CN201473086U - Core barrel paper pressing type paper breaking mechanism of rewinding machine - Google Patents

Abstract

The utility model relates to a core barrel paper pressing type paper breaking mechanism of rewinding machine, which comprises a paper pressing roller and two driving rollers, wherein the paper pressing roller and two driving rollers share the identical external peripheral velocity and rotate through clamping the paper scroll together so as to complete the rewinding process; during the rewinding, the distances between the paper pressing roller and two driving rollers is changed as the diameter of the paper scroll which is being rewound is changed, and the distance between two driving rollers remains constant. The paper breaking mechanism is characterized in that interval between the external cylindrical surfaces of two driving rollers is smaller than the outer diameter of the core barrel of the paper scroll, and the entrance for the core barrel of the paper scroll into the space is formed between the paper pressing roller and two driving rollers. The utility model utilizes the pressure produced by two driving rollers upon the core barrel to realize paper breakage. Compared with the prior art, as distance between the core barrel and the paper scroll which is being rewound is greatly shortened, and the distance between the paper head part which is formed after the paper is pulled to be separate and the core barrel is bound to be greatly shortened, so that the possibility that the paper head part wrinkles during the rewinding process is low.

Description

The core pipe platen formula of the rewinding machine paper roll set mechanism of breaking

Technical field

The utility model relates to the rewinding machine of the paper roll of producing the belt carcass pipe, the paper roll set mechanism of breaking of the core pipe platen formula in the particularly this rewinding machine.

Background technology

Produce the rewinding machine of the paper roll of belt carcass pipe, for example produce the rewinding machine of the toilet roll of belt carcass pipe, the disconnected paper roll set mechanism of the core pipe platen formula that is adopted is that a kind of core pipe of paper roll that utilizes is broken the paper of paper roll afterbody, and make after breaking paper immediately on the core pipe to finish the disconnected paper roll set mechanism of roll set.In the prior art, the disconnected paper roll set mechanism of described core pipe platen formula as shown in Figure 1, have one by the stay bearing plate 2 of the face of cylinder of driven roller 1 and a bending mutually near and the mistake paper passage 3 that forms, its basic functional principle is: after core pipe 4 was admitted to paper passage 3, core pipe 4 driven rolls 1 in crossing paper passage 3 is rubbed rolling, play the effect of the afterbody paper of pushing paper roll 5, meanwhile, accelerate the rotating speed (rotating speed of another root driven roller 7 that perhaps slows down) of air roll 6, just make the paper roll 5 in rewinding roll towards the direction that breaks away from air roll 6 to the right, cause the afterbody paper of paper roll 5 between core pipe 4 and paper roll 5, to tighten fracture, so far finish disconnected paper; Behind the disconnected paper,, be wrapped in immediately on the core pipe 4, form new paper roll, that is finish roll set by the head of the paper after breaking along with core pipe 4 continues to roll in crossing paper passage 3; New paper roll driven rolls 1 in crossing paper passage 3 is rubbed and is rolled between air roll 6 and two driven rollers 1,7, clips new paper roll rotation together by air roll 6 and two driven rollers 1,7, begins the rewinding process of a new round thus.From above-mentioned principle of work as seen, core pipe 4 must be in crossing paper passage 3 rolling one segment distance just can enter between air roll 6 and two driven rollers 1,7, therefore core pipe 4 is with just the distance certainty between the paper roll 5 of rewinding is far away, the paper head that forms after paper is broken also will be far away apart from core pipe 4, thus, in the paper head began to be wound in roll set process on the core pipe 4, the paper head was wrinkling easily, has influence on the rewinding quality.

The utility model content

The purpose of this utility model be for rewinding machine provide a kind of in the roll set process paper head be not easy the disconnected paper roll set mechanism of wrinkling core pipe platen formula.

The utility model is achieved in that the disconnected paper roll set mechanism of the core pipe platen formula of rewinding machine comprises air roll and two driven rollers, the excircle linear velocity of air roll and two driven rollers is identical and clip the paper roll rotation together to finish the rewinding process, in the rewinding process, distance between air roll and two driven rollers is along with just in the vary in diameter of the paper roll of rewinding and change, distance between two driven rollers remains unchanged, especially, spacing between the external cylindrical surface of described two driven rollers is less than the external diameter of the core pipe of paper roll, and this spacing core pipe of constituting paper roll enters into the inlet between air roll and two driven rollers.Principle of work of the present utility model is: at first the core pipe of paper roll is sent between distance two driven rollers that remain unchanged, because the spacing between the external cylindrical surface of these two driven rollers is less than the external diameter of core pipe, so the core pipe is subjected to the extruding of these two driven rollers, the core pipe plays the effect of the afterbody paper of pushing paper roll, in this simultaneously, accelerate the rotating speed of air roll, make and to be clipped in just rolling towards the direction that breaks away from air roll between air roll and two driven rollers at the paper roll of rewinding, so the afterbody paper of paper roll is tightened fracture, finishes disconnected paper; Behind the disconnected paper, rotation along with two driven rollers, the core pipe rolls between air roll and two driven rollers, head by the paper after breaking is wrapped on the core pipe immediately, form new paper roll, that is finish roll set, so far, the paper roll that air roll and two driven rollers clip new formation together rotates, the rewinding process of a beginning new round.From above-mentioned principle of work as seen, the extruding that the utility model utilizes two driven rollers that the core pipe is formed realizes disconnected paper, compared with prior art, the core pipe and just the distance between the paper roll of rewinding shorten greatly, paper is broken the also inevitable shortening greatly of distance of the paper head distance core pipe of back formation, and therefore the paper head is not easy wrinkling in the roll set process.

The utility model has the advantages that the rewinding quality that has improved paper roll, and compare that saved the stay bearing plate that was used to form the paper passage, structure is simpler with prior art shown in Figure 1.

Description of drawings

Fig. 1 is the structural representation of the disconnected paper roll set mechanism of core pipe platen formula in the existing rewinding machine;

Fig. 2 is a structural representation of the present utility model.

The specific embodiment

As shown in Figure 2, the disconnected paper roll set mechanism of the core pipe platen formula of rewinding machine comprises air roll 6 and two driven rollers 1,7.The excircle linear velocity of air roll 6 and two driven rollers 1,7 is identical and clip paper roll 5 rotations together to finish the rewinding process.In the rewinding process, in the vary in diameter of the paper roll 5 of rewinding and change, the spacing between two driven rollers 1,7 remains unchanged the distance between air roll 6 and two driven rollers 1,7 along with just.Characteristics of the present utility model are, the spacing L between the external cylindrical surface of two driven rollers 1,7 is less than the external diameter of the core pipe 4 of paper roll, and core pipe 4 is from rolling between two driven rollers 1,7 between air roll 6 and two driven rollers 1,7.Disconnected paper principle of the present utility model is such: at first by mechanism's (not shown) of the conveying core pipe on the rewinding machine core pipe 4 of paper roll is sent to two driven rollers 1, between 7, because two driven rollers 1, spacing L between 7 the external cylindrical surface is less than the external diameter of core pipe 4, so core pipe 4 is subjected to two driven rollers 1,7 extruding, in the moment that core pipe 4 just is extruded, accelerate the rotating speed of air roll 6, make and be clipped in air roll 6 and two driven rollers 1, just rolling towards the direction that breaks away from air roll to the right at the paper roll 5 of rewinding between 7 is so the afterbody paper of paper roll 5 is tightened fracture between core pipe 4 and paper roll 5; Behind the disconnected paper, paper roll 5 rolls out to the right, and 4 rotations along with two driven rollers 1,7 of core pipe roll between air roll 6 and two driven rollers 1,7, and paper is broken the paper head that the back forms and is wrapped in immediately on the core pipe 4, forms new paper roll; Afterwards, the paper roll that air roll 6 and two driven rollers 1,7 clip new formation together rotates, the rewinding process of a beginning new round.Comparison diagram 2 and Fig. 1 are as seen, the extruding that the utility model directly utilizes two driven rollers that the core pipe is formed realizes disconnected paper, compare with prior art shown in Figure 1, core pipe 4 and just the distance between the paper roll 5 of rewinding shorten greatly, paper is broken the also inevitable shortening greatly of distance of the paper head distance core pipe 4 of back formation, and therefore the paper head is not easy wrinkling in the roll set process.

In order to ensure being wrapped in reliably on the core pipe by the head of the paper after breaking, generally should on core pipe 4, apply glue in advance, if but resemble the airduct 8 that above paper roll, is provided with Fig. 2 towards canyon, then can rely on wind-force to be blowed to core pipe 4, so just need not on the core pipe, to apply glue in advance by the head of the paper after breaking.

Claims (1)

1. the disconnected paper roll set mechanism of the core pipe platen formula of rewinding machine, comprise air roll and two driven rollers, the excircle linear velocity of air roll and two driven rollers is identical and clip the paper roll rotation together to finish the rewinding process, in the rewinding process, distance between air roll and two driven rollers is along with just in the vary in diameter of the paper roll of rewinding and change, distance between two driven rollers remains unchanged, it is characterized in that: the spacing between the external cylindrical surface of described two driven rollers is less than the external diameter of the core pipe of paper roll, and this spacing core pipe of constituting paper roll enters into the inlet between air roll and two driven rollers.

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