A dough kneading method for a food processor and a food processor using the dough kneading method

Abstract

The present invention relates to a dough kneading method and a cooking machine for a cooking machine, characterized in that: after the dough kneading starts, the following steps are executed until the dough kneading ends: Step 1, the driving motor starts running at Tor1; Step 2, determine whether the driving motor speed stabilization time exceeds t cmp , if so, enter Step 3; if not, return to Step 2; Step 3, clear t and restart t; Step 4, determine whether t < t1 holds. If it holds, jump to Step 5, otherwise jump to Step 6; Step 5, the driving motor runs according to the second pulse torque, and then return to Step 4; Step 6, determine whether t < t1 + t2 holds. If it holds, jump to Step 7, otherwise jump to Step 8; Step 7, the driving motor runs according to the third pulse torque, and then return to Step 4; Step 8, determine whether t < t inter holds. If it holds, jump to Step 9, otherwise jump to Step 3; Step 9: The driving motor runs according to the first torque and returns to Step 4.

Description

Technical Field

[0001] The present invention relates to a dough kneading method for a cooking machine and a cooking machine adopting the dough kneading method. Background Art

[0002] Dough kneading mainly makes flour and water mix evenly, and gluten proteins are generated from glutenin and gliadin in the flour. Stirring can mix air into the flour, thereby promoting the oxidation reaction of gluten; it can also generate more connections between protein molecules to form a dense network structure. To form a stronger gluten structure, that is, to form a glove film, more violent collisions between protein molecules are required, and at the same time, the bubbles generated during the dough kneading process are continuously squeezed out to optimize the tissue structure and reduce tissue structure defects. During the process of performing the dough kneading function by existing cooking machines, the driving motor speed continuously remains at a high speed, not only consuming a large amount of energy, but also having a short service life of the motor. Summary of the Invention

[0003] The primary technical problem to be solved by the present invention is to provide a dough kneading method for a cooking machine that can effectively reduce energy consumption and improve the service life of the driving motor while ensuring the dough kneading effect according to the above-mentioned existing technology.

[0004] The technical solution adopted for the further technical problem of the present invention is to provide a cooking machine that can effectively reduce energy consumption and improve the service life of the driving motor while ensuring the dough kneading effect.

[0005] The technical solution adopted by the present invention to solve the above primary technical problem is as follows: A dough kneading method for a cooking machine, applicable to a food cooking machine with a dough kneading knife, the dough kneading knife is connected to a driving motor and driven by the driving motor to rotate, and is characterized in that: after the dough kneading starts, the following steps are executed until the dough kneading ends:

[0006] Step 1: The driving motor starts to run with a preset first torque Tor1;

[0007] Step 2: Judge whether the driving motor speed stabilization time exceeds a first preset time t cmp , if so, enter Step 3; if not, return to Step 2;

[0008] Step 3: Clear the timing time t to zero and restart the timing;

[0009] Step 4: Judge whether the timing time t < t1 is established, t1 is the first preset time, if it is established, jump to Step 5, otherwise jump to Step 6;

[0010] Step 5: The driving motor runs according to a second pulse torque Tor2, and then returns to Step 4;

[0011] Step 6: Determine whether the timing time t < t1 + t2 holds, where t2 is the second preset time. If it holds, jump to Step 7; otherwise, jump to Step 8;

[0012] Step 7: Drive the motor to run according to the third pulse torque Tor3, and then return to Step 4;

[0013] Step 8: Determine whether the timing time t < t inter holds, where t inter is the third preset time and t inter > t1 + t2. If it holds, jump to Step 9; otherwise, jump to Step 3;

[0014] Step 9: Drive the motor to run according to the preset first torque, and return to Step 4.

[0015] Preferably, the time t1 for which the drive motor runs at the second pulse torque Tor2 and the time t2 for which it runs at the third pulse torque Tor3 satisfy the following formula:

[0016] Tor2·t1 + Tor3·t2 = Tor1·(t1 + t2).

[0017] Preferably, t1 > t2, t1 ∈ [0.4, 1] s, t2 ∈ [0.1, 0.3] s, and t inter ∈ [5, 15] s.

[0018] Preferably, t1 = 0.5 s, t2 = 0.2 s, and t inter = 10 s.

[0019] Preferably, the waveform of the second pulse torque is a square wave; the maximum torque of the second pulse torque is set to Tor2, and the duration of t1 is the duration of half a cycle of the square wave signal in the second pulse torque; the waveform of the third pulse torque is also a square wave, the maximum torque of the third pulse torque is set to Tor3, and the duration of t2 is the duration of half a cycle of the square wave signal in the third pulse torque; where Tor2 < Tor1 and Tor3 > Tor1.

[0020] Preferably, the waveform of the second pulse torque is a sine wave, the maximum torque is set to Tor2, and the duration of t1 is the duration of half a cycle of the sine wave signal in the second pulse torque; the function of the second pulse torque T2 is:

[0021]

[0022] The waveform of the third pulse torque is also a sine wave, the maximum torque is set to Tor3, and the duration of t2 is the duration of half a cycle of the sine wave signal in the third pulse torque; the function of the third pulse torque T3 is:

[0023] Among them Tor2<Tor1,Tor3> Tor1.

[0024] The technical solution adopted by the present invention to solve the above-mentioned further technical problems is: a food processor, comprising a cup body, in which a kneading knife is provided, the kneading knife is connected to a driving motor and driven to rotate by the driving motor, and is characterized in that: the food processor adopts the kneading method described above to execute the kneading program.

[0025] Compared with the prior art, the advantages of the present invention are: by periodically injecting two pulse torques into the driving motor, the effect of separation and collision between the kneading knife and the dough is achieved, and the collision is made more violent; the dough is easy to form a strong gluten structure, i.e., a glove film; at the same time, the injection of pulse torque can effectively reduce energy consumption and increase the service life of the driving motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 The present invention is a flowchart of a dough kneading method of a food processor in the first embodiment of the present invention.

[0027] Figure 2 This is a timing diagram of the torque and speed of the driving motor in the first embodiment of the present invention.

[0028] Figure 3 This is a timing diagram of the torque and speed of the driving motor in the second embodiment of the present invention.

[0029] Figure 4 Schematic diagram of the structure of a food processor in an embodiment of the present invention. DETAILED DESCRIPTION

[0030] The present invention is further described in detail below with reference to the accompanying drawings.

[0031] Embodiment 1

[0032] The dough kneading method provided by the food processor in this embodiment is applicable to a food processor having a dough kneading knife, wherein the dough kneading knife is connected to a driving motor and driven by the driving motor to rotate. When the dough kneading starts, the following steps are performed until the dough kneading ends. Figure 1 As shown:

[0033] Step 1, the driving motor starts running with a preset first torque Tor1;

[0034] Step 2: When the speed of the driving motor is stable, the speed of the driving motor is set to ω1, and then it is determined whether the stable speed time of the driving motor exceeds the first preset time t cmp If yes, go to step 3; if no, return to step 2; 5s≤t cmp ≤15s, preferably 10s;

[0035] Step 3, reset the timing time t and restart the timing;

[0036] Step 4: Determine whether the timing time t < t1 holds, where t1 is the first preset time. If it holds, jump to Step 5; otherwise, jump to Step 6.

[0037] Step 5: Drive the motor to run according to the second pulse torque Tor2. Assume that the rotational speed of the drive motor becomes ω2 at this time, and then return to Step 4.

[0038] Step 6: Determine whether the timing time t < t1 + t2 holds, where t2 is the second preset time. If it holds, jump to Step 7; otherwise, jump to Step 8.

[0039] Step 7: Drive the motor to run according to the third pulse torque Tor3. Assume that the rotational speed of the drive motor becomes ω3 at this time, and then return to Step 4.

[0040] Step 8: Determine whether the timing time t < t inter holds, where t inter is the third preset time, t inter > t1 + t2. If it holds, jump to Step 9; otherwise, jump to Step 3.

[0041] Step 9: Drive the motor to run according to the preset first torque, and return to Step 4.

[0042] In this embodiment, the waveform of the second pulse torque is a square wave; the maximum torque of the second pulse torque is set to Tor2, and the duration of t1 is the duration of half a cycle of the square wave signal in the second pulse torque; the waveform of the third pulse torque is also a square wave, the maximum torque of the third pulse torque is set to Tor3, and the duration of t2 is the duration of half a cycle of the square wave signal in the third pulse torque; see the torque and rotational speed timing diagram of the drive motor in Figure 2 shown, where Tor2 < Tor1, Tor3 > Tor1, and the running time t1 of the drive motor under the second pulse torque Tor2 and the running time t2 under the third pulse torque Tor3 satisfy the following formula:

[0043] Tor2·t1 + Tor3·t2 = Tor1·(t1 + t2).

[0044] The above execution steps can make the dough kneading blade achieve a similar periodic dough throwing action. The purpose of setting Tor2 < Tor1 and Tor3 > Tor1 is to first reduce the rotational speed of the drive motor and then suddenly apply force, which can achieve the effect of collision between the dough and the dough kneading blade. Preferably, t1 is greater than t2, t1 ∈ [0.4, 1] s, t2 ∈ [0.1, 0.3] s, t inter ∈ [5, 15] s, t1 = 0.5 s, t2 = 0.2 s, t inter=10s, in this way, Tor3 will be larger, which can increase the transient torque, thus making the dough achieve a violent collision effect.

[0045] Embodiment 2

[0046] Different from the first embodiment, the waveform of the second pulse torque is a sine wave, the maximum torque is set to Tor2, the duration of t1 is the duration of half a cycle of the sine wave signal in the second pulse torque; the function of the second pulse torque T2 is:

[0047] The waveform of the third pulse torque is also a sine wave, the maximum torque is set to Tor3, the duration of t2 is the duration of half a cycle of the sine wave signal in the third pulse torque; the third pulse torque T3 function is:

[0048] Among them Tor2<Tor1,Tor3> Tor1. For the timing diagram of the torque and speed of the drive motor, refer to Figure 3 shown.

[0049] Compared with square wave pulses, sine wave pulses have fewer harmonic components and can effectively suppress the current mutation noise generated when the torque changes suddenly. Therefore, the noise is lower when the drive motor is running.

[0050] The present invention also provides a food processor, see Figure 4 As shown, it includes a cup body 1, in which a kneading knife 2 is arranged. The kneading knife 2 is connected to a driving motor 3 at the bottom of the cup body and is driven to rotate by the driving motor. In this embodiment, the kneading method in any of the above embodiments of the food processor executes the kneading program.

Claims

1. A dough kneading method for a food processor, applicable to a food processor having a dough kneading knife, wherein the dough kneading knife is connected to a driving motor and driven to rotate by the driving motor, characterized in that: After kneading starts, the following steps are executed until kneading ends: Step 1: The drive motor starts running at a preset first torque Tor1; Step 2: Determine whether the driving motor speed stabilization time exceeds the first preset time t cmp If yes, go to step 3; if no, return to step 2; Step 3: Clear the timing time t and restart timing; Step 4: Determine whether the condition t < t1 holds, where t1 is a first preset time. If it holds, jump to Step 5; otherwise, jump to Step 6; Step 5: The drive motor runs according to a second pulse torque Tor2, and then return to Step 4; Step 6: Determine whether the condition t < t1 + t2 holds, where t2 is a second preset time. If it holds, jump to Step 7; otherwise, jump to Step 8; Step 7: The drive motor runs according to a third pulse torque Tor3, and then return to Step 4; Step 8: Determine the timing time t <t inter Is it established? inter is the third preset time, t inter >t1+t2, if true, jump to step 9, otherwise jump to step 3; Step 9: The drive motor runs at the preset first torque and returns to Step 4; The time t1 during which the drive motor runs at the second pulse torque Tor2 and the time t2 during which it runs at the third pulse torque Tor3 satisfy the following formula: Tor2·t1 + Tor3·t2 = Tor1·(t1 + t2); The waveform of the second pulse torque is a square wave; the maximum torque of the second pulse torque is set to Tor2, and the duration of t1 is the duration of half a cycle of the square wave signal in the second pulse torque; the waveform of the third pulse torque is also a square wave, the maximum torque of the third pulse torque is set to Tor3, and the duration of t2 is the duration of half a cycle of the square wave signal in the third pulse torque; where Tor2 < Tor1 and Tor3 > Tor1; Or the waveform of the second pulse torque is a sine wave, the maximum torque is set to Tor2, and the duration of t1 is the duration of half a cycle of the sine wave signal in the second pulse torque; the function of the second pulse torque T2 is: t∈[0,t1]; The waveform of the third pulse torque is also a sine wave, the maximum torque is set to Tor3, and the duration of t2 is the duration of half a cycle of the sine wave signal in the third pulse torque; the function of the third pulse torque T3 is: t∈[0,t2]; where Tor2<Tor1,Tor3> Tor1.

2. The dough kneading method of a food processor according to claim 1, characterized in that: t1 is greater than t2, t1∈[0.4,1]s, t2∈[0.1,0.3]s, t inter ∈[5,15]s.

3. The dough kneading method of a food processor according to claim 2, characterized in that: t1=0.5s,t2=0.2s,t inter =10s。 4. A food processor, comprising a cup body, wherein a dough kneading knife is arranged in the cup body, wherein the dough kneading knife is connected to a driving motor and driven to rotate by the driving motor, wherein: The cooking machine executes the kneading program using the kneading method described in Claim 1.

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