CN113038708B

CN113038708B - Punching device for adding protective plate and pasting adhesive tape on PCB production line

Info

Publication number: CN113038708B
Application number: CN202110223962.3A
Authority: CN
Inventors: 魏思良
Original assignee: Hubei Handing Circuit Electronics Co ltd
Current assignee: Hubei Handing Circuit Electronics Co ltd
Priority date: 2021-03-01
Filing date: 2021-03-01
Publication date: 2022-06-24
Anticipated expiration: 2041-03-01
Also published as: CN113038708A

Abstract

The invention relates to a punching device, in particular to a punching device for adding a protection plate and pasting an adhesive tape on a PCB production line. Comprises a supporting frame, a conveying belt, a placing plate, a lower plate mechanism and the like; on braced frame was located to the conveyer belt, the conveyer belt top was equipped with places the board, and hypoplastron mechanism located braced frame is last, and rubberizing cutting mechanism locates braced frame is last, and the mechanism of punching is located braced frame. The invention can reserve a length of the adhesive tape on the adhesive tape roll for cutting through the mutual matching of the adhesive tape sticking and cutting mechanism, the rolling device and the adhesive tape uncovering block, and then uncovers the adhesive tape stuck on the protective plate, thereby facilitating the punching of the PCB, and realizing the purposes of automatically sticking the adhesive tape on the protective plate, cutting the adhesive tape, uncovering the stuck adhesive tape and intermittently putting the protective plate.

Description

Punching device for adding protective plate and sticking adhesive tape on PCB production line

Technical Field

The invention relates to a punching device, in particular to a punching device for adding a protection plate and pasting an adhesive tape on a PCB production line.

Background

The PCB printed circuit board is an important electronic component and is a carrier for electrical connection of electronic components, after the electronic equipment adopts the PCB printed circuit board, because of the consistency of the similar printed circuit boards, the error of manual wiring is avoided, the automatic insertion or mounting, automatic tin soldering and automatic detection of the electronic components can be realized, the quality of the electronic equipment is ensured, the labor productivity is improved, the cost is reduced, the maintenance is convenient, in the process of processing the PCB printed circuit board, the PCB printed circuit board is punched, a protective plate is added before punching, and then an adhesive tape is pasted.

In the prior art, a protection board is manually placed on a PCB (printed Circuit Board) by a worker, then an adhesive tape is manually pasted on the protection board for fixing, then the PCB is automatically punched by punching equipment, and finally the adhesive tape is manually uncovered, so that the protection board cannot be automatically put in, the protection board cannot be automatically pasted with the adhesive tape, cut the adhesive tape and uncovered, a large amount of manpower is consumed, and the working efficiency is low.

Disclosure of Invention

Therefore, the protection board can be intermittently put in, the protection board can be automatically pasted with the adhesive tape and cut, the pasted adhesive tape is uncovered, and the rotating roller can be used for rolling on the adhesive tape on the protection board to enable the adhesive tape to paste the protection board more tightly on a PCB production line.

The technical scheme of the invention is as follows: the utility model provides an add perforating device of protection shield and rubberizing cloth on PCB printed circuit board production line, includes braced frame, conveyer belt, places board, hypoplastron mechanism, rubberizing cutting mechanism and the mechanism of punching, on braced frame was located to the conveyer belt, the conveyer belt top was equipped with places the board, and hypoplastron mechanism locates braced frame on, rubberizing cutting mechanism locates braced frame, and the mechanism of punching is located braced frame.

In one embodiment, the lower plate mechanism comprises a protective plate frame, an electric push rod, a telescopic plate, a sliding plate, a first return spring, a first fixed plate, a second fixed plate, a first rotating plate, a first torsion spring, an overrunning clutch, a third fixed plate, a second rotating plate, a wedge block and a second torsion spring, wherein the protective plate frame is arranged on the supporting frame, the electric push rod is arranged on the supporting frame, the telescopic plate is arranged at one end of the electric push rod, the sliding plate is slidably connected to one side of the telescopic plate through a sliding rail, the first return spring is connected between the sliding plate and the telescopic plate, the first fixed plate is symmetrically arranged on the protective plate frame, the second fixed plate is symmetrically arranged on the protective plate frame, the first rotating plate is connected between the first fixed plate and the second fixed plate in a common rotating manner, the first torsion spring is connected between the first rotating plate and the first fixed plate, and the first torsion spring is also connected between the first rotating plate and the second fixed plate, one end of the first rotating plate is provided with an overrunning clutch, the protecting plate frames are symmetrically provided with third fixing plates, a second rotating plate is rotatably connected between the third fixing plates, a second torsion spring is connected between the second rotating plate and the third fixing plates, one end of the second rotating plate is also connected with the overrunning clutch, and the supporting frame is provided with two wedge-shaped blocks.

In one embodiment, the rubberizing and cutting mechanism comprises a first fixed strip, a sliding strip, a second return spring, a second fixed strip, a first fixed rod, a rubber tape roll, a cutter and a pushing frame, wherein the first fixed strip is arranged on the conveying belt, the sliding strip is connected on the first fixed strip in a sliding mode, the second return spring is connected between the sliding strip and the first fixed strip, two second fixed strips are arranged on the supporting frame, the first fixed rod is arranged on one wedge-shaped block, the first fixed rod is also arranged on the supporting frame, the rubber tape roll is connected at one end of the first fixed rod in a rotating mode, the cutter is arranged on the conveying belt, and the pushing frame is arranged on the sliding strip.

In one embodiment, the punching mechanism comprises a first slide bar, a punching plate, a third return spring and a wedge-shaped frame, the first slide bar is connected onto the supporting frame in a sliding mode, the punching plate is fixedly connected to the bottom end of the first slide bar, the third return spring is connected between the punching plate and the first slide bar, and the wedge-shaped frame is arranged on the conveying belt.

In one embodiment, the device also comprises a control panel device, the control panel device is arranged on the protection plate frame, the control panel device comprises a sliding frame, a second sliding rod, a fourth reset spring, a first rack, a fourth fixing plate, a gear, a second rack and a fifth fixing plate, two second sliding rods are arranged on two sides of the protection plate frame, wherein the common slidingtype is connected with the carriage on two second slide bars, the common slidingtype is connected with the fifth fixed plate on two second slide bars in addition, be connected with fourth reset spring between carriage and the protection sheet frame, be connected with fourth reset spring equally between fifth fixed plate and the protection sheet frame, carriage one end is equipped with first rack, protection sheet frame one side is equipped with the fourth fixed plate, the last rotation type of fourth fixed plate is connected with the gear, gear one side and first rack toothing, fifth fixed plate one end is equipped with the second rack, gear opposite side and second rack toothing.

In one embodiment, the rolling device is arranged on the supporting frame and comprises a fixed frame, a sliding block, a second fixed rod, a rotating roller and a fifth return spring, the fixed frame is arranged on the supporting frame, the second fixed rod is connected onto the fixed frame in a sliding mode, the sliding block is fixedly connected to one end of the second fixed rod, the rotating roller is connected to the other end of the second fixed rod in a rotating mode, and the fifth return spring is connected between the sliding block and the fixed frame.

In one embodiment, the conveyor belt further comprises a glue stripping block, the glue stripping block is arranged on the top of the second fixing strip, and the bottom of the glue stripping block is in contact with the conveyor belt.

The invention has the beneficial effects that:

according to the invention, through the mutual matching of the lower plate mechanism and the plate control device, the sliding frame and the protection plates on the fifth fixing plate automatically fall onto the second rotating plate, the protection plates on the second rotating plate fall onto the sliding plate, the protection plates on the sliding plate fall onto the PCB on the placing plate, and the plate control device enables the lower plate mechanism to fall onto one protection plate at a time, so that preparation can be made for next protection plate throwing, the work efficiency is improved, and the effect of intermittently throwing the protection plates is achieved.

According to the invention, through the mutual matching of the rubberizing cutting mechanism, the rolling device and the adhesive uncovering block, the adhesive tape roll can automatically rubberize the protective plate on the PCB, then the rotating roller rolls on the adhesive tape, then the cutter cuts the adhesive tape, so that the adhesive tape on the protective plate is tightly attached, the adhesive tape on the adhesive tape roll can be cut after a section of length is reserved, and then the adhesive tape attached to the protective plate is uncovered by the adhesive uncovering block, so that the PCB is conveniently punched, and the purposes of automatically attaching the adhesive tape to the protective plate, cutting the adhesive tape and uncovering the attached adhesive tape are realized.

Drawings

Fig. 1 is a schematic perspective view of a first embodiment of the present invention.

Fig. 2 is a schematic perspective view of a second embodiment of the present invention.

Fig. 3 is a schematic perspective view of the lower plate mechanism of the present invention.

Fig. 4 is an enlarged schematic perspective view of the invention B.

Fig. 5 is a partially separated perspective view of the lower plate mechanism of the present invention.

Fig. 6 is a schematic perspective view of the rubberizing and cutting mechanism according to the present invention.

Fig. 7 is an enlarged perspective view of the present invention C.

Fig. 8 is a schematic perspective view of the hole punching mechanism of the present invention.

Fig. 9 is a schematic perspective view of the control panel device of the present invention.

Fig. 10 is an enlarged perspective view of the present invention D.

Fig. 11 is an enlarged perspective view of the present invention a.

Description of reference numerals: 1_ support frame, 2_ conveyor belt, 3_ placement plate, 4_ lower plate mechanism, 41_ protection plate frame, 42_ electric push rod, 43_ expansion plate, 44_ sliding plate, 45_ first return spring, 46_ first fixed plate, 47_ second fixed plate, 48_ first rotating plate, 49_ first torsion spring, 411_ overrunning clutch, 412_ third fixed plate, 413_ second rotating plate, 414_ wedge, 415_ second torsion spring, 5_ rubberized cutting mechanism, 51_ first fixed bar, 52_ sliding bar, 53_ second return spring, 54_ second fixed bar, 55_ first fixed bar, 56_ adhesive tape roll, 57_ cutter, 58_ push frame, 6_ punch mechanism, 61_ first slide bar, 62_ punch plate, 63_ third return spring, 64_ wedge frame, 7_ control plate device, 71_ carriage, 72_ second slide bar, 73_ fourth return spring, 74_ first rack, 75_ fourth fixed plate, 76_ gear, 77_ second rack, 78_ fifth fixed plate, 8_ rolling device, 81_ fixed frame, 82_ slide block, 83_ second fixed rod, 84_ rotating roller, 85_ fifth return spring, and 9_ uncovering block.

Detailed Description

In order to make the technical solution and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the invention.

Example 1

A punching device for adding a protection plate and pasting an adhesive tape on a PCB production line is disclosed, as shown in figures 1-11, and comprises a supporting frame 1, a conveying belt 2, a placing plate 3, a lower plate mechanism 4, a rubberizing cutting mechanism 5 and a punching mechanism 6, wherein the conveying belt 2 is arranged on the supporting frame 1, the conveying belt 2 is used for conveying a circuit board, the placing plate 3 is arranged at the top of the conveying belt 2, the lower plate mechanism 4 is arranged on the supporting frame 1, the lower plate mechanism 4 is used for intermittently putting in the protection plate, the rubberizing cutting mechanism 5 is arranged on the supporting frame 1, the rubberizing cutting mechanism 5 is used for pasting the adhesive tape on the protection plate and uncovering the adhesive tape, the punching mechanism 6 is arranged on the supporting frame 1, and the punching mechanism 6 is used for punching the circuit board.

The lower plate mechanism 4 comprises a protective plate frame 41, an electric push rod 42, an expansion plate 43, a sliding plate 44, a first return spring 45, a first fixed plate 46, a second fixed plate 47, a first rotating plate 48, a first torsion spring 49, an overrunning clutch 411, a third fixed plate 412, a second rotating plate 413, a wedge block 414 and a second torsion spring 415, the protective plate frame 41 is arranged on the support frame 1, the electric push rod 42 is arranged on one side of the support frame 1 away from the rubber uncovering block 9 and is used for driving the expansion plate 43 and an upper device thereof to reciprocate, the expansion plate 43 is arranged at one end of the electric push rod 42, the sliding plate 44 is connected to one side of the expansion plate 43 in a sliding manner through a sliding rail, the first return spring 45 is connected between the sliding plate 44 and the expansion plate 43, the first return spring 45 is used for driving the sliding plate 44 and the upper device thereof to return, the first fixed plate 46 is symmetrically arranged on the protective plate frame 41, the second fixed plate 47 is symmetrically arranged on the protective plate frame 41, a first rotating plate 48 is connected between the first fixing plate 46 and the second fixing plate 47 in a co-rotating manner, the first rotating plate 48 is used for driving the second rotating plate 413 and the devices thereon to rotate, a first torsion spring 49 is connected between the first rotating plate 48 and the first fixing plate 46, the first torsion spring 49 is used for driving the first rotating plate 48 and the devices thereon to return, a first torsion spring 49 is also connected between the first rotating plate 48 and the second fixing plate 47, an overrunning clutch 411 is arranged at one end of the first rotating plate 48, a third fixing plate 412 is symmetrically arranged at the bottom of the protecting plate frame 41, a second rotating plate 413 is connected between the third fixing plate 412 in a rotating manner, a second torsion spring 415 is connected between the second rotating plate 413 and the third fixing plate 412, the second torsion spring 415 is used for driving the second rotating plate 413 and the devices thereon to return, one end of the second rotating plate 413 is also connected with the overrunning clutch 411, two wedge blocks 414 are provided on the support frame 1.

The rubberizing and cutting mechanism 5 comprises a first fixed strip 51, a sliding strip 52, a second reset spring 53, a second fixed strip 54, a first fixed rod 55, an adhesive tape roll 56, a cutter 57 and a pushing frame 58, the conveyor belt 2 is provided with the first fixed strip 51, the first fixed strip 51 is slidably connected with the sliding strip 52, the second reset spring 53 is connected between the sliding strip 52 and the first fixed strip 51, the second reset spring 53 is used for driving the sliding strip 52 and resetting the upper device thereof, the support frame 1 is provided with the two second fixed strips 54, one wedge block 414 is provided with the first fixed rod 55, the support frame 1 is also provided with the first fixed rod 55, one end of the first fixed rod 55 is rotatably connected with the adhesive tape roll 56, the adhesive tape roll 56 is used for rubberizing the surface of a protective plate, the conveyor belt 2 is provided with the cutter 57, the cutter 57 is used for cutting off the redundant protective plate, the pushing frame 58 is arranged on the sliding strip 52, the pushing frame 58 is used for pushing the sliding block 82 and the device thereon to move towards the direction close to the glue stripping block 9.

The punching mechanism 6 comprises a first slide bar 61, a punching plate 62, a third reset spring 63 and a wedge-shaped frame 64, the support frame 1 is connected with the first slide bar 61 in a sliding mode, the bottom end of the first slide bar 61 is fixedly connected with the punching plate 62, the punching plate 62 is used for punching a hole in a circuit board, the third reset spring 63 is connected between the punching plate 62 and the first slide bar 61, the third reset spring 63 is used for driving the first slide bar 61 and an upper device to reset, the wedge-shaped frame 64 is arranged on the conveying belt 2, and the wedge-shaped frame 64 is used for pushing the punching plate 62 and the upper device to move downwards.

Firstly, a worker needs to manually place a plurality of protection plates in the protection plate frame 41, then manually control the electric push rod 42 to start, the electric push rod 42 starts to drive the expansion plate 43 and the devices thereon to reciprocate, when the sliding plate 44 contacts with the wedge block 414, the wedge block 414 can push the sliding plate 44 to move in the direction away from each other, the first return spring 45 can be compressed, the protection plate previously placed on the sliding plate 44 can fall on the PCB printed circuit board previously placed on the placing plate 3, when the sliding plate 44 moves in the direction away from the wedge block 414, the sliding plate 44 and the devices thereon can be reset, the first return spring 45 can be reset, the expansion plate 43 can push the first rotating plate 48 to rotate 80 degrees in the direction away from the fifth fixing plate 78, so that the second rotating plate 413 and the devices thereon swing downwards, and the protection plate on the second rotating plate 413 can fall on the sliding plate 44, when the first rotating plate 48 contacts the sliding frame 71, the sliding frame 71 and the upper device thereof are pushed by the first rotating plate 48 to move away from the fifth fixing plate 78, so that the first rack 74 drives the gear 76 to rotate, thereby driving the second rack 77 and the upper device thereof to move towards the wedge block 414, so that the sliding frame 71 and the fifth fixing plate 78 move away from each other, and the fourth return spring 73 is stretched, because the opposite side of the sliding frame 71 and the fifth fixing plate 78 is a slope, one protecting plate on the sliding frame 71 and the fifth fixing plate 78 falls onto the second rotating plate 413, so as to prepare for next releasing of the protecting plate, and the first rotating plate 48 is reset under the resetting action of the first torsion spring 49, and the sliding frame 71 and the upper device thereof are reset under the action of the fourth return spring 73, the shielding plate on the carriage 71 is prevented from continuing to fall on the second rotating plate 413 so that only one shielding plate falls on the carriage 71 at a time, and the shielding plate can be intermittently dropped by repeating the above operation.

Then the conveyor belt 2 transmission device is started, when the protection board on the PCB is contacted with the adhesive tape roll 56, the adhesive tape roll 56 will begin to stick the protection board on the PCB to the adhesive tape, the rotating roller 84 will roll on the adhesive tape on the protection board under the effect of friction force, so that the adhesive tape is tightly attached to the protection board, when the two ends of the sliding strip 52 are contacted with the downward inclined plane of the second fixing strip 54, the sliding strip 52 and the device thereon will move downward along the inclined plane, when the sliding strip 52 is contacted with the lower horizontal plane of the second fixing strip 54, the second return spring 53 in the stretching state is reset, the pushing frame 58 will push the sliding block 82 and the device thereon to move towards the direction close to the adhesive uncovering block 9, the fifth return spring 85 is compressed, at this time, the protection board on the PCB is stuck with the adhesive tape, then the adhesive tape on the adhesive tape roll 56 will be continuously pulled out for a distance by the rotating roller 84, the cutter 57 then cuts the adhesive tape pulled out by the rotating roller 84 so that the adhesive tape roll 56 reserves a length of adhesive tape for the next application, the slide bar 52 and the upper device thereof are moved upward along the upward slant, when the slide bar 52 and the upper device thereof are again brought into contact with the higher level of the second fixing bar 54, the second return spring 53 is again extended, the push bracket 58 is separated from the slider 82, the fifth return spring 85 is returned to return the slider 82 and the upper device thereof, when the wedge bracket 64 is brought into contact with the punching plate 62, the wedge bracket 64 pushes the first slide bar 61 and the upper device thereof downward through the punching plate 62, the third return spring 63 is compressed, when the punching plate 62 is brought into contact with the PCB printed circuit board, the punching device is manually actuated, the intelligent punching plate 62 automatically punches a hole through the PCB printed circuit board through the protection plate 62, when the wedge bracket 64 is separated from the punching plate 62, the first sliding rod 61 and the device on the first sliding rod can reset under the reset action of the spring, the punching of the PCB printed circuit board by the punching plate 62 is completed at the moment, when the adhesive tape pasted on the protection plate is contacted with the adhesive tape uncovering block 9, the adhesive tape on the protection plate can be uncovered by the adhesive tape uncovering block 9, the next PCB printed circuit board can be pasted, punched and uncovered by repeating the operations, and finally, the electric push rod 42 is manually controlled to be closed.

Example 2

On the basis of embodiment 1, as shown in fig. 9, the protection device further includes a control panel device 7, the control panel device 7 is disposed on the protection panel frame 41, the control panel device 7 includes a sliding frame 71, a second sliding rod 72, a fourth return spring 73, a first rack 74, a fourth fixing plate 75, a gear 76, a second rack 77 and a fifth fixing plate 78, two second sliding rods 72 are disposed on two sides of the protection panel frame 41, wherein the sliding frame 71 is slidably connected to the two second sliding rods 72, the fifth fixing plate 78 is slidably connected to the two second sliding rods 72, the protection panel falls onto the second rotating plate through the mutual matching between the sliding frame 71 and the fifth fixing plate 78, so that the fourth return spring 73 is connected between the sliding frame 71 and the protection panel frame 41, the sliding frame 71 and the fourth return spring 73 are used for driving the sliding frame 71 and the device thereon to return, the fourth return spring 73 is also connected between the fifth fixing plate 78 and the protection panel frame 41, one end of the sliding frame 71 is provided with a first rack 74, the first rack 74 is used for driving a gear 76 to rotate, one side of the protecting plate frame 41 is provided with a fourth fixing plate 75, the fourth fixing plate 75 is connected with the gear 76 in a rotating mode, the gear 76 is used for driving a second rack 77 to reciprocate, one side of the gear 76 is meshed with the first rack 74, one end of the fifth fixing plate 78 is provided with the second rack 77, the second rack 77 is used for driving the fifth fixing plate 78 to reciprocate, and the other side of the gear 76 is meshed with the second rack 77.

When the first rotating plate 48 contacts the sliding frame 71, the sliding frame 71 and the upper device thereof are pushed by the first rotating plate 48 to move away from the fifth fixing plate 78, so that the first rack 74 drives the gear 76 to rotate, thereby driving the second rack 77 and the upper device thereof to move close to the wedge block 414, so that the sliding frame 71 and the fifth fixing plate 78 move away from each other, the fourth return spring 73 is stretched, because the side of the sliding frame 71 opposite to the fifth fixing plate 78 is a slope, so that one of the protection plates on the sliding frame 71 and the fifth fixing plate 78 falls onto the second rotating plate 413, which is ready for the next projection of the protection plate, the first rotating plate 48 is reset under the reset action of the first torsion spring 49, the sliding frame 71 and the upper device thereof are reset under the action of the fourth return spring 73, so that the protection plate on the sliding frame 71 is prevented from further falling onto the second rotating plate 413, so that only one protective plate is dropped onto the carriage 71 at a time.

Example 3

On the basis of the embodiment 2, as shown in fig. 11, a rolling device 8 is further included, the rolling device 8 is used for making the adhesive plaster on the protection plate more fit with the protection plate, the rolling device 8 is disposed on the supporting frame 1, the rolling device 8 includes a fixing frame 81 and a sliding block 82, the supporting frame 1 is provided with a fixing frame 81, the fixing frame 81 is connected with a second fixing rod 83 in a sliding mode, one end of the second fixing rod 83 is fixedly connected with a sliding block 82, the sliding block 82 is used for driving the second fixing rod 83 and a device on the second fixing rod 83 to move towards the direction close to the rubber uncovering block 9, the other end of the second fixing rod 83 is connected with a rotating roller 84 in a rotating mode, the rotating roller 84 is used for pressing the rubber cloth on the protecting plate tightly, a fifth reset spring 85 is connected between the sliding block 82 and the fixing frame 81, and the fifth reset spring 85 is used for driving the sliding block 82 and the device on the sliding block 82 to reset.

When the sliding strip 52 contacts with the lower level of the second fixed strip 54, the second return spring 53 in the stretching state is reset, the pushing frame 58 pushes the sliding block 82 and the upper device to move towards the direction close to the adhesive removing block 9, the fifth return spring 85 is compressed, the protective plate on the PCB is coated with the adhesive, then the adhesive on the adhesive tape roll 56 is continuously pulled out by the rotating roller 84 for a certain distance, and then the cutter 57 cuts the adhesive pulled out by the rotating roller 84, so that the adhesive tape roll 56 reserves a length of adhesive tape for the next adhesive coating.

Example 4

On the basis of the embodiment 3, as shown in fig. 1, the protective plate further includes a peeling block 9, the peeling block 9 is used for peeling off the adhesive tape pasted on the protective plate, the peeling block 9 is arranged on the top of the second fixing strip 54, and the bottom of the peeling block 9 is in contact with the conveyor belt 2.

When the adhesive tape pasted on the protective plate contacts with the adhesive tape uncovering block 9, the adhesive tape on the protective plate can be uncovered by the adhesive tape uncovering block 9.

While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. The utility model provides an add protection shield and paste perforating device of adhesive tape on PCB printed circuit board production line which characterized in that: the automatic adhesive tape cutting machine comprises a supporting frame (1), a conveying belt (2), a placing plate (3), a lower plate mechanism (4), an adhesive tape cutting mechanism (5) and a punching mechanism (6), wherein the conveying belt (2) is arranged on the supporting frame (1), the placing plate (3) is arranged at the top of the conveying belt (2), the lower plate mechanism (4) is arranged on the supporting frame (1), the adhesive tape cutting mechanism (5) is arranged on the supporting frame (1), and the punching mechanism (6) is arranged on the supporting frame (1);

the lower plate mechanism (4) comprises a protective plate frame (41), an electric push rod (42), a telescopic plate (43), a sliding plate (44), a first reset spring (45), a first fixed plate (46), a second fixed plate (47), a first rotating plate (48), a first torsion spring (49), an overrunning clutch (411), a third fixed plate (412), a second rotating plate (413), a wedge block (414) and a second torsion spring (415), the protective plate frame (41) is arranged on the support frame (1), the electric push rod (42) is arranged on the support frame (1), the telescopic plate (43) is arranged at one end of the electric push rod (42), the sliding plate (44) is slidably connected to one side of the telescopic plate (43) through a sliding rail, the first reset spring (45) is connected between the sliding plate (44) and the telescopic plate (43), the first fixed plate (46) is symmetrically arranged on the protective plate frame (41), the protection plate frame (41) is symmetrically provided with second fixed plates (47), a first rotating plate (48) is connected between the first fixed plate (46) and the second fixed plate (47) in a co-rotating mode, a first torsion spring (49) is connected between the first rotating plate (48) and the first fixed plate (46), the first torsion spring (49) is also connected between the first rotating plate (48) and the second fixed plate (47), one end of the first rotating plate (48) is provided with an overrunning clutch (411), the protection plate frame (41) is symmetrically provided with a third fixed plate (412), a second rotating plate (413) is connected between the third fixed plates (412) (412) in a rotating mode, a second torsion spring (415) is connected between the second rotating plate (413) and the third fixed plate (412), one end of the second rotating plate (413) is also connected with the overrunning clutch (411), and two wedge blocks (414) are arranged on the support frame (1);

the rubberizing and cutting mechanism (5) comprises a first fixed strip (51), a sliding strip (52), a second reset spring (53), a second fixed strip (54), a first fixed rod (55), an adhesive tape roll (56), a cutter (57) and a pushing frame (58), the conveying belt (2) is provided with the first fixed strip (51), the first fixed strip (51) is connected with the sliding strip (52) in a sliding manner, the second reset spring (53) is connected between the sliding strip (52) and the first fixed strip (51), the supporting frame (1) is provided with two second fixed strips (54), a first fixing rod (55) is arranged on one wedge-shaped block (414), the first fixing rod (55) is also arranged on the supporting frame (1), one end of the first fixing rod (55) is rotatably connected with an adhesive tape roll (56), a cutter (57) is arranged on the conveying belt (2), and a pushing frame (58) is arranged on the sliding strip (52);

the punching mechanism (6) comprises a first sliding rod (61), a punching plate (62), a third return spring (63) and a wedge-shaped frame (64), the first sliding rod (61) is connected to the supporting frame (1) in a sliding mode, the bottom end of the first sliding rod (61) is fixedly connected with the punching plate (62), the third return spring (63) is connected between the punching plate (62) and the first sliding rod (61), and the wedge-shaped frame (64) is arranged on the conveying belt (2);

the protective plate device comprises a protective plate frame (41), and is characterized by further comprising a control plate device (7), wherein the control plate device (7) is arranged on the protective plate frame (41), the control plate device (7) comprises a sliding frame (71), a second sliding rod (72), a fourth reset spring (73), a first rack (74), a fourth fixed plate (75), a gear (76), a second rack (77) and a fifth fixed plate (78), two second sliding rods (72) are arranged on two sides of the protective plate frame (41), the sliding frame (71) is connected on the two second sliding rods (72) in a sliding mode, the fifth fixed plate (78) is connected on the two second sliding rods (72) in a sliding mode, the fourth reset spring (73) is connected between the sliding frame (71) and the protective plate frame (41), the fourth reset spring (73) is also connected between the fifth fixed plate (78) and the protective plate frame (41), the first rack (74) is arranged at one end of the sliding frame (71), a fourth fixing plate (75) is arranged on one side of the protecting plate frame (41), a gear (76) is connected to the fourth fixing plate (75) in a rotating mode, one side of the gear (76) is meshed with the first rack (74), a second rack (77) is arranged at one end of the fifth fixing plate (78), and the other side of the gear (76) is meshed with the second rack (77).

2. The perforating device for adding the protective plate and pasting the adhesive tape on the PCB production line as claimed in claim 1, wherein: still including roll-in device (8), on braced frame (1) was located in roll-in device (8), roll-in device (8) are including mount (81), slider (82), second dead lever (83), live-rollers (84) and fifth reset spring (85), be equipped with mount (81) on braced frame (1), sliding connection has second dead lever (83) on mount (81), second dead lever (83) one end rigid coupling has slider (82), second dead lever (83) other end rotary type is connected with live-rollers (84), be connected with fifth reset spring (85) between slider (82) and mount (81).

3. The perforating device for adding the protective plate and pasting the adhesive tape on the PCB production line as claimed in claim 2, wherein: the rubber stripping machine further comprises a rubber stripping block (9), the rubber stripping block (9) is arranged at the top of the second fixing strip (54), and the bottom of the rubber stripping block (9) is in contact with the conveying belt (2).