Lining pipe assembling equipment of electromagnetic flowmeter

Abstract

The utility model relates to the technical field of assembly of electromagnetic flow meters, in particular to lining pipe assembly equipment of an electromagnetic flow meter, which comprises a rack, a cutting machine arranged on the rack, a lining conveyor arranged on one side of the cutting machine and a pipeline clamp arranged between the lining conveyor and the inner cutting machine. A pipe pulling device and a driving device are arranged on one side, far away from the lining conveyor, of the cutting machine; the pipe pulling device comprises a supporting plate arranged above the rack, two hinge plates arranged above the supporting plate, a first hinge shaft arranged between the two hinge plates, second hinge shafts arranged on the hinge plates, two clamping plates arranged on the sides, close to the cutting machine, of the two hinge plates, and a third hinge shaft arranged between the two clamping plates. A first telescopic cylinder is arranged on one clamping plate, a hook is arranged on the first telescopic cylinder, and a hinge piece is arranged between the hook and the first hinge shaft. According to the lining pipe assembling equipment of the electromagnetic flowmeter, the lining pipe is convenient to assemble, and the pulling operation is stable.

Description

TECHNICAL FIELD

[0001] The utility model relates to the assembling technical field of electromagnetic flowmeter, concretely relates to a kind of inner lining pipe assembling equipment of electromagnetic flowmeter. BACKGROUND

[0002] Electromagnetic flowmeter is a kind of measuring instrument for determining the volume flow of conductive fluid. The working principle of this device is based on Faraday's law of electromagnetic induction, and the flow rate is determined by measuring the induced electromotive force generated by the fluid under the action of magnetic field. Through the determination of flow rate, the volume flow of fluid can be calculated. Since there are no movable parts or flow-blocking parts protruding inside the pipeline in the pipeline electromagnetic flowmeter, the fluid passing through the pipeline electromagnetic flowmeter will not cause any obstruction or interference to the fluid. Therefore, the fluid will not cause additional pressure loss. This feature enables the electromagnetic flowmeter to significantly reduce energy consumption when operating in the delivery pipeline, thereby improving the overall system efficiency. Moreover, since the pipeline electromagnetic flowmeter has no mechanical inertia, it is very sensitive in the measurement process. Therefore, the pipeline electromagnetic flowmeter not only can measure the instantaneous pulsating flow of fluid, but also can accurately measure the flow of fluid in both forward and reverse directions. This makes the pipeline electromagnetic flowmeter play an important role in water treatment, chemical industry, food processing, metallurgy and papermaking industries.

[0003] The pipeline electromagnetic flowmeter mainly consists of a measuring pipeline, an inner lining tube, an excitation coil, electrodes, a housing, and the like. The excitation coil is wound around the outside of the measuring pipeline to generate a uniform magnetic field. The electrodes are used to detect the induced electromotive force generated by the fluid flow, thereby calculating the volumetric flow rate of the fluid. The housing protects the internal components and provides a mounting interface. The inner lining tube is a protective layer installed inside the measuring pipeline, which is made of corrosion-resistant and wear-resistant electrically insulating materials. The selection of such materials is crucial because they not only effectively resist corrosive substances that may exist in the fluid, protecting the measuring pipeline and electrodes from damage, but also ensure electrical insulation performance during measurement. The presence of the inner lining tube enables the electromagnetic flowmeter to work stably in various harsh industrial environments, greatly extending the service life of the equipment. In order to ensure that the inner lining tube and the measuring pipeline fit tightly, the inner lining tube must be installed inside the measuring pipeline by interference fitting. To achieve this, a suitable pipe pulling tool is needed to firmly grip the inner lining tube, and by pulling the pipe pulling tool, the inner lining tube is pulled into the measuring pipeline in an interference fit. After the initial assembly is completed, a cutting machine is used to cut the inner lining tube to ensure that the assembly of the inner lining tube meets the desired effect. However, in actual operation, manually pulling the pipe pulling tool not only increases the labor intensity of the workers, but also makes it difficult to control the speed and force of pulling, which can cause the inner lining tube to break or deform if pulled too fast or too hard, affecting the quality of the inner lining tube. Therefore, the assembly process of the inner lining tube urgently needs a solution to fill the gap in the existing technology, thereby improving the assembly quality and efficiency of the inner lining tube of the pipeline electromagnetic flowmeter. SUMMARY

[0004] In view of the shortcomings of the prior art, the utility model provides an inner lining tube assembly equipment for an electromagnetic flowmeter, which is convenient to assemble and stable to pull, and overcomes the defects in the prior art.

[0005] The utility model discloses a technical scheme for an inner lining pipe assembling equipment of an electromagnetic flowmeter, which comprises a rack, a cutting machine arranged on the rack, an inner lining conveyor arranged on one side of the cutting machine, and a pipe clamp arranged between the inner lining conveyor and the cutting machine.

[0006] Preferably, the rack is provided with a reset device, which comprises two transmission wheels rotatably arranged on the rack, a first transmission rope tautly arranged between the two transmission wheels, a driving wheel tautly arranged on the first transmission rope, and a second motor for driving the driving wheel to rotate, wherein the second motor is mounted on the rack, and one side of the first transmission rope is mounted on the support plate.

[0007] Preferably, one side of the rack is provided with a carrying device, which comprises a first support arranged on one side of the rack, a first guide rail arranged on the top of the first support, a first sliding block arranged on the first guide rail, a moving plate arranged on the first sliding block, a second telescopic cylinder vertically arranged on the moving plate, and a clamping jaw arranged on the second telescopic cylinder, wherein the clamping jaw is located above the chain.

[0008] Preferably, a second support is arranged between the second telescopic cylinder and the clamping jaw, the second support is horizontally arranged on the second telescopic cylinder, the number of the clamping jaws is three, one of the clamping jaws is arranged at the middle of the bottom surface of the second support, the other two clamping jaws are arranged at the two sides of the second support, two third telescopic cylinders are arranged on the second support, the two third telescopic cylinders are arranged on the second support, one end of the two third telescopic cylinders is connected with the other two clamping jaws respectively, a second guide rail is arranged on the second support, a sleeve groove is arranged at the top of the other two clamping jaws, the sleeve groove is sleeved on the second guide rail, the section shape of the inner cavity of the sleeve groove is consistent with the section shape of the second guide rail.

[0009] Preferably, the clamping jaw comprises a clamping block, two clamping arms hinged on the clamping block, and a fourth telescopic cylinder hinged between the two clamping arms, and the sleeve groove is arranged on the clamping block.

[0010] Preferably, the cutting machine comprises a support block arranged on the frame, a fifth telescopic cylinder arranged on the support block, a fourth motor arranged at one end of the fifth telescopic cylinder, and a saw blade arranged on the fourth motor, a sixth telescopic cylinder is arranged on one side of the support block, the sixth telescopic cylinder is arranged on the frame, the telescopic end of the sixth telescopic cylinder is arranged on the support block, and the telescopic direction of the sixth telescopic cylinder is perpendicular to the telescopic direction of the fifth telescopic cylinder.

[0011] Preferably, the inner lining conveyor comprises a fixing seat and a plurality of conveying rollers, the pipe diameter of the conveying rollers gradually increases from the middle part of the conveying rollers to the end part of the conveying rollers, a seventh telescopic cylinder is arranged on the fixing seat, a fixing frame is arranged above the seventh telescopic cylinder, the two sides of the seventh telescopic cylinder are hinged on the fixing seat and the fixing frame respectively, a third support is arranged between the conveying rollers and the fixing frame, the conveying rollers are rotatably arranged on the top end of the third support, the middle part of the third support is hinged on the fixing seat, and the bottom part of the third support is hinged on the fixing frame.

[0012] Preferably, the driving device further comprises third guide rails arranged on the two sides of the chain, second sliding blocks arranged on the third guide rails, the second sliding blocks are arranged on the support plate, the two sprockets are rotatably arranged on the frame, and the first motor is arranged on one side of the frame.

[0013] The utility model has the advantages that: firstly, the first hinge shaft, the second hinge shaft and the third hinge shaft are arranged, so that the two hinge plates and the two clamping plates on the side close to the hinge plate are formed into parallelograms, the first telescopic cylinder is elongated, the two clamping plates on the side away from the hinge plate can clamp the pipe pulling tool, meanwhile, the elongated first telescopic cylinder drives the hook to rotate towards the chain, so that one end of the hook can be hooked on the chain, the chain drives the pipe pulling device to move, the telescoping of the first telescopic cylinder is controlled, the running speed of the first motor is controlled, the pulling efficiency and the lining pipe efficiency are controlled, the lining pipe is not pulled too fast or too hard, and the labor intensity of the workers is reduced.

[0014] Secondly, the transmission wheel, the first transmission rope, the driving wheel and the second motor are arranged, the supporting plate can be quickly reset, the pipe pulling device is repeatedly used to pull the lining pipe, the assembly of the lining pipe is repeatedly completed. Moreover, the clamping jaw and the second telescopic cylinder are arranged, the lining pipe can be gripped, the runner, the second transmission rope and the third motor are arranged, the clamping jaw can move along the first guide rail, the gripped lining pipe is moved to the lining conveyor, the third telescopic cylinder is arranged, the clamping jaw can move along the first guide rail, the distance between the multiple clamping jaws is controlled, so that the clamping jaw can grip multiple lengths of lining pipe.

[0015] Thirdly, the fifth telescopic cylinder is arranged, the fourth motor and the saw blade can move towards the lining pipe, the fourth motor is rotated, the saw blade cuts the lining pipe, the sixth telescopic cylinder is arranged, the supporting block can move, the telescoping direction of the sixth telescopic cylinder is perpendicular to the telescoping direction of the fifth telescopic cylinder, the fourth motor and the saw blade can be controlled to move horizontally or vertically, the position of the saw blade cutting the lining pipe is adjusted. Moreover, the conveying roller adopts the variable-diameter roller, the lining pipe on the conveying roller is guided to move to the middle part of the conveying roller, the seventh telescopic cylinder, the fixing frame and the third support are arranged, the height of the conveying roller is controlled, multiple lengths of lining pipe of various diameters can be conveyed. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a first structural schematic view of the utility model.

[0017] Figure 2 It is Figure 1 It is an enlarged schematic view of A in the middle.

[0018] Figure 3for Figure 1 Enlarged diagram of point B in the middle.

[0019] Figure 4 for Figure 1 Enlarged diagram of point C in the middle.

[0020] Figure 5 This is a schematic diagram of the second structure of the present invention.

[0021] Figure 6 for Figure 5 Enlarged diagram of point D in the middle.

[0022] Figure 7 for Figure 5 Enlarged diagram of point E in the middle.

[0023] Figure 8 This is a three-dimensional schematic diagram of the conveying device in this utility model. Detailed Implementation

[0024] like Figures 1 to 8The inner lining pipe assembling device of the electromagnetic flowmeter comprises a rack 1, a cutting machine 2 arranged on the rack 1, an inner lining conveyor 3 arranged on one side of the cutting machine 2 and a pipe clamp 4 arranged between the inner lining conveyor 3 and the inner cutting machine 2, the cutting machine 2 and the pipe clamp 4 are both installed on the rack 1, and the pipe clamp 4 is used for clamping the pipe of the electromagnetic flowmeter, so as to facilitate the assembly of the inner lining pipe in the pipe of the electromagnetic flowmeter, the cutting machine 2 is provided with a pipe pulling device 5 and a driving device 6 on the side away from the inner lining conveyor 3, the pipe pulling device 5 comprises a support plate 5-1 arranged above the rack 1, two hinged plates 5-2 arranged above the support plate 5-1, a first hinged shaft 5-3 arranged between the two hinged plates 5-2, a second hinged shaft 5-4 arranged on each of the two hinged plates 5-2, two clamping plates 5-5 arranged on the side of the two hinged plates 5-2 close to the cutting machine 2, a third hinged shaft 5-6 arranged between the two clamping plates 5-5, a first telescopic cylinder 5-7 arranged on one of the clamping plates 5-5, a hook 5-8 arranged on the first telescopic cylinder 5-7, a hinged piece 5-9 arranged between the hook 5-8 and the first hinged shaft 5-3, the hinged piece 5-9 is installed on the first hinged shaft 5-3, one end of the hook 5-8 is hinged to the hinged piece 5-9, support frames are arranged on the two sides of the hook 5-8, springs are arranged on the support frames, the two ends of the springs are respectively installed on the hook 5-8 and the support frames, the two ends of the first telescopic cylinder 5-7 are respectively hinged to the hook 5-8 and the clamping plate 5-5, the middle portions of the two clamping plates 5-5 are hinged through the third hinged shaft 5-6, one end of the clamping plate 5-5 is hinged to one end of the hinged plate 5-2 through the second hinged shaft 5-4, and the other ends of the two hinged plates 5-2 are both hinged to the support plate 5-1 through the first hinged shaft 5-3, the driving device 6 comprises a chain 6-1 arranged below the hook 5-8, two chain wheels 6-2 engaged on the chain 6-1 and a first motor 6-3 for driving the chain wheels 6-2 to rotate.By assembling the pipe drawing tool on the inner liner pipe and passing the pipe of the electromagnetic flowmeter assembled from the pipe clamp 4, so that one side of the pipe drawing tool is located between the two clamping plates 5-5 away from one side of the hinged plate 5-2, by controlling the first telescopic cylinder 5-7 to extend and the operation of the first motor 6-3, the inner liner pipe is drawn into the pipe of the electromagnetic flowmeter, the inner liner pipe is assembled into the pipe of the electromagnetic flowmeter, and then the inner liner pipe is cut by the cutting machine 2 to complete the assembly of the inner liner pipe.

[0025] In this embodiment, the frame 1 is provided with a reset device 7, the reset device 7 includes two transmission wheels 7-1 rotatably arranged on the frame 1, a first transmission rope 7-2 tautly arranged between the two transmission wheels 7-1, a driving wheel 7-3 tautly arranged on the first transmission rope 7-2, and a second motor 7-4 driving the driving wheel 7-3 to rotate, the second motor 7-4 is installed on the frame 1, one side of the first transmission rope 7-2 is installed on the support plate 5-1, after the assembly of the inner liner pipe is completed, the first telescopic cylinder 5-7 is controlled to shorten, so that one end of the hook 5-8 is pulled out of the chain 6-1, and then the second motor 7-4 is operated, so that the empty support plate 5-1 can be quickly reset, so as to repeatedly complete the assembly of the inner liner pipe.

[0026] Please refer again to Figure 1 , 5 and 8, one side of the frame 1 is provided with a carrying device 8, the carrying device 8 includes a first support 8-1 arranged on one side of the frame 1, a first guide rail 8-2 arranged on the top of the first support 8-1, a first sliding block 8-3 arranged on the first guide rail 8-2, a moving plate 8-4 arranged on the first sliding block 8-3, a second telescopic cylinder 8-5 vertically arranged on the moving plate 8-4, and a clamping jaw 8-6 arranged on the second telescopic cylinder 8-5, the clamping jaw 8-6 is located above the chain 6-1, the second telescopic cylinder 8-5 is controlled to extend, so as to facilitate the clamping jaw 8-6 to grab the inner liner pipe on the frame 1; the first support 8-1 is rotatably provided with two rotating wheels 8-7, a second transmission rope 8-8 is tautly arranged between the two rotating wheels 8-7, one side of the second transmission rope 8-8 is connected with the moving plate 8-4, one side of one of the two rotating wheels 8-7 is provided with a third motor 8-9, the driving end of the third motor 8-9 is connected with the rotating wheel 8-7, and the third motor 8-9 is installed on the first support 8-1, so that the moving plate 8-4 can be moved along the first guide rail 8-2 by driving the third motor 8-9, so as to move the grabbed inner liner pipe to the inner liner conveyor 3, thereby facilitating the reset of the inner liner pipe.

[0027] Specifically, the second telescopic cylinder 8-5 and the clamping jaw 8-6 are provided with a second support 8-10, the second support 8-10 is horizontally installed on the second telescopic cylinder 8-5, the number of the clamping jaw 8-6 is three, one of the clamping jaw 8-6 is installed in the middle of the bottom surface of the second support 8-10, the other two clamping jaws 8-6 are respectively located on both sides of the second support 8-10, the second support 8-10 is provided with two third telescopic cylinders 8-11, the two third telescopic cylinders 8-11 are installed on the second support 8-10, one end of the two third telescopic cylinders 8-11 is respectively connected with the other two clamping jaws 8-6, the second support 8-10 is provided with a second guide rail 8-12, the top of the other two clamping jaws 8-6 is provided with a sleeve groove, the sleeve groove is sleeved on the second guide rail 8-12, the inner cavity section of the sleeve groove and the section shape of the second guide rail 8-12 are matched, so as to facilitate the control of the distance between the three clamping jaws 8-6, so as to grasp the inner liner pipe with various lengths.

[0028] In the embodiment, the clamping jaw 8-6 comprises a clamping block 8-6-1, two jaw arms 8-6-2 hinged on the clamping block 8-6-1, and a fourth telescopic cylinder 8-6-3 hinged between the two jaw arms 8-6-2, the sleeve groove is arranged on the clamping block 8-6-1, the rotation of the two jaw arms 8-6-2 can be controlled through the extension and contraction of the fourth telescopic cylinder 8-6-3, so as to facilitate the grasping of the inner liner pipe.

[0029] Please refer to Figure 1 , 5 and 6 again, the cutting machine 2 comprises a support block 2-1 arranged on the rack 1, a fifth telescopic cylinder 2-2 arranged on the support block 2-1, a fourth motor 2-3 arranged at one end of the fifth telescopic cylinder 2-2, and a saw blade 2-4 arranged on the fourth motor 2-3, one side of the support block 2-1 is provided with a sixth telescopic cylinder 2-5, the sixth telescopic cylinder 2-5 is installed on the rack 1, the telescopic end of the sixth telescopic cylinder 2-5 is installed on the support block 2-1, the telescopic direction of the sixth telescopic cylinder 2-5 is perpendicular to the telescopic direction of the fifth telescopic cylinder 2-2, so as to control the fourth motor 2-3 to move horizontally or vertically, so as to adjust the cutting position of the saw blade 2-4, further, the bottom of the support block 2-1 is provided with a through groove, the through groove is sleeved on the third guide rail 6-4, the inner cavity section of the through groove and the section shape of the third guide rail 6-4 are matched, so as to improve the stability of the movement of the support block 2-1.

[0030] Please refer to Figure 1 , 3And 5, the inner lining conveyor 3 includes a fixed seat 3-1 and several conveying rollers 3-2, the pipe diameter of the conveying roller 3-2 gradually increases from the middle part of the conveying roller 3-2 to the end of the conveying roller 3-2, so that the inner lining pipe placed on the conveying roller 3-2 can move above the middle part of the conveying roller 3-2, so that the inner lining pipe is assembled into the pipeline of the electromagnetic flowmeter, the seventh telescopic cylinder 3-3 is arranged on the fixed seat 3-1, the fixed frame 3-4 is arranged above the seventh telescopic cylinder 3-3, the two sides of the seventh telescopic cylinder 3-3 are respectively hinged on the fixed seat 3-1 and the fixed frame 3-4, the third support 3-5 is arranged between the conveying roller 3-2 and the fixed frame 3-4, the conveying roller 3-2 is rotatably installed at the top end of the third support 3-5, the middle part of the third support 3-5 is hinged on the fixed seat 3-1, the bottom of the third support 3-5 is hinged on the fixed frame 3-4, the fixed frame 3-4 is lifted and lowered through the telescopic movement of the seventh telescopic cylinder 3-3, so as to drive the third support 3-5 to rotate around the hinged part of the second support 8-10 and the fixed seat 3-1, and then the height of the conveying roller 3-2 is adjusted, so as to convey the inner lining pipes with various diameters.

[0031] Specifically, the driving device 6 further comprises third guide rails 6-4 arranged on both sides of the chain 6-1, second sliding blocks 6-5 arranged on the third guide rails 6-4, the second sliding blocks 6-5 are installed on the support plate 5-1, both chain wheels 6-2 are rotatably installed on the rack 1, and the first motor 6-3 is installed on one side of the rack 1, so as to improve the stability of the movement of the support plate 5-1 and reduce the shaking of the support plate 5-1.

[0032] The use method of the product is as follows: as Figures 1 to 8As shown, first, the size and shape of the measuring pipe and the inner lining pipe of the electromagnetic flowmeter are detected to ensure that they meet the assembly requirements. After the detection is completed, the measuring pipe is placed on the pipe clamp 4, and the inner lining pipe is placed on the conveying rollers 3-2. The middle axis of the inner lining pipe and the middle axis of the measuring pipe are aligned on the same axis by adjusting the extension amount of the seventh telescopic cylinder 3-3. Next, a suitable pipe pulling tool is selected. In order to ensure the cleanliness of the inner cavity of the measuring pipe, the middle part of the pipe pulling tool should be equipped with a grinding tool such as a drawknife to remove any residues that may exist in the measuring pipe. The rear part of the pipe pulling tool is assembled to the inner lining pipe, and the front part of the pipe pulling tool is passed through the measuring pipe so that the front part of the pipe pulling tool is located between the two clamping plates 5-5, so as to pull the inner lining pipe into the measuring pipe. Then, the first telescopic cylinder 5-7 is controlled to extend, so that the two clamping plates 5-5 clamp the pipe pulling tool away from one side of the hinged plate 5-2, and one end of the hook 5-8 can be hooked on the chain 6-1. Next, the first motor 6-3 is operated, the chain 6-1 is driven to rotate by the chain wheel 6-2, thereby driving the support plate 5-1 and the second sliding block 6-5 to move smoothly along the third guide rail 6-4, and further driving the inner lining pipe to penetrate into the measuring pipe. Then, when the end of the inner lining pipe moves into the measuring pipe, the fourth motor 2-3 is controlled to operate, and the fifth telescopic cylinder 2-2 is controlled to extend, so as to accurately cut the inner lining pipe using the saw blade 2-4. Finally, the fourth motor 2-3 is turned off, the first telescopic cylinder 5-7 and the fifth telescopic cylinder 2-5 are controlled to reset, and the second telescopic cylinder 8-5 and the fourth telescopic cylinder 8-6-3 are operated to grasp the remaining inner lining pipe. Then, the second motor 7-4 and the third motor 8-9 are controlled to operate, so as to reset the inner lining pipe and the support plate 5-1, thereby facilitating the cutting operation again using the product.

[0033] Through the first hinged shaft 5-3, the second hinged shaft 5-4 and the third hinged shaft 5-6, the two hinged plates 5-2 and the two clamping plates 5-5 are formed into a parallelogram on the side close to the hinged plate 5-2. By extending the first telescopic cylinder 5-7, the two clamping plates 5-5 can be controlled to clamp the pipe pulling tool away from one side of the hinged plate 5-2. At the same time, the first telescopic cylinder 5-7 is extended to rotate the hook 5-8 towards the chain 6-1, so that one end of the hook 5-8 can be hooked on the chain 6-1. The chain 6-1 drives the pipe pulling device 5 to move by controlling the extension of the first telescopic cylinder 5-7. By controlling the operating speed of the first motor 6-3, the pulling efficiency of the inner lining pipe can be controlled, thereby avoiding the inner lining pipe being pulled too fast or too hard, and reducing the labor intensity of the workers. The pipe of the electromagnetic flowmeter is assembled by the pipe clamp 4, and the inner lining pipe is cut by the cutting machine 2, so as to complete the assembly of the inner lining pipe.

[0034] The above-described embodiments are only preferred embodiments of the present application and are not intended to limit the scope of the present application. Therefore, equivalent changes or modifications made in accordance with the structure, features and principles described in the patent scope of the present application should be included in the patent scope of the present application.

Claims

1. An assembly device for an inner liner of an electromagnetic flowmeter, comprising a frame (1), a cutting machine (2) mounted on the frame (1), an inner liner conveyor (3) mounted on one side of the cutting machine (2), and a pipe clamp (4) mounted between the inner liner conveyor (3) and the inner cutting machine (2), characterized in that: The cutting machine (2) is provided with a tube pulling device (5) and a driving device (6) on the side away from the inner lining conveyor (3). The tube pulling device (5) includes a support plate (5-1) above the frame (1), two hinge plates (5-2) above the support plate (5-1), a first hinge shaft (5-3) between the two hinge plates (5-2), a second hinge shaft (5-4) on each of the two hinge plates (5-2), two clamping plates (5-5) on the side of the two hinge plates (5-2) near the cutting machine (2), a third hinge shaft (5-6) between the two clamping plates (5-5), a first telescopic cylinder (5-7) on one of the clamping plates (5-5), a hook (5-8) on the first telescopic cylinder (5-7), and a hook. A hinge (5-9) is provided between (5-8) and the first hinge shaft (5-3). The hinge (5-9) is installed on the first hinge shaft (5-3). One end of the hook (5-8) is hinged to the hinge (5-9). The two ends of the first telescopic cylinder (5-7) are respectively hinged to the hook (5-8) and the clamping plate (5-5). The middle parts of the two clamping plates (5-5) are hinged to each other through the third hinge shaft (5-6). One end of the clamping plate (5-5) is hinged to one end of the hinge plate (5-2) through the second hinge shaft (5-4). The other ends of the two hinge plates (5-2) are both hinged to the support plate (5-1) through the first hinge shaft (5-3). The drive device (6) includes a chain (6-1) disposed below the hook (5-8), two sprockets (6-2) meshing on the chain (6-1), and a first motor (6-3) that drives the sprockets (6-2) to rotate.

2. The liner assembly equipment for the electromagnetic flowmeter according to claim 1, characterized in that: The frame (1) is provided with a reset device (7). The reset device (7) includes two drive wheels (7-1) rotatably mounted on the frame (1), a first drive rope (7-2) tensioned between the two drive wheels (7-1), a drive wheel (7-3) tensioned on the first drive rope (7-2), and a second motor (7-4) driving the drive wheel (7-3) to rotate. The second motor (7-4) is mounted on the frame (1), and one side of the first drive rope (7-2) is mounted on the support plate (5-1).

3. The liner assembly equipment for the electromagnetic flowmeter according to claim 1, characterized in that: A conveying device (8) is provided on one side of the frame (1). The conveying device (8) includes a first support (8-1) provided on one side of the frame (1), a first guide rail (8-2) provided on the top of the first support (8-1), a first slider (8-3) provided on the first guide rail (8-2), a moving plate (8-4) provided on the first slider (8-3), a second telescopic cylinder (8-5) vertically provided on the moving plate (8-4), and a gripper (8-6) provided on the second telescopic cylinder (8-5). (8-6) is located above the chain (6-1); two rotating wheels (8-7) are rotatably arranged on the first bracket (8-1), and a second transmission rope (8-8) is tensioned between the two rotating wheels (8-7). One side of the second transmission rope (8-8) is connected to the moving plate (8-4). A third motor (8-9) is arranged on one side of one of the rotating wheels (8-7). The driving end of the third motor (8-9) is connected to the rotating wheel (8-7). The third motor (8-9) is mounted on the first bracket (8-1).

4. The liner assembly equipment for the electromagnetic flowmeter according to claim 3, characterized in that: A second support (8-10) is provided between the second telescopic cylinder (8-5) and the gripper (8-6). The second support (8-10) is horizontally mounted on the second telescopic cylinder (8-5). There are three grippers (8-6), one of which is mounted on the center of the bottom surface of the second support (8-10), and the other two grippers (8-6) are located on both sides of the second support (8-10). Two third telescopic cylinders are provided on the second support (8-10). (8-11) Both third telescopic cylinders (8-11) are mounted on the second bracket (8-10). One end of each third telescopic cylinder (8-11) is connected to the other two grippers (8-6). The second bracket (8-10) is provided with a second guide rail (8-12). The top of each of the other two grippers (8-6) is provided with a sleeve groove, which is fitted onto the second guide rail (8-12). The cross-sectional shape of the inner cavity of the sleeve groove matches the cross-sectional shape of the second guide rail (8-12).

5. The liner assembly equipment for the electromagnetic flowmeter according to claim 4, characterized in that: The gripper (8-6) includes a gripper block (8-6-1), two gripper arms (8-6-2) hinged on the gripper block (8-6-1), and a fourth telescopic cylinder (8-6-3) hinged between the two gripper arms (8-6-2). The sleeve groove is formed on the gripper block (8-6-1).

6. The liner assembly equipment for the electromagnetic flowmeter according to claim 1, characterized in that: The cutting machine (2) includes a support block (2-1) on the frame (1), a fifth telescopic cylinder (2-2) on the support block (2-1), a fourth motor (2-3) on one end of the fifth telescopic cylinder (2-2), and a saw blade (2-4) on the fourth motor (2-3). A sixth telescopic cylinder (2-5) is provided on one side of the support block (2-1). The sixth telescopic cylinder (2-5) is mounted on the frame (1), and the telescopic end of the sixth telescopic cylinder (2-5) is mounted on the support block (2-1). The telescopic direction of the sixth telescopic cylinder (2-5) is perpendicular to the telescopic direction of the fifth telescopic cylinder (2-2).

7. The liner assembly equipment for the electromagnetic flowmeter according to claim 1, characterized in that: The inner lining conveyor (3) includes a fixed base (3-1) and several conveying rollers (3-2). The diameter of the conveying rollers (3-2) gradually increases from the middle to the end of the conveying rollers (3-2). A seventh telescopic cylinder (3-3) is provided on the fixed base (3-1). A fixed frame (3-4) is provided above the seventh telescopic cylinder (3-3). The two sides of the seventh telescopic cylinder (3-3) are respectively hinged to the fixed base (3-1) and the fixed frame (3-4). A third support (3-5) is provided between the conveying rollers (3-2) and the fixed frame (3-4). The conveying rollers (3-2) are rotatably mounted on the top of the third support (3-5). The middle part of the third support (3-5) is hinged to the fixed base (3-1), and the bottom of the third support (3-5) is hinged to the fixed frame (3-4).

8. The liner assembly equipment for the electromagnetic flowmeter according to claim 1, characterized in that: The drive device (6) further includes a third guide rail (6-4) provided on both sides of the chain (6-1), a second slider (6-5) provided on the third guide rail (6-4), the second slider (6-5) being mounted on the support plate (5-1), two sprockets (6-2) being rotatably mounted on the frame (1), and a first motor (6-3) being mounted on one side of the frame (1).

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