Blender and dehydration method thereof

Abstract

A blender according to the present application includes a blender main body including an outer cylinder, a pulverizing blade, and a blade driving portion for rotating the pulverizing blade, an inner cylinder unit including an inner cylinder provided inside the outer cylinder with the pulverizing blade located inside the inner cylinder, the inner cylinder being formed with a side opening portion, and an inner cylinder driving portion for rotating the inner cylinder, and a dehydration unit including a dehydration cylinder covering the side opening portion while surrounding the inner cylinder so that a stirring object is accommodated in the inner cylinder, and a dehydration cylinder speed changer for changing the rotation speed of the dehydration cylinder, and further, an outer side surface of the inner cylinder is protruded with a scraper for scraping off a clogging component of the stirring object clogging the dehydration hole of the dehydration cylinder.

Description

[0001] This application is a divisional application of Chinese Patent Application No. CN202080052500.3 (corresponding international application No. PCT / KR2020 / 009470), with an international filing date of July 17, 2020, entitled "A Mixer and a Dehydration Method Thereof". Technical Field

[0002] This invention relates to a mixer and a dehydration method thereof, specifically to a mixer and a dehydration method thereof for mixing, crushing and dehydrating an object to be mixed for juicing. Background Technology

[0003] Even if existing mixers pulverize the object being mixed using pulverizing blades, depending on the type of object being mixed, there will be blockage components that are larger than the dehydration holes of the dehydration cylinder. Because these blockage components will clog the dehydration holes of the rotating dehydration cylinder, there is a limitation that the object being mixed cannot be further dehydrated.

[0004] That is, when the object to be stirred contains seeds, even if the seeds are crushed by the pulverizing blades, there may still be particles larger than the dehydration holes of the dehydration cylinder. Or, even if there are no seeds, there may still be sticky clumps after being crushed by the pulverizing blades. Because these seeds or clumps block the dehydration holes of the dehydration cylinder and cannot be discharged, the existing mixers have the limitation of not being able to achieve dehydration smoothly through the dehydration holes of the dehydration cylinder. Summary of the Invention

[0005] Technical issues

[0006] The present invention is proposed to solve the above-mentioned problems, and aims to provide a stirring machine and a dehydration method thereof for removing the clogging components of the stirred object that block the dehydration hole of the dehydration cylinder.

[0007] Problem Solution

[0008] To achieve the objectives described above, a mixer according to an embodiment of the present invention includes: a mixer body, the mixer body including an outer cylinder, pulverizing blades, and a blade drive unit, the blade drive unit being used to rotate the pulverizing blades; an inner cylinder unit including an inner cylinder and an inner cylinder drive unit, the inner cylinder being disposed inside the outer cylinder, the pulverizing blades being located inside the inner cylinder, a side opening being formed inside the inner cylinder, the inner cylinder drive unit being used to rotate the inner cylinder; and a dehydration unit including a dehydration cylinder and a dehydration cylinder speed change device, the dehydration cylinder covering the side opening while surrounding the inner cylinder so that the object to be mixed is contained in the inner cylinder, and a dehydration hole being formed on the dehydration cylinder, the dehydration cylinder speed change device being used to change the rotational speed of the dehydration cylinder, and furthermore, a scraper protruding from the outer side of the inner cylinder for scraping off the clogging components of the object to be mixed that are blocking the dehydration holes of the dehydration cylinder.

[0009] Invention Effects

[0010] According to the mixer and dehydration method of the present invention, by constructing a scraper on the outer side of the inner cylinder and creating a rotational speed difference between the inner cylinder and the dehydration cylinder, the mixer can improve the dehydration effect of the mixer by scraping off the object that is blocking the dehydration holes of the dehydration cylinder. Attached Figure Description

[0011] Figure 1 and Figure 2 This is a diagram showing a mixer according to the present invention.

[0012] Figure 3 It is shown Figure 1 A diagram of the inner drum of a mixer.

[0013] Figure 4 It is shown Figure 1 A diagram of the dehydration drum of a mixer.

[0014] Figure 5 It is shown in Figure 3 The diagram shows the dehydration cylinder inserted into the inner cylinder.

[0015] Figure 6 This is a view showing a longitudinal section of a mixer according to an embodiment of the present invention.

[0016] Figure 7 This is a diagram showing a longitudinal section of a mixer according to another embodiment of the present invention.

[0017] Figure 8 It is shown Figure 6 and Figure 7 An enlarged view of part A.

[0018] Figure 9 It is shown Figure 6An enlarged side view of part B.

[0019] Figure 10 It is shown Figure 9 Another example diagram of Part B.

[0020] Figure 11 This is a schematic diagram showing a longitudinal section of a mixer according to another embodiment of the present invention.

[0021] Figure 12 It is shown in Figure 11 A schematic diagram of another example of a shaft connection component configured based on a mixer.

[0022] Figure 13 This is a flowchart illustrating a dehydration method using a mixer according to the present invention. Detailed Implementation

[0023] The invention will now be described in detail with reference to the exemplary accompanying drawings. It should be noted that when adding reference numerals to components in the various drawings, the same reference numerals are used as much as possible for the same components, even if they are indicated in different drawings. Furthermore, in describing the invention in detail, detailed descriptions of related known structures or functions will be omitted if they are considered to deviate from the spirit of the invention.

[0024] Figure 1 and Figure 2 This is a diagram showing a mixer according to the present invention. Figure 3 and Figure 4 It is shown Figure 1 Diagram of the inner drum and dewatering drum of a mixer. Figure 5 It is shown in Figure 3 The diagram shows the dehydration cylinder inserted into the inner cylinder.

[0025] also, Figure 6 and Figure 7 This is a schematic diagram showing a longitudinal section of a mixer according to various embodiments of the present invention.

[0026] Referring to the accompanying drawings, the mixer according to the present invention includes a mixer body 100, an inner cylinder unit 200, and a dehydration unit 500.

[0027] The mixer body 100 may include an outer cylinder 110, a crushing blade 120, and a blade drive unit 130.

[0028] Specifically, the outer cylinder 110 has an inner cylinder 210 of the inner cylinder unit 200 inside, and the outer cylinder 110 has an open top structure.

[0029] Furthermore, the outer cylinder 110 is supported by a cylinder support housing 300, which has an overall 'U' shape as shown in the attached drawings. At this time, the mixer cover 140 for covering the outer cylinder 110 can be rotatably mounted on the cylinder support housing 300.

[0030] Meanwhile, a discharge pipe 112 may be formed at the lower part of the outer cylinder 110 so that the liquid after dehydration of the object being stirred can be discharged to the outside. An on / off valve 112a is installed on the discharge pipe 112.

[0031] Furthermore, the shredding blade 120 is installed inside the outer cylinder 110 and performs a shredding function on the object to be stirred inside the outer cylinder 110 when it rotates. Here, the object to be stirred refers to the food that is shredded by the operation of the mixer.

[0032] Meanwhile, the blade drive unit 130, as a structure that provides driving force for the rotating crushing blade 120, may have a blade rotation shaft 131 and a blade drive motor M1.

[0033] The blade rotation shaft 131 is vertically connected to the lower part of the crushing blade 120, and the blade drive motor M1 is connected to the blade rotation shaft 131.

[0034] That is, the blade rotation shaft 131 is connected to the center of the crushing blade 120 and extends longitudinally. By connecting the crushing blade 120 and the blade drive motor M1, the rotational driving force of the blade drive motor M1 can be transmitted to the crushing blade 120, thereby driving the crushing blade 120 to rotate when the blade drive motor M1 is running.

[0035] At this time, the blade rotation shaft 131 and the blade drive motor M1 can be connected through the first synchronous belt T1 as a medium.

[0036] On the other hand, the inner cylinder unit 200 may include an inner cylinder 210 and an inner cylinder drive unit 220.

[0037] The inner cylinder 210 is located inside the outer cylinder 110, and a crushing blade 120 is installed inside it. It has an open upper structure and a blade drive unit 130 passes through the lower part.

[0038] In addition, the inner cylinder 210 may form a protrusion 211 on its inner side to obstruct the agitated object that is crushed and rotated by the crushing blade 120.

[0039] Meanwhile, the inner cylinder drive unit 220 is connected to the inner cylinder 210 to perform the function of rotating the inner cylinder 210, and it is set independently from the blade drive unit 130 for rotating and driving the crushing blade 120.

[0040] Specifically, the inner cylinder drive unit 220 may include an inner cylinder rotating shaft 222 and an inner cylinder drive motor M2.

[0041] The inner cylinder rotating shaft 222 is vertically connected to the lower part of the inner cylinder 210, and the inner cylinder drive motor M2 is connected to the inner cylinder rotating shaft 222.

[0042] That is, the inner cylinder rotating shaft 222 is connected to the lower part of the inner cylinder 210 and extends longitudinally. By connecting the inner cylinder 210 and the inner cylinder driving motor M2, the rotational driving force of the inner cylinder driving motor M2 can be transmitted to the inner cylinder 210 so that the inner cylinder 210 can be rotated when the inner cylinder driving motor M2 is running.

[0043] At this time, the inner cylinder rotating shaft 222 and the inner cylinder drive motor M2 can be connected through the second synchronous belt T2 as a medium.

[0044] For reference, the blade drive unit 130 and the inner cylinder drive unit 220 can naturally be controlled by an electrically connected controller (not shown).

[0045] In addition, existing mixers have blades that rotate in only one direction, causing the object being mixed to rotate continuously in only one direction within the mixing drum. This results in the object being pushed against the inner side of the mixing drum, remaining in a wall-like state, and unable to return to the blades, thus significantly reducing the mixing performance.

[0046] Of course, existing mixers also form protrusions on the inner wall of the mixing drum, which causes the object being mixed to generate a certain degree of vortex. However, this is also a regular flow, so it still has the limitation of not being able to fully crush the object being mixed.

[0047] Therefore, in order to make the object to be stirred in the inner cylinder 210 flow irregularly, the inner cylinder drive unit 220 can be controlled by a controller to change the rotation of the inner cylinder 210 when stirring the object to be stirred.

[0048] In one specific embodiment, the controller controls the blade drive unit 130 and the inner cylinder drive unit 220 to make the crushing blade 120 and the inner cylinder 210 rotate in opposite directions.

[0049] At this time, the controller repeatedly turns the power supply of the inner cylinder drive unit 220 on and off, so that when the power supply is off, the inner cylinder 210 rotates forward without power and then reverses through the linkage with the rotational force of the object being stirred by the crushing blade 120.

[0050] That is, the controller controls the blade drive unit 130 and the inner cylinder drive unit 220, repeatedly turning the power supply of the inner cylinder drive unit 220 on and off while the crushing blade 120 and the inner cylinder 210 are rotating in opposite directions. Accordingly, when the power supply of the inner cylinder drive unit 220 is on, the inner cylinder 210 rotates in reverse (in the opposite direction to the crushing blade 120), and when the power supply of the inner cylinder drive unit 220 is off, the inner cylinder 210 rotates without power and its speed gradually decreases, and then rotates forward (in the same direction as the crushing blade 120) by the rotational force of the object being stirred by the crushing blade 120.

[0051] In other words, the inner cylinder 210 only receives driving force from the inner cylinder drive unit 220 and reverses direction when the controller turns on the power to the inner cylinder drive unit 220. When the controller turns off the power to the inner cylinder drive unit 220, it rotates due to inertia without receiving driving force from the inner cylinder drive unit 220, and then rotates forward in conjunction with the rotational force of the object being stirred.

[0052] In particular, in order to disrupt the equilibrium of the object being stirred inside the inner cylinder 210, the controller can control the inner cylinder drive unit 220 to stir the object being stirred in a pattern of repeatedly reversing and stopping in the opposite direction to the rotation direction of the crushing blade 120 or in a pattern of changing speed after reversing.

[0053] As another embodiment, although not shown in the drawings, the inner cylinder drive unit 220 may have a DC motor and a switching circuit, or an AC motor and an inverter, so that the inner cylinder 210 can be rotated forward or backward by the driving force of the inner cylinder drive unit 220 under the control of the controller.

[0054] That is, by using the switching circuit or inverter of the inner cylinder drive unit 220, the inner cylinder 210 can be rotated not only by reversing the inner cylinder 210, but also by obtaining driving force from the inner cylinder drive unit 220 to drive the inner cylinder 210 to rotate in the forward direction.

[0055] As described above, the mixer according to the present invention controls the inner cylinder drive unit 220 by a controller so as to change the rotation direction of the inner cylinder 210 while stirring the object to be stirred. In particular, by repeatedly turning the power supply of the inner cylinder drive unit 220 on and off by the controller, the rotation of the inner cylinder 210 can be changed such that it stops after a predetermined time of reversal and then stops again after a predetermined time of reversal. This can disrupt the equilibrium state of the object to be stirred, so that the object to be stirred will not accumulate on the inner side of the inner cylinder 210 like a wall, but can return to the crushing blade 120 rotating in the center of the inner cylinder 210, thereby significantly improving the crushing performance.

[0056] That is, the mixer according to the present invention is configured to disrupt the equilibrium state of the object to be mixed, and by disrupting the object to be mixed, which is maintained in a wall-like shape on the inner side of the inner cylinder 210, the crushing performance of the object to be mixed can be improved.

[0057] Specifically, during the stirring process, the object being stirred will move toward the inner side of the inner cylinder 210 due to the centrifugal force caused by the rotation of the crushing blade 120. At this time, if the particles of the object being stirred form a force balance, they will stop moving and will not move any further. Consequently, they cannot move toward the crushing blade 120 and will not be further crushed.

[0058] However, the balance of forces between the particles of the object to be stirred can be changed to an unbalanced force by changing the rotation direction of the inner cylinder 210 in the mixer according to the invention, or by repeatedly changing the rotation speed of the inner cylinder 210 after reversing, causing the particles to flow again, and during this flow, the object to be stirred moves toward the crushing blade 120 and continues to be crushed.

[0059] Furthermore, when the mixer according to the invention rotates the crushing blade 120 and the inner cylinder 210 in opposite directions in the blade drive section 130 and the inner cylinder drive section 220, or, especially in the case of a mode in which the inner cylinder 210 repeatedly reverses and then stops or changes the rotation speed after reversing, the crushing effect on the object to be mixed can be further increased depending on the shape and structure of the protrusion 211.

[0060] Specifically, the protrusion 211 may be in the shape of a spiral protrusion that can guide the object being stirred to flow downward in a spiral, so that the object being stirred rotates and flows downward in the opposite direction to the rotation direction of the crushing blade 120.

[0061] Specifically, the flow of the object being stirred, which rotates unidirectionally through the pulverizing blade 120, is observed as follows: because the pulverizing blade 120 is arranged on the lower inner side of the inner cylinder 210, the object being stirred is pushed to the inner side of the inner cylinder 210 as the pulverizing blade 120 rotates, and then flows upward along the inner side of the inner cylinder 210. Therefore, the object being stirred, which flows upward by obtaining the centrifugal force described above, essentially does not flow towards the side of the pulverizing blade 120 arranged on the lower inner side of the inner cylinder 210.

[0062] Therefore, in order to direct the object to be stirred as described above toward the pulverizing blade 120 arranged on the lower side of the inner cylinder 210, when the pulverizing blade 120 and the inner cylinder 210 rotate in opposite directions, the protrusion 211 is formed into a spiral protrusion shape, so that the object to be stirred rotates in the opposite direction to the rotation direction of the pulverizing blade 120 and flows downward, thereby guiding the object to be stirred to flow downward in a spiral.

[0063] That is, the object to be mixed, which flows in a unidirectional rotation to the inner side of the inner cylinder, collides with the spiral protrusions rotating in the opposite direction and flows downward along the spiral structure of the spiral protrusions, thereby flowing to the side of the crushing blades 120 arranged on the lower inner side of the inner cylinder 210, thereby further increasing the crushing effect of the mixer.

[0064] On the other hand, the dehydration unit 500 is configured to dehydrate the pulverized object after it has been pulverized by the pulverizing blade 120, that is, to separate the juice from the object.

[0065] The dehydration unit 500 may include a dehydration cylinder 510.

[0066] At this time, a side opening 210a is formed on the side of the inner cylinder 210 so that the inside can communicate with the outside. The dewatering cylinder 510 is used to block the side opening 210a of the inner cylinder 210, and a dewatering hole 510a is formed on the side of the inner cylinder 210.

[0067] That is, the dehydration cylinder 510 has a structure that surrounds the inner cylinder 210 to block the side opening 210a, so that the stirring object contained in the inner cylinder 210 cannot flow to the outside of the inner cylinder 210 through the side opening 210a of the inner cylinder 210.

[0068] Furthermore, the side opening 210a can specifically be located at a predetermined height from the side of the inner cylinder 210. That is, the inner cylinder 210, as the lower part of the side opening 210a, preferably has a liquid-containing wall 210b formed at the lower part of the side, because when stirring the object to be stirred, a small amount of liquid (e.g., additionally supplied water or juice produced from the object to be stirred during pulverization) can improve the stirring effect.

[0069] Of course, even though the liquid-containing wall 210b is formed on the lower side of the inner cylinder 210, since the rotation speed when dehydrating the object being stirred is much faster than the rotation speed of the inner cylinder 210 when crushing the object being stirred, the object being stirred that has already been crushed during the crushing process can easily move to the upper side along the inner side of the liquid-containing wall 210b. Thus, it can be moved sufficiently to the side opening 210a, which is the upper side of the liquid-containing wall 210b, and the juice can be dehydrated through the dehydration hole 510a of the dehydration cylinder 510 that covers the side opening 210a.

[0070] As an example, the liquid containment wall 210b has a height between 20% and 50% of the height of the inner cylinder 210. If it is less than 20% of the height of the inner cylinder 210, the amount of liquid is too small to improve the stirring effect. If it is more than 50% of the height of the inner cylinder 210, the juice generated from the object being stirred cannot pass over the liquid containment wall 210b and therefore cannot flow into the dehydration cylinder 51, thus hardly achieving the dehydration effect.

[0071] The dewatering unit 500, which includes the inner cylinder 210 and the dewatering cylinder 510 as described above, can dewater the agitated object pulverized by the pulverizing blade 120 by rotating the inner cylinder 210 and the dewatering cylinder 510 together in the same direction.

[0072] However, even if the object to be stirred is crushed by the crushing blade 120, depending on the type of object to be stirred, there may be a blockage component larger than the dehydration hole 510a of the dehydration cylinder 510. This results in the limitation that the object to be stirred may block the dehydration hole 510a of the dehydration cylinder 510, making it impossible to further dehydrate the object to be stirred.

[0073] That is, when the object to be stirred contains seeds, even if the seeds are crushed by the crushing blade 120, there may be particles larger than the dehydration hole 510a of the dehydration cylinder 510. Or, even if it does not contain seeds, it may have sticky lumps with considerable stickiness after being crushed by the crushing blade 120. Since these seeds or sticky lumps cannot pass through the dehydration hole 510a of the dehydration cylinder 510 and block the dehydration hole 510a, there is a problem that the dehydration effect cannot be achieved smoothly through the dehydration hole 510a of the dehydration cylinder 510.

[0074] For reference, in this specification, seeds or mucus lumps that act as components that block the dehydration pores 510a during the dehydration process of the object being stirred are referred to as the blocking components of the object being stirred.

[0075] To solve the above problems, the present invention forms a scraper 214 on the outer side of the inner cylinder 210.

[0076] The scraper 214 is formed to protrude from the outer side of the inner cylinder 210. When there is a speed difference between the inner cylinder 210 and the dehydration cylinder 510, it can scrape off the blocking components of the stirring object that are blocking the dehydration hole 510a of the dehydration cylinder 510.

[0077] That is, when there is a speed difference between the inner cylinder 210 and the dehydration cylinder 510, the scraper 214 of the inner cylinder 210 will scrape off the blocking components of the stirring object that are blocking the dehydration hole 510a of the dehydration cylinder 510 and protruding from the inner side of the dehydration cylinder 510 and fall from the inner side of the dehydration cylinder 510.

[0078] Specifically, the scraper 214 is formed longitudinally from the outer side of the inner cylinder 210 and has a structure that protrudes into the inner side of the dewatering cylinder 510. The scraper 214 can scrape off the clogging components of the agitated object stuck in the dewatering hole 510a or the inner side of the dewatering cylinder 510 from the entire part of the dewatering cylinder 510 by means of the structure described above.

[0079] Furthermore, multiple side openings 210a can be formed laterally from the side of the inner cylinder 210, thereby improving the dehydration performance of the object being stirred.

[0080] Furthermore, multiple scrapers 214 can be provided between multiple side openings 210a, so that, as will be described later, even if the speed difference between the inner cylinder 210 and the dehydration cylinder 510 is maintained for only a short time, the clogging components of the stirred object can be scraped off from the entire part of the dehydration cylinder 510. At the same time, by rotating multiple scrapers 214 and scraping multiple times, the clogging components of the stirred object that are not easy to fall off can be thoroughly scraped off.

[0081] In addition, such as Figure 10 As shown, the protrusion height of the scraper 214 protruding from the outer side of the inner cylinder 210 is lower than the protrusion height of the protrusion 211 protruding from the inner side of the inner cylinder 210, so as to form a structure in which the dewatering cylinder 510 covers the side opening 210a of the inner cylinder 210 to prevent the object to be stirred from escaping to the outside from the side opening 210a, and in practice, a slightly protruding height is preferred.

[0082] On the other hand, in this invention, in order to create a speed difference between the inner cylinder 210 and the dehydration cylinder 510, such as... Figure 6 , 9 As shown in Figure 10, as one embodiment, the dehydration unit 500 may simultaneously include the dehydration cylinder 510 and the dehydration cylinder speed change device as described above.

[0083] At this time, the dehydration drum speed change device may include a dehydration drum speed limiting part 520 for limiting the rotational speed of the dehydration drum.

[0084] The dehydration cylinder speed limiting part 520 is configured to limit the rotational speed of the dehydration cylinder 510, that is, it is configured to stop or slow down the rotation of the dehydration cylinder 510.

[0085] However, the rotational motion of the dehydration cylinder 510 will be described first here.

[0086] The dehydration cylinder 510 has a structure that surrounds the inner cylinder 210 to cover the side opening 210a. With this structure, the dehydration cylinder 510 can rotate along with the inner cylinder 210 when it rotates, even without providing a separate rotational driving force.

[0087] Specifically, the object to be stirred, which rotates along with the inner cylinder 210, rubs against the inner side of the dehydration cylinder 510 through the side opening 210a of the inner cylinder 210, causing the dehydration cylinder 510 to rotate in the same direction as the object to be stirred, thus rotating in the same direction as the inner cylinder 210.

[0088] The rotational speed of the dehydration cylinder 510, which rotates in this manner, is limited by the dehydration cylinder speed limiting part 520, the structure of which is as follows.

[0089] like Figures 6 to 9 As shown, as an example, the dehydration drum speed limiting part 520 may include a stop pin 521 and a pin drive member 522.

[0090] At this time, the dehydration cylinder 510 forms a plurality of stop grooves 510b along its lower edge. When the stop pin 521 rises toward the stop groove 510b side of the dehydration cylinder 510 and is inserted into the stop groove 510b and is stuck, the rotation of the dehydration cylinder 510 stops.

[0091] Furthermore, the pin drive member 522 is configured to raise and lower the stop pin 521. As an example, an electromagnetic cylinder can be used, but it is not limited to this. Moreover, any existing drive member capable of stably raising and lowering the stop pin 521 can be utilized.

[0092] For reference, when the pin drive component 522 is an electromagnetic cylinder, the stop pin 521 may be a cylinder rod or a component connected to the cylinder rod.

[0093] On the other hand, the stop pin 521 is not as... Figure 6 and Figure 9 The structure shown, connected to the pin drive member 522, serves as another example, such as... Figure 10 As shown, the stop pin 521 can be constructed as a component independent of the pin drive component 522.

[0094] Specifically, a stop hole 110c is formed at the lower part of the outer cylinder 110 for raising and lowering the stop pin 521, and a pin receiving bracket 111 can be formed from the lower part for receiving the stop pin 521 on the lower side of the stop hole 110c.

[0095] In addition, the dehydration cylinder speed limiting part 520 may also include an elastic member 523.

[0096] The elastic member 523 is disposed between the head of the stop pin 521 and the lower surface of the outer cylinder 110. When the upward pressure on the pin drive member 522 of the stop pin 521 is released, it provides elastic force so that the stop pin 521 can descend while blocking the stop hole 110c.

[0097] That is, when the pin drive member 522 is operated to extend the cylinder rod 522a while raising the lower end of the stop pin 521 through the bracket hole 111a, i.e., pushing the head of the stop pin 521 to rise, the elastic member 523 is compressed, and the stop pin 521 rises through the stop hole 110c of the outer cylinder 110 and inserts into the stop groove 510b of the dehydration cylinder 510, thereby stopping the rotation of the dehydration cylinder 510. Conversely, when the cylinder rod 522a retracts, the upward pressure on the stop pin 521 is released, thereby the elastic member 523 expands and pushes the head of the stop pin 521 down, causing the stop pin 521 to disengage from the stop groove 510b of the dehydration cylinder 510. At this time, the stop pin 521 is not completely disengaged from the stop hole 110c, but remains in the state where the upper part remains in the stop hole 110c. Thus, when the outer cylinder 110 moves from the cylinder support shell ( Figure 1 When the 300) rotates and disengages, it can prevent the liquid dehydrated from the object being stirred from flowing out through the stop hole 110c of the outer cylinder 110. Furthermore, in a vacuum mixer in which vacuum operation can be performed, it can prevent the vacuum inside the outer cylinder 110 from being released.

[0098] For reference, in order to allow the stop pin 521 to be smoothly and easily inserted into the stop groove 510b of the dehydration cylinder 510, the controller controls the inner cylinder drive unit 220 to slow down the rotation speed of the inner cylinder 210 to a certain extent in order to reduce the rotation speed of the object being stirred. Naturally, the dehydration cylinder 510 is also linked to this and forms a slow rotation during the process.

[0099] In addition, the dehydration unit 500 may also include a dehydration cylinder support rail 524.

[0100] The dehydration cylinder support rail 524 is located inside the outer cylinder 110 and has a support structure for sliding and rotating the lower edge of the dehydration cylinder 510.

[0101] Such a dehydration cylinder support rail 524 only needs to be constructed so that the dehydration cylinder 510 can rotate smoothly, without shaking, and stably. Its specific structure is not limited and any existing structure can be used.

[0102] Additionally, although not shown in the figure, the dehydration cylinder speed limiting part 520 may include a friction pad and a pad drive member to slow down the rotational speed of the dehydration cylinder 510.

[0103] When the friction pad rises to the lower side of the dewatering cylinder 510 and rubs against the lower part of the dewatering cylinder 510, the rotation speed of the dewatering cylinder 510 can be slowed down.

[0104] Furthermore, the pad driving component is connected to the friction pad and configured to lift the friction pad; for example, an electromagnetic cylinder can be used.

[0105] Furthermore, in the present invention having the above-mentioned dehydration cylinder speed limiting part 520, the blade rotation shaft 131 is disposed in the hollow of the inner cylinder rotation shaft 221, and has a structure in which the blade rotation shaft 131 and the inner cylinder rotation shaft 221 rotate independently.

[0106] Specifically, a first bearing B1 can be installed between the blade rotation shaft 131 and the inner cylinder rotation shaft 221, and a second bearing B2 can be installed between the lower extension 113 extending from the lower part of the outer cylinder 110 to form on the outer periphery of the inner cylinder rotation shaft 221 and the inner cylinder rotation shaft 221.

[0107] At this time, the second bearing B2 can be a one-way bearing. When the object to be stirred rotates at high speed along with the high-speed rotation of the blade rotating shaft 131, this second bearing B2 can prevent the inner cylinder 210, which should rotate in the opposite direction to the blade rotating shaft 131, from rotating in the same direction as the blade rotating shaft 131 due to the high-speed rotation of the object to be stirred.

[0108] In addition, the open upper part of the outer cylinder 110 is opened and closed by the outer cylinder cover 110a, the open upper part of the dehydration cylinder 510 is opened and closed by the dehydration cylinder cover 511, and the open upper part of the inner cylinder 210 is opened and closed by the inner cylinder cover 230.

[0109] The outer cylinder cover 110a has an outer cylinder cover groove 110b on its bottom surface and a dehydration cylinder cover protrusion 511b on its upper surface, so that it can be inserted into the outer cylinder cover groove 110b and rotated.

[0110] At this time, a dehydration cylinder cover groove 511a can be formed on the bottom surface of the dehydration cylinder cover 511, and an inner cylinder cover protrusion 230a can be formed on the upper surface of the inner cylinder cover 230, so that it can be inserted into the dehydration cylinder cover groove 511a and rotated.

[0111] Based on the structure of the cover described above, the inner cylinder 210 and the dehydration cylinder 510 can rotate stably without shaking.

[0112] Figure 11 This is a schematic diagram showing a longitudinal section of a mixer according to another embodiment of the present invention. Figure 12 It is shown in Figure 11 A schematic diagram of another example of a shaft connection component configured based on a mixer.

[0113] In this invention, to create a speed difference between the inner cylinder 210 and the dehydration cylinder 510, as another embodiment, such as... Figure 11 and 12 As shown, the dehydration unit 500 can simultaneously include the dehydration cylinder 510 and the dehydration cylinder speed change device as described above.

[0114] At this time, the dewatering cylinder speed change device may include a dewatering cylinder drive unit 530 for driving the rotating dewatering cylinder 510.

[0115] The dehydration cylinder drive unit 530 may include a dehydration cylinder rotating shaft 531 and a dehydration cylinder drive motor M3.

[0116] The dehydration cylinder rotating shaft 531 is vertically connected to the lower part of the dehydration cylinder 510, and the dehydration cylinder drive motor M3 is connected to the dehydration cylinder rotating shaft 531.

[0117] That is, the dewatering cylinder rotating shaft 531 is connected to the lower part of the dewatering cylinder 510 and extends longitudinally. By connecting the dewatering cylinder 510 and the dewatering cylinder drive motor M3, the rotational driving force of the dewatering cylinder drive motor M3 is transmitted to the dewatering cylinder 510, so that the dewatering cylinder 510 is rotated when the dewatering cylinder drive motor M3 is running.

[0118] At this time, the dehydration cylinder rotating shaft 531 and the dehydration cylinder drive motor M3 can be connected by the third synchronous belt T3 as a medium.

[0119] Therefore, the inner cylinder 210 changes its rotation speed and direction of rotation by the inner cylinder drive unit 220, and the dehydration cylinder 510 changes its rotation speed and direction of rotation by the dehydration cylinder drive unit 530, thus a speed difference between the inner cylinder 210 and the dehydration cylinder 510 can occur.

[0120] For reference, the inner cylinder drive unit 220 and the dehydration cylinder drive unit 530 are naturally controlled by an electrically connected controller.

[0121] Furthermore, in the present invention having the above-mentioned dehydration cylinder drive unit 530, the blade rotation shaft 131 is disposed in the hollow of the inner cylinder rotation shaft 221, the inner cylinder rotation shaft 221 is disposed in the hollow of the dehydration cylinder rotation shaft 531, and the blade rotation shaft 131, the inner cylinder rotation shaft 221 and the dehydration cylinder rotation shaft 531 are arranged to rotate independently.

[0122] Specifically, a first bearing B1 is installed between the blade rotating shaft 131 and the inner cylinder rotating shaft 221, and a second bearing B2 is installed between the inner cylinder rotating shaft 221 and the dewatering cylinder rotating shaft 531.

[0123] Furthermore, a third bearing B3 may be installed between the lower extension 113 extending from the lower part of the outer cylinder 110 and forming on the outer periphery of the inner cylinder rotation shaft 221 and the dewatering cylinder rotation shaft 531.

[0124] At this time, the second bearing B2 can be a one-way bearing. When the object to be stirred rotates at high speed along with the high-speed rotation of the blade rotating shaft 131, this second bearing B2 can prevent the inner cylinder 210, which should rotate in the opposite direction to the blade rotating shaft 131, from rotating in the same direction as the blade rotating shaft 131 due to the high-speed rotation of the object to be stirred.

[0125] In addition, the open upper part of the outer cylinder 110 is opened and closed by the outer cylinder cover 110a, the open upper part of the dehydration cylinder 510 is opened and closed by the dehydration cylinder cover 511, and the open upper part of the inner cylinder 210 is opened and closed by the inner cylinder cover 230.

[0126] In this design, an outer cylinder cover groove 110b can be formed at the lower part of the outer cylinder cover 110a, and a dehydration cylinder cover protrusion 511b can be formed on the upper surface of the dehydration cylinder cover 511 so that it can be inserted into the outer cylinder cover groove 110b and rotated.

[0127] At this time, a dehydration cylinder cover groove 511a can be formed at the lower part of the dehydration cylinder cover 511, and an inner cylinder cover protrusion 230a can be formed on the upper surface of the inner cylinder cover 230 so as to be inserted into the dehydration cylinder cover groove 511a and rotated.

[0128] Based on the structure of the cover described above, the inner cylinder 210 and the dehydration cylinder 510 can rotate stably without shaking.

[0129] On the other hand, in this invention, in order to create a speed difference between the inner cylinder 210 and the dehydration cylinder 510, such as... Figure 6 As shown, in one embodiment, the dehydration unit 500 may simultaneously include the dehydration cylinder 510 and the dehydration cylinder drive unit 530 as described above.

[0130] The lower part of the dehydration cylinder 510 is rotatably mounted on the outer cylinder 110, and the upper part is connected to the dehydration cylinder drive unit 530, thereby providing the rotational driving force of the dehydration cylinder drive unit 530 to the upper part of the dehydration cylinder 510.

[0131] That is, the dehydration cylinder 510 provides rotational driving force from the dehydration cylinder drive unit 530 through the upper part, causing the dehydration cylinder drive unit 530 to rotate the upper part. At this time, the lower part of the dehydration cylinder 510 is configured to be rotatably mounted to the outer cylinder 110 through a bearing structure, so that it can rotate synchronously when the upper part rotates.

[0132] As described above, the structure that provides rotational driving force from the dewatering cylinder drive unit 530 through the upper part of the dewatering cylinder 510 is as follows.

[0133] The dehydration unit 500 has a dehydration cylinder cover 511 that covers the dehydration cylinder 510 and has a structure that is keyed to lock with the dehydration cylinder 510.

[0134] The dehydration cylinder drive unit 530 is connected to the dehydration cylinder cover 511, so that the dehydration cylinder cover 511 rotates and the dehydration cylinder 510 rotates in conjunction.

[0135] In addition, the dehydration cylinder drive unit 530 may include a dehydration cylinder drive motor M3 and a dehydration cylinder rotation shaft 531.

[0136] The dehydration cylinder drive motor M3 is mounted on the mixer body 100. The dehydration cylinder rotating shaft 531 is key-locked with the dehydration cylinder cover 511 so that the dehydration cylinder cover 511 is also rotated in conjunction with the rotation.

[0137] In addition, the dehydration cylinder drive unit 530 may also include a shaft connecting member 532, which connects the motor shaft of the dehydration cylinder drive motor M3 to the dehydration cylinder rotation shaft 531, thereby performing the function of transmitting rotational driving force from the motor shaft to the dehydration cylinder rotation shaft 531.

[0138] This shaft connection member 532 can be composed of at least one of a gear connecting shaft and a connecting belt. In this case, at least one of the gear connecting shaft and the connecting belt can be arranged.

[0139] As an example, such as Figure 11 As shown, the shaft connecting member 532 may include a first gear connecting shaft 532a and a second gear connecting shaft 532b. The left end of the first gear connecting shaft 532a is connected to the top gear of the dehydration cylinder rotating shaft 531, the upper end of the second gear connecting shaft 532b is connected to the right gear of the first gear connecting shaft 532a, and the lower end is connected to the motor shaft gear of the dehydration cylinder drive motor M3.

[0140] At this time, the upper end of the dehydration cylinder rotating shaft 531, the left and right ends of the first gear connecting shaft 532a, and the upper and lower ends of the second gear connecting shaft 532b can respectively form bevel gears for gear connection structures.

[0141] In another embodiment, the shaft connection member 532 may include Figure 12 The first connecting strip 532a', intermediate connecting shaft 532b', and second connecting strip 532c' shown are used to replace Figure 11 The first gear connecting shaft 532a and the second gear connecting shaft 532b are shown. Naturally, the upper ends of the dehydration drum rotating shaft 531 and the dehydration drum drive motor M3, as well as the upper and lower ends of the intermediate connecting shaft 532b', can form synchronous gears, allowing the first connecting belt 532a' and the second connecting belt 532c' to rotate in a wound state to transmit driving force. At this time, the first connecting belt 532a' and the second connecting belt 532c' can utilize a synchronous belt. For reference, because... Figure 7 and Figure 6 Elements with the same reference numerals in the accompanying drawings have the same function and structure, so their descriptions will be omitted.

[0142] On the other hand, the outer cylinder 110 of the mixer body 100 is opened and closed by the outer cylinder cover 110a, and the dewatering cylinder rotating shaft 531 passes through the outer cylinder cover 110a, so it rotates independently of the outer cylinder cover 110a.

[0143] At this time, the bottom center portions of the inner cylinder 210, the dehydration cylinder 510 and the outer cylinder 110 are penetrated by the blade rotation shaft 131 of the blade drive unit 130, and can be connected to the blade rotation shaft 131 as a bearing.

[0144] Furthermore, the dehydration cylinder drive motor M3 can be arranged on the upper side, lower side, or side of the dehydration cylinder 510.

[0145] Specifically, the dehydration drum drive motor M3 has a structure connected to the dehydration drum rotation shaft 531 or shaft connecting member 532. Although not shown in the figure, as an example, it can be built into the mixer cover 140 installed on the upper side of the dehydration drum 510. As another example, it can be built into the side shell portion 320 of the drum support shell 300 provided on the side of the dehydration drum 510. Further, as yet another example, as shown in the figure, it can be built into the lower shell portion 310 of the drum support shell 300 provided on the lower side of the dehydration drum 510.

[0146] In summary, the mixer according to the invention is configured such that a rotational driving force is provided from the top to each of the inner cylinder 210 and the dewatering cylinder 510, thereby allowing the inner cylinder 210 and the dewatering cylinder 510 to rotate safely and smoothly independently of the crushing blade 120, thereby improving the crushing performance of the object to be mixed.

[0147] Figure 13 This is a flowchart illustrating a dehydration method using a mixer according to the present invention.

[0148] Reference Figure 13 A dehydration method using a mixer according to the present invention is described.

[0149] The dehydration method of the mixer according to the present invention includes a dehydration step S100 and a speed difference generation step S200, wherein the dehydration step S100 is performed before and after the speed difference generation step S200.

[0150] That is, a pattern is formed in which the dehydration step S100, the speed difference generation step S200, and the dehydration step S100 are executed in sequence, and the pattern can be executed at least once.

[0151] In other words, the dehydration step S100 can be performed before the speed difference generation step S200, and can be performed again after the speed difference generation step S200. Furthermore, this pattern can be repeated at least once.

[0152] The dehydration step S100 is the inner cylinder ( Figure 5 210) and dehydration cylinder ( Figure 5 The step of rotating in the same direction (510) in the middle.

[0153] That is, the dehydration step S100 is a step in which an inner cylinder 210 containing the object to be stirred and having a side opening and a dehydration cylinder 510 surrounding the side of the inner cylinder 210 rotate in the same direction so as to dehydrate the object to be stirred.

[0154] Specifically, in Figure 6 In the mixer shown according to an embodiment of the present invention, when the inner cylinder drive unit 220 rotates the inner cylinder 210, the object to be stirred is rotated accordingly, and the rotating object to be stirred rubs against the dehydration cylinder 510 passing through the side opening 210a of the inner cylinder 210, thereby the dehydration cylinder 510 also rotates simultaneously with the inner cylinder 210.

[0155] In addition, Figure 7 , 11 In the mixer shown in Figure 12 according to another embodiment of the present invention, the inner cylinder drive unit 220 rotates the inner cylinder 210, and the dehydration cylinder drive unit 530 rotates the dehydration cylinder 510 in the same direction as the inner cylinder 210, thereby the inner cylinder 210 and the dehydration cylinder 510 can rotate in the same direction.

[0156] As described above, in the dehydration step S100, the inner cylinder 210 and the dehydration cylinder 510 rotate in the same direction, so that the object to be stirred is squeezed by the dehydration cylinder 510 through the side opening 210a of the inner cylinder 210 by centrifugal force to produce juice, and the juice produced flows out through the dehydration hole 510a to achieve the dehydration of the object to be stirred.

[0157] Furthermore, this dehydration step S100 is performed only when the discharge pipe 112 of the outer cylinder 110 containing the dehydration cylinder 510 is opened, that is, when the juice flowing through the dehydration hole 510a of the dehydration cylinder 510 is discharged to the outside through the discharge pipe 112 of the outer cylinder 110, the dehydration step S100 is performed.

[0158] Next, the speed difference generation step S200 is the step of generating a speed difference between the inner cylinder 210 and the dehydration cylinder 510.

[0159] Specifically, the speed difference generation step S200 is a step of generating a speed difference between the inner cylinder 210, which forms a scraper 214 on the outer side, and the dehydration cylinder 510, so as to scrape off the blocking components of the stirred object that are blocking the dehydration hole 510a of the dehydration cylinder 510.

[0160] This speed difference generation step S200 can be achieved through a variety of methods.

[0161] As an example method, the speed difference generation step S200 can be achieved by stopping the rotation of the dewatering cylinder 510 during the rotation of the inner cylinder 210.

[0162] Specifically, in Figure 6 In the mixer shown according to an embodiment of the present invention, the inner cylinder 210 is driven to rotate by the inner cylinder drive unit 220. During the rotation of the inner cylinder 210, the dehydration cylinder speed limiting unit 520 stops the synchronously rotating dehydration cylinder 510, thereby creating a speed difference between the inner cylinder 210 and the dehydration cylinder 510. Specifically, the stop pin 521 of the dehydration cylinder speed limiting unit 520 is inserted into the stop groove 510b of the dehydration cylinder 510, causing the dehydration cylinder 510 to stop rotating.

[0163] In addition, Figure 7 , 11 In the mixer according to an embodiment of the present invention shown in Figure 12, during the period when the inner cylinder 210 is driven to rotate by the inner cylinder drive unit 220, the dehydration cylinder drive unit 530 stops the rotating dehydration cylinder 510, thereby creating a speed difference between the inner cylinder 210 and the dehydration cylinder 510. That is, the dehydration cylinder drive unit 530 controls the stopping of the dehydration cylinder 510 by a controller.

[0164] As another example method, the speed difference generation step S200 can be achieved by decelerating the dewatering cylinder 510 relative to the inner cylinder 210.

[0165] Specifically, in Figure 6 In the mixer shown according to another embodiment of the present invention, during the period when the inner cylinder 210 is driven to rotate by the inner cylinder drive unit 220, the dehydration cylinder speed limiting unit 520 decelerates the synchronously rotating dehydration cylinder 510, thereby creating a speed difference between the inner cylinder 210 and the dehydration cylinder 510. That is, although not shown in the drawings, the rotating dehydration cylinder 510 is decelerated when the friction block of the dehydration cylinder speed limiting unit 520 rubs against the lower part of the dehydration cylinder 510.

[0166] In addition, Figure 7 , 11 In the mixer according to another embodiment of the present invention shown in Figure 12, the inner cylinder 210 is driven to rotate by the inner cylinder drive unit 220. During the rotation of the inner cylinder 210, the dewatering cylinder drive unit 530 decelerates the dewatering cylinder 510, thereby creating a speed difference between the inner cylinder 210 and the dewatering cylinder 510. That is, the dewatering cylinder drive unit 530 controls the deceleration of the dewatering cylinder 510 by a controller.

[0167] As another example method, the speed difference generation step S200 can be achieved by stopping the inner cylinder 210 during the rotation of the dehydration cylinder 510.

[0168] Specifically, in Figure 7 , 11 In the mixer according to another embodiment of the present invention shown in Figure 12, the dehydration cylinder 510 is driven to rotate by the dehydration cylinder drive unit 530. During the rotation of the dehydration cylinder 510, the inner cylinder drive unit 220 stops the rotation of the inner cylinder 210, thereby creating a speed difference between the inner cylinder 210 and the dehydration cylinder 510. That is, the inner cylinder drive unit 220 controls the stopping of the inner cylinder 210 by a controller.

[0169] Furthermore, as another example method, the speed difference generation step S200 can be achieved by reducing the speed of the inner cylinder 210 relative to the dehydration cylinder 510.

[0170] Specifically, in Figure 7 , 11 In the mixer according to another embodiment of the present invention shown in Figure 12, the inner cylinder 210 is driven to rotate by the inner cylinder drive unit 220. During the rotation of the inner cylinder 210, the inner cylinder drive unit 220 drives the inner cylinder 210 to decelerate, thereby creating a speed difference between the inner cylinder 210 and the dewatering cylinder 510. That is, the inner cylinder drive unit 220 controls the deceleration of the inner cylinder 210 by a controller.

[0171] As another example method, the speed difference generation step S200 can be achieved by rotating the inner cylinder 210 and the dewatering cylinder 510 in opposite directions.

[0172] Specifically, in Figure 7 , 11In the mixer according to another embodiment of the present invention shown in Figure 12, a speed difference between the inner cylinder 210 and the dehydration cylinder 510 can be generated by driving the dehydration cylinder 510 to rotate in the opposite direction to the inner cylinder 210 by the dehydration cylinder drive unit 530, or by driving the inner cylinder 210 to rotate in the opposite direction to the dehydration cylinder 510 by the inner cylinder drive unit 220. That is, the inner cylinder drive unit 220 or the dehydration cylinder drive unit 530 is controlled by the controller to make the inner cylinder 210 rotate in the opposite direction to the dehydration cylinder 510.

[0173] In summary, by constructing a scraper 214 on the outer side of the inner cylinder 210 and generating a rotational speed difference between the inner cylinder 210 and the dehydration cylinder 510, the present invention can scrape off the clogging components of the stirred object that are blocking the dehydration holes 510a of the dehydration cylinder 510, thereby improving the dehydration effect of the stirred object.

[0174] As described above, although the present invention has been described with reference to limited embodiments and drawings, the present invention is not limited thereto. Various modifications and variations can be made by those skilled in the art without departing from the technical concept of the present invention as set forth in the claims.

Claims

1. A mixer, comprising: The mixer body includes an outer cylinder, crushing blades, and a blade drive unit, wherein the blade drive unit is used to rotate the crushing blades. The inner cylinder unit includes an inner cylinder and an inner cylinder drive unit. The inner cylinder is disposed inside the outer cylinder. The crushing blade is located inside the inner cylinder. A side opening is formed inside the inner cylinder. The inner cylinder drive unit is used to rotate the inner cylinder. as well as The dehydration unit includes a dehydration cylinder and a dehydration cylinder speed change device. The dehydration cylinder surrounds the inner cylinder and covers the side opening, allowing the object to be stirred to be contained within the inner cylinder. The dehydration cylinder has dehydration holes formed on it. The dehydration cylinder speed change device is used to change the rotational speed of the dehydration cylinder. The outer side of the inner cylinder has a protruding scraper for scraping off the clogging components of the stirred object that are blocking the dehydration holes of the dehydration cylinder. A protrusion is formed on the inner side of the inner cylinder to obstruct the agitated object that is being pulverized and rotating by the pulverizing blades. The protrusion has a spiral protrusion shape that guides the object being stirred to flow downwards in a spiral motion, so that when the pulverizing blades and the inner cylinder rotate in opposite directions, the object being stirred rotates in the opposite direction to the rotation of the pulverizing blades and flows downwards. Multiple side openings are formed laterally from the side of the inner cylinder, and protrusions are formed on the inner side surface of the inner cylinder between the multiple side openings. The scraper is formed laterally from the side of the inner cylinder in multiple ways, and is formed on the outer side of the inner cylinder between the multiple side openings in a manner corresponding to the position of the protrusion, and is formed in a spiral protrusion shape in a manner corresponding to the shape of the protrusion.

2. The mixer according to claim 1, wherein, The dehydration cylinder has multiple stop grooves formed along its lower edge. The dehydration drum speed change device includes a dehydration drum speed limiting part, used to limit the rotational speed of the dehydration drum. The dehydration cylinder speed limiting part includes: A stop pin, when it rises along the stop groove side of the dewatering cylinder and is inserted into the stop groove and locked, stops the rotation of the dewatering cylinder; and A pin-driven component is used to raise and lower the stop pin.

3. The mixer according to claim 2, wherein, The outer cylinder has a stop hole at its lower part for raising and lowering the stop pin, and also has a pin receiving bracket for receiving the stop pin below the stop hole at the lower part. The dehydration cylinder speed limiting part also includes: An elastic member is disposed between the head of the stop pin and the bottom surface of the outer cylinder. When the upward pressure of the pin drive member on the stop pin is released, it provides an elastic force to lower the stop pin while maintaining the stop pin blocking the stop hole.

4. The mixer according to claim 2, wherein, The dehydration unit also includes: A dehydration cylinder support rail is disposed inside the outer cylinder and supports the sliding rotation of the lower edge of the dehydration cylinder placed on the dehydration cylinder support rail.

5. The mixer according to claim 1, wherein, The dehydration cylinder speed limiting part includes: The friction pad, as it rises along the lower side of the dewatering cylinder and rubs against the lower part of the cylinder, reduces the rotational speed of the dewatering cylinder; and A pad drive component, connected to the friction pad, is used to raise and lower the friction pad.

6. The mixer according to claim 1, wherein, The scraper protrudes into the inner side of the dewatering cylinder.

7. The mixer according to claim 1, wherein, The inner cylinder forms a liquid-containing wall on the lower side of its side portion.

8. The mixer according to claim 1, wherein, The blade drive unit includes a blade rotation shaft and a blade drive motor. The blade rotation shaft is connected to the lower part of the shredding blade, and the blade drive motor is connected to the blade rotation shaft to rotate the blade rotation shaft. The inner cylinder drive unit includes an inner cylinder rotating shaft and an inner cylinder drive motor. The inner cylinder rotating shaft is connected to the lower part of the inner cylinder, and the inner cylinder drive motor is connected to the inner cylinder rotating shaft to rotate the inner cylinder rotating shaft. The blade rotation shaft is disposed within the hollow of the inner cylinder rotation shaft, and the blade rotation shaft and the inner cylinder rotation shaft rotate independently of each other.

9. The mixer according to claim 8, wherein, A first bearing is installed between the blade rotation axis and the inner cylinder rotation axis, and a second bearing is installed between the lower extension portion extending from the lower part of the outer cylinder to form on the outer periphery of the inner cylinder rotation axis and the inner cylinder rotation axis. The second bearing is a one-way bearing.

10. The mixer according to claim 1, wherein, The open upper part of the outer cylinder is opened and closed by an outer cylinder cover, the open upper part of the dehydration cylinder is opened and closed by a dehydration cylinder cover, and the open upper part of the inner cylinder is opened and closed by an inner cylinder cover. An outer cylinder cover groove is formed at the lower part of the outer cylinder cover, and a dewatering cylinder cover protrusion is formed on the upper surface of the dewatering cylinder cover, which is inserted into the outer cylinder cover groove and can rotate. A dehydration cylinder cover groove is formed at the lower part of the dehydration cylinder cover, and an inner cylinder cover protrusion that is inserted into the dehydration cylinder cover groove and can be rotated is formed on the upper surface of the inner cylinder cover.

11. The mixer according to claim 1, wherein, The blade drive unit includes a blade rotation shaft and a blade drive component. The blade rotation shaft is connected to the lower part of the shredding blade, and the blade drive component is connected to the blade rotation shaft to rotate the blade rotation shaft. The inner cylinder drive unit includes an inner cylinder rotating shaft and an inner cylinder drive component. The inner cylinder rotating shaft is connected to the lower part of the inner cylinder, and the inner cylinder drive component is connected to the inner cylinder rotating shaft to rotate the inner cylinder rotating shaft. The dewatering drum speed change device includes a dewatering drum drive unit for driving the dewatering drum to rotate. The dewatering cylinder drive unit includes a dewatering cylinder rotating shaft and a dewatering cylinder drive component. The dewatering cylinder rotating shaft is connected to the lower part of the dewatering cylinder, and the dewatering cylinder drive component is connected to the dewatering cylinder rotating shaft to rotate the dewatering cylinder rotating shaft.

12. The mixer according to claim 11, wherein, The blade rotating shaft is disposed within the hollow of the inner cylinder rotating shaft, and the inner cylinder rotating shaft is disposed within the hollow of the dewatering cylinder rotating shaft. The blade rotating shaft, the inner cylinder rotating shaft, and the dewatering cylinder rotating shaft rotate independently of each other.

13. The mixer according to claim 12, wherein, A first bearing is installed between the blade rotation shaft and the inner cylinder rotation shaft, and a second bearing is installed between the inner cylinder rotation shaft and the dewatering cylinder rotation shaft. A third bearing is installed between the lower extension of the outer cylinder, which extends from the lower part to form the outer periphery of the dewatering cylinder rotating shaft, and the dewatering cylinder rotating shaft. The second bearing is a one-way bearing.

14. A dehydration method using the mixer of claim 1, comprising: In the dehydration step, an inner cylinder containing the object to be stirred and having a side opening, and a dehydration cylinder surrounding the side of the inner cylinder and having dehydration holes, rotate in the same direction to dehydrate the object to be stirred. as well as The speed difference generation step generates a speed difference between the inner cylinder, on which scrapers are formed on the outer side, and the dehydration cylinder, so as to scrape off the clogging components of the stirred object that are blocking the dehydration holes of the dehydration cylinder.

15. The dehydration method of the mixer according to claim 14, wherein, During the speed difference generation step, the dehydration cylinder is stopped while the inner cylinder is rotating.

16. The dehydration method of the mixer according to claim 14, wherein, In the speed difference generation step, the rotational speed of the dehydration cylinder is reduced to below that of the inner cylinder.

17. The dehydration method of the mixer according to claim 14, wherein, During the speed difference generation step, the inner cylinder is stopped while the dehydration cylinder is rotating.

18. The dehydration method of the mixer according to claim 14, wherein, In the speed difference generation step, the inner cylinder is decelerated and its rotational speed is reduced to below that of the dewatering cylinder.

19. The dehydration method of the mixer according to claim 14, wherein, In the speed difference generation step, the inner cylinder and the dehydration cylinder are rotated in opposite directions.

20. The dehydration method of the mixer according to claim 14, wherein, A pattern is formed in which the dehydration step, the speed difference generation step, and the dehydration step are executed sequentially, and the pattern is executed at least once.

21. The dehydration method of the mixer according to claim 14, wherein, The dehydration step is performed only when the discharge pipe of the outer cylinder containing the dehydration cylinder is open.

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