SMT chip mounter

Abstract

The utility model relates to the technical field of circuit board production, in particular to an SMT chip mounter which comprises a machine body, one side of the machine body is provided with conveying equipment, and one side of the machine body is provided with a box body. According to the utility model, a plurality of circuit boards are adhered through the rubber plates on the two transmission ring belts, then the box body is placed beside the machine body, the conveying equipment part enters the box body, the two stepping motors are started to drive the two transmission ring belts to rotate to drive the circuit boards to move towards the rubber belt, and the uppermost circuit board is naturally attached to the rubber belt; when the rubber plate moves to the bent position of the adjacent transmission ring belts, the distance is increased and the rubber plate is naturally separated from the rubber plate, the power motor is started to loosen the rubber belt, the circuit board naturally falls down due to self weight, then the power motor is started again to straighten the rubber belt, and meanwhile the two transmission ring belts rotate reversely; and one surface of the rubber plate without the rubber liquid is pressed against the uppermost circuit board and is pressed against the conveying equipment from the adhesive tape, so that dirt on the surface of the circuit board is stuck away by utilizing the adhesive tape, and the machine body can conveniently carry out surface mounting operation on the circuit board.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit board production, in particular to an SMT chip mounter. Background Art

[0002] During the production of PCB circuit boards, since various assembly components need to be installed on the circuit boards, a placement machine is usually used to install the circuit boards, and then the circuit boards are connected to the components through methods such as reflow soldering or dip soldering. The existing SMT automatic placement machines can automatically calibrate the internal circuit board position, and automatically identify the components and installation positions to install the components. However, most general placement machines manually add circuit boards to the placement machines, which is inconvenient. In addition, during transportation, the circuit boards may be adhered to dust or dirt before being added to the placement machine, resulting in the placement machine's internal automatic recognition system may not be able to identify the installation position, which is inconvenient. In addition, dirt on the surface of the circuit board may affect the subsequent welding process, which is inconvenient. Utility Model Content

[0003] The purpose of the utility model is to provide a SMT placement machine to solve the problems raised in the above background technology.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] An SMT placement machine comprises a machine body, and a conveying device is arranged on one side of the machine body, a box body is arranged on one side of the machine body, and a transport mechanism is arranged inside the box body, and a cleaning mechanism is arranged in conjunction with the transport mechanism;

[0006] The transport mechanism includes two plates, and rollers are rotatably connected at both ends of one side of the two plates. A transmission belt is rotatably sleeved between the outer sides of the two rollers on the same plate, and multiple rubber plates are fixedly connected to the outer sides of the two transmission belts.

[0007] The invention further comprises: a slide rail is arranged on the bottom surface of the box body, sliders are fixedly connected to the bottom ends of the two plate bodies, and the two sliders are slidably engaged with the inside of the slide rails, an adjusting screw is rotatably connected between the two ends inside the slide rails, and a connecting groove is provided at the bottom end of an inner wall of the box body, a driving box is arranged at one end of the slide rail, and a driving motor is arranged inside the driving box, the motor shaft of the driving motor passes through the connecting groove and is fixedly connected to one end of the adjusting screw, a screw hole is provided at one end of the two sliders for screwing the inner wall with the outer wall of the adjusting screw, and a plurality of moving wheels are fixedly connected to the bottom surface of the driving box.

[0008] Furthermore, a motor box is fixedly connected to the bottom end of the other side of the two plates, and a stepper motor is arranged inside the two motor boxes. The motor shafts of the two stepper motors pass through the adjacent plates and are fixedly connected to one end of the adjacent roller.

[0009] Furthermore, the other ends of the four rollers are fixedly connected to a limiting plate.

[0010] Further, the cleaning mechanism includes a connecting frame, and the connecting frame is U-shaped, one side of the connecting frame is fixedly connected to one side of the box body, and one side of the box body and the top surface of the box body are both provided with rectangular through holes, a rotating rod is rotatably connected between the two arms of the connecting frame, and an outer wall of the rotating rod is fixedly wrapped with tape, two support plates are fixedly connected to the top surface of the box body, and a winding rod is rotatably connected between the two support plates, a limiting rod is fixedly connected between two opposite inner walls of the box body, and one end of the tape passes through the two rectangular through holes in sequence and bypasses the outer wall of the limiting rod, one end of the tape is fixedly wrapped around the outer wall of the winding rod, a power box is fixedly connected to the top surface of the box body, and a power motor is arranged inside the power box, and the motor shaft of the power motor passes through adjacent support plates and is fixedly connected to one end of the winding rod.

[0011] Furthermore, a circular hole is provided on the top surface of the connecting frame, and a sliding rod is slidably sleeved inside the circular hole, a pressure plate is fixedly connected to the bottom end of the sliding rod, and the pressure plate is slidably clamped between the two arms of the connecting frame, and a tension spring is fixedly connected between the top end of the sliding rod and the top surface of the connecting frame.

[0012] Furthermore, one side of the box body is fixedly connected with an electric push rod, and the movable end of the electric push rod is fixedly connected to one side of the slide rail.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The method places a plurality of circuit boards between two transmission belts, and makes the two ends of the bottom surface of the circuit boards adhered by two parallel rubber sheets on the two transmission belts respectively, and then places the box body on one side of the machine body, so that the conveying equipment part enters the box body, and then starts the two stepper motors to drive the two transmission belts to rotate in opposite directions, so that the plurality of circuit boards move toward the tape in turn, and then the top circuit board is attached to the tape, and as the two transmission belts continue to rotate, the rubber sheet moves to the bending part of the adjacent transmission belts and the spacing increases and naturally separates from the rubber sheet, and starts the power motor to relax the tape, so that the circuit board naturally falls due to its own weight, and then starts the power motor again to straighten the tape, and at the same time the two transmission belts are reversed, so that the side of the rubber sheet without glue touches the top circuit board to push it off the tape and onto the conveying equipment, so that the dirt on the surface of the circuit board is removed by the tape, which is convenient for the machine body to perform chip placement on the circuit board. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the internal structure of the box body in the utility model;

[0017] Figure 3 It is an exploded diagram of the transport mechanism structure in the utility model;

[0018] Figure 4 It is a schematic diagram of the cross-sectional structure of the cleaning mechanism in the utility model;

[0019] Figure 5 It is a structural schematic diagram of a connecting frame and a pressing plate in the utility model.

[0020] In the figure: 100, machine body; 110, conveying equipment; 200, box body; 201, connecting groove; 210, electric push rod; 300, transportation mechanism; 310, plate body; 311, slider; 320, roller; 321, limit plate; 330, transmission belt; 331, rubber plate; 340, motor box; 350, slide rail; 351, adjusting screw rod; 360, drive box; 361, moving wheel; 400, cleaning mechanism; 410, connecting frame; 420, rotating rod; 430, adhesive tape; 440, winding rod; 441, power box; 450, limit rod; 460, slide rod; 461, pressure plate; 462, tension spring. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figures 1 to 5 In an embodiment of the utility model, an SMT placement machine includes a body 100, and a conveying device 110 is arranged on one side of the body 100, a box body 200 is arranged on one side of the body 100, and a transport mechanism 300 is arranged inside the box body 200, and the transport mechanism 300 is equipped with a cleaning mechanism 400;

[0023] The transport mechanism 300 includes two plates 310 , and rollers 320 are rotatably connected at both ends of one side of the two plates 310 . A transmission belt 330 is rotatably sleeved between the outer walls of the two rollers 320 on the same plate 310 , and multiple rubber plates 331 are fixedly connected to the outer walls of the two transmission belts 330 .

[0024] Specifically, by placing the box body 200 on one side of the machine body 100, the conveying device 110 on the machine body 100 partially enters the interior of the box body 200, and the glue sheet 331 has only one side as a glue surface, and the other side has no glue. The user places multiple circuit boards between the two transmission belts 330, and the two ends of the bottom surfaces of the multiple circuit boards are respectively adhered by the two parallel glue sheets 331 on the two transmission belts 330, and then the two transmission belts 330 are rotated so that the multiple circuit boards can be moved in turn to the cleaning mechanism 400 to be cleaned and automatically fall onto the conveying device 110 to be conveyed into the machine body 100, so that the circuit boards can be automatically conveyed, thereby facilitating the user to feed materials into the interior of the placement machine.

[0025] Embodiment 1

[0026] like Figure 2-3 As shown, in the present embodiment, a slide rail 350 is provided on the inner bottom surface of the box body 200, and sliders 311 are fixedly connected to the bottom ends of the two plate bodies 310, and the two sliders 311 are slidably engaged in the inside of the slide rail 350, and an adjusting screw rod 351 is rotatably connected between the two ends inside the slide rail 350, and a connecting groove 201 is provided at the bottom end of an inner side wall of the box body 200, a driving box 360 is provided at one end of the slide rail 350, and a driving motor is provided inside the driving box 360, and the motor shaft of the driving motor passes through the connecting groove 201 and is fixedly connected to one end of the adjusting screw rod 351, and a screw hole is provided at one end of the two sliders 311, and the inner side wall and the outer side wall of the adjusting screw rod 351 are screwed together, and a plurality of moving wheels 361 are fixedly connected to the bottom surface of the driving box 360.

[0027] In this embodiment, the adjusting screw 351 is a positive and negative thread screw, so that when the adjusting screw 351 rotates, it can drive the two plate bodies 310 to move toward or away from each other, thereby controlling the spacing between the two transmission belts 330, so that the upper glue plate 331 can adhere to circuit boards of different specifications. The user can start the drive motor to drive the adjusting screw 351 to rotate, which is convenient for the user to use.

[0028] like Figure 2-3 As shown, in this embodiment, the bottom ends of the other sides of the two plates 310 are fixedly connected to motor boxes 340, and stepper motors are arranged inside the two motor boxes 340. The motor shafts of the two stepper motors pass through the adjacent plates 310 and are fixedly connected to one end of the adjacent rollers 320, and the other ends of the four rollers 320 are fixedly connected to the limiting plate 321.

[0029] During specific implementation, the user can control the two stepper motors to rotate synchronously through a one-to-two controller, so that the two stepper motors drive the adjacent rollers 320 to rotate, and the two transmission belts 330 to rotate, and the transmission belts 330 are limited by the limiting plate 321 to prevent the transmission belts 330 from skewing or detaching from the adjacent rollers 320.

[0030] like Figure 4 As shown, in the present embodiment, the cleaning mechanism 400 includes a connecting frame 410, and the connecting frame 410 is U-shaped, one side of the connecting frame 410 is fixedly connected to one side of the box body 200, and one side of the box body 200 and the top surface of the box body 200 are both provided with rectangular through holes, a rotating rod 420 is rotatably connected between the two arms of the connecting frame 410, and an adhesive tape 430 is fixedly wound around the outer wall of the rotating rod 420, two support plates are fixedly connected to the top surface of the box body 200, and a winding rod 440 is rotatably connected between the two support plates, a limiting rod 450 is fixedly connected between the two opposite inner walls of the box body 200, and one end of the adhesive tape 430 passes through the two rectangular through holes in sequence and bypasses the outer wall of the limiting rod 450, one end of the adhesive tape 430 is fixedly wound around the outer wall of the winding rod 440, a power box 441 is fixedly connected to the top surface of the box body 200, and a power motor is arranged inside the power box 441, and the motor shaft of the power motor passes through the adjacent support plates and is fixedly connected to one end of the winding rod 440.

[0031] When the two transmission belts 330 drive the top circuit board to move to the adhesive tape 430, the two transmission belts 330 continue to rotate so that most of the top circuit board is adhered to the adhesive tape 430. As the two transmission belts 330 continue to rotate and the power motor is started, the reeling rod 440 slightly releases the adhesive tape 430, thereby loosening the adhesive tape 430 at the top circuit board, and then the two rubber sheets 331 adhered to the circuit board adhered to the adhesive tape 430 move to the bending part of the adjacent transmission belts 330, so that the distance between the two rubber sheets 331 increases and the two circuit boards are separated, and the circuit board adhered to the adhesive tape 430 presses the falling part of the adhesive tape 430 due to its own weight, so that the two rubber sheets 331 separated from the circuit board move to the top. The adhesive tape 430 is then started to roll up the adhesive tape 430, so that the adhesive tape 430 is straightened again and drives the adhered circuit board to move up. At the same time, the two stepper motors are started to reverse the two transmission belts 330, so that the two adhesive sheets 331 that were originally separated from the circuit board have a side without adhesive to contact the circuit board adhered to the adhesive tape 430, so that the circuit board is pushed onto the conveying device 110, and is conveyed to the inside of the machine body 100 by the conveying device 110, and is automatically calibrated in the inside of the machine body 100 for patching, so that the adhesive tape 430 can be used to stick away dust and other dirt on the surface of the circuit board. The two plate bodies 310 are both tilted, and their tilt angles can be targeted according to the form of the conveying device 110 on the different types of patch machines to be adapted during production. The size and spacing of the adhesive sheets 331 on the transmission belt 330 can also be automatically adjusted according to production needs during production.

[0032] Embodiment 2

[0033] On the basis of the first embodiment, the pressing plate 461 is provided to prevent the rotating rod 420 from rotating naturally.

[0034] like Figure 4-5 As shown, in this embodiment, a circular hole is opened on the top surface of the connecting frame 410, and a sliding rod 460 is slidably sleeved inside the circular hole, a pressure plate 461 is fixedly connected to the bottom end of the sliding rod 460, and the pressure plate 461 is slidably clamped between the two arms of the connecting frame 410, a tension spring 462 is fixedly connected between the top of the sliding rod 460 and the top surface of the connecting frame 410, an electric push rod 210 is fixedly connected to one side of the box body 200, and the movable end of the electric push rod 210 is fixedly connected to one side of the slide rail 350.

[0035] In specific implementation, the pressure plate 461 is always pressed against the tape 430 wrapped around the rotating rod 420 under the pull of the tension spring 462, so that the tape 430 is not easy to rotate under the pressure of the pressure plate 461 when it is not pulled by the winding rod 440. The user can adjust the position of the slide rail 350 and the two plate bodies 310 through the electric push rod 210.

[0036] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0037] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An SMT placement machine, comprising a machine body, and a conveying device is arranged on one side of the machine body, characterized in that: A box body is provided on one side of the machine body, and a transport mechanism is provided inside the box body, and the transport mechanism is equipped with a cleaning mechanism; The transport mechanism includes two plates, and rollers are rotatably connected at both ends of one side of the two plates. A transmission belt is rotatably sleeved between the outer sides of the two rollers on the same plate, and multiple rubber plates are fixedly connected to the outer sides of the two transmission belts.

2. The SMT placement machine according to claim 1, characterized in that: A slide rail is provided on the bottom surface of the box body, and sliders are fixedly connected to the bottom ends of the two plate bodies, and the two sliders are slidably engaged with the inside of the slide rails, an adjusting screw rod is rotatably connected between the two ends inside the slide rails, and a connecting groove is provided at the bottom end of an inner wall of the box body, a driving box is provided at one end of the slide rail, and a driving motor is provided inside the driving box, the motor shaft of the driving motor passes through the connecting groove and is fixedly connected to one end of the adjusting screw rod, and a screw hole is provided at one end of the two sliders for screwing the inner wall with the outer wall of the adjusting screw rod, and a plurality of moving wheels are fixedly connected to the bottom surface of the driving box.

3. The SMT placement machine according to claim 2, characterized in that: The bottom ends of the other sides of the two plates are fixedly connected with motor boxes, and stepper motors are arranged inside the two motor boxes. The motor shafts of the two stepper motors pass through the adjacent plates and are fixedly connected with one end of the adjacent roller.

4. The SMT placement machine according to claim 3, characterized in that: The other ends of the four rollers are fixedly connected to a limiting plate.

5. The SMT placement machine according to claim 4, characterized in that: The cleaning mechanism includes a connecting frame, and the connecting frame is U-shaped, one side of the connecting frame is fixedly connected to one side of the box body, and one side of the box body and the top surface of the box body are both provided with rectangular through holes, a rotating rod is rotatably connected between the two arms of the connecting frame, and an outer wall of the rotating rod is fixedly wrapped with a tape, two support plates are fixedly connected to the top surface of the box body, and a winding rod is rotatably connected between the two support plates, a limiting rod is fixedly connected between the two opposite inner walls of the box body, and one end of the tape passes through the two rectangular through holes in sequence and bypasses the outer wall of the limiting rod, one end of the tape is fixedly wrapped around the outer wall of the winding rod, a power box is fixedly connected to the top surface of the box body, and a power motor is arranged inside the power box, and the motor shaft of the power motor passes through adjacent support plates and is fixedly connected to one end of the winding rod.

6. The SMT placement machine according to claim 5, characterized in that: A circular hole is opened on the top surface of the connecting frame, and a sliding rod is slidably sleeved inside the circular hole. A pressure plate is fixedly connected to the bottom end of the sliding rod, and the pressure plate is slidably clamped between the two arms of the connecting frame. A tension spring is fixedly connected between the top end of the sliding rod and the top surface of the connecting frame.

7. The SMT placement machine according to claim 6, characterized in that: One side of the box body is fixedly connected with an electric push rod, and the movable end of the electric push rod is fixedly connected with one side of the slide rail.

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