Novel gland mechanism
By using a servo electric cylinder structure to drive the bottle cap bottom mold in the capping machine, the problems of high maintenance costs, oil leakage and large energy loss of the hydraulic system are solved, and more efficient and reliable capping operation is achieved, meeting the high precision and high speed requirements of modern production lines.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-07
- Publication Date
- 2026-03-24
AI Technical Summary
Traditional hydraulic systems in capping machines suffer from high maintenance costs, oil leakage, large energy loss, slow response speed, and temperature sensitivity, making it difficult to meet the high precision and high speed requirements of modern production lines.
It adopts a servo electric cylinder structure, using the thrust of the electric cylinder piston rod to drive the bottom mold of the bottle cap, replacing the traditional hydraulic system to realize the capping operation.
It eliminates the leakage problem of the hydraulic system, reduces costs and energy consumption, improves system efficiency, and meets the high precision and high speed requirements of modern production lines.
Smart Images

Figure CN224030598U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of capping machine, especially relates to a novel capping mechanism. BACKGROUND
[0002] As a kind of packing equipment widely used in food, beverage, pharmaceutical and other industries, the main function of capping machine is the mechanical that makes plastic raw material press into bottle cap by exerting certain pressure. Traditional capping machine mostly uses hydraulic system as power source, and realizes capping action by using the pressure transmission of hydraulic oil. Although hydraulic system has certain advantages in providing larger output force and smooth movement, with the continuous improvement of industrial automation and environmental protection requirements, the application of hydraulic system in capping machine gradually exposes many drawbacks.
[0003] Firstly, the maintenance cost of hydraulic system is high. Hydraulic system is composed of complex components such as hydraulic pump, hydraulic cylinder, control valve, oil tank and pipeline, and these parts need regular maintenance and replacement, especially the aging problem of hydraulic oil and sealing element, which increases the difficulty and cost of equipment maintenance. Secondly, hydraulic system is prone to oil leakage, which not only causes environmental pollution, but also affects the normal operation of equipment and reduces production efficiency. In addition, the energy loss of hydraulic system is large during operation, especially in the state of no load or low load, the system efficiency is low, which leads to energy waste. The noise generated by hydraulic pump and valve during work will affect the working environment, and the response speed of system is slow, which is difficult to meet the requirements of modern production line for high precision and high speed. Finally, the viscosity of hydraulic oil is sensitive to temperature change, and in extreme temperature conditions, the performance of system may be affected, leading to unstable capping quality. In summary, although hydraulic system has played an important role in capping machine, its inherent drawbacks have gradually become the bottleneck restricting the performance improvement of equipment. Therefore, exploring more efficient, environmentally friendly and reliable power system to replace hydraulic system has become an important direction of capping machine technology development.
[0004] Therefore, how to provide a novel capping mechanism capable of solving the above technical problems is one of the problems urgently needed to be solved by those skilled in the art. INVENTION CONTENTS
[0005] In order to solve the above problems, the utility model adopts servo electric cylinder structure, and uses the thrust of electric cylinder piston rod as the driving force and pressing force of bottle cap bottom die. The utility model adopts the following technical scheme:
[0006] The utility model provides a novel capping mechanism, including capping machine frame, the upper end of capping machine frame is provided with a plurality of pressure head assemblies, and the lower end of capping machine frame is provided with a plurality of bottle cap bottom die assemblies corresponding to the pressure head assemblies one by one.
[0007] Each of the bottle cap bottom die assembly includes a bottle cap bottom die, an electric cylinder and a bottom die connecting piece; the electric cylinder is fixedly arranged at the bottom of the capping machine frame; the bottom die connecting piece is fixedly connected with the piston rod of the electric cylinder at the lower end, and is fixedly connected with the bottle cap bottom die at the upper end.
[0008] Preferably, the upper end of the capping machine frame is provided with a pressure head mounting seat, and the middle part is provided with a bottle cap bottom die mounting seat; a plurality of pressure head assemblies are uniformly distributed on the pressure head mounting seat; the bottle cap bottom dies are uniformly distributed on the bottle cap bottom die mounting seat, and the bottom die connecting pieces are arranged through the inside of the bottle cap bottom die mounting seat.
[0009] Preferably, the bottom die connecting piece is further sleeved with a mounting plate for fixed connection with the bottle cap bottom die mounting seat.
[0010] Preferably, the lower part of the bottle cap bottom die mounting seat is connected with an electric cylinder supporting ring through a plurality of connecting rods.
[0011] Preferably, the bottom die connecting piece is sequentially sleeved with a fixed plate and a limiting seat from top to bottom; the electric cylinder is fixedly installed on the electric cylinder supporting ring; the upper end of the piston rod of the electric cylinder is fixedly connected with the bottom die connecting piece; the fixed plate is sleeved on the outer circle of the bottom die connecting piece and is in sliding connection with the bottom die connecting piece, and the upper end of the fixed plate is fixedly connected with the bottom die mounting seat; a guide rod is fixedly arranged on the inner side of one end of the piston rod of the electric cylinder, and the guide rod is in sliding connection with the limiting seat; another hole arranged on the limiting seat is sleeved on the outer circle of the bottom die connecting piece and is fixedly connected with the bottom die connecting piece, so as to prevent the piston rod of the electric cylinder from running out of position.
[0012] Beneficial effects:
[0013] The electric cylinder is fixedly connected with the electric cylinder supporting ring which is fixedly connected with the capping machine frame, and the piston rod of the electric cylinder is fixedly connected with the bottle cap bottom die through the bottom die connecting piece; the capping operation is realized by the reciprocating movement of the piston rod of the electric cylinder, the opening and closing of the bottle cap bottom die, and the capping operation of the capping machine; the original hydraulic system leakage and other defects are eliminated, the hydraulic station is saved, the cost is greatly saved, the energy consumption is reduced, and the system efficiency is effectively improved. BRIEF DESCRIPTION OF DRAWINGS
[0014] Fig. 1 A three-dimensional structure schematic view of a novel capping mechanism is provided in the utility model;
[0015] Fig. 2 A structure schematic view of a transmission system in the utility model.
[0016] Wherein: 1, the machine frame of capping machine; 2, the mounting seat of pressing head; 21, the pressing head assembly; 3, the mounting seat of cap bottom die; 31, connecting rod; 4, electric cylinder support ring; 5, electric cylinder; 51, piston rod; 52, guide rod; 6, limit seat; 7, fixed plate; 8, bottom die connecting piece; 81, mounting plate; 9, cap bottom die. DETAILED DESCRIPTION
[0017] Example 1
[0018] Reference Figs. 1-2 A new capping mechanism shown in the figure, including the machine frame of capping machine 1, the machine frame of capping machine 1 upper end is provided with a plurality of pressing head assemblies 21, the machine frame of capping machine 1 lower end is provided with a plurality of groups of cap bottom die assemblies corresponding to the pressing head assemblies 21;Each group of cap bottom die assemblies includes cap bottom die 9, electric cylinder 5 and bottom die connecting piece 8;Electric cylinder 5 is fixedly arranged on the bottom of the machine frame of capping machine 1;The lower end of the bottom die connecting piece 8 is fixedly connected with the piston rod 51 of the electric cylinder 5, and the upper end thereof is fixedly connected with the cap bottom die 9.The machine frame of capping machine 1 upper end is provided with the mounting seat of pressing head 2 and the middle part is provided with the mounting seat of cap bottom die 3;A plurality of pressing head assemblies 21 are uniformly distributed on the mounting seat of pressing head 2;The cap bottom die 9 is uniformly distributed on the mounting seat of cap bottom die 3, and the bottom die connecting piece 8 is arranged through the inside of the mounting seat of cap bottom die 3.
[0019] As a preferred or optional mode of the embodiment, the bottom die connecting piece 8 is further sleeved with a mounting plate 81 for fixed connection with the mounting seat of cap bottom die 3.
[0020] As a preferred or optional mode of the embodiment, the lower part of the mounting seat of cap bottom die 3 is connected with the electric cylinder support ring 4 through a plurality of connecting rods 31.
[0021] As a preferred or optional mode of the embodiment, the bottom die connecting piece 8 is sequentially sleeved with a fixed plate 7 and a limit seat 6 from top to bottom;The electric cylinder 5 is fixedly installed on the electric cylinder support ring 4;The upper end of the piston rod of the electric cylinder 5 is fixedly connected with the bottom die connecting piece 8, the fixed plate 7 is sleeved on the outer circle of the bottom die connecting piece 8 and is in sliding connection with the bottom die connecting piece 8, the upper end thereof is fixedly connected with the mounting seat of bottom die 3, one end of the fixed plate 7 is fixedly arranged with a guide rod 52 on the inside of the piston rod 51, and the guide rod 52 is in sliding connection with the limit seat 6, another hole provided on the limit seat 6 is sleeved on the outer circle of the bottom die connecting piece 8 and is fixedly connected with the bottom die connecting piece, for preventing the piston rod 51 of the electric cylinder from running out of position.
[0022] The utility model discloses a kind of novel capping mechanisms, including the machine frame of capping machine 1, the machine frame of capping machine 1 upper end is provided with a plurality of pressing head assemblies 21, the machine frame of capping machine 1 lower end is provided with a plurality of groups of cap bottom die assemblies corresponding to the pressing head assemblies 21;Each group of cap bottom die assemblies includes cap bottom die 9, electric cylinder 5 and bottom die connecting piece 8;Electric cylinder 5 is fixedly arranged on the bottom of the machine frame of capping machine 1;The lower end of the bottom die connecting piece 8 is fixedly connected with the piston rod 51 of the electric cylinder 5, and the upper end thereof is fixedly connected with the cap bottom die 9.The machine frame of capping machine 1 upper end is provided with the mounting seat of pressing head 2 and the middle part is provided with the mounting seat of cap bottom die 3;A plurality of pressing head assemblies 21 are uniformly distributed on the mounting seat of pressing head 2;The cap bottom die 9 is uniformly distributed on the mounting seat of cap bottom die 3, and the bottom die connecting piece 8 is arranged through the inside of the mounting seat of cap bottom die 3.
[0023] The above is only the preferred embodiment of the present application, and does not limit the technical scope of the present application in any way. Therefore, any slight modification, equivalent change and modification of the above embodiment according to the technical essence of the present application still falls within the scope of the technical solution of the present application.
Claims
1. A novel capping mechanism, comprising a capping machine frame (1), characterized in that, The upper end of the capping machine frame (1) is provided with several pressure head assemblies (21), and the lower end of the capping machine frame (1) is provided with several sets of bottle cap bottom mold assemblies corresponding to the pressure head assemblies (21); Each set of bottle cap bottom mold assembly includes a bottle cap bottom mold (9), an electric cylinder (5) and a bottom mold connector (8); the electric cylinder (5) is fixedly installed at the bottom of the capping machine frame (1); the lower end of the bottom mold connector (8) is fixedly connected to the piston rod (51) of the electric cylinder (5), and its upper end is fixedly connected to the bottle cap bottom mold (9).
2. The novel capping mechanism according to claim 1, characterized in that, The capping machine frame (1) is provided with a pressure head mounting seat (2) at the upper end and a bottle cap bottom mold mounting seat (3) in the middle; a plurality of pressure head assemblies (21) are evenly distributed on the pressure head mounting seat (2); the bottle cap bottom molds (9) are evenly distributed on the bottle cap bottom mold mounting seat (3), and the bottom mold connector (8) is provided through the inside of the bottle cap bottom mold mounting seat (3).
3. The novel capping mechanism according to claim 2, characterized in that, The bottom mold connector (8) is also fitted with an installation plate (81) for fixed connection with the bottle cap bottom mold mounting base (3).
4. The novel capping mechanism according to claim 3, characterized in that, The lower part of the bottle cap bottom mold mounting base (3) is connected to an electric cylinder support ring (4) via several connecting rods (31).
5. A novel capping mechanism according to claim 4, characterized in that, The bottom mold connector (8) is fitted with a fixing plate (7) and a limiting seat (6) from top to bottom; the electric cylinder (5) is fixedly installed on the electric cylinder support ring (4); the upper end of the piston rod of the electric cylinder (5) is fixedly connected to the bottom mold connector (8), the fixing plate (7) is fitted on the outer circle of the bottom mold connector (8) and slidably connected to the bottom mold connector (8), and its upper end is fixedly connected to the bottom mold mounting seat (3). The fixing plate (7) is fixedly provided with a guide rod (52) on the inner side of one end of the piston rod (51), and the guide rod (52) is slidably connected to the limiting seat (6). Another hole provided on the limiting seat (6) is fitted on the outer circle of the bottom mold connector (8) and fixedly connected to the bottom mold connector to prevent the electric cylinder piston rod (51) from running out of position.