CN108673919B - Shoe forming device, method and mould thereof - Google Patents

Shoe forming device, method and mould thereof Download PDF

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Publication number
CN108673919B
CN108673919B CN201810457471.3A CN201810457471A CN108673919B CN 108673919 B CN108673919 B CN 108673919B CN 201810457471 A CN201810457471 A CN 201810457471A CN 108673919 B CN108673919 B CN 108673919B
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China
Prior art keywords
mold
shoe body
shoe
die
sole
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CN108673919A (en
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曾家铭
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Guangzhou Jingcheng Rubber & Plastic Products Co ltd
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Guangzhou Jingcheng Rubber & Plastic Products Co ltd
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Priority to CN201810457471.3A priority Critical patent/CN108673919B/en
Priority to PCT/CN2018/089385 priority patent/WO2019218399A1/en
Publication of CN108673919A publication Critical patent/CN108673919A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29DPRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D35/00Producing footwear
    • B29D35/02Producing footwear made in one piece using a moulding technique, e.g. by injection moulding or casting
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29DPRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D35/00Producing footwear
    • B29D35/0009Producing footwear by injection moulding; Apparatus therefor
    • B29D35/0018Moulds

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

The invention relates to a device, a method and a mould for forming shoes. The combined external mold comprises a sole external mold, a shoe body external mold and a shoe top external mold. The outer sole mold, the outer body mold and the outer top mold enclose a closed cavity. The combined outer mold is provided with a feeding channel communicated with the cavity. The shaping centre form sets up inside the cavity, and sets up in order to form shoes body shaping space between shaping centre form lateral wall and the cavity inside wall interval. The forming inner die comprises a first inner die and a second inner die. The first inner die is connected with the shoe top outer die, and the outer diameter of the first inner die is gradually reduced in the direction from the shoe top outer die to the shoe sole outer die. The second inner die is separably arranged between the first inner die and the sole outer die, and the outer diameter of the second inner die is gradually increased in the direction from the shoe top outer die to the sole outer die. The shoe forming die can avoid the bad phenomenon that the shoe body is damaged by extrusion during the die opening operation.

Description

Shoe forming device, method and mould thereof
Technical Field
The invention relates to the technical field of shoe processing, in particular to a shoe forming device, a method and a mold thereof.
Background
The traditional shoe forming device comprises an inner mold and an outer mold matched with the inner mold. An interval is left between the inner mold and the outer mold to form a shoe body forming space. And injecting the rubber material into the shoe body forming space for forming, and then performing die opening and demoulding operations to obtain the shoe body. However, when the conventional footwear forming apparatus is used to produce boots, since the shaft of the boot generally fits the calf, the diameter of the shaft gradually decreases from the opening of the shaft to the sole, and the shaft is easily damaged by the footwear forming apparatus during the mold opening operation of the footwear body, resulting in low product quality.
Disclosure of Invention
Accordingly, there is a need to overcome the drawbacks of the prior art and to provide a shoe molding apparatus, method and mold thereof, which can avoid the undesirable phenomenon of damaging the shoe body by squeezing during the mold opening operation.
The technical scheme is as follows: a footwear forming mold, comprising: the combined outer die comprises a sole outer die, a shoe body outer die and a shoe top outer die, the sole outer die is detachably arranged below the shoe body outer die, the shoe body outer die is detachably arranged below the shoe top outer die, the sole outer die, the shoe body outer die and the shoe top outer die enclose a closed cavity, and the combined outer die is provided with a feeding channel communicated with the cavity; and a forming internal mold, the forming internal mold is arranged inside the cavity, and the forming internal mold outer side wall and the interval between the cavity inner side walls are arranged to form a shoe body forming space, the forming internal mold comprises a first internal mold and a second internal mold, the first internal mold is connected with the shoe top external mold, the outer diameter of the first internal mold is in the shoe top external mold to gradually decrease in the direction of the sole external mold, the second internal mold is separably arranged between the first internal mold and the sole external mold, the outer diameter of the second internal mold is in the shoe top external mold to gradually increase in the direction of the sole external mold, the outer side wall of the first internal mold is used for adapting to the inner side wall of the boot cylinder of the shoe tool to be processed, and the outer side wall of the second internal mold is used for adapting to the inner side wall of the other positions of the shoe tool to be processed.
The shoe forming device comprises the shoe forming die and further comprises: the injection molding machine comprises a rubber material injection mechanism, and the rubber material injection mechanism is used for injecting rubber materials into the feeding channel; and the heating mechanism is used for heating the combined outer die.
A method for forming shoes adopts the shoe forming device, and comprises the following steps:
enclosing the sole outer mold, the shoe body outer mold and the shoe top outer mold into a closed cavity, and enabling the forming inner mold to be located in the cavity and matched with the combined outer mold to form a shoe body forming space;
injecting preheated rubber into the shoe body forming space through the feeding channel by a rubber injection mechanism of an injection molding machine, and heating the combined outer mold by the heating mechanism;
after the shoe body in the shoe body forming space is subjected to hot vulcanization forming, the outer sole mold is removed, the first inner mold is kept still, and the outer shoe body mold, the second inner mold and the shoe body move downwards together to separate the shoe body from the first inner mold;
after the shoe body is separated from the first inner die, keeping the shoe body outer die still, driving the second inner die and the shoe body to move downwards together, and separating the second inner die and the shoe body from the shoe body outer die;
and after the shoe body is separated from the shoe body outer mold, the shoe body is separated from the second inner mold.
According to the device, the method and the die for forming the shoe tool, after the rubber material is injected into the shoe body forming space through the feeding channel and is thermally vulcanized to form the shoe body, the forming inner die is divided into the first inner die and the second inner die which can be separated, so that the outer die of the sole can be removed firstly, the first inner die is fixed, and the outer die of the shoe body, the second inner die and the shoe body move downwards together to separate the shoe body from the first inner die; then the outer mold of the shoe body is not moved, and the second inner mold and the shoe body are continuously driven to move downwards together, so that the second inner mold and the shoe body are separated from the outer mold of the shoe body; after the shoe body is separated from the outer mold of the shoe body, the shoe body is completely exposed, and the shoe body is separated from the second inner mold. In this way, the outer diameter of the first inner die is gradually reduced in the direction from the shoe top outer die to the shoe sole outer die, so that the shoe body cannot be damaged in the process of downward separation relative to the first inner die, and similarly, the outer diameter of the second inner die is gradually increased in the direction from the shoe top outer die to the shoe sole outer die, so that the shoe body cannot be damaged in the process of downward separation relative to the shoe body outer die, namely, the bad phenomenon that the shoe body is damaged by extrusion in the die opening operation can be avoided. In addition, after the die sinking operation, the shoe body outer die and the forming inner die are separated from each other, so that the cleaning operation of the inner side wall of the shoe body outer die can be conveniently carried out.
Furthermore, more than one air flow channel is arranged on the second inner die, and the air flow channel extends from the side, in contact with the first inner die, of the second inner die to the side, in contact with the outer die of the sole, of the second inner die.
Further, a one-way valve is arranged in the airflow channel.
Further, the first inner die comprises a main body block and more than one insert arranged outside the main body block, and the outer side wall of the insert is adapted to the inner side wall of the boot leg.
Furthermore, the shoe forming device also comprises a first driving mechanism, a second driving mechanism and a third driving mechanism; the shoe top outer mold and the first inner mold are both provided with movable holes, and a driving rod of the first driving mechanism penetrates through the movable holes to be connected with the second inner mold; the driving rod of the second driving mechanism is connected with the shoe body outer mold; and the driving rod of the third driving mechanism is connected with the outer die of the sole.
Further, the driving rod of the first driving mechanism is detachably connected with the second inner die.
Furthermore, the shoe forming device also comprises a partition board, and the shoe body forming space comprises a sole forming space and a shoe body forming space; the isolating plate is movably arranged between the shoe body outer die and the sole outer die and used for isolating the sole forming space and the shoe body forming space.
Furthermore, the shoe forming device also comprises a fourth driving mechanism, and the fourth driving mechanism is connected with the isolation plate; and the isolating plate is provided with a groove which is matched with the bottom of the second inner die.
Drawings
Fig. 1 is a schematic view of a structure of a shoe molding apparatus according to an embodiment of the present invention when closing a mold;
FIG. 2 is a first schematic view illustrating an operating state of the apparatus for forming footwear according to an embodiment of the present invention;
FIG. 3 is a second schematic view of the working status of the apparatus for forming footwear according to an embodiment of the present invention;
fig. 4 is a third schematic view of the working state of the footwear forming device according to an embodiment of the present invention.
Reference numerals:
11. the shoe sole outer mold 12, the shoe body outer mold 13, the shoe top outer mold 14, the material inlet channel 21, the first inner mold 211, the main body block 212, the insert block 213, the movable hole 22, the second inner mold 30, the shoe body forming space 41, the first driving mechanism 42, the second driving mechanism 43, the third driving mechanism 44, the fourth driving mechanism 50, the isolation plate 51, the groove 60 and the preheating pipe.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.
In the description of the present invention, it is to be understood that the terms "first", "second" and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the description of the present invention, it should be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly connected" to another element, there are no intervening elements present.
In one embodiment, referring to fig. 1 and 2, a footwear forming mold includes: combined external molds (11, 12, 13) and forming internal molds (21, 22). The combined external mold comprises a sole external mold 11, a body external mold 12 and a top external mold 13. The outsole outer mold 11 is detachably disposed below the body outer mold 12, and the body outer mold 12 is detachably disposed below the top outer mold 13. The sole outer mold 11, the body outer mold 12 and the top outer mold 13 enclose a closed cavity. The combined outer die is provided with a feeding channel 14 communicated with the cavity. The shaping centre form sets up inside the cavity, just shaping centre form lateral wall with interval sets up in order to form shoes body shaping space 30 between the cavity inside wall. The forming inner die comprises a first inner die 21 and a second inner die 22. The first inner die 21 is connected with the shoe top outer die 13, and the outer diameter of the first inner die 21 is gradually reduced in the direction from the shoe top outer die 13 to the sole outer die 11. The second inner mold 22 is detachably disposed between the first inner mold 21 and the outer mold 11 for sole, and the outer diameter of the second inner mold 22 gradually increases in the direction from the outer mold for top of shoe 13 to the outer mold for sole 11.
Referring to fig. 3 and 4 together, after the rubber compound is injected into the shoe body forming space 30 through the material inlet channel 14 and is thermally vulcanized to form the shoe body, since the forming inner mold is divided into the first inner mold 21 and the second inner mold 22 which can be separated, the outer mold 11 of the sole can be removed first, and the first inner mold 21 is stationary, the outer mold 12 of the shoe body, the second inner mold 22 and the shoe body move downward together, so that the shoe body is separated from the first inner mold 21; then the outer mold 12 of the shoe body is still, the second inner mold 22 is continuously driven to move downwards together with the shoe body, so that the shoe body is separated from the outer mold 12 of the shoe body; after the shoe body is separated from the outer mold 12 of the shoe body, the shoe body is completely exposed, and the shoe body is separated from the second inner mold 22. In this way, the outer diameter of the first inner mold 21 is gradually decreased in the direction from the top outer mold 13 to the bottom outer mold 11, so that the shoe body is not damaged during the downward separation of the shoe body from the first inner mold 21, and similarly, the outer diameter of the second inner mold 22 is gradually increased in the direction from the top outer mold 13 to the bottom outer mold 11, so that the shoe body is not damaged during the downward separation of the shoe body from the body outer mold 12, i.e., the bad phenomenon that the shoe body is damaged by extrusion during the mold opening operation can be avoided. In addition, after the mold opening operation, the shoe body outer mold 12 and the forming inner mold are separated from each other, so that the cleaning operation of the inner side wall of the shoe body outer mold 12 can be conveniently carried out.
Wherein, the to-be-processed footwear comprises a sole, an upper and a bootleg which are connected in sequence. The bootleg generally simulates the design of the human shank structure, so that the outer diameter of the bootleg gradually becomes smaller from the opening part of the bootleg to the sole. Further, the outer sidewall of the first inner mold 21 is adapted to the inner sidewall of the bootleg of the footwear to be processed, and the outer sidewall of the second inner mold 22 is adapted to the inner sidewall of the remaining portion of the footwear to be processed. Therefore, after the shoe body is manufactured, the bootleg can be separated from the first inner die 21 firstly, and then the shoe body is separated from the shoe body outer die 12, so that the phenomenon that the bootleg is mutually extruded and damaged by the combined outer die and the forming inner die during the die opening operation can be avoided.
In one embodiment, more than one air flow channel is provided on the second inner mold 22. The air flow passage extends from the side of the second inner mold 22 contacting the first inner mold 21 to the side of the second inner mold 22 contacting the outer mold 11 for footwear. And a one-way valve is arranged in the airflow channel. In this way, before the shoe body is separated from the second inner mold 22, the air blowing device is used to blow air into the shoe body from the air flow channel, so that a gap is formed between the shoe body and the second inner mold 22, which facilitates the separation of the shoe body from the second inner mold 22. In addition, the one-way valve can prevent the rubber material from flowing into the air flow channel in the material injection process to cause the blockage of the air flow channel.
Further, the first inner die 21 includes a main body block 211 and one or more inserts 212 disposed outside the main body block 211. The outer sidewall of the insert 212 is adapted to the inner sidewall of the bootleg. Thus, the shape of the insert 212 is separately machined and adjusted, so that the outer side wall of the insert 212 is adapted to the inner side wall of the boot leg, the first inner die 21 can be adapted to the shape of the boot leg, the machining is convenient, and the material waste can be avoided.
In one embodiment, referring to fig. 1, a footwear forming apparatus includes the footwear forming mold, and further includes: an injection molding machine and a heating mechanism. The injection molding machine comprises a sizing material injection mechanism. The glue injection mechanism is used for injecting glue into the feeding channel 14. The heating mechanism is used for heating the combined outer die.
The shoe forming device comprises the shoe forming mold, so that the technical effect same as that of the shoe forming mold is achieved, and the description is omitted.
In addition, the shoe forming device further comprises a first driving mechanism 41, a second driving mechanism 42 and a third driving mechanism 43. The shoe top outer mold 13 and the first inner mold 21 are both provided with a movable hole 213, and the driving rod of the first driving mechanism 41 passes through the movable hole 213 to be connected with the second inner mold 22. The driving rod of the second driving mechanism 42 is connected with the outer mold 12 of the shoe body. The driving rod of the third driving mechanism 43 is connected with the outer sole mold 11. Specifically, the first driving mechanism 41, the second driving mechanism 42, and the third driving mechanism 43 may be cylinder driven, hydraulic cylinder driven, or motor screw driven.
In this way, the second inner mold 22 is driven to move up and down by the first driving mechanism 41, the body outer mold 12 is driven to move up and down by the second driving mechanism 42, and the sole outer mold 11 is driven to move up and down by the third driving mechanism 43, so that the degree of automation is high.
Further, the driving rod of the first driving mechanism 41 is detachably connected to the second inner mold 22. Thus, when the shoe body is completely exposed after the shoe body is separated from the outer shoe body mold 12, the second inner mold 22 can be detached, and then the shoe body on the second inner mold 22 is detached, meanwhile, the second inner mold 22 for standby can be installed on the driving rod of the first driving mechanism 41, and the shoe body molding operation can be continued after the second inner mold 22 for standby is installed, so that the working efficiency is greatly improved.
Generally, the size used to make the base section is generally different from the size of the sole. Due to the needs of some functional footwear, the sole is often required to have better cushioning; and due to aesthetic requirements, the colors of the sole and the body are often required to be distinguished. Further, the footwear molding apparatus further includes a partition plate 50. The shoe body forming space 30 includes a sole forming space and a shoe body forming space. The isolation plate 50 is movably arranged between the shoe body outer mold 12 and the sole outer mold 11, and the isolation plate 50 is used for isolating the sole forming space from the shoe body forming space. Thus, the isolation plate 50 can isolate the shoe body forming space and the shoe sole forming space, and is convenient for manufacturing shoes with different color materials of the shoe body and the shoe sole. When the shoe body and the sole are made of the same material, the isolation plate 50 can be pulled out to form a communicated integral space in the shoe body forming space 30, so that the same shoe body rubber material is injected into the shoe body forming space 30 to manufacture the integrally formed shoe with the same material for the shoe body and the sole.
In addition, if need also need carry out the subregion to shoes body, sole separately, can put into division board 50 between shoes body shaping space and sole shaping space to distinguish a plurality of colour separation region respectively again with shoes body shaping space and sole shaping space as required, thereby can carry out the injecting glue process to each colour separation region in a flexible way, in order to obtain the shoes utensil that the function is various and pleasing to the eye degree is higher.
In order to allow the partition plate 50 to be stably inserted and withdrawn to avoid an influence on the quality of the product, the footwear molding apparatus further includes a fourth driving mechanism 44. The fourth driving mechanism 44 is connected to the partition plate 50. The fourth driving mechanism 44 drives the partition plate 50 to be drawn out from between the body molding space and the sole molding space, thereby combining the body molding space and the sole molding space.
In addition, the forming inner mold is easy to shake in the glue injection process, so that the forming shoe body has the problems of irregular shape or inconsistent thickness and the like, and when a certain position of the forming shoe body is too thin, the position is easy to damage, so that the service life of the product is too short. Further, a groove 51 corresponding to the bottom of the second inner mold 22 is formed on the isolation plate 50. So, when division board 50 is when isolation state, division board 50 and shaping centre form contact, recess 51 and shaping centre form chucking cooperation on the division board 50 to can play the fixed effect of chucking to the shaping centre form, with the shape that keeps shoes body shaping space.
Furthermore, the shoe forming device also comprises a bracket. The injection molding machine is arranged on the bracket. The heating mechanism includes an upper heating plate and/or a lower heating plate. The upper heating plate is connected with the shoe top outer mold 13, and the lower heating plate is connected with the shoe sole outer mold 11. So, make forming die through last hot plate and/or hot plate down heat up through heating in the time of predetermineeing, reach the purpose of preheating to follow-up manufacturing procedure's smooth going on of being convenient for. In addition, after the glue is injected into the shoe body forming space 30, the upper heating plate and/or the lower heating plate heat the forming mold for a predetermined time, for example, 10 minutes, so that the glue in the shoe body forming space 30 can be hot-vulcanized and formed to obtain the shoe body.
Specifically, the sizing material injection mechanism is communicated with the feeding channel 14 through a preheating pipe 60. Thus, before the glue injection mechanism injects the glue into the shoe body forming space 30, the glue is preheated by the preheating pipe 60, so that the glue temperature is at a preset temperature, for example, 30 ℃ to 40 ℃. Therefore, the rubber material can be ensured to be in a soft state, so that the rubber material is injected and filled in the shoe body forming space 30, and the shoe body forming quality is ensured.
In another embodiment, the heating mechanism can also be a plurality of heating pipes embedded in the combined external mold at intervals in parallel, and the combined external mold is heated by controlling the heating pipes, so that the temperature of the combined external mold can be controlled accurately and quickly, and the molding efficiency and the product quality of the shoe body can be improved.
In one embodiment, a method for forming a shoe device using the shoe device forming apparatus comprises the following steps:
step S100, enclosing the sole outer mold 11, the shoe body outer mold 12 and the shoe top outer mold 13 into a closed cavity, and enabling the forming inner mold to be located in the cavity and to be matched with the combined outer mold to form a shoe body forming space 30;
step S110, injecting preheated rubber into the shoe body forming space 30 through the material inlet channel 14 by a rubber injection mechanism of an injection molding machine, and heating the combined outer mold by the heating mechanism;
before injecting the rubber, the raw rubber and the compounding agents need to be mixed in proportion in a rubber mixing machine to obtain the required rubber material. Specifically, the injection molding machine can be preset with the glue injection amount required by each pair of finished shoes, and the injection molding machine can inject a certain amount of glue materials in the glue injection process, so that the aim of saving the cost is fulfilled.
In the glue injection step, glue injection operation is carried out after the glue materials are heated and softened in the glue material injection device. The heated rubber material has better fluidity, so that the rubber material is easier to fill each gap of the shoe body forming space 30 in the rubber injection process, thereby avoiding the rubber shortage phenomenon of finished products.
During glue injection, the shoe body glue is extruded into the feeding channel 14 through a feeding screw in the glue injection device, and the shoe body glue is injected into the shoe body forming space 30 through the feeding channel 14.
Generally, the size used to make the base section is generally different from the size of the sole. Due to the needs of some functional footwear, the sole is often required to have better cushioning; and due to aesthetic requirements, the colors of the sole and the body are often required to be distinguished.
The isolation plate 50 separates the shoe body forming space and the sole forming space, and different rubber materials can be respectively injected into the shoe body forming space and the sole forming space to distinguish the shoe body from the sole, so that the shoe has multiple possibilities in material selection.
Further, after the shoe body forming space is filled with the shoe body rubber material, the isolation plate 50 is driven to be drawn out through the fourth driving mechanism 44, and then the sole rubber material is placed in, so that the purpose of ensuring the quality of finished products is achieved.
In addition, when the shoe body and the sole need to adopt different materials or colors, the sole rubber can be manually and directly placed into the sole forming space, and the sole rubber can be the sole rubber which is cut and processed to conform to the shape.
When the shoe body and the sole can be made of the same material or color, the shoe body rubber material is continuously injected under pressure after the shoe body rubber material is filled in the shoe body forming space and the isolation plate 50 is drawn out, so that the whole shoe body forming space 30 is filled with the shoe body rubber material, and the shoe body rubber material is cured in the shoe body forming space 30 to form an integrated shoe body containing the sole and the shoe body. The shoe body and the shoe body of the formed shoe body obtained by the method are made of the shoe body forming sizing material.
Step S120, after the shoe body in the shoe body forming space 30 is subjected to hot vulcanization forming, the outer sole mold 11 is removed, the first inner mold 21 is kept still, and the outer shoe body mold 12, the second inner mold 22 and the shoe body are moved downwards together to separate the shoe body from the first inner mold 21;
step S130, after the shoe body is separated from the first inner mold 21, keeping the shoe body outer mold 12 still, driving the second inner mold 22 to move downwards together with the shoe body, and separating the second inner mold 22 together with the shoe body from the shoe body outer mold 12;
step S140, after the shoe body is separated from the outer mold 12 of the shoe body, the shoe body is separated from the second inner mold 22.
Specifically, the second inner mold 22 is provided with more than one airflow channel. The air flow passage extends from the side of the second inner mold 22 contacting the first inner mold 21 to the side of the second inner mold 22 contacting the outer mold 11 for footwear. And a one-way valve is arranged in the airflow channel. In this way, before the shoe body is separated from the second inner mold 22, the air blowing device is used to blow air into the shoe body from the air flow channel, so that a gap is formed between the shoe body and the second inner mold 22, which facilitates the separation of the shoe body from the second inner mold 22. In addition, the one-way valve can prevent the rubber material from flowing into the air flow channel in the material injection process to cause the blockage of the air flow channel.
In the above-mentioned shoe forming method, since the shoe forming device is adopted, the technical effects are brought by the shoe forming device, and are not repeated.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. A footwear forming mold, comprising:
the combined outer die comprises a sole outer die, a shoe body outer die and a shoe top outer die, the sole outer die is detachably arranged below the shoe body outer die, the shoe body outer die is detachably arranged below the shoe top outer die, the sole outer die, the shoe body outer die and the shoe top outer die enclose a closed cavity, and the combined outer die is provided with a feeding channel communicated with the cavity; and
the shaping centre form, the shaping centre form sets up inside the cavity, just shaping centre form lateral wall with the interval sets up in order to form shoes body shaping space between the cavity inside wall, the shaping centre form includes first centre form and second centre form, first centre form with the top of a shoe external mold links to each other, the external diameter of first centre form is in the top of a shoe external mold extremely diminish in the direction of sole external mold gradually, the detachable setting of second centre form is in first centre form with between the sole external mold, the external diameter of second centre form is in the top of a shoe external mold extremely grow gradually in the direction of sole external mold, the lateral wall of first centre form is used for suiting with the inside wall of the leg of a boot of waiting to process the shoes utensil, the lateral wall of second centre form be used for with the inside wall of the other positions of waiting to process the shoes utensil suits.
2. The footwear forming mold according to claim 1, wherein the second inner mold has one or more air flow passages extending from a side of the second inner mold contacting the first inner mold to a side of the second inner mold contacting the outer mold of the sole.
3. The footwear forming mold of claim 2, wherein a one-way valve is disposed in the air flow passage.
4. The footwear forming mold according to any one of claims 1 to 3, wherein the first inner mold comprises a main body block and one or more inserts disposed outside the main body block, and outer side walls of the inserts are adapted to inner side walls of the bootleg.
5. An apparatus for forming footwear, comprising the footwear forming mold according to any one of claims 1 to 4, further comprising:
the injection molding machine comprises a rubber material injection mechanism, and the rubber material injection mechanism is used for injecting rubber materials into the feeding channel; and
and the heating mechanism is used for heating the combined outer die.
6. The footwear forming apparatus according to claim 5, further comprising a first driving mechanism, a second driving mechanism and a third driving mechanism; the shoe top outer mold and the first inner mold are both provided with movable holes, and a driving rod of the first driving mechanism penetrates through the movable holes to be connected with the second inner mold;
the driving rod of the second driving mechanism is connected with the shoe body outer mold;
and the driving rod of the third driving mechanism is connected with the outer die of the sole.
7. The footwear forming apparatus according to claim 6, wherein the driving rod of the first driving mechanism is detachably connected to the second inner mold.
8. The footwear forming apparatus according to any one of claims 5 to 7, further comprising a partition, wherein the shoe body forming space includes a sole forming space and a body forming space; the isolating plate is movably arranged between the shoe body outer die and the sole outer die and used for isolating the sole forming space and the shoe body forming space.
9. The footwear forming apparatus according to claim 8, further comprising a fourth driving mechanism, the fourth driving mechanism being connected to the partition; and the isolating plate is provided with a groove which is matched with the bottom of the second inner die.
10. A method for forming footwear, using the footwear forming apparatus according to any one of claims 5 to 9, comprising the steps of:
enclosing the sole outer mold, the shoe body outer mold and the shoe top outer mold into a closed cavity, and enabling the forming inner mold to be located in the cavity and matched with the combined outer mold to form a shoe body forming space;
injecting preheated rubber into the shoe body forming space through the feeding channel by a rubber injection mechanism of an injection molding machine, and heating the combined outer mold by the heating mechanism;
after the shoe body in the shoe body forming space is subjected to hot vulcanization forming, the outer sole mold is removed, the first inner mold is kept still, and the outer shoe body mold, the second inner mold and the shoe body move downwards together to separate the shoe body from the first inner mold;
after the shoe body is separated from the first inner die, keeping the shoe body outer die still, driving the second inner die and the shoe body to move downwards together, and separating the second inner die and the shoe body from the shoe body outer die;
and after the shoe body is separated from the shoe body outer mold, the shoe body is separated from the second inner mold.
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US20220024086A1 (en) * 2018-12-07 2022-01-27 East Rock Union Limited Rubber injection guide plate, vulcanized rubber boot and transfer molding mold, manufacturing equipment and manufacturing method thereof
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JP6844728B2 (en) * 2019-03-29 2021-03-17 ダイキン工業株式会社 Fluoropolyether group-containing compound

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CN205651605U (en) * 2016-05-03 2016-10-19 李建华 Multilayer upper of a shoe injection moulding mould
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