DE102011111943A1 - Sprocket chain for transporting heated transport goods such as hollow glass articles, has contact elements that are axially and radially connected with isolation tab through connecting links - Google Patents

Abstract

The sprocket chain (1) has connecting links (5) for connecting toothed plates (2) for force and motion transmission, with each other and with rising elements (4) for heated transport goods. The thermal conductivity of rising element is lower than that of toothed plate. The contact elements are axially and radially connected with isolation tab (3) through connecting links. The pitch (p1) of toothed plate is smaller than pitch (p2) of isolation tab. The height (h2) of isolation tab is greater than height (h1) of toothed plate.

Description

The invention relates to a toothed transport chain for transporting heated goods with a toothing p ₁ having a pitch p _{1 for} transmitting forces and movement, with connecting members for axial and radial connection of the toothed plates with each other and with Aufstandselementen on top of the heated transport goods, in which the Aufstandselemente a lower thermal conductivity as the toothed plates have.

Generic tooth drive chains with heat-insulating rearing elements are well known in the art. By means of the heat-insulating riot control elements, the risk of critical extraction of heat from, for example, oven-warm goods to be transported can be well prevented. Such riot control elements are often made of a ceramic material whose thermal conductivity is significantly lower than about that thermal conductivity of a high-strength toothed link steel.

For example, from the patent DE 42 29 055 C2 a device for the transport of oven-warm products, in particular of hollow glass articles from a glass making machine, known in which a ceramic footprint on a transport tooth chain of heat-insulating, ceramic elements is formed, and in which the ceramic elements are lined up on special pins that pass through openings of special toothed latches which are arranged in the transport toothed chain. By the ceramic elements, a critical heat dissipation from the oven-warm products can be well prevented. However, the sprocket has a relatively complicated structure to integrate the ceramic elements in the sprocket, whereby the sprocket shown also often does not work or only adversely with conventional sprockets.

It is an object of the invention to construct generic transport tooth chains easier.

The object of the invention is achieved by a toothed transport chain for transporting heated goods with a pitch p ₁ having teeth straps for transmission of forces and movement, with connecting members for connecting the toothed plates with each other and with Aufstandselementen on top of the heated transport goods, in which the Aufstandselemente a lower have thermal conductivity than the toothed plates, and wherein the contact elements comprise insulated joints at a pitch p _2, which are mounted on the connecting members and thus also axially and radially interconnected by the connecting members, the pitches p ₁ and p ₂ a splitting ratio of p ₁ have smaller p ₂ to each other. Thus, the invention proposes that a pitch p _{1 of} the toothed plates is smaller than a pitch p _{2 of} the insulating tabs.

The connecting elements are used in particular for connecting the toothed plates in a radial and / or axial direction. The axial direction preferably corresponds to a transport direction of the goods to be conveyed or a direction of movement of the transport chain. The radial direction preferably corresponds to a transverse direction of the transport chain and is preferably perpendicular to the axial direction.

Due to the structure selected, an extraordinarily advantageous combination of particularly high tensile and wear resistance combined with significantly lower thermal conductivity can be achieved on the surfaces of the toothed tooth conveyor chain which are in contact with the heated transport goods.

In the present case proven toothed plates z. B. of heat-treated steel with insulating tabs, especially with Isolierzahnlaschen, are combined from a material with significantly lower thermal conductivity value such that the essential tensile forces are transmitted through the steel toothed plates, while at the same time a product contact takes place exclusively on the insulating tabs.

Advantageously, the component dimensions of the toothed plates and the insulating tabs in the present case are selected to be so similar that the inventive toothed conveyor chain can be installed in the manner of a normal toothed chain, whereby conventional toothed chains in existing systems can be easily replaced by the present toothed toothed conveyor chain.

In this respect, substantially identical manner can also be applied to the same assembly processes.

This is achieved on the one hand by the fact that the riot control elements are structurally exceptionally simple realized by insulating tabs which are articulated directly to the links used for the toothed lugs. Advantageously, this makes it possible to dispense with additional components, such as special pegs and special toothed lugs, which carry the riot control elements.

On the other hand, this is achieved in that the insulating tabs have a greater pitch than the toothed plates, whereby the insulating tabs hardly or be loaded in only a negligible extent by tensile forces or the like of the tooth conveyor chain, if desired.

This greater division of the insulating tabs relative to the toothed plates can be achieved, for example, by supporting the insulating tabs with a greater clearance on the connecting members than the toothed tabs. Thus, it can be ensured that, when the chain is loaded in the axial direction, any existing play between the connecting links and the toothed plates has already been exhausted, while the play between the insulating straps and the connecting links would allow a further elongation of the chain. It would also be possible for the insulating straps to be designed in such a way that, although they are pivotably arranged on the connecting links, the connecting links do not hold the insulating straps together in the axial direction so that cohesion is achieved only by the toothed straps.

The insulating tabs could, for example, have openings or holes for passing through the connecting links, which are slightly longer in the axial direction than in a direction perpendicular thereto and thus allow clearance in the axial direction.

Advantageously, the pitch p _{2 of} the insulating tabs by between 0.1% and 5%, preferably between 0.1% and 4%, and preferably by about 3% greater than the pitch p _{1 of} the toothed plates. In this way, the fact may be taken into account that the toothed flanges may expand as a result of prolonged use or by heating.

This is particularly advantageous, since the insulating tabs are ideally made of a ceramic material or an alloy thereof, whereby the mechanical stress capability is much lower than in conventional steel link plates.

Ceramic components are generally much more shock sensitive than comparable steel components and also more expensive to install. In this respect, it is advantageous if the insulating tabs fit well into the shape of the toothed tooth chain in order to be better protected.

It should already be mentioned at this point that the term "insulating tab" describes a single chain element, wherein the present insulating tabs can advantageously be designed especially as insulating toothed tabs and / or as insulating guide tabs.

An insulating tab in the form of an insulating guide tab can take over at least management tasks for lateral stabilization of the present tooth conveyor chain. In this respect, the structure can be further reduced, as can be dispensed with other guide tabs or their number can be at least greatly reduced.

An insulating tab in the form of a Isolierzahnlasche can fit particularly well in a Kettenradgeometrie, which is adapted to the forces and movement-transmitting toothed plates substantially.

In this respect, the term "toothed plate" in the present case describes a single chain element of the present toothed tooth chain, which can be brought into engagement with a corresponding sprocket in a more or less strongly positive-locking manner. The toothed plate is preferably made of a heat-treated and / or high-strength steel in order to be able to withstand relatively high stress forces acting on the toothed tooth chain in the usual way.

On a single one of the connecting links, both the toothed tabs and the insulating tabs are advantageously lined up in the radial direction and thereby secured in the toothed transport chain.

The connecting links can be of various shapes. For example, they can be designed as simple profiled pins or round bolts, which extend transversely to the longitudinal extension of the tooth conveyor chain.

A preferred embodiment, however, provides that the connecting members are designed as two-part weighing elements or rocker joints, by means of which mutually adjacent toothed plates as well as adjacent thereto insulating flaps are hinged together.

Particularly advantageously, the toothed plates and the insulating tabs can be integrated into the present toothed tooth chain, if the insulating tabs are arranged substantially congruent with respect to the radially adjacent toothed plates. In this case, it does not matter if the insulating tabs functionally partly have a different peripheral shape than the toothed plates.

Advantageously, both the toothed plates and the insulating tabs are mounted directly on the connecting links by the connecting links on the one hand penetrate the toothed plates and on the other the insulating tabs.

For this purpose, the toothed plates and the insulating tabs have corresponding material recesses through which the connecting members can be inserted.

A particularly preferred embodiment provides that the transport toothed chain first chain links and adjacently arranged second chain links each comprising at least one toothed tab and at least one Isolierlasche, wherein the first chain links and the second chain links are connected to each other by means of the connecting elements, and wherein the toothed plates and insulating tabs the first chain links are at least partially disposed between the toothed plates and insulating tabs of the second chain links.

In this embodiment, the first chain links each preferably consist of a toothed plate and an insulating tab, which can directly abut each other.

In addition, the second chain links each preferably also consist of a toothed plate and an insulating tab, which, however, are at least spaced apart from one another by a toothed tab and an insulating tab of one of the first chain links in the radial direction.

Such a pairwise alternating arrangement of the individual link plates advantageously makes it extremely easy to constructively realize an insulating contact patch extending over the entire transport chain width.

The term "uprising field" in the sense of the invention designates a functional area of the transport toothed chain, which is characterized by a lower thermal conductivity than, for example, the toothed plates.

Are radially in a row mutually arranged toothed plates and insulating tabs connected to each other by means of a common connecting member of the connecting members, the present transport chain can be made very compact.

A further advantageous embodiment provides that the first and second chain links are at least axially connected to each other by means of a common connecting member of the connecting members, whereby the structure of the tooth conveyor chain can be further particularly simple.

A first particularly preferred embodiment provides that the insulating tabs protrude with a riot plane on the ridge side over a tooth plate plane of the toothed plates.

Advantageously, the insulating tabs in particular a height h ₂ , which is greater than a height h _{1 of} the toothed plates.

As a result, it can be excluded particularly reliable that the heated goods can come into direct contact with the better thermally conductive toothed plates.

If the insulating flaps form an insulating contact patch of the gear tooth chain, which is arranged substantially over the entire width of the gear tooth chain, heated goods can easily be pushed from the side onto the gear chain, without coming into direct contact with the better thermally conductive toothed plates. This is advantageous in particular in combination with the insulating tabs protruding beyond the toothed tab plane.

Another preferred embodiment provides that the insulating tabs are arranged within the toothed toothed chain to an insulating Aufstandsfeld surrounded by the toothed plates, wherein the toothed transport chain comprises in the region of the insulating footprint only insulating flaps comprehensive tabs.

In this embodiment, the insulating tabs can form a particularly dense contact patch, so that even smaller heated goods to be transported can be safely absorbed by the toothed transmission chain.

If the insulating tabs of the insulating contact patch surrounded by the toothed plates are radially spaced from one another by means of spacers, the radial distance between the individual insulating tabs of the contact patch can be set almost as desired.

By means of the toothed tooth chain according to the invention, it is possible to reduce the heat removal from the heated goods to be transported in a structurally extraordinarily simple way, whereby the risk of cracks and thus also of rejects in a very energy-intensive production process can be successfully reduced. In particular, this can increase productivity and conserve resources, save money and increase competitiveness, especially in the glass sector.

Further advantages, objects and features of the present invention will be explained with reference to the appended drawings and the following description in which, by way of example, different toothed tooth chains with rearing elements for heated transport goods, such as glass hollow articles, are shown and described. Components, which in The individual figures at least substantially coincide in terms of their function, can be characterized in this case with the same reference numerals, these components need not be quantified or explained in all figures. In the drawing show:

1 schematically a plan view of a transport tooth chain comprising steel toothed plates with a pitch p ₁ , comprising insulating tabs with a pitch p ₂ and comprising a substantially over the entire transport tooth chain width arranged Aufstandsfeld for heated transport goods;

2 schematically a side view of the tooth conveyor chain from the 1 ;

3 schematically a detailed view of one of the insulating tabs from the 1 and 2 as Isolierzahnlasche;

4 schematically a detailed view of one of the steel toothed tabs from the 1 and 2 ;

5 schematically shows a plan view of another toothed tooth chain comprising steel toothed plates with a pitch p ₁ , comprising insulating tabs with a pitch p ₂ and comprising an uprising field bounded by the steel toothed tabs;

6 schematically a side view of the tooth conveyor chain from the 5 ;

7 schematically a detailed view of an insulating tab from the 5 and 6 as Isolierzahnlasche;

8th schematically a detailed view of an insulating tab from the 5 and 6 as insulating guide tab;

9 schematically a plan view of an alternative transport tooth chain comprising steel toothed plates with a pitch p ₁ , comprising spacer plates spaced by insulating plates with a pitch p ₂ and comprising a limited by the steel tooth tabs Aufstandsfeld;

10 schematically a side view of the tooth conveyor chain from the 9 ; and

11 schematically a side view of another transport tooth chain with a long pitch p ₃ = 2 × ½ "with respect to tooth and guide plates.

In the in the 1 to 4 shown first embodiment comprises a transport toothed chain 1 for transporting heated goods (not shown here) on the one toothed lugs 2 for force and motion transmission with a pitch p ₁ (see in particular 4 ). The toothed plates 2 are made of a heat-treated and / or high-strength steel or material to absorb even high forces and can transmit.

On the other hand, the toothed tooth chain includes 1 insulated joints 3 with a pitch p ₂ and a height h ₂ (see in particular 3 ), the riot elements 4 to make on it the heated goods to be transported. The insulating tabs 3 have a significantly lower thermal conductivity than the toothed plates 2 , The insulating tabs 3 These are made of ceramic, so they have excellent insulation properties.

In addition, the toothed tooth chain includes 1 Connectors 5 for axial and radial connection of the individual toothed plates 2 and insulating tabs 3 , The connecting links 5 extend here transversely to a transport direction 6 into which the toothed tooth chain 1 circulates.

Advantageously, the present pitches p ₁ and p _{2 have} a pitch ratio of p ₁ smaller p ₂ to each other, so forces for force and motion transmission mainly from the toothed plates 2 be picked up and transferred while the insulating tabs 3 due to the larger chosen pitch p ₂ record no or only negligible forces and can transmit.

Furthermore, the transport toothed chain comprises 1 at least two types of chain links 7 and 8th which, however, have both toothed tabs 2 as well as insulating tabs 3 include.

Here, the two different chain links differ 7 and 8th in that at the first chain links 7 one toothed flap each 2 radially, ie in the direction 12 directly on an insulating tab 3 is present and that at the second chain links 8th the respective toothed plates 2 and insulating tabs 3 by means of one of the first chain links 7 are arranged radially spaced from each other.

The present toothed tooth chain 1 is ideally assembled as an endless chain, with the special arrangement of the individual tabs 2 and 3 or the chain links 7 and 8th to each other at the Verzahnzahnkette 1 an insulating insurgency field 10 is created, which is not only completely in the longitudinal direction 11 or the axial direction of the endless tooth conveyor chain 1 but also in the transverse direction 12 or the radial direction over the entire width 13 the transport tooth chain 1 extends.

The insulating insurgency field 10 is particularly easy to realize because the insulating tabs 3 a riot level 14 at the tooth conveyor chain 1 designed, which have a tooth plate plane 15 protrudes. This is achieved in this first embodiment by the insulating tabs 3 have a height h ₂ , which is greater than a height h _{1 of} the toothed plates 2 so that for the heated goods transported over the entire transport tooth chain width 13 uniform transport height is achieved. In this respect, there is a contact between heated goods and the transport toothed chain 1 Reliable only on the insulating tabs 3 instead of.

Otherwise, the toothed plates 2 and the insulating tabs 3 designed substantially the same, in particular with regard to sprocket wheels (not shown here) facing tab outer contour of the toothed plates 2 or the insulating tabs 3 ,

In particular, both types of tabs are suitable for engagement with sprocket wheels, with particular regard to the insulating tabs 3 Variants are also possible, which allow a relief of the Isolierlaschenmaterials constructively simple by contour changes, such as a corresponding edge withdrawal.

While the insulating tabs 3 in this embodiment, therefore, mainly as Isolierzahnlaschen 16 are configured, in particular individual insulating tabs 3 but also as insulation guide straps 17 be designed.

At this point it should be mentioned that the connecting links 5 in this embodiment, two-part weighing elements 20 include.

By means of a connecting member designed in this way 5 are in particular those in a row 21 mutually arranged toothed plates 2 and insulating tabs 3 , but also other tabs, such as the Isolierführungslaschen 17 , connected together. In addition, first and second links are also 7 and by means of the common link 5 both axially and radially interconnected.

cradle elements 20 in use as generic links 5 are well known in the art and thus are readily available, thereby facilitating the manufacture of the sprocket tooth chain 1 is simplified.

It is advantageous on both outer sides of the transport chain in the direction 12 each locking tabs 18 intended. This external as well as tooth or guide tabs ausgestaltbare closure tabs 18 allow in a steel version, a radial closing of the toothed tooth chain 1 by welding, for example by a laser welding process. The closure tabs shown here 18 Among other things, they are characterized by the fact that they only have one recess each for a journal 20A of the weighing element 20 exhibit. The profile holes (not explicitly numbered here) for picking up an additional weighing pin 20B in the behind arranged toothed plates 2 respectively. 3 can be covered with it, with only the journal 20A with the respective locking tab 18 can be welded. Since ceramic can not be welded, in the present case only closure tabs 18 made of metal.

Advantageously, the pairs of alternating arrangement of the present tabs 2 . 3 . 16 respectively. 17 generates a transport surface that can correspond to a commercial toothed chain design with spacers.

In the in the 5 to 8th shown second embodiment is another transport toothed chain 101 shown, which consists essentially of toothed plates 2 , Insulating tabs 3 and two-piece weighing elements 20 comprehensive links 5 consists.

The further toothed tooth chain 101 This time it is characterized by an isolating insurrection field 10 out, in which only insulating tabs 3 are provided. The insulating tabs 3 are within the transport tooth chain 1 to the teeth of the teeth 2 surrounded isolating insurgency field 10 arranged.

This on all sides or in the radial direction 12 of toothed plates 2 surrounded only by insulating tabs 3 existing insulating insurgency field 10 has a width 30 which is smaller than the width 13 the further toothed tooth chain 101 , where the width 30 of the insulating footprint field 10 can be designed variable. The width 30 can advantageously depending on the load situation of the further tooth train 101 and / or be selected from the Transportgutabmessungen.

The insulating tabs 3 can in this second embodiment as Isolierzahnlaschen 16 (please refer 7 ) and / or as insulating guide tabs 17 (please refer 8th ) and they consist of a ceramic, while the toothed plates arranged around it 2 consist of a heat-treated and / or high-strength steel and essentially take over the transmission of forces and movement.

The insulating tabs 3 are preferably characterized by a pitch p ₂ , which is greater than a pitch p _{1 of} the toothed plates 2 , so that the transmission of forces and movement essentially of the toothed plates 2 be taken over.

In this second embodiment, the heights h _{3 of} all tabs 2 . 3 and 16 respectively. 17 equal, so that a lateral pushing on and off of the heated cargo is barrier-free.

The further toothed tooth chain 101 corresponds in terms of their structure in terms of their tightness and surface texture of a commercial toothed chain dense Legart and therefore can advantageously serve as a replacement later.

In the in the 9 and 10 shown third embodiment corresponds to the structure of an alternative transport toothed chain 201 essentially the structure of the toothed toothed chain 101 of the second embodiment. Only are between radially adjacent insulating tabs 3 additional spacers 31 placed, whereby the radial distance ie the distance in the direction 12 between the directly radially adjacent insulating tabs 3 is enlarged.

The in the 11 additionally illustrated toothed tooth chain 301 shows by another tab shape 40 in that further geometric modifications with regard to toothed and / or insulating tabs 2 respectively. 3 are possible, which with a common link 5 are interconnected in the manner already described. Here in this further embodiment, a long pitch p ₃ 2 × ½ "is provided, but the geometric modifications are not limited thereto.

It goes without saying that the exemplary embodiments explained above are only first embodiments of the transport chain according to the invention. In this respect, the embodiment of the invention is not limited to these embodiments.

The Applicant reserves the right to claim all features disclosed in the application documents as essential to the invention, provided they are novel individually or in combination with respect to the prior art.

LIST OF REFERENCE NUMBERS

1

Tooth conveyor chain

2

toothed plates

3

insulated joints

4

standing elements

5

Connectors

6

transport direction

7

first links

8th

second chain links

10

Riot field

11

longitudinal direction

12

transversely

13

width

14

standing plane

15

Toothed flange plane

16

Isolierzahnlaschen

17

Isolierführungslaschen

18

flaps

20

cradle elements

20A

pivot

20B

cradle pin

21

line

30

width

31

spacers

40

Lasch form

101

further toothed tooth chain

201

alternative transport tooth chain

301

Tooth conveyor chain

^p 1

Division of the toothed plates

p ₂

Division of insulating flaps

p ₃

long division

h ₁

Height of the toothed plates

h ₂

Height of insulating tabs

h ₃

Heights of all straps

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 4229055 C2 [0003]

Claims (10)

Toothed tooth chain ( 1 ) for transporting heated goods with a toothed plates having a pitch p ₁ ( 2 ) for force and motion transmission, with connecting links ( 5 ) for connecting the toothed plates ( 2 ) with each other and with uprising elements ( 4 ) for applying the heated transport goods, in which the riot elements ( 4 ) a lower thermal conductivity than the toothed plates ( 2 ), Characterized in that the contact elements ( 4 ) Insulating flaps ( 3 ) with a pitch p ₂ , which at the connecting links ( 5 ) and thus also by means of the connecting links ( 5 ) are axially and radially interconnected, wherein the pitch p _{1 of} the toothed plates ( 2 ) is smaller than the pitch p _{2 of} the insulating tabs ( 3 ). Toothed tooth chain ( 1 ) according to claim 1, characterized in that the connecting links ( 5 ) two-piece weighing elements ( 20 ), by means of which both adjacent toothed plates ( 2 ) as well as adjacent thereto Isolierlaschen ( 3 ) are hinged together. Toothed tooth chain ( 1 ) according to claim 1 or 2, characterized in that radially in a row ( 21 ) to each other arranged toothed plates ( 2 ) and insulating tabs ( 3 ) by means of a common link ( 5 ) of the links ( 5 ) are interconnected. Toothed tooth chain ( 1 ) according to one of claims 1 to 3, characterized in that the toothed toothed chain ( 1 ) first chain links ( 7 ) and adjacently arranged second chain links ( 8th ) each of at least one toothed flap ( 2 ) and at least one insulating tab ( 3 ), wherein the first chain links ( 7 ) and the second chain links ( 8th ) by means of the connecting elements ( 5 ), and wherein the toothed plates ( 2 ) and insulating tabs ( 3 ) of the first chain links ( 7 ) at least partially between the toothed plates ( 2 ) and insulating tabs ( 3 ) of the second chain links ( 8th ) are arranged. Toothed tooth chain ( 1 ) according to claim 4, characterized in that the first chain links ( 7 ) and second chain links ( 8th ) by means of a common link ( 5 ) of the links ( 5 ) are at least axially connected to each other. Toothed tooth chain ( 1 ) according to one of claims 1 to 5, characterized in that the insulating flaps ( 3 ) with a riot level ( 14 ) on the ridge side over a tooth plate plane ( 15 ) of the toothed plates ( 2 ), and the insulating tabs ( 3 ), In particular a height h ₂ have, which is larger than a height h ₁ of the toothed plates ( 2 ). Toothed tooth chain ( 1 ) according to one of claims 1 to 6, characterized in that the insulating flaps ( 3 ) an insulating footprint field ( 10 ) of the toothed tooth chain ( 1 ), which essentially extends over the entire width ( 13 ) of the toothed tooth chain ( 1 ) is arranged. Toothed tooth chain ( 1 ) according to one of claims 1 to 3, characterized in that the insulating flaps ( 3 ) within the toothed tooth chain ( 1 ) to one of the toothed plates ( 2 surrounded by isolated insurgency field ( 10 ), wherein the toothed tooth chain ( 1 ) in the region of the insulating footprint field ( 10 ) only insulating flaps ( 3 ) comprehensive tabs ( 16 . 17 ). Toothed tooth chain ( 1 ) according to claim 8, characterized in that the insulating flaps ( 3 ) to that of the toothed plates ( 2 surrounded by isolated insurgency field ( 10 ) radially by means of spacers ( 31 ) are spaced from each other. Toothed tooth chain ( 1 ) according to one of claims 1 to 9, characterized in that the insulating flaps ( 3 ) Insulating tooth lugs ( 16 ) and / or as insulating guide tabs ( 17 ) are configured.

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