Accurate control type of leakage prevention spiral extrusion glue feeding device

Abstract

This invention discloses a precision-controlled, leak-proof spiral extrusion adhesive supply device, relating to the field of adhesive bonding and processing technology. It includes an extruder body, a material control actuator, an anti-overflow and leak-proof sealing mechanism, an adaptive cleaning and mixing component, and a spiral extrusion conveying mechanism. The extruder body has an extrusion terminal box at the front end, housing the anti-overflow and leak-proof sealing mechanism, and a power drive box at the rear end. A PLC main control panel is located at the front end, housing the spiral extrusion conveying mechanism. A premixing and mixing treatment box is located at the top, equipped with a feed guide groove and a toothed disc protective box. An adaptive cleaning and mixing component is built-in, achieving mixing and cleaning of the bin walls through meshing transmission. The material control actuator connects the premixing box and the extruder, and includes a transition box, a material control and resistance adjustment plate, etc., to adjust the feed rate and homogenize the adhesive. The spiral extrusion conveying mechanism includes a conveying cylinder with a tapered front end, working in conjunction with a conveying auger and featuring flow monitoring. The anti-overflow and leak-proof sealing mechanism uses a transmission-controlled arc-shaped baffle for sealing, adaptable to different adhesives.

Description

Technical Field

[0001] This invention relates to the field of adhesive bonding and processing technology, specifically to a precision-controlled, leak-proof spiral extrusion adhesive supply device. Background Technology

[0002] In the field of adhesive bonding processing, the core value of screw extrusion equipment lies in achieving quantitative delivery and precise bonding of adhesives. Its quantity control accuracy is a key factor determining the stability of product bonding quality. However, traditional screw extrusion bonding equipment is limited by its technical architecture and suffers from three major pain points in actual production, making it difficult to meet the needs of high-precision processing:

[0003] Firstly, it is difficult to balance the uniformity of premixing with the material utilization rate. Traditional equipment generally adopts a single-axis fixed trajectory mixing mode, where the mixing blades can only rotate in one direction. The adhesive material forms a fixed circulation in the mixing chamber, and different components are prone to stratification and sedimentation, resulting in poor mixing uniformity and significant fluctuations in subsequent bonding strength. At the same time, the problem of residue on the chamber wall is prominent, and there is a lack of active cleaning mechanism. After each mixing, a certain amount of adhesive material will adhere to the chamber wall, which not only wastes raw materials but also requires periodic shutdowns for disassembly and cleaning. After the residual adhesive material hardens, it will contaminate the new material, forming a vicious cycle.

[0004] Secondly, the accuracy of rubber material conveying control is affected by multiple factors, resulting in extremely poor stability. The control logic of traditional equipment relies on the adjustment of a single motor speed and has not established a linkage control mechanism for temperature, viscosity, and flow rate. When the ambient temperature fluctuates, the change in rubber material viscosity will lead to significant deviations in the output. The screw conveyor channel is designed with a constant diameter, which cannot form a gradient pressure. The rubber material is prone to "pulse discharge" at the end of the conveying process, resulting in large differences in the amount of rubber material coated in the same batch of products, which seriously affects the consistency of bonding.

[0005] Third, the dynamic adaptability of sealing and discharge is lacking. The sealing structure of traditional equipment is mostly a fixed rubber gasket design, and the sealing force is not adjustable. For high-viscosity rubber materials, leakage is likely to occur due to insufficient sealing force, resulting in material loss. For low-viscosity rubber materials, the discharge resistance will increase sharply due to excessive sealing, and may even cause the conveyor motor to overload and stop. Moreover, the state switching depends on manual knob adjustment, and each switching takes a long time, which cannot adapt to the fast-paced production changeover needs of automated production lines. Summary of the Invention

[0006] The purpose of this invention is to provide a precise quantity control and leak-proof spiral extrusion glue supply device to solve the problems of premixing uniformity, whole-process quantity control accuracy, and dynamic adaptation of sealing in traditional equipment.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a precision-controlled, leak-proof screw extrusion glue supply device, comprising a glue extruder body, a material control actuator, an anti-overflow and leak-proof sealing mechanism, an adaptive cleaning and stirring assembly, and a screw extrusion conveying mechanism;

[0008] An extrusion terminal box is fixedly installed on the front surface of the rubber extruder body. A discharge through hole is opened in the center of the surface of the extrusion terminal box. An anti-overflow and anti-leakage sealing mechanism is set inside the extrusion terminal box. A power drive box is fixedly connected to the rear surface of the rubber extruder body. A PLC main control panel is set on the front surface of the rubber extruder body. A screw extrusion conveying mechanism is installed inside the rubber extruder body. A premixing and mixing treatment box is set at the upper end of the rubber extruder body. A feed guide groove is opened at the upper end of the premixing and mixing treatment box. A toothed disc protective box is connected to one side of the surface of the premixing and mixing treatment box. An adaptive cleaning and mixing component is installed inside the premixing and mixing treatment box. A material control actuator is fixedly connected at the connection between the lower end of the premixing and mixing treatment box and the upper surface of the rubber extruder body. An intelligent temperature controller is set on one side of the outer end of the material control actuator.

[0009] The adaptive cleaning and mixing assembly includes an internal gear transmission ring, a linkage gear disc, a drive gear disc, a mixing support rod, a mixing rod, mixing blades, and a chamber wall cleaning scraper. Two internal gear transmission rings are installed at the front end of the gear disc protective box. A drive gear disc is located at the center of each of the two internal gear transmission rings. Linkage gear discs are located around the outer perimeter of each drive gear disc. A mixing support rod and a mixing rod are fixedly connected to the center of the axes of the linkage gear disc and the drive gear disc, respectively. The front ends of the mixing support rod and the mixing rod extend into the premixing and mixing tank. Several mixing blades are arranged on the surface of both the mixing support rod and the mixing rod. A chamber wall cleaning scraper is installed on the surface of the mixing support rod near the inner wall of the premixing and mixing tank. The outer ends of the drive gear disc mesh with the outer ends of the linkage gear discs, and the outer ends of the linkage gear discs mesh with the inner sides of the internal gear transmission rings.

[0010] The rear end of the toothed disc protective box is also equipped with a stirring motor. The output end of the stirring motor is connected to the shaft of one of the driving toothed discs. Rotating toothed discs are respectively provided on the outer end surfaces of the two driving toothed discs, and a transmission chain is movably sleeved on the outer end of the rotating toothed discs.

[0011] The material control actuator includes a transition box, a material control adjustment plate, a telescopic drive rod, and an electrically controlled drive pump. The upper end of the transition box extends to the bottom surface inside the premixing and mixing tank, and the lower end of the transition box extends to the upper end inside the rubber extruder body. Limiting grooves are respectively opened around the inner wall of the upper end of the transition box. The material control adjustment plate is slidably arranged inside the limiting groove. The telescopic drive rod is fixedly connected to the lower surface of the material control adjustment plate, and the electrically controlled drive pump is fixedly connected to the other end of the telescopic drive rod.

[0012] The material control actuator also includes a rotary adjustment control rod, a flow-guiding and homogenizing fan blade, and a flow-guiding motor; a rotary adjustment control rod is provided at the center of the lower end inside the transition box, a flow-guiding motor is fixedly connected to one end of the rotary adjustment control rod, and several flow-guiding and homogenizing fan blades are arranged and installed on the surface of the rotary adjustment control rod.

[0013] Preferably, the spiral extrusion conveying mechanism includes a conveying cylinder, a conveying auger, a conveying motor, and a flow monitoring sensor; the conveying cylinder is fixedly installed inside the rubber extruder body, and the front end of the conveying cylinder extends into the discharge through hole of the extrusion terminal box. The inner diameter of the conveying cylinder gradually decreases along the axis at the front end. A conveying auger is provided in the center of the conveying cylinder. One end of the conveying auger extends through the rubber extruder body into the power drive box and is connected to the conveying motor. A flow monitoring sensor is fixedly installed on the upper end of the conveying motor.

[0014] Preferably, a heat-conducting energy storage chamber is respectively attached to the outer surface of the conveying cylinder inside the body of the rubber extruder, and a number of electromagnetic induction heating tubes are arranged inside the heat-conducting energy storage chamber.

[0015] Preferably, the anti-overflow and anti-leakage sealing mechanism includes an external gear transmission ring, a fixed mounting block, a linkage transmission block, a transmission adjustment screw, a torque monitoring sensor, and a torque servo motor. An external gear transmission ring is installed at the center of the rear end surface inside the extrusion terminal box, and the external gear transmission ring is correspondingly positioned at the outer end of the discharge through hole. Fixed mounting blocks are respectively arranged around the rear end surface inside the extrusion terminal box. A sliding groove is opened on the front end surface of each fixed mounting block, and a linkage transmission block is arranged at the front end of each fixed mounting block. A threaded through hole is opened on the central surface of the lower linkage transmission block inside the extrusion terminal box. A transmission adjustment screw is threaded into the threaded through hole. One end of the transmission adjustment screw extends to the outer end of the extrusion terminal box and is fixedly connected to a torque monitoring sensor. A torque servo motor is fixedly installed on the upper end of the torque monitoring sensor.

[0016] Preferably, each of the rear end surfaces of the linkage transmission block is provided with a limiting guide slider, and the outer ends of the limiting guide sliders are slidably sleeved inside the slide groove. Several inclined racks are arranged on the front end surface of the linkage transmission block, and several transmission teeth are arranged on the opposite inner surfaces of the linkage transmission block. The transmission teeth are respectively engaged with the outer end of the external gear transmission ring for transmission.

[0017] Preferably, the anti-overflow and anti-leakage sealing mechanism further includes a guide positioning slider, an inclined rack, a transmission support plate, an arc-shaped material-blocking sealing baffle, and a high-elastic sealing rubber pad; guide grooves are respectively opened around the front surface of the extrusion terminal box, and guide positioning sliders are slidably fitted inside the guide grooves. Several inclined racks are respectively arranged on the inner surface of the guide positioning slider, and the inclined racks are arranged in a relative transmission engagement with each other; a transmission support plate is fixedly connected to the front surface of the guide positioning slider, and a discharge channel is opened through the extrusion terminal box at the front end of the transmission support plate, extending into the interior of the channel. An arc-shaped material-blocking sealing baffle is fixedly installed on the front surface of the transmission support plate, and a high-elastic sealing rubber pad is installed on both sides of the surface of the arc-shaped material-blocking sealing baffle.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] Compared to existing technologies where the mixing mechanism rotates in only one direction, easily creating dead zones and making it difficult to clean residual materials on the bin walls, this equipment achieves multi-dimensional mixing and real-time cleaning through an adaptive cleaning mixing component. The meshing transmission between the drive toothed disc and the linkage toothed disc creates a three-dimensional mixing trajectory between the center and the surrounding area for the mixing rod and the mixing support rod. Combined with the shearing and tumbling action of the mixing fan blades, this significantly improves the uniformity of the adhesive mixture. At the same time, the bin wall cleaning scraper rotates synchronously with the mixing support rod, which can scrape off residual adhesive materials on the inner wall of the premixing and mixing treatment tank in real time. This avoids the waste of raw materials, secondary pollution, and tedious subsequent cleaning and maintenance caused by material residue in traditional equipment, thus reducing equipment operating costs.

[0020] In existing technologies, adhesive material conveying often relies on manual valve adjustment or simple mechanical control, which easily leads to large flow fluctuations and low control accuracy, directly affecting bonding quality. This equipment solves this problem through closed-loop collaboration between the material control actuator and the screw extrusion conveying mechanism: the material control adjustment plate achieves stepless adjustment of the feeding channel through a telescopic drive rod, and the secondary homogenization by the guide and homogenizing fan blades ensures uniform initial feeding; during the screw extrusion stage, the flow monitoring sensor feeds back the flow data to the PLC main control panel in real time, and dynamic closed-loop control is formed by adjusting the material control actuator or the conveying motor, which significantly reduces the error in adhesive material conveying; in addition, the tapered structure at the front end of the conveying cylinder enhances extrusion stability and avoids the problem of uneven discharge caused by pressure fluctuations in traditional equipment, significantly improving the accuracy of the bonding process and product consistency.

[0021] Addressing the issues of uneven heating, large temperature fluctuations, and leakage due to sealing failure in existing technologies, this equipment achieves a breakthrough through a dual design of intelligent temperature control and dynamic sealing. The intelligent temperature controller ensures stable temperature of the rubber compound throughout the premixing, conveying, and extrusion processes by dynamically adjusting the power of the electromagnetic induction heating tube and utilizing the heat storage characteristics of the thermal energy storage chamber, thus preventing abnormal flowability or viscosity of the rubber compound due to unsuitable temperature. The anti-overflow and anti-leakage sealing mechanism achieves adaptive control of the driving force and sealing force of the arc-shaped material-blocking sealing baffle through the cooperation of a torque servo motor and a torque monitoring sensor. The high-elastic sealing rubber gasket further enhances the sealing reliability, adapting to the sealing requirements of rubber compounds of different viscosities and pressures, and enabling rapid switching between sealing and discharging states. This completely solves the problem of rubber compound leakage caused by excessively tight sealing leading to component wear or inadequate sealing in traditional equipment. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the adaptive cleaning and stirring assembly structure of the present invention;

[0024] Figure 3 This is a further structural schematic diagram of the adaptive cleaning and stirring assembly of the present invention;

[0025] Figure 4 This is a schematic diagram of the material control actuator of the present invention;

[0026] Figure 5 This is a schematic diagram of the intelligent temperature controller structure of the present invention;

[0027] Figure 6 This is a schematic diagram of the spiral extrusion conveying mechanism of the present invention;

[0028] Figure 7 This is a schematic diagram of the anti-overflow and anti-leakage sealing mechanism of the present invention;

[0029] Figure 8 This is a schematic diagram of the linkage transmission block structure of the present invention;

[0030] Figure 9 This is a further structural schematic diagram of the anti-overflow and anti-leakage sealing mechanism of the present invention.

[0031] In the diagram: 1. Rubber extruder body; 11. Extrusion terminal box; 12. Power drive box; 2. Premixing and mixing treatment box; 21. Feed guide chute; 22. Gear disc protection box; 3. Material control actuator; 31. Transition box; 32. Quantity control and material resistance adjustment plate; 33. Telescopic drive rod; 34. Electrically controlled drive pump; 35. Rotation adjustment control rod; 36. Guide and homogenizing fan blade; 37. Guide motor; 4. PLC main control panel; 5. Overflow and leakage prevention sealing mechanism; 51. External gear transmission ring; 52. Fixed mounting block; 53. Linkage transmission block; 54. Transmission adjustment screw; 55. Torque monitoring sensor; 56. Torque servo motor; 57. Limit guide slider; 58. Inclined rack; 59. 510. Transmission gears; 511. Guide positioning slider; 512. Inclined rack; 513. Transmission support plate; 514. Arc-shaped material blocking sealing baffle; 515. High-elastic sealing rubber gasket; 6. Intelligent temperature controller; 61. Heat-conducting energy storage chamber; 62. Electromagnetic induction heating tube; 7. Adaptive cleaning and stirring assembly; 71. Internal gear transmission ring; 72. Linkage gear disc; 73. Drive gear disc; 74. Stirring support rod; 75. Stirring rod; 76. Stirring fan blade; 77. Chamber wall cleaning scraper; 78. Stirring motor; 79. Rotating gear disc; 710. Transmission chain; 81. Screw extrusion conveying mechanism; 82. Conveying cylinder; 83. Conveying auger; 84. Conveying motor; 85. Flow monitoring sensor. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] Please see Figures 1-9As shown, this invention provides a technical solution: a precision-controlled, leak-proof screw extrusion adhesive supply device, comprising an extruder body 1, a material control actuator 3, an anti-overflow and leak-proof sealing mechanism 5, an adaptive cleaning and mixing assembly 7, and a screw extrusion conveying mechanism 8. It can realize controlled material delivery and bonding operations. The extruder body 1 serves as the basic carrier; the front-end extrusion terminal box 11 outputs material through a discharge port; the internal anti-overflow and leak-proof sealing mechanism 5 prevents material overflow and ensures a seal; the rear-end power drive box 12 provides power support for the equipment; the front-end PLC main control panel 4; and the internal screw extrusion conveying mechanism 8 is responsible for the extrusion and conveying of material. The pre-mixing and stirring treatment box 2 at its upper end is used for material... Material premixing: Materials are received through the upper feed guide chute 21 and guided into the premixing and mixing tank 2 via a hydraulic system and conduit, ensuring stable power for material conveying. To achieve precise material proportioning and mixing, the equipment is equipped with an intelligent proportioning and feeding control device at the feed guide chute 21. This device utilizes existing technology, details of which will not be elaborated here. It is linked to the PLC main control panel 4 and can precisely adjust the feed rate of various materials by controlling the hydraulic conveying pressure and flow rate of different feed conduits according to preset material proportioning parameters. A toothed disc protective box 22 on one side of the feed guide chute 21 protects the internal transmission components. The internal adaptive cleaning and mixing component 7 can mix and clean the materials. The premixing and mixing tank 2 has a cleaning chamber wall; the material control actuator 3 at the connection between the lower end of the premixing and mixing tank 2 and the rubber extruder body 1 can control the material conveying amount, and the intelligent temperature controller 6 on the side can adjust the material temperature to ensure that it is in a suitable state. In the adaptive cleaning and mixing assembly 7, the meshing transmission of the internal gear transmission ring 71, the linkage gear disc 72 and the drive gear disc 73 drives the mixing support rod 74 and the mixing rod 75 to rotate. The surface mixing fan blades 76 fully mix the material. The chamber wall cleaning scraper 77 on the mixing support rod 74 can scrape off the residual material on the inner wall of the premixing and mixing tank 2 to achieve cleaning; the mixing motor 78 provides power for mixing, and the rotating gear disc 79 cooperates with the transmission chain 710 to make the two drive gear discs 73 rotate synchronously. To ensure uniform mixing, the transition box 31 of the material control actuator 3 serves as a material channel. The upper control flow plate 32 slides under the action of the telescopic drive rod 33 and the electrically controlled drive pump 34, which can adjust the material throughput. The internal lower rotary adjustment control rod 35 rotates under the drive of the guide motor 37, which drives the guide homogenizing fan blade 36 to rotate, guiding and homogenizing the material. The conveying cylinder 81 of the spiral extrusion conveying mechanism 8 provides a channel for material conveying. The gradually narrowing inner diameter at the front end helps to enhance the extrusion effect. The internal conveying auger 82 rotates under the drive of the conveying motor 83 to realize the spiral extrusion conveying of the material. The flow monitoring sensor 84 on the conveying motor 83 can monitor the material flow in real time for easy control.The heat-conducting energy storage chamber 61 outside the conveying cylinder 81 and the electromagnetic induction heating tube 62 inside can heat and keep the material warm, maintaining its good fluidity. In the anti-overflow and anti-leakage sealing mechanism 5, the external gear transmission ring 51 meshes with the transmission teeth 59 on the linkage transmission block 53. Under the action of the transmission adjusting screw 54 (driven by the torque servo motor 56 and the torque monitoring sensor 55 monitoring the torque), the linkage transmission block 53 slides in the groove of the fixed mounting block 52 through the limit guide slider 57. The inclined rack 58 at the front end of the linkage transmission block 53 cooperates with the inclined rack 511 on the guide positioning slider 510, driving the guide positioning slider 510 to slide, causing the arc-shaped material blocking sealing baffle 513 at the front end of the transmission support plate 512 to move, and in conjunction with the high-elastic sealing rubber pad 514, achieving anti-overflow and anti-leakage sealing of the discharge hole.

[0034] according to Figure 1 , Figure 2 and Figure 3 As shown, the adaptive cleaning mixing assembly 7 has two internal gear transmission rings 71 installed at the front end of the toothed disc protective box 22. Each ring has a drive toothed disc 73 in the center of its interior. The drive toothed discs 73 have linkage toothed discs 72 around their outer ends. The drive toothed discs 73 and linkage toothed discs 72, as well as the linkage toothed discs 72 and internal gear transmission rings 71, are all meshed with each other. The shafts of the linkage toothed discs 72 and the drive toothed discs 73 are respectively fixedly connected to the mixing support rod 74 and the mixing rod 75. The front ends of both extend into the premixing and mixing treatment box 2. The output end of the mixing motor 78 at the rear end of the toothed disc protective box 22 is connected to the shaft of one of the drive toothed discs 73. The rotating toothed discs 79 at the outer ends of the two drive toothed discs 73 are covered with transmission chains 710.

[0035] During operation, the stirring motor 78 drives the connected drive gear 73 to rotate, which in turn drives another drive gear 73 to rotate synchronously via the transmission chain 710. Under meshing action, the linkage gear 72 rotates with the drive gear 73 within the inner gear transmission ring 71, thereby driving the stirring support rod 74 and stirring rod 75 to rotate. Several stirring blades 76 on their surface fully stir and mix the adhesive material in the premixing treatment tank 2. At the same time, the tank wall cleaning scraper 77 on the surface of the stirring support rod 74 near the inner wall of the tank can clean the tank wall during the stirring process to avoid adhesive residue, thus achieving simultaneous stirring and cleaning and improving the premixing treatment effect.

[0036] according to Figure 1 and Figure 4As shown, the material control actuator 3 has an upper end that extends to the bottom of the premixing and mixing tank 2 and a lower end that extends to the upper end of the rubber extruder body 1. A control quantity resistance adjustment plate 32 is slidably installed in the limiting grooves opened around the upper inner wall of the transition box 31. Its lower end surface is fixedly connected to the telescopic drive rod 33. The other end of the telescopic drive rod 33 is connected to the electric control drive pump 34. A rotary adjustment control rod 35 is provided in the center of the lower end of the transition box 31. One end of the rod is fixedly connected to the flow guide motor 37. Several flow guide and homogenization fan blades 36 are also arranged on its surface.

[0037] During operation, the electrically controlled pump 34 drives the quantity control plate 32 to slide within the limiting groove via the telescopic drive rod 33, thereby adjusting the size of the feed channel of the transition box 31 and controlling the amount of rubber material conveyed. At the same time, the guide motor 37 drives the rotary adjustment control rod 35 to rotate, which in turn drives the guide homogenizing fan blade 36 to rotate, stirring and homogenizing the rubber material passing through the transition box 31, ensuring that the rubber material entering the rubber extruder body 1 has a uniform texture, and providing a good foundation for subsequent spiral extrusion and conveying processes.

[0038] according to Figure 1 , Figure 5 and Figure 6 As shown, the intelligent temperature controller 6 is located on one side of the outer end of the material control actuator 3. Its core related components are the heat-conducting energy storage chamber 61 which is attached to the outer surface of the conveying cylinder 81 inside the rubber extruder body 1, and several electromagnetic induction heating tubes 62 arranged inside the heat-conducting energy storage chamber 61.

[0039] By adjusting the working state of the electromagnetic induction heating tube 62 and utilizing the heat storage and conduction characteristics of the heat-conducting energy storage chamber 61, the temperature of the rubber material in the conveying cylinder 81 and the rubber material conveyed in the material control actuator 3 is regulated. This maintains a suitable temperature for the rubber material during the processing, avoids changes in the rubber material properties due to unsuitable temperature, ensures that the flowability and viscosity of the rubber material meet the requirements of subsequent processing, and provides temperature protection for the stable operation of the entire equipment.

[0040] Furthermore, the conveying cylinder 81 is fixed inside the rubber extruder body 1, and its front end extends into the discharge through hole of the extrusion terminal box 11. The inner diameter of the conveying cylinder 81 gradually decreases along the axis at the front end. A conveying auger 82 is provided in the center of the conveying cylinder 81. One end of the auger passes through the inside of the rubber extruder body 1, extends into the power drive box 12 and is connected to the conveying motor 83. The flow monitoring sensor 84 is fixedly installed on the upper end of the conveying motor 83.

[0041] During operation, the conveyor motor 83 drives the conveyor auger 82 to rotate. With the help of the structural design of the reduced inner diameter of the front end of the conveyor cylinder 81, the rubber material entering the conveyor cylinder 81 is squeezed, realizing the forward conveying of the rubber material. The flow monitoring sensor 84 monitors the conveying flow of the rubber material in real time and feeds back the information. With the overall control of the equipment, the conveying amount of rubber material is controlled, providing a stable supply of rubber material for the subsequent bonding process.

[0042] according to Figure 1 , Figure 7 , Figure 8 and Figure 9 As shown, the overflow and leakage prevention sealing mechanism 5 has an external toothed transmission ring 51 installed in the center of the rear end surface inside the extrusion terminal box 11, and fixed mounting blocks 52 are provided around it. The front end of the ring has a sliding groove, and a linkage transmission block 53 is provided at the front end. The central threaded through hole of the lower linkage transmission block 53 is matched with the transmission adjustment screw 54. One end of the screw extends to the outside of the box and is connected to the torque monitoring sensor 55. The upper end of the sensor is equipped with a torque servo motor 56. The limit guide slider 57 at the rear end of the linkage transmission block 53 slides in the sliding groove. The front end has an inclined rack 58, and the inner side has transmission teeth 59 (meshing with the external toothed transmission ring 51). The guide positioning slider 510 slides in the guide groove around the front end inside the extrusion terminal box 11. The inner side of the guide slider 511 has an inclined rack 511 (matching the inclined rack 58). The transmission support plate 512 extending from the front end through the discharge groove is equipped with an arc-shaped material blocking sealing baffle 513. There are high-elastic sealing rubber pads 514 on both sides of the baffle.

[0043] During operation, the torque servo motor 56 drives the transmission adjusting screw 54 to rotate, which in turn moves the lower linkage transmission block 53. Through the meshing of the external gear transmission ring 51 and the transmission teeth 59, the other linkage transmission blocks 53 move synchronously. The inclined rack 58 of the linkage transmission block 53 cooperates with the inclined rack 511 of the guide positioning slider 510, which drives the arc-shaped material blocking sealing baffle 513 to move, thereby sealing the discharge through hole. The high-elastic sealing rubber gasket 514 enhances the sealing performance, and the torque monitoring sensor 55 monitors the torque to ensure that the sealing force is appropriate and effectively prevents the leakage of adhesive.

[0044] The overall effect achieved by the organization is as follows:

[0045] After the equipment is started, the rubber material to be processed is introduced into the premixing and mixing treatment box 2 through the conduit of the intelligent proportioning and feeding control equipment. The material enters the box through the feeding guide 21 at the top of the premixing and mixing treatment box 2, and the self-adaptive cleaning and mixing component 7 completes the uniform mixing of the material and the cleaning of the box wall. The stirring motor 78 inside the toothed disc protective box 22 starts, and the output end drives the connected drive toothed disc 73 to rotate. Through the cooperation of the rotating toothed disc 79 at the outer end of the two drive toothed discs 73 and the transmission chain 710, the two drive toothed discs 73 achieve synchronous rotation. The drive toothed disc 73 meshes with the surrounding linkage toothed discs 72, and the linkage toothed discs 72 mesh with the inner side of the inner tooth transmission ring 71 to form a transmission structure, which drives the stirring rod 75 on the axis of the drive toothed disc 73 and the stirring support rod 74 on the axis of the linkage toothed disc 72 to rotate synchronously. The stirring fan blades 76 on the surface of the stirring rod 75 and the stirring support rod 74 rotate at high speed, performing multi-dimensional shearing and tumbling of the adhesive material in the premixed mixing treatment box 2 to achieve uniform mixing. At the same time, the wall cleaning scraper 77 on the surface of the stirring support rod 74 near the inner wall of the box rotates with the rod, scraping off the adhesive material remaining on the inner wall of the premixed mixing treatment box 2 in real time to avoid scaling or uneven mixing. The premixed rubber compound enters the material control actuator 3 through the channel at the lower end of the premixing and mixing tank 2. The electrically controlled drive pump 34 receives the command from the PLC main control panel 4 and drives the telescopic drive rod 33 to extend and retract, causing the quantity control and resistance adjustment plate 32 to slide in the limiting groove at the upper end of the transition box 31. By changing the gap between the quantity control and resistance adjustment plate 32 and the inner wall of the transition box 31, the amount of rubber compound entering the rubber extruder body 1 per unit time is adjusted. At the same time, the guide motor 37 starts, drives the rotary adjustment control rod 35 to rotate, and drives the guide homogenizing fan blade 36 on its surface to rotate, performing secondary mixing on the rubber compound passing through the transition box 31 to ensure that the rubber compound entering the rubber extruder body 1 has a uniform texture. During the process of the rubber compound entering the screw extrusion conveyor 8 through the material control actuator 3, the intelligent temperature controller 6 intervenes throughout the process. According to the preset temperature parameters of the rubber compound type, it controls the electromagnetic induction heating tube 62 in the heat conduction energy storage chamber 61 to start. The heat conduction energy storage chamber 61 transfers heat to the inside of the conveying cylinder 81, and at the same time indirectly heats the transition box 31 of the material control actuator 3. The power of the electromagnetic induction heating tube 62 is dynamically adjusted according to the real-time temperature feedback. Combined with the heat storage characteristics of the heat conduction energy storage chamber 61, it ensures that the temperature of the rubber compound is stable during the controlled conveying and screw extrusion process, thus ensuring its fluidity and viscosity.After being controlled by volume and temperature, the rubber material enters the spiral extrusion conveying mechanism 8 inside the rubber extruder body 1. The conveying motor 83 in the power drive box 12 starts, driving the conveying auger 82 to rotate at high speed inside the conveying cylinder 81. The inner diameter of the front end of the conveying cylinder 81 gradually narrows along the axis. The rubber material moves towards the extrusion terminal box 11 under the push of the conveying auger 82. During the process, it is subjected to gradually increasing extrusion pressure due to the narrowing of the channel, eventually forming a high-pressure rubber material flow. The flow monitoring sensor 84 at the upper end of the conveying motor 83 monitors the instantaneous flow rate of the rubber material in real time and transmits the data to the PLC main control panel 4 in real time. If the flow rate deviates from the preset value, the PLC main control panel 4 immediately instructs the material control execution mechanism 3 or the conveying motor 83 to make corrections, forming a closed-loop control. When the rubber compound is output through the discharge port of the extrusion terminal box 11, the anti-overflow and anti-leakage sealing mechanism 5 prevents rubber compound leakage through dynamic sealing control. The torque servo motor 56 receives instructions from the PLC main control panel 4 and drives the transmission adjusting screw 54 to rotate, causing the lower linkage transmission block 53 to slide along the slide groove of the fixed mounting block 52. The transmission teeth 59 on the inner side of the lower linkage transmission block 53 mesh with the outer gear transmission ring 51, causing the outer gear transmission ring 51 to rotate, thereby causing the other linkage transmission blocks 53 to slide synchronously. The inclined rack 58 at the front end of the linkage transmission block 53... The inclined rack 511 engages with the guide positioning slider 510, pushing the guide positioning slider 510 to move. This ultimately causes the arc-shaped material-blocking sealing baffle 513 to converge towards or move away from the center of the discharge through hole. When sealing is required, the arc-shaped material-blocking sealing baffle 513 converges, and its surface high-elastic sealing rubber gasket 514 tightly adheres to the inner wall of the discharge through hole to form an annular seal. The torque monitoring sensor 55 monitors the torque of the transmission adjusting screw 54 in real time to ensure appropriate sealing force. When discharge is required, the baffle moves in the opposite direction to open the channel, ensuring smooth output of high-pressure adhesive. The entire process achieves rapid switching between sealing and discharge states, and the sealing force is adjustable, effectively adapting to the sealing requirements of adhesives with different viscosities and pressures.

[0046] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A precision-controlled, leak-proof screw extrusion glue supply device, characterized in that, It includes the rubber extruder body (1), the material control actuator (3), the anti-overflow and anti-leakage sealing mechanism (5), the adaptive cleaning and stirring assembly (7), and the screw extrusion conveying mechanism (8); An extrusion terminal box (11) is fixedly installed on the front surface of the rubber extruder body (1). A discharge through hole is opened in the center of the surface of the extrusion terminal box (11). An anti-overflow and anti-leakage sealing mechanism (5) is set inside the extrusion terminal box (11). A power drive box (12) is fixedly connected to the rear surface of the rubber extruder body (1). A PLC main control panel (4) is set on the front surface of the rubber extruder body (1). A screw extrusion conveying mechanism (8) is installed inside the rubber extruder body (1). (1) A premixing and mixing treatment box (2) is provided at the upper end. A feeding guide groove (21) is provided at the upper end of the premixing and mixing treatment box (2). A toothed disc protective box (22) is connected to one side of the surface of the premixing and mixing treatment box (2). An adaptive cleaning and mixing component (7) is installed inside the premixing and mixing treatment box (2). A material control actuator (3) is fixedly connected at the connection between the lower end of the premixing and mixing treatment box (2) and the upper surface of the rubber extruder body (1). An intelligent temperature controller (6) is provided on one side of the outer end of the material control actuator (3). The adaptive cleaning and stirring assembly (7) includes an internal gear transmission ring (71), a linkage gear disc (72), a drive gear disc (73), a stirring support rod (74), a stirring rod (75), a stirring fan blade (76), and a bin wall cleaning scraper (77). Two internal gear transmission rings (71) are installed at the front end of the gear disc protective box (22). A drive gear disc (73) is respectively arranged in the center of the two internal gear transmission rings (71). Linkage gear discs (72) are respectively arranged around the outer perimeter of the drive gear discs (73). A stirring device is fixedly connected to the center of the axis of the linkage gear disc (72) and the drive gear disc (73). The support rod (74) and the stirring rod (75) extend to the interior of the premixing and mixing tank (2) at their front ends. Several stirring blades (76) are arranged on the surface of the stirring support rod (74) and the stirring rod (75). A cleaning scraper (77) is installed on the surface of the stirring support rod (74) near the inner wall of the premixing and mixing tank (2). The outer end of the drive gear plate (73) meshes with the outer end of the linkage gear plate (72), and the outer end of the linkage gear plate (72) meshes with the inner side of the internal gear transmission ring (71). The rear end of the toothed disc protective box (22) is also equipped with a stirring motor (78). The output end of the stirring motor (78) is connected to the shaft of one of the driving toothed discs (73). Rotating toothed discs (79) are respectively provided on the outer end surfaces of the two driving toothed discs (73), and a transmission chain (710) is movably sleeved on the outer end of the rotating toothed discs (79). The material control actuator (3) includes a transition box (31), a quantity control and resistance adjustment plate (32), a telescopic drive rod (33), and an electric drive pump (34). The upper end of the transition box (31) extends to the bottom of the premixing and mixing tank (2), and the lower end of the transition box (31) extends to the upper end of the rubber extruder body (1). Limiting grooves are opened around the upper inner wall of the transition box (31). The quantity control and resistance adjustment plate (32) is slidably arranged inside the limiting groove. The telescopic drive rod (33) is fixedly connected to the lower surface of the quantity control and resistance adjustment plate (32). The electric drive pump (34) is fixedly connected to the other end of the telescopic drive rod (33). The material control actuator (3) also includes a rotary adjustment control rod (35), a flow guiding and homogenizing fan blade (36), and a flow guiding motor (37); the rotary adjustment control rod (35) is provided at the lower center of the transition box (31), a flow guiding motor (37) is fixedly connected to one end of the rotary adjustment control rod (35), and a number of flow guiding and homogenizing fan blades (36) are arranged and installed on the surface of the rotary adjustment control rod (35).

2. The precision-controlled, leak-proof screw extrusion glue supply device according to claim 1, characterized in that: The spiral extrusion conveying mechanism (8) includes a conveying cylinder (81), a conveying auger (82), a conveying motor (83), and a flow monitoring sensor (84). The conveying cylinder (81) is fixedly installed inside the rubber extruder body (1), and the front end of the conveying cylinder (81) extends into the discharge through hole of the extrusion terminal box (11). The inner diameter of the conveying cylinder (81) gradually decreases along the axis at the front end. The conveying auger (82) is provided in the center of the conveying cylinder (81). One end of the conveying auger (82) extends through the inside of the rubber extruder body (1) into the power drive box (12) and is connected to the conveying motor (83). The flow monitoring sensor (84) is fixedly installed on the upper end of the conveying motor (83).

3. The precision-controlled, leak-proof screw extrusion glue supply device according to claim 1, characterized in that: The extruder body (1) has heat-conducting energy storage chambers (61) attached to the outer surface of the conveying cylinder (81) on all four sides. Several electromagnetic induction heating tubes (62) are arranged inside the heat-conducting energy storage chambers (61).

4. The precision-controlled, leak-proof screw extrusion glue supply device according to claim 1, characterized in that: The anti-overflow and anti-leakage sealing mechanism (5) includes an external gear transmission ring (51), a fixed mounting block (52), a linkage transmission block (53), a transmission adjusting screw (54), a torque monitoring sensor (55), and a torque servo motor (56); an external gear transmission ring (51) is installed in the center of the rear end surface inside the extrusion terminal box (11), and the external gear transmission ring (51) is correspondingly set at the outer end of the discharge through hole. Fixed mounting blocks (52) are respectively set around the rear end surface inside the extrusion terminal box (11). The front surface is provided with a sliding groove, and a linkage transmission block (53) is provided at the front end of the fixed mounting block (52). The central surface of the linkage transmission block (53) at the lower end inside the extrusion terminal box (11) is provided with a threaded through hole. A transmission adjustment screw (54) is threaded inside the threaded through hole. One end of the transmission adjustment screw (54) extends to the outer end of the extrusion terminal box (11) and is fixedly connected to a torque monitoring sensor (55). A torque servo motor (56) is fixedly installed on the upper end of the torque monitoring sensor (55).

5. The precision-controlled, leak-proof screw extrusion glue supply device according to claim 4, characterized in that: Each of the rear end surfaces of the linkage transmission block (53) is provided with a limiting guide slider (57), and the outer ends of the limiting guide slider (57) are slidably sleeved inside the groove. Several inclined racks (58) are arranged on the front end surface of the linkage transmission block (53), and several transmission teeth (59) are arranged on the inner opposite surfaces of the linkage transmission block (53). The transmission teeth (59) are respectively meshed with the outer end of the external tooth transmission ring (51) for transmission.

6. The precision-controlled, leak-proof screw extrusion glue supply device according to claim 4, characterized in that: The anti-overflow and anti-leakage sealing mechanism (5) also includes a guide positioning slider (510), an inclined rack (511), a transmission support plate (512), an arc-shaped material-blocking sealing baffle (513), and a high-elastic sealing rubber pad (514); the front end surface of the extrusion terminal box (11) is provided with guide grooves around its perimeter, and guide positioning sliders (510) are slidably fitted inside the guide grooves. Several inclined racks (511) are respectively provided on the inner surface of the guide positioning sliders (510), and the inclined racks (511) are respectively provided with a certain number of inclined racks (511). 511) and the inclined rack (58) are configured for relative transmission; a transmission support plate (512) is fixedly connected to the front surface of the guide positioning slider (510), and a discharge channel is opened at the front end of the transmission support plate (512) through the extrusion terminal box (11) and extends into the inside of the channel. An arc-shaped material blocking sealing baffle (513) is fixedly installed on the front surface of the transmission support plate (512), and a high-elastic sealing rubber pad (514) is installed on both sides of the surface of the arc-shaped material blocking sealing baffle (513).

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