CN217968332U

CN217968332U - Injection molding machine

Info

Publication number: CN217968332U
Application number: CN202221497315.8U
Authority: CN
Inventors: 徐建辉; 苏灿武; 许雪丰
Original assignee: Cixi Haofeng Mould Technology Co ltd
Current assignee: Cixi Haofeng Mould Technology Co ltd
Priority date: 2022-06-15
Filing date: 2022-06-15
Publication date: 2022-12-06
Anticipated expiration: 2032-06-15

Abstract

The utility model relates to an injection molding machine, the on-line screen storage device comprises a base, base top bilateral symmetry fixed mounting has motor case and baffle, the compounding bucket is installed to motor case output shell, compounding bucket top lateral wall switches on and installs the feed tank, compounding bucket tip switches on and installs the heating shell, the inside rotation of heating shell installs the screw propulsion pole, the heating shell outside switches on and installs the heat pipe, base top just is located heating shell tip injection nozzle department fixed mounting and has a fixed mould, when the mould is moved to the left after the cooling of plastic products takes shape in the mould, the film blowing mechanism receives the compression, and the one-way pneumatic valve on the left of the film blowing mechanism seals this moment, and the one-way pneumatic valve on the right of film blowing mechanism is opened this moment, and the air in the compression gasbag is pushed and gets into and removes the mould to the plastic products that will take shape are separated with the mould blowing, have realized the effect that plastic products and mould separated.

Description

Injection molding machine

Technical Field

The utility model relates to a plastics processing technology field especially relates to an injection molding machine.

Background

An injection molding machine is also known as an injection molding machine or an injection machine, and is main molding equipment for manufacturing thermoplastic plastics or thermosetting materials into plastic products with various shapes by using a plastic molding die.

The existing demoulding method is characterized in that the ejector pin is used for pushing the injection molding part to be separated, but other parts of the injection molding part can be adhered to the male die and the base when the ejector pin is used for pushing, so that the injection molding part is damaged if the ejector pin is forced to push, and the product is easily damaged. Therefore, we propose an injection molding machine.

SUMMERY OF THE UTILITY MODEL

The utility model provides an injection molding machine, it is difficult to the drawing of patterns to solve behind the plastic products injection moulding, and very easily damaged at drawing of patterns in-process.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides an injection molding machine, includes the base, base top bilateral symmetry fixed mounting has motor case and baffle, the compounding bucket is installed to motor case output shell, compounding bucket top lateral wall switches on and installs the feed bucket, compounding bucket tip switches on and installs the heating shell, the inside rotation of heating shell installs the screw propulsion pole, the heating shell outside switches on and installs the heat pipe, base top just is located heating shell tip injection nozzle department fixed mounting and has fixed mould, slidable mounting has the removal mould between fixed mould and the baffle, fixed mounting has the blown film mechanism between baffle and the removal mould.

Preferably, four corners fixed mounting has the slide bar between fixed mould and the baffle, the slide opening has been seted up at the removal mould four corners, the slide bar runs through the slide opening.

Preferably, the film blowing mechanism comprises a compression air bag, a fixed cylinder and one-way air valves, the two ends of the compression air bag are respectively provided with the fixed cylinder in a conducting manner, the side ends of the fixed cylinders on the two sides are respectively and fixedly provided with the one-way air valves, and the two one-way air valves on the two sides are respectively and unidirectionally arranged.

Preferably, one-way air valve includes bell mouth, circular cavity, spacing chamber, air duct, first spacing ring, second spacing ring, spring, toper valve inside and air vent, the bell mouth has been seted up to one-way air valve bottom, circular cavity has been seted up at one-way air valve middle part, spacing chamber is seted up at the top, bell mouth, circular cavity and spacing chamber middle part are run through and are installed the air duct, air duct top fixed mounting has first spacing ring, air duct middle part fixed mounting has the second spacing ring, second spacing ring bottom fixed mounting has the spring, the air duct bottom switches on and installs the toper valve inside, the oblique lateral wall of toper valve inside switches on and has seted up the air vent.

Preferably, the first limiting ring is located inside the limiting cavity, and the first limiting ring is limited to move in the limiting cavity.

Preferably, the second limiting ring is located inside the circular cavity, the second limiting ring is limited in the circular cavity to move, the top end of the spring is fixedly connected with the second limiting ring, and the bottom end of the spring is fixedly connected with the bottom of the circular cavity.

The beneficial effects of the utility model are that: firstly, a slide rod is fixedly installed between a baffle and a fixed mold, a movable mold slides on the slide rod, when the movable mold moves rightwards, a film blowing mechanism starts to stretch, a one-way air valve on the left side of the film blowing mechanism sucks air, the one-way air valve on the right side of the film blowing mechanism is in a closed state, the movable mold and the fixed mold are overlapped, a threaded push rod injects molten plastic into the mold, and the plastic in the mold is waited to be cooled and formed, so that the injection molding effect is realized;

when the movable mold moves leftwards after plastic products in the mold are cooled and formed, the film blowing mechanism is compressed, the one-way air valve on the left side of the film blowing mechanism is closed, the one-way air valve on the right side of the film blowing mechanism is opened, air in the compressed air bag is extruded into the movable mold, the formed plastic products are blown and separated from the mold, and the effect of separating the plastic products from the mold is achieved.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the movable mold of the present invention;

FIG. 3 is a schematic view of the installation of the screw propulsion rod of the present invention;

FIG. 4 is a schematic structural view of the film blowing mechanism of the present invention;

fig. 5 is the schematic view of the one-way air valve of the present invention.

Illustration of the drawings:

1. a base; 2. a motor case; 3. a mixing barrel; 4. a charging barrel; 5. heating the shell; 6. a threaded pusher rod; 7. a heat conducting pipe; 8. fixing the mold; 9. a baffle plate; 10. a slide bar; 11. moving the mold; 12. a film blowing mechanism; 13. compressing the air bag; 14. a fixed cylinder; 15. a one-way air valve; 16. a tapered groove; 17. a circular cavity; 18. a limiting cavity; 19. an air duct; 20. a first limit ring; 21. a second stop collar; 22. a spring; 23. a conical valve core; 24. and (4) a vent hole.

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 of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Specific examples are given below.

Referring to fig. 1 to 5, an injection molding machine comprises a base 1, wherein motor boxes 2 and baffle plates 9 are symmetrically and fixedly installed on two sides of the top end of the base 1, a mixing barrel 3 is installed on an outer shell of an output end of the motor boxes 2, a feeding barrel 4 is installed on a side wall of the top of the mixing barrel 3 in a conduction manner, a heating shell 5 is installed on the end portion of the mixing barrel 3 in a conduction manner, a threaded push rod 6 is rotatably installed inside the heating shell 5, a heat conduction pipe 7 is installed on the outer side of the heating shell 5 in a conduction manner, a fixed mold 8 is fixedly installed at an injection nozzle at the top end of the base 1 and located at the end portion of the heating shell 5, a movable mold 11 is installed between the fixed mold 8 and the baffle plates 9 in a sliding manner, and a film blowing mechanism 12 is fixedly installed between the baffle plates 9 and the movable mold 11; slide bars 10 are fixedly mounted at four corners between the fixed mold 8 and the baffle 9, slide holes are formed at four corners of the movable mold 11, and the slide bars 10 penetrate through the slide holes, so that the movable mold 11 and the fixed mold 8 are subjected to coincident injection molding and separated demolding; the film blowing mechanism 12 comprises a compression air bag 13, a fixed cylinder 14 and one-way air valves 15, the two ends of the compression air bag 13 are respectively provided with the fixed cylinder 14 in a conducting way, the side ends of the fixed cylinders 14 at the two sides are respectively provided with the one-way air valves 15, and the one-way air valves 15 at the two sides are respectively arranged in the same direction, so that the effects of shrinkage, air blowing and stretching air suction of the film blowing mechanism 12 are realized; the one-way air valve 15 comprises a conical groove 16, a circular cavity 17, a limiting cavity 18, an air guide tube 19, a first limiting ring 20, a second limiting ring 21, a spring 22, a conical valve core 23 and a vent hole 24, the conical groove 16 is formed in the bottom of the one-way air valve 15, the circular cavity 17 is formed in the middle of the one-way air valve 15, the limiting cavity 18 is formed in the top of the one-way air valve 15, the air guide tube 19 is installed in the middle of the conical groove 16, the circular cavity 17 and the limiting cavity 18 in a penetrating mode, the first limiting ring 20 is fixedly installed at the top end of the air guide tube 19, the second limiting ring 21 is fixedly installed in the middle of the air guide tube 19, the spring 22 is fixedly installed at the bottom of the second limiting ring 21, the conical valve core 23 is installed at the bottom end of the air guide tube 19 in a conducting mode, the vent hole 24 is formed in a conducting mode on the inclined side wall of the conical valve core 23, and therefore the effect that air enters the head portion from the tail portion to be closed when the film blowing mechanism 12 is stretched and air is blown into the moving mold 11 from the head portion to be compressed is achieved; the first limiting ring 20 is positioned in the limiting cavity 18, the first limiting ring 20 is limited in the limiting cavity 18 to move, and the limit of the moving space of the air duct 19 is realized; inside second spacing ring 21 was located circular cavity 17, second spacing ring 21 was injectd and is removed in circular cavity 17, spring 22 top and second spacing ring 21 fixed connection, spring 22 bottom and circular cavity 17 bottom fixed connection have realized that air duct 19 removes the effect that resets.

The working principle is as follows: firstly, plastic particle mixture is added into a feeding barrel 4, the plastic can enter a mixing barrel 3 to be stirred and fully mixed, under the drive of a motor box 2, a screw thread pushing rod 6 rotates and pushes the plastic mixture to move leftwards, the plastic mixture moves and simultaneously a heating shell 5 gradually heats the mixture until the plastic mixture is heated into a molten state and is injected into a cavity between a fixed die 8 and a movable die 11 from an injection nozzle, after the molten plastic is cooled in the die, the movable die 11 slides leftwards on a sliding rod 10, a film blowing mechanism 12 between a baffle plate 9 and the movable die 11 is compressed, air in a compressed air bag 13 is extruded, a one-way air valve 15 on the left side of the film blowing mechanism 12 is closed, a second limiting ring 21 in the one-way air valve 15 on the right side of the film blowing mechanism 12 is forced to move rightwards under the action of pressure, a conical valve core 23 is separated from the inner wall of a conical groove 16 at the moment, a vent hole 24 on the conical valve core 23 is not blocked, air in the compressed air bag 13 enters and is blown into the movable die 11 from the conical groove 16 by an air duct 19, and the formed plastic product is blown out of the die 11;

when the movable mold 11 moves rightwards and coincides with the fixed mold 8, the film blowing mechanism 12 is opened and stretched, the internal space of the compression air bag 13 is expanded, the one-way air valve 15 on the right side of the film blowing mechanism 12 is closed, the one-way air valve 15 on the right side of the film blowing mechanism 12 is opened to suck air, and the compression air bag 13 is filled with air again, so that the preparation of the next blow molding operation is realized.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides an injection molding machine, its characterized in that, includes base (1), base (1) top bilateral symmetry fixed mounting has motor case (2) and baffle (9), motor case (2) output shell installs compounding bucket (3), compounding bucket (3) top lateral wall switches on and installs feed bucket (4), compounding bucket (3) tip switches on and installs heating shell (5), heating shell (5) internal rotation installs screw propulsion pole (6), heating shell (5) outside switches on and installs heat pipe (7), base (1) top just is located heating shell (5) tip injection nozzle department fixed mounting and has fixed mould (8), slidable mounting has between fixed mould (8) and baffle (9) and removes mould (11), fixed mounting has blown film mechanism (12) between baffle (9) and removal mould (11).

2. An injection molding machine according to claim 1, wherein slide bars (10) are fixedly installed at four corners between the fixed mold (8) and the baffle (9), slide holes are opened at four corners of the movable mold (11), and the slide bars (10) penetrate through the slide holes.

3. The injection molding machine according to claim 1, wherein the film blowing mechanism (12) comprises a compression air bag (13), a fixed cylinder (14) and one-way air valves (15), the two ends of the compression air bag (13) are respectively provided with the fixed cylinder (14) in a conduction mode, the side ends of the fixed cylinders (14) at the two sides are respectively provided with the one-way air valves (15) in a fixed mode, and the one-way air valves (15) at the two sides are respectively arranged in the same direction.

4. An injection molding machine according to claim 3, wherein the one-way air valve (15) comprises a tapered groove (16), a circular cavity (17), a limiting cavity (18), an air duct (19), a first limiting ring (20), a second limiting ring (21), a spring (22), a tapered valve core (23) and an air vent (24), the tapered groove (16) is formed in the bottom of the one-way air valve (15), the circular cavity (17) is formed in the middle of the one-way air valve (15), the limiting cavity (18) is formed in the top, the air duct (19) is formed in the middle of the tapered groove (16), the circular cavity (17) and the limiting cavity (18) and penetrates through the air duct (19), the first limiting ring (20) is fixedly mounted at the top end of the air duct (19), the second limiting ring (21) is fixedly mounted in the middle of the air duct (19), the spring (22) is fixedly mounted at the bottom of the second limiting ring (21), the tapered valve core (23) is mounted at the bottom end of the air duct (19), and the tapered valve core (23) is provided with the inclined side wall in a conductive manner with the air vent (24).

5. An injection molding machine according to claim 4, wherein the first stop collar (20) is located inside the stop cavity (18), the first stop collar (20) being confined for movement within the stop cavity (18).

6. An injection molding machine according to claim 4, wherein the second retainer ring (21) is located inside the circular cavity (17), the second retainer ring (21) is confined in the circular cavity (17) for movement, the top end of the spring (22) is fixedly connected to the second retainer ring (21), and the bottom end of the spring (22) is fixedly connected to the bottom of the circular cavity (17).