A longitudinal perforating knife for a roll folding folder

Abstract

The utility model discloses a longitudinal punching knife of roll folding type folding machine, including punching knife clutch mechanism, punching knife installation roll, knife pad roller and punching knife axial adjusting mechanism. Punching knife clutch mechanism includes left and right connecting arms that swing around two support bars, eccentric shaft that is inserted in the guide groove of left and right connecting arms and first servo motor that is connected with the left end of eccentric shaft, the left end of first left bearing seat that is used for supporting the first left bearing installed on left connecting arm is inserted in the left end of punching knife installation roll, and the left end of this first bearing seat is connected left axle head through axle head coupling, second left bearing seat in proper order, the right end of punching knife installation roll passes through first right bearing and second right bearing installed on right connecting arm in proper order, and the right end mandrel of knife pad roller installs third right bearing seat, and punching knife axial adjusting mechanism includes support block and second servo motor that are connected with third right bearing seat and second right bearing respectively and are connected with support block through screw rod. The utility model can realize axial and radial electric adjustment.

Description

Technical Field

[0001] This utility model relates to a longitudinal punching knife for a roll folding machine. Background Technology

[0002] When a rotary folding machine performs a 16-page fold, there are three folds: the first fold is a vertical fold using a triangular plate, the second fold is a horizontal fold (i.e., an 8-page fold), and the third fold is a vertical fold (i.e., a 16-page fold). The vertical fold punch for the third fold is usually installed in a specific position on the folding machine. Currently, the most common vertical fold punch is installed on the second paper pull roller 1 of the folding machine, see... Figure 1 and Figure 2 The punching knife 10 is mounted on the punching knife mounting base 11, which is loosely fitted onto the spindle 1A of the second paper pulling roller 1 on the left side. Two rollers 12 extend symmetrically from the front end face of the punching knife mounting base 11. The outer diameter surface of the punching knife mounting base 11 is mounted on the punching knife swing arm 13 via bearings. The lower part of the punching knife swing arm 13 is hinged to a rotating shaft 130, and the upper end of the punching knife swing arm 13 is connected to the piston of the punching knife clutch cylinder 14. The piston rod is connected to the cylinder body of the punch clutch cylinder 14, which is hinged to a fixed seat 15. The fixed seat 15 is an open sleeve and is fitted onto a fixed shaft 150 by fastening screws. An adjusting screw 161 is installed on the lower part of the fixed seat 15. The rear end of the adjusting screw 161 is connected to an adjusting handle (not shown in the figure) located outside the operating side wall plate 100B through a universal joint 160. The adjusting screw 161 can adjust the punching depth of the punch 10.

[0003] In the aforementioned longitudinal punching cutter structure, the punching cutter arm 13 is not fixedly connected to the spindle 1A of the second paper-pulling roller. When the spindle 1A of the second paper-pulling roller rotates, the cross-shaped stop 17 fixed on the spindle 1A of the second paper-pulling roller rests against the two rollers 12, thereby driving the punching cutter mounting base 11 and the punching cutter 10 to rotate together. In this longitudinal punching cutter structure, the punching cutter 10 is not fixed in circumferential position. Each time it starts and stops, the rotation of the punching cutter 10 is uncontrollable, and there will be violent collisions between the stop 17 and the rollers 12, which greatly affects the service life of the parts. In this type of longitudinal folding punching knife structure, the contact position (punching depth) between the punching knife 10 and the second paper-pulling roller 1' on the right side requires manual adjustment of an adjusting handle located outside the operating side wall panel 100B to rotate the universal joint 160 and the adjusting screw 161. When the piston rod of the clutch cylinder 14 extends, the punching knife swing arm 13 rotates around the rotating shaft 130 until the lower end of the punching knife swing arm 13 touches the front end of the adjusting screw 161; when the piston rod of the clutch cylinder 14 retracts, the punching knife swing arm 13 rotates around the rotating shaft 130, causing the punching knife 11 to disengage from the other second paper-pulling roller 1' until the punching knife swing arm 13 touches the limit screw 162 mounted on the wall panel, limiting the transition of the punching knife swing arm 13. This adjustment mechanism is not only complex in structure and inconvenient to operate, but also lacks precision in adjusting the contact position. Utility Model Content

[0004] The purpose of this utility model is to overcome the defects of the prior art and provide a longitudinal punching knife for a roll folding machine. Its axial and radial directions can be electrically adjusted, and the adjustment operation is convenient, precise, time-saving and labor-saving.

[0005] The purpose of this utility model is achieved as follows: a longitudinal punching knife for a roll-folding folding machine is installed between a pair of transverse punching rollers and a pair of second paper pulling rollers of the folding machine, and includes a punching knife clutch mechanism, a punching knife mounting roller, a knife pad roller, and a punching knife axial adjustment mechanism; wherein, The punching tool clutch mechanism includes two horizontal support rods, a left connecting arm, a right connecting arm, an eccentric shaft, and a first servo motor; wherein... Two horizontal struts are vertically fixed to the inner sides of the drive side wall panel and the operating side wall panel, respectively. The left and right connecting arms are arranged parallel to the drive side wall plate or the operation side wall plate, and the middle parts of the left and right connecting arms are hinged to the inner ends of two horizontal support rods in a one-to-one correspondence; a rectangular guide groove is opened on one side of the upper part of the left and right connecting arms, and a guide pad is movably installed in each guide groove; a bearing mounting hole is opened on the lower part of the left and right connecting arms, and the first left bearing is installed in the bearing mounting hole of the lower part of the left connecting arm, and the first right bearing is installed in the bearing mounting hole of the lower part of the right connecting arm. The eccentric shaft is rotatably inserted into the guide pad in the guide groove of the left connecting arm and the guide pad in the guide groove of the right connecting arm. The left end of the eccentric shaft is rotatably mounted on the inner side of the drive side wall plate; the right end of the eccentric shaft is rotatably mounted in the through hole of the operation side wall plate. The first servo motor is mounted on the outside of the operating side wall panel via a motor mounting plate and is connected to the right end of the eccentric shaft. The punching tool mounting roller has a punching tool mounted in the middle via a support plate and a pressure plate. The left end of the punching tool mounting roller is axially movable and inserted into the inner hole of the first left bearing seat via a key. The outer diameter surface of the first left bearing seat supports the first left bearing. The left end of the first left bearing seat is connected to the second left bearing seat via a shaft coupling. The second left bearing seat is inserted into the inner hole of the second left bearing installed in the through hole of the drive side wall plate. The left end of the second left bearing seat is connected to a left shaft head. The left shaft head passes through the through hole of the drive side wall plate via a third left bearing. The left end of the left shaft head is connected to the power transmission mechanism. The right part of the punching tool mounting roller passes through the inner hole of the first right bearing. The right end of the punching tool mounting roller extends out of the through hole of the operation side wall plate and passes through the inner hole of the second right bearing. The blade pad roller is located on one side of the punching blade mounting roller. A blade groove aligned with the punching blade is circumferentially formed in the middle of the blade pad roller. The left end spindle of the blade pad roller is mounted in a through hole in the drive side wall plate through a fourth left bearing. The left end spindle of the blade pad roller extends out of the through hole in the drive side wall plate and is connected to the power transmission mechanism. The right end spindle of the blade pad roller is mounted in a through hole in the operation side wall plate through a third right bearing seat. The axial adjustment mechanism for the punching tool includes a support block and a second servo motor; wherein... The support block is disposed parallel to the operating side wall plate and the motor mounting plate, and a threaded hole is axially opened in the middle of the support block; one end of the support block supports the second right bearing through the second right bearing seat; the other end of the support block is connected to the outer end of the third right bearing seat. The second servo motor is mounted on the motor mounting plate and connected to a lead screw, which is threaded into the threaded hole of the support block. The left end of the lead screw is rotatably mounted on the operating side wall plate through a thrust washer and a shaft end retaining ring.

[0006] In the longitudinal punching knife of the aforementioned folding machine, the left end of the eccentric shaft is rotatably mounted on the drive side wall plate via a bushing, a seat sleeve, and a pressure block, while the right end of the eccentric shaft is rotatably mounted in a through hole in the operation side wall plate via a bracket, a pressure ring, and a pin.

[0007] In the longitudinal punching knife of the aforementioned roll folding machine, the two guide pads are respectively installed in the guide groove of the left connecting arm and the guide groove of the right connecting arm through two axial baffles.

[0008] In the longitudinal punching blade of the aforementioned rotary folding machine, the motor mounting plate is connected in parallel to the outer side of the operating side wall plate by several studs.

[0009] The longitudinal punching knife of the aforementioned folding machine, wherein the power transmission mechanism includes a first transmission gear mounted on the left end of the transverse punching roller, a transition shaft coaxially mounted on the drive side wall plate with the first servo motor, a transition gear mounted on the transition shaft and meshing with the first rotating gear, a second transmission gear mounted on the left end of the left shaft head and meshing with the transition gear, and a third transmission gear mounted on the left end shaft of the knife pad roller via a key and meshing with the second transmission gear.

[0010] The longitudinal punching knife of this utility model's roller folding machine has the following characteristics: 1. The punching knife and the knife pad roller are engaged and disengaged through the punching knife clutch mechanism, and the punching depth is automatically adjusted by the first servo motor, which is convenient to operate and precise to adjust; 2. The punching knife is directly mounted on the punching knife mounting roller, and the punching knife mounting roller is directly connected to the power transmission mechanism, so that the rotation of the punching knife is controllable and precise; 3. The axial adjustment of the punch is achieved through the axial adjustment mechanism of the punch, and the axial movement distance of the punch is automatically adjusted by the second servo motor. The operation is simple and saves time and effort. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the longitudinal punching blade of a folding machine in the prior art; Figure 2 This is a side view of the longitudinal punching blade of a folding machine in the prior art; Figure 3 This is a schematic diagram of the longitudinal punching knife of the folding machine of this utility model; Figure 4 yes Figure 3 Component view of the first bearing housing, shaft head coupling, second left bearing housing, and left shaft head; Figure 5 yes Figure 3 Side view. Detailed Implementation

[0012] The present invention will be further described below with reference to the accompanying drawings.

[0013] Please see Figures 3 to 5The longitudinal punching knife of the folding machine of this utility model is installed between a pair of transverse punching rollers 1B and a pair of second paper pulling rollers (not shown in the figure) of the folding machine and includes a punching knife clutch mechanism, a punching knife mounting roller 3, a knife pad roller 4 and a punching knife axial adjustment mechanism.

[0014] The punching tool clutch mechanism includes two horizontal support rods 20, a left connecting arm 21a, a right connecting arm 21b, an eccentric shaft 24, and a first servo motor 25; wherein, Two horizontal struts 20 are vertically fixed to the inner side of the drive side wall panel 100A and the inner side of the operation side wall panel 100B, respectively. The left connecting arm 21a and the right connecting arm 21b are arranged parallel to the drive side wall plate 100A or the operation side wall plate 100B, and the middle part of the left connecting arm 21a and the middle part of the right connecting arm 21b are hinged to the inner ends of the two horizontal support rods 20 in a one-to-one correspondence; a rectangular guide groove 210 is opened on one side of the upper part of the left connecting arm 21a and the upper part of the right connecting arm 21b, and a guide pad 22 is movably installed in each guide groove 210 through two baffles 220; the two baffles 220 can prevent the guide pad 22 from axially dislodging from the guide groove 210 when moving along the guide groove 210; a bearing mounting hole is opened on the lower part of the left connecting arm 21a and the lower part of the right connecting arm 21b, respectively, and the first left bearing 23a is installed in the bearing mounting hole of the lower part of the left connecting arm 21a, and the first right bearing 23b is installed in the bearing mounting hole of the lower part of the right connecting arm 21b. The eccentricity of the eccentric shaft 24 is 1.5mm. The eccentric shaft 24 is rotatably inserted into the guide pad 22 in the guide groove 210 of the left connecting arm 21a and the guide pad 22 in the guide groove 210 of the right connecting arm 21b. The left end of the eccentric shaft 24 is rotatably mounted on the inner side of the drive side wall plate 100A through the bushing 241, the seat sleeve 242 and the pressure block 243. The right end of the eccentric shaft 24 is rotatably mounted in the through hole of the operation side wall plate 100B through the bracket 244 and is pressed against the right end face of the bracket 244 by the pressure ring 245. The pressure ring 245 is fixed to the right end of the eccentric shaft 24 by the pin 246 to prevent the eccentric shaft 24 from moving axially. However, the pressure ring 245 should not be too tight against the bracket 244, and the eccentric shaft 24 should be able to rotate freely. The first servo motor 25 is mounted on the outside of the operating side wall panel 100B via a motor mounting plate 27 and connected to the right end of the eccentric shaft 24 via a first coupling 26; the motor mounting plate 27 is connected to the outside of the operating side wall panel 100B in parallel via several studs 28.

[0015] The punching tool mounting roller 3 mounts the punching tool 10 in the middle via a support plate 31 and a pressure plate 32. The left end of the punching tool mounting roller 3 is axially movable and inserted into the inner hole of the first left bearing seat 31 via a key 30. The outer diameter surface of the first left bearing seat 31 supports the first left bearing 23a. The left end of the first left bearing seat 31 is connected to the second left bearing seat 33 via a shaft coupling 32. The second left bearing seat 33 is connected to the second bearing seat 23a mounted in a through hole in the drive side wall plate 100A. The inner hole of the left bearing 34 is inserted, and the left end of the second left bearing seat 33 is connected to a left shaft head 35. The left shaft head 35 passes through the through hole of the drive side wall plate 100A through the third left bearing 36, and the left end of the left shaft head 35 is connected to the power transmission mechanism. The right part of the punching knife mounting roller 3 is inserted into the inner hole of the first right bearing 23b, and the right end of the punching knife mounting roller 3 extends out of the through hole of the operation side wall plate 100B and passes through the inner hole of the second right bearing 36.

[0016] The blade pad roller 4 is located on one side of the punching blade mounting roller 3. The blade pad roller 4 has a circumferentially formed blade groove 40 aligned with the punching blade 10 in the middle. The left end shaft of the blade pad roller 4 is installed in the through hole of the drive side wall plate 100A through the fourth left bearing 41. The left end spindle of the blade pad roller 4 extends out of the through hole of the drive side wall plate 100A and is connected to the power transmission mechanism. The right end spindle of the blade pad roller 4 is installed in the through hole of the operation side wall plate 100B through the third right bearing seat 42. The axial adjustment mechanism for the punch includes a support block 51 and a second servo motor 52; wherein, A support block 51 is disposed parallel to the operating side wall plate 100B and the motor mounting plate 27. A threaded hole is axially opened in the middle of the support block 51. One end of the support block 51 supports the second right bearing 36 through the second bearing seat 361, and the second bearing seat 361 is fixed to the support block 51 through the retaining ring 362 and the cover plate 363. The other end of the support block 51 is connected to the outer end of the third right bearing seat 42 by several screws. The second servo motor 52 is mounted on the motor mounting plate 26 and connected to a lead screw 54 via a second coupling 53. The lead screw 54 is threaded into the threaded hole of the support block 51. The left end of the lead screw 54 is rotatably mounted on the through hole of the operating side wall plate 10B via a thrust washer 55, a shaft end retaining ring 56 and a support 57.

[0017] The power transmission mechanism includes a first transmission gear 61 mounted on the left end of the transverse punching roller 1B, a transition shaft 60 coaxially mounted on the drive side wall plate 100A with the first servo motor 25, a transition gear 62 mounted on the transition shaft 60 and meshing with the first rotating gear 61, a second transmission gear 63 mounted on the left end of the left shaft head 35 via a clamping sleeve 630 and meshing with the transition gear 62, and a third transmission gear 64 mounted on the left end spindle of the cutter pad roller 4 via a key 65 and meshing with the second transmission gear 63. By mounting the transition gear 62 on the transition shaft 60, the eccentric shaft 24 does not rotate with the drive of the power transmission mechanism; the eccentric shaft 24 is driven only by the first servo motor 25, thereby realizing the engagement and disengagement of the punching cutter 10 and the cutter pad roller 4.

[0018] The longitudinal punching blade of this invention's rotary folding machine engages and disengages with the blade pad roller via a punching blade clutch mechanism. The first servo motor 25 of the punching blade clutch mechanism rotates, driving the eccentric shaft 24 to rotate. This forces the left connecting arm 21a and the right connecting arm 21b to swing around two horizontal support rods 20 in a one-to-one correspondence. The punching blade mounting roller 3, connected to the left and right connecting arms 21a and 21b, swings along with the left and right connecting arms 21a and 21b, thereby achieving the engagement and disengagement of the punching blade 10 with the blade pad roller 4. By adjusting the rotation angle of the first servo motor 25, the swing angle of the left and right connecting arms 21a and 21b can be controlled, thus precisely controlling the engagement position (punching depth) and disengagement position (when the distance between the punching blade 10 and the blade pad roller 4 is 1.5mm, it is considered disengagement), achieving radial electric adjustment of the punching blade 10. The axial adjustment of the punch 10 is achieved by the punch axial adjustment mechanism, which drives the lead screw 54 to rotate via the second servo motor 52. Since the lead screw 54 is connected to the support block 51 by a thread and can only rotate and not move axially, the rotation of the lead screw 54 forces the support block 51 to move axially. The support block 51 drives the punch mounting roller 3 and the punch pad roller 4, which are fixed together with it, to move axially, thereby achieving the axial adjustment of the position of the punch 10.

[0019] The longitudinal punching blade of this rotary folding machine uses a punching blade mounting roller 3 connected to a left shaft head 35 via a shaft head coupling 32. This allows the left shaft head 35 to be connected to a power transmission mechanism located outside the drive side wall plate 100A, ensuring the controllability and precision of the rotation of the punching blade mounting roller 3 (punching blade 10). Simultaneously, the engagement / disengagement gap between the punching blade mounting roller 3 (punching blade 10) and the blade pad roller 4 is adjusted by the rotation of the eccentric shaft 24 driven by the first servo motor 25. The rotation of the eccentric shaft 24 causes the left connecting arm 21a and the right connecting arm 21b to swing around two horizontal support rods 20 in a one-to-one correspondence, thereby realizing the engagement / disengagement of the punching blade mounting roller 3 and the blade pad roller 4 mounted on the left connecting arm 21a and the right connecting arm 21b. The radial displacement generated by the punching blade mounting roller 3 is compensated by the allowable radial deviation of the shaft head coupling 32. The axial adjustment of the punch 10 is achieved by the second servo motor 52 and the lead screw 54, which is convenient, simple and time-saving.

[0020] The paper tape 100 first passes through the triangular plate of the folding machine to achieve the first fold (vertical fold), then passes through a pair of horizontal punching rollers 1B to make the folding holes for the second fold (horizontal fold), and then passes through the vertical punching knife of this utility model to make the folding holes for the third fold (vertical fold), and then enters the subsequent folding rollers and cutting rollers in sequence.

[0021] The above embodiments are for illustrative purposes only and are not intended to limit the present invention. Those skilled in the art can make various changes or modifications without departing from the spirit and scope of the present invention. Therefore, all equivalent technical solutions should also fall within the scope of the present invention and should be defined by the claims.

Claims

1. A longitudinal punching knife for a roll-folding folding machine, installed between a pair of transverse punching rollers and a pair of second paper pulling rollers of the folding machine, and comprising a punching knife clutch mechanism, a punching knife mounting roller, a knife pad roller, and a punching knife axial adjustment mechanism; characterized in that, The punching tool clutch mechanism includes two horizontal support rods, a left connecting arm, a right connecting arm, an eccentric shaft, and a first servo motor; wherein... Two horizontal struts are vertically fixed to the inner sides of the drive side wall panel and the operating side wall panel, respectively. The left and right connecting arms are arranged parallel to the drive side wall plate or the operation side wall plate, and the middle parts of the left and right connecting arms are hinged to the inner ends of two horizontal support rods in a one-to-one correspondence; a rectangular guide groove is opened on one side of the upper part of the left and right connecting arms, and a guide pad is movably installed in each guide groove; a bearing mounting hole is opened on the lower part of the left and right connecting arms, and the first left bearing is installed in the bearing mounting hole of the lower part of the left connecting arm, and the first right bearing is installed in the bearing mounting hole of the lower part of the right connecting arm. The eccentric shaft is rotatably inserted into the guide pad in the guide groove of the left connecting arm and the guide pad in the guide groove of the right connecting arm. The left end of the eccentric shaft is rotatably mounted on the inner side of the drive side wall plate; the right end of the eccentric shaft is rotatably mounted in the through hole of the operation side wall plate. The first servo motor is mounted on the outside of the operating side wall panel via a motor mounting plate and is connected to the right end of the eccentric shaft. The punching tool mounting roller has a punching tool mounted in the middle via a support plate and a pressure plate. The left end of the punching tool mounting roller is axially movable and inserted into the inner hole of the first left bearing seat via a key. The outer diameter surface of the first left bearing seat supports the first left bearing. The left end of the first left bearing seat is connected to the second left bearing seat via a shaft coupling. The second left bearing seat is inserted into the inner hole of the second left bearing installed in the through hole of the drive side wall plate. The left end of the second left bearing seat is connected to a left shaft head. The left shaft head passes through the through hole of the drive side wall plate via a third left bearing. The left end of the left shaft head is connected to the power transmission mechanism. The right part of the punching tool mounting roller passes through the inner hole of the first right bearing. The right end of the punching tool mounting roller extends out of the through hole of the operation side wall plate and passes through the inner hole of the second right bearing. The blade pad roller is located on one side of the punching blade mounting roller. A blade groove aligned with the punching blade is circumferentially formed in the middle of the blade pad roller. The left end spindle of the blade pad roller is mounted in a through hole in the drive side wall plate through a fourth left bearing. The left end spindle of the blade pad roller extends out of the through hole in the drive side wall plate and is connected to the power transmission mechanism. The right end spindle of the blade pad roller is mounted in a through hole in the operation side wall plate through a third right bearing seat. The axial adjustment mechanism for the punching tool includes a support block and a second servo motor; wherein... The support block is disposed parallel to the operating side wall plate and the motor mounting plate, and a threaded hole is axially opened in the middle of the support block; one end of the support block supports the second right bearing through the second right bearing seat; the other end of the support block is connected to the outer end of the third right bearing seat. The second servo motor is mounted on the motor mounting plate and connected to a lead screw, which is threaded into the threaded hole of the support block. The left end of the lead screw is rotatably mounted on the operating side wall plate through a thrust washer and a shaft end retaining ring.

2. The longitudinal perforating knife of a roll folding folder according to claim 1, characterized in that The left end of the eccentric shaft is rotatably mounted on the drive side wall plate via a bushing, a seat, and a pressure block, while the right end of the eccentric shaft is rotatably mounted in a through hole in the operation side wall plate via a bracket, a pressure ring, and a pin.

3. The longitudinal punching knife of the roll-folding folding machine according to claim 1, characterized in that, The two guide pads are each installed in the guide groove of the left connecting arm and the guide groove of the right connecting arm respectively through two axial baffles.

4. The longitudinal perforating knife of a roll folding folder according to claim 1, wherein The motor mounting plate is connected to the outside of the operating side wall panel in parallel by several studs.

5. The longitudinal punching knife of the roll-folding folding machine according to claim 1, characterized in that, The power transmission mechanism includes a first transmission gear installed on the left end of the transverse punching roller, a transition shaft coaxially mounted on the drive side wall plate with the first servo motor, a transition gear mounted on the transition shaft and meshing with the first rotating gear, a second transmission gear installed on the left end of the left shaft head and meshing with the transition gear, and a third transmission gear mounted on the left end shaft of the cutter pad roller by a key and meshing with the second transmission gear.

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