Web printing press convenient to replace

Abstract

The utility model relates to the technical field of printing equipment, and discloses a web printing press convenient to replace, which comprises a machine body, two tension sensors are fixedly connected to the front end of the machine body, extension plates are fixedly connected to the front ends of the two tension sensors, one sides, close to each other, of the two extension plates are connected with an unwinding roller through a disassembly and assembly component, and the unwinding roller is connected with the machine body. A connecting plate is fixedly connected to the rear end of the machine body, two cleaning brushes are rotatably connected to the interior of the connecting plate, a winding roller is connected to the outer walls of the cleaning brushes through a transmission assembly, and a plurality of tension rollers are rotatably connected to the sides, close to each other, of the two tension sensors. According to the utility model, a new unwinding roller can be placed into the rotating disc mounting groove from the extension plate preassembling groove, the first motor is started to drive the rotating disc to rotate, and the new unwinding roller is rotated into the extension plate, so that the rapid replacement of the unwinding roller is realized, the cleaning brush is driven to rotate through the belt pulley and the connecting belt when the winding roller rotates, and the upper surface and the lower surface of printing paper can be comprehensively cleaned; and the cleanliness and the quality of the printed paper are ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to printing equipment technical field especially, it is a kind of web printing machine of convenient replacement. BACKGROUND

[0002] Printing industry develops rapidly at present, whether it is the massive demand of commercial printing field to various propaganda materials, packaging, or the continuous printing of books, newspapers and periodicals of publishing and printing industry, all promote printing enterprises to pursue higher production efficiency and better printing quality continuously.Web printing machine becomes the key equipment of large-scale printing operation with its continuous paper feeding and efficient printing characteristics, and occupies an important position in the whole printing industry chain.

[0003] As for unwinding unit, fixed support type design has great disadvantages in the replacement of web.When web is used up, operator has to stop completely, manually remove the used web from support, and then accurately install new web on support shaft, which seriously affects production efficiency and increases production cost, therefore, in view of the existing problems, a kind of web printing machine of convenient replacement is needed to solve the above problems. UTILITY MODEL CONTENT

[0004] In order to solve the problems existing in the prior art, the present application provides a kind of web printing machine of convenient replacement, new unwinding roller can be put into rotating disc installation groove from extension plate preloading groove, first motor is started to drive rotating disc rotation, new unwinding roller is rotated into extension plate inside, realizes the quick replacement of unwinding roller, and cleaning brush is rotated by belt pulley and connecting belt when winding roller rotates, which can clean the upper and lower surfaces of printed paper comprehensively, to ensure the cleanliness and quality of printed paper.

[0005] In order to achieve the above purpose, the utility model provides the following technical scheme:

[0006] A kind of web printing machine of convenient replacement, including body, the front end of the body is fixedly connected with two tension sensors, the front end of two tension sensors is fixedly connected with extension plate, the similar side of two extension plates is connected with unwinding roller by disassembling component, the rear end of the body is fixedly connected with connecting plate, two cleaning brushes are rotatably connected in the connecting plate, the outer wall of cleaning brush is connected with winding roller by transmission component, the similar side of two tension sensors is rotatably connected with multiple tension rollers, multiple tension rollers are staggered distributed on tension roller.

[0007] As a further improvement of the utility model, the disassembling component includes rotating disc rotatably connected on the inner wall of two extension plates, and two connecting rods are fixedly connected on the similar side of two rotating discs.

[0008] As a further improvement of the utility model, the surface of the rotating disc is provided with a mounting groove, and the unwinding roller is rotatably connected in the mounting groove.

[0009] As a further improvement of the utility model, the right outer wall of the extension plate is provided with a first motor, and the driving end of the first motor is fixedly connected to the right end of the rotating disc.

[0010] As a further improvement of the utility model, the front end of the extension plate is provided with a pre-mounting groove, and the pre-mounting groove is matched with the mounting groove.

[0011] As a further improvement of the utility model, the transmission assembly comprises gears fixedly connected to the outer walls of the two cleaning brushes, the gears are meshed with each other, the cleaning brushes at the lower part are fixedly connected with pulleys on the outer walls of the winding rollers, and the outer walls of the two pulleys are connected through a connecting belt.

[0012] As a further improvement of the utility model, the left end of the winding roller is provided with a second motor, and the driving end of the second motor is fixedly connected to the left end of the winding roller.

[0013] In summary, compared with the prior art, the present application has at least one of the following beneficial technical effects:

[0014] 1. In the utility model, when the paper on the unwinding roller is used up, the new unwinding roller can be put into the mounting groove of the rotating disc from the pre-mounting groove of the extension plate, the first motor is started to drive the rotating disc to rotate, the other rotating disc is synchronously rotated through the connecting rod, the new unwinding roller is rotated into the extension plate, and the used unwinding roller can be taken out at the pre-mounting groove, so that the unwinding roller is quickly replaced, the equipment downtime is effectively reduced, and the work efficiency is improved.

[0015] 2. In the utility model, the printing paper is ensured to have tension by passing through the tension roller, the printed paper passes through between the two cleaning brushes, the cleaning brushes are rotated by the pulleys and the connecting belt when the winding roller rotates, the two cleaning brushes are rotated together due to the meshing of the gears, the upper and lower surfaces of the printing paper are fully cleaned, and the cleanliness and quality of the printing paper are ensured. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 An axonometric view of the web-fed printing press convenient to replace is provided for the utility model;

[0017] Figure 2 An assembly disassembly component structure schematic view of the web-fed printing press convenient to replace is provided for the utility model;

[0018] Figure 3 A transmission assembly structure schematic view of the web-fed printing press convenient to replace is provided for the utility model;

[0019] Figure 4 The utility model provides a convenient replaceable structure diagram of tension roll of web printing machine.

[0020] Legend:

[0021] 1, machine body, 2, tension sensing machine, 3, extension plate, 4, rotating disc, 5, connecting rod, 6, first motor, 7, tension roll, 8, second motor, 9, unwinding roller, 10, cleaning brush, 11, gear, 12, pulley, 13, connecting belt, 14, winding roller. Specific embodiments

[0022] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments.

[0023] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed application, but only represents selected embodiments of the present application. All other embodiments obtained by a person of ordinary skill in the art without making creative efforts based on the embodiments in the present application are within the scope of protection of the present application.

[0024] It should be noted that: similar numbers and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0025] In the description of the present application, it should be noted that if the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, or is the orientation or positional relationship when the product of the application is usually placed, it is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the present application. In addition, if the terms "first", "second" and the like appear in the description of the present application, they are only used for differentiation in description, and cannot be understood as indicating or implying relative importance.

[0026] In addition, if the terms "horizontal", "vertical" and the like appear in the description of the present application, they do not mean that the component must be absolutely horizontal or vertical, but can be slightly inclined. For example, "horizontal" only means that its direction is relatively more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0027] In the description of the present application, it also needs to be explained that, unless otherwise explicitly specified and limited, if the terms "set", "install", "connect", "connect" appear, they should be understood broadly, for example, can be fixedly connected, can also be detachably connected, or integrally connected; can be mechanically connected, can also be electrically connected; can be directly connected, can also be indirectly connected through an intermediate medium, can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0028] Embodiment 1:

[0029] As Figure 1 , Figure 2 and Figure 4 indicated, a convenient replacement of the web printing machine, including the body 1, the front end of the body 1 is fixedly connected with two tension sensors 2, the front end of the two tension sensors 2 is fixedly connected with the extension plate 3, the inner wall of the two extension plates 3 is rotatably connected with the rotating disc 4, the side of the two rotating discs 4 is fixedly connected with two connecting rods 5, the surface of the rotating disc 4 is provided with a mounting groove, the unwinding roller 9 is rotatably connected in the inside of the mounting groove, the right outer wall of the extension plate 3 is provided with the first motor 6, the driving end of the first motor 6 is fixedly connected on the right end of the rotating disc 4, the front end of the extension plate 3 is provided with a preloading groove, the preloading groove is matched with the mounting groove, the rear end of the body 1 is fixedly connected with the connecting plate, the inside of the connecting plate is rotatably connected with two cleaning brushes 10, the outer wall of the cleaning brush 10 is connected with the winding roller 14 through the transmission assembly, the side of the two tension sensors 2 is rotatably connected with a plurality of tension rollers 7, the plurality of tension rollers 7 are staggered distributed on the tension roller 7;

[0030] Specifically, the printing paper is pulled out from the unwinding roller 9, passes through the tension roller 7 in sequence, the tension roller 7 plays a key role, which can guarantee that the paper always maintains proper tension during printing, lays a foundation for the accuracy and stability of subsequent printing, and then the paper passes through the body 1, at this time the printing mechanism in the body 1 starts to work and performs printing operation on the paper, and the required graphic information is given to the paper, when the printing paper on the unwinding roller 9 is exhausted, the equipment starts the roll changing process, and a new unwinding roller 9 is placed in the preloading groove on the extension plate 3, and then it enters the mounting groove on the rotating disc 4, the first motor 6 is started, the first motor 6 drives the rotating disc 4 connected thereto to rotate in the extension plate 3, in this process, the connecting rod 5 plays a linkage role to drive the other rotating disc 4 to rotate synchronously, when the rotating disc 4 rotates, the new unwinding roller 9 is rotated into the extension plate 3, when the printing paper on the unwinding roller 9 is unwound, the unwinding roller 9 is in a stable rotating state in the mounting groove of the rotating disc 4, at the same time, the used unwinding roller 9 is rotated from the inside to the preloading groove on the extension plate 3, which facilitates the operator to smoothly take the used unwinding roller 9 from the rotating disc 4, efficiently realizes the quick replacement of the unwinding roller 9, greatly reduces the downtime of the equipment caused by roll changing, and improves the overall work efficiency.

[0031] Embodiment 2:

[0032] As one of the optimized structure designs of embodiment 1, as shown in Figure 3 The transmission assembly includes gears 11 fixedly connected to the outer walls of the two cleaning brushes 10, the gears 11 are meshed with each other, the outer walls of the two cleaning brushes 10 are fixedly connected with belt pulleys 12, the outer walls of the two belt pulleys 12 are connected through a connecting belt 13, the left end of the winding roller 14 is provided with a second motor 8, and the driving end of the second motor 8 is fixedly connected to the left end of the winding roller 14.

[0033] Specifically, when the second motor 8 is started, the second motor 8 drives the winding roller 14 to rotate, thereby performing winding operation on the printed paper, in the rotating process of the winding roller 14, the belt pulley 12 on the winding roller 14 transmits power to the belt pulley 12 on the cleaning brush 10 through the connecting belt 13, so as to drive the cleaning brush 10 to rotate, at the same time, the gears 11 on the cleaning brush 10 interact with the other meshed gears 11, so that the two cleaning brushes 10 rotate synchronously and reversely, thereby cleaning the upper and lower surfaces of the printing paper in all directions, effectively removing impurities, ink particles and the like remaining on the surface of the paper, and improving the cleanliness of the paper.

[0034] Working principle: first, the printing paper on the unwinding roller 9 is pulled out from the tension roller 7 in turn, so as to ensure the proper tension of the printing paper when printing, then the printing paper is passed through the machine body 1, so that the printing mechanism inside it prints it, the printed paper is passed between the two cleaning brushes 10, and finally fixed to the winding roller 14, the second motor 8 is started to drive the winding roller 14 to rotate, so as to wind the printed paper, when the winding roller 14 rotates, the pulley 12 on it will drive the pulley 12 on the cleaning brush 10 to rotate, so as to drive the cleaning brush 10 to rotate, when the cleaning brush 10 rotates, the gear 11 on it will drive the other gear 11 engaged with it to rotate, so that the two cleaning brushes 10 rotate together, so as to clean the upper and lower surfaces of the printing paper comprehensively, when the printing paper on the unwinding roller 9 is used up, the new unwinding roller 9 can be put into the preloading slot on the extension plate 3 and then into the mounting slot on the rotating disc 4, then the first motor 6 is started to make the rotating disc 4 connected with it rotate in the extension plate 3, at the same time, the connecting rod 5 can drive the other rotating disc 4 to rotate synchronously, when the rotating disc 4 rotates, the new unwinding roller 9 is rotated into the inside of the extension plate 3, at the same time, the used unwinding roller 9 is rotated from the inside to the preloading slot on the extension plate 3, so as to take out the used unwinding roller 9 from the rotating disc 4, thereby realizing the quick replacement of the unwinding roller 9, reducing the downtime.

[0035] Finally, it should be pointed out that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the foregoing detailed description of the present application is made with reference to the foregoing embodiments, for those skilled in the art, it still can modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application, should be included in the protection scope of the present application.

Claims

1. A web printing machine with easy changeover, comprising a machine body (1), characterized in that: The machine body (1) is fixedly connected with two tension sensors (2) at the front end, both of which are fixedly connected with extension plates (3) at the front end, and both of the extension plates (3) are connected with unwinding rollers (9) through dismounting assemblies on one side, the rear end of the machine body (1) is fixedly connected with a connecting plate, the connecting plate is rotatably connected with two cleaning brushes (10) inside, the outer wall of the cleaning brush (10) is connected with a winding roller (14) through a transmission assembly, both sides of the tension sensor (2) are rotatably connected with a plurality of tension rollers (7), and the plurality of tension rollers (7) are distributed on the tension roller (7) in a staggered manner.

2. A convenient changeover web printing machine according to claim 1, characterized in that: The dismounting assembly comprises rotating discs (4) rotatably connected on the inner walls of the two extension plates (3), and both sides of the rotating disc (4) are fixedly connected with two connecting rods (5).

3. A convenient changeover web printing machine according to claim 2, characterized in that: The rotating disc (4) is provided with a mounting groove on the surface, and the unwinding roller (9) is rotatably connected inside the mounting groove.

4. A convenient changeover web printing machine according to claim 2, characterized in that: The right outer wall of the extension plate (3) is provided with a first motor (6), and the driving end of the first motor (6) is fixedly connected to the right end of the rotating disc (4).

5. A convenient changeover web printing machine according to claim 2, characterized in that: The front end of the extension plate (3) is provided with a preloading groove, and the preloading groove is matched with the mounting groove.

6. A convenient changeover web printing machine according to claim 1, characterized in that: The transmission assembly comprises gears (11) fixedly connected on the outer walls of both cleaning brushes (10), both gears (11) are meshed with each other, and the outer walls of the lower cleaning brush (10) and the winding roller (14) are fixedly connected with belt pulleys (12), and the outer walls of both belt pulleys (12) are connected through connecting belts (13).

7. A convenient changeover web printing machine according to claim 6, characterized in that: The left end of the winding roller (14) is provided with a second motor (8), and the driving end of the second motor (8) is fixedly connected to the left end of the winding roller (14).

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