Dry ice cleaning system

Abstract

The embodiment of the utility model provides a dry ice cleaning system. The dry ice cleaning system comprises: a dry ice buffer container having an accommodating cavity for accommodating dry ice and an outlet part communicated with the accommodating cavity; the stirring assembly comprises a stirring piece, the stirring piece is located in the containing cavity, and the stirring piece can move in the containing cavity; and the dry ice spraying assembly is connected with the outlet part and used for spraying dry ice for cleaning. According to the embodiment of the utility model, the stirring assembly is arranged on the dry ice buffer container in the dry ice cleaning system, the problem of blockage of dry ice conveying when the dry ice capacity is relatively large can be solved through the stirring assembly, and the dry ice cleaning efficiency can be improved while the dry ice capacity of the dry ice cleaning system can be increased.

Description

Technical Field

[0001] The utility model relates to the technical field of semiconductors, in particular to a dry ice cleaning system. Background Art

[0002] Dry ice cleaning systems use clean compressed air to spray dry ice pellets onto the surface of the workpiece to be cleaned. The physical reaction of temperature differences causes different substances to separate at different contraction rates. When the ultra-cold dry ice pellets come into contact with the surface of dirt, they cause a brittle explosion, shrinking and loosening the dirt. The dry ice pellets then instantly vaporize and expand, using their powerful peeling force to quickly and thoroughly remove the dirt from the metal surface. However, due to the large dry ice capacity, dry ice delivery can cause blockages. Therefore, existing dry ice cleaning systems generally have limited dry ice capacity, requiring frequent refills during dry ice cleaning, which impacts cleaning efficiency. Utility Model Content

[0003] Therefore, in order to overcome at least some of the defects and deficiencies in the prior art, an embodiment of the present invention provides a dry ice cleaning system.

[0004] Specifically, on the one hand, the dry ice cleaning system provided by an embodiment of the present invention includes: a dry ice buffer container, having a accommodating chamber for accommodating dry ice and an outlet portion connected to the accommodating chamber; a stirring assembly, including a stirring member, the stirring member is located in the accommodating chamber and can move in the accommodating chamber; and a dry ice spraying assembly, connected to the outlet portion, for spraying dry ice for cleaning.

[0005] In a specific embodiment of the present invention, the stirring assembly also includes a stirring motor, which is electrically connected to the stirring member. The stirring motor is used to drive the stirring member to rotate. The stirring member includes a stirring rod and multiple stirring parts, and the multiple stirring parts are arranged at intervals on the stirring rod.

[0006] In a specific embodiment of the present invention, the dry ice cleaning system further includes: a vibration component, which is disposed on the dry ice buffer container, and the vibration component is used to vibrate the dry ice buffer container.

[0007] In a specific embodiment of the present invention, the dry ice buffer container includes: a buffer accommodating member, wherein the buffer accommodating member is provided with an inlet portion and an outlet portion relative to each other, and the inlet portion, the accommodating cavity and the outlet portion are connected, and the size of the inlet portion is larger than the size of the outlet portion; and a cover body, movably connected to the inlet portion, and the cover body can be closed or opened relative to the inlet portion.

[0008] In a specific embodiment of the present invention, the vibration assembly includes at least one vibrator, and the at least one vibrator is disposed on an outer side wall of the buffer container.

[0009] In a specific embodiment of the present invention, the dry ice cleaning system further includes: a support frame, and the dry ice buffer container and the dry ice blasting assembly are sequentially arranged on the support frame along a height direction of the support frame.

[0010] In a specific embodiment of the present invention, a container connecting portion is provided on the support frame, and the dry ice buffer container is fixedly connected to the support frame via a spring buffer pad.

[0011] In a specific embodiment of the present invention, the dry ice cleaning system further includes: a plurality of temperature sensors, which are arranged on the buffer accommodating member at intervals along a height direction.

[0012] In a specific embodiment of the present invention, the dry ice blasting assembly includes a dry ice drive, a dry ice delivery pipe, a manual delivery port, and an automatic delivery port. The dry ice delivery pipe is connected to the outlet portion, the manual delivery port and the automatic delivery port are respectively connected to the dry ice delivery pipe, and the dry ice drive is connected to the dry ice delivery pipe and is used to drive the dry ice to be ejected through the manual delivery port or the automatic delivery port.

[0013] In a specific embodiment of the present invention, the dry ice holding capacity of the accommodating chamber is 5 to 60 kg.

[0014] As can be seen from the above, the embodiment of the present invention provides a dry ice buffer container, a stirring assembly and a dry ice spray assembly in the dry ice cleaning system. The stirring assembly is arranged on the dry ice buffer container, and the dry ice spray assembly is connected to the outlet of the dry ice buffer container, so that dry ice can be sprayed for cleaning. The stirring assembly can solve the problem of blockage of dry ice delivery when the dry ice capacity is large, and the dry ice capacity of the dry ice cleaning system can be increased while improving the dry ice cleaning efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 A schematic structural diagram of a dry ice cleaning system provided in an embodiment of the present invention;

[0017] Figure 2 for Figure 1 Schematic diagram of a partially exploded structure of a dry ice cleaning system.

[0018] Figure 3 for Figure 1 Schematic diagram of part of the dry ice cleaning system.

[0019] Figure 4 for Figure 1 Schematic diagram of the support frame structure.

[0020] Figure 5 A schematic flow chart of a dry ice cleaning control method provided in an embodiment of the present invention.

[0021] Figure 6 A partial flow chart of the dry ice cleaning control method provided in an embodiment of the present invention.

[0022] Main component numbers:

[0023] 10. Dry ice cleaning system; 100. Dry ice buffer container; 101. Mounting hole; 110. Buffer accommodating part; 111. Accommodating chamber; 112. Inlet; 113. Outlet; 120. Cover; 121. Hinge; 122. Pneumatic push rod; 200. Stirring assembly; 210. Stirring member; 211. Stirring rod; 212. Stirring part; 220. Stirring motor; 300. Vibrator; 400. Dry ice blasting assembly; 410. Dry ice driving part; 420. Dry ice delivery pipe; 430. Manual delivery port; 440. Automatic delivery port; 450. Compressed air inlet; 460. Three-way valve; 500. Support frame; 501. Container connection part; 502. Base; 510. Spring buffer pad; 600. Temperature sensor. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments described in the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] It should be noted that all directional indications (such as up, down, left, right, front, back, top, and bottom) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of the various components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly. In addition, the term "perpendicular" in the embodiments of the utility model and the claims refers to the angle between two elements being 90° or a deviation of -5° to +5°, and the term "parallel" refers to the angle between two elements being 0° or a deviation of -5° to +5°.

[0026] In the embodiments of the present invention, references to "first," "second," and the like are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features indicated. Therefore, features specified as "first" or "second" may explicitly or implicitly include at least one of the features.

[0027] See also Figure 1 and Figure 2 The present invention provides a dry ice cleaning system 10 for spraying dry ice for cleaning. The dry ice cleaning system 10 may include, for example, a dry ice buffer container 100, a stirring assembly 200, and a dry ice blasting assembly 400.

[0028] The dry ice buffer container 100 has a chamber 111 for storing dry ice. It also has an inlet 112 and an outlet 113. These inlet 112 and outlet 113 can be located on opposite sides of chamber 111 and communicate with each other. Chamber 111 is used to store dry ice. Inlet 112 is used to deposit dry ice into chamber 111, while outlet 113 is used to discharge dry ice from chamber 111 for dry cleaning. A dry ice blasting assembly 400 is connected to outlet 113, allowing dry ice to be ejected through outlet 113 for cleaning.

[0029] The dry ice cleaning system 10 may further include a vibration component, which may be disposed on the dry ice buffer container 100 . The vibration component may further accelerate the flow of dry ice by vibrating the dry ice buffer container 100 , thereby preventing dry ice blockage.

[0030] The dry ice blasting assembly 400 sprays dry ice pellets onto the surface of the workpiece to be cleaned, leveraging the physical reaction of temperature differences to cause different substances to detach at different contraction rates. When the ultra-low-temperature dry ice pellets contact the surface of the dirt, they cause a brittle explosion, shrinking and loosening the dirt. Subsequently, the dry ice pellets instantly vaporize and expand, providing a powerful peeling force that quickly and completely removes the dirt from the workpiece (e.g., metal).

[0031] In the embodiment of the present invention, a dry ice buffer container 100, a stirring assembly 200, a vibration assembly, and a dry ice blasting assembly 400 are provided in a dry ice cleaning system 10. The stirring assembly 200 and the vibration assembly are provided on the dry ice buffer container 100, and the dry ice blasting assembly 400 is connected to the outlet 113 of the dry ice buffer container 100, so that dry ice can be blasted for cleaning. The stirring assembly 200 and the vibration assembly can solve the problem of dry ice delivery obstruction when the dry ice capacity is large, thereby increasing the dry ice capacity of the dry ice cleaning system 10 while improving the dry ice cleaning efficiency.

[0032] Furthermore, the stirring assembly 200 may, for example, further include a stirring motor 220, which is electrically connected to the stirring member 210 and is configured to drive the stirring member 210 to rotate. The stirring member 210 can stir the dry ice when rotating. The stirring member 210 may, for example, include a stirring rod 211 and a plurality of stirring portions 212, with the plurality of stirring portions 212 being spaced apart on the stirring rod 211. Furthermore, the stirring portions 212 may, for example, include stirring portions 212 of varying lengths, and the stirring portions 212 may, for example, be spaced apart in height, thereby stirring dry ice at different locations.

[0033] See also Figure 2 , the dry ice buffer container 100 may, for example, include a buffer container 110 and a cover 120. In this embodiment, the dry ice capacity of the accommodating chamber 111 of the buffer container 110 may, for example, be 5kg to 60kg. The inlet portion 112 and the outlet portion 113 may, for example, be arranged on the buffer container 110, and the inlet portion 112, the accommodating chamber 111 and the outlet portion 113 are connected. In this embodiment, the size of the inlet portion 112 may, for example, be larger than the size of the outlet portion 113, and the buffer container 110 may, for example, be a funnel-shaped structure. Through such an arrangement, the flow rate of dry ice can be increased. Furthermore, the inner wall of the buffer container 110 may, for example, be a mirror surface, or a smooth surface. By setting the inner wall to a mirror surface or a smooth surface, the friction between the dry ice and the inner wall can be reduced, thereby further improving the delivery speed of dry ice. The vibration component may, for example, include at least one vibrator 300, and at least one vibrator 300 is arranged on the outer wall of the buffer container 110. See Figure 3 The at least one vibrator 300 may include, for example, two vibrators 300, each located on opposite sides of the buffer container 110. This arrangement can achieve more uniform vibration. Of course, the number of the at least one vibrator 300 can be set according to actual needs, and this embodiment is not limited thereto.

[0034] The cover 120 can be movably connected to the inlet portion 112, for example. When the dry ice cleaning system 10 is in cleaning operation, the cover 120 can be closed on the inlet portion 112 to prevent dry ice from splashing out of the inlet portion 112. When dry ice needs to be added, the cover 120 can be opened, for example, so that the operator can add dry ice through the inlet portion 112. The cover 120 can be connected to the buffer container 110, for example, via a hinge 121, so that the cover 120 can be rotated open relative to the buffer container 110. In addition, the cover 120 can be further provided with a pneumatic push rod 122 on the outside, and the other end of the pneumatic push rod 122 can be connected to an external device, such as a cabinet door, so that the cover 120 can be opened simultaneously when the cabinet door is opened, thereby improving operational convenience. In this embodiment, the stirring motor 220 can be, for example, arranged on the outside of the cover body 120 away from the accommodating cavity 111, and the cover body 120 can be, for example, provided with an installation through hole 101, and the stirring motor 220 and the stirring member 210 are connected through the installation through hole 101. Of course, this embodiment is not limited to this.

[0035] See also Figure 1 and Figure 4 The dry ice cleaning system 10 may, for example, further include a support frame 500, on which the dry ice buffer container 100 and the dry ice blasting assembly 400 are mounted, with the dry ice buffer container 100 and the dry ice blasting assembly 400 arranged in sequence along the height of the support frame 500. A container connection portion 501 may be provided at the top of the support frame 500, for example, and the dry ice buffer container 100 is fixedly connected to the support frame 500 via spring buffer pads 510. The container connection portion 501 may, for example, be located at the top of the support frame 500, with fixing holes provided at the four corners of the top. The dry ice buffer container 100 is mounted to the support frame 500 via screws, for example, and the spring buffer pads 510 may, for example, be mounted on the screws. However, this embodiment is not limited to this embodiment. The provision of the spring buffer pads 510 can cushion the vibration of the dry ice buffer container 100 when the vibrator 300 vibrates. The support frame 500 may, for example, further include a base 502 , and the dry ice blasting assembly 400 may, for example, be disposed on the base 502 .

[0036] See also Figure 2The dry ice cleaning system 10 may, for example, further include a plurality of temperature sensors 600, which are spaced apart along the height direction of the buffer container 110. The temperature sensors 600 may, for example, be used to detect the temperature at different heights within the buffer container 110 to detect the dry ice capacity within the accommodating cavity 111. For example, the plurality of temperature sensors 600 may include three temperature sensors 600, which are disposed at different heights within the buffer container 110. When the temperature sensor 600 detects that the temperature at a corresponding location is higher than a preset value, it may indicate that there is no dry ice at the corresponding location, and the dry ice capacity can be determined. The preset value may be, for example, minus 50 degrees Celsius, which is the temperature of dry ice. When the temperature at the corresponding location is not higher than the preset value, it may indicate that there is dry ice at the corresponding location. When the temperature sensor 600 detects that the dry ice capacity is low, an early warning may be issued, for example, to remind the operator to add dry ice. Accordingly, the dry ice cleaning system 10 may, for example, further include a controller and an early warning device. The controller is electrically connected to the temperature sensor 600 and the early warning device, so that the temperature sensor 600 detects the temperature and sends it to the controller. The controller determines whether the dry ice capacity is sufficient, thereby controlling the operation of the early warning device.

[0037] See also Figure 3 Dry ice blasting assembly 400 may, for example, include a dry ice driver 410, a dry ice delivery pipe 420, a manual delivery port 430, and an automatic delivery port 440. Dry ice delivery pipe 420 is connected to outlet 113, while manual delivery port 430 and automatic delivery port 440 are respectively connected to dry ice delivery pipe 420. Dry ice driver 410 is connected to dry ice delivery pipe 420 and is used to drive dry ice out through manual delivery port 430 or automatic delivery port 440. A compressed air inlet 450 may be further provided at one end of dry ice delivery pipe 420, allowing dry ice to enter dry ice delivery pipe 420 for spraying, for example, via a rotating shaft. A three-way valve 460 is installed between the dry ice delivery pipe 420, the manual delivery port 430, and the automatic delivery port 440. One port of the three-way valve 460 is connected to the dry ice delivery pipe 420, another port is connected to the manual delivery port 430, and a third port is connected to the automatic delivery port 440. A solenoid valve controls the ball valve, allowing for manual and automatic dry ice blasting. By enabling both manual and automatic dry ice blasting modes, the blasting range is expanded, and the blasting time and volume are more flexible and easier to control.

[0038] See also Figure 5 To facilitate understanding of the operation of the dry ice cleaning system provided in this embodiment, this embodiment describes a dry ice cleaning control method of the dry ice cleaning system 10. The dry ice cleaning control method may, for example, include the following steps:

[0039] S10, detecting whether the amount of dry ice in the dry ice buffer container reaches the standard amount through a temperature sensor;

[0040] S20, when the amount of dry ice in the dry ice buffer container reaches a standard amount, simultaneously controlling the dry ice driving component, the stirring component, and the vibration component to operate;

[0041] S30: When the amount of dry ice in the dry ice buffer container does not reach the standard amount, the early warning device is controlled to issue a dry ice addition early warning.

[0042] See also Figure 6 , the dry ice cleaning control method may for example further include the steps of:

[0043] S40, controlling the vibration component to work intermittently according to a preset interval length.

[0044] The dry ice cleaning control method provided in this embodiment may be executed by a controller, for example. When the dry ice cleaning system begins operation, the controller may, for example, control the temperature sensor 600 to detect whether the dry ice content in the dry ice buffer container 100 has reached a specified level. Specifically, for example, the multiple temperature sensors 600 may include three temperature sensors 600, each disposed at different heights within the buffer container 110. When the temperature sensor 600 detects that the temperature at a corresponding location is higher than a preset value, it may indicate that there is no dry ice at the corresponding location, and the dry ice capacity may be determined. The preset value may be, for example, -50 degrees Celsius, i.e., the temperature of dry ice. When the temperature at the corresponding location is not higher than the preset value, it may indicate that there is dry ice at the corresponding location. When the temperature sensor 600 detects that the dry ice capacity has not reached the specified level, the controller may, for example, control the warning device to issue a dry ice refill warning, prompting the operator to add more dry ice. When the dry ice volume in the dry ice buffer container 100 reaches a predetermined level, the controller simultaneously controls the dry ice driver 410, the stirring assembly 200, and the vibration assembly. The simultaneous operation of the stirring assembly 200 and the vibration assembly increases the dry ice delivery rate and prevents dry ice jams. In this embodiment, the vibration assembly may operate at predetermined intervals, such as 5 seconds, but this embodiment is not limited thereto.

[0045] In addition, it can be understood that the aforementioned embodiments are merely illustrative descriptions of the present invention. Under the premise that the technical features do not conflict, the structures do not contradict, and the purpose of the invention of the present invention is not violated, the technical solutions of the various embodiments can be arbitrarily combined and used in combination.

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A dry ice cleaning system, characterized in that: include: A dry ice buffer container, comprising a accommodating cavity for accommodating dry ice and an outlet portion communicating with the accommodating cavity; A stirring assembly, comprising a stirring member, wherein the stirring member is located in the accommodating cavity and is movable in the accommodating cavity; The dry ice blasting assembly is connected to the outlet portion and is used for blasting dry ice for cleaning.

2. The dry ice cleaning system according to claim 1, wherein: The stirring assembly further includes a stirring motor, which is electrically connected to the stirring member and is used to drive the stirring member to rotate. The stirring member includes a stirring rod and a plurality of stirring parts, and the plurality of stirring parts are spaced apart on the stirring rod.

3. The dry ice cleaning system according to claim 2, wherein: Also includes: A vibration component is provided on the dry ice buffer container, and is used to vibrate the dry ice buffer container.

4. The dry ice cleaning system according to claim 3, wherein: The dry ice buffer container comprises: a buffer accommodating member, the buffer accommodating member being provided with an inlet portion and the outlet portion opposite to each other, the inlet portion, the accommodating cavity and the outlet portion being in communication, and the inlet portion being larger than the outlet portion; and The cover body is movably connected to the inlet portion, and the cover body can be closed or opened relative to the inlet portion.

5. The dry ice cleaning system according to claim 4, wherein: The vibration assembly includes at least one vibrator, and the at least one vibrator is arranged on the outer side wall of the buffer accommodating component.

6. The dry ice cleaning system according to claim 5, wherein: Also includes: A support frame, the dry ice buffer container and the dry ice blasting assembly are sequentially arranged on the support frame along a height direction of the support frame.

7. The dry ice cleaning system according to claim 6, wherein: The support frame is provided with a container connecting portion, and the dry ice buffer container is fixedly connected to the support frame via a spring buffer pad.

8. The dry ice cleaning system according to claim 7, wherein: Also includes: A plurality of temperature sensors are arranged on the buffer accommodating part at intervals along a height direction.

9. The dry ice cleaning system according to claim 1, wherein: The dry ice blasting assembly includes a dry ice driving component, a dry ice delivery pipe, a manual delivery port, and an automatic delivery port. The dry ice delivery pipe is connected to the outlet portion, and the manual delivery port and the automatic delivery port are respectively connected to the dry ice delivery pipe. The dry ice driving component is connected to the dry ice delivery pipe and is used to drive dry ice to be ejected through the manual delivery port or the automatic delivery port.

10. The dry ice cleaning system according to any one of claims 1 to 9, wherein: The dry ice holding capacity of the accommodating chamber is 5 to 60 kg.

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