Insulation skin expanding machine

Abstract

The invention belongs to the technical field of insulation skin expansion, and particularly relates to an insulation skin expansion machine which comprises a machine base, a protective cover arranged above the machine base and an air pump assembly located in the machine base. The inflation enclasping mechanism comprises segmented air bags which are mutually independent, and each segmented air bag is communicated with an air inlet pipeline; the conical expansion shaft is arranged at the center of the plurality of segmented air bags and is used for expanding the tightly-held insulation skin; the to-be-wrapped piece is arranged at the large-diameter end part of the conical expansion shaft, so that the expanded insulation skin is wrapped on the surface of the to-be-wrapped piece; the Y-axis moving module is arranged in the protective cover; the at least two groups of clamp modules are arranged in the protective cover and are used for clamping and fixing the suspended conical expansion shaft; and the movable tip cone modules are arranged on the inner walls of the two sides of the protective cover to abut against and support the two ends of the conical expansion shaft.

Description

Technical Field

[0001] This invention belongs to the field of insulation expansion technology, and in particular relates to an insulation expansion machine. Background Technology

[0002] Airbag inflation and clamping technology is an expansion solution introduced from abroad in recent years. Its advantage is that it can accommodate the expansion of longer insulation sheets, up to about 2 meters (depending on the product diameter). Its main core technology is the use of airbags as an auxiliary. However, the airbags and controls on the market are still in the undeveloped stage. The airbags are single and lack air pressure control, resulting in a fixed airbag output force. However, as the product diameter changes during expansion, the reaction force on the airbag will change. This causes positional displacement during expansion due to changes in the friction between the expansion shaft and the insulation sheet, which is disastrous for product quality.

[0003] Currently available equipment that uses airbag expansion to tighten and expand the insulation layer (the principle is that after the airbag expands, it generates friction with the insulation, thus the airbag device of the equipment tightens the insulation and pushes the insulation to move) all use a single airbag and a single air source, with a single pressure. As the insulation passes through the gradually changing diameter of the expansion shaft, the pressure increases, which increases the friction between the insulation and the expansion shaft. This causes the position of the insulation relative to the expansion shaft to shift, resulting in dimensional deviations in the final assembly. Summary of the Invention

[0004] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution: An insulation expansion machine includes a base, a protective cover placed above the base, and an air pump assembly located within the base; it also includes: an inflation clamping mechanism, which includes two corresponding support plates, a plurality of mounting rings placed between the two support plates, and independent segmented airbags placed within each mounting ring, each segmented airbag being connected to an air inlet pipe; a conical expansion shaft, placed at the center of the plurality of segmented airbags, to expand the clamped insulation; a package to be packaged, placed at the large-diameter end of the conical expansion shaft, so that the expanded insulation wraps around the surface of the package; a Y-axis moving module, placed inside the protective cover, driving the inflation clamping mechanism to move along the length of the conical expansion shaft; a clamping module, at least two sets, placed inside the protective cover, to clamp and fix the suspended conical expansion shaft; and a moving top cone module, placed on the inner walls of both sides of the protective cover, to provide abutment support to both ends of the conical expansion shaft.

[0005] Further, the Y-axis moving module includes: a support frame, with two support frames arranged front and rear inside the protective cover; a motor component, the body of which is fixedly mounted on the side wall of the protective cover near the control panel via a plate; a synchronous belt assembly, with two synchronous pulleys of which are respectively connected to the output shaft of the motor component and a ball screw; a ball screw, with both ends mounted on the rear support frame via blocks and support plates; a first guide rail component, at least two of which are fixed along the Z-axis direction on the front support frame; a support slide plate, which is connected to the ball nut pair connected to the ball screw and the guide rail slider on the first guide rail component; and an L-shaped support plate, one plate of which is connected to the support slide plate, and the other plate of which is connected to one of the support discs.

[0006] Furthermore, the clamping module includes: inclined support blocks, at least two of which are fixed on the support frame on the rear side; a first cylinder, which is inclinedly fixed on the inclined surface of the inclined support blocks, and the output rod of the first cylinder faces the direction of the conical expansion shaft; a connecting plate, which is placed at the end of the output rod of the first cylinder and is used to install the gripper cylinder; a gripper cylinder, which is fixedly placed on the connecting plate; and clamping blocks, two of which are fixedly installed on the gripper of the gripper cylinder, and recessed clamping grooves are formed on their corresponding wall surfaces.

[0007] Furthermore, the fixture module also includes: a guide block, which is fixedly disposed along the length of the cylinder body of the first cylinder; and a guide rod, one end of which is fixedly connected to the connecting rod, and the other end of which is movably disposed within the guide block.

[0008] Further, the movable top cone module includes: two fixed support plates, respectively fixed to the left and right inner walls of the protective cover; at least two second guide rail components, arranged along the X-axis direction of the fixed support plates; a sliding support plate, vertically connected to the sliders of the two sets of second guide rail components; a second cylinder, horizontally fixed to the fixed support plate along the X-axis direction, and its output rod end connected to the sliding support plate; a third cylinder, horizontally fixed to the sliding support plate along the Y-axis direction; a push plate, movably placed on the outer side of the sliding support plate, and the push plate connected to the output rod of the third cylinder; and at least two top cone components, fixed to the push plate.

[0009] Furthermore, the conical expansion shaft is a tubular component, and its tube wall is provided with an array of several groups of air holes; an air flotation mechanism is provided inside the conical expansion shaft, and the air flotation mechanism moves synchronously with the inflation clamping mechanism, so that a "gas lubricating film" is formed between the insulating skin and the conical expansion shaft, transforming solid contact into gas isolation.

[0010] Further, the air flotation mechanism includes: support rings, at least two of which are movably placed inside the conical expansion shaft, and the outer ring surfaces of the two support rings are formed with annular recessed grooves; bladder-shaped expansion rings, at least two of which are respectively placed in the annular recessed grooves formed on the two support rings; a rubber ring, placed on the outer ring surface of the bladder-shaped expansion ring, and the rubber ring is movably and sealingly fitted to the inner wall of the tubular conical expansion shaft; a support tube, one end of which is connected to one of the support rings in a sealed state, and the other end of which extends out of the other support ring, and the first support tube is provided with an air jet hole; a guide tube, which is fixedly installed inside the support tube and is connected to the bladder-shaped expansion ring through several connecting tubes; a split air tube, one end of which of the two split air tubes is connected to the guide tube and the support tube respectively, and the other end of which is connected to the main air tube through a solenoid valve; and a support pushing assembly, one end of which is connected to one of the support rings, and the other end of which is connected to the support slide plate.

[0011] Further, the support and pushing assembly includes: support columns, at least two of which are fixed to the outer side of the support ring near the smaller diameter end of the conical expansion shaft; a connecting plate, fixedly connected to at least two of the support columns; a guide groove, opened along the length direction of the conical expansion shaft, with the groove opening facing the support slide plate direction and both ends sealed; a horizontal connecting rod, one end of which is detachably connected to the connecting plate, and the other end extending through the outside of the guide groove to a position near the support slide plate; a guide slide bar, placed on the side of the horizontal connecting rod near the support slide plate; a T-shaped guide groove, opened along the Y-axis direction of the support slide plate; a T-shaped slider, movably disposed in the T-shaped guide groove, and connected to the end of the guide slide bar away from the horizontal connecting rod, and the T-shaped slider and the groove wall of the T-shaped guide groove are connected by a spring; and a connecting strip, both ends of which are respectively connected to the two support rings, and the connecting strip fits into the guide groove, and the connecting strip also has air holes.

[0012] The present invention has the following beneficial effects: 1. This solution cleverly transforms the existing integrated clamping airbag into an independent segmented airbag, allowing each segmented airbag to achieve independent air supply and pressure control. In actual operation, the individual inflation of each segmented airbag can independently apply tension to the insulation. As the diameter of the conical expansion shaft changes continuously, the pressure of the segmented airbags will change accordingly, resulting in different frictional forces for each segment of insulation. This promotes the smooth movement of the insulation and prevents existing expansion devices from having a single airbag, a single air source, and a single pressure. This would cause a significant deviation in the final assembly size when the position of the insulation relative to the expansion shaft changes, which would affect the accuracy of the insulation expansion opening wrapped on the cable core.

[0013] 2. This solution cleverly incorporates a sliding air flotation mechanism within the tubular conical expansion shaft. The length of the air flotation mechanism is similar to the distance between the two support plates. The purpose is to allow the gas supplied by the air flotation mechanism to the tubular conical expansion shaft to be delivered between the insulating skin and the conical expansion shaft through the circumferentially arrayed air holes. This creates a "gas lubrication film" between the insulating skin and the conical expansion shaft, transforming solid contact into gas isolation. This reduces the friction between the sliding insulating skin and the conical expansion shaft, effectively reducing the difficulty of sliding the insulating skin on the conical expansion shaft or the occurrence of wear and tear. It also reduces the occurrence of wear on the conical expansion shaft over long periods of time.

[0014] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a perspective view of the expansion machine according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of the Y-axis moving module according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the structure of the clamp module and the movable top cone module according to an embodiment of the present invention; Figure 4 This is a diagram showing the engagement state of the inflatable clamping mechanism and the conical expansion shaft according to an embodiment of the present invention. Figure 5 This is a schematic diagram of the structure of multiple segmented airbags according to an embodiment of the present invention; Figure 6 This is a cross-sectional view of the tapered expansion shaft according to an embodiment of the present invention; Figure 7 This is a cross-sectional view of the support ring according to an embodiment of the present invention; Figure 8 This is a cross-sectional view of the support slide plate according to an embodiment of the present invention.

[0017] In the diagram: 1. Base; 2. Protective cover; 3. Air pump assembly; 4. Inflatable clamping mechanism; 41. Support plate; 42. Mounting ring; 43. Segmented airbag; 44. Air inlet pipe; 5. Conical expansion shaft; 51. Package to be packed; 52. Insulating sheath; 53. Guide groove; 6. Y-axis moving module; 61. Support frame; 62. Motor components; 63. Synchronous belt assembly; 64. Ball screw; 65. First guide rail component; 66. Support slide plate; 67. L-shaped support plate; 7. Clamping module; 71. Inclined support block; 72. First cylinder; 73. Connecting plate; 74. Gripper cylinder; 75. Clamping block; 76. Guide. 77. Guide rod; 8. Moving top cone module; 81. Fixed support plate; 82. Second guide rail; 83. Sliding support plate; 84. Second cylinder; 85. Third cylinder; 86. Push plate; 87. Top cone; 9. Air flotation mechanism; 91. Support ring; 91. Annular recessed groove; 92. Bladder-shaped expansion ring; 93. Rubber ring; 94. Support tube; 95. Air guide tube; 96. Diverting air tube; 10. Support pushing assembly; 101. Support column; 102. Connecting plate; 103. Horizontal connecting rod; 104. Guide slide bar; 105. T-shaped guide groove; 106. T-shaped slider; 107. Connecting strip. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] In the description of this invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around", etc., which indicate orientation or positional relationship, are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting this invention. Example

[0020] Please see Figures 1-7As shown, the present invention is an insulating skin expander, including a base 1, a protective cover 2 placed above the base 1, and an air pump assembly 3 located inside the base 1; it also includes: an inflation clamping mechanism 4, the inflation clamping mechanism 4 including two corresponding support plates 41, a plurality of mounting rings 42 placed between the two support plates 41, and independent segmented airbags 43 placed in each mounting ring 42, each segmented airbag 43 being connected to an air inlet pipe 44; and a conical expansion shaft 5, placed at the center of the plurality of segmented airbags 43, to realize... The insulating skin 52 is expanded; the package 51 is placed at the large-diameter end of the conical expansion shaft 5, so that the expanded insulating skin 52 wraps around the surface of the package 51; the Y-axis moving module 6 is placed inside the protective cover 2, driving the inflation clamping mechanism 4 to move along the length of the conical expansion shaft 5; at least two clamping modules 7 are placed inside the protective cover 2 to clamp and fix the suspended conical expansion shaft 5; the moving top cone module 8 is placed on the inner walls of both sides of the protective cover 2 to provide abutment support to both ends of the conical expansion shaft 5. As a preferred embodiment of this solution, the inflatable clamping mechanism 4 is used in two sets. Therefore, the corresponding clamping module 7 needs to be set in four sets, and each pair of clamping modules 7 is symmetrically arranged. When it is necessary to clamp and expand the insulation skin 52 onto the component to be wrapped 51, the component to be wrapped 51 is a cable core, for example: Conical expansion shaft 5 clamping: The package 51 is detachably connected to the large diameter end of the conical expansion shaft 5. The insulating skin 52 is sleeved on the small diameter end of the conical expansion shaft 5. Then, the conical expansion shaft 5 is placed into the protective cover 2 and passes through the upper inflation clamping mechanism 4. The two clamping modules 7 above and on the same horizontal line clamp and fix it. Then, another conical expansion shaft 5 is clamped to the lower inflation clamping mechanism 4 and clamping module 7 in the same way. Then, the control panel on the protective cover 2 controls the operation of the moving top cone module 8 to press and fix the two clamped and fixed conical expansion shafts 5 together. Insulating skin 52 clamping: The air pump assembly 3 inside the base 1 is controlled by the control panel on one side of the protective cover 2. Since the air pump assembly 3 supplies air to several independent segmented airbags 43 through multiple air pipes, each segmented airbag 43 can be individually supplied with air and pressure controlled. In actual operation, the individual inflation of each segmented airbag 43 will cause it to expand in the mounting ring 42, which can independently apply tension force to the insulating skin 52. After the multiple segmented airbags 43 are tightened and clamp the insulating skin 52, the control button on the base 1 is activated, so that the Y-axis moving module 6 can drive the upper and lower sets of inflation clamping mechanisms 4 to move from right to left along the length of the conical expansion shaft 5. Through the conical expansion shaft 5, the insulating skin 52 will gradually expand. Since the diameter of the conical expansion shaft 5 is constantly changing, the pressure of the segmented airbags 43 will change accordingly, so that each segment of the insulating skin 52 will obtain different friction force, thereby pushing the insulating skin 52 to move smoothly. When the insulating skin 52 is expanded and moved to the position of the clamp module 7 near the left side, the clamp module 7 opens and retracts, so that multiple segmented airbags 43 can drive the expanded insulating skin 52 to be fitted onto the package 51. Disassembly of package 51: The conical expansion shaft 5 can be disassembled without disassembling. For example, after the expanded insulating skin 52 is completely wrapped around the package 51, the Y-axis moving module 6 will drive the inflation clamping mechanism 4 to slide from left to right to the initial position (at this time, the gas inside the multiple segmented airbags 43 will be extracted, causing them to detach from the contact with the conical expansion shaft 5). Then, the left moving top cone module 8 can be controlled to disengage from the conical expansion shaft, while the left clamping module 7 can continue to clamp and fix the conical expansion shaft 5. Then, the operator will disassemble the package 51 from the large diameter end of the conical expansion shaft 5. Then, the piece 51 to be wrapped with insulating skin 52 is installed onto the large diameter end of the conical expansion shaft 5, so that the left movable top cone module 8 presses against the left end of the conical expansion shaft 5, and then the right movable top cone module 8 is disengaged from pressing against the right end of the conical expansion shaft 5. The new insulating skin 52 is sleeved on the conical expansion shaft 5 and moved between multiple segmented airbags 43, which facilitates the clamping and expansion movement of the next insulating skin 52 to be clamped and expanded. This solution cleverly transforms the existing integrated clamping airbag into an independent segmented airbag 43. This allows each segmented airbag 43 to achieve independent air supply and pressure control. In actual operation, the individual inflation of each segmented airbag 43 can independently apply tension to the insulation 52. As the diameter of the conical expansion shaft 5 continuously changes, the pressure of the segmented airbags 43 will change accordingly, resulting in different frictional forces for each segment of the insulation 52. This promotes the smooth movement of the insulation 52, preventing existing expansion devices from having a single airbag, a single air source, and a single pressure. This would cause a significant deviation in the final assembly size when the position of the insulation 52 relative to the expansion shaft changes, thus affecting the accuracy of the insulation 52 expansion opening wrapped on the cable core.

[0021] See Figures 1 to 3 As shown, the Y-axis moving module 6 includes: a support frame 61, with two support frames 61 arranged front and rear inside the protective cover 2; a motor component 62, the body of which is fixedly mounted on the side wall of the protective cover 2 near the control panel via a plate; a synchronous belt assembly 63, with two synchronous pulleys of the synchronous belt assembly 63 respectively connected to the output shaft of the motor component 62 and a ball screw 64; a ball screw 64, with both ends respectively mounted on the rear support frame 61 via a block and a support plate; a first guide rail component 65, at least two of which are fixed along the Y-axis direction on the front support frame 61; a support slide plate 66, which is connected to the ball nut pair connected to the ball screw 64 and the guide rail slider on the first guide rail component 65; and an L-shaped support plate 67, one plate of which is connected to the support slide plate 66, and the other plate is connected to one of the support discs 41. In a preferred embodiment of this solution, the ball screw 64 is located between two sets of symmetrical first guide rails 65, and the guide rails of the two sets of corresponding guide rails are fixed on the crossbeam of the front support frame 61. When the two sets of inflatable clamping mechanisms 4, after clamping, slide from right to left (Y-axis direction) along the length of the conical expansion shaft 5, the control button on the base 1 controls the motor 62 to work, causing it to drive the ball screw 64 to rotate through the synchronous belt assembly 63. The ball nut pair will then drive the support slide plate 66 to slide from right to left within the protective cover 2. The cooperation between the slider of the guide rail 65 and the guide rail can provide guidance and support for the support slide plate 66. The two L-shaped support plates 67 fixed on the support slide plate 66 will drive the upper and lower support plates 41 to slide synchronously, which will facilitate the several segmented airbags 43 to drive the tightly wrapped insulating skin 52 to slide and expand continuously from right to left along the conical expansion axis 5. When the L-shaped support plate 67 slides to the position of the clamp module 7, the clamp module 7 will retract so that it will not interfere with the support slide plate 66 driving the inflation clamping mechanism 4 to normally drive the tightly wrapped and expanded insulating skin 52 to move onto the package 51. After the expanded insulation skin 52 is wrapped around the package 51, the inflatable clamping mechanism 4 disengages from the insulation skin 52. The reverse operation of the motor 62 causes the synchronous belt assembly 63 to drive the ball screw 64 to rotate in the opposite direction. At this time, the support slide plate 66 will drive the two sets of inflatable clamping mechanisms 4 to slide from left to right to the initial position inside the protective cover 2 through the two L-shaped support plates 67, which facilitates the clamping and expansion of the next set of insulation skin 52.

[0022] See Figures 1 to 3 As shown, the clamp module 7 includes: inclined support blocks 71, at least two of which are fixed on the support frame 61 on the rear side; a first cylinder 72, which is inclinedly fixed on the inclined surface of the inclined support blocks 71, and the output rod of the first cylinder 72 faces the direction of the conical expansion shaft 5; a connecting plate 73, which is placed at the end of the output rod of the first cylinder 72 and is used to install a gripper cylinder 74; a gripper cylinder 74, which is fixedly placed on the connecting plate 73; and clamping blocks 75, two of which are fixedly installed on the gripper of the gripper cylinder 74, and recessed clamping grooves are formed on their corresponding wall surfaces; In a preferred embodiment of this solution, the two upper inclined support blocks 71 are fixed on the crossbar of the rear support frame 61, while the two lower inclined support blocks 71 are preferably fixed on the base 1. When it is necessary to clamp the conical expansion shaft 5 into the protective cover 2 (the conical expansion shaft 5 can be clamped first and then pressed against it), first control the output rod of the first cylinder 72 to extend, so that it drives the gripper cylinder 74 to move towards the opening of the protective cover 2 through the connecting plate 73. Then control the gripper of the gripper cylinder 74 to open, so that the two gripper blocks 75 are far apart from each other to the maximum distance. Then the conical expansion shaft 5 to be clamped is placed into the two sets of open gripper blocks 75 located at the same horizontal plane. At this time, the gripper of the two gripper cylinders 74 approaches each other, so that the gripper blocks 75 clamp and fix the conical expansion shaft 5. Since the diameter of the conical expansion shaft 5 is different, the contraction distance of the gripper of the two gripper cylinders 74 located at the same horizontal height is also different, which makes it easier to clamp and fix the conical expansion shaft 5. Then the top cone module 8 is moved to press and fix the clamped conical expansion shaft 5, which makes it easier to clamp and fix the conical expansion shaft 5. When the inflatable clamping mechanism 4 moves to the side close to the clamping block 75, the clamping claws of the clamping claw cylinder 74 open, causing the clamping block 75 to disengage from the conical expansion shaft 5. Then, the output rod of the first cylinder 72 is controlled to retract, causing it to drive the clamping claw cylinder 74 and the clamping block 75 to move away from the conical expansion shaft 5. At this time, the conical expansion shaft 5 will not fall (because the two ends of the conical expansion shaft 5 are pressed and fixed by the moving top cone module 8), which makes it easier for the inflatable clamping mechanism 4 to drive the continuously expanding insulating skin 52 to move to the surface of the item to be wrapped 51 for tight wrapping.

[0023] See Figures 1 to 3 As shown, the fixture module 7 further includes: a guide block 76, which is fixedly arranged along the length of the cylinder body of the first cylinder 72; and a guide rod 77, one end of which is fixedly connected to the connecting rod, and the other end of which is movably placed within the guide block 76; As a preferred embodiment of this solution, the cooperation of the guide block 76 and the guide rod 77 not only guides the tilted extended gripper cylinder 74 and the gripping block 75, but also provides gravity support for the gripped conical expansion shaft 5, preventing the gravity of the conical expansion shaft 5 from being directly applied to the output rod of the first cylinder 72 through the gripper cylinder 74, which would otherwise cause the output rod of the first cylinder 72 to bend and deform after long-term use.

[0024] See Figures 1 to 3 As shown, the movable top cone module 8 includes: two fixed support plates 81, respectively fixed on the left and right inner walls of the protective cover 2; at least two sets of second guide rails 82, arranged along the X-axis direction of the fixed support plate 81; a sliding support plate 83, vertically connected to the sliders of the two sets of second guide rails 82; a second cylinder 84, horizontally fixed on the fixed support plate 81 along the X-axis direction, and its output rod end connected to the sliding support plate 83; a third cylinder 85, horizontally fixed on the sliding support plate along the Y-axis direction; a push plate 86, movably placed on the outer side of the sliding support plate 83, and the push plate 86 connected to the output rod of the third cylinder 85; and at least two top cones 87, fixed on the push plate 86. As a preferred embodiment of this solution, in order to prevent the insulating skin 52 from sliding along the large diameter direction of the conical expansion shaft 5, the friction between the insulating skin 52 and the conical expansion shaft 5 will cause the conical expansion shaft 5 to displace in the left and right horizontal directions, which will affect the precise clamping and expansion of the insulating skin 52. Therefore, in this solution, a movable top cone module 8 is installed on the left and right inner walls of the protective cover 2. When the upper and lower two conical expansion shafts 5 and the packaged part 51 are horizontally clamped, the output rod of the second cylinder 84 fixed horizontally (X-axis direction) on the fixed support plate 81 is extended, so that it drives the sliding support plate 83 to slide along the length direction of the second guide rail 82. This makes the two top cone parts 87 installed on the push plate 86 aligned with the shaft hole of the conical expansion shaft 5 and the end hole of the packaged part 51. Then, the output rod of the third cylinder 85 fixed on the sliding support plate 83 is extended, so that it drives the top cone parts 87 to be inserted into the shaft hole of the expansion shaft and the end hole of the packaged part 51 through the push plate 86. This facilitates the left and right horizontal positioning of the conical expansion shaft 5 and prevents the friction between the moving insulating skin 52 and the conical expansion shaft 5 from causing the conical expansion shaft 5 to be displaced in the axial direction. When it is necessary to disassemble the conical expansion shaft 5, the output rod of the third cylinder 85 can be controlled to retract, so that the top cone 87 can be disengaged from the pushing limit of the conical expansion shaft 5. Then, the clamping claw of the gripper cylinder 74 can be controlled to open, so that the conical expansion shaft can be easily removed from the protective cover 2. Example

[0025] When the tightly wrapped insulating skin 52 slides and expands along the conical expansion shaft 5, the core problem is that the "clamping force" of the airbag will increase the normal pressure between the insulating skin 52 and the conical expansion shaft 5, thereby increasing the sliding friction. This may lead to difficulty in sliding the insulating skin 52, wear or even breakage of the insulating skin 52, or wear of the conical expansion shaft 5 after long-term use. Therefore, this solution provides another implementation method: see [link / reference] Figures 4 to 8 As shown, the conical expansion shaft 5 is a tubular component, and several sets of air holes are arrayed on its tube wall; an air flotation mechanism 9 is provided inside the conical expansion shaft 5, and the air flotation mechanism 9 moves synchronously with the inflation clamping mechanism 4, so that a "gas lubrication film" is formed between the insulating skin 52 and the conical expansion shaft 5, which transforms solid contact into gas isolation; As a preferred embodiment of this solution: the length of the air flotation mechanism 9 is similar to the distance between the two support disks 41. The purpose is to enable the gas delivered by the air flotation mechanism 9 into the tubular conical expansion shaft 5 to be delivered between the insulating skin 52 and the conical expansion shaft 5 through the air holes opened in the circumferential array, so that a "gas lubrication film" is formed between the insulating skin 52 and the conical expansion shaft 5, which transforms solid contact into gas isolation. This reduces the friction between the sliding insulating skin 52 and the conical expansion shaft 5, effectively reducing the phenomenon of difficulty in sliding the insulating skin 52 on the conical expansion shaft 5 or wear and breakage. At the same time, it also reduces the phenomenon of wear on the conical expansion shaft 5 over a long period of time. It should be noted that the "clamping force" of the segmented airbag 43 is to squeeze the insulating skin 52 inward (ensuring that the insulating skin 52 expands and adheres), while the "air film pressure" of the air float is to support the insulating skin 52 outward (forming suspension). Since the two are in opposite directions, the air film pressure (usually 0.05-0.1MPa) needs to be precisely controlled to be slightly lower than the clamping force of the airbag (usually 0.2-0.5MPa) to ensure that the air film is not "crushed" by the clamping force, and to avoid the air film pressure being too high and pushing up the insulating skin 52, thus destroying the expansion effect of the airbag.

[0026] See Figures 4 to 8As shown, the air flotation mechanism 9 includes: support rings 91, at least two of which are movably disposed within the conical expansion shaft 5, and the outer surfaces of the two support rings 91 are formed with annular recesses 911; bladder-shaped expansion rings 92, at least two of which are respectively disposed within the annular recesses 911 formed on the two support rings 91; rubber rings 93, disposed on the outer surfaces of the bladder-shaped expansion rings 92, and the rubber rings 93 are movably and sealingly fitted to the inner wall of the tubular conical expansion shaft 5; and a support tube 94, one end of which is connected to one of the support rings 91 in a sealed state, and the other end... The end of the tube extends out of another support ring 91. The first support tube 94 has an air jet hole. The air guide tube 95 is fixedly installed inside the support tube 94 and is connected to the bladder-shaped expansion ring 92 through several connecting tubes. The two split air tubes 96 have one end connected to the air guide tube 95 and the support tube 94 respectively, and the other end connected to the main air tube through a solenoid valve. The support pushing assembly 10 has one end connected to one of the support rings 91 and the other end connected to the support slide plate 66. In a preferred embodiment of this solution, when the multiple segmented airbags 43 are inflated to tighten the insulating skin 52, the air pump assembly 3 will introduce gas into the two branch air pipes 96 through the main air pipe. The gas in one of the branch air pipes 96 will be injected into the bladder-shaped expansion ring 92 through the air guide pipe 95 and several connecting pipes, so that the circumferentially expanding bladder-shaped expansion ring 92 can drive the rubber ring 93 to adhere to the inner wall of the conical expansion shaft 5, so that an "inflatable cavity" similar in size to the length of the insulating skin 52 is formed between the two support rings 91 (because the distance between the two support rings 91 and the insulating skin 52 is similar in size to the length of the insulating skin 52). (2 are similar in length) When the gas in the other diversion pipe 96 enters the support pipe 94, the gas will enter the "filling cavity" through the opened jet hole, and the guide pipe 95 will not interfere with the entry of the gas in the support pipe 94 (because the diameter of the guide pipe 95 is much smaller than the inner diameter of the support pipe 94). The airflow that enters the "filling cavity" evenly will enter the space between the insulating skin 52 and the conical expansion shaft 5 through the air holes opened in the circumferential array on the conical expansion shaft 5, so as to form a "gas lubrication film". And since the two support rings 91 are connected to the support slide plate 66 through the support push assembly 10; Furthermore, when the supporting slide plate 66 drives the inflatable clamping mechanism 4 and the clamped insulating skin 52 to slide synchronously, the two supporting rings 91 and the formed "inflatable cavity" located in the conical expansion shaft 5 will slide synchronously, and the gas filled in the "inflatable cavity" will not leak along its length in the conical expansion shaft 5 (because the rubber ring 93 is slidably sealed to the conical expansion shaft 5, and the inner diameter of the tubular conical expansion shaft 5 is the same). As the clamped insulating skin 52 expands and slides along the conical expansion shaft 5, the formed "gas lubricating film" can slide synchronously, thereby reducing the difficulty of the insulating skin 52 sliding on the conical expansion shaft 5 or the occurrence of wear and breakage. At the same time, it will also reduce the occurrence of wear on the conical expansion shaft 5 over a long period of time. When the support slide plate 66 drives the inflation clamping mechanism 4 to slide from left to right along the conical expansion shaft 5 (at this time, several segmented airbags 43 deflate and contract), the two support rings 91 will also slide in the opposite direction synchronously within the conical expansion shaft 5 through the support pushing assembly 10. At this time, the diversion air pipe 96 will extract the gas in the bladder-shaped expansion tube through the air guide pipe 95 and the connecting pipe, so that the rubber ring 93 is no longer attached to the inner wall of the conical expansion shaft 5, thus making it easier for the support slide plate 66 to quickly drive the inflation clamping mechanism 4 and the air floatation mechanism 9 to synchronously reset to the initial position, and perform clamping and expansion processing on the next insulating skin 52.

[0027] See Figures 4 to 8 As shown, the support and pushing assembly 10 includes: support columns 101, at least two of which are fixed to the outer side of the support ring 91 near the small diameter end of the conical expansion shaft 5; a connecting plate 102, fixedly connected to at least two of the support columns 101; a guide groove 53, opened along the length of the conical expansion shaft 5, with the groove opening facing the support slide plate 66 and both ends sealed; a horizontal connecting rod 103, one end of which is detachably connected to the connecting plate 102, and the other end extending through the outside of the guide groove 53 to a position near the support slide plate 66; and a guide slide bar 104. The horizontal connecting rod 103 is positioned on the side near the supporting slide plate 66; a T-shaped guide groove 105 is opened along the Y-axis direction of the supporting slide plate 66; a T-shaped slider 106 is movably disposed in the T-shaped guide groove 105 and is connected to the end of the guide slide bar 104 away from the horizontal connecting rod 103, and the T-shaped slider 106 is connected to the groove wall of the T-shaped guide groove 105 by a spring; and a connecting strip 107, the two ends of which are respectively connected to two support rings 91, and the connecting strip 107 is attached to the guide groove 53, and air holes are also opened on the connecting strip 107; In a preferred embodiment of this solution, to enable the two support rings 91 to move synchronously with the multiple segmented airbags 43, the support ring 91 near the smaller diameter side of the conical expansion shaft 5 is detachably connected to the horizontal connecting rod 103 via the support column 101 and the connecting plate 102 (the horizontal connecting rod 103 passes through the guide groove 53 and is inserted into the insertion hole on the connecting plate 102, and then connected to the connecting plate 102 by an internal hex screw). The horizontal connecting rod 103 is slidably disposed in the T-shaped guide groove 105 through the cooperation of the guide slide 104, the T-shaped slider 106 and the spring. Therefore, when the support slide plate 66 drives the multiple segmented airbags 43 to slide, the support slide plate 66 will slide through the T-shaped guide groove 105. Block 106 and guide slide 104 drive horizontal connecting rod 103 to slide in guide groove 53 (at this time, the spring in T-shaped guide groove 105 is in an extended state to push and limit T-shaped slider 106). Since the two support rings 91 are connected by connecting strip 107, the horizontal connecting rod 103 will drive the two support rings 91 to slide synchronously with multiple segmented airbags 43 in conical expansion shaft 5 (at this time, the elastic thrust of the spring is greater than the friction between the rubber ring 93 and the inner wall of the conical expansion shaft 5), so that the "gas lubrication film" can move synchronously with the expansion of insulating skin 52, thereby further reducing the phenomenon of difficulty in sliding insulating skin 52 on conical expansion shaft 5 or wear and breakage. When the expanded insulation 52 moves to the package 51, since both ends of the guide groove 53 are closed, when the horizontal connecting rod 103 touches the closed end of the guide groove 53 near the large diameter of the conical expansion shaft 5, the continued sliding of the support slide plate 66 will cause the T-shaped slider 106 to slide relative to the T-shaped guide groove 105, thereby allowing the guide strip 104 to slide in the opposite direction on the support slide plate 66. This will not only allow the expanded insulation 52 to be stably transferred to the package 51 (since the diameter of the connection between the conical expansion shaft 5 and the package 51 is similar to the size of the package 51), but also keep the two support rings 91 located in the conical expansion shaft 5 stationary. This will prevent the two support rings 91 from touching the package 51 due to the synchronous sliding of the multiple segmented airbags 43, thus preventing the expanded insulation 52 from being accurately wrapped around the package 51. When the support slide plate 66 drives the multiple segmented airbags 43, which have been reduced in size, to move from left to right within the protective cover 2, the spring component will first push the T-shaped slider 106 to slide relative to each other within the T-shaped guide groove 105 (the two support rings 91 may be in a relatively static state within the conical expansion shaft 5). After the multiple segmented airbags 43 are fitted onto the conical expansion shaft 5 and correspond to the two support rings 91, the continued sliding of the support slide plate 66 will drive the two support rings 91 to slide in the opposite direction within the conical expansion shaft 5 through the guide slide bar 104 and the horizontal connecting rod 103, so that the air flotation mechanism 9 can follow the inflation clamping mechanism 4 to return to the initial position. The two support rings 91 are connected to each other by a connecting strip 107. This not only allows the two support rings 91 to slide synchronously within the conical expansion shaft 5, but also allows the connecting strip 107 to adhere to the tube wall of the conical expansion shaft 5. This seals the guide groove 53 between the two support rings 91, preventing a large amount of gas from leaking out of the "inflatable cavity" through the guide groove 53, which would affect the uniformity of the formed "gas lubrication film". The vents on the connecting strip 107 are similar in size to the vents on the conical expansion shaft 5, allowing the gas in the "inflatable cavity" to enter between the insulating skin 52 and the conical expansion shaft 5 through the vents on the connecting strip 107, thereby further improving the uniformity of the formed "gas lubrication film".

[0028] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0029] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. An insulating skin expander, comprising a base, a protective cover positioned above the base, and an air pump assembly located within the base; characterized in that, Also includes: An inflatable clamping mechanism, comprising two corresponding support plates, several mounting rings placed between the two support plates, and independent segmented airbags placed in each mounting ring, with each segmented airbag connected to an air intake pipe. A conical expansion shaft is placed at the center of several segmented airbags to expand the tightly wrapped insulating skin; The package to be packaged is placed at the large-diameter end of the conical expansion shaft, so that the expanded insulation wraps around the surface of the package. The Y-axis moving module is placed inside the protective cover and drives the inflatable clamping mechanism to move along the length of the conical expansion axis. The clamping module, with at least two sets placed inside the protective cover, enables the clamping and fixing of the suspended conical expansion shaft; The movable top cone module is placed on the inner walls of both sides of the protective cover to provide tight support to both ends of the conical expansion shaft.

2. The insulating sheet expander according to claim 1, characterized in that, The Y-axis movement module includes: Support frames, with two support frames arranged front and rear within the protective cover; The motor component, the body of which is fixedly mounted on the side wall of the protective cover via a plate; A timing belt assembly, wherein the two timing belt pulleys of the timing belt assembly are respectively connected to the output shaft of the motor and the ball screw; The ball screw is mounted on the rear support frame at both ends via a vertical block and a support plate, respectively. The first guide rail component, at least two of which are fixed to the support frame on the front side along the Z-axis direction; The support slide is connected to the ball nut pair connected to the ball screw and the guide rail slider on the first guide rail component; And an L-shaped support plate, one of which is connected to a support slide plate, and the other of which is connected to one of the support discs.

3. The insulating sheet expander according to claim 1, characterized in that, The fixture module includes: At least two inclined support blocks are fixed to the support frame on the rear side; The first cylinder is fixed at an angle on the inclined surface of the inclined support block, and the output rod of the first cylinder is oriented towards the conical expansion shaft. A connecting plate is placed at the end of the output rod of the first cylinder and is used to install the gripper cylinder. A gripper cylinder is fixedly mounted on the connecting plate; And clamping blocks, two of which are fixedly mounted on the clamping jaws of the clamping jaw cylinder, and recessed clamping grooves are formed on their corresponding wall surfaces.

4. An insulating sheet expander according to claim 3, characterized in that, The fixture module also includes: The guide block is fixedly installed along the length of the cylinder body of the first cylinder; And a guide rod, one end of which is fixedly connected to the connecting rod, and the other end of which is movably placed inside the guide block.

5. An insulating sheet expander according to claim 1, characterized in that, The movable top cone module includes: Two fixed support plates are fixed to the left and right inner walls of the protective cover, respectively. The second guide rail component, at least two sets, is arranged along the X-axis direction of the fixed support plate; The sliding support plate is vertically connected to the sliders of the two sets of the second guide rail components; The second cylinder is horizontally fixed on the fixed support plate along the X-axis, and the end of its output rod is connected to the sliding support plate. The third cylinder is horizontally fixed to the sliding support plate along the Y-axis direction; The push plate is movably positioned on the outer side of the sliding support plate, and the push plate is connected to the output rod of the third cylinder; And top cone components, at least two of which are fixed to the top push plate.

6. An insulating sheet expander according to claim 2, characterized in that, The conical expansion shaft is a tubular component, and its tube wall has an array of several groups of air holes; the conical expansion shaft is equipped with an air flotation mechanism, which moves synchronously with the inflation clamping mechanism, so that a "gas lubrication film" is formed between the insulating skin and the conical expansion shaft, transforming solid contact into gas isolation.

7. An insulating sheet expander according to claim 6, characterized in that, The air flotation mechanism includes: The support rings, at least two of which are movably placed within the conical expansion shaft, have annular recessed grooves formed on the outer ring surfaces of the two support rings; At least two bladder-shaped expansion rings are respectively placed in annular recesses formed on two support rings; A rubber ring is placed on the outer ring surface of the bladder-shaped expansion ring, and the rubber ring is movably and sealingly fitted to the inner wall of the tubular tapered expansion shaft; The first support tube has one end of its opening connected to one of the support rings in a sealed state, and the other end of its opening extends out of the other support ring. An air jet hole is provided on the first support tube. The air delivery tube is fixedly installed inside the support tube and is connected to the bladder-type expansion ring through several connecting tubes; The two shunt air tubes have one end connected to the air guide tube and the support tube respectively, and the other end connected to the main air tube through a solenoid valve. And a support and pushing assembly, one end of which is connected to one of the support rings and the other end of which is connected to the support slide plate.

8. An insulating sheet expander according to claim 7, characterized in that, The support and shifting component includes: Support columns, at least two of which are fixed to the outer side of the support ring near the end with the smaller diameter of the tapered expansion shaft; A connecting plate is fixedly connected to at least two of the support columns; The guide groove is opened along the length of the conical expansion shaft, and the opening of the guide groove faces the direction of the support slide plate, and its two ends are sealed. The horizontal connecting rod has one end detachably connected to the connecting plate, and the other end extends through the outside of the guide slot to a position near the support slide plate; A guide slide is positioned on the side of the horizontal connecting rod near the supporting slide plate; T-shaped guide grooves are provided along the Y-axis direction of the supporting slide plate; The T-shaped slider is movably disposed in the T-shaped guide groove and is connected to the end of the guide rail away from the horizontal connecting rod. The T-shaped slider and the groove wall of the T-shaped guide groove are connected by a spring. And a connecting strip, the two ends of which are respectively connected to two support rings, and the connecting strip is attached to the guide groove, and air holes are also provided on the connecting strip.

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