Method for manufacturing a dual-density sole

Abstract

The present invention relates to the technical field of shoe manufacturing, specifically to a manufacturing method for a double-density sole, including molding, and also including demolding and trimming. Among them, the trimming step is before the demolding step. It also includes: a base and a lower mold and an upper mold arranged on the upper side of the base for manufacturing the sole. A cutting mechanism is provided inside the lower mold, movable grooves are opened on both inner sides of the lower mold, and a pushing mechanism is arranged inside the movable grooves. Two driving rods are fixedly arranged on one side of the upper mold, and the driving rods can automatically make the pushing mechanism work when the mold is opened. By arranging a blade inside the lower mold, the present invention can cooperate with the pressing plate to automatically cut the burrs around the sole when the mold is opened, so that it can be quickly put into the next mold, and it also avoids the need to trim again after demolding, reducing the workload of the staff and improving work efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of shoe manufacturing, and particularly to a method for manufacturing a dual-density sole. Background Art

[0002] Currently, for the dual-density soles used in shoe manufacturing, most are made by first bonding cardboard of various materials with glue, then bonding a steel core with a suitable arc to the cardboard to form the midsole, and then further processing it. Foaming materials of different thicknesses and sizes are pasted inside the front end of the midsole to meet the requirements of the hardness and arc at the sole of the foot. Finally, it is manually trimmed and polished into the required shape and size. Two molds are required for the sole manufacturing process. After the bottom layer of the sole is made using the first mold, it is placed inside the second mold for making the second layer. However, after a layer of the sole is made, it is taken out and the surrounding burrs are cut off so that it can be better placed inside the second mold and fit with the second mold. Traditional molds are not convenient for cutting off the burrs around the sole during the manufacturing process. Secondary cutting is required after taking out the made lower-layer sole, and the burrs around the sole cannot be automatically cut during demolding, which makes it difficult for the staff to quickly place the lower-layer sole inside the second mold for the next step of manufacturing. The operation is troublesome and the use effect is poor. Summary of the Invention

[0003] Technical Problems to be Solved

[0004] In view of the above-mentioned drawbacks of the prior art, the present invention provides a method for manufacturing a dual-density sole, which can effectively solve the problem in the prior art that the burrs around the sole cannot be automatically cut during demolding.

[0005] Technical Solutions

[0006] To achieve the above object, the present invention is realized through the following technical solutions:

[0007] The present invention provides a method for manufacturing a dual-density sole, including molding, and also including demolding and trimming. Among them, the trimming step is before the demolding step.

[0008] The present invention provides a device for manufacturing a dual-density sole, including: a base and a lower mold and an upper mold provided on the upper side of the base for manufacturing the sole,

[0009] A cutting mechanism is provided inside the lower mold, and the cutting mechanism can automatically cut off the burrs around the sole in cooperation with the upper mold when the mold is opened;

[0010] Activity grooves are formed inside both sides of the lower mold. A pushing mechanism is provided inside the activity grooves. The pushing mechanism can move up and down inside the activity grooves. The pushing mechanism is used to push the cutting mechanism upward. The lower mold is slidably connected to the base. The lower mold can move horizontally along the direction of the base. The lower mold is elastically connected to one end of the base through a spring;

[0011] Two driving rods are fixedly provided at the lower end of the upper mold. The driving rods can automatically make the pushing mechanism work when the mold is opened. The upper mold is slidably connected to the lower mold. The upper mold can move up and down relative to the lower mold.

[0012] Further, the cutting mechanism includes a blade slidably connected inside the lower mold. One end of the blade is elastically connected to the pushing mechanism through a spring.

[0013] Further, the pushing mechanism includes a sleeve rod. The sleeve rod can slide relative to the blade. A movable rod is slidably connected inside one side of the sleeve rod. A bayonet is formed on one side of the driving rod. One side of the movable rod is clamped and matched with the inside of the bayonet. One side of the movable rod is of an inclined structure. One side of the lower end of the driving rod is in pressing contact with the inclined surface on the movable rod.

[0014] Further, a pressing rod is fixedly installed at the upper end inside the activity groove. An inclined groove is formed at one end of the movable rod. The lower end of the pressing rod can penetrate through the upper end of the sleeve rod and extend into its interior and be in pressing contact with the inner wall of the inclined groove. The upper end of the sleeve rod is elastically connected to the upper end of the activity groove through a spring.

[0015] Further, the upper mold includes a moving plate. A pressing plate is elastically connected to the lower end of the moving plate. The blade and the pressing plate cooperate to cut the burrs around the sole.

[0016] Further, a telescopic rod penetrates through one side of the inside of the activity groove. Thrust rods penetrate through both sides of the lower mold. The lower end of the telescopic rod is fixedly connected to the upper end of one side of the thrust rod. The thrust rod is slidably connected to the lower mold. The upper end of the thrust rod is fixedly connected to a top plate. The top plate is used to push the sole upward.

[0017] Further, a push plate is slidably connected to one side of the upper end of the lower mold. A transmission rod penetrates through one end of the lower mold. A threaded groove is formed on the outer wall of the transmission rod. One end of the transmission rod is fixedly connected to a gear. A rack is slidably connected to one end of the lower mold. The rack is in meshing transmission with the gear. One side of the rack is elastically connected to one side of the lower mold through a spring. The rack is fixedly connected to one end of the upper mold through a pull rope.

[0018] Furthermore, a heat conducting block is provided at a position on the lower die corresponding to the lower side of the blade. A heat insulation layer is provided on one side inside the lower die at a position corresponding to the outer sides of the blade and the heat conducting block. A plurality of heat conducting rods are fixedly connected to the outer wall of the heat conducting block. One end of some of the heat conducting rods penetrates through the lower die and is located in the model groove, and the other end of some of the heat conducting rods is slidably connected to the blade. A plurality of pressing rods are rotatably connected to the upper end of the blade, and one end of each pressing rod is elastically connected to the blade.

[0019] Furthermore, a plurality of convex blocks are fixedly connected to one end of the base, and the protruding portion at one end of the moving plate is in sliding contact with the outer wall of the convex block.

[0020] Advantages

[0021] The technical solution provided by the present invention has the following advantages compared with the known public technologies:

[0022] 1. By providing a blade inside the lower die, the present invention can automatically cut the burrs around the sole when the mold is opened in cooperation with the pressing plate, so that it can be quickly put into the next mold, and it also avoids the need for re-trimming after demolding, reducing the workload of the staff and improving work efficiency.

[0023] 2. By providing a ejector rod under the lower die, the sole can be extruded when the upper die rises as a whole, so that the sole can be ejected, and the sole can be automatically demolded. The operation is simple and convenient, avoiding the need for re-demolding after the mold is opened.

[0024] 3. By providing a push plate on the lower die, it can automatically move under the action of a set of pull ropes, racks and gears when the mold is opened, so that it can automatically push the sole after the sole is ejected, enabling the sole to fall off the lower die, which is convenient for blanking and easy to use. And when the mold is closed, the rack can return to its initial position.

[0025] 4. By providing a plurality of convex blocks on the base, the lower die can be driven to sway left and right when the moving plate descends and ascends, so that the heated raw material can be kept uniform in the lower die after the heated raw material is injected, and at the same time, the sole can be more easily separated from the inner wall of the lower die during demolding, facilitating the top plate and the ejector rod to eject it.

[0026] 5. By providing a plurality of pressing rods on the blade, the pressing rods can extrude the burrs during the rising process of the blade, so that the burrs are extruded to both sides, pulling the burrs, making it easier for the blade to cut off the burrs during cutting and cleaning them more thoroughly. At the same time, by providing a heat conducting block and heat conducting rods, the heat in the heated raw material can be conducted to the blade, and the blade is thermally insulated under the action of the heat insulation layer 27, so that it is easier to cut the burrs. Description of the Drawings

[0027] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0028] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0029] Figure 2 It is a schematic diagram of the structure of the upper mold part of the present invention;

[0030] Figure 3 It is a schematic diagram of the structure of the lower mold and the base part of the present invention;

[0031] Figure 4 It is a schematic diagram of the inside of the movable groove of the present invention;

[0032] Figure 5 It is a schematic diagram of the structure of the sleeve rod, movable rod, driving rod and extrusion rod parts of the present invention;

[0033] Figure 6 It is a schematic diagram of the disassembled structure of the gear, rack, transmission rod and push plate parts of the present invention;

[0034] Figure 7 It is a schematic diagram of the structure of the heat insulation layer part of the present invention;

[0035] Figure 8 It is a schematic diagram of the disassembled structure of the heat conduction block and the blade parts of the present invention;

[0036] Figure 9 It is a schematic diagram of the structure of the connection part between the base and the lower mold of the present invention;

[0037] The reference numerals in the figure respectively represent: 1 - base; 2 - lower mold; 3 - upper mold; 4 - movable groove; 5 - driving rod; 6 - blade; 7 - sleeve rod; 8 - movable rod; 9 - bayonet; 10 - extrusion rod; 11 - inclined groove; 12 - moving plate; 13 - pressing plate; 14 - telescopic rod; 15 - ejector rod; 16 - top plate; 17 - push plate; 18 - transmission rod; 19 - thread groove; 20 - gear; 21 - rack; 22 - pull rope; 23 - heat conduction block; 24 - heat conduction rod; 25 - pushing rod; 26 - convex block; 27 - heat insulation layer. Specific embodiments

[0038] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0039] The following further describes the present invention with reference to embodiments.

[0040] Embodiment:

[0041] According to the attached Figure 1 - attached Figure 9 As shown, a method for manufacturing a dual-density sole includes molding, and also includes demolding and trimming. Among them, the trimming step is before the demolding step.

[0042] An apparatus for manufacturing a dual-density sole includes: a base 1, and a lower mold 2 and an upper mold 3 disposed on the upper side of the base 1 for manufacturing the sole.

[0043] A cutting mechanism is provided inside the lower mold 2. The cutting mechanism can automatically cut the burrs around the sole in cooperation with the upper mold 3 when the mold is opened.

[0044] Activity grooves 4 are respectively opened inside both sides of the lower mold 2. A pushing mechanism is provided inside the activity grooves 4. The pushing mechanism can move up and down inside the activity grooves 4. The pushing mechanism is used to push the cutting mechanism upward. The lower mold 2 is slidably connected to the base 1. The lower mold 2 can move horizontally along the direction of the base 1. The lower mold 2 is elastically connected to one end of the base 1 through a spring. When the pushing mechanism rises, the cutting mechanism can be lifted, so that the burrs around the sole can be cut off.

[0045] Two driving rods 5 are fixedly provided on one side of the upper mold 3. The driving rods 5 can automatically make the pushing mechanism work when the mold is opened. The upper mold 3 is slidably connected to one side of the lower mold 2. The upper mold 3 can move up and down relative to the lower mold 2. When the driving rods 5 rise, the pushing mechanism can be lifted.

[0046] Specifically, the cutting mechanism includes a blade 6 slidably connected inside the lower mold 2. One end of the blade 6 is elastically connected to the pushing mechanism through a spring. The cutting mechanism can move up and down inside the lower mold 2.

[0047] In addition, the driving mechanism includes a sleeve rod 7. The sleeve rod 7 can slide relative to the blade 6. An active rod 8 is slidably connected inside one side of the sleeve rod 7. A bayonet 9 is provided on one side of the driving rod 5. One side of the active rod 8 is clamped and fitted inside the bayonet 9. One side of the active rod 8 is of an inclined structure. One side at the lower end of the driving rod 5 is in pressing contact with the inclined surface on the active rod 8. When the driving rod 5 moves downward from the upper side of the active rod 8, it can press the inclined surface on the active rod 8, so that the active rod 8 moves along the direction of the sleeve rod 7.

[0048] In addition, a pressing rod 10 is fixedly installed at the upper end inside the moving groove 4. An inclined groove 11 is provided at one end of the active rod 8. The lower end of the pressing rod 10 can penetrate through the upper end of the sleeve rod 7 and extend into its interior and be in pressing contact with the inner wall of the inclined groove 11. The upper end of the sleeve rod 7 is elastically connected to the upper end of the moving groove 4 through a spring. When the pressing rod 10 comes into contact with the inner wall of the inclined groove 11, as the active rod 8 continues to move upward, the active rod 8 can be contracted into the sleeve rod 7. And when the active rod 8 is at the uppermost side, one end of the active rod 8 can be disengaged from the bayonet 9, and under the action of the spring, the sleeve rod 7 and the active rod 8 are at the lowermost side.

[0049] On the basis of the above solution, the upper mold 3 includes a moving plate 12. A pressing plate 13 is elastically connected to the lower end of the moving plate 12. The blade 6 and the pressing plate 13 cooperate to cut the burrs around the sole. When the blade 6 rises, the pressing plate 13 can press the upper end of the sole. At this time, the blade 6 and the pressing plate 13 cooperate to cut off the burrs around the sole.

[0050] On the basis of the above solution, a telescopic rod 14 is provided through one side inside the moving groove 4. Push rods 15 are provided through both sides of the lower mold 2. The lower end of the telescopic rod 14 is fixedly connected to the upper end of one side of the push rod 15. The push rod 15 is slidably connected to the lower mold 2. The upper end of the push rod 15 is fixedly connected to a top plate 16. The top plate 16 is used to push the sole upward. After the sleeve rod 7 rises a certain distance and the blade 6 cuts off the burrs, the telescopic rod 14 can pull the push rod 15 upward. When the push rod 15 rises, the top plate 16 can rise. After the top plate 16 rises, it can eject the sole from the mold.

[0051] On the basis of the above solution, a push plate 17 is slidably connected to one side of the upper end of the lower mold 2. A transmission rod 18 penetrates through one end of the lower mold 2. A threaded groove 19 is formed on the outer wall of the transmission rod 18. One end of the transmission rod 18 is fixedly connected to a gear 20. A rack 21 is slidably connected to one end of the lower mold 2. The rack 21 is meshed with the gear 20 for transmission. One side of the rack 21 is elastically connected to one side of the lower mold 2 through a spring. The rack 21 is fixedly connected to one end of the upper mold 3 through a pull rope 22. After the upper mold 3 rises to a certain position and continues to rise, it can pull the rack 21 through the pull rope 22, so that the rack 21 moves upward on the lower mold 2. At this time, the rack 21 can be meshed with the gear 20 to make the gear 20 rotate. The rotation of the gear 20 can make the transmission rod 18 rotate. The rotation of the transmission rod 18 can make the push plate 17 move under the action of the threaded groove 19. The movement of the push plate 17 can push away the ejected sole. And when the upper mold 3 descends, under the action of the spring at one end of the rack 21, the rack 21 can descend, so that the gear 20 rotates in the reverse direction. Furthermore, under the action of the transmission rod 18, the push plate 17 can move to the initial position.

[0052] On the basis of the above solution, a heat conducting block 23 is provided at a position on the lower side of the lower mold 2 relative to the blade 6. A heat insulating layer 27 is provided on one side inside the lower mold 2 at a position relative to the outer sides of the blade 6 and the heat conducting block 23. A plurality of heat conducting rods 24 are fixedly connected to the outer wall of the heat conducting block 23. One end of some of the heat conducting rods 24 penetrates through the lower mold 2 and is located in the model groove. The other part of the heat conducting rods 24 is slidably connected to the blade 6. A plurality of push rods 25 are rotatably connected to the upper end of the blade 6. One end of the push rod 25 is elastically connected to the blade 6. After the heated raw material is injected into the lower mold 2, the heat in the raw material can be conducted to the blade 6 under the action of the heat conducting rods 24. And under the action of the heat insulating layer 27, when the temperature of the raw material drops and forms, there is still heat on the blade 6. At this time, when contacting the burr, it can help cutting, making it easier for the blade 6 to cut off the burr.

[0053] On the basis of the above solution, a plurality of convex blocks 26 are fixedly connected to one end of the base 1. The protruding part at one end of the moving plate 12 is in sliding contact with the outer wall of the convex block 26. By providing the convex blocks 26, when the moving plate 12 moves, the protruding part on the moving plate 12 will be in pressing contact with the convex blocks 26, so that the moving plate 12 can move horizontally with the lower mold 2 below it. Thus, under the action of the spring connecting the lower mold 2 and the base 1, the lower mold 2 sways left and right.

[0054] When the device is working, the staff pour the heated raw materials into the inner part of the lower mold 2, and then push the upper mold 3 downward. At this time, the downward movement of the moving plate 12 can cause the pressing plate 13 on its lower side to descend. And when the moving plate 12 descends, the convex part on the moving plate 12 will be in pressing contact with the convex block 26, so that the moving plate 12 can move horizontally with the lower mold 2 on its lower side. And the spring that connects the lower mold 2 and the base 1 can cause the lower mold 2 to reset. Thus, during the descent of the upper mold 3, the lower mold 2 can sway from side to side. The side-to-side swaying of the lower mold 2 can cause the raw materials inside it to be swayed to different positions, so that they can be evenly distributed inside the mold. Among them, during the descent of the moving plate 12, the driving rod 5 can be caused to descend. When the driving rod 5 descends, it can squeeze the inclined surface on one side of the movable rod 8, causing the movable rod 8 to contract. And when the driving rod 5 is at the lowest side, under the action of the spring, one end of the movable rod 8 can be inserted into the bayonet 9 on the driving rod 5. After that, after the production is completed, the moving plate 12 is pulled to make it rise. At this time, under the action of the spring, the pressing plate 13 can still be in close contact with the upper end of the upper mold 3 when the moving plate 12 moves a certain distance. At this time, the driving rod 5 can drive the sleeve rod 7 to rise through the movable rod 8. During the rising process of the sleeve rod 7, the blade 6 can be caused to rise through the spring. During the rising process of the blade 6, several push rods 25 on its outer side can first contact the lower end of the burr. Then, when continuing to rise, under the action of the pressing plate 13, the push rods 25 can rotate outward. When the push rods 25 rotate, they can pull the burr, so that it can be easier when the blade 6 cuts. Thus, it can cooperate with the pressing plate 13 to cut the burrs around the sole. As the moving plate 12 continues to rise, the driving rod 5 can cause the movable rod 8 and the sleeve rod 7 to continue to rise. Then, the pressing plate 13 can be separated from the upper side of the upper mold 3. And as the sleeve rod 7 continues to rise, it can squeeze the spring elastically connected to the blade 6. And one side of the blade 6 will be blocked by the inner wall of the movable groove 4. And at this time, the telescopic rod 14 extends to the longest distance. Then, continue to move so that the ejector rod 15 can move upward. The upward movement of the ejector rod 15 can cause the top plate 16 to move upward. When the top plate 16 moves upward, it can eject the sole from the lower mold 2. During this process, when the moving plate 12 rises and contacts the convex block 26, the upper mold 3 and the lower mold 2 vibrate, so that the periphery of the sole can be separated from the inner wall of the lower mold 2 under the action of inertia and the elasticity of the sole itself, and then it is convenient to eject the sole. Among them, after the moving plate 12 rises to a certain position and then continues to rise, it can pull the pull rope 22. After the pull rope 22 is pulled, it can drive the rack 21 to move upward. When the rack 21 moves upward, it can engage with the gear 20, causing the gear 20 to rotate. The rotation of the gear 20 can cause the transmission rod 18 to rotate. The rotation of the transmission rod 18 can cause the push plate 17 to move under the action of the thread groove 19. The movement of the push plate 17 can push away the ejected sole. Among them, when the moving plate 12 is at the uppermost side and the sleeve rod 7 and the movable rod 8 are at the uppermost side, the movable rod 8 can be separated from the bayonet 9,At this time, under the action of the spring that elastically connects the sleeve rod 7 to the inner wall of the movable groove 4, the sleeve rod 7 and the movable rod 8 can be lowered, thereby causing the telescopic rod 14 to lower. After the telescopic rod is lowered, the ejector rod 15 can be lowered, and the top plate 16 can be moved to the initial position. When the moving plate 12 is lowered during the next use, under the action of the spring, the rack 21 can be reset, and the gear 20 and the transmission rod 18 can be rotated so that the push plate 17 is moved to the initial position, facilitating the next pushing of the sole and the flash from the lower mold 2.

[0055] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the various embodiments of the present invention.

Claims

1. Equipment for manufacturing double-density soles, characterized in that, Including: A base (1), a lower mold (2) for manufacturing a shoe sole disposed on the upper side of the base (1), and an upper mold (3). A cutting mechanism is provided inside the lower mold (2), and the cutting mechanism can cooperate with the upper mold (3) to automatically cut off the burrs around the shoe sole when the mold is opened. Activity grooves (4) are respectively formed inside both sides of the lower mold (2). A pushing mechanism is provided inside the activity grooves (4), and the pushing mechanism can move up and down inside the activity grooves (4). The pushing mechanism is used to push the cutting mechanism to move upward. The lower mold (2) is slidably connected to the base (1), and the lower mold (2) can move horizontally along the direction of the base (1). The lower mold (2) is elastically connected to one end of the base (1) through a spring. Two driving rods (5) are fixedly provided at the lower end of the upper mold (3). The driving rods (5) can automatically make the pushing mechanism work when the mold is opened. The upper mold (3) is slidably connected to the lower mold (2), and the upper mold (3) can move up and down relative to the lower mold (2).

2. The device for manufacturing a dual-density sole according to claim 1, characterized in that, The cutting mechanism includes a blade (6) slidably connected inside the lower mold (2). One end of the blade (6) is elastically connected to the pushing mechanism through a spring.

3. The apparatus for manufacturing a dual-density sole according to claim 2, wherein, The pushing mechanism includes a sleeve rod (7). The sleeve rod (7) can slide relative to the blade (6). A movable rod (8) is slidably connected inside one side of the sleeve rod (7). A bayonet (9) is formed on one side of the driving rod (5). One side of the movable rod (8) is snap-fitted with the inside of the bayonet (9). One side of the movable rod (8) is of an inclined structure, and one side at the lower end of the driving rod (5) is in pressing contact with the inclined surface on the movable rod (8).

4. The device for manufacturing a dual-density sole according to claim 3, characterized in that, An extrusion rod (10) is fixedly installed at the upper end inside the activity groove (4). An inclined groove (11) is formed at one end of the movable rod (8). The lower end of the extrusion rod (10) can penetrate through the upper end of the sleeve rod (7) and extend into its inside and be in pressing contact with the inner wall of the inclined groove (11). The upper end of the sleeve rod (7) is elastically connected to the upper end of the activity groove (4) through a spring.

5. The device for manufacturing a dual-density sole according to claim 2, characterized in that, The upper mold (3) includes a moving plate (12). A pressing plate (13) is elastically connected to the lower end of the moving plate (12). The blade (6) and the pressing plate (13) cooperate to cut the burrs around the shoe sole.

6. The apparatus for manufacturing a dual-density sole according to claim 5, wherein, A telescopic rod (14) penetrates through one side inside the activity groove (4). Thrust rods (15) penetrate through both sides of the lower mold (2). The lower end of the telescopic rod (14) is fixedly connected to the upper end of one side of the thrust rod (15). The thrust rod (15) is slidably connected to the lower mold (2). The upper end of the thrust rod (15) is fixedly connected to a top plate (16). The top plate (16) is used to push the shoe sole to rise.

7. The apparatus for manufacturing a dual-density sole according to claim 6, wherein, One side of the upper end of the lower mold (2) is slidably connected with a push plate (17). One end of the lower mold (2) is provided with a transmission rod (18) passing through. A threaded groove (19) is formed on the outer wall of the transmission rod (18). One end of the transmission rod (18) is fixedly connected with a gear (20). One end of the lower mold (2) is slidably connected with a rack (21). The rack (21) is in meshing transmission with the gear (20). One side of the rack (21) is elastically connected with one side of the lower mold (2) through a spring. The rack (21) is fixedly connected with one end of the upper mold (3) through a pull rope (22).

8. The apparatus for manufacturing a dual-density sole according to claim 1, characterized in that, A heat conducting block (23) is arranged at a position below the lower mold (2) relative to the lower side of the blade (6). A heat insulating layer (27) is arranged at a position inside one side of the lower mold (2) relative to the outer sides of the blade (6) and the heat conducting block (23). A plurality of heat conducting rods (24) are fixedly connected to the outer wall of the heat conducting block (23). One end of some of the heat conducting rods (24) penetrates through the lower mold (2) and is located in the model groove. The other part of the heat conducting rods (24) is slidably connected with the blade (6). A plurality of push rods (25) are rotatably connected to the upper end of the blade (6). One end of the push rod (25) is elastically connected with the blade (6).

9. The apparatus for manufacturing a dual-density sole according to claim 6, wherein, A plurality of convex blocks (26) are fixedly connected to one end of the base (1). The protruding part at one end of the moving plate (12) is in sliding contact with the outer wall of the convex block (26).

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