A PCB board splitting device with low resistance

Abstract

The present invention discloses a low-resistance PCB panel splitting device, comprising a frame, and a longitudinal cylinder, a transverse cylinder, an upper blade module, a lower blade module, a transmission mechanism, an upper connecting rod mechanism, and a lower connecting rod mechanism mounted on the frame. The upper blade module and the lower blade module are mounted on the frame relative to each other in an upper and lower direction. The longitudinal cylinder is connected to the transmission mechanism for driving the transmission mechanism to move axially on the frame to synchronously drive the upper connecting rod mechanism and the lower connecting rod mechanism to rotate. The upper connecting rod mechanism is connected to the upper blade module, and the lower connecting rod mechanism is connected to the lower blade module. The transverse cylinder is connected to the upper blade module for driving the upper blade module to reach a state close to the blade, and then cut downward in an inclined state in the direction of the PCB panel splitting, so as to achieve a point cutting method for cutting the PCB panel between the upper blade module and the lower blade module. The present invention uses a point cutting method for cutting, and the resistance during the cutting process is smaller, thereby more effectively avoiding wear on the PCB panel splitting, and improving cutting efficiency and quality.

Description

Technical Field

[0001] The invention relates to the technical field of PCB board splitting machine components, in particular to a PCB board splitting low-resistance splitting device. Background Art

[0002] During the production of PCBs (or PCB substrates), PCB splitting is required. This involves cutting a single, large PCB into two separate panels. Conventional PCB splitting often involves aligning a blade vertically or horizontally, with the entire blade resting against the PCB panels and cutting linearly. This method creates significant slicing resistance, which can easily cause minor wear on the blade and the PCB panels, making it difficult to complete the split.

[0003] In addition, the existing PCB splitter or cutting device usually uses a motor or cylinder to directly drive the blade due to the driving structure of the blade. This driving structure is set up unreasonable, which can easily lead to insufficient cutting force or linear cutting of the PCB splitter, and the cutting effect is not ideal. Summary of the Invention

[0004] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a low-resistance PCB splitting device, which can solve the technical problems described in the background technology.

[0005] The technical solution for achieving the purpose of the present invention is: a low-resistance PCB splitting device, comprising a frame, and a longitudinal cylinder, a transverse cylinder, an upper knife die set, a lower knife die set, a transmission mechanism, an upper connecting rod mechanism and a lower connecting rod mechanism installed on the frame. The upper knife die set and the lower knife die set are installed on the frame relative to each other in the vertical direction. The longitudinal cylinder is connected to the transmission mechanism for driving the transmission mechanism to move axially on the frame to synchronously drive the upper connecting rod mechanism and the lower connecting rod mechanism to rotate.

[0006] The upper connecting rod mechanism is connected to the upper knife die set, and the lower connecting rod mechanism is connected to the lower knife die set. When the longitudinal cylinder drives the upper connecting rod mechanism and the lower connecting rod mechanism to rotate, the connecting rod mechanism and the upper knife die set synchronously drive the upper knife die set and the lower knife die set to move toward each other and tend to the knife closing state.

[0007] The horizontal cylinder is connected to the upper knife module, and is used to drive the upper knife module to reach the knife-closing state and then cut downward in the direction of PCB board separation in an inclined state, so as to realize the point cutting method to cut the PCB board between the upper knife module and the lower knife module.

[0008] Furthermore, in the knife-closing state, the lower blade on the lower knife module is completely attached to the PCB board.

[0009] Furthermore, the frame includes an upper plate, a middle plate, a lower plate, a bottom plate and a sliding column arranged in sequence from top to bottom, the longitudinal cylinder is fixedly installed on the upper plate, the transverse cylinder is fixedly installed on the middle plate, the two ends of the transmission mechanism are respectively connected to the upper plate and the bottom plate, the two ends of the sliding column are respectively fixed to the upper plate and the bottom plate, the middle plate and the lower plate can both slide along the sliding column, and the sliding column is parallel to the transmission mechanism.

[0010] Furthermore, the transmission mechanism includes an upper connecting rod, a connecting rod and a lower connecting rod. Through holes are dug on the upper connecting rod and the lower connecting rod. The two ends of the connecting rod are respectively slidably connected to the upper connecting rod and the lower connecting rod, so that the longitudinal cylinder drives the connecting rod to slide up and down along the axis of the frame.

[0011] The upper connecting rod is fixed on the side of the upper plate close to the bottom plate, the lower connecting rod is fixed on the side of the bottom plate close to the upper plate, and the transmission mechanism is perpendicular to the upper plate and the bottom plate.

[0012] Furthermore, both ends of the connecting rod extend into the through holes of the upper connecting rod and the lower connecting rod respectively, and the connecting rod can slide along the axial direction of the through hole, thereby realizing sliding connection between the connecting rod and the upper connecting rod and the lower connecting rod respectively.

[0013] Furthermore, the upper connecting rod mechanism includes an upper fixed connecting rod seat, an upper rotating rod, a second rotating rod and a connecting rod base. One end of the upper fixed connecting rod seat passes through the upper plate and is connected to the output shaft of the longitudinal cylinder. The upper fixed connecting rod seat is installed on one end of the upper plate close to the bottom plate and is located on one side of the upper connecting rod. The other end of the upper fixed connecting rod seat is rotatably connected to the front end of the second rotating rod, so that the second rotating rod can rotate relative to the upper fixed connecting rod seat.

[0014] The front end of the second rotating rod is fixedly connected to the end of the connecting rod extending into the through hole of the upper connecting rod, so that the second rotating rod can drive the connecting rod to move up and down in the vertical direction during rotation.

[0015] The rear ends of the second rotating rods are rotatably connected to the upper rotating rod and the connecting rod base respectively, the upper rotating rod is fixedly installed on one end of the upper plate close to the bottom plate, the upper rotating rod is rotatably connected to the second rotating rod, so that the second rotating rod can rotate relative to the upper rotating rod, one end of the connecting rod base is rotatably connected to the second rotating rod, so that the second rotating rod can rotate relative to the connecting rod base, and the other end of the connecting rod base is rotatably installed on the middle plate, so that the connecting rod base can rotate relative to the middle plate.

[0016] The middle plate and the lower plate are sleeved on several sliding columns, the other end of the upper plate away from the connecting rod base is connected to the upper knife base plate, the upper knife die set is fixedly mounted on the upper knife base plate, the upper knife die set and the upper knife base plate are arranged horizontally, the horizontal cylinder is mounted on the upper plate, the output shaft of the horizontal cylinder is connected to the upper knife connecting plate, the upper knife connecting plate is mounted on the upper plate and rotatably connected to one end of the upper knife base plate, and the other end of the upper knife base plate is also rotatably connected to the upper plate.

[0017] Furthermore, the upper knife connecting plate is installed on the upper plate and is rotatably connected to one end of the upper knife seat plate after passing through the upper plate.

[0018] Furthermore, the second rotating rod is located on one side of the upper connecting rod and remains perpendicular or substantially perpendicular to the upper connecting rod.

[0019] The top end of the lifting link is connected with the support of the lifting link, and the bottom end of the lifting link is connected with the support of the lifting link, and the other end of the lifting link is connected with the support of the lifting link.

[0020] Furthermore, the other end of the lower rotating rod is rotatably mounted on an end of the lower plate close to the bottom plate.

[0021] The beneficial effects of the present invention are as follows: the present invention realizes that the upper knife module and the lower knife module clamp the PCB in a bidirectional cutting manner through the upper connecting rod mechanism and the lower connecting rod mechanism and cooperates with the transverse cylinder, and the cutting is performed in a point cutting manner. The resistance during the cutting process is smaller, which more effectively avoids wear on the PCB board and improves the cutting efficiency and quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic structural diagram of the present invention before the knife is closed;

[0023] Figure 2 This is a front view of the present invention before the knife is closed;

[0024] Figure 3 This is a schematic structural diagram of the present invention from another perspective before the knife is closed;

[0025] Figure 4 for Figure 3 A magnified schematic diagram of point A in the middle;

[0026] Figure 5 This is a schematic diagram of the structure of the present invention after the knife is closed;

[0027] Figure 6 This is a schematic structural diagram of the present invention from another perspective after the knife is closed;

[0028] In the figure, 1-longitudinal cylinder, 2-upper plate, 3-upper fixed connecting rod seat, 4-upper connecting rod, 5-transverse cylinder, 6-middle plate, 7-connecting rod, 8-lower knife die group, 9-lower rotating rod, 10-lower plate, 11-first rotating rod, 12-lower connecting rod, 13-bottom plate, 14-lower fixed connecting rod seat, 15-upper knife die group, 16-upper knife seat plate, 17-upper knife connecting plate, 18-upper rotating rod, 19-second rotating rod, 20-connecting rod base. DETAILED DESCRIPTION

[0029] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0030] like Figures 1 to 6 As shown, a PCB board splitting device with low resistance comprises a frame, and a longitudinal cylinder 1, a transverse cylinder 5, an upper knife die set 15, a lower knife die set 8, a transmission mechanism, an upper connecting rod 4 mechanism and a lower connecting rod 12 mechanism installed on the frame. The upper knife die set 15 and the lower knife die set 8 are installed on the frame relative to each other up and down. The longitudinal cylinder 1 is connected to the transmission mechanism for driving the transmission mechanism to move axially on the frame, that is, to move along the vertical direction of the frame, so as to synchronously drive the upper connecting rod 4 mechanism and the lower connecting rod 12 mechanism to rotate. During the rotation driven by the longitudinal cylinder 1, the upper connecting rod 4 mechanism and the lower connecting rod 12 mechanism are respectively The upper knife module 15 and the lower knife module 8 are synchronously driven to move in a straight line toward each other, so that the upper knife module 15 and the lower knife module 8, which were originally separated, are close to each other and approach the knife-closed state. The transverse cylinder 5 is used to drive the upper blade on the upper knife module 15 to cut downward in the direction of the PCB board in an inclined state, so as to realize the point cutting method of cutting the PCB board between the upper knife module 15 and the lower knife module 8, that is, the upper blade on the upper knife module 15 cuts downward at a slight angle to the PCB board, rather than the linear cutting in which the upper blade is completely flat on the PCB board and then cuts downward, thereby realizing the point cutting method of cutting the PCB board. Among them, the lower blade on the lower knife module 8 is completely fitted on the PCB board, so that when the upper and lower blades are cutting by clamping the PCB, the lower blade can be well stressed on the PCB board, that is, it can well support the PCB board, which is more conducive to cutting.

[0031] The frame includes an upper plate 2, a middle plate 6, a lower plate 10, and a bottom plate 13, which are spaced apart from each other from top to bottom. The longitudinal cylinder 1 is fixedly mounted on the upper plate 2, and the transverse cylinder 5 is fixedly mounted on the middle plate 6. The two ends of the transmission mechanism are respectively connected to the upper plate 2 and the bottom plate 13.

[0032] The transmission mechanism includes an upper connecting rod 4, a connecting rod 7 and a lower connecting rod 12. Through holes are dug on the upper connecting rod 4 and the lower connecting rod 12. The two ends of the connecting rod 7 extend into the through holes of the upper connecting rod 4 and the lower connecting rod 12 respectively. The connecting rod 7 can slide axially along the through holes, so that the longitudinal cylinder 1 drives the connecting rod 7 to slide up and down along the axis of the frame, that is, to drive the transmission mechanism to slide up and down along the axis of the frame.

[0033] The upper connecting rod 4 is fixed to the side of the upper plate 2 close to the bottom plate 13, and the lower connecting rod 12 is fixed to the side of the bottom plate 13 close to the upper plate 2, so that the entire transmission mechanism is between the upper plate 2 and the bottom plate 13, and the transmission mechanism is perpendicular to the upper plate 2 and the bottom plate 13, that is, the transmission mechanism is arranged on the frame along the axial direction of the frame.

[0034] The upper connecting rod 4 mechanism includes an upper fixed connecting rod seat 3, an upper rotating rod 18, a second rotating rod 19, and a connecting rod base 20. One end of the upper fixed connecting rod seat 3 passes through the upper plate 2 and is connected to the output shaft of the longitudinal cylinder 1. The upper fixed connecting rod seat 3 is installed at one end of the upper plate 2 close to the bottom plate 13 and is located on one side of the upper connecting rod 4. The other end of the upper fixed connecting rod seat 3 is rotatably connected to the front end of the second rotating rod 19, so that the second rotating rod 19 can rotate relative to the upper fixed connecting rod seat 3. The front end of the second rotating rod 19 is fixedly connected to the end of the connecting rod 7 extending into the through hole of the upper connecting rod 4, so that the second rotating rod 19 can drive the connecting rod 7 to move up and down in the vertical direction during rotation. The rear end of the second rotating rod 19 is rotatably connected to the upper rotating rod 18 and the connecting rod base 20. The upper rotating rod 18 is fixedly mounted on the end of the upper plate 2 near the bottom plate 13. The upper rotating rod 18 is rotatably connected to the second rotating rod 19, allowing the second rotating rod 19 to rotate relative to the upper rotating rod 18. One end of the connecting rod base 20 is rotatably connected to the second rotating rod 19, allowing the second rotating rod 19 to rotate relative to the connecting rod base 20. The other end of the connecting rod base 20 is rotatably mounted on the middle plate 6, allowing the connecting rod base 20 to rotate relative to the middle plate 6. The second rotating rod 19 is located on one side of the upper connecting rod 4 and remains perpendicular or substantially perpendicular to the upper connecting rod 4.

[0035] The middle plate 6 and the lower plate 10 are mounted on a number of sliding columns (not shown in the figure), the two ends of which are fixed on the upper plate 2 and the bottom plate 13 respectively. The middle plate 6 and the lower plate 10 can slide along the sliding columns, and the sliding columns are parallel to the connecting rod 7, that is, the sliding columns and the transmission mechanism are parallel and vertically installed on the upper plate 2 and the bottom plate 13.

[0036] The other end of the upper plate 2, away from the connecting rod base 20, is connected to the upper knife seat plate 16. The upper knife die set 15 is fixedly mounted on the upper knife seat plate 16. The upper knife die set 15 and the upper knife seat plate 16 are arranged transversely, that is, along the length of the middle plate 6. The transverse cylinder 5 is mounted on the upper plate 2. The output shaft of the transverse cylinder 5 is connected to the upper knife connecting plate 17. The upper knife connecting plate 17 is mounted on the upper plate 2 and passes through the upper plate 2. It is rotatably connected to one end of the upper knife seat plate 16. The other end of the upper knife seat plate 16 is also rotatably connected to the upper plate 2.

[0037] The lower connecting rod 12 mechanism includes a lower rotating rod 9, a first rotating rod 11, and a lower fixed connecting rod seat 14. One end of the lower fixed connecting rod seat 14 is fixedly mounted on the end of the bottom plate 13 near the upper plate 2. The other end of the lower fixed connecting rod seat 14 is rotationally connected to one side of the rear end of the first rotating rod 11. The other side of the rear end of the first rotating rod 11 is rotationally connected to one end of the lower rotating rod 9. The lower rotating rod 9 and the lower fixed connecting rod seat 14 are arranged opposite each other. The front end of the first rotating rod 11 is fixedly connected to the end of the connecting rod 7 extending into the through hole of the lower connecting rod 12. The other end of the lower rotating rod 9 is rotationally mounted on the end of the lower plate 10 near the bottom plate 13. The upper knife die assembly 15 is fixedly mounted on the other end of the lower plate 10.

[0038] During actual use, when the longitudinal cylinder 1 is pushed toward the middle plate 6, the second rotating rod 19 is driven to rotate downward through the upper fixed connecting rod seat 3, and the front end of the second rotating rod 19 drives the connecting rod 7 to move vertically downward, and the rear end of the second rotating rod 19 rotates relative to the upper rotating rod 18 and the connecting rod base 20, and due to the downward pressure, the connecting rod base 20 is driven to rotate downward and obliquely away from the upper connecting rod 4, thereby driving the middle plate 6 to move downward, thereby driving the upper knife module 15 to move downward as a whole.

[0039] Synchronously, during the downward movement of the connecting rod 7, the first rotating rod 11 is pressed downward and moved obliquely downward toward the bottom plate 13, and the rear end of the first rotating rod 11 rotates relative to the lower rotating rod 9 and the lower fixed connecting rod seat 14, and due to the downward pressure on the first rotating rod 11. The force is transmitted to the lower rotating rod, causing the lower rotating rod 9 to rotate obliquely upward in the direction away from the connecting rod 7, thereby driving the lower plate 10 to move upward, thereby causing the lower knife die group 8 to move toward the upper knife die group 15, so that the upper knife die group 15 and the lower knife die group 8 both move toward each other and approach each other and tend to reach the knife-closed state.

[0040] Because the blades on the upper blade module 15 are tilted, when the upper blade module 15 reaches its lowest position, a portion of the upper blade module 15 near the connecting rod 7 has already made contact with the PCB splitter, while the other end has not yet made contact with the PCB splitter, thereby enabling the PCB splitter to be cut in a spot-cutting manner. Furthermore, the upper blade connecting plate 17 is pulled toward the connecting rod 7 by the transverse cylinder 5, and the upper connecting plate rotates relative to the upper blade base plate 16, causing the other end of the upper blade module 15 connected to the upper blade base plate 16 to rotate downwardly at an angle, thereby enabling the blades on the upper blade module 15 to cut the PCB in a downwardly tilted manner, achieving spot-cutting.

[0041] When it is necessary to separate the upper knife module 15 and the lower knife module 8 from the knife-closed state, it is only necessary to drive the longitudinal cylinder 1 and the transverse cylinder 5 in the direction, that is, the longitudinal cylinder 1 pulls the connecting rod 7 upward, and the transverse cylinder 5 drives the upper knife connecting plate 17 to move away from the connecting rod 7. This can be achieved because it is only the reverse process of the above process, so it will not be repeated here.

[0042] The present invention uses the upper connecting rod 4 mechanism and the lower connecting rod 12 mechanism in conjunction with the transverse cylinder 5 to achieve bidirectional cutting by the upper knife module 15 and the lower knife module 8 in a clamping PCB manner, and cuts in a point cutting manner. The resistance during the cutting process is smaller, which more effectively avoids wear on the PCB board and improves the cutting efficiency and quality.

[0043] The embodiment disclosed in this specification is merely an illustration of one aspect of the present invention. The scope of protection of the present invention is not limited to this embodiment. Any other functionally equivalent embodiments fall within the scope of protection of the present invention. Those skilled in the art can make various other corresponding changes and modifications based on the technical solutions and concepts described above, and all such changes and modifications should fall within the scope of protection of the claims of the present invention.

Claims

1. A PCB board splitting device with low resistance, characterized in that: It includes a frame, and a longitudinal cylinder, a transverse cylinder, an upper knife die set, a lower knife die set, a transmission mechanism, an upper connecting rod mechanism and a lower connecting rod mechanism installed on the frame. The upper knife die set and the lower knife die set are installed on the frame relative to each other. The longitudinal cylinder is connected to the transmission mechanism for driving the transmission mechanism to move axially on the frame to synchronously drive the upper connecting rod mechanism and the lower connecting rod mechanism to rotate. The upper connecting rod mechanism is connected to the upper knife die set, and the lower connecting rod mechanism is connected to the lower knife die set. When the longitudinal cylinder drives the upper connecting rod mechanism and the lower connecting rod mechanism to rotate, the connecting rod mechanism and the upper knife die set synchronously drive the upper knife die set and the lower knife die set to move toward each other and tend to the knife closing state. The horizontal cylinder is connected to the upper knife module, which is used to drive the upper knife module to reach the knife-closing state and then cut downward in the direction of PCB board separation in an inclined state, so as to realize the point cutting method to cut the PCB board between the upper knife module and the lower knife module. The frame includes an upper plate, a middle plate, a lower plate, a bottom plate and a sliding column which are sequentially arranged from top to bottom. The longitudinal cylinder is fixedly mounted on the upper plate, the transverse cylinder is fixedly mounted on the middle plate, the two ends of the transmission mechanism are respectively connected to the upper plate and the bottom plate, the two ends of the sliding column are respectively fixed to the upper plate and the bottom plate, the middle plate and the lower plate can slide along the sliding column, and the sliding column is parallel to the transmission mechanism. The transmission mechanism includes an upper connecting rod, a connecting rod and a lower connecting rod. Through holes are dug on the upper connecting rod and the lower connecting rod. The two ends of the connecting rod are slidably connected to the upper connecting rod and the lower connecting rod respectively, so that the longitudinal cylinder drives the connecting rod to slide up and down along the axis of the frame. The upper connecting rod is fixed on the side of the upper plate close to the bottom plate, and the lower connecting rod is fixed on the side of the bottom plate close to the upper plate. The transmission mechanism is perpendicular to the upper plate and the bottom plate. The upper connecting rod mechanism includes an upper fixed connecting rod seat, an upper rotating rod, a second rotating rod and a connecting rod base, one end of the upper fixed connecting rod seat is connected to the output shaft of the longitudinal cylinder after passing through the upper plate, the upper fixed connecting rod seat is installed on one end of the upper plate close to the bottom plate and is located on one side of the upper connecting rod, and the other end of the upper fixed connecting rod seat is rotatably connected to the front end portion of the second rotating rod, so that the second rotating rod can rotate relative to the upper fixed connecting rod seat. The front end of the second rotating rod is fixedly connected to the end of the connecting rod extending into the through hole of the upper connecting rod, so that the second rotating rod can drive the connecting rod to move up and down in the vertical direction during rotation. The rear ends of the second rotating rods are rotatably connected to the upper rotating rod and the connecting rod base respectively, the upper rotating rod is fixedly installed on one end of the upper plate close to the bottom plate, the upper rotating rod is rotatably connected to the second rotating rod, so that the second rotating rod can rotate relative to the upper rotating rod, one end of the connecting rod base is rotatably connected to the second rotating rod, so that the second rotating rod can rotate relative to the connecting rod base, and the other end of the connecting rod base is rotatably installed on the middle plate, so that the connecting rod base can rotate relative to the middle plate. The middle plate and the lower plate are sleeved on several sliding columns, the other end of the upper plate away from the connecting rod base is connected to the upper knife base plate, the upper knife die set is fixedly mounted on the upper knife base plate, the upper knife die set and the upper knife base plate are arranged horizontally, the horizontal cylinder is mounted on the upper plate, the output shaft of the horizontal cylinder is connected to the upper knife connecting plate, the upper knife connecting plate is mounted on the upper plate and rotatably connected to one end of the upper knife base plate, and the other end of the upper knife base plate is also rotatably connected to the upper plate.

2. The PCB board splitting device with low resistance according to claim 1, characterized in that: In the knife-closing state, the lower blade on the lower knife module is completely attached to the PCB board.

3. The PCB board splitting device with low resistance according to claim 1, characterized in that: The two ends of the connecting rod extend into the through holes of the upper connecting rod and the lower connecting rod respectively, and the connecting rod can slide along the axial direction of the through hole, thereby realizing sliding connection between the connecting rod and the upper connecting rod and the lower connecting rod respectively.

4. The PCB board splitting device with low resistance according to claim 1, characterized in that: The upper knife connecting plate is installed on the upper plate and is rotatably connected with one end of the upper knife seat plate after passing through the upper plate.

5. The PCB board splitting device with low resistance according to claim 4, characterized in that: The second rotating rod is located at one side of the upper connecting rod and is kept perpendicular or substantially perpendicular to the upper connecting rod.

6. The low-resistance PCB splitting device according to claim 5, characterized in that: The top end of the lifting link is connected with the first end of the lifting link, and the bottom end of the lifting link is connected with the first end of the lifting link, and the second end of the lifting link is connected with the first end of the lifting link.

7. The low-resistance PCB splitting device according to claim 6, characterized in that: The other end of the lower rotating rod is rotatably mounted on one end of the lower layer plate close to the bottom layer plate.

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