CBM ultra-thin plate belt grinding machine

Abstract

The utility model discloses a CBM ultrathin plate belt grinding machine which comprises a feeding mechanism, a conveying mechanism arranged at the rear end of the feeding mechanism, a grinding and brushing mechanism attached to the conveying mechanism and a discharging mechanism arranged at the rear end of the conveying mechanism. Pressing shafts are arranged between the feeding mechanism and the conveying mechanism and between the conveying mechanism and the discharging mechanism, and the pressing shafts are attached to the conveying face of the conveying mechanism. When the PCB is moved to the edge of the conveying mechanism from the feeding mechanism, the PCB is inserted between the conveying mechanism and the pressing shaft, the conveying mechanism pulls the PCB forwards, so that the PCB is conveyed to the grinding and brushing mechanism to grind and process the surface of the PCB, the pressing shaft provides support for the PCB, and the PCB is conveyed to the grinding and brushing mechanism to grind and process the surface of the PCB. The situation that the ultra-thin plate warps under the condition that one side of the ultra-thin plate is not supported, and consequently the follow-up feeding and machining effect is affected is avoided, and the stability of the machining process is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of printed circuit board processing equipment, in particular to a CBM ultra-thin plate belt grinding machine. Background Art

[0002] In the curtain wall market, during the processing of printed circuit boards, the PCB circuit boards need to be ground to obtain a smooth PCB board surface. The general grinding equipment is a belt grinding equipment with upper and lower distributions. In traditional double-sided belt grinding equipment, there is a certain distance between the upper and lower grinding brushes and the edges of the upper and lower belts. Therefore, before the PCB board enters and exits the belt, it is easy for one side to have no support, resulting in the edge of the board being lifted, which affects the grinding effect of the PCB board.

[0003] Therefore, the prior art has defects and needs to be improved. Utility Model Content

[0004] The utility model aims to overcome the deficiencies of the prior art and provide a CBM ultra-thin plate belt grinding machine.

[0005] The technical solution of the utility model is as follows: a CBM ultra-thin plate belt grinding machine is provided, comprising: a feeding mechanism, a conveying mechanism arranged at the rear end of the feeding mechanism, a grinding brush mechanism attached to the conveying mechanism, and a discharging mechanism arranged at the rear end of the conveying mechanism, a clamping shaft is arranged between the feeding mechanism and the conveying mechanism and between the conveying mechanism and the discharging mechanism, and the clamping shaft is attached to the conveying surface of the conveying mechanism.

[0006] Furthermore, the conveying mechanism is divided into an upper conveying end and a lower conveying end, and the brushing mechanism is divided into an upper brushing end and a lower brushing end. The upper conveying end is fitted with the lower brushing end, and the lower conveying end is fitted with the upper brushing end.

[0007] Furthermore, a transition brush is provided at the junction of the upper conveying end and the lower conveying end, and the transition brush is attached to the upper conveying end or the lower conveying end at the front end.

[0008] Furthermore, a transition brush is provided at the junction of the feeding mechanism and / or the discharging mechanism and the conveying mechanism, and the transition brush is provided beside the pressing shaft, and the transition brush is closely attached to the conveying mechanism.

[0009] Furthermore, a bridge structure is provided at the junction of the feeding mechanism and / or the discharging mechanism and the conveying mechanism.

[0010] Furthermore, the conveying mechanism includes: a conveying frame, a driving shaft arranged at one end of the conveying frame, a tensioning mechanism arranged at the other end of the conveying frame, a passive shaft arranged on the tensioning mechanism, a guide plate arranged on the conveying frame, and a plurality of steel rollers, belts are sleeved on the driving shaft and the passive shaft, guide grooves are arranged on the guide plates, positioning strips are arranged on the belts corresponding to the guide grooves, and the positioning strips are embedded in the guide grooves.

[0011] Furthermore, the brush mechanism includes: a swing mechanism, a swing bracket arranged on the output end of the swing mechanism, a brush shaft passing through the swing bracket, a transmission mechanism arranged at one end of the brush shaft, a power motor connected to the transmission mechanism, a brush sleeved on the brush shaft, and a sliding bracket arranged at the other end of the brush shaft, the swing mechanism drives one end of the brush shaft to swing, the power motor drives the brush shaft to rotate through the transmission mechanism, and the transmission mechanism adopts a pulley transmission mechanism.

[0012] Furthermore, the swing mechanism includes: a swing motor, a transmission gear set arranged on the output end of the swing motor, and a swing arm connected to the output end of the transmission gear set, the swing arm is connected to the swing bracket, and the output end of the gear set is eccentrically arranged on the swing arm.

[0013] Furthermore, the utility model also includes a spray mechanism, which is arranged beside the conveying mechanism and the brushing mechanism.

[0014] By adopting the above scheme, the utility model inserts the PCB board between the conveying mechanism and the clamping shaft when the PCB board moves from the feeding mechanism to the edge of the conveying mechanism, pulls the PCB board forward through the conveying mechanism, and thus transports the PCB board to the grinding brush mechanism to grind the surface of the PCB board. The clamping shaft provides support for the PCB board to avoid warping of the ultra-thin board when one side is not supported, thereby affecting the subsequent feeding and processing effects, and effectively improves the stability of the processing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the utility model.

[0016] Figure 2 It is a cross-sectional schematic diagram of the utility model.

[0017] Figure 3 It is a structural diagram of the conveying mechanism.

[0018] Figure 4 Schematic diagram of the internal structure of the conveying mechanism.

[0019] Figure 5 It is a structural diagram of the brush mechanism. DETAILED DESCRIPTION

[0020] The present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0021] See also Figure 1 , Figure 2 The utility model provides a CBM ultra-thin plate belt grinding machine, comprising: a feeding mechanism, a conveying mechanism 1 arranged at the rear end of the feeding mechanism, a grinding brush mechanism 2 attached to the conveying mechanism 1, and a discharging mechanism arranged at the rear end of the conveying mechanism 1, a clamping shaft 3 is arranged between the feeding mechanism and the conveying mechanism 1 and between the conveying mechanism 1 and the discharging mechanism, and the clamping shaft 3 is attached to the conveying surface of the conveying mechanism 2.

[0022] When it is necessary to grind the upper and lower surfaces of the PCB board, place the PCB board on the feeding mechanism for transportation. After the feeding mechanism measures the thickness of the PCB board, the ultra-thin board that meets the thickness requirement is fed into the conveying mechanism 1 for transportation, and when it moves to the grinding and brushing mechanism 2, the upper and lower surfaces of the PCB board are grinded in sequence by the grinding and brushing mechanism 2. After the grinding process is completed, the PCB board is transported to the discharging mechanism and sent out. When the PCB board moves from the feeding mechanism to the edge of the conveying mechanism 1, it will be inserted between the conveying mechanism 1 and the clamping shaft 3, and the PCB board will be pulled forward by the conveying mechanism 1, so that the PCB board is transported to the grinding and brushing mechanism 2 to grind the surface of the PCB board, so as to avoid warping of the ultra-thin board when one side is not supported, thereby affecting the subsequent feeding and processing effects, and effectively improving the stability of the processing process.

[0023] The conveying mechanism 1 is divided into an upper conveying end 101 and a lower conveying end 102, and the grinding brush mechanism 2 is divided into an upper grinding brush end 201 and a lower grinding brush end 202. The upper conveying end 101 is in contact with the lower grinding brush end 202, and the lower conveying end 102 is in contact with the upper grinding brush end 201. In the embodiment provided by the utility model, after the PCB board is transported by the feeding mechanism, it is first transported through the upper conveying end 101, and the lower surface of the PCB board is ground through the lower grinding brush end 202 to ensure the flatness of the lower surface of the PCB board. Then the PCB board moves to the lower conveying end 102, and the upper surface of the PCB board is ground through the upper grinding brush end 201 to ensure the flatness of the upper surface of the PCB board, thereby realizing the grinding of the upper and lower surfaces of the PCB board.

[0024] In some embodiments, a transition brush 4 is provided at the junction of the upper conveying end 101 and the lower conveying end 102, and the transition brush 4 is attached to the upper conveying end 101 or the lower conveying end 102 at the front end. When the PCB board moves from the upper conveying end 101 to the lower conveying end 102, it is guided by the transition brush 4, so that the PCB board is conveniently guided to the gap between the upper conveying end 101 and the lower conveying end 102 for transportation, so as to avoid warping or deviation of the front end of the PCB board, which affects the feeding and even causes damage to the PCB board. The use of a transition brush can avoid scratching the surface of the PCB board during contact with the PCB board.

[0025] In some embodiments, a transition brush 4 is provided at the joint of the feed mechanism and / or the discharge mechanism and the conveying mechanism 1, and the transition brush 4 is provided beside the clamping shaft 3, and the transition brush 4 is closely attached to the conveying mechanism 1. When the PCB board moves from the feed mechanism to the conveying mechanism 1, the transition brush 4 is used for guidance, so that the PCB board is conveniently guided to between the conveying mechanism 1 and the clamping shaft 3, thereby avoiding warping or deviation of the PCB board, and preventing the surface of the PCB board from being scratched or bruised due to rigid collision during the process from the feed mechanism to the conveying mechanism 1, or from the conveying mechanism 1 to the discharge mechanism.

[0026] A bridge structure is provided at the joint of the feeding mechanism and / or the discharging mechanism and the conveying mechanism 1, so that the process of the PCB board moving from the feeding mechanism to the conveying mechanism, or from the conveying mechanism 1 to the discharging mechanism is smoother and more reliable.

[0027] See also Figure 3 , Figure 4 The conveying mechanism 1 comprises: a conveying frame 11, a driving shaft 12 arranged at one end of the conveying frame 11, a tensioning mechanism 13 arranged at the other end of the conveying frame 11, a passive shaft 14 arranged on the tensioning mechanism 13, a guide plate 15 arranged on the conveying frame 11, and a plurality of steel rollers 16. A belt 17 is sleeved on the driving shaft 12 and the passive shaft 14, a guide groove 151 is arranged on the guide plate 15, and a positioning bar is arranged on the belt 17 corresponding to the guide groove 151, and the positioning bar is embedded in the guide groove 151. The tensioning mechanism 13 is movably arranged on the conveying frame 11, and can be stretched in a direction away from the conveying frame 11, so as to adjust the distance between the passive shaft 14 and the driving shaft 12, thereby tightening the belt 17 and increasing the tension of the belt 17. Compared with the conveying method of rollers or conveying wheels, the use of the belt 17 for transmission can ensure that there is no gap in the conveying process, and the PCB board can be transported stably and effectively, thereby meeting the requirements of grinding work.

[0028] See also Figure 5The brush mechanism 2 includes: a swing mechanism 21, a swing bracket 22 arranged on the output end of the swing mechanism 21, a brush shaft 23 passing through the swing bracket 22, a transmission mechanism 24 arranged at one end of the brush shaft 23, a power motor connected to the transmission mechanism 24, a brush 25 sleeved on the brush shaft 23, and a sliding bracket 26 arranged at the other end of the brush shaft 23. The swing mechanism 21 drives one end of the brush shaft 23 to swing, and the power motor drives the brush shaft 23 to rotate through the transmission mechanism 24. The transmission mechanism 24 adopts a pulley transmission mechanism. The brush shaft 23 is driven by the swing mechanism 21 to swing back and forth along the sliding bracket 26, so that the PCB board is longitudinally ground by the rotation of the brush 25, and the PCB board is horizontally ground by the swinging action, thereby effectively improving the grinding effect.

[0029] The swing mechanism 21 includes: a swing motor 211, a transmission gear set 212 disposed on the output end of the swing motor 211, and a swing arm 213 connected to the output end of the transmission gear set 212, wherein the swing arm 213 is connected to the swing bracket 22, and the output end of the gear set 212 is eccentrically disposed on the swing arm 213. When the swing motor 211 is started, the transmission gear set 212 drives the swing arm 213 to swing eccentrically, and pulls the swing bracket 22 to move left and right along the direction of the guide rail, thereby meeting the requirement of moving the grinding brush 25 in the left and right directions, thereby grinding the surface of the PCB board in the left and right directions, and effectively improving the grinding effect on the surface of the PCB board.

[0030] The utility model further comprises a spray mechanism 5, which is arranged beside the conveying mechanism 1 and the grinding and brushing mechanism 2. When the grinding and brushing mechanism 2 grinds the PCB board, debris will be raised and a large amount of heat will be generated on the surface of the PCB. The spray mechanism 5 sprays the protective liquid in the direction of the PCB board, thereby cooling the surface of the PCB board to avoid the accumulated high temperature from causing burns to the surface of the PCB board. At the same time, the raised debris will increase the overall weight due to the adhesion of water under the spraying of the spray mechanism 5, thereby accelerating the falling and gathering in the recovery tank at the bottom of the equipment for unified recovery and treatment.

[0031] In summary, the utility model inserts the PCB board between the conveying mechanism and the clamping shaft when the PCB board moves from the feeding mechanism to the edge of the conveying mechanism, and pulls the PCB board forward through the conveying mechanism, thereby transporting the PCB board to the grinding brush mechanism to grind the surface of the PCB board. The clamping shaft provides support for the PCB board to avoid warping of the ultra-thin board when one side is not supported, thereby affecting the subsequent feeding and processing effects, and effectively improving the stability of the processing process.

[0032] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A CBM ultra-thin plate belt grinding machine, characterized in that: include: A feeding mechanism, a conveying mechanism arranged at the rear end of the feeding mechanism, a brushing mechanism attached to the conveying mechanism, and a discharging mechanism arranged at the rear end of the conveying mechanism, a clamping shaft is arranged between the feeding mechanism and the conveying mechanism and between the conveying mechanism and the discharging mechanism, and the clamping shaft is attached to the conveying surface of the conveying mechanism.

2. The CBM ultra-thin plate belt grinding machine according to claim 1, characterized in that: The conveying mechanism is divided into an upper conveying end and a lower conveying end, and the brushing mechanism is divided into an upper brushing end and a lower brushing end. The upper conveying end is fitted with the lower brushing end, and the lower conveying end is fitted with the upper brushing end.

3. The CBM ultra-thin plate belt grinding machine according to claim 2, characterized in that: A transition brush is arranged at the junction of the upper conveying end and the lower conveying end, and the transition brush is attached to the upper conveying end or the lower conveying end at the front end.

4. The CBM ultra-thin plate belt grinding machine according to claim 1, characterized in that: A transition brush is arranged at the joint of the feeding mechanism and / or the discharging mechanism and the conveying mechanism. The transition brush is arranged beside the pressing shaft and is closely attached to the conveying mechanism.

5. The CBM ultra-thin plate belt grinding machine according to claim 1, characterized in that: A bridge structure is provided at the junction of the feeding mechanism and / or the discharging mechanism and the conveying mechanism.

6. The CBM ultra-thin plate belt grinding machine according to claim 1, characterized in that: The conveying mechanism includes: a conveying frame, a driving shaft arranged at one end of the conveying frame, a tensioning mechanism arranged at the other end of the conveying frame, a passive shaft arranged on the tensioning mechanism, a guide plate arranged on the conveying frame and a plurality of steel rollers, belts are sleeved on the driving shaft and the passive shaft, guide grooves are arranged on the guide plates, positioning strips are arranged on the belts corresponding to the guide grooves, and the positioning strips are embedded in the guide grooves.

7. The CBM ultra-thin plate belt grinding machine according to claim 1, characterized in that: The brush mechanism includes: a swing mechanism, a swing bracket arranged on the output end of the swing mechanism, a brush shaft passing through the swing bracket, a transmission mechanism arranged at one end of the brush shaft, a power motor connected to the transmission mechanism, a brush sleeved on the brush shaft, and a sliding bracket arranged at the other end of the brush shaft. The swing mechanism drives one end of the brush shaft to swing, and the power motor drives the brush shaft to rotate through the transmission mechanism. The transmission mechanism adopts a pulley transmission mechanism.

8. The CBM ultra-thin plate belt grinding machine according to claim 7, characterized in that: The swing mechanism includes: a swing motor, a transmission gear set arranged on the output end of the swing motor, and a swing arm connected to the output end of the transmission gear set, the swing arm is connected to the swing bracket, and the output end of the gear set is eccentrically arranged on the swing arm.

9. The CBM ultra-thin plate belt grinding machine according to claim 1, characterized in that: It also includes a spray mechanism, which is arranged beside the conveying mechanism and the brushing mechanism.

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