CN2470103Y

CN2470103Y - Intermittent sealing, uniform-speed take-up plastic-film bag-making machine

Info

Publication number: CN2470103Y
Application number: CN 01209697
Authority: CN
Inventors: 何荣德
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-04-04
Filing date: 2001-04-04
Publication date: 2002-01-09
Anticipated expiration: 2011-04-04

Abstract

The utility model relates to a batch-sealing and uniform-rolling plastic film bag-making machine. Two eccentric wheels (4), (5) are fixed on a driving shaft (15); the eccentric wheel (4) is connected with and fixed on a sealing knife of a sealing machine (7) through a connecting device (6); the eccentric wheel (5) is connected with and fixed on a rocker arm (9) through a connecting device (8). With the bag-making machine, the film can enter into the machine in even pace, intermittently pause after being heat-sealed by a heat-sealing machine, then return to the uniform synchronizing operation when entering the machine in even pace to be collected and rolled; therefore, the utility model can adapt to the bag making of the thick and thin plastic film, achieve the automation of the above-mentioned process, improve work efficiency, reduce labor intensity and reduce costs.

Description

Batch (-type) seals, the plastic film bag making machine of rolling at the uniform velocity

The utility model relates to plastic film bag making machine, particularly can adapt to the Bag Making Machine of thick, thin plastic sheeting.

At present, will be divided into two classes on the film seal machine that plastics bag industry is generally used: a class is the envelope cutter; Another kind of is drum-type heat-sealing winder.Though the envelope cutter can seal thick film, but a front cover bag is instant with one of cutter cutting spread, speed of production is slow, and to extra-thin film or seal the long film of specification and just be difficult to cut in exhibition, or the phenomenon such as not neat of blowing out is cut in exhibition, need simultaneously often to whet a knife and make troubles to production, though drum-type heat-sealing winder speed of production is fast, but the heating wire (rod) that is contained on the cylinder does not stop can't to stop in wink when rotation seals with cylinder, it is not firm that thick film is sealed envelope, only adapt to the heat-sealing of thin bag, above-mentioned two class machines all have weak point, are dissatisfactory.

The purpose of this utility model provides that a kind of batch (-type) seals, the plastic film bag making machine of rolling at the uniform velocity, that this Bag Making Machine can adapt to is thick, the heat-sealing of thin plastic sheeting, with film from the uniform velocity going up machine, stop to seal the run-in synchronism that recovers at the uniform velocity rolling again wink, realize the automation of this operation, the bag of rolling alignment cutting is increased work efficiency, reduce labour intensity, reduce cost.

Technical solution of the present utility model is the transmission system at existing plastic film bag making machine, electric control system, on the basis of prset counter system, the utility model particularly is fixed with two eccentric wheels on driving shaft, eccentric wheel is connected to a fixed by the envelope cutter of jockey and sealing machine, and another eccentric wheel is connected to a fixed by another jockey and rocking arm.

The above transmission system comprises and contains diameter identical and synchronously at the uniform velocity active one roller of running and initiatively two rollers.

Active one roller of the present utility model becomes the multiple relation with the ratio of the circumference of rolling film.

The jockey that the utility model is connected with the envelope cutter of sealing machine is that the rotation of driving shaft is changed transmission is the more piece connecting rod that seals the upper and lower reciprocating action of cutter.

Batch (-type) of the present utility model seals, the plastic film bag making machine of rolling at the uniform velocity, comes down to when this machine is worked, and the plastic sheeting of at the uniform velocity sending to is carried out stopping in wink sealing and then at the uniform velocity be transported to Bag Making Machine on the winding wheel.Promptly send (preceding) to receive the process that the film that (back) all can at the uniform velocity advance can pause therebetween and seal.The utility model is that the transformation to conventional plastic film Bag Making Machine forms, and the speed of this mechanism bag is fast, can adapt to sealing of thick or thin plastic sheeting especially.

The utility model is a whole set of transmission system, and electric control system under the cooperation of prset counter system, converts by rely on eccentric action by rotatablely moving that mechanical movement realizes to.

Initiatively two rollers and initiatively a roller are to rotate synchronously, and this has just guaranteed that the film degree of tightness yardstick that flows can not change between its two-wheeled.When two drive rolls rotate a week, transmission by two eccentric rotations and two connecting rods make rocking arm swing and hot knife up and down mechanical movement just heat-sealing is once, therefore the girth of two drive rolls just equals to seal the length of bag, the main girth of changing two drive rolls simultaneously just can obtain the length that our required bag film seals.

The effect of rocking arm of the present utility model is considerable, and it is to solve plastic foil from the uniform velocity stopping being heat sealed to the key point of at the uniform velocity rolling film feeding to wink.When complete machine is adjusted to synchronization action, when hot knife upwards leaves plastic sheeting; rocking arm is upwards waved by minimum point and carries and receive film (film before the rocking arm is quickened to draw); when hot knife when lower pressed film wink stops sealing; rocking arm discharges to lower swing has carried two live-rollers that the film of packing up is given uniform motion, makes film can not broken and guarantee the needs of uniform motion because of uniform rotation.

The utility model is worked as plastic sheeting by film volume winding wheel on active two rollers, rubber rollers, heat-sealing backing plate, rocking arm, rubber rollers, active one roller.Dress is during film, and quilt that must remaining certain-length between a roller initiatively and adjacent live-roller is done accelerated motion because of film to rocking arm with film and can not broken usefulness when upwards receiving film.After the start, the run-in synchronism of whole mechanism, plastic sheeting is advanced to the winding wheel direction by the film volume, moves up and down once when two drive rolls rotate all hot knifes, and simultaneously, rocking arm also teeters once.When hot knife from top to bottom during the press seal film, film wink stops, and rocking arm is flapped toward down initiatively that a roller direction discharges film, guarantees that film satisfies because of the needs of a roller uniform motion initiatively; When hot knife moves upward when leaving film, rocking arm upwards pendulum is received film, is prepared as to discharge film when sealing next time, and like this, drive roll rotates a week, and hot knife with regard to press seal once so moves in circles, and plastic sheeting does not just stop heat-sealing.

The girth of the utility model drive roll girth and winding wheel ratio become the multiple relation: winding wheel rotates a week, and drive roll is by setting the rotatable n week that is.The sealing line alignment of bag film on winding wheel that heat-sealing has been got well, convenient cutting.The multiple of drive roll and winding wheel is bigger, and the poly-bag number of rolling on the winding wheel the more.For example, the multiple of drive roll and winding wheel is 8 times, sets winding wheel when prset counter and rotates 200 circle shutdown, and a bag number that cuts down so is exactly 1600.So just improved labor productivity significantly.

The utility model has the advantages that the bag that can adapt to thick, thin plastic sheeting, film is at the uniform velocity gone up machine, intermittently pause through the heat sealing machine heat-sealing, return to the at the uniform velocity run-in synchronism of machine on the plastic sheeting again and at the uniform velocity go up winding wheel, realize the automation of this operation, rollingization is increased work efficiency, reduce labour intensity, reduce cost.

Below in conjunction with accompanying drawing example of the present utility model is described:

Fig. 1 is an organigram of the present utility model;

The organigram of the jockey that Fig. 2 waves for heat sealing machine of the present utility model.

Shown in Fig. 1,2, the utility model is in the transmission system of existing plastic film bag making machine, and electric control system is on the basis of prset counter system.Fixing two eccentric wheels 4,5 are housed on the driving shaft 15 of this machine, and eccentric wheel 4 is connected to a fixed by connecting rod 6 and hot knife 7; Another eccentric wheel 5 is connected to a fixed with rocking arm 9 by another connecting rod 8.Under the driving of motor, driving shaft 15 and eccentric wheel 4,5 rotate, at this moment, and by the effect of more piece connecting rod 6 and 8.On the one hand, hot knife 7 pumps the hot-pressing plastic film in sealing heat-sealing on the backing plate 14; On the other hand, rocking arm 9 is made oscillating motion folding and unfolding film 13.Simultaneously, travelling gear is housed also on driving shaft 15, under the effect of driving-chain, drive roll the 3, the 11st, diameter is identical, and at the uniform velocity does corresponding transmission synchronously.Like this, the plastics on the film volume 1 thin 13 are by live-roller 2, two rollers 3 initiatively, live-roller 17, hot knife 7, rocking arm 9 folding and unfoldings, live-roller 10, an initiatively roller 11 transmissions, winding wheel 12 rollings cutting take off the bag film of sealing.Initiatively the ratio of a roller 11 and the circumference of winding wheel 12 can be 1: 4 by designed polybag length or 1: 6,1: 8 etc.

Claims

1, batch (-type) seal, the plastic film bag making machine of rolling at the uniform velocity, comprise transmission system, electric control system, the prset counter system, it is characterized in that being fixed with on the driving shaft (15) two eccentric wheels (4), (5), eccentric wheel (4) is connected to a fixed by the envelope cutter of jockey (6) with sealing machine (7), and eccentric wheel (5) is connected to a fixed by jockey (8) and rocking arm (9).

2, batch (-type) according to claim 1 seal, the plastic film bag making machine of rolling at the uniform velocity, it is characterized in that transmission system includes diameter identical and at the uniform velocity active one roller (11) of running and initiatively two rollers (3) synchronously.

3, batch (-type) according to claim 1 seal, the plastic film bag making machine of rolling at the uniform velocity, it is characterized in that initiatively a roller (11) becomes multiple to concern with the ratio of the circumference of winding wheel (12).

4, batch (-type) according to claim 1 seal, the plastic film bag making machine of rolling at the uniform velocity, it is characterized in that jockey (6) is that rotation with driving shaft (15) changes transmission on the envelope cutter, the more piece connecting rod of following reciprocating action.

5, batch (-type) according to claim 1 seal, the plastic film bag making machine of rolling at the uniform velocity, it is characterized in that jockey (8) is that to change transmission be the upper and lower reciprocating type more piece connecting rod that waves of rocking arm (9) for rotation with driving shaft (15).