Wire drawing device with automatic feeding structure for plastic particle processing

Abstract

The invention relates to a plastic particle processing wire drawing device with an automatic feeding structure, which is applied to the field of plastic processing, and comprises a device body and a feeding auxiliary monitoring unit which is carried in a control box and is in signal connection with a control system, through cooperation of a feeding auxiliary monitoring unit, an assembly auxiliary regulation and control pipe and a state triggering assembly, on one hand, the negative pressure state change in an assembly sealing feeding hopper is monitored in real time, a corresponding deformation response mechanism is triggered, and therefore the gas content state of plastic particles is accurately sensed; on the other hand, when a negative pressure abnormal feedback signal is detected, an auxiliary exhaust regulation and control program in the sealed feeding hopper of the assembly can be started in real time, the residence time of air in the sealed feeding hopper is effectively shortened, the phenomenon of accompanying downward feeding is inhibited, a dynamic protection barrier is built for the feeding process, and the feeding efficiency is improved. And the economical efficiency and reliability of plastic filament processing as well as the quality stability and production continuity of a subsequent wire drawing procedure are improved.

Description

Technical Field

[0001] The wire drawing device for plastic processing involved in the present invention, in particular, relates to a wire drawing device for plastic particle processing with an automatic feeding structure applied in the plastic processing field. Background Art

[0002] The wire drawing device for plastic particle processing is a device that melts, extrudes, and stretches plastic particles into fine filaments, and is widely used in the production of products such as textile fibers, ropes, packing tapes, and plastic nets. The device mainly consists of a feeding system, an extrusion system, a wire drawing and forming assembly, a cooling system, a traction and stretching device, a winding system, and a control system. Its operation process is as follows: Plastic particles are conveyed to the extrusion system through the feeding system, and after being melted and plasticized, they enter the wire drawing and forming assembly to form fine filaments; the cooling system performs shaping treatment on the primary fine filaments, and then the traction and stretching device realizes directional stretching; finally, the winding system completes the collection of finished products. The control system ensures the monitorability and stability of the entire process by automatically adjusting key data such as the feeding speed, melting temperature, extrusion rate, stretching parameters, and cooling conditions.

[0003] In practical applications, there are significant technical limitations in existing plastic wire drawing devices. Firstly, the device has strict requirements for the properties of raw materials and is difficult to effectively process recycled plastics, resulting in limited applicability of the device, increased production costs, and low utilization rate of recycled resources. Secondly, the problem of air mixing during the feeding process has not been effectively controlled. When excessive air is entrained in plastic particles, bubbles are easily formed inside the molten plastic, causing rupture or uneven shrinkage during the stretching stage, resulting in a rough surface, diameter fluctuations, or even wire breakage of the fine filaments. In addition, the melt pressure fluctuations caused by bubbles will interfere with the wire drawing stability of the die, further reducing the processing quality and production efficiency and weakening the economic benefits of the device.

[0004] Regarding the problem of raw material adaptability, the specification of Chinese Patent Application CN115990992A discloses a plastic wire drawing machine that uses a multi-layer co-extrusion technology. By setting a multi-screw extrusion mechanism and a distributor, an adjustable layered material flow channel is constructed, and the thickness of each layer of material is precisely controlled by cooperating with a shut-off rod and a swing blade adjusting block. The core of its technology lies in: a multi-layer material flow channel is arranged inside the distributor, the angle of the shut-off rod is controlled by a corner adjustment mechanism, the material distribution of adjacent channels is adjusted by the deflection of the swing blade adjusting block, and finally, the multi-layer materials are converged through the left and right distribution rods. It focuses on solving the problem of composite co-extrusion of recycled plastics and virgin plastics, and broadens the scope of raw material application through a layered design, improving the utilization rate of recycled materials.

[0005] In order to solve the problem of air mixing during the feeding process, the plastic wire drawing device in the existing technology replaces the feeding mechanism with a vacuum feeding dryer, and uses the negative pressure principle to realize the transportation of plastic particles. In this way, while achieving dust-free transportation and dry material transportation, it can also effectively reduce the amount of air mixing during the feeding process, reduce the generation of bubbles, and effectively promote the processing quality and efficiency of the plastic wire drawing device for plastic particles.

[0006] However, while the aforementioned patented technology effectively improves raw material compatibility and air incorporation, it fails to address the real-time monitoring of air incorporation during the feeding process. For lightweight or small-sized plastic particles (such as PP and PE), even negative pressure conveying can trap air between particles, and improper sealing of the feeding system can easily lead to the formation of bubbles. Consequently, the ability to monitor and effectively regulate the air incorporation status of the feeding system during the operation of a plastic wire drawing device to ensure subsequent wire drawing quality and operational stability, while promoting the economic and reliable processing of plastic filaments, remains a pressing technical challenge. Summary of the Invention

[0007] In view of the above-mentioned existing technology, the technical problem to be solved by the present invention is to be able to monitor and effectively control the air mixing state of its feeding system in real time during the operation of the plastic drawing device, so as to ensure the quality and operation stability of subsequent drawing and promote the economy and reliability of plastic filament processing.

[0008] To solve the above problems, the present invention provides a wire drawing device for processing plastic particles with an automatic feeding structure, comprising a device body and a feeding auxiliary monitoring unit mounted in a control box and connected to the control system signal. The automatic feeding system is provided on the right side of the device body, and a sealed feeding hopper that cooperates with the automatic feeding system is provided on the upper side of the device body. The upper end of the sealed feeding hopper is fixedly connected to a feeding pipe connected thereto, a feeding state sensing component is provided on the upper side of the feeding pipe, a state triggering component is provided in the feeding state sensing component, and an auxiliary control pipe connected thereto is installed on the upper end of the feeding state sensing component; The feeding auxiliary monitoring unit includes a feeding data monitoring and processing module, the input end of the feeding data monitoring and processing module is connected to the feeding parameter acquisition module and the negative pressure trigger sensing module, and the output end of the feeding data monitoring and processing module is connected to the feeding state feedback module and the auxiliary exhaust control module; The input end of the feeding parameter acquisition module is connected to the control system signal, the input end of the negative pressure trigger sensing module is connected to the state trigger component signal, the output end of the feeding state feedback module is connected to the control system signal, and the output end of the auxiliary exhaust control module is connected to the auxiliary control pipe signal.

[0009] In the above-mentioned wire drawing device for plastic particle processing with an automatic feeding structure, on the one hand, by real-time monitoring the change of the negative pressure state in the sealed feeding hopper, a corresponding deformation response mechanism is triggered, so as to accurately sense the gas content state of the plastic particles; on the other hand, when an abnormal negative pressure feedback signal is detected, the auxiliary exhaust control program in the sealed feeding hopper can be immediately started to build a dynamic protection barrier for the feeding process.

[0010] As a supplement to the present application, the feeding state sensing assembly includes an induction hopper fixedly installed at the upper end of the feeding pipe and communicating with the feeding pipe. The upper end of the induction hopper is fixedly connected with an elastic imaging sleeve communicating with it. The upper end of the elastic imaging sleeve is fixedly connected with an induction floating plate. The outer end of the induction hopper is fixedly connected with a plurality of floating guide rods. The upper ends of the floating guide rods penetrate through the induction floating plate and are in sliding fit with the induction floating plate.

[0011] As a supplement to the present application, the upper end of the induction floating plate is fixedly connected with a sealing connection block. An auxiliary control pipe is embedded in the sealing connection block, and the lower end of the auxiliary control pipe communicates with the elastic imaging sleeve. The upper end of the auxiliary control pipe extends to the outside of the sealing connection block and is fixedly connected with an exhaust pump. A one-way exhaust valve is fixedly installed on the outer end of the auxiliary control pipe. The output end of the auxiliary exhaust control module is respectively signal-connected to the exhaust pump and the one-way exhaust valve.

[0012] As a supplement to the present application, the state trigger assembly includes a trigger gasket and a trigger ring. Trigger gaskets are fixedly connected to the upper and lower ends of the inner wall of the elastic imaging sleeve. Trigger rings are fixedly connected to the closer ends of the two trigger gaskets. The input end of the negative pressure trigger sensing module is signal-connected to the trigger ring.

[0013] As a supplement to the present application, the output end of the feeding data monitoring and processing module is also connected to an auxiliary control abnormal module, and the output end of the auxiliary control abnormal module is signal-connected to the control system.

[0014] As a further improvement of the present application, a limit block is fixedly connected to the upper end of the floating guide rod, an extreme touch block is fixedly connected to the lower end of the limit block, and a butting block cooperating with the extreme touch block is fixedly connected to the upper end of the induction floating plate. The input end of the feeding data monitoring and processing module is also connected to an extreme abnormal trigger module, and the input end of the extreme abnormal trigger module is signal-connected to the extreme touch block.

[0015] As a further further improvement of the present application, a trigger spring sleeved on the outside of the trigger ring is also fixedly connected between the two trigger gaskets. When there is no external force, both the elastic imaging sleeve and the trigger spring are in an extended deformation state. When the sealed feeding hopper is in a vacuum feeding state, both the elastic imaging sleeve and the trigger spring are in a contracted state.

[0016] As a further improvement of the present application, the right end of the feeding pipe is fixedly connected to a conveying pipe that is in communication with it, and the right end of the conveying pipe is in communication and cooperation with the automatic feeding system. A feeding control valve is fixedly installed on the feeding pipe, and an infrared induction probe is fixedly installed on the inner wall of the upper part of the sealed feeding hopper; The input end of the feeding data monitoring and processing module is further connected to a hopper remaining amount acquisition module. The input end of the hopper remaining amount acquisition module is signal-connected to the infrared induction probe. The output end of the feeding data monitoring and processing module is connected to a collaborative feeding control module, and the output end of the collaborative feeding control module is signal-connected to the feeding control valve.

[0017] As another improvement of the present application, the lower end of the sealed feeding hopper is fixedly connected to a feeding pipe that is in communication with it, and the lower end of the feeding pipe extends into the device body. A feeding control valve is fixedly installed on the feeding pipe. The output end of the feeding data monitoring and processing module is further connected to a collaborative feeding control module, and the output end of the collaborative feeding control module is signal-connected to the feeding control valve.

[0018] In summary, through the collaborative cooperation of the feeding auxiliary monitoring unit, the component auxiliary control pipe, and the state triggering component, the dual functions of real-time monitoring and intelligent control of the air mixing state of the feeding system can be achieved. On the one hand, by real-time monitoring the change of the negative pressure state in the sealed feeding hopper of the real-time monitoring component, the corresponding deformation response mechanism is triggered, so as to accurately sense the air content state of the plastic particles; on the other hand, when the abnormal negative pressure feedback signal is detected, the auxiliary exhaust control program in the sealed feeding hopper of the component can be immediately started, effectively reducing the residence time of air in the sealed feeding hopper and suppressing the phenomenon of accompanied downward feeding, building a dynamic protection barrier for the feeding process. Furthermore, it can not only significantly reduce the bubble generation rate in the melting process, but also improve the economy and reliability of plastic filament processing, thus ensuring the quality stability and production continuity of the subsequent wire drawing process of the device body. Description of the Drawings

[0019] Figure 1 It is a topological diagram of the cooperation between the device body and the feeding auxiliary monitoring unit of the 1st - 3rd implementation manners of the present application; Figure 2 It is a control logic diagram of the feeding auxiliary monitoring unit of the 2nd and 3rd implementation manners of the present application; Figure 3 It is an exploded view of the cooperation between the sealed feeding hopper, the feeding state induction component, and the state triggering component of the 2nd and 3rd implementation manners of the present application; Figure 4 It is an isometric view when the feeding state is abnormal and needs to be regulated in the 2nd and 3rd implementation manners of the present application; Figure 5 It is an isometric view when the regulation of the abnormal feeding state is ineffective in the 2nd and 3rd implementation manners of the present application; Figure 6Axonometric sectional view of the sealed loading hopper, the feeding state sensing component and the state triggering component during normal feeding for the second and third embodiments of the present application; Figure 7 Axonometric sectional view of the sealed loading hopper, the feeding state sensing component and the state triggering component during abnormal regulation of the feeding state and stopping feeding for the second and third embodiments of the present application; Figure 8 Axonometric sectional view of the sealed loading hopper, the feeding state sensing component and the state triggering component during abnormal regulation of the feeding state and normal feeding for the second and third embodiments of the present application; Figure 9 Axonometric sectional view of the sealed loading hopper, the feeding state sensing component and the state triggering component when the abnormal regulation of the feeding state for the second and third embodiments of the present application is ineffective.

[0020] Description of the reference numerals in the figure: 1 Device body, 2 Automatic feeding system, 3 Sealed loading hopper, 31 Feed pipe, 32 Feeding pipe, 33 Delivery pipe, 4 Feeding state sensing component, 41 Sensing hopper, 42 Elastic imaging sleeve, 43 Sensing floating plate, 44 Floating guide rod, 5 Auxiliary regulation pipe, 51 Sealed connecting block, 6 State triggering component, 61 Triggering gasket, 62 Triggering ring, 63 Triggering spring. Detailed implementation manners

[0021] The following will describe in detail the three embodiments of the present application with reference to the accompanying drawings.

[0022] The first embodiment: Figure 1 A wire drawing device for plastic particle processing with an automatic feeding structure is shown, including a device body 1 and a control system installed in its control box. An automatic feeding system 2 is provided on the right side of the device body 1, and a sealed loading hopper 3 cooperating with the automatic feeding system 2 is provided on the upper side of the device body 1. The automatic feeding system 2 is a pneumatic vacuum feeding machine equipped with an electric heating wire dryer, which can suck and convey the mixed plastic particles to the sealed loading hopper 3 through negative pressure. The lower end of the sealed loading hopper 3 is fixedly connected to a feed pipe 31 communicating with it, and the lower end of the feed pipe 31 extends into the device body 1. The plastic particles enter the extrusion system of the device body 1 through the sealed loading hopper 3 and the feed pipe 31 for melting.

[0023] An extrusion system is provided at the lower end of the sealed loading hopper 3, and the extrusion system cooperates with the feed pipe 31. A wire drawing forming component cooperating with it is provided on the left side of the extrusion system, a cooling system cooperating with it is provided on the left side of the wire drawing forming component, a traction and stretching device is provided on the left side of the cooling system, and a winding system is provided on the left side of the traction and stretching device.

[0024] It should be noted that the automatic feeding system 2, extrusion system, wire drawing and forming assembly, cooling system, traction and stretching device, winding system, and control system directly refer to the structures and systems of the device body 1 in the prior art. No structural or principle changes have been made to them here, so no further elaboration will be provided. Those skilled in the art can select them as needed. Specifically, the extrusion system mainly includes a heating cylinder (barrel): wrapped around the screw, heating and melting plastic particles through electric heating or heat-conducting oil; a screw: divided into a conveying section (pushing particles), a compression section (compacting the melt), and a homogenizing section (equalizing the melt pressure and temperature); a filter screen / plate: removing impurities to ensure the purity of the melt (different-mesh filter elements can be replaced). The wire drawing and forming assembly mainly includes a die (spinneret plate): the melt forms continuous filaments through the micropores of the die (the pore diameter determines the diameter of the filaments); a die lip adjusting device: adjusting the width of the die orifice to control the uniformity and dimensional accuracy of the filaments. The cooling system mainly includes an air-cooling device: rapidly cooling the filaments through a high-speed air flow (fan or air ring), suitable for crystalline materials (such as PP, PE); or a water-cooling tank: immersion cooling, used for non-crystalline or slow-crystalline materials (such as PET), and the water temperature needs to be controlled to prevent stress caused by sudden cooling. The traction and stretching device mainly includes a traction roller group: multiple rollers clamp the wire by friction or clamping to provide a stable traction force; a stretching mechanism: directionally stretching the wire through a speed-regulating roller or a differential roller group (such as a stretching ratio of 3 - 7 times) to improve molecular orientation and strength. The winding system mainly includes a winding device: neatly winding the stretched wire into a roll, equipped with a tension controller to prevent slack or breakage; a cutting knife (optional): some equipment integrates a cutting function to directly produce a filament bundle of a fixed length. The control system mainly includes a temperature control module: real-time monitoring and adjusting the temperatures of the heating cylinder, die, and cooling system; a speed synchronization system: coordinating the screw speed, traction speed, and winding speed to ensure a consistent wire diameter; a human-machine interface (HMI): touch screen or PLC programming to achieve parameter setting, fault alarm, and data recording; an extended data interface: used to connect other intelligent units for data interaction.

[0025] The second implementation mode: Figure 1 - Figure 9 A wire drawing device for plastic particle processing with an automatic feeding structure is shown, including a device body 1 and a feeding auxiliary monitoring unit mounted in a control box and signal-connected to the control system. An automatic feeding system 2 is arranged on the right side of the device body 1, and a sealed feeding hopper 3 cooperating with the automatic feeding system 2 is arranged on the upper side of the device body 1; The upper end of the sealed feeding hopper 3 is fixedly connected to a feeding pipe 32 communicating with it. A feeding state sensing assembly 4 is arranged on the upper side of the feeding pipe 32. A state triggering assembly 6 is arranged inside the feeding state sensing assembly 4. An auxiliary control pipe 5 communicating with it is installed at the upper end of the feeding state sensing assembly 4; The feeding auxiliary monitoring unit includes a feeding data monitoring and processing module. The input end of the feeding data monitoring and processing module is connected with a feeding parameter acquisition module and a negative pressure trigger induction module, and the output end of the feeding data monitoring and processing module is connected with a feeding state feedback module and an auxiliary exhaust regulation module; The input end of the feeding parameter acquisition module is signal-connected to the control system, the input end of the negative pressure trigger induction module is signal-connected to the state trigger component 6, the output end of the feeding state feedback module is signal-connected to the control system, and the output end of the auxiliary exhaust regulation module is signal-connected to the auxiliary regulation pipe 5. Through the coordinated cooperation of the feeding auxiliary monitoring unit with the component auxiliary regulation pipe 5 and the state trigger component 6, the dual functions of real-time monitoring and intelligent regulation of the air mixing state of the feeding system can be realized. On the one hand, by real-time monitoring the change of the negative pressure state in the sealed feeding hopper 3 of the component, the corresponding deformation response mechanism is triggered, so as to accurately sense the gas content state of the plastic particles; on the other hand, when the negative pressure abnormal feedback signal is detected, the auxiliary exhaust regulation program in the sealed feeding hopper 3 of the component can be immediately started, effectively reducing the residence time of air in the sealed feeding hopper 3 and suppressing the phenomenon of accompanied downward feeding, and building a dynamic protection barrier for the feeding process. Furthermore, it can not only significantly reduce the bubble generation rate in the melting link, but also improve the economy and reliability of plastic filament processing, thus ensuring the quality stability and production continuity of the subsequent wire drawing process of the device body 1.

[0026] Figure 3 - Figure 9 It is shown that the feeding state induction component 4 includes an induction hopper 41 fixedly installed at the upper end of the feeding pipe 32 and communicated with the feeding pipe 32. The upper end of the induction hopper 41 is fixedly connected with an elastic imaging sleeve 42 communicated with it, the upper end of the elastic imaging sleeve 42 is fixedly connected with an induction floating plate 43, and the outer end of the induction hopper 41 is fixedly connected with a plurality of floating guide rods 44. The upper ends of the floating guide rods 44 penetrate through the induction floating plate 43 and are in sliding fit with the induction floating plate 43. The cooperation of the elastic imaging sleeve 42, the induction floating plate 43 and the floating guide rods 44 can not only effectively realize the real-time monitoring of the negative pressure state in the sealed feeding hopper 3, but also effectively produce the state imaging effect through the deformation of the elastic imaging sleeve 42, which is convenient for production personnel to observe the feeding state in time and take effective emergency protection measures.

[0027] Figure 2 - Figure 9It is shown that a limit block is fixedly connected to the upper end of the floating guide rod 44, an extreme contact block is fixedly connected to the lower end of the limit block, a contact block that cooperates with the extreme contact block is fixedly connected to the upper end of the induction floating plate 43, the input end of the feeding data monitoring and processing module is further connected to an extreme anomaly triggering module, the input end of the extreme anomaly triggering module is signal-connected to the extreme contact block. The setting of the extreme anomaly triggering module can, on the one hand, further display anomalies in the state of the sealed feeding hopper 3, facilitate the feeding data monitoring and processing module to judge the urgency of negative pressure anomalies, effectively display abnormal data to production personnel or technicians, and promote the effectiveness of subsequent abnormal response measures. On the other hand, it can also verify and feedback the dynamic protection and regulation measures, display the effectiveness of the auxiliary exhaust regulation function, promote the efficiency of abnormal data induction, shorten the time limit of abnormal feedback, so as to promote the timeliness and effectiveness of subsequent emergency responses and reduce the economic losses caused by continuous anomalies.

[0028] Figure 3 - Figure 9 It is shown that a sealing connecting block 51 is fixedly connected to the upper end of the induction floating plate 43, an auxiliary regulation pipe 5 is embedded in the sealing connecting block 51, and the lower end of the auxiliary regulation pipe 5 is connected to the elastic imaging sleeve 42. The upper end of the auxiliary regulation pipe 5 extends to the outside of the sealing connecting block 51 and is fixedly connected to an exhaust pump. A one-way exhaust valve is fixedly installed on the outer end of the auxiliary regulation pipe 5. The output end of the auxiliary exhaust regulation module is respectively signal-connected to the exhaust pump and the one-way exhaust valve. The settings of the auxiliary exhaust regulation module, the exhaust pump and the one-way exhaust valve can, when a negative pressure anomaly occurs in the sealed feeding hopper 3, timely perform an auxiliary exhaust function on its interior, thereby avoiding the retention of air in the sealed feeding hopper 3, further effectively avoiding the accompanying downward movement of air, suppressing the generation of subsequent molten bubbles, and effectively ensuring the quality stability and production continuity of plastic filaments through the intelligent auxiliary regulation function in the initial stage of anomalies.

[0029] Figure 3 - Figure 9 It is shown that the state triggering component 6 includes a trigger gasket 61 and a trigger ring 62. Trigger gaskets 61 are fixedly connected to both the upper and lower ends of the inner wall of the elastic imaging sleeve 42. Trigger rings 62 are fixedly connected to one end of the two trigger gaskets 61 that are close to each other. The input end of the negative pressure trigger induction module is signal-connected to the trigger ring 62. The cooperation of the negative pressure trigger induction module and the trigger ring 62 can monitor and transmit data on the negative pressure state of the sealed feeding hopper 3, facilitate the real-time monitoring of feeding data, and then be able to sense data on air mixing in the initial stage of anomalies, promote the timeliness of auxiliary exhaust regulation, further ensure the production quality of the device body 1, avoid the generation of bubbles, promote the timely imaging of the air mixing amount during feeding and poor feeding sealing, achieve the timeliness of abnormal monitoring, avoid the data lag in feedback through the quality change of plastic filaments, reduce cost losses, and promote the economic benefits of the device body 1 in processing plastic particles.

[0030] Figure 3 - Figure 9 It is shown that a trigger spring 63 which is sleeved outside the trigger ring 62 in a sliding manner is also fixedly connected between two trigger gaskets 61. When there is no external force, both the elastic imaging sleeve 42 and the trigger spring 63 are in an extended deformation state. When in the vacuum feeding state in the sealed feeding hopper 3, both the elastic imaging sleeve 42 and the trigger spring 63 are in a contracted state. The elastic deformation effects of the elastic imaging sleeve 42 and the trigger spring 63 cooperate with the negative pressure state in the sealed feeding hopper 3 in a balanced manner, which can realize the real-time monitoring of the state in the sealed feeding hopper 3 and the function of data feedback, effectively promoting the timeliness and effectiveness of the monitoring data and promoting the timeliness of abnormal response.

[0031] Figure 2 It is shown that the output end of the feeding data monitoring and processing module is also connected to the auxiliary regulation and abnormality module, and the output end of the auxiliary regulation and abnormality module is signal-connected to the control system. The setting of the auxiliary regulation and abnormality module can transmit an abnormal alarm signal in time after the auxiliary exhaust regulation fails, prompting the control system to generate corresponding emergency response measures, and reminding production personnel or technical personnel to perform manual intervention emergency, reducing the economic losses caused by continuous abnormalities.

[0032] Figure 1 - Figure 9 It is shown that during the application of the device body 1, the feeding parameter acquisition module uses the extended data interface to acquire the feeding parameters set by technical personnel in the control system for processing plastic particles by the device body 1. These parameters include but are not limited to feeding speed, negative pressure data of the automatic feeding system 2, operation data of the automatic feeding system 2, negative pressure standard in the sealed feeding hopper 3, flow rate of the feeding pipe 31, and extrusion speed of the extrusion system and other related data, and then transmits them to the feeding data monitoring and processing module after conversion, so that the feeding data monitoring and processing module can regulate the subsequent auxiliary exhaust program according to the obtained parameter data.

[0033] During the normal feeding process, the one-way exhaust valve on the auxiliary regulation pipe 5 is in a normally closed state, the feeding regulation valve on the feeding pipe 31 is in a normally open state, and the feeding regulation valve on the conveying pipe 33 opens and closes synchronously according to the feeding parameter settings for the feeding state of the automatic feeding system 2. When the automatic feeding system 2 is in the feeding state, the feeding regulation valve opens, and when the automatic feeding system 2 is in the non-feeding state, the feeding regulation valve closes.

[0034] When the negative pressure state in the sealed feeding hopper 3 is normal, the negative pressure state will cause the elastic imaging sleeve 42 to contract and deform. The elastic imaging sleeve 42 and the trigger spring 63 are both in a contracted state. And due to the contraction of the elastic imaging sleeve 42 and the trigger spring 63, the two trigger gaskets 61 will approach each other, and the two trigger rings 62 are in a continuous abutting state. The negative pressure trigger induction module can receive the trigger data of the trigger ring 62 and continuously transmit data to the feeding data monitoring and processing module. The feeding data monitoring and processing module judges according to the acquired data that the negative pressure state in the sealed feeding hopper 3 is normal at this time, that is, the sealed feeding hopper 3 is well sealed and there is not much air carried during feeding. The feeding data monitoring and processing module maintains the continuous data monitoring function and does not produce an auxiliary regulation function. It will transmit the data on the negative pressure state monitoring of the sealed feeding hopper 3 to the control system through the feeding state feedback module and the extended data interface, facilitating the control system to display the data, so that the production personnel or technical personnel can adjust the production parameters of the device body 1 according to the displayed data, effectively playing the role of data display and data reference. And due to the continuous contraction of the elastic imaging sleeve 42 driving the induction floating plate 43 to move up and down on the floating guide rod 44 at this time, the production personnel can judge the negative pressure state of the sealed feeding hopper 3 according to the position of the induction floating plate 43, promoting the imaging and interaction effects.

[0035] However, when there is gas volume storage caused by continuous feeding, abnormal gas volume in the feeding belt, or abnormal sealing of the sealed feeding hopper 3, the negative pressure state in the sealed feeding hopper 3 gradually loses, causing the elastic imaging sleeve 42 and the trigger spring 63 to produce elastic recovery and elongation under their own elastic actions. The elastic imaging sleeve 42 drives the induction floating plate 43 to move upward under the guidance of the floating guide rod 44, driving the two trigger rings 62 to separate. Furthermore, the negative pressure trigger module transmits a signal of induction disconnection to the feeding data monitoring and processing module. The feeding data monitoring and processing module judges that it is in a negative pressure abnormal state according to the disconnection signal, and then controls the auxiliary exhaust regulation module to take effect, starting the exhaust pump and opening the one-way exhaust valve located on the auxiliary regulation pipe 5 to perform an auxiliary exhaust function on the air in the sealed feeding hopper 3, avoiding the continuous retention of air in the sealed feeding hopper 3 and also avoiding the generation of bubbles caused by the accompanied downward movement of air. After the sealed feeding hopper 3 performs the auxiliary exhaust regulation function through the auxiliary exhaust regulation module, with the exhaust action of the exhaust pump, the sealed feeding hopper 3 resumes the negative pressure state again, causing the elastic imaging sleeve 42 and the trigger spring 63 to contract, and the two trigger rings 62 are triggered again. The feeding data monitoring and processing module receives the trigger data transmitted by the negative pressure trigger induction module again. The feeding data monitoring and processing module judges that the auxiliary exhaust regulation is effective, and judges the abnormal cause according to whether the negative pressure trigger induction module regularly transmits disconnection induction data subsequently and the operation state data of the automatic feeding system 2 transmitted by the feeding parameter acquisition module. When the automatic feeding system 2 is in a continuous operation state and the negative pressure trigger induction module subsequently transmits disconnection induction data regularly, it is determined that the abnormal cause at this time may be the air volume storage during the negative pressure transmission of the automatic feeding system 2 or the abnormal sealing of the sealed feeding hopper 3. The feeding data monitoring and processing module transmits the cause data to the control system through the feeding state feedback module. The control system displays the cause data, enabling production personnel or technical personnel to maintain and repair the automatic feeding system 2 and the sealed feeding hopper 3 when the subsequent device body 1 production is completed. At the same time, the feeding data monitoring and processing module dynamically adjusts the applicability of the auxiliary exhaust control module according to the data feedback of the negative pressure trigger induction module, thereby ensuring the quality stability and operation continuity during the production process of the device body 1; When the automatic feeding system 2 is in an intermittent operation state and the negative pressure trigger induction module transmits disconnection induction data every time the automatic feeding system 2 operates, it is determined that the abnormal cause at this time is the abnormal negative pressure transmission of the automatic feeding system 2, feeding with a large amount of air. The feeding data monitoring and processing module transmits the cause data to the control system through the feeding state feedback module. The control system displays it according to the cause data and adjusts the operation data of the automatic feeding system 2 to avoid the problem of continuous feeding with a large amount of air in the future. Moreover, the feeding data monitoring and processing module can also verify the control effect of the control system on the automatic feeding system 2 according to the subsequent data transmission of the negative pressure trigger induction module. When the verification is still abnormal, an abnormal alarm is transmitted to the control system through the auxiliary control abnormal module. The control system displays the abnormal alarm, prompting production personnel or technical personnel to handle the abnormality; When the feeding data monitoring and processing module performs the auxiliary exhaust control function through the auxiliary exhaust control module, the negative pressure trigger induction module maintains continuous disconnection induction without generating a data feedback of recovery trigger, or the elastic imaging sleeve 42 and the trigger spring 63 generate continuous elongation deformation. The elastic imaging sleeve 42 drives the induction floating plate 43 to continuously move upward and abuts against the limit block at the upper end of the floating guide rod 44, causing the limit contact block to transmit a trigger signal to the limit abnormal trigger module. After receiving the signal of extreme abnormality, the feeding data monitoring and processing module directly transmits an abnormal alarm to the control system through the auxiliary control abnormal module, enabling the control system, processing personnel, and technical personnel to respond to the abnormal alarm, adjust and judge the cause of the alarm, and eliminate the abnormality in a timely manner to avoid economic losses caused by continuous abnormality.

[0036] The third implementation method: Figure 1 - Figure 9Show a wire drawing device for plastic particle processing with an automatic feeding structure. The right end of the feeding pipe 32 is fixedly connected to a conveying pipe 33 communicated with it, and the right end of the conveying pipe 33 is in a connected fit with the automatic feeding system 2. A feeding control valve is fixedly installed on the feeding pipe 32, and an infrared induction probe is fixedly installed on the inner wall of the upper part of the sealed feeding hopper 3; The input end of the feeding data monitoring and processing module is also connected to a hopper surplus acquisition module. The input end of the hopper surplus acquisition module is signal-connected to the infrared induction probe. The output end of the feeding data monitoring and processing module is connected to a collaborative feeding control module. The output end of the collaborative feeding control module is signal-connected to the feeding control valve. The cooperation of the hopper surplus acquisition module and the collaborative feeding control module can effectively regulate the continuous feeding process of the automatic feeding system 2 through the conveying pipe 33 during the intelligent processing of auxiliary exhaust regulation, avoid the abnormality of air-assisted discharge caused by continuous feeding, effectively ensure the effect and efficiency of auxiliary exhaust regulation, ensure the effectiveness of the continuous feeding function of the subsequent sealed feeding hopper 3, and thus ensure the continuity and stability of the production of the device body 1. Moreover, according to the regulation function of the collaborative feeding control module, it is convenient for production personnel or technicians to judge the abnormal cause through abnormal data in case of subsequent extreme abnormalities, promoting the effectiveness of subsequent maintenance regulation.

[0037] Figure 1 - Figure 9 Show that the lower end of the sealed feeding hopper 3 is fixedly connected to a feeding pipe 31 communicated with it, and the lower end of the feeding pipe 31 extends into the device body 1. A feeding control valve is fixedly installed on the feeding pipe 31. The output end of the feeding data monitoring and processing module is also connected to a collaborative feeding control module. The output end of the collaborative feeding control module is signal-connected to the feeding control valve. The collaborative action of the collaborative feeding control module, the hopper surplus acquisition module and the collaborative feeding control module can further realize the intelligent cooperation of the feeding and charging states of the sealed feeding hopper 3 during the intelligent processing of auxiliary exhaust regulation. While ensuring the continuity and stability of the production of the device body 1, it can also, when the feeding of the automatic feeding system 2 is abnormal, through the collaborative action, realize the intermittent feeding and regulation function of the sealed feeding hopper 3, so as to ensure the completion of a single batch production of the device body 1 in an abnormal state and avoid the economic loss caused by temporary shutdown for inspection.

[0038] Figure 1 - Figure 9 Show that when the feeding data monitoring and processing module receives the disconnection induction data transmitted by the negative pressure trigger induction module, the feeding data monitoring and processing module, through the hopper surplus acquisition module, judges the surplus data of plastic particles in the sealed feeding hopper 3 according to the surplus of plastic particles in the sealed feeding hopper 3 collected by the infrared induction probe and the data of the flow rate of the feeding pipe 31 and the extrusion speed of the extrusion system transmitted by the feeding parameter acquisition module; When it is determined that the plastic particle surplus in the sealed feeding hopper 3 is sufficient, the sealed feeding hopper 3 acts on the feeding control valve on the conveying pipe 33 through the auxiliary feeding control module to close its feeding function, and transmits the data of closing the automatic feeding system 2 to the control system through the feeding state feedback module, promoting the action efficiency of auxiliary exhaust, reducing the retention of air in the sealed feeding hopper 3, avoiding the accompanying downward movement of air, then maintaining the continuous opening of the feeding control valve on the feeding pipe 31 to ensure the continuity of the operation of the device body 1, and then acting on the exhaust pump and the one-way exhaust valve on the auxiliary control pipe 5 through the auxiliary exhaust control module to perform the control action of exhausting and restoring the negative pressure state in the sealed feeding hopper 3. After the control is effective and the negative pressure state in the sealed feeding hopper 3 is restored, the contraction of the elastic imaging sleeve 42 and the trigger spring 63 will cause the triggering of the trigger ring 62, and the negative pressure trigger induction module transmits the trigger data to the feeding data monitoring and processing module, and the feeding data monitoring and processing module judges the effectiveness of the auxiliary control; Then the feeding data monitoring and processing module restores the opening of the feeding control valve through the collaborative feeding control module, transmits the data of restoring the operation of the automatic feeding system 2 to the control system through the feeding state feedback module, and the feeding data monitoring and processing module judges the abnormal cause according to whether the negative pressure trigger induction module will immediately generate the data of disconnection induction when the automatic feeding system 2 re-feeds. When the negative pressure trigger induction module continuously transmits the trigger signal, it indicates that the abnormal cause is the initial abnormal sealing of the sealed feeding hopper 3 or the accumulation of the air volume carried by the automatic feeding system 2 during feeding, and transmits the data about the abnormal cause to the control system through the feeding state feedback module; when the negative pressure trigger induction module immediately transmits the disconnection signal, it indicates that the abnormal cause is the abnormal negative pressure transmitted by the automatic feeding system 2, carrying a large amount of air for feeding, and transmits the abnormal alarm data through the auxiliary control abnormal module; When it is determined that the plastic particle surplus in the sealed feeding hopper 3 is insufficient, the sealed feeding hopper 3 maintains the opening of the feeding control valve and the feeding control valve, which can effectively ensure the production performance of the device body 1. At the same time, the sealed feeding hopper 3 acts through the auxiliary exhaust control module to assist in exhausting the air in the sealed feeding hopper 3, promoting the restoration of the negative pressure state in the sealed feeding hopper 3. When the continuous action of the auxiliary exhaust control is effective, after the negative pressure trigger induction module transmits the trigger data, the control action of the auxiliary exhaust control module is stopped. When the negative pressure trigger induction module immediately transmits the disconnection induction signal, it indicates that the abnormal cause is the abnormal negative pressure transmitted by the automatic feeding system 2, carrying a large amount of air for feeding, and transmits the abnormal alarm data through the auxiliary control abnormal module; when the negative pressure trigger induction module continuously transmits the trigger signal, it indicates that the abnormal cause is the initial abnormal sealing of the sealed feeding hopper 3 or the accumulation of the air volume carried by the automatic feeding system 2 during feeding, and transmits the data about the abnormal cause to the control system through the feeding state feedback module; When the auxiliary exhaust control module continuously functions, the negative pressure trigger induction module continuously transmits a disconnection induction signal, and the limit abnormal trigger module transmits the trigger signal of the limit trigger block, it indicates that the abnormality intensifies at this time. Therefore, the feeding data monitoring and processing module immediately acts on the collaborative feeding control module to close the feeding control valve, closes the feeding control valve on the feeding pipe 31 through the collaborative feeding control module, stops the feeding function to the extrusion system, avoids air entering the extrusion system, causing melt pressure fluctuations, and at the same time transmits an abnormal alarm to the control system through the auxiliary control abnormality module. The abnormal cause at this time may be the complete poor sealing of the sealed feeding hopper 3 and the abnormality of the negative pressure feeding of the automatic feeding system 2. The control system timely stops the feeding operation of the automatic feeding system 2 and transmits an alarm signal to the production personnel and technical personnel to prompt them to make timely and effective emergency responses.

[0039] Combined with the current actual requirements, the above implementation manner adopted in this application, the protection scope is not limited to this. Within the knowledge scope of those skilled in the art, various changes made without departing from the concept of this application still fall within the protection scope of the present invention.

Claims

1. A wire drawing device for plastic granule processing with an automatic feeding structure, characterized in that: It includes a device body (1) and a feeding auxiliary monitoring unit mounted in a control box and signal-connected to a control system. An automatic feeding system (2) is provided on the right side of the device body (1), and a sealed feeding hopper (3) cooperating with the automatic feeding system (2) is provided on the upper side of the device body (1). The upper end of the sealed feeding hopper (3) is fixedly connected to a feeding pipe (32) communicating with it. A feeding state sensing assembly (4) is provided on the upper side of the feeding pipe (32). A state triggering assembly (6) is arranged inside the feeding state sensing assembly (4). An auxiliary regulating pipe (5) communicating with it is installed at the upper end of the feeding state sensing assembly (4). The feeding auxiliary monitoring unit includes a feeding data monitoring and processing module. The input end of the feeding data monitoring and processing module is connected to a feeding parameter acquisition module and a negative pressure triggering induction module. The output end of the feeding data monitoring and processing module is connected to a feeding state feedback module and an auxiliary exhaust regulating module. The input end of the feeding parameter acquisition module is signal-connected to the control system. The input end of the negative pressure triggering induction module is signal-connected to the state triggering assembly (6). The output end of the feeding state feedback module is signal-connected to the control system. The output end of the auxiliary exhaust regulating module is signal-connected to the auxiliary regulating pipe (5).

2. The wire drawing device for plastic particle processing with an automatic feeding structure according to claim 1, characterized in that: The feeding state sensing assembly (4) includes an induction hopper (41) fixedly installed at the upper end of the feeding pipe (32) and communicating with the feeding pipe (32). The upper end of the induction hopper (41) is fixedly connected to an elastic imaging sleeve (42) communicating with it. The upper end of the elastic imaging sleeve (42) is fixedly connected to an induction floating plate (43). A plurality of floating guide rods (44) are fixedly connected to the outer end of the induction hopper (41). The upper ends of the floating guide rods (44) penetrate through the induction floating plate (43) and are in sliding fit with the induction floating plate (43).

3. The wire drawing device for plastic particle processing with an automatic feeding structure according to claim 2, wherein: A limit block is fixedly connected to the upper end of the floating guide rod (44). An extreme touch block is fixedly connected to the lower end of the limit block. An abutting block cooperating with the extreme touch block is fixedly connected to the upper end of the induction floating plate (43). The input end of the feeding data monitoring and processing module is also connected to an extreme abnormal triggering module. The input end of the extreme abnormal triggering module is signal-connected to the extreme touch block.

4. A wire drawing device for plastic particle processing with an automatic feeding structure according to claim 2, characterized in that: A sealed connecting block (51) is fixedly connected to the upper end of the induction floating plate (43). The auxiliary regulating pipe (5) is embedded in the sealed connecting block (51), and the lower end of the auxiliary regulating pipe (5) communicates with the elastic imaging sleeve (42). The upper end of the auxiliary regulating pipe (5) extends outside the sealed connecting block (51) and is fixedly connected to an exhaust pump. A one-way exhaust valve is fixedly installed on the outer end of the auxiliary regulating pipe (5). The output end of the auxiliary exhaust regulating module is respectively signal-connected to the exhaust pump and the one-way exhaust valve.

5. A wire drawing device for plastic particle processing with an automatic feeding structure according to claim 2, characterized in that: The state trigger component (6) includes a trigger gasket (61) and a trigger ring (62). Trigger gaskets (61) are fixedly connected to both the upper and lower ends of the inner wall of the elastic imaging sleeve (42). Trigger rings (62) are fixedly connected to the ends of the two trigger gaskets (61) that are close to each other. The input end of the negative pressure trigger induction module is signal-connected to the trigger ring (62).

6. The wire drawing device for plastic particle processing with an automatic feeding structure according to claim 5, characterized in that: A trigger spring (63) that is slidably sleeved on the outside of the trigger ring (62) is also fixedly connected between the two trigger gaskets (61). When there is no external force, both the elastic imaging sleeve (42) and the trigger spring (63) are in an elongated deformation state. When in the vacuum feeding state in the sealed feeding hopper (3), both the elastic imaging sleeve (42) and the trigger spring (63) are in a contracted state.

7. The wire drawing device for processing plastic particles with an automatic feeding structure according to claim 1, characterized in that: The right end of the feeding pipe (32) is fixedly connected to a conveying pipe (33) that is connected to it, and the right end of the conveying pipe (33) is in a connected fit with the automatic feeding system (2). A feeding control valve is fixedly installed on the feeding pipe (32), and an infrared induction probe is fixedly installed on the upper inner wall of the sealed feeding hopper (3). The input end of the feeding data monitoring and processing module is also connected to a hopper remaining amount acquisition module. The input end of the hopper remaining amount acquisition module is signal-connected to the infrared induction probe. The output end of the feeding data monitoring and processing module is connected to a collaborative feeding control module, and the output end of the collaborative feeding control module is signal-connected to the feeding control valve.

8. A wire drawing device for plastic granule processing with an automatic feeding structure according to claim 1, characterized in that: The lower end of the sealed feeding hopper (3) is fixedly connected to a feeding pipe (31) that is connected to it, and the lower end of the feeding pipe (31) extends into the device body (1). A feeding control valve is fixedly installed on the feeding pipe (31). The output end of the feeding data monitoring and processing module is also connected to a collaborative feeding control module, and the output end of the collaborative feeding control module is signal-connected to the feeding control valve.

9. The wire drawing device for plastic particle processing with an automatic feeding structure according to claim 1, characterized in that: The output end of the feeding data monitoring and processing module is also connected to an auxiliary control abnormality module, and the output end of the auxiliary control abnormality module is signal-connected to the control system.

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