A high sealing glue coating device for screw holes

Abstract

The utility model discloses a high sealing gluing device of screw hole relates to gluing device field, and its technical key points are: including work frame, the top of work frame is equipped with the clamping part for clamping filter shell, still including the gluing part of being equipped with work frame top, the gluing part includes the gluing frame of being equipped with work frame top, the inside of gluing frame is equipped with the installation cavity, the inside of installation cavity is equipped with the glue filling cylinder, the inside of glue filling cylinder is equipped with piston cavity, the inside piston of piston cavity is connected with the glue head of pressing, the bottom of glue head and the bottom of piston cavity form the glue filling cavity that separates, the top of glue head is equipped with the glue pressing rod, and the purpose lies in solving the technical problem that depends on the observation of human eye and relies on the experience manual gluing, cannot guarantee the stable technology problem of the glue output.

Description

Technical Field

[0001] This utility model relates to the field of adhesive application devices, and in particular to a high-sealing adhesive application device for screw holes. Background Technology

[0002] In the production of filters for communication equipment, automotive electronics, and other fields, the filter housing typically features screw holes on both sides. These holes are used to screw in wire connectors, allowing wires to be inserted and connecting to the filter's internal input and output. To ensure stable and reliable operation of the equipment in humid or rainy environments, it is crucial that the tiny annular gap formed after the wire connector is screwed into the filter housing hole has excellent waterproof sealing performance. Currently, the most common sealing method in the industry involves the operator applying an appropriate amount of waterproof sealant to the internal thread area of ​​the hole before screwing the wire connector into it. This ensures that after the connector is tightened, the sealant fully fills and cures in the thread gap, forming a reliable sealing layer.

[0003] However, relying on human observation and experience to manually control the amount of glue applied can easily result in excessive glue. If too much glue is applied, it will overflow into the filter and affect the internal circuit performance. If too little glue is applied, it will result in incomplete sealing and ineffective waterproofing, causing inconvenience in applying the glue. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a high-sealing adhesive application device for screw holes, aiming to solve the technical problem that relying on human visual observation and manual adhesive application based on experience cannot guarantee a stable adhesive output.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows:

[0006] A high-sealing adhesive applicator for screw holes includes a work frame with a clamping part at the top for holding a filter housing, and an adhesive applicator at the top of the work frame. The adhesive applicator includes an adhesive applicator frame at the top of the work frame, an installation cavity inside the adhesive applicator frame, an adhesive filling cylinder inside the installation cavity, a piston cavity inside the adhesive filling cylinder, a pressure head connected to a piston inside the piston cavity, the bottom of the pressure head being spaced from the bottom of the piston cavity to form an adhesive filling cavity, a pressure rod at the top of the pressure head, a delivery pipe connected to the adhesive filling cavity at the bottom of the adhesive filling cylinder, and an adhesive applicator head rotatably connected to one side of the adhesive applicator frame, such that the adhesive applicator head faces the screw hole of the filter housing. One end of the delivery pipe is connected to the adhesive applicator head.

[0007] Within the glue-filling cavity formed by the piston cavity and the pressure head, when an external force is applied to the pressure rod, the pressure rod pushes the pressure head downwards. The pressure head squeezes the glue in the filling cavity, forcing it to flow out and into a connected delivery pipe. The glue is then transported to the applicator head via the delivery pipe. The applicator head is designed to be rotatable, allowing for easy and precise alignment of its outlet with the screw holes of the filter housing to be applicated. Since the downward distance and speed of the pressure head directly determine the amount of glue extruded, a uniform downward movement of the pressure head ensures consistent glue extrusion, resulting in even glue application to the screw holes of the filter housing. This method achieves active control of the output glue volume, solving the problem of unstable glue volume caused by visual observation and manual control based on experience, and effectively avoiding serious defects such as excessive or insufficient glue application.

[0008] Furthermore, in this application, the interior of the mounting cavity is provided with a lifting plate, and a rotating motor and a reducer are provided on one side of the lifting plate. The output end of the rotating motor is connected to the input end of the reducer, and the rotating motor drives the reducer to drive. The glue applicator is located at the output end of the reducer, and the output end of the reducer drives the glue applicator to rotate.

[0009] The input end of the reducer is connected to the output shaft of the rotating motor. The core function of the reducer is to convert the high-speed, low-torque output of the motor into the low-speed, high-torque output required by the dispensing head. This allows the reducer output shaft to drive the dispensing head to rotate around its axis at low speed and high torque. This is to prevent the adhesive from splashing or atomizing due to strong centrifugal force at excessively high speeds, causing it to leave the target area and resulting in uneven dispensing or even contamination of other parts. Low speed ensures that the adhesive can rotate in a controlled manner along the screw hole. High torque is used because the adhesive (especially anaerobic adhesive) has a certain viscosity, which causes resistance when the dispensing head coats the screw hole. High torque ensures that the dispensing head can still rotate stably and continuously under resistance, without jamming or stalling, ensuring the continuity and consistency of the dispensing action.

[0010] Furthermore, in this application, the reducer has an internal connecting pipe, one end of which is connected to one end of the conveying pipe, and the other end of which is connected to a connecting cylinder. One end of the glue applicator head is provided with a rotating cylinder, which is connected to the glue applicator head. The rotating cylinder is rotatably connected to one end of the connecting cylinder. The reducer drives the rotating cylinder to rotate. One end of the rotating cylinder has a rotating cavity, and the connecting cylinder passes through the interior of the rotating cavity. The rotating cavity and the connecting cylinder are rotatably connected, so that the rotating cavity and the interior of the connecting cylinder are in communication.

[0011] The connecting cylinder is located inside the reducer (not rotating with the output end) and serves as the glue outlet, directly connected to the delivery pipeline. The rotating cylinder is located on the output shaft of the reducer and rotates with the output shaft, directly connecting to the internal flow channel of the coating head. One end of the connecting cylinder is inserted into the rotating cavity at one end of the rotating cylinder, with a small annular gap between them, forming a mating surface for relative rotation. This allows the glue to enter the connecting cylinder from the delivery pipeline during the rotation of the rotating cylinder and be delivered to the coating head for coating through the rotating cavity of the rotating cylinder, thus solving the problem of continuous glue supply during the continuous rotation of the rotating coating head.

[0012] Furthermore, in this application, the interior of the rotating cavity is provided with a guide groove, the guide groove is annular, and the exterior of the connecting cylinder is formed with a guide protrusion ring, the guide protrusion ring being rotatably connected to the guide groove.

[0013] Furthermore, in this application, a sealing ring is fitted around the outside of the connecting cylinder. The sealing ring is elastic, so that the sealing ring abuts against the inside of the rotating cavity. The sealing ring is located on the side of the guide ring away from the connecting pipe.

[0014] Furthermore, in this application, a pressure-pressing screw is rotatably connected inside the mounting cavity. The pressure-pressing screw is vertically arranged, and a pressure-pressing nut is sleeved on the outside of the pressure-pressing screw. One end of the pressure-pressing screw is connected to one side of the pressure-pressing nut. A pressure-pressing motor is provided inside the mounting cavity, and the pressure-pressing motor drives the pressure-pressing screw to rotate.

[0015] Furthermore, in this application, a lifting screw is rotatably connected inside the mounting cavity. The lifting screw is vertically arranged, and a lifting nut is sleeved on the outside of the lifting screw. The lifting plate is connected to one side of the lifting nut. A lifting motor is provided inside the mounting cavity, and the lifting motor drives the lifting screw to rotate.

[0016] Furthermore, in this application, the top of the work frame is provided with a first adjusting frame, the first adjusting frame is rotatably connected to a first adjusting screw, a first adjusting motor is provided on one side of the first adjusting frame to drive the first adjusting screw to rotate, a first adjusting nut is sleeved on the outside of the first adjusting screw, a first movable frame is provided on one side of the first adjusting nut, a second adjusting frame is provided on the top of the first movable frame, a second adjusting frame is rotatably connected to the inside of the second adjusting frame, a second adjusting motor is provided on one side of the second adjusting frame to drive the second adjusting screw to rotate, the first adjusting screw and the second adjusting screw are arranged in a cross shape, a second adjusting nut is sleeved on the outside of the second adjusting screw, a second movable frame is provided on one side of the second adjusting nut, and the glue applicator is located on one side of the second movable frame.

[0017] Furthermore, in this application, the clamping part includes a mounting base frame disposed on the top of the work frame, a mounting plate disposed on the top of the mounting base frame, a clamping plate disposed on the top of the mounting plate, a plurality of clamping cylinders disposed on the top of the clamping plate, a clamping block disposed at the piston rod end of the clamping cylinder, a clamping pressure block disposed at the bottom of the clamping block, and the clamping pressure block and the clamping plate are separated to form a clamping interval.

[0018] Furthermore, in this application, a rotating disk is rotatably connected to the top of the mounting plate, the clamping plate is disposed on the top of the rotating disk, and a transmission motor is provided at the bottom of the mounting plate, the transmission motor driving the rotating disk to rotate.

[0019] This utility model has the following beneficial effects:

[0020] Within the glue-filling cavity formed by the piston cavity and the pressure head, when an external force is applied to the pressure rod, the pressure rod pushes the pressure head downwards. The pressure head squeezes the glue in the filling cavity, forcing it to flow out and into a connected delivery pipe. The glue is then transported to the applicator head via the delivery pipe. The applicator head is designed to be rotatable, allowing for easy and precise alignment of its outlet with the screw holes of the filter housing to be applicated. Since the downward distance and speed of the pressure head directly determine the amount of glue extruded, a uniform downward movement of the pressure head ensures consistent glue extrusion, resulting in even glue application to the screw holes of the filter housing. This method achieves active control of the output glue volume, solving the problem of unstable glue volume caused by visual observation and manual control based on experience, and effectively avoiding serious defects such as excessive or insufficient glue application. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model.

[0022] Figure 2 This is a schematic diagram of the structure of the glue-filling cylinder of this utility model.

[0023] Figure 3 This is a schematic diagram of the structure of the first and second adjustment frames of this utility model.

[0024] Figure 4 This is a schematic diagram of the lifting screw of this utility model.

[0025] Figure 5 This is a schematic diagram of the connecting cylinder of this utility model.

[0026] Figure 6 This is a schematic diagram of the adhesive applicator of this utility model.

[0027] Figure 7This is a schematic diagram of the adhesive pressing head of this utility model.

[0028] Figure 8 This is a schematic diagram of the adhesive pressing head of this utility model.

[0029] Figure 9 This is a schematic diagram of the filter housing.

[0030] Figure 10 This is a schematic diagram of the clamping interval of this utility model.

[0031] Figure 11 This is a schematic diagram of the rotating disk of this utility model.

[0032] In the attached figures, the following labels are used:

[0033] 100. Working frame; 120. Filter housing; 130. Screw hole; 200. Glue application section; 210. First adjusting frame; 211. First adjusting screw; 212. First adjusting nut; 213. First adjusting motor; 214. First movable frame; 220. Second adjusting frame; 221. Second adjusting screw; 222. Second adjusting nut; 223. Second movable frame; 224. Second adjusting motor; 230. Glue application frame; 231. Mounting cavity; 240. Glue filling cylinder; 241. Piston cavity; 2411. Glue filling cavity; 242. Glue pressing rod; 243. Glue pressing head; 244. Glue pressing nut; 245. Glue pressing screw; 246. 247. Pressure bonding motor; 250. Conveying pipe; 251. Lifting plate; 252. Rotating motor; 253. Reducer; 254. Connecting pipe; 255. Connecting cylinder; 256. Guide convex ring; 257. Sealing collar; 258. Rotating cylinder; 259. Rotating cavity; 259. Guide inner groove; 2591. Glue applicator head; 260. Lifting screw; 261. Lifting nut; 262. Lifting motor; 300. Clamping part; 310. Mounting base; 311. Mounting plate; 312. Drive motor; 320. Rotating disk; 321. Clamping plate; 330. Clamping cylinder; 331. Clamping block; 332. Clamping pressure block; 333. Clamping interval. Detailed Implementation

[0034] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0035] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0036] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows for communication; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0037] Reference Figures 1-11 In some specific embodiments, a high-sealing adhesive application device for screw holes includes a work frame 100, with a clamping part 300 on the top of the work frame 100 for clamping a filter housing 120, and an adhesive application part 200 on the top of the work frame 100. The adhesive application part 200 includes an adhesive application frame 230 on the top of the work frame 100, with an installation cavity 231 inside the adhesive application frame 230, an adhesive filling cylinder 240 inside the installation cavity 231, and a piston cavity 241 inside the adhesive filling cylinder 241. The piston inside the piston cavity 241 is connected to a pressure head 243. The bottom of the pressure head 243 is separated from the bottom of the piston cavity 241 to form a glue filling cavity 2411. The top of the pressure head 243 is provided with a pressure rod 242. The bottom of the glue filling cylinder 240 is connected to a conveying pipe 247 that communicates with the glue filling cavity 2411. A glue applicator 2591 is rotatably connected to one side of the glue applicator 230, so that the glue applicator 2591 faces the screw hole 130 of the filter housing 120. One end of the conveying pipe 247 is connected to the glue applicator 2591.

[0038] Through the above technical solution, in the glue-filling cavity 2411 formed by the glue storage piston cavity 241 and the glue-pressing head 243, when an external force is applied to the glue-pressing rod 242, the glue-pressing rod 242 pushes the glue-pressing head 243 downward. The glue-pressing head 243 squeezes the glue in the glue-filling cavity 2411 downward. The squeezed glue is forced to flow out of the glue-filling cavity 2411 and enter the conveying pipe 247 connected to it. Subsequently, the glue is conveyed to the applicator head 2591 through the conveying pipe 247. The applicator head 2591 is designed to be rotatable, which can facilitate... The outlet is precisely aligned and placed close to the screw hole 130 of the filter housing 120 that needs to be coated with adhesive. Since the downward movement distance and speed of the pressure head 243 directly determine the amount of adhesive extruded, it is only necessary to push the pressure head 243 downward at a uniform speed to ensure that the amount of adhesive extruded is consistent, so that the screw hole 130 of the filter housing 120 is coated with adhesive evenly. This method realizes active control of the amount of output adhesive, solves the problem of unstable adhesive amount caused by human observation and manual control based on experience, and effectively avoids serious defects such as excessive or insufficient adhesive amount.

[0039] It should be noted that the applied adhesive is an anaerobic adhesive. The core characteristic of anaerobic adhesive is that it only undergoes a curing reaction under conditions of oxygen isolation and metal contact. When the applicator 2591 applies the anaerobic adhesive quantitatively to the internal thread (metal surface) of the screw hole 130, the adhesive remains liquid when exposed to air for a short period before the wire connector is screwed in. Once the wire connector (metal) is screwed into the screw hole 130, the adhesive is squeezed in and fills the tiny gaps between the threads. In this narrow metal gap space, air is expelled, satisfying the two key conditions for anaerobic adhesive curing (oxygen isolation and metal contact). Therefore, the adhesive will automatically and quickly cure in the thread gaps after the wire connector is tightened, forming a strong and reliable sealing layer. At the same time, in order to prevent the adhesive from curing in the glue filling cavity 2411, the glue filling cylinder 240, the pressure head 243, the delivery pipe 247, and the applicator 2591 are made of non-metallic materials.

[0040] In addition, the pushing of the pressure rod 242 can be driven by a cylinder or a motor, and the rotation of the glue applicator 2591 can be driven by a motor; in order to facilitate the glue applicator 2591 to approach the screw hole 130, the shape of the glue applicator 2591 can be L-shaped or arc-shaped.

[0041] Reference Figures 1-7 In some specific embodiments, a lifting plate 250 is provided inside the mounting cavity 231. A rotating motor 251 and a reducer 252 are provided on one side of the lifting plate 250. The output end of the rotating motor 251 is connected to the input end of the reducer 252. The rotating motor 251 drives the reducer 252 to drive the transmission. The glue applicator 2591 is located at the output end of the reducer 252. The output end of the reducer 252 drives the glue applicator 2591 to rotate.

[0042] Through the above technical solution, the input end of the reducer 252 is connected to the output shaft of the rotating motor 251. The core function of the reducer 252 is to convert the high-speed, low-torque output of the motor into the low-speed, high-torque output required by the dispensing head 2591. This allows the output shaft of the reducer 252 to drive the dispensing head 2591 to rotate around its axis at low speed and high torque. This is to avoid the glue from splashing due to strong centrifugal force at excessively high speeds, causing it to leave the target area and resulting in uneven dispensing or even contamination of other parts. Low speed ensures that the glue can rotate in a controlled manner along the screw hole 130. High torque is used because the glue (especially anaerobic glue) has a certain viscosity, which causes resistance when the dispensing head 2591 is applying glue to the screw hole 130. High torque ensures that the dispensing head 2591 can still rotate stably and continuously under resistance, without jamming or stalling, thus ensuring the continuity and consistency of the dispensing action.

[0043] Reference Figure 5 In some specific embodiments, the reducer 252 has a connecting pipe 253 inside. One end of the connecting pipe 253 is connected to one end of the conveying pipe 247, and the other end of the connecting pipe 253 is connected to a connecting cylinder 254. One end of the glue applicator 2591 is provided with a rotating cylinder 257, which is connected to the glue applicator 2591. The rotating cylinder 257 is rotatably connected to one end of the connecting cylinder 254. The reducer 252 drives the rotating cylinder 257 to rotate. One end of the rotating cylinder 257 has a rotating cavity 258. The connecting cylinder 254 passes through the interior of the rotating cavity 258 and is rotatably connected to the connecting cylinder 254, so that the interior of the rotating cavity 258 and the interior of the connecting cylinder 254 are connected.

[0044] Through the above technical solution, the connecting cylinder 254 is set inside the reducer 252 (does not rotate with the output end) and serves as the glue outlet, directly connected to the conveying pipe 247. The rotating cylinder 257 is set on the output shaft of the reducer 252 and rotates with the output shaft, directly connecting to the internal flow channel of the coating head 2591. One end of the connecting cylinder 254 is inserted into the rotating cavity 258 at one end of the rotating cylinder 257. There is a small annular gap between the two, forming a mating surface for relative rotation. This allows the glue to enter the connecting cylinder 254 from the conveying pipe 247 during the rotation of the rotating cylinder 257, and be conveyed to the coating head 2591 for coating through the rotating cavity 258 of the rotating cylinder 257. This solves the problem of continuous glue supply during the continuous rotation of the rotating coating head 2591.

[0045] It should be noted that the outer diameter of the connecting cylinder 254 and the inner diameter of the rotating cavity 258 are controlled within a very small gap (on the order of tens of micrometers). The adhesive (such as anaerobic adhesive) has a certain viscosity. Within the tiny gap, the viscous adhesive itself will form a viscous layer adhering to the metal surface, generating a large flow resistance. Under the combined effect of low working pressure, tiny gap fit, and high viscosity fluid, the leakage at the gap is negligible or even insignificant. Therefore, the main flow path of the adhesive is through the rotating cylinder 257 into the dispensing head 2591.

[0046] Reference Figures 5-6 In some specific embodiments, a guide inner groove 259 is provided inside the rotating cavity 258. The guide inner groove 259 is annular, and a guide protrusion ring 255 is formed on the outside of the connecting cylinder 254. The guide protrusion ring 255 is rotatably connected to the guide inner groove 259.

[0047] Through the above technical solution, when the rotating cylinder 257 rotates, the guide convex ring 255 and the guide inner groove 259 rotate and cooperate, ensuring that the annular gap between the outer wall of the connecting cylinder 254 and the inner wall of the rotating cavity 258 remains uniform throughout the circumference and during the movement. This uniform micro gap is the core basis for achieving low leakage non-contact sealing. Without radial constraint, the gap may locally increase, causing leakage to intensify, or locally become too small, leading to friction, scraping, or even jamming, thereby ensuring the stable delivery of the adhesive.

[0048] Reference Figures 5-6 In some specific embodiments, a sealing ring 256 is sleeved on the outside of the connecting cylinder 254. The sealing ring 256 is elastic, so that the sealing ring 256 abuts against the inside of the rotating cavity 258. The sealing ring 256 is located on the side of the guide protrusion 255 away from the connecting pipe 254.

[0049] With the above technical solution, when the reducer 252 drives the rotating cylinder 257 (including the rotating cavity 258) to rotate, the sealing ring 256 fixed on the connecting cylinder 254 undergoes relative sliding friction with the inner wall of the rotating cavity 258. The adhesive (anaerobic adhesive) serves as the working medium and has a certain degree of lubricity. Some of the adhesive will penetrate into the sealing interface to form an extremely thin lubricating layer, while filling possible micropores, enhancing the sealing effect and reducing friction and wear, ensuring that the adhesive will not overflow from the gap.

[0050] Reference Figures 2-3 In some specific embodiments, a pressure-pressing screw 245 is rotatably connected inside the mounting cavity 231. The pressure-pressing screw 245 is vertically arranged, and a pressure-pressing nut 244 is sleeved on the outside of the pressure-pressing screw 245. One end of the pressure-pressing rod 242 is connected to one side of the pressure-pressing nut 244. A pressure-pressing motor 246 is provided inside the mounting cavity 231, and the pressure-pressing motor 246 drives the pressure-pressing screw 245 to rotate.

[0051] Through the above technical solution, when the pressure motor 246 drives the pressure screw 245 to rotate, the rotational motion is precisely converted into the linear lifting motion of the pressure nut 244 through the thread meshing action. One end of the pressure rod 242 is fixed to one side of the pressure nut 244. The up and down translation of the pressure nut 244 directly drives the pressure rod 242 to move synchronously, so that the pressure rod 242 drives the pressure head 243 to press the glue filling cavity 2411. This allows the pressure screw 245 of the pressure motor 246 to eliminate the need for human observation and experience judgment, thereby accurately controlling the position of the pressure rod 242 and ensuring that the glue dispensing amount is consistent each time.

[0052] Reference Figures 2-4 In some specific embodiments, a lifting screw 260 is rotatably connected inside the mounting cavity 231. The lifting screw 260 is vertically arranged, and a lifting nut 261 is sleeved on the outside of the lifting screw 260. The lifting plate 250 is connected to one side of the lifting nut 261. A lifting motor 262 is provided inside the mounting cavity 231, and the lifting motor 262 drives the lifting screw 260 to rotate.

[0053] With the above technical solution, when the batches of filter housing 120 to be coated are different, the height of its screw hole 130 is also different. At this time, the lifting motor 262 drives the lifting screw 260 to rotate, the lifting screw 260 drives the lifting nut 261 to rise and fall, the lifting nut 261 drives the lifting plate 250 to rise and fall, and the lifting plate 250 drives the glue applicator 2591 to rise and fall, so that the glue applicator 2591 matches the height of the screw hole 130 of the new batch of filter housing 120.

[0054] Reference Figure 4 In some specific embodiments, the top of the work frame 100 is provided with a first adjusting frame 210, the inside of which is rotatably connected to a first adjusting screw 211. A first adjusting motor 213 that drives the first adjusting screw 211 to rotate is provided on one side of the first adjusting frame 210. A first adjusting nut 212 is sleeved on the outside of the first adjusting screw 211. A first movable frame 214 is provided on one side of the first adjusting nut 212. A second adjusting frame 220 is provided on the top of the first movable frame 214. A second adjusting screw 221 is rotatably connected inside the second adjusting frame 220. A second adjusting motor 224 that drives the second adjusting screw 221 to rotate is provided on one side of the second adjusting frame 220. The first adjusting screw 211 and the second adjusting screw 221 are arranged in a cross shape. A second adjusting nut 222 is sleeved on the outside of the second adjusting screw 221. A second movable frame 223 is provided on one side of the second adjusting nut 222. A glue applicator 230 is provided on one side of the second movable frame 223.

[0055] Through the above technical solution, the first adjusting motor 213 drives the first adjusting screw 211 (let's say it's the X-axis) to rotate. The rotation of the first adjusting screw 211 forces the first adjusting nut 212 sleeved on it to produce linear motion along the X-axis. Since the first adjusting nut 212 is rigidly connected to the first movable frame 214, it drives the first movable frame 214 to translate along the X-axis direction, thereby driving the second adjusting frame 220 to translate along the X-axis direction (X-axis movement refers to movement along the width direction of the work frame 100). The second adjusting motor 224 drives the second adjusting screw 221 (let's say it's the Y-axis) to rotate. The rotation of the lead screw 221 forces the second adjusting nut 222 sleeved on it to produce linear motion along the Y-axis (movement in the Y-axis direction refers to movement along the height direction of the work frame 100). Since the second adjusting nut 222 is rigidly connected to the second movable frame 223, it drives the second movable frame 223 to translate along the Y-axis. The glue applicator 230 is fixed on the second movable frame 223, so that the glue applicator head 2591 moves with the second movable frame 223. When there are multiple screw holes 130 in the filter housing 120 and the spacing becomes larger, the glue applicator head 2591 can be precisely aligned with the new position by adjusting the position of the X-axis and Y-axis.

[0056] In addition, if the diameter of the screw hole 130 in the new batch becomes larger, the position of the X-axis and Y-axis is constantly changed and the rotating motor 251 drives the glue applicator 2591 to rotate through the reducer 252, so that the glue applicator 2591 can make circumferential motion along the screw hole 130 with a larger diameter.

[0057] Reference Figures 9-11 In some specific embodiments, the clamping part 300 includes a mounting base 310 disposed on the top of the work frame 100. The top of the mounting base 310 is provided with a mounting plate 311, the top of the mounting plate 311 is provided with a clamping plate 321, the top of the clamping plate 321 is provided with a plurality of clamping cylinders 330, the piston rod end of the clamping cylinder 330 is provided with a clamping block 331, the bottom of the clamping block 331 is provided with a clamping pressure block 332, and the clamping pressure block 332 is spaced apart from the clamping plate 321 to form a clamping interval 333.

[0058] Through the above technical solution, the clamping cylinders 330 (multiple) are vertically inverted with their piston rods extending downwards. The clamping block 331 is connected to the end of the piston rod to transmit driving force, while the clamping pressure block 332 is fixed to the bottom of the clamping block 331 and serves as the pressure head for the filter housing 120 workpiece. This allows the clamping pressure block 332 to cooperate with the clamping plate 321 to clamp the filter housing 120 when the position of the filter housing 120 is clamped at the clamping interval 333, thereby preventing the screw holes 130 of the filter housing 120 from shifting during the glue application process.

[0059] Reference Figures 9-11In some specific embodiments, a rotating disk 320 is rotatably connected to the top of the mounting plate 311, a clamping plate 321 is disposed on the top of the rotating disk 320, and a drive motor 312 is disposed at the bottom of the mounting plate 311, which drives the rotating disk 320 to rotate.

[0060] With the above technical solution, if there are screw holes 130 on both sides or around the filter housing 120, the drive motor 312 is started, and the drive motor 312 drives the rotating disk 320 to rotate, thereby causing the filter housing 120 in the clamp to change direction, so that the screw holes 130 in the new position can be coated with adhesive.

[0061] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

Claims

1. A high-sealing adhesive application device for screw holes, comprising a work frame, wherein the top of the work frame is provided with a clamping part for clamping a filter housing, characterized in that, It also includes an adhesive application section located at the top of the work frame. The adhesive application section includes an adhesive application frame located at the top of the work frame. The adhesive application frame has an installation cavity inside. The installation cavity has an adhesive filling cylinder inside. The adhesive filling cylinder has a piston cavity inside. The piston cavity has a piston connected to a pressure head inside. The bottom of the pressure head is separated from the bottom of the piston cavity to form an adhesive filling cavity. The top of the pressure head has a pressure rod. The bottom of the adhesive filling cylinder is connected to a delivery pipe that communicates with the adhesive filling cavity. An adhesive application head is rotatably connected to one side of the adhesive application frame, so that the adhesive application head faces the screw hole of the filter housing. One end of the delivery pipe communicates with the adhesive application head.

2. The high-sealing adhesive application device for screw holes according to claim 1, characterized in that, The installation cavity is equipped with a lifting plate. A rotating motor and a reducer are provided on one side of the lifting plate. The output end of the rotating motor is connected to the input end of the reducer. The rotating motor drives the reducer to drive. The glue applicator is located at the output end of the reducer. The output end of the reducer drives the glue applicator to rotate.

3. The high-sealing adhesive application device for screw holes according to claim 2, characterized in that, The reducer has an internal connecting pipe, one end of which is connected to one end of the conveying pipe, and the other end of which is connected to a connecting cylinder. One end of the glue applicator head is provided with a rotating cylinder, which is connected to the glue applicator head. The rotating cylinder is rotatably connected to one end of the connecting cylinder. The reducer drives the rotating cylinder to rotate. One end of the rotating cylinder has a rotating cavity, and the connecting cylinder passes through the interior of the rotating cavity. The rotating cavity and the connecting cylinder are rotatably connected, so that the rotating cavity and the interior of the connecting cylinder are in communication.

4. The high-sealing adhesive application device for screw holes according to claim 3, characterized in that, The rotating cavity has an inner guide groove inside, which is annular. The connecting cylinder has a guide protrusion formed on its outside, and the guide protrusion is rotatably connected to the inner guide groove.

5. The high-sealing adhesive application device for screw holes according to claim 4, characterized in that, A sealing ring is fitted around the outside of the connecting cylinder. The sealing ring is elastic, so that the sealing ring abuts against the inside of the rotating cavity. The sealing ring is located on the side of the guide ring away from the connecting tube.

6. The high-sealing adhesive application device for screw holes according to claim 1, characterized in that, An adhesive-pressing screw is rotatably connected inside the mounting cavity. The adhesive-pressing screw is vertically arranged, and an adhesive-pressing nut is fitted on the outside of the adhesive-pressing screw. One end of the adhesive-pressing screw is connected to one side of the adhesive-pressing nut. An adhesive-pressing motor is installed inside the mounting cavity, and the adhesive-pressing motor drives the adhesive-pressing screw to rotate.

7. The high-sealing adhesive application device for screw holes according to claim 2, characterized in that, A lifting screw is rotatably connected inside the mounting cavity. The lifting screw is vertically arranged, and a lifting nut is sleeved on the outside of the lifting screw. The lifting plate is connected to one side of the lifting nut. A lifting motor is installed inside the mounting cavity, and the lifting motor drives the lifting screw to rotate.

8. The high-sealing adhesive application device for screw holes according to claim 1, characterized in that, The top of the work frame is provided with a first adjusting frame, and a first adjusting screw is rotatably connected inside the first adjusting frame. A first adjusting motor that drives the first adjusting screw to rotate is provided on one side of the first adjusting frame. A first adjusting nut is sleeved on the outside of the first adjusting screw. A first movable frame is provided on one side of the first adjusting nut. A second adjusting frame is provided on the top of the first movable frame. A second adjusting screw is rotatably connected inside the second adjusting frame. A second adjusting motor that drives the second adjusting screw to rotate is provided on one side of the second adjusting frame. The first adjusting screw and the second adjusting screw are arranged in a cross shape. A second adjusting nut is sleeved on the outside of the second adjusting screw. A second movable frame is provided on one side of the second adjusting nut. The glue applicator is located on one side of the second movable frame.

9. The high-sealing adhesive application device for screw holes according to claim 1, characterized in that, The clamping part includes a mounting base frame located on the top of the work frame. The top of the mounting base frame is provided with a mounting plate, the top of the mounting plate is provided with a clamping plate, the top of the clamping plate is provided with a plurality of clamping cylinders, the piston rod end of the clamping cylinder is provided with a clamping block, the bottom of the clamping block is provided with a clamping pressure block, and the clamping pressure block is separated from the clamping plate to form a clamping interval.

10. A high-sealing adhesive application device for screw holes according to claim 9, characterized in that, A rotating disk is rotatably connected to the top of the mounting plate, a clamping plate is located on top of the rotating disk, and a drive motor is provided at the bottom of the mounting plate, which drives the rotating disk to rotate.

Images