CN113927839A - A barrel injection mold with a spiral groove - Google Patents
A barrel injection mold with a spiral groove Download PDFInfo
- Publication number
- CN113927839A CN113927839A CN202111157773.7A CN202111157773A CN113927839A CN 113927839 A CN113927839 A CN 113927839A CN 202111157773 A CN202111157773 A CN 202111157773A CN 113927839 A CN113927839 A CN 113927839A
- Authority
- CN
- China
- Prior art keywords
- plate
- mold
- fixedly connected
- fixing plate
- fixed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000002347 injection Methods 0.000 title claims abstract description 21
- 239000007924 injection Substances 0.000 title claims abstract description 21
- 239000000498 cooling water Substances 0.000 claims abstract description 11
- 239000004033 plastic Substances 0.000 abstract description 31
- 238000001816 cooling Methods 0.000 abstract description 7
- 238000000465 moulding Methods 0.000 abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- 230000007246 mechanism Effects 0.000 abstract description 2
- 239000000155 melt Substances 0.000 abstract 1
- 238000010137 moulding (plastic) Methods 0.000 abstract 1
- 238000001746 injection moulding Methods 0.000 description 15
- 238000000034 method Methods 0.000 description 8
- 230000009471 action Effects 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 238000005452 bending Methods 0.000 description 3
- 238000005266 casting Methods 0.000 description 3
- 210000003127 knee Anatomy 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 229920001169 thermoplastic Polymers 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000013507 mapping Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000002991 molded plastic Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000012916 structural analysis Methods 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
Classifications
-
- 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
- B29C45/2602—Mould construction elements
- B29C45/2606—Guiding or centering means
-
- 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
- B29C45/27—Sprue channels ; Runner channels or runner nozzles
-
- 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
- B29C45/33—Moulds having transversely, e.g. radially, movable mould parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/40—Removing or ejecting moulded articles
- B29C45/44—Removing or ejecting moulded articles for undercut articles
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
本发明公开了一种带螺旋凹槽的圆桶件注射模具，涉及塑料成型模具技术领域。本发明包括动模座板，动模座板的顶端固定连接有动模固定板，动模固定板的一侧固定连接有扣机，动模固定板的顶端固定连接有推板，推板的顶端固定连接有定模板，推板的一侧固定有推板镶件。本发明通过结构的设计，达到一模两件的设计目的，并采用热射嘴保证熔体填充顺畅、快速，且通过采用定模侧向哈夫抽芯机构的设计便于完成对塑件顶部螺旋凹槽的成型，且通过在动模型芯内采用螺旋水槽冷却，定模型芯和定模镶件采用环形冷却水槽，有效缩短塑造件周期，通过结构的设计，在注塑生产时通过将结构设计，稳定的降低模具高度。
The invention discloses an injection mold for a barrel part with a spiral groove, which relates to the technical field of plastic molding molds. The invention includes a movable die base plate, a movable die fixing plate is fixedly connected to the top of the movable die base plate, a button machine is fixedly connected to one side of the movable die fixing plate, and a push plate is fixedly connected to the top of the movable die fixing plate. The top is fixedly connected with a fixed template, and one side of the push plate is fixed with a push plate insert. Through the design of the structure, the present invention achieves the design purpose of one mold and two pieces, and adopts hot nozzles to ensure smooth and fast filling of the melt, and the design of the fixed mold lateral Hough core pulling mechanism is used to facilitate the completion of the screw on the top of the plastic part. The groove is formed, and the spiral water tank is used for cooling in the movable mold core, and the fixed mold core and the fixed mold insert use an annular cooling water tank, which effectively shortens the molding cycle. Stable reduction of mold height.
Description
Technical Field
The invention relates to the technical field of plastic forming molds, in particular to a barrel part injection mold with a spiral groove.
Background
The injection mold is characterized in that plastic is heated and melted in a heating charging barrel of an injection machine, is pushed by a screw or a plunger, enters a mold cavity through a nozzle and a pouring system of the mold, is hardened and shaped in the mold cavity, is used for molding thermoplastic plastic products, and occupies a large proportion in the molding of the plastic products, but the existing injection mold has the following problems when processing barrel parts:
1. the adopted nozzle injection mode is inconvenient to ensure smooth and quick melt filling;
2. the molding of the spiral groove at the top of the plastic part is not convenient to complete;
3. the cooling time of the plastic part cannot be effectively shortened;
4. the height of the mold is often too high due to the design of the internal mounting structure.
Disclosure of Invention
The invention aims to provide a barrel part injection mould with a spiral groove, which aims to solve the existing problems: the cooling time of the plastic part cannot be effectively shortened.
In order to achieve the purpose, the invention provides the following technical scheme: a barrel part injection mold with a spiral groove comprises a movable mold base plate, wherein a movable mold fixing plate is fixedly connected to the top end of the movable mold base plate, a fastening machine is fixedly connected to one side of the movable mold fixing plate, a push plate is fixedly connected to the top end of the movable mold fixing plate, a fixed mold plate is fixedly connected to the top end of the push plate, a push plate insert is fixed to one side of the push plate, a fixed mold insert is fixedly connected to the inner side of the fixed mold plate, a limit nail is fixed to the inner side of the fixed mold plate, a first spring is further arranged on the inner side of the fixed mold plate, a first spring is installed in a hole in one side of a fixed mold half block, a bent pin fixing plate is fixedly connected to the top end of the fixed mold plate through the limit nail, the fixed mold half block is slidably connected to the inner side of the bent pin fixing plate, a bent pin is fixedly connected to the inner portion of the bent pin fixing plate, and a hot nozzle fixing plate is arranged at the top end of the bent pin fixing plate, the top end of the hot nozzle fixing plate is provided with a supporting plate, the top end of the supporting plate is provided with a fixed die base plate, the inner side of the supporting plate is provided with a hot runner plate, the top end of the hot runner plate is fixedly connected with a positioning ring, the bottom end of the hot runner plate is fixedly connected with a hot nozzle, the outer side of the hot nozzle is sleeved with a fixed mold core, the fixed mold core is positioned at the inner side of the bent pin fixing plate, the inner side of the fixed mold insert is provided with a movable mold core, a distance pull rod is fixedly connected inside one side of the bent pin fixing plate and the fixed template, a third screw is fixedly connected at the bottom end of the distance pull rod, the bottom end of the distance pull rod is fixedly connected with a connecting column through a third screw, the bent pin and the inner part of the fixed template are fixedly connected with a second spring, and a spiral cooling water pipe is arranged in the movable mold core, and an air valve is arranged in the movable mold core.
Preferably, the movable mold base plate is connected with the movable mold fixing plate through a screw, and the mold opening distance of the push plate is controlled by a small pull rod.
Preferably, a second guide pillar is further arranged among the fixed die plate, the push plate and the movable die fixing plate, a second guide sleeve and a third guide sleeve are sleeved on the outer side of the second guide pillar, the second guide sleeve is located inside the fixed die plate, and the third guide sleeve is located inside the push plate.
Preferably, the supporting plate, the hot nozzle fixing plate and the bending pin fixing plate are all fixedly connected with a first guide pillar inside, and a first guide sleeve is sleeved on the outer side of the first guide pillar.
Preferably, a first screw and a second screw are fixed in the fixed die base plate, the supporting plate, the hot nozzle fixing plate and the bent pin fixing plate are fixedly connected through the first screw, and the fixed die base plate, the supporting plate and the hot nozzle fixing plate are further connected through the second screw.
Preferably, the fixed die half block drives the bent pin fixing plate to move through the bent pin.
Preferably, the outer side of the fixed mold insert is provided with an annular cooling water tank.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention achieves the design purpose of one mould with two pieces by the structural design, and adopts the hot nozzle to ensure smooth and quick melt filling;
2. the invention adopts the design of the fixed die lateral half core-pulling mechanism to facilitate the formation of the spiral groove at the top of the plastic part;
3. according to the invention, the spiral water channel is adopted for cooling in the movable mould core, and the annular cooling water channel is adopted for the fixed mould core and the fixed mould insert, so that the cooling time of the plastic part is effectively reduced;
4. the ejector rod of the machine tool is directly connected with the connecting column through the screw, and the connecting column is connected with the push plate through the screw to push out the plastic part, so that the height of the die is effectively reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a side cross-sectional view of the die assembly of the present invention;
FIG. 2 is a front cross-sectional view of the die assembly of the present invention;
FIG. 3 is a cover mold scheduling diagram of the present invention;
FIG. 4 is a moving die permutation map of the present invention;
FIG. 5 is a schematic view of a molded plastic part according to the present invention;
FIG. 6 is a schematic view of a cage.
In the figure: 1. a movable mould seat plate; 2. a movable mold fixing plate; 3. buckling machine; 4. a first small pull rod; 5. pushing the plate; 6. a push plate insert; 7. fixing a template; 8. a fixed die insert; 9. a first spring; 10. a limit pin; 11. a fixed mold half block; 12. bending a pin; 13. a bending pin fixing plate; 14. a hot nozzle fixing plate; 15. a hot runner plate; 16. a support plate; 17. a fixed die base plate; 18. a first screw; 19. a second screw; 20. a hot nozzle; 21. fixing a mold core; 22. a movable mold core; 23. a distance pull rod; 24. a third screw; 25. connecting columns; 26. a spiral cooling water pipe; 27. an air valve; 28. a second spring; 29. a first guide sleeve; 30. a first guide post; 31. positioning rings; 32. a second guide sleeve; 33. a third guide sleeve; 34. and a second guide post.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-6, a barrel part injection mold with a spiral groove comprises a movable mold base plate 1, a movable mold fixing plate 2 is fixedly connected to the top end of the movable mold base plate 1, a fastening machine 3 is fixedly connected to one side of the movable mold fixing plate 2, a push plate 5 is fixedly connected to the top end of the movable mold fixing plate 2, a fixed mold plate 7 is fixedly connected to the top end of the push plate 5, a push plate insert 6 is fixed to one side of the push plate 5, a fixed mold insert 8 is fixedly connected to the inner side of the fixed mold plate 7, a limit pin 10 is fixed to the inner side of the fixed mold plate 7, a first spring 9 is further arranged on the inner side of the fixed mold plate 7, a first spring 9 is arranged in a hole on one side of a fixed mold half huff block 11, a bent pin fixing plate 13 is fixedly connected to the top end of the fixed mold plate 7 through the limit pin 10, a fixed mold half huff block 11 is slidably connected to the inner side of the bent pin fixing plate 13, a bent pin 12 is fixedly connected to the inside of the bent pin fixing plate 13, and a hot nozzle fixing plate 14 is arranged on the top end of the bent pin fixing plate 13, the top of hot nozzle fixed plate 14 is provided with backup pad 16, the top of backup pad 16 is provided with fixed die bedplate 17, the inboard of backup pad 16 is provided with hot runner plate 15, the top fixedly connected with position circle 31 of hot runner plate 15, the bottom fixedly connected with hot nozzle 20 of hot runner plate 15, fixed die core 21 has been cup jointed in the outside of hot nozzle 20, fixed die core 21 is located the inboard of knee pin fixed plate 13, the inboard of fixed die insert 8 is provided with movable mould core 22, the inside fixedly connected with distance pull rod 23 of knee pin fixed plate 13 and fixed die plate 7 one side, the bottom of distance pull rod 23 is through third screw 24 fixedly connected with spliced pole 25, the inside fixedly connected with second spring 28 of knee pin 12 and fixed die plate 7, spiral condenser tube 26 has been seted up to movable mould core 22's inside, the inside of movable mould core 22 is provided with pneumatic valve 27.
The movable mould base plate 1 is connected with the movable mould fixing plate 2 through a screw;
a second guide post 34 is further arranged among the fixed die plate 7, the push plate 5 and the movable die fixing plate 2, a second guide sleeve 32 and a third guide sleeve 33 are sleeved on the outer side of the second guide post 34, the second guide sleeve 32 is positioned inside the fixed die plate 7, and the third guide sleeve 33 is positioned inside the push plate 5;
the inner parts of the supporting plate 16, the hot nozzle fixing plate 14 and the bent pin fixing plate 13 are fixedly connected with a first guide column 30, and the outer side of the first guide column 30 is sleeved with a first guide sleeve 29;
a first screw 18 and a second screw 19 are fixed in the fixed die base plate 17, the supporting plate 16, the hot nozzle fixing plate 14 and the bent pin fixing plate 13 are fixedly connected through the first screw 18, and the fixed die base plate 17, the supporting plate 16 and the hot nozzle fixing plate 14 are also connected through the second screw 19;
the fixed mold half block 11 drives the bent pin and bent pin fixing plate 13 to move through the bent pin 12.
An annular cooling water tank is arranged on the outer side of the fixed mold insert 8.
The device is applied to injection of barrel parts made of PP materials;
through the matching design of the hot nozzle fixing plate 14, the hot runner plate 15 and the hot nozzle 20, an integral hot runner casting system with two hot nozzles and fixed positions is formed, compared with a common casting system, the hot runner casting system is a technology of a thermoplastic injection mold, and has the advantages of simplifying the mold structure, shortening the molding period, stabilizing the change of melt temperature, saving raw materials, improving the product quality, ensuring the filling balance and the like;
the hot runner plate 15 is an open hot runner, and the hot nozzle 20 is an open hot nozzle;
during the injection molding process of the mold, the metal of the hot nozzle thermally expands. Therefore, the bulging size of the set of die hot-jet nozzle is as follows:
the calculation formula of the thermal expansion size of the thermal nozzle and the specific numerical value of the thermal expansion size of the thermal nozzle in this embodiment are as follows:
in the formula, the expansion length is calculated for all the heat nozzles to be used as reference;
length of hot nozzle at room temperature, unit: mm;
the working size of the hot nozzle, namely the length of the hot nozzle after temperature rise and expansion, unit: mm;
temperature difference between melt temperature and mold temperature, unit: DEG C;
the expansion coefficient of the material used for the heat shooting nozzle is generally taken;
the size of the positioning ring 31 is 100 multiplied by 34 multiplied by 12;
the fixed mold insert 8 is of a circular structure, so that the insert is convenient to process and cool, and meanwhile, the circular structure is designed to ensure the coaxiality of the inner cylinder and the outer cylinder of the plastic part;
four fixed mold half blocks 11 are arranged in the mold, so that the core can be pulled laterally conveniently, the front end of each fixed mold half block 11 is designed according to the size of 1/2 at the top end part of the plastic part, and the whole fixed mold half block 11 is in an irregular rectangular T-shaped plate shape;
the main working part of the fixed mold core 21 of the round barrel mold is the contact part with a plastic part, the top of a barrel part is round, so the working part of the fixed mold core 21 is round, the fixed mold core 21 and a bent pin fixing plate 13 are fastened by screws, and meanwhile, an annular cooling water channel is arranged around the fixed mold core 21, so the parts of the fixed mold core 21 except the fastening part are also designed into round shapes, and the processing and the installation of the water channel are convenient;
the whole of the push plate insert 6 is rectangular plate-shaped, and the top of the push plate insert 6 is matched with the fixed mold insert 8 to form a circular ring bulge, so that the plastic part can be pushed away and the edge of the plastic part can be molded conveniently;
the structural analysis of the barrel part can show that the movable mould core 22 of the barrel part only has a large core required by the deep cavity of the inner surface of the barrel part, the large wrapping force of the barrel part to the large core after the forming is large, the large core is arranged at the movable mould part of the mould, the fastening part at the bottom of the movable mould core 22 is convenient for processing and is designed into a circular shape, the part, which is carried in the movable mould core 22, of a connecting push plate and the part of the plastic part are designed into a circular table shape gradually close to the circular size of the top of the plastic part by combining the shape of the plastic part, and meanwhile, a hole is upwards formed in the movable mould core 22 and is convenient for the arrangement of a spiral cooling water pipe 26 and the installation of a pneumatic push-out device pipeline by matching with an air valve 27;
the top recess of cask finished piece adopts the side direction structure of loosing core, use cover half ha fu piece 11 to loose core, the process of loosing core is gathered and is controlled cover half ha fu piece 11 through bent pin 12, reset and locking, cover half ha fu piece 11 is fixed a position by first spring 9 and stop pin 10 after the mould die sinking, fix a position by the T type groove of cover half ha fu piece 11 self and fixed die plate 7 in the compound die, because the back-off at cask plastic part top is annular, so cover half ha fu piece 11 minimum loose core apart from the degree of depth that does not directly equal to the back-off, minimum loose core apart from finding with the mapping method, detailed process is as follows: the drawing method can obtain that the minimum core pulling distance of the barrel part is 7mm, and then the required safety distance is 3mm, so the core pulling distance of the fixed die half block 11 is 10mm of the limiting nail, and the core pulling distance requirement can be met because the thickness of the bent pin sliding block is larger;
in the embodiment, the mode of pushing out a plastic part by a push plate and pushing out the plastic part by pneumatic combination is adopted for demoulding, wherein the pneumatic demoulding is suitable for pushing out a deep cavity, a thin wall or soft plastic, the formed cylindrical plastic part is a deep cavity and a thin wall, and the effect is excellent by matching with the pneumatic pushing out, and the design finishes the gasification pushing of demoulding by injecting air inwards through an air valve 27;
in the push plate pushing process of the set of the mold, the push plate is pushed by an injection molding machine ejector rod connected to the mold connecting column 25 and is matched with pneumatic pushing to complete the pushing process of the plastic part together, and meanwhile, after the mold is subjected to one-time injection molding, the push plate is pulled back to the original position under the action of the injection molding machine ejector rod to complete the mold resetting process;
because the heat coefficient of water is large, the specific heat capacity is large, and the cost is low, normal-temperature water is selected as a cooling medium, and the film body cooling is completed by injecting the normal-temperature water into the spiral cooling water pipe 26 and the cooling circulation tank;
in the design, a positioning ring 31 is matched with an injection molding machine, joint positioning is carried out in the mold through the matching among a first guide sleeve 29, a first guide post 30, a second guide sleeve 32, a third guide sleeve 33 and a second guide post 34, and the lengths of the first guide sleeve 29, the first guide post 30, the second guide sleeve 32, the third guide sleeve 33 and the second guide post 34 are required to be adjusted according to actual requirements;
the positioning of the hot runner plate 15 adopts pin positioning and plate center pin positioning; the fixed mold core 21, the fixed mold insert 8 and the push plate insert 6 are respectively fastened by adopting corresponding screws and are matched with corresponding fixing plates for positioning;
the movable mold core 22 is matched with a fixed plate corresponding to the movable mold for positioning, and the matching among the inner mold inserts needs to adopt transition matching, so that absolute tightness is ensured, the movable mold core is not frequently disassembled, and the concentricity is better;
the hot nozzle 20 in the selected open type hot runner pouring system is connected with the opening part at the lower end of the positioning ring 31, the upper end of the positioning ring 31 is connected with an injection molding machine, the diameter of a runner of the hot nozzle 20 is 7mm, the top of the positioning ring 31 is connected with a runner opening of the injection molding machine, and the runner system realizes two-point-position glue feeding of a mold through the hot runner plate 15;
the specific implementation mode is as follows:
after the PP plastic is sheared and melted by an injection molding machine, the plastic melt firstly enters a hot runner plate 15 of a hot runner pouring system through a hot nozzle 20 of the hot runner pouring system to split two cavities, enters a die cavity through a flow passage in the injection molding machine, after injection is finished and a barrel workpiece is molded, a movable die plate of the injection molding machine pulls a movable die part of the die to move, under the action of the button machine 3, the fixed die plate 7, the push plate 5 and the movable die fixed plate 2 are fastened, the three plates are fastened, the button machine 3 is simultaneously matched and arranged on a second spring 28 to act together, so that the die is firstly opened from an I-I parting surface, at the moment, the bent pin 12 pulls the fixed die half block 11 to complete the lateral core pulling of the fixed die, the core pulling distance is controlled by the limit nail 10 and the bent pin 12, the first spring 9 prevents the sliding block from moving before die assembly, the die opening distance of the I-I parting surface is controlled by the distance pull rod 23, and the first die opening distance of the die design is forty millimeters. After reaching the first parting mold opening distance of forty millimeters, the movable mold part continues to move backwards under the action of the injection molding machine, after reaching a certain stroke, the button machine 3 is pulled open, because the adhesion force of the plastic part to the fixed mold insert 8 is far less than the wrapping force of the plastic part to the movable mold core 22, at the moment, the mold can be opened at the II-II parting surface, the second mold opening is realized, in order to ensure that the plastic part is taken out smoothly, the second mold opening distance is at least twice of the height of the plastic part and 10 millimeters, the requirement can be met, the mold opening distance is controlled by the injection molding machine, after the mold opening stroke is completed, the ejector pin push plate 5 and the push plate insert 6 of the injection molding machine, which are connected to the mold connecting post 25, the third mold opening is realized, simultaneously, the air valve 27 is pushed away by the release of high-pressure gas, the plastic part is pushed away from the movable mold core 22 together with the push plate 5 and the push plate insert 6, the push distance is controlled by the first small pull rod 4, and the mold completes one-time injection molding, after the pushing action is finished, the push plate 5 is pulled back to the original position under the action of the ejector rod of the injection molding machine, and the fixed die half block 11 is reset under the action of the bent pin 12.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (7)
1. The utility model provides a take cask spare injection mold of spiral groove, includes movable mould bedplate (1), its characterized in that: the top end of the movable mold base plate (1) is fixedly connected with a movable mold fixing plate (2), one side of the movable mold fixing plate (2) is fixedly connected with a button machine (3), the top end of the movable mold fixing plate (2) is fixedly connected with a push plate (5), the top end of the push plate (5) is fixedly connected with a fixed mold plate (7), one side of the push plate (5) is fixedly provided with a push plate insert (6), the inner side of the fixed mold plate (7) is fixedly connected with a fixed mold insert (8), the inner side of the fixed mold plate (7) is fixedly provided with a limit pin (10), the inner side of the fixed mold plate (7) is also provided with a first spring (9), the top end of the fixed mold plate (7) is fixedly connected with a bent pin fixing plate (13) through the limit pin (10), the inner side of the bent pin fixing plate (13) is slidably connected with a fixed mold half block (11), and the first spring (9) is installed in a hole on one side of the fixed mold half block (11), the inner part of the bent pin fixing plate (13) is fixedly connected with a bent pin (12), the top end of the bent pin fixing plate (13) is provided with a hot nozzle fixing plate (14), the top end of the hot nozzle fixing plate (14) is provided with a supporting plate (16), the top end of the supporting plate (16) is provided with a fixed die base plate (17), the inner side of the supporting plate (16) is provided with a hot runner plate (15), the top end of the hot runner plate (15) is fixedly connected with a positioning ring (31), the bottom end of the hot runner plate (15) is fixedly connected with a hot nozzle (20), the outer side of the hot nozzle (20) is sleeved with a fixed die core (21), the fixed die core (21) is positioned on the inner side of the bent pin fixing plate (13), the inner side of the fixed die insert (8) is provided with a die core (22), and the inner parts of one sides of the bent pin fixing plate (13) and the fixed die plate (7) are fixedly connected with a fixed distance pull rod (23), the bottom of distance pull rod (23) is through third screw (24) fixedly connected with spliced pole (25), the inside fixedly connected with second spring (28) of curved pin (12) and fixed die plate (7), spiral cooling water pipe (26) have been seted up to the inside of movable mould core (22), the inside of movable mould core (22) is provided with pneumatic valve (27).
2. The injection mold for barrel parts with helical grooves according to claim 1, wherein: the movable mould base plate (1) is connected with the movable mould fixing plate (2) through screws.
3. The injection mold for barrel parts with helical grooves according to claim 1, wherein: a second guide post (34) is further arranged among the fixed die plate (7), the push plate (5) and the movable die fixing plate (2), a second guide sleeve (32) and a third guide sleeve (33) are sleeved on the outer side of the second guide post (34), the second guide sleeve (32) is located inside the fixed die plate (7), and the third guide sleeve (33) is located inside the push plate (5).
4. The injection mold for barrel parts with helical grooves according to claim 1, wherein: the inner parts of the supporting plate (16), the hot nozzle fixing plate (14) and the bent pin fixing plate (13) are fixedly connected with a first guide column (30), and the outer side of the first guide column (30) is sleeved with a first guide sleeve (29).
5. The injection mold for barrel parts with helical grooves according to claim 1, wherein: the fixed die base plate (17) is internally fixed with a first screw (18) and a second screw (19), the fixed die base plate (17), the supporting plate (16), the hot nozzle fixing plate (14) and the bent pin fixing plate (13) are fixedly connected through the first screw (18), and the fixed die base plate (17), the supporting plate (16) and the hot nozzle fixing plate (14) are further connected through the second screw (19).
6. The injection mold for barrel parts with helical grooves according to claim 1, wherein: the fixed die half block (11) drives the bent pin and bent pin fixing plate (13) to move through the bent pin (12).
7. The injection mold for barrel parts with helical grooves according to claim 1, wherein: and an annular cooling water tank is arranged on the outer side of the fixed die insert (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111157773.7A CN113927839B (en) | 2021-09-30 | 2021-09-30 | A barrel injection mold with spiral groove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111157773.7A CN113927839B (en) | 2021-09-30 | 2021-09-30 | A barrel injection mold with spiral groove |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113927839A true CN113927839A (en) | 2022-01-14 |
| CN113927839B CN113927839B (en) | 2023-08-15 |
Family
ID=79277483
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111157773.7A Active CN113927839B (en) | 2021-09-30 | 2021-09-30 | A barrel injection mold with spiral groove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113927839B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0462112A (en) * | 1990-06-27 | 1992-02-27 | Sony Corp | Mold apparatus |
| JPH06246778A (en) * | 1993-02-26 | 1994-09-06 | Dainippon Printing Co Ltd | Method and apparatus for producing composite container |
| JPH08323823A (en) * | 1995-05-30 | 1996-12-10 | Taiho Kogyo Kk | Injection molding method and mold used therefor |
| JPH1058495A (en) * | 1996-08-13 | 1998-03-03 | Daiwa Can Co Ltd | Injection mold for synthetic resin cap |
| JP2002292697A (en) * | 2001-03-30 | 2002-10-09 | Yoshino Kogyosho Co Ltd | Injection molding method and injection mold used therein |
| WO2017088424A1 (en) * | 2015-11-25 | 2017-06-01 | 深圳市华腾精密机械有限公司 | Aluminium alloy injection moulding machine and injection moulding process |
| CN107984702A (en) * | 2017-12-06 | 2018-05-04 | 仇成杰 | Head casing injection mold and its application method |
| CN210116136U (en) * | 2019-06-25 | 2020-02-28 | 浙江台州美多模具有限公司 | Fixed-distance parting device of injection mold |
-
2021
- 2021-09-30 CN CN202111157773.7A patent/CN113927839B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0462112A (en) * | 1990-06-27 | 1992-02-27 | Sony Corp | Mold apparatus |
| JPH06246778A (en) * | 1993-02-26 | 1994-09-06 | Dainippon Printing Co Ltd | Method and apparatus for producing composite container |
| JPH08323823A (en) * | 1995-05-30 | 1996-12-10 | Taiho Kogyo Kk | Injection molding method and mold used therefor |
| JPH1058495A (en) * | 1996-08-13 | 1998-03-03 | Daiwa Can Co Ltd | Injection mold for synthetic resin cap |
| JP2002292697A (en) * | 2001-03-30 | 2002-10-09 | Yoshino Kogyosho Co Ltd | Injection molding method and injection mold used therein |
| WO2017088424A1 (en) * | 2015-11-25 | 2017-06-01 | 深圳市华腾精密机械有限公司 | Aluminium alloy injection moulding machine and injection moulding process |
| CN107984702A (en) * | 2017-12-06 | 2018-05-04 | 仇成杰 | Head casing injection mold and its application method |
| CN210116136U (en) * | 2019-06-25 | 2020-02-28 | 浙江台州美多模具有限公司 | Fixed-distance parting device of injection mold |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113927839B (en) | 2023-08-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206870293U (en) | Injection mold twice core pulling forced demoulding mechanism | |
| CN209775389U (en) | Die-casting device is used in production of entity plastic product | |
| CN208827009U (en) | A household trash can injection mold | |
| CN216992962U (en) | Medical injection molding mould convenient to drawing of patterns | |
| CN104441493A (en) | Bush injection mold | |
| CN107756733A (en) | A kind of plastic injection compression precise forming mold and technique | |
| CN113927839A (en) | A barrel injection mold with a spiral groove | |
| CN208020655U (en) | Side core-pulling injection mold with groove plastic | |
| CN211307207U (en) | Injection mold with multi-channel structure | |
| CN205148818U (en) | Device is expected with fixed attention to automatic cutout runner of many types of chamber of some runner list die joint mould | |
| CN204367306U (en) | Injection mould with liner bushing | |
| CN211492613U (en) | Connector housing injection mold | |
| CN110126173B (en) | Injection mold for large-thickness PE flange and forming method of PE flange | |
| CN221913040U (en) | Automobile gear production die convenient to demolding | |
| CN106738696A (en) | A kind of hot runner mould with rotation stripping mechanism | |
| CN221834782U (en) | Lining plastic mould ejection mechanism | |
| CN215242688U (en) | Precise injection mold of lightweight thin-wall automobile door panel assembly | |
| CN220242277U (en) | Mould for forming precise plastic gear | |
| CN220295797U (en) | Precoated sand pouring device | |
| CN219650501U (en) | Quick radiating injection mold | |
| CN220075395U (en) | Mould is used in production of insulating tube | |
| CN220280331U (en) | Precise die for water tank cover | |
| CN211221832U (en) | Injection mold is used in production and processing of plastics thing flow box | |
| CN222039589U (en) | Heat shrinkage tube expansion die with multiple cooling cavities | |
| CN222512000U (en) | A molding die for plastic products |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |