Three-color injection molding machine

Abstract

The utility model relates to the technical field of injection molding machines, and provides a three-color injection molding machine which comprises a sealed temperature conducting sheet, a temperature sensor for detecting temperature is fixedly mounted at one end of the sealed temperature conducting sheet, and an injection molding sealing plate for sealing an injection molding cavity is arranged on one side of the temperature sensor; the injection molding device has the advantages that the sealing temperature conducting sheet for temperature transmission is arranged in the injection molding cavity for injection molding of materials and transmits the temperature of the materials to the temperature sensor, the temperature sensor is used for detecting the temperature of the injection-molded materials, and the injection molding sealing plate is controlled to move according to data of temperature detection; the injection molding sealing plate can seal the injection molding cavity after materials are injected, the position of the materials in the injection molding cavity is detected through the laser distance measuring sensor, meanwhile, the high-pressure pump unit is controlled to pump high-pressure gas into the injection molding cavity through the gas guide ring groove to extrude the materials, and residues of the materials in the injection molding cavity are reduced; the material utilization rate is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to injection molding machine technical field especially relates to a three -color injection molding machine. BACKGROUND

[0002] With the development of society, injection molding machine is used more and more widely. Injection molding machine is also known as injection molding machine or injection machine, it is the main molding equipment of thermoplastic or thermosetting plastic and is made into various shapes of plastic products by using plastic molding die, three -color injection molding machine is through the multiple injection device and colorant supply system on a injection molding machine, different color plastic material is injected into the mold at the same time, so that the molded plastic product has multiple colors. With the development of science and technology, more three -color injection molding machines are put into practical application, people can realize multiple colors or multiple materials with different hardness on the same injection molding piece on three -color injection molding machine, the production efficiency is higher, and the finished product quality is better.

[0003] But the inside of injection port is easy to remain colorant in the process of injection of the existing three -color injection molding machine, affect the proportion of colorant, easy to waste colorant, increase the injection cost. CONTENT OF THE UTILITY MODEL

[0004] Therefore, the utility model aims at providing a three -color injection molding machine to solve the problems mentioned in the background art and overcome the deficiencies in the prior art.

[0005] In order to realize the above-mentioned purpose, the utility model one aspect of embodiment provides a three -color injection molding machine, including the injection molding frame of fixed support, the inside fixed mounting of injection molding frame carries out the central processing unit of automatic control, the central processing unit signal connection carries out the colorant supply system of multiple colorant supply, the one end fixed mounting of colorant supply system has the injection head of injection colorant, the below of injection head is provided with the injection mold of carrying out injection, the injection mold is opened and has a plurality of injection cavities that carry out injection, the inside fixed mounting of injection cavity has the sealed temperature guide sheet that detects the temperature of material, the one end fixed mounting of sealed temperature guide sheet has the temperature sensor that detects the temperature, the temperature sensor signal connection carries out the timing module that counts, the one side of temperature sensor is provided with the injection sealing plate that closes injection cavity, the inside fixed mounting of injection sealing plate has the laser ranging sensor that detects the material, the circumference of laser ranging sensor is provided with the gas guide ring groove of conveying high pressure gas, the one end fixed mounting of gas guide ring groove has the high pressure pump unit that generates high pressure gas.

[0006] It is preferred that the injection head is fixedly installed at the top end of the injection molding frame, the injection mold is fixedly installed inside the injection molding frame, and the bottom of the injection cavity is communicated with a mold cavity formed in the inside of the injection mold.

[0007] The injection molding machine frame provides a stable installation foundation for each component, ensuring the stability of the equipment during the injection molding process. The central processor, as the control core, is connected to the colorant supply system, temperature sensor, timing module, electric telescopic rod, high-pressure pump unit, and other components to achieve precise control over the entire injection molding process. The central processor uses pre-set programs and algorithms to coordinate the work of each component based on feedback data from the temperature sensor and time information from the timing module, ensuring that different colors of colorant are injected in the correct order, proportion, and time to ensure the stability and consistency of product quality. The colorant supply system is connected to the central processor and can accurately control the supply of multiple colorants according to the instructions of the central processor. The injection head is connected to the colorant supply system and is responsible for accurately injecting different colors of colorant into the injection cavity of the injection mold. The number, shape, and layout of the injection cavity are determined according to the design requirements of the product. The mold cavity is connected to the bottom of the injection cavity to provide the final molding shape for the injection molded product. The opening and closing mechanism of the mold is connected to the central processor and can accurately open and close the mold under the control of the central processor, ensuring the smooth progress of the injection molding process and improving production efficiency and product quality.

[0008] According to any of the above solutions, the temperature sensor is fixedly installed inside the injection mold, the size of the sealing temperature guide sheet is larger than the size of the temperature sensor, and the sealing temperature guide sheet is fixedly installed inside the injection mold.

[0009] According to the above technical solution: the sealing temperature guide sheet is installed inside the injection cavity and covers the temperature sensor to seal it. The sealing temperature guide sheet is made of a material with good thermal conductivity, which can quickly transfer the temperature of the material in the injection cavity to the temperature sensor, ensuring that the temperature sensor can accurately measure the temperature of the material. By indirectly contacting the material through the sealing temperature guide sheet, direct erosion and damage of the temperature sensor by the material are avoided, ensuring the stability and safety of temperature detection. The temperature sensor is connected to the central processor and transmits real-time temperature data to the central processor. The central processor judges the injection state of the material according to the pre-set temperature range to adjust the injection process parameters in time, ensuring the normal progress of the injection process and the stability of the product quality.

[0010] According to any of the above solutions, the injection sealing plate includes an electric telescopic rod connected to the central processor and a sealing plate that closes the injection cavity. The electric telescopic rod is fixedly installed inside the injection mold, and one end of the electric telescopic rod is fixedly installed with a sealing plate that moves inside the injection mold.

[0011] Adopt above described technical scheme: electric telescopic rod is under the control of central processing unit, drive closed plate to move in injection mold, when needing to close injection cavity, closed plate is under the push of electric telescopic rod and tightly fits injection cavity port, form good sealing effect, prevent material leakage, the laser ranging sensor of closed plate bottom installation can real-time detection injection cavity inside material's position height, provide important feedback information for central processing unit, so as to control injection process and high-pressure gas injection timing, ensure the quality of injection product and the stability of production process.

[0012] It is preferred from any of the above solutions that the laser ranging sensor is fixedly installed at the bottom of the closed plate, and a diameter of the laser ranging sensor is less than an inner diameter of the gas guide ring groove.

[0013] It is preferred from any of the above solutions that an outer diameter of the gas guide ring groove is less than an inner diameter of the injection cavity, and one end of the gas guide ring groove is communicated with a gas guide cavity formed in the closed plate.

[0014] Adopt above described technical scheme: laser ranging sensor will measure data real-time transmission to central processing unit, and central processing unit determines whether the material reaches the preset filling height according to the data, and then determines whether to start the high-pressure pump set, the gas guide ring groove makes the high-pressure gas uniformly act on the material surface, and under the drive of the high-pressure pump set, the high-pressure gas is delivered into the injection cavity to extrude the material, so as to ensure that the material fully fills the model cavity, reduce the material residue, and improve the material utilization rate.

[0015] It is preferred from any of the above solutions that the high-pressure pump set comprises a high-pressure air pump connected with the central processing unit and a gas guide hose for conveying gas, the high-pressure air pump is fixedly installed at the top end of the injection mold, one end of the high-pressure air pump is fixedly installed with the gas guide hose fixedly installed with the closed plate, and the gas guide hose is communicated with the gas guide cavity.

[0016] Adopt above described technical scheme: when the central processing unit determines that the material needs to be extruded according to the data of the laser ranging sensor, the high-pressure air pump is controlled to start, the high-pressure gas enters the gas guide ring groove through the gas guide hose and the gas guide cavity, and then uniformly acts on the material surface, so as to compact the material and fill every corner of the model cavity, improve the density and quality of the injection product, reduce the material residue in the injection cavity, and reduce the production cost.

[0017] Compared with the prior art, the utility model has the advantages and beneficial effects that:

[0018] 1. The temperature of the material is transmitted to the temperature sensor by the sealed temperature guide sheet arranged in the injection cavity of the injection material, the temperature of the injection material is detected by the temperature sensor, and the injection sealing plate is controlled to move according to the temperature detection data, so that the injection sealing plate can seal the injection cavity after the material is injected, and the material position in the injection cavity is detected by the laser ranging sensor, and the high-pressure pump set is controlled to pump high-pressure gas into the injection cavity through the gas guide ring groove to extrude the material, reduce the residue of the material in the injection cavity, improve the utilization rate of the material, and reduce resource waste.

[0019] 2. The temperature sensor is sealed by the sealed temperature guide sheet, so that the temperature sensor can detect the temperature of the material while avoiding contact with the material, which can effectively prevent the temperature sensor from being damaged and improve the stability and safety of temperature detection. BRIEF DESCRIPTION OF DRAWINGS

[0020] The above and / or additional aspects and advantages of the present application will become apparent and more readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

[0021] Figure 1 is a structural schematic view according to an embodiment of the present application;

[0022] Figure 2 is a partial structural schematic view according to an embodiment of the present application;

[0023] Figure 3 is a structural schematic view of an injection sealing plate according to an embodiment of the present application;

[0024] Figure 4 is a partial cross-sectional structural schematic view of an injection mold according to an embodiment of the present application;

[0025] Wherein: 1-injection machine frame, 2-injection head, 3-injection mold, 4-injection cavity, 5-sealed temperature guide sheet, 6-temperature sensor, 7-injection sealing plate, 71-electric telescopic rod, 72-closing plate, 8-laser ranging sensor, 9-gas guide ring groove, 10-high pressure pump set, 101-high pressure gas pump, 102-gas hose, 11-mold cavity. DETAILED DESCRIPTION

[0026] The present application will be further described below in conjunction with the drawings, but the protection scope of the present application is not limited to the following description.

[0027] As Figures 1-4As shown, the utility model discloses a three -color injection molding machine, including the fixed support of injection molding frame 1, the inside fixed mounting of injection molding frame 1 has the central processing unit of automation control, central processing unit signal connection has the colorant supply system of multiple colorant supply, the one end fixed mounting of colorant supply system has the injection head 2 of injection molding colorant, the below of injection head 2 is provided with the injection molding mold 3 of injection molding, injection molding mold 3 is provided with several injection molding cavities 4 of injection molding, the inside fixed mounting of injection molding cavity 4 has the sealed temperature -sensing sheet 5 of material temperature detection, the one end fixed mounting of sealed temperature -sensing sheet 5 has the temperature sensor 6 of temperature detection, temperature sensor 6 signal connection has the timing module of timing, the one side of temperature sensor 6 is provided with the injection molding sealing plate 7 of injection molding cavity 4 closed, the inside fixed mounting of injection molding sealing plate 7 has the laser ranging sensor 8 of material detection, the circumference of laser ranging sensor 8 is provided with the gas guide ring groove 9 of conveying high pressure gas, the one end fixed mounting of gas guide ring groove 9 has the high pressure pump unit 10 of generating high pressure gas.

[0028] It is preferred that the injection head 2 is fixedly installed at the top end of the injection molding frame 1, the injection molding mold 3 is fixedly installed inside the injection molding frame 1, and the bottom of the injection molding cavity 4 is communicated with a model cavity 11 formed inside the injection molding mold 3.

[0029] The technical scheme has the following beneficial effects: the injection molding frame 1 provides a stable installation basis for each component, ensuring the stability of the equipment during the injection molding process; the central processing unit, as the control core, is signal-connected with the colorant supply system, the temperature sensor 6, the timing module, the electric telescopic rod 71, the high pressure pump unit 10 and other components, realizing accurate control of the entire injection molding process; the central processing unit coordinates the work of each component according to the feedback data of the temperature sensor 6 and the time information of the timing module through a preset program and algorithm, ensuring that colorants of different colors are injected in the correct order, proportion and time, and guaranteeing the stability and consistency of product quality; the colorant supply system is signal-connected with the central processing unit, and can accurately control the supply of multiple colorants according to the instructions of the central processing unit; the injection head 2 is connected with the colorant supply system, and is responsible for accurately injecting colorants of different colors into the injection molding cavity 4 of the injection molding mold 3; the number, shape and layout of the injection molding cavity 4 are determined according to the design requirements of the product; the model cavity 11 is communicated with the bottom of the injection molding cavity 4, and provides the final molding shape for the injection molded product; the opening and closing mechanism of the mold is signal-connected with the central processing unit, and can accurately realize the opening and closing actions of the mold under the control of the central processing unit, ensuring the smooth progress of the injection molding process and improving the production efficiency and product quality.

[0030] It is preferred that the temperature sensor 6 is fixedly installed inside the injection molding mold 3, the size of the sealed temperature -sensing sheet 5 is greater than the size of the temperature sensor 6, and the sealed temperature -sensing sheet 5 is fixedly installed inside the injection molding mold 3.

[0031] The sealing temperature guide sheet 5 is installed inside the injection cavity 4 to seal the temperature sensor 6, wherein the sealing temperature guide sheet 5 is made of a material with good heat conduction performance, which can quickly transfer the temperature of the material in the injection cavity 4 to the temperature sensor 6, ensuring that the temperature sensor 6 can accurately measure the material temperature. The sealing temperature guide sheet 5 indirectly contacts the material, avoiding direct erosion and damage of the temperature sensor 6 by the material, ensuring the stability and safety of temperature detection. The temperature sensor 6 is signal connected with the central processing unit, and transmits real-time temperature data to the central processing unit. The central processing unit judges the injection state of the material according to the preset temperature range, so as to timely adjust the injection process parameters, ensuring the normal progress of the injection process and the stability of the product quality.

[0032] According to any one of the above solutions, the injection sealing plate 7 comprises an electric telescopic rod 71 signal connected with the central processing unit and a sealing plate 72 for closing the injection cavity 4. The electric telescopic rod 71 is fixedly installed inside the injection mold 3, and one end of the electric telescopic rod 71 is fixedly installed with the sealing plate 72 which moves inside the injection mold 3.

[0033] According to the above technical solution: the electric telescopic rod 71 drives the sealing plate 72 to move in the injection mold 3 under the control of the central processing unit. When it is necessary to close the injection cavity 4, the sealing plate 72 is tightly attached to the port of the injection cavity 4 under the push of the electric telescopic rod 71, forming a good sealing effect to prevent material leakage. The laser ranging sensor 8 installed at the bottom of the sealing plate 72 can detect the position height of the material in the injection cavity 4 in real time, providing important feedback information for the central processing unit to control the injection process and the injection timing of high-pressure gas, ensuring the quality of the injection product and the stability of the production process.

[0034] According to any one of the above solutions, the laser ranging sensor 8 is fixedly installed at the bottom of the sealing plate 72, and the diameter of the laser ranging sensor 8 is smaller than the inner diameter of the gas guide ring groove 9.

[0035] According to any one of the above solutions, the outer diameter of the gas guide ring groove 9 is smaller than the inner diameter of the injection cavity 4, and one end of the gas guide ring groove 9 is communicated with a gas guide cavity opened in the inside of the sealing plate 72.

[0036] According to the above technical solution: the laser ranging sensor 8 transmits the measurement data to the central processing unit in real time. The central processing unit determines whether the material reaches the preset filling height according to these data, and then decides whether to start the high-pressure pump set 10. The gas guide ring groove 9 enables the high-pressure gas to uniformly act on the surface of the material. Under the drive of the high-pressure pump set 10, the high-pressure gas is delivered into the injection cavity 4 to extrude the material, ensuring that the material fully fills the mold cavity 11, reducing material residue, and improving material utilization.

[0037] Preferably, the high-pressure pump set 10 comprises a high-pressure air pump 101 connected to the central processing unit and a gas conveying hose 102 for conveying gas, the high-pressure air pump 101 is fixedly installed at the top end of the injection mold 3, one end of the high-pressure air pump 101 is fixedly installed with the gas conveying hose 102 fixedly installed with the sealing plate 72, and the gas conveying hose 102 is in communication with the gas guide cavity.

[0038] The technical scheme has the following beneficial effects: when the central processing unit determines that the material needs to be extruded according to the data of the laser ranging sensor 8, the high-pressure air pump 101 is started, high-pressure gas enters the gas guide ring groove 9 through the gas conveying hose 102 and the gas guide cavity, and then uniformly acts on the surface of the material, so that the material is compacted and filled into each corner of the mold cavity 11, the density and quality of the injection product are improved, the residual material in the injection cavity 4 is reduced, and the production cost is reduced.

[0039] The working principle of the three-color injection molding machine is as follows:

[0040] When working, the central processing unit controls the colorant supply system to inject colorant into the injection cavity 4 through the injection head 2, the sealing temperature guide sheet 5 transmits the material temperature to the temperature sensor 6, the sensor transmits data to the central processing unit, if the temperature is abnormal, the central processing unit adjusts the injection parameters, after a certain amount of material is injected, the electric telescopic rod 71 pushes the sealing plate 72 to seal the injection cavity 4, the laser ranging sensor 8 measures the material height and transmits data to the central processing unit, if the material does not reach the preset height, continue to inject; if the material reaches the preset height, the central processing unit starts the high-pressure pump set 10, the high-pressure air pump 101 generates high-pressure gas to extrude the material through the gas conveying hose 102, the gas guide cavity and the gas guide ring groove 9, so that the material is fully filled into the mold cavity 11.

[0041] Compared with the prior art, the utility model has the following beneficial effects:

[0042] 1. The sealing temperature guide sheet 5 arranged in the injection cavity 4 for injecting material transmits the temperature of the material to the temperature sensor 6, the temperature sensor 6 detects the temperature of the injected material, and the injection sealing plate 7 moves according to the temperature detection data, so that the injection sealing plate 7 can seal the injection cavity 4 after the material is injected, the laser ranging sensor 8 detects the position of the material in the injection cavity 4, and the high-pressure pump set 10 pumps high-pressure gas into the injection cavity 4 through the gas guide ring groove 9 to extrude the material, thereby reducing the residual material in the injection cavity 4, improving the utilization rate of the material, and reducing resource waste.

[0043] 2. The sealing temperature guide sheet 5 seals the temperature sensor 6, ensures that the temperature sensor 6 detects the temperature of the material without contacting the material, effectively avoids damage to the temperature sensor 6, and improves the stability and safety of temperature detection.

Claims

1. A three-color injection molding machine, comprising a fixed support injection molding frame, a central processing unit for automatic control is fixedly installed inside the injection molding frame, a colorant supply system for supplying multiple colorants is signal connected to the central processing unit, an injection head for injection molding colorants is fixedly installed at one end of the colorant supply system, and an injection molding mold for injection molding is arranged below the injection head, characterized in that, The injection mold is provided with a plurality of injection cavities for injection molding, a sealed temperature guide sheet for detecting the temperature of the material is fixedly installed inside the injection cavity, a temperature sensor for temperature detection is fixedly installed at one end of the sealed temperature guide sheet, a timing module for timing is signal connected to the temperature sensor, an injection sealing plate for sealing the injection cavity is arranged on one side of the temperature sensor, a laser ranging sensor for detecting the material is fixedly installed inside the injection sealing plate, a gas guide ring groove for conveying high-pressure gas is arranged on the circumference of the laser ranging sensor, and a high-pressure pump unit for generating high-pressure gas is fixedly installed at one end of the gas guide ring groove.

2. A three-color injection molding machine as claimed in claim 1, characterized in that The injection head is fixedly installed at the top end of the injection frame, the injection mold is fixedly installed inside the injection frame, and the bottom of the injection cavity is communicated with a mold cavity formed inside the injection mold.

3. A three-color injection molding machine as claimed in claim 2, characterized in that The temperature sensor is fixedly installed inside the injection mold, the size of the sealed temperature guide sheet is greater than that of the temperature sensor, and the sealed temperature guide sheet is fixedly installed inside the injection mold.

4. A three-color injection molding machine as claimed in claim 3, wherein The injection sealing plate comprises an electric telescopic rod signal connected to the central processing unit and a sealing plate for sealing the injection cavity, the electric telescopic rod is fixedly installed inside the injection mold, and the sealing plate is fixedly installed at one end of the electric telescopic rod and moves inside the injection mold.

5. A three-color injection molding machine as claimed in claim 4, wherein The laser ranging sensor is fixedly installed at the bottom of the sealing plate, and the diameter of the laser ranging sensor is less than the inner diameter of the gas guide ring groove.

6. A three-color injection molding machine as claimed in claim 5, characterized in that The outer diameter of the gas guide ring groove is less than the inner diameter of the injection cavity, and one end of the gas guide ring groove is communicated with a gas guide cavity formed inside the sealing plate.

7. A three-color injection molding machine as claimed in claim 6, characterized in that The high-pressure pump unit comprises a high-pressure gas pump signal connected to the central processing unit and a gas guide hose for conveying gas, the high-pressure gas pump is fixedly installed at the top end of the injection mold, the gas guide hose is fixedly installed at one end of the high-pressure gas pump and fixedly installed with the sealing plate, and the gas guide hose is in communication with the gas guide cavity.

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