CN114603755A - Plastic mold convenient for demolding - Google Patents
Plastic mold convenient for demolding Download PDFInfo
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- CN114603755A CN114603755A CN202210220911.XA CN202210220911A CN114603755A CN 114603755 A CN114603755 A CN 114603755A CN 202210220911 A CN202210220911 A CN 202210220911A CN 114603755 A CN114603755 A CN 114603755A
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- fixedly connected
- mold
- rotating
- gear
- demolding
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- 239000004033 plastic Substances 0.000 title claims abstract description 170
- 229920003023 plastic Polymers 0.000 title claims abstract description 170
- 230000002441 reversible effect Effects 0.000 claims abstract description 152
- 230000007246 mechanism Effects 0.000 claims abstract description 76
- 238000000034 method Methods 0.000 claims abstract description 61
- 230000008569 process Effects 0.000 claims abstract description 52
- 230000001360 synchronised effect Effects 0.000 claims abstract description 44
- 238000003756 stirring Methods 0.000 claims description 29
- 238000005266 casting Methods 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 10
- 238000005096 rolling process Methods 0.000 claims description 4
- 230000009471 action Effects 0.000 abstract description 16
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000001746 injection moulding Methods 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 description 9
- 230000000694 effects Effects 0.000 description 9
- 238000001125 extrusion Methods 0.000 description 8
- 239000004593 Epoxy Substances 0.000 description 5
- 230000006835 compression Effects 0.000 description 5
- 238000007906 compression Methods 0.000 description 5
- 238000001816 cooling Methods 0.000 description 5
- 230000002349 favourable effect Effects 0.000 description 5
- 238000003754 machining Methods 0.000 description 5
- 238000007599 discharging Methods 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 3
- 230000013011 mating Effects 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 230000001174 ascending effect Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 229920001821 foam rubber Polymers 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
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- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Images
Classifications
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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
- B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
- B29C39/02—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of definite length, i.e. discrete 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
- B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
- B29C39/22—Component parts, details or accessories; Auxiliary operations
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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
- B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
- B29C39/22—Component parts, details or accessories; Auxiliary operations
- B29C39/36—Removing moulded articles
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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
- B29L2031/56—Stoppers or lids for bottles, jars, or the like, e.g. closures
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention relates to the technical field of processing molds, in particular to a plastic mold convenient for demolding, which comprises a processing table, wherein the top of the processing table is fixedly connected with a plurality of lower reverse molds in a circumferential array manner, the top of each lower reverse mold is provided with an upper reverse mold, the side surfaces of the lower reverse molds are fixedly connected with two first limiting pins, and the upper reverse molds are all connected to the adjacent first limiting pins in a sliding manner; according to the invention, through the action of the synchronous rotating mechanism and the synchronous lifting mechanism, the internal threads of the plastic bottle cap are synchronously separated from the threaded core column in the process of keeping away from the upper die and the lower die, so that the quantity of the dies is reduced, the injection molding is convenient, the automation degree of demolding a molded part of the bottle cap, which has threads and a vertical groove, is improved, the demolding efficiency is effectively improved, the time required in the secondary pouring process is shortened, and the production efficiency of the dies is improved.
Description
Technical Field
The invention relates to the field of processing molds, in particular to a plastic mold convenient for demolding.
Background
The casting method is one of molding methods of plastics. The method for injecting the liquid monomer, the resin or the mixture thereof into the mould without pressurization or with slight pressurization to form the product comprises the steps of forming internal threads which are connected with a bottle opening in a threaded mode in the plastic bottle cap during casting, and forming internal threads in the plastic bottle cap after cooling and forming by arranging a threaded cylinder with a corresponding shape in the mould during casting.
The prior art discloses partial patent documents related to a mold, and Chinese patent with application number CN201410600677.9, and discloses an automatic demolding mold for a plastic cover, which comprises an upper mold, a lower mold and a fixed base, wherein the lower mold is arranged on the fixed base; a lifting rod is arranged on the fixed base, a gear groove is arranged on the lifting rod, a lifting device is arranged on the lifting rod, a first motor is arranged in the lifting device, and a straight gear is arranged on the first motor; the lifting device is connected with the upper die; a first threaded core rod hole is formed in the lower die, and a second threaded core rod hole is formed in the fixed base; a second motor is arranged in the lower die, and a helical gear is arranged on the second motor; the lower part of the fixed base is provided with a fixed connecting hole.
The prior art is carrying out the drawing of patterns to the plastics bottle lid, need to go up mould and lower mould and separate, makes the inside internal thread of plastics bottle lid and lower mould drop again to accomplish the drawing of patterns, at the drawing of patterns in-process of reality, mould and lower mould are gone up in the separation, rotate the surface of following the lower mould with the plastics bottle lid that the cooling was stereotyped again and break away from, cause the process of drawing of patterns comparatively complicated, influence drawing of patterns efficiency, be unfavorable for the mould and carry out reprocess.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a plastic mold convenient to demold.
In order to achieve the above purposes, the technical scheme adopted by the invention is as follows: a plastic mold convenient for demolding comprises a processing table, wherein the top of the processing table is fixedly connected with a plurality of lower reverse molds in a circumferential array manner, upper reverse molds are placed on the tops of the lower reverse molds, two first limiting pins are fixedly connected to the side surfaces of the lower reverse molds, the upper reverse molds are slidably connected to the adjacent first limiting pins, an upper mold cavity and a lower mold cavity are respectively formed in one side, opposite to the upper reverse molds, of each upper reverse mold, a casting container and an exhaust pipe are fixedly communicated with the top of each upper reverse mold, one end of each casting container and one end of each exhaust pipe are communicated with the upper mold cavity, a plurality of upper reverse molds are jointly connected with a mold closing limiting mechanism, a plurality of strip-shaped grooves are formed in the side surfaces of the upper mold cavities in a circumferential array manner, and threaded core columns are rotatably connected to the bottoms of the lower mold cavities;
the bottom of the threaded core column is fixedly connected with a circular shaft, one end of the circular shaft penetrates through the side face of the processing table and extends to the bottom of the processing table, a synchronous rotating mechanism is connected among the circular shafts together, a synchronous lifting mechanism is connected to the upper reverse mold, a rotary material shifting mechanism is connected to the processing table, the synchronous rotating mechanism acts on the upper reverse mold and the plastic bottle cap in the process of rotating and separating, the synchronous lifting mechanism acts on the upper reverse mold to synchronously lift along with the plastic bottle cap, and continues to act on the upper reverse mold to lift after the plastic bottle cap is separated from the side face of the threaded core column, so that a demolding space exists between the upper reverse mold and the lower reverse mold, and the rotary material shifting mechanism is used for shifting out the plastic bottle cap between the upper reverse mold and the lower reverse mold to complete demolding; when the plastic bottle cap demoulding device works, the prior art needs to separate the upper die from the lower die and then enables the internal thread inside the plastic bottle cap and the lower die to fall off so as to complete demoulding, in the actual demoulding process, the upper die and the lower die are separated, and then the cooled and shaped plastic bottle cap is rotated and separated from the surface of the lower die, so that the demoulding process is complicated, the demoulding efficiency is influenced, and the repeated processing of the die is not facilitated. The overflow of molten plastic raw materials is avoided, epoxy plastic in a molten state is cooled and formed between an upper die cavity and a lower die cavity to form the shape of a plastic bottle cap, internal threads are formed in the plastic bottle cap through threads on the side surface of a threaded core column, anti-skid threads are formed on the side surface of the plastic bottle cap through strip-shaped grooves on the side surface of the upper die cavity, the plastic bottle cap is convenient to screw when being connected to a bottle opening in a threaded mode, the side surface of the plastic bottle cap cannot rotate in the upper die cavity due to the strip-shaped grooves, when the plastic bottle cap needs to be demoulded, the limit between an upper die and a lower die is limited by a die limiting mechanism which is cancelled firstly, the circular shaft is rotated under the action of a synchronous rotating mechanism, the threaded core column is driven to rotate by the circular shaft, the threaded core column is enabled to move upwards in the rotating process of the threaded core column, the upper die is enabled to move upwards along a first limiting pin in sliding connection with the side surface under the action of a synchronous lifting mechanism, therefore, in the process of lifting the plastic bottle cap, the plastic bottle cap is always limited to prevent the plastic bottle cap from rotating, when the plastic bottle cap rises to the top of the threaded core column and is separated from the threaded core column, the synchronous lifting mechanism continues to drive the upper reverse die to move upwards to separate the plastic bottle cap from the upper die cavity, and a certain gap exists between the upper reverse die and the lower reverse die to separate the plastic bottle cap, through the action of the synchronous rotating mechanism and the synchronous lifting mechanism, the plastic bottle cap synchronously separates the internal thread of the plastic bottle cap from the threaded core column in the process of keeping away from the upper reverse die and the lower reverse die, the demoulding treatment of the bottle cap is facilitated, the demoulding treatment of the mould is not required to be carried out by means of a manipulator, on one hand, the quantity of the mould is favorably reduced, the injection molding is facilitated, on the other hand, the automation degree of demoulding of the formed part of the bottle cap with threads and a vertical groove is improved, the demolding efficiency is effectively improved, the time required in the secondary pouring process is shortened, and the mold production efficiency is favorably improved.
Preferably, the die assembly limiting mechanism comprises a plurality of rectangular blocks, the rectangular blocks are fixedly connected to one side of the upper reverse die, guide arc surfaces are arranged on two sides of each rectangular block, a first rotating ring is rotatably connected to the top of the machining table, a plurality of limiting baffles are fixedly connected to the top of the first rotating ring in a circumferential array manner, the limiting baffles are respectively located at the tops of the adjacent rectangular blocks, circular grooves are formed in two sides of the top of each rectangular block, circular blocks are placed in the circular grooves, a first spring is fixedly connected between each circular block and the bottom of each circular groove, and balls are connected to the tops of the circular blocks in a rolling manner; when the die is in operation, the first rotating ring is rotated to one side, the limiting baffle plate on the first rotating ring is separated from the top of the rectangular block, the upper reverse die can move along the first limiting pin so as to be away from the lower reverse die, the first rotating ring is rotated back, the limiting baffle plate returns to the top of the rectangular block along the guide arc surface on the side surface of the rectangular block, the upper reverse die can be limited to move upwards, when the limiting baffle plate is positioned at the top of the rectangular block, the ball is extruded by the bottom of the limiting baffle plate so as to move downwards, the ball extrudes the circular block, the first spring between the circular block and the circular groove is extruded to generate compression deformation, so that the upper reverse die and the lower reverse die are more tightly jointed, a gap between the upper reverse die and the lower reverse die is prevented, the forming effect of the die is improved, when the limiting baffle plate moves at the top of the rectangular block, the bottom of the limiting baffle plate is in contact with the surface of the ball, the sliding friction is converted into rolling friction, the friction force is reduced, and the first rotating ring can rotate conveniently.
Preferably, the synchronous rotating mechanism comprises a rotating shaft and a plurality of first gears, the rotating shaft is rotatably connected to the top of the processing table, the first gears are fixedly connected to one end of the circular shaft, one end of the rotating shaft penetrates through the side surface of the processing table and extends to the lower part of the side surface of the processing table, the first gears are respectively meshed with the second gears, a first motor is fixedly installed at the bottom of the processing table, a third gear is fixedly connected to an output shaft of the first motor, and the third gear is meshed with the second gears; when the circular shaft synchronous rotation device works, the first motor is started, the output shaft of the first motor drives the third gear to rotate, the third gear drives the second gear to rotate through being meshed with the second gear, the plurality of first gears are all meshed with the second gear, and in the process of rotating the second gear, the plurality of first gears are driven to synchronously rotate, so that the first gears drive the circular shaft to synchronously rotate.
Preferably, the synchronous lifting mechanism comprises a fourth gear, a plurality of connecting frames and a connecting ring, the fourth gear is fixedly connected to the top of the rotating shaft, the connecting frames are fixedly connected to the top of the processing table, a fifth gear and a connecting screw rod are respectively rotatably connected to two ends of the top of the connecting frames, one end of the connecting screw rod penetrates through the side surface of the connecting frame and extends to the lower side, the fifth gear is meshed with the fourth gear, driving wheels are fixedly connected to the tops of the fifth gear and the connecting screw rod, adjacent driving wheels are driven by a driving belt, the connecting ring is fixedly connected to the side surface of the upper reverse die, an inner thread is formed in the inner ring surface of the connecting ring, and the connecting ring is in threaded connection with the surface of the connecting screw rod; during operation, the rotating shaft drives the fourth gear to rotate in the rotating process, the fourth gear drives the fifth gear to rotate through the meshing effect of the fourth gear and the fifth gears, the fifth gear drives the driving wheel at the top to rotate, the driving wheel drives the connecting screw at the bottom of the other driving wheel to rotate through the transmission effect of the driving belt, the connecting screw is in threaded connection with the adjacent connecting ring, and the upper reverse mold moves upwards along the first limiting pin in the rotating process of the connecting screw.
Preferably, a circular hole is formed in the top of the upper reverse die, the circular hole is communicated with the upper die cavity, a filling pin is placed above the circular hole, one end of the filling pin is located in the circular hole, second limiting pins are inserted into two ends of the top of the filling pin, the second limiting pins are fixedly connected to the tops of the adjacent upper reverse dies, second springs are sleeved on the second limiting pins, T-shaped rods are fixedly connected to the tops of the connecting frames, and one end of each T-shaped rod is located above the corresponding filling pin; when the plastic bottle cap lifting device works, after the plastic bottle cap is separated from the threaded core column, the upper reverse mold continues to move upwards through the synchronous lifting mechanism, in the process that the upper reverse mold continues to lift, one end of the T-shaped rod blocks the top of the filling pin, in addition, the filling pin is prevented from lifting when the upper reverse mold continues to lift, the two ends of the filling pin slide along the second limiting pin and extrude the second spring, and the second spring is compressed and deformed, so that in the process that the upper reverse mold lifts, the position of the filling pin is kept unchanged, the plastic bottle cap is prevented from being adhered to the upper mold cavity in the cooling forming process, in addition, the plastic bottle cap is prevented from being lifted together with the upper reverse mold, in the process that the upper reverse mold continues to lift, the plastic bottle cap is positioned in the gap between the upper reverse mold and the lower reverse mold, and the plastic bottle cap can be conveniently taken out.
Preferably, the rotating material stirring mechanism comprises a second rotating ring, the second rotating ring is rotatably connected to the top of the processing table, the second rotating ring is connected with a rotating mechanism, the side surface of the second rotating ring is hinged with a plurality of stirring plates in a circumferential array manner, the side surface of each stirring plate is provided with a groove with a downward opening, and the hinged parts of the stirring plates and the second rotating ring are fixedly connected with a torsion spring; when the automatic material-removing machine works, after a plastic bottle cap is separated from a threaded core column, the upper die is continuously moved upwards to enable the plastic bottle cap to be positioned in a gap between the upper die and the lower die, the width of the poking plate just can enter the gap between the upper die and the lower die, the rotating mechanism is started, the rotating mechanism drives the second rotating ring to continuously rotate, the second rotating ring drives the side poking plate to rotate and pass along the gap between the upper die and the lower die, the plastic bottle cap is poked towards one side, the groove in the side surface of the poking plate enables the connecting screw rod to just pass through the groove, so that the plastic bottle cap is separated from the gap between the upper die and the lower die, automatic material-removing is realized, when an error occurs, the rotating mechanism is started prematurely, when the poking plate rotates to one side of the upper die and the lower die, the poking plate rotates around the hinged part under the action of the torsion spring, and the poking plate is reset under the elastic resetting action of the torsion spring, the toggle plate enters between the upper die and the lower die, and the toggle plate also synchronously moves continuously in the process of continuously rising the upper die, so that the phenomenon of blocking is avoided.
Preferably, the rotating mechanism comprises a second motor and a circular gear ring, the second motor is fixedly connected to the top of the processing table, the circular gear ring is fixedly connected to the inner wall of the second rotating ring, the output end of the second motor is fixedly connected with a sixth gear, and the circular gear ring is meshed with the sixth gear; during operation, when the plastic bottle cap between the upper die and the lower die is required to be stirred out for discharging, the second motor is started, the second motor drives the sixth gear to rotate, the sixth gear drives the circular gear to rotate through being meshed with the circular gear ring, and the circular gear ring is fixedly connected to the second rotating ring, so that the second rotating ring rotates, and the stirring plate is driven to stir the plastic bottle cap for discharging.
Preferably, a collecting shell is fixedly connected to one side of the lower reverse mold, inclined plates are placed in the collecting shell, a plurality of third springs are fixedly connected between the bottoms of the inclined plates and the top of the processing table, and collecting holes are formed in the processing table below one side of the inclined plates; during operation, when the stirring board passes through the space between last falling die and the lower falling die, stir the plastics bottle lid to one side of collecting the casing to in getting into the collection casing, the plastics bottle lid falls into the hang plate top, third spring between hang plate and the processing platform cushions when can falling into the hang plate to the plastics bottle lid, reduce the collision to the damage of plastics bottle lid, the plastics bottle lid slides and falls into the collection downthehole along the inclined plane of hang plate, the staff just can collect the plastics bottle lid that the bag was collected to falling in the below setting of collection hole.
Preferably, rotating plates are hinged to two sides of the inner wall of the collecting shell, sponge pads are fixedly connected to one adjacent sides of the rotating plates, arc-shaped pins are inserted into the rotating plates, arc centers of the arc-shaped pins are located on rotating axes of hinged positions of the rotating plates, one ends of the arc-shaped pins are fixedly connected to the adjacent inner wall of the collecting shell, fourth springs are sleeved on the arc-shaped pins between the inner wall of the collecting shell and the rotating plates, and two ends of each fourth spring are fixedly connected with the inner wall of the collecting shell and the rotating plates respectively; the during operation, the plastic bottle lid is stirred to when collecting the casing in, the plastics bottle lid is when the direction to the rotor plate removes, can contact with the foam-rubber cushion of rotor plate one side, alleviate the damage that the collision produced, and at the in-process of collision extrusion rotor plate, the rotor plate removes along the arc round pin, and produce extrusion deformation to the fourth spring, thereby cushion the collision process, two rotor plates draw close to the position that is close to the collection hole, make the plastics bottle lid slide to the collection downthehole time along the inclined plane of hang plate, be located central point all the time, played and guided the best discharge position with the plastics bottle lid, be favorable to avoiding appearing the emergence of card material condition.
Preferably, a movable groove is formed in one side of the collecting shell, an inclined strip is fixedly connected to one side of the inclined plate after penetrating through the movable groove and extending to the outside of the movable groove, one side of the inclined strip of the inclined plate extends out of the movable groove and is positioned outside the collecting shell, a guide inclined plane is formed in the higher end of the inclined strip, and a plurality of shifting lugs distributed in a linear array are arranged at the top of the inclined strip; when the collecting device works, after the stirring plate passes through a gap between the upper pouring die and the lower pouring die and fluctuates the plastic bottle cap in the collecting shell, one end of the stirring plate is contacted with one side of the circular arc edge of the inclined strip, and the stirring plate is overturned along the hinged part, so that the stirring plate passes through the collecting shell, when the stirring plate rotates reversely, the bottom of the stirring plate is close to the lower end of the inclined strip and passes through the upper part of the inclined strip, the bottom of the stirring plate presses the inclined strip and the inclined plate downwards in the process of along the guide inclined plane of the inclined strip, the bottom of the stirring plate gradually contacts with the top of the inclined strip along the ascending of the guide inclined plane of the inclined strip, the inclined strip is fixedly connected to one side of the inclined plate, a third spring at the bottom of the inclined plate is extruded to generate compression deformation and upwards extends under the elastic action, so that the inclined strip generates vibration through the contact extrusion generated by the stirring plate and the stirring lug, and the inclined strip vibrates up and down along the movable groove, and drive the hang plate vibration, the plastics bottle lid that falls in the hang plate top removes along the inclined plane through the vibration to fall into and collect downtheholely, prevent that the unable circumstances that drops on the hang plate of plastics bottle lid from producing, guarantee the collection effect to the plastics bottle lid.
Compared with the prior art, the invention has the following beneficial effects:
1. after the plastic bottle cap rises to the top of the threaded core column and is separated from the threaded core column, the synchronous lifting mechanism continues to drive the upper reverse mold to move upwards, so that the plastic bottle cap is separated from the upper mold cavity, a certain gap exists between the upper reverse mold and the lower reverse mold, so that the plastic bottle cap can be separated, through the action of the synchronous rotating mechanism and the synchronous lifting mechanism, the internal thread of the plastic bottle cap is synchronously separated from the threaded core column in the process that the upper reverse mold and the lower reverse mold are far away, the demolding treatment of the bottle cap is facilitated, the demolding treatment of the mold is not required to be carried out by means of a manipulator, on one hand, the quantity of the mold is reduced, the injection molding is facilitated, on the other hand, the automation degree of demolding of a molded part of the bottle cap, which has both threads and a vertical groove, is improved effectively, the demolding efficiency is improved, and the time required in the secondary pouring process is shortened, is favorable for improving the production efficiency of the die.
2. After the plastic bottle cap is separated from the threaded core column, the upper reverse mold continues to move upwards through the synchronous lifting mechanism, in the process that the upper reverse mold continues to lift, one end of the T-shaped rod blocks the top of the filling pin and blocks the filling pin from lifting when the upper reverse mold continues to lift, two ends of the filling pin slide along the second limiting pin and extrude the second spring to enable the second spring to be compressed and deformed, so that in the process that the upper reverse mold lifts, the position of the filling pin is kept unchanged, the plastic bottle cap is prevented from being adhered to the upper mold cavity in the cooling forming process and rising along with the upper reverse mold, the plastic bottle cap is positioned in a gap between the upper reverse mold and the lower reverse mold in the process that the upper reverse mold continues to lift, and the plastic bottle cap is convenient to take out.
3. The rotating mechanism drives the second rotating ring to continue rotating, the second rotating ring drives the shifting plate on the side face to rotate and pass through the upper die and the lower die, the plastic bottle cap is shifted to one side, the groove in the side face of the shifting plate enables the connecting screw rod to just pass through the groove, so that the plastic bottle cap is separated from the upper die and the lower die, automatic stripping is achieved, when an error occurs, the rotating mechanism is started prematurely, when the shifting plate rotates to one side of the upper die and the lower die, the torsional spring at the hinged position enables the shifting plate to rotate around the hinged position, the shifting plate resets under the elastic resetting action of the torsional spring, the shifting plate enters the space between the upper die and the lower die, and in the process that the upper die continues to rise, the shifting plate also continues to move synchronously, and the phenomenon of blocking is avoided.
4. When the plastic bottle cap between the upper die and the lower die is required to be stirred out to be unloaded, the second motor is started, the second motor drives the sixth gear to rotate, the sixth gear drives the circular gear ring to rotate through being meshed with the circular gear ring, and the circular gear ring is fixedly connected to the second rotating ring, so that the second rotating ring rotates, and the stirring plate is driven to stir the plastic bottle cap to unload.
5. The third spring of hang plate bottom receives the extrusion and produces compression deformation to upwards extend through the elastic action, make the slope strip produce the vibration through the contact extrusion of stirring the movable plate and stirring the lug production, the slope strip vibrates from top to bottom along the movable groove, and drive the hang plate vibration, the plastics bottle lid that falls on the hang plate top removes along the inclined plane through the vibration, and fall into and collect downtheholely, prevent that the condition that the plastics bottle lid can't drop on the hang plate from producing, guarantee the collection effect to the plastics bottle lid.
Drawings
FIG. 1 is a schematic view of a first structure of the present invention;
FIG. 2 is a second schematic construction of the present invention (with a sixth gear partially sectioned);
FIG. 3 is a schematic view of a third structure of the present invention;
FIG. 4 is an enlarged view of the structure at A in FIG. 1 according to the present invention;
FIG. 5 is an enlarged view of the structure at B in FIG. 4 according to the present invention;
FIG. 6 is an enlarged view of the structure at C in FIG. 1 according to the present invention;
FIG. 7 is a schematic cross-sectional view of the mating structure of the upper and lower pour molds of the present invention (with the plastic bottle cap hidden inside);
FIG. 8 is a schematic view of the present invention showing the mating structure of the lower pour mold and the plastic bottle cap;
FIG. 9 is a schematic cross-sectional view of a rectangular block according to the present invention;
FIG. 10 is a schematic view of the coupling ring and coupling screw arrangement of the present invention;
fig. 11 is a schematic cross-sectional view of a portion of a mating structure of a processing station and a collection housing of the present invention.
In the figure: 1. a processing table; 2. downward die reversing; 3. carrying out upper die reversing; 4. a first limit pin; 501. an upper mold cavity; 502. a lower die cavity; 6. a strip-shaped groove; 7. a threaded stem; 8. a casting container; 9. an exhaust pipe; 901. a one-way valve; 10. a circular shaft; 11. a rectangular block; 12. a first rotating ring; 13. a limit baffle; 14. a circular groove; 15. a circular block; 16. a first spring; 17. a ball bearing; 18. a rotating shaft; 19. a first gear; 20. a second gear; 21. a first motor; 22. a third gear; 23. a fourth gear; 24. a connecting frame; 25. a connecting ring; 26. a fifth gear; 27. connecting a screw rod; 28. a driving wheel; 29. a drive belt; 30. a circular hole; 31. a filler pin; 32. a second limit pin; 33. a second spring; 34. a T-shaped rod; 35. a second rotating ring; 36. a poking plate; 37. a torsion spring; 38. a second motor; 39. a circular toothed ring; 40. a sixth gear; 41. a collection housing; 42. an inclined plate; 43. a third spring; 44. a collection well; 45. a rotating plate; 46. a sponge cushion; 47. an arc-shaped pin; 48. a fourth spring; 49. a movable groove; 50. a tilt bar; 51. the convex block is shifted.
Detailed Description
The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments described below are by way of example only, and other obvious variations will occur to those skilled in the art.
The plastic mold convenient for demolding comprises a processing table 1, wherein the top of the processing table 1 is fixedly connected with a plurality of lower reverse molds 2 in a circumferential array manner, the top of each lower reverse mold 2 is provided with an upper reverse mold 3, the side surfaces of the lower reverse molds 2 are fixedly connected with two first limiting pins 4, the upper reverse molds 3 are connected to the adjacent first limiting pins 4 in a sliding manner, one sides of the upper reverse molds 3, which are opposite to the lower reverse molds 2, are respectively provided with an upper mold cavity 501 and a lower mold cavity 502, the top of the upper reverse molds 3 is fixedly communicated with a casting container 8 and an exhaust pipe 9, one ends of the casting container 8 and the exhaust pipe 9 are communicated with the upper mold cavity 501, the upper reverse molds 3 are commonly connected with a mold closing limiting mechanism, the side surfaces of the upper mold cavity 501 are provided with a plurality of strip-shaped grooves 6 in a circumferential array manner, and the bottom of the lower mold cavity 502 is rotatably connected with a threaded core column 7;
the bottom of the threaded core column 7 is fixedly connected with a circular shaft 10, one end of each circular shaft 10 penetrates through the side face of the machining table 1 and extends to the bottom of the machining table 1, a synchronous rotating mechanism is connected among the circular shafts 10, a synchronous lifting mechanism is connected to the upper reverse mold 3, a rotary material shifting mechanism is connected to the machining table 1, the synchronous rotating mechanism acts on the process that the threaded core column 7 and a plastic bottle cap rotate and are separated, the synchronous lifting mechanism acts on the upper reverse mold 3 to lift along with the plastic bottle cap synchronously, and continues to act on the upper reverse mold 3 to lift after the plastic bottle cap is separated from the side face of the threaded core column 7, so that a demolding space exists between the upper reverse mold 3 and the lower reverse mold 2, and the rotary material shifting mechanism is used for shifting out the plastic bottle cap between the upper reverse mold 3 and the lower reverse mold 2 to complete demolding; during operation, in the prior art, the upper die and the lower die are separated during demolding of the plastic bottle cap, and then the internal thread inside the plastic bottle cap and the lower die are separated, so that demolding is completed, in the actual demolding process, the upper die and the lower die are separated, and the cooled and shaped plastic bottle cap is rotated and separated from the surface of the lower die, so that the demolding process is complicated, the demolding efficiency is influenced, and repeated processing of the die is not facilitated, the technical scheme can solve the problems, and the specific working method comprises the following steps of folding and limiting the upper reverse die 3 and the lower reverse die 2 through a die assembly limiting mechanism, adding molten epoxy plastic between the upper die cavity 501 and the lower die cavity 502 into the casting container 8, arranging a resistance heating plate on the inner wall of the casting container 8, continuously generating heat, and maintaining the melting effect, and exhausting hot air generated in the pouring process through the exhaust pipe 9, a check valve 901 is arranged in a bottom port of the exhaust pipe 9 to prevent molten plastic raw materials from overflowing, molten epoxy plastic is cooled and formed between an upper mold cavity 501 and a lower mold cavity 502 to form the shape of a plastic bottle cap, threads on the side surface of a threaded core column 7 enable internal threads to be formed inside the plastic bottle cap, anti-skid threads are formed on the side surface of the plastic bottle cap through a strip-shaped groove 6 on the side surface of the upper mold cavity 501 to facilitate the plastic bottle cap to be screwed when the plastic bottle cap is in threaded connection with a bottle opening, the strip-shaped groove 6 enables the side surface of the plastic bottle cap not to rotate in the upper mold cavity 501, when demolding is needed, the limit between an upper reverse mold 3 and a lower reverse mold 2 by a mold limiting mechanism is cancelled, the circular shaft 10 is rotated under the action of a synchronous rotating mechanism, the circular shaft 10 drives the threaded core column 7 to rotate, the threaded core column 7 is in threaded connection with the internal threads on the plastic bottle cap, so that the plastic bottle cap moves upwards in the rotating process of the threaded core column 7, the synchronous lifting mechanism is used for enabling the upper reverse die 3 to move upwards along the first limiting pin 4 in sliding connection with the side face, so that the plastic bottle cap is limited and prevented from rotating all the time in the lifting process of the plastic bottle cap, after the plastic bottle cap is lifted to the top of the threaded core column 7 and separated from the threaded core column 7, the synchronous lifting mechanism continues to drive the upper reverse die 3 to move upwards, the plastic bottle cap is separated from the upper die cavity 501, a certain gap is formed between the upper reverse die 3 and the lower reverse die 2, the plastic bottle cap can be separated, through the synchronous rotating mechanism and the synchronous lifting mechanism, the plastic bottle cap is enabled to be separated from the threaded core column 7 synchronously in the process that the upper reverse die 3 and the lower reverse die 2 are far away, the internal thread of the plastic bottle cap is separated from the threaded core column, the demolding treatment of the bottle cap is facilitated, the demolding treatment of the detachment treatment of the die body by means of a manipulator is not needed, and the quantity of the dies is reduced on one hand, convenient moulding plastics, on the other hand has improved the degree of automation to the drawing of patterns of this kind of forming part that has screw thread and vertical groove concurrently of bottle lid, the effectual efficiency that improves the drawing of patterns has shortened the time that needs between the pouring process once more, is favorable to improving the production efficiency of mould.
As an embodiment of the invention, the die assembly limiting mechanism comprises a plurality of rectangular blocks 11, the rectangular blocks 11 are fixedly connected to one side of the upper reverse die 3, guide arc surfaces are arranged on two sides of each rectangular block 11, a first rotating ring 12 is rotatably connected to the top of the machining table 1, a plurality of limiting baffles 13 are fixedly connected to the top of the first rotating ring 12 in a circumferential array manner, the limiting baffles 13 are respectively positioned at the tops of the adjacent rectangular blocks 11, circular grooves 14 are arranged on two sides of the top of each rectangular block 11, circular blocks 15 are placed in the circular grooves 14, first springs 16 are fixedly connected between the circular blocks 15 and the bottoms of the circular grooves 14, and balls 17 are rotatably connected to the tops of the circular blocks 15; when the die works, the first rotating ring 12 is rotated towards one side, the limit baffle 13 on the first rotating ring 12 is separated from the top of the rectangular block 11, the upper reverse die 3 can move along the first limit pin 4 to be away from the lower reverse die 2, the first rotating ring 12 is rotated back, the limit baffle 13 returns to the top of the rectangular block 11 along the guide arc surface on the side surface of the rectangular block 11, the upper reverse die 3 can be limited to move upwards, when the limit baffle 13 is positioned at the top of the rectangular block 11, the ball 17 is extruded at the bottom of the limit baffle 13 to move downwards, the ball 17 extrudes the circular block 15, the first spring 16 between the circular block 15 and the circular groove 14 is extruded to generate compression deformation, so that the upper reverse die 3 is more tightly attached to the lower reverse die 2, a gap between the upper reverse die 3 and the lower reverse die 2 is prevented, the forming effect of the die is improved, when the limit baffle 13 moves at the top of the rectangular block 11, the bottom of the limit baffle 13 is in contact with the surface of the ball 17, sliding friction is converted into rolling friction, friction force is reduced, and the first rotating ring 12 can rotate conveniently.
As an embodiment of the invention, the synchronous rotating mechanism comprises a rotating shaft 18 and a plurality of first gears 19, the rotating shaft 18 is rotatably connected to the top of the processing table 1, the first gears 19 are all fixedly connected to one end of the circular shaft 10, one end of the rotating shaft 18 penetrates through the side surface of the processing table 1 and extends to the lower part to be fixedly connected with a second gear 20, the first gears 19 are all meshed with the second gear 20, the bottom of the processing table 1 is fixedly provided with a first motor 21, an output shaft of the first motor 21 is fixedly connected with a third gear 22, and the third gear 22 is meshed with the second gear 20; during operation, start first motor 21, the output shaft of first motor 21 drives third gear 22 and rotates, and third gear 22 drives second gear 20 through meshing with second gear 20, and a plurality of first gears 19 all mesh with second gear 20 mutually, at second gear 20 pivoted in-process, drive a plurality of first gears 19 synchronous rotation to make first gear 19 drive circular shaft 10 synchronous rotation.
As an embodiment of the present invention, the synchronous lifting mechanism includes a fourth gear 23, a plurality of connection frames 24 and connection rings 25, the fourth gear 23 is fixedly connected to the top of the rotating shaft 18, the connection frames 24 are fixedly connected to the top of the processing table 1, a fifth gear 26 and a connection screw 27 are respectively rotatably connected to two ends of the top of the connection frame 24, one end of the connection screw 27 penetrates through the side surface of the connection frame 24 and extends to the lower side, the fifth gear 26 is engaged with the fourth gear 23, the top of the fifth gear 26 and the top of the connection screw 27 are respectively and fixedly connected with a transmission wheel 28, adjacent transmission wheels 28 are respectively transmitted by a transmission belt 29, the connection rings 25 are fixedly connected to the side surface of the upper reverse mold 3, an inner ring surface of the connection ring 25 is provided with an internal thread, and the connection rings 25 are threadedly connected to the surfaces of the connection screws 27; in the process of rotating the rotating shaft 18, the fourth gear 23 is driven to rotate, the fourth gear 23 drives the fifth gear 26 to rotate through the meshing action of the plurality of fifth gears 26, the fifth gear 26 rotates to drive the transmission wheel 28 at the top to rotate, the transmission wheel 28 drives the connecting screw 27 at the bottom of another transmission wheel 28 to rotate through the transmission action of the transmission belt 29, the connecting screw 27 is in threaded connection with the adjacent connecting ring 25, and in the process of rotating the connecting screw 27, the upper inverted die 3 moves upwards along the first limit pin 4.
As an embodiment of the invention, a circular hole 30 is formed at the top of the upper reverse die 3, the circular hole 30 is communicated with the upper die cavity 501, a filling pin 31 is placed above the circular hole 30, one end of the filling pin 31 is positioned in the circular hole 30, second limit pins 32 are inserted at two ends of the top of the filling pin 31, the second limit pins 32 are fixedly connected to the tops of the adjacent upper reverse dies 3, second springs 33 are sleeved on the second limit pins 32, T-shaped rods 34 are fixedly connected to the tops of the connecting frames 24, and one end of each T-shaped rod 34 is positioned above the filling pin 31; when the plastic bottle cap lifting mechanism works, after the plastic bottle cap is separated from the threaded core column 7, the upper reverse mold 3 continues to move upwards through the synchronous lifting mechanism, in the process that the upper reverse mold 3 continues to lift, one end of the T-shaped rod 34 blocks the top of the filling pin 31, in addition, the filling pin 31 is prevented from lifting when the upper reverse mold 3 continues to lift, two ends of the filling pin 31 slide along the second limiting pin 32 and extrude the second spring 33, and the second spring 33 is compressed and deformed, so that in the process that the upper reverse mold 3 lifts, the position of the filling pin 31 is kept unchanged, the plastic bottle cap is prevented from being adhered to the upper mold cavity 501 in the cooling forming process, and the plastic bottle cap is prevented from being generated along with the condition that the upper reverse mold 3 lifts together, in the process that the upper reverse mold 3 continues to lift, the plastic bottle cap is positioned at the gap between the upper reverse mold 3 and the lower reverse mold 2, and the plastic bottle cap can be conveniently taken out.
As an embodiment of the invention, the rotating material shifting mechanism comprises a second rotating ring 35, the second rotating ring 35 is rotatably connected to the top of the processing table 1, the second rotating ring 35 is connected with a rotating mechanism, the side surface of the second rotating ring 35 is hinged with a plurality of shifting plates 36 in a circumferential array manner, the side surface of each shifting plate 36 is provided with a groove with a downward opening, and the hinged parts of the shifting plates 36 and the second rotating ring 35 are fixedly connected with a torsion spring 37; when the automatic stripping machine works, after a plastic bottle cap is separated from a threaded core column 7, the upper reverse mold 3 continues to move upwards to enable the plastic bottle cap to be positioned in a gap between the upper reverse mold 3 and the lower reverse mold 2, the width of the poking plate 36 just can enter the gap between the upper reverse mold 3 and the lower reverse mold 2, the rotating mechanism is started, the rotating mechanism drives the second rotating ring 35 to continue to rotate, the second rotating ring 35 drives the lateral poking plate 36 to rotate and pass along the gap between the upper reverse mold 3 and the lower reverse mold 2, the plastic bottle cap is poked to one side, the groove in the lateral surface of the poking plate 36 enables the connecting screw 27 just to pass through the groove, so that the plastic bottle cap is separated from the gap between the upper reverse mold 3 and the lower reverse mold 2, automatic stripping is realized, when an error occurs, the rotating mechanism is started too early, when the poking plate 36 rotates to one side of the upper reverse mold 3 and the lower reverse mold 2, the torsional spring 37 at the hinge position acts to enable the poking plate 36 to rotate around the hinge position, the toggle plate 36 is reset under the elastic reset action of the torsion spring 37, so that the toggle plate 36 enters between the upper die sinking 3 and the lower die sinking 2, and in the process that the upper die sinking 3 continuously rises, the toggle plate 36 also synchronously continuously moves, and the phenomenon of blocking is avoided.
As an embodiment of the present invention, the rotating mechanism comprises a second motor 38 and a circular gear ring 39, the second motor 38 is fixedly connected to the top of the processing table 1, the circular gear ring 39 is fixedly connected to the inner wall of the second rotating ring 35, the output end of the second motor 38 is fixedly connected with a sixth gear 40, and the circular gear ring 39 is meshed with the sixth gear 40; during operation, when the plastic bottle cap between the upper reverse mold 3 and the lower reverse mold 2 needs to be shifted out for discharging, the second motor 38 is started, the second motor 38 drives the sixth gear 40 to rotate, the sixth gear 40 drives the circular gear ring 39 to rotate through being meshed with the circular gear ring 39, and the circular gear ring 39 is fixedly connected to the second rotating ring 35, so that the second rotating ring 35 rotates, and the shifting plate 36 is driven to shift the plastic bottle cap for discharging.
As an embodiment of the present invention, one side of the lower reverse mold 2 is fixedly connected with a collecting housing 41, an inclined plate 42 is placed inside each collecting housing 41, a plurality of third springs 43 are fixedly connected between the bottom of the inclined plate 42 and the top of the processing table 1, and the processing table 1 is provided with collecting holes 44 at positions below one side of the inclined plate 42; during operation, when the toggle plate 36 passes through the gap between the upper die 3 and the lower die 2, the plastic bottle cap is toggled to one side of the collecting shell 41 and enters the collecting shell 41, the plastic bottle cap falls into the top of the inclined plate 42, the third spring 43 between the inclined plate 42 and the processing platform 1 can buffer the plastic bottle cap when falling into the inclined plate 42, the damage of collision to the plastic bottle cap is reduced, the plastic bottle cap slides along the inclined plane of the inclined plate 42 and falls into the collecting hole 44, and a worker can set a collecting bag below the collecting hole 44 to collect the falling plastic bottle cap.
As an embodiment of the present invention, two sides of the inner wall of the collecting casing 41 are hinged with rotating plates 45, one side adjacent to each rotating plate 45 is fixedly connected with a sponge cushion 46, arc-shaped pins 47 are inserted on the rotating plates 45, the arc centers of the arc-shaped pins 47 are located on the rotating axes of the hinged positions of the rotating plates 45, one ends of the arc-shaped pins 47 are fixedly connected to the inner wall of the adjacent collecting casing 41, the arc-shaped pins 47 between the inner wall of the collecting casing 41 and the rotating plates 45 are sleeved with fourth springs 48, and two ends of the fourth springs 48 are respectively fixedly connected with the inner wall of the collecting casing 41 and the rotating plates 45; in operation, when the plastic bottle lid was stirred to collecting in the casing 41, the plastic bottle lid is when removing to the direction of rotor plate 45, can contact with the foam-rubber cushion 46 of rotor plate 45 one side, alleviate the damage that the collision produced, and at the in-process of collision extrusion rotor plate 45, rotor plate 45 removes along arc round pin 47, and produce extrusion deformation to fourth spring 48, thereby cushion the collision process, two rotor plates 45 draw close to the position of collecting hole 44, when making the plastic bottle lid slide to collecting hole 44 along the inclined plane of hang plate 42, be located central point all the time, play and guide the plastic bottle lid to the best discharge position, be favorable to avoiding appearing the emergence of card material condition.
As an embodiment of the present invention, a movable groove 49 is formed on one side of the collecting housing 41, an inclined bar 50 is fixedly connected to one side of the inclined plate 42 after penetrating through the movable groove 49 and extending to the outside of the movable groove 49, one side of the inclined bar 50 of the inclined plate 42 extends out of the movable groove 49 and is located outside the collecting housing 41, a guiding inclined plane is formed at the higher end of the inclined bar 50, and a plurality of toggle bumps 51 distributed in a linear array are formed at the top of the inclined bar 50; in operation, after the poking plate 36 passes through the gap between the upper and lower reverse dies 3 and 2 and the plastic bottle cap is fluctuated into the collecting shell 41, one end of the poking plate 36 contacts with the arc edge side of the inclined strip 50, and the poking plate 36 is overturned along the hinged position, so that through the collecting shell 41, when the poking plate 36 rotates reversely, the bottom of the poking plate 36 is close to the lower end of the inclined strip 50 and passes through the upper part of the inclined strip 50, the bottom of the poking plate 36 presses the inclined strip 50 and the inclined plate 42 downwards in the process of along the guide inclined surface of the inclined strip 50, the bottom of the poking plate 36 gradually contacts with the top of the inclined strip 50 along with the ascending of the guide inclined surface of the inclined strip 50, the inclined strip 50 is fixedly connected to one side of the inclined plate 42, the third spring 43 at the bottom of the inclined plate 42 is pressed to generate compression deformation and upwards extend through the elastic action, and the inclined strip 50 generates vibration through the contact extrusion generated by the poking plate 36 and the convex block 51, the inclined strip 50 vibrates up and down along the movable groove 49 and drives the inclined plate 42 to vibrate, the plastic bottle caps falling above the inclined plate 42 move along the inclined plane through vibration and fall into the collecting holes 44, the plastic bottle caps are prevented from falling on the inclined plate 42, and the collecting effect of the plastic bottle caps is guaranteed.
The working principle of the invention is as follows:
during operation, in the prior art, the upper die and the lower die are separated during demolding of the plastic bottle cap, and then the internal thread inside the plastic bottle cap and the lower die are separated, so that demolding is completed, in the actual demolding process, the upper die and the lower die are separated, and the cooled and shaped plastic bottle cap is rotated and separated from the surface of the lower die, so that the demolding process is complicated, the demolding efficiency is influenced, and repeated processing of the die is not facilitated, the technical scheme can solve the problems, and the specific working method comprises the following steps of folding and limiting the upper reverse die 3 and the lower reverse die 2 through a die assembly limiting mechanism, adding molten epoxy plastic between the upper die cavity 501 and the lower die cavity 502 into the casting container 8, arranging a resistance heating plate on the inner wall of the casting container 8, continuously generating heat, and maintaining the melting effect, and exhausting hot air generated in the pouring process through the exhaust pipe 9, a check valve 901 is arranged in a bottom port of the exhaust pipe 9 to prevent molten plastic raw materials from overflowing, molten epoxy plastic is cooled and formed between an upper mold cavity 501 and a lower mold cavity 502 to form the shape of a plastic bottle cap, threads on the side surface of a threaded core column 7 enable internal threads to be formed inside the plastic bottle cap, anti-skid threads are formed on the side surface of the plastic bottle cap through a strip-shaped groove 6 on the side surface of the upper mold cavity 501 to facilitate the plastic bottle cap to be screwed when the plastic bottle cap is in threaded connection with a bottle opening, the strip-shaped groove 6 enables the side surface of the plastic bottle cap not to rotate in the upper mold cavity 501, when demolding is needed, the limit between an upper reverse mold 3 and a lower reverse mold 2 by a mold limiting mechanism is cancelled, the circular shaft 10 is rotated under the action of a synchronous rotating mechanism, the circular shaft 10 drives the threaded core column 7 to rotate, the threaded core column 7 is in threaded connection with the internal threads on the plastic bottle cap, so that the plastic bottle cap moves upwards in the rotating process of the threaded core column 7, the synchronous lifting mechanism is used for enabling the upper reverse die 3 to move upwards along the first limiting pin 4 in sliding connection with the side face, so that the plastic bottle cap is limited and prevented from rotating all the time in the lifting process of the plastic bottle cap, after the plastic bottle cap is lifted to the top of the threaded core column 7 and separated from the threaded core column 7, the synchronous lifting mechanism continues to drive the upper reverse die 3 to move upwards, the plastic bottle cap is separated from the upper die cavity 501, a certain gap is formed between the upper reverse die 3 and the lower reverse die 2, the plastic bottle cap can be separated, through the synchronous rotating mechanism and the synchronous lifting mechanism, the plastic bottle cap is enabled to be separated from the threaded core column 7 synchronously in the process that the upper reverse die 3 and the lower reverse die 2 are far away, the internal thread of the plastic bottle cap is separated from the threaded core column, the demolding treatment of the bottle cap is facilitated, the demolding treatment of the detachment treatment of the die body by means of a manipulator is not needed, and the quantity of the dies is reduced on one hand, convenient moulding plastics, on the other hand has improved the degree of automation to the forming part drawing of patterns of this kind of bottle lid that has screw thread and vertical groove concurrently, the effectual efficiency that improves the drawing of patterns has shortened the time that needs between the pouring process once more, is favorable to improving the production efficiency of mould.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined by the appended claims and their equivalents.
Claims (10)
1. The plastic mold convenient for demolding comprises a processing table (1), wherein the top of the processing table (1) is fixedly connected with a plurality of lower reverse molds (2) in a circumferential array manner, the top of each lower reverse mold (2) is provided with an upper reverse mold (3), the side surfaces of each lower reverse mold (2) are fixedly connected with two first limiting pins (4), each upper reverse mold (3) is connected onto the adjacent first limiting pin (4) in a sliding manner, one side of each upper reverse mold (3) opposite to the corresponding lower reverse mold (2) is respectively provided with an upper mold cavity (501) and a lower mold cavity (502), the top of each upper reverse mold (3) is fixedly communicated with a casting container (8) and an exhaust pipe (9), one end of each casting container (8) and one end of each exhaust pipe (9) are communicated with the upper mold cavity (501), and the plastic mold is characterized in that the upper reverse molds (3) are jointly connected with a limiting mechanism, a plurality of strip-shaped grooves (6) are formed in the side surface of the upper die cavity (501) in a circumferential array, and the bottom of the lower die cavity (502) is rotatably connected with a threaded core column (7);
the bottom of the threaded core column (7) is fixedly connected with a round shaft (10), one end of the round shaft (10) penetrates through the side face of the processing table (1) and extends to the bottom of the processing table (1), a synchronous rotating mechanism is connected between the round shafts (10), a synchronous lifting mechanism is connected onto the upper reverse mold (3), a rotating material stirring mechanism is connected onto the processing table (1), the synchronous rotating mechanism acts on the process that the threaded core column (7) and the plastic bottle cap are rotated and separated, the synchronous lifting mechanism acts on the upper reverse mold (3) to lift synchronously along with the plastic bottle cap and continues to act on the upper reverse mold (3) to lift after the plastic bottle cap is separated from the side face of the threaded core column (7), so that a demolding space exists between the upper reverse mold (3) and the lower reverse mold (2), and the rotating material stirring mechanism of the bottle cap is used for stirring out the plastic between the upper reverse mold (3) and the lower reverse mold (2), and (5) demolding is finished.
2. The plastic mold convenient for demolding as claimed in claim 1, wherein the mold closing limiting mechanism comprises a plurality of rectangular blocks (11), the rectangular blocks (11) are fixedly connected to one side of the upper reverse mold (3), guide arc surfaces are formed on two sides of each rectangular block (11), a first rotating ring (12) is rotatably connected to the top of the processing table (1), a plurality of limiting baffle plates (13) are fixedly connected to the top of the first rotating ring (12) in a circumferential array manner, the limiting baffle plates (13) are respectively located at the tops of the adjacent rectangular blocks (11), circular grooves (14) are formed in two sides of the top of each rectangular block (11), circular blocks (15) are placed in the circular grooves (14), and first springs (16) are fixedly connected between the circular blocks (15) and the bottoms of the circular grooves (14), the top of the circular block (15) is connected with a ball (17) in a rolling way.
3. The plastic mold convenient for demolding as recited in claim 1, wherein the synchronous rotating mechanism comprises a rotating shaft (18) and a plurality of first gears (19), the rotating shaft (18) is rotatably connected to the top of the processing table (1), the first gears (19) are fixedly connected to one end of the circular shaft (10), one end of the rotating shaft (18) penetrates through the side surface of the processing table (1) and extends to the lower side to be fixedly connected with a second gear (20), the first gears (19) are respectively meshed with the second gear (20), a first motor (21) is fixedly mounted at the bottom of the processing table (1), a third gear (22) is fixedly connected to an output shaft of the first motor (21), and the third gear (22) is meshed with the second gear (20).
4. The plastic mold convenient for demolding as recited in claim 3, wherein the synchronous lifting mechanism comprises a fourth gear (23), a plurality of connecting frames (24) and a connecting ring (25), the fourth gear (23) is fixedly connected to the top of the rotating shaft (18), the connecting frames (24) are fixedly connected to the top of the processing table (1), a fifth gear (26) and a connecting screw (27) are respectively rotatably connected to two ends of the top of the connecting frame (24), one end of the connecting screw (27) penetrates through the side surface of the connecting frame (24) and extends to the lower side, the fifth gear (26) is engaged with the fourth gear (23), a driving wheel (28) is fixedly connected to the tops of the fifth gear (26) and the connecting screw (27), and the adjacent driving wheels (28) are driven by a belt (29), the connecting ring (25) is fixedly connected to the side face of the upper reverse die (3), internal threads are formed in the inner ring face of the connecting ring (25), and the connecting ring (25) is in threaded connection with the surface of the connecting screw rod (27).
5. The plastic mold convenient for demolding as claimed in claim 4, wherein a circular hole (30) is formed in the top of the upper reverse mold (3), the circular hole (30) is communicated with the upper mold cavity (501), a filling pin (31) is placed above the circular hole (30), one end of the filling pin (31) is located in the circular hole (30), second limiting pins (32) are inserted into two ends of the top of the filling pin (31), the second limiting pins (32) are fixedly connected to the tops of the adjacent upper reverse molds (3), second springs (33) are sleeved on the second limiting pins (32), T-shaped rods (34) are fixedly connected to the tops of the connecting frames (24), and one end of each T-shaped rod (34) is located above the filling pin (31).
6. The plastic mold convenient for demolding as recited in claim 5, wherein the rotating material-stirring mechanism comprises a second rotating ring (35), the second rotating ring (35) is rotatably connected to the top of the processing table (1), the rotating mechanism is connected to the second rotating ring (35), a plurality of stirring plates (36) are hinged to the side surface of the second rotating ring (35) in a circumferential array, a groove with a downward opening is formed in the side surface of each stirring plate (36), and a torsion spring (37) is fixedly connected to the hinged position of each stirring plate (36) and the second rotating ring (35).
7. A plastic mold facilitating demolding according to claim 6, wherein the rotating mechanism comprises a second motor (38) and a circular gear ring (39), the second motor (38) is fixedly connected to the top of the processing table (1), the circular gear ring (39) is fixedly connected to the inner wall of the second rotating ring (35), a sixth gear (40) is fixedly connected to the output end of the second motor (38), and the circular gear ring (39) is meshed with the sixth gear (40).
8. The plastic mold convenient for demolding as recited in claim 7, wherein a collection housing (41) is fixedly connected to one side of the lower reverse mold (2), an inclined plate (42) is disposed inside the collection housing (41), a plurality of third springs (43) are fixedly connected between the bottom of the inclined plate (42) and the top of the processing table (1), and collection holes (44) are formed in positions of the processing table (1) below one side of the inclined plate (42).
9. The plastic mold convenient for demolding according to claim 8, wherein two sides of the inner wall of the collecting shell (41) are hinged to rotating plates (45), one adjacent side of each rotating plate (45) is fixedly connected with a sponge cushion (46), arc-shaped pins (47) are inserted into the rotating plates (45), arc centers of the arc-shaped pins (47) are located on rotation axes of hinged positions of the rotating plates (45), one ends of the arc-shaped pins (47) are fixedly connected to the adjacent inner wall of the collecting shell (41), the inner wall of the collecting shell (41) and the portion, between the rotating plates (45), of each arc-shaped pin (47) are sleeved with a fourth spring (48), and two ends of each fourth spring (48) are respectively fixedly connected with the inner wall of the collecting shell (41) and the corresponding rotating plate (45).
10. The plastic mold convenient for demolding as recited in claim 9, wherein a movable groove (49) is formed in one side of the collection housing (41), one side of the inclined plate (42) penetrates through the movable groove (49) and extends to the outside of the movable groove (49), an inclined bar (50) is fixedly connected to the rear side of the inclined plate (42), one side of the inclined bar (50) of the inclined plate (42) extends out of the movable groove (49) and is located outside the collection housing (41), a guide inclined plane is formed in the higher end of the inclined bar (50), and a plurality of toggle lugs (51) distributed in a linear array are arranged at the top of the inclined bar (50).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210220911.XA CN114603755A (en) | 2022-03-08 | 2022-03-08 | Plastic mold convenient for demolding |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210220911.XA CN114603755A (en) | 2022-03-08 | 2022-03-08 | Plastic mold convenient for demolding |
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| CN114603755A true CN114603755A (en) | 2022-06-10 |
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| CN202210220911.XA Withdrawn CN114603755A (en) | 2022-03-08 | 2022-03-08 | Plastic mold convenient for demolding |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115071063A (en) * | 2022-07-08 | 2022-09-20 | 杭州凯美模具有限公司 | High-precision surface manufacturing mold system based on vehicle lamp and control method |
| CN117282925A (en) * | 2023-11-21 | 2023-12-26 | 江苏新隆通用设备有限公司 | Quick demoulding mould for guide wheel machining |
| CN117623597A (en) * | 2023-11-02 | 2024-03-01 | 安徽金冠玻璃有限责任公司 | A kind of glassware rapid prototyping equipment and its forming process |
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2022
- 2022-03-08 CN CN202210220911.XA patent/CN114603755A/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115071063A (en) * | 2022-07-08 | 2022-09-20 | 杭州凯美模具有限公司 | High-precision surface manufacturing mold system based on vehicle lamp and control method |
| CN115071063B (en) * | 2022-07-08 | 2023-12-15 | 杭州凯美模具有限公司 | High-precision surface manufacturing die system based on car lamp and control method |
| CN117623597A (en) * | 2023-11-02 | 2024-03-01 | 安徽金冠玻璃有限责任公司 | A kind of glassware rapid prototyping equipment and its forming process |
| CN117282925A (en) * | 2023-11-21 | 2023-12-26 | 江苏新隆通用设备有限公司 | Quick demoulding mould for guide wheel machining |
| CN117282925B (en) * | 2023-11-21 | 2024-01-30 | 江苏新隆通用设备有限公司 | Quick demoulding mould for guide wheel machining |
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Application publication date: 20220610 |