CN113858526B - Shoemaking mould - Google Patents
Shoemaking mould Download PDFInfo
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- CN113858526B CN113858526B CN202111160352.XA CN202111160352A CN113858526B CN 113858526 B CN113858526 B CN 113858526B CN 202111160352 A CN202111160352 A CN 202111160352A CN 113858526 B CN113858526 B CN 113858526B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/58—Moulds
- B29C44/588—Moulds with means for venting, e.g. releasing foaming gas
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/3415—Heating or cooling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/3415—Heating or cooling
- B29C44/3426—Heating by introducing steam in the mould
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/36—Feeding the material to be shaped
- B29C44/38—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length
- B29C44/42—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length using pressure difference, e.g. by injection or by vacuum
- B29C44/428—Mould constructions; Mould supporting equipment
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/48—Wearing apparel
- B29L2031/50—Footwear, e.g. shoes or parts thereof
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention relates to a shoemaking mould, which comprises an upper mould, a lower mould, a mould opening device, a cooling device and a heat preservation device, wherein the upper mould is provided with an upper mould cavity, the lower mould is provided with a lower mould cavity, the upper mould is provided with a material injecting channel and an air inlet channel, the upper mould and the lower mould are respectively provided with an air outlet for discharging air, the cooling device comprises a plurality of movable plug assemblies and a control assembly, the lower mould is provided with a cold water channel, the movable plug assemblies are communicated with the cold water channel and are controlled by the control assembly to have a communicating state and a sealing state, the mould opening device comprises a heat sensing box and a plurality of mould opening cylinders, the heat sensing box is arranged on the lower mould, the air inlet channel is communicated with the heat sensing box, two ends of each mould opening cylinder are respectively hinged on the upper mould and the lower mould, the heat preservation device comprises a heat preservation box and a gas supplementing piston, the heat preservation box is communicated with the air inlet channel, a gas supplementing spring is arranged in the heat preservation box, the action direction of the gas supplementing spring enables the gas supplementing piston to compress the heat preservation box, the energy consumption is low, and the product quality is good.
Description
Technical Field
The invention relates to the technical field of shoemaking equipment, in particular to a shoemaking mould.
Background
The existing shoe mold generally comprises an upper mold, a lower mold and a mold core arranged between the upper mold and the lower mold, wherein one side edge of the mold core is hinged with the lower mold, the upper mold is hinged with the same side edge of the mold core, the upper mold is provided with a material injecting channel and an air inlet channel, the air inlet channel consists of an air inlet arranged at the top of the upper mold and a plurality of small holes communicated with the air inlet and densely distributed at the bottom of the upper mold, and the lower mold is provided with an air outlet channel.
The blowing injection molding process is that foamed material such as PVC enters a mold cavity formed between an upper mold and a lower mold through a material injection passage of the upper mold, high-pressure gas enters through an air inlet and is blown out through a plurality of small holes, and the gas in the mold cavity is discharged out of the mold cavity through an air outlet passage on the lower mold. The blowing injection molding mode can produce foaming products, but has the defects that gas can be directly discharged through an exhaust channel of the lower die after passing through the die cavity, so that the gas in the die cavity has high fluidity and no function of holding breath, foam materials such as PVC (polyvinyl chloride) are not fully foamed, materials are wasted, the foaming products have poor flexibility, steam is wasted, the heat of the steam is not fully utilized, the upper die and the lower die are generally thick due to the need of reinforcing the rigidity of the upper die and the lower die, the die opening becomes difficult, and the cooling of shoes in the die cavity also becomes difficult due to the large mass of the upper die and the lower die.
Disclosure of Invention
In order to overcome the technical defects in the prior art, the invention provides the shoe making die which is low in energy consumption and good in product quality.
The technical scheme adopted by the invention is as follows:
the shoe making mold comprises an upper mold, a lower mold, a mold core, a mold opening device, a cooling device and a heat preservation device, wherein the upper mold is provided with an upper mold cavity, the lower mold is provided with a lower mold cavity, the mold core is arranged between the upper mold and the lower mold, the rear side edge of the mold core is hinged with the lower mold, the rear side edge of the upper mold is hinged with the rear side edge of the mold core, the upper mold is provided with a material injecting channel and an air inlet channel, and the upper mold and the lower mold are respectively provided with an air outlet for discharging air;
the cooling device comprises a plurality of movable plug assemblies and a control assembly, wherein the lower die is provided with a cold water channel, the movable plug assemblies are communicated with the cold water channel and have a communicating state and a closed state, the control assembly slides along the cold water channel, the control assembly controls the movable plug assemblies to be in the communicating state after the cold water channel is filled with water, and the control assembly controls the movable plug assemblies to be in the closed state when the cold water channel is not filled with water;
the die opening device comprises a heat sensing box and a plurality of die opening cylinders, the heat sensing box is arranged on the lower die, the heat sensing box is positioned at the bottom of the cold water channel, the air inlet channel is communicated with the heat sensing box, the heat sensing box is communicated with the lower die cavity, the communication direction is that the heat sensing box is unidirectionally directed to the lower die cavity, the die opening cylinders are communicated with the heat sensing box, and two ends of the die opening cylinders are respectively hinged to the upper die and the lower die;
the heat preservation device comprises a heat preservation box and an air supplementing piston, the heat preservation box is arranged on the lower die, the heat preservation box comprises an air storage cavity and a spring cavity, the air storage cavity is communicated with an air inlet channel, the air storage cavity and the spring cavity are divided through the air supplementing piston, an air supplementing spring is arranged in the spring cavity, and the acting direction of the air supplementing spring enables the air supplementing piston to compress the air storage cavity.
Preferably: the control assembly is provided with a plurality of pushing parts matched with the corresponding movable plug assemblies, the top of each pushing part is provided with a control inclined plane, and the control assembly is pushed to slide along the cold water channel after the cold water channel is filled with water, so that the control inclined planes push the corresponding movable plug assemblies to switch between a communicating state and a closed state.
Preferably: the control assembly comprises a reset spring and a control rod, the pushing part is arranged on the control rod, the control rod slides along the cold water channel, the reset spring is arranged at the tail end of the cold water channel, and the action direction of the reset spring enables the movable plug assembly to be in a closed state.
Preferably: each movable plug assembly comprises a closing-in cylinder and sealing rods, the lower die is provided with a plurality of countersunk head mounting holes, each closing-in cylinder is embedded into the corresponding countersunk head mounting hole, the upper end of each closing-in cylinder is provided with a conical closing-in, the sealing rods slide along the closing-in cylinder, the top of each sealing rod is provided with a sealing cone corresponding to the conical closing-in, and the bottom of each sealing rod is provided with a pushing inclined plane matched with the corresponding control inclined plane.
Preferably: the control assembly is provided with a control piston which slides along the cold water channel in a sealing way.
Preferably: the heat sensing box is provided with a shrinkage cavity and a stress application cavity, a stress application piston is further arranged in the heat sensing box, one end of the stress application piston slides along the shrinkage cavity, the other end of the stress application piston slides along the stress application cavity, and the sectional area of the stress application cavity is smaller than that of the shrinkage cavity.
Preferably: the stress application piston comprises a large end piston sliding along the contraction cavity and a small end piston sliding along the stress application cavity, the large end piston and the small end piston are connected through a stress application rod, and the contraction cavity between the large end piston and the small end piston is communicated with the atmosphere.
Preferably: the insulation can further comprises a damping cavity, the spring cavity and the damping cavity are divided through a partition plate, a damping component is installed in the damping cavity, the damping component is in transmission connection with the air supplementing piston, and the damping component provides damping in the process that the air supplementing piston compresses the air storage cavity.
Preferably: the damping assembly comprises a damping plate and a damping rod, the damping rod is fixedly arranged on the air supplementing piston and slides along the partition plate, the damping plate is rotatably arranged at one end of the damping rod, which is far away from the air supplementing piston, the damping plate extrudes the side wall of the damping cavity when moving towards the direction of the air storage cavity, and the damping plate is separated from the side wall of the damping cavity when moving towards the direction far away from the air storage cavity.
Preferably: the upper side of the damping plate is rotatably arranged at one end, far away from the air supplementing piston, of the damping rod, the length of the damping plate is larger than that of the damping cavity, and the lower side of the damping plate is closer to the air supplementing piston relative to the upper side of the damping plate.
The beneficial effects of the invention are as follows:
the upper die is provided with an upper die cavity, the lower die is provided with a lower die cavity, the die core is arranged between the upper die and the lower die, the rear side edge of the die core is hinged with the lower die, the rear side edge of the upper die is hinged with the rear side edge of the die core, the die core is used for forming a slipper-shaped cavity between the upper die and the lower die, the upper die is provided with a material injecting channel and an air inlet channel, the material injecting channel is used for injecting materials into the cavity, and the upper die and the lower die are respectively provided with an air outlet for discharging air, so as to discharge steam entering from the air inlet channel.
The cooling device comprises a plurality of movable plug assemblies and a control assembly, wherein a cold water channel is arranged on a lower die, the movable plug assemblies are communicated with the cold water channel, the movable plug assemblies are in a communicating state and a sealing state, the control assembly slides along the cold water channel, the control assembly controls the movable plug assemblies to be in the communicating state after the cold water channel is filled with water, the control assembly controls the movable plug assemblies to be in the sealing state when the cold water channel is not filled with water, cold water pushes the control assembly to act so as to drive the movable plug assemblies to be in the communicating state after the cold water channel is filled with water, the cold water enters an upper die cavity and a lower die cavity through the movable plug assemblies, rapid cooling is realized, the control assembly controls the movable plug assemblies to be in the sealing state when the cold water is not filled, the material is prevented from leaking through the movable plug assemblies when the upper die cavity and the lower die cavity are heated and pressurized, and surface defects are avoided, and the product quality is good.
The die opening device comprises a heat sensing box and a plurality of die opening cylinders, wherein the heat sensing box is arranged on the lower die, the heat sensing box is positioned at the bottom of the cold water channel, the air inlet channel is communicated with the heat sensing box, vapor is introduced into the die cavity and the heat sensing box through the air inlet channel during heating, the heat sensing box is communicated with the lower die cavity, the communication direction is the heat sensing box is unidirectional to the lower die cavity through the one-way valve, the vapor entering the heat sensing box enters the die cavity again, the vapor is discharged after the vapor is introduced and passes through the heat preservation and pressure maintaining process, the air pressure in the heat sensing box becomes the atmospheric pressure, then the vapor in the heat sensing box is cooled along with the cooling of the die, negative pressure is generated in the heat sensing box, each die opening cylinder is communicated with the heat sensing box, the two ends of each die opening cylinder are respectively hinged on the upper die and the lower die, the negative pressure in the heat sensing box drives each die opening cylinder to shrink, the upper die and the lower die are convenient to open after the cooling is finished, the energy consumption is low, and the product quality is good.
The heat preservation device comprises a heat preservation box and an air supplementing piston, the heat preservation box is arranged on the lower die, the heat preservation box comprises an air storage cavity and a spring cavity, the air storage cavity is communicated with an air inlet channel, the air storage cavity and the spring cavity are divided through the air supplementing piston, an air supplementing spring is arranged in the spring cavity, the air supplementing piston compresses the air storage cavity in the action direction of the air supplementing spring, steam enters the air storage cavity for storage, the steam in the air storage cavity is slowly supplemented into the cavity through the air storage cavity by pushing of the air supplementing spring, the steam is not required to be led to the cavity for a long time in the heat preservation process, steam resources are saved, energy consumption is reduced, energy consumption is low, and product quality is good.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention.
Fig. 2 is a schematic cross-sectional view of the lower die.
Fig. 3 is an enlarged schematic view of fig. 2 at a.
Fig. 4 is a schematic structural view of the heat preservation device.
Reference numerals illustrate:
1. an upper die; 11. an upper die cavity; 12. a material injection channel; 13. an air intake passage; 14. an exhaust port;
2. a lower die; 21. a lower die cavity; 22. a cold water channel;
3. a mold core;
4. a die opening device; 41. a thermal sensor box; 411. a water collection bottle; 412. a heat exchange plate; 413. a stress application piston; 414. a shrink chamber; 415. a stress application cavity; 42. a die opening cylinder;
5. a cooling device; 51. a movable plug assembly; 511. a closing-in cylinder; 5111. a conical closing-in; 512. a sealing rod; 5121. a sealing cone; 5122. pushing the inclined plane; 52. a control assembly; 521. a pushing part; 522. a control lever; 523. a reset spring; 524. a control piston;
6. a heat preservation device; 61. an insulation box; 611. a gas storage chamber; 612. a spring cavity; 613. a damping chamber; 614. a partition plate; 62. an air supplementing piston; 621. a sliding sleeve; 63. an air supplementing spring; 64. a damping assembly; 642. a damping rod; 643. a damping plate; 6431. damping hole.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
as shown in fig. 1-4, this embodiment provides a shoemaking mold, including an upper mold 1, a lower mold 2, a mold core 3, a mold opening device 4, a cooling device 5 and a heat preservation device 6, wherein the upper mold 1 is provided with an upper mold cavity 11, the lower mold 2 is provided with a lower mold cavity 21, the mold core 3 is arranged between the upper mold 1 and the lower mold 2, the rear side edge of the mold core 3 is hinged with the lower mold 2, the rear side edge of the upper mold 1 is hinged with the rear side edge of the mold core 3, the mold core 3 is used for forming a slipper-shaped cavity between the upper mold 1 and the lower mold 2, the upper mold 1 is provided with a material injecting channel 12 and an air inlet channel 13, the material injecting channel 12 is used for injecting materials into the cavity, and the upper mold 1 and the lower mold 2 are provided with air exhaust ports 14 for exhausting air and exhausting vapor entering from the air inlet channel 13.
The cooling device 5 comprises a plurality of movable plug assemblies 51 and a control assembly 52, a cold water channel 22 is arranged on the lower die 2, the movable plug assemblies 51 are communicated with the cold water channel 22, the movable plug assemblies 51 are in a communicating state and a closed state, the control assembly 52 slides along the cold water channel 22, the control assembly 52 controls the movable plug assemblies 51 to be in the communicating state after the cold water channel 22 is in water, the control assembly 52 controls the movable plug assemblies 51 to be in the closed state when the cold water channel 22 is not in water, cold water pushes the control assembly 52 to act after the cold water channel 22 is in water so as to drive the movable plug assemblies 51 to be converted into the communicating state from the closed state, cold water enters the upper die cavity 11 and the lower die cavity 21 through the movable plug assemblies 51, rapid cooling is realized, the control assembly 52 controls the movable plug assemblies 51 to be in the closed state when the upper die cavity 11 and the lower die cavity 21 are in water-free heating and pressurizing, and materials cannot leak through the movable plug assemblies 51 to cause surface defects of slippers.
The control assembly 52 comprises a reset spring 523 and a control rod 522, each movable plug assembly 51 comprises a closing-in cylinder 511 and a sealing rod 512, a plurality of countersunk mounting holes are formed in the lower die 2, each closing-in cylinder 511 is embedded into the corresponding countersunk mounting hole, a conical closing-in cylinder 5111 is arranged at the upper end of each closing-in cylinder 511, the sealing rod 512 slides along the closing-in cylinder 511, a sealing cone 5121 corresponding to the conical closing-in 5111 is arranged at the top of each sealing rod 512, a pushing inclined surface 5122 is arranged at the bottom of each sealing rod 512, a plurality of pushing parts 521 are arranged on the control rod 522, control inclined surfaces matched with the corresponding pushing inclined surfaces 5122 are respectively arranged at the top of each pushing part 521, the control rod 522 slides along the cold water channel 22, and the reset spring 523 is arranged at the tail end of the cold water channel 22.
After the cold water channel 22 is filled with water, the cold water pushes the pushing part 521 to slide along the cold water channel 22, so that the control inclined plane slides along the pushing inclined plane 5122, the sealing rod 512 slides downwards along the closing cylinder 511, a gap for cold water to pass through is formed between the conical closing 5111 and the sealing rod 512, and the cold water is introduced into the cavity to cool the shoe body.
After cooling, cold water is interrupted, the action direction of the reset spring 523 enables the control inclined plane to lift and push the inclined plane 5122, so that a channel between the conical closing-in 5111 and the sealing rod 512 is closed, the movable plug assembly 51 is in a closed state, the leakage of materials from the sealing rod 512 to the conical closing-in 5111 is prevented, the defect of the surface of shoes is prevented, in general, the control assembly 52 is pushed to slide along the cold water channel 22 after the cold water channel 22 is filled with water, and then the control inclined plane pushes the corresponding movable plug assembly 51 to lift and switch between a communicating state and a closed state.
The travel of the control rod 522 is equal to the diameter of the sealing rod 512, so that the control inclined surface and the pushing inclined surface 5122 are prevented from being separated due to the overlong travel of the control rod 522.
The control assembly 52 is provided with a control piston 524, the control piston 524 slides along the cold water channel 22 in a sealing way, and after the cold water channel 22 is filled with cold water, the control piston 524 is pressed to drive each pushing part 521 to slide.
The mold opening device 4 comprises a heat sensing box 41 and a plurality of mold opening air cylinders 42, wherein the heat sensing box 41 is arranged on the lower mold 2, the heat sensing box 41 is positioned at the bottom of the cold water channel 22, the air inlet channel 13 is communicated with the heat sensing box 41, the air inlet channel 13 is used for introducing steam into the cavity and the heat sensing box 41 during heating, the heat sensing box 41 is communicated with the lower cavity 21, the communication direction is that the heat sensing box 41 is unidirectional to the lower cavity 21 through a one-way valve, the steam entering the heat sensing box 41 enters the cavity again, the steam is discharged after the heat preservation and pressure maintaining process is carried out after the steam is introduced, meanwhile, the air pressure in the heat sensing box 41 becomes the atmospheric pressure, then the steam in the heat sensing box 41 is cooled along with the cooling of the mold, negative pressure is generated in the heat sensing box 41, each mold opening air cylinder 42 is communicated with the heat sensing box 41, two ends of each mold opening air cylinder 42 are respectively hinged to the upper mold 1 and the lower mold 2, and the negative pressure in the heat sensing box 41 drives each mold opening air cylinder 42 to shrink, so that the upper mold 1 and the lower mold 2 are convenient to open after the cooling is finished.
The lower side of the heat sensing box 41 is provided with a water collecting bottle 411, the water collecting bottle 411 is communicated with the heat sensing box 41, steam is led into the heat sensing box 41 to be cooled to reduce the volume and condensate, and the water collecting bottle 411 is used for collecting condensate water.
The inner side of one end, close to the cold water channel 22, of the heat sensing box 41 is provided with a plurality of heat exchange plates 412, and after the cold water channel 22 is filled with cold water, the temperature in the heat sensing box 41 is quickly reduced, and the air pressure in the heat sensing box 41 is quickened to be reduced.
The large cavity of the die opening air cylinder 42 is communicated with the heat sensing box 41 in a one-way through a one-way valve, the communication direction is directed to the heat sensing box 41 by the large cavity of the die opening air cylinder 42, and negative pressure in the heat sensing box 41 is communicated to the large cavity of the die opening air cylinder 42, so that the die opening air cylinder 42 contracts, additional power is provided for die opening, and the die opening is facilitated.
In order to increase the contraction force of the mold opening cylinder 42, the heat sensing box 41 is provided with a contraction cavity 414 and a stress application cavity 415, the heat sensing box 41 is internally provided with a stress application piston 413, one end of the stress application piston 413 slides along the contraction cavity 414, the other end of the stress application piston 413 slides along the stress application cavity 415, the sectional area of the stress application cavity 415 is smaller than that of the contraction cavity 414, when vapor in the heat sensing box 41 is cooled and contracted, the stress application piston 413 slides along the contraction cavity 414, the pressure in the stress application cavity 415 is inevitably lower than that in the contraction cavity 414 due to the fact that the sectional area of the stress application cavity 415 is smaller than that of the contraction cavity 414, and when the stress application piston 413 contracts, the stress application piston 413 drives the mold opening cylinder 42 to contract with stronger pulling force, so that the auxiliary force for mold opening is more sufficient, and mold opening is facilitated.
The stressing piston 413 comprises a large end piston sliding along the contraction cavity 414 and a small end piston sliding along the stressing cavity 415, the large end piston and the small end piston are connected through a stressing rod, the contraction cavity 414 between the large end piston and the small end piston is communicated with the atmosphere, the phenomenon that the stressing piston 413 is blocked and inconvenient to move because the cross sections of the stressing cavity 415 and the contraction cavity 414 are different is avoided, and resistance for preventing the stressing piston 413 from moving is formed between the large end piston and the small end piston when the large end piston slides along the contraction cavity 414, and if the large end piston and the small end piston are not communicated with the atmosphere.
The heat preservation device 6 comprises a heat preservation box 61 and an air supplementing piston 62, the heat preservation box 61 is arranged on the lower die 2, the heat preservation box 61 comprises an air storage cavity 611 and a spring cavity 612, the air storage cavity 611 is communicated with an air inlet channel 13, the air storage cavity 611 and the spring cavity 612 are divided by the air supplementing piston 62, an air supplementing spring 63 is arranged in the spring cavity 612, the air supplementing piston 62 compresses the air storage cavity 611 in the action direction of the air supplementing spring 63, steam enters the air storage cavity 611 through the air inlet channel 13 to be stored, the steam in the air storage cavity 611 is slowly supplemented into a cavity through pushing of the air supplementing spring 63, an external steam pipe is not needed to be used for ventilating the cavity for a long time in the heat preservation process, steam resources are saved, and energy consumption is reduced.
The heat preservation box 61 further comprises a damping cavity 613, the spring cavity 612 and the damping cavity 613 are divided by a partition plate 614, a damping component 64 is installed in the damping cavity 613, the damping component 64 is in transmission connection with the air supplementing piston 62, the damping component 64 provides damping in the process that the air supplementing piston 62 compresses the air storage cavity 611, the speed that the air supplementing piston 62 pushes steam in the air storage cavity 611 to enter the cavity is controlled, the cavity is convenient to keep warm continuously, and the heat preservation time is not enough due to the fact that the steam is released fast.
Specifically, the damping assembly 64 includes a damping plate 643 and a damping rod 642, the damping rod 642 is fixedly mounted on the air supplementing piston 62 and slides along the partition plate 614, the upper side of the damping plate 643 is rotatably mounted at one end of the damping rod 642 far away from the air supplementing piston 62, the length of the damping plate 643 is greater than that of the damping chamber 613, the lower side of the damping plate 643 is closer to the air supplementing piston 62 relative to the upper side of the damping plate 643, the arrangement of the damping plate 643 is such that air between the partition plate 614 and the damping plate 643 is compressed when the damping plate 643 moves towards the air storage chamber 611, the damping plate 643 is pushed to rotate, and the damping plate 643 is bonded to the side wall of the damping chamber 613 to form resistance force due to the fact that the length of the damping plate 643 is greater than that of the damping plate 613 is greater than that of the damping chamber 613, and when the steam pipe injects steam into the air storage chamber 611 moves towards the air storage 611, negative pressure is formed between the damping plate 643 and the partition plate 614, the damping plate 613 is further separated from the air storage 611, the resistance force is relieved, the air is prevented from being brought into the air storage chamber 611, and the resistance is prevented from being brought into the air storage chamber 611, when the damping plate 643 moves towards the air storage 611, the air storage chamber 613 is prevented from being separated from the air storage chamber 613, and the air storage chamber 643 is prevented from being pressed towards the air storage chamber 613, and the side wall 641.
The air make-up piston 62 includes a sliding sleeve 621 that slides along the spring cavity 612, the sliding sleeve 621 conforming to the spring cavity 612 to prevent deflection of the air make-up piston 62.
While the basic principles and main features of the invention and advantages of the invention have been shown and described, it will be understood by those skilled in the art that the present invention is not limited by the foregoing embodiments, which are described in the foregoing description merely illustrate the principles of the invention, and various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined in the appended claims and their equivalents.
Claims (10)
1. Shoemaking mould, its characterized in that: the mold comprises an upper mold, a lower mold, a mold core, a mold opening device, a cooling device and a heat preservation device, wherein the upper mold is provided with an upper mold cavity, the lower mold is provided with a lower mold cavity, the mold core is arranged between the upper mold and the lower mold, the rear side edge of the mold core is hinged with the lower mold, the rear side edge of the upper mold is hinged with the rear side edge of the mold core, the upper mold is provided with a material injecting channel and an air inlet channel, and the upper mold and the lower mold are respectively provided with an air outlet for discharging air;
the cooling device comprises a plurality of movable plug assemblies and a control assembly, wherein the lower die is provided with a cold water channel, the movable plug assemblies are communicated with the cold water channel and have a communicating state and a closed state, the control assembly slides along the cold water channel, the control assembly controls the movable plug assemblies to be in the communicating state after the cold water channel is filled with water, and the control assembly controls the movable plug assemblies to be in the closed state when the cold water channel is not filled with water;
the die opening device comprises a heat sensing box and a plurality of die opening cylinders, the heat sensing box is arranged on the lower die, the heat sensing box is positioned at the bottom of the cold water channel, the air inlet channel is communicated with the heat sensing box, the heat sensing box is communicated with the lower die cavity, the communication direction is that the heat sensing box is unidirectionally directed to the lower die cavity, the die opening cylinders are communicated with the heat sensing box, and two ends of the die opening cylinders are respectively hinged to the upper die and the lower die;
the heat preservation device comprises a heat preservation box and an air supplementing piston, the heat preservation box is arranged on the lower die, the heat preservation box comprises an air storage cavity and a spring cavity, the air storage cavity is communicated with an air inlet channel, the air storage cavity and the spring cavity are divided through the air supplementing piston, an air supplementing spring is arranged in the spring cavity, and the acting direction of the air supplementing spring enables the air supplementing piston to compress the air storage cavity.
2. A shoemaking mould according to claim 1, characterized in that: the control assembly is provided with a plurality of pushing parts matched with the corresponding movable plug assemblies, the top of each pushing part is provided with a control inclined plane, and the control assembly is pushed to slide along the cold water channel after the cold water channel is filled with water, so that the control inclined planes push the corresponding movable plug assemblies to switch between a communicating state and a closed state.
3. A shoemaking mould according to claim 2, characterized in that: the control assembly comprises a reset spring and a control rod, the pushing part is arranged on the control rod, the control rod slides along the cold water channel, the reset spring is arranged at the tail end of the cold water channel, and the action direction of the reset spring enables the movable plug assembly to be in a closed state.
4. A shoemaking mould according to claim 2, characterized in that: each movable plug assembly comprises a closing-in cylinder and sealing rods, the lower die is provided with a plurality of countersunk head mounting holes, each closing-in cylinder is embedded into the corresponding countersunk head mounting hole, the upper end of each closing-in cylinder is provided with a conical closing-in, the sealing rods slide along the closing-in cylinder, the top of each sealing rod is provided with a sealing cone corresponding to the conical closing-in, and the bottom of each sealing rod is provided with a pushing inclined plane matched with the corresponding control inclined plane.
5. A shoemaking mould according to claim 2, characterized in that: the control assembly is provided with a control piston which slides along the cold water channel in a sealing way.
6. A shoemaking mould according to claim 1, characterized in that: the heat sensing box is provided with a shrinkage cavity and a stress application cavity, a stress application piston is further arranged in the heat sensing box, one end of the stress application piston slides along the shrinkage cavity, the other end of the stress application piston slides along the stress application cavity, and the sectional area of the stress application cavity is smaller than that of the shrinkage cavity.
7. A shoemaking mould according to claim 6, characterized in that: the stress application piston comprises a large end piston sliding along the contraction cavity and a small end piston sliding along the stress application cavity, the large end piston and the small end piston are connected through a stress application rod, and the contraction cavity between the large end piston and the small end piston is communicated with the atmosphere.
8. A shoemaking mould according to claim 1, characterized in that: the insulation can further comprises a damping cavity, the spring cavity and the damping cavity are divided through a partition plate, a damping component is installed in the damping cavity, the damping component is in transmission connection with the air supplementing piston, and the damping component provides damping in the process that the air supplementing piston compresses the air storage cavity.
9. A shoemaking mould according to claim 8, characterized in that: the damping assembly comprises a damping plate and a damping rod, the damping rod is fixedly arranged on the air supplementing piston and slides along the partition plate, the damping plate is rotatably arranged at one end of the damping rod, which is far away from the air supplementing piston, the damping plate extrudes the side wall of the damping cavity when moving towards the direction of the air storage cavity, and the damping plate is separated from the side wall of the damping cavity when moving towards the direction far away from the air storage cavity.
10. A shoemaking mould as claimed in claim 9, wherein: the upper side of the damping plate is rotatably arranged at one end, far away from the air supplementing piston, of the damping rod, the length of the damping plate is larger than that of the damping cavity, and the lower side of the damping plate is closer to the air supplementing piston relative to the upper side of the damping plate.
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| CN202111160352.XA CN113858526B (en) | 2021-09-30 | 2021-09-30 | Shoemaking mould |
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| CN202111160352.XA CN113858526B (en) | 2021-09-30 | 2021-09-30 | Shoemaking mould |
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| CN113858526B true CN113858526B (en) | 2023-04-21 |
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