Novel electric cylinder direct drive type piston cylinder device

Abstract

The utility model discloses a novel electric cylinder direct drive type piston cylinder device which comprises an electric cylinder arranged below a mounting plate and a piston cylinder base arranged at the upper end of the mounting plate, a piston cylinder is arranged on the piston cylinder base, a transition cylinder body is arranged at the upper end of the piston cylinder, and the upper end of the transition cylinder body is fixedly connected with one end of a three-way rotary valve. A valve plate driven by a cylinder to open or close is arranged at the other end of the three-way rotary valve; a piston is arranged in the piston cylinder, a sealing piece and a supporting ring are arranged on the piston, the piston is fixedly connected with one end of a piston rod, the other end of the piston rod downwards penetrates through the piston cylinder base, and the mounting plate is connected with an electric cylinder piston rod on the electric cylinder through a coupler; the axis of the piston rod coincides with that of the electric cylinder piston rod. The size and the weight of the device are reduced through the application of the electric cylinder, the whole structure is simple, the precision is high, the coaxiality between the piston rod and the electric cylinder piston rod is improved, the piston runs more stably, the service life of the piston cylinder and a sealing piece is prolonged, and the cost is indirectly reduced.

Description

Technical Field

[0001] This utility model belongs to the field of filling equipment and relates to a novel electric cylinder direct-drive piston cylinder device. Background Technology

[0002] In the field of filling equipment, piston cylinders are considered core components. Their operating status and quality directly affect the performance and service life of the filling equipment, and are also the key to whether the filling machine can operate stably.

[0003] Traditionally, piston cylinders were mostly driven by lead screws. This method relies on a motor and reducer to drive the lead screw up and down, which in turn moves the piston rod to move the piston up and down, thus completing the liquid filling process. However, this traditional drive device has many drawbacks. It is bulky, taking up a lot of space; its components are numerous, increasing the probability of failure; the installation process is complex, requiring highly skilled technicians; and the cost is high, including equipment purchase costs and subsequent maintenance costs. In addition, for piston cylinders with multiple filling heads, the center distance is difficult to control during installation, which brings great inconvenience to product processing and production.

[0004] Therefore, it is necessary to improve existing technologies to overcome their shortcomings. Utility Model Content

[0005] The purpose of this invention is to provide a novel electric cylinder direct-drive piston cylinder device to solve at least one problem in the background art.

[0006] The objective of this utility model is achieved through the following technical solution:

[0007] A novel electric cylinder direct-drive piston cylinder device includes an electric cylinder disposed below a mounting plate and a piston cylinder base disposed above the mounting plate. A piston cylinder is disposed on the piston cylinder base, and a transition cylinder body is disposed at the upper end of the piston cylinder. The upper end of the transition cylinder body is fixedly connected to one end of a three-way rotary valve, and a valve plate driven by a cylinder to open or close is disposed at the other end of the three-way rotary valve.

[0008] The piston cylinder contains a piston, which is equipped with a seal and a support ring. The piston is fixedly connected to one end of the piston rod, and the other end of the piston rod passes downward through the piston cylinder base and mounting plate and is connected to the electric cylinder piston rod on the electric cylinder via a coupling. The axis of the piston rod coincides with the axis of the electric cylinder piston rod.

[0009] As a further improvement of one embodiment of the present utility model, a spacer is provided between the mounting plate and the electric cylinder, and a stop structure is provided between the spacer and the mounting plate for positioning.

[0010] As a further improvement of one embodiment of the present utility model, the stop structure includes a first stop at the upper end where a spacer is provided, and a second stop on the lower end surface of the mounting plate. The first stop and the second stop cooperate to position the spacer and the mounting plate.

[0011] As a further improvement of one embodiment of the present invention, the first stop is a convex stop or a concave stop.

[0012] As a further improvement of one embodiment of the present utility model, the piston cylinder base is fixed to the mounting plate by bolts, the bottom of the piston cylinder base is provided with a third stop, and the upper surface of the mounting plate is provided with a fourth stop. The third stop and the fourth stop cooperate to realize the positioning of the piston cylinder base and the mounting plate.

[0013] As a further improvement of one embodiment of the present invention, the third stop is a convex stop or a concave stop.

[0014] As a further improvement of one embodiment of the present invention, a sealing ring is provided between the piston cylinder and the transition cylinder, and the piston cylinder and the transition cylinder are connected by a clamp.

[0015] As a further improvement of one embodiment of the present invention, a sealing ring is provided between the transition cylinder and the three-way rotary valve, and the transition cylinder and the three-way rotary valve are connected by a clamp.

[0016] The above technical solution has the following beneficial effects: the application of electric cylinders reduces the size and weight of the device, the overall structure is simple and highly precise, the coaxiality between the piston rod and the electric cylinder piston rod is improved, the piston operation is more stable, the service life of the piston cylinder and seals is extended, and the cost is indirectly reduced. Attached Figure Description

[0017] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0018] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0019] Figure 1 A schematic diagram of the first state structure provided by this utility model.

[0020] Figure 2 This is a schematic diagram of the second state structure provided by the present invention.

[0021] Figure 3 A schematic diagram of the third state structure provided by this utility model.

[0022] In the picture:

[0023] 1-Electric cylinder;

[0024] 2-Cylinder;

[0025] 3-Spacer;

[0026] 4-Coupling;

[0027] 5-Piston cylinder base;

[0028] 6-Piston rod;

[0029] 7-Piston;

[0030] 8-Piston cylinder;

[0031] 9-Transition cylinder block;

[0032] 10-Three-way rotary valve;

[0033] 11, 12 - Sealing rings;

[0034] 13-Mounting plate. Detailed Implementation

[0035] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0036] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0037] In this utility model, unless otherwise stated, directional terms such as "upper," "lower," "top," and "bottom" are generally used in relation to the direction shown in the accompanying drawings, or in relation to the vertical, perpendicular, or gravitational direction of the component itself; similarly, for ease of understanding and description, "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model. Example

[0038] See Figures 1-3As shown, a novel electric cylinder direct-drive piston cylinder device includes an electric cylinder 1 disposed below a mounting plate 13, which provides power output. A piston cylinder base 5 is disposed at the upper end of the mounting plate 13, and a piston cylinder 8 is securely mounted on the piston cylinder base 5. The upper end of the piston cylinder 8 is connected to a transition cylinder body 9, which serves as a transition connection. The upper end of the transition cylinder body 9 is fixedly connected to one end of a three-way rotary valve 10. Notably, the other end of the three-way rotary valve 10 is provided with a valve plate, which is driven by a cylinder 2 to open or close, thereby controlling the fluid passage.

[0039] A piston 7 is installed inside the piston cylinder 8, and a seal and a support ring are provided on the piston 7. The seal ensures the airtightness of the piston cylinder 8 and prevents liquid leakage; the support ring supports the piston 7 and keeps it stable during operation. The piston 7 is fixedly connected to one end of the piston rod 6, and the other end of the piston rod 6 passes downward through the piston cylinder base 5 and the mounting plate 13 and is connected to the electric cylinder piston rod on the electric cylinder 1 through a coupling 4.

[0040] In this novel electric cylinder direct-drive piston cylinder device, a spacer 3 is provided between the mounting plate 13 and the electric cylinder 1, which plays an important role. The spacer 3 not only provides a certain degree of isolation and buffering between the two, but also achieves precise positioning with the mounting plate 13 through a stop structure.

[0041] The stop structure specifically consists of a first stop located on the upper end of the spacer 3 and a second stop on the lower end face of the mounting plate 13. These two stops cooperate with each other. When the first stop is a convex stop (cylindrical protrusion), the second stop is correspondingly a concave stop (cylindrical groove), and vice versa, thereby achieving precise positioning of the spacer and the mounting plate.

[0042] Furthermore, the shape and size of the first and second stops can be adjusted according to actual installation requirements, as long as they can be tightly fitted and accurately positioned. This stop positioning method ensures the relative positional accuracy of the mounting plate 13 and the electric cylinder 1, which helps to improve the stability and reliability of the entire device.

[0043] In this embodiment, the piston cylinder base 5 is bolted to the mounting plate 13. This connection method is simple and reliable, ensuring a tight fit between the two. Simultaneously, a third stop is provided at the bottom of the piston cylinder base 5, and a corresponding fourth stop is provided on the upper surface of the mounting plate 13. When the third stop is a convex stop (cylindrical protrusion), the fourth stop is a concave stop (cylindrical groove), and vice versa. Through this convex-concave fit, precise positioning of the piston cylinder base 5 and the mounting plate 13 is achieved.

[0044] Similarly, the dimensions and shapes of the third and fourth stops can be flexibly adjusted according to actual installation requirements and design standards, as long as the fitting accuracy of the two can be guaranteed and the positioning requirements can be met. This combination of stop fitting positioning and bolt locking makes the piston cylinder base 5 more securely installed on the mounting plate 13, effectively improving the structural stability and operational reliability of the entire device.

[0045] This invention uses the cooperation of the first stop and the second stop, as well as the cooperation of the third stop and the fourth stop, to position each component from different positions, thus ensuring the accuracy of the entire mechanical structure.

[0046] This precise positioning is a crucial prerequisite for ensuring the coaxiality of piston rod 6 and the electric cylinder piston rod. When the axis of piston rod 6 coincides with the axis of electric cylinder piston rod, the piston 6 experiences more even force during operation within piston cylinder 8. This not only makes piston 6 run more smoothly but also reduces additional friction and impact caused by misalignment. For piston cylinder 8 and its seals, stable operating conditions significantly extend their service life and reduce replacement frequency, thereby indirectly lowering equipment maintenance and overall operating costs, and enhancing the cost-effectiveness and market competitiveness of the device.

[0047] In the connection structure between piston cylinder 8 and transition cylinder 9, a sealing ring 11 is provided between them, and a clamp is used for connection. The function of the sealing ring 11 is to ensure the sealing of the connection between piston cylinder 8 and transition cylinder 9, prevent internal fluid leakage, and thus ensure the normal operation of the entire device. The clamp connection is simple and efficient, and can provide sufficient tightening force to make piston cylinder 8 and transition cylinder 9 tightly combined.

[0048] Furthermore, the sealing ring 11 can be made of different materials and models, but the sealing performance meets the standards. The clamp can also be made of other connecting parts with the same fastening effect, such as a clamp.

[0049] Similarly, a sealing ring 12 is also provided between the transition cylinder 9 and the three-way rotary valve 10, and they are connected by a clamp. The sealing ring 12 ensures the sealing performance at this connection, and the clamp provides a stable connection. This connection and sealing design effectively ensures the sealing performance and structural stability of the fluid passage within the device, meeting the usage requirements of the device under different operating conditions.

[0050] This invention uses an electric cylinder 1 as the core driving element, which generates precise and stable power output. The piston rod of the electric cylinder 1 is tightly connected to the piston rod 6 of the piston cylinder 8 via a coupling, ensuring efficient power transmission. The piston 7 inside the piston cylinder 8 is securely connected to the piston rod 6, and the piston 7 is equipped with a seal and a support ring. The seal and support ring can be made of different materials and specifications depending on the working environment and liquid properties, as long as they meet the functional requirements of sealing and support. These components work together to ensure that no liquid leakage occurs when the piston 7 moves up and down within the piston cylinder 8.

[0051] The upper part of the transition cylinder 9 is connected to the piston cylinder 8 via a clamp, with a sealing ring installed in the middle of the connection to ensure a tight seal. Similarly, the upper part of the transition cylinder 9 is also connected to the three-way rotary valve 10 via a clamp, with a sealing ring installed at the connection. When the three-way rotary valve 10 is open and the piston 7 is located at the lower part of the piston cylinder 8, the liquid can smoothly fill the entire piston cylinder. At this time, the electric cylinder 1 starts to move, the electric cylinder piston rod extends, driving the piston 7 upward, injecting the liquid in the piston cylinder into the bottle or can. By precisely controlling the stroke of the electric cylinder 1, the volume of liquid injected each time can be kept consistent, thus completing a precise filling operation. Subsequently, the electric cylinder piston rod retracts, the three-way rotary valve reopens to continue injecting liquid into the piston cylinder 8, preparing for the next filling. This cycle repeats continuously, according to a pre-set rhythm and control program, enabling efficient and stable batch automatic filling, greatly improving production efficiency and filling accuracy.

[0052] In this device, each electric cylinder and each set of piston cylinders constitutes an independent unit and can be controlled individually. This design offers significant advantages, allowing for precise adjustment of the electric cylinder stroke and piston cylinder operation to meet different filling needs, resulting in more convenient and accurate operation. For multi-head filling equipment, this structure demonstrates great flexibility. Without altering other structural elements, the number of units can be freely increased or decreased according to the customer's actual needs. Whether for small production lines or large filling workshops, it can be quickly adapted through free combination, effectively improving equipment applicability and production efficiency.

[0053] Obviously, the embodiments described above are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0054] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0055] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0056] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A novel electric cylinder direct drive piston cylinder device, characterized by: The utility model provides a kind of pneumatic cylinder, including the electric cylinder being arranged below mounting plate, piston cylinder base being arranged in the upper end of mounting plate, piston cylinder is provided on the piston cylinder base, the upper end of the piston cylinder is provided with transition cylinder body, the upper end of the transition cylinder body is fixedly connected with one end of three-way rotary valve, the other end of the three-way rotary valve is provided with the valve plate that gas cylinder drives to open or close; The piston cylinder is provided with a piston, a sealing element and a support ring are arranged on the piston, the piston is fixedly connected with one end of a piston rod, the other end of the piston rod penetrates downward through the piston cylinder base, the mounting plate and the electric cylinder piston rod on the electric cylinder and is connected through a coupling; the axis of the piston rod coincides with the axis of the electric cylinder piston rod.

2. The novel electric cylinder direct drive piston cylinder device according to claim 1, characterized in that: A spacer sleeve is arranged between the mounting plate and the electric cylinder, and a stop structure is arranged between the spacer sleeve and the mounting plate for positioning.

3. The novel electric cylinder direct drive piston cylinder apparatus according to claim 2, characterized by: The stop structure includes a first stopper provided on the upper end of the spacer sleeve, a second stopper is provided on the lower end surface of the mounting plate, and the first stopper and the second stopper cooperate to position the spacer sleeve and the mounting plate.

4. The novel electric cylinder direct drive piston cylinder apparatus according to claim 3, characterized by: The first stopper is a convex stopper or a concave stopper.

5. The novel electric cylinder direct drive piston cylinder apparatus according to claim 1, characterized by: The piston cylinder base is locked on the mounting plate by bolts, the bottom of the piston cylinder base is provided with a third stopper, the upper end surface of the mounting plate is provided with a fourth stopper, and the third stopper and the fourth stopper cooperate to position the piston cylinder base and the mounting plate.

6. The novel electric cylinder direct drive piston cylinder apparatus according to claim 5, characterized by: The third stopper is a convex stopper or a concave stopper.

7. The novel electric cylinder direct drive piston cylinder apparatus according to claim 1, characterized by: A sealing ring is arranged between the piston cylinder and the transition cylinder body, and the piston cylinder and the transition cylinder body are connected by a clamp.

8. The novel electric cylinder direct drive piston cylinder apparatus according to claim 1, characterized by: A sealing ring is arranged between the transition cylinder body and the three-way rotary valve, and the transition cylinder body and the three-way rotary valve are connected by a clamp.

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