Low-energy shoemaking mold and working method thereof

By introducing pneumatic opening and closing components and heat insulation boards into the shoe making molds, the steam supply is automatically controlled, and the problem of high-temperature steam waste is solved, and the efficient use of heat is achieved, reducing energy consumption and production time is achieved.

CN115230058BActive Publication Date: 2025-08-19QUANZHOU YUHUAN MOULD CO LTD
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Patent Information

Application Number
CN202210931226.8
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-08-04
Publication Date
2025-08-19
Estimated Expiration
2042-08-04

AI Technical Summary

Technical Problem

When existing shoe molds produce personalized custom soles, there is a problem of high-temperature steam waste, resulting in increased heat loss and energy consumption.

Method used

The low-energy shoemaking mold is used to automatically control the supply of high-temperature steam by setting up pneumatic opening and closing components and heat insulation plates in the mold, and only the molding chambers that require fillers are heated, and the vacant chambers are preheated with residual steam to reduce the steam usage.

Benefits of technology

Effectively utilize high-temperature steam heat to reduce heat loss, shorten production time, and reduce shoemaking energy consumption.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention relates to a low-energy shoemaking mold and a working method. The low-energy shoemaking mold includes a mounting frame and two forming layers arranged on the mounting frame. The two forming layers are arranged one above the other. A heat insulation plate is detachably installed between the two forming layers. Each forming layer includes multiple fixed molds and multiple movable molds. The mounting frame is provided with a fixed plate. A movable plate is slidably fitted on the fixed plate. The movement direction of the movable plate points to the fixed plate. Multiple fixed molds are fixedly mounted on the fixed plate. Multiple movable molds are fixed on the movable plate. The positions of the multiple fixed molds and the multiple movable molds correspond one to one. A feed hole and an air intake duct are provided on the fixed plate corresponding to each fixed mold. The feed hole and the air intake duct are both connected to the mold cavity of the corresponding fixed mold. A pneumatic opening and closing component is installed in the air intake duct. The low-energy shoemaking mold of the present invention can effectively utilize the heat of high-temperature steam and reduce the energy consumption of shoemaking.
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Description

Technical Field

[0001] The invention relates to the technical field of shoe molds, in particular to a low-energy consumption shoemaking mold and a working method thereof. Background Art

[0002] The existing foaming sole forming mold is installed on a forming device that can be matched up and down. The foaming sole forming mold includes two outer mold bases that can be closed to each other and two inner molds that are tightly installed in the outer mold bases, and a forming cavity is formed between the inner molds. The forming device is controlled to match and the outer mold base is moved to the mold closing position. The plastic raw material is placed in the forming cavity, and then the forming cavity is heated. The plastic raw material in the forming cavity is foamed into shoe material. One heating method is to continuously inject high-temperature steam into the forming cavity and use the heat of the high-temperature steam to heat the plastic raw material. When shoemaking companies accept personalized customized soles, all forming cavities on the forming equipment are not exactly the same. Different forming cavities produce different soles. In some cases, only part of the soles need to be produced, and only part of the forming cavities on the forming equipment are filled, and the remaining forming cavities remain vacant. When high-temperature steam is injected into the forming mold, all forming cavities will be connected to the high-temperature steam, which causes the high-temperature steam leading to the vacant forming cavities to be wasted, resulting in heat waste. Summary of the Invention

[0003] In order to overcome the technical defects of the prior art, the present invention provides a low-energy shoemaking mold and a working method thereof, which can effectively utilize the heat of high-temperature steam and reduce the energy consumption of shoemaking.

[0004] The technical solution adopted by the present invention is: a low-energy shoemaking mold, including a mounting frame and two molding layers arranged on the mounting frame, the two molding layers are arranged up and down, and a heat insulation plate is detachably installed between the two molding layers. Each molding layer includes multiple fixed molds and multiple movable molds. The mounting frame is provided with a fixed plate, and a movable plate is slidably matched on the mounting frame. The movement direction of the movable plate points to the fixed plate. The multiple fixed molds are fixed on the fixed plate, and the multiple movable molds are fixed on the movable plate. The positions of the multiple fixed molds and the multiple movable molds correspond one to one. A feed hole and an air intake pipe are provided on the fixed plate corresponding to each solid mold, and the feed hole and the air intake pipe are connected to the mold cavity of the corresponding solid mold, and a pneumatic opening and closing component is installed in the air intake pipe.

[0005] Preferably, the pneumatic opening and closing assembly includes a closing plate and an adjustable elastic assembly. The closing plate is rotatably mounted in the air intake duct via a rotating shaft, and the rotation axis of the closing plate is close to the upper end of the closing plate. The adjustable elastic assembly is mounted outside the air intake duct and is transmission-connected to the rotating shaft. When the elastic force of the adjustable elastic assembly is in a free state, the closing plate opens the air intake duct.

[0006] Preferably, the adjustable elastic force component includes a connecting frame, a return spring and a mounting rod, the two ends of the connecting frame are respectively transmission-connected to the two ends of the rotating shaft, the mounting rod is vertically connected to the outside of the air intake duct, the first end position of the return spring is adjustably mounted on the mounting rod, and the second end position of the return spring is adjustably mounted on the connecting frame.

[0007] Preferably, the upper end of the connecting frame is provided with a vertical segment, the first end of the return spring is connected to the mounting rod through a first adjusting block, the first adjusting block is sleeved and slidably fitted on the mounting rod, a first positioning screw is threaded through the first adjusting block, the end of the first positioning screw abuts on the mounting rod to thereby fix the first adjusting block, the second end of the return spring is connected to the vertical segment of the connecting frame through a second adjusting block, the second adjusting block is sleeved and slidably fitted on the vertical segment of the connecting frame, a second positioning screw is threaded through the second adjusting block, the end of the second positioning screw abuts on the vertical segment of the connecting frame to thereby fix the second adjusting block.

[0008] Preferably, a first limit stop bar and a second limit stop bar are provided in the air intake duct, the first limit stop bar cooperates with the outer edge of the closing plate below the rotating shaft, and the second limit stop bar cooperates with the outer edge of the closing plate above the rotating shaft.

[0009] Preferably, a horizontal sliding frame is provided in the middle of the mounting frame, a movable positioning assembly is provided at one end of the sliding frame close to the fixed plate, a limiting assembly is provided at one end of the sliding frame away from the fixed plate, and both ends of the heat insulation board are respectively installed in the sliding frame through the limiting assembly and the movable positioning assembly.

[0010] Preferably, the movable positioning assembly includes two L-shaped workpieces symmetrically arranged up and down, and the two L-shaped workpieces are respectively abutted against the upper and lower sides of one end of the heat insulation plate close to the fixed plate. Both L-shaped workpieces can be rotatably mounted on the sliding frame, and the horizontal segment of the upper L-shaped workpiece is connected to the sliding frame through a first tension spring, and the horizontal segment of the lower L-shaped workpiece is connected to the sliding frame through a second tension spring.

[0011] Preferably, the limiting assembly includes a baffle and a pin shaft, the lower end of the baffle is hinged to the lower end of the sliding frame, a first sleeve is provided on the baffle, and a second sleeve cooperating with the first sleeve is provided on the sliding frame, and the pin shaft is passed through the first sleeve and the second sleeve.

[0012] Preferably, a mold clamping cylinder for driving the movable plate to move is provided at the right end of the mounting frame, a plurality of guide columns are provided on the mounting frame, and the movable plate is slidably matched with the plurality of guide columns through a plurality of sliding sleeves.

[0013] A low-energy shoemaking mold working method, the working method comprising:

[0014] S1, the movable plate moves toward the fixed plate, so that the fixed mold and the movable mold are combined to form a molding cavity, and the material is injected into the molding cavity of the upper molding layer through the feed port;

[0015] S2. High-temperature steam is injected into the molding cavity through the air inlet pipe and maintained for a period of time. During this process, the pneumatic opening and closing components of the upper molding layer remain open, and the pneumatic opening and closing components of the lower molding layer remain closed;

[0016] S3, stop supplying high-temperature steam and cool the fixed mold and movable mold of the upper molding layer. After cooling, the movable plate moves away from the fixed plate, the fixed mold and movable mold are separated, and the finished product is taken out from the upper molding layer;

[0017] S4, return to S1 until a predetermined number of finished products are obtained from the upper forming layer;

[0018] S5, the movable plate moves toward the fixed plate, so that the fixed mold and the movable mold are combined to form a molding cavity, and the material is injected into the molding cavity of the lower molding layer through the feed port;

[0019] S6. Injecting high-temperature steam into the molding cavity through the air inlet pipe and maintaining it for a period of time. During this process, the pneumatic opening and closing components of the lower molding layer remain open, and the pneumatic opening and closing components of the upper molding layer remain closed;

[0020] S7, stop supplying high-temperature steam, cool the fixed mold and movable mold of the lower molding layer, and after cooling, move the movable plate away from the fixed plate, separate the fixed mold and movable mold, and take out the finished product from the lower molding layer;

[0021] S8, return to S5, until a predetermined number of finished products are obtained from the lower forming layer;

[0022] S9. Return to S1.

[0023] The beneficial effects of the present invention are: when the low-energy shoemaking mold of the present invention is in use, different fixed molds and movable molds are set on the upper molding layer and the lower molding layer. When a sole needs to be produced, the material is filled in the molding cavity of the corresponding molding layer, and then high-temperature steam is supplied. The pneumatic opening and closing component will automatically cut off the high-temperature steam to the vacant molding cavity. A large amount of high-temperature steam will not be injected into the vacant molding cavity, but the vacant molding cavity will be preheated by the residual high-temperature steam in the air intake pipe, so that the filling material has a higher temperature during molding, and the heat of the high-temperature steam is fully utilized. The low-energy shoemaking mold of the present invention can preheat the vacant mold, so that the amount of high-temperature steam used in this part of the mold during molding is reduced, thereby shortening the production time. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a cross-sectional view of the low-energy shoemaking mold of the present invention.

[0025] Figure 2 for Figure 1 A partial enlarged view of point A in the middle.

[0026] Figure 3 for Figure 1 A partial enlarged view of point B in the middle.

[0027] Figure 4 for Figure 1 A partial enlarged view of point B in the middle.

[0028] Figure 5 This is a left side view of the sliding frame.

[0029] Figure 6 Schematic diagram of the assembly of the limit assembly of the present invention.

[0030] Explanation of reference numerals: 1. mounting frame; 101. fixing plate; 1011. feed hole; 1012. air inlet pipe; 10121. closing plate; 10122. rotating shaft; 10123. connecting frame; 10124. return spring; 10125. mounting rod; 10126. first adjusting block; 10127. second adjusting block; 10128. first positioning screw; 10129. second positioning screw; 10121 0. First limit stop bar; 101211. Second limit stop bar; 102. Movable plate; 1021. Sliding sleeve; 103. Heat insulation plate; 104. Sliding frame; 1041. L-shaped workpiece; 1042. First tension spring; 1043. Second tension spring; 1044. Baffle; 1045. Pin; 1046. First sleeve; 1047. Second sleeve; 105. Guide column; 2. Fixed mold; 3. Moving mold; 4. Clamping cylinder. DETAILED DESCRIPTION

[0031] The present invention will be further described below in conjunction with the accompanying drawings:

[0032] like Figures 1 to 6As shown, this embodiment provides a low-energy shoemaking mold, including a mounting frame 1 and two molding layers arranged on the mounting frame 1, the two molding layers are arranged up and down, and a heat insulation plate 103 is detachably installed between the two molding layers. Each molding layer includes multiple fixed molds 2 and multiple movable molds 3. The mounting frame 1 is provided with a fixed plate 101, and the mounting frame 1 is slidably matched with a movable plate 102. The movable plate 102 The direction of movement points to the fixed plate 101. The multiple fixed molds 2 are fixedly mounted on the fixed plate 101, and the multiple movable molds 3 are fixed on the movable plate 102. The positions of the multiple fixed molds 2 and the multiple movable molds 3 correspond to each other. When each of the fixed molds 2 and the multiple movable molds 3 is closed, a molding cavity for molding the sole is formed. The fixed plate 101 corresponding to each fixed mold 2 is provided with a feed hole 1011 and an air intake pipe 1012. The feed hole 1011 and the air intake pipe 1012 are both connected to the mold cavity of the corresponding fixed mold 2. A pneumatic opening and closing component is installed in the air intake pipe 1012. The low-energy shoemaking mold of this embodiment can effectively utilize the heat of high-temperature steam and reduce heat consumption.

[0033] In this embodiment, the pneumatic opening and closing component includes a closing plate 10121 and an adjustable elastic component. The closing plate 10121 is rotatably installed in the air intake pipe 1012 through a rotating shaft 10122, and the rotating shaft 10122 line of the closing plate 10121 is close to the upper end of the closing plate 10121. The adjustable elastic component is installed outside the air intake pipe 1012 and is transmission-connected to the rotating shaft 10122. When the elastic force of the adjustable elastic component is in a free state, the closing plate 10121 opens the air intake pipe 1012. When high-temperature steam is passed into the mold, the gas flow rate in the air intake pipe 1012 corresponding to the mold cavity that is not filled with material is faster. The high-temperature steam will push the closing plate 10121 to close the air intake pipe 1012. In this way, a large amount of high-temperature steam will not be injected into the empty molding cavity, thereby reducing heat loss. The adjustable elastic component includes a connecting frame 10123, a return spring 10124 and a mounting rod 10125. The two ends of the connecting frame 10123 are respectively connected to the two ends of the rotating shaft 10122. The mounting rod 10125 is vertically connected to the outside of the air intake pipe 1012. The first end position of the return spring 10124 can be adjusted and installed on the mounting rod 10125. The second end position of the return spring 10124 can be adjusted and installed on the connecting frame 10123. The thrust required to push the closing plate 10121 to rotate is changed by adjusting the position of the return spring 10124. The user can adjust the position of the return spring 10124 according to the size of the space in the molding cavity to ensure that the air intake pipe 1012 can be effectively closed.

[0034] In this embodiment, the upper end of the connecting frame 10123 is provided with a vertical segment, and the first end of the return spring 10124 is connected to the mounting rod 10125 through a first adjusting block 10126, the first adjusting block 10126 is sleeved and slidably fitted on the mounting rod 10125, the first adjusting block 10126 is threaded with a first positioning screw 10128, the end of the first positioning screw 10128 abuts on the mounting rod 10125 to fix the first adjusting block 10126, the second end of the return spring 10124 is connected to the vertical segment of the connecting frame 10123 through a second adjusting block 10127, the second adjusting block 10127 is sleeved and slidably fitted on the vertical segment of the connecting frame 10123, the second adjusting block 10127 is threaded with a second positioning screw 10129, the end of the second positioning screw 10129 abuts on The second adjusting block 10127 is fixed on the vertical segment of the connecting frame 10123. By adjusting the position of the first adjusting block 10126 on the mounting rod 10125 and the position of the second adjusting block 10127 on the vertical segment of the connecting frame 10123, the force required to push the closing plate 10121 can be changed, that is, the flow rate of the high-temperature steam to push the closing plate 10121 changes. When there is less material in the molding cavity, the flow rate of the high-temperature steam is faster, and the thrust exerted on the closing plate 10121 is large. In order to ensure that the high-temperature steam reaches the molding cavity, the first adjusting block 10126 and the second adjusting block 10127 can be moved downward at this time so that the closing plate 10121 will not block the air intake pipe 1012. The user can adjust the position of the first adjusting block 10126 and the second adjusting block 10127 according to the capacity of the molding cavity, the amount of material in the molding cavity, and the size of the material particles. Preferably, a first limit stop bar 101210 and a second limit stop bar 101211 are provided in the air intake duct 1012, the first limit stop bar 101210 cooperates with the outer edge of the closing plate 10121 below the rotating shaft 10122, and the second limit stop bar 101211 cooperates with the outer edge of the closing plate 10121 above the rotating shaft 10122.

[0035] In this embodiment, a horizontal sliding frame 104 is provided in the middle of the mounting frame, and a movable positioning component is provided at one end of the sliding frame 104 close to the fixed plate 101, and a limiting component is provided at one end of the sliding frame 104 away from the fixed plate 101. Both ends of the heat insulation plate 103 are respectively installed in the sliding frame 104 through the limiting component and the movable positioning component.

[0036] In this embodiment, the movable positioning assembly includes two L-shaped workpieces 1041 symmetrically arranged in the upper and lower parts, and the two L-shaped workpieces 1041 are respectively abutted against the upper and lower sides of the insulation plate 103 close to one end of the fixed plate 101, and the two L-shaped workpieces 1041 can be rotatably mounted on the sliding frame 104. The horizontal segment of the upper L-shaped workpiece 1041 is connected to the sliding frame 104 through a first tension spring 1042, and the horizontal segment of the lower L-shaped workpiece 1041 is connected to the sliding frame 104 through a second tension spring 1043. The function of the insulation plate 103 is to prevent the heat of the preheated mold from being transferred to the cooled mold in large quantities, thereby reducing heat loss. The insulation plate 103 needs to be replaced after long-term use. When replacing the insulation plate 103, the two L-shaped workpieces 1041 will push the insulation plate 103 to the left, making it convenient for workers to take out the insulation plate 103.

[0037] In this embodiment, the limiting assembly includes a baffle 1044 and a pin 1045. The lower end of the baffle 1044 is hinged to the lower end of the sliding frame 104. The upper end of the baffle 1044 is provided with a first sleeve 1046. The sliding frame 104 is provided with a second sleeve 1047 that cooperates with the first sleeve 1046. When the heat insulation board 103 is blocked by the limiting assembly, the first sleeve 1046 and the second sleeve 1047 are coaxial, and the pin 1045 is passed through the first sleeve 1046 and the second sleeve 1047. When disassembling the heat insulation board 103, the pin 1045 is first removed, and the baffle 1044 is rotated downward. Under the action of the first tension spring 1042 and the second tension spring 1043, the heat insulation board 103 is pushed out.

[0038] In this embodiment, a mold clamping cylinder for driving the movable plate 102 to move is provided at the right end of the mounting frame. A plurality of guide posts 105 are provided on the mounting frame. The movable plate 102 is slidably engaged with the plurality of guide posts 105 via a plurality of sliding sleeves 1021 .

[0039] This embodiment also provides a working method of a low-energy shoemaking mold, the working method comprising:

[0040] S1, the movable plate 102 moves toward the fixed plate 101, so that the fixed mold 2 and the movable mold 3 are combined to form a molding cavity, and the material is injected into the molding cavity of the upper molding layer through the feed port;

[0041] S2. High-temperature steam is injected into the molding cavity through the air inlet pipe 1012 and maintained for a period of time. During this process, the pneumatic opening and closing components of the upper molding layer remain open, and the pneumatic opening and closing components of the lower molding layer remain closed;

[0042] S3. Stop the high-temperature steam supply. At this time, all pneumatic opening and closing components remain in the open state. Due to the pressure difference, the residual high-temperature steam in the steam pipe will enter the mold cavity of the lower molding layer, preheating the solid mold 2 and the movable mold 3 of the lower molding layer. Then, the solid mold 2 and the movable mold 3 of the upper molding layer are cooled. After cooling, the movable plate 102 moves away from the fixed plate 101, and the solid mold 2 and the movable mold 3 are separated, and the finished product is taken out from the upper molding layer.

[0043] S4, return to S1 until a predetermined number of finished products are obtained from the upper forming layer;

[0044] S5, the movable plate 102 moves toward the fixed plate 101, so that the fixed mold 2 and the movable mold 3 are combined to form a molding cavity, and the material is injected into the molding cavity of the lower molding layer through the feed port;

[0045] S6. Inject high-temperature steam into the molding cavity through the air inlet pipe 1012 and maintain it for a period of time. During this process, the pneumatic opening and closing components of the lower molding layer remain open, and the pneumatic opening and closing components of the upper molding layer remain closed.

[0046] S7. Stop supplying high-temperature steam. At this time, all pneumatic opening and closing components remain in the open state. Due to the pressure difference, the residual high-temperature steam in the steam pipe will enter the mold cavity of the upper molding layer, preheating the solid mold 2 and the movable mold 3 of the upper molding layer, and then cooling the solid mold 2 and the movable mold 3 of the lower molding layer. After cooling, the movable plate 102 moves away from the fixed plate 101, and the solid mold 2 and the movable mold 3 are separated, and the finished product is taken out from the lower molding layer;

[0047] S8, return to S5, until a predetermined number of finished products are obtained from the lower forming layer;

[0048] S9. Return to S1.

[0049] When the low-energy shoemaking mold of the present invention is in use, different fixed molds 2 and movable molds 3 are set on the upper molding layer and the lower molding layer. When a sole needs to be produced, the molding cavity of the corresponding molding layer is filled with material, and then high-temperature steam is supplied. The pneumatic opening and closing component will automatically cut off the high-temperature steam to the vacant molding cavity. A large amount of high-temperature steam will not be injected into the vacant molding cavity, but the vacant molding cavity will be preheated by the residual high-temperature steam in the air intake pipe 1012, so that the filling material has a higher temperature during molding, and the heat of the high-temperature steam is fully utilized. The low-energy shoemaking mold of this embodiment is suitable for the production of customized soles. Different customized soles require different molds, and the output of different customized soles is different. In some cases, the molding cavities corresponding to some customized soles are in an empty state. The low-energy shoemaking mold of this embodiment can preheat the empty mold, so that the amount of high-temperature steam used in this part of the mold during molding of the filling material can be reduced, thereby shortening the production time.

[0050] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which shall fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. Low energy consumption shoemaking mold, characterized by: It includes a mounting frame and two molding layers arranged on the mounting frame, the two molding layers are arranged up and down, and a heat insulation plate is detachably installed between the two molding layers. Each molding layer includes multiple fixed molds and multiple movable molds. The mounting frame is provided with a fixed plate, and a movable plate is slidably matched on the mounting frame. The movement direction of the movable plate points to the fixed plate. The multiple fixed molds are fixedly mounted on the fixed plate, and the multiple movable molds are fixed on the movable plate. The positions of the multiple fixed molds and the multiple movable molds correspond to each other one by one. A feed hole and an air intake pipe are provided on the fixed plate corresponding to each fixed mold, and the feed hole and the air intake pipe are both connected to the mold cavity of the corresponding fixed mold. A pneumatic opening and closing component is installed in the air intake pipe. The pneumatic opening and closing assembly includes a closing plate and an adjustable elastic assembly. The closing plate is rotatably mounted in the air intake duct via a rotating shaft, with the rotation axis of the closing plate close to the upper end of the closing plate. The adjustable elastic assembly is mounted outside the air intake duct and is in driving connection with the rotating shaft. When the adjustable elastic assembly is in a free state, the closing plate opens the air intake duct. The adjustable elastic force assembly includes a connecting frame, a return spring, and a mounting rod. The two ends of the connecting frame are respectively connected to the two ends of the rotating shaft. The mounting rod is vertically connected to the outside of the air intake duct. The first end of the return spring is adjustably mounted on the mounting rod, and the second end of the return spring is adjustably mounted on the connecting frame. The upper end of the connecting frame is provided with a vertical segment, and the first end of the return spring is connected to the mounting rod through the first adjusting block, the first adjusting block is sleeved and slidably fitted on the mounting rod, a first positioning screw is threaded through the first adjusting block, and the end of the first positioning screw abuts on the mounting rod to thereby fix the first adjusting block, the second end of the return spring is connected to the vertical segment of the connecting frame through the second adjusting block, the second adjusting block is sleeved and slidably fitted on the vertical segment of the connecting frame, a second positioning screw is threaded through the second adjusting block, and the end of the second positioning screw abuts on the vertical segment of the connecting frame to thereby fix the second adjusting block.

2. The low-energy shoemaking mold according to claim 1, characterized in that: A first limit stop bar and a second limit stop bar are provided in the air intake duct. The first limit stop bar cooperates with the outer edge of the closing plate below the rotating shaft, and the second limit stop bar cooperates with the outer edge of the closing plate above the rotating shaft.

3. The low-energy shoemaking mold according to claim 1, characterized in that: A horizontal sliding frame is provided in the middle of the mounting frame, a movable positioning assembly is provided at one end of the sliding frame close to the fixed plate, a limiting assembly is provided at one end of the sliding frame away from the fixed plate, and both ends of the heat insulation board are respectively installed in the sliding frame through the limiting assembly and the movable positioning assembly.

4. The low-energy shoemaking mold according to claim 3, characterized in that: The movable positioning assembly includes two L-shaped workpieces symmetrically arranged in an upper and lower manner, and the two L-shaped workpieces are respectively abutted against the upper and lower sides of one end of the heat insulation plate close to the fixed plate. Both L-shaped workpieces can be rotatably mounted on the sliding frame. The horizontal segment of the upper L-shaped workpiece is connected to the sliding frame through a first tension spring, and the horizontal segment of the lower L-shaped workpiece is connected to the sliding frame through a second tension spring.

5. The low-energy shoemaking mold according to claim 3, characterized in that: The limiting assembly includes a baffle and a pin shaft. The lower end of the baffle is hinged to the lower end of the sliding frame. The upper end of the baffle is provided with a first sleeve. The sliding frame is provided with a second sleeve that cooperates with the first sleeve. The pin shaft is inserted into the first sleeve and the second sleeve.

6. The low-energy shoemaking mold according to claim 1, characterized in that: The mounting frame is provided with a mold clamping cylinder for driving the movable plate to move. The mounting frame is provided with a plurality of guide columns. The movable plate is slidably matched with the plurality of guide columns through a plurality of sliding sleeves.

7. A method for operating a low-energy shoemaking mold, using the low-energy shoemaking mold according to any one of claims 1 to 6, characterized in that: The working method comprises: S1, the movable plate moves toward the fixed plate, so that the fixed mold and the movable mold are combined to form a molding cavity, and the material is injected into the molding cavity of the upper molding layer through the feed port; S2. High-temperature steam is injected into the molding cavity through the air inlet pipe and maintained for a period of time. During this process, the pneumatic opening and closing components of the upper molding layer remain open, and the pneumatic opening and closing components of the lower molding layer remain closed; S3, stop supplying high-temperature steam and cool the fixed mold and movable mold of the upper molding layer. After cooling, the movable plate moves away from the fixed plate, the fixed mold and movable mold are separated, and the finished product is taken out from the upper molding layer; S4, return to S1 until a predetermined number of finished products are obtained from the upper forming layer; S5, the movable plate moves toward the fixed plate, so that the fixed mold and the movable mold are combined to form a molding cavity, and the material is injected into the molding cavity of the lower molding layer through the feed port; S6. Injecting high-temperature steam into the molding cavity through the air inlet pipe and maintaining it for a period of time. During this process, the pneumatic opening and closing components of the lower molding layer remain open, and the pneumatic opening and closing components of the upper molding layer remain closed; S7, stop supplying high-temperature steam, cool the fixed mold and movable mold of the lower molding layer, and after cooling, move the movable plate away from the fixed plate, separate the fixed mold and movable mold, and take out the finished product from the lower molding layer; S8, return to S5, until a predetermined number of finished products are obtained from the lower forming layer; S9. Return to S1.

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