Electric heater detection equipment

Abstract

The invention relates to the technical field of electric heater detection, in particular to electric heater detection equipment which comprises an inner container conveying line, a material trolley and a heater inner container, a detection table is arranged beside the inner container conveying line, a supporting frame is arranged on the detection table, the bottom end of the supporting frame is slidably connected with a sliding frame, and a material pushing platform used for automatically pushing the material trolley is arranged beside the detection table. A plurality of containing tables used for containing heater liners are fixedly connected to the liner conveying line at equal intervals, and feeding frames are slidably connected to the two sides of the bottom end of the sliding frame. After the detection is completed, the device can be automatically pushed to a material vehicle for blanking, thereby achieving the automatic airtightness detection of the inner container of the electric heater without manual carrying, and greatly improving the convenience and detection efficiency of the device.

Description

Technical Field

[0001] The present invention relates to the technical field of electric heater detection, and particularly to an electric heater detection device. Background Art

[0002] With the continuous increase in the demand for electric heaters in industrial and civil fields, the airtightness detection of the inner liner of electric heaters has become particularly important. The inner liner needs to have good airtightness during use to ensure that the heated liquid does not leak, thereby ensuring the normal operation and safety of the equipment. Therefore, the airtightness detection of the inner liner of electric heaters is a key link to ensure product quality and safety. If there is a leak in the inner liner, it may cause the heated liquid to leak, which not only affects the normal operation of the equipment but also may lead to safety accidents. Therefore, it is necessary to perform airtightness detection on the inner liner of electric heaters, which helps to detect potential leakage problems in advance and avoid failures during actual use.

[0003] In the prior art, there is an electric water heater inner liner sealing performance detection device with the publication number of CN102680180B. When the inner liner to be detected is placed on the base frame of the inner liner fixing frame, the operation control device can automatically fix the relative position of the inner liner and can automatically seal the end opening, water inlet pipe, water outlet pipe, and sewage pipe of the inner liner. At the same time, it can also inflate the inner liner; it can be automatically immersed in the water in the water tank for detection, and then the operation control device can automatically reset and replace it with the inner liner to be detected, which is convenient to use and has high efficiency.

[0004] Although the above device can automatically fix the position of the water heater inner liner, there are still some defects in the actual detection process. In the current detection process, it is necessary to manually carry the inner liner from the conveyor line to the detection machine and place the water inlet and outlet of the inner liner upward and align them with the detection ports of the detection instrument. Since the inner liner is large and heavy, this process is not only time-consuming and laborious but also easily causes operator fatigue and increases the risk of operation errors.

[0005] Therefore, an electric heater detection device is proposed to solve the above problems. Summary of the Invention

[0006] The purpose of the present invention is to propose an electric heater detection device to solve the drawbacks existing in the background art.

[0007] To achieve the above object, the technical solution adopted by the present invention is as follows: An electric heater detection device includes an inner tank conveying line, a material cart, and a heater inner tank. A detection table is provided beside the inner tank conveying line. A support frame is provided on the detection table. The bottom end of the support frame is slidably connected with a sliding frame. A pushing platform for automatically pushing the material cart is provided beside the detection table. A plurality of placement tables for placing the heater inner tank are fixedly connected at equal intervals on the inner tank conveying line. The upper feeding frames are slidably connected to both sides of the bottom end of the sliding frame. A detection component for inserting into the water inlet and outlet ends of the heater inner tank for detection is provided at the bottom end of the sliding frame. A moving mechanism for driving the sliding frame to move back and forth is provided on the support frame. Telescopic cylinders are fixedly connected to the sides of the upper feeding frames away from each other. Guide rods are slidably connected inside the telescopic cylinders. A guiding spring is fixedly connected between the inner side of the telescopic cylinder and the bottom end of the guide rod. An adjusting mechanism for adjusting the moving position of the upper feeding frame is provided on the support frame.

[0008] In the above technical solution, further, the adjusting mechanism includes side plates. A straight groove is opened at the bottom of the support frame. Upper horizontal grooves and lower horizontal grooves are respectively opened at both ends of the straight groove. The opening directions of the upper horizontal groove and the lower horizontal groove are set in opposite directions. An upper inclined groove is opened between the upper horizontal groove and the straight groove. A lower inclined groove is opened between the lower horizontal groove and the straight groove. An upper groove is opened at the connection of the upper inclined groove and the straight groove. A lower groove is opened at a position beside the lower inclined groove inside the straight groove. The guide rods are all inserted inside the straight groove. The side plates are fixedly connected to the bottom end of the sliding frame. Adjusting springs are fixedly connected between the side plates and the side walls of the upper feeding frames.

[0009] In the above technical solution, further, the inner wall of the upper groove and the connection of the upper inclined groove are inclined. The upper groove is inclined near the lower horizontal groove. Both ends of the lower groove are inclined. The top end of the guide rod is set as a smooth arc surface.

[0010] In the above technical solution, further, the number of turns of one of the adjusting springs is half of the number of turns of the other adjusting spring. The connection points of the upper inclined groove and the lower inclined groove with the straight groove are staggered.

[0011] In the above technical solution, further, the moving mechanism includes a moving motor. A pair of upper plates are fixedly connected to the side wall of the support frame. A threaded rod is rotatably connected between the upper plates. The moving motor is fixedly connected to the side wall of one of the upper plates. The output end of the moving motor passes through the upper plate and is fixedly connected to the side wall of the threaded rod. A moving block is fixedly connected to the top end of the sliding frame. And the threaded rod passes through and is threadedly connected to the inner side wall of the moving block.

[0012] In the above technical solution, further, sliding plates are slidably connected to the inner sides of the loading frames. Chutes are provided on both sides of the bottom end of the sliding frames. The top ends of the sliding plates extend to the inner sides of the sliding frames. Clamping blocks for clamping the inner liner of the heater are fixedly connected to the bottom ends of the mutually adjacent sides of the sliding plates. The clamping blocks penetrate through the outer walls of the loading frames. Clamping springs are fixedly connected between the inner sides of the loading frames and the side walls of the sliding plates. Top plates are slidably connected to the positions on the mutually remote sides of the sliding plates in the sliding frames. A pair of electric telescopic cylinders are fixedly connected to the bottom end inside the sliding frames. The output ends of the electric telescopic cylinders are fixedly connected to the side walls of the top plates.

[0013] In the above technical solution, further, a pressing rod is fixedly connected to the top end of the outer wall of the inspection ring on the inner liner of the heater. A through groove is provided on the side wall of the loading frame close to the pressing rod. A pressing block is fixedly connected to the side wall of one of the sliding plates at a position beside the through groove. The pressing block is arc-shaped. A V-shaped groove is provided on the side wall of the pressing block.

[0014] In the above technical solution, further, a first touch sensor is fixedly connected through the bottom end of the support frame above the inner liner conveyor line. A second touch sensor is fixedly connected through the bottom end of the support frame above the inspection table. A third touch sensor is fixedly connected through the bottom end of the support frame above the pushing platform.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. Through the settings of structures such as the support frame, the moving mechanism, and the adjusting mechanism, the present invention can automatically take out the inner liner of the heater on the inner liner conveyor line, push it to the inspection table for airtight detection, and then automatically push it to the material cart for blanking after the detection is completed, so as to realize the automatic airtight detection of the inner liner of the electric heater, without the need for workers to carry it, greatly improving the convenience performance and detection efficiency of the device.

[0016] 2. Through the settings of structures such as the electric telescopic cylinder, the clamping block, and the sliding plate, the present invention can clamp both ends of the inner liner during the process of loading and unloading the inner liner of the electric heater, and through the settings of structures such as the pressing block and the pressing rod, before clamping, the pressing rod on the inner liner can be extruded through the V-shaped groove, so that the pressing rod is extruded to the middle of the V-shaped groove, and then the water inlet and outlet of the inner liner are adjusted to the accurate position, ensuring the rapid alignment and testing of the subsequent detection components, and improving the stability during the operation of the device. Description of the Drawings

[0017] Figure 1 It is a rear three-dimensional structural schematic diagram of the detection device of the present invention; Figure 2 It is a front three-dimensional structural schematic diagram of the detection device of the present invention; Figure 3Schematic diagram of the overall appearance structure of the support frame and the inner tank conveyor line of the present invention; Figure 4 Schematic diagram of the overall appearance structure of the inner tank of the electric heater of the present invention; Figure 5 Schematic diagram of the top-down three-dimensional structure of the support frame and the sliding frame of the present invention; Figure 6 For the attachment of the present invention Figure 5 Schematic diagram of the partial enlarged structure at A in the figure; Figure 7 Schematic diagram of the bottom-up three-dimensional structure of the support frame of the present invention; Figure 8 Schematic diagram of the top-down three-dimensional structure when the sliding frame of the present invention is opened; Figure 9 Schematic diagram of the separated three-dimensional structure of the sliding plate, the loading frame and the guide rod of the present invention.

[0018] In the figure: 1. Inner tank conveyor line; 2. Material cart; 3. Heater inner tank; 4. Detection table; 5. Support frame; 6. Sliding frame; 7. Pushing platform; 8. Placing table; 9. Loading frame; 10. Detection component; 11. Telescopic cylinder; 12. Guide rod; 13. Guide spring; 14. Side plate; 15. Straight groove; 16. Upper horizontal groove; 17. Lower horizontal groove; 18. Upper inclined groove; 19. Lower inclined groove; 20. Upper groove; 21. Lower groove; 22. Adjusting spring; 23. Moving motor; 24. Upper plate; 25. Moving block; 26. Sliding plate; 27. Clamping block; 28. Clamping spring; 29. Top plate; 30. Electric telescopic cylinder; 31. Extrusion rod; 32. Chute; 33. Through groove; 34. Extrusion block; 35. V-shaped groove; 36. First touch sensor; 37. Second touch sensor; 38. Third touch sensor; 39. Threaded rod. Detailed implementation manners

[0019] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific implementation manners.

[0020] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described herein. Therefore, the present invention is not limited by the limitations of the specific embodiments disclosed below.

[0021] Such as Figures 1-9An electric heater detection device shown in the figure includes an inner tank conveyor line 1, a material cart 2, and a heater inner tank 3. A detection table 4 is provided beside the inner tank conveyor line 1. A support frame 5 is provided on the detection table 4. The bottom end of the support frame 5 is slidably connected with a sliding frame 6. A pushing platform 7 for automatically pushing the material cart 2 is provided beside the detection table 4. The pushing platform 7 is mainly driven by a driving component to move the material cart 2 within a specified frame, so as to change the blanking position, which is a mature technology in the prior art and will not be described in detail here. A number of placement platforms 8 for placing the heater inner tank 3 are fixedly connected at equal intervals on the inner tank conveyor line 1. Here, it should be noted that the inner tank conveyor line 1 is a circular conveyor line, so that the cyclic conveyance of the placement platform 8 can be realized. Both sides of the bottom end of the sliding frame 6 are slidably connected with loading frames 9. A detection component 10 for inserting and detecting the water inlet and outlet ends of the heater inner tank 3 is provided at the bottom end of the sliding frame 6. The detection component 10 first docks the inflation port with the water inlet and outlet of the heater inner tank 3 through a telescopic component, and then inflates the inner tank through an inflation component and an inflation pipeline until the air pressure inside the inner tank reaches the set initial air pressure value. Subsequently, the air pressure change inside the inner tank is monitored in real time through a pressure sensor to realize the airtight detection of the heater inner tank 3; A moving mechanism for driving the sliding frame 6 to move back and forth is provided on the support frame 5. Telescopic cylinders 11 are fixedly connected to the sides of the loading frames 9 away from each other. Guide rods 12 are slidably connected inside the telescopic cylinders 11. A guiding spring 13 is fixedly connected between the inner side of the telescopic cylinder 11 and the bottom end of the guide rod 12. An adjusting mechanism for adjusting the moving position of the loading frame 9 is provided on the support frame 5; The adjusting mechanism includes side plates 14. Straight grooves 15 are opened at the bottom of the support frame 5. Upper horizontal grooves 16 and lower horizontal grooves 17 are respectively opened at both ends of the straight groove 15. The opening directions of the upper horizontal groove 16 and the lower horizontal groove 17 are set in opposite directions. Upper inclined grooves 18 are opened between the upper horizontal groove 16 and the straight groove 15. Lower inclined grooves 19 are opened between the lower horizontal groove 17 and the straight groove 15. Upper grooves 20 are opened at the connection of the upper inclined groove 18 and the straight groove 15. Lower grooves 21 are opened at the position beside the lower inclined groove 19 inside the straight groove 15. The guide rods 12 are all inserted inside the straight groove 15. The side plates 14 are fixedly connected to the bottom end of the sliding frame 6. Adjusting springs 22 are fixedly connected between the side plates 14 and the side walls of the loading frames 9; The inner wall of the upper groove 20 and the connection with the upper inclined groove 18 are inclined. The upper groove 20 is inclined near the lower horizontal groove 17. Both ends of the lower groove 21 are inclined. The top end of the guide rod 12 is set as a smooth arc surface, which is convenient for the guide rod 12 to quickly slide out from the inclined surfaces of the upper groove 20 and the lower groove 21. The number of turns of one of the adjusting springs 22 is half of the number of turns of the other adjusting spring 22. Since the initial positions of the two loading frames 9 are different, the initial positions of the adjusting springs 22 also need to be different. The connection points of the upper inclined groove 18 and the lower inclined groove 19 with the straight groove 15 are staggered; The moving mechanism includes a moving motor 23. A pair of upper plates 24 are fixedly connected to the side wall of the support frame 5. A threaded rod 39 is rotatably connected between the upper plates 24. The moving motor 23 is fixedly connected to the side wall of one of the upper plates 24. The output end of the moving motor 23 passes through the upper plate 24 and is fixedly connected to the side wall of the threaded rod 39. The top end of the sliding frame 6 is fixedly connected with a moving block 25, and the threaded rod 39 passes through and is threadedly connected to the inner side wall of the moving block 25; During the production process of the electric heater inner tank 3, first, the material cart 2 is pushed onto the feeding platform 7, and the position of the feeding mechanism on the feeding platform 7 on the material cart 2 is fixed. Then, the processed electric heater inner tank 3 is gradually conveyed under the support frame 5 by the inner tank conveying line 1. Subsequently, the inner tank conveying line 1 is controlled to stop running, and the moving motor 23 is controlled to start to drive the threaded rod 39 to rotate, thereby driving the threadedly connected moving block 25 to move, and further driving the sliding frame 6 to slide at the bottom end of the support frame 5 (the sliding frame 6 at the initial position is located above the feeding platform 7, and one of the guide rods 12 is inserted at the connection of the lower horizontal groove 17 and the lower inclined groove 19). Then, during the movement of the sliding frame 6, one of the guide rods 12 will be gradually slid into the lower inclined groove 19. Then, under the extrusion of the inclined surface of the lower inclined groove 19, one of the guide rods 12 and the feeding frame 9 will be pushed outward to move, and one of the adjusting springs 22 will be gradually compressed, while the other guide rod 12 will always slide in the straight groove 15; Subsequently, the sliding frame 6 moves above the inspection table 4. Before that, the other guide rod 12 will move below the upper groove 20. Then, under the elastic force of the guiding spring 13, the guide rod 12 is pushed into the upper groove 20. However, due to the limitation of the step between one side of the upper groove 20 and the straight groove 15, the guide rod 12 cannot continue to slide into the straight groove 15. Then, under the extrusion of the upper groove 20, it gradually slides into the upper inclined groove 18 and gradually compresses one of the adjusting springs 22. Subsequently, the guide rod 12 in the lower inclined groove 19 will slide out of the lower inclined groove 19, slide into the straight groove 15, and be inserted into the lower groove 21 under the elastic force of the guiding spring 13. At the same time, the rear feeding frame 9 moves to the middle position. Then, under the continuous movement of the sliding frame 6, the front feeding frame 9 will be driven to gradually move under the extrusion of the upper inclined groove 18. Subsequently, the rear feeding frame 9 moves beside the heater inner tank 3, and the guide rod 12 on the front feeding frame 9 moves to the connection of the upper inclined groove 18 and the upper horizontal groove 16, thereby releasing the sliding restriction on the guide rod 12. Then, under the elastic force of the adjusting spring 22, it is pulled back to the reset position, driving the guide rod 12 to slide into the straight groove 15, and further driving the front feeding frame 9 to move beside the heater inner tank 3; Subsequently, the moving motor 23 can be controlled to reverse, driving the sliding frame 6 to move in the reverse direction, driving the heater inner tank 3 to be removed from the placement table 8 and transferred to the detection table 4. Subsequently, the detection component 10 can be controlled to start for airtight testing of the heater inner tank 3. Finally, after the testing is completed, the moving motor 23 can be controlled to start again to push the heater inner tank 3 onto the material cart 2. During this process, the two guide rods 12 will be driven to slide in the straight grooves 15. When the guide rod 12 passes through the lower groove 21, since there is a step between the lower groove 21 and the lower inclined groove 19, the guide rod 12 will not slide into the lower inclined groove 19. Subsequently, the guide rod 12 passes through the upper groove 20. When passing through, the guiding spring 13 will push the top end of the guide rod 12 in, and then slide out along the inclined surfaces of the upper groove 20 and the lower groove 21, compressing the guiding spring 13. Finally, the heater inner tank 3 is transferred onto the material cart 2, and one of the guide rods 12 moves beside the lower horizontal groove 17, releasing the sliding restriction on the guide rod 12. Under the elastic force of the adjusting spring 22, the feeding frame 9 is pulled away from beside the heater inner tank 3. Repeating this process can achieve the automatic detection of the electric heater inner tank 3.

[0022] To improve the stability during the detection process, sliding plates 26 are slidably connected to the inner sides of the feeding frames 9. Chute grooves 32 are provided at both sides of the bottom end of the sliding frame 6. Through the setting of the chute grooves 32, the sliding plates 26 can slide in the chute grooves 32 without affecting the normal movement of the feeding frames 9. The top ends of the sliding plates 26 extend to be arranged inside the sliding frame 6. Clamping blocks 27 for clamping the heater inner tank 3 are fixedly connected to the bottom ends of the sliding plates 26 on the side close to each other. The clamping blocks 27 penetrate through the outer walls of the feeding frames 9. Clamping springs 28 are fixedly connected between the inner sides of the feeding frames 9 and the side walls of the sliding plates 26. Top plates 29 are slidably connected to the positions on the inner side of the sliding frame 6 relative to the sides where the sliding plates 26 are far from each other. Through the setting of the top plates 29, the normal sliding of the sliding plates 26 will not be hindered, and thus the normal position of the feeding frames 9 will not be affected. At the same time, the heater inner tank 3 can be quickly clamped. A pair of electric telescopic cylinders 30 are fixedly connected to the bottom end inside the sliding frame 6, and the output ends of the electric telescopic cylinders 30 are fixedly connected to the side walls of the top plates 29. When the feeding frame 9 moves to both ends of the heater inner tank 3, the electric telescopic cylinders 30 can be controlled to start, driving the top plates 29 to move, thereby pushing the sliding plates 26 to slide inside the feeding frames 9, and at the same time driving the clamping blocks 27 to extend out to clamp both sides of the heater inner tank 3 and stretching the clamping springs 28, so as to realize the limiting of both ends of the heater inner tank 3 and ensure the stability during the subsequent pushing process. And before pushing the heater inner tank 3 onto the material cart 2 after the detection is completed, the controller will control the rear electric telescopic cylinder 30 to release the clamping of the heater inner tank 3 to ensure that when the rear feeding frame 9 is pulled away from beside the heater inner tank 3, the heater inner tank 3 will not be driven to displace.

[0023] In order to further improve the stability during the device testing process, a pressing rod 31 is fixedly connected to the top end of the outer wall of the maintenance ring on the inner tank 3 of the heater. A through groove 33 is provided on the side wall of the loading frame 9 near one side of the pressing rod 31. A pressing block 34 is fixedly connected to the side wall of one of the sliding plates 26 at a position beside the through groove 33. The pressing block 34 is arranged in an arc shape. Since the maintenance ring on the inner tank 3 of the heater is annular, in order to ensure that the pressing block 34 will not be obstructed, the pressing block 34 needs to be arranged in an arc shape. A V-shaped groove 35 is provided on the side wall of the pressing block 34; When the electric telescopic cylinder 30 starts and drives the sliding plate 26 to move through the top plate 29, it will first drive the pressing block 34 to extend out of the through groove 33. If the water inlet and outlet on the inner tank 3 of the heater are not in an upward vertical state at this time, the inclined surface of the V-shaped groove 35 on the pressing block 34 will press the pressing rod 31, thereby pressing the inner tank 3 of the heater towards the middle, rotating the water inlet and outlet to the middle position, ensuring that the subsequent detection component 10 can be correctly docked with the water inlet and outlet. Here, it should be noted that when placing the inner tank 3 of the heater on the placing table 8, the water inlet and outlet should be placed upwards, but the placement process will not be very accurate, so there will be a deviation phenomenon, but the deviation range will not be very large. The V-shaped groove 35 is sufficient to adjust the water inlet and outlet to the correct position, and then only fine-tuning is required to accurately adjust the water inlet and outlet positions of the inner tank 3 of the heater.

[0024] In order to improve the automation efficiency of the device, a first touch sensor 36 is fixedly connected through the bottom end of the support frame 5 above the inner tank conveyor line 1. The first touch sensor 36 is electrically connected to the moving motor 23 and the electric telescopic cylinder 30 through a controller. When the sliding frame 6 moves above the inner tank conveyor line 1, it can touch the first touch sensor 36, and then transmit the signal to the controller. The controller first controls the moving motor 23 to stop running, then controls the electric telescopic cylinder 30 to start to clamp the inner tank 3 of the heater, and then controls the moving motor 23 to reverse for feeding. A second touch sensor 37 is fixedly connected through the bottom end of the support frame 5 above the detection table 4; The second touch sensor 37 is electrically connected between the detection component 10 and the moving motor 23 through the controller. When the sliding frame 6 drives the heater inner tank 3 to move above the detection table 4, it will touch the second touch sensor 37, and then transmit a signal to the controller. The controller controls the moving motor 23 to stop running, controls the detection component 10 to start, automatically detects the heater inner tank 3, then controls the detection component 10 to reset after the detection is completed, and then controls the moving motor 23 to continue running for discharging. A third touch sensor 38 is fixedly connected through the bottom end of the support frame 5 relative to the upper position of the pushing platform 7. The third touch sensor 38 is electrically connected between the electric telescopic cylinder 30 and the moving motor 23 through the controller. When the sliding frame 6 drives the detected heater inner tank 3 to move onto the material vehicle 2, it will touch the third touch sensor 38, and then transmit a signal to the controller. The controller controls the moving motor 23 to stop running, and then controls another electric telescopic cylinder 30 to retract, so as to control the moving motor 23 to rotate forward and reset, thus realizing the automatic operation of the device.

[0025] The above shows and describes the basic principles, main features and advantages of the present invention.

[0026] Those skilled in the art of this industry should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification is only the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed.

Claims

1. An electric heater detection device, comprising an inner tank conveyor line (1), a material cart (2) and a heater inner tank (3), characterized in that: There is a detection table (4) beside the inner tank conveyor line (1). There is a support frame (5) on the detection table (4). The bottom end of the support frame (5) is slidably connected with a sliding frame (6). There is a pushing platform (7) beside the detection table (4) for automatically pushing the material cart (2). A number of placement tables (8) for placing the heater inner tank (3) are fixedly connected at equal intervals on the inner tank conveyor line (1). Both sides of the bottom end of the sliding frame (6) are slidably connected with loading frames (9). A detection component (10) for inserting into the water inlet and outlet ends of the heater inner tank (3) for detection is arranged at the bottom end of the sliding frame (6). A moving mechanism for driving the sliding frame (6) to move back and forth is arranged on the support frame (5). Telescopic cylinders (11) are fixedly connected to the sides of the loading frames (9) away from each other. Guide rods (12) are slidably connected inside the telescopic cylinders (11). A guide spring (13) is fixedly connected between the inside of the telescopic cylinder (11) and the bottom end of the guide rod (12). An adjusting mechanism for adjusting the moving position of the loading frame (9) is arranged on the support frame (5).

2. The electric heater detection device according to claim 1, characterized in that: The adjusting mechanism includes side plates (14). A straight groove (15) is formed at the bottom of the support frame (5). Upper horizontal grooves (16) and lower horizontal grooves (17) are respectively formed at both ends of the straight groove (15). The opening directions of the upper horizontal groove (16) and the lower horizontal groove (17) are arranged in opposite directions. An upper inclined groove (18) is formed between the upper horizontal groove (16) and the straight groove (15). A lower inclined groove (19) is formed between the lower horizontal groove (17) and the straight groove (15). An upper groove (20) is formed at the connection of the upper inclined groove (18) and the straight groove (15). A lower groove (21) is formed at a position beside the lower inclined groove (19) inside the straight groove (15). The guide rods (12) are respectively inserted inside the straight groove (15). The side plates (14) are fixedly connected to the bottom end of the sliding frame (6). Adjusting springs (22) are fixedly connected between the side plates (14) and the side walls of the loading frames (9).

3. The electric heater detection device according to claim 2, wherein: The inner wall of the upper groove (20) is inclined at the connection with the upper inclined groove (18). The upper groove (20) is inclined near the lower horizontal groove (17). Both ends of the lower groove (21) are inclined. The top end of the guide rod (12) is set as a smooth arc surface.

4. An electric heater detection device according to claim 2, characterized in that: The number of turns of one of the adjusting springs (22) is half of the number of turns of the other adjusting spring (22). The connection points of the upper inclined groove (18) and the lower inclined groove (19) with the straight groove (15) are arranged staggeredly.

5. The electric heater detection device according to claim 1, characterized in that: The moving mechanism includes a moving motor (23). A pair of upper plates (24) are fixedly connected to the side wall of the support frame (5). A threaded rod (39) is rotatably connected between the upper plates (24). The moving motor (23) is fixedly connected to the side wall of one of the upper plates (24). The output end of the moving motor (23) passes through the upper plate (24) and is fixedly connected to the side wall of the threaded rod (39). A moving block (25) is fixedly connected to the top end of the sliding frame (6). And the threaded rod (39) passes through and is threadedly connected to the inner side wall of the moving block (25).

6. The electric heater detection device according to claim 1, characterized in that: Sliding plates (26) are slidably connected to the inner sides of the loading frames (9). Chutes (32) are formed on both sides of the bottom end of the sliding frames (6). The top ends of the sliding plates (26) extend into the inner sides of the sliding frames (6). Clamping blocks (27) for clamping the heater inner liners (3) are fixedly connected to the bottom ends of the sliding plates (26) on the side close to each other. The clamping blocks (27) penetrate through the outer walls of the loading frames (9). Clamping springs (28) are fixedly connected between the inner sides of the loading frames (9) and the side walls of the sliding plates (26). Top plates (29) are slidably connected to the positions on the inner sides of the sliding frames (6) that are away from the sliding plates (26). A pair of electric telescopic cylinders (30) are fixedly connected to the bottom end inside the sliding frames (6). The output ends of the electric telescopic cylinders (30) are fixedly connected to the side walls of the top plates (29).

7. An electric heater detection device according to claim 6, characterized in that: An extrusion rod (31) is fixedly connected to the top end of the outer wall of the inspection ring on the heater inner liner (3). A through groove (33) is formed in the side wall of the loading frame (9) close to the extrusion rod (31). An extrusion block (34) is fixedly connected to the side wall of one of the sliding plates (26) beside the through groove (33). The extrusion block (34) is arc-shaped. A V-shaped groove (35) is formed in the side wall of the extrusion block (34).

8. An electric heater detection device according to claim 1, characterized in that: A first touch sensor (36) is fixedly connected through the bottom end of the support frame (5) above the inner liner conveyor line (1). A second touch sensor (37) is fixedly connected through the bottom end of the support frame (5) above the inspection table (4). A third touch sensor (38) is fixedly connected through the bottom end of the support frame (5) above the pushing platform (7).

Images