Lifting system for production of polytetrafluoroethylene metal hose

Abstract

The invention is applicable to the technical field of lifting appliances, and provides a lifting system for production of a polytetrafluoroethylene metal hose, which comprises a lifting appliance hung on a lifting hook of a lifting machine; the lifting appliance comprises a bearing frame; the bearing frame comprises a bearing disc; a plurality of arc-shaped sleeves uniformly penetrate through and are fixed on the bottom surface of the bearing disc; an arc-shaped outer gear ring is slidably arranged in the arc-shaped sleeve; a ball head matched with the ball seat is arranged in the ball seat; a lifting part meshed and matched with each arc-shaped outer gear ring is arranged on the bottom surface of the bearing disc in a penetrating and sliding manner; a supporting spring is fixedly connected between the lifting part and the bottom surface of the bearing disc; the side face of the baffle is rotationally provided with a lower half retaining pipe matched with the metal hose. An upper half retaining pipe is arranged between the two sliding rods in a sliding manner; according to the device, a lifting tool integrating lifting, spraying and clamping is provided, the metal hose does not need to be repeatedly taken manually, the working procedure is optimized, the spraying quality is improved, and the working efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of lifting slings, and more particularly to a lifting and hoisting system for producing polytetrafluoroethylene metal hoses. Background Art

[0002] PTFE metal hose is a composite hose that combines the properties of polytetrafluoroethylene (PTFE, commonly known as "Teflon") and metal materials. It has corrosion resistance, high temperature resistance, flexibility and pressure resistance. It is widely used in chemical, pharmaceutical, food, semiconductor and other industries. It consists of an inner lining layer, a reinforcement layer and an outer layer. The PTFE dispersion is sprayed on the surface of the inner lining layer to give the inner lining layer corrosion resistance, non-stickiness, low friction and other properties.

[0003] During the transportation of metal hoses, they need to be hoisted with a sling before transportation. However, when the metal hoses are bundled and hoisted, they are very likely to fall too much and bend excessively, which can lead to damage to the hose body and cause safety accidents.

[0004] At the same time, when spraying the inner wall of the metal hose, most of the time the metal hose is placed flat on the processing table, the connecting flanges at both ends of the metal hose are fixed, and the nozzle is inserted into the metal hose for spraying. However, the metal hose body is not effectively supported and protected, which can easily cause the metal hose to fluctuate during the spraying process, affecting the normal spraying and reducing the spraying quality.

[0005] The above-mentioned transportation of the metal hose and the clamping of the spraying production are performed separately, and the metal hose needs to be taken up repeatedly by humans, which is a cumbersome process and reduces work efficiency.

[0006] Therefore, it is very necessary to design a lifting device that integrates safe lifting and spray protection. Summary of the Invention

[0007] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a lifting and hoisting system for the production of polytetrafluoroethylene metal hoses. When the hoist is in the lifting state, the upper half retaining tube and the lower half retaining tube remain separated and expanded, which is convenient for placing and taking out the metal hose, and lifting the flat metal hose to avoid falling and deformation; when the hoist is not in the lifting state, through the linkage cooperation between the various components, each group of upper half retaining tubes is driven to synchronously descend and cover the corresponding lower half retaining tubes, completing the synchronous protective clamping of each group of metal hoses, preventing the metal hoses from fluctuating during the subsequent spraying process, and improving the spraying quality.

[0008] To achieve the above object, the present invention provides the following technical solutions: A lifting and hoisting system for the production of polytetrafluoroethylene metal hoses, comprising a sling hung on a hook of a lifting and hoisting machine; the sling comprises a load-bearing frame; the load-bearing frame comprises a load-bearing plate; a plurality of arc-shaped sleeves are evenly fixed through the bottom surface of the load-bearing plate; an arc-shaped outer gear ring is slidably provided inside the arc-shaped sleeve; a ball seat is fixed at the end of the arc-shaped outer gear ring; a ball head adapted thereto is provided inside the ball seat; a lifting part is slidably provided on the bottom surface of the load-bearing plate to engage with each arc-shaped outer gear ring; a support spring is fixedly connected between the lifting part and the bottom surface of the load-bearing plate; a lifting ear is fixed on the surface of the load-bearing plate; the load-bearing plate A number of baffles are evenly fixed on the side surface of the disk; a lower half retaining tube that is compatible with the metal hose is rotatably set on the side surface of the baffle; ear plates are symmetrically fixed on the side surface of the lower half retaining tube; a sliding rod is fixed on the surface of the ear plate; a stopper is fixed on the end of the slide rod; an upper half retaining tube is slidingly arranged between the two slide rods; slide plates that slide in cooperation with the corresponding slide rods are symmetrically fixed on the side surface of the upper half retaining tube; a tension spring mounted on the corresponding slide rod is fixedly connected between the stopper and the slide plate; a number of extension plates are evenly fixed on the bottom surface of the supporting disk; a semi-annular support plate coaxial with the lower half retaining tube is fixed on the end of the extension plate.

[0009] The present invention is further configured as follows: an axial hole is opened on the side of the baffle; an annular groove is opened on the inner wall of the axial hole; a rotating shaft that rotates with the axial hole is fixed to the end of the lower half retaining tube; an annular rail that rotates with the annular groove is fixed to the circumferential side of the rotating shaft; and a counterweight rib is fixed to the circumferential side of the lower half retaining tube.

[0010] The present invention is further configured as follows: the ends of the lower half retaining tube and the upper half retaining tube are both chamfered; both ends of the metal hose are provided with connecting flanges; the inner walls of the upper half retaining tube and the lower half retaining tube are symmetrically provided with positioning grooves that are compatible with the connecting flanges; the inner wall of the positioning groove on the upper half retaining tube is provided with an arc-shaped rubber plate; the inner wall of the positioning groove on the lower half retaining tube is provided with an arc-shaped magnet for magnetically attracting the connecting flange.

[0011] The present invention is further configured as follows: the lifting part includes a support plate; a number of tooth plates that mesh with the arc-shaped outer gear ring are evenly fixed on the surface of the support plate; the support plate and the carrying plate are fixedly connected by a support spring; an avoidance groove is provided on the outer peripheral side of the arc-shaped sleeve; a number of sliding grooves that are connected to the top of the corresponding arc-shaped sleeve are evenly provided on the surface of the carrying plate; the tooth plates slide in cooperation with the sliding grooves; universal wheels are installed on the bottom surface of the support plate and the outer peripheral side of the arc-shaped sleeve.

[0012] The present invention is further configured as follows: a support seat is fixed on the top of the baffle; a guide cavity is provided on the surface of the support seat; a guide groove is provided on the bottom surface of the guide cavity; an inclined guide plate is slidingly provided on the surface of the support seat; a guide plate that slides with the guide cavity is fixed on the bottom surface of the inclined guide plate; a return spring is fixed between the guide plate and the inner wall of the guide cavity; a vertical plate that slides with the guide groove is fixed on the bottom surface of the guide plate; a ring is fixed on the bottom end of the vertical plate; a rotating tube is rotatably provided inside the ring.

[0013] The present invention is further configured as follows: a rotating hole is opened on the inner wall of the shaft hole; a connecting rod that rotates with the rotating hole is fixed on the end of the rotating shaft; a sliding groove is opened on the peripheral side of the connecting rod; and a sliding rail that slides with the sliding groove is fixed on the inner wall of the rotating tube.

[0014] The present invention is further configured as follows: a screw hole is provided on the peripheral side surface of the arc-shaped outer gear ring near the ball seat; a screw is threaded into the screw hole; an annular handle is fixed to the top end of the screw rod, and a guide ball is fixed to its bottom end; a first friction wheel is fixed to the end of the rotating tube; a plurality of ear seats are evenly fixed to the surface of the carrier plate; a connecting shaft is rotatably provided through the side surface of the ear seat; a second friction wheel is fixed to one end of the connecting shaft, and a bevel gear is fixed to the other end thereof; a bevel gear ring meshing with each bevel gear is rotatably provided on the surface of the carrier plate; a gear ring is fixed to the inner wall of the bevel gear ring; a servo motor is installed on the surface of the carrier plate; a driving gear meshing with the gear ring is fixed to the output end of the servo motor.

[0015] The present invention is further configured as follows: it also includes a spray rack adapted to the sling; the spray rack includes a storage box; electric push rods are symmetrically fixed to the sides of the storage box; an L-shaped plate is fixed to the telescopic end of the electric push rod; a cover plate is fixed to the end of the L-shaped plate; a rotating opening adapted to the arc-shaped sleeve is opened on the side of the cover plate.

[0016] The present invention is further configured as follows: a driving motor is fixed to the side of the storage box; a reciprocating screw is fixed to the output end of the driving motor; a guide rod is fixed to the side of the storage box; a sliding sleeve that is compatible with the reciprocating screw is slidably provided on the guide rod; a support rod is fixed to the top of the sliding sleeve; a horizontal tube is fixed to the top of the support rod; a spray pipe is provided inside the horizontal tube; a nozzle is fixed to the end of the spray pipe; a fastening bolt is threaded through the side surface of the horizontal tube; and a rubber pressure plate is fixed to the bottom end of the fastening bolt.

[0017] The advantages of the present invention are: 1. When the sling of the present invention is in the hoisting state, the upper holding tube and the lower holding tube remain in a separated and unfolded state, which is convenient for putting in and taking out the metal hose, and lifting the flat metal hose to avoid falling and deformation; when the sling is not in the hoisting state, through the linkage cooperation between the various components, the upper holding tubes of each group are driven to synchronously descend and cover the corresponding lower holding tubes, completing the synchronous protective clamping of each group of metal hoses, preventing the metal hoses from fluctuating during the subsequent spraying process, and improving the spraying quality; the sling that integrates lifting and spraying clamping does not require manual repeated picking up of the metal hose, optimizes the process, and improves work efficiency.

[0018] 2. The present invention lifts the sling containing the metal hose into the storage box, closes the two covers, and the sling can rotate freely along the rotating mouth, which is convenient for spraying different metal hoses. A group of metal hoses are aligned with the spray pipe, and the corresponding screw is rotated to make the guide ball rotate and descend to squeeze the inclined guide plate, driving the first friction wheel to move close to the second friction wheel until it is tightened, controlling the rotation of the conical gear ring, driving the corresponding upper half holding tube and lower half holding tube together with the clamped metal hose to rotate synchronously, coordinating with the movement of the spray pipe, realizing all-round spraying of the inner wall of the metal hose, and improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a structural schematic diagram of a lifting and hoisting system for producing polytetrafluoroethylene metal hoses according to the present invention in a sling storage state.

[0020] Figure 2 For the present invention Figure 1 Schematic diagram of the structure from the front view angle.

[0021] Figure 3 This is a structural schematic diagram of a lifting and hoisting system for producing polytetrafluoroethylene metal hoses according to the present invention, with the hoisting device in an unfolded state.

[0022] Figure 4 For the present invention Figure 3 Schematic diagram of the structure from the front view angle.

[0023] Figure 5 It is a structural schematic diagram of the carrier frame of the present invention.

[0024] Figure 6 It is a structural schematic diagram of the supporting frame of the present invention from another angle.

[0025] Figure 7 It is a structural schematic diagram of the arc-shaped outer gear ring of the present invention.

[0026] Figure 8 It is a schematic structural diagram of the lower half retaining tube of the present invention.

[0027] Figure 9It is a structural schematic diagram of the upper half retaining tube of the present invention.

[0028] Figure 10 It is a structural schematic diagram of the lifting part of the present invention.

[0029] Figure 11 It is a structural schematic diagram of the screw of the present invention.

[0030] Figure 12 It is a structural schematic diagram of the inclined guide plate of the present invention.

[0031] Figure 13 It is a structural schematic diagram of the spraying rack of the present invention.

[0032] Figure 14 It is a structural schematic diagram of the hanger and spray rack assembly of the present invention.

[0033] Figure 15 For the present invention Figure 14 A magnified view of area A.

[0034] Figure 16 For the present invention Figure 14 Schematic diagram of the structure from the front view angle.

[0035] In the figure: 1, sling; 2, bearing frame; 3, bearing plate; 4, arc sleeve; 5, arc outer gear ring; 6, ball seat; 7, ball head; 8, lifting part; 9, support spring; 10, lifting ear; 11, baffle; 12, metal hose; 13, lower half holding tube; 14, ear plate; 15, slide bar; 16, block; 17, upper half holding tube; 18, slide plate; 19, tension spring; 20, annular groove; 21, rotating shaft; 22, annular rail; 23, counterweight rib; 24, connecting flange; 25, positioning groove; 26, arc rubber plate; 27, support plate; 28, tooth plate; 29, avoidance groove; 30, slide; 31, universal wheel; 32, support seat; 33, guide cavity; 34, guide groove; 35, inclined guide plate; 36, guide plate; 37, reset spring; 38, vertical Plate; 39, collar; 40, rotating tube; 41, rotating hole; 42, connecting rod; 43, sliding rail; 44, screw hole; 45, screw; 46, ring handle; 47, first friction wheel; 48, ear seat; 49, connecting shaft; 50, second friction wheel; 51, bevel gear; 52, bevel gear ring; 53, gear ring; 54, servo motor; 55, drive gear; 56, spray rack; 57, storage box; 58, electric push rod; 59, L-shaped plate; 60, cover; 61, rotating mouth; 62, drive motor; 63, reciprocating screw; 64, guide rod; 65, sliding sleeve; 66, support rod; 67, cross tube; 68, spray pipe; 69, nozzle; 70, fastening bolt; 71, shaft hole; 72, guide ball; 73, extension plate; 74, semi-annular support plate. DETAILED DESCRIPTION

[0036] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0037] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0038] In the present invention, unless otherwise specified, directions such as "up" and "down" are generally used with respect to the directions shown in the drawings, or with respect to the vertical, perpendicular or gravity directions; similarly, for ease of understanding and description, "left" and "right" are generally used with respect to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.

[0039] For example 1, please refer to Figure 1-16 , the present invention provides the following technical solutions: A lifting and hoisting system for producing polytetrafluoroethylene metal hoses, specifically, includes a sling 1 hung on a hook of a lifting and hoisting machine; the sling 1 includes a carrier 2; the carrier 2 includes a carrier plate 3; a plurality of arc-shaped sleeves 4 are evenly fixed on the bottom surface of the carrier plate 3; an arc-shaped outer gear ring 5 is slidably provided inside the arc-shaped sleeve 4; a ball seat 6 is fixed at the end of the arc-shaped outer gear ring 5; a ball head 7 adapted thereto is provided inside the ball seat 6; a lifting portion 8 is slidably provided on the bottom surface of the carrier plate 3 to engage with each arc-shaped outer gear ring 5; a support spring 9 is fixedly connected between the lifting portion 8 and the bottom surface of the carrier plate 3; a lifting ear 10 is fixed on the surface of the carrier plate 3; a plurality of arc-shaped outer gear rings 5 ​​are evenly fixed on the side surface of the carrier plate 3 Baffle 11; a lower half retaining tube 13 adapted to the metal hose 12 is rotatably provided on the side of the baffle 11; ear plates 14 are symmetrically fixed on the side surfaces of the lower half retaining tube 13; a slide bar 15 is fixed on the surface of the ear plate 14; a stopper 16 is fixed on the end of the slide bar 15; an upper half retaining tube 17 is slidingly arranged between the two slide bars 15; a slide plate 18 slidably matched with the corresponding slide bar 15 is symmetrically fixed on the side surfaces of the upper half retaining tube 17; a tension spring 19 mounted on the corresponding slide bar 15 is fixedly connected between the stopper 16 and the slide bar 18; a number of extension plates 73 are evenly fixed on the bottom surface of the carrying plate 3; a semi-annular support plate 74 coaxially arranged with the lower half retaining tube 13 is fixed on the end of the extension plate 73.

[0040] Working principle of this embodiment 1: When the sling 1 is in the hoisting state, the upper holding tube 17 and the lower holding tube 13 remain in a separated and unfolded state, which is convenient for putting in and taking out the metal hose 12, and lifting the flat metal hose 12 to avoid falling and deformation; when the sling 1 is not in the hoisting state, through the linkage cooperation between the various components, each group of upper holding tubes 17 is driven to synchronously descend and cover the corresponding lower holding tube 13, completing the synchronous protective clamping of each group of metal hoses 12, preventing the metal hoses 12 from fluctuating during the subsequent spraying process, and improving the spraying quality. The sling 1 that integrates lifting and spraying clamping does not require manual repeated picking up of the metal hose 12, optimizes the process, and improves work efficiency.

[0041] For example 2, please refer to Figure 1-16 The second embodiment makes the following improvements on the basis of the first embodiment. Specifically, an axial hole 71 is opened on the side of the baffle 11; an annular groove 20 is opened on the inner wall of the axial hole 71; a rotating shaft 21 that rotates with the axial hole 71 is fixed to the end of the lower half retaining tube 13; an annular rail 22 that rotates with the annular groove 20 is fixed to the side surface of the rotating shaft 21; and a counterweight rib 23 is fixed to the side surface of the lower half retaining tube 13.

[0042] The weight of the counterweight rib 23 is sufficient to enable the lower half retaining tube 13 to maintain the slide bar 15 in a vertically upward position without the action of external force.

[0043] The ends of the lower half retaining tube 13 and the upper half retaining tube 17 are both chamfered; connecting flanges 24 are provided at both ends of the metal hose 12; positioning grooves 25 that are compatible with the connecting flanges 24 are symmetrically opened on the inner walls of the upper half retaining tube 17 and the lower half retaining tube 13; the inner wall of the positioning groove 25 on the upper half retaining tube 17 is provided with an arc-shaped rubber plate; the inner wall of the positioning groove 25 on the lower half retaining tube 13 is provided with an arc-shaped magnet 26 for magnetically attracting the connecting flange 24.

[0044] The ends of the lower half retaining tube 13 and the upper half retaining tube 17 are chamfered so that the ball head 7 can smoothly slide along the chamfered corners to the side surfaces of the lower half retaining tube 13 and the upper half retaining tube 17 .

[0045] The lifting part 8 includes a support plate 27; a number of tooth plates 28 that mesh with the arc-shaped outer gear ring 5 are evenly fixed on the surface of the support plate 27; the support plate 27 and the supporting plate 3 are fixedly connected by a support spring 9; an avoidance groove 29 is provided on the outer peripheral side of the arc-shaped sleeve 4; a number of sliding grooves 30 that are connected to the top of the corresponding arc-shaped sleeve 4 are evenly provided on the surface of the supporting plate 3; the tooth plates 28 slide in cooperation with the sliding grooves 30; universal wheels 31 are installed on the bottom surface of the support plate 27 and the outer peripheral side of the arc-shaped sleeve 4.

[0046] By providing the universal wheels 31 , the spreader 1 can move freely on the ground, thereby improving the flexibility of the spreader 1 .

[0047] A support seat 32 is fixed to the top of the baffle 11; a guide cavity 33 is provided on the surface of the support seat 32; a guide groove 34 is provided on the bottom surface of the guide cavity 33; an inclined guide plate 35 is slidably provided on the surface of the support seat 32; a guide plate 36 that slides with the guide cavity 33 is fixed to the bottom surface of the inclined guide plate 35; a return spring 37 is fixed between the guide plate 36 and the inner wall of the guide cavity 33; a vertical plate 38 that slides with the guide groove 34 is fixed to the bottom surface of the guide plate 36; a ring 39 is fixed to the bottom end of the vertical plate 38; a rotating tube 40 is rotatably provided inside the ring 39.

[0048] A rotating hole 41 is opened on the inner wall of the shaft hole 71; a connecting rod 42 is fixed to the end of the rotating shaft 21 and rotates with the rotating hole 41; a sliding groove is opened on the side surface of the connecting rod 42; a sliding rail 43 is fixed on the inner wall of the rotating tube 40 and slides with the sliding groove.

[0049] A screw hole 44 is provided on the side surface of the arc-shaped outer gear ring 5 near the ball seat 6; a screw rod 45 is screwed into the screw hole 44; a ring handle 46 is fixed to the top of the screw rod 45, and a guide ball 72 is fixed to its bottom end; a first friction wheel 47 is fixed to the end of the rotating tube 40; a number of ear seats 48 are evenly fixed on the surface of the supporting plate 3; a connecting shaft 49 is rotatably provided on the side of the ear seat 48; a second friction wheel 50 is fixed to one end of the connecting shaft 49, and a bevel gear 51 is fixed to the other end; a bevel gear ring 52 meshing with each bevel gear 51 is rotatably provided on the surface of the supporting plate 3; a gear ring 53 is fixed to the inner wall of the bevel gear ring 52; a servo motor 54 is installed on the surface of the supporting plate 3; the control line of the servo motor 54 is electrically connected to the electric control box of the lifting machinery; a driving gear 55 meshing with the gear ring 53 is fixed to the output end of the servo motor 54.

[0050] Working principle of the second embodiment: By hanging the lifting ear 10 on the hook of the lifting machinery, the lifting device 1 is lifted off the ground by the lifting machinery, and the support spring 9 is in a normal state. In this state, the universal wheel 31 on the lifting part 8 is lower than the universal wheel 31 on the arc sleeve 4, and the ball head 7 fits into the rounded position of the end of the upper retaining tube 17. Under the tension of the tension spring 19, the upper retaining tube 17 is pulled to slide up along the slide rod 15 and separate from the lower retaining tube 13, and the entire lifter 1 is in an expanded state.

[0051] Place each group of metal hoses 12 in the corresponding lower half retaining tube 13 in turn, and the connecting flange 24 at the end of the metal hose 12 is placed in the positioning groove 25 in the lower half retaining tube 13, and is adsorbed by the corresponding arc magnet 26. The sling 1 with the metal hose 12 is lifted by a lifting and hoisting machine to prevent the metal hose 12 from falling and deforming during the lifting process.

[0052] For example three, please refer to Figure 1-16The third embodiment makes the following improvements on the basis of the second embodiment. Specifically, it also includes a spray rack 56 adapted to the sling 1; the spray rack 56 includes a storage box 57; electric push rods 58 are symmetrically fixed to the side of the storage box 57; an L-shaped plate 59 is fixed to the telescopic end of the electric push rod 58; a cover plate 60 is fixed to the end of the L-shaped plate 59; a rotating opening 61 adapted to the arc sleeve 4 is opened on the side of the cover plate 60.

[0053] The two rotating openings 61 in the closed state limit the sling 1 to prevent the sling 1 from moving in the vertical direction. In this state, the sling 1 can rotate freely along the rotating openings 61 to facilitate the conversion of different metal hoses 12 positions.

[0054] A driving motor 62 is fixed to the side of the storage box 57; a reciprocating screw 63 is fixed to the output end of the driving motor 62; a guide rod 64 is fixed to the side of the storage box 57; a sliding sleeve 65 that is compatible with the reciprocating screw 63 is slidably provided on the guide rod 64; a support rod 66 is fixed to the top of the sliding sleeve 65; a cross tube 67 is fixed to the top of the support rod 66; a spray pipe 68 is provided inside the cross tube 67; a nozzle 69 is fixed to the end of the spray pipe 68; a fastening bolt 70 is threaded through the side surface of the cross tube 67; a rubber pressure plate is fixed to the bottom end of the fastening bolt 70.

[0055] By tightening the fastening bolt 70, the rubber pressure plate at its bottom end presses the spray tube 68, thereby completing the fixed clamping of the spray tube 68. One end of the spray tube 68 is connected to the external PTFE dispersion storage tank through a hose. A pump for conveying PTFE dispersion is provided inside the PTFE dispersion storage tank, and the infusion port of the pump is connected to the spray tube 68 through a hose.

[0056] The reciprocating screw 63 is a form of a three-dimensional cam pair, which is manifested as two thread grooves with the same pitch and opposite rotation directions, connected at both ends by a transition curve. A slider adapted to the spiral groove on the reciprocating screw 63 is provided inside the sliding sleeve 65. Through the rotation of the reciprocating screw 63, the side of the spiral groove pushes the slider placed in the spiral groove to perform axial reciprocating motion.

[0057] Working principle of the third embodiment: Lift the sling 1 to the top of the storage box 57, slowly release the wire rope on the lifting machinery, so that the sling 1 descends to the storage box 57, and the universal wheel 31 at the bottom of the lifting part 8 first contacts the inner bottom surface of the storage box 57. As the wire rope continues to be released, the sling 1 slides down along the tooth plate 28 under the action of gravity, and the support spring 9 is compressed. During this process, each group of arc-shaped outer gear rings 5 ​​rotates counterclockwise synchronously, and each group of ball heads 7 slides along the chamfer of the corresponding upper half retaining tube 17, squeezing the upper half retaining tube 17, so that the upper half retaining tube 17 slides down along the slide rod 15, and the tension spring 19 is stretched until the upper half retaining tube 17 covers the lower half retaining tube 13. Each group of metal hoses 12 is clamped and fixed between the corresponding upper half retaining tube 17 and the lower half retaining tube 13 to prevent the metal hose 12 from fluctuating during the subsequent spraying process, affecting the spraying effect.

[0058] After the covering is completed, the upper half retaining tube 17 rotates synchronously with the lower half retaining tube 13. When the upper half retaining tube 17 rotates to the inside of the semi-annular support plate 74, the upper half retaining tube 17 rotates away from the ball head 7, and the lower retaining tube 13 rotates to fit with the ball head 7. The semi-annular support plate 74 supports and limits the upper half retaining tube 17, preventing the upper half retaining tube 17 from separating from the lower half retaining tube 13 under the elastic reset action of the tension spring 19 and the action of gravity. That is, the upper half retaining tube 17 and the lower half retaining tube 13 after covering can rotate stably and synchronously between the ball head 7 and the semi-annular support plate 74.

[0059] The sling 1 is rotated along the rotating opening 61 so that a group of metal hoses 12 are aligned with the spray pipe 68, and the screw 45 is rotated to make it rotate and descend, driving the guide ball 72 to gradually squeeze the inclined guide plate 35 during the rotation and descent process, so that the inclined guide plate 35 slides along the guide cavity 33 toward the direction close to the lifting ear 10, and the reset spring 37 is stretched, thereby driving the rotating tube 40 to slide along the sliding groove on the connecting rod 42 until the first friction wheel 47 presses the second friction wheel 50.

[0060] Start the drive motor 62 to drive the reciprocating screw 63 to rotate, thereby driving the sleeve 65 to slide back and forth along the guide rod 64, start the servo motor 54 to drive the drive gear 55 to rotate, thereby driving the gear ring 53 together with the bevel gear ring 52 to rotate, driving the corresponding bevel gear 51 to rotate, and then driving the second friction wheel 50 together with the first friction wheel 47 to rotate synchronously, thereby driving the metal hose 12 clamped and fixed between the upper half retaining tube 17 and the lower half retaining tube 13 to rotate synchronously, and cooperate with the reciprocating movement of the nozzle 69 inside the metal hose 12 to achieve uniform and all-round spraying of the inner wall of the metal hose 12.

[0061] After completing the spraying of a group of metal hoses 12, control the nozzle 69 to move out from the inside of the metal hose 12, and rotate the screw 45 in the opposite direction to drive the guide ball 72 to rotate and rise to disengage from the inclined guide plate 35. Under the elastic reset action of the reset spring 37, the inclined guide plate 35 slides and resets in the direction away from the lifting ear 10, and the first friction wheel 47 is disengaged from the second friction wheel 50. Rotate the hanger 1 so that the adjacent metal hoses 12 rotate to align with the spray pipe 68, and repeat the above operation to complete the spraying of each group of metal hoses 12.

[0062] After all the metal hoses 12 are sprayed, the two electric push rods 58 are controlled to start and extend, driving the two cover plates 60 to slide away synchronously, lifting the sling 1 so that the sling 1 is separated from the storage box 57. During this process, the lifting part 8 slides down and resets under the elastic reset action of the support spring 9, thereby driving each group of arc-shaped outer gear rings 5 ​​to rotate synchronously clockwise until the ball head 7 slides to fit the chamfered position of the upper half retaining tube 17, and under the elastic reset action of the tension spring 19, the upper half retaining tube 17 is driven to slide along the slide rod 15 and separate from the lower half retaining tube 13, making it convenient to take out the metal hose 12.

[0063] In summary, the present invention provides a lifting device that integrates lifting and spraying clamping, which eliminates the need for manual repeated picking up of the metal hose 12, optimizes the process, improves the spraying quality, and improves work efficiency.

[0064] Obviously, the embodiments described above 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 creative efforts should fall within the scope of protection of the present invention.

[0065] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, tasks, devices, components and / or combinations thereof.

[0066] It should be noted that the terms "first," "second," and the like in the specification and claims of this application and the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein.

[0067] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

[0068] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, various improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A lifting and hoisting system for the production of polytetrafluoroethylene metal hoses, comprising a sling (1) hung on a hook of a lifting and hoisting machine; characterized in that: The sling (1) includes a bearing frame (2); the bearing frame (2) includes a bearing plate (3); a plurality of arc-shaped sleeves (4) are evenly fixed through the bottom surface of the bearing plate (3); an arc-shaped outer gear ring (5) is slidably provided inside the arc-shaped sleeve (4); a ball seat (6) is fixed at the end of the arc-shaped outer gear ring (5); a ball head (7) adapted thereto is provided inside the ball seat (6); The bottom surface of the carrier plate (3) is provided with a lifting portion (8) that is slidably provided therethrough and engages with each arc-shaped outer gear ring (5); a support spring (9) is fixedly connected between the lifting portion (8) and the bottom surface of the carrier plate (3); and a lifting lug (10) is fixed on the surface of the carrier plate (3); A plurality of baffles (11) are evenly fixed on the side surface of the carrier plate (3); a lower half retaining tube (13) adapted to the metal hose (12) is rotatably provided on the side surface of the baffle (11); ear plates (14) are symmetrically fixed on the side surface of the lower half retaining tube (13); a sliding rod (15) is fixed on the surface of the ear plate (14); a stopper (16) is fixed on the end of the sliding rod (15); An upper half retaining tube (17) is slidably arranged between the two slide bars (15); a slide plate (18) that slides with the corresponding slide bar (15) is symmetrically fixed to the side surface of the upper half retaining tube (17); a tension spring (19) that is sleeved on the corresponding slide bar (15) is fixedly connected between the stopper (16) and the slide plate (18); a plurality of extension plates (73) are evenly fixed to the bottom surface of the supporting plate (3); a semi-annular support plate (74) that is coaxial with the lower half retaining tube (13) is fixed to the end of the extension plate (73).

2. A lifting and hoisting system for producing PTFE metal hose according to claim 1, characterized in that: An axial hole (71) is formed on the side of the baffle (11); an annular groove (20) is formed on the inner wall of the axial hole (71); a rotating shaft (21) rotatably engaged with the axial hole (71) is fixed to the end of the lower half retaining tube (13); an annular rail (22) rotatably engaged with the annular groove (20) is fixed to the circumferential side of the rotating shaft (21); and a counterweight rib (23) is fixed to the circumferential side of the lower half retaining tube (13).

3. A lifting and hoisting system for producing PTFE metal hoses according to claim 2, characterized in that: The ends of the lower half retaining tube (13) and the upper half retaining tube (17) are both chamfered; both ends of the metal hose (12) are provided with connecting flanges (24); the inner walls of the upper half retaining tube (17) and the lower half retaining tube (13) are symmetrically provided with positioning grooves (25) adapted to the connecting flanges (24); the inner wall of the positioning groove (25) on the upper half retaining tube (17) is provided with an arc-shaped rubber plate; the inner wall of the positioning groove (25) on the lower half retaining tube (13) is provided with an arc-shaped magnet (26) for magnetically attracting the connecting flange (24).

4. A lifting and hoisting system for producing polytetrafluoroethylene metal hoses according to claim 3, characterized in that: The lifting portion (8) includes a support plate (27); a plurality of tooth plates (28) meshing with the arc-shaped outer gear ring (5) are evenly fixed on the surface of the support plate (27); the support plate (27) and the supporting plate (3) are fixedly connected via a support spring (9); an avoidance groove (29) is provided on the outer peripheral side of the arc-shaped sleeve (4); a plurality of sliding grooves (30) communicating with the top ends of the corresponding arc-shaped sleeves (4) are evenly provided on the surface of the supporting plate (3); the tooth plates (28) are slidably engaged with the sliding grooves (30); and universal wheels (31) are installed on the bottom surface of the support plate (27) and the outer peripheral side of the arc-shaped sleeve (4).

5. A lifting and hoisting system for producing PTFE metal hoses according to claim 4, characterized in that: A support seat (32) is fixed on the top of the baffle (11); a guide cavity (33) is provided on the surface of the support seat (32); a guide groove (34) is provided on the bottom surface of the guide cavity (33); an inclined guide plate (35) is slidably provided on the surface of the support seat (32); a guide plate (36) that is slidably matched with the guide cavity (33) is fixed on the bottom surface of the inclined guide plate (35); a return spring (37) is fixed between the guide plate (36) and the inner wall of the guide cavity (33); a vertical plate (38) that is slidably matched with the guide groove (34) is fixed on the bottom surface of the guide plate (36); a collar (39) is fixed at the bottom end of the collar (38); a rotating tube (40) is rotatably provided inside the collar (39).

6. A lifting and hoisting system for producing polytetrafluoroethylene metal hoses according to claim 5, characterized in that: A rotating hole (41) is formed on the inner wall of the shaft hole (71); a connecting rod (42) is fixed to the end of the rotating shaft (21) and is rotatably engaged with the rotating hole (41); a sliding groove is formed on the peripheral side of the connecting rod (42); and a sliding rail (43) is fixed to the inner wall of the rotating tube (40) and is slidably engaged with the sliding groove.

7. A lifting and hoisting system for producing polytetrafluoroethylene metal hoses according to claim 6, characterized in that: A screw hole (44) is provided on the side surface of the arc-shaped outer gear ring (5) near the ball seat (6); a screw rod (45) is screwed into the screw hole (44); a ring handle (46) is fixed to the top end of the screw rod (45), and a guide ball (72) is fixed to the bottom end thereof; a first friction wheel (47) is fixed to the end of the rotating tube (40); a plurality of ear seats (48) are evenly fixed on the surface of the carrier plate (3); a connecting shaft (49) is rotatably provided through the side surface of the ear seat (48); A second friction wheel (50) is fixed to one end of the connecting shaft (49), and a bevel gear (51) is fixed to the other end thereof; a bevel gear ring (52) is rotatably provided on the surface of the carrier plate (3) and meshes with each bevel gear (51); a gear ring (53) is fixed to the inner wall of the bevel gear ring (52); a servo motor (54) is mounted on the surface of the carrier plate (3); and a driving gear (55) is fixed to the output end of the servo motor (54) and meshes with the gear ring (53).

8. A lifting and hoisting system for producing polytetrafluoroethylene metal hoses according to claim 7, characterized in that: It also includes a spraying frame (56) adapted to the sling (1); the spraying frame (56) includes a storage box (57); electric push rods (58) are symmetrically fixed to the side of the storage box (57); an L-shaped plate (59) is fixed to the telescopic end of the electric push rod (58); a cover plate (60) is fixed to the end of the L-shaped plate (59); a rotating opening (61) adapted to the arc sleeve (4) is opened on the side of the cover plate (60).

9. A lifting and hoisting system for producing polytetrafluoroethylene metal hoses according to claim 8, characterized in that: A driving motor (62) is fixed to the side of the storage box (57); a reciprocating screw rod (63) is fixed to the output end of the driving motor (62); a guide rod (64) is fixed to the side of the storage box (57); a sliding sleeve (65) adapted to the reciprocating screw rod (63) is slidably provided on the guide rod (64); a support rod (66) is fixed to the top of the sliding sleeve (65); a transverse tube (67) is fixed to the top of the support rod (66); a spraying tube (68) is provided inside the transverse tube (67); a spray head (69) is fixed to the end of the spraying tube (68); a fastening bolt (70) is threaded through the side surface of the transverse tube (67); a rubber pressure plate is fixed to the bottom end of the fastening bolt (70).

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