Sole forming mold structure

Abstract

The utility model relates to the technical field of shoe sole processing equipment, in particular to a shoe sole forming mold structure which comprises a mold body and a mold cooling mechanism, and the mold cooling mechanism is located on one side of the mold body; a cooling cavity is formed in the side, close to the mold cooling mechanism, of the mold body, and a plurality of cooling holes are formed in the cooling cavity; the mold cooling mechanism comprises a feeding bottom plate, a cooling ring pipe is arranged on the side, close to the cooling cavity, of the feeding bottom plate, a plurality of cooling nozzles are arranged on the cooling ring pipe, an injection molding opening and a water inlet connector are arranged on the feeding bottom plate, and the side, close to the cooling cavity, of the water inlet connector communicates with the cooling ring pipe. According to the shoe sole cooling device, the mold cooling mechanism is arranged, after a shoe sole in the mold body is heated and formed, cooling water is injected into the cooling annular pipe from the water inlet connector, and the cooling water is sprayed out of the cooling nozzles on the cooling annular pipe into the cooling cavity, so that heat on the surface of the mold body is taken away; and part of cooling water enters the mold body through the cooling holes to cool the shoe sole, so that the cooling efficiency is improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of shoe sole processing equipment, in particular to a shoe sole forming die structure. BACKGROUND

[0002] The popcorn shoe sole is made of TUP foaming particles, and the popcorn shoe sole made of the TUP foaming particles is light in quality, good in elasticity, good in buffering, wear-resistant, tear-resistant and long in service life, and can reduce damage to joints during movement, and is very suitable for people who love sports and the middle-aged and the elderly.

[0003] In the process that the popcorn shoe sole is made of the TUP foaming particles, first, the arch support piece is placed into the shoe mold, then the TUP foaming particles are sent into the shoe mold through a mold gun, then high-temperature gas is introduced into the mold gun, so that the TUP foaming particles in the shoe mold are heated and shaped, the TUP foaming particles are bonded to each other, and then cooling forming is performed; at present, after the shoe sole is heated and foamed in the mold cavity of the shoe mold, the air cooling mode is used for cooling, but the cooling efficiency of the air cooling mode needs to be improved, and therefore, further improvement can be made. CONTENT OF THE UTILITY MODEL

[0004] In order to improve the cooling efficiency of the shoe sole, the application provides a shoe sole forming die structure.

[0005] The shoe sole forming die structure provided by the application adopts the following technical scheme:

[0006] The shoe sole forming die structure comprises a die body and a die cooling mechanism, and the die cooling mechanism is located on one side of the die body.

[0007] The die body is provided with a cooling cavity on the side close to the die cooling mechanism, and a plurality of cooling holes are formed in the cooling cavity.

[0008] The die cooling mechanism comprises a feeding bottom plate, the feeding bottom plate is provided with a cooling ring pipe on the side close to the cooling cavity, a plurality of cooling nozzles are arranged on the cooling ring pipe, the cooling nozzles are all directed towards the cooling cavity, the feeding bottom plate is provided with an injection port and a water inlet connector, and the water inlet connector is in communication with the cooling ring pipe on the side close to the cooling cavity.

[0009] By adopting the above technical scheme, the die cooling mechanism is arranged, when the shoe sole in the die body is heated and formed, the cooling water is injected into the cooling ring pipe from the water inlet connector, the cooling water is sprayed out of the cooling nozzles on the cooling ring pipe into the cooling cavity, so as to take away the heat on the surface of the die body, at the same time, part of the cooling water enters the die body through the cooling holes to cool the shoe sole, so as to improve the cooling efficiency.

[0010] Optionally, the mold body comprises an upper die seat and a lower die seat, the upper die seat is provided with an upper die core, the lower die seat is provided with a lower die core, the lower die core is located on the side of the lower die seat away from the upper die core, a plastic cavity is formed on the side of the lower die core close to the lower die seat, a through foaming cavity is formed on the lower die seat, the shape of the foaming cavity is consistent with that of the plastic cavity, and the shapes of the foaming cavity and the plastic cavity are both adapted to the shape of the upper die core, and the cooling cavity is arranged on the side of the lower die core away from the plastic cavity.

[0011] By adopting the above technical scheme, after the mold is closed between the upper die seat and the lower die seat, the upper die core can pass through the foaming cavity and partially enter the inside of the plastic cavity, thereby forming a space for the TUP foaming particles to be foamed and molded.

[0012] Optionally, a reinforcing plate is arranged on the side of the lower die core close to the cooling ring pipe, and a through reinforcing cavity is formed in the reinforcing plate, the shape of the reinforcing cavity being consistent with that of the cooling cavity.

[0013] By adopting the above technical scheme, the reinforcing plate is arranged to reinforce the lower die core, and due to the impact of the cooling water on the side of the cooling cavity, the reinforcing plate is used to reduce the contact between the cooling water and the lower die seat, thereby reducing the corrosion of the cooling water on the reinforcing plate, and thereby increasing the structural stability and durability of the lower die seat.

[0014] Optionally, a plurality of exhaust holes are formed in the outer circumferential side of the lower die core.

[0015] By adopting the above technical scheme, the exhaust holes are used to improve the exhaust performance of the plastic cavity after the mold is closed, and after the heating and molding of the shoe sole are completed, the residual heat can be discharged through the exhaust holes, thereby achieving the effect of cooling.

[0016] Optionally, the number of the exhaust holes is not less than four thousand.

[0017] By adopting the above technical scheme, the number of the exhaust holes is not less than four thousand, and by increasing the number of the exhaust holes, the discharge efficiency of the residual heat is improved, thereby improving the cooling efficiency.

[0018] Optionally, a plurality of positioning pins are arranged in the plastic cavity, and the positioning pins are used to position the placement position of the arch support piece.

[0019] By adopting the above technical scheme, the positioning pins are used to position the arch support piece, thereby increasing the accuracy of the placement position of the arch support piece, and thereby reducing the situation that the finished shoe sole is unqualified due to the deviation of the placement position of the arch support piece.

[0020] Optionally, a plurality of fixing rods are arranged on the side of the feeding bottom plate away from the cooling ring pipe, and the fixing rods are arranged around the injection port.

[0021] Through the above technical scheme, after the mold gun is inserted into the injection port, the mold gun is fixed through the fixing rod, so that the stability of injection of the mold gun into the mold body is increased.

[0022] Optionally, the lower die core is provided with a through feeding port, the feeding port is arranged through the cooling cavity and the plastic cavity, and the center of the feeding port and the injection port is located on the same central axis.

[0023] Through the above technical scheme, the center of the feeding port and the injection port is located on the same central axis, so that the position of the mold gun is kept stable during the injection process.

[0024] In summary, the present application has at least one of the following beneficial technical effects:

[0025] 1. The mold cooling mechanism is provided, when the sole in the mold body is heated and formed, the cooling water is injected into the cooling ring pipe from the water inlet joint, the cooling water is sprayed into the cooling cavity from the cooling spray head on the cooling ring pipe, so that the heat on the surface of the mold body is taken away, at the same time, part of the cooling water enters the mold body through the cooling hole to cool the sole, so that the cooling efficiency is improved;

[0026] 2. The reinforcing plate is provided, the lower die core is reinforced by the reinforcing plate, due to the impact of the cooling water on one side of the cooling cavity, the reinforcing plate is used to reduce the contact between the cooling water and the lower die seat, so as to reduce the corrosion of the cooling water on the reinforcing plate, so as to increase the structural stability and durability of the lower die seat;

[0027] 3. The exhaust hole is used to improve the exhaust performance of the plastic cavity after the mold is closed, after the heating and forming of the sole are completed, the residual heat can be discharged through the exhaust hole, so as to realize the cooling effect. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 is a schematic view of the mold closing structure of the upper die seat and the lower die seat in the embodiment of the present application.

[0029] Figure 2 is a schematic view of one side of the mold opening structure of the upper die seat and the lower die seat in the embodiment of the present application.

[0030] Figure 3 is a schematic view of the other side of the mold opening structure of the upper die seat and the lower die seat in the embodiment of the present application.

[0031] Figure 4 is a schematic view of the feeding bottom plate structure in the embodiment of the present application.

[0032] BRIEF DESCRIPTION OF DRAWINGS:

[0033] 1, mold body; 11, upper die seat; 12, lower die seat; 13, upper die core; 14, lower die core; 141, exhaust hole; 15, shaping cavity; 16, cooling cavity; 161, feeding port; 162, cooling hole; 17, foaming cavity; 2, mold cooling mechanism; 21, feeding bottom plate; 22, force bearing column; 23, cooling ring pipe; 24, injection port; 25, water inlet connector; 26, cooling nozzle; 3, reinforcing plate; 31, reinforcing cavity; 4, positioning bolt; 5, fixed rod. DETAILED DESCRIPTION

[0034] The following will be described in detail in combination with the accompanying drawings Figures 1-4 The application is further described in detail.

[0035] The embodiment of the application discloses a shoe sole forming mold structure.

[0036] Reference Figures 1-4 A shoe sole forming mold structure comprises a mold body 1 and a mold cooling mechanism 2, and the mold cooling mechanism 2 is located on one side of the mold body 1, wherein,

[0037] The mold body 1 comprises an upper die seat 11 and a lower die seat 12 in a rectangular shape, wherein the lower die seat 12 is fixedly arranged during actual processing, the upper die seat 11 is driven to perform a mold closing or mold opening action with the lower die seat 12, the upper die core 13 is arranged on the side of the upper die seat 11 close to the lower die seat 12, the lower die core 14 is arranged on the side of the lower die seat 12 away from the upper die seat 11, the shaping cavity 15 is formed in the lower die core 14 on the side close to the lower die seat 12, the cooling cavity 16 is formed in the lower die core 14 on the other side, the lower die seat 12 is provided with a through foaming cavity 17 for mold closing with the upper die core 13 on the upper die seat 11, the foaming cavity 17 is communicated with the shaping cavity 15, the shape of the foaming cavity 17 is consistent with the shape of the shaping cavity 15, and the shapes of the foaming cavity 17 and the shaping cavity 15 are matched with the shape of the upper die core 13, so that when the upper die seat 11 moves to the lower die seat 12 for mold closing, the upper die core 13 passes through the foaming cavity 17 and partially enters the inside of the shaping cavity 15, thereby forming a space for TUP foaming particles to be foamed and formed;

[0038] The mold cooling mechanism 2 comprises a rectangular feeding base plate 21 located on one side of the lower mold base 12 where the lower mold core 14 is arranged, and force bearing columns 22 are arranged at the four corners of the side of the feeding base plate 21 close to the lower mold core 14, which leave enough installation space between the feeding base plate 21 and the lower mold core 14 by means of the force bearing columns 22. A cooling ring pipe 23 is arranged on the side of the feeding base plate 21 close to the lower mold core 14, and a plastic injection port 24 and a water inlet connector 25 are arranged on the side of the feeding base plate 21 away from the lower mold core 14. The water inlet connector 25 is provided with an inlet for the cooling ring pipe 23 to access cooling water. A through feeding port 161 is arranged on the cooling cavity 16, which is in communication with the plastic forming cavity 15 through the lower mold core 14, and the center of the feeding port 161 and the plastic injection port 24 are located on the same central axis. A plurality of cooling nozzles 26 are arranged on the side of the cooling ring pipe 23 close to the lower mold core 14, which are arranged in a spaced and surrounding manner on the cooling ring pipe 23, so as to surround the lower mold core 14. Each cooling ring pipe 23 is arranged towards the cooling cavity 16 in the lower mold core 14, so that the water outlet direction of the cooling nozzle 26 is towards the cooling cavity 16. In order to achieve better cooling effect of the cooling cavity 16, a plurality of cooling holes 162 are arranged along the length direction of the cooling cavity 16, which are arranged through the lower mold core 14 to the plastic forming cavity 15, and the diameter of the cooling holes 162 is smaller than the diameter of the TUP foaming particles.

[0039] In the actual processing process, the upper mold base 11 is close to the lower mold base 12 to form a space for the TUP foaming particles to be foamed and formed. Then, the mold gun sequentially passes through the plastic injection port 24 on the feeding base plate 21 and the feeding port 161 in the cooling cavity 16, and the TUP foaming particles are injected into the plastic forming cavity 15 through the feeding port 161. After the injection is completed, the TUP foaming particles in the plastic forming cavity 15 are heated and shaped by high-temperature hot gas in the mold gun until the sole is formed. The ventilation is ended, and then cooling water is injected into the cooling ring pipe 23 from the water inlet connector 25. The cooling water is sprayed into the cooling cavity 16 from the cooling nozzles 26 on the cooling ring pipe 23, so as to take away the heat on the surface of the mold body 1. At the same time, part of the cooling water enters the mold body 1 through the cooling holes 162 to cool the sole, so as to improve the cooling efficiency.

[0040] Reference Figure 2 , 4Specifically, in the embodiment, the lower die core 14 is fixedly provided with a reinforcing plate 3 on the side close to the cooling ring pipe 23, the reinforcing plate 3 has the same shape as the lower die core 14, a reinforcing cavity 31 is formed in the reinforcing plate 3, the reinforcing cavity 31 has the same shape as the cooling cavity 16, the lower die core 14 is reinforced by the reinforcing plate 3, due to the impact of the cooling water on the side of the cooling cavity 16, the contact between the cooling water and the lower die seat 12 is reduced by the reinforcing plate 3, so as to reduce the corrosion of the cooling water on the reinforcing plate 3, thereby increasing the structural stability and durability of the lower die seat 12.

[0041] With reference to Figure 2 Specifically, in the embodiment, the lower die core 14 is fixedly provided with a reinforcing plate 3 on the side close to the cooling ring pipe 23, the reinforcing plate 3 has the same shape as the lower die core 14, a reinforcing cavity 31 is formed in the reinforcing plate 3, the reinforcing cavity 31 has the same shape as the cooling cavity 16, the lower die core 14 is reinforced by the reinforcing plate 3, due to the impact of the cooling water on the side of the cooling cavity 16, the contact between the cooling water and the lower die seat 12 is reduced by the reinforcing plate 3, so as to reduce the corrosion of the cooling water on the reinforcing plate 3, thereby increasing the structural stability and durability of the lower die seat 12.

[0042] With reference to Figure 3 Specifically, in the embodiment, the lower die core 14 is fixedly provided with a reinforcing plate 3 on the side close to the cooling ring pipe 23, the reinforcing plate 3 has the same shape as the lower die core 14, a reinforcing cavity 31 is formed in the reinforcing plate 3, the reinforcing cavity 31 has the same shape as the cooling cavity 16, the lower die core 14 is reinforced by the reinforcing plate 3, due to the impact of the cooling water on the side of the cooling cavity 16, the contact between the cooling water and the lower die seat 12 is reduced by the reinforcing plate 3, so as to reduce the corrosion of the cooling water on the reinforcing plate 3, thereby increasing the structural stability and durability of the lower die seat 12.

[0043] With reference to Figure 2 Specifically, in the embodiment, the lower die core 14 is fixedly provided with a reinforcing plate 3 on the side close to the cooling ring pipe 23, the reinforcing plate 3 has the same shape as the lower die core 14, a reinforcing cavity 31 is formed in the reinforcing plate 3, the reinforcing cavity 31 has the same shape as the cooling cavity 16, the lower die core 14 is reinforced by the reinforcing plate 3, due to the impact of the cooling water on the side of the cooling cavity 16, the contact between the cooling water and the lower die seat 12 is reduced by the reinforcing plate 3, so as to reduce the corrosion of the cooling water on the reinforcing plate 3, thereby increasing the structural stability and durability of the lower die seat 12.

[0044] The implementation principle of the sole forming mold structure in the embodiment is as follows: the upper die seat 11 is close to the lower die seat 12 to form a space for TUP foaming particles to be foamed and formed, then the mold gun passes through the injection port 24 on the feeding bottom plate 21 and the feeding port 161 in the cooling cavity 16 in sequence, the TUP foaming particles are injected into the shaping cavity 15 through the feeding port 161, after the injection is completed, the TUP foaming particles in the shaping cavity 15 are heated and shaped by high-temperature hot gas in the mold gun until the sole is formed, the ventilation is ended, then the cooling water is injected into the cooling ring pipe 23 from the water inlet joint 25, the cooling water is sprayed into the cooling cavity 16 from the cooling spray head 26 on the cooling ring pipe 23, so as to take away the heat on the surface of the mold body 1, at the same time, part of the cooling water enters the mold body 1 through the cooling hole 162 to cool the sole, so as to improve the cooling efficiency.

[0045] The embodiments of the present application are preferred embodiments of the present application, and are not intended to limit the protection scope of the present application, wherein the same parts are denoted by the same reference numerals. Therefore, any equivalent changes made on the structure, shape, and principle of the present application should be covered by the protection scope of the present application.

Claims

1. A shoe sole forming mold structure, characterized in that: It includes a mold body (1) and a mold cooling mechanism (2), wherein the mold cooling mechanism (2) is located on one side of the mold body (1); The mold body (1) is provided with a cooling cavity (16) on the side near the mold cooling mechanism (2), and the cooling cavity (16) is provided with a plurality of cooling holes (162); The mold cooling mechanism (2) includes a feeding base plate (21). A cooling ring pipe (23) is provided on the side of the feeding base plate (21) near the cooling chamber (16). A plurality of cooling nozzles (26) are provided on the cooling ring pipe (23). The spray direction of the cooling nozzles (26) is all towards the cooling chamber (16). An injection port (24) and a water inlet connector (25) are provided on the feeding base plate (21). The water inlet connector (25) is connected to the cooling ring pipe (23) on the side near the cooling chamber (16).

2. The shoe sole forming mold structure according to claim 1, characterized in that: The mold body (1) includes an upper mold base (11) and a lower mold base (12). An upper mold core (13) is provided on the upper mold base (11), and a lower mold core (14) is provided on the lower mold base (12). The lower mold core (14) is located on the side of the lower mold base (12) away from the upper mold core (13). A molding cavity (15) is opened on the side of the lower mold core (14) close to the lower mold base (12). A through foaming cavity (17) is opened on the lower mold base (12). The shape of the foaming cavity (17) is consistent with that of the molding cavity (15), and the shapes of the foaming cavity (17) and the molding cavity (15) are adapted to the shape of the upper mold core (13). The cooling cavity (16) is located on the side of the lower mold core (14) away from the molding cavity (15).

3. The shoe sole forming mold structure according to claim 2, characterized in that: The lower mold core (14) is provided with a reinforcing plate (3) on the side near the cooling ring pipe (23). The reinforcing plate (3) has a through reinforcing cavity (31) and the shape of the reinforcing cavity (31) is consistent with that of the cooling cavity (16).

4. The shoe sole forming mold structure according to claim 2, characterized in that: The lower mold core (14) has several vent holes (141) along its outer periphery.

5. The shoe sole forming mold structure according to claim 4, characterized in that: The number of the aforementioned exhaust ports (141) is not less than four thousand.

6. The shoe sole forming mold structure according to claim 2, characterized in that: The molding cavity (15) is provided with several positioning pins (4), which are used to position the foot arch support plate.

7. The shoe sole forming mold structure according to claim 1, characterized in that: The feed base plate (21) is provided with a number of fixing rods (5) on the side away from the cooling ring pipe (23), and the number of fixing rods (5) are arranged around the injection port (24).

8. The shoe sole forming mold structure according to claim 2, characterized in that: The lower mold core (14) has a through-hole (161) which is disposed through the cooling cavity (16) and the molding cavity (15), and the center of the inlet (161) and the injection port (24) are located on the same central axis.

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