Patent Application
20170112148
The present invention generally relates to equipment used in the baking industry and more particularly, but not by way of limitation, to equipment configured to apply toppings onto baked goods.
For many years, commercial bakeries have utilized assembly-line production to prepare and bake products. In many cases, baked goods are prepared by placing pans onto the assembly line, loading dough into the pans and moving the pans and dough through preparation, cooking and packaging processes. For some products, it is desirable to apply toppings or coatings to the dough before it is cooked. Toppings may include, for example, seeds, flour, oils and butter.
During the commercial baking process, dough is formed into loafs first by separating a large quantity of dough into smaller dough balls. The smaller dough balls are then flattened and then rolled into a relatively hollow roll. The rolled dough is then passed through a “molding” table in which the roll is compressed as it passes on a conveyor under a stationary molding table. Following the molding table, the formed dough loaf is dropped into a pan and conveyed to an oven for baking.
Recently, it has become desirable to “enrobe” toppings onto the dough loaf before the baking process takes place. In a conveyor-driven system, it is known to deposit toppings onto the conveyor behind the dough loaf before it enters the molding table. Once the dough contacts the molding table, the forward travel of the dough loaf is retarded as the dough loaf rotates between the molding table and the conveyor. The toppings deposited onto the conveyor pass under the rotating loaf and the toppings are pressed into the dough.
Although somewhat effective, the current systems for enrobing dough with toppings suffer from two significant drawbacks. First, the sides of the dough loaf are not effectively enrobed with toppings. The toppings deposited onto the horizontal conveyor are not distributed onto the substantially vertical ends of the dough loaf. Second, the molding table must be made relatively long to ensure that the dough loaf passing under the molding table revolves a sufficient number of times to allow for satisfactory deposition of toppings on the dough. It is to this and other deficiencies in the prior art that the preferred embodiments are directed.
In one aspect, the preferred embodiments include a machine for depositing toppings onto a loaf of dough. The machine includes a lower belt assembly, an upper belt assembly and a pair of side belt assemblies. The lower belt assembly includes a lower conveyor belt that rotates in a first direction at a first speed to carry the loaf of dough from an upstream end of the machine to a downstream end of the machine. The upper belt assembly includes an upper conveyor belt that rotates in the first direction. Each of the pair of side belt assemblies includes a side conveyor belt positioned between the lower conveyor belt and the upper conveyor belt.
In another aspect, the preferred embodiments include a machine for depositing toppings onto a loaf of dough, where the machine includes a lower belt assembly, an upper belt assembly opposite the lower belt assembly and a pair of side belt assemblies. Each of the pair of side belt assemblies includes a side conveyor belt positioned between the lower conveyor belt and the upper conveyor belt and wherein at least one of the side conveyor belts includes a non-vertical portion.
In yet another aspect, the preferred embodiments include a machine for depositing toppings onto a loaf of dough, where the machine includes a topping applicator assembly, a lower belt assembly, an upper belt assembly and a pair of side belt assemblies. The lower belt assembly extends below the topping applicator assembly and the upper belt assembly is opposite the lower belt assembly. Each of the pair of side belt assemblies includes a side conveyor belt positioned between the lower conveyor belt and the upper conveyor belt.
Referring to
The dough enrober 100 includes a topping application assembly 104, a lower belt assembly 106, an upper belt assembly 108, side belt assemblies 110, an upper frame assembly 112 and a lower frame assembly 114. The lower frame assembly 114 supports the lower belt assembly 106. The upper frame assembly 112 supports the topping application assembly 104, upper belt assembly 108 and side belt assemblies 110. In a particularly preferred embodiment, the lower frame assembly 114 is supported by a table (not shown). The upper frame assembly 112 includes arms 116 that suspend the topping application assembly 104, upper belt assembly 108 and side belt assemblies 110 above the lower belt assembly 106.
The topping application assembly 104 (shown only in
The topping distributor 120 may include a rotating mandrel that selectively rotates to deposit toppings onto the lower belt assembly 106 and side belt assemblies 110. As illustrated in
The liquid spray assembly 122 includes one or more nozzles 126 that are configured to selectively spray liquid onto the lower belt assembly 106, side belt assemblies 110 and dough loaf (not shown). The liquid spray assembly 122 can be configured to spray water, oil or other liquid-phase ingredients. In a particularly preferred embodiment, liquid spray assembly 122 is configured to spray the dough loaf and the side belt assemblies 110 before the topping distributor 120 is activated to deposit toppings.
In this way, the dough loaf and side belt assemblies 110 are wetted so that they more effectively hold the toppings subsequently released by the topping distributor 120. Thus, in particularly preferred embodiments, the dough enrober 100 detects an approaching dough loaf, activates the liquid spray assembly 122 to wet the dough and side belt assemblies 110 and then activates the topping distributor 120 to deposit toppings onto the dough loaf and side belt assemblies 110 adjacent the dough loaf and onto the lower belt assembly 106 behind the dough loaf.
The lower belt assembly 106 includes a lower conveyor belt 128 that is driven by a lower conveyor belt motor 130. The lower conveyor belt 128 carries the dough loaf through the dough enrober 100. The upper belt assembly 108 includes an upper conveyor belt 132 that is driven by an upper conveyor belt motor 134. The upper belt assembly 108 is positioned over the lower belt assembly 106 at a vertical distance that causes the dough loaf to contact the upper conveyor belt 132 as it rides on the lower conveyor belt 128. Viewed from the side, the upper belt assembly 108 and lower belt assembly 106 are configured to rotate in the same direction (either clockwise or counterclockwise depending on the viewing side). Preferably, the ratio of the speeds of the upper conveyor belt 132 to the lower conveyor belt 128 is less than 1. This configuration produces an increased rotation of the dough loaf as it passes through the enrober 100. This presents an advancement over the use of stationary molding table because the dough loaf can be made to undergo an increased number of revolutions in a shorter distance.
Furthermore, the relative speeds of the lower conveyor belt 128 and upper conveyor belt 132 can be adjusted to increase or decrease the number of revolutions that the dough loaf undergoes while passing through the dough enrober 100. This, in essence, increases or decrease the residence time of the dough loaf in the dough enrober 100, which in turn affects in a directly proportional manner the extent to which toppings are enrobed onto the dough loaf.
Turning to
In a particularly preferred embodiment, the lower edge of each of the side conveyor belts 138 is in contact with the lower conveyor belt 128 and the rotation of each belt is automatically speed-matched to reduce wear between these belts. The lateral adjustment mechanisms 142 allow the two side belt assemblies 110 to be laterally displaced to control the distance between the two opposed side belt assemblies 110. In preferred embodiments, the distance between the two side belt assemblies 110 is selected to be only nominally smaller than the length of the dough loaf approaching the dough enrober 100.
Notably, the belt support assemblies 140 are configured such that the side conveyor belts 138 include a non-vertical portion 144 that twists into a vertical side portion 146, as best seen in
During use, a dough loaf is carried into the upper belt assembly 108 and side belt assemblies 110 by the lower belt assembly 106. As the dough loaf approaches the upper belt assembly 108, the liquid spray assembly 122 sprays a selected liquid onto one or more of the following components: the dough loaf, lower conveyor belt 128 and side conveyor belts 138. The topping distributor 120 then discharges toppings onto the dough loaf, wetted side conveyor belts 138 and a swath of the lower conveyor belt 128 and side conveyor belts 138 behind the dough loaf.
Next, as partially coated dough loaf contacts the upper conveyor belt 132 and side conveyor belts 138, the dough loaf rotates backwards over the toppings deposited on the lower conveyor belt 128 and side conveyor belts 138.
Notably, the dough loaf rotates backwards with a reduced longitudinal travel velocity as the lower conveyor belt 128 and side conveyor belts 138, which are covered with toppings, pass under and around the rotating dough loaf, thereby depositing toppings to all surfaces of the dough loaf to produce a dough loaf that is completely enrobed with toppings. This presents a significant advancement over the prior art by increasing the deposition of toppings onto the dough loaf while reducing the distance required for the enrobing application.
It is clear that the present invention is well adapted to carry out its objectives and attain the ends and advantages mentioned above as well as those inherent therein. While presently preferred embodiments of the invention have been described in varying detail for purposes of disclosure, it will be understood that numerous changes may be made which will readily suggest themselves to those skilled in the art and which are encompassed within the spirit of the invention disclosed herein and as expressed in the appended claims. For example, alternate embodiments may include the use of a parabolic lower conveyor assembly that includes side portions that transition from the horizontal lower portion to the vertical side portions.
The present application claims the benefit of U.S. Provisional Patent Application No. 62/244,631 filed Oct. 21, 2015 entitled, “Dough Enrober with Side Application Belts,” the disclosure of which is herein incorporated by reference.
| Number | Date | Country | |
|---|---|---|---|
| 62244631 | Oct 2015 | US |
