Spraying production line automatic hoisting equipment for polytetrafluoroethylene metal hose

Abstract

The invention discloses automatic hoisting equipment for a spraying production line of a polytetrafluoroethylene metal hose, and relates to the technical field of hose hoisting. A first limiting pipeline and a second limiting pipeline are fixed to the two opposite sides of a hoisting port correspondingly, the first limiting pipeline and the second limiting pipeline are used for being connected with flange holes in a polytetrafluoroethylene metal hose in an inserted mode, and a hose clamping mechanism is slidably connected with a corresponding warped plate type transmission part; the lifting driving part and the warping plate type transmission part are used for achieving circumferential movement of a flange bearing piece on the hose clamping mechanism, the steel rope movable end on the steel rope traction part is connected with the hose positioning mechanism, and the steel rope traction part is used for conveying the hose positioning mechanism into a clamped and fixed polytetrafluoroethylene metal hose. Preliminary positioning of the polytetrafluoroethylene metal hose is achieved through the hollow mounting part, the gas guide inner pipe and the gas guide outer pipe, so that the polytetrafluoroethylene metal hose is prevented from greatly shaking in the hoisting process, and then the stability and safety of the polytetrafluoroethylene metal hose in the hoisting process are improved.

Description

Technical Field

[0001] The invention belongs to the technical field of hose hoisting, and in particular relates to automatic hoisting equipment for a spraying production line of a polytetrafluoroethylene metal hose. Background Art

[0002] PTFE metal hose is a high-performance hose that combines the properties of polytetrafluoroethylene and metal. It is widely used in chemical, pharmaceutical, food and semiconductor industries. It is suitable for harsh environments such as high temperature, high pressure and strong corrosion. In some special application environments, PTFE metal hose needs to be sprayed to improve its performance, including the following special application environments: (1) Stainless steel may still corrode in certain environments (such as high salt spray, acidic atmosphere, and marine environment). External anti-corrosion coating can isolate corrosive media such as chloride ions and acid rain, and is suitable for harsh environments such as chemical plants and offshore platforms. (2) When the metal braided layer is directly exposed, it may be worn due to mechanical friction (such as collision with pipes and equipment). Coating with wear-resistant materials (such as ceramic coatings and polyurea) can extend the life of the hose in dynamic use, which is common in high-frequency friction scenarios such as mining machinery and conveying pipelines; (3) Spraying insulating materials (such as silicone rubber) can prevent current conduction and is used in power or anti-static applications. Spraying colors (such as yellow warning color) can facilitate identification or comply with safety regulations. (4) Stainless steel surfaces may have micropores that breed bacteria or absorb pollutants. They should be coated with a food-grade epoxy coating that complies with FDA or EU 1935 / 2004 standards to ensure cleanliness.

[0003] However, on the spraying production line of PTFE metal hoses, the hoisting of PTFE metal hoses is mostly directly clamped by the clamping mechanism and transported. During the hoisting process, the hoses are prone to shaking due to their characteristics, which greatly reduces the stability and safety of the PTFE metal hose hoisting process. Summary of the Invention

[0004] The purpose of the present invention is to provide an automatic lifting device for a spraying production line of a PTFE metal hose, which solves the problems in the above-mentioned background technology through the structural design of the lifting mechanism, the hose clamping mechanism and the hose positioning mechanism.

[0005] In order to solve the above technical problems, the present invention is achieved through the following technical solutions: The present invention is an automatic lifting device for a spraying production line of a PTFE metal hose, comprising a lifting mechanism, two hose clamping mechanisms symmetrically installed at the bottom of the lifting mechanism, and a hose positioning mechanism slidably arranged on the axis of the lifting mechanism, the hose clamping mechanism is used for clamping and fixing the PTFE metal hose, and the hose positioning mechanism is used for axial positioning of the PTFE metal hose; the lifting mechanism includes a lifting port, and a limiting pipe 1 and a limiting pipe 2 are fixed on opposite sides of the lifting port respectively, and the limiting pipe 1 and the limiting pipe 2 are used to The flange hole on the PTFE metal hose is plugged in; the seesaw transmission parts are symmetrically arranged on both sides of the lifting port, the seesaw transmission parts are arranged in a one-to-one correspondence with the hose clamping mechanism, and the hose clamping mechanism is slidingly connected to the corresponding seesaw transmission parts; a lifting drive part is used to drive the two seesaw transmission parts to rotate synchronously, and the circumferential movement of the flange support part on the hose clamping mechanism is realized through the lifting drive part and the seesaw transmission part; a steel rope traction part, the movable end of the steel rope on the steel rope traction part is connected to the hose positioning mechanism, and the steel rope traction part is used to transport the hose positioning mechanism to the inside of the clamped and fixed PTFE metal hose.

[0006] In this embodiment of the present invention, the lifting mechanism also includes a load-bearing hanger, the lifting opening is arranged at the axial center position of the load-bearing hanger, a vertical guide cylinder is fixedly installed inside the lifting opening above the load-bearing hanger, a suspension frame is fixedly installed on the top of the vertical guide cylinder, the suspension frame and the load-bearing hanger are fixedly connected by a limiting guide frame, and the limiting pipe 1 and the limiting pipe 2 are both fixedly installed on the load-bearing hanger.

[0007] In this embodiment of the present invention, two limit guide openings 1 are symmetrically opened on the top of the load-bearing hanger, and two limit guide openings 2 are symmetrically opened on the bottom of the load-bearing hanger. The lifting drive part includes two symmetrically arranged lifting drive frames, and the lifting drive frames are slidably fitted inside the limit guide opening 1. The outside of the vertical guide tube is provided with a linkage frame fixed to the lifting drive frame, and the linkage frame is slidably set between the two limit guide frames, and the cylinder output end installed at the bottom of the suspension frame is connected to the linkage frame.

[0008] In this embodiment of the present invention, the seesaw type transmission part includes a seesaw shaft rotatably arranged on opposite sides of the lifting opening, a transmission seesaw is fixedly arranged on the side surface of the seesaw shaft, two transmission slides are symmetrically arranged on the transmission seesaw, a transmission notch connected to the transmission slide below is opened on the surface of the transmission seesaw, and a first linkage rod connected to the corresponding lifting drive frame is slidably arranged inside the upper transmission slide.

[0009] In this embodiment of the present invention, a support ring coaxial with the support hanger is provided below the support hanger, two support plates are symmetrically fixed on the top of the support ring, the limiting pipe one and the limiting pipe two are respectively fixedly connected to the corresponding support plates, two groups of mounting plates are symmetrically fixed on the inner wall of the support ring, and a guide seat fixed to the support ring is provided on the inner side of each group of mounting plates, and a limiting disk and a limiting ring are respectively fixed on the inner wall of the vertical guide cylinder, the limiting disk is arranged close to the top of the vertical guide cylinder, and the limiting ring is arranged close to the bottom of the vertical guide cylinder, and a limiting slide rail is fixed on the inner wall of the vertical guide cylinder.

[0010] In this embodiment of the present invention, an air supply device is installed on the top of the supporting hanger, and an air supply pipe is connected to the air outlet of the air supply device. The air supply pipe is connected to a limiting pipe. The limiting pipe is connected to the vertical guide cylinder through a first conducting member. A second conducting member connected to the vertical guide cylinder is installed on the top of the supporting hanger. The first conducting member and the second conducting member are coaxially arranged, and an air discharge pipe is connected to the side surface of the second conducting member, and an electromagnetic valve is fixedly installed on the air discharge pipe.

[0011] In this embodiment of the present invention, a piston sealing member is slidingly provided inside the limiting pipe, a moving rod is fixed at the bottom of the piston sealing member, a force-bearing moving disk is fixed at the bottom of the moving rod, a limiting slideway is opened on the side surface of the limiting pipe and is located below the supporting hanger, and a counterweight is fixed on the side surface of the moving rod and is slidably matched with the limiting slideway.

[0012] In this embodiment of the present invention, the steel rope traction part includes guide rope wheels installed on both sides of the lifting opening below, and a guide rope opening corresponding to the guide rope wheels is opened on the top of the load-bearing hanger. A vertical connecting plate is fixedly provided on the top of the load-bearing hanger, and two winding shafts are symmetrically arranged on the vertical connecting plate. A steel rope winding wheel and a transmission wheel are fixedly installed on the winding shafts respectively, and the two transmission wheels are connected by a transmission belt. A traction motor connected to the corresponding winding shaft is installed on one side of the vertical guide cylinder.

[0013] In this embodiment of the present invention, the hose clamping mechanism includes a clamping control shaft rotatably arranged between the mounting plates, a toothed clamping portion coaxial with the clamping control shaft is arranged on the outer side of the clamping control shaft, the flange support member is fixedly arranged on the peripheral side of the toothed clamping portion, the toothed clamping portion and the clamping control shaft are connected through a fixing member, a toothed driving plate is meshed with one side of the toothed clamping portion, a U-shaped seat is fixed on the top of the toothed driving plate, which slides with the second limiting guide port, the U-shaped seat slides inside the transmission notch, and the second linkage rod fixed on the top of the U-shaped seat slides inside the transmission slide below.

[0014] In this embodiment of the present invention, the hose positioning mechanism includes a conducting piston that slides inside the vertical guide cylinder, a conducting hole is provided on the peripheral side of the conducting piston, a limiting port that slides with the limiting slide rail is provided on the peripheral side of the conducting piston, an outer gas tube is fixed to the bottom of the conducting piston, the conducting hole is connected to the inner cavity of the outer gas tube, an inner gas tube is sealed and slidably fitted inside the outer gas tube, a steel rope connecting part is fixed to the peripheral side of the inner gas tube, a hollow mounting part is provided at the bottom of the inner gas tube, an air bag is provided in the annular cavity on the peripheral side of the hollow mounting part, and an air supply hole that is connected to the interior of the air bag is provided on the inner wall of the hollow mounting part.

[0015] The present invention has the following beneficial effects: 1. The present invention inserts the limiting pipe 1 and the limiting pipe 2 into the two opposite flange holes on the PTFE metal hose respectively, and drives the outer gas guide pipe to move downward together through the inner gas guide pipe. When the conducting piston moves downward to separate from the limiting plate and leans against the limiting ring, the conducting channel on the conducting piston is concentrically aligned with the first conducting part and the second conducting part. When the hose positioning mechanism continues to descend to the set position, the preliminary positioning of the PTFE metal hose is achieved through the hollow mounting part, the inner gas guide pipe and the outer gas guide pipe to prevent the PTFE metal hose from shaking significantly during lifting, thereby improving the stability and safety of the PTFE metal hose during lifting.

[0016] 2. In the present invention, the air entering the inner cavity of the hollow mounting portion enters the airbag through each air delivery hole to inflate it, so that the inflated airbag is tightly attached to the inner wall of the PTFE metal hose, and then the entire hose positioning mechanism is controlled to descend a certain distance by the steel rope. The gripping force between the inflated airbag and the inner wall of the PTFE metal hose and the gravity of components such as the air guide inner tube generate a downward pulling force on the vertical PTFE metal hose, thereby ensuring that the PTFE metal hose is always in an upright and stable state during the lifting process, thereby greatly avoiding the shaking of the PTFE metal hose during the lifting process and ensuring the spraying quality of the PTFE metal hose.

[0017] 3. When the linkage frame is lowered to the set position through the cylinder control of the present invention, the arc-shaped toothed clamping part rotates close to the end of the flange supporting part and is inserted into the limiting pipe 1 and the limiting pipe 2. At this time, the flange supporting parts on both sides are tightly attached to the bottom of the top flange of the PTFE metal hose, thereby supporting the PTFE metal hose through the hose clamping mechanism on both sides. During this process, the toothed clamping part inserted into the limiting pipe 1 and the limiting pipe 2 pushes the force-bearing movable plate to move upward along the inner wall of the limiting pipe 1. When the flange supporting part is tightly attached to the bottom of the top flange of the PTFE metal hose, the piston sealing part just realizes the sealing of the air supply pipe and the first conducting part, thereby ensuring that the expanded airbag is in an inflated state. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 This is a working status diagram of the automatic lifting equipment in the present invention.

[0020] Figure 2 This is a diagram of the internal structure of the automatic lifting equipment in the present invention.

[0021] Figure 3 This is a diagram showing the coordination relationship between the lifting mechanism and the hose clamping mechanism in the present invention.

[0022] Figure 4 It is a structural schematic diagram of the lifting mechanism in the present invention.

[0023] Figure 5 for Figure 4 The structural front view.

[0024] Figure 6 for Figure 4 top view of the structure.

[0025] Figure 7 for Figure 4 Bottom view of the structure.

[0026] Figure 8 It is a structural cross-sectional view of the lifting mechanism in the present invention.

[0027] Figure 9 for Figure 8 A magnified view of the local structure at point A.

[0028] Figure 10 for Figure 8 A magnified view of the local structure at point B in the middle.

[0029] Figure 11 This is another structural sectional view of the lifting mechanism in the present invention.

[0030] Figure 12 for Figure 11 A magnified view of the local structure at point C in the middle.

[0031] Figure 13 This is a diagram of the steel rope arrangement on the lifting mechanism of the present invention.

[0032] Figure 14 It is a structural schematic diagram of the hose clamping mechanism in the present invention.

[0033] Figure 15It is a structural schematic diagram of the hose positioning mechanism in the present invention.

[0034] In the accompanying drawings, the components represented by the reference numerals are as follows: 1- Hoisting mechanism, 101- Hoisting port, 102- Limiting pipe 1, 103- Limiting pipe 2, 104- Load-bearing hanger, 105- Vertical guide tube, 106- Suspension frame, 107- Limiting guide frame, 108- Limiting guide port 1, 109- Limiting guide port 2, 110- Lifting drive frame, 111- Linkage frame, 112- Cylinder, 113- Rocker shaft, 114- Transmission rocker, 115- transmission slide, 116- transmission notch, 117- support ring, 118- support plate, 119- mounting plate, 120- guide seat, 121- limit plate, 122- limit ring, 123- limit slide rail, 124- air supply equipment, 125- air supply pipeline, 126- first conducting member, 127- second conducting member, 128- air release pipe, 129- solenoid valve, 130- Piston sealing member, 131-moving rod, 132-force moving disk, 133-limiting slide, 134-counterweight, 135-guide rope wheel, 136-guide rope mouth, 137-vertical connecting plate, 138-reeling shaft, 139-steel rope reel, 140-transmission wheel, 141-transmission belt, 142-traction motor, 2-hose clamping mechanism, 201-flange supporting member, 202-clamping control shaft, 203-toothed clamping part, 204-toothed drive plate, 205-U-shaped seat, 206-second linkage rod, 3-hose positioning mechanism, 301-conducting piston, 302-conducting channel, 303-limiting mouth, 304-air guide outer tube, 305-air guide inner tube, 306-steel rope connecting part, 307-hollow mounting part, 308-airbag, 4-tetrafluoroethylene metal hose. DETAILED DESCRIPTION

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0036] For specific embodiment 1, please refer to Figure 1-15The present invention is an automatic hoisting device for a spraying production line of a PTFE metal hose, comprising a hoisting mechanism 1, two hose clamping mechanisms 2 symmetrically mounted at the bottom of the hoisting mechanism 1, and a hose positioning mechanism 3 slidably mounted on the axis of the hoisting mechanism 1. The hose clamping mechanism 2 is used for clamping and fixing the PTFE metal hose 4, and the hose positioning mechanism 3 is used for axial positioning of the PTFE metal hose 4; the hoisting mechanism 1 comprises a hoisting port 101, a seesaw-type transmission part symmetrically arranged on both sides of the hoisting port 101, a lifting drive part and a steel rope traction part for driving the two seesaw-type transmission parts to rotate synchronously; the hoisting port 101 is symmetrically mounted on both sides of the hoisting port 101. A limiting pipe 102 and a limiting pipe 2 103 are fixed on both sides respectively, and the limiting pipe 102 and the limiting pipe 2 103 are used to be plugged into the flange holes on the polytetrafluoroethylene metal hose 4; the seesaw transmission part and the hose clamping mechanism 2 are arranged in a one-to-one correspondence, and the hose clamping mechanism 2 is slidingly connected to the corresponding seesaw transmission part; the circumferential movement of the flange supporting part 201 on the hose clamping mechanism 2 is realized by the lifting drive part and the seesaw transmission part; the movable end of the steel rope on the steel rope traction part is connected to the hose positioning mechanism 3, and the steel rope traction part is used to transport the hose positioning mechanism 3 to the inside of the clamped polytetrafluoroethylene metal hose 4.

[0037] In this embodiment of the invention, Figure 4 and Figure 12 As shown, the lifting mechanism 1 also includes a load-bearing hanger 104, and a lifting opening 101 is arranged at the axial position of the load-bearing hanger 104. A vertical guide tube 105 is fixedly installed inside the lifting opening 101 above the load-bearing hanger 104, and a suspension frame 106 is fixedly installed on the top of the vertical guide tube 105. The suspension frame 106 and the load-bearing hanger 104 are fixedly connected by a limiting guide frame 107 (to improve the structural strength of the entire lifting mechanism 1), and the limiting pipe 102 and the limiting pipe 2 103 are both fixedly installed on the load-bearing hanger 104.

[0038] Furthermore, two limit guide openings 108 are symmetrically opened on the top of the load-bearing hanger 104, and two limit guide openings 109 are symmetrically opened on the bottom of the load-bearing hanger 104. The lifting drive part includes two symmetrically arranged lifting drive frames 110, and the lifting drive frame 110 slides and fits inside the limit guide opening 108 (to ensure that the lifting drive frame 110 moves up and down smoothly). The outside of the vertical guide tube 105 is provided with a linkage frame 111 fixed to the lifting drive frame 110, and the linkage frame 111 is slidably set between the two limit guide frames 107 (to ensure that the lifting drive frame 110 moves up and down smoothly). The output end of the cylinder 112 installed at the bottom of the suspension frame 106 is connected to the linkage frame 111, that is, the up and down movement of the lifting drive frame 110 is controlled by the action of the cylinder 112 and the linkage frame 111.

[0039] In this embodiment of the invention, Figure 7 and Figure 12As shown, the seesaw type transmission part includes a seesaw shaft 113 rotatably arranged on opposite sides of the lifting port 101, a transmission seesaw 114 is fixedly arranged on the side surface of the seesaw shaft 113, and two transmission slides 115 are symmetrically arranged on the transmission seesaw 114. A transmission notch 116 connected to the transmission slide 115 below is opened on the surface of the transmission seesaw 114, and a first linkage rod connected to the corresponding lifting drive frame 110 is slidingly arranged inside the upper transmission slide 115. In the process of synchronous movement of the first linkage rod driven by the up and down movement of the lifting drive frame 110, the first linkage rod is used to push the transmission seesaw 114 to rotate, and in this process, the first linkage rod and the corresponding transmission slide 115 slide relative to each other.

[0040] Furthermore, a support ring 117 coaxial with the support hanger 104 is provided below the support hanger 104, and two support plates 118 are symmetrically fixed on the top of the support ring 117. The limiting pipe 102 and the limiting pipe 2 103 are fixedly connected to the corresponding support plates 118 respectively. Two groups of mounting plates 119 are symmetrically fixed on the inner wall of the support ring 117, and a guide seat 120 fixed to the support ring 117 is provided on the inner side of each group of mounting plates 119. A limiting disk 121 and a limiting ring 122 are fixed on the inner wall of the vertical guide cylinder 105 respectively. The limiting disk 121 is arranged close to the top of the vertical guide cylinder 105, and the limiting ring 122 is arranged close to the bottom of the vertical guide cylinder 105. A limiting slide rail 123 is fixed on the inner wall of the vertical guide cylinder 105.

[0041] In this embodiment of the invention, Figure 8 、 Figure 9 and Figure 10 As shown, an air supply device 124 is installed on the top of the supporting hanger 104, and the air outlet of the air supply device 124 is connected to an air supply pipe 125. The air supply pipe 125 is connected to the limiting pipe 102, and the limiting pipe 102 is connected to the vertical guide cylinder 105 through a first conductive member 126. A second conductive member 127 connected to the vertical guide cylinder 105 is installed on the top of the supporting hanger 104, and the first conductive member 126 and the second conductive member 127 are coaxially arranged. The side surface of the second conductive member 127 is connected to an air release pipe 128, and an electromagnetic valve 129 is fixedly installed on the air release pipe 128.

[0042] Furthermore, a piston sealing member 130 is slidingly provided inside the limiting pipe 102, a moving rod 131 is fixed at the bottom of the piston sealing member 130, a force-bearing moving disk 132 is fixed at the bottom of the moving rod 131, a limiting slide 133 is opened on the side of the limiting pipe 102 and is located below the supporting hanger 104, and a counterweight 134 is fixed on the side of the moving rod 131 and slides with the limiting slide 133, so that the piston sealing member 130 can be guaranteed not to deflect during the up and down movement.

[0043] Specific embodiment 2, based on specific embodiment 1, as Figure 4 、 Figure 6 and Figure 13 As shown, the steel rope traction part includes guide rope wheels 135 installed on both sides of the lifting opening 101 below, and a guide rope opening 136 corresponding to the guide rope wheels 135 is opened on the top of the supporting hanger 104. A vertical connecting plate 137 is fixedly provided on the top of the supporting hanger 104, and two winding shafts 138 are symmetrically arranged on the vertical connecting plate 137. Steel rope winding wheels 139 and transmission wheels 140 are fixedly installed on the winding shafts 138 respectively. The two transmission wheels 140 are connected by a transmission belt 141. A traction motor 142 connected to the corresponding winding shaft 138 is installed on one side of the vertical guide cylinder 105. In this way, the synchronous rotation of the two winding shafts 138 can be controlled by the traction motor 142, thereby realizing the synchronous winding or releasing action of the two steel rope winding wheels 139.

[0044] In this embodiment of the invention, Figure 14 As shown, the hose clamping mechanism 2 includes a clamping control shaft 202 rotatably arranged between the mounting plates 119, a toothed clamping portion 203 (arc-shaped structure) coaxial with the clamping control shaft 202 is arranged on the outer side of the clamping control shaft 202, a flange support 201 is fixedly arranged on the peripheral side of the toothed clamping portion 203, the toothed clamping portion 203 is connected to the clamping control shaft 202 through a fixing member, a toothed driving plate 204 is meshed with one side of the toothed clamping portion 203 (the toothed driving plate 204 is slidably fitted inside the guide seat 120), a U-shaped seat 205 slidably fitted with the limiting guide port 2 109 is fixed on the top of the toothed driving plate 204, and the limiting guide port 2 109 and the guide seat 120 are connected together. The same function ensures that the toothed drive plate 204 and the U-shaped seat 205 move up and down smoothly. The U-shaped seat 205 slides and fits inside the transmission notch 116, and the second linkage rod 206 fixed on the top of the U-shaped seat 205 slides and fits inside the transmission slide 115 below. That is, in the process of driving the first linkage rod to move synchronously by the up and down movement of the lifting drive frame 110, the first linkage rod is used to push the transmission rocker 114 to rotate, and then the second linkage rod 206 is driven to move up and down through the transmission rocker 114. During this process, the first linkage rod and the corresponding transmission slide 115 slide relative to each other, and at the same time, the second linkage rod 206 slides relative to each other with the corresponding transmission slide 115.

[0045] In this embodiment of the invention, Figure 2 and Figure 15As shown, the hose positioning mechanism 3 includes a conducting piston 301 that is slidably fitted inside the vertical guide cylinder 105, a conducting hole 302 is provided on the side of the conducting piston 301, and a limiting opening 303 that is slidably fitted with the limiting slide rail 123 is provided on the side of the conducting piston 301. The above structure ensures that the conducting piston 301 will not deflect during the up and down movement. An air guide outer tube 304 is fixed to the bottom of the conducting piston 301, and the conducting hole 302 is connected to the inner cavity of the air guide outer tube 304. An air guide inner tube 305 is sealed and slidably fitted inside the air guide outer tube 304, and the air guide inner tube 305 is fixed on the side There is a steel rope connection part 306, and two steel ropes are fixed on the top of the steel rope connection part 306. The up and down movement of the steel rope connection part 306 can be achieved by pulling the steel ropes. The bottom of the air guide inner tube 305 is connected to a hollow mounting part 307, and an air bag 308 is provided in the annular cavity on the side of the hollow mounting part 307. The inner wall of the hollow mounting part 307 is provided with an air supply hole connected to the inside of the air bag 308. The air entering the air guide outer tube 304 through the conducting channel 302 enters the hollow mounting part 307 through the air guide inner tube 305, and then enters the air bag 308 through each air supply hole to inflate it.

[0046] In the initial state, the guide piston 301 under the action of the steel rope is against the limit plate 121, the top of the air guide inner tube 305 is against the top of the guide piston 301, the hollow mounting portion 307 is between the load-bearing hanger 104 and the support ring 117, and the linkage frame 111 is in a lower position under the action of the cylinder 112. At this time, the toothed driving plate 204 is close to the bottom of the load-bearing hanger 104, and the end of the toothed clamping portion 203 close to the flange support 201 deviates from the limit pipe 102 (that is, the flange support 201 is close to the toothed driving plate 204 at this time), and then the walking mechanism on the guide rail is driven The lifting mechanism moves together to the top of the loading and unloading area and aligns with a PTFE metal hose 4 (a hose placement rack is provided in the loading and unloading area, on which a certain number of PTFE metal hoses 4 are placed, and the flanges on the top of the PTFE metal hoses 4 are supported by supporting rods on both sides), and then the lifting mechanism gradually controls the lifting mechanism 1 to move downward until it reaches the set position (set by the control system). At this time, the limiting pipe 1 102 and the limiting pipe 2 103 are respectively inserted into the two opposite flange holes on the flange at the top of the PTFE metal hose 4, thereby realizing the limitation of the PTFE metal hose 4 at the bottom of the lifting mechanism 1.

[0047] Then, the two winding shafts 138 are controlled to rotate synchronously by the traction motor 142, thereby realizing the synchronous rotation of the two steel rope winding wheels 139. In this process, the steel ropes on the two steel rope winding wheels 139 are gradually released. Under the action of the steel ropes, the entire hose positioning mechanism 3 gradually moves downward, and the gas guide outer tube 304 is driven downward by the gas guide inner tube 305. When the conducting piston 301 moves downward and disengages from the limit plate 121 and rests on the limit ring 122, the conducting channel 302 on the conducting piston 301 is concentrically aligned with the first conducting member 126 and the second conducting member 127. Since the counterweight 134 in the initial state is against the bottom of the limit slide 133, the force-bearing moving disk 132 is close to the bottom of the limit pipe 102, and the piston sealing member 130 is in Below the first conducting member 126 (i.e., the first conducting member 126, the limiting pipe 102 and the air supply pipe 125 are interconnected at this time), the hose positioning mechanism 3 continues to descend through the steel rope control until the hollow mounting portion 307 reaches the set position inside the polytetrafluoroethylene metal hose 4 (i.e., the hollow mounting portion 307 is close to the lower flange on the polytetrafluoroethylene metal hose 4 at this time). During this process, the inner air guide tube 305 slides downward relative to the outer air guide tube 304, and the outer air guide tube 304 no longer descends. At this time, the preliminary positioning of the polytetrafluoroethylene metal hose 4 is achieved through the hollow mounting portion 307, the inner air guide tube 305 and the outer air guide tube 304 to prevent the polytetrafluoroethylene metal hose 4 from shaking significantly during the lifting process, thereby improving the stability and safety of the polytetrafluoroethylene metal hose 4 during the lifting process.

[0048] Then, the air is delivered to the limiting pipe 102 along the air supply pipe 125 through the air supply device 124, and then enters the outer air guide tube 304 through the first guide member 126 and the guide channel 302, enters the inner cavity of the hollow mounting portion 307 through the inner air guide tube 305, and enters the air bag 308 through each air delivery hole to inflate it, so that the inflated air bag 308 is tightly attached to the inner wall of the PTFE metal hose 4, and then the entire hose positioning mechanism 3 is controlled to descend a certain distance (the distance is set by the control system) by the steel rope again, and the air is inflated. The gripping force between the inflated airbag 308 and the inner wall of the PTFE metal hose 4 and the gravity of the air guide inner tube 305 and other components generate a downward pulling force on the vertical PTFE metal hose 4, thereby ensuring that the PTFE metal hose 4 is always in an upright and stable state during the lifting process, thereby greatly avoiding the shaking of the PTFE metal hose 4 during the lifting process. Subsequently, the two lifting drive frames 110 on the linkage frame 111 are controlled by the cylinder 112 to move upward synchronously, and the transmission rocker 114 is driven to rotate by the first linkage rod at the bottom of the lifting drive frame 110 (such as Figure 3As shown in FIG. 1 ), during the rotation of the transmission rocker 114, the U-shaped seat 205 and the toothed driving plate 204 thereon are driven to move upward by the second linkage rod 206. The upwardly moving toothed driving plate 204 drives the toothed clamping portion 203 to rotate. When the linkage frame 111 is controlled to descend to the set position by the cylinder 112, the arc-shaped toothed clamping portion 203 rotates close to the end of the flange support member 201 and is inserted into the limiting pipe 1 102 and the limiting pipe 2 103. At this time, the flange support members 201 on both sides are tightly attached to the PTFE metal hose 4 The bottom of the top flange supports the PTFE metal hose 4 through the hose clamping mechanism 2 on both sides. During this process, the toothed clamping part 203 inserted into the limiting pipe 102 and the limiting pipe 2 103 pushes the force-bearing moving disk 132 to move up along the inner wall of the limiting pipe 102. When the flange supporting part 201 is tightly attached to the bottom of the top flange of the PTFE metal hose 4, the piston sealing part 130 just realizes the sealing of the air supply pipe 125 and the first conducting part 126, thereby ensuring that the expanded airbag 308 is in an inflated state.

[0049] Then the lifting mechanism is controlled to move upward and back to the initial position again through the lifting mechanism, and then the clamped PTFE metal hose 4 is lifted to the top of the spraying area by the movement of the walking mechanism on the guide rail. A spray barrel is provided in the spraying area and a plurality of nozzles are provided in a circumferential array on the inner wall of the spray barrel. Then the lifting mechanism is controlled to move downward to the set position again through the lifting mechanism. At this time, the lifted PTFE metal hose 4 enters the spray barrel. After the spraying procedure is completed, the lifting mechanism is controlled to move upward and back to the initial position again through the lifting mechanism, and the PTFE metal hose 4 that has been sprayed is lifted to the loading and unloading area by the movement of the walking mechanism on the guide rail, and then the lifting mechanism is controlled to descend to the set position by the lifting mechanism. At this time, the PTFE metal hose 4 falls back onto the hose placement rack and is supported by the support rod, which controls the opening of the solenoid valve on the air release pipe 128. 129, so that the air in the airbag 308 is discharged along the input hole, the hollow mounting part 307, the air guide inner tube 305, the air guide outer tube 304, the conducting channel 302, the second conducting part 127 and the air release pipe 128, so that the internal supporting effect of the airbag 308 on the inner wall of the polytetrafluoroethylene metal hose 4 is released. After the entire hose positioning mechanism 3 is lifted and reset by the steel rope, the solenoid valve 129 is controlled to be closed, and the linkage frame 111 is controlled to descend and reset by the cylinder 112 again. At this time, the toothed clamping parts 203 and the flange supporting parts 201 on both sides release their support for the flange, and then the lifting mechanism is controlled to move up and reset and move to the top of the next polytetrafluoroethylene metal hose 4 by the lifting mechanism, and the lifting mechanism is controlled to descend to the set position by the lifting mechanism. Subsequently, a certain number of polytetrafluoroethylene metal hoses 4 can be lifted in succession according to the same control method as above.

[0050] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these 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 any one or more embodiments or examples.

[0051] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the content of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. An automatic hoisting device for a spraying production line of a PTFE metal hose, characterized in that: It comprises a hoisting mechanism (1), two hose clamping mechanisms (2) symmetrically mounted on the bottom of the hoisting mechanism (1), and a hose positioning mechanism (3) slidably arranged on the axis of the hoisting mechanism (1), wherein the hose clamping mechanism (2) is used for clamping and fixing the polytetrafluoroethylene metal hose (4), and the hose positioning mechanism (3) is used for axial positioning of the polytetrafluoroethylene metal hose (4); The hoisting mechanism (1) comprises: A lifting opening (101), wherein a limiting pipe 1 (102) and a limiting pipe 2 (103) are fixed on opposite sides of the lifting opening (101), and the limiting pipe 1 (102) and the limiting pipe 2 (103) are used for plugging with the flange holes on the PTFE metal hose (4); A seesaw-type transmission part is symmetrically arranged on both sides of the lifting port (101), the seesaw-type transmission part and the hose clamping mechanism (2) are arranged in a one-to-one correspondence, and the hose clamping mechanism (2) is slidably connected to the corresponding seesaw-type transmission part; a lifting drive unit for driving the two seesaw-type transmission units to rotate synchronously, and realizing circumferential movement of the flange support member (201) on the hose clamping mechanism (2) through the lifting drive unit and the seesaw-type transmission unit; A steel rope traction portion, wherein a movable end of the steel rope on the steel rope traction portion is connected to the hose positioning mechanism (3), and the steel rope traction portion is used to transport the hose positioning mechanism (3) into the interior of the clamped and fixed polytetrafluoroethylene metal hose (4).

2. The automatic hoisting equipment for a spraying production line of a PTFE metal hose according to claim 1, characterized in that: The hoisting mechanism (1) further comprises a load-bearing hanger (104), the hoisting opening (101) being arranged at the axis position of the load-bearing hanger (104), a vertical guide tube (105) being fixedly installed inside the hoisting opening (101) above the load-bearing hanger (104), a suspension frame (106) being fixedly installed on the top of the vertical guide tube (105), the suspension frame (106) being fixedly connected to the load-bearing hanger (104) via a limiting guide frame (107), and the limiting pipe 1 (102) and the limiting pipe 2 (103) being fixedly installed on the load-bearing hanger (104).

3. The automatic hoisting equipment for a spraying production line of a PTFE metal hose according to claim 2, characterized in that: The top of the load-bearing hanger (104) is symmetrically provided with two limit guide openings (108), and the bottom of the load-bearing hanger (104) is symmetrically provided with two limit guide openings (109). The lifting drive unit includes two symmetrically arranged lifting drive frames (110). The lifting drive frames (110) are slidably fitted inside the limit guide opening (108). The vertical guide tube (105) is externally sleeved with a linkage frame (111) fixed to the lifting drive frame (110). The linkage frame (111) is slidably arranged between the two limit guide frames (107). The output end of the cylinder (112) installed at the bottom of the suspension frame (106) is connected to the linkage frame (111).

4. The automatic hoisting equipment for a spraying production line of a PTFE metal hose according to claim 3, characterized in that: The seesaw type transmission part includes a seesaw shaft (113) rotatably arranged on opposite sides of the lifting port (101), a transmission seesaw (114) fixedly arranged on the side surface of the seesaw shaft (113), two transmission slideways (115) symmetrically arranged on the transmission seesaw (114), a transmission notch (116) connected to the transmission slideway (115) below is opened on the surface of the transmission seesaw (114), and a first linkage rod connected to the corresponding lifting drive frame (110) is slidably arranged inside the upper transmission slideway (115).

5. The automatic hoisting equipment for a spraying production line of a PTFE metal hose according to claim 4, characterized in that: A support ring (117) coaxial with the support hanger (104) is provided below the support hanger (104), two support plates (118) are symmetrically fixed on the top of the support ring (117), the limiting pipe 1 (102) and the limiting pipe 2 (103) are fixedly connected to the corresponding support plates (118), two groups of mounting plates (119) are symmetrically fixed on the inner wall of the support ring (117), and a guide seat (120) fixed to the support ring (117) is provided on the inner side of each group of mounting plates (119), and a limiting disk (121) and a limiting ring (122) are fixed on the inner wall of the vertical guide cylinder (105), respectively, the limiting disk (121) is arranged close to the top of the vertical guide cylinder (105), and the limiting ring (122) is arranged close to the bottom of the vertical guide cylinder (105), and a limiting slide rail (123) is fixed on the inner wall of the vertical guide cylinder (105).

6. The automatic hoisting equipment for a spraying production line of a PTFE metal hose according to claim 5, characterized in that: An air supply device (124) is installed on the top of the supporting hanger (104), and an air outlet of the air supply device (124) is connected to an air supply pipe (125). The air supply pipe (125) is connected to the limiting pipe (102). The limiting pipe (102) is connected to the vertical guide cylinder (105) through a first conductive member (126). A second conductive member (127) connected to the vertical guide cylinder (105) is installed on the top of the supporting hanger (104). The first conductive member (126) and the second conductive member (127) are coaxially arranged. The second conductive member (127) is connected to a side surface thereof with an air release pipe (128). A solenoid valve (129) is fixedly installed on the air release pipe (128).

7. The automatic hoisting equipment for a spraying production line of a PTFE metal hose according to claim 6, characterized in that: A piston sealing member (130) is slidingly provided inside the limiting pipe (102), a moving rod (131) is fixed at the bottom of the piston sealing member (130), a force-bearing moving disk (132) is fixed at the bottom of the moving rod (131), a limiting slideway (133) located below the supporting hanger (104) is provided on the side surface of the limiting pipe (102), and a counterweight (134) that slides with the limiting slideway (133) is fixed on the side surface of the moving rod (131).

8. The automatic hoisting equipment for a spraying production line of a PTFE metal hose according to claim 7, characterized in that: The steel rope traction part includes guide rope wheels (135) installed on both sides of the hoisting opening (101) below, and a guide rope opening (136) corresponding to the guide rope wheels (135) is opened on the top of the supporting hanger (104). A vertical connecting plate (137) is fixedly provided on the top of the supporting hanger (104), and two reeling shafts (138) are symmetrically rotated on the vertical connecting plate (137). A steel rope reeling wheel (139) and a transmission wheel (140) are fixedly installed on the reeling shaft (138), respectively. The two transmission wheels (140) are connected by a transmission belt (141), and a traction motor (142) connected to the corresponding reeling shaft (138) is installed on one side of the vertical guide cylinder (105).

9. The automatic hoisting equipment for a spraying production line of a PTFE metal hose according to claim 8, characterized in that: The hose clamping mechanism (2) includes a clamping control shaft (202) rotatably arranged between the mounting plates (119), a toothed clamping portion (203) coaxial with the clamping control shaft (202) is arranged on the outer side of the clamping control shaft (202), the flange support member (201) is fixedly arranged on the peripheral side of the toothed clamping portion (203), the toothed clamping portion (203) and the clamping control shaft (202) are connected via a fixing member, a toothed driving plate (204) is meshedly arranged on one side of the toothed clamping portion (203), a U-shaped seat (205) slidingly engaged with the second limiting guide port (109) is fixed on the top of the toothed driving plate (204), the U-shaped seat (205) is slidingly engaged with the transmission notch (116), and a second linkage rod (206) fixed on the top of the U-shaped seat (205) is slidingly engaged with the transmission slideway (115) below.

10. The automatic hoisting equipment for a spraying production line of a PTFE metal hose according to claim 9, characterized in that: The hose positioning mechanism (3) comprises a conducting piston (301) that is slidably engaged with the interior of the vertical guide cylinder (105); a conducting channel (302) is provided on the circumferential side of the conducting piston (301); a limiting opening (303) that is slidably engaged with the limiting slide rail (123) is provided on the circumferential side of the conducting piston (301); an air guide outer tube (304) is fixed to the bottom of the conducting piston (301); the conducting channel (302) is in contact with the interior of the air guide outer tube (304); The cavities are connected, the inner air guide tube (305) is sealed and slidably matched inside the outer air guide tube (304), a steel rope connecting portion (306) is fixed to the side surface of the inner air guide tube (305), and a hollow mounting portion (307) is provided at the bottom of the inner air guide tube (305), an air bag (308) is provided in the annular cavity on the side surface of the hollow mounting portion (307), and an air delivery hole communicating with the interior of the air bag (308) is opened on the inner wall of the hollow mounting portion (307).

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