CN115890951A - Real-time metering method for extrusion production line - Google Patents
Real-time metering method for extrusion production line Download PDFInfo
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Abstract
The invention relates to a real-time metering method of an extrusion production line, which belongs to the field of extrusion molding processes and comprises the following steps of S1, respectively containing different components of raw materials for extrusion production in different containers, and recording the initial weight of the containers containing the raw materials; s2, conveying the raw materials in the containing containers to the transfer container through the transfer channel, monitoring the real-time weight of the containing containers in real time, calculating the weight of the raw materials conveyed by the containing containers according to the difference value of the initial weight and the real-time weight of the containing containers, and stopping the output of the raw materials of the current containing containers when the weight of the raw materials conveyed by the containing containers reaches a preset value until all the containing containers stop outputting the raw materials. The invention can measure the raw materials entering the stirring container in the process of conveying the raw materials, and can avoid the manual operation of weighing and pouring the raw materials, thereby effectively improving the efficiency of the raw material feeding process.
Description
Technical Field
The invention relates to the field of extrusion molding processes, in particular to a real-time metering method for an extrusion production line.
Background
The extrusion molding is suitable for molding production of thermoplastic plastics, and is also suitable for production of thermosetting and reinforced plastic products with good fluidity. Wherein, before the extrusion processing, the production raw materials (including plastic raw material particles and various additive particles) need to be subjected to a batching operation and added into a screw in an extruder.
In order to improve the efficiency of the batching operation process, the adding proportion of plastic raw material particles and additives is controlled to achieve the purpose of automatic batching while the plastic raw material particles and the additives are conveyed to a stirring cylinder, so as to replace the batching process of manual weighing and material dumping, and further improve the batching efficiency, for example, a patent document with the publication number of CN217072976U discloses an automatic batching system for a plastic flat wire production line, which can control the discharging speed of a first stock bin and the first stock bin through a feeding device and a weighing bin, so that the plastic particles and reinforced master batch are discharged according to a certain proportion, and the batching process of manual carrying, weighing and material dumping is replaced, thereby reducing the labor intensity of workers and improving the batching efficiency. However, in this patent document, the means for controlling the ratio of the plastic particles and the reinforcing master batch entering the stirring cylinder is to control the discharge rate, and the plastic particles and the reinforcing master batch are in a granular form, different from a liquid, and there are gaps between adjacent plastic particles and adjacent reinforcing master batches, so that the discharge rate cannot be accurately controlled by controlling the discharge weight, and therefore, there is a certain error in controlling the ratio of the plastic particles and the reinforcing master batches by controlling the discharge rate, which affects the quality of the final finished product.
Based on the method, the invention provides a real-time metering method for an extrusion production line, which is used for improving the weight accuracy of raw materials added in the batching process, thereby improving the batching efficiency and ensuring the quality of a final finished product.
Disclosure of Invention
Based on this, there is a need for an extrusion line real-time metering method, comprising the steps of,
s1, respectively containing different components of raw materials for extrusion production in different containers, and recording the weight of each container and the initial weight of each container containing the raw materials; wherein, different components of the raw materials for extrusion production comprise plastic raw materials and various additives;
s2, conveying the raw materials in the containing containers to the transfer container through the transfer channel, wherein in the process of conveying the raw materials, monitoring the real-time weight of the containing containers in real time, calculating the weight of the raw materials conveyed by the containing containers according to the difference value of the initial weight and the real-time weight of the containing containers, and stopping the output of the raw materials of the current containing containers when the weight of the raw materials conveyed by the containing containers reaches a preset value until all the containing containers stop outputting the raw materials.
The invention calculates the weight of the raw material conveyed out of the container by measuring the difference between the real-time mass and the initial weight of the container, thereby controlling the weight ratio of the raw material entering the stirring container by controlling the weight of the raw material conveyed out of the container, namely, the invention can control the conveying weight of the raw material by directly measuring the weight of the raw material, and compared with the method for controlling the weight ratio of the raw material entering the stirring container by controlling the discharging speed of the raw material, namely controlling the conveying volume of the raw material, the invention does not need to consider the gaps which are directly existed in the raw material, therefore, the invention has more accurate control on the weight of the raw material and can effectively ensure the quality of the extruded finished product.
In addition, in the process of feeding the raw materials into the stirring container, the raw materials entering the stirring container can be metered in the process of conveying the raw materials, so that the manual operation of weighing and pouring the raw materials can be omitted, and the efficiency of the raw material feeding process can be effectively improved.
Further, the following steps are also included after step S2:
s3, after the stirring of the raw materials of the previous batch is completed by the stirring container, conveying the raw materials collected by the transfer container to the stirring container for stirring, conveying the raw materials to an extrusion device for extrusion molding processing after the stirring is completed, then cutting the raw materials to a required length to obtain a finished product, and counting the obtained finished product;
s4, quality detection is carried out on the extruded finished products, the qualified finished products and the unqualified finished products are conveyed separately, and then the qualified finished products and the unqualified finished products are counted separately.
In the invention, the quantity of finished products, the quantity of qualified finished products and the quality of unqualified finished products are counted while extruding the finished products, so that the production efficiency and the product yield of an extrusion production line can be reflected in real time, and production management personnel can conveniently know the production condition of the extrusion production line at any time. During specific production, the counting information of finished products, qualified finished products and unqualified finished products can be reset when the production teams change the shifts, so that the production efficiency and the product yield of each team during working can be reflected, and the factory management is facilitated.
In addition, the actual production time of the extrusion production line can be timed in the production process of the extrusion production line, and at the moment, the counting information of products, qualified finished products and unqualified finished products is combined, so that the production efficiency and the product yield of the production line in a certain time period can be counted.
Further, if the extruded finished product needs to be subjected to secondary cutting processing, in step S4, after the secondary cutting of the finished product is completed, quality detection of the finished product is performed. Among them, the finished product requiring the secondary cutting is a product requiring the secondary cutting to adjust its size, such as a plastic plate.
In the invention, for the product needing to be cut for the second time, the quality of the finished product is detected after the second cutting so as to detect the unqualified finished product formed in the second cutting process.
Further, step S2 includes a step of comparing the real-time weight of the containing container with the self-weight of the containing container in real time, and when the real-time weight of the containing container is less than 120% of the self-weight of the containing container, a prompt message is sent.
In the invention, the real-time weight of the container minus the weight of the container is the weight of the raw materials in the container, when the real-time weight of the container is less than 120% of the weight of the container, the raw materials in the container are less, new raw materials need to be supplemented, and at the moment, prompt information is sent to prompt production workers, and the prompt information is preferably sound information.
Wherein, to replenish raw materials in the splendid attire container need carry out after the splendid attire container has carried preset amount of raw materials to the transfer container to avoid causing the influence to the measurement of the weight of the raw materials of this splendid attire container output, and need revise the initial weight of this splendid attire container after adding the raw materials.
Further, the containing containers comprise a first containing container and a second containing container, and the transfer channel comprises a first transfer channel and a second transfer channel, wherein plastic raw material particles in the raw material are contained in the first containing container, and different additive powders in the raw material are contained in different second containing containers; in step S2, carry the plastics raw materials granule in the first splendid attire container to the transfer container through first transfer passageway, simultaneously, through connecting gradually of second transfer passageway and second splendid attire container, carry each additive in each second splendid attire container to the transfer container, the weight of the raw materials of carrying away as all second splendid attire containers reaches the default in proper order, and when stopping the output of raw materials, second transfer passageway is connected with first splendid attire container, carry the plastics raw materials granule in the first splendid attire container with first transfer passageway jointly, reach the default until the weight of the raw materials of carrying away of first splendid attire container.
In the invention, the first container is used for containing plastic raw material particles in the raw material, and the second container is used for containing various additives in the raw material, wherein in the extrusion molding process, the weight of the additives in the raw material is far less than that of the plastic raw material particles, so that when the second transfer channel is used for conveying the additives in the second container, after the preset amount of the additives in the second container is conveyed, the first transfer channel cannot convey the plastic raw material particles in the first container, and at the moment, the second transfer channel is communicated with the first container, the conveying speed of the raw material in the first container can be accelerated, so that the speed of conveying the preset amount of the raw material in all containers can be effectively improved, and the efficiency of feeding the raw material into the stirring container can be effectively improved.
Further, in step S4, before performing quality detection on the extruded finished product, the method further includes a step of numbering the extruded finished product: and sequentially marking the number information on the extruded finished product.
In the invention, the number information is marked on the finished product before the quality of the finished product is detected, so that the production sequence of the qualified finished product and the unqualified finished product after separation can be conveniently distinguished after the qualified finished product and the unqualified finished product are conveyed separately, and the equipment state of the extrusion production line can be conveniently analyzed according to the production sequence of the finished product when the extrusion production line needs to be debugged in the follow-up process. Meanwhile, when quality problems which are not detected appear in the finished product batch, the finished products of the batch can be conveniently found.
Furthermore, when the number information is marked, the production time information of the finished product and the corresponding production team information are marked on the finished product.
According to the invention, the production time information and the production team information corresponding to production are marked on the finished product at the same time, so that the finished product with quality problems can be conveniently followed, the reason analysis of the finished product with quality problems can be conveniently carried out, and meanwhile, the production time of each finished product can be conveniently checked at any time. The label information, the production time information and the production team information can be marked on the finished product in a labeling mode, and the marks on the finished product can be removed conveniently in the follow-up process.
The method further comprises the step of displaying yield information of the extrusion production line by using a display screen, wherein the yield information comprises the current quantity information of finished products, the current quantity information of qualified finished products, the current quantity information of unqualified finished products, the current total production time and the weight information of each finished product, the current quantity information of the finished products, the current quantity information of the qualified finished products, the current quantity information of the unqualified finished products and the current total production time are updated on the display screen in real time, and the weight information of each finished product is displayed on the display screen in a rolling manner according to the production sequence.
In the invention, the current finished product quantity information is the total quantity of extruded finished products after counting is started, the current qualified finished product quantity information is the total quantity of extruded qualified finished products after counting is started, and the current unqualified finished product quantity information is the total quantity of unqualified finished products after counting is started; the quantity information of finished products, qualified finished products and unqualified finished products is displayed on the display screen, so that the production information of the extrusion production line can be conveniently known in real time, and meanwhile, the production information of the extrusion production line can be displayed for customers, and the production strength of companies can be displayed. The weight information of the finished product displayed in a rolling mode is the information of the finished product cut at present, and the weight of the produced finished product can be known conveniently in real time.
Further, after the finished product is obtained in step S3, the method further includes the step of sequentially weighing the obtained finished product.
In the present invention, each finished product is weighed and compared with the total weight of the consumed raw materials, so as to know the loss amount of the raw materials in the extrusion line.
The principle and effect of the present invention will be further explained by combining the above technical solutions:
the invention calculates the weight of the raw material conveyed from the container by measuring the difference between the real-time mass and the initial weight of the container, thereby controlling the weight ratio of the raw material entering the stirring container by controlling the weight of the raw material conveyed from the container, namely, the invention can control the conveying weight of the raw material by directly measuring the weight of the raw material. In addition, in the process of feeding the raw materials into the stirring container, the raw materials entering the stirring container can be metered in the process of conveying the raw materials, so that the manual operation of weighing and pouring the raw materials can be omitted, and the efficiency of the raw material feeding process can be effectively improved.
Detailed Description
In order to facilitate understanding for those skilled in the art, the present invention will be described in further detail below with reference to examples:
a real-time metering method for an extrusion production line comprises the following steps,
s1, respectively containing different components of raw materials for extrusion production in different containers, and recording the weight of each container and the initial weight of each container containing the raw materials; wherein, different components of the raw materials for extrusion production comprise plastic raw materials and various additives;
s2, conveying the raw materials in the containers to a transfer container through a transfer channel, wherein in the process of conveying the raw materials, real-time weight of the containers is monitored in real time, the weight of the raw materials conveyed out by the containers is calculated according to the difference value of the initial weight and the real-time weight of the containers, and when the weight of the raw materials conveyed out by the containers reaches a preset value, the raw material output of the current containers is stopped until all the containers stop outputting the raw materials.
The invention calculates the weight of the raw material conveyed from the container by measuring the difference between the real-time mass and the initial weight of the container, thereby controlling the weight ratio of the raw material entering the stirring container by controlling the weight of the raw material conveyed from the container, namely, the invention can control the conveying weight of the raw material by directly measuring the weight of the raw material.
In addition, in the process of feeding the raw materials into the stirring container, the raw materials entering the stirring container can be metered in the process of conveying the raw materials, so that the manual operation of weighing and pouring the raw materials can be omitted, and the efficiency of the raw material feeding process can be effectively improved.
In one embodiment, after step S2, the following steps are further included:
s3, after the stirring of the raw materials of the previous batch is completed by the stirring container, conveying the raw materials collected by the transfer container to the stirring container for stirring, conveying the raw materials to an extrusion device for extrusion molding processing after the stirring is completed, then cutting the raw materials to a required length to obtain a finished product, and counting the obtained finished product;
s4, quality detection is carried out on the extruded finished products, the qualified finished products and the unqualified finished products are conveyed separately, and then the qualified finished products and the unqualified finished products are counted separately.
In the embodiment, the quantity of finished products, the quantity of qualified finished products and the quality of unqualified finished products are counted while the finished products are extruded, so that the production efficiency and the product yield of the extrusion production line can be reflected in real time, and production management personnel can know the production condition of the extrusion production line at any time conveniently. During specific production, the counting information of finished products, qualified finished products and unqualified finished products can be reset when the production teams change the shifts, so that the production efficiency and the product yield of each team can be reflected, and the factory management is facilitated.
In addition, the actual production time of the extrusion production line can be timed in the production process of the extrusion production line, and at the moment, the counting information of products, qualified finished products and unqualified finished products is combined, so that the production efficiency and the product yield of the production line in a certain time period can be counted.
In one embodiment, if the extruded finished product needs to be cut twice, in step S4, after the secondary cutting of the finished product is completed, the quality of the finished product is detected. Among them, the finished product requiring the secondary cutting is a product requiring the secondary cutting to adjust its size, such as a plastic plate.
In this embodiment, for a product that needs to be cut twice, the quality of the finished product is detected after the secondary cutting, so as to detect an unqualified finished product formed in the secondary cutting process.
In one embodiment, step S2 further includes a step of comparing the real-time weight of the container with the self-weight of the container in real time, and when the real-time weight of the container is less than 120% of the self-weight of the container, a prompt message is sent.
In this embodiment, the real-time weight of the container minus the weight of the container is the weight of the raw material in the container, and when the real-time weight of the container is less than 120% of the weight of the container, it indicates that the raw material in the container is less and new raw material needs to be supplemented, and at this time, prompt information is sent to prompt a production worker, and the prompt information is preferably sound information.
Wherein, to replenish raw materials in the splendid attire container need carry out after the splendid attire container has carried preset amount of raw materials to the transfer container to avoid causing the influence to the measurement of the weight of the raw materials of this splendid attire container output, and need revise the initial weight of this splendid attire container after adding the raw materials.
In one embodiment, the container comprises a first container and a second container, and the transfer passage comprises a first transfer passage and a second transfer passage, wherein plastic raw material particles in the raw material are contained in the first container, and different additive powders in the raw material are contained in different second containers; in the step S2, the plastic raw material particles in the first container are conveyed to the transfer container through the first transfer channel, meanwhile, the second transfer channel is sequentially connected with the second containers to convey additives in the second containers to the transfer container, when the weight of the raw material conveyed out by all the second containers sequentially reaches a preset value, and the output of the raw material is stopped, the second transfer channel is connected with the first containers and conveys the plastic raw material particles in the first containers together with the first transfer channel until the weight of the raw material conveyed out by the first containers reaches the preset value.
In this embodiment, the first container is used for containing plastic raw material particles in the raw material, and the second container is used for containing various additives in the raw material, wherein in the extrusion molding process, the weight of the additives in the raw material is much less than that of the plastic raw material particles, so that when the second transfer channel is used for transferring the additives in the second container, after the preset amount of the additives in the second container is transferred, the first transfer channel cannot transfer the plastic raw material particles in the first container, and at this time, the second transfer channel is communicated with the first container, so that the transfer speed of the raw material in the first container can be accelerated, the speed of transferring the preset amount of the raw material in all the containers can be effectively increased, and the efficiency of feeding the raw material into the stirring container can be effectively increased.
In one embodiment, step S4 further includes, before performing quality detection on the extruded finished product, a step of numbering the extruded finished product: and sequentially marking the number information on the extruded finished product.
In the embodiment, the number information is marked on the finished product before the quality of the finished product is detected, so that the production sequence of the qualified finished product and the unqualified finished product after separation can be conveniently distinguished after the qualified finished product and the unqualified finished product are conveyed separately in the follow-up process, and the equipment state of the extrusion production line can be conveniently analyzed according to the production sequence of the finished product when the extrusion production line needs to be debugged in the follow-up process. Meanwhile, when quality problems which are not detected appear in the finished product batch, the finished products of the batch can be conveniently found.
In one embodiment, the production time information and the corresponding production team group information of the finished product are marked on the finished product while the number information is marked on the finished product.
In the embodiment, the production time information and the production team group information corresponding to production are marked on the finished product at the same time, so that follow-up responsibility tracing on the finished product with quality problems can be facilitated, reason analysis on the finished product with quality problems can be facilitated, and meanwhile, the production time of each finished product can be checked at any time. The label information, the production time information and the production team information can be marked on the finished product in a labeling mode, and the marks on the finished product can be removed conveniently in the follow-up process.
One embodiment of the method further comprises the step of displaying the yield information of the extrusion production line by using a display screen, wherein the yield information comprises the current quantity information of finished products, the current quantity information of qualified finished products, the current quantity information of unqualified finished products, the current total production time and the weight information of each finished product, the current quantity information of finished products, the current quantity information of qualified finished products, the current quantity information of unqualified finished products and the current total production time are updated on the display screen in real time, and the weight information of each finished product is displayed on the display screen in a rolling manner according to the production sequence.
In this embodiment, the current information on the number of finished products is the total number of extruded finished products after counting is started, the current information on the number of qualified finished products is the total number of extruded qualified finished products after counting is started, and the current information on the number of unqualified finished products is the total number of unqualified finished products after counting is started; the quantity information of finished products, qualified finished products and unqualified finished products is displayed on the display screen, so that the production information of the extrusion production line can be conveniently known in real time, and meanwhile, the production information of the extrusion production line can be displayed for customers, and the production strength of companies can be displayed. The weight information of the finished product displayed in a rolling mode is the information of the finished product cut at present, and the weight of the produced finished product can be known conveniently in real time.
In one embodiment, after the finished product is obtained in step S3, the method further includes the step of sequentially weighing the obtained finished product.
In this example, each finished product was weighed, and then compared with the total weight of the consumed raw materials, so as to know the amount of the raw materials lost in the extrusion line.
The above examples only show several embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent should be subject to the appended claims.
Claims (9)
1. A real-time metering method of an extrusion production line is characterized by comprising the following steps,
s1, respectively containing different components of raw materials for extrusion production in different containers, and recording the weight of each container and the initial weight of each container containing the raw materials;
s2, conveying the raw materials in the containers to a transfer container through a transfer channel, wherein in the process of conveying the raw materials, real-time weight of the containers is monitored in real time, the weight of the raw materials conveyed out by the containers is calculated according to the difference value of the initial weight and the real-time weight of the containers, and when the weight of the raw materials conveyed out by the containers reaches a preset value, the raw material output of the current containers is stopped until all the containers stop outputting the raw materials.
2. The real-time metering method for the extrusion line according to claim 1, wherein the step S2 is followed by the following steps:
s3, after the stirring of the raw materials of the previous batch is completed by the stirring container, conveying the raw materials collected by the transfer container to the stirring container for stirring, conveying the raw materials to an extrusion device for extrusion molding after the stirring is completed, then cutting the raw materials to a required length to obtain a finished product, and counting the obtained finished product;
and S4, performing quality detection on the extruded finished product, conveying the qualified finished product and the unqualified finished product separately, and then counting the qualified finished product and the unqualified finished product separately.
3. The real-time measuring method for the extrusion production line according to claim 2, wherein if the extruded finished product needs to be cut for the second time, in step S4, the quality of the finished product is detected after the finished product is cut for the second time.
4. The real-time metering method of the extrusion production line according to claim 2 or 3, wherein the step S2 further comprises the step of comparing the real-time weight of the container with the self-weight of the container in real time, and when the real-time weight of the container is less than 120% of the self-weight of the container, a prompt message is sent.
5. An extrusion line real-time metering method as claimed in claim 2 or 3, wherein the container comprises a first container and a second container, and the transfer passage comprises a first transfer passage and a second transfer passage, wherein plastic raw material particles in the raw material are contained in the first container, and different additive powder in the raw material is contained in the different second container;
in the step S2, the plastic raw material particles in the first container are conveyed to the transfer container through the first transfer channel, meanwhile, the second transfer channel is sequentially connected with the second containers to convey additives in the second containers to the transfer container, when the weight of the raw material conveyed out by all the second containers sequentially reaches a preset value, and the output of the raw material is stopped, the second transfer channel is connected with the first containers and conveys the plastic raw material particles in the first containers together with the first transfer channel until the weight of the raw material conveyed out by the first containers reaches the preset value.
6. The real-time metering method for the extrusion production line as claimed in claim 5, wherein in the step S4, before the quality detection of the extruded finished product, the method further comprises the step of numbering the extruded finished product: and sequentially marking the number information on the extruded finished product.
7. The real-time metering method for the extrusion line of claim 6, wherein the production time information of the finished product and the corresponding production team information are marked on the finished product while the number information is marked on the finished product.
8. The real-time extrusion line metering method as claimed in claim 6, further comprising the step of displaying the output information of the extrusion line by using a display screen, wherein the output information comprises the information of the current number of finished products, the information of the current number of qualified finished products, the information of the current number of unqualified finished products, the current total production time, and the weight information of each finished product, wherein the information of the current number of finished products, the information of the current number of qualified finished products, the information of the current number of unqualified finished products, and the current total production time are updated on the display screen in real time, and the weight information of each finished product is displayed on the display screen in a rolling manner according to the production sequence.
9. The real-time metering method for the extrusion production line according to claim 3, wherein in the step S3, after the finished product is obtained, the method further comprises the step of sequentially weighing the obtained finished product.
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