Electric capping machine with high operation efficiency
By using a positioning system driven by a bidirectional lead screw and sensors, combined with a servo motor and hydraulic cylinder, the electric capping machine achieves automatic positioning and continuous capping, solving the problems of poor product centering and low operating efficiency, and improving capping quality and efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI HESHENG COSMETIC CO LTD
- Filing Date
- 2025-08-01
- Publication Date
- 2026-05-19
AI Technical Summary
Existing electric capping machines cannot adequately ensure product centering, affecting the quality of capping operations. Furthermore, they cannot perform continuous automatic capping operations, increasing the workload of workers and reducing operational efficiency.
The system uses a bidirectional lead screw to drive the positioning rod to move synchronously. Combined with a conveyor belt, photoelectric sensors, and a controller, it realizes automatic product positioning and capping operations. The positioning plate and pressure plate are driven by a servo motor and hydraulic cylinder. A pressure sensor is set up to detect the squeezing force to ensure the quality and efficiency of capping.
It enables automatic centering and continuous capping of products, improves work efficiency, reduces reliance on manpower, ensures capping quality, and facilitates the installation, disassembly, and maintenance of positioning plates and pressure plates.
Smart Images

Figure CN224258222U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of capping machine technology, specifically to an electric capping machine with high operating efficiency. Background Technology
[0002] Electric capping machines are bottle capping devices widely used in industrial fields. They are specifically designed to efficiently and accurately complete the capping operation.
[0003] An existing patent (publication number: CN207671653U) discloses an electric capping machine that eliminates the need for workers to manually hold bottles or filled products during capping, thus improving safety. It also enhances the stability of the moving piston rod during operation and allows for adjustment of the distance between the machine and the pressure block based on the height of the bottle or filled product, improving adaptability. Furthermore, it facilitates the replacement of the pressure block, improving reliability. The machine includes a worktable, a support, an electric cylinder, and a pressure block. A moving piston rod is mounted on the bottom output end of the electric cylinder. It also includes a placement platform located on the front half of the top of the worktable. Additionally, it includes a first and a second reinforcing device, respectively positioned on the left and right sides of the top of the placement platform. Furthermore, it includes two sets of first connecting rods, two sets of second connecting rods, and a reinforcing ring, with the reinforcing ring fitted onto the moving piston rod. Finally, it includes a third connecting rod located at the top of the pressure block.
[0004] While the aforementioned electric capping machine can position the product, it cannot guarantee that the product will be centered, which can easily affect the quality of subsequent capping operations. Furthermore, the aforementioned capping machine cannot perform continuous automatic capping operations, making it highly dependent on manual labor, increasing the workload of workers, and reducing work efficiency. Utility Model Content
[0005] To address the shortcomings of existing technologies, this application provides a high-efficiency electric capping machine that can center and position products to ensure the quality of subsequent capping operations. It also has the advantages of automatic continuous processing, improving processing efficiency and saving manpower. This solves the problems of existing electric capping machines being unable to ensure product centering, which easily affects the quality of subsequent capping operations, and being unable to perform continuous automatic capping operations, which greatly depends on manpower, increases the workload of workers, and reduces work efficiency.
[0006] To achieve the above objectives, this application provides the following technical solution: a high-efficiency electric capping machine, comprising a frame, a bracket fixedly connected to the upper surface of the frame, a hydraulic cylinder fixedly connected to the top of the bracket, a bidirectional lead screw rotatably connected inside the frame, two connecting plates threadedly connected to the outer circumferential surface of the bidirectional lead screw, two positioning rods slidably connected inside the bracket, the ends of the connecting plates away from the bidirectional lead screw being fixedly sleeved with the outer circumferential surfaces of the positioning rods respectively, and mounting seats provided at the output end of the hydraulic cylinder and the ends of the two positioning rods close to each other.
[0007] The mounting base includes a base with four sliding rods slidably connected inside. A fixing plate is fixedly connected to one end of each sliding rod away from the base. A positioning plate is fixedly connected to the outer surface of the fixing plate located on one side of the positioning rod. A pressure plate is fixedly connected to the outer surface of the fixing plate located below the hydraulic cylinder. The base is slidably sleeved with the positioning rod and the output end of the hydraulic cylinder through internal slots. Positioning holes are provided at the output ends of both the positioning rod and the hydraulic cylinder. A connecting rod is threaded into the interior of each base, and the connecting rod is inserted into the positioning hole. A nut is threaded onto the outer circumference of each connecting rod. A pressure sensor is fixedly connected to the side of each base near the fixing plate. A photoelectric sensor is fixedly connected to the inner wall of the frame. A controller is provided on the upper surface of the support. A conveyor belt is provided inside the frame.
[0008] The above solution addresses the issue that existing electric capping machines cannot effectively center the product, which can negatively impact the quality of subsequent capping operations. Furthermore, they cannot perform continuous automatic capping, relying heavily on manual labor, increasing worker workload, and reducing efficiency. By using a bidirectional lead screw that rotates, the positioning rod moves synchronously in opposite directions under the action of the connecting plate. This causes the mounting base to move the positioning plate synchronously, thus centering the product and ensuring capping quality. By incorporating a conveyor belt, photoelectric sensors, and a controller, the system can automatically detect the product and complete the positioning and capping operations, improving processing efficiency and saving manpower.
[0009] Furthermore, a servo motor is fixedly connected inside the frame, and a drive gear is fixedly sleeved at the output end of the servo motor. A driven gear is fixedly sleeved on the outer circumferential surface of the bidirectional lead screw, and the driven gear meshes with the drive gear.
[0010] Through the above scheme, the servo motor can drive the bidirectional lead screw to rotate under the action of the driving gear and the driven gear, thereby providing power to the bidirectional lead screw, and finally enabling the positioning plate to open and close automatically, and automatically complete the product positioning operation.
[0011] Furthermore, two first limiting rings are fixedly sleeved on the outer circumferential surface of the bidirectional lead screw, and the side of the first limiting rings near the frame contacts the outer surface of the frame respectively.
[0012] The above scheme restricts the lateral movement of the bidirectional lead screw, thereby increasing the stability of its motion.
[0013] Furthermore, the two positioning plates are symmetrically arranged, and the side of the two positioning plates that are close to each other is an arc-shaped structure. Rubber gaskets are fixedly connected to the arc-shaped inner walls of the two positioning plates.
[0014] The above solution, with its curved surface structure and rubber gasket design, allows the positioning plate to fit tightly against the bottle, improving the stability and accuracy of bottle positioning. The rubber gasket also acts as a buffer, reducing damage to the bottle during the positioning process.
[0015] Furthermore, the bottom surface of the pressure plate is a flat surface, and a rubber gasket is fixedly connected to the bottom surface of the pressure plate.
[0016] The above-mentioned design ensures uniform pressure distribution during the capping process, guaranteeing capping quality. The rubber gasket on its bottom surface provides protection, preventing damage to the product from direct compression.
[0017] Furthermore, a support plate is fixedly connected to the inner wall of the frame, the outer surface of the support plate is in contact with the inner wall of the conveyor belt, and the support plate is located directly below the pressure plate.
[0018] The above solution enables the support plate to support the product during the capping process, preventing damage to the conveyor belt and improving the stability of the capping operation.
[0019] Furthermore, a second limiting ring is fixedly sleeved on the outer circumferential surface of each slide rod, and the second limiting ring is located on the side of the base away from the fixed plate.
[0020] The above solution restricts the sliding rod, preventing it from easily separating from the base and causing damage to the mounting bracket.
[0021] Furthermore, two auxiliary belts are fixedly connected to the outer surface of the conveyor belt, and the two auxiliary belts are symmetrically arranged at both ends of the conveyor belt.
[0022] The above solution allows the auxiliary belt design to provide guidance to staff and help to center the product, facilitating subsequent product positioning.
[0023] Compared with the prior art, the technical solution of this application has the following beneficial effects:
[0024] This high-efficiency electric capping machine uses a bidirectional lead screw to rotate, which, under the action of the connecting plate, drives the positioning rod to move synchronously in the opposite direction. This causes the mounting base to move the positioning plate synchronously, thus centering the product and ensuring capping quality. By incorporating a conveyor belt, photoelectric sensors, and a controller, the machine can automatically detect the product and complete the positioning and capping operations, improving processing efficiency and saving manpower. The mounting base facilitates the installation and disassembly of the positioning plate and pressure plate, as well as subsequent disassembly and maintenance. A pressure sensor inside the mounting base can detect the positioning force of the positioning plate and the squeezing force of the pressure plate, preventing excessive squeezing and product damage. This solves the problems of existing electric capping machines, such as inability to ensure product centering, which can affect capping quality, inability to perform continuous automatic capping operations, high dependence on manpower, and low operating efficiency. Attached Figure Description
[0025] Figure 1 This is a three-dimensional structural diagram of the entire application;
[0026] Figure 2 This is a schematic diagram of the overall bidirectional lead screw structure of this application;
[0027] Figure 3 This is a structural diagram of the positioning plate in this application;
[0028] Figure 4 This is a structural diagram of the pressure plate in this application;
[0029] Figure 5 This is a structural diagram of the mounting base for this application.
[0030] In the picture:
[0031] 1. Frame; 2. Support; 3. Hydraulic cylinder; 4. Double-acting lead screw; 5. Connecting plate; 6. Positioning rod; 7. Mounting base; 701. Base; 702. Slide rod; 703. Fixing plate; 704. Connecting rod; 705. Nut; 706. Second limit ring; 8. Positioning plate; 9. Pressure plate; 10. Positioning hole; 11. Pressure sensor; 12. Photoelectric sensor; 13. Controller; 14. Conveyor belt; 15. Servo motor; 16. Drive gear; 17. Driven gear; 18. First limit ring; 19. Support plate; 20. Auxiliary belt. Detailed Implementation
[0032] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0033] Please see Figure 1 , Figure 2 and Figure 5 This embodiment of an electric capping machine with high operating efficiency includes a frame 1. A bracket 2 is fixedly connected to the upper surface of the frame 1. A hydraulic cylinder 3 is fixedly connected to the top of the bracket 2. A double-acting screw 4 is rotatably connected inside the frame 1. Two connecting plates 5 are threadedly connected to the outer circumference of the double-acting screw 4. Two positioning rods 6 are slidably connected inside the bracket 2. The end of the connecting plate 5 away from the double-acting screw 4 is fixedly sleeved with the outer circumference of the positioning rod 6. The output end of the hydraulic cylinder 3 and the end of the two positioning rods 6 that are close to each other are provided with mounting seats 7.
[0034] Please see Figure 3 , Figure 4 and Figure 5 The mounting base 7 includes a base 701. Four sliding rods 702 are slidably connected inside the base 701. A fixing plate 703 is fixedly connected to one end of the four sliding rods 702 away from the base 701. A positioning plate 8 is fixedly connected to the outer surface of the fixing plate 703 located on one side of the positioning rod 6. A pressure plate 9 is fixedly connected to the outer surface of the fixing plate 703 located below the hydraulic cylinder 3. The base 701 is slidably sleeved with the output ends of the positioning rod 6 and the hydraulic cylinder 3 through internal slots. The output ends of the positioning rod 6 and the hydraulic cylinder 3 are provided with positioning holes 10. A connecting rod 704 is threadedly connected inside each base 701. The connecting rod 704 is inserted into the positioning hole 10. A nut 705 is threadedly connected to the outer circumferential surface of each connecting rod 704. A pressure sensor 11 is fixedly connected to the side of each base 701 near the fixing plate 703.
[0035] Please see Figure 1 A photoelectric sensor 12 is fixedly connected to the inner wall of the frame 1, a controller 13 is provided on the upper surface of the support 2, and a conveyor belt 14 is provided inside the frame 1.
[0036] Please see Figure 1 and Figure 2 A servo motor 15 is fixedly connected inside the frame 1. A drive gear 16 is fixedly sleeved at the output end of the servo motor 15. A driven gear 17 is fixedly sleeved on the outer circumference of the bidirectional lead screw 4. The driven gear 17 meshes with the drive gear 16. The servo motor 15 can drive the bidirectional lead screw 4 to rotate under the action of the drive gear 16 and the driven gear 17, thereby providing power to the bidirectional lead screw 4, and finally causing the positioning plate 8 to open and close automatically, and automatically complete the product positioning operation.
[0037] Please see Figure 1 and Figure 2Two first limiting rings 18 are fixedly sleeved on the outer circumferential surface of the bidirectional lead screw 4. The side of the first limiting ring 18 closest to the frame 1 contacts the outer surface of the frame 1 respectively, thereby restricting the bidirectional lead screw 4, preventing the bidirectional lead screw 4 from moving laterally, and increasing the stability of the movement of the bidirectional lead screw 4.
[0038] Please see Figure 1 , Figure 2 and Figure 3 Two positioning plates 8 are symmetrically arranged, and the side of the two positioning plates 8 that is close to each other is an arc-shaped structure. Rubber gaskets are fixedly connected to the arc-shaped inner walls of the two positioning plates 8. The arc-shaped structure of the positioning plates 8 and the design of the rubber gaskets enable them to fit tightly against the bottle body, improving the stability and accuracy of positioning the bottle body. The rubber gaskets also play a buffering role, reducing damage to the bottle body during the positioning process.
[0039] Please see Figure 1 , Figure 2 and Figure 4 The bottom surface of the pressure plate 9 is flat, and a rubber gasket is fixedly connected to the bottom surface of the pressure plate 9. The flat design of the pressure plate 9 can ensure the uniform distribution of pressure during the capping process and ensure the quality of the capping. The rubber gasket on its bottom surface can play a certain protective role and avoid direct compression that could damage the product.
[0040] Please see Figure 2 A support plate 19 is fixedly connected to the inner wall of the frame 1. The outer surface of the support plate 19 is in contact with the inner wall of the conveyor belt 14. The support plate 19 is located directly below the pressure plate 9. The support plate 19 can support the product during the capping process, prevent damage to the conveyor belt 14, and improve the stability of the product capping operation.
[0041] Please see Figure 3 , Figure 4 and Figure 5 Each slide rod 702 has a second limiting ring 706 fixedly sleeved on its outer circumferential surface. The second limiting ring 706 is located on the side of the base 701 away from the fixing plate 703, which restricts the slide rod 702 and prevents the slide rod 702 from easily separating from the base 701, causing damage to the mounting base 7.
[0042] Please see Figure 1 Two auxiliary belts 20 are fixedly connected to the outer surface of the conveyor belt 14. The two auxiliary belts 20 are symmetrically arranged at both ends of the conveyor belt 14. The design of the auxiliary belts 20 can provide guidance to the staff and help the auxiliary products to be placed in the center, which is convenient for the positioning of subsequent products.
[0043] This embodiment presents a high-efficiency electric capping machine. When the bidirectional lead screw 4 rotates, it moves the positioning rod 6 synchronously in the opposite direction under the action of the connecting plate 5. This causes the mounting base 7 to synchronously raise and lower the positioning plate 8, thereby centering the product and ensuring capping quality. By incorporating a conveyor belt 14, photoelectric sensor 12, and controller 13, the machine can automatically detect the product and complete the product positioning and capping operations, improving processing efficiency and saving manpower. The mounting base 7 facilitates the installation and disassembly of the positioning plate 8 and the pressure plate 9, as well as subsequent disassembly and maintenance. A pressure sensor 11 inside the mounting base 7 can detect the positioning force of the positioning plate 8 and the squeezing force of the pressure plate 9, preventing excessive squeezing and product damage. This solves the problems of existing electric capping machines, which cannot effectively ensure product centering, easily affecting capping quality, cannot perform continuous automatic capping operations, are highly dependent on manpower, and have low operating efficiency.
[0044] It should be noted that the bottom of the frame 1 is equipped with a support frame, which can provide stable support for the overall structure of the capping machine. A motor for driving the conveyor belt 14 is provided on one side of the frame 1.
[0045] The working principle of the above embodiments is as follows:
[0046] During the capping operation, the product is placed centered on the conveyor belt 14. The conveyor belt 14 is started to move the product forward. The photoelectric sensor 12 can detect the product. When the product is detected, the photoelectric sensor 12 will feed back the detection result to the controller 13. The controller 13 will then stop the conveyor belt 14 and start the servo motor 15. Under the action of the drive gear 16 and the driven gear 17, the double-acting lead screw 4 will rotate. The double-acting lead screw 4 will drive the positioning rod 6 to move in the opposite direction through the connecting plate 5. The positioning rod 6 will drive the positioning plate 8 to move inward through the mounting base 7. The two arc-shaped positioning plates 8 will clamp the product and center it. When the positioning plate 8 squeezes and positions the product, the pressure sensor 11 inside the mounting base 7 on one side will detect the squeezing force and feed back the detection result to the controller 13. When the squeezing force reaches the specified value, the pressure sensor 11 will detect the squeezing force and feed back the detection result to the controller 13. When the preset optimal pressure is reached, the controller 13 shuts down the servo motor 15 and starts the hydraulic cylinder 3 to drive the pressure plate 9 downward through the mounting base 7. After the pressure plate 9 moves to the bottom, the product capping operation is completed. When the pressure plate 9 presses down, the pressure sensor 11 inside the mounting base 7 above it will detect the squeezing force during the capping process and feed the detection result back to the controller 13. When the capping pressure reaches the preset optimal pressure, the controller 13 shuts down the hydraulic cylinder 3, then moves the pressure plate 9 upward, moves the positioning plate 8 back, and restarts the conveyor belt 14 to carry out the next product capping operation. The connecting rod 704 and nut 705 can be used to connect and fix the mounting base 7 and the positioning rod 6, and the output end of the mounting base 7 and the hydraulic cylinder 3 through the positioning hole 10, so as to facilitate the installation and disassembly of the mounting base 7, and thus facilitate the disassembly and maintenance of the positioning plate 8 and the pressure plate 9.
[0047] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0048] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A high-efficiency electric capping machine, comprising a frame (1), characterized in that: A bracket (2) is fixedly connected to the upper surface of the frame (1), and a hydraulic cylinder (3) is fixedly connected to the top of the bracket (2). A two-way lead screw (4) is rotatably connected inside the frame (1). Two connecting plates (5) are threadedly connected to the outer circumference of the two-way lead screw (4). Two positioning rods (6) are slidably connected inside the bracket (2). The end of the connecting plate (5) away from the two-way lead screw (4) is fixedly sleeved with the outer circumference of the positioning rod (6). The output end of the hydraulic cylinder (3) and the end of the two positioning rods (6) that are close to each other are provided with mounting seats (7). The mounting base (7) includes a base (701), and four sliding rods (702) are slidably connected inside the base (701). A fixing plate (703) is fixedly connected to one end of the four sliding rods (702) away from the base (701). A positioning plate (8) is fixedly connected to the outer surface of the fixing plate (703) located on one side of the positioning rod (6). A pressure plate (9) is fixedly connected to the outer surface of the fixing plate (703) located below the hydraulic cylinder (3). The base (701) is slidably sleeved with the positioning rod (6) and the output end of the hydraulic cylinder (3) through the internal slots. The positioning rod (6) and the hydraulic cylinder (3) are slidably sleeved with the output end of the hydraulic cylinder (3). The output end of the cylinder (3) is provided with a positioning hole (10). Each base (701) is threaded with a connecting rod (704). The connecting rod (704) is inserted into the positioning hole (10). Each connecting rod (704) is threaded with a nut (705) on its outer circumference. Each base (701) is fixedly connected with a pressure sensor (11) on the side near the fixing plate (703). The inner wall of the frame (1) is fixedly connected with a photoelectric sensor (12). The upper surface of the bracket (2) is provided with a controller (13). The inside of the frame (1) is provided with a conveyor belt (14).
2. The electric capping machine with high operating efficiency according to claim 1, characterized in that: A servo motor (15) is fixedly connected inside the frame (1). A drive gear (16) is fixedly sleeved at the output end of the servo motor (15). A driven gear (17) is fixedly sleeved on the outer circumference of the bidirectional lead screw (4). The driven gear (17) meshes with the drive gear (16).
3. The electric capping machine with high operating efficiency according to claim 1, characterized in that: Two first limiting rings (18) are fixedly sleeved on the outer circumferential surface of the bidirectional lead screw (4). The side of the first limiting ring (18) close to the frame (1) contacts the outer surface of the frame (1).
4. The electric capping machine with high operating efficiency according to claim 1, characterized in that: The two positioning plates (8) are symmetrically arranged, and the side of the two positioning plates (8) that are close to each other is an arc surface structure. The arc-shaped inner wall of the two positioning plates (8) is fixedly connected with a rubber gasket.
5. The electric capping machine with high operating efficiency according to claim 1, characterized in that: The bottom surface of the pressure plate (9) is a plane, and a rubber gasket is fixedly connected to the bottom surface of the pressure plate (9).
6. The electric capping machine with high operating efficiency according to claim 1, characterized in that: The inner wall of the frame (1) is fixedly connected to a support plate (19), the outer surface of the support plate (19) is in contact with the inner wall of the conveyor belt (14), and the support plate (19) is located directly below the pressure plate (9).
7. The electric capping machine with high operating efficiency according to claim 1, characterized in that: Each of the slide bars (702) has a second limiting ring (706) fixedly sleeved on its outer circumferential surface. The second limiting ring (706) is located on the side of the base (701) away from the fixing plate (703).
8. The electric capping machine with high operating efficiency according to claim 1, characterized in that: Two auxiliary belts (20) are fixedly connected to the outer surface of the conveyor belt (14), and the two auxiliary belts (20) are symmetrically arranged at both ends of the conveyor belt (14).