Circuit board cleaning equipment

Abstract

The circuit board cleaning equipment comprises a cleaning box, a separation block, an elastic belt and a transmission device, the cleaning box is hollow and forms a cleaning cavity with an upward opening, and an ultrasonic mechanism and a plurality of placing baskets are arranged in the cleaning cavity; the multiple separation blocks are laid in the containing basket in the front-back direction, and through holes extending front and back are formed in the left end and the right end of each separation block. The number of the elastic belts is at least two, one end of each elastic belt is connected with the inner side wall of the containing basket, the other end of each elastic belt is connected with a clamping block, and the at least two elastic belts are arranged in a central symmetry mode and penetrate through the through holes in the left end and the right end in the front-back direction respectively; and the output end of the transmission device is connected with the plurality of placing baskets so as to drive the plurality of placing baskets to enter and exit from the cleaning cavity. The circuit board cleaning device can solve the technical problems that a plurality of existing circuit boards are easy to damage when being cleaned, and the yield of the circuit boards is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of cleaning devices, and in particular relates to a circuit board cleaning device. Background Art

[0002] During the production of circuit boards, cleaning operations are required to remove contaminants such as stains, residues, and dust that adhere to the circuit boards during the production process. This is to prevent chemical reactions between contaminants and solder during soldering operations, or other unexpected situations between the current and contaminants when the circuit boards are put into use.

[0003] In order to improve the cleaning efficiency of circuit boards, multiple circuit boards are generally stacked and placed in a tank with cleaning liquid for cleaning. However, the stacked circuit boards are prone to collision and friction with each other, resulting in scratches and other damage to the circuit boards, reducing the yield of the circuit boards. Utility Model Content

[0004] The utility model aims to provide a circuit board cleaning device to solve the technical problem in the prior art that multiple circuit boards are easily damaged during cleaning, thereby reducing the yield of the circuit boards.

[0005] The technical solutions adopted to solve the above technical problems are:

[0006] The utility model discloses a circuit board cleaning device, comprising:

[0007] A cleaning box, wherein the cleaning box is hollow and has an upward-opening cleaning cavity, wherein an ultrasonic mechanism and a plurality of placement baskets are provided in the cleaning cavity;

[0008] A plurality of partition blocks are provided and laid in the placement basket along the front-to-back direction, and a through hole extending forward and backward is provided at the left and right ends of the partition blocks;

[0009] Elastic bands, at least two of which are provided, one end of each elastic band being connected to the inner side wall of the placement basket, the other end of each elastic band being connected to a clamping block, at least two elastic bands being centrally symmetrically arranged and having the through holes at the left and right ends respectively passing therethrough in the front-to-back direction;

[0010] A transmission device, wherein the output end of the transmission device is connected to the multiple placement baskets to drive the multiple placement baskets to enter and exit the cleaning chamber.

[0011] The present invention has at least one beneficial effect: a plurality of placement baskets are provided within the cleaning chamber, and a plurality of circuit boards can be placed within the placement baskets, thereby improving the cleaning efficiency of the circuit boards. A transmission device drives the plurality of placement baskets into the cleaning chamber, where ultrasonic cleaning is performed using an ultrasonic mechanism and cleaning fluid within the cleaning chamber. After cleaning, the transmission device extends the plurality of placement baskets out of the cleaning chamber, making it easier for workers to remove cleaned circuit boards and sequentially place circuit boards to be cleaned into the placement baskets.

[0012] A separator block and an elastic belt are provided in the placement basket. The elastic belt passes through multiple separator blocks and tightens the separator blocks through the clamping block. At least two elastic belts are symmetrically arranged centrally so that the multiple separator blocks are balanced in the placement basket. The circuit boards are inserted between two adjacent separator blocks so that the multiple circuit boards are spaced apart to avoid mutual wear of the multiple circuit boards and reduce the scrap rate of the circuit boards during the cleaning process. Moreover, since the elastic belt collects the separator blocks and the circuit boards inserted therein, even if the number of circuit boards in the placement basket is small, the elastic belt can still keep the multiple circuit boards at an orderly spacing.

[0013] As a further improvement of the above technical solution, the inner side wall of the placement basket along the front-to-back direction is provided with a hooking piece, the blocking block is provided with a connecting hole, the middle end of the elastic band is wrapped around the hooking piece and the elastic band is divided into two sections, both sections of the elastic band are passed through a plurality of the through holes located at the left end or the right end, and one section of the elastic band is connected to the inner side wall of the placement basket after passing through the connecting hole.

[0014] Through the above arrangement, one end of the elastic band is connected and fixed to the inner wall of the placement basket, and the other end passes through the connecting hole and multiple through holes and then is wrapped around the hook piece, and then passes through multiple through holes again and is connected to the clamping block, so that the elastic band is supported by the inner wall of the placement basket, the hook piece and the clamping block on which the elastic band is sleeved, ensuring that the elastic band is arranged in the front-to-back direction, better tightening the partition block, and preventing the partition block from tipping forward and backward.

[0015] As a further improvement of the above technical solution, the hooking member is provided with connecting members at the front and rear sides respectively, the connecting members are connected to the other inner side wall of the placement basket along the front-to-back direction, and the connecting members and the elastic band are detachably connected.

[0016] Through the above arrangement, the connector and the elastic band are detachably connected, which makes it easy to remove an old elastic band that has lost its elasticity and replace it with a new elastic band, thereby ensuring that the two adjacent partition blocks can clamp the circuit board.

[0017] As a further improvement of the above technical solution, four elastic bands are provided, and the dividing block is provided with four through holes in the left-right direction and the up-down direction respectively. The four through holes are distributed in a rectangular shape. The two elastic bands connected to the front wall of the placement basket are respectively passed through two through holes arranged diagonally, and the two elastic bands connected to the rear wall of the placement basket are respectively passed through another two through holes arranged diagonally.

[0018] Through the above arrangement, the four through holes are distributed in a rectangular shape, and therefore, the four elastic bands are also distributed in a rectangular shape. The two elastic bands connected to the front wall of the placement basket pass through two through holes that are distributed diagonally, and the two elastic bands connected to the rear wall of the placement basket pass through two through holes that are distributed diagonally, so that the force directions of the adjacent two ends of the dividing block are opposite, further improving the balance of the dividing block in the placement basket and preventing the dividing block from tipping forward and backward.

[0019] As a further improvement of the above technical solution, the front end face and the rear end face of the partition block extend upwardly and inclined in a direction approaching each other, and are respectively formed with two guide surfaces, and the two guide surfaces of two adjacent partition blocks approaching each other form a guide opening.

[0020] Through the above arrangement, workers can directly place the lower end of the circuit board into the guide port and insert it downward. At this time, the circuit board can be directly inserted between two adjacent partition blocks. Workers do not need to manually pry open the two adjacent partition blocks to create a gap for the circuit board to be inserted, thereby improving the insertion efficiency of the circuit board. Workers can also quickly see whether there is a circuit board inserted between two adjacent partition blocks, ensuring that each placement basket can be filled with circuit boards.

[0021] As a further improvement of the above technical solution, the connecting ends of the two guide surfaces are provided with rounded corners.

[0022] The above arrangement avoids the situation in which, when a circuit board is inserted between two adjacent separation blocks, the circuit board collides with the upwardly inclined tips of the two guide surfaces, causing damage to the circuit board and increasing the scrap rate of the circuit board.

[0023] As a further improvement of the above technical solution, the separation block is provided with weight-reducing holes that are connected front to back.

[0024] Through the above arrangement, the material cost and weight of the partition block are reduced, the supporting burden of the elastic belt is reduced, and the service life of the elastic belt is extended.

[0025] As a further improvement of the above technical solution, the placement basket is provided with a water-permeable hole, and the water-permeable hole connects the inner wall surface and the outer wall surface of the placement basket.

[0026] The above arrangement facilitates rapid filtration of impurities and cleaning liquid in the basket after cleaning, thereby improving the drying efficiency of the circuit boards and preventing a large amount of water stains from remaining on the removed circuit boards.

[0027] As a further improvement of the above technical solution, the output end of the transmission device moves in the up and down directions and is connected to a lifting frame. The transmission device is provided with two and its output ends are respectively connected to the opposite ends of the lifting frame, and the opposite ends of the multiple placement baskets are connected to the inner side wall of the lifting frame.

[0028] Through the above arrangement, the output ends of the two transmission devices simultaneously drive the lifting frame to move up and down, thereby enabling multiple placement baskets to enter and exit the cleaning chamber. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0030] Figure 1 This is a schematic diagram of the overall structure of the circuit board cleaning device provided by an embodiment of the utility model;

[0031] Figure 2 is a cross-sectional view of a circuit board cleaning device provided by an embodiment of the present utility model;

[0032] Figure 3 This is a structural diagram of a placement basket provided by an embodiment of the present utility model;

[0033] Figure 4 This is a schematic structural diagram of a separator block provided by an embodiment of the present utility model;

[0034] Figure 5 This is a top cross-sectional view of a placement basket provided by an embodiment of the present utility model;

[0035] Figure 6 This is a top sectional view of a placement basket provided by another embodiment of the utility model.

[0036] The following are marked in the accompanying drawings:

[0037] 100. Circuit board cleaning equipment;

[0038] 200, cleaning box; 210, cleaning chamber; 220, ultrasonic mechanism;

[0039] 300, placement basket; 310, installation cavity; 320, hooking member; 330, connecting member; 340, water permeable hole;

[0040] 400, separator; 410, through hole; 420, guide surface; 430, guide opening; 440, weight-reducing hole;

[0041] 500, elastic band;

[0042] 600, card block; 610, connection hole;

[0043] 700, transmission device; 710, lifting frame;

[0044] 800. Circuit board. DETAILED DESCRIPTION

[0045] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0046] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0047] In the description of this utility model, if the word "several" or "several" is used, it means one or more, and "more" means two or more. "greater than," "less than," and "exceed" are understood to exclude the number itself, while "above," "below," and "within" are understood to include the number itself. The use of the words "first," "second," and "third" is only for the purpose of distinguishing technical features and is not to be construed as indicating or implying relative importance, or implicitly indicating the number of the indicated technical features, or implicitly indicating the order of the indicated technical features.

[0048] It should be noted that in the drawings, the X direction is from the back side to the front side of the circuit board cleaning equipment; the Y direction is from the left side to the right side of the circuit board cleaning equipment; and the Z direction is from the bottom side to the top side of the circuit board cleaning equipment.

[0049] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0050] Reference Figures 1 to 6 , several embodiments of the circuit board cleaning device of the present invention are given below.

[0051] like Figures 1 to 6 As shown, the circuit board cleaning device 100 according to the embodiment of the present invention includes a cleaning box 200 , a partition block 400 , an elastic belt 500 and a transmission device 700 .

[0052] It is understood that the cleaning box 200 is hollow and has a cleaning chamber 210 for containing cleaning liquid. The opening of the cleaning chamber 210 is set upward to facilitate workers to put the circuit board 800 to be cleaned from top to bottom for cleaning. An ultrasonic mechanism 220 is provided in the cleaning chamber 210 to ultrasonically clean the surface of the circuit board 800 with the cleaning liquid, thereby removing contaminants such as those on the circuit board 800. Figure 2 A plurality of placement baskets 300 are provided in the cleaning chamber 210 . The placement baskets 300 are provided with mounting cavities 310 with upward openings. The mounting cavities 310 are used to place the circuit boards 800 .

[0053] It is understandable that a plurality of partition blocks 400 are provided in the installation cavity 310, such as Figure 1 、 Figure 2 、 Figure 3 、 Figure 5 and Figure 6 As shown, the separator blocks 400 are used to separate the multiple circuit boards 800 in the installation cavity 310. The separator blocks 400 are laid horizontally in the front-to-back direction. The circuit boards 800 can be inserted between two adjacent separator blocks 400 so that the multiple circuit boards 800 in the installation cavity 310 can be laid in an orderly and spaced manner in the front-to-back direction, effectively preventing the two adjacent circuit boards 800 from colliding and rubbing, and reducing the scrap rate caused by cleaning the circuit boards 800. The left and right ends of the separator blocks 400 are each provided with a through hole 410 extending forward and backward. The through holes 410 of each separator block 400 are arranged relative to each other in the front and back directions, as shown in FIG. Figure 4 shown.

[0054] It is understood that the number of through holes 410 of the partition block 400 corresponds to the number of elastic bands 500. Since the left and right ends of the partition block 400 are both provided with through holes 410, at least two elastic bands 500 are provided. One end of each elastic band 500 is connected to the inner wall of the placement basket 300, and the other end is connected to the clamping block 600. Figure 5 and Figure 6 As shown, each elastic band 500 passes through all the through holes 410 located at the left end or the right end, and the clamping block 600 is used to limit the multiple dividing blocks 400 to prevent the through holes 410 of the dividing blocks 400 from being separated from the elastic band 500.

[0055] It can be understood that at least two elastic bands 500 are symmetrically arranged and penetrate through holes 410 along the front-to-back direction. Therefore, one end of at least one elastic band 500 is connected to the inner front wall of the placement basket 300, and one end of at least one elastic band 500 is connected to the inner rear wall of the placement basket 300. At least two elastic bands 500 pull the partition blocks 400 from the front-to-back direction respectively, so that all the partition blocks 400 are in a balanced state, such as Figure 5 and Figure 6 When a plurality of circuit boards 800 are respectively inserted between two adjacent separation blocks 400 , the circuit boards 800 can be in a balanced state, thus preventing the circuit boards 800 from tipping over.

[0056] It is understood that due to the elastic force of the elastic band 500, the circuit board 800 is clamped between two adjacent separators 400. Even if a small number of circuit boards 800 are placed in the installation cavity 310, the circuit board 800 can still be securely clamped between the two adjacent separators 400. The circuit board cleaning device 100 is also suitable for use with circuit boards 800 of varying thicknesses. The elastic force of the elastic band 500 automatically causes the separators 400 to clamp the circuit board 800.

[0057] It can be understood that when the circuit board 800 is inserted between two adjacent partition blocks 400, the elastic band 500 passing through the left end through hole 410 and the right end through hole 410 can limit the circuit board 800 from the left and right directions, preventing the circuit board 800 from escaping from the partition block 400 along the left and right directions and colliding with the inner wall of the placement basket 300, such as Figure 5 and Figure 6 shown.

[0058] It can be understood that the output end of the transmission device 700 is connected to multiple placement baskets 300, thereby driving the multiple placement baskets 300 in and out of the cleaning chamber 210, so that the multiple placement baskets 300 can be immersed in the cleaning liquid for ultrasonic cleaning, or extended out of the cleaning chamber 210 to facilitate workers to load and unload circuit boards 800 from the placement baskets 300.

[0059] With this configuration, when using the circuit board cleaning apparatus 100, the actuator 700 is activated to extend the multiple placement baskets 300 out of the cleaning chamber 210. A worker then inserts multiple circuit boards 800 between two adjacent partitions 400. The actuator 700 and ultrasonic mechanism 220 are then activated to immerse the placement baskets 300 in the cleaning fluid, thereby rapidly cleaning the multiple circuit boards 800 and improving cleaning efficiency. After cleaning is complete, the actuator 700 is activated again to extend the placement baskets 300 out of the cleaning chamber 210, facilitating removal of the circuit boards 800.

[0060] In this embodiment, the cleaning box 200 and the placement basket 300 are both cubic structures, and correspondingly, the cleaning cavity 210 and the installation cavity 310 are also cubic structures.

[0061] In some embodiments, the elastic member is laid in a straight line along the front-to-back direction, that is, one end of the elastic band 500 is connected to the inner wall of the placement basket 300, and the other end is connected to the clamping block 600, and a plurality of through holes 410 of the partition blocks 400 are provided in the middle. Figure 6 However, since the elastic bands 500 have little supporting effect on the separator 400, even if two elastic bands 500 pull the left and right ends of the separator 400 from the front and back directions respectively, the separator 400 is likely to fall over, thereby causing the circuit board 800 inserted therein to fall over.

[0062] In this embodiment, the inner front wall and the inner rear wall of the placement basket 300 are both provided with a hooking piece 320, and the hooking piece 320 corresponds to the end of the elastic band 500 connected to the inner wall of the placement basket 300. The middle end of the elastic band 500 is wrapped with the hooking piece 320. The elastic band 500 is divided into a first section and a second section with the hooking piece 320 as the origin. The ends of the two sections of the elastic band 500 away from the hooking piece 320 are the head end and the tail end of the elastic band 500 respectively. The two sections of the elastic band 500 are extended and laid along the front-to-back direction. Figure 5 and Figure 6 shown.

[0063] It can be understood that the first section and the second section both pass through the through holes 410 at the left end or the through holes 410 at the right end of the plurality of partition blocks 400, that is, the two sections of the elastic band 500 pass through the same through hole 410 of each partition block 400, wherein the card block 600 is provided with a connecting hole 610 for the elastic band 500 to pass through, as shown in FIG. Figure 5 As shown, the head end of the elastic band 500 passes through the through hole 410 and the connecting hole 610 and then connects to the inner wall of the placement basket 300 , and the head end of the elastic band 500 is connected to the clamping block 600 .

[0064] With this arrangement, the first elastic band is supported at both ends in the front-to-back direction by the hook member 320 and the inner wall of the placement basket 300, respectively. The second elastic band is supported at both ends in the front-to-back direction by the hook member 320 and the clamping block 600, which is fitted with the first elastic band. This ensures that the elastic band 500 is laid straight in the front-to-back direction. The first and second elastic bands are inserted through the through-holes 410 on the left or right ends of all dividers 400, further stabilizing the left or right ends of the dividers 400 and preventing them from tipping over. Furthermore, the elastic action of the elastic band 500 causes the clamping block 600 to move toward the hook member 320, thereby tightening the multiple dividers 400 and clamping the circuit boards 800 located therein.

[0065] Furthermore, the outer cover of the first section of the elastic belt is provided with a round rod, which is passed through the through hole 410 and the connecting hole 610. The two ends of the round rod are connected to the inner side wall of the placement basket 300 along the front-to-back direction. The connecting end of the round rod and the placement basket 300 is provided with a notch for the elastic belt 500 to enter and exit.

[0066] It is understandable that the elasticity of the elastic band 500 decreases after long-term use. At this time, the clamping block 600 cannot tighten all the partition blocks 400, and the circuit board 800 cannot be clamped between two adjacent partition blocks 400.

[0067] In this regard, the inner side wall of the basket 300 and the elastic band 500 are detachably connected. Specifically, a connecting piece 330 is fixed to the inner side wall of the basket 300, such as Figure 2 、 Figure 5 and Figure 6 As shown, the number of connecting members 330 is the same as the number of hooking members 320, and the connecting members 330 and the hooking members 320 correspond to each other in the front-to-back direction. One end of the elastic band 500 is connected to the connecting member 330 by binding, thereby connecting the elastic band 500 to the inner wall of the storage basket 300. The old elastic band 500 can be removed from the connecting member 330 by loosening or cutting it, and a new elastic band 500 can be tied on.

[0068] It is understood that the connecting member 330 and the hooking member 320 can be symmetrical ring-shaped structures to facilitate the bundling and winding of the elastic band 500. The inner wall of the storage basket 300 can be provided with screw holes, and screws corresponding to the screw holes extend from the ring-shaped connecting member 330 and the hooking member 320. The connecting member 330 and the hooking member 320 are threadedly connected to the inner wall of the storage basket 300.

[0069] It can be understood that the number of the elastic bands 500 corresponds to the number of the through holes 410 of the partition block 400 .

[0070] In some embodiments, two elastic bands 500 are provided, and a through hole 410 is provided at the left and right ends of the dividing block 400. When in use, one elastic band 500 pulls the card block 600 from the front, and the other elastic band 500 pulls the card block 600 from the rear, thereby causing the left and right ends of the dividing block 400 to be pulled forward and backward by the card block 600 respectively.

[0071] In this embodiment, four elastic bands 500 are provided, and the divider block 400 is provided with four through-holes 410 in both the left and right directions and the top and bottom directions. Specifically, two through-holes 410 are provided at the left end of the divider block 400, spaced vertically apart, and two through-holes 410 are provided at the right end, spaced vertically apart. The four through-holes 410 are arranged in a rectangular pattern. Two elastic bands 500 are connected to the inner front wall of the basket 300 to allow the clamping block 600 to tighten the divider block 400 rearward. The other two elastic bands 500 are connected to the inner rear wall of the basket 300 to allow the clamping block 600 to tighten the divider block 400 forward. The two elastic bands 500 connected to the inner front wall of the basket 300 are respectively passed through two through-holes 410 diagonally spaced in the divider block 400, while the two elastic bands 500 connected to the inner rear wall of the basket 300 are respectively passed through two through-holes 410 diagonally spaced in the divider block 400. Taking the lower left end of the dividing block 400 as an example, when the lower left end of the dividing block 400 is tightened forward, the adjacent upper left end and lower right end of the dividing block 400 are tightened backward, thereby keeping the dividing block 400 in a balanced state and preventing the left end or right end of the dividing block 400 from shifting forward and backward.

[0072] It is understandable that, since the plurality of spacer blocks 400 are tightened by the clamping block 600 and the elastic band 500 , it is difficult for the circuit board 800 to be directly inserted between two adjacent spacer blocks 400 .

[0073] In this regard, the front end of the partition block 400 is obliquely extended with a guide surface 420 upward and backward, and the rear end of the partition block 400 is obliquely extended with a guide surface 420 upward and forward. Figure 2 and Figure 4 The two adjacent guide surfaces 420 of the two adjacent partition blocks 400 are close to each other and form a guide opening 430. The cross section of the guide opening 430 is in the shape of an inverted triangle. Figure 2 and Figure 3 When inserting the circuit board 800 , the lower end of the circuit board 800 can be inserted downwardly along the two guide surfaces 420 between two adjacent partition blocks 400 , so as to facilitate the quick and orderly installation of the circuit board 800 in the installation cavity 310 .

[0074] It can be understood that the connecting ends of the two guide surfaces 420 are rounded to make the connecting ends of the two guide surfaces 420 of the dividing block 400 round and smooth, so as to avoid the situation where the lower end of the circuit board 800 collides with the sharp connecting ends of the two guide surfaces 420 when the circuit board 800 is inserted downward into the guide port 430, thereby avoiding damage to the circuit board 800.

[0075] It is understandable that the partition block 400 is provided with a weight-reducing hole 440, such as Figure 2 、 Figure 4 、 Figure 5 and Figure 6 As shown in the figure, the provision of the weight-reducing holes 440 can reduce the weight of the separator block 400, thereby reducing the weight burden on the elastic band 500. The weight-reducing holes 440 can also reduce the material usage and cost of the separator block 400, thereby lowering the investment cost of the circuit board cleaning equipment 100. The weight-reducing holes 440 extend forward and backward, connecting the front and rear walls of the separator block 400, thereby increasing the contact area between the circuit board 800 and the cleaning fluid, thereby improving the cleaning effect and efficiency of the ultrasonic mechanism 220 and the cleaning fluid on the circuit board 800.

[0076] In some embodiments, the partition block 400 is a square structure, and the weight-reducing hole 440 is provided and located in the middle of the partition block 400, so that the partition block 400 is a square ring structure, such as Figure 4 As shown, the area of ​​the lightening hole 440 is larger, further increasing the contact area between the cleaning liquid and the circuit board 800 .

[0077] In other embodiments, the dividing block 400 is in a crisscross shape, and correspondingly, nine weight-reducing holes 440 are provided, further reducing the material cost of the dividing block 400. The dividing block 400 includes two horizontal bars and two vertical bars, and the four through holes 410 are respectively located at the intersection of the two horizontal bars and the two vertical bars, further saving the material usage of the dividing block 400.

[0078] It is understandable that the height of the partition block 400 is smaller than the height of the circuit board 800. Figures 1 to 3 As shown, the upper end of the circuit board 800 is exposed, which facilitates the removal of the circuit board 800 after cleaning and prevents the circuit board 800 from being completely inserted between two adjacent partition blocks 400.

[0079] Furthermore, the height of the mounting cavity 310 is smaller than the height of the circuit board 800. Figures 1 to 3 As shown, the upper end of the circuit board 800 is exposed outside the installation cavity 310, which makes it easy for workers to quickly check whether a circuit board 800 is inserted between two adjacent partition blocks 400. The worker can take out the circuit board 800 from the exposed left and right ends of the circuit board 800, avoiding the partition blocks 400 close to the edge of the placement basket 300, which makes it inconvenient to take and place the circuit board 800.

[0080] It is understood that the placement basket 300 is provided with a water-permeable hole 340, and the water-permeable hole 340 conducts the outer surface of the placement basket 300 and the installation cavity 310. Figure 2 、 Figure 3 、 Figure 5 and Figure 6 When the placement basket 300 is immersed in the cleaning liquid, the cleaning liquid can quickly enter the installation cavity 310 through the water-permeable holes 340. When the placement basket 300 is extended out of the cleaning cavity 210, the cleaning liquid and the contaminants washed away from the installation cavity 310 can flow back into the cleaning cavity 210 through the water-permeable holes 340, facilitating the filtration of the cleaning liquid from the circuit board 800 and reducing cleaning liquid loss.

[0081] It is understandable that there are a plurality of water-permeable holes 340 , which are evenly distributed at the front end, rear end, left end, right end and lower end of the placement basket 300 .

[0082] In some embodiments, the water permeable hole 340 can be a circular hole. The diameter of the circular hole can be larger than the thickness of the circuit board 800, but needs to be smaller than the length of the circuit board 800 in the left and right directions to prevent the circuit board 800 from falling out of the installation cavity 310.

[0083] In other embodiments, the water hole 340 may be a rectangular hole, and the gap between the rectangular holes is smaller than the thickness of the circuit board 800 to prevent the circuit board 800 from being stuck in the water hole 340 and scratching the circuit board 800.

[0084] It is understandable that there are two transmission devices 700, and the output ends of the two transmission devices 700 are respectively connected to the opposite ends of the multiple placement baskets 300 in the horizontal direction to firmly support the multiple placement baskets 300 and enable the multiple placement baskets 300 to enter and exit the cleaning chamber 210.

[0085] In some embodiments, the transmission device 700 is a linear motion device such as an air cylinder, an oil cylinder, or an electric cylinder, which is not specifically limited here. Therefore, the output ends of the two transmission devices 700 move in the up and down directions. The circuit board cleaning device 100 includes a lifting frame 710. The lifting frame 710 is in a square shape. The horizontal ends of the two lifting frames 710 are respectively connected to the output ends of the two transmission devices 700. The front and rear ends of the multiple placement baskets 300 are respectively connected to the opposite inner front wall and inner rear wall of the lifting frame 710. Figure 1 shown.

[0086] With this arrangement, when the two transmission devices 700 are activated, the output ends of the two transmission devices 700 lift the lifting frame 710 upward, causing the multiple placement baskets 300 on the lifting frame 710 to move upward and extend out of the cleaning chamber 210. At this point, a worker can insert circuit boards 800 between two adjacent partitions 400 in the front-to-back direction, and then sequentially fill the multiple placement baskets 300 with circuit boards 800 in the left-to-right direction. When the insertion of the circuit boards 800 is complete, the transmission devices 700 are activated again. At this time, the output ends of the transmission devices 700 drive the lifting frame 710 downward, so that the multiple circuit boards 800 in all placement baskets 300 are simultaneously immersed in the cleaning solution for ultrasonic cleaning.

[0087] The above specifically describes the preferred embodiments of the present invention, but the present invention is not limited to the embodiments. Those skilled in the art may make various equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A circuit board cleaning device, characterized in that: Includes: A cleaning box, wherein the cleaning box is hollow and has an upward-opening cleaning cavity, wherein an ultrasonic mechanism and a plurality of placement baskets are provided in the cleaning cavity; A plurality of partition blocks are provided and laid in the placement basket along the front-to-back direction, and a through hole extending forward and backward is provided at the left and right ends of the partition blocks; Elastic bands, at least two of which are provided, one end of each elastic band being connected to the inner side wall of the placement basket, the other end of each elastic band being connected to a clamping block, at least two elastic bands being centrally symmetrically arranged and having the through holes at the left and right ends respectively passing therethrough in the front-to-back direction; A transmission device, wherein the output end of the transmission device is connected to the multiple placement baskets to drive the multiple placement baskets to enter and exit the cleaning chamber.

2. The circuit board cleaning device according to claim 1, characterized in that: The inner side wall of the placement basket along the front-to-back direction is provided with a hooking piece, the blocking block is provided with a connecting hole, the middle end of the elastic band is wrapped around the hooking piece and the elastic band is divided into two sections, both sections of the elastic band are passed through a plurality of the through holes located at the left end or the right end, and one section of the elastic band is connected to the inner side wall of the placement basket after passing through the connecting hole.

3. The circuit board cleaning device according to claim 2, characterized in that: The hooking member is provided with connecting members in front and back correspondingly. The connecting members are connected to the other inner side wall of the placement basket along the front-back direction. The connecting members and the elastic band are detachably connected.

4. The circuit board cleaning device according to claim 2, characterized in that: There are four elastic bands, and the dividing block is respectively provided with four through holes in the left-right direction and the up-down direction. The four through holes are distributed in a rectangular shape. The two elastic bands connected to the front wall of the placement basket are respectively passed through two through holes arranged diagonally, and the two elastic bands connected to the rear wall of the placement basket are respectively passed through another two through holes arranged diagonally.

5. The circuit board cleaning device according to claim 1, characterized in that: The front end face and the rear end face of the partition block extend upwardly and obliquely in a direction approaching each other, and are respectively formed with two guide surfaces. The two guide surfaces of two adjacent partition blocks approaching each other form a guide opening.

6. The circuit board cleaning device according to claim 5, characterized in that: The connecting ends of the two guide surfaces are provided with rounded corners.

7. The circuit board cleaning device according to claim 1, characterized in that: The partition block is provided with weight-reducing holes that are connected front to back.

8. The circuit board cleaning device according to claim 1, characterized in that: The placement basket is provided with a water-permeable hole, and the water-permeable hole connects the inner wall surface and the outer wall surface of the placement basket.

9. The circuit board cleaning device according to claim 1, characterized in that: The output end of the transmission device moves in the up and down direction and is connected to the lifting frame. The transmission device is provided with two and its output ends are respectively connected to the opposite ends of the lifting frame. The opposite ends of the multiple placement baskets are connected to the inner side wall of the lifting frame.

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