Automatic foam pasting device and method for assembling mobile phone charger upper cover

Abstract

This invention discloses an automatic foam attaching device and method for assembling a mobile phone charger cover, relating to the field of charger assembly technology. The invention includes a frame, with a conveying component installed inside the frame, and a transmission component fixedly mounted on the top of the frame. One end of the transmission component is fixedly connected to an attaching component. The attaching component includes a T-shaped plate, with slide blocks movably connected to its left and right ends. This invention attaches foam to the inner wall of the charger cover. Even after the attaching block contacts the inner wall, downward pressure is applied to the attaching block, firmly adhering the foam to the inner wall. At this time, a movable shaft on the side of the attaching block slides obliquely upwards along a sliding hole, causing the two attached blocks to separate. During the separation process, the bottom of the attaching block remains in contact with the foam, pressing the entire foam downwards and simultaneously separating it from the foam. This process avoids the possibility of the attaching block continuing to adhere to the foam after separation.

Description

Technical Field

[0001] This invention belongs to the field of charger assembly technology, and in particular relates to an automatic foam attaching device and method for assembling the top cover of a mobile phone charger. Background Technology

[0002] After all the parts of a mobile phone charger are manufactured, they need to be assembled before they can be used. During the assembly process, a layer of foam needs to be attached to the inner wall of the top cover of the mobile phone charger. During use, the charger may be affected by external forces such as vibration and impact. These external forces may damage the internal components of the charger. The foam can play a role in buffering and shock absorption, protecting the internal components of the charger from damage.

[0003] In the current assembly process of mobile phone charger covers, foam is usually attached to the inner wall of the charger cover manually. This method is inefficient and consumes a lot of manpower and resources, and the quality of the foam attachment is also inconsistent. In the process of attaching foam to the charger cover by some automatic foam attaching devices, the attaching device is prone to sticking to the foam, resulting in the foam not being attached to the inside of the charger cover, and the adhesion between the foam and the inner wall of the charger cover is poor, making the foam easy to fall off from the inner wall of the charger cover.

[0004] Existing foam attaching devices for assembling mobile phone charger covers have poor adhesion between the foam and the inner wall of the charger cover during the foam attaching process, and the foam is also prone to falling off the inner wall of the charger cover. To address this, we propose an automatic foam attaching device and method for assembling mobile phone charger covers. Summary of the Invention

[0005] The purpose of this invention is to provide an automatic foam attaching device and method for assembling a mobile phone charger cover, which solves the problem that existing foam attaching devices for assembling mobile phone charger covers have poor adhesion between the foam and the inner wall of the charger cover, and the foam is prone to falling off the inner wall of the charger cover.

[0006] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution: The present invention is an automatic foam attaching device for assembling the top cover of a mobile phone charger, comprising a frame, a conveying component installed inside the frame, and a transmission component fixedly installed on the top of the frame, one end of the transmission component being fixedly connected to the attaching component. The attachment assembly includes a T-shaped plate, with slides movably connected to the left and right ends of the T-shaped plate. Each slide has movable arms movably connected to its opposite sides via mounting shafts. The other ends of the four movable arms are fixedly connected to the outer walls of two attachment blocks via movable shafts. The two attachment blocks are movably connected internally via elastic elements.

[0007] Preferably, the conveying assembly includes a transmission roller, two transmission rollers are respectively installed on the inner walls of opposite sides of the frame, each transmission roller is fixedly connected to a fixed gear on its circumferential side, a transmission chain is movably sleeved on the two fixed gears, a number of bearing beams are fixedly installed on the outside of the transmission chain, and a fixed groove is welded on each bearing beam, the inside of the fixed groove is used to place the top cover of the mobile phone charger; One end of one of the transmission rollers passes through one side of the frame to the outside and is fixedly connected to the transmission gear. One side of the transmission gear is meshed with the drive gear, and the drive gear is fixedly installed on the motor output end.

[0008] Preferably, a chassis is installed on one side of the frame near the motor position. A drive element is welded to the top of the chassis. One output end of the drive element is fixedly connected to one end of a lead screw. The lead screw is mounted on the top of the mounting frame via two fixed seats. The mounting frame is fixedly connected to the top of the frame. The peripheral side of the lead screw is engaged with a movable bearing. An active bevel gear is installed on the outside of the movable bearing. One side of the active bevel gear is engaged with a passive bevel gear. The bottom of one side of the passive bevel gear is fixedly connected to a slider. The slider is slidably connected to the surface of a slide rail. The slide rail is fixedly connected to the top of the mounting frame.

[0009] Preferably, the attachment assembly further includes a connecting block, one end of which is fixedly connected to one side of a driven bevel gear via a coupling, and four fixing rods are fixedly connected to the periphery of the connecting block, with the other end of each fixing rod welded to the outer middle section of the T-shaped plate.

[0010] Preferably, the top of the T-shaped plate is respectively engaged with the left and right slides, and the two slides are symmetrically distributed about the central axis of the T-shaped plate. The two slides are movably connected by a spring. Each slide has a movable component fixedly connected to its top. Each movable component is fixedly connected to one end of a connecting rod. The other ends of the two connecting rods are movably connected by a pin. The circumferential side of the pin is movably connected to the bottom end of the telescopic rod. The top end of the telescopic rod is telescopically disposed inside a cylinder. The cylinder is fixedly connected to the outside of the connecting block.

[0011] Preferably, the slide has mounting grooves on its two opposite sides, and a mounting shaft is fixedly connected inside each mounting groove. Each mounting shaft is movably connected to one end of the movable arm. The other end of the movable arm has a sliding hole in an upward direction. The movable shaft is movably disposed inside the sliding hole and is fixedly connected to the outer wall of the block.

[0012] Preferably, when no foam is attached, the two identical patches are attached together, and the patches have rectangular grooves inside. The two ends of the elastic element are respectively fixedly connected to the inner walls of the two rectangular grooves inside the two patches.

[0013] Preferably, the bottom of the adhesive block is curved, and the bottom of the adhesive block is used to adhere the foam to the inner wall of the mobile phone charger cover.

[0014] A method for using an automatic foam applicator for assembling a mobile phone charger cover, characterized by comprising the following steps: S1. Apply glue to the surface of the foam and stick it to the bottom arc surface of the patch. Start the motor to drive the conveying component to convey the mobile phone charger cover placed inside the fixing slot. S2. Start the drive element to drive the lead screw to rotate, thereby driving the movable bearing sleeved on the surface of the lead screw to move to the other end of the lead screw. At the same time, the passive bevel gear, which meshes with the active bevel gear, rotates and slides to the other end of the slide rail through the slider. S3. When the attachment component connected to one end of the passive bevel gear moves to the top of a fixed groove, it stops moving. The starting cylinder drives the telescopic rod to retract inward. At the same time, the two connecting rods connected to the bottom pin are driven to move upward by the telescopic rod. At this time, the other ends of the two connecting rods move in opposite directions through the sliding block fixed by the movable part. The other ends of the four movable arms connected to the surfaces of the two sliding blocks move downward continuously until the attached block is in contact with the inner wall of the phone charger cover. At this time, the foam glued to the bottom of the attached block is in contact with the inner wall of the charger cover. S4. After the adhesive block contacts the inner wall of the phone charger cover, the cylinder continues to drive the telescopic rod to retract upward. When the two slide blocks slide inward relative to each other, they drive the adhesive block to exert downward pressure on the inner wall of the phone charger cover. The adhesive block presses the foam firmly against the inner wall of the charger cover. At the same time, the movable shaft connected to the outer wall of the adhesive block slides obliquely upward along the sliding hole, causing the two adhesive blocks that are stuck together to separate. The two adhesive blocks press against the inner wall of the phone charger cover and slide in opposite directions until the two adhesive blocks are completely separated from the phone charger cover and separated from the foam. S5. After the foam of the charger cover inside one of the fixed slots on the same straight line is attached, restart the drive element to drive the lead screw to rotate, which will eventually drive the attachment component to rotate and move to the top of another fixed slot. At this time, the attachment component has rotated 90° and the sticky block with the foam is facing the mobile phone charger cover to which the foam is to be attached. In this way, the attachment of the foam of the charger cover inside all the fixed slots on the same straight line is completed.

[0015] The present invention has the following beneficial effects: 1. This invention, by setting up a conveying component and setting a bearing beam on the surface of the conveying chain, and setting a fixing groove on each bearing beam, allows the conveying chain to accurately convey the fixing groove at the top of each bearing beam to the area directly below the attaching component during the conveying process, enabling precise foam attachment of the mobile phone charger cover inside the fixing groove. When the conveying component is working, the motor drives the drive gear to rotate, which in turn drives the transmission gear meshing with it to rotate. The transmission gear drives the fixed gear to rotate through the transmission roller, and the conveying chain on the surface of the fixed gear performs the conveying operation.

[0016] 2. This invention, through the setting of a transmission component, when the drive element is activated, drives the lead screw to rotate. During the rotation of the lead screw, the movable bearing and the driven bevel gear meshing with the active bevel gear rotate. The active bevel gear and the driven bevel gear are the same size and both are conical structures. Therefore, when they mesh, their central axes are perpendicular. When the movable bearing rotates and moves to the other end of the lead screw, the driven bevel gear is simultaneously pushed to the other end of the slide rail. The driven bevel gear drives the attachment component to rotate through the coupling. During this process, it can drive the attachment component to move horizontally, so that the attachment component can move between the fixed slots on the same straight line. It can perform foam application on the charger cover placed in several fixed slots on the same straight line, and can drive the attachment component to rotate. After attaching a charger cover, the attachment component moves horizontally and rotates 90 degrees at the same time. When the horizontal movement is completed, the rotation is completed, and the foam-adhered patch on its surface faces the charger cover below.

[0017] 3. This invention, through the installation of an attachment component, when the attachment component moves to the position directly above the charger cover, activates a cylinder to retract the telescopic rod upwards. This causes the two sliding blocks to slide inwards relative to each other, resulting in the attachment blocks applying downward pressure to the inner wall of the charger cover. The attachment blocks press the foam firmly against the inner wall of the charger cover. Simultaneously, the movable shaft connected to the outer wall of the attachment blocks slides obliquely upwards along the sliding hole, causing the two attached attachment blocks to separate. Furthermore, the two attachment blocks simultaneously press against the inner wall of the charger cover and slide in opposite directions until the two attachment blocks completely detach from the charger cover. It separates from the foam; during this process, the foam can be attached to the inner wall of the charger cover, and when the pad contacts the inner wall of the charger cover, it still applies downward pressure to the pad, so that the pad firmly attaches the foam at the bottom to the inner wall of the charger cover. At this time, the movable shaft on the side of the pad slides obliquely upward along the sliding hole, causing the two pads that are attached together to separate. During the separation process, the bottom of the pad is still in contact with the foam, pressing the entire foam part downward and at the same time playing the role of separating from the foam. This process avoids the possibility of the pad continuing to stick to the foam when it leaves. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 One of the overall structural schematic diagrams of the automatic foam attaching device for assembling the top cover of a mobile phone charger provided by the present invention; Figure 2 A second schematic diagram of the overall structure of the automatic foam attaching device for assembling the top cover of a mobile phone charger provided by the present invention; Figure 3 A schematic diagram of the conveying component structure of the automatic foam applicator for assembling a mobile phone charger top cover provided by the present invention. Figure 4 A top view of the automatic foam applicator for assembling a mobile phone charger cover provided by the present invention. Figure 5 For the present invention Figure 4 Enlarged view of point A in the middle; Figure 6 A schematic diagram of the attachment component structure of the automatic foam attaching device for assembling a mobile phone charger cover provided by the present invention; Figure 7 For the present invention Figure 6 Enlarged view at point B in the middle; Figure 8 A front view schematic diagram of the attachment component of the automatic foam attaching device for assembling a mobile phone charger cover provided by the present invention; Figure 9 This is a schematic diagram of the cross-sectional structure of the foam attaching device for assembling the top cover of a mobile phone charger provided by the present invention.

[0020] The attached diagram lists the components represented by each number as follows: 1. Frame; 2. Drive roller; 3. Fixed gear; 4. Conveyor chain; 5. Bearing beam; 6. Fixed groove; 7. Drive gear; 8. Drive gear; 9. Motor; 10. Chassis; 11. Drive element; 12. Mounting bracket; 13. Lead screw; 14. Fixed seat; 15. Movable bearing; 16. Driving bevel gear; 17. Driven bevel gear; 18. Slider; 19. Slide rail; 20. Coupling; 21. Connecting block; 22. Cylinder; 23. Telescopic rod; 24. Pin; 25. Connecting rod; 26. Moving part; 27. Slide seat; 28. T-plate; 29. ​​Spring; 30. Mounting shaft; 31. Movable arm; 32. Movable shaft; 33. Adhesive block; 34. Elastic element; 35. Fixed rod. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0022] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and for 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. Therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0024] See Figure 1-9 The present invention is an automatic foam attaching device for assembling the top cover of a mobile phone charger, comprising a frame 1, a conveying component installed inside the frame 1, and a transmission component fixedly installed on the top of the frame 1, one end of the transmission component being fixedly connected to the attaching component, and the frame 1 being used to support the overall device. The attachment assembly includes a T-shaped plate 28, with slides 27 movably connected to the left and right ends of the T-shaped plate 28. Each slide 27 has movable arms 31 movably connected to its opposite sides via mounting shafts 30. The other ends of the four movable arms 31 are fixedly connected to the outer walls of two attachment blocks 33 via movable shafts 32. The two attachment blocks 33 are movably connected internally via elastic elements 34. The T-shaped plate 28 is used for the slides 27 to slide on its surface. During the sliding process of the slides 27, it drives the movable arms 31 connected on both sides to extend downward.

[0025] The conveying assembly includes a transmission roller 2. Two transmission rollers 2 are respectively installed on the inner walls of opposite sides of the frame 1. Each transmission roller 2 is fixedly connected to a fixed gear 3 on its periphery. A transmission chain 4 is movably sleeved on the outside of the two fixed gears 3. Several bearing beams 5 are fixedly installed on the outside of the transmission chain 4. A fixed groove 6 is welded on each bearing beam 5. The inside of the fixed groove 6 is used to place the top cover of the mobile phone charger. One end of the transmission roller 2 passes through one side of the frame 1 to its outside and is fixedly connected to the transmission gear 7. One side of the transmission gear 7 is meshed with the drive gear 8, and the drive gear 8 is fixedly installed on the output end of the motor 9.

[0026] Among them, a housing 10 is set on one side of the frame 1 near the position of the motor 9. A drive element 11 is welded to the top of the housing 10. The output end of one side of the drive element is fixedly connected to one end of the lead screw 13. The lead screw 13 is installed on the top of the mounting frame 12 through two fixed seats 14. The mounting frame 12 is fixedly connected to the top of the frame 1. The peripheral side of the lead screw 13 is meshed with the movable bearing 15. An active bevel gear 16 is installed on the outside of the movable bearing 15. One side of the active bevel gear 16 is meshed with the passive bevel gear 17. The bottom side of the passive bevel gear 17 is fixedly connected to the slider 18. The slider 18 is slidably connected to the surface of the slide rail 19. The slide rail 19 is fixedly connected to the top of the mounting frame 12.

[0027] The attachment assembly also includes a connecting block 21. One end of the connecting block 21 is fixedly connected to one side of the passive bevel gear 17 via a coupling 20. Four fixing rods 35 are fixedly connected to the periphery of the connecting block 21. The other end of each fixing rod 35 is welded to the outer middle section of the T-shaped plate 28.

[0028] The top of the T-shaped plate 28 is respectively engaged with the two left and right slides 27, and the two slides 27 are symmetrically distributed about the central axis of the T-shaped plate 28. The two slides 27 are movably connected by a spring 29. Each slide 27 has a movable part 26 fixedly connected to its top. Each movable part 26 is fixedly connected to one end of a connecting rod 25. The other ends of the two connecting rods 25 are movably connected by a pin 24. The circumferential side of the pin 24 is movably connected to the bottom end of the telescopic rod 23. The top end of the telescopic rod 23 is telescopically located inside the cylinder 22. The cylinder 22 is fixedly connected to the outside of the connecting block 21.

[0029] The slide block 27 has mounting slots on its two opposite sides. Each mounting slot is fixedly connected to a mounting shaft 30. Each mounting shaft 30 is movably connected to one end of the movable arm 31. The other end of the movable arm 31 has a sliding hole in an upward direction. The movable shaft 32 is movably disposed inside the sliding hole and is fixedly connected to the outer wall of the patch block 33.

[0030] When no foam is attached, two identical patches 33 are attached together, and rectangular grooves are provided inside the patches 33. The two ends of the elastic element 34 are respectively fixedly connected to the inner walls of the two rectangular grooves inside the two patches 33.

[0031] The bottom of the adhesive block 33 is curved, and the bottom of the adhesive block 33 is used to stick the foam to the inner wall of the mobile phone charger cover.

[0032] A method for using an automatic foam applicator for assembling a mobile phone charger cover, characterized by comprising the following steps: S1. Apply glue to the surface of the foam and stick it to the bottom arc surface of the patch 33. Start the motor 9 to drive the transmission component to transport the mobile phone charger cover placed inside the fixing slot. S2. Start the drive element 11 to drive the lead screw 13 to rotate, thereby driving the movable bearing 15 sleeved on the surface of the lead screw 13 to move to the other end of the lead screw 13. At the same time, the passive bevel gear 17, which meshes with the active bevel gear 16, rotates and slides to the other end of the slide rail 19 through the slider 18. S3. When the attachment component connected to one end of the passive bevel gear 17 moves to the top of a fixed groove 6, it stops moving. The starting cylinder 22 drives the telescopic rod 23 to retract inward. At the same time, one end of the two connecting rods 25 connected by the bottom pin is driven by the telescopic rod 23 to move upward. At this time, the other end of the two connecting rods 25 moves in the opposite direction through the slide block 27 fixed by the movable part 26. The other end of the four movable arms 31 connected to the surface of the two slide blocks 27 moves downward continuously until the attached block 33 connected to it comes into contact with the inner wall of the mobile phone charger cover. At this time, the foam glued to the bottom of the attached block 33 is in contact with the inner wall of the charger cover. S4. After the adhesive block 33 contacts the inner wall of the phone charger cover, the cylinder 22 continues to drive the telescopic rod 23 to retract upward. When the two slide blocks 27 slide inward relative to each other, they drive the adhesive block 33 to apply downward pressure to the inner wall of the phone charger cover. The adhesive block 33 presses the foam firmly against the inner wall of the charger cover. At the same time, the movable shaft 32 connected to the outer wall of the adhesive block 33 slides obliquely upward along the sliding hole, causing the two adhesive blocks 33 that are stuck together to separate. The two adhesive blocks 33 press against the inner wall of the phone charger cover and slide in opposite directions until the two adhesive blocks 33 are completely separated from the phone charger cover and separated from the foam. S5. After the foam of the charger cover inside one of the fixing slots 6 located on the same straight line is attached, the drive element 11 is restarted to drive the lead screw 13 to rotate, thereby finally driving the attachment component to rotate and move to the top of another fixing slot. At this time, the attachment component has rotated 90°, and the sticking block 33 with the foam is facing the mobile phone charger cover to which the foam is to be attached, thus completing the attachment of the foam of the charger cover inside all the fixing slots 6 on the same straight line.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. An automatic foam applicator for assembling a mobile phone charger cover, comprising a frame (1), characterized in that: The frame (1) is equipped with a conveying component, and a transmission component is fixedly installed on the top of the frame (1). One end of the transmission component is fixedly connected to the attachment component. The attachment assembly includes a T-shaped plate (28), with slides (27) movably connected to the left and right ends of the T-shaped plate (28). Each slide (27) has movable arms (31) movably connected to its opposite sides via mounting shafts (30). The other ends of the four movable arms (31) are fixedly connected to the outer walls of two attachment blocks (33) via movable shafts (32). The two attachment blocks (33) are movably connected internally via elastic elements (34). The conveying assembly includes a transmission roller (2), two transmission rollers (2) are respectively installed on the inner walls of opposite sides of the frame (1), and a fixed gear (3) is fixedly connected to the periphery of each transmission roller (2). A transmission chain (4) is movably sleeved on the outside of the two fixed gears (3). Several bearing beams (5) are fixedly installed on the outside of the transmission chain (4). A fixed groove (6) is welded on each bearing beam (5). The inside of the fixed groove (6) is used to place the top cover of the mobile phone charger. One of the transmission rollers (2) passes through one side of the frame (1) to its outside and is fixedly connected to the transmission gear (7). One side of the transmission gear (7) is meshed with the drive gear (8). The drive gear (8) is fixedly installed on the output end of the motor (9). A housing (10) is provided on one side of the frame (1) near the motor (9). A drive element (11) is welded to the top of the housing (10). The output end of the drive element (11) is fixedly connected to one end of the lead screw (13). The lead screw (13) is mounted on the top of the mounting frame (12) through two fixed seats (14). The mounting frame (12) is fixedly connected to the top of the frame (1). The peripheral side of the lead screw (13) is meshed with the movable bearing (15). An active bevel gear (16) is installed on the outside of the movable bearing (15). One side of the active bevel gear (16) is meshed with the passive bevel gear (17). The bottom side of the passive bevel gear (17) is fixedly connected to the slider (18). The slider (18) is slidably connected to the surface of the slide rail (19). The slide rail (19) is fixedly connected to the top of the mounting frame (12). The attachment assembly also includes a connecting block (21), one end of which is fixedly connected to one side of a passive bevel gear (17) via a coupling (20), and four fixing rods (35) are fixedly connected to the periphery of the connecting block (21), with the other end of each fixing rod (35) welded to the outer middle section of the T-shaped plate (28). The top of the T-shaped plate (28) is respectively engaged with the two left and right slides (27), and the two slides (27) are symmetrically distributed about the central axis of the T-shaped plate (28). The two slides (27) are movably connected by a spring (29). Each slide (27) has a movable part (26) fixedly connected to its top. Each movable part (26) is fixedly connected to one end of a connecting rod (25). The other ends of the two connecting rods (25) are movably connected by a pin (24). The circumferential side of the pin (24) is movably connected to the bottom end of the telescopic rod (23). The top end of the telescopic rod (23) is telescopically located inside the cylinder (22). The cylinder (22) is fixedly connected to the outside of the connecting block (21). When the attachment component moves to the position directly above the charger cover, the starting cylinder (22) drives the telescopic rod (23) to retract upward, thereby causing the two slide blocks (27) to slide inward relative to each other, which in turn causes the attachment block (33) to apply downward pressure to the inner wall of the phone charger cover. The attachment block (33) presses the foam firmly against the inner wall of the charger cover. At the same time, the movable shaft (32) connected to the outer wall of the attachment block (33) slides obliquely upward along the sliding hole, causing the two attachment blocks (33) that are attached together to separate. The two attachment blocks (33) press against the inner wall of the phone charger cover and slide in opposite directions until the two attachment blocks (33) are completely detached from the phone charger cover and separated from the foam.

2. The automatic foam applicator for assembling a mobile phone charger cover according to claim 1, characterized in that, The slide block (27) has mounting grooves on its two opposite sides. Each mounting groove is fixedly connected to a mounting shaft (30). Each mounting shaft (30) is movably connected to one end of a movable arm (31). The other end of the movable arm (31) has a sliding hole in an upward direction. The movable shaft (32) is movably disposed inside the sliding hole and is fixedly connected to the outer wall of the patch block (33).

3. The automatic foam applicator for assembling a mobile phone charger cover according to claim 2, characterized in that, When no foam is attached, the two identical patches (33) are attached together, and the patches (33) have rectangular grooves inside. The two ends of the elastic member (34) are fixedly connected to the inner walls of the two rectangular grooves inside the two patches (33).

4. The automatic foam applicator for assembling a mobile phone charger cover according to claim 3, characterized in that, The bottom of the adhesive block (33) is curved, and the bottom of the adhesive block (33) is used to stick foam to the inner wall of the mobile phone charger cover.

5. A method of using an automatic foam applicator for assembling a mobile phone charger cover, applied to the automatic foam applicator for assembling a mobile phone charger cover according to claim 4, characterized in that, Includes the following steps: S1. Apply glue to the surface of the foam and stick it to the bottom arc surface of the patch (33). Start the motor (9) to drive the conveying assembly to convey the mobile phone charger cover placed inside the fixing slot (6). S2. Start the drive element (11) to drive the lead screw (13) to rotate, thereby driving the movable bearing (15) sleeved on the surface of the lead screw (13) to move to the other end of the lead screw (13). At the same time, the passive bevel gear (17) meshes with the active bevel gear (16) and rotates, and slides to the other end of the slide rail (19) through the slider (18). S3. When the attachment component connected to one end of the passive bevel gear (17) moves to the top of a fixed groove (6) and stops moving, the starting cylinder (22) drives the telescopic rod (23) to retract inward. At the same time, the two connecting rods (25) connected to the bottom pin (24) are driven to move upward by the telescopic rod (23). At this time, the other end of the two connecting rods (25) moves in the opposite direction through the slide (27) fixed by the movable part (26). The other end of the four movable arms (31) connected to the surface of the two slides (27) moves downward continuously until the attached block (33) connected to it comes into contact with the inner wall of the mobile phone charger cover. At this time, the foam glued to the bottom of the attached block (33) is in contact with the inner wall of the charger cover. S4. After the adhesive block (33) contacts the inner wall of the mobile phone charger cover, the cylinder (22) still drives the telescopic rod (23) to retract upward. When the two slide blocks (27) slide inward relative to each other, they drive the adhesive block (33) to apply downward pressure to the inner wall of the mobile phone charger cover. The adhesive block (33) presses the foam firmly against the inner wall of the charger cover. At the same time, the movable shaft (32) connected to the outer wall of the adhesive block (33) slides obliquely upward along the sliding hole, causing the two adhesive blocks (33) that are stuck together to separate. The two adhesive blocks (33) press against the inner wall of the mobile phone charger cover and slide in opposite directions until the two adhesive blocks (33) completely detach from the mobile phone charger cover and separate from the foam. S5. After the foam of the charger cover inside the fixed slot (6) located on the same straight line is attached, restart the drive element (11) to drive the lead screw (13) to rotate, so that the attachment component will eventually rotate and move to the top of another fixed slot (6). At this time, the attachment component will rotate 90° and the sticking block (33) with the foam will be facing the mobile phone charger cover with the foam to be attached, thus completing the attachment of the foam of the charger cover inside all the fixed slots (6) on the same straight line.

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