Piston cylinder removal cleaning system

Abstract

The utility model provides a piston cylinder removal cleaning system which comprises a quantitative cylinder, a cleaning bin and a piston, the quantitative cylinder and the cleaning bin are connected in a sealed mode, the piston is arranged in the quantitative cylinder and the cleaning bin in a sliding mode, the cleaning bin is provided with a discharging port and a visible window, and the discharging port is communicated with an inner cavity of the cleaning bin. A cover plate is arranged on the visible window in a sealing mode, and a visible area of the cover plate is made of transparent materials. According to the piston cylinder-removing cleaning system, the cleaning process can be totally closed, no waste liquid overflows, and the piston head is cleaned on line and does not need to be dismantled; the design of the visual window and the cover plate can realize the visualization of the cleaning process and facilitate the observation of the condition of the sealing ring of the piston head, and the maintenance and replacement of the piston head are facilitated.

Description

Technical Field

[0001] This utility model relates to the field of piston cleaning technology, specifically to a piston cylinder detachment and cleaning system. Background Technology

[0002] When changing the type of liquid material in a piston-metering quantitative filling machine, the piston head needs to be cleaned. Currently, the two most common cleaning methods are as follows:

[0003] One option is to remove the piston from the metering cylinder and clean it manually. However, this method has drawbacks such as a long cleaning process, low efficiency, the possibility of secondary contamination from manual disassembly and installation, and wear and tear on the filling machine parts due to frequent disassembly and installation.

[0004] The second method involves detaching the piston head from the metering cylinder to drain the tail material and flush the pipeline and piston head. For example, Chinese Patent CN209363207U discloses a piston cleaning mechanism for a filling machine and a filling machine with automatic cleaning function. It discloses that when the piston head needs to be cleaned, the piston drive unit drives the piston head to detach from the metering cylinder and move it into the cleaning chamber. Then, pressurized cleaning fluid enters the cleaning chamber of the piston detachment seat through the cleaning fluid source inlet, so that the cleaning fluid flushes the piston head. Then, the cleaning fluid with residual material flows out from the outlet into the recovery device, thus eliminating the need to disassemble the piston head for cleaning. This avoids the disadvantages of the first method, but it also has problems such as the cleaning process being invisible, the cleaning effect being difficult to guarantee, and the piston head being inconvenient to inspect and replace.

[0005] Therefore, how to ensure effective piston cleaning and facilitate piston head maintenance and replacement without disassembling the piston head is a technical problem that urgently needs to be solved in this field. Utility Model Content

[0006] The purpose of this invention is to overcome the defects of the prior art and provide a piston cylinder removal and cleaning system that can solve the problems of the cleaning process not being visible and the piston head being inconvenient to inspect and replace in the prior art.

[0007] To achieve the above and other objectives, this utility model is implemented through the following technical solution: This utility model proposes a piston cylinder detachment and cleaning system, including a metering cylinder and a cleaning chamber that are sealed together, and a piston that is slidably disposed within the metering cylinder and the cleaning chamber. The cleaning chamber is provided with a discharge port and a viewing window, and the discharge port is in communication with the inner cavity of the cleaning chamber. A cover plate is sealed on the viewing window, and the visible area of ​​the cover plate is made of transparent material.

[0008] In one embodiment, the cover plate is rotatably connected to the viewing window.

[0009] In one embodiment, the viewing window protrudes from the cleaning chamber, and a locking part is provided above the viewing window; the bottom of the cover plate is hinged to the bottom of the viewing window, and the top of the cover plate is locked to the locking part by screws.

[0010] In one embodiment, a cover plate sealing gasket is provided between the viewing window and the cover plate.

[0011] In one embodiment, a first sealing groove is provided at the contact area between the viewing window and the cover plate, and the cover plate sealing gasket is disposed in the first sealing groove.

[0012] In one embodiment, the piston includes a piston head and a piston rod, the piston head being mounted on the upper end of the piston rod via a quick-release pin.

[0013] In one embodiment, the lower end of the cleaning chamber is provided with a mounting through hole for movably mounting the piston rod.

[0014] In one embodiment, a second sealing groove is provided in the mounting through hole, and a sealing ring is provided in the second sealing groove.

[0015] In one embodiment, the discharge port is located on the side wall of the cleaning chamber and is positioned close to the mounting through hole.

[0016] In one embodiment, the upper end of the metering cylinder is sealed to a rotary valve, which has two passages. One passage is fixedly connected to the metering cylinder, and the other passage is connected to the feed pipe or the discharge pipe by rotating at a preset angle.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The piston cylinder cleaning system provided by this utility model can realize a fully enclosed cleaning process with no waste liquid overflow, and the piston head can be cleaned online without disassembly;

[0019] 2. The design of the viewing window and cover plate in this utility model can realize the visualization of the cleaning process and facilitate the observation of the sealing ring of the piston head;

[0020] 3. The rotating connection design between the cover plate and the viewing window in this utility model allows for easy opening of the cover plate to inspect and replace the piston head.

[0021] 4. In this utility model, the piston head and piston rod are quickly and detachably connected by a quick-release pin, which facilitates the inspection and replacement of the piston head;

[0022] 5. The sealing ring and cover gasket in this utility model can improve the sealing performance of the cleaning chamber. Attached Figure Description

[0023] Figure 1 The diagram shown is a three-dimensional structural schematic of a piston cylinder detachment and cleaning system according to this utility model.

[0024] Figure 2 The diagram shown is a cross-sectional view of a piston cylinder detachment and cleaning system according to this utility model.

[0025] In the diagram: 10. Metering cylinder; 20. Cleaning chamber; 21. Discharge port; 22. Viewing window; 221. First sealing groove; 222. Cover plate sealing gasket; 23. Mounting through hole; 231. Second sealing groove; 232. Sealing ring; 24. Cover plate; 241. Viewing area; 25. Locking part; 31. Piston head; 32. Piston rod; 33. Quick-release pin. Detailed Implementation

[0026] Please see Figures 1-2 The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0027] It should be noted that the structures, proportions, sizes, etc., illustrated in the accompanying drawings of this specification are only used to complement the content disclosed in the specification for those skilled in the art to understand and read, and are not intended to limit the conditions under which this utility model can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportional relationships, or adjustments to the size, without affecting the effects and purposes that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0028] In this invention, the serial numbers assigned to components, such as "first," "second," etc., are merely used to distinguish the described objects and have no sequential or technical meaning. The term "connection" in this invention, unless otherwise specified, includes both direct and indirect connections. The terms "comprising," "including," or any other variations thereof are intended to cover a non-exclusive inclusion, encompassing not only the listed elements but also other elements not expressly listed.

[0029] like Figures 1-2As shown, this utility model provides a piston cylinder cleaning system, including a metering cylinder 10, a cleaning chamber 20, and a piston. The upper end of the cleaning chamber 20 is sealed to the lower end of the metering cylinder 10, and the lower end is provided with a mounting through hole 23 for movably mounting the piston rod 32. The cleaning chamber 20 is provided with a discharge port 21 and a viewing window 22, both of which are located on the side wall of the cleaning chamber 20, with the discharge port 21 located close to the mounting through hole 23. The discharge port 21 is in communication with the inner cavity of the cleaning chamber 20. A cover plate 24 is sealed on the viewing window 22, and the viewing area 241 of the cover plate 24 is made of a transparent material such as glass or plastic. The design of the viewing window 22 allows for real-time monitoring of the cleaning process and periodic inspection of the sealing ring of the piston head 31, serving as a timely replacement reminder. The piston includes a piston head 31 and a piston rod 32. The piston head 31 is mounted on the upper end of the piston rod 32 via a quick-release pin 33. The lower end of the piston rod 32 is connected to a drive device. The drive device drives the piston rod 32 to move the piston head 31 up and down within the metering cylinder 10 and the cleaning chamber 20.

[0030] The upper end of the metering cylinder 10 is sealed with a rotary valve. The rotary valve has two passages: one passage is fixedly connected to the metering cylinder 10, and the other passage is connected to the feed pipe or the discharge pipe by rotating at a preset angle. When metering is being performed, the drive device drives the piston rod 32 to move the piston head 31 up and down within the metering cylinder 10. With the rotary valve connecting the feed pipe to the metering cylinder 10, the piston draws the liquid material downward into the metering cylinder 10. Then, by controlling the rotary valve to connect the discharge pipe to the metering cylinder 10, the drive device drives the piston upward to push the liquid material from the metering cylinder 10 into the filling container, thus achieving metering.

[0031] When it is necessary to change the type of liquid material and clean the pipeline, metering cylinder and piston, the drive device drives the piston rod 32 to lower the piston head 31 to the cleaning chamber 20. When the piston head 31 is completely separated from the metering cylinder 10, the descent stops. The tail material and cleaning liquid coming down through the feed pipeline will flush the piston head 31 and then be discharged from the discharge port 21. The cleaning status can be viewed in real time through the viewing window 22, and the condition of the sealing ring of the piston head 31 can also be checked periodically to ensure timely replacement.

[0032] Furthermore, to facilitate inspection and replacement when the sealing ring of the piston head 31 is found to be in poor condition, the cover plate 24 is designed to open through the viewing window 22. Specifically, the viewing window 22 protrudes from the cleaning chamber 20, and a locking part 25 for locking the cover plate 24 is provided above the viewing window 22. The bottom of the cover plate 24 is hinged to the bottom of the viewing window 22, and the top is locked to the locking part 25 with screws. When the sealing ring of the piston head 31 is damaged, the cover plate 24 can be opened, the quick-release pin 33 can be removed, and the piston head 31 can be taken out for repair or replacement.

[0033] Furthermore, to ensure the overall sealing of the cleaning chamber 20, a cover sealing gasket 222 needs to be installed between the viewing window 22 and the cover plate 24 to achieve a seal between the cleaning chamber 20 and the cover plate 24. Specifically, a first sealing groove 221 can be formed at the contact area between the viewing window 22 and the cover plate 24, and the cover sealing gasket 222 can be placed in the first sealing groove 221.

[0034] Furthermore, in order to ensure the overall sealing of the cleaning chamber 20, a second sealing groove 231 can be provided in the mounting through hole 23, and a sealing ring 232 can be provided in the second sealing groove 231 to achieve the sealing between the cleaning chamber 20 and the piston rod 32.

[0035] In summary, the piston cylinder cleaning system provided by this utility model can achieve a fully enclosed cleaning process with no waste liquid overflow. The piston head 31 is cleaned online without disassembly. The design of the viewing window 22 and the cover plate 24 can visualize the cleaning process and facilitate observation of the piston head's sealing ring condition. At the same time, the piston head 31 and piston rod 32 are quickly and detachably connected by the quick-release pin 33. Combined with the rotating connection design of the cover plate 24 and the viewing window 22, the maintenance and replacement of the piston head can be facilitated.

[0036] Therefore, this utility model effectively overcomes the various shortcomings of the prior art and has high industrial application value. The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit this utility model. Any person skilled in the art can modify or change the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or changes made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A piston cylinder detachment and cleaning system, comprising a metering cylinder and a cleaning chamber sealed together, and a piston slidably disposed within the metering cylinder and the cleaning chamber, characterized in that, The cleaning chamber is provided with a discharge port and a viewing window. The discharge port is connected to the inner cavity of the cleaning chamber. The viewing window is sealed with a cover plate, and the visible area of ​​the cover plate is made of transparent material.

2. The piston cylinder detachment and cleaning system according to claim 1, characterized in that, The cover plate is rotatably connected to the viewing window.

3. The piston cylinder detachment and cleaning system according to claim 2, characterized in that, The viewing window protrudes from the cleaning chamber, and a locking part is provided above the viewing window; the bottom of the cover plate is hinged to the bottom of the viewing window, and the top of the cover plate is locked to the locking part by screws.

4. The piston cylinder detachment and cleaning system according to claim 2 or 3, characterized in that, A cover plate sealing gasket is provided between the viewing window and the cover plate.

5. The piston cylinder detachment and cleaning system according to claim 4, characterized in that, A first sealing groove is provided at the contact area between the viewing window and the cover plate, and the cover plate sealing gasket is disposed in the first sealing groove.

6. The piston cylinder detachment and cleaning system according to claim 1, characterized in that, The piston includes a piston head and a piston rod, and the piston head is mounted on the upper end of the piston rod via a quick-release pin.

7. The piston cylinder detachment and cleaning system according to claim 1 or 6, characterized in that, The lower end of the cleaning chamber has an installation through hole for movably installing the piston rod.

8. The piston cylinder detachment and cleaning system according to claim 7, characterized in that, A second sealing groove is provided inside the mounting through hole, and a sealing ring is provided inside the second sealing groove.

9. The piston cylinder detachment and cleaning system according to claim 7, characterized in that, The discharge port is located on the side wall of the cleaning chamber and is close to the mounting through hole.

10. The piston cylinder detachment and cleaning system according to claim 1, characterized in that, The upper end of the metering cylinder is sealed and connected to a rotary valve. The rotary valve has two passages. One passage is fixedly connected to the metering cylinder, and the other passage is connected to the feed pipe or the discharge pipe by rotating at a preset angle.

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