Anti-adhesion injection molding machine heating charging barrel

Abstract

The utility model discloses an anti-adhesion injection molding machine heating charging barrel which comprises a shell, a charging barrel liner and a screw rod, one side of the top of the shell is provided with a feed port, the shell is internally provided with a heat preservation layer, the heat preservation layer is internally provided with a charging barrel, the outer surface of the charging barrel is provided with an induction heating coil, and the induction heating coil is provided with an induction heating coil. A charging barrel inner container is arranged in the charging barrel, a hinge is connected to the side, away from a feeding port, of a shell, a discharging port is connected to one side of the hinge, a threaded rod is connected to the center of the other side of the shell, a protection box is connected to the outer surface of the shell, and a motor is connected to the interior of the protection box. A rotating shaft of the motor is connected with the screw, internal materials are heated in the mode that the induction heating coil is wound around the charging barrel, higher energy conversion efficiency is achieved, heat loss can be reduced through wrapping of the heat preservation layer, meanwhile, the inner wall of the charging barrel can be kept smooth all the time in the mode that the detachable charging barrel inner container is arranged, and the service life of the charging barrel is prolonged. And material adhesion is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding machines, in particular to an anti-adhesion heating barrel of an injection molding machine. Background Art

[0002] Injection molding machines play an important role in modern industrial production as an important equipment for making plastic products. The barrel of an injection molding machine is usually called a heating barrel. It is one of the indispensable core components of an injection molding machine. Its main function is to heat the plastic raw material to make it reach a suitable molten state so that it can be injected into the mold to form the desired product shape.

[0003] Patent No. CN102452155A describes an internally heated injection molding barrel, comprising a barrel body, a hopper, a hole for accommodating a heating rod, and a nozzle. The hopper is located above the rear end of the barrel body, a hole for accommodating the heating rod is formed in the barrel wall, and the nozzle is connected to the front end of the barrel body. The internally heated injection molding barrel described in this patent has a simple structure and low manufacturing cost. The hole for the heating rod in the inner wall minimizes heat loss, contributing to energy conservation and environmental protection.

[0004] However, the heating method of the injection molding machine barrel described in the patent uses a heating rod for heating, and there is no means to reduce heat loss on the inner wall of the barrel. The heating energy consumption is high, and the barrel dissipates heat quickly, which is not conducive to temperature uniformity and energy saving. At the same time, there is no means to clean the inner wall of the barrel, making it difficult to maintain the smoothness of the inner wall of the heated barrel during use, thereby causing plastic to stick. Therefore, in view of this, the existing structure and deficiencies are studied and improved, and an anti-sticking injection molding machine heating barrel is proposed to achieve a more practical purpose. Utility Model Content

[0005] The purpose of the utility model is to provide an anti-sticking heating barrel for an injection molding machine, so as to solve the problems proposed in the above-mentioned background technology that the heating rod of the above-mentioned injection molding machine consumes too much energy during use, the barrel lacks heat protection, and carbides are formed on the inner wall of the heating barrel during use, which destroys the smoothness of the inner wall and causes the material to stick in the heating barrel.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an anti-adhesion injection molding machine heating barrel, comprising an outer shell, a barrel liner and a screw, characterized in that: a feed port is provided on one side of the top of the outer shell, an insulation layer is provided inside the outer shell, a barrel is provided inside the insulation layer, an induction heating coil is provided on the outer surface of the barrel, a barrel liner is provided inside the barrel, a hinge is connected to the side of the outer shell away from the feed port, a discharge port is connected to one side of the hinge, and the discharge port is connected to the outer shell through the hinge, a screw is connected at the center of the other side of the outer shell, a protective box is connected to the outer surface of the outer shell, a motor is connected to the inside of the protective box, and the rotating shaft of the motor is connected to the screw.

[0007] Furthermore, the inner surface of the barrel is provided with a slide groove, and there are four groups of slide grooves, which are evenly arranged on the inner surface of the barrel. The outer surface of the barrel inner liner is provided with a slider, and there are four groups of sliders, which are connected to the slide grooves.

[0008] Furthermore, a buckle is provided on one side of the discharge port, a sealing gasket is provided at the inner center of the buckle, and a long-handled screw is connected to one side of the buckle.

[0009] Furthermore, the discharge port is conical in shape, and can be opened by rotating along the vertical direction of the shell through the hinge.

[0010] Furthermore, a temperature sensor is provided on a side of the shell away from the discharge port, and the temperature sensor is connected to the interior of the barrel liner.

[0011] Compared with the prior art, the beneficial effects of the present invention are as follows: the anti-adhesion injection molding machine heating barrel adopts an induction heating coil wrapped around the barrel to heat the internal material, which has higher energy conversion efficiency, and can reduce heat loss by wrapping the insulation layer. At the same time, by providing a detachable barrel liner, the inner wall of the barrel can always remain smooth to prevent material adhesion. The specific contents are as follows:

[0012] A barrel is provided inside the shell, and an induction heating coil is wound on the outer surface of the barrel. The induction heating coil is connected to the circuit to directly provide heating for the barrel, which can heat the barrel faster and reduce energy loss. A thermal insulation layer is provided on the outside of the induction heating coil. The thermal insulation layer can effectively reduce the heat generated by the induction heating coil from being dissipated into the environment, thereby improving thermal efficiency and maintaining temperature stability. A detachable barrel liner is provided in the barrel, and a slider is provided on the outer surface of the barrel liner, which can be positioned, assembled and disassembled along the slide groove on the inner surface of the barrel, so that the inner wall of the barrel can be cleaned after use to prevent adhesion caused by reduced smoothness of the inner wall of the barrel. At the same time, it is convenient for staff to maintain. A temperature sensor is provided on one side of the shell, which can observe the temperature in the barrel in real time, prevent adhesion due to excessively high temperature, and display the internal temperature intuitively. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the main structure of an anti-adhesion heating barrel of an injection molding machine according to the present invention;

[0014] Figure 2 This is a side structural diagram of an anti-adhesion heating barrel of an injection molding machine according to the present invention;

[0015] Figure 3 The utility model is a schematic diagram of the local structure of an anti-adhesion heating barrel of an injection molding machine.

[0016] In the figure: 1. Outer shell; 2. Insulation layer; 3. Induction heating coil; 4. Barrel; 5. Barrel liner; 6. Screw; 7. Protective box; 8. Feed port; 9. Motor; 10. Discharge port; 11. Hinge; 12. Buckle; 13. Sealing gasket; 14. Long-handled screw; 15. Slider; 16. Slide; 17. Temperature sensor. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0018] See also Figure 1 - Figure 3The utility model provides a technical solution: an anti-adhesion injection molding machine heating barrel, comprising an outer shell 1, a barrel liner 5 and a screw 6. A feed port 8 is provided on one side of the top of the outer shell 1. The feed port 8 is made of stainless steel, so that the material can smoothly enter the interior of the barrel liner 5. An insulation layer 2 is provided inside the outer shell 1. The insulation layer 2 is a refractory ceramic material with good chemical stability and strong wear resistance, which is suitable for long-term use. A barrel 4 is provided inside the insulation layer 2. The barrel 4 is made of metal material. The outer surface of the barrel 4 is wound with an induction heating coil 3. The induction heating coil 3 converts three-phase alternating current into high-frequency, low-voltage and high-current. When this current passes through the coil, a high-speed changing magnetic field is generated. The internal barrel 4 is placed in this magnetic field. The surface of the barrel 4 cuts the magnetic lines of force to generate eddy currents, thereby heating the material inside the barrel 4. The inner surface of the barrel 4 is provided with a slide groove 16. The slide groove 16 is There are four groups evenly arranged, which serve to fix the barrel liner 5. The barrel liner 5 is connected to the barrel 4 through a slider 15. The barrel liner 5 is made of metal material and has thermal conductivity. It can be removed from the inside of the shell 1 through the discharge port 10 set on one side of the shell 1, so that the barrel liner 5 can be cleaned to prevent the material from sticking. The discharge port 10 is a conical metal body, which is installed on the shell 1 through a hinge 11. A buckle 12 is provided at the bottom of the discharge port 10, and a sealing gasket 13 is provided in the middle of the buckle 12. The sealing gasket 13 is made of soft material and serves to strengthen the sealing of the buckle 12 when the discharge port 10 is closed. The discharge port 10 locks the buckle 12 through a long-handled screw 14 to ensure the integrity of the shell 1 during use. A circular discharge window is provided on the top of the discharge port 10. When the material is heated, stirred and melted, it can be extruded through the discharge window.

[0019] A screw 6 is provided at the inner center of the outer shell 1. The screw 6 is a metal rod body, which plays the role of stirring the material to accelerate the melting. A motor 9 is connected to one side of the screw 6. The motor 9 plays the role of driving the screw 6 to rotate. The motor 9 is placed in a protective box 7. The protective box 7 is a metal box body, which can protect the motor 9 and the rotating shaft from the influence of impurities, thereby extending the service life. A temperature sensor 17 is provided at the upper end of the side of the outer shell 1 close to the protective box 7. The model of the temperature sensor 17 is PT100. The temperature sensor 17 is connected to the inside of the barrel liner 5 to monitor the internal temperature of the barrel liner 5, so that workers can see the temperature intuitively to prevent burns during operation.

[0020] Working principle: When using an anti-adhesion injection molding machine to heat the barrel, the plastic particles are poured into the barrel liner 5 through the feed port 8. The barrel liner 5 is fixed inside the barrel 4. The induction heating coil 3 wrapped around the outer surface of the barrel 4 generates eddy current by introducing current into the barrel 5, so that the barrel 4 generates heat to heat the material inside. This heating method has a high heat conversion rate, low energy loss, and is more energy-efficient. At the same time, the equipment has a long life and low maintenance cost, which is also beneficial to reducing consumption. The induction heating coil 3 is wrapped with an insulation layer 2. The insulation layer 2 can prevent the heat generated by the induction heating coil 3 from dissipating during operation, and concentrate the heat on the barrel 4. At the same time, it can also play a role The induction heating coil 3 is protected by the motor 9, and the screw 6 is started by the motor 9 to stir the heated material while heating, so that it is fully fused and discharged to the designated position through the discharge port 10 arranged on one side of the shell 1. When the project is completed, the discharge port 10 is opened by the hinge 11 connected to one side of the discharge port 10 and the buckle 12 arranged on the other side, and the barrel liner 5 is taken out for cleaning through the slide groove 16 arranged on the inner surface of the barrel 4 to remove the material remaining on the inner wall during work and prevent the occurrence of adhesion. At the same time, it can ensure the smoothness of the inner wall, effectively extend the service life of the barrel 4, and facilitate the inspection and maintenance of the staff, saving maintenance costs.

Claims

1. An anti-adhesion heating barrel for an injection molding machine, comprising a housing (1), a barrel liner (5) and a screw (6), characterized in that: A feed port (8) is provided on one side of the top of the shell (1), a heat-insulating layer (2) is provided inside the shell (1), a barrel (4) is provided inside the heat-insulating layer (2), an induction heating coil (3) is provided on the outer surface of the barrel (4), a barrel liner (5) is provided inside the barrel (4), a hinge (11) is connected to the side of the shell (1) away from the feed port (2), a discharge port (10) is connected to one side of the hinge (11), and the discharge port (10) is connected to the shell (1) through the hinge (11), a screw (6) is connected to the center of the other side of the shell (1), a protective box (7) is connected to the outer surface of the shell (1), a motor (9) is connected to the inside of the protective box (7), and the rotating shaft of the motor (9) is connected to the screw (6).

2. The anti-adhesion heating barrel of an injection molding machine according to claim 1, characterized in that: The inner surface of the barrel (4) is provided with a slide groove (16), and the slide grooves (16) are provided in four groups and are evenly arranged on the inner surface of the barrel (4). The outer surface of the barrel liner (5) is provided with a slider (15), and the slider (15) is provided in four groups, and the sliders (15) are connected to the slide grooves (16).

3. The anti-adhesion heating barrel of an injection molding machine according to claim 1, characterized in that: A buckle (12) is provided on one side of the discharge port (10), a sealing gasket (13) is provided at the inner center of the buckle (12), and a long-handled screw (14) is connected to one side of the buckle (12).

4. The anti-adhesion heating barrel of an injection molding machine according to claim 1, characterized in that: The discharge port (10) is conical in shape, and can be opened by rotating along the vertical direction of the housing (1) via the hinge (11).

5. The anti-adhesion heating barrel of an injection molding machine according to claim 1, characterized in that: A temperature sensor (17) is provided on a side of the outer shell (1) away from the discharge port (10), and the temperature sensor (17) is connected to the interior of the barrel liner (5).

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