Online page cutting device of folding machine

Abstract

The utility model discloses an online page cutting device of a folding machine, which relates to the technical field of printing folding and comprises a frame, two groups of first conveying belts are mounted on the inner wall of the frame, paper sheets which are being conveyed are arranged on the upper portions of the two groups of first conveying belts, and a first folding and page cutting mechanism is arranged on the upper surface of the frame. By arranging the first conveying belt, paper sheets can be conveniently conveyed, the first pushing assembly can push the paper sheets which are not folded into the folding and punching assembly, punching is carried out while folding is carried out, so that hole lines are cut in the center positions of the paper sheets, and the paper sheets are conveyed into the second pushing assembly through the first conveying belt; the paper sheets are folded again through the second pushing assembly and pushed into the folding and paper cutting assembly, redundant parts at the tops of the paper sheets are cut off at fixed points, sections can be aligned according to the positions during follow-up book arranging and line locking, and the situation that errors of the uppermost layer and the lowermost layer are large due to the fact that a single-face knife is adopted for stacking and paper cutting is avoided through paper cutting during single-piece folding.

Description

Technical Field

[0001] This utility model relates to the field of printing folding technology, specifically an online page cutting device for a folding machine. Background Technology

[0002] Currently, the problem of inaccurate cross-page images in multi-page templates persists and is difficult to control and resolve effectively, causing significant negative impacts on production quality, customers, and consumers.

[0003] In the traditional book and periodical printing and publishing process, when two sheets with different layout methods are folded and nested together, the tops of the two sheets are usually cut to the same height with a single-sided cutter to facilitate alignment during sewing and ensure good splicing of the spread images. However, because the single-sided cutter has a large error between the top and bottom sheets when cutting stacked papers, the splicing error is significant, affecting readability. To address this, we provide an online page-cutting device for folding machines to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide an online page cutting device for a folding machine. This device can cut off the excess part at the top during the folding process, so that each sheet of paper can be cut off at the same time. This avoids the error caused by the subsequent stacking of papers and cutting them at the same time, and ensures the accuracy of the cutting position and keeps the splicing error within a controllable range.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an online page cutting device for a folding machine, comprising a frame, two sets of first conveyor belts installed on the inner wall of the frame, paper sheets being conveyed being disposed on the upper part of the two sets of first conveyor belts, a first folding and page cutting mechanism disposed on the upper surface of the frame, the first folding and page cutting mechanism comprising a folding and cutting hole assembly fixed on the upper surface of the frame, and a first pushing assembly connected to the folding and cutting hole assembly, the first pushing assembly being used to push the paper into the folding and cutting hole assembly.

[0006] The upper surface of the frame is also provided with a second folding and cutting mechanism. The second folding and cutting mechanism includes a second pushing component fixed to the upper surface of the frame and a folding and cutting component located below the two sets of first conveyor belts. The inner wall of the frame is equipped with a second conveyor belt located below the folding and cutting component.

[0007] Furthermore, the folding and cutting assembly includes a first gantry frame fixed to the upper surface of the frame, and two folding shafts rotatably connected to the inner wall of the first gantry frame. Two first blades are fitted on the outer surfaces of the two folding shafts, and a venting knife is installed between the two first blades through a pin. By setting the folding and cutting assembly, it is convenient to perform the first folding of the unclamped paper, and during the folding process, it is possible to cut and draw lines at the center position of the paper.

[0008] Furthermore, the first pushing component includes a second gantry frame fixed to the upper surface of the first gantry frame, and a lifting motor installed on the upper surface of the second gantry frame. The output end of the lifting motor passes through the upper surface of the second gantry frame and is fixedly connected to a first transmission plate. By setting the first pushing component, the lifting motor in the first pushing component can push the first transmission plate to descend, so that the first transmission plate pushes the subsequent components to push the undone paper into the folding and cutting component.

[0009] Furthermore, the first pushing assembly also includes a through groove formed on the upper surface of the first gantry frame for paper to pass through, and two first pushing plates fixed on the bottom surface of the first transmission plate and located directly above the through groove. By setting the first pushing assembly and the through groove in the first pushing assembly, it is possible for the unfolded paper to pass through the through groove and slowly fall into the folding and cutting assembly for the first folding and cutting.

[0010] Furthermore, the second pushing assembly includes a third gantry frame fixed to the upper surface of the frame, and an electric push rod installed on the upper surface of the third gantry frame. The output end of the electric push rod slides through the third gantry frame and is fixedly connected to a second transmission plate. A second pushing plate is fixedly connected to the bottom surface of the second transmission plate, and a stabilizing rod is fixedly connected to the upper surface of the second transmission plate and slidably connected to a pre-drilled hole on the upper surface of the third gantry frame. By setting the second pushing assembly, it is convenient to push the paper sheet after folding and cutting the line a second time. By pushing the cut hole at the center of the paper sheet, it is possible to ensure that the paper sheet is pushed for a subsequent second fold, and the paper sheet can pass between the two first conveyor belts during the pushing process.

[0011] Furthermore, the folding and cutting assembly includes a connecting plate fixed to the inner wall of the frame, and a first cutter shaft and a second cutter shaft rotatably connected to the outer surface of the connecting plate. The outer surfaces of the first cutter shaft and the second cutter shaft are each provided with two second cutter blades. A blade is installed between the two second cutter blades located on the first cutter shaft via a pin. By setting up the folding and cutting assembly, and the arrangement of the first cutter shaft and the second cutter shaft within the folding and cutting assembly, it is possible to facilitate the second folding of the folded paper. During the second folding, the blank space of the paper can be cut off by the blade, thereby separating the paper into two parts. The blank space part falls into the waste discharge device below, and the book part is conveyed to the rear stack by a conveyor belt.

[0012] Furthermore, one end of the first and second cutter shafts passes through the connecting plate and is respectively fixedly connected to a drive gear and a driven gear. The drive gear and the driven gear mesh with each other. The folding and cutting assembly also includes a mounting frame fixed to the outer surface of the connecting plate and a servo motor mounted on the inner wall of the mounting frame. The output shaft of the servo motor is fixedly connected to the drive gear. By setting the folding and cutting assembly and the mounting frame inside the folding and cutting assembly, the installation and stability of the servo motor can be facilitated, thereby enabling the servo motor to drive the drive gear to rotate, so that the drive gear and the driven gear mesh and transmit power, thereby enabling the first and second cutter shafts to rotate close to each other, and thus enabling the paper to be folded a second time.

[0013] Compared with existing technologies, this online page trimming device for folding machines has the following advantages:

[0014] 1. This utility model, by setting a first conveyor belt, facilitates the transport of paper sheets. The first pushing component can push the undone paper into the folding and cutting component, and cut holes while folding, so that the center of the paper sheet is cut with a hole line. The paper sheet is then transported to the second pushing component by the first conveyor belt, where the second pushing component folds the paper sheet again and pushes it into the folding and cutting component to cut off the blank space of the paper sheet, which facilitates subsequent packaging. Furthermore, by cutting the paper sheet during single-sheet folding, the flatness of the subsequent packaging can be ensured, avoiding the situation where the top and bottom layers have large errors due to stacking and cutting the paper after folding.

[0015] 2. This utility model, by setting a second pushing component, facilitates a second pushing of the paper after folding and cutting. By pushing the paper through the cut hole at the center, it ensures that the paper can be folded a second time. By setting a folding and cutting component, and the setting of the first and second blade shafts within the folding and cutting component, it is easy to fold the paper a second time. During the second fold, the blank space of the paper can be cut off by the blade, thereby separating the paper into two parts. The blank space part falls into the waste discharge device below, and the book part is conveyed to the rear stack by the conveyor belt. Attached Figure Description

[0016] Figure 1 This is a three-dimensional front view of the overall device of this utility model;

[0017] Figure 2 This is a three-dimensional structural cross-sectional view of the overall device of this utility model;

[0018] Figure 3 This is a bottom sectional view of the three-dimensional structure of the overall device of this utility model;

[0019] Figure 4 This utility model Figure 2 A magnified view of a portion of point A in the middle;

[0020] Figure 5 This utility model Figure 3 A magnified view of a portion of point B in the middle.

[0021] In the diagram: 1. Frame; 2. First conveyor belt; 3. Paper sheet; 4. First folding and cutting mechanism; 401. First gantry frame; 402. Folding shaft; 403. First blade; 404. Vent knife; 405. Second gantry frame; 406. Lifting motor; 407. First transmission plate; 408. Through groove; 409. First push plate; 5. Second folding and cutting mechanism; 501. Third gantry frame; 502. Electric push rod; 503. Second transmission plate; 504. Second push plate; 505. Stabilizing bar;

[0022] 506. First cutter shaft; 507. Second cutter shaft; 508. Second cutter head; 509. Cutting blade;

[0023] 5010, Drive gear; 5011, Driven gear; 5012, Mounting frame; 5013, Servo motor; 5014, Connecting plate; 6, Second conveyor belt. Detailed Implementation

[0024] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0025] As described in the background section, traditional single-sided cutters have a large error between the top and bottom sheets when cutting stacked papers, resulting in significant page-joining errors and affecting readability. To address this, this embodiment provides an online page-cutting device for a folding machine. This device can cut pages during the folding process, ensuring that each sheet is cut as it is folded. This avoids the errors caused by cutting subsequent stacked papers at the same time, and ensures accurate cutting positions, keeping page-joining errors within a controllable range.

[0026] See Figure 1 - Figure 5 This embodiment proposes an online page cutting device for a folding machine, including a frame 1. Two sets of first conveyor belts 2 are installed on the inner wall of the frame 1. Paper sheets 3 are being transported on the upper part of the two sets of first conveyor belts 2. A first folding and page cutting mechanism 4 is provided on the upper surface of the frame 1. The first folding and page cutting mechanism 4 includes a folding and cutting hole assembly fixed on the upper surface of the frame 1, and a first pushing assembly connected to the folding and cutting hole assembly. The first pushing assembly is used to push the paper into the folding and cutting hole assembly.

[0027] refer to Figures 1 to 5 The first conveyor belt 2 is configured such that there is a gap between the two sets of first conveyor belts 2, and the gap facilitates the passage of paper. Thus, the paper sheet 3 on the first conveyor belt 2 can be pushed from the center position of the paper sheet 3 to the subsequent folding and cutting component for secondary folding and cutting by the subsequent second pushing component. The driving method of the first conveyor belt 2 can be set by the user, and different driving methods can be used according to the needs, but the synchronous transmission between the two sets of first conveyor belts 2 must be ensured.

[0028] As a supplement, the folding and cutting assembly can facilitate the initial folding of the unclamped paper sheet 3, and during the folding process, it can cut a line at the center of the paper sheet 3, thereby facilitating the subsequent pushing of the second pushing assembly to the center cut line of the paper sheet 3.

[0029] As a supplement, the folding and cutting assembly can be configured with a drive component to make the two folding shafts 402 rotate in opposite directions. The drive component can refer to the drive method of the subsequent folding and cutting assembly, but it is necessary to ensure that the rotation directions of the two folding shafts 402 are opposite to each other to ensure that the paper is folded.

[0030] The folding and cutting assembly includes a first gantry frame 401 fixed to the upper surface of the frame 1, and two folding shafts 402 rotatably connected to the inner wall of the first gantry frame 401. Two first cutting blades 403 are fitted on the outer surfaces of the two folding shafts 402, and a venting knife 404 is installed between the two first cutting blades 403 by means of a pin.

[0031] By setting up a folding and cutting component, it is easy to fold the paper sheet 3 that has not yet been folded for the first time, and during the folding process, it is possible to cut and draw lines at the center of the paper sheet 3.

[0032] As a supplement, the undisturbed paper sheet 3 is pushed and transmitted by the first pushing component, which allows the paper sheet 3 to slowly descend between the two folding shafts 402. The two folding shafts 402 are driven to rotate in a direction that brings them closer to each other by a self-set driving device, so that the two folding shafts 402 can fold the paper sheet 3 for the first time. When the folding shafts 402 rotate, the air knife 404 can cut a hole and draw a line at the center position of the paper sheet 3. The air knife 404 is set up and can be connected to the first blade 403 and the air knife 404 by a pin, and the air knife 404 can be disassembled or replaced by itself.

[0033] The first pushing assembly includes a second gantry frame 405 fixed to the upper surface of the first gantry frame 401, and a lifting motor 406 installed on the upper surface of the second gantry frame 405. The output end of the lifting motor 406 passes through the upper surface of the second gantry frame 405 and is fixedly connected to a first transmission plate 407.

[0034] By setting a first pushing component, and the setting of a lifting motor 406 inside the first pushing component, the first transmission plate 407 can be pushed down, so that the first transmission plate 407 pushes the subsequent components to push the unfolded paper sheet 3 into the folding and cutting component.

[0035] As a supplement, the lifting motor 406 is a known device in the prior art, and its setting method can be operated according to the instruction manual accompanying the lifting motor 406. The lifting motor 406 is mainly used to push and lift the first transmission plate 407.

[0036] The first pushing assembly also includes a through slot 408 formed on the upper surface of the first gantry frame 401 for paper to pass through, and two first pushing plates 409 fixed to the bottom surface of the first transmission plate 407 and located directly above the through slot 408.

[0037] By setting the first pushing component, the through groove 408 inside the first pushing component allows the unfolded paper sheet 3 to pass through the through groove 408 and slowly fall into the folding and cutting component for the first folding and cutting.

[0038] As a supplement, the arrangement of the two first push plates 409 can avoid pushing the center position of the unfolded paper sheet 3, thereby ensuring that the folding and cutting assembly marks the cutting line at the center position of the paper sheet 3 and avoids collision between the first push plate 409 and the folding and cutting assembly.

[0039] The upper surface of the frame 1 is also provided with a second folding and cutting mechanism 5. The second folding and cutting mechanism 5 includes a second pushing component fixed to the upper surface of the frame 1 and a folding and cutting component located below the two sets of first conveyor belts 2. The inner wall of the frame 1 is equipped with a second conveyor belt 6 located below the folding and cutting component.

[0040] refer to Figures 1 to 5 The second pushing component can push the paper sheet 3 after the first fold and cutting line from the center cutting line position, and be pushed down into the folding and cutting component by the limiting push of the first conveyor belt 2, so that the folding and cutting component can fold the paper sheet 3 a second time. At the same time as the second folding, the edge connection of the paper sheet 3 can be cut, so that the paper sheet 3 can be separated into two paper sheets 3 with cutting lines, and then can be transferred to the stacking device in the subsequent production line by the second conveyor belt 6 for stacking.

[0041] As a supplement, the second conveyor belt 6 can be configured with a drive component to drive the second conveyor belt 6 for transmission, and therefore is not specified in detail in the figures and this utility model.

[0042] The second pushing assembly includes a third gantry frame 501 fixed to the upper surface of the frame 1, and an electric push rod 502 installed on the upper surface of the third gantry frame 501. The output end of the electric push rod 502 slides through the third gantry frame 501 and is fixedly connected to a second transmission plate 503. A second push plate 504 is fixedly connected to the bottom surface of the second transmission plate 503, and a stabilizing rod 505 is fixedly connected to the upper surface of the second transmission plate 503 and is slidably connected to a pre-drilled hole on the upper surface of the third gantry frame 501.

[0043] By setting the second pushing component, it is easy to push the paper sheet 3 after the folding and cutting line is pushed a second time. By pushing the cut hole at the center of the paper sheet 3, it is possible to push the paper sheet 3 for a subsequent second fold, and the paper sheet 3 can pass between the two first conveyor belts 2 during the pushing process.

[0044] As a supplement, when the folded paper sheet 3 is pushed for the second time, the electric push rod 502 is activated. The output end of the electric push rod 502 pushes the second transmission plate 503 to descend, so that the second transmission plate 503 drives the second push plate 504 to push the folded paper sheet 3 downward, so that the paper sheet 3 can slowly fall from between the two first conveyor belts 2 into the subsequent folding and cutting assembly for secondary folding and cutting of the creases from the first fold.

[0045] The folding and cutting assembly includes a connecting plate 5014 fixed to the inner wall of the frame 1, and a first cutter shaft 506 and a second cutter shaft 507 rotatably connected to the outer surface of the connecting plate 5014. The outer surfaces of the first cutter shaft 506 and the second cutter shaft 507 are each provided with two second cutter blanks 508. A blade 509 is installed between the two second cutter blanks 508 located on the first cutter shaft 506 via a pin.

[0046] By setting up a folding and cutting assembly, and the setting of the first blade shaft 506 and the second blade shaft 507 in the folding and cutting assembly, it is easy to fold the folded paper sheet 3 a second time. During the second fold, the blade 509 can cut off the blank space at the top of the paper sheet 3, thereby separating the paper sheet 3 into two parts.

[0047] As a supplement, the blade 509 is installed at the first blade shaft 506 and located between the two sets of second blades 508, so that the blade 509 can cut the paper. The second blades 508 are connected to the blade 509 by a pin, which makes it easy to replace or remove the blade 509 as needed.

[0048] One end of the first cutter shaft 506 and the second cutter shaft 507 passes through the connecting plate 5014 and is respectively fixedly connected to the drive gear 5010 and the driven gear 5011. The drive gear 5010 and the driven gear 5011 mesh with each other. The folding and cutting assembly also includes a mounting frame 5012 fixed on the outer surface of the connecting plate 5014, and a servo motor 5013 installed on the inner wall of the mounting frame 5012. The output shaft of the servo motor 5013 is fixedly connected to the drive gear 5010.

[0049] By setting up a folding and cutting assembly, and the mounting frame 5012 inside the folding and cutting assembly, the installation and stability of the servo motor 5013 can be facilitated. This allows the servo motor 5013 to drive the drive gear 5010 to rotate, so that the drive gear 5010 meshes with the driven gear 5011 for transmission. This enables the first cutter shaft 506 and the second cutter shaft 507 to rotate close to each other, thereby enabling the paper to be folded a second time.

[0050] As a supplement, while the paper sheet 3 is folded a second time in the folding and cutting assembly after the first fold, the blank space at the top of the paper sheet 3 can be cut off, thereby separating the paper sheet 3 into two parts and transferring them to the second conveyor belt 6 for subsequent transport.

[0051] Working principle: When folding and cutting paper, the undone paper sheet 3 is first placed on the upper surface of the first gantry frame 401, or the undone paper sheet 3 can be conveyed to the upper surface of the first gantry frame 401 through the conveyor in the production line. At this time, the lifting motor 406 is started. The output end of the lifting motor 406 pushes the first transmission plate 407 to descend, so that the first transmission plate 407 drives the two first push plates 409 to push the undone paper sheet 3 down and through the through groove 408 to the folding and cutting hole assembly. The undone paper sheet 3 is folded by the limit of the two folding shafts 402. At the same time, the air knife 404 can cut a hole in the center position of the folded paper sheet 3, so that the paper sheet 3 has a hole in the center position after folding. The paper sheet 3 with the first fold and the hole can fall to the first conveyor belt 2 and be transported to the second push assembly through the first conveyor belt 2.

[0052] When the paper sheet 3 is conveyed to the second pushing assembly via the first conveyor belt 2, the electric push rod 502 can be activated. The output end of the electric push rod 502 pushes the second transmission plate 503 and the second pushing plate 504 to descend, thereby allowing the second pushing plate 504 to push the paper sheet 3 from the center position. The paper sheet 3 is then slowly lowered into the folding and cutting assembly by the first conveyor belts 2 on both sides. At the same time, the servo motor 5013 can be activated. The output shaft of the servo motor 5013 drives the drive gear 5010 to rotate, causing the drive gear 5010 to mesh with the driven gear 5011. This causes the first cutter shaft 506 and the second cutter shaft 507 to rotate in opposite directions, thereby performing a second fold on the paper sheet 3. During the folding, the crease of the paper sheet 3 can be cut by the blade 509, thus separating the paper sheet 3 into two pieces of paper with markings. These pieces then fall into the second conveyor belt 6 for transport, and can be automatically transported to the stacking, packaging, and other areas in the subsequent production line.

Claims

1. An in-line folding machine for folding sheets, comprising a frame (1), characterized in that: The inner wall of the frame (1) is provided with two groups of first conveying belts (2), the upper part of the two groups of first conveying belts (2) is provided with a paper sheet (3) being conveyed, the upper surface of the frame (1) is provided with a first folding and cutting mechanism (4), the first folding and cutting mechanism (4) comprises a folding and cutting hole assembly fixed on the upper surface of the frame (1), and a first pushing assembly connected with the folding and cutting hole assembly, the first pushing assembly is used for pushing the paper sheet into the folding and cutting hole assembly. The upper surface of the frame (1) is further provided with a second folding and cutting mechanism (5), the second folding and cutting mechanism (5) comprises a second pushing assembly fixed on the upper surface of the frame (1), and a folding and cutting paper assembly located below the two groups of first conveying belts (2), the inner wall of the frame (1) is provided with a second conveying belt (6) located below the folding and cutting paper assembly.

2. A folding machine in-line folding device according to claim 1, characterized in that: The folding and cutting hole assembly comprises a first gantry frame (401) fixed on the upper surface of the frame (1), and two folding shafts (402) rotatably connected with the inner wall of the first gantry frame (401), the outer surfaces of the two folding shafts (402) are both sleeved with two first knife tires (403), and a ventilation knife (404) is arranged between the two first knife tires (403) through a pin shaft.

3. A folding machine in-line folding device according to claim 2, characterized in that: The first pushing assembly comprises a second gantry frame (405) fixed on the upper surface of the first gantry frame (401), and a lifting motor (406) arranged on the upper surface of the second gantry frame (405), and the output end of the lifting motor (406) penetrates through the upper surface of the second gantry frame (405) and is fixedly connected with a first transmission plate (407).

4. A folding machine in-line folding device according to claim 3, characterised in that: The first pushing assembly further comprises a through slot (408) formed in the upper surface of the first gantry frame (401) and used for the paper sheet to pass through, and two first pushing plates (409) fixed on the bottom surface of the first transmission plate (407) and located directly above the through slot (408).

5. A folding machine in-line folding device according to claim 1, characterized in that: The second pushing assembly comprises a third gantry frame (501) fixed on the upper surface of the frame (1), and an electric push rod (502) arranged on the upper surface of the third gantry frame (501), the output end of the electric push rod (502) slidably penetrates through the third gantry frame (501) and is fixedly connected with a second transmission plate (503), the bottom surface of the second transmission plate (503) is fixedly connected with a second pushing plate (504), and the upper surface of the second transmission plate (503) is fixedly connected with a stabilizing rod (505) slidably connected with a reserved hole in the upper surface of the third gantry frame (501).

6. An in-line folding apparatus as claimed in claim 1, characterized in that: The folding and cutting paper assembly comprises a connecting plate (5014) fixed on the inner wall of the frame (1), and a first knife shaft (506) and a second knife shaft (507) rotatably connected with the outer surface of the connecting plate (5014), the outer surfaces of the first knife shaft (506) and the second knife shaft (507) are both provided with two second knife tires (508), and a blade (509) is arranged between the two second knife tires (508) on the first knife shaft (506) through a pin shaft.

7. A folding machine in-line folding device according to claim 6, characterized in that: One end of the first cutter shaft (506) and the second cutter shaft (507) penetrates the connecting plate (5014) and is fixedly connected with the driving gear (5010) and the driven gear (5011) respectively, the driving gear (5010) and the driven gear (5011) are engaged, the folding paper cutting assembly further comprises a mounting frame (5012) fixed on the outer surface of the connecting plate (5014), and a servo motor (5013) mounted on the inner wall of the mounting frame (5012), the output rotating shaft of the servo motor (5013) is fixedly connected with the driving gear (5010).

Images