Air filter assembly device for injection molded part

Abstract

The air filter assembly device comprises a long operation table, a transverse moving part, a clamping part, an assembly part and a hot melting part, the transverse moving part is arranged on the long operation table; the clamping part is arranged on the transverse moving part; the assembling part and the hot melting part are arranged right above the long operation table in a crossing manner in sequence; the transverse moving part comprises a hollow strip-shaped cylinder, a first servo motor, a first lead screw and a first lead screw nut; the hollow strip-shaped cylinder is arranged on the upper end face of the long operation table in the length direction of the long operation table. The first servo motor is arranged at one end of the inner wall of the hollow strip-shaped cylinder, the first lead screw is connected with an output shaft of the first servo motor, and the other end of the first lead screw is coupled with one end of the inner wall of the hollow strip-shaped cylinder; the first lead screw nut is arranged on the first lead screw, and the first lead screw nut is located in the hollow strip-shaped cylinder. According to the utility model, the assembly efficiency of the air filtering sheet is improved.

Description

Technical Field

[0001] The utility model relates to an assembling device, in particular to a device capable of assembling air filter pieces on injection-molded products, belonging to the technical field of air filter piece installation equipment. Background Art

[0002] At present, the assembly of air filter pieces for injection-molded products is completed by manual operation of workers; the workers manually place the air filter pieces on the installation positions of the injection-molded parts and then manually perform welding; the air filter pieces have front and back sides, and it is easy for human negligence to cause the front and back installation of the air filter pieces to be misaligned during the installation process; in addition, the number of injection-molded products is huge, and the workers are prone to make mistakes during the high-intensity and high-frequency installation process. The efficiency and accuracy of manual assembly cannot meet the requirements of the production schedule and the supply speed; therefore, a device capable of assisting workers in efficiently assembling air filter pieces is needed, thereby reducing the labor intensity of workers and improving the installation efficiency of air filter pieces. Summary of the Utility Model

[0003] The purpose of the utility model is to overcome the deficiencies of the prior art and provide an air filter piece assembly device for injection-molded parts, which can not only reduce the labor intensity of workers, but also improve the installation efficiency of air filter pieces for injection-molded products.

[0004] The problems of the utility model are solved by the following technical solutions:

[0005] An air filter piece assembly device for injection-molded parts includes a long operation table, a transverse movement part, a clamping part, an assembly part and a hot melting part; the transverse movement part is arranged on the long operation table; the clamping part is arranged on the transverse movement part; the assembly part and the hot melting part are arranged across the upper part of the long operation table in sequence; the transverse movement part includes a hollow strip-shaped cylinder, a first servo motor, a first lead screw and a first lead screw nut; the hollow strip-shaped cylinder is arranged on the upper end surface of the long operation table along the length direction of the long operation table; the first servo motor is arranged at one end of the inner wall of the hollow strip-shaped cylinder, the first lead screw is connected with the output shaft of the first servo motor, and the other end of the first lead screw is axially connected with one end of the inner wall of the hollow strip-shaped cylinder; the first lead screw nut is arranged on the first lead screw and is located inside the hollow strip-shaped cylinder; the signal input end of the first servo motor is connected with the signal output end of the CPU.

[0006] The above-mentioned air filter sheet assembly device for injection molded parts, the clamping part includes an operation board, a positioning mechanism and a first infrared rangefinder; a strip-shaped hole is arranged along the length direction of the top surface of the hollow strip-shaped cylinder, and a connecting block is arranged on the first lead screw nut, and the connecting block extends out from the strip-shaped hole of the hollow strip-shaped cylinder; the operation board is arranged on the top surface of the hollow strip-shaped cylinder, and the bottom end surface thereof is connected to the connecting block on the first lead screw nut; the number of the positioning mechanisms is two, and they are symmetrically arranged on both sides of the upper end surface of the operation board along the length direction of the operation board; the length direction line of the operation board is perpendicular to the length direction line of the long operation table; a first vertical board is arranged at one end of the upper surface of the hollow strip-shaped cylinder, and a first infrared rangefinder is arranged on the end surface of the operation board close to the first vertical board, and the first infrared rangefinder points to the first vertical board; the infrared emission end of the first infrared rangefinder points to the first vertical board; the signal output end of the first infrared rangefinder is connected to the signal input end of the CPU.

[0007] The above-mentioned air filter sheet assembly device for injection molded parts, a middle board is arranged at the center of the upper end surface of the operation board, and the length direction line of the middle board is perpendicular to the length direction line of the operation board, and the two positioning mechanisms are respectively located on both sides of the middle board; the positioning mechanism includes a first positioning member and a second positioning member; the first positioning member is arranged at one end of the upper end surface of the operation board in the length direction; the number of the second positioning members is two, and they are symmetrically arranged at both ends of the upper end surface of the operation board in the width direction; the first positioning member includes a first electric cylinder and a first positioning plate; the first electric cylinder is arranged at one end of the upper end surface of the operation board in the length direction, and its piston rod points to the middle board, and a first positioning plate is arranged at the end of the piston rod of the first electric cylinder; the second positioning member includes a second electric cylinder and a second positioning plate; the two second electric cylinders are symmetrically arranged at both ends of the upper end surface of the operation board in the width direction, and second positioning plates are arranged at the ends of their piston rods; the signal input ends of the first electric cylinder and the second electric cylinder are both connected to the signal output end of the CPU.

[0008] The above-mentioned air filter sheet assembly device for injection molded parts, the assembly part includes a vibrating disk, a transverse movement mechanism, a vertical movement mechanism and an adsorption mechanism; the vibrating disk is arranged on the ground on one side of the long operation table; the transverse movement mechanism is arranged directly above the long operation table and is located on one side of the vibrating disk; the vertical movement mechanism is arranged on the transverse movement mechanism; the adsorption mechanism is arranged on the vertical movement mechanism.

[0009] The above-mentioned air filter sheet assembly device for injection molded parts, the transverse movement mechanism includes a first fixed long plate, a slider, a second servo motor, a second lead screw, a second lead screw nut and a second infrared distance measuring instrument; both ends of the first fixed long plate are arranged on the ground through brackets, and the first fixed long plate is located directly above the long operating table, and the length direction line of the first fixed long plate is perpendicular to the length direction line of the long operating table; a strip-shaped hole is arranged on the first fixed long plate along its length direction, and the slider is slidably arranged in the strip-shaped hole of the first fixed long plate; the second servo motor is arranged at one end of the upper end surface of the first fixed long plate, the second vertical plate is arranged at the other end of the first fixed long plate, one end of the second lead screw is connected to the output shaft of the second servo motor, and the other end of the second lead screw is axially connected to the second vertical plate; the second lead screw nut is arranged on the second lead screw; the second lead screw nut is connected to the slider; the second infrared distance measuring instrument is arranged on the second lead screw nut, and its infrared emission end points to the second vertical plate; the signal input end of the second servo motor is connected to the signal output end of the CPU; the signal output end of the second infrared distance measuring instrument is connected to the signal input end of the CPU.

[0010] The above-mentioned air filter sheet assembly device for injection molded parts, the vertical movement mechanism includes a horizontal support plate, a vertical support plate, a third servo motor, a third lead screw, a third lead screw nut, a third infrared distance measuring instrument and a guide rod; the horizontal support plate is arranged on the end surface of the slider away from the second lead screw nut; the vertical support plate is arranged on the upper end surface of the horizontal support plate; the third servo motor is arranged on the top end surface of the side wall of the vertical support plate, and one end of its output shaft is connected to one end of the third lead screw, and the other end of the third lead screw is axially connected to the horizontal support plate; the third lead screw nut is arranged on the third lead screw; the third infrared distance measuring instrument is arranged on the side wall of the third lead screw nut, and its infrared emission end points to the top end surface of the first fixed long plate; a vertical through guide hole is arranged on the slider, and the guide rod is inserted into the guide hole of the slider; the top end of the guide rod is connected to the third lead screw nut; the signal input end of the third servo motor is connected to the signal output end of the CPU; the signal output end of the third infrared distance measuring instrument is connected to the signal input end of the CPU.

[0011] The above-mentioned air filter sheet assembly device for injection molded parts, the hot melt part includes a second fixed long plate, a guide post, a third electric cylinder, a lifting plate and a hot melt welding head; both ends of the second fixed long plate are arranged on the ground through brackets; the third electric cylinder housing is arranged at the middle position of the second fixed long plate, and the end of its piston rod passes through the second fixed long plate, and the end of the piston rod is connected to the middle position of the upper end surface of the lifting plate; a vertical guide hole is arranged on the second fixed long plate, and the guide post passes through the guide hole of the second fixed long plate, and the bottom end of the guide post is connected to the upper end surface of the lifting plate; the number of the hot melt welding heads is two, and they are symmetrically arranged at both ends of the lower end surface of the lifting plate; the signal input end of the third electric cylinder is connected to the signal output end of the CPU.

[0012] The above-mentioned air filter sheet assembly device for injection molded parts, the adsorption mechanism includes a vacuum suction pipe and a vacuum generator; the vacuum suction pipe is arranged at the bottom end of the guide rod; the top end of the vacuum suction pipe is connected to the vacuum generator; the signal input end of the vacuum generator is connected to the signal output end of the CPU.

[0013] The utility model drives the clamping part to pass through the assembly part and the hot melting part in sequence through the transverse movement part; synchronously drives the injection molded product on the clamping part to move synchronously; the clamping part can position the injection molded product, so as to ensure that the assembly part and the hot melting part can accurately operate on the injection molded product; the assembly part can automatically install the air filter sheet on the injection molded product; the hot melting part makes the air filter sheet hot melt and weld on the injection molded product. Description of the Drawings

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0015] The list of each label in the figure is as follows: 1. Long operation table, 2. Hollow strip-shaped cylinder, 3. Operation board, 4. First infrared rangefinder, 5. Intermediate board, 6. First electric cylinder, 7. First positioning board, 8. Vibration disk, 9. First fixed long board, 10. Slide block, 11. Second servo motor, 12. Second lead screw nut, 13. Second infrared rangefinder, 14. Vertical support board, 15. Third servo motor, 16. Third lead screw nut, 17. Guide rod, 18. Second fixed long board, 19. Guide post, 20. Third electric cylinder, 21. Lifting board, 22. Hot melt welding head, 23. Vacuum suction pipe. Detailed Embodiment

[0016] Refer to Figure 1 , the utility model includes a long operation table 1, a transverse movement part, a clamping part, an assembly part and a hot melting part; the transverse movement part is arranged on the long operation table 1; the transverse movement part is used to drive the clamping part and the injection molded product on the clamping part to pass through the assembly part and the hot melting part in sequence; the clamping part is arranged on the transverse movement part; the clamping part is used to standardize the position of the injection molded product, so as to ensure that the assembly part and the hot melting part can smoothly operate on the injection molded product; the assembly part and the hot melting part are arranged across the upper part of the long operation table 1 in sequence.

[0017] The transverse movement part includes a hollow strip-shaped cylinder 2, a first servo motor, a first lead screw, and a first lead screw nut; the hollow strip-shaped cylinder 2 is arranged on the upper end surface of the long operating table 1 along the length direction of the long operating table 1; the first servo motor is arranged at one end of the inner wall of the hollow strip-shaped cylinder 2, the first lead screw is connected to the output shaft of the first servo motor, and the other end of the first lead screw is axially connected to one end of the inner wall of the hollow strip-shaped cylinder 2; the first lead screw nut is arranged on the first lead screw, and the first lead screw nut is located inside the hollow strip-shaped cylinder 2; the first servo motor can drive the first lead screw to rotate, and then drive the first lead screw nut to move. Since the first lead screw nut is connected to the operating plate, the first lead screw nut drives the operating plate to slide synchronously, and then drives the injection molded products on the operating plate to move synchronously; the signal input end of the first servo motor is connected to the signal output end of the CPU.

[0018] The clamping part includes an operating plate 3, a positioning mechanism, and a first infrared distance measuring instrument 4; a strip-shaped hole is arranged on the top end surface of the hollow strip-shaped cylinder 2 along its length direction, and a connecting block is arranged on the first lead screw nut, and the connecting block extends out from the strip-shaped hole of the hollow strip-shaped cylinder 2; the operating plate 3 is arranged on the top end surface of the hollow strip-shaped cylinder 2, and its bottom end surface is connected to the connecting block on the first lead screw nut; the operating plate 3 moves under the drive of the first lead screw nut.

[0019] The number of the positioning mechanisms is two, and they are symmetrically arranged on both sides of the upper end surface of the operating plate 3 along the length direction of the operating plate 3; the two injection molded products corresponding to the two positioning mechanisms operate on the two injection molded products simultaneously, improving the processing efficiency; the length direction line of the operating plate 3 is perpendicular to the length direction line of the long operating table 1; a first vertical plate is arranged at one end of the upper end surface of the hollow strip-shaped cylinder 2, a first infrared distance measuring instrument 4 is arranged on the end surface of the operating plate 3 close to the first vertical plate, and the first infrared distance measuring instrument 4 points to the first vertical plate; the first infrared distance measuring instrument can accurately and real-time monitor the position of the operating plate, and then know the accurate position of the injection molded product. The installation position of the air filter on the injection molded product can also be accurately monitored, and then cooperate with the action of the first servo motor to move the injection molded product to a specified point for the installation and hot melt welding of the air filter; the infrared emitting end of the first infrared distance measuring instrument 4 points to the first vertical plate; the signal output end of the first infrared distance measuring instrument 4 is connected to the signal input end of the CPU.

[0020] A middle plate 5 is arranged at the center of the upper end face of the operation plate 3, and the length direction line of the middle plate 5 is perpendicular to the length direction line of the operation plate 3. The two positioning mechanisms are respectively located on both sides of the middle plate 5; the positioning mechanisms on both sides respectively perform positioning processing on different injection products on both sides; the positioning mechanism includes a first positioning member and a second positioning member; the first positioning member is arranged at one end of the upper end face of the operation plate 3 in the length direction; the number of the second positioning members is two, and they are symmetrically arranged at both ends of the upper end face of the operation plate 3 in the width direction; the first positioning member includes a first electric cylinder 6 and a first positioning plate 7; the first electric cylinder 6 is arranged at one end of the upper end face of the operation plate 3 in the length direction, and its piston rod points to the middle plate 5. The end of the piston rod of the first electric cylinder 6 is provided with a first positioning plate 7; the second positioning member includes a second electric cylinder and a second positioning plate; the two second electric cylinders are symmetrically arranged at both ends of the upper end face of the operation plate 3 in the width direction, and the ends of their piston rods are both provided with second positioning plates; the signal input ends of the first electric cylinder 6 and the second electric cylinder are both connected to the signal output end of the CPU; for an injection product, when the first electric cylinder and the second electric cylinder are started simultaneously, the two second positioning plates, one first positioning plate and the middle plate cooperate to perform positioning processing on the injection product.

[0021] The assembly part includes a vibrating bowl 8, a transverse movement mechanism, a vertical movement mechanism and a suction mechanism; the vibrating bowl 8 is arranged on the ground on one side of the long operation table 1; the transverse movement mechanism is arranged directly above the long operation table 1 and is located on one side of the vibrating bowl 8; the vertical movement mechanism is arranged on the transverse movement mechanism; the suction mechanism is arranged on the vertical movement mechanism; the vibrating bowl is a mature product, which can standardize the front and back sides of the air filter element and is a common device for front and back standardization;

[0022] The transverse movement mechanism includes a first fixed long plate 9, a slider 10, a second servo motor 11, a second lead screw, a second lead screw nut 12, and a second infrared distance measuring instrument 13. The two ends of the first fixed long plate 9 are arranged on the ground through brackets, and the first fixed long plate 9 is located directly above the long operation table 1. The length direction line of the first fixed long plate 9 is perpendicular to the length direction line of the long operation table 1. A strip-shaped hole is arranged along the length direction of the first fixed long plate 9, and the slider 10 is slidably arranged in the strip-shaped hole of the first fixed long plate 9. The slider 10 moves along the strip-shaped hole of the first fixed long plate, thereby driving the adsorption mechanism to move horizontally synchronously. The second servo motor 11 is arranged at one end of the upper end surface of the first fixed long plate 9, and a second vertical plate is arranged at the other end of the first fixed long plate 9. One end of the second lead screw is connected to the output shaft of the second servo motor 11, and the other end of the second lead screw is pivotally connected to the second vertical plate. The second lead screw nut 12 is arranged on the second lead screw. The second servo motor can drive the second lead screw to rotate, thereby driving the second lead screw nut to move along the axis direction of the second lead screw. The second lead screw nut drives the slider to slide horizontally synchronously. The second lead screw nut 12 is connected to the slider 10. The second infrared distance measuring instrument 13 is arranged on the second lead screw nut 12, and its infrared emission end points to the second vertical plate. The second infrared distance measuring instrument monitors the real-time position of the slider in real time, thereby knowing the real-time position of the vacuum suction pipe, ensuring that the vacuum suction pipe can accurately move between the vibrating disk and the injection molded product; ensuring that the vacuum suction pipe can accurately move between directly above the end of the feeding chute of the vibrating disk and the air filter sheet installation position of the injection molded product. The signal input end of the second servo motor 11 is connected to the signal output end of the CPU. The signal output end of the second infrared distance measuring instrument 13 is connected to the signal input end of the CPU.

[0023] The vertical movement mechanism includes a horizontal support plate, a vertical support plate 14, a third servo motor 15, a third lead screw, a third lead screw nut 16, a third infrared distance measuring instrument, and a guide rod 17; the horizontal support plate is arranged on the end face of the slider 10 away from the second lead screw nut 12; the vertical support plate 14 is arranged on the upper end face of the horizontal support plate; the third servo motor 15 is arranged on the top end face of the side wall of the vertical support plate 14, and one end of the output shaft thereof is connected to one end of the third lead screw, and the other end of the third lead screw is pivotally connected to the horizontal support plate; the third servo motor can drive the third lead screw to rotate, thereby driving the third lead screw nut to move vertically, the third lead screw nut drives the guide rod to move vertically, and finally drives the vacuum suction pipe to lift and lower synchronously; the third lead screw nut 16 is arranged on the third lead screw; the third infrared distance measuring instrument is arranged on the side wall of the third lead screw nut 16, and its infrared emission end points to the top end face of the first fixed long plate 9; the third infrared distance measuring instrument can monitor the height of the bottom end of the vacuum suction pipe in real time, thereby ensuring that the bottom end of the vacuum suction pipe can contact the air filter sheet at the end of the vibrating disk feeding chute, and accurately place the air filter sheet on the air filter sheet installation position of the injection molded product; a vertically penetrating guide hole is arranged on the slider 10, and the guide rod 17 is inserted into the guide hole of the slider 10; the top end of the guide rod 17 is connected to the third lead screw nut 16; the third lead screw nut drives the guide rod and the vacuum suction pipe below it to lift and lower vertically; the signal input end of the third servo motor 15 is connected to the signal output end of the CPU; the signal output end of the third infrared distance measuring instrument is connected to the signal input end of the CPU.

[0024] The hot melting part includes a second fixed long plate 18, a guide post 19, a third electric cylinder 20, a lifting plate 21, and a hot melting welding head 22; both ends of the second fixed long plate 18 are arranged on the ground through brackets; the housing of the third electric cylinder 20 is arranged at the central position of the second fixed long plate 18, and the end of its piston rod penetrates through the second fixed long plate 18, and the end of the piston rod is connected to the central position of the upper end face of the lifting plate 21; a vertically oriented guide hole is arranged on the second fixed long plate 18, and the guide post 19 penetrates through the guide hole of the second fixed long plate 18, and the bottom end of the guide post 19 is connected to the upper end face of the lifting plate 21; the third electric cylinder can drive the lifting plate to lift and lower vertically, and the guide post provides guiding for its lifting; the number of the hot melting welding heads 22 is two, and they are symmetrically arranged at both ends of the lower end face of the lifting plate 21; the signal input end of the third electric cylinder 20 is connected to the signal output end of the CPU.

[0025] The adsorption mechanism includes a vacuum suction pipe 23 and a vacuum generator; the vacuum suction pipe 23 is arranged at the bottom end of the guide rod 17; the top end of the vacuum suction pipe 23 is connected to the vacuum generator; the vacuum generator cooperates with the vacuum suction pipe to adsorb the air filter sheet, and then transfers it; the signal input end of the vacuum generator is connected to the signal output end of the CPU.

[0026] In this utility model, the model of the CPU module is 87C196KC.

[0027] Principle of use: When the operation panel is in the initial position, two injection-molded products are respectively placed on both sides of the middle plate; the first positioning member and the second positioning member act to position the injection-molded products; the first servo motor acts, and in cooperation with the first infrared rangefinder, the injection-molded products stay directly below the first fixed long plate; then the second servo motor acts to drive the vacuum suction pipe to traverse horizontally to directly above the end of the discharge chute of the vibrating disk, and then the third servo motor is started to drive the vacuum suction pipe to move downward to contact the air filter element, and the vacuum generator is started so that the vacuum suction pipe adsorbs the air filter element, then the vacuum suction pipe moves upward and traverses horizontally to directly above the installation position of the injection-molded product; then the vacuum suction pipe moves downward until its bottom touches the air filter element installation position of the injection-molded product, and then the vacuum generator is turned off, at this time the air filter element falls onto the installation position of the injection-molded product; at this time, the placement of the air filter element is completed, and each part of the assembly part returns to the initial position; then the first servo motor continues to act to move the injection-molded product to directly below the hot melt welding head; then the third electric cylinder acts to drive the hot melt welding head to move downward until it touches the air filter element, and then the melting and welding process is carried out to melt and weld the air filter element to the installation position of the injection-molded product; then the third electric cylinder resets; the first servo motor continues to act to drive the operation panel forward to the end, and the operator takes away the processed injection-molded product, and the installation operation of the air filter element of this injection-molded product is completed; at this time, one round of the process is completed, and each part returns to the initial state. After the operation panel moves to the initial position, the injection-molded product is placed again, and so on.

Claims

1. An air filter sheet assembly device for injection molded parts, characterized in that: It includes a long operating table (1), a transverse movement part, a clamping part, an assembly part, and a hot melting part; the transverse movement part is arranged on the long operating table (1); the clamping part is arranged on the transverse movement part; the assembly part and the hot melting part are arranged across the upper part of the long operating table (1) in sequence; the transverse movement part includes a hollow strip-shaped cylinder (2), a first servo motor, a first lead screw, and a first lead screw nut; the hollow strip-shaped cylinder (2) is arranged on the upper end surface of the long operating table (1) along the length direction of the long operating table (1); the first servo motor is arranged at one end of the inner wall of the hollow strip-shaped cylinder (2), the first lead screw is connected to the output shaft of the first servo motor, and the other end of the first lead screw is axially connected to one end of the inner wall of the hollow strip-shaped cylinder (2); the first lead screw nut is arranged on the first lead screw, and the first lead screw nut is located inside the hollow strip-shaped cylinder (2); the signal input end of the first servo motor is connected to the signal output end of the CPU.

2. The air filter sheet assembling device for injection molded parts according to claim 1, characterized in that: The clamping part includes an operation board (3), a positioning mechanism, and a first infrared rangefinder (4); a strip-shaped hole is arranged on the top end surface of the hollow strip-shaped cylinder (2) along its length direction, and a connecting block is arranged on the first lead screw nut, and the connecting block extends out from the strip-shaped hole of the hollow strip-shaped cylinder (2); the operation board (3) is arranged on the top end surface of the hollow strip-shaped cylinder (2), and its bottom end surface is connected to the connecting block on the first lead screw nut; the number of the positioning mechanisms is two, and they are symmetrically arranged on both sides of the upper end surface of the operation board (3) along the length direction of the operation board (3); the length direction line of the operation board (3) is perpendicular to the length direction line of the long operating table (1); a first vertical plate is arranged at one end of the upper end surface of the hollow strip-shaped cylinder (2), a first infrared rangefinder (4) is arranged on the end surface of the operation board (3) close to the first vertical plate, and the first infrared rangefinder (4) points to the first vertical plate; the infrared emission end of the first infrared rangefinder (4) points to the first vertical plate; the signal output end of the first infrared rangefinder (4) is connected to the signal input end of the CPU.

3. The air filter sheet assembly device for injection molded parts according to claim 2, characterized in that: A middle board (5) is arranged at the center of the upper end surface of the operation board (3), and the length direction line of the middle board (5) is perpendicular to the length direction line of the operation board (3), and the two positioning mechanisms are respectively located on both sides of the middle board (5); the positioning mechanism includes a first positioning member and a second positioning member; the first positioning member is arranged at one end of the upper end surface of the operation board (3) in the length direction; the number of the second positioning members is two, and they are symmetrically arranged at both ends of the upper end surface of the operation board (3) in the width direction; the first positioning member includes a first electric cylinder (6) and a first positioning plate (7); the first electric cylinder (6) is arranged at one end of the upper end surface of the operation board (3) in the length direction, and its piston rod points to the middle board (5), and a first positioning plate (7) is arranged at the end of the piston rod of the first electric cylinder (6); the second positioning member includes a second electric cylinder and a second positioning plate; the two second electric cylinders are symmetrically arranged at both ends of the upper end surface of the operation board (3) in the width direction, and second positioning plates are arranged at the ends of their piston rods; the signal input ends of the first electric cylinder (6) and the second electric cylinder are both connected to the signal output end of the CPU.

4. The air filter sheet assembly device for injection molded parts according to claim 3, characterized in that: The assembly part includes a vibrating bowl (8), a transverse movement mechanism, a vertical movement mechanism, and an adsorption mechanism; the vibrating bowl (8) is arranged on the ground on one side of the long operation table (1); the transverse movement mechanism is arranged directly above the long operation table (1) and is located on one side of the vibrating bowl (8); the vertical movement mechanism is arranged on the transverse movement mechanism; the adsorption mechanism is arranged on the vertical movement mechanism.

5. The air filter sheet assembly device for injection molded parts according to claim 4, characterized in that: The transverse movement mechanism includes a first fixed long plate (9), a slider (10), a second servo motor (11), a second lead screw, a second lead screw nut (12), and a second infrared distance measuring instrument (13); both ends of the first fixed long plate (9) are arranged on the ground through brackets, and the first fixed long plate (9) is located directly above the long operation table (1), and the length direction line of the first fixed long plate (9) is perpendicular to the length direction line of the long operation table (1); a strip-shaped hole is arranged along the length direction on the first fixed long plate (9), and the slider (10) is slidably arranged in the strip-shaped hole of the first fixed long plate (9); the second servo motor (11) is arranged at one end of the upper end surface of the first fixed long plate (9), a second vertical plate is arranged at the other end of the first fixed long plate (9), one end of the second lead screw is connected to the output shaft of the second servo motor (11), and the other end of the second lead screw is pivotally connected to the second vertical plate; the second lead screw nut (12) is arranged on the second lead screw; the second lead screw nut (12) is connected to the slider (10); the second infrared distance measuring instrument (13) is arranged on the second lead screw nut (12), and its infrared emission end points to the second vertical plate; the signal input end of the second servo motor (11) is connected to the signal output end of the CPU; the signal output end of the second infrared distance measuring instrument (13) is connected to the signal input end of the CPU.

6. The air filter sheet assembling device for injection molded parts according to claim 5, characterized in that: The vertical movement mechanism includes a horizontal support plate, a vertical support plate (14), a third servo motor (15), a third lead screw, a third lead screw nut (16), a third infrared distance measuring instrument, and a guide rod (17); the horizontal support plate is arranged on the end surface of the slider (10) away from the second lead screw nut (12); the vertical support plate (14) is arranged on the upper end surface of the horizontal support plate; the third servo motor (15) is arranged on the top end surface of the side wall of the vertical support plate (14), and one end of its output shaft is connected to one end of the third lead screw, and the other end of the third lead screw is pivotally connected to the horizontal support plate; the third lead screw nut (16) is arranged on the third lead screw; the third infrared distance measuring instrument is arranged on the side wall of the third lead screw nut (16), and its infrared emission end points to the top end surface of the first fixed long plate (9); a vertically penetrating guide hole is arranged on the slider (10), and the guide rod (17) is inserted into the guide hole of the slider (10); the top end of the guide rod (17) is connected to the third lead screw nut (16); the signal input end of the third servo motor (15) is connected to the signal output end of the CPU; the signal output end of the third infrared distance measuring instrument is connected to the signal input end of the CPU.

7. The air filter sheet assembling device for injection molded parts according to claim 6, characterized in that: The hot-melt part includes a second fixed long plate (18), a guide post (19), a third electric cylinder (20), a lifting plate (21) and a hot-melt welding head (22); both ends of the second fixed long plate (18) are arranged on the ground through brackets; the housing of the third electric cylinder (20) is arranged at the middle position of the second fixed long plate (18), and the end of its piston rod penetrates through the second fixed long plate (18), and the end of the piston rod is connected to the middle position of the upper end surface of the lifting plate (21); a vertically oriented guide hole is provided on the second fixed long plate (18), and the guide post (19) penetrates through the guide hole of the second fixed long plate (18), and the bottom end of the guide post (19) is connected to the upper end surface of the lifting plate (21); the number of the hot-melt welding heads (22) is two, and they are symmetrically arranged at both ends of the lower end surface of the lifting plate (21); the signal input end of the third electric cylinder (20) is connected to the signal output end of the CPU.

8. The air filter sheet assembling device for injection molded parts according to claim 7, wherein: The adsorption mechanism includes a vacuum suction pipe (23) and a vacuum generator; the vacuum suction pipe (23) is arranged at the bottom end of the guide rod (17); the top end of the vacuum suction pipe (23) is connected to the vacuum generator; the signal input end of the vacuum generator is connected to the signal output end of the CPU.

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