Automatic glue sticking equipment for sponge brush

By designing an automatic glue-gluing device for sponge brushes, the fully automated assembly of sponge brushes and curved handles was achieved, solving the problem of low production efficiency caused by manual operation and improving the level of automation and production efficiency.

CN224483314UActive Publication Date: 2026-07-14CHANGZHOU XINBORUI MEDICAL PROD CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHANGZHOU XINBORUI MEDICAL PROD CO LTD
Filing Date
2025-07-24
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

The existing sponge brush and curved handle assembly process relies on manual operation, resulting in low production efficiency and failing to meet the needs of mass production.

Method used

An automatic sponge brush gluing device was designed, including a worktable, turntable, positioning fixture, curved handle feeding mechanism, curved handle conveying mechanism, gluing mechanism, sponge head feeding mechanism, sponge head conveying mechanism, unloading and conveying mechanism, and unloading conveying mechanism, to realize a fully automated assembly process.

Benefits of technology

It improves the automation level and production efficiency of the sponge brush assembly process, and saves labor costs.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224483314U_ABST
Patent Text Reader

Abstract

The utility model provides a kind of sponge brush automatic glue equipment, including workbench, its upper is equipped with carousel, carousel is equipped with positioning fixture;Bent handle feeding mechanism is transported to its end bent handle handling mechanism, bent handle handling mechanism is handled to positioning fixture on bent handle;Gluing mechanism is glued to bent handle top;Sponge head feeding mechanism is fed to sponge head handling mechanism and is transported to sponge head, sponge head handling mechanism is handled to the bent handle after gluing, and sponge head is bonded on bent handle and is made into sponge brush;Downstream handling mechanism is taken off from positioning fixture on sponge brush, and is placed to downstream conveying mechanism, by downstream conveying mechanism, sponge brush is transported to next process.The equipment is from feeding, bonding to downstream, and the whole assembly process is all completed by equipment automatically, improves the automation level and production efficiency, saves manual cost.
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Description

Technical Field

[0001] This utility model relates to the technical field of sponge brush production equipment, and in particular to an automatic adhesive bonding device for sponge brushes. Background Technology

[0002] Sponge brushes, also known as sponge sticks, toothpaste sticks, or oral hygiene sticks, are a type of medical product typically used for oral cleaning and disinfection. They are disposable, resulting in a large consumption volume. A curved-handle sponge brush consists of a curved handle 100 and a sponge head 200 bonded to the handle. Its production process mainly includes several key steps such as curved handle injection molding, sponge cutting and shaping, sponge and curved handle assembly, and packaging. Among these, the sponge and curved handle assembly process primarily involves bonding the sponge head and the curved handle together. Currently, this process is mostly done manually, which affects production efficiency and cannot meet the needs of mass production.

[0003] In view of this, it is necessary to provide a fully automated assembly device based on the existing sponge and bend handle assembly process to solve the above problems. Utility Model Content

[0004] The technical problem to be solved by this utility model is: in order to overcome the shortcomings of the prior art, this utility model provides an automatic adhesive bonding device for sponge brushes.

[0005] The technical solution adopted by this utility model to solve its technical problem is: an automatic adhesive applicator for a sponge brush, comprising a worktable, a turntable, a positioning fixture, a curved handle feeding mechanism, a curved handle conveying mechanism, an adhesive coating mechanism, a sponge head feeding mechanism, a sponge head conveying mechanism, a discharging and conveying mechanism, and a discharging and conveying mechanism, wherein...

[0006] A workbench, used for support, has a turntable on it, and multiple positioning fixtures are arranged circumferentially on the turntable;

[0007] The bending handle feeding mechanism is located on the outside of the workbench and is used to feed bending handles and transport them to the bottom of the bending handle conveying mechanism.

[0008] The bending handle conveying mechanism is set on the workbench and connected to the end of the bending handle feeding mechanism. It is used to transport the bending handle from the bending handle feeding mechanism to the positioning fixture of the turntable.

[0009] The glue application mechanism is set on the workbench and located downstream of the bending handle conveying mechanism station. It is used to apply glue to the top of the bending handle on the positioning fixture.

[0010] The sponge head feeding mechanism is located on the outside of the workbench and is used to feed sponge heads and transport them to the bottom of the sponge head conveying mechanism.

[0011] The sponge head conveying mechanism is set on the workbench and located downstream of the glue coating mechanism station. It is used to transport the sponge heads conveyed by the sponge head feeding mechanism to the bent handle of the positioning fixture after glue coating, and to glue the sponge heads to the bent handle to form a sponge brush.

[0012] The unloading and conveying mechanism is set on the workbench and located downstream of the sponge head conveying mechanism. It is used to remove the sponge brush from the positioning fixture and place it on the unloading and conveying mechanism.

[0013] The unloading conveying mechanism is located on the outside of the workbench, with one end extending below the unloading and handling mechanism, and is used to transport the sponge brush to the next process.

[0014] Furthermore, the bent-handle gripper mechanism, the glue application mechanism, the sponge head handling mechanism, and the unloading handling mechanism are arranged circumferentially around the turntable on the worktable.

[0015] Because different sizes or models of bent shanks have different shank lengths, the forward extension length and height of the shank end vary when the shank is embedded in the shank positioning groove of the positioning fixture. Therefore, to ensure applicability to various shank models and specifications without requiring replacement of the positioning fixture, the turntable is further provided with at least one clearance groove near the positioning fixture. The positioning fixture has multiple shank positioning grooves for embedding and positioning the bent shank. When there are multiple clearance grooves, they can have different depths and different distances from the positioning fixture.

[0016] Furthermore, the bending handle feeding mechanism includes a bending handle feeding vibratory feeder and a bending handle feeding guide rail. The bottom of the bending handle feeding vibratory feeder is fixed to the ground via a bracket. The bottom of the bending handle feeding guide rail is connected to the worktable via a first base, with one end connected to the discharge port of the bending handle feeding vibratory feeder and the other end extending below the bending handle conveying mechanism. A full-material stop sensor is provided on the end of the bending handle feeding guide rail near the bending handle feeding vibratory feeder. When the bending handle feeding guide rail is detected to be full, the full-material stop mechanism is activated. The sensor sends a signal to the controller, which then issues a stop signal to stop the machine. A limit cylinder is provided on the other end of the curved handle feeding guide rail. A material blocking cylinder is provided on the first base below the limit cylinder. The push rod of the material blocking cylinder faces the turntable, and a material blocking plate is provided at its end. A material blocking rod is provided on the side of the material blocking plate facing the curved handle feeding guide rail. The height of the material blocking rod is located above the curved handle at the end of the curved handle feeding guide rail. The material blocking cylinder can drive the material blocking plate and the material blocking rod to move towards the turntable.

[0017] Furthermore, the bending handle conveying mechanism includes a first column, the lower end of which is fixed relative to the worktable, and the front side of the upper end is connected to a first horizontal plate. A first transverse guide rail is provided vertically and horizontally on the front of the first horizontal plate. A first vertical plate is slidably connected to the first transverse guide rail by a slider. A first transverse cylinder is also provided above the first horizontal plate. The push rod of the first transverse cylinder is connected to the first vertical plate and can drive the first vertical plate to reciprocate along the first transverse guide rail. A first vertical guide rail is provided vertically and horizontally on the front side of the first vertical plate. A first adapter plate is connected to the first vertical guide rail by a slider. A first vertical cylinder is provided above the first vertical plate. The lower end of the push rod of the first vertical cylinder is connected to the first adapter plate and can drive the first adapter plate to reciprocate along the first vertical guide rail. Multiple sets of pneumatic grippers are provided in parallel below the first adapter plate. The pneumatic grippers are used to grab the bending handle from the bending handle feeding guide rail, transport it, and place it in the handle positioning groove of the positioning fixture. Since the distance between the curved handles on the curved handle feeding guide rail is different from the distance between the shank positioning slots on the positioning fixture (i.e., the former distance is smaller than the latter distance), in order to ensure that the pneumatic grippers can place the curved handles into the corresponding slots after gripping them, the distance between the pneumatic grippers needs to be adjusted. Therefore, the upper end of the pneumatic gripper is slidably connected to the distance guide rail on the lower surface of the first adapter plate via a distance slider. A distance cylinder is provided on one side of the first adapter plate. The push rod of the distance cylinder is connected to the distance slider closest to it. The first set of pneumatic grippers at the end away from the distance cylinder is fixed relative to the first connecting plate. The distance sliders of other adjacent pneumatic grippers are connected by equal-height screws.

[0018] The spacing between the pneumatic grippers is adjusted by a spacing cylinder driving a spacing slider and a height equalization screw. When gripping a bent shank on the bending shank feeding guide rail, the spacing cylinder pushes the pneumatic grippers closer together via the spacing slider, and then limits them to a minimum distance via the height equalization screw, which matches the distance between the grippers and the bent shank on the bending shank feeding guide rail. After gripping, during the handling process, the spacing cylinder actuates, driving the pneumatic grippers further apart via the spacing slider, increasing the distance. When the distance reaches the maximum length of the height equalization screw, i.e., when the distance matches the distance between the shank positioning groove, the spacing cylinder stops operating.

[0019] Furthermore, the glue application mechanism includes a second column, the lower end of which is fixed to the worktable, and the upper end of which is fixed to a first horizontal support plate. A second horizontal support plate is located below the first horizontal support plate, and a second linear module is fixed on it. A fifth horizontal guide rail is provided above the first horizontal support plate. The bottom of the horizontal plate bracket is slidably connected to the fifth horizontal guide rail via a slider. An opening is provided in the middle of the first horizontal support plate. The bottom of the horizontal plate bracket is connected to the slider of the second linear module from the opening. The second linear module can drive the horizontal plate bracket to move back and forth on the fifth horizontal guide rail. A second horizontal plate is fixed in front of the horizontal plate bracket. A second horizontal guide rail is provided in front of the second horizontal plate. The projections of the second horizontal guide rail and the fifth horizontal guide rail in the horizontal plane are perpendicular to each other. A second vertical plate is connected to the second horizontal guide rail via a slider. A first linear module is connected in front of the second vertical plate. A second adapter plate is slidably connected to the first linear module. A glue bucket and multiple sets of reverse-pull glue guns are provided on the second adapter plate. The glue bucket is inclined, that is, the bottom is higher than the outlet position, and it is connected to the reverse-pull glue gun. The reverse-pull glue gun is connected to an air source, and the glue dispensing is controlled by a solenoid valve.

[0020] During operation, the first linear module drives the glue bucket and the reverse-pull glue gun to move up and down. The second horizontal cylinder drives the first linear module to move left and right, thereby driving the glue bucket and the reverse-pull glue gun to move left and right. The second linear module drives the horizontal plate support, the second horizontal plate and the mechanism connected to the second horizontal plate to move back and forth synchronously, thereby realizing the action of applying glue and scraping glue on the bent handle.

[0021] Furthermore, the sponge head feeding mechanism includes a sponge head feeding vibratory plate, a sponge head feeding guide rail, a sponge head positioning plate, a third linear module, and a fifth column. The bottom of the sponge head feeding vibratory plate is fixed to the ground through a bracket. The bottom of the sponge head feeding guide rail is connected to the workbench through a vibratory feeding seat, and one end of the guide rail is connected to the outlet of the sponge head feeding vibratory plate. The other end extends to one side of the sponge head positioning plate in front of the sponge head conveying mechanism. The upper part of the sponge head positioning plate is provided with multiple side-opening sponge head positioning grooves for accommodating sponge heads and facilitating the sponge head conveying mechanism to pick them up. The bottom is provided with a fifth column and a third linear module. The third linear module is connected to the workbench. The lower end of the fifth column is connected to the slider of the third linear module, and the upper end is connected to the sponge head positioning plate.

[0022] The third linear module drives the fifth column and the sponge head positioning plate to move left and right, with its movement direction perpendicular to the conveying direction of the sponge head feeding guide rail. Each movement covers the distance of one sponge positioning slot, aligning the end of the sponge head feeding guide rail with each sponge positioning slot, allowing the sponge heads to be conveyed one by one into the slot. Furthermore, to ensure the sponge heads can smoothly enter the sponge positioning slots from the feeding guide rail, a sponge pressure plate is provided at the end of the feeding guide rail, positioned above the sponge positioning slot. During the entry of the sponge heads into the slots, the pressure plate restricts their movement, preventing them from bouncing and falling. Additionally, a positioning slot baffle is provided on one side of the opening of each sponge positioning slot, located on the right side of the feeding guide rail (i.e., the side closest to the sponge head conveying mechanism) and parallel to the movement direction of the sponge head positioning plate. When the sponge head positioning plate moves laterally, the opening of the sponge positioning slot containing the sponge head is sequentially blocked by the positioning slot baffle, ensuring the sponge head remains within the slot.

[0023] Furthermore, the sponge head handling mechanism includes a third column, the lower end of which is fixed to the worktable, and the upper end of which is connected to a third horizontal plate. A third horizontal guide rail is provided parallel to each other on the front of the third horizontal plate. A third vertical plate is connected to the third guide rail via a slider. A third horizontal cylinder is located above the third horizontal plate, and its push rod end is connected to the third vertical plate, enabling the third vertical plate to move along the third horizontal guide rail. A third vertical guide rail is provided parallel to each other on the front of the third vertical plate, and a third adapter plate is connected to the third vertical guide rail via a slider. A third vertical cylinder is located at the top of the third vertical plate, and its push rod end is connected to the third adapter plate, enabling the third adapter plate to move up and down along the third vertical guide rail. Multiple sets of handling needles are arranged horizontally below the third adapter plate. A needle removal plate cylinder is located in front of the third adapter plate. A needle removal plate is connected to the push rod at the lower end of the needle removal plate cylinder. The needle removal plate has through holes corresponding to the positions of the handling needles, allowing the handling needles to pass through the through holes. The needle removal plate cylinder can also drive the needle removal plate to move up and down.

[0024] During operation: The sponge head is conveyed to the sponge head positioning plate via the sponge head feeding vibratory plate and sponge head feeding guide rail. The third horizontal cylinder actuates, driving the transfer needle to move above the sponge head on the sponge head positioning plate. The third vertical cylinder actuates, driving the transfer needle downward to insert it into the sponge head. Then, the third vertical cylinder lifts up, and the third horizontal cylinder actuates to push it to the right, moving the sponge head above the positioning fixture. Then, the third vertical cylinder lowers, placing the sponge head on the upper end of the glued curved handle. Then, the third vertical cylinder lifts up, driving the transfer needle upward, while the needle removal plate cylinder pushes down, causing the needle removal plate to press against the sponge head. At this time, the transfer needle is removed from the through hole of the needle removal plate without lifting the sponge head. At the same time, under the downward pressure of the needle removal plate, the sponge head and the curved handle can be reliably bonded.

[0025] Furthermore, the material handling mechanism includes a fourth column, the bottom of which is connected to the worktable, and a fourth horizontal plate connected to its upper front side. The fourth horizontal plate is provided with a fourth horizontal guide rail that runs parallel vertically. A fourth vertical plate is connected to the fourth horizontal guide rail via a slider. A fourth horizontal cylinder is located above the fourth horizontal plate, and the push rod of the fourth horizontal cylinder is connected to the fourth vertical plate, enabling it to move along the fourth horizontal guide rail. A fourth vertical cylinder is located in front of the fourth vertical plate. The surface is provided with a fourth vertical guide rail, on which a feeding slider is slidably connected. The lower end of the feeding slider is connected to the push rod of the fourth vertical cylinder through a fifth adapter plate. The fourth vertical cylinder drives the feeding slider to slide up and down on the fourth vertical guide rail. The lower end of the feeding slider is also connected to the fourth adapter plate, which extends forward. The upper part of the extended end is provided with a feeding cylinder, and the lower part of the extended end is provided with a feeding clamping finger. The feeding cylinder is connected to the feeding clamping finger and can drive the opening and closing of the feeding clamping finger.

[0026] During operation, the turntable moves the positioning fixture with the bonded sponge brush to the unloading station. The fourth horizontal cylinder pushes the fourth vertical plate outward, thereby moving the unloading clamping fingers above the positioning fixture. Then, the fourth vertical cylinder starts and moves downward, causing the unloading slider to move downward, so that the sponge head of the sponge brush on the positioning fixture is between the front and rear unloading clamping fingers. At this time, the unloading cylinder starts and drives the unloading clamping fingers to retract, clamping the sponge head. Then, the fourth vertical cylinder lifts, and through the unloading slider and the fourth adapter plate, drives the unloading cylinder and the unloading clamping fingers to move upward, thereby removing the sponge brush from the shank positioning groove of the positioning fixture. Then, the fourth horizontal cylinder retracts, and through the fourth vertical plate, drives the unloading clamping fingers to move above the unloading conveyor mechanism. Then, the unloading cylinder drives the unloading clamping fingers to open, placing the sponge brush on the conveyor belt, which then transports it to the downstream process.

[0027] Furthermore, the feeding and conveying mechanism includes a conveying support, a conveyor belt, a synchronous belt, and a conveying motor. A conveying roller is provided at each of the two ends above the conveying support. The conveyor belt is driven and connected to the conveying roller, and one of the conveying rollers is driven and connected to the conveying motor through the synchronous belt. The conveying motor is fixedly connected to the conveying support below the conveyor belt.

[0028] The beneficial effects of this utility model are: the automatic adhesive bonding equipment for sponge brushes provided by this utility model can automatically complete the entire assembly process from feeding and bonding to unloading, thereby improving the level of automation and production efficiency and saving labor costs. Attached Figure Description

[0029] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0030] Figure 1 This is a three-dimensional structural diagram of the automatic adhesive applicator for sponge brushes according to this utility model.

[0031] Figure 2 This is a top view of the automatic adhesive applicator for sponge brushes according to this utility model.

[0032] Figure 3 This is a structural diagram of the turntable and positioning fixture.

[0033] Figure 4 This is a schematic diagram of the positioning fixture.

[0034] Figure 5 This is a structural diagram of the curved handle feeding guide rail and the curved handle conveying mechanism.

[0035] Figure 6 This is a schematic diagram of the curved handle conveying mechanism (spacing adjustment).

[0036] Figure 7 This is a structural diagram of the glue application mechanism and the sponge head handling mechanism.

[0037] Figure 8 This is a schematic diagram of the front structure of the glue application mechanism.

[0038] Figure 9 This is a schematic diagram of the structure at the rear of the glue application mechanism.

[0039] Figure 10 This is a structural diagram of the sponge head feeding mechanism and the sponge head handling mechanism.

[0040] Figure 11 This is a partially enlarged structural diagram of the sponge head conveying mechanism (conveying needle).

[0041] Figure 12 This is a structural diagram of the unloading and handling mechanism and the unloading conveying mechanism.

[0042] Figure 13 This is a structural diagram of the material handling mechanism.

[0043] Figure 14 This is a schematic diagram of the material feeding and conveying mechanism.

[0044] In the diagram: 100, bent handle; 200, sponge head; 1, worktable; 2, turntable; 2.1, clearance groove; 3, positioning fixture; 3.1, handle positioning groove; 4, bent handle feeding mechanism; 4.1, bent handle feeding vibratory feeder; 4.2, bent handle feeding guide rail; 4.3, full material stop sensor; 4.4, limit cylinder; 4.5, material blocking cylinder; 4.6, material blocking plate; 4.7, material blocking rod; 4.8, first base; 5, bent handle conveying mechanism; 5.1, first column; 5.2, first horizontal plate; 5.3, first horizontal guide rail; 5.4, first horizontal cylinder; 5.5, first vertical plate; 5.6, first vertical guide rail; 5.7, first... 5.8 Vertical cylinder, 5.9 First adapter plate, 5.10 Pneumatic gripper, 5.11 Spacing cylinder, 5.12 Spacing guide rail, 5.13 Spacing slider, 5.14 Height equalizing screw; 6. Glue application mechanism, 6.1 Second column, 6.2 Second horizontal plate, 6.3 Second horizontal guide rail, 6.4 Second horizontal cylinder, 6.5 Second vertical plate, 6.6 First linear module, 6.7 Second adapter plate, 6.8 Glue bucket, 6.9 Reverse suction glue gun, 6.10 First horizontal support plate, 6.11 Second horizontal support plate, 6.13 Second linear module, 6.14 Horizontal plate bracket, 6.15 Fifth horizontal guide rail 7. Sponge head feeding mechanism, 7.1 Sponge head feeding vibratory plate, 7.2 Sponge head feeding guide rail, 7.3 Sponge head positioning plate, 7.4 Fifth column, 7.5 Third linear module, 7.6 Vibratory feeding seat, 7.7 Sponge pressure plate, 7.8 Positioning groove stop bar; 8. Sponge head conveying mechanism, 8.1 Third column, 8.2 Third horizontal plate, 8.3 Third horizontal guide rail, 8.4 Third horizontal cylinder, 8.5 Third vertical plate, 8.6 Third vertical guide rail, 8.7 Third vertical cylinder, 8.8 Third adapter plate, 8.9 Needle removal plate cylinder, 8.10 Needle removal plate, 8.11 Conveying needle. 8.12. Needle mounting block; 9. Material unloading and conveying mechanism; 9.1. Fourth column; 9.2. Fourth horizontal plate; 9.3. Fourth horizontal guide rail; 9.4. Fourth horizontal cylinder; 9.5. Fourth vertical plate; 9.6. Fourth vertical guide rail; 9.7. Fourth vertical cylinder; 9.8. Material unloading slider; 9.9. Material unloading cylinder; 9.10. Fourth transfer plate; 9.11. Material unloading clamp; 9.12. Fifth transfer plate; 10. Material unloading and conveying mechanism; 10.1. Conveying bracket; 10.2. Conveying belt; 10.3. Synchronous belt; 10.4. Conveying roller; 10.5. Conveying motor; 10.6. Motor controller; 11. Operation panel. Detailed Implementation

[0045] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0046] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," 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, and 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," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0047] 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 or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0048] like Figure 1 and Figure 2As shown, this utility model discloses an automatic sponge brush adhesive device, comprising a worktable 1, a turntable 2, positioning fixtures 3, a curved handle feeding mechanism 4, a curved handle conveying mechanism 5, an adhesive application mechanism 6, a sponge head feeding mechanism 7, a sponge head conveying mechanism 8, a discharging and conveying mechanism 9, and a discharging and conveying mechanism 10. The curved handle gripper mechanism, adhesive application mechanism 6, sponge head conveying mechanism 8, and discharging and conveying mechanism 9 are arranged circumferentially around the turntable 2 on the worktable 1. The worktable 1 provides support and has the turntable 2 mounted on it. Multiple positioning fixtures 3 are arranged circumferentially on the turntable 2. In this embodiment, the worktable 1 includes an external housing, inside which is an air tank providing air for pneumatic components, as well as circuit boards and electrical components for control. A servo motor and a reducer are mounted under the turntable 2 to drive its rotation. The workbench 1 is also equipped with an operation panel 11, which is connected to the workbench 1 via a support column. In addition, the workbench 1 also has components such as a frequency converter and solenoid valve that work with electrical components; these are standard control components and will not be described in detail here. A bending handle feeding mechanism 4 is located on the outside of the workbench 1 and is used to feed the bending handle 100 and transport it below the bending handle conveying mechanism 5. The bending handle conveying mechanism 5 is located on the workbench 1 and is connected to the end of the bending handle feeding mechanism 4, used to transport the bending handle 100 from the bending handle feeding mechanism 4 to the positioning fixture 3 of the turntable 2. A glue application mechanism 6 is located on the workbench 1 and downstream of the bending handle conveying mechanism 5, used to apply glue to the top of the bending handle on the positioning fixture 3. A sponge head feeding mechanism 7 is located on the outside of the workbench 1 and is used to feed the sponge head 200 and transport it below the sponge head conveying mechanism 8. The sponge head conveying mechanism 8 is set on the workbench 1 and located downstream of the glue coating mechanism 6. It is used to transport the sponge head 200 conveyed by the sponge head feeding mechanism 7 to the bent handle of the positioning fixture 3 after glue coating, and to bond the sponge head 200 to the bent handle to form a sponge brush. The unloading conveying mechanism 9 is set on the workbench 1 and located downstream of the sponge head conveying mechanism 8. It is used to remove the sponge brush from the positioning fixture 3 and place it on the unloading conveying mechanism 10. The unloading conveying mechanism 10 is set on the outside of the workbench 1 and extends to the bottom of the unloading conveying mechanism 9. It is used to convey the sponge brush to the next process.

[0049] like Figure 3 and Figure 4As shown, preferably, to ensure efficiency, the number of positioning fixtures 3 is the same as the number of workstations around the turntable 2. In this embodiment, there are 4 workstations around the turntable 2, therefore, 4 positioning fixtures 3 are provided, corresponding to the 4 workstations respectively. The 4 positioning fixtures 3 are evenly distributed along the turntable 2, that is, adjacent positioning fixtures 3 are distributed at a 90° angle. Since the handle lengths of different sizes or models of bent handles are different, when the bent handle is embedded in the handle positioning groove 3.1 of the positioning fixture 3, the length and height of the bent handle end extending forward are different. Therefore, in order to ensure that it can be used for various models and specifications of bent handles without replacing the positioning fixtures 3, at least one clearance groove 2.1 is provided on the turntable 2 near the positioning fixture 3, and the positioning fixture 3 is provided with multiple handle positioning grooves 3.1 for embedding and positioning the bent handle. When there are multiple clearance grooves 2.1, the clearance grooves 2.1 can have different depths and different distances from the positioning fixture 3.

[0050] like Figure 2 and Figure 5 As shown, the bending handle feeding mechanism 4 includes a bending handle feeding vibratory plate 4.1 and a bending handle feeding guide rail 4.2. The bottom of the bending handle feeding vibratory plate 4.1 is fixed to the ground through a bracket. The bottom of the bending handle feeding guide rail 4.2 is connected to the workbench 1 through a first base 4.8, and one end of the guide rail is connected to the discharge port of the bending handle feeding vibratory plate 4.1, while the other end extends to the bottom of the bending handle conveying mechanism 5. A full-material stop sensor 4.3 is provided on the end of the bending handle feeding guide rail 4.2 near the bending handle feeding vibratory plate 4.1. When the bending handle feeding guide rail 4.2 is detected to be full, the full-material stop sensor 4.3 sends a signal to the controller. A signal is sent, and the controller issues a stop signal to stop the machine. A limit cylinder 4.4 is provided on the other end of the curved handle feeding guide rail 4.2. A material blocking cylinder 4.5 is provided on the first base 4.8 below the limit cylinder 4.4. The push rod of the material blocking cylinder 4.5 faces the turntable 2, and a material blocking plate 4.6 is provided at its end. A material blocking rod 4.7 is provided on the side of the material blocking plate 4.6 facing the curved handle feeding guide rail 4.2. The height of the material blocking rod 4.7 is located above the curved handle at the end of the curved handle feeding guide rail 4.2. The material blocking cylinder 4.5 can drive the material blocking plate 4.6 and the material blocking rod 4.7 to move towards the turntable 2.

[0051] like Figure 5 and Figure 6As shown, the bending handle conveying mechanism 5 includes a first column 5.1, the lower end of which is fixed relative to the worktable 1, and the front side of the upper end is connected to a first horizontal plate 5.2. A first transverse guide rail 5.3 is provided vertically and horizontally on the front of the first horizontal plate 5.2. A first vertical plate 5.5 is slidably connected to the first transverse guide rail 5.3 via a slider. A first transverse cylinder 5.4 is also provided above the first horizontal plate 5.2. The push rod of the first transverse cylinder 5.4 is connected to the first vertical plate 5.5, which can drive the first vertical plate 5.5 to reciprocate along the first transverse guide rail 5.3. The front side of the first vertical plate 5.5 is vertically... A first vertical guide rail 5.6 is provided in parallel. A first adapter plate 5.8 is connected to the first vertical guide rail 5.6 via a slider. A first vertical cylinder 5.7 is provided above the first vertical plate 5.7. The lower end of the push rod of the first vertical cylinder 5.7 is connected to the first adapter plate 5.8, which can drive the first adapter plate 5.8 to reciprocate along the first vertical guide rail 5.6. Multiple sets of pneumatic grippers 5.9 are provided in parallel below the first adapter plate 5.8. The pneumatic grippers 5.9 are used to grab the curved handle from the curved handle feeding guide rail 4.2, transport it and place it in the handle positioning groove 3.1 of the positioning fixture 3. Since the distance between the curved handles on the curved handle feeding guide rail 4.2 is different from the distance between the shank positioning grooves 3.1 on the positioning fixture 3 (i.e., the former distance is smaller than the latter distance), in order to ensure that the pneumatic grippers 5.9 can be placed in the corresponding grooves after gripping the curved handles, the distance between the pneumatic grippers 5.9 needs to be adjusted. Therefore, the upper end of the pneumatic grippers 5.9 is slidably connected to the spacing guide rail 5.11 on the lower surface of the first adapter plate 5.8 through the spacing slider 5.12, and a spacing cylinder 5.10 is provided on one side of the first adapter plate 5.8. The push rod of the spacing cylinder 5.10 is connected to the spacing slider 5.12 close to it. The first set of pneumatic grippers 5.9 at the end away from the spacing cylinder 5.10 is fixed relative to the first connecting plate. The spacing sliders 5.12 of other adjacent pneumatic grippers 5.9 are connected by equal height screws 5.13.

[0052] The spacing between the pneumatic grippers 5.9 is adjusted by the spacing cylinder 5.10 driving the spacing slider 5.12 and the equalizing screw 5.13. When gripping the curved handle on the curved handle feeding guide rail 4.2, the spacing cylinder 5.10 pushes the pneumatic grippers 5.9 closer together through the spacing slider 5.12, and limits them to the minimum distance by the equalizing screw 5.13, which is the distance matching the curved handle on the curved handle feeding guide rail 4.2. After gripping, during the handling process, the spacing cylinder 5.10 actuates, driving the pneumatic grippers 5.9 further apart through the spacing slider 5.12, increasing the distance. When the distance reaches the maximum length of the equalizing screw 5.13, that is, when the distance matches the distance between the handle positioning groove 3.1, the spacing cylinder 5.10 stops actuating.

[0053] like Figures 7-9As shown, the adhesive application mechanism 6 includes a second column 6.1, the lower end of which is fixed to the workbench 1, and the upper end of which is fixed to a first horizontal support plate 6.10. A second horizontal support plate 6.11 is located below the first horizontal support plate 6.10, and a second linear module 6.13 is fixed on it. A fifth horizontal guide rail 6.15 is provided above the first horizontal support plate 6.10, and the bottom of the horizontal plate bracket 6.14 is slidably connected to the fifth horizontal guide rail 6.15 via a slider. The first horizontal support plate 6.10 has an opening in the middle, and the bottom of the horizontal plate bracket 6.14 is connected to the slider of the second linear module 6.13 from the opening. The second linear module 6.13 can drive the horizontal plate bracket 6.14 to move on the fifth horizontal guide rail. The guide rail 6.15 moves back and forth. A second horizontal plate 6.2 is fixed to the front of the horizontal plate bracket 6.14. A second horizontal guide rail 6.3, which is parallel to the ground, is located in front of the second horizontal plate 6.2. The projections of the second horizontal guide rail 6.3 and the fifth horizontal guide rail 6.15 in the horizontal plane are perpendicular to each other. A second vertical plate 6.5 is connected to the second horizontal guide rail 6.3 via a slider. A first linear module 6.6 is connected to the front of the second vertical plate 6.5. A second adapter plate 6.7 is slidably connected to the first linear module 6.6. The second adapter plate 6.7 is equipped with a glue tank 6.8 and multiple sets of reverse-pull glue guns 6.9. The glue tank 6.8 is tilted, with its bottom higher than the outlet position, and is connected to the reverse-pull glue guns 6.9. The reverse-pull glue guns 6.9 are connected to an air source and the glue dispensing is controlled by a solenoid valve.

[0054] In this embodiment, the linear module is composed of a lead screw and a guide rail, and is driven by a motor. During operation, the first linear module 6.6 drives the glue tank 6.8 and the reverse-pull glue gun 6.9 to move up and down. The second horizontal cylinder 6.4 drives the first linear module 6.6 to move left and right, thereby driving the glue tank 6.8 and the reverse-pull glue gun 6.9 to move left and right. The second linear module 6.13 drives the horizontal plate support 6.14, the second horizontal plate 6.2, and the mechanism connected to the second horizontal plate 6.2 to move back and forth synchronously, thereby realizing the action of applying glue and scraping glue on the curved handle.

[0055] like Figure 10As shown, the sponge head feeding mechanism 7 includes a sponge head feeding vibratory plate 7.1, a sponge head feeding guide rail 7.2, a sponge head positioning plate 7.3, a third linear module 7.5, and a fifth column 7.4. The bottom of the sponge head feeding vibratory plate 7.1 is fixed to the ground through a bracket. The bottom of the sponge head feeding guide rail 7.2 is connected to the worktable 1 through a vibratory feeding seat 7.6, and one end of the guide rail is connected to the outlet of the sponge head feeding vibratory plate 7.1, while the other end extends to one side of the sponge head positioning plate 7.3 in front of the sponge head conveying mechanism 8. The upper end of the sponge head positioning plate 7.3 is provided with multiple side-opening sponge head positioning grooves for accommodating sponge heads, which facilitates the sponge head conveying mechanism 8 in picking them up. The bottom is provided with a fifth column 7.4 and a third linear module 7.5. The third linear module 7.5 is connected to the worktable 1. The lower end of the fifth column 7.4 is connected to the slider of the third linear module 7.5, and the upper end is connected to the sponge head positioning plate 7.3.

[0056] The third linear module 7.5 can drive the fifth column 7.4 and the sponge head positioning plate 7.3 to move left and right, and its movement direction is perpendicular to the conveying direction of the sponge head feeding guide rail 7.2. Each movement is the distance of one sponge positioning slot, so that the end of the sponge head feeding guide rail 7.2 is aligned with the sponge positioning slot one by one, and the sponge heads are conveyed into the sponge positioning slot one by one. Furthermore, in order to ensure that the sponge heads can smoothly enter the sponge positioning slot from the sponge head feeding guide rail 7.2, a sponge pressure plate 7.7 is also provided at the end of the sponge head feeding guide rail 7.2. The height of the sponge pressure plate 7.7 is located above the sponge positioning slot. During the process of the sponge head entering the sponge positioning slot, the sponge pressure plate 7.7 can restrict the sponge head and prevent the sponge from bouncing and falling. Furthermore, a positioning groove baffle 7.8 is provided on one side of the opening of the sponge positioning groove, and the positioning groove baffle 7.8 is located on the right side of the sponge head feeding guide rail 7.2 (i.e. the side close to the sponge head conveying mechanism 8), and is parallel to the movement direction of the sponge head positioning plate 7.3. When the sponge head positioning plate 7.3 moves laterally, the opening of the sponge positioning groove on which the sponge head is placed is blocked by the positioning groove baffle 7.8 in sequence, ensuring that the sponge head is in the sponge positioning groove.

[0057] like Figure 10 and Figure 11As shown, the sponge head handling mechanism 8 includes a third column 8.1, the lower end of which is fixed to the workbench 1, and the upper end of which is connected to a third horizontal plate 8.2. A third horizontal guide rail 8.3 is provided vertically and horizontally on the front of the third horizontal plate 8.2. A third vertical plate 8.5 is connected to the third guide rail via a slider. A third horizontal cylinder 8.4 is located above the third horizontal plate 8.2, and its push rod end is connected to the third vertical plate 8.5, enabling the third vertical plate 8.5 to move along the third horizontal guide rail 8.3. A third vertical guide rail 8.6 is provided vertically and horizontally on the front of the third vertical plate 8.5. A third adapter plate 8.8 is connected to the third vertical guide rail 8.6 via a slider. A cylinder 8.7 is located at the top of the third vertical plate 8.5, and its push rod is connected to the third adapter plate 8.8 at its lower end. It can drive the third adapter plate 8.8 to move up and down along the third vertical guide rail 8.6. A needle mounting block 12 is provided below the third adapter plate 8.8, and multiple sets of transport needles 8.11 are arranged horizontally below the needle mounting block 12. A needle removal plate cylinder 8.9 is provided in front of the third adapter plate 8.8. A needle removal plate 8.10 is connected to the push rod at the lower end of the needle removal plate cylinder 8.9. The needle removal plate 8.10 has through holes corresponding to the positions of the transport needles 8.11. The transport needles 8.11 can pass through the through holes, and the needle removal plate cylinder 8.9 can drive the needle removal plate 8.10 to move up and down.

[0058] During operation: The sponge head is conveyed to the sponge head positioning plate 73 via the sponge head feeding vibratory plate 7.1 and the sponge head feeding guide rail 7.2. The third horizontal cylinder 8.4 actuates, driving the transfer needle 8.11 to move above the sponge head on the sponge head positioning plate 7.3. The third vertical cylinder 8.7 actuates, driving the transfer needle 8.11 downward, causing the transfer needle 8.11 to penetrate into the sponge head. Then, the third vertical cylinder 8.7 lifts up, and the third horizontal cylinder 8.4 actuates to push to the right, moving the sponge head to... Above the positioning fixture 3, the third vertical cylinder 8.7 falls to place the sponge head on the upper end of the bent handle after applying glue. Then, the third vertical cylinder 8.7 is lifted, causing the transport needle 8.11 to move upward. At the same time, the needle removal plate cylinder 8.9 is pushed downward, causing the needle removal plate 8.10 to press on the sponge head. At this time, the transport needle 8.11 is removed from the through hole of the needle removal plate 8.10 without lifting the sponge head. Meanwhile, under the downward pressure of the needle removal plate 8.10, the sponge head and the bent handle can be reliably bonded.

[0059] like Figure 12 and Figure 13As shown, the material handling mechanism 9 includes a fourth column 9.1, the bottom of which is connected to the workbench 1, and a fourth horizontal plate 9.2 connected to its upper front side. The fourth horizontal plate 9.2 has a fourth horizontal guide rail 9.3 running parallel vertically. A fourth vertical plate 9.5 is connected to the fourth horizontal guide rail 9.3 via a slider. A fourth horizontal cylinder 9.4 is located above the fourth horizontal plate 9.2. The push rod of the fourth horizontal cylinder 9.4 is connected to the fourth vertical plate 9.5, enabling it to move along the fourth horizontal guide rail 9.3. A fourth vertical cylinder 9.7 is located in front of the fourth vertical plate 9.5, and a vertical... A parallel fourth vertical guide rail 9.6 is provided, on which a feeding slider 9.8 is slidably connected. The lower end of the feeding slider 9.8 is connected to the push rod of the fourth vertical cylinder 9.7 via a fifth adapter plate 9.12. The fourth vertical cylinder 9.7 drives the feeding slider 9.8 to slide up and down on the fourth vertical guide rail 9.6. The lower end of the feeding slider 9.8 is also connected to a fourth adapter plate 9.10, which extends forward. A feeding cylinder 9.9 is provided on the upper part of the extended end, and a feeding clamp finger 9.11 is provided on the lower part of the extended end. The feeding cylinder 9.9 is connected to the feeding clamp finger 9.11 and can drive the opening and closing of the feeding clamp finger 9.11.

[0060] During operation, the turntable 2 moves the positioning fixture 3, which has a bonded sponge brush, to the unloading station. The fourth horizontal cylinder 9.4 pushes the fourth vertical plate 9.5 outward, thereby moving the unloading clamping finger 9.11 above the positioning fixture 3. Then, the fourth vertical cylinder 9.7 is activated, moving downward to move the unloading slider 9.8 downward, so that the sponge head of the sponge brush on the positioning fixture 3 is between the front and rear unloading clamping fingers 9.11. At this time, the unloading cylinder 9.9 is activated, driving the unloading clamping fingers 9.11 to retract and clamp the sponge head. Then, the fourth vertical cylinder... Cylinder 9.7 is raised, and the feeding slider 9.8 and the fourth adapter plate 9.10 drive the feeding cylinder 9.9 and the feeding clamp finger 9.11 to move upward, thereby removing the sponge brush from the shank positioning groove 3.1 of the positioning fixture 3. Then, the fourth transverse cylinder 9.4 retracts, and the feeding clamp finger 9.11 moves to the top of the feeding conveyor mechanism 10 through the fourth vertical plate 9.5. Then, the feeding cylinder 9.9 drives the feeding clamp finger 9.11 to open, placing the sponge brush on the conveyor belt 10.2, which then transports it to the downstream process.

[0061] like Figure 12 and Figure 14As shown, the feeding and conveying mechanism 10 includes a conveying support 10.1, a conveyor belt 10.2, a synchronous belt 10.3, and a conveying motor. A conveying roller 10.4 is respectively provided at both ends above the conveying support 10.1. The conveyor belt 10.2 is drivenly connected to the conveying roller 10.4, and one of the conveying rollers 10.4 is drivenly connected to the conveying motor 10.5 through the synchronous belt 10.3. The conveying motor 10.5 is fixedly connected to the conveying support 10.1 below the conveyor belt 10.2, and its speed is controlled by a motor controller 10.6.

[0062] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the scope of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. An automatic adhesive applicator for a sponge brush, characterized in that: It includes a worktable, turntable, positioning fixture, curved handle feeding mechanism, curved handle conveying mechanism, glue application mechanism, sponge head feeding mechanism, sponge head conveying mechanism, unloading and conveying mechanism, and unloading conveying mechanism. A workbench, used for support, has a turntable on it, and multiple positioning fixtures are arranged circumferentially on the turntable; The bending handle feeding mechanism is located on the outside of the workbench and is used to feed bending handles and transport them to the bottom of the bending handle conveying mechanism. The bending handle conveying mechanism is set on the workbench and connected to the end of the bending handle feeding mechanism. It is used to transport the bending handle from the bending handle feeding mechanism to the positioning fixture of the turntable. The glue application mechanism is set on the workbench and located downstream of the bending handle conveying mechanism station. It is used to apply glue to the top of the bending handle on the positioning fixture. The sponge head feeding mechanism is located on the outside of the workbench and is used to feed sponge heads and transport them to the bottom of the sponge head conveying mechanism. The sponge head conveying mechanism is set on the workbench and located downstream of the glue coating mechanism station. It is used to transport the sponge heads conveyed by the sponge head feeding mechanism to the bent handle of the positioning fixture after glue coating, and to glue the sponge heads to the bent handle to form a sponge brush. The unloading and conveying mechanism is set on the workbench and located downstream of the sponge head conveying mechanism. It is used to remove the sponge brush from the positioning fixture and place it on the unloading and conveying mechanism. The unloading conveying mechanism is located on the outside of the workbench, with one end extending below the unloading and handling mechanism, and is used to transport the sponge brush to the next process. Furthermore, the bent-handle gripper mechanism, the glue application mechanism, the sponge head handling mechanism, and the unloading handling mechanism are arranged circumferentially around the turntable on the worktable.

2. The automatic adhesive applicator for sponge brushes as described in claim 1, characterized in that: The turntable has at least one clearance groove near the positioning fixture, and the positioning fixture has multiple handle positioning grooves for embedding and positioning the bent handle.

3. The automatic adhesive applicator for sponge brushes as described in claim 1, characterized in that: The curved handle feeding mechanism includes a curved handle feeding vibratory plate and a curved handle feeding guide rail. The bottom of the curved handle feeding vibratory plate is fixed to the ground through a bracket. The bottom of the curved handle feeding guide rail is connected to the workbench through a first base, and one end of the guide rail is connected to the discharge port of the curved handle feeding vibratory plate, while the other end extends to the bottom of the curved handle conveying mechanism. A full material stop sensor is provided on one end of the curved handle feeding guide rail near the curved handle feeding vibratory plate, and a limit cylinder is provided on the other end of the guide rail. A material blocking cylinder is provided on the first base below the limit cylinder. The push rod of the material blocking cylinder faces the turntable, and a material blocking plate is provided at its end. A material blocking rod is provided on the side of the material blocking plate facing the curved handle feeding guide rail, and the height of the material blocking rod is located above the curved handle at the end of the curved handle feeding guide rail. The material blocking cylinder can drive the material blocking plate and the material blocking rod to move towards the turntable.

4. The automatic adhesive applicator for sponge brushes as described in claim 1, characterized in that: The bending handle conveying mechanism includes a first column, the lower end of which is fixed relative to the worktable, and the front side of the upper end is connected to a first horizontal plate. A first transverse guide rail is provided vertically parallel to the front of the first horizontal plate. A first vertical plate is slidably connected to the first transverse guide rail via a slider. A first transverse cylinder is also provided above the first horizontal plate. The push rod of the first transverse cylinder is connected to the first vertical plate, enabling the first vertical plate to reciprocate along the first transverse guide rail. A first vertical guide rail is provided vertically parallel to the front of the first vertical plate. A first adapter plate is connected to the first vertical guide rail via a slider. A first... A vertical cylinder is provided. The lower end of the push rod of the first vertical cylinder is connected to the first adapter plate, which can drive the first adapter plate to reciprocate along the first vertical guide rail. Multiple sets of pneumatic grippers are arranged in parallel below the first adapter plate. The upper end of the pneumatic grippers is slidably connected to the spacing guide rail on the lower surface of the first adapter plate through a spacing slider. A spacing cylinder is provided on one side of the first adapter plate. The push rod of the spacing cylinder is connected to the spacing slider closest to it. The first set of pneumatic grippers at the end away from the spacing cylinder is fixed relative to the first connecting plate. The spacing sliders of other adjacent pneumatic grippers are connected by equal-height screws.

5. The automatic adhesive applicator for sponge brushes as described in claim 1, characterized in that: The glue application mechanism includes a second column, the lower end of which is fixed to the workbench, and the upper end of which is fixed to a first horizontal support plate. A second horizontal support plate is located below the first horizontal support plate, and a second linear module is fixed on it. A fifth horizontal guide rail is provided above the first horizontal support plate. The bottom of the horizontal plate bracket is slidably connected to the fifth horizontal guide rail via a slider. An opening is provided in the middle of the first horizontal support plate, and the bottom of the horizontal plate bracket is connected to the slider of the second linear module from the opening. A second horizontal plate is fixed in front of the horizontal plate bracket. A second horizontal guide rail is provided in front of the second horizontal plate. A second vertical plate is connected to the second horizontal guide rail via a slider. A first linear module is connected in front of the second vertical plate. A second adapter plate is slidably connected to the first linear module. The second adapter plate is provided with a glue bucket and multiple sets of reverse-pull glue guns. The glue bucket is tilted and communicates with the reverse-pull glue guns.

6. The automatic adhesive applicator for sponge brushes as described in claim 1, characterized in that: The sponge head feeding mechanism includes a sponge head feeding vibratory plate, a sponge head feeding guide rail, a sponge head positioning plate, a third linear module, and a fifth column. The bottom of the sponge head feeding vibratory plate is fixed to the ground through a bracket. The bottom of the sponge head feeding guide rail is connected to the worktable through a vibratory feeding seat, and one end of the guide rail is connected to the discharge port of the sponge head feeding vibratory plate. The other end extends to one side of the sponge head positioning plate in front of the sponge head conveying mechanism. The upper part of the sponge head positioning plate is provided with multiple sponge head positioning grooves with side openings. The bottom is provided with a fifth column and a third linear module. The third linear module is connected to the worktable. The lower end of the fifth column is connected to the slider of the third linear module, and the upper end is connected to the sponge head positioning plate.

7. The automatic adhesive applicator for sponge brushes as described in claim 1, characterized in that: The sponge head handling mechanism includes a third column, the lower end of which is fixed to the worktable, and the upper end of which is connected to a third horizontal plate. A third horizontal guide rail is provided parallel to each other on the front of the third horizontal plate. A third vertical plate is connected to the third guide rail via a slider. A third horizontal cylinder is located above the third horizontal plate, and its push rod end is connected to the third vertical plate, enabling the third vertical plate to move along the third horizontal guide rail. A third vertical guide rail is provided parallel to each other on the front of the third vertical plate, and a third adapter plate is connected to the third vertical guide rail via a slider. A third vertical cylinder is located at the top of the third vertical plate, and its push rod end is connected to the third adapter plate, enabling the third adapter plate to move up and down along the third vertical guide rail. Multiple sets of handling needles are arranged horizontally below the third adapter plate. A needle removal plate cylinder is located in front of the third adapter plate. A needle removal plate is connected to the push rod at the lower end of the needle removal plate cylinder. The needle removal plate has through holes corresponding to the positions of the handling needles, allowing the handling needles to pass through the through holes. The needle removal plate cylinder can drive the needle removal plate to move up and down.

8. The automatic adhesive applicator for sponge brushes as described in claim 1, characterized in that: The material handling mechanism includes a fourth column, the bottom of which is connected to a workbench. A fourth horizontal plate is connected to the front of the upper end of the fourth column. The fourth horizontal plate is provided with a fourth horizontal guide rail that is parallel to the ground. A fourth vertical plate is connected to the fourth horizontal guide rail via a slider. A fourth horizontal cylinder is provided above the fourth horizontal plate. The push rod of the fourth horizontal cylinder is connected to the fourth vertical plate, which can drive the fourth vertical plate to move along the fourth horizontal guide rail. A fourth vertical cylinder is provided in front of the fourth vertical plate. A fourth vertical guide rail is provided in front of the fourth vertical cylinder. A material unloading slider is slidably connected to the fourth vertical guide rail. The lower end of the material unloading slider is connected to the push rod of the fourth vertical cylinder via a fifth adapter plate. The fourth vertical cylinder drives the material unloading slider to slide up and down on the fourth vertical guide rail. The lower end of the material unloading slider is also connected to a fourth adapter plate. The fourth adapter plate extends forward. A material unloading cylinder is provided above the extended end. A material unloading clamping finger is provided below the extended end. The material unloading cylinder is connected to the material unloading clamping finger and can drive the opening and closing of the material unloading clamping finger.

9. The automatic adhesive applicator for sponge brushes as described in claim 1, characterized in that: The material feeding and conveying mechanism includes a conveying support, a conveyor belt, a synchronous belt, and a conveying motor. A conveying roller is provided at each of the two ends above the conveying support. The conveyor belt is driven and connected to the conveying roller, and one of the conveying rollers is driven and connected to the conveying motor through the synchronous belt. The conveying motor is fixedly connected to the conveying support below the conveyor belt.