CN1151054C

CN1151054C - Continuous band centering device, in particular for blister pack producing machine

Info

Publication number: CN1151054C
Application number: CNB008085129A
Authority: CN
Inventors: 罗道尔弗·高登兹
Original assignee: IMA Industria Macchine Automatiche SpA
Current assignee: IMA Industria Macchine Automatiche SpA
Priority date: 1999-05-05
Filing date: 2000-05-03
Publication date: 2004-05-26
Anticipated expiration: 2020-05-03
Also published as: RU2217368C2; ITBO990221A1; JP2002544092A; ITBO990221A0; PL351375A1; ES2204551T3; BR0010285A; CN1353664A; EE04426B1; MXPA01011237A; DE60004510D1; DE60004510T2; IT1309695B1; EE200100577A; EP1175365B1; AU3984900A; EP1175365A1; CZ20013954A3; WO2000068130A1

Abstract

A device for centering a continuous band (2) driven through a series of working stations (7, 8) in a movement direction (D) includes at least one pair of rollers (12) rotatably carried with vertical axes, at the ends of arms (15). The arms (15) are pivoted along corresponding vertical axes on both sides of the band (2) symmetrically with respect to a longitudinal middle axis (A). The arms (15) are equipped with levers (23) for driving the arms (15) into symmetrical oscillation by limited angles. The arms (15) are subjected to the action of springs (22) which keep the rollers (12) touching the opposite sides of the band (2), so as to center the band (2) with respect to the movement direction (D).

Description

Make the device of continuous band centering

Technical field

The present invention relates to band, for example, the disposal of the bubble-cap band that in blister pack producing machine, uses.

More particularly, the present invention relates to produce the continuous band centering device of bubble-cap band.

Background technology

So far existing people proposes blister pack producing machine, is used for forming bubble-cap on the continuous band that the material of heat deformable is made, and product is filled in the bubble-cap of formation then.

Then, cover the bubble-cap band that is filled with product with the sealing band, weld together also is cut into single blister packaging material.

The band that the heat deformable material is made from a reel open around, along continuous straight runs moves past a preheating station on horizontal surface, moves past a forming station then, makes bubble-cap by appropriate device on forming station.

When in the zone that is in forming station, the longitudinal axis of the band that the heat deformable material is made must keep centering with respect to the ribbon motion direction.

Band will cause bubble-cap location mistake with respect to the transversion malposition of sense of motion in the thermoforming operating process, this can cause problem when loading bubble-cap with product, and this is because filler device is normally felt relieved on the longitudinal axis of band.

The transversion malposition of band may since act on the band pulling function or owing to the little defective such as the thickness of strip of band or width is not too constant causes.

For fear of the band dislocation, blister pack producing machine is provided with suitable guide piece, and band is resisted against on the guide piece, and guide piece makes band keep centering in bubble-cap building mortion upstream and downstream.

But the relative distance manual regulation between the guide piece is so that can change operation when adopting the band of different size.

But, the high manual intervention of change request cost of ribbon dimension, and need frequent adjustment with compensation band production tolerance.

File DD-A-47 845 discloses a kind of device that makes continuous band centering, and this device comprises the double-type sensor roll that is arranged on the band both sides that are held centering.Described double-type sensor roll is by " Y " shape framework for carrying, described " Y " shape framework in the point articulated and effect of bearing spring.

Described framework also has an anvil roll, and band moves on anvil roll.The deviation of band and normal route can cause the swing of framework, the orientation of anvil roll is become make band return normal route.Spring also by compression, its counteraction makes band return normal condition.

Summary of the invention

The objective of the invention is to is to avoid the problems referred to above, this is by proposing a kind of realization of installing, this device automatically makes continuous band keep constant with respect to the centering of ribbon motion direction, this device is used in the following machine especially, particularly in the blister pack producing machine, wherein be provided with the station of bubble-cap band process.

Another object of the present invention provides a kind of fexible unit,, makes bubble-cap band auto-centering and with the size of band and use the machine of this device irrelevant that is.

Another object of the present invention provides a kind of spotting device, and it is simple in structure, powerful and can easily be applied in the known blister pack producing machine.

According to the present invention, the device that makes continuous band centering is provided, described band was given at least one station along sense of motion, described device comprises: at least one pair roller, described roller is carried on the end of arm rotationally, axis is vertical, and described arm rotates around vertical hinge axes with respect to a longitudinal central axis line symmetrically in described band both sides; The device of described arm is bonded with each other, the described device that is bonded with each other is used to make described arm to do the limited symmetry swing of angle, and comprise two bars, and stretching out, have separately free-ended first bar and second bar from described arm respectively, described bar is provided with to such an extent that be bonded with each other at described free end; Act on the springing on the described arm, be used to make described roller to keep in touch, so that described band is felt relieved with respect to described sense of motion with the relative both sides of described band; Described spotting device is characterised in that: described bar is engaged with each other by a pin, and described pin is from the described first bar vertical extent, and engages with the respective grooves made in described second bar.

Description of drawings

Specifically consult the following drawings now, point out feature of the present invention in the detailed description below.

Fig. 1 is the diagrammatic side view that is provided with the blister pack producing machine of bubble-cap band spotting device of the present invention;

Fig. 2 is the vertical sectional view of apparatus of the present invention;

Fig. 3 is the corresponding planar view of this device.

The specific embodiment

Consult above-mentioned accompanying drawing now, label 1 is represented blister pack producing machine, and it makes bubble-cap on the continuous band 2 that the heat deformable material is made, and loads the bubble-cap that forms with each product then.

The band 2 of heat deformable material from a reel 3 that rotates around horizontal axis 4 open around, and on a horizontal surface, be driven by

transfer roller

5,6.

In the outlet of bubble-cap formation station 8, band 2 engages with guides 9, and this helps band 2 to turn to, and makes the upwards upset in unillustrated filling station thereafter of unlimited bubble-cap.

Be provided for making band 2 respectively in the upstream of preheating station 7 and the downstream of bubble-cap formation station 8, particularly its longitudinal central axis line A is with respect to the

device

10,11 of the sense of motion D centering of band.

The spotting device 7 that is positioned at preheating station 7 upstreams comprises pair of rolls 12 (Fig. 2), these rollers at the end bearing of arm 15 on the pin with vertical axis 13 separately.

This pair roller can rotate by antifriction-bearing box 14.

The roller 12 of spotting device 10 shown in Figure 2 is actual to comprise double-type roller 12a, 12b, and they are at separately a pair of coaxial axle 13a, the last rotation of 13b, so that engage from cylinder 3 (see figure 2)s open around the appropriate section 2a of band of heat deformable material, 2b, this will describe in detail hereinafter.

The part 2a of band extends at the horizontal surface upper edge of

station

7 and 8 direction D.

The arm 15 of roller 12 rotates on bearing set 17 by the main shaft 16 with vertical axis.

Bearing set 17 is fixed on the rest frame of machine in the relative both sides that are symmetrical in longitudinal central axis line A.

More definite, each main shaft 16 is carried in the sleeve 19 rotationally by antifriction-bearing box 18.

Sleeve 19 forms a 19a of ring-shaped flat portion in the middle, and its wider portion up.

Helical torsional spring 22 1 ends are fixed on the sleeve 19, and the other end is fixed on from the ring 21 at main shaft 16 tops that sleeve 19 stretches out.

Arm 15 is provided with square brace 23, and described brace is engaged with each other by a pin 24 at its free end (Fig. 3), and described pin 24 engages with the corresponding groove of making in second bar 25 from the first bar vertical extent.

But these two bars also can be with different modes, for example by joints such as tooth portions.

The purpose of manual engagement bar 23 is the arms 15 that drive the elastic reaction of bearing spring 22, carries out the rotation of the symmetry of limited angle, so that roller 12 is kept in touch with the relative both sides of band 2, thereby band is felt relieved with respect to its sense of motion D.

The elastic reaction of spring 22 can be passed through predetermined angle of rotational sleeve, changes sleeve with respect to the position, angle of main shaft 16 and change.

The position that is arrived is to keep stable by the ball 26 that is bearing on the spring, and described ball is contained on relative fully position in the corresponding seat of making in the ring 27, and described ring 27 is fixed on the cover 28 of supporting member 17.

Be bearing in ball 26 on the spring flexibly be bonded on make among the flat 19a of portion of sleeve 19 and circumferential a series of recess 29 in.

Sleeve 19 is by with ring nut 30 axial restraints that engage of ring 27 upper surfaces.

Therefore, above-mentioned relative both sides that act on band 2 and be subjected to the elastic reaction of spring 22 by the roller 12 of swing arm 15 carryings, the axis A that automatically makes band 2 is with respect to sense of motion D centering, as shown in Figure 3.

If the size of the band of heat deformable changes, so, device is automatically regulated centering and be need not any manual adjustment.

In fact, arm 15 can be wound with the limited angle of axis swing of closing main shaft 16, so that roller 12 and band side are kept in touch, as shown in Figure 3, dotted line 20 is represented the band of broad, and dotted line 120 representatives are because the relevant position that the swing of arm 15 occupies roller.

Should be noted in the discussion above that auto-centering guarantees by following situation: the arm 15 of bearing roller 12 is owing to realizing being bonded with each other and swinging identical angle symmetrically by bar 23.

Function and said apparatus 10 similar second spotting devices 11 with respect to sense of motion D, are arranged on the downstream of forming station 8.

Each roller 12 of second spotting device 11 is characterised in that guiding band 2 (Fig. 1) in a groove 31.

Substantially be arranged in groove 31 on the horizontal surface that band 2 moves and can prevent that band 2 from lifting moving along sense of motion D.

Therefore, according to device of the present invention can solve special in blister pack producing machine continuous band with respect to the auto-centering problem of ribbon motion direction.

This makes ribbon dimension to change and need not manual adjustment, thereby has improved capacity rating, saved cost of labor.

The change that should be noted also that strip width has overcome the power that makes band direction of relative movement D dislocation on the band that acts on effectively by device of the present invention alignment automatically.

Another advantage of spotting device of the present invention is that simple in structure, function is strong and be easy to be applied on the known blister pack producing machine.

Device of the present invention is produced machine in conjunction with its applied bubble-cap and is described, and still, this device also can be applied in all scenario of band with respect to sense of motion centering that must make by series of work stations.

Obviously the description above is the example of indefiniteness, therefore, carries out various structural changes in the protection domain that reaches the technical solution of the present invention described in the claim that can describe in the above.

Claims

1. make the device of continuous band centering, described band (2) was given at least one station (7,8) along sense of motion (D), and described device comprises:

At least one pair roller (12), described roller is carried on the end of arm (15) rotationally, and axis is vertical, and described arm (15) rotates around vertical hinge axes with respect to a longitudinal central axis line (A) symmetrically in described band (2) both sides;

The device of described arm (15) is bonded with each other, the described device that is bonded with each other is used to make described arm (15) to do the limited symmetry swing of angle, and comprise two bars (23), stretch out, have separately free-ended first bar and second bar from described arm (15) respectively, described bar is provided with to such an extent that be bonded with each other at described free end;

Act on the springing (22) on the described arm (15), be used to make described roller (12) to keep in touch, so that described band (2) is felt relieved with respect to described sense of motion (D) with the relative both sides of described band (2);

Described spotting device is characterised in that: described bar (23) is engaged with each other by a pin (24), and described pin is from the described first bar vertical extent, and engages with the respective grooves (25) made in described second bar.

2. device as claimed in claim 1, it is characterized in that: each described arm (15) is gone up at main shaft (16) separately and is rotated, each described springing (22) comprises a torsion spring separately, one end of this torsion spring is fixed on the top of described main shaft (16), the other end of described springing is fixed on the relevant bearing sleeve (19), and described main shaft (16) axially passes described sleeve.

3. device as claimed in claim 2 is characterized in that: described sleeve (19) can rotate a predetermined angular with respect to relevant main shaft (16), so that regulate the elastic reactance of described torsion spring (22).

4. device as claimed in claim 3, it is characterized in that: comprise be installed in one with the coaxial ring (27) of each sleeve (19) in be bearing in ball (26) on the spring, so that flexibly be bonded in a plurality of recesses (29) of making in the flat portion (19a) of described sleeve (19), described flat portion (19a) is held against on the described ring (27), and the position, angle of described sleeve (19) is fixed.

5. device as claimed in claim 1, it is characterized in that: also comprise double-type roller (12a, 12b), they are at separately coaxial axis (13a, 13b) go up rotation, so that engage open from a reel (3) along described sense of motion (D) around the heat deformable material described band (2) appropriate section (2a, 2b).

6. device as claimed in claim 1 is characterized in that: each described roller strap has a groove (31), and described band (2) is directed in described groove, and described groove is positioned at described band (2) along on the mobile horizontal surface of direction (D).