Chopping machine

Abstract

The utility model relates to a chopping machine which comprises a cup body, a cup cover, a cutter rotating shaft and a motor, wherein the cup cover covers the cup body; the cutter rotating shaft extends into the cup body; the motor is connected with the cutter rotating shaft; a fluctuating first limiting rail is arranged on the cutter rotating shaft in the circumferential direction, and the cutter rotating shaft is sleeved with a cutter shaft sleeve; a blade is arranged on the cutter shaft sleeve; wherein the end, close to the first limiting rail, of the cutter shaft sleeve is provided with a first sliding rail matched with the first limiting rail, the other end of the cutter shaft sleeve is provided with a fluctuant second sliding rail in the circumferential direction, and the cup cover is provided with a second limiting rail matched with the second sliding rail. When the cutter rotating shaft rotates, the cutter shaft sleeve can rotate around the cutter rotating shaft and move up and down in a reciprocating mode along the cutter rotating shaft, so that the blades fixed to the cutter shaft sleeve move up and down along the cutter rotating shaft and stir and change the plane position of rotary cutting while rotating for cutting, and the cutting efficiency and the cutting quality of the cutting machine are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of food processing devices, in particular to a chopper. Background Art

[0002] A chopper is a type of food processor that is used to chop ingredients. It is widely used in practice for chopping ingredients such as making soy milk, grinding dry powder, squeezing juice, making meat stuffing, and shaved ice.

[0003] The shredder includes a drive module and a cup body. After the user puts the food to be processed into the cup body, the drive module drives the knife shaft in the cup body to rotate, and then drives the blade to rotate quickly to chop the food in the cup body. However, the blade always rotates in a fixed position, and the cutting range of the blade is small. The contact between the blade and the food mainly depends on the food being stirred by the blade and actively moving into the cutting range of the blade. The chopping efficiency is low and the food is chopped unevenly.

[0004] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present disclosure, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Utility Model Content

[0005] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a shredder to improve the shredding quality and shredding speed.

[0006] The technical solution of the utility model is as follows:

[0007] A shredder comprises a cup body, a cup cover arranged on the cup body, a tool shaft extending into the cup body and a motor connected to the tool shaft, characterized in that: a first undulating limit rail is circumferentially arranged on the tool shaft, a tool sleeve is sleeved on the tool shaft; a blade is arranged on the tool sleeve; wherein, a first slide rail matching the first limit rail is arranged at one end of the tool sleeve close to the first limit rail, an undulating second slide rail is circumferentially arranged on the other end of the tool sleeve, and a second limit rail matching the second slide rail is arranged on the cup cover.

[0008] A further technical solution is that the first limit rail and the second limit rail are parallel to each other, the undulating first limit rail includes two crests and two troughs, and the crests and the troughs are arranged alternately.

[0009] A further technical solution is that it also includes a motor, the motor is connected to the tool shaft via a coupler, and a spline is provided on the tool shaft to cooperate with the coupler.

[0010] A further technical solution is that a first extension portion is provided on the surface of the tool shaft, a groove is formed between the first extension portion and the tool shaft, and the first limiting rail is provided in the groove.

[0011] A further technical solution is that the first extension portion extends around the tool shaft for one circle.

[0012] A further technical solution is that a second extension portion is provided on the cup cover along the axial direction of the tool shaft, and the second extension portion is in contact with the outer side of the second limiting rail.

[0013] A further technical solution is that a third extension portion is provided at one end of the tool sleeve close to the first limiting rail, and the first slide rail is provided on the inner side of the third extension portion.

[0014] A further technical solution is that a fourth extension portion is provided at one end of the tool sleeve close to the cup cover, and the second slide rail is provided on the inner side of the fourth extension portion.

[0015] A further technical solution is that a blade is circumferentially arranged on the tool shaft.

[0016] A further technical solution is that the lower end of the tool shaft is rotatably connected to the lower end of the cup body.

[0017] The beneficial technical effects of the utility model are as follows:

[0018] (1) The shredder of the utility model is provided with a tool sleeve on the tool shaft, and the position of the tool sleeve is limited by the undulating first limit rail and the second limit rail. By utilizing the relative rotation between the tool shaft, the tool sleeve and the cup cover, the tool shaft transmits thrust to the tool sleeve through the first limit rail and the second limit rail, pushing the tool sleeve to move back and forth along the tool shaft, thereby changing the shredding position of the blade on the tool sleeve. While the tool sleeve moves back and forth up and down to change the shredding position of the blade, it can stir the shredded material, thereby improving the shredding efficiency and shredding quality of the shredder.

[0019] (2) Furthermore, two wave crests and two wave troughs are alternately arranged on the first limit rail and the second limit rail, so that the tool sleeve and the tool shaft rotate one circle relative to each other, and the tool sleeve reciprocates twice along the tool shaft to stir the food and cut it back and forth. At the same time, the arrangement of the two wave crests and two wave troughs limits the number of reciprocating movements of the tool sleeve to two times, thereby preventing the frequency of the reciprocating movement of the tool sleeve from being too high, which affects the stability during operation.

[0020] (3) Furthermore, a third extension portion and a fourth extension portion are provided on the tool sleeve to limit the circumferential runout of the tool sleeve relative to the tool shaft, thereby ensuring the stability of the tool bearing during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The cross-sectional structure diagram of the shredder in the first embodiment of the utility model is shown.

[0022] Figure 2 The three-dimensional structural diagram of the tool shaft and tool sleeve of the shredder in the first embodiment of the utility model is shown.

[0023] Figure 3 The present invention shows a three-dimensional structure schematic diagram of a cup cover of a shredder in a first embodiment of the present invention when viewed from above.

[0024] Figure 4 The three-dimensional structure schematic diagram of the tool shaft of the shredder in the second embodiment of the utility model is shown.

[0025] Figure 5 The diagram shows a three-dimensional structure of a cup cover of a shredder in a second embodiment of the present invention when viewed from above.

[0026] Figure 6 The three-dimensional structural diagram of the tool sleeve of the shredder in the third embodiment of the utility model is shown.

[0027] Figure 7 The diagram shows a three-dimensional structure of a tool sleeve of a shredder in a third embodiment of the present invention when viewed from above.

[0028] Markings in the accompanying drawings:

[0029] 1. Cup cover; 11. Second limit rail; 12. Second extension; 2. Blade; 3. Tool shaft; 31. First extension; 32. Slot; 33. Spline; 34. First limit rail; 341. Wave crest; 342. Wave trough; 4. Tool sleeve; 41. First slide rail; 42. Second slide rail; 43. Third extension; 44. Fourth extension; 5. Motor; 51. Coupler; 6. Cup body. DETAILED DESCRIPTION

[0030] In order to make the purpose, features and advantages of the utility model more obvious and easy to understand, please refer to the attached drawings. It should be noted that the structures, proportions, sizes, etc. illustrated in the attached drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the utility model, so they have no technical substantive significance. Any modification of the structure, change of the proportion relationship or adjustment of the size, without affecting the effect and purpose that can be achieved by the utility model, should still fall within the scope of the technical content disclosed by the utility model.

[0031] In the description of the present invention, the orientations or positional relationships indicated by terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "top", "bottom", "inside", "outside", "axial", "radial", and "circumferential" are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0032] In the utility model, the first limit rail 34 and the second slide rail 42 have the crest 341 protruding upward and the trough 342 recessed downward. The first slide rail 41 and the second limit rail 11 have the crest 341 recessed upward and the trough 342 protruding downward.

[0033] Embodiment 1

[0034] Figure 1 The cross-sectional structure diagram of the shredder in the first embodiment of the utility model is shown. Figure 2 The three-dimensional structural diagram of the tool shaft and tool sleeve of the shredder in the first embodiment of the utility model is shown. Figure 3 The 3D structure diagram of the cup cover of the shredder in the first embodiment of the present invention when viewed from above is shown. Figure 1 , Figure 2 and Figure 3 A shredder comprises a cup body 6, a cup cover 1 arranged on the cup body 6 and a tool shaft 3 extending into the cup body 6. The lower end of the tool shaft 3 is rotatably connected to the lower end inside the cup body 6. The rotating member and the cup cover 1 jointly fix the tool shaft 3 to increase the stability of the tool shaft 3 during rotation. A first undulating limit rail 34 is circumferentially arranged on the tool shaft 3, a tool sleeve 4 is sleeved on the tool shaft 3, and a blade 2 is arranged on the tool sleeve 4. Among them, a first slide rail 41 matching the first limit rail 34 is arranged at one end of the tool sleeve 4 close to the first limit rail 34. An undulating second slide rail 42 is circumferentially arranged on the other end of the tool sleeve 4, and a second limit rail 11 matching the second slide rail 42 is arranged on the cup cover 1.

[0035] When the tool shaft 3 rotates, the first limit rail 34 transmits torque to the first slide rail 41 through the interaction of friction force, driving the tool sleeve 4 to rotate around the tool shaft 3. Affected by the resistance, the rotation speed of the tool sleeve 4 will be lower than that of the tool shaft 3, and the first slide rail 41 slides along the track surface of the first limit rail 34, so that the tool sleeve 4 rotates around the tool shaft 3 while sliding along the axial direction of the tool shaft 3. When the tool sleeve 4 slides to the highest point of the first limit rail 34, that is, the lowest point of the trough 342 of the first slide rail 41 slides to the highest point of the crest 341 of the first limit rail 34, under the influence of inertia force, the tool sleeve 4 will continue to move upward along the tool shaft 3 until the second slide rail 42 and the second limit rail 11 are matched. The sliding between the second slide rail 42 and the second limit rail 11 is used to limit the tool sleeve 4 from continuing to move upward, and when the top of the wave crest 341 of the second slide rail 42 slides from the wave crest 341 of the second limit rail 11 to the wave trough 342, the tool sleeve 4 is pushed to move downward along the tool shaft 3. The tool shaft 3 is continuously rotated, and the tool sleeve 4 rotates and reciprocates along the axial direction of the tool shaft 3, that is, the blade 2 fixed on the tool sleeve 4 rotates and shreds in the cup body 6 while reciprocating up and down along the tool shaft 3, stirring and changing the plane position of the rotating shredder, thereby improving the shredding efficiency and shredding quality of the shredder.

[0036] The specific structures of the first limiting rail 34, the second limiting rail 11, the first slide rail 41 and the second slide rail 42 are described as follows:

[0037] Please refer to Figure 2 and Figure 3 , the first limit rail 34 and the second limit rail 11 are parallel to each other, and the undulating first limit rail 34 includes two crests 341 and two troughs 342, and the crests 341 and the troughs 342 are arranged alternately. The corresponding second limit rail 11, the first slide rail 41 and the second slide rail 42 all include two crests 341 and two troughs 342, and the crests 341 and the troughs 342 are arranged alternately. When the first slide rail 41 slides one circle along the first limit rail 34, or the second slide rail 42 slides one circle along the second limit rail 11, the tool sleeve 4 will reciprocate up and down along the tool shaft 3 twice to stir the food and change the cutting position of the blade 2 on the tool sleeve 4. At the same time, the first slide rail 41 is limited to slide one circle along the first limit rail 34, or the second slide rail 42 slides one circle along the second limit rail 11, and the number of reciprocating up and down movements of the tool sleeve 4 is limited to two times, so as to avoid the frequency of the up and down movement of the tool sleeve 4 being too high, which affects the running stability.

[0038] When the bottom of the trough 342 of the first slide rail 41 in this example moves to the top of the crest 341 of the first limit rail 34, the top of the crest 341 of the second slide rail 42 moves to the top of the crest 341 of the second limit rail 11. That is, the tool sleeve 4 is always restricted by the first limit rail 34 or the second limit rail 11 on the tool shaft 3, and is driven to move up and down along the tool shaft 3, ensuring the continuous execution of the action.

[0039] The specific structure of the motor 5, the tool shaft 3 and the tool sleeve 4 is described below:

[0040] Please refer to Figure 1 The shredder also includes a motor 5, which is connected to the cutter shaft 3 through a coupler 51. The cutter shaft 3 is provided with a spline 33 to cooperate with the coupler 51, and the coupler 51 transmits the torque output by the motor 5 to the cutter shaft 3. Among them, the torque output by the motor 5 is stable and reliable, with a fast response speed. It is driven by electricity and is suitable for home use. Blades 2 are respectively arranged circumferentially on the cutter shaft 3 and the cutter sleeve 4. Multiple groups of blades 2 rotate together to cut, thereby improving the shredding efficiency of the shredder.

[0041] The specific workflow of this embodiment is as follows:

[0042] Under the action of gravity, the tool sleeve 4 moves to the bottom along the tool shaft 3, and the first slide rail 41 contacts the first limit rail 34. During shredding, the motor 5 drives the tool shaft 3 to rotate. Through the interaction of friction, the first limit rail 34 transmits torque to the first slide rail 41, driving the tool sleeve 4 to rotate around the tool shaft 3 for shredding and stirring. Affected by the resistance, the rotation speed of the tool sleeve 4 will be lower than that of the tool shaft 3. The first slide rail 41 slides along the undulating surface of the first limit rail 34, so that while the tool sleeve 4 rotates around the tool shaft 3, the tool sleeve 4 slides up and down along the axial direction of the tool shaft 3. When the trough 342 of the first slide rail 41 slides along the trough 342 of the first limit rail 34 to the top of the crest 341 of the first limit rail 34, under the influence of inertia, the tool sleeve 4 will continue to move upward along the tool shaft 3 until the second slide rail 42 contacts the second limit rail 11. Then the second slide rail 42 slides along the second limit rail 11, and the tool sleeve 4 moves up and down along the ups and downs of the second limit rail 11 until the wave crest 341 of the second slide rail 42 moves to the bottom of the wave trough 342 of the second limit rail 11. Under the influence of the inertial force, the tool sleeve 4 will continue to move downward along the tool shaft 3. Until the first slide rail 41 and the first limit rail 34 come into contact, the tool sleeve 4 moves up and down along the ups and downs of the first limit rail 34. The tool shaft 3 is continuously rotated, and the tool sleeve 4 rotates and reciprocates along the axial direction of the tool shaft 3, driving the blade 2 fixed on the tool sleeve 4 to rotate and move up and down along the tool shaft 3.

[0043] Embodiment 2

[0044] Figure 4 The three-dimensional structure schematic diagram of the tool shaft of the shredder in the second embodiment of the utility model is shown.

[0045] Figure 5 The 3D structure diagram of the cup cover of the shredder in the second embodiment of the present invention when viewed from above is shown. Figure 2 , Figure 4 and Figure 5 Based on the first embodiment, the second embodiment discloses a tool shaft 3 and a cup cover 1, wherein the surface of the tool shaft 3 is provided with a first extension portion 31, a slot 32 is formed between the first extension portion 31 and the tool shaft 3, and a first limit rail 34 is provided in the slot 32. When the first slide rail 41 slides with the first limit rail 34, the first slide rail 41 will enter the slot 32, and then the slot 32 will limit the circumferential runout of the first slide rail 41 around the tool shaft 3, that is, limit the circumferential runout of the tool sleeve 4 around the tool shaft 3, thereby increasing the stability of the shredder during operation.

[0046] Along the axial direction of the tool shaft 3, the cup cover 1 is provided with a second extension portion 12, and the second extension portion 12 fits the outer side of the second limit rail 11. When the second slide rail 42 cooperates with the second limit rail 11, the outer side of the second slide rail 42 will be restricted from moving by the second extension portion 12, that is, the circumferential runout of the tool sleeve 4 around the tool shaft 3 is restricted, thereby increasing the stability of the shredder during operation.

[0047] The first extension portion 31 and the second extension portion 12 may be an annular structure close to the first slide rail 41 or the second slide rail 42. The first extension portion 31 and the second extension portion 12 may also be other structures close to the first slide rail 41 or the second slide rail 42, and the number of the other structures may be one group or multiple groups, so as to achieve the effect of close to the first slide rail 41 or the second slide rail 42, and limit the circumferential runout of the tool sleeve 4 around the tool shaft 3.

[0048] Embodiment 3

[0049] Figure 6 The three-dimensional structural diagram of the tool sleeve of the shredder in the third embodiment of the utility model is shown.

[0050] Figure 7 The diagram shows a schematic diagram of the three-dimensional structure of the tool sleeve of the shredder in the third embodiment of the present invention when viewed from above. Figure 6 and Figure 7Based on the first embodiment, the third embodiment discloses a tool sleeve 4, wherein the tool sleeve 4 is provided with a third extension portion 43 at one end close to the first limit rail 34, and the first slide rail 41 is provided inside the third extension portion 43. When the first slide rail 41 and the first limit rail 34 cooperate, the first limit rail 34 will enter the inside of the third extension portion 43, and the inside of the third extension portion 43 will approach the outside of the first limit rail 34, that is, the circumferential runout of the tool sleeve 4 relative to the tool shaft 3 is limited, thereby increasing the stability of the shredder during operation.

[0051] The end of the tool sleeve 4 close to the cup cover 1 is provided with a fourth extension portion 44, and the second slide rail 42 is provided on the inner side of the fourth extension portion 44. When the second slide rail 42 cooperates with the second limit rail 11, the second limit rail 11 will enter the inner side of the fourth extension portion 44, and the inner side of the fourth extension portion 44 will approach the outer side of the second limit rail 11, that is, the circumferential runout of the tool sleeve 4 relative to the tool shaft 3 is limited, thereby increasing the stability of the shredder during operation.

[0052] It can be seen that in the above-mentioned shredder, when the tool shaft 3 rotates, the tool sleeve 4 will rotate around the tool shaft 3 and move back and forth along the tool shaft 3, so that the blade 2 fixed on the tool sleeve 4 rotates and shreds while moving up and down along the tool shaft 3, stirring and changing the plane position of the rotating shredder, thereby improving the shredding efficiency and shredding quality of the shredder.

[0053] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0054] The above embodiments only express several implementation methods of the utility model, and the descriptions are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A shredder, comprising a cup body, a cup cover arranged on the cup body, a tool shaft extending into the cup body, and a motor connected to the tool shaft, characterized in that: The tool shaft is provided with an undulating first limit rail in the circumferential direction, and the tool shaft is sleeved with a tool sleeve; The tool sleeve is provided with a blade; Among them, one end of the tool sleeve close to the first limit rail is provided with a first slide rail matching the first limit rail, the other end of the tool sleeve is circumferentially provided with an undulating second slide rail, and the cup cover is provided with a second limit rail matching the second slide rail.

2. The shredder according to claim 1, characterized in that: The first position-limiting rail and the second position-limiting rail are parallel to each other, and the undulating first position-limiting rail includes two wave crests and two wave troughs, and the wave crests and the wave troughs are arranged alternately.

3. The shredder according to claim 1, characterized in that: It also includes a motor, which is connected to the tool shaft via a coupler, and a spline is provided on the tool shaft to match the coupler.

4. The shredder according to claim 1, characterized in that: A first extending portion is disposed on the surface of the tool shaft, a slot is formed between the first extending portion and the tool shaft, and the first limiting rail is disposed in the slot.

5. The shredder according to claim 4, characterized in that: The first extension portion extends around the tool rotation axis.

6. The shredder according to claim 1, characterized in that: A second extension portion is provided on the cup cover along the axial direction of the tool shaft, and the second extension portion is in contact with the outer side of the second limiting rail.

7. The shredder according to claim 1, characterized in that: A third extending portion is disposed at one end of the tool sleeve close to the first limiting rail, and the first slide rail is disposed on the inner side of the third extending portion.

8. The shredder according to claim 1, characterized in that: A fourth extension portion is disposed at one end of the tool sleeve close to the cup cover, and the second slide rail is disposed on the inner side of the fourth extension portion.

9. The shredder according to claim 1, characterized in that: A blade is circumferentially arranged on the tool shaft.

10. The shredder according to claim 1, characterized in that: The lower end of the tool shaft is rotatably connected to the lower end of the cup body.

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