Annular corrugated pipe flaring mechanism

Abstract

The annular corrugated pipe flaring mechanism comprises a machine table, a sliding groove is formed in the left side of the top face of the machine table, a pipe placing frame is fixed to the right side of the top face of the machine table, four limiting rods are fixed to the bottom end of the interior of the pipe placing frame, and a pipe falling prevention assembly is arranged at the bottom end of the interior of the machine table. The pipe falling prevention assembly comprises two ring frames, the two ring frames are fixed to the bottom end of the interior of the machine table and located on the right side of the interior of the machine table, electric telescopic rods are fixedly installed on the inner walls of the two ring frames, a vertical plate is fixed to the left side of the telescopic end of each electric telescopic rod, and a round roller is rotationally installed on the bottom face of each vertical plate. According to the annular corrugated pipe flaring device, the arc-shaped supporting plate slides rightwards below the annular corrugated pipe, and therefore the problem that flaring deformation of the annular corrugated pipe is caused by falling and deviation of a port of the annular corrugated pipe is solved.

Description

Technical Field

[0001] The invention relates to the technical field of expansion, in particular to an annular bellows expansion mechanism. Background Art

[0002] The main function of the annular bellows expansion mechanism is to expand the diameter of the end of the annular bellows. The expansion process not only improves the connection performance of the bellows, but also significantly improves its sealing effect, thereby improving the overall product quality and reliability.

[0003] The patent with patent number CN220329791U discloses a steel strip corrugated pipe expanding device, including a machine base, a support leg is fixedly connected to the lower end of the machine base, a clamping assembly is arranged at the upper end of the machine base, the clamping assembly contacts the steel strip corrugated pipe, a heating assembly is arranged on the machine base, the heating assembly is slidably connected to the steel strip corrugated pipe, a support seat is fixedly connected to the machine base, a hydraulic cylinder is arranged on the support seat, a mounting seat is fixedly connected to the hydraulic rod of the hydraulic cylinder, a expanding mold is slidably connected to the mounting seat, by turning the handle, the turntable will drive the screw connected to the thread in the fixed table to rotate and move to the right, so that the screw is transmitted through the rod sleeve, so that the limit plate moves to the right, when the limit plate completely contacts the steel strip corrugated pipe, stop turning the handle, at this time, the steel strip corrugated pipe is limited by the limit plate in the horizontal direction, avoiding the situation that the steel strip corrugated pipe moves to the left when expanding the hole.

[0004] However, the current steel strip corrugated pipe expanding device has the following problems: when the steel strip corrugated pipe expanding device is in use, the port of the annular bellows is prone to fall due to the action of gravity when the annular bellows is expanding, which causes the port of the annular bellows to fall and deviate, resulting in the problem of expansion deformation of the annular bellows. Therefore, we propose an annular bellows expanding mechanism. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides an annular bellows expansion mechanism, which solves the problems raised in the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: an annular bellows expansion mechanism, comprising a machine platform, a slide groove is provided on the left side of the top surface of the machine platform, a pipe placing rack is fixed on the right side of the top surface of the machine platform, four limit rods are fixed at the bottom end of the inner part of the pipe placing rack, and a pipe falling prevention component is provided at the inner bottom end of the machine platform; The anti-pipe fall assembly includes two ring frames, the two ring frames are fixed at the inner bottom end of the machine platform, the two ring frames are located on the right side of the machine platform, the inner walls of the two ring frames are fixedly installed with electric telescopic rods, a vertical plate is fixed on the left side of the telescopic end of the electric telescopic rod, a round roller is rotatably installed on the bottom surface of the vertical plate, the round roller is located at the inner bottom end of the machine platform, the outer wall of the vertical plate is slidably connected with the inner wall of the slide groove of the machine platform, a flat cone shell is fixed on the top right side of the vertical plate, and resistance heaters are fixedly installed on the left and right sides of the inner wall of the flat cone shell, a straight rod is fixed on the top right side of the vertical plate, and the straight rod is located at the bottom of the flat cone shell A spring is fixed on the top right side of the vertical plate, and the spring is sleeved on the outer wall of the straight rod. An arc-shaped support plate is slidably installed on the right side of the outer wall of the straight rod. The bottom left side of the arc-shaped support plate is fixedly connected to the end of the spring away from the vertical plate. The flat cone shell enters the port of the annular bellows. Under the high temperature and extrusion of the flat cone shell, the port of the annular bellows begins to expand, and the arc-shaped support plate slides to the right under the annular bellows. When the flat cone shell expands the port of the annular bellows, the arc-shaped support plate is supported under the annular bellows to prevent the port of the annular bellows from falling. An anti-shake component is arranged on the top left side of the vertical plate; The anti-shake assembly includes an L-shaped plate, which is fixed to the top of the left side of the vertical plate. A thin rod is rotatably installed through the left side of the front of the L-shaped plate. Two rubber rollers are fixed to the outer wall of the thin rod. The two rubber rollers are located on the front and back of the L-shaped plate. When the rubber rollers move to the right, the rubber rollers roll on the machine table under the action of friction, thereby reducing the shaking of the vertical plate when it moves to the right. The top of the left side of the L-shaped plate is provided with an anti-deformation device, and the side of the anti-deformation devices away from each other is provided with an anti-retraction device.

[0007] According to the above technical solution, the four limit rods are located on the right side inside the pipe rack, the four limit rods are stuck in the intervals of the corrugated tubes, the top left side of the pipe rack is on the movement trajectory of the arc-shaped support plate, and the outer walls of the two rubber rollers are in contact with the top surface of the machine.

[0008] According to the above technical scheme, the anti-deformation device includes two U-shaped oblique rods, a circular ring, four connecting plates, four short rods and a ring plate. The two U-shaped oblique rods are fixed at the top left side of the L-shaped plate, and the two U-shaped oblique rods are located on the front and back of the vertical plate. The circular ring is fixed on the right side of the two U-shaped oblique rods. The circular ring is located on the right side of the outer wall of the flat cone shell. The four connecting plates are fixed on the circular ring. The four short rods are respectively fixed on the right sides of the four connecting plates. The ring plate is fixed on the side where the four short rods are close to each other. When the port of the annular bellows is deformed and expanded, the ring plate is against the port wall of the annular bellows, and the ring plate limits the expanded diameter of the port of the annular bellows, so that the expanded diameter of the port of the annular bellows is uniformly sized.

[0009] According to the above technical scheme, the anti-deformation device also includes two annular straight plates, two arc-shaped spring pieces and two chamfered blocks. The two annular straight plates are respectively fixed on the outer walls of the two U-shaped oblique rods, and the two annular straight plates are located on the front and back sides of the flat cone shell. The two arc-shaped spring pieces are respectively embedded in the bottom surfaces of the two annular straight plates. The two chamfered blocks are respectively fixed at one end of the two arc-shaped spring pieces away from the two annular straight plates. The bottom surfaces of the two chamfered blocks are in sliding contact with the top surface of the machine. The chamfers of the chamfered blocks scrape off foreign matter accumulated on the machine, so that when the rubber roller moves to the right, there will be no foreign matter accumulated on the machine.

[0010] According to the above technical solution, the ring plate is located on the right side of the circular ring, chamfers are provided on the right sides of the two chamfered blocks, and the two chamfered blocks are respectively located on the right sides of the two rubber rollers.

[0011] According to the above technical scheme, the anti-retraction device includes two L-shaped strips, two round rods, an arc plate and a semiconductor refrigeration plate. The two L-shaped strips are respectively fixed on the side of the two straight ring plates away from each other. The two round rods respectively penetrate and are fixed on the right side of the top surface of the two L-shaped strips. The arc plate is fixed on the top surface of the two round rods. The arc plate is located above the flat cone shell. The semiconductor refrigeration plate is fixedly installed on the bottom surface of the arc plate. The heat on the expanded mouth of the annular bellows is quickly cooled by the semiconductor refrigeration plate, allowing the expanded mouth of the annular bellows to be quickly cooled and shaped.

[0012] According to the above technical solution, the anti-retraction device also includes two short columns, two magnetic blocks and double baffles. The two short columns are respectively embedded in the middle of the bottom surfaces of the two L-shaped strips, and the two magnetic blocks are respectively fixed on the bottom surfaces of the two short columns. The double baffle is fixed on the right side of the top surface of the machine. The double baffle is located on the left side of the pipe rack. The magnetic blocks limit the depth of the flat cone shell so that the expansion depth of the annular corrugated pipe will not be too long.

[0013] According to the above technical solution, the semiconductor refrigeration plate is located above the ring plate, and the left side of the double-strip baffle is on the movement track of the two magnetic blocks.

[0014] The present invention provides an annular bellows expansion mechanism, which has the following beneficial effects: (1) The present invention uses a ring frame, an electric telescopic rod, a vertical plate, a round roller, a flat cone shell, a resistance heater, a straight rod, a spring, an arc-shaped support plate, an L-shaped plate and a thin rod in conjunction with a rubber roller. The flat cone shell enters the port of the annular bellows. Under the high temperature and extrusion of the flat cone shell, the port of the annular bellows begins to expand, and the arc-shaped support plate slides to the right under the annular bellows. When the flat cone shell expands the port of the annular bellows, the arc-shaped support plate is supported under the annular bellows to prevent the port of the annular bellows from falling, thereby preventing the port of the annular bellows from falling and deviating to cause the annular bellows to expand and deform. In addition, during the process of the rubber roller moving to the right, the rubber roller rolls on the machine table under the action of friction, thereby reducing the shaking of the vertical plate when moving to the right, thereby preventing the vertical plate from shaking violently and causing uneven expansion of the equipment.

[0015] (2) The present invention arranges an anti-deformation device so that the U-shaped oblique rod, circular ring, connecting plate, short rod, ring plate, straight ring plate and arc-shaped spring piece cooperate with the chamfering block. When the port of the annular bellows is deformed and expanded, the ring plate abuts against the port wall of the annular bellows, and the ring plate limits the expansion of the port of the annular bellows, so that the expansion of the port of the annular bellows is uniform in size, and the different expansion sizes of the annular bellows cause poor expansion effect of the equipment. In addition, the chamfer of the chamfering block scrapes away foreign matter accumulated on the machine table, so that when the rubber roller moves to the right, there will be no foreign matter accumulated on the machine table, and foreign matter on the machine table is prevented from blocking the smooth operation of the equipment.

[0016] (3) The present invention sets an anti-retraction device, so that the U-shaped inclined rod, circular ring, connecting plate, short rod, ring plate, straight ring plate and arc-shaped spring piece cooperate with the chamfering block, and the heat on the expanded opening of the annular bellows is quickly cooled by the semiconductor refrigeration plate, so that the expanded opening of the annular bellows can be quickly cooled and shaped, and the expansion shrinkage caused by slow shaping of the expanded opening of the annular bellows can be prevented. In addition, the magnetic block limits the depth of the flat cone shell, so that the expanded depth of the annular bellows will not be too long, and the expanded opening of the annular bellows will not meet the standard due to the excessive depth of the expanded opening of the annular bellows. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the present invention as a whole; Figure 2 It is a cross-sectional schematic diagram of the present invention as a whole; Figure 3 It is a cross-sectional schematic diagram of the machine platform of the present invention; Figure 4 For the present invention Figure 3 A local enlarged schematic diagram of the middle A; Figure 5 is a schematic diagram of the anti-deformation device of the present invention; Figure 6 For the present invention Figure 5 A partial enlarged schematic diagram of point B in the middle; Figure 7is a cross-sectional schematic diagram of the anti-retraction device of the present invention; Figure 8 For the present invention Figure 7 A partial enlarged schematic diagram of point C in the middle.

[0018] In the figure: 1, machine; 2, pipe rack; 3, limit rod; 21, anti-pipe falling assembly; 211, ring frame; 212, electric telescopic rod; 213, vertical plate; 214, round roller; 215, flat cone shell; 216, resistance heater; 217, straight rod; 218, spring; 219, arc-shaped support plate; 22, anti-shake assembly; 221, L-shaped plate; 222, thin rod; 223, rubber roller; 4, anti-deformation device; 41, U-shaped oblique rod; 42, circular ring; 43, connecting plate; 44, short rod; 45, ring plate; 46, straight ring plate; 47, arc-shaped spring piece; 48, chamfering block; 5, anti-retraction device; 51, L-shaped strip plate; 52, round rod; 53, arc plate; 54, semiconductor refrigeration plate; 55, short column; 56, magnetic block; 57, double strip baffle. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0020] See also Figure 1-Figure 8 One embodiment of the present invention is: an annular bellows expansion mechanism, comprising a machine table 1, a slide groove is provided on the left side of the top surface of the machine table 1, a tube rack 2 is fixed on the right side of the top surface of the machine table 1, four limit rods 3 are fixed on the bottom end of the tube rack 2, the four limit rods 3 are located on the right side of the tube rack 2, and the four limit rods 3 are stuck in the interval of the annular bellows; An anti-pipe falling assembly 21 is provided at the inner bottom end of the machine 1. The anti-pipe falling assembly 21 includes two ring frames 211. The two ring frames 211 are fixed to the inner bottom end of the machine 1. The two ring frames 211 are located on the right side of the machine 1. An electric telescopic rod 212 is fixedly installed on the inner wall of the two ring frames 211. A vertical plate 213 is fixed on the left side of the telescopic end of the electric telescopic rod 212. A round roller 214 is rotatably installed on the bottom surface of the vertical plate 213. The round roller 214 is located at the inner bottom end of the machine 1. The outer wall of the vertical plate 213 is slidably connected with the inner wall of the slide groove of the machine 1. A flat cone shell 215 is fixed to the top right side of the vertical plate 213. Resistance heaters 216 are fixedly installed on the left and right sides of the inner wall of the flat cone shell 215. A straight rod 217 is fixed to the top right side of the vertical plate 213. The straight rod 217 is located below the flat cone shell 215. A spring 218 is fixed to the top right side of the vertical plate 213. The spring 218 is sleeved on the outer wall of the straight rod 217, and an arc-shaped support plate 219 is slidably installed on the right side of the outer wall of the straight rod 217. The bottom of the left side of the arc-shaped support plate 219 is fixedly connected to the end of the spring 218 away from the vertical plate 213, and the top of the left side of the pipe rack 2 is on the movement track of the arc-shaped support plate 219. When the flat cone shell 215 moves to the right, the flat cone shell 215 enters the port of the annular bellows. Under the high temperature and extrusion of the flat cone shell 215, the port of the annular bellows begins to expand, and the arc-shaped support plate 219 slides to the right under the annular bellows. When the flat cone shell 215 expands the port of the annular bellows, the arc-shaped support plate 219 is supported under the annular bellows to prevent the port of the annular bellows from falling, so as to avoid the expansion deformation of the annular bellows caused by the port of the annular bellows falling and deflecting when the expansion mechanism expands the annular bellows. An anti-shake component 22 is set at the top left side of the vertical plate 213, and the anti-shake component 22 includes an L-shaped plate 221, which is fixed at the top left side of the vertical plate 213, and a thin rod 222 is penetrated and rotatably installed on the left side of the front side of the L-shaped plate 221, and two rubber rollers 223 are fixed on the outer wall of the thin rod 222, and the two rubber rollers 223 are located on the front and back sides of the L-shaped plate 221. The outer walls of the two rubber rollers 223 are in contact with the top surface of the machine 1. When the rubber rollers 223 move to the right, under the action of friction, the rubber rollers 223 roll on the machine 1, thereby reducing the shaking of the vertical plate 213 when it moves to the right, and avoiding the vertical plate 213 from shaking violently when the expanding mechanism expands the annular bellows, causing uneven expanding of the equipment.

[0021] When in use, the machine 1 supports the pipe rack 2, and the pipe rack 2 supports the limit rod 3. Since the end of the annular bellows is easy to fall down under the action of gravity when the annular bellows is expanded, when using the equipment, the staff places the annular bellows in the pipe rack 2, and the limit rod 3 is stuck in the interval of the annular bellows. The limit rod 3 limits the annular bellows. At the same time, the end of the annular bellows is placed on the arc-shaped support plate 219, and the machine 1 supports the ring frame 211, and the electric telescopic rod 212 in the ring frame 211 is started. The telescopic end of the electric telescopic rod 212 The electric telescopic rod 212 starts to move to the right, the telescopic end of the electric telescopic rod 212 drives the vertical plate 213 to move to the right, the vertical plate 213 drives the round roller 214 to move to the right, under the action of friction, the round roller 214 rolls to the right in the machine table 1, the vertical plate 213 moves to the right in the slide groove of the machine table 1, the vertical plate 213 drives the flat cone shell 215 to move to the right, the flat cone shell 215 drives the resistance heater 216 to move to the right, the resistance heater 216 is started, the resistance heater 216 starts to heat up, the resistance heater 216 transfers heat to the flat cone shell 215, and the flat cone shell 215 is turned on. In the process of moving to the right, the flat cone shell 215 enters the port of the annular bellows. Under the high temperature and extrusion of the flat cone shell 215, the port of the annular bellows begins to expand. When the vertical plate 213 moves to the right in the slide groove of the machine table 1, the vertical plate 213 drives the straight rod 217 to move to the right. At the same time, the vertical plate 213 drives the spring 218 to move to the right, and the straight rod 217 drives the arc support plate 219 to move to the right. The arc support plate 219 slides to the right under the annular bellows. In the process of the arc support plate 219 moving to the right, the arc support plate 219 contacts with the pipe rack 2. Under the action of the extrusion force, the straight rod 217 slides to the right in the arc-shaped support plate 219. The spring 218 on the arc-shaped support plate 219 begins to shrink, so that when the flat cone shell 215 expands the port of the annular bellows, the arc-shaped support plate 219 is supported under the annular bellows to prevent the port of the annular bellows from falling. This prevents the port of the annular bellows from falling when the equipment is in use, thereby avoiding the problem of the annular bellows being deformed due to the port of the annular bellows falling and deviating when the expanding mechanism expands the annular bellows.

[0022] When the vertical plate 213 moves to the right in the slide groove of the machine 1, the vertical plate 213 drives the L-shaped plate 221 to move to the right, the L-shaped plate 221 drives the thin rod 222 to move to the right, and the thin rod 222 drives the rubber roller 223 to move to the right, so that in the process of the rubber roller 223 moving to the right, under the action of friction, the rubber roller 223 rolls on the machine 1, reducing the shaking of the vertical plate 213 when moving to the right, thereby avoiding the problem of uneven expansion of the equipment caused by the violent shaking of the vertical plate 213 when the expansion mechanism expands the annular corrugated tube.

[0023] See also Figure 1-Figure 8On the basis of the above embodiment, another embodiment of the present invention further includes an anti-deformation device 4 and an anti-retraction device 5, wherein an anti-deformation device 4 is provided at the top left side of the L-shaped plate 221, and the anti-deformation device 4 includes two U-shaped oblique rods 41, a circular ring 42, four connecting plates 43, four short rods 44 and a circular plate 45, the two U-shaped oblique rods 41 are fixed to the top left side of the L-shaped plate 221, the two U-shaped oblique rods 41 are located at the front and back sides of the vertical plate 213, the circular ring 42 is fixed to the right side of the two U-shaped oblique rods 41, the circular ring 42 is located on the right side of the outer wall of the flat cone shell 215, and the four connecting plates 43 are fixed to the circular ring 42, The four short rods 44 are respectively fixed on the right side of the four connecting plates 43, and the ring plate 45 is fixed on the side where the four short rods 44 are close to each other. The ring plate 45 is located on the right side of the circular ring 42. When the flat cone shell 215 enters the port of the annular bellows, the ring plate 45 is sleeved on the port of the annular bellows. When the port of the annular bellows is deformed and expanded, the ring plate 45 rests on the port wall of the annular bellows. The ring plate 45 limits the expanded diameter of the port of the annular bellows, so that the expanded diameter of the port of the annular bellows is uniformly sized, thereby avoiding the poor expanding effect of the equipment caused by the different expansion sizes of the annular bellows when the expansion mechanism expands the annular bellows.

[0024] The anti-deformation device 4 also includes two straight ring plates 46, two arc-shaped spring pieces 47 and two chamfered blocks 48. The two straight ring plates 46 are respectively fixed on the outer walls of the two U-shaped inclined rods 41, and the two straight ring plates 46 are located on the front and back sides of the flat cone shell 215. The two arc-shaped spring pieces 47 are respectively embedded in the bottom surfaces of the two straight ring plates 46. The two chamfered blocks 48 are respectively fixed on one end of the two arc-shaped spring pieces 47 away from the two straight ring plates 46. The bottom surfaces of the two chamfered blocks 48 are in sliding contact with the top surface of the machine 1. Chamfers are provided on the right sides of the two chamfered blocks 48. The two chamfered blocks 48 are respectively located on the right sides of the two rubber rollers 223. When the chamfered blocks 48 move to the right, the chamfers of the chamfered blocks 48 scrape off foreign matter accumulated on the machine 1, so that when the rubber roller 223 moves to the right, there will be no foreign matter accumulated on the machine 1, so as to avoid foreign matter blocking the machine 1 when the expanding mechanism expands the annular bellows, causing the equipment to run unsmoothly.

[0025] An anti-retraction device 5 is provided on the side away from each other of the anti-deformation devices 4, and the anti-retraction device 5 includes two L-shaped strips 51, two round rods 52, an arc plate 53 and a semiconductor refrigeration plate 54. The two L-shaped strips 51 are respectively fixed on the side away from each other of the two straight ring plates 46, and the two round rods 52 respectively penetrate and are fixed on the right side of the top surface of the two L-shaped strips 51, and the arc plate 53 is fixed on the top surface of the two round rods 52. The arc plate 53 is located above the flat cone shell 215, and the semiconductor refrigeration plate 54 is fixedly installed on the bottom surface of the arc plate 53. The semiconductor refrigeration plate 54 is located above the ring plate 45. The heat on the expanded mouth of the annular bellows is quickly cooled by the semiconductor refrigeration plate 54, so that the expanded mouth of the annular bellows is quickly cooled and shaped, thereby avoiding the expansion shrinkage caused by the slow expansion and shaping of the annular bellows when the expanding mechanism is expanding the annular bellows.

[0026] The anti-retraction device 5 also includes two short columns 55, two magnetic blocks 56 and a double-strip baffle 57. The two short columns 55 are respectively embedded in the middle of the bottom surfaces of the two L-shaped strips 51, and the two magnetic blocks 56 are respectively fixed on the bottom surfaces of the two short columns 55. The double-strip baffle 57 is fixed on the right side of the top surface of the machine table 1. The double-strip baffle 57 is located on the left side of the tube rack 2. The left side of the double-strip baffle 57 is on the movement trajectory of the two magnetic blocks 56. The magnetic block 56 is in contact with the double-strip baffle 57. Under the magnetic force of the magnetic block 56, the magnetic block 56 is adsorbed on the double-strip baffle 57. The magnetic block 56 limits the depth of the flat cone shell 215, so that the expansion depth of the annular bellows will not be too long, so as to avoid the expansion depth of the annular bellows being too long when the expansion mechanism is expanding the annular bellows, resulting in the expansion of the annular bellows not meeting the standard.

[0027] When the vertical plate 213 drives the L-shaped plate 221 to move right, the L-shaped plate 221 drives the U-shaped oblique rod 41 to move right, the U-shaped oblique rod 41 drives the circular ring 42 to move right, the circular ring 42 drives the connecting plate 43 to move right, the connecting plate 43 drives the short rod 44 to move right, and the short rod 44 drives the annular plate 45 to move right. When the flat cone shell 215 enters the port of the annular bellows, the annular plate 45 is sleeved on the port of the annular bellows. When the port of the annular bellows is deformed and expanded, the annular plate 45 is against the port wall of the annular bellows, so that the annular plate 45 limits the expansion of the port of the annular bellows, so that the expansion of the port of the annular bellows is uniform in size, preventing the annular bellows from expanding to different sizes when the equipment is in use, thereby avoiding the problem of poor expansion effect of the equipment caused by the different expansion sizes of the annular bellows when the expansion mechanism expands the annular bellows.

[0028] While the L-shaped plate 221 drives the U-shaped inclined rod 41 to move rightward, the U-shaped inclined rod 41 drives the straight plate 46 to move rightward, the straight plate 46 drives the arc-shaped spring piece 47 to move rightward, and the arc-shaped spring piece 47 drives the chamfering block 48 to move rightward, so that when the chamfering block 48 moves to the rightward, the chamfer of the chamfering block 48 scrapes away the foreign matter accumulated on the machine table 1, so that when the rubber roller 223 moves to the rightward, there will be no foreign matter accumulated on the machine table 1, so as to prevent the equipment from being blocked by foreign matter on the machine table 1 when in use, thereby avoiding the problem of the equipment running not being smooth due to the foreign matter blocking the machine table 1 when the expanding mechanism expands the annular corrugated tube.

[0029] While the U-shaped inclined rod 41 drives the straight plate 46 to move right, the straight plate 46 drives the L-shaped strip plate 51 to move right, the L-shaped strip plate 51 drives the round rod 52 to move right, the round rod 52 drives the arc plate 53 to move right, and the arc plate 53 drives the semiconductor refrigeration plate 54 to move right. When the flat cone shell 215 completes the expansion of the annular bellows, the resistance heater 216 in the flat cone shell 215 is turned off. At the same time, the semiconductor refrigeration plate 54 is started and begins to cool, so that the heat on the expanded annular bellows is quickly cooled by the semiconductor refrigeration plate 54, allowing the expanded annular bellows to quickly cool and shape, preventing the annular bellows from expanding slowly when the equipment is in use, thereby avoiding the problem of expansion shrinkage caused by the expansion mechanism expanding the annular bellows slowly.

[0030] While the straight ring plate 46 drives the L-shaped strip plate 51 to move to the right, the L-shaped strip plate 51 drives the short column 55 to move, and the short column 55 drives the magnetic block 56 to move to the right. In the process of the magnetic block 56 moving to the right, the magnetic block 56 contacts the double-strip baffle 57. Under the magnetic force of the magnetic block 56, the magnetic block 56 is adsorbed on the double-strip baffle 57, so that the magnetic block 56 limits the depth of the flat cone shell 215, so that the expansion depth of the annular bellows will not be too long, preventing the expansion depth of the annular bellows from being too long when the equipment is in use, thereby avoiding the problem of the expansion depth of the annular bellows being too long when the expansion mechanism is expanding the annular bellows, causing the expansion of the annular bellows to fail to meet the standard.

[0031] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An annular bellows expansion mechanism, comprising a machine platform (1), a slide groove is provided on the left side of the top surface of the machine platform (1), and a tube placing rack (2) is fixed on the right side of the top surface of the machine platform (1), characterized in that: Four limiting rods (3) are fixed to the inner bottom end of the pipe rack (2), and a pipe falling prevention component (21) is provided at the inner bottom end of the machine platform (1); The pipe fall prevention assembly (21) comprises two ring frames (211), the two ring frames (211) are fixed to the inner bottom end of the machine platform (1), the two ring frames (211) are located on the right side of the machine platform (1), the inner walls of the two ring frames (211) are fixedly mounted with electric telescopic rods (212), the left side of the telescopic end of the electric telescopic rod (212) is fixed with a vertical plate (213), a round roller (214) is rotatably mounted on the bottom surface of the vertical plate (213), the round roller (214) is located at the inner bottom end of the machine platform (1), the outer wall of the vertical plate (213) is slidably connected to the inner wall of the slide groove of the machine platform (1), and a flat cone shell is fixed to the top of the right side of the vertical plate (213). (215), a resistance heater (216) is fixedly installed on the left and right sides of the inner wall of the flat cone shell (215), a straight rod (217) is fixed on the top right side of the vertical plate (213), the straight rod (217) is located below the flat cone shell (215), a spring (218) is fixed on the top right side of the vertical plate (213), the spring (218) is sleeved on the outer wall of the straight rod (217), an arc-shaped support plate (219) is slidably installed on the right side of the outer wall of the straight rod (217), the left bottom of the arc-shaped support plate (219) is fixedly connected to one end of the spring (218) away from the vertical plate (213), and an anti-shake component (22) is arranged on the top left side of the vertical plate (213); The anti-shake component (22) comprises an L-shaped plate (221), the L-shaped plate (221) being fixed to the top left side of the vertical plate (213), a thin rod (222) penetrating the left side of the front side of the L-shaped plate (221) and being rotatably mounted, two rubber rollers (223) being fixed to the outer wall of the thin rod (222), the two rubber rollers (223) being located on the front and back sides of the L-shaped plate (221); An anti-deformation device (4) is provided at the top of the left side of the L-shaped plate (221), and an anti-retraction device (5) is provided at the side of the anti-deformation device (4) that is away from each other.

2. The annular bellows expansion mechanism according to claim 1, characterized in that: The four limit rods (3) are located on the right side of the tube placing rack (2), the four limit rods (3) are stuck in the intervals of the corrugated tube, the top of the left side of the tube placing rack (2) is on the movement track of the arc-shaped support plate (219), and the outer walls of the two rubber rollers (223) are in contact with the top surface of the machine platform (1).

3. The annular bellows expansion mechanism according to claim 2, characterized in that: The anti-deformation device (4) comprises two U-shaped oblique rods (41), a circular ring (42), four connecting plates (43), four short rods (44) and an annular plate (45), wherein the two U-shaped oblique rods (41) are fixed to the top of the left side of the L-shaped plate (221), the two U-shaped oblique rods (41) are located on the front and back sides of the vertical plate (213), the circular ring (42) is fixed to the right side of the two U-shaped oblique rods (41), the circular ring (42) is located on the right side of the outer wall of the flat cone shell (215), the four connecting plates (43) are fixed to the circular ring (42), the four short rods (44) are respectively fixed to the right sides of the four connecting plates (43), and the annular plate (45) is fixed to the side of the four short rods (44) close to each other.

4. The annular bellows expansion mechanism according to claim 3, characterized in that: The anti-deformation device (4) further comprises two straight ring plates (46), two arc-shaped spring sheets (47) and two chamfered blocks (48); the two straight ring plates (46) are respectively fixed on the outer walls of the two U-shaped inclined rods (41); the two straight ring plates (46) are located on the front and back sides of the flat cone shell (215); the two arc-shaped spring sheets (47) are respectively embedded in the bottom surfaces of the two straight ring plates (46); the two chamfered blocks (48) are respectively fixed at one end of the two arc-shaped spring sheets (47) away from the two straight ring plates (46); and the bottom surfaces of the two chamfered blocks (48) are in sliding contact with the top surface of the machine table (1).

5. The annular bellows expansion mechanism according to claim 4, characterized in that: The ring plate (45) is located on the right side of the circular ring (42), and chamfers are provided on the right sides of the two chamfered blocks (48). The two chamfered blocks (48) are respectively located on the right sides of the two rubber rollers (223).

6. The annular bellows expansion mechanism according to claim 5, characterized in that: The anti-retraction device (5) comprises two L-shaped strips (51), two round rods (52), an arc plate (53) and a semiconductor refrigeration plate (54), the two L-shaped strips (51) are respectively fixed on the side of the two straight ring plates (46) away from each other, the two round rods (52) respectively penetrate and are fixed on the right side of the top surface of the two L-shaped strips (51), the arc plate (53) is fixed on the top surface of the two round rods (52), the arc plate (53) is located above the flat cone shell (215), and the semiconductor refrigeration plate (54) is fixedly installed on the bottom surface of the arc plate (53).

7. The annular bellows expansion mechanism according to claim 6, characterized in that: The anti-retraction device (5) further comprises two short columns (55), two magnetic blocks (56) and a double-strip baffle (57), wherein the two short columns (55) are respectively embedded in the middle of the bottom surfaces of the two L-shaped strips (51), the two magnetic blocks (56) are respectively fixed to the bottom surfaces of the two short columns (55), the double-strip baffle (57) is fixed to the right side of the top surface of the machine platform (1), and the double-strip baffle (57) is located on the left side of the tube rack (2).

8. The annular bellows expansion mechanism according to claim 7, characterized in that: The semiconductor refrigeration plate (54) is located above the ring plate (45), and the left side of the double-strip baffle (57) is located on the movement trajectory of the two magnetic blocks (56).

Images