Three-roller machine with multiple protection functions

Abstract

The invention relates to the technical field of three-roller machine equipment, in particular to a three-roller machine with a multi-protection function, which comprises an equipment frame, a three-roller unit is arranged in the equipment frame, diversion seats are fixedly connected to corners of two sides of the equipment frame, one side of each diversion seat is fixedly connected with a first sliding side frame, and the other side of each diversion seat is fixedly connected with a second sliding side frame. A second sliding side frame is fixedly connected to the bottom ends of the flow dividing seats, sliding racks are arranged on the inner walls of the first sliding side frame and the second sliding side frame, and an air uniformizing pipe frame is arranged between the two flow dividing seats. Through the arrangement of the equipment frame, the three-roller unit, the flow dividing base, the first sliding side frame, the second sliding side frame, the sliding rack, the air uniformizing pipe frame, the air control pump, the first folding curtain cover and the second folding curtain cover, the equipment can be used for the three-roller machine for full-face covering protection; a worker firstly starts the three-roller unit in the equipment frame, and then roll-in grinding operation is carried out through a mechanical structure in the three-roller unit.

Description

Technical Field

[0001] The invention relates to the technical field of three-roller machine equipment, in particular to a three-roller machine with multiple protection functions. Background Art

[0002] Three-roller grinder is referred to as three-roller grinder. Three-roller grinder can be divided into experimental three-roller grinder and production three-roller grinder. Three-roller grinder is suitable for the manufacture of slurries such as paint, ink, pigment, plastic, etc. The working principle of three-roller grinder is that the three-roller grinder achieves the grinding effect through the mutual extrusion of the surfaces of three horizontal rollers and the friction at different speeds. Three-roller grinder is the most effective grinding and dispersing equipment for high-viscosity materials. Three-roller grinder has three rollers installed on an iron frame with the center in a straight line. It can be installed horizontally or slightly inclined. The grinding effect is achieved through the mutual extrusion of the surfaces of three horizontal rollers and the friction at different speeds. The steel roller can be hollow and cooled by water. The material is added between the middle roller and the rear roller. Due to the different rotation directions of the three rollers, a good grinding effect is produced. After grinding, the material is scraped off by the scraper installed in front of the front roller.

[0003] For example, the patent document with the announcement number CN 110898914 B discloses a three-roller machine for grinding ink, which belongs to the technical field of ink production equipment, including a grinding disc, a support column is fixedly installed at the bottom of the grinding disc, a support frame is fixedly installed at the upper end of the grinding disc, a support plate is installed in the support frame, and the support plate includes a first fixed plate, a second fixed plate and a third fixed plate, an adjustment mechanism is installed in the second fixed plate, and the adjustment mechanism is respectively connected to the first fixed plate and the third fixed plate; the present invention synchronously adjusts the distance between the first grinding roller and the third grinding roller and the second grinding roller by setting an adjustment mechanism, so that the adjustment is more precise and the operation is more convenient, and the first grinding roller and the third grinding roller can be adjusted separately, and at the same time, the feeding hopper is set to make the feeding more uniform, thereby improving the grinding efficiency and being more practical.

[0004] At present, in the equipment, protective covers are installed at the roller running part to prevent the operator from mechanical injury due to improper operation. At the same time, switches / emergency stop switches are set to ensure that the equipment can be stopped quickly in an emergency. In addition, some equipment is also equipped with a safety interlock system. When the protective device is not installed correctly or is in an abnormal state, the equipment cannot be started or will automatically shut down. However, despite these safety protection measures, the three-roller extrusion line equipment may still have some defects and deficiencies in actual use. Limitations of protective devices: The protective cover may not fully cover all potential hazardous areas, especially in complex operating environments, there may be some parts that are difficult to protect. For example, for some parts that require frequent adjustment or maintenance, the protective cover may need to be temporarily removed during operation, which increases the risk of operators being exposed to danger. The reliability of the emergency stop switch. Although the emergency stop switch is an important safety device, it may also fail or malfunction. For example, the contacts of the switch may have poor contact due to wear, corrosion or dust accumulation, resulting in the inability to cut off the power supply in time in an emergency. The complexity of the safety interlock system. The design and maintenance of the safety interlock system are relatively complex. If the system fails or is misoperated, it may cause protection failure. In addition, the accuracy and reliability of the interlocking system's components, such as sensors, may be affected by environmental factors and fail to meet daily usage requirements. Therefore, it is urgent to design a three-roller machine with multiple protection functions to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to provide a three-roller machine with multiple protection functions to solve the problem proposed in the above background technology that currently in the equipment, a protective cover is installed at the roller running part to prevent the operator from mechanical injury due to improper operation. At the same time, a switch / emergency stop switch is set to ensure that the equipment can be quickly stopped in an emergency. In addition, some equipment is also equipped with a safety interlock system. When the protective device is not installed correctly or is in an abnormal state, the equipment cannot be started or will automatically shut down. However, despite these safety protection measures, the three-roller extrusion line equipment may still have some defects and shortcomings in actual use. The limitations of the protective device: the protective cover may not be able to completely cover all potential danger areas, especially in complex operating environments, and there may be some difficulties. To protect the parts, for example, for some parts that require frequent adjustment or maintenance, it may be necessary to temporarily remove the protective cover during operation, which increases the risk of operators being exposed to danger. The reliability of the emergency stop switch. Although the emergency stop switch is an important safety device, it may also fail or malfunction. For example, the contacts of the switch may have poor contact due to wear, corrosion or dust accumulation, resulting in the inability to cut off the power supply in time in an emergency. The complexity of the safety interlock system. The design and maintenance of the safety interlock system is relatively complex. If the system fails or is misoperated, the protection may fail. In addition, the sensors and other components of the interlock system may also be affected by environmental factors. Its accuracy and reliability cannot meet the daily use needs.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a three-roller machine with multiple protection functions, comprising an equipment frame, a three-roller machine group is arranged inside the equipment frame, two corners of the equipment frame are fixedly connected with a shunt seat, one side of the shunt seat is fixedly connected with a first sliding side frame, the bottom end of the shunt seat is fixedly connected with a second sliding side frame, the inner walls of the first sliding side frame and the second sliding side frame are provided with sliding racks, an air-uniform pipe frame is arranged between two groups of the shunt seats, an air-control pump is arranged at one end of the air-uniform pipe frame, a first folding curtain cover is arranged between the two groups of the first sliding side frames, a second folding curtain cover is arranged between the second sliding side frames, a first folding slide is arranged at one end of the first folding curtain cover, and a second folding slide is arranged at one end of the second folding curtain cover;

[0007] Retractable side frame and control frame, the two sides of the equipment frame are fixedly connected with the retractable side frames, the back bottom end of the equipment frame is fixedly connected with the control frame, the bottom end of the retractable side frame is fixedly connected with the transmission frame, the surface of the control frame is movably connected with the feeding sealing frame, the two end sides of the feeding sealing frame are provided with a first magnetic strip, the front of the feeding sealing frame is provided with a feeding connection cover, the bottom end of the feeding sealing frame is fixedly connected with a socket, the two ends of the socket are provided with a first contact switch, the surface of the control frame is provided with a socket slot, and the two ends of the inner wall of the socket slot are provided with a second contact switch.

[0008] Preferably, second magnetic strips are arranged on both sides of the surface of the control frame, a control groove is opened inside the control frame, and a cable groove is arranged on the front side of the control frame.

[0009] Preferably, a driving motor is provided at one end of the transmission frame, a transmission roller is movably connected inside the transmission frame through the driving motor, and reciprocating screw rods are provided at both ends of the transmission roller.

[0010] Preferably, the two groups of retractable side frames are internally movably connected with a retractable card frame, the sides of the retractable card frame are evenly provided with reduction sleeves, the bottom end of the retractable card frame is fixedly connected with a limiting slider, and the interior of the limiting slider is provided with a screw sleeve.

[0011] Preferably, a first arc-shaped bar seat is fixedly connected to the top of the first sliding side frame, a second arc-shaped bar seat is fixedly connected to the side of the second sliding side frame, and an air control valve is provided at one end of the first arc-shaped bar seat and the second arc-shaped bar seat close to each other.

[0012] Preferably, shrinkage airbags are provided inside the first arc-shaped bar seat and the second arc-shaped bar seat, and the bottom ends of the shrinkage airbags are fixedly connected to top strip plates.

[0013] Preferably, the top and side surfaces of the diverter seat are both provided with gas uniformity valves, and the first sliding side frame and the second sliding side frame are both provided with limiting grooves inside.

[0014] Preferably, both ends of the first folding slide and the second folding slide are provided with a driving motor, one end of the driving motor is provided with a driving gear, and one end of the driving gear is provided with a limiting ball.

[0015] Preferably, the first folding slide and the second folding slide are respectively matched with the first folding curtain cover and the second folding curtain cover.

[0016] Preferably, a first button is provided at both ends of the retractable side frame, a second button is provided on both sides of one end of the equipment frame, and a third button is provided at both ends of the control frame, and the first button, the second button and the third button are adapted and connected to each other through transmission lines.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The three-roller machine with multiple protection functions can enable the equipment to perform a comprehensive covering and protection three-roller machine operation through the equipment frame, three-roller unit, diverter seat, first sliding side frame, second sliding side frame, sliding rack, air uniforming pipe frame, air control pump, first folding curtain cover, second folding curtain cover, first folding slide, second folding slide, first arc-shaped strip seat, second arc-shaped strip seat, air control valve, contraction air bag, top strip plate, air uniforming valve, limit groove, drive motor, drive gear and limit ball. In actual use, the staff first starts the three-roller unit inside the equipment frame, and then performs roller grinding operation through the internal mechanical structure of the three-roller unit. At this time, the first folding curtain cover structure that is fully unfolded on the side and bottom of the air uniforming pipe frame can perform the overall covering and protection operation of the three-roller unit inside the equipment frame, so that it provides a more solid and stable comprehensive shielding and protection operation for the three-roller unit inside the equipment frame. The first folding curtain cover and the second folding curtain cover are made of high-strength metal material and completely cover The three-roller unit and related transmission parts are covered. The first folding curtain cover and the second folding curtain cover should have good sealing properties to prevent materials and debris from flying out. The first folding curtain cover and the second folding curtain cover have simple structures and low costs. This design helps prevent materials from splashing during the grinding process, while protecting operators from being hurt by splashing materials. It can effectively prevent operators from directly contacting the three rollers. The three-roller safety protection system of the extrusion line is designed to provide comprehensive safety protection for operators to prevent accidents during equipment operation and maintenance. The system will comprehensively use mechanical protection, electrical control and monitoring technology to ensure the safe operation of the equipment. In terms of protection effect, the intelligent protection system performs relatively well and can achieve more accurate and timely protection. Multiple protection functions effectively protect the safety of operators and reduce the occurrence of work-related accidents. The three-roller machine with multiple protection functions performs well in improving equipment safety and durability. It is suitable for various occasions requiring fine grinding, which reflects the practicality of equipment design.

[0019] The three-roller machine with multiple protection functions further improves the overall use effect of the equipment through the equipment frame, retracting side frame, control frame, transmission frame, feeding sealing frame, first magnetic strip, feeding connection cover, socket, first contact switch, socket slot, second contact switch, second magnetic strip, control slot, cable tray, drive motor, transmission roller, reciprocating screw, retracting card frame, reduction card sleeve, limit slider, screw rod sleeve, first button, second button and third button. In daily use, the docking design of the transmission frame and the feeding sealing frame in the equipment realizes automatic control, and a control device inside the lockable control frame is opened, which can be opened only after the equipment is shut down and locked for maintenance and repair, thereby reducing the influence of human factors and being able to intervene in advance before danger occurs. Multiple emergency stop buttons are set on the equipment operation panel and in prominent positions around it. The button ensures that the operator can press it quickly in an emergency. The first, second and third buttons respond quickly. When an accident occurs, it is convenient to perform emergency shutdown operations at the first time to ensure the safety of personnel and the surrounding environment, avoid other people approaching the equipment, and prevent secondary injuries. It can quickly shut down in an emergency to reduce accident losses. The operating speed of the three-roller unit is interlocked with the material conveying speed. When the material conveying is abnormal, the three-roller automatically slows down or stops. In terms of reliability, simple electrical protection devices such as emergency stop buttons are relatively reliable. The emergency control of the three-roller machine involves emergency shutdown operations, safe operating procedures, and emergency response measures. Operators should strictly abide by these regulations and measures to ensure the safe operation of the equipment and the safety of personnel, which reflects the comprehensiveness of the equipment design. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional schematic diagram of the structure of the present invention;

[0021] Figure 2 It is an overall schematic diagram of the equipment rack structure of the present invention;

[0022] Figure 3 It is an overall schematic diagram of the first sliding side frame structure of the present invention;

[0023] Figure 4 It is a schematic diagram of the structure of the first folding slide and the second folding slide of the present invention;

[0024] Figure 5 Schematic diagram of the structure of the first curved strip seat and the second curved strip seat of the present invention;

[0025] Figure 6 It is an overall schematic diagram of the retractable side frame structure of the present invention;

[0026] Figure 7 It is an overall schematic diagram of the transmission frame structure of the present invention;

[0027] Figure 8 It is an overall schematic diagram of the feeding and sealing frame structure of the present invention;

[0028] Fig. 9 It is an overall schematic diagram of the control frame structure of the present invention;

[0029] Fig.10 For the present invention Figure 1 A magnified schematic diagram of the structure at center A;

[0030] Fig.11 For the present invention Figure 1 A magnified schematic diagram of the structure at B in the figure.

[0031] In the figure: 1, equipment frame; 2, three-roller unit; 3, diverter seat; 4, first sliding side frame; 5, second sliding side frame; 6, sliding rack; 7, air-distributing pipe frame; 8, air control pump; 9, first folding curtain cover; 10, second folding curtain cover; 11, first folding slide; 12, second folding slide; 13, retracting side frame; 14, control frame; 15, transmission frame; 16, feeding sealing frame; 17, first magnetic strip; 18, feeding connection cover; 19, socket; 20, first contact switch; 21, socket slot; 22, second contact switch; 2 3. Second magnetic strip; 24. Control slot; 25. Cable slot; 26. Drive motor; 27. Transmission roller; 28. Reciprocating screw; 29. ​​Contraction bracket; 30. Speed ​​reduction sleeve; 31. Limit slider; 32. Screw sleeve; 33. First arc strip seat; 34. Second arc strip seat; 35. Air control valve; 36. Contraction airbag; 37. Top strip plate; 38. Air uniformity valve; 39. Limit slot; 40. Drive motor; 41. Drive gear; 42. Limit ball; 43. First button; 44. Second button; 45. Third button. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] See also Figure 1-Figure 11 , an embodiment provided by the present invention:

[0034] A three-roller machine with multiple protection functions comprises an equipment frame 1, a three-roller machine set 2 is arranged inside the equipment frame 1, a diverter seat 3 is fixedly connected to the corners on both sides of the equipment frame 1, a first sliding side frame 4 is fixedly connected to one side of the diverter seat 3, a second sliding side frame 5 is fixedly connected to the bottom end of the diverter seat 3, a sliding rack 6 is arranged on the inner wall of the first sliding side frame 4 and the second sliding side frame 5, an air-uniform pipe frame 7 is arranged between the two groups of diverter seats 3, an air-control pump 8 is arranged at one end of the air-uniform pipe frame 7, a first folding curtain cover 9 is arranged between the two groups of first sliding side frames 4, a second folding curtain cover 10 is arranged between the second sliding side frames 5, and the first folding curtain cover A first folding slide 11 is provided at one end of 9, a second folding slide 12 is provided at one end of the second folding curtain cover 10, a first arc strip seat 33 is fixedly connected to the top of the first sliding side frame 4, a second arc strip seat 34 is fixedly connected to the side of the second sliding side frame 5, an air control valve 35 is provided at one end of the first arc strip seat 33 and the second arc strip seat 34 close to each other, a shrink air bag 36 is provided inside the first arc strip seat 33 and the second arc strip seat 34, and a top strip plate 37 is fixedly connected to the bottom end of the shrink air bag 36, a uniform air valve 38 is provided at the top and side of the diverter seat 3, and the first sliding side frame 4 and the second sliding side frame 5 are provided with a plurality of air control valves. A limiting groove 39 is provided inside each of the first folding slide 11 and the second folding slide 12, both ends of which are provided with a driving motor 40, one end of which is provided with a driving gear 41, and one end of which is provided with a limiting ball 42, the first folding slide 11 and the second folding slide 12 are respectively adapted to the first folding curtain cover 9 and the second folding curtain cover 10, both ends of the retracting side frame 13 are provided with a first button 43, both sides of one end of the equipment frame 1 are provided with a second button 44, and both ends of the control frame 14 are provided with a third button 45, and the first button 43, the second button 44 and the third button 45 are connected by transmission wires. They are mutually adaptable and connected, and through the first folding curtain cover 9 structure that is fully unfolded on the side and bottom of the air uniforming pipe frame 7, the overall covering and protection operation of the three-roller unit 2 inside the equipment frame 1 can be performed. On a daily basis, the driving motors 40 at both ends of the first folding slide 11 and the second folding slide 12 can be started to make the driving gear 41 at one end and the limiting ball 42 along the sliding rack 6 on the inner wall of each first sliding side frame 4 and the second sliding side frame 5 to perform adaptive meshing and rotation adjustment operations, thereby quickly realizing the folding and adjustment operations of the first folding curtain cover 9 and the second folding curtain cover 10 inside the first folding slide 11 and the second folding slide 12.

[0035] The retractable side frame 13 and the control frame 14 are fixedly connected to the retractable side frames 13 on both sides of the equipment frame 1, the back bottom of the equipment frame 1 is fixedly connected to the control frame 14, the bottom end of the retractable side frame 13 is fixedly connected to the transmission frame 15, the surface of the control frame 14 is movably connected to the feeding sealing frame 16, the two end sides of the feeding sealing frame 16 are provided with a first magnetic strip 17, the front of the feeding sealing frame 16 is provided with a feeding cover 18, the bottom end of the feeding sealing frame 16 is fixedly connected to the socket 19, and the two ends of the socket 19 are provided with a first contact switch 20, and the control frame 14 is movably connected to the feeding sealing frame 16. The surface of the control frame 14 is provided with a plug-in slot 21, and the inner walls of the plug-in slot 21 are provided with second contact switches 22. The surface of the control frame 14 is provided with second magnetic strips 23 on both sides. The control frame 14 is provided with a control slot 24 inside. The front of the control frame 14 is provided with a cable groove 25. One end of the transmission frame 15 is provided with a drive motor 26. The transmission frame 15 is movably connected with a transmission roller 27 through the drive motor 26. The two ends of the transmission roller 27 are provided with reciprocating screw rods 28. The two sets of contraction side frames 13 are internally movably connected with the contraction side frames 13. The card frame 29, the side of the contraction card frame 29 is evenly provided with a reduction card sleeve 30, the bottom end of the contraction card frame 29 is fixedly connected to the limit slider 31, and the inner part of the limit slider 31 is provided with a screw sleeve 32, and the feeding sealing frame 16 is adapted to the second magnetic strip 23 on the surface of the control frame 14 through the first magnetic strips 17 on both sides. At this time, the feeding cover 18 of the feeding sealing frame 16 can be docked with one end of the three-roller unit 2 inside the equipment frame 1 for feeding operation, and the socket 19 at the bottom can be adapted to It is plugged into the plug-in slot 21 on the surface of the control frame 14, and the power-on control operation of the three-roller unit 2 inside the equipment frame 1 is performed through the contact between the first contact switch 20 and the second contact switch 22. When the control slot 24 inside the control frame 14 is subsequently inspected and repaired, the three-roller unit 2 is in a power-off state as a whole, ensuring the absolute safety of the maintenance personnel. In daily emergency situations, the first button 43 at the four corners of the top of the equipment and the second button 44 and the third button 45 at the four corners of the bottom can form a full-range emergency stop structure.

[0036] Working principle: When in use, the user first starts the three-roller unit 2 inside the equipment frame 1, and then performs roller grinding operations through the internal mechanical structure of the three-roller unit 2. At this time, the first folding curtain cover 9 structure that is fully unfolded on the side and bottom of the uniform air pipe frame 7 can be used to cover and protect the three-roller unit 2 inside the equipment frame 1. Daily, the driving motors 40 at both ends of the first folding slide 11 and the second folding slide 12 can be started to adaptively mesh and rotate along the sliding racks 6 on the inner walls of each first sliding side frame 4 and the second sliding side frame 5 through the driving gear 41 at one end and the limit ball 42, so as to quickly realize the first folding curtain cover 9 and the second folding curtain cover 10 on the first folding slide 11 and the second folding slide 12. The internal folding and adjusting operation facilitates the maintenance operation of the three-roller unit 2 inside the equipment frame 1 at any time. At the same time, the air control pump 8 at one end of the uniform air pipe frame 7 can be started daily to cooperate with the uniform air pipe frame 7 and the diverter seats 3 at both ends to make it synchronously inflate and discharge air from the uniform air valve 38 to the air control valve 35 at one end of the first arc strip seat 33 and the second arc strip seat 34, so that the shrink air bag 36 inside the first arc strip seat 33 and the second arc strip seat 34 can drive the top connecting strip plate 37 at one end to perform adaptive telescopic adjustment operation along the limiting groove 39 inside the first sliding side frame 4 and the second sliding side frame 5, and then the first folding curtain cover 9 and the second folding curtain cover 10 are integrally top-fixed and protected inside the first sliding side frame 4 and the second sliding side frame 5. , so that it provides a more solid and stable comprehensive shielding and protection operation for the three-roller unit 2 inside the equipment frame 1. The first folding curtain cover 9 and the second folding curtain cover 10 are made of high-strength metal materials, completely covering the three-roller unit 2 and related transmission components. The first folding curtain cover 9 and the second folding curtain cover 10 should have good sealing properties to prevent materials and debris from flying out. In daily use, the staff can use the first magnetic strips 17 on both sides of the feeding sealing frame 16 to perform adaptive magnetic fastening operations with the second magnetic strips 23 on the surface of the control frame 14. At this time, the feeding cover 18 of the feeding sealing frame 16 can be docked at one end of the three-roller unit 2 inside the equipment frame 1 for feeding operations, and the socket 19 at the bottom can be adaptively plugged into the control frame 1 4, through the contact between the first contact switch 20 and the second contact switch 22, the three-roller unit 2 in the equipment frame 1 is powered on as a whole. When the control slot 24 in the control frame 14 is subsequently repaired, the three-roller unit 2 is in a power-off state as a whole to ensure the absolute safety of the maintenance personnel. In daily emergency situations, the first button 43 at the four corners of the top of the equipment and the second button 44 and the third button 45 at the four corners of the bottom can form a full range of emergency stop structures, which is convenient for the staff to press the buttons with their hands or feet at the first time to perform the emergency stop operation of the equipment. At the same time, when the equipment is in emergency stop, the drive motor 26 at one end of the transmission frame 15 is started, and then drives the transmission roller 27 and the reciprocating screw rods 28 at both ends to rotate.The limit slider 31 and the screw sleeve 32 can be used to drive the shrinking brackets 29 in each of the two shrinking side frames 13 to move toward the center, so that the deceleration sleeve 30 of the shrinking bracket 29 can be connected and decelerated on both ends of the pressure rollers in the three-roller unit 2, ensuring that the equipment can perform a more efficient emergency stop operation. The above is the entire working principle of the present invention.

[0037] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A three-roller machine with multiple protection functions, comprising a device frame (1), characterized in that: A three-roller machine group (2) is arranged inside the equipment frame (1), a diverter seat (3) is fixedly connected to the corners on both sides of the equipment frame (1), a first sliding side frame (4) is fixedly connected to one side of the diverter seat (3), a second sliding side frame (5) is fixedly connected to the bottom end of the diverter seat (3), a sliding rack (6) is arranged on the inner walls of the first sliding side frame (4) and the second sliding side frame (5), an air-uniform pipe frame (7) is arranged between the two groups of the diverter seats (3), an air-controlling pump (8) is arranged at one end of the air-uniform pipe frame (7), a first folding curtain cover (9) is arranged between the two groups of the first sliding side frames (4), and a second folding curtain cover (9) is arranged between the two groups of the second sliding side frames (5). A cover (10), a first folding slide (11) is provided at one end of the first folding curtain cover (9), a second folding slide (12) is provided at one end of the second folding curtain cover (10), a first arc-shaped strip seat (33) is fixedly connected to the top of the first sliding side frame (4), a second arc-shaped strip seat (34) is fixedly connected to the side of the second sliding side frame (5), an air control valve (35) is provided at one end of the first arc-shaped strip seat (33) and the second arc-shaped strip seat (34) close to each other, a shrinkage air bag (36) is provided inside the first arc-shaped strip seat (33) and the second arc-shaped strip seat (34), and a top connecting strip plate (37) is fixedly connected to the bottom end of the shrinkage air bag (36); The equipment frame (1) comprises a retractable side frame (13) and a control frame (14), the two sides of the equipment frame (1) are fixedly connected with the retractable side frame (13), the back bottom end of the equipment frame (1) is fixedly connected with the control frame (14), the bottom end of the retractable side frame (13) is fixedly connected with the transmission frame (15), the surface of the control frame (14) is movably connected with a feeding sealing frame (16), the two end sides of the feeding sealing frame (16) are provided with a first magnetic attraction strip (17), the front of the feeding sealing frame (16) is provided with a feeding connection cover (18), the bottom end of the feeding sealing frame (16) is fixedly connected with a socket (19), and the two ends of the socket (19) are provided with a first A contact switch (20), a plug-in slot (21) is provided on the surface of the control frame (14), and second contact switches (22) are arranged at both ends of the inner wall of the plug-in slot (21), second magnetic strips (23) are arranged on both sides of the surface of the control frame (14), a control slot (24) is provided inside the control frame (14), a cable arrangement slot (25) is arranged on the front of the control frame (14), a driving motor (26) is arranged at one end of the transmission frame (15), a transmission roller (27) is movably connected to the transmission frame (15) through the driving motor (26), and reciprocating screw rods (28) are arranged at both ends of the transmission roller (27).

2. The three-roller machine with multiple protection functions according to claim 1 is characterized in that: The two groups of the shrinking side frames (13) are internally movably connected with a shrinking bracket (29), and the sides of the shrinking bracket (29) are evenly provided with reduction sleeves (30). The bottom end of the shrinking bracket (29) is fixedly connected with a limit slider (31), and the interior of the limit slider (31) is provided with a screw sleeve (32).

3. The three-roller machine with multiple protection functions according to claim 1 is characterized in that: The top and side surfaces of the flow divider seat (3) are both provided with a uniform gas valve (38), and the interiors of the first sliding side frame (4) and the second sliding side frame (5) are both provided with a limiting groove (39).

4. The three-roller machine with multiple protection functions according to claim 1 is characterized in that: Both ends of the first folding slide (11) and the second folding slide (12) are provided with a driving motor (40), one end of the driving motor (40) is provided with a driving gear (41), and one end of the driving gear (41) is provided with a limiting ball (42).

5. The three-roller machine with multiple protection functions according to claim 1 is characterized in that: The first folding slide (11) and the second folding slide (12) are respectively matched with the first folding curtain cover (9) and the second folding curtain cover (10).

6. The three-roller machine with multiple protection functions according to claim 1 is characterized in that: The two ends of the retractable side frame (13) are provided with a first button (43), the two sides of one end of the equipment frame (1) are provided with a second button (44), and the two ends of the control frame (14) are provided with a third button (45).

7. The three-roller machine with multiple protection functions according to claim 1 is characterized in that: The first button (43), the second button (44) and the third button (45) are adapted and connected to each other via a power transmission line.

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