Flexible PCB manufacturing, cutting and edging integrated equipment

The integrated cutting and edge grinding equipment for flexible PCB manufacturing solves the problems of dust handling and inaccurate edge grinding during the cutting process of flexible PCB by combining the clamping part and the edge grinding part. It achieves precise cutting and efficient edge grinding, and improves the processing accuracy.

CN121888477APending Publication Date: 2026-04-17JIANGXI HEYING CIRCUIT CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
JIANGXI HEYING CIRCUIT CO LTD
Filing Date
2023-08-28
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

Existing technologies are insufficient to effectively address the dust and debris issues generated during the cutting process of flexible PCBs. Furthermore, the cutting process suffers from inaccurate edge grinding and reduced processing precision due to wrinkles in the flexible PCBs.

Method used

An integrated cutting and edge-grinding device for flexible PCB board manufacturing is adopted. The clamping part accurately positions and flattens the flexible PCB board. The combined use of the edge-grinding part and the cutting part ensures that there are no burrs on the cut edge. The extrusion part and the wedge block work together to flatten the wrinkled parts, achieving accurate positioning and stable clamping.

Benefits of technology

It achieves precise cutting and efficient edge grinding of flexible PCB boards, avoiding the problems of shaking and inaccurate edge grinding during the cutting process, and improving the processing accuracy and the smoothness of the cut edges.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of PCB cutting and edging, in particular to flexible PCB manufacturing, cutting and edging integrated equipment which comprises a bottom plate and a shell, the bottom plate is in a T shape, a moving working part is fixed to the front end of the bottom plate through a supporting plate and located on the front side of the shell, and a clamping part is connected to the top of the bottom plate and located in the shell. An extrusion part is fixed to the bottom of the upper end of the shell and located on the upper side of the clamping part. According to the flexible PCB edge grinding device, the extrusion part and the clamping part are used in cooperation, the middle wrinkled part of the flexible PCB can be leveled, and therefore the situation that cutting and edge grinding are difficult due to middle wrinkles of the flexible PCB is avoided; the part, longer than the upper clamping block and the lower clamping block, of the flexible PCB can be stretched and flattened, and the flexible PCB is pressed and bundled to a certain extent after being stretched and flattened, so that the situation that the flexible PCB shakes in the cutting and edge grinding process, and consequently the shape of the flexible PCB changes is prevented.
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Description

Technical Field

[0001] This invention relates to the field of PCB board cutting and edge grinding technology, specifically an integrated equipment for manufacturing, cutting, and edge grinding of flexible PCB boards. Background Technology

[0002] Flexible PCBs are a special type of circuit board that can be bent into the desired shape for any application. Compared to ordinary rigid circuit boards, this type of board places conductive paths and electrical components on a flexible substrate. With the continuous development of electronic products, more and more companies are starting to use flexible PCBs. Flexible PCBs are widely used in wearable devices, smartphones, tablets, and other electronic products. Therefore, the demand for cutting flexible PCBs from large boards into smaller ones after manufacturing is increasing, but the problem of handling dust and debris generated during the cutting process is difficult to solve.

[0003] To address the aforementioned issues, utility model patent CN212554169U discloses a PCB board cutting system. This technical solution automatically removes cutting chips and dust adhering to the cut PCB board using a chip hopper, suction pipe, and vacuum cleaner.

[0004] While the above solution can cut the PCB board and remove cutting chips and dust, it cannot address the wrinkles present in flexible PCB boards, thus reducing processing accuracy. Furthermore, the cut flexible PCB board is prone to burrs on the sides, requiring edge grinding, but the characteristics of flexible PCB boards make edge grinding a challenge. Summary of the Invention

[0005] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is: a flexible PCB board manufacturing, cutting and edge grinding integrated equipment, including a base plate and a shell. The base plate is T-shaped. A moving working part is fixed to the front end of the base plate through a support plate. The moving working part is located on the front side of the shell. A clamping part is connected to the top of the base plate and inside the shell. A pressing part is fixed to the bottom of the upper end of the shell. The pressing part is located on the upper side of the clamping part.

[0006] The motion working part includes multiple electric push rods fixed to the rear end of the support plate. A grinding part is fixed to the rear end of the multiple electric push rods, and a cutting part is fixed to the rear end of the grinding part through a connecting plate.

[0007] The lower part of the left and right side walls of the outer shell is symmetrically provided with square openings; the left and right sides of the base plate are symmetrically provided with T-slots; the clamping part includes two T-blocks symmetrically arranged in the T-slots of the base plate, the T-blocks are slidably fitted with the base plate, each T-block has a tension spring connected to the side wall of the T-slot at the end away from the axis of symmetry of the T-slot, each T-block has a lower clamping block fixed at the top, and multiple fixing pins are symmetrically fixed at the front and rear ends of the lower clamping block, each fixing pin has a sliding sleeve slidably connected to the upper part, and an upper clamping block corresponding to the lower clamping block is fixed between the sliding sleeves, and the end of each upper clamping block away from the axis of symmetry of the T-slot abuts against the side wall above the corresponding square opening of the outer shell.

[0008] Lower support plates are symmetrically fixed on both sides of the lower clamping block and below the fixing pin. Upper support plates are fixed on both sides of the upper clamping block and at positions corresponding to the lower support plates. The lower support plates and the upper support plates at corresponding positions are connected by a return spring. The return spring is used to restore the upper clamping block to its original position after cutting and grinding.

[0009] Preferably, the two upper clamping blocks are symmetrically provided with inclined blocks near the extrusion part at their tops; the extrusion part includes a cylinder fixed to the bottom of the upper end of the outer shell, the bottom of the piston rod of the cylinder is fixed with an extrusion block, the extrusion block is provided with a ramp at the two corners corresponding to the upper clamping blocks, and the bottom of the extrusion block is provided with a groove.

[0010] Preferably, the two lower clamping blocks are symmetrically provided with an extension ramp at one end away from the axis of symmetry of the T-slot; the two upper clamping blocks are hinged to a connecting rod at one end away from the axis of symmetry of the T-slot and below the side wall of the outer shell, and the lower end of the connecting rod is connected to a smooth plate by a hinge.

[0011] Preferably, the two upper clamping blocks are symmetrically provided with lower half-grooves near the symmetry axis of the T-groove, and each lower half-groove is connected to an upper pressure block by multiple pressure-bearing elastic telescopic rods on the side away from the symmetry axis of the T-groove; the two lower clamping blocks are symmetrically provided with upper half-grooves corresponding to the lower half-grooves of the upper clamping blocks, and each upper half-groove is connected to a lower top block by multiple pressure-bearing elastic telescopic rods on the side away from the symmetry axis of the T-groove; each upper pressure block and lower top block are symmetrically provided with oblique notches at the front corners near the symmetry axis of the T-groove.

[0012] Preferably, a sliding groove is provided in the middle of the base plate, and partitions are fixed on the left and right side walls of the sliding groove. The top of the two partitions are symmetrically provided with evenly distributed triangular prism protrusions. Each triangular prism protrusion has an inclined surface on the side corresponding to the moving working part and the side away from the moving working part.

[0013] Preferably, the grinding component includes a fixed grinding plate fixed between the pushing end of the multi-segment electric push rod and the connecting plate. The fixed grinding plate has a plug-shaped groove in the middle. The front side of the plug-shaped groove is connected to a movable cleaning plate through multiple horizontal elastic telescopic rods. The movable cleaning plate is plug-shaped. The bottom of the movable cleaning plate is connected to a track block through a vertical elastic telescopic rod. The front and rear sides of the track block are provided with slopes. The track block cooperates with the triangular prism protrusion, so that the movable cleaning plate can move back and forth within the fixed grinding plate.

[0014] Preferably, the base plate has symmetrical through grooves on the left and right sides of the front end of the slide groove. An L-shaped plate is installed in the through groove. The L-shaped plate is divided into a vertical section and a horizontal section. The vertical section of the L-shaped plate is higher than the position of the lower support plate. The vertical section of the L-shaped plate is located on the outside of the shell and is in sliding fit with the base plate. The horizontal sections of the two L-shaped plates extend to the slide groove in the middle of the base plate. The horizontal section of the L-shaped plate is connected to the bottom of the through groove by multiple vertical springs. The horizontal section of the L-shaped plate has a forward and upward slope at the position of the slide groove. Baffles are symmetrically fixed on the top of the base plate and on both sides away from the L-shaped plate. The baffles are higher than the vertical section of the L-shaped plate.

[0015] Preferably, the bottom of the connecting plate is fixed with a lower pressure block by a vertical plate. The length of the lower pressure block is the distance between the two L-shaped plates. The left and right ends of the lower pressure block are symmetrically fixed with inclined pressure blocks. The lower end of the inclined pressure block is provided with a slope that slopes backward and downward.

[0016] Preferably, a lower baffle is fixed at the front end of the lower clamping block and on the upper left side of the lower support plate.

[0017] The beneficial effects of the present invention are as follows: First, the present invention uses a lower baffle to precisely control the gap between the cut flexible PCB boards, thereby making the cut flexible PCB boards and the edge grinding parts fit tightly together, increasing the edge grinding effect. At the same time, the present invention uses a combination of a fixed grinding plate and a movable cleaning plate for edge grinding, which further increases the edge grinding effect of the edge grinding parts on the flexible PCB boards.

[0018] Second, this invention, through the combined action of the extrusion section, the inclined block at the top of the upper clamping block, and the side wall above the square opening of the outer shell, can flatten the wrinkled part in the middle of the flexible PCB board, thereby avoiding the difficulty of cutting and edge grinding caused by the wrinkles in the middle of the flexible PCB board. At the same time, through the combined use of the extended inclined platform and the smooth plate, this invention can flatten the part of the flexible PCB board that is longer than the upper and lower clamping blocks, and after flattening, it has a certain pressure effect on the flexible PCB board to prevent the flexible PCB board from changing shape due to shaking during the cutting and edge grinding process.

[0019] Third, the present invention uses a fixing pin set between the upper clamping block and the lower clamping block, so that the flexible PCB board can be perpendicular to the cutting direction by adhering to the fixing pin during the positioning process, thereby avoiding the occurrence of oblique cutting. Furthermore, the pressing of the upper clamping block by the pressing part can achieve precise positioning of the flexible PCB board, thereby avoiding the reduction of processing accuracy due to the shaking caused by cutting and edge grinding. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0022] Figure 2 This is a partial cross-sectional view of the base plate, outer shell, clamping part and extrusion part of the present invention.

[0023] Figure 3 yes Figure 2 Enlarged view of point A in the middle.

[0024] Figure 4 yes Figure 2 The front view.

[0025] Figure 5 This is a structural diagram of the clamping part.

[0026] Figure 6 This is a schematic diagram of the structure between the base plate, outer shell, moving working part, clamping part and extrusion part of the present invention.

[0027] Figure 7 This is a structural schematic diagram of the connecting plate, vertical plate, lower pressure block, inclined pressure block, and edge grinding part of the present invention.

[0028] In the diagram: 1. Base plate; 11. Support plate; 12. Partition; 13. Triangular prism protrusion; 14. L-shaped plate; 15. Baffle; 2. Outer shell; 3. Moving working part; 31. Multi-segment electric push rod; 32. Grinding part; 321. Fixed grinding plate; 322. Movable cleaning plate; 323. Track block; 33. Connecting plate; 34. Cutting part; 35. Vertical plate; 36. Lower pressure block; 37. Angled pressure block ; 4. Clamping part; 41. T-block; 42. Lower clamping block; 421. Lower support plate; 422. Extending ramp; 423. Lower top block; 424. Lower baffle; 43. Fixing pin; 431. Sliding sleeve; 44. Upper clamping block; 441. Upper support plate; 442. Connecting rod; 443. Smooth plate; 444. Upper pressure block; 45. Return spring; 5. Extrusion part; 51. Cylinder; 52. Extrusion block. Detailed Implementation

[0029] The embodiments of the present invention are described in detail below. The embodiments described below are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention. Where specific techniques or conditions are not specified in the embodiments, they shall be performed in accordance with the techniques or conditions described in the literature in the art or in accordance with the product manual.

[0030] See Figures 1-6 An integrated cutting and edge-grinding device for flexible PCB board manufacturing includes a base plate 1 and a housing 2. The base plate 1 is T-shaped, and a moving working part 3 is fixed to the front end of the base plate 1 via a support plate 11. The moving working part 3 is located on the front side of the housing 2. A clamping part 4 is connected to the top of the base plate 1 and inside the housing 2. A pressing part 5 is fixed to the bottom of the upper end of the housing 2 and is located above the clamping part 4. This invention uses the clamping part 4 to accurately position and flatten the flexible PCB board, and uses the moving working part 3 to cut the flexible PCB board and perform edge grinding after cutting. Specifically, the flexible PCB board is first placed into the clamping part 4, then the pressing part 5 is gradually controlled to position the flexible PCB board in the clamping part 4 and flatten it. Then, the moving working part 3 is controlled to cut the flexible PCB board and perform edge grinding after cutting, so that the flexible PCB board reaches a suitable size for use and the cut edges do not produce burrs.

[0031] See Figure 1 , Figure 2 , Figure 4 and Figure 5 The lower part of the left and right side walls of the outer shell 2 is symmetrically provided with square openings; the left and right sides of the bottom plate 1 are symmetrically provided with T-slots; the clamping part 4 includes two T-blocks 41 symmetrically arranged in the T-slots of the bottom plate 1. The T-blocks 41 are slidably fitted with the bottom plate 1. Each T-block 41 has a tension spring connected to the side wall of the T-slot at the end away from the axis of symmetry of the T-slot. Each T-block 41 has a lower clamping block 42 fixed at the top. Multiple fixing pins 43 are symmetrically fixed at the front and rear ends of the lower clamping block 42. Each fixing pin 43 has a sliding sleeve 431 slidably connected to the upper part. Upper clamping blocks 44 corresponding to the lower clamping blocks 42 are fixed between the sliding sleeves 431. The end of each upper clamping block 44 away from the axis of symmetry of the T-slot abuts against the side wall above the square opening of the corresponding outer shell 2. The clamping part 4 is used to position the flexible PCB board. The upper clamping block 44 and the lower clamping block 42 squeeze the flexible PCB board to make it more stable and avoid the wobbling that would cause a slanted cut during cutting. Specifically, the flexible PCB board is first placed in the box, and then the front end of the flexible PCB board is attached to the side of the front fixing pin 43 to make the flexible PCB board accurately positioned. Then, under the squeezing action of the squeezing part 5 and due to the obstruction of the side wall above the square opening of the outer shell 2, the upper clamping block 44 moves downward and together with the lower clamping block 42 squeezes the flexible PCB board, thereby achieving the purpose of the present invention to accurately and firmly position the flexible PCB board.

[0032] See Figure 2 and Figure 5 Two upper clamping blocks 44 are symmetrically positioned with inclined blocks near the extrusion section 5. The extrusion section 5 includes a cylinder 51 fixed to the bottom of the upper end of the outer shell 2. An extrusion block 52 is fixed to the bottom of the piston rod of the cylinder 51. The extrusion block 52 has ramps at the two corners of the upper clamping blocks 44 and a groove at its bottom. The groove at the bottom of the extrusion block 52 is used to prevent the extrusion block 52 from obstructing some components in the moving working part 3, so as to ensure the normal operation of the equipment. At the same time, under the combined action of the extrusion section 5, the inclined blocks on the top of the upper clamping blocks 44, and the side wall above the square opening of the outer shell 2, the upper clamping blocks 44 and the lower clamping blocks 42 can move downward first and then to the left and right sides respectively. This allows the clamping part 4 to not only accurately and firmly position the flexible PCB board, but also to flatten the wrinkled parts in the middle of the flexible PCB board, so as to avoid inaccurate cutting due to the wrinkles of the flexible PCB board during cutting.

[0033] See Figure 2 and Figure 5 Two lower clamping blocks 42 are symmetrically provided with expansion ramps 422 at their ends away from the axis of symmetry of the T-slot; two upper clamping blocks 44 are hinged to connecting rods 442 at their ends away from the axis of symmetry of the T-slot and located below the side wall of the outer shell 2. The lower end of the connecting rods 442 is connected to a smooth plate 443 via a hinge. The expansion ramps 422 and the smooth plate 443 are used together to flatten the portion of the flexible PCB board that is longer than the upper clamping blocks 44 and the lower clamping blocks 42, and to exert a certain pressure on the flexible PCB board after flattening, so that the flexible PCB board will not change shape due to shaking during cutting and edge grinding. Specifically, as the upper clamping blocks 44 move downward, the smooth plate 443 expands outward and flattens the flexible PCB board.

[0034] See Figure 2 and Figure 6 Two upper clamping blocks 44 are symmetrically arranged with lower half-grooves near one end of the T-groove's axis of symmetry. Each lower half-groove is connected to an upper pressure block 444 via multiple pressure-bearing elastic telescopic rods on its side away from the T-groove's axis of symmetry. Two lower clamping blocks 42 are symmetrically arranged with upper half-grooves corresponding to the lower half-grooves of the upper clamping blocks 44. Each upper half-groove is connected to a lower top block 423 via multiple pressure-bearing elastic telescopic rods on its side away from the T-groove's axis of symmetry. Each upper pressure block 444 and lower top block 423 has a symmetrical notch at the front corner near the T-groove's axis of symmetry. The upper pressure blocks 444 and lower top blocks 423 are used to increase the compression area of ​​the upper clamping blocks 44 and lower clamping blocks 42 on the flexible PCB board, preventing the flexible PCB board from bending due to its own weight after being cut. At the same time, the notches on the upper pressure blocks 444 and lower top blocks 423 prevent the upper pressure blocks 444 and lower top blocks 423 from obstructing the backward movement of the moving working part 3.

[0035] See Figure 1 and Figure 6 The motion working unit 3 includes a multi-segment electric push rod 31 fixed to the rear end of the support plate 11. A grinding element 32 is fixed to the rear end of the multi-segment electric push rod 31, and a cutting element 34 is fixed to the rear end of the grinding element 32 via a connecting plate 33. The cutting element 34 is used to cut the flexible PCB board, and the grinding element 32 is used to grind the edges of the cut flexible PCB board. When the motion working unit 3 moves back and forth for one cycle, the grinding element 32 can grind the flexible PCB board twice, increasing the grinding effect. Specifically, controlling the multi-segment electric push rod 31 causes the cutting element 34 and the grinding element 32 to move backward together, thereby cutting and grinding the flexible PCB board sequentially.

[0036] It should be noted that the cutting component 34 is used for cutting flexible PCB boards. Its components include a motor, a cutter, and some support components. However, since it is widely used in the prior art and is not the main inventive point of this invention, it will not be described in detail here.

[0037] See Figures 1-3The base plate 1 has symmetrical through grooves on the left and right sides of the front end of the slide groove. L-shaped plates 14 are installed in the through grooves. The L-shaped plates 14 are divided into vertical sections and horizontal sections. The vertical section of the L-shaped plates 14 is higher than the position of the lower support plate 421. The vertical section of the L-shaped plates 14 is located outside the outer shell 2 and is in sliding fit with the base plate 1. The horizontal sections of the two L-shaped plates 14 extend all the way to the slide groove in the middle of the base plate 1. The horizontal section of the L-shaped plates 14 is connected to the bottom of the through groove by multiple vertical springs. The horizontal section of the L-shaped plates 14 has a forward and upward slope at the position of the slide groove. Baffles 15 are symmetrically fixed on the top of the base plate 1 and on both sides away from the L-shaped plates 14. The baffles 15 are higher than the vertical sections of the L-shaped plates 14. A lower baffle 424 is fixed at the front end of the lower clamping block 42 and on the upper left side of the lower support plate 421. The lower baffle 424, in conjunction with the L-shaped plate 14, limits the lateral expansion of the clamping part 4, preventing excessive lateral expansion from tearing the flexible PCB board. Simultaneously, the baffle 15's blocking effect on the lower baffle 424 allows for a gap between the cut flexible PCB board and the edge-grinding component 32, ensuring the edge-grinding effect is effectively enhanced. Specifically, after the flattening and stretching actions are completed, the lower baffle 424 is first blocked by the vertical portion of the L-shaped plate 14, then the control cylinder 51 stops, and simultaneously the pressing block 52 stops. The downward pressure on the upper clamping block 44 is stopped. After the cutting is completed, the L-shaped plate 14 moves downward as a whole under the action of external force, thereby releasing the blocking effect on the lower baffle 424. Then, the cylinder 51 is controlled to drive the pressing block 52 to move downward to continue to press the upper clamping block 44, thereby pushing the upper clamping block 44 and the lower clamping block 42 to move away from the axis of symmetry of the T-slot. When the lower baffle 424 reaches the baffle 15, the cylinder 51 is controlled to stop again, thereby creating a gap between the cut flexible PCB board and the edge grinding part 32 to pass through, thus ensuring that the subsequent edge grinding operation can proceed normally.

[0038] See Figures 6-7 A pressing block 36 is fixed to the bottom of the connecting plate 33 via a vertical plate 35. The length of the pressing block 36 is the distance between the two L-shaped plates 14. Sloping pressing blocks 37 are symmetrically fixed to both ends of the pressing block 36, and the lower end of the sloping pressing block 37 has a downward and backward slope. The sloping pressing blocks 37 are used to press down on the L-shaped plates 14, thereby relieving the obstruction of the lower baffle 424 by the L-shaped plates 14. At the same time, the pressing block 36 can rest against the base plate 1, preventing the moving working part 3 from tilting due to the weight concentrated at the rear, which would affect the cutting and edge grinding effect.

[0039] See Figures 6-7The grinding component 32 includes a fixed grinding plate 321 fixed between the pushing end of the multi-segment electric push rod 31 and the connecting plate 33. A plug-shaped groove is provided in the middle of the fixed grinding plate 321. A movable cleaning plate 322 is connected to the front side of the plug-shaped groove via multiple horizontal elastic telescopic rods. The movable cleaning plate 322 is plug-shaped. A track block 323 is connected to the bottom of the movable cleaning plate 322 via a vertical elastic telescopic rod. The track block 323 has ramps on its front and rear sides. The track block 323 cooperates with the triangular prism protrusion 13, allowing the movable cleaning plate 322 to move back and forth within the fixed grinding plate 321. A sliding groove is provided in the middle of the base plate 1. Partitions 12 are fixed to the left and right sidewalls of the sliding groove. The tops of the two partitions 12 are symmetrically provided with evenly distributed triangular prism protrusions 13. Each triangular prism protrusion 13 has an inclined surface on one side corresponding to the moving working part 3 and on the side away from the moving working part 3. The edge grinding component 32 is used for edge grinding operations on the cut flexible PCB board. At the same time, the cooperation between the triangular prism protrusion 13 and the track block 323 enables the movable cleaning plate 322 to repeatedly grind the cut surface of the flexible PCB board, effectively removing debris generated during cutting. Specifically, after a gap is created between the flexible PCB boards to allow the edge grinding component 32 to pass through, the multi-segment electric push rod 31 pushes the edge grinding component 32 to continue moving backward, thereby grinding the side wall of the cut flexible PCB board. Simultaneously, under the cooperation of the triangular prism protrusion 13 and the track block 323, the movable cleaning plate 322 grinds the side wall of the cut flexible PCB board multiple times. Subsequently, during the retraction of the multi-segment electric push rod 31, the edge grinding component 32 performs a secondary edge grinding on the side wall of the cut flexible PCB board, further enhancing the edge grinding effect.

[0040] See Figure 2 and Figure 5 Lower support plates 421 are symmetrically fixed on the front and rear sides of the lower clamping block 42 and below the fixing pin 43. Upper support plates 441 are fixed on the front and rear sides of the upper clamping block 44 and at positions corresponding to the lower support plates 421. The lower support plates 421 and the corresponding upper support plates 441 are connected by a return spring 45. The return spring 45 is used to restore the upper and lower positions of the upper clamping block 44 after cutting and edge grinding.

[0041] The specific working steps of the present invention are as follows: First, a flexible PCB board is placed in the middle. Then, the front end of the flexible PCB board is attached to the side of the front fixing pin 43 to make the flexible PCB board accurately positioned. Then, the upper clamping block 44 moves downward under the squeezing action of the squeezing block 52 and under the blocking action of the side wall above the square opening of the outer shell 2, and together with the lower clamping block 42, squeezes the flexible PCB board.

[0042] The second step is to continue controlling the cylinder 51 to drive the extrusion block 52 to extrude the upper clamping block 44, thereby causing the upper clamping block 44 and the lower clamping block 42 to move away from the axis of symmetry of the T-slot, so as to flatten the wrinkled part in the middle of the flexible PCB board. At the same time, the smooth plate 443 expands outward and stretches the flexible PCB board.

[0043] In the third step, after the flattening and stretching actions are completed, the lower baffle 424 is first blocked by the vertical part of the L-shaped plate 14, then the control cylinder 51 stops, and at the same time the pressing block 52 stops pressing down on the upper clamping block 44, and the control multi-segment electric push rod 31 pushes the cutting part 34 and the edge grinding part 32 to move backward together.

[0044] Fourth step: After the cutting is completed, the inclined pressure block 37 presses down on the L-shaped plate 14, thereby releasing the blocking effect of the L-shaped plate 14 on the lower baffle 424. Then, the cylinder 51 is controlled to drive the extrusion block 52 to move downward to continue to extrude the upper clamping block 44, thereby pushing the upper clamping block 44 and the lower clamping block 42 as a whole to move away from the axis of symmetry of the T-slot. When the lower baffle 424 reaches the baffle 15, the cylinder 51 is controlled to stop again.

[0045] In the fifth step, the multi-segment electric push rod 31 pushes the edge grinding component 32 to continue moving backward, thereby grinding the side wall of the cut flexible PCB board. At the same time, under the cooperation of the triangular prism protrusion 13 and the track block 323, the movable cleaning plate 322 grinds the side wall of the cut flexible PCB board multiple times. Then, the multi-segment electric push rod 31 is controlled to retract, at which point the edge grinding component 32 performs a second edge grinding on the side wall of the cut flexible PCB board.

[0046] Step 6: After the multi-segment electric push rod 31 has fully retracted, the control cylinder 51 retracts, thereby releasing the pressure of the compression block 52 on the upper clamping block 44. Under the action of the tension spring, the upper clamping block 44 and the lower clamping block 42 move towards the direction close to the axis of symmetry of the T-slot, and the equipment returns to the initial position.

[0047] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention, which are still covered within the protection scope of the present invention.

Claims

1. A flexible PCB board manufacturing, cutting, and edge-grinding integrated equipment, comprising a base plate (1) and a housing (2), characterized in that, The base plate (1) is T-shaped. The front end of the base plate (1) is fixed with a moving working part (3) by a support plate (11). The moving working part (3) is located on the front side of the outer shell (2). The top of the base plate (1) and inside the outer shell (2) are connected to a clamping part (4). The bottom of the upper end of the outer shell (2) is fixed with a pressing part (5). The pressing part (5) is located on the upper side of the clamping part (4). The motion working part (3) includes a multi-segment electric push rod (31) fixed to the rear end of the support plate (11), and a grinding part (32) is fixed to the rear end of the multi-segment electric push rod (31). A cutting part (34) is fixed to the rear end of the grinding part (32) through a connecting plate (33). The lower part of the left and right side walls of the outer shell (2) is symmetrically provided with square openings; the left and right sides of the bottom plate (1) are symmetrically provided with T-shaped grooves; the clamping part (4) includes two T-shaped blocks (41) symmetrically arranged in the T-shaped groove of the bottom plate (1), the T-shaped blocks (41) and the bottom plate (1) are in sliding fit, each T-shaped block (41) is connected to the side wall of the T-shaped groove at the end away from the axis of symmetry of the T-shaped groove with a tension spring, each T-shaped block (41) is fixed with a lower clamping block (42) at the top, the lower clamping block (42) is symmetrically fixed with multiple fixing pins (43) at the front and rear ends, each fixing pin (43) is slidably connected with a sliding sleeve (431) at the upper part, and an upper clamping block (44) corresponding to the lower clamping block (42) is fixed between the sliding sleeves (431), and the end of each upper clamping block (44) away from the axis of symmetry of the T-shaped groove abuts against the side wall above the square opening of the corresponding outer shell (2); Lower support plates (421) are symmetrically fixed on the front and rear sides of the lower clamping block (42) and below the fixing pin (43). Upper support plates (441) are fixed on the front and rear sides of the upper clamping block (44) and at positions corresponding to the lower support plates (421). The lower support plates (421) and the corresponding upper support plates (441) are connected by a return spring (45). The return spring (45) is used to restore the upper clamping block (44) to its upper and lower positions after cutting and edge grinding.

2. The integrated equipment for manufacturing, cutting, and edge grinding of flexible PCB boards according to claim 1, characterized in that, Two upper clamping blocks (44) are symmetrically provided with inclined blocks at the top near the extrusion part (5); the extrusion part (5) includes a cylinder (51) fixed to the bottom of the upper end of the outer shell (2), and an extrusion block (52) is fixed to the bottom of the piston rod of the cylinder (51). The extrusion block (52) is provided with ramps at the two corners of the upper clamping block (44), and a groove is provided at the bottom of the extrusion block (52).

3. The integrated equipment for manufacturing, cutting, and edge grinding of flexible PCB boards according to claim 1, characterized in that, The two lower clamping blocks (42) are symmetrically provided with an extension ramp (422) at one end away from the axis of symmetry of the T-slot; the two upper clamping blocks (44) are hinged to a connecting rod (442) at one end away from the axis of symmetry of the T-slot and below the side wall of the outer shell (2), and the lower end of the connecting rod (442) is connected to a smooth plate (443) by a hinge.

4. The integrated equipment for manufacturing, cutting, and edge grinding of flexible PCB boards according to claim 1, characterized in that, The two upper clamping blocks (44) are symmetrically provided with lower half-grooves near the T-groove axis of symmetry. Each lower half-groove is connected to an upper pressure block (444) via multiple pressure-bearing elastic telescopic rods on the side away from the T-groove axis of symmetry. The two lower clamping blocks (42) are symmetrically provided with upper half-grooves corresponding to the lower half-grooves of the upper clamping blocks (44). Each upper half-groove is connected to a lower top block (423) via multiple pressure-bearing elastic telescopic rods on the side away from the T-groove axis of symmetry. Each upper pressure block (444) and lower top block (423) are symmetrically provided with oblique notches at the front corners near the T-groove axis of symmetry.

5. The integrated equipment for manufacturing, cutting, and edge grinding of flexible PCB boards according to claim 1, characterized in that, The bottom plate (1) is provided with a sliding groove in the middle position. The left and right side walls of the sliding groove are fixed with partitions (12). The top of the two partitions (12) are symmetrically provided with evenly distributed triangular prism protrusions (13). Each triangular prism protrusion (13) is inclined on one side of the moving working part (3) and the side away from the moving working part (3).

6. The integrated equipment for manufacturing, cutting, and edge grinding of flexible PCB boards according to claim 5, characterized in that, The grinding component (32) includes a fixed grinding plate (321) fixed between the pushing end of the multi-segment electric push rod (31) and the connecting plate (33). The fixed grinding plate (321) has a plug-shaped groove in the middle. The front side of the plug-shaped groove is connected to a movable cleaning plate (322) through multiple horizontal elastic telescopic rods. The movable cleaning plate (322) is plug-shaped. The bottom of the movable cleaning plate (322) is connected to a track block (323) through a vertical elastic telescopic rod. The track block (323) has ramps on its front and rear sides. The track block (323) cooperates with the triangular prism protrusion (13) so that the movable cleaning plate (322) can move back and forth within the fixed grinding plate (321).

7. The integrated equipment for manufacturing, cutting, and edge grinding of flexible PCB boards according to claim 5, characterized in that, The base plate (1) has symmetrical through grooves on the left and right sides of the front end of the slide groove. An L-shaped plate (14) is provided in the through groove. The L-shaped plate (14) is divided into a vertical section and a horizontal section. The vertical section of the L-shaped plate (14) is higher than the position of the lower support plate (421). The vertical section of the L-shaped plate (14) is located outside the outer shell (2) and is in sliding fit with the base plate (1). The horizontal sections of the two L-shaped plates (14) extend all the way to the slide groove in the middle position of the base plate (1). The horizontal section of the L-shaped plate (14) is connected to the bottom of the through groove by multiple vertical springs. The horizontal section of the L-shaped plate (14) is provided with a forward and upward slope in the part of the slide groove position. Baffles (15) are symmetrically fixed on the top of the base plate (1) and on both sides away from the L-shaped plate (14). The baffles (15) are higher than the vertical section of the L-shaped plate (14).

8. The integrated equipment for manufacturing, cutting, and edge grinding of flexible PCB boards according to claim 7, characterized in that, The bottom of the connecting plate (33) is fixed with a lower pressure block (36) by a vertical plate (35). The length of the lower pressure block (36) is the distance between the two L-shaped plates (14). The left and right ends of the lower pressure block (36) are symmetrically fixed with inclined pressure blocks (37). The lower end of the inclined pressure block (37) is provided with a slope that slopes backward and downward.

9. The integrated equipment for manufacturing, cutting, and edge grinding of flexible PCB boards according to claim 1, characterized in that, A lower baffle (424) is fixed at the front end of the lower clamping block (42) and on the upper left side of the lower support plate (421).

Citation Information

Patent Citations

  • PCB cutting system

    CN212554169U