Die-casting mold, die-casting equipment and manufacturing method for vulcanized rubber boots

Abstract

The present invention relates to a die-casting mold, die-casting equipment and manufacturing method for vulcanized rubber boots. The glue injection guide plate therein includes a plate body, and the following are provided on the plate body: a glue injection hole for connecting with an external injection head to inject unvulcanized compound; and an annular glue injection channel for discharging the unvulcanized compound injected externally in an annular distribution. By using the guide plate and related molds and equipment according to the present invention, an integrally formed vulcanized rubber boot can be manufactured, which includes a barrel body, a boot sole and a boot lining integrally die-cast.

Description

Technical Field

[0001] The present invention relates to a die-casting mold, die-casting equipment and manufacturing method for vulcanized rubber boots. Background Art

[0002] Vulcanized rubber boots are widely used in field operations, such as fishing, etc., as well as in safety labor protection and fashion. They have high requirements for waterproof performance.

[0003] However, different from materials such as PVC, due to the poor fluidity of rubber materials, it is difficult to achieve integral die-casting molding in the current vulcanized rubber boot manufacturing industry, and semi-automatic production lines dominate the industry.

[0004] In a semi-automatic production line, first, a rubber sheet with a predetermined shape and thickness is manufactured through processes such as mixing, extrusion, and calendering. Workers put the boot lining on the shoe last on the assembly line, and various pre-manufactured rubber sheets are closely attached to the boot lining in a predetermined manner to form the barrel part of the vulcanized rubber boot. According to different processes, the pre-manufactured boot sole can be pasted to the barrel part of the vulcanized rubber boot before or after vulcanization to complete the overall manufacturing.

[0005] In order to detect air leakage, special equipment is needed to conduct manual tests on the barrel part or the entire vulcanized rubber boot. Generally speaking, since the barrel part is formed by manually stacking rubber sheets, it is quite common for the vulcanized rubber boots manufactured in this way to have water leakage parts. Some parts are difficult to repair in subsequent processes, so the rejection rate is quite high, greatly increasing the production cost of vulcanized rubber boots.

[0006] Therefore, an improved production process for vulcanized rubber boots is needed. Summary of the Invention

[0007] According to one aspect of the present invention, there is provided a rubber injection guide plate for guiding the injection of unvulcanized mixed rubber material, including a plate body, wherein the plate body is provided with: a rubber injection hole for connecting with an external injection head to inject unvulcanized mixed rubber material; and an annular rubber injection channel for guiding the externally injected unvulcanized mixed rubber material to be distributed in an annular shape.

[0008] Preferably, the plate body is further provided with a distribution chamber, the distribution chamber is connected to the rubber injection hole through a rubber injection channel, and is connected to the annular rubber injection channel through a diversion channel.

[0009] Preferably, there are multiple diversion channels, and each diversion channel connects the distribution chamber to the annular rubber injection channel; preferably, there are 4 diversion channels, which are spaced around the distribution chamber.

[0010] Preferably, the glue injection hole is provided on one side of the plate body, and the distribution chamber is arranged inside the middle of the plate body.

[0011] Preferably, the annular glue injection channel is an annular outlet formed in the bottom of the plate body. Preferably, the shape enclosed by the annular outlet corresponds to the annular shape of the bottom of the vulcanized rubber boot barrel.

[0012] Preferably, the annular glue injection channel is formed as a continuous annular outlet.

[0013] Preferably, the annular glue injection channel is formed as a discontinuous annular outlet; preferably, a plurality of circular hole outlets are evenly spaced on the annular glue injection channel.

[0014] According to another aspect of the present invention, there is provided a die-casting mold for a vulcanized rubber boot, comprising: a barrel mold having an inner cavity corresponding to the barrel of the vulcanized rubber boot; a shoe last mold having a shape corresponding to the barrel of the vulcanized rubber boot and adapted to be installed into the inner cavity of the barrel mold to form a die-casting cavity between the wall of the inner cavity of the barrel mold and the outer surface of the shoe last mold; and a glue injection guide plate adapted to be installed on the barrel mold for guiding the injection of unvulcanized compound, including a plate body, wherein the plate body is provided with: a glue injection hole for connecting with an external injection head to inject unvulcanized compound; and an annular glue injection channel for introducing the externally injected unvulcanized compound into the die-casting cavity in an annular distribution.

[0015] Preferably, the barrel mold includes a left barrel mold and a right barrel mold that can be matched and installed with each other.

[0016] Preferably, the barrel mold includes a left barrel mold, a right barrel mold and a rear barrel mold that can be matched and installed with each other.

[0017] Preferably, the barrel mold includes a left barrel mold, a right barrel mold and a front barrel mold that can be matched and installed with each other.

[0018] Preferably, the top of the barrel mold and the bottom of the glue injection guide plate have mating joint parts, and the glue injection guide plate is adapted to be clamped to the top of the barrel mold through the joint parts.

[0019] Preferably, it further includes: a sole mold having a sole glue injection hole and a sole mold cavity corresponding to the shape of the sole of the vulcanized rubber boot for die-casting the sole of the vulcanized rubber boot; the sole mold has a sole joint part and is adapted to be clamped to the top of the barrel mold and the top of the glue injection guide plate through the sole joint part.

[0020] Preferably, a distribution chamber is further provided on the plate body. The distribution chamber is connected to the glue injection hole through a glue injection channel and is connected to the annular glue injection channel through a diversion channel.

[0021] Preferably, there are a plurality of the diversion channels, and each diversion channel connects the distribution chamber to the annular glue injection channel; preferably, there are 4 diversion channels, which are distributed at intervals around the distribution chamber.

[0022] Preferably, the glue injection hole is provided on one side of the plate body, and the distribution chamber is provided inside the middle of the plate body.

[0023] Preferably, the annular glue injection channel is an annular outlet formed in the bottom of the plate body. Preferably, the shape surrounded by the annular outlet corresponds to the annular shape of the bottom of the vulcanized rubber boot barrel.

[0024] Preferably, the annular glue injection channel is formed as a continuous annular outlet.

[0025] Preferably, the annular glue injection channel is formed as a discontinuous annular outlet; preferably, there are a plurality of circular hole outlets evenly spaced on the annular glue injection channel.

[0026] According to another aspect of the present invention, there is provided a die-casting mold for a vulcanized rubber boot, including: a barrel mold having an inner cavity corresponding to the barrel of the vulcanized rubber boot, and an annular glue injection diversion channel is provided at the top of the barrel mold, and the annular glue injection channel is communicated with the inner cavity through a diversion channel; a shoe last mold having a shape corresponding to the barrel of the vulcanized rubber boot and adapted to be installed into the inner cavity of the barrel mold to form a die-casting cavity between the wall of the inner cavity of the barrel mold and the outer surface of the shoe last mold; and a glue injection diversion plate adapted to be installed on the barrel mold for guiding the injection of unvulcanized compound, including a plate body, wherein the following are provided on the plate body: a glue injection hole for connecting with an external injection head to inject unvulcanized compound; and an annular primary diversion channel, the primary diversion channel is connected to the glue injection hole and is connected to the annular glue injection channel on the barrel mold through a diversion channel.

[0027] Preferably, the barrel mold includes a left barrel mold and a right barrel mold that can be matched and installed with each other.

[0028] Preferably, the barrel mold includes a left barrel mold, a right barrel mold and a rear barrel mold that can be matched and installed with each other.

[0029] Preferably, the barrel mold includes a left barrel mold, a right barrel mold and a front barrel mold that can be matched and installed with each other.

[0030] Preferably, the top of the barrel body mold and the bottom of the glue injection diversion plate have mating joint parts, and the glue injection diversion plate is adapted to be clamped to the top of the barrel body mold through the joint parts.

[0031] Preferably, it further includes: a sole mold, having a sole glue injection hole and a sole cavity corresponding to the shape of the sole of the vulcanized rubber boot, for die-casting the sole of the vulcanized rubber boot; the sole mold has a sole joint part and is adapted to be clamped to the top of the barrel body mold and the top of the glue injection diversion plate through the sole joint part.

[0032] Preferably, the plate body is further provided with a distribution chamber, and the distribution chamber is connected to the glue injection hole through a glue injection channel and is connected to the primary shunt channel through a diversion channel.

[0033] According to another aspect of the present invention, there is provided a die-casting molding device for a vulcanized rubber boot, including: a die-casting molding mold according to any one of the above aspects; a high-pressure injection mechanism for pressurizing and injecting the prepared unvulcanized compound into the glue injection hole of the die-casting molding mold; a mold moving mechanism for moving each part of the die-casting molding mold according to a preset program; and a control mechanism for controlling the operations of the mold moving mechanism and the high-pressure injection mechanism.

[0034] Preferably, it further includes a heating device for heating the unvulcanized compound.

[0035] According to another aspect of the present invention, there is provided a method for manufacturing a vulcanized rubber boot by using the die-casting molding device according to any one of the above aspects, including: separating each part of the barrel body mold and moving the shoe last mold with the boot lining inside to between each part of the barrel body mold; closing each part of the barrel body mold to accommodate and position the shoe last mold at an appropriate position in each part of the barrel body mold, thereby forming a die-casting molding cavity; positioning and fixing the glue injection diversion plate on the top of the barrel body mold; injecting glue into the glue injection diversion plate and thereby injecting glue into the die-casting molding cavity between the barrel body mold and the shoe last mold through the glue injection diversion plate; and vulcanizing the injected unvulcanized compound.

[0036] Preferably, before vulcanizing the injected unvulcanized compound, the following steps are further included: closing the sole mold and injecting glue into the sole glue injection hole of the sole mold to form a boot sole; withdrawing the glue injection diversion plate from the barrel body mold and mating the sole mold with the barrel body mold; and vulcanizing the barrel body and the boot sole integrally to form an integral vulcanized rubber boot.

[0037] Preferably, it further includes: withdrawing the sole mold after vulcanization, opening the barrel body mold, and allowing the vulcanized rubber boot to exit the die-casting molding device together with the shoe last mold.

[0038] Preferably, it further includes: separating the vulcanized rubber boot from the shoe last mold through a pneumatic device.

[0039] In traditional manufacturing methods, due to the very poor fluidity of rubber (such as unvulcanized compound), if injection molding or die-casting molding is carried out, the pressure in the mold will be very high. Even when the formula of the unvulcanized compound is improved and its fluidity is somewhat enhanced, the pressure in the mold is still very large. This may even cause deflection or displacement of the shoe last mold, resulting in an ineffective die-casting cavity. Additionally, under the huge pressure, the boot lining sleeved on the shoe last will be distorted, folded, or even damaged due to extrusion. However, with the flow guide plate according to the present invention, the unvulcanized compound will be evenly guided into the die-casting cavity under pressure. Since the pressure distribution is relatively uniform, it will not cause deflection or displacement of the shoe last mold, nor will it have a great impact on the boot lining. By using the flow guide plate according to the present invention and related molds and equipment, an integrally formed one-piece vulcanized rubber boot can be manufactured, which includes a barrel body, a boot sole, and a boot lining formed by integral die-casting.

[0040] Although the embodiments according to the present invention are described as being applied to the die-casting molding process, they can equally be applicable to the injection molding process; and the protection scope of the present invention is also intended to cover such applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] The present invention will be more fully understood through the following detailed description in conjunction with the drawings, where similar elements are numbered in a similar manner, and in which:

[0042] Figure 1a-1e is a schematic diagram of the injection glue flow guide plate according to the present invention.

[0043] Figure 2 is a schematic diagram of the die-casting mold according to the present invention.

[0044] Figure 3 is another schematic diagram of the die-casting mold according to the present invention, showing the state of the left and right barrel body molds being closed.

[0045] Figure 4 is another schematic diagram of the die-casting mold according to the present invention, showing the state of all the molds being closed. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0046] The technical solutions of the present invention will be further described in detail below through embodiments in conjunction with the drawings, but the present invention is not limited to the following embodiments.

[0047] In order to solve the problem that the rubber (e.g., unvulcanized mixed rubber) has poor fluidity and is difficult to realize injection molding or die-casting of rubber boots (e.g., one-piece vulcanized rubber boots formed in one step), the inventors of the present invention have manufactured a rubber injection guide plate for guiding the injection of unvulcanized mixed rubber, and a vulcanized rubber boot using the rubber injection guide plate, and a die-casting mold, production line, and production process thereof. One-piece vulcanized rubber boots formed in one step produced using these devices or processes are also within the protection scope of the present invention.

[0048] like Figure 1a-1e As shown, according to one aspect of the present invention, there is provided a glue injection guide plate for guiding the injection of unvulcanized mixed rubber, comprising a plate body. The plate body is roughly square and made of a material suitable for manufacturing a high-pressure mold.

[0049] Figure 1a The external structure of the injection guide plate is shown. Figure 1b The internal structure diagram of the injection guide plate is shown. Figure 1c A schematic diagram of the cavity and channel of the injection guide plate is shown, and Figure 1d A schematic diagram showing the cooperation between the injection guide plate and other molds when in the installation position. Figure 1e A schematic diagram of a glue injection guide plate and a barrel mold according to another embodiment of the present invention is shown.

[0050] The plate body may be provided with: a glue injection hole for connecting with an external injection head to inject uncured mixed rubber; and an annular glue injection channel for guiding the uncured mixed rubber injected from the outside in an annular distribution. Figure 1d As shown, the uncured rubber compound discharged is introduced into other molds, such as a barrel mold for producing rubber boots.

[0051] The plate body is also provided with a distribution chamber, which is connected to the glue injection hole through the glue injection channel and connected to the annular glue injection channel through the flow guide channel. The distribution chamber is provided to facilitate the smooth export of the unvulcanized mixed rubber.

[0052] The guide channel may be one or more, preferably multiple, each of which connects the distribution chamber to the annular injection channel. Preferably, the guide channels are four and are spaced around the distribution chamber. Multiple guide channels help the unvulcanized mixed rubber material flow more smoothly from the distribution chamber to the annular channel, which helps to reduce pressure.

[0053] As shown in the figure, the glue injection hole can be arranged on one side of the plate body, and the distribution chamber is arranged in the middle part of the plate body.

[0054] like Figure 1a As shown, the annular glue injection channel is an annular outlet formed in the bottom of the plate body, and the shape surrounded by the annular outlet corresponds to the annular shape of the bottom of the vulcanized rubber boot shaft.

[0055] In some embodiments, the annular glue injection channel is formed as a continuous annular outlet. In other embodiments, the annular glue injection channel is formed as a discontinuous annular outlet. For example, there are a plurality of circular hole outlets evenly spaced on the annular glue injection channel. In these ways, the uncured compound can be injected into the barrel mold in an annular or substantially annular manner.

[0056] The above-mentioned flow guiding plate can cooperate with other molds (such as the barrel mold and the sole mold) to form a die-casting mold for vulcanized rubber boots according to another aspect of the present invention. Figure 2 The barrel mold, the shoe last mold, and the sole mold that can cooperate with the flow guiding plate are shown.

[0057] According to another embodiment of the present invention, as Figure 1e shown, an annular glue injection guiding channel is provided at the top of the barrel mold. The annular glue injection channel communicates with the inner cavity (or the following die-casting cavity) of the barrel mold through the guiding channel. The glue injection guiding plate may include a plate body, and on the plate body are provided: a glue injection hole for connecting with an external injection head to inject the uncured compound; and an annular primary shunt channel, the primary shunt channel is connected to the glue injection hole and is connected to the annular glue injection channel on the barrel mold through the guiding channel. Preferably, a distribution chamber is further provided on the plate body. The distribution chamber is connected to the glue injection hole through a glue injection channel and is connected to the primary shunt channel through the guiding channel.

[0058] In this embodiment, the uncured compound injected under pressure is shunted twice, from the glue injection hole (or the distribution chamber) to the annular primary shunt channel, and from the primary shunt channel to the annular glue injection channel at the top of the barrel mold. Through the two shunts, the uncured compound can be more evenly distributed and injected into the following die-casting cavity at a lower pressure.

[0059] The die-casting mold may include a barrel mold as Figure 2 shown, having an inner cavity corresponding to the barrel of the vulcanized rubber boot; shoe last molds 21 and 22, having a shape corresponding to the barrel of the vulcanized rubber boot and adapted to be installed in the inner cavity of the barrel mold to form a die-casting cavity between the wall of the inner cavity of the barrel mold and the outer surface of the shoe last mold; and the above-mentioned glue injection guiding plate for guiding the injection of the uncured compound, for introducing the externally injected uncured compound into the die-casting cavity in an annular distribution.

[0060] The shoe last mold 21 represents the shoe last mold before the shoe lining is put on, and the shoe last mold 22 represents the shoe last mold after the shoe lining is put on. In order to prevent the unvulcanized compound from penetrating into the interior of the shoe lining through the gaps of the fabric under high pressure during the die-casting process, the shoe lining material can be composed of, for example, two layers of fabric and a heat-resistant insulating material (such as neoprene) compounded between the two layers of fabric.

[0061] As Figure 2 shown, the barrel mold includes a left barrel mold 25 and a right barrel mold 24 that can be matched and installed with each other. The die-casting mold can also include a sole mold 23 for die-casting the sole of the rubber boot.

[0062] In other embodiments, the barrel mold can include three or more parts that can be matched and combined into a whole with each other. For example, the barrel mold includes a left barrel mold, a right barrel mold, and a rear barrel mold that can be matched and installed with each other; or the barrel mold includes a left barrel mold, a right barrel mold, and a front barrel mold that can be matched and installed with each other. Their combination method is similar to that of Figure 2 the embodiment.

[0063] The top of the barrel mold and the bottom of the injection guide plate have mating joint parts, and the injection guide plate is adapted to be clamped to the top of the barrel mold through the joint parts. For example, Figure 2 the protruding blocks around the top of the left barrel mold and the right barrel mold in, and the recessed part at the bottom of the guide plate in Figure 1 can be matched with each other, so that the guide plate and the barrel mold can be accurately positioned with each other.

[0064] Figure 3 shows the guide plate to be positioned on the barrel mold for clamping, Figure 4 shows the sole mold, the guide plate, and the barrel mold being matched with each other to form an integral mold.

[0065] As shown in the figure, the sole mold has a sole injection hole and a sole cavity corresponding to the shape of the sole of the vulcanized rubber boot for die-casting the sole of the vulcanized rubber boot. The sole mold has a sole joint part and is adapted to be clamped to the top of the barrel mold and the top of the injection guide plate through the sole joint part. As Figure 3 shown, the sole joint part is, for example, a recessed part corresponding to both the protruding block at the top of the barrel mold and the protruding block at the top of the guide plate, so that it can be matched and combined with the barrel mold or the guide plate as needed.

[0066] The injection guide plate of the die-casting mold can have any features described in connection with Figure 1a-1d herein, which will not be elaborated herein.

[0067] According to another aspect of the present invention, there is provided a die-casting forming device for vulcanized rubber boots, comprising: the above-mentioned die-casting forming die; a high-pressure injection mechanism for pressurizing and injecting the prepared unvulcanized compound into the glue injection hole of the die-casting forming die; a die moving mechanism for moving each part of the die-casting forming die according to a preset program; and a control mechanism for controlling the operations of the die moving mechanism and the high-pressure injection mechanism.

[0068] The die-casting forming device may further include a heating device for heating the unvulcanized compound.

[0069] The operation of the die-casting forming device according to the present invention can be referred to the description of the following manufacturing process or method.

[0070] According to another aspect of the present invention, there is provided a method for manufacturing vulcanized rubber boots by using the above-mentioned die-casting forming device. The method may include the following steps:

[0071] 1. Separate the left barrel mold 25 and the right barrel mold 24, and move the shoe last mold 22 with the boot lining thereon to between the left barrel mold 25 and the right barrel mold 24;

[0072] 2. Close the left barrel mold 25 and the right barrel mold 24 to accommodate and position the shoe last mold 22 with the boot lining thereon at an appropriate position in the left barrel mold 25 and the right barrel mold 24, thereby forming a die-casting cavity;

[0073] 3. Position and fix the glue injection deflector on the top of the barrel mold;

[0074] 4. Inject glue into the glue injection deflector, and thereby inject glue into the die-casting cavity between the barrel mold and the shoe last mold through the annular glue injection channel of the glue injection deflector;

[0075] 5. Close the sole mold, and inject glue into the sole glue injection hole of the sole mold to form a boot sole;

[0076] 6. Withdraw the glue injection deflector from the barrel mold, and combine the sole mold with the barrel mold;

[0077] 7. Vulcanize the barrel and the sole integrally to form an integral vulcanized rubber boot.

[0078] In some embodiments, if it is necessary to manufacture the barrel of the one-piece vulcanized rubber boot in one molding, the injected unvulcanized compound may be vulcanized after step 4. The sole can be integrated with the barrel in other ways.

[0079] In the above process, the die-casting cavity is formed by the distance between the inner surface of the barrel mold and the outer surface of the shoe lining on the shoe last mold; it can be positioned by the square positioning block at the lower part of the shoe last mold and the corresponding positioning features of the barrel mold, or by other relevant positioning features on the die-casting equipment.

[0080] After forming the one-piece vulcanized rubber boot, the following steps may further be included:

[0081] 8. After vulcanization, remove the sole mold, open the barrel mold, and withdraw the vulcanized rubber boot together with the shoe last mold from the die-casting equipment; and

[0082] 9. Detach the vulcanized rubber boot from the shoe last mold by means of a pneumatic device.

[0083] According to another aspect of the present invention, there is provided a one-piece vulcanized rubber boot formed in one step, including a barrel body, a sole, and a shoe lining integrally die-cast. The one-piece vulcanized rubber boot is made by the above method.

[0084] The mold and manufacturing method according to the present invention are not limited to manufacturing vulcanized rubber boots. In fact, the inventors of the present invention have found in further research that the mold and manufacturing method according to the present invention can also be used to manufacture other rubber shoes, and also have the advantage of being formed in one step.

[0085] The embodiments of the present invention are not limited to those described in the above embodiments. Without departing from the spirit and scope of the present invention, those of ordinary skill in the art can make various changes and improvements in form and details, and all of these are considered to fall within the protection scope of the present invention.

Claims

1. A die-casting mold for vulcanized rubber boots, characterized in that, Comprising: A barrel body mold having an inner cavity corresponding to the barrel body of the vulcanized rubber boot; A shoe last mold having a shape corresponding to the barrel body of the vulcanized rubber boot and adapted to be installed in the inner cavity of the barrel body mold to form a die-casting cavity between the wall of the inner cavity of the barrel body mold and the outer surface of the shoe last mold; And A rubber injection deflector adapted to be installed on the barrel body mold for guiding the injection of unvulcanized compound, including a plate body, on which are provided: a rubber injection hole for connecting with an external injection head to inject unvulcanized compound; and an annular rubber injection channel for guiding the externally injected unvulcanized compound into the die-casting cavity in an annular distribution; The plate body is further provided with a distribution chamber, the distribution chamber is connected to the rubber injection hole through a rubber injection channel and is connected to the annular rubber injection channel through a diversion channel; The rubber injection hole is provided on one side surface of the plate body, and the distribution chamber is provided inside the middle part of the plate body; The annular rubber injection channel is an annular outlet formed in the bottom of the plate body.

2. The die-casting mold according to claim 1, wherein The barrel body mold includes a left barrel body mold and a right barrel body mold that can be mutually and fittingly installed.

3. The die-casting mold according to claim 1, characterized in that, The barrel body mold includes a left barrel body mold, a right barrel body mold and a rear barrel body mold that can be mutually and fittingly installed.

4. The die-casting mold according to claim 1, wherein The barrel body mold includes a left barrel body mold, a right barrel body mold and a front barrel body mold that can be mutually and fittingly installed.

5. The die-casting mold according to any one of claims 1-4, characterized in that, The top of the barrel body mold and the bottom of the rubber injection deflector have mutually matching joint parts, and the rubber injection deflector is adapted to be clamped to the top of the barrel body mold through the joint parts.

6. The die-casting mold according to any one of claims 1-4, characterized in that Further comprising: A sole mold having a sole rubber injection hole and a sole cavity corresponding to the shape of the sole of the vulcanized rubber boot for die-casting the sole of the vulcanized rubber boot; the sole mold has a sole joint part and is adapted to be clamped to the top of the barrel body mold and the top of the rubber injection deflector through the sole joint part.

7. The die-casting mold according to claim 1, wherein, The diversion channels are multiple, and each diversion channel connects the distribution chamber to the annular rubber injection channel.

8. The die-casting mold according to claim 7, wherein The number of the diversion channels is 4, and they are spaced around the distribution chamber.

9. The die-casting mold according to any one of claims 1-4, characterized in that, The shape enclosed by the annular outlet corresponds to the annular shape of the bottom of the barrel body of the vulcanized rubber boot.

10. The die-casting mold according to claim 9, characterized in that, The annular rubber injection channel is formed as a continuous annular outlet.

11. The die-casting mold according to claim 9, characterized in that, The annular rubber injection channel is formed as a discontinuous annular outlet.

12. The die-casting mold according to claim 11, characterized in that, The annular rubber injection channel has a plurality of circular hole outlets evenly spaced thereon.

13. A die-casting mold for vulcanized rubber boots, characterized in that, Comprising: A barrel body mold having an inner cavity corresponding to the barrel body of the vulcanized rubber boot, and an annular rubber injection diversion channel is provided at the top of the barrel body mold, and the annular rubber injection channel is communicated with the inner cavity through a diversion channel; A shoe last mold having a shape corresponding to the barrel body of the vulcanized rubber boot and adapted to be installed in the inner cavity of the barrel body mold to form a die-casting cavity between the wall of the inner cavity of the barrel body mold and the outer surface of the shoe last mold; And A rubber injection deflector adapted to be installed on the barrel body mold for guiding the injection of unvulcanized compound, including a plate body, on which are provided: a rubber injection hole for connecting with an external injection head to inject unvulcanized compound; and an annular primary diversion channel, the primary diversion channel is connected to the rubber injection hole and is connected to the annular rubber injection channel on the barrel body mold through a diversion channel; The top of the barrel body mold and the bottom of the glue injection diversion plate have mating joint parts, and the glue injection diversion plate is adapted to be clamped to the top of the barrel body mold through the joint parts; The sole mold has a sole glue injection hole and a sole cavity corresponding to the shape of the sole of the vulcanized rubber boot, and is used for die-casting the sole of the vulcanized rubber boot; the sole mold has a sole joint part and is adapted to be clamped to the top of the barrel body mold and the top of the glue injection diversion plate through the sole joint part; The plate body is further provided with a distribution chamber, and the distribution chamber is connected to the glue injection hole through a glue injection channel and is connected to the primary shunt channel through a diversion channel.

14. The die-casting mold according to claim 13, wherein, The barrel body mold includes a left barrel body mold and a right barrel body mold that can be matingly installed with each other.

15. The die-casting mold according to claim 13, characterized in that, The barrel body mold includes a left barrel body mold, a right barrel body mold and a rear barrel body mold that can be matingly installed with each other.

16. The die-casting mold according to claim 13, wherein, The barrel body mold includes a left barrel body mold, a right barrel body mold and a front barrel body mold that can be matingly installed with each other.

17. A die-casting forming device for vulcanized rubber boots, characterized in that, Comprising: The die-casting mold according to any one of claims 1-16; A high-pressure injection mechanism for pressurizing and injecting the prepared unvulcanized compound into the glue injection hole of the die-casting mold; A mold moving mechanism for moving each part of the die-casting mold according to a preset program; And A control mechanism for controlling the operations of the mold moving mechanism and the high-pressure injection mechanism.

18. The die-casting forming device according to claim 17, characterized in that, It further includes a heating device for heating the unvulcanized compound.

19. A method for manufacturing a vulcanized rubber boot using the die-casting molding device according to claim 17 or 18, characterized in that, Comprising: Separating each part of the barrel body mold and moving the shoe last mold with the boot lining on it between each part of the barrel body mold; Closing each part of the barrel body mold to accommodate and position the shoe last mold at an appropriate position among each part of the barrel body mold, thereby forming a die-casting cavity; Positioning and fixing the glue injection diversion plate on the top of the barrel body mold; Injecting glue into the glue injection diversion plate and thereby injecting glue into the die-casting cavity between the barrel body mold and the shoe last mold through the glue injection diversion plate; and Vulcanizing the injected unvulcanized compound.

20. The method according to claim 19, characterized in that, Before vulcanizing the injected unvulcanized compound, the following steps are further included: closing the sole mold and injecting glue into the sole glue injection hole of the sole mold to form a boot sole; withdrawing the glue injection diversion plate from the barrel body mold and mating the sole mold with the barrel body mold; Vulcanizing the barrel body and the boot sole integrally to form an integral vulcanized rubber boot.

21. The method according to claim 20, wherein It further includes: After vulcanization, withdrawing the sole mold, opening the barrel body mold, and enabling the vulcanized rubber boot to exit the die-casting equipment together with the shoe last mold.

22. The method according to claim 21, wherein It further includes: Detaching the vulcanized rubber boot from the shoe last mold through a pneumatic device.

Images