A conveying device for processing PCB

Abstract

The application belongs to the field of PCB circuit board processing, and particularly relates to a conveying device for PCB circuit board processing, which comprises a base, a cleaning assembly and a conveying assembly. The conveying assembly is arranged at the two ends of the top of the base and comprises conveying belt bodies arranged at the two ends of the top of the base. End covers are arranged at the upper and lower ends of the conveying belt bodies. Connecting frames are arranged at the two sides of the top end cover of the conveying belt body and the two sides of the bottom end cover of the conveying belt body. The sliding blocks at the bottom of the conveying belt bodies slide along the sliding rails on the base to drive the two conveying belt bodies to adjust the interval, so as to adapt to PCB circuit boards of different width specifications. On the other hand, the interval between the limiting disc and the limiting ring in the pushing assembly can be flexibly adjusted. Through the linkage structure of the push rod, the pressing plate and the spring two, the side edge size of the PCB circuit board of different thickness specifications can be matched, the stable clamping and conveying of the PCB circuit board of different specifications are realized, and the application range of the equipment is expanded.

Description

Technical Field

[0001] This invention belongs to the field of PCB circuit board processing, specifically a conveying device for PCB circuit board processing. Background Technology

[0002] As the core carrier for various electronic components and circuit interconnection, the surface cleanliness of PCB circuit boards directly determines the processing accuracy of subsequent soldering, assembly, and other processes. PCB conveying devices are crucial auxiliary equipment in production, used not only for conveying circuit boards during surface cleaning but also for transferring circuit boards between different processing steps. Therefore, the stability and adaptability of the conveying device, along with surface cleaning operations, constitute an indispensable key link in the electronic manufacturing process, decisively impacting the efficiency and product quality of the entire production chain.

[0003] Existing conveyor belts in most conveying equipment use a fixed spacing design, which cannot be flexibly adjusted according to the width of PCB circuit boards. They can only accommodate circuit boards of a single width. When production needs change to PCB circuit boards of different widths, it is necessary to replace the conveyor components or adjust the overall structure of the equipment. This operation is cumbersome and time-consuming, seriously affecting the continuity of conveying between cleaning steps and processing stages. At the same time, the clamping components used to limit and hold PCB circuit boards on the equipment also have a fixed limiting spacing. They cannot be adaptively adjusted according to the side dimensions of PCB circuit boards of different thicknesses. This can easily lead to problems such as excessive clamping causing damage to the edges of the circuit boards, and excessive clamping causing conveying deviation. This not only affects the cleaning effect, but also has an adverse impact on the transfer of circuit boards during processing, further limiting the versatility of the equipment.

[0004] Therefore, the present invention provides a conveying device for PCB circuit board processing. Summary of the Invention

[0005] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0006] The technical solution adopted by the present invention to solve its technical problem is as follows: The present invention provides a conveying device for PCB circuit board processing, including a base, a cleaning component and a conveying component. The conveying component is provided at both ends of the top of the base. The conveying component includes a conveyor belt body provided at both ends of the top of the base. End caps are provided at both the upper and lower ends of the conveyor belt body. Connecting frames are provided on both sides of the top end cap of the conveyor belt body and on both sides of the bottom end cap of the conveyor belt body. Columns are provided on both sides of the conveyor belt body. The columns are fixedly connected to the connecting frames. A slide rail is provided at the bottom of the column. The slide rail is installed on the base. A slider is slidably provided on the slide rail. The slider is installed at the bottom of the column.

[0007] A pushing component is installed on the outer wall of the conveyor belt body, a PCB circuit board body is installed between the conveying components, a cleaning component is installed at the bottom of the base, and loading and unloading robots are installed at both ends of the top of the base, with vacuum suction cup components installed on the loading and unloading robots.

[0008] Preferably, there are two conveyor belt bodies, which are symmetrical at both ends of the center line at the top of the base.

[0009] Preferably, there are two sets of end caps, with two end caps in each set, and the two end caps are symmetrical at the upper and lower ends of the centerline of the conveyor belt body.

[0010] Preferably, the pushing assembly includes a C-shaped frame disposed on the outer side wall of the conveyor belt body. A spring is disposed inside the C-shaped frame. A movable block is fixed to one end of the spring. A pushing block is disposed at one end of the movable block. A limit plate is fixed to the bottom of the pushing block. The limit plate is fixed to the bottom of the movable block by a connecting block. The top of the pushing block is fixed to the top of the movable block by a connecting block. A limit ring is sleeved on the outside of the pushing block. The limit ring is located above the limit plate. A pressing cover is disposed on the top of the pushing block. A support block is fixed to the outer periphery of the top of the pushing block. The support block is located above the limit ring. A connecting rod runs longitudinally through the inside of the support block. The bottom of the connecting rod is fixedly connected to the top of the limit ring. The top of the connecting rod is fixedly connected to the bottom of the pressing cover. A spring is wound around the outside of the connecting rod.

[0011] Preferably, the inner diameter of the limiting ring matches the outer diameter of the pushing block, and the limiting ring can slide up and down on the outside of the pushing block.

[0012] Preferably, the second spring is located between the support block and the push cover, with one end of the second spring fixedly connected to the bottom of the push cover and the other end of the second spring fixedly connected to the top of the support block.

[0013] Preferably, a pressure plate is provided below the top end cover of the conveyor belt body. The pressure plate is located on top of the push cover. A ball bearing is provided in the middle of the top of the push cover. The top of the ball bearing contacts the bottom of the pressure plate. A push rod is fixed on the top of the pressure plate. The push rod protrudes from the top of the end cover and a support cylinder is provided outside it. The support cylinder is fixed to the top of the end cover. A side block is fixed on the side wall of the support cylinder. A locking rod is threaded inside the side block. One end of the locking rod extends into the interior of the support cylinder and contacts the side wall of the push rod.

[0014] Preferably, the push-press covers are evenly distributed at the bottom of the pressure plate.

[0015] The beneficial effects of this invention are as follows:

[0016] The present invention discloses a conveying device for PCB circuit board processing. By having a slider at the bottom of the conveyor belt body slide along a slide rail on the base, the distance between the two conveyor belt bodies is adjusted to accommodate PCB circuit boards of different widths. On the other hand, the distance between the limiting plate and the limiting ring in the pushing assembly can be flexibly adjusted. Through the linkage structure of the pushing rod, the pressure plate, and the spring, it can match the side dimensions of PCB circuit boards of different thicknesses, realize stable clamping and conveying of PCB circuit boards of different specifications, and expand the applicability of the equipment.

[0017] The pushing component utilizes the elastic restoring force of spring one to drive the pushing block to always be in close contact with the side wall of the PCB circuit board, thereby achieving elastic clamping of the circuit board; at the same time, the limiting plate and the limiting ring contact the bottom and top surfaces of the side of the circuit board respectively, forming an upper and lower limiting structure, which effectively prevents the PCB circuit board from slipping or shifting during transportation and cleaning, ensuring the processing accuracy and transportation safety of the circuit board.

[0018] A ball bearing structure is installed between the push cover and the pressure plate to convert the sliding friction between the push cover and the pressure plate into rolling friction. This effectively reduces the impact of frictional resistance on the movement of the push block, ensures the smoothness of the push block when it moves with the conveyor belt body, reduces component wear, and extends the service life of the equipment. Attached Figure Description

[0019] The invention will now be further described with reference to the accompanying drawings.

[0020] Figure 1 This is an overall structural diagram of the present invention;

[0021] Figure 2 This is a front view of the structure in this invention;

[0022] Figure 3 This is a top view of the structure in this invention;

[0023] Figure 4 This is a side view of the structure in this invention;

[0024] Figure 5 This is a partial structural diagram of the present invention;

[0025] Figure 6 This is a partial structural cross-sectional view of the present invention;

[0026] Figure 7 This is a frontal partial structural sectional view of the present invention;

[0027] Figure 8 It is in this invention Figure 7 Enlarged structural diagram at point A in the middle;

[0028] Figure 9 This is a structural diagram of the pushing component in this invention;

[0029] Figure 10 This is a structural breakdown diagram of the pushing component in this invention;

[0030] Figure 11 This is a partial front view of the pushing component in this invention.

[0031] In the diagram: 1. Base; 2. Cleaning assembly; 3. Conveying assembly; 31. Conveyor belt body; 32. End cap; 33. Column; 34. Connecting frame; 35. Slider; 36. Slide rail; 4. PCB circuit board body; 5. Loading and unloading robot; 6. Vacuum suction cup assembly; 7. C-shaped frame; 71. Spring 1; 72. Movable block; 73. Push block; 74. Limiting plate; 75. Limiting ring; 751. Connecting rod; 752. Spring 2; 76. Support block; 77. Push cover; 78. Ball bearing; 8. Support cylinder; 81. Push rod; 82. Pressure plate; 83. Side block; 84. Locking rod. Detailed Implementation

[0032] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0033] like Figures 1 to 11 As shown, a conveying device for PCB circuit board processing according to an embodiment of the present invention includes a base 1, a cleaning component 2, and a conveying component 3. The conveying component 3 is provided at both ends of the top of the base 1. The conveying component 3 includes a conveyor belt body 31 provided at both ends of the top of the base 1. End caps 32 are provided at both the upper and lower ends of the conveyor belt body 31. Connecting frames 34 are provided on both sides of the top end cap 32 and the bottom end cap 32 of the conveyor belt body 31. Columns 33 are provided on both sides of the conveyor belt body 31. The columns 33 are fixedly connected to the connecting frames 34. A slide rail 36 is provided at the bottom of the column 33. The slide rail 36 is installed on the base 1. A slider 35 is slidably provided on the slide rail 36. The slider 35 is installed at the bottom of the column 33.

[0034] A pushing component is provided on the outer wall of the conveyor belt body 31, a PCB circuit board body 4 is provided between the conveying components 3, a cleaning component 2 is provided at the bottom of the base 1, and loading and unloading robots 5 are installed at both ends of the top of the base 1. Vacuum suction cup components 6 are provided on the loading and unloading robots 5.

[0035] There are two conveyor belt bodies 31, which are symmetrical at both ends of the top center line of the base 1.

[0036] There are two sets of end caps 32, with two end caps 32 in each set. The two end caps 32 are symmetrical at the upper and lower ends of the centerline of the conveyor belt body 31.

[0037] Cleaning component 2 is a brush-type cleaning machine, which uses rotating anti-static brushes to remove dust and slight adhesive residue from the surface of the PCB circuit board body 4, thereby cleaning the PCB circuit board body 4; at the same time, it can be used in conjunction with a dust collection system to collect the pollutants brushed off, thus avoiding secondary pollution.

[0038] The loading and unloading operations are completed by two sets of loading and unloading robots 5 in conjunction with vacuum suction cup assemblies 6: the PCB circuit board body 4 to be processed is gripped by the loading and unloading robots 5 and vacuum suction cup assemblies 6 and then transferred to the conveyor belt body 31; subsequently, relying on the pushing components on the side wall of the conveyor belt body 31, the PCB circuit board body 4 is fixed and pushed forward. When it is transferred to the corresponding station of the cleaning component 2, the cleaning component 2 cleans its surface; after cleaning, the PCB circuit board body 4 continues to be transferred to the loading and unloading robot 5 station on the other side, where it is gripped by the loading and unloading robots 5 and vacuum suction cup assemblies 6 on that side and removed from the conveyor belt, thus completing the entire cleaning and processing process.

[0039] For PCB circuit board bodies 4 of different sizes, the equipment can achieve compatibility by adjusting the distance between the two conveyor belt bodies 31: by sliding the slider 35 on the slide rail 36, the position of the conveyor belt body 31 is adjusted, thereby changing the distance between the two conveyor belt bodies 31, ensuring that the equipment can adapt to PCB circuit board bodies 4 of different specifications.

[0040] The pushing assembly includes a C-shaped frame 7 disposed on the outer wall of the conveyor belt body 31. A spring 71 is disposed inside the C-shaped frame 7. A movable block 72 is fixed to one end of the spring 71. A pushing block 73 is disposed at one end of the movable block 72. A limiting plate 74 is fixed to the bottom of the pushing block 73. The limiting plate 74 is fixed to the bottom of the movable block 72 by a connecting block. The top of the pushing block 73 is fixed to the top of the movable block 72 by a connecting block. A limiting ring 75 is sleeved on the outside of the pushing block 73. The limiting ring 75 is located above the limiting plate 74. A pressing cover 77 is disposed above the pushing block 73. A support block 76 is fixed to the outer periphery of the top of the pushing block 73. The support block 76 is located above the limiting ring 75. A connecting rod 751 runs longitudinally through the inside of the support block 76. The bottom of the connecting rod 751 is fixedly connected to the top of the limiting ring 75. The top of the connecting rod 751 is fixedly connected to the bottom of the pressing cover 77. A spring 752 is wound around the outside of the connecting rod 751.

[0041] The inner diameter of the limiting ring 75 matches the outer diameter of the push block 73, and the limiting ring 75 can slide up and down on the outside of the push block 73.

[0042] Spring 752 is located between support block 76 and push cover 77. One end of spring 752 is fixedly connected to the bottom of push cover 77, and the other end of spring 752 is fixedly connected to the top of support block 76.

[0043] When the PCB circuit board body 4 is placed between the two conveyor belt bodies 31, the pusher block 73 directly abuts against the two side walls of the PCB circuit board body 4. The side walls of the PCB circuit board body 4 push the pusher block 73 to move inward toward the C-shaped frame 7, thereby causing the movable block 72 to move synchronously and compress the spring 71 to contract. At this time, the elastic restoring force of the spring 71 acts on the movable block 72, driving the pusher block 73 to always be in close contact with the side walls of the PCB circuit board body 4, thereby achieving clamping and fixing of the PCB circuit board body 4. At the same time, the operation of the conveyor belt body 31 will cause the pusher block 73 to move synchronously, thereby pulling the PCB circuit board body 4 forward with the conveyor belt body 31.

[0044] During the clamping and pressing process of the push block 73 against the side wall of the PCB circuit board body 4, the limiting plate 74 at the bottom of the push block 73 contacts the bottom surface of the side of the PCB circuit board body 4 to form a lower support, while the limiting ring 75 on the push block 73 contacts the top surface of the side of the PCB circuit board body 4 to form an upper limit. The distance between the limiting plate 74 and the limiting ring 75 is adapted to the thickness of the side of the PCB circuit board body 4, thereby ensuring that the push block 73 is always in close contact with the side wall of the PCB circuit board body 4, effectively preventing the PCB circuit board body 4 from slipping or shifting during clamping and conveying.

[0045] A pressure plate 82 is provided below the top end cover 32 of the conveyor belt body 31. The pressure plate 82 is located on top of the push cover 77. A ball bearing 78 is provided in the middle of the top of the push cover 77. The top of the ball bearing 78 contacts the bottom of the pressure plate 82. A push rod 81 is fixed on the top of the pressure plate 82. The push rod 81 protrudes from the top of the end cover 32 and a support cylinder 8 is provided on its outside. The support cylinder 8 is fixed to the top of the end cover 32. A side block 83 is fixed on the side wall of the support cylinder 8. A locking rod 84 is threaded inside the side block 83. One end of the locking rod 84 extends into the interior of the support cylinder 8 and contacts the side wall of the push rod 81.

[0046] The push-press covers 77 are evenly distributed at the bottom of the pressure plate 82.

[0047] The distance between the limiting plate 74 and the limiting ring 75 can be adjusted adaptively according to the thickness of the side of the PCB circuit board body 4.

[0048] When it is necessary to reduce the distance between the two, push the push rod 81 downward, causing the pressure plate 82 to move downward simultaneously. The pressure plate 82 presses down the ball bearing 78, driving the push cover 77 to move downward. This, in turn, drives the limiting ring 75 to move downward along the outer side of the push block 73 via the connecting rod 751, thereby reducing the distance between the limiting plate 74 and the limiting ring 75. During this process, the downward movement of the push cover 77 will compress the spring 752, causing it to contract. After the distance is adjusted to the target value, rotate the locking rod 84 so that its end abuts against the side wall of the push rod 81, thereby locking the position of the push rod 81 and fixing the downward pressing state of the pressure plate 82, ensuring that the distance between the limiting plate 74 and the limiting ring 75 remains stable.

[0049] Similarly, when it is necessary to increase the distance between the two, pull the push rod 81 upward, causing the pressure plate 82 to move upward simultaneously; the elastic restoring force of the second spring 752 will push the push cover 77 to move upward, and then drive the limiting ring 75 to move upward along the outside of the push block 73 through the connecting rod 751, thereby increasing the distance between the limiting plate 74 and the limiting ring 75; after the distance is adjusted to the target value, rotate the locking rod 84 to lock the position of the push rod 81, thereby completing the adjustment and fixation of the distance.

[0050] Furthermore, the pressure plate 82 and the ball bearings 78 are in direct contact. As the conveyor belt body 31 moves the pusher block 73, the ball bearings 78 remain in continuous contact with the bottom of the pressure plate 82 and are kept rolling by friction. This converts the sliding friction between the pusher cover 77 and the pressure plate 82 into rolling friction, effectively reducing the impact of frictional resistance on the smoothness of the pusher block 73's movement.

[0051] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A conveying device for PCB circuit board processing, comprising a base (1), a cleaning assembly (2), and a conveying assembly (3), characterized in that: The base (1) has conveying components (3) at both ends of its top. The conveying components (3) include conveyor belt bodies (31) at both ends of the top of the base (1). The upper and lower ends of the conveyor belt bodies (31) are provided with end caps (32). The top end caps (32) of the conveyor belt bodies (31) and the bottom end caps (32) of the conveyor belt bodies (31) are provided with connecting frames (34). The conveyor belt bodies (31) are provided with columns (33) on both sides. The columns (33) are fixedly connected to the connecting frames (34). The bottom of the columns (33) is provided with a slide rail (36). The slide rail (36) is installed on the base (1). A slider (35) is slidably installed on the slide rail (36). The slider (35) is installed on the bottom of the column (33). A pushing component is provided on the outer side wall of the conveyor belt body (31), a PCB circuit board body (4) is provided between the conveying components (3), a cleaning component (2) is provided at the bottom of the base (1), and loading and unloading robots (5) are installed at both ends of the top of the base (1). A vacuum suction cup component (6) is provided on the loading and unloading robot (5). The pushing assembly includes a C-shaped frame (7) disposed on the outer wall of the conveyor belt body (31). A spring (71) is disposed inside the C-shaped frame (7). A movable block (72) is fixed to one end of the spring (71). A pushing block (73) is disposed to one end of the movable block (72). A limiting plate (74) is fixed to the bottom of the pushing block (73). The limiting plate (74) is fixed to the bottom of the movable block (72) by a connecting block. The top of the pushing block (73) is fixed to the top of the movable block (72) by a connecting block. A limiting ring is sleeved on the outside of the pushing block (73). (75), the limiting ring (75) is located above the limiting plate (74), the pushing block (73) is provided with a pressing cover (77), the outer periphery of the top of the pushing block (73) is fixed with a support block (76), the support block (76) is located above the limiting ring (75), the support block (76) has a connecting rod (751) running through its interior longitudinally, the bottom of the connecting rod (751) is fixedly connected to the top of the limiting ring (75), the top of the connecting rod (751) is fixedly connected to the bottom of the pressing cover (77), and a spring (752) is wound around the outside of the connecting rod (751).

2. The conveying device for PCB circuit board processing according to claim 1, characterized in that: There are two conveyor belt bodies (31), and the two conveyor belt bodies (31) are symmetrical at both ends of the top center line of the base (1).

3. The conveying device for PCB circuit board processing according to claim 1, characterized in that: The end caps (32) are provided in two sets, and each set of end caps (32) has two end caps (32), which are symmetrical at the upper and lower ends of the center line of the conveyor belt body (31).

4. The conveying device for PCB circuit board processing according to claim 1, characterized in that: The inner diameter of the limiting ring (75) matches the outer diameter of the push block (73), and the limiting ring (75) can slide up and down on the outside of the push block (73).

5. The conveying device for PCB circuit board processing according to claim 1, characterized in that: The second spring (752) is located between the support block (76) and the push cover (77). One end of the second spring (752) is fixedly connected to the bottom of the push cover (77), and the other end of the second spring (752) is fixedly connected to the top of the support block (76).

6. The conveying device for PCB circuit board processing according to claim 1, characterized in that: A pressure plate (82) is provided below the top end cap (32) of the conveyor belt body (31). The pressure plate (82) is located on the top of the push cover (77). A ball bearing (78) is provided in the middle of the top of the push cover (77). The top of the ball bearing (78) is in contact with the bottom of the pressure plate (82). A push rod (81) is fixed on the top of the pressure plate (82). The push rod (81) protrudes from the top of the end cap (32) and a support cylinder (8) is provided outside it. The support cylinder (8) is fixed on the top of the end cap (32). A side block (83) is fixed on the side wall of the support cylinder (8). A locking rod (84) is threaded inside the side block (83). One end of the locking rod (84) extends into the interior of the support cylinder (8) and contacts the side wall of the push rod (81).

7. A conveying device for PCB circuit board processing according to claim 1, characterized in that: The push-down covers (77) are evenly distributed at the bottom of the pressure plate (82).

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