Continuous dry cleaning apparatus

Abstract

The present invention provides a continuous dry cleaning apparatus. The continuous dry cleaning apparatus is disposed above the transfer path of an object to be cleaned, so as to clean the upper surface of the object to be cleaned. The continuous dry cleaning apparatus comprises: a nozzle part for spraying, at the upper surface of the object to be cleaned being transferred along the transfer path, cleaning air supplied from the outside; a foreign material suction part which is disposed on one side of the nozzle part, and which suctions foreign material scattered from the upper surface of the object to be cleaned when the cleaning air is sprayed; and an auxiliary space forming part, which is disposed on the other side of the nozzle part, has an open lower side, and has an auxiliary space formed therein, wherein the foreign material suction part has a suction force formation space into which the foreign material is suctioned, the volume of the suction force formation space being smaller than the volume of the auxiliary space.

Description

Continuous dry cleaning device

[0001] The present invention relates to a continuous dry cleaning device, and more specifically, to a continuous dry cleaning device capable of achieving cleaning by preventing foreign substances present on the surface of a cleaning target, such as a copper foil film, from scattering to the outside.

[0002] With the recent full-scale development of electric vehicles, energy storage batteries, robots, and satellites, research on high-performance secondary batteries capable of repeated charging and discharging is actively underway.

[0003] The secondary battery manufacturing process can proceed in the order of electrode process, assembly process, activation process, and pack process.

[0004] The electrode process involves mixing an active material (anode: lithium metal oxide, cathode: graphite, etc.), a conductive material, a binder, and a solvent to make a slurry, coating the slurry thinly and uniformly onto a current collector (anode: aluminum foil, cathode: copper foil), drying to remove the solvent, rolling the dried electrode to increase density, and cutting it into the required size.

[0005] The assembly process involves alternately stacking (pouch type / prismatic type) or winding (cylindrical type) the positive electrode, separator, and negative electrode to form the basic structure of the battery, placing and sealing them in a can (cylindrical type) or pouch (pouch type / prismatic type) to prevent the ingress of external air and moisture, injecting the electrolyte to ensure sufficient permeation into the electrodes, removing gases generated during the electrolyte injection process, and sealing to completely isolate it from the outside.

[0006] The activation process forms a stable film (SEI) on the electrode surface through initial charging and discharging, improves battery performance, stabilizes the battery for a certain period to minimize performance fluctuations, measures voltage, capacity, and resistance to filter out defective products, and classifies them according to performance.

[0007] The pack process involves connecting multiple cells to create modules, combining the modules to form a pack, installing a Battery Management System (BMS) to monitor voltage, temperature, and other parameters for safe management, finally inspecting the performance and safety of the completed pack, and shipping it.

[0008] In the secondary battery manufacturing process, air cleaning is primarily utilized to remove dust or foreign substances. In particular, air cleaning is critically used in the electrode and assembly processes.

[0009] In the nationwide process, after coating and drying the electrodes, air is sprayed to remove dust or foreign substances remaining on the surface.

[0010] In addition, air cleaning is performed to remove fine dust or metal fragments generated during the rolling and cutting processes.

[0011] In the case of air cleaning during the assembly process, dust and foreign substances adhering to surfaces are removed before assembling electrodes, separators, etc., to minimize defects. Additionally, air cleaning is used to keep the interiors of cans and pouches clean, preventing dust or foreign substances from entering.

[0012] In addition, air cleaning is also performed during the display manufacturing process.

[0013] Since the display manufacturing process is sensitive to even minute dust or foreign substances that can lead to defects, thorough cleaning is essential at every stage of the process. In this regard, air cleaning is utilized in various ways.

[0014] For example, a method (air knife) that sprays high-pressure clean air is used to remove dust or foreign substances from the surface of a glass substrate. The air shower method lowers the dust concentration inside the cleanroom and minimizes dust contamination from workers and equipment.

[0015] As described above, in the manufacturing processes of secondary batteries and displays, a process of cleaning objects by spraying air is used.

[0016] Typically, the object to be cleaned moves along a conveying path. Then, an air-spraying cleaning device sprays air from above the moving object onto its surface to remove foreign substances.

[0017] There is a need to develop a technology that effectively prevents surface damage to the object to be cleaned during cleaning by spraying cleaning air onto the cleaning area of ​​the object to be cleaned as it moves the film while cleaning foreign substances formed on the surface of the object to be cleaned, thereby removing the foreign substances while preventing the removed foreign substances from scattering to the outside.

[0018] For example, cleaning air is sprayed onto the surface of a moving object to be cleaned. Consequently, foreign substances removed from the surface of the object to be cleaned by the spraying of cleaning air are scattered to the outside. To prevent such scattering of foreign substances, the cleaning device may be equipped with a suction structure that sucks in the foreign substances and discharges them to the outside.

[0019] However, when cleaning air is sprayed onto the surface of a moving object to be cleaned and foreign substances are sucked in from both sides, the object to be cleaned passes sequentially through the lower portions of the first and second suction sections as it moves. In the second suction section, where the object to be cleaned is not located, pressure loss occurs compared to the first suction section, where the object to be cleaned is located, and consequently, foreign substances may be scattered to the outside. Additionally, as the object to be cleaned continues to move and passes through the lower portion of the second suction section, pressure loss may occur in the first suction section.

[0020] Accordingly, when the object to be cleaned is not located in the second suction part, the suction flow of the first suction part may be partially blocked by the object to be cleaned. As a result, the second suction part attempts to suck in relatively more air, but the suction efficiency decreases and pressure loss occurs due to the absence of the object to be cleaned.

[0021] Furthermore, as the object to be cleaned moves from the first suction section to the second suction section, a sudden change in the suction flow occurs. This disturbs the airflow around the suction port and generates vortices, causing pressure loss. In particular, if the suction area suddenly increases as the object to be cleaned reaches the second suction section, the pressure loss may be even greater.

[0022] In other words, if pressure loss occurs in the second suction part, the suction force weakens, so foreign substances may not be properly sucked in and could be scattered to the outside.

[0023] In addition, as the object to be cleaned continues to move, alternating pressure loss occurs in the first and second suction sections, which not only leads to reduced cleaning efficiency and energy waste but also has a problem that can have an adverse effect on the lifespan of the equipment.

[0024] Accordingly, in recent years, when performing a cleaning process to remove foreign substances from the surface of a moving object using air as described above, there is a need to develop a technology that can prevent such pressure loss, thereby preventing the scattering of foreign substances and effectively improving cleaning efficiency.

[0025] The present invention has been devised to solve the aforementioned problems, and the objectives of the present invention are as follows.

[0026] The objective of the present invention is to provide a continuous dry cleaning device for manufacturing secondary batteries that can achieve cleaning by preventing foreign substances present on the surface of a cleaning target, such as a copper foil film, from scattering to the outside.

[0027] That is, the present invention provides a continuous dry cleaning device capable of improving cleaning efficiency by spraying cleaning air onto the upper surface of a cleaning object moving along a path while simultaneously sucking in foreign substances from both sides, and by dynamically controlling the suction pressure from both sides sucking in foreign substances according to the movement of the cleaning object to minimize pressure loss associated with the suction of foreign substances.

[0028] The objectives of the present invention are not limited to those mentioned above, and other objectives and advantages of the present invention not mentioned may be understood from the following description and will be more clearly understood by the embodiments of the present invention. Furthermore, it will be readily apparent that the objectives and advantages of the present invention can be realized by the means and combinations thereof set forth in the claims.

[0029] To achieve the above objectives, the present invention provides a continuous dry cleaning device.

[0030] The above continuous dry cleaning device is positioned above the conveying path of the object to be cleaned and cleans the upper surface of the object to be cleaned.

[0031] The above continuous dry cleaning device comprises a nozzle section that sprays cleaning air supplied from the outside onto the upper surface of the object to be cleaned being transported along the transport path, a foreign matter suction section disposed on one side of the nozzle section and sucking in foreign matter scattered from the upper surface of the object to be cleaned as the cleaning air is sprayed, and an auxiliary space forming section disposed on the other side of the nozzle section, having an open bottom and an auxiliary space formed inside, wherein the foreign matter suction section forms a suction force forming space in which the foreign matter is sucked in, and the volume of the suction force forming space is formed to be smaller than the volume of the auxiliary space.

[0032] Here, a suction hole exposed to the transfer path is formed in the lower part of the foreign substance suction part, and

[0033] An opening is formed in the lower part of the above auxiliary space forming part, the lower part of which is open,

[0034] The area of ​​the above opening is,

[0035] It is preferable that the area of ​​the suction hole be formed narrower than the above.

[0036] And the above continuous dry cleaning device is,

[0037] It has a main body in the shape of a rectangular frame with the top and bottom open,

[0038] A suction duct is connected to the top of the above main body, and

[0039] The nozzle part is installed in the internal space of the main body, and the two sides of the nozzle part and the two side walls of the internal space of the main body are spaced apart.

[0040] The upper part of the nozzle portion is positioned at a smaller location than the upper part of the main body, and

[0041] A suction force forming space is formed between one side of the nozzle part and one side wall of the internal space of the main body, and

[0042] The auxiliary space is formed between the other side of the nozzle part and the other side wall of the internal space of the main body, and

[0043] It is preferable that the lower end of the nozzle portion be positioned along the same line as the lower end of the main body.

[0044] In addition, the suction force forming space is open along the upper and lower parts of the main body, and

[0045] It is preferable that the above auxiliary space is sealed to the upper side of the main body and open along the lower side.

[0046] In addition, between the upper part of the nozzle section and the other side wall of the internal space of the main body,

[0047] It is desirable to place a sealing plate to seal the upper part of the auxiliary space.

[0048] In addition, the lower surface of the above sealing plate is,

[0049] It is preferable that the other side of the nozzle portion be formed as an inclined surface or a curved surface that slopes downward along the other side wall of the internal space of the main body.

[0050]

[0051] In addition, the above nozzle part is,

[0052] It is arranged to be horizontally movable along the transfer path within the internal space of the main body, and

[0053] It is preferable that the area of ​​the suction hole and the area of ​​the opening be variable according to the movement of the nozzle part.

[0054] In particular, the volume of the above auxiliary space varies according to the movement of the nozzle part.

[0055] The above sealing plate is formed as a multi-stage plate member capable of protruding or being inserted along the horizontal direction.

[0056] The width of the sealing plate can be varied as the above-mentioned multi-stage plate member protrudes or is inserted.

[0057] Here, cylinders having a shaft protruding along the horizontal direction are installed on one side wall of the internal space of the main body.

[0058] The end of the shaft of each of the above cylinders is connected to one side of the commercial nozzle section. The cylinders extend the shafts according to the control of the controller.

[0059] One end of the sealing plate is in close contact with the other side of the upper portion of the nozzle portion, and the other end of the sealing plate is fixed to the other side of the internal space of the main body. In addition, springs are installed between the multi-stage plate members.

[0060] A pressure sensor is installed on one side of the lower part of the main body to measure the pressure of air flowing to the outside through the lower part of the suction force forming space and to transmit the measured pressure to the controller.

[0061] A reference pressure is set in the above control unit, and the movement position of the nozzle unit is varied by controlling the protrusion of the axes of the cylinders so that the measured pressure reaches the reference pressure.

[0062] In addition, suction ports are formed in the sealing plate that are exposed to the upper space of the main body. Valves are installed in the suction ports to open and close the suction ports according to the control of the controller.

[0063] Through the means for solving the above problem, the present invention has the effect of achieving cleaning by preventing foreign substances present on the surface of a cleaning target, such as a copper foil film, from scattering to the outside.

[0064] That is, the present invention has the effect of improving cleaning efficiency by spraying cleaning air onto the upper surface of a cleaning object moving along a path and simultaneously sucking in foreign substances from both sides, while controlling the suction pressure from both sides sucking in foreign substances in a variable manner according to the movement of the cleaning object to minimize pressure loss associated with the suction of foreign substances.

[0065] In addition to the effects described above, the specific effects of the present invention are described together with the specific details for implementing the invention below.

[0066] FIG. 1 is a perspective view showing a continuous dry cleaning device according to the present invention.

[0067] FIG. 2 is a perspective view showing the interior of a continuous dry cleaning device according to the present invention.

[0068] FIG. 3 is a bottom perspective view showing the lower part of the main body according to the present invention.

[0069] FIG. 4 is a perspective view showing a nozzle part according to the present invention.

[0070] FIG. 5 is a bottom perspective view showing a nozzle part according to the present invention.

[0071] FIG. 6 is an exploded perspective view showing a nozzle part according to the present invention.

[0072] FIG. 7 is a perspective view showing the coupling relationship between the nozzle part and the sealing plate according to the present invention.

[0073] FIG. 8 is a cutaway perspective view showing a dry cleaning device according to the present invention.

[0074] FIG. 9 is a cross-sectional view showing a dry cleaning device according to the present invention.

[0075] FIG. 10 is a drawing showing the cleaning process and the flow of foreign substances sucked from the surface of a moving object to be cleaned according to each cleaning process when the suction force forming space and the auxiliary space form the same width according to the present invention.

[0076] FIG. 11 is a drawing showing an example of a configuration in which a nozzle part according to the present invention is movable.

[0077] Figure 12 is a drawing showing an example of a state in which the nozzle part is moved.

[0078] Figure 13 is a drawing showing an example in which additional suction ports are formed in a sealed plate.

[0079] An embodiment of the present invention will be described with reference to the drawings.

[0080] The present invention may be implemented in various different forms, and the embodiments described herein are merely examples that clearly illustrate the features of the invention and do not limit the scope of the invention.

[0081] To clearly explain the present invention, parts unrelated to the explanation have been omitted, and identical or similar components throughout the specification are given the same reference numerals.

[0082] In the following, the statement that any configuration is provided or arranged on the "upper (or lower)" or "upper (or lower)" means that any configuration is provided or arranged in contact with the upper (or lower) surface of the above description.

[0083] Furthermore, it is not limited to not including any other configuration between the above description and any configuration provided or placed on (or under) the description.

[0084]

[0085] The following describes the configuration of the continuous dry cleaning device of the present invention with reference to the attached drawings.

[0086] FIG. 1 is a perspective view showing a continuous dry cleaning device according to the present invention. FIG. 2 is a perspective view showing the interior of a continuous dry cleaning device according to the present invention. FIG. 3 is a bottom perspective view showing the lower part of a main body according to the present invention.

[0087] Referring to FIGS. 1, 2, and 3, the dry cleaning device according to the present invention has a rectangular main body (100). An internal space is formed inside the main body (100), and the upper and lower ends are open.

[0088] The lower end of the suction duct (200) is connected to the upper end of the main body (100). The suction duct (200) generates suction force in the internal space of the main body (100) through the operation of an external suction device.

[0089] The suction duct (200) has a suction pipe (210) and a suction guide pipe (220) that is connected to the lower end of the suction pipe (210) and is formed in a shape that gradually widens along the lower end so as to be coupled to the upper edge of the main body (100).

[0090] In addition, a pair of air fitting members (110) are installed at the front and rear ends of the main body (100) to supply cleaning air provided from the outside to the nozzle part (300) described later.

[0091]

[0092] The configuration of the nozzle part (300) according to the present invention is described.

[0093] FIG. 4 is a perspective view showing a nozzle part according to the present invention. FIG. 5 is a bottom perspective view showing a nozzle part according to the present invention. FIG. 6 is an exploded perspective view showing a nozzle part according to the present invention. FIG. 7 is a perspective view showing the coupling relationship between the nozzle part and the sealing plate according to the present invention.

[0094] As shown in FIGS. 2 and 3, the nozzle part (300) according to the present invention is disposed in the internal space of the main body (100).

[0095] Referring to FIGS. 4 and 5, the nozzle portion (300) includes a nozzle body (310) having a certain length. Both sides of the nozzle body (310) form a slope in which the width gradually narrows along the downward side.

[0096]

[0097] A hole (310a) is formed in the nozzle body (310) that penetrates along the top and bottom. The hole forms a certain length along the longitudinal direction of the nozzle body (310).

[0098] Referring to FIG. 6, the nozzle body (310) has a pair of unit nozzle bodies (311) that are joined to face each other. A cut groove is formed on the inner surface of each of the pair of unit nozzle bodies (311).

[0099] When the above pair of unit nozzle bodies (311) are combined, their respective cut grooves are arranged to face each other, and these cut grooves form the hole (310a) that exposes the upper and lower parts of the nozzle body (310).

[0100] And a spray member (320) is installed inside the nozzle body (310).

[0101] The above injection member (320) has a lower body in the shape of a square bar and an upper body formed in a shape that gradually narrows in width at the top of the lower body and has a pointed top.

[0102] On both sides of the lower body, injection holes (321) are formed at uniform intervals along the longitudinal direction of the lower body and along the vertical direction. The injection holes (321) are formed in a groove shape with a certain depth into the inner side of the lower body.

[0103] The above injection member (320) is installed inside the nozzle body (310) so as to be positioned along the central axis of the pair of unit nozzle bodies (311).

[0104] Both sides of the lower body can be in close contact with the lower inner surface of a pair of unit nozzle bodies (311).

[0105] And the upper body is placed in the hole (310a) of the nozzle body (310) and exposed on the upper part of the nozzle body (310).

[0106] In addition, as shown in FIG. 8, a sealing plate (400) formed with a length corresponding to the length of the nozzle body (310) may be disposed on one side of the upper part of the nozzle body (310). The configuration of the sealing plate (400) will be described later.

[0107]

[0108] FIG. 8 is a cutaway perspective view showing a dry cleaning device according to the present invention. FIG. 9 is a cross-sectional view showing a dry cleaning device according to the present invention. FIG. 10 is a drawing showing the cleaning process and the flow of foreign substances sucked from the surface of a moving object to be cleaned according to each cleaning process when the suction force forming space and the auxiliary space form the same width according to the present invention.

[0109] Referring to FIGS. 8, 9, and 10, an internal space is formed in the main body (100). The lower end of the suction guide tube (220) of the suction duct (200) is connected to the upper end of the main body (100). The suction guide tube (220) is connected to the internal space of the main body (100).

[0110] A nozzle part (300) is disposed in the internal space of the main body (100).

[0111] The nozzle part (300) is positioned at a location offset along a second direction that is opposite to the first direction from the central axis of the main body (100).

[0112] That is, the central axis of the nozzle part (300) is positioned at a location offset along the second direction from the central axis of the main body (100). At this position, the nozzle part (300) is coupled and fixed to the main body (100) through a separate coupling member (not shown).

[0113] Accordingly, a suction force forming space (a) is formed in the internal space of the main body on the first direction side at the boundary of the nozzle part (300). Additionally, an auxiliary space (b) is formed in the internal space of the main body on the second direction side at the boundary of the nozzle part (300).

[0114] Here, the width (W1) of the suction force forming space (a) is formed wider than the width (W2) of the auxiliary space (b). The lower part of the suction force forming space (a) forms a suction hole. The lower part of the auxiliary space (b) forms an opening.

[0115] The upper part of the nozzle body (310) of the nozzle part (300) is exposed to the suction duct (200).

[0116] Accordingly, the path where the suction force is formed is connected to the suction duct (200) and the suction force forming space (a) to form a space that forms the suction force (suction force forming space).

[0117] Meanwhile, a plate-shaped sealing plate (400) is disposed on one side of the upper portion of the nozzle part (300).

[0118] The other side of the sealing plate (400) is in close contact with one side of the upper part of the nozzle body (310). The other side of the sealing plate (400) can be fixed to the main body (100) through a separate fixing member (not shown).

[0119] Therefore, the upper part of the auxiliary space (b) is sealed by the sealing plate (400), so that the suction force from the suction duct (200) may not be applied.

[0120] Here, the sealing plate (400) may be provided with a sealing member (not shown) capable of preventing airtightness when in close contact with the upper edge of the nozzle body (310). The sealing member is formed of an elastic material.

[0121] The nozzle part (300) receives cleaning air from the outside and supplies it to the spray holes (321) formed in the spray body (320). The cleaning air is sprayed downward through the spray holes (321) and the bottom of the nozzle part (300).

[0122] To summarize the above configuration, the continuous dry cleaning device according to the present invention is positioned above the conveying path through which the object to be cleaned (10) is conveyed.

[0123] The above continuous dry cleaning device has a nozzle part (300) that sprays cleaning air downward. The nozzle part (300) sprays cleaning air onto the upper surface of the object to be cleaned (10) being transported.

[0124] A suction part that forms a set suction force is disposed on one side of the nozzle part (300). The suction part forms a suction force forming space (a) that is open to the bottom.

[0125] The above suction part is a portion that forms a suction force forming space (a) between one side of the internal space of the main body (100) and the other side of the nozzle part (300).

[0126] An auxiliary space forming part is formed on the other side of the nozzle part (300) to form an auxiliary space (b). The auxiliary space (b) is open downward. A sealing plate (400) is placed at the top of the auxiliary space (b). By the sealing plate (400), the auxiliary space (b) is opened only downward and the top is sealed.

[0127] The above auxiliary space forming part is a part that forms the above auxiliary space (b) by means of the other side of the nozzle part (300), the other side of the internal space of the main body (100), and the sealing plate (400).

[0128] Here, the size of the suction force forming space (a) is formed to be larger than the size of the auxiliary space (b).

[0129] In addition, the bottom surface of the suction part and the bottom surface of the auxiliary space forming part are horizontal along the same line.

[0130] Foreign substances, such as dust, are formed on the upper surface of the object to be cleaned (10). This object to be cleaned (10) is transported along a transport path. The transported object to be cleaned (10) enters the lower part of the suction force forming space (a). The foreign substances formed on the upper surface of the object to be cleaned (10) are sucked in through the suction force formed in the suction force forming space (a).

[0131] At the same time, the nozzle part (300) sprays cleaning air downward at a constant pressure.

[0132] And the foreign matter formed on the upper surface of the object to be cleaned (10) being transported is moved by the flow of the cleaning air sprayed by the spray pressure of the sprayed cleaning air, and flows into the suction force forming space (a) and is discharged to the outside.

[0133] And the object to be cleaned (10) being transported is moved to the lower part of the auxiliary space (b) and exposed to the auxiliary space (b).

[0134] At this time, during the process of removing foreign substances formed on the surface of the moving object to be cleaned (10), the size of the suction force forming space (a) is formed to be larger than the size of the auxiliary space (b).

[0135] The function of the above auxiliary space (b) is explained.

[0136] In a continuous dry cleaning device, the auxiliary space (b) performs the following functions and plays an important role in minimizing pressure loss and maintaining suction efficiency.

[0137] The auxiliary space (b) according to the present invention can maintain pressure balance.

[0138] As the object to be cleaned (10) moves along the transport path and alternately passes through the suction force forming space (a) and the auxiliary space (b), a pressure change occurs in each space. The auxiliary space (b) serves to mitigate the sudden pressure change that occurs when the object to be cleaned (10) moves from the suction force forming space (a) to the auxiliary space (b). (Mitigation of pressure change due to movement of the object to be cleaned)

[0139] If there is no auxiliary space (b), when the object to be cleaned moves out of the suction force forming space (a), the pressure in the suction force forming space decreases rapidly, reducing suction efficiency and increasing the possibility of foreign matter scattering. The auxiliary space (b) can reduce pressure changes in the suction force forming space while the object to be cleaned (10) stays there for a while, thereby maintaining stable suction force. (Maintaining stable suction force in the suction force forming space)

[0140] The auxiliary space (b) according to the present invention can maintain suction efficiency.

[0141] When the object to be cleaned (10) is exposed to the auxiliary space (b), a pressure difference occurs between the suction force forming space (a) and the auxiliary space (b). Due to this pressure difference, foreign substances remaining on the surface of the object to be cleaned (10) move toward the suction force forming space (b) and are sucked in. (Improved foreign substance suction efficiency)

[0142] The auxiliary space (b) serves to stabilize the flow of cleaning air. By allowing some of the cleaning air to flow into the auxiliary space (b) instead of being concentrated only in the suction force forming space (a), pressure changes within the suction force forming space can be reduced and suction efficiency can be increased. (Stabilization of cleaning air flow)

[0143] In addition, the sealing plate (400) located at the top of the auxiliary space (b) according to the present invention prevents foreign matter separated from the object to be cleaned (10) from falling back onto the surface of the object to be cleaned. Also, foreign matter trapped within the auxiliary space (b) may move to the suction force forming space (a) and be sucked in.

[0144] In addition, the auxiliary space (b) according to the present invention may reduce noise generated during the suction process. Noise generation may also be reduced by dispersing the suction flow and mitigating pressure changes.

[0145] Accordingly, the auxiliary space (b) is not merely an empty space, but plays an important role in optimizing the performance of the dry cleaning device by performing various functions such as maintaining pressure balance, improving suction efficiency, and preventing foreign matter from falling. By designing it to be smaller than the suction force generating space (a), it is possible to create a pressure difference and achieve the effect of increasing suction efficiency.

[0146] In addition, in the present invention, the shape of the lower surface of the sealing plate (400) that seals the upper part of the auxiliary space (b) may be varied to further enhance the above effect.

[0147] The lower surface of the sealing plate (400) can be formed with a slope.

[0148] The lower surface of the sealing plate (400) can be designed to be inclined to make the pressure change that occurs when the object to be cleaned (10) passes through the auxiliary space (b) smoother. This reduces the pressure difference between the suction force forming space (a) and the auxiliary space (b), thereby preventing sudden changes in suction force and increasing the efficiency of suctioning foreign substances. This can be effective in reducing pressure loss, increasing the efficiency of suctioning foreign substances, and improving the stability of movement of the object to be cleaned.

[0149] It is preferable to make the sloped surface of the lower side of the sealing plate (400) smooth so as to prevent foreign matter from accumulating or getting stuck.

[0150] In addition, although not shown in the drawing, the lower surface of the sealing plate (400) according to the present invention may be formed as a curved surface.

[0151] The lower surface of the sealing plate (400) can be designed in a curved shape to facilitate airflow and minimize the generation of vortices. This can reduce pressure loss and increase suction efficiency. This can achieve reduced pressure loss, increased foreign matter suction efficiency, and stabilization of cleaning airflow. It is recommended to make the curved surface smooth to prevent foreign matter from accumulating or getting stuck.

[0152] In addition, the lower surface of the sealing plate (400) according to the present invention may be formed in a multi-stage shape.

[0153] Additionally, although not shown in the drawing, the lower surface of the sealing plate (400) may be designed to be divided into several stages to respond more flexibly to pressure changes caused by the movement of the object to be cleaned. By adjusting the height and width of each stage, pressure balance can be maintained and suction efficiency can be increased.

[0154] Meanwhile, a vibration generating module (not shown) may be installed on the lower surface of the above-mentioned sealing plate (400). The vibration generating module may be embedded inside the sealing plate (400). In addition, multiple modules may be installed.

[0155] The above vibration generating module generates a constant vibration under the control of the controller. The controller can drive the vibration generating module to produce vibrations proportional to a ratio set to the pressure of the suction force forming space measured through the pressure sensor.

[0156] By adding a vibration generating module to the lower surface of the sealing plate (400), it is possible to improve the efficiency of removing foreign substances and reduce pressure loss.

[0157] Vibration serves to shake and detach foreign substances attached to the surface of the object being cleaned. This can be effective for removing fine or tightly attached foreign substances that are difficult to remove with cleaning air alone. (Promotes foreign substance separation)

[0158] Vibration can increase suction efficiency by moving foreign substances that are trapped within the auxiliary space or are unable to move smoothly into the suction force generating space. (Promotes movement of foreign substances)

[0159] Vibration promotes airflow near the bottom of the sealing plate, preventing stagnation or the formation of vortices, which can reduce pressure loss and increase suction efficiency. (Promoting airflow)

[0160] Vibration prevents foreign matter from accumulating on the underside of the sealing plate, thereby preventing pressure loss caused by blockage of the suction path. (Prevention of foreign matter accumulation)

[0161] In addition, cleaning time can be shortened by improving the efficiency of foreign substance removal, and vibration can provide a uniform cleaning effect over the entire object to be cleaned.

[0162] The following describes an example of varying the volume of an auxiliary space according to the present invention.

[0163] FIG. 11 is a drawing showing an example of a configuration in which the nozzle part is movable according to the present invention. FIG. 12 is a drawing showing an example of a state in which the nozzle part is moved.

[0164] Referring to FIG. 11, the nozzle part (300) is positioned to be horizontally movable along the transfer path within the internal space of the main body (10). The area of ​​the hole in the suction force forming space (a) and the area of ​​the opening in the auxiliary space (b) may be variable depending on the movement of the nozzle part (30).

[0165] The volume of the above auxiliary space (b) varies according to the movement of the nozzle part (300).

[0166] The above sealing plate (400) has a fixed plate (410) and a protruding plate (420). The fixed plate (410) is fixed to the other side of the internal space of the main body (10), and the protruding plate (420) is in close contact with the upper corner of the nozzle body (310).

[0167] An incline is formed on the upper corner of the nozzle body (310), and an inclined surface is formed on the lower surface of the protruding plate (420) so as to make inclined contact with the incline.

[0168] Additionally, a guide hole (421) is formed on the side of the protruding plate (420), and a guide pin (411) is installed on one side of the fixing plate (410). The guide pin (411) can be inserted into the guide hole (421) to guide the movement of the protruding plate (420).

[0169] The perimeter of the protruding plate (420) and the fixed plate (410) is connected by a corrugated member (430).

[0170] In addition, a spring (not shown) is interposed between the protruding plate (420) and the fixed plate (410).

[0171] Accordingly, as the protruding plate (420) protrudes, the width of the sealing plate (400) can be varied.

[0172] Here, cylinders (600) having an axis (610) protruding along the horizontal direction are installed on one side wall of the internal space of the main body (100).

[0173] The end of the shaft (610) of each of the above cylinders (600) is connected to one side of the commercial nozzle part (300). The above cylinders (600) extend the shaft (610) according to the control of the controller (500).

[0174] A pressure sensor (510) is installed on one side of the lower part of the main body (100) to measure the pressure of air flowing to the outside through the lower part of the suction force forming space (a) and to transmit the measured pressure to the controller (500).

[0175] A reference pressure is set in the control unit (500), and the movement position of the nozzle unit (300) is varied by controlling the protrusion of the shaft (610) of the cylinders (600) so that the measured pressure reaches the reference pressure.

[0176]

[0177] Figure 13 is a drawing showing an example in which additional suction ports are formed in a sealed plate.

[0178] Referring to FIG. 13, suction ports (440) exposed to the upper space of the main body (100) may be formed in the sealing plate (400), and valves (450) that control the degree of opening and closing of the suction ports (440) according to the control of the controller (500) may be installed in the suction ports (440).

[0179] In such cases, the controller can open and close the valves to open and close the suction ports so that the pressure measured by the pressure sensor reaches the reference pressure, thereby allowing suction force to be formed in the auxiliary space into the suction duct. Accordingly, in the present invention, when cleaning to remove foreign substances formed on the surface of a moving object to be cleaned by variably controlling the suction force in the auxiliary space, the pressure loss occurring in the suction force formation space can be controlled in real time to achieve effective dry cleaning of the moving object to be cleaned.

[0180] According to the overall configuration and operation described above, the present invention sprays cleaning air onto the upper surface of a cleaning target moving along a path, while simultaneously sucking in foreign substances from both sides thereof, and by dynamically controlling the suction pressure from both sides sucking in foreign substances according to the movement of the cleaning target, the pressure loss associated with sucking in foreign substances can be minimized, thereby improving cleaning efficiency.

[0181] The present invention is not limited to the specific preferred embodiments described above, and anyone with ordinary knowledge in the art to which the invention pertains can make various modifications without departing from the essence of the invention as claimed in the claims, and such modifications will be within the scope of the claims.

[0182] 100 : Main body

[0183] 200 : Suction duct

[0184] 210 : Suction tube

[0185] 220: Inhalation guide tube

[0186] 300 : Nozzle part

[0187] 310 : Nozzle body

[0188] 311 : Unit nozzle body

[0189] 320 : Injection body

[0190] 321 : Spray hole

[0191] 400 : Sealing plate

[0192] 500 : Controller

Claims

1. A continuous dry cleaning device positioned above the conveying path of an object to be cleaned and cleaning the upper surface of said object to be cleaned, The above continuous dry cleaning device is, A nozzle part that sprays cleaning air supplied from the outside onto the upper surface of the object to be cleaned being transported along the transport path, and A foreign matter suction part disposed on one side of the nozzle part and sucking in foreign matter scattered from the upper surface of the object to be cleaned as the cleaning air is sprayed, and It includes an auxiliary space forming part disposed on the other side of the nozzle part, which is open downward and has an auxiliary space formed inside, wherein The above foreign substance suction part is characterized in that a suction force forming space in which the foreign substance is sucked is formed, wherein the volume of the suction force forming space is formed to be smaller than the volume of the auxiliary space. Continuous dry cleaning device.

2. In Paragraph 1, A suction hole exposed to the transfer path is formed in the lower part of the above foreign substance suction part, and An opening is formed in the lower part of the above auxiliary space forming part, the lower part of which is open, The area of ​​the above opening is, Characterized by being formed narrower than the area of ​​the suction hole above, Continuous dry cleaning device.

3. In Paragraph 2, The above continuous dry cleaning device is, It has a main body in the shape of a rectangular frame with the top and bottom open, A suction duct is connected to the top of the above main body, and The nozzle part is installed in the internal space of the main body, and the two sides of the nozzle part and the two side walls of the internal space of the main body are spaced apart. The upper part of the nozzle portion is positioned at a smaller location than the upper part of the main body, and A suction force forming space is formed between one side of the nozzle part and one side wall of the internal space of the main body, and The auxiliary space is formed between the other side of the nozzle part and the other side wall of the internal space of the main body, and The lower end of the nozzle portion is characterized by being positioned along the same line as the lower end of the main body. Continuous dry cleaning device.

4. In Paragraph 3, The above suction force forming space is open along the upper and lower parts of the main body, and The above auxiliary space is characterized by being sealed toward the upper side of the main body and open along the lower side. Continuous dry cleaning device.

5. In Paragraph 4, Between the upper part of the nozzle section and the other side wall of the internal space of the main body, Characterized by a sealing plate being positioned to seal the upper part of the auxiliary space, Continuous dry cleaning device.

6. In Paragraph 5, The lower surface of the above sealing plate is, Characterized by being formed as an inclined surface or curved surface that slopes downward along the other side wall of the internal space of the main body on the other side of the nozzle portion. Continuous dry cleaning device.

7. In Paragraph 5, The above nozzle part is, It is arranged to be horizontally movable along the transfer path within the internal space of the main body, and Characterized that the area of ​​the suction hole and the area of ​​the opening are variable according to the movement of the nozzle part. Continuous dry cleaning device.

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