PCBA packaging device and PCBA packaging method

Abstract

The invention discloses a PCBA packaging device and a PCBA packaging method. The PCBA packaging device comprises a glue spraying assembly, a workbench, a conveying belt, a lifting assembly, a clamping plate and a blocking piece. The workbench is located below the glue spraying assembly. The conveying belt is arranged on the workbench. The lifting assembly is arranged on the workbench and provided with a standby position and a lifting position higher than the standby position. The conveying belt located on the working station is arranged around the lifting assembly. The lifting assembly comprises a lifting plate and a tensioning wheel. The center of the tensioning wheel is rotationally connected to the bottom of the lifting plate. And the top of the lifting plate is opposite to the uppermost part of the conveying belt. The bottom of the tensioning wheel is opposite to the lowermost part of the conveying belt. The clamping plate is fixedly arranged on the workbench. The clamping plate is located above the conveying belt. And when the PCBA board is blocked at the working station by the blocking piece, the conveying belt and the PCBA board are lifted by the lifting assembly, and the PCBA board is clamped by the clamping plate and the conveying belt. According to the PCBA packaging device and the PCBA packaging method, the lifting process can be more stable, and meanwhile the packaging efficiency is improved through software deviation correction.

Description

Technical Field

[0001] The present invention relates to the technical field of PCBA packaging, and in particular to a PCBA packaging device and a PCBA packaging method. Background Art

[0002] There are many packaging methods for PCBA (Printed Circuit Board + Assembly), such as coating the surface of the circuit board with conformal coating, potting and low-pressure injection molding. Each of the above methods has its own advantages and disadvantages: direct spraying of conformal coating, although simple, convenient and easy to implement, cannot truly protect the circuit board, cannot achieve waterproof and shockproof, and the packaging may fail over time; potting is cumbersome, inefficient, costly and has poor reliability; low-pressure injection molding uses low-pressure injection molding equipment, special molds, and adjusts the corresponding injection pressure and time to complete the packaging of the circuit board. This method has high mold design and production costs, and the characteristics of the glue itself have a greater impact on the packaging.

[0003] In the patent with publication number WO2023060691A1 and titled "PCBA board packaging method and packaging device thereof", the adopted solution is suitable for the reliable packaging of low-height PCBAs (PCBA boards), but the incoming PCBAs often shift. If the angle of the PCBA is not adjusted correctly in time, the defective rate of subsequent packaged products will increase.

[0004] To solve the above problems, the inventor disclosed in a patent with publication number CN116997094A titled PCBA packaging device and PCBA offset adjustment method that correction is performed by lifting and clamping. However, the outer contour of the packaging layer formed by the method disclosed in the patent in actual application has sawtooth features and position offset problems, and does not meet the micron-level packaging accuracy, especially when the packaging space is very limited, it is difficult to meet the packaging requirements.

[0005] To further solve the above problems, the inventor disclosed in the patent with publication number CN118804495A and titled PCBA Packaging Device and PCBA Deviation Correction Packaging Method that correction is performed by lifting and rotating. However, in actual application, although the method disclosed in the patent can improve the packaging accuracy by solving the offset problem of PCBA, its deviation correction process is still complicated and involves adjustments in multiple positions, so that the packaging efficiency is still low. Summary of the invention

[0006] In view of the deficiencies in the prior art, an object of the present invention is to provide a PCBA packaging device and a PCBA packaging method, which can make the lifting process more stable and use software correction to improve the packaging efficiency.

[0007] To achieve the above object, an embodiment of the present invention provides a PCBA packaging device, comprising: Glue spraying assembly for spraying glue onto PCBA board; a workbench located below the glue spraying assembly; A conveyor belt provided on the workbench for conveying the PCBA board; The lifting assembly arranged on the workbench has a standby position and a lifting position higher than the standby position; the conveyor belt located at the working station is arranged around the lifting assembly; the lifting assembly includes a lifting plate and a tensioning wheel, and the center of the tensioning wheel is rotatably connected to the bottom of the lifting plate; the top of the lifting plate is arranged opposite to the uppermost part of the conveyor belt, and the bottom of the tensioning wheel is arranged opposite to the lowermost part of the conveyor belt; when the lifting assembly is located in the standby position, the tensioning wheel presses down the lowermost part of the conveyor belt and tensions the conveyor belt, and the lifting plate does not apply a force to the conveyor belt; when the lifting assembly is located in the lifting position, the lifting plate lifts the uppermost part of the conveyor belt and tensions the conveyor belt, and the tensioning wheel does not apply a force to the conveyor belt; A clamping plate fixedly arranged on the workbench, wherein the clamping plate is located above the conveyor belt; The blocking member has a blocking position for blocking the PCBA board at the working station and a avoiding position for leaving the blocking position; when the blocking member blocks the PCBA board at the working station, the lifting assembly lifts the conveyor belt and the PCBA board, and the clamping plate and the conveyor belt clamp the PCBA board.

[0008] As a preferred embodiment, when the lifting assembly is located at the standby position and the lifting position, the total length of the conveyor belt is equal.

[0009] As a preferred implementation manner, the projection of the clamping plate on the horizontal plane partially overlaps with the projection of the conveyor belt on the horizontal plane.

[0010] As a preferred embodiment, the PCBA packaging device further includes: A driving wheel for driving the conveyor belt to rotate, wherein the conveyor belt is sleeved outside the driving wheel; A plurality of rotating wheels for limiting the rotation trajectory of the conveyor belt, the plurality of rotating wheels include two horizontally arranged first wheels and two horizontally arranged second wheels located below the first wheels; in the vertical direction, the driving wheel is located between the first and second wheels; the lifting plate is located below the conveyor belt between the two first wheels, and the tensioning wheel is located above the conveyor belt between the two second wheels; when the lifting assembly is located in the standby position, the lifting plate is not higher than the first wheel, and the tensioning wheel is lower than the second wheel; when the lifting assembly is located in the lifting position, the lifting plate is higher than the first wheel, and the tensioning wheel is not lower than the second wheel.

[0011] As a preferred embodiment, the top of the lifting plate is provided with a groove for accommodating the conveyor belt, and the width of the groove is greater than the width of the conveyor belt; when the lifting assembly is located in the standby position, there is a predetermined distance between the bottom surface of the groove and the bottom surface of the conveyor belt between the two first rotating wheels; when the lifting assembly is located in the lifting position, the bottom surface of the groove is in contact with the bottom surface of the conveyor belt between the two first rotating wheels; the top surface of the lifting plate is always lower than the top surface of the conveyor belt.

[0012] As a preferred embodiment, the PCBA packaging device further includes: A first power member connected to the lifting plate, used to drive the lifting assembly to move up and down to switch between the standby position and the lifting position; A second power member connected to the driving wheel, used to drive the driving wheel to rotate; The third power member connected to the blocking member is used to drive the blocking member to extend or retract so as to switch between the blocking position and the avoidance position.

[0013] As a preferred embodiment, the PCBA packaging device also includes two parallel supporting plates, the center rotation of the first rotating wheel is connected to the supporting plate, the clamping plate is fixedly connected to the top of the supporting plate, and the fixed end of the third power member is fixedly connected to the side of the supporting plate away from the first rotating wheel; the bottom of the supporting plate is fixedly connected with a first mounting frame and a second mounting frame, the fixed end of the first power member is fixedly connected to the bottom of the first mounting frame; the center rotation of the second rotating wheel is connected to the first mounting frame; the fixed end of the second power member is fixedly connected to the second mounting frame, and the center rotation of the driving wheel is connected to the second mounting frame.

[0014] As a preferred embodiment, a sensor is provided between the two supporting plates for detecting the position of the PCBA board; before the sensor detects that the PCBA board reaches the working station, the third power member drives the blocking member to extend to the blocking position.

[0015] As a preferred embodiment, the PCBA packaging device also includes a fourth power member connected to one of the carrier plates, for driving the carrier plate to move toward or away from the other carrier plate; the fixed end of the fourth power member is fixedly connected to the workbench.

[0016] An embodiment of the present invention provides a PCBA packaging method, wherein the PCBA packaging method uses the PCBA packaging device described in any of the above embodiments, and the PCBA packaging method comprises the following steps: Block and position the PCBA board at the working station; Lift the conveyor belt and PCBA board located at the working station, and clamp the PCBA board; Obtaining the actual position of the PCBA board at the work station; Comparing the actual position with the reference position to obtain offset data of the actual position; The glue spraying component is controlled to perform spray packaging on the PCBA board according to the offset data.

[0017] Beneficial effects:

[0018] The PCBA packaging device provided in this embodiment can lift the conveyor belt and the PCBA board together through the lifting component, making the lifting process more stable. In addition, through the cooperation of the conveyor belt, the lifting component and the clamping plate, it is only necessary to lift the PCBA board and clamp it, without providing a correction function (that is, no hardware correction is required), and subsequent software correction (refer to the substrate packaging method provided in the patent with publication number CN116056359A and the name of the substrate packaging method and substrate packaging device) is sufficient, so there is no need to adjust multiple positions, simplify the correction process, and improve the packaging efficiency.

[0019] With reference to the following description and the accompanying drawings, the specific embodiments of the present invention are disclosed in detail, indicating the manner in which the principles of the present invention can be adopted. It should be understood that the embodiments of the present invention are not limited in scope thereby.

[0020] Features described and / or illustrated with respect to one embodiment may be used in the same or similar manner in one or more other embodiments, combined with features in other embodiments, or substituted for features in other embodiments.

[0021] It should be emphasized that the term “include / comprises” when used herein refers to the presence of features, integers, steps or components, but does not exclude the presence or addition of one or more other features, integers, steps or components. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without paying creative labor.

[0023] Figure 1 A schematic diagram of the three-dimensional structure of a PCBA packaging device provided in this embodiment; Figure 2 for Figure 1 A schematic diagram of the structure of the PCBA packaging device when it carries a PCBA board; Figure 3 This is a schematic diagram of the structure of a working station on a carrier board in a PCBA packaging device provided in this embodiment; Figure 4 for Figure 3 A magnified schematic diagram from another perspective; Figure 5 for Figure 4 An enlarged schematic diagram of part I; Figure 6 for Figure 3 A partial top view of Figure 7 The following is a flowchart of the steps of a PCBA packaging method provided in this embodiment.

[0024] Description of reference numerals: 1. Conveyor belt; 2. Driving wheel; 3. Second power member; 4. First rotating wheel; 5. Second rotating wheel; 6. Third rotating wheel; 7. Lifting assembly; 71. Lifting plate; 711. Groove; 72. Tensioning wheel; 73. First power member; 8. Clamping plate; 9. Load-bearing plate; 91. First mounting frame; 92. Second mounting frame; 10. PCBA board; 11. Workbench; 12. Blocking member; 13. Third power member; 14. Sensor; 15. Fourth power member. DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0026] It should be noted that when an element is referred to as being "disposed on" another element, it may be directly on the other element or there may be another element centered thereon. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be another element centered thereon at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0028] See also Figures 1 to 6 The embodiment of the present invention provides a PCBA packaging device, including: a glue spraying assembly, a workbench 11 , a conveyor belt 1 , a lifting assembly 7 , a clamping plate 8 and a blocking member 12 .

[0029] The glue spraying assembly is used to spray glue onto the PCBA board 10. The workbench 11 is located below the glue spraying assembly. Figure 2 As shown, the conveyor belt 1 is arranged on the workbench 11 for conveying the PCBA board 10. The lifting assembly 7 is arranged on the workbench 11 and has a standby position and a lifting position higher than the standby position.

[0030] The conveyor belt 1 located at the working station is arranged around the lifting assembly 7. The lifting assembly 7 includes a lifting plate 71 and a tensioning wheel 72. The center of the tensioning wheel 72 is rotatably connected to the bottom of the lifting plate 71. The top of the lifting plate 71 is arranged opposite to the uppermost part of the conveyor belt 1. The bottom of the tensioning wheel 72 is arranged opposite to the lowermost part of the conveyor belt 1. When the lifting assembly 7 is located in the standby position, the tensioning wheel 72 presses down the lowermost part of the conveyor belt 1 and tensions the conveyor belt 1, and the lifting plate 71 does not apply a force to the conveyor belt 1. When the lifting assembly 7 is located in the lifting position, the lifting plate 71 lifts the uppermost part of the conveyor belt 1 and tensions the conveyor belt 1, and the tensioning wheel 72 does not apply a force to the conveyor belt 1.

[0031] The clamping plate 8 is fixedly arranged on the workbench 11. The clamping plate 8 is located above the conveyor belt 1. The blocking member 12 has a blocking position for blocking the PCBA board 10 at the working station and a evacuation position for leaving the blocking position. When the blocking member 12 blocks the PCBA board 10 at the working station, the lifting assembly 7 lifts the conveyor belt 1 and the PCBA board 10, and the clamping plate 8 and the conveyor belt 1 clamp the PCBA board 10.

[0032] The PCBA packaging device provided in this embodiment can lift the conveyor belt 1 and the PCBA board 10 together through the lifting component 7, making the lifting process more stable. In addition, through the cooperation of the conveyor belt 1, the lifting component 7 and the clamping plate 8, it is only necessary to lift the PCBA board 10 and then clamp it, without providing a correction function (that is, no hardware correction is required), and subsequent software correction (refer to the substrate packaging method provided in the patent with publication number CN116056359A and the name of the substrate packaging method and substrate packaging device) is sufficient, so there is no need to adjust multiple positions, simplify the correction process, and improve the packaging efficiency.

[0033] Preferably, when the lifting assembly 7 is located in the standby position and the lifting position, the total length of the conveyor belt 1 is equal, that is, the tensioning force of the tensioning wheel 72 on the conveyor belt 1 when the lifting assembly 7 is in the standby position is equal to the tensioning force of the lifting plate 71 on the conveyor belt 1 when the lifting assembly 7 is in the lifting position, thereby avoiding fatigue damage to the conveyor belt 1 caused by repeated lifting of the conveyor belt 1 and ensuring the service life of the conveyor belt 1.

[0034] like Figure 6As shown, the projection of the clamping plate 8 on the horizontal plane partially overlaps with the projection of the conveyor belt 1 on the horizontal plane. When the conveyor belt 1 transports the PCBA board 10, the conveyor belt 1 is covered by the PCBA board 10. After the PCBA board 10 is lifted, it needs to be clamped by the clamping plate 8 and the conveyor belt 1, so the clamping plate 8 needs to overlap with the conveyor belt 1, otherwise the clamped PCBA board 10 will be damaged. In addition, in order to make the usable area on the PCBA board 10 as large as possible, it is necessary to minimize the overlap between the clamping plate 8 and the conveyor belt 1, thereby reducing the area of ​​the PCBA board 10 covered by the clamping plate 8.

[0035] In this embodiment, if Figure 3 As shown, the PCBA packaging device further includes a driving wheel 2 for driving the conveyor belt 1 to rotate, and the conveyor belt 1 is sleeved outside the driving wheel 2 .

[0036] like Figure 4 As shown, the PCBA packaging device also includes a plurality of rotating wheels for defining the rotation track of the conveyor belt 1. The plurality of rotating wheels include two horizontally arranged first rotating wheels 4 and two horizontally arranged second rotating wheels 5 located below the first rotating wheels 4. In the vertical direction, the driving wheel 2 is located between the first rotating wheels 4 and the second rotating wheels 5. The lifting plate 71 is located below the conveyor belt 1 (hereinafter referred to as "upper belt") between the two first rotating wheels 4. The tensioning wheel 72 is located above the conveyor belt 1 (hereinafter referred to as "lower belt") between the two second rotating wheels 5. When the lifting assembly 7 is located in the standby position, the lifting plate 71 is not higher than the first rotating wheel 4, and the tensioning wheel 72 is lower than the second rotating wheel 5. When the lifting assembly 7 is located in the lifting position, the lifting plate 71 is higher than the first rotating wheel 4, and the tensioning wheel 72 is not lower than the second rotating wheel 5.

[0037] In this embodiment, if Figure 5 As shown, a groove 711 for accommodating the conveyor belt 1 is provided on the top of the lifting plate 71, and the width of the groove 711 is greater than the width of the conveyor belt 1, thereby reducing or eliminating the friction between the side wall of the groove 711 and the conveyor belt 1, ensuring smooth rotation of the conveyor belt 1.

[0038] Specifically, when the lifting assembly 7 is located at the standby position, there is a predetermined distance between the bottom surface of the groove 711 and the bottom surface of the conveyor belt 1 (i.e., the upper belt) between the two first rotating wheels 4, so that the lifting plate 71 does not contact the conveyor belt 1, and the lifting plate 71 has no resistance to the conveyor belt 1. When the lifting assembly 7 is located at the lifting position, the bottom surface of the groove 711 fits with the bottom surface of the conveyor belt 1 (i.e., the upper belt) between the two first rotating wheels 4, and the lifting plate 71 lifts the conveyor belt 1 and the PCBA board 10 together. During the lifting process, the PCBA board 10 is always located on the conveyor belt 1, thereby ensuring a more stable lifting and preventing the PCBA board 10 from shaking.

[0039] In this embodiment, the top surface of the lifting plate 71 (i.e., the top surface of the side wall of the groove 711) is always lower than the top surface of the conveyor belt 1, so that the PCBA board 10 is always located on the conveyor belt 1 and will not be lifted up by the lifting plate 71 and leave the conveyor belt 1, making the lifting more stable and preventing the PCBA board 10 from shaking.

[0040] In this embodiment, the PCBA packaging device further includes a first power member 73 connected to the lifting plate 71, which is used to drive the lifting assembly 7 to move up and down to switch between the standby position and the lifting position. The first power member 73 can be a linear motor.

[0041] Specifically, the driving wheel 2 is connected to a second power member 3 for driving the driving wheel 2 to rotate. The second power member 3 is located on a side of the lifting plate 71 away from the driving wheel 2. The second power member 3 can be a rotary motor.

[0042] The PCBA packaging device further comprises a third power member 13 connected to the blocking member 12, for driving the blocking member 12 to extend or retract to switch between the blocking position and the avoidance position. The third power member 13 can be a linear motor.

[0043] like Figures 1 to 3 As shown, the PCBA packaging device further includes two parallel supporting plates 9. The components on the two supporting plates 9 are symmetrically arranged in pairs. The center of the first rotating wheel 4 is rotatably connected to the supporting plate 9, and the clamping plate 8 is fixedly connected to the top of the supporting plate 9. The supporting plate 9 provides a reliable and stable connection for the PCBA packaging device.

[0044] Specifically, the fixed end of the third power member 13 is fixedly connected to the side of the bearing plate 9 away from the first rotating wheel 4. Figure 4As shown, the bottom of the carrying plate 9 is fixedly connected with a first mounting frame 91 and a second mounting frame 92, and the fixed end of the first power member 73 is fixedly connected to the bottom of the first mounting frame 91. The center of the second rotating wheel 5 is rotatably connected to the first mounting frame 91. The fixed end of the second power member 3 is fixedly connected to the second mounting frame 92, and the center of the driving wheel 2 is rotatably connected to the second mounting frame 92.

[0045] Preferably, the driving wheel 2 is arranged close to the second rotating wheel 5, and the rotating wheel further comprises two third rotating wheels 6 arranged horizontally between the first rotating wheel 4 and the rotating wheel to ensure smooth rotation of the conveyor belt 1. The conveyor belt 1 at the working station passes through the first rotating wheel 4, the third rotating wheel 6, the driving wheel 2, the third rotating wheel 6, the second rotating wheel 5, (the tensioning wheel 72,) the second rotating wheel 5 and the first rotating wheel 4 in sequence.

[0046] like Figure 1 As shown, a sensor 14 is provided between the two carrying plates 9 for detecting the position of the PCBA board 10. A sensor 14 can be provided at each conveyor belt 1, so that the specific position of the PCBA board 10 can be clearly identified. Before the sensor 14 detects that the PCBA board 10 reaches the working station, the third power member 13 drives the blocking member 12 to extend to the blocking position. After the blocking member 12 blocks the PCBA board 10 at the working station, the second power member 3 is shut down to stop the conveyor belt 1 from rotating. At this time, the third power member 13 drives the blocking member 12 to retract to the avoidance position (or after the lifting assembly 7 is in the lifting position, the third power member 13 drives the blocking member 12 to retract to the avoidance position).

[0047] In this embodiment, the PCBA packaging device may further include a fourth power member 15 connected to one of the carrier plates 9, for driving the carrier plate 9 to move toward or away from the other carrier plate 9, so that the PCBA packaging device can be suitable for packaging PCBA boards 10 of different widths. The fixed end of the fourth power member 15 is fixedly connected to the workbench 11.

[0048] In a specific application scenario, the glue spraying assembly can be moved to the working station first, and the conveyor belt 1 is used to convey the PCBA board 10. When the sensor 14 detects that the PCBA board 10 moves to the working station, the third power member 13 drives the blocking member 12 to extend to the blocking position, and then the blocking member 12 blocks the PCBA board 10 at the working station, and then the second power member 3 is shut down to stop the conveyor belt 1 from rotating; the third power member 13 can drive the blocking member 12 to retract to the avoidance position; the first power member 73 is started, driving the lifting assembly 7 to move upward to the lifting position, lifting the conveyor belt 1 and the PCBA board 10, and the clamping plate 8 and the conveyor belt 1 clamp the PCBA board 10. Subsequently, it is necessary to combine the substrate packaging method provided in the patent entitled Substrate Packaging Method and Substrate Packaging Device with the publication number CN116056359A, obtain the actual position of the PCBA board 10 at the working station, compare the actual position with the reference position to obtain the offset data of the actual position, and control the glue spraying assembly to perform spray packaging on the PCBA board 10 according to the offset data. After spraying is completed, the glue spraying assembly is removed from the working station, the first power member 73 is started, and the first power member 73 drives the lifting assembly 7 to move downward from the lifting position to the standby position, and the second power member 3 is started to drive the driving wheel 2 to rotate, so that the conveyor belt 1 continues to rotate, and the packaged PCBA board 10 located at the working station is transferred to the next station, and then the glue spraying assembly is moved to the working station, and the conveyor belt 1 is used to transfer the next PCBA board 10 to be packaged to the working station, and the above operation is performed again.

[0049] like Figure 7 As shown, an embodiment of the present invention further provides a PCBA packaging method, comprising the following steps: Step S10: Block and position the PCBA board 10 at a working station; Step S20: lifting the conveyor belt 1 and the PCBA board 10 at the working station, and clamping the PCBA board 10; Step S30: obtaining the actual position of the PCBA board 10 at the working station; Step S40: Compare the actual position with the reference position to obtain offset data of the actual position; Step S50: controlling the glue spraying assembly to perform spray packaging on the PCBA board 10 according to the offset data.

[0050] The PCBA packaging method provided in this embodiment can be performed by any of the above-mentioned PCBA packaging devices. The method implementation corresponds to the device implementation, which can solve the technical problems solved by the device implementation and achieve the technical effects of the device implementation accordingly. The specific invention will not be described in detail here.

[0051] In this embodiment, the conveyor belt 1 and the PCBA board 10 can be lifted together by the lifting assembly 7, so that the lifting process is more stable. In addition, through the cooperation of the conveyor belt 1, the lifting assembly 7 and the clamping plate 8, it is only necessary to lift the PCBA board 10 and then clamp it, without providing a correction function (that is, no hardware correction is required), and the subsequent software correction (that is, step S30, step S40 and step S50) is sufficient, so there is no need to adjust multiple positions, simplifying the correction process, and improving the packaging efficiency.

[0052] Unless otherwise indicated, all ranges include the endpoints and all numbers between the endpoints. "About" or "approximately" used with a range applies to both endpoints of the range. Thus, "about 20 to 30" is intended to cover "about 20 to about 30", including at least the specified endpoints.

[0053] All articles and references disclosed, including patent applications and publications, are incorporated herein by reference for all purposes. The term "consisting essentially of..." to describe a combination should include the identified elements, ingredients, parts or steps and other elements, ingredients, parts or steps that do not substantially affect the basic novel characteristics of the combination. The use of the terms "comprising" or "including" to describe a combination of elements, ingredients, parts or steps herein also contemplates embodiments that consist essentially of these elements, ingredients, parts or steps. By using the term "may", it is intended to indicate that any attribute described that "may" include is optional.

[0054] Multiple elements, ingredients, parts or steps can be provided by a single integrated element, ingredient, part or step. Alternatively, a single integrated element, ingredient, part or step can be divided into separate multiple elements, ingredients, parts or steps. The disclosure "one" or "an" used to describe an element, ingredient, part or step is not intended to exclude other elements, ingredients, parts or steps.

[0055] It should be understood that the above description is for illustration and not for limitation. Many embodiments and many applications beyond the examples provided will be apparent to those skilled in the art upon reading the above description. Therefore, the scope of the present teachings should not be determined with reference to the above description, but should be determined with reference to the appended claims and the full scope of equivalents possessed by such claims. For the purpose of comprehensiveness, all articles and references, including disclosures of patent applications and publications, are incorporated herein by reference. The omission of any aspect of the subject matter disclosed herein in the preceding claims is not intended to be a waiver of the subject matter, nor should it be considered that the inventors did not consider the subject matter to be part of the disclosed inventive subject matter.

Claims

1. A PCBA packaging device, characterized in that: include: Glue spraying assembly for spraying glue onto PCBA board; a workbench located below the glue spraying assembly; A conveyor belt provided on the workbench for conveying the PCBA board; The lifting assembly arranged on the workbench has a standby position and a lifting position higher than the standby position; the conveyor belt located at the working station is arranged around the lifting assembly; the lifting assembly includes a lifting plate and a tensioning wheel, and the center of the tensioning wheel is rotatably connected to the bottom of the lifting plate; the top of the lifting plate is arranged opposite to the uppermost part of the conveyor belt, and the bottom of the tensioning wheel is arranged opposite to the lowermost part of the conveyor belt; when the lifting assembly is located at the standby position, the tensioning wheel presses down the lowermost part of the conveyor belt and tensions the conveyor belt, and the lifting plate does not apply a force to the conveyor belt; When the lifting assembly is located at the lifting position, the lifting plate lifts the uppermost portion of the conveyor belt and tensions the conveyor belt, and the tensioning wheel does not apply force to the conveyor belt; A clamping plate fixedly arranged on the workbench, wherein the clamping plate is located above the conveyor belt; The blocking member has a blocking position for blocking the PCBA board at the working station and a avoiding position for leaving the blocking position; when the blocking member blocks the PCBA board at the working station, the lifting assembly lifts the conveyor belt and the PCBA board, and the clamping plate and the conveyor belt clamp the PCBA board.

2. The PCBA packaging device according to claim 1, characterized in that: When the lifting assembly is located at the standby position and the lifting position, the total length of the conveyor belt is equal.

3. The PCBA packaging device according to claim 1, characterized in that: The projection of the clamping plate on the horizontal plane partially overlaps with the projection of the conveyor belt on the horizontal plane.

4. The PCBA packaging device according to claim 1, characterized in that: The PCBA packaging device further includes: A driving wheel for driving the conveyor belt to rotate, wherein the conveyor belt is sleeved outside the driving wheel; A plurality of rotating wheels for limiting the rotation trajectory of the conveyor belt, the plurality of rotating wheels include two horizontally arranged first wheels and two horizontally arranged second wheels located below the first wheels; in the vertical direction, the driving wheel is located between the first and second wheels; the lifting plate is located below the conveyor belt between the two first wheels, and the tensioning wheel is located above the conveyor belt between the two second wheels; when the lifting assembly is located in the standby position, the lifting plate is not higher than the first wheel, and the tensioning wheel is lower than the second wheel; when the lifting assembly is located in the lifting position, the lifting plate is higher than the first wheel, and the tensioning wheel is not lower than the second wheel.

5. The PCBA packaging device according to claim 4, characterized in that: A groove for accommodating the conveyor belt is provided on the top of the lifting plate, and the width of the groove is greater than the width of the conveyor belt; when the lifting assembly is located in the standby position, there is a predetermined distance between the bottom surface of the groove and the bottom surface of the conveyor belt between the two first rotating wheels; when the lifting assembly is located in the lifting position, the bottom surface of the groove is in contact with the bottom surface of the conveyor belt between the two first rotating wheels; the top surface of the lifting plate is always lower than the top surface of the conveyor belt.

6. The PCBA packaging device according to claim 4, characterized in that: The PCBA packaging device further includes: A first power member connected to the lifting plate, used to drive the lifting assembly to move up and down to switch between the standby position and the lifting position; A second power member connected to the driving wheel, used to drive the driving wheel to rotate; The third power member connected to the blocking member is used to drive the blocking member to extend or retract so as to switch between the blocking position and the avoidance position.

7. The PCBA packaging device according to claim 6, characterized in that: The PCBA packaging device also includes two parallel supporting plates, the center of the first rotating wheel is rotatably connected to the supporting plates, the clamping plate is fixedly connected to the top of the supporting plate, and the fixed end of the third power member is fixedly connected to the side of the supporting plate away from the first rotating wheel; the bottom of the supporting plate is fixedly connected to the first mounting frame and the second mounting frame, the fixed end of the first power member is fixedly connected to the bottom of the first mounting frame; the center of the second rotating wheel is rotatably connected to the first mounting frame; the fixed end of the second power member is fixedly connected to the second mounting frame, and the center of the driving wheel is rotatably connected to the second mounting frame.

8. The PCBA packaging device according to claim 7, characterized in that: A sensor is provided between the two carrying plates for detecting the position of the PCBA board; before the sensor detects that the PCBA board reaches the working station, the third power member drives the blocking member to extend to the blocking position.

9. The PCBA packaging device according to claim 7, characterized in that: The PCBA packaging device also includes a fourth power member connected to one of the carrier plates, and is used to drive the carrier plate to move toward or away from the other carrier plate; the fixed end of the fourth power member is fixedly connected to the workbench.

10. A PCBA packaging method, characterized in that: The PCBA packaging method uses the PCBA packaging device as described in any one of claims 1 to 9, and the PCBA packaging method includes the following steps: Block and position the PCBA board at the working station; Lift the conveyor belt and PCBA board located at the working station, and clamp the PCBA board; Obtaining the actual position of the PCBA board at the work station; Comparing the actual position with the reference position to obtain offset data of the actual position; The glue spraying component is controlled to perform spray packaging on the PCBA board according to the offset data.

Images