RU97246U1 - ROTARY BAKING CABINET - Google Patents

Abstract

 A rotary bakery cabinet, consisting of a housing in which an internal frame is installed that forms a working chamber in which electric motors with fans are located, heating elements closed by a partition, a rotary frame with a rotation mechanism in the base, containing a rotation axis, a spring and a ball, the rotation mechanism being a latch for a trolley, a water supply unit, a door, a control panel, an exhaust hood, characterized in that the cabinet structure is collapsible, said rotation mechanism further comprises a stop and kan mounted coaxially in each other, and the base of the inner frame and the base frame are made rotatable on the same level.

Description

The utility model relates to kitchen heating equipment, namely, to baking ovens and is intended for the automatic baking of bakery and confectionery products at public catering facilities both independently and as part of a technological line.

Known rotary bakery "Rotor-Agro 202" LLC "Tagro", Rostov, consisting of a housing in which an internal frame is installed, forming a working chamber. In the working chamber there are electric motors with fans, heating elements, closed by a partition. A rotary frame with a rotation mechanism at the base, which is a latch for the trolley, is also installed there. The cabinet also contains a water supply unit, a door, a control panel and an exhaust hood.

Also known is a rotary bakery cabinet "Monsoon-rotor-55" ZAO NPP FIRM "VOSKHOD", Saratov, the closest in technical essence and taken by us as a prototype, consisting of a housing in which an internal frame is installed that forms a working chamber in which placed electric motors with fans, heating elements closed by a partition, a rotary frame with a rotation mechanism in the base, containing a rotation axis, a spring and a ball, the rotation mechanism being a lock for a cart, water supply unit, door, control panel, exhaust hood .

A disadvantage of the known rotary bakery cabinets is that they have an all-welded construction, which creates inconvenience during transportation and takes up a lot of space when stored in warehouses.

Another disadvantage is that the rotation mechanism of the rotary frame has a rotation bearing, which complicates the design of the rotation mechanism.

And when baking, increased humidity is created in the working chamber, which negatively affects the operation of the bearing (corrosion appears, smoothness of rotation of the frame worsens). Furnace maintenance is also complicated (bearing cleaning and lubrication).

Also, in known ovens, the base of the inner frame and the base of the rotary frame are made at different levels, which reduces the quality of baking, because when rolling the trolley into the working chamber with baking blanks and installing it on the rotary frame, the test is shaken and sedimented.

The technical result of the utility model is to create a compact during transportation and storage of the product, simplifying the design and maintenance of the oven, as well as improving the quality of baking.

The technical result is achieved by the fact that in a known rotary bakery cabinet, consisting of a housing in which an internal frame is installed that forms a working chamber, in which electric motors with fans are located, heating elements closed by a partition, a rotary frame with a rotation mechanism in the base containing the axis of rotation, a spring and a ball, the rotation mechanism being a lock for the trolley, water supply unit, door, control panel, exhaust hood, the cabinet structure is dismountable, the said rotation mechanism I additionally contains an emphasis and a glass mounted coaxially in each other, and the base of the inner frame and the base of the rotary frame are made at the same level.

The essence of the utility model lies in the fact that the cabinet design is collapsible, the rotation mechanism additionally contains an emphasis and a cup mounted coaxially in each other, and the base of the inner frame and the base of the rotary frame are made at the same level, which allowed to create a compact during transportation and storage product, simplify the design and maintenance of the oven, as well as improve the quality of baking.

The accompanying drawings show the proposed rotary bakery cabinet, where:

figure 1 is a General front view with the door open;

figure 2 is a side view;

figure 3 - diagram of the disassembly-assembly;

figure 4 - cabinet, without door;

figure 5 - the inner frame;

figure 6 - node water supply;

Fig.7 is a section aa in Fig.6;

on Fig - shows the base of the inner frame and the rotary frame;

figure 9 is a front view without a door;

figure 10 is a section bB in figure 9;

11 - shows the location of the fans on the left side wall of the inner frame;

in Fig.12 - section bb in Fig.11, which shows the following notation:

1 - housing;

2 - housing base;

3 - housing roof;

4 - door;

5 - control panel;

6 - exhaust hood;

7 - gear;

8 - side wall of the housing;

9 - rack of the case;

10 - rear wall of the housing;

11 - corner wall;

12 - outer wall;

13 - outer wall;

14 - inner frame;

15 - the base of the inner frame;

16 - the roof of the inner frame;

17 - side wall of the left inner frame;

18 - side wall of the right inner frame;

19 - rear wall of the inner frame;

20 - corner wall of the inner frame;

21 - a partition;

22 - a sealant, clamps of a sealant;

23 - frame;

24 - rotary frame;

25 - rotary frame shaft;

26 - adjusting screw;

27 - electric motors with fans;

28 - heating elements;

29 - a working chamber;

30 - nozzle;

31 - axis of rotation at the base;

32 - threshold;

33 - spring;

34 - ball;

35 - emphasis;

36 - a glass;

37 - a spray;

38 - water supply pipe;

39 - trolley;

40 - the base of the rotary frame;

41 - cap.

A rotary bakery cabinet (hereinafter referred to as an oven) consists of a housing 1 comprising a base 2, a roof 3, side walls 8, racks 9, a rear wall 10, corner walls 11, outer walls 12 and 13, a control panel 5, door 4 (Fig. 3 ) A gearbox 7 is mounted on the roof 3 for rotating the rotary frame 24. An internal frame 14 (Fig. 5) is installed in the housing 1, forming a working chamber 29. The internal frame 14 consists of a base 15, a roof 16, a side wall 17 left, a side wall 18 , the walls of the back 19, the walls of the angular 20 (figure 3). Inside the working chamber 29, two electric motors with fans 27 are installed, closed by a partition 21. Fans provide air circulation in the working chamber. Tubular electric heaters (hereinafter referred to as heating elements) 28 are installed around the fans 27 and are also closed by a partition 21. Inside the chamber there is a rotating frame — a rotary frame 24 with a shaft 25 and a rotation axis 31 at the base 40. The frame drive is located outside in the upper part of the furnace (not shown in the drawing ) The inner frame also contains a seal, the clamps of the seal 22 and the frame 23. The rotary frame 24 is used to install on it a 16-level stud-cart 39 with heat-resistant supports. At the base 15 of the working chamber 29 there is a drain to remove excess moisture, brought forward under the threshold 32 (not shown).

The rotation mechanism of the rotary frame 24 consists of a stop 35 and a cup 36, mounted in each other coaxially, the axis of rotation 31, the spring 33, the ball 34 and the cap 41 (figure 10). The emphasis 35 is made of bronze, which ensures smooth rotation of the frame rotary 24.

The base of the inner frame 15 and the base of the rotary frame 40 are made at the same level, which allows you to place the trolley 39 in the working chamber 29 with less effort and eliminates the possibility of shaking and settling of the dough.

Oven operation control - changing operating modes and baking parameters is carried out from the control panel 5 mounted on the front surface of the furnace body.

For ventilation of the working chamber 29 (connecting it with the external environment) is an exhaust hood 6 mounted above the oven door.

The injection of finely atomized water into the working chamber 29 on the upper and lower fans 27 is carried out through nozzles 30 of water supply units (each fan has its own unit), consisting of a tube 38, a sprayer 37 and a nozzle 30 (Figs. 6 and 7). Additional spraying of water is carried out by fans 27.

To protect against overheating (in emergency situations), an emergency thermal switch is installed at 320 ° C (behind the control panel), the sensor of which is located in the working chamber. The emergency thermal switch is used to turn off the heating elements and motors (fans, rotary frame drive) when the temperature in the working chamber reaches 320 ° C.

The temperature in the working chamber of the furnace is automatically adjusted according to positional law, i.e. when the temperature reaches the set value, the heating elements are switched off.

The oven uses a classic air convection pattern. Fans suck in air from the working chamber, which under pressure passes through the heating elements, where it is heated, and then fed back into the working chamber. In the working chamber, the heat of hot air is transferred to the dough pieces, which are located on baking sheets mounted on a rack trolley. Thus, a constantly heated stream of hot air circulates in a furnace along a certain path.

A rotary bakery oven bakes bakery and confectionery products according to predetermined parameters (temperature in the chamber, frequency and duration of water injection, cooking time).

Automation provides the rotation of the baking oven in five modes.

“Warming up” - is intended for heating the working chamber to the setpoint temperature (set temperature) and maintaining it before starting cooking.

“Convection” - the mode is intended for baking by blowing with hot dry air for a predetermined time.

“Convection + steam - 1 sec.”, “Convection + steam - 3 sec.”, “Convection + steam - 5 sec.” (Combined modes): these three modes are intended for baking by blowing with hot air of a certain humidity. Humidity is controlled by changing the duration of water injection and changing the frequency of injection. The numbers in the name of the modes indicate the duration of the injection of water into the working chamber.

The mode is selected by pressing the corresponding button (not shown in the drawing).

The design of the rotary bakery cabinet is collapsible.

All elements of the furnace, except for the rear wall of the housing 10 (galvanization), are made of stainless steel.

The cabinet is assembled as follows.

Using the adjustment screws 26, the horizontal position of the base 2 is set. The base of the inner frame 15 is fastened to it and the walls 20, 17, 19, 18 and the roof of the inner frame 16 are installed. All joints of the inner frame are coated with high-temperature sealant during assembly.

Before installing the roof 3, it is necessary to install the frame 23, tightening it with bolts with the inner frame 14, the outer walls 12, 13 and the clamps of the seal 22.

After installing the roof 3, the rotary frame 24 is installed. To do this, it is necessary to unscrew the rotary frame shaft 25 and gear 7. To prevent skewing, the frame must be installed on the rotation axis in the base 31, after installation, the gear shaft 7 and the rotary frame shaft 25 must be combined using two coupling halves . Secure gearbox 7 and frame shaft 25.

Next, they connect an electrician and install a control panel 5, racks 9 and corner walls 11. Fasten the side walls 8 and hang the door 4.

Before installing the protective wall 21 around the perimeter of the inner frame 14, the joint of the parts is re-coated with a high-temperature sealant.

The advantage of the proposed rotary bakery cabinet is that its design is collapsible, which allows you to make disassembled nodes in standard doorways

The oven provides baking a wide range of bakery and confectionery products of excellent quality without reconfiguring the air flow in the working chamber: excellent baking ability, high rise, uniformly painted surface, perfect gloss.

The dimensions of the furnace allow it to be installed on small production areas with a minimum room height of 2.5 m.

Claims (1)

A rotary bakery cabinet, consisting of a housing in which an internal frame is installed that forms a working chamber in which electric motors with fans are located, heating elements closed by a partition, a rotary frame with a rotation mechanism in the base, containing a rotation axis, a spring and a ball, the rotation mechanism being a latch for a trolley, a water supply unit, a door, a control panel, an exhaust hood, characterized in that the cabinet structure is collapsible, said rotation mechanism further comprises a stop and kan mounted coaxially in each other, and the base of the inner frame and the base frame are made rotatable on the same level.