CN101415333A - Conveyor oven with energy saving baffle mechanism and method - Google Patents
Conveyor oven with energy saving baffle mechanism and method Download PDFInfo
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- CN101415333A CN101415333A CNA2004800374004A CN200480037400A CN101415333A CN 101415333 A CN101415333 A CN 101415333A CN A2004800374004 A CNA2004800374004 A CN A2004800374004A CN 200480037400 A CN200480037400 A CN 200480037400A CN 101415333 A CN101415333 A CN 101415333A
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- baffle plate
- opening
- conveyor oven
- burner hearth
- food
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Abstract
The invention relates to a conveyor oven with improved energy efficiency. The energy efficiency is achieved by providing baffles at an inlet and an outlet of the conveyor oven. The baffles are individually controlled to be closed during cooking operations except for the time required for the passage of a food product through the respective inlet and outlet. The baffles can be operated manually or by electrically driven devices such as solenoids or electric motors. A controller can be used to control the open and closed times of the baffles based on sensor inputs as well as the speed of the conveyor, a predetermined length of the oven cavity between the inlet and outlet and a size of the food product.
Description
Technical field
The present invention relates to a kind of conveyor oven (conveyor oven) and method with energy saving baffle mechanism.
Background technology
Conveyor oven is usually along the food of baking channel on transmission conveyer between the entrance and exit.Can in stove, overflow by entrance and exit along the heat that baking channel provides.The heat of loss can have a strong impact on the thermal efficiency of stove.
Thereby needs reduce the heat loss of conveyor oven.
Summary of the invention
Conveyor oven of the present invention comprises the burner hearth with at least one opening.Conveyer is arranged to extend in the burner hearth via described opening.Thermal source provides heat in burner hearth.Be provided with baffle plate in described opening, this baffle plate can be operated between closed position and open position.Compare when being shown in an open position with baffle plate, when baffle plate was in the closed position, burner hearth reduced via the heat loss of opening.
In conveyor oven of the present invention, described opening is at least one in the entrance and exit.
Conveyor oven of the present invention preferably includes frame unit, and wherein, baffle plate is operably connected on the described frame unit.In one embodiment, this frame unit preferably includes a pair of isolated pin that is positioned at the opening top.Baffle plate comprises the vertical slit that a pair of and described pin matches.Baffle plate and pin slide on the whole length of described slit.
Preferably, the required time, controller control baffle plate is in the closed position, thereby heat loss is dropped to minimum by opening for the food on conveyer.Baffle plate also comprises module, and this module comprises the driver element that the control baffle plate moves between open position and closed position.Controller controls with respect to the predetermined length of the speed of the position of opening, conveyer and burner hearth based on food that baffle plate is shown in an open position and the closed position.
Preferably, driver element is selected from gear and the chain and sprocket driving device and the magnetic valve of motor, linear actuators, machinery.In addition, driver element only the food on conveyer in the required time baffle plate is shown in an open position by opening.
Preferably, described module also comprises sensor, with at least a situation in any combination of the baffle plate that detects food, the baffle plate of opening, the baffle plate of closing and the baffle plate of opening and close.Module also is included in the mechanical linkage (linkage) that opens and closes moving stop between the position.
In another embodiment of conveyor oven of the present invention, this conveyor oven also comprises mechanical linkage, and this mechanical linkage comprises guide rail, slide block and one or more connecting rod.Electric driver via in the described connecting rod at least one along the guide rail moving slider.Baffle plate links to each other with slide block via another connecting rod, so that follow the motion of slide block.
Method control conveyor oven of the present invention, this conveyor oven comprises the burner hearth with at least one opening and passes the conveyer that this opening extends.Described method is included in heat energy is provided in the burner hearth, and covers opening with baffle plate in baking operating period in food is in burner hearth the time.Compare when being shown in an open position with baffle plate, when baffle plate was in the closed position, burner hearth reduced via the heat loss of opening.
The drive unit drives baffle plate makes it between open position and closed position, thereby opens opening respectively and cover opening.
In the alternative embodiment of method of the present invention, control with respect to the predetermined length of the speed of the position of opening, conveyer and burner hearth according to food that baffle plate is shown in an open position and the closed position.
Description of drawings
By with reference to below in conjunction with the description of the drawings, will be understood that other and further purpose, advantage and feature of the present invention, the identical identical structural detail of reference symbol indication in the accompanying drawing, and
Fig. 1 is the front view of block diagram form of an embodiment of conveyor oven of the present invention;
Fig. 2 is the perspective view of another embodiment of conveyor oven of the present invention;
Fig. 3 is the perspective view of the enlarging section 3 of the conveyor oven among Fig. 2;
Fig. 4 is the perspective view of the baffle mechanism among Fig. 3;
Fig. 5 is the perspective view of another embodiment of conveyor oven of the present invention;
Fig. 6 is the perspective view of the enlarging section 6 of Fig. 5;
Fig. 7 is the side view of the baffle mechanism of the conveyor oven among Fig. 5; And
Fig. 8 is the front view of the baffle mechanism of the conveyor oven among Fig. 5.
The specific embodiment
With reference to figure 1, conveyor oven 20 of the present invention comprises the burner hearth 28 with outlet 22 and inlet 24.Conveyer 26 is arranged to transmit food along the direction shown in the arrow 27, and food enters burner hearth 28 via inlet 24 and leaves via outlet 22.Module 32 and module 30 are respectively adjacent to inlet 24 and outlet 22.In the embodiment shown in fig. 1, module 30 and 32 is installed in the top of conveyer 26.Baffle plate 34 and 36 is mechanically connected to respectively on module 30 and 32.Controller 42 is electrically connected on module 30 and 32.Baffle plate 34 and module 30 constitute baffle mechanism, and baffle plate 36 and module 32 constitute baffle mechanism.
Be provided with suitable thermal source,, toast them when on conveyer 26, passing burner hearth 28 with convenient food in burner hearth 28, to provide heat.For example, fan case 44 and one or more forced ventilation system (plenum) 46 and 48 are arranged to be communicated with burner hearth 28 fluids so that hot-air comprise fan case 44, forced ventilation system 46 and 48 and the passage of one or more air loop (not shown) in circulate.50 pairs of circulating airs of heater that can be positioned at fan case 44 heat.Forced ventilation system 46 and 48 can be designed to provide the impinging air post towards conveyer 26.Alternatively, or in addition, the similar forced ventilation system that is communicated with fan case 44 and burner hearth 28 fluids can be set below conveyer 26.Alternatively, or in addition, can above the conveyer 26 and/or below pharoid (for example infrared heater) is set.
With reference to figure 2-4, the alternative embodiment of conveyor oven of the present invention comprises baffle mechanism, and described baffle mechanism comprises the baffle plate 60 at inlet 24 places that are arranged on conveyor oven 20.Identical baffle mechanism (not shown) is positioned at the opposite end or the exit of conveyor oven 20.With reference to figure 3 and Fig. 4, baffle plate 60 comprises long shaped plate, and described long shaped plate has one and is positioned near the otch 66 of a vertical edge and is positioned near another otch 68 of relative vertical edge.The shape of baffle plate 60 and otch 66 and 68 are set to be convenient to stride across conveyor oven 20 above conveyer 26 inlet 24 manually rises and falls baffle plate 60.For this reason, the frame unit 62 of conveyor oven 20 comprises a pair of flatly isolated pin 64, so that match with the otch 66 and 68 of baffle plate 60.
Otch 66 and 68 includes vertical slit 70, described vertical slit with link to each other with 76 along the isolated vertically a plurality of recess of vertical slit 70 72,74.The structure of slit 70 and recess 72,74 and 76 makes baffle plate 60 not need to take off fully from frame unit 62 just removable.So just do not need baffle plate 60 is fastened on the frame unit 62.Can baffle plate 60 be moved and shift-in and shift out recess 72,74 or 76 flatly vertically along slit 70 by general tool or with hand, wherein, have the high hot guard member of hand on hand.When pin 64 was in uppermost groove 72, baffle plate 60 is positioned to be fallen or the closed position, and described position is an energy savings position.For baffle plate 60 is transformed into the position of rising fully or opening, can catch the flange 78 of baffle plate 60 to come moving stop 60 manually.Baffle plate 60 at first rises, and horizontal slip then is in the slit 70 so that sell 64.Then, baffle plate 60 rises by sliding vertically along slit 70, arrives the height of pin 64 up to recess 76.When this position, food can freely enter burner hearth 28.In order to return energy savings position, flatly moving stop 60, are in the slit 70 up to pin 64, and baffle plate 60 arrives the height of pin 64 vertically to lower slider up to recess 72 then.Then, baffle plate 60 flatly moves, and is in the recess 72 up to pin 64.For highly lower food, intermediate recesses 74 can make baffle plate 60 partially open.To one skilled in the art, obviously additional intermediate recesses can be set, to adapt to the food of multiple differing heights.
With reference to figure 5-8, another alternative embodiment of baffle mechanism of the present invention comprises the baffle mechanism 90 at inlet 24 places that are arranged on conveyor oven 20.Identical baffle mechanism (not shown) is positioned at the opposite end or the exit of conveyor oven 20.Baffle mechanism 90 comprises module 92 and baffle plate 94.Module 92 is mechanically connected on the baffle plate 94, and moving stop 94 between lower or closed position and higher or open position operatively.Module 92 comprises driver element, and described driver element is depicted as operatively driving device linkage rise and falls the motor 100 of baffle plate 94.The actuating arm 106 that described mechanical linkage comprises connecting rod 102, connecting rod 104 and is configured to move up and down along guide rail 96.Slide block is arranged in the guide rail 96 and slides up and down, and is connected on the actuating arm 106, and is connected to connecting rod 104 by connecting rod 102.Actuating arm 106 also is fixed on the baffle plate 94.Motor 100 is connected on the connecting rod 104 by sleeve 108.When the linkage of motor 100 drive link 104 and 102, actuating arm 106 and slide block 98 just move up and down along guide rail 96, move between closed position and open position thereby drive baffle plate 94.Magnet 110 sends baffle plate 94 jointly with the hall effect sensor (not shown) and is in rise fully or falls the signal of position fully, and described signal is used to control motor 100.
Motor 100 can be started by multiple mode.Can use simple switch (not shown) starting and close motor 100 and rise or fall baffle plate 94.Use the more complicated method of one or more microprocessors can have the algorithm of sensor or logic-based, with energy-conservation under unmanned situation of interfering.This method can provide the energy saving of optimization, because system does not need incident is explained separately to determine the most effective opportunity of starting system.
Conveyor oven of the present invention has improved the thermal efficiency by provide access baffle plate and outlet damper, opens and closes based on the described baffle plate of the Position Control of the food on the conveyer.Process controller is in response to noncontacting proximity sensor 39 and 40 and calculate the opportunity that baffle plate opens and closes based on the speed of conveyer.
Though specifically invention has been described with reference to preferred form, obviously can under the situation that does not break away from the appended the spirit and scope of the present invention that claim limited, make various changes and modification.
Claims (16)
1. conveyor oven comprises:
Burner hearth with at least one opening;
Extend into the conveyer of described burner hearth via described opening;
The thermal source of heat energy is provided in described burner hearth; And
In described opening and the baffle plate that can between closed position and open position, operate, and when being in described open position, described baffle plate compares, when described baffle plate was in described closed position, described burner hearth reduced via the heat loss of described opening.
2. conveyor oven as claimed in claim 1 is characterized in that, described opening is at least one in the entrance and exit.
3. conveyor oven as claimed in claim 1 is characterized in that described open hearth also comprises frame unit; Described baffle plate is operatively coupled on the described frame unit.
4. conveyor oven as claimed in claim 3 is characterized in that, described frame unit comprises a pair of isolated pin that is positioned at described opening top; Described baffle plate comprises the vertical slit that a pair of and described pin matches; Described baffle plate and pin slide on the whole length of described slit.
5. conveyor oven as claimed in claim 1 is characterized in that described open hearth also comprises controller, and the required time, control described baffle plate and be in described closed position by described controller by described opening for the food on described conveyer.
6. conveyor oven as claimed in claim 5 is characterized in that described baffle plate also comprises the driver element that drives described baffle plate; Described controller is controlled described driver element.
7. conveyor oven as claimed in claim 5 is characterized in that, described controller is controlled described baffle plate based on described food with respect to the predetermined length of the speed of the position of described opening, described conveyer and described burner hearth and is in described opening and closing position.
8. conveyor oven as claimed in claim 1 is characterized in that described baffle plate also comprises module, and this module comprises the driver element that the described baffle plate of control moves between open position and closed position.
9. conveyor oven as claimed in claim 8 is characterized in that, described driver element is selected from gear and the chain and sprocket driving device and the magnetic valve of motor, linear actuators, machinery.
10. conveyor oven as claimed in claim 8 is characterized in that, only in the required time, described driver element just makes described baffle plate be in described open position to the food on described conveyer by described opening.
11. conveyor oven as claimed in claim 8 is characterized in that, described module also comprises sensor, with at least a situation in any combination of the baffle plate that detects food, the baffle plate of opening, the baffle plate of closing and the baffle plate of opening and close.
12. conveyor oven as claimed in claim 8 is characterized in that, described module also is included in the mechanical linkage that moves described baffle plate between the described opening and closing position.
13. conveyor oven as claimed in claim 12 is characterized in that, described mechanical linkage comprises guide rail, slide block and one or more connecting rod; Described driver element moves described slide block via in the described connecting rod at least one along described guide rail; Described baffle plate links to each other with described slide block via in the described connecting rod another, so that follow the motion of described slide block.
14. a method of controlling conveyor oven, wherein, described conveyor oven comprises the burner hearth with at least one opening and passes the conveyer that described opening extends that described method comprises:
In described burner hearth, provide heat energy; And
In baking operating period, cover described opening with baffle plate in the time of in food is in described burner hearth, and when being shown in an open position, described baffle plate compares, when described baffle plate was in the closed position, described burner hearth was via the heat loss reduction of described opening.
15. method as claimed in claim 14 is characterized in that, this method also comprises: use the described baffle plate of drive unit drives, make it between described open position and the described closed position, thereby open described opening respectively and cover described opening.
16. method as claimed in claim 15 is characterized in that, controls described baffle plate based on described food with respect to the predetermined length of the speed of the position of described opening, described conveyer and described burner hearth and is in described opening and closing position.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US52319903P | 2003-11-18 | 2003-11-18 | |
US60/523,199 | 2003-11-18 | ||
US60/612,718 | 2004-09-24 |
Publications (1)
Publication Number | Publication Date |
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CN101415333A true CN101415333A (en) | 2009-04-22 |
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Application Number | Title | Priority Date | Filing Date |
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CNA2004800374004A Pending CN101415333A (en) | 2003-11-18 | 2004-11-18 | Conveyor oven with energy saving baffle mechanism and method |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107549590A (en) * | 2017-08-21 | 2018-01-09 | 许昌锦荣食品有限公司 | A kind of food processing drying unit |
-
2004
- 2004-11-18 CN CNA2004800374004A patent/CN101415333A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107549590A (en) * | 2017-08-21 | 2018-01-09 | 许昌锦荣食品有限公司 | A kind of food processing drying unit |
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Open date: 20090422 |