Energy-saving polyurethane shoe material forming mold

Abstract

The utility model discloses an energy-saving polyurethane shoe material forming mold, which relates to the technical field of shoe material forming molds, including a base, an upper mold mechanism is connected to the base through an upper mold lifting control mechanism, and also includes a lower mold mechanism and a vacuum extraction mechanism, the lower mold mechanism includes a lower mold body, the upper side of the base is equipped with a lower mold body, a molding cavity is provided in the middle of the upper side of the lower mold body, and a film pressing groove is provided around the molding cavity on the upper side of the lower mold body, a vacuum cavity is provided in the lower mold body, and the bottom and side walls of the molding cavity are connected to the vacuum cavity through air holes respectively. The energy-saving polyurethane shoe material forming mold controls the solenoid valve to connect the vacuum tank with the vacuum cavity, can quickly evacuate the vacuum cavity, is conducive to the TPU film to be close to the inner wall of the molding cavity, and only allows the air in the vacuum tank to flow to the vacuum pump through the air pipe, so that it is difficult for external air to enter the vacuum tank, reduce the frequent start-up of the vacuum pump during vacuuming during the molding period, and play an energy-saving role.

Description

Technical Field

[0001] The utility model relates to the technical field of shoe material forming moulds, in particular to an energy-saving polyurethane shoe material forming mould. Background Art

[0002] Microporous polyurethane (PU) elastomers are light, wear-resistant, fold-resistant, oil-resistant, and chemical-resistant. Polyurethane shoe materials based on microporous elastomers are soft to the touch, comfortable to wear, warm, elastic, non-slip, and easy to process and shape, so they are suitable for shoe materials;

[0003] TPU film is made into a film based on TPU granules through calendering, casting, film blowing, coating and other processes. It is widely used in the soles and uppers of sports shoes.

[0004] Ordinary shoe molds can generally only cast shoe materials of one material, generally microporous polyurethane is used to cast shoe materials. When casting polyurethane dual-density shoe materials, it is generally necessary to lay the TPU film in the mold first, and then cast the microporous polyurethane in the TPU film. The mold in the prior art will have a vacuum cavity in the lower mold, and the vacuum cavity will adsorb the TPU film in the mold cavity through the suction hole. During this period, in order to maintain the vacuum degree in the mold cavity, it is necessary to regularly evacuate at a higher frequency, which consumes more energy. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the existing defects and provide an energy-saving polyurethane shoe material forming mold. A vacuum pump is used to evacuate a vacuum tank, and an electromagnetic valve is controlled to connect the vacuum tank with a vacuum chamber, so that the vacuum chamber can be quickly evacuated, which is beneficial for the TPU film to adhere closely to the inner wall of the forming chamber and for the bottom of the shoe material in the forming chamber to be smooth. A one-way valve assembly is arranged on an air pipe one between the vacuum pump and the vacuum tank, which only allows the air in the vacuum tank to flow to the vacuum pump through the air pipe one, and the air in the air pipe one cannot circulate in the reverse direction, so that it is difficult for external air to enter the vacuum tank, thereby reducing the frequent starting of the vacuum pump during vacuuming during the molding period, playing an energy-saving role, and effectively solving the problems in the background technology.

[0006] To achieve the above object, the utility model provides the following technical solution: an energy-saving polyurethane shoe material forming mold, comprising a base, an upper mold mechanism is connected to the base through an upper mold lifting control mechanism, and further comprising:

[0007] The lower mold mechanism comprises a lower mold body, a film pressing groove, a molding cavity, air holes and a vacuum cavity. The lower mold body is installed on the upper side of the base, a molding cavity is provided in the middle of the upper side of the lower mold body, and a film pressing groove is provided on the upper side of the lower mold body around the molding cavity. A vacuum cavity is provided in the lower mold body, and the bottom and side walls of the molding cavity are connected to the vacuum cavity through the air holes respectively.

[0008] The vacuum extraction mechanism includes air pipe 1, a vacuum pump, a vacuum tank, air pipe 2, a solenoid valve and a one-way valve assembly. The vacuum chamber is connected to the vacuum tank through air pipe 2, and the solenoid valve is installed on the air pipe 2. The vacuum tank is connected to the vacuum pump through air pipe 1, and the one-way valve assembly is installed on the air pipe 1. The vacuum pump is installed on the base.

[0009] The vacuum pump works first, and the vacuum tank is evacuated to a vacuum state through the one-way valve assembly and air pipe 1, and then the TPU film is laid in the molding cavity of the lower mold body, and then the upper mold lifting control mechanism drives the upper mold mechanism to move down to seal the molding cavity, and the upper mold mechanism cooperates with the film pressing groove to fix the edge of the TPU film, and then the solenoid valve is opened, and the vacuum tank evacuates the vacuum cavity through air pipe 2, and the vacuum cavity adsorbs the TPU film to the inner wall of the molding cavity through the pores, and then hot-melt microporous polyurethane is sent into the molding cavity through the upper mold mechanism. After the hot-melt microporous polyurethane is cooled and formed, the microporous polyurethane and the TPU film form a polyurethane double-density shoe material. The vacuum pump evacuates the vacuum tank once, and the vacuum tank can adsorb the TPU film through the vacuum cavity and pores for multiple times, avoiding frequent starting of the vacuum pump to maintain the vacuum state in the vacuum cavity, which can play an energy-saving role.

[0010] Furthermore, the vacuum extraction mechanism also includes a vacuum tank seat, and the bottom of the vacuum tank is fixed to the base through the vacuum tank seat, and the vacuum tank seat is used to stably install the vacuum tank.

[0011] Furthermore, the upper mold mechanism includes an upper mold body, a molding protrusion and a film pressing frame, the upper mold body is located directly above the lower mold body, the bottom of the upper mold body is provided with a molding protrusion at a position corresponding to the molding cavity, and the bottom of the upper mold body is provided with a film pressing frame at a position corresponding to the film pressing groove. After the upper mold body and the lower mold body are molded together, the film pressing frame cooperates with the film pressing groove to fix the edge of the TPU film, and the molding protrusion cooperates with the molding cavity to facilitate the shoe material to form a desired shape.

[0012] Furthermore, the upper mold mechanism also includes a temperature control channel, a temperature control medium pipeline and a pipe joint. The top of the molding protrusion is opened with a temperature control channel, and the two ends of the temperature control channel are respectively connected to one end of two temperature control medium pipelines, and the other ends of the two temperature control medium pipelines are respectively installed with pipe joints.

[0013] Furthermore, the upper mold lifting control mechanism includes guide pillars, guide rings, an upper mold fixing assembly, a top frame, top frame screws and a cylinder. The upper side of the base is located at the four corners of the lower mold body and is fixedly connected with four vertical guide pillars. The outer side of the upper mold body is provided with an upper mold fixing assembly. Four guide rings are provided on the upper mold fixing assembly. The four guide rings are respectively slidably connected with the four guide pillars, and the tops of the four guide pillars are respectively fixedly connected to the four corners of the top frame by four top frame screws. A cylinder is installed in the middle of the top frame, and the telescopic end of the bottom of the cylinder is connected to the top center of the upper mold body. The top frame screws are used to fix the top frame, and the top frame is used to install the cylinder. The extension of the cylinder can drive the upper mold body to move downward along the guide pillars through the guide rings, so that the upper mold body and the lower mold body can be molded together. The shortening of the cylinder can drive the upper mold body to move upward, open the molding mold, and facilitate the removal of the formed shoe material.

[0014] Furthermore, the upper mold fixing assembly includes an upper mold fixing frame and an upper mold fixing screw, the upper mold fixing frame is sleeved on the outer side of the upper mold body, and the four side surfaces of the upper mold fixing frame are respectively fixedly connected to the upper mold body by the upper mold fixing screws, and the four guide rings are respectively arranged at the four corners of the upper mold fixing frame. The upper mold fixing frame is connected to the upper mold body by the upper mold fixing screws, so that different upper mold bodies can be easily replaced.

[0015] Furthermore, the upper die lifting control mechanism also includes a vertical spring, and the part of each guide column located under the guide ring is sleeved with a vertical spring. When the cylinder is extended, the vertical spring is compressed by the guide ring, and after the cylinder is shortened, the vertical spring rebounds to promote the upward movement of the upper die body.

[0016] Compared with the prior art, the energy-saving polyurethane shoe material forming mold has the following beneficial effects:

[0017] 1. Use a vacuum pump to evacuate the vacuum tank, and control the solenoid valve to connect the vacuum tank with the vacuum chamber. The vacuum chamber can be quickly evacuated, which is conducive to the TPU film being close to the inner wall of the molding chamber and making the bottom of the shoe material in the molding chamber smooth. A one-way valve assembly is provided on the air pipe between the vacuum pump and the vacuum tank, which only allows the air in the vacuum tank to flow to the vacuum pump through the air pipe. The air in the air pipe cannot flow in the reverse direction, making it difficult for external air to enter the vacuum tank, reducing the frequent start-up of the vacuum pump during vacuuming during the molding period, and playing an energy-saving role.

[0018] 2. The vacuum chamber absorbs the TPU film to the inner wall of the molding cavity through the pores, and then feeds hot-melt microporous polyurethane into the molding cavity through the upper mold mechanism. After the hot-melt microporous polyurethane is cooled and formed, the microporous polyurethane and the TPU film form a polyurethane double-density shoe material. The TPU film not only has excellent high tension, high tensile strength, toughness and aging resistance, which can improve the performance of the shoe material, but the TPU film is a mature environmentally friendly material, making the shoe material more environmentally friendly. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the utility model when viewed from above;

[0021] Figure 3 This is a schematic diagram of the cross-sectional structure of the upper mold mechanism of the utility model;

[0022] Figure 4 This is a schematic diagram of the cross-sectional structure of the lower mold mechanism of the utility model;

[0023] Figure 5 This is a schematic diagram of the cross-sectional structure of a one-way valve assembly of the utility model;

[0024] In the figure: 1 base, 2 lower mold fixing assembly, 21 lower mold fixing frame, 22 lower mold fixing screw, 3 lower mold mechanism, 31 lower mold body, 32 sealing groove, 33 film pressing groove, 34 molding cavity, 35 air hole, 36 vacuum cavity, 4 vacuum extraction mechanism, 41 vacuum tank seat, 42 air pipe 1, 43 vacuum pump, 44 vacuum tank, 45 air pipe 2, 46 solenoid valve, 47 one-way valve assembly, 471 valve housing, 472 valve end cover, 473 sealing ring, 474 top ring, 47 5 slip ring, 476 slide column, 477 transverse spring, 478 tapered plug seat, 479 sealing rubber sleeve, 5 upper mold lifting control mechanism, 51 guide column, 52 guide ring, 53 upper mold fixing frame, 54 upper mold fixing screw, 55 top frame, 56 top frame screw, 57 cylinder, 58 vertical spring, 6 upper mold mechanism, 61 upper mold body, 62 gate, 63 riser, 64 molding protrusion, 65 temperature control channel, 66 sealing protrusion, 67 film pressing frame, 68 temperature control medium pipeline, 69 pipe joint. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] For examples, see Figures 1 to 5 The utility model provides a technical solution: an energy-saving polyurethane shoe material forming mold, comprising a base 1, an upper mold mechanism 6 is connected to the base 1 through an upper mold lifting control mechanism 5, and also comprises a lower mold mechanism 3 and a vacuum extraction mechanism 4;

[0027] The lower mold mechanism 3 includes a lower mold body 31, a film pressing groove 33, a molding cavity 34, an air hole 35 and a vacuum cavity 36. The lower mold body 31 is installed on the upper side of the base 1. The molding cavity 34 is opened in the middle of the upper side of the lower mold body 31, and the film pressing groove 33 is opened on the upper side of the lower mold body 31 around the molding cavity 34. The vacuum cavity 36 is arranged in the lower mold body 31, and the bottom and side wall of the molding cavity 34 are respectively connected with the vacuum cavity 36 through the air hole 35;

[0028] The lower mold mechanism 3 further includes a sealing groove 32 . The upper edge of the lower mold body 31 is provided with a sealing groove 32 .

[0029] It also includes a lower mold fixing component 2, which includes a lower mold fixing frame 21 and a lower mold fixing screw 22. The upper side of the base 1 is fixedly connected with the lower mold fixing frame 21 at a position corresponding to the lower mold main body 31. The lower mold fixing frame 21 is sleeved on the bottom outer side of the lower mold main body 31, and the lower mold fixing frame 21 is fixedly connected to the lower mold main body 31 by the lower mold fixing screw 22. With the help of the lower mold fixing frame 21 and the lower mold fixing screw 22, the lower mold main body 31 can be detachably connected to the base 1, which is convenient for replacing the lower mold main body 31.

[0030] The vacuum extraction mechanism 4 includes an air pipe 1 42, a vacuum pump 43, a vacuum tank 44, an air pipe 2 45, a solenoid valve 46 and a one-way valve assembly 47. The vacuum chamber 36 is connected to the vacuum tank 44 through the air pipe 2 45, and the air pipe 2 45 is equipped with a solenoid valve 46. The vacuum tank 44 is connected to the vacuum pump 43 through the air pipe 1 42, and the one-way valve assembly 47 is installed on the air pipe 1 42. The vacuum pump 43 is installed on the base 1.

[0031] The one-way valve assembly 47 includes a valve housing 471, a valve end cover 472, a sealing ring 473, a top ring 474, a sliding ring 475, a sliding column 476, a transverse spring 477, a conical plug seat 478, and a sealing rubber sleeve 479. The end of the air pipe 42 close to the vacuum tank 44 is the left half pipe, and the end of the air pipe 42 close to the vacuum pump 43 is the right half pipe. The left end of the valve housing 471 is connected to the left half pipe, and the right end of the valve housing 471 is internally threadedly connected with the valve end cover 472, and the right end of the valve end cover 472 is connected to the right half pipe. A sealing ring 473 is provided at the connection between the valve housing 471 and the valve end cover 472, so that the valve housing 471 and the valve end cover 472 can be connected. 474 is sleeved on the right side of the valve housing 471, and a slip ring 475 is connected to the inner side of the top ring 474 through two spokes. The slip ring 475 is coaxially arranged with the top ring 474, and the right end of the sliding column 476 is transversely slidably connected in the slip ring 475. The left end of the sliding column 476 is fixedly connected with a tapered plug seat 478, and the tapered plug seat 478 is located in the tapered mouth, and a sealing rubber sleeve 479 made of rubber material is sleeved on the outer side of the tapered plug seat 478, and a transverse spring 477 is sleeved on the part of the sliding column 476 located between the slip ring 475 and the tapered plug seat 478;

[0032] The transverse spring 477 pushes the sliding column 476 and the tapered plug seat 478 to move leftward relative to the slip ring 475. The tapered plug seat 478 can better block the tapered port with the help of the sealing rubber sleeve 479. When the vacuum pump 43 is working, the right end of the valve housing 471 is in a vacuum state. At this time, the pressure in the valve housing 471 is lower than that in the vacuum tank 44. The transverse spring 477 is compressed, and the tapered plug seat 478, the sealing rubber sleeve 479 and the sliding column 476 move rightward relative to the slip ring 475 to open the tapered port. The vacuum pump 43 pushes the vacuum tank The inside of the vacuum tank 44 is evacuated to a vacuum state, and the vacuum pump 43 stops working. At this time, the pressure in the vacuum tank 44 is lower than that in the valve housing 471, the transverse spring 477 extends, the conical plug seat 478, the sealing rubber sleeve 479 and the sliding column 476 move left relative to the slip ring 475, the sealing rubber sleeve 479 blocks the conical opening, and the pressure difference between the vacuum tank 44 and the valve housing 471 also allows the sealing rubber sleeve 479 to stably close the conical opening, thereby realizing the function that the airflow in the air pipe 42 can only flow from the vacuum tank 44 to the vacuum pump 43.

[0033] The vacuum extraction mechanism 4 further includes a vacuum tank seat 41 , and the bottom of the vacuum tank 44 is fixed on the base 1 through the vacuum tank seat 41 . The vacuum tank seat 41 is used to stably install the vacuum tank 44 .

[0034] The upper mold mechanism 6 includes an upper mold body 61, a molding protrusion 64 and a film pressing frame 67. The upper mold body 61 is located directly above the lower mold body 31. The molding protrusion 64 is provided at the bottom of the upper mold body 61 corresponding to the position of the molding cavity 34, and the film pressing frame 67 is provided at the bottom of the upper mold body 61 corresponding to the position of the film pressing groove 33. After the upper mold body 61 and the lower mold body 31 are molded together, the film pressing frame 67 cooperates with the film pressing groove 33 to fix the edge of the TPU film, and the molding protrusion 64 cooperates with the molding cavity 34 to facilitate the shoe material to form a desired shape.

[0035] The upper mold mechanism 6 also includes a gate 62 and a riser 63. The gate 62 and the riser 63 are respectively arranged on the upper mold body 61. Circular through grooves are respectively opened on the molding protrusion 64 at the positions corresponding to the gate 62 and the riser 63. Hot-melt microporous polyurethane can be poured into the molding cavity 34 through the gate 62, and the original air in the molding cavity 34 is discharged through the riser 63.

[0036] The upper mold mechanism 6 also includes a sealing protrusion 66. The bottom edge of the upper mold body 61 is provided with a sealing protrusion 66. After the upper mold body 61 and the lower mold body 31 are molded together, the sealing protrusion 66 cooperates with the sealing groove 32 to seal the contact surface between the upper mold body 61 and the lower mold body 31.

[0037] The upper mold mechanism 6 also includes a temperature control channel 65, a temperature control medium pipeline 68 and a pipe joint 69. The top of the molding protrusion 64 is provided with a temperature control channel 65. The two ends of the temperature control channel 65 are respectively connected to one end of two temperature control medium pipelines 68. The other ends of the two temperature control medium pipelines 68 are respectively provided with pipe joints 69. The two pipe joints 69 can control the molding protrusion 64 to be at a suitable temperature by means of the medium flowing through the temperature control channel 65, which is conducive to the molding of the shoe material at a suitable temperature. Here, the temperature control needs to be used in conjunction with a temperature sensor.

[0038] The upper mold lifting control mechanism 5 includes guide columns 51, guide rings 52, an upper mold fixing assembly, a top frame 55, top frame screws 56 and a cylinder 57. The upper side of the base 1 is located at the four corners of the lower mold body 31 and is fixedly connected with four vertical guide columns 51. The outer side of the upper mold body 61 is provided with an upper mold fixing assembly, and four guide rings 52 are provided on the upper mold fixing assembly. The four guide rings 52 are respectively slidably connected to the four guide columns 51, and the tops of the four guide columns 51 are fixedly connected to the four corners of the top frame 55 by four top frame screws 56. A cylinder 57 is installed in the middle of the top frame 55, and the telescopic end at the bottom of the cylinder 57 is connected to the top center of the upper mold body 61. The top frame screw 56 is used to fix the top frame 55, and the top frame 55 is used to install the cylinder 57. The extension of the cylinder 57 can drive the upper mold body 61 to move downward along the guide column 51 through the guide ring 52, so that the upper mold body 61 and the lower mold body 31 are molded together. The cylinder 57 is shortened to drive the upper mold body 61 to move upward, open the molding mold, and facilitate the removal of the formed shoe material.

[0039] The upper mold fixing assembly includes an upper mold fixing frame 53 and an upper mold fixing screw 54. The upper mold fixing frame 53 is sleeved on the outer side of the upper mold body 61, and the four sides of the upper mold fixing frame 53 are respectively fixedly connected to the upper mold body 61 by the upper mold fixing screws 54. The four guide rings 52 are respectively arranged at the four corners of the upper mold fixing frame 53. The upper mold fixing frame 53 is connected to the upper mold body 61 by the upper mold fixing screws 54, which is convenient for replacing different upper mold bodies 61.

[0040] The upper die lifting control mechanism 5 also includes a vertical spring 58, and the part of each guide column 51 located under the guide ring 52 is sleeved with the vertical spring 58. When the cylinder 57 is extended, the vertical spring 58 is compressed by the guide ring 52, and when the cylinder 57 is shortened, the vertical spring 58 rebounds to promote the upward movement of the upper die body 61.

[0041] When in use, the vacuum pump 43 works first, and the vacuum tank 44 is evacuated to a vacuum state through the one-way valve assembly 47 and the air pipe 1 42, and then the TPU film is laid in the molding cavity 34 of the lower mold body 31, and then the upper mold lifting control mechanism 5 drives the upper mold mechanism 6 to move downward to seal the molding cavity 34, and the upper mold mechanism 6 cooperates with the film pressing groove 33 to fix the edge of the TPU film, and then the solenoid valve 46 is opened, and the vacuum tank 44 evacuates the vacuum cavity 36 through the air pipe 2 45, and the vacuum cavity 36 adsorbs the TPU film to the inner wall of the molding cavity 34 through the air hole 35, and then the hot-melt microporous polyurethane is sent into the molding cavity 34 through the upper mold mechanism 6, and the hot-melt microporous polyurethane is cooled and formed. The microporous polyurethane and the TPU film form a polyurethane double-density shoe material, and the vacuum pump 43 evacuates the vacuum tank 44 once, and the vacuum tank 44 can adsorb the TPU film through the vacuum cavity 36 and the air hole 35 for many times, avoiding the frequent start-up of the vacuum pump 43 to maintain the vacuum state in the vacuum cavity 36, which can play an energy-saving role.

[0042] It is worth noting that the vacuum pump 43, the solenoid valve 46 and the cylinder 57 disclosed in the above embodiments are all controlled by an external PLC controller, and the control method thereof adopts the method commonly used in the prior art.

[0043] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0044] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An energy-saving polyurethane shoe material forming mold, comprising a base (1), wherein an upper mold mechanism (6) is connected to the base (1) via an upper mold lifting control mechanism (5), characterized in that: Also includes: A lower mold mechanism (3) comprises a lower mold body (31), a film pressing groove (33), a molding cavity (34), an air hole (35) and a vacuum cavity (36); the lower mold body (31) is mounted on the upper side of the base (1); a molding cavity (34) is provided in the middle of the upper side of the lower mold body (31); a film pressing groove (33) is provided on the upper side of the lower mold body (31) around the molding cavity (34); a vacuum cavity (36) is provided in the lower mold body (31); and the bottom and side walls of the molding cavity (34) are respectively connected to the vacuum cavity (36) through the air holes (35); The vacuum extraction mechanism (4) comprises an air pipe (42), a vacuum pump (43), a vacuum tank (44), an air pipe (45), a solenoid valve (46) and a one-way valve assembly (47); the vacuum chamber (36) is connected to the vacuum tank (44) via the air pipe (45); the air pipe (45) is provided with a solenoid valve (46); the vacuum tank (44) is connected to the vacuum pump (43) via the air pipe (42); the one-way valve assembly (47) is provided on the air pipe (42); and the vacuum pump (43) is provided on the base (1).

2. The energy-saving polyurethane shoe material forming mold according to claim 1, characterized in that: The vacuum extraction mechanism (4) further comprises a vacuum tank seat (41), and the bottom of the vacuum tank (44) is fixed on the base (1) via the vacuum tank seat (41).

3. The energy-saving polyurethane shoe material forming mold according to claim 1, characterized in that: The upper mold mechanism (6) comprises an upper mold body (61), a molding protrusion (64) and a film pressing frame (67); the upper mold body (61) is located directly above the lower mold body (31); the molding protrusion (64) is arranged at a position of the bottom of the upper mold body (61) corresponding to the molding cavity (34); and the film pressing frame (67) is arranged at a position of the bottom of the upper mold body (61) corresponding to the film pressing groove (33).

4. The energy-saving polyurethane shoe material forming mold according to claim 3, characterized in that: The upper mold mechanism (6) further comprises a temperature control channel (65), a temperature control medium pipeline (68) and a pipe joint (69); the top of the molding protrusion (64) is provided with a temperature control channel (65); two ends of the temperature control channel (65) are respectively connected to one end of two temperature control medium pipelines (68); and the other ends of the two temperature control medium pipelines (68) are respectively provided with pipe joints (69).

5. The energy-saving polyurethane shoe material forming mold according to claim 3, characterized in that: The upper mold lifting control mechanism (5) comprises a guide column (51), a guide ring (52), an upper mold fixing assembly, a top frame (55), a top frame screw (56) and a cylinder (57); the upper side of the base (1) is located at the four corners of the lower mold body (31) and is respectively fixedly connected with four vertical guide columns (51); the outer side of the upper mold body (61) is provided with an upper mold fixing assembly; four guide rings (52) are provided on the upper mold fixing assembly; the four guide rings (52) are respectively slidably connected to the four guide columns (51); and the tops of the four guide columns (51) are respectively fixedly connected to the four corners of the top frame (55) by four top frame screws (56); a cylinder (57) is installed in the middle of the top frame (55); the telescopic end at the bottom of the cylinder (57) is connected to the top center of the upper mold body (61).

6. The energy-saving polyurethane shoe material forming mold according to claim 5, characterized in that: The upper mold fixing assembly comprises an upper mold fixing frame (53) and an upper mold fixing screw (54); the upper mold fixing frame (53) is sleeved on the outer side of the upper mold body (61); and the four side surfaces of the upper mold fixing frame (53) are respectively fixedly connected to the upper mold body (61) by the upper mold fixing screws (54); and four guide rings (52) are respectively arranged at the four corners of the upper mold fixing frame (53).

7. The energy-saving polyurethane shoe material forming mold according to claim 5, characterized in that: The upper die lifting control mechanism (5) further comprises a vertical spring (58), and the portion of each guide column (51) located below the guide ring (52) is sleeved with the vertical spring (58).

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