A supercritical fluid foaming EVA sole molding equipment

Abstract

The invention relates to the technical field of shoe sole molding equipment, in particular to a supercritical fluid foaming EVA shoe sole molding equipment, comprising a base, a work frame, a flip demoulding auxiliary component, an upper mold, a lower mold, and a flip demoulding component arranged on both sides of the lower mold, and also comprising a cooling component and a cooling auxiliary component, the cooling component comprising a cavity plate, a cavity cylinder, a circulation copper tube, a perforated sphere, a liquid inlet adapter tube and a connecting rod, the bottom ends of the connecting rods are respectively fixedly connected with a first protrusion and a second protrusion, and a dredging groove is formed between the surface of the liquid inlet adapter tube and the inner wall of the perforated sphere; the invention can improve the cooling effect of the connection between the inner bottom wall of the lower mold cavity and the sole by setting the cooling component and the cooling auxiliary component, thereby improving the demoulding effect, and solving the problem that the existing cold air cannot be evenly blown to the connection between the sole and the inner bottom wall of the lower mold cavity, resulting in low cooling efficiency and prolonging the time for the sole to harden to a suitable demoulding degree.

Description

Technical Field

[0001] The invention relates to the technical field of sole molding equipment, in particular to supercritical fluid foaming EVA sole molding equipment. Background Art

[0002] Foamed EVA sole molding is an important technology in shoemaking. It utilizes the foaming characteristics of EVA (ethylene-vinyl acetate copolymer) material and processes the EVA material into a sole with light weight, high elasticity and good shock-absorbing performance through a specific process.

[0003] In the prior art, a Chinese patent with announcement number CN114536834B discloses a supercritical foaming EVA sole molding device and method. The fan of the patent has the same movement trend as the round head rod. The fan blows toward the mold and the sole to accelerate the cooling of both. The thermal expansion and contraction degree of the sole is much greater than that of the module, which makes the gap between the sole and the mold larger. The strong wind blows toward the sole and the mold, which also accelerates the separation of the sole from the mold.

[0004] In the above technical solution, the fan works in the same direction to cool the mold after the foamed sole is formed, thereby accelerating the separation of the sole from the mold to achieve demolding. However, the temperature inside the mold is high during foaming. Due to the poor thermal conductivity of air, the air cooling method may not be able to evenly cool the inside of the lower mold cavity. Moreover, if only fan cooling is used, the cold air cannot evenly blow to the connection between the sole and the bottom wall of the lower mold cavity, resulting in low cooling efficiency. It takes a longer time to harden the sole to a degree suitable for demolding, thereby affecting the molding quality of the sole.

[0005] Based on this, a supercritical fluid foaming EVA sole molding equipment is proposed. Summary of the invention

[0006] In order to solve the above technical problems, the present invention proposes a supercritical fluid foaming EVA sole molding equipment, which can improve the cooling effect of the connection between the bottom wall of the lower mold cavity and the sole by setting a cooling component and a cooling auxiliary component, thereby improving the demolding effect.

[0007] The technical solution for achieving the purpose of the present invention is: a supercritical fluid foaming EVA sole molding device, comprising a base, a working frame fixedly connected to the upper surface of the base, a flip demoulding auxiliary component provided on the inner top wall of the working frame, an upper mold and a lower mold provided inside the working frame, and flip demoulding components provided on both sides of the lower mold, and further comprising;

[0008] A cooling assembly, wherein the cooling assembly is arranged inside the lower mold;

[0009] The cooling assembly includes a cavity plate adapted to slide with the inner wall of the lower mold cavity, the lower surface of the cavity plate is fixedly connected to the cavity cylinder, the inner wall of the cavity plate is provided with a circulation copper tube, the input port and output port of the circulation copper tube are both arranged inside the cavity cylinder, the bottom end of the cavity cylinder is fixedly connected with a perforated sphere, the inner wall of the perforated sphere is adapted to be fixedly connected with a liquid inlet adapter tube, the input port of the circulation copper tube is fixedly connected with the upper surface of the liquid inlet adapter tube, the surface of the cavity cylinder is fixedly connected with a connecting rod, the bottom ends of the connecting rod are respectively fixedly connected with a bump one and a bump two, and a dredging groove is formed between the surface of the liquid inlet adapter tube and the inner wall of the perforated sphere;

[0010] A cooling auxiliary component, the cooling auxiliary component includes a cavity slide and a right-angle rod, the upper surface of the cavity slide is fixedly connected to a fixed cylinder, the inner wall of the fixed cylinder is adapted to be slidably connected to a liquid outlet oblique tube, the inner wall of the fixed cylinder is fixedly connected to a return spring, the top of the return spring is fixedly connected to the lower surface of the liquid outlet oblique tube, the surface of the liquid outlet oblique tube is fixedly connected to a bending rod, one end of the bending rod is fixedly connected to a protrusion three, and the top of the right-angle rod is fixedly connected to a trapezoidal block.

[0011] Preferably, the inner wall of the lower mold is fixedly connected to a fixing plate, a plurality of damping sliding holes are penetrated through the lower surface of the fixing plate, the inner walls of the plurality of damping sliding holes are adapted to be installed with damping sliding rods, the top ends of the plurality of damping sliding rods are fixedly connected to the lower surface of the cavity plate, the surfaces of the plurality of damping sliding rods are sleeved with compression springs, and the surface of the cavity plate fits with the inner wall of the mold cavity of the lower mold.

[0012] Preferably, the inner wall of the workbench is fixedly connected with a slotted plate, the upper surface of the slotted plate is provided with a slide groove, the surface of the cavity slide is slidably connected to the inner wall of the slide groove, one inner wall of one side of the slide groove is fixedly connected with a tension spring, one end of the tension spring is fixedly connected to one side of the cavity slide, the bottom end of the right-angle rod is fixedly connected to the upper surface of the slotted plate, a coolant storage tank is provided above the base, the upper surface of the coolant storage tank is fixedly connected with a connecting pipe, and the top end of the connecting pipe is fixedly connected to the lower surface of the cavity slide.

[0013] Preferably, a stabilizing groove is provided on one side of the working frame, and the inner wall of the stabilizing groove is slidably connected to a rotating seat, one end of the rotating seat is rotatably connected to a load-bearing rod, one end of the load-bearing rod is fixedly connected to one side of the lower mold, and a collecting box is provided on the inner bottom wall of the working frame, a hydraulic rod is fixedly installed on one side of the working frame, and two cylinders are fixedly installed on the upper surface of the working frame, and the output end of one of the cylinders is fixedly connected to a mounting plate 1, and the lower surface of the mounting plate 1 is fixedly connected to an L-shaped hanger 1.

[0014] Preferably, the flip demolding assembly includes a push plate fixedly connected to the output end of the hydraulic rod, two through holes are penetrated on one side of the push plate, the inner walls of the two through holes are fixedly connected to air cylinders, the inner walls of the two air cylinders are slidably connected to piston rods, one end of the two piston rods is fixedly connected to a right-angle plate, one end of the two air cylinders is fixedly connected to an air pipe, and solenoid valves are fixedly installed on the surfaces of the two air pipes.

[0015] Preferably, both sides of the lower mold are rotatably connected with gears through the load-bearing rod and the rotating shaft, and the lower surface of the push plate is fixedly connected with two racks, and the two racks are respectively meshed with the corresponding two gears. One side of the two right-angle plates is penetrated by a rotating hole, and the inner walls of the two rotating holes are respectively rotatably connected with the surfaces of the corresponding load-bearing rod and the rotating shaft. The upper surface of the lower mold is provided with an upper mold, and the upper surface of the upper mold is respectively fixedly connected with block one and block two, and the surface of the L-shaped hanger one is adapted to slide with the inner wall of block one.

[0016] Preferably, the flip demolding auxiliary component includes a mounting plate 2 fixedly connected to the other cylinder output end, the lower surface of the mounting plate 2 is fixedly connected to an L-shaped hanger 2, and the surface of the L-shaped hanger 2 is adapted to be slidably connected to the inner wall of the clamping block 2.

[0017] Preferably, both sides of the L-shaped hanger two are fixedly connected with adapter rods, one side of the two adapter rods is fixedly connected with a plurality of protrusions four, the inner walls of both sides of the working frame are fixedly connected with right-angle fixed rod sleeves, the inner walls of the two right-angle fixed rod sleeves are slidably connected with right-angle sliding rods, one end of the two right-angle sliding rods are respectively fixedly connected with protrusions five and rubber balls, and the surfaces of the two right-angle sliding rods are sleeved with springs.

[0018] Compared with the prior art, the present invention has the following significant advantages:

[0019] First, the present invention can drive the push plate to move through the hydraulic rod, and the movement of the push plate and the closed electromagnetic valve can make the piston rod push the right-angle plate to connect the mold to move synchronously. In the process of mold movement, the convex block 2 set at the bottom of the lower mold will first contact and squeeze the convex block 3 set on the liquid outlet oblique tube, and the convex block 3 can drive the liquid outlet oblique tube to descend through the compression of the reset spring until the liquid inlet adapter tube set inside the perforated sphere is directly opposite to the liquid outlet oblique tube, and the convex block 2 and the convex block 3 do not produce an extrusion relationship. At this time, the liquid outlet oblique tube is reset by the reset spring and can be extended into the liquid inlet adapter tube, and the coolant is passed into the circulating copper tube through the liquid inlet adapter tube, so that the cavity plate can be cooled, and the cooling effect of the connection between the sole and the cavity plate is improved;

[0020] Second, the present invention can realize that the circulating coolant flows out through the output port of the circulating copper tube and is discharged through the perforated sphere by means of the perforated sphere and the dredging groove, thereby realizing the continuous flow of the coolant and improving the cooling efficiency. The surface of the circulating copper tube is provided with a plurality of holes, so that the coolant can fill the interior of the cavity plate, further improving the cooling effect.

[0021] Thirdly, in the process of the second mounting plate rising, the adapter rod and the fourth protrusion will reciprocately squeeze the fifth protrusion. When the fifth protrusion is squeezed, the right-angle slide bar will slide. With the action of the spring, the right-angle slide bar can drive the rubber ball to continuously impact and vibrate the lower mold, thereby improving the demoulding effect.

[0022] Fourthly, the present invention is turned on by energizing the solenoid valve, and the hydraulic rod continues to move. The lower mold no longer moves because the rotating seat is pressed against the end of the stabilizing groove. The solenoid valve is opened. When the hydraulic rod is driven, the push plate drives the air cylinder to slide on the surface of the piston rod, so that the push plate drives the rack to move. When the rack moves, it drives the gear to rotate. The rotation of the gear can drive the lower mold to achieve a 180-degree flip. During the flipping of the lower mold, the open hole sphere under the lower mold contacts the upper mold. Through the provided compression spring and damping slide rod, when the open hole sphere is squeezed, the cavity cylinder drives the cavity plate to slide inside the lower mold cavity, which is convenient for ejecting the foamed sole and further improving the demoulding effect.

[0023] The invention solves the problem that the existing cold air cannot be evenly blown to the connection between the sole and the bottom wall of the lower mold cavity, resulting in low cooling efficiency and prolonging the time for the sole to harden to a suitable demoulding degree. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention will be further explained below in conjunction with the accompanying drawings and embodiments:

[0025] Figure 1 It is a schematic diagram of the three-dimensional structure provided by the present invention;

[0026] Figure 2 It is a schematic diagram of the structure of the flip demoulding component provided by the present invention;

[0027] Figure 3 The present invention provides Figure 2 The enlarged structural diagram at A in the middle;

[0028] Figure 4 It is a schematic diagram of the structure of the cooling assembly provided by the present invention;

[0029] Figure 5 It is a partial structural schematic diagram of the cooling assembly provided by the present invention;

[0030] Figure 6 It is a schematic diagram of the structure of the cooling auxiliary component provided by the present invention;

[0031] Figure 7 The present invention provides Figure 6 The enlarged structural diagram at B in the middle;

[0032] Figure 8 It is a schematic diagram of the structure of the flip demoulding auxiliary component provided by the present invention.

[0033] Description of reference numerals:

[0034] 1. Base; 2. Work stand; 3. Hydraulic rod; 4. Cooling assembly; 401. Fixed plate; 402. Damping slide rod; 403. Compression spring; 404. Cavity plate; 405. Cavity tube; 406. Circulating copper tube; 407. Perforated sphere; 408. Connecting rod; 409. Bump 1; 410. Bump 2; 411. Liquid inlet adapter tube; 412. Dredge groove; 5. Cooling auxiliary assembly; 501. Slide groove; 502. Tension spring; 503. Cavity slide seat; 504. Connecting pipe; 505. Fixed tube; 506. Reset spring; 507. Liquid outlet oblique tube; 508. Bending rod; 509. Bump 3; 510. Right-angle rod; 511. Trapezoidal block; 6. Flip demoulding assembly; 601. Gear strip; 602, gear; 603, push plate; 604, solenoid valve; 605, air pipe; 606, piston rod; 607, right-angle plate; 608, air cylinder; 7, flip demoulding auxiliary component; 701, mounting plate two; 702, L-shaped bracket two; 703, adapter rod; 704, bump four; 705, right-angle fixing rod sleeve; 706, right-angle sliding rod; 707, bump five; 708, rubber ball; 709, spring; 8, stabilizing groove; 9, cylinder; 10, collection box; 11, mounting plate one; 12, L-shaped bracket one; 13, upper mold; 14, lower mold; 15, block one; 16, block two; 17, slotted plate; 18, coolant storage tank; 19, rotating seat; 20, bearing rod. DETAILED DESCRIPTION

[0035] The present invention is described in detail below, and the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] The present invention provides a supercritical fluid foaming EVA sole molding device through improvement. The technical solution of the present invention is:

[0037] like Figure 1-8As shown, a supercritical fluid foaming EVA sole molding device includes a base 1, a working frame 2 is fixedly connected to the upper surface of the base 1, a flip demoulding auxiliary component 7 is arranged on the inner top wall of the working frame 2, an upper mold 13 and a lower mold 14 are arranged inside the working frame 2, and flip demoulding components 6 are arranged on both sides of the lower mold 14, and also includes;

[0038] A cooling assembly 4, wherein the cooling assembly 4 is arranged inside the lower mold 14;

[0039] The cooling assembly 4 includes a cavity plate 404 that is slidably arranged with the inner wall of the cavity of the lower mold 14. The lower surface of the cavity plate 404 is fixedly connected to the cavity tube 405. The inner wall of the cavity plate 404 is provided with a circulating copper tube 406. The circulating copper tube 406 has a good thermal conductivity, thereby improving the heat exchange effect and the cooling efficiency. The surface of the circulating copper tube 406 is provided with a plurality of holes, which can allow the coolant to fill the interior of the cavity plate 404, further improving the cooling effect. The input port and the output port of the circulating copper tube 406 are both arranged inside the cavity tube 405. The bottom end of the cavity tube 405 is fixedly connected with an open hole sphere 407. The surface of the open hole sphere 407 is provided with a plurality of leakage holes facing downward, which can be used to cool the coolant after heat exchange. The cooling liquid is discharged, the inner wall of the perforated sphere 407 is adapted and fixedly connected with a liquid inlet adapter tube 411, the liquid inlet adapter tube 411 is adapted to the inner wall of the perforated sphere 407, the input port of the circulating copper tube 406 is fixedly connected with the upper surface of the liquid inlet adapter tube 411, the surface of the cavity cylinder 405 is fixedly connected with a connecting rod 408, the connecting rod 408 is provided with two bottom ends, and the protrusion 1 409 and the protrusion 2 410 can be fixed at the same time, and the bottom ends of the connecting rod 408 are respectively fixedly connected with the protrusion 1 409 and the protrusion 2 410, and a dredging groove 412 is formed between the surface of the liquid inlet adapter tube 411 and the inner wall of the perforated sphere 407, and the dredging groove 412 can realize that the cooling liquid for heat exchange reaches the inside of the perforated sphere 407;

[0040] Cooling auxiliary component 5, cooling auxiliary component 5 includes a cavity slide 503 and a right-angle rod 510, the upper surface of the cavity slide 503 is fixedly connected with a fixed cylinder 505, the inner wall of the fixed cylinder 505 is adapted and slidably connected with a liquid outlet oblique tube 507, the oblique design of the liquid outlet oblique tube 507 can improve the accuracy of extending into the liquid inlet adapter tube 411, the inner wall of the fixed cylinder 505 is fixedly connected with a return spring 506, the cavity slide 503, the fixed cylinder 505 and the liquid outlet oblique tube 507 are connected through the same inlet, the top of the return spring 506 is fixedly connected to the lower surface of the liquid outlet oblique tube 507, the surface of the liquid outlet oblique tube 507 is fixedly connected with a bending rod 508, one end of the bending rod 508 is fixedly connected with a protrusion three 509, and the top of the right-angle rod 510 is fixedly connected with a trapezoidal block 511.

[0041] like Figure 4As shown, the inner wall of the lower mold 14 is fixedly connected with a fixed plate 401, and a plurality of damping slide holes are penetrated through the lower surface of the fixed plate 401, and the inner walls of the plurality of damping slide holes are adapted to be installed with damping slide rods 402. The damping slide rods 402 are arranged to avoid slight vibration of the cavity plate 404 caused by the compression springs 403, thereby affecting the foaming effect. The top ends of the plurality of damping slide rods 402 are fixedly connected with the lower surface of the cavity plate 404, and the surfaces of the plurality of damping slide rods 402 are sleeved with compression springs 403, and the surface of the cavity plate 404 fits with the inner wall of the mold cavity of the lower mold 14.

[0042] like Figure 1 and Figure 4 As shown, the inner wall of the work frame 2 is fixedly connected with a slotted plate 17, and a slide groove 501 is provided on the upper surface of the slotted plate 17. The design of the slotted plate 17 can realize the discharge of the flowing coolant to avoid accumulation inside the work frame 2. The surface of the cavity slide 503 is slidably connected to the inner wall of the slide groove 501. The cavity slide 503 is set in an I-shape to improve the sliding stability. A tension spring 502 is fixedly connected to the inner wall of one side of the slide groove 501. One end of the tension spring 502 is fixed to one side of the cavity slide 503. The bottom end of the right-angle rod 510 is fixedly connected to the upper surface of the slotted plate 17, and a coolant storage tank 18 is arranged above the base 1. A pump body is arranged inside the coolant storage tank 18, which is not shown in the figure and can be connected with a connecting pipe 504 to pump out the coolant. The upper surface of the coolant storage tank 18 is fixedly connected with a connecting pipe 504, and the top end of the connecting pipe 504 is fixedly connected to the lower surface of the cavity slide 503. The connecting pipe 504 is designed as a hose and can adapt to the sliding of the cavity slide 503.

[0043] A stabilizing groove 8 is provided on one side of the working frame 2, and a rotating seat 19 is slidably connected to the inner wall of the stabilizing groove 8, and one end of the rotating seat 19 is rotatably connected to a load-bearing rod 20. The load-bearing rod 20 and the stabilizing groove 8 can improve the stability of the mold movement, and one end of the load-bearing rod 20 is fixedly connected to one side of the lower mold 14. A collecting box 10 is provided on the inner bottom wall of the working frame 2, and a hydraulic rod 3 is fixedly installed on one side of the working frame 2. Two cylinders 9 are fixedly installed on the upper surface of the working frame 2, and the output end of one of the cylinders 9 is fixedly connected to a mounting plate 11, and the lower surface of the mounting plate 11 is fixedly connected to an L-shaped hanger 12.

[0044] like Figure 2 and Figure 3As shown, the flip demoulding component 6 includes a push plate 603 fixedly connected to the output end of the hydraulic rod 3, and two through holes are penetrated on one side of the push plate 603. The inner walls of the two through holes are fixedly connected with air cylinders 608, and the inner walls of the two air cylinders 608 are slidably connected with piston rods 606. One end of the two piston rods 606 is fixedly connected with a right-angle plate 607, and one end of the two air cylinders 608 is fixedly connected with an air pipe 605. The surfaces of the two air pipes 605 are fixedly installed with solenoid valves 604. Through the set solenoid valve 604, the movement and locking of the piston inside the air cylinder 608 can be realized by turning the power on and off. The solenoid valve 604 is a prior art. The solenoid valve 604 consists of two parts, an electromagnetic coil and a valve body. Its main working principle is to use the electromagnetic force generated by the electromagnetic coil to push the valve core to move and realize on and off.

[0045] The two sides of the lower mold 14 are rotatably connected with gears 602 through the load-bearing rod 20 and the rotating shaft respectively, and the lower surface of the push plate 603 is fixedly connected with two racks 601, and the two racks 601 are respectively meshed with the corresponding two gears 602. Through the cooperation of the racks 601 and the gears 602, the flipping of the lower mold 14 can be realized. One side of the two right-angle plates 607 is penetrated with a rotating hole, and the inner walls of the two rotating holes are respectively rotatably connected with the surfaces of the corresponding load-bearing rods 20 and the rotating shaft. The rotating shaft is arranged on the other side of the load-bearing rod 20 and is fixedly connected with the side of the lower mold 14. The upper surface of the lower mold 14 is provided with an upper mold 13, and the upper surfaces of the upper mold 13 are respectively fixedly connected with a block 15 and a block 2 16. The surface of the L-shaped hanger 12 is adapted for sliding connection with the inner wall of the block 15, and the opening directions of the block 15 and the block 2 16 are opposite, which are adapted to the L-shaped hanger 12 and the L-shaped hanger 2 702.

[0046] like Figure 1 and Figure 8 As shown, the flip demoulding auxiliary component 7 includes a mounting plate 701 fixedly connected to the output end of another cylinder 9, and an L-shaped hanger 702 is fixedly connected to the lower surface of the mounting plate 701, and the surface of the L-shaped hanger 702 is adapted to slide with the inner wall of the clamping block 16.

[0047] Both sides of the L-shaped hanger 702 are fixedly connected with adapter rods 703, one side of the two adapter rods 703 is fixedly connected with multiple protrusions 704, the inner walls of both sides of the working frame 2 are fixedly connected with right-angle fixed rod sleeves 705, the inner walls of the two right-angle fixed rod sleeves 705 are slidably connected with right-angle sliding rods 706, one end of the two right-angle sliding rods 706 are respectively fixedly connected with protrusions 5 707 and rubber balls 708, through the cooperation of the set protrusions 4 704 and the protrusions 5 707, the lifting and lowering of the adapter rod 703 can be achieved without being interfered by movement, the surfaces of the two right-angle sliding rods 706 are sleeved with springs 709, and through the set rubber balls 708, when the lower mold 14 is vibrated, the lower mold 14 can be protected and the noise can be reduced.

[0048] The specific working method is: the cylinder 9 can be used to first drive the upper mold 13 and the lower mold 14 to separate, and the foaming material can be injected into the lower mold 14 through the injection molding machine inside the lower mold 14; then, the cylinder 9 drives the upper mold 13 to descend, and the lower mold 14 and the upper mold 13 are closed, so that the foaming material is foamed and formed inside the mold; the push plate 603 can be driven to move by the hydraulic rod 3; the movement of the push plate 603 cooperates with the closed solenoid valve 604 to enable the piston rod 606 to push the right-angle plate 607 to move synchronously with the mold; the movement process can fully foam the inside; the stability of the mold movement can be improved by the stable groove 8 and the rotating seat 19; during the movement of the mold, the protrusion 2 410 set at the bottom of the lower mold 14 will first contact and squeeze the protrusion 3 509 set on the liquid outlet oblique pipe 507; the protrusion 3 509 can drive the liquid outlet oblique pipe 507 to move synchronously; The tube 507 is compressed by the return spring 506 and drives the liquid outlet oblique tube 507 to descend until the liquid inlet adapter tube 411 arranged inside the perforated sphere 407 is directly opposite to the liquid outlet oblique tube 507, and the protrusion 2 410 and the protrusion 3 509 do not produce an extrusion relationship. At this time, the liquid outlet oblique tube 507 is reset by the return spring 506 and can be extended into the liquid inlet adapter tube 411. At this time, the controller controls the pump body arranged inside the coolant storage tank 18 to pass the coolant into the circulating copper tube 406 through the liquid inlet adapter tube 411, so that the cavity plate 404 can be cooled, and the cooling effect of the connection between the sole and the cavity plate 404 can be improved. The perforated sphere 407 and the dredging groove 412 can be set to realize that the circulating coolant flows out through the output port of the circulating copper tube 406 and is discharged through the perforated sphere 407, so that the coolant can flow continuously and the cooling efficiency can be improved.

[0049] After the liquid outlet oblique mouth pipe 507 is connected to the liquid inlet adapter pipe 411, the hydraulic rod 3 continues to drive the lower mold 14 to move, and cooling can be continued during the movement. When the projection 3 509 contacts the trapezoidal block 511, the projection 3 509 and the trapezoidal block 511 are squeezed, and the liquid outlet oblique mouth pipe 507 drops again, thereby realizing separation from the liquid inlet adapter pipe 411. The controller controls the coolant to stop discharging, and the separated liquid outlet oblique mouth pipe 507 is reset by the tension spring 502 and can be reset inside the slide groove 501.

[0050] The hydraulic rod 3 continues to drive the lower mold 14 to move, so that when the rotating seat 19 slides to the end of the stable groove 8, the clamping block 16 just cooperates with the L-shaped hanger 702 set under the second mounting plate 701, and another cylinder 9 drives the L-shaped hanger 702 to rise, thereby driving the upper mold 13 to separate from the lower mold 14. In the process of the mounting plate 701 rising, the adapter rod 703 and the protrusion 4 704 will reciprocate to squeeze the protrusion 5 707. When the protrusion 5 707 is squeezed, it will drive the right-angle slide bar 706 to slide. With the action of the spring 709, the right-angle slide bar 706 can drive the rubber ball 708 to continuously impact and vibrate the lower mold 14, thereby improving the demoulding effect. When the upper mold 13 rises to a certain position, the solenoid valve 604 is energized and opened. At this time, the hydraulic rod 3 Continue to move, the lower mold 14 no longer moves because the rotating seat 19 is pressed against the end of the stable groove 8, the electromagnetic valve 604 is opened, and when the hydraulic rod 3 is driven, the push plate 603 will drive the air cylinder 608 to slide on the surface of the piston rod 606, so that the push plate 603 drives the rack 601 to move, and the rack 601 moves to drive the gear 602 to rotate, and the rotation of the gear 602 can drive the lower mold 14 to achieve a 180-degree flip. During the flipping of the lower mold 14, the open hole sphere 407 below the lower mold 14 contacts the upper mold 13. Through the provided compression spring 403 and the damping slide bar 402, when the open hole sphere 407 is squeezed, the cavity tube 405 drives the cavity plate 404 to slide inside the cavity of the lower mold 14, so as to facilitate the ejection of the foamed sole and further improve the demoulding effect;

[0051] When the demoulding is reset as a whole, the hydraulic rod 3 contracts and the overall movement process is reversed. Since the protrusion 1 409, the protrusion 2 410 and the trapezoidal block 511 are not in the same plane, there will be no movement interference during the return stroke. During the reset, the protrusion 1 409 will first contact the protrusion 3 509 to make the liquid outlet oblique tube 507 descend. When the protrusion 1 409 is separated from the protrusion 3 509, the protrusion 3 509 continues to move in the empty area formed between the protrusion 1 409 and the protrusion 2 410. The continued squeezing of the protrusion 2 410 and the protrusion 3 509 can realize the descending of the liquid outlet oblique tube 507 again, and can provide avoidance for the reset of the perforated sphere 407. After being reset in place, the protrusion 2 410 is separated from the protrusion 3 509 to form the next working position.

[0052] The technical means disclosed in the solution of the present invention are not limited to the technical means disclosed in the above technical means, but also include technical solutions composed of equivalent replacement of the above technical features. Matters not covered in the present invention belong to the common knowledge of those skilled in the art.

Claims

1. A supercritical fluid foaming EVA sole molding device, comprising a base (1), the upper surface of the base (1) being fixedly connected to a working frame (2), the inner top wall of the working frame (2) being provided with a flip demoulding auxiliary component (7), an upper mold (13) and a lower mold (14) being provided inside the working frame (2), and flip demoulding components (6) being provided on both sides of the lower mold (14), characterized in that: Also includes; A cooling component (4), wherein the cooling component (4) is arranged inside the lower mold (14); The cooling assembly (4) comprises a cavity plate (404) adapted to slide with the inner wall of the cavity of the lower mold (14); the lower surface of the cavity plate (404) is fixedly connected to a cavity tube (405); the inner wall of the cavity plate (404) is provided with a circulating copper tube (406); the input port and the output port of the circulating copper tube (406) are both provided inside the cavity tube (405); the bottom end of the cavity tube (405) is fixedly connected to an open hole sphere (407); the open hole sphere (407) The inner wall of the hollow cylinder (405) is adapted and fixedly connected with a liquid inlet adapter tube (411); the input port of the circulating copper tube (406) is fixedly connected to the upper surface of the liquid inlet adapter tube (411); the surface of the hollow cylinder (405) is fixedly connected with a connecting rod (408); the bottom ends of the connecting rod (408) are respectively fixedly connected with a first protrusion (409) and a second protrusion (410); and a dredging groove (412) is formed between the surface of the liquid inlet adapter tube (411) and the inner wall of the perforated sphere (407); A cooling auxiliary component (5), the cooling auxiliary component (5) comprising a cavity slide (503) and a right-angle rod (510), the upper surface of the cavity slide (503) being fixedly connected to a fixed cylinder (505), the inner wall of the fixed cylinder (505) being adapted to be slidably connected to a liquid outlet oblique tube (507), the inner wall of the fixed cylinder (505) being fixedly connected to a return spring (506), the top end of the return spring (506) being fixedly connected to the lower surface of the liquid outlet oblique tube (507), the surface of the liquid outlet oblique tube (507) being fixedly connected to a bending rod (508), one end of the bending rod (508) being fixedly connected to a protrusion three (509), and the top end of the right-angle rod (510) being fixedly connected to a trapezoidal block (511).

2. A supercritical fluid foaming EVA sole molding equipment according to claim 1, characterized in that: The inner wall of the lower mold (14) is fixedly connected to a fixing plate (401), and a plurality of damping sliding holes are penetrated through the lower surface of the fixing plate (401). The inner walls of the plurality of damping sliding holes are adapted to be installed with damping sliding rods (402), and the top ends of the plurality of damping sliding rods (402) are fixedly connected to the lower surface of the cavity plate (404), and the surfaces of the plurality of damping sliding rods (402) are sleeved with compression springs (403), and the surface of the cavity plate (404) is in contact with the inner wall of the mold cavity of the lower mold (14).

3. A supercritical fluid foaming EVA sole molding equipment according to claim 1, characterized in that: The inner wall of the working frame (2) is fixedly connected to a slotted plate (17), the upper surface of the slotted plate (17) is provided with a slide groove (501), the surface of the cavity slide seat (503) is slidably connected to the inner wall of the slide groove (501), a tension spring (502) is fixedly connected to the inner wall of one side of the slide groove (501), one end of the tension spring (502) is fixedly connected to one side of the cavity slide seat (503), the bottom end of the right-angle rod (510) is fixedly connected to the upper surface of the slotted plate (17), a coolant storage tank (18) is arranged above the base (1), the upper surface of the coolant storage tank (18) is fixedly connected to a connecting pipe (504), and the top end of the connecting pipe (504) is fixedly connected to the lower surface of the cavity slide seat (503).

4. A supercritical fluid foaming EVA sole molding equipment according to claim 3, characterized in that: A stabilizing groove (8) is provided on one side of the working frame (2), and a rotating seat (19) is slidably connected to the inner wall of the stabilizing groove (8), and one end of the rotating seat (19) is rotatably connected to a bearing rod (20), and one end of the bearing rod (20) is fixedly connected to one side of the lower mold (14). A collecting box (10) is provided on the inner bottom wall of the working frame (2), and a hydraulic rod (3) is fixedly installed on one side of the working frame (2). Two cylinders (9) are fixedly installed on the upper surface of the working frame (2), and an output end of one of the cylinders (9) is fixedly connected to a mounting plate (11), and an L-shaped hanger (12) is fixedly connected to the lower surface of the mounting plate (11).

5. A supercritical fluid foaming EVA sole molding equipment according to claim 4, characterized in that: The flip demoulding assembly (6) comprises a push plate (603) fixedly connected to the output end of the hydraulic rod (3), one side of the push plate (603) is penetrated by two through holes, the inner walls of the two through holes are fixedly connected to the air cylinder (608), the inner walls of the two air cylinders (608) are slidably connected to the piston rods (606), one end of the two piston rods (606) is fixedly connected to the right angle plate (607), one end of the two air cylinders (608) is fixedly connected to the air pipe (605), and the surfaces of the two air pipes (605) are fixedly installed with solenoid valves (604).

6. The supercritical fluid foaming EVA sole molding equipment according to claim 5, characterized in that: The two sides of the lower mold (14) are rotatably connected to gears (602) via a bearing rod (20) and a rotating shaft, respectively; the lower surface of the push plate (603) is fixedly connected to two racks (601), the two racks (601) are respectively meshed with the corresponding two gears (602), one side of the two right-angle plates (607) is penetrated with a rotating hole, the inner walls of the two rotating holes are respectively rotatably connected to the surfaces of the corresponding bearing rod (20) and the rotating shaft, the upper surface of the lower mold (14) is provided with an upper mold (13), the upper surface of the upper mold (13) is respectively fixedly connected to a clamping block 1 (15) and a clamping block 2 (16), and the surface of the L-shaped hanger 1 (12) is adaptively slidably connected to the inner wall of the clamping block 1 (15).

7. The supercritical fluid foaming EVA sole molding equipment according to claim 4, characterized in that: The flip demoulding auxiliary component (7) comprises a second mounting plate (701) fixedly connected to the output end of another cylinder (9), a second L-shaped hanger (702) fixedly connected to the lower surface of the second mounting plate (701), and a surface of the second L-shaped hanger (702) is adaptively slidably connected to the inner wall of the second clamping block (16).

8. The supercritical fluid foaming EVA sole molding equipment according to claim 7, characterized in that: Both sides of the L-shaped hanger (702) are fixedly connected with adapter rods (703), and one side of the two adapter rods (703) is fixedly connected with a plurality of protrusions (704). The inner walls of both sides of the working frame (2) are fixedly connected with right-angle fixed rod sleeves (705), and the inner walls of the two right-angle fixed rod sleeves (705) are slidably connected with right-angle sliding rods (706). One end of the two right-angle sliding rods (706) is fixedly connected with a protrusion (707) and a rubber ball (708) at both ends, and the surfaces of the two right-angle sliding rods (706) are sleeved with springs (709).

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