CN210759042U

CN210759042U - Injection molding machine for plastic processing

Info

Publication number: CN210759042U
Application number: CN201921528632.XU
Authority: CN
Inventors: 李胜华
Original assignee: Hangzhou Yatai Packaging Container Co Ltd
Current assignee: Hangzhou Yatai Packaging Container Co Ltd
Priority date: 2019-09-16
Filing date: 2019-09-16
Publication date: 2020-06-16
Anticipated expiration: 2029-09-16

Abstract

The utility model discloses an injection molding machine for plastic processing, which comprises a bottom plate and an injection molding unit, wherein the upper surface of the bottom plate is provided with a first support, the middle cambered surface of the first support is provided with a plasticizing cylinder, the right end of the plasticizing cylinder is provided with a feeding unit, the injection molding unit comprises an injection molding cylinder, a piston and a threaded rod, the two injection molding cylinders are symmetrically arranged on the upper surfaces of the front end and the rear end of the first support, the outer surface of the piston is in sliding connection with the inner surface of the injection molding cylinder, the right end of the piston is provided with a cavity, the threaded rod is in threaded connection with a central hole arranged on the right side surface of the piston, the right end of the threaded rod passes through a through hole arranged in the center of the right side surface of the injection molding cylinder, the outer cambered surface of the threaded rod is fixedly connected with a bearing inner ring arranged on the right side surface of the, the working efficiency is high.

Description

Injection molding machine for plastic processing

Technical Field

The utility model relates to an injection molding machine technical field specifically is an injection molding machine for plastics processing.

Background

An injection moulding machine, also known as an injection moulding machine or an injection machine, is a main moulding device for making thermoplastic plastics or thermosetting plastics into plastic products with various shapes by using a plastic moulding mould, the common injection moulding machine is used for placing the plastics into a material cylinder for heating and conveying the plastics by extruding a screw rod, and then injecting the plastics into the mould through a nozzle for moulding, the existing injection moulding machine forwards the screw rod through a piston for injection, after the injection is completed, the piston pulls the screw rod to return for re-filling, the working flow is long, the time consumption is high, the utilization rate of the equipment is low, in addition, the existing injection moulding machine directly adds the plastics into the material cylinder, the heating melting speed is low, and the working efficiency is low.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome current defect, provide an injection molding machine for plastic processing, the work flow is short, save time, and rate of equipment utilization is high, in addition, smashes the back with plastics and adds inside the feed cylinder, and the heating and melting is fast, and work efficiency is high, can effectively solve the problem in the background art.

In order to achieve the above object, the utility model provides a following technical scheme: an injection molding machine for plastic processing comprises a bottom plate and an injection molding unit;

a bottom plate: the upper surface of the bottom plate is provided with a first support, the middle cambered surface of the first support is provided with a plasticizing cylinder, and the right end of the plasticizing cylinder is provided with a feeding unit;

an injection molding unit: the injection molding unit comprises two injection molding cylinders, a piston and a threaded rod, the two injection molding cylinders are symmetrically arranged on the upper surfaces of the front end and the rear end of the first support, the outer surface of the piston is in sliding connection with the inner surface of the injection molding cylinder, the right end of the piston is provided with a cavity, the threaded rod is in threaded connection with a central hole arranged on the right side surface of the piston, the right end of the threaded rod penetrates through a through hole arranged in the center of the right side surface of the injection molding cylinder, and the outer cambered surface of the threaded rod is fixedly connected with a bearing inner;

wherein: the injection molding machine is characterized by further comprising a control switch group, wherein the control switch group is arranged on the upper surface of the bottom plate, the input end of the control switch group is electrically connected with an external power supply, and the inside of the left end of the plasticizing cylinder is communicated with the inside of the left end of the injection molding cylinder through a conveying pipe. The plasticizing cylinder heats and extrudes plastic, plastic particles are melted, the melted plastic is pressed into the injection molding cylinder through a pipeline between the plasticizing cylinder and the injection molding cylinder, the injection molding cylinder utilizes the thrust of a piston to inject the melted plastic into a mold, the left injection molding cylinder injects the plastic into the right injection molding cylinder through the pipeline, the screw rod injects the plastic in the plasticizing cylinder into the right injection molding cylinder through the pipeline, the piston on the right injection molding cylinder returns at the left side, the piston on the right side is pushed forward to inject the plastic, the operation is repeated in sequence, the screw rod can be guaranteed to be always in a rotary working state in the plasticizing cylinder, the stop waiting in the injection molding process is avoided, and the working efficiency of the equipment.

Further, the feeding unit comprises a feeding hopper, a spiral plate, a crushing cutter and a third motor, the feeding hopper is arranged at the right end of the plasticizing cylinder, the third motor is arranged on the upper surface of an upper cover of the feeding hopper, an output shaft of the third motor penetrates through a through hole arranged on the upper cover of the feeding hopper, an outer arc surface of an output shaft of the third motor is fixedly connected with a bearing arranged at the through hole of the upper cover of the feeding hopper, the spiral plate and the crushing cutter are arranged on an outer arc surface of an output shaft of the third motor, an outer edge of the spiral plate and one end, far away from the output shaft of the third motor, of the crushing cutter are arranged in a matching way corresponding to the arc surface of the feeding hopper, the spiral plate is arranged at the lower end of the crushing cutter, an input end of the third motor is electrically connected with an output end of a control switch group, after plastic particles are added into the feeding hopper, the control switch group controls the, utilize the flight to impress plastics and heat in the plastify section of thick bamboo, smash plastics, be favorable to heating in the plastify section of thick bamboo, shortened the time of plastify, the flight prevents that kibbling plastics from blockking up the feed opening.

Further, still include second motor and screw rod, the second motor sets up in the right-hand member side of a plastify section of thick bamboo, and the right-hand member side of a plastify section of thick bamboo is passed to the output shaft left end of second motor, and the right-hand member of screw rod passes through the output shaft left end fixed connection of shaft coupling and second motor, and the flight outer edge of screw rod sets up with the interior surface fit of a plastify section of thick bamboo, and the output of control switch group is connected to the input electricity of second motor, and the second motor drives the screw rod rotation and plays plastify and transport's effect to plastics.

Further, still include first motor, first belt pulley, belt and second belt pulley, first motor is two and the symmetry sets up in the upper surface right-hand member of base, and first belt pulley sets up in the output shaft of first motor, and the second belt pulley sets up in the right-hand member of threaded rod, and the extrados of first belt pulley and second belt pulley all is connected with the internal surface friction of belt, and the output of control switch group is connected to the input electricity of first motor.

Further, still include second support and mould, the second support sets up in the left end of bottom plate, and the mould sets up in the upper surface of second support, and the mould is two and corresponds the setting with a section of thick bamboo of moulding plastics, and two sections of thick bamboo of moulding plastics of mould cooperation are moulded plastics.

Compared with the prior art, the beneficial effects of the utility model are that: the injection molding machine for plastic processing has the following advantages:

1. in the injection molding process of the left injection molding cylinder, the plastic in the plasticizing cylinder is injected into the right injection molding cylinder through the pipeline by the screw, after the piston of the left injection molding cylinder returns, the right piston is pushed forward to perform injection molding, and the steps are repeated in sequence, so that the screw is always in a rotary working state in the plasticizing cylinder, the waiting time of the screw in the injection molding process is shortened, and the equipment utilization rate is improved.

2. The control switch group controls the third motor to rotate positively, the output shaft of the third motor drives the crushing cutter to rotate to crush plastic particles, the control switch group controls the third motor to rotate reversely after crushing is completed, plastic is pressed into the plasticizing cylinder by utilizing the spiral effect of the spiral piece to crush the plastic, heating in the plasticizing cylinder is facilitated, the plasticizing time is shortened, and the spiral piece prevents the crushed plastic from blocking the feed opening.

Drawings

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

FIG. 2 is a schematic sectional plan view of the present invention;

fig. 3 is a schematic side sectional view of the present invention.

In the figure: the device comprises a base plate 1, a control switch group 2, a first support 3, a second support 4, a mold 5, an injection molding unit 6, an injection molding cylinder 601, a piston 602, a threaded rod 603, a feeding unit 7, a feeding hopper 701, a spiral blade 702, a crushing cutter 703, a third motor 704, a plasticizing cylinder 8, a second motor 9, a first motor 10, a first belt pulley 11, a belt 12, a second belt pulley 13 and a screw 14.

Detailed Description

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

Referring to fig. 1-3, the present invention provides a technical solution: an injection molding machine for plastic processing comprises a bottom plate 1 and an injection molding unit 6;

bottom plate 1: the upper surface of the bottom plate 1 is provided with a first support 3, the middle arc surface of the first support 3 is provided with a plasticizing cylinder 8, the right end of the plasticizing cylinder 8 is provided with a feeding unit 7, the feeding unit 7 comprises a feeding hopper 701, a spiral blade 702, a crushing blade 703 and a third motor 704, the feeding hopper 701 is arranged at the right end of the plasticizing cylinder 8, the third motor 704 is arranged on the upper surface of an upper cover of the feeding hopper 701, an output shaft of the third motor 704 passes through a through hole arranged on the upper cover of the feeding hopper 701, the outer arc surface of the output shaft of the third motor 704 is fixedly connected with a bearing arranged at the through hole of the upper cover of the feeding hopper 701, the spiral blade 702 and the crushing blade 703 are both arranged on the outer arc surface of the output shaft of the third motor 704, the outer edge of the spiral blade 702 and one end of the output shaft of the crushing blade, which is far away from the third motor 704, are both matched with the arc surface of the feeding, the control switch group 2 controls the third motor 704 to rotate positively, the crushing cutter 703 is used for crushing plastic particles, the third motor 704 rotates positively after crushing is completed, the spiral piece 702 is used for pressing the plastic into the plasticizing cylinder 8 for heating, the plastic is crushed, heating in the plasticizing cylinder 8 is facilitated, plasticizing time is shortened, and the spiral piece 702 prevents the crushed plastic from blocking a feed opening.

And an injection molding unit 6: the injection unit 6 comprises two injection cylinders 601, a piston 602 and a threaded rod 603, the two injection cylinders 601 are symmetrically arranged on the upper surfaces of the front and rear ends of the first support 3, the outer surface of the piston 602 is connected with the inner surface of the injection cylinder 601 in a sliding manner, the right end of the piston 602 is provided with a cavity, the threaded rod 603 is in threaded connection with a central hole arranged on the right side surface of the piston 602, the right end of the threaded rod 603 passes through a through hole arranged in the center of the right side surface of the injection cylinder 601, the outer cambered surface of the threaded rod 603 is fixedly connected with a bearing inner ring arranged on the, when one injection molding cylinder 601 is used for injection molding, the other injection molding cylinder 601 is filled, so that the situation that the injection molding cylinder 601 cannot be filled in the injection molding process and stops to wait until the screw 14 stops in the plasticizing cylinder 8 is avoided, the utilization rate of equipment is improved, and the outer arc surface of the piston 602 can block a pipe orifice communicated with the plasticizing cylinder 8 in the injection molding process, so that molten plastic in the plasticizing cylinder 8 is completely extruded into the other injection molding cylinder 601.

Wherein: the plastic plasticizing and conveying device further comprises a second motor 9, a screw 14, a first motor 10, a first belt pulley 11, a belt 12, a second belt pulley 13, a second support 4 and a mold 5, wherein the second motor 9 is arranged on the right end side surface of the plasticizing cylinder 8, the left end of an output shaft of the second motor 9 penetrates through the right end side surface of the plasticizing cylinder 8, the right end of the screw 14 is fixedly connected with the left end of the output shaft of the second motor 9 through a coupler, the second motor 9 provides power for rotation of the screw 14, the outer edges of spiral pieces of the screw 14 are matched with the inner surface of the plasticizing cylinder 8, the second motor 9 drives the screw 14 to rotate, so as to plasticize and convey plastic, the first motors 10 are arranged at the right end of the upper surface of the base in two pairs, the first belt pulley 11 is arranged on the output shaft of the first motor 10, the second belt pulley 13 is arranged at the right end of the threaded rod 603, the outer arc surfaces of the first belt pulley 11 and, first motor 10, first belt pulley 11, belt 12 and second belt pulley 13 cooperate to set up to threaded rod 603 and promote the rotatory power that provides of piston 602, and second support 4 sets up in the left end of bottom plate 1, and mould 5 sets up in the upper surface of second support 4, and mould 5 is two and corresponds the setting with a section of thick bamboo 601 of moulding plastics, and mould 5 cooperates two a section of thick bamboo 601 of moulding plastics to carry out injection moulding.

Wherein: still wrap control switch group 2, control switch group 2 sets up in the upper surface of bottom plate 1, and external power source is connected to control switch group 2's input electricity, and the equal electric connection of input of first motor 10, second motor 9 and third motor 704 control switch group 2's output, and the left end of a plastify section of thick bamboo 8 is inside to be passed through the conveying pipeline intercommunication with the left end of a section of thick bamboo 601 of moulding plastics.

When in use: adding plastic particles into a charging hopper 701, controlling a third motor 704 to rotate forward through a control switch group 2, driving a crushing cutter 703 to rotate by an output shaft of the third motor 704 to crush the plastic particles, controlling the switch group 2 to control the third motor 704 to rotate backward after crushing is completed, pressing the plastic into a plasticizing cylinder 8 by using the spiral action of a spiral sheet 702, extruding the plastic in the plasticizing cylinder 8 by a screw 14 and heating the plastic by an electric heating wire wound in the plasticizing cylinder 8, pressing the molten plastic into an injection cylinder 601 through a pipeline between the plasticizing cylinder 8 and the injection cylinder 601, injecting the molten plastic into a mold 5 by using the thrust of a piston 602 by the injection cylinder 601 for injection molding, injecting the plastic in the plasticizing cylinder 8 into the injection cylinder 601 on the right side through the pipeline by the screw 14 in the injection molding process of the injection cylinder 601 on the left side, and pushing the piston 602 on the right side forward to perform injection molding after the piston 601 on the left side retracts, and the steps are carried out in a staggered mode.

It is to be noted that the core chip of the control switch group 2 disclosed in this embodiment is a PLC single chip, the specific model is mitsubishi FX1N-24MR-001, the first motor 10, the second motor 9, and the third motor 704 are freely configured according to practical application scenarios, the first motor 10 is proposed to be a three-phase hybrid stepper motor produced by shenzhen meipaiyasi limited, the second motor 9 is proposed to be a horizontal speed reduction motor of TCG series produced by tokyo taiwan limited, and the third motor 704 is proposed to be a vertical aluminum shell motor produced by tokyo limited. The control switch group 2 controls the first motor 10, the second motor 9 and the third motor 704 to work by adopting a method commonly used in the prior art.

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

Claims

1. An injection molding machine for plastic processing, which is characterized in that: comprises a bottom plate (1) and an injection molding unit (6);

base plate (1): a first support (3) is arranged on the upper surface of the bottom plate (1), a plasticizing cylinder (8) is arranged on the middle arc surface of the first support (3), and a feeding unit (7) is arranged at the right end of the plasticizing cylinder (8);

injection unit (6): the injection molding unit (6) comprises two injection molding cylinders (601), pistons (602) and threaded rods (603), the two injection molding cylinders (601) are symmetrically arranged on the upper surfaces of the front end and the rear end of the first support (3), the outer surface of each piston (602) is in sliding connection with the inner surface of each injection molding cylinder (601), the right end of each piston (602) is provided with a cavity, each threaded rod (603) is in threaded connection with a central hole formed in the right side surface of each piston (602), the right end of each threaded rod (603) penetrates through a through hole formed in the center of the right side surface of each injection molding cylinder (601), and the outer arc surface of each threaded rod (603) is fixedly connected with a bearing inner ring formed in the right side surface of each;

wherein: still wrap control switch group (2), control switch group (2) set up in the upper surface of bottom plate (1), and the external power source is connected to the input electricity of control switch group (2), and the left end of a plastify section of thick bamboo (8) is inside to be passed through the conveying pipeline intercommunication with the left end of a section of thick bamboo of moulding plastics (601) inside.

2. An injection molding machine for plastic processing according to claim 1, characterized in that: the feeding unit (7) comprises a feeding hopper (701), a spiral sheet (702), a crushing knife (703) and a third motor (704), hopper (701) sets up in the right-hand member of a plastify section of thick bamboo (8), third motor (704) sets up in the upper cover upper surface of hopper (701), the output shaft of third motor (704) passes the through-hole that hopper (701) upper cover set up, the bearing fixed connection that the output shaft extrados of third motor (704) and hopper (701) upper cover through-hole department set up, flight (702) and crushing sword (703) all set up in the output shaft extrados of third motor (704), the outer edge of flight (702) and the one end of crushing sword (703) keeping away from the output shaft of third motor (704) all with the cambered surface of hopper (701) correspond the position cooperation and set up, flight (702) set up in the lower extreme of crushing sword (703), the output of control switch group (2) is connected to the input electricity of third motor (704).

3. An injection molding machine for plastic processing according to claim 1, characterized in that: still include second motor (9) and screw rod (14), second motor (9) set up in the right-hand member side of a plastify section of thick bamboo (8), and the right-hand member side of a plastify section of thick bamboo (8) is passed to the output shaft left end of second motor (9), and the right-hand member of screw rod (14) passes through the output shaft left end fixed connection of shaft coupling and second motor (9), and the flight of screw rod (14) is outer along setting up with the interior surface fit of a plastify section of thick bamboo (8), and the output of control switch group (2) is connected to the input electricity of second motor (9).

4. An injection molding machine for plastic processing according to claim 1, characterized in that: still include first motor (10), first belt pulley (11), belt (12) and second belt pulley (13), first motor (10) are two and the symmetry sets up in the upper surface right-hand member of base, first belt pulley (11) set up in the output shaft of first motor (10), second belt pulley (13) set up in the right-hand member of threaded rod (603), the extrados of first belt pulley (11) and second belt pulley (13) all is connected with the internal surface friction of belt (12), the output of control switch group (2) is connected to the input electricity of first motor (10).

5. An injection molding machine for plastic processing according to claim 1, characterized in that: still include second support (4) and mould (5), second support (4) set up in the left end of bottom plate (1), and mould (5) set up in the upper surface of second support (4), and mould (5) are two and correspond the setting with a section of thick bamboo (601) of moulding plastics.