Negative pressure suction crane

Abstract

The invention discloses a negative pressure suction crane, and relates to the technical field of suction cranes. The device comprises a supporting assembly, an electric lifting column, a bottom plate fixed to the bottom of the electric lifting column, a mounting plate fixed to the upper end face of the electric lifting column, a linkage assembly, a sealing assembly, an air suction hood located under a linkage strip, an air suction cylinder fixed to the upper end face of the air suction hood and a clamping and positioning assembly. Comprising two clamping strips located on the lower surface of the strip-shaped plate, two extrusion rods located between the clamping strips and the surface side of the air suction cover, an air exhaust assembly and a rotary adjusting assembly. The two ends of the bag-shaped material are lifted through contact between the bag-shaped material and the air suction cover, falling of the two ends of the bag-shaped material is avoided, an adsorption plate achieves synchronization of the discharging process through air suction and deflation work, meanwhile, a rotating motor drives a linkage wheel to rotate through a belt wheel and synchronously drives a linkage strip to rotate and move, and therefore the discharging process of the bag-shaped material is completed. Therefore, the materials can be taken and placed in all directions.

Description

Technical Field

[0001] The present invention belongs to the technical field related to suction lifting machines, and in particular relates to a negative pressure suction lifting machine. Background Art

[0002] At present, enterprises pay more and more attention to reducing the labor intensity of workers, especially the feeding of white sugar and salt under feeding and screening conditions. Since the bulk density of white sugar is 0.8-1 g / cm3 and the bulk density of salt is 2 g / cm3, it is generally difficult for operators to carry it to the feeding platform. Moreover, most of the workers in food factories and pharmaceutical workshops are female workers. Female workers are physically unable to carry the above 50kg weight per bag, and two people are needed to carry it together. Therefore, in order to reduce the labor intensity of operators, the packaging bags for white sugar generally have inner bags inside, and the flour bags will be coated on one side for adsorption. Therefore, it is necessary to use corresponding suction and lifting devices to carry and process the bagged white sugar. According to the existing public document CN117208729B, the materials are adsorbed and transported by suction and lifting machines, which is used to target the workers' operating intensity and save labor.

[0003] Therefore, most of the current suction lifting machines use vacuum to absorb materials. However, the suction cups used in the suction lifting machines are generally not the same size as the packaging bags. After the suction cups are used to absorb the bagged materials, the two ends of the bagged materials will sag. After transportation, the shaking of the device will increase the sagging trend of the packaging bags. The device does not have the function of lifting the two ends of the bagged materials in the preparation process of the suction cups sucking the packaging bags. Therefore, during the transportation of the bagged materials, gaps are likely to appear between the surface of the bagged materials and the suction cups, and the suction cups cannot continue to absorb the bagged materials, causing the bagged materials to fall directly, resulting in In case of work errors, when the compression lifting component lifts the two falling ends of the material, the vacuuming and the deflation work inside the lifting structure cannot be carried out synchronously, so it is necessary to control the vacuuming work to stop, and then control the compression lifting component to reset. Therefore, multiple operations are required during each unloading process, which affects the unloading efficiency. Since there are most electrical structures in the device, the structures used therein will be restricted by various cables and air pipes, making it impossible for the structures to rotate excessively, and there will be rotation obstacles, which will make the rotation range of the suction lifter unable to achieve full-range rotation. As a result, there will be blind spots for material picking and placing, and full-range picking and placing work cannot be achieved. To this end, we provide a negative pressure suction lifter to solve the above problems. Summary of the invention

[0004] The purpose of the present invention is to provide a negative pressure suction lifting machine, which can drive the linkage work of the extrusion rod, the piston block and the clamping strip through the contact between the bagged material and the suction hood, so as to lift the two ends of the bagged material and avoid the two ends of the bagged material from falling, thereby ensuring the stable adsorption of the bagged material by the suction hood, and the adsorption plate can realize the synchronization of the unloading process through the work of suction and deflation, thereby improving the unloading efficiency. At the same time, the rotating motor drives the linkage wheel to rotate through the pulley, and synchronously drives the linkage strip to rotate, so that the linkage strip controls the rotation of the suction hood, thereby achieving all-round taking and placing of materials.

[0005] In order to solve the above technical problems, the present invention is achieved through the following technical solutions: The present invention provides a negative pressure suction lifting machine, comprising a supporting assembly, including an electric lifting column, a bottom plate fixed at the bottom position of the electric lifting column and a mounting plate fixed to the upper end surface of the electric lifting column, a linkage assembly, including a linkage bar located above the electric lifting column and arranged at a right angle to the electric lifting column and a reinforcing bar located above the linkage bar, a sealing assembly, including an air suction hood located directly below the linkage bar and an air extraction cylinder fixed to the upper end surface of the air suction hood, two strip plates symmetrically arranged along the sides of the air suction hood are fixed to the surface side wall of the air suction hood, an inverted U-cylinder is fixed to the upper end surface of the strip plate, a thin cylinder fixedly connected to the air suction hood is fixed to the lower end surface of the air extraction cylinder, an adsorption plate is slidably arranged inside the thin cylinder, a gear for deflating the inside of the inverted U-cylinder is arranged inside the thin cylinder located below the adsorption plate, and a clamping and positioning assembly, including two strip plates respectively located on the strip plates A clamping bar at the lower surface position and two extrusion rods respectively located between the clamping bar and the surface side of the suction hood, the upper end surface of the clamping bar is provided with a piston block sliding in the inner position of the inverted U-tube, the upper end surface of the extrusion rod is fixed with a compression plate sliding in the inner position of the inverted U-tube, a vacuum assembly, including a vacuum pump fixed on the upper end surface of the bottom plate, a vacuum end of the vacuum pump is fixed with a vacuum curved pipe connected to the inside of the suction hood, a rotation adjustment assembly, including a rotating column located directly above the electric lifting column and a square sleeve arranged on the surface side of the rotating column through a bolt sleeve, a rotating U sleeve is fixed on the surface side of the square sleeve, a rotating motor is arranged directly below the rotating U sleeve, a pulley is fixed on the rotating shaft end of the rotating motor, a linkage wheel connected to the pulley through a belt drive is fixed on the lower end surface of the rotating column, and a connecting rod rotating synchronously with the pulley is fixed on the end of the linkage bar.

[0006] The present invention is further configured such that a pulley is fixed to the rotating shaft end of the rotating motor, a linkage wheel connected to the pulley through a belt drive is fixed to the lower end face of the rotating column, a connecting rod rotating synchronously with the pulley is fixed to the end of the linkage bar, a T-shaped hole penetrating through the upper end face of the mounting plate is provided on the upper end face of the electric lifting column, and a T-shaped rod rotating in cooperation with the T-shaped hole is welded to the lower end face of the linkage wheel.

[0007] The present invention is further configured such that a plurality of ball openings arranged in a ring shape with the T-shaped rod as the center are provided on the lower end surface of the linkage wheel, and a ball block whose surface wall is connected to the upper end surface of the mounting plate is provided inside each ball opening.

[0008] The present invention is further configured such that a suction end of the vacuum pump is fixed with a suction curved pipe connected to the interior of the suction hood, the lower end surface of the linkage bar is connected to a limiting plate by bolts, a plurality of hanging rings evenly distributed in a linear manner are fixed to the lower surface of the limiting plate, a sealing hole is provided on the upper end surface of the vacuum cylinder, the other end of the suction curved pipe passes through the sealing hole and is fixed to the suction hood, a sealing arrangement is provided between the sealing hole and the suction curved pipe, and a through hole connected to the interior of the thin cylinder is provided on the top surface of the interior of the suction hood.

[0009] The present invention is further configured such that a bleed valve tube is fixedly connected to the middle position of the curved portion of each inverted U-tube, a ball valve body is rotatably arranged inside the bleed valve tube, an operating rod rotatably connected to the bleed valve tube is fixed to the end of the ball valve body, sealing rods passing through the side wall of the thin tube are fixed to the two end surfaces of the gear, the sealing rod is rotatably connected to the surface of the thin tube through a sealing bearing, and a linkage rod is bolted to the sealing rod and the operating rod.

[0010] The present invention is further configured such that a positioning ring is fixed to the inner wall of the vacuum cylinder, a spring fixedly connected to the bottom of the positioning ring is fixed to the upper end surface of the adsorption plate, a calibration rod inserted into the inner side of the positioning ring is fixed to the upper end surface of the adsorption plate, and a rack meshingly connected to a gear is fixed to the lower end surface of the adsorption plate.

[0011] The present invention is further configured such that a movable hole connected to the two ends of the inverted U-tube is opened at the bottom of the strip plate, and the aperture of the movable hole is smaller than the inner diameter of the inverted U-tube, a moving rod passing through the movable hole is fixed to the lower end surface of the piston block, a ring block located below the strip plate is fixed to the lower end of the moving rod, a spring 2 sleeved on the moving rod is fixed to the lower end surface of the piston block, and the lower end surface of the spring 2 abuts against the inner end surface of the inverted U-tube, and an abutment plate is fixed to the lower end surface of the extrusion rod.

[0012] The present invention is further configured such that a T-shaped opening is provided on the upper end surface of the clamping strip, a T-shaped block is slidably provided inside the T-shaped opening, an I-shaped block rotatably connected to the ring block is fixed on the upper end surface of the T-shaped block, a positioning tooth plate is fixed on the lower end surface of the clamping strip away from the air suction hood, an axial hole is penetrated through the opposite ends of the two clamping strips, a U-shaped block is fixed on the lower end surface of the strip plate located between the two ends of the inverted U-tube, and an axial rod rotating in the position inside the axial hole is fixed between the two side walls inside the U-shaped block.

[0013] The present invention is further configured such that the connecting rod is rotatably connected to the rotating U sleeve, a rotating hole is penetrated through the other end of the reinforcement bar, a connecting block is provided at one end of the reinforcement bar and is bolted to the upper end surface of the linkage bar, and the U-shaped connecting block is rotatably connected to the reinforcement bar through an internal rod passing through the rotating hole.

[0014] The present invention is further configured such that a support rod is fixed on the upper end surface of the rotating column, a sleeve is provided at the other end of the reinforcing strip and is sleeved on the support rod, a ring opening is opened on the surface side of the support rod inside the sleeve, a ring plate is fixed inside the sleeve and is located at the ring opening position, a movable block rotatably connected to one end of the reinforcing strip is fixed on the surface side of the sleeve, and a mounting rod is fixed between the connecting rod and the pulley.

[0015] The present invention has the following beneficial effects: 1. When the suction hood moves toward the bagged material, the extrusion rod will first come into contact with the bagged material, and then the extrusion rod will be pushed by the bagged material. The extrusion rod controls the compression plate to move inside the inverted U-tube to compress the internal gas and control the piston block to slide downward inside the inverted U-tube, pushing the clamping bar to rotate downward, and then the clamping bar will control the positioning tooth plate to clamp the bagged material, so as to lift the two ends of the bagged material and avoid the two ends of the bagged material from falling, thereby ensuring the stable adsorption of the bagged material by the suction hood.

[0016] 2. Through the work of suction and deflation, the adsorption plate is controlled to move up and down. The adsorption plate will drive the gear to rotate, so the gear drives the ball valve body to rotate inside the air release valve tube. When the adsorption plate is adsorbed to the uppermost position and cannot move further, the ball valve body will close the air release valve tube. When the internal air extraction of the vacuum cylinder is stopped, the adsorption plate will slide down, and the ball valve body will reset and rotate. The ball valve body will open the air release valve tube to deflate the inside of the inverted U cylinder, so as to realize the synchronous operation of the clamping function and the suction function and improve the efficiency of unloading.

[0017] 3. The rotating motor will work and control the rotation of the pulley, so that the pulley directly drives the linkage wheel to rotate, and the linkage wheel directly drives the rotating column to rotate, and then the rotating column drives the linkage bar to rotate, so as to rotate and adjust the suction hood. At the same time, the rotating motor will directly drive the linkage bar to rotate, so that the linkage bar and the rotating column rotate synchronously, realizing the control of the linkage bar's rotation from 0° to 540°, and realizing all-round picking and placing of materials.

[0018] Of course, any product implementing the present invention does not necessarily need to achieve all of the above advantages at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0020] Figure 1It is a schematic diagram of the overall structure of the present invention.

[0021] Figure 2 It is a structural combination diagram of the suction hood, the clamping strip, the vacuum cylinder and the vacuum pump in the present invention.

[0022] Figure 3 It is a structural diagram of the vacuum cylinder, the inverted U cylinder and the clamping strip in the present invention.

[0023] Figure 4 It is a structural combination diagram of the adsorption plate, gear and ball valve body in the present invention.

[0024] Figure 5 It is a cross-sectional structural diagram of the vacuum cylinder, the suction hood and the inverted U cylinder in the present invention.

[0025] Figure 6 It is a structural diagram of the clamping bar, T-shaped block, piston block and U-shaped block in the present invention.

[0026] Figure 7 It is a structural diagram of the rotating column and the rotating motor in the present invention.

[0027] Figure 8 This is a structural combination diagram of the rotating column and the ball block in the present invention.

[0028] Fig. 9 It is a structural diagram of the electric lifting column in the present invention.

[0029] Fig.10 It is a structural diagram of the linkage strip and the reinforcement strip in the present invention.

[0030] Fig.11 This is a structural combination diagram of the reinforcing strip, connecting block and sleeve in the present invention.

[0031] In the accompanying drawings, the components represented by the reference numerals are listed as follows: 100-support assembly, 101-electric lifting column, 101a-T-shaped hole, 102-bottom plate, 103-mounting plate, 200-linkage assembly, 201-linkage bar, 201a-connecting rod, 202-reinforcement bar, 202a-rotating hole, 203-limiting plate, 203a-hanging ring, 204-connecting block, 205-sleeve, 205a-ring plate, 205b-movable block, 300-sealing assembly, 301-suction Air cover, 302-through hole, 303-vacuum cylinder, 303a-sealing hole, 303b-positioning ring, 303c-thin cylinder, 303d-sealed bearing, 304-inverted U cylinder, 304a-deflation valve tube, 305-strip plate, 305a-movable hole, 306-ball valve body, 306a-operating rod, 307-gear, 307a-sealing rod, 308-adsorption plate, 308a-rack, 308b-spring, 309-gear, 310-gear, 311-gear, 312-gear, 313-gear, 314-gear, 315-gear, 316-gear, 317-gear, 318-gear, 319-gear, 320-gear, 321-gear, 322-gear, 323-gear, 324-gear, 325-gear, 326-gear, 327-gear, 328-gear, 329-gear, 330-gear, 331-gear, 332-gear, 333-gear, 334-gear, 335-gear, 336-gear, 337-gear, 338-gear, 339-gear, 340-gear, 341-gear, 342-gear, 343-gear, 344-gear, 345-gear, 346-gear, 347-gear, 348-gear, 349-gear, 350-gear, 351-gear, 35 08c-calibration rod, 309-linkage rod, 400-clamping and positioning assembly, 401-clamping bar, 401a-positioning tooth plate, 401b-T-shaped mouth, 401c-axis hole, 402-extrusion rod, 402a-abutment plate, 402b-compression plate, 403-T-shaped block, 403a-I-shaped block, 404-piston block, 404a-moving rod, 404b-spring 2, 404c-ring block, 405-U-shaped block, 405a-shaft rod, 500-vacuum assembly, 501-vacuum pump, 502-vacuum curved pipe, 600-rotation adjustment assembly, 601-rotation column, 601a-support rod, 601b-ring mouth, 601c-T-shaped rod, 601d-linkage wheel, 601d1-ball mouth, 602-square sleeve, 602a-rotation U sleeve, 603-rotation motor, 603a-pulley, 603b-mounting rod, 604-ball block. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention. Example 1

[0033] See also Figure 1 , Figure 2 , Figure 3 and Figure 6, which is the first embodiment of the present invention, provides a negative pressure suction lifter, through the contact between the bagged material and the suction hood 301, the extrusion rod 402, the piston block 404 and the clamping bar 401 will work in conjunction, so as to lift the two ends of the bagged material to avoid the two ends of the bagged material from falling, so as to ensure that the suction hood 301 can adsorb the bagged material stably, and the adsorption plate 308 can realize the synchronization of the unloading process through the work of suction and degassing, thereby improving the unloading efficiency. At the same time, the rotating motor 603 drives the linkage wheel 601d to rotate through the pulley 603a, and synchronously drives the linkage bar 201 to rotate, so that the linkage bar 201 controls the suction hood 301 to rotate 360°, so as to achieve all-round material taking and placing.

[0034] Specifically, the support assembly 100 includes an electric lifting column 101, a bottom plate 102 fixed at the bottom of the electric lifting column 101, and a mounting plate 103 fixed to the upper end surface of the electric lifting column 101; the linkage assembly 200 includes a linkage bar 201 located above the electric lifting column 101 and arranged at a right angle to the electric lifting column 101 and a reinforcement bar 202 located above the linkage bar 201; the sealing assembly 300 includes an air hood 301 located directly below the linkage bar 201 and a reinforcement bar 202 fixed to the air hood 301. 01, a vacuum cylinder 303 on the upper end surface, a clamping and positioning assembly 400, including two clamping strips 401 respectively located on the lower surface of the strip plate 305 and two extrusion rods 402 respectively located between the clamping strips 401 and the surface of the suction cover 301, a vacuum assembly 500, including a vacuum pump 501 fixed to the upper end surface of the bottom plate 102, a rotation adjustment assembly 600, including a rotating column 601 located directly above the electric lifting column 101 and a square sleeve 602 arranged on the surface of the rotating column 601 through bolts; By setting up and using the above-mentioned structure, the electric lifting column 101 is used to control the vacuum cylinder 303 to rise and fall, so that the suction hood 301 is in contact with the bagged material. At this time, the vacuum pump 501 is controlled to work, and the air inside the suction hood 301 is extracted to suck up the whole bag of material. At the same time, when the suction hood 301 moves toward the bagged material, the squeezing rod 402 will first be in contact with the bagged material, and then the squeezing rod 402 will compress the inside of the inverted U-tube 304, so that the clamping bar 401 rotates downward, thereby clamping the bagged material.

[0035] according to Figure 3 , Figure 4 , Figure 6 , Figure 7 and Figure 8Two strip plates 305 symmetrically arranged along the sides of the suction hood 301 are fixed to the surface side wall of the suction hood 301, an inverted U-tube 304 is fixed to the upper end surface of the strip plate 305, a piston block 404 sliding in the inner position of the inverted U-tube 304 is arranged on the upper end surface of the clamping strip 401, a compression plate 402b sliding in the inner position of the inverted U-tube 304 is fixed to the upper end surface of the extrusion rod 402, a suction curved pipe 502 connected to the inside of the suction hood 301 is fixed to the suction end of the suction pump 501, and a rotating U sleeve 602a is fixed to the surface side of the square sleeve 602, which is located directly below the rotating U sleeve 602a A rotating motor 603 is provided, a pulley 603a is fixed to the rotating shaft end of the rotating motor 603, a linkage wheel 601d connected to the pulley 603a through a belt transmission is fixed to the lower end surface of the rotating column 601, a connecting rod 201a which rotates synchronously with the pulley 603a is fixed to the end of the linkage bar 201, a thin cylinder 303c which is fixedly connected to the suction hood 301 is fixed to the lower end surface of the vacuum cylinder 303, an adsorption plate 308 is slidably provided inside the thin cylinder 303c, and a gear 307 for deflating the inside of the inverted U cylinder 304 is provided inside the thin cylinder 303c located below the adsorption plate 308; When the above-mentioned structure is used, when the extrusion rod 402 is pushed, the extrusion rod 402 controls the compression plate 402b to move inside the inverted U-tube 304, thereby compressing the internal gas, and controls the piston block 404 to slide downward inside the inverted U-tube 304, pushing the clamping bar 401 to rotate downward, and then the clamping bar 401 will control the positioning tooth plate 401a to clamp the bag-like material, so as to lift the two ends of the bag-like material and prevent the two ends of the bag-like material from falling, thereby ensuring that the suction hood 301 adsorbs the bag-like material stably, and at the same time controls the rotating motor 603 to work. , the rotating motor 603 controls the pulley 603a to rotate, thereby the pulley 603a directly drives the linkage wheel 601d to rotate, and the linkage wheel 601d directly drives the rotating column 601 to rotate, and then the rotating column 601 drives the linkage bar 201 to rotate, so as to adjust the rotation of the suction hood 301, and at the same time, the rotating motor 603 also directly drives the linkage bar 201 to rotate, so that the linkage bar 201 and the rotating column 601 rotate synchronously, so that the linkage bar 201 can be controlled to rotate from 0° to 540°, and the material can be taken and placed in all directions; By vacuuming the interior of the vacuum cylinder 303, the adsorption plate 308 will be attracted upward, and the adsorption plate 308 will drive the gear 307 to rotate, so that the gear 307 drives the ball valve body 306 to rotate inside the air release valve tube 304a. When the adsorption plate 308 is adsorbed to the uppermost position and cannot move further, the ball valve body 306 will close the air release valve tube 304a. When the vacuuming of the interior of the vacuum cylinder 303 is stopped, the adsorption plate 308 will slide down, and the ball valve body 306 will reset and rotate. The ball valve body 306 will open the air release valve tube to release the interior of the inverted U cylinder 304, thereby realizing the synchronous operation of the clamping function and the suction function, and improving the unloading efficiency.

[0036] Further, according to Figure 5 and Fig.10 It can be seen that the lower end surface of the linkage bar 201 is connected to the limit plate 203 by bolts, and a plurality of hanging rings 203a arranged linearly and evenly are fixed to the lower surface of the limit plate 203. A sealing hole 303a is provided on the upper end surface of the vacuum cylinder 303, and the other end of the vacuum curved pipe 502 passes through the sealing hole 303a and is fixed on the suction hood 301. The sealing hole 303a and the vacuum curved pipe 502 are sealed, and a through hole 302 connected to the inside of the thin tube is provided on the top surface of the interior of the suction hood 301. The vacuum curved pipe 502 is lifted up by the hanging ring 203a to avoid interference of the vacuum curved pipe 502 with the vacuum cylinder 303 and the suction hood 301.

[0037] It should be noted that when the piston block 404 and the compression plate 402b slide inside the inverted U-cylinder 304, the piston block 404 and the compression plate 402b will compress the gas inside the inverted U-cylinder 304. The electric lifting column 101 and the rotating motor 603 used are both connected to an external power supply. At the same time, the rotation amplitude of the rotating motor 603 is controlled by an external control center to avoid excessive rotation circles, and the four-way valve 302 used is electrically controlled. Example 2

[0038] See also Figure 8 and Fig. 9 On the basis of Example 1, in this example, the T-shaped rod 601 c is located inside the T-shaped hole 101 a to ensure stable movement between the rotating column 601 and the electric lifting column 101 .

[0039] Specifically, the upper end surface of the electric lifting column 101 is provided with a T-shaped hole 101a that passes through the upper end surface of the mounting plate 103, and the lower end surface of the linkage wheel 601d is welded with a T-shaped rod 601c that rotates in coordination with the T-shaped hole 101a. The lower end surface of the linkage wheel 601d is provided with a plurality of ball holes 601d1 that are arranged in a ring shape with the T-shaped rod 601c as the center, and a ball block 604 whose surface wall is connected to the upper end surface of the mounting plate 103 is arranged inside each ball hole 601d1.

[0040] By setting and using the above structure, when the rotating column 601 is driven, the rotating column 601 will drive the T-shaped rod 601c to rotate inside the T-shaped hole 101a, so that the rotating column 601 and the electric lifting column 101 can be stably connected, and when the rotating column 601 rotates, the rotating column 601 will drive the ball block 604 to rotate inside the ball hole 601d1, avoiding direct contact between the rotating column 601 and the electric lifting column 101, thereby reducing the friction damage caused. Example 3

[0041] See also Figure 5 and Figure 6 On the basis of Example 1, this embodiment can control the clamping bar 401 to reset itself by automatically sliding the abutment rod downward and pushing the piston block 404 by the spring 2 404b.

[0042] Specifically, a movable hole 305a connected to the two ends of the inverted U-tube 304 is formed at the bottom of the strip plate 305, and the diameter of the movable hole 305a is smaller than the inner diameter of the inverted U-tube 304. A moving rod 404a passing through the movable hole 305a is fixed to the lower end surface of the piston block 404, and a ring block 404c located below the strip plate 305 is fixed to the lower end of the moving rod 404a. A spring 404b sleeved on the moving rod 404a is fixed to the lower end surface of the piston block 404, and the lower end surface of the spring 404b abuts against the inner end surface of the inverted U-tube 304. A contact plate 402a is fixed to the lower end surface of the extrusion rod 402. The upper end surface of the clamping strip 401 is provided with a T-shaped opening 401b, and a T-shaped block 403 is slidably arranged inside the T-shaped opening 401b. An I-shaped block 403a rotatably connected to a ring block 404c is fixed to the upper end surface of the T-shaped block 403. A positioning tooth plate 401a is fixed to the lower end surface of the clamping strip 401 away from the suction hood 301. An axial hole 401c is penetrated through the opposite ends of the two clamping strips 401. A U-shaped block 405 is fixed to the lower end surface of the strip plate 305 located between the two ports of the inverted U-tube 304. A shaft 405a rotating inside the shaft hole 401c is fixed between the two side walls inside the U-shaped block 405. By using the above structure, when the piston block 404 is pushed down, the piston block 404 will compress the spring 404b and push the moving rod 404a to move. The ring block 404c at the lower end of the moving rod 404a rotates on the I-shaped block 403a and pushes the T-shaped block 403 to slide along the T-shaped opening 401b, thereby controlling the clamping bar 401 to move downward. At the same time, the end of the clamping bar 401 will rotate at the position of the U-shaped block 405, so that one end of the clamping bar 401 can move forward with the U-shaped block 405 as the axis. The piston block 404 is not installed because the spring 404b directly pushes the piston block 404 to move upward inside the inverted U-tube 304, thereby controlling the moving rod 404a to drive the clamping bar 401 to reset. Example 4

[0043] See also Fig.10 and Fig.11 On the basis of Example 1, this embodiment improves the suction and suspension strength of the linkage bar 201 by pulling the linkage bar 201 through the reinforcement bar 202.

[0044] Specifically, the connecting rod 201a is rotatably connected with the rotating U sleeve 602a, and the other end of the reinforcing strip 202 is penetrated with a rotating hole 202a, and one end of the reinforcing strip 202 is provided with a connecting block 204 bolted to the upper end surface of the linkage strip 201, and the U-shaped connecting block 204 is rotatably connected with the reinforcing strip 202 through the internal rod member through the rotating hole 202a, and the upper end surface of the rotating column 601 is fixed with a support rod 601a, and the other end of the reinforcing strip 202 is provided with a sleeve 205 sleeved on the support rod 601a, and the support rod 601a inside the sleeve 205 is provided with a ring opening 601b on the surface side, and a ring plate 205a at the position of the ring opening 601b is fixed inside the sleeve 205, and a movable block 205b rotatably connected to one end of the reinforcing strip 202 is fixed on the surface side of the sleeve 205, and a mounting rod 603b is fixed between the connecting rod 201a and the pulley 603a; By setting and using the above-mentioned structure, the linkage bar 201 is pulled by the rotating U sleeves 602a and the connecting blocks 204 arranged at both ends of the reinforcement bar 202, so as to improve the stability of the linkage bar 201. At the same time, when the linkage bar 201 rotates, it will drive the reinforcement bar 202 to rotate, and control the sleeve 205 to rotate on the support rod 601a. ​​The ring plate 205a is located inside the ring mouth 601b, and the connection part between the reinforcement bar 202 and the support rod 601a is positioned to prevent the end of the reinforcement bar 202 from moving at will. Example 5

[0045] See also Figure 4 and Figure 5 On the basis of Example 1, this example controls the up and down movement of the adsorption plate 308 by means of the functions of air intake and air discharge, thereby improving the utilization of power resources.

[0046] Specifically, the middle position of the curved portion of each inverted U-tube 304 is fixedly connected to a venting valve tube 304a, a ball valve body 306 is rotatably arranged inside the venting valve tube 304a, an operating rod 306a rotatably connected to the venting valve tube 304a is fixed at the end of the ball valve body 306, and a sealing rod 307a passing through the side wall of the thin tube 303c is fixed on both end surfaces of the gear 307, and a sealing bearing 307a is arranged between the sealing rod 307a and the surface side of the thin tube 303c. 03d is rotatably connected, a linkage rod 309 is bolted between the sealing rod 307a and the operating rod 306a, a positioning ring 303b is fixed to the inner wall of the vacuum cylinder 303, a spring 308b fixedly connected to the bottom of the positioning ring 303b is fixed to the upper end surface of the adsorption plate 308, a calibration rod 308c inserted in the inner position of the positioning ring 303b is fixed to the upper end surface of the adsorption plate 308, and a rack 308a meshing with a gear is fixed to the lower end surface of the adsorption plate 308; By setting and using the above-mentioned structure, after the adsorption plate 308 moves to the inside of the vacuum cylinder 303 at the position of the capillary 303c, the adsorption plate 308 will compress the spring 308b, and will control the adsorption plate 308 to drive the calibration rod 308c to slide inside the positioning ring 303b, and the positioning ring 303b will limit the calibration rod 308c, so as to limit the adsorption plate 308. Therefore, when the adsorption plate 308 falls, the adsorption plate 308 can be stably moved into the capillary 303c, and at the same time, the adsorption plate 308 will drive the gear to rotate through the rack 308a, so that the gear 307 will drive the linkage rod 309 and the operating rod 306a to rotate through the sealing rod 307a.

[0047] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0048] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well.

Claims

1. A negative pressure suction lifting machine, characterized in that: include, A support assembly (100) comprising an electric lifting column (101), a bottom plate (102) fixed to the bottom of the electric lifting column (101), and a mounting plate (103) fixed to the upper end surface of the electric lifting column (101); A linkage assembly (200) comprising a linkage bar (201) located above the electric lifting column (101) and arranged at a right angle to the electric lifting column (101), and a reinforcement bar (202) located above the linkage bar (201); The sealing assembly (300) comprises an air suction hood (301) located directly below the linkage strip (201) and an air extraction cylinder (303) fixed to the upper end surface of the air suction hood (301); two strip plates (305) symmetrically arranged along the sides of the air suction hood (301) are fixed to the surface side wall of the air suction hood (301); an inverted U-tube (304) is fixed to the upper end surface of the strip plates (305); a thin tube (303c) fixedly connected to the air suction hood (301) is fixed to the lower end surface of the air extraction cylinder (303); an adsorption plate (308) is slidably arranged inside the thin tube (303c); and a gear (307) for degassing the inside of the inverted U-tube (304) is arranged inside the thin tube (303c) located below the adsorption plate (308); A clamping and positioning assembly (400) comprises two clamping bars (401) respectively located at the lower surface of the strip plate (305) and two extrusion rods (402) respectively located between the clamping bars (401) and the surface of the suction hood (301), wherein the upper end surface of the clamping bar (401) is provided with a piston block (404) which slides in the internal position of the inverted U-tube (304), and the upper end surface of the extrusion rod (402) is fixed with a compression plate (402b) which slides in the internal position of the inverted U-tube (304); The air extraction component (500) comprises an air extraction pump (501) fixed to the upper end surface of the bottom plate (102); and The rotation adjustment assembly (600) comprises a rotation column (601) located directly above the electric lifting column (101) and a square sleeve (602) arranged on the surface side of the rotation column (601) via a bolt sleeve, a rotation U sleeve (602a) being fixed on the surface side of the square sleeve (602), and a rotation motor (603) being arranged directly below the rotation U sleeve (602a).

2. A negative pressure suction lifting machine according to claim 1, characterized in that: A pulley (603a) is fixed to the end of the rotating shaft of the rotating motor (603); a linkage wheel (601d) connected to the pulley (603a) via a belt drive is fixed to the lower end surface of the rotating column (601); and a connecting rod (201a) that rotates synchronously with the pulley (603a) is fixed to the end of the linkage bar (201); The upper end surface of the electric lifting column (101) is provided with a T-shaped hole (101a) penetrating the upper end surface of the mounting plate (103); the lower end surface of the linkage wheel (601d) is welded with a T-shaped rod (601c) that rotates in coordination with the T-shaped hole (101a).

3. A negative pressure suction lifting machine according to claim 2, characterized in that: The lower end surface of the linkage wheel (601d) is provided with a plurality of ball openings (601d1) arranged in a ring shape with the T-shaped rod (601c) as the center, and a ball block (604) whose surface wall is connected to the upper end surface of the mounting plate (103) is arranged inside each ball opening (601d1).

4. A negative pressure suction lifting machine according to claim 1, characterized in that: A suction end of the suction pump (501) is fixed with a suction curved pipe (502) connected to the interior of the suction hood (301); The lower end surface of the linkage bar (201) is connected to a limit plate (203) via bolts, a plurality of linearly evenly distributed hanging rings (203a) are fixed to the lower surface of the limit plate (203), and a sealing hole (303a) is provided on the upper end surface of the air pump (303); The other end of the exhaust curved pipe (502) passes through the sealing hole (303a) and is fixed on the air suction cover (301). The sealing hole (303a) and the exhaust curved pipe (502) are sealed. The top surface of the interior of the air suction cover (301) is provided with a through hole (302) connected to the interior of the thin tube.

5. A negative pressure suction lifting machine according to claim 1, characterized in that: A deflation valve tube (304a) is fixedly connected to the middle of the curved portion of each inverted U-tube (304), a ball valve body (306) is rotatably arranged inside the deflation valve tube (304a), an operating rod (306a) rotatably connected to the deflation valve tube (304a) is fixed to the end of the ball valve body (306), sealing rods (307a) passing through the side wall of the thin tube (303c) are fixed to both end surfaces of the gear (307), and the sealing rod (307a) is rotatably connected to the surface of the thin tube (303c) via a sealing bearing (303d) arranged therebetween; A linkage rod (309) is bolted between the sealing rod (307a) and the operating rod (306a).

6. A negative pressure suction lifting machine according to claim 1, characterized in that: A positioning ring (303b) is fixed to the inner wall of the vacuum cylinder (303), a spring (308b) fixedly connected to the bottom of the positioning ring (303b) is fixed to the upper end surface of the adsorption plate (308), and a calibration rod (308c) inserted into the inner side of the positioning ring (303b) is fixed to the upper end surface of the adsorption plate (308); A rack (308a) meshingly connected to the gear (307) is fixed on the lower end surface of the adsorption plate (308).

7. A negative pressure suction lifting machine according to claim 1, characterized in that: The bottom of the strip plate (305) is provided with a movable hole (305a) connected to the two ends of the inverted U-tube (304), and the diameter of the movable hole (305a) is smaller than the inner diameter of the inverted U-tube (304); the lower end surface of the piston block (404) is fixed with a moving rod (404a) passing through the movable hole (305a); the lower end of the moving rod (404a) is fixed with a ring block (404c) located below the strip plate (305); The lower end surface of the piston block (404) is fixed with a spring 2 (404b) sleeved on the moving rod (404a), and the lower end surface of the spring 2 (404b) abuts against the inner end surface of the inverted U-tube (304), and the lower end surface of the extrusion rod (402) is fixed with an abutment plate (402a).

8. A negative pressure suction lifting machine according to claim 7, characterized in that: The upper end surface of the clamping bar (401) is provided with a T-shaped opening (401b), a T-shaped block (403) is slidably arranged inside the T-shaped opening (401b), an I-shaped block (403a) rotatably connected to a ring block (404c) is fixed to the upper end surface of the T-shaped block (403), and a positioning tooth plate (401a) is fixed to a portion of the lower end surface of the clamping bar (401) away from the suction hood (301); An axial hole (401c) is formed through the opposite ends of the two clamping strips (401), a U-shaped block (405) is fixed to the lower end surface of the strip plate (305) located between the two ends of the inverted U-tube (304), and an axial rod (405a) is fixed between the two side walls inside the U-shaped block (405) and rotates inside the axial hole (401c).

9. A negative pressure suction lifting machine according to claim 2, characterized in that: The connecting rod (201a) is rotatably connected to the rotating U sleeve (602a); the other end of the reinforcing strip (202) is penetrated by a rotating hole (202a); one end of the reinforcing strip (202) is provided with a connecting block (204) bolted to the upper end surface of the linkage strip (201); the U-shaped connecting block (204) is rotatably connected to the reinforcing strip (202) via an internal rod member passing through the rotating hole (202a).

10. A negative pressure suction lifting machine according to claim 9, characterized in that: A support rod (601a) is fixed to the upper end surface of the rotating column (601); a sleeve (205) sleeved on the support rod (601a) is provided at the other end of the reinforcing strip (202); a ring opening (601b) is provided on the surface side of the support rod (601a) inside the sleeve (205); and a ring plate (205a) located at the position of the ring opening (601b) is fixed inside the sleeve (205); A movable block (205b) rotatably connected to one end of the reinforcing strip (202) is fixed on the surface side of the sleeve (205), and a mounting rod (603b) is fixed between the connecting rod (201a) and the pulley (603a).

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