Cone yarn contact pressure control system and monitoring pressure reducing valve

Abstract

The invention relates to the technical field of cone yarn pressure control equipment, in particular to a cone yarn contact pressure control system and a monitoring pressure reducing valve. The cone yarn contact pressure control system comprises a monitoring frame assembly, a limiting assembly, two spooling assemblies and two monitoring pressure reducing valves. The device can accurately control the pressing pressure of the pressing roller, guarantees stable adjustment of yarn tension, avoids over-tightness or over-looseness, can timely relieve pressure and automatically stop when the pressure output by a cone yarn contact pressure control system fluctuates, avoids fault expansion, achieves digital dynamic adjustment of the pressure alarm range, and improves the safety of the device. And the system is interconnected and intercommunicated with a big data platform, so that the parking position can be checked in time, and accurate control, real-time monitoring and effective shutdown are realized.

Description

Technical Field

[0001] The present invention relates to the technical field of cheese contact pressure control equipment, and in particular provides a cheese contact pressure control system and a monitoring pressure reducing valve. Background Art

[0002] The cheese contact pressure control system is a key component in textile winding equipment, mainly used to control the pressure applied to the raw yarn during the winding process of the cheese by the pressing roller. This system ensures uniform yarn tension and moderate density during winding by adjusting the contact pressure between the pressing roller and the cheese bobbin, thereby guaranteeing the forming quality and subsequent processing performance of the cheese. A reasonable contact pressure can not only prevent yarn breakage and looseness but also effectively avoid cheese deformation, improving production efficiency and product quality. Traditional cheese contact pressure control systems rely mostly on the rigidity of mechanical structures and simple pneumatic regulation for pressure adjustment, lacking real-time and precise control of pressure changes, resulting in fluctuations in the applied pressure and making it difficult to meet the requirements of different yarn specifications and processes. Moreover, when the yarn is being wound, the system pressure is prone to sudden increases or fluctuations, which can easily cause damage to the pressure reducing valve. As a result, it is necessary to manually check the pressure of the pressure valve for each spindle every day. Additionally, sudden damage occurs frequently without an alarm, leading to almost out-of-control quality of the products on this spindle and a relatively high defective rate of cheese forming, increasing unnecessary repetitive labor. Summary of the Invention

[0003] Based on this, it is necessary to provide a cheese contact pressure control system and a monitoring pressure reducing valve to solve at least one technical problem in the background art.

[0004] A monitoring pressure reducing valve includes a valve body assembly, a pressure regulating assembly, a valve core assembly, a lower diaphragm assembly, and an upper diaphragm assembly. The valve body assembly includes a lower valve body, an intermediate valve body, and an upper valve body. The lower valve body is hollow inside and provided with a gas guiding cavity. The bottom of the lower valve body is recessed with a valve core installation cavity. The top surface of the valve core installation cavity is recessed with a gas guiding control hole, which is communicated with the valve core installation cavity. One end of the valve core installation cavity is recessed with an air inlet hole, and the other end of the gas guiding cavity is recessed with an air outlet hole. The middle part of the gas guiding cavity is convexly provided with a plurality of intermediate limiting blocks at intervals along the circumferential direction. The inner end of the inner wall of the air inlet hole is recessed with a first inclined hole. The bottom of the intermediate valve body is installed on the top of the lower valve body. The inside of the intermediate valve body is hollow to form an intermediate cavity, which is communicated with the gas guiding cavity. The bottom of the upper valve body is installed on the top of the intermediate cavity. The inside of the upper valve body is hollow to form an adjustment cavity. The bottom of the valve core assembly is installed on the top of the upper valve body. The lower diaphragm assembly is installed in the intermediate cavity, and the upper diaphragm assembly is installed in the adjustment cavity.

[0005] As a further improvement of the present invention, one end of the bottom surface of the intermediate cavity is recessed with an intermediate communication hole, the intermediate communication hole is communicated with the first inclined hole, the top of the inner wall of the intermediate cavity is recessed with a first installation annular groove, the bottom of the inner wall of the intermediate cavity is recessed with a second installation annular groove, and the middle of the inner wall of the intermediate cavity is recessed with a pressure relief through hole; one end of the bottom surface of the adjustment cavity is recessed with a second inclined hole, the second inclined hole is communicated with the intermediate communication hole, the middle of the bottom surface of the adjustment cavity is recessed with an adjustment installation hole, the middle of the bottom surface of the adjustment installation hole is recessed with a first adjustment sliding hole, the middle of the bottom surface of the first adjustment sliding hole is recessed with a second adjustment sliding hole, and the second adjustment sliding hole is communicated with the intermediate cavity.

[0006] As a further improvement of the present invention, the pressure regulating assembly includes a pressure regulating housing, a pressure regulating cylinder, an adjusting slider and a pressure regulating spring. The bottom of the pressure regulating housing is installed on the top of the upper valve body. The interior of the pressure regulating housing is hollow to form a pressure regulating installation cavity. The pressure regulating installation cavity is communicated with the adjustment cavity. The middle of the top surface of the pressure regulating installation cavity is recessed with a cylinder pressure regulating hole. The bottom of the pressure regulating cylinder is installed on the top of the pressure regulating housing. The outer wall of the adjusting slider is slidably installed on the top of the pressure regulating installation cavity. The middle of the adjusting slider is connected to the output shaft of the pressure regulating cylinder. The top of the pressure regulating spring is connected to the adjusting slider.

[0007] As a further improvement of the present invention, the upper diaphragm assembly includes a diaphragm cover, an upper diaphragm, an intermediate sliding piece, an upper bottom diaphragm, an elastic triangular frame, a floating ball, a supporting seat and a pressing spring. The top of the diaphragm cover is installed at the bottom of the pressure regulating spring. The top of the upper diaphragm is installed at the bottom of the diaphragm cover, and the outer wall of the upper diaphragm is connected to the bottom of the inner wall of the pressure regulating installation cavity. The outer wall of the intermediate sliding piece is slidably installed on the top of the outer wall of the adjustment cavity. The top surface of the intermediate sliding piece is recessed with an outflow impact hole, and the outflow impact hole is arranged opposite to the top of the second inclined hole. The top of the upper bottom diaphragm is installed at the bottom of the intermediate sliding piece. The elastic triangular frame is installed at the bottom of the adjustment installation hole. The floating ball is installed in the middle of the elastic triangular frame. The outer wall of the supporting seat is slidably installed in the second adjustment sliding hole. The top of the supporting seat abuts against the bottom of the floating ball. The top of the pressing spring is installed at the bottom of the supporting seat.

[0008] As a further improvement of the present invention, the lower diaphragm assembly includes a lower top diaphragm, an intermediate sliding cylinder, a lower bottom diaphragm and a lower pressure relief element. The lower top diaphragm is installed in the first installation annular groove. The top of the intermediate sliding cylinder is installed in the middle of the bottom surface of the lower top diaphragm. The lower bottom diaphragm is installed in the second installation annular groove. The middle of the bottom surface of the lower bottom diaphragm is recessed with a first communication installation hole. The bottom of the intermediate sliding cylinder is installed in the middle of the bottom surface of the lower bottom diaphragm. The outer wall of the intermediate sliding cylinder is slidably installed on the inner wall of the intermediate cavity. A sealing plate is arranged at the top of the inner wall of the intermediate sliding cylinder. The middle of the inner wall of the intermediate sliding cylinder is recessed with a second pressure relief hole, and the second pressure relief hole is communicated with the pressure relief through hole. A lower pressure relief installation ring protrudes from the bottom of the inner wall of the intermediate sliding cylinder. The lower pressure relief element is installed on the inner wall of the lower pressure relief installation ring.

[0009] As a further improvement of the present invention, the lower pressure relief element includes a lower pressure relief sleeve and a first conductive plate. The top of the outer wall of the lower pressure relief sleeve is connected to the inner wall of the lower pressure relief mounting ring, the middle of the outer wall of the lower pressure relief sleeve is connected to the middle of the inner wall of the first communication mounting hole, a pressure monitoring hole is recessed in the middle of the bottom surface of the lower pressure relief sleeve, a torsion spring flipping groove is recessed at the top of the lower pressure relief sleeve, a pressure sealing and control plate is rotatably arranged in the torsion spring flipping groove through a torsion spring, a second conductive plate is arranged on the top surface of the pressure sealing and control plate, a trapezoidal limiting block is protruded at the top of the lower pressure relief sleeve, and the first conductive plate is installed inside the trapezoidal limiting block.

[0010] As a further improvement of the present invention, the valve core assembly includes a valve core seat, a sliding valve core, a valve core spring and a valve core abutting ball. The valve core seat is installed at the bottom of the valve core installation cavity. A valve core sliding hole is recessed in the middle of the top surface of the valve core seat. The bottom of the sliding valve core is slidably installed in the valve core sliding hole. A spring installation ring is protruded at the top of the outer wall of the sliding valve core. The top of the valve core spring is installed in the spring installation ring. The bottom of the valve core spring is installed on the top of the valve core seat. The valve core abutting ball is installed on the top of the sliding valve core, and the top of the valve core abutting ball abuts against the bottom of the inner wall of the pressure monitoring hole.

[0011] A bobbin contact pressure control system includes a monitoring frame assembly, a limiting assembly, two winding bobbin assemblies and two monitoring pressure reducing valves. The monitoring frame assembly includes two rotating control shells, an intermediate connecting frame and two rotating winding bobbin shells. The two rotating control shells are respectively installed at both ends of the installation ground. Both ends of the intermediate connecting frame are respectively slidably installed at the bottoms of the two rotating control shells through adjusting motors. Each rotating control shell has a hollow interior forming a rotating installation cavity. A driving rotating hole is recessed at the top of the inner end of the rotating installation cavity. A rotating motor is arranged in the driving rotating hole. The outer ends of the two rotating winding bobbin shells are respectively installed on the output shafts of the two rotating motors. Each rotating winding bobbin shell has a hollow interior forming an installation cavity. Winding rotating holes are respectively recessed on both sides of the inner end of the installation cavity. Valve body installation plates are respectively recessed on the outer sides of each installation cavity. A first pressing vertical plate is respectively protruded on one side of the top surface of each rotating winding bobbin shell, and a second pressing vertical plate is respectively protruded on the other side of the bottom surface of the rotating winding bobbin shell. Rotating installation holes are respectively recessed in the middle of the inner walls of the first pressing vertical plate and the second pressing vertical plate. Limiting wheels are arranged at the ends of the first pressing vertical plate and the second pressing vertical plate. The limiting assembly is installed at both ends of the intermediate connecting frame. The two winding bobbin assemblies are respectively installed in the two rotating winding bobbin shells. The two monitoring pressure reducing valves are respectively installed in the two valve body installation plates.

[0012] As a further improvement of the present invention, the limiting assembly includes two symmetrically arranged limiting elements. The two limiting elements are respectively installed at both ends of the intermediate connecting frame. Each limiting element includes a limiting vertical plate, a limiting telescopic cylinder and a limiting claw. The limiting vertical plate is installed at the end of the intermediate connecting frame. The limiting telescopic cylinder is installed in the limiting vertical plate. The bottom of the limiting claw is installed on the output shaft of the limiting telescopic cylinder.

[0013] As a further improvement of the present invention, each winding component includes a winding motor, two winding clamping blocks, a stop circular plate, a stop cylinder, a lead roller, two rotating cylinders, a guide roller and a pressing roller. The winding motor is installed on one side of the installation cavity. The two winding clamping blocks are respectively installed in the winding holes of the two rotating winding casings, and one of the winding clamping blocks is connected to the output shaft of the winding motor. The stop circular plate is installed in the middle of one of the winding clamping blocks. The stop cylinder is installed on one side of the inner end of the rotating winding casing, and the output shaft of the stop cylinder abuts against the outer wall of the stop circular plate. The two ends of the lead roller are respectively rotatably installed on the tops of the two first pressing vertical plates or the bottoms of the two second pressing vertical plates. The two rotating cylinders are respectively installed in the two rotating installation holes. The two ends of the guide roller are respectively installed on the output shafts of the two rotating cylinders. Pressing installation rods are respectively convexly provided at both ends of the outer wall of the guide roller. The two ends of the pressing roller are rotatably installed at the bottoms of the two pressing installation rods.

[0014] The beneficial effects of the present invention are as follows: 1. The present invention can accurately control the pressing pressure of the pressing roller, ensure the stable adjustment of the yarn tension, avoid being too tight or too loose. At the same time, when the pressure output by the contact pressure control system of the cheese fluctuates, it can relieve pressure in time and automatically stop the machine, avoid the expansion of faults, and achieve digital dynamic adjustment of the pressure alarm range, and communicate with the big data platform, view the stopped machine positions in time, achieve precise control, real-time monitoring, and effective shutdown.

[0015] 2. The present invention can provide stable and adjustable air pressure control and can relieve pressure and give an alarm when the pressure is abnormal, prevent the output of too high pressure, cause the rotation amount of the rotating cylinder to increase, cause the pressing pressure of the pressing roller to be too large, cause the cheese to deform, and even damage the original yarn, and can prevent the monitoring pressure reducing valve from being damaged, reduce the impact, and extend the service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional schematic diagram of the contact pressure control system of the cheese in an embodiment of the present invention.

[0017] Figure 2 It is a partial internal schematic diagram of the contact pressure control system of the cheese in an embodiment of the present invention.

[0018] Figure 3 It is a three-dimensional schematic diagram of a partial winding component in an embodiment of the present invention.

[0019] Figure 4 It is a three-dimensional schematic diagram of the monitoring pressure reducing valve in an embodiment of the present invention.

[0020] Figure 5 It is an exploded view of the monitoring pressure reducing valve in an embodiment of the present invention.

[0021] Figure 6Internal schematic diagram of the monitoring pressure reducing valve in an embodiment of the present invention.

[0022] Figure 7 Internal exploded view of the valve body assembly in an embodiment of the present invention.

[0023] Figure 8 Internal schematic diagram of the lower diaphragm assembly in an embodiment of the present invention.

[0024] Figure 9 Internal schematic diagram of the upper diaphragm assembly in an embodiment of the present invention.

[0025] Figure 10 Exploded view of the upper diaphragm assembly in an embodiment of the present invention.

[0026] In the figure: 10. Valve body assembly; 11. Lower valve body; 12. Intermediate valve body; 13. Upper valve body; 111. Air guiding cavity; 112. Spool installation cavity; 113. Air guiding control hole; 114. Air inlet hole; 115. Air outlet hole; 116. Intermediate limit block; 117. First inclined hole; 121. Intermediate cavity; 131. Adjusting cavity; 122. Intermediate communication hole; 123. First installation annular groove; 124. Second installation annular groove; 125. Pressure relief through hole; 132. Second inclined hole; 133. Adjusting installation hole; 134. First adjusting slide hole; 135. Second adjusting slide hole; 20. Pressure regulating assembly; 21. Pressure regulating housing; 22. Pressure regulating cylinder; 23. Adjusting slide cap; 24. Pressure regulating spring; 211. Pressure regulating installation cavity; 212. Cylinder pressure regulating hole; 50. Upper diaphragm assembly; 51. Diaphragm cover; 52. Upper diaphragm; 53. Intermediate sliding piece; 54. Upper bottom diaphragm; 56. Elastic triangular frame; 57. Upper floating ball; 58. Supporting seat; 59. Pressing spring; 531. Outflow impact hole; 40. Lower diaphragm assembly; 41. Lower top diaphragm; 42. Intermediate sliding cylinder; 43. Lower bottom diaphragm; 44. Lower pressure relief element; 421. Sealing plate; 431. First communication installation hole; 422. Second pressure relief hole; 423. Lower pressure relief installation ring; 441. Lower pressure relief sleeve; 444. Pressure monitoring hole; 445. Torsion spring flipping groove; 446. Pressure sealing control plate; 447. Trapezoidal limit block; 30. Spool assembly; 31. Spool seat; 32. Sliding spool; 33. Spool spring; 34. Spool supporting ball; 311. Spool slide hole; 321. Spring installation ring; 60. Monitoring frame assembly; 61. Rotating control housing; 62. Intermediate connecting frame; 63. Rotating winding shell; 613. Rotating motor; 631. Installation cavity; 632. Winding rotating hole; 633. Valve body mounting plate; 634. First pressing vertical plate; 635. Second pressing vertical plate; 636. Limiting wheel; 637. Rotating installation hole; 70. Limiting assembly; 71. Limiting element; 72. Limiting vertical plate; 73. Limiting telescopic cylinder; 74. Limiting claw; 80. Winding assembly; 81. Winding motor; 82. Winding clamping block; 83. Stopping circular plate; 84. Stopping cylinder; 85. Lead roller; 86. Rotating cylinder; 87. Guide roller; 88. Pressing roller; 871. Pressing installation rod. Detailed implementation manners

[0027] For the convenience of understanding the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. The preferred embodiments of the present invention are shown in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the disclosure of the present invention more thorough and comprehensive.

[0028] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present invention belongs. The terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0030] Please refer to Figure 2 and Figures 4 to 10 , a monitoring pressure reducing valve, comprising a valve body assembly 10, a pressure regulating assembly 20, a valve core assembly 30, a lower diaphragm assembly 40 and an upper diaphragm assembly 50. The valve body assembly 10 includes a lower valve body 11, an intermediate valve body 12 and an upper valve body 13. The lower valve body 11 is internally hollow and provided with a gas guiding cavity 111. The bottom of the lower valve body 11 is recessed with a valve core mounting cavity 112. The top surface of the valve core mounting cavity 112 is recessed with a gas guiding control hole 113. The gas guiding control hole 113 is communicated with the valve core mounting cavity 112. One end of the valve core mounting cavity 112 is recessed with an air inlet hole 114. The other end of the gas guiding cavity 111 is recessed with an air outlet hole 115. A plurality of intermediate limiting blocks 116 are convexly provided at intervals along the circumferential direction in the middle of the gas guiding cavity 111. The inner end of the inner wall of the air inlet hole 114 is recessed with a first inclined hole 117. The bottom of the intermediate valve body 12 is mounted on the top of the lower valve body 11. The inside of the intermediate valve body 12 is hollow to form an intermediate cavity 121. The intermediate cavity 121 is communicated with the gas guiding cavity 111. The bottom of the upper valve body 13 is mounted on the top of the intermediate cavity 121. The inside of the upper valve body 13 is hollow to form an adjusting cavity 131. The bottom of the valve core assembly 30 is mounted on the top of the upper valve body 13. The lower diaphragm assembly 40 is mounted in the intermediate cavity 121. The upper diaphragm assembly 50 is mounted in the adjusting cavity 131.

[0031] One end of the bottom surface of the intermediate cavity 121 is recessed with an intermediate communication hole 122, the intermediate communication hole 122 is communicated with the first inclined hole 117, the top of the inner wall of the intermediate cavity 121 is recessed with a first installation annular groove 123, the bottom of the inner wall of the intermediate cavity 121 is recessed with a second installation annular groove 124, and a pressure relief through hole 125 is recessed in the middle of the inner wall of the intermediate cavity 121; One end of the bottom surface of the adjustment cavity 131 is recessed with a second inclined hole 132, the second inclined hole 132 is communicated with the intermediate communication hole 122, an adjustment installation hole 133 is recessed in the middle of the bottom surface of the adjustment cavity 131, a first adjustment sliding hole 134 is recessed in the middle of the bottom surface of the adjustment installation hole 133, a second adjustment sliding hole 135 is recessed in the middle of the bottom surface of the first adjustment sliding hole 134, and the second adjustment sliding hole 135 is communicated with the intermediate cavity 121.

[0032] The pressure regulating assembly 20 includes a pressure regulating housing 21, a pressure regulating cylinder 22, an adjusting sliding cap 23 and a pressure regulating spring 24. The bottom of the pressure regulating housing 21 is installed on the top of the upper valve body 13. The inside of the pressure regulating housing 21 is hollow to form a pressure regulating installation cavity 211. The pressure regulating installation cavity 211 is communicated with the adjusting cavity 131. A cylinder pressure regulating hole 212 is recessed in the middle of the top surface of the pressure regulating installation cavity 211. The bottom of the pressure regulating cylinder 22 is installed on the top of the pressure regulating housing 21. The outer wall of the adjusting sliding cap 23 is slidably installed on the top of the pressure regulating installation cavity 211. The middle of the adjusting sliding cap 23 is connected to the output shaft of the pressure regulating cylinder 22. The top of the pressure regulating spring 24 is connected to the adjusting sliding cap 23.

[0033] The upper diaphragm assembly 50 includes a diaphragm cover 51, an upper diaphragm 52, an intermediate sliding piece 53, an upper bottom diaphragm 54, an elastic triangular frame 56, a floating ball 57, a supporting seat 58 and a pressing spring 59. The top of the diaphragm cover 51 is installed at the bottom of the pressure regulating spring 24. The top of the upper diaphragm 52 is installed at the bottom of the diaphragm cover 51, and the outer wall of the upper diaphragm 52 is connected to the bottom of the inner wall of the pressure regulating installation cavity 211. The outer wall of the intermediate sliding piece 53 is slidably installed on the top of the outer wall of the adjusting cavity 131. An outflow impact hole 531 is recessed in the top surface of the intermediate sliding piece 53. The outflow impact hole 531 is oppositely arranged with the top of the second inclined hole 132. The top of the upper bottom diaphragm 54 is installed at the bottom of the intermediate sliding piece 53. The elastic triangular frame 56 is installed at the bottom of the adjustment installation hole 133. The floating ball 57 is installed in the middle of the elastic triangular frame 56. The outer wall of the supporting seat 58 is slidably installed in the second adjustment sliding hole 135. The top of the supporting seat 58 abuts against the bottom of the floating ball 57. The top of the pressing spring 59 is installed at the bottom of the supporting seat 58.

[0034] The lower diaphragm assembly 40 includes a lower top diaphragm 41, an intermediate sliding cylinder 42, a lower bottom diaphragm 43, and a lower pressure relief element 44. The lower top diaphragm 41 is installed in the first installation annular groove 123. The top of the intermediate sliding cylinder 42 is installed in the middle of the bottom surface of the lower top diaphragm 41. The lower bottom diaphragm 43 is installed in the second installation annular groove 124. A first communication installation hole 431 is recessed in the middle of the bottom surface of the lower bottom diaphragm 43. The bottom of the intermediate sliding cylinder 42 is installed in the middle of the bottom surface of the lower bottom diaphragm 43. The outer wall of the intermediate sliding cylinder 42 is slidably installed on the inner wall of the intermediate cavity 121. A sealing plate 421 is provided at the top of the inner wall of the intermediate sliding cylinder 42. A second pressure relief hole 422 is recessed in the middle of the inner wall of the intermediate sliding cylinder 42. The second pressure relief hole 422 communicates with the pressure relief through hole 125. A lower pressure relief installation ring 423 protrudes from the bottom of the inner wall of the intermediate sliding cylinder 42. The lower pressure relief element 44 is installed on the inner wall of the lower pressure relief installation ring 423.

[0035] The lower pressure relief element 44 includes a lower pressure relief sleeve 441 and a first conductive plate. The top of the outer wall of the lower pressure relief sleeve 441 is connected to the inner wall of the lower pressure relief installation ring 423. The middle of the outer wall of the lower pressure relief sleeve 441 is connected to the middle of the inner wall of the first communication installation hole 431. A pressure monitoring hole 444 is recessed in the middle of the bottom surface of the lower pressure relief sleeve 441. A torsion spring flipping groove 445 is recessed at the top of the lower pressure relief sleeve 441. A pressure sealing and control plate 446 is rotatably arranged in the torsion spring flipping groove 445 through a torsion spring. A second conductive plate is provided on the top surface of the pressure sealing and control plate 446. A trapezoidal limiting block 447 protrudes from the top of the lower pressure relief sleeve 441. The first conductive plate is installed inside the trapezoidal limiting block 447.

[0036] The valve core assembly 30 includes a valve core seat 31, a sliding valve core 32, a valve core spring 33, and a valve core abutting ball 34. The valve core seat 31 is installed at the bottom of the valve core installation cavity 112. A valve core sliding hole 311 is recessed in the middle of the top surface of the valve core seat 31. The bottom of the sliding valve core 32 is slidably installed in the valve core sliding hole 311. A spring installation ring 321 protrudes from the top of the outer wall of the sliding valve core 32. The top of the valve core spring 33 is installed in the spring installation ring 321. The bottom of the valve core spring 33 is installed on the top of the valve core seat 31. The valve core abutting ball 34 is installed on the top of the sliding valve core 32, and the top of the valve core abutting ball 34 abuts against the bottom of the inner wall of the pressure monitoring hole 444.

[0037] Please refer to Figures 1 to 3, A cheese contact pressure control system, comprising a monitoring frame assembly 60, a limiting assembly 70, two winding bobbin assemblies 80 and two monitoring pressure reducing valves. The monitoring frame assembly 60 includes two rotating control shells 61, an intermediate connecting frame 62 and two rotating winding bobbin shells 63. The two rotating control shells 61 are respectively installed at both ends of the installation ground. The two ends of the intermediate connecting frame 62 are respectively slidably installed at the bottoms of the two rotating control shells 61 through adjusting motors. The interior of each rotating control shell 61 is hollow to form a rotating installation cavity. The inner end top of the rotating installation cavity is recessed with a driving hole. A rotating motor 613 is arranged in the driving hole. The outer ends of the two rotating winding bobbin shells 63 are respectively installed on the output shafts of the two rotating motors 613. The interior of each rotating winding bobbin shell 63 is hollow to form an installation cavity 631. The two sides of the inner end of the installation cavity 631 are respectively recessed with winding holes 632. The outer sides of each installation cavity 631 are respectively recessed with valve body mounting plates 633. One side of the top surface of each rotating winding bobbin shell 63 is respectively convex with a first pressing vertical plate 634, and the other side of the bottom surface of the rotating winding bobbin shell 63 is respectively convex with a second pressing vertical plate 635. The middle parts of the inner walls of the first pressing vertical plate 634 and the second pressing vertical plate 635 are respectively recessed with rotating installation holes 637. The ends of the first pressing vertical plate 634 and the second pressing vertical plate 635 are both provided with limiting wheels 636. The limiting assembly 70 is installed at both ends of the intermediate connecting frame 62. The two winding bobbin assemblies 80 are respectively installed in the two rotating winding bobbin shells 63. The two monitoring pressure reducing valves are respectively installed in the two valve body mounting plates 633.

[0038] The limiting assembly 70 includes two symmetrically arranged limiting elements 71. The two limiting elements 71 are respectively installed at both ends of the intermediate connecting frame 62. Each limiting element 71 includes a limiting vertical plate 72, a limiting telescopic cylinder 73 and a limiting jaw 74. The limiting vertical plate 72 is installed at the end of the intermediate connecting frame 62. The limiting telescopic cylinder 73 is installed in the limiting vertical plate 72. The bottom of the limiting jaw 74 is installed on the output shaft of the limiting telescopic cylinder 73.

[0039] Each bobbin component 80 includes a winding motor 81, two winding clamping blocks 82, a stop circular plate 83, a stop cylinder 84, a lead roller 85, two rotating cylinders 86, a guide roller 87 and a pressing roller 88. The winding motor 81 is installed on one side of the installation cavity 631. The two winding clamping blocks 82 are respectively installed in the winding rotation holes 632 of the two rotating bobbin shells 63, and one of the winding clamping blocks 82 is connected to the output shaft of the winding motor 81. The stop circular plate 83 is installed in the middle of one of the winding clamping blocks 82. The stop cylinder 84 is installed on one side of the inner end of the rotating bobbin shell 63, and the output shaft of the stop cylinder 84 abuts against the outer wall of the stop circular plate 83. The two ends of the lead roller 85 are respectively rotatably installed on the tops of the two first pressing vertical plates 634 or the bottoms of the two second pressing vertical plates 635. The two rotating cylinders 86 are respectively installed in the two rotating installation holes 637. The two ends of the guide roller 87 are respectively installed on the output shafts of the two rotating cylinders 86. Pressing installation rods 871 are respectively convexly provided at both ends of the outer wall of the guide roller 87. The two ends of the pressing roller 88 are rotatably installed at the bottoms of the two pressing installation rods 871.

[0040] For example, in one embodiment: A rotating sleeve is provided in the middle of the outer wall of the guide roller 87. The rotating sleeve is arranged between the two pressing installation rods 871. The two rotating cylinders 86 are respectively connected to the air inlet hole 114 and the air outlet hole 115 of the lower valve body 11 through pipelines to perform pressure monitoring and adjustment by using a monitoring pressure reducing valve.

[0041] For example, in one embodiment: Before winding the bobbin, two bobbin reels are clamped and installed inside the four winding clamping blocks 82. Subsequently, the raw yarn is respectively wound around the lead roller 85 and the guide roller 87 arranged on the first pressing vertical plate 634 and then wound around the outer bobbin reels. Subsequently, the two rotating motors 613 are started to drive the two rotating bobbin shells 63 and the two bobbin components 80 to rotate, so that the raw yarn is tightened. Subsequently, the two adjusting motors are started to drive the intermediate connecting frame 62 to move directly below the limiting wheels 636 of the second pressing vertical plate 635. Subsequently, the two limiting telescopic cylinders 73 are started, so that the two limiting claws 74 move upward until the limiting claws 74 abut against the limiting wheels 636 of the second pressing vertical plate 635 to perform limiting clamping on the two rotating bobbin shells 63 and the two bobbin components 80. Subsequently, the two rotating cylinders 86 and the rotating motors 613 arranged on the two first pressing vertical plates 634 are started to drive the bobbin reels to rotate, wind the raw yarn, and at the same time the rotating cylinders 86 will drive the guide roller 87 to rotate, so that the pressing roller 88 moves downward to press the raw yarn to control the winding density and forming.

[0042] For example, in one embodiment: When the rotating cylinder 86 needs to be started, compressed gas will enter from the air inlet hole 114. Part of the compressed gas will flow out from the second inclined hole 132 along the first inclined hole 117 and the intermediate communication hole 122, and then impact the upper diaphragm 52 through the outflow impact hole 531, causing the upper diaphragm 52 to arch upward, causing the intermediate sliding piece 53 and the upper bottom diaphragm 54 to move accordingly. As a result, the pushing force of its floating ball 57 disappears, causing the elastic tripod 56 to rebound upward, causing the holding force of the floating ball 57 against the holding seat 58 to decrease synchronously, causing the pressing spring 59 to rebound upward, causing the pushing force of the pressing spring 59 on the lower diaphragm assembly 40 to decrease, causing the lower top diaphragm 41 and the lower bottom diaphragm 43 to move upward accordingly, causing the lower pressure relief sleeve 441 to move upward accordingly, causing the flow space of the compressed air flow in the air guide cavity 111 to expand. At the same time, another part of the compressed gas will press the sliding valve core 32 to slide downward, thereby opening the air guide control hole 113, entering the air guide cavity 111 and then flowing out from the air outlet hole 115.

[0043] For example, in one embodiment: When it is necessary to adjust the pressure of the compressed gas output, the pressure regulating cylinder 22 will be started, causing the output shaft of the pressure regulating cylinder 22 to extend / retract, causing the regulating sliding cap 23 to move up and down accordingly, thereby causing the pressure of the pressure regulating spring 24 on the upper diaphragm 52 to change. As a result, when the subsequent compressed gas flows out from the second inclined hole 132 and impacts the upper diaphragm 52, the arching amplitude of the upper diaphragm 52 will change accordingly, and then the upward movement amplitude of the subsequent lower pressure relief sleeve 441 will change accordingly, thereby adjusting the flow area of the compressed air flow and accurately controlling the output pressure.

[0044] For example, in one embodiment: When the winding motor 81 or two winding clamping blocks 82 malfunction, causing the rotation of the bobbin to be unstable, the air source pressure to fluctuate, or the monitored pressure reducing valve to be damaged, etc., resulting in fluctuations in the compressed gas pressure and a sudden increase, the excessive compressed gas will quickly flow out from the air guiding control hole 113, and impact the pressure sealing plate 446 through the air guiding cavity 111 and the pressure monitoring hole 444, causing the pressure sealing plate 446 to rotate and open. Then, the excessive compressed gas will flow out from the second pressure relief hole 422 and the pressure relief through hole 125, preventing the sudden excessive gas pressure from damaging the monitored pressure reducing valve, or preventing the sudden excessive pressure output from causing an increase in the rotation amount of the rotating cylinder 86, resulting in excessive pressure applied by the pressing roller 88 and causing the bobbin yarn to deform or even damage the original yarn. At the same time, it will cause the second conductive plate to contact the first conductive plate and send an electrical signal to the winding motor 81, the limiting telescopic cylinder 73, and the rotating motor 613, causing the winding motor 81 to stop rotating and output, and at the same time, the output shaft of the limiting telescopic cylinder 73 will retract, and the rotating motor 613 will rotate in the reverse direction, preventing the original yarn from being overly tightened and damaged, and transmitting the alarm information to the big data platform to achieve interconnection and interoperability, timely view the stopped machine positions, achieve precise control, real-time monitoring, and effective shutdown.

[0045] For example, in one embodiment: A pressure alarm sensor is additionally provided in the pipeline connected to the air outlet 115. When the monitored pressure reducing valve leaks or other situations occur, resulting in too low pressure and thus the loss of pressure of the pressing roller 88, it can alarm in a timely manner.

[0046] Installation process: Two rotating control shells 61 are respectively installed at both ends of the installation ground. Both ends of the middle connecting frame 62 are respectively slidably installed at the bottoms of the two rotating control shells 61 through adjusting motors. The outer ends of the two rotating bobbin shells 63 are respectively installed on the output shafts of the two rotating motors 613. The two limiting elements 71 are respectively installed at both ends of the middle connecting frame 62. The limiting vertical plate 72 is installed at the end of the middle connecting frame 62. The limiting telescopic cylinder 73 is installed in the limiting vertical plate 72. The bottom of the limiting jaw 74 is installed on the output shaft of the limiting telescopic cylinder 73. The winding motor 81 is installed on one side of the installation cavity 631. The two winding clamping blocks 82 are respectively installed in the winding rotation holes 632 of the two rotating bobbin shells 63, and one of the winding clamping blocks 82 is connected to the output shaft of the winding motor 81. The stop circular plate 83 is installed in the middle of one of the winding clamping blocks 82. The stop cylinder 84 is installed on one side of the inner end of the rotating bobbin shell 63, and the output shaft of the stop cylinder 84 abuts against the outer wall of the stop circular plate 83. Both ends of the lead roller 85 are respectively rotatably installed at the tops of the two first pressing vertical plates 634 or the bottoms of the two second pressing vertical plates 635. The two rotating cylinders 86 are respectively installed in the two rotating installation holes 637. Both ends of the guide roller 87 are respectively installed on the output shafts of the two rotating cylinders 86. Pressing installation rods 871 are respectively convexly provided at both ends of the outer wall of the guide roller 87. Both ends of the pressing roller 88 are rotatably installed at the bottoms of the two pressing installation rods 871.

[0047] The bottom of the middle valve body 12 is installed on the top of the lower valve body 11, the bottom of the upper valve body 13 is installed on the top of the middle cavity 121, the bottom of the pressure regulating housing 21 is installed on the top of the upper valve body 13, the outer wall of the adjusting sliding cap 23 is slidably installed on the top of the pressure regulating installation cavity 211, the middle part of the adjusting sliding cap 23 is connected to the output shaft of the pressure regulating cylinder 22, the top of the pressure regulating spring 24 is connected to the adjusting sliding cap 23, the top of the diaphragm cover 51 is installed on the bottom of the pressure regulating spring 24, the top of the upper diaphragm 52 is installed on the bottom of the diaphragm cover 51, and the outer wall of the upper diaphragm 52 is connected to the bottom inner wall of the pressure regulating installation cavity 211. The outer wall of the middle sliding piece 53 is slidably installed on the top of the outer wall of the adjusting cavity 131, the top of the upper bottom diaphragm 54 is installed on the bottom of the middle sliding piece 53, the elastic tripod 56 is installed at the bottom of the adjusting installation hole 133, the floating ball 57 is installed in the middle of the elastic tripod 56, the outer wall of the abutting seat 58 is slidably installed in the second adjusting sliding hole 135, the top of the abutting seat 58 abuts against the bottom of the floating ball 57, the top of the pressing spring 59 is installed on the bottom of the abutting seat 58, the lower top diaphragm 41 is installed in the first installation annular groove 123, the top of the middle sliding cylinder 42 is installed in the middle of the bottom surface of the lower top diaphragm 41, the lower bottom diaphragm 43 is installed in the second installation annular groove 124, the bottom of the middle sliding cylinder 42 is installed in the middle of the bottom surface of the lower bottom diaphragm 43, the outer wall of the middle sliding cylinder 42 is slidably installed on the inner wall of the middle cavity 121, the lower pressure relief element 44 is installed on the inner wall of the lower pressure relief installation ring 423, the top outer wall of the lower pressure relief sleeve 441 is connected to the inner wall of the lower pressure relief installation ring 423, the middle outer wall of the lower pressure relief sleeve 441 is connected to the middle of the inner wall of the first communication installation hole 431, the first conductive plate is installed inside the trapezoidal limiting block 447, the valve core seat 31 is installed at the bottom of the valve core installation cavity 112, the bottom of the sliding valve core 32 is slidably installed in the valve core sliding hole 311, the top of the valve core spring 33 is installed in the spring installation ring 321, the bottom of the valve core spring 33 is installed on the top of the valve core seat 31, the valve core abutting ball 34 is installed on the top of the sliding valve core 32, and the top of the valve core abutting ball 34 abuts against the bottom inner wall of the pressure monitoring hole 444. The valve body assembly 10 is installed in the valve body mounting plate 633.

[0048] The present invention can achieve: 1. The present invention can accurately control the pressing pressure of the pressing roller 88, ensure the stable adjustment of the yarn tension, avoid being too tight or too loose. At the same time, when the pressure output by the contact pressure control system of the cheese fluctuates, it can relieve pressure in time and automatically stop the machine to avoid the expansion of the fault, and achieve digital dynamic adjustment of the pressure alarm range, and communicate with the big data platform in real time to view the stopped machine positions in time, so as to achieve accurate control, real-time monitoring, and effective shutdown.

[0049] 2. The present invention can provide stable and adjustable air pressure control, and can relieve pressure and give an alarm when abnormal pressure occurs, preventing excessive pressure output, which may cause the rotation amount of the rotating cylinder 86 to increase, resulting in excessive pressing pressure of the pressing roller 88, causing the bobbin yarn to deform or even damage the original yarn, and can prevent the monitoring pressure reducing valve from being damaged, reduce impact, and extend the service life of the equipment.

[0050] The above-described embodiments merely represent several embodiments of the present invention, and the description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the appended claims.

Claims

1. A monitoring pressure reducing valve, characterized in that: It includes a valve body assembly (10), a pressure regulating assembly (20), a valve core assembly (30), a lower diaphragm assembly (40) and an upper diaphragm assembly (50). The valve body assembly (10) includes a lower valve body (11), an intermediate valve body (12) and an upper valve body (13). The interior of the lower valve body (11) is hollow and provided with a gas guiding cavity (111). The bottom of the lower valve body (11) is concavely provided with a valve core installation cavity (112). The top surface of the valve core installation cavity (112) is concavely provided with a gas guiding control hole (113). The gas guiding control hole (113) communicates with the valve core installation cavity (112). One end of the valve core installation cavity (112) is concavely provided with an air inlet hole (114). The other end of the gas guiding cavity (111) is concavely provided with an air outlet hole (115). In the middle of the gas guiding cavity (111), a plurality of intermediate limiting blocks (116) are convexly provided at intervals along the circumferential direction. The inner end of the inner wall of the air inlet hole (114) is concavely provided with a first inclined hole (117). The bottom of the intermediate valve body (12) is installed on the top of the lower valve body (11). The interior of the intermediate valve body (12) is hollow to form an intermediate cavity (121). The intermediate cavity (121) communicates with the gas guiding cavity (111). The bottom of the upper valve body (13) is installed on the top of the intermediate cavity (121). The interior of the upper valve body (13) is hollow to form an adjustment cavity (131). The bottom of the valve core assembly (30) is installed on the top of the upper valve body (13). The lower diaphragm assembly (40) is installed in the intermediate cavity (121). The upper diaphragm assembly (50) is installed in the adjustment cavity (131).

2. The monitoring pressure reducing valve according to claim 1, characterized in that: One end of the bottom surface of the intermediate cavity (121) is concavely provided with an intermediate communication hole (122). The intermediate communication hole (122) communicates with the first inclined hole (117). The top of the inner wall of the intermediate cavity (121) is concavely provided with a first installation annular groove (123). The bottom of the inner wall of the intermediate cavity (121) is concavely provided with a second installation annular groove (124). The middle of the inner wall of the intermediate cavity (121) is concavely provided with a pressure relief through hole (125). One end of the bottom surface of the adjustment cavity (131) is concavely provided with a second inclined hole (132). The second inclined hole (132) communicates with the intermediate communication hole (122). The middle of the bottom surface of the adjustment cavity (131) is concavely provided with an adjustment installation hole (133). The middle of the bottom surface of the adjustment installation hole (133) is concavely provided with a first adjustment sliding hole (134). The middle of the bottom surface of the first adjustment sliding hole (134) is concavely provided with a second adjustment sliding hole (135). The second adjustment sliding hole (135) communicates with the intermediate cavity (121).

3. The monitoring pressure reducing valve according to claim 2, characterized in that: The pressure regulating component (20) includes a pressure regulating housing (21), a pressure regulating cylinder (22), an adjusting sliding cap (23) and a pressure regulating spring (24). The bottom of the pressure regulating housing (21) is installed on the top of the upper valve body (13). The inside of the pressure regulating housing (21) is hollow to form a pressure regulating installation cavity (211). The pressure regulating installation cavity (211) is communicated with the adjusting cavity (131). In the middle of the top surface of the pressure regulating installation cavity (211), a cylinder pressure regulating hole (212) is recessed. The bottom of the pressure regulating cylinder (22) is installed on the top of the pressure regulating housing (21). The outer wall of the adjusting sliding cap (23) is slidably installed on the top of the pressure regulating installation cavity (211). The middle of the adjusting sliding cap (23) is connected to the output shaft of the pressure regulating cylinder (22). The top of the pressure regulating spring (24) is connected to the adjusting sliding cap (23).

4. The monitoring pressure reducing valve according to claim 3, wherein: The upper diaphragm component (50) includes a diaphragm cover (51), an upper diaphragm (52), an intermediate sliding piece (53), an upper bottom diaphragm (54), an elastic triangular frame (56), a floating ball (57), a supporting seat (58) and a pressing spring (59). The top of the diaphragm cover (51) is installed on the bottom of the pressure regulating spring (24). The top of the upper diaphragm (52) is installed on the bottom of the diaphragm cover (51), and the outer wall of the upper diaphragm (52) is connected to the bottom inner wall of the pressure regulating installation cavity (211). The outer wall of the intermediate sliding piece (53) is slidably installed on the top of the outer wall of the adjusting cavity (131). On the top surface of the intermediate sliding piece (53), an outflow impact hole (531) is recessed. The outflow impact hole (531) is oppositely arranged with the top of the second inclined hole (132). The top of the upper bottom diaphragm (54) is installed on the bottom of the intermediate sliding piece (53). The elastic triangular frame (56) is installed on the bottom of the adjusting installation hole (133). The floating ball (57) is installed in the middle of the elastic triangular frame (56). The outer wall of the supporting seat (58) is slidably installed in the second adjusting slide hole (135). The top of the supporting seat (58) abuts against the bottom of the floating ball (57). The top of the pressing spring (59) is installed on the bottom of the supporting seat (58).

5. The monitoring pressure reducing valve according to claim 4, characterized in that: The lower diaphragm component (40) includes a lower top diaphragm (41), an intermediate sliding cylinder (42), a lower bottom diaphragm (43) and a lower pressure relief element (44). The lower top diaphragm (41) is installed in the first installation annular groove (123). The top of the intermediate sliding cylinder (42) is installed in the middle of the bottom surface of the lower top diaphragm (41). The lower bottom diaphragm (43) is installed in the second installation annular groove (124). In the middle of the bottom surface of the lower bottom diaphragm (43), a first communication installation hole (431) is recessed. The bottom of the intermediate sliding cylinder (42) is installed in the middle of the bottom surface of the lower bottom diaphragm (43). The outer wall of the intermediate sliding cylinder (42) is slidably installed on the inner wall of the intermediate cavity (121). At the top of the inner wall of the intermediate sliding cylinder (42), a sealing plate (421) is provided. In the middle of the inner wall of the intermediate sliding cylinder (42), a second pressure relief hole (422) is recessed. The second pressure relief hole (422) is communicated with the pressure relief through hole (125). At the bottom of the inner wall of the intermediate sliding cylinder (42), a lower pressure relief installation ring (423) protrudes. The lower pressure relief element (44) is installed on the inner wall of the lower pressure relief installation ring (423).

6. The monitoring pressure reducing valve according to claim 5, characterized in that: The lower pressure relief component (44) includes a lower pressure relief sleeve (441) and a first conductive plate. The top of the outer wall of the lower pressure relief sleeve (441) is connected to the inner wall of the lower pressure relief mounting ring (423), the middle of the outer wall of the lower pressure relief sleeve (441) is connected to the middle of the inner wall of the first communication mounting hole (431), a pressure monitoring hole (444) is concavely provided in the middle of the bottom surface of the lower pressure relief sleeve (441), a torsion spring turning groove (445) is concavely provided at the top of the lower pressure relief sleeve (441), a pressure sealing and control plate (446) is rotationally arranged in the torsion spring turning groove (445) through a torsion spring, a second conductive plate is arranged on the top surface of the pressure sealing and control plate (446), a trapezoidal limiting block (447) is convexly provided at the top of the lower pressure relief sleeve (441), and the first conductive plate is installed inside the trapezoidal limiting block (447).

7. The monitoring pressure reducing valve according to claim 6, characterized in that: The valve core assembly (30) includes a valve core seat (31), a sliding valve core (32), a valve core spring (33) and a valve core abutting ball (34). The valve core seat (31) is installed at the bottom of the valve core installation cavity (112), a valve core sliding hole (311) is concavely provided in the middle of the top surface of the valve core seat (31), the bottom of the sliding valve core (32) is slidably installed in the valve core sliding hole (311), a spring installation ring (321) is convexly provided at the top of the outer wall of the sliding valve core (32), the top of the valve core spring (33) is installed in the spring installation ring (321), the bottom of the valve core spring (33) is installed at the top of the valve core seat (31), the valve core abutting ball (34) is installed at the top of the sliding valve core (32), and the top of the valve core abutting ball (34) abuts against the bottom of the inner wall of the pressure monitoring hole (444).

8. A cheese contact pressure control system, characterized in that: It includes a monitoring frame assembly (60), a limiting assembly (70), two winding bobbin assemblies (80), and two monitoring pressure reducing valves as described in claims 1-7. The monitoring frame assembly (60) includes two rotating control shells (61), an intermediate connecting frame (62), and two rotating winding bobbin shells (63). The two rotating control shells (61) are respectively installed at both ends of the installation ground. Both ends of the intermediate connecting frame (62) are slidably installed at the bottoms of the two rotating control shells (61) through adjusting motors. The interior of each rotating control shell (61) is hollow to form a rotating installation cavity. A driving rotating hole is recessed at the top of the inner end of the rotating installation cavity. A rotating motor (613) is arranged in the driving rotating hole. The outer ends of the two rotating winding bobbin shells (63) are respectively installed on the output shafts of the two rotating motors (613). The interior of each rotating winding bobbin shell (63) is hollow to form an installation cavity (631). Winding rotating holes (632) are respectively recessed on both sides of the inner end of the installation cavity (631). Valve body installation plates (633) are respectively recessed on the outer sides of each installation cavity (631). A first pressing vertical plate (634) is respectively protruded on one side of the top surface of each rotating winding bobbin shell (63). A second pressing vertical plate (635) is respectively protruded on the other side of the bottom surface of the rotating winding bobbin shell (63). Rotating installation holes (637) are respectively recessed in the middle parts of the inner walls of the first pressing vertical plate (634) and the second pressing vertical plate (635). Limiting wheels (636) are arranged at the ends of the first pressing vertical plate (634) and the second pressing vertical plate (635). The limiting assembly (70) is installed at both ends of the intermediate connecting frame (62). The two winding bobbin assemblies (80) are respectively installed in the two rotating winding bobbin shells (63). The two monitoring pressure reducing valves are respectively installed in the two valve body installation plates (633).

9. The cheese contact pressure control system according to claim 8, wherein: The limiting assembly (70) includes two symmetrically arranged limiting elements (71). The two limiting elements (71) are respectively installed at both ends of the intermediate connecting frame (62). Each limiting element (71) includes a limiting vertical plate (72), a limiting telescopic cylinder (73), and a limiting claw (74). The limiting vertical plate (72) is installed at the end of the intermediate connecting frame (62). The limiting telescopic cylinder (73) is installed in the limiting vertical plate (72). The bottom of the limiting claw (74) is installed on the output shaft of the limiting telescopic cylinder (73).

10. The cheese contact pressure control system according to claim 9, characterized in that: Each bobbin component (80) includes a winding motor (81), two winding clamping blocks (82), a stop circular plate (83), a stop cylinder (84), a lead roller (85), two rotating cylinders (86), a guide roller (87) and a pressing roller (88). The winding motor (81) is installed on one side of the installation cavity (631). The two winding clamping blocks (82) are respectively installed in the winding rotation holes (632) of the two rotating bobbin shells (63), and one of the winding clamping blocks (82) is connected to the output shaft of the winding motor (81). The stop circular plate (83) is installed in the middle of one of the winding clamping blocks (82). The stop cylinder (84) is installed on one side of the inner end of the rotating bobbin shell (63), and the output shaft of the stop cylinder (84) abuts against the outer wall of the stop circular plate (83). The two ends of the lead roller (85) are respectively rotatably installed at the tops of the two first pressing vertical plates (634) or the bottoms of the two second pressing vertical plates (635). The two rotating cylinders (86) are respectively installed in the two rotating installation holes (637). The two ends of the guide roller (87) are respectively installed on the output shafts of the two rotating cylinders (86). Pressing installation rods (871) are respectively convexly provided at both ends of the outer wall of the guide roller (87). The two ends of the pressing roller (88) are rotatably installed at the bottoms of the two pressing installation rods (871).

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