CN117283778A

CN117283778A - EVA foaming sole secondary forming machine

Info

Publication number: CN117283778A
Application number: CN202311566423.5A
Authority: CN
Inventors: 吴志良; 吴志炫
Original assignee: Jinjiang Bohong Machinery Co ltd
Current assignee: Jinjiang Bohong Machinery Co ltd
Priority date: 2023-11-23
Filing date: 2023-11-23
Publication date: 2023-12-26
Anticipated expiration: 2043-11-23
Also published as: CN117283778B

Abstract

The invention relates to the technical field of foam sole molding, in particular to an EVA foam sole secondary molding machine, which comprises an extrusion molding module; and the rectangular plate is placed in the extrusion molding module. When the EVA foaming sole is subjected to secondary molding in the conventional method, a planar EVA material is usually placed in a placing hole in the conventional mold in a pressing mode, then an upper mold is covered in a lower mold for secondary molding, then the mold is removed from hot-pressing equipment, and then the secondary molded EVA foaming sole is taken out. The limiting mechanism is matched with the pushing mechanism, and the limiting mechanism can automatically align the sole which is not subjected to secondary forming to the position right above the lower die mechanism and limit the sole which is not subjected to secondary forming, so that the consumption of labor force is reduced.

Description

EVA foaming sole secondary forming machine

Technical Field

The invention relates to the technical field of foam sole molding, in particular to an EVA foam sole secondary molding machine.

Background

The secondary molding principle of the EVA foaming sole is that firstly EVA foaming particles are heated and melted, and are molded into a planar EVA material in an extrusion or pressing mode, then the planar EVA material is further put into a secondary molding machine, and is heated and pressed again at a specific temperature and pressure, and finally the planar EVA material is molded into the required EVA sole; thus, the EVA foam sole overmolding machine produces the final sole product in two sequential molding steps.

When the EVA foaming sole is subjected to secondary molding, the surface of the planar EVA material is coated with an anti-sticking agent, the planar EVA material is placed in a placement hole on an existing mold in a pressing mode, then the upper mold is covered in a lower mold, the mold is placed in existing hot pressing equipment, the hot pressing equipment carries out hot pressing treatment on the mold, the planar EVA material is subjected to secondary molding by the mold, and therefore the EVA foaming sole is subjected to secondary molding, the mold is removed from the hot pressing equipment and cooled, and then the mold is opened and the secondary molded EVA foaming sole is taken out from the lower mold.

However, in the method, the sole is required to be manually pressed into the mold, and the formed sole is required to be taken out of the lower mold through the existing clamping equipment after the EVA foam sole is secondarily formed, so that the step of taking out the formed sole is increased, and the labor consumption is increased.

Disclosure of Invention

Based on this, it is necessary to provide a secondary forming machine for EVA foaming soles, which aims to solve the problems generated when the EVA foaming soles are subjected to secondary forming in the prior art.

In order to achieve the above purpose, the present invention is implemented by adopting the following technical scheme: an EVA foaming shoe sole secondary molding machine comprises an extrusion molding module.

The rectangular plate is placed in the extrusion molding module, sliding openings are formed in the upper ends of the rectangular plate, two sliding grooves are symmetrically formed in the inner end faces of the front side wall and the rear side wall of each sliding opening, and rectangular grooves are formed in the upper side wall and the lower side wall of each sliding groove.

And the cooling device is arranged in the sliding opening and is used for cooling the EVA foaming sole formed by the secondary forming.

The lower die device is arranged between the two sliding grooves and comprises sliding strips which are connected in the sliding grooves in a sliding mode, a rectangular sliding plate is arranged between the two sliding strips, two forming holes are symmetrically formed in the front and back of the rectangular sliding plate, a sliding cavity is formed in the rectangular sliding plate, a strip-shaped plate is arranged at the lower end of each forming hole, a lower die mechanism is connected in the forming hole in a sliding mode, a plurality of waist-shaped holes are formed in the periphery of the upper end of each forming hole, a limiting mechanism is arranged in each waist-shaped hole, a pushing mechanism is arranged in each sliding cavity, and magnets are arranged at the right end of each rectangular sliding plate.

The upper die device is arranged on the rectangular plate and comprises a lower pressing plate, and two upper modules are symmetrically arranged at the lower end of the lower pressing plate in a front-back mode and can be detached.

According to the embodiment of the invention, the cooling device comprises an air inlet box arranged on the bottom wall of the sliding opening, the air inlet box is in a right trapezoid structure, the inclined surface of the air inlet box faces to the right, two air transmission pipes are symmetrically arranged on the inclined surface of the air inlet box front and back, a plurality of evenly distributed exhaust holes are formed in the upper end of each air transmission pipe, a supporting block fixedly connected with the upper end of each air transmission pipe is arranged between every two adjacent exhaust holes, and two air inlet pipes are symmetrically arranged on the left end of the air inlet box front and back.

According to the embodiment of the invention, the upper die device further comprises four multi-section telescopic rods arranged at four corners of the lower end of the lower pressing plate, two auxiliary plates are symmetrically arranged at the front end and the rear end of the rectangular plate, two round holes are formed in the auxiliary plates, the round holes are sleeved on the multi-section telescopic rods, a cylindrical barrel is arranged at the lower end of the multi-section telescopic rods, the upper end of the cylindrical barrel is fixedly connected with the lower end of the round hole, connecting springs are sleeved on the periphery of the multi-section telescopic rods, and the upper end and the lower end of each connecting spring are respectively connected with the lower end of the lower pressing plate and the bottom of the cylindrical barrel.

According to the embodiment of the invention, the lower die mechanism comprises a lifting plate vertically penetrating through the middle of the strip-shaped plate in a sliding mode, the lifting plate is of a U-shaped structure with an opening facing downwards, the upper end of the lifting plate is detachably provided with a lower die plate, the lower die plate is in sliding fit with a forming hole, the lower end of the lower die plate is provided with a plurality of rectangular cylindrical rods, and the lower end of each cylindrical rod is rotatably connected with a ball.

According to the embodiment of the invention, the limiting mechanism comprises a guide rail rod transversely arranged in the waist-shaped hole along the length direction of the waist-shaped hole, a pushing column in sliding fit with the waist-shaped hole is sleeved on the guide rail rod, the pushing column is of an inverted L-shaped structure, a limiting spring sleeved on the guide rail rod is arranged between the pushing column and the wall of the waist-shaped hole, a jacking column is arranged at the lower end of the pushing column, and semicircular protrusions are arranged at the lower end of the jacking column.

According to the embodiment of the invention, the pushing mechanism comprises a lifting column vertically sliding to penetrate through the lower cavity wall of the sliding cavity, the lower end of the lifting column is rotationally connected with a sliding bead, the upper end of the lifting column is provided with a connecting plate positioned in the sliding cavity, a spring telescopic rod is arranged between the upper end of the connecting plate and the lower cavity wall of the sliding cavity, the front end and the rear end of the connecting plate are symmetrically provided with two pushing rings, the shapes of the pushing rings are consistent with the shapes of forming holes, the upper ends of the pushing rings are provided with a plurality of pushing blocks, and the positions of the pushing blocks are in one-to-one correspondence with the positions of the cylindrical rods.

According to the embodiment of the invention, the lower pressing plate is provided with a plurality of alignment holes, and the positions of the plurality of alignment holes are uniformly distributed around the two upper modules and correspond to the positions of the plurality of pushing columns one by one.

According to the embodiment of the invention, two baffles are symmetrically arranged at the position, close to the right end, of the sliding bar, and the baffles are in sliding fit with the rectangular grooves.

In summary, the present invention includes at least one of the following beneficial technical effects: 1. the lower die mechanism can directly eject the sole after the sole is secondarily molded, an operator does not need to use a tool to take out the sole, and the step of ejecting the sole and the step of opening the lower die device are synchronously realized, so that the step of independently taking out the sole is reduced, and the sole taking-out efficiency is improved.

2. The limiting mechanism is matched with the pushing mechanism, the sole which is not subjected to secondary forming can be directly placed on the lower die mechanism, the sole which is not subjected to secondary forming is not required to be pressed in the forming hole, and the limiting mechanism can automatically align the sole which is not subjected to secondary forming to the position right above the lower die mechanism and limit the sole which is not subjected to secondary forming, so that the consumption of labor force is reduced.

3. The cooling device is used for cooling the formed sole through cold air, so that the function of rapid cooling and forming of the sole is realized, and the sole is convenient to take out.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.

Fig. 1 shows a schematic perspective view of an EVA foam sole secondary molding machine according to an embodiment of the present invention.

Fig. 2 shows a schematic perspective view of an extrusion molding module removed by the EVA foam sole secondary molding machine according to an embodiment of the present invention.

Fig. 3 shows a front view of an EVA foam sole secondary molding machine provided according to an embodiment of the present invention with extrusion molding modules removed.

Fig. 4 shows a left side view of an EVA foam sole post-forming machine provided according to an embodiment of the present invention with extrusion forming modules removed.

Figure 5 shows a cross-sectional view of A-A in figure 3.

Fig. 6 shows an enlarged view of the N region in fig. 5.

Fig. 7 shows a cross-sectional view of B-B in fig. 4.

Fig. 8 shows a schematic structural view of a rectangular plate and a cooling device of an EVA foam sole secondary molding machine according to an embodiment of the present invention.

Fig. 9 shows a schematic structural view of a lower die device of an EVA foam sole secondary molding machine according to an embodiment of the present invention.

Wherein the above figures include the following reference numerals: 1. extrusion molding of the module; 2. a rectangular plate; 21. a sliding opening; 22. a chute; 23. rectangular grooves; 3. a cooling device; 31. an air inlet box; 32. an air transfer pipe; 33. an exhaust hole; 34. a support block; 35. an air inlet pipe; 4. a lower die device; 41. a sliding bar; 411. a baffle; 42. a rectangular slide plate; 43. forming a hole; 44. a strip-shaped plate; 45. a lower die mechanism; 451. a lifting plate; 452. a lower template; 453. a cylindrical rod; 46. a waist-shaped hole; 47. a limiting mechanism; 471. a guide rail rod; 472. pushing the column; 473. a limit spring; 474. jacking the column; 48. a pushing mechanism; 481. lifting columns; 482. a connecting plate; 483. a spring telescoping rod; 484. pushing the ring; 485. pushing the block; 49. a magnet; 5. an upper die device; 51. a lower pressing plate; 511. aligning the holes; 52. an upper module; 53. a multi-section telescopic rod; 54. an auxiliary plate; 55. a cylinder barrel; 56. and a connecting spring.

Detailed Description

In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the invention, whereby the invention is not limited to the specific embodiments disclosed below.

Referring to fig. 1, an EVA foam sole secondary molding machine includes an extrusion molding module 1.

Referring to fig. 3, 4, 5 and 8, the EVA foam sole secondary molding machine further comprises a rectangular plate 2, the rectangular plate 2 is placed in the extrusion molding module 1, a sliding opening 21 is formed at the upper end of the rectangular plate 2, two sliding grooves 22 are symmetrically formed in the inner end surfaces of the front and rear side walls of the sliding opening 21, and rectangular grooves 23 are formed in the upper and lower side walls of the sliding grooves 22.

Referring to fig. 2 and 7, the EVA foam sole secondary molding machine further includes a cooling device 3, the cooling device 3 is disposed in the sliding opening 21, and the cooling device 3 is used for cooling the EVA foam sole formed secondarily.

Referring to fig. 2, 5, 7 and 9, the EVA foam sole secondary molding machine further comprises a lower mold device 4, the lower mold device 4 is arranged between the two slide grooves 22, the lower mold device 4 comprises sliding strips 41 which are slidably connected in the slide grooves 22, a rectangular sliding plate 42 is installed between the two sliding strips 41, two molding holes 43 are symmetrically formed in the rectangular sliding plate 42 in a front-back manner, a sliding cavity is formed in the rectangular sliding plate 42, a strip-shaped plate 44 is installed at the lower end of the molding hole 43, a lower mold mechanism 45 is slidably connected in the molding hole 43, a plurality of waist-shaped holes 46 are formed in the periphery of the upper end of the molding hole 43, a limiting mechanism 47 is arranged in the waist-shaped holes 46, a pushing mechanism 48 is arranged in the sliding cavity, and a magnet 49 is installed at the right end of the rectangular sliding plate 42.

Referring to fig. 8 and 9, two baffles 411 are symmetrically installed on the sliding strip 41 near the right end, and the baffles 411 are in sliding fit with the rectangular slots 23.

Referring to fig. 5, fig. 7, fig. 8 and fig. 9, in specific operation, initially, the rectangular plate 2 is located at the outer side of the extrusion molding module 1, the extrusion molding module 1 is a conventional hot pressing device, the rectangular slide plate 42 is manually pulled out from the sliding opening 21, the rectangular slide plate 42 slides in the two sliding grooves 22 through the two sliding strips 41, the two baffles 411 on the sliding strips 41 slide in the rectangular grooves 23, the side walls of the rectangular grooves 23 are matched with the baffles 411, the sliding distance of the sliding strips 41 is limited, the phenomenon that the sliding strips 41 are separated from the sliding grooves 22 is avoided, the two lower die mechanisms 45 are driven to move through the two molding holes 43 in the sliding process of the rectangular slide plate 42, the two lower die mechanisms 45 move and are matched with the cooling device 3, the cooling device 3 pushes the two lower die mechanisms 45 upwards, meanwhile, the rectangular slide plate 42 drives the pushing mechanisms 48 to move, the pushing mechanisms 48 are contacted with the cooling device 3, the cooling device 3 pushes the pushing mechanisms 48, the sliding mechanisms 47 limit the sliding distance of the sliding strips 41, the sliding mechanisms 47 are separated from the sliding mechanisms 47, and the sliding mechanisms 47 are far away from the limiting mechanisms 47.

Referring to fig. 5 and 7, the lower die mechanism 45 includes a lifting plate 451 vertically sliding through the middle of the strip-shaped plate 44, the lifting plate 451 has a U-shaped structure with a downward opening, a lower die plate 452 is detachably mounted at the upper end of the lifting plate 451, the lower die plate 452 is slidably matched with the forming hole 43, a plurality of rectangular cylindrical rods 453 are mounted at the lower end of the lower die plate 452, and balls are rotatably connected at the lower end of the cylindrical rods 453.

Referring to fig. 8, the cooling device 3 includes an air inlet box 31 mounted on the bottom wall of the sliding opening 21, the air inlet box 31 has a right trapezoid structure, and the inclined surface of the air inlet box 31 faces to the right.

Referring to fig. 5, 7 and 8, in a specific operation, in the sliding process of the rectangular sliding plate 42, the rectangular sliding plate 42 drives the lifting plate 451 through the strip-shaped plate 44 at the lower end of the forming hole 43, the lifting plate 451 drives the lower template 452 to move, the lower template 452 drives the plurality of cylindrical rods 453 at the lower end to move, the balls at the lower end of the cylindrical rods 453 are matched with the inclined plane of the air inlet box 31, the inclined plane of the air inlet box 31 pushes the cylindrical rods 453, the cylindrical rods 453 are stressed to drive the lower template 452 to move upwards along the forming hole 43, and the lower template 452 moves to the upper end of the forming hole 43, so that the sole is placed conveniently.

Referring to fig. 5-7, the limiting mechanism 47 includes a guide rail rod 471 transversely mounted in the waist-shaped hole 46 along the length direction of the waist-shaped hole 46, a pushing column 472 slidably engaged with the waist-shaped hole 46 is sleeved on the guide rail rod 471, the pushing column 472 is in an inverted L-shaped structure, a limiting spring 473 sleeved on the guide rail rod 471 is mounted between the pushing column 472 and the wall of the waist-shaped hole 46, a jacking column 474 is mounted at the lower end of the pushing column 472, and a semicircular protrusion is disposed at the lower end of the jacking column 474.

Referring to fig. 5-7, the pushing mechanism 48 includes a lifting column 481 vertically sliding through the lower cavity wall of the sliding cavity, a sliding bead is rotatably connected to the lower end of the lifting column 481, a connecting plate 482 located inside the sliding cavity is installed at the upper end of the lifting column 481, a spring telescopic rod 483 is installed between the upper end of the connecting plate 482 and the lower cavity wall of the sliding cavity, two pushing rings 484 are symmetrically installed at the front end and the rear end of the connecting plate 482, the shape of the pushing rings 484 is consistent with the shape of the forming hole 43, a plurality of pushing blocks 485 are installed at the upper end of the pushing rings 484, and the positions of the pushing blocks 485 are in one-to-one correspondence with the positions of the cylindrical rods 453.

Referring to fig. 5-7, in a specific operation, during the sliding process of the rectangular sliding plate 42, the rectangular sliding plate 42 drives the connecting plate 482 and the two pushing rings 484 to move through the lifting column 481, the sliding beads at the lower end of the lifting column 481 are matched with the inclined plane of the air inlet box 31 during the moving process of the lifting column 481, the inclined plane of the air inlet box 31 drives the plurality of pushing blocks 485 to move upwards through the connecting plate 482 and the two pushing rings 484, the connecting plate 482 extrudes the spring telescopic rod 483, the plurality of pushing blocks 485 respectively push semicircular bulges at the lower end of the plurality of lifting columns 474, the lifting columns 474 are stressed to drive the pushing columns 472 to move away from the forming holes 43, the pushing columns 472 move along the guide rail rods 471 and extrude the limiting springs 473, so that the plurality of pushing columns 472 are separated, and the sole is conveniently placed on the lower template 452.

Then two soles are placed on the two lower templates 452 in a manual mode, at this time, the soles are located between the upper end of the rectangular sliding plate 42 and the plurality of pushing posts 472 on the same side, then the rectangular sliding plate 42 is manually moved towards the direction of the sliding opening 21, the rectangular sliding plate 42 drives the lifting posts 481 to reset, the extruded spring telescopic rods 483 reset and drive the two pushing rings 484 to descend through the connecting plates 482, the two pushing rings 484 drive the plurality of pushing blocks 485 to downwards reset, the extruded limiting springs 473 drive the pushing posts 472 to move towards the soles, the plurality of pushing posts 472 on the same side push the soles, so that the placed soles are limited and aligned, the soles are located right above the lower templates 452, and the phenomenon of deflection of the soles in the moving process of the soles can not occur, meanwhile, the rectangular sliding plate 42 drives the lifting plates 451 to be separated from the air inlet boxes 31, the lower templates 452 move downwards through self gravity, and after the rectangular sliding plate 42 drives the magnets 49 to magnetically attract the side walls of the sliding opening 21, the pushing of the rectangular sliding plate 42 is stopped.

Referring to fig. 8, two air transfer pipes 32 are symmetrically installed on the inclined plane of the air inlet box 31, a plurality of evenly distributed air discharge holes 33 are formed in the upper end of the air transfer pipes 32, a supporting block 34 fixedly connected with the upper end of the air transfer pipes 32 is arranged between two adjacent air discharge holes 33, and two air inlet pipes 35 are symmetrically installed on the left end of the air inlet box 31.

Referring to fig. 8, in specific operation, after the sole is placed, the rectangular plate 2 is moved into the extrusion molding module 1, the rectangular plate 2 drives the air inlet box 31 to move into the extrusion molding module 1, and then two existing round pipes are connected to the two air inlet pipes 35, and the two air transfer pipes 32 support the two lower templates 452 through the plurality of support blocks 34, so that stability of the secondary molding process of the sole is ensured.

Referring to fig. 7, the EVA foam sole secondary molding machine further includes an upper mold device 5, the upper mold device 5 is disposed on the rectangular plate 2, the upper mold device 5 includes a lower pressing plate 51, and two upper modules 52 are symmetrically and detachably mounted on the lower end of the lower pressing plate 51.

Referring to fig. 7, the upper mold device 5 further includes four multi-section telescopic rods 53 installed at four corners of the lower end of the lower pressing plate 51, two auxiliary plates 54 are symmetrically installed at the front and rear ends of the rectangular plate 2, two circular holes are formed in the auxiliary plates 54, the circular holes are sleeved on the multi-section telescopic rods 53, a cylindrical drum 55 is installed at the lower end of the multi-section telescopic rods 53, the upper end of the cylindrical drum 55 is fixedly connected with the lower end of the circular hole, a connecting spring 56 is sleeved on the periphery of the multi-section telescopic rods 53, and the upper end and the lower end of the connecting spring 56 are respectively connected with the lower end of the lower pressing plate 51 and the bottom of the cylindrical drum 55.

Referring to fig. 7, the lower platen 51 is provided with a plurality of alignment holes 511, and the positions of the alignment holes 511 are uniformly distributed around the two upper modules 52 and correspond to the positions of the pushing columns 472 one by one.

Referring to fig. 5-7, in specific operation, when the rectangular plate 2 moves into the extrusion molding module 1, the rectangular plate 2 drives a plurality of cylinder barrels 55 to move through two auxiliary plates 54, the cylinder barrels 55 drive the lower pressing plate 51 to move through a plurality of telescopic rods 53, the lower pressing plate 51 drives two upper modules 52 to move into the extrusion molding module 1, then the extrusion molding module 1 is started, the extrusion molding module 1 pushes the lower pressing plate 51, the lower pressing plate 51 drives the two upper modules 52 to move towards the sole direction, four telescopic rods 53 are extruded, the two upper modules 52 moving downwards push soles into the molding holes 43, the upper modules 52 are matched with the lower templates 452 to realize the function of secondary molding of soles, then the extrusion molding module 1 is reset after a period of pressure maintaining, the compressed plurality of telescopic rods 53 are reset and the lower pressing plate 51 drive the two upper modules 52 to be separated from the soles, then cold air is injected into the two air inlet pipes 35 through the two existing circular pipes, the cold air in the two air inlet pipes 35 enters the box 31, the lower pressing plate 51 drives the two upper modules 52 to push soles into the soles through the two upper air inlet pipes 31, the two lower sliding plates 31 to push the soles into the cylindrical rods 33 out of the molding holes 43, the soles are pulled out of the cylindrical rods 33 to be cooled down, the soles are conveniently and then the soles are shaped, the soles are shaped and the soles are shaped by the cylindrical rods are conveniently and the soles are cooled and the soles are shaped, the soles are shaped and the soles are cooled and the soles are conveniently and the soles are cooled and the holes are cooled and the soles are cooled.

In the description of the embodiments of the present invention, it should be noted that, directions or positional relationships indicated by terms such as "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "outer", etc., are based on those shown in the drawings, are merely for convenience of describing the embodiments of the present invention and for simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Furthermore, in the description of the present invention, unless otherwise indicated, the meaning of "a plurality", "a plurality of groups" is two or more.

In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "connected," "mounted," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

The embodiments of the present invention are all preferred embodiments of the present invention, and are not limited in scope by the present invention, so that all equivalent changes according to the structure, shape and principle of the present invention are covered in the scope of the present invention.

Claims

1. The EVA foaming shoe sole secondary forming machine comprises an extrusion forming module (1), and is characterized in that:

the rectangular plate (2) is placed in the extrusion molding module (1), a sliding opening (21) is formed in the upper end of the rectangular plate (2), two sliding grooves (22) are symmetrically formed in the inner end surfaces of the front side wall and the rear side wall of the sliding opening (21), and rectangular grooves (23) are formed in the upper side wall and the lower side wall of the sliding groove (22);

the cooling device (3) is arranged in the sliding opening (21), and the cooling device (3) is used for cooling the EVA foaming sole formed in the secondary mode;

the lower die device (4) is arranged between the two sliding grooves (22), the lower die device (4) comprises sliding strips (41) which are connected in the sliding grooves (22) in a sliding manner, a rectangular sliding plate (42) is arranged between the two sliding strips (41), two forming holes (43) are symmetrically formed in the rectangular sliding plate (42) in a front-back manner, a sliding cavity is formed in the rectangular sliding plate (42), a strip-shaped plate (44) is arranged at the lower end of the forming hole (43), a lower die mechanism (45) is connected in the forming hole (43) in a sliding manner, a plurality of waist-shaped holes (46) are formed in the periphery of the upper end of the forming hole (43), a limiting mechanism (47) is arranged in the waist-shaped holes (46), a pushing mechanism (48) is arranged in the sliding cavity, and a magnet (49) is arranged at the right end of the rectangular sliding plate (42);

the upper die device (5) is arranged on the rectangular plate (2), the upper die device (5) comprises a lower pressing plate (51), and two upper modules (52) are symmetrically arranged at the lower end of the lower pressing plate (51) in a front-back mode and detachably.

2. The EVA foam sole secondary molding machine according to claim 1, wherein: the cooling device (3) comprises an air inlet box (31) arranged on the bottom wall of the sliding opening (21), the air inlet box (31) is of a right trapezoid structure, two air delivery pipes (32) are symmetrically arranged on the inclined surface of the air inlet box (31) front and back, a plurality of evenly distributed exhaust holes (33) are formed in the upper end of each air delivery pipe (32), supporting blocks (34) fixedly connected with the upper ends of the air delivery pipes (32) are arranged between every two adjacent exhaust holes (33), and two air inlet pipes (35) are symmetrically arranged on the left end of the air inlet box (31).

3. The EVA foam sole secondary molding machine according to claim 1, wherein: the upper die device (5) further comprises four multi-section telescopic rods (53) arranged at four corners of the lower end of the lower pressing plate (51), two auxiliary plates (54) are symmetrically arranged at the front end and the rear end of the rectangular plate (2), two round holes are formed in the auxiliary plates (54), the round holes are sleeved on the multi-section telescopic rods (53), a cylindrical barrel (55) is arranged at the lower end of each multi-section telescopic rod (53), the upper end of each cylindrical barrel (55) is fixedly connected with the lower end of each round hole, connecting springs (56) are sleeved on the periphery of each multi-section telescopic rod (53), and the upper end and the lower end of each connecting spring (56) are respectively connected with the lower end of the lower pressing plate (51) and the bottom of each cylindrical barrel (55).

4. The EVA foam sole secondary molding machine according to claim 1, wherein: lower mould mechanism (45) are including vertical slip run through lifter plate (451) at strip shaped plate (44) middle part, lifter plate (451) are open side down's U type structure, and lifter plate (451) upper end demountable installation has lower bolster (452), lower bolster (452) and shaping hole (43) sliding fit, and a plurality of cylinder poles (453) that are the rectangle and distribute are installed to lower bolster (452) lower extreme, and cylinder pole (453) lower extreme rotation is connected with the ball.

5. The EVA foam sole secondary molding machine according to claim 1, wherein: the limiting mechanism (47) comprises a guide rail rod (471) transversely arranged in the waist-shaped hole (46) along the length direction of the waist-shaped hole (46), a pushing column (472) in sliding fit with the waist-shaped hole (46) is sleeved on the guide rail rod (471), the pushing column (472) is of an inverted L-shaped structure, a limiting spring (473) sleeved on the guide rail rod (471) is arranged between the pushing column (472) and the wall of the waist-shaped hole (46), a jacking column (474) is arranged at the lower end of the pushing column (472), and semicircular protrusions are arranged at the lower end of the jacking column (474).

6. The EVA foam sole secondary molding machine according to claim 4, wherein: the pushing mechanism (48) comprises a lifting column (481) vertically sliding and penetrating through the lower cavity wall of the sliding cavity, sliding balls are rotatably connected to the lower end of the lifting column (481), a connecting plate (482) located inside the sliding cavity is arranged at the upper end of the lifting column (481), a spring telescopic rod (483) is arranged between the upper end of the connecting plate (482) and the lower cavity wall of the sliding cavity, two pushing rings (484) are symmetrically arranged at the front end and the rear end of the connecting plate (482), the shape of each pushing ring (484) is consistent with that of a forming hole (43), a plurality of pushing blocks (485) are arranged at the upper end of each pushing ring (484), and the positions of the pushing blocks (485) correspond to the positions of the cylindrical rods (453) one by one.

7. The EVA foam sole post-forming machine of claim 5, wherein: a plurality of alignment holes (511) are formed in the lower pressing plate (51), and the positions of the alignment holes (511) are uniformly distributed around the two upper modules (52) and correspond to the positions of the pushing columns (472) one by one.

8. The EVA foam sole secondary molding machine according to claim 1, wherein: two baffles (411) are symmetrically arranged at the position, close to the right end, of the sliding strip (41), and the baffles (411) are in sliding fit with the rectangular grooves (23).