Automatic production equipment and production process of air filter

Abstract

The present invention belongs to the technical field of filter production, specifically, an automatic production equipment for air filters, including a first conveyor frame, the first conveyor frame is internally rotatably connected to a first conveyor belt, a plurality of partitions are fixedly connected between the first conveyor frames, the first conveyor belt is divided into a plurality of conveying areas along the axial direction by the partitions, the plurality of conveying areas are respectively provided with a coarse-effect filter, a medium-effect filter and a high-efficiency filter along the axial direction, a support frame is provided on one side of the first conveyor frame, a moving block is symmetrically slidably connected to the inside of the support frame, a moving plate is slidably connected between two of the moving blocks, a fixed frame is slidably connected to the lower surface of the moving plate, and a plurality of suction cups are slidably connected to the inside of the fixed frame. The positioning and placement of three filters can be completed at one time, eliminating the repeated process of operating each filter individually, and significantly improving production efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of filter screen production, in particular to an automatic production device and a production process for an air filter screen. Background Art

[0002] The air filter is an important component of the air purifier. Its main function is to filter and adsorb various particles and pollutants in the air, thereby improving the indoor air quality. At present, in order to produce air filters continuously and stably during the production process, automatic production equipment is generally used. Automatic production equipment can complete the production of a large number of products in a short time to meet market demand.

[0003] A patent application with publication number CN114522483B discloses a filter preparation device and method for a high-efficiency air purification device, including a first conveyor belt, a grooved wheel conveyor belt, a support plate and a workbench, as well as an automatic loading mechanism and an automatic conveying mechanism. The above patent can replace manual picking and avoid omissions and duplications during the filling process.

[0004] The above-mentioned prior art places the coarse-effect filter, the medium-effect filter and the high-efficiency filter in a single conveying area in sequence, and then drives the suction cup to repeat the operation three times to place the three filters in the frame respectively, and then presses down the filter in the frame to squeeze the frame and the three filters into one. Since each filter needs to be adsorbed and placed separately, and after placement, it needs to be pressed together, there are many steps, which increases the overall operation time of the device, thereby reducing production efficiency.

[0005] To this end, the present invention provides an automatic production device and a production process for an air filter. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve its technical problems is: the automatic production equipment and production process of an air filter described in the present invention include a first conveying frame, the first conveying frame is rotatably connected to a first conveyor belt inside, a plurality of partitions are fixedly connected between the first conveying frames, the first conveying belt is divided into a plurality of conveying areas along the axial direction by the partitions, and the plurality of conveying areas are respectively provided with a coarse-effect filter screen, a medium-effect filter screen and a high-efficiency filter screen along the axial direction; a support frame is provided on one side of the first conveying frame, a moving block is symmetrically slidably connected to the inside of the support frame, a moving plate is slidably connected between two of the moving blocks, a fixed frame is slidably connected to the lower surface of the moving plate, a plurality of suction cups are slidably connected to the inside of the fixed frame, and the suction cups are fixedly connected to the upper surface of the fixed frame; a second conveying frame is provided on one side of the support frame, a second conveying belt is rotatably connected to the inside of the second conveying frame, a plurality of positioning frames are fixedly connected to the surface of the second conveying frame, and frames are provided between adjacent positioning frames.

[0008] Preferably, the interior of the two moving blocks are both threadedly connected with a screw rod, and the two ends of the screw rod are rotatably connected at the two ends of the interior of the support frame respectively. A motor is symmetrically fixedly connected to one side of the support frame, and the output end of the motor is fixedly connected to one end of the screw rod. One side of the two moving blocks is both fixedly connected to a cylinder, and the movable end of the cylinder is fixedly connected to the upper surface of the moving plate.

[0009] Preferably, a negative pressure pump is fixedly connected to the upper surface of the support frame, the output end of the negative pressure pump is fixedly connected to a first connecting pipe, one end of the first connecting pipe is fixedly connected to a first air suction hood, and a plurality of solenoid valves are fixedly connected to the lower surface of the first air suction hood, and the plurality of solenoid valves are fixedly connected to the upper surface of the movable plate.

[0010] Preferably, a plurality of second connecting pipes are fixedly connected to the surface of each solenoid valve, one end of each second connecting pipe is fixedly connected to a second air suction hood, and the lower surface of the second air suction hood is fixed and communicated with one end of the suction cup.

[0011] Preferably, a moving rod is fixedly connected to the upper surface of the fixing frame, the moving rod is slidably connected to the lower surface of the moving plate, and a second spring is fixedly connected between the lower surface of the moving plate and the fixing frame.

[0012] Preferably, the lower surface of the second air suction hood is symmetrically fixedly connected with a first sealing tube, a second sealing tube is fixedly connected between the two first sealing tubes, the second sealing tube is communicated with one end of the first sealing tube, a piston rod is slidably connected inside the second sealing tube, one end of the piston rod is fixedly connected to the inner upper surface of the pressure plate, one end of the piston rod is fixedly connected to the pressure plate, and a fourth spring is fixedly connected between one end of the piston rod and the inner wall of the fixed frame.

[0013] Preferably, a receiving groove is provided inside the pressing plate, and the size of the receiving groove is larger than the diameter of the suction cup.

[0014] Preferably, a clamping block is slidably connected inside one end of the first sealing tube, a third spring is fixedly connected between one end of the clamping block and the inside of the first sealing tube, a clamping groove is provided on the surface of the piston rod, and the sizes of the clamping groove and the clamping block match.

[0015] An automatic production process for an air filter comprises the following steps:

[0016] S1: At the starting point of the production line, prepare various required filters, including coarse-effect filters, medium-effect filters and high-efficiency filters;

[0017] S2: Place a coarse filter in the frame at the transport position of the medium filter, place a coarse filter in the frame at the transport position of the high-efficiency filter, and then place a medium filter on top of the coarse filter;

[0018] S3: placing the prepared coarse-effect filter screen, medium-effect filter screen and high-efficiency filter screen in each separation area in a predetermined order and stacking method along the axial direction, and then transporting these stacked filter screens to the bottom of the three sets of fixed racks through the first conveyor belt to prepare for the next step of adsorption and placement operation;

[0019] S4: The three sets of fixing frames drive the suction cups to descend and respectively adsorb the coarse-effect filter, the medium-effect filter and the high-efficiency filter, and then place the coarse-effect filter, the medium-effect filter and the high-efficiency filter in the frames at their corresponding positions;

[0020] S5: After placement is completed, the pressure plates at the medium-efficiency filter and the high-efficiency filter are driven to descend. When the fixed frame drives the pressure plates to descend, the stacked filters in the frame can be pressed together;

[0021] S6: After the pressing is completed, the pressing plate and the fixing frame are reset to the initial position and wait for the next operation. At the same time, the second conveyor belt rotates intermittently to switch the frames that have completed the pressing to the next group of transportation areas in sequence. During this process, the frames that have completed the pressing can be taken out by workers or robotic arms;

[0022] S7: Perform quality inspection on the removed frames to ensure that the filter screens are correctly laminated, pressed tightly, and free of damage or defects. Qualified frames are packaged, labeled, and prepared for shipment or storage. Unqualified frames are reworked or scrapped.

[0023] Preferably, the mesh number of the coarse-effect filter is lower than that of the medium-effect filter, and the mesh number of the medium-effect filter is lower than that of the high-efficiency filter.

[0024] The beneficial effects of the present invention are as follows:

[0025] 1. The automatic production equipment and production process of an air filter described in the present invention respectively arranges a coarse-effect filter, a medium-effect filter and a high-efficiency filter in separate conveying areas, and then uses a suction cup to deliver the three filters, the coarse-effect filter, the medium-effect filter and the high-efficiency filter, to the frames at corresponding positions at one time, and then drives the frames to intermittently move inside the second conveying frame, so that the filters inside the frame can be stacked in sequence, and the positioning and placement of the three filters can be completed at one time, eliminating the repetitive process of operating each filter separately, significantly improving the production efficiency, and avoiding the problem of the prior art that each filter needs to be repeatedly adsorbed and placed separately.

[0026] 2. The automatic production equipment and production process of an air filter described in the present invention is provided with a pressure plate. After the high-efficiency filter enters the frame, the pressure plate will store the suction cup inside it, and can press down the high-efficiency filter, so that the high-efficiency filter, medium-efficiency filter, coarse-efficiency filter and frame are squeezed into one. After the medium-efficiency filter enters the frame, the pressure plate presses down the medium-efficiency filter, so that the medium-efficiency filter, coarse-efficiency filter and frame are squeezed into one. This structure can realize the operation of pressing down the filter while conveying the filter, which simplifies the operation process, greatly reduces the production time, and improves the overall production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The present invention will be further described below in conjunction with the accompanying drawings.

[0028] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0029] Figure 2 It is a structural schematic diagram of the first conveying frame of the present invention;

[0030] Figure 3 is a schematic structural diagram of a second conveyor frame of the present invention;

[0031] Figure 4 It is a structural schematic diagram of the support frame of the present invention;

[0032] Figure 5 It is a structural schematic diagram of the movable plate and the negative pressure pump of the present invention;

[0033] Figure 6 It is a structural schematic diagram of the fixing frame and the solenoid valve of the present invention;

[0034] Figure 7 It is a structural schematic diagram of the fixing frame of the present invention in a negative pressure pump working state;

[0035] Figure 8 is a structural cross-sectional view of the fixing frame of the present invention;

[0036] Fig. 9 is a structural cross-sectional view of the first sealing tube and the second sealing tube of the present invention;

[0037] Fig.10 is a structural sectional view of the piston rod of the present invention;

[0038] In the figure: 1, first conveyor frame; 11, partition; 12, coarse-effect filter screen; 13, medium-effect filter screen; 14, high-efficiency filter screen; 15, first conveyor belt; 2, second conveyor frame; 21, second conveyor belt; 22, positioning frame; 23, frame; 3, support frame; 31, motor; 32, screw rod; 33, moving block; 34, cylinder; 35, moving plate; 36, first suction hood; 37, solenoid valve; 38, first connecting pipe; 39, second spring; 310, moving rod; 4, negative pressure pump; 41, second connecting pipe; 5, fixing frame; 51, second suction hood; 52, first sealing pipe; 521, block; 522, third spring; 53, second sealing pipe; 54, suction cup; 55, piston rod; 551, slot; 56, fourth spring; 57, pressing plate. DETAILED DESCRIPTION

[0039] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0040] Embodiment 1: Figures 1 to 3 and Fig. 9 As shown, an automatic production equipment for an air filter described in an embodiment of the present invention includes a first conveying frame 1, wherein the first conveying frame 1 is internally rotatably connected to a first conveying belt 15, a plurality of partitions 11 are fixedly connected between the first conveying frames 1, the first conveying belt 15 is divided into a plurality of conveying areas along the axial direction by the partitions 11, and the plurality of conveying areas are respectively provided with a coarse-effect filter 12, a medium-effect filter 13 and a high-efficiency filter 14 along the axial direction, a support frame 3 is provided on one side of the first conveying frame 1, a moving block 33 is symmetrically slidably connected to the inside of the support frame 3, a moving plate 35 is slidably connected between two of the moving blocks 33, a fixed frame 5 is slidably connected to the lower surface of the moving plate 35, a plurality of suction cups 54 are slidably connected to the inside of the fixed frame 5, and the suction cups 54 are fixedly connected to the inner upper surface of the fixed frame 5, a second conveying frame 2 is provided on one side of the support frame 3, a second conveying belt 21 is internally rotatably connected to the inside of the second conveying frame 2, a plurality of positioning frames 22 are fixedly connected to the surface of the second conveying frame 2, and a frame 23 is provided between adjacent positioning frames 22.

[0041] Specifically, the prior art is to place the coarse filter 12, the medium filter 13 and the high efficiency filter 14 in a single conveying area in sequence, and then drive the suction cup 54 to repeat the operation three times to place the three filters in the frame 23 respectively, and then press the filter in the frame 23 downward, so that the frame 23 and the three filters are squeezed into one;

[0042] When the above-mentioned prior art is used, since each filter screen needs to be adsorbed and placed separately, the operation time of the whole device is increased, thereby reducing the production efficiency;

[0043] In order to solve the above problems, the working principle of this embodiment is as follows: before using the device, the coarse filter 12, the medium filter 13 and the high efficiency filter 14 are placed in sequence in the conveying area formed between the first conveyor belt 15 and the partition 11, and the coarse filter 12, the medium filter 13 and the high efficiency filter 14 are placed in sequence from left to right, and then a coarse filter 12 is placed in the frame 23 at the corresponding position of the medium filter 13, and a coarse filter 12 and a medium filter 13 are placed in the frame 23 at the corresponding position of the high efficiency filter 14, and the coarse filter 12 is at the bottom layer, and then the device can be turned on for work;

[0044] The first conveyor belt 15 is driven to rotate intermittently, and the first conveyor belt 15 drives the coarse filter 12, the medium filter 13 and the high-efficiency filter 14 to move synchronously to the bottom of the fixed frame 5 at one time, and the movable plate 35 is driven to descend, and the movable plate 35 drives the three groups of fixed frames 5 to descend, and the three groups of fixed frames 5 respectively drive the suction cups 54 inside thereof to move downward, so that the three groups of suction cups 54 can contact the upper surfaces of the coarse filter 12, the medium filter 13 and the high-efficiency filter 14 respectively. At this time, the suction cups 54 are driven to work, and the suction cups 54 can adsorb the coarse filter 12, the medium filter 13 and the high-efficiency filter 14, and then the movable block 33 is driven to move, and the movable block 33 drives the movable plate 35 to move to the top of the frame 23, and then the movable plate 35 is driven to descend, and the movable plate 35 drives the three groups of fixed frames 5 to descend synchronously;

[0045] During the descent process, since the frame 23 corresponding to the high-efficiency filter 14 has a coarse-effect filter 12 and a medium-effect filter 13 inside, the high-efficiency filter 14 will contact the upper surface of the medium-effect filter 13 inside its corresponding frame 23 in advance during descent. At this time, the suction cup 54 contacts the upper surface of the high-efficiency filter 14, and then the moving plate 35 continues to descend, the medium-effect filter 13 descends and contacts the upper surface of the coarse-effect filter 12 inside its corresponding frame 23, and the suction cup 54 contacts the upper surface of the medium-effect filter 13. Finally, the moving plate 35 moves downward. The movable plate 35 continues to descend, and then the coarse-effect filter 12 is placed in the frame 23 at its corresponding position. During the descending process of the movable plate 35, the suction cup 54 located inside the middle fixed frame 5 performs a pressing operation on the medium-effect filter 13, so that the frame 23, the coarse-effect filter 12 and the medium-effect filter 13 are squeezed into one body, and the suction cup 54 located inside the rightmost fixed frame 5 performs a pressing operation on the high-efficiency filter 14, so that the frame 23, the coarse-effect filter 12, the medium-effect filter 13 and the high-efficiency filter 14 are squeezed into one body;

[0046] After the pressing is completed, the second conveyor belt 21 of the second conveyor frame 2 is driven to rotate intermittently, and the second conveyor belt 21 drives all the frames 23 to move, so that a new frame 23 rotates to the position corresponding to the leftmost fixed frame 5, and the frame 23 equipped with the coarse filter 12 inside moves to the position corresponding to the middle fixed frame 5, and the frame 23 equipped with the coarse filter 12 and the medium filter 13 moves to the position corresponding to the rightmost fixed frame 5, and then the finished product that the filter screen and the frame 23 are squeezed into one can be taken down;

[0047] This embodiment allows the filter screens inside the frame 23 to be stacked in sequence, and can complete the positioning and placement of three filter screens at one time, eliminating the need for repeated operations on each filter screen individually, significantly improving production efficiency, and also allows the filter screen to be pressed down while being transported, simplifying the operating process, greatly reducing production time, and improving overall production efficiency.

[0048] like Figure 4 As shown, the interior of the two moving blocks 33 is threadedly connected with a screw rod 32, and the two ends of the screw rod 32 are rotatably connected at the two ends of the interior of the support frame 3 respectively. A motor 31 is symmetrically fixedly connected to one side of the support frame 3, and the output end of the motor 31 is fixedly connected to one end of the screw rod 32. One side of the two moving blocks 33 is fixedly connected with a cylinder 34, and the movable end of the cylinder 34 is fixedly connected to the upper surface of the moving plate 35.

[0049] Specifically, turn on the motor 31, the motor 31 drives the screw rod 32 to rotate, the screw rod 32 drives the moving block 33 to slide inside the support frame 3, the moving block 33 can drive the cylinder 34 to move to a suitable position to perform loading and unloading operations, turn on the cylinder 34, the cylinder 34 can drive the moving plate 35 to rise and fall, the moving plate 35 drives the fixed frame 5 to descend, and the fixed frame 5 can adsorb and place the coarse-effect filter 12, the medium-effect filter 13 and the high-efficiency filter 14 through the suction cup 54.

[0050] like Figure 5 As shown, the upper surface of the support frame 3 is fixedly connected with a negative pressure pump 4, the output end of the negative pressure pump 4 is fixedly connected with a first connecting pipe 41, one end of the first connecting pipe 41 is fixedly connected with a first suction hood 36, the lower surface of the first suction hood 36 is fixedly connected with a plurality of solenoid valves 37, and the plurality of solenoid valves 37 are fixedly connected to the upper surface of the movable plate 35, the surface of each of the solenoid valves 37 is fixedly connected with a plurality of second connecting pipes 38, one end of the second connecting pipes 38 is fixedly connected with a second suction hood 51, and the lower surface of the second suction hood 51 is fixed and communicated with one end of the suction cup 54.

[0051] Specifically, turn on the negative pressure pump 4, the negative pressure pump 4 generates a negative pressure airflow, the negative pressure airflow enters the interior of the first suction hood 36 through the first connecting pipe 41, and then the first suction hood 36 sends the wind into the interior of the solenoid valve 37, and then enters the second suction hood 51 through the second connecting pipe 38 on the solenoid valve 37, and finally enters the interior of the suction cup 54 through the second suction hood 51, so that a negative pressure airflow is generated inside the suction cup 54, and the three filters can be adsorbed and transported.

[0052] like Figure 6 As shown, a moving rod 310 is fixedly connected to the upper surface of the fixing frame 5 , the moving rod 310 is slidably connected to the lower surface of the moving plate 35 , and a second spring 39 is fixedly connected between the lower surface of the moving plate 35 and the fixing frame 5 .

[0053] Specifically, after the lower surface of the pressure plate 57 contacts the upper surface of the filter, as the movable plate 35 descends, the pressure plate 57 will drive the movable rod 310 above the fixed frame 5 to slide within a limited position on the lower surface of the movable plate 35. The fixed frame 5 will squeeze the second spring 39 at this time. Then, after the movable plate 35 is reset, the second spring 39 will drive the fixed frame 5 to reset and remain in the initial position.

[0054] Embodiment 2: Figures 6 to 10As shown, compared with Example 1, another embodiment of the present invention is: the lower surface of the second air suction hood 51 is symmetrically fixedly connected with a first sealing tube 52, a second sealing tube 53 is fixedly connected between the two first sealing tubes 52, the second sealing tube 53 is communicated with one end of the first sealing tube 52, the interior of the second sealing tube 53 is slidably connected with a piston rod 55, one end of the piston rod 55 is fixedly connected to the inner upper surface of the pressure plate 57, and a fourth spring 56 is fixedly connected between one end of the piston rod 55 and the inner wall of the fixed frame 5.

[0055] like Fig. 9 and Fig.10 As shown, a clamping block 521 is slidably connected inside one end of the first sealing tube 52, a third spring 522 is fixedly connected between one end of the clamping block 521 and the inside of the first sealing tube 52, and a clamping groove 551 is provided on the surface of the piston rod 55, and the sizes of the clamping groove 551 and the clamping block 521 match.

[0056] Specifically, when the movable plate 35 drives the fixing frame 5 to descend, and the fixing frame 5 drives the suction cup 54 inside it to squeeze the filter screen, when the squeezing force exceeds the maximum pressure that the material and structure of the suction cup 54 can withstand, the suction cup 54 may undergo plastic deformation, that is, the shape undergoes a permanent change and cannot be restored to the original shape, thereby causing the suction cup 54 to be unable to perform subsequent transportation work normally;

[0057] The working principle of this embodiment to avoid the above-mentioned problems is as follows: after the negative pressure airflow enters the interior of the first suction hood 36, it is transmitted to the second connecting pipe 38 through the solenoid valve 37, and the negative pressure airflow enters the interior of the second suction hood 51 through the second connecting pipe 38, and the negative pressure airflow enters the first sealing tube 52 through the second suction hood 51, and the negative pressure airflow drives the block 521 to move toward the inside of the first sealing tube 52 and stretch the third spring 522, so that the block 521 is disengaged from the internal groove 551 of the piston rod 55, so that the piston rod 55 is released from the limit, and at the same time, the negative pressure airflow enters the second sealing tube 53 through the first sealing tube 52, so that the piston rod 55 slides toward the inside of the second sealing tube 53 and squeezes the fourth spring 56, and the piston rod 55 drives the pressure plate 57 to move upward, so that the suction cup 54 inside the pressure plate 57 extends to the outside, and the filter can be adsorbed at this time;

[0058] After the adsorption is completed, the movable plate 35 moves horizontally to the top of the frame 23. At this time, one end of the valve stem is in contact with one side of the limit frame, and then the movable plate 35 descends, and the movable plate 35 drives the solenoid valve 37 to descend. When the high-efficiency filter 14 and the medium-efficiency filter 13 inside the frame 23 at the corresponding position are in contact, the solenoid valve 37 on the far right is closed, so that the negative pressure airflow cannot pass, so that the fourth spring 56 drives the piston rod 55 to reset, and the piston rod 55 drives the pressure plate 57 to reset. The pressure plate 57 contacts the upper surface of the high-efficiency filter 14, and the pressure plate 57 stores the suction cup 54 into the storage groove inside it, and the third spring 522 drives the block 521 to reset, and the block 521 enters the slot 551 to fix the piston rod 55. , so that the pressure plate 57 and the rightmost fixing frame 5 are fixed, and then the moving plate 35 continues to descend, so that the medium-efficiency filter 13 and the coarse-efficiency filter 12 under the middle fixing frame 5 are in contact, and then the middle solenoid valve 37 is driven to close, so that the pressure plate 57 descends and contacts the upper surface of the medium-efficiency filter 13, and the pressure plate 57 and the middle fixing frame 5 are fixed. As the moving plate 35 continues to descend, the middle pressure plate 57 presses the medium-efficiency filter 13, and the rightmost pressure plate 57 presses the high-efficiency filter 14. When the coarse-efficiency filter 12 is placed, the leftmost solenoid valve 37 is closed, so that the coarse-efficiency filter 12 is separated from the suction cup 54, and then the fixing frame 5 is driven to reset. After the reset is completed, all the solenoid valves 37 are driven to open to repeat the last operation.

[0059] This embodiment can protect the suction cup 54 to prevent the suction cup 54 from plastic deformation due to excessive squeezing force, which helps to protect the integrity of the suction cup 54, extend its service life, and reduce downtime and cost for repairs caused by damage to the suction cup 54.

[0060] An automatic production process for an air filter comprises the following steps:

[0061] S1: At the starting position of the production line, various required filter screens are prepared, including a coarse-effect filter screen 12, a medium-effect filter screen 13 and a high-efficiency filter screen 14;

[0062] S2: placing a coarse filter 12 in the frame 23 at the transport position of the medium filter 13, placing a coarse filter 12 in the frame 23 at the transport position of the high efficiency filter 14, and then placing a medium filter 13 on the basis of the coarse filter 12;

[0063] S3: The prepared coarse filter screen 12, medium filter screen 13 and high efficiency filter screen 14 are placed in each partition area in the axial direction in a predetermined order and stacking method, and then the stacked filter screens are transported to the bottom of the three sets of fixed frames 5 by the first conveyor belt 15, ready for the next step of adsorption and placement operation;

[0064] S4: The three sets of fixing frames 5 drive the suction cups 54 to descend and respectively adsorb the coarse filter 12, the medium filter 13 and the high efficiency filter 14, and then respectively place the coarse filter 12, the medium filter 13 and the high efficiency filter 14 in the frame 23 at their corresponding positions;

[0065] S5: After the placement is completed, the pressing plate 57 at the medium-efficiency filter 13 and the high-efficiency filter 14 is driven to descend. When the fixing frame 5 drives the pressing plate 57 to descend, the stacked filter screens in the frame 23 can be pressed together;

[0066] S6: After the pressing is completed, the pressing plate 57 and the fixing frame 5 are reset to the initial position and wait for the next operation. Meanwhile, the second conveyor belt 21 rotates intermittently to sequentially switch the frames 23 that have completed the pressing to the next group of transportation areas. During this process, the frames 23 that have completed the pressing can be taken out by workers or mechanical arms.

[0067] S7: Perform quality inspection on the taken out frames 23 to ensure that the filter screens are correctly laminated, tightly pressed, and free of damage or defects. The qualified frames 23 are packaged, labeled, and prepared for shipment or storage. The unqualified frames 23 are reworked or scrapped.

[0068] The mesh number of the coarse-effect filter 12 is lower than the mesh number of the medium-effect filter 13 , and the mesh number of the medium-effect filter 13 is lower than the mesh number of the high-efficiency filter 14 .

[0069] Working principle: before using the device, first place the coarse filter 12, the medium filter 13 and the high-efficiency filter 14 in the conveying area formed between the first conveyor belt 15 and the partition 11, and place the coarse filter 12, the medium filter 13 and the high-efficiency filter 14 in order from left to right, then put a coarse filter 12 in the frame 23 at the position corresponding to the medium filter 13, and put a coarse filter 12 and a medium filter 13 in the frame 23 at the position corresponding to the high-efficiency filter 14, and the coarse filter 12 is at the bottom layer, and then the device can be turned on for work;

[0070] The first conveyor belt 15 is driven to rotate intermittently, and the first conveyor belt 15 synchronously drives the coarse-effect filter 12, the medium-effect filter 13 and the high-efficiency filter 14 to move synchronously to the bottom of the fixed frame 5, and the cylinder 34 is opened. The cylinder 34 drives the movable plate 35 to descend, and the movable plate 35 drives the three groups of fixed frames 5 to descend. The three groups of fixed frames 5 respectively drive the suction cups 54 inside them to move downward, so that the three groups of suction cups 54 can respectively contact the upper surfaces of the coarse-effect filter 12, the medium-effect filter 13 and the high-efficiency filter 14, and the negative pressure pump 4 is turned on. The negative pressure pump 4 generates a negative pressure airflow, and the negative pressure airflow enters the interior of the first suction hood 36 through the first connecting pipe 41, and then the first suction hood 36 sends the air into the interior of the solenoid valve 37, and then enters the second suction hood 51 through the second connecting pipe 38 on the solenoid valve 37, and finally enters the interior of the suction cup 54 through the second suction hood 51, so that a negative pressure airflow is generated inside the suction cup 54, and the negative pressure airflow passes through the second suction hood 51. The air hood 51 enters the first sealing tube 52, and the negative pressure airflow drives the block 521 to move inside the first sealing tube 52 and stretch the third spring 522, so that the block 521 is disengaged from the internal slot 551 of the piston rod 55, so that the piston rod 55 is released from the limit, and at the same time, the negative pressure airflow enters the second sealing tube 53 through the first sealing tube 52, so that the piston rod 55 slides inside the second sealing tube 53 and squeezes the fourth spring 56, and the piston rod 55 drives the pressure plate 57 to move upward, so that the suction cup 54 inside the pressure plate 57 extends to the outside, and the suction cup 54 absorbs the coarse-effect filter 12, the medium-efficiency filter 13 and the high-efficiency filter 14, and the motor 31 is turned on, and the motor 31 drives the screw rod 32 to rotate, and the screw rod 32 drives the moving block 33 to slide inside the support frame 3, and the moving block 33 drives the moving plate 35 to move to the top of the frame 23, and then drives the moving plate 35 to descend, and the moving plate 35 drives the three groups of fixed frames 5 to descend synchronously;

[0071] After the adsorption is completed, the movable plate 35 moves horizontally to the top of the frame 23. At this time, one end of the valve stem is in contact with one side of the limit frame, and then the movable plate 35 descends, and the movable plate 35 drives the solenoid valve 37 to descend. When the high-efficiency filter 14 and the medium-efficiency filter 13 inside the frame 23 at the corresponding position are in contact, the solenoid valve 37 on the far right is closed, so that the negative pressure airflow cannot pass, so that the fourth spring 56 drives the piston rod 55 to reset, and the piston rod 55 drives the pressure plate 57 to reset. The pressure plate 57 contacts the upper surface of the high-efficiency filter 14, and the pressure plate 57 stores the suction cup 54 into the storage groove inside it, and the third spring 522 drives the block 521 to reset, and the block 521 enters the slot 551 to fix the piston rod 55. , so that the pressure plate 57 and the rightmost fixing frame 5 are fixed, and then the moving plate 35 continues to descend, so that the medium-efficiency filter 13 and the coarse-efficiency filter 12 under the middle fixing frame 5 are in contact, and then the middle solenoid valve 37 is driven to close, so that the pressure plate 57 descends and contacts the upper surface of the medium-efficiency filter 13, and the pressure plate 57 and the middle fixing frame 5 are fixed. As the moving plate 35 continues to descend, the middle pressure plate 57 presses the medium-efficiency filter 13, and the rightmost pressure plate 57 presses the high-efficiency filter 14. When the coarse-efficiency filter 12 is placed, the leftmost solenoid valve 37 is closed, so that the coarse-efficiency filter 12 is separated from the suction cup 54, and then the fixing frame 5 is driven to reset. After the reset is completed, all the solenoid valves 37 are driven to open to repeat the last operation.

[0072] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An automatic production equipment for air filter, characterized in that: The invention comprises a first conveying frame (1), wherein a first conveying belt (15) is rotatably connected inside the first conveying frame (1), a plurality of partitions (11) are fixedly connected between the first conveying frames (1), the first conveying belt (15) is divided into a plurality of conveying areas along the axial direction by the partitions (11), and the plurality of conveying areas are respectively provided with a coarse-effect filter screen (12), a medium-effect filter screen (13) and a high-efficiency filter screen (14) along the axial direction, a support frame (3) is provided on one side of the first conveying frame (1), and a moving block (33) is symmetrically slidably connected inside the support frame (3), and the two moving blocks (33) are symmetrically slidably connected to the inside of ... A movable plate (35) is slidably connected between the blocks (33); a fixed frame (5) is slidably connected to the lower surface of the movable plate (35); a plurality of suction cups (54) are slidably connected to the interior of the fixed frame (5); the suction cups (54) are fixedly connected to the inner upper surface of the fixed frame (5); a second conveying frame (2) is provided on one side of the support frame (3); a second conveying belt (21) is rotatably connected to the interior of the second conveying frame (2); a plurality of positioning frames (22) are fixedly connected to the surface of the second conveying frame (2); and frames (23) are provided between adjacent positioning frames (22); The upper surface of the support frame (3) is fixedly connected to a negative pressure pump (4), the output end of the negative pressure pump (4) is fixedly connected to a first connecting pipe (41), one end of the first connecting pipe (41) is fixedly connected to a first air suction hood (36), the lower surface of the first air suction hood (36) is fixedly connected to a plurality of solenoid valves (37), and the plurality of solenoid valves (37) are all fixedly connected to the upper surface of the movable plate (35); A plurality of second connecting pipes (38) are fixedly connected to the surface of each solenoid valve (37), one end of each second connecting pipe (38) is fixedly connected to a second air suction cover (51), and the lower surface of the second air suction cover (51) and one end of the suction cup (54) are fixed and communicated with each other; The lower surface of the second air suction hood (51) is symmetrically fixedly connected with a first sealing tube (52), a second sealing tube (53) is fixedly connected between the two first sealing tubes (52), the second sealing tube (53) is communicated with one end of the first sealing tube (52), a piston rod (55) is slidably connected inside the second sealing tube (53), one end of the piston rod (55) is fixedly connected to the inner upper surface of the pressure plate (57), one end of the piston rod (55) is fixedly connected to the pressure plate (57), and a fourth spring (56) is fixedly connected between one end of the piston rod (55) and the inner wall of the fixed frame (5); A receiving groove is provided inside the pressing plate (57), and the size of the receiving groove is larger than the diameter of the suction cup (54); A clamping block (521) is slidably connected inside one end of the first sealing tube (52), a third spring (522) is fixedly connected between one end of the clamping block (521) and the inside of the first sealing tube (52), a clamping groove (551) is provided on the surface of the piston rod (55), and the sizes of the clamping groove (551) and the clamping block (521) match.

2. The automatic production equipment for air filter according to claim 1, characterized in that: The interiors of the two moving blocks (33) are both threadedly connected with a screw rod (32), and the two ends of the screw rod (32) are rotatably connected to the two ends of the interior of the support frame (3). A motor (31) is symmetrically fixedly connected to one side of the support frame (3), and the output end of the motor (31) is fixedly connected to one end of the screw rod (32). The one side of the two moving blocks (33) is both fixedly connected with a cylinder (34), and the movable end of the cylinder (34) is fixedly connected to the upper surface of the moving plate (35).

3. The automatic production equipment for air filter according to claim 1, characterized in that: A moving rod (310) is fixedly connected to the upper surface of the fixed frame (5), the moving rod (310) is slidably connected to the lower surface of the moving plate (35), and a second spring (39) is fixedly connected between the lower surface of the moving plate (35) and the fixed frame (5).

4. An automatic production process for an air filter, characterized in that: The production process is applicable to an automatic device for an air filter as described in any one of claims 1 to 3, and comprises the following steps: S1: At the starting position of the production line, various required filter screens are prepared, including a coarse-effect filter screen (12), a medium-effect filter screen (13) and a high-efficiency filter screen (14); S2: placing a coarse-effect filter (12) in the frame (23) at the transport position corresponding to the medium-effect filter (13), placing a coarse-effect filter (12) in the frame (23) at the transport position corresponding to the high-efficiency filter (14), and then placing a medium-effect filter (13) on top of the coarse-effect filter (12); S3: placing the prepared coarse-effect filter screen (12), medium-effect filter screen (13) and high-efficiency filter screen (14) in each partition area in a predetermined order and stacking manner in the axial direction, and then transporting the stacked filter screens to the bottom of the three sets of fixed frames (5) via a first conveyor belt (15) to prepare for the next step of adsorption and placement operations; S4: the three sets of fixing frames (5) drive the suction cups (54) to descend and respectively adsorb the coarse-effect filter (12), the medium-effect filter (13) and the high-efficiency filter (14), and then respectively place the coarse-effect filter (12), the medium-effect filter (13) and the high-efficiency filter (14) in the frames (23) at their corresponding positions; S5: After the placement is completed, the pressing plate (57) at the medium-efficiency filter (13) and the high-efficiency filter (14) is driven to descend. When the fixing frame (5) drives the pressing plate (57) to descend, the stacked filter screens in the frame (23) can be pressed together; S6: After the pressing is completed, the pressing plate (57) and the fixing frame (5) are reset to the initial position and wait for the next operation. At the same time, the second conveyor belt (21) rotates intermittently to switch the frames (23) that have completed the pressing to the next group of transportation areas in sequence. During this process, the frames (23) that have completed the pressing can be taken out by workers or a robot arm; S7: Perform quality inspection on the removed frames (23) to ensure that the filter screens are correctly laminated, tightly pressed, and free of damage or defects. The qualified frames (23) are packaged, labeled, and prepared for shipment or storage. The unqualified frames (23) are reworked or scrapped.

5. The automatic production process of an air filter according to claim 4, characterized in that: The mesh number of the coarse-effect filter (12) is lower than the mesh number of the medium-effect filter (13), and the mesh number of the medium-effect filter (13) is lower than the mesh number of the high-efficiency filter (14).

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