阅读说明：本技术 注塑成型设备及注塑成型的方法、机器可读存储介质 (Injection molding apparatus, injection molding method, and machine-readable storage medium ) 是由 蒋小军 谭显波 簧茂敬 冯文江 于 2020-07-24 设计创作，主要内容包括：本发明实施例提供一种注塑成型设备及注塑成型的方法、机器可读存储介质,包括：送料装置,用于供应物料；计量装置,用于根据预设的物料配比对物料进行计量；进料装置,连接送料装置,用于置入和输出对应配比的物料；其中,物料包括长玻璃纤维；接料装置,与进料装置连通,用于将进料装置输出的物料混合成聚合物；注塑装置,与接料装置连通,用于将聚合物塑化熔融以形成熔体。(The embodiment of the invention provides injection molding equipment, an injection molding method and a machine readable storage medium, wherein the injection molding equipment comprises the following components: the feeding device is used for supplying materials; the metering device is used for metering the materials according to a preset material proportion; the feeding device is connected with the feeding device and is used for putting and outputting materials with corresponding proportions; wherein the material comprises long glass fibers; the material receiving device is communicated with the feeding device and is used for mixing materials output by the feeding device into a polymer; and the injection molding device is communicated with the material receiving device and is used for plasticizing and melting the polymer to form a melt.)

1. An injection molding apparatus, comprising:

the feeding device is used for supplying materials;

the metering device is used for metering the materials according to a preset material proportion;

the feeding device is connected with the feeding device and is used for putting and outputting materials with corresponding proportions; wherein the material comprises long glass fibers;

the material receiving device is communicated with the feeding device and is used for receiving the material output by the feeding device;

and the injection molding device is communicated with the material receiving device and is used for plasticizing and melting the polymer formed by the materials to form a melt.

2. The injection molding apparatus of claim 1, wherein the metering device is at least one of a loss-in-weight scale, a rotational speed detector, a position detector, and a timer.

3. The injection molding apparatus of claim 2, wherein the metering device is at least two loss-in-weight scales;

the weightlessness scale is arranged between the feeding device and the receiving device so as to weigh the materials on the weightlessness scale.

4. The injection molding apparatus of claim 3, wherein the feeding device comprises a first bin and a second bin, the at least two loss-in-weight scales comprise a first loss-in-weight scale and a second loss-in-weight scale corresponding to the first bin and the second bin, respectively, and the metering device further comprises a controller electrically connected to the first loss-in-weight scale and the second loss-in-weight scale.

5. An injection moulding apparatus as claimed in claim 3, wherein said receiving means includes a drop tube for dropping polymer into said injection moulding means.

6. An injection molding apparatus as claimed in any one of claims 1 to 5, wherein said injection molding device comprises:

a housing;

a melt chamber located inside the housing and having a long cylindrical shape;

the propelling screw is arranged in the melt cavity;

and the driving device is connected with the propelling screw rod to provide driving force for the propelling screw rod.

7. A method of injection moulding applied to a moulding apparatus according to claim 1, wherein the metering feed means comprises at least two bins carrying material to be blanked; characterized in that the method comprises:

controlling the feeding mechanism to convey materials to the bins, and simultaneously metering the materials placed in the bins by the metering device to obtain material proportion values of the bins;

comparing the material proportion value with a preset batching proportion value, and controlling the amount of the material increased or decreased by each corresponding bin to enable the material proportion value in the bin to reach the preset batching proportion value;

conveying the materials in the bin to the receiving device;

dropping the polymer into the injection molding apparatus;

controlling the injection molding apparatus to melt the polymer into a melt.

8. The method of claim 7, wherein the material ratio value is at least one of a weight ratio value, a quantity ratio value, a volume ratio value, and a feed speed ratio value;

the metering device comprises a first stock bin and a second stock bin, and further comprises a vector scale; the method is characterized in that the feeding mechanism is controlled to convey materials to the storage bins, and meanwhile, the metering device meters the materials placed into the storage bins so as to obtain material proportion values of the storage bins, and the method comprises the following steps:

controlling the vector scale to measure a first weight of the material in the first bin; controlling the feeding device to stop feeding to the first bin;

controlling the vector scale to measure a second weight of the material in the second bin; controlling the feeding device to stop feeding to the second storage bin;

and reading the first weight and the second weight of the vector scale, and calculating a weight proportion value of the first weight and the second weight.

9. The method of claim 8, wherein controlling the amount of the material added or reduced to the corresponding bin to make the material proportion value in the bin reach the preset ingredient proportion value comprises:

comparing the weight proportion value with a preset batching proportion value;

controlling the feeding mechanism to continuously feed to the first bin or the second bin according to the comparison condition;

controlling the vector scale to continuously measure the first bin or the second bin, and calculating a weight proportion value in real time;

when the weight proportion value meets a preset batching proportion value, controlling the feeding mechanism to stop feeding;

or

Controlling the first bin or the second bin to unload according to the comparison condition;

controlling the vector scale to continuously measure the first bin or the second bin, and calculating a weight proportion value in real time;

and when the weight proportion value meets the preset batching proportion value, controlling the first storage bin or the second storage bin to stop unloading.

10. A machine-readable storage medium having stored thereon instructions for enabling a processor to perform the injection molding method according to any one of claims 7 to 9 when executed by the processor.

Technical Field

The invention relates to the field of injection molding equipment, in particular to injection molding equipment, an injection molding method and a machine readable storage medium.

Background

With the higher requirements of products on materials, the more and more attention is paid to polymer materials in the process of manufacturing products. It is a common technique to reinforce the structure by using long glass fibers (long glass fibers) as an auxiliary agent for modifying plastics. The long glass fiber is widely applied due to the characteristics of good mechanical property and recoverability, and is particularly applied to application scenes needing light-weight products, such as automobiles, electric appliances, ships and the like. In prior art fibre reinforced polymers, several materials are generally required and mixed in proportions to produce, and in the first step, the material is granulated, so-called "pelletising", the most common practice in the art. And secondly, carrying out secondary proportioning on the particles, and after the particles are melted, entering a die body to start casting so as to form a product. However, in the process of granulation, the fibers need to be sheared, and the fiber length cannot be retained to the maximum extent, so that the comprehensive performance of the composite material cannot be improved to the maximum extent. The method of the current manufacturers mostly adopts the method of purchasing the particles from suppliers, the manufacturers only need to carry out the second step, and the particles are easy to influence the performance under the environmental factors in the transportation or storage process, so that the production effect is poor. Therefore, the prior art solutions are in urgent need of improvement.

Disclosure of Invention

In order to solve the above technical problems, an object of the present invention is to provide an injection molding apparatus, an injection molding method, and a machine-readable storage medium.

In order to achieve the above object, in a first aspect of the present invention, there is provided an injection molding apparatus including a feeding device for supplying a material; the metering device is used for metering the materials according to a preset material proportion; the feeding device is connected with the feeding device and is used for putting and outputting materials with corresponding proportions; wherein the material comprises long glass fibers; the material receiving device is communicated with the feeding device and is used for receiving the material output by the feeding device; and the injection molding device is communicated with the material receiving device and is used for plasticizing and melting the polymer to form a melt.

In an embodiment of the present application, a metering device includes: at least two weightlessness scales; the weightlessness scale is arranged between the feeding device and the receiving device so as to weigh the materials on the weightlessness scale.

In an embodiment of the present application, a metering device includes: the feeding device comprises a first bin and a second bin, the at least two weightlessness scales comprise a first weightlessness scale and a second weightlessness scale which respectively correspond to the first bin and the second bin, and the metering device further comprises a controller which is electrically connected with the first weightlessness scale and the second weightlessness scale.

In an embodiment of the application, the receiving device comprises a blanking pipe for dropping the polymer into the injection molding device.

In an embodiment of the present application, an injection molding apparatus includes: a housing; a melt chamber located inside the housing and having a long cylindrical shape; the propelling screw is arranged in the melt cavity; and the driving device is connected with the propelling screw to provide driving force for the propelling screw.

On the other hand, the invention also provides an injection molding method, wherein the metering and feeding device comprises at least two material bins for bearing materials to perform blanking; the method is characterized by comprising the following steps:

controlling a feeding mechanism to convey materials to the bins, and simultaneously metering the materials placed in the bins by a metering device to obtain material proportion values of the bins; comparing the material proportion value with a preset batching proportion value, and controlling the increased or decreased material quantity of each corresponding bin to enable the material proportion value in the bin to reach the preset batching proportion value; conveying the materials in the bin to a receiving device to be mixed into a polymer; injecting a polymer into an injection molding apparatus; the injection molding apparatus is controlled to melt the polymer into a melt.

In the embodiment of the application, the material proportion value is at least one of a weight proportion value, a quantity proportion value, a volume proportion value and a feeding speed proportion value; the metering device comprises a first stock bin and a second stock bin, and further comprises a vector scale; its characterized in that, control feeding mechanism carries the material to the feed bin, and metering device measures the material that the feed bin was put into simultaneously to the material proportional value that obtains each feed bin includes: controlling a vector scale to measure a first weight of material in a first bin; controlling the feeding device to stop feeding to the first bin; controlling the vector scale to measure a second weight of the material in the second bin; controlling the feeding device to stop feeding to the second storage bin; the first weight and the second weight of the vector scale are read, and the weight proportion value of the first weight and the second weight is calculated.

In this application embodiment, controlling the amount of material that each feed bin that corresponds increases or reduces so that the material proportional value reaches preset batching proportional value in the feed bin includes: comparing the weight proportion value with a preset batching proportion value; controlling the feeding mechanism to continuously feed to the first bin or the second bin according to the comparison condition; controlling the corresponding vector scale to continuously measure the first bin or the second bin, and calculating a weight proportion value in real time; when the weight proportion value meets the preset batching proportion value, controlling the feeding mechanism to stop feeding; or controlling the first bin or the second bin to unload according to the comparison condition; controlling the corresponding vector scale to continuously measure the first bin or the second bin, and calculating a weight proportion value in real time; and when the weight proportion value meets the preset batching proportion value, controlling the first storage bin or the second storage bin to stop unloading.

In a second aspect of the application, a machine-readable storage medium is provided, having instructions stored thereon for enabling a processor to perform the method of injection molding according to the above when executed by the processor.

According to the technical scheme, the feeding device, the metering device, the receiving device and the injection molding device are arranged on the same equipment, so that all processes of feeding, proportioning, mixing and plasticizing molding of a high-molecular injection molding product are integrated, long glass fibers are directly introduced into the injection molding device through the feeding device, and the polymer composite material is reinforced and then injection molding is carried out; therefore, the injection molding equipment provided by the embodiment of the invention enables materials in the polymer to be accurately proportioned and the polymer to be molten; so that the online (real-time) compounding, the buffer storage, the injection mold filling and the pressure maintaining are carried out according to the time sequence; the process of lightweight and integration of modern factory equipment is built in an assisting manner.

Additional features and advantages of embodiments of the invention will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the embodiments of the invention without limiting the embodiments of the invention. In the drawings:

FIG. 1 is a schematic structural view of an injection molding apparatus provided in an embodiment of the invention;

FIG. 2 is a schematic structural view of an injection molding apparatus provided in an embodiment of the present invention in another state;

FIG. 3 is an exploded view of an injection molding apparatus in an injection molding apparatus according to an embodiment of the present invention;

FIG. 4 is a cross-sectional view of an injection molding apparatus in an injection molding apparatus according to an embodiment of the present invention;

FIG. 5 is a partial block diagram of an injection molding apparatus in an injection molding apparatus according to an embodiment of the present invention;

FIG. 6 is a schematic structural diagram of a pusher screw of an injection molding apparatus according to an embodiment of the present invention;

FIG. 7 is a flow chart of an injection molding method of an injection molding apparatus according to an embodiment of the present invention;

FIG. 8 is a flowchart of step S11 of the injection molding method of the injection molding apparatus according to the embodiment of the present invention;

FIG. 9 is a flowchart of step S12 of the injection molding method of the injection molding apparatus according to the embodiment of the present invention; and

FIG. 10 is another flowchart of step S12 of the injection molding method of the injection molding apparatus according to the embodiment of the present invention.

Description of the reference numerals

100. An injection molding apparatus;

1. an injection molding device; 2. A metering device;

3. a feeding device; 4. A material receiving device;

5. a particle homogenizing device; 6. A power plant;

7. a mold body device; 8. a user interaction device;

11. a housing; 12. A melt chamber;

13. a feed hopper; 14. A drive device;

15. a screw is advanced; 16. A fixing ring;

17. a bearing mechanism; 31. A first storage bin;

32. a second storage bin;

111. an injection head; 112. A rod portion housing;

171. a rolling bearing; 172. A clamping structure;

1121. a first opening; 1122. A second opening.

Detailed Description

The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating embodiments of the invention, are given by way of illustration and explanation only, not limitation.

Referring to fig. 1, fig. 1 is a schematic structural diagram of an injection molding apparatus 100 provided in an embodiment of the present invention, so as to implement the material blending, material receiving, and plasticizing molding of a polymer injection molding product, and in more detail, the injection molding process after introducing long glass fibers and reinforcing a polymer composite material, so that the materials (including the long glass fibers) in the polymer are precisely proportioned and the polymer is plasticized and melted; so that the online (real-time) compounding, the buffer storage, the injection mold filling and the pressure maintaining are carried out according to the time sequence; the process of lightweight and integration of modern factory equipment is built in an assisting manner.

Wherein, this injection moulding equipment 100 includes:

a feeding device (not shown) for supplying the material;

the metering device 2 is used for metering materials according to a preset material proportion;

the feeding device 3 is communicated with the feeding device so as to put and output materials with corresponding proportions;

the material receiving device 4 is communicated with the feeding device 3, and materials of the feeding device 3 are received by the material receiving device 4;

the injection molding device 1 is communicated with the material receiving device 4 to plasticize and melt the polymer to form a melt;

specifically, the type of the feeding device is not limited, and may be any of a belt feeder, a scraper feeder, a bucket feeder, a screw feeder, and a vibration feeder; depending on the type of product to be processed; the type of the material is determined, if the material to be processed is polymer plastic particles, a vibration feeder or a belt feeder can be adopted, and after the material is added to a feeding device, a worker can feed the material automatically by vibration blanking or conveying belt feeding; therefore, the power-assisted automatic production is realized, and persons in the field should understand that the feeding device is a common technical means characteristic in the existing nonstandard design and is a conveying device which is mature in production technology, used and widely used, so that the invention is not over-elaborated on the feeding device.

The metering device 2 may be at least one of a weightlessness scale, a rotation speed detector, a position detector, and a timer, and in a feasible solution provided by the embodiment of the present invention, the feeding device may be a belt feeder, and the metering device 2 employs a rotation speed detector or a weightlessness scale;

the feeding device 3 comprises a plurality of bins for blanking materials; optionally, the number of the first material bin 31 is two, and the first material bin 31 and the second material bin 32 are respectively provided, and the first material bin 31 and the second material bin 32 are vertically arranged to provide two materials for blanking; in more detail, the first bin 31 and the second bin 32 both present a hopper shape to facilitate the falling of the material; it should also be understood by those skilled in the art that modifications to the number of bins to provide more types of material to be dropped or to modify the profile of the bins are also within the scope of the present invention.

Therefore, the injection molding equipment provided by the embodiment of the invention aims to realize the whole process of feeding, material metering, material receiving and injection molding by the same equipment. Specifically, materials, i.e. raw materials required for synthesizing polymers, are introduced from a feeding device to the outside, fall into a feeding device 3, are proportioned by a metering device 2 to a predetermined ratio, are mixed into polymers by a receiving device 4, i.e. polymer particles, generally, the polymers are mixed to form a melt under the heating and pushing of an injection molding device 1, and the melt is plasticized into a product to be manufactured.

Through the scheme, independent processes such as accurate proportioning of the composite material required by the polymer, plasticizing and melting, online compounding and injection are unified into the same equipment, so that the continuous process in time and space is formed, the continuous process is smooth in connection and independent, and the accurate proportioning, plasticizing and melting, online compounding, buffering and storing, injection and mold filling and pressure maintaining of the polymer are carried out according to the time sequence, so that the equipment manufacturing with higher efficiency and lighter weight is realized.

In the embodiment of the present invention, the injection molding apparatus 100 includes a power device 6, the power device 6 is used for providing power for the operation of the whole apparatus, and the power device 6 mainly includes a driving device (not shown) and a gear set (not shown), so as to provide power for the injection molding device 1, the metering device 2, the feeding device 3 and the receiving device 4.

In a development of the present invention, the injection molding apparatus 100 further comprises a particle homogenizing device 5, and the particle homogenizing device 5 is connected to the receiving device 4 and the injection molding device 1, so as to sufficiently refine and average the polymer before injecting the polymer into the injection molding device 1. The situation that the subsequent plasticizing effect is influenced by the conditions of crushing and deformation caused by large shearing force formed in the blanking process due to different sizes of master batch particles of the polymer entering the injection molding device 1 is prevented; the particle homogenizing device 5 can be a horizontal or vertical mixer with a coulter and can also be an ultrasonic refiner. Thereby thinning and homogenizing the plastic particles in the polymer to obtain better plasticizing effect.

In another aspect of the present invention, the injection molding apparatus 100 may further include a particle drying device (not shown), which may be disposed at the passage of the material receiving device 4 to dry the polymer of the material receiving device 4, so as to prevent the polymer from being wet and excessively bonded, further improving the subsequent plasticizing effect, and increasing the reliability and durability of the injection molding apparatus 100.

It is understood that the person skilled in the art of the embodiment of the present invention belongs to non-standard designers, and the particle homogenizing device 5 and the particle drying device belong to common technical features for the person skilled in the art, therefore, it is also understood in the art that the embodiment of the present invention provides only one technical solution, and the position and connection relationship between the particle homogenizing device 5 and the particle drying device are not limited; such as simple modifications and substitutions in the connection relation of the particle homogenizing device 5 and the particle drying device, are also within the scope of the present invention.

The device included in the injection molding apparatus 100 provided by the embodiment of the present invention is described above, and the following describes the scheme of the present invention in detail by using specific embodiments: