A vertical EVA small foaming machine

Abstract

The present invention discloses a columnar EVA small foaming machine in the field of EVA foaming technology, which includes an externally connected control console and its corresponding control circuit, a support plate, a mounting frame, a top cover, a first mounting plate, a second mounting plate, an upper mold, a lower mold, a transmission mechanism and a counterweight. The control console is arranged on the side of the support plate, the mounting frame is fixedly connected to the upper end of the support plate, the top cover is fixedly connected to the upper end of the mounting frame, the first mounting plate is located above the second mounting plate, the upper mold is slidably connected to the lower end of the first mounting plate, the lower mold is slidably connected to the upper mold, and the components of the transmission mechanism are respectively arranged above the first mounting plate and below the second mounting plate. The transmission mechanism is used to make the upper mold and the lower mold extrude each other through the second mounting plate and the first mounting plate by the gravity of the counterweight; during the foaming process after mold closing, the equipment no longer needs to do active work, so that the working time of the driving parts of the equipment of the present invention is significantly shortened, effectively improving the working life of the driving parts.

Description

Technical Field

[0001] The present invention relates to the technical field of EVA foaming, and specifically to a columnar EVA small foaming machine. Background Technique

[0002] An EVA foaming machine is a shaping device for shaping a foaming agent solution. Its purpose is to process the produced foam into the shape we want. An EVA foaming machine is generally divided into two parts, namely a mold for heat preservation and shaping and a lifting device for pressurization. When in use, the prepared foaming agent solution should be placed in the mold first, and then the machine is started. The mold is heated to a suitable temperature, and at the same time, the lifting device will extrude the mold to ensure the airtightness of the mold.

[0003] In order to ensure the airtightness after the foaming mold is closed, traditional small EVA foaming machines mostly use a hydraulic press to continuously apply increased pressure to the mold, generating a large extrusion force between the upper and lower molds, thereby ensuring the airtightness between the upper and lower molds and providing a sealed foaming environment for the foaming material. Since the foaming process of the foaming machine is generally long, the hydraulic press needs to maintain a large and stable output state for a long time, causing a large working load on the hydraulic press, and the long-term work of the hydraulic press will also generate a large amount of energy loss, increasing the production cost of foaming.

[0004] Based on this, the present invention designs a columnar EVA small foaming machine to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a columnar EVA small foaming machine to solve the problem that in order to ensure the airtightness after the foaming mold is closed, traditional small EVA foaming machines mostly use a hydraulic press to continuously apply increased pressure to the mold, generating a large extrusion force between the upper and lower molds, thereby ensuring the airtightness between the upper and lower molds and providing a sealed foaming environment for the foaming material. Since the foaming process of the foaming machine is generally long, the hydraulic press needs to maintain a large and stable output state for a long time, causing a large working load on the hydraulic press, and the long-term work of the hydraulic press will also generate a large amount of energy loss, increasing the production cost of foaming as described in the above background technique.

[0006] To achieve the above object, the present invention provides the following technical solution: A vertical EVA small foaming machine, including an external console and its corresponding control circuit, a support plate, a mounting frame, a top cover, a first mounting plate, a second mounting plate, an upper mold, a lower mold, a transmission mechanism and a counterweight. The console is arranged on the side of the support plate, the mounting frame is fixedly connected to the upper end of the support plate, the top cover is fixedly connected to the upper end of the mounting frame, the first mounting plate and the second mounting plate are both vertically slidably connected to the inner wall of the mounting frame, the first mounting plate is located above the second mounting plate, the upper mold is longitudinally slidably connected to the lower end of the first mounting plate, the lower mold is vertically slidably connected to the upper mold, and the components of the transmission mechanism are respectively arranged above the first mounting plate and below the second mounting plate. The transmission mechanism is used to make the upper mold and the lower mold extrude each other through the second mounting plate and the first mounting plate by the gravity of the counterweight.

[0007] As a further solution of the present invention, the transmission mechanism includes a mounting column. The mounting column is vertically and fixedly connected to the lower end of the second mounting plate. A first pulley and a second pulley are sequentially rotatably connected to the inner wall of the mounting column from top to bottom. First auxiliary pulleys are respectively arranged above the left and right sides of the first pulley, and second auxiliary pulleys are respectively arranged above the left and right sides of the second pulley. First through grooves are respectively penetrated through the left and right side walls of the mounting frame corresponding to the mounting column. First fixing plates are fixedly connected to the front and rear inner walls of the first through groove. A first steering pulley is rotatably connected to the upper half between the left first fixing plates, a connecting plate is fixedly connected to the lower half between the left first fixing plates, a second steering pulley is rotatably connected to the lower half between the right first fixing plates, a steering mechanism is arranged at the upper end of the first mounting plate, the connecting plate is fixedly connected with a steel cable, and the steel cable passes through the upper end of the left second auxiliary pulley - the lower end of the second pulley - the upper end of the right second auxiliary pulley - the lower right side of the second steering pulley - the upper end of the right first auxiliary pulley - the lower end of the first pulley - the upper end of the left first auxiliary pulley - the lower end of the first steering pulley - the path of the steering mechanism and then is fixedly connected to the upper end of the counterweight. The counterweight is vertically slidably connected to the left side wall of the mounting frame and a driving unit is arranged inside the counterweight. The driving unit is used to drive the counterweight to perform vertical displacement.

[0008] As a further solution of the present invention, the steering mechanism includes a second through groove opened on the left side wall of the mounting frame. Second fixing plates are fixedly connected to the front and rear inner walls of the second through groove. A third steering pulley is rotatably connected to the upper half between the second fixing plates. The steel cable bypasses the upper end of the third steering pulley and is fixedly connected to the upper end of the counterweight.

[0009] As a further solution of the present invention, pressure reducing blocks are fixedly connected to the left and right sides of the upper end of the support plate located inside the installation frame. Second elastic telescopic rods are fixedly connected to the upper ends of the pressure reducing blocks. A locking mechanism is arranged inside the second elastic telescopic rods, and the locking mechanism is used to control the fixed length of the second elastic telescopic rods. The upper ends of the second elastic telescopic rods are fixedly connected to a balance block together. A first engaging block is fixedly connected to the upper end of the balance block. A load-bearing block is fixedly connected to the lower end of the installation column. A rope releasing mechanism is fixedly connected to the lower end of the load-bearing block. A second engaging block is fixedly connected to the lower end of the rope releasing mechanism. The first engaging block and the second engaging block can be docked and engaged.

[0010] As a further solution of the present invention, a third installation plate is fixedly connected to the lower end of the second installation plate. Rotating shafts are arranged between the third installation plate and the inside of the installation frame corresponding to the first auxiliary pulley and the second auxiliary pulley. The first auxiliary pulley and the second auxiliary pulley are respectively rotatably connected to the corresponding rotating shafts.

[0011] As a further solution of the present invention, third chutes are horizontally penetrated and opened on the front side wall of the installation frame corresponding to the heights of the first auxiliary pulley and the second auxiliary pulley. Fourth chutes are horizontally opened on the front side wall of the third installation plate corresponding to the heights of the first auxiliary pulley and the second auxiliary pulley. Second sliders and third sliders are respectively fixedly connected to the front and rear ends of the rotating shaft. The second sliders are respectively horizontally slidably connected to the third chutes at the corresponding heights. The third sliders are respectively horizontally slidably connected to the fourth chutes at the corresponding heights. A turnbuckle is fixedly connected between the two second sliders in the same third chute.

[0012] As a further solution of the present invention, fourth installation plates are fixedly connected to both sides of the upper die. Driving motors are fixedly connected to the upper ends of the fourth installation plates. A first gear is fixedly connected to the upper end of the output shaft of the driving motor. First racks are fixedly connected to both sides of the lower end of the first installation plate located on both sides of the upper die. The first gears are respectively meshed with the first racks on the same side.

[0013] As a further solution of the present invention, second racks are vertically and fixedly connected to both sides of the lower die. The second racks are vertically slidably connected to the side wall of the upper die. Second gears are respectively rotatably connected to the left and right sides of the upper die. The second gears are internally provided with driving units for driving the second gears to rotate. The second gears are respectively meshed with the second racks on the same side.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. The present invention applies extrusion pressure to the upper die and the lower die through the gravity of the counterweight, using the stably existing gravity to replace the hydraulic pressure artificially generated by the kinetic energy system. The former is relatively more stable and reliable, and basically does not generate fluctuations during use. At the same time, during the troubleshooting process, it is not necessary to carry out relatively complicated disassembly and repair, which enhances the stability of the entire equipment system. And since the extrusion pressure of the present invention is mainly applied through mechanical mechanisms, the present invention also has stronger fault resistance compared to traditional hydraulic systems. Finally, during the process of applying extrusion pressure in the present invention, only one lifting action on the counterweight is required during the entire mold closing process, and during the foaming process after mold closing, the equipment no longer needs to be actively driven, so that the present invention no longer needs to actively do work, significantly shortening the working time of the driving parts of the present invention and effectively improving the working life of the driving parts.

[0016] 2. The present invention utilizes a pulley block structure to apply the combined force of multiple steel cables to the lower end of the second mounting plate, thereby extruding the lower die, enabling the required weight and volume of the counterweight to be effectively reduced, and further reducing the difficulty of equipment production and installation.

[0017] 3. The present invention utilizes a load-bearing block to balance the weight of the counterweight, so that during the process of driving the counterweight by the equipment, the power required by the driving unit decreases, thereby reducing the equipment complexity and improving the stability and service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 is a front sectional schematic diagram of the overall structure of the present invention;

[0020] Figure 3 is a rear schematic diagram of the overall structure of the present invention;

[0021] Figure 4 is Figure 3 an enlarged schematic diagram of the structure at A in

[0022] Figure 5 is a side sectional schematic diagram of the overall structure of the present invention;

[0023] Figure 6 is Figure 5 an enlarged schematic diagram of the structure at B in

[0024] Figure 7 is Figure 5 an enlarged schematic diagram of the structure at C in

[0025] In the drawings, the list of components represented by each reference numeral is as follows:

[0026] Support plate 12, mounting frame 13, top cover 14, first mounting plate 15, second mounting plate 16, upper mold 17, lower mold 18, counterweight 19, mounting post 21, first pulley 22, second pulley 23, first auxiliary pulley 24, second auxiliary pulley 25, first fixing plate 26, first steering pulley 27, connecting plate 28, second steering pulley 29, steel cable 210, second fixing plate 31, third steering pulley 32, pressure reducing block 41, second elastic telescopic rod 42, balance block 43, first engaging block 44, load-bearing block 45, rope releasing mechanism 46, second engaging block 47, third mounting plate 51, rotating shaft 52, third mounting plate 51, fourth chute 62, second slider 63, third slider 64, turnbuckle 65, fourth mounting plate 71, driving motor 72, first gear 73, first rack 74, second rack 81, second gear 82. Detailed implementation manners

[0027] Please refer to Figure 1-7 , the present invention provides a technical solution: a vertical EVA small foam machine, including an external console and a corresponding control circuit of the console, a support plate 12, a mounting frame 13, a top cover 14, a first mounting plate 15, a second mounting plate 16, an upper mold 17, a lower mold 18, a transmission mechanism and a counterweight 19. The console is arranged on the side of the support plate 12. The mounting frame 13 is fixedly connected to the upper end of the support plate 12. The top cover 14 is fixedly connected to the upper end of the mounting frame 13. The first mounting plate 15 and the second mounting plate 16 are both vertically slidably connected to the inner wall of the mounting frame 13. The first mounting plate 15 is located above the second mounting plate 16. The upper mold 17 is longitudinally slidably connected to the lower end of the first mounting plate 15. The lower mold 18 is vertically slidably connected to the upper mold 17. Components of the transmission mechanism are respectively arranged above the first mounting plate 15 and below the second mounting plate 16. The transmission mechanism is used to make the upper mold 17 and the lower mold 18 extrude each other through the gravity of the counterweight 19 via the second mounting plate 16 and the first mounting plate 15.

[0028] The present invention applies an extrusion force to the upper mold 17 and the lower mold 18 through the gravity of the counterweight 19, uses the stably existing gravity to replace the hydraulic pressure artificially generated by the kinetic energy system. The former is relatively more stable and reliable, and basically does not generate fluctuations during the use process. At the same time, during the fault repair process, it is not necessary to carry out relatively complicated disassembly and repair, which enhances the stability of the entire equipment system. And because the extrusion force of the present invention is mainly applied through a mechanical mechanism, the present invention also has stronger fault resistance compared with the traditional hydraulic system. Finally, during the process of applying the extrusion force in the present invention, only one lifting action on the counterweight 19 is required during the entire mold closing process. During the foaming process after mold closing, the equipment no longer needs to be actively driven, so that the present invention equipment no longer needs to actively do work, significantly shortening the working time of the driving parts of the present invention equipment and effectively improving the working life of the driving parts.

[0029] As a further solution of the present invention, the transmission mechanism includes a mounting column 21 vertically and fixedly connected to the lower end of the second mounting plate 16. The inner wall of the mounting column 21 is rotatably connected with a first pulley 22 and a second pulley 23 in sequence from top to bottom. First auxiliary pulleys 24 are respectively arranged above the left and right sides of the first pulley 22. Second auxiliary pulleys 25 are respectively arranged above the left and right sides of the second pulley 23. First through grooves are respectively formed through the left and right side walls of the mounting frame 13 corresponding to the mounting column 21. First fixing plates 26 are fixedly connected to the front and rear inner walls of the first through grooves. A first steering pulley 27 is rotatably connected to the upper half between the left first fixing plates 26. A connecting plate 28 is fixedly connected to the lower half between the left first fixing plates 26. A second steering pulley 29 is rotatably connected to the lower half between the right first fixing plates 26. A steering mechanism is arranged at the upper end of the first mounting plate 15. The connecting plate 28 is fixedly connected with a steel cable 210. The steel cable 210 passes through the upper end of the left second auxiliary pulley 25 - the lower end of the second pulley 23 - the upper end of the right second auxiliary pulley 25 - the lower right side of the second steering pulley 29 - the upper end of the right first auxiliary pulley 24 - the lower end of the first pulley 22 - the upper end of the left first auxiliary pulley 24 - the lower end of the first steering pulley 27 - the path of the steering mechanism and then is fixedly connected to the upper end of the counterweight 19. The counterweight 19 is vertically slidably connected to the left side wall of the mounting frame 13 and a driving unit is arranged inside the counterweight 19. The driving unit is used to drive the counterweight 19 to perform vertical displacement.

[0030] The present invention utilizes a pulley block structure to apply the resultant force of multiple segments of the steel cable 210 to the lower end of the second mounting plate 16, thereby extruding the lower die 18, so that the required weight and volume of the counterweight 19 can be effectively reduced, and further reducing the difficulty of equipment production and installation.

[0031] As a further solution of the present invention, the steering mechanism includes a second through groove formed in the left side wall of the mounting frame 13. Second fixing plates 31 are fixedly connected to the front and rear inner walls of the second through groove. A third steering pulley 32 is rotatably connected to the upper half between the second fixing plates 31. The steel cable 210 bypasses the upper end of the third steering pulley 32 and is fixedly connected to the upper end of the counterweight 19.

[0032] As a further solution of the present invention, pressure reducing blocks 41 are fixedly connected to the left and right sides of the upper end of the support plate 12 located inside the mounting frame 13. Second elastic telescopic rods 42 are fixedly connected to the upper ends of the pressure reducing blocks 41. A locking mechanism is arranged inside the second elastic telescopic rods 42. The locking mechanism is used to control the length of the second elastic telescopic rods 42 to be fixed. The upper ends of the second elastic telescopic rods are commonly fixedly connected to a balance block 43. A first engaging block 44 is fixedly connected to the upper end of the balance block 43. A load-bearing block 45 is fixedly connected to the lower end of the mounting post 21. A rope releasing mechanism 46 is fixedly connected to the lower end of the load-bearing block 45. A second engaging block 47 is fixedly connected to the lower end of the rope releasing mechanism 46. The first engaging block 44 and the second engaging block 47 can be docked and engaged.

[0033] In the present invention, by using the weights of the load-bearing block 45 and the counterweight block 19, during the process of the device driving the counterweight block 19, the power required by the driving unit decreases, thereby reducing the load on the device and improving the stability and service life of the device.

[0034] As a further solution of the present invention, a third mounting plate 51 is fixedly connected to the lower end of the second mounting plate 16. Rotating shafts 52 are arranged between the third mounting plate 51 and the inside of the mounting frame 13 corresponding to the first auxiliary pulley 24 and the second auxiliary pulley 25. The first auxiliary pulley 24 and the second auxiliary pulley 25 are respectively rotatably connected to the corresponding rotating shafts 52.

[0035] As a further solution of the present invention, third chutes 61 are horizontally penetrated and opened on the front side wall of the mounting frame 13 corresponding to the heights of the first auxiliary pulley 24 and the second auxiliary pulley 25. Fourth chutes 62 are horizontally opened on the front side wall of the third mounting plate 51 corresponding to the heights of the first auxiliary pulley 24 and the second auxiliary pulley 25. Second sliders 63 and third sliders 64 are respectively fixedly connected to the front and rear ends of the rotating shaft 52. The second sliders 63 are respectively horizontally slidably connected to the third chutes 61 at the corresponding heights. The third sliders 64 are respectively horizontally slidably connected to the fourth chutes 62 at the corresponding heights. A turnbuckle 65 is fixedly connected between the two second sliders 63 in the same third chute 61.

[0036] In the present invention, by adjusting the turnbuckle 65, the horizontal positions of the first auxiliary pulley 24 and the second auxiliary pulley 25 are changed, thereby changing the pulling force direction exerted by the steel cable 210 on the first pulley 22 and the second pulley 23, and further changing the magnitude of the extrusion force finally received by the lower die 18, so that the device can adjust the magnitude of the extrusion force according to the actual foaming requirements.

[0037] As a further solution of the present invention, both sides of the upper die 17 are fixedly connected with fourth mounting plates 71. The upper ends of the fourth mounting plates 71 are fixedly connected with drive motors 72. The upper ends of the output shafts of the drive motors 72 are fixedly connected with first gears 73. Both sides of the lower end of the first mounting plate 15 located on both sides of the upper die 17 are fixedly connected with first racks 74. The first gears 73 are respectively meshed with the first racks 74 on the same side.

[0038] As a further solution of the present invention, both sides of the lower die 18 are vertically fixedly connected with second racks 81. The second racks 81 are vertically slidably connected with the side walls of the upper die 17. Both the left and right sides of the upper die 17 are rotatably connected with second gears 82. The second gears 82 are internally provided with drive units for driving the second gears 82 to rotate. The second gears 82 are respectively meshed with the second racks 81 on the same side.

[0039] During operation, taking Figure 1 the equipment is in the initial state of foaming as the description. At this time, the drive unit does not do work on the counterweight 19. Under the action of gravity, the counterweight 19 generates a downward pulling force on the steel cable 210, so that the steel cable 210 has a tension equal to the gravity of the counterweight 19. The steel cable 210 segments on both sides of the first pulley 22 and the second pulley 23 respectively generate pulling forces equal to the gravity of the counterweight 19 on the first pulley 22 and the second pulley 23 along the direction of the steel cable 210. Further, the resultant force of the pulling forces on both sides of the first pulley 22 and the second pulley 23 acts on the mounting column 21 (here, the distance between the second sliders 63 can be changed by adjusting the turnbuckle 65 before using the equipment, so as to change the distance between the first auxiliary pulley 24 and the first pulley 22 and the distance between the second auxiliary pulley 25 and the second pulley 23, and then change the directions of the pulling forces on both sides of the first pulley 22 and the second pulley 23, and then change the magnitude of the resultant force received by the first pulley 22 and the second pulley 23), generating an upward pulling force on the mounting column 21, so that the lower die 18 is subjected to an upward extrusion force;

[0040] After the foaming is completed, the console is used to control the rope releasing mechanism 46 to lower the second engaging block 47, so that the second engaging block 47 engages with the first engaging block 44. Then, the locking mechanism in the second elastic telescopic rod 42 under the weight block 45 is unlocked through the console, enabling the second elastic telescopic rod 42 to freely expand and contract. At this time, the gravity of the weight block 45 acts on the lower end of the mounting column 21, causing the mounting column 21 to tend to move downward. Further, through the pulley group, the steel cable 210 exerts an upward pulling force on the counterweight 19, making the gravity of the counterweight 19 and the weight block 45 cancel each other out. At this time, the driving unit in the counterweight 19 drives the counterweight 19 to move upward, causing the second mounting plate 16 to move downward and no longer extrude the lower mold 18. Then, the first gear 73 is controlled to rotate relative to the first rack 74, causing the upper mold 17 and the lower mold 18 to move backward. Then, the second gear 82 is controlled to rotate relative to the second rack 81, causing the lower mold 18 to move downward relative to the upper mold 17 to complete mold opening;

[0041] After mold opening, the product is taken out, and the preparation work for foaming the upper mold 17 and the lower mold 18 is carried out again. After the preparation work is completed, the first gear 73 and the second gear 82 are driven to re-close the mold and move the upper mold 17 and the lower mold 18 back between the first mounting plate 15 and the second mounting plate 16;

[0042] Then, the driving unit in the counterweight 19 drives the counterweight 19 to move downward, pulling the second mounting plate 16 and the balance block 43 upward until the second mounting plate 16 extrudes the lower mold 18 and the second elastic telescopic rod 42 at the lower end of the balance block 43 is stretched to the limit length. Then, the locking mechanism in the second elastic telescopic rod 42 is locked, making the second elastic telescopic rod 42 unable to expand and contract. Then, the driving unit in the counterweight 19 is turned off, enabling the counterweight 19 to slide freely. Then, the first engaging block 44 and the second engaging block 47 are disengaged from each other, causing the balance block 43 to disengage from the mounting column 21. Under the gravity of the counterweight 19, the second mounting plate 16 re-extrudes the lower mold 18 with a predetermined extrusion force. Finally, the foaming process starts in the mold cavities of the upper mold 17 and the lower mold 18.

Claims

1. A vertical EVA small foaming machine, characterized in that: It includes an externally connected console and its corresponding control circuit, a support plate (12), a mounting frame (13), a top cover (14), a first mounting plate (15), a second mounting plate (16), an upper die (17), a lower die (18), a transmission mechanism, and a counterweight (19). The console is arranged on the side of the support plate (12). The mounting frame (13) is fixedly connected to the upper end of the support plate (12). The top cover (14) is fixedly connected to the upper end of the mounting frame (13). Both the first mounting plate (15) and the second mounting plate (16) are vertically slidably connected to the inner wall of the mounting frame (13). The first mounting plate (15) is located above the second mounting plate (16). The upper die (17) is longitudinally slidably connected to the lower end of the first mounting plate (15). The lower die (18) is vertically slidably connected to the upper die (17). The components of the transmission mechanism are respectively arranged above the first mounting plate (15) and below the second mounting plate (16). The transmission mechanism is used to make the upper die (17) and the lower die (18) extrude each other through the second mounting plate (16) and the first mounting plate (15) by the gravity of the counterweight (19). The transmission mechanism includes a mounting column (21). The mounting column (21) is vertically and fixedly connected to the lower end of the second mounting plate (16). A first pulley (22) and a second pulley (23) are successively rotatably connected to the inner wall of the mounting column (21) from top to bottom. First auxiliary pulleys (24) are respectively arranged above the left and right sides of the first pulley (22). Second auxiliary pulleys (25) are respectively arranged above the left and right sides of the second pulley (23). First through grooves are respectively penetrated through the left and right side walls of the mounting frame (13) corresponding to the mounting column (21). First fixing plates (26) are fixedly connected to the front and rear inner walls of the first through grooves. A first steering pulley (27) is rotatably connected to the upper half between the left first fixing plates (26). A connecting plate (28) is fixedly connected to the lower half between the left first fixing plates (26). A second steering pulley (29) is rotatably connected to the lower half between the right first fixing plates (26). A steering mechanism is arranged at the upper end of the first mounting plate (15). The connecting plate (28) is fixedly connected with a steel cable (210). The steel cable (210) passes through the upper end of the left second auxiliary pulley (25) - the lower end of the second pulley (23) - the upper end of the right second auxiliary pulley (25) - the lower right side of the second steering pulley (29) - the upper end of the right first auxiliary pulley (24) - the lower end of the first pulley (22) - the upper end of the left first auxiliary pulley (24) - the lower end of the first steering pulley (27) - the path of the steering mechanism and is fixedly connected to the upper end of the counterweight (19). The counterweight (19) is vertically slidably connected to the left side wall of the mounting frame (13), and a driving unit is built in the counterweight (19). The driving unit is used to drive the counterweight (19) to perform vertical displacement.

2. The vertical EVA small foaming machine according to claim 1, characterized in that: The steering mechanism comprises a second through slot formed on a left side wall of the mounting frame (13); the front and rear inner walls of the second through slot are both fixedly connected to second fixing plates (31); the upper half of the second fixing plates (31) is rotatably connected to a third steering pulley (32); the steel cable (210) passes over the upper end of the third steering pulley (32) and is fixedly connected to the upper end of the counterweight (19).

3. The column-type EVA small foaming machine according to claim 2, wherein: The upper end of the support plate (12) is located in the installation frame (13), and both left and right sides thereof are fixedly connected to pressure relief blocks (41); the upper ends of the pressure relief blocks (41) are fixedly connected to second elastic telescopic rods (42); a locking mechanism is arranged in the second elastic telescopic rod (42); the locking mechanism is used to control the length of the second elastic telescopic rod (42); the upper ends of the second elastic telescopic rods are commonly fixedly connected to a balancing block (43); the upper end of the balancing block (43) is fixedly connected to a first engaging block (44); the lower end of the installation column (21) is fixedly connected to a load-bearing block (45); the lower end of the load-bearing block (45) is fixedly connected to a rope-releasing mechanism (46); the lower end of the rope-releasing mechanism (46) is fixedly connected to a second engaging block (47); the first engaging block (44) and the second engaging block (47) can be butted and engaged.

4. The column type EVA small foaming machine according to claim 3, wherein: The lower end of the second mounting plate (16) is fixedly connected to a third mounting plate (51); a rotation shaft (52) is provided between the third mounting plate (51) and the mounting frame (13) at locations corresponding to the first secondary pulley (24) and the second secondary pulley (25); the first secondary pulley (24) and the second secondary pulley (25) are respectively rotationally connected to the corresponding rotation shaft (52).

5. The column type EVA small foaming machine according to claim 4, characterized in that: A third slide groove (61) is transversely penetrated through the front side wall of the installation frame (13) at a height corresponding to the first secondary pulley (24) and the second secondary pulley (25); a fourth slide groove (62) is transversely opened on the front side wall of the third installation plate (51) at a height corresponding to the first secondary pulley (24) and the second secondary pulley (25); a second slider (63) and a third slider (64) are fixedly connected at the front and rear ends of the rotating shaft (52); the second slider (63) is transversely slidably connected to the third slide groove (61) at a corresponding height; the third slider (64) is transversely slidably connected to the fourth slide groove (62) at a corresponding height; and a basket bolt (65) is fixedly connected between two second sliders (63) in the same third slide groove (61).

6. The column type EVA small foaming machine according to claim 4, characterized in that: The upper mold (17) is fixedly connected to a fourth mounting plate (71) on both sides, the upper end of the fourth mounting plate (71) is fixedly connected to a drive motor (72), the upper end of the output shaft of the drive motor (72) is fixedly connected to a first gear (73), the lower end of the first mounting plate (15) is located on both sides of the upper mold (17) and is fixedly connected to a first rack (74), and the first gear (73) is respectively meshed with the first rack (74) on the same side.

7. The vertical EVA small foaming machine according to claim 6, characterized in that: On both sides of the lower die (18), second racks (81) are vertically and fixedly connected. The second racks (81) are vertically and slidably connected to the side walls of the upper die (17). On the left and right sides of the upper die (17), second gears (82) are rotatably connected. A driving unit is built in the second gears (82) for driving the second gears (82) to rotate. The second gears (82) are respectively meshed with the second racks (81) on the same side.

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