A reciprocating traction feeding mechanism for an intermittent printing press

Abstract

The present invention relates to the technical field of printing machine structure, specifically a reciprocating traction feeding mechanism of an intermittent printing machine, including a base, a controller installed on the base, and also including: a traction structure installed on the base, the traction structure including a supporting and rotating part installed on the base, an elastic pressing part installed on the base; a forward driving structure connected to the supporting and rotating part, the forward driving structure including a rotating driving part installed on the base, the rotating driving part is coaxially fixedly connected with a groove wheel, the groove wheel is provided with multiple groups of grooves, and the grooves are connected with a rotating connecting part; a braking reversal structure connected to the supporting and rotating part. The present invention uses the forward driving structure and the braking reversal structure to perform feeding and conveying operations and return and conveying operations on the substrate respectively, thereby avoiding the heat accumulation in the invention in a short time due to the emergency stop and reversal of the present invention, protecting the present invention, and avoiding the present invention from heating up and burning due to frequent changes in the rotation direction.

Description

Technical Field

[0001] The invention relates to the technical field of printing machine structures, in particular to a reciprocating traction material feeding mechanism of an intermittent printing machine. Background Art

[0002] The intermittent printing machine is mainly composed of an unwinding unit, a front traction unit, a printing color group, a rear traction unit, and a rewinding unit. The traditional intermittent printing machine uses steel rollers to traction to make the paper feeding method intermittent, so that the substrate material can be intermittently retreated. The main function is to reduce the interval between printed pictures.

[0003] When the existing intermittent printing machine is working, the motor drives the steel roller to rotate forward and reverse, so as to realize the feeding and returning of the printed material. Due to the heavy weight of the steel roller, the alternating forward and reverse operation requires the motor to apply a torque sufficient to stop and reverse the steel roller in a short time when the motor changes from the forward state to the reverse state, which will cause the motor power to rise in a short time, the heat in the motor will accumulate in a short time, and the motor is easy to burn out. Summary of the invention

[0004] The object of the present invention is to provide a reciprocating traction feeding mechanism for an intermittent printing press to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A reciprocating traction feeding mechanism of an intermittent printing press comprises a base, a controller is installed on the base, and further comprises:

[0007] A traction structure installed on the base, the traction structure comprising a supporting and rotating part installed on the base, and an elastic pressing part installed on the base;

[0008] A forward driving structure connected to the supporting part, the forward driving structure comprising a rotating driving part mounted on the base, the rotating driving part being coaxially fixedly connected to a groove wheel, the groove wheel being provided with a plurality of grooves, the grooves being movably connected to a rotating connecting part, the rotating connecting part being coaxially connected to the supporting part;

[0009] A braking reversal structure connected to the supporting part, the braking reversal structure includes a rotating braking part installed on a base, the rotating braking part is connected to multiple groups of first conductive sheets, a first extension strip adapted to the first conductive sheets is fixedly installed on the rotating braking part, the supporting part is coaxially connected to a rotating conductive part slidingly connected to the rotating braking part, a reversal toggle part is installed on the base, the reversal toggle part is connected to a power-assisted braking part, the reversal toggle part is used to provide torque for the rotation of the rotating conductive part, and the reversal toggle part provides torque to the rotating braking part by squeezing the first extension strip.

[0010] As a further improvement of the present invention: the supporting part includes two groups of first limit frames fixedly installed on the base, and rollers are rotatably installed on the first limit frames. One end of the roller is coaxially connected to the rotating connecting part through a first flange connecting part, and the other end of the roller is coaxially connected to the rotating conductive part through a second flange connecting part.

[0011] As a further improvement of the present invention: the elastic pressing part includes two sets of guide sleeves fixedly mounted on the base, the guide sleeves are slidably connected to a roller frame, a return spring is installed between the roller frame and the guide sleeves, and the roller frame is rotatably connected to a pressure roller.

[0012] As a further improvement of the present invention: the rotation drive part includes a first motor fixedly connected to the base, the output shaft of the first motor is fixedly connected to the first gear, the first gear is meshingly connected to the second gear, the second gear is fixedly connected to a connecting shaft rotatably connected to the base, the connecting shaft is rotatably connected to the base, and the connecting shaft is coaxially fixedly connected to the groove wheel.

[0013] As a further improvement scheme of the present invention: the rotating connection part includes a wheel body coaxially fixedly connected to the first flange connection part, two groups of annular grooves are opened on the wheel body, a conductive ring is fixedly installed in the annular groove, the conductive ring is rotatably connected to a double cam frame installed on the base, the conductive ring is slidably connected to a second conductive sheet, the second conductive sheet is electrically connected to an external power supply through a controller, the second conductive sheet is fixedly connected to a side frame fixedly connected to the base, multiple groups of first electromagnets are fixedly installed in the wheel body, the first electromagnet is electrically connected to the controller, the first electromagnet is fixedly connected to a first spring, the first spring one end away from the first electromagnet is fixedly connected to a strip slidably connected to the wheel body, and the strip is movably connected to the groove.

[0014] As a further improvement of the present invention: the rotating braking part includes a seat body fixedly connected to the base, the seat body is rotatably connected to a first ring body, a friction plate is fixedly installed in the seat body, the friction plate is in contact with the first ring body, the first ring body is connected to an inner ring by bolts, the inner ring is fixedly connected to the first extension strip, and the inner ring is fixedly connected to the first conductive sheet.

[0015] As a further improvement scheme of the present invention: the rotating conductive part includes a card frame coaxially fixedly connected to the second flange connecting part, the card frame movably connected to multiple groups of plug-in frames, the multiple groups of plug-in frames are slidably connected to an external frame, the plug-in frames are slidably connected to a jack frame, a second spring is installed between the plug-in frame and the jack frame, the jack frame is movably connected to the external frame, a plurality of groups of positioning holes are opened on the external frame along the circumferential direction, the positioning holes are connected to a deflection seat slidably installed on the external frame through threaded pins, the deflection seat is fixedly connected to a third conductive sheet adapted to the first conductive sheet, and the deflection seat is fixedly connected to a second extension strip matched with the reverse toggle part.

[0016] As a further improvement of the present invention: the reverse toggle part includes a second motor fixedly connected to the base, the output shaft of the second motor is fixedly connected to a prism, the prism is slidably connected to a driving sleeve, a plurality of first electric telescopic rods are fixedly installed on the base, the movable end of the first electric telescopic rod is fixedly connected to a second limit frame, the second limit frame is rotatably connected to the driving sleeve, the driving sleeve is fixedly connected to a swing frame, the swing frame is fixedly connected to a pressure sensor, and the driving sleeve is connected to the power-assisted braking part.

[0017] As a further improvement of the present invention: the power-assisted braking part includes a guide frame fixedly mounted on the base, a transverse frame slidably mounted on the guide frame, the transverse frame is rotatably connected to the driving sleeve, a plurality of groups of second electric telescopic rods are fixedly mounted on the transverse frame, a pressing plate is fixedly connected to the movable end of the second electric telescopic rod, and a brake pad intermittently matched with the driving sleeve is fixedly connected to the pressing plate.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The substrate to be transported is placed between the supporting part and the elastic pressing part. Under the pressure of the elastic pressing part, the substrate is pressed on the supporting part, and the rotating driving part drives the groove wheel to rotate. The rotating groove wheel drives the rotating connecting part through the groove, and the rotating connecting part drives the supporting part, so that the supporting part transports the substrate, thereby performing the substrate unloading operation. The supporting part drives the rotating conductive part to rotate, the reversing toggle part is attached to the first extension strip, and the power-assisted braking part prevents the reversing toggle part from rotating. As the rotating conductive part contacts the first conductive sheet and is electrically connected to the first conductive sheet, the controller controls the rotating connecting part and the groove to disengage from each other, thereby disconnecting the groove wheel and the rotating connecting part. The power connection of the connecting part, as the reverse toggle part blocks the rotating conductive part, the rotating conductive part stops, and then the power brake part releases the limit on the reverse toggle part, the reverse toggle part toggles the first extension bar and the rotating conductive part, so that the rotating conductive part drives the supporting part to reverse, so that the supporting part drives the substrate to move back, and then the groove and the rotating connection part are re-powered, and the reverse toggle part rotates to the next group of first extension bars, which are adjacent to the previous group of first extension bars, and the next group of first extension bars are set in the direction of unloading rotation along the substrate supporting part, and then the present invention performs the next unloading operation. The present invention uses a forward driving structure and a brake reverse structure to perform feeding and conveying operations and return conveying operations on the substrate respectively, thereby avoiding the heat accumulation in the invention in a short time due to the sudden stop and reversal of the present invention, protecting the present invention, and avoiding the present invention from heating up and burning due to frequent changes in the rotation direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0021] Figure 2 A schematic diagram of a three-dimensional structure from another viewing angle of the present invention;

[0022] Figure 3 It is a schematic diagram of the structure of the reverse toggle part and the power-assisted braking part of the present invention;

[0023] Figure 4 It is a three-dimensional structural schematic diagram of the cooperation between the reverse toggle part and the power-assisted braking part of the present invention;

[0024] Figure 5 For the present invention Figure 1 A local enlarged schematic diagram of the middle A;

[0025] Figure 6 For the present invention Figure 2 A partial enlarged schematic diagram of point B in the middle;

[0026] Figure 7 For the present invention Figure 3 A partial enlarged schematic diagram of point C in the middle;

[0027] Figure 8 It is a schematic diagram of the three-dimensional structure of the rotating conductive part of the present invention;

[0028] Fig. 9 It is a schematic diagram of the structure of the rotating braking part and the first extension strip of the present invention;

[0029] Fig.10 It is a schematic diagram of the structure of the driving sleeve and the swing frame of the present invention;

[0030] Fig.11 It is a structural schematic diagram of the threaded pin of the present invention;

[0031] Fig.12 It is a schematic diagram of the structure of the wheel body, the first electromagnet and the inserting strip of the present invention;

[0032] Fig.13 It is a structural schematic diagram of the elastic pressing part of the present invention;

[0033] Fig.14 It is a schematic structural diagram of the matching of the plug-in rack and the jack rack of the present invention.

[0034] In the figure: 1, base; 2, controller; 3, traction structure; 301, support and rotation part; 3011, first limit frame; 3012, roller; 3013, first flange connection part; 3014, second flange connection part; 302, elastic pressing part; 3021, guide sleeve; 3022, roller frame; 3023, pressure roller; 4, forward driving structure; 401, rotation driving part; 4011, first motor; 4012 , first gear; 4013, second gear; 4014, connecting shaft; 402, groove wheel; 403, groove; 404, rotating connecting part; 4041, double cam; 4042, wheel body; 4043, annular groove; 4044, conductive ring; 4045, second conductive sheet; 4046, side frame; 4047, first electromagnet; 4048, insert; 5, brake reversal structure; 501, rotating brake part; 50 11. seat body; 5012. first ring body; 5013. friction plate; 5014. inner ring; 502. first conductive plate; 503. first extension strip; 504. rotating conductive part; 5041. card frame; 5042. plug-in frame; 5043. external frame; 5044. jack frame; 5045. positioning hole; 5046. threaded pin; 5047. deflection seat; 5048. third conductive plate; 5049. second Extension bar; 505, reverse toggle part; 5051, second motor; 5052, prism; 5053, drive sleeve; 5054, first electric telescopic rod; 5055, second limit frame; 5056, swing frame; 5057, pressure sensor; 506, power brake part; 5061, guide frame; 5062, transverse frame; 5063, second electric telescopic rod; 5064, pressure plate; 5065, brake pad. DETAILED DESCRIPTION

[0035] The technical solution of the present invention is further described in detail below in conjunction with specific implementation methods.

[0036] Example 1, see Figure 1 to Figure 14 As shown, a reciprocating traction feeding mechanism of an intermittent printing press includes a base 1, a controller 2 is installed on the base 1, and also includes:

[0037] A traction structure 3 installed on the base 1, the traction structure 3 includes a supporting portion 301 installed on the base 1, and an elastic pressing portion 302 is installed on the base 1;

[0038] A forward driving structure 4 connected to the supporting part 301, the forward driving structure 4 comprising a rotating driving part 401 mounted on the base 1, the rotating driving part 401 being coaxially fixedly connected to a groove wheel 402, the groove wheel 402 being provided with a plurality of groups of grooves 403, the grooves 403 being movably connected to a rotating connecting part 404, the rotating connecting part 404 being coaxially connected to the supporting part 301;

[0039] The braking reversal structure 5 connected to the supporting part 301 comprises a rotating braking part 501 mounted on the base 1, the rotating braking part 501 is connected with a plurality of first conductive sheets 502, the first conductive sheets 502 are arranged at equal intervals along the circumferential direction on the rotating braking part 501, the first conductive sheets 502 are electrically connected with the controller 2, the rotating braking part 501 is fixedly mounted with first extension strips 503 adapted to the first conductive sheets 502, the number of the first extension strips 503 is the same as the number of the first conductive sheets 502, the supporting part 301 is coaxially connected with a rotating conductive part 504 slidably connected with the rotating braking part 501, a reversal toggle part 505 is mounted on the base 1, the reversal toggle part 505 is connected with a power brake part 506, the reversal toggle part 505 is used to provide torque for the rotation of the rotating conductive part 504, and the reversal toggle part 505 provides torque to the rotating braking part 501 by squeezing the first extension strips 503.

[0040] The substrate to be transported is placed between the supporting part 301 and the elastic pressing part 302. Under the pressure of the elastic pressing part 302, the substrate is pressed on the supporting part 301. The rotating driving part 401 drives the groove wheel 402 to rotate. The rotating groove wheel 402 drives the rotating connecting part 404 through the groove 403. The rotating connecting part 404 drives the supporting part 301, so that the supporting part 301 transports the substrate, thereby performing the substrate unloading operation. The supporting part 301 drives the rotating conductive part 504 to rotate, the reverse toggle part 505 is attached to the first extension strip 503, and the auxiliary braking part 506 prevents the reverse toggle part 505 from rotating. As the rotating conductive part 504 contacts the first conductive sheet 502 and is electrically connected to the first conductive sheet 502, the controller 2 controls the rotating connecting part 404 and the groove 403 to separate from each other, thereby disconnecting the groove wheel 401. 02 is connected with the rotating connecting part 404 by power. As the reversing toggle part 505 blocks the rotating conductive part 504, the rotating conductive part 504 stops, and then the power brake part 506 releases the limit on the reversing toggle part 505. The reversing toggle part 505 toggles the first extension bar 503 and the rotating conductive part 504, so that the rotating conductive part 504 drives the supporting part 301 to reverse, so that the supporting part 301 drives the printing material to move back. Then the groove 403 is re-powered with the rotating connecting part 404, and the reversing toggle part 505 rotates to the next group of first extension bars 503, which are adjacent to the previous group of first extension bars 503, and the next group of first extension bars 503 are arranged in the direction of material discharge rotation along the printing material supporting part 301, and then the present invention performs the next material discharge operation. The present invention uses a forward driving structure 4 and a braking reversing structure 5 to respectively perform feeding and conveying operations on the substrate, thereby preventing the heat from accumulating inside the invention in a short time due to emergency stop and reversal, protecting the present invention, and preventing the present invention from heating up and burning due to frequent changes in rotation direction.

[0041] In one case of the present embodiment, the supporting part 301 includes two groups of first limit frames 3011 fixedly mounted on the base 1, and the two groups of the first limit frames 3011 are rotatably connected to the roller 3012 together, one end of the roller 3012 is coaxially connected to the rotating connection part 404 through the first flange connection part 3013, and the other end of the roller 3012 is coaxially connected to the rotating conductive part 504 through the second flange connection part 3014, the first flange connection part 3013 and the second flange connection part 3014 have the same structure, and the first flange connection part 3013 includes two groups of flange plates respectively mounted on the roller 3012 and the rotating connection part 404, and the two groups of flange plates are connected by screws and nuts. The first limiting frame 3011 provides rotation support for the roller 3012 , and the roller 3012 is used to support the substrate. The rotating connection part 404 drives the roller 3012 through the first flange connection part 3013 , and the rotating conductive part 504 applies torque to the roller 3012 through the second flange connection part 3014 .

[0042] In one case of this embodiment, the elastic pressing part 302 includes two sets of guide sleeves 3021 fixedly mounted on the base 1, the guide sleeves 3021 are slidably connected to a roller frame 3022, a return spring is installed between the roller frame 3022 and the guide sleeves 3021, and the roller frame 3022 is rotatably connected to a pressure roller 3023. The pressure roller 3023 is used to apply pressure to the substrate.

[0043] In one case of this embodiment, the rotation driving part 401 includes a first motor 4011 fixedly connected to the base 1, the output shaft of the first motor 4011 is fixedly connected to the first gear 4012, the first gear 4012 is meshedly connected to the second gear 4013, the second gear 4013 is fixedly connected to the connecting shaft 4014 rotatably connected to the base 1, the connecting shaft 4014 is rotatably connected to the base 1, and the connecting shaft 4014 is coaxially fixedly connected to the groove wheel 402. The first motor 4011 drives the first gear 4012 to rotate, the rotating first gear 4012 drives the second gear 4013 to rotate, and the second gear 4013 drives the groove wheel 402 to rotate through the connecting shaft 4014, so that the groove wheel 402 drives the rotating connecting part 404 to rotate through the groove 403, so that the rotation driving part 401 outputs torque to the groove wheel 402.

[0044] In one case of this embodiment, the rotating connection part 404 includes a wheel body 4042 coaxially fixedly connected to the first flange connection part 3013, and two groups of annular grooves 4043 are opened on the wheel body 4042. A conductive ring 4044 is fixedly installed in the annular groove 4043. The conductive ring 4044 is rotatably connected to a double cam 4041 installed on the base 1. The conductive ring 4044 is slidably connected to a second conductive sheet 4045. The second conductive sheet 4045 is electrically connected to an external power supply through the controller 2. The second conductive sheet 4045 is electrically connected to the external power supply through the controller 2. 45 is fixedly connected to a side frame 4046 fixedly connected to the base 1, a plurality of groups of first electromagnets 4047 are fixedly installed in the wheel body 4042, the first electromagnets 4047 are communicatively connected to the controller 2, the first electromagnets 4047 are electrically connected to the controller 2, the first electromagnets 4047 are fixedly connected to a first spring, the first spring is fixedly connected to an end away from the first electromagnet 4047 with an insertion strip 4048 slidably connected to the wheel body 4042, the insertion strip 4048 is ferromagnetic, and the insertion strip 4048 is movably connected to the groove 403. Under the push of the first spring, the multiple groups of insertion strips 4048 are respectively inserted into the multiple groups of grooves 403, and then when the groove wheel 402 rotates, the insertion strips 4048 drive the wheel body 4042 to rotate on the double cam 4041, and the wheel body 4042 drives the first flange connection part 3013 to rotate. During this period, the conductive ring 4044 continues to contact with the second conductive sheet 4045. Under the control of the controller 2, the first electromagnet 4047 magnetically attracts the insertion strips 4048 to make the insertion strips 4048 disengage from the grooves 403, thereby releasing the connection between the rotating connection part 404 and the groove wheel 402.

[0045] In one case of the present embodiment, the rotating braking part 501 includes a seat body 5011 fixedly connected to the base 1, the seat body 5011 is rotatably connected to the first ring body 5012, a friction plate 5013 is fixedly installed inside the seat body 5011, the friction plate 5013 is in contact with the first ring body 5012, the first ring body 5012 is connected to the inner ring 5014 by bolts, the inner ring 5014 is slidably connected to the rotating conductive part 504, the inner ring 5014 is fixedly connected to the first extension strip 503, the inner ring 5014 is fixedly connected to the first conductive sheet 502, and the center of the inner ring 5014, the first conductive sheet 502, and the first extension strip 503 are arranged on the same straight line. The friction plate 5013 prevents the first ring body 5012 from rotating freely and rotating due to the friction of the rotating conductive part 504 by rubbing the first ring body 5012, and the inner ring 5014 is removed by removing the bolts installed on the first ring body 5012, so that the inner ring 5014, the first extension strip 503 and the first conductive plate 502 can be replaced as a whole. When the reverse toggle part 505 and the first extension strip 503 are pressed against each other, the reverse toggle part 505 and the rotating conductive part 504 are pressed against each other.

[0046] In one case of the present embodiment, the rotating conductive part 504 includes a card frame 5041 coaxially fixedly connected to the second flange connection part 3014, the card frame 5041 is movably connected to a plurality of groups of plug-in frames 5042, the plurality of groups of the plug-in frames 5042 are slidably connected to an external frame 5043, the plug-in frames 5042 are slidably connected to a socket frame 5044, a second spring is installed between the plug-in frames 5042 and the socket frame 5044, the socket frame 5044 is movably connected to the external frame 5043, a plurality of groups of limiting holes for docking with the socket frame 5044 are opened on the external frame 5043, and a plurality of groups of positioning holes 5043 are opened along the circumferential direction. 045, wherein a group of positioning holes 5045 are connected to a deflection seat 5047 slidably mounted on an external frame 5043 through a threaded pin 5046, and the threaded pin 5046 is provided with a thread threadedly connected to the deflection seat 5047. By removing the threaded pin 5046 from the deflection seat 5047, the deflection seat 5047 can be easily slid on the external frame 5043. The deflection seat 5047 is fixedly connected to a third conductive sheet 5048 adapted to the first conductive sheet 502, and the third conductive sheet 5048 is electrically connected to the controller 2. The deflection seat 5047 is fixedly connected to a second extension strip 5049 matched with the reversing toggle portion 505. When the reversing toggle portion 505 is squeezed against the first extension strip 503, the reversing toggle portion 505 and the second extension strip 5049 are squeezed against each other, thereby facilitating the inner ring 5014 to rotate together with the rotating conductive portion 504, pulling the jack frame 5044 away from the external frame 5043, and then pulling the jack frame 5044 in a direction away from the card frame 5041, so that the jack frame 5044 drives the plug-in frame 5042 to separate from the card frame 5041.

[0047] In one case of this embodiment, the reverse toggle unit 505 includes a second motor 5051 fixedly connected to the base 1, the output shaft of the second motor 5051 is fixedly connected to a prism 5052, the prism 5052 is slidably connected to a driving sleeve 5053, a plurality of first electric telescopic rods 5054 are fixedly installed on the base 1, the moving end of the first electric telescopic rod 5054 is fixedly connected to a second limiting frame 5055, the second limiting frame 5055 is rotatably connected to the driving sleeve 5053, and the driving sleeve 5053 is fixedly connected to the driving sleeve 5053. It is fixedly connected to a swing frame 5056, and the swing frame 5056 is fixedly connected to a pressure sensor 5057. The drive sleeve 5053 is connected to the power-assisted braking part 506. The first extension bar 503 and the second extension bar 5049 are both ferromagnetic. The swing frame 5056 is fixedly connected to a second magnet. The second electromagnet magnetically attracts the first extension bar 503 and the second extension bar 5049 to prevent the first extension bar 503 and the second extension bar 5049 from being directly separated from the pressure sensor 5057 due to inertia when the swing frame 5056 stops. The second motor 5051 drives the prism 5052 to rotate, so that the prism 5052 drives the driving sleeve 5053 to rotate, and the rotating driving sleeve 5053 drives the swing frame 5056 to rotate, so that the pressure sensor 5057 squeezes the first extension bar 503 and the second extension bar 5049, on the one hand, blocking the second extension bar 5049, and on the other hand, the first extension bar 503 and the second extension bar 5049 move synchronously with the pressure sensor 5057, so that the rotating conductive part 504 and the inner ring 5014 rotate at the same angular velocity, and the first electric telescopic rod 5054 pulls the second limiting frame 5055 during the contraction process, so that the driving sleeve 5053 moves away from the first extension bar 503 along with the second limiting frame 5055, so as to prevent the swing frame 5056 from hitting the first extension bar 503 and the second extension bar 5049 during rotation.

[0048] Embodiment 2, based on embodiment 1, refer to Figure 1 to Figure 4 The power-assisted braking part 506 includes a guide frame 5061 fixedly mounted on the base 1, a traverse frame 5062 is slidably mounted on the guide frame 5061, the traverse frame 5062 is rotatably connected to the driving sleeve 5053, and a plurality of sets of second electric telescopic rods 5063 are fixedly mounted on the traverse frame 5062, a pressing plate 5064 is fixedly connected to the moving end of the second electric telescopic rod 5063, and a brake pad 5065 intermittently matched with the driving sleeve 5053 is fixedly connected to the pressing plate 5064. The second electric telescopic rod 5063 drives the pressing plate 5064 to press against the driving sleeve 5053, so that the brake pad 5065 provides braking friction to the driving sleeve 5053, so that when the reverse toggle part 505 stops the second extension strip 5049, the load of the second motor 5051 is lower, thereby protecting the second motor 5051.

[0049] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A reciprocating traction feeding mechanism of an intermittent printing press, comprising a base, on which a controller is mounted, characterized in that: Also includes: A traction structure installed on the base, the traction structure comprising a supporting and rotating part installed on the base, and an elastic pressing part installed on the base; A forward driving structure connected to the supporting part, the forward driving structure comprising a rotating driving part mounted on the base, the rotating driving part being coaxially fixedly connected to a groove wheel, the groove wheel being provided with a plurality of grooves, the grooves being movably connected to a rotating connecting part, the rotating connecting part being coaxially connected to the supporting part; The braking reversal structure connected to the supporting part comprises a rotating brake part installed on the base, the rotating brake part is connected to multiple groups of first conductive sheets, a first extension strip adapted to the first conductive sheet is fixedly installed on the rotating brake part, the supporting part is coaxially connected to a rotating conductive part slidably connected to the rotating brake part, a reversal toggle part is installed on the base, the reversal toggle part is connected to a power-assisted braking part, the reversal toggle part is used to provide torque for the rotation of the rotating conductive part, the reversal toggle part provides torque to the rotating brake part by squeezing the first extension strip, as the rotating conductive part contacts the first conductive sheet and is electrically connected to the first conductive sheet, the controller controls the rotating connection part to disengage from the groove, thereby disconnecting the power connection between the groove wheel and the rotating connection part, as the reversal toggle part blocks the rotating conductive part, the rotating conductive part stops, and then the power-assisted braking part releases the limit on the reversal toggle part, the reversal toggle part toggles the first extension strip and the rotating conductive part, so that the rotating conductive part drives the supporting part to reverse.

2. The reciprocating traction feeding mechanism of an intermittent printing press according to claim 1, characterized in that: The supporting part includes two groups of first limiting frames fixedly mounted on the base, and rollers are rotatably mounted on the first limiting frames. One end of the roller is coaxially connected to the rotating connecting part through a first flange connecting part, and the other end of the roller is coaxially connected to the rotating conductive part through a second flange connecting part.

3. The reciprocating traction feeding mechanism of an intermittent printing press according to claim 1, characterized in that: The elastic pressing part comprises two groups of guide sleeves fixedly mounted on a base, the guide sleeves are slidably connected with a roller frame, a return spring is installed between the roller frame and the guide sleeves, and the roller frame is rotatably connected with a pressure roller.

4. The reciprocating traction feeding mechanism of an intermittent printing press according to claim 2, characterized in that: The rotation driving part includes a first motor fixedly connected to the base, the output shaft of the first motor is fixedly connected to the first gear, the first gear is meshingly connected to the second gear, the second gear is fixedly connected to a connecting shaft rotatably connected to the base, the connecting shaft is rotatably connected to the base, and the connecting shaft is coaxially fixedly connected to the groove wheel.

5. The reciprocating traction feeding mechanism of an intermittent printing press according to claim 4, characterized in that: The rotating connection part includes a wheel body coaxially fixedly connected to the first flange connection part, two groups of annular grooves are opened on the wheel body, a conductive ring is fixedly installed in the annular groove, the conductive ring is rotatably connected to a double cam frame installed on the base, the conductive ring is slidably connected to a second conductive sheet, the second conductive sheet is electrically connected to an external power supply through a controller, the second conductive sheet is fixedly connected to a side frame fixedly connected to the base, multiple groups of first electromagnets are fixedly installed in the wheel body, the first electromagnet is electrically connected to the controller, the first electromagnet is fixedly connected to a first spring, the first spring one end away from the first electromagnet is fixedly connected to a plug-in strip slidably connected to the wheel body, and the plug-in strip is movably connected to the groove.

6. The reciprocating traction feeding mechanism of an intermittent printing press according to claim 2, characterized in that: The rotating braking part includes a seat body fixedly connected to the base, the seat body is rotatably connected to a first ring body, a friction plate is fixedly installed in the seat body, the friction plate is in contact with the first ring body, the first ring body is connected to an inner ring by bolts, the inner ring is fixedly connected to the first extension strip, and the inner ring is fixedly connected to the first conductive sheet.

7. The reciprocating traction feeding mechanism of an intermittent printing press according to claim 6, characterized in that: The rotating conductive part includes a card frame coaxially fixedly connected to the second flange connecting part, the card frame movably connected to a plurality of groups of plug-in frames, the plurality of groups of plug-in frames are slidably connected to an external frame, the plug-in frames are slidably connected to a jack frame, a second spring is installed between the plug-in frame and the jack frame, the jack frame is movably connected to the external frame, a plurality of groups of positioning holes are opened on the external frame along the circumferential direction, the positioning holes are connected to a deflection seat slidably installed on the external frame through threaded pins, the deflection seat is fixedly connected to a third conductive sheet adapted to the first conductive sheet, and the deflection seat is fixedly connected to a second extension strip matched with the reversal toggle part.

8. The reciprocating traction feeding mechanism of an intermittent printing press according to claim 1, characterized in that: The reverse toggle portion includes a second motor fixedly connected to the base, the output shaft of the second motor is fixedly connected to a prism, the prism is slidably connected to a driving sleeve, a plurality of groups of first electric telescopic rods are fixedly installed on the base, the movable end of the first electric telescopic rod is fixedly connected to a second limit frame, the second limit frame is rotatably connected to the driving sleeve, the driving sleeve is fixedly connected to a swing frame, the swing frame is fixedly connected to a pressure sensor, and the driving sleeve is connected to the power-assisted braking portion.

9. The reciprocating traction feeding mechanism of an intermittent printing press according to claim 8, characterized in that: The power-assisted braking part includes a guide frame fixedly mounted on a base, a transverse frame slidably mounted on the guide frame, the transverse frame is rotatably connected to a driving sleeve, a plurality of groups of second electric telescopic rods are fixedly mounted on the transverse frame, a pressing plate is fixedly connected to the movable end of the second electric telescopic rod, and a brake pad intermittently matched with the driving sleeve is fixedly connected to the pressing plate.

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