A kind of continuous unreeling machine
The present invention relates to a kind of feedway that unreels, belong to the bag mechanical field.
Patent " refinforced cement packaging bag of glass zero twisted yarn and Fabricating machinery thereof " (patent No. 87215557), the unit paper-feeding mechanism of producing with this patent has two unreeling machines, and each is made up of three deflector rolls putting the tensioning paper effect that plays on mandrel, the support on two support rollers, the support roller each unreeling machine by two on support, the support.Two unreeling machines respectively unreel for the outer paper of packaging bag and internal layer paper; often occur a unreeling machine in the practical operation and put paper; another unreeling machine has not but been put paper; need whole compressor emergency shutdown this moment; change the paper roll of having put; because paper roll lifting; joint is bonding; man-hours such as correction; delay time; and this moment not the preceding volume end paper of the paper of change of lap and positive change of lap entered the glass zero twisted yarn that following operation just sticked glue and twined; it is of a specified duration to stall for time; overlong time on the glue adhere papers can make paper strength influenced, and therefore this unreeling machine is not only wasted man-hour but also influenced product design.
Summary of the invention
The technical problem to be solved in the present invention is the defective that overcomes existing unreeling machine, and a kind of unreeling machine of continuous working is provided.
In order to solve the problems of the technologies described above, the invention provides following technical scheme:
A kind of continuous unreeling machine, form by support, support roller, deflector roll, two stations are set on the support, every station is all formed by one group of support roller is secondary, respectively place a mandrel on the support roller, kink a cam and handle respectively on terminal deflector roll two head end axles, protruding commentaries on classics and handle relative fixed, there is a hold-down roller terminal deflector roll top, cam heads on two head end axles of hold-down roller, have one of an extension spring to hang on this axle head, the other end hangs on the cam face, and compresses roller end axle kink in the vertical direction elongated slot of support.
Principle of work is, two stations are set on single unreeling machine support, every station is all formed by one group of support roller is secondary, respectively places a mandrel on the support roller, and kink a cam and handle respectively on terminal deflector roll two head end axles, cam and handle relative fixed, terminal deflector roll top has a hold-down roller, cam to head on two head end axles of hold-down roller, has one of an extension spring to hang on this axle head, the other end hangs on the cam face, and compresses roller end axle kink in the vertical direction elongated slot of support.
Do not shut down when the invention reside in change of lap, and the tension force requirement can keep the last paper change of lap of volume the time, save man-hour, guarantee product design.
Description of drawings
Accompanying drawing is used to provide further understanding of the present invention, and constitutes the part of specification sheets, is used from explanation the present invention with embodiments of the invention one, is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is continuous unreeling machine structural representation;
1 is left support roller pair among the figure, and 2 is left mandrel, and 3 for paper roll transmits paper, and 4 is right support roller pair, and 5 is hold-down roller, and 6 for compressing the roller end axle, and 7 is cam, and B is extension spring, and 9 is handle, and 10 is terminal deflector roll end axle, and 11 is the terminal deflector roll, and 12 is the top deflector roll, and 13 are the transition deflector roll.
The specific embodiment
Below in conjunction with accompanying drawing the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein only is used for description and interpretation the present invention, and be not used in qualification the present invention.
As shown in Figure 1, unit of the present invention has four of two unreeling machines to unreel station, two secondary support rollers are arranged on each unreeling machine support, every secondary support roller has two pairs of support rollers to place the mandrel two ends, two left and right sides mandrels respectively are placed on the two secondary left and right sides support roller pairs and become parallel shape, also are provided with three deflector rolls on the support: top deflector roll, transition deflector roll, terminal deflector roll.Kink a cam and a handle on terminal deflector roll two head end axles, cam and handle relative fixed, there is a hold-down roller terminal deflector roll top, cam heads on two head end axles of hold-down roller, there is one of an extension spring to hang on this axle head, the other end hangs on the cam face, and compress roller end axle kink in the vertical direction elongated slot of support, compressing the roller end axle can move up and down in the elongated slot of support two, when cam major diameter end was gone up the hold-down roller top, extension spring was loosened, and hold-down roller separates with the terminal deflector roll, when cam after angle orientation of rotation under the handle effect, hold-down roller is by conducting oneself with dignity and tension spring tension is pressing the terminal deflector roll.
During unit operation; before the paper roll on one of them station of unreeling machine has been put soon; be placed on the support roller of two after the mandrel of another station on the support is inserted in new paper roll; then; turning handle; put down hold-down roller, deflector roll normally carries out following operation to the paper tension that leads between the mechanism to make paper clamp keep eventually between hold-down roller and terminal deflector roll.Then the paper roll that will be about to put is totally released, with the first adhesion of the paper of paper end and another paper roll, because the effect of hold-down roller has kept the preceding paper of terminal deflector roll not influence the normal operation continuously of unit in the relaxed state adhesion.The paper bonding along with the front paper sheet delivery enters tensioning state by relaxed state, just drives the new paper roll of second volume and enters continuous working.
It should be noted that at last: the above only is the preferred embodiments of the present invention, be not limited to the present invention, although the present invention is had been described in detail with reference to previous embodiment, for a person skilled in the art, it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.