CN111873303A - Injection mold and injection molding method thereof - Google Patents
Injection mold and injection molding method thereof Download PDFInfo
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- CN111873303A CN111873303A CN202010804184.2A CN202010804184A CN111873303A CN 111873303 A CN111873303 A CN 111873303A CN 202010804184 A CN202010804184 A CN 202010804184A CN 111873303 A CN111873303 A CN 111873303A
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- plate
- movable
- cavity
- mold
- condensate
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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
- B29C45/03—Injection moulding apparatus
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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
- B29C45/1769—Handling of moulded articles or runners, e.g. sorting, stacking, grinding of runners
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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
- B29C45/4005—Ejector constructions; Ejector operating mechanisms
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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
- B29C45/1769—Handling of moulded articles or runners, e.g. sorting, stacking, grinding of runners
- B29C2045/177—Handling of moulded articles or runners, e.g. sorting, stacking, grinding of runners stacking moulded articles
Abstract
The invention discloses an injection mold, which comprises an injection device body; four groups of limiting mounting rods are uniformly arranged on the side wall of the fixed mounting plate, a fixed die is fixedly mounted in the middle of each limiting mounting rod, a feeding channel is arranged between each fixed die and each group of fixed mounting plates, a spiral feeding rod is arranged in each feeding channel and connected with the output end of a spiral feeding motor, each spiral feeding motor is mounted on the side wall of each group of fixed mounting plates, a fixing plate is sleeved on the outer wall of each feeding channel, and each fixing plate is mounted on the outer wall of each limiting mounting rod; the automatic feeding device has the advantages that the automatic feeding device is easy to mold, can be automatically ejected out after molding and is convenient for later collection.
Description
Technical Field
The invention belongs to the technical field of molds, and relates to an injection mold, in particular to an injection mold and an injection molding method thereof.
Background
The mould is used for making the tool of the shaping article, this kind of tool is formed by various parts, different moulds are formed by different parts, it mainly realizes the processing of the article appearance through the change of the physical state of the shaping material, it is the name of "industrial mother".
In the prior art, the mold needs to be taken out manually by workers during injection molding, and the problems of labor consumption and high risk exist during taking out the mold; the injection molding mechanism is not easy to demould, so that the cooling rate of a forming mold is low, the forming of an internal plastic part is slow, the problem of pulling deformation is easy to occur in the taking-out process, and the product quality is seriously influenced; set up the manipulator usually and snatch and put things in good order the plastic mold after the shaping, there is the structure complicacy, and the input cost is high, and work efficiency is low, and in the later stage use, the manipulator trouble inconvenient problem of maintaining.
Disclosure of Invention
The invention aims to solve the problems that in the prior art, a mold needs to be manually taken out by workers during injection molding, and the mold is labor-consuming and dangerous when taken out; the injection molding mechanism is not easy to demould, so that the cooling rate of a forming mold is low, the forming of an internal plastic part is slow, the problem of pulling deformation is easy to occur in the taking-out process, and the product quality is seriously influenced; generally, the mechanical arm is arranged to grab and stack the formed plastic mold, the structure is complex, the input cost is high, the working efficiency is low, and in the later-stage use process, the mechanical arm fails and is inconvenient to maintain, and the injection mold and the injection molding method thereof are provided.
The purpose of the invention can be realized by the following technical scheme:
an injection mold comprises an injection device body;
the injection molding device body comprises a bracket, a feeding hopper, a feeding channel, a spiral feeding motor, a limiting mounting rod, a fixed plate, a fixed die, a movable die, a sliding sleeve, a movable plate, a fixed mounting plate and a driving mechanism; the two sides of the top surface of the support are respectively provided with a fixed mounting plate, four groups of limiting mounting rods are uniformly arranged on the side wall of the fixed mounting plate, the middle part of each limiting mounting rod is fixedly provided with a fixed die, a feeding channel is arranged between the fixed die and the fixed mounting plates, a spiral feeding rod is arranged in the feeding channel and is connected with the output end of a spiral feeding motor, the spiral feeding motor is arranged on the side wall of the fixed mounting plates, the top surface of the feeding channel is provided with a feeding hole, and a feeding funnel is arranged at the feeding hole; the outer wall of the feeding channel is sleeved with a fixed plate, and the fixed plate is arranged on the outer wall of the limiting installation rod;
the other side of the fixed die, which is far away from the feeding channel, is provided with a movable die, the movable die is slidably mounted on the outer wall of the limiting mounting rod through a sliding sleeve, the other side of the movable die, which is far away from the fixed die, is provided with a movable plate, the movable plate is slidably mounted on the outer wall of the limiting mounting rod, and a driving mechanism is arranged between the movable plate and the movable die.
Preferably, the driving mechanism comprises an air cylinder, a lifting plate and a movable plate, the air cylinder is mounted on the support, the output end of the air cylinder is connected with the lifting plate, and two sides of the lifting plate are movably connected with the side wall of the movable plate and the side wall of the movable die through the movable plate respectively.
Preferably, be provided with the die cavity in the movable mould, and be provided with the working chamber of installation ejection mechanism in the movable mould, ejection mechanism includes die cavity board, fore-set, elastic component, and the die cavity board slides and sets up in the die cavity, is provided with the fore-set in the die cavity board, and the fore-set sets up along the perpendicular bisector symmetry of die cavity, and the fore-set is L shape structure, and the horizontal part of fore-set slides and extends to the working chamber in, and the vertical portion of fore-set passes through the elastic component and installs on the inner wall of die cavity.
Preferably, the elastic part comprises a barrel, a spring, a sliding plate and a sliding rod, the barrel is installed on the inner wall of the cavity, the spring is arranged inside the barrel, the other end of the spring is connected with the sliding plate, the sliding plate is connected with the inner wall of the barrel in a sliding mode, one side, far away from the spring, of the sliding plate is connected with one end of the sliding rod, the other end of the sliding rod penetrates through the barrel in a sliding mode, and the other end of the sliding rod is connected with the vertical portion of.
Preferably, the side wall of the fixed die, which is close to the movable die, is provided with a guide post, the side wall of the movable die, which is close to the fixed die, is provided with a guide hole matched with the guide post, the vertical part of the ejection post is provided with an extrusion hole matched with the guide post, and the guide hole and the extrusion hole are positioned on the same horizontal plane.
Preferably, a cooling mechanism is arranged in the working cavity on the movable mold, and the cooling mechanism comprises a condensate outlet pipe, a condensate inlet pipe, a condensation plate, a heat conducting fin, a radiating fin and a heat conducting plate; be provided with the heat-conducting plate on the lateral wall of die cavity, the rectangular conducting strip of multiunit evenly is provided with on the lateral wall that the die cavity was kept away from to the heat-conducting plate, be provided with the fin between the conducting strip, the fin is connected with the conducting strip laminating, the fin is installed on the lateral wall of condensing plate, fin and condensing plate are hollow structure, the inner chamber of fin and the inner chamber of condensing plate communicate each other, one side top of condensing plate is provided with the condensate exit tube, the inner chamber of movable mould is extended to the discharge end of condensate exit tube, the opposite side bottom of condensing plate is provided with the condensate and advances the pipe, the condensate advances.
Preferably, install down the feed bin on the support, the feed bin is located cover half and movable mould under, and the discharge gate and the receipts material storehouse intercommunication of feed bin down receive the material storehouse and install on the support, are provided with receiving agencies in receiving the material storehouse.
Preferably, the material receiving mechanism comprises a material pushing cylinder, a limiting rod, a material pushing plate and a finished product bin; the material receiving bin is provided with a horizontal discharging channel, the discharging channel is communicated with a discharging port of the lower bin, the material pushing cylinder is installed on the outer wall of the material receiving bin, the output end of the material pushing cylinder extends to the discharging channel of the material receiving bin in a sliding mode, the output end of the material pushing cylinder is connected with the material pushing plate, limiting rods are arranged on two sides of the material pushing cylinder respectively, one end of each limiting rod penetrates through the side wall of the material receiving bin in a sliding mode, one end of each limiting rod is connected with the material pushing plate, and a finished product bin is obliquely arranged on one side of the.
An injection molding method of an injection mold, comprising the steps of:
s1, adding a plastic raw material into a feeding channel through a feeding funnel, enabling the plastic material to enter a cavity in a movable die under the action of a spiral feeding motor driving a spiral feeding rod to rotate, then injecting condensate into a condensate inlet pipe, enabling the condensate to enter an inner cavity of a condensation plate along the condensate inlet pipe and simultaneously flow into inner cavities of cooling fins, and then discharging the condensate from a condensate outlet pipe, so that the condensate and heat conducting fins on a heat conducting plate are subjected to heat transfer, and cooling and forming are performed on a plastic die in the cavity;
s2, after the plastic mold is molded in the cavity, controlling the cylinder to drive the lifting plate to move downwards, and separating the movable mold from the fixed mold through the movable plate, wherein the side wall of the fixed mold, which is close to the movable mold, is provided with a guide post, the side wall of the movable mold, which is close to the fixed mold, is provided with a guide hole matched with the guide post, and the vertical part of the ejection post is provided with an extrusion hole matched with the guide post, so that when the fixed mold is separated from the movable mold, the ejection post moves under the action of the restoring force of a spring in the elastic part, and drives the cavity plate to move, thereby ejecting the molded plastic mold in the cavity;
s3, enabling the ejected plastic molds to fall into the discharging bin and enter the discharging channel of the collecting bin for stacking, and when the molded plastic molds fill the discharging channel of the collecting bin, starting the material pushing cylinder to drive the material pushing plate to move, and pushing the plastic molds in the whole row into the finished product bin for collection.
Compared with the prior art, the invention has the beneficial effects that: the plastic raw materials are added into the feeding channel through the feeding funnel, then the plastic materials enter a cavity in the movable die under the action of the spiral feeding motor driving the spiral feeding rod to rotate, then, injecting condensate into the condensate inlet pipe, wherein the condensate enters the inner cavity of the condensing plate along the condensate inlet pipe and simultaneously flows into the inner cavity of the radiating fins, then the condensate is discharged from the condensate outlet pipe, so that the condensate and the heat conducting fins on the heat conducting plate carry out heat transfer, thereby cooling and molding the plastic mould in the cavity, the arranged heat-conducting fins and the heat-conducting plate can quickly transfer the heat of the unformed mould in the cavity, and the heat radiating fins on the condensing plate can fully transfer heat and the condensate, thereby greatly improving the molding efficiency of the mold, meanwhile, the condensate outlet pipe and the condensate inlet pipe are arranged, so that the mould can be circularly cooled, and the forming efficiency and quality of the mould are further improved;
after the plastic mold is molded in the cavity, the control cylinder drives the lifting plate to move downwards, and the movable mold is separated from the fixed mold through the movable plate, because the side wall of the fixed die close to the movable die is provided with the guide post, the side wall of the movable die close to the fixed die is provided with the guide hole matched with the guide post, the vertical part of the top post is provided with the extrusion hole matched with the guide post, when the fixed die and the movable die are separated, the ejection column moves under the action of the restoring force of the spring in the elastic piece and drives the cavity plate to move, thereby ejecting the formed plastic mould in the cavity, and through the arranged elastic piece, the ejection column and the cavity plate, the fixed die and the movable die can be separated, and the die in the cavity can be automatically ejected out, so that the labor intensity is greatly reduced, the time is saved, the working efficiency is improved, the problem that the manual workpiece taking is easy to scald is effectively solved, and the safety protection is increased;
the ejecting plastic mold falls into the discharging bin and enters the discharging channel of the receiving bin to be stacked, when the formed plastic mold is fully arranged in the discharging channel of the receiving bin, the material pushing cylinder is started to drive the material pushing plate to move, and the whole row of plastic molds are pushed into the finished product bin to be collected.
Drawings
In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.
Fig. 1 is a schematic overall perspective structure of the present invention.
Fig. 2 is an overall front view of the present invention.
FIG. 3 is a schematic perspective view of the connection between the fixed mold and the movable mold.
FIG. 4 is a schematic structural diagram of a moving mold according to the present invention.
Fig. 5 is a schematic structural view of the elastic member of the present invention.
Fig. 6 is a schematic perspective view of the receiving bin of the present invention.
In the figure: 1. a support; 2. a charging hopper; 3. a feed channel; 4. a spiral feeding motor; 5. a limiting mounting rod; 6. a fixing plate; 7. fixing a mold; 8. moving the mold; 9. a sliding sleeve; 10. moving the plate; 11. fixing the mounting plate; 12. a cylinder; 13. a lifting plate; 14. a movable plate; 15. discharging a bin; 16. a material receiving bin; 17. a material pushing cylinder; 18. a limiting rod; 19. a material pushing plate; 20. a finished product bin; 21. a guide post; 22. a guide hole; 23. a cavity; 24. a cavity plate; 25. a condensate outlet pipe; 26. feeding condensate into a pipe; 27. a condensing plate; 28. a heat conductive sheet; 29. a heat sink; 30. a heat conducting plate; 31. a top pillar; 32. an elastic member; 33. a barrel; 34. a spring; 35. a slide plate; 36. a slide bar.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-6, an injection mold includes an injection device body;
the injection molding device body comprises a bracket 1, a feeding hopper 2, a feeding channel 3, a spiral feeding motor 4, a limiting installation rod 5, a fixed plate 6, a fixed die 7, a movable die 8, a sliding sleeve 9, a movable plate 10, a fixed installation plate 11 and a driving mechanism; the two sides of the top surface of the support 1 are respectively provided with a fixed mounting plate 11, four groups of limiting mounting rods 5 are uniformly arranged on the side wall of the fixed mounting plate 11, the middle part of each limiting mounting rod 5 is fixedly provided with a fixed die 7, a feeding channel 3 is arranged between each fixed die 7 and the corresponding fixed mounting plate 11, a spiral feeding rod is arranged in each feeding channel 3 and is connected with the output end of a spiral feeding motor 4, each spiral feeding motor 4 is arranged on the side wall of the corresponding fixed mounting plate 11, the top surface of each feeding channel 3 is provided with a feeding hole, and a feeding hopper 2 is arranged at the feeding hole; the outer wall of the feeding channel 3 is sleeved with a fixed plate 6, and the fixed plate 6 is arranged on the outer wall of the limiting installation rod 5;
the other side of the fixed die 7, which is far away from the feeding channel 3, is provided with a movable die 8, the movable die 8 is slidably mounted on the outer wall of the limiting mounting rod 5 through a sliding sleeve 9, the other side of the movable die 8, which is far away from the fixed die 7, is provided with a movable plate 10, the movable plate 10 is slidably mounted on the outer wall of the limiting mounting rod 5, and a driving mechanism is arranged between the movable plate 10 and the movable die 8.
The driving mechanism comprises an air cylinder 12, a lifting plate 13 and a movable plate 14, the air cylinder 12 is mounted on the support 1, the output end of the air cylinder 12 is connected with the lifting plate 13, and two sides of the lifting plate 13 are movably connected with the side wall of the movable plate 10 and the side wall of the movable mold 8 through the movable plate 14 respectively.
Be provided with die cavity 23 in the movable mould 8, and be provided with the working chamber of installation ejection mechanism in the movable mould 8, ejection mechanism includes die cavity board 24, fore-set 31, elastic component 32, die cavity board 24 slides and sets up in die cavity 23, is provided with fore-set 31 in the die cavity board 24, fore-set 31 sets up along the perpendicular bisector symmetry of die cavity 23, fore-set 31 is L shape structure, the horizontal part of fore-set 31 slides and extends to the working chamber in, the vertical portion of fore-set 31 passes through elastic component 32 and installs on the inner wall of die cavity 23.
The elastic part 32 comprises a cylinder 33, a spring 34, a sliding plate 35 and a sliding rod 36, the cylinder 33 is installed on the inner wall of the cavity 23, the spring 34 is arranged inside the cylinder 33, the other end of the spring 34 is connected with the sliding plate 35, the sliding plate 35 is connected with the inner wall of the cylinder 33 in a sliding manner, one side, away from the spring 34, of the sliding plate 35 is connected with one end of the sliding rod 36, the other end of the sliding rod 36 penetrates through the cylinder 33 in a sliding manner, and the other end of the sliding rod 36 is connected with the vertical part of the.
The side wall of the fixed die 7 close to the movable die 8 is provided with a guide post 21, the side wall of the movable die 8 close to the fixed die 7 is provided with a guide hole 22 matched with the guide post 21, the vertical part of the top post 31 is provided with an extrusion hole matched with the guide post 21, the guide hole 22 and the extrusion hole are positioned on the same horizontal plane, after the plastic die is molded in the die cavity 23, the control cylinder 12 drives the lifting plate 13 to move downwards, and the movable die 8 is separated from the fixed die 7 through the movable plate 14, because the guide post 21 is arranged on the side wall of the fixed die 7 close to the movable die 8, the guide hole 22 matched with the guide post 21 is arranged on the side wall of the movable die 8 close to the fixed die 7, the vertical part of the top post 31 is provided with the extrusion hole matched with the guide post 21, when the fixed die 7 is separated from the movable die 8, the top post 31 is moved under the restoring force of the spring 34 in the elastic, thereby ejecting the fashioned plastic mold in the die cavity 23, through elastic component 32, fore-set 31 and the die cavity board 24 that set up, can be when making cover half 7 and movable mould 8 separation, ejecting the mould in the die cavity 23 is automatic, greatly reduced intensity of labour, the time of having practiced thrift has improved work efficiency, and can effectively solve the manual problem of getting the piece scald easily appear, increased safety protection.
A cooling mechanism is arranged in the working cavity on the moving die 8, and comprises a condensate outlet pipe 25, a condensate inlet pipe 26, a condensing plate 27, a heat conducting fin 28, a radiating fin 29 and a heat conducting plate 30; a heat conducting plate 30 is arranged on the side wall of the cavity 23, a plurality of groups of rectangular heat conducting fins 28 are uniformly arranged on the side wall of the heat conducting plate 30 far away from the cavity 23, radiating fins 29 are arranged among the heat conducting fins 28, the radiating fins 29 are attached to the heat conducting fins 28, the radiating fins 29 are arranged on the side wall of the condensing plate 27, the radiating fins 29 and the condensing plate 27 are both of a hollow structure, the inner cavities of the radiating fins 29 and the inner cavity of the condensing plate 27 are communicated with each other, a condensate outlet pipe 25 is arranged at the top of one side of the condensing plate 27, the discharge end of the condensate outlet pipe 25 extends out of the inner cavity of the movable mold 8, a condensate inlet pipe 26 is arranged at the bottom of the other side of the condensing plate 27, the feed end of the condensate inlet pipe 26 extends out of the inner cavity of the movable mold 8, condensate is injected into the condensate inlet pipe, make the condensate and the conducting strip 28 on the heat-conducting plate 30 carry out the heat transfer, thereby cool off the shaping to the plastic mold in the die cavity 23, the conducting strip 28 and the heat-conducting plate 30 that set up can be with the not forming die's in the die cavity 23 heat fast transfer, and fin 29 on the condensing plate 27 can make heat and condensate fully transmit, the fashioned efficiency of mould has been improved greatly, and simultaneously, condensate exit tube 25 and condensate advance the setting of managing 26, can circulate the cooling to the mould, further improve the fashioned efficiency of mould and quality.
Install down feed bin 15 on the support 1, lower feed bin 15 is located cover half 7 and movable mould 8 under, and the discharge gate and the receipts feed bin 16 intercommunication of feed bin 15 receive the feed bin 16 and install on support 1, are provided with receiving agencies in receiving the feed bin 16.
The material receiving mechanism comprises a material pushing cylinder 17, a limiting rod 18, a material pushing plate 19 and a finished product bin 20; a horizontal discharging channel is arranged on the collecting bin 16 and is communicated with a discharging port of the discharging bin 15, a pushing cylinder 17 is arranged on the outer wall of the collecting bin 16, the output end of the pushing cylinder 17 extends to the discharging channel of the collecting bin 16 in a sliding manner, the output end of the pushing cylinder 17 is connected with a pushing plate 19, two sides of the pushing cylinder 17 are respectively provided with a limiting rod 18, one end of each limiting rod 18 penetrates through the side wall of the collecting bin 16 in a sliding manner, one end of each limiting rod 18 is connected with the pushing plate 19, one side of the discharging channel is obliquely provided with a finished product bin 20, an ejected plastic mold falls into the discharging bin 15 and enters the discharging channel of the collecting bin 16 to be stacked, when the formed plastic mold is filled in the discharging channel of the collecting bin 16, the pushing cylinder 17 is started to drive the pushing plate 19 to move, the whole row of plastic molds are pushed into the finished product bin 20 to be collected, and the prior art is solved, the mechanical arm is usually arranged to grab and stack the formed plastic mold, and compared with the receiving mechanism, the receiving mechanism has the problems of complex structure, high investment cost, low working efficiency and inconvenience in maintenance due to the fact that the mechanical arm breaks down in the later use process.
An injection molding method of an injection mold, comprising the steps of:
s1, adding a plastic raw material into a feeding channel 3 through a feeding funnel 2, then enabling the plastic material to enter a cavity 23 in a moving mold 8 under the action of a spiral feeding motor 4 driving a spiral feeding rod to rotate, then injecting condensate into a condensate inlet pipe 26, enabling the condensate to enter an inner cavity of a condensation plate 27 along the condensate inlet pipe 26 and simultaneously flow into an inner cavity of a cooling fin 29, and then discharging the condensate from a condensate outlet pipe 25, so that the condensate and a heat conducting fin 28 on a heat conducting plate 30 are subjected to heat transfer, and cooling and forming are performed on a plastic mold in the cavity 23;
s2, after the plastic mold is molded in the cavity 23, the control cylinder 12 drives the lifting plate 13 to move downwards, the movable mold 8 is separated from the fixed mold 7 through the movable plate 14, because the guide post 21 is arranged on the side wall of the fixed mold 7 close to the movable mold 8, the guide hole 22 matched with the guide post 21 is arranged on the side wall of the movable mold 8 close to the fixed mold 7, and the extrusion hole matched with the guide post 21 is arranged on the vertical part of the ejection post 31, when the fixed mold 7 is separated from the movable mold 8, the ejection post 31 moves under the action of the restoring force of the spring 34 in the elastic piece 32, and the cavity plate 24 is driven to move, so that the molded plastic mold in the cavity 23 is ejected;
s3, enabling the ejected plastic molds to fall into the discharging bin 15 and enter the discharging channel of the collecting bin 16 for stacking, and when the formed plastic molds fill the discharging channel of the collecting bin 16, starting the material pushing cylinder 17 to drive the material pushing plate 19 to move, and pushing the plastic molds in the whole row into the finished product bin 20 for collection.
The working principle of the invention is as follows: the plastic raw material is added into the feeding channel 3 through the feeding funnel 2, then the spiral feeding motor 4 drives the spiral feeding rod to rotate, so that the plastic material enters the cavity 23 in the moving mold 8, then, condensate is injected into the condensate inlet pipe 26, the condensate enters the inner cavity of the condensing plate 27 along the condensate inlet pipe 26 and simultaneously flows into the inner cavity of the radiating fin 29 and is discharged from the condensate outlet pipe 25, so that the condensate and the heat conducting fins 28 on the heat conducting plate 30 carry out heat transfer, thereby carrying out cooling molding on the plastic mold in the cavity 23, the arranged heat conducting fins 28 and the heat conducting plate 30 can rapidly transfer the heat of an unformed mold in the cavity 23, the radiating fin 29 on the condensing plate 27 can fully transfer the heat and the condensate, the molding efficiency of the mold is greatly improved, meanwhile, the condensate outlet pipe 25 and the condensate inlet pipe 26 are arranged, the mould can be cooled circularly, so that the forming efficiency and quality of the mould are further improved;
after the plastic mold is molded in the cavity 23, the control cylinder 12 drives the lifting plate 13 to move downwards, the movable mold 8 is separated from the fixed mold 7 through the movable plate 14, the guide post 21 is arranged on the side wall of the fixed mold 7 close to the movable mold 8, the guide hole 22 matched with the guide post 21 is arranged on the side wall of the movable mold 8 close to the fixed mold 7, and the extrusion hole matched with the guide post 21 is arranged on the vertical part of the ejection post 31, so that when the fixed mold 7 is separated from the movable mold 8, the ejection post 31 is moved under the restoring force of the spring 34 in the elastic piece 32, and the cavity plate 24 is driven to move, so that the molded plastic mold in the cavity 23 is ejected out, and through the elastic piece 32, the ejection post 31 and the cavity plate 24, the mold in the cavity 23 can be automatically ejected out while the fixed mold 7 is separated from the movable mold 8, thereby greatly reducing the labor intensity, saving the time and improving the working efficiency, the problem that scalding is easy to occur when a workpiece is taken manually can be effectively solved, and safety protection is increased;
the ejected plastic molds fall into the discharging bin 15 and enter the discharging channel of the receiving bin 16 to be stacked, when the formed plastic molds are placed in the discharging channel of the receiving bin 16, the material pushing cylinder 17 is started to drive the material pushing plate 19 to move, and the plastic molds in a whole row are pushed into the finished product bin 20 to be collected.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise forms disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (9)
1. An injection mold, its characterized in that: comprises an injection molding device body;
the injection molding device body comprises a support (1), a feeding hopper (2), a feeding channel (3), a spiral feeding motor (4), a limiting installation rod (5), a fixed plate (6), a fixed die (7), a movable die (8), a sliding sleeve (9), a movable plate (10), a fixed installation plate (11) and a driving mechanism; the automatic feeding device comprises a bracket (1), fixed mounting plates (11) are respectively mounted on two sides of the top surface of the bracket (1), four groups of limiting mounting rods (5) are uniformly arranged on the side walls of the fixed mounting plates (11), a fixed die (7) is fixedly mounted in the middle of each limiting mounting rod (5), a feeding channel (3) is arranged between each fixed die (7) and each group of fixed mounting plates (11), a spiral feeding rod is arranged in each feeding channel (3) and connected with the output end of a spiral feeding motor (4), each spiral feeding motor (4) is mounted on the side wall of each group of fixed mounting plates (11), a feeding port is formed in the top surface of each feeding channel (3), and a feeding hopper (2) is mounted at the feeding port; a fixing plate (6) is sleeved on the outer wall of the feeding channel (3), and the fixing plate (6) is installed on the outer wall of the limiting installation rod (5);
the other side of the fixed die (7) far away from the feeding channel (3) is provided with a movable die (8), the movable die (8) is slidably mounted on the outer wall of the limiting mounting rod (5) through a sliding sleeve (9), the other side of the movable die (8) far away from the fixed die (7) is provided with a movable plate (10), the movable plate (10) is slidably mounted on the outer wall of the limiting mounting rod (5), and a driving mechanism is arranged between the movable plate (10) and the movable die (8).
2. An injection mould according to claim 1, characterized in that the driving mechanism comprises a cylinder (12), a lifting plate (13) and a movable plate (14), the cylinder (12) is mounted on the bracket (1), the output end of the cylinder (12) is connected with the lifting plate (13), and two sides of the lifting plate (13) are movably connected with the side wall of the movable plate (10) and the side wall of the movable mould (8) through the movable plate (14), respectively.
3. An injection mould according to claim 1, characterized in that a cavity (23) is arranged in the movable mould (8), a working cavity for installing an ejection mechanism is arranged in the movable mould (8), the ejection mechanism comprises a cavity plate (24), a top pillar (31) and an elastic member (32), the cavity plate (24) is arranged in the cavity (23) in a sliding manner, the top pillar (31) is arranged in the cavity plate (24), the top pillar (31) is symmetrically arranged along the perpendicular bisector of the cavity (23), the top pillar (31) is of an L-shaped structure, the horizontal part of the top pillar (31) extends into the working cavity in a sliding manner, and the vertical part of the top pillar (31) is arranged on the inner wall of the cavity (23) through the elastic member (32).
4. An injection mould according to claim 3, characterized in that the elastic member (32) comprises a cylinder (33), a spring (34), a sliding plate (35) and a sliding rod (36), the cylinder (33) is installed on the inner wall of the cavity (23), the spring (34) is arranged inside the cylinder (33), the other end of the spring (34) is connected with the sliding plate (35), the sliding plate (35) is connected with the inner wall of the cylinder (33) in a sliding manner, one side of the sliding plate (35) far away from the spring (34) is connected with one end of the sliding rod (36), the other end of the sliding rod (36) penetrates through the cylinder (33) in a sliding manner, and the other end of the sliding rod (36) is connected with the vertical part of the top pillar (31).
5. An injection mould according to claim 1, characterized in that the side wall of the fixed mould (7) close to the movable mould (8) is provided with a guide post (21), the side wall of the movable mould (8) close to the fixed mould (7) is provided with a guide hole (22) adapted to the guide post (21), the vertical part of the top post (31) is provided with an extrusion hole adapted to the guide post (21), and the guide hole (22) and the extrusion hole are positioned on the same horizontal plane.
6. An injection mould according to claim 3, characterized in that a cooling mechanism is arranged in the working cavity of the movable mould (8), and comprises a condensate outlet pipe (25), a condensate inlet pipe (26), a condensation plate (27), heat-conducting fins (28), radiating fins (29) and a heat-conducting plate (30); be provided with heat-conducting plate (30) on the lateral wall of die cavity (23), evenly be provided with multiunit rectangular conducting strip (28) on the lateral wall that die cavity (23) was kept away from in heat-conducting plate (30), be provided with fin (29) between conducting strip (28), fin (29) are connected with conducting strip (28) laminating, fin (29) are installed on the lateral wall of condenser plate (27), fin (29) and condenser plate (27) are hollow structure, the inner chamber of fin (29) and the inner chamber of condenser plate (27) communicate each other, one side top of condenser plate (27) is provided with condensate exit tube (25), the discharge end of condensate exit tube (25) extends the inner chamber of movable mould (8), the opposite side bottom of condenser plate (27) is provided with condensate and advances pipe (26), the feed end that the condensate advances pipe (26) extends the inner chamber of movable mould (8).
7. An injection mold according to claim 1, characterized in that the support (1) is provided with a lower bin (15), the lower bin (15) is positioned under the fixed mold (7) and the movable mold (8), a discharge port of the lower bin (15) is communicated with a receiving bin (16), the receiving bin (16) is arranged on the support (1), and a receiving mechanism is arranged in the receiving bin (16).
8. The injection mold according to claim 7, wherein the material receiving mechanism comprises a material pushing cylinder (17), a limiting rod (18), a material pushing plate (19) and a finished product bin (20); the material receiving bin (16) is provided with a horizontal discharging channel, the discharging channel is communicated with a discharging port of the lower bin (15), the pushing cylinder (17) is installed on the outer wall of the material receiving bin (16), the output end of the pushing cylinder (17) extends to the discharging channel of the material receiving bin (16) in a sliding mode, the output end of the pushing cylinder (17) is connected with the pushing plate (19), limiting rods (18) are arranged on two sides of the pushing cylinder (17) respectively, one end of each limiting rod (18) penetrates through the side wall of the material receiving bin (16) in a sliding mode, one end of each limiting rod (18) is connected with the corresponding pushing plate (19), and a finished product bin (20) is obliquely arranged on one side of the discharging channel.
9. An injection molding method of an injection mold according to any one of claims 1 to 8, characterized in that the injection molding method of the injection mold comprises the steps of:
s1, adding a plastic raw material into a feeding channel (3) through a feeding funnel (2), then enabling the plastic material to enter a cavity (23) in a movable mold (8) under the action of driving a spiral feeding rod to rotate by a spiral feeding motor (4), then injecting condensate into a condensate inlet pipe (26), enabling the condensate to enter an inner cavity of a condensation plate (27) along the condensate inlet pipe (26) and simultaneously flow into an inner cavity of a radiating fin (29), and then discharging the condensate from a condensate outlet pipe (25), enabling the condensate and a heat conducting fin (28) on a heat conducting plate (30) to carry out heat transfer, and further cooling and forming the plastic mold in the cavity (23);
s2, after the plastic mold is molded in the cavity (23), the cylinder (12) is controlled to drive the lifting plate (13) to move downwards, the movable mold (8) is separated from the fixed mold (7) through the movable plate (14), the guide post (21) is arranged on the side wall of the fixed mold (7) close to the movable mold (8), the guide hole (22) matched with the guide post (21) is formed in the side wall of the movable mold (8) close to the fixed mold (7), and the extrusion hole matched with the guide post (21) is formed in the vertical part of the ejection post (31), so that when the fixed mold (7) is separated from the movable mold (8), the ejection post (31) moves under the restoring force of the spring (34) in the elastic piece (32), and the cavity plate (24) is driven to move, and the molded plastic mold in the cavity (23) is ejected out;
s3, enabling the ejected plastic molds to fall into the lower storage bin (15) and enter the discharge channel of the collecting bin (16) for stacking, and when the formed plastic molds are placed in the discharge channel of the collecting bin (16), starting the material pushing cylinder (17) to drive the material pushing plate (19) to move, and pushing the plastic molds in the whole row into the finished product storage bin (20) for collection.
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| CN202010804184.2A CN111873303A (en) | 2020-08-12 | 2020-08-12 | Injection mold and injection molding method thereof |
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| CN202010804184.2A CN111873303A (en) | 2020-08-12 | 2020-08-12 | Injection mold and injection molding method thereof |
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Effective date of registration: 20210125 Address after: 321025 Zhenggang mountain village, Bailong Qiao Town, Wucheng District, Jinhua, Zhejiang Applicant after: JINHUA GUANRUI TECHNOLOGY Co.,Ltd. Address before: 324000 room 609, butterfly Road, Fushan street, Kecheng District, Quzhou, Zhejiang, 609 Applicant before: QUZHOU FENGFAN TECHNOLOGY Co.,Ltd. |