CN113927839B - Barrel part injection mold with spiral groove - Google Patents

Barrel part injection mold with spiral groove Download PDF

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Publication number
CN113927839B
CN113927839B CN202111157773.7A CN202111157773A CN113927839B CN 113927839 B CN113927839 B CN 113927839B CN 202111157773 A CN202111157773 A CN 202111157773A CN 113927839 B CN113927839 B CN 113927839B
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China
Prior art keywords
plate
fixed
fixedly connected
fixing plate
movable
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CN202111157773.7A
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Chinese (zh)
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CN113927839A (en
Inventor
陈元芳
屈亚龙
陈浩东
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Chongqing University of Technology
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Chongqing University of Technology
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Priority to CN202111157773.7A priority Critical patent/CN113927839B/en
Publication of CN113927839A publication Critical patent/CN113927839A/en
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Publication of CN113927839B publication Critical patent/CN113927839B/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/26Moulds
    • B29C45/2602Mould construction elements
    • B29C45/2606Guiding or centering means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/26Moulds
    • B29C45/27Sprue channels ; Runner channels or runner nozzles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/26Moulds
    • B29C45/33Moulds having transversely, e.g. radially, movable mould parts
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/40Removing or ejecting moulded articles
    • B29C45/44Removing or ejecting moulded articles for undercut articles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/72Heating or cooling
    • B29C45/73Heating or cooling of the mould
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10Greenhouse 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

Abstract

The invention discloses a barrel part injection mold with a spiral groove, and relates to the technical field of plastic molding molds. The invention comprises a movable die seat plate, wherein the top end of the movable die seat plate is fixedly connected with a movable die fixing plate, one side of the movable die fixing plate is fixedly connected with a buckling machine, the top end of the movable die fixing plate is fixedly connected with a push plate, the top end of the push plate is fixedly connected with a fixed die plate, and one side of the push plate is fixedly provided with a push plate insert. The invention achieves the design purpose of two parts of one mould through the structural design, adopts the hot injection nozzle to ensure smooth and quick melt filling, adopts the design of the fixed mould lateral half core-pulling mechanism to facilitate the completion of the forming of the spiral groove at the top of the plastic part, adopts the spiral water tank for cooling in the movable mould core, adopts the annular cooling water tank for the fixed mould core and the fixed mould insert, effectively shortens the molding cycle, and stably reduces the height of the mould through the structural design during injection molding production through the structural design.

Description

Barrel part injection mold with spiral groove
Technical Field
The invention relates to the technical field of plastic forming dies, in particular to a barrel part injection die with a spiral groove.
Background
The injection mold is used for molding thermoplastic plastic products, and the injection mold occupies larger specific gravity in the molding of the plastic products, however, the existing injection mold has the following problems when processing barrel parts:
1. the adopted nozzle mode is inconvenient to ensure smooth and rapid melt filling;
2. the forming of the spiral groove at the top of the plastic part is inconvenient 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 injection mold with a spiral groove, which solves the existing problems: the cooling time of the plastic part cannot be effectively shortened.
In order to achieve the above purpose, the present invention provides the following technical solutions: the barrel injection mold with the spiral groove comprises a movable mold seat plate, wherein the top end of the movable mold seat plate is fixedly connected with a movable mold fixing plate, one side of the movable mold fixing plate is fixedly connected with a buckling machine, the top end of the movable mold fixing plate is fixedly connected with a push plate, the top end of the push plate is fixedly connected with a fixed mold plate, one side of the push plate is fixedly provided with a push plate insert, the inner side of the fixed mold plate is fixedly connected with a fixed mold insert, the inner side of the fixed mold plate is fixedly provided with a limit nail, the inner side of the fixed mold plate is also provided with a first spring, a first spring is arranged in a hole on one side of a fixed mold half block, the top end of the fixed mold plate is fixedly connected with a bent pin fixing plate through the limit nail, the inner side of the bent pin fixing plate is slidably connected with the fixed mold half block, the inner part of the bent pin fixing plate is fixedly connected with a bent pin, the top end of the bent pin fixing plate is provided with a hot nozzle fixing plate, the top of the hot nozzle fixing plate is provided with a supporting plate, the top of the supporting plate is provided with a fixed die seat plate, the inner side of the supporting plate is provided with a hot runner plate, the top of the hot runner plate is fixedly connected with a positioning ring, the bottom of the hot runner plate is fixedly connected with a hot nozzle, the outer side of the hot nozzle is sleeved with a fixed die core, the fixed die core is positioned at the inner side of a bent pin fixing plate, the inner side of a fixed die insert is provided with a movable die core, the inside of the bent pin fixing plate and one side of the fixed die plate is fixedly connected with a fixed distance pull rod, the bottom of the fixed distance pull rod is fixedly connected with a third screw, the bottom of the fixed distance pull rod is fixedly connected with a connecting column through the third screw, the inside of the bent pin and the fixed die plate is fixedly connected with a second spring, the inside of the movable die core is provided with a spiral cooling water pipe, and an air valve is arranged in the movable mold core.
Preferably, the movable die base plate is connected with the movable die fixing plate through screws, and the die opening distance of the push plate is controlled by a small pull rod.
Preferably, a second guide post 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 post, 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 bent pin fixing plate are fixedly connected with a first guide pillar, and a first guide sleeve is sleeved on the outer side of the first guide pillar.
Preferably, the fixed die seat plate is internally fixed with a first screw and a second screw, the fixed die seat 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 seat plate, the supporting plate and the hot nozzle fixing plate are also connected through the second screw.
Preferably, the fixed die half block drives the bending pin fixing plate to move the bending pin fixing plate through the bending pin.
Preferably, an annular cooling water tank is arranged on the outer side of the fixed die insert.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, through the structural design, the design purpose of two parts of one die is achieved, and a hot nozzle is adopted to ensure smooth and rapid melt filling;
2. the invention is convenient for completing the forming of the spiral groove at the top of the plastic part by adopting the design of the fixed die lateral half core-pulling mechanism;
3. according to the invention, the spiral water tank is adopted for cooling in the movable mold core, and the fixed mold core and the fixed mold insert adopt the annular cooling water tank, so that the cooling time of the plastic part is effectively reduced;
4. according to the invention, the machine tool ejector rod 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 that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a side cross-sectional view of the entirety of a mold of the present invention;
FIG. 2 is a front cross-sectional view of the entirety of the inventive die;
FIG. 3 is a fixed pattern row bitmap of the present invention;
FIG. 4 is a movable matrix bitmap 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 retainer ring.
In the figure: 1. a movable die base plate; 2. a movable mold fixing plate; 3. a button machine; 4. a first small pull rod; 5. a push plate; 6. a push plate insert; 7. a stationary mold plate; 8. a fixed mold insert; 9. a first spring; 10. a limit nail; 11. a fixed die half block; 12. a bent pin; 13. a bent pin fixing plate; 14. a thermal nozzle fixing plate; 15. a hot runner plate; 16. a support plate; 17. a fixed die seat plate; 18. a first screw; 19. a second screw; 20. a thermal nozzle; 21. a fixed mold core; 22. a moving mold core; 23. distance pull rods; 24. a third screw; 25. a connecting column; 26. a spiral cooling water pipe; 27. an air valve; 28. a second spring; 29. the first guide sleeve; 30. a first guide post; 31. a positioning ring; 32. a second guide sleeve; 33. a third guide sleeve; 34. and a second guide post.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
Referring to fig. 1-6, a barrel injection mold with spiral grooves 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 buckle 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 push plate 5, a fixed mold plate 7 is fixedly connected to one side of the push plate 5, a push plate insert 6 is fixedly connected to the inner side of the fixed mold plate 7, a fixed limit nail 10 is fixedly connected 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 bent pin fixing plate 13 is fixedly connected to the top end of the fixed mold plate 7 through the fixed limit nail 10, a fixed mold 11 is slidingly 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, a hot nozzle fixing plate 14 is arranged on the top end of the fixed mold plate 14, a supporting plate 16 is arranged on the top end of the fixed mold plate 16, a fixed mold base plate 17 is fixedly connected to the inner side of the fixed mold plate 16, a fixed mold core plate 21 is fixedly connected to the bottom end of the fixed mold core plate 21 through a fixed mold core plate 21, a fixed mold core plate 21 is fixedly connected to the inner side of the fixed mold core plate 22, a fixed mold core plate 21 is fixedly connected to the fixed mold core plate 23, a fixed mold core plate 21 is fixedly connected to the bottom end of the fixed to the fixed mold core plate 20 through a fixed mold core plate 21, a fixed pin 21 is fixedly connected to the bent pin 21, a fixed to the bottom end of the fixed mold core plate 21 is fixedly connected to the inner side of the bent plate 21, and the fixed mold core plate 21 is connected to the inner side of the fixed mold core plate 21 through the fixed mold core plate 21, an air valve 27 is provided inside the movable mold core 22.
The movable die base plate 1 is connected with the movable die fixing plate 2 through screws;
a second guide post 34 is further arranged among the fixed die plate 7, the push plate 5 and the movable die fixed 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 in the fixed die plate 7, and the third guide sleeve 33 is positioned in the push plate 5;
the supporting plate 16, the hot nozzle fixing plate 14 and the bent pin fixing plate 13 are fixedly connected with a first guide post 30, and a first guide sleeve 29 is sleeved on the outer side of the first guide post 30;
the fixed die seat plate 17 is internally fixed with a first screw 18 and a second screw 19, the fixed die seat 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 seat plate 17, the supporting plate 16 and the hot nozzle fixing plate 14 are also connected through the second screw 19;
the fixed die half block 11 drives the 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 die insert 8.
The device is applied to injection of the barrel part made of PP materials;
through the cooperation design of the hot nozzle fixing plate 14, the hot runner plate 15 and the hot nozzle 20, an integral hot runner pouring system with two hot nozzles and fixed positions is formed, compared with a common pouring system, the hot runner pouring system is a one-door technology of a thermoplastic plastic injection mold, and the hot runner pouring system has the advantages of simplifying the mold structure, shortening the molding cycle, stabilizing the change of the temperature of a melt, saving raw materials, improving the quality of products, 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 thermal nozzle expands thermally. The bulging size of the hot nozzle of the die set is as follows:
the calculation formula of the thermal expansion size of the thermal nozzle and the specific numerical values of the thermal expansion size of the thermal nozzle in this embodiment are as follows:
wherein, the expansion length is estimated by all the thermal nozzles for 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 heating and expansion, is as follows: mm;
temperature difference of melt temperature minus die temperature, unit: the temperature is lower than the temperature;
the expansion coefficient of the material used for the thermal nozzle is generally taken;
the dimensions of the retainer ring 31 are 100×34×12;
the fixed die insert 8 adopts a circular structure, so that the insert is convenient to process and cool, and meanwhile, the coaxiality of the inner cylinder and the outer cylinder of the plastic part is required to be ensured when the fixed die insert is designed into the circular structure;
the fixed die half block 11 is provided with four blocks in the set of die, so that lateral core pulling is facilitated, the front end of the fixed die half block 11 is designed in size along with 1/2 of the top end part of the plastic part, and the whole die half block is in an irregular rectangular T-shaped plate shape;
the main working part of the fixed mold core 21 of the barrel mold is the contact part with the plastic part, and the top of the barrel part is round, so that the working part of the fixed mold core 21 is round, the fixed mold core 21 and the bent pin fixing plate 13 are fastened by adopting screws, and meanwhile, an annular cooling water channel is arranged around the fixed mold core 21, so that the parts of the fixed mold core 21 except the fastening part are also round, thereby being convenient for processing and installing the water channel;
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 die insert 8 to form a circular ring bulge, so that the push away of the plastic part and the forming of the edge of the plastic part are facilitated;
according to structural analysis of the barrel part, the movable mold core 22 of the barrel part is provided with only one large mold core required by the deep cavity on the inner surface of the barrel part, the large mold core is arranged at the movable mold part of the mold because of the large packing force of the formed barrel part, the fastening part at the bottom of the movable mold core 22 is designed to be round for convenient processing, the part, carried by the movable mold core 22, of the push plate and the plastic part is designed to be a round table shape gradually approaching to the round size of the top of the plastic part in combination with the shape of the plastic part, and meanwhile, the inside of the movable mold core 22 is provided with a hole upwards, so that the arrangement of the spiral cooling water pipe 26 and the installation of the pneumatic pushing device pipeline are completed by matching with the air valve 27;
the top groove of the barrel part adopts a lateral core pulling structure, a fixed die half block 11 is used for core pulling, the fixed die half block 11 is controlled through a bent pin 12 in the core pulling process, resetting and locking are carried out, the fixed die half block 11 is positioned by a first spring 9 and a limit nail 10 after a die is opened, a T-shaped groove of the fixed die half block 11 and a fixed die plate 7 are positioned in the die closing process, and as the back-off of the top of the barrel part is annular, the minimum core pulling distance of the fixed die half block 11 is not directly equal to the depth of the back-off, and the minimum core pulling distance is calculated by a drawing method, and the detailed process is as follows: the drawing method can obtain the minimum core pulling distance of the barrel part of 7mm and the required safety distance of 3mm, so that the core pulling distance of the fixed die half block 11 is 10mm of the limiting nail, and the requirement of the core pulling distance can be met because of the large thickness of the bent pin sliding block;
in the embodiment, the demolding adopts a mode of pushing out a push plate and pushing out a plastic part by combining pneumatic demolding, wherein the pneumatic demolding is suitable for pushing out a deep cavity, a thin wall or soft plastic, the formed barrel plastic part is a deep cavity and is thin wall, and the pneumatic demolding is matched with the pneumatic demolding, so that the pneumatic pushing of the demolding is completed by injecting air inwards through an air valve 27;
pushing out the pushing plate of the set of dies by pushing the pushing plate by an injection molding machine top rod connected to the die connecting column 25, and matching with pneumatic pushing out to jointly complete the pushing out process of the plastic part, and simultaneously, pulling the pushing plate back to the original position under the action of the injection molding machine top rod after the die is subjected to one-time injection molding to complete the die 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 cooling of the film body is completed by injecting the normal-temperature water into the spiral cooling water pipe 26 and the cooling circulation tank;
the positioning ring 31 is matched with the injection molding machine, the joint positioning is carried out in the mold through the matching among 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, 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 needs;
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 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 be in transition fit, so that absolute tightness is ensured, disassembly is not carried out frequently, and concentricity is good;
the hot nozzle 20 is connected with the opening part of the lower end of the positioning ring 31 in the selected open hot runner pouring system, the upper end of the positioning ring 31 is connected with the injection molding machine, the runner diameter of the hot nozzle 20 is 7mm, the top of the positioning ring 31 is connected with the runner opening of the injection molding machine, and the runner system realizes two-point glue feeding of the mold through the hot runner plate 15;
the specific embodiment is as follows:
after PP plastic is sheared and melted by an injection molding machine, the plastic melt enters a hot runner plate 15 of the hot runner pouring system to split two cavities, the plastic melt enters a mold cavity through a runner in the hot runner plate 15, after injection is completed and a barrel part is molded, a movable mold part of the mold is pulled by an injection molding movable mold plate to move, under the action of a button machine 3, a fixed mold plate 7, a push plate 5 and a movable mold fixing plate 2 are fastened, the button machine 3 is matched and installed to act together with a second spring 28, so that the mold is opened from an I-I parting surface at first, at the moment, a bending pin 12 toggles a fixed mold half block 11 to finish side core pulling of the fixed mold, the core pulling distance is controlled by a limit pin 10 and the bending pin 12, a first spring 9 prevents the sliding block from moving before mold closing, and the mold opening distance of the I-I parting surface is controlled by a distance pull rod 23, and the first mold opening distance of the mold design is forty millimeters. After the first parting die opening distance of forty millimeters is reached, the movable die part continues to move backwards under the action of the injection molding machine, after a certain stroke is reached, the buckling machine 3 is pulled away, as the adhesion force of the plastic part to the fixed die insert 8 is far smaller than the packing force of the plastic part to the movable die core 22, the die can be opened at the parting plane II-II at the moment, the second die opening is realized, in order to ensure that the plastic part is smoothly taken out, the second die opening distance is at least twice the height of the plastic part and 10 millimeters, the requirement can be met, the die opening distance is controlled by the injection molding machine, after the die opening stroke is completed, the push rod push plate 5 and the push plate insert 6 of the injection molding machine connected to the die connecting column 25 realize the third die opening, meanwhile, the push plate 5 and the push plate insert 6 push away the plastic part from the movable die core 22 together, the push distance is controlled by the first small pull rod 4, after the die is completed by the first injection molding, the push plate 5 is pulled back to the original place under the action of the injection molding machine, and the fixed die half block 11 resets under the action of the bending 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 characteristics 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 (1)

1. The utility model provides a take spiral groove's cask spare injection mold, includes movable mould bedplate (1), its characterized in that: the top of movable mould bedplate (1) fixedly connected with movable mould fixed plate (2), one side fixedly connected with sear (3) of movable mould fixed plate (2), the top fixedly connected with push pedal (5) of movable mould fixed plate (2), the top fixedly connected with fixed mould board (7) of push pedal (5), one side of push pedal (5) is fixed with push pedal mold insert (6), the inboard fixedly connected with fixed mould mold insert (8) of fixed mould board (7), fixed mould plate (7) inboard is fixed with spacing nail (10), fixed mould plate (7) inboard still is provided with first spring (9), the top of the fixed die plate (7) is fixedly connected with a bent pin fixing plate (13) through a limit nail (10), the inner side of the bent pin fixing plate (13) is slidably connected with a fixed die half block (11), a first spring (9) is arranged in a hole on one side of the fixed die half block (11), the inside of the bent pin fixing plate (13) is fixedly connected with a bent pin (12), the top of the bent pin fixing plate (13) is provided with a hot nozzle fixing plate (14), the top of the hot nozzle fixing plate (14) is provided with a supporting plate (16), the top of the supporting plate (16) is provided with a fixed die seat plate (17), the inner side of the supporting plate (16) is provided with a hot runner plate (15), the hot runner system is characterized in that a positioning ring (31) is fixedly connected to the top end of the hot runner plate (15), a hot nozzle (20) is fixedly connected to the bottom end of the hot runner plate (15), a fixed mold core (21) is sleeved on the outer side of the hot nozzle (20), the fixed mold core (21) is positioned on the inner side of a bent pin fixing plate (13), a movable mold core (22) is arranged on the inner side of a fixed mold insert (8), a distance pull rod (23) is fixedly connected to the inner sides of the bent pin fixing plate (13) and one side of the fixed mold plate (7), a connecting column (25) is fixedly connected to the bottom end of the distance pull rod (23) through a third screw (24), a second spring (28) is fixedly connected to the inner sides of the bent pin (12) and the fixed mold plate (7), a spiral cooling water pipe (26) is arranged in the movable mold core (22), and an air valve (27) is arranged in the movable mold core (22);
the movable die base plate (1) is connected with the movable die fixing plate (2) through screws;
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 in the fixed die plate (7), and the third guide sleeve (33) is positioned in 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 pillar (30), and a first guide sleeve (29) is sleeved on the outer side of the first guide pillar (30);
the fixed die seat plate (17) is internally fixed with a first screw (18) and a second screw (19), the fixed die seat 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 seat plate (17), the supporting plate (16) and the hot nozzle fixing plate (14) are also connected through the second screw (19);
the fixed die half block (11) drives a bending pin and bending pin fixing plate (13) to move through a bending pin (12);
an annular cooling water tank is arranged on the outer side of the fixed die insert (8).
CN202111157773.7A 2021-09-30 2021-09-30 Barrel part injection mold with spiral groove Active CN113927839B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111157773.7A CN113927839B (en) 2021-09-30 2021-09-30 Barrel part 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 Barrel part injection mold with spiral groove

Publications (2)

Publication Number Publication Date
CN113927839A CN113927839A (en) 2022-01-14
CN113927839B true CN113927839B (en) 2023-08-15

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