Drainage mold for sole production

Abstract

The utility model relates to the technical field of sole production, in particular to a drainage mold for sole production. Comprising a lower die plate, an upper die plate covering the lower die plate, a cavity formed in the lower die plate, a male die arranged on the upper die plate and matched with the cavity, a glue filling port formed in the upper die plate, and a runner formed between the upper die plate and the lower die plate, communicated with the glue filling port and used for allowing glue to flow into the position between the cavity and the male die. And a drainage device for smoothly filling the cavity and the male die with the sizing material is arranged between the upper die plate and the lower die plate.

Description

TECHNICAL FIELD

[0001] The utility model relates to the sole production technical field, especially relate to a drainage mould for sole production. BACKGROUND

[0002] Polyurethane (PU) is a material with very strong plasticity, and is widely used in the fields of textile, building, aviation, ship, transportation, medicine, electronics, shoemaking, etc. In the shoemaking industry, it is often used to manufacture soles because of its good wear resistance, insulation, bending resistance, and slip resistance.

[0003] Now, in order to enhance the strength of the shoe, a part of the shoe sole is usually added to the toe, but when the shoe mold is used to produce the sole, the extrusion and glue injection method is usually adopted, that is, the glue injection machine is used to produce the pushing force. This method can easily cause most of the materials to flow and fill the cavity in a predetermined time, especially the curved part, which needs more pressure to push, greatly affecting the yield of the sole product and reducing the production efficiency. SUMMARY

[0004] Therefore, in view of the above problems, the utility model provides a drainage mould for sole production.

[0005] To achieve the above purpose, the technical scheme of the utility model provides a drainage mould for sole production, which comprises a lower mold plate, an upper mold plate arranged on the lower mold plate, a cavity formed in the lower mold plate, a punch matched with the cavity arranged on the upper mold plate, a glue injection port formed in the upper mold plate, a flow channel formed between the upper mold plate and the lower mold plate and connected with the glue injection port for allowing the glue to flow into the cavity and the punch, and a drainage device arranged between the upper mold plate and the lower mold plate for allowing the glue to smoothly fill the cavity and the punch.

[0006] Further improvement is that the drainage device comprises an air suction port formed through the lower mold plate, an air suction pipe inserted into the air suction port and located at one end outside the lower mold plate, and a negative pressure machine connected with the air suction pipe for extracting the gas between the upper mold plate and the lower mold plate to form a negative pressure environment.

[0007] Further improvement is that the air suction port is located outside the cavity and away from the glue injection port.

[0008] Further improvement is that the upper mold plate is further provided with an air suction groove matched with the air suction port for improving the air suction efficiency.

[0009] Further improvement is that the upper mold plate or the lower mold plate is further provided with a sealing groove matched with the cavity and the punch, and a sealing strip is arranged in the sealing groove.

[0010] Further improvement is that the glue pouring port is further provided with a sealing sleeve matched with a nozzle of an external glue pouring machine, so that the sealing performance is further enhanced and the negative pressure environment is quickly formed.

[0011] Further improvement is that the lower mold plate is provided with a positioning groove, and the upper mold plate is provided with a positioning block matched with the positioning groove.

[0012] Further improvement is that the lower mold plate is further provided with a positioning needle, and the upper mold plate is further provided with a positioning hole matched with the positioning needle.

[0013] Further improvement is that one end of the upper mold plate is hingedly arranged on the lower mold plate, and a lock catch device is further arranged between the upper mold plate and the lower mold plate.

[0014] Further improvement is that the lock catch device comprises a fixing nail arranged on the upper mold plate, a rotating block rotatably arranged on the lower mold plate, and a fixing hook groove arranged on the rotating block and used for hooking the fixing nail.

[0015] Further improvement is that the upper mold plate and the lower mold plate are respectively provided with handles facilitating opening and closing.

[0016] Further improvement is that the lower mold plate is further provided with a groove for placing the air suction pipe.

[0017] The advantages and beneficial effects of the shoe sole production drainage mold are as follows.

[0018] The structure is simple and convenient to use, the drainage device is arranged between the upper mold plate and the lower mold plate, so that a negative pressure environment is formed between the upper mold plate and the lower mold plate, glue flowing into the glue pouring port can be extruded and filled under the action of air pressure, the gap between the mold cavity and the male mold can be better filled compared with the traditional extrusion filling mode using more glue (about 40% more than the shoe sole itself), the entire mold cavity can be better filled, and the yield is higher and the cost is lower. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is an open state schematic view of the shoe sole production drainage mold.

[0020] Figure 2 It is a bottom view schematic view of the upper mold plate of the shoe sole production drainage mold.

[0021] Figure 3 It is a top view schematic view of the shoe sole production drainage mold.

[0022] Figure 4 It is a bottom view schematic view of the shoe sole production drainage mold.

[0023] Figure 5The utility model discloses a drainage mold for sole production.

[0024] In the figure: 101, lower die plate; 102, upper die plate; 103, cavity; 104, punch; 105, glue pouring port; 106, runner; 107, air suction port; 108, air suction pipe; 109, air suction groove; 110, sealing groove; 111, sealing strip; 112, sealing sleeve; 113, positioning groove; 114, positioning block; 115, chamfer; 116, positioning needle; 117, positioning hole; 118, fixing nail; 119, rotating block; 120, fixing hook groove; 121, handle; 123, slot. DETAILED DESCRIPTION

[0025] The utility model discloses a drainage mold for sole production.

[0026] As Figures 1-5 shown, a drainage mold for sole production includes: lower die plate 101, upper die plate 102 covered on lower die plate 101, cavity 103 opened on lower die plate 101, punch 104 matched with cavity 103 and arranged on upper die plate 102, glue pouring port 105 opened on upper die plate 102, runner 106 opened on upper die plate 102 and communicated with glue pouring port 105 for letting glue flow into the space between cavity 103 and punch 104, and drainage device arranged between upper die plate 102 and lower die plate 101 for letting glue fill cavity 103 and punch 104 smoothly.

[0027] In order to form negative pressure environment between upper die plate 102 and lower die plate 101, so that glue is filled in the space between cavity 103 and punch 104 under the action of air pressure, the drainage device includes: air suction port 107 opened on lower die plate 101, air suction pipe 108 inserted into air suction port 107 and located on the outer side of lower die plate 101, and negative pressure machine (not shown in the figure) communicated with air suction pipe 108 for extracting gas between upper die plate 102 and lower die plate 101 to form negative pressure environment.

[0028] There is inevitable gap between upper die plate 102 and lower die plate 101, so although air suction port 107 is not arranged in cavity 103, it can also extract gas between cavity 103 and punch 104 to form negative pressure environment.

[0029] In order to prevent the glue from flowing to the air inlet 107 and causing the air inlet 107 to be blocked, the air inlet 107 is located outside the cavity 103 and away from the glue inlet 105, and due to the use of negative pressure drainage, the user can only inject the weight of the sole itself 120% when refilling the glue, which further avoids the risk of the air inlet 107 being blocked by the glue.

[0030] In order to improve the efficiency of the air inlet 107 in extracting air, the upper die plate 102 is also provided with an air inlet groove 109 matched with the air inlet 107 to improve the air inlet efficiency.

[0031] In order to prevent external gas from entering between the upper die plate 102 and the lower die plate 101, accelerate the formation speed of the negative pressure environment, and improve the stability of the negative pressure environment, the upper die plate 102 or the lower die plate 101 is also provided with a sealing groove 110 matched with the cavity 103 and the punch 104, and the sealing groove 110 is provided with a sealing strip 111.

[0032] In order to further accelerate the formation speed of the negative pressure environment and improve the production efficiency, the glue inlet 105 is also provided with a sealing sleeve 112 matched with the nozzle of the external glue filling machine to further enhance the sealing performance and facilitate the rapid formation of the negative pressure environment.

[0033] In order to facilitate the alignment of the upper die plate 102 and the lower die plate 101, improve the production convenience, and improve the product quality, the lower die plate 101 is provided with a positioning groove 113, and the upper die plate 102 is provided with a positioning block 114 matched with the positioning groove 113, and the positioning block 114 is provided with a chamfer 115.

[0034] In order to facilitate the blanking of the available part of the vamp, the lower die plate 101 is also provided with a positioning needle 116, and the upper die plate 102 is also provided with a positioning hole 117 matched with the positioning needle 116.

[0035] In order to prevent the glue from pushing open the drainage mold and causing air leakage, which affects the product quality, one end of the upper die plate 102 is hingedly arranged on the lower die plate 101, and a locking device is arranged between the upper die plate 102 and the lower die plate 101, which comprises: a fixed nail 118 arranged on the upper die plate 102, a rotating block 119 rotatably arranged on the lower die plate 101, and a fixed hook groove 120 arranged on the rotating block 119 for hooking the fixed nail 118.

[0036] In order to facilitate the user to quickly open and close the drainage mold, the upper die plate 102 and the lower die plate 101 are respectively provided with handles 121 for easy opening and closing.

[0037] In order to facilitate the placement of the drainage mold and prevent the air suction pipe 108 from being pressed to affect air suction, the lower die plate 101 is also provided with a slot 123 for placing the air suction pipe 108.

[0038] Working principle: during production, first connect the air suction pipe 108 to the air suction port 107, then insert the nozzle of the glue filling machine into the glue filling port 105 and abut against the sealing sleeve 112, and simultaneously start the negative pressure machine to perform vacuumization on the inside of the drainage mold, so as to form a negative pressure environment in the drainage mold;

[0039] After the negative pressure environment is formed, the glue filling can be performed, at this time, the glue is guided to fill the cavity 103 and the punch 104 under the action of air pressure, the speed of glue flow is improved, and in order to prevent the glue from flowing into the air suction port 107, the air suction port 107 is arranged outside the cavity 103, and the mass of the filled glue is reduced, so that the flow range of the glue is controlled before flowing into the air suction port 107, which is different from the traditional extrusion mode which needs a large amount of glue filling, has higher stability and lower production cost;

[0040] After the glue filling is completed, the negative pressure machine is closed, and the drainage mold is heat-pressed, so that the sole forming is obtained;

[0041] Finally, the drainage mold is opened, the sole is taken out, and the excess part is removed, so that the production and manufacturing of the sole are completed.

[0042] The above shows and describes the basic principle and main features of the utility model and its advantages, and the person skilled in the art should understand that the utility model is not limited by the above-mentioned embodiments, the above-mentioned embodiments and the description in the description are only to illustrate the principle of the utility model, under the premise of not departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, these changes and improvements all fall within the scope of the utility model claimed, and the scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. A drain mold for shoe sole production, comprising: The lower die plate, the upper die plate arranged on the lower die plate, the cavity arranged on the lower die plate, the punch arranged on the upper die plate and matched with the cavity, the glue pouring port arranged on the upper die plate, the flow channel arranged on the upper die plate and matched with the glue pouring port and used for allowing the glue to flow into the cavity and the punch, characterized in that: the upper die plate and the lower die plate are arranged with the drainage device used for allowing the glue to fill the cavity and the punch smoothly.

2. The drainage mold for shoe sole production according to claim 1, wherein: The drainage device comprises: the air suction port arranged on the lower die plate, the air suction pipe arranged on one end of the lower die plate outside the air suction port, and the negative pressure machine communicated with the air suction pipe and used for extracting the gas between the upper die plate and the lower die plate to form the negative pressure environment.

3. The draining mold for shoe sole production according to claim 2, characterized in that: The air suction port is arranged outside the cavity and away from the glue pouring port.

4. The draining mold for shoe sole production according to claim 2, characterized in that: The upper die plate is further arranged with the air suction groove matched with the air suction port and used for improving the air suction efficiency.

5. The drain mold for shoe sole production according to claim 2, wherein: The upper die plate or the lower die plate is further arranged with the sealing groove matched with the cavity and the punch, and the sealing strip is arranged in the sealing groove.

6. The drain mold for shoe sole production according to claim 2, wherein: The glue pouring port is further arranged with the sealing sleeve matched with the nozzle of the external glue pouring machine, so as to further enhance the sealing property and facilitate the rapid formation of the negative pressure environment.

7. The drain mold for shoe sole production according to claim 1, wherein: The lower die plate is arranged with the positioning groove, and the upper die plate is arranged with the positioning block matched with the positioning groove.

8. The drain mold for shoe sole production according to claim 1, wherein: The lower die plate is further arranged with the positioning needle, and the upper die plate is further arranged with the positioning hole matched with the positioning needle.

9. The drain mold for shoe sole production according to claim 1, wherein: One end of the upper die plate is arranged on the lower die plate in a hinged manner, and the upper die plate and the lower die plate are further arranged with the lock device.

10. The drain mold for shoe sole production according to claim 9, wherein: The lock device comprises: the fixing nail arranged on the upper die plate, the rotating block arranged on the lower die plate in a rotatable manner, and the fixing hook groove arranged on the rotating block and used for hooking the fixing nail.

11. The drain mold for shoe sole production according to claim 9, wherein: The upper die plate and the lower die plate are respectively arranged with the handle used for facilitating the opening and closing.

12. The drain mold for shoe sole production according to claim 2, wherein: The lower die plate is further arranged with the slot used for placing the air suction pipe.

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