CN116474898A - a food grinder - Google Patents

Abstract

The invention relates to the technical field of food processing, and discloses a food grinder, which comprises: a cylinder body, the cylinder body is hollow inside and has an open top side structure; an upper cover, the upper cover is detachably mounted on the cylinder body, and is used to cover the open end of the cylinder body; a crushing mechanism, the crushing mechanism is rotatably installed in the cylinder body, and is used for crushing food; a stirring mechanism, the stirring mechanism is rotatably installed in the cylinder body, and is used for stirring food; on, used to drive the crushing mechanism and the stirring mechanism to rotate. In the present application, by providing a cylinder body, an upper cover, a crushing mechanism, a stirring mechanism and a driving mechanism, when the grinder grinds food through the grinder mechanism, it can simultaneously play a stirring effect on all foods through the stirring mechanism, thereby improving the crushing effect of the grinder.

Description

a food grinder

technical field

The invention relates to the technical field of food processing, in particular to a food grinder.

Background technique

Crusher is one of the more commonly used food processing equipment in daily life and industrial production. Its main function is to crush the food put into the grinder, such as crushing coarse grains, meat, seasoning products, fruits, etc.

Chinese patent (Application No. 201110373687.X) discloses a food grinder, including a platter, a motive mechanism, a blade mechanism, a platter, and a fastening mechanism. The mechanism includes a seat, a lock bolt groove, a lock bolt, a pressure spring, a card groove, a card, and a spring. The card is provided with a perforation, and the lock bolt passes through the perforation.

Although the above-mentioned patent has the advantage of accurate positioning, when the above-mentioned patent is crushing the food with moisture, part of the food that has not been completely crushed tends to adhere to the inner wall of the container, or accumulates at a position close to the inner wall of the container.

Contents of the invention

In view of this, the purpose of the present invention is to provide a food grinder, which is used to solve the problem pointed out in the background technology that when the existing grinder grinds the food with moisture, some of the food that has not been completely grinded easily adheres to the inner wall of the container, or accumulates at a position close to the inner wall of the container, resulting in insufficient grinding of the food.

The present invention solves the above technical problems by the following technical means:

A food grinder comprising:

A cylinder body, the cylinder body is a hollow structure with an open top side;

an upper cover, the upper cover is detachably installed on the cylinder, and is used to cover the open end of the cylinder;

a crushing mechanism, the crushing mechanism is rotatably installed in the barrel, and is used for crushing food;

a stirring mechanism, the stirring mechanism is rotatably installed in the barrel, and is used to stir the food; and

A driving mechanism, the driving mechanism is installed on the barrel/the upper cover, and is used to drive the crushing mechanism and the stirring mechanism to rotate.

Further, the stirring mechanism includes a U-shaped stirring frame, two ends of the stirring frame are respectively fixed with rotating collars, the stirring frame rotates along the axis of the rotating collar, and the stirring frame can be in contact with the inner side wall of the cylinder and the bottom side wall of the upper cover.

Further, the stirring frame includes an upper horizontal bar, a vertical bar and a lower horizontal bar, one end of the upper horizontal bar is fixed to the upper side of the rotating collar, the other end of the upper horizontal bar is fixed to the upper end of the vertical bar, one end of the lower horizontal bar is fixed to the lower end of the vertical bar, the other end of the lower horizontal bar is fixed to the lower side of the rotating collar, the upper horizontal bar is in contact with the bottom side wall of the upper cover, the vertical bar is in contact with the circumferential side wall in the cylinder, and the lower horizontal bar is in contact with the inner side wall of the cylinder. The bottom and side walls are in contact.

Further, a number of first stirring rods are fixed on the side of the upper horizontal bar away from the bottom side wall of the upper cover, a number of second stirring rods are fixed on the side of the vertical bar away from the circumferential side wall of the cylinder, and a number of third stirring rods are fixed on the side of the lower horizontal bar away from the bottom side wall of the cylinder.

Further, a first slope is provided on the side of the upper horizontal bar facing the rotation direction of the stirring frame, a second slope is provided on the side of the vertical bar facing the rotation direction of the stirring frame, and a third slope is provided on the side of the lower horizontal bar facing the rotation direction of the stirring frame.

Further, the stirring mechanism includes a rotating rod and a blade assembly, the bottom side of the rotating rod is provided with a rotating hole, and the middle part of the bottom side of the cylinder is fixed with a fixed shaft adapted to the rotating hole, and the fixed shaft can be inserted into the rotating hole to make the rotating rod rotate around its own axis, and the blade assembly shell is disassembled and installed on the rotating rod.

Further, the blade assembly includes several coaxial installation collars, on which several blades are fixed, and several installation collars are jointly fixed with a connecting rod, and the two ends of the connecting rod are respectively fixed with abutment collars, and both the installation collar and the abutment collar can be set on the rotating rod, and the rotating rod is provided with a connection key, and the installation collar and the abutment ring are provided with a keyway adapted to the connection key.

Further, the stirring mechanism can be rotatably installed on the rotating rod along the axis of the rotating rod, the two rotating collars of the stirring mechanism can be sleeved on the upper and lower ends of the rotating rod respectively, and the two rotating collars can be in contact with the two abutting collars respectively.

Further, the inside of the upper cover is provided with an installation chamber for installing the driving mechanism, and the driving mechanism includes a driving motor and a planetary reduction mechanism; one end of the output shaft of the driving motor passes through the bottom side wall of the upper cover and is fixed with a spline connection, and the upper end of the rotating rod is provided with a connecting hole adapted to the spline connection; the planetary reduction mechanism includes a sun gear, an inner ring gear, and several planetary gears, the sun gear is fixed on the output shaft of the driving motor, and the inner ring gear and several planetary gears are rotatably installed in the installation chamber of the upper cover , the planetary gear is meshed between the ring gear and the sun gear, a connecting ring is fixed on the bottom side of the ring gear, the connecting ring runs through the bottom side of the upper cover, a push rod is fixed on the connecting ring, and the upper bar is located on the movement track of the push rod.

Further, the upper cover is fixed in the installation chamber with several connecting shafts adapted to the planetary gears, the planetary gears are rotatably mounted on the connection shafts, the upper cover is fixed in the installation chamber with a rotating installation ring adapted to the inner ring gear, and the outer ring of the inner ring gear is rotatably installed in the rotating installation ring.

Beneficial effects of the present invention:

1. In this application, by setting the cylinder body, the upper cover, the crushing mechanism, the stirring mechanism and the driving mechanism, when the grinder grinds food through the grinder mechanism, it can simultaneously play a stirring role on all foods through the stirring mechanism, and improve the grinder effect of the grinder.

2. During the rotation of the stirring mechanism in this application, the stirring frame can be in contact with the inner side wall of the cylinder body and the bottom side wall of the upper cover, thereby scraping off the food adhering to the inner side wall of the cylinder body and the bottom side wall of the upper cover, and can stir the food scraped from the inner wall and piled up near the inner wall of the container, so that these foods can be more fully crushed by the crushing mechanism. In addition, after the food is crushed and the food is transferred out of the barrel, the stirring mechanism can be rotated again, so that the stirring frame scrapes off the food attached to the inner side wall of the barrel and the bottom side wall of the upper cover, and then transfers this part of the food, which can also reduce food waste.

3. The rotating rod, the blade assembly and the mixing mechanism in the present application can be assembled and disassembled with each other, which is convenient for the cleaning of the grinder.

4. In this application, the driving motor directly drives the crushing mechanism to rotate at a high speed, and the planetary reduction mechanism drives the stirring mechanism to rotate at a low speed, which can not only ensure that the crushing mechanism and the stirring mechanism can work normally, but also protect the driving motor and the stirring frame of the stirring mechanism, and prolong the service life of the crushing machine.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the accompanying drawings that are required in the description of the embodiments or prior art. Obviously, the accompanying drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, other accompanying drawings can also be obtained based on these drawings without creative work.

Fig. 1 is the structural representation of pulverizer in the embodiment of the application;

Fig. 2 is the sectional view of pulverizer in the embodiment of the application;

Fig. 3 is the exploded view of crushing mechanism and stirring mechanism in the embodiment of the present application;

Fig. 4 is a cross-sectional view showing a planetary reduction mechanism in an embodiment of the present application;

Fig. 5 is a structural schematic diagram showing the cooperation between the planetary reduction mechanism and the stirring mechanism in the embodiment of the present application;

Among them, the main component symbols are explained as follows:

100, barrel; 110, handle; 120, fixed shaft; 200, upper cover; 210, handle; 220, connecting shaft; 230, rotating installation ring; 240, installation chamber; 300, crushing mechanism; 310, rotating rod; 311, rotating hole; 312, connecting key; 313, connecting hole; 324, abutting collar; 400, stirring mechanism; 410, stirring frame; 411, upper horizontal bar; 412, vertical bar; 413, lower horizontal bar; 414, first stirring rod; 415, second stirring rod; 416, third stirring rod; 417, first inclined plane; 418, second inclined plane; 419, third inclined plane; 520, planetary reduction mechanism; 521, sun gear; 522, ring gear; 523, planetary gear; 524, connecting ring; 525, push rod.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

As shown in FIGS. 1-5 , the embodiment of the present application provides a food grinder, including a cylinder body 100 , an upper cover 200 , a grinding mechanism 300 , a stirring mechanism 400 and a driving mechanism 500 . Wherein, the cylinder body 100 is mainly hollow inside and open on the top side, and can be used to accommodate food to be crushed. A handle 110 is fixed on the outer wall of the cylinder body 100 . The upper cover 200 is detachably mounted on the cylinder body 100 and is used to cover the open end of the cylinder body 100 . The top of the upper cover 200 has a handle 210 for easy access to the upper cover 200 . The crushing mechanism 300 is rotatably installed in the cylinder body 100 and is used for crushing food. The stirring mechanism 400 is rotatably installed in the barrel 100 and is used for stirring food. The driving mechanism 500 is installed on the barrel body 100/the upper cover 200, and is used to drive the crushing mechanism 300 and the stirring mechanism 400 to rotate. Through such setting, when the grinder grinds food through the grinder mechanism 300, it can simultaneously perform a stirring effect on all foods through the stirrer mechanism 400, thereby improving the grinder effect of the grinder.

In this embodiment, the stirring mechanism 400 includes a U-shaped stirring frame 410, the two ends of the stirring frame 410 are respectively fixed with rotating collars 420, when the stirring mechanism 400 rotates in the cylinder body 100, the stirring frame 410 can rotate along the axis of the rotating collar 420, and the stirring frame 410 can be in contact with the inner side wall of the cylinder body 100 and the bottom side wall of the upper cover 200. By setting in this way, during the rotation of the stirring mechanism 400, the stirring frame 410 can be in contact with the inner side wall of the cylinder body 100 and the bottom side wall of the upper cover 200, thereby scraping off the food adhering to the inner side wall of the cylinder body 100 and the bottom side wall of the upper cover 200, and stirring the food scraped from the inner wall and accumulated near the inner wall of the container, so that these foods can be more fully crushed by the crushing mechanism 300.

In addition, after the food is crushed and the food is transferred out of the barrel 100, the stirring mechanism 400 can be rotated again, so that the stirring frame 410 scrapes off the food attached to the inner side wall of the barrel 100 and the bottom side wall of the upper cover 200, and then transfers this part of the food, which can also reduce food waste.

In this embodiment, the stirring frame 410 includes an upper horizontal bar 411, a vertical bar 412 and a lower horizontal bar 413. One end of the upper horizontal bar 411 is fixed to the upper rotating collar 420, the other end of the upper horizontal bar 411 is fixed to the upper end of the vertical bar 412, one end of the lower horizontal bar 413 is fixed to the lower end of the vertical bar 412, the other end of the lower horizontal bar 413 is fixed to the lower rotating collar 420, and the upper horizontal bar 411 is fixed to the upper end of the vertical bar 412. The bottom side wall of the cover 200 is in contact, the vertical bar 412 is in contact with the circumferential side wall inside the barrel 100 , and the lower horizontal bar 413 is in contact with the bottom side wall inside the barrel 100 . The upper horizontal bar 411, the vertical bar 412 and the lower horizontal bar 413 cooperate with each other to form the stirring frame 410, so as to scrape the bottom side wall of the upper cover 200, the circumferential side wall of the cylinder body 100 and the bottom side wall of the cylinder body 100 respectively, and have a good stirring effect on the food.

In this embodiment, a plurality of first stirring rods 414 are fixed on the side of the upper horizontal bar 411 away from the bottom side wall of the upper cover 200, a plurality of second stirring rods 415 are fixed on a side of the vertical bar 412 away from the circumferential side wall of the cylinder 100, and a plurality of third stirring rods 416 are fixed on a side of the lower horizontal bar 413 away from the bottom side wall of the cylinder 100. By setting the first stirring rod 414 , the second stirring rod 415 and the third stirring rod 416 , the stirring mechanism 400 can stir the food more fully.

In this embodiment, a first slope 417 is provided on the upper bar 411 toward the rotation direction of the stirring frame 410, a second slope 418 is provided on the vertical bar 412 toward the rotation direction of the stirring frame 410, and a third slope 419 is provided on the lower horizontal bar 413 toward the rotation direction of the stirring frame 410. By setting the first slope 417, the second slope 418 and the third slope 419, the stirring frame 410 can push the food on the side of the cylinder 100 to the middle during the rotation process, so that the food is fully in contact with the crushing mechanism 300, so that the food is crushed more fully. In addition, an inclined surface is provided on the stirring frame 410, so that the stirring frame 410 can not only ensure the stirring effect during the rotation process, but also reduce the resistance of the food when the stirring frame 410 is rotating, so that the stirring mechanism 400 can rotate smoothly.

In this embodiment, the stirring mechanism 400 includes a rotating rod 310 and a blade assembly 320. The bottom side of the rotating rod 310 is provided with a rotating hole 311, and the middle part of the bottom side of the barrel 100 is fixed with a fixed shaft 120 adapted to the rotating hole 311. The fixed shaft 120 can be inserted into the rotating hole 311, and when the fixed shaft 120 can be inserted into the rotating hole 311, the rotating rod 310 can rotate around its own axis. And the blade assembly 320 shell is disassembled and installed on the rotating rod 310 . By setting in this way, when the rotating rod 310 rotates, it can drive the blade assembly 320 to rotate, so that the blade assembly 320 can crush the food;

In this embodiment, the blade assembly 320 includes three installation collars 321 arranged coaxially, and three blades 322 are fixed on each installation collar 321 . The three installation collars 321 are jointly fixed with two connecting rods 323 , and the three installation collars 321 are connected and fixed by these two connecting rods 323 . The upper and lower ends of the connecting rod 323 are respectively fixed with abutment collars 324 , where the abutment collars 324 are used to cooperate with the rotating collar 420 of the stirring mechanism 400 , see the following description for details. Both the installation collar 321 and the abutting collar 324 can be set on the rotating rod 310, and the rotating rod 310 is provided with a connecting key 312, the length direction of the connecting key 312 is parallel to the axis of the rotating rod 310, and the installing collar 321 and the abutting collar 324 are provided with a keyway for fitting the connecting key 312. By setting in this way, when the blade assembly 320 needs to be installed on the rotating rod 310, the installation collar 321 and the abutting collar 324 can be directly placed on the rotating rod 310, and the keyway of the connecting key 312 snaps into the connecting key 312 of the rotating rod 310;

In this embodiment, the stirring mechanism 400 is rotatably mounted on the rotating rod 310 along the axis of the rotating rod 310 . Specifically, the two rotating collars 420 of the stirring mechanism 400 can be sleeved on the upper and lower ends of the rotating rod 310 , so that the entire stirring mechanism 400 can rotate around the rotating rod 310 . When the stirring mechanism 400 is installed on the rotating rod 310, the two rotating collars 420 can respectively contact with the two abutting collars 324, so that the stirring mechanism 400 and the crushing mechanism 300 are closely combined to enhance the stability of the structure. With this arrangement, when the food grinder has been processed and needs to be cleaned, the stirring mechanism 400 can also be directly disassembled from the rotating rod 310 for separate cleaning, which is more convenient. In addition, when the stirring mechanism 400 needs to be installed, the two abutting collars 324 of the blade assembly 320 can be respectively pressed against the two rotating collars 420 of the stirring mechanism 400, and the abutting collars 324 and the rotating collars 420 are coaxially arranged, and then the blade assembly 320 and the stirring mechanism 400 can be set on the rotating rod 310 together.

In this embodiment, the inside of the upper cover 200 is provided with an installation chamber 240 for installing the driving mechanism 500 , and the driving mechanism 500 mainly includes a driving motor 510 and a planetary reduction mechanism 520 . Wherein, the driving motor 510 can be used to directly drive the rotating rod 310 of the crushing mechanism 300 to rotate, and to drive the planetary reduction mechanism 520 to move, and the planetary reduction mechanism 520 can be used to drive the stirring mechanism 400 to rotate. By setting in this way, the rotating speed of the stirring mechanism 400 can be much smaller than the rotating speed of the crushing mechanism 300. It should be noted that during the working process of the grinder, the crushing mechanism 300 needs to maintain a relatively high speed so that the blade 322 can crush the food; however, during the rotation of the stirring mechanism 400, the stirring frame 410 is subjected to a very large resistance from the food. If the stirring mechanism 400 and the crushing mechanism 300 maintain the same high-speed state, the resistance generated by the food may cause damage to the stirring frame 410 of the stirring mechanism 400, and may also have a certain impact on the driving motor. Therefore, in this embodiment, the planetary deceleration mechanism 520 alone drives the stirring mechanism 400 to rotate, which decelerates the stirring mechanism 400 to a certain extent, and can protect the driving motor 510 without causing major damage to the stirring frame 410 of the stirring mechanism 400 .

In this embodiment, one end of the output shaft of the driving motor 510 runs through the bottom side wall of the upper cover 200 and is fixed with a splined connection part 511. The upper end of the rotating rod 310 is provided with a connecting hole 313 adapted to the splined connecting part 511. When the splined connecting part 511 is inserted into the connecting hole 313 of the rotating rod 310, the driving motor 510 can directly drive the rotating rod 310 to rotate.

In this embodiment, the planetary reduction mechanism 520 includes a sun gear 521 , an inner ring gear 522 and four planetary gears 523 , and the sun gear 521 is fixed on the output shaft of the driving motor 510 through key connection. The upper cover 200 is fixed with four connecting shafts 220 adapted to the planetary gears 523 in the installation chamber 240 , and the planetary gears 523 are rotatably mounted on the connecting shafts 220 ; The four planetary gears 523 are all meshed between the ring gear 522 and the sun gear 521 . It can be understood that, in the planetary reduction mechanism 520, the rotation speed of the inner ring gear 522 is obviously much smaller than the rotation speed of the sun gear 521, thereby realizing the deceleration of the inner ring gear 522, and in this embodiment, the decelerated inner ring gear 522 is used to drive the stirring mechanism 400 to rotate, thereby realizing the deceleration of the stirring mechanism 400. Specifically, a connecting ring 524 is fixed on the bottom side of the ring gear 522, and the connecting ring 524 runs through the bottom side of the loam cake 200. The bottom side of the loam cake 200 is provided with an annular groove for the connecting ring 524 to pass through. When it meets the upper horizontal bar 411 , it can drive the whole stirring mechanism 400 to rotate around the rotating rod 310 .

In addition, it should be noted that since an annular groove is provided on the bottom side of the upper cover 200, and the annular groove communicates the installation chamber 240 with the outside of the upper cover 200, the plate on the bottom side of the upper cover 200 is separated from the upper cover 200, and the four connecting shafts 220 can just refix this plate on the upper cover 200, making the overall structure of the upper cover 200 more compact.

The food grinder provided by the present invention has been introduced in detail above. The description of specific embodiments is only used to help understand the method and core idea of the present invention. It should be pointed out that for those skilled in the art, without departing from the principle of the present invention, some improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

It should be noted that references in the specification to "one embodiment", "an embodiment", "exemplary embodiment", "some embodiments" and the like mean that the described embodiments may include specific features, structures or characteristics, but not necessarily every embodiment includes the specific features, structures or characteristics. Furthermore, such phrases are not necessarily referring to the same embodiment. Furthermore, where a particular feature, structure, or characteristic is described in conjunction with an embodiment, it is within the purview of those skilled in the art to implement such feature, structure, or characteristic in conjunction with other embodiments that are explicitly or not explicitly described.

It should be noted that in this document, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article or apparatus comprising a set of elements includes not only those elements but also other elements not expressly listed or which are inherent to such process, method, article or apparatus. Without further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article or apparatus comprising said element.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements to some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.

Claims (10)

1. A food crutcher, the crutcher comprising:

the cylinder body (100), the cylinder body (100) is hollow in the inside and has an open top structure;

the upper cover (200) is detachably arranged on the cylinder body (100) and is used for sealing the open end of the cylinder body (100);

a mashing mechanism (300), said mashing mechanism (300) rotatably mounted within said barrel (100) for mashing food;

a stirring mechanism (400), the stirring mechanism (400) being rotatably mounted within the barrel (100) for stirring food; and

and the driving mechanism (500) is arranged on the cylinder body (100)/the upper cover (200) and is used for driving the stirring mechanism (400) and the stirring mechanism (300) to rotate.

2. The shredder according to claim 1, wherein the stirring mechanism (400) comprises a stirring frame (410) having a U-shaped structure, rotating collars (420) are respectively fixed at two ends of the stirring frame (410), the stirring frame (410) rotates along an axis of the rotating collars (420), and the stirring frame (410) can be in contact with an inner side wall of the cylinder (100) and a bottom side wall of the upper cover (200).

3. The crutcher of claim 2, wherein the stirring frame (410) includes an upper cross bar (411), a vertical bar (412), and a lower cross bar (413), one end of the upper cross bar (411) is fixed to the rotating collar (420) at an upper side, the other end of the upper cross bar (411) is fixed to an upper end of the vertical bar (412), one end of the lower cross bar (413) is fixed to a lower end of the vertical bar (412), the other end of the lower cross bar (413) is fixed to the rotating collar (420) at a lower side, the upper cross bar (411) is in contact with a bottom side wall of the upper cover (200), the vertical bar (412) is in contact with a circumferential side wall in the barrel (100), and the lower cross bar (413) is in contact with a bottom side wall in the barrel (100).

4. A crutcher according to claim 3, wherein a plurality of first stirring rods (414) are fixed to a side of the upper cross bar (411) away from the bottom side wall of the upper cover (200), a plurality of second stirring rods (415) are fixed to a side of the vertical bar (412) away from the circumferential side wall of the barrel (100), and a plurality of third stirring rods (416) are fixed to a side of the lower cross bar (413) away from the bottom side wall of the barrel (100).

5. A pulper according to claim 3, characterized in that the side of the upper cross bar (411) facing the direction of rotation of the stirring frame (410) is provided with a first bevel (417), the side of the upright bar (412) facing the direction of rotation of the stirring frame (410) is provided with a second bevel (418), and the side of the lower cross bar (413) facing the direction of rotation of the stirring frame (410) is provided with a third bevel (419).

6. A crutcher according to claim 3, wherein the stirring mechanism (400) comprises a rotating lever (310) and a blade assembly (320), a rotating hole (311) is provided on the bottom side of the rotating lever (310), a fixed shaft (120) adapted to the rotating hole (311) is fixed in the middle of the bottom side in the barrel (100), the fixed shaft (120) can be inserted into the rotating hole (311) to rotate the rotating lever (310) around its own axis, and the blade assembly (320) is detachably mounted on the rotating lever (310).

7. The pulper of claim 6, characterized in that the blade assembly (320) comprises a plurality of coaxially arranged mounting collars (321), a plurality of blades (322) are fixed on the mounting collars (321), a plurality of connecting rods (323) are jointly fixed on the mounting collars (321), abutting collars (324) are respectively fixed at two ends of the connecting rods (323), the mounting collars (321) and the abutting collars (324) can be sleeved on the rotating rod (310), connecting keys (312) are arranged on the rotating rod (310), and key grooves for adapting to the connecting keys (312) are arranged on the mounting collars (321) and the abutting collars (324).

8. The shredder according to claim 7, wherein the stirring mechanism (400) is rotatably mounted on the rotating rod (310) along the axis of the rotating rod (310), two rotating collars (420) of the stirring mechanism (400) are respectively sleeved at the upper end and the lower end of the rotating rod (310), and the two rotating collars (420) are respectively contacted with the two abutting collars (324).

9. The pulper of claim 6, characterized in that the inside of the upper cover (200) is provided with a mounting chamber (240) for mounting the driving mechanism (500), the driving mechanism (500) comprising a driving motor (510) and a planetary reduction mechanism (520); one end of an output shaft of the driving motor (510) penetrates through the bottom side wall of the upper cover (200) and is fixedly provided with a spline connection part (511), and the upper end of the rotating rod (310) is provided with a connection hole (313) which is matched with the spline connection part (511); the planetary reduction mechanism (520) comprises a sun gear (521), an annular gear (522) and a plurality of planetary gears (523), wherein the sun gear (521) is fixed on an output shaft of the driving motor (510), the annular gear (522) and the planetary gears (523) are rotatably installed in an installation cavity (240) of the upper cover (200), the planetary gears (523) are meshed between the annular gear (522) and the sun gear (521), a connecting ring (524) is fixed on the bottom side of the annular gear (522), the connecting ring (524) penetrates through the bottom side of the upper cover (200), a push rod (525) is fixed on the connecting ring (524), and the upper cross bar (411) is located on a movement track of the push rod (525).

10. The pulper of claim 9, characterized in that the upper cover (200) is fixed with a plurality of connecting shafts (220) which are matched with the planetary gears (523) in the mounting chamber (240), the planetary gears (523) are rotatably mounted on the connecting shafts (220), the upper cover (200) is fixed with a rotating mounting ring (230) which is matched with the annular gear (522) in the mounting chamber (240), and the outer ring of the annular gear (522) is rotatably mounted in the rotating mounting ring (230).