阅读说明：本技术 一种用于防止注塑嘴堵塞的塑料注塑机 (Plastic injection molding machine for preventing injection molding nozzle from being blocked ) 是由 方慧 于 2020-05-26 设计创作，主要内容包括：本发明公开一种用于防止注塑嘴堵塞的塑料注塑机,包括机身,所述机身的侧面穿插设置有加热块,所述机身的内部设置有流通管,所述流通管的内部转动连接有绞杆,所述正磁板靠近轮心的一侧固定连接有延时杆,所述延时杆的侧面啮合连接有延时管,所述延时杆靠近轮心的一侧转动连接有啮合杆,所述承接轮远离轮心的一侧固定连接有刮杆,所述刮杆远离承接轮的一侧滑动连接有刮片,所述刮片远离刮杆的一侧滑动连接有喷射嘴管,所述喷射嘴管的表面穿插设置有导水管,该用于防止注塑嘴堵塞的塑料注塑机,通过螺纹杆与承接轮的配合使用,从而达到了在注塑机工作时自动对清理喷嘴内壁的熔融注塑液,防止喷嘴堵塞的效果。(The invention discloses a plastic injection molding machine for preventing an injection nozzle from being blocked, which comprises a machine body, wherein a heating block is inserted into the side surface of the machine body, a circulating pipe is arranged in the machine body, a twisted rod is rotatably connected in the circulating pipe, a delay rod is fixedly connected to one side of a positive magnetic plate close to a wheel center, the side surface of the delay rod is engaged and connected with the delay pipe, one side of the delay rod close to the wheel center is rotatably connected with an engaging rod, one side of a receiving wheel far away from the wheel center is fixedly connected with a scraping rod, one side of the scraping rod far away from the receiving wheel is slidably connected with a scraping blade, one side of the scraping blade far away from the scraping rod is slidably connected with an injection nozzle pipe, a water guide pipe is inserted into the surface of the injection nozzle pipe, and the plastic injection molding machine for preventing the injection nozzle from being blocked is matched with the receiving wheel through a threaded rod, so that molten injection molding, and the effect of preventing the nozzle from being blocked.)

1. A plastics injection molding machine for preventing injection nozzle blocks up, includes fuselage (1), its characterized in that: the heating block (3) is arranged on the side face of the machine body (1) in an inserting mode, the circulating pipe (4) is arranged inside the machine body (1), the twisting rod (5) is connected to the circulating pipe (4) in a rotating mode, the threaded rod (10) is fixedly connected to the right side of the twisting rod (5), the bearing wheel (11) is connected to the side face of the threaded rod (10) in an engaging mode, the fixing rod (2) is connected to the side face of the bearing wheel (11) in a sliding mode, the positive magnetic plate (15) is arranged inside the bearing wheel (11), the delay rod (13) is fixedly connected to one side, close to the wheel center, of the positive magnetic plate (15), the delay tube (14) is connected to the side face of the delay rod (13) in an engaging mode, the engaging rod (12) is rotatably connected to one side, close to the wheel center, of the bearing wheel (11) is fixedly connected to the scraping rod (16), and the scraping blade (17) is connected to one side, far away from, the side surface of the scraping rod (16) is fixedly connected with a pressure switch (18), one side of the scraping blade (17) far away from the scraping rod (16) is connected with a spray nozzle pipe (6) in a sliding mode, and a water guide pipe (7) is arranged on the surface of the spray nozzle pipe (6) in an inserting mode.

2. A plastic injection molding machine for preventing clogging of an injection nozzle according to claim 1, characterized in that: and a negative magnetic block (9) is arranged inside the injection nozzle pipe (6).

3. A plastic injection molding machine for preventing clogging of an injection nozzle according to claim 1, characterized in that: the left side of the water guide pipe (7) is rotatably connected with a water pumping fan (8).

4. A plastic injection molding machine for preventing clogging of an injection nozzle according to claim 1, characterized in that: the machine body (1) is filled with water and is heated by the heating block (3).

5. A plastic injection molding machine for preventing clogging of an injection nozzle according to claim 1, characterized in that: and a return spring is arranged on one side of the fixed rod (2) far away from the wheel center.

6. A plastic injection molding machine for preventing clogging of an injection nozzle according to claim 1, characterized in that: and one side of the positive magnetic plate (15) close to the wheel center is provided with an extension spring.

7. A plastic injection molding machine for preventing clogging of an injection nozzle according to claim 1, characterized in that: the water guide pipe (7) penetrates through the inner part of the spray nozzle pipe (7) and is attached to the inner wall of the spray nozzle pipe (7).

8. A plastic injection molding machine for preventing clogging of an injection nozzle according to claim 1, characterized in that: the pressure switch (18) starts a motor for controlling the water pumping fan (8) when being extruded.

Technical Field

The invention relates to the technical field of plastic injection molding, in particular to a plastic injection molding machine for preventing an injection molding nozzle from being blocked.

Background

In recent years, injection molding is also successfully used for molding some thermosetting plastics, has short molding cycle and can form a molded product with the mass of several grams to dozens of kilograms, and can form a molded product with a complicated shape, precise size and metal or nonmetal inserts at one time.

In the process of the operation of the injection molding machine, the injection molding liquid in a molten state needs to be heated and then is extruded by the conveying hinge rod and is sprayed into a mold from the nozzle, but because the nozzle cannot be cleaned, the inner surface of the nozzle can generate the molten injection molding liquid after being sprayed for a plurality of times continuously, and the molten injection molding liquid is accumulated continuously, so that the nozzle is blocked.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a plastic injection molding machine for preventing an injection molding nozzle from being blocked, which has the advantages of automatically cleaning molten injection molding liquid on the inner wall of the nozzle when the injection molding machine works, preventing the nozzle from being blocked and the like, and solves the problems that the existing injection molding machine cannot clean the nozzle and is likely to be blocked after being used for a long time.

(II) technical scheme

In order to realize the purposes of automatically cleaning the molten injection molding liquid on the inner wall of the nozzle and preventing the nozzle from being blocked when the injection molding machine works, the invention provides the following technical scheme: a plastic injection molding machine for preventing an injection nozzle from being blocked comprises a machine body, wherein a heating block is arranged on the side surface of the machine body in an inserting mode, a runner pipe is arranged in the machine body, a twisting rod is connected to the inside of the runner pipe in a rotating mode, a threaded rod is fixedly connected to the right side of the twisting rod, a bearing wheel is connected to the side surface of the threaded rod in an engaging mode, a fixed rod is connected to the side surface of the bearing wheel in a sliding mode, a positive magnetic plate is arranged in the bearing wheel, a time delay rod is fixedly connected to one side, close to a wheel center, of the positive magnetic plate, a time delay rod is connected to the side surface of the time delay rod in an engaging mode, an engaging rod is connected to one side, close to the wheel center, of the bearing wheel, a scraping rod is fixedly connected to one side, far away from the wheel center, of the scraping rod, a scraping blade is connected to one side, the surface of the injection nozzle pipe is provided with a water guide pipe in an inserting way.

Preferably, a negative magnetic block is arranged inside the injection nozzle pipe.

Preferably, the left side of the water guide pipe is rotatably connected with a water pumping fan.

Preferably, the inside of the machine body is filled with moisture and heated by the heating block, so that the injection molding liquid is prevented from condensing in the flow tube in the flowing process.

Preferably, a return spring is arranged on one side of the fixed rod, which is far away from the wheel center.

Preferably, one side of the positive magnetic plate close to the wheel center is provided with an extension spring.

Preferably, the water guide pipe penetrates through the inside of the nozzle pipe and is attached to the inner wall of the nozzle pipe, so that the heat transfer of the nozzle pipe is accelerated.

Preferably, the pressure switch starts a motor for controlling the pumping fan when the pressure switch is pressed.

(III) advantageous effects

Compared with the prior art, the invention provides a plastic injection molding machine for preventing an injection nozzle from being blocked, which has the following beneficial effects:

1. this a plastics injection molding machine for preventing mouth of moulding plastics from blockking up uses through the threaded rod and the cooperation of accepting the wheel, and at injection molding machine during operation, the starter motor, the heating block generates heat, heats the inside moisture that sets up of fuselage, when treating the temperature is permanent, pours the melting injection molding liquid to the runner pipe through the feed liquor pipe that the fuselage surface interlude set up, and the injection molding liquid moves to the right side along with the rotation of hank pole.

The threaded rod rotates along with the twisting rod, the bearing wheel meshed with the threaded rod is driven to move rightwards, meanwhile, the bearing wheel rotates, the scraping rod on the surface of the threaded rod drives the scraping blade to scrape the inner wall of the spraying nozzle pipe, and the injection molding liquid which is left when the injection molding liquid is sprayed last time and is attached to the inner wall of the spraying nozzle pipe is scraped.

The bearing wheel moves rightwards along with the bearing wheel, when the bearing wheel reaches between the negative magnetic blocks, the negative magnetic blocks and the positive magnetic plate are mutually attracted, under the action of magnetic force, the positive magnetic plate pulls the delay rod to move towards the direction away from the wheel center, so that the delay rod pulls the meshing rod to deflect rightwards, the bearing wheel is not meshed with the threaded rod, under the action of a reset spring arranged on the right side of the fixed rod, the bearing wheel begins to reset leftwards, and in order to prevent the bearing wheel from being continuously reset when the positive magnetic blocks and the negative magnetic blocks are not mutually attracted by the magnetic force, a delay mechanism is arranged.

Because the delay rod can not be in meshing transmission with the delay tube when moving away from the wheel center, and after the positive magnetic plate loses magnetic force, the extension compression spring arranged on the side surface can pull the positive magnetic plate towards the wheel center, but the delay rod needs to be in meshing transmission with the delay tube, so that the reset of the delay rod needs a certain time, and in the time, the receiving wheel completes the reset process.

In the process of next work of the injection molding machine, the receiving wheel can rotate again to clean the injection nozzle pipe through the scraping blade, so that circulation is achieved, and the effects of automatically cleaning molten injection molding liquid on the inner wall of the nozzle and preventing the nozzle from being blocked during the work of the injection molding machine are achieved.

2. This a plastics injection molding machine for preventing injection nozzle jam, through the cooperation of doctor-bar and scraping the pole and use, when the doctor-bar slides along the injection nozzle inside pipe wall, leave over the liquid of moulding plastics at its inner wall and be scraped by the doctor-bar, but if the liquid of moulding plastics has cooled off the sclerosis, will die the doctor-bar card.

Therefore, when the scraping blade meets hardened injection molding liquid, the scraping blade is braked and moves relative to the scraping rod, the buffer spring on the left side surface of the scraping rod is extruded, the pressure switch on the right side of the scraping rod is extruded, the motor for controlling the water pumping fan is started, the water pumping fan pumps water in the machine body into the water guide pipe, the water enters the spray nozzle pipe and heats the inner wall of the spray nozzle pipe after being discharged into the machine body through the outlet of the water guide pipe, the heat transfer of the inner wall of the spray nozzle pipe is accelerated, the hardened injection molding liquid is heated, and the injection molding liquid is loosened and scraped by the scraping blade, so that the effect of preventing the injection molding liquid from being solidified, hardened and incapable of being scraped on the inner wall of the spray.

Drawings

FIG. 1 is a schematic cross-sectional view of the entire structure of the present invention;

FIG. 2 is a schematic cross-sectional view of an injection nozzle tube according to the present invention;

FIG. 3 is a schematic cross-sectional view of a structural receiving wheel of the present invention;

FIG. 4 is a schematic view of the connection between the fixing rod and the nozzle tube according to the present invention;

FIG. 5 is a schematic view of the structure of the present invention showing the connection between the wiper blade and the wiper rod;

FIG. 6 is a schematic view of the connection between the delay rod and the delay tube according to the present invention.

In the figure: 1. the device comprises a machine body, 2, a fixing rod, 3, a heating block, 4, a circulating pipe, 5, a hinge rod, 6, an injection nozzle pipe, 7, a water guide pipe, 8, a water pumping fan, 9, a negative magnetic block, 10, a threaded rod, 11, a bearing wheel, 12, a meshing rod, 13, a delay rod, 14, a delay pipe, 15, a positive magnetic plate, 16, a scraping rod, 17, a scraping blade, 18 and a pressure switch.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-6, a plastic injection molding machine for preventing an injection nozzle from being blocked comprises a machine body 1, wherein the machine body 1 is made of stainless steel, so that equipment can be effectively prevented from being corroded, the service life of the equipment is greatly prolonged, the production cost is reduced, and the plastic injection molding machine plays an indispensable role in enterprises, the machine body 1 is filled with water and is heated by a heating block 3 to ensure that injection molding liquid cannot be condensed in a flow pipe 4 in the flow process, the heating block 3 is inserted into the side surface of the machine body 1, a flow pipe 4 is arranged in the machine body 1, a hinge rod 5 is rotatably connected in the flow pipe 4, a threaded rod 10 is fixedly connected to the right side of the hinge rod 5, a bearing wheel 11 is meshed and connected to the side surface of the threaded rod 10, a fixing rod 2 is slidably connected to the side surface of the bearing wheel 11, a return spring is arranged on one side of the fixing rod 2 far from the wheel center, a tension spring is arranged on one side of the positive magnetic plate 15 close to the wheel center, a delay rod 13 is fixedly connected on one side of the positive magnetic plate 15 close to the wheel center, a delay tube 14 is meshed and connected on the side of the delay rod 13 close to the wheel center, a meshing rod 12 is rotatably connected on one side of the delay rod 13 close to the wheel center, a scraping rod 16 is fixedly connected on one side of the receiving wheel 11 away from the wheel center, a scraping blade 17 is slidably connected on one side of the scraping rod 16 away from the receiving wheel 11, a pressure switch 18 is fixedly connected on the side of the scraping rod 16, the pressure switch 18 starts a motor for controlling a water pumping fan 8 when being subjected to extrusion force, a spray nozzle tube 6 is slidably connected on one side of the scraping blade 17 away from the scraping rod 16, a negative magnetic block 9 is arranged inside the spray nozzle tube 6, a water guide tube 7 is arranged on the surface of the spray nozzle tube 6 in an inserting manner, the water guide tube 7 is, the water guide pipe 7 penetrates through the inside of the spray nozzle pipe 6 and is attached to the inner wall of the spray nozzle pipe 6 to accelerate heat transfer of the spray nozzle pipe 6, and the water suction fan 8 is rotatably connected to the left side of the water guide pipe 7.

At the injection molding machine during operation, starter motor, the piece that generates heat heats, heats the moisture that 1 inside set up of fuselage, treats that the temperature is constant, pours the melting liquid of moulding plastics to runner pipe 4 through the feed liquor pipe that 1 surface of fuselage interlude set up, and the liquid of moulding plastics moves to the right side along with the rotation of hinge 5.

The threaded rod 10 rotates along with the twisting rod 5, the bearing wheel 11 meshed with the threaded rod is driven to move rightwards, meanwhile, the bearing wheel 11 rotates, the scraping rod 16 on the surface of the threaded rod drives the scraping blade 17 to scrape the inner wall of the injection nozzle pipe 6, and the injection liquid which is left when the injection liquid is injected last time and is attached to the inner wall of the injection nozzle pipe 6 is scraped.

Along with the receiving wheel 11 moves rightwards, when the receiving wheel reaches between the negative magnetic blocks 9, the negative magnetic blocks 9 and the positive magnetic plate 15 are mutually attracted, under the action of magnetic force, the positive magnetic plate 15 pulls the delay rod 13 to move towards the direction away from the wheel center, so that the delay rod 13 pulls the engaging rod 12 to deflect rightwards, the receiving wheel 11 is not engaged with the threaded rod 10, under the action of a return spring arranged on the right side of the fixing rod 2, the receiving wheel 11 starts to move leftwards in a return mode, and in order to prevent the receiving wheel 11 from continuing to return when the positive magnetic blocks 15 and the negative magnetic blocks 9 are not mutually attracted by magnetic force, a delay mechanism is arranged.

Because the delay rod 13 cannot be in meshing transmission with the delay tube 14 when moving away from the wheel center, and after the positive magnetic plate 15 loses magnetic force, the tensile compression spring arranged on the side surface can pull the delay rod 13 towards the wheel center, but the delay rod 13 needs to be in meshing transmission with the delay tube 14, a certain time is needed for the reset of the delay rod 13, and in the time, the receiving wheel 11 completes the reset process.

When the wiper 17 slides along the inner wall of the nozzle tube 6, the injection liquid remaining on the inner wall thereof is scraped off by the wiper 17, but if the injection liquid has cooled and hardened, the wiper 17 is stuck.

Therefore, when the scraping blade 17 meets hardened injection molding liquid, the scraping blade 17 is braked to move relative to the scraping rod 16, the buffer spring on the left side surface of the scraping rod 16 is extruded, the pressure switch 18 on the right side of the scraping rod 16 is extruded, the motor for controlling the water pumping fan 8 is started, the water pumping fan 8 pumps water in the machine body 1 into the water guide pipe 7, the water is discharged into the machine body 1 through the outlet of the water guide pipe 7, the water entering the injection nozzle pipe 6 heats the inner wall of the injection nozzle pipe 6, the heat transfer of the inner wall of the injection nozzle pipe 6 is accelerated, the hardened injection molding liquid is heated, and the hardened injection molding liquid is loosened and scraped by the scraping blade 17, so that the effect that the injection molding liquid is prevented from being solidified and hardened on the inner wall of the injection nozzle pipe 6 and.

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.