CN114051322A

CN114051322A - Automatic cutting machine for circuit PCB

Info

Publication number: CN114051322A
Application number: CN202111344071.XA
Authority: CN
Inventors: 蒲超; 吴礼龙
Original assignee: Shenzhen Shenkai Electronic Co ltd
Current assignee: Shenzhen Shenkai Electronic Co ltd
Priority date: 2021-11-15
Filing date: 2021-11-15
Publication date: 2022-02-15

Abstract

The application discloses an automatic cutting machine for a circuit PCB, which belongs to the technical field of cutting machines for PCBs and comprises an installation box, wherein a first installation plate and a second installation plate are arranged on the inner side wall of the installation box in a sliding manner; two-way lead screw is installed to the install bin internal rotation, and two-way lead screw one end is worn to locate first mounting panel and with first mounting panel screw-thread fit, the two-way lead screw other end is worn to locate the second mounting panel and with second mounting panel screw-thread fit, is provided with the runner assembly who is used for driving two-way lead screw rotatory on the install bin. This application has the effect that makes automatic cutting machine can adapt to the PCB board of different thickness.

Description

Automatic cutting machine for circuit PCB

Technical Field

The application relates to the technical field of PCB cutting machines, in particular to an automatic cutting machine for a circuit PCB.

Background

The PCB, which is called a printed circuit board in chinese, is an important electronic component, a support for an electronic component, and a carrier for electrical connection of the electronic component. When the PCB is produced, an operator is required to firstly cut the PCB, namely, a large sheet of plate material is cut into small pieces meeting the requirements, and a factory usually cuts the PCB by using a cutting machine.

In the related art, chinese patent application with publication number CN111673827A discloses an automatic cutting machine for circuit PCB boards, which comprises a fixed box, two feeding rollers movably mounted on the left side inside the fixed box, two driving rollers movably mounted inside the fixed box and located on the right side of the feeding rollers, and a cutting knife movably sleeved outside the driving rollers.

To the above-mentioned correlation technique, the inventor thinks that the distance between two feed rollers is certain, so above-mentioned automatic cutting machine can only carry out the cutting process to the PCB panel of a thickness, and when the thickness of PCB panel exceeded the distance between two feed rollers, the PCB panel can't get into fixed incasement, then automatic cutting machine can't work.

Disclosure of Invention

In order to make automatic cutting machine can adapt to the PCB board of different thickness, this application provides a circuit PCB board's automatic cutting machine.

The application provides a material machine is driven in automation of circuit PCB board adopts following technical scheme:

an automatic cutting machine for a circuit PCB board comprises an installation box, openings are arranged at two sides of the installation box, a first conveyor belt is arranged at the opening on one side of the installation box in a butt joint mode, a second conveyor belt is arranged at the opening on the other side of the installation box in a butt joint mode, a first mounting plate and a second mounting plate are arranged on the inner side wall of the mounting box in the length direction in a sliding manner, a first feeding roller is rotatably arranged at the end part of the first mounting plate close to the first conveyor belt, a first driving roller is rotatably arranged at the end part of the first mounting plate close to the second conveyor belt, a second feeding roller is rotatably arranged at the end part of the second mounting plate close to the first conveyor belt, a second driving roller is rotatably arranged on the end part of the second mounting plate close to the second conveyor belt, the first driving roller is provided with a dividing knife, and the second driving roller is provided with a knife rest matched with the dividing knife; two-way lead screw is installed to the install bin internal rotation, two-way lead screw one end is worn to locate first mounting panel and with first mounting panel screw-thread fit, the two-way lead screw other end is worn to locate the second mounting panel and with second mounting panel screw-thread fit, be provided with on the install bin and be used for the drive the rotatory runner assembly of two-way lead screw.

By adopting the technical scheme, the PCB is conveyed into the installation box by the first conveying belt, the first feeding roller and the second feeding roller are arranged to facilitate the auxiliary entering of the PCB into the installation box, the rotation of the first driving roller enables the dividing cutter to rotate, the matching of the dividing cutter and the cutter frame facilitates the cutting process of the PCB, and the second conveying belt conveys the divided PCB to the next process; operating personnel starts the runner assembly, and the runner assembly makes two-way lead screw rotate, and two-way lead screw rotates and makes first mounting panel and second mounting panel reverse motion or move in opposite directions, and then makes things convenient for operating personnel to control the distance between first feed roller and the second feed roller to make automatic cutting machine can adapt to the PCB board of different thickness.

Preferably, the runner assembly is located including fixed cover worm wheel on the two-way lead screw, wear to locate in the install bin and with worm wheel intermeshing's worm and fixed mounting in rotate the motor on the install bin, the worm with the install bin rotates and is connected, rotate the output shaft of motor with worm fixed connection.

Through adopting above-mentioned technical scheme, operating personnel starts the rotation motor, and the output shaft that rotates the motor rotates and drives the worm and rotate, and the worm rotates and makes the worm wheel rotate, and the worm wheel rotates and makes two-way lead screw rotate, and two-way lead screw rotates and makes things convenient for operating personnel to control the distance between first mounting panel and the second mounting panel.

Preferably, the guide bar is installed to the installation box internal rotation, and guide bar one end is worn to locate in the first mounting panel and with the cooperation of sliding of first mounting panel, the guide bar other end is worn to locate in the second mounting panel and with the cooperation of sliding of second mounting panel.

Through adopting above-mentioned technical scheme, the setting up of guide bar provides the guide effect for the removal of first mounting panel, second mounting panel, and the setting up of guide bar makes the removal of first mounting panel, second mounting panel more smooth and easy.

Preferably, a first rotating pipe penetrates through the first driving roller, a second rotating pipe penetrates through the second driving roller, and a servo motor is installed on the installation box; be provided with on the install bin and be used for the drive first drive roller with second drive roller pivoted drive assembly, drive assembly locates including fixed cover first driven pulleys on the first rotating tube, fixed cover are located second driven pulleys on the second rotating tube, fixed cover are located last driving pulley of servo motor output shaft, driving pulley, first driven pulleys with around being equipped with the belt between the second driven pulleys, be provided with the adjusting part who is used for adjusting driving pulley position in vertical direction on the install bin.

By adopting the technical scheme, an operator starts the servo motor, the servo motor rotates to enable the driving belt wheel to rotate, the driving belt wheel drives the first driven belt wheel and the second driven belt wheel to rotate through the belt, the first driven belt wheel rotates to enable the first rotating pipe to rotate, and the first rotating pipe rotates to enable the first driving roller to rotate; the second driven pulley rotates and makes the second rotating tube rotate, and the second rotating tube rotates and makes the second drive roller rotate, and then makes cut apart sword and knife rest cooperation and open the material to PCB, and the setting up of adjusting part makes things convenient for operating personnel to adjust driving pulley's position to make driving pulley adapt to the distance change between first driven pulley and the second driven pulley.

Preferably, the adjusting component comprises a dovetail block arranged to slide and penetrate through the mounting box and a tension spring fixedly connected to the dovetail block; the outer side wall of the installation box, which is close to the first driven belt wheel, is vertically provided with a dovetail groove which is used for being matched with the dovetail block in a sliding mode, the dovetail block is fixedly connected with the servo motor, and the end portion of the dovetail block, which is far away from the tension spring, is fixedly connected with the inner side wall of the dovetail groove.

Through adopting above-mentioned technical scheme, being provided with of forked tail piece and dovetail does benefit to at the fixed servo motor of install bin, and the setting of extension spring makes things convenient for the position of automatically regulated servo motor and driving pulley to make the belt unanimous keep the tensioning state.

Preferably, the slip cap is equipped with a plurality of installations that are used for on the first drive roller the blade holder of cut-apart sword, wear to be equipped with the multiunit in the first drive roller be used for with blade holder grafting cooperation plug block, a set of plug block includes two plug blocks that set up side by side, be provided with on the first drive roller and be used for driving adjacent two the promotion subassembly that plug block removed, seted up on the periphery of first drive roller be used for with plug block matched with guide way slides.

Through adopting above-mentioned technical scheme, setting up of guide way provides the guide effect for the grafting piece, and operating personnel confirms earlier the interval between the cut apart sword, and operating personnel utilizes drive assembly to make the grafting piece insert in the blade holder according to the interval setting between the cut apart sword after that to the position of fixed blade holder and cut apart sword, the setting of drive assembly and grafting piece makes things convenient for operating personnel to adjust the interval between the cut apart sword.

Preferably, the pushing assembly comprises a driving motor fixedly mounted on the first driving roller, a rotating rod penetrating through the first rotating pipe and rotatably connected with the first rotating pipe, a rotating gear slidably sleeved on the rotating rod, and a rack fixedly connected to the insertion block, the rotating rod is fixedly connected with an output shaft of the driving motor, the rotating gear is meshed with the rack, and positioning blocks for limiting the position of the rotating gear are arranged on two sides of the rack; fixedly connected with card strip on the length direction of dwang outer peripheral face, seted up on the inside wall of slewing gear be used for with card strip complex draw-in groove that slides.

By adopting the technical scheme, an operator starts the driving motor, an output shaft of the driving motor rotates to drive the rotating rod to rotate, the rotating rod enables the rotating gear to rotate through the matching of the clamping strip and the clamping groove, the rotating gear rotates to enable the rack to move, the rack moves to push the inserting block to move, and finally the inserting block is inserted into the cutter holder; the setting of locating piece is favorable to strengthening being connected between rack and the rotating gear on the one hand, and when operating personnel removed the grafting piece, the grafting piece removed and drives the rack and remove, and the rack makes the rotating gear remove along the length direction of rotating rod through the cooperation of locating piece, and the distance between the driven operating personnel of making things convenient for adjusts the rotating gear.

Preferably, the insertion block is sleeved with an anti-slip block, the anti-slip block is arranged between the positioning block and the inner side wall of the first rotating pipe, and one end, far away from the positioning block, of the anti-slip block is attached to and abutted against the inner side wall of the first rotating pipe.

Through adopting above-mentioned technical scheme, when operating personnel drive rack removal and make the grafting piece insert the blade holder, rack removal drive locating plate removes, and the locating plate removes and drives the non-slipping spur removal to make the non-slipping spur and the inside wall butt of first rotation pipe, and then the position of fixed rotating gear and rack.

In summary, the present application includes at least one of the following beneficial technical effects:

an operator starts the rotating assembly, the rotating assembly enables the bidirectional screw rod to rotate, the bidirectional screw rod rotates to enable the first mounting plate and the second mounting plate to move in a reverse direction or in a direction opposite to each other, and therefore the operator can conveniently control the distance between the first feeding roller and the second feeding roller, and the automatic cutting machine can adapt to PCBs with different thicknesses;

the PCB is cut by the cooperation of the dividing knife and the knife rest, and the position of the driving belt wheel is convenient for an operator to adjust by the arrangement of the adjusting assembly, so that the driving belt wheel adapts to the change of the distance between the first driven belt wheel and the second driven belt wheel;

the dovetail block and the dovetail groove are arranged to facilitate fixing of the servo motor on the installation box, and the tension spring is arranged to facilitate automatic adjustment of the positions of the servo motor and the driving pulley, so that the belt is kept in a tensioning state consistently.

Drawings

Fig. 1 is a schematic structural diagram of an automatic cutting machine for a circuit PCB according to an embodiment of the present application.

Fig. 2 is a schematic structural diagram of an installation box according to an embodiment of the present application.

Fig. 3 is a schematic structural view of a first driving roller according to an embodiment of the present application.

Fig. 4 is an enlarged schematic view at a in fig. 2.

Fig. 5 is an enlarged schematic view at C in fig. 3.

Fig. 6 is an enlarged schematic view at B in fig. 2.

Description of reference numerals:

1. installing a box; 11. a mounting cavity; 12. a first mounting plate; 13. a second mounting plate; 131. a connecting gear; 14. a first feed roll; 15. a second feed roll; 151. positioning a rod; 152. a driven gear; 16. a first driving roller; 161. a guide groove; 162. a first rotation pipe; 1621. a chute; 17. a second driving roller; 171. a second rotating tube; 172. a driving gear; 173. a tool holder; 174. a limiting groove; 18. a bidirectional screw rod; 19. a guide bar; 2. a platform; 21. a first conveyor belt; 22. a second conveyor belt; 23. a lifting platform; 24. a first electric push rod; 3. a guide assembly; 31. a fixing plate; 32. a second electric push rod; 33. a mounting frame; 34. an auxiliary roller; 4. a rotating assembly; 41. a worm gear; 42. a worm; 43. rotating the motor; 5. a tool apron; 51. a dividing knife; 52. inserting grooves; 53. an insertion block; 6. a pushing assembly; 61. a servo motor; 62. rotating the rod; 621. clamping the strip; 63. a rotating gear; 631. a card slot; 64. a rack; 641. positioning blocks; 642. anti-skid blocks; 7. a drive assembly; 71. a first driven pulley; 72. a second driven pulley; 73. a driving pulley; 74. a drive motor; 75. a belt; 8. an adjustment assembly; 81. a dovetail block; 82. a tension spring; 83. a dovetail groove.

Detailed Description

The present application is described in further detail below with reference to figures 1-6.

The embodiment of the application discloses automatic cutting machine of circuit PCB board. Referring to fig. 1 and 2, the automatic cutting machine for circuit PCB boards includes a mounting case 1.

Referring to fig. 1 and 2, an installation box 1 is horizontally arranged, a platform 2 is arranged at the bottom of the installation box 1, and the bottom surface of the installation box 1 is fixedly connected with the upper surface of the platform 2. Two opposite sides on 1 length direction of install bin all are provided with the opening, and 1 one side opening part butt joint of install bin is provided with

first conveyer belt

21, and 1 opposite side opening part butt joint of install bin is provided with second conveyer belt 22, first conveyer belt 21 and second conveyer belt 22 symmetrical arrangement. The bottoms of the first conveyor belt 21 and the second conveyor belt 22 are both provided with lifting tables 23, the length direction of each lifting table 23 is consistent with that of the platform 2, four first electric push rods 24 are arranged between each lifting table 23 and the platform 2, and the four first electric push rods 24 are respectively arranged at four corners of each lifting table 23. A piston rod of the first electric push rod 24 is fixedly connected with the bottom surface of the lifting platform 23, and the end part of the first electric push rod 24 far away from the piston rod is fixedly connected with the upper surface of the platform 2.

Referring to fig. 1, the first conveyor belt 21 and the second conveyor belt 22 are provided with guide assemblies 3, the guide assemblies 3 are provided in four groups, and a group of guide assemblies 3 is disposed on both sides of the first conveyor belt 21 and both sides of the second conveyor belt 22. The guide assemblies 3 include a fixing plate 31, a second electric push rod 32, a mounting frame 33 and an auxiliary roller 34, the length direction of the fixing plate 31 is consistent with the length direction of the first conveyor belt 21, the fixing plates 31 of the two sets of guide assemblies 3 are mounted on the first conveyor belt 21, and the fixing plates 31 of the two sets of guide assemblies 3 are mounted on the second conveyor belt 22. The second electric push rod 32 is disposed on the side surfaces of the two fixing plates 31 located on the same side of the installation box 1, which are far away from each other, and the piston rod of the second electric push rod 32 passes through the fixing plates 31 and is in sliding fit with the fixing plates 31. The mounting bracket 33 is fixedly connected with the piston rod of the second electric push rod 32, and the length direction of the mounting bracket 33 is consistent with the length direction of the fixing plate 31. The auxiliary rollers 34 are disposed on a side surface of the mounting frame 33 away from the fixing plate 31, the auxiliary rollers 34 are rotatably connected to the mounting frame 33, the plurality of auxiliary rollers 34 are disposed, and the plurality of auxiliary rollers 34 are uniformly arranged along a length direction of the mounting frame 33. The guide assembly 3 is arranged to route the PCB into the mounting box 1.

Referring to fig. 1 and 2, mounting cavities 11 are formed in the side walls of the two sides of the mounting box 1 in the width direction, and openings of the mounting cavities 11 are rectangular. Be provided with two first mounting panels 12 in the installing box 1, a first mounting panel 12 slides and sets up on the inside wall of an installing cavity 11, and another first mounting panel 12 slides and sets up on the inside wall of another installing cavity 11 of installing box 1, two first mounting panels 12 symmetrical arrangement. Be provided with two second mounting panels 13 in the install bin 1, two second mounting panels 13 and two first mounting panels 12 one-to-one, second mounting panel 13 sets up in first mounting panel 12 below, and second mounting panel 13 and the inside wall of installation cavity 11 cooperation of sliding.

Referring to fig. 2 and 3, a first feed roller 14 and a first driving roller 16 are rotatably mounted between the two first mounting plates 12, and the length directions of the first feed roller 14 and the first driving roller 16 are both consistent with the length direction of the mounting box 1. The first feed roller 14 is disposed at an end of the first mounting plate 12 near the first conveyor belt 21, and the first drive roller 16 is disposed at an end of the first mounting plate 12 near the second conveyor belt 22. A second feeding roller 15 and a second driving roller 17 are rotatably mounted between the two second mounting plates 13, the length directions of the second feeding roller 15 and the second driving roller 17 are consistent with the length direction of the first feeding roller 14, the second feeding roller 15 is correspondingly matched with the first feeding roller 14, and the second driving roller 17 is correspondingly matched with the first driving roller 16.

Referring to fig. 2 and 4, a bidirectional screw rod 18 vertically penetrates through the installation box 1, one end of the bidirectional screw rod 18 penetrates through the first installation plate 12, the other end of the bidirectional screw rod 18 penetrates through the second installation plate 13, one end of the bidirectional screw rod 18 is in threaded fit with the first installation plate 12, and the other end of the bidirectional screw rod 18 is in threaded fit with the second installation plate 13. The mounting box 1 is provided with a rotating assembly 4 for driving the bidirectional screw rod 18 to rotate, the rotating assembly 4 comprises a worm wheel 41, a worm 42 and a rotating motor 43, the worm wheel 41 is sleeved on the end part of the bidirectional screw rod 18 far away from the second mounting plate 13, and the worm wheel 41 is fixedly connected with the bidirectional screw rod 18. The rotating motor 43 is arranged on the outer side wall of the installation box 1 close to the bidirectional screw rod 18, the rotating motor 43 is fixedly connected with the installation box 1, an output shaft of the rotating motor 43 is fixedly connected with the worm 42, and the axis of the output shaft of the rotating motor 43 is overlapped with the axis of the worm 42. The end of the worm 42 remote from the rotation motor 43 intermeshes with the worm wheel 41.

Referring to fig. 1 and 2, four guide rods 19 are vertically arranged in the installation box 1, the four guide rods 19 are arranged in the installation box 1 in a matrix manner, the bottom of each guide rod 19 is rotatably connected with the inner bottom surface of the installation cavity 11, and the upper surface of each guide rod 19 is rotatably connected with the inner top surface of the installation cavity 11. The upper end of guide bar 19 wears to locate in first mounting panel 12, and guide bar 19 and first mounting panel 12 sliding fit, and the lower extreme of guide bar 19 wears to locate in second mounting panel 13, and guide bar 19 and second mounting panel 13 sliding fit. The arrangement of the guide rod 19 provides a guiding function for the first mounting plate 12 and the second mounting plate 13, and the arrangement of the guide rod 19 enables the first mounting plate 12 and the second mounting plate 13 to move more smoothly.

Referring to fig. 2 and 4, when an operator starts the rotating motor 43, an output shaft of the rotating motor 43 rotates to enable the worm 42 to rotate, the worm 42 rotates to enable the worm wheel 41 to rotate, the worm wheel 41 rotates to enable the bidirectional screw rod 18 to rotate, the bidirectional screw rod 18 rotates to enable the first mounting plate 12 and the second mounting plate 13 to move in opposite directions, and when the operator enables the rotating motor 43 to rotate in opposite directions, the bidirectional screw rod 18 rotating in opposite directions enables the first mounting plate 12 and the second mounting plate 13 to move in opposite directions. The distance between first mounting panel 12 and the second mounting panel 13 changes and makes the distance change between the second mounting panel 13 to make things convenient for operating personnel to adjust the distance between first mounting panel 12 and the second mounting panel 13, and then make automatic cutting machine can adapt to the PCB board of different thickness.

Referring to fig. 3 and 5, two guide grooves 161 are formed in the circumferential surface of the first driving roller 16, and the longitudinal direction of the guide grooves 161 coincides with the longitudinal direction of the first driving roller 16. A first rotation pipe 162 is inserted into the first driving roller 16, the first rotation pipe 162 has a hollow tubular shape, a longitudinal direction of the first rotation pipe 162 coincides with a longitudinal direction of the first driving roller 16, and the first rotation pipe 162 is fixedly connected to the first driving roller 16. Two sliding grooves 1621 are formed in the circumferential surface of the first rotating pipe 162, the length direction of the sliding grooves 1621 is the same as the length direction of the first rotating pipe 162, and the two sliding grooves 1621 correspond to the two guide grooves 161 one by one.

Referring to fig. 3 and 5, the first driving roller 16 is sleeved with three tool holders 5, the three tool holders 5 are arranged at intervals, the inner side walls of the tool holders 5 are slidably matched with the circumferential surface of the first driving roller 16, and the outer circumferential surfaces of the three tool holders 5 are provided with dividing tools 51. The second driving roller 17 is sleeved with three tool rests 173, the three tool rests 173 correspond to the three dividing knives 51 one by one, the inner side wall of the tool rest 173 is in sliding fit with the circumferential surface of the second driving roller 17, and the circumferential surface of the tool rest 173 is provided with a limiting groove 174 for accommodating the dividing knives 51. Two inserting grooves 52 are formed in the inner side walls of the three tool holders 5, the cross sections of the inserting grooves 52 are rectangular, and the two inserting grooves 52 correspond to the two guide grooves 161 one by one. The first driving roller 16 is provided with a plurality of sets of insertion blocks 53, and the plurality of sets of insertion blocks 53 correspond to the plurality of tool holders 5 one by one. A set of insertion block 53 includes two insertion blocks 53 of arranging side by side, a set of two adjacent insertion blocks 53 and two guide ways 161 one-to-one, insertion block 53 one end is passed through in spout 1621 extends to first rotation pipe 162, insertion block 53's lateral wall and spout 1621's inside wall sliding fit, insertion block 53 other end passes through in the guide ways 161 inserts the insertion grooves 52 of base, insertion block 53's lateral wall and guide ways 161's inside wall sliding fit.

Referring to fig. 2 and 5, the first driving roller 16 is provided with the pushing assembly 6, the pushing assembly 6 includes a servo motor 61, a rotating rod 62, a rotating gear 63 and a rack 64, the servo motor 61 is disposed on a side surface of the first driving roller 16 close to the rotating motor 43, the rotating rod 62 is disposed in the first rotating pipe 162 in a penetrating manner, a length direction of the rotating rod 62 is consistent with a length direction of the first rotating pipe 162, one end of the rotating rod 62 is rotatably connected with the first driving roller 16, and the other end of the rotating rod 62 is fixedly connected with an output shaft of the servo motor 61. Fixedly connected with card strip 621 on dwang 62, the length direction of card strip 621 is unanimous with the length direction of dwang 62, and on the dwang 62 was located to the running gear 63 sliding sleeve, draw-in groove 631 had been seted up on the running gear 63 inside wall, the inside wall sliding fit of fixture block and draw-in groove 631. The rotating gears 63 are provided in three numbers, and the three rotating gears 63 correspond to the three sets of insertion blocks 53 one by one.

Referring to fig. 2 and 5, the rack 64 is disposed at an end portion of the insertion block 53 away from the tool holder 5, the rack 64 is fixedly connected with the insertion block 53, and the rack 64 is engaged with the rotating gear 63. Both sides of the rack 64 are fixedly connected with positioning blocks 641, the length direction of the positioning blocks 641 is consistent with that of the rack 64, and the side surface of the positioning plate close to the rack 64 is in sliding fit with the rotating gear 63. The insertion block 53 is sleeved with an anti-slip block 642, the anti-slip block 642 is fixedly connected with the insertion block 53, the anti-slip block 642 is arranged between the positioning block 641 and the inner side wall of the first rotating pipe 162, the anti-slip block 642 is fixedly connected with the positioning block 641, and the anti-slip block 642 is attached to and abutted against the inner side wall of the first rotating pipe 162. The anti-slip block 642 is disposed to improve the friction between the positioning block 641 and the inner sidewall of the first rotation tube 162, so as to fix the positions of the rotation gear 63 and the rack 64. An operator starts the servo motor 61, the servo motor 61 rotates to enable the rotating rod 62 to rotate, the rotating rod 62 rotates to enable the rotating gear 63 to rotate, the rotating gear 63 rotates to enable the gear to move, the rack 64 moves to drive the inserting block 53 to move, and the inserting block 53 is inserted into the inserting groove 52 of the tool apron 5, so that the tool apron 5 is locked; the rack 64 moves on the other hand to move the positioning block 641, the positioning block 641 moves until the anti-slip block 642 abuts against the inner side wall of the first rotating pipe 162, the arrangement of the anti-slip block 642 and the positioning block 641 is beneficial to facilitating an operator to adjust the positions of the tool apron 5 and the dividing knife 51, and the movement of the dividing knife 51 drives the tool rest 173 to move.

Referring to fig. 2 and 6, a second rotating pipe 171 is inserted into the second driving roller 17, and the second rotating pipe 171 is fixedly connected to the second driving roller 17. The end of the second rotating pipe 171 extending out of the second driving roller 17 penetrates the second mounting plate 13, and the second rotating pipe 171 is rotatably connected to the second mounting plate 13. The mounting box 1 is provided with a driving assembly 7, and the driving assembly 7 includes a first driven pulley 71, a second driven pulley 72, and a driving pulley 73. The end of the first driving roller 16 extending out of the first rotation tube 162 penetrates through the first mounting plate 12, the first rotation tube 162 is rotatably connected to the first mounting plate 12, the first driven pulley 71 is sleeved on the end of the first rotation tube 162 extending out of the first mounting plate 12, and the first driven pulley 71 is fixedly connected to the first rotation tube 162. The second driven pulley 72 is sleeved on the second rotating pipe 171 and extends out of the end of the second rotating pipe 171, and the second driven pulley 72 is fixedly connected with the second rotating pipe 171. The side surface of the installation box 1 close to the first driven pulley 71 is provided with a driving motor 74, the driving pulley 73 is sleeved on an output shaft of the driving motor 74, the driving pulley 73 is fixedly connected with the output shaft of the driving motor 74, and a belt 75 is wound among the driving pulley 73, the first driven pulley 71 and the second driven pulley 72. The operator starts the driving motor 74, the output shaft of the driving motor 74 rotates to drive the driving pulley 73 to rotate, and the driving pulley 73 rotates the first driven pulley 71 and the second driven pulley 72 via the belt 75.

Referring to fig. 2 and 6, an adjusting assembly 8 is arranged on the side surface of the mounting box 1 close to the first driven pulley 71, the adjusting assembly 8 includes a dovetail block 81 and a tension spring 82, a dovetail groove 83 is formed on the side surface of the mounting box 1 close to the first driven pulley 71, the dovetail groove 83 is vertically arranged, and the inner side wall of the dovetail groove 83 is matched with the dovetail block 81 in a sliding manner. The side of the dovetail block 81 remote from the first drive roller 16 is fixedly connected to the drive motor 74. The tension spring 82 is arranged in the dovetail groove 83, one end of the tension spring 82 is fixedly connected with the dovetail block 81, and the other end of the tension spring 82 is fixedly connected with the inner end face of the dovetail groove 83.

Referring to fig. 1 and 2, the second rotating tube 171 is sleeved with a driving gear 172, and the driving gear 172 is fixedly connected with the second rotating tube 171. A positioning rod 151 penetrates through the second feeding roller 15, the positioning rod 151 is fixedly connected with the second feeding roller 15, the end part, extending out of the second feeding roller 15, of the positioning rod 151 penetrates through the second mounting plate 13, the positioning rod 151 is rotatably connected with the second mounting plate 13, a driven gear 152 is sleeved on the end part, close to the driving gear 172, of the positioning rod 151, and the driven gear 152 is fixedly connected with the positioning rod 151. The second mounting plate 13 is rotatably mounted with a connecting gear 131 on a side surface close to the driven gear 152, the connecting gear 131 is disposed between the driving gear 172 and the driven gear 152, the connecting gear 131 is engaged with the driving gear 172, and the connecting gear 131 is engaged with the driven gear 152. When the operator uses the driving motor 74 to rotate the second rotating tube 171, the second rotating tube 171 rotates the driving gear 172, the driving gear 172 rotates the connecting gear 131, the connecting gear 131 rotates the driven gear 152, the driven gear 152 rotates the positioning rod 151, and the positioning rod 151 rotates the second feeding tube, so that the auxiliary PCB enters the installation box 1.

The implementation principle of the automatic cutting machine for the circuit PCB board in the embodiment of the application is as follows: the PCB is conveyed into the installation box 1 by the first conveying belt 21, an operator utilizes the driving assembly 7 to enable the first driving roller 16, the second driving roller 17 and the second feeding roller 15 to rotate, the first feeding roller 14 and the second feeding roller 15 are arranged to facilitate the auxiliary PCB to enter the installation box 1, the first driving roller 16 rotates to enable the dividing cutter 51 to rotate, the cooperation of the dividing cutter 51 and the cutter rest 173 facilitates the cutting process of the PCB, and the second conveying belt 22 conveys the divided PCB to the next process; an operator starts the rotating assembly 4, the rotating assembly 4 enables the bidirectional screw rod 18 to rotate, the bidirectional screw rod 18 rotates to enable the first mounting plate 12 and the second mounting plate 13 to move in the opposite direction or move in the opposite direction, and then the operator can control the distance between the first feeding roller 14 and the second feeding roller 15 conveniently, so that the automatic cutting machine can adapt to PCBs with different thicknesses.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides an automatic cutting machine of circuit PCB board, includes install bin (1), install bin (1) both sides opening, install bin (1) one side opening part butt joint is provided with first conveyer belt (21), install bin (1) opposite side opening part butt joint is provided with second conveyer belt (22), its characterized in that: a first mounting plate (12) and a second mounting plate (13) are arranged on the inner side wall of the mounting box (1) in the length direction in a sliding mode, a first feeding roller (14) is rotatably mounted at the end portion, close to a first conveying belt (21), of the first mounting plate (12), a first driving roller (16) is rotatably mounted at the end portion, close to a second conveying belt (22), of the first mounting plate (12), a second feeding roller (15) is rotatably mounted at the end portion, close to the first conveying belt (21), of the second mounting plate (13), a second driving roller (17) is rotatably mounted at the end portion, close to the second conveying belt (22), of the second mounting plate (13), a dividing knife (51) is mounted on the first driving roller (16), and a knife rest (173) matched with the dividing knife (51) is arranged on the second driving roller (17); two-way lead screw (18) are installed to install box (1) internal rotation, two-way lead screw (18) one end is worn to locate first mounting panel (12) and with first mounting panel (12) screw-thread fit, two-way lead screw (18) other end is worn to locate second mounting panel (13) and with second mounting panel (13) screw-thread fit, be provided with on install box (1) and be used for the drive rotatory runner assembly (4) of two-way lead screw (18).

2. The automatic cutting machine for the circuit PCB as claimed in claim 1, wherein: the rotating assembly (4) comprises a worm wheel (41) fixedly sleeved on the bidirectional screw rod (18), a worm (42) which is arranged in the installation box (1) in a penetrating mode and is meshed with the worm wheel (41), and a rotating motor (43) fixedly installed on the installation box (1), wherein the worm (42) is rotatably connected with the installation box (1), and an output shaft of the rotating motor (43) is fixedly connected with the worm (42).

3. The automatic cutting machine for the circuit PCB as claimed in claim 1, wherein: guide bar (19) are installed to install box (1) internal rotation, and guide bar (19) one end is worn to locate in first mounting panel (12) and with first mounting panel (12) cooperation of sliding, guide bar (19) other end is worn to locate in second mounting panel (13) and with second mounting panel (13) cooperation of sliding.

4. The automatic cutting machine for the circuit PCB as claimed in claim 1, wherein: a first rotating pipe (162) penetrates through the first driving roller (16), a second rotating pipe (171) penetrates through the second driving roller (17), and a servo motor (61) is installed on the installation box (1); be provided with on install bin (1) and be used for the drive first drive roller (16) with second drive roller (17) pivoted drive assembly (7), drive assembly (7) are located including fixed cover first driven pulleys (71), fixed cover on first rotation pipe (162) are located second driven pulleys (72), fixed cover on second rotation pipe (171) are located servo motor (61) epaxial driving pulley (73) of output, driving pulley (73), first driven pulleys (71) and around being equipped with belt (75) between second driven pulleys (72), be provided with on install bin (1) and be used for adjusting means (8) of driving pulley (73) position in vertical direction.

5. The automatic cutting machine for the circuit PCB as claimed in claim 4, wherein: the adjusting assembly (8) comprises a dovetail block (81) arranged to penetrate through the installation box (1) in a sliding mode and a tension spring (82) fixedly connected to the dovetail block (81); install bin (1) be close to on the lateral wall of first driven pulley (71) vertically seted up be used for with dovetail block (81) complex dovetail (83) that slides, dovetail block (81) with servo motor (61) fixed connection, extension spring (82) are kept away from the tip of dovetail block (81) with the inside wall fixed connection of dovetail (83).

6. The automatic cutting machine for the circuit PCB as claimed in claim 4, wherein: sliding sleeve is equipped with a plurality of installations on first drive roller (16) blade holder (5) of dividing sword (51), wear to be equipped with the multiunit in first drive roller (16) be used for with blade holder (5) are pegged graft cooperation plug block (53), and are a set of plug block (53) include two plug block (53) that set up side by side, be provided with on first drive roller (16) and be used for driving adjacent two push assembly (6) that plug block (53) removed, seted up on the periphery of first drive roller (16) be used for with plug block (53) complex guide way (161) that slides.

7. The automatic cutting machine for the circuit PCB as claimed in claim 6, wherein: the pushing assembly (6) comprises a driving motor (74) fixedly mounted on the first driving roller (16), a rotating rod (62) which is arranged in the first rotating pipe (162) in a penetrating mode and is connected with the first rotating pipe (162) in a rotating mode, a rotating gear (63) which is sleeved on the rotating rod (62) in a sliding mode, and a rack (64) fixedly connected to the inserting block (53), wherein the rotating rod (62) is fixedly connected with an output shaft of the driving motor (74), the rotating gear (63) is meshed with the rack (64), and positioning blocks (641) used for limiting the position of the rotating gear (63) are arranged on two sides of the rack (64); fixedly connected with card strip (621) on the length direction of dwang (62) outer peripheral face, seted up on the inside wall of rotating gear (63) be used for with card strip (621) sliding fit's draw-in groove (631).

8. The automatic cutting machine for the circuit PCB as claimed in claim 7, wherein: the anti-skidding blocks (642) are sleeved on the insertion blocks (53), the anti-skidding blocks (642) are arranged between the positioning block (641) and the inner side wall of the first rotating pipe (162), and one end, far away from the positioning block (641), of each anti-skidding block (642) is attached to and abutted against the inner side wall of the first rotating pipe (162).