GB2109765A - Conveyor for transporting dough containing pans through a proofing chamber - Google Patents

Conveyor for transporting dough containing pans through a proofing chamber Download PDF

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Publication number
GB2109765A
GB2109765A GB08233649A GB8233649A GB2109765A GB 2109765 A GB2109765 A GB 2109765A GB 08233649 A GB08233649 A GB 08233649A GB 8233649 A GB8233649 A GB 8233649A GB 2109765 A GB2109765 A GB 2109765A
Authority
GB
United Kingdom
Prior art keywords
conveyor
sections
track sections
track
straight
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GB08233649A
Other versions
GB2109765B (en
Inventor
Hardi Adihardjo
Pieter Jan Dorst
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GEFRA BV
Original Assignee
GEFRA BV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by GEFRA BV filed Critical GEFRA BV
Publication of GB2109765A publication Critical patent/GB2109765A/en
Application granted granted Critical
Publication of GB2109765B publication Critical patent/GB2109765B/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B15/00—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form
    • F26B15/26—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in a helical path
    • A—HUMAN NECESSITIES
    • A21—BAKING; EDIBLE DOUGHS
    • A21C—MACHINES OR EQUIPMENT FOR MAKING OR PROCESSING DOUGHS; HANDLING BAKED ARTICLES MADE FROM DOUGH
    • A21C13/00—Provers, i.e. apparatus permitting dough to rise
    • A21C13/02—Provers, i.e. apparatus permitting dough to rise with endless conveyors, e.g. for moving the dough pieces progressively through the prover
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G15/00—Conveyors having endless load-conveying surfaces, i.e. belts and like continuous members, to which tractive effort is transmitted by means other than endless driving elements of similar configuration
    • B65G15/02—Conveyors having endless load-conveying surfaces, i.e. belts and like continuous members, to which tractive effort is transmitted by means other than endless driving elements of similar configuration for conveying in a circular arc
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G21/00—Supporting or protective framework or housings for endless load-carriers or traction elements of belt or chain conveyors
    • B65G21/16—Supporting or protective framework or housings for endless load-carriers or traction elements of belt or chain conveyors for conveyors having endless load-carriers movable in curved paths
    • B65G21/18—Supporting or protective framework or housings for endless load-carriers or traction elements of belt or chain conveyors for conveyors having endless load-carriers movable in curved paths in three-dimensionally curved paths
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G2201/00—Indexing codes relating to handling devices, e.g. conveyors, characterised by the type of product or load being conveyed or handled
    • B65G2201/02—Articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G2207/00—Indexing codes relating to constructional details, configuration and additional features of a handling device, e.g. Conveyors
    • B65G2207/24—Helical or spiral conveying path

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Food Science & Technology (AREA)
  • General Engineering & Computer Science (AREA)
  • Chain Conveyers (AREA)
  • Structure Of Belt Conveyors (AREA)

Abstract

The conveyor comprises two concentric tracks 1, 2, namely an ascending and a descending track, consisting of straight track sections connected by curved track sections. The curved sections 4, 7 and straight sections 3, 6 of both concentric tracks 1, 2 at one side of the conveyor are provided in horizontal planes and the adjacent straight sections 5, 8 at the other side of the conveyor, at least over a part of their length, are inclined in opposite directions in order to bridge the vertical distance between the track sections lying in different horizontal planes. <IMAGE>

Description

SPECIFICATION Conveyor for a proofing chamber The invention relates to a conveyor for transporting dough containing pans through a proofing chamber, said conveyor consisting of two concentric tracks, namely an ascending and a descending track, comprising a number of straight track sections in mutually parallel vertical planes and a number of curved track sections connecting the straight sections with one another, an ascending and a descending track section of at least one system of straight track sections lying in two adjacent vertical planes always being provided next to one another in an almost horizontal plane.
Such a conveyor is known from Dutch patent application 78 00640 laid open to public inspection. In this known conveyor all straight track sections of the ascending and descending tracks are lying in horizontal planes and the curved track sections are inclined, the curved sections of the adcending and of the descending track of course always being inclined in opposite directions.
It is true that it is achieved in this way that the supporting constructions of the straight track sections can be kept simple, but a disadvantage is that this is not the case for the supporting construction of the curved sections, whereas it is precisely there that the curved track of the conveyor exerts great forces.
The reason is that the conveyor usually consists of one chain or a number of chains, the drive of which in particular will take place in the straight track sections, so that in the curves the chains will exert great loads, directed towards the inside, on the supporting construction. According to the invention, a conveyor of the abovedescribed type is characterized in that the curved track sections are lying in the same horizontal planes as the straight track sections of the abovementioned system to which they are connected with one end, and that of the other system of straight track sections the track sections of the ascending and of the descending track, at least over a part of their length, are inclined in opposite directions in order to bridge the vertical distance between the track sections lying above one another in horizontal planes.
According to the invention so one of the straight track sections and the two curved sections connected therewith of both the ascending and of the descending track are lying beside one another in a single horizontal plane and possibly also a part of the straight track sections of the other system may lie in this horizontal plane, so that it is achieved in particular that the supporting construction of the curved sections, which supporting construction is exposed to the greatest loads, can be of simple design.
In most cases it will be preferred, that the ends of the inclined straight track sections are connected directly to the curved track sections.
When the straight track sections are sufficiently long, however, the parts of the straight track sections being connected directly to the curved track sections, can still lie in the same horizontal plans as the curved sections, so that the straight track sections are angled as seen in the vertical plane.
The above will depend on the total length of the straight track sections and on the vertical distance to be bridged.
Nevertheless, in order to keep the loads exerted by the conveyor on the supporting construction as small as possible, it may be provided that the drive of the conveyor takes place at least in those points which lie in the immediate vicinity of the beginning of the curved sections, as seen in the transport direction of the conveyor, in such a way that an as small as possible tensile load is exerted on that part of the conveyor which enters the curve.
As the conveyor, when entering the curve, is exposed to only a small tensile load, namely only such a load that the conveyor remains just taut, also the friction resistance exerted on the conveyor at that place will still be small. This allows the total friction resistance exerted on the conveyor in the curved section, to be kept small, although this friction resistance increases must more strongly than linear, namely according to an e-function. Over a straight track section, however, the friction resistance increases only linear.
In most cases it will therefore suffice to provide a drive at only two places, namely in the abovementioned points, directly near the beginning of the curved sections.
The invention will now be explained further by means of an embodiment, shown in the drawing, in which: Figure 1 schematically shows a top view of a device according to the present invention; Figure 2 schematically shows a section along the line Il-Il of Figure 1; Figure 3 schematically shows a lateral view of the conveyor of Figure 2; Figure 4 schematically shows a section of the line IV--IV of Figure 2, and Figure 5 shows a diagram of the drive method of the chain as seen in the direction of the arrow V in Figure 4.
The conveyor T shown in the drawing comprises an ascending track 1 and within this a descending track 2. The ascending track 1 consists of straight sections 3, lying in horizontal planes, of curved sections 4 connected therewith and always lying in the same horizontal plane as the straight section 3 with which they are connected, whereas to the other end of the curved sections 4 straight, but ascending sections 5 are connected. These sections 5 assure the connection between two tracks lying in two subsequent horizontal planes.
The descending track 2 of the conveyor T consists of the straight sections 6, which lie next to the sections 3 of the ascending conveyor and in the same horizontal planes. The same applies to the curved sections 7, whereas the other ends of the curved sections 7 are connected with descending straight sections 8.
As appears in particular from Figure 2 only the straight track section 5 and 8 are lying in different inclined planes, whereas all further sections of the ascending and of the descending tracks are lying in the same horizontal planes.
Figure 4 shows the possibility to provide a switch 9 in two straight track sections lying next to one another, e.g. about half-way the total length of the ascending and of the descending track sections. This switch 9 assures that the dough pans present on the ascending track are slid onto the descending track so that the dough pans stay in the proofing chamber for only about half the normal time. The dough pans then approximately follow the path indicated by the arrow P. It will be obvious that the switch can be switched from the position as shown in the direction of the arrow R towards the non-active position.
As said above, it is not absolutely necessary that the ascending and descending track sections 5 and 8 respectively, are connected directly to the ends of the curved sections 4 and 7 respectively.
It is also possible to give the track sections 5 and 8 an angled shape so that to a curved section first a straight horizontal section is connected, which then merges into the inclined section.
Figure 4 also shows that a single motor 10, by means of transmission 11, can assure the drive of the conveyor on different levels immediately before the beginning of a curved track section.
'Generally speaking the conveyor will consist of one single chain, the links of which are provided with wide flat horizontal parts, on which the dough pans can be placed.
In practice the chain will not continuously follow the indicated path, as this would lead to undesirables loads on the chain and on the drive devices. As said above, it is desirable that at the beginning of a curved section the tensile load on the chain is as small as possible and this is achieved in the way as shown in Figure 5 of the drawing.
As appears from Figure 5 the chain 12 forming part of the conveyor T, is guided in the transport direction over a chain wheel 13, being driven by the motor 10 and the transmission 11, which chain wheel 13 therefore assures that the chain is pulled over the straight section 3 or 6 and over the preceding curved section 4 or 7.
The chain 12 then runs over a wheel 14, which keeps the chain 12 taut by means of the spring mounted support 15. From the wheel 14 the chain 12 runs along the fixedly mounted curved guiding plate 16 and then over the idle guiding wheel 1 7.
The transport direction of the chain 12 is indicated by the arrows S, on the wheel 14 a spring force being exerted in the direction of the arrow V. The pulling force exerted by the springmounted support 1 5 has to be only so great, that the chain 12 remains taut, so that also the load exerted on the chain 12 by the driven wheel 13 is small as possible and the power delivered by the driving motor 10 can be kept low.
By an arrangement of the driven wheel 13 and the guiding wheels 14 and 17 with the guiding plate 1 6 as shown in Figure 5, the construction height of the conveyor can be kept as small as possible, as the lowest point of the chain will not be much below the lowest point of the wheel 13.

Claims (6)

Claims
1. Conveyor for transporting dough containing pans through a proofing chamber, said conveyor consisting of two concentric tracks, namely an ascending and a descending track comprising a number of straight and a number of curved track sections connecting the straight sections with one another, an ascending and a descending track section of at least one system of stright track sections lying in two adjacent vertical planes always being provided next to one another in an almost horizontal plane, characterized in that the curved track sections are lying in the same horizontal planes as the stright track sections of the above-mentioned system to which they are connected with one end, and that of the other system of straight track sections the track sections of the ascending and of the descending tracks at least over a part of their length are inclined in opposite directions in order to bridge the vertical distance between the track sections lying above one another in horizontal planes.
2. Conveyor according to claim 1, characterized in that the ends of the inclined straight track sections are connected directly to the curved track sections.
3. Conveyor according to claims 1 or 2, characterized in that the drive of the conveyor takes place at least in those points which lie in the immediate vicinity of the beginning of the curved sections, as seen in the transport direction of the conveyor, in such a way that an as small as possible tensile load is exerted on that part of the conveyor which enters the curve.
4. conveyor according to claim 3, characterized in that the conveyor, before entering the curve, runs over a driven wheel over an angle of at least 1800, then over an idle guiding wheel over an angle of at least 1800, on the support of each wheel a spring-force being exerted so that the conveyor is kept taut, the conveyor running from the latter wheel over a subsequent idle guiding wheel, in such a way that the conveyor will get into its origunal transport path again.
5. Conveyor according to claim 4, characterized in that the conveyor is guided between the two idle guiding wheels by means of a fixedly mounted guiding plate.
6. Conveyor as described and/or shown in the drawing.
GB08233649A 1981-11-25 1982-11-25 Conveyor for transporting dough containing pans through a proofing chamber Expired GB2109765B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL8105328A NL8105328A (en) 1981-11-25 1981-11-25 TRANSPORTER FOR NARIS CABINET.

Publications (2)

Publication Number Publication Date
GB2109765A true GB2109765A (en) 1983-06-08
GB2109765B GB2109765B (en) 1985-07-17

Family

ID=19838445

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08233649A Expired GB2109765B (en) 1981-11-25 1982-11-25 Conveyor for transporting dough containing pans through a proofing chamber

Country Status (6)

Country Link
JP (1) JPS5895011A (en)
BE (1) BE895115A (en)
DE (1) DE3243327A1 (en)
FR (1) FR2516750A1 (en)
GB (1) GB2109765B (en)
NL (1) NL8105328A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0558151A1 (en) * 1992-02-26 1993-09-01 Tetra Laval Food Koppens B.V. Oven
NL2002100C (en) * 2008-10-15 2010-04-16 Specialty Conveyor Bv A buffer conveyor having parallel tracks.
US8302763B2 (en) 2007-05-07 2012-11-06 Specialty Conveyor B.V. Apparatus and method for buffering products
US8328004B2 (en) 2006-12-22 2012-12-11 Specialty Conveyor B.V. Conveyor system

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107741145A (en) * 2017-10-25 2018-02-27 山东省潍坊市省工食品机械科技有限公司 Minor radius is dried in the air Spiral tower processed
JP7283018B2 (en) * 2021-03-01 2023-05-30 トーヨーカネツ株式会社 Conveyor equipment
CN113483534B (en) * 2021-09-03 2021-11-05 南通市恒达机械制造有限公司 Movable tunnel kiln drying system

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB119300A (en) * 1917-10-09 1918-10-03 Laurence Embrey Improvements in Dough Proving Apparatus.
BE759969A (en) * 1969-12-07 1971-06-07 Ex K Bjuro DEVICE FOR DRYING SHEET MATERIALS
NL7800640A (en) * 1977-03-08 1979-06-11 Capelleveen Bv Geb TRANSPORTER, ESPECIALLY FOR A NARIJSBOX.

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0558151A1 (en) * 1992-02-26 1993-09-01 Tetra Laval Food Koppens B.V. Oven
US5329916A (en) * 1992-02-26 1994-07-19 Koppens Machinefabriek B.V. Oven
US8328004B2 (en) 2006-12-22 2012-12-11 Specialty Conveyor B.V. Conveyor system
US8662288B2 (en) 2006-12-22 2014-03-04 Specialty Conveyor B.V. Conveyor system
US8851273B2 (en) 2006-12-22 2014-10-07 Specialty Conveyor B.V. Conveyor system
US8302763B2 (en) 2007-05-07 2012-11-06 Specialty Conveyor B.V. Apparatus and method for buffering products
NL2002100C (en) * 2008-10-15 2010-04-16 Specialty Conveyor Bv A buffer conveyor having parallel tracks.
WO2010043692A1 (en) * 2008-10-15 2010-04-22 Specialty Conveyor B.V. A buffer conveyor having parallel tracks
US20110259711A1 (en) * 2008-10-15 2011-10-27 Lijesa Developments Pty Ltd Buffer conveyor having parallel tracks
EP2727862A1 (en) * 2008-10-15 2014-05-07 Specialty Conveyor B.V. A buffer conveyor having parallel tracks
US9181041B2 (en) 2008-10-15 2015-11-10 Specialty Conveyor B.V. Buffer conveyor having parallel tracks
US9630785B2 (en) 2008-10-15 2017-04-25 Specialty Conveyor B.V. Buffer conveyor having parallel tracks

Also Published As

Publication number Publication date
FR2516750B1 (en) 1984-08-10
DE3243327A1 (en) 1983-07-07
NL8105328A (en) 1983-06-16
JPS5895011A (en) 1983-06-06
FR2516750A1 (en) 1983-05-27
BE895115A (en) 1983-03-16
GB2109765B (en) 1985-07-17

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee