Multi-functional plate unstacker
The design of the multi-functional unloading machine realizes the automated unloading, inspection and classification of circuit boards, solves the heat dissipation and single function problems of existing unloading machines, improves production efficiency and equipment stability, adapts to circuit boards of different sizes, and simplifies waste disposal.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGXI YINGTELI ELECTRONIC TECH CO LTD
- Filing Date
- 2025-07-11
- Publication Date
- 2026-07-21
AI Technical Summary
The existing unloading machine has not effectively solved the heat dissipation problem after long-term operation, and its functions are relatively simple, not involving the automated unloading and inspection of circuit boards.
Design a multi-functional unloading machine, including components such as electric push rods, rodless cylinders, and electric cylinders, to realize automatic unloading, inspection, and classification of circuit boards. Combined with an optical inspection instrument, it performs two appearance inspections. Electric slide rails and waste boxes are designed to handle defective products.
It improved production efficiency, reduced labor intensity, ensured accurate placement and testing of circuit boards, enhanced equipment stability and versatility, and simplified the waste disposal process.
Smart Images

Figure CN224529829U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of unloading equipment technology, and in particular to a multi-functional unloading machine. Background Technology
[0002] In the SMT production process, circuit boards need to go through multiple processes, including solder paste printing, component mounting, reflow soldering, and testing. After each process is completed, the circuit board needs to be removed from the production line for the next process or for packaging.
[0003] Chinese patent CN213662253U discloses a board unloading machine. This patent aims to solve the problem that after prolonged operation, the main control panel inside the chassis of the unloading machine gradually heats up, affecting the normal use of the unloading machine and easily causing component damage due to heat. This patent uses a heat-conducting plate in conjunction with a start-up fan to expel the heat from the heat-conducting plate from the chassis, achieving primary air cooling. The main control panel, connected to the heat-conducting plate, cools down accordingly, realizing the water cooling function of this utility model. This is the secondary cooling of the main control panel, thus solving the problem proposed by the patent.
[0004] However, the aforementioned patents mainly address the heat dissipation problem inside the equipment, without addressing the issue of unloading the circuit board, resulting in a relatively limited function. Therefore, a multi-functional unloading machine has been specially designed. Utility Model Content
[0005] In order to overcome the shortcomings of the existing technology, this utility model provides a multi-functional unloading machine.
[0006] The technical solution of this utility model is as follows: A multi-functional unloading machine includes a base, an electric push rod, a presentation platform, an electric cylinder, a receiving frame, a limiting plate, a screw, a mounting frame, a bearing seat, a rib, a first pulley set, a second pulley set, a motor, a guide rod, a rodless cylinder, an electric cylinder, and a push rod. An electric push rod is installed on one side of the front of the base. A presentation platform is provided on the telescopic end of the electric push rod. Electric cylinders are installed on both sides of the presentation platform, with the drive ends of the two electric cylinders facing each other. A receiving frame with several storage slots is placed on the presentation platform. A limiting plate is slidably provided on one side inside the receiving frame. A mating groove is provided on the opposite side of the limiting plate and the storage slot. A screw is rotatably provided on one side of the receiving frame, with the end of the screw connected to the limiting plate. A mounting frame is provided on the rear side of the upper part of the base. The top of the mounting frame is near... A bearing seat is provided on both sides of the edge. A rib is rotatably installed between the two rear walls of the mounting frame, and the rib also passes through one of the bearing seats. A pulley group one is provided on the upper opposite surface of the two bearing seats. One pulley of each of the two pulley groups one is connected to the two sides of the rib. A pulley group two is also provided on the upper opposite surface of the two bearing seats. The belt of pulley group two is wound around the other pulley of the adjacent pulley group one, and the two cooperate with each other. A motor is installed on the outside of the mounting frame. The output shaft of the motor is connected to the rib. Guide rods are symmetrically arranged between the two front walls of the mounting frame. A rodless cylinder is slidably installed between the two guide rods. An electric cylinder two is installed on the slide of the rodless cylinder. A push rod for pushing the circuit board is installed on the telescopic end of the electric cylinder two.
[0007] Furthermore, it also includes lead screws, with lead screws symmetrically arranged and running through the two front walls of the mounting frame. Both ends of the lead screws are rotatably connected to the inside of the mounting frame, and one end of each lead screw is provided with an adjusting component. The rodless cylinder is rotatably connected to the two lead screws at the bottom.
[0008] Furthermore, the other end of the lead screw passes through a support on one side and is rotatably connected to it.
[0009] Furthermore, it also includes an electric slide rail, which is embedded in the upper rear side of the base. The front part of the mounting base is slidably connected to the electric slide rail, and the right side of the electric slide rail extends outward.
[0010] Furthermore, it also includes optical inspection instruments, with optical inspection instruments installed on both sides of the top of the mounting bracket.
[0011] Furthermore, it also includes a waste box, which is placed on the right side of the front part of the base, and the rear part of the waste box is in front of the extension of the electric slide rail.
[0012] The beneficial effects of this utility model are: 1. This utility model realizes automatic feeding, detection and classification of circuit boards through the coordinated work of multiple components such as electric push rod, rodless cylinder and electric cylinder II, which greatly improves production efficiency and reduces manual intervention and labor intensity.
[0013] 2. This utility model ensures the stable fixation of the receiving frame by using an electric push rod and an electric cylinder, thus improving the stability and reliability of the equipment; and the precise control of the rodless cylinder and the electric cylinder ensures the accurate placement of the circuit board, thus improving the accuracy and consistency of the material feeding.
[0014] 3. Through the design of the screw and the limiting plate, the width and depth of the receiving frame can be easily adjusted to adapt to circuit boards of different sizes and specifications, thus improving the versatility and flexibility of the equipment. The adjustable design of the mounting frame and the support seat enables the equipment to adapt to circuit boards of different widths, thereby enhancing the applicability of the equipment.
[0015] 4. This utility model uses optical inspection instruments installed on both sides of the top to perform two appearance inspections to ensure the quality of the circuit board, promptly detect and handle unqualified products, thereby improving the product qualification rate; and with the design of electric slide rail and waste box, unqualified circuit boards can be quickly separated and collected, simplifying the waste disposal process. Attached Figure Description
[0016] Figure 1 This is an assembly diagram of the present invention.
[0017] Figure 2 This is a structural schematic diagram of the electric push rod, the platform, and the electric cylinder of this utility model.
[0018] Figure 3 This is a structural diagram of the electric slide rail, mounting bracket, and rib rod of this utility model.
[0019] Figure 4 This is a schematic diagram of the structure of the pulley assembly one, pulley assembly two, and motor of this utility model.
[0020] Figure 5 This is a schematic diagram of the rodless cylinder, electric cylinder II, and push rod of this utility model.
[0021] Figure 6 This is a structural diagram of the frame, electric slide rail, and mounting bracket of this utility model.
[0022] Parts and their numbers in the diagram: 1: Base, 2: Electric push rod, 3: Presentation platform, 4: Electric cylinder one, 5: Receiving frame, 6: Limiting plate, 7: Screw, 8: Electric slide rail, 9: Mounting bracket, 91: Bearing seat, 10: Rib rod, 11: Pulley group one, 12: Pulley group two, 13: Motor, 14: Guide rod, 15: Lead screw, 16: Rodless cylinder, 17: Electric cylinder two, 18: Push rod, 19: Optical inspection instrument, 20: Waste box. Detailed Implementation
[0023] The technical solution will be further described below with reference to specific embodiments. It should be noted that the terms "up," "down," "left," and "right" used in this document refer only to the position of the structure shown in the corresponding drawings. The serial numbers assigned to components in this document, such as "first," "second," etc., are only used to distinguish the described objects and have no sequential or technical meaning. Unless otherwise specified, terms such as "connection" and "linkage" in this application include both direct and indirect connections (linkages).
[0024] Example: A multi-functional unloading machine, such as Figures 1-6As shown, the system includes a base 1, an electric push rod 2, a receiving platform 3, an electric cylinder 4, a receiving frame 5, a limiting plate 6, a screw 7, a mounting bracket 9, a bearing seat 91, a rib 10, a pulley set 11, a pulley set 2, a motor 13, a guide rod 14, a rodless cylinder 16, an electric cylinder 2, and a top rod 18. The base 1 serves as the foundation of the entire equipment, fixing all other components and providing stable support and a mounting platform. An electric push rod 2 is installed on one side of the front of the base 1. The extension and retraction of the electric push rod 2 drives the receiving platform 3 to move linearly, allowing the receiving frame 5 on the receiving platform 3 to correspond layer by layer with the descending circuit boards. The receiving platform 3 is located on the extension end of the electric push rod 2, providing a stable platform to ensure the levelness and stability of the receiving frame 5 during the unloading process. Electric cylinders 4 are installed on both sides of the receiving frame 5. The drive ends of the two electric cylinders 4 face each other to ensure that the receiving frame 5 does not shake during the unloading process, thereby improving reliability. The two electric cylinders 4 are used to fix the receiving frame 5. The receiving frame 5, which has several storage slots, is placed on the platform 3. The receiving frame 5 provides an orderly storage space to ensure that the circuit boards are not messed up during the unloading process, which facilitates subsequent processing and packaging. A limit plate 6 is slidably installed on one side inside the receiving frame 5, which provides adjustment for circuit boards of different widths. The limit plate 6 has a mating groove on the opposite side of the storage slot. A screw 7 is rotatably installed on the outside of the receiving frame 5. By rotating the screw 7, the position of the limit plate 6 can be precisely adjusted to ensure that the circuit board is accurately placed in the receiving frame 5. The end of the screw 7 is in contact with the limit plate 6. The mounting plate 6 is connected, and a mounting bracket 9 is provided on the upper rear side of the base 1. The mounting bracket 9 provides an integrated mounting platform to ensure the coordinated operation of each component. Bearing seats 91 are provided on both sides of the top edge of the mounting bracket 9, providing stable support points for the normal operation of pulley group one 11 and pulley group two 12. A rib 10 is rotatably mounted between the two rear walls of the mounting bracket 9. The rotation of the rib 10 drives the operation of pulley group one 11 and pulley group two 12, achieving initial conveying of the circuit board. The rib 10 also passes through one side of the bearing seat 91. Pulley group one 11 is provided on the opposite upper surfaces of the two bearing seats 91. One pulley of each of the two pulley groups one 11 is connected to both sides of the rib 10. The upper part of the two bearing seats 91... On the opposite side, a second set of pulleys 12 is also provided. The belt of the second set of pulleys 12 is wound around another pulley of the adjacent first set of pulleys 11, and the two cooperate with each other. Through the operation of the first set of pulleys 11, the circuit board is transported from the output end of the production line to the second set of pulleys 12, realizing the initial transport. The operation of the second set of pulleys 12 further transports the circuit board to the receiving frame 5, ensuring the accurate placement of the circuit board. A motor 13 is installed on one side of the mounting frame 9. The output shaft of the motor 13 is connected to the rib 10. The motor 13 acts as a drive to realize the rotation of the rib 10, which in turn drives the operation of the first set of pulleys 11 and the second set of pulleys 12. Guide rods 14 are symmetrically arranged through the two front walls of the mounting frame 9 to guide the overall movement of the rodless cylinder 16.A rodless cylinder 16 is slidably mounted between the two guide rods 14. An electric cylinder 17 is mounted on the slide of the rodless cylinder 16. A push rod 18 for actuating the circuit board is mounted on the telescopic end of the electric cylinder 17. The linear movement of the rodless cylinder 16 causes the electric cylinder 17 to approach the rear of the circuit board, ensuring that the push rod 18 can accurately push the circuit board, thus achieving complete placement of the circuit board.
[0025] like Figure 4 As shown, it also includes lead screws 15. Lead screws 15 are symmetrically arranged and pass through the two front walls of the mounting bracket 9. Both ends of the lead screws 15 are rotatably connected to the inside of the mounting bracket 9, and one end of each lead screw 15 is provided with an adjusting component. The rodless cylinder 16 is rotatably connected to the two lead screws 15 at its lower part. The other end of the lead screw 15 passes through the bearing seat 91 on one side and is rotatably connected to it. By rotating the lead screw 15, the position of the rodless cylinder 16 and the two bearing seats 91 can be adjusted to ensure that the rodless cylinder 16 can be accurately aligned with the bottom of the circuit board, thereby improving the accuracy and reliability of subsequent board pushing.
[0026] like Figure 3 and Figure 6 As shown, it also includes an electric slide rail 8. The electric slide rail 8 is embedded in the upper rear side of the base 1 and installed by screws. The front part of the mounting base is slidably connected to the electric slide rail 8, and the right part of the electric slide rail 8 extends outward. By sliding the electric slide rail 8, the mounting frame 9 can be moved to the rear of the waste box 19 to ensure that the unqualified circuit boards can be separated and collected in a timely manner.
[0027] like Figure 1 , Figure 3 , Figure 4 and Figure 6 As shown, it also includes an optical inspection instrument 20, which is installed on both sides of the top of the mounting bracket 9; the quality of the circuit board is ensured through two inspections by the optical inspection instrument 20, and unqualified products are detected and dealt with in a timely manner to improve the product qualification rate.
[0028] like Figure 1 and Figure 3 As shown, it also includes a waste box 19. The waste box 19 is placed on the front right side of the base 1, and the rear of the waste box 19 corresponds to the front of the extension of the electric slide rail 8. By setting the waste box 19, unqualified circuit boards can be separated and collected in time, simplifying the waste handling process and improving production efficiency.
[0029] Before use, ensure that the rear of the mounting bracket 9 corresponds to the output end of the production line. After completion, place the receiving frame 5, which corresponds to the thickness of the circuit board, on the presentation table 3. Activate the two electric cylinders 4, causing their extension ends to abut against both sides of the receiving frame 5, thus fixing the receiving frame 5 in place. Next, rotate the screw 7 to adjust the distance between the limiting plate 6 and the inner wall of the receiving frame 5 to match the width of the circuit board. After adjustment, rotate the screw 7 again to adjust the distance between one support seat 91 and the other support seat 91 to accommodate the width of the circuit board. Simultaneously, the rodless cylinder 16, driven by the lead screw 15, moves along the support seat 91... The circuit board moves along guide rod 14; after completion, motor 13 is pre-started, which drives the rib rod 10 to rotate. When the rib rod 10 rotates, it drives the connected pulley group 11 to operate, and the pulley group 11 drives the pulley group 2 to operate. At this time, the circuit board sent from the output end of the production line is transported onto the belt of the pulley group 2 12 to achieve initial transport. During the transport process, the rear optical inspection instrument 20 performs a visual inspection process. After the front part of the circuit board has completely passed the front optical inspection instrument 20, a second visual inspection process is performed, and the front part of the circuit board... The circuit board is gradually pushed into the storage slot of the receiving frame 5 by the transmission force generated during conveying, but not completely. Then, the rodless cylinder 16 is activated, causing its slide to move linearly, bringing the electric cylinder 17 closer to the rear of the circuit board. As it approaches, the electric cylinder 17 is activated to extend the circuit board. During extension, the front of the push rod 18 contacts the rear of the circuit board, continuing to move the slide of the rodless cylinder 16. The push rod 18 then pushes the rear of the circuit board, completely inserting it into the storage slot of the receiving frame 5, thus completing the unloading and collection process. Simultaneously, after collecting a single circuit board, the electric push rod 2 is activated to extend it. This causes the platform 3 to rise, thus corresponding to the path of the next circuit board. This process is repeated until all the circuit boards in the receiving frame 5 are collected. Then, a new receiving frame 5 is used to collect the unloaded circuit boards. Through the above steps, all the circuit boards are unloaded and collected. In addition, after a second visual inspection, if the inspection finds that the circuit board has quality problems, the electric slide rail 8 drives the mounting frame 9 to slide to the right, so that it corresponds to the rear of the waste frame 19. Under the conveying of the pulley group 2 12, the defective circuit board finally falls into the waste frame 19 in front for subsequent scrapping.
[0030] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. All equivalent substitutions made within the principles of this utility model should be included within the protection scope of this utility model. Contents not described in detail in this utility model are existing technologies known to those skilled in the art.
Claims
1. A multi-functional unloading machine, characterized in that, The machine includes a base (1), an electric push rod (2), a presentation platform (3), an electric cylinder (4), a receiving frame (5), a limiting plate (6), a screw (7), a mounting bracket (9), a bearing seat (91), a rib (10), a pulley group one (11), a pulley group two (12), a motor (13), a guide rod (14), a rodless cylinder (16), an electric cylinder two (17), and a push rod (18). An electric push rod (2) is installed on one side of the front of the base (1). A presentation platform is provided on the telescopic end of the electric push rod (2). 3) Electric cylinders (4) are installed on both sides of the presentation platform (3), with the drive ends of the two electric cylinders (4) facing each other. A receiving frame (5) with several storage slots is placed on the presentation platform (3). A limit plate (6) is slidably installed on one side inside the receiving frame (5). A mating groove is opened on the opposite side of the limit plate (6) and the storage slot. A screw (7) is rotatably installed on one side outside the receiving frame (5). The end of the screw (7) is connected to the limit plate (6). A mounting bracket (9) is installed on the rear side of the upper part of the machine base (1). The top of the mounting bracket (9) is close to the... A bearing seat (91) is provided on both sides of the edge. A rib (10) is provided through and rotatably between the two rear walls of the mounting bracket (9). The rib (10) also passes through one of the bearing seats (91). A pulley group one (11) is provided on the opposite upper surface of the two bearing seats (91). One pulley of each of the two pulley groups one (11) is connected to both sides of the rib (10). A pulley group two (12) is also provided on the opposite upper surface of the two bearing seats (91). The belt of the pulley group two (12) is wound around the adjacent On the other pulley of the pulley group (11), and the two cooperate with each other. A motor (13) is installed on the outside side of the mounting frame (9). The output shaft of the motor (13) is connected to the rib (10). A guide rod (14) is symmetrically arranged between the two front walls of the mounting frame (9). A rodless cylinder (16) is slidably arranged between the two guide rods (14). An electric cylinder (17) is arranged on the slide of the rodless cylinder (16). A push rod (18) for pushing the circuit board is arranged on the telescopic end of the electric cylinder (17).
2. The multi-functional unloading machine as described in claim 1, characterized in that, It also includes lead screws (15), and lead screws (15) are symmetrically arranged between the two front walls of the mounting frame (9). Both ends of the lead screws (15) are rotatably connected to the inside of the mounting frame (9), and one end of each lead screw (15) is provided with an adjusting component. The rodless cylinder (16) is rotatably connected to the two lead screws (15) at the bottom.
3. The multi-functional unloading machine as described in claim 2, characterized in that, The other end of the lead screw (15) passes through the bearing seat (91) on one side and is rotatably connected to it.
4. A multi-functional unloading machine as described in claim 3, characterized in that, It also includes an electric slide rail (8), which is embedded in the upper rear side of the base (1). The front part of the mounting base is slidably connected to the electric slide rail (8), and the right side of the electric slide rail (8) extends outward.
5. A multi-functional unloading machine as described in claim 4, characterized in that, It also includes an optical inspection instrument (20), with optical inspection instruments (20) installed on both sides of the top of the mounting bracket (9).
6. A multi-functional unloading machine as described in claim 5, characterized in that, It also includes a waste box (19), which is placed on the right side of the front part of the base (1), and the rear part of the waste box (19) is in front of the extension of the electric slide rail (8).