Hardware door lock surface treatment device

Abstract

This utility model relates to the field of door lock manufacturing technology, specifically a surface treatment device for metal door locks, including a worktable, a drive cylinder, a polishing wheel, a movable plate, a drive mechanism, and a transmission mechanism. A support frame is fixedly connected to the top of the worktable, and a mounting box is fixedly connected to the top of the support frame. Limiting components are provided on the worktable. The drive cylinder is located inside the support frame, with one end passing through the support frame and the mounting box and extending into the mounting box. The polishing wheel is located inside the support frame and is detachably connected to the drive cylinder. The movable plate is located inside the mounting box. The drive mechanism is located on the mounting box, with one end connected to the mounting box. The transmission mechanism is located inside the mounting box. This utility model, through the linkage of the drive mechanism and the transmission mechanism, can drive the polishing wheel to automatically rise and fall, ensuring that the polishing wheel and the target surface of the door lock can form a stable and uniform fit, solving the problem of unstable contact effect of a fixed-height polishing disc.

Description

Technical Field

[0001] This utility model relates to the field of door lock manufacturing technology, specifically to a surface treatment device for metal door locks. Background Technology

[0002] Door locks are the core hardware components that control the opening and closing of doors. They have both anti-theft and security functions as well as convenient use and are widely used in home, commercial and industrial settings. According to the usage scenario and structure, mainstream door locks can be divided into three categories: mechanical door locks, smart door locks and special scenario door locks. Mechanical door locks are traditional door locks that rely on mechanical structure to open and close without electricity. The core of them consists of a lock cylinder, lock body and key.

[0003] Chinese Patent No. CN208801193U discloses a high-efficiency surface treatment device for door locks used in hardware manufacturing. The device includes a base and a housing. The housing is located on the upper surface of the base, and support legs are provided on the lower surface of the base. Fixed plates are vertically installed at both ends of the base, and a conveyor belt is installed on the four fixed plates. The conveyor belt runs from left to right through the entire housing, and multiple door lock fixing grooves are provided on the outer surface of the conveyor belt. A first motor is installed on the upper surface of the left end of the housing. The output shaft of the first motor passes through the end of the housing and is connected to a polishing shaft via a connector. The end of the polishing shaft is connected to a polishing disc. Soft partitions are provided on the top walls of the housing located on both sides of the polishing disc. This invention not only saves a significant amount of labor costs but also ensures a uniform thickness of the anti-rust oil coating, resulting in better rust prevention and greater practicality.

[0004] However, the above technical solution has the following shortcomings: the height of the polishing disc remains unchanged. The polishing disc with a fixed height is difficult to form a stable and effective contact with the target surface of the hardware door lock to be polished. Due to the unstable contact effect, the consistency of polishing quality is greatly reduced, making it difficult to meet the high precision and high efficiency production requirements of hardware door lock surface treatment. Utility Model Content

[0005] The purpose of this utility model is to address the problems existing in the background technology by proposing a surface treatment device for hardware door locks.

[0006] The technical solution of this utility model: a surface treatment device for metal door locks, comprising: The workbench has a support frame fixedly connected to its top, and a mounting box fixedly connected to the top of the support frame. Limiting components are provided on the workbench. A drive cylinder is set inside the support frame, with one end of the drive cylinder passing through the support frame and the mounting box and extending into the mounting box; The polishing wheel is set inside the support frame and is detachably connected to the drive cylinder. The movable plate is installed inside the mounting box and is rotatably connected to the drive cylinder; A drive mechanism is mounted on the mounting box. One end of the drive mechanism is connected to the mounting box, and the output end of the drive mechanism extends into the mounting box and into the mounting box. The output end of the drive mechanism is connected to the drive cylinder. The transmission mechanism is installed inside the mounting box. One end of the transmission mechanism is connected to the drive mechanism, and the other end of the transmission mechanism is connected to the movable plate to drive the movable plate and the drive cylinder to rise and fall.

[0007] Preferably, the drive mechanism includes a fixed box, a drive motor, and a drive rod; the fixed box is fixedly connected to the top of the mounting box, the drive motor is fixedly connected to the fixed box, one end of the drive rod is disposed inside the mounting box, the other end of the drive rod passes through the mounting box and the fixed box and extends into the fixed box, and the drive rod is connected to the output end of the drive motor.

[0008] Preferably, the drive cylinder is sleeved on the surface of the drive rod, and the drive rod and the drive cylinder are slidably connected.

[0009] Preferably, the transmission mechanism includes a lifting screw, a lifting sleeve, a transmission assembly, and a reset assembly; one end of the lifting screw is rotatably disposed in the mounting box, and the other end of the lifting screw passes through the mounting box and the fixed box and extends into the fixed box; the lifting sleeve is disposed in the mounting box, sleeved on the lifting screw and threadedly connected to the lifting screw; the lifting sleeve is fixedly connected to the movable plate; the transmission assembly is disposed in the fixed box, one end of the transmission assembly is connected to the drive rod, and the other end of the transmission assembly is connected to the lifting screw; the reset assembly is disposed in the mounting box.

[0010] Preferably, the transmission assembly includes a driving gear and a driven gear; the driving gear is fixedly connected to the drive rod, the driven gear is fixedly connected to the lifting screw, and the driving gear and the driven gear mesh with each other.

[0011] Preferably, the reset assembly includes a movable ring and a reset spring; the movable ring is movably disposed inside the mounting box and sleeved on the surface of the lifting screw; multiple reset springs are provided, one end of the reset spring is fixedly connected to the top of the support frame, and the other end of the reset spring is fixedly connected to the movable ring.

[0012] Compared with the prior art, the above-mentioned technical solution of this utility model has the following beneficial technical effects: This invention utilizes the linkage between the drive mechanism and the transmission mechanism to automatically raise and lower the polishing wheel. During operation, the drive motor rotates the drive rod, and the driving gear meshes with the driven gear and the lifting screw to rotate. This, in turn, pushes the movable plate, drive cylinder, and polishing wheel downward through the lifting sleeve until the polishing wheel makes stable contact with the door lock surface. When the lifting sleeve moves to the smooth section of the lifting screw, the raising and lowering action automatically stops to avoid excessive pressure damaging the door lock surface. This ensures that the polishing wheel and the target surface of the door lock can form a stable and uniform fit, solving the problem of unstable contact effect of a fixed-height polishing disc, significantly improving the consistency of polishing quality, and meeting the high-precision requirements of hardware door lock surface treatment. Attached Figure Description

[0013] Figure 1 This is a perspective view of one embodiment of the present invention; Figure 2 This is a cross-sectional view of the mounting box in one embodiment of the present invention; Figure 3 This is a perspective view of the transmission mechanism in one embodiment of the present invention; Figure 4 This is a perspective view of the drive cylinder in one embodiment of the present invention; Reference numerals in the attached drawings: 1. Workbench; 2. Support frame; 31. Fixed box; 32. Drive motor; 33. Drive rod; 41. Lifting screw; 42. Lifting sleeve; 431. Drive gear; 432. Driven gear; 441. Movable ring; 442. Return spring; 5. Mounting box; 6. Limiting component; 7. Drive cylinder; 8. Polishing wheel; 9. Movable plate. Detailed Implementation

[0014] Example 1; as Figure 1-4 As shown, the present invention proposes a surface treatment device for a metal door lock, comprising a worktable 1, a drive cylinder 7, a polishing wheel 8, a movable plate 9, a drive mechanism, and a transmission mechanism; a support frame 2 is fixedly connected to the top of the worktable 1, and a mounting box 5 is fixedly connected to the top of the support frame 2; a limiting component 6 is provided on the worktable 1; the drive cylinder 7 is disposed within the support frame 2, with one end of the drive cylinder 7 passing through the support frame 2 and the mounting box 5 and extending into the mounting box 5; the polishing wheel 8 is disposed within the support frame 2, and the polishing wheel 8 is detachably connected to the drive cylinder 7; the movable plate 9 is disposed within the mounting box 5, and the movable plate 9 is rotatably connected to the drive cylinder 7; the drive mechanism is disposed on the mounting box 5, with one end of the drive mechanism connected to the mounting box 5, and the output end of the drive mechanism extending into the mounting box 5 and connected to the drive cylinder 7; the transmission mechanism is disposed within the mounting box 5, with one end of the transmission mechanism connected to the drive mechanism, and the other end of the transmission mechanism connected to the movable plate 9 for driving the movable plate 9 and the drive cylinder 7 to rise and fall.

[0015] Example 2; as Figure 2-4 As shown, the present invention discloses a surface treatment device for a hardware door lock. Compared with Embodiment 1, this embodiment further discloses the structure of the drive mechanism. The drive mechanism includes a fixed box 31, a drive motor 32, and a drive rod 33. The fixed box 31 is fixedly connected to the top of the mounting box 5, and the drive motor 32 is fixedly connected to the fixed box 31. The drive motor 32 has forward and reverse rotation functions and is connected to the control system and power supply through wires. One end of the drive rod 33 is set inside the mounting box 5, and the other end of the drive rod 33 passes through the mounting box 5 and the fixed box 31 and extends into the fixed box 31. The drive rod 33 is connected to the output end of the drive motor 32, and the drive cylinder 7 is sleeved on the surface of the drive rod 33. The drive rod 33 and the drive cylinder 7 are slidably connected.

[0016] Example 3; as Figure 2-3 As shown, this utility model discloses a surface treatment device for a hardware door lock. Compared with Embodiment 2, this embodiment further discloses the structure of the transmission mechanism. The transmission mechanism includes a lifting screw 41, a lifting sleeve 42, a transmission assembly, and a reset assembly. One end of the lifting screw 41 is rotatably disposed in the mounting box 5, and the other end of the lifting screw 41 passes through the mounting box 5 and the fixed box 31 and extends into the fixed box 31. The lifting screw 41 includes a threaded section and a smooth section. The threaded section is located in the middle of the lifting screw 41, and both ends of the lifting screw 41 are smooth sections. The lifting sleeve 42 is disposed in the mounting box 5, sleeved on the lifting screw 41 and threadedly connected to the lifting screw 41. The lifting sleeve 42 is fixedly connected to the movable plate 9. The transmission assembly is disposed in the fixed plate 9. Inside the fixed box 31, one end of the transmission component is connected to the drive rod 33, and the other end of the transmission component is connected to the lifting screw 41. The reset component is set inside the mounting box 5. The transmission component includes a drive gear 431 and a driven gear 432. The drive gear 431 is fixedly connected to the drive rod 33, and the driven gear 432 is fixedly connected to the lifting screw 41. The drive gear 431 and the driven gear 432 mesh with each other. The reset component includes a movable ring 441 and a reset spring 442. The movable ring 441 is movably set inside the mounting box 5 and is sleeved on the surface of the lifting screw 41. Multiple reset springs 442 are provided. One end of the reset spring 442 is fixedly connected to the top of the support frame 2, and the other end of the reset spring 442 is fixedly connected to the movable ring 441.

[0017] The metal door lock to be polished is fixed to the workbench 1 by the limiting component 6, with the target surface of the metal door lock facing upwards. The drive motor 32 drives the drive gear 431 and drive cylinder 7 to rotate together via the drive rod 33. The rotation of drive cylinder 7 drives polishing wheel 8 to rotate together. The rotation of drive gear 431 drives driven gear 432 and lifting screw to rotate together through meshing. The rotation of lifting screw 41 drives movable plate 9 to move downwards via lifting sleeve 42. The downward movement of movable plate 9 drives drive cylinder 7 and polishing wheel 8 to move downwards together. When lifting sleeve 42 descends to the polished section of lifting sleeve 42, lifting sleeve 42 and movable plate 9 stop moving downwards, and return spring 442 is compressed. At this time, The polishing wheel 8 contacts the surface of the hardware lock. The drive motor 32 works continuously, driving the polishing wheel 8 to rotate through the drive rod 33 and drive cylinder 7 to polish the hardware lock. After polishing, the drive motor 32 rotates in the opposite direction. The reverse rotation of the drive motor 32 drives the drive gear 431 to rotate through the drive rod 33. The rotation of the drive gear 431 drives the lifting screw 41 to rotate in the opposite direction through meshing. The lifting screw 41 rotates in the opposite direction, and the lifting sleeve 42 is connected to the threaded end of the lifting screw 41 under the action of the return spring 442. The reverse rotation of the lifting screw 41 drives the movable plate 9 to move downward through the lifting sleeve 42. The movable plate 9 moves upward through the drive cylinder 7 to drive the polishing wheel 8 to move upward and reset.

[0018] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A surface treatment device for metal door locks, characterized in that, include: The workbench (1) has a support frame (2) fixedly connected to its top, and a mounting box (5) fixedly connected to the top of the support frame (2). A limit piece (6) is provided on the workbench (1). The drive cylinder (7) is set inside the support frame (2), and one end of the drive cylinder (7) passes through the support frame (2) and the mounting box (5) and extends into the mounting box (5); The polishing wheel (8) is set inside the support frame (2), and the polishing wheel (8) is detachably connected to the drive cylinder (7); Movable plate (9) is set inside the mounting box (5) and is rotatably connected to the drive cylinder (7); The drive mechanism is mounted on the mounting box (5). One end of the drive mechanism is connected to the mounting box (5). The output end of the drive mechanism extends into the mounting box (5) and into the mounting box (5). The output end of the drive mechanism is connected to the drive cylinder (7). The transmission mechanism is installed in the mounting box (5). One end of the transmission mechanism is connected to the drive mechanism, and the other end of the transmission mechanism is connected to the movable plate (9) to drive the movable plate (9) and the drive cylinder (7) to rise and fall.

2. The surface treatment device for a metal door lock according to claim 1, characterized in that, The drive mechanism includes a fixed box (31), a drive motor (32), and a drive rod (33); the fixed box (31) is fixedly connected to the top of the mounting box (5), the drive motor (32) is fixedly connected to the fixed box (31), one end of the drive rod (33) is set inside the mounting box (5), the other end of the drive rod (33) passes through the mounting box (5) and the fixed box (31) and extends into the fixed box (31), and the drive rod (33) is connected to the output end of the drive motor (32).

3. The surface treatment device for a hardware door lock according to claim 2, characterized in that, The drive cylinder (7) is sleeved on the surface of the drive rod (33), and the drive rod (33) and the drive cylinder (7) are slidably connected.

4. The surface treatment device for a hardware door lock according to claim 2, characterized in that, The transmission mechanism includes a lifting screw (41), a lifting sleeve (42), a transmission assembly, and a reset assembly. One end of the lifting screw (41) is rotatably disposed in the mounting box (5), and the other end of the lifting screw (41) passes through the mounting box (5) and the fixed box (31) and extends into the fixed box (31). The lifting sleeve (42) is disposed in the mounting box (5), and the lifting sleeve (42) is sleeved on the lifting screw (41) and threadedly connected to the lifting screw (41). The lifting sleeve (42) is fixedly connected to the movable plate (9). The transmission assembly is disposed in the fixed box (31), and one end of the transmission assembly is connected to the drive rod (33). The other end of the transmission assembly is connected to the lifting screw (41). The reset assembly is disposed in the mounting box (5).

5. The surface treatment device for a metal door lock according to claim 4, characterized in that, The transmission assembly includes a drive gear (431) and a driven gear (432); the drive gear (431) is fixedly connected to the drive rod (33), the driven gear (432) is fixedly connected to the lifting screw (41), and the drive gear (431) and the driven gear (432) mesh with each other.

6. The surface treatment device for a metal door lock according to claim 4, characterized in that, The reset assembly includes a movable ring (441) and a reset spring (442); the movable ring (441) is movably disposed inside the mounting box (5) and is sleeved on the surface of the lifting screw (41); multiple reset springs (442) are provided, one end of the reset spring (442) is fixedly connected to the top of the support frame (2), and the other end of the reset spring (442) is fixedly connected to the movable ring (441).

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