Device for automatically screwing flashlight body and flashlight cover
By using an automatic flashlight body and cap tightening device, which combines rollers and movable pressure rollers, the problem of low tightening efficiency in flashlights is solved, achieving efficient automatic tightening and cost reduction.
Patent Information
- Application Number
- CN202423170849.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-23
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2034-12-23
AI Technical Summary
Existing flashlight assembly equipment cannot automatically tighten threaded caps, has a complex structure and high cost, resulting in low efficiency and high labor intensity for workers.
An automatic tightening device for the flashlight body and cap is adopted, which includes a mounting plate, motor, roller assembly, movable pressure roller and controller. The roller assembly rotates the body and the movable pressure roller connects with the cap. The movable pressure roller is controlled by a pneumatic cylinder and foot switch to press down and achieve automatic tightening.
It achieves efficient automatic tightening of the cap, increases assembly efficiency by 5 times, reduces labor intensity and costs for workers, adapts to different specifications of flashlights, and requires no fixtures.
Smart Images

Figure CN223544577U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of flashlight assembly technology, and in particular to a device for automatically assembling the body and cap of a flashlight. Background Technology
[0002] Flashlights are common small household appliances. Currently, commercially available rechargeable flashlights generally include a body, bulb, battery, tail cap, and drive mechanism. The tail cap is typically threaded and fixed to the end of the body. Traditionally, the body and tail cap are assembled manually by workers. This method usually requires multiple people, resulting in low efficiency, high labor intensity for workers, and hand fatigue and discomfort, making it unsuitable for large-scale mass production. Although some devices for automatic flashlight assembly have been designed, such as the flashlight rear assembly device disclosed in Chinese invention patent CN202010347316.3, this device cannot automatically tighten the threaded tail cap to the body, and its structure is complex and costly. Utility Model Content
[0003] This utility model addresses the problems existing in the prior art by providing an automatic device for twisting the body and cap of a flashlight that is simple in structure, low in cost, easy to operate, convenient and practical, and has high assembly efficiency. In particular, for caps containing batteries, this cap is longer than a typical tail cap.
[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: an automatic device for twisting the body and cap of a flashlight, characterized in that: it includes a mounting plate, a motor, a roller assembly, a movable pressure roller, and a controller; the motor is mounted on the mounting plate and connected to the controller; a mounting base is provided on the mounting plate; two rollers of the roller assembly are mounted on the mounting base at a distance from each other, and at least one roller is connected to the motor; the movable pressure roller is movably mounted above the roller assembly, and the movable pressure roller is connected to a lifting drive mechanism, which is connected to a control mechanism. The control mechanism controls the lifting drive mechanism to push the movable pressure roller down to press the flashlight body onto the two rollers of the roller assembly to achieve rotation of the flashlight body.
[0005] Furthermore, the movable pressure roller is installed at the front end of a movable plate, and the middle position of the movable plate is hinged to the mounting base via a pivot to form a movable structure. The lifting drive mechanism is connected to the tail end of the movable plate.
[0006] Furthermore, the lifting drive mechanism includes a pneumatic cylinder, which is connected to a pump column, which is connected to a movable plate; the pneumatic cylinder is connected to a pneumatic mechanism, which is connected to a control mechanism.
[0007] Furthermore, the control mechanism includes a foot switch, which is connected to the pneumatic mechanism via an air pipe, and is also connected to the power cord of the entire device via a wire, which is connected to the controller.
[0008] Furthermore, the pneumatic mechanism includes a solenoid valve and a pneumatic chamber. The foot switch is connected to the solenoid valve through an air pipe. The solenoid valve is connected to the pneumatic chamber and the pneumatic cylinder through an air pipe. An air inlet pipe is connected to the pneumatic chamber.
[0009] Furthermore, the first roller in the roller assembly is not connected to the motor and forms a driven roller, while the second roller is connected to the motor and forms a driving roller. The first roller is located in front of the second roller, and the second roller is blocked behind the first roller.
[0010] Furthermore, the pneumatic cylinder is disposed between the mounting bases, and the top end of the pump column is hinged to the movable plate.
[0011] Furthermore, the movable pressure roller includes two sub-wheels, left and right, which are connected to the lower front end of the movable plate via the same axle.
[0012] This invention utilizes two rollers and a movable pressure roller to rotate the flashlight body. Simultaneously, a worker aligns the cap with the body, automatically tightening it during the body's rotation without manual tightening. This method is not only convenient and quick, but also highly efficient, adaptable to various flashlight sizes and eliminates the need for jigs. The entire device is simple in structure, easy to operate, and practical, increasing assembly efficiency by approximately five times compared to manual assembly. Only one person is required to operate the device, significantly improving efficiency and reducing worker fatigue and labor costs. Attached Figure Description
[0013] Figure 1 This is a structural diagram of the present invention;
[0014] Figure 2 This is an overall structural diagram of the present invention from another angle;
[0015] Figure 3 This is an exploded planar structural diagram of the present invention.
[0016] In the diagram, 1 is the mounting plate, 11 is the mounting base, 2 is the motor, 21 is the first roller, 22 is the second roller, 3 is the power cord, 4 is the controller, 5 is the movable plate, 51 is the movable pressure roller, 52 is the rotating shaft, 6 is the pneumatic cylinder, 61 is the pump column, 7 is the foot switch, 71 is the air pipe, 72 is the wire, 8 is the solenoid valve, 9 is the pneumatic chamber, and 91 is the air inlet pipe. Detailed Implementation
[0017] In this embodiment, refer to Figures 1-3The automatic flashlight body and cap screwing device includes a mounting plate 1, a motor 2, a roller assembly, a movable pressure roller 51, and a controller 4. The motor 2 is mounted on the mounting plate 1 and connected to the controller 4, and the speed of the motor 2 can be adjusted by the controller 4. A mounting base 11 is provided on the mounting plate 1. The two rollers of the roller assembly are mounted on the mounting base 1 at a distance less than the diameter of the flashlight body to prevent the body from being completely embedded between the two rollers. The first roller 21 in the roller assembly is not connected to the motor 2 and forms a driven roller, while the second roller 22 is connected to the motor 2 and forms a driving roller. The first roller 21 is located in front of the second roller 22, and the second roller 22 is blocked behind the first roller 21. This makes it less likely for the operator to touch the second roller 22 during operation. The first roller 21 does not rotate when not being assembled, which is more conducive to ensuring the safety of the operator. The movable pressure roller 51 is movably mounted above the roller assembly. The movable pressure roller 51 is connected to a lifting drive mechanism, which is connected to a control mechanism. The control mechanism controls the lifting drive mechanism to push the movable pressure roller 51 down, pressing the flashlight body onto the two rollers of the roller assembly. At this time, the flashlight body will be driven to rotate due to contact with the second roller 22. The first roller 21 and the movable pressure roller 51 will also be driven to rotate by the flashlight body.
[0018] The movable pressure roller 51 is installed at the front end of a movable plate 5. The middle part of the movable plate 5 is hinged to the mounting base 11 via a pivot 52 to form a movable structure. Similar to a seesaw, the lifting drive mechanism is connected to the tail end of the movable plate 5.
[0019] The lifting drive mechanism includes a pneumatic cylinder 6, which is connected to a pump column 61, and the pump column 61 is connected to a movable plate 5; the pneumatic cylinder 6 is connected to a pneumatic mechanism, and the pneumatic mechanism is connected to a control mechanism.
[0020] The control mechanism includes a foot switch 7, which is connected to the pneumatic mechanism via an air pipe 71, and is also connected to the power cord 3 of the entire device via a wire 72. The power cord 3 is connected to the controller 4.
[0021] The pneumatic mechanism includes a solenoid valve 8 and a pneumatic chamber 9. The foot switch 7 is connected to the solenoid valve 8 through an air pipe 71. The solenoid valve 8 is connected to the pneumatic chamber 9 and the pneumatic cylinder 6 through an air pipe. The pneumatic chamber 9 has an air inlet pipe 91.
[0022] The pneumatic cylinder 6 is disposed between the mounting bases 11, and the top end of the pump column 61 is hinged to the movable plate 5.
[0023] The movable pressure roller 51 includes two sub-wheels, left and right, which are connected to the lower front end of the movable plate 5 via the same axle.
[0024] Under normal circumstances, the movable plate 5 tilts upwards, and the movable pressure roller 51, the first roller 21, and the second roller 22 do not contact each other, but the second roller 22 continues to rotate under the drive of the motor 2. Insert the flashlight body between the first roller 21 and the second roller 22, and use your other hand to align the cap with the body and hold it. Press the foot switch 7, which drives the air cylinder 6 through the solenoid valve 8 and the air chamber 9, raising the pump column 61. This pushes the tail of the movable plate 5 upwards, causing the movable pressure roller 51 to press down, pressing the flashlight body onto the first roller 21 and the second roller 22. Under the action of friction, the flashlight body is driven to rotate by the second roller 22, while the cap, being held, does not rotate synchronously, thus being tightened by the rotating body. After tightening the body and cap, release the foot switch 7, the movable plate 5 returns to its original position, and the movable pressure roller 51 moves upwards away from the flashlight body. Remove the assembled component, and the next assembly operation can begin.
[0025] The present invention has been described in detail above. The above description is only a preferred embodiment of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made in accordance with the scope of this application should still fall within the scope of the present invention.
Claims
1. An automatic device for tightening the body and cap of a flashlight, characterized in that: It includes a mounting plate, a motor, a roller assembly, a movable pressure roller, and a controller. The motor is mounted on the mounting plate and connected to the controller. A mounting base is provided on the mounting plate. The two rollers of the roller assembly are mounted on the mounting base at a distance from each other, and at least one of the rollers is connected to the motor. The movable pressure roller is movably mounted above the roller assembly and is connected to a lifting drive mechanism. The lifting drive mechanism is connected to a control mechanism. The control mechanism controls the lifting drive mechanism to push the movable pressure roller down, pressing the flashlight body onto the two rollers of the roller assembly to achieve rotation of the flashlight body.
2. The automatic screw-on device for the flashlight body and cap according to claim 1, characterized in that: The movable pressure roller is installed at the front end of a movable plate, and the middle part of the movable plate is hinged to the mounting base by a rotating shaft to form a movable structure. The lifting drive mechanism is connected to the rear end of the movable plate.
3. The automatic flashlight body and cap screw-on device according to claim 1 or 2, characterized in that: The lifting drive mechanism includes a pneumatic cylinder, which is connected to a pump column, which is connected to a movable plate; the pneumatic cylinder is connected to a pneumatic mechanism, which is connected to a control mechanism.
4. The automatic screw-on device for the flashlight body and cap according to claim 3, characterized in that: The control mechanism includes a foot switch, which is connected to the pneumatic mechanism via an air pipe, and is also connected to the power cord of the entire device via a wire, which is connected to the controller.
5. The automatic screw-on device for the flashlight body and cap according to claim 4, characterized in that: The pneumatic mechanism includes a solenoid valve and a pneumatic chamber. A foot switch is connected to the solenoid valve through an air pipe. The solenoid valve is connected to the pneumatic chamber and the pneumatic cylinder through an air pipe. An air inlet pipe is connected to the pneumatic chamber.
6. The automatic screw-on device for the flashlight body and cap according to claim 1, characterized in that: The first roller in the roller assembly is not connected to the motor and forms a driven roller, while the second roller is connected to the motor and forms a driving roller. The first roller is located in front of the second roller, and the second roller is blocked behind the first roller.
7. The automatic screw-on device for the flashlight body and cap according to claim 3, characterized in that: The pneumatic cylinder is mounted between the mounting bases, and the top of the pump column is hinged to the movable plate.
8. The automatic screw-on device for the flashlight body and cap according to claim 2, characterized in that: The movable pressure roller includes two sub-wheels, left and right, which are connected to the lower front end of the movable plate via the same axle.
Citation Information
Patent Citations
Electric torch rear part assembling device
CN111571214A