Ice cream machine and control method thereof

Abstract

The invention relates to an ice cream machine and a control method thereof. The ice cream machine comprises a shell, a driving assembly, a stirring assembly and a cup body assembly. The driving assembly is mounted in the shell; the stirring assembly comprises a stirring shaft and a tool bit, and the driving assembly is connected with the stirring shaft; the cup body assembly is connected with the shell, and the tool bit is arranged in the cup body assembly; the ice cream machine has a locking state and an unlocking state, the driving assembly drives the stirring shaft to rotate and / or ascend and descend so as to achieve automatic switching between the locking state and the unlocking state, the locking state is configured to be that the tool bit is assembled on the stirring shaft, and the unlocking state is configured to be that the tool bit is assembled in the cup body assembly. According to the ice cream machine, automatic feeding and automatic retracting of the tool bit can be achieved; in the unlocking state, a user can detach the cup cover and the cutter head together, cleaning of the cutter head is facilitated, connection of the cutter head is stable through cooperation of an installation buckle and a limiting protruding column, and the phenomenon that the cutter head falls off is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of kitchen electrical appliances, and in particular to an ice cream machine and a control method thereof. Background Art

[0002] With the development of society and the advancement of science and technology, people have higher and higher requirements for the quality of life. Kitchen appliances are also constantly being updated. People make their favorite flavors of ice cream by themselves to meet their cooking needs for healthy food. Among them, ice cream machines, as an innovative kitchen appliance, have gradually entered the homes of mass users. The main function of this product is to make various styles of ice cream, smoothies, milkshakes, etc. Most of the ice cream machines currently on the market are commercial models, with only a few household brands.

[0003] In the prior art, the stirring blade of a household ice cream machine can only achieve automatic advance, but cannot automatically retract, and there is a problem that the stirring blade is easy to fall off and difficult to clean. There are two types of stirring blade falling off phenomena: first, the stirring blade is easy to fall off during the process of making ice cream; second, the stirring blade is easy to fall off when there is a power outage in the process of making ice cream, or the consumer mistakenly operates the forced on and off function. Because the ice cream ingredients have a certain viscosity, if the stirring blade falls off during the ice cream making process, the high-speed stirring blade will tilt at the moment of falling off, scratching the inner wall of the stirring cup, causing serious damage to the stirring cup, and minor hardware or plastic powder particles will be scraped out of the stirring cup and mixed into the ingredients, causing health and safety hazards to users. When the stirring blade falls off and buries in the ingredients, it becomes very difficult to remove the stirring blade from the ingredients if you want to make ice cream again. The stirring blade head and the blade head connection hole will be full of ice cream ingredients, and cleaning will become very troublesome. Summary of the invention

[0004] The first object of the present invention is to provide an ice cream machine, which aims to solve the technical problems that the stirring blade of the existing ice cream machine can only automatically advance but cannot automatically retract, and the stirring blade is easy to fall off and difficult to clean.

[0005] In order to solve the above technical problems, an ice cream machine is provided, comprising:

[0006] case;

[0007] A drive assembly is installed in the housing;

[0008] A stirring assembly, the stirring assembly comprising a stirring shaft and a cutter head, the driving assembly being connected to the stirring shaft;

[0009] A cup body assembly connected to the housing, wherein the cutter head is disposed in the cup body assembly;

[0010] The ice cream machine has a locked state and an unlocked state. The driving component drives the stirring shaft to rotate and / or lift to achieve automatic switching between the locked state and the unlocked state. The locked state is configured as: the cutter head is assembled on the stirring shaft, and the unlocked state is configured as: the cutter head is assembled in the cup body assembly.

[0011] Furthermore, the stirring assembly also includes a connecting head, which is connected to the stirring shaft, and the connecting head has a mounting buckle for forming a connection with the blade head.

[0012] Further, the mounting buckle forms a limiting groove, a plurality of the mounting buckles are provided, a guide groove is formed between adjacent mounting buckles, and the guide groove is connected to the limiting groove;

[0013] The cutter head has a limiting protrusion matched with the limiting groove.

[0014] Furthermore, the cup body assembly includes a cup body part, a fixing frame and an elastic member, the fixing frame is slidably installed in the cup body part, and the elastic member abuts between the cup body part and the fixing frame.

[0015] Further, the fixing frame is provided with a first guide portion, the cup body component includes a second guide portion cooperating with the first guide portion, and the first guide portion cooperates with the second guide portion so that the fixing frame rotates relative to the cup body component when sliding.

[0016] Further, the first guide portion is configured as a convex strip arranged in a spiral shape, and the second guide portion is configured as a groove arranged in a spiral shape.

[0017] Furthermore, the cup body component includes a cup body and a cup cover connected to the cup body, and the cup body assembly also includes a magnetic member, the magnetic member is connected to the fixing frame, and the elastic member abuts between the fixing frame and the cup cover.

[0018] Furthermore, the driving assembly includes a rotating driving component, a lifting driving component and a mounting plate, the lifting driving component is mounted on the shell and connected to the mounting plate, the rotating driving component is mounted on the mounting plate and is transmission-connected to the agitator shaft, the rotating driving component is used to drive the agitator shaft to rotate, and the lifting driving component is used to drive the mounting plate and the agitator shaft to rise and fall.

[0019] Furthermore, the ice cream machine also includes a controller, an in-place switch, an upper limit switch and a lower limit switch. The controller is electrically connected to the in-place switch, the upper limit switch, the lower limit switch, the rotating drive component and the lifting drive component, respectively. The in-place switch is configured to trigger the in-place switch to control the start and stop of the rotating drive component when the stirring shaft reaches a preset position.

[0020] A second object of the present invention is to provide a control method for an ice cream machine, which is used to control the above-mentioned ice cream machine, comprising:

[0021] The controller controls the lifting drive component to start, so as to drive the stirring shaft to descend;

[0022] The stirring shaft continues to descend and enters the limiting groove through the guide groove;

[0023] After the stirring shaft descends to a preset position, the in-position switch is triggered, and the in-position switch sends a first control signal to control the rotation drive component to start and drive the stirring shaft to rotate, so that the cutter head is connected to the stirring shaft;

[0024] The stirring shaft continues to descend so that the cutter head is separated from the cup body assembly and enters a locked state;

[0025] After the lower limit switch is triggered, the lower limit switch sends a third control signal, and the lifting drive component drives the stirring assembly to rise to the preset position and then triggers the in-position switch, and the in-position switch sends a second control signal to control the rotation drive component to stop running;

[0026] The lifting drive component drives the stirring assembly and the fixing frame to continue to rise, and the fixing frame rotates relative to the cup body component until the cutter head is separated from the stirring shaft and enters an unlocked state;

[0027] The lifting drive component continues to rise and triggers the upper limit switch, and the upper limit switch sends a third control signal to control the lifting drive component to stop running.

[0028] Implementing the embodiments of the present invention will have the following beneficial effects:

[0029] In the ice cream machine of this embodiment, the cutter head is installed on the cup cover when not in use. When it is needed, the driving assembly drives the stirring shaft to descend and automatically assembles the cutter head on the stirring shaft. The driving assembly drives the stirring shaft to rise. At this time, the cutter head is separated from the stirring shaft and assembled on the cup body assembly again, thereby realizing automatic advance and retraction of the cutter head. In addition, in the unlocked state, the user can remove the cup cover together with the cutter head to facilitate cleaning of the cutter head. The stirring shaft and the cutter head of the present application are connected by a connecting head. The cooperation of the mounting buckle and the limiting boss makes the connection of the cutter head stable, avoiding the phenomenon of the cutter head falling off. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0031] Figure 1 It is a structural schematic diagram of an ice cream machine according to an embodiment of the present invention;

[0032] Figure 2 This is a schematic diagram of the structure of the ice cream machine according to an embodiment of the present invention with the shell removed;

[0033] Figure 3 It is a structural schematic diagram of part of the driving components according to an embodiment of the present invention;

[0034] Figure 4 A cross-sectional view of the stirring assembly according to an embodiment of the present invention when it is located at a preset position;

[0035] Figure 5 for Figure 4 A local enlarged schematic diagram of the middle A;

[0036] Figure 6 A cross-sectional view of the stirring assembly according to an embodiment of the present invention in a locked state;

[0037] Figure 7 It is a structural schematic diagram of a fixing frame according to an embodiment of the present invention;

[0038] Figure 8 This is a schematic diagram of the structure of a cup cover according to an embodiment of the present invention;

[0039] Fig. 9 This is a schematic diagram of the structure of a connector according to an embodiment of the present invention;

[0040] Fig.10 It is a structural schematic diagram of a cutter head according to an embodiment of the present invention;

[0041] Fig.11 This is a control principle diagram of an ice cream machine according to an embodiment of the present invention;

[0042] Fig.12 This is a control flow chart of the advance and retreat of the ice cream machine according to an embodiment of the present invention.

[0043] Among them: 100, ice cream machine; 110, housing; 120, drive assembly; 121, rotating drive component; 1211, rotating motor; 1212, belt; 1213, small pulley; 1214, large pulley; 122, lifting drive component; 1221, lifting motor; 1222, ball screw; 123, mounting plate; 124, guide column; 130, stirring assembly; 131, stirring shaft; 132, cutter head; 1321 , limiting boss; 133, connecting head; 1331, mounting buckle; 1332, limiting groove; 1333, guide groove; 140, cup body assembly; 141, cup body component; 1411, cup body; 1412, cup cover; 1412A, second guide part; 142, fixing frame; 1421, first guide part; 143, elastic member; 150, controller; 160, in-position switch; 170, upper limit switch; 180, lower limit switch. DETAILED DESCRIPTION

[0044] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0045] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0046] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0047] Please refer to Figure 1-Figure 11An embodiment of the present invention provides an ice cream machine 100, and the ice cream machine 100 includes a shell 110, a driving assembly 120, a stirring assembly 130 and a cup body assembly 140. The driving assembly 120 is installed in the shell 110; the stirring assembly 130 includes a stirring shaft 131 and a cutter head 132, and the driving assembly 120 is connected to the stirring shaft 131; the cup body assembly 140 is connected to the shell 110, and the cutter head 132 is arranged in the cup body assembly 140; the ice cream machine 100 has a locked state and an unlocked state, and the driving assembly 120 drives the stirring shaft 131 to rotate and / or lift to achieve automatic switching between the locked state and the unlocked state, and the locked state is configured as: the cutter head 132 is assembled on the stirring shaft 131, and the unlocked state is configured as: the cutter head 132 is assembled in the cup body assembly 140. Exemplarily, in this embodiment, the driving assembly 120 realizes automatic feed and automatic retraction of the cutter head 132 by driving the stirring shaft 131 to lift and rotate. Specifically, as Figure 6 The stirring component 130 shown is a schematic diagram of a locked state, in which case the stirring component 130 can be used to obtain food in the cup body component 140 .

[0048] Please refer to Figure 4 , Figure 5 and Figure 6 In the ice cream machine 100 of this embodiment, when the cutter head 132 is not in use, the cutter head 132 is installed on the cup cover 1412. When it is needed, the driving assembly 120 drives the stirring shaft 131 to descend, and the cutter head 132 is automatically assembled on the stirring shaft 131. The driving assembly 120 drives the stirring shaft 131 to rise. At this time, the cutter head 132 is separated from the stirring shaft 131 and assembled on the cup body assembly 140 again, so that the automatic advance and automatic retraction of the cutter head 132 can be realized; in addition, in the unlocked state, the user can remove the cup cover 1412 together with the cutter head 132, which is convenient for cleaning the cutter head 132. The stirring shaft 131 and the cutter head 132 of the present application are connected by the connecting head 133, and the cooperation of the mounting buckle 1331 and the limiting boss 1321 makes the connection of the cutter head 132 stable, avoiding the phenomenon of the cutter head 132 falling off.

[0049] Please refer to Figure 6 , Fig. 9 and Fig.10In a possible implementation, the stirring assembly 130 further includes a connector 133, which is connected to the stirring shaft 131, and the connector 133 has a mounting buckle 1331 for connecting with the cutter head 132. Exemplarily, the connector 133 is cylindrical, and the connector 133 is a hollow structure as a whole, and the connector 133 is installed on the stirring shaft 131 by threaded connection. The connector 133 and the cutter head 132 are connected by the mounting buckle 1331. Due to the reliable connection between the cutter head 132 and the stirring shaft 131 during operation, the cutter head 132 will not be buried in the food after falling off, and it will be difficult to remove. In addition, the cutter head 132 is not provided with structures such as holes and grooves. After the cutter head 132 has made food, there is no food residue on the cutter head 132. It only needs to be rinsed with water to clean the surface of the cutter head 132, which is more convenient and easy to clean.

[0050] Please refer to Figure 6 , Fig. 9 and Fig.10 In one possible implementation, the mounting buckle 1331 forms a limiting groove 1332, and a plurality of mounting buckles 1331 are provided, and a guide groove 1333 is formed between adjacent mounting buckles 1331, and the guide groove 1333 is connected to the limiting groove 1332; the cutter head 132 has a limiting boss 1321 that cooperates with the limiting groove 1332. For example, in this embodiment, there are four mounting buckles 1331, which are evenly distributed around the circumference. The opening of the guide groove 1333 on the connector 133 gradually increases from the end close to the stirring shaft 131 to the end close to the cutter head 132. The setting of the guide groove 1333 is conducive to the entry of the limiting protrusion 1321. In addition, it should be noted that the end of the mounting buckle 1331 close to the cutter head 132 has almost no thickness or a very small thickness. Such a structure is conducive to the limiting protrusion 1321 entering the limiting groove 1332 from the guide groove 1333 to complete the locking of the cutter head 132 no matter what position the stirring shaft 131 rotates to. When the stirring assembly 130 of the present application is working, the cutter head 132 always rotates in the clockwise direction to ensure that the cutter head 132 will not fall out of the limiting groove 1332 during work. The limiting protrusion 1321 is a cylindrical protrusion protruding from the surface of the cutter head 132.

[0051] Please refer to Figure 4 , Figure 5 and Figure 6In a possible implementation, the cup body assembly 140 includes a cup body part 141, a fixing frame 142 and an elastic member 143. The fixing frame 142 is slidably installed in the cup body part 141, and the elastic member 143 abuts between the cup body part 141 and the fixing frame 142. Exemplarily, it should be noted that when the knife is advanced, the stirring shaft 131 descends, and when the limiting protrusion 1321 enters the limiting groove 1332, the fixing frame 142 does not move. When the knife needs to be withdrawn, since the connection relationship between the connecting head 133 and the cutter head 132 is still there, the cutter head 132 will drive the fixing frame 142 to rise. At this time, the fixing frame 142 will drive the stirring assembly 130 to rotate relative to the cup body part 141 while rising, until the cutter head 132 falls off from the stirring shaft 131, and the fixing frame 142 will descend to its original position. It can be understood that when the fixing frame 142 rises, the elastic member 143 contracts due to pressure, and when the cutter head 132 falls off from the stirring shaft 131, the contraction force of the elastic member 143 is released, so that the fixing frame 142 is reset.

[0052] Please refer to Figure 6 , Figure 7 and Figure 8 In one possible implementation, the fixing frame 142 is provided with a first guide portion 1421, and the cup body part 141 includes a second guide portion 1412A cooperating with the first guide portion 1421, and the first guide portion 1421 cooperates with the second guide portion 1412A so that the fixing frame 142 rotates relative to the cup body part 141 when sliding.

[0053] Please refer to Figure 6 , Figure 7 and Figure 8 In one possible implementation, the first guide portion 1421 is configured as a spirally arranged convex strip, and the second guide portion 1412A is configured as a spirally arranged groove. Exemplarily, when the fixed frame 142 slides, the fixed frame 142 can rotate relative to the cup body part 141. The main purpose of this design is to ensure that during the installation and disassembly of the cutter head 132, the rotation and positioning of the cutter head 132 can be smoothly achieved to avoid damage or jamming caused by excessive friction or resistance. The spiral setting is to enable the fixed frame 142 to rotate relative to the cup body part 141 through the cooperation of the spiral convex strip and the spiral groove while the fixed frame 142 moves relative to the cup body part 141. In addition, it should be noted that the first guide portion 1421 can also be configured as a spirally arranged groove, and the second guide portion 1412A can be configured as a spirally arranged convex strip.

[0054] Please refer to Figure 6 , Figure 7 and Figure 8The ice cream machine 100 of the present application is designed with a purely mechanical automatic knife-feeding and automatic knife-retracting structure, including a mounting buckle 1331, a first guide portion 1421, and a second guide portion 1412A, which can first realize automatic alignment, and then complete the knife-feeding and knife-retracting. This structure effectively solves the problem that the mixing knife in the prior art can only realize automatic knife-feeding but cannot automatically retract, and avoids the problem that the mixing knife is easy to fall off and difficult to clean.

[0055] Please refer to Figure 4 , Figure 5 and Figure 6 In a possible implementation, the cup body part 141 includes a cup body 1411 and a cup cover 1412 connected to the cup body 1411, and the cup body assembly 140 also includes a magnetic member, which is connected to the fixing frame 142, and the elastic member 143 abuts between the fixing frame 142 and the cup cover 1412. Exemplarily, the elastic member 143 is a compression spring, and the magnetic member is a permanent magnet. The function of the magnetic member is to fix the cutter head 132, that is, the cutter head 132 is made of a material that can be adsorbed by a magnet, or a matching block that can be adsorbed by a magnetic member is provided on the cutter head 132. The cup cover 1412 and the cup body 1411 are connected in a detachable manner, for example, by a threaded connection, or by a snap-on structure. It is convenient for the user to remove the cup cover 1412 together with the cutter head 132, so as to facilitate the cleaning of the cutter head 132. The cup body 1411 is cylindrical, and the cup body 1411 is used to hold ingredients that need to be stirred.

[0056] Please refer to Figure 2 and Figure 3In a possible implementation, the driving assembly 120 includes a rotating driving component 121, a lifting driving component 122 and a mounting plate 123. The lifting driving component 122 is mounted on the housing 110 and connected to the mounting plate 123. The rotating driving component 121 is mounted on the mounting plate 123 and is connected to the stirring shaft 131 in a transmission manner. The rotating driving component 121 is used to drive the stirring shaft 131 to rotate, and the lifting driving component 122 is used to drive the mounting plate 123 and the stirring shaft 131 to rise and fall. Exemplarily, the rotating driving component 121 includes a rotating motor 1211, a belt 1212, a small pulley 1213 and a large pulley 1214. The rotating motor 1211 is fixed on the housing 110, the small pulley 1213 is mounted on the rotating motor 1211, the large pulley 1214 is fixedly mounted on the stirring shaft 131, and the belt 1212 is connected in a transmission manner between the large pulley 1214 and the small pulley 1213. It should be noted that the rotating motor 1211 is not lifted, and the length of the pulley portion of the small pulley 1213 should be greater than or equal to the lifting range, that is, during the lifting process, the contact position between the belt 1212 and the pulley portion of the small pulley 1213 will change. In other words, the rotating drive component 121 is a belt 1212 transmission mechanism, and the structure of the belt 1212 transmission mechanism is relatively simple, and the manufacturing and maintenance costs are low. And because the contact between the belt 1212 and the wheel is flexible, the noise generated by the belt 1212 transmission mechanism during operation is small. The lifting drive component 122 includes a lifting motor 1221 and a ball screw 1222, the lifting motor 1221 is installed on the housing 110, the ball screw 1222 is fixedly installed on the lifting motor 1221, the mounting plate 123 is connected to the ball screw 1222, and the lifting motor 1221 drives the ball screw 1222 to rotate, so that the mounting plate 123 is lifted and lowered, thereby driving the stirring assembly 130 fixed on the mounting plate 123 to lift and lower. It can be understood that the mounting plate 123 is equivalent to a slider that cooperates with the ball screw 1222. In other words, the lifting drive component 122 is a ball screw 1222 transmission mechanism. The ball screw 1222 transmission mechanism has high precision, which is conducive to controlling the height of the lifting and lowering of the stirring assembly 130, thereby further avoiding the risk of collision between the cutter head 132 and the inner wall of the cup body 1411. The drive assembly 120 also includes a guide column 124, which is mounted on the housing 110 and is provided with four guide columns 124. The mounting plate 123 is slidably mounted on the guide column 124. The function of the guide column 124 is to ensure that the mounting plate 123 and the stirring assembly 130 always move in the vertical direction during the lifting process without deviation, and further ensure that the cutter head 132 will not tilt or deflect during the process, thereby reducing the risk of scratching the inner wall of the cup body assembly 140.

[0057] Please refer to Fig.11In a possible implementation, the ice cream machine 100 further includes a controller 150, an in-position switch 160, an upper limit switch 170, and a lower limit switch 180. The controller 150 is electrically connected to the in-position switch 160, the upper limit switch 170, the lower limit switch 180, the rotating drive component 121, and the lifting drive component 122, respectively. The in-position switch 160 is configured to trigger the in-position switch 160 to control the start and stop of the rotating drive component 121 when the stirring shaft 131 reaches a preset position. Exemplarily, in this embodiment, the in-position switch 160, the upper limit switch 170, and the lower limit switch 180 are contact sensors. The upper limit switch 170 and the lower limit switch 180 are used to limit the highest position and the lowest position of the lifting drive component 122. The in-position switch 160 is used to detect the preset position. When the stirring shaft 131 reaches the preset position, the rotating motor 1211 is controlled to start when the blade is advanced, and the rotating motor 1211 is controlled to stop when the blade is retracted. Specifically, the preset position is configured as follows: when the cutter head 132 is fixed to the cup cover 1412 by means of a magnetic member, and at this time the limiting boss 1321 is just located in the limiting groove 1332, it is the preset position. Figure 4 The position where the stirring assembly 130 stays is the preset position mentioned above. Specifically, the controller 150 is electrically connected to the rotating motor 1211 and the lifting motor 1221, that is, the controller 150 is used to control the rotating motor 1211 and the lifting motor 1221 to rotate and stop rotating.

[0058] Please refer to Fig.12 The second object of the present invention is to provide a control method of an ice cream machine 100, which is used to control the ice cream machine 100, comprising:

[0059] The controller 150 controls the lifting driving component 122 to start, so as to drive the stirring shaft 131 to descend;

[0060] The stirring shaft 131 continues to descend and enters the limiting groove 1332 through the guide groove 1333;

[0061] After the stirring shaft 131 descends to the preset position, the in-position switch 160 is triggered, and the in-position switch 160 sends a first control signal to control the rotation drive component 121 to start and drive the stirring shaft 131 to rotate, so that the cutter head 132 is connected to the stirring shaft 131;

[0062] The stirring shaft 131 continues to descend to allow the blade head 132 to separate from the cup body assembly 140 and enter a locked state; illustratively, after entering the locked state, the food in the cup body 1411 can be stirred.

[0063] After the lower limit switch 180 is triggered, the lower limit switch 180 sends a third control signal, and the lifting drive component 122 drives the stirring assembly 130 to rise to a preset position and then triggers the in-position switch 160, and the in-position switch 160 sends a second control signal to control the rotation drive component 121 to stop running;

[0064] The lifting drive component 122 drives the stirring assembly 130 and the fixing frame 142 to continue to rise, and the fixing frame 142 rotates relative to the cup body component 141 until the blade 132 is separated from the stirring shaft 131 and enters an unlocked state;

[0065] The lifting drive component 122 continues to rise and triggers the upper limit switch 170. The upper limit switch 170 sends a third control signal to control the lifting drive component 122 to stop running.

[0066] Please refer to Fig.12 , the cutting process of the ice cream machine 100 is as follows:

[0067] Step 1: The connector 133 is fixed to the stirring shaft 131 through a threaded connection, and the cutter head 132 is adsorbed on the bottom surface of the fixing frame 142 under the magnetic force of the magnetic member (the magnetic member is fixed on the fixing frame 142).

[0068] Step 2: The connector 133 moves downward under the drive of the lifting motor 1221. Because the cutter head 132 is attracted by the magnetic force of the magnetic part, the buckle position (with a guide in the structure) on the connector 133 is connected with the limit boss 1321 on the cutter head 132, thus completing the automatic cutting process. Then, by triggering the in-position switch 160, the rotary motor 1211 starts to rotate and drives the cutter head 132 to rotate. The cutter head 132 will complete the buckle self-locking with the connector 133, so that the cutter head 132 will not fall off during operation or sudden power failure and reset. At this time, the cutter head 132 starts to rotate and do lifting and lowering movements;

[0069] Step three: The downward movement and return to the origin of the cutter head 132 is a working cycle. When the cutter head 132 completes the downward movement and rises to the preset position, the in-position switch 160 is triggered. At this time, the rotating motor 1211 will stop rotating and continue to move upward under the drive of the lifting motor 1221. At this time, the cutter head 132 is also attracted by the magnetic part. When the cutter head 132 continues to rise, it will drive the fixed frame 142 to move upward as well. At this time, the stirring shaft 131 makes an upward and rotational movement with the cooperation of the first guide part 1421 and the second guide part 1412A, and drives the cutter head 132 to rotate under the action of the magnetic force. When the cutter head 132 rotates to a certain angle, the limiting boss 1321 on the cutter head 132 will separate from the limiting groove 1332 on the connecting head 133 to complete the unlocking. This process completes the automatic retraction of the cutter, and finally the upward movement is stopped by triggering the upper limit switch 170.

[0070] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. An ice cream machine, characterized in that: include: case; A drive assembly is installed in the housing; A stirring assembly, the stirring assembly comprising a stirring shaft and a cutter head, the driving assembly being connected to the stirring shaft; A cup body assembly connected to the housing, wherein the cutter head is disposed in the cup body assembly; The ice cream machine has a locked state and an unlocked state. The driving component drives the stirring shaft to rotate and / or lift to achieve automatic switching between the locked state and the unlocked state. The locked state is configured as: the cutter head is assembled on the stirring shaft, and the unlocked state is configured as: the cutter head is assembled in the cup body assembly.

2. The ice cream machine according to claim 1, characterized in that: The stirring assembly also includes a connecting head, which is connected to the stirring shaft and has a mounting buckle for forming a connection with the blade head.

3. The ice cream machine according to claim 2, characterized in that: The mounting buckle forms a limiting groove, and a plurality of the mounting buckles are provided, and a guide groove is formed between adjacent mounting buckles, and the guide groove is connected to the limiting groove; The cutter head has a limiting protrusion matched with the limiting groove.

4. The ice cream machine according to claim 2, characterized in that: The cup body assembly comprises a cup body part, a fixing frame and an elastic member. The fixing frame is slidably installed in the cup body part, and the elastic member abuts between the cup body part and the fixing frame.

5. The ice cream machine according to claim 4, characterized in that: The fixing frame is provided with a first guide portion, and the cup body component includes a second guide portion matched with the first guide portion, and the first guide portion is matched with the second guide portion so that the fixing frame rotates relative to the cup body component when sliding.

6. The ice cream machine according to claim 5, characterized in that: The first guide portion is configured as a spirally arranged convex strip, and the second guide portion is configured as a spirally arranged groove.

7. The ice cream machine according to claim 4, characterized in that: The cup body component includes a cup body and a cup cover connected to the cup body. The cup body assembly also includes a magnetic member connected to the fixing frame. The elastic member abuts between the fixing frame and the cup cover.

8. The ice cream machine according to claim 1, characterized in that: The driving assembly includes a rotating driving component, a lifting driving component and a mounting plate, the lifting driving component is mounted on the shell and connected to the mounting plate, the rotating driving component is mounted on the mounting plate and is drivingly connected to the stirring shaft, the rotating driving component is used to drive the stirring shaft to rotate, and the lifting driving component is used to drive the mounting plate and the stirring shaft to rise and fall.

9. The ice cream machine according to claim 8, characterized in that: The ice cream machine also includes a controller, an in-position switch, an upper limit switch and a lower limit switch. The controller is electrically connected to the in-position switch, the upper limit switch, the lower limit switch, the rotating drive component and the lifting drive component respectively. The in-position switch is configured to trigger the in-position switch to control the start and stop of the rotating drive component when the stirring shaft reaches a preset position.

10. A control method for an ice cream machine, used for controlling the ice cream machine according to any one of claims 1 to 9, characterized in that: include: The controller controls the lifting drive component to start, so as to drive the stirring shaft to descend; The stirring shaft continues to descend and enters the limiting groove through the guide groove; After the stirring shaft descends to a preset position, the in-position switch is triggered, and the in-position switch sends a first control signal to control the rotation drive component to start and drive the stirring shaft to rotate, so that the cutter head is connected to the stirring shaft; The stirring shaft continues to descend so that the cutter head is separated from the cup body assembly and enters a locked state; After the lower limit switch is triggered, the lower limit switch sends a third control signal, and the lifting drive component drives the stirring assembly to rise to the preset position and then triggers the in-position switch, and the in-position switch sends a second control signal to control the rotation drive component to stop running; The lifting drive component drives the stirring assembly and the fixing frame to continue to rise, and the fixing frame rotates relative to the cup body component until the cutter head is separated from the stirring shaft and enters an unlocked state; The lifting drive component continues to rise and triggers the upper limit switch, and the upper limit switch sends a third control signal to control the lifting drive component to stop running.

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