CN111571915B

CN111571915B - Double-injection-pipe injection molding machine

Info

Publication number: CN111571915B
Application number: CN202010479329.6A
Authority: CN
Inventors: 高章磊
Original assignee: Shandong Jian'an Industrial Co ltd
Current assignee: SHANDONG JIAN'AN INDUSTRIAL Co.,Ltd.
Priority date: 2020-05-29
Filing date: 2020-05-29
Publication date: 2021-07-20
Anticipated expiration: 2040-05-29
Also published as: CN111571915A; GB202014696D0

Abstract

The invention discloses a double-injection-pipe injection molding machine, which comprises a shell, wherein a hydraulic transmission space is arranged in the shell, an upper hydraulic oil space is arranged at the lower side of the hydraulic transmission space, a screw hydraulic oil space is arranged at the lower side of the upper hydraulic oil space, the lower side of the shell is connected with a lower shell, a lower compression transmission space is arranged in the lower shell, and a main working device of the injection molding machine is arranged between the upper hydraulic oil space and the lower compression transmission space.

Description

Double-injection-pipe injection molding machine

Technical Field

The invention relates to the relevant field of injection molding machines, in particular to a double-injection-pipe injection molding machine.

Background

Injection molding, also known as injection molding or injection molding, is one of the important molding methods in plastic processing, the technology thereof has been developed quite mature and is very commonly applied, the injection molding products account for more than 30% of the total amount of the plastic products, and the injection molding products have wide application in many fields of national economy.

Disclosure of Invention

The invention aims to provide a double-injection-pipe injection molding machine to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: the injection molding machine comprises a shell, a hydraulic transmission space is arranged in the shell, an upper hydraulic oil space is arranged on the lower side of the hydraulic transmission space, a screw hydraulic oil space is arranged on the lower side of the upper hydraulic oil space, the lower side of the shell is connected with a lower shell, a lower compression transmission space is arranged in the lower shell, a main working device of the injection molding machine is arranged between the upper hydraulic oil space and the lower compression transmission space, the working device comprises a working baffle fixedly connected with the left inner side wall and the right inner side wall of the shell, two screw cylinders are fixedly connected on the working baffle in a bilateral symmetry mode relative to the central line of the device, a screw is connected in the screw cylinder in a sliding mode, a screw transmission gear is fixedly connected on the upper side of the screw, a cylinder wall gear is hinged on the right side wall of the screw cylinder, the left side of the cylinder wall gear is meshed with the screw transmission gear, and a motor baffle is fixedly connected between the two screw cylinders, the automatic feeding device comprises a motor baffle plate, a motor, a driving pulley, a driving shaft, a driving pulley, a hydraulic movable plate, a screw cylinder, a feeding pipe and a feeding pipe, wherein the motor baffle plate is fixedly connected with a main working motor, the main working motor is connected with the working power shaft in a power mode, the driving pulley is fixedly connected to the upper side of the working power shaft, the motor baffle plate is symmetrically and rotatably connected with two left gear shafts about a neutral line of the motor baffle plate, the left gear shaft is fixedly connected with a left pulley, the left pulley is directly connected with the driving pulley through the belt, a left gear is fixedly connected to the lower side of the left gear shaft, the left side of the left gear is meshed with the cylinder wall gear, the upper side of the screw is fixedly connected with the hydraulic movable plate, the left side and the right side of the hydraulic movable plate are slidably connected with the screw cylinder, the feeding pipe is fixedly connected to the right side wall of the screw cylinder, the feeding pipe is internally provided with a feeding pipe space for transporting and storing raw materials, and the feeding port is arranged on the upper side of the feeding pipe, the screw rod downside is equipped with and is used for the one-way outflow head device that the one-way outflow was moulded fluid thermoplastically, screw rod section of thick bamboo upside is equipped with screw rod hydraulic oil space, screw rod hydraulic oil space downside fixedly connected with hydraulic rod, hydraulic rod downside fixedly connected with liquid outlet inner wall, screw rod hydraulic oil space is used for hydraulic fluid work extrusion hydraulic rod downstream, the screw rod downside is equipped with the one-way outflow head device, be equipped with in the hydraulic transmission space and be used for the hydraulic means to hydraulic fluid work, the downside compresses tightly the closing device who is used for compressing tightly the mould in the transmission space, the downside compresses tightly and is equipped with the unloader who is used for the unloading in the transmission space.

As preferred, the hydraulic device comprises the shell inner rear wall fixedly connected with hydraulic motor, the hydraulic motor left side power is connected with the hydraulic main power shaft, the hydraulic main power shaft is epaxial about the fixed block and the sliding block of hydraulic main power shaft central line symmetric distribution, the sliding block front side articulates there is the right side push rod, the fixed block rear side articulates there is the left side push rod, there is the upside push pedal left side push rod with articulate between the right side push rod, the sliding block front side has been handed over the right side ejector pin, the fixed block rear side articulates there is the left side ejector pin, there is the downside roof left side ejector pin with articulate between the right side ejector pin, the shell inside wall sliding connection has hydraulic pressure board, the upside push pedal upper side can with the shell looks butt, downside roof downside can with the hydraulic pressure board looks butt, the shell downside fixedly connected with hydraulic pressure pipeline, the utility model discloses a mould, including casing, hydraulic pressure clamp plate, upside hydraulic pressure baffle, upside hydraulic pressure oil space downside and division have two about upside hydraulic pressure oil space centrosymmetric hydraulic pressure oil pipeline, hydraulic pressure oil pipeline downside with the hydraulic pressure fly leaf contacts, when need impress the thermoplastic fluid to the mould, starts hydraulic motor, makes hydraulic pressure main power shaft rotate, hydraulic pressure main power shaft rotates and makes the fixed block with sliding block relative motion makes the upside push pedal contradict with the inboard upper wall of casing mutually, downside roof downside with the hydraulic pressure clamp plate offsets, makes the hydraulic pressure clamp plate extrudees hydraulic pressure oil downwards for hydraulic pressure oil is exerted pressure to the hydraulic pressure fly leaf through hydraulic pressure oil pipeline, makes hydraulic pressure push rod downstream, hydraulic pressure push rod downstream makes liquid outlet inner wall downstream, the purpose of pressing is achieved.

Preferably, the compressing device comprises a compressing device motor fixedly connected with the lower wall of the inner side of the lower compressing transmission space, a compressing power shaft is dynamically connected with the upper side of the compressing power shaft, a static mould compressing static block is fixedly connected with the upper side of the compressing power shaft, a compressing sliding block is connected with the compressing power shaft in a threaded manner, a left compressing push rod is hinged on the compressing sliding block, a left compressing push plate is hinged on the left side of the left compressing push rod, a left rotating rod is hinged on the static mould compressing static block, a left compressing push plate is hinged between the left rotating rod and the left compressing push rod, two symmetrical discharging ejector rods relative to the central line of the left compressing push plate are fixedly connected on the left inner side wall and the right inner wall of the lower shell, two symmetrical distributing sliding connection of a moving mould and the static mould compressing static block relative to the central line of the discharging ejector rods, the left side of the movable mould is fixedly connected with the left side pressing push plate, the right side of the movable mould can be abutted against the static pressing block of the static mould, when the thermoplastic fluid in the space to be pressed is pressed, thereby leading the mixture to flow into the movable mould, opening the motor of the pressing device, driving the pressing power shaft to rotate by the motor of the pressing device, the pressing sliding blocks move upwards so that the two left pressing push plates move towards two sides to enable the moving die to extrude the static die pressing block, after injection cooling, the thermoplastic body is cooled to be a finished product, the motor of the pressing device is reversed, so that the two left pressing push plates move inwards, so that the movable mould and the static mould are not pressed against each other any more, and the two sides of the blanking ejector rod push out the formed finished product out of the movable mould.

Preferably, the one-way outflow head device includes that screw rod lower extreme side is equipped with the liquid outlet inner wall, the lateral surface is equipped with, in there is the thermoplastic body to flow out, liquid outlet inner wall lateral surface articulates has about two anti-backflow baffles of liquid outlet inner wall central line symmetry, anti-backflow baffle with liquid outlet inner wall downside is by being connected, the downside is equipped with, works as when liquid outlet inner wall accomplishes down exerted pressure, hydraulic motor reversal makes the hydraulic pressure main power axle reversal, makes hydraulic pressure clamp plate rebound makes the screw rod rebound, thereby makes in thermoplastic body with anti-backflow baffle offsets, because limiting displacement make anti-backflow baffle can't rotate, thereby realize the anti-backflow effect of one-way outflow head device.

Preferably, the blanking device comprises two blanking ejector rods fixedly connected to the inner walls of the left side and the right side of the lower side shell and symmetrical to the longitudinal symmetry axis of the lower side shell, the two blanking ejector rods are fixedly connected with contact blanking rods, the blanking ejector rods and the static die are tightly pressed against the static blocks and are in sliding connection with the movable die, the contact blanking rods and the movable die can be in sliding connection, after the thermoplastic body is cooled into a finished product after being injected and cooled, a motor of the pressing device is reversed to enable the two left side pressing push plates to move towards the inner side, the movable die and the static die are tightly pressed against each other, and the finished product formed is ejected out of the two sides of the blanking ejector rods.

In conclusion, the beneficial effects of the invention are as follows: the invention adopts double-helix tube injection, so that two helix tubes can work simultaneously, thus improving the production efficiency.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.

FIG. 1 is a schematic view of the overall full-section main view structure of a double-injection-pipe injection molding machine according to the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1;

FIG. 3 is an enlarged view of a portion of FIG. 1 at B in accordance with the present invention;

FIG. 4 is an enlarged view of a portion of FIG. 1 at C in accordance with the present invention;

FIG. 5 is a cross-sectional view taken at D-D of FIG. 1 in accordance with the present invention.

Detailed Description

All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.

Any feature disclosed in this specification (including any accompanying claims, abstract and drawings), may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.

The invention will now be described in detail with reference to fig. 1-5, wherein for ease of description the orientations described hereinafter are now defined as follows: the up, down, left, right, front and rear directions described below correspond to the front, back, left, right, top and bottom directions of the view direction of fig. 1, fig. 1 is a front view of the apparatus of the present invention, and the directions shown in fig. 1 correspond to the front, back, left, right, top and bottom directions of the apparatus of the present invention.

Referring to fig. 1-5, an embodiment of the present invention is shown: a double-injection pipe injection molding machine comprises a shell 11, wherein a hydraulic transmission space 14 is arranged in the shell 11, an upper hydraulic oil space 16 is arranged at the lower side of the hydraulic transmission space 14, a screw hydraulic oil space 17 is arranged at the lower side of the upper hydraulic oil space 16, the lower side of the shell 11 is connected with a lower shell 12, a lower pressing transmission space 13 is arranged in the lower shell 12, a main working device of the injection molding machine is arranged between the upper hydraulic oil space 16 and the lower pressing transmission space 13, the working device comprises a working baffle 43 fixedly connected with the left inner side wall and the right inner side wall of the shell 11, two screw cylinders 42 are fixedly connected on the working baffle 43 in a bilateral symmetry mode relative to a central line of the device, a screw 33 is connected in the screw cylinder 42 in a sliding mode, a screw transmission gear 32 is fixedly connected on the upper side of the screw 33, and a gear 81 is hinged to the right side wall of the screw cylinder 42, the left side of the cylinder wall gear 81 is meshed with the screw transmission gear 32, a motor baffle 30 is fixedly connected between the two screw cylinders 42, a main working motor 29 is fixedly connected on the motor baffle 30, a working power shaft 28 is power-connected on the main working motor 29, a driving belt pulley 23 is fixedly connected on the upper side of the working power shaft 28, two left side gear shafts 26 are symmetrically and rotatably connected on the motor baffle 30 about a neutral line of the motor baffle 30, a left side belt pulley 25 is fixedly connected on the left side gear shaft 26, the left side belt pulley 25 is directly connected with the driving belt pulley 23 through a belt 24, a left side gear 31 is fixedly connected on the lower side of the left side gear shaft 26, the left side of the left side gear 31 is meshed with the cylinder wall gear 81, a hydraulic movable plate 18 is fixedly connected on the upper side of the screw 33, and the left and right sides of the hydraulic movable plate 18 are slidably connected with the screw cylinders 42, the utility model discloses a screw rod section of thick bamboo 42 right side wall fixedly connected with inlet pipe 35, be equipped with the inlet pipe space 34 that is used for the transportation to store the raw materials in the inlet pipe 35, it is equipped with charge door 71 that is used for the feeding to subtract material pipe 35 upside, screw rod 33 downside is equipped with the one-way outflow head device that is used for the thermoplastic fluid of one-way outflow, screw rod section of thick bamboo 42 upside is equipped with screw rod hydraulic oil space 17, screw rod hydraulic oil space 17 downside fixedly connected with hydraulic rod 83, hydraulic rod 83 downside fixedly connected with liquid outlet inner wall 36, screw rod hydraulic oil space 17 is used for hydraulic fluid work extrusion hydraulic rod 83 downstream, screw rod 33 downside is equipped with the one-way outflow head device, be equipped with the hydraulic means that is used for doing work to hydraulic fluid in the hydraulic transmission space 14, be equipped with the closing device who is used for compressing tightly the mould in the downside compresses tightly transmission space 13, a blanking device for blanking is arranged in the lower side pressing transmission space 13.

In addition, in one embodiment, the hydraulic device includes a hydraulic motor 45 fixedly connected to the rear wall of the inner side of the housing 11, a hydraulic main power shaft 46 is dynamically connected to the left side of the hydraulic motor 45, a fixed block 53 and a sliding block 47 symmetrically distributed on the hydraulic main power shaft 46 about the center line of the hydraulic main power shaft 46 are provided on the hydraulic main power shaft 46, a right push rod 48 is hinged to the front side of the sliding block 47, a left push rod 50 is hinged to the rear side of the fixed block 53, an upper push plate 49 is hinged between the left push rod 50 and the right push rod 48, a right push rod 56 is hinged to the front side of the sliding block 47, a left push rod 54 is hinged to the rear side of the fixed block 53, a lower push rod 55 is hinged between the left push rod 54 and the right push rod 56, a hydraulic pressure plate 57 is slidably connected to the inner side wall of the housing 11, the upper side surface of the upper push rod 49 can abut against the housing 11, the downside roof 55 downside can with hydraulic pressure clamp plate 57 looks butt, casing 11 downside fixedly connected with hydraulic pressure oil pipeline 21, the overhanging baffle 27 of casing with be equipped with upside hydraulic oil space 16 between the hydraulic pressure clamp plate 57, upside hydraulic oil space 16 downside with open have two about the hydraulic pressure oil pipeline 21 of upside hydraulic oil space 16 central symmetry, hydraulic pressure oil pipeline 21 downside with hydraulic pressure movable plate 18 contacts, when need to mould thermoplastic fluid of impressing, starts hydraulic motor 45 for hydraulic pressure main power axle 46 rotates, hydraulic pressure main power axle 46 rotates and makes fixed block 53 with sliding block 47 relative motion makes upside push pedal 49 contradict with the inboard upper wall of casing 11, downside roof 55 downside with hydraulic pressure clamp plate 57 offsets, makes hydraulic pressure clamp plate 57 extrudes hydraulic pressure oil downwards, the hydraulic oil is pressed to the hydraulic movable plate 18 through the hydraulic oil pipeline 21, so that the hydraulic push rod 83 moves downwards, and the hydraulic push rod 83 moves downwards so that the inner wall 36 of the liquid outlet moves downwards, thereby achieving the purpose of pressing.

In addition, in an embodiment, the compressing device includes the downside compresses tightly the inboard lower wall fixedly connected with closing device motor 69 of transmission space 13, the power connection of closing device motor 69 upside has compresses tightly power shaft 68 compress tightly the static piece 63 of power shaft 68 upside fixedly connected with stationary die, threaded connection compresses tightly sliding block 67 on compressing tightly power shaft 68, it has left side to compress tightly push rod 66 to articulate on compressing tightly sliding block 67, left side compresses tightly push rod 66 left side and articulates there is left side to compress tightly push pedal 65, stationary die compresses tightly and articulates on static piece 63 has left side dwang 64, left side dwang 64 with it has left side to compress tightly push pedal 65 to compress tightly between the push rod 66 in the left and right sides, fixed connection is about on the inside wall about downside casing 12 the left side compresses tightly two unloading ejector pins 61 of push pedal 65 central line symmetry, two are on unloading ejector pin 61 have moving die 62 and stationary die with regard to its central line symmetric distribution sliding connection A stationary pressing block 63 is pressed, the left pressing push plate 65 is fixedly connected to the left side of the movable mold 62, the right side of the movable mold 62 can abut against the stationary pressing block 63, when the thermoplastic fluid in the space 60 to be pressed is pressed so that it flows into the movable mold 62, the pressing motor 69 is turned on, the pressing motor 69 drives the pressing power shaft 68 to rotate so that the pressing slide block 67 does not move upward so that the two left pressing push plates 65 move to both sides so that the movable mold 62 presses the stationary pressing block 63, after injection cooling, the thermoplastic body is cooled to a finished product, the pressing motor 69 is reversed so that the two left pressing push plates 65 move inward so that the movable mold 62 and the stationary pressing block 63 no longer abut against each other, and ejecting the formed finished product out of the movable die 62 from two sides of the blanking ejector rod 61.

In addition, in one embodiment, the one-way outflow head device comprises a liquid outlet inner wall 36 arranged at the lower end side of the screw rod 33, the outer side surface is provided with a baffle 37, thermoplastic fluid flows out of the baffle 37, the outer side surface of the inner wall 36 of the liquid outlet is hinged with two backflow-proof baffles 39 which are symmetrical relative to the central line of the inner wall 36 of the liquid outlet, the anti-backflow baffle 39 is connected with the lower side of the inner wall 36 of the liquid outlet by 40, the lower side of the baffle 37 is provided with a baffle 41, when the inner wall 36 of the liquid outlet finishes applying pressure downwards, the hydraulic motor 45 rotates reversely to make the main hydraulic power shaft 46 rotate reversely, the hydraulic pressure plate 57 is moved upwards, so that the screw 33 is moved upwards, so that the thermoplastic body in the cylinder 41 is pressed against the backflow prevention baffle 39, the backflow prevention baffle 39 cannot rotate due to the limiting effect of the check valve 40, so that the backflow prevention effect of the one-way outflow head device is achieved.

In addition, in one embodiment, the blanking device includes two blanking ejector rods 61 that are fixedly connected to the inner walls of the left and right sides of the lower housing 12 and are symmetrical with respect to the longitudinal symmetry axis of the lower housing 12, two blanking ejector rods 61 are fixedly connected to contact blanking rods 82, the blanking ejector rods 61 are slidably connected to the stationary mold pressing stationary block 63 and the movable mold 62, the contact blanking rods 82 are slidably connected to the movable mold 62, after injection cooling, the thermoplastic body is cooled to form a finished product, the pressing device motor 69 is rotated reversely, so that the two left pressing push plates 65 move inwards, the movable mold 62 is no longer abutted against the stationary mold pressing stationary block 63, and the two sides of the blanking ejector rods 61 push out the formed finished product out of the movable mold 62.

In the initial state, the hydraulic motor 45 is not started, the upper push plate 49 and the housing 11 are not in a pressing state, the pressing device motor 69 is in a non-started state, and the left pressing push plate 65 and the moving die 62 are not in a pressing state.

When the raw materials are poured into the feed inlet 71, the main working motor 29 is started, so that the working power shaft 28 rotates to drive the belt 24 to rotate the left side gear 31, the left side gear 25 rotates to drive the left side gear 31 to rotate, the left side gear 31 rotates to enable the screw transmission gear 32 to rotate, the screw transmission gear 32 rotates to enable the threads to rotate, the raw materials are transported, when thermoplastic fluid needs to be pressed into the die, the hydraulic motor 45 is started, so that the hydraulic main power shaft 46 rotates, the hydraulic main power shaft 46 rotates to enable the fixed block 53 and the sliding block 47 to move relatively, so that the upper side push plate 49 is in conflict with the inner upper wall of the shell 11, the lower side top plate 55 is in conflict with the hydraulic pressure plate 57, so that the hydraulic pressure plate 57 extrudes hydraulic oil downwards, and the hydraulic pressure oil is applied to the hydraulic movable plate 18 through the hydraulic oil pipeline 21, the hydraulic push rod 83 moves downwards, the hydraulic push rod 83 moves downwards to move the inner wall 36 of the liquid outlet to apply pressure, after injection and cooling, the thermoplastic body is cooled to form a finished product, the pressing device motor 69 rotates reversely, the two left pressing push plates 65 move inwards to make the movable die 62 and the stationary die pressing block 63 not to abut against each other, the two sides of the blanking ejector rod 61 push the formed finished product out of the movable die 62, when the inner wall 36 of the liquid outlet completes downward pressure application, the hydraulic motor 45 rotates reversely to make the hydraulic main power shaft 46 rotate reversely, so that the hydraulic pressing plate 57 moves upwards to make the screw 33 move upwards, so that the thermoplastic body in the cylinder 41 abuts against the backflow preventing baffle 39, and the backflow preventing baffle 39 cannot rotate due to the limiting effect of the cylinder 40, thereby realizing the backflow prevention function of the one-way outflow head device.

The invention has the beneficial effects that: the invention adopts double-helix tube injection, so that two helix tubes can work simultaneously, thus improving the production efficiency.

The above description is only an embodiment of the invention, but the scope of the invention is not limited thereto, and any changes or substitutions that are not thought of through the inventive work should be included in the scope of the invention. Therefore, the protection scope of the invention should be subject to the protection scope defined by the claims.

Claims

1. The utility model provides a two notes pipe injection molding machine, includes the casing, its characterized in that: the injection molding machine is characterized in that a hydraulic transmission space is arranged in the shell, an upper hydraulic oil space is arranged on the lower side of the hydraulic transmission space, a screw hydraulic oil space is arranged on the lower side of the upper hydraulic oil space, the lower side of the shell is connected with a lower shell, a lower compression transmission space is arranged in the lower shell, a working device of the injection molding machine is arranged between the upper hydraulic oil space and the lower compression transmission space, the working device comprises a working baffle plate fixedly connected with the left inner side wall and the right inner side wall of the shell, two screw cylinders are fixedly connected on the working baffle plate in a bilateral symmetry mode relative to the central line of the device, a screw is connected in the screw cylinder in a sliding mode, a screw transmission gear is fixedly connected on the upper side of the screw, a cylinder wall gear is hinged to the right side wall of the screw cylinder, the left side of the cylinder wall gear is meshed with the screw transmission gear, and a motor baffle plate is fixedly connected between the two screw cylinders, the motor baffle plate is fixedly connected with a main working motor, the main working motor is connected with a working power shaft in a power mode, the upper side of the working power shaft is fixedly connected with a driving belt pulley, the motor baffle plate is symmetrically and rotatably connected with two left side gear shafts about a neutral line of the motor baffle plate, the left side gear shaft is fixedly connected with a left side belt pulley, the left side belt pulley is directly connected with the driving belt pulley through a belt, the lower side of the left side gear shaft is fixedly connected with a left side gear, the left side of the left side gear is meshed with the cylinder wall gear, the upper side of the screw is fixedly connected with a hydraulic movable plate, the left side and the right side of the hydraulic movable plate are slidably connected with the screw cylinder, the right side wall of the screw cylinder is fixedly connected with a feeding pipe, a feeding pipe space for transporting and storing raw materials is arranged in the feeding pipe, and a feeding port for feeding is arranged on the upper side of the feeding pipe, the screw rod downside is equipped with and is used for the one-way outflow head device that the one-way outflow was moulded fluid thermoplastically, screw rod section of thick bamboo upside is equipped with screw rod hydraulic oil space, screw rod hydraulic oil space downside fixedly connected with hydraulic rod, hydraulic rod downside fixedly connected with liquid outlet inner wall, screw rod hydraulic oil space is used for hydraulic fluid work extrusion hydraulic rod downstream, the screw rod downside is equipped with the one-way outflow head device, be equipped with in the hydraulic transmission space and be used for the hydraulic means to hydraulic fluid work, the downside compresses tightly the closing device who is used for compressing tightly the mould in the transmission space, the downside compresses tightly and is equipped with the unloader who is used for the unloading in the transmission space.

2. The double-injection-pipe injection molding machine according to claim 1, characterized in that: the hydraulic device comprises a hydraulic motor fixedly connected with the rear wall of the inner side of the shell, a hydraulic main power shaft is connected with the left side power of the hydraulic motor, a fixed block and a sliding block which are symmetrically distributed about the central line of the hydraulic main power shaft are arranged on the hydraulic main power shaft, a right side push rod is hinged on the front side of the sliding block, a left side push rod is hinged on the rear side of the fixed block, an upper side push plate is hinged between the left side push rod and the right side push rod, a right side ejector rod is hinged on the front side of the sliding block, a left side ejector rod is hinged on the rear side of the fixed block, a lower side top plate is hinged between the left side ejector rod and the right side ejector rod, a hydraulic pressure plate is connected with the inner side wall of the shell in a sliding manner, the upper side surface of the upper side push plate can be abutted against the shell, the lower side top plate lower side surface can be abutted against the hydraulic pressure plate, a hydraulic oil pipeline is fixedly connected with the lower side of the shell, an upper side hydraulic oil space is arranged between the outward extending baffle of the shell and the hydraulic pressure pressing plate, two hydraulic oil pipelines which are symmetrical about the center of the upper side hydraulic oil space are arranged on the lower side of the upper side hydraulic oil space, the lower side of the hydraulic oil pipeline is in contact with the hydraulic movable plate, when thermoplastic fluid needs to be pressed into a die, the hydraulic motor is started to enable the hydraulic main power shaft to rotate, the hydraulic main power shaft rotates to enable the fixed block and the sliding block to move relatively, the upper side push plate is enabled to be in contact with the inner upper wall of the shell, the lower side top plate lower side is enabled to be in contact with the hydraulic pressure pressing plate, the hydraulic pressing plate extrudes hydraulic oil downwards, the hydraulic oil is enabled to apply pressure to the hydraulic movable plate through the hydraulic oil pipeline, the hydraulic push rod moves downwards, and the hydraulic push rod moves downwards to enable the inner wall of the liquid outlet to move downwards, the purpose of pressing is achieved.

3. The double-injection-pipe injection molding machine according to claim 1, characterized in that: the pressing device comprises a pressing device motor fixedly connected with the lower wall of the inner side of the lower pressing transmission space, a pressing power shaft is dynamically connected with the upper side of the pressing power shaft, a static mould pressing static block is fixedly connected with the upper side of the pressing power shaft, a pressing sliding block is connected with the pressing power shaft in a threaded manner, a left pressing push rod is hinged on the pressing sliding block, a left pressing push plate is hinged on the left side of the left pressing push rod, a left rotating rod is hinged on the static mould pressing static block, a left pressing push plate is hinged between the left rotating rod and the left pressing push rod, two symmetrical discharging ejector rods are fixedly connected with the central line of the left pressing push plate on the left inner side wall and the right inner wall of the lower shell, two discharging ejector rods are symmetrically distributed on the central line of the discharging ejector rods and are connected with a moving mould and the static mould pressing static block, the left side of the movable mould is fixedly connected with the left side pressing push plate, the right side of the movable mould can be abutted against the static pressing block of the static mould, when the thermoplastic fluid in the space to be pressed is pressed, so that the sliding block flows into the movable die, the motor of the pressing device is started, the motor of the pressing device drives the pressing power shaft to rotate, and the pressing sliding block moves upwards, so that the two left pressing push plates move towards two sides to enable the movable die to extrude the static die pressing block, after the injected coolant is cooled, the thermoplastic body is cooled to form a finished product, the motor of the compaction device is reversed, make two the left side compresses tightly the push pedal and moves to the inboard, makes the removal mould with static mould compresses tightly the stationary block and no longer offsets, unloading ejector pin both sides are ejecting with fashioned finished product the removal mould.

4. The double-injection-pipe injection molding machine according to claim 2, characterized in that: the one-way outflow head device comprises a screw rod, a liquid outlet inner wall is arranged on the lower end side of the screw rod, a thermoplastic channel is arranged on the outer side surface, the thermoplastic body channel is internally provided with a thermoplastic body outflow, the outer side surface of the inner wall of the liquid outlet is hinged with two backflow-proof baffles which are symmetrical about the central line of the inner wall of the liquid outlet, the anti-backflow baffle is connected with the lower side of the inner wall of the liquid outlet by a component, a thermoplastic outlet is arranged at the lower side of the thermoplastic channel, when the inner wall of the liquid outlet finishes downward pressure application, the hydraulic motor rotates reversely to make the main hydraulic power shaft rotate reversely, the hydraulic pressure plate moves upwards, the screw rod moves upwards, and the thermoplastic body in the thermoplastic body outlet is abutted against the backflow prevention baffle plate, the backflow prevention baffle cannot rotate due to the limiting function of the component, so that the backflow prevention function of the one-way outflow head device is achieved.

5. A double-injection-pipe injection molding machine according to claim 3, characterized in that: unloader includes downside casing left and right sides inner wall fixed connection is about two unloading ejector pins, two of downside casing longitudinal symmetry axisymmetric's fixedly connected with contact unloading pole on the unloading ejector pin, the unloading ejector pin with static piece is compressed tightly to static mould with remove mould sliding connection, contact unloading pole with remove the mould can sliding connection, after pouring into the coolant cooling into for the thermoplastic body cools off into the finished product, the closing device motor reversal makes two the left side compresses tightly the push pedal and removes to the inboard, makes remove the mould with static mould compresses tightly static piece no longer offsets, unloading ejector pin both sides are ejecting with fashioned finished product remove the mould.