A chip mounting device for PCB board processing

Abstract

The invention relates to the technical field of PCB patch, and discloses a machine body, wherein a conveying platform for conveying PCB boards is arranged on the machine body, a recovery device and three groups of feeding devices are arranged on both sides of the conveying platform, the other end of a material belt is rolled up on the recovery device, and the material belt passes over the conveying platform, and an imprinting component is arranged on the machine body, and the imprinting component includes a pressing component, and the pressing component acts on the material belt in a rotating state, and electronic components attached to the material belt are imprinted on the PCB board, and electronic components arranged in rows are selected according to a SMT coordinate file of the PCB board, and a clamping ring on the material belt is set according to the position and size of the components, and before spot mounting, a predetermined electronic component is placed in the clamping ring, and after the PCB board is tinned, the PCB board is moved to a predetermined position, and a plurality of electronic components can be quickly installed above the PCB board through imprinting, so as to improve the patch speed.

Description

Technical Field

[0001] The invention relates to the technical field of PCB patch technology, in particular to a patch device for PCB board processing. Background Art

[0002] PCB patch refers to the process of installing components on the surface of a PCB board.

[0003] The reel tape with electronic components is guided by a traction mechanism, and then a spot mounter is used to spot mount the electronic components on the PCB board one by one.

[0004] When the PCB placement machine is working, it installs and patches electronic components according to the SMT coordinate file. In the patch step, the spot mounter needs to spot the electronic components one by one according to the coordinate file. In this process, many small electronic components are distributed in rows and columns. For the electronic components in rows and columns, the spot mounter also needs to spot them one by one. There are many repeated operations in this process, which limits the speed and efficiency of patching. Therefore, a patch device for PCB board processing is proposed. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a patch device for PCB board processing, which has the advantages of being able to quickly install a number of electronic components in a single row or column to increase the patch speed of a patch machine, and solves the problem that the patch machine installs components one by one, resulting in limited patch speed.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a patch device for PCB board processing, comprising a machine body, a conveying platform for conveying PCB boards is arranged on the machine body, a recovery device and three groups of feeding devices are arranged on both sides of the conveying platform, a material belt with electronic components stored in it is rolled up in the feeding device, and the other end of the material belt is rolled up on the recovery device, and the material belt passes over the conveying platform, and an imprinting component is arranged on the machine body, and the imprinting component includes a pressing component, and the pressing component acts on the material belt in a rotating state to remove the electronic components attached to the material belt. The device is engraved on the PCB board. According to the SMT coordinate file of the PCB board, the electronic components arranged in rows are selected, and the clamping ring on the material strip is set according to the position and size of the components. Before spot mounting, the predetermined electronic components are placed in the clamping ring. After the PCB board is tinned, the PCB board is moved to the predetermined position, and the material strip is placed above the PCB board. At this time, the set electronic components are just above the soldering points of the PCB board. Through engraving, several electronic components can be quickly installed above the PCB board to increase the speed of patch mounting.

[0007] Preferably, the material strip includes fins on both sides and a soft strip located between the fins on both sides, the soft strip is provided with a plurality of clamping rings, the electronic components are placed in the clamping rings, the clamping rings are located above the soft strip, and the opening thereof is located at the bottom of the soft strip, the clamping rings are located at the raised portion above, higher than the fins on both sides, and after the clamping rings clamp the electronic components, when force is applied above the clamping rings, the clamping rings are pressed down to the same height as the fins on both sides, so that the electronic components inside the clamping rings can be squeezed out, so as to print the electronic components on the PCB board.

[0008] Preferably, the pressing assembly includes a connecting block, to which a pressure roller is connected, and an electrically controlled telescopic rod is provided on the connecting block and connected to the pressure roller. The pressure roller contacts the clamping ring and presses it to the same height as the fin. When the connecting block rotates, the pressure roller is driven to rotate synchronously. The pressure roller first contacts the material belt on the side of the conveyor table and squeezes out the electronic components in the clamping ring. With the further rotation of the connecting block, in order to avoid excessive pressure on the pressure roller and facilitate the rotation of the connecting block, the electrically controlled telescopic rod contracts to move the pressure roller toward the connecting block to reduce the rotation radius of the connecting block.

[0009] Preferably, a group of positioning components are respectively provided on both sides of the conveying platform, and the two groups of positioning components respectively correspond to the positions of the recovery device and the loading device on both sides. The positioning components include a base and a positioning block arranged in the base. A telescopic rod is arranged in the base to drive the positioning block. The positioning blocks on both sides are respectively docked with the free parts on both sides of a clamping ring. The telescopic rod drives the positioning hole to pop out, and the positioning blocks that pop out on both sides act on the free parts on both sides of a clamping ring, so that the clamping ring can be horizontal and adapted to the size of the PCB board below, so as to facilitate the operation of the pressure roller.

[0010] Preferably, the loading device includes a main material box, and the material tape is rolled up in the material box. Several rolls of material tapes are rolled up in the material box, and the ends of the several rolls of material tapes are fixedly connected by a connecting belt to facilitate the recycling device. Multiple rolls of material tapes in one material box can be rolled up to ensure the integrity of the engraving of a section of electronic components.

[0011] Preferably, the recovery device includes a cylinder, a roller is installed in the cylinder, a motor is provided in the cylinder to drive the roller, a plurality of spacer rings corresponding to the feeding device are provided on the roller, and the connecting belt is fixed on the roller between the corresponding two spacer rings, and is used to simultaneously reel in and pull multiple roller material belts.

[0012] Preferably, a plurality of fixing components are provided on one side of the machine body to fix the loading device, and the fixing components include a main body partition, a partition hole is opened on the partition, a convex plate is installed in the partition hole, a limiting ring is provided at the edge of the partition hole, and an anti-slip ring is provided at the edge of the convex plate to be stuck behind the groove. The fixing components fix the loading device to prevent the material box from shaking during the rotation and winding process of the recovery device and when the positioning block pops out, causing the installation position of the electronic components to shift.

[0013] Preferably, a convex shaft is arranged in the middle of the partition hole, a groove is provided on the convex plate and sleeved on the convex shaft, and a reset spring is arranged between the convex shaft and the convex plate for elastic connection, so that the convex plate can be reset after the material box is squeezed between the two partition plates.

[0014] Preferably, notches are provided at the edges of both sides of the material box, and the convex plates are squeezed into the notches to fix the material box.

[0015] Preferably, three sections of top plates are provided on the conveying platform, corresponding to the positions of the three groups of feeding devices. The top plates lift up the PCB to prevent the PCB from being deformed due to uneven force when the material roller rotates.

[0016] Compared with the prior art, the present invention provides a patch device for PCB board processing, which has the following beneficial effects: electronic components arranged in rows are selected according to the SMT coordinate file of the PCB board, the clamping ring on the material belt is set according to the position and size of the components, and the predetermined electronic components are placed in the clamping ring before spot mounting, after the PCB board is tinned, the PCB board is moved to a predetermined position, and the material belt is placed above the PCB board. At this time, the set electronic components are just above the soldering points of the PCB board, and a number of electronic components can be quickly installed above the PCB board through printing to increase the patch speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall appearance structure of a patch device for PCB board processing according to the present invention;

[0018] Figure 2 This is a schematic diagram of the position of components engraved in a patch device for PCB board processing of the present invention;

[0019] Figure 3 This is a schematic diagram of the feeding structure of a patch device for PCB board processing of the present invention;

[0020] Figure 4 This is a schematic diagram of the structure of a positioning component of a patch device for PCB board processing according to the present invention acting on a material strip;

[0021] Figure 5This is a schematic diagram of a material tape winding structure of a patch device for PCB board processing according to the present invention;

[0022] Figure 6 This is a schematic diagram of a material box structure of a patch device for PCB board processing of the present invention;

[0023] Figure 7 This is a schematic diagram of a material box fixing structure of a patch device for PCB board processing of the present invention;

[0024] Figure 8 This is a schematic diagram of a fixing assembly of a patch device for PCB board processing according to the present invention;

[0025] Fig. 9 This is an enlarged view of the structure of location A of a patch device for PCB board processing of the present invention;

[0026] Fig.10 The present invention is a schematic diagram of a connection block structure of a patch device for PCB board processing.

[0027] In the figure: 1, machine body; 2, recovery device; 3, positioning assembly; 4, imprinting assembly; 5, fixing assembly; 6, feeding device; 7, transmission belt; 8, conveyor platform; 9, top plate; 21, cylinder; 22, roller; 23, spacer ring; 31, base; 32, positioning block; 41, pressing assembly; 42, rotating shaft; 43, driving motor; 411, connecting block; 412, notch; 413, connecting rod; 414, limit Positioning plate; 415, connecting plate; 416, pressure roller; 417, electrically controlled telescopic rod; 51, partition; 52, convex plate; 61, material box; 62, material belt; 63, connector; 511, partition hole; 512, limiting ring; 513, convex shaft; 514, return spring; 521, groove; 522, anti-slip ring; 611, notch; 612, positioning shaft; 621, fin; 622, soft belt; 623, clamping ring. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] As introduced in the background technology, there are deficiencies in the prior art. In order to solve the above technical problems, this application proposes a patch device for PCB board processing.

[0030] In a typical implementation of the present application, Figure 1-10As shown, a patch device for PCB board processing includes a body 1, a conveying table 8 for conveying PCB boards is arranged on the body 1, a recovery device 2 and a feeding device 6 are respectively arranged on both sides of the conveying table 8, a material belt 62 storing electronic components is rolled up in the feeding device 6, and the other end of the material belt 62 is rolled up on the recovery device 2, the material belt 62 spans the conveying table 8 and is located directly above the PCB board, and an engraving component 4 is arranged above the conveying table 8, the engraving component 4 includes a pressing component 41, and the pressing component 41 can act on the material belt 62 in a rotating state to engrave the electronic components on the material belt 62 on the PCB board.

[0031] The same as the conventional PCB placement machine, solder paste is applied to the PCB board in advance, and the roll material belt 62 is also used for feeding. The difference is that the material belt 62 is provided with a clamping ring 623, and the clamping ring 623 has a certain elasticity. The electronic components are clamped therein by the limiting effect. During the feeding process, when the material belt 62 passes over the PCB board, the material belt 62 is straightened, and the positions of the several electronic components attached to the material belt 62 are just aligned with the positions of the solder paste applied on the PCB board. The pressing component 41 rotating above acts on the material belt 62, so that the electronic components attached to the material belt 62 can be squeezed out of the clamping ring 623 and fall onto the PCB board, and It is bonded to the set installation position through solder paste. Since three groups of feeding devices 6 are provided, different electronic components are attached to the rolled material tapes 62 on the three groups of feeding devices 6. Through repeated operations, the electronic components can be completely installed on the PCB board. It should be noted that due to the size limitation of the material tape 62, the electronic components carried in the clamping ring 623 are also limited. For example, small electronic components such as R, FS, D, and C can be carried directly by adjusting the size of the clamping ring 623. However, larger electronic components such as M, T, and BT need to be installed manually later, just like conventional placement machines.

[0032] Furthermore, the main body of the feeding device 6 is a material box 61, a positioning shaft 612 is provided in the material box 61, a total of several rolls of the material belt 62 are provided, all of which are wound on the positioning shaft 612, and a connecting belt 63 is provided at the starting end of the several rolls of the material belt 62 to connect the ends of the several rolls of the material belt 62 together, and the main body of the recovery device 2 is a cylinder 21, a roller 22 is rotatably installed in the cylinder 21, and a motor for driving the roller 22 is provided in the cylinder 21, and a plurality of spacer rings 23 are provided on the roller 22, and the setting position of the spacer ring 23 corresponds to the position of the feeding device 6, and the material belt 62 in the single-box feeding device 6 is wound by the roller 22 of a group of spacer rings 23; but when the roller 22 rotates, the material belts 62 corresponding to the three groups of feeding devices 6 are wound at the same time;

[0033] The material belt 62 includes a soft belt 622 in the middle part, and the two side parts of the soft belt 622 are fins 621. The clamping rings 623 are all on the soft belt 622. The clamping rings 623 are located on the upper layer of the soft belt 622, and its opening is located below the soft belt 622. When the soft belt 622 carries electronic components, it is attached to the clamping ring 623 from the lower opening. Note that compared with the fins 621, the raised part of the clamping ring 623 at the top is higher than the fins 621 on both sides. The clamping ring 623 is arranged in sections. The electronic components carried in the single-section clamping ring 623 are just what are needed to be installed at the docking position between a single PCB board and the material belt 62.

[0034] When the material belt 62 is rolled up in the material box 61, it is kept in a relatively loose state to prevent the electronic components carried from being squeezed, so as to prevent the electronic components from falling off from the clamping ring 623 and causing problems in subsequent installation;

[0035] During operation, the connecting belt 63 is pulled onto the recovery device 2 and fixed onto the roller 22 between the two corresponding spacer rings 23. The front traction part is not provided with the clamping ring 623 to avoid material waste. The material belt 62 is wound up by the rotation of the roller 22, and the rear part provided with the clamping ring 623 is driven to move to the top of the conveyor table 8. The conveyor table 8 drives the PCB board to move to the bottom of the material belt 62. The material belt 62 is then flattened by the pressing devices on both sides so that it is directly above the conveyor table 8. Then the imprinting component 4 works. When the imprinting component 4 rotates, it contacts the clamping ring 623 in the raised state and presses the clamping ring 623 to the same level as the material belt 62. Height, and then squeeze out the electronic components attached to the clamping ring 623 to install them at the predetermined position on the PCB board. After squeezing out the electronic components attached to the single-stage clamping ring 623, the imprinting assembly 4 is reset and disengaged from the material belt 62. At the same time, the parts flattened by the feeding device 6 are also reset. Then the roller 22 rotates to reel in the used material belt 62. During the reeling process, the next unused clamping ring 623 is moved to the top of the conveyor table 8 again. Synchronously, the conveyor table 8 transfers the PCB board to the position corresponding to the next group of feeding devices 6, and works reciprocatingly to install all the electronic components on the PCB board through multiple imprinting.

[0036] Furthermore, the imprinting assembly 4 includes a pressing assembly 41, a rotating shaft 42 and a driving motor 43. The pressing assembly 41 is mounted on the rotating shaft 42. The driving motor 43 drives the rotating shaft 42. The rotating shaft 42 drives the pressing assembly 41 to rotate during rotation, and contacts with the clamping ring 623 to complete the imprinting.

[0037] The main body of the pressing component 41 is a connecting block 411, which is provided with a notch 412. A connecting plate 415 is connected to the bottom of the connecting block 411. A connecting rod 413 is provided on the connecting plate 415 and inserted into the notch 412. A limiting piece 414 is provided on the connecting rod 413 and is stuck in the bottom of the notch 412. An electrically controlled telescopic rod 417 is provided at the top of the notch 412 corresponding to the connecting rod 413. The electrically controlled telescopic rod 417 is in an extended state and is fixedly connected to the end of the connecting rod 413. A pressure roller 416 is rotatably connected to the bottom of the connecting plate 415.

[0038] When the connecting rod 413 drives the connecting block 411 to rotate, the pressure roller 416 at the end of the connecting block 411 will contact the clamping ring 623 and squeeze out the electronic components attached to the clamping ring 623. During the rotation process, the pressure roller 416 first contacts the clamping ring 623 corresponding to the side of the conveyor 8 and presses it to the same level as the fin 621, and then squeezes out the electronic components attached therein. When the connecting block 411 rotates further, the electrically controlled telescopic rod 417 works to pull the connecting rod 413 into the notch 412, so that the connecting plate 415 and the pressure roller 416 connected below also approach the connecting block 411, thereby achieving the effect of reducing the rotation radius of the connecting block 411, but the pressure roller 416 The roller 416 always remains in a docking state with the clamping ring 623, and the electronic components therein can be squeezed out. When the pressure roller 416 is completely close to the connecting block 411, the connecting block 411 is in a vertical downward state. When the connecting block 411 rotates further, the electrically-controlled telescopic rod 417 works to push the pressure roller 416 outward so that it continues to dock with the planar material belt 62 to completely squeeze out the electronic components attached to the single-stage clamping ring 623. After completion, the electrically-controlled telescopic rod 417 retracts the pressure roller 416 to a close contact state and rotates it back to its initial state to cooperate with the cooperation of the conveyor table 8 and the material belt 62 described in the aforementioned text, so as to facilitate the pressing of the next section of the clamping ring 623.

[0039] For further information, see Figure 4 A positioning assembly 3 is provided on each side of the conveying platform 8 to limit the material belt 62. During the printing operation, the material belt 62 is in a horizontal state. The two positioning assemblies 3 correspond to the positions of the feeding device 6 and the recovery device 2 respectively. The positioning assembly 3 includes a main base 31 and a positioning block 32 located in the base 31. The base 31 is equipped with a telescopic rod to push the positioning block 32. The positioning assembly 3 corresponding to the side of the recovery device 2 is located at the top, and the positioning assembly 3 corresponding to the side of the feeding device 6 is located at the bottom. Before the printing assembly 4 works, the single-section clamping ring 623 moves to the printing position and then the positioning assembly 3 works. The upper positioning block 32 and the lower positioning block 32 both pop outward and act on the blank parts on both sides of a section of the clamping ring 623, so that the section of the material belt 62 is in a horizontal state, so as to facilitate the connection block 411 to work.

[0040] Furthermore, a transmission belt 7 is provided on each side of the conveyor platform 8. The two transmission belts 7 lift up the PCB board and push it. Corresponding to the position of the material belt 62, a top plate 9 is provided on the conveyor platform 8. When the transmission belt 7 moves the PCB board to the position corresponding to the material belt 62, the top plate 9 lifts up the PCB board and cooperates with the upper connecting block 411 to avoid the transmission belt 7 supporting the PCB board, causing the transmission belt 7 to be insufficiently stressed, and the PCB board to sink when the connecting block 411 is working. At the same time, the top plate 9 provides a large range of support for the PCB board, which can avoid the problem of large deformation of the PCB board due to pressure when electronic components fall on the PCB board, so as to ensure the accuracy of the installation position.

[0041] Furthermore, a fixing component 5 is provided on one side of the feeding device 6 to limit the feeding device 6. A recess 611 is respectively provided on both sides of the material box 61. The main body of the fixing component 5 is a partition 51, and a convex plate 52 is provided on the fitting surface with the feeding device 6 to be inserted into the recess 611 to limit the installation of the material box 61, so as to prevent the material box 61 from shaking during the rotation and winding process of the recovery device 2 and when the positioning block 32 pops out, causing the installation position of the electronic components to shift.

[0042] A partition hole 511 is provided on the partition plate 51, and a limiting ring 512 is provided at the edge of the partition hole 511. The convex plate 52 is sunken in the partition hole 511. An anti-slip ring 522 is provided at the edge of the convex plate 52, which is stuck behind the limiting ring 512 to prevent the convex plate 52 from falling off from the partition hole 511. A convex shaft 513 is provided in the middle of the partition hole 511, and a groove 521 is provided on the convex plate 52. The convex shaft 513 is inserted into the groove 521. A reset spring 514 is provided on the outside of the convex shaft 513, so that the convex plate 52 and the partition plate 51 are in an elastic connection state, and the convex plate 52 can be recessed into the partition hole 511 and completely received therein.

[0043] When installing the feeding device 6, the feeding device 6 is inserted between the two fixing components 5, and the edge portion of the material box 61 first contacts the edge portion of the protruding plate 52. When the material box 61 is further squeezed between the two fixing components 5, the protruding plate 52 is squeezed into the partition hole 511. After that, after the material box 61 is completely sunk between the two fixing components 5, the protruding plate 52 is popped out by the action of the return spring 514 and squeezed into the recess 611 to limit and fix the material box 61. When the material box 61 is replaced later, the material box 61 can be pulled out and replaced.

[0044] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A patch device for PCB board processing, comprising a body (1), characterized in that: The machine body (1) is provided with a conveying platform (8) for conveying PCB boards, and a recovery device (2) and three groups of feeding devices (6) are respectively provided on both sides of the conveying platform (8). A material belt (62) storing electronic components is rolled up in the feeding device (6), and the other end of the material belt (62) is rolled up on the recovery device (2). The material belt (62) passes over the conveying platform (8). The machine body (1) is provided with an engraving component (4), and the engraving component (4) includes a pressing component (41). When the pressing component (41) is in a rotating state, it acts on the material belt (62) to engrave the electronic components attached to the material belt (62) on the PCB board; The material strip (62) includes fins (621) on two sides and a soft strip (622) located between the fins (621) on both sides. The soft strip (622) is provided with a plurality of clamping rings (623). The electronic components are placed in the clamping rings (623). The clamping rings (623) are located above the soft strip (622) and their openings are located at the bottom of the soft strip (622). The clamping rings (623) are located at the raised portion above and are higher than the fins (621) on both sides. The pressing assembly (41) comprises a connecting block (411), the connecting block (411) is connected to a pressing roller (416), the connecting block (411) is provided with an electrically controlled telescopic rod (417) connected to the pressing roller (416), the pressing roller (416) contacts the clamping ring (623) and presses it to the same height as the fin (621); A group of positioning components (3) is respectively arranged on both sides of the conveying platform (8), and the two groups of positioning components (3) correspond to the positions of the recovery device (2) and the feeding device (6) on both sides respectively. The positioning components (3) include a base (31) and a positioning block (32) arranged in the base (31). A telescopic rod is arranged in the base (31) to drive the positioning block (32), and the positioning blocks (32) on both sides are respectively connected with the empty parts on both sides of a clamping ring (623).

2. A patch device for PCB board processing according to claim 1, characterized in that: The feeding device (6) comprises a material box (61), a material strip (62) is rolled up in the material box (61), a plurality of rolled material strips (62) are rolled up in the material box (61), and the ends of the plurality of rolled material strips (62) are fixedly connected by a connecting strip (63).

3. A patch device for PCB board processing according to claim 2, characterized in that: The recovery device (2) comprises a cylinder (21), a rotating roller (22) is installed in the cylinder (21), a motor for driving the rotating roller (22) is arranged in the cylinder (21), a plurality of spacer rings (23) corresponding to the feeding device (6) are arranged on the rotating roller (22), and the connecting belt (63) is fixed on the rotating roller (22) between the corresponding two spacer rings (23).

4. A patch device for PCB board processing according to claim 3, characterized in that: A plurality of fixing components (5) are arranged on one side of the machine body (1) to fix the feeding device (6), and the fixing components (5) include a main body partition (51), a partition hole (511) is opened on the partition (51), a convex plate (52) is installed in the partition hole (511), a limiting ring (512) is arranged at the edge of the partition hole (511), and an anti-slip ring (522) is arranged at the edge of the convex plate (52) and is stuck behind the groove (521).

5. A patch device for PCB board processing according to claim 4, characterized in that: A convex shaft (513) is arranged in the middle of the partition hole (511), a groove (521) is provided on the convex plate (52) and is sleeved on the convex shaft (513), and a return spring (514) is arranged between the convex shaft (513) and the convex plate (52) for elastic connection.

6. A patch device for PCB board processing according to claim 5, characterized in that: Notches (611) are provided at the edges of both sides of the material box (61), and the convex plates (52) are squeezed into the notches (611).

7. A patch device for PCB board processing according to claim 6, characterized in that: The conveying platform (8) is provided with three sections of top plates (9) corresponding to the positions of the three groups of feeding devices (6).

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