Winding, guiding and paper cutting device of printing machine
By designing transversely movable pressing rollers and paper cutting components in the printing press, the problem of difficulty in adapting to different paper rolling modes in the prior art is solved, and flexible pressing and cutting of paper is achieved, improving the convenience of operation and control accuracy of the device.
Patent Information
- Application Number
- CN202323660068.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-29
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2033-12-29
AI Technical Summary
The existing printing press winding stations are difficult to adapt to the paper that is tightened and cannot be compressed and rolled. Especially when the outer diameter of the paper roll changes, the flexibility and accuracy of the paper cutting device are insufficient.
A roll-up guide paper cutting device including a frame, a first lateral movement mechanism, a second lateral movement mechanism and a guide paper cutting mechanism is designed, and the press roller is driven to move horizontally through the second lateral movement drive group to adapt to the outer diameter of the paper roll. Change and realize paper cutting action through paper cutting assembly to ensure that the cutting position is consistent with the length of the press roller, and use paper cutting cylinder and swing arm to improve paper cutting speed and accuracy.
It realizes flexible adaptation of the two paper rolling modes, ensuring consistent cutting position and convenient operation, while reducing equipment control complexity.
Smart Images
Figure CN222181272U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of printing machines, in particular to a winding guide paper cutting device of a printing machine. Background Art
[0002] After the paper is printed by the printing press, it is generally rolled up by a winding device. The paper is divided into two types: compact winding and non-compact winding. The compact winding is to press the paper on the paper roll by a pressure roller, while the non-compact winding leaves a large gap between the pressure roller and the paper roll. At this time, the pressure roller plays a guiding role. The current winding station is difficult to adapt to the above two winding conditions when working. Utility Model Content
[0003] The utility model aims to provide a reel-guided paper cutting device for a printing press, so as to solve one or more technical problems existing in the prior art and at least provide a beneficial choice or create conditions.
[0004] The technical solutions adopted to solve the above technical problems are:
[0005] The utility model provides a winding guide paper cutting device of a printing press, comprising: a frame, a first transverse movement mechanism, a second transverse movement mechanism and a guide paper cutting mechanism, wherein the first transverse movement mechanism comprises a first transverse movement frame installed on the frame, and a first transverse movement driving group driving the first transverse movement frame to move transversely relative to the frame; the second transverse movement mechanism comprises a second transverse movement frame installed on the first transverse movement frame, and a second transverse movement driving group driving the first transverse movement frame to move transversely relative to the first transverse movement frame; the guide paper cutting mechanism comprises a pressure roller and a paper cutting assembly which are longitudinally extended and arranged on the second transverse movement frame.
[0006] The beneficial effects of the utility model are as follows: when it is necessary to press the paper onto the paper roll, the second transverse shifting drive group drives the second transverse shifting frame to move transversely in the direction close to the paper roll, so as to drive the pressure roller to move transversely in the direction close to the paper roll, and press the paper onto the outer periphery of the paper roll for winding; when the paper does not need to be pressed and wound, the second transverse shifting drive group drives the second transverse shifting frame to move transversely in the direction away from the paper roll, and at this time a set gap is formed between the pressure roller and the outer periphery of the paper roll; after adjusting the distance between the pressure roller and the outer periphery of the paper roll, as the outer diameter of the paper roll increases during the winding process, the first transverse shifting drive group drives the first transverse shifting frame to move transversely in the direction away from the paper roll, so as to drive the pressure roller to move transversely in the direction away from the paper roll to adapt to the change in the outer diameter of the paper roll; when it is necessary to cut the paper and change the roll, the paper is cut by the paper cutting assembly, thereby realizing two modes of paper winding, and the operation is convenient.
[0007] As a further improvement of the above technical solution, the paper cutting assembly includes a knife holder, a cutter, and a paper cutting drive group. The knife holder swings around a longitudinal swing axis and is connected to a second transverse frame. The paper cutting drive group is used to drive the knife holder to swing. The cutter is installed at the swinging end of the knife holder.
[0008] In this solution, the paper cutting drive group drives the knife holder to swing, so as to realize the swing cutting of the cutter.
[0009] As a further improvement of the above technical solution, the swing center of the tool holder is coaxially arranged with the central axis of the pressure roller.
[0010] This ensures that after each paper cut, the paper cutting position and the length between the pressure rollers remain consistent.
[0011] As a further improvement of the above technical solution, the cutter is located below the pressure roller.
[0012] The cutter of this solution swings from bottom to top to achieve the paper cutting action, which is mainly matched with the winding mechanism.
[0013] As a further improvement of the above technical solution, the paper cutting drive group includes a paper cutting cylinder, and both ends of the paper cutting cylinder are respectively hinged to the second transverse moving frame and the knife frame.
[0014] In this solution, the paper cutting cylinder drives the knife holder to swing relative to the second transverse moving frame, thereby increasing the speed of the paper cutting action.
[0015] As a further improvement of the above technical solution, both ends of the pressure roller are rotatably connected to the second transverse frame via a rotating shaft, and both ends of the tool holder are provided with swing arms rotatably connected to the rotating shaft.
[0016] The knife holder and the pressure roller in this solution are both connected to the rotating shaft, which makes the structure more compact.
[0017] As a further improvement of the above technical solution, two paper cutting cylinders are provided, and the two paper cutting cylinders are respectively connected to the two swing arms.
[0018] In this solution, two paper cutting cylinders are used to synchronously drive the swing arms to swing, so as to drive the knife holder to realize the swing cutting action, so that the force on both ends of the knife holder is more uniform.
[0019] As a further improvement of the above technical solution, the second transverse moving frame includes two second side plates and a second cross bar connected between the second side plates, and the pressing roller and the paper cutting assembly are installed between the two second side plates;
[0020] The first transverse moving frame includes two first side plates, a first cross bar connected between the first side plates, two second side plates are respectively connected to the inner sides of the two first side plates in a transverse sliding manner, and the two first side plates are connected to the frame in a transverse sliding manner.
[0021] In this way, a space for paper to pass through can be formed between the two second side plates to adapt to the paper output of the printing press.
[0022] As a further improvement of the above technical solution, the second transverse driving group includes two transverse cylinders respectively installed on the two first side plates, and the two transverse cylinders are transmission-connected to the two second side plates.
[0023] This solution uses two transverse cylinders to synchronously drive the two second side plates to move transversely, wherein the transverse stroke of the second side plate relative to the first side plate is a fixed value. It can be understood that when there is no need to tighten the reel, the distance between the pressure roller and the outer wall of the paper roll is fixed, which can reduce the complexity of the equipment control program.
[0024] As a further improvement of the above technical solution, the first transverse driving group includes a transmission shaft arranged along the longitudinal direction, a rotation driving component driving the transmission shaft to rotate, and two gears sleeved on the transmission shaft. The two first side plates are both provided with racks extending along the transverse direction, and the racks are meshed with the gears.
[0025] The first transverse shift drive group of the present invention drives two gears to rotate via a transmission shaft, and under the meshing transmission of the two gears and two racks, the two first side plates can be synchronously driven to transversely shift, thereby improving the transverse shift accuracy of the first side plates. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] The utility model is further described below in conjunction with the accompanying drawings and embodiments;
[0027] Figure 1 This is a structural schematic diagram of an embodiment of the winding guide paper cutting device provided by the utility model;
[0028] Figure 2 This is a side cross-sectional view of an embodiment of the winding guide paper cutting device provided by the utility model;
[0029] Figure 3 The utility model is provided with a reeling guide paper cutting device, and an assembly schematic diagram of an embodiment thereof with a reeling device when in use. DETAILED DESCRIPTION
[0030] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.
[0031] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.
[0032] In the description of the present utility model, if there are words such as "several", it means one or more, "more" means more than two, greater than, less than, exceed, etc. are understood to exclude the number, and above, below, within, etc. are understood to include the number.
[0033] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.
[0034] Reference Figure 1 to Figure 3 The utility model is a printing press winding guide paper cutting device to make the following embodiments:
[0035] The winding guide paper cutting device of this embodiment includes a frame 100, a first transverse movement mechanism, a second transverse movement mechanism and a guide paper cutting mechanism.
[0036] The frame 100 includes two fixed side plates which are relatively fixed, and the second transverse movement mechanism and the guide paper cutting mechanism are installed between the two fixed side plates.
[0037] The first transverse movement mechanism of the present embodiment includes a first transverse movement frame 200 installed on the frame 100 and a first transverse movement drive group that drives the first transverse movement frame 200 to move transversely relative to the frame 100. Specifically: the first transverse movement frame 200 of the present embodiment includes two first side plates 210 and a first cross bar 220 connected between the first side plates 210, wherein a plurality of first cross bars 220 may be provided to improve the structural strength of the first transverse movement frame 200.
[0038] Guide rails are provided on both fixed side plates of the frame 100 , and the first side plate 210 is slidably connected to the guide rails.
[0039] The first transverse driving group includes a transmission shaft 700 longitudinally installed on the frame 100, a rotating driving component 710 driving the transmission shaft 700 to rotate, and two gears 720 sleeved on the transmission shaft 700. The two first side plates 210 are both provided with a rack 730 extending in the transverse direction, and the rack 730 is meshed with the gear 720.
[0040] The first transverse driving group of this embodiment drives the two gears 720 to rotate through the transmission shaft 700. Under the meshing transmission of the two gears 720 and the two racks 730, the two first side plates 210 can be synchronously driven to move transversely, thereby improving the transverse movement accuracy of the first side plates 210.
[0041] The second transverse movement mechanism includes a second transverse movement frame 300 installed on the first transverse movement frame 200, and a second transverse movement drive group that drives the first transverse movement frame 200 to move laterally relative to the first transverse movement frame 200. Specifically: the second transverse movement frame 300 of this embodiment includes two second side plates 310 and a second cross bar 320 connected between the second side plates 310.
[0042] In this embodiment, a guide rail is provided on the inner side of the first side plate 210 , and the second side plate 310 is slidably connected to the guide rail.
[0043] The second transverse driving group includes two transverse cylinders 600 respectively installed on the two first side plates 210. The two transverse cylinders 600 are transmission-connected to the two second side plates 310. In this embodiment, the two transverse cylinders 600 are used to synchronously drive the two second side plates 310 to move transversely.
[0044] The guiding paper cutting mechanism includes a pressing roller 400 and a paper cutting assembly 500 , and the pressing roller 400 and the paper cutting assembly 500 are arranged between the two second side plates 310 along the longitudinal direction.
[0045] The two ends of the pressing roller 400 are rotatably connected to the two second side plates 310 via a rotating shaft.
[0046] The paper cutting assembly 500 includes a knife frame 510, a cutter 520, and a paper cutting drive group. The knife frame 510 is connected to the second transverse frame 300 and swings around a longitudinal swing axis. The paper cutting drive group is used to drive the knife frame 510 to swing. The cutter 520 is installed at the swinging end of the knife frame 510. The knife frame 510 is driven to swing by the paper cutting drive group to achieve swing cutting of the cutter 520.
[0047] The swing center of the knife holder 510 of the present embodiment is coaxially arranged with the central axis of the pressure roller 400, so that it can be ensured that after each paper cutting, the length between the paper cutting position and the pressure roller 400 remains consistent.
[0048] Specifically, swing arms 511 rotatably connected to the rotating shaft are provided at both ends of the tool holder 510 , and the tool holder 510 and the pressure roller 400 are both connected to the rotating shaft, which makes the structure more compact.
[0049] The paper cutting drive group includes a paper cutting cylinder 530, and both ends of the paper cutting cylinder 530 are respectively hinged to the second side plate 310 and the knife holder 510. The paper cutting cylinder 530 drives the knife holder 510 to swing relative to the second transverse frame 300, thereby improving the speed of the paper cutting action.
[0050] Furthermore, two paper cutting cylinders 530 are provided, and the two paper cutting cylinders 530 are respectively connected to the two swing arms 511. In this embodiment, the two paper cutting cylinders 530 are used to synchronously drive the swing arms 511 to swing, so as to drive the tool holder 510 to realize the swing cutting action, so that the force on both ends of the tool holder 510 is more uniform.
[0051] The cutter 520 of this embodiment is located below the pressure roller 400, and the cutter 520 swings from bottom to top to achieve paper cutting, which is mainly matched with the winding mechanism.
[0052] When it is necessary to press the paper against the paper roll, the second transverse drive group drives the second transverse frame 300 to move transversely in the direction close to the paper roll, so as to drive the pressure roller 400 to move transversely in the direction close to the paper roll, and press the paper against the outer periphery of the paper roll for winding; when the paper does not need to be pressed and wound, the second transverse drive group drives the second transverse frame 300 to move transversely in the direction away from the paper roll, and at this time, a set gap is formed between the pressure roller 400 and the outer periphery of the paper roll; after adjusting the distance between the pressure roller 400 and the outer periphery of the paper roll, as the outer diameter of the paper roll increases during the winding process, the first transverse drive group drives the first transverse frame 200 to move transversely in the direction away from the paper roll, so as to drive the pressure roller 400 to move transversely in the direction away from the paper roll to adapt to the change in the outer diameter of the paper roll; when it is necessary to cut the paper and change the roll, the paper is cut by the paper cutting assembly 500, thereby realizing two modes of paper winding, which is easy to operate.
[0053] The second transverse shift drive group of this embodiment adopts a transverse shift cylinder 600, so that the transverse shift stroke of the second side plate 310 relative to the first side plate 210 is a fixed value. It can be understood that when there is no need for compression and winding, the distance between the pressure roller 400 and the outer wall of the paper roll is fixed, which can reduce the complexity of the equipment control program.
[0054] The preferred implementation modes of the present invention are specifically described above, but the present invention is not limited to the described embodiments. Those skilled in the art may make various equivalent modifications or substitutions without violating the spirit of the present invention, and these equivalent modifications or substitutions are all included in the scope defined by the claims of this application.
Claims
1. A reel-guided paper cutting device for a printing press, characterized in that: include: Rack(100); The first transverse movement mechanism comprises a first transverse movement frame (200) installed on the frame (100) and a first transverse movement driving group for driving the first transverse movement frame (200) to move transversely relative to the frame (100); The second transverse movement mechanism comprises a second transverse movement frame (300) mounted on the first transverse movement frame (200), and a second transverse movement driving group driving the first transverse movement frame (200) to move transversely relative to the first transverse movement frame (200); The guide paper cutting mechanism comprises a pressure roller (400) and a paper cutting assembly (500) which are arranged on the second transverse moving frame (300) and extend in the longitudinal direction.
2. The winding guide paper cutting device according to claim 1, characterized in that: The paper cutting assembly (500) comprises a knife frame (510), a cutter (520), and a paper cutting drive group. The knife frame (510) is connected to the second transverse moving frame (300) by swinging around a longitudinal swing axis. The paper cutting drive group is used to drive the knife frame (510) to swing. The cutter (520) is installed at the swinging end of the knife frame (510).
3. The winding guide paper cutting device according to claim 2, characterized in that: The swing center of the tool holder (510) is coaxially arranged with the central axis of the pressure roller (400).
4. The winding guide paper cutting device according to claim 3, characterized in that: The cutter (520) is located below the pressing roller (400).
5. The winding guide paper cutting device according to claim 3, characterized in that: The paper cutting drive group comprises a paper cutting cylinder (530), and two ends of the paper cutting cylinder (530) are respectively hinged to the second transverse moving frame (300) and the knife frame (510).
6. The winding guide paper cutting device according to claim 5, characterized in that: Both ends of the pressure roller (400) are rotatably connected to the second transverse moving frame (300) via a rotating shaft, and both ends of the tool holder (510) are provided with swing arms (511) rotatably connected to the rotating shaft.
7. The winding guide paper cutting device according to claim 6, characterized in that: Two paper cutting cylinders (530) are provided, and the two paper cutting cylinders (530) are respectively connected to the two swing arms (511).
8. The winding guide paper cutting device according to claim 1, characterized in that: The second transverse shift frame (300) comprises two second side plates (310) and a second cross bar (320) connected between the second side plates (310); the pressing roller (400) and the paper cutting assembly (500) are installed between the two second side plates (310); The first transverse moving frame (200) comprises two first side plates (210), a first transverse rod (220) connected between the first side plates (210), two second side plates (310) respectively connected to the inner sides of the two first side plates (210) in a transverse sliding manner, and the two first side plates (210) are connected to the frame (100) in a transverse sliding manner.
9. The winding guide paper cutting device according to claim 8, characterized in that: The second transverse shift driving group comprises two transverse shift cylinders (600) respectively mounted on the two first side plates (210), and the two transverse shift cylinders (600) are drivingly connected to the two second side plates (310).
10. The winding guide paper cutting device according to claim 8, characterized in that: The first transverse driving group includes a transmission shaft (700) arranged in the longitudinal direction, a rotation driving component (710) driving the transmission shaft (700) to rotate, and two gears (720) sleeved on the transmission shaft (700), and the two first side plates (210) are both provided with a rack (730) extending in the transverse direction, and the rack (730) is meshed with the gear (720).