CN203474022U - Dual-function rewinder of absorbing type winding mechanism - Google Patents

Abstract

Disclosed is a dual-function rewinder of an absorbing type winding mechanism. A rewinding upper roller is divided into a fixed inner cylinder and a rotary outer cylinder, the outer cylinder is provided with a plurality of groups of air suction ports, the inner cylinder is provided at least with two air ducts, the length direction of the air ducts is parallel with the axis of the cylinder body, the two air ducts are connected with a vacuum extractor, the central angle opened by the notch of one air duct is placed within the corner range of the rewinding upper roller in the winding process of coreless paper rolls, and the central angle opened by the notch of the other air duct is placed within the corner range of the rewinding upper roller in the winding process of cored paper rolls. The dual-function rewinder of the absorbing type winding mechanism has the advantages that on one hand, the winding process of the coreless paper rolls can be achieved, and the winding quality of the cored paper rolls can be improved; on the other hand, due to the fact that the two air ducts of the inner cylinder are isolated, negative pressure generated by vacuum extractor can all be better concentrated in a needed area, power waste of the negative pressure is reduced, and the energy-saving effect is achieved.

Description

The rewinding machine with difunctional air suction type roll set mechanism

Technical field

The utility model relates to the rewinding machine that paper is rolled into paper roll.

Background technology

In producing the rewinding machine of the paper product such as toilet roll, there is a class to adopt the rewinding machine of air suction type roll set mechanism, this class rewinding machine is evenly equipped with the air suctiton inlet of absorption paper on the face of cylinder of its rewinding top roll, in roll set process, the adsorption to paper that utilizes these air suctiton inlets to produce when a certain specific angle range through rewinding top roll realizes roll set.Yet, in existing this class rewinding machine, rewinding top roll only has one for controlling the angle range of air suctiton inlet negative pressure state, air suctiton inlet is only applicable to the roll set process of coreless rolls (paper roll that there is no core pipe namely) in this angle range to the adsorption of paper, to there being the roll set process of core paper volume like water off a duck's back, even harmful.In general, the air suction type roll set mechanism that existing rewinding machine adopts only has the simple function of the coreless rolls of being applicable to.

Utility model content

The utility model object is to adopt the rewinding machine of air suction type roll set mechanism to improve for above-mentioned this class, a kind of rewinding machine with difunctional air suction type roll set mechanism is provided, this rewinding machine both can be used for realizing the roll set process of coreless rolls, was applicable to again the roll set process of core paper volume.

The utility model is achieved in that the rewinding machine with difunctional air suction type roll set mechanism, comprise the rewinding top roll and the rewinding lower roll that are parallel to each other, rewinding top roll is divided into urceolus two parts of fixing inner core and rotation, the barrel of urceolus is provided with many group air suctiton inlets, many group air suctiton inlets distribute along the circumferencial direction of rewinding top roll, inner core at least has two air drains that length direction is parallel with roll body axis, be respectively the first air drain and the second air drain, article two, air drain is isolated mutually, article two, air drain is connected with vaccum-pumping equipment, article two, the notch of air drain is opened in the external cylindrical surface of inner core, within the central angle that the notch of the first air drain opens is positioned at the angle range of coreless paper-roll winding process of rewinding top roll, the central angle that the notch of the second air drain opens be positioned at rewinding top roll have core paper to roll to lick the angle range of journey within, the gap of inner core and urceolus is enough little, to such an extent as to air suctiton inlet on urceolus barrel only turns to the position corresponding with the notch of two air drains, could be communicated with corresponding air drain and form the required negative pressure of absorption paper.

The utility model has the advantages that, not only can realize the roll set process of coreless rolls, and can prevent core paper twist in roll set process because of paper too much, separated with the face of cylinder of rewinding top roll prematurely, and cause the paper being initially wrapped on core pipe to produce gauffer, improve the roll set quality that has core paper volume.On the other hand, because two air drains of inner core are isolated mutually, the negative pressure that is therefore conducive to vaccum-pumping equipment to produce all concentrates on needed region, reduces the waste of negative pressure power, tool energy-saving effect.

Accompanying drawing explanation

Fig. 1 to Fig. 2 is the roll set process schematic diagram that the utility model is applied to coreless rolls;

Fig. 3 is the another kind of topology example of air suctiton inlet on the roll body surface of rewinding top roll;

Fig. 4 carries out improved embodiment to rewinding lower roll on Fig. 1 basis;

Fig. 5 to Fig. 6 is the roll set process schematic diagram that the utility model is applied to core paper volume;

Fig. 7 to Figure 10 is two air drains of rewinding top roll and the different connection mode schematic diagrams of vaccum-pumping equipment.

The specific embodiment

Embodiment mono-

Referring to Fig. 1, the state of the rewinding machine shown in figure in production coreless rolls.This rewinding machine comprises rewinding top roll 1 and the rewinding lower roll 2 being parallel to each other.Rewinding top roll 1 is divided into urceolus 1b two parts of fixing inner core 1a and rotation.Inner core 1a is fixed in frame.The barrel of urceolus 1b is provided with many group air suctiton inlets 3, organizes air suctiton inlet 3 along the circumferencial direction distribution of rewinding top roll 1 more, and each group air suctiton inlet 3 is arranged and formed along the length direction of roll body by a plurality of air suctiton inlets.Inner core 1a has two air drains that length direction is parallel with roll body axis, is respectively the first air drain 4 and the second air drain 5.Article two, the cross-sectional plane almost fan of air drain 4,5.Article two, air drain 4,5 is isolated mutually, and by air valve, is connected (air outlet valve not shown in the figures and vaccum-pumping equipment) with vaccum-pumping equipment respectively.Article two, the notch of air drain 4,5 is opened in the external cylindrical surface of inner core 1a.The central angle alpha that the notch of the first air drain 4 opens, within being positioned at the angle range of coreless paper-roll winding process of rewinding top roll 1, the central angle that the notch β of the second air drain 5 opens be positioned at rewinding top roll 1 have core paper to roll to lick the angle range of journey within.The gap of inner core 1a and urceolus 1b is enough little, makes the air suctiton inlet 3 on urceolus barrel only turn to the position corresponding with the notch of two air drains 4,5, could be communicated with corresponding air drain and form the required negative pressure of absorption paper.

It is such that the structure of air suctiton inlet 3 also can be made Fig. 3.In Fig. 3, the air suctiton inlet 3 on the urceolus barrel of rewinding top roll 1 is slit shape, and a slit just forms one group of air suctiton inlet, but not forms one group by a plurality of air suctiton inlets, but the viewgraph of cross-section of this rewinding top roll 1 is still identical with Fig. 1.

The principle that realizes coreless paper-roll winding process embodiment illustrated in fig. 1 is, in realizing the roll set process of coreless rolls, close the air valve being connected with the second air drain 5, the second air drain 5 is died, simultaneously, open the air valve being connected with the first air drain 4, the first air drain 4 is communicated with vaccum-pumping equipment, so, air suctiton inlet 3 on urceolus barrel turns to the position corresponding with the notch of the first air drain 4, while namely turning within central angle alpha, air suctiton inlet 3 is communicated with the required negative pressure of formation absorption paper with the first air drain 4, so, the paper roll afterbody paper that completed by a front rewinding disconnects and the paper termination 6 that forms, in will the roll gap M between rewinding top roll 1 and rewinding lower roll 2, form curling, as shown in Figure 1, along with being rotated further of rewinding top roll 1 and rewinding lower roll 2, curling paper termination 6 will form a new paper roll 7, as shown in Figure 2, so far complete the roll set process of coreless rolls.Along with the continuation of rewinding process, the new paper roll 7 forming constantly increases, and finally by rewinding top roll 1, rewinding lower roll 2 and air roll 8, clips together paper roll and rotates, until complete rewinding.

After completing the roll set process of coreless rolls, that is under state shown in Fig. 2, can open the air valve of the second air drain 5, the second air drain 5 is communicated with vaccum-pumping equipment, with this, strengthen the traction force of 1 pair of paper 9 of rewinding top roll.

As a kind of version of the present embodiment, can as shown in Figure 4, rewinding lower roll 2 be made to the structure similar to rewinding top roll 1.Rewinding lower roll 2 in Fig. 4 is divided into urceolus 2b two parts of fixing inner core 2a and rotation.The barrel of urceolus 2b is provided with many group air suctiton inlets 13, and the structure and layout of air suctiton inlet 13 are identical with the air suctiton inlet 3 of rewinding top roll.Inner core 2a has an air drain 14 that length direction is parallel with roll body axis, and the notch of air drain 14 is opened in the external cylindrical surface of inner core 2a, and the central angle that the notch of air drain 14 opens is θ.In realizing the process of paper roll roll set, air drain 14 is communicated with vaccum-pumping equipment, air suctiton inlet 13 on urceolus barrel turns to the position corresponding with the notch of air drain 14, while namely turning within central angle θ, air suctiton inlet 13 is communicated with formation negative pressure with air drain 14, can make thus the easier roll set in paper termination 6.

Embodiment bis-

Referring to Fig. 5, the rewinding machine shown in Fig. 5 is in producing the state that has core paper volume.In fact, rewinding machine shown in Fig. 5 and Fig. 1 is same equipment, in Fig. 5 and Fig. 1, identical numbering represents identical structure, only state shown in Fig. 1 is for the production of coreless rolls, rewinding top roll 1 in Fig. 1 and the roll gap M between rewinding lower roll 2 need be adjusted to and be no more than 10 millimeters, and state shown in Fig. 5 is for the production of there being core paper volume, rewinding top roll 1 in Fig. 5 and the roll gap between rewinding lower roll 2 should be adjusted to and can pass through a core pipe 10, and a curved surface 11 has been joined in increasing, a core tube passage 12 that enters roll gap between rewinding top roll 1 and rewinding lower roll 2 in order to guiding core pipe 10 of the common formation in the face of cylinder of curved surface 11 and rewinding top roll 1.

Realization embodiment illustrated in fig. 5 has core paper to roll to lick the principle of journey to be, in realization, have in the roll set process of core paper volume, close the air valve being connected with the first air drain 4, the first air drain 4 is died, simultaneously, open the air valve being connected with the second air drain 5, the second air drain 5 is communicated with vaccum-pumping equipment, so, air suctiton inlet 3 on urceolus barrel turns to the position corresponding with the notch of the second air drain 5, while namely turning within central angle β, air suctiton inlet 3 is communicated with the required negative pressure of formation absorption paper with the second air drain 5, so, when core pipe 10 passes through core tube passage 12, as shown in Figure 5, the paper termination 6 that can prevent core pipe 10 the place aheads is sagging too much, and the paper that prevents core pipe 10 rears is separated with the face of cylinder of rewinding top roll 1 prematurely, thereby the paper that can avoid being initially wrapped on core pipe 10 produces gauffer, improve the roll set quality that has core paper volume.When core pipe 10 enters into the roll gap jointly being surrounded by rewinding top roll 1, rewinding lower roll 2 and air roll 8 as shown in Figure 6, paper has been wrapped on core pipe 10, completes the roll set process of core paper volume.

After completing the roll set process of core paper volume, that is under state shown in Fig. 6, can keep the second air drain 5 to be communicated with vaccum-pumping equipment, with this, strengthen the traction force of 1 pair of paper 9 of rewinding top roll.

As a kind of version of the present embodiment, the first air drain 4 can be disassembled is two or more strip air drains, and the central angle that the notch of all sub-air drains opens is all positioned at the first corner α.During work, by the first air drain 4, disassemble many strips air drain of forming simultaneously or be close to and be side by side communicated with vaccum-pumping equipment or disconnect.In like manner, also the second air drain 5 can be disassembled is two or more strip air drains, and the central angle that the notch of all sub-air drains opens is all positioned at the second corner β.During work, by the second air drain 5, disassemble many strips air drain of forming simultaneously or be close to and be side by side communicated with vaccum-pumping equipment or disconnect.

The rewinding lower roll 2 of the present embodiment also can adopt the structure the same with rewinding lower roll 2 in Fig. 4, so that the easier roll set in paper termination 6.

In the various embodiments described above, the connection mode of the first air drain 4 and the second air drain 5 and vaccum-pumping equipment has multiple, and Fig. 7 to Figure 10 has enumerated several different connection modes.In Fig. 7, the first air drain 4 and the second air drain 5 are connected to commutator 15, and commutator 15 is connected with vaccum-pumping equipment 16.Fig. 8, on the basis of Fig. 7, has increased electromagnetic valve 17 between commutator 15 and vaccum-pumping equipment 16.In Fig. 9, the first air drain 4 is connected with vaccum-pumping equipment 16 by electromagnetic valve 18,19 respectively with the second air drain 5.Figure 10, on the basis of Fig. 9, has increased electromagnetic valve 20 between vaccum-pumping equipment 16 and two electromagnetic valves 18,19.

Claims (1)

1. the rewinding machine with difunctional air suction type roll set mechanism, comprise the rewinding top roll (1) and the rewinding lower roll (2) that are parallel to each other, rewinding top roll (1) is divided into urceolus (1b) two parts of fixing inner core (1a) and rotation, the barrel of urceolus (1b) is provided with many group air suctiton inlets (3), many group air suctiton inlets (3) distribute along the circumferencial direction of rewinding top roll (1), it is characterized in that: inner core (1a) at least has two air drains that length direction is parallel with roll body axis, be respectively the first air drain (4) and the second air drain (5), article two, air drain is isolated mutually, article two, air drain (4, 5) be connected with vaccum-pumping equipment, article two, the notch of air drain is opened in the external cylindrical surface of inner core (1a), within the central angle (α) that the notch of the first air drain (4) opens is positioned at the angle range of coreless paper-roll winding process of rewinding top roll (1), the central angle (β) that the notch of the second air drain (5) opens be positioned at rewinding top roll (1) have core paper to roll to lick the angle range of journey within, inner core (1a) is enough little with the gap of urceolus (1b), to such an extent as to air suctiton inlet (3) on outer tube wall only turns to and two air drains (4, 5) the corresponding position of notch, could be communicated with corresponding air drain and form the required negative pressure of absorption paper.

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