Sole forming mold

Abstract

The invention discloses a shoe sole forming mold, and relates to the technical field of forming molds, the shoe sole forming mold comprises a lower fixing plate and an upper fixing plate, the top of the lower fixing plate is fixedly connected with a lower mold base, a lower mold is fixedly connected in the lower mold base, the bottom of the upper fixing plate is fixedly connected with an upper mold base, and an upper mold is fixedly connected in the upper mold base; a mold cavity is formed between the upper mold and the lower mold, a hydraulic guide telescopic rod assembly is installed between the lower fixing plate and the upper fixing plate, and the hydraulic guide telescopic rod assembly is used for mold splitting; the device further comprises a movable clamping part, and the movable clamping part comprises a moving unit and a clamping unit which are connected with each other. The device is reasonable in structure, does not need manual taking, saves time and labor, avoids scalding caused by manual shoe sole taking, does not need to wait for the complete cooling time of the formed shoe sole, realizes the working continuity of the forming mold, and improves the shoe sole production speed.

Description

Technical Field

[0001] This invention relates to the field of molding die technology, and in particular to a shoe sole molding die. Background Technology

[0002] Rubber soles are shoe soles made of rubber. Rubber sole materials can be broadly divided into natural rubber and synthetic rubber.

[0003] Injection molding is a method of shaping industrial products. Products are typically made using rubber injection molding and plastic injection molding. Injection molding can be divided into injection molding compression molding and die casting. An injection molding machine (or simply injection molding machine) is the main molding equipment used to make various shapes of plastic products from thermoplastic or thermosetting materials using plastic molds. Injection molding is achieved through an injection molding machine and molds.

[0004] Existing shoe sole forming molds require the sole to cool down after forming before it can be manually removed from the mold. This process is time-consuming and labor-intensive. Furthermore, waiting for the sole to cool down reduces the continuity of mold operation and the production speed of the sole. In addition, manually removing the sole before it has fully cooled down can easily cause burns to the operator. Therefore, this application provides a shoe sole forming mold to meet the requirements. Summary of the Invention

[0005] The purpose of this application is to provide a shoe sole forming mold that does not require manual removal, saving time and effort, avoiding burns caused by manual removal of shoe soles, eliminating the need to wait for the formed shoe sole to cool completely, achieving continuous operation of the forming mold, and improving the shoe sole production speed.

[0006] To achieve the above objectives, this application provides the following technical solution: a shoe sole forming mold, comprising a lower fixed plate and an upper fixed plate, wherein a lower mold base is fixedly connected to the top of the lower fixed plate, and a lower mold is fixedly connected inside the lower mold base; an upper mold base is fixedly connected to the bottom of the upper fixed plate, and an upper mold is fixedly connected inside the upper mold base; a mold cavity is formed between the upper mold and the lower mold; a hydraulic guide telescopic rod assembly is installed between the lower fixed plate and the upper fixed plate, the hydraulic guide telescopic rod assembly being used for mold separation; and further comprising a movable clamping part, wherein the movable clamping part comprises a movable unit and a clamping unit connected to each other, the clamping unit being used to clamp the shoe sole formed inside the mold cavity, and the movable unit being used to move the formed shoe sole out of the forming mold.

[0007] Preferably, the moving unit includes a pair of mounting columns fixedly connected to one side wall of the lower mold base. One end of the pair of mounting columns is fixedly connected to the same fixing frame. An actuation telescopic rod assembly is fixedly connected to one side wall of the fixing frame. The telescopic end of the actuation telescopic rod assembly is fixedly connected to a fixing seat. A pair of sliding grooves are provided on the top of the fixing frame. A pair of slide rails are fixedly connected to one end of the fixing seat. The pair of slide rails are slidably connected in the pair of sliding grooves. The clamping unit is connected to the fixing seat.

[0008] Preferably, the clamping unit includes a servo motor fixedly connected to one side of the fixed base. A driving helical gear is fixedly sleeved on the output end of the servo motor. A driven helical gear meshes with one side of the driving helical gear. A pair of lead screw frames are fixedly connected to one side of the fixed base. The same bidirectional anti-helical lead screw is rotatably connected to the pair of lead screw frames. The driven helical gear is fixedly sleeved on the bidirectional anti-helical lead screw. Threaded tubes are threaded onto the threads at both ends of the bidirectional anti-helical lead screw. A first limiting clamp and a second limiting clamp are fixedly connected to the side walls of the pair of threaded tubes, respectively. Guide rails are fixedly connected to the side walls of the pair of threaded tubes. A guide groove is opened on one side of the fixed base. The pair of guide rails are slidably connected in the guide groove. The first limiting clamp and the second limiting clamp are located on both sides of the mold cavity.

[0009] Preferably, one end of the first limiting clip and the second limiting clip are both arc-shaped structures, and the pair of arc-shaped structures are respectively adapted to the arc shapes at both ends of the formed shoe sole.

[0010] Preferably, the bottom of the upper mold is provided with a pair of placement slots, the first limiting clamp and the second limiting clamp are respectively located in the pair of placement slots, the bottom of the upper mold is provided with slots around all four sides, and the top of the lower mold is fixedly connected with blocks around all four sides, with the four blocks respectively located in the four slots.

[0011] Preferably, a protective housing is provided on one side of the fixing base, and a clearance groove is provided on one side of the protective housing. The first limiting clamp and the second limiting clamp both pass through the clearance groove. The length of the clearance groove is greater than the length of the maximum relative expansion displacement of the first limiting clamp and the second limiting clamp. A mounting hole is provided on one side of the protective housing, and a threaded groove is provided on the fixing base at a position corresponding to the mounting hole. A fixing bolt is threadedly connected through the mounting hole and the threaded groove.

[0012] Preferably, both the lower mold base and the lower mold are provided with interconnected cooling circulation holes, which are used to connect cooling water for cooling the molded shoe sole inside the mold cavity on the lower mold. Both the lower mold base and the lower mold are provided with interconnected injection holes, which are connected to the mold cavity on the lower mold.

[0013] Preferably, the top of the lower fixing plate is fixedly connected to a plurality of fixing columns, the top ends of the plurality of fixing columns are fixedly connected to the bottom of the lower mold base, and the plurality of fixing columns are used to support the lower mold base.

[0014] Preferably, a plurality of guide posts are fixedly connected to the top of the lower fixed plate, and a plurality of guide sliding holes are opened at the bottom of the upper mold base. One end of each of the plurality of guide posts extends into the plurality of guide sliding holes. Each of the plurality of guide posts is fitted with a shock-absorbing spring. The bottom end of each of the plurality of shock-absorbing springs is fixedly connected to the top of the lower fixed plate, and the top end of each of the plurality of shock-absorbing springs is in contact with the bottom of the upper mold base.

[0015] In summary, the technical effects and advantages of this invention are as follows: 1. The present invention has a reasonable structure. The output end of the servo motor rotates to drive the helical gear to rotate. The driving helical gear meshes with the driven helical gear. The bidirectional anti-helical screw is fixedly connected to the driven helical gear, causing the bidirectional anti-helical screw to rotate. The two ends of the bidirectional anti-helical screw are threaded to threaded tubes. Under the guidance of the guide rail and guide groove, the first and second limit clamps on the pair of threaded tubes move closer to each other, thereby clamping the shoe sole formed in the mold cavity. The telescopic end of the telescopic rod assembly moves, driving the fixed seat and slide rail to slide in the slide groove on the fixed frame, thereby removing the formed shoe sole clamped on the first and second limit clamps from the forming mold. No manual removal is required, saving time and effort. It avoids burns caused by manual removal of shoe soles and eliminates the need to wait for the formed shoe sole to cool completely, achieving continuous operation of the forming mold and improving the production speed of shoe soles. 2. In this invention, the sides of the first limiting clamp and the second limiting clamp that are close to each other are both arc-shaped structures. The pair of arc-shaped structures are respectively adapted to the arc-shaped ends of the molded shoe sole. The advantage of this setting is that it is convenient to clamp the molded shoe sole and improves the stability of clamping the molded shoe sole. 3. In this invention, by setting multiple shock-absorbing springs, the upper mold base and the lower mold base are engaged to play a shock-absorbing and buffering role, thereby improving the stability of the molding mold. The length of the clearance groove is greater than the length of the maximum relative expansion displacement of the first limit clamp and the second limit clamp, so as to avoid interference between the first limit clamp and the second limit clamp and the protective shell when they move. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 A first-person perspective 3D structural diagram of a shoe sole molding mold; Figure 2 A first-view, partially cut-away, three-dimensional structural diagram of a shoe sole molding die; Figure 3 A partial cross-sectional three-dimensional structural diagram of a shoe sole forming mold from a second-view perspective; Figure 4 A frontal view of the shoe sole forming mold; Figure 5 An enlarged three-dimensional schematic diagram of the cooperation between the lower mold and the movable clamping part; Figure 6 An enlarged three-dimensional schematic diagram of the fit between the upper mold and the movable clamping part; Figure 7 This is an enlarged three-dimensional structural diagram of the movable clamping part; Figure 8 This is a cross-sectional view of the enlarged three-dimensional structure of the lower mold base and the lower mold.

[0018] In the diagram: 1. Lower fixed plate; 2. Upper fixed plate; 3. Lower mold base; 4. Upper mold base; 5. Moving clamping part; 6. Upper mold; 7. Hydraulic guide telescopic rod assembly; 8. Guide column; 9. Shock-absorbing spring; 10. Lower mold; 11. Fixed column; 12. Starting telescopic rod assembly; 13. Servo motor; 14. Fixed frame; 15. Slide rail; 16. Fixed seat; 17. Protective shell; 18. First limit clamp; 19. Second limit clamp; 20. Mounting column; 21. Clearance groove; 22. Placement groove; 23. Bidirectional anti-helical screw; 24. Screw frame; 25. Guide rail; 26. Driven helical gear; 27. Driving helical gear; 28. Threaded pipe; 29. ​​Cooling circulation hole; 30. Injection hole. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Example: Reference Figure 1-8The shoe sole forming mold shown includes a lower fixing plate 1 and an upper fixing plate 2. A lower mold base 3 is fixedly connected to the top of the lower fixing plate 1, and a lower mold 10 is fixedly connected inside the lower mold base 3. An upper mold base 4 is fixedly connected to the bottom of the upper fixing plate 2, and an upper mold 6 is fixedly connected inside the upper mold base 4. A mold cavity is formed between the upper mold 6 and the lower mold 10. A hydraulic guide telescopic rod assembly 7 is installed between the lower fixing plate 1 and the upper fixing plate 2. The hydraulic guide telescopic rod assembly 7 is used for mold separation. It also includes a movable clamping part 5, which includes a movable unit and a clamping unit connected to each other. The clamping unit is used to clamp the shoe sole formed in the mold cavity, and the movable unit is used to move the formed shoe sole out of the mold.

[0021] In one embodiment of this invention, the moving unit includes a pair of mounting posts 20 fixedly connected to one side wall of the lower mold base 3. One end of each pair of mounting posts 20 is fixedly connected to the same fixing frame 14. An actuating telescopic rod assembly 12 is fixedly connected to one side wall of the fixing frame 14. The telescopic end of the actuating telescopic rod assembly 12 is fixedly connected to a fixing seat 16. A pair of sliding grooves are provided on the top of the fixing frame 14. One end of the fixing seat 16 is fixedly connected to a pair of slide rails 15. The pair of slide rails 15 are slidably connected within the pair of sliding grooves. A clamping unit is connected to the fixing seat 16. The clamping unit includes components fixedly connected to the fixing... A servo motor 13 is mounted on one side of the fixed base 16. A driving helical gear 27 is fixedly sleeved at the output end of the servo motor 13. A driven helical gear 26 meshes with one side of the driving helical gear 27. A pair of lead screw supports 24 are fixedly connected to one side of the fixed base 16. A single bidirectional anti-helical lead screw 23 is rotatably connected to the pair of lead screw supports 24. The driven helical gear 26 is fixedly sleeved on the bidirectional anti-helical lead screw 23. Threaded tubes 28 are threaded onto the threads at both ends of the bidirectional anti-helical lead screw 23. A first limiting clamp 18 and a second limiting clamp 19 are fixedly connected to the side walls of the pair of threaded tubes 28, respectively. Guide rails 25 are fixedly connected to the side walls. A guide groove is opened on one side of the fixed seat 16. A pair of guide rails 25 are slidably connected in the guide groove. The first limiting clamp 18 and the second limiting clamp 19 are located on both sides of the mold cavity. After the shoe sole in the mold cavity is formed, the output end of the servo motor 13 rotates to drive the helical gear 27 to rotate. The driving helical gear 27 meshes with the driven helical gear 26. The bidirectional anti-helical screw 23 is fixedly connected to the driven helical gear 26, causing the bidirectional anti-helical screw 23 to rotate. The two ends of the bidirectional anti-helical screw 23 are threadedly connected to the threaded tubes 28, and are connected to the guide rails 25 and the guide rails 28. Under the guidance of the groove, the first limiting clamp 18 and the second limiting clamp 19 on the pair of threaded tubes 28 move closer to each other, thereby clamping the shoe sole formed in the mold cavity. The telescopic end of the telescopic rod assembly 12 is activated to move, driving the fixed seat 16 and the slide rail 15 to slide in the slide groove on the fixed frame 14, so that the formed shoe sole clamped on the first limiting clamp 18 and the second limiting clamp 19 can be removed from the forming mold without manual removal, saving time and effort, avoiding burns caused by manual removal of shoe soles, eliminating the need to wait for the formed shoe sole to cool completely, realizing the continuity of the forming mold operation, and improving the shoe sole production speed.

[0022] In this embodiment, the sides of the first limiting clamp 18 and the second limiting clamp 19 that are close to each other are both arc-shaped structures. The pair of arc-shaped structures are adapted to the arcs at both ends of the molded shoe sole. The advantage of this arrangement is that it is convenient to clamp the molded shoe sole and improves the stability of clamping the molded shoe sole.

[0023] In this embodiment, a pair of placement slots 22 are provided at the bottom of the upper mold 6, and the first limiting clamp 18 and the second limiting clamp 19 are respectively located in the pair of placement slots 22. Slots are provided around the bottom of the upper mold 6, and blocks are fixedly connected around the top of the lower mold 10. The four blocks are respectively located in the four slots. By setting slots and blocks, the positioning accuracy of the upper mold 6 and the lower mold 10 is improved.

[0024] In this embodiment, a protective housing 17 is connected to one side of the fixed base 16. A clearance groove 21 is provided on one side of the protective housing 17. The first limiting clamp 18 and the second limiting clamp 19 both pass through the clearance groove 21. The length of the clearance groove 21 is greater than the length of the maximum relative expansion displacement of the first limiting clamp 18 and the second limiting clamp 19. A mounting hole is provided on one side of the protective housing 17. A threaded groove is provided at the position of the fixed base 16 corresponding to the mounting hole. A fixing bolt is threadedly connected through the mounting hole and the threaded groove. The purpose of this arrangement is to avoid interference between the first limiting clamp 18 and the second limiting clamp 19 and the protective housing 17 when they move.

[0025] As one embodiment of this invention, both the lower mold base 3 and the lower mold 10 are provided with interconnected cooling circulation holes 29. The cooling circulation holes 29 are used to connect cooling water for cooling the molded shoe sole inside the upper mold cavity of the lower mold 10. Both the lower mold base 3 and the lower mold 10 are provided with interconnected injection holes 30, which are connected to the mold cavity on the lower mold 10. By providing cooling circulation holes 29, it is convenient to accelerate the cooling and molding of the molded shoe sole inside the mold cavity through cooling water. By providing injection holes 30, it is convenient to inject sol material into the mold cavity.

[0026] In one embodiment of this invention, a plurality of fixing posts 11 are fixedly connected to the top of the lower fixing plate 1. The top ends of the fixing posts 11 are fixedly connected to the bottom of the lower mold base 3. The fixing posts 11 are used to support the lower mold base 3. A plurality of guide posts 8 are fixedly connected to the top of the lower fixing plate 1. A plurality of guide sliding holes are opened at the bottom of the upper mold base 4. One end of the guide posts 8 extends into the guide sliding holes. A shock-absorbing spring 9 is sleeved on each of the guide posts 8. The bottom ends of the shock-absorbing springs 9 are fixedly connected to the top of the lower fixing plate 1. The top ends of the shock-absorbing springs 9 are in contact with the bottom of the upper mold base 4. By setting a plurality of shock-absorbing springs 9, a shock-absorbing and buffering effect is played when the upper mold base 4 and the lower mold base 3 are engaged, thereby improving the stability of the molding die.

[0027] Working principle of this invention: The sol material is injected into the mold cavity through the injection hole 30. After injection, the sol material in the mold cavity is cooled and molded by cooling water through the cooling circulation hole 29. After the sole is formed, the upper mold base 4 and upper mold 6 are separated from the lower mold base 3 and lower mold 10 by the hydraulic guide telescopic rod assembly 7. When the molded sole needs to be removed from the cavity, the output end of the servo motor 13 rotates, driving the drive helical gear 27 to rotate. The drive helical gear 27 meshes with the driven helical gear 26. The bidirectional anti-helical screw 23 is fixedly connected to the driven helical gear 26, causing the bidirectional anti-helical screw 23 to rotate. The two ends of the bidirectional anti-helical screw 23 are threadedly connected to threaded tubes 28. Under the guidance of the guide rail 25 and the guide groove, the first limiting clamp 18 and the second limiting clamp 19 on the pair of threaded tubes 28 move closer to each other, clamping the molded sole in the cavity. The telescopic end of the telescopic rod assembly 12 is activated to move, driving the fixed seat 16 and the slide rail 15 to slide in the slide groove on the fixed frame 14, so that the molded sole clamped on the first limiting clamp 18 and the second limiting clamp 19 can be removed from the mold. No manual removal is required, saving time and effort, avoiding burns caused by manual removal of the sole, and eliminating the need to wait for the molded sole to cool completely. This achieves continuous operation of the mold and improves the production speed of the sole.

[0028] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A shoe sole forming mold, comprising a lower fixing plate (1) and an upper fixing plate (2), characterized in that: The lower fixed plate (1) is fixedly connected to the top of the lower mold base (3), and the lower mold (10) is fixedly connected inside the lower mold base (3). The upper fixed plate (2) is fixedly connected to the bottom of the upper mold base (4), and the upper mold (6) is fixedly connected inside the upper mold base (4). A mold cavity is opened between the upper mold (6) and the lower mold (10). A hydraulic guide telescopic rod assembly (7) is installed between the lower fixed plate (1) and the upper fixed plate (2). The hydraulic guide telescopic rod assembly (7) is used for mold separation. It also includes a movable clamping part (5), which includes a movable unit and a clamping unit connected to each other. The clamping unit is used to clamp the shoe sole formed in the mold cavity, and the movable unit is used to move the formed shoe sole out of the mold.

2. The shoe sole forming mold according to claim 1, characterized in that: The moving unit includes a pair of mounting columns (20) fixedly connected to one side wall of the lower mold base (3). One end of the pair of mounting columns (20) is fixedly connected to the same fixed frame (14). A start-up telescopic rod assembly (12) is fixedly connected to one side wall of the fixed frame (14). A fixed seat (16) is fixedly connected to the telescopic end of the start-up telescopic rod assembly (12). A pair of sliding grooves are provided on the top of the fixed frame (14). A pair of slide rails (15) are fixedly connected to one end of the fixed seat (16). The pair of slide rails (15) are slidably connected in the pair of sliding grooves. The clamping unit is connected to the fixed seat (16).

3. The shoe sole forming mold according to claim 2, characterized in that: The clamping unit includes a servo motor (13) fixedly connected to one side of the fixed base (16). A driving helical gear (27) is fixedly sleeved on the output end of the servo motor (13). A driven helical gear (26) meshes with one side of the driving helical gear (27). A pair of lead screw supports (24) are fixedly connected to one side of the fixed base (16). A single bidirectional anti-helical lead screw (23) is rotatably connected to the pair of lead screw supports (24). The driven helical gear (26) is fixedly sleeved on the bidirectional anti-helical lead screw (23). Both ends of the bidirectional anti-helical screw (23) are threaded with threaded tubes (28). A first limiting clamp (18) and a second limiting clamp (19) are fixedly connected to the side walls of the pair of threaded tubes (28). A guide rail (25) is fixedly connected to the side walls of the pair of threaded tubes (28). A guide groove is provided on one side of the fixed seat (16). The pair of guide rails (25) are slidably connected in the guide groove. The first limiting clamp (18) and the second limiting clamp (19) are located on both sides of the mold cavity.

4. The shoe sole forming mold according to claim 3, characterized in that: The first limiting clip (18) and the second limiting clip (19) have arc-shaped structures on one side that are close to each other, and the pair of arc-shaped structures are respectively adapted to the arc-shaped ends of the molded shoe sole.

5. A shoe sole forming mold according to claim 3, characterized in that: The bottom of the upper mold (6) is provided with a pair of placement slots (22), the first limiting clamp (18) and the second limiting clamp (19) are respectively located in the pair of placement slots (22), the bottom of the upper mold (6) is provided with slots around the perimeter, and the top of the lower mold (10) is fixedly connected with blocks around the perimeter, and the four blocks are respectively located in the four slots.

6. A shoe sole forming mold according to claim 3, characterized in that: A protective housing (17) is provided on one side of the fixed base (16). A clearance groove (21) is provided on one side of the protective housing (17). The first limiting clamp (18) and the second limiting clamp (19) both pass through the clearance groove (21). The length of the clearance groove (21) is greater than the length of the maximum relative expansion displacement of the first limiting clamp (18) and the second limiting clamp (19). A mounting hole is provided on one side of the protective housing (17). A threaded groove is provided at the position of the fixed base (16) corresponding to the mounting hole. A fixing bolt is threadedly connected through the mounting hole and the threaded groove.

7. The shoe sole forming mold according to claim 1, characterized in that: Both the lower mold base (3) and the lower mold (10) are provided with interconnected cooling circulation holes (29). The cooling circulation holes (29) are used to connect cooling water and to cool the molded shoe sole in the mold cavity of the lower mold (10). Both the lower mold base (3) and the lower mold (10) are provided with interconnected injection holes (30). The injection holes (30) are connected to the mold cavity of the lower mold (10).

8. The shoe sole forming mold according to claim 1, characterized in that: The top of the lower fixing plate (1) is fixedly connected to a plurality of fixing columns (11), the top ends of the plurality of fixing columns (11) are fixedly connected to the bottom of the lower mold base (3), and the plurality of fixing columns (11) are used to support the lower mold base (3).

9. A shoe sole forming mold according to claim 1, characterized in that: The top of the lower fixed plate (1) is fixedly connected with a plurality of guide posts (8), and the bottom of the upper mold base (4) is provided with a plurality of guide sliding holes. One end of the plurality of guide posts (8) extends into the plurality of guide sliding holes respectively. Each of the plurality of guide posts (8) is fitted with a shock-absorbing spring (9). The bottom end of the plurality of shock-absorbing springs (9) is fixedly connected to the top of the lower fixed plate (1), and the top end of the plurality of shock-absorbing springs (9) is in contact with the bottom of the upper mold base (4).

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