CN112519147A - Injection mold and injection method for miniature microphone shell - Google Patents
Injection mold and injection method for miniature microphone shell Download PDFInfo
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- CN112519147A CN112519147A CN202011355958.4A CN202011355958A CN112519147A CN 112519147 A CN112519147 A CN 112519147A CN 202011355958 A CN202011355958 A CN 202011355958A CN 112519147 A CN112519147 A CN 112519147A
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- bevel gear
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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
- B29C45/40—Removing or ejecting moulded articles
- B29C2045/4063—Removing or ejecting moulded articles preventing damage to articles caused by the ejector
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- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses an injection mold and an injection molding method for a miniature microphone shell. According to the invention, through the actions of the lifting mechanism, the driving motor, the second driving wheel, the third driving wheel, the mold core, the first driven wheel, the first threaded rod, the second threaded rod, the first threaded groove, the third threaded rod, the second threaded groove, the fourth threaded rod, the inclined guide post and the ejector rod, the inclined guide post can effectively drive the ejector rod to move inwards and is always in contact with and fixed with the miniature microphone shell plastic part, so that the inner wall of the microphone shell can be prevented from being scratched by the mold core when the miniature microphone shell plastic part is demolded, the operation is convenient, the demolding effect is good, and the appearance quality and the production efficiency of the manufactured miniature microphone shell plastic part can be effectively improved.
Description
Technical Field
The invention relates to the technical field of shell injection molds, in particular to a micro microphone shell injection mold and an injection molding method.
Background
Injection mold is a tool for producing plastic products, can be quick the plastic products of making complete structure and accurate size in batches, the structure of mould is because the structure and the shape of the variety of plastics and plastic products are different and vary widely, but basic structure is the same, generally all constitute by movable mould and cover half two parts, the movable mould is installed on the movable mould board, the cover half is installed on the fixed die plate, movable mould and cover half closed become the gating system and die cavity when injection moulding, movable mould and cover half separation take out plastic products during the die sinking can, in order to increase speed, standard die carrier is adopted to injection mold mostly.
At present, when the microphone shell injection mold is actually used, a larger friction force exists between the mold core of the existing micro microphone shell injection mold and the inner wall of the microphone shell, and when the mold core is demolded, the inner wall of the microphone shell is easily scratched by the mold core, so that the normal use of the microphone shell is influenced, and the attractiveness and stability of the microphone shell are influenced.
Therefore, it is necessary to provide an injection mold and an injection method for a micro microphone housing to solve the above problems.
Disclosure of Invention
The invention aims to provide an injection mold and an injection method for a miniature microphone shell, which have the advantages that through the actions of a lifting mechanism, a driving motor, a second driving wheel, a third driving wheel, a mold core, a first driven wheel, a first threaded rod, a second threaded rod, a first threaded groove, a third threaded rod, a second threaded groove, a fourth threaded rod, an inclined guide post and a push rod, the inclined guide post can effectively drive the push rod to move inwards and is always in contact with and fixed with a miniature microphone shell plastic part, the inner wall of the microphone shell can be prevented from being easily scratched by the mold core when the miniature microphone shell plastic part is demoulded, the operation is convenient, the demoulding effect is good, the appearance quality and the production efficiency of the prepared miniature microphone shell plastic part can be effectively improved, and the defects in the technology are overcome.
In order to achieve the above purpose, the invention provides the following technical scheme: the invention provides an injection mold for a micro microphone shell, which comprises a lower die holder, a base, a fixed die fixing plate, a fixed die plate, a movable die fixing plate and an upper die holder, wherein the lower die holder is arranged at the bottom of the base, the base is arranged at the bottom of the fixed die fixing plate, the fixed die fixing plate is arranged at the bottom of the fixed die plate, the fixed die plate is arranged at the bottom of the movable die plate, the movable die plate is arranged at the bottom of the movable die fixing plate, the movable die fixing plate is arranged at the bottom of the upper die holder, two ends of the bottom of the lower die holder are symmetrically welded with side plates, lifting mechanisms are arranged in the two side plates, the top ends of the lifting mechanisms are fixedly connected with two ends of the bottom of the upper die holder, a die cavity is arranged in the movable die plate, a core is arranged in the, the inner bottom plate of the base is provided with a driving motor which is vertically arranged, the output end of the driving motor is sequentially and rotatably connected with a first bevel gear, a first driving wheel, a second driving wheel and a third driving wheel through a rotating shaft, the output end of the driving motor is connected with the bottom of the core through the rotating shaft, two ends of the inside of the fixed die plate are symmetrically provided with fixed cylinders, the inner bottoms of the two fixed cylinders are respectively provided with a first inner chamber, the tops of the two first inner chambers are respectively provided with a first thread groove, the tops of the two first thread grooves are respectively provided with a second thread groove, one side of the second driving wheel, which is opposite to the third driving wheel, penetrates through a belt and extends to the corresponding first inner chamber to be rotatably connected with a first driven wheel, the center of the top ends of the two first driven wheels is respectively rotated with a first threaded rod, and one side of the top end of the two first threaded rods, which extends to the first thread grooves, two the top welding that the second threaded rod extends to in the second thread groove has the third threaded rod, two the meshing of top one side of third threaded rod is connected with the fourth threaded rod, two the top of fourth threaded rod all has oblique guide pillar through the welding of connecting rod, two the top of oblique guide pillar runs through in proper order after the solid fixed cylinder and runs through two ejector pins of correspondence and be sliding connection.
Preferably, the outer wall of the bottom of the mold core is provided with external threads.
Preferably, sealing gaskets are arranged at the joints of the two ends of the bottom of the cavity and the top end of the fixed die plate.
Preferably, the top both ends symmetrical welding of base has the deflector, two the deflector contacts with the both sides of cover half fixed plate, fixed die plate, movable mould board and movable mould fixed plate respectively.
Preferably, two the top both ends symmetrical welding of side board has the guide bar, every the top of guide bar all runs through the upper die base and is sliding connection, every the limiting plate has all been welded on the top of guide bar, every the outer wall of guide bar all is connected with reset spring, every reset spring's both ends are connected with side board top and upper die base bottom respectively.
Preferably, one side of the top of the first bevel gear is in meshing connection with a second bevel gear, one side of the first driving wheel, which is far away from the second bevel gear, is in rotating connection with a second driven wheel through a belt, the center of the bottom end of the second driven wheel is in rotating connection with a third bevel gear through a rotating shaft, and one side of the bottom of the third bevel gear is in meshing connection with a fourth bevel gear.
Preferably, the inner bottom of each side panel is provided with a second inner cavity, and the top ends of the second inner cavities are provided with third thread grooves.
Preferably, the two lifting mechanisms comprise fifth bevel gears arranged in corresponding second inner cavities, the two fifth bevel gears penetrate through a rotating shaft and extend into the base to be respectively connected with a fourth bevel gear and a second bevel gear in a rotating mode, one side of the bottom of each fifth bevel gear is meshed with a sixth bevel gear, the bottom of each sixth bevel gear is provided with a fourth driving wheel, one side of each fourth driving wheel is rotatably connected with a fourth driven wheel through a belt, the center of the top end of each fourth driven wheel and the center of the top end of each fourth driving wheel are rotatably connected with a fifth threaded rod, one end of each fifth threaded rod extending into corresponding third threaded grooves is meshed with a sixth threaded rod, and the top end of each sixth threaded rod penetrating through a side panel is fixedly connected with the bottom of the upper die base.
In a second aspect, the present invention further provides an injection molding method for a housing of a miniature microphone, including the following steps:
the method comprises the following steps: firstly, sequentially installing a lower die holder, a base, a fixed die fixing plate, a fixed die plate, a movable die fixing plate and an upper die holder on injection molding machine equipment, adjusting positions, closing the movable die plate and the fixed die plate, and then performing injection molding;
step two: after the injection molding is finished, firstly, controlling a driving motor to rotate forwards, driving the second driving wheel, the third driving wheel and the mold core to rotate by the driving motor, driving a first driven wheel to rotate by the second driving wheel and the third driving wheel, driving a second threaded rod to rotate and lift by two first driven wheels through a first threaded rod, driving a third threaded rod to rotate and lift by two second threaded rods, driving a fourth threaded rod to rotate by two third threaded rods, and driving a mandril to move inwards through an inclined guide post to be in contact with and fixed with a miniature microphone shell plastic part;
step three: the driving motor drives the first bevel gear and the first driving wheel to rotate, the first bevel gear drives the second bevel gear to rotate, meanwhile, the first driving wheel drives the second driven wheel to rotate, the second driven wheel drives the third bevel gear to rotate, then, the third bevel gear and the second bevel gear drive the fifth bevel gear to rotate, the lifting mechanism can be driven to move upwards, and finally, the fourth driven wheel and the fourth driving wheel both drive the sixth threaded rod through the fifth threaded rod to drive the upper die base to move upwards, so that demoulding can be carried out;
step four: and finally, the fourth driven wheel and the fourth driving wheel drive the sixth threaded rod through the fifth threaded rod to drive the upper die base to move downwards, so that resetting can be completed.
In the technical scheme, the invention provides the following technical effects and advantages:
1. through the effects of the lifting mechanism, the driving motor, the second driving wheel, the third driving wheel, the mold core, the first driven wheel, the first threaded rod, the second threaded rod, the first threaded groove, the third threaded rod, the second threaded groove, the fourth threaded rod, the inclined guide post and the ejector rod, the inclined guide post can effectively drive the ejector rod to move inwards and is always in contact with and fixed with the miniature microphone shell plastic part, the inner wall of the microphone shell can be prevented from being easily scratched by the mold core when the miniature microphone shell plastic part is demolded, the operation is convenient, the demolding effect is good, and the appearance quality and the production efficiency of the manufactured miniature microphone shell plastic part can be effectively improved;
2. through starting driving motor work, make first bevel gear drive the second bevel gear rotatory, first action wheel drives the second and rotates from the driving wheel, the second drives the third bevel gear rotation from the driving wheel, make third bevel gear and second bevel gear drive the fifth bevel gear rotatory, two fifth bevel gears drive the sixth bevel gear rotatory, two sixth bevel gears drive the fourth action wheel rotatory, two fourth action wheels drive the fourth and rotate from the driving wheel, thereby make the fifth threaded rod drive the sixth threaded rod and rise along the third thread groove rotation, and then drive the upper die base upward movement and carry out the drawing of patterns, stability when having improved the drawing of patterns, and then make drawing of patterns efficiency higher.
Drawings
In order to more clearly illustrate the embodiments of the present application or technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to the drawings.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is an internal cross-sectional view of the overall structure of the present invention;
FIG. 3 is a sectional view showing the internal structure of the fixing cylinder according to the present invention;
FIG. 4 is an enlarged view of the portion A of FIG. 2 according to the present invention;
FIG. 5 is an enlarged view of the portion B of FIG. 2 according to the present invention;
FIG. 6 is an enlarged view of the structure of the portion C of FIG. 2 according to the present invention;
fig. 7 is a side view of the overall structure of the present invention.
Description of reference numerals:
1. a lower die holder; 2. a base; 3. fixing a die fixing plate; 4. fixing a template; 5. moving the template; 6. a movable mold fixing plate; 7. an upper die holder; 8. a side panel; 9. a lifting mechanism; 10. a guide bar; 11. a return spring; 12. a limiting plate; 13. a drive motor; 14. a first bevel gear; 15. a first drive wheel; 16. a second drive wheel; 17. a third driving wheel; 18. a fixed cylinder; 19. a first inner chamber; 20. a first thread groove; 21. a second thread groove; 22. a first driven wheel; 23. a first threaded rod; 24. a second threaded rod; 25. a third threaded rod; 26. a fourth threaded rod; 27. an inclined guide post; 28. a core; 29. a cavity; 30. A chute; 31. a top rod; 32. a sealing gasket; 33. an external thread; 34. a second bevel gear; 35. a second driven wheel; 36. a third bevel gear; 37. a fourth bevel gear; 38. a fifth bevel gear; 39. a sixth bevel gear; 40. a fourth driving wheel; 41. a fourth driven wheel; 42. a fifth threaded rod; 43. a sixth threaded rod; 44. a second inner chamber; 45. a third thread groove; 46. a guide plate.
Detailed Description
In order to make the technical solutions of the present invention better understood, those skilled in the art will now describe the present invention in further detail with reference to the accompanying drawings.
The invention provides a micro microphone shell injection mold as shown in figures 1-7, which comprises a lower die holder 1, a base 2, a fixed die fixing plate 3, a fixed die plate 4, a movable die plate 5, a movable die fixing plate 6 and an upper die holder 7, wherein the lower die holder 1 is arranged at the bottom of the base 2, the base 2 is arranged at the bottom of the fixed die fixing plate 3, the fixed die fixing plate 3 is arranged at the bottom of the fixed die plate 4, the fixed die plate 4 is arranged at the bottom of the movable die plate 5, the movable die plate 5 is arranged at the bottom of the movable die fixing plate 6, the movable die fixing plate 6 is arranged at the bottom of the upper die holder 7, side panels 8 are symmetrically welded at two ends of the bottom of the lower die holder 1, lifting mechanisms 9 are arranged in the two side panels 8, the top ends of the lifting mechanisms 9 are fixedly connected with two ends of the bottom of the upper die holder 7, a cavity 29, two sliding grooves 30 are symmetrically formed in two sides of the cavity 29, a top rod 31 is slidably connected in each sliding groove 30, a driving motor 13 which is vertically arranged is arranged on an inner bottom plate of the base 2, an output end of the driving motor 13 is sequentially and rotatably connected with a first bevel gear 14, a first driving wheel 15, a second driving wheel 16 and a third driving wheel 17 through a rotating shaft, an output end of the driving motor 13 is connected with the bottom of the mold core 28 through the rotating shaft, fixed cylinders 18 are symmetrically arranged at two ends of the inner part of the fixed mold plate 4, first inner cavities 19 are formed in the inner bottoms of the two fixed cylinders 18, first thread grooves 20 are formed in the tops of the two first inner cavities 19, second thread grooves 21 are formed in the tops of the two first thread grooves 20, and the opposite sides of the second driving wheel 16 and the third driving wheel 17 extend to correspond to the first inner cavities 19 through a belt and are connected with first driven wheels 22, first threaded rods 23 are all rotated at the centers of the top ends of two first driven wheels 22, one side, extending to a first thread groove 20, of the top ends of the two first threaded rods 23 is meshed with a second threaded rod 24, the top ends, extending to a second thread groove 21, of the two second threaded rods 24 are welded with third threaded rods 25, one side of the top portions of the two third threaded rods 25 are meshed with fourth threaded rods 26, the top ends of the two fourth threaded rods 26 are welded with oblique guide pillars 27 through connecting rods, and the top ends, extending through a fixed cylinder 18, of the top ends of the oblique guide pillars 27 sequentially penetrate through the top ends corresponding to the two ejector rods 31 to form sliding connection.
Further, in the above technical solution, the outer wall of the bottom of the core 28 is provided with an external thread 33.
Furthermore, in the above technical scheme, the connecting parts of the two ends of the bottom of the cavity 29 and the top end of the fixed die plate 4 are provided with the sealing gaskets 32, and the cavity 29 during injection molding can be effectively sealed by the sealing gaskets 32, so that the quality of the micro microphone shell plastic part can be improved.
Further, in above-mentioned technical scheme, the top both ends symmetrical welding of base 2 has deflector 46, two deflector 46 contacts with the both sides of cover half fixed plate 3, fixed die plate 4, movable mould board 5 and movable mould fixed plate 6 respectively, through the design of deflector 46 to can make and avoid appearing because movable mould board 5 and movable mould fixed plate 6 take place to rock and then lead to the phenomenon that the outward appearance of miniature microphone casing plastic parts damaged in the drawing of patterns.
Further, in above-mentioned technical scheme, two the top both ends symmetrical welding of side board 8 has guide bar 10, every the top of guide bar 10 all runs through upper die base 7 and is sliding connection, every limiting plate 12, every are all welded on the top of guide bar 10 the outer wall of guide bar 10 all is connected with reset spring 11, every reset spring 11's both ends are connected with side board 8 top and upper die base 7 bottom respectively, through guide bar 10, reset spring 11 and limiting plate 12's effect to can effectually realize reducing the energy that movable mould board 5 and movable mould fixed plate 6 required consumption when reseing through reset spring 11 when improving the drawing of patterns stability.
Further, in the above technical solution, a second bevel gear 34 is engaged and connected to one side of the top of the first bevel gear 14, a second driven wheel 35 is rotatably connected to one side of the first driving wheel 15 away from the second bevel gear 34 through a belt, a third bevel gear 36 is rotatably connected to the center of the bottom end of the second driven wheel 35 through a rotating shaft, and a fourth bevel gear 37 is engaged and connected to one side of the bottom of the third bevel gear 36.
Further, in the above technical solution, the inner bottom of the two side panels 8 is provided with a second inner chamber 44, and the top end of the two second inner chambers 44 is provided with a third thread groove 45.
Further, in the above technical solution, each of the two lifting mechanisms 9 includes a fifth bevel gear 38 disposed in a corresponding second inner chamber 44, the two fifth bevel gears 38 extend through a rotating shaft into the base 2 and are respectively rotatably connected with a fourth bevel gear 37 and a second bevel gear 34, one side of the bottom of each of the two fifth bevel gears 38 is respectively connected with a sixth bevel gear 39 in a meshing manner, the bottom ends of the two sixth bevel gears 39 are respectively provided with a fourth driving wheel 40, one side of each of the two fourth driving wheels 40 is respectively connected with a fourth driven wheel 41 in a rotating manner through a belt, the center of the top end of each of the fourth driven wheels 41 and the fourth driving wheels 40 is respectively connected with a fifth threaded rod 42 in a rotating manner, one end of each of the fifth threaded rods 42 extending into a corresponding third threaded groove 45 is respectively connected with a sixth threaded rod 43 in a meshing manner, each of the sixth threaded rods 43 extends through the top end of the side panel 8 and is fixedly connected with the bottom of the upper, by starting the driving motor 13, the first bevel gear 14 drives the second bevel gear 34 to rotate, the first driving wheel 15 drives the second driven wheel 35 to rotate, the second driven wheel 35 drives the third bevel gear 36 to rotate, the third bevel gear 36 and the second bevel gear 34 drive the fifth bevel gear 38 to rotate, the two fifth bevel gears 38 drive the sixth bevel gear 39 to rotate, the two sixth bevel gears 39 drive the fourth driving wheel 40 to rotate, the two fourth driving wheels 40 drive the fourth driven wheel 41 to rotate, the fifth threaded rod 42 drives the sixth threaded rod 43 to rotate and lift along the third threaded groove 45, the upper die holder 7 is driven to move upwards to perform demolding, the stability during demolding is improved, and the demolding efficiency is higher.
The injection molding method of the miniature microphone shell comprises the following steps:
the method comprises the following steps: firstly, a lower die holder 1, a base 2, a fixed die fixing plate 3, a fixed die plate 4, a movable die plate 5, a movable die fixing plate 6 and an upper die holder 7 are sequentially arranged on injection molding machine equipment, and the movable die plate 5 and the fixed die plate 4 are closed after the positions are adjusted for injection molding;
step two: after the injection molding is finished, firstly, the driving motor 13 is controlled to rotate forwards, the driving motor 13 drives the second driving wheel 16, the third driving wheel 17 and the mold core 28 to rotate, the second driving wheel 16 and the third driving wheel 17 drive the first driven wheels 22 to rotate, the two first driven wheels 22 drive the second threaded rods 24 to rotate and lift through the first threaded rods 23, the two second threaded rods 24 drive the third threaded rods 25 to rotate and lift, then the two third threaded rods 25 drive the fourth threaded rods 26 to rotate, and the two fourth threaded rods 26 drive the ejector rods 31 to move inwards through the inclined guide posts 27 to be in contact with and fixed with the micro microphone shell plastic parts;
step three: the driving motor 13 drives the first bevel gear 14 and the first driving wheel 15 to rotate, the first bevel gear 14 drives the second bevel gear 34 to rotate, meanwhile, the first driving wheel 15 drives the second driven wheel 35 to rotate, the second driven wheel 35 drives the third bevel gear 36 to rotate, then the third bevel gear 36 and the second bevel gear 34 drive the fifth bevel gear 38 to rotate, the lifting mechanism 9 can be driven to move upwards, and finally, the fourth driven wheel 41 and the fourth driving wheel 40 drive the sixth threaded rod 43 through the fifth threaded rod 42 to drive the upper die holder 7 to move upwards, and then the demolding can be carried out;
step four: and controlling the driving motor 13 to work reversely, controlling the lifting mechanism 9 to move downwards by the driving motor 13, and finally, driving the sixth threaded rod 43 to drive the upper die holder 7 to move downwards by the fourth driven wheel 41 and the fourth driving wheel 40 through the fifth threaded rod 42 to complete resetting.
The working principle of the invention is as follows:
referring to fig. 1-7 of the specification, the driving motor 13 is first started to operate, then the driving motor 13 drives the rotating shaft to drive the second driving wheel 16, the third driving wheel 17 and the mold core 28 to rotate, then the second driving wheel 16 and the third driving wheel 17 drive the first driven wheel 22 to rotate through a belt, the two first driven wheels 22 drive the first threaded rods 23 to rotate, the two first threaded rods 23 are meshed to drive the second threaded rods 24 to rotate and lift along the first threaded grooves 20, the two second threaded rods 24 are meshed to drive the third threaded rods 25 to rotate and lift along the second threaded grooves 21, then the two third threaded rods 25 are engaged to rotate to drive the fourth threaded rods 26 to rotate, and the two fourth threaded rods 26 drive the inclined guide posts 27 to move upwards along the ejector rods 31 through the connecting rods and simultaneously drive the ejector rods 31 to move inwards to be always in contact with and fixed with the micro microphone shell plastic part;
referring to the attached drawings 1, 2, 6 and 7 of the specification, firstly, the driving motor 13 is started to work, then the driving motor 13 drives the rotating shaft to drive the first bevel gear 14 and the first driving wheel 15 to rotate, the first bevel gear 14 is meshed to drive the second bevel gear 34 to rotate, meanwhile, the first driving wheel 15 drives the second driven wheel 35 to rotate through the belt, the second driven wheel 35 is meshed to drive the third bevel gear 36 to rotate, then the third bevel gear 36 and the second bevel gear 34 drive the fifth bevel gear 38 to rotate through the rotating shaft, the two fifth bevel gears 38 are meshed to drive the sixth bevel gear 39 to rotate, then the two sixth bevel gears 39 drive the fourth driving wheel 40 to rotate through the fifth threaded rod 42, the two fourth driving wheels 40 drive the fourth driven wheel 41 to rotate through the belt, and finally, each of the fourth driven wheel 41 and the fourth driving wheel 40 drives the sixth threaded rod 43 to rotate along the third threaded groove 45 through the fifth threaded rod 42 to lift and further drive the .
While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.
Claims (9)
1. The utility model provides a miniature microphone casing injection mold, includes die holder (1), base (2), cover half fixed plate (3), fixed die plate (4), movable mould board (5), movable mould fixed plate (6) and upper die base (7), its characterized in that: the die holder (1) is arranged at the bottom of the base (2), the base (2) is arranged at the bottom of the fixed die fixing plate (3), the fixed die fixing plate (3) is arranged at the bottom of the fixed die plate (4), the fixed die plate (4) is arranged at the bottom of the movable die plate (5), the movable die plate (5) is arranged at the bottom of the movable die fixing plate (6), the movable die fixing plate (6) is arranged at the bottom of the upper die holder (7), side panels (8) are symmetrically welded at two ends of the bottom of the die holder (1), two lifting mechanisms (9) are arranged in the side panels (8), the top ends of the lifting mechanisms (9) are fixedly connected with two ends of the bottom of the upper die holder (7), a die cavity (29) is arranged in the movable die plate (5), a core (28) is arranged in the die cavity (29), two sliding chutes (30) are symmetrically arranged at two sides of the die cavity (, every equal sliding connection has ejector pin (31) in spout (30), be provided with driving motor (13) that is perpendicular setting on the infrabasal plate of base (2), the output of driving motor (13) rotates in proper order through the pivot and is connected with first bevel gear (14), first action wheel (15), second action wheel (16) and third action wheel (17), just the output of driving motor (13) is connected with the bottom of core (28) through the pivot, the inside both ends symmetry of fixed die plate (4) is provided with solid fixed cylinder (18), two first inner chamber (19) have all been seted up to the interior bottom of solid fixed cylinder (18), two first thread groove (20) have all been seted up at the top of first inner chamber (19), two second thread groove (21) have all been seted up at the top of first thread groove (20), one side that second action wheel (16) and third action wheel (17) are opposite all runs through the belt and extends to corresponding first interior The cavity (19) internal rotation is connected with first driven wheel (22), two first driven wheel (22) top center department all rotates first threaded rod (23), two first threaded rod (23) extend to first thread groove (20) in top one side meshing be connected with second threaded rod (24), two top welding that second threaded rod (24) extend to second thread groove (21) has third threaded rod (25), two top one side meshing of third threaded rod (25) is connected with fourth threaded rod (26), two the top of fourth threaded rod (26) all has oblique guide pillar (27) through the connecting rod welding, two the top after the top of oblique guide pillar (27) runs through fixed cylinder (18) runs through in proper order and corresponds two ejector pins (31) and be sliding connection.
2. The injection mold for a housing of a miniature microphone according to claim 1, wherein: and the outer wall of the bottom of the mold core (28) is provided with an external thread (33).
3. The injection mold for a housing of a miniature microphone according to claim 1, wherein: and sealing gaskets (32) are arranged at the joints of the two ends of the bottom of the cavity (29) and the top end of the fixed die plate (4).
4. The injection mold for a housing of a miniature microphone according to claim 1, wherein: the top both ends symmetrical welding of base (2) has deflector (46), two deflector (46) contacts with the both sides of cover half fixed plate (3), cover half board (4), movable mould board (5) and movable mould fixed plate (6) respectively.
5. The injection mold for a housing of a miniature microphone according to claim 1, wherein: two the top both ends symmetrical welding of side board (8) has guide bar (10), every the top of guide bar (10) all runs through upper die base (7) and is sliding connection, every limiting plate (12), every are all welded on the top of guide bar (10) the outer wall of guide bar (10) all is connected with reset spring (11), every the both ends of reset spring (11) are connected with side board (8) top and upper die base (7) bottom respectively.
6. The injection mold for a housing of a miniature microphone according to claim 1, wherein: one side of the top of the first bevel gear (14) is connected with a second bevel gear (34) in a meshing manner, one side, far away from the second bevel gear (34), of the first driving wheel (15) is connected with a second driven wheel (35) in a rotating manner through a belt, the center of the bottom end of the second driven wheel (35) is connected with a third bevel gear (36) in a rotating manner through a rotating shaft, and one side of the bottom of the third bevel gear (36) is connected with a fourth bevel gear (37) in a meshing manner.
7. The injection mold for a housing of a miniature microphone according to claim 6, wherein: second inner chambers (44) are formed in the inner bottoms of the two side panels (8), and third thread grooves (45) are formed in the top ends of the second inner chambers (44).
8. The injection mold for a housing of a miniature microphone according to claim 7, wherein: the two lifting mechanisms (9) respectively comprise fifth bevel gears (38) arranged in corresponding second inner chambers (44), the two fifth bevel gears (38) penetrate through the base (2) through rotating shafts and extend into the base to be respectively connected with a fourth bevel gear (37) and a second bevel gear (34) in a rotating mode, one sides of the bottoms of the two fifth bevel gears (38) are respectively connected with a sixth bevel gear (39) in a meshing mode, the bottom ends of the two sixth bevel gears (39) are respectively provided with a fourth driving wheel (40), one sides of the two fourth driving wheels (40) are respectively connected with a fourth driven wheel (41) in a rotating mode through belts, the centers of the tops of each fourth driven wheel (41) and the fourth driving wheel (40) are respectively connected with a fifth threaded rod (42) in a rotating mode, one end, extending into corresponding third threaded groove (45), of each fifth threaded rod (42) is respectively connected with a sixth threaded rod (43) in a meshing mode, and each sixth threaded rod (43) penetrates through the top end of the side panel (8) and is fixedly connected with the bottom of the upper die holder (7).
9. A method of injection molding a miniature microphone housing according to any of claims 1-8, wherein: the method comprises the following steps:
the method comprises the following steps: firstly, a lower die holder (1), a base (2), a fixed die fixing plate (3), a fixed die plate (4), a movable die plate (5), a movable die fixing plate (6) and an upper die holder (7) are sequentially arranged on injection molding machine equipment, and injection molding is carried out after the movable die plate (5) and the fixed die plate (4) are closed after the positions are adjusted;
step two: after injection molding is finished, firstly, a driving motor (13) is controlled to rotate positively, the driving motor (13) drives a second driving wheel (16), a third driving wheel (17) and a mold core (28) to rotate, the second driving wheel (16) and the third driving wheel (17) drive first driven wheels (22) to rotate, two first driven wheels (22) drive second threaded rods (24) to rotate and lift through first threaded rods (23), the two second threaded rods (24) drive third threaded rods (25) to rotate and lift, then the two third threaded rods (25) drive fourth threaded rods (26) to rotate, and the two fourth threaded rods (26) drive ejector rods (31) to move inwards through inclined guide posts (27) to be in contact with and fixed with a micro microphone shell plastic part;
step three: the driving motor (13) drives the first bevel gear (14) and the first driving wheel (15) to rotate, the first bevel gear (14) drives the second bevel gear (34) to rotate, meanwhile, the first driving wheel (15) drives the second driven wheel (35) to rotate, the second driven wheel (35) drives the third bevel gear (36) to rotate, then the third bevel gear (36) and the second bevel gear (34) drive the fifth bevel gear (38) to rotate, the lifting mechanism (9) can be driven to move upwards, and finally, the fourth driven wheel (41) and the fourth driving wheel (40) drive the sixth threaded rod (43) through the fifth threaded rod (42) to drive the upper die holder (7) to move upwards, and demolding can be carried out;
step four: and (3) controlling a driving motor (13) to work reversely, controlling a lifting mechanism (9) to move downwards by the driving motor (13), and finally driving a fourth driven wheel (41) and a fourth driving wheel (40) to drive a sixth threaded rod (43) to drive an upper die holder (7) to move downwards through a fifth threaded rod (42) to complete resetting.
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| CN202011355958.4A CN112519147A (en) | 2020-11-27 | 2020-11-27 | Injection mold and injection method for miniature microphone shell |
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| CN202011355958.4A CN112519147A (en) | 2020-11-27 | 2020-11-27 | Injection mold and injection method for miniature microphone shell |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113977853A (en) * | 2021-04-19 | 2022-01-28 | 浙江瀚氏模塑科技有限公司 | Injection mold for storage battery shell |
| CN115179504A (en) * | 2022-09-09 | 2022-10-14 | 中亿腾模塑科技（苏州）有限公司 | Plastic injection mold capable of realizing efficient demolding and method |
| CN117103591A (en) * | 2023-09-05 | 2023-11-24 | 东台迈盛智能科技有限公司 | A mould for prefabricating wind power generation blade roof beam |
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| CN210061857U (en) * | 2019-06-06 | 2020-02-14 | 昆山依森琳川密封科技有限公司 | Injection mold for producing sealing ring of environmental protection equipment |
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| US6478571B1 (en) * | 1999-12-21 | 2002-11-12 | Industrial Technology Research Institute | Clamping apparatus of an injection molding machine |
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| CN117103591A (en) * | 2023-09-05 | 2023-11-24 | 东台迈盛智能科技有限公司 | A mould for prefabricating wind power generation blade roof beam |
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Application publication date: 20210319 |