PCB substrate conveyor and grinder with leveling function

Abstract

The present invention discloses a PCB substrate conveying device with a leveling function, wherein the first conveyor belt mechanism comprises a first conveyor belt and a plurality of first pressure rollers, the first pressure rollers are arranged below the first conveyor belt and can press the PCB substrate on the surface of the first conveyor belt; the second conveyor belt mechanism comprises a second conveyor belt and a plurality of second pressure rollers, the second pressure rollers are arranged above the second conveyor belt and can press the PCB substrate on the surface of the second conveyor belt, the first conveyor belt mechanism and the second conveyor belt mechanism are arranged front and back, the first conveyor belt and the second conveyor belt are parallel to each other and staggered up and down; the leveling roller is arranged below the output end of the first conveyor belt and close to the input end of the second conveyor belt in a liftable manner, and the leveling roller can adjustably press the PCB substrate on the surface of the first conveyor belt. The present invention discloses a grinding machine, wherein the leveling roller can press the PCB substrate against the first conveyor belt to prevent the PCB substrate from bending and deforming.

Description

Technical Field

[0001] The invention relates to the field of PCB board equipment, and in particular to a PCB substrate conveying device and a grinder with a leveling function. Background Art

[0002] The Chinese name of PCB is printed circuit board, also known as printed circuit board. It is an important electronic component, a support for electronic components, and a carrier for electrical connection of electronic components. When making PCB, the surface of PCB substrate needs to be polished, such as using a grinder to polish the upper and lower surfaces of PCB substrate. The current polishing and conveying device includes at least two parallel conveyor belts, and the two conveyor belts are at different heights. The upper and lower surfaces of PCB substrate can respectively abut the two conveyor belts. When the PCB substrate is transferred between different conveyor belts, one side of the PCB substrate is polished first. The upper and lower surfaces of PCB substrate are subject to unbalanced driving force. PCB substrate is prone to reverse bending deformation, especially thin-walled metal plates, which will form curling, seriously affecting the transition of PCB substrate from one conveyor belt to another. At the same time, due to the excessive curling of PCB substrate, it is not easy to attach to the belt. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a PCB substrate conveying device with a leveling function, which can.

[0004] The present invention also provides a grinding machine having the above-mentioned PCB substrate conveying device with leveling function.

[0005] According to the first aspect of the present invention, a PCB substrate conveying device with a leveling function includes a first conveyor belt mechanism, a second conveyor belt mechanism and a leveling roller. The first conveyor belt mechanism includes a first conveyor belt and a plurality of first pressure rollers, the first pressure rollers are arranged below the first conveyor belt and can press the PCB substrate on the surface of the first conveyor belt; the second conveyor belt mechanism includes a second conveyor belt and a plurality of second pressure rollers, the second pressure rollers are arranged above the second conveyor belt and can press the PCB substrate on the surface of the second conveyor belt, the first conveyor belt mechanism and the second conveyor belt mechanism are arranged front and back, the first conveyor belt and the second conveyor belt are parallel to each other and staggered up and down; the leveling roller is arranged below the output end of the first conveyor belt and close to the input end of the second conveyor belt in a liftable manner, and the leveling roller can adjustably press the PCB substrate on the surface of the first conveyor belt.

[0006] According to the PCB substrate conveying device with leveling function of the embodiment of the present invention, at least the following beneficial effects are achieved: the first pressure roller presses the PCB substrate onto the first conveyor belt, and when the first conveyor belt rotates, the PCB substrate can be conveyed along with the first conveyor belt, and the PCB substrate is conveyed between the first conveyor belt and the first pressure roller, at which time the lower surface of the PCB substrate can be exposed to be grinded by the grinding device of the grinder. When the PCB substrate is conveyed to the area where the first conveyor belt mechanism and the second conveyor belt mechanism intersect, the leveling roller rises to firmly press the PCB substrate against the first conveyor belt to prevent the PCB substrate from bending and deforming, so that the PCB substrate can be transferred to the second conveyor belt and the second pressure roller in a flat state. When the PCB substrate is conveyed between the second conveyor belt and the second pressure roller, the upper surface of the PCB substrate can be exposed to be grinded by the grinding device of the grinder.

[0007] According to some embodiments of the present invention, a guide plate is further included, and the guide plate is arranged above the input end of the second conveyor belt and close to the area of ​​the first conveyor belt.

[0008] According to some embodiments of the present invention, it further includes a frame, the first conveyor belt mechanism and the second conveyor belt mechanism are arranged on the frame, and the frame is also provided with a lifting drive device, and the output end of the lifting drive device is connected to the leveling roller.

[0009] According to some embodiments of the present invention, the lifting drive device includes two linear drive mechanisms and two slides, the linear drive mechanisms are arranged on the frame, the two slides are slidably arranged on the frame up and down, the output ends of the two linear drive mechanisms are respectively connected to the two slides, and the leveling roller is rotatably arranged across the two slides.

[0010] According to some embodiments of the present invention, the linear drive mechanism is connected to the frame via a hinge shaft, and the lifting drive device also includes two rotating shafts rotatably provided on the frame, with connecting rods and cams respectively provided at both ends of the rotating shafts, the connecting rods are connected to the output end of the linear drive mechanism, and the sliding seat can rest on the cam.

[0011] According to some embodiments of the present invention, a plurality of mounting plates are provided on the frame, and the first pressing roller is rotatably arranged across two of the mounting plates.

[0012] According to some embodiments of the present invention, a slider that can slide up and down is provided on the mounting plate, and an ear plate is provided on the end of the mounting plate away from the first conveyor belt. An adjusting member is threadedly connected to the ear plate, and one end of the adjusting member can be abutted against the slider, and the first pressure roller can be rotatably straddled between the two sliders.

[0013] According to some embodiments of the present invention, an elastic member is sleeved on the adjusting member, and two ends of the elastic member abut against the ear plate and the sliding block respectively.

[0014] According to some embodiments of the present invention, the first conveyor belt mechanism also includes a rotary drive mechanism, an active roller and a driven roller, the rotary drive mechanism, the active roller and the driven roller are all arranged on the frame, the first conveyor belt is wound around the active roller and the driven roller, and the output end of the rotary drive mechanism is connected to the active roller.

[0015] According to the second aspect of the present invention, the grinding machine includes a machine platform and the above-mentioned PCB substrate conveying device with leveling function, wherein the PCB substrate conveying device with leveling function is arranged on the machine platform, and the machine platform is provided with grinding devices in the areas corresponding to the first conveyor belt and the second conveyor belt.

[0016] The grinder according to the embodiment of the present invention has at least the following beneficial effects: the grinder has all the beneficial effects brought by the above-mentioned PCB substrate conveying device with leveling function, which will not be repeated here.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0019] Figure 1 It is a structural schematic diagram of a PCB substrate conveying device with a leveling function according to an embodiment of the present invention;

[0020] Figure 2 It is a schematic cross-sectional structural diagram of a PCB substrate conveying device with a leveling function according to an embodiment of the present invention;

[0021] Figure 3 for Figure 2 A local enlarged schematic diagram of the middle A;

[0022] Figure 4 The figure is a schematic structural diagram of a leveling roller and a lifting drive device in a PCB substrate conveying device with a leveling function according to an embodiment of the present invention.

[0023] Reference numerals:

[0024] The first conveyor belt mechanism 100, the first conveyor belt 110, the first pressure roller 120, the rotation drive mechanism 130, the active roller 140, the driven roller 150, the second conveyor belt mechanism 200, the second conveyor belt 210, the second pressure roller 220, the leveling roller 300, the guide plate 400, the lifting drive device 500, the linear drive mechanism 510, the slide seat 520, the rotating shaft 530, the connecting rod 531, the cam 532, the mounting plate 600, the slider 610, the adjusting member 620, the elastic member 621, and the ear plate 630. DETAILED DESCRIPTION

[0025] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0026] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., the orientation or positional relationship indicated may be based on the orientation or positional relationship shown in the accompanying drawings. This is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be understood as a limitation on the present invention.

[0027] In the description of the present invention, "several" means one or more, "more" means two or more, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0028] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0029] Reference Figures 1 to 3The present invention discloses a PCB substrate conveying device with a leveling function, comprising a first conveyor belt mechanism 100, a second conveyor belt mechanism 200 and a leveling roller 300. The first conveyor belt mechanism 100 comprises a first conveyor belt 110 and a plurality of first pressing rollers 120, the first pressing rollers 120 are arranged below the first conveyor belt 110 and can press the PCB substrate on the surface of the first conveyor belt 110; the second conveyor belt mechanism 200 comprises a second conveyor belt 210 and a plurality of second pressing rollers 220, the second pressing rollers 220 are arranged above the second conveyor belt 210 and can press the PCB substrate on the surface of the second conveyor belt 210, the first conveyor belt mechanism 100 and the second conveyor belt mechanism 200 are arranged front and back, the first conveyor belt 110 and the second conveyor belt 210 are parallel to each other and staggered up and down; the leveling roller 300 is arranged below the output end of the first conveyor belt 110 and close to the input end of the second conveyor belt 210 in a manner that it can be raised and lowered, and the leveling roller 300 can adjustably press the PCB substrate on the surface of the first conveyor belt 110.

[0030] The first pressing roller 120 presses the PCB substrate onto the first conveyor belt 110. When the first conveyor belt 110 rotates, the PCB substrate can be conveyed along with the first conveyor belt 110. The PCB substrate is conveyed between the first conveyor belt 110 and the first pressing roller 120. At this time, the lower surface of the PCB substrate can be exposed to be grinded by the grinding device of the grinder. When the PCB substrate is conveyed to the area where the first conveyor belt mechanism 100 and the second conveyor belt mechanism 200 intersect, the leveling roller 300 rises to firmly press the PCB substrate against the first conveyor belt 110 to prevent the PCB substrate from bending and deforming, so that the PCB substrate can be transferred to the second conveyor belt 210 and the second pressing roller 220 in a flat state. When the PCB substrate is conveyed between the second conveyor belt 210 and the second pressing roller 220, the upper surface of the PCB substrate can be exposed to be grinded by the grinding device of the grinder.

[0031] In some embodiments of the present invention, the PCB substrate conveying device with a leveling function further includes a guide plate 400, which is disposed above the input end of the second conveyor belt 210 and in a region close to the first conveyor belt 110. When the PCB substrate is deformed and bent at the intersection between the first conveyor belt mechanism 100 and the second conveyor belt mechanism 200, the PCB substrate will abut against the guide plate 400, and the guide plate 400 will press the PCB substrate downward and guide it between the second conveyor belt 210 and the second pressing roller 220, thereby ensuring that the PCB substrate is smoothly transferred to the second conveyor belt mechanism 200.

[0032] In some embodiments of the present invention, the PCB substrate conveying device with a leveling function further includes a frame, on which the first conveyor belt mechanism 100 and the second conveyor belt mechanism 200 are arranged, and on which a lifting drive device 500 is also arranged, and the output end of the lifting drive device 500 is connected to the leveling roller 300. The frame plays a role in supporting the first conveyor belt mechanism 100, the second conveyor belt mechanism 200 and the lifting drive device 500.

[0033] See also Figure 4 The lifting drive device 500 includes two linear drive mechanisms 510 and two slides 520. The linear drive mechanisms 510 are arranged on the frame, and the two slides 520 are arranged on the frame slidably up and down. The output ends of the two linear drive mechanisms 510 are respectively connected to the two slides 520, and the leveling roller 300 is rotatably straddled on the two slides 520. The linear drive mechanism 510 drives the slide 520 to drive the leveling roller 300 to move, and the movement direction of the slide 520 is the movement direction of the leveling roller 300.

[0034] In some embodiments of the present invention, the linear drive mechanism 510 is connected to the frame through a hinge shaft, and the lifting drive device 500 further includes two rotating shafts 530 rotatably arranged on the frame, and the two ends of the rotating shaft 530 are respectively provided with a connecting rod 531 and a cam 532, and the connecting rod 531 is connected to the output end of the linear drive mechanism 510, and the slide 520 can be against the cam 532. The linear drive mechanism 510 can drive the rotating shaft 530 to rotate a certain angle through the connecting rod 531, and the cam 532 is driven to rotate when the rotating shaft 530 rotates, and the convex surface of the cam 532 abuts against the slide 520, and the cam 532 can drive the slide 520 to move in the up and down direction. The connecting rod 531, the rotating shaft 530 and the cam 532 can play the role of amplifying the torque of the linear drive mechanism 510, ensuring that the linear drive mechanism 510 can drive the slide 520 and the leveling roller 300 to approach the first conveyor belt 110.

[0035] In some embodiments of the present invention, the linear drive mechanism 510 is a cylinder, which has a simple structure, is easy to install and use, and is a common component.

[0036] In some embodiments of the present invention, a plurality of mounting plates 600 are disposed on the frame, and the first pressing roller 120 is rotatably mounted across two mounting plates 600. The first pressing roller 120 is connected to the frame through the mounting plates 600, so that the first pressing roller 120 is supported.

[0037] In some embodiments of the present invention, a slider 610 that can slide up and down is provided on the mounting plate 600, and an ear plate 630 is provided on the end of the mounting plate 600 away from the first conveyor belt 110. An adjusting member 620 is threadedly connected to the ear plate 630, and one end of the adjusting member 620 can be rested on the slider 610. The first pressure roller 120 can be rotatably straddled between the two sliders 610.

[0038] The first pressing roller 120 can easily slide up and down on the mounting plate 600 through the slider 610, ensuring that the first pressing roller 120 can push the PCB substrate onto the first conveyor belt 110. The adjusting member 620 can push the slider 610 toward the first conveyor belt 110, adjust the distance between the first pressing roller 120 and the first conveyor belt 110, and ensure that the first pressing roller 120 can push the PCB substrate tightly onto the first conveyor belt 110, so that the first conveyor belt mechanism 100 can adapt to the transportation of PCB substrates of different thicknesses.

[0039] It can be understood that the adjusting member 620 is a bolt, and a threaded hole is provided on the ear plate 630. The screw segment and the threaded hole of the adjusting member 620 cooperate with each other. By turning the adjusting member 620, the screw segment can be pressed against the slider 610, thereby driving the slider 610 and the first pressure roller 120 to approach the first conveyor belt 110.

[0040] In some embodiments of the present invention, an elastic member 621 is sleeved on the adjusting member 620, and the two ends of the elastic member 621 abut against the ear plate 630 and the slider 610 respectively. The elastic member 621 plays a buffering role between the ear plate 630 and the slider 610. When the adjusting member 620 is away from the slider 610, when the elastic member 621 is compressed, the ear plate 630 exerts a force on the slider 610 through the elastic member 621, so that the slider 610 and the first pressing roller 120 always have a tendency to move toward the first conveyor belt 110, that is, the elastic member 621 can always force the slider 610 and the first pressing roller 120 to approach the first conveyor belt 110; at the same time, because the elastic member 621 can be compressed, the first pressing roller 120 can be prevented from damaging the PCB substrate, and at this time, the adjusting member 620 plays a role in limiting the stroke of the first pressing roller 120 moving up and down. It can be foreseen that the elastic member 621 is a compression spring.

[0041] In some embodiments of the present invention, the first conveyor belt mechanism 100 also includes a rotating drive mechanism 130, an active roller 140 and a driven roller 150. The rotating drive mechanism 130, the active roller 140 and the driven roller 150 are all arranged on a frame, the first conveyor belt 110 is wound around the active roller 140 and the driven roller 150, and the output end of the rotating drive mechanism 130 is connected to the active roller 140.

[0042] The rotary drive mechanism 130 drives the active roller 140 to rotate, and the active roller 140 can drive the first conveyor belt 110 to rotate. The active roller 140 and the driven roller 150 play the role of supporting and tensioning the first conveyor belt 110.

[0043] In some embodiments of the present invention, the second conveyor belt mechanism 200 has a similar structure to the first conveyor belt mechanism 100 , and the second conveyor belt mechanism 200 is equivalent to the first conveyor belt mechanism 100 being arranged inverted.

[0044] The present invention also discloses a grinding machine, including a machine platform and the above-mentioned PCB substrate conveying device with leveling function, the PCB substrate conveying device with leveling function is arranged on the machine platform, and the machine platform is provided with grinding devices in the areas corresponding to the first conveyor belt 110 and the second conveyor belt 210.

[0045] The grinding machine has all the beneficial effects brought by the PCB substrate conveying device with leveling function in the above-mentioned embodiment, which will not be described again here.

[0046] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A PCB substrate conveying device with a leveling function, characterized in that: include: A first conveyor belt mechanism (100), the first conveyor belt mechanism (100) comprising a first conveyor belt (110) and a plurality of first pressing rollers (120), the first pressing rollers (120) being arranged below the first conveyor belt (110) and being capable of pressing a PCB substrate onto a surface of the first conveyor belt (110); a second conveyor belt mechanism (200), the second conveyor belt mechanism (200) comprising a second conveyor belt (210) and a plurality of second pressing rollers (220), the second pressing rollers (220) being arranged above the second conveyor belt (210) and being capable of pressing a PCB substrate onto a surface of the second conveyor belt (210), the first conveyor belt mechanism (100) and the second conveyor belt mechanism (200) being arranged front and back, the first conveyor belt (110) and the second conveyor belt (210) being parallel to each other and staggered in an upper and lower direction; a leveling roller (300), the leveling roller (300) being arranged below the output end of the first conveyor belt (110) and close to the input end of the second conveyor belt (210) in a liftable manner, the leveling roller (300) being adjustable to press the PCB substrate against the surface of the first conveyor belt (110); The first conveyor belt mechanism (100) and the second conveyor belt mechanism (200) are arranged on the frame, and the frame is also provided with a lifting drive device (500), the lifting drive device (500) comprises two linear drive mechanisms (510) and two slide seats (520), the linear drive mechanism (510) is connected to the frame via a hinge shaft, the two slide seats (520) are slidably arranged on the frame, the output ends of the two linear drive mechanisms (510) are respectively connected to the two slide seats (520), and the leveling roller (300) ) is rotatably straddled on the two slides (520), the lifting drive device (500) further includes two rotating shafts (530) rotatably mounted on the frame, two ends of the rotating shafts (530) are respectively provided with connecting rods (531) and cams (532), the connecting rods (531) are connected to the output end of the linear drive mechanism (510), the slide (520) can be abutted against the cams (532), a plurality of mounting plates (600) are provided on the frame, and the first pressing roller (120) is rotatably straddled on the two mounting plates (600).

2. The PCB substrate conveying device with leveling function according to claim 1, characterized in that: It also includes a guide plate (400), wherein the guide plate (400) is arranged above the input end of the second conveyor belt (210) and in an area close to the first conveyor belt (110).

3. The PCB substrate conveying device with leveling function according to claim 1 or 2, characterized in that: The mounting plate (600) is provided with a sliding block (610) that can slide up and down. The mounting plate (600) is provided with an ear plate (630) at one end away from the first conveyor belt (110). An adjusting member (620) is threadedly connected to the ear plate (630). One end of the adjusting member (620) can be abutted against the sliding block (610). The first pressure roller (120) is rotatably straddled between two sliding blocks (610).

4. The PCB substrate conveying device with leveling function according to claim 3 is characterized in that: An elastic member (621) is sleeved on the adjusting member (620), and two ends of the elastic member (621) respectively abut against the ear plate (630) and the sliding block (610).

5. The PCB substrate conveying device with leveling function according to claim 1 or 2, characterized in that: The first conveyor belt mechanism (100) further comprises a rotational drive mechanism (130), a driving roller (140) and a driven roller (150); the rotational drive mechanism (130), the driving roller (140) and the driven roller (150) are all arranged on the frame; the first conveyor belt (110) is wound around the driving roller (140) and the driven roller (150); and the output end of the rotational drive mechanism (130) is connected to the driving roller (140).

6. A grinding machine, characterized in that: The invention comprises a machine platform and a PCB substrate conveying device with a leveling function as claimed in any one of claims 1 to 5, wherein the PCB substrate conveying device with a leveling function is arranged on the machine platform, and the machine platform is provided with grinding devices in areas corresponding to the first conveyor belt (110) and the second conveyor belt (210).

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