] Based on the above embodiments, such as Figures 1-7 As shown, the process of the lower cooling pipe 8 and the upper cooling pipe 9 being tightly connected inside the mechanism is disclosed;

[0037] The sealing structure includes a fixed cylinder 18, which is fixedly installed at the upper end of the lower cooling pipe 8. A sliding cylinder 19 is slidably installed inside the fixed cylinder 18. A sliding sealing ring 21 is nested on the lower outer side of the sliding cylinder 19 near the fixed cylinder 18. A support spring 20 is provided between the fixed cylinder 18 and the lower cooling pipe 8. A mating sealing ring 22 is provided on the inner and outer sides of the upper end of the fixed cylinder 18.

[0038] When using this rapid cooling EVA sole demolding mechanism, the lower cooling pipe 8 and the upper cooling pipe 9 need to be connected. During the connection process, it is necessary to ensure the seal at the interface between the lower cooling pipe 8 and the upper cooling pipe 9. Before the lifting member 17 contacts the lower sealing member 15, the upper end of the sliding cylinder 19 needs to contact the lower end of the upper cooling pipe 9. At the same time, the sliding sealing ring 21 at the upper end of the sliding cylinder 19 will seal with the lower end of the upper cooling pipe 9. The sliding cylinder 19 will be squeezed and moved downward by the upper cooling pipe 9, providing conditions for the sealing member 15 inside the lower cooling pipe 8 to contact the lifting member 17. During the downward movement of the sliding cylinder 19, the support spring 20 will be squeezed and contracted. The fixed cylinder 18 and the sliding cylinder 19 will be kept sealed by the sliding sealing ring 21, thereby completing the connection and sealing between the lower cooling pipe 8 and the upper cooling pipe 9, ensuring the stability of the cooling and temperature reduction of the demolding mechanism, and increasing the overall practicality.

[0039] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rapid cooling EVA sole demolding mechanism, comprising a base (1) and a lower mold (2) disposed on the upper end of the base (1), wherein an upper mold (3) is disposed on the upper end of the lower mold (2), and a lifting frame (4) is disposed on the upper end of the upper mold (3); Its features are: An external water tank (5) is provided at the upper end of the base (1), and a water pump (6) is installed on the outside of the external water tank (5). An inlet pipe (7) is provided at the output end of the water pump (6). A lower cooling pipe (8) is provided inside the lower mold (2), and an upper cooling pipe (9) is provided inside the upper mold (3). The docking structure between the lower mold (2) and the upper mold (3) can ensure that the coolant flows inside the lower cooling pipe (8) and the upper cooling pipe (9) to cool the lower mold (2) and the upper mold (3) at the same time. The sealing structure between the lower mold (2) and the upper mold (3) can ensure the stability of the cooling flow and cooling of the coolant inside the lower cooling pipe (8) and the upper cooling pipe (9).

2. The rapid cooling EVA sole demolding mechanism according to claim 1, characterized in that: The docking structure includes a fixing block (13), which is fixedly installed inside the interface position of the lower cooling pipe (8) and the upper cooling pipe (9). A sliding rod (14) is slidably installed inside the fixing block (13), and a sealing element (15) is fixedly installed at the end of the sliding rod (14) away from the fixing block (13).

3. The rapid cooling EVA sole demolding mechanism according to claim 2, characterized in that: The sealing element (15) is sealed to the interior of the lower cooling pipe (8) and the upper cooling pipe (9) respectively. A return spring (16) is sleeved on the outside of the sliding rod (14), and the return spring (16) is located between the sealing element (15) and the fixing block (13).

4. The rapid cooling EVA sole demolding mechanism according to claim 3, characterized in that: A lifting member (17) is fixedly installed at the lower end of the sealing member (15) inside the upper cooling pipe (9), and the lifting member (17) is located at the upper end of the interface of the lower cooling pipe (8).

5. The rapid cooling EVA sole demolding mechanism according to claim 4, characterized in that: The lower mold (2) is provided with a water outlet pipe (10) on the outside, and a cooling hole plate (11) is sleeved on the outside of the water outlet pipe (10). A cooling fan (12) is provided at the upper end of the cooling hole plate (11), and the water outlet pipe (10) is distributed in an "S" shape inside the cooling hole plate (11).

6. The rapid cooling EVA sole demolding mechanism according to claim 1, characterized in that: The sealing structure includes a fixed cylinder (18), which is fixedly installed at the upper end of the lower cooling pipe (8). A sliding cylinder (19) is slidably installed inside the fixed cylinder (18), and a sliding sealing ring (21) is nested on the lower outer side of the sliding cylinder (19) near the fixed cylinder (18).

7. The rapid cooling EVA sole demolding mechanism according to claim 6, characterized in that: A support spring (20) is provided between the fixed cylinder (18) and the lower cooling pipe (8), and a mating sealing ring (22) is provided on the inner and outer sides of the upper end of the fixed cylinder (18).

8. The rapid cooling EVA sole demolding mechanism according to claim 1, characterized in that: The upper end of the base (1) is provided with a hydraulic push rod (23), and the upper end of the hydraulic push rod (23) is provided with a lifting plate (24) and a lifting rod (25), and the upper end of the lifting rod (25) is located inside the mold cavity of the lower mold (2).

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