Automatic cutting machine for polyisobutene high-viscosity material

Abstract

The invention relates to the technical field of cutting equipment, in particular to an automatic polyisobutene high-viscosity material cutting machine which comprises a fixing support, a tool rest is installed on the top of the fixing support, and a conveying and cutting assembly used for conveying and cutting a high-viscosity material is installed on the fixing support; the conveying and cutting assembly comprises a conveying belt and a polytetrafluoroethylene base plate installed on the inner side of the conveying belt, the conveying belt is of a triangular slope design, two conveying main shafts are installed at the top of the fixing support, a motor used for driving one conveying main shaft to rotate is fixedly connected to the top of the fixing support, and a hydraulic cylinder is installed on the tool rest. A tool bit assembly on the central axis of the conveying belt is installed at the output end of the hydraulic cylinder, and a heating device is installed in the tool bit assembly. The problems that according to existing cutting equipment, the cutting difficulty of high-viscosity materials is difficult to reduce, the cut materials are automatically separated, and therefore the cut materials are prevented from being bonded together again or bonded to a cutter are solved.

Description

Technical Field

[0001] The invention relates to the technical field of cutting equipment, in particular to an automatic cutting machine for polyisobutylene high-viscosity materials. Background Art

[0002] The production of pharmaceutical preparations requires the use of high-viscosity polymer materials. Such materials are viscous and have a certain toughness, which makes them inconvenient to cut. After searching, the patent with application number 202020770395.4 discloses a high-viscosity material cutting device. A liquid spray device is set to spray anti-adhesive liquid on the cut high-viscosity material to prevent the divided small pieces from sticking together into large pieces again.

[0003] When cutting high-viscosity materials, it is difficult for the cutting knife to cut into the material, making it difficult to cut the material and requiring a greater cutting force. During the cutting process, the material is easily stuck together again, requiring multiple cuts. In addition, the material is easily attached to the cutting tool, making it more difficult to clean the cutting tool later. When the material is cut again, the tool needs to be raised. During this process, the material stuck to the tool is easily dragged and moved. It is necessary to wait for the material to fall off the tool naturally, or for the staff to remove the material from the tool and then put the material back in its original position. This not only increases the risk of the material deviating from the cutting position, but the material handling process also increases the possibility of the staff being scratched by the tool. Summary of the invention

[0004] In view of the shortcomings of the prior art, the present invention provides an automatic cutting machine for polyisobutylene high-viscosity materials, which solves the problem that the existing cutting equipment is difficult to reduce the difficulty of cutting high-viscosity materials, and enables the cut materials to be automatically separated, thereby preventing the cut materials from sticking together again or sticking to the tool.

[0005] To achieve the above object, the present invention provides the following technical solutions: an automatic cutting machine for polyisobutylene high-viscosity materials, comprising a fixed bracket, a knife holder is installed on the top of the fixed bracket, and a conveying and cutting assembly for conveying and cutting high-viscosity materials is installed on the fixed bracket;

[0006] The conveying and cutting assembly includes a conveying belt and a polytetrafluoroethylene pad installed on the inner side of the conveying belt. The conveying belt is designed as a triangular slope. Two conveying spindles are installed on the top of the fixed bracket. The top of the fixed bracket is fixedly connected to a motor for driving one of the conveying spindles to rotate. A hydraulic cylinder is installed on the tool holder. The tool holder and the hydraulic cylinder are fully covered with stainless steel as a whole, so that the parts in contact with the material are made of 304 stainless steel and polytetrafluoroethylene. The conveying belt is made of pharmaceutical grade material to prevent contamination during the material cutting process. A cutter head assembly on the central axis of the conveying belt is installed at the output end of the hydraulic cylinder, and a heating device is installed in the cutter head assembly.

[0007] Preferably, the cutter head assembly includes a hyperbolic cutter head, and the hyperbolic cutter head includes a right frame, an insulation frame and a left frame. The left frame is composed of a side surface and a bottom of the hyperbolic cutter head. The right frame, the insulation frame and the left frame are welded to form a completed hyperbolic cutter head. A reinforcement rod is fixedly connected between the two sides of the inner wall of the hyperbolic cutter head, and a heating plate is fixedly connected to one side of the inner wall of the left frame.

[0008] Preferably, an outer frame is sleeved on the top of the hyperbolic cutter head, the output end of the hydraulic cylinder is fixedly connected to the outer frame, slots are provided on both sides of the hyperbolic cutter head, and blocks with one end movably extending into the slot are provided on both sides of the inner wall of the outer frame.

[0009] Preferably, the outer sleeve of the hyperbolic cutter head is provided with two insulation frames, the material of the insulation frame is elastic material, the bottom of the insulation frame close to the motor side is fixedly connected with an arc-shaped long plate, the bottom of the insulation frame away from the motor side is fixedly connected with an arc-shaped short plate, and the top of the insulation frame away from the motor side is fixedly connected with a stopper.

[0010] Preferably, the interior of the hyperbolic cutter head is provided with an exhaust pipe with one end movable through the hyperbolic cutter head, the exhaust pipe is installed on the side of the hyperbolic cutter head away from the motor and is fixedly connected to the hyperbolic cutter head, and the top of the outer frame is provided with a docking component with one end movably extending into the interior thereof, and the end of the docking component away from the outer frame is connected to a hose, and when the exhaust pipe is raised, the arc block is pushed to rise.

[0011] Preferably, the docking assembly includes a bending tube fixedly connected to the outer frame, the top of the exhaust pipe movably extends to the interior of the bending tube, a lifting plate is installed inside the bending tube, a circular ring for blocking the lifting plate from descending is fixedly connected to the interior of the bending tube, and a plurality of arc blocks movably penetrating the circular rings are fixedly connected to the bottom of the lifting plate.

[0012] Preferably, a plurality of supporting legs are installed at the bottom of the fixed bracket, and universal wheels are provided at the bottom of the supporting legs.

[0013] Preferably, a safety shield for wrapping the tool holder and conveying the cutting assembly is installed on the top of the fixed bracket, an opening is provided on one side of the safety shield, and two doors for covering the opening of the safety shield are slidably connected to one side of the safety shield.

[0014] Preferably, the top of the fixed bracket is fixedly connected to a support frame, a polytetrafluoroethylene pad is installed on the top of the support frame, and the conveyor belt movably passes through the support frame.

[0015] Preferably, the top of the insulation frame is provided with a longitudinal plate that movably passes through the tool holder, the top of the tool holder is fixedly connected with limit frames located on both sides of the longitudinal plate, one side of one of the limit frames is provided with a bolt that movably passes through the limit frame, and the top of the insulation frame is fixedly connected with a rubber strip.

[0016] Compared with the prior art, the present invention provides an automatic cutting machine for polyisobutylene high-viscosity materials, which has the following beneficial effects:

[0017] 1. Through the set conveying and cutting components, the heated cutter head components are used to reduce the difficulty of cutting high-viscosity materials, and the slope of the conveyor belt is used to automatically separate the cut materials to prevent the cut materials from sticking together again or sticking to the cutter.

[0018] 2. Through the setting of the cutter head assembly, since the electric heating plate only heats one side and the bottom of the hyperbolic cutter head, the heating speed is accelerated compared to heating the entire cutter head, and the cutter head can be heated to the appropriate temperature more quickly to cut high-viscosity materials. At the same time, since only the contact position between the cutter head and the material is heated, the heating power consumption is also reduced compared to heating the entire cutter head.

[0019] 3. The cutter head is set to a hyperbolic structure. When the high-viscosity material is cut by the hyperbolic cutter head, the material slides along the curvature of the surface of the hyperbolic cutter head. In this process, the material will turn outward, and the cut material will be pulled away from the hyperbolic cutter head by relying on the gravity of the outward curved part of the material, so that the cut material gradually moves away from the hyperbolic cutter head, reducing the possibility of the cut material sticking to the cutting knife during cutting.

[0020] 4. Through the setting of the outer frame, the hyperbolic cutter head can contact and heat the high-viscosity material in advance. When the hyperbolic cutter head has not yet risen to the appropriate temperature, the high-viscosity material can be heated by accumulating time until the hyperbolic cutter head rises to the appropriate temperature. The time before the hyperbolic cutter head is heated to the appropriate temperature is used to cut the high-viscosity material in advance, reducing the time required to wait for the hyperbolic cutter head to heat up.

[0021] 5. By setting up the heat insulation frame and the arc-shaped long plate, the residual heat on the surface of the hyperbolic cutter head can be collected after the material is cut, and the left frame of the hyperbolic cutter head can be covered at the same time, thereby reducing the heat loss rate on the left frame. When cutting again, the collected heat is used to heat the hyperbolic cutter head, which can shorten the time required for heating the hyperbolic cutter head before cutting the material, and improve the utilization of the residual heat after the hyperbolic cutter head is cut.

[0022] 6. Through the docking assembly, the air is automatically ejected during cutting to push the cut material away from the cutting knife, reducing the time waiting for the cut material to leave the cutting knife. It can also blow away the air and impurities inside the insulation frame to prevent the air inside the insulation frame from being stagnant for a long time and causing dust to settle. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 A partial cutaway view of the present invention as a whole;

[0026] Figure 3 is an internal cutaway view of a hyperbolic cutter head of the present invention;

[0027] Figure 4 It is a structural schematic diagram of the hyperbolic cutter head and the heat preservation frame of the present invention;

[0028] Figure 5 It is a schematic diagram of the internal structure of the docking assembly of the present invention;

[0029] Figure 6 It is a schematic diagram of the structure of the conveying and cutting assembly and the fixing bracket of the present invention;

[0030] Figure 7 It is a schematic structural diagram of the heat preservation frame and the longitudinal plate of the present invention;

[0031] Figure 8 This is a schematic diagram of the structure of the fixed bracket of the present invention installing the safety protection cover.

[0032] In the figure: 1. fixed bracket; 2. tool holder; 3. conveying and cutting assembly; 31. conveying belt; 32. PTFE pad; 33. conveying spindle; 34. motor; 35. hydraulic cylinder; 36. cutter head assembly; 361. hyperbolic cutter head; 362. reinforcement rod; 363. electric heater; 4. outer frame; 5. block; 6. insulation frame; 7. arc long plate; 8. arc short plate; 9. stopper; 10. exhaust pipe; 11. docking assembly; 111. bending pipe; 112. lifting plate; 113. ring; 114. arc block; 12. hose; 13. support leg; 14. safety shield; 15. warehouse door; 16. support frame; 17. longitudinal plate; 18. limit frame; 19. bolt; 20. rubber strip. DETAILED DESCRIPTION

[0033] The following will describe the implementation methods of the present application in detail with the help of accompanying drawings and examples, so that the implementation process of how the present application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0034] Polyisobutylene is a polymer made from isobutylene by cationic polymerization. Its molecular weight can range from hundreds to millions. It is a typical saturated linear polymer. The main body of the molecular chain does not contain double bonds and no long branches. In the production process of hot-melt adhesive patches, polyisobutylene is used as an auxiliary material. However, polyisobutylene is viscous and has a certain toughness, which makes it difficult to cut. Therefore, the cutting machine needs to be further optimized.

[0035] Embodiment 1

[0036] In order to solve the problem that high-viscosity materials are difficult to cut and easy to re-adhere after cutting, this embodiment designs a cutting structure to automatically separate the high-viscosity materials after cutting. Figure 1-Figure 3 An automatic cutting machine for polyisobutylene high-viscosity materials is proposed, which is composed of a fixed bracket 1, a knife holder 2 is installed on the top of the fixed bracket 1, a conveying and cutting assembly 3 for conveying and cutting high-viscosity materials is installed on the fixed bracket 1, and the conveying and cutting assembly 3 is composed of a conveying belt 31 and a polytetrafluoroethylene pad 32 installed on the inner side of the conveying belt 31. The conveying belt 31 is designed as a triangular slope. Two conveying spindles 33 are installed on the top of the fixed bracket 1. A motor 34 for driving one of the conveying spindles 33 to rotate is fixedly connected to the top of the fixed bracket 1. A hydraulic cylinder 35 is installed on the knife holder 2, and a passage for the hydraulic cylinder 35 to pass through is opened on the knife holder 2. A hole is formed at the through hole, and a sealing ring is arranged at the through hole position only for the hydraulic cylinder 35 to pass through. A cutter head assembly 36 on the central axis of the conveyor belt 31 is installed at the output end of the hydraulic cylinder 35. A heating device is installed in the cutter head assembly 36. The top of the fixed bracket 1 is fixedly connected with the support frame 16. The polytetrafluoroethylene pad 32 is installed on the top of the support frame 16. The conveyor belt 31 movably passes through the support frame 16. First, the high-viscosity material is placed on the conveyor belt 31 at one end close to the motor 34. The motor 34 drives the conveyor belt 31 to move, and then drives the high-viscosity material on the conveyor belt 31 to move until the position where the high-viscosity material needs to be cut moves to directly below the cutter head assembly 36.

[0037] The heating device inside the cutter head assembly 36 heats the cutter head assembly 36, and then the hydraulic cylinder 35 drives the cutter head assembly 36 to descend. The heated cutter head assembly 36 is easier to cut high-viscosity materials. Since the cutting position of the material is at the highest point of the triangular slope, the material cut by the cutter head assembly 36 approaches the slope on the right side until the bottom of the material is supported by the slope. In this process, the top end of the cut material gradually moves away from the cutter head assembly 36 until the cutter head assembly 36 cuts the material into two parts. The cut material on the right side of the cutter head assembly 36 slides down along the slope, and the heated cutter head assembly 36 is used to reduce the cutting of high-viscosity materials. The slope of the conveyor belt 31 is used to automatically separate the cut materials to prevent the cut materials from sticking together again or sticking to the tool. Then the hydraulic cylinder 35 drives the cutter head assembly 36 to rise, and the conveyor belt 31 drives the next cutting point of the high-viscosity material to move to just below the cutter head assembly 36. The cutter head assembly 36 repeats the cutting process of the high-viscosity material until all the positions that need to be cut are cut. Then the motor 34 and the hydraulic cylinder 35 stop working, and the staff removes the cut material from the conveyor belt 31, puts the new high-viscosity material back on the conveyor belt 31, and repeats the above process.

[0038] Since it takes a certain amount of time for the heating device to heat the cutter head assembly 36, after the equipment is started, it is necessary to wait for the cutter head assembly 36 to be heated to a suitable temperature before starting cutting. It takes a long time to heat the entire cutter head, and there is no need to heat the entire cutter head during cutting. In order to reduce the cutting of high-viscosity materials, it is only necessary to heat the bottom of the cutter head that is in contact with the part of the material to be cut. In order to prevent the cut material from sticking to the cutter head, since the cut material will move away from the cutter head along the slope of the conveyor belt 31, it is only necessary to heat the side of the cutter head assembly 36 close to the motor 34. Therefore, in order to reduce the waiting time for heating the cutter head assembly 36 and reduce the waste of electricity caused by unnecessary heating, the present embodiment optimizes the structure of the cutter head assembly 36 so that the cutter head assembly 36 can heat the position that needs to be heated to a suitable temperature more quickly. Specifically, the cutter head assembly 36 is composed of a hyperbolic cutter head 361, and the hyperbolic cutter head 361 is composed of a right frame, a heat insulation frame and a leftmost frame. It comprises a left frame with a side and a bottom, and a right frame, a heat-insulating frame and a left frame are welded to form a completed hyperbolic cutter head 361. A reinforcing rod 362 is fixedly connected between the two sides of the inner wall of the hyperbolic cutter head 361, and an electric heating plate 363 is fixedly connected to one side of the inner wall of the left frame. When the cutter head assembly 36 needs to be heated, the electric heating plate 363 is controlled to start working, and the electric heating plate 363 heats the left frame in direct contact with it. Since the heat-insulating frame separates the left frame and the right frame, the heat on the left frame cannot be directly transferred to the right frame. The electric heating plate 363 can only be used to heat the air inside the hyperbolic cutter head 361, and then the hot air gradually heats the right frame. Since the electric heating plate 363 only heats one side and the bottom of the hyperbolic cutter head 361, the heating speed is accelerated compared to heating the entire cutter head, and the cutter head can be heated to a suitable temperature more quickly to cut high-viscosity materials. At the same time, since only the contact position between the cutter head and the material is heated, the heating power consumption is also reduced compared to heating the entire cutter head.

[0039] Since the cutter head has a hyperbolic structure, when the high-viscosity material is cut by the hyperbolic cutter head 361, the material slides along the curvature of the surface of the hyperbolic cutter head 361. During this process, the material will turn outward, and the cut material will be pulled away from the hyperbolic cutter head 361 by relying on the gravity of the outwardly bent part of the material, so that the cut material gradually moves away from the hyperbolic cutter head 361, reducing the possibility of the cut material sticking to the cutting knife during cutting.

[0040] Embodiment 2

[0041] Since the equipment starts cutting materials soon after startup, in order to reduce the waiting time for heating the hyperbolic cutter head 361, the time left for heating the hyperbolic cutter head 361 is relatively short. Therefore, when the hyperbolic cutter head 361 starts cutting the material, there is a possibility that the hyperbolic cutter head 361 has not yet risen to a suitable temperature. In this way, it may be difficult to cut into the material at the beginning of cutting high-viscosity materials. Therefore, in order to ensure that the cutting knife can smoothly cut the material at the initial stage of cutting the material, the present embodiment improves the specific structure of the cutting knife so that the cutting knife can heat the material before cutting at the initial stage of cutting the material. Figure 1-Figure 4 On the basis of the first embodiment, the outer frame 4 is arranged on the top of the hyperbolic cutter head 361, the output end of the hydraulic cylinder 35 is fixedly connected to the outer frame 4, the hyperbolic cutter head 361 is movably extended to the inside of the outer frame 4, and the two sides of the hyperbolic cutter head 361 are provided with a card slot, and the inner wall of the outer frame 4 is provided with a card block 5 at one end of which is movably extended to the inside of the card slot. When the hyperbolic cutter head 361 is heated and cuts the material downward, the hyperbolic cutter head 361 slides downward along the outer frame 4 due to its own weight until the hyperbolic cutter head 361 slides to the bottom of the outer frame 4 and is The block 5 blocks the hyperbolic cutter head 361. When the hyperbolic cutter head 361 contacts the high-viscosity material below, the hyperbolic cutter head 361 is blocked by the high-viscosity material and stops descending, while the outer frame 4 is pushed by the hydraulic cylinder 35 to continue to descend. The outer frame 4 gradually approaches the hyperbolic cutter head 361. In this process, the hyperbolic cutter head 361 only presses against the high-viscosity material but does not push and cut into the material. The heated hyperbolic cutter head 361 gradually heats the high-viscosity material in the process of contacting the high-viscosity material. In this process, the electric heating plate 363 also continuously heats the hyperbolic cutter head 361.

[0042] Until the outer frame 4 is in close contact with the hyperbolic cutter head 361, the hydraulic cylinder 35 pushes the outer frame 4 and the hyperbolic cutter head 361 to descend at the same time, so that the hyperbolic cutter head 361 cuts into the high-viscosity material. Compared with directly installing the hyperbolic cutter head 361 on the hydraulic cylinder 35, an outer frame 4 is set between the hydraulic cylinder 35 and the hyperbolic cutter head 361, so that the hyperbolic cutter head 361 can contact and heat the high-viscosity material in advance, and the high-viscosity material can be heated by accumulating time when the hyperbolic cutter head 361 has not yet risen to a suitable temperature, until the hyperbolic cutter head 361 rises to a suitable temperature, the time before the hyperbolic cutter head 361 is heated to a suitable temperature is used to cut the high-viscosity material in advance, thereby reducing the time required to wait for the hyperbolic cutter head 361 to be heated.

[0043] Since the temperature of the hyperbolic cutter head 361 is still high after cutting, this part of the heat needs to be dissipated naturally, and the hyperbolic cutter head 361 will be reheated when cutting the material next time. This will result in a large degree of heat waste. In order to solve this problem, the present invention adds a heat collection structure for collecting the remaining heat on the hyperbolic cutter head 361 after the material cutting is completed. The heat collection structure is specifically composed of two insulation frames 6. The two insulation frames 6 cooperate with the top tool holder 2 to completely wrap the hyperbolic cutter head 361. The insulation frame 6 is made of elastic material. The bottom of the insulation frame 6 close to the motor 34 is fixedly connected to an arc-shaped long plate 7, and the bottom of the insulation frame 6 away from the motor 34 is fixedly connected to an arc-shaped short plate 8. The arc-shaped long plate 7 extends to a longer distance inside the insulation frame 6, and the arc-shaped short plate 8 extends to a shorter distance inside the insulation frame 6. A stopper 9 is fixedly connected to the top of the insulation frame 6 away from the motor 34. After the hyperbolic cutter head 361 has cut the high-viscosity material, the hydraulic cylinder 35 drives the outer frame 4 and the hyperbolic cutter head 361 to rise, and the outer frame 4 slides upward along the curvature of the arc-shaped long plate 7 and the arc-shaped short plate 8, pushing the two insulation frames 6 to rotate to both sides. The insulation frame 6 is squeezed and deformed to both sides by the outer frame 4 and the hyperbolic cutter head 361 until the hyperbolic cutter head 361 completely enters the insulation frame 6. At this time, the insulation frame 6 rotates back to the middle due to its own elastic force until the two insulation frames 6 are put together again to completely wrap the hyperbolic cutter head 361.

[0044] Then the hydraulic cylinder 35 drives the hyperbolic cutter head 361 to descend a certain distance until one side of the hyperbolic cutter head 361 is completely attached to the arc-shaped long plate 7. After the arc-shaped long plate 7 covers the left frame of the hyperbolic cutter head 361, the heat loss rate on the left frame is slowed down, while the heat in the right frame and the air inside the hyperbolic cutter head 361 is dissipated to the air inside the insulation frame 6. Due to the rising of hot air, most of the heat is concentrated in the upper half area inside the insulation frame 6. When the hyperbolic cutter head 361 is needed to cut the material again, the hydraulic cylinder 35 first drives the outer frame 4 and the hyperbolic cutter head 361 to rise to the top of the insulation frame 6 until the outer frame 4 is blocked by the block 9, so that the hyperbolic cutter head 361 is fully in contact with the higher temperature air in the upper half area of ​​the insulation frame 6 for preheating. In this process, the electric heater 363 starts to The hyperbolic cutter head 361 is heated, and then the hydraulic cylinder 35 pushes the outer frame 4 and the hyperbolic cutter head 361 down. The hyperbolic cutter head 361 descends along the curvature of the arc-shaped long plate 7 and the arc-shaped short plate 8, pushing the two insulation frames 6 to rotate and unfold to both sides until the outer frame 4 and the hyperbolic cutter head 361 are completely moved to the outside of the insulation frame 6. The hyperbolic cutter head 361 then continues to work to cut high-viscosity materials. After the material is cut, the residual heat on the surface of the hyperbolic cutter head 361 can be collected, and the left frame of the hyperbolic cutter head 361 can be covered at the same time, thereby reducing the heat loss rate on the left frame. When cutting again, the collected heat is used to heat the hyperbolic cutter head 361, which can shorten the time required for heating the hyperbolic cutter head 361 before cutting the material, and improve the utilization of the residual heat of the hyperbolic cutter head 361 after cutting.

[0045] Embodiment 3

[0046] Since the process of relying on the gravity of the cut material to pull it away from the cutting knife after bending is relatively slow, the distance between the cut material and the cutting knife after it is separated from the cutting knife is too close, and the bottom of the material is still gradually separating from the cutting knife. The cut material is still likely to be lifted by the cutting knife. Therefore, in order to ensure that the cut material is completely separated from the cutting knife, it is necessary to wait for a period of time until the cut material is completely separated from the cutting knife. The length of this waiting time is affected by the viscosity of the material and the roughness of the outer surface of the cutting knife after impurities are attached, and is uncertain. Therefore, in order to ensure that the cut material is separated from the cutting knife faster and reduce the time waiting for the material to separate from the cutting knife, this embodiment adds a structure for driving the cut material away from the cutting knife during the cutting process. Figure 1-Figure 5On the basis of the second embodiment, an exhaust pipe 10 with one end movably passing through the hyperbolic cutter head 361 is provided inside the hyperbolic cutter head 361, the exhaust pipe 10 is installed on the side of the hyperbolic cutter head 361 away from the motor 34, and is fixedly connected to the hyperbolic cutter head 361, and a docking assembly 11 with one end movably extending to the inside thereof is provided on the top of the outer frame 4, the docking assembly 11 is composed of a bent tube 111, the top of the exhaust pipe 10 can movably extend to the inside of the bent tube 111, and a lifting plate 1 is installed inside the bent tube 111 12. A circular ring 113 for preventing the lifting plate 112 from descending is fixedly connected inside the bending tube 111. A plurality of arc blocks 114 that movably penetrate the circular ring 113 are fixedly connected to the bottom of the lifting plate 112. The exhaust pipe 10 can push the arc block 114 to rise. A hose 12 is connected to the end of the docking assembly 11 away from the outer frame 4. The outside of the hose 12 is connected to a pneumatic pipeline for supplying air to the docking assembly 11. The air inside the docking assembly 11 is blocked by the lifting plate 112 and cannot be discharged from the bottom of the docking assembly 11.

[0047] When the outer frame 4 and the hyperbolic cutter head 361 gradually approach each other, that is, when the hyperbolic cutter head 361 squeezes the high-viscosity material or the insulation frame 6, the exhaust pipe 10 gradually enters the interior of the bending tube 111, and then the exhaust pipe 10 pushes the arc block 114 and the lifting plate 112 to rise, so that the lifting plate 112 no longer blocks the circular ring 113, and the lifting plate 112 is located at the bending part of the bending tube 111 after being raised, and cannot block the bending tube 111. The air inside the bending tube 111 passes through the circular ring 113 and enters the exhaust pipe 10, and then is ejected from the side of the hyperbolic cutter head 361 away from the motor 34. When the hyperbolic cutter head 361 cuts the high-viscosity material, the ejected airflow pushes the cut material to accelerate away from the hyperbolic cutter head 361. The curved cutter head 361 then moves along the slope of the conveyor belt 31 in the direction away from the hyperbolic cutter head 361, automatically sprays air during cutting, pushes the cut material away from the cutting knife, and reduces the time waiting for the cut material to leave the cutting knife; when the hyperbolic cutter head 361 squeezes the insulation frame 6, the ejected air flow blows toward the inside of the insulation frame 6, blows away the air and impurities inside the insulation frame 6, and prevents the air inside the insulation frame 6 from being stagnant for a long time and causing dust to settle. When the hyperbolic cutter head 361 is not working, the hyperbolic cutter head 361 is not close to the outer frame 4. At this time, the lifting plate 112 falls on the ring 113, so that the gas is blocked inside the docking assembly 11 and cannot be sprayed.

[0048] Embodiment 4

[0049] Since the heat preservation frame 6 rotates back and forth and collides with the tool holder 2, the top of the heat preservation frame 6 is prone to wear. After wear, a gap will appear between the heat preservation frame 6 and the tool holder 2, and the heat inside the heat preservation frame 6 is easy to dissipate from the gap. In order to ensure the sealing performance of the heat preservation frame 6, the structure of the heat preservation frame 6 is improved in this embodiment. Figure 1-Figure 7A longitudinal plate 17 that movably penetrates the tool holder 2 is provided on the top of the insulation frame 6, and a limit frame 18 located on both sides of the longitudinal plate 17 is fixedly connected to the top of the tool holder 2. A bolt 19 that movably penetrates the limit frame 18 is provided on one side of one of the limit frames 18. A rubber strip 20 is fixedly connected to the top of the insulation frame 6. When it is necessary to improve the sealing between the insulation frame 6 and the tool holder 2, the staff pulls the longitudinal plate 17 upward, thereby driving the insulation frame 6 to rise until the insulation frame 6 squeezes the rubber strip 20 under the tool holder 2 and deforms it, so that the insulation frame 6 is tightly attached to the bottom of the tool holder 2, and then the staff rotates the bolt 19 until the bolt 19 is pressed against the longitudinal plate 17, fixes the longitudinal plate 17 on the limit frame 18, completes the adjustment and fixation of the position of the insulation frame 6, and eliminates the gap between the insulation frame 6 and the tool holder 2.

[0050] Embodiment 5

[0051] In order to improve the convenience and safety of the cutting device when in use, this embodiment adds a structure that enables the device to be moved and protects the device when in use. Figure 1-Figure 8 On the basis of the first embodiment, a plurality of supporting legs 13 are installed at the bottom of the fixed bracket 1, and a universal wheel is arranged at the bottom of the supporting legs 13. In order to facilitate the adjustment of the height of the automatic polyisobutylene cutter, the supporting legs 13 can adopt an electric telescopic rod for easy lifting and lowering, so as to adapt to the height requirements of different operating rooms and reduce the difficulty of loading materials.

[0052] A safety shield 14 for wrapping the knife holder 2 and the conveying cutting assembly 3 is installed on the top of the fixed bracket 1. An opening is provided on one side of the safety shield 14. Two doors 15 for covering the openings of the safety shield 14 are slidably connected to one side of the safety shield 14. The doors 15 are connected to the operating system of the equipment. The safety shield 14 is made of transparent PC material, which has good impact resistance, high temperature resistance, corrosion resistance and good flame retardancy. The transparent shield is convenient for observing the cutting status and handling of emergencies. In addition, the safety shield 14 is connected to the power-off control switch to ensure that the operating system automatically powers off for protection when the doors 15 are opened.

[0053] On this basis, a double anti-misoperation safety lock is designed to ensure various abnormal situations that occur during the operation.

[0054] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic cutting machine for polyisobutylene high-viscosity materials, comprising a fixed bracket (1), characterized in that: A knife holder (2) is installed on the top of the fixed bracket (1), and a conveying and cutting assembly (3) for conveying and cutting high-viscosity materials is installed on the fixed bracket (1); The conveying and cutting assembly (3) comprises a conveying belt (31) and a polytetrafluoroethylene pad (32) installed on the inner side of the conveying belt (31); the conveying belt (31) is designed as a triangular slope; two conveying spindles (33) are installed on the top of the fixed bracket (1); a motor (34) for driving one of the conveying spindles (33) to rotate is fixedly connected to the top of the fixed bracket (1); a hydraulic cylinder (35) is installed on the tool holder (2); a cutter head assembly (36) on the central axis of the conveying belt (31) is installed at the output end of the hydraulic cylinder (35); a heating device is installed in the cutter head assembly (36).

2. The cutting machine according to claim 1, characterized in that: The cutter head assembly (36) comprises a hyperbolic cutter head (361), the hyperbolic cutter head (361) comprises a right frame, a heat insulation frame and a left frame, the left frame is composed of a side surface and a bottom of the hyperbolic cutter head (361), the right frame, the heat insulation frame and the left frame are welded to form a completed hyperbolic cutter head (361), reinforcement rods (362) are fixedly connected between the two sides of the inner wall of the hyperbolic cutter head (361), and a heating plate (363) is fixedly connected to one side of the inner wall of the left frame.

3. The cutting machine according to claim 2, characterized in that: An outer frame (4) is sleeved on the top of the hyperbolic cutter head (361), the output end of the hydraulic cylinder (35) is fixedly connected to the outer frame (4), both sides of the hyperbolic cutter head (361) are provided with a card slot, and both sides of the inner wall of the outer frame (4) are provided with a card block (5) with one end movably extending into the inside of the card slot.

4. The cutting machine according to claim 2, characterized in that: The outer sleeve of the hyperbolic cutter head (361) is provided with two insulation frames (6), the insulation frames (6) are made of elastic material, the bottom of the insulation frame (6) close to the motor (34) is fixedly connected with an arc-shaped long plate (7), the bottom of the insulation frame (6) away from the motor (34) is fixedly connected with an arc-shaped short plate (8), and the top of the insulation frame (6) away from the motor (34) is fixedly connected with a stopper (9).

5. The cutting machine according to claim 2, characterized in that: An exhaust pipe (10) having one end that movably passes through the hyperbolic cutter head (361) is provided inside the hyperbolic cutter head (361); the exhaust pipe (10) is installed on a side of the hyperbolic cutter head (361) away from the motor (34) and is fixedly connected to the hyperbolic cutter head (361); a docking assembly (11) having one end that movably extends into the interior of the outer frame (4) is provided on the top of the outer frame (4); and an end of the docking assembly (11) that is away from the outer frame (4) is connected to a hose (12).

6. The cutting machine according to claim 5, characterized in that: The docking assembly (11) comprises a bending tube (111) fixedly connected to the outer frame (4); the top of the exhaust pipe (10) movably extends to the inside of the bending tube (111); a lifting plate (112) is installed inside the bending tube (111); a circular ring (113) for blocking the lifting plate (112) from descending is fixedly connected inside the bending tube (111); and a plurality of arc blocks (114) movably penetrating the circular ring (113) are fixedly connected to the bottom of the lifting plate (112).

7. The cutting machine according to claim 1, characterized in that: A plurality of support legs (13) are installed at the bottom of the fixed bracket (1), and universal wheels are arranged at the bottom of the support legs (13).

8. The cutting machine according to claim 1, characterized in that: A safety shield (14) for wrapping the knife holder (2) and the conveying cutting assembly (3) is installed on the top of the fixed bracket (1), an opening is provided on one side of the safety shield (14), and two doors (15) for covering the opening of the safety shield (14) are slidably connected to one side of the safety shield (14).

9. The cutting machine according to claim 1, characterized in that: The top of the fixed bracket (1) is fixedly connected to a support frame (16), a polytetrafluoroethylene pad (32) is installed on the top of the support frame (16), and a conveying belt (31) movably passes through the support frame (16).

10. The cutting machine according to claim 4, characterized in that: The top of the heat preservation frame (6) is provided with a longitudinal plate (17) that movably passes through the tool holder (2); the top of the tool holder (2) is fixedly connected with limit frames (18) located on both sides of the longitudinal plate (17); one side of one of the limit frames (18) is provided with a bolt (19) that movably passes through the limit frame (18); and the top of the heat preservation frame (6) is fixedly connected with a rubber strip (20).

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