CN112388921A - Demolding device for injection molding production of daily necessities and using method thereof - Google Patents
Demolding device for injection molding production of daily necessities and using method thereof Download PDFInfo
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- CN112388921A CN112388921A CN202011137655.5A CN202011137655A CN112388921A CN 112388921 A CN112388921 A CN 112388921A CN 202011137655 A CN202011137655 A CN 202011137655A CN 112388921 A CN112388921 A CN 112388921A
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- injection molding
- die holder
- demolding
- demoulding
- spring
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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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/40—Removing or ejecting moulded articles
- B29C45/44—Removing or ejecting moulded articles for undercut articles
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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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/2602—Mould construction elements
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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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/40—Removing or ejecting moulded articles
- B29C45/43—Removing or ejecting moulded articles using fluid under pressure
- B29C45/435—Removing or ejecting moulded articles using fluid under pressure introduced between a mould core and a hollow resilient undercut article, e.g. bellows
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses a demoulding device for injection moulding production of daily necessities and a using method thereof, relates to the technical field of injection moulding production, and aims to solve the problems that the existing demoulding device is complex in structure, inconvenient to demould and easy to damage due to the fact that stress is not uniform during demoulding. The die holder is installed to the upper end of bottom plate, the below of roof is provided with the upper die base, be provided with the injection moulding chamber between die holder and the upper die base, the inside in injection moulding chamber is provided with daily necessities injection moulding spare, the both sides of upper die base lower extreme all are provided with oblique bolt, the both sides of die holder upper end all are provided with side demoulding mechanism, the both sides of side demoulding mechanism upper end all are provided with oblique guiding hole, side demoulding mechanism's inboard is provided with the recess, the internally mounted of recess has first spring, and the one end and the recess fixed connection of first spring, and the other end and the die holder fixed connection of first spring, die holder and side demoulding mechanism sliding connection.
Description
Technical Field
The invention relates to the technical field of injection molding production, in particular to a demolding device for injection molding production of daily necessities and a using method thereof.
Background
Articles for daily use, namely daily necessities, are articles for daily use of ordinary people, most of the articles for daily use are produced by injection molding, and the injection molding is a method for producing and molding industrial products. The products are generally produced by rubber injection molding and plastic injection molding. The injection molding can also be divided into an injection molding die pressing method and a die casting method, an injection molding machine (an injection machine or an injection molding machine for short) is main molding equipment for manufacturing thermoplastic plastics or thermosetting materials into plastic products with various shapes by utilizing a plastic molding die, the injection molding is realized by the injection molding machine and the die, the processing working hour of the injection molding production is short, the labor is less, the process is compact, the occupied area is small, the discharged waste from the raw materials to the products for one-step molding is less, so the injection molding machine is widely applied to various fields, and a demolding device is often used in the demolding process of the injection molding die.
However, the existing demoulding device is complex in structure and inconvenient to demould, and a product is easy to damage due to the fact that stress is uneven when the product is demoulded, so that the existing requirement is not met, and the demoulding device for injection molding production of daily necessities is provided.
Disclosure of Invention
The invention aims to provide a demoulding device for injection moulding production of daily necessities and a using method thereof, which are used for solving the problems that the existing demoulding device proposed in the background technology has a complex structure, is inconvenient to demould and is easy to damage due to uneven stress during demoulding.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a shedder is used in daily necessities production of moulding plastics, includes bottom plate and roof, the die holder is installed to the upper end of bottom plate, the below of roof is provided with the upper die base, be provided with the injection moulding chamber between die holder and the upper die base, the inside in injection moulding chamber is provided with daily necessities injection moulding spare, the both sides of upper die base lower extreme all are provided with oblique bolt, the both sides of die holder upper end all are provided with side demoulding mechanism, the both sides of side demoulding mechanism upper end all are provided with oblique guiding hole, side demoulding mechanism's inboard is provided with the recess, the internally mounted of recess has first spring, and the one end and the recess fixed connection of first spring, and the other end and the die holder fixed connection of first spring, die holder and side demoulding mechanism sliding connection.
In a further embodiment, a first elongated slot is arranged inside the lower die holder, a second elongated slot is arranged at the lower end of the first elongated slot, a demoulding rod is arranged inside the first elongated slot, a limiting disc is arranged at the lower end of the demoulding rod, the limiting disc and the demoulding rod are arranged into an integrally formed structure, a second spring is arranged between the upper end of the limiting disc and the second elongated slot, the second spring is fixedly connected with the limiting disc and the second elongated slot, a blowing base is mounted at the bottom end inside the second elongated slot, a blowing channel is arranged inside the blowing base, an air inlet channel is arranged inside the lower die holder and located on one side of the blowing channel, a demoulding air hole is arranged at the upper end of the lower die holder and located at the upper end of the first elongated slot, and three demoulding air holes, the first elongated slot and the second elongated slot are arranged.
In a further embodiment, one end of the air inlet channel is provided with a compressed air inlet pipe, the compressed air inlet pipe is positioned at the outer side of the lower die base, and the compressed air inlet pipe is fixedly connected with the lower die base.
In a further embodiment, the lower end of the side demolding mechanism is provided with a sliding groove, sliding strips are arranged on two sides of the upper end of the lower die holder and embedded into the sliding groove, the sliding strips are connected with the sliding groove in a sliding mode, and one end of each sliding strip is provided with a limiting screw.
In a further embodiment, a chamfered portion is provided at one side of an upper end of the slanted guide hole.
In a further embodiment, the both sides of upper die base all are provided with the chimb, and chimb and upper die base set up to the integrated into one piece structure, the guide bar is all installed to the edge between bottom plate and the roof, and the guide bar runs through the chimb, and the equal fixed connection of guide bar and bottom plate and roof.
In a further embodiment, a guide sliding sleeve is arranged between the convex edge and the guide rod, the guide sliding sleeve is in sliding connection with the guide rod, and the guide sliding sleeve is fixedly connected with the convex edge.
In a further embodiment, a driving frame is mounted at the upper end of the upper die base and connected with the upper die base through a bolt, a driving cylinder is mounted in the middle of the upper end of the top plate, and an air rod of the driving cylinder is fixedly connected with the driving frame.
In a further embodiment, a nozzle is mounted in the middle of the upper end of the upper die base.
A transportation method of a demoulding device for injection moulding production of daily necessities comprises the following steps:
the method comprises the following steps: the driving cylinder works to push the driving frame to move downwards and synchronously move downwards with the upper die base fixed by the driving frame, and the upper die base is in contact with the lower die base to be matched;
step two: when the die is closed, the inclined plug pin is embedded into the inclined guide hole, the first spring is compressed, the side demolding mechanism horizontally slides along the slide bar and is in contact with the side surface of the lower die seat, and an injection molding cavity is formed among the lower die seat, the upper die seat and the side demolding mechanism;
step three: injecting the heated and melted plastic into a nozzle from an injection molding machine at high pressure, and injecting the plastic into the injection molding cavity through the nozzle;
step four: cooling and solidifying the heated and melted plastic in the injection molding cavity to obtain an injection molding part of the daily necessities;
step five: the driving cylinder works to drive the driving frame to move upwards and synchronously move upwards with the upper die base fixed by the driving frame, and the upper die base and the lower die base are separated and opened;
step six: when the die is opened, the inclined bolt is drawn out from the inner part of the inclined guide hole, the first spring is reset, the side demolding mechanism is horizontally reset along the slide bar in a sliding manner, and the side demolding mechanism is separated from the side surface of the lower die seat;
step seven: compressed gas is introduced through a compressed gas inlet pipe, enters the air inlet channel, enters the air blowing channel through the air inlet channel, enters the interior of the second long groove through the air blowing channel, a part of the compressed gas pushes the limiting disc to move upwards for a certain distance, the second spring is compressed, the second spring synchronously moves upwards for a certain distance with the demolding rod fixed by the limiting disc, and the other part of the compressed gas is discharged through the first long groove, the second long groove and the demolding air hole, is in contact with the injection molded article of daily necessities, applies horizontal upward thrust to the injection molded article of daily necessities, and pushes the injection molded article of daily necessities to move upwards;
step eight: after the demolding is finished, the compressed gas inlet pipe stops ventilating, the second spring resets, and the demolding rod and the limiting disc reset.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, through the matching between the inclined bolt and the inclined guide hole, the first spring can be compressed when the mould is closed, the side demoulding mechanism horizontally slides along the slide bar and is contacted with the side surface of the lower mould seat, an injection moulding cavity is formed among the lower mould seat, the upper mould seat and the side demoulding mechanism, molten plastics can be cooled, solidified and moulded in the injection moulding cavity, when the mould is opened, the inclined bolt is drawn out from the inside of the inclined guide hole, the first spring is reset to drive the side demoulding mechanism to horizontally slide and reset along the slide bar, so that the side demoulding mechanism is separated from the side surface of the lower mould seat, and therefore, the side demoulding of injection moulded parts of daily necessities is realized, the demoulding structure is simple, and the demoulding operation is;
2. compressed gas is introduced through a compressed gas inlet pipe, enters the air inlet channel, enters the air blowing channel through the air inlet channel, finally enters the interior of a second long groove through the air blowing channel, a part of the compressed gas pushes a limiting disc to move upwards for a certain distance to enable a second spring to be compressed, the second spring synchronously moves upwards for a certain distance with a demoulding rod fixed on the limiting disc, the other part of the compressed gas is discharged through the first long groove, the second long groove and a demoulding air hole, is in contact with the surface of an injection moulding piece of a daily necessity and applies horizontal upward thrust to the injection moulding piece of the daily necessity to push the injection moulding piece of the daily necessity to move upwards, so that pneumatic demoulding of the injection moulding piece of the daily necessity is realized, the compressed gas can be uniformly distributed at the lower end of the injection moulding piece of the daily necessity during demoulding and applies the same demoulding thrust to the injection moulding piece of the daily necessity, so that the daily injection molded part is stressed uniformly during demolding, is not easy to damage, and improves the demolding quality.
Drawings
FIG. 1 is a schematic structural diagram of a demolding device for injection molding production of daily necessities according to the invention;
FIG. 2 is a schematic diagram of the operation of the demolding device for injection molding of the daily necessities of the invention;
FIG. 3 is an enlarged view of a portion of region A of the present invention;
FIG. 4 is a schematic structural view of the lower die holder of the present invention;
FIG. 5 is a partial enlarged view of region B of the present invention;
FIG. 6 is a schematic view of the structure of the mold release vent of the present invention;
fig. 7 is a schematic structural view of a side demolding mechanism of the present invention.
In the figure: 1. a base plate; 2. a top plate; 3. a lower die holder; 4. an upper die holder; 5. injection molding a cavity; 6. injection molded articles for daily use; 7. an oblique bolt; 8. a side demolding mechanism; 9. an inclined guide hole; 10. a groove; 11. a first spring; 12. a slide bar; 13. a limit screw; 14. a first elongated slot; 15. a second elongated slot; 16. a stripper bar; 17. a limiting disc; 18. a second spring; 19. a blowing base; 20. an air blowing channel; 21. an air intake passage; 22. a compressed gas inlet pipe; 23. demoulding air holes; 24. a chute; 25. chamfering a corner; 26. a convex edge; 27. a guide bar; 28. a guide sliding sleeve; 29. a driving frame; 30. a driving cylinder; 31. and (4) a nozzle.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-7, an embodiment of the present invention is shown: a demoulding device for injection moulding production of daily necessities comprises a bottom plate 1 and a top plate 2, wherein a lower die holder 3 is installed at the upper end of the bottom plate 1, an upper die holder 4 is arranged below the top plate 2, an injection moulding cavity 5 is arranged between the lower die holder 3 and the upper die holder 4, a daily necessity injection moulding piece 6 is arranged inside the injection moulding cavity 5, oblique bolts 7 are arranged on two sides of the lower end of the upper die holder 4, side demoulding mechanisms 8 are arranged on two sides of the upper end of the lower die holder 3, oblique guide holes 9 are arranged on two sides of the upper end of each side demoulding mechanism 8, a groove 10 is arranged inside each side demoulding mechanism 8, a first spring 11 is installed inside each groove 10, one end of each first spring 11 is fixedly connected with each groove 10, the other end of each first spring 11 is fixedly connected with the lower die holder 3, the lower die holder 3 is slidably connected with each side demoulding mechanism 8, and during die assembly, the first spring 11 is compressed, the side demolding mechanism 8 slides horizontally along the slide bar 12 and contacts with the side surface of the lower die holder 3, at the moment, an injection molding cavity 5 is formed among the lower die holder 3, the upper die holder 4 and the side demolding mechanism 8, heated and melted plastic is injected into the nozzle 31 from an injection molding machine at high pressure and then is injected into the injection molding cavity 5 through the nozzle 31, the heated and melted plastic is cooled and solidified in the injection molding cavity 5, so that a daily injection molded part 6 is obtained, after molding, die sinking is performed, the driving cylinder 30 works to drive the driving frame 29 to move upwards, the upper die holder 4 fixed with the driving frame 29 moves upwards synchronously along the guide rod 27, the upper die holder 4 is separated from the lower die holder 3 to realize the separation, during the die sinking, the inclined insertion pin 7 is drawn out from the inside of the inclined guide hole 9, the first spring 11 resets to drive the side demolding mechanism 8 to slide horizontally along the slide bar 12 to reset, so that the side demolding mechanism 8 is, realize the side drawing of patterns to daily necessities injection moulding part 6, demoulding structure is simple, drawing of patterns convenient operation.
Further, a first long groove 14 is arranged in the lower die holder 3, a second long groove 15 is arranged at the lower end of the first long groove 14, a demoulding rod 16 is arranged in the first long groove 14, a limiting disc 17 is arranged at the lower end of the demoulding rod 16, the limiting disc 17 and the demoulding rod 16 are arranged into an integrated structure, a second spring 18 is arranged between the upper end of the limiting disc 17 and the second long groove 15, the second spring 18 is fixedly connected with the limiting disc 17 and the second long groove 15, a blowing base 19 is arranged at the bottom end in the second long groove 15, a blowing channel 20 is arranged in the blowing base 19, an air inlet channel 21 is arranged in the lower die holder 3, the air inlet channel 21 is positioned at one side of the blowing channel 20, a demoulding air hole 23 is arranged at the upper end of the lower die holder 3, the demoulding air hole 23 is positioned at the upper end of the first long groove 14, and three demoulding air holes 23, the first long groove 14 and the second, compressed gas enters the air inlet channel 21, enters the air blowing channel 20 through the air inlet channel 21, enters the second long groove 15 through the air blowing channel 20, a part of the compressed gas pushes the limiting disc 17 to move upwards for a certain distance, the second spring 18 is compressed and synchronously moves upwards for a certain distance with the demolding rod 16 fixed on the limiting disc 17, and the other part of the compressed gas is discharged through the first long groove 14, the second long groove 15 and the demolding air hole 23 and is in contact with the daily injection molded part 6 to apply horizontal upward pushing force to the daily injection molded part 6 to push the daily injection molded part 6 to move upwards.
Further, one end of the air inlet channel 21 is provided with a compressed air inlet pipe 22, the compressed air inlet pipe 22 is located on the outer side of the lower die holder 3, the compressed air inlet pipe 22 is fixedly connected with the lower die holder 3, and compressed air can be introduced into the compressed air inlet pipe 22.
Further, the lower end of the side demolding mechanism 8 is provided with a sliding groove 24, the two sides of the upper end of the lower die holder 3 are provided with sliding strips 12, the sliding strips 12 are embedded into the sliding groove 24, the sliding strips 12 are connected with the sliding groove 24 in a sliding mode, one end of each sliding strip 12 is provided with a limiting screw 13, and mold closing and demolding of the side demolding mechanism 8 are achieved.
Further, a chamfered portion 25 is provided at one side of the upper end of the inclined guide hole 9 to perform a transition function.
Further, the both sides of upper die base 4 all are provided with chimb 26, and chimb 26 sets up to the integrated into one piece structure with upper die base 4, and guide bar 27 is all installed to the edge between bottom plate 1 and the roof 2, and guide bar 27 runs through chimb 26, and guide bar 27 and bottom plate 1 and the equal fixed connection of roof 2 play the guide effect, avoid upper die base 4 and die holder 3 dislocation.
Further, be provided with direction sliding sleeve 28 between chimb 26 and the guide bar 27, and direction sliding sleeve 28 and guide bar 27 sliding connection, and direction sliding sleeve 28 and chimb 26 fixed connection improve the direction effect, further avoid upper die base 4 and die holder 3 dislocation, improve the quality of moulding plastics.
Further, drive frame 29 is installed to the upper end of upper die base 4, and drive frame 29 passes through bolted connection with upper die base 4, it drives actuating cylinder 30 to install in the middle of the upper end of roof 2, drive actuating cylinder 30's gas pole and drive frame 29 fixed connection, it promotes drive frame 29 downstream to drive actuating cylinder 30 work, with the synchronous downstream of upper die base 4 that drive actuating frame 29 is fixed, upper die base 4 and die holder 3 contact compound die, it drives actuating cylinder 30 work and drives drive frame 29 upward movement, with the synchronous upward movement of upper die base 4 that drive actuating frame 29 is fixed, upper die base 4 and die holder 3 separation die sinking.
Further, a nozzle 31 is installed in the middle of the upper end of the upper die base 4 and is in close contact with a die bushing opening, so that the molten plastic is conveyed.
A transportation method of a demoulding device for injection moulding production of daily necessities comprises the following steps:
the method comprises the following steps: the driving cylinder 30 works to push the driving frame 29 to move downwards, the driving frame and the upper die base 4 fixed on the driving frame 29 synchronously move downwards, and the upper die base 4 is in contact with the lower die base 3 for die assembly;
step two: during die assembly, the inclined pin 7 is embedded into the inclined guide hole 9, the first spring 11 is compressed, the side demolding mechanism 8 horizontally slides along the slide bar 12 and is in contact with the side surface of the lower die holder 3, and the injection molding cavity 5 is formed among the lower die holder 3, the upper die holder 4 and the side demolding mechanism 8;
step three: the heated and melted plastic is injected into the nozzle 31 from the injection molding machine at high pressure and is injected into the injection molding cavity 5 through the nozzle 31;
step four: cooling and solidifying the heated and melted plastic in the injection molding cavity 5 to obtain an injection molding part 6 of the daily necessities;
step five: the driving cylinder 30 works to drive the driving frame 29 to move upwards, the driving frame and the upper die base 4 fixed on the driving frame 29 move upwards synchronously, and the upper die base 4 and the lower die base 3 are separated and opened;
step six: when the mould is opened, the inclined pin 7 is pulled out from the inclined guide hole 9, the first spring 11 is reset, the side demoulding mechanism 8 is horizontally reset along the slide bar 12 in a sliding manner, the side demoulding mechanism 8 is separated from the side surface of the lower mould base 3, so that the side demoulding of the daily injection moulding part 6 is realized, the demoulding structure is simple, and the demoulding operation is convenient;
step seven: compressed gas is introduced through the compressed gas inlet pipe 22, enters the inside of the gas inlet channel 21, enters the inside of the gas blowing channel 20 through the gas inlet channel 21, enters the inside of the second long groove 15 through the gas blowing channel 20, a part of the compressed gas pushes the limiting disc 17 to move upwards for a certain distance, the second spring 18 is compressed, synchronously moves upwards for a certain distance with the demoulding rod 16 fixed on the limiting disc 17, and the other part of the compressed gas is discharged through the first long groove 14, the second long groove 15 and the demoulding air hole 23 and contacts with the injection molded article 6 of the daily necessities, applies horizontal upward thrust to the injection molded article 6 of the daily necessities, and pushes the injection molded article 6 of the daily necessities to move upwards;
step eight: after the demoulding is finished, the compressed gas inlet pipe 22 stops ventilating, the second spring 18 resets, and the demoulding rod 16 and the limiting disc 17 reset.
The working principle is as follows: when the injection molding device is used, the driving cylinder 30 works to push the driving frame 29 to move downwards, the upper die base 4 fixed with the driving frame 29 synchronously moves downwards along the guide rod 27, the upper die base 4 is in contact with the lower die base 3 to realize die assembly, the inclined insertion pin 7 is embedded into the inclined guide hole 9 during die assembly, the first spring 11 is compressed, the side demolding mechanism 8 horizontally slides along the slide bar 12 and is in contact with the side surface of the lower die base 3, at the moment, an injection molding cavity 5 is formed between the lower die base 3, the upper die base 4 and the side demolding mechanism 8, heated and melted plastic is injected into the nozzle 31 from the injection molding machine at high pressure and then is injected into the injection molding cavity 5 through the nozzle 31, the heated and melted plastic is cooled and solidified in the injection molding cavity 5, so that a daily injection molding piece 6 of a daily product is obtained, die opening is carried out after molding, the driving cylinder 30 works to drive the driving frame 29 to move upwards, the upper die base 4 fixed with the, the upper die holder 4 and the lower die holder 3 are separated to realize die opening, when the die is opened, the inclined plug pins 7 are drawn out from the inner part of the inclined guide holes 9, the first springs 11 are reset to drive the side demoulding mechanisms 8 to horizontally slide and reset along the slide bars 12, so that the side demoulding mechanisms 8 are separated from the side surface of the lower die holder 3, the side demoulding of the daily injection molded part 6 is realized, the demoulding structure is simple, the demoulding operation is convenient, then compressed gas is introduced through the compressed gas inlet pipe 22, the compressed gas firstly enters the gas inlet channel 21, then enters the gas blowing channel 20 through the gas blowing channel 20, finally enters the inner part of the second long groove 15 through the gas blowing channel 20, one part of the compressed gas pushes the limiting disc 17 to move upwards for a certain distance, at the moment, the second springs 18 are compressed, the demoulding rods 16 fixed with the limiting disc 17 synchronously move upwards for a certain distance, and the other part of the compressed gas is discharged through the first long grooves 14, the pneumatic demoulding device is in contact with the surface of the daily injection molded part 6 and applies horizontal upward thrust to the daily injection molded part 6 to push the daily injection molded part 6 to move upwards, so that pneumatic demoulding of the daily injection molded part 6 is realized, compressed gas can be uniformly distributed at the lower end of the daily injection molded part 6 during demoulding, the same demoulding thrust of the daily injection molded part 6 is applied, the stress of the daily injection molded part 6 during demoulding is uniform, the pneumatic demoulding device is not easy to damage, the demoulding quality is improved, after demoulding is completed, the compressed gas inlet pipe 22 stops ventilating, the second spring 18 resets, and the demoulding rod 16 and the limiting disc 17 reset.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (10)
1. The utility model provides a demolding device is used in daily necessities production of moulding plastics, includes bottom plate (1) and roof (2), its characterized in that: the die comprises a bottom plate (1), a die holder (3) is installed at the upper end of the bottom plate (1), an upper die holder (4) is arranged below a top plate (2), an injection molding cavity (5) is arranged between the die holder (3) and the upper die holder (4), a daily-use injection molding piece (6) is arranged inside the injection molding cavity (5), oblique bolts (7) are arranged on two sides of the lower end of the upper die holder (4), side demolding mechanisms (8) are arranged on two sides of the upper end of the die holder (3), oblique guide holes (9) are arranged on two sides of the upper end of each side demolding mechanism (8), a groove (10) is arranged on the inner side of each side demolding mechanism (8), a first spring (11) is installed inside the groove (10), one end of the first spring (11) is fixedly connected with the groove (10), and the other end of the first spring (11) is fixedly connected with the die holder (3, the lower die holder (3) is connected with the side demolding mechanism (8) in a sliding mode.
2. The demolding device for injection molding of commodities as claimed in claim 1, wherein: a first long groove (14) is arranged in the lower die holder (3), a second long groove (15) is arranged at the lower end of the first long groove (14), a demoulding rod (16) is arranged in the first long groove (14), a limiting disc (17) is arranged at the lower end of the demoulding rod (16), the limiting disc (17) and the demoulding rod (16) are arranged into an integral forming structure, a second spring (18) is arranged between the upper end of the limiting disc (17) and the second long groove (15), the second spring (18) is fixedly connected with the limiting disc (17) and the second long groove (15), an air blowing base (19) is arranged at the bottom end in the second long groove (15), an air blowing channel (20) is arranged in the air blowing base (19), an air inlet channel (21) is arranged in the lower die holder (3), and the air inlet channel (21) is positioned at one side of the air blowing channel (20), the upper end of the lower die holder (3) is provided with three demolding air holes (23), the demolding air holes (23) are located at the upper end of the first long groove (14), and the demolding air holes (23), the first long groove (14) and the second long groove (15) are all arranged in a three-way mode.
3. The demolding device for injection molding of commodities as claimed in claim 2, wherein: one end of the air inlet channel (21) is provided with a compressed air inlet pipe (22), the compressed air inlet pipe (22) is located on the outer side of the lower die base (3), and the compressed air inlet pipe (22) is fixedly connected with the lower die base (3).
4. The demolding device for injection molding of commodities as claimed in claim 1, wherein: the lower extreme of side demoulding mechanism (8) is provided with spout (24), both sides of die holder (3) upper end all are provided with draw runner (12), and draw runner (12) embedding spout (24) inside, and draw runner (12) and spout (24) sliding connection, stop screw (13) are installed to the one end of draw runner (12).
5. The demolding device for injection molding of commodities as claimed in claim 1, wherein: and a chamfered part (25) is arranged on one side of the upper end of the inclined guide hole (9).
6. The demolding device for injection molding of commodities as claimed in claim 1, wherein: both sides of upper die base (4) all are provided with chimb (26), and chimb (26) and upper die base (4) set up to the integrated into one piece structure, guide bar (27) are all installed to edge between bottom plate (1) and roof (2), and guide bar (27) run through chimb (26), and guide bar (27) and bottom plate (1) and the equal fixed connection of roof (2).
7. The demolding device for injection molding of daily necessities according to claim 6, wherein: a guide sliding sleeve (28) is arranged between the convex edge (26) and the guide rod (27), the guide sliding sleeve (28) is in sliding connection with the guide rod (27), and the guide sliding sleeve (28) is fixedly connected with the convex edge (26).
8. The demolding device for injection molding of commodities as claimed in claim 1, wherein: the upper end of upper die base (4) is installed and is driven movable support (29), and drives movable support (29) and upper die base (4) and pass through bolted connection, drive actuating cylinder (30) are installed to the centre of roof (2) upper end, the gas pole and the drive movable support (29) fixed connection that drive actuating cylinder (30).
9. The demolding device for injection molding of commodities as claimed in claim 1, wherein: and a nozzle (31) is arranged in the middle of the upper end of the upper die holder (4).
10. A method for using a demoulding device for injection molding production of daily necessities, which is based on any one of the demoulding devices for injection molding production of daily necessities of claims 1-9, and is characterized by comprising the following steps:
the method comprises the following steps: the driving cylinder (30) works to push the driving frame (29) to move downwards and synchronously move downwards with the upper die holder (4) fixed on the driving frame (29), and the upper die holder (4) is contacted with the lower die holder (3) for die assembly;
step two: when the die is closed, the inclined plug pin (7) is embedded into the inclined guide hole (9), the first spring (11) is compressed, the side demolding mechanism (8) horizontally slides along the slide bar (12) and is in contact with the side surface of the lower die base (3), and an injection molding cavity (5) is formed among the lower die base (3), the upper die base (4) and the side demolding mechanism (8);
step three: the heated and melted plastic is injected into a nozzle (31) from an injection molding machine at high pressure and is injected into the injection molding cavity (5) through the nozzle (31);
step four: the heated and melted plastic is cooled and solidified in the injection molding cavity (5) to obtain an injection molding part (6) of the daily necessities;
step five: the driving cylinder (30) works to drive the driving frame (29) to move upwards, the driving frame and the upper die holder (4) fixed on the driving frame (29) synchronously move upwards, and the upper die holder (4) and the lower die holder (3) are separated and opened;
step six: when the die is opened, the inclined plug pin (7) is drawn out from the inner part of the inclined guide hole (9), the first spring (11) is reset, the side demolding mechanism (8) horizontally slides along the slide bar (12) to reset, and the side demolding mechanism (8) is separated from the side surface of the lower die seat (3);
step seven: compressed gas is introduced through a compressed gas inlet pipe (22), the compressed gas enters the inside of a gas inlet channel (21), enters the inside of a gas blowing channel (20) through the gas inlet channel (21), enters the inside of a second long groove (15) through the gas blowing channel (20), a part of the compressed gas pushes a limiting disc (17) to move upwards for a certain distance, a second spring (18) is compressed, a demoulding rod (16) fixed with the limiting disc (17) synchronously moves upwards for a certain distance, and the other part of the compressed gas is discharged through a first long groove (14), a second long groove (15) and a demoulding air hole (23) and is contacted with an injection molding piece (6) of daily necessities, and horizontal upward thrust of the injection molding piece (6) of the daily necessities is applied to push the injection molding piece (6) of the daily necessities to move upwards;
step eight: after demolding is finished, the compressed gas inlet pipe (22) stops ventilating, the second spring (18) resets, and the demolding rod (16) and the limiting disc (17) reset.
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