An automatic glue - coating production line for a filter

Abstract

The present invention belongs to the technical field of automatic gluing, and discloses an automatic gluing production line for a filter, which includes a feeding conveyor belt, a pushing module, a hoist, a discharging conveyor belt, an automatic gluing module and a nozzle mechanism; the pushing module is arranged on the feeding conveyor belt, and the hoist is connected to the feeding conveyor belt and is located in the pushing direction of the pushing module. This design eliminates the need for separate glue replenishment. When the valve assembly is closed, compensation can be synchronously carried out into the glue outlet pipe, ensuring that the glue output of the glue outlet pipe does not decrease, improving the gluing efficiency of the filter frame. At the same time, the design that the opening of the feeding port increases as the opening of the valve assembly decreases can achieve that when the glue output of the valve assembly decreases, the glue output of the feeding port will increase adaptively. Due to the design of the second spring, the pushing speed of the movable rod can be adaptively increased according to the increase in the opening of the feeding port to ensure that the glue output also increases when the opening of the feeding port increases.

Description

Technical Field

[0001] The invention belongs to the technical field of automatic glue coating, and specifically relates to an automatic glue coating production line for filters. Background Art

[0002] During the processing and production of filters, an automatic glue coating production line is used for glue coating treatment. In the process of glue coating by the existing glue coating machine, the opening and closing of the glue are usually controlled by a pneumatic valve. However, when the valve is closed, there is a certain stroke. During the closing process, the glue output of the glue coating machine decreases as the opening of the valve decreases. When the glue coating is completed and the valve is closed, glue overflow will occur at the end point of the filter glue coating. The existing technology usually adopts the method of closing the valve in advance near the end point, which will result in less glue output near the end point and subsequent separate glue filling is required. During the glue filling process, it is not easy to control the filling amount and it is impossible to perform corresponding filling according to the decreasing trend of the glue output with the valve closing. Moreover, the separate glue filling process will reduce the glue coating efficiency of the glue coating mechanism, thereby also reducing the production efficiency of the filter.

[0003] Therefore, an automatic glue coating production line for filters is proposed to solve the above problems. Summary of the Invention

[0004] To solve the problems raised in the above background art, the invention provides an automatic glue coating production line for filters.

[0005] To achieve the above object, the invention provides the following technical solution: an automatic glue coating production line for filters, comprising a feeding conveyor belt, a pushing module, a hoist, a discharging conveyor belt, an automatic glue coating module and a nozzle mechanism;

[0006] The pushing module is arranged on the feeding conveyor belt, the hoist is connected to the feeding conveyor belt and is located in the pushing direction of the pushing module, the discharging conveyor belt is connected to the other side of the hoist, the automatic glue coating module is connected to the hoist, and the nozzle mechanism is arranged at the glue coating position of the automatic glue coating module;

[0007] The nozzle mechanism includes a discharging component, which is installed on the automatic glue coating module. The discharging component includes a glue outlet pipe, in which a valve component is provided. The top end of the valve component is connected to a first piston. An air pipe is arranged in the glue outlet pipe. A glue inlet pipe is communicated with the glue outlet pipe. A plurality of feeding ports are annularly formed in the lower part of the inner wall of the glue outlet pipe. An outer shell located outside the feeding ports is fixedly sleeved on the outside of the glue outlet pipe. A sealing ring capable of closing the feeding ports is slidably installed in the outer shell. A first magnetic block is fixedly installed in the sealing ring. An electromagnetic element one is installed above the inside of the outer shell. A connecting rod is connected above the first piston. The top end of the connecting rod extends into the glue outlet pipe and is connected to a fixing frame. Fixing rods are respectively connected to the front and rear of the bottom of the fixing frame. The bottom end of the fixing rod is connected to a connecting cylinder. A round rod is sleeved inside the connecting cylinder. The bottom end of the round rod extends into the outer shell and is connected to the sealing ring. A first spring is sleeved on the outside of the round rod. The two ends of the first spring are respectively connected to the round rod and the inner wall of the connecting cylinder.

[0008] Preferably, a glue replenishing cylinder is connected to one side of the glue outlet pipe. A material cavity is provided below the inside of the glue replenishing cylinder. An air cavity is provided above the inside of the glue replenishing cylinder. A second piston and a movable rod are respectively sleeved inside the air cavity and the material cavity. A third piston sleeved inside the glue replenishing cylinder is connected between the second piston and the movable rod. An air hole capable of communicating with the air cavity is formed in one side of the glue replenishing cylinder. A communicating pipe capable of communicating with the material cavity is connected to one side of the glue replenishing cylinder. An air filter element is provided at the port of the communicating pipe. A square rod is connected to the top of the second piston.

[0009] Preferably, a swing arm is movably installed on the top of the glue replenishing cylinder. A first round shaft capable of moving inside the swing arm is connected inside the fixing frame. A movable frame is movably sleeved above the glue replenishing cylinder. A second round shaft capable of moving inside the swing arm is installed inside the movable frame. An installation plate located inside the air cavity is connected to the bottom of the second round shaft. The installation plate is sleeved on the outside of the square rod. A second spring located on the outside of the square rod is connected between the installation plate and the second piston. A pressing plate located above the glue replenishing cylinder is connected to one side of the movable frame.

[0010] Preferably, the nozzle mechanism further includes an immediate stop component, which is arranged on the glue replenishing cylinder. The immediate stop component includes a first air cylinder, which is installed on the glue replenishing cylinder. A fourth piston is sleeved inside the first air cylinder. A round pipe is communicated with the bottom of the first air cylinder. The bottom end of the round pipe is communicated with a second air cylinder, which is installed on the glue replenishing cylinder.

[0011] Preferably, a pressing frame extending above the first air cylinder is connected to the top of the fourth piston. A third spring is connected to the bottom of the fourth piston. The other end of the third spring is connected to the first air cylinder.

[0012] Preferably, a fifth piston is sleeved outside the second air cylinder. An installation rod is fixedly sleeved inside the fifth piston. One end of the installation rod is connected with a rubber block located outside the second air cylinder. The rubber block is close to the air hole. A sixth piston is movably sleeved outside the installation rod. A fourth spring located outside the installation rod is connected between the sixth piston and the fifth piston.

[0013] Preferably, the nozzle mechanism further includes a glue supply assembly arranged on the glue replenishing cylinder. The glue supply assembly includes a storage barrel installed on the glue replenishing cylinder. A first electromagnetic valve is arranged at the bottom of the storage barrel. The other end of the first electromagnetic valve communicates with a filling pipe. The other end of the filling pipe is connected to the glue replenishing cylinder and can communicate with the material cavity. A second electromagnetic valve is arranged outside the storage barrel. The other end of the second electromagnetic valve communicates with a replenishing pipe that can be connected to the glue storage system of the automatic glue coating module.

[0014] Preferably, a seventh piston is sleeved inside the storage barrel. Both sides of the top of the seventh piston are connected with limiting rods sleeved above the storage barrel. A second magnetic block is installed at the top of the seventh piston. A second electromagnetic element is installed above the storage barrel inside. An air filter element is arranged at the top of the storage barrel.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] By providing a feed inlet, a sealing ring and a second spring, when the valve assembly is closed, under the upward movement of the first piston, the connecting rod and the fixing frame will rise together, driving the fixing rod and the sealing ring to rise together. The sealing ring will gradually reduce the closed range of the feed inlet, so that the opening of the feed inlet increases as the opening of the valve assembly decreases. Due to the upward movement of the fixing frame, the movable frame and the mounting plate can be driven to descend by the swing of the swing arm, so that the second spring is compressed. Due to the elastic recovery of the second spring, the second piston, the third piston and the movable rod can be pushed to descend, and the colloid in the material cavity is pressed into the glue outlet pipe through the sealing ring, realizing synchronous glue replenishment during the closing process of the valve assembly. This design does not require separate glue replenishment and can realize synchronous compensation into the glue outlet pipe when the valve assembly is closed, ensuring that the glue output of the glue outlet pipe will not decrease, improving the glue coating efficiency of the cleaner frame. At the same time, the design that the opening of the feed inlet increases as the opening of the valve assembly decreases can achieve that when the glue output of the valve assembly decreases, the glue output of the feed inlet will increase adaptively. Due to the design of the second spring, the pushing speed of the movable rod can be increased adaptively according to the increase of the opening of the feed inlet to ensure that the glue output also increases when the opening of the feed inlet increases.

[0017] In the present invention, by providing a rubber block and an air cylinder II, when the valve assembly is completely closed, the movable frame will also descend to the lowest position. At this time, the pressing plate will squeeze the extrusion frame and piston IV to descend, and at the same time spring III is compressed. The gas inside air cylinder I is sent into air cylinder II through a round tube, pushing piston VI to move outward. At this time, spring IV is compressed. Due to the elastic force recovery of spring IV, it can push piston V, the mounting rod, and the rubber block to quickly push out, abutting the rubber block against the glue replenishing cylinder to seal the air hole, thereby sealing the lower part inside the air cavity, making it impossible for piston II to continue to push downward, and then achieving the effect of immediately stopping the descent of the movable rod, realizing that the feeding port no longer continues to discharge glue after the valve assembly is completely closed, and improving the accuracy of the glue replenishing amount.

[0018] In the present invention, by providing an electromagnetic component I and a magnetic block I, after the valve assembly is completely closed, electromagnetic component I operates and generates magnetic repulsion on magnetic block I, pushing the sealing ring and the round rod to descend to seal the feeding port. When the valve assembly is opened again to apply glue to the next filter frame, when the fixed frame descends, piston II, piston III, and the movable rod will move upward. At the same time, solenoid valve I is opened. Under the negative pressure generated by the upward movement of the movable rod, the colloid in the reserve barrel is sucked into the material cavity through the filling tube to fill it, and at the same time piston VII will descend accordingly, so as to achieve the effect of supplementing the missing colloid in the material cavity for subsequent continuous glue replenishing. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural diagram of the present invention;

[0020] Figure 2 is a schematic top view structure diagram of the present invention;

[0021] Figure 3 is a schematic structural diagram of the nozzle mechanism of the present invention;

[0022] Figure 4 is a schematic cross-sectional structure diagram of the glue discharging tube of the present invention;

[0023] Figure 5 is a schematic cross-sectional structure diagram of the air cavity of the present invention;

[0024] Figure 6 is Figure 5 a partial enlarged structural diagram at A in

[0025] Figure 7 is Figure 5 a partial enlarged structural diagram at B in

[0026] Figure 8 is a schematic cross-sectional structure diagram of the movable frame of the present invention;

[0027] Figure 9 is a schematic cross-sectional structure diagram of the connecting cylinder of the present invention;

[0028] Figure 10 is Figure 9 a partially enlarged structural schematic diagram at position C in

[0029] Figure 11 a sectional structural schematic diagram of the storage barrel of the present invention.

[0030] In the figure: 1, feeding conveyor belt; 2, pushing module; 3, elevator; 4, discharging conveyor belt; 5, automatic glue coating module; 6, nozzle mechanism; 61, discharging component; 611, glue outlet pipe; 612, valve component; 613, piston I; 614, glue inlet pipe; 615, air pipe; 616, feeding port; 617, outer shell; 618, sealing ring; 619, magnet I; 6110, electromagnetic element I; 6111, pressing plate; 6112, connecting rod; 6113, fixing frame; 6114, fixing rod; 6115, connecting cylinder; 6116, round rod; 6117, spring I; 6118, glue replenishing cylinder; 6119, air cavity; 6120, material cavity; 6121, round shaft I; 6122, communicating pipe; 6123, swing arm; 6124, round shaft II; 6125, movable frame; 6126, mounting plate; 6127, square rod; 6128, piston II; 6129, spring II; 6130, piston III; 6131, movable rod; 6132, air hole; 62, immediate stop component; 621, air cylinder I; 622, round pipe; 623, air cylinder II; 624, piston IV; 625, extrusion frame; 626, spring III; 627, piston V; 628, mounting rod; 629, rubber block; 6210, piston VI; 6211, spring IV; 63, glue supply component; 631, storage barrel; 632, solenoid valve I; 633, filling pipe; 634, piston VII; 635, limiting rod; 636, magnet II; 637, electromagnetic element II; 638, solenoid valve II; 639, feeding pipe. Specific embodiments

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0032] As Figures 1 to 11 shown, the present invention provides an automatic glue coating production line for a filter, including a feeding conveyor belt 1, a pushing module 2, an elevator 3, a discharging conveyor belt 4, an automatic glue coating module 5 and a nozzle mechanism 6;

[0033] The pushing module 2 is arranged on the feeding conveyor belt 1. The elevator 3 is connected to the feeding conveyor belt 1 and is located in the pushing direction of the pushing module 2. The discharging conveyor belt 4 is connected to the other side of the elevator 3. The automatic glue coating module 5 is connected to the elevator 3. The nozzle mechanism 6 is arranged at the glue coating position of the automatic glue coating module 5.

[0034] The nozzle mechanism 6 includes a discharging component 61. The discharging component 61 is installed on the automatic glue coating module 5. The discharging component 61 includes a glue outlet pipe 611. A valve component 612 is arranged in the glue outlet pipe 611. The top end of the valve component 612 is connected with a first piston 613. An air pipe 615 is arranged in the glue outlet pipe 611. A glue inlet pipe 614 is communicated with the glue outlet pipe 611. A plurality of feeding ports 616 are annularly arranged below the inner wall of the glue outlet pipe 611. The outer part of the glue outlet pipe 611 is fixedly sleeved with a housing 617 located outside the feeding ports 616. A sealing ring 618 capable of closing the feeding ports 616 is slidably installed in the housing 617. A first magnetic block 619 is fixedly installed in the sealing ring 618. An electromagnetic element 6110 is installed above the inner part of the housing 617. A connecting rod 6112 is connected above the first piston 613. The top end of the connecting rod 6112 extends into the glue outlet pipe 611 and is connected with a fixing frame 6113. Fixing rods 6114 are connected to the front and rear of the bottom of the fixing frame 6113. The bottom end of the fixing rod 6114 is connected with a connecting cylinder 6115. A round rod 6116 is sleeved inside the connecting cylinder 6115. The bottom end of the round rod 6116 extends into the housing 617 and is connected with the sealing ring 618. A first spring 6117 is sleeved outside the round rod 6116. The two ends of the first spring 6117 are respectively connected with the round rod 6116 and the inner wall of the connecting cylinder 6115.

[0035] With the above scheme: when the valve component 612 is closed, under the upward action of the first piston 613, the connecting rod 6112 and the fixing frame 6113 will rise together, driving the fixing rod 6114 and the sealing ring 618 to rise together. The sealing ring 618 will gradually reduce the closing range of the feeding ports 616, so that the opening of the feeding ports 616 increases as the opening of the valve component 612 decreases. Due to the design that the opening of the feeding ports 616 increases as the opening of the valve component 612 decreases, it can be achieved that when the glue discharging amount of the valve component 612 decreases, the glue discharging amount of the feeding ports 616 will adaptively increase.

[0036] Such as Figure 4 、 Figure 5 and Figure 8As shown, one side of the glue outlet tube 611 is connected to a glue replenishing cylinder 6118. Below in the glue replenishing cylinder 6118 is provided a material chamber 6120, and above in the glue replenishing cylinder 6118 is provided an air chamber 6119. Inside the air chamber 6119 and the material chamber 6120 are respectively sleeved with a second piston 6128 and a movable rod 6131. Between the second piston 6128 and the movable rod 6131 is connected a third piston 6130 sleeved inside the glue replenishing cylinder 6118. One side of the glue replenishing cylinder 6118 is provided with an air hole 6132 that can communicate with the air chamber 6119. One side of the glue replenishing cylinder 6118 is connected to a connecting pipe 6122 that can communicate with the material chamber 6120. At the port of the connecting pipe 6122 is provided an air filter element, and the top of the second piston 6128 is connected to a square rod 6127.

[0037] With the above scheme: Since when the second piston 6128 descends, the gas inside the air chamber 6119 can be discharged through the air hole 6132, and since when the movable rod 6131 descends, it can conduct air pressure compensation into the material chamber 6120 through 1622.

[0038] As Figure 4 、 Figure 5 and Figure 8 shown, a swing arm 6123 is movably installed at the top of the glue replenishing cylinder 6118. Inside the fixed frame 6113 is connected a first circular shaft 6121 that can move inside the swing arm 6123. Above the glue replenishing cylinder 6118 is movably sleeved with a movable frame 6125. Inside the movable frame 6125 is installed a second circular shaft 6124 that can move inside the swing arm 6123. The bottom of the second circular shaft 6124 is connected to a mounting plate 6126 located inside the air chamber 6119. The mounting plate 6126 is sleeved outside the square rod 6127. Between the mounting plate 6126 and the second piston 6128 is connected a second spring 6129 located outside the square rod 6127. One side of the movable frame 6125 is connected to a pressing plate 6111 located above the glue replenishing cylinder 6118.

[0039] With the above scheme: Since the fixed frame 6113 rises, it can drive the movable frame 6125 and the mounting plate 6126 to descend through the swing of the swing arm 6123, causing the second spring 6129 to be compressed. Due to the elastic recovery effect of the second spring 6129, it can push the second piston 6128, the third piston 6130, and the movable rod 6131 to descend, and press the colloid in the material chamber 6120 into the glue outlet tube 611 through the sealing ring 618, realizing synchronous glue replenishment during the closing process of the valve assembly 612. Due to the design of the second spring 6129, the pushing speed of the movable rod 6131 can be adaptively increased according to the increase in the opening of the feed port 616, so as to ensure that the glue output increases when the opening of the feed port 616 increases.

[0040] As Figures 5 to 7As shown, the nozzle mechanism 6 further includes an immediate stop component 62. The immediate stop component 62 is provided on the glue filling cylinder 6118. The immediate stop component 62 includes a first air cylinder 621. The first air cylinder 621 is installed on the glue filling cylinder 6118. A fourth piston 624 is sleeved inside the first air cylinder 621. A circular tube 622 is connected to the bottom of the first air cylinder 621. The bottom end of the circular tube 622 is connected to a second air cylinder 623. The second air cylinder 623 is installed on the glue filling cylinder 6118.

[0041] Adopting the above solution: When the fourth piston 624 descends, the gas inside the first air cylinder 621 is sent into the second air cylinder 623 through the circular tube 622, so that the second air cylinder 623 can be pressurized.

[0042] As Figures 5 to 7 shown, the top of the fourth piston 624 is connected to a pressing frame 625 extending above the first air cylinder 621. The bottom of the fourth piston 624 is connected to a third spring 626. The other end of the third spring 626 is connected to the first air cylinder 621.

[0043] Adopting the above solution: When the valve component 612 is completely closed, the movable frame 6125 will also descend to the lowest position. At this time, the pressing plate 6111 will press the pressing frame 625 and the fourth piston 624 to descend, and at the same time the third spring 626 is compressed, so that the gas inside the first air cylinder 621 can be sent into the second air cylinder 623 through the circular tube 622.

[0044] As Figures 5 to 7 shown, a fifth piston 627 is sleeved on the second air cylinder 623. An installation rod 628 is fixedly sleeved inside the fifth piston 627. One end of the installation rod 628 is connected to a rubber block 629 located outside the second air cylinder 623. The rubber block 629 is close to the air hole 6132. A sixth piston 6210 is movably sleeved outside the installation rod 628. A fourth spring 6211 located outside the installation rod 628 is connected between the sixth piston 6210 and the fifth piston 627.

[0045] Adopting the above solution: When the air pressure inside the second air cylinder 623 increases, it pushes the sixth piston 6210 to move outward. At this time, the fourth spring 6211 is compressed. Due to the elastic recovery of the fourth spring 6211, it can push the fifth piston 627, the installation rod 628 and the rubber block 629 to quickly push out, and abut the rubber block 629 against the glue filling cylinder 6118 to seal the air hole 6132, so as to seal the lower part inside the air chamber 6119, so that the second piston 6128 cannot continue to be pushed downward.

[0046] As Figure 11As shown in the figure, the nozzle mechanism 6 further includes a glue supply component 63. The glue supply component 63 is arranged on the replenishing glue cylinder 6118. The glue supply component 63 includes a storage barrel 631. The storage barrel 631 is installed on the replenishing glue cylinder 6118. A first electromagnetic valve 632 is provided at the bottom of the storage barrel 631. The other end of the first electromagnetic valve 632 communicates with a filling pipe 633. The other end of the filling pipe 633 is connected to the replenishing glue cylinder 6118 and can communicate with the material chamber 6120. A second electromagnetic valve 638 is provided outside the storage barrel 631. The other end of the second electromagnetic valve 638 communicates with a replenishing material pipe 639 that can be connected to the glue storage system of the automatic glue coating module 5.

[0047] With the above scheme: When the valve assembly 612 is opened again to coat the next filter frame, the fixing frame 6113, the fixing rod 6114 and the connecting cylinder 6115 descend, so that the elastic force of the first spring 6117 is restored, and then the first electromagnetic element 6110 is closed. When the fixing frame 6113 descends, the second piston 6128, the third piston 6130 and the movable rod 6131 will move upward. At the same time, the first electromagnetic valve 632 is opened. Under the negative pressure generated by the upward movement of the movable rod 6131, the colloid in the storage barrel 631 is sucked into the material chamber 6120 through the filling pipe 633 for filling. At the same time, the seventh piston 634 will descend accordingly, so that the effect of supplementing the missing colloid in the material chamber 6120 can be achieved.

[0048] As Figure 11 As shown in the figure, a seventh piston 634 is sleeved inside the storage barrel 631. Both sides of the top of the seventh piston 634 are connected with limiting rods 635 sleeved above the storage barrel 631. A second magnetic block 636 is installed at the top of the seventh piston 634. A second electromagnetic element 637 is installed above the inside of the storage barrel 631. An air filter element is provided at the top of the storage barrel 631.

[0049] With the above scheme: When the valve assembly 612 is closed, the second electromagnetic element 637 operates to generate magnetic attraction for the second magnetic block 636, pulling the seventh piston 634 to rise and reset. At the same time, the second electromagnetic valve 638 is opened, and the colloid in the glue storage system in the automatic glue coating module 5 is sucked into the storage barrel 631 through the replenishing material pipe 639 for filling.

[0050] The working principle and usage process of the present invention:

[0051] During use, the feeding conveyor belt 1 conveys the filter frame to the pushing module 2. Due to the operation of the pushing module 2, the filter frame is pushed into the partition of the elevator 3 by the feeding push rod. The automatic glue coating module 5 operates, and the filter frame is coated with glue through the nozzle mechanism 6. Then, it is pushed onto the discharging conveyor belt 4 for discharging through the discharging push rod of the pushing module 2. At the same time, the feeding push rod pushes the next filter frame onto the partition below the elevator 3. As the filter frame above is pushed out, the elevator 3 operates to lift the filter frame on the next partition for continuous glue coating.

[0052] During glue application, the pneumatic component controls the descent of the first piston 613 and the valve component 612 through the air pipe 615 to open the glue outlet pipe 611. At this time, the automatic glue application module 5 sends the glue into the glue outlet pipe 611 through the glue inlet pipe 614 and sprays it out from the bottom end of the glue outlet pipe 611.

[0053] When the valve component 612 is closed, under the upward movement of the first piston 613, the connecting rod 6112 and the fixed frame 6113 will rise together. Due to the upward movement of the first piston 613, it can drive the fixed rod 6114, the connecting cylinder 6115, the round rod 6116 and the sealing ring 618 to rise together. The sealing ring 618 will gradually reduce the closed range of the feed port 616, so that the opening of the feed port 616 increases as the opening of the valve component 612 decreases. Due to the upward movement of the fixed frame 6113, it can drive the swing arm 6123 to swing through the first round shaft 6121, and at the same time drive the movable frame 6125 and the mounting plate 6126 to descend through the second round shaft 6124, so that the second spring 6129 is compressed. Due to the elastic recovery of the second spring 6129, it can push the second piston 6128, the third piston 6130 and the movable rod 6131 to descend, and press the glue in the material cavity 6120 into the glue outlet pipe 611 through the sealing ring 618, realizing synchronous glue replenishment during the closing process of the valve component 612, and finally achieving the effect of adaptive glue replenishment.

[0054] When the valve component 612 is completely closed, the movable frame 6125 will also descend to the lowest position. At this time, the pressing plate 6111 will squeeze the extrusion frame 625 and the fourth piston 624 to descend, and at the same time the third spring 626 is compressed, and the gas in the first air cylinder 621 is sent into the second air cylinder 623 through the round pipe 622, pushing the sixth piston 6210 to move outward. At this time, the fourth spring 6211 is compressed. Due to the elastic recovery of the fourth spring 6211, it can quickly push out the fifth piston 627, the mounting rod 628 and the rubber block 629, and abut the rubber block 629 against the glue replenishment cylinder 6118 to seal the air hole 6132, thereby closing the lower part of the air cavity 6119, making the second piston 6128 unable to continue to push downward, and then achieving the effect of immediately stopping the descent of the movable rod 6131.

[0055] After the valve assembly 612 is completely closed, the first electromagnetic element 6110 operates and generates a magnetic repulsion on the first magnetic block 619, pushing the sealing ring 618 and the round rod 6116 downward to seal the feed port 616. At this time, the first spring 6117 is compressed. When the valve assembly 612 is opened again to apply glue to the next filter frame, the fixing bracket 6113, the fixing rod 6114, and the connecting cylinder 6115 descend, enabling the elastic force of the first spring 6117 to recover. Then, the first electromagnetic element 6110 is turned off. When the fixing bracket 6113 descends, the second piston 6128, the third piston 6130, and the movable rod 6131 move upward. At the same time, the first solenoid valve 632 is opened. Under the negative pressure generated by the upward movement of the movable rod 6131, the glue in the reserve barrel 631 is sucked into the material cavity 6120 through the filling pipe 633 to fill it. At the same time, the seventh piston 634 will descend accordingly, thereby achieving the effect of replenishing the missing glue in the material cavity 6120.

[0056] When the valve assembly 612 is closed, the second electromagnetic element 637 operates, generating a magnetic attraction on the second magnetic block 636, pulling the seventh piston 634 upward to reset. At the same time, the second solenoid valve 638 is opened, and the glue in the glue storage system in the automatic glue application module 5 is sucked into the reserve barrel 631 through the replenishing pipe 639 to fill it.

[0057] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0058] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made in these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic glue - applying production line for a filter, characterized in that, It includes a feeding conveyor belt (1), a pushing module (2), a hoist (3), a discharging conveyor belt (4), an automatic glue coating module (5) and a nozzle mechanism (6); The pushing module (2) is arranged on the feeding conveyor belt (1). The hoist (3) is connected to the feeding conveyor belt (1) and is located in the pushing direction of the pushing module (2). The discharging conveyor belt (4) is connected to the other side of the hoist (3). The automatic glue coating module (5) is connected to the hoist (3). The nozzle mechanism (6) is arranged at the glue coating position of the automatic glue coating module (5); The nozzle mechanism (6) includes a discharging component (61). The discharging component (61) is installed on the automatic glue coating module (5). The discharging component (61) includes a glue outlet pipe (611). A valve component (612) is arranged in the glue outlet pipe (611). A piston one (613) is connected to the top end of the valve component (612). An air pipe (615) is arranged in the glue outlet pipe (611). A glue inlet pipe (614) is communicated with the glue outlet pipe (611). A plurality of feeding ports (616) are annularly formed in the lower part of the inner wall of the glue outlet pipe (611). An outer shell (617) located outside the feeding ports (616) is fixedly sleeved on the outer part of the glue outlet pipe (611). A sealing ring (618) capable of closing the feeding ports (616) is slidably installed in the outer shell (617). A magnet one (619) is fixedly installed in the sealing ring (618). An electromagnetic element one (6110) is installed above the inner part of the outer shell (617). A connecting rod (6112) is connected above the piston one (613). The top end of the connecting rod (6112) extends into the glue outlet pipe (611) and is connected with a fixing frame (6113). Fixing rods (6114) are connected to the front and rear of the bottom of the fixing frame (6113). The bottom end of the fixing rod (6114) is connected with a connecting cylinder (6115). A round rod (6116) is sleeved inside the connecting cylinder (6115). The bottom end of the round rod (6116) extends into the outer shell (617) and is connected with the sealing ring (618). A spring one (6117) is sleeved on the outer part of the round rod (6116). The two ends of the spring one (6117) are respectively connected with the round rod (6116) and the inner wall of the connecting cylinder (6115); One side of the glue outlet tube (611) is connected with a glue replenishing cylinder (6118). A material cavity (6120) is arranged below the glue replenishing cylinder (6118), and an air cavity (6119) is arranged above the glue replenishing cylinder (6118). A second piston (6128) and a movable rod (6131) are respectively sleeved inside the air cavity (6119) and the material cavity (6120). A third piston (6130) sleeved inside the glue replenishing cylinder (6118) is connected between the second piston (6128) and the movable rod (6131). An air hole (6132) capable of communicating with the air cavity (6119) is formed on one side of the glue replenishing cylinder (6118). A communicating pipe (6122) capable of communicating with the material cavity (6120) is connected to one side of the glue replenishing cylinder (6118). An air filter element is arranged at the port of the communicating pipe (6122). The top of the second piston (6128) is connected with a square rod (6127).

2. The automatic glue coating production line of a filter according to claim 1, wherein: A swing arm (6123) is movably installed at the top of the glue replenishing cylinder (6118). A first round shaft (6121) capable of moving inside the swing arm (6123) is connected inside the fixed frame (6113). An activity frame (6125) is movably sleeved above the glue replenishing cylinder (6118). A second round shaft (6124) capable of moving inside the swing arm (6123) is installed inside the activity frame (6125). The bottom of the second round shaft (6124) is connected with a mounting plate (6126) located inside the air cavity (6119). The mounting plate (6126) is sleeved outside the square rod (6127). A second spring (6129) located outside the square rod (6127) is connected between the mounting plate (6126) and the second piston (6128). One side of the activity frame (6125) is connected with a pressing plate (6111) located above the glue replenishing cylinder (6118).

3. The automatic glue - coating production line of a filter according to claim 1, characterized in that: The spray head mechanism (6) further includes an immediate stop component (62). The immediate stop component (62) is arranged on the glue replenishing cylinder (6118). The immediate stop component (62) includes a first air cylinder (621). The first air cylinder (621) is installed on the glue replenishing cylinder (6118). A fourth piston (624) is sleeved inside the first air cylinder (621). A round pipe (622) is communicated with the bottom of the first air cylinder (621). The bottom end of the round pipe (622) is communicated with a second air cylinder (623). The second air cylinder (623) is installed on the glue replenishing cylinder (6118).

4. The automatic glue coating production line of a filter according to claim 3, wherein: The top of the fourth piston (624) is connected with a pressing frame (625) extending above the first air cylinder (621). The bottom of the fourth piston (624) is connected with a third spring (626). The other end of the third spring (626) is connected with the first air cylinder (621).

5. The automatic glue - coating production line of a filter according to claim 4, wherein: The air cylinder two (623) is sleeved with a piston five (627). An installation rod (628) is fixedly sleeved inside the piston five (627). One end of the installation rod (628) is connected to a rubber block (629) located outside the air cylinder two (623). The rubber block (629) is close to the air hole (6132). The installation rod (628) is movably sleeved with a piston six (6210). A spring four (6211) located outside the installation rod (628) is connected between the piston six (6210) and the piston five (627).

6. The automatic glue coating production line of a filter according to claim 1, wherein: The nozzle mechanism (6) further includes a glue supply assembly (63). The glue supply assembly (63) is arranged on the glue replenishing cylinder (6118). The glue supply assembly (63) includes a reserve barrel (631). The reserve barrel (631) is installed on the glue replenishing cylinder (6118). A solenoid valve one (632) is arranged at the bottom of the reserve barrel (631). The other end of the solenoid valve one (632) communicates with a filling pipe (633). The other end of the filling pipe (633) is connected to the glue replenishing cylinder (6118) and can communicate with the material cavity (6120). A solenoid valve two (638) is arranged outside the reserve barrel (631). The other end of the solenoid valve two (638) communicates with a replenishing pipe (639) that can be connected to the glue storage system of the automatic glue coating module (5).

7. An automatic glue - coating production line for a filter according to claim 6, characterized in that: A piston seven (634) is sleeved inside the reserve barrel (631). The two sides of the top of the piston seven (634) are connected to a limiting rod (635) sleeved above the reserve barrel (631). A magnetic block two (636) is installed at the top of the piston seven (634). An electromagnetic element two (637) is installed above the inside of the reserve barrel (631). An air filter element is arranged at the top of the reserve barrel (631).

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