Corollary equipment for sole foaming

Abstract

The utility model discloses supporting equipment for sole foaming, which relates to the technical field of sole production and comprises a fixed template, and four corners of the bottom of the fixed template are fixedly connected with positioning rods; a movable mold plate and a lifting plate are installed on the inner sides of the four positioning rods correspondingly, the movable mold plate and the lifting plate are in sliding fit with the positioning rods through sliding holes in the four corners of the movable mold plate and the lifting plate correspondingly, two symmetrically-distributed cushion blocks are fixedly connected to the top of the lifting plate, and evenly-distributed forming needles are fixedly connected to the tops of the cushion blocks; and the forming needle extends into the movable template. According to the supporting equipment for sole foaming, the lifting plate drives the forming needle to be accurately inserted into the foaming cavity, a hole structure penetrating through a sole is directly formed in the foaming process, secondary processing is not needed, and uniform distribution of holes is achieved; and the sealing plate can be separated by unscrewing the fixing bolt, so that blockages in the runner and the injection hole are convenient to clean, the downtime of equipment is shortened, and the maintenance cost is reduced.

Description

A set of supporting equipment for shoe sole foaming Technical Field

[0001] This utility model relates to the field of shoe sole production technology, specifically to a supporting equipment for shoe sole foaming. Background Technology

[0002] Foaming of shoe soles usually refers to the manufacturing of shoe soles through a foaming process, commonly seen in sports shoes, casual shoes, etc. Foaming of shoe soles requires foaming molds for production, and foaming molds are not easy to demold after production.

[0003] To overcome the aforementioned defects, a prior art Chinese patent (publication number: CN208020637U) discloses a TPU foam granule injection molding mold for shoe soles, including a punch and a die. The upper sidewall of the die has a cavity, and a fixing rod is fixedly connected to the lower sidewall. A base is fixedly connected to the lower end of the fixing rod. L-shaped grooves are formed on the inner walls of both sides of the cavity, and a sleeve rod is fixedly connected between the inner walls of each L-shaped groove. An L-shaped plate is fitted onto each sleeve rod. Two sliding grooves are formed on the upper sidewall of the base, and U-shaped plates are slidably connected within each of the two sliding grooves. Openings are formed on both sidewalls of the die. By incorporating a breathable steel core within the punch, gas generated during injection molding is discharged, ensuring product molding quality. Cooling pipes accelerate product molding. The movement of the U-shaped plate drives the rotation of the L-shaped plate, thereby ejecting the molded product for easy demolding. The structure is simple, convenient, and practical.

[0004] While existing technologies can overcome the shortcomings mentioned above, other problems still exist in their operation: the sole is usually formed as a single unit during the foaming process, while existing sports shoe soles usually have a multi-layer structure, and one of the layers usually has a porous structure due to the need for breathability. Existing sole foaming molds are not convenient for producing soles with porous structures. Summary of the Invention

[0005] The purpose of this utility model is to provide a matching equipment for shoe sole foaming, so as to solve the problem that in the above-mentioned background technology, sports shoe soles usually have a multi-layer structure, and one of the layers usually has a porous structure due to the need for breathability. Existing shoe sole foaming molds are not convenient for producing shoe soles with porous structures.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a supporting equipment for foaming shoe soles, including a fixed template, wherein positioning rods are fixedly connected to the four corners of the bottom of the fixed template;

[0007] The four positioning rods are respectively equipped with movable templates and lifting plates on their inner sides. The movable templates and lifting plates are slidably engaged with the positioning rods through sliding holes at their four corners. The top of the lifting plate is fixedly connected to two symmetrically distributed pads, and the top of the pads is fixedly connected to evenly distributed forming needles, which extend into the interior of the movable template.

[0008] Preferably, the movable template has two symmetrically distributed foaming cavities inside, and the two foaming cavities are respectively aligned with two pads. The foaming cavities have evenly distributed reserved holes inside, and the reserved holes are aligned with the molding pin.

[0009] Preferably, a spring is fixedly connected between the top of the lifting plate and the bottom of the movable template, and four springs are distributed at the four corners of the movable template and the lifting plate, and the springs are arranged around the positioning rod.

[0010] Preferably, the top of the movable template is provided with two symmetrically distributed venting grooves, and the two venting grooves are connected to the inside of the foaming cavity, and the venting grooves connect the foaming cavity with the outside.

[0011] Preferably, the fixed template, the movable template, and the lifting plate are all fixedly connected to joints on both sides, and the fixed template, the movable template, and the lifting plate are all equipped with cooling pipes inside. When the fixed template, the movable template, and the lifting plate are in contact with each other, the cooling pipes are distributed on the outside of the foaming cavity.

[0012] Preferably, a sealing plate is installed on the top of the fixed template, and a flow channel is provided on the top of the fixed template. The sealing plate is pressed with the top of the fixed template by bolts to form a sealing structure. An injection hole is provided in the middle of the sealing plate, and the injection hole communicates with the inside of the flow channel.

[0013] Preferably, the top of the fixed template is fixedly connected with four annularly distributed threaded sleeves, and the inside of the sealing plate is provided with mounting holes that are aligned with the threaded sleeves. The threaded sleeves are connected by a fixing bolt, and a lower pressure sleeve is fixedly connected to the outside of the fixing bolt, with the bottom of the lower pressure sleeve fitting against the top of the sealing plate.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This is a set of supporting equipment for shoe sole foaming. By driving the forming needle to be precisely inserted into the foaming cavity through the lifting plate, a hole structure that runs through the shoe sole is directly formed during the foaming process, without the need for secondary processing, and the holes are evenly distributed.

[0016] The sealing plate can be separated by loosening the fixing bolts, which makes it easier to clean the blockage in the flow channel and injection hole, reduce equipment downtime, and lower maintenance costs. Attached Figure Description

[0017] Figure 1 is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 is a cross-sectional structural diagram of this utility model;

[0019] Figure 3 is a schematic diagram of the lifting plate structure of this utility model;

[0020] Figure 4 is a schematic diagram of the movable template structure of this utility model;

[0021] Figure 5 is a schematic diagram of the fixed template structure of this utility model;

[0022] Figure 6 is a schematic diagram of the lower pressure sleeve structure of this utility model.

[0023] In the diagram: 1. Fixed template; 2. Positioning rod; 3. Movable template; 4. Lifting plate; 5. Pad; 6. Molding needle; 7. Foaming cavity; 8. Reserved hole; 9. Spring; 10. Exhaust groove; 11. Connector; 12. Cooling pipe; 13. Sealing plate; 14. Flow channel; 15. Injection hole; 16. Threaded sleeve; 17. Mounting hole; 18. Fixing bolt; 19. Lower pressure sleeve. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Example 1: Please refer to Figures 1-6. This utility model provides the following technical solution: A supporting device for foaming shoe soles, including a fixed template 1, with positioning rods 2 fixedly connected to the four corners of the bottom of the fixed template 1; movable templates 3 and lifting plates 4 are respectively installed on the inner sides of the four positioning rods 2, and the movable template 3 and lifting plates 4 are slidably engaged with the positioning rods 2 through sliding holes at their four corners; two symmetrically distributed pads 5 are fixedly connected to the top of the lifting plate 4, and uniformly distributed forming needles 6 are fixedly connected to the top of the pads 5, and the forming needles 6 extend into the interior of the movable template 3; the movable template 3 has two symmetrically distributed foaming cavities 7 inside, and the two foaming cavities 7 are respectively aligned with the two pads 5, and the foaming cavities 7 have evenly distributed foaming cavities inside. The pre-drilled hole 8 is aligned with the forming needle 6; a spring 9 is fixedly connected between the top of the lifting plate 4 and the bottom of the movable template 3, and four springs 9 are distributed at the four corners of the movable template 3 and the lifting plate 4, and the springs 9 are arranged around the positioning rod 2; two symmetrically distributed exhaust grooves 10 are provided on the top of the movable template 3, and the two exhaust grooves 10 communicate with the inside of the foaming cavity 7, and the exhaust grooves 10 make the foaming cavity 7 communicate with the outside; the fixed template 1, the movable template 3 and the lifting plate 4 are all fixedly connected with joints 11 on both sides, and the fixed template 1, the movable template 3 and the lifting plate 4 are all provided with cooling pipes 12. When the fixed template 1, the movable template 3 and the lifting plate 4 are in contact with each other, the cooling pipes 12 are distributed on the outside of the foaming cavity 7.

[0026] First, the lifting plate 4 is driven upward by an external drive device. As the lifting plate 4 slides upward inside the multiple positioning rods 2, the top spring 9 also rises accordingly. Since the top of the spring 9 is connected to the bottom of the movable template 3, the upward movement of the lifting plate 4 will push the movable template 3 upward together until the movable template 3 is tightly fitted with the fixed template 1.

[0027] When the movable template 3 is in contact with the fixed template 1, the lifting plate 4 continues to move upward, and the pad 5 also rises accordingly, contacting the bottom of the movable template 3. The molding needle 6 on the top of the pad 5 will extend into the foaming cavity 7 through the reserved hole 8, forming a sealed structure in the foaming cavity 7.

[0028] The foaming material is injected into the foaming cavity 7 through the injection hole 15 and the flow channel 14. During the foaming process, the air inside the foaming cavity 7 is discharged through the exhaust groove 10. At the same time, the molding needle 6 forms pores during the expansion of the foaming material, ensuring the internal structure of the shoe sole foam. During the foaming process, water is introduced into the cooling pipe 12 through the connector 11, allowing the cooling water to circulate within the cooling pipe 12, thereby cooling the foaming cavity 7 and the foaming material inside.

[0029] After the foamed material has solidified in the foaming cavity 7, the external drive device will move the lifting plate 4 downward, and the movable template 3 will also move downward due to gravity. At this time, the spring 9 will apply an upward force to the movable template 3, causing the movable template 3 to separate from the fixed template 1, and the pad 5 will separate the molding needle 6 from the inside of the sole, thereby facilitating the demolding of the sole in the foaming cavity 7.

[0030] Example 2: Based on Example 1, the following structure is also disclosed: A sealing plate 13 is installed on the top of the fixed template 1, and a flow channel 14 is provided on the top of the fixed template 1. The sealing plate 13 is pressed with the top of the fixed template 1 by bolts to form a sealing structure. An injection hole 15 is provided in the middle of the sealing plate 13, and the injection hole 15 communicates with the inside of the flow channel 14. Four annularly distributed threaded sleeves 16 are fixedly connected to the top of the fixed template 1. The sealing plate 13 is provided with mounting holes 17 that are aligned with the threaded sleeves 16. The threaded sleeves 16 are internally threaded and connected by fixing bolts 18. A lower pressure sleeve 19 is fixedly connected to the outside of the fixing bolts 18, and the bottom of the lower pressure sleeve 19 is in contact with the top of the sealing plate 13.

[0031] A sealing plate 13 is installed on the top of the fixed template 1, and the sealing plate 13 is tightly fitted to the fixed template 1 by fixing bolts 18 to ensure the stability of the internal pressure of the flow channel 14. When the foaming material is injected into the foaming chamber 7, the material enters the flow channel 14 through the injection hole 15 and is evenly injected into the respective foaming chamber 7 from the two outlets of the flow channel 14 to ensure that the foaming material can be evenly distributed.

[0032] If the flow channel 14 or injection hole 15 becomes blocked, the lower pressure sleeve 19 can be separated from the sealing plate 13 by rotating the fixing bolt 18, thereby removing the sealing plate 13 and facilitating the cleaning of the flow channel 14 and injection hole 15. When reinstalling the sealing plate 13, align the mounting hole 17 on the sealing plate 13 with the threaded sleeve 16 to ensure that it can be accurately fixed on the top of the fixing template 1. By rotating the fixing bolt 18, the lower pressure sleeve 19 will once again fit tightly against the sealing plate 13, forming a stable sealing structure.

[0033] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" or "linked" should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral connection; it can refer to a mechanical connection or an electrical connection; it can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0034] 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 set of supporting equipment for foaming shoe soles, comprising a fixed template (1), wherein positioning rods (2) are fixedly connected to the four corners of the bottom of the fixed template (1); characterized in that: The four positioning rods (2) are respectively equipped with movable templates (3) and lifting plates (4) on their inner sides. The movable templates (3) and lifting plates (4) are slidably engaged with the positioning rods (2) through the sliding holes at their four corners. The top of the lifting plate (4) is fixedly connected with two symmetrically distributed pads (5), and the top of the pads (5) is fixedly connected with uniformly distributed forming needles (6), which extend into the interior of the movable templates (3).

2. The supporting equipment for shoe sole foaming according to claim 1, characterized in that: The active template (3) has two symmetrically distributed foaming cavities (7) inside, and the two foaming cavities (7) are respectively aligned with two pads (5). The foaming cavities (7) have evenly distributed reserved holes (8) inside, and the reserved holes (8) are aligned with the molding needles (6).

3. The supporting equipment for shoe sole foaming according to claim 1, characterized in that: A spring (9) is fixedly connected between the top of the lifting plate (4) and the bottom of the movable template (3), and four springs (9) are distributed at the four corners of the movable template (3) and the lifting plate (4), and the springs (9) are arranged around the positioning rod (2).

4. The supporting equipment for shoe sole foaming according to claim 3, characterized in that: The active template (3) has two symmetrically distributed exhaust grooves (10) on its top, and the two exhaust grooves (10) are connected to the inside of the foaming cavity (7), and the exhaust grooves (10) connect the foaming cavity (7) to the outside.

5. The supporting equipment for shoe sole foaming according to claim 1, characterized in that: The fixed template (1), the movable template (3) and the lifting plate (4) are all fixedly connected with joints (11) on both sides, and the fixed template (1), the movable template (3) and the lifting plate (4) are all equipped with cooling pipes (12). When the fixed template (1), the movable template (3) and the lifting plate (4) are in contact with each other, the cooling pipes (12) are distributed on the outside of the foaming cavity (7).

6. The supporting equipment for shoe sole foaming according to claim 1, characterized in that: The top of the fixed template (1) is equipped with a sealing plate (13), and the top of the fixed template (1) is provided with a flow channel (14). The sealing plate (13) is pressed with the top of the fixed template (1) by bolts to form a sealing structure. The middle of the sealing plate (13) is provided with an injection hole (15), and the injection hole (15) communicates with the inside of the flow channel (14).

7. The supporting equipment for shoe sole foaming according to claim 6, characterized in that: The top of the fixed template (1) is fixedly connected with four annularly distributed threaded sleeves (16), and the sealing plate (13) is provided with mounting holes (17) that are aligned with the threaded sleeves (16). The threaded sleeves (16) are internally threaded and connected by a fixing bolt (18). A lower pressure sleeve (19) is fixedly connected to the outside of the fixing bolt (18), and the bottom of the lower pressure sleeve (19) is in contact with the top of the sealing plate (13).

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