CN211055943U

CN211055943U - Rotary-type corner machine

Info

Publication number: CN211055943U
Application number: CN201921973266.9U
Authority: CN
Inventors: 盛文源; 吴当
Original assignee: Xianning Nuobeijia Electromechanical Equipment Co ltd
Current assignee: Xianning Nuobeijia Electromechanical Equipment Co ltd
Priority date: 2019-11-14
Filing date: 2019-11-14
Publication date: 2020-07-21
Anticipated expiration: 2029-11-14

Abstract

The utility model provides a rotary-type corner machine belongs to electromechanical technical field. The corner machine comprises a rack and a rectangular machine shell fixed on the rack, wherein four side walls of the machine shell are respectively provided with a plate inlet and outlet, a conveying mechanism corresponding to the plate inlet and outlet is arranged in the machine shell, the conveying mechanism comprises a plurality of conveying rollers which are parallel to each other and a rectangular mounting frame, each conveying roller is rotatably connected to the mounting frame, a turntable is arranged on the machine shell and is driven by a driving motor I, the turntable is fixedly connected with the mounting frame, and the distance between the adjacent side walls on the machine shell is greater than the length of a diagonal line of the mounting frame; two ends of each conveying roller are respectively and fixedly provided with a gear, a toothed belt is connected between the gears positioned on the same side, and one conveying roller is driven by a driving motor III. The utility model has the advantages of can make the panel corner carry.

Description

Rotary-type corner machine

Technical Field

The utility model belongs to the technical field of electromechanics, a rotary-type corner machine is related to.

Background

In the production process of the PCB, the plates need to be conveyed to different stations and are limited by installation space or positions of all the machine stations, sometimes the plates need to be conveyed to a conveying line vertical to or overlapped with the plates after being turned, and at this time, a turning machine is needed to be used as a transfer machine station and used as a bearing between different conveying lines for changing the conveying direction of the plates.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the above-mentioned problem that prior art exists, provide a rotary-type corner machine, the utility model aims to solve the technical problem how realize turning to of panel and carry.

The purpose of the utility model can be realized by the following technical proposal: a rotary corner machine is characterized by comprising a rack and a rectangular casing fixed on the rack, wherein a plate inlet and outlet opening is formed in each of four side walls of the casing, a conveying mechanism corresponding to the plate inlet and outlet opening is arranged in the casing, the conveying mechanism comprises a plurality of conveying rollers which are parallel to each other and a rectangular mounting frame, each conveying roller is rotatably connected to the mounting frame, a rotary table is arranged on the casing and driven by a driving motor, the rotary table is fixedly connected with the mounting frame, and the distance between the adjacent side walls on the casing is greater than the length of a diagonal line of the mounting frame; two ends of each conveying roller are respectively and fixedly provided with a gear, a toothed belt is connected between the gears positioned on the same side, and one conveying roller is driven by a driving motor III.

The PCB enters the plane of each conveying roller from a board inlet and outlet at the position close to the inlet of the conveying mechanism, the driving motor III stops running after a sensor at the tail end of the conveying mechanism detects the board, the driving motor III stops running after a driving turntable rotates for 90 degrees or 270 degrees, then the driving motor III is started again, the board continues to run to another conveying line connected with the driving motor III, and the corner conveying of the board is finished.

In foretell rotary-type corner machine, be provided with a translation mechanism between mounting bracket and the carousel, translation mechanism includes translation support plate, screw rod, threaded connection connecting block on the screw rod and the rotatory driving motor two of driving screw, the translation support plate links to each other with the carousel is fixed, the connecting block links to each other with the mounting bracket is fixed, the fixed guide arm that is located the screw rod both sides respectively that is provided with two on the translation support plate, sliding connection has the sliding sleeve on the guide arm, the sliding sleeve links to each other with the translation support plate is fixed.

Because the mounting bracket needs the rotation in the casing, the interval has between the entrance of business turn over board mouth on the casing and conveying roller, in order to make panel seamless connection, need move the mounting bracket translation earlier and meet to the transfer chain that goes out with panel entering direction, before panel gets into conveying mechanism, need make the transfer chain remove to the business turn over board mouth department that corresponds through translation mechanism earlier, treat panel entering conveying mechanism after, translation mechanism resets, when going out the board, translation mechanism continues to drive conveying mechanism and removes to the business turn over board mouth department that is close to casing inner wall department.

In foretell rotary-type corner machine, link to each other through a backup pad is fixed between connecting block and the mounting bracket, the translation support plate links to each other with the carousel is fixed, and the backup pad links to each other with the outer fringe of mounting bracket is fixed, and the connecting block links to each other with the backup pad is fixed.

In the above-mentioned rotary type corner machine, the conveying mechanism further includes an inlet pinch roller and an outlet pinch roller, the inlet pinch roller is rotatably connected above the conveying roller at the inlet end of the mounting frame, the outlet pinch roller is rotatably connected above the conveying roller at the outlet end of the mounting frame, a gap is provided between the inlet pinch roller and the conveying roller corresponding to the inlet pinch roller, the outlet pinch roller is tightly pressed on the conveying roller corresponding to the outlet pinch roller, the outlet pinch roller is provided with a clutch assembly one, and the conveying roller corresponding to the outlet pinch roller is provided with a clutch assembly two;

the clutch assembly I comprises a sleeve I sleeved on the outlet pinch roller, the sleeve I is rotationally connected with the outlet pinch roller, a plurality of first sliding holes are uniformly formed in the outlet pinch roller along the circumferential direction of an axis, the outer end of the first sliding hole penetrates through the wall surface of the outlet pinch roller, the outer end of the first sliding hole inclines towards the rotating direction of the outlet pinch roller, a first locking block is connected in the first sliding hole in a sliding mode, the outer end of the first locking block can abut against the inner wall of the sleeve I, and a first tension spring is connected between the inner end of the first locking block and the inner wall of the first sliding hole;

the clutch assembly II comprises a sleeve II sleeved on the outlet pinch roller, the sleeve I is rotatably connected with the conveying roller, a plurality of sliding holes II are uniformly formed in the conveying roller along the circumferential direction of an axis, the outer ends of the sliding holes II penetrate through the wall surface of the conveying roller, the outer ends of the sliding holes II incline to the rotating direction of the conveying roller, a locking block II is connected in the sliding holes II in a sliding mode, the outer end of the locking block II can abut against the inner wall of the sleeve II, and a tension spring II is connected between the inner end of the locking block II and the inner wall of the sliding hole II;

the outer surfaces of the first sleeve and the second sleeve are attached with anti-slip layers made of rubber materials.

When the plate enters the conveying mechanism, the running speed of the plate is high, and inertia force exists, so that the plate needs to be immediately stopped after the driving motor stops running, the inertia force is eliminated, the plate is prevented from rushing out of the conveying mechanism, and the plate is prevented from being damaged.

Set up one respectively and utilize centrifugal force size to realize the clutch pack one and clutch pack two of separation and reunion, further say on the export pinch roller that conveying mechanism end set up and the conveying roller that corresponds with it: when panel gets into conveying mechanism with very fast speed, driving motor three after stopping transport in the twinkling of an eye, panel receives inertial force effect and continues to move, however, locking piece one and locking piece two are because of the reduction of centrifugal force, make sleeve one and sleeve two receive the inertial force effect of export pinch roller and conveying roller to reduce, and sleeve one and sleeve two are the rubber spare, and mutual extrusion, can be rapid break away from the inertial force effect of export pinch roller and conveying roller and stop transport, restriction panel passes through between export pinch roller and the conveying roller, after driving motor three starts, sleeve one and sleeve two receive the jam and keep synchronous operation of locking piece one and locking piece two, have "feeding" and "crowded effect into" to panel, can be with the steady transport conveying mechanism of panel.

The traditional method is as follows: set up the stopper at conveying mechanism end, this stopper shifts up in the twinkling of an eye at driving motor three stops to transport, block panel, move down when driving mechanism moves once more, vacate the space that panel continues to move, in order to avoid taking place comparatively strong striking between panel and the stopper, need set up brake mechanism on the conveying roller, make the conveying roller eliminate the inertial force of conveying roller at the moment of driving motor three stops to transport at once, but the inertial force of panel still can't be eliminated, still exist to the striking of panel, through the improvement of above-mentioned structure, behind the driving motor three stops to transport, sleeve one and sleeve two can rotate, but can not be driven by export pinch roller and conveying roller, can play fine buffering effect to panel after receiving the panel impact force, and can prevent that panel from receiving the impact and the front end perk, avoid the damage of panel and the dislocation of panel.

In foretell rotary-type corner machine, the fixed installation pincers that are located export pinch roller both ends respectively that are provided with on the mounting bracket, the installation pincers include two clamping pieces that are parallel to each other, the both ends of export pinch roller are provided with a gyro wheel respectively, form between two clamping pieces and allow gyro wheel male slot, are provided with a pressure components on two clamping pieces respectively, pressure components including set up on the clamping piece, with export pinch roller axis vertically mounting hole, the outer end threaded connection of mounting hole has an adjusting bolt, the other end sliding connection of mounting hole has a compact heap, be connected with a pressure spring under compression state between compact heap and the adjusting bolt, the downside of compact heap has the portion that compresses tightly with the outer wall adaptation of gyro wheel, the upside of compact heap has the leading-in portion with the portion symmetric distribution that compresses tightly.

The existence of the pressing part can reduce the rotating resistance of the roller, and can press down and position the slide collapse, the leading-in part and the pressing part have positive effects on the dismounting portability of the roller, and the adjusting bolt can adjust the pretightening force of the pressing spring and adjust the pressing force of the roller.

In foretell rotary-type corner machine, be provided with one on the translation support plate and carry out the mechanism of leading that corrects to the position of the panel on the conveying mechanism, lead just the mechanism including fixing driving motor four and two runners that are located translation support plate both ends respectively on the translation support plate, driving motor drives one of them runner four times, links to each other through a belt between two runners, the fixed two base plates that are provided with on the belt, two base plates connect respectively in the halving department of belt, the fixed a plurality of depression bars that are provided with on the base plate, the depression bar can move in the clearance between adjacent conveying roller, base plate sliding connection is on the translation support plate.

After panel got into conveying mechanism, probably because panel received the striking and takes place the dislocation, it is smooth and easy when leaving conveying mechanism for making panel, need be in the position placed in the middle to panel in direction of delivery, driving motor drives the belt rotation four times, makes two base plates be close to each other or keep away from each other to make the depression bar can be at the in-process that two base plates are close to each other and handle the panel on conveying mechanism placed in the middle, vacate panel entering conveying mechanism's space when two base plates are kept away from each other.

A speed reducing mechanism is arranged between the first driving motor and the rotary table, a hinged door is arranged at an opening at the upper end of the shell, and the hinged door is made of transparent materials, so that the plates can be observed conveniently and faults can be cleaned conveniently.

Drawings

Fig. 1 is a schematic perspective view of the present corner machine.

Fig. 2 is a schematic structural diagram of the corner turning machine with the casing removed.

Fig. 3 is a schematic perspective view of the conveying mechanism.

Figure 4 is a cross-sectional view of the outlet pinch roller and corresponding delivery roller.

FIG. 5 is a schematic view of the disassembled and assembled structure of the outlet pinch roller.

Fig. 6 is a schematic structural view of the pilot mechanism.

Fig. 7 is a schematic structural view of the correcting mechanism from another view angle.

Fig. 8 is a schematic perspective view of the first rotary table and a driving motor matched with the first rotary table.

Fig. 9 is a perspective view of the translation mechanism.

Fig. 10 is a schematic structural view of the support plate.

In the figure, 11, a frame; 12. a housing; 13. a plate inlet and outlet; 21. a conveying roller; 22. a mounting frame; 23. driving a motor III; 31. a turntable; 32. driving a motor I; 41. translating the carrier plate; 42. a screw; 43. a second driving motor; 44. a guide bar; 45. a sliding sleeve; 46. a support plate; 47. connecting blocks; 51. an inlet pinch roller; 52. an outlet pinch roller; 61. a first sleeve; 62. a first sliding hole; 63. a first locking block; 64. a first tension spring; 71. a second sleeve; 72. a second sliding hole; 73. a second locking block; 74. a tension spring II; 81. a clip; 82. a roller; 83. adjusting the bolt; 84. a compression block; 85. a compression spring; 86. a pressing part; 87. an introduction section; 91. driving a motor IV; 92. a belt; 93. a substrate; 94. a pressure lever.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1, 2, 3, 8, 9 and 10, the corner machine includes a frame 11 and a rectangular casing 12 fixed on the frame 11, four side walls of the casing 12 are respectively provided with a plate inlet and outlet 13, a conveying mechanism corresponding to the plate inlet and outlet 13 is arranged in the casing 12, the conveying mechanism includes a plurality of mutually parallel conveying rollers 21 and a rectangular mounting frame 22, each conveying roller 21 is rotatably connected to the mounting frame 22, the casing 12 is provided with a rotary disc 31, the rotary disc 31 is driven by a driving motor one 32, the rotary disc 31 is fixedly connected with the mounting frame 22, and the distance between the adjacent side walls on the casing 12 is greater than the length of the diagonal line of the mounting frame 22; two ends of each conveying roller 21 are respectively and fixedly provided with a gear, a toothed belt is connected between the gears positioned on the same side, and one conveying roller 21 is driven by a driving motor III 23.

The PCB enters the plane of each conveying roller 21 from a board inlet and outlet 13 at the position close to the inlet of the conveying mechanism, after a sensor at the tail end of the conveying mechanism detects the board, a driving motor III 23 stops running, a driving motor I32 drives a rotating disc 31 to rotate for 90 degrees or 270 degrees and then stops running, then the driving motor III 23 is started again, the board continues to run to another conveying line connected with the driving motor III, and the corner conveying of the board is finished.

A translation mechanism is arranged between the mounting frame 22 and the turntable 31, the translation mechanism comprises a translation carrier plate 41, a screw rod 42, a connecting block 47 in threaded connection with the screw rod 42, and a second driving motor 43 for driving the screw rod 42 to rotate, the translation carrier plate 41 is fixedly connected with the turntable 31, the connecting block 47 is fixedly connected with the mounting frame 22, two guide rods 44 respectively located at two sides of the screw rod 42 are fixedly arranged on the translation carrier plate 41, a sliding sleeve 45 is connected on the guide rods 44 in a sliding manner, and the sliding sleeve 45 is fixedly connected with the translation carrier plate 41. Because the mounting bracket 22 needs the internal rotation in casing 12, the interval has between the entrance of business turn over board mouth 13 on casing 12 and conveying roller 21, in order to make panel seamless joint, need move mounting bracket 22 translation earlier and meet to the transfer chain that gets into the direction play with panel, before panel gets into conveying mechanism, need make the transfer chain remove to business turn over board mouth 13 department that corresponds through translation mechanism earlier, treat panel entering conveying mechanism after, translation mechanism resets, when going out the board, translation mechanism continues to drive conveying mechanism and removes to the business turn over board mouth 13 department that is close to casing 12 inner wall department.

The connecting block 47 is fixedly connected with the mounting frame 22 through a supporting plate 46, the translation carrier plate 41 is fixedly connected with the turntable 31, the supporting plate 46 is fixedly connected with the outer edge of the mounting frame 22, and the connecting block 47 is fixedly connected with the supporting plate 46.

As shown in fig. 3 and 4, the conveying mechanism further includes an inlet pinch roller 51 and an outlet pinch roller 52, the inlet pinch roller 51 is rotatably connected above the conveying roller 21 at the inlet end of the mounting frame, the outlet pinch roller 52 is rotatably connected above the conveying roller 21 at the outlet end of the mounting frame 22, a gap is formed between the inlet pinch roller 51 and the conveying roller 21 corresponding to the inlet pinch roller 51, the outlet pinch roller 52 is tightly pressed on the conveying roller 21 corresponding to the outlet pinch roller 52, a first clutch assembly is arranged on the outlet pinch roller 52, and a second clutch assembly is arranged on the conveying roller 21 corresponding to the outlet pinch roller 52;

the clutch assembly I comprises a sleeve I61 sleeved on the outlet pressure wheel 52, the sleeve I61 is rotatably connected with the outlet pressure wheel 52, a plurality of sliding holes I62 are uniformly formed in the outlet pressure wheel 52 along the circumferential direction of an axis, the outer ends of the sliding holes I62 penetrate through the wall surface of the outlet pressure wheel 52, the outer ends of the sliding holes I62 incline towards the rotating direction of the outlet pressure wheel 52, a locking block I63 is connected in the sliding holes I62 in a sliding mode, the outer end of the locking block I63 can abut against the inner wall of the sleeve I61, and a tension spring I64 is connected between the inner end of the locking block I63 and the inner wall of the sliding holes;

the clutch assembly II comprises a sleeve II 71 sleeved on the outlet pressure wheel 52, the sleeve I61 is rotatably connected with the conveying roller 21, a plurality of sliding holes II 72 are uniformly formed in the conveying roller 21 along the circumferential direction of the axis, the outer ends of the sliding holes II 72 penetrate through the wall surface of the conveying roller 21, the outer ends of the sliding holes II 72 incline towards the rotating direction of the conveying roller 21, a locking block II 73 is connected in the sliding holes II 72 in a sliding mode, the outer end of the locking block II 73 can abut against the inner wall of the sleeve II 71, and a tension spring II 74 is connected between the inner end of the locking block II 73 and the inner wall of the sliding hole;

When the plate enters the conveying mechanism, the running speed of the plate is high, and inertia force exists, so that the plate needs to be immediately stopped after the driving motor III 23 stops running, the inertia force is eliminated, the plate is prevented from rushing out of the conveying mechanism, and the plate is prevented from being damaged.

An outlet pressure wheel 52 arranged at the tail end of the conveying mechanism and a conveying roller 21 corresponding to the outlet pressure wheel are respectively provided with a clutch assembly I and a clutch assembly II which realize clutch by using centrifugal force, and further: when a plate enters the conveying mechanism at a higher speed, after the driving motor III 23 stops running instantly, the plate is acted by inertia force to move continuously, however, due to the reduction of centrifugal force, the first locking block 63 and the second locking block 73 enable the first sleeve 61 and the second sleeve 71 to be acted by the inertia force of the outlet pinch roller 52 and the conveying roller 21 to be reduced, the first sleeve 61 and the second sleeve 71 are rubber pieces and are extruded with each other, the first sleeve 61 and the second sleeve 71 can be rapidly separated from the outlet pinch roller 52 and the conveying roller 21 to stop running under the action of the inertia force, the plate is limited to pass through the space between the outlet pinch roller 52 and the conveying roller 21, after the driving motor III 23 is started, the first sleeve 61 and the second sleeve 71 are pressed by the first locking block 63 and the second locking block 73 to keep synchronous running, the plate is fed and extruded, and can be stably conveyed out of the conveying mechanism.

The traditional method is as follows: the tail end of the conveying mechanism is provided with a limiting block which moves upwards at the moment when the driving motor III 23 stops running to block the plate, the plate material moving mechanism moves downwards when the driving mechanism operates again to vacate a space for the plate material to move continuously, in order to avoid a strong impact between the plate material and a limiting block, a brake mechanism is required to be arranged on the conveying roller 21, so that the inertia force of the conveying roller 21 is eliminated immediately when the driving motor III 23 stops operating, but the inertia force of the plate material still cannot be eliminated, the impact on the plate still exists, after the driving motor III 23 stops running through the improvement of the structure, the sleeve I61 and the sleeve II 71 can rotate, but can not be driven by the outlet pinch roller 52 and the conveying roller 21, can have good buffer effect on the plate after receiving the impact force of the plate, and can prevent that panel from receiving the impact and the front end perk, avoid the damage of panel and the dislocation of panel.

As shown in fig. 5 and 6, two mounting clamps respectively located at two ends of the outlet pinch roller 52 are fixedly arranged on the mounting frame 22, each mounting clamp includes two clamping pieces 81 parallel to each other, two ends of the outlet pinch roller 52 are respectively provided with a roller 82, a slot allowing the roller 82 to be inserted is formed between the two clamping pieces 81, a pressing component is respectively arranged on the two clamping pieces 81, the pressing component includes a mounting hole formed on the clamping piece 81 and perpendicular to the axis of the outlet pinch roller 52, an adjusting bolt 83 is connected to the outer end of the mounting hole through a thread, a pressing block 84 is connected to the other end of the mounting hole in a sliding manner, a pressing spring 85 in a compression state is connected between the pressing block 84 and the adjusting bolt 83, a pressing portion 86 adapted to the outer wall surface of the roller 82 is arranged on the lower side of the pressing block 84, and a guiding portion 87 symmetrically distributed with the pressing portion.

The pressing portion 86 can reduce the rotation resistance of the roller 82 and can press down and position the slip, the guide portion 87 and the pressing portion 86 have a positive effect on the convenience of mounting and dismounting the roller 82, and the adjusting bolt 83 can adjust the pre-tightening force of the pressing spring 85 and adjust the pressing force of the roller 82.

As shown in fig. 1, 6 and 7, a correcting mechanism capable of correcting the position of the plate on the conveying mechanism is disposed on the translation carrier plate, the correcting mechanism includes a driving motor four 91 fixed on the translation carrier plate and two rotating wheels respectively located at two ends of the translation carrier plate, the driving motor four 91 drives one of the rotating wheels, the two rotating wheels are connected through a belt 92, two base plates 93 are fixedly disposed on the belt 92, the two base plates 93 are respectively connected at the bisectors of the belt 92, a plurality of pressure levers 94 are fixedly disposed on the base plates 93, the pressure levers 94 can move in a gap between adjacent conveying rollers 21, and the base plates 93 are slidably connected on the translation carrier plate.

After the plate enters the conveying mechanism, the plate may be dislocated due to collision, in order to make the plate leave the conveying mechanism smoothly, the plate needs to be placed in the middle in the conveying direction, the driving motor four 91 drives the belt 92 to rotate, so that the two substrates 93 are close to each other or far away from each other, thereby enabling the pressing rod 94 to perform centering processing on the plate on the conveying mechanism in the process that the two substrates 93 are close to each other, and vacating the space where the plate enters the conveying mechanism when the two substrates 93 are far away from each other.

A speed reducing mechanism is arranged between the first driving motor 32 and the rotary table 31, a hinged door is arranged at an opening at the upper end of the shell 12, and the hinged door is made of transparent materials, so that the plates can be observed conveniently and faults can be cleaned conveniently.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. The rotary corner machine is characterized by comprising a rack (11) and a rectangular casing (12) fixed on the rack (11), wherein a plate inlet and outlet opening (13) is formed in each of four side walls of the casing (12), a conveying mechanism corresponding to the plate inlet and outlet opening (13) is arranged in the casing (12), the conveying mechanism comprises a plurality of conveying rollers (21) which are parallel to each other and a rectangular mounting frame (22), each conveying roller (21) is rotatably connected to the mounting frame (22), a rotary disc (31) is arranged on the casing (12), the rotary disc (31) is driven by a driving motor I (32), the rotary disc (31) is fixedly connected with the mounting frame (22), and the distance between the adjacent side walls on the casing (12) is greater than the length of the diagonal line of the mounting frame (22); two ends of each conveying roller (21) are respectively and fixedly provided with a gear, a toothed belt is connected between the gears positioned on the same side, and one conveying roller (21) is driven by a driving motor III (23).

2. The rotary type corner turning machine according to claim 1, wherein a translation mechanism is disposed between the mounting frame (22) and the rotating disc (31), the translation mechanism comprises a translation support plate (41), a screw rod (42), a connecting block (47) screwed on the screw rod (42), and a second driving motor (43) for driving the screw rod (42) to rotate, the translation support plate (41) is fixedly connected with the rotating disc (31), the connecting block (47) is fixedly connected with the mounting frame (22), two guide rods (44) are fixedly disposed on the translation support plate (41) and respectively located at two sides of the screw rod (42), a sliding sleeve (45) is slidably connected on the guide rods (44), and the sliding sleeve (45) is fixedly connected with the translation support plate (41).

3. Rotary type corner turning machine according to claim 2, characterized in that the connecting block (47) is fixedly connected to the mounting frame (22) through a support plate (46), the translational support plate (41) is fixedly connected to the turntable (31), the support plate (46) is fixedly connected to the outer edge of the mounting frame (22), and the connecting block (47) is fixedly connected to the support plate (46).

4. A rotary type corner turning machine according to claim 1, 2 or 3, wherein the conveying mechanism further comprises an inlet pinch roller (51) and an outlet pinch roller (52), the inlet pinch roller (51) is rotatably connected above the conveying roller (21) at the inlet end of the mounting frame, the outlet pinch roller (52) is rotatably connected above the conveying roller (21) at the outlet end of the mounting frame (22), a gap is provided between the inlet pinch roller (51) and the corresponding conveying roller (21), the outlet pinch roller (52) is tightly pressed on the corresponding conveying roller (21), a first clutch assembly is provided on the outlet pinch roller (52), and a second clutch assembly is provided on the conveying roller (21) corresponding to the outlet pinch roller (52);

the first clutch assembly comprises a first sleeve (61) sleeved on the outlet pressure wheel (52), the first sleeve (61) is rotatably connected with the outlet pressure wheel (52), a plurality of first sliding holes (62) are uniformly formed in the outlet pressure wheel (52) along the circumferential direction of an axis, the outer ends of the first sliding holes (62) penetrate through the wall surface of the outlet pressure wheel (52), the outer ends of the first sliding holes (62) incline towards the rotating direction of the outlet pressure wheel (52), a first locking block (63) is connected in the first sliding holes (62) in a sliding mode, the outer ends of the first locking blocks (63) can abut against the inner wall of the first sleeve (61), and a first tension spring (64) is connected between the inner ends of the first locking blocks (63) and the inner wall of the first sliding holes (62);

the clutch assembly II comprises a sleeve II (71) sleeved on the outlet pinch roller (52), the sleeve I (61) is rotatably connected with the conveying roller (21), a plurality of sliding holes II (72) are uniformly formed in the conveying roller (21) along the circumferential direction of an axis, the outer ends of the sliding holes II (72) penetrate through the wall surface of the conveying roller (21), the outer ends of the sliding holes II (72) incline towards the rotating direction of the conveying roller (21), a locking block II (73) is connected in the sliding holes II (72) in a sliding mode, the outer end of the locking block II (73) can abut against the inner wall of the sleeve II (71), and a tension spring II (74) is connected between the inner end of the locking block II (73) and the inner wall of the sliding hole II (72);

5. The rotary corner turning machine according to claim 4, wherein two mounting clamps are fixedly arranged on the mounting bracket (22) and respectively arranged at two ends of the outlet pressure roller (52), each mounting clamp comprises two clamping pieces (81) which are parallel to each other, a roller (82) is respectively arranged at two ends of the outlet pressure roller (52), a slot for allowing the roller (82) to be inserted is formed between the two clamping pieces (81), a pressing assembly is respectively arranged on the two clamping pieces (81), the pressing assembly comprises a mounting hole which is formed on the clamping pieces (81) and is perpendicular to the axis of the outlet pressure roller (52), an adjusting bolt (83) is connected to the outer end of the mounting hole in a threaded manner, a pressing block (84) is slidably connected to the other end of the mounting hole, and a pressing spring (85) in a compressed state is connected between the pressing block (84) and the adjusting bolt (83), the lower side of the pressing block (84) is provided with a pressing part (86) matched with the outer wall surface of the roller (82), and the upper side of the pressing block (84) is provided with a leading-in part (87) symmetrically distributed with the pressing part (86).

6. The rotary type corner turning machine according to claim 3, wherein the translation carrier plate is provided with a guiding mechanism capable of correcting the position of the plate on the conveying mechanism, the guiding mechanism comprises a driving motor four (91) fixed on the translation carrier plate and two rotating wheels respectively located at two ends of the translation carrier plate, the driving motor four (91) drives one of the rotating wheels, the two rotating wheels are connected through a belt (92), two base plates (93) are fixedly arranged on the belt (92), the two base plates (93) are respectively connected at the two halves of the belt (92), a plurality of pressing rods (94) are fixedly arranged on the base plates (93), the pressing rods (94) can move in the gaps between adjacent conveying rollers (21), and the base plates (93) are slidably connected on the translation carrier plate.