CN210436526U

CN210436526U - Injection mold capable of avoiding incomplete filling of mold

Info

Publication number: CN210436526U
Application number: CN201921275643.1U
Authority: CN
Inventors: 任保侦
Original assignee: Top One Mould Ltd
Current assignee: Top One Mould Ltd
Priority date: 2019-08-08
Filing date: 2019-08-08
Publication date: 2020-05-01
Anticipated expiration: 2029-08-08

Abstract

The utility model discloses an avoid injection mold of mould insufficient filling, comprising a lower die, the sealing washer, go up the mould, cartridge filter and intake pipe, go up and set up the sealing washer between mould and the lower mould, the internally mounted of screw thread mouth of moulding plastics has the cavity screwed pipe, the air discharge nozzle is installed to the bottom of cavity screwed pipe, the cartridge filter is installed to the top of cavity screwed pipe, the intake pipe is installed to the top of cartridge filter, the internally mounted of cartridge filter has first filter screen, the cartridge filter internally mounted of first filter screen below has the active carbon, the cartridge filter internally mounted of active carbon below has the second filter screen, the last mould internally mounted of screw thread mouth one side of moulding plastics has the blast pipe. The utility model discloses have good seal structure, avoid gaseous scattering and disappearing, reduce the influence of air to injection moulding product, effectively solve injection mold's leakproofness and need strengthen the problem, utilize the sealing washer to completely cut off the gap between last mould and the lower mould in addition, avoid the entering of air, realize good sealed function, increase the product percent of pass.

Description

Injection mold capable of avoiding incomplete filling of mold

Technical Field

The utility model relates to an injection moulding processing technology field specifically is an avoid the not fully filled injection mold of mould.

Background

When processing an injection molding product, an injection mold is usually needed, and the injection mold is a tool for producing a plastic product; and is also a tool for giving the plastic product complete structure and accurate dimension. Injection molding is a process used to mass produce parts of some complex shapes. Specifically, the plastic melted by heating is injected into a mold cavity from an injection molding machine at high pressure, and a formed product is obtained after cooling and solidification. The injection mold is divided into a thermosetting plastic mold and a thermoplastic plastic mold according to the molding characteristics; according to the forming process, the method is divided into a transfer mold, a blow mold, a cast mold, a hot forming mold, a hot pressing mold (compression mold), an injection mold and the like, wherein the hot pressing mold can be divided into a flash type, a semi-flash type and a non-flash type by a flash mode, and the injection mold can be divided into a cold runner mold and a hot runner mold by a pouring system; the device can be divided into a movable type and a fixed type according to the loading and unloading mode. When the injection mold is used, the injection material is required to be injected into the mold for shaping and then taken out.

However, the prior art has the following defects:

1. when an injection mold is used for injection molding, an injection molding material needs to be injected into an inner cavity of the mold, but because the injection molding step is carried out under the normal pressure condition, the injection molding material enters along with air and is mixed in the injection molding material, bubbles are formed after injection, the size of a molded workpiece is not standard enough, and the filling is not sufficient;

2. when the injection mold is used for injection molding, the gas leakage exists in the mold due to the lack of necessary sealing structure for matching, and the molded workpiece is unqualified.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides an avoid the not enough injection mold who fills of mould has solved the injection molding and has added the problem that the material packing is not enough and injection mold's leakproofness needs to be strengthened in the mould in man-hour.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an avoid injection mold of mould insufficient filling, includes lower mould, sealing washer, last mould, cartridge filter and intake pipe, the sealing washer sets up between last mould and lower mould, the internally mounted of going up the mould has the fixed block, the upper end of going up the mould is equipped with the screw thread mouth of moulding plastics, the internally mounted of screw thread mouth of moulding plastics has the cavity screwed pipe, the air discharge nozzle is installed to the bottom of cavity screwed pipe, the cartridge filter is installed to the top of cavity screwed pipe, the intake pipe is installed to the top of cartridge filter, the internally mounted of cartridge filter has first filter screen, the cartridge filter internally mounted of first filter screen below has the active carbon, the cartridge filter internally mounted of active carbon below has the second filter screen, the last mould internally mounted of screw thread mouth one side of moulding plastics.

Preferably, the upper end of lower mould is equipped with the external screw thread arch, the bottom of going up the mould inboard is equipped with the internal thread groove, the lower mould passes through the external screw thread arch to be connected with the internal thread groove rotation in the last mould, and the protruding outside cover of external screw thread is equipped with the sealing washer.

Preferably, the upper end of the hollow threaded pipe is connected with the filter cylinder through a second threaded interface, and the upper end of the filter cylinder is connected with the air inlet pipe through a first threaded interface.

Preferably, the inside of going up mould and lower mould is equipped with the chamber of moulding plastics, the material of moulding plastics has been placed to the inside in chamber of moulding plastics.

Preferably, the bottom end of the exhaust pipe penetrates through the upper die and the fixing block to be located in the injection molding cavity, and the upper end of the exhaust pipe extends out of the upper die.

Preferably, the bottom surface of the exhaust nozzle is uniformly provided with air outlet holes.

(III) advantageous effects

The utility model provides an avoid the not injection mold who fully fills of mould possesses following beneficial effect:

(1) the utility model can effectively avoid the problem of insufficient filling of the injection molding material during injection molding of the injection mold by arranging the upper mold, the lower mold, the exhaust pipe, the air inlet pipe, the filter cartridge, the hollow threaded pipe and the exhaust nozzle, can discharge the air in the injection molding material to the maximum degree, and improve the forming qualification rate of products, thereby effectively solving the problem of insufficient filling of the material in the mold during injection molding processing, when the injection molding processing is carried out, the upper mold and the lower mold are fixed, the sprue bush is placed on the threaded injection molding port, the injection molding material is injected into the injection molding cavity, certain bubbles and air exist in the sprue bush after the injection molding material is injected, the sprue bush is taken away at the moment, the exhaust nozzle is arranged at the bottom end of the hollow threaded pipe, the hollow threaded pipe is screwed into the threaded injection molding port, and is connected with the filter cartridge at the upper end through the second threaded interface at the bottom, filter cartridge top is through first hickey and intake-tube connection, and the intake pipe is connected with external air supply equipment, air supply equipment passes through the intake pipe to the intracavity portion air feed of moulding plastics, carry out the pressure boost, gaseous first filter screen through the filter cartridge, activated carbon and second filter screen realize multiple filtration and adsorb, detach impurity and peculiar smell, provide fresh air, get into the air discharge nozzle through hollow thread intraductal afterwards, the venthole through the air discharge nozzle bottom evenly discharges, carry out the pressure boost to the intracavity of moulding plastics, extrude the intracavity of moulding plastics of discharging to the material top of moulding plastics with the bubble in the material of moulding plastics, after the pressure boost a period, open the blast pipe through discharge valve, discharge unnecessary air, so after repeating several times, behind the clean bubble of row, can carry out the design operation of moulding plastics.

(2) The utility model discloses a set up the sealing washer, go up the mould, the lower mould, make the utility model discloses have good seal structure, gaseous scattering and disappearing has been avoided, reduce the influence of air to injection moulding product, the effectual problem that injection moulding mould's leakproofness need be strengthened of having solved, when last mould and lower mould are connected, be equipped with the sealing washer through the protruding outside cover of external screw thread in the lower mould upper end, pass through the internal thread groove rotation in the external screw thread arch and the last mould with the lower mould again and be connected, it is fixed to realize, and utilize the sealing washer to isolate the gap between last mould and the lower mould, avoid the entering of air, realize good sealing function, increase.

Drawings

Fig. 1 is a schematic view of the internal structure of the present invention;

FIG. 2 is a schematic view of the internal structure of the upper mold and the lower mold of the present invention;

FIG. 3 is a connection diagram of the filter cartridge and the hollow threaded pipe according to the present invention;

fig. 4 is the internal structure diagram of the exhaust nozzle of the present invention.

The reference numbers in the figures are: 1. a lower die; 2. a seal ring; 3. an upper die; 4. a fixed block; 5. an exhaust pipe; 6. an exhaust valve; 7. a hollow threaded pipe; 8. a filter cartridge; 9. an air inlet pipe; 10. a first threaded interface; 11. a second threaded interface; 12. a threaded injection molding port; 13. an exhaust nozzle; 14. an injection molding cavity; 15. injection molding a material; 16. an internal thread groove; 17. the external thread is convex; 18. a first filter screen; 19. activated carbon; 20. a second filter screen; 21. and an air outlet.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in FIGS. 1-4, the utility model provides an injection mold for avoiding incomplete filling of the mold, which comprises a lower mold 1, a sealing ring 2, an upper mold 3, a filter cartridge 8 and an air inlet pipe 9, wherein the sealing ring 2 is arranged between the upper mold 3 and the lower mold 1, an external thread bulge 17 is arranged at the upper end of the lower mold 1, an internal thread groove 16 is arranged at the bottom end of the inner side of the upper mold 3, the lower mold 1 is rotatably connected with the internal thread groove 16 in the upper mold 3 through the external thread bulge 17, the sealing ring 2 is sleeved outside the external thread bulge 17, when the upper mold 3 is connected with the lower mold 1, the sealing ring 2 is sleeved outside the external thread bulge 17 at the upper end of the lower mold 1, the lower mold 1 is rotatably connected with the internal thread groove 16 in the upper mold 3 through the external thread bulge 17, so as to realize fixation, and the gap between, the product percent of pass is increased, an injection molding cavity 14 is arranged inside the upper die 3 and the lower die 1, an injection molding material 15 is placed inside the injection molding cavity 14, a fixing block 4 is arranged inside the upper die 3, a threaded injection molding port 12 is arranged at the upper end of the upper die 3, a hollow threaded pipe 7 is arranged inside the threaded injection molding port 12, an exhaust nozzle 13 is arranged at the bottom end of the hollow threaded pipe 7, air outlet holes 21 are uniformly formed in the bottom surface of the exhaust nozzle 13, a filter cartridge 8 is arranged above the hollow threaded pipe 7, an air inlet pipe 9 is arranged above the filter cartridge 8, the upper end of the hollow threaded pipe 7 is connected with the filter cartridge 8 through a second threaded connector 11, the upper end of the filter cartridge 8 is connected with the air inlet pipe 9 through a first threaded connector 10, a first filter screen 18 is arranged inside the filter cartridge 8, activated carbon 19 is arranged inside the filter cartridge 8 below the, an exhaust pipe 5 is arranged in the upper die 3 on one side of a threaded injection port 12, an exhaust valve 6 is arranged on the surface of the exhaust pipe 5, the bottom end of the exhaust pipe 5 penetrates through the upper die 3 and a fixing block 4 and is positioned in an injection cavity 14, the upper end of the exhaust pipe 5 extends out of the upper side of the upper die 3, when the injection molding is carried out, the upper die 3 and the lower die 1 are fixed, a sprue bush is placed on the threaded injection port 12, an injection molding material 15 is injected into the injection cavity 14, certain bubbles and air exist in the injection molding material 15, the sprue bush is taken away at the moment, an exhaust nozzle 13 is arranged at the bottom end of a hollow threaded pipe 7, the hollow threaded pipe 7 is screwed into the threaded injection port 12, the upper end of the hollow threaded pipe is connected with a filter cylinder 8 through a second threaded port 11 at the bottom of the filter cylinder 8, the upper side of the filter cylinder 8 is connected with, air supply equipment supplies air to the inside of an injection molding cavity 14 through an air inlet pipe 9, pressurization is carried out, the air passes through a first filter screen 18 in a filter cylinder 8, multiple filtration and adsorption are realized through activated carbon 19 and a second filter screen 20, impurities and peculiar smell are removed, fresh air is provided, then, the air enters an exhaust nozzle 13 through a hollow threaded pipe 7, the air is uniformly discharged through an air outlet 21 at the bottom of the exhaust nozzle 13, the inside of the injection molding cavity 14 is pressurized, bubbles in an injection molding material 15 are extruded and discharged into the injection molding cavity 14 above the injection molding material 15, after the air is pressurized for a period of time, an exhaust pipe 5 is opened through an exhaust valve 6, redundant air is discharged, after the operation is repeated for several times, and after the bubbles are exhausted, injection molding and shaping operation can.

The working principle is as follows: when injection molding is carried out, an upper die 3 and a lower die 1 are fixed, a sealing ring 2 is sleeved outside an external thread bulge 17 at the upper end of the lower die 1, the lower die 1 is rotatably connected with an internal thread groove 16 in the upper die 3 through the external thread bulge 17, a gap between the upper die 3 and the lower die 1 is isolated by using the sealing ring 2, a sprue bush is placed on a thread injection molding port 12, an injection molding material 15 is injected into an injection molding cavity 14, certain bubbles and air exist in the injection molding material 15 after the injection molding material 15 is injected, the sprue bush is taken away at the moment, an exhaust nozzle 13 is installed at the bottom end of a hollow threaded pipe 7, the hollow threaded pipe 7 is screwed into the thread injection molding port 12, the upper end of the hollow threaded pipe is connected with a filter cylinder 8 through a second threaded port 11 at the bottom of the filter cylinder 8, the upper part of the filter cylinder 8 is connected with an air inlet pipe 9, the air supply equipment supplies air to the inside of the injection molding cavity 14 through the air inlet pipe 9, pressurization is carried out, the air passes through the first filter screen 18, the activated carbon 19 and the second filter screen 20 in the filter cylinder 8 to realize multi-filtration adsorption, impurities and peculiar smell are removed, fresh air is provided, then, the air enters the exhaust nozzle 13 through the hollow threaded pipe 7, the air is uniformly discharged through the air outlet 21 at the bottom of the exhaust nozzle 13, the injection molding cavity 14 is pressurized, bubbles in the injection molding material 15 are extruded and discharged into the injection molding cavity 14 above the injection molding material 15, after the pressurization is carried out for a period of time, the exhaust pipe 5 is opened through the exhaust valve 6, redundant air is discharged, after the operation is repeated for several times, injection molding shaping operation can be carried out after the bubbles are exhausted, and injection molding.

To sum up can, the utility model discloses a set up mould 3, lower mould 1, blast pipe 5, intake pipe 9, cartridge filter 8, cavity screwed pipe 7, exhaust nozzle 13, sealing washer 2 structure, solved the injection molding man-hour in the mould material fill not enough with injection mold's leakproofness need strengthen the problem.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an avoid injection mold that mould was not fully filled, includes lower mould (1), sealing washer (2), goes up mould (3), cartridge filter (8) and intake pipe (9), sealing washer (2) set up between last mould (3) and lower mould (1), its characterized in that: a fixed block (4) is arranged inside the upper die (3), a threaded injection molding opening (12) is arranged at the upper end of the upper die (3), a hollow threaded pipe (7) is arranged in the threaded injection molding opening (12), an exhaust nozzle (13) is arranged at the bottom end of the hollow threaded pipe (7), a filter cylinder (8) is arranged above the hollow threaded pipe (7), an air inlet pipe (9) is arranged above the filter cylinder (8), a first filter screen (18) is arranged in the filter cylinder (8), activated carbon (19) is arranged in the filter cylinder (8) below the first filter screen (18), a second filter screen (20) is arranged in the filter cylinder (8) below the active carbon (19), the upper die (3) on one side of the threaded injection molding opening (12) is internally provided with an exhaust pipe (5), and the surface of the exhaust pipe (5) is provided with an exhaust valve (6).

2. An injection mold for avoiding mold underfill as set forth in claim 1 wherein: the upper end of lower mould (1) is equipped with external screw thread arch (17), the bottom of going up mould (3) inboard is equipped with internal thread groove (16), lower mould (1) is connected through the rotation of internal thread groove (16) in external screw thread arch (17) and last mould (3), and the protruding (17) outside cover of external screw thread is equipped with sealing washer (2).

3. An injection mold for avoiding mold underfill as set forth in claim 1 wherein: the upper end of the hollow threaded pipe (7) is connected with the filter cartridge (8) through a second threaded connector (11), and the upper end of the filter cartridge (8) is connected with the air inlet pipe (9) through a first threaded connector (10).

4. An injection mold for avoiding mold underfill as set forth in claim 1 wherein: the injection molding machine is characterized in that injection molding cavities (14) are arranged in the upper die (3) and the lower die (1), and injection molding materials (15) are placed in the injection molding cavities (14).

5. An injection mold for avoiding mold underfill as set forth in claim 1 wherein: the bottom end of the exhaust pipe (5) penetrates through the upper die (3) and the fixed block (4) to be located in the injection molding cavity (14), and the upper end of the exhaust pipe (5) extends out of the upper portion of the upper die (3).

6. An injection mold for avoiding mold underfill as set forth in claim 1 wherein: and air outlet holes (21) are uniformly formed in the bottom surface of the exhaust nozzle (13).