Precise identification of polyurethane foam coating equipment

Abstract

The application discloses a kind of polyurethane foam coating equipment of accurate identification, it is related to coating equipment technical field, including body, output roller assembly and driven roller assembly, the left part outer end of the body is connected with first cloth winding roller, and the outer end of first cloth winding roller is wound with wiping cloth, the inside both sides of the body are provided with partition cavity, and the outer end of body is provided with motor, the output end of motor is connected with output roller assembly, and the bottom outer side of output roller assembly is provided with first driven gear shaft.The scraper is placed in the floating plate, which can be lifted with the floating plate, which makes the scraper always above the liquid surface. Because the floating plate is located in the coating box, the excess polyurethane foam can be scraped off and returned to the coating box, which can avoid waste of polyurethane foam. The scraper can always be in contact with the coating roller by squeezing the return spring, which can effectively remove the excess polyurethane foam on the coating roller regardless of the liquid level.

Description

Technical Field

[0001] This invention relates to the field of coating equipment technology, specifically to a polyurethane foam coating equipment for precise identification. Background Technology

[0002] Polyurethane foam is the largest product among foamed materials in China in terms of application scope and scale. It mainly plays a role in sealing, buffering, insulation, shock absorption, energy absorption, dustproofing, waterproofing, heat insulation, sound insulation, bonding, and protection. In the production process, polyurethane foam is usually produced by coating machine.

[0003] Common coating machines on the market usually cannot accurately detect the thickness of the polyurethane foam produced after production. If the thickness of the produced polyurethane foam does not meet the standard, it cannot play its due role. If the thickness of the polyurethane foam exceeds the standard, it is difficult to install it properly during use, affecting its normal use.

[0004] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings, and proposed a polyurethane foam coating equipment with precise identification. Summary of the Invention

[0005] The purpose of this invention is to provide a precise polyurethane foam coating device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a polyurethane foam coating device for precise identification, comprising a machine body, an output roller assembly, and a driven roller assembly. A first wrapping roller is connected to the outer left end of the machine body, and a coating cloth is wound around the outer end of the first wrapping roller. The machine body has cavities on both sides inside, and a motor is located at the outer end of the machine body. The output end of the motor is connected to the output roller assembly, and a first driven gear shaft is located on the outer bottom of the output roller assembly. The outer end of the first driven gear shaft is connected to a coating roller. A liquid storage chamber is located on the inner bottom of the machine body, and a heater is located on the outer top of the liquid storage chamber. A coating box is located on the outer top of the heater. The top outer side of the liquid storage chamber is connected to an infusion pipe. A liquid level sensing component is installed on the top right side of the liquid storage chamber. A dryer is installed on the outer right side of the machine body, and a vacuum machine is installed on the outer top of the machine body. A driven roller assembly is installed on the outer top of the output roller assembly. The driven roller assembly includes a second driven gear shaft, a pressing shaft, an arc groove, and a sliding cylinder. The outer end of the second driven gear shaft is connected to the pressing shaft, and an arc groove is opened on the inner side of the pressing shaft. A sliding cylinder is installed on the inner side of the arc groove. An identification component is installed on the outer left side of the driven roller assembly. A lifting plate is installed on the outer bottom of the identification component. A second wrapping roller is installed on the outer left side of the machine body.

[0007] Furthermore, the output roller assembly includes a drive gear shaft, a rotating shaft, a first electric push rod, a pressing arc plate, and a wrapping sleeve. The outer end of the drive gear shaft is connected to the rotating shaft, and the outer end of the rotating shaft is provided with the first electric push rod. The output end of the first electric push rod is connected to the pressing arc plate, and the outer end of the pressing arc plate is sleeved with a wrapping sleeve.

[0008] Furthermore, the active gear shaft and the rotating shaft are integrated, and the first electric actuator is distributed in a ring shape at the outer end of the rotating shaft.

[0009] Furthermore, the active gear shaft drives the first driven gear shaft to rotate, and the first driven gear shaft drives the coating roller to rotate.

[0010] Furthermore, the coating roller is placed inside the coating box, and the coating box is connected to the liquid storage chamber through a liquid infusion pipe.

[0011] Furthermore, the liquid level sensing component includes a fixed base, a U-shaped plate, a first tension sensing rope, a first pressure sensor, a float plate, a return spring, and a scraper. The U-shaped plate is connected to the inner side of the fixed base, and the first tension sensing rope is connected between the U-shaped plate and the fixed base. The first pressure sensor is provided on both sides of the interior of the fixed base. The float plate is connected to the end of the U-shaped plate, and a return spring is provided on the inner side of the float plate. The scraper is connected to the outer end of the return spring.

[0012] Furthermore, the fixed seat is sleeved with the U-shaped plate, and the U-shaped plate is fixedly connected to the floating plate.

[0013] Furthermore, the reset spring is elastically connected to the scraper, and the scraper is in contact with the outer surface of the coating roller.

[0014] Furthermore, the identification component includes a connecting plate, a second electric push rod, an identification frame, a pressure spring, a displacement plate, a second pressure sensor, a wheel seat, a contact wheel, and a second tension sensing rope. The bottom end of the connecting plate is connected to the second electric push rod, and an identification frame is provided on the outer side of the bottom of the second electric push rod. A pressure spring is installed inside the identification frame, and the outer end of the pressure spring is connected to the displacement plate. The outer side of the bottom of the displacement plate is provided with the second pressure sensor. A wheel seat is provided at the middle of the bottom of the displacement plate, and a contact wheel is connected to the inner side of the wheel seat. A second tension sensing rope is provided between the displacement plate and the identification frame.

[0015] Furthermore, the wheel seats and the contact wheels are arranged in an array inside the recognition frame, and the wheel seats are fixedly connected to the displacement plate.

[0016] This invention provides a precise identification polyurethane foam coating device, which has the following beneficial effects:

[0017] 1. In this invention, when excessive amounts of molten polyurethane foam are consumed, the liquid level in the storage chamber decreases, and the float descends along with the liquid level. During this descent, the float, in conjunction with the U-shaped plate, moves downwards within the fixed base. When the float descends to a point where the polyurethane foam is about to be submerged from the coating roller, the U-shaped plate engages with the first pressure sensor. Upon sensing the pressure value, the device activates the infusion pipe, allowing the storage chamber to replenish molten polyurethane foam to the coating box. This effectively prevents the coating roller from failing to effectively apply polyurethane foam to the coating cloth due to a low liquid level in the coating box. Simultaneously, as the storage chamber replenishes the coating box, the float rises with the liquid level. During this rise, the U-shaped plate pulls the tension sensing rope taut, and the tension sensing... The tension point of the tension rope is the highest liquid level in the coating box. When the tension sensing rope senses the tension value, the equipment can stop replenishing the molten polyurethane foam to the coating box. This avoids the polyurethane foam from being moved out and wasted. In addition, before the coating roller applies polyurethane foam to the coating cloth, the coating roller will first contact the scraper. The scraper can scrape off excess polyurethane foam adhering to the coating roller, preventing the coating roller from applying too much polyurethane foam to the coating cloth. Because the scraper is placed inside the float plate, it can rise and fall with the float plate, which allows the scraper to always be above the liquid surface. Since the float plate is located inside the coating box, the excess polyurethane foam scraped by the scraper can flow back into the coating box, which can avoid the waste of polyurethane foam. The scraper can always maintain contact with the coating roller by squeezing the return spring, which allows the scraper to effectively scrape off excess polyurethane foam on the coating roller regardless of the liquid level.

[0018] 2. This invention uses a pressing shaft to press polyurethane foam, which can level the polyurethane foam and improve its quality. During the rotation of the pressing shaft, the sliding cylinder inside rolls within an arc-shaped groove. This rolling motion generates downward potential energy, which, when used to level the polyurethane foam, increases the pressing force, thus improving the leveling effect. Furthermore, when the first electric actuator is in a vertical position, its operation can drive the pressing arc plate upwards. The sheath is made of flexible rubber. During the upward movement of the pressing arc plate, the wrapping sleeve undergoes corresponding deformation. The pushing force of the upward movement of the pressing arc plate, in conjunction with the pressing shaft, presses the polyurethane foam, thereby further improving the pressing effect of the polyurethane foam. In addition, during the use of the equipment, by rotating all the first electric push rods at the outer end of the rotating shaft, the pressing arc plate can be expanded or contracted, which allows the outer diameter of the wrapping sleeve to be changed. By changing the diameter of the wrapping sleeve, the distance between the coating roller, the pressing shaft, and the wrapping sleeve can be changed, thus enabling the equipment to produce polyurethane foam of different thicknesses. This improves the flexibility of the equipment.

[0019] 3. In this invention, if there is a depression on the surface of the polyurethane foam, the bonding wheel will remain in contact with the polyurethane foam due to the downward movement of the displacement plate. During the downward movement of the displacement plate, it can pull the pressure spring and squeeze the second pressure sensor. When the second pressure sensor senses the pressure value, the equipment can determine that there is a depression on the surface of the polyurethane foam. When there is a protrusion on the surface of the polyurethane foam, the protrusion can push the bonding wheel upward. When the bonding wheel moves upward, it will drive the displacement plate upward as well. This will cause the second tension sensing rope to change from a taut state to a slack state. When the equipment cannot sense the tension value of the second tension sensing rope, that is, there is a protrusion on the surface of the polyurethane foam. Through this design, the equipment can accurately identify the current production quality of the polyurethane foam, thereby eliminating unqualified products in the production process. In addition, the operation of the second electric push rod can drive the identification component to adjust its height. This allows the equipment to change the sensing threshold of the identification component and adjust the height of the bonding wheel according to the current thickness of the polyurethane foam being produced. This can greatly improve the flexibility of the equipment. Attached Figure Description

[0020] Figure 1 This is a frontal view of the overall structure of a polyurethane foam coating device for precise identification according to the present invention.

[0021] Figure 2 This is a front view schematic diagram of the output roller assembly of a polyurethane foam coating equipment for precise identification according to the present invention.

[0022] Figure 3 This is a side cross-sectional view of the output roller assembly of a polyurethane foam coating equipment for precise identification according to the present invention.

[0023] Figure 4 This invention relates to a precise identification polyurethane foam coating device. Figure 1 Enlarged structural diagram at point A in the middle;

[0024] Figure 5 This is a schematic diagram of the liquid height sensing component structure of a polyurethane foam coating equipment for precise identification according to the present invention.

[0025] Figure 6 This is a longitudinal section diagram of the driven roller assembly of a polyurethane foam coating equipment for precise identification according to the present invention.

[0026] Figure 7 This is a schematic diagram of the identification component structure of a polyurethane foam coating device for precise identification according to the present invention.

[0027] Figure 8 This is a front view schematic diagram of the identification component of a polyurethane foam coating device for precise identification according to the present invention.

[0028] In the diagram: 1. Machine body; 2. First wrapping roller; 3. Coating cloth; 4. Chamber; 5. Motor; 6. Output roller assembly; 601. Drive gear shaft; 602. Rotating shaft; 603. First electric push rod; 604. Pressing arc plate; 605. Wrapping sleeve; 7. First driven gear shaft; 8. Coating roller; 9. Liquid storage chamber; 10. Heater; 11. Coating box; 12. Infusion tube; 13. Liquid level sensing assembly; 1301. Fixing base; 1302. U-shaped plate; 1303. First tension sensing rope; 1304. First pressure sensor; 1305. Float plate; 130 6. Return spring; 1307. Scraper; 14. Dryer; 15. Vacuum machine; 16. Driven roller assembly; 1601. Second driven gear shaft; 1602. Pressing shaft; 1603. Arc groove; 1604. Sliding cylinder; 17. Identification assembly; 1701. Connecting plate; 1702. Second electric push rod; 1703. Identification frame; 1704. Pressure spring; 1705. Displacement plate; 1706. Second pressure sensor; 1707. Wheel seat; 1708. Applying wheel; 1709. Second tension sensing rope; 18. Lifting plate; 19. Second wrapping roller. Detailed Implementation

[0029] Please see Figures 1 to 8 This invention provides a technical solution: a polyurethane foam coating device for precise identification, comprising a machine body 1, an output roller assembly 6, and a driven roller assembly 16. A first wrapping roller 2 is connected to the outer left end of the machine body 1, and a coating cloth 3 is wound around the outer end of the first wrapping roller 2. Partition cavities 4 are provided on both sides inside the machine body 1, and a motor 5 is provided at the outer end of the machine body 1. The output end of the motor 5 is connected to the output roller assembly 6, and a first driven gear shaft 7 is provided on the outer bottom of the output roller assembly 6. A coating roller 8 is connected to the outer end of the first driven gear shaft 7. A liquid storage chamber 9 is arranged on the inner bottom of the machine body 1, and a heater 10 is arranged on the outer top of the liquid storage chamber 9. A coating box 11 is arranged on the outer top of the heater 10. A liquid delivery pipe 12 is connected to the outer top of the liquid storage chamber 9. A liquid height sensing component 13 is provided on the top right side of cavity 9. A dryer 14 is installed on the outer right side of the machine body 1, and a vacuum machine 15 is installed on the outer top of the machine body 1. A driven roller assembly 16 is installed on the outer top of the output roller assembly 6. The driven roller assembly 16 includes a second driven gear shaft 1601, a pressing shaft 1602, an arc groove 1603, and a sliding cylinder 1604. The outer end of the second driven gear shaft 1601 is connected to the pressing shaft 1602, and an arc groove 1603 is opened on the inner side of the pressing shaft 1602. A sliding cylinder 1604 is provided on the inner side of the arc groove 1603. An identification component 17 is provided on the outer left side of the driven roller assembly 16. A lifting plate 18 is installed on the outer bottom of the identification component 17. A second wrapping roller 19 is provided on the outer left side of the machine body 1.

[0030] Please see Figures 1 to 8The output roller assembly 6 includes a drive gear shaft 601, a rotating shaft 602, a first electric actuator 603, a pressing arc plate 604, and a wrapping sleeve 605. The outer end of the drive gear shaft 601 is connected to the rotating shaft 602, and the outer end of the rotating shaft 602 is provided with the first electric actuator 603. The output end of the first electric actuator 603 is connected to the pressing arc plate 604, and the outer end of the pressing arc plate 604 is sleeved with the wrapping sleeve 605. The drive gear shaft 601 and the rotating shaft 602 are integrated, and the first electric actuator 603 is distributed in a ring shape at the outer end of the rotating shaft 602. The drive gear shaft 601 drives the first driven gear shaft 7 to rotate, and the first driven gear shaft 7 drives the coating roller 8 to rotate. The coating roller 8 is placed on the coating roller. Inside the coating box 11, which is connected to the storage chamber 9 via an infusion pipe 12, the liquid level sensing component 13 includes a fixed base 1301, a U-shaped plate 1302, a first tension sensing rope 1303, a first pressure sensor 1304, a float 1305, a return spring 1306, and a scraper 1307. The U-shaped plate 1302 is connected to the inner side of the fixed base 1301, and the first tension sensing rope 1303 connects the U-shaped plate 1302 and the fixed base 1301. The first pressure sensor 1304 is located on both sides of the interior of the fixed base 1301. The float 1305 is connected to the end of the U-shaped plate 1302, and a return spring 1306 is located on the inner side of the float 1305. 306, the outer end of the return spring 1306 is connected to a scraper 1307, the fixed seat 1301 is sleeved with the U-shaped plate 1302, and the U-shaped plate 1302 is fixedly connected to the floating plate 1305. The return spring 1306 is elastically connected to the scraper 1307, and the scraper 1307 is in contact with the outer surface of the coating roller 8. The identification component 17 includes a connecting plate 1701, a second electric push rod 1702, an identification frame 1703, a pressure spring 1704, a displacement plate 1705, a second pressure sensor 1706, a wheel seat 1707, a bonding wheel 1708, and a second tension sensing rope 1709. The bottom end of the connecting plate 1701 is connected to the second electric push rod 1702, and the second... An identification frame 1703 is provided on the outer bottom of the electric actuator 1702. A pressure spring 1704 is installed inside the identification frame 1703, and a displacement plate 1705 is connected to the outer end of the pressure spring 1704. A second pressure sensor 1706 is provided on the outer bottom of the displacement plate 1705. A wheel seat 1707 is provided at the middle bottom of the displacement plate 1705, and a contact wheel 1708 is connected to the inner side of the wheel seat 1707. A second tension sensing rope 1709 is provided between the displacement plate 1705 and the identification frame 1703. The wheel seat 1707 and the contact wheel 1708 are arranged in an array inside the identification frame 1703, and the wheel seat 1707 is fixedly connected to the displacement plate 1705.

[0031] The specific operation is as follows: The operator passes the coating cloth 3 wound on the first winding roller 2 through the machine body 1 and the partition 4, so that the coating cloth 3 is placed inside the equipment. The operator then winds the coating cloth 3 from the bottom end to the top end of the wrapping sleeve 605, and passes the coating cloth 3 through the partition 4 to the second winding roller 19, thus completing the application of the coating cloth 3. After the coating cloth 3 is applied, the operator turns off the equipment and operates the heater 10 to heat the polyurethane foam in the liquid storage chamber 9 to a molten state. After the polyurethane foam is heated to a molten state, it is fed into the coating box 11 through the infusion pipe 12. At this time, the vacuum machine 15 operates to create a vacuum inside the machine body 1. By creating a vacuum inside the machine body 1, the machine body can be... 1. Dust removal from the interior reduces the probability of impurities remaining inside the polyurethane foam after coating. Simultaneously, the vacuum defoams the molten polyurethane foam, effectively improving the coating quality. After defoaming, the drive motor at the outer end of the second winding roller 19 operates, driving the coating cloth 3 to wind up. During winding, the motor 5 drives the drive gear shaft 601 and the rotating shaft 602 to rotate. The rotation of the rotating shaft 602 assists the wrapping sleeve 605 in the winding displacement of the coating cloth 3. The rotation of the drive gear shaft 601 drives the first driven gear shaft 7 to rotate, which in turn drives the coating roller 8 to rotate. Roller 8 is placed inside the liquid storage chamber 9, allowing the coating roller 8 to carry out the molten polyurethane foam from the liquid storage chamber 9 and coat it onto the surface of the coating cloth 3. Float 1305 floats on the surface of the molten polyurethane foam in the liquid storage chamber 9. When too much molten polyurethane foam is consumed, the liquid level in the liquid storage chamber 9 will decrease, and float 1305 will descend along with the liquid level. During its descent, float 1305 will move in conjunction with U-shaped plate 1302, which will move downwards inside the fixed base 1301. When float 1305 descends to a point where the polyurethane foam is about to no longer be submerged in the coating roller 8, U-shaped plate 1302 will come into contact with the first pressure sensor 1304. When the first pressure sensor 1304 senses the pressure value, the device can drive the infusion tube 12 to open. This allows the storage chamber 9 to replenish molten polyurethane foam into the coating box 11. This effectively prevents the coating roller 8 from failing to effectively apply the polyurethane foam onto the coating cloth 3 due to a low liquid level in the coating box 11. During the replenishment process, the float 1305 rises along with the liquid level. As the float 1305 rises in conjunction with the U-shaped plate 1302, the U-shaped plate 1302 pulls the first tension sensing rope 1303 to tension. The tension point of the first tension sensing rope 1303 is the highest liquid level point in the coating box 11. When the first tension sensing rope 1303 senses the tension value, the equipment stops replenishing molten polyurethane foam into the coating box 11, preventing the polyurethane foam from being removed and wasted.Furthermore, before applying polyurethane foam to the coating cloth 3, the coating roller 8 first contacts the scraper 1307. The scraper 1307 can scrape off excess polyurethane foam adhering to the coating roller 8, preventing the coating roller 8 from applying too much polyurethane foam to the coating cloth 3. Because the scraper 1307 is located inside the float 1305, it can rise and fall with the float 1305, which allows the scraper 1307 to always be above the liquid surface. Since the float 1305 is located inside the coating box 11, the excess polyurethane foam scraped by the scraper 1307 can flow back into the coating box 11, which can avoid the waste of polyurethane foam. The scraper 1307 can always maintain contact with the coating roller 8 by squeezing the return spring 1306, which makes the scraper 1307 always in contact with the coating roller 8, regardless of its position. The high concentration of the seed liquid can effectively scrape off excess polyurethane foam from the coating roller 8. After the polyurethane foam is coated on the surface of the coating cloth 3, the coating cloth 3 with polyurethane foam can move to the same height as the dryer 14 with the traction of the second wrapping roller 19 and the rotation of the wrapping sleeve 605. The dryer 14 can effectively dry the molten polyurethane foam. After the polyurethane foam on the coating cloth 3 is dried, the coating cloth 3 can move to the position between the wrapping sleeve 605 and the pressing shaft 1602. During the rotation of the driving gear shaft 601, it can drive the pressing shaft 1602 to rotate through the second driven gear shaft 1601. At this time, the polyurethane foam is in a state of incomplete solidification. The pressing shaft 1602 can press the polyurethane foam to achieve the desired effect. The polyurethane foam is leveled, which improves its quality. During the rotation of the pressing shaft 1602, the sliding cylinder 1604 inside it rolls within the arc-shaped groove 1603. This rolling motion generates downward potential energy, which the pressing shaft 1602 uses to increase the pressing force on the polyurethane foam during leveling, thus improving the leveling effect. Furthermore, when the first electric actuator 603 is in a vertical position, its operation drives the pressing arc plate 604 upward. The wrapping sleeve 605, made of flexible rubber, deforms accordingly during the upward movement of the pressing arc plate 604. The upward pushing force of 604 can cooperate with the pressing shaft 1602 to press the polyurethane foam, which further improves the pressing effect of the polyurethane foam. In addition, during the use of the equipment, by rotating all the first electric push rods 603 at the outer end of the rotating shaft 602, the pressing arc plate 604 can be expanded or contracted, which allows the outer diameter of the wrapping sleeve 605 to be changed. By changing the diameter of the wrapping sleeve 605, the distance between the coating roller 8, the pressing shaft 1602 and the wrapping sleeve 605 can be changed, thereby enabling the equipment to produce polyurethane foam of different thicknesses. This improves the flexibility of the equipment. After the polyurethane foam on the coating cloth 3 is completely solidified, it can contact the bonding wheel 1708. If there are depressions on the surface of the polyurethane foam,The bonding roller 1708 will remain in contact with the polyurethane foam due to the downward movement of the displacement plate 1705, while the displacement plate 1705... During the downward movement, the pressure spring 1704 is pulled and squeezed against the second pressure sensor 1706. When the second pressure sensor 1706 senses the pressure value, the equipment can determine that there is a depression on the surface of the polyurethane foam. When there is a bulge on the surface of the polyurethane foam, the bulge can push the bonding wheel 1708 upward. When the bonding wheel 1708 moves upward, it will drive the displacement plate 1705 upward as well. This causes the second tension sensing rope 1709 to change from a taut state to a slack state. When the equipment cannot sense the tension value of the second tension sensing rope 1709, that is, there is a bulge on the surface of the polyurethane foam. Through this design, the equipment can accurately identify the current production quality of the polyurethane foam, thereby eliminating unqualified products in the production process. In addition, the operation of the second electric push rod 1702 can drive the identification component 17 to be adjusted in height. This allows the equipment to change the sensing threshold of the identification component 17, and at the same time, the height of the bonding wheel 1708 can be adjusted according to the current thickness of the polyurethane foam being produced. This greatly improves the flexibility of the equipment.

[0032] In summary, this precise polyurethane foam coating equipment operates as follows: First, the operator passes the coating cloth 3 wound on the first winding roller 2 through the machine body 1 and the partition 4, placing the coating cloth 3 inside the equipment. Then, the operator winds the coating cloth 3 from the bottom to the top of the wrapping sleeve 605, and passes it through the partition 4 to the second winding roller 19, thus completing the coating cloth 3 application. After the coating cloth 3 is applied, the operator shuts down the equipment and operates the heater 10 to heat the polyurethane foam in the storage chamber 9. The ester foam is heated to a molten state. After the polyurethane foam is heated to a molten state, it is fed into the coating box 11 through the infusion pipe 12. At this time, the vacuum machine 15 works to create a vacuum inside the machine body 1. By creating a vacuum inside the machine body 1, dust inside the machine body 1 can be removed, reducing the probability of impurities inside the polyurethane foam after coating. At the same time, the vacuum can defoam the molten polyurethane foam. By defoaming the polyurethane foam, the quality of polyurethane foam coating can be effectively improved.

[0033] After the polyurethane foam is defoamed, the drive motor at the outer end of the second winding roller 19 works, which can drive the coating cloth 3 to be wound up. During the winding process, the coating cloth 3 works through the motor 5, which can drive the active gear shaft 601 and the rotating shaft 602 to rotate. During the rotation of the rotating shaft 602, the wrapping sleeve 605 can assist the winding displacement of the coating cloth 3. The rotation of the active gear shaft 601 can drive the first driven gear shaft 7 to rotate. During the rotation of the first driven gear shaft 7, it can drive the coating roller 8 to rotate. Since the coating roller 8 is placed inside the liquid storage cavity 9, the coating roller 8 can carry out the molten polyurethane foam in the liquid storage cavity 9 and apply it to the surface of the coating cloth 3.

[0034] Then, when too much molten polyurethane foam is consumed, the liquid level in the storage chamber 9 will decrease, and the float 1305 will descend along with the liquid level in the storage chamber 9. During the descent, the float 1305 will move down in conjunction with the U-shaped plate 1302 inside the fixed base 1301. When the float 1305 descends to the point where the polyurethane foam is about to be no longer submerged in the coating roller 8, the U-shaped plate 1302 will come into contact with the first pressure sensor 1304. When the first pressure sensor 1304 senses the pressure value, the device can drive the infusion pipe 12 to open, which allows the storage chamber 9 to replenish the coating box 11 with molten polyurethane foam. This effectively avoids the situation where the liquid level in the coating box 11 is too low, and the coating roller 8 cannot effectively coat the polyurethane foam onto the coating cloth 3. During the process of replenishing molten polyurethane foam in the coating box 11, the float 1305 will rise along with the liquid level. As the float 1305 rises in conjunction with the U-shaped plate 1302, the U-shaped plate 1302 can pull the first tension sensing rope 1303 to tighten. The tightening point of the first tension sensing rope 1303 is the highest liquid level point in the coating box 11. When the first tension sensing rope 1303 senses the tension value, the equipment can stop replenishing molten polyurethane foam to the coating box 11. This can prevent the polyurethane foam from being moved out and wasted. In addition, before the coating roller 8 applies polyurethane foam to the coating cloth 3, the coating roller 8 will first contact the scraper 1307. The scraper 1307 can scrape off the excess polyurethane foam adhering to the coating roller 8 to prevent the coating roller 8 from applying too much polyurethane foam to the coating cloth 3.

[0035] Subsequently, the coating cloth 3, coated with polyurethane foam, moves to the same height as the dryer 14 under the traction of the second wrapping roller 19 and the rotation of the wrapping sleeve 605. The dryer 14 effectively dries the molten polyurethane foam. After the polyurethane foam on the coating cloth 3 is dried, the coating cloth 3 moves to the position between the wrapping sleeve 605 and the pressing shaft 1602. During the rotation of the driving gear shaft 601, the second driven gear shaft 1601 drives the pressing shaft 1602 to rotate. At this time, the polyurethane foam is in a partially solidified state. The pressing shaft 1602 flattens the polyurethane foam, improving its quality. During the rotation of the pressing shaft 1602, the internal sliding... The moving cylinder 1604 can roll inside the arc groove 1603. When the sliding cylinder 1604 rolls in the arc groove 1603, it can generate downward potential energy. When the pressing shaft 1602 is leveling the polyurethane foam, it can increase the pressing force on the polyurethane foam through this potential energy, which can improve the leveling effect of the polyurethane foam. In addition, when the first electric push rod 603 is in a vertical state, the working of the first electric push rod 603 can drive the pressing arc plate 604 to move upward. The wrapping sleeve 605 is made of flexible rubber. During the upward movement of the pressing arc plate 604, the wrapping sleeve 605 can generate corresponding deformation. The pushing force of the pressing arc plate 604 moving upward can cooperate with the pressing shaft 1602 to press the polyurethane foam, which can further improve the pressing effect of the polyurethane foam.

[0036] Then, during the use of the equipment, by rotating the outer end of the first electric push rod 603, the pressing arc plate 604 can be expanded or contracted, which allows the outer diameter of the wrapping sleeve 605 to be changed. By changing the diameter of the wrapping sleeve 605, the distance between the coating roller 8, the pressing shaft 1602 and the wrapping sleeve 605 can be changed, thereby enabling the equipment to produce polyurethane foam of different thicknesses, which improves the flexibility of the equipment.

[0037] After the polyurethane foam on the final coating cloth 3 has completely solidified, it can contact the bonding wheel 1708. If there are depressions on the surface of the polyurethane foam, the bonding wheel 1708 will remain in contact with the polyurethane foam due to the downward movement of the displacement plate 1705. During the downward movement, the pressure spring 1704 is pulled and squeezed against the second pressure sensor 1706. When the second pressure sensor 1706 senses the pressure value, the equipment can determine that there is a depression on the surface of the polyurethane foam. When there is a bulge on the surface of the polyurethane foam, the bulge can push the bonding wheel 1708 to move upward. When the bonding wheel 1708 moves upward, it will drive the displacement plate 1705 to move upward as well. This will cause the second tension sensing rope 1709 to change from a taut state to a slack state. When the equipment cannot sense the tension value of the second tension sensing rope 1709, that is, there is a bulge on the surface of the polyurethane foam. Through this design, the equipment can accurately identify the current production quality of the polyurethane foam, thereby eliminating unqualified products in the production process. In addition, the operation of the second electric push rod 1702 can drive the identification component 17 to be adjusted in height. This allows the equipment to change the sensing threshold of the identification component 17. At the same time, the height of the bonding wheel 1708 can be adjusted according to the current production thickness of the polyurethane foam, which can greatly improve the flexibility of the equipment.

[0038] The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the invention to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical application of the invention, and to enable those skilled in the art to understand the invention and to design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A precision-identified polyurethane foam coating apparatus, characterized by, The utility model provides a kind of cloth painting machine, including body (1), output roller assembly (6) and driven roller assembly (16), the left part outer end of the body (1) is connected with first cloth winding roller (2), and the outer end of first cloth winding roller (2) is wound with painting cloth (3), the inside both sides of the body (1) are provided with compartment (4), and the outer end of body (1) is provided with motor (5), the output end of motor (5) is connected with output roller assembly (6), and the bottom outside of output roller assembly (6) is provided with first driven gear shaft (7), and the outer end of first driven gear shaft (7) is connected with cloth roller (8), the bottom inside of the body (1) is placed with liquid storage cavity (9), and the top outside of liquid storage cavity (9) is placed with heater (10), the top outside of heater (10) is placed with painting box (11), the top outside of liquid storage cavity (9) is communicated with liquid delivery pipe (12), the right side top of liquid storage cavity (9) is provided with liquid height sensing component (13), the right part outside of the body (1) is placed with dryer (14), and the top outside of body (1) is placed with vacuum machine (15), the top outside of output roller assembly (6) is placed with driven roller assembly (16), the driven roller assembly (16) includes second driven gear shaft (1601), pressing shaft (1602), arc slot (1603) and sliding cylinder (1604), the outer end of second driven gear shaft (1601) is connected with pressing shaft (1602), and the inside of pressing shaft (1602) is provided with arc slot (1603), the inside of arc slot (1603) is provided with sliding cylinder (1604), the left part outer end of driven roller assembly (16) is provided with identification component (17), the bottom outside of identification component (17) is placed with lifting plate (18), the left side outside of the body (1) is provided with second cloth winding roller (19), the output roller assembly (6) includes driving gear shaft (601), rotating shaft (602), first electric push rod (603), pressing arc plate (604) and wrapping sleeve (605), the outer end of driving gear shaft (601) is connected with rotating shaft (602), and the outer end of rotating shaft (602) is provided with first electric push rod (603), the output end of first electric push rod (603) is connected with pressing arc plate (604), the outer end of pressing arc plate (604) is sleeved with wrapping sleeve (605), driving gear shaft (601) is integrated with rotating shaft (602), and first electric push rod (603) is annularly distributed on the outer end of rotating shaft (602), driving gear shaft (601) drives first driven gear shaft (7) to rotate, and first driven gear shaft (7) drives cloth roller (8) to rotate, liquid height sensing component (13) includes fixed seat (1301), U-shaped plate (1302), first tension sensing rope (1303), first pressure sensor (1304), floating plate (1305), return spring (1306) and scraper (1307), the inside of fixed seat (1301) is connected with U-shaped plate (1302),And the U-shaped plate (1302) is connected with the fixed base (1301) and has the first tension sensing rope (1303), the inside of the fixed base (1301) is provided with the first pressure sensor (1304) on both sides, the end of the U-shaped plate (1302) is connected with the floating plate (1305), the inside of the floating plate (1305) is provided with the reset spring (1306), the outer end of the reset spring (1306) is connected with the scraper (1307), the fixed base (1301) is connected with the U-shaped plate (1302) and is connected in a sleeve, and the U-shaped plate (1302) is fixedly connected with the floating plate (1305), the reset spring (1306) is elastically connected with the scraper (1307), and the scraper (1307) is attached to the outer surface of the coating roller (8).

2. The precise identification of polyurethane foam coating device according to claim 1, characterized in that, The coating roller (8) is arranged inside a coating box (11), and the coating box (11) is communicated with the liquid storage cavity (9) through a liquid delivery pipe (12).

3. The precise identification of polyurethane foam coating device according to claim 1, characterized in that, The identification assembly (17) comprises a connecting plate (1701), a second electric push rod (1702), an identification frame (1703), a pressure spring (1704), a displacement plate (1705), a second pressure sensor (1706), a wheel seat (1707), a matching wheel (1708) and a second tension sensing rope (1709), the bottom end of the connecting plate (1701) is connected with the second electric push rod (1702), the bottom outer side of the second electric push rod (1702) is provided with the identification frame (1703), the inside of the identification frame (1703) is arranged with the pressure spring (1704), the outer end of the pressure spring (1704) is connected with the displacement plate (1705), the bottom outer side of the displacement plate (1705) is provided with the second pressure sensor (1706), the bottom middle end of the displacement plate (1705) is provided with the wheel seat (1707), the inner side of the wheel seat (1707) is connected with the matching wheel (1708), and the second tension sensing rope (1709) is arranged between the displacement plate (1705) and the identification frame (1703).

4. The precise identification of polyurethane foam coating device according to claim 3, characterized in that, The wheel seat (1707) and the matching wheel (1708) are arranged in an array in the identification frame (1703), and the wheel seat (1707) is fixedly connected with the displacement plate (1705).

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