EA045685B1 - DEVICE FOR FORMING A DOUGH LAYER - Google Patents

Description

Technical field

The invention relates to equipment and technologies for the baking industry, namely to devices for forming a layer of dough and can be used in the production of automatic preparation of thin Armenian lavash.

State of the art

A molding machine is known for forming a layer of dough in an automated line for the production of thin Armenian lavash (invention patent RU 2324353, IPC: A21B 5/00, publ. 05/20/2008). The molding machine is made in the form of a roller extruder with a drive, with a receiving hopper and a slot matrix, where the slot matrix has the form of a slot, and not a separate structural unit. The extruder rollers have a profile surface and are coated with an anti-stick layer. Rotating, the rollers grab the dough from the hopper and push it through the slot matrix. The dough is formed in the form of a continuous ribbon 20-30 cm wide and 3-4 mm thick.

Such high pressures lead to stress, which significantly reduces the quality of products made from such dough.

The essence of the invention

The objective of the invention is to improve the organoleptic properties of the dough and the quality of the final product.

The essence of the invention is a device for forming a layer of dough, containing a supporting body made of sheet metal, a removable hopper for loading dough, under which two pairs of driven shafts are located vertically above each other: the first pair of shafts for feeding and primary formation of the dough and the second pair of shafts for the final formation of the layer test. The first pair of shafts for feeding and initially forming the dough is made with a gap of a certain width between the shafts, and the shafts have dough gripping grooves along the entire length of the shafts. At the exit of the second pair of shafts, scrapers are installed to prevent the dough layer from sticking to the shafts. The shafts are mounted on the supporting body by means of bearings, and the device contains a mechanism for adjusting the thickness of the dough layer and two side walls for adjusting the width of the dough layer. At the bottom of the device there is an automatic dough stacker, wherein the automatic dough stacker is mounted on a supporting body on bearings with the possibility of pendulum movement of the autostacker relative to the bearings.

The essence of the invention is also that the automatic dough stacker is made in the form of two load-bearing walls and two transverse fastening walls, which secure the overall structure of the autostacker and hold the load-bearing walls in parallel. Inside the structure, several pairs of self-propelled shafts are installed on the load-bearing walls, perpendicular to the walls vertically above each other. The auto-stacker has a separate drive, on the gearbox of which there is a disk, on which one end of the pusher is fixed by means of a bearing. A longitudinal groove is made at the other end of the pusher, and this end is connected to the load-bearing wall of the autostacker via a bearing through the groove.

Brief list of graphic materials

In fig. 1 shows a general view of the proposed device.

In fig. Figure 2 shows a longitudinal section of the device, front view.

In fig. Figure 3 shows a longitudinal section of the device, rear view.

In fig. Figure 4 shows a longitudinal section of the device, side view.

In fig. Figure 5 shows a general view of the proposed device without a hopper.

In fig. Figure 6 shows the side walls for adjusting the width of the dough layer.

Carrying out the invention

The device for forming a layer of dough is one of the important components for processing and feeding a continuous, uniform layer of dough in an automated line for the production of bakery products, in particular thin Armenian lavash. The device contains: a supporting body (1) made of sheet metal, a removable dough loading hopper (2), a first pair of shafts (3) for feeding and primary dough formation, a second pair of shafts (4) for the final formation of a dough layer, at the output of the second pair of shafts there are scrapers (5) to prevent the dough layer from sticking to the rollers. The shafts are mounted on the supporting body (1) by means of bearings; an automatic dough stacker (6) is installed in the lower part of the device on the body through bearings.

Stress-free formation of the dough layer is achieved due to the maximum grip of the first pair of shafts (3), on which grip grooves (7) are made along the entire length of the shafts, and between the shafts (3) there is a gap of a certain width. All these conditions make it possible to avoid sliding and pressing the dough, and by hooking it, push it onto the second pair of smooth rollers (4), without creating much pressure on the dough. Next, the dough passes through the second pair of rollers (4), where the final layer of dough is formed in thickness. The thickness of the dough is adjusted using the thickness adjustment mechanism (8), which contains a tension bearing, a pin and a nut, and the width of the dough is adjusted and formed by the side walls (9). The side walls (9) are located inside the supporting body (1) together with two pairs of forming shafts (3) and (4) and are supported by oil seals (10), which are inserted in the inner part between the side walls (9). The walls (9) are tightened together with bolts and nuts (11), which are recessed into the walls (9), and the axes of the shafts (3) and (4) are installed in the oil seals (10). In a supporting body (1)

- 1 045685 there are adjustment screws (12), through which the side walls are pressed against the shafts of the forming shafts (3) and (4). The first pair and the second pair of forming shafts (3) and (4) have a separate drive (13) (geared motor), through a chain transmission from the geared motor, the movement is transmitted to the drive shaft of the first and second pair of forming shafts, and to the driven shafts of the pairs transmitted using a gear transmission.

The automatic dough stacker (6) is installed in the lower part of the device and is made in the form of two load-bearing walls (14) and two transverse fastening walls (15), which secure the overall structure of the autostacker (6) and hold the load-bearing walls in parallel. The automatic dough stacker (6) also contains self-propelled shafts (16), which are installed on the load-bearing walls (14) perpendicular to the walls and fixed with bolts and nuts on the load-bearing walls (14) of the autostacker (6). Self-propelled shafts are installed for better sliding of the dough layer on the auto-stacker and uniform laying of the dough in layers on top of each other. The auto-stacker (6) also has a separate drive (17) (geared motor). The gearbox has a disk (18) with a certain diameter, on which one end of the pusher (20) is mounted by means of a bearing (19). Preferably, the connection of this end of the pusher (20) with the disk is located in close proximity to the circumference of the disk (18), i.e., at the edge of the disk. The other end of the pusher (20) has a longitudinal groove, through which this end is connected through a bearing (21) to the load-bearing wall (14) of the autostacker. The pendulum movement of the autostacker (6) is regulated by moving up and down the bearing (21) mounted on the load-bearing wall of the autostacker, while the rotation speed of the disk (18) is adjusted from the frequency converter control panel. The dough layer, passing through the auto-stacker (6) and falling on the self-propelled shafts (16), sets them in motion due to its own weight and, thus, the dough layer passes through the auto-stacker (6) without getting stuck inside. The rotational movement of the disk (18) through the pusher (20) is converted into an oscillatory (pendulum) movement of the autostacker (6) relative to the bearing (22), by means of which the autostacker (6) is mounted on the supporting body.

Due to the pendulum movement of the auto-stacker (6) relative to the bearing (22), the dough is laid in layers on top of each other on a conveyor for further processing (the conveyor is not indicated in the figures).

The laying process is necessary to form a transverse and longitudinal uniform structure in the dough. With this method of laying, the molecular structure of the dough is stronger, which makes it possible to stretch the dough both lengthwise and crosswise; the same effect is obtained on the finished product and the pita bread becomes stronger in both directions.

The proposed device for forming a layer of dough allows stress-free formation of a layer of dough, which leads to an improvement in the quality and organoleptic characteristics of pita bread baked from this layer of dough. At the same time, the device body is made of sheet metal, which does not deform during long-term operation; the main components are fixed on the supporting body, which simplifies the assembly and disassembly of the device, and quick replacement of components. Metals and coatings for the food industry are used.

Claims (2)

1. A device for forming a dough layer, containing a supporting body made of sheet metal, a removable dough loading hopper, under which two pairs of drive shafts are located vertically above each other - the first pair of shafts for feeding and primary formation of the dough and the second pair of shafts for the final formation of the dough layer , the first pair of shafts for feeding and initially forming dough is made with a gap of a certain width between the shafts, and dough gripping grooves are made on the shafts along the entire length of the shafts, scrapers are installed at the output of the second pair of shafts to prevent the dough layer from sticking to the shafts, the shafts are installed on the supporting body by bearings, the device contains a mechanism for adjusting the thickness of the dough layer and two side walls for adjusting the width of the dough layer; an automatic dough stacker is located in the lower part of the device, and the automatic dough stacker is mounted on a supporting body on bearings with the possibility of pendulum movement of the auto stacker relative to the bearings. 2. The device according to claim 1, characterized in that the automatic dough stacker is made in the form of two load-bearing walls and two transverse mounting walls; several pairs of self-propelled shafts are installed on the load-bearing walls perpendicular to the walls vertically above each other; the automatic dough stacker has a separate drive , on the gearbox of which there is a disk installed, on which one end of the pusher is fixed by means of a bearing, and on the other end of the pusher there is a longitudinal groove through which this end is connected by means of a bearing to the load-bearing wall of the auto-stacker.