CN107791448B - Feeding system of glue injection molding system and glue injection molding system - Google Patents
Feeding system of glue injection molding system and glue injection molding system Download PDFInfo
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- CN107791448B CN107791448B CN201610784513.5A CN201610784513A CN107791448B CN 107791448 B CN107791448 B CN 107791448B CN 201610784513 A CN201610784513 A CN 201610784513A CN 107791448 B CN107791448 B CN 107791448B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/18—Feeding the material into the injection moulding apparatus, i.e. feeding the non-plastified material into the injection unit
- B29C45/1808—Feeding measured doses
Abstract
The invention provides a feeding system of an injection molding system and the injection molding system, wherein the feeding system comprises a filler feeding device, a liquid raw material container, a mixing container and a storage container; the output end of the filler supply device is connected to the mixing container, the liquid raw material container is communicated to the mixing container, the mixing container receives the filler and the liquid raw materials and mixes the filler and the liquid raw materials into glue injection raw materials, and the feeding pipe of the mixing container is communicated to the storage container. A negative pressure container is communicated between the filler supply device and the mixing container, the negative pressure container is provided with an input port and an output port, the input port is communicated with the filler supply device, the output port is communicated with the mixing container, and the negative pressure container controls the supply amount of the filler to the mixing container; the mixing container is communicated with a negative pressure generating device, a negative pressure space is formed in the mixing container, and the mixing container sucks the filler and/or the liquid raw materials through negative pressure; and the mixing container is provided with a weighing device which meters the amount of the filler and/or liquid raw material entering the mixing container.
Description
Technical Field
The invention relates to the technical field of glue injection molding, in particular to a feeding system of a glue injection molding system and the glue injection molding system.
Background
At present, in the glue injection industry, a glue injection molding system for liquid media or liquid-solid mixed media generally adopts the steps of manually metering each single-component material, then placing the single-component material in a mixing container, and then stirring and vacuumizing the mixing container. The process is to control each process parameter manually, then to move the mixing container with mixed material to the former, to extrude the mixture into the mould cavity by pressure gas to heat and shape. The method mainly has the following defects:
because manual control and measurement are adopted, material proportioning distortion is easily caused; the process parameter control adopts a manual mode, needs to be corrected according to experience, and is easy to cause internal defects of products and discard.
The material is extruded into the die by taking pressure gas as a pressure source, so that the material flow and the glue injection speed cannot be accurately controlled; resulting in large product quality fluctuation and difficult control under a unified standard.
Because the raw materials are proportioned by using one mixing container, the next raw material proportioning needs to be carried out after the proportioned mixture in the mixing container is used up, and thus mass uninterrupted production cannot be realized.
Active chemical materials such as powder raw materials and liquid raw materials are exposed in the environment and cannot meet the requirements of environmental protection and health of workers.
In the prior art, a multi-component material is metered and respectively filled into two tanks, that is, a single-component material is divided into two components of a/B for respective pretreatment, the pretreated material is extruded into a measuring cylinder type metering device through a hydraulic device and is metered through the measuring cylinder type metering device, the a/B material is mixed again through the extrusion force, and the mixture is injected into a mold cavity and extruded into a molded product.
The method has the main defects that:
the material metering frequency is high, although small errors can be easily achieved in single material metering, the errors can be easily amplified through the leverage after the material metering is carried out again, and the material matching is greatly distorted; when the proportioning distortion occurs, all the products produced in the prior art are scrapped, and the material waste is large.
The A/B component materials are extruded by the hydraulic devices respectively and enter the measuring cylinder for metering, micro asynchronous extrusion exists between the hydraulic devices, the proportioning of the A/B component materials is distorted, and meanwhile, the A/B component materials are not uniformly mixed only through the extrusion force.
The extrusion force in the mold cavity is the extrusion force of the hydraulic device transmitted through the A/B material, so the speed of injecting the glue into the mold and the amount of the material cannot be accurately controlled.
In summary, the above two methods cannot achieve precise measurement and precise control.
The above information disclosed in this background section is only for enhancement of understanding of the background of the invention and therefore it may contain information that does not constitute prior art that is already known to a person of ordinary skill in the art.
Disclosure of Invention
The present invention is directed to overcome at least one of the deficiencies of the prior art, and a main object of the present invention is to provide a feeding system and a glue injection molding system of a glue injection molding system, which can perform precise material proportioning and can perform mass automated production.
In order to achieve the purpose, the invention adopts the following technical scheme:
according to an aspect of the present invention, an embodiment of the present invention provides a feeding system of a glue injection molding system, the feeding system including a filling material supply device, a liquid raw material container, a mixing container, and a storage container; the output end of the filler supply device is connected to the mixing container, the liquid raw material container is communicated to the mixing container, the mixing container receives filler and liquid raw materials and mixes the filler and the liquid raw materials into glue injection raw materials, a feeding pipe of the mixing container is communicated to the storage container, the storage container is used for supplying the glue injection raw materials for a glue injection molding device, a negative pressure container is communicated between the filler supply device and the mixing container, the negative pressure container is provided with an input port and an output port, the input port is communicated with the filler supply device, the output port is communicated with the mixing container, and the negative pressure container controls the supply amount of the filler to the mixing container; the mixing container is communicated with a negative pressure generating device, a negative pressure space is formed in the mixing container, and the mixing container sucks the filler and/or the liquid raw materials through negative pressure; and the mixing container is provided with a weighing device which meters the amount of the filler and/or the liquid raw material entering the mixing container.
According to an embodiment of the present invention, wherein: the heating device is used for heating the glue injection raw material; the temperature sensor is used for measuring the temperature of the glue injection raw material; and/or a stirring device for stirring the glue injection raw materials.
According to an embodiment of the present invention, the negative pressure container, the liquid material container, the mixing container and the storage container form a set of dosing units, and one filling material supply device connects a plurality of sets of dosing units.
According to an embodiment of the present invention, the output end of the filling material supply device, the output end of the negative pressure container, the output end of the liquid material container, the output end of the mixing container, and the output end of the storage container are respectively provided with an electromagnetic valve.
According to an embodiment of the present invention, the weighing device is a meter, and the meter is provided on a pipe connecting the mixing container and the negative pressure container and on a pipe connecting the mixing container and the liquid material container.
According to an embodiment of the present invention, there are a plurality of the liquid material containers, and a plurality of the transition containers, and each of the transition containers is connected to one of the liquid material containers; each transition container is positioned between the negative pressure container and the mixing container, and the transition container receives the filling material supplied by the negative pressure container and the liquid raw material supplied by the corresponding liquid raw material container; each of the transition containers feeds the mixing container and is provided with a weighing device which meters the amount of the filler and/or the liquid raw material entering the transition container.
According to an embodiment of the present invention, wherein the filler supply device, the negative pressure container, the plurality of liquid material containers, and the plurality of transition containers connected thereto form a material supply unit; the mixing vessel and the storage vessel form a set of compounding units;
the raw material providing units are arranged into one group, and the mixing units are arranged into a plurality of groups;
the output ends of the transition containers form the output end of the raw material providing unit, and the output end of the raw material providing unit is connected with a plurality of groups of mixing units.
According to an embodiment of the present invention, the output end of the filling material supply device, the output end of the negative pressure container, the output end of the liquid material container, the output end of the mixing container, the output end of the storage container, and the input end and the output end of the transition container are respectively provided with an electromagnetic valve.
According to an embodiment of the present invention, the weighing device is a meter, and the meters are respectively disposed on a pipeline connecting the mixing vessel and the transition vessel, a pipeline connecting the transition vessel and the liquid material vessel, and a pipeline connecting the transition vessel and the negative pressure vessel.
According to an embodiment of the present invention, a servo motor for controlling the glue injection parameters is disposed in the storage container.
According to an embodiment of the present invention, the pressure glue injection molding system further includes a programmable logic controller for controlling the servo motor, the heating device, the stirring device, and the electromagnetic valve.
According to an embodiment of the present invention, the bottom of the storage container is provided with the output opening at the lowest position, and the output opening is smoothly and obliquely connected with the side wall of the storage container.
According to another aspect of the invention, the injection molding system comprises the above material supply system, and the output end of the storage container is communicated with a mold cavity for injection molding of the injection raw material.
According to the technical scheme, the invention has at least one of the following advantages and positive effects: the input port of the negative pressure container is communicated with the filler supply device, the output port of the negative pressure container is communicated with the mixing container, and the supply amount of the filler to the mixing container is controlled by the negative pressure container; the mixing container is provided with a weighing device which measures the amount of the filler and/or the liquid raw material entering the mixing container; the use amount of the raw materials is controlled by matching the negative pressure container and the weighing device, so that the purposes of accurate metering and accurate control are achieved.
Drawings
The above and other features and advantages of the present invention will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings.
FIG. 1 is a schematic structural diagram of a first embodiment of a glue injection molding system according to the present invention;
FIG. 2 is a schematic structural diagram of a second embodiment of the injection molding system of the present invention;
FIG. 3 is a schematic structural diagram of a third embodiment of the injection molding system of the present invention;
fig. 4 is a schematic structural diagram of a fourth embodiment of the injection molding system according to the present invention.
In the figure: 1. a filler supply device; 2. a liquid feedstock container; 3. a mixing vessel; 4. a storage container; 5. a negative pressure container; 6. an electromagnetic valve; 7. a weighing device; 8. a dosing unit; 9. a raw material supply unit; 10. a mixing unit; 11. a servo motor; 12. a mold cavity; 13. a transition vessel; 14. a negative pressure generating device.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus their detailed description will be omitted.
The first embodiment is as follows:
as shown in fig. 1, the structure of the first embodiment of the injection molding system is schematically illustrated, the injection molding system includes a feeding system, and an output end of the feeding system is communicated with a mold cavity 12 for injection molding of the injection raw material.
The supply system includes a filler supply device 1, a liquid raw material container 2, a mixing container 3, and a storage container 4. The filler supply device 1 is installed at the uppermost part of the whole glue injection molding system in a hoisting mode; the output end of the filler supply device 1 can be connected to a mixing container 3, the liquid raw material container 2 is communicated to the mixing container 3, the mixing container 3 receives the filler and the liquid raw materials and mixes the filler and the liquid raw materials into glue injection raw materials, a feeding pipe of the mixing container 3 is communicated to a storage container 4, the storage container 4 supplies the glue injection raw materials for the mold cavity 12, a negative pressure container 5 is communicated between the filler supply device 1 and the mixing container 3, the negative pressure container 5 can be provided with an input port and an output port, the input port is communicated with the filler supply device 1, the output port is communicated with the mixing container 3, and the negative pressure container 5 controls the supply amount of the filler to; the mixing container 3 is communicated with a negative pressure generating device 14, a negative pressure space is arranged in the mixing container 3, and the mixing container 3 sucks the filler and/or the liquid raw materials respectively through negative pressure; and the mixing container 3 is provided with a weighing device 7, which weighing device 7 meters the amount of filling material and/or liquid raw material entering the mixing container 3.
The input port of the negative pressure container 5 is communicated with the filler supply device 1, the output port thereof is communicated with the mixing container 3, and the supply amount of the filler to the mixing container 3 is controlled by the negative pressure container 5; the mixing container 3 is furthermore provided with a weighing device 7, the weighing device 7 metering the amount of the filling material and/or liquid raw material entering the mixing container 3; the use amount of the raw materials is controlled by matching the negative pressure container 5 and the weighing device 7, so that the purposes of accurate metering and accurate control are achieved.
Provided in the mixing container 3 are: the heating device is used for heating the glue injection raw material; the temperature sensor is used for measuring the temperature of the glue injection raw material; a barometer for measuring the vacuum level in the mixing vessel; and a stirring device for stirring the glue injection raw materials. The mixing container 3 in the present embodiment is provided with the above-described device, but is not limited to such an arrangement, and for example, a device for heating or cooling the compound-injected material may be provided.
The heating temperature of the glue injection raw material is controlled through the temperature sensor and the heating device, and the amount of the raw material input into the mixing container is calculated after the vacuum degree is measured through the barometer. The raw materials are uniformly mixed by a stirring device. During the mixing process, the mixture is heated or cooled while being stirred and vacuumized, the heating or cooling time, the stirring speed, the stirring time, the vacuum degree and the like can be controlled according to set values, the actual values can be displayed on line in real time, and the parameters can be stored through a memory so as to be convenient for taking the parameters next time. The stirring device can adopt a spiral rotating type stirring device with a blade fork or a mountain axe type stirring device.
The output end of the filling material supply device 1, the output end of the negative pressure container 5, the output end of the liquid raw material container 2, the output end of the mixing container 3 and the output end of the storage container 4 are respectively provided with an electromagnetic valve 6. The electromagnetic valve 6 is further matched with the negative pressure container 5 to control the on-off of pipelines among the containers.
The weighing device 7 is a flow meter respectively arranged on the mixing container 3 and the negative pressure container 5, and on the pipeline connecting the mixing container 3 and the liquid raw material container 2, and the purpose of weight control is achieved through the flow meter. Or may be a weight scale provided on the mixing container 3, the weight scale being provided at the bottom of the mixing container 3 by means of an electronic scale or by means of a hook scale.
A servo motor 11 for controlling glue injection parameters is arranged in the storage container 4. The servo motor 11 is adopted to control the injection speed and pressure of raw materials and calculate the glue injection weight of the materials, and the instability of control by adopting gas compressed air or an air cylinder is eliminated.
The pressure glue injection molding system controls the servo motor 11, the heating device, the stirring device and the electromagnetic valve through a Programmable Logic controller (Programmable Logic controller PLC), so as to achieve the purpose of completely automatic control. And an abnormal alarm device is arranged, and the programmable logic controller controls the alarm device to alarm when sensing data abnormity.
The working process is as follows:
opening an electromagnetic valve between the negative pressure container 5 and the filler supply device 1, enabling the filler in the filler supply device 1 to enter the negative pressure container 5 under the action of negative pressure, vacuumizing the mixing container 3, opening the electromagnetic valve between the negative pressure container 5 and the mixing container 3, and weighing the filler through a weighing device 7; and then sequentially opening the electromagnetic valves between the liquid raw material container 2 and the mixing container 3 to enable the liquid raw materials in the liquid raw material container 2 to sequentially and respectively enter the mixing container 3, and respectively weighing a plurality of liquid raw materials by the weighing device 7, wherein the adding sequence of various raw materials can be adjusted according to the requirement. Then starting a temperature sensor and a heating device to heat the glue injection raw material, measuring the heating temperature of the glue injection raw material in real time, and uniformly mixing various raw materials through a stirring device; after the glue injection raw material meets the glue injection requirement, the electromagnetic valve between the mixing container 3 and the storage container 4 is opened, the glue injection raw material is injected into the storage container 4, and the servo motor 11 is started to inject the glue injection raw material into the mold cavity 12 according to the injection speed of the glue injection raw material.
Example two:
as shown in fig. 2, the structure of the second embodiment of the injection molding system is schematically illustrated, the injection molding system includes a feeding system, and an output end of the feeding system is communicated with a mold cavity 12 for injection molding of the injection raw material.
The feeding system comprises a filling material feeding device 1, a liquid raw material container 2, a mixing container 3 and a storage container 4; the output end of the filler supply device 1 is connected to the mixing container 3, the liquid raw material container 2 is communicated to the mixing container 3, the mixing container 3 receives the filler and the liquid raw materials and mixes the filler and the liquid raw materials into glue injection raw materials, the feeding pipe of the mixing container 3 is communicated to the storage container 4, the storage container 4 is used for supplying the glue injection raw materials for the mold cavity 12, a negative pressure container 5 is communicated between the filler supply device 1 and the mixing container 3, the negative pressure container 5 is provided with an input port and an output port, the input port is communicated with the filler supply device 1, the output port is communicated with the mixing container 3, and the negative pressure container 5 controls the supply amount of the filler; the mixing container 3 is communicated with a negative pressure generating device 14, a negative pressure space is arranged in the mixing container 3, and the mixing container 3 sucks the filler and/or the liquid raw materials respectively through negative pressure; and the mixing container 3 is provided with a weighing device 7, which weighing device 7 meters the amount of filling material and/or liquid raw material entering the mixing container 3.
The filler supply device 1 is provided as one, the negative pressure container 5, the liquid material container 2, the mixing container 3 and the storage container 4 form one set of the batching unit 8, and the filler supply device 1 is connected with a plurality of sets of the batching unit 8.
The input port of the negative pressure container 5 is communicated with the filler supply device 1, the output port thereof is communicated with the mixing container 3, and the supply amount of the filler to the mixing container 3 is controlled by the negative pressure container 5; the mixing container 3 is furthermore provided with a weighing device 7, the weighing device 7 metering the amount of the filling material and/or liquid raw material entering the mixing container 3; the use amount of the raw materials is controlled by matching the negative pressure container 5 and the weighing device 7, so that the purposes of accurate metering and accurate control are achieved.
Provided in the mixing container 3 are: the heating device is used for heating the glue injection raw material; the temperature sensor is used for measuring the temperature of the glue injection raw material; a barometer for measuring the vacuum level in the mixing vessel; and a stirring device for stirring the glue injection raw materials. The mixing container 3 in the present embodiment is provided with the above-described device, but is not limited to such an arrangement, and for example, a device for heating or cooling the compound-injected material may be provided. The heating temperature of the glue injection raw material is controlled through the temperature sensor and the heating device, and the amount of the raw material input into the mixing container is calculated after the vacuum degree is measured through the barometer. The raw materials are uniformly mixed by a stirring device. During the mixing process, the mixture is heated or cooled while being stirred and vacuumized, the heating or cooling time, the stirring speed, the stirring time, the vacuum degree and the like can be controlled according to set values, the actual values can be displayed on line in real time, and the parameters can be stored through a memory so as to be convenient for taking the parameters next time. The stirring device can adopt a spiral rotating type stirring device with a blade fork or a mountain axe type stirring device.
The output end of the filling material supply device 1, the output end of the negative pressure container 5, the output end of the liquid raw material container 2, the output end of the mixing container 4 and the output end of the storage container 4 are respectively provided with an electromagnetic valve. The electromagnetic valve 6 is further matched with the negative pressure container 5 to control the on-off of pipelines among the containers.
The weighing device 7 is a flow meter respectively arranged on the mixing container 3 and the negative pressure container 5, and on the pipeline connecting the mixing container 3 and the liquid raw material container 2, and the purpose of weight control is achieved through the flow meter. Or may be a weight scale provided on the mixing container 3, the weight scale being provided at the bottom of the mixing container 3 by means of an electronic scale or by means of a hook scale.
A servo motor 11 for controlling glue injection parameters is arranged in the storage container 4. The servo motor 11 is adopted to control the injection speed and pressure of raw materials and calculate the glue injection weight of the materials, and the instability of control by adopting gas compressed air or an air cylinder is eliminated.
The pressure glue injection molding system controls the servo motor 11, the heating device, the stirring device and the electromagnetic valve through the programmable logic controller, and achieves the purpose of full automatic control. And an abnormal alarm device is arranged, and the programmable logic controller controls the alarm device to alarm when sensing data abnormity.
The working process is as follows:
opening an electromagnetic valve between the negative pressure container 5 and the filler supply device 1 in the first group of material mixing units 8 to start adding the filler to the first group of material mixing units 8; and (3) under the action of negative pressure, filling materials in the filling material supply device 1 enter the negative pressure container 5, after filling material addition of the first group of the material mixing units 8 is completed, filling material addition of the second group of the material mixing units 8 is started, and filling material addition of each group of the material mixing units 8 is sequentially completed according to the sequence.
After the addition of filler to any group of the material units 8 is completed, the liquid material addition to the group of the material units 8 can be started, and the liquid material addition of the group is independent of the filler addition of the other groups.
The liquid raw material adding process is as follows: after the mixing container 3 is vacuumized, opening an electromagnetic valve between the negative pressure container 5 and the mixing container 3, and weighing the filler by a weighing device 7; and then sequentially opening the electromagnetic valves between the liquid raw material container 2 and the mixing container 3 to enable the liquid raw materials in the liquid raw material container 2 to sequentially and respectively enter the mixing container 3, and respectively weighing a plurality of liquid raw materials by the weighing device 7, wherein the adding sequence of various raw materials can be adjusted according to the requirement. Then starting a temperature sensor and a heating device to heat the glue injection raw material, measuring the heating temperature of the glue injection raw material in real time, and uniformly mixing various raw materials through a stirring device; after the glue injection raw material meets the glue injection requirement, the electromagnetic valve between the mixing container 3 and the storage container 4 is opened, the glue injection raw material is injected into the storage container 4, and the servo motor 11 is started to inject the glue injection raw material into the mold cavity 12 according to the injection speed of the glue injection raw material.
The second embodiment can meet the requirement of converting the traditional large-scale production into the customized production, and can also meet the requirement of converting the customized production into the large-scale production. The production scale is flexible and changeable to meet various market demands.
Example three:
as shown in fig. 3, the structure of the first embodiment of the injection molding system is schematically illustrated, the injection molding system includes a feeding system, and an output end of the feeding system is communicated with a mold cavity 12 for injection molding of the injection raw material.
The feeding system comprises a filling material feeding device 1, a liquid raw material container 2, a mixing container 3 and a storage container 4; the output end of the filler supply device 1 is connected to the mixing container 3, the liquid raw material container 2 is communicated to the mixing container 3, the mixing container 3 receives the filler and the liquid raw materials and mixes the filler and the liquid raw materials into glue injection raw materials, the feeding pipe of the mixing container 3 is communicated to the storage container 4, the storage container 4 is used for supplying the glue injection raw materials for the mold cavity 12, a negative pressure container 5 is communicated between the filler supply device 1 and the mixing container 3, the negative pressure container 5 is provided with an input port and an output port, the input port is communicated with the filler supply device 1, the output port is communicated with the mixing container 3, and the negative pressure container 5 controls the supply amount of the filler; the mixing container 3 is communicated with a negative pressure generating device 14, a negative pressure space is arranged in the mixing container 3, and the mixing container 3 sucks the filler and/or the liquid raw materials respectively through negative pressure; and the mixing container 3 is provided with a weighing device 7, which weighing device 7 meters the amount of filling material and/or liquid raw material entering the mixing container 3.
The input port of the negative pressure container 5 is communicated with the filler supply device 1, the output port thereof is communicated with the mixing container 3, and the supply amount of the filler to the mixing container 3 is controlled by the negative pressure container 5; the mixing container 3 is furthermore provided with a weighing device 7, the weighing device 7 metering the amount of the filling material and/or liquid raw material entering the mixing container 3; the use amount of the raw materials is controlled by matching the negative pressure container 5 and the weighing device 7, so that the purposes of accurate metering and accurate control are achieved.
The feeding system is provided with a plurality of liquid raw material containers 2 and a plurality of transition containers 13 correspondingly, wherein each transition container 13 is connected with one liquid raw material container 2 correspondingly; each transition container 13 is positioned between the negative pressure container 5 and the mixing container 3, and the transition container 13 receives the filling material supplied by the negative pressure container 5 and the liquid raw material supplied by the corresponding liquid raw material container 2; each transition vessel 13 is fed to the mixing vessel 3, and the transition vessel 13 is provided with a weighing device 7, the weighing device 7 metering the amount of filler and/or liquid raw material entering the transition vessel 13.
Under the condition that a plurality of liquid raw materials and fillers are required to be mixed respectively, the liquid raw materials and the fillers are mixed respectively through the transition containers 13, and the weight of the liquid raw materials and the weight of the fillers added into each transition container 13 are weighed respectively through the weighing device 7, so that the aim of accurately metering the raw materials is fulfilled.
Provided in the mixing container 3 are: the heating device is used for heating the glue injection raw material; the temperature sensor is used for measuring the temperature of the glue injection raw material; a barometer for measuring the vacuum level in the mixing vessel; and a stirring device for stirring the glue injection raw materials. The mixing container 3 in the present embodiment is provided with the above-described device, but is not limited to such an arrangement, and for example, a device for heating or cooling the compound-injected material may be provided. The heating temperature of the glue injection raw material is controlled through the temperature sensor and the heating device, and the amount of the raw material input into the mixing container is calculated after the vacuum degree is measured through the barometer. The raw materials are uniformly mixed by a stirring device. During the mixing process, the mixture is heated or cooled while being stirred and vacuumized, the heating or cooling time, the stirring speed, the stirring time, the vacuum degree and the like can be controlled according to set values, the actual values can be displayed on line in real time, and the parameters can be stored through a memory so as to be convenient for taking the parameters next time. The stirring device can adopt a spiral rotating type stirring device with a blade fork or a mountain axe type stirring device.
The output end of the filler supply device 1, the output end of the negative pressure container 5, the output end of the liquid raw material container 2, the output end of the mixing container 3, the output end of the storage container 4, and the input end and the output end of the transition container 13 are respectively provided with an electromagnetic valve 6. The electromagnetic valve 6 is further matched with the negative pressure container 5 to control the on-off of pipelines among the containers.
The weighing device 7 is a flow meter which is respectively arranged on the pipelines connected with the mixing container 3 and the transition container 13, the transition container 13 and the liquid raw material container 2, and the transition container 13 and the negative pressure container 5, and the purpose of weight control is achieved through the flow meter. Or may be a weight scale arranged on the mixing container 3 or the transition container 13, wherein the weight scale is arranged at the bottom of the mixing container 3 or the transition container 13 in an electronic scale mode or in a hook scale mode.
A servo motor 11 for controlling glue injection parameters is arranged in the storage container 4. The servo motor 11 is adopted to control the injection speed and pressure of raw materials and calculate the glue injection weight of the materials, and the instability of control by adopting gas compressed air or an air cylinder is eliminated.
The pressure glue injection molding system controls the servo motor 11, the heating device, the stirring device and the electromagnetic valve through the programmable logic controller, and achieves the purpose of full automatic control. And an abnormal alarm device is arranged, and the programmable logic controller controls the alarm device to alarm when sensing data abnormity.
The working process is as follows:
opening an electromagnetic valve between the negative pressure container 5 and the filler supply device 1, enabling the filler in the filler supply device 1 to enter the negative pressure container 5 under the action of negative pressure, vacuumizing the transition container 13, sequentially opening the electromagnetic valves between the transition container 13 and the liquid raw material container 2 and between the transition container 13 and the negative pressure container 5, respectively and sequentially adding the liquid raw material and the filler into the transition container 13, and respectively weighing the filler and the liquid raw material through a weighing device 7 arranged on the transition container 13; after the mixing container 3 is vacuumized, sequentially opening the electromagnetic valves between the transition containers 13 and the mixing container 3 to enable various mixtures of liquid raw materials and fillers to sequentially enter the mixing container 3, weighing the various mixtures through the weighing device 7 arranged on the mixing container 3, then starting the temperature sensor and the heating device to heat the glue injection raw materials, measuring the heating temperature of the glue injection raw materials in real time, and uniformly mixing the various raw materials through the stirring device; after the glue injection raw material meets the glue injection requirement, the electromagnetic valve between the mixing container 3 and the storage container 4 is opened, the glue injection raw material is injected into the storage container 4, and the servo motor 11 is started to inject the glue injection raw material into the mold cavity 12 according to the injection speed of the glue injection raw material.
Example four:
as shown in fig. 4, the structure of the first embodiment of the injection molding system is schematically illustrated, the injection molding system includes a feeding system, and an output end of the feeding system is communicated with a mold cavity 12 for injection molding of the injection raw material.
The feeding system comprises a filling material feeding device 1, a liquid raw material container 2, a mixing container 3 and a storage container 4; the output end of the filler supply device 1 is connected to the mixing container 3, the liquid raw material container 2 is communicated to the mixing container 3, the mixing container 3 receives the filler and the liquid raw materials and mixes the filler and the liquid raw materials into glue injection raw materials, the feeding pipe of the mixing container 3 is communicated to the storage container 4, the storage container 4 is used for supplying the glue injection raw materials for the mold cavity 12, a negative pressure container 5 is communicated between the filler supply device 1 and the mixing container 3, the negative pressure container 5 is provided with an input port and an output port, the input port is communicated with the filler supply device 1, the output port is communicated with the mixing container 3, and the negative pressure container 5 controls the supply amount of the filler; the mixing container 3 is communicated with a negative pressure generating device 14, a negative pressure space is arranged in the mixing container 3, and the mixing container 3 sucks the filler and/or the liquid raw materials respectively through negative pressure; and the mixing container 3 is provided with a weighing device 7, which weighing device 7 meters the amount of filling material and/or liquid raw material entering the mixing container 3.
The input port of the negative pressure container 5 is communicated with the filler supply device 1, the output port thereof is communicated with the mixing container 3, and the supply amount of the filler to the mixing container 3 is controlled by the negative pressure container 5; the mixing container 3 is furthermore provided with a weighing device 7, the weighing device 7 metering the amount of the filling material and/or liquid raw material entering the mixing container 3; the use amount of the raw materials is controlled by matching the negative pressure container 5 and the weighing device 7, so that the purposes of accurate metering and accurate control are achieved.
The feeding system is provided with a plurality of liquid raw material containers 2 and a plurality of transition containers 13 correspondingly, wherein each transition container 13 is connected with one liquid raw material container 2 correspondingly; each transition container 13 is positioned between the negative pressure container 5 and the mixing container 3, and the transition container 13 receives the filling material supplied by the negative pressure container 5 and the liquid raw material supplied by the corresponding liquid raw material container 2; each transition vessel 13 is fed to the mixing vessel 3, and the transition vessel 13 is provided with a weighing device 7, the weighing device 7 metering the amount of filler and/or liquid raw material entering the transition vessel 13.
Under the condition that a plurality of liquid raw materials and fillers are required to be mixed respectively, the liquid raw materials and the fillers are mixed respectively through the transition containers 13, and the weight of the liquid raw materials and the weight of the fillers added into each transition container 13 are weighed respectively through the weighing device 7, so that the aim of accurately metering the raw materials is fulfilled.
The filler supply device 1, the negative pressure container 5, the plurality of liquid material containers 2, and the plurality of transition containers 13 connected thereto form a material supply unit 9; the mixing vessel 3 and the storage vessel 4 form a set of mixing units 10; the raw material supply units 9 are arranged in one group, and the mixing units 10 are arranged in multiple groups.
The output ends of the plurality of transition vessels 13 form the output end of the raw material providing unit 9, and the output end of the raw material providing unit 9 is connected with the multiple-unit mixing unit 10.
Under the condition of large-scale production, the raw material supply unit 9 can sequentially supply raw materials for the multiple groups of mixing units 10, and the multiple groups of mixing units 10 are produced respectively without mutual interference, so that large-scale production is realized.
Provided in the mixing container 3 are: the heating device is used for heating the glue injection raw material; the temperature sensor is used for measuring the temperature of the glue injection raw material; a barometer for measuring the vacuum level in the mixing vessel; and a stirring device for stirring the glue injection raw materials. The mixing container 3 in the present embodiment is provided with the above-described device, but is not limited to such an arrangement, and for example, a device for heating or cooling the compound-injected material may be provided. The heating temperature of the glue injection raw material is controlled through the temperature sensor and the heating device, and the amount of the raw material input into the mixing container is calculated after the vacuum degree is measured through the barometer. The raw materials are uniformly mixed by a stirring device. During the mixing process, the mixture is heated or cooled while stirring and vacuumizing, the heating or cooling time, the stirring speed, the stirring time, the vacuum degree and the like can be controlled according to the setting, the actual value can be displayed on line in real time, and the parameters can be stored by a memory so as to be convenient for taking the parameters next time. The stirring device can adopt a spiral rotating type stirring device with a blade fork or a mountain axe type stirring device.
The output end of the filler supply device 1, the output end of the negative pressure container 5, the output end of the liquid raw material container 2, the output end of the mixing container 3, the output end of the storage container 4, and the input end and the output end of the transition container 13 are respectively provided with an electromagnetic valve. The electromagnetic valve 6 is further matched with the negative pressure container 5 to control the on-off of pipelines among the containers.
The weighing device 7 is a flow meter which is respectively arranged on the pipelines connected with the mixing container 3 and the transition container 13, the transition container 13 and the liquid raw material container 2, and the transition container 13 and the negative pressure container 5, and the purpose of weight control is achieved through the flow meter. Or may be a weight scale arranged on the mixing container 3 or the transition container 13, wherein the weight scale is arranged at the bottom of the mixing container 3 or the transition container 13 in an electronic scale mode or in a hook scale mode.
A servo motor 11 for controlling glue injection parameters is arranged in the storage container 4. The servo motor 11 is adopted to control the injection speed and pressure of raw materials and calculate the glue injection weight of the materials, and the instability of control by adopting gas compressed air or an air cylinder is eliminated.
The pressure glue injection molding system controls the servo motor 11, the heating device, the stirring device and the electromagnetic valve through the programmable logic controller, and achieves the purpose of full automatic control. And an abnormal alarm device is arranged, and the programmable logic controller controls the alarm device to alarm when sensing data abnormity.
The working process is as follows:
opening an electromagnetic valve between the negative pressure container 5 and the filler supply device 1, enabling the filler in the filler supply device 1 to enter the negative pressure container 5 under the action of negative pressure, vacuumizing the transition container 13, sequentially opening the electromagnetic valves between the transition container 13 and the liquid raw material container 2 and between the transition container 13 and the negative pressure container 5, respectively and sequentially adding the liquid raw material and the filler into the transition container 13, and respectively weighing the filler and the liquid raw material through a weighing device 7 arranged on the transition container 13.
After the mixing container 3 in any group of mixing unit 10 is vacuumized, the electromagnetic valves between the transition containers 13 and the mixing container 3 are sequentially opened, so that various mixtures of liquid raw materials and fillers sequentially and respectively enter the mixing container 3, the various mixtures are respectively weighed by the weighing device 7 installed on the mixing container 3, after the raw materials of the group of mixing unit 10 are added, the electromagnetic valves between the group of mixing container 3 and the transition containers 13 are closed, the electromagnetic valves between the next group of mixing container 3 and the transition containers 13 are opened, and the raw materials are added to the next group of mixing unit 10.
Meanwhile, the temperature sensor and the heating device of the group are started to heat the glue injection raw materials, the heating temperature of the glue injection raw materials is measured in real time, and various raw materials are uniformly mixed through the stirring device; after the glue injection raw material meets the glue injection requirement, the electromagnetic valve between the mixing container 3 and the storage container 4 is opened, the glue injection raw material is injected into the storage container 4, and the servo motor 11 is started to inject the glue injection raw material into the mold cavity 12 according to the injection speed of the glue injection raw material.
The capacities of the filler supply device 1, the liquid material container 2, the mixing container 3, the storage container 4 and the transition container 13 are set according to production demand, so that the filler supply device 1, the liquid material container 2 and the transition container 13 can supply raw materials to the multi-component mixing unit 10 by feeding at one time.
According to the requirement, the multi-group mixing unit 10 can be selected for use according to the production scale, and the rapid switching of the batch production in the small state, the medium state and the large state is met; and different component materials can be added into the filler supply device 1 and the liquid raw material container 2, so that the quick switching of the different component materials is met.
In the first, second, third and fourth embodiments, the bottom of the storage container 4 is provided with the output port at the lowest position, and the output port and the side wall of the storage container are connected smoothly and obliquely. The shape of the device can be a V-shaped structure design, a conical structure design, a bevel-cut or circular-arc type and a variant V-shaped or U-shaped structure design. The design reduces the residual amount of raw materials in the storage container 4, and saves resources.
The material in the invention can be applied as follows: liquid or solid epoxy resin material, liquid silicon rubber, polyurethane and other two-component or more solid and liquid mixture.
The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments, and the features discussed in connection with the embodiments are interchangeable, if possible. One skilled in the relevant art will recognize that the invention may be practiced without one or more of the specific details, or with other methods, components, materials, and so forth. In other instances, well-known structures, materials, or operations are not shown or described in detail to avoid obscuring aspects of the invention.
All the containers in the invention are connected through pipelines, thereby reducing dust, eliminating the man-machine engineering of transportation, eliminating peculiar smell, protecting the environment and meeting the health requirements of workers.
It is to be understood that the invention is not limited in its application to the details of construction and the arrangement of components set forth in the description. The invention is capable of other embodiments and of being practiced and carried out in various ways. The foregoing variations and modifications fall within the scope of the present invention. It will be understood that the invention disclosed and defined in this specification extends to all alternative combinations of two or more of the individual features mentioned or evident from the text and/or drawings. All of these different combinations constitute alternative aspects of the present invention. The embodiments described in this specification illustrate the best mode known for carrying out the invention and will enable those skilled in the art to utilize the invention.
Claims (9)
1. A feeding system of an injection molding system comprises a filling material supply device, a liquid raw material container, a mixing container and a storage container; the output end of the filler supply device is connected to the mixing container, the liquid raw material container is communicated to the mixing container, the mixing container receives the filler and the liquid raw materials and mixes the filler and the liquid raw materials into glue injection raw materials, the feeding pipe of the mixing container is communicated to the storage container, the storage container is used for supplying the glue injection raw materials for a glue injection molding device,
a negative pressure container is communicated between the filler supply device and the mixing container, the negative pressure container is provided with an input port and an output port, the input port is communicated with the filler supply device, the output port is communicated with the mixing container, and the negative pressure container controls the supply amount of the filler to the mixing container;
the mixing container is communicated with a negative pressure generating device, a negative pressure space is formed in the mixing container, and the mixing container sucks the filler and/or the liquid raw materials through negative pressure;
and the mixing container is provided with a weighing device which meters the amount of the filler and/or the liquid raw material entering the mixing container;
forming a group of batching units by the negative pressure container, the liquid raw material container, the mixing container and the storage container, wherein one filling material supply device is connected with a plurality of groups of batching units;
the bottom of the storage container is provided with an output port, and the output port is connected with the side wall of the storage container in a smooth and inclined mode.
2. The feeding system of the injection molding system according to claim 1, wherein:
the heating device is used for heating the glue injection raw material;
the temperature sensor is used for measuring the temperature of the glue injection raw material; and/or
A agitating unit for stirring injecting glue raw materials.
3. The feeding system of the injection molding system according to claim 1, wherein the output end of the filling material supply device, the output end of the negative pressure container, the output end of the liquid material container, the output end of the mixing container and the output end of the storage container are respectively provided with an electromagnetic valve.
4. The feeding system of the injection molding system according to claim 1, wherein the weighing device is a meter, and the meter is disposed on a pipe connecting the mixing container and the negative pressure container and on a pipe connecting the mixing container and the liquid material container.
5. The feeding system of the injection molding system according to any one of claims 1 to 4, further comprising a plurality of liquid material containers, correspondingly a plurality of transition containers, each transition container being connected to one liquid material container; each transition container is positioned between the negative pressure container and the mixing container, and the transition container receives the filling material supplied by the negative pressure container and the liquid raw material supplied by the corresponding liquid raw material container; each of the transition containers feeds the mixing container and is provided with a weighing device which meters the amount of the filler and/or the liquid raw material entering the transition container.
6. The feeding system of the injection molding system according to claim 5, wherein the filling material supply device, the negative pressure container, the plurality of liquid material containers and the plurality of transition containers connected correspondingly thereto constitute a material supply unit; the mixing container and the storage container form a mixing unit; wherein the content of the first and second substances,
the raw material providing units are arranged into one group, and the mixing units are arranged into a plurality of groups;
the output ends of the transition containers form the output end of the raw material providing unit, and the output end of the raw material providing unit is connected with a plurality of groups of mixing units.
7. The feeding system of claim 6, wherein the output end of the filling material supplying device, the output end of the negative pressure container, the output end of the liquid material container, the output end of the mixing container, the output end of the storage container, and the input end and the output end of the transition container are respectively provided with an electromagnetic valve.
8. The feeding system of the injection molding system according to claim 5, wherein the weighing devices are meters, and the meters are respectively arranged on a pipeline connecting the mixing container and the transition container, a pipeline connecting the transition container and the liquid raw material container, and a pipeline connecting the transition container and the negative pressure container.
9. An injection molding system comprising the feeding system of any one of claims 1 to 8, wherein the output end of the storage container is communicated with a mold cavity for injection molding of the injection material.
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| CN201610784513.5A CN107791448B (en) | 2016-08-31 | 2016-08-31 | Feeding system of glue injection molding system and glue injection molding system |
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| CN201610784513.5A CN107791448B (en) | 2016-08-31 | 2016-08-31 | Feeding system of glue injection molding system and glue injection molding system |
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| CN107791448B true CN107791448B (en) | 2020-02-04 |
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| CN1252748A (en) * | 1997-12-25 | 2000-05-10 | 日商·哈路那股份有限公司 | Injection molding machine, injection molding system, pellet supply unit, injection molding method and injection molding product |
| CN202528388U (en) * | 2011-12-29 | 2012-11-14 | 陈鹤亭 | Central vacuum feeding machine |
| CN104028131A (en) * | 2014-07-04 | 2014-09-10 | 易能（马鞍山）大气治理科技有限公司 | Automatic batching system |
| CN104960145A (en) * | 2015-07-08 | 2015-10-07 | 张伟飞 | Vacuum filling machine |
| CN104985753A (en) * | 2015-06-10 | 2015-10-21 | 深圳市首熙机械设备有限公司 | Automatic quantification supply control system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1252748A (en) * | 1997-12-25 | 2000-05-10 | 日商·哈路那股份有限公司 | Injection molding machine, injection molding system, pellet supply unit, injection molding method and injection molding product |
| CN202528388U (en) * | 2011-12-29 | 2012-11-14 | 陈鹤亭 | Central vacuum feeding machine |
| CN104028131A (en) * | 2014-07-04 | 2014-09-10 | 易能（马鞍山）大气治理科技有限公司 | Automatic batching system |
| CN104985753A (en) * | 2015-06-10 | 2015-10-21 | 深圳市首熙机械设备有限公司 | Automatic quantification supply control system |
| CN104960145A (en) * | 2015-07-08 | 2015-10-07 | 张伟飞 | Vacuum filling machine |
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