CN116533462B - Communication connector plastic housing forming equipment and forming method - Google Patents
Communication connector plastic housing forming equipment and forming method Download PDFInfo
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- CN116533462B CN116533462B CN202310823333.3A CN202310823333A CN116533462B CN 116533462 B CN116533462 B CN 116533462B CN 202310823333 A CN202310823333 A CN 202310823333A CN 116533462 B CN116533462 B CN 116533462B
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- communication connector
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- 239000004033 plastic Substances 0.000 title claims abstract description 129
- 229920003023 plastic Polymers 0.000 title claims abstract description 129
- 238000004891 communication Methods 0.000 title claims abstract description 54
- 238000000034 method Methods 0.000 title claims abstract description 18
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 124
- 238000001746 injection moulding Methods 0.000 claims abstract description 82
- 229910052742 iron Inorganic materials 0.000 claims abstract description 62
- 238000000465 moulding Methods 0.000 claims abstract description 35
- 229910000938 samarium–cobalt magnet Inorganic materials 0.000 claims abstract description 31
- 238000009833 condensation Methods 0.000 claims description 22
- 230000005494 condensation Effects 0.000 claims description 22
- 239000012943 hotmelt Substances 0.000 claims description 20
- 239000012535 impurity Substances 0.000 claims description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 18
- 238000007789 sealing Methods 0.000 claims description 8
- 238000002844 melting Methods 0.000 claims description 7
- 230000008018 melting Effects 0.000 claims description 7
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 238000004321 preservation Methods 0.000 claims description 2
- 238000002347 injection Methods 0.000 abstract description 22
- 239000007924 injection Substances 0.000 abstract description 22
- 239000000463 material Substances 0.000 abstract description 5
- 230000000694 effects Effects 0.000 description 12
- 101150006573 PAN1 gene Proteins 0.000 description 11
- 238000004378 air conditioning Methods 0.000 description 7
- 238000001816 cooling Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 238000009434 installation Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 238000007493 shaping process Methods 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 238000010112 shell-mould casting Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
-
- 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
- B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
- B29C45/57—Exerting after-pressure on the moulding material
-
- 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
- B29C45/64—Mould opening, closing or clamping devices
-
- 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
- B29C45/72—Heating or cooling
- B29C45/73—Heating or cooling of the mould
- B29C45/7337—Heating or cooling of the mould using gas or steam
-
- 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
- B29C45/64—Mould opening, closing or clamping devices
- B29C2045/645—Mould opening, closing or clamping devices using magnetic means
-
- 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
- B29L2031/34—Electrical apparatus, e.g. sparking plugs or parts thereof
- B29L2031/36—Plugs, connectors, or parts thereof
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention relates to the technical field of plastic material forming, in particular to a communication connector plastic shell forming device and a forming method. According to the invention, the injection hole is subjected to pressurized injection molding towards the injection cavity, the probability of bubble generation can be effectively reduced by pressurized injection molding, and in the pressurized injection molding process, the magnetic attraction between the samarium cobalt magnet and the rectangular iron block is needed to be overcome between the upper die and the rectangular iron block, so that the pressure in the injection cavity is increased, and the pressure in the injection cavity is increased by overcoming the magnetic force to apply work, so that on one hand, bubbles in the plastic shell of the communication connector after molding can be reduced, and on the other hand, the internal structure of the plastic shell of the communication connector can be more tightly connected.
Description
Technical Field
The invention relates to the field of plastic material molding, in particular to a communication connector plastic shell molding device and a molding method.
Background
A communication connector is one type of connector. Connectors are also known as connectors, plugs and sockets. Generally referred to as an electrical connector. I.e. a device connecting two active devices, which carries a current or signal. The connector is widely applied to military systems such as aviation, aerospace, national defense and the like, and the shell of the connector is usually prepared from plastic materials, and the plastic is also one of the plastic materials.
In the publication CN115891075a, a communication connector plastic housing forming apparatus is disclosed, comprising: the support base, forming mechanism is installed at the top of support base, forming mechanism's surface is provided with first mould, forming mechanism's surface is provided with the second mould.
However, the plastic housing forming device of the communication connector still has a certain defect when in use, in the prior art, the plastic housing is formed by adopting a common injection molding mode, the mode is adopted to splice the molds together, then the injection molding work is carried out, in the process, air bubbles are usually formed inside the formed plastic housing due to the fact that air is contained in molten plastic, or air bubbles are formed inside the formed plastic member due to the fact that the air contained in an internal injection molding cavity of the mold cannot be discharged after the molds are spliced.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a communication connector plastic shell forming device and a communication connector plastic shell forming method.
In order to achieve the above purpose, the invention adopts the following technical scheme: the utility model provides a communication connector plastic housing former, includes the drain pan, the top center department slidable mounting of drain pan has the bed die of liftable, and the top lift of bed die installs the mould, and the inside of going up the mould is inlayed and is equipped with samarium cobalt magnet, and the top center department fixedly connected with rectangle iron plate of bed die, rectangle iron plate and samarium cobalt magnet magnetic attraction, the gas pocket that is used for the exhaust air has all been seted up to the bottom both sides of going up the mould, and the injection hole has been seted up to the one end tip of going up the mould, and the injection hole is arranged in injecting molten state's plastics in upward mould and the bed die.
Preferably: the top center department of drain pan has seted up the rectangle smooth chamber, the annular rectangle spacing post of rectangle has been cup jointed to the center department of rectangle smooth chamber is fixed, bed die sliding connection is in the rectangle smooth intracavity, and the bed die is located the top of the spacing post of rectangle, the bottom center department fixedly connected with rectangle smooth post of bed die, the one end fixedly connected with spacing slide of bed die is kept away from to the rectangle smooth post, the top wallboard of spacing slide and the bottom wallboard activity butt of the spacing post of rectangle, the bottom wallboard of spacing slide and the interior bottom wallboard activity butt of the interior bottom wallboard of rectangle smooth chamber, the inside of spacing slide is inlayed and is equipped with the magnetic plate.
Preferably: the bottom of drain pan has been seted up and has been installed the spout, the installation spout runs through the wallboard of drain pan, the spout sliding connection has the hot melt case of installing, the plastics of molten state has been added in advance to the hot melt incasement, the top of hot melt case rotates and has cup jointed first apron, first apron shutoff is at the top of hot melt case, and the side of first apron is provided with heat-resistant seal circle, the bottom center department fixedly connected with magnetic pillar of first apron, the magnetic pillar is the same with the magnetic pole that the magnetic plate is close to one end each other, all seted up the cavity that is used for the heat retaining in the lateral wall of hot melt case.
Preferably: one end fixedly connected with pressurization water pump of hot melt case, the input intercommunication of pressurization water pump has horizontal pipe, and horizontal pipe runs through the lateral wall of hot melt case and the plastics place cavity intercommunication of molten state, and the output intercommunication of pressurization water pump has communicating pipe, and the one end intercommunication that pressurization water pump was kept away from to communicating pipe has the transfer case that is used for the edulcoration, and transfer case fixed connection is in top one side of drain pan, and the one end tip intercommunication that the transfer case top was kept away from the bed die has the pipe of moulding plastics, and the one end and the hole intercommunication of moulding plastics of transfer case are kept away from to the pipe of moulding plastics.
Preferably: the utility model discloses a novel energy-saving plastic material transfer box, including transfer box, upper mould, lower mould, fixed axle, samarium cobalt magnet, fixed axle, check board, fixed axle, connecting pipe, check board, upper mould, lower mould, heat-resisting sealing strip, fixed axle, samarium cobalt magnet, the inside center department fixedly connected with of transfer box has a plurality of slopes of check board, and one side that the transfer box is close to the lower mould rotates and is connected with the second apron, and the second apron is used for shutoff transfer box, and the junction of second apron and transfer box is provided with the heat-resisting sealing strip, and the fixed axle has been cup jointed in the top rotation of second apron, and fixed axle fixed connection is kept away from on the one end top inner wall of communicating pipe at the transfer box, and the second apron is located one side that the check board is close to the upper mould.
Preferably: the bottom center department of roof is provided with hydraulic telescoping post, hydraulic telescoping post's stiff end fixed connection is on the bottom wallboard of roof, hydraulic telescoping post's telescopic end fixed connection is on the top center department wallboard of last mould.
Preferably: the top of drain pan sets up central department and has seted up the annular condensation chamber of rectangle, and the one end intercommunication of condensation chamber has first built-in pipe, and the one end intercommunication that the condensation chamber was kept away from to first built-in pipe has the condensing fan, and first built-in pipe intercommunication is at the output of condensing fan, and the one end intercommunication that the condensing fan was kept away from to the condensation chamber has the built-in pipe of second, and the built-in pipe of second runs through the lateral wall of drain pan, and the one end intercommunication that the condensing chamber was kept away from to the built-in pipe of second has the play tuber pipe of "U" style of calligraphy.
Preferably: one end of the air outlet pipe, which is far away from the second built-in pipe, is fixedly connected with an air plate, an air cavity is formed in the air plate, the air cavity is communicated with the air outlet pipe, one side of the air cavity, which is far away from the air outlet pipe, is communicated with a plurality of strip-shaped grooves, the strip-shaped grooves face the directions of the upper die and the lower die, and the air plate and the condensing fan are respectively arranged on two sides of the bottom shell.
Preferably: the bottom shell is kept away from the filter plate of the connector plastic housing after the shaping that is provided with at one end top of aviation baffle, and the filter plate sets up on the curb plate, and rectangular transverse groove has been seted up to the center department of curb plate, and the one end bottom fixed connection of filter plate is on rectangular transverse groove's bottom wallboard, and the bottom of filter plate is provided with the chute, and the chute is seted up on the curb plate is close to one side wallboard of aviation baffle, and the chute is used for guiding the wind of aviation baffle blast.
A molding method of a molding apparatus for a plastic housing of a communication connector, the molding method comprising the steps of:
step one: the rectangular iron blocks at the tops of the upper die and the lower die are controlled to be abutted, then the bottom wall plate of the upper die is abutted with the top wall plate of the bottom shell, and injection molding is carried out in a space formed by the upper die and the lower die through injection holes;
step two: the air bubbles in the plastic shell of the formed communication connector are reduced in a pressurizing injection molding mode, and meanwhile, the pressure between the upper die and the lower die is improved through the samarium cobalt magnet and the magnetic force on the rectangular iron block;
step three: after injection molding is completed, the upper die is controlled to ascend, and the demolding work of the plastic shell of the communication connector is promoted by the magnetic force applied to the rectangular iron block by the samarium cobalt magnet.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the invention, the injection hole is subjected to pressurized injection molding towards the injection cavity, the probability of bubble generation can be effectively reduced by pressurized injection molding, and in the pressurized injection molding process, the magnetic attraction between the samarium cobalt magnet and the rectangular iron block is needed to be overcome between the upper die and the rectangular iron block, so that the pressure in the injection cavity is increased, and the pressure in the injection cavity is increased by overcoming the magnetic force to apply work.
2. According to the invention, through the arrangement of the air holes, when the lower die descends, gas is gradually extruded into the air holes by molten plastic, at the moment, the gas is compressed under the action of the molten plastic due to the increase of the pressure in the injection molding cavity, after the compression, the gas is concentrated in the air holes, so that the condition that bubbles are formed in an injection molding part due to the gas existing in the injection molding cavity after the injection molding cavity is sealed is avoided, and after the molten plastic enters the air holes, if a cylinder of the plastic is formed on the outer surface of the injection molding part, the cylinder of the plastic is polished and trimmed in the subsequent work.
3. According to the invention, through the arrangement of the magnetic plate and the magnetic column, the repulsive force between the magnetic column and the magnetic plate acts on the lower die through the limit sliding plate and the rectangular sliding column, so that the butt joint between the rectangular iron block and the upper die is tighter, the force required by the lower die to descend is larger, the more power is required in the injection cavity, the effect of the samarium cobalt magnet and the rectangular iron block on pressurizing in the injection cavity is promoted, the discharge of bubbles in the injection part is promoted, and the quality of the plastic shell of the communication connector is further ensured.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a rear elevational view of the overall structure of the present invention;
FIG. 3 is a schematic cross-sectional view of the air outlet pipe of the present invention;
FIG. 4 is an enlarged schematic view of the structure of the portion A shown in FIG. 3 according to the present invention;
FIG. 5 is an enlarged schematic view of the structure of the portion B shown in FIG. 3 according to the present invention;
FIG. 6 is a schematic cross-sectional view of a rectangular strut of the present invention;
FIG. 7 is an enlarged schematic view of the structure of the portion C shown in FIG. 6 according to the present invention;
FIG. 8 is a schematic view of the overall structure of the hot melt tank of the present invention;
FIG. 9 is a schematic cross-sectional view of the structure of the hot melt tank of the present invention;
FIG. 10 is a schematic view of the overall structure of the upper mold of the present invention;
FIG. 11 is a schematic view of the installation structure of the chute of the present invention;
fig. 12 is a schematic cross-sectional view of a condensation chamber according to the present invention.
In the figure: 1. A bottom case; 2. a side plate; 3. a top plate; 4. a hydraulic telescopic column; 5. an upper die; 6. rectangular iron blocks; 7. a lower die; 8. a transfer box; 9. a wind plate; 10. a filter plate; 11. a condensing fan; 12. a hot melt tank; 13. a pressurized water pump; 14. a communicating pipe; 15. a hollow cavity; 16. a magnetic column; 17. a rectangular slide column; 18. a condensing chamber; 19. an air outlet pipe; 20. a chute; 21. rectangular limit posts; 22. injection molding a tube; 23. a first cover plate; 24. air holes; 25. injection molding holes; 26. a samarium cobalt magnet; 27. a magnetic plate; 28. a limit sliding plate; 29. a rectangular sliding cavity; 30. a second cover plate; 31. a non-return plate; 32. and installing a chute.
Detailed Description
The following description is presented to enable one of ordinary skill in the art to make and use the invention. The preferred embodiments in the following description are by way of example only and other obvious variations will occur to those skilled in the art.
The utility model provides a communication connector plastic housing former as shown in fig. 1 through 12, including drain pan 1, the top center department slidable mounting of drain pan 1 has liftable bed die 7, the top lift of bed die 7 installs mould 5, the inside of mould 5 has inlayed samarium cobalt magnet 26, the top center department fixedly connected with rectangle iron plate 6 of bed die 7, rectangle iron plate 6 and samarium cobalt magnet 26 magnetic attraction, the gas pocket 24 that is used for the exhaust air has all been seted up to the bottom both sides of mould 5, injection molding hole 25 has been seted up to the one end tip of mould 5, injection molding hole 25 is arranged in injecting molten state plastics to mould 5 and bed die 7. An electromagnetic valve is embedded in the injection hole 25. The injection hole 25 is located above the lower die 7, and the projection of the injection hole 25 in the vertical direction is located outside the rectangular iron block 6.
In specific implementation, the upper die 5 is controlled to descend, so that the rectangular iron blocks 6 at the tops of the upper die 5 and the lower die 7 are abutted, and along with the descent of the upper die 5, the bottom wall plate of the upper die 5 is abutted with the top wall plate of the bottom shell 1, so that an injection molding cavity is formed among the upper die 5, the lower die 7, the rectangular iron blocks 6 and the bottom shell 1. After opening the solenoid valve, this injection molding work is carried out in the cavity of moulding plastics through moulding plastics hole 25, along with the going on of injection molding work, the plastics of molten state can extrude the bed die 7 that is located the cavity bottom of moulding plastics, and then make bed die 7 descend for distance between rectangle iron plate 6 and the last mould 5 increases, along with the injection of molten state plastics, can also make to obtain effectual injection molding work between last mould 5 and the rectangle iron plate 6, the molten state plastics can form a box body that does not have the bottom surface wallboard in the cavity of moulding plastics this moment, then go on through cooling and follow-up work, just formed communication connector plastic housing.
In the process of moulding plastics, samarium cobalt magnet 26 in the upper mould 5 can provide a magnetic attraction's power to rectangle iron plate 6 all the time, and then make rectangle iron plate 6 closely laminate with upper mould 5 under the effect of magnetic force, and the work of moulding plastics between upper mould 5 and the rectangle iron plate 6, need the pressurization to mould plastics, the probability that the effectual reduction bubble produced of pressurization moulding plastics, and in the pressurization injection moulding process, need overcome the magnetic attraction between samarium cobalt magnet 26 and the rectangle iron plate 6 between upper mould 5 and the rectangle iron plate 6, therefore the pressure in the cavity of moulding plastics increases, make the mode of the inside pressure increase of cavity of moulding plastics through overcoming magnetic force acting, on the one hand can reduce the bubble that communication connector plastics shell inside after the shaping, on the other hand also can make the internal structure connection of communication connector plastics shell inseparabler, guarantee the quality of communication connector plastics shell.
When the molten plastic abuts against the upper die 5 and the rectangular iron block 6, the molten plastic firstly enters a space formed by the rectangular iron block 6 and the lower die 7, after the space formed by the rectangular iron block 6 and the lower die 7 is filled with the molten plastic, the lower die 7 is lowered along with the injection molding, a space is formed between the rectangular iron block 6 and the upper die 5, and the molten plastic enters the space to form a top wall plate of an injection molding piece.
At the beginning of the injection molding operation, since the mass of the plastic is higher than that of the air, after the molten plastic enters the injection molding cavity, the gas moves upwards, so that the gas is concentrated above the injection molding cavity, when the lower die 7 descends, the gas is gradually extruded into the air holes 24 by the molten plastic, at the moment, the gas is compressed under the action of the molten plastic due to the pressure increase in the injection molding cavity, after the compression, the gas is concentrated in the air holes 24, so that the condition that bubbles are formed inside an injection molding part due to the gas existing inside the injection molding cavity after the injection molding cavity is sealed is avoided, and when the molten plastic enters the air holes 24, if a cylinder of the plastic is formed on the outer surface of the injection molding part, the cylinder of the plastic is polished and trimmed in the subsequent operation.
As a further embodiment of the invention: the top center department of drain pan 1 has offered rectangle smooth chamber 29, the center department of rectangle smooth chamber 29 has fixedly cup jointed the annular rectangle spacing post 21 of rectangle, bed die 7 sliding connection is in rectangle smooth chamber 29, and bed die 7 is located the top of rectangle spacing post 21, the bottom center department fixedly connected with rectangle smooth post 17 of bed die 7, the one end fixedly connected with spacing slide 28 of rectangle smooth post 17 keeping away from bed die 7, the top wallboard of spacing slide 28 and the bottom wallboard activity butt of rectangle spacing post 21, the bottom wallboard of spacing slide 28 and the interior bottom wallboard activity butt of rectangle smooth chamber 29, the inside of spacing slide 28 is inlayed and is equipped with magnetic plate 27. When the limit slide plate 28 is abutted with the rectangular slide cavity 29, the space formed by the injection molding cavity is the molded state of the injection molding piece. The outside of the lower die 7 is provided with an iron sealing sleeve for preventing leakage of molten plastic, which is provided as a prior art, commonly used for sealing of automobile engine cylinders, and is not disclosed too much herein.
It should be noted that, the side of the rectangular limiting post 21 near the lower die 7 is provided with a first exhaust pipe for exhausting air in a cavity formed by the lower die 7 and the rectangular limiting post 21, the first exhaust pipe penetrates through the side wall of the bottom shell 1, the bottom of the rectangular sliding cavity 29 is communicated with a second exhaust pipe, the second exhaust pipe also penetrates through the side wall of the bottom shell 1, the second exhaust pipe is used for exhausting air in the limiting slide plate 28 and the rectangular sliding cavity 29, the arrangement of the first exhaust pipe and the second exhaust pipe is the prior art, the arrangement of the first exhaust pipe and the second exhaust pipe is not disclosed excessively, the side edge of the limiting slide plate 28 is provided with an air-permeable groove, the air-permeable groove is used for maintaining the air pressure balance above and below the limiting slide plate 28, and the arrangement of the air-permeable groove is also the conventional application of the prior art, and is not disclosed excessively.
In specific implementation, when the lower die 7 descends, the limit slide plate 28 and the rectangular slide column 17 also descend, so that the lower die 7 is accommodated in the rectangular slide cavity 29, at this time, the side wall of the rectangular slide cavity 29 above the lower die 7 is abutted against the outer wall of the injection molding piece, and the outer wall of the rectangular iron block 6 is abutted against the inner wall of the injection molding piece, so that the injection molding piece is formed at the top of the rectangular slide cavity 29, and after the injection molding piece is cooled and molded, the communication connector plastic shell is formed.
Through the setting of rectangle spacing post 21, when the bottom wallboard of spacing slide 28 and the interior bottom wallboard activity butt of rectangle slide cavity 29, the top wallboard of rectangle spacing post 21 also can with the bottom wallboard butt of bed die 7, the space that the cavity of moulding plastics formed just is the style that finally forms communication connector plastics shell this moment. When the top wall plate of the limit slide plate 28 is movably abutted with the bottom wall plate of the rectangular limit post 21, the top wall plate of the upper die 5 and the top wall plate of the bottom shell 1 are positioned on the same horizontal line.
As a further embodiment of the invention: the bottom of drain pan 1 has been seted up and has been installed spout 32, the side wall board of drain pan 1 is run through to installation spout 32, sliding connection has hot melt case 12 in installation spout 32, add molten plastic in advance in the hot melt case 12, the top of hot melt case 12 rotates and has cup jointed first apron 23, first apron 23 shutoff is at the top of hot melt case 12, and the side of first apron 23 is provided with heat-resistant sealing washer, the bottom center department fixedly connected with magnetic column 16 of first apron 23, the magnetic pole that magnetic column 16 and magnetic plate 27 are close to one end each other is the same, all set up the cavity 15 that is used for the heat preservation in the lateral wall of hot melt case 12. The heat resistant seal is prior art and is not disclosed too much herein.
In particular implementation, in the injection molding process, due to the arrangement of the magnetic columns 16 and the magnetic plates 27, since the magnetic poles at the ends, close to each other, of the magnetic columns 16 and the magnetic plates 27 are the same, and the magnets are in like polarity repulsion, the magnetic columns 16 apply a repulsive force to the magnetic plates 27, the repulsive force between the magnetic columns 16 and the magnetic plates 27 can enable the magnetic plates 27 to rise, after the magnetic plates 27 rise, the limiting slide plate 28 and the rectangular slide column 17 act on the lower mold 7, so that the abutting between the rectangular iron block 6 and the upper mold 5 is tighter, the force required by the lower mold 7 to descend is larger, the more work is required in the injection molding cavity, the effect of the samarium cobalt magnet 26 and the rectangular iron block 6 on pressurizing in the injection molding cavity is promoted, the discharge of bubbles in the injection molding piece is promoted, and the quality of the plastic shell of the communication connector is further ensured.
In the prior art, because the communication connector plastic housing needs to be fixed by using bolts or screws in the subsequent assembly process, iron objects or impurities are mixed in an injection molding workshop, so that the environment of the injection molding workshop becomes more complex, if iron objects or impurities are mixed in plastic raw materials used for injection molding, the molding failure of injection molding parts can be caused, and because the iron objects or impurities are clamped in the plastic housing, the stability of the communication connector plastic housing after molding is reduced, reworking is needed, impurities are also needed to be discharged, and the process is quite troublesome.
Through the setting of magnetic column 16, magnetic column 16 can be with plastics raw materials after the melting, and a small amount of iron article or impurity that exists in inside adsorbs on the outer wall of magnetic column 16, reaches the purpose that avoids mixing iron article or impurity in the plastics raw materials and lead to the shaping failure of injection molding, after the work of moulding plastics is accomplished, open first apron 23, with on the outer wall of magnetic column 16 through magnetic force adsorption iron article or impurity clear up can, cavity 15 can play the heat retaining effect on the one hand, on the other hand also can play thermal-insulated effect.
As a further embodiment of the invention: one end fixedly connected with pressurization water pump 13 of hot melt case 12, the input intercommunication of pressurization water pump 13 has horizontal pipe, horizontal pipe runs through the lateral wall of hot melt case 12 and the plastics place cavity intercommunication of molten state, the output intercommunication of pressurization water pump 13 has communicating pipe 14, the one end intercommunication that pressurization water pump 13 was kept away from to communicating pipe 14 has the transfer case 8 that is used for the edulcoration, transfer case 8 fixed connection is in top one side of drain pan 1, the one end tip intercommunication that transfer case 8 top kept away from bed die 7 has injection molding pipe 22, the one end that transfer case 8 was kept away from to injection molding pipe 22 communicates with injection molding hole 25. The communicating pipe 14 and the injection molding pipe 22 are high temperature resistant rubber pipes, and the communicating pipe 14 and the injection molding pipe 22 are arranged in the prior art and are not disclosed in excess; the output end of the pressurized water pump 13 is provided with a communication interface, the communication pipe 14 is sleeved on the interface and communicated with the output end of the pressurized water pump 13, and the arrangement of the interface is in the prior art and is not disclosed herein too much.
In particular, at the beginning of the injection molding operation, the pressurizing water pump 13 is turned on, so that the pressurizing water pump 13 extracts molten plastic from the hot melt tank 12, and then the molten plastic is conveyed to the transfer tank 8 through the communicating pipe 14, if the molten plastic contains a small amount of iron articles and impurities which are not adsorbed by the magnetic columns 16, the molten plastic can be impacted on one side of the transfer tank 8, close to the upper mold 5, along with the molten plastic, in the process, the samarium-cobalt magnet 26 adsorbs the small amount of iron articles and impurities contained in the molten plastic on one side of the transfer tank 8, close to the second cover plate 30, and the samarium-cobalt magnet 26 can promote cleaning of the iron articles and impurities, so that the condition that no iron articles or impurities exist inside the injection molded part is further ensured.
As a further embodiment of the invention: the inside center department fixedly connected with a plurality of slope of transfer case 8 ends contrary board 31, one side that transfer case 8 is close to bed die 7 rotates and is connected with second apron 30, second apron 30 is used for shutoff transfer case 8, the junction of second apron 30 and transfer case 8 is provided with heat-resisting sealing strip, the top rotation of second apron 30 has cup jointed the fixed axle, fixed axle fixed connection is on the one end top inner wall that transfer case 8 kept away from communicating pipe 14, second apron 30 is located one side that ends contrary board 31 is close to upper die 5, samarium cobalt magnet 26 in the upper die 5 removes miscellaneous work to the molten state plastics in the transfer case 8.
In practice, since the quality of the iron objects or impurities is higher than that of the molten plastics, the iron objects or impurities are concentrated at the bottom of the transfer box 8, and the iron objects or impurities are positioned at one side of the check plate 31 in the transfer box 8, which is close to the samarium cobalt magnet 26, and the purified molten plastics enter the injection holes 25 through the injection pipe 22 and then are subjected to injection molding in the injection molding cavity. The non-return plate 31 can restrict the backflow of iron objects or impurities.
As a further embodiment of the invention: the top center of one end of the bottom shell 1 is fixedly connected with a side plate 2, the top of the side plate 2 is fixedly connected with a top plate 3, one end of the top plate 3 is fixedly connected with the top of the side plate 2, the bottom center of the top plate 3 is provided with a hydraulic telescopic column 4, the fixed end of the hydraulic telescopic column 4 is fixedly connected with a bottom wall plate of the top plate 3, and the telescopic end of the hydraulic telescopic column 4 is fixedly connected with a top center wall plate of an upper die 5. The setting of hydraulic telescoping column 4 can effectually realize the fastening work between upper mould 5 and the bed die 7, avoids appearing the condition emergence of separation because of the too big top wallboard that leads to upper mould 5 and drain pan 1 of pressure of plastics.
In specific implementation, when the injection molding work starts, the hydraulic telescopic column 4 is controlled to extend, so that the upper die 5 is abutted against the top wall plate of the bottom shell 1, and then an injection molding cavity is formed in the upper die 5, the lower die 7, the rectangular iron block 6 and the rectangular sliding cavity 29.
After the injection molding is finished, the hydraulic telescopic column 4 is controlled to shrink, when the hydraulic telescopic column 4 shrinks, the upper die 5 can be lifted, under the action of magnetic attraction force applied by the samarium cobalt magnet 26 to the rectangular iron block 6 and magnetic repulsion force between the magnetic column 16 and the magnetic plate 27, the lower die 7 is lifted along with the upper die 5, then the top wall plate of the lower die 7 is lifted to be positioned on the same horizontal plane with the top wall plate of the bottom shell 1, and then the communication connector plastic shell after injection molding is shifted to the outer side of the rectangular sliding cavity 29, so that the demolding work between the communication connector plastic shell and the rectangular sliding cavity 29 is realized. When spacing slide 28 and the spacing post 21 butt of rectangle, along with the continuous shrink of hydraulic telescoping column 4, can separate between last mould 5 and the communication connector plastic housing, under the effect of the magnetic attraction that samarium cobalt magnet 26 applyed rectangular iron plate 6 and magnetic repulsion between magnetic column 16 and the magnetic plate 27 this moment, can make communication connector plastic housing be located the top of drain pan 1, realize the drawing of patterns work between communication connector plastic housing and the last mould 5, simultaneously, rise to after being located same horizontal plane with drain pan 1 top wallboard through bed die 7, also can be convenient for take off of communication connector plastic housing.
As a further embodiment of the invention: the top of drain pan 1 sets up central department and has seted up the annular condensation chamber 18 of rectangle, and the one end intercommunication of condensation chamber 18 has first built-in pipe, and the one end intercommunication that condensation chamber 18 was kept away from to first built-in pipe has condensation fan 11, and first built-in pipe intercommunication is at condensation fan 11's output, and the one end intercommunication that condensation chamber 18 kept away from condensation fan 11 has the built-in pipe of second, and the built-in pipe of second runs through drain pan 1's lateral wall, and the one end intercommunication that condensation chamber 18 was kept away from to the built-in pipe of second has "U" style of calligraphy to go out tuber pipe 19.
In particular implementation, in the in-process of moulding plastics, condensing fan 11 can open, condensing fan 11 carries the air conditioning in to condensing chamber 18, the air conditioning can take away the temperature of the interior molten plastics of cavity of moulding plastics, play the purpose of cooling, and then reach the effect of cooling injection molding, along with condensing fan 11's work, the air conditioning can blow the top at last mould 5 through tuber pipe 19, through the cooling to last mould 5, promote the cooling of injection molding, the air conditioning is after leaving condensing chamber 18, the temperature of air conditioning still is less than the temperature of molten plastics, consequently can cool down last mould 5, the more air conditioning of condensing fan 11 output, the lower the air conditioning temperature of follow tuber pipe 19 exhaust.
As a further embodiment of the invention: one end of the air outlet pipe 19, which is far away from the second built-in pipe, is fixedly connected with an air plate 9, an air cavity is formed in the air plate 9, the air cavity is communicated with the air outlet pipe 19, one side of the air cavity, which is far away from the air outlet pipe 19, is communicated with a plurality of strip-shaped grooves, the strip-shaped grooves face the upper die 5 and the lower die 7, and the air plate 9 and the condensing fan 11 are respectively arranged on two sides of the bottom shell 1.
In practice, after passing through the air outlet pipe 19, the cold air enters the air cavity, and then blows through the strip-shaped groove to the periphery of the upper die 5, so as to cool the upper die 5.
As a further embodiment of the invention: the top of one end of the bottom shell 1 far away from the air plate 9 is provided with a filter plate 10 for placing a formed connector plastic shell, the filter plate 10 is arranged on the side plate 2, a rectangular transverse groove is formed in the center of the side plate 2, one end bottom of the filter plate 10 is fixedly connected to a bottom wall plate of the rectangular transverse groove, a chute 20 is arranged at the bottom of the filter plate 10, the chute 20 is formed in a side wall plate of the side plate 2 close to the air plate 9, and the chute 20 is used for guiding air blown out by the air plate 9.
In particular, after the cold air is blown onto the upper mold 5, the cold air flows upwards under the guidance of the chute 20, and is blown over the filter plate 10 through the filter plate 10, after the demolding is completed, the formed communication connector plastic housing is placed on the filter plate 10 by using the fixture, the communication connector plastic housing with residual heat is cooled in an auxiliary manner by the air guided by the chute 20, and in the process, the air flow blown out by the air plate 9 can cool the opposite side wall plates of the upper mold 5 and the lower mold 7, so that the upper mold 5 and the lower mold 7 can form a temperature difference with molten plastic in the next injection molding process of the device, and further the situation that the molten plastic is adhered to the upper mold 5, the lower mold 7 or the rectangular iron block 6 after the injection molding is avoided.
A molding method of a molding apparatus for a plastic housing of a communication connector, the molding method comprising the steps of:
step one: by controlling the abutting of the rectangular iron blocks 6 at the top of the upper die 5 and the lower die 7, then the bottom wall plate of the upper die 5 is abutted with the top wall plate of the bottom shell 1, and injection molding is performed towards the space formed by the upper die 5 and the lower die 7 through the injection holes 25;
step two: air bubbles in the plastic shell of the formed communication connector are reduced by a pressurizing injection molding mode, and meanwhile, the pressure between the upper die 5 and the lower die 7 is improved by the samarium cobalt magnet 26 and the magnetic force on the rectangular iron block 6;
step three: after the injection molding is completed, the upper die 5 is controlled to ascend, and the demolding work of the communication connector plastic shell is promoted by the magnetic force applied to the rectangular iron block 6 by the samarium cobalt magnet 26.
It should be noted that, regarding the curie temperature, the plastic housing of the communication connector is usually made of polypropylene, the melting point of polypropylene is 148-176 ℃, the samarium cobalt magnet 26 can work in an environment with the environment temperature of 500-600 ℃, and the curie temperature of the conventional magnet is above 200 ℃, so that the demagnetizing reaction caused by the temperature reaching the curie point of various magnets in the device does not occur, the curie point of iron is higher than 770 ℃, and the cleaning of iron objects or impurities can be realized by magnetic force.
The working principle of the invention is as follows:
the rectangular iron blocks 6 at the top of the upper die 5 and the lower die 7 are abutted by controlling the extension of the hydraulic telescopic column 4, the bottom wall plate of the upper die 5 is abutted with the top wall plate of the bottom shell 1 along with the extension of the hydraulic telescopic column 4, and then the injection molding work is performed in the space formed by the upper die 5 and the lower die 7 through the injection molding hole 25 by starting the pressurizing water pump 13 and starting the electromagnetic valve.
The air bubbles in the plastic shell of the formed communication connector are reduced in a pressurizing injection molding mode, meanwhile, the pressure between the upper die 5 and the lower die 7 is improved through the samarium cobalt magnet 26 and the magnetic force to the rectangular iron block 6, and the samarium cobalt magnet 26 can also promote the demoulding operation of the plastic shell of the formed communication connector.
After the demolding operation is completed, the communication connector plastic housing after demolding is placed on the filter plate 10, so that the heat dissipation of the communication connector plastic housing can be promoted. Through the setting of condensation fan 11, can effectually promote communication connector plastic housing's cooling work.
The foregoing has shown and described the basic principles, principal 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, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made therein without departing from the spirit and scope of the invention, which is defined by the appended claims.
Claims (6)
1. Communication connector plastic housing former, including drain pan (1), its characterized in that: the bottom shell is characterized in that a lifting lower die (7) is slidably arranged at the center of the top of the bottom shell (1), an upper die (5) is arranged above the lower die (7) in a lifting manner, a samarium cobalt magnet (26) is embedded in the upper die (5), a rectangular iron block (6) is fixedly connected to the center of the top of the lower die (7), the rectangular iron block (6) and the samarium cobalt magnet (26) are magnetically attracted, air holes (24) for exhausting air are formed in two sides of the bottom of the upper die (5), an injection molding hole (25) is formed in one end part of the upper die (5), and the injection molding hole (25) is used for injecting molten plastics into the upper die (5) and the lower die (7);
a rectangular sliding cavity (29) is formed in the center of the top of the bottom shell (1), a rectangular annular rectangular limiting column (21) is fixedly sleeved at the center of the rectangular sliding cavity (29), a lower die (7) is slidably connected in the rectangular sliding cavity (29), the lower die (7) is positioned above the rectangular limiting column (21), a rectangular sliding column (17) is fixedly connected at the center of the bottom of the lower die (7), a limiting slide plate (28) is fixedly connected to one end, far away from the lower die (7), of the rectangular sliding column (17), the top wall plate of the limiting slide plate (28) is movably abutted with the bottom wall plate of the rectangular limiting column (21), the bottom wall plate of the limiting slide plate (28) is movably abutted with the inner bottom wall plate of the rectangular sliding cavity (29), and a magnetic plate (27) is embedded in the limiting slide plate (28);
the bottom of the bottom shell (1) is provided with a mounting chute (32), the mounting chute (32) penetrates through a side wall plate of the bottom shell (1), a hot melting box (12) is connected in a sliding manner in the mounting chute (32), molten plastic is added in the hot melting box (12) in advance, the top of the hot melting box (12) is rotatably sleeved with a first cover plate (23), the first cover plate (23) is blocked at the top of the hot melting box (12), the side edge of the first cover plate (23) is provided with a heat-resistant sealing ring, the center of the bottom of the first cover plate (23) is fixedly connected with a magnetic column (16), the magnetic poles of the magnetic column (16) and the magnetic plate (27) are the same as those of one end close to each other, and hollow cavities (15) for heat preservation are formed in the side walls of the hot melting box (12);
one end of the hot melt tank (12) is fixedly connected with a pressurizing water pump (13), the input end of the pressurizing water pump (13) is communicated with a transverse pipe, the transverse pipe penetrates through the side wall of the hot melt tank (12) and is communicated with a cavity where molten plastics are located, the output end of the pressurizing water pump (13) is communicated with a communicating pipe (14), one end, far away from the pressurizing water pump (13), of the communicating pipe (14) is communicated with a transfer tank (8) for removing impurities, the transfer tank (8) is fixedly connected to one side of the top of the bottom shell (1), one end, far away from the lower die (7), of the top of the transfer tank (8) is communicated with an injection molding pipe (22), and one end, far away from the transfer tank (8), of the injection molding pipe (22) is communicated with an injection molding hole (25);
the utility model discloses a novel plastic impurity removing device, including transfer case (8), including upper mould (5) and lower mould (5), transfer case (8), check board (31) of a plurality of slopes of inside center department fixedly connected with of transfer case (8), one side that transfer case (8) is close to bed die (7) rotates and is connected with second apron (30), second apron (30) are used for shutoff transfer case (8), junction of second apron (30) and transfer case (8) is provided with heat-resisting sealing strip, the fixed axle has been cup jointed in the top rotation of second apron (30), fixed axle fixed connection is kept away from on the one end top inner wall of communicating pipe (14) at transfer case (8), second apron (30) are located one side that check board (31) are close to upper mould (5), samarium cobalt magnet (26) in upper mould (5) removes miscellaneous work to molten state plastics in transfer case (8).
2. The communication connector plastic housing molding apparatus of claim 1, wherein: the bottom shell is characterized in that a side plate (2) is fixedly connected to the center of one end top of the bottom shell (1), a top plate (3) is fixedly connected to the top of the side plate (2), one end of the top plate (3) is fixedly connected to the top of the side plate (2), a hydraulic telescopic column (4) is arranged at the center of the bottom of the top plate (3), the fixed end of the hydraulic telescopic column (4) is fixedly connected to the bottom wall plate of the top plate (3), and the telescopic end of the hydraulic telescopic column (4) is fixedly connected to the wall plate at the center of the top of the upper die (5).
3. The communication connector plastic housing molding apparatus of claim 1, wherein: rectangular annular condensation cavity (18) has been seted up in top center department of drain pan (1), the one end intercommunication of condensation cavity (18) has first built-in pipe, the one end intercommunication that condensation cavity (18) was kept away from to first built-in pipe has condensation fan (11), and first built-in pipe intercommunication is at the output of condensation fan (11), the one end intercommunication that condensation cavity (18) was kept away from condensation fan (11) has the built-in pipe of second, the built-in pipe of second runs through the lateral wall of drain pan (1), and the one end intercommunication that condensation cavity (18) was kept away from to the built-in pipe of second has "U" style of calligraphy air-out pipe (19).
4. A communication connector plastic housing molding apparatus as defined in claim 3, wherein: one end fixedly connected with aerofoil (9) of second embedment pipe is kept away from in tuber pipe (19), and the wind chamber has been seted up to the inside of aerofoil (9), and wind chamber and tuber pipe (19) intercommunication, one side intercommunication that tuber pipe (19) was kept away from to the wind chamber has a plurality of bar grooves, and the direction of bar groove orientation cope mold (5) and bed mold (7), aerofoil (9) and condensing fan (11) set up the both sides in drain pan (1) respectively.
5. The communication connector plastic housing molding apparatus of claim 4, wherein: the utility model discloses a filter plate, including filter plate (9), filter plate (10), filter plate (20) are provided with on the one end top that aviation baffle (9) was kept away from to drain pan (1), filter plate (10) set up on curb plate (2), rectangular transverse groove has been seted up to the center department of curb plate (2), the one end bottom fixed connection of filter plate (10) is on the bottom wallboard in rectangular transverse groove, the bottom of filter plate (10) is provided with chute (20), chute (20) are seted up on the side wallboard that curb plate (2) are close to aviation baffle (9), chute (20) are used for guiding the wind that aviation baffle (9) bloated.
6. A molding method of a communication connector plastic housing molding apparatus, which is applicable to a communication connector plastic housing molding apparatus as claimed in any one of claims 1 to 5, characterized in that: the molding method comprises the following steps:
step one: the rectangular iron block (6) at the top of the upper die (5) and the lower die (7) are controlled to be abutted, then the bottom wall plate of the upper die (5) is abutted with the top wall plate of the bottom shell (1), and injection molding is carried out in a space formed by the upper die (5) and the lower die (7) through an injection molding hole (25);
step two: reducing air bubbles in the plastic shell of the formed communication connector by means of compression injection molding, and simultaneously improving the pressure between the upper die (5) and the lower die (7) by means of a samarium cobalt magnet (26) and magnetic force on a rectangular iron block (6);
step three: after injection molding is completed, the upper die (5) is controlled to ascend, and the demolding work of the communication connector plastic shell is promoted by magnetic force applied to the rectangular iron block (6) by the samarium cobalt magnet (26).
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| CN202310823333.3A CN116533462B (en) | 2023-07-06 | 2023-07-06 | Communication connector plastic housing forming equipment and forming method |
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