Double-sided adhesive dispensing device for PCB (Printed Circuit Board)

Abstract

The invention discloses a double-sided adhesive dispensing device for a PCB (Printed Circuit Board), which comprises a control box, two adhesive dispensing mechanisms and a turnover device are arranged in the control box, the adhesive dispensing mechanisms and the turnover device are arranged on a bottom plate, the two adhesive dispensing mechanisms are respectively positioned on two sides of the turnover device, and the turnover device is arranged on the bottom plate. The dispensing mechanism comprises a glue gun, a first displacement mechanism and a second displacement mechanism, the first displacement mechanism is used for controlling the movement of the glue gun, the first displacement mechanism comprises an X-direction displacement mechanism, a Y-direction displacement mechanism and a Z-direction displacement mechanism, the second displacement mechanism is used for controlling the movement of a PCB, and the turnover device is used for turning over the PCB; the control box comprises a frame of a cuboid structure, sealing plates are arranged on the upper end face, the lower end face, the side faces and the rear end face of the frame, a sealing plate is arranged on the lower section of the front end face of the frame, a door plate is arranged on the upper section of the frame, a control panel and a reset button are arranged on the door plate, and an alarm indicator lamp is arranged on the sealing plate located on the upper end face.

Description

Technical Field

[0001] The invention relates to a double-sided glue dispensing device for PCB. Background Art

[0002] PCB (Printed Circuit Board), also known as printed circuit board in Chinese, is an important electronic component, a support for electronic components, and a carrier for the electrical connection of electronic components. In order to protect the circuit board from the erosion of the harsh environment, improve and extend the service life of the product, and ensure the safety and reliability during use, it is necessary to spray the PCB with three-proof glue for protection. Traditional dispensing equipment can only process PCB workpieces of a certain fixed size, and the scope of application is small. When the PCB needs to be double-sided glued, two production lines are required, which is costly and the line change operation requires a lot of line change time. Summary of the invention

[0003] The purpose of the present invention is to solve the above deficiencies in the prior art and provide a double-sided glue dispensing device for PCB.

[0004] A double-sided glue dispensing device for PCB, comprising a control box, wherein two glue dispensing mechanisms and a flipping device are arranged in the control box, wherein the glue dispensing mechanisms and the flipping device are both mounted on a bottom plate, wherein the two glue dispensing mechanisms are respectively located on both sides of the flipping device, wherein the glue dispensing mechanisms comprise a glue gun, a first displacement mechanism, and a second displacement mechanism, wherein the first displacement mechanism is used to control the movement of the glue gun, wherein the first displacement mechanism comprises an X-direction displacement mechanism, a Y-direction displacement mechanism, and a Z-direction displacement mechanism, wherein the second displacement mechanism is used to control the movement of the PCB, and wherein the flipping device is used to flip the PCB;

[0005] The control box includes a rectangular structure frame, whose upper end face, lower end face, side face and rear end face are all provided with sealing plates, the lower section of the front end face is provided with a sealing plate, the upper section is provided with a door panel, the door panel is provided with a control panel and a reset button, and the sealing plate on the upper end face is provided with an alarm indicator light.

[0006] Furthermore, the Y-axis displacement mechanism includes a first mounting plate, a second mounting plate, a first slide seat, and a second slide seat, and both ends of the bottom surfaces of the first mounting plate and the second mounting plate are respectively connected to one end of a column, and the other end of the column is fixed to the bottom plate;

[0007] Two parallel first slide rails are arranged on the first mounting plate, a first screw rod is arranged between the two slide rails, two ends of the first screw rod are rotatably connected to the first fixing seat and the second fixing seat through bearings respectively, the first fixing seat is located at the front end of the first mounting plate, the second fixing seat is located at the rear end of the first mounting plate, a first motor is arranged on the first fixing seat, and an output end of the first motor is connected to the first screw rod;

[0008] Two first sliding blocks are arranged below the first sliding seat, the first sliding blocks are slidably matched with the first sliding rails, a first sliding sleeve is slidably sleeved on the first screw rod, and the first sliding sleeve is fixedly connected to the first sliding seat.

[0009] A second slide rail parallel to the first slide rail is provided on the second mounting plate, a second slider is provided below the second slide seat, the second slider slides in sliding cooperation with the second slide rail, a second mounting plate is connected above the first slide seat and the second slide seat, and the second mounting plate is used to install the X-axis displacement mechanism.

[0010] Furthermore, one end of the first screw rod passes through the first fixing seat and is connected to the second synchronous gear, the output end of the first motor is connected to the first synchronous gear, and the first synchronous gear and the second synchronous gear are connected through a synchronous belt.

[0011] Further, the X-axis displacement mechanism includes two third slide rails, a second screw rod, a third slide seat, and a second motor. The two third slide rails are arranged in parallel on the third mounting plate. The second screw rod is located between the two third slide rails. Both ends of the second screw rod are rotatably connected to the third fixed seat and the fourth fixed seat through bearings. The third fixed seat and the fourth fixed seat are respectively located at both ends of the second mounting plate. The second motor is installed on the third fixed seat, and its output end is connected to one end of the second screw rod. The second screw rod is slidably sleeved with a second sleeve.

[0012] Photoelectric sensors are provided at both ends of the third slide rail, and the photoelectric sensors are used to sense the third slide seat and send signals to control the operation of the second motor;

[0013] Two third sliding blocks are arranged below the third slide seat, the third sliding blocks are slidably matched with the third slide rail, the third slide seat is fixedly connected with the second slide sleeve, and a fourth mounting plate is arranged above the third slide seat, and the fourth mounting plate is used to install the Z-direction displacement mechanism.

[0014] Furthermore, the Z-axis displacement mechanism includes a cylinder, a fifth fixed seat, a sixth fixed seat, and a fourth slide seat. The fifth fixed seat is located at the upper end of the fourth mounting plate, the sixth fixed seat is located at the lower end of the fourth mounting plate, two parallel sliding rods are provided between the fifth fixed seat and the sixth fixed seat, the fourth slide seat is slidably connected to the two sliding rods, the cylinder is installed on the fifth fixed seat, and its floating joint is connected to the fourth slide seat. The fourth slide seat is provided with a mounting seat, and a glue gun is installed on the mounting seat.

[0015] Furthermore, a cleaning assembly is provided on the inner side of the first mounting plate or the second mounting plate, and the cleaning assembly includes a fixed plate, a flange is provided on one side of the fixed plate, and the flange is fixedly connected to the first mounting plate or the second mounting plate by bolts. At least one through hole is provided on the surface of the fixed plate, and a cleaning bucket is passed through the through hole. A rib extending outward and arranged along the circumference of the cleaning bucket is provided at the barrel mouth of the cleaning bucket, and the lower end face of the rib is connected to the end face near the opening of the through hole of the fixed plate.

[0016] Furthermore, protective covers are provided outside the X-axis displacement mechanism and the Y-axis displacement mechanism.

[0017] Further, the second displacement mechanism includes a first support, a second support, an adjustment mechanism, and a conveying mechanism, the conveying mechanism includes two pulley mechanisms, the two pulley mechanisms are respectively installed on the first support and the second support, the first support and the second support are relatively parallel, and the pulley mechanism includes a first pulley, a second pulley, a transmission belt, and a third motor;

[0018] A sensor is provided on the first support or the second support, and the sensor is used to identify an optical point in the PCB;

[0019] The first belt pulley and the second belt pulley are connected via a transmission belt, and the third motor is used to drive the first belt pulley and the second belt pulley to rotate;

[0020] The adjusting mechanism comprises a first adjusting mechanism and a second adjusting mechanism of the same structure, the first adjusting mechanism comprises a seventh fixed seat, an eighth fixed seat, a fifth slide seat, an adjusting screw, a fourth slide rail, and a fourth slider, the seventh fixed seat is connected to the first support, the fifth slide seat is connected to the second support, the adjusting screw is slidably arranged in the fifth slide seat through a screw sleeve, the two ends of the adjusting screw are respectively connected to the seventh fixed seat and the eighth fixed seat, one end of the adjusting screw is provided with a rotating handle, the fourth slider is installed below the fifth slide seat, the fourth slider is slidably matched with the fourth slide rail, and the fourth slide rail is installed on the bottom plate;

[0021] One end of the adjusting screw of the first adjusting mechanism and the second adjusting mechanism is respectively provided with a synchronous sprocket, and the two synchronous sprockets are connected by a synchronous chain.

[0022] Furthermore, the third motor is located below the first pulley and the second pulley, the output end of the third motor passes through the cleaning box and is connected to the third pulley, the cleaning box is a coverless structure, the two ends of the transmission belt are respectively connected to the first pulley and the second pulley, and the middle section passes through the third pulley and is placed in the cleaning box.

[0023] Furthermore, the turning device includes a frame, a turning mechanism, a third adjusting mechanism and a conveying mechanism, the turning mechanism is mounted on the frame, the adjusting mechanism is fixedly mounted on the turning mechanism, and the conveying mechanism is mounted on the adjusting mechanism;

[0024] The flip mechanism includes a flip motor, a flip synchronous belt, a flip wheel and a flip member, the output end of the flip motor is connected to one end of the flip synchronous belt, the other end of the flip synchronous belt is sleeved on the flip wheel, the flip wheel is fixedly connected to the flip member, and the flip member is fixedly installed on the frame;

[0025] The adjustment mechanism includes a first connecting plate, a second connecting plate, a width adjustment shaft and a movable plate, and a guide assembly. The first connecting plate and the second connecting plate are respectively fixedly mounted on the flip member, and both ends of the width adjustment shaft are respectively fixedly connected to the first connecting plate and the second connecting plate. The movable plate is slidably sleeved on the width adjustment shaft. The guide assembly includes a guide rod and a guide slider. Both ends of the guide rod are respectively fixedly connected to the first connecting plate and the second connecting plate. The guide slider is fixedly sleeved on the guide rod and fixedly connected to the movable plate.

[0026] The transmission mechanism includes a transmission motor, a synchronous belt, a transmission shaft, and a feeding assembly. The output end of the transmission motor is connected to the synchronous belt, the synchronous belt is sleeved on the transmission shaft, and the feeding assembly is slidably connected to the transmission shaft.

[0027] The feeding assembly includes a first feeding assembly and a second feeding assembly, both of which have a mounting plate and a transmission wheel fixedly mounted on the mounting plate, a first transmission belt, a first driving wheel, a first driven wheel, a second driving wheel, a second driven wheel, a second transmission belt and a transmission plate, the transmission wheel is slidably sleeved on the transmission shaft, the first transmission belt is sleeved on the transmission wheel and the first driving wheel, the first driving wheel is fixedly connected to the first driven wheel, the first driven wheel is meshed with the second driving wheel, the second driving wheel is fixedly connected to the second driven wheel, and the second transmission belt is sleeved on the second driven wheel;

[0028] A plurality of conveying channels are dug on the conveying plate, the number of conveying channels is two, a stopper block is fixedly installed at the end of the conveying channel, and a soft buffer layer is provided on the surface of the stopper block;

[0029] A movable bearing and a screw connection block are arranged at the connection between the width adjustment shaft and the movable plate. The movable bearing is fixedly sleeved on the screw connection block, and the screw connection block is screwed to the width adjustment shaft.

[0030] Beneficial effects: Compared with the prior art, the present invention has the following advantages:

[0031] Through the three-axis linkage of the X-axis displacement mechanism, the Y-axis displacement mechanism and the Z-axis displacement mechanism, the movement position of the glue gun can be accurately controlled to ensure the accuracy and consistency of glue dispensing. This high-precision glue dispensing is essential to ensure the quality and performance of PCBs.

[0032] The device is equipped with a flipping device that can turn the PCB over for double-sided gluing, which improves production efficiency, reduces manual intervention, and reduces production costs.

[0033] The adjustment mechanism in the second displacement mechanism allows flexible adjustment according to the size of the PCB, ensuring that the PCB remains stable during transportation, further improving the accuracy of dispensing.

[0034] The entire device is driven by motors, cylinders and other automated components to achieve automatic transportation, positioning and dispensing of PCBs, greatly reducing manual operations and improving production efficiency and safety.

[0035] The device is reasonably designed, compact and easy to clean and maintain. For example, the Y-axis displacement mechanism and the X-axis displacement mechanism are equipped with protective covers to prevent dust and debris from entering and extend the service life of the equipment. At the same time, the setting of the cleaning component also facilitates the daily cleaning of the equipment.

[0036] The device is equipped with control elements such as a control panel, reset button and alarm indicator light, as well as detection elements such as photoelectric sensors and inductors, which can monitor the equipment status and PCB position in real time to achieve intelligent control.

[0037] The innovative design in the cleaning components and flipping device not only improves the practicality and flexibility of the equipment, but also further enhances the overall performance and user experience of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 is a schematic diagram of the flipping device;

[0039] Figure 2 It is a structural schematic diagram of the flipping mechanism;

[0040] Figure 3 is a schematic diagram of the third adjustment mechanism;

[0041] Figure 4 is a schematic diagram of the transmission mechanism;

[0042] Figure 5 is a schematic diagram of the combined structure of the transmission plate and the stop block;

[0043] Figure 6 It is an external schematic diagram of a double-sided glue dispensing device for PCB;

[0044] Figure 7 It is an internal schematic diagram of a double-sided glue dispensing device for PCB;

[0045] Figure 8 is a schematic diagram of the second displacement mechanism and the flipping device;

[0046] Fig. 9 This is a schematic diagram of the first displacement mechanism.

[0047] Fig.10 It is a schematic diagram of the Y-direction displacement mechanism;

[0048] Fig.11 It is a schematic diagram of the X-direction displacement mechanism;

[0049] Fig.12 It is the main view of the Z-direction displacement mechanism;

[0050] Fig.13 It is a side view of the Z-direction displacement mechanism;

[0051] Fig.14 is a schematic diagram of the second displacement mechanism;

[0052] Fig.15 Schematic diagram of the first displacement mechanism with a protective cover. DETAILED DESCRIPTION

[0053] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with embodiments and drawings. The embodiments are only used to explain the present invention and do not constitute a limitation on the protection scope of the present invention.

[0054] like Figure 1-14 As shown, the frame 1, the flip mechanism 2, the flip motor 21, the flip synchronous belt 22, the flip wheel 23, the flip member 24, the third adjustment mechanism 3, the first connecting plate 31, the second connecting plate 32, the width adjustment shaft 33, the movable bearing 331, the screw block 332, the movable plate 34, the guide assembly 35, the guide rod 351, the guide slider 352, the transmission mechanism 4, the transmission motor 41, the synchronous belt 42, the transmission shaft 43, the feeding assembly 44, the first feeding assembly 5, the mounting plate 51, the transmission wheel 52, first transmission belt 53, first driving wheel 54, first driven wheel 55, second driving wheel 56, second driven wheel 57, second transmission belt 58, transmission plate 59, transmission channel 591, second feeding assembly 6, stop block 7, soft buffer layer 71, frame 8, sealing plate 9, alarm indicator light 10, control panel 11, reset button 12, door panel 13, first displacement mechanism 14, second displacement mechanism 15, flip device 16, bottom plate 17, X-axis displacement mechanism 18, Y-axis displacement mechanism Structure 19, Z-axis displacement mechanism 20, cleaning assembly 21, glue gun 22, column 23, first mounting plate 24, second mounting plate 25, first slide rail 26, first screw rod 27, first motor 28, first synchronous gear 29, second synchronous gear 30, second slide rail 31, second slider 32, second slide seat 33, third mounting plate 34, third slide rail 35, second screw rod 36, second motor 37, first fixed seat 38, second fixed seat 39, first slide seat 40, first slide block 41, A first sliding sleeve 42, a third sliding seat 43, a second sliding sleeve 44, a third fixed seat 45, a fourth fixed seat 46, a fifth fixed seat 47, a sliding rod 48, a fourth sliding seat 49, a mounting seat 50, a sixth fixed seat 51, a first support 52, a second support 53, a first pulley 54, a second pulley 55, a third motor 56, a seventh fixed seat 57, an eighth fixed seat 58, an adjusting screw 59, a fourth sliding block 60, a fifth sliding seat 61, a cleaning box 62, a synchronous sprocket 63, and a rotating handle 64;

[0055] A double-sided glue dispensing device for PCB, comprising a control box, wherein two glue dispensing mechanisms and a flipping device 16 are arranged in the control box, wherein the glue dispensing mechanisms and the flipping device 16 are both mounted on a bottom plate 17, wherein the two glue dispensing mechanisms are respectively located on both sides of the flipping device 16, wherein the glue dispensing mechanisms comprise a glue gun 22, a first displacement mechanism 14, and a second displacement mechanism 15, wherein the first displacement mechanism 14 is used to control the movement of the glue gun 22, wherein the first displacement mechanism 14 comprises an X-direction displacement mechanism 18, a Y-direction displacement mechanism 19, and a Z-direction displacement mechanism 20, wherein the second displacement mechanism 15 is used to control the movement of the PCB, and the flipping device 16 is used to flip the PCB;

[0056] The control box includes a frame 8 of a rectangular structure, and its upper end face, lower end face, side face and rear end face are all provided with sealing plates 9. The lower section of the front end face is provided with a sealing plate 9, and the upper section is provided with a door panel 13. The door panel 13 is provided with a control panel 11 and a reset button 12, and an alarm indicator light is provided on the sealing plate 9 located on the upper end face.

[0057] Working principle: The slot glue gun is moved to the predetermined position through the first displacement mechanism for dispensing. After completion, it is transmitted to the flipping device through the second displacement mechanism to turn the PCB over, and then sent to the dispensing mechanism on the other side for dispensing on the other side of the PCB.

[0058] In this embodiment, the Y-axis displacement mechanism 19 includes a first mounting plate 24, a second mounting plate 25, a first slide 40, and a second slide 33. The two ends of the bottom surfaces of the first mounting plate 24 and the second mounting plate 25 are respectively connected to one end of a column 23, and the other end of the column 23 is fixed to the bottom plate 17.

[0059] Two parallel first slide rails 26 are provided on the first mounting plate 24, a first screw rod 27 is provided between the two slide rails, two ends of the first screw rod 27 are rotatably connected to a first fixing seat 38 and a second fixing seat 39 through bearings, the first fixing seat 38 is located at the front end of the first mounting plate 24, the second fixing seat 39 is located at the rear end of the first mounting plate 24, a first motor 28 is provided on the first fixing seat 38, and an output end of the first motor 28 is connected to the first screw rod 27;

[0060] Two first slide blocks 41 are provided below the first slide seat 40. The first slide blocks 41 are slidably matched with the first slide rail 26. A first slide sleeve 42 is slidably sleeved on the first screw rod 27. The first slide sleeve 42 is fixedly connected to the first slide seat 40.

[0061] A second slide rail 31 parallel to the first slide rail 26 is provided on the second mounting plate 25, a second slider 32 is provided below the second slide seat 33, the second slider 32 slides in cooperation with the second slide rail 31, and a second mounting plate 25 is connected above the first slide seat 40 and the second slide seat 33, and the second mounting plate 25 is used to install the X-axis displacement mechanism 18.

[0062] In this embodiment, one end of the first screw rod 27 passes through the first fixing seat 38 and is connected to the second synchronous gear 30. The output end of the first motor 28 is connected to the first synchronous gear 29. The first synchronous gear 29 and the second synchronous gear 30 are connected through a synchronous belt.

[0063] In this embodiment, the X-axis displacement mechanism 18 includes two third slide rails 35, a second screw rod 36, a third slide seat 4349, and a second motor 37. The two third slide rails 35 are arranged in parallel on the third mounting plate 34. The second screw rod 36 is located between the two third slide rails 35. The two ends of the second screw rod 36 are rotatably connected to the third fixed seat 45 and the fourth fixed seat 46 through bearings. The third fixed seat 45 and the fourth fixed seat 46 are respectively located at the two ends of the second mounting plate 25. The second motor 37 is installed on the third fixed seat 45, and its output end is connected to one end of the second screw rod 36. The second screw rod 36 is slidably sleeved with a second sleeve 44.

[0064] Photoelectric sensors are provided at both ends of the third slide rail 35, and the photoelectric sensors are used to sense the third slide seat 4349 and send signals to control the operation of the second motor 37;

[0065] Two third sliding blocks are provided below the third slide seat 4349, and the third sliding blocks are slidably matched with the third slide rail 35. The third slide seat 4349 is fixedly connected to the second slide sleeve 44. A fourth mounting plate is provided above the third slide seat 4349, and the fourth mounting plate is used to install the Z-direction displacement mechanism 20.

[0066] In this embodiment, the Z-axis displacement mechanism 20 includes a cylinder, a fifth fixed seat 47, a sixth fixed seat 51, and a fourth slide 49. The fifth fixed seat 47 is located at the upper end of the fourth mounting plate, the sixth fixed seat 51 is located at the lower end of the fourth mounting plate, two parallel slide bars 48 are provided between the fifth fixed seat 47 and the sixth fixed seat 51, and the fourth slide 49 is slidably connected to the two slide bars 48. The cylinder is installed on the fifth fixed seat 47, and its floating joint is connected to the fourth slide 49. The fourth slide 49 is provided with a mounting seat 50, and a glue gun 22 is installed on the mounting seat 50.

[0067] In this embodiment, a cleaning assembly 21 is provided on the inner side of the first mounting plate 24 or the second mounting plate 25. The cleaning assembly 21 includes a fixed plate, a flange is provided on one side of the fixed plate, and the flange is fixedly connected to the first mounting plate 24 or the second mounting plate 25 by bolts. At least one through hole is provided on the surface of the fixed plate, and a cleaning bucket is passed through the through hole. A rib extending outward and arranged along the circumference of the cleaning bucket is provided at the barrel mouth of the cleaning bucket, and the lower end face of the rib is connected to the end face near the opening of the through hole of the fixed plate.

[0068] In this embodiment, protective covers are disposed outside the X-axis displacement mechanism 18 and the Y-axis displacement mechanism 19 .

[0069] In this embodiment, the second displacement mechanism 15 includes a first support 52, a second support 53, an adjustment mechanism, and a conveying mechanism. The conveying mechanism includes two pulley mechanisms, which are respectively installed on the first support 52 and the second support 53. The first support 52 and the second support 53 are relatively parallel. The pulley mechanism includes a first pulley 54, a second pulley 55, a transmission belt, and a third motor 56.

[0070] A sensor is provided on the first support 52 or the second support 53, and the sensor is used to identify an optical point in the PCB;

[0071] The first pulley 54 and the second pulley 55 are connected by a transmission belt, and the third motor 56 is used to drive the first pulley 54 and the second pulley 55 to rotate;

[0072] It should be noted that

[0073] The adjustment mechanism includes a first adjustment mechanism and a second adjustment mechanism with the same structure. The first adjustment mechanism includes a seventh fixed seat 57, an eighth fixed seat 58, a fifth slide seat 61, an adjustment screw 59, a fourth slide rail, and a fourth slider 60. The seventh fixed seat 57 is connected to the first support 52, the fifth slide seat 61 is connected to the second support 53, the adjustment screw 59 is slidably arranged in the fifth slide seat 61 through a screw sleeve, and both ends of the adjustment screw 59 are respectively connected to the seventh fixed seat 57 and the eighth fixed seat 58. One end of the adjustment screw 59 is provided with a rotating handle 64. The fourth slider 60 is installed below the fifth slide seat 61. The fourth slider 60 is slidably matched with the fourth slide rail, and the fourth slide rail is installed on the bottom plate 17.

[0074] One end of the adjusting screw 59 of the first adjusting mechanism and the second adjusting mechanism are respectively provided with a synchronous sprocket 63, and the two synchronous sprockets 63 are connected by a synchronous chain.

[0075] In this embodiment, the third motor 56 is located below between the first pulley 54 and the second pulley 55. The output end of the third motor 56 passes through the cleaning box 62 and is connected to the third pulley. The cleaning box 62 is a coverless structure. The two ends of the transmission belt are respectively connected to the first pulley 54 and the second pulley 55, and the middle section passes through the third pulley and is placed in the cleaning box 62.

[0076] The flipping device includes a frame 1, a flipping mechanism 2, an adjusting mechanism 3 and a conveying mechanism 4. The flipping mechanism 2 is installed on the frame 1, the adjusting mechanism 3 is fixedly installed on the flipping mechanism 2, and the conveying mechanism 4 is installed on the adjusting mechanism 3. The flipping mechanism 2 includes a flipping motor 21, a flipping synchronous belt 22, a flipping wheel 23 and a flipping member 24. The output end of the flipping motor 21 is connected to one end of the flipping synchronous belt 22, and the other end of the flipping synchronous belt 22 is sleeved on the flipping wheel 23. The flipping wheel 23 is fixedly connected to the flipping member 24. The flipping member 24 is fixedly installed on the frame. The flipping member 24 can play a fixing role and is also a flipping member when flipping. Flip shaft; the adjusting mechanism 3 includes a first connecting plate 31, a second connecting plate 32, a width adjusting shaft 33 and a moving plate 34, the first connecting plate 31 and the second connecting plate 32 are respectively fixedly mounted on the flip member 24, the two ends of the width adjusting shaft 33 are respectively fixedly connected to the first connecting plate 31 and the second connecting plate 32, and the moving plate 34 is slidably sleeved on the width adjusting shaft 33; the conveying mechanism 4 includes a conveying motor 41, a synchronous belt 42, a transmission shaft 43, and a feeding assembly 44, the output end of the conveying motor 41 is connected to the synchronous belt 42, the synchronous belt 42 is sleeved on the transmission shaft 43, and the feeding assembly 66 is slidably connected to the transmission shaft 43. By providing a plurality of conveying channels 591 on the conveying plate 59, the present invention enables the conveying mechanism 4 to simultaneously convey a plurality of PCB boards, and further enables the flipping mechanism 2 to flip a plurality of PCB boards on the conveying mechanism 4 at the same time, thereby improving production efficiency; by fixing a stop block 7 at the end of the conveying channel 591, the PCB will not fall off the conveying channel 591 when flipping, and the flipping is stable; at the same time, by providing the adjusting mechanism 3, the corresponding track width can be adjusted according to the size of the PCB board, thereby realizing the flipping of PCB boards of different sizes, with high flipping efficiency, saving manpower, and improving production efficiency.

[0077] Reference Figure 4The feeding assembly 44 includes a first feeding assembly 5 and a second feeding assembly 6. The first feeding assembly 5 and the second feeding assembly 5 both have a mounting plate 51 and a transmission wheel 52 fixedly mounted on the mounting plate 51, a first transmission belt 53, a first driving wheel 54, a first driven wheel 55, a second driving wheel 56, a second driven wheel 57, a second transmission belt 58 and a transmission plate 59. The transmission wheel 52 is slidably sleeved on the transmission shaft 43, the first transmission belt 53 is sleeved on the transmission wheel 52 and the first driving wheel 54, the first driving wheel 54 is fixedly connected to the first driven wheel 55, and the first driven wheel 55 is fixedly connected to the second driving wheel 56. The wheels 56 are meshed, the second driving wheel 56 is fixedly connected with the second driven wheel 57, and the second transmission belt 58 is sleeved on the second driven wheel 57. When feeding, the PCB is placed in the transmission channel 591, and the transmission motor 41 drives to rotate, driving the synchronous belt 42, the synchronous belt 42 drives the transmission shaft 43 to rotate, and the transmission shaft 43 drives the transmission wheel 52 to rotate, and then drives the first driving wheel 54 to rotate through the first transmission belt 53, so that the second transmission belt 58 is rotated through the first driven wheel 55, the second driving wheel 56 and the second driven wheel 57, and under the action of friction, the PCB board is transmitted.

[0078] Reference Figure 5 A plurality of conveying channels 591 are formed on the conveying plate 59, and the conveying channels 591 are used to convey the PCB boards.

[0079] Reference Figure 5 There are two transmission channels 591, which can transmit two PCB boards at the same time.

[0080] Reference Figure 5 A stop block 7 is fixedly installed at the end of the conveying channel 591. When the PCB board is transmitted from one end of the conveying channel 591 to the other end, the stop block 7 will block the PCB board, and then when flipping, the PCB board will not be thrown out of the conveying channel 591 due to flipping. This design makes the flipping stable.

[0081] The surface of the stopper block 7 is provided with a soft buffer layer 71, which is used for PCB

[0082] When the plate and the stop block 7 are in contact, the PCB board is protected to prevent the PCB board from being damaged. In this embodiment, the soft buffer layer 71 is a stretch fabric of spandex.

[0083] Reference Figure 3A movable bearing 331 and a screw block 332 are provided at the connection between the width adjustment shaft 33 and the movable plate 34. The movable bearing 331 is fixedly sleeved on the screw block 332. The screw block 332 is screwed to the width adjustment shaft 33. When adjusting the distance between the first feeding component 5 and the second feeding component 6, when adjusting the relative position of the screw block 332 on the width adjustment shaft 33, the screw block 332 will drive the movable plate through the movable bearing 331, thereby realizing the interval between the first feeding component 5 and the second feeding component 6, so that PCB boards of different sizes can be transported.

[0084] Reference Figure 3 The adjustment mechanism 3 also includes a guide assembly 35, which includes a guide rod 351 and a guide slider 352. The two ends of the guide rod 351 are respectively fixedly connected to the first connecting plate 31 and the second connecting plate 32. The guide slider 352 is fixedly sleeved on the guide rod 351 and fixedly connected to the movable plate 34. When adjusting the interval between the first feeding assembly 5 and the second feeding assembly 6, the guide assembly 35 plays a guiding role to ensure that the movable plate 34 can move linearly along the guide rod 351, and ensure that the first feeding assembly 5 and the second feeding assembly 6 can face each other, so that the PCB board can be normally transmitted.

[0085] The principle of the flipping device is as follows: first, the PCB board is placed on the two conveying channels 591, the conveying motor 41 rotates, and the transmission shaft is driven by the synchronous belt 42, and then the first feeding assembly 5 and the second feeding assembly 6 are driven, so that the first transmission belt 53 and the second transmission belt 58 convey the PCB board to the end of the conveying channel 591 until the PCB board contacts the gear portion 7. At this time, the conveying motor 41 stops rotating, and then the flipping motor 21 rotates, and the flipping synchronous belt 22 drives the flipping wheel 23 to rotate. Driven by the flipping wheel 23, the flipping member 24 drives the adjusting mechanism 3 to flip, and the adjusting mechanism 3 drives the conveying assembly 44, thereby realizing the flipping of the PCB board.

[0086] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A double-sided glue dispensing device for PCB, characterized in that: It includes a control box, in which two dispensing mechanisms and a flipping device are arranged, the dispensing mechanism and the flipping device are both installed on the bottom plate, the two dispensing mechanisms are respectively located on both sides of the flipping device, the dispensing mechanism includes a glue gun, a first displacement mechanism, and a second displacement mechanism, the first displacement mechanism is used to control the movement of the glue gun, the first displacement mechanism includes an X-direction displacement mechanism, a Y-direction displacement mechanism, and a Z-direction displacement mechanism, the second displacement mechanism is used to control the movement of the PCB, and the flipping device is used to flip the PCB; The control box includes a rectangular structure frame, whose upper end face, lower end face, side face and rear end face are all provided with sealing plates, the lower section of the front end face is provided with a sealing plate, the upper section is provided with a door panel, the door panel is provided with a control panel and a reset button, and the sealing plate on the upper end face is provided with an alarm indicator light.

2. A double-sided glue dispensing device for PCB according to claim 1, characterized in that: The Y-axis displacement mechanism comprises a first mounting plate, a second mounting plate, a first slide seat, and a second slide seat, wherein the two ends of the bottom surfaces of the first mounting plate and the second mounting plate are respectively connected to one end of a column, and the other end of the column is fixed to the bottom plate; The first mounting plate is provided with two parallel first slide rails, a first screw rod is provided between the two slide rails, two ends of the first screw rod are rotatably connected to the first fixing seat and the second fixing seat through bearings respectively, the first fixing seat is located at the front end of the first mounting plate, the second fixing seat is located at the rear end of the first mounting plate, a first motor is provided on the first fixing seat, and an output end of the first motor is connected to the first screw rod; Two first sliding blocks are arranged below the first sliding seat, the first sliding blocks are slidably matched with the first sliding rails, a first sliding sleeve is slidably sleeved on the first screw rod, and the first sliding sleeve is fixedly connected to the first sliding seat. The second mounting plate is provided with a second slide rail parallel to the first slide rail, a second slider is provided below the second slide seat, the second slider slides in sliding cooperation with the second slide rail, a second mounting plate is connected above the first slide seat and the second slide seat, and the second mounting plate is used to install the X-axis displacement mechanism.

3. A double-sided glue dispensing device for PCB according to claim 2, characterized in that: One end of the first screw rod passes through the first fixing seat and is connected to the second synchronous gear, the output end of the first motor is connected to the first synchronous gear, and the first synchronous gear and the second synchronous gear are connected through a synchronous belt.

4. A double-sided glue dispensing device for PCB according to claim 2, characterized in that: The X-axis displacement mechanism comprises two third slide rails, a second screw rod, a third slide seat, and a second motor. The two third slide rails are arranged in parallel on the third mounting plate. The second screw rod is located between the two third slide rails. The two ends of the second screw rod are rotatably connected to the third fixed seat and the fourth fixed seat through bearings respectively. The third fixed seat and the fourth fixed seat are respectively located at the two ends of the second mounting plate. The second motor is installed on the third fixed seat, and its output end is connected to one end of the second screw rod. The second screw rod is slidably sleeved with a second sleeve. Photoelectric sensors are provided at both ends of the third slide rail, and the photoelectric sensors are used to sense the third slide seat and send signals to control the operation of the second motor; Two third sliding blocks are provided below the third slide seat, the third sliding blocks are slidably matched with the third slide rail, the third slide seat is fixedly connected to the second slide sleeve, and a fourth mounting plate is provided above the third slide seat, and the fourth mounting plate is used to install the Z-direction displacement mechanism.

5. A double-sided glue dispensing device for PCB according to claim 4, characterized in that: The Z-axis displacement mechanism includes a cylinder, a fifth fixed seat, a sixth fixed seat, and a fourth slide seat. The fifth fixed seat is located at the upper end of the fourth mounting plate, the sixth fixed seat is located at the lower end of the fourth mounting plate, two parallel sliding rods are provided between the fifth fixed seat and the sixth fixed seat, the fourth slide seat is slidably connected to the two sliding rods, the cylinder is installed on the fifth fixed seat, and its floating joint is connected to the fourth slide seat. The fourth slide seat is provided with a mounting seat, and a glue gun is installed on the mounting seat.

6. A double-sided glue dispensing device for PCB according to claim 2, characterized in that: A cleaning assembly is provided on the inner side of the first mounting plate or the second mounting plate, and the cleaning assembly includes a fixed plate, a flange is provided on one side of the fixed plate, and the flange is fixedly connected to the first mounting plate or the second mounting plate by bolts, at least one through hole is provided on the surface of the fixed plate, a cleaning bucket is passed through the through hole, and a rib extending outward and arranged along the circumference of the cleaning bucket is provided at the barrel mouth of the cleaning bucket, and the lower end surface of the rib is connected to the end surface near the opening of the through hole of the fixed plate.

7. A double-sided glue dispensing device for PCB according to any one of claims 1 to 5, characterized in that: The X-direction displacement mechanism and the Y-direction displacement mechanism are both provided with protective covers outside.

8. The double-sided glue dispensing device for PCB according to claim 1, characterized in that: The second displacement mechanism includes a first support, a second support, an adjustment mechanism, and a conveying mechanism. The conveying mechanism includes two pulley mechanisms, which are respectively installed on the first support and the second support. The first support and the second support are arranged relatively parallel. The pulley mechanism includes a first pulley, a second pulley, a transmission belt, and a third motor. A sensor is provided on the first support or the second support, and the sensor is used to identify an optical point in the PCB; The first belt pulley and the second belt pulley are connected via a transmission belt, and the third motor is used to drive the first belt pulley and the second belt pulley to rotate; The adjustment mechanism comprises a first adjustment mechanism and a second adjustment mechanism of the same structure, the first adjustment mechanism comprises a seventh fixed seat, an eighth fixed seat, a fifth slide seat, an adjustment screw, a fourth slide rail, and a fourth slider, the seventh fixed seat is connected to the first support, the fifth slide seat is connected to the second support, the adjustment screw is slidably inserted into the fifth slide seat through a screw sleeve, the two ends of the adjustment screw are respectively connected to the seventh fixed seat and the eighth fixed seat, one end of the adjustment screw is provided with a rotating handle, the fourth slider is installed below the fifth slide seat, the fourth slider is slidably matched with the fourth slide rail, and the fourth slide rail is installed on the bottom plate; One end of the adjusting screw of the first adjusting mechanism and the second adjusting mechanism is respectively provided with a synchronous sprocket, and the two synchronous sprockets are connected by a synchronous chain.

9. A double-sided glue dispensing device for PCB according to claim 8, characterized in that: The third motor is located below between the first pulley and the second pulley. The output end of the third motor passes through the cleaning box and is connected to the third pulley. The cleaning box is a coverless structure. Both ends of the transmission belt are respectively connected to the first pulley and the second pulley. The middle section passes through the third pulley and is placed in the cleaning box.

10. A double-sided glue dispensing device for PCB according to claim 1, characterized in that: The flipping device comprises a frame, a flipping mechanism, a third adjusting mechanism and a conveying mechanism, wherein the flipping mechanism is mounted on the frame, the adjusting mechanism is fixedly mounted on the flipping mechanism, and the conveying mechanism is mounted on the adjusting mechanism; The flip mechanism includes a flip motor, a flip synchronous belt, a flip wheel and a flip member, the output end of the flip motor is connected to one end of the flip synchronous belt, the other end of the flip synchronous belt is sleeved on the flip wheel, the flip wheel is fixedly connected to the flip member, and the flip member is fixedly installed on the frame; The third adjustment mechanism includes a first connecting plate, a second connecting plate, a width adjustment shaft and a movable plate, and a guide assembly. The first connecting plate and the second connecting plate are respectively fixedly mounted on the flip member, and both ends of the width adjustment shaft are respectively fixedly connected to the first connecting plate and the second connecting plate. The movable plate is slidably sleeved on the width adjustment shaft. The guide assembly includes a guide rod and a guide slider. Both ends of the guide rod are respectively fixedly connected to the first connecting plate and the second connecting plate. The guide slider is fixedly sleeved on the guide rod and fixedly connected to the movable plate. The transmission mechanism includes a transmission motor, a synchronous belt, a transmission shaft, and a feeding assembly. The output end of the transmission motor is connected to the synchronous belt, the synchronous belt is sleeved on the transmission shaft, and the feeding assembly is slidably connected to the transmission shaft. The feeding assembly includes a first feeding assembly and a second feeding assembly, both of which have a mounting plate and a transmission wheel fixedly mounted on the mounting plate, a first transmission belt, a first driving wheel, a first driven wheel, a second driving wheel, a second driven wheel, a second transmission belt and a transmission plate, the transmission wheel is slidably sleeved on the transmission shaft, the first transmission belt is sleeved on the transmission wheel and the first driving wheel, the first driving wheel is fixedly connected to the first driven wheel, the first driven wheel is meshed with the second driving wheel, the second driving wheel is fixedly connected to the second driven wheel, and the second transmission belt is sleeved on the second driven wheel; A plurality of conveying channels are dug on the conveying plate, the number of conveying channels is two, a stopper block is fixedly installed at the end of the conveying channel, and a soft buffer layer is provided on the surface of the stopper block; A movable bearing and a screw connection block are arranged at the connection between the width adjustment shaft and the movable plate. The movable bearing is fixedly sleeved on the screw connection block, and the screw connection block is screwed to the width adjustment shaft.

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