CN216032119U - Plastic injection molding machine - Google Patents

Abstract

The utility model discloses a plastic injection molding machine which comprises a leakage-proof pipe, a material conveying pipe, a base and a stirring box, wherein the material conveying pipe is installed at one end of the top of the base, an installation frame is installed at the other end of the top of the base, the stirring box is installed at the top of the installation frame, a second electric heating wire is installed on the outer side of the stirring box, a top frame is installed at the top of the stirring box, a motor is installed at one end, close to the material conveying pipe, of the top frame, and a driving shaft extending into the stirring box is installed at the output end of the motor. When the injection device is used, the air pump pumps out air in the heat shield, the air is heated by the first electric heating wire, and the heated air flows into the heat shield again through the heating pipe, so that the outer side of the material conveying pipe can be uniformly heated, the plastic raw material in the material conveying pipe can be prevented from being cooled and solidified, and the normal operation of the injection process can be ensured.

Description

Plastic injection molding machine

Technical Field

The utility model relates to the technical field of plastic cup production equipment, in particular to a plastic injection molding machine.

Background

Plastic injection molding is a molding method for injection and molding, the equipment is called plastic injection molding machine, which is called injection molding machine for short, the plastic injection molding machine is the main molding equipment for making various plastic products from thermoplastic plastics and thermosetting plastics, when producing plastic cups, hot-melt plastic raw materials are often injected into a mold by the plastic injection molding machine, and then the raw materials are molded into cups.

When the existing plastic injection molding machine is used, the outer side of a conveying pipe for injection is not provided with a heat insulation structure, and the pipe orifice of the conveying pipe is not provided with an anti-leakage structure, so that in the injection process, the raw material inside the conveying pipe is easy to cool and solidify, and after the injection is finished, the raw material inside the conveying pipe is easy to continue to leak to the outside, and therefore a novel plastic injection molding machine is urgently needed to solve the problems.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a plastic injection molding machine that solves the problems set forth above in the background art.

In order to achieve the purpose, the utility model provides the following technical scheme: a plastic injection molding machine comprises a leakage-proof pipe, a conveying pipe, a base and an agitator tank, wherein the conveying pipe is installed at one end of the top of the base, a mounting frame is installed at the other end of the top of the base, the agitator tank is installed at the top of the mounting frame, a second electric heating wire is installed on the outer side of the agitator tank, a top frame is installed at the top of the agitator tank, a motor is installed at one end, close to the conveying pipe, of the top frame, a driving shaft extending into the agitator tank is installed at the output end of the motor, a driving gear is installed on the outer side of the driving shaft, first stirring blades are evenly installed on the outer side of the driving shaft, a solenoid valve is installed at the bottom of the agitator tank, close to one end of the conveying pipe, a guide pipe extending into the conveying pipe is installed at the output end of the solenoid valve, a heat insulation cover is installed on the outer side of the conveying pipe, and an air pump is installed at the top of the heat insulation cover, the utility model discloses a pneumatic control system, including pneumatic control unit, control panel, the input of pneumatic control unit installs the exhaust tube that extends to the conveying pipeline inside, and the output of pneumatic control unit installs the heating pipe that extends to the conveying pipeline inside, first electric heating wire is installed in the outside of heating pipe, hydraulic cylinder is installed to the one end that the conveying pipeline is close to the mounting bracket, hydraulic cylinder's output passes the conveying pipeline, and hydraulic cylinder's output installs the push pedal, the conveying pipeline is kept away from the one end of mounting bracket and is installed the leak protection pipe, control panel is installed to the one end that the conveying pipeline was kept away from to the mounting bracket, control panel's output passes through the input electric connection with pneumatic control unit, first electric heating wire, solenoid valve, second electric heating wire and motor respectively.

Preferably, the injection tube is installed to the bottom of leak protection pipe, and the inside top of leak protection pipe is provided with the spout, the baffle is installed through the slider to the spout, and the one end that the conveying pipeline was kept away from to the baffle installs reset spring, reset spring keeps away from the one end of baffle and is connected with the leak protection union coupling.

Preferably, the bearing is installed to the one end that the conveying pipeline was kept away from at the roof-rack top, and the internally mounted of bearing has the driven shaft that extends to the agitator tank inside, driven gear with driving gear meshing is installed in the outside of driven shaft, and the outside of driven shaft evenly installs second stirring vane.

Preferably, a vacuum shell is arranged on the outer side of the stirring box.

Preferably, an exhaust pipe is installed at one end, close to the material conveying pipe, of the vacuum shell, and a pipe cover is installed at one end, far away from the vacuum shell, of the exhaust pipe.

Preferably, the inlet pipe is installed at the top that control panel one end was kept away from to the agitator tank, and the feeder hopper is installed at the top of inlet pipe, sealed lid is installed at the top of feeder hopper.

Preferably, the first stirring blades are provided with four groups, and the distances between the adjacent first stirring blades are the same.

Compared with the prior art, the utility model has the beneficial effects that:

1. the plastic injection molding machine is provided with the heat shield, the exhaust pipe, the exhaust pump, the heating pipe and the first electric heating wire, when the injection molding machine is used, the exhaust pump pumps out gas in the heat shield, the gas is heated through the first electric heating wire, the heated gas flows into the heat shield again through the heating pipe, the outer side of the conveying pipe can be uniformly heated, the plastic raw material in the conveying pipe can be prevented from being cooled and solidified, and the normal operation of the injection process can be ensured;

2. the plastic injection molding machine is provided with a leakage-proof pipe, an injection pipe, a baffle plate and a return spring, after the plastic injection molding machine is used, the return spring pushes the baffle plate to shield the position of the injection pipe, so that raw materials in the conveying pipe can be prevented from continuously leaking, and the waste of the raw materials is avoided;

3. the plastic injection molding machine is provided with a driving gear, a driving shaft, a motor, a bearing, a driven shaft, a driven gear, a first stirring blade and a second stirring blade, when the plastic injection molding machine is used, the motor drives the driving gear and the first stirring blade to rotate through the driving shaft, the driving gear drives the driven shaft and the second stirring blade to rotate through the driven gear, the driving shaft and the driven shaft are used for stirring, raw materials can be stirred between the first stirring blade and the second stirring blade, so that the raw materials are impacted with each other, the raw materials can be uniformly melted, bubbles in the raw materials can be broken by impact force, and a defoaming effect is achieved;

4. this plastic injection molding machine installs vacuum shell and blast pipe to install second electric heating wire in the outside of agitator tank, second electric heating wire can be to the different positions department heating of agitator tank, can be even with the raw materials heating of agitator tank inside, the inside vacuum of vacuum shell, reducible heat transfer medium, thereby the inside heat loss of reducible agitator tank, thereby reduce the heat waste, be favorable to reducing energy resource consumption.

Drawings

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

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

fig. 3 is a schematic sectional view of the leakage preventing pipe of the present invention.

In the figure: 1. a leakage-proof pipe; 2. a delivery pipe; 3. a heat shield; 4. an air exhaust pipe; 5. an air pump; 6. heating a tube; 7. a first electric heating wire; 8. pushing the plate; 9. a material guide pipe; 10. a hydraulic cylinder; 11. an electromagnetic valve; 12. a vacuum enclosure; 13. an exhaust pipe; 14. a second electric heating wire; 15. a feed pipe; 16. a top frame; 17. a driving gear; 18. a drive shaft; 19. a motor; 20. a bearing; 21. a driven shaft; 22. a driven gear; 23. a first stirring blade; 24. a second stirring blade; 25. a mounting frame; 26. a control panel; 27. an injection tube; 28. a baffle plate; 29. a return spring; 30. a chute; 31. a base; 32. and (4) a stirring box.

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. 1-3, an embodiment of the present invention is shown: a plastic injection molding machine comprises a leakage-proof pipe 1, a material conveying pipe 2, a base 31 and an agitator tank 32, wherein the material conveying pipe 2 is installed at one end of the top of the base 31, an installation frame 25 is installed at the other end of the top of the base 31, the agitator tank 32 is installed at the top of the installation frame 25, a second electric heating wire 14 is installed on the outer side of the agitator tank 32, a top frame 16 is installed at the top of the agitator tank 32, a motor 19 is installed at one end, close to the material conveying pipe 2, of the top frame 16, the type of the motor 19 can be Y90S-2, a driving shaft 18 extending into the agitator tank 32 is installed at the output end of the motor 19, a driving gear 17 is installed on the outer side of the driving shaft 18, first agitating blades 23 are evenly installed on the outer side of the driving shaft 18, an electromagnetic valve 11 is installed at the bottom, close to one end of the material conveying pipe 2, the type of the electromagnetic valve 11 can be QDX1.5-16-0.37, a material guide pipe 9 extending into the material conveying pipe 2 is installed at the output end of the electromagnetic valve 11, a heat shield 3 is arranged on the outer side of the material conveying pipe 2, an air pump 5 is arranged on the top of the heat shield 3, an air pumping pipe 4 extending to the inner part of the material conveying pipe 2 is arranged at the input end of the air pump 5, and the output end of the air pump 5 is provided with a heating pipe 6 extending to the interior of the material conveying pipe 2, the outer side of the heating pipe 6 is provided with a first electric heating wire 7, one end of the material conveying pipe 2 close to the mounting rack 25 is provided with a hydraulic oil cylinder 10, the type of the hydraulic oil cylinder 10 can be JUFAN-HC2, the output end of the hydraulic oil cylinder 10 penetrates through the material conveying pipe 2, and the push pedal 8 is installed to hydraulic cylinder 10's output, and the leak protection pipe 1 is installed to the one end that conveying pipeline 2 kept away from mounting bracket 25, and control panel 26 is installed to the one end that conveying pipeline 2 was kept away from to mounting bracket 25, and control panel 26's output passes through the wire respectively with aspiration pump 5, first electric heating wire 7, solenoid valve 11, second electric heating wire 14 and motor 19's input electric connection.

In this implementation:

further, injection pipe 27 is installed to the bottom of leak protection pipe 1, and the inside top of leak protection pipe 1 is provided with spout 30, spout 30 installs baffle 28 through the slider, and baffle 28 keeps away from the one end of conveying pipeline 2 and installs reset spring 29, reset spring 29 keeps away from the one end of baffle 28 and is connected with leak protection pipe 1, after the use, reset spring 29 promotes baffle 28, make baffle 28 shelter from in injection pipe 27 position department, can prevent that the inside raw materials of conveying pipeline 2 from continuing the seepage, avoid causing the raw materials extravagant.

Further, bearing 20 is installed to the one end of 16 tops on the roof-rack far away from conveying pipeline 2, and bearing 20's internally mounted has the driven shaft 21 that extends to agitator tank 32 inside, driven gear 22 with driving gear 17 meshing is installed in the outside of driven shaft 21, and second stirring vane 24 is evenly installed in the outside of driven shaft 21, in use, motor 19 drives driving gear 17 and first stirring vane 23 through driving shaft 18 and rotates, driving gear 17 drives driven shaft 21 and second stirring vane 24 through driven gear 22 and rotates, stir through driving shaft 18 and driven shaft 21, can stir the raw materials into between first stirring vane 23 and the second stirring vane 24, make raw materials mutual impact, not only can make raw materials hot melt even, still can make the bubble in the raw materials receive the impact force and be broken, play the effect of defoaming.

Further, the vacuum shell 12 is installed on the outside of the stirring box 32, the inside of the vacuum shell 12 is vacuumized, so that the heat transfer medium can be reduced, the heat loss in the stirring box 32 can be reduced, the heat waste can be reduced, and the energy consumption can be reduced.

Further, an exhaust pipe 13 is installed at one end of the vacuum casing 12 close to the material conveying pipe 2, and a pipe cover is installed at one end of the exhaust pipe 13 far away from the vacuum casing 12, so that the worker can firstly communicate the exhaust pipe 13 with external air suction equipment, and the inside of the vacuum casing 12 is pumped to vacuum through the exhaust pipe 13.

Further, the top of the end, far away from the control panel 26, of the stirring box 32 is provided with the feeding pipe 15, the top of the feeding pipe 15 is provided with the feeding hopper, and the top of the feeding hopper is provided with the sealing cover, so that plastic raw materials can be conveniently added into the stirring box 32.

Further, the first agitating blades 23 are provided in four groups, and the distances between adjacent first agitating blades 23 are the same.

The working principle is as follows:

when the device is used, the device is powered on, a worker can firstly communicate the exhaust pipe 13 with external air extraction equipment, the interior of the vacuum shell 12 is vacuumized through the exhaust pipe 13, then the exhaust pipe 13 is covered with a pipe cover, when materials are fed, the worker can add plastic raw materials into the feeding hopper, the raw materials enter the stirring box 32 through the feeding pipe 15, and then the sealing cover on the feeding hopper is covered;

when the plastic raw materials are hot-melted, a worker can start the second electric heating wire 14 and the motor 19 through the control panel 26, the second electric heating wire 14 can heat different positions of the stirring box 32, so that the temperature of different positions in the stirring box 32 can be kept uniform, the raw materials can be heated uniformly, and the plastic raw materials in the stirring box 32 can be hot-melted into a liquid state through heating;

in the hot melting process, the motor 19 drives the driving gear 17 and the first stirring blade 23 to rotate clockwise through the driving shaft 18, the driving gear 17 drives the driven shaft 21 and the second stirring blade 24 to rotate anticlockwise through the driven gear 22, the raw materials can be stirred between the first stirring blade 23 and the second stirring blade 24 through the driving shaft 18 and the driven shaft 21, so that the raw materials are impacted with each other, the raw materials can be uniformly mixed and melted, bubbles in the raw materials can be broken by impact force, and a defoaming effect is achieved;

after hot melting is finished, a worker can respectively start the air extracting pump 5, the first electric heating wire 7 and the electromagnetic valve 11 through the control panel 26, the hot-melted plastic in the stirring box 32 enters the conveying pipe 2 through the material guide pipe 9, the air extracting pump 5 extracts the gas in the heat insulation cover 3 through the air extracting pipe 4, the gas in the heating pipe 6 is heated through the first electric heating wire 7, the heated gas flows into the heat insulation cover 3 again through the heating pipe 6, the gas in the heat insulation cover 3 can flow and can be repeatedly heated, the hot gas in the heat insulation cover 3 can uniformly heat the outer side of the conveying pipe 2, the plastic raw material in the conveying pipe 2 can be prevented from being cooled and solidified, the normal operation of an injection process can be ensured, after a proper amount of raw material is injected into the conveying pipe 2, the worker can close the electromagnetic valve 11 through the control panel 26, preventing the raw materials from entering the conveying pipe 2 and flowing between the push plate 8 and the hydraulic oil cylinder 10 in the injection process;

during injection, staff's accessible control panel 26 starts hydraulic cylinder 10, make hydraulic cylinder 10 promote the inside raw materials of conveying pipeline 2 through push pedal 8, can push into leak protection intraductal 1 with the raw materials inside, raw materials extrusion baffle 28, make baffle 28 atress remove and compress reset spring 29, when baffle 28 moves away from injection pipe 27 position department, the raw materials is injected into the mould through injection pipe 27 in, when stopping injecting, baffle 28 receives the extrusion force of raw materials and reduces, reset spring 29's elastic action makes it promote baffle 28 and removes the restoration, make baffle 28 shelter from in injection pipe 27 position department again, can prevent the inside raw materials seepage of conveying pipeline 2, avoid causing the raw materials extravagant.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the utility model. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Claims (7)

1. The utility model provides a plastic injection molding machine, includes leak protection pipe (1), conveying pipeline (2), base (31) and agitator tank (32), its characterized in that: conveying pipeline (2) is installed to the one end at base (31) top, and mounting bracket (25) are installed to the other end at base (31) top, agitator tank (32) is installed at the top of mounting bracket (25), and second electric heating wire (14) are installed in the outside of agitator tank (32), roof-rack (16) is installed at the top of agitator tank (32), and motor (19) are installed to the one end that roof-rack (16) top is close to conveying pipeline (2), driving shaft (18) that extend to agitator tank (32) inside are installed to the output of motor (19), driving gear (17) are installed in the outside of driving shaft (18), and first stirring vane (23) are evenly installed in the outside of driving shaft (18), solenoid valve (11) are installed to the bottom that agitator tank (32) is close to conveying pipeline (2) one end, and the delivery conduit (9) that extend to conveying pipeline (2) inside are installed to the output of solenoid valve (11), the outer side of the conveying pipe (2) is provided with a heat shield (3), the top of the heat shield (3) is provided with an air pump (5), the input end of the air pump (5) is provided with an air pumping pipe (4) extending to the inner part of the conveying pipe (2), the output end of the air pump (5) is provided with a heating pipe (6) extending to the inner part of the conveying pipe (2), the outer side of the heating pipe (6) is provided with a first electric heating wire (7), one end of the conveying pipe (2) close to the mounting frame (25) is provided with a hydraulic oil cylinder (10), the output end of the hydraulic oil cylinder (10) penetrates through the conveying pipe (2), the output end of the hydraulic oil cylinder (10) is provided with a push plate (8), one end of the conveying pipe (2) far away from the mounting frame (25) is provided with a leakage-proof pipe (1), one end of the mounting frame (25) far away from the conveying pipe (2) is provided with a control panel (26), the output end of the control panel (26) is respectively and electrically connected with the air pump (5), the first electric heating wire (7), the electromagnetic valve (11), the second electric heating wire (14) and the input end of the motor (19) through wires.

2. A plastic injection molding machine as claimed in claim 1, wherein: injection pipe (27) are installed to the bottom of leak protection pipe (1), and the inside top of leak protection pipe (1) is provided with spout (30), baffle (28) are installed through the slider in spout (30), and the one end that conveying pipeline (2) were kept away from in baffle (28) installs reset spring (29), reset spring (29) are kept away from the one end of baffle (28) and are connected with leak protection pipe (1).

3. A plastic injection molding machine as claimed in claim 1, wherein: bearing (20) are installed to the one end of feeder pipeline (2) is kept away from at roof-rack (16) top, and the internally mounted of bearing (20) has driven shaft (21) that extends to agitator tank (32) inside, driven gear (22) with driving gear (17) meshing is installed in the outside of driven shaft (21), and second stirring vane (24) are evenly installed in the outside of driven shaft (21).

4. A plastic injection molding machine as claimed in claim 1, wherein: and a vacuum shell (12) is arranged on the outer side of the stirring box (32).

5. A plastic injection molding machine as claimed in claim 4, wherein: an exhaust pipe (13) is installed at one end, close to the material conveying pipe (2), of the vacuum shell (12), and a pipe cover is installed at one end, far away from the vacuum shell (12), of the exhaust pipe (13).

6. A plastic injection molding machine as claimed in claim 1, wherein: the top that control panel (26) one end was kept away from in agitator tank (32) installs inlet pipe (15), and the top of inlet pipe (15) installs the feeder hopper, sealed lid is installed at the top of feeder hopper.

7. A plastic injection molding machine as claimed in claim 1, wherein: the first stirring blades (23) are provided with four groups, and the distances between the adjacent first stirring blades (23) are the same.

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