Punching device for cutting out pieces of dough

Abstract

A punching device for punching out pieces of dough from a dough, which has a lifting device (2) for vertically lowering and raising a punching tool (1), characterized in that a holding device for a releasable pressure plate (11) covering the punching area (7) of the punching device is arranged on the punching device, that the pressure plate (11) is aligned below the punching tool (1) in a horizontal plane, and that the pressure plate (11) together with the punching tool (1) can be vertically lowered and raised by means of the lifting device (2).

Description

[0001] The invention relates to a punching device for punching out dough pieces from a dough according to the preamble of claim 1.

[0002] For punching out dough pieces, punching devices are known that can be used to punch out strip-shaped or rectangular pieces, or other shapes, from a sheet of dough or a dough plate. For this purpose, a punching tool is pressed from above through the dough against a base plate or the bottom of a tub containing the dough. After the punching tool is lifted, the punched dough pieces can then be removed individually and further processed.

[0003] Such a punching device is known from DE 20 2010 006 780 U1. The punching tool of this punching device is lowered during the punching process by means of a one-hand lever that actuates a vertical rack via a gear. After the punching process, the hand lever is returned to its upper starting position, which also raises the punching tool vertically, allowing the punched dough pieces to be removed from the punching area of ​​the punching device for further processing.

[0004] For the production of special baked goods, it may be necessary to compress the dough before further processing to achieve finer porosity through partial degassing. Dough compression can be achieved by applying a sufficiently high mechanical pressure to the dough using a pressure tool.

[0005] The invention is based on the object of developing a punching device for punching out dough pieces in such a way that it can also be used to compress dough.

[0006] The solution to this problem is obtained with the features of claim 1. According to the invention, a holding device for a detachable printing plate covering the punching area of ​​the punching device is arranged on the punching device, wherein the printing plate is aligned below the punching tool in a horizontal plane and can be lowered and raised vertically by means of a lifting device.

[0007] The ability to mount a pressure plate underneath the punching tool allows the punching device to be used not only to punch out dough pieces, but also to compress dough in the punching area. Dough compression is preferably performed before the punching process, so that all punched-out dough pieces are already compressed and thus partially degassed.

[0008] The punching device with attachable pressure plate is particularly suitable for the production of small series.

[0009] The printing plate can be very advantageously removably attached directly to the punching tool, with guide rails attached to the punching tool as a holding device. The printing plate then simply needs to be pushed sideways onto the punching tool using guide elements in the guide rails until the printing plate completely covers the punching area below the punching tool. In this way, the printing plate can be easily pushed onto and removed from the punching tool by hand, resulting in a relatively low labor requirement for converting the punching device.

[0010] In principle, it is also possible to attach the printing plate to the punching tool in such a way that the printing plate can be pivoted or folded up when the printing plate is to be removed from the punching area.

[0011] The pressure plate preferably rests on its upper side against the downward-facing cutting edges of the punching tool. This allows the applied pressure to be transferred very evenly via the cutting edges to the pressure plate. The even pressure distribution has the advantage that the dough being compressed is also compressed accordingly and thus partially degassed evenly.

[0012] It's very advantageous to be able to remove and install the printing plate from the punching area by hand without the need for tools. The required holding device is very simple to implement and therefore relatively inexpensive. Furthermore, a holding device with guide rails and guide elements is extremely robust and therefore not prone to failure.

[0013] The pressure plate can be pressed into the punching tool, preferably with relatively high pressure, against the dough placed in a dough tray. This pressure can be achieved by a corresponding gear ratio between the hand lever and the lifting device used to lower the punching tool. The ability to compress dough with high pressure has the advantage that, depending on requirements, very strong compression and the associated significant degassing of the dough can be achieved.

[0014] To operate the pressure plate attached to the punching tool, the punching device preferably has an actuating bar that can be pressed down by an operator in front of the punching device when the pressure plate is pressed against a piece of dough. When the pressure plate is applied to a particular piece of dough, the horizontal handlebar is in a position where an operator can exert pressure from above on the handlebar with their full body weight. This handlebar position is optimal at a working height of approximately 80 cm to 100 cm. However, the working height can also be adjusted to suit the individual operator.

[0015] The operating handle with horizontal handlebar allows an operator to generate a high pressure force to compress dough without too much effort.

[0016] The invention is explained in more detail below using punching devices shown in the drawing as examples.

[0017] They show: Fig. 1 a conventional punching device, Fig. 2 the punching tool of a punching device according to the invention with a partially pushed-on pressure plate, Fig. 3 shows a simplified overall view of a punching device according to the invention with an actuating bracket for the lifting movement of the punching tool with pressure plate.

[0018] The Fig. The punching device shown in Figure 1 is known from DE 20 2010 006 780 U1. The punching device comprises a punching tool 1, a lifting device 2 with a hand lever 3, and a base plate 4. By means of the lifting device 2, the punching tool 1 can perform a lifting movement according to the direction of the arrow 6 by actuating the hand lever 3 in the direction of the arrow 5.

[0019] A dough (not shown here) can rest in the punching area 7 below the punching tool 1 on the base 8 of a tub 9, which is shown here as being open at the side, for example as a plate-shaped piece of dough. If the punching tool 1 is then lowered by means of the lifting device 2 down to the base 8 through the dough resting on it, the punching tool 1 punches out a plurality of dough pieces from the dough. During punching, the cutting edges 10 of the punching tool 1 penetrate the dough resting on the base 8. After the punching tool 1 has been lifted into the position shown, the tub 9 with the dough pieces inside it can be removed for further processing.

[0020] Fig. Figure 2 now shows the punching tool 1 of a punching device according to the invention, in which a pressure plate 11 can be pushed onto the punching tool 1 in the direction of arrow 12. The punching device has rod-shaped guide elements 13, 14 projecting from the pressure plate 11, which can be pushed into tubular guide rails 15, 16 in the direction of arrow 12. The guide rails 15, 16 are attached to the punching tool 1 on cross members 17, 18. Connecting struts 19 to 22 extend from the cross members 17, 18 to the clamping device 23, with which the punching tool 1 is mounted on the lifting device 2. The rod-shaped guide elements 13, 14 and the tubular guide rails 15, 16 thus form a holding device for the pressure plate 11, which can be pushed onto the punching tool 1 by hand.

[0021] The pressure plate 11, partially pushed onto the punching tool 1 for better illustration, has longitudinal struts 24, 25 on its upper side 26, to which the guide elements 13, 14 and also a handle 27 are attached. The pressure plate 11 can be pushed onto the punching tool 1 using the handle 27 and can also be removed again. If the pressure plate 11 is completely pushed onto the punching tool 1 in the direction of arrow 12, the pressure plate 11 completely covers the underside or the cutting edges 10 of the punching tool 1, as shown in Fig. 3. The cutting edges 10 can rest on the upper side 26 of the pressure plate 11 for vertical force transmission. However, the pressure plate 11 with its guide elements 13, 14 can also be designed so stable that direct contact of the cutting edges 10 with the upper side 26 of the pressure plate 11 is not necessary.

[0022] In Fig. 3 shows a simplified perspective view of a punching device according to the invention, in which the pressure plate 11 is completely pushed onto the punching tool 1.

[0023] Unlike the conventional punching device, as shown in Fig. 1, the punching device according to Fig. 3 an actuating bracket 28, with which the lifting device 2 can be lowered and raised in the direction of the arrow 6. This lowers and raises the punching tool 1 with the pressure plate 11 running along its underside.

[0024] If the actuating bracket 28 is pivoted in the direction of arrow 29 from its starting position, the punching tool 1 is initially lowered until the pressure plate 11 comes into contact with a piece of dough (not shown here) resting on the base plate 4. The holding bracket 28 is then in the front position 30 indicated by broken lines. A handle 31 provided on the actuating bracket 28 is then in the position 30 indicated by broken lines and can be pressed down in this position with the full body weight of an operator. This allows a correspondingly high pressure to be exerted via the pressure plate 11 onto the dough located beneath it.

[0025] Below the pressure plate 11, a dough to be compressed can be located directly on the base plate 4 or, for example, in a dough tray not shown here.

Claims

[1] Punching device for punching out dough pieces from a dough, which has a lifting device (2) for vertically lowering and raising a punching tool (1), characterized by that a holding device for a detachable pressure plate (11) covering the punching area (7) of the punching device is arranged on the punching device, that the pressure plate (11) is aligned below the punching tool (1) in a horizontal plane, and that the pressure plate (11) can be vertically lowered and raised together with the punching tool (1) by means of the lifting device (2). [2] Punching device according to claim 1, characterized by that the pressure plate (11) is releasably attached to the punching tool (1). [3] Punching device according to one of claims 1 or 2, characterized by that the holding device comprises guide rails (15, 16) attached to the punching tool (1), into which the pressure plate (11) can be inserted with corresponding guide elements (13, 14). [4] Punching device according to one of the preceding claims, characterized by that the pressure plate (11) rests with its upper side (26) on downwardly directed cutting edges (10) of the punching tool (1). [5] Punching tool according to one of the preceding claims, characterized by that the pressure plate (11) can be removed from the punching area (7) by hand without tools. [6] Punching device according to one of the preceding claims, characterized by that the pressure plate (11) attached to the punching tool (1) can be pressed against a dough from above with high contact pressure. [7] Punching device according to one of the preceding claims, characterized by that the punching device has an actuating bracket (28) that can be operated with both hands for pressing down and lifting the punching tool (1). [8] Punching device according to claim 7, characterized bythat a horizontally aligned handle bar (31) of the actuating bracket (28) is in a position (30) in front of the punching device when the pressure plate (11) is pressed onto a dough. [9] Punching device according to claim 8, characterized by that the position (30) of the handle bar (31) for pressing the pressure plate (11) onto the dough is at a working height of 80cm to 100cm.

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