CN201148215Y - Filling tube for liquid packaging equipment - Google Patents

Abstract

The utility model provides a filling tube (1) for a liquid packer, which is used to guide liquid filling material into a packing cylinder (2). The packing cylinder (2) moves forward around the filling tube (1) and is longitudinally sealed. The filling tube (1) of the utility model is provided with a damping part (31) which encloses the filling tube (1) to form a cavity with a lower opening; the damping part (31) is provided with holes (311) and a membrane; the outer surface of the skirt (312) of the damping part (31) is hermetically contacted with the inner wall of the packing cylinder (2); the membrane and the valve body (310) of the damping part (31) can form a liquid-flowing channel sectional area which is gradually lessened and rapidly expanded. The filling tube (1) of the utility model can not only provide enough filling pressure but also complement return liquid at a large flow.

Description

The filling pipe that is used for liquid packing device

Technical field

The utility model relates to a kind of filling pipe, is positioned at the continuous packing tubular article of a longitudinal sealing, is used for liquid packing device, especially on the bottle placer.By filling pipe, import liquid filler material in the packing tubular article, and, form the individual packages container through laterally involution, cutting.

Background technology

In bottle placer, packaging strip is untied from reel, is transported to chlorination equipment, and by applying a kind of chemosterilant, as hydrogen peroxide, packaging strip is sterilized processing.Packaging strip after sterilization is evaporated by force and is pushed, and surface disinfectant is removed.Then, as shown in Figure 1, packaging strip fill pipe 1 axially on advance, by the effect of shaped device (not shown), form ellipticity or cylindric gradually, and under the effect of sealing arrangement (not shown), two longitudinal edges overlap joint involution, promptly form packing tubular article 2, be enclosed in the above-mentioned packing tubular article 2 and fill pipe 1 with vertical envelope 22.

The front end of packing tubular article 2 advance to the open end of filling pipe 1 with upper/lower positions, the horizontal involution of sealed device (not shown) forms horizontal sealing 21.Liquid or flow-like liquid 10 as milk fruit juice, pasteurize or high-temperature treatment (UHT), grape wine etc., as shown by arrows, flow into and fill pipe 1, and in open end is introduced above-mentioned packing tubular article 2.Packing tubular article 2 continues to move ahead after the preset length, be subjected to the effect of sealing arrangement (not shown) once more, form horizontal sealing 21 elsewhere, the tubular article that liquid 10 is housed simultaneously is under the effect of shaped device (not shown), form preset shape, last device to be cut (not shown) cuts off, and forms individual packages container 20.As selection, packing container 20 can be by corresponding folding and shaped device, and is folding further and form final shape, the i.e. packing container of brick shape or other shapes along folding line.

In the making of above-mentioned packing container 20, when packing tubular article 2 is formed and sealing arrangement when clamping, the liquid 10 in the tube is stopped that liquid level will rise; New packing container independently forms, and subsequent packages material tubular article 2 continues descending, and the in-to-in liquid levels descends.In the normal operation of equipment, above-mentioned circulation is repeated continuously, and the liquid level of the liquid 10 in the packing tubular article also repeats play up and down.We are normally according to the position range of detected above-mentioned liquid level, come regulating control to fill the valve of pipe 1, and the flow of filling pipe 1 is injected in control then, are filled in requirement under the friction speed thereby satisfy product.

In the packaging facilities operational process, when the packing tubular article is formed and sealing arrangement when clamping, wish to have big pressure to produce (can produce) by the damping that strengthens withdrawing fluid, to avoid the packing tubular article when forming continuous packing container 20, to produce low pressure, have a negative impact, occur defectives such as pit as packing container 20; And independently form at new packing container, the packing tubular article continues when descending, wishes to have enough big flow to replenish (can by the damping generation that reduces withdrawing fluid) again.How to properly settle the damping of withdrawing fluid, satisfy the requirement under the above-mentioned different situation simultaneously, be still the difficult problem in the filling apparatus so far.

Summary of the invention

The purpose of this utility model provides a kind of improved filling pipe that is used on the liquid packing device, can timely and effective additional withdrawing fluid, can produce bigger injection pressure again, thereby avoid in the packing tubular article, forming low pressure, improve the shaping of packing container.

The technical solution of the utility model is: this filling pipe has damping piece, around the cavity of filling pipe formation lower ending opening; Damping piece has the hole, diaphragm; The outer skirt surface of damping piece can form sealing with the inwall of packing tubular article; The valve body of diaphragm and damping piece can form the liquid communication channel cross-sectional area that diminishes gradually and enlarge rapidly.

Damping piece can be regulated in the position of filling on the pipe, and during the packaging facilities low cruise, the position is down regulated; During the packaging facilities high-speed cruising, the position is toward adjusted, and the bottom of damping piece is positioned at all the time fills more than the tube opening end.

The skirt section of damping piece is a tubular, makes that damping piece lower end and packing tubular article area of contact are bigger, thereby improves the seal degree of contact.

The main body of damping piece is a valve body, and it is hood-like to be cone, and promptly its outside face, inside face are the conical surface.

Damping piece, its edge, skirt section adopts elastomeric material at least, as the elasticity or half elastomeric material of rubber or common plastics, nylon and so on.When being subjected to hydraulic shock, the inner wall sealing of outside expansion in skirt section and packing tubular article.

The valve body top of damping piece or side perforate.Hole size and quantity, should make each cross section, hole account for place, hole face on the damping piece area most, as greater than 50% for well.

When the liquid that the diaphragm of damping piece is subjected to the damping piece lower end makes progress flow-reversing impingement, upwards slide or outwards swing, form diminishing gradually of liquid communication channel cross-sectional area between diaphragm and valve body, thereby the resistance that makes liquid upwards reflux strengthens gradually, filling pressure increases gradually.As required, also can between diaphragm and valve body, form closure, fully upwards refluxing by damping piece lower end liquid.When damping piece lower end liquid reduce or hydraulic pressure less, diaphragm falls back to free state or initial position under the effect of spring, and the liquid communication channel cross-sectional area that forms between valve body enlarges rapidly, makes the liquid of damping piece upper end reflux fast downwards and replenishes.Therefore, use filling pipe of the present utility model, can timely and effective additional withdrawing fluid, can produce bigger injection pressure again, satisfy the requirement under the different can situations, solved a great problem in the filling apparatus.

Description of drawings

Fig. 1 generally fills the scheme drawing of pipe on liquid packing device;

Fig. 2 is to use the utility model to fill the scheme drawing of pipe, for clarity sake, the packing tubular article is cut open;

Fig. 3 is the cutaway view that the utility model is filled pipe;

Fig. 4 is the block diagram that the utility model is filled another embodiment of pipe;

Fig. 5 is the cutaway view that the utility model shown in Figure 4 is filled another embodiment of pipe;

Fig. 6 is the cutaway view that the utility model is filled the 3rd embodiment of pipe.

The specific embodiment

As Fig. 2, shown in Figure 3, the damping piece 31 that this embodiment fills pipe has valve body 310, and valve body 310 is centered around fills pipe 1 and form cavity 313, and the bottom is cylindric skirt section 312.Have on valve body 310 tops and to be no less than two holes 311.In addition, damping piece 31 also comprises diaphragm 314, back-up ring 315.Diaphragm 314 strings are the disk shape filling on the pipe 1, can move axially along filling pipe 1 under the promotion of flowing material.When diaphragm 314 is subjected to the impact of lower end withdrawing fluid, overcome spring 316 effect upward movements, form diminishing of liquid communication channel cross-sectional area at diaphragm 314 and 310 of valve bodies, thereby the resistance that makes liquid upwards reflux strengthens, filling pressure increases.Certainly, as required, also can form closure, fully upwards refluxing by diaphragm 314 lower end liquid at diaphragm 314 and 310 of valve bodies.When diaphragm 314 lower end liquid reduce or hydraulic pressure less, diaphragm 314 falls after rise under the effect of spring 316, the liquid communication channel cross-sectional area of diaphragm 314 and 310 formation of valve body enlarges rapidly, makes the liquid of diaphragm 314 upper ends and damping piece 31 upper ends reflux additional fast downwards.Back-up ring 315 is fixed on fills on the pipe 1 lowest positions of limiting diaphragm 314.Damping piece 31 is fixedly mounted on by screw 11 and fills on the pipe 1, and its lower end position is higher than the open end of filling pipe 1.

Fig. 4 and shown in Figure 5 is that another embodiment fills pipe.The damping piece 32 that this embodiment fills pipe has valve body 320, and valve body 320 forms cavity 323 around filling pipe 1, and the bottom is cylindric skirt section 322.Have in valve body 320 sides and to be no less than two holes 321, this hole by about and the cut surface of lower end produce, its cut surface has gradient, helps the inside swing of movable diaphragm 324, and can not be ejected the outside.Diaphragm 324 adopts elastomeric material, and swing can produce the deformation-recovery moment of similar diaphragm spring.Diaphragm 324 only upper end is fixed on valve body 320, and separate with valve body 320 as side, bottom on all the other limits, and it separates the promotion lower swing of limit at flowing material.Be subjected to when diaphragm 324 swinging after the impact of damping piece 32 lower end withdrawing fluids, form diminishing of liquid communication channel cross-sectional area at diaphragm 324 and 320 of valve bodies, thereby the resistance that makes liquid reflux to damping piece 32 upper ends strengthens, filling pressure increases.Certainly, as required, also can form closure, fully upwards refluxing by damping piece 32 lower end liquid at diaphragm 324 and 320 of valve bodies.When diaphragm 324 lower end liquid reduce or hydraulic pressure less, diaphragm 324 self elastic potential energy discharges, swing back the flexible state of oneself, the liquid communication channel cross-sectional area of diaphragm 324 and 320 formation of valve body strengthens rapidly, makes downward fast backflow of liquid of damping piece 32 upper ends replenish.

Fig. 6 also is an embodiment.The damping piece 33 that this embodiment fills pipe has valve body 330, and valve body 330 is centered around fills pipe 1 and form cavity, and the lower end is cylindric skirt section.On the top of valve body 330 or the side have and be no less than two holes 331.In addition, damping piece 33 also comprises diaphragm 334, back-up ring 335, spring 336.Diaphragm 334 strings are the disk shape filling on the pipe 1, can be along filling moving axially of pipe 1 under the promotion of flowing material.When diaphragm 334 is subjected to the impact of lower end withdrawing fluid, overcome spring 336 effect upward movements, form diminishing of liquid communication channel cross-sectional area at diaphragm 334 and 330 of valve bodies, thereby the resistance that makes liquid upwards reflux strengthens, filling pressure increases.Certainly, as required, also can form closure, fully upwards refluxing by diaphragm 334 lower end liquid at diaphragm 334 and 330 of valve bodies.When diaphragm 334 lower end liquid reduce or hydraulic pressure less, diaphragm 334 falls after rise under the effect of spring 336, the liquid communication channel cross-sectional area of diaphragm 334 and 330 formation of valve body strengthens rapidly, makes the liquid of diaphragm 334 upper ends and damping piece 33 upper ends reflux additional fast downwards.Back-up ring 335 is fixed on fills on the pipe 1 lowest positions of limiting diaphragm 334.

Claims (7)

1. filling pipe (1) that is used for liquid packing device, be used for liquid filler material (10) is imported in the packing tubular article (2) of its longitudinal sealing that continues to move ahead, it is characterized in that: this filling pipe (1) has damping piece (31,32,33), around the cavity of filling pipe formation lower ending opening; Damping piece (31,32,33) has hole (311,321,331), diaphragm (314,324,334); Skirt section (312, the 322) outside face of damping piece (31,32,33) can form sealing with the inwall of packing tubular article (2); The valve body of diaphragm and damping piece (310,320,330) can form the liquid communication channel cross-sectional area that diminishes gradually and enlarge rapidly.

2. filling pipe as claimed in claim 1 is characterized in that: the damping piece of this filling pipe (31,32,33) has the hood-like valve body of cone (310,320,330), and its outside face, inside face are the conical surface; Above-mentioned valve body lower end is cylindric skirt section (312,322).

3. filling pipe as claimed in claim 2 is characterized in that: the damping piece of this filling pipe (31,32,33), and edge, its skirt section (312,322) adopts elastomeric material at least; When being subjected to hydraulic shock, skirt section (312,322) can outwards expand and the inner wall sealing of packing tubular article (2).

4. filling pipe as claimed in claim 3 is characterized in that: the damping piece of this filling pipe (31,32,33) is adjustable in the position of filling on the pipe (1), but the bottom of damping piece is positioned at more than the filling tube opening end all the time.

5. as each described filling pipe in the claim 1 to 4, it is characterized in that: the damping piece of this filling pipe (31) has the hole (311) that is no less than two on valve body (310) top; The diaphragm of disk shape (314) string is being filled on the pipe (1), can move axially along filling pipe (1) under the promotion of flowing material; When diaphragm (314) overcomes spring (316) effect and is in topmost, and valve body (310) forms minimum circulation passage; Back-up ring (315) is fixed on fills on the pipe (1) lowest positions of limiting diaphragm (314).

6. as each described filling pipe in the claim 1 to 4, it is characterized in that: the damping piece of this filling pipe (32) has the hole (321) that is no less than two in valve body (320) side; Diaphragm (324) only upper end is fixed on valve body (320), and all the other limits all are separated with valve body; Diaphragm (324) forms the liquid communication channel cross-sectional area that changes between diaphragm and valve body at the promotion lower swing of flowing material; Diaphragm (324) adopts elastomeric material, and swing can produce the deformation-recovery moment of similar diaphragm spring.

7. as each described filling pipe in the claim 1 to 4, it is characterized in that: the damping of this filling pipe 13 (33) on valve body (330) top or the side have the hole (331) that is no less than two; Disk shape diaphragm (334) string is being filled on the pipe (1), can move axially along filling pipe (1) under the promotion of flowing material; Move to topmost when diaphragm (334) overcomes spring (336) application force, and valve body (310) forms minimum circulation passage; Back-up ring (335) is fixed on fills on the pipe (1) lowest positions of limiting diaphragm (334).

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