Constant-temperature anti-blocking injection molding system

Abstract

The utility model discloses a constant-temperature anti-blocking injection molding system which comprises an injection molding machine, the injection molding machine comprises an injection molding positioning mechanism, an injection molding barrel, an injection molding nozzle, a screw rod, a motor and a molten material heater, the injection molding barrel is connected to the injection molding positioning mechanism, the injection molding nozzle is connected to one end of the injection molding barrel, the screw rod is arranged in the injection molding barrel in a penetrating mode, and one end of the screw rod is connected to the motor; the molten material heater is connected to the outer surface of the injection molding material cylinder; one side of the injection mold base is used for installing a mold, the other side of the injection mold base is provided with a receding groove, the injection mold base is further provided with a positioning hole, an infrared heater and a first ceramic reflecting plate are arranged on the inner wall of the positioning hole, and the first ceramic reflecting plate is located on the side, away from the receding groove, of the infrared heater. According to the utility model, the infrared heater is used for heating the injection molding nozzle, so that the probability of material blockage can be obviously reduced, the first ceramic reflecting plate can effectively reduce unnecessary heat input in a mold area, and the injection molding processing quality is good.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of injection molding system, in particular to a constant temperature anti -blocking injection molding system. BACKGROUND

[0002] Injection molding is a kind of plastic processing method, specifically refers to the molten state plastic raw material pressure injection into the mold forming process, through the mold system to the mold, injection molding system injects molten plastic into the mold and cools to form injection molding product.

[0003] Injection molding system mainly includes driving mechanism, cylinder, screw and motor, in the related art, to improve the injection molding effect, it is usually needed to set up injection molding nozzle at the output end of cylinder, when injection molding, injection molding nozzle is connected to the mold, and the screw injects the molten plastic in the cylinder into the mold cavity, in the process of injection molding, injection molding nozzle is prone to be blocked due to the temperature fluctuation of mold, and the injection molding nozzle blockage will affect the subsequent injection molding processing quality, resulting in the decrease of injection molding qualification rate and low injection molding production efficiency. UTILITY MODEL CONTENT

[0004] The utility model aims at at least one of the technical problems existing in the prior art. To this end, the utility model provides a constant temperature anti-blocking injection molding system, which has good anti-blocking performance, good injection molding processing quality and high production efficiency.

[0005] According to the constant temperature anti-blocking injection molding system provided by the utility model, the injection molding system comprises:

[0006] The injection molding system comprises an injection molding positioning mechanism, an injection molding cylinder, an injection molding nozzle, a screw, a motor and a material melting heater.

[0007] The injection molding nozzle is connected to one end of the injection molding cylinder, and the motor is located at the other end of the injection molding cylinder.

[0008] In the embodiment, the injection molding nozzle is made of aluminum or copper.

[0009] In the embodiment, the first ceramic reflecting plate is provided with a limiting hole matched with the injection molding nozzle, and the limiting hole is used for limiting the injection molding nozzle.

[0010] In the embodiment, the injection molding base is further provided with a second ceramic reflecting plate, and the second ceramic reflecting plate is located on the side of the infrared heater away from the injection molding nozzle.

[0011] In the embodiment, the material melting heater is an electric heater or a hot oil heat conduction pipeline.

[0012] In the embodiment, the injection molding base is provided below with a machine table, the injection molding positioning mechanism comprises a support, an oil cylinder and a guide rail, the injection molding cylinder and the motor are connected to the support, two ends of the oil cylinder are connected to the injection molding base and the support respectively, the guide rail is connected to the machine table, and the support is connected to the guide rail.

[0013] In the embodiment, the oil cylinder and the guide rail are both provided with two groups, the two groups of oil cylinders are located on opposite sides of the injection molding cylinder, the two groups of guide rails are connected to the machine table, and the support is connected to the two groups of guide rails.

[0014] In the embodiment, the injection machine is provided with a protective cover surrounding the material melting heater.

[0015] The embodiment of the utility model has at least the following beneficial effects:

[0016] By arranging the infrared heater in the injection molding base, the injection molding nozzle is heated in the form of infrared radiation, the flowability of the molten plastic in the injection molding nozzle can be effectively ensured, the probability of material blockage can be significantly reduced, the quality of injection molding processing can be effectively improved, the qualified rate of the injection molding products is high, the processing and maintenance operations caused by the material blockage problem can be effectively reduced, the injection molding production efficiency can be effectively improved, and the maintenance cost can be reduced; the infrared radiation generated by the infrared heater is reflected to the side away from the mold through the first ceramic reflecting plate, unnecessary heat input in the mold area can be effectively reduced, the temperature control precision of the molten plastic in the mold during cooling and molding can be ensured, the cooling and molding effect can be effectively improved, the cooling and molding speed can be effectively improved, the injection molding processing quality is good, and the quality of the injection molding products is high; in addition, the infrared heater for heating the injection molding nozzle is separated from the injection machine and connected to the fixed injection molding base, the burden of the injection molding positioning mechanism can be effectively reduced, the stability of the operation of the injection machine can be effectively improved, the service life of the injection molding positioning mechanism is long, the infrared heater separated from the injection machine heats the injection molding nozzle in a non-contact mode, the heating effect can be effectively ensured, the material blockage effect is good, and the production efficiency is high. BRIEF DESCRIPTION OF DRAWINGS

[0017] The above and / or additional aspects and advantages of the utility model will become apparent and more readily appreciated from the following description of the embodiments, with reference to the following drawings, in which:

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the constant-temperature anti-blocking injection molding system of the embodiment of the utility model;

[0019] Figure 2 It is the exploded structural schematic view of the injection molding seat of the constant-temperature anti-blocking injection molding system of the utility model embodiment;

[0020] Figure 3 It is the exploded structural schematic view of the injection molding seat of the constant-temperature anti-blocking injection molding system of the utility model embodiment in another view;

[0021] Figure 4 It is the overhead structural schematic view of the constant-temperature anti-blocking injection molding system of the utility model embodiment;

[0022] Figure 5 It is the cross-sectional structural schematic view along Figure 4 A-A';

[0023] Figure 6 It is the enlarged structural schematic view of B. Figure 5

[0024] Reference signs:

[0025] Injection machine 100, injection positioning mechanism 110, support 111, oil cylinder 112, guide rail 113, injection barrel 120, injection nozzle 130, screw 140, motor 150, material melting heater 160, protective cover 170;

[0026] Injection molding seat 200, accommodation groove 210, positioning hole 220, infrared heater 230, first ceramic reflector plate 240, limiting hole 241, second ceramic reflector plate 250. DETAILED DESCRIPTION

[0027] The embodiments of the utility model are described in detail below, and the examples of the embodiments are shown in the drawings, wherein the same or similar signs represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.

[0028] In the description of the utility model, it should be understood that the orientation description, such as the orientation or position relationship indicated by up, down, left, right, front, back, etc. is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and cannot be understood as indicating or implying that the indicated device or element must have a specific orientation, a specific orientation and operation, therefore, it cannot be understood as limiting the utility model.

[0029] In the description of the utility model, if the line sleeve and the support are described, it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the sequence of indicated technical features.​

[0030] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0031] Injection molding specifically refers to the process of pressing molten plastic raw materials into a mold to form a product. After the mold is closed by a mold clamping system, the injection molding system injects molten plastic into the mold, which then cools and solidifies to obtain the injection-molded product. The injection molding system mainly includes a drive mechanism, barrel, screw, and motor. In related technologies, to improve the injection molding effect, an injection nozzle is usually installed at the output end of the barrel. During injection molding, after the injection nozzle connects to the mold, the screw injects the molten plastic in the barrel into the mold cavity. During the injection molding process, the injection nozzle is prone to clogging due to temperature fluctuations in the mold, especially during cooling and solidification. Clogged injection nozzles will affect the quality of subsequent injection molding processes, leading to a decrease in the injection molding pass rate, requiring frequent line shutdowns for maintenance, and resulting in low injection molding production efficiency.

[0032] Some injection molding systems have attempted to address these issues by improving the heating method of the injection molding machine and adding temperature control devices. However, these solutions are often complex, costly, and fail to effectively solve the temperature control problem at the interface between the injection nozzle and the mold, particularly the heat loss when the injection nozzle connects to the mold and the uneven heat distribution inside the mold. This affects the solidification speed and efficiency of the injection molded products.

[0033] The following is for reference only. Figure 1 To be continued Figure 6 This invention describes a constant-temperature anti-clogging injection molding system with good anti-clogging material performance, good injection molding quality, and high production efficiency.

[0034] Reference Figures 1 to 6 A constant temperature anti-clogging injection molding system according to an embodiment of the present invention includes:

[0035] The injection machine 100 is arranged on one side of the injection mold base 200, and the injection machine 100 comprises an injection positioning mechanism 110, an injection cylinder 120, an injection nozzle 130, a screw rod 140, a motor 150 and a material melting heater 160. The injection cylinder 120 and the motor 150 are connected to the injection positioning mechanism 110. The injection positioning mechanism 110 is used to drive the injection cylinder 120 and the motor 150 to translate synchronously in the horizontal direction. The injection nozzle 130 is connected to one end of the injection cylinder 120. The motor 150 is located at the other end of the injection cylinder 120. The screw rod 140 is arranged in the injection cylinder 120. The end of the injection cylinder 120 away from the injection nozzle 130 is rotationally connected to the screw rod 140 through a bearing. One end of the screw rod 140 is connected to the driving end of the motor 150. The material melting heater 160 is connected to the outer surface of the injection cylinder 120. The injection cylinder 120 can be heated through the material melting heater 160.

[0036] The injection mold base 200 is arranged on one side of the injection machine 100. The injection mold is located on the side of the injection cylinder 120 close to the injection nozzle 130. The side of the injection mold base 200 away from the injection machine 100 is used to install the mold. The other side of the injection mold base 200 is provided with a giving-up slot 210 for giving up space for the injection cylinder 120 and the surface material melting heater 160. The injection mold base 200 is also provided with a positioning hole 220 for arranging the injection nozzle 130. One end of the positioning hole 220 is connected to the bottom of the giving-up slot 210. The other end of the positioning hole 220 penetrates through the side of the injection mold base 200 away from the injection machine 100, so that the mold cavity of the mold installed in the injection mold base 200 can communicate with the positioning hole 220. The injection nozzle 130 can be docked into the cavity of the mold during injection. The inner wall of the positioning hole 220 is provided with an infrared heater 230 and a first ceramic reflecting plate 240. The first ceramic reflecting plate 240 is located on the side of the infrared heater 230 away from the giving-up slot 210. The first ceramic reflecting plate 240 is used to reflect the infrared radiation generated by the infrared heater 230 away from the mold, which can significantly reduce the infrared radiation reaching the mold. During cooling and molding, the solidification molding speed and efficiency of the molten plastic in the mold can be effectively ensured. The ceramic reflecting plate is made of ceramic that can reflect infrared rays, which can efficiently reflect infrared rays, thereby effectively controlling the heat transfer range and accurately controlling the heat.

[0037] The infrared heater 230 is arranged in the injection mold base 200 to heat the injection nozzle 130 in a non-contact manner through infrared radiation, which innovatively solves the problem of heat management of the injection nozzle 130 in the mold area, effectively ensures the flowability of the molten plastic inside the injection nozzle 130, significantly reduces the probability of blockage, effectively improves the quality of injection molding, and produces high-quality injection products. Moreover, it can effectively reduce the maintenance operation caused by the blockage problem, ensure the continuity and stability of the injection production, effectively improve the injection production efficiency, and reduce the maintenance cost; the first ceramic reflector 240 reflects the infrared radiation generated by the infrared heater 230 to the side away from the mold, which can effectively reduce unnecessary heat input in the mold area, ensure the temperature control accuracy of the molten plastic in the mold during cooling and molding, effectively improve the cooling and molding effect, and improve the cooling and molding speed with high production efficiency; in addition, the infrared heater 230 for heating the injection nozzle 130 is separated from the injection machine 100 and arranged on the fixed injection mold base 200, and the injection positioning mechanism 110 only needs to drive the injection barrel 120 and related structures thereon, which can effectively reduce the burden of the injection positioning mechanism 110, thereby effectively improving the stability of the operation of the injection machine 100, prolonging the service life of the injection positioning mechanism 110. Even if a gap can be provided between the injection nozzle 130 and the infrared heater 230 for the movement of the injection nozzle 130, the probability of collision between the infrared heater 230 and the injection nozzle 130 can be significantly reduced, and the infrared heater 230 separated from the injection machine 100 can heat the injection nozzle 130 in a non-contact manner, which can effectively ensure the heating effect, prevent blockage, improve production efficiency, and facilitate the disassembly and repair of the injection nozzle 130 due to the separation of the infrared heater 230 and the injection nozzle 130. Even if the injection nozzle 130 is blocked due to some uncontrollable factors, the efficiency of troubleshooting can be effectively improved to ensure production efficiency.

[0038] It can be understood that the injection nozzle 130 is an aluminum or copper nozzle structure, and both aluminum and copper have good thermal conductivity. The infrared heater 230 propagates to the injection nozzle 130 through infrared radiation, heats the injection nozzle 130, and the plastic inside the injection nozzle 130 is heated and maintained, which can effectively ensure the flowability of the molten plastic in the injection nozzle 130 and reduce the risk of blockage. The metal responds very quickly to infrared radiation, and the infrared heater 230 can efficiently heat the metal material to effectively improve the heating efficiency of the injection nozzle 130. Preferably, the surface of the injection nozzle 130 is provided with a rough polishing layer, which can effectively improve the heating effect of the infrared heater 230 on the injection nozzle 130 and improve the anti-blocking performance by polishing the surface of the injection nozzle 130.

[0039] Specifically, the surface of the injection nozzle 130 is provided with a dark coating, which can effectively improve the heat absorption efficiency of the injection nozzle 130, thereby improving the heating effect of the injection nozzle 130 and the anti-blocking performance.

[0040] It can be understood that the first ceramic reflecting plate 240 is provided with a limiting hole 241 matched with the injection nozzle 130, that is, the first ceramic reflecting plate 240 is annular, the limiting hole 241 of the first ceramic reflecting plate 240 is matched with the shape and size of the injection nozzle 130, and the limiting hole 241 is used for positioning the injection nozzle 130. During injection molding, the injection positioning mechanism 110 drives the injection barrel 120 to translate close to the injection mold base 200, the injection nozzle 130 passes through the positioning hole 220 and the limiting hole 241 and is connected to the mold, which can reliably position the injection nozzle 130, thereby effectively improving the stability of the overall injection molding system structure.

[0041] It can be understood that the injection mold base 200 is also provided with a second ceramic reflecting plate 250, which is located on the side of the infrared heater 230 away from the injection nozzle 130. The second ceramic reflecting plate 250 can reflect the infrared radiation emitted by the infrared heater 230 to the injection nozzle 130, thereby improving the utilization rate of energy and the anti-blocking performance of the injection nozzle 130.

[0042] It can be understood that the melting heater 160 is an electric heater or a hot oil heat conduction pipeline. The electric heater is a device that converts electrical energy into heat energy, such as electric heating wire, electric heating sheet, electric heating tube, etc. The hot oil heat conduction pipeline is a pipeline structure for circulating heat conduction oil to form a heating effect. The heated heat conduction oil is transported to the hot oil heat conduction pipeline and exchanges heat with the injection barrel 120, and then is output from the hot oil heat conduction pipeline and recycled by the recycling device. The heated heat conduction oil is retransported to the hot oil heat conduction pipeline to form a hot oil circulation effect.

[0043] It can be understood that the injection mold base 200 is provided below a machine table, the injection positioning mechanism 110 includes a support 111, an oil cylinder 112 and a guide rail 113, the driving direction of the oil cylinder 112 is parallel to the extension direction of the guide rail 113, the injection barrel 120 and the motor 150 are connected to the support 111, and the two ends of the oil cylinder 112 are connected to the injection mold base 200 and the support 111 respectively.

[0044] Specifically, the shell of the oil cylinder 112 is connected to the support 111, the driving end of the oil cylinder 112 is connected to the injection mold base 200, the guide rail 113 is connected to the machine table, the support 111 is connected to the guide rail 113, the guide rail 113 includes a track and a sliding block, the sliding block is slidingly connected to the track, the track is connected to the machine table, and the support 111 is connected to the sliding block, so that the support 111 can slide relative to the machine table.

[0045] It can be understood that the oil cylinder 112 and the guide rail 113 are both provided with two groups, the two groups of oil cylinders 112 are respectively located at the opposite sides of the injection barrel 120, the two groups of guide rails 113 are connected to the machine table, the support 111 is connected to the two groups of guide rails 113, the two groups of oil cylinders 112 are respectively located at the opposite sides of the injection barrel 120, and the arrangement mode can ensure that the injection machine 100 can provide balanced driving force during the injection plastic action, so that mechanical failure or precision decline caused by uneven force can be avoided. The two groups of guide rails 113 are connected to the machine table, and the support 111 is connected to the two groups of guide rails 113, and the connection of the guide rail 113 and the machine table ensures the stability of the structure of the entire injection machine 100.

[0046] It can be understood that the injection machine 100 includes the protective cover 170 surrounding the material melting heater 160, a protection structure is formed outside the material melting heater 160 through the protective cover 170, the operation personnel can be effectively prevented from being injured by accidentally touching the material melting heater 160, and the safety performance of the injection system can be effectively improved.

[0047] Although the embodiments of the utility model have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and purposes of the utility model, and the scope of the utility model is defined by the claims and the equivalents thereof.

Claims

1. A constant temperature anti-blocking injection molding system, characterized by, The injection machine (100) comprises an injection positioning mechanism (110), an injection cylinder (120), an injection nozzle (130), a screw rod (140), a motor (150) and a material melting heater (160), the injection cylinder (120) is connected to the injection positioning mechanism (110), the injection positioning mechanism (110) is used to drive the injection cylinder (120) to translate in the horizontal direction, the injection nozzle (130) is connected to one end of the injection cylinder (120), the motor (150) is located at the other end of the injection cylinder (120), the screw rod (140) is arranged in the injection cylinder (120), one end of the screw rod (140) is connected to the driving end of the motor (150), and the material melting heater (160) is connected to the outer surface of the injection cylinder (120). The injection mold base (200) is arranged on one side of the injection machine (100), one side of the injection mold base (200) is used to mount a mold, the other side of the injection mold base (200) is provided with a position giving slot (210) for giving a position to the injection cylinder (120), the injection mold base (200) is further provided with a positioning hole (220) for arranging the injection nozzle (130), one end of the positioning hole (220) is connected to the slot bottom of the position giving slot (210), and the inner wall of the positioning hole (220) is provided with an infrared heater (230) and a first ceramic reflection plate (240), the first ceramic reflection plate (240) is located on the side of the infrared heater (230) away from the position giving slot (210). The injection nozzle (130) is made of aluminum or copper.

2. The constant temperature anti-blocking injection molding system of claim 1, wherein, The first ceramic reflection plate (240) is provided with a limiting hole (241) matched with the injection nozzle (130), and the limiting hole (241) is used to limit the injection nozzle (130).

3. The constant temperature anti-blocking injection molding system of claim 1, wherein, The injection mold base (200) is further provided with a second ceramic reflection plate (250), and the second ceramic reflection plate (250) is located on the side of the infrared heater (230) away from the injection nozzle (130).

4. The constant temperature anti-blocking injection molding system of claim 1, wherein, The material melting heater (160) is an electric heater or a hot oil heat conduction pipeline.

5. The constant temperature anti-blocking injection molding system of claim 1, wherein, The injection mold base (200) is arranged below a machine table, the injection positioning mechanism (110) comprises a support (111), an oil cylinder (112) and a guide rail (113), the injection cylinder (120) and the motor (150) are connected to the support (111), two ends of the oil cylinder (112) are connected to the injection mold base (200) and the support (111) respectively, the guide rail (113) is connected to the machine table, and the support (111) is connected to the guide rail (113).

6. The constant temperature anti-blocking injection molding system of claim 1, wherein, The oil cylinder (112) and the guide rail (113) are both provided with two groups, the two groups of oil cylinders (112) are located on opposite sides of the injection cylinder (120), the two groups of guide rails (113) are connected to the machine table, and the support (111) is connected to the two groups of guide rails (113).

7. The constant temperature anti-blocking injection molding system of claim 6, wherein, ​ 8. The constant temperature anti-blocking injection molding system of claim 1, wherein, The injection machine (100) can include a protective cover (170) surrounding the melt heater (160).

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