Servo cap screwing equipment for cosmetic product production

By introducing a torque sensor and PLC control system into the capping equipment, the tightening force of the bottle cap can be detected and controlled in real time, solving the problem of bottle caps not being tightened in the existing technology and improving the quality and production efficiency of capping.

CN224001022UActive Publication Date: 2026-03-17SHANGHAI YINONG BIO TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-30
Publication Date
2026-03-17

AI Technical Summary

Technical Problem

The existing capping equipment lacks torque control components, which results in some caps not being tightened properly, potentially leading to liquid leakage. Furthermore, the capping quality cannot be monitored in real time, affecting production efficiency and yield.

Method used

The system uses a torque sensor in conjunction with a PLC control system to detect the torque value in real time during the capping process. It also controls the tightening force of the cap clamp through a servo motor to ensure that the cap is tightened sufficiently and to alert staff to handle any issues that are not met.

Benefits of technology

It enables real-time monitoring and control of bottle cap tightening force, reducing the risk of liquid leakage and improving yield and production efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses servo cap screwing equipment for cosmetic product production, and belongs to the technical field of cosmetic cap screwing. Comprising a first stand column and a second stand column which are fixedly connected to a bottom plate; a lifting plate is slidably connected to the first stand column. The first driving motor is fixedly connected to the lifting plate; the torsion sensor is connected to the driving end of the first driving motor through a coupler; the rotary pneumatic claw is connected to the bottom of the torsion sensor through a coupler; the driving end of the rotary pneumatic claw is fixedly connected with a bottle cap chuck; the second stand column is connected with a mounting plate; according to the bottle cap screwing device, the torsion value in the cap screwing process is recorded in real time through the torsion sensor arranged in the device, the torsion value is transmitted to the PLC control system to be compared with the preset torsion value, then whether the bottle cap is fully screwed down or not when the first driving motor drives the bottle cap chuck to screw down the bottle cap can be detected, and the problem that in the prior art, the bottle cap is not fully screwed down is solved. And part of bottle caps can not be tightened up to the standard, so that liquid leakage is easily caused.
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Description

Technical Field

[0001] This utility model relates to the technical field of cosmetic capping devices, and in particular to a servo capping device for cosmetic product manufacturing. Background Technology

[0002] In the cosmetics manufacturing industry, the product packaging process is crucial, with the screw cap being a key step that directly affects the product's airtightness and subsequent user experience.

[0003] Existing capping machines typically employ a combination of servo motors to control the capping head's up-and-down movement and another set of servo motors to control its rotation and tightening. However, this method still has certain shortcomings:

[0004] Existing capping equipment can generally only control the downward movement and rotation of the capping head. The equipment lacks torque control components. In the actual capping process, some caps are easily not tightened, which may lead to leakage of liquid from the bottle. In addition, existing capping equipment cannot remind workers whether the capping work is qualified. Some unqualified products may be transported to the next processing step by the conveyor belt, which may lead to a decrease in overall production efficiency and make it difficult to guarantee the yield rate. Utility Model Content

[0005] The purpose of this utility model is to solve the problems mentioned in the background art and to propose a servo capping device for cosmetic product production.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A servo capping device for cosmetic product manufacturing, comprising:

[0008] The first and second columns are fixedly connected to the base plate;

[0009] A lifting plate is slidably connected to the first column;

[0010] The first drive motor is fixedly connected to the lifting plate;

[0011] The torque sensor is connected to the drive end of the first drive motor via a coupling;

[0012] A rotating pneumatic gripper is connected to the bottom of a torque sensor via a coupling;

[0013] A bottle cap clamp is fixedly connected to the drive end of the rotary gripper;

[0014] A mounting plate is connected to the second column;

[0015] The cylinder is secured and fixedly connected to the mounting plate;

[0016] Symmetrically arranged bottle clamping plates are fixedly connected to the drive end of the clamping cylinder;

[0017] The bottle clamp is located directly below the bottle cap clamp.

[0018] Preferably, a top plate is fixedly connected to the top of the first column, a second drive motor is fixedly connected to the top plate, a lead screw is fixedly connected to the drive end of the second drive motor, a lead screw sleeve is fixedly connected to the lifting plate, and the lead screw is threadedly connected to the lead screw sleeve.

[0019] Furthermore, a limiting sleeve is fixedly connected to the lifting plate, and the limiting sleeve is slidably connected to the first column.

[0020] Furthermore, both the first drive motor and the second drive motor are servo motors.

[0021] Compared with the prior art, this utility model provides a servo capping device for cosmetic product manufacturing, which has the following beneficial effects:

[0022] The parts of this device not mentioned herein are the same as or can be implemented using existing technologies. This utility model records the torque value during the capping process in real time through the torque sensor set in the device, and transmits the torque value to the PLC control system for comparison with the preset torque value. This enables the detection of whether the cap is fully tightened when the first drive motor drives the cap clamp to tighten the cap, thus solving the problem in the prior art that some caps may not be tightened properly, which can easily cause liquid leakage.

[0023] Meanwhile, the torque sensor in the device works in conjunction with each set of drive motors to remind workers to remove defective products, reducing the possibility of defective products entering the next process and improving the yield rate. Attached Figure Description

[0024] Figure 1 This utility model provides a schematic diagram of the structure of a servo capping device for cosmetic product manufacturing. Figure 1 ;

[0025] Figure 2 This utility model proposes a servo capping device for cosmetic product manufacturing. Figure 1 Enlarged view of part A in the image;

[0026] Figure 3 This utility model provides a schematic diagram of the structure of a servo capping device for cosmetic product manufacturing. Figure 2 ;

[0027] Figure 4This is a schematic diagram of the connection structure between the lifting plate and the first column in a servo capping device for cosmetic product manufacturing proposed in this utility model.

[0028] In the diagram: 1. Base plate; 101. First column; 1011. Limiting sleeve; 102. Second column; 1021. Mounting plate; 1022. Bottle clamping plate; 2. Top plate; 3. Second drive motor; 4. Lead screw; 401. Lead screw sleeve; 5. Lifting plate; 6. First drive motor; 7. Torque sensor; 8. Rotary gripper; 801. Bottle cap clamp; 9. Clamping cylinder. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0030] Example 1:

[0031] Reference Figures 1-4 A servo capping device for cosmetic product manufacturing, comprising:

[0032] The first column 101 and the second column 102 are fixedly connected to the base plate 1;

[0033] A lifting plate 5 is slidably connected to the first column 101;

[0034] The first drive motor 6 is fixedly connected to the lifting plate 5;

[0035] Torque sensor 7 is connected to the drive end of first drive motor 6 via a coupling;

[0036] The rotating pneumatic gripper 8 is connected to the bottom of the torque sensor 7 via a coupling;

[0037] A bottle cap chuck 801 is fixedly connected to the drive end of the rotary pneumatic gripper 8;

[0038] A mounting plate 1021 is connected to the second column 102;

[0039] The clamping cylinder 9 is fixedly connected to the mounting plate 1021;

[0040] The symmetrically arranged bottle clamping plates 1022 are fixedly connected to the drive end of the clamping cylinder 9;

[0041] The bottle clamp 1022 is located directly below the bottle cap clamp 801.

[0042] The top of the first column 101 is fixedly connected to the top plate 2, the top plate 2 is fixedly connected to the second drive motor 3, the drive end of the second drive motor 3 is fixedly connected to the lead screw 4, the lifting plate 5 is fixedly connected to the lead screw sleeve 401, and the lead screw 4 and the lead screw sleeve 401 are threadedly connected.

[0043] Reference Figure 1 Before use, place the device on the upper end of the conveyor belt and install the base plate 1 on the mounting brackets on both sides of the conveyor belt with bolts.

[0044] Reference Figures 2-3 During processing, the staff places the bottle cap on the bottle, pre-tightens it, and then places it on the conveyor belt. The conveyor belt moves the bottle. After the bottle moves a certain distance, it moves to the bottom of the rotating gripper 8. At this time, the conveyor belt stops working. At this time, the clamping cylinder 9 drives the bottle clamping plates 1022 connected to its drive end to move closer to each other. After the two sets of bottle clamping plates 1022 move closer to each other, they clamp the bottle body.

[0045] After the bottle clamping plate 1022 clamps the bottle, the second drive motor 3 drives the lead screw 4 connected to its drive end to rotate. At this time, under the rotation drive of the lead screw 4, the lead screw sleeve 401 will drive the lifting plate 5 to move down. The downward movement of the lifting plate 5 will synchronously drive the rotating pneumatic gripper 8 and the bottle cap chuck 801 to move down. When the bottle cap chuck 801 moves down a certain distance, the downward movement distance of the lifting plate 5 reaches the set displacement value. At this time, the bottle cap chuck 801 will be flush with the bottle cap and can fully wrap the bottle cap. At this time, the bottle cap chuck 801 clamps the bottle cap.

[0046] When the bottle cap chuck 801 clamps the bottle cap, the first drive motor 6 drives the torque sensor 7 and the rotating pneumatic gripper 8 to rotate, thereby causing the bottle cap chuck 801 to tighten the bottle cap.

[0047] It should be noted that the torque sensor 7 is a commercially available torque force sensor, and the torque sensor 7 is electrically connected to the external PLC control system.

[0048] During the process of tightening the bottle cap, the torque sensor 7 will synchronously transmit the torque value to the PLC control system and compare it with the torque value preset by the PLC control system. When the real-time torque value reaches the set torque value, the first drive motor 6 stops working.

[0049] When the bottle clamping plate 1022 resets and opens the bottle body, and the bottle cap clamp 801 resets and no longer clamps the bottle cap, the second drive motor 3 drives the lead screw 4 to rotate in the opposite direction, and the lifting plate 5 can slide up and reset synchronously. At this time, the conveyor belt can be started again to transport out the qualified capped bottles.

[0050] The torque sensor 7 installed in the device records the torque value in real time during the capping process and transmits the torque value to the PLC control system for comparison with the preset torque value. This allows the device to detect whether the cap is fully tightened when the first drive motor 6 drives the cap clamp 801 to tighten the cap, thus solving the problem in the prior art where some caps may not be tightened properly, which can easily cause liquid leakage.

[0051] A limiting sleeve 1011 is fixedly connected to the lifting plate 5, and the limiting sleeve 1011 is slidably connected to the first column 101.

[0052] Reference Figure 4 By sliding the limiting sleeve 1011 on the first column 101, the lifting plate 5 can be laterally limited, thereby ensuring the lifting stability of the lifting plate 5.

[0053] Both the first drive motor 6 and the second drive motor 3 are servo motors.

[0054] Example 2:

[0055] A servo capping device for cosmetic product manufacturing is basically the same as that in Example 1 during actual production. However, the following defects may occur during the capping process:

[0056] When the torque value reaches the set value, the displacement distance of the second drive motor 3 driving the lifting plate 5 to move down is less than the set value. At this time, the bottle cap chuck 801 clamps the upper side of the bottle cap, and the capping is unqualified.

[0057] When the second drive motor 3 drives the lifting plate 5 to move down to the maximum limit, the first drive motor 6 drives the bottle cap clamp 801 to rotate, but the torque value of the torque sensor 7 is always less than the set value, and the capping will fail.

[0058] When a capping defect occurs, the external PLC control system will alert the staff, who can then remove the defective product from the conveyor belt. In this case, the defective product will not be transported to the next processing step via the conveyor belt, thus improving the yield rate.

[0059] The circuits and controls involved in this utility model are all existing technologies, and will not be described in detail here.

[0060] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A servo cap screwing apparatus for cosmetic product production, characterized by, The utility model relates to a bottle cap opening and closing device, including: The first stand (101) and second stand (102) are fixedly connected on the bottom plate (1); The first stand (101) is slidably connected with the lifting plate (5); The first drive motor (6) is fixedly connected on the lifting plate (5); The torsion sensor (7) is connected on the drive end of the first drive motor (6) through the shaft coupling; The rotary air claw (8) is connected on the bottom of the torsion sensor (7) through the shaft coupling; The drive end of the rotary air claw (8) is fixedly connected with the bottle cap chuck (801); The second stand (102) is connected with the mounting plate (1021); The holding air cylinder (9) is fixedly connected on the mounting plate (1021); The symmetrical bottle clamping plate (1022) is fixedly connected on the drive end of the holding air cylinder (9); The bottle clamping plate (1022) is located directly below the bottle cap chuck (801).

2. The servo cap screwing apparatus for cosmetic product manufacturing according to claim 1, characterized in that, The first stand (101) is fixedly connected with the top plate (2) on the top, the second drive motor (3) is fixedly connected on the top plate (2), the drive end of the second drive motor (3) is fixedly connected with the lead screw (4), the lead screw sleeve (401) is fixedly connected on the lifting plate (5), and the lead screw (4) is threadedly connected with the lead screw sleeve (401).

3. The cosmetic product production servo cap screwing apparatus according to claim 2, characterized by The limiting sliding sleeve (1011) is fixedly connected on the lifting plate (5), and the limiting sliding sleeve (1011) is slidably connected with the first stand (101).

4. The cosmetic product production servo cap screwing apparatus according to claim 2, characterized by The first drive motor (6) and the second drive motor (3) are both servo motors.