JPS58109056A - Apparatus for supplying web material, especially, web for transferring supository to processing place continuously - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an apparatus for continuously supplying web-like materials, particularly webs for the transfer of suppositories.

The specific case of a web for transporting suppositories will be described below, but the present invention is not limited to this use only, and can be applied to various other technical fields for transporting web-like materials in various continuous processing devices. It should be understood that it can be used for

A web for suppository transfer formed of two welded thin plates forming a plurality of vesicular containers arranged in order, each spaced apart and open at one end. Various methods and devices are known for the continuous production of suppositories, in which the molten substance to be prepared is filled into vesicular containers and then subjected to cooling treatment in a cooling station. Operated continuously, the web is placed vertically and it is after leaving this location that the vesicular containers, filled and cooled as described above, are finally closed.

The web, which is usually formed of aluminum, should be uniformly fed without deformation that would adversely affect its smooth forward movement.

Generally, the web is provided with lugs or tabs between the vesicles along the ends of the fins, which lugs or tabs are formed by excess material resulting from the formation of the vesicles by deep drawing. However, this material was left at the end of the web as it was used to make the vesicles. These lugs or tabs are used to drive the web through processing or cooling stations.

In particular, type 1 wheels made of a resilient material, such as silicone resin, have been used so that the teeth of the wheels can drive the lugs or tabs, and thus the web, in synchronization with the formation and filling of the vesicular vessels. ing.

However, this method has proven not to be without problems.

In fact, 1 contains large suppositories or large weight products.
1 The heavy web that transports the drug is K due to its forward motion.
may require undesirable deforming pressure between the teeth and the tabs, thus impairing forward movement. Therefore, one type of wheel designed for a given type of web will not be compatible with another type of web, and therefore all wheels at the processing station must be replaced, which is expensive and time consuming. It's a manipulation.

Another problem arises from wheel wear due to friction. In practice, these have to be made of elastic material in order to keep the tabs from deforming and therefore wear out relatively quickly. For these reasons, it is also necessary to frequently replace parts, resulting in loss of time and disruption of the manufacturing cycle. On the contrary, a wheel that is too soft will itself undergo deformation, which will prevent accurate feeding of the web.

A further consideration is the occurrence of accidental spillage of product from the vesicular container.

This product material, which is viscous due to the high temperature treatment it has undergone, becomes a form of lubricant for the retention area between the wheel and the tab, so that the wheel teeth may slip on the web. , and that forward motion no longer occurs.

In view of the above circumstances, the tenth aspect of the present invention provides that the above-mentioned disadvantages and limitations are alleviated and that tabs, other protrusions or The object of the present invention is to provide a device for continuously feeding a web for transporting suppositories to a processing station when web-like material is produced, resulting in a uniform and reliable drive of any web without deformation of the lugs. Another object of the invention is to provide an apparatus as described above in which the web can be driven along any desired path without a particular forced path through the processing station. be.

These and other objects, which will become apparent from the description below, are aimed at producing web-like materials, in particular dust particles, with devices in which the web in a vertical position is driven preferably along a spiral path. In a device for feeding a continuous web for transport to a processing location, such as a cooling location,
created by a continuous feed device for web-like material, characterized in that the drive device has a web support and displacement device extending along at least a major part of the web path and capable of bending in the same direction as the web is bent; Ru.

Preferably, the web support and movement device is a chain running in a guide following the path provided for the web, which is carried along the navigation path by means of sprockets provided at several locations. Driven.

That is, in the apparatus according to the invention, the web rests on a moving support device for almost the entire path of travel through the processing station, so that the retaining for forward feeding is carried out at numerous points along the lower edge of the web. point and no longer relies entirely on the mutual engagement of the deformable wheel and tab.

Preferably, by having the web support pace be a moving pace, the friction created due to advancement of the web is reduced, but it also causes the web to move along the pace rather than slipping over the stationary pace. This is because it moves on top of you. Thus, any retaining members provided between the support device and the web can engage lugs or tabs on the web without risk of deforming them, but at the same speed as the support device. This is because they are no longer required to move forward and take on the full pressure of the forward feeding movement. Preferably, the flexibility of the support device gives rise to the possibility of following an arbitrarily chosen path through the processing location.

Furthermore, the flexible support device can follow the web for its entire path except for a small portion where it bends back to its starting point, said small portion being able to initially pass through this engagement in the area where the web is released from the support device. It can be kept as small as possible by moving it closer to the area where it occurs.

Other features and advantages of the invention will become apparent from the following detailed description of preferred embodiments, given by way of example only, and with reference to the accompanying drawings in which: FIG.

A web of web-like material, sometimes formed in a known manner and forming a plurality of parallel-extending vesicles (2), filled with the 1IlII composition constituting the suppository.
1) is supplied to the processing station (3) II K cooling station (3) in a vertical position, i.e. held in an upright position.

The treatment place (3) emanates from a parallelepiped-shaped ujinda (4) with an inlet (5) and an outlet (6), between which there is one or a spiral path of the mold (e.g. spiral-shaped path), in particular the first The web (1) is advanced along a path extending along two spirals as shown in 1WJvC.

Each spiral is a coil (7) that shrinks towards the center.
coils (8) are interposed between them, which gradually expand toward the starting point. In the figure, only a portion is shown for convenience of illustration.

At the center of the spiral, the web forms a double loop (
9), at the end of the first spiral the web (1) runs along a straight section (1(l) and then follows a second spiral similar to the first one by 5°.
is guided along said path by a path on two parallel panels aυ and aa arranged horizontally in the top of the suppository (4), depending on the height or length dimension of the suppository (2). Guides are formed in the form of grooves 0 and I, respectively, slightly widely spaced apart. First, the groove Q3 in the upper panel aυ is a through groove, while the groove Q4 in the lower panel α2 is a through groove.
) is virtually closed at its bottom. The web (1) is thus guided with its upper and lower ends in grooves 0 and a4, respectively.

In the illustrated example, the web (1) is naturally cooled, but suitable cooling devices may also be provided along the path of the web (1).

In the processing location (3) the web (1) is advanced by a feeding device which, according to the invention, comprises:
extending over at least the main part of the path taken by the web (1);
A moving support device a for the web (1) that can bend in the same direction as the web (1) thickens! According to a preferred embodiment of the invention, the mobile support device comprises a web (
It consists of a chain (c) guided in a lower groove a♦ that follows almost the entire curved path of 1). The chain aS is in the form of a tassel loop, located near the entrance area of the s1 spiral, and in the area where one web (1) comes off from the first spiral, that is, in the area -
, where the chain αS follows an arcuate return path in a guide part Q7) connected to the corresponding position of the groove I. Similarly the 1 second chain (1) engages the carrier of the web (1) along the tortoise 2 spiral, but the chain exits (1).
6) - in the region slightly above the arcuate return path alk away from the second chain (alk) and thus re-engages nib (1) at the inlet end of the second speitzl. Such an arrangement minimizes the portion of the path during which the web (1) is not supported by chains or other supporting devices during processing station noise. The chain αS, which has the same length as the groove @ and can therefore be pushed and pulled, is 211 in the groove I in which the web (1) moves in the opposite direction! ! ! It is driven by a plurality of sprunuts IL4C provided at specific locations formed between the parts along the path of the chain. That is, each spronut (1) drives two parts of the chain a-field simultaneously in opposite directions, so that the overall number of spronuts (supports) can be reduced considerably.

The Sufushinat member has the same carrier shaft (c)
Each sprocket K is fixed and driven by a drive chain Q4, and is rotationally driven by a sprocket nut (22) attached to the wing.In particular, the common shaft (c) of the pair of sprockets and (c) of each sprocket is connected to the processing area. It is rotatably held in a bearing pull (c) attached to a space M@ of a housing (4) that separates the drive area from the drive area.

Closed loop drive (drive chain (2) is winter sprocket)
c! The route is such that all the sprockets are rotated via the sprocket nut 4 at the fii time. It may be a radial path as shown, or it may be a long, lobed path K)tV1 radially to engage sprockets arranged along a single radius of the spiral.

In the embodiment shown in Fig. 111, what is shown by the fin is a chain tensioning wheel through which the drive chain @ is passed, and the gap! It is rotatably held by a bearing plotter attached to one wing.

As seen in #11tMJ, a drive chain is provided for each spiral in the path of the web (1). The drive chain is a gear cellar supported below 11@
2), the gear set is rotationally driven by a variable speed electric mechanism 6 adjustablely mounted on the housing (4), e.g. via a belt. . The gear set (2) and each spout (2) of both spirals are of course dimensioned to drive both drive chains at the same speed. It should be noted that the illustrated, protruding arrangement provides for a uniform forward feeding motion for the drive chain Q4 along a curved path.1 Web (1) The excess material left over by the formation of an annular vessel usually contains lugs or tabs arranged at regular intervals along the edge of the web (1);
(to) can also be used to avoid slippage between the support device α magatama and maintain the stability of the web.

According to a preferred embodiment, the chain QeK may have a plurality of pegs or other engaging members (b), which are arranged inside the chain (1!9 Norita-sloop) and project upwardly. The web (1) is in contact with some of the tabs (to) to ensure the drive of the web (1).Since the web (1) rests on the moving chain Q51, the retaining member ( 2) differs from conventional devices in that it does not have a dedicated driving action, and only makes safe contact, and the tab (
It should be noted that there is no possibility of deforming the (to) and nullifying its forward movement. Peg (2) is connected to web (1)
), it is possible to limit the number of such pegs and thus also to reduce the manufacturing price of the chain. In practice, each peg ensures the transfer of a portion of the web (1) from several vesicular vessels (2) and then releases it when it leaves the spiral or moves near its end. .

Preferably, the track in which the chain a9 is slidably housed may be made of a non-frictional material, such as high density polyethylene, which has self-lubricating properties.

From the above description and illustrations, it can be seen that for most of its path in the processing station (3) the web (1) is carried by chains or other sigma supporting and moving devices a9 forming a moving base or bed for the web (1). It is clear that it is placed on top. Therefore, the web (1) does not slide on a stationary base or bed as in conventional devices, which can considerably reduce the frictional resistance between the web and its guiding track, and during the driving of tabs or other lugs of the web. There is no risk of deformation.

This is because they no longer serve the purpose of fast ◆driving. It will be appreciated that in addition to these and other advantages of each of the above-mentioned guns, the apparatus described above is of simple and economical construction.

Of course, the device described and illustrated above can be subjected to numerous modifications and changes without departing from the conceptual scope of the invention.

Thus, the web path can also be provided differently than shown, for example with alternating curved paths. Also, the first
It is also possible to provide a single chain running from the spiral to the second spiral and connected to the first spiral. In the case where the web (1) is free of lugs or tabs of the type described above, the retaining member may be engaged with the vesicular container itself. Additionally, the device can be used as a function of processing equipment upstream or downstream from where it is introduced.
A web (such as a chain or other web support device)
It is also possible to install a control and adjustment system effective for adjusting and controlling the speed in 1). Additionally, devices may be provided at the inlet and outlet ends of the treatment location to control any abnormalities that may occur within the location.

[Brief explanation of the drawing]

FIG. 1 is a plan view of an apparatus according to the invention, with the web path being simplified for illustration purposes; FIG. 2 is an elevational view of a power drive for driving the transport device for conveying the web;
FIG. 3 is a top view of the power drive device, FIG. 4 is a side view of the suppository holding web in the processing location, and FIG. A cross-sectional view taken at right angles to the direction of web movement at
FIG. 6 is a cross-sectional view similar to No. 5Wi taken in a position where the moving support device is directly driven by the power drive. (1)...web, (2)...dust ml, (5)...
・Web entrance, (6)... Web exit, (7)...
Inward coil, (8)...Outward coil, (7)
, (8)...Spiral path, a:l, a4...
Guide, (c)... Drive device or web support moving device or c chain, (2), (2)... sprocket, @... common drive chain, (to)... tab, (2
)...Engagement member. Representative Patent Attorney Sanro Kimura

Claims (1)

Scope of the Claims
a web feeding device, characterized in that the drive device is a web supporting and moving device extending along at least a major portion of the web path and capable of deflecting in the same direction as the direction in which the web is deflectable; shaped material feeding device. (2) The web supporting and moving device consists of a chain guided within a guide following the web path, and the chain is driven by each spout nut provided at several locations along the chain path. A supply device for the patent-seeking category 1, Clause 1, characterized by: (3) The web supporting and moving device is characterized in that it has a retaining member that engages with a tab or lug formed by forming a vesicle-like receptacle within a portion of the web. A supply device according to claim 1 or 2. (4) The web supporting and moving device has a loop shape connected by a web inlet and a web outlet area forming the web path, and the inlet and outlet areas are located close to each other. A supply device according to claim 1, 2, or 3. (5) said web path is at least one spiral path having centrally contracting coils and outwardly expanding coils arranged alternately therebetween, and said sprocket comprises two spiral paths of said chain; 3. Feeding device according to claim 2, characterized in that it is mounted in a defined position between the 5 and 1 coils so as to simultaneously drive the parts in opposite directions. (6) The feeding device according to claim 2, wherein the chain has a width approximately equal to the width of the guide and follows a closed curved path. (7) The feeding device according to claim 2 or 6, characterized in that it is made of Illll I Guide abrasive material. (8) The sprocket is rotated by a common drive chain through the same number of attached sprockets as the sprockets, and the common drive chain engages all the attached sprockets at the same time. 6. The feeding device according to claim 2 or 5, wherein the feeding device follows a meridian. (9) The web has **vesicular containers formed therein, and the engaging members are arranged at intervals longer than the distance between the vesicular containers. A feeding device according to claim 5, characterized in that: