A wire drawing device for plastic particle processing with automatic feeding structure

Abstract

The present invention relates to a wire drawing device for processing plastic particles with an automatic feeding structure applied in the field of plastic processing. The device comprises a device body and a feeding auxiliary monitoring unit mounted in a control box and connected to the control system signal. Through the coordinated cooperation of the feeding auxiliary monitoring unit with the component auxiliary control tube and the state triggering component, on the one hand, by real-time monitoring of the negative pressure state changes in the sealed feeding hopper of the component, a corresponding deformation response mechanism is triggered, thereby accurately sensing the gas content state of the plastic particles; on the other hand, when an abnormal negative pressure feedback signal is detected, an 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 accompanying downward feeding phenomenon, thereby constructing a dynamic protective barrier for the feeding process, improving the economy and reliability of plastic filament processing, and the quality stability and production continuity of the subsequent wire drawing process.

Description

Technical Field

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

[0002] The wire drawing device for processing plastic pellets melts, extrudes, and draws plastic pellets into filaments. It is widely used in the production of textile fibers, ropes, strapping tape, plastic mesh, and other products. The device primarily consists of a feeding system, an extrusion system, a wire drawing assembly, a cooling system, a drawing and drawing device, a winding system, and a control system. The operating process is as follows: the feeding system feeds plastic pellets into the extrusion system, where they are melted and plasticized before entering the wire drawing assembly to form filaments. The cooling system shapes the nascent filaments, which are then oriented and stretched by the drawing and drawing device. Finally, the winding system collects the finished product. The control system automatically adjusts key parameters such as feeding speed, melt temperature, extrusion rate, drawing parameters, and cooling conditions to ensure controllability and stability throughout the entire process.

[0003] In practical applications, existing plastic wire drawing devices have significant technical limitations. First, the equipment has strict requirements on the performance of raw materials, making it difficult to effectively process recycled plastics, resulting in limited applicability of the device, increased production costs, and low utilization of renewable resources; second, 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 rough surfaces of the filaments, diameter fluctuations, and even broken filaments. In addition, the melt pressure fluctuations caused by bubbles will interfere with the stability of the mold filament discharge, further reducing processing quality and production efficiency, and weakening the economic benefits of the device.

[0004] To address the issue of raw material compatibility, Chinese invention patent application CN115990992A discloses a plastic wire drawing machine that utilizes multi-layer co-extrusion technology. By configuring a multi-screw extrusion mechanism and a distributor, an adjustable layered material flow path is constructed. The thickness of each layer is precisely controlled by a shutoff rod and a swing-blade adjustment block. The core technology lies in: a multi-layered material flow path within the distributor, an angle adjustment mechanism to control the shutoff rod angle, and a swing-blade adjustment block to adjust the material distribution in adjacent flow paths. Finally, the left and right distributor rods combine the multiple layers of material. This machine focuses on solving the problem of composite co-extrusion of recycled and virgin plastics, broadening the applicable raw material range through a layered design and 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.

[0009] 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;

[0010] 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;

[0011] 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.

[0012] In the above-mentioned wire drawing device for processing plastic particles with an automatic feeding structure, on the one hand, by real-time monitoring of the changes in the negative pressure state in the sealed feeding hopper of the component, the corresponding deformation response mechanism is triggered, thereby accurately sensing 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 of the component can be immediately started to build a dynamic protective barrier for the feeding process.

[0013] As a supplement to this application, the feeding status sensing component includes a sensing bucket fixedly mounted on the upper end of the feeding tube and connected to the feeding tube, the upper end of the sensing bucket is fixedly connected to an elastic display sleeve connected thereto, the upper end of the elastic display sleeve is fixedly connected to a sensing float plate, the outer end of the sensing bucket is fixedly connected to a plurality of floating guide rods, the upper ends of the floating guide rods pass through the sensing float plate and are in sliding engagement with the sensing float plate.

[0014] As a supplement to this application, a sealing connecting block is fixedly connected to the upper end of the sensing float, an auxiliary control tube is embedded in the sealing connecting block, and the lower end of the auxiliary control tube is connected to the elastic imaging sleeve. The upper end of the auxiliary control tube extends to the outside of the sealing connecting block and is fixedly connected to an exhaust pump. A one-way exhaust valve is fixedly installed on the outer end of the auxiliary control tube, and the output end of the auxiliary exhaust control module is respectively connected to the exhaust pump and the one-way exhaust valve signals.

[0015] As a supplement to this application, the status trigger component includes a trigger gasket and a trigger ring. The upper and lower ends of the inner wall of the elastic display sleeve are fixedly connected to the trigger gaskets. The two trigger gaskets are fixedly connected to the trigger ring at one end. The input end of the negative pressure trigger sensing module is connected to the trigger ring signal.

[0016] As a supplement to this application, the output end of the feeding data monitoring and processing module is also connected to the auxiliary control abnormality module, and the output end of the auxiliary control abnormality module is connected to the control system signal.

[0017] As a further improvement of the present application, the upper end of the floating guide rod is fixedly connected to the limit block, the lower end of the limit block is fixedly connected to the limit contact block, the upper end of the induction float plate is fixedly connected to the abutment block that cooperates with the limit contact block, and the input end of the feeding data monitoring and processing module is also connected to the limit abnormality trigger module, and the input end of the limit abnormality trigger module is connected to the limit contact signal.

[0018] As a further improvement of the present application, a trigger spring is fixedly connected between the two trigger gaskets and is slidably mounted on the outside of the trigger ring. When there is no external force, the elastic developing sleeve and the trigger spring are both elongated and deformed. When the sealed loading hopper is in a vacuum loading state, the elastic developing sleeve and the trigger spring are both in a contracted state.

[0019] As a further improvement of the present application, the right end of the feeding pipe is fixedly connected to a conveying pipe connected thereto, and the right end of the conveying pipe is connected to the automatic feeding system. A feeding control valve is fixedly installed on the feeding pipe, and an infrared sensing probe is fixedly installed on the inner wall of the sealed feeding hopper;

[0020] The input end of the feeding data monitoring and processing module is also connected to the hopper balance collection module, the input end of the hopper balance collection module is connected to the infrared sensing probe signal, the output end of the feeding data monitoring and processing module is connected to the collaborative feeding control module, and the output end of the collaborative feeding control module is connected to the feeding control valve signal.

[0021] As another improvement of the present application, the lower end of the sealed upper hopper is fixedly connected to a feed pipe connected thereto, and the lower end of the feed pipe extends into the device body, and a feed control valve is fixedly installed on the feed pipe. The output end of the feeding data monitoring and processing module is also connected to a collaborative feed control module, and the output end of the collaborative feed control module is connected to the feed control valve signal.

[0022] In summary, through the coordinated cooperation of the feeding auxiliary monitoring unit, the component auxiliary control tube 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 of the changes in the negative pressure state in the sealed feeding hopper of the component, the corresponding deformation response mechanism is triggered, thereby accurately sensing the air content state of the plastic particles; on the other hand, when the negative pressure abnormality feedback signal is detected, the auxiliary exhaust control program in the sealed feeding hopper of the component can be immediately started, which effectively reduces the residence time of the air in the sealed feeding hopper and suppresses the accompanying downward feeding phenomenon, thereby building a dynamic protective barrier for the feeding process, which can not only significantly reduce the bubble generation rate in the melting link, but also improve the economy and reliability of plastic filament processing, thereby ensuring the quality stability and production continuity of the subsequent drawing process of the device body. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a topological diagram of the device body and the auxiliary feeding monitoring unit in the first to third embodiments of this application;

[0024] Figure 2 This is a control logic diagram of the auxiliary feeding monitoring unit of the second and third embodiments of this application;

[0025] Figure 3Exploded diagram of the sealed loading hopper, loading status sensing component, and status triggering component in the second and third embodiments of the present application;

[0026] Figure 4 This is an axonometric diagram of the second and third embodiments of the present application when the loading state is abnormal and needs to be adjusted;

[0027] Figure 5 This is an axonometric diagram of the second and third implementation modes of the present application when the abnormal feeding state control is invalid;

[0028] Figure 6 This is an axonometric cross-sectional view of the sealed loading hopper, loading status sensing component, and status triggering component during normal loading in the second and third embodiments of the present application;

[0029] Figure 7 This is an axonometric cross-sectional view of the sealing feeding hopper, feeding status sensing component and status triggering component when the feeding status is abnormally controlled and feeding is stopped in the second and third embodiments of the present application;

[0030] Figure 8 This is an axonometric cross-sectional view of the sealing hopper, the feeding state sensing component, and the state triggering component in the second and third embodiments of the present application during abnormal feeding state control and normal feeding;

[0031] Figure 9 This is an axonometric cross-sectional view of the sealed feeding hopper, feeding status sensing component and status triggering component when the abnormal feeding status control is invalid in the second and third implementation modes of the present application.

[0032] Description of the numbers in the figure:

[0033] 1. Device body, 2. Automatic feeding system, 3. Sealed feeding hopper, 31. Feeding pipe, 32. Feeding pipe, 33. Conveying pipe, 4. Feeding status sensing component, 41. Sensing hopper, 42. Elastic developing sleeve, 43. Sensing floating plate, 44. Floating guide rod, 5. Auxiliary regulating pipe, 51. Sealed connecting block, 6. Status triggering component, 61. Triggering gasket, 62. Triggering ring, 63. Triggering spring. DETAILED DESCRIPTION

[0034] The following describes three implementation methods of the present application in detail with reference to the accompanying drawings.

[0035] The first implementation method:

[0036] Figure 1A wire drawing device for processing plastic particles with an automatic feeding structure is shown, which includes a device body 1 and a control system mounted in its control box. 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 automatic feeding system 2 is a pneumatic vacuum feeding machine equipped with an electric heating wire dryer, which can transport the mixed plastic particles to the sealed feeding hopper 3 through negative pressure adsorption. The lower end of the sealed feeding hopper 3 is fixedly connected to a feeding pipe 31 connected to it, and the lower end of the feeding pipe 31 extends into the device body 1. The plastic particles enter the extrusion system of the device body 1 through the sealed feeding hopper 3 and the feeding pipe 31 to be melted.

[0037] An extrusion system is provided at the lower end of the sealed upper hopper 3, and the extrusion system is coordinated with the feed pipe 31. A wire drawing forming component coordinated with it is provided on the left side of the extrusion system, and a cooling system coordinated 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.

[0038] It should be noted that the automatic feeding system 2, extrusion system, wire drawing forming assembly, cooling system, traction and stretching device, winding system and control system are all directly quoted from the structure and system of the device body 1 in the prior art. No structural and principle changes have been made here, and no further details will be given. The technology in this field can be selected according to needs. Specifically, the extrusion system mainly includes a heating cylinder (barrel): wrapped around the outside of the screw, heating and melting the plastic particles through electric heating or thermal oil; the screw: divided into a conveying section (pushing particles), a compression section (compacting the melt) and a homogenizing section (uniform melt pressure and temperature); a filter / filter plate: removes impurities and ensures the purity of the melt (filter elements of different mesh sizes can be replaced). The wire drawing forming assembly mainly includes a die (spinneret): the melt passes through the micropores of the die (the pore size determines the diameter of the wire) to form a continuous filament; a die lip adjustment device: adjusts the width of the die gap to control the uniformity and dimensional accuracy of the wire. The cooling system mainly includes an air cooling device: a high-speed airflow (fan or air ring) is used to quickly cool the filaments, which is suitable for crystalline materials (such as PP, PE); or a water cooling tank: immersion cooling, which is used for non-crystalline or slow-crystallizing materials (such as PET). 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 groups of rollers clamp the filaments through friction or clamping to provide stable traction; a stretching mechanism: a speed-controlled roller or a differential roller group is used to directional stretch the filaments (such as a 3-7 times stretching ratio) to improve molecular orientation and strength. The winding system mainly includes a winding device: the stretched filaments are neatly wound into a roll, and a tension controller is equipped to prevent loosening or breakage; a wire cutter (optional): some equipment has an integrated cutting function to directly produce fixed-length filament bundles. The control system mainly includes a temperature control module: which monitors and adjusts the temperature of the heating cylinder, mold and cooling system in real time; a speed synchronization system: which coordinates the screw speed, pulling speed and winding speed to ensure consistent wire diameter; a human-machine interface (HMI): which can be programmed through a touch screen or PLC to realize parameter setting, fault alarm and data recording; and an expanded data interface: which is used to expand and connect other intelligent units to facilitate data interaction.

[0039] Second implementation method:

[0040] Figure 1 - Figure 9 The drawing device for processing plastic pellets with an automatic feeding structure is shown, comprising a device body 1 and a feeding auxiliary monitoring unit mounted in a control box and connected to the control system signal. An automatic feeding system 2 is provided on the right side of the device body 1, and a sealed feeding hopper 3 is provided on the upper side of the device body 1 to cooperate with the automatic feeding system 2.

[0041] The upper end of the sealed feeding hopper 3 is fixedly connected to a feeding pipe 32 connected thereto, a feeding state sensing component 4 is provided on the upper side of the feeding pipe 32, a state triggering component 6 is provided in the feeding state sensing component 4, and an auxiliary control pipe 5 connected thereto is installed on the upper end of the feeding state sensing component 4;

[0042] 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;

[0043] 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 6 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 5 signal. Through the coordinated cooperation of the feeding auxiliary monitoring unit, the auxiliary control pipe 5 of the component, and the state trigger component 6, 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 of the negative pressure state changes in the sealed feeding hopper 3 of the component, the corresponding deformation response mechanism is triggered, thereby accurately sensing the air content state of the plastic particles; on the other hand, when the negative pressure abnormality feedback signal is detected, the auxiliary exhaust control program in the sealed feeding hopper 3 of the component can be immediately started, effectively reducing the residence time of the air in the sealed feeding hopper 3 and suppressing the phenomenon of accompanying downward feeding, thereby building a dynamic protective barrier for the feeding process, thereby not only significantly reducing the bubble generation rate in the melting link, but also improving the economy and reliability of plastic filament processing, thereby ensuring the quality stability and production continuity of the subsequent wire drawing process of the device body 1.

[0044] Figure 3 - Figure 9 The feeding status sensing component 4 is shown to include a sensing bucket 41 fixedly mounted on the upper end of the feeding tube 32 and connected to the feeding tube 32. The upper end of the sensing bucket 41 is fixedly connected to an elastic developing sleeve 42 connected thereto. The upper end of the elastic developing sleeve 42 is fixedly connected to a sensing float 43. The outer end of the sensing bucket 41 is fixedly connected to a plurality of floating guide rods 44. The upper ends of the floating guide rods 44 pass through the sensing float 43 and are in sliding cooperation with the sensing float 43. The cooperation among the elastic developing sleeve 42, the sensing float 43 and the floating guide rods 44 can effectively realize the real-time monitoring of the negative pressure state in the sealed feeding hopper 3, and can also effectively produce the state display through the deformation of the elastic developing sleeve 42, so that the production personnel can observe the feeding status in time and take effective emergency protection measures.

[0045] Figure 2 - Figure 9It is shown that the upper end of the floating guide rod 44 is fixedly connected to the limit block, the lower end of the limit block is fixedly connected to the limit contact block, the upper end of the sensing float plate 43 is fixedly connected to the abutment block that cooperates with the limit contact block, and the input end of the feeding data monitoring and processing module is also connected to the limit abnormality trigger module, and the input end of the limit abnormality trigger module is connected to the limit contact signal. The setting of the limit abnormality trigger module, on the one hand, can further display the abnormal state in the sealed feeding hopper 3, so that the feeding data monitoring and processing module can judge the urgency of the negative pressure abnormality, effectively display the abnormal data to the production personnel or technical personnel, and promote the effectiveness of subsequent abnormal response measures. On the other hand, it can also verify and feedback the dynamic protection control measures, display the effectiveness of the auxiliary exhaust control function, promote the efficiency of abnormal data sensing, shorten the timeliness of abnormal feedback, thereby promoting the timeliness and effectiveness of subsequent emergency response, and reducing the economic losses caused by the continued abnormality.

[0046] Figure 3 - Figure 9 It is shown that the upper end of the induction float 43 is fixedly connected to a sealing block 51, an auxiliary control tube 5 is embedded in the sealing block 51, and the lower end of the auxiliary control tube 5 is connected to the elastic developing sleeve 42, the upper end of the auxiliary control tube 5 extends to the outside of the sealing block 51, and is fixedly connected to an exhaust pump, and a one-way exhaust valve is fixedly installed on the outer end of the auxiliary control tube 5, and the output end of the auxiliary exhaust control module is respectively connected to the exhaust pump and the one-way exhaust valve signal. The setting of the auxiliary exhaust control module, the exhaust pump and the one-way exhaust valve can timely perform auxiliary exhaust inside the sealed upper hopper 3 when a negative pressure abnormality occurs, so as to avoid the retention of air in the sealed upper hopper 3, and then effectively avoid the accompanying downward movement of the air, inhibit the generation of subsequent molten bubbles, and effectively ensure the quality stability and production continuity of the plastic filaments through the intelligent auxiliary control function in the early stage of the abnormality.

[0047] Figure 3 - Figure 9 The state trigger component 6 shown includes a trigger gasket 61 and a trigger ring 62. The upper and lower ends of the inner wall of the elastic display sleeve 42 are fixedly connected to the trigger gasket 61, and the two trigger gaskets 61 are fixedly connected to the trigger ring 62 at one end close to each other. The input end of the negative pressure trigger sensing module is signal-connected to the trigger ring 62. The cooperation of the negative pressure trigger sensing module and the trigger ring 62 can monitor and transmit data of the negative pressure state of the sealed feeding hopper 3, which is convenient for real-time monitoring of the feeding data, and can sense the data of air mixing at the early stage of the abnormality, promote the timeliness of auxiliary exhaust control, further ensure the production quality of the device body 1, avoid the generation of bubbles, promote the timely imaging of the amount of air mixing during feeding and poor feeding sealing, realize the timeliness of abnormal monitoring, avoid the data lag of the feedback state through the quality change of plastic filaments, reduce cost loss, and promote the economic benefits of the device body 1 for plastic particle processing.

[0048] Figure 3 - Figure 9 It is shown that a trigger spring 63 is fixedly connected between the two trigger gaskets 61 and is slidably mounted on the outside of the trigger ring 62. When there is no external force, the elastic developing sleeve 42 and the trigger spring 63 are both elongated and deformed. When the sealed loading hopper 3 is in a vacuum loading state, the elastic developing sleeve 42 and the trigger spring 63 are both in a contracted state. The elastic deformation of the elastic developing sleeve 42 and the trigger spring 63 cooperates with the balance of the negative pressure state in the sealed loading hopper 3 to achieve real-time monitoring of the state in the sealed loading hopper 3 and data feedback, effectively promoting the timeliness and effectiveness of the monitoring data and the timeliness of abnormal response.

[0049] Figure 2 It is shown that the output end of the feeding data monitoring and processing module is also connected to the auxiliary control abnormality module, and the output end of the auxiliary control abnormality module is connected to the control system signal. The setting of the auxiliary control abnormality module can transmit the abnormal alarm signal in time after the auxiliary exhaust control fails, prompting the control system to generate corresponding emergency response measures, and reminding production personnel or technical personnel to perform manual intervention in emergencies, thereby reducing economic losses caused by continuous abnormalities.

[0050] 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 collect the feeding parameters for processing plastic particles of the device body 1 set by the technicians in the control system. These parameters include but are not limited to the feeding speed, the negative pressure data of the automatic feeding system 2, the operation data of the automatic feeding system 2, the negative pressure standard in the sealed feeding hopper 3, the flow rate of the feed pipe 31 and the extrusion speed of the extrusion system and other related data, which are then converted and transmitted to the feeding data monitoring and processing module, so that the feeding data monitoring and processing module can regulate the subsequent auxiliary exhaust program according to the obtained parameter data.

[0051] During the normal feeding process, the one-way exhaust valve on the auxiliary control pipe 5 is in a normally closed state, the feed control valve on the feed pipe 31 is in a normally open state, and the feeding control valve on the conveying pipe 33 is set according to the feeding parameters and is suitable for the feeding state of the automatic feeding system 2 for synchronous opening and closing. When the automatic feeding system 2 is in the feeding state, the feeding control valve is opened, and when the automatic feeding system 2 is in the non-feeding state, the feeding control valve is closed.

[0052] When the negative pressure in the sealed loading hopper 3 is normal, the negative pressure will cause the elastic developing sleeve 42 to shrink and deform, and the elastic developing sleeve 42 and the trigger spring 63 are both in a contracted state. Moreover, due to the contraction of the elastic developing sleeve 42 and the trigger spring 63, the two trigger gaskets 61 are close to each other, and the two trigger rings 62 are in a continuous abutment state. The negative pressure trigger sensing 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 determines based on the acquired data that the negative pressure in the sealed loading hopper 3 is normal at this time, that is, the sealed loading hopper 3 is well sealed, and the feeding does not carry much air, and the feeding The data monitoring and processing module maintains a continuous data monitoring function and does not produce an auxiliary control function. It will transmit data on the negative pressure status monitoring of the sealed loading hopper 3 to the control system through the loading status feedback module and the extended data interface, so that the control system can display data, so that production personnel or technical personnel can use the displayed data to adjust the production parameters of the device body 1, effectively playing the role of data display and data reference. Moreover, since the continuous contraction of the elastic display sleeve 42 at this time drives the induction float 43 to move up and down on the floating guide rod 44, the production personnel can judge the negative pressure state of the sealed loading hopper 3 at this time according to the position of the induction float 43, thereby promoting imaging and interaction.

[0053] However, when the gas volume is stored due to continuous feeding, the gas volume in the feeding belt is abnormal, or the sealing of the sealed feeding hopper 3 is abnormal, the negative pressure state in the sealed feeding hopper 3 is gradually lost, causing the elastic developing sleeve 42 and the trigger spring 63 to produce an elastic recovery and extension effect under their own elastic action. The elastic developing sleeve 42 drives the sensing float 43 to move upward under the guidance of the floating guide rod 44, driving the two trigger rings 62 to produce a separation effect, and then the negative pressure trigger module transmits a sensing disconnection signal to the feeding data monitoring and processing module. The feeding data monitoring and processing module determines that it is in a negative pressure abnormality state according to the disconnection signal, and then controls the auxiliary exhaust control module to start the exhaust pump and open the one-way exhaust valve on the auxiliary control pipe 5 to perform auxiliary exhaust on the air in the sealed feeding hopper 3, so as to avoid the continuous retention of air in the sealed feeding hopper 3 and the accompanying downward movement of air to cause the generation of bubbles;

[0054] After the sealed loading hopper 3 performs auxiliary exhaust control by the auxiliary exhaust control module, the sealed loading hopper 3 restores the negative pressure state under the exhaust action of the exhaust pump, and the elastic developing sleeve 42 and the trigger spring 63 are contracted, the two trigger rings 62 are re-triggered, and the loading data monitoring and processing module receives the trigger data transmitted by the negative pressure trigger sensing module again. The loading data monitoring and processing module determines that the auxiliary exhaust control is effective, and determines the cause of the abnormality based on whether the subsequent negative pressure trigger sensing module regularly transmits disconnection sensing data, as well as the operating status data of the automatic loading system 2 transmitted by the loading parameter acquisition module;

[0055] When the automatic feeding system 2 is in a state of continuous operation, and the negative pressure triggering sensing module subsequently regularly transmits disconnection sensing data, it is judged that the abnormal inducement at this time may be the abnormality of the gas storage during the negative pressure delivery of the automatic feeding system 2 or the sealing of the sealed feeding hopper 3. The feeding data monitoring and processing module transmits the inducement data to the control system through the feeding state feedback module. The control system displays the inducement data, so that the production personnel or technicians can maintain and repair the automatic feeding system 2 and the sealed feeding hopper 3 when the production of the subsequent device body 1 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 from the negative pressure triggering sensing module, so as to ensure the quality stability and operation continuity during the production process of the device body 1;

[0056] When the automatic feeding system 2 is in an intermittent operation state, and each time the automatic feeding system 2 is running, it causes the negative pressure triggering sensing module to transmit disconnected sensing data, it is judged that the abnormal inducement at this time is the abnormality of the automatic feeding system 2 transmitting negative pressure, carrying a large amount of air to feed, and the feeding data monitoring and processing module transmits the inducement data to the control system through the feeding state feedback module. The control system displays it according to the inducement data and regulates the operation data of the automatic feeding system 2 to avoid the problem of subsequent feeding continuing to carry a large amount of air. The feeding data monitoring and processing module can also verify the control system's regulation of the automatic feeding system 2 according to the subsequent data transmission of the negative pressure triggering sensing module. If the verification is still abnormal, the auxiliary regulation abnormality module transmits an abnormal alarm to the control system, and the control system displays the abnormal alarm to prompt production personnel or technical personnel to deal with the abnormality.

[0057] When the feeding data monitoring and processing module performs auxiliary exhaust control through the auxiliary exhaust control module, the negative pressure trigger sensing module maintains continuous disconnection sensing and does not generate recovery trigger data feedback, or the elastic imaging sleeve 42 and the trigger spring 63 produce continuous elongation deformation, and the elastic imaging sleeve 42 drives the sensing float 43 to move continuously 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 abnormality trigger module. After the feeding data monitoring and processing module receives the limit abnormality signal, it directly transmits the abnormal alarm to the control system through the auxiliary control abnormality module, so that the control system, processing personnel and technical personnel can respond to the abnormal alarm, control and judge the alarm cause, eliminate the abnormality in time, and avoid economic losses caused by continuous abnormality.

[0058] The third implementation method:

[0059] Figure 1 - Figure 9The figure shows a wire drawing device for processing plastic particles with an automatic feeding structure. The right end of the feeding pipe 32 is fixedly connected to the conveying pipe 33 connected thereto, and the right end of the conveying pipe 33 is connected to the automatic feeding system 2. A feeding control valve is fixedly installed on the feeding pipe 32, and an infrared sensor probe is fixedly installed on the inner wall of the sealed feeding hopper 3.

[0060] The input end of the feeding data monitoring and processing module is also connected to the hopper balance acquisition module, the input end of the hopper balance acquisition module is connected to the infrared sensing probe signal, the output end of the feeding data monitoring and processing module is connected to the collaborative feeding control module, the output end of the collaborative feeding control module is connected to the feeding control valve signal, the cooperation of the hopper balance 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 control, avoid the abnormality of air-assisted exhaust caused by continuous feeding, effectively ensure the effect and efficiency of auxiliary exhaust control, ensure the effectiveness of the subsequent continuous feeding effect of the sealed feeding hopper 3, and thus ensure the continuity and stability of the production of the device body 1, and can also be based on the control effect of the collaborative feeding control module, so that when subsequent extreme abnormalities occur, production personnel or technical personnel can judge the abnormal cause through abnormal data to promote the effectiveness of subsequent maintenance control.

[0061] Figure 1 - Figure 9 It is shown that the lower end of the sealed loading hopper 3 is fixedly connected to a feed pipe 31 connected thereto, and the lower end of the feed pipe 31 extends into the device body 1, and a feed control valve is fixedly installed on the feed pipe 31, and 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 connected to the feed control valve signal. The collaborative effect of the collaborative feeding control module, the hopper remainder acquisition module and the collaborative loading control module can further realize the intelligent collaborative effect of the loading and feeding status of the sealed loading hopper 3 in the intelligent processing process of auxiliary exhaust control, while ensuring the production continuity and stability of the device body 1, and can also realize intermittent loading and control of the sealed loading hopper 3 through collaborative effect when the automatic loading system 2 is feeding abnormally, so as to ensure the completion of a single batch production of the device body 1 under abnormal conditions, and avoid the economic losses caused by temporary shutdown for inspection.

[0062] Figure 1 - Figure 9 It shows that when the feeding data monitoring and processing module receives the disconnection sensing data transmitted by the negative pressure trigger sensing module, the feeding data monitoring and processing module determines the remaining amount of plastic particles in the sealed feeding hopper 3 at this time based on the data on the remaining amount of plastic particles in the sealed feeding hopper 3 collected by the infrared sensing probe and the data on the flow rate of the feeding pipe 31 and the extrusion speed of the extrusion system transmitted by the feeding parameter acquisition module;

[0063] When it is determined that there is sufficient residual amount of plastic particles in the sealed loading hopper 3, the sealed loading hopper 3 acts on the loading control valve on the conveying pipe 33 through the auxiliary loading control module to close its loading function, and transmits the data of closing the loading of the automatic loading system 2 to the control system through the loading state feedback module, thereby promoting the efficiency of the auxiliary exhaust, reducing the retention of air in the sealed loading hopper 3, and avoiding the accompanying downward movement of the air. Then, the continuous opening of the feeding control valve on the feeding pipe 31 is maintained to ensure the continuity of the operation of the device body 1, and then the auxiliary exhaust control module acts on the exhaust pump and the one-way exhaust valve on the auxiliary control pipe 5 to regulate the exhaust in the sealed loading hopper 3 to restore the negative pressure state. When the regulation is effective and the negative pressure state in the sealed loading hopper 3 is restored, the contraction of the elastic developing sleeve 42 and the trigger spring 63 will cause the trigger ring 62 to be triggered, and the negative pressure trigger sensing module transmits the trigger data to the feeding data monitoring and processing module, and the feeding data monitoring and processing module determines the effectiveness of the auxiliary regulation;

[0064] Then the feeding data monitoring and processing module restores the feeding control valve to open through the collaborative feeding control module, and transmits the data of restoring the operation of the automatic feeding system 2 to the control system through the feeding state feedback module. The feeding data monitoring and processing module determines the abnormal cause according to whether the negative pressure triggering sensing module will immediately generate disconnection sensing data when the automatic feeding system 2 re-loads. When the negative pressure triggering sensing module continues to transmit the trigger signal, it indicates that the abnormal cause is the initial abnormality of the sealing of the sealing feeding hopper 3 or the accumulation of the air volume carried by the feeding of the automatic feeding system 2, and the data on the abnormal cause is transmitted to the control system through the feeding state feedback module; when the negative pressure triggering sensing module immediately transmits the disconnection signal, it indicates that the abnormal cause is the abnormality of the automatic feeding system 2 transmitting the negative pressure, carrying a large amount of air for feeding, and transmits the abnormal alarm data through the auxiliary control abnormality module;

[0065] When it is judged that there is insufficient residual plastic particles in the sealed loading hopper 3, the sealed loading hopper 3 maintains the opening of the loading control valve and the feed control valve, which can effectively ensure the production safety of the device body 1. At the same time, the sealed loading hopper 3 assists in exhausting the air in the sealed loading hopper 3 through the auxiliary exhaust control module, and promotes the recovery of the negative pressure state in the sealed loading hopper 3. When the auxiliary exhaust control continues to be effective, the negative pressure triggering sensing module stops the control function of the auxiliary exhaust control module after transmitting the trigger data. When the negative pressure triggering sensing module immediately transmits the disconnection sensing signal, it indicates that the abnormal inducement is the abnormality of the automatic feeding system 2 transmitting the negative pressure, carrying a large amount of air to feed, and transmitting the abnormal alarm data through the auxiliary control abnormality module; when the negative pressure triggering sensing module continues to transmit the trigger signal, it indicates that the abnormal inducement is the initial abnormality of the sealing of the sealed loading hopper 3 or the accumulation of the air carried by the feeding of the automatic feeding system 2, and the data on the abnormal inducement is transmitted to the control system through the feeding state feedback module;

[0066] When the auxiliary exhaust control module continues to work, the negative pressure trigger sensing module continues to transmit the disconnection sensing signal, and the limit abnormality trigger module transmits the trigger signal of the limit contact block, it means that the abnormality is aggravated at this time, so the feeding data monitoring and processing module immediately acts on the collaborative feeding control module, closes the feeding control valve, and closes the feed control valve on the feed pipe 31 through the collaborative feeding control module, stops feeding to the extrusion system, avoids air from entering the extrusion system, and causes melt pressure fluctuations, and at the same time transmits an abnormal alarm to the control system through the auxiliary control abnormality module. At this time, the abnormal cause may be the complete failure of the sealing hopper 3 and the abnormality of the negative pressure feeding of the automatic feeding system 2. The control system promptly stops the feeding operation of the automatic feeding system 2, and transmits an alarm signal to the production personnel and technicians, prompting them to make a timely and effective emergency response.

[0067] In view of current actual needs, the protection scope of the above-mentioned implementation mode adopted in this application is not limited to this. Various changes made within the knowledge scope of technical personnel in this field 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 processing plastic particles with an automatic feeding structure, characterized in that: The invention comprises a device body (1) and a feeding auxiliary monitoring unit mounted in a control box and connected to a control system signal, an automatic feeding system (2) being provided on the right side of the device body (1), and a sealed feeding hopper (3) cooperating with the automatic feeding system (2) being 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) in communication therewith, a feeding state sensing component (4) is provided on the upper side of the feeding pipe (32), a state triggering component (6) is provided in the feeding state sensing component (4), and an auxiliary control pipe (5) in communication therewith is installed on the upper end of the feeding state sensing component (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 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 (6) 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 (5) signal; The feeding state sensing component (4) includes a sensing bucket (41) fixedly mounted on the upper end of the feeding tube (32) and connected to the feeding tube (32), the upper end of the sensing bucket (41) is fixedly connected to an elastic developing sleeve (42) connected thereto, the outer end of the sensing bucket (41) is fixedly connected to a plurality of floating guide rods (44), the upper end of the floating guide rod (44) is fixedly connected to a limit block, the lower end of the limit block is fixedly connected to a limit contact block, the input end of the feeding data monitoring and processing module is also connected to a limit abnormality trigger module, and the input end of the limit abnormality trigger module is connected to a limit contact block signal; The state trigger component (6) comprises a trigger gasket (61) and a trigger ring (62); the trigger gaskets (61) are fixedly connected to the upper and lower ends of the inner wall of the elastic display sleeve (42); the trigger rings (62) are fixedly connected to the adjacent ends of the two trigger gaskets (61); and the input end of the negative pressure trigger sensing module is signal-connected to the trigger ring (62).

2. The wire drawing device for plastic granule processing with an automatic feeding structure according to claim 1, characterized in that: The upper end of the elastic developing sleeve (42) is fixedly connected to the induction floating plate (43), and the upper end of the floating guide rod (44) passes through the induction floating plate (43) and is in sliding engagement with the induction floating plate (43).

3. The wire drawing device for plastic particle processing with an automatic feeding structure according to claim 2, characterized in that: The upper end of the induction floating plate (43) is fixedly connected to an abutment block that matches the limit contact block.

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

5. The wire drawing device for plastic granule processing with an automatic feeding structure according to claim 1, characterized in that: A trigger spring (63) is fixedly connected between the two trigger gaskets (61) and is slidably sleeved on the outside of the trigger ring (62). When no external force is applied, the elastic developing sleeve (42) and the trigger spring (63) are both in an elongated state. When the sealed loading hopper (3) is in a vacuum loading state, the elastic developing sleeve (42) and the trigger spring (63) are both in a contracted state.

6. 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) connected thereto, and the right end of the conveying pipe (33) is connected to the automatic feeding system (2). A feeding regulating valve is fixedly installed on the feeding pipe (32), and an infrared sensing probe is fixedly installed on the inner wall of the sealing feeding hopper (3); The input end of the feeding data monitoring and processing module is also connected to the hopper balance acquisition module, the input end of the hopper balance acquisition module is connected to the infrared sensing probe signal, the output end of the feeding data monitoring and processing module is connected to the collaborative feeding control module, and the output end of the collaborative feeding control module is connected to the feeding control valve signal.

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

8. The wire drawing device for processing plastic particles 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 the auxiliary control abnormality module, and the output end of the auxiliary control abnormality module is connected to the control system signal.

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