An automatic bonding mechanism for buffer strips

Abstract

This utility model discloses an automatic cushioning strip bonding mechanism, relating to the field of audio system manufacturing technology. The utility model includes a conveyor belt and several partitions; a winding and unwinding mechanism including a fixed plate with unwinding and winding rollers on it; a clamping and pushing mechanism including a transmission chain with four support frames fixedly mounted on it, each support frame having a sliding frame, each support frame having rotating rods on both sides, and each moving frame having clamping rods fixedly mounted on both sides; and a bonding mechanism including two bonding rollers rotatably mounted on the side wall of the conveyor belt. The winding and unwinding mechanism unwinds the cushioning strip and winds the release paper, while the clamping and pushing mechanism moves the cushioning strip to a designated position. The bonding mechanism then presses the cushioning strip down to adhere it to the speaker, thus automatically completing the feeding, pushing, bonding, and unloading of the cushioning strip, greatly increasing production efficiency and the accuracy of the bonding position.

Description

Technical Field

[0001] This utility model relates to the field of audio system manufacturing technology, specifically to an automatic buffer strip bonding mechanism. Background Technology

[0002] The television speaker assembly is the core component of the television's audio system, responsible for converting electrical signals into sound signals to output audio content such as television programs, movies, and music. They are the direct executors of the television's sound-producing function, and their performance directly affects the user's auditory experience.

[0003] When a television plays sound, especially bass, the speaker unit itself vibrates violently. Speakers are typically fixed to the relatively thin plastic back cover or metal bracket of the television using screws and clips. Therefore, a buffer strip is needed on the speaker. Without a buffer strip, the hard speaker casing will directly collide and rub against the television casing, producing buzzing, squeaking, or other noises that severely affect sound quality.

[0004] Buffer strips can effectively absorb and isolate vibrations, prevent the generation of resonance noise, and ensure the purity of sound. They can also protect the speaker from damage during transportation and installation, protect internal components, and help extend the speaker's service life. In current technology, buffer strips are mostly pasted onto the speaker manually. Manual pasting has problems such as low production efficiency and inconsistent pasting positions, making it difficult to meet the needs of large-scale production. Utility Model Content

[0005] The purpose of this invention is to provide an automatic bonding mechanism for buffer strips to address the aforementioned shortcomings in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an automatic buffer strip bonding mechanism, comprising a conveyor belt with several partitions fixedly mounted on it; a winding and unwinding mechanism, comprising a fixed plate fixedly mounted on one side of the conveyor belt, with an unwinding roller and a winding roller rotatably mounted on the fixed plate; a clamping and pushing mechanism, comprising a transmission chain mounted on the side wall of the conveyor belt, with four support frames fixedly mounted on the transmission chain, each support frame having a sliding frame slidably mounted on it, rotating rods rotatably mounted on both sides of each support frame, and clamping rods fixedly mounted on both sides of each moving frame; and a bonding mechanism, comprising two bonding rollers rotatably mounted on the side wall of the conveyor belt.

[0007] Preferably, both the unwinding roller and the winding roller are fixedly provided with a drive wheel on the side near the fixed plate, and a drive belt is provided between the two drive wheels.

[0008] Preferably, two guide rollers are rotatably mounted on the fixed plate.

[0009] Preferably, an mounting plate is fixedly provided on the upper side wall of the conveyor belt, and two sprockets are rotatably mounted on the mounting plate, with a drive chain driven between the two sprockets.

[0010] Preferably, a support rod is fixedly installed on the fixed frame, and each of the movable frames is slidably connected to each support rod in a one-to-one correspondence. Two electric push rods are fixedly installed on the top of each support rod.

[0011] Preferably, a fixing rod is fixedly provided on both sides of the support frame, a sliding plate is slidably provided on each fixing rod, a spring is fixedly provided between each sliding plate and the end of each fixing rod, and each rotating rod is rotatably connected to each sliding plate.

[0012] Preferably, a support plate is fixedly provided on the side wall of the conveyor belt, a hydraulic cylinder is fixedly provided on the support plate, two connecting plates are rotatably provided at the bottom of the hydraulic cylinder, a torsion spring is fixedly provided between the two connecting plates, and each bonding roller is rotatably connected to each connecting plate in a one-to-one correspondence.

[0013] Preferably, a cylinder is fixedly installed on the support plate, and a clamping plate is fixedly installed at the end of the cylinder near the conveyor belt.

[0014] In the above technical solution, the present invention provides an automatic buffer strip bonding mechanism, which has the following beneficial effects: the buffer strip is unwound and the release paper is wound by the unwinding mechanism, the buffer strip is moved to the designated position by the clamping and pushing mechanism, and then the buffer strip is pressed down and bonded to the speaker by the bonding mechanism, thereby automatically completing the feeding, pushing, bonding and unloading of the buffer strip, which greatly increases the production efficiency and the accuracy of the bonding position. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0016] Figure 1 A schematic diagram of the overall structure provided for an embodiment of this utility model;

[0017] Figure 2 A schematic diagram of the winding and unwinding mechanism provided in an embodiment of this utility model;

[0018] Figure 3 This is a schematic diagram of the bonding mechanism provided in an embodiment of the present utility model;

[0019] Figure 4A schematic diagram of the clamping and pushing mechanism provided in this embodiment of the utility model;

[0020] Figure 5 A schematic diagram of the support frame provided in an embodiment of this utility model.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Conveyor belt; 2. Partition plate; 3. Fixing plate; 4. Drive wheel; 5. Drive belt; 6. Unwind roller; 7. Rewind roller; 8. Guide roller; 9. Moving shearing mechanism; 10. Support plate; 11. Cylinder; 12. Clamping plate; 13. Hydraulic cylinder; 14. Torsion spring; 15. Connecting plate; 16. Bonding roller; 17. Mounting plate; 18. Drive chain; 19. Sprocket; 20. Drive motor; 21. Fixing column; 22. Support frame; 23. Ball bearing; 24. Fixing rod; 25. Spring; 26. Slide plate; 27. Rotating rod; 28. Support rod; 29. ​​Moving frame; 30. Electric push rod; 31. Clamping rod; 32. Protruding rod; 33. Limiting groove. Detailed Implementation

[0023] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0024] Please see Figure 1-5 An automatic cushioning strip bonding mechanism, the technical solution proposed in this utility model includes a conveyor belt 1, on which several partitions 2 are fixedly mounted; a winding and unwinding mechanism, which includes a fixed plate 3 fixedly mounted on one side of the conveyor belt 1, on which an unwinding roller 6 and a winding roller 7 are rotatably mounted; a clamping and pushing mechanism, which includes a transmission chain 18 mounted on the side wall of the conveyor belt 1, on which four support frames 22 are fixedly mounted, each support frame 22 has a sliding frame 29, each support frame 22 has a rotating rod 27 rotatably mounted on both sides, and each moving frame 29 has a clamping rod 31 fixedly mounted on both sides; and a bonding mechanism, which includes a rotatably mounted partition on the side of the conveyor belt 1. Two bonding rollers 16 are mounted on the wall; the conveyor belt 1 is used to convey the horn, and the partitions 2 on the conveyor belt 1 are used to separate the horns. The distance between two adjacent partitions 2 is adapted to the length of the horn. The bonding mechanism and the clamping and pushing mechanism are located on different sides. The unwinding roller 6 is used to unwind the buffer strip on the reel, and the winding roller 7 is used to wind up the release paper on the buffer strip. Four support frames 22 on the drive chain 18 are fixed to the top of the drive chain 18. The moving frame 29 rotates with the drive chain 18. The rotating rod 27 and the clamping rod 31 are used to clamp the buffer strip. After clamping the buffer strip, it can drive the buffer strip forward as the drive chain 18 runs. The bonding mechanism can move up and down on the side of the conveyor belt 1, such as... Figure 1As shown, when the conveyor belt 1 moves the horn to directly below the two rotating rods 27 on the left, the conveyor belt 1 stops. The buffer strip is clamped between the two rotating rods 27 on the left and the clamping rod 31. At this time, the buffer strip between the two support frames 22 near the conveyor belt 1 is cut off. Then, the bonding roller 16 moves down, abuts against the buffer strip and presses it down. Subsequently, the buffer strip abuts against the horn. Then, the two bonding rollers 16 move to both sides of the horn, thereby sticking the buffer strip onto the horn. The bonding efficiency is high.

[0025] Specifically, both the unwinding roller 6 and the take-up roller 7 are fixedly equipped with transmission wheels 4 on the side near the fixed plate 3, and a transmission belt 5 is installed between the two transmission wheels 4; a drive motor 20 is fixedly installed on the side of the fixed plate 3 away from the conveyor belt 1, and the output end of the drive motor 20 is fixedly connected to the unwinding roller 6, thereby controlling the rotation of the unwinding roller 6. When the unwinding roller 6 rotates, it drives the take-up roller 7 to rotate through the transmission belt 5 and the transmission wheels 4, thereby winding up the release paper that has separated from the buffer strip.

[0026] Specifically, two guide rollers 8 are rotatably mounted on the fixed plate 3; for example... Figure 2 As shown, two guide rollers 8 are arranged side by side. The guide rollers 8 lower the position of the buffer strip, so that the buffer strip can be clamped by the rotating rod 27 and the clamping rod 31.

[0027] Specifically, a mounting plate 17 is fixedly installed on the side wall of the conveyor belt 1. Two sprockets 19 are rotatably mounted on the mounting plate 17. The transmission chain 18 is driven between the two sprockets 19. A limiting groove 33 is formed on the mounting plate 17. A protruding rod 32 is fixedly installed at the bottom of each mounting plate 17, and each protruding rod 32 is slidably installed in the limiting groove 33. Four fixing posts 21 are fixedly installed on the transmission chain 18. The support frame 22 is fixedly connected to the transmission chain 18 through the fixing posts 21. Multiple balls 23 are rotatably mounted at the bottom of the support plate mounting plate 17. The balls 23 abut against the top wall of the mounting plate 17. The limiting groove 33 is located on the outside of the transmission chain 18. The groove on the mounting plate 17 that is adapted to the transmission chain 18 allows for... The groove limits the transmission chain 18. A drive motor 20 is also fixedly installed at the bottom of the mounting plate 17. The output end of the drive motor 20 on the mounting plate 17 is fixedly connected to one of the sprockets 19. The drive motor 20 drives the sprocket 19 to rotate, thereby driving the transmission chain 18 to rotate, which in turn drives the four support frames 22 to clamp the buffer strip. When the transmission chain 18 runs, it drives each protrusion 32 to move in the limiting groove 33. The cooperation between the limiting groove 33 and the protrusion 32 makes the support frame 22 run stably, preventing the support frame 22 from shifting when sticking the buffer strip. The ball bearings 23 can support the support frame 22 and reduce the friction between the support frame 22 and the mounting plate 17.

[0028] Specifically, a support rod 28 is fixedly installed on the fixed frame, and each movable frame 29 is slidably connected to each support rod 28 in a corresponding manner. Two electric push rods 30 are fixedly installed at the top of each support rod 28, and the end of each electric push rod 30 near the support frame 22 is fixedly connected to the corresponding movable frame 29; for example... Figure 5 As shown, two electric push rods 30 on the support rod 28 are located on both sides of the support rod 28. The moving end of the electric push rod 30 is fixedly connected to the moving plate. The electric push rod 30 pushes the moving frame 29 to move up and down on the support rod 28. When the moving frame 29 moves downward, it will clamp the buffer strip between the clamping rod 31 and the rotating rod 27.

[0029] Specifically, fixed rods 24 are fixedly installed on both sides of the support frame 22, and sliding plates 26 are slidably installed on each fixed rod 24. Springs 25 are fixedly installed between each sliding plate 26 and the end of each fixed rod 24, and each rotating rod 27 is rotatably connected to each sliding plate 26. There is a certain damping between the rotating rod 27 and the sliding plate 26. The fixed rods 24 are fixedly installed on both sides of each support frame 22, and the sliding plates 26 slide on the fixed rods 24. The support frame 22 limits the sliding plates 26, and the springs 25 keep the sliding plates 26 in place. The slide plate 26 is fixed on the support frame 22, thereby fixing its position. In use, the buffer strip is clamped by the rotating rod 27 and the clamping rod 31 on the slide plate 26. The two ends of the buffer strip protrude from one side of the rotating rod 27. When the buffer strip is pressed down by the bonding roller 16, the buffer strip gradually forms a V shape. As the bonding roller 16 moves down, the two bonding rollers 16 push the two rotating rods 27 to both sides, and the buffer strip gradually separates from the rotating rod 27, thus completely adhering to the horn. Then the bonding roller 16 moves up, and the rotating rod 27 is reset by the elastic force of the spring 25.

[0030] Specifically, a support plate 10 is fixedly installed on the side wall of the conveyor belt 1, and a hydraulic cylinder 13 is fixedly installed on the support plate 10. Two connecting plates 15 are rotatably installed at the bottom of the hydraulic cylinder 13, and a torsion spring 14 is fixedly installed between the two connecting plates 15. Each bonding roller 16 is rotatably connected to each connecting plate 15 in a corresponding manner; for example Figure 3 As shown, two bonding rollers 16 are bonded together, thus making the two connecting plates 15 V-shaped. The piston end of the hydraulic cylinder 13 is rotatably connected to the connecting plate 15. The two bonding rollers 16 are bonded together by a torsion spring 14. The hydraulic cylinder 13 controls the bonding rollers 16 to move downward and abut against the top of the horn, thus combining. Figure 1 When the conveyor belt 1 transports the horn to the bonding station, the two bonding rollers 16 are directly above the horn and the sheared buffer strip, and the two rotating rollers are also directly above the horn.

[0031] Specifically, a cylinder 11 is fixedly mounted on the support plate 10, and a clamping plate 12 is fixedly mounted on the end of the cylinder 11 near the conveyor belt 1. The piston end of the cylinder 11 is fixedly connected to the clamping plate 12. The movement of the clamping plate 12 is controlled by the cylinder 11, so that when the horn moves to the fitting position, the clamping plate 12 is pushed to push the pull plate to the side of the conveyor belt 1 near the support frame 22 and abuts against the side wall of the conveyor belt 1, thereby aligning the horn and preventing displacement. After the horn abuts against the side wall of the conveyor belt 1, the cylinder 11 is controlled to return to the initial position to prevent the clamping plate 12 from obstructing the conveyor. When conveyor belt 1 is running normally, a movable shearing mechanism 9 is installed on conveyor belt 1. When two of the support frames 22 are evenly arranged close to conveyor belt 1, the movable shearing mechanism 9 is located in the middle position of the two support frames 22. This movable shearing mechanism 9 can move back and forth in a direction perpendicular to conveyor belt 1. When shearing the buffer strip, the movable shearing mechanism 9 is activated and moves closer to conveyor belt 1. At this time, the two shearing blades of the conveyor shearing mechanism are located on both sides of conveyor belt 1, so that the buffer strip can be sheared. This is the prior art, and will not be described in detail.

[0032] Working principle: In use, the buffer strip on the unwinding roller 6 is pulled out. Then, two of the four mounting brackets on the mounting plate 17 are brought close to the conveyor belt 1, and the other two are moved away from the conveyor belt 1. At this time, the two rotating rods 27 on the left are in the bonding position, and the two bonding rollers 16 are directly above the two rotating rods 27. Then, the buffer strip passes through the two guide rollers 8, and the release paper of the buffer strip is torn off. The release paper is wound onto the take-up roller 7. The buffer strip with the release paper torn off is guided by the guide rollers 8 and its height is between the rotating rod 27 and the clamping rod 31. Then, the end of the buffer strip passes through the rotating rod 27 and the clamping rod 31 near the conveyor belt 1. Then, the electric push rod 30 near the conveyor belt 1 is activated. The push rod 30 pushes two movable frames 29, which, together with four clamping rods 31, clamp the buffer strip. Then, the horn is neatly placed between two adjacent partitions 2. The conveyor belt 1 is started, and the conveyor belt 1 moves the horn to directly below the two leftmost rotating rods 27. The movable shearing mechanism 9 is started to cut the buffer strip between the two support frames 22. At this time, both ends of the buffer strip are exposed from the side of the corresponding rotating rod 27. Then, the hydraulic cylinder 13 is started to move the two bonding rollers 16 downward. The two bonding rollers 16 first abut against the clamped buffer strip, and then press down on the buffer strip so that the horn abuts. The two bonding rollers 16 continue to move downward. Since the two connecting plates 15 are V-shaped, the two bonding rollers 16 continue to press down on the two bonding rollers 16. The two bonding rollers 16 move to both sides of the horn, thus adhering the buffer strip to the horn. When the two bonding rollers 16 open, the torsion spring 14 applies a force to the two connecting plates 15 to close, thereby increasing the force of the bonding rollers 16 on the horn and ensuring the buffer strip is fully adhered. The diameter of the bonding rollers 16 is smaller than that of the rotating rod 27. When the bonding rollers 16 move to both sides, they push the rotating rods 27 on both sides to move to both sides, thus ensuring that the buffer strip on the rotating rod 27 is completely adhered to the horn. During adhering, the rotation of the rotating rod 27 facilitates the separation of the adhesive buffer strip from the rotating rod 27. During clamping, the non-rotating clamping rod 31 prevents the buffer strip from easily shifting. When the two bonding rollers 16... After the buffer strip is fully attached to the horn, the two bonding rollers 16 are moved upwards. Then, the drive chain 18 is rotated, causing the support frame 22 near the right side of the conveyor belt 1 to move to the left side. At this time, the end of the buffer strip also moves to the left side. As the drive chain 18 moves, the support frame 22 away from the right side of the conveyor belt 1 moves to the right side near the conveyor belt 1. At this time, the electric push rod 30 pushes the moving frame 29 downwards to clamp the buffer strip. While the drive chain 18 is rotating, the conveyor belt is also moving synchronously. When the conveyor belt 1 moves the next unprocessed horn to the bonding station, it stops again. When the support frame 22 near the conveyor belt 1 rotates away from the conveyor frame, the electric push rod 30 drives the moving frame 29 to move upwards and reset.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic bonding mechanism for buffer strips, comprising a conveyor belt (1), characterized in that, Several partitions (2) are fixedly installed on the conveyor belt (1); The unwinding and winding mechanism includes a fixed plate (3) fixedly disposed on one side of the conveyor belt (1), and an unwinding roller (6) and a winding roller (7) are rotatably disposed on the fixed plate (3). A clamping and pushing mechanism includes a transmission chain (18) disposed on the side wall of the conveyor belt (1), four support frames (22) are fixedly disposed on the transmission chain (18), a movable frame (29) is slidably disposed on each support frame (22), a rotating rod (27) is rotatably disposed on both sides of each support frame (22), and a clamping rod (31) is fixedly disposed on both sides of each movable frame (29). The bonding mechanism includes two bonding rollers (16) rotatably disposed on the side wall of the conveyor belt (1).

2. The mechanism for automatically attaching a bumper strip according to claim 1, wherein Both the unwinding roller (6) and the winding roller (7) are fixedly provided with a drive wheel (4) on the side near the fixed plate (3), and a drive belt (5) is provided between the two drive wheels (4).

3. The mechanism for automatically attaching a bumper strip according to claim 1, wherein Two guide rollers (8) are rotatably mounted on the fixed plate (3).

4. The mechanism for automatically attaching a bumper strip according to claim 1, wherein An installation plate (17) is fixedly installed on the upper side wall of the conveyor belt (1). Two sprockets (19) are rotatably installed on the installation plate (17), and the transmission chain (18) is driven between the two sprockets (19).

5. The mechanism for automatically attaching a bumper strip according to claim 1, wherein The support frame (22) is fixedly provided with support rods (28), and each of the movable frames (29) is slidably connected to each of the support rods (28) in a one-to-one correspondence. Each of the support rods (28) has two electric push rods (30) fixedly provided at the top.

6. The mechanism for automatically attaching a bumper strip according to claim 1, wherein The support frame (22) is fixedly provided with fixed rods (24) on both sides, and a sliding plate (26) is slidably provided on each fixed rod (24). A spring (25) is fixedly provided between each sliding plate (26) and the end of each fixed rod (24) in a one-to-one correspondence. Each rotating rod (27) is rotatably connected to each sliding plate (26) in a one-to-one correspondence.

7. The mechanism for automatically attaching a bumper strip according to claim 1, wherein A support plate (10) is fixedly installed on the side wall of the conveyor belt (1). A hydraulic cylinder (13) is fixedly installed on the support plate (10). Two connecting plates (15) are rotatably installed at the bottom of the hydraulic cylinder (13). A torsion spring (14) is fixedly installed between the two connecting plates (15). Each bonding roller (16) is rotatably connected to each connecting plate (15) in a one-to-one correspondence.

8. The mechanism for automatically attaching a bumper strip according to claim 7, wherein A cylinder (11) is fixedly installed on the support plate (10), and a clamping plate (12) is fixedly installed at one end of the cylinder (11) near the conveyor belt (1).

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