CN218139517U - Injection molding machine capable of simultaneously maintaining pressure and plasticizing - Google Patents
Injection molding machine capable of simultaneously maintaining pressure and plasticizing Download PDFInfo
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- CN218139517U CN218139517U CN202221439661.0U CN202221439661U CN218139517U CN 218139517 U CN218139517 U CN 218139517U CN 202221439661 U CN202221439661 U CN 202221439661U CN 218139517 U CN218139517 U CN 218139517U
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- 238000001746 injection moulding Methods 0.000 title claims abstract description 60
- 238000002347 injection Methods 0.000 claims abstract description 79
- 239000007924 injection Substances 0.000 claims abstract description 79
- 239000003292 glue Substances 0.000 claims abstract description 62
- 238000006243 chemical reaction Methods 0.000 claims abstract description 54
- 230000000149 penetrating effect Effects 0.000 claims abstract description 8
- 230000017525 heat dissipation Effects 0.000 claims description 25
- 230000001050 lubricating effect Effects 0.000 claims description 13
- 238000001816 cooling Methods 0.000 claims description 8
- 239000004033 plastic Substances 0.000 abstract description 15
- 229920003023 plastic Polymers 0.000 abstract description 15
- 238000000465 moulding Methods 0.000 abstract description 13
- 238000005461 lubrication Methods 0.000 description 10
- 239000000314 lubricant Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 239000000084 colloidal system Substances 0.000 description 5
- 238000003860 storage Methods 0.000 description 5
- 238000005299 abrasion Methods 0.000 description 4
- 238000002844 melting Methods 0.000 description 4
- 230000008018 melting Effects 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 239000013589 supplement Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
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- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model discloses an injection molding machine that can carry out pressurize, plastify simultaneously, including the injection molding machine body, be equipped with between the injection machine barrel of injection molding machine body and the mouth of penetrating of injection molding machine body and be used for switching the injection machine barrel and penetrate the mouth break-make, and carry out the pressurize plasticizing mechanism of pressurize to the mould when the injection machine barrel with penetrate the mouth and cut off. The utility model discloses an injection molding machine can realize the break-make of injection barrel and injection nozzle through setting up the conversion case, and the pressurize of injection barrel end plastify melt glue and injection nozzle end can go on simultaneously when the injection barrel cuts off with injection nozzle, accomplishes the plastify in the pressurize promptly, can guarantee the operation of moulding plastics in succession, has shortened the cycle of moulding plastics, has improved the efficiency of moulding plastics.
Description
Technical Field
The utility model relates to an injection molding machine technical field, in particular to can carry out pressurize, plasticized injection molding machine simultaneously.
Background
An injection molding machine is a main molding device for manufacturing various plastic parts by using thermoplastic plastics or thermosetting plastics. The injection molding machine generally works as follows: granular or powder plastic is fed into a heated glue melting cylinder with a certain temperature from a hopper of an injection molding machine, is heated and melted to be in a flowing state, is pushed by a hydraulic motor and a screw to pass through a nozzle at the front end of the glue melting cylinder, is injected into a mold with a lower temperature, and is cooled and solidified under the condition of being pressed to form a plastic product. In the processing process of the injection molding machine, in order to ensure the quality of an injection molding workpiece, after the injection molding machine finishes the injection process, a screw in a melt rubber cylinder of the injection molding machine still needs to continuously maintain the pressure to finish the pressure maintaining process, and only after the pressure maintaining process is finished, the next step can be carried out to continuously melt rubber to prepare for the next injection molding period.
The existing injection molding machine can not simultaneously carry out pressure maintaining and plasticizing, so that the injection molding period is long, and the production efficiency is influenced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art not enough, provide an injection molding machine that can carry out pressurize, plastify simultaneously, can realize the injection barrel and penetrate the break-make of mouth through setting up change-over valve core, the injection barrel end plastify melt glue can go on simultaneously with the pressurize of nozzle end when penetrating the mouth and cut off, accomplish the plastify promptly in the pressurize, can guarantee the operation of moulding plastics in succession, shorten the cycle of moulding plastics, improve the efficiency of moulding plastics.
The purpose of the utility model is realized through the following technical scheme:
the utility model provides an injection molding machine that can carry out pressurize, plastify simultaneously, includes the injection molding machine body, be equipped with between the injection machine barrel of injection molding machine body and the mouth of penetrating of injection molding machine body and be used for switching over the injection machine barrel and penetrate the mouth break-make, and carry out the pressurize plasticizing mechanism of pressurize to the mould when the injection machine barrel separates with penetrating the mouth.
Further, the pressure maintaining plasticizing mechanism comprises a shuttle valve seat;
a glue injection hole, a sliding hole and a pressure maintaining hole are formed in the shuttle valve seat, the glue injection hole is communicated with the injection machine barrel and the injection nozzle, the sliding hole and the pressure maintaining hole are arranged in parallel, and the axis of the sliding hole is perpendicular to the axis of the glue injection hole;
a conversion valve core capable of axially moving along the sliding hole is arranged in the sliding hole, a through hole is formed in the conversion valve core, the through hole is coaxial with the glue injection hole when the injection machine barrel is communicated with the nozzle, and the through hole is staggered with the glue injection hole when the injection machine barrel is separated from the nozzle; the conversion valve core is driven by a first driving piece;
and a pressure maintaining rod capable of moving along the axial direction of the pressure maintaining hole is arranged in the pressure maintaining hole and is driven by the second driving part.
Further, first driving piece is first hydro-cylinder, the second driving piece is the second hydro-cylinder, the piston rod of second driving piece is coaxial with the pressurize pole, and is equipped with the clearance of stepping down between the piston rod of second driving piece and the pressurize pole.
Further, the conversion valve core is connected with the piston rod of the first driving piece through a cooling connecting piece;
the cooling connecting piece comprises a first heat-conducting plate, a second heat-conducting plate and a connecting plate, the first heat-conducting plate and the second heat-conducting plate are arranged in parallel, two ends of the connecting plate are vertically connected with the first heat-conducting plate and the second heat-conducting plate, and the first heat-conducting plate, the second heat-conducting plate and the connecting plate form a structure with an I-shaped section;
the first heat-conducting plate and the second heat-conducting plate are respectively provided with a first connecting hole and a second connecting hole which are coaxial, the conversion valve core is connected with the first heat-conducting plate and the second heat-conducting plate through the first connecting hole and the first connecting pin, and the piston rod of the first oil cylinder is connected with the first heat-conducting plate and the second heat-conducting plate through the second connecting hole and the second connecting pin.
Furthermore, a first heat dissipation gap is arranged between the end part of the conversion valve core and the connecting plate, and a second heat dissipation gap is arranged between the end part of the first driving part and the connecting plate.
Furthermore, the end part of the conversion valve core is provided with a first horizontal plane and a first arc surface which are concave inwards, the first horizontal planes are respectively attached to the surfaces of the first heat conducting plate and the second heat conducting plate, and a third heat dissipation gap is formed between the first arc surface and the first heat conducting plate/the second heat conducting plate.
Further, the first connecting pin and the second connecting pin are both hollow structures.
Furthermore, two sides of the through hole of the conversion valve core are respectively provided with at least one glue hiding lubrication groove.
Furthermore, a connecting guide rod is arranged at the end part of the conversion valve core, and a plurality of guide keys are uniformly distributed on the surface of the connecting guide rod along the circumferential direction of the connecting guide rod;
connect the guide bar outside and be equipped with first end cover, first end cover and the disk seat fixed connection that shuttles back and forth, first end cover is the annular structure, the inner edge of first end cover be equipped with guide key sliding fit's guide way, first end cover is close to the one end terminal surface of penetrating the mouth and is equipped with coaxial polyblock ring, the inner edge diameter of polyblock ring is greater than the inner edge diameter of first end cover, first end cover is close to the disk seat one end terminal surface that shuttles back and is equipped with first gluey groove of leading, it gathers gluey annular to form between gluey ring and the first end cover terminal surface, gather gluey annular with first gluey groove intercommunication of leading.
Furthermore, the injection molding machine body is slidably mounted on a working platform through a shift injection bracket, the working platform is provided with a machine barrel bracket, the machine barrel bracket is provided with a roller seat, and the roller seat is provided with a guide roller;
the bottom of the injection machine barrel is provided with a guide rail, and the guide rail is matched with the guide roller.
The beneficial effects of the utility model are that:
1) The utility model discloses an injection molding machine can realize the break-make of injection barrel and injection nozzle through setting up the conversion case, and the pressurize of injection barrel end plastify melt glue and injection nozzle end can go on simultaneously when the injection barrel cuts off with injection nozzle, accomplishes the plastify in the pressurize promptly, can guarantee the operation of moulding plastics in succession, has shortened the cycle of moulding plastics, has improved the efficiency of moulding plastics.
2) The utility model discloses the piston rod of change-over valve core and conversion hydro-cylinder passes through the connecting piece of I shape and connects, and it has increased the heat radiating area between the piston rod of change-over valve core and first driving piece under the prerequisite that does not increase whole machine size and complexity to can effectively reduce the temperature that the piston rod brought because of the melten gel heat after dispelling the heat many times.
3) The lubricating device of the utility model can realize the supplement of the lubricant in the injection molding process without supplementing the lubricant into the gel storage lubricating groove, and realize the self-lubrication of the conversion valve core through the gel storage lubricating groove; the self-lubricating of the conversion valve core reduces the friction between the conversion valve core and the shuttle valve seat when the conversion valve core moves, effectively reduces the abrasion between the conversion valve core and the shuttle valve seat, prolongs the service life of the conversion valve core and the shuttle valve seat, and can avoid the increase of the rubber leakage amount caused by the abrasion.
Drawings
FIG. 1 is a first perspective view of an injection molding machine capable of simultaneously maintaining pressure and plasticizing according to an embodiment of the present invention;
FIG. 2 is a side view of an injection molding machine capable of simultaneously maintaining pressure and plasticizing according to an embodiment of the present invention;
FIG. 3 isbase:Sub>A sectional view taken along line A-A of FIG. 2;
FIG. 4 is an enlarged schematic view of FIG. 3 taken at detail B;
FIG. 5 is a second perspective view of an injection molding machine capable of simultaneously maintaining pressure and plasticizing according to an embodiment of the present invention;
FIG. 6 is an enlarged schematic view of a portion D of FIG. 5;
FIG. 7 is a third perspective view of an injection molding machine capable of simultaneously maintaining pressure and plasticizing according to an embodiment of the present invention;
FIG. 8 is an enlarged schematic view of FIG. 7 taken at detail C;
FIG. 9 is a schematic view of the connection of the shift valve core to the piston rod of the first drive member via a cooling connection;
FIG. 10 is a schematic structural view of the shift valve cartridge;
FIG. 11 is a schematic structural view of a first end cap;
fig. 12 is a fourth perspective view of an injection molding machine capable of simultaneously maintaining pressure and plasticizing according to an embodiment of the present invention;
FIG. 13 is an enlarged schematic view of FIG. 12 taken at detail E;
in the figure, 1, shuttle valve seat; 2. injecting glue holes; 3. a slide hole; 4. a changeover valve core; 5. a through hole; 6. a first driving member; 7. a pressure-retaining rod; 8. a second driving member; 9. a first heat-conducting plate; 10. a second heat-conducting plate; 11. a connecting plate; 12. a first connecting pin; 13. a second connecting pin; 14. shooting mouth; 15. a first heat dissipation gap; 16. a second heat dissipation gap; 17. a first arc surface; 18. a third heat dissipation gap; 19. a second arc surface; 20. a fourth heat dissipation gap; 21. a gel storing lubricating groove; 22. connecting a guide rod; 23. a guide key; 24. a first end cap; 25. a glue gathering ring; 26. a first glue guiding groove; 27. a glue gathering ring groove; 28. a guide groove; 29. moving and shooting the bracket; 30. a working platform; 31. a barrel support; 32. a guide roller; 33. a guide rail; 34. an injection molding machine body; 35. and (4) injection molding of a cylinder.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1 to 13, the present invention provides a technical solution:
example (b):
as shown in fig. 1 to 13, an injection molding machine capable of simultaneously maintaining pressure and plasticizing includes an injection molding machine body 34, and a pressure maintaining plasticizing mechanism for switching between on and off of the injection cylinder and the nozzle 14 and maintaining pressure of a mold when the injection cylinder is separated from the nozzle 14 is provided between the injection cylinder of the injection molding machine body 34 and the nozzle 14 of the injection molding machine body 34.
The pressure maintaining plasticizing mechanism comprises a shuttle valve seat 1;
a glue injection hole 2, a sliding hole 3 and a pressure maintaining hole are formed in the shuttle valve seat 1, the glue injection hole 2 is communicated with the injection machine barrel and the injection nozzle 14, the sliding hole 3 and the pressure maintaining hole are arranged in parallel, and the axis of the sliding hole 3 is perpendicular to the axis of the glue injection hole 2;
a conversion valve core 4 capable of axially moving along the sliding hole 3 is arranged in the sliding hole 3, a through hole 5 is arranged on the conversion valve core 4, the through hole 5 is coaxial with the glue injection hole 2 when the injection machine barrel is communicated with the nozzle 14, and the through hole 5 is staggered with the glue injection hole 2 when the injection machine barrel is separated from the nozzle 14; the conversion valve core 4 is driven by a first driving piece 6;
and a pressure maintaining rod 7 capable of moving along the axial direction of the pressure maintaining hole is arranged in the pressure maintaining hole, and the pressure maintaining rod 7 is driven by a second driving piece 8.
Wherein, the first driving piece 6 and the second driving piece 8 are respectively arranged on the side surface of the shuttle valve seat 1 through a limiting column and a mounting plate.
The working principle is as follows: the first driving piece 6 drives the conversion valve core 4 to axially move along the sliding hole 3, and when the through hole 5 is coaxial with the glue injection hole 2, the injection machine barrel is communicated with the injection nozzle 14; when the through hole 5 and the glue injection hole 2 are staggered, the injection machine barrel is isolated from the injection nozzle 14. When the injection machine barrel is communicated with the nozzle 14, normal injection molding can be carried out. After the injection molding is completed, the injection cylinder 35 is separated from the nozzle 14, and at this time, the injection cylinder continues to plasticize and melt the glue.
And the pressure maintaining is carried out at the end of the injection nozzle 14 through a pressure maintaining rod 7, and the pressure maintaining process specifically comprises the following steps: during injection molding, the pressure maintaining rod 7 is extruded by molten glue (molten raw materials), and the pressure maintaining rod 7 moves along the axial direction of the pressure maintaining hole to give way (the giving way gap provides a basis for the giving way of the pressure maintaining rod 7). During pressure maintaining, the second driving part 8 drives the pressure maintaining rod 7 to extrude the molten glue to generate pressure, and further pressure maintaining is carried out on the end of the injection nozzle 14.
The utility model discloses an injection molding machine can realize the injection barrel and penetrate the break-make of mouth 14 through setting up conversion case 4, and injection barrel end plastify melt glue and the pressurize of penetrating the 14 ends of mouth can go on simultaneously when the injection barrel cuts off with penetrating the mouth 14, accomplishes the plastify in the pressurize promptly, can guarantee the operation of moulding plastics in succession, has shortened the cycle of moulding plastics, has improved the efficiency of moulding plastics.
Further, as shown in fig. 7-11, the switching spool 4 is connected to the piston rod of the first driver 6 by a cooling connection;
the cooling connecting piece comprises a first heat-conducting plate 9, a second heat-conducting plate 10 and a connecting plate 11, the first heat-conducting plate 9 and the second heat-conducting plate 10 are arranged in parallel, two ends of the connecting plate 11 are vertically connected with the first heat-conducting plate 9 and the second heat-conducting plate 10, and the first heat-conducting plate 9, the second heat-conducting plate 10 and the connecting plate 11 form a structure with an I-shaped section;
the first heat-conducting plate 9 and the second heat-conducting plate 10 are respectively provided with a first connecting hole and a second connecting hole which are coaxial, the conversion valve core 4 is connected with the first heat-conducting plate 9 and the second heat-conducting plate 10 through the first connecting hole and a first connecting pin 12, and a piston rod of the first oil cylinder is connected with the first heat-conducting plate 9 and the second heat-conducting plate 10 through the second connecting hole and a second connecting pin 13.
When injecting glue, the heat of the molten glue is transferred to the conversion valve core 4, and the heat on the conversion valve core 4 is partially radiated through the end part of the conversion valve core. Due to the existence of the first heat conduction plate 9 and the second heat conduction plate 10, the heat on the conversion valve core 4 is transferred to the surfaces of the first heat conduction plate 9 and the second heat conduction plate 10 for heat dissipation. Part of the heat which is not dissipated is transferred to the piston rod of the first driving member 6 (the heat is also dissipated on the piston rod of the first driving member 6), and because the temperature of the piston rod of the first driving member 6 is lower than the upper limit temperature of the sealing element of the conversion oil cylinder after multiple (at least three) heat dissipations, the sealing element can be prevented from being damaged due to the high temperature generated by the heat transfer of the melting glue.
The first heat dissipation gap 15 and the second heat dissipation gap 16 are arranged therein, so that the end of the conversion valve core 4, the end of the piston rod of the first driving member 6 and the two side surfaces of the connecting plate 11 can be directly contacted with air for heat dissipation.
Taking the temperature of the melting glue as about 290 ℃, the temperature transmitted to the conversion valve core 4 is about 220 ℃, the temperature transmitted to the connecting structure after heat dissipation is about 150 ℃, the temperature transmitted to the piston rod of the first driving part 6 after heat dissipation by the connecting structure is only about 100 ℃, and is lower than the upper limit of the sealing element by 130 ℃, so that the sealing element can be prevented from being damaged by high temperature.
The utility model discloses the piston rod of changeover valve case 4 and conversion hydro-cylinder passes through the connecting piece of I shape to be connected, and it has increased the heat radiating area between the piston rod of changeover valve case 4 and first driving piece 6 under the prerequisite that does not increase whole machine size and complexity to can effectively reduce the temperature that the piston rod brought because of the melten gel heat after dispelling the heat many times.
Further, as shown in fig. 8 and 9, a first heat dissipation gap 15 is provided between the end of the switching valve core 4 and the connecting plate 11, and a second heat dissipation gap 16 is provided between the end of the first driving member (i.e., the end of the switching cylinder) and the connecting plate 11.
The end part of the conversion valve core 4 is provided with symmetrical first horizontal planes and inwards concave first arc surfaces 17, the two first horizontal planes are respectively attached to the surfaces of the first heat conducting plate 9 and the second heat conducting plate 10, and a third heat dissipation gap 18 is formed between the first arc surfaces 17 and the first heat conducting plate 9/the second heat conducting plate 10.
The end of the changeover valve core 4 is provided with symmetrical second horizontal planes and concave second arc surfaces 19, the two second horizontal planes are respectively attached to the surfaces of the first heat conducting plate 9 and the second heat conducting plate 10, and a fourth heat dissipation gap 20 is formed between the second arc surfaces 19 and the first heat conducting plate 9/the second heat conducting plate 10.
The arrangement of the first arc surface 17 and the second arc surface 19 is to increase the contact area between the conversion valve core 4 and air and between the piston rod of the first driving part 6 and air, so that the heat dissipation efficiency of heat in the middle process transmission process is improved. The third heat dissipation gap 18 and the fourth heat dissipation gap 20 are provided to avoid the heat conductive plate from affecting the heat dissipation of the first circular arc surface 17 and the second circular arc surface 19.
Further, as shown in fig. 9, the first connecting pin 12 and the second connecting pin 13 are both hollow structures. The hollow connecting pin can be further used as a heat radiating piece, the hole wall of the through hole 5 can further increase the contact area with air, and further increase the heat radiating area and improve the heat radiating efficiency.
Further, as shown in fig. 10 and 11, at least one glue hiding lubrication groove 21 is respectively arranged on both sides of the through hole 5 of the switch valve core 4.
A connecting guide rod 22 is arranged at the end part of the conversion valve core 4, and a plurality of guide keys 23 are uniformly distributed on the surface of the connecting guide rod 22 along the circumferential direction; the connecting guide rod 22 and the conversion valve core 4 are of an integrated structure, and the connecting guide rod 22 is connected with a cooling connecting piece.
Connect the outside first end cover 24 that is equipped with of guide bar 22, first end cover 24 and 1 fixed connection of disk seat that shuttles back and forth, first end cover 24 is the loop configuration, first end cover 24's inner edge be equipped with guide key 23 sliding fit's guide way 28, first end cover 24 is close to the one end terminal surface that shoots forth mouth 14 and is equipped with coaxial glue ring 25 that gathers, the inner edge diameter of glue ring 25 is greater than first end cover 24's inner edge diameter, first end cover 24 is close to 1 end terminal surface of disk seat that shuttles back and forth and is equipped with first glue groove 26 that leads, it gathers gluey annular 27 to form between ring 25 and the 24 terminal surfaces of first end cover, gather gluey annular 27 with first glue groove 26 intercommunication that leads.
When the changeover valve core 4 is in a station where the injection machine barrel is communicated with the nozzle 14, a small amount of molten glue enters the glue hiding lubricating groove 21 through a gap between the changeover valve core 4 and the sliding hole 3 for storage. When the conversion valve core 4 moves, the molten glue in the glue hiding lubricating groove 21 serves as a lubricating agent to play a lubricating role, so that the friction between the conversion valve core 4 and the shuttle valve seat 1 is reduced, and the moving smoothness of the conversion valve core 4 is improved. Because the molten rubber in the rubber hiding lubrication groove 21 is derived from the injection machine barrel, the lubricant does not need to be supplemented into the rubber hiding lubrication groove 21, the supplement of the lubricant can be realized in the injection molding process, and the self-lubrication of the conversion valve core 4 is realized through the rubber hiding lubrication groove 21.
The lubricating device of the utility model does not need to supplement the lubricant into the gel storage lubricating groove 21, can realize the supplement of the lubricant in the injection molding process, and realizes the self-lubrication of the changeover valve core 4 through the gel storage lubricating groove 21; the self-lubricating through the conversion valve core 4 reduces the friction between the conversion valve core 4 and the shuttle valve seat 1 when moving, effectively reduces the abrasion between the conversion valve core 4 and the shuttle valve seat, prolongs the service life of the conversion valve core and the shuttle valve seat, and can avoid the increase of the rubber leakage amount caused by the abrasion.
Wherein a glue overflow gap for the glue to flow out is formed between the first glue guiding groove 26 and the shuttle valve seat 1. The connecting guide rod 22 has a diameter smaller than that of the switch core 4.
The first glue guiding groove 26 is arranged vertically downwards.
The glue ring 25 and the first end cap 24 are of an integrated structure.
The first end cover 24 is provided with a plurality of threaded holes, and the first end cover 24 is connected with the shuttle valve seat 1 through the threaded holes and bolts.
Wherein, the one end that first driving piece 6 was kept away from to slide opening 3 is equipped with the second end cover, is equipped with the second that vertically descends and leads gluey groove on the second end cover.
When the transfer valve core 4 is in a station where the injection machine barrel is communicated with the nozzle 14, a small amount of molten glue enters the glue hiding lubrication groove 21 through a gap between the transfer valve core 4 and the sliding hole 3, and enters the glue gathering ring groove 27 after the glue hiding lubrication groove 21 is full of glue. After gathering gluey annular 27 and gluing, unnecessary colloid flows to the disk seat 1 outside of shuttling through vertical first gluey groove 26 of leading, and it can collect unnecessary colloid to set up the gluey bucket of connecing in first gluey groove 26 below of leading this moment, avoids the colloid extravagant.
The colloid in the glue gathering ring groove 27 is used for lubricating the connecting guide rod 22, the connecting guide rod 22 passes through the glue gathering ring groove 27 when moving, and the colloid in the glue gathering ring groove 27 is attached to and connected with the connecting guide rod 22 to serve as a lubricant, so that the lubricating effect is achieved.
And the guide key 23 on the connecting guide rod 22 is matched with the guide groove 28, so that the conversion valve core 4 can be prevented from rotating in the motion process, and the through hole 5 can be prevented from being dislocated.
The first end cover 24 is convenient for draining the glue during glue running, and the recycling rate of the glue running glue is improved.
Further, as shown in fig. 12 and 13, the injection molding machine body 34 is slidably mounted on a working platform 30 through a transfer support 29, a barrel support 31 is arranged on the working platform 30, a roller seat is arranged on the barrel support 31, and a guide roller 32 is arranged on the roller seat;
the bottom of the injection machine barrel is provided with a guide rail 33, and the guide rail 33 is matched with the guide roller 32.
The moving injection support is convenient for the injection molding machine body to move, the guide rail, the roller and the machine barrel support are arranged to support the injection machine barrel, and the roller and the guide rail guide the injection machine barrel when the injection machine barrel moves.
The foregoing is illustrative of the preferred embodiments of the present invention, and it is to be understood that the invention is not limited to the precise forms disclosed herein, and that various other combinations, modifications, and environments may be resorted to, falling within the scope of the invention as defined by the appended claims. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention, which is to be limited only by the claims appended hereto.
Claims (9)
1. The utility model provides a can carry out pressurize, plasticized injection molding machine simultaneously which characterized in that: the injection molding machine comprises an injection molding machine body, wherein a pressure maintaining plasticizing mechanism for switching the on-off of an injection machine barrel and a nozzle is arranged between the injection machine barrel of the injection molding machine body and the nozzle of the injection molding machine body and maintaining pressure of a mold when the injection machine barrel is separated from the nozzle;
the pressure maintaining plasticizing mechanism comprises a shuttle valve seat;
a glue injection hole, a sliding hole and a pressure maintaining hole are formed in the shuttle valve seat, the glue injection hole is communicated with the injection machine barrel and the injection nozzle, the sliding hole and the pressure maintaining hole are arranged in parallel, and the axis of the sliding hole is perpendicular to the axis of the glue injection hole;
a conversion valve core capable of axially moving along the sliding hole is arranged in the sliding hole, a through hole is formed in the conversion valve core, the through hole is coaxial with the glue injection hole when the injection machine barrel is communicated with the nozzle, and the through hole is staggered with the glue injection hole when the injection machine barrel is separated from the nozzle; the conversion valve core is driven by a first driving piece;
and a pressure maintaining rod capable of moving along the axial direction of the pressure maintaining hole is arranged in the pressure maintaining hole and is driven by a second driving piece.
2. The injection molding machine capable of simultaneously performing pressure holding and plasticizing according to claim 1, characterized in that: the first driving piece is a first oil cylinder, the second driving piece is a second oil cylinder, a piston rod of the second driving piece is coaxial with the pressure maintaining rod, and a yielding gap is arranged between the piston rod of the second driving piece and the pressure maintaining rod.
3. The injection molding machine capable of simultaneously performing pressure holding and plasticizing according to claim 2, characterized in that: the conversion valve core is connected with a piston rod of the first driving piece through a cooling connecting piece;
the cooling connecting piece comprises a first heat-conducting plate, a second heat-conducting plate and a connecting plate, the first heat-conducting plate and the second heat-conducting plate are arranged in parallel, two ends of the connecting plate are vertically connected with the first heat-conducting plate and the second heat-conducting plate, and the first heat-conducting plate, the second heat-conducting plate and the connecting plate form a structure with an I-shaped section;
the first heat-conducting plate and the second heat-conducting plate are respectively provided with a first connecting hole and a second connecting hole which are coaxial, the conversion valve core is connected with the first heat-conducting plate and the second heat-conducting plate through the first connecting hole and the first connecting pin, and the piston rod of the first oil cylinder is connected with the first heat-conducting plate and the second heat-conducting plate through the second connecting hole and the second connecting pin.
4. The injection molding machine capable of simultaneously performing pressure holding and plasticizing according to claim 3, characterized in that: a first heat dissipation gap is arranged between the end of the conversion valve core and the connecting plate, and a second heat dissipation gap is arranged between the end of the first driving piece and the connecting plate.
5. The injection molding machine capable of simultaneously performing pressure holding and plasticizing according to claim 4, wherein: the end part of the conversion valve core is provided with a first horizontal plane and a first arc surface which is concave inwards, the first horizontal plane and the first heat conducting plate are respectively attached to the surfaces of the first heat conducting plate and the second heat conducting plate, and a third heat dissipation gap is formed between the first arc surface and the first heat conducting plate/the second heat conducting plate.
6. The injection molding machine capable of simultaneously performing pressure holding and plasticizing according to claim 5, wherein: the first connecting pin and the second connecting pin are both hollow structures.
7. The injection molding machine capable of simultaneously performing pressure holding and plasticizing according to claim 1, characterized in that: at least one glue hiding lubricating groove is respectively arranged on two sides of the through hole of the conversion valve core.
8. The injection molding machine capable of simultaneously performing pressure holding and plasticizing according to claim 7, wherein: the end part of the conversion valve core is provided with a connecting guide rod, and a plurality of guide keys are uniformly distributed on the surface of the connecting guide rod along the circumferential direction of the connecting guide rod;
connect the guide bar outside and be equipped with first end cover, first end cover and the disk seat fixed connection that shuttles back and forth, first end cover is the annular structure, the inner edge of first end cover be equipped with guide key sliding fit's guide way, first end cover is close to the one end terminal surface of penetrating the mouth and is equipped with coaxial polyblock ring, the inner edge diameter of polyblock ring is greater than the inner edge diameter of first end cover, first end cover is close to the disk seat one end terminal surface that shuttles back and is equipped with first gluey groove of leading, it gathers gluey annular to form between gluey ring and the first end cover terminal surface, gather gluey annular with first gluey groove intercommunication of leading.
9. An injection molding machine capable of simultaneously performing pressure holding and plasticizing according to any one of claims 1 to 8, characterized in that: the injection molding machine body is slidably mounted on a working platform through a transfer support, the working platform is provided with a machine barrel support, the machine barrel support is provided with a roller seat, and the roller seat is provided with a guide roller;
the bottom of the injection machine barrel is provided with a guide rail, and the guide rail is matched with the guide roller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117549487A (en) * | 2024-01-11 | 2024-02-13 | 成都鸿能精密机械有限公司 | Shuttle valve assembly |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117549487A (en) * | 2024-01-11 | 2024-02-13 | 成都鸿能精密机械有限公司 | Shuttle valve assembly |
| CN117549487B (en) * | 2024-01-11 | 2024-04-12 | 成都鸿能精密机械有限公司 | Shuttle valve assembly |
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