CN104083065B - Screw extrusion-type juice extractor - Google Patents

Abstract

The invention provides a screw squeeze juice extractor, comprising: a juice collection cup, a screw and a filter frame, a slag collection groove is arranged on the bottom surface of the juice collection cup, and the cross-sectional area of the slag collection groove is smaller than that of the juice collection cup The bottom area of the slag collection tank is provided with a slag discharge port on the side wall of the slag collection tank. The screw is arranged in the juice collection cup along the axial direction of the juice collection cup. The lower end of the screw is provided with a slag scraper, which is located in the slag collection tank The screw has multiple working sections, and the outer surface of each working section is provided with a plurality of spiral ribs, and the filter screen frame is in the shape of a conical tube, and a plurality of Convex ribs, and there is a gap between each convex rib and multiple spiral ribs in the corresponding working section, the gaps are all greater than or equal to 0.1mm and less than or equal to 1mm, and the convex ribs are divided into two-segment convex ribs or multi-segment convex ribs . The screw extruding juice extractor provided by the invention has the advantages of smooth slag extraction, easy cleaning, high juice output rate, and the like.

Description

Screw Squeeze Juicer

technical field

The invention relates to the field of household electrical appliances, and more specifically, relates to a screw extruding juice extractor.

Background technique

With the improvement of people's living standards and the gradual deepening of health concepts, more and more consumers give up various "additive" beverages, and pay attention to fruit and vegetable juices with pure natural color, fragrance and rich in essential vitamins and trace elements. stand up. But if you want to drink a good cup of freshly squeezed fruit and vegetable juice every morning, a suitable home juicer is essential. At the same time, with the improvement of the quality of life, the mentality of consumers has begun to transition from the most basic living needs to a nutritious and healthy taste of life, which provides more possibilities for the popularization and upgrading of juicers.

The difference between the original juicer currently on the market and the previous juicer is that it uses the principle of stone mill to extract juice, absolutely low speed, 70-80 transfers per minute, you can rest assured that it will never destroy nutrients, 100% retained Activity, because the nutrients of fruit and vegetable juice are particularly weak to temperature tolerance, it is said that it will not be fresh if it exceeds 40 degrees, not to mention thousands of revolutions per minute, the destruction of instantaneous high-speed high temperature, secondly, the biggest difference between the original juice machine and other juicers is , it satisfactorily solves the separation of pesticides and heavy metals from the active juice. According to the research of Dr. Fiber will not mix in the juice. If the fiber is first crushed into minced powder in one step, the juice and the powder must be mixed together, and then the juice is actually mixed with the medicine and the heavy metal powder without reservation and drunk by people. The raw juice machine tightly squeezes heavy metals, pesticides and fibers together to discharge the slag. In fact, pesticides and heavy metals have a good affinity with fibers. They stick to the fruit and vegetable fibers as the fruits and vegetables grow. Coupled with the extrusion of the gears, it is even more integrated. You don't have to worry about it being mixed into the juice. What you drink is completely non-toxic active juice.

Currently used slow juicer or original juicer, the surface of the screw rod has several spiral ribs with continuous transition, and the inner surface of the filter frame is provided with several convex ribs with continuous transition on the surface. The effect has a great influence. If the ribs on the inner surface of the filter frame protrude too much from the filter frame, after squeezing the fruits and vegetables, the pomace will stay between the ribs and the wall of the filter screen, while the lower end of the inner surface of the filter frame will The protruding ribs of the filter frame are too few, resulting in insufficient space for the pomace to push down, making it difficult to press down the pomace, resulting in more pomace remaining in the filter frame, making it difficult to clean the juicer After continuous juicing for a long time, the effect of juicing will be affected.

Contents of the invention

The present invention aims to solve at least one of the technical problems existing in the prior art.

For this reason, the object of the present invention is to provide a screw extrusion type juice extractor which can extract slag smoothly and effectively improve the juice yield.

In order to achieve the above object, the present invention provides a screw extrusion juice extractor, comprising: a juice collection cup, a slag collection groove is arranged on the bottom surface of the juice collection cup, and a slag discharge port is arranged on the slag collection groove ; screw, the screw is arranged in the juice collection cup along the axial direction of the juice collection cup, the lower end of the screw is provided with a slag scraping part, the slag scraping part is located in the slag collection groove, along the The axial direction of the screw rod, the screw rod has a plurality of working sections, and the outer surface of each working section is provided with a plurality of spiral ribs; and a filter frame, the filter frame is clamped on the juice collection In the cup, the screw rod is located in the filter frame, and a filter screen is installed on the filter frame, and a juice collection chamber is formed between the filter screen and the wall of the juice collection cup; along the filter screen In the circumferential direction of the frame, a plurality of ribs are provided on the inner surface of the screen frame corresponding to each of the working sections.

The screw extrusion juice extractor provided by the present invention has the advantages of smooth slag extraction, easy cleaning, and high juice output rate. Specifically, the juice extractor used in the prior art is limited by the draft angle when the parts are injected, so that the juice extractor located in the The protruding ribs at the bottom of the filter frame protrude from the inner surface of the filter frame too low, resulting in insufficient space for the pomace to push down, making it difficult to press down the pomace. The axial direction of the screw rod divides the screw rod into multiple working sections, and a plurality of spiral ribs are arranged on the outer surface of each working section, along the circumferential direction of the filter screen frame, corresponding to each working section on the inner surface of the filter screen frame A plurality of convex ribs are arranged at each place. This structure makes there always be a reasonable distance between the outer surface of the spiral rib and the inner wall of the filter frame, which effectively avoids the protruding of the filter frame due to the convex ribs located on the upper part of the filter frame. Too much inner surface, after the fruit and vegetables are squeezed, the pomace is trapped between the ribs and the screen wall, and/or, because the ribs at the lower The space for pushing down is not enough, which makes it difficult to press down the pomace, so that the screw extrusion juicer can discharge the residue smoothly, and then the cleaning of the screw extrusion juicer is simple and convenient, and at the same time, the screw extrusion juicer is effectively improved. Juicing rate of squeeze juicer.

In addition, the screw extrusion juice extractor provided according to the above-mentioned embodiments of the present invention also has the following additional technical features:

According to an embodiment of the present invention, the slag outlet is arranged on the side wall of the slag collecting tank.

According to an embodiment of the present invention, there is a gap between each of the convex ribs and the multiple spiral ribs of the corresponding working section, and the gaps are all greater than or equal to 0.1 mm and less than or equal to 1 mm.

According to an embodiment of the present invention, the filter screen holder is in the shape of a tapered tube.

According to an embodiment of the present invention, the taper of the side wall surface of the screen holder is greater than or equal to 12 degrees and less than or equal to 30 degrees.

According to an embodiment of the present invention, along the radial direction of the filter frame, the height of each rib is greater than or equal to 2mm.

According to an embodiment of the present invention, along the radial direction of the filter frame, a plurality of ribs are uniformly arranged on the inner surface of the filter frame.

According to an embodiment of the present invention, along the axial direction of the filter frame, a plurality of the raised ribs are connected to form a stepped shape.

According to an embodiment of the present invention, the screw rod has a first working section and a second working section, and a first rib is provided on the filter frame corresponding to the first working section, and a first rib is provided corresponding to the second working section. A second convex rib is provided at the working section, and the lower end surface of the spiral rib arranged on the first working section is located above the upper end surface of the second convex rib, and is arranged on the first working section There is a gap greater than or equal to 0.1mm and less than or equal to 1mm between the lower end surface of the spiral rib and the upper end surface of the second convex rib.

According to an embodiment of the present invention, an adjusting device for adjusting the area of the slag discharge port is installed on one side of the slag discharge port.

According to an embodiment of the present invention, the slag scraping part is a spiral scraping rib provided at the lower end of the screw.

According to an embodiment of the present invention, the slag scraping part is a plurality of scraping ribs arranged at the lower end of the screw rod along the axial direction of the juice collection cup, and a plurality of anti-skid ribs are arranged in the slag collection groove, so There is a gap between the anti-slip retaining rib and the scraping rib.

According to an embodiment of the present invention, the scraping rib is a stainless steel scraping rib or a polyetherimide scraping rib, and the bottom surface of the juice collection cup is a stainless steel plate or a polyetherimide plate.

According to an embodiment of the present invention, the plurality of ribs are integrated with the filter frame.

According to an embodiment of the present invention, the plurality of spiral ribs and the screw rod are integrally structured.

Additional aspects and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Description of drawings

The above and/or additional aspects and advantages of the present invention will become apparent and comprehensible from the description of the embodiments in conjunction with the following drawings, wherein:

Fig. 1 is a schematic cross-sectional structure diagram of a screw extrusion juice extractor according to an embodiment of the present invention;

Fig. 2 is a schematic cross-sectional structure schematic diagram of the assembly of the filter frame and the screw in the screw squeeze juice extractor shown in Fig. 1;

Fig. 3 is a schematic diagram of the enlarged structure of part A in Fig. 1;

Fig. 4 is a schematic diagram of the three-dimensional structure of the screw in the screw squeeze juice extractor shown in Fig. 1;

Fig. 5 is a schematic diagram of the first three-dimensional structure of the connection between the filter frame and the slag collection tank in the screw extrusion juice extractor shown in Fig. 1;

Fig. 6 is a schematic diagram of the cross-sectional structure along B-B in Fig. 5 .

Fig. 7 is a schematic diagram of the second three-dimensional structure of the connection between the filter frame and the slag collection tank in the screw extrusion juice extractor shown in Fig. 1 .

Among them, the corresponding relationship between the reference signs and the names of the departments in Figures 1 to 7 is:

100 screw extrusion juicer, 10 juice collection cup, 11 slag collection tank, 111 slag discharge port, 112 anti-slip rib, 20 screw, 21 working section, 211 spiral rib, 22 slag scraping part, 30 filter frame, 31 ribs, 311 first ribs, 312 second ribs.

detailed description

In order to understand the above-mentioned purpose, features and advantages of the present invention more clearly, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways than described here. Therefore, the protection scope of the present invention is not limited by the specific implementation disclosed below. Example limitations.

The screw extrusion juice extractor provided according to some embodiments of the present invention will be described below with reference to accompanying drawings 1 to 7 .

As shown in FIG. 1 , a screw squeeze juice extractor 100 provided by an embodiment of the present invention includes: a juice collecting cup 10 , a screw 20 and a filter frame 30 ;

Specifically, as shown in FIG. 1 , a slag collection tank 11 is provided on the bottom surface of the juice collection cup 10 , and a slag discharge port 111 is provided on the slag collection tank 11 . 10, as shown in Figures 1 and 4, the lower end of the screw 20 is provided with a slag scraper 22, the slag scraper 22 is located in the slag collection tank 11, along the axial direction of the screw 20, the screw 20 has a plurality of working sections 21, The outer surface of each working section 21 is provided with a plurality of spiral ribs 211, as shown in Figure 1, Figure 5 and Figure 7, the filter frame 30 is clamped in the juice collection cup 10, and the screw rod 20 is located in the filter frame 30 , a filter screen (not shown) is installed on the filter screen frame 30, and a juice collection cavity is formed between the filter screen and the cup wall of the juice collection cup 10; as shown in Figure 5, Figure 6 and Figure 7, along the filter screen In the circumferential direction of the frame 30 , a plurality of ribs 31 are provided on the inner surface of the screen frame 30 corresponding to each working section 21 .

Preferably, the slag outlet 111 is arranged on the side wall of the slag collecting tank 11; there is a gap between each convex rib 31 and the plurality of spiral ribs 211 of the corresponding working section 21, and the gap is greater than or equal to 0.1 mm and less than Equal to 1mm; the filter screen holder 30 is a tapered tube.

The screw squeeze juice extractor 100 provided in this embodiment has the advantages of smooth slag extraction, easy cleaning, and high juice yield. Specifically, the juice extractor used in the prior art has too low a surface height, resulting in the pomace The space for pushing down is not enough, which makes it difficult to press down the pomace. However, the screw squeeze juice extractor 100 provided in this embodiment divides the screw 20 into a plurality of working sections 21 along the axial direction of the screw 20, and in each A plurality of spiral ribs 211 are arranged on the outer surface of the working section 21, and along the circumferential direction of the screen holder 30, a plurality of convex ribs 31 are arranged corresponding to each working section 21 on the inner surface of the screen holder 30, and each There is a gap greater than or equal to 0.1 mm and less than or equal to 1 mm between the convex rib 31 and the plurality of spiral ribs 211 of the corresponding working section 21, that is, the outer surface of the spiral rib 211 provided on the screw 20 and the inner surface of the filter frame 30 There is always a gap of 0.1 mm to 1 mm between the convex ribs 31 provided on the wall surface. Such a structure makes there always be a reasonable distance between the outer surface of the spiral rib 211 and the convex ribs 31 of the filter frame 30, effectively avoiding the Because the ribs 31 on the upper part of the filter frame 30 protrude too much from the inner surface of the filter frame 30, after the fruits and vegetables are squeezed, the pomace remains between the ribs 31 and the wall of the filter screen, and/or, because it is located in the filter frame The protruding ribs 31 at the lower part of 30 protrude too little from the inner surface of the filter frame 30, resulting in insufficient space for the pomace to push down, making it difficult to press down the pomace, so that the screw extrusion juice extractor 100 can discharge the pomace smoothly , thereby making the cleaning of the screw squeeze juice extractor 100 simple and convenient, and effectively improving the juice yield of the screw squeeze juice extractor 100; in addition, due to the filter frame 30 used in the prior art, during installation, The axial slag discharge port 111 arranged on the bottom surface of the filter frame 30 needs to be aligned with the slag discharge port 111 at the bottom of the juice collection cup 10, and the slag discharge port 111 forms an included angle of 90° with the direction of rotation of the screw 20, while in this embodiment The provided filter frame 30 is designed as a straight-through structure, and there is no ring-shaped slag discharge channel and slag discharge port 111 at the bottom. The method is simple and reliable, so that the installation of the filter frame 30 is simple and convenient, and the slag discharge port 111 is set on the bottom side of the juice collection cup 10, that is, the slag discharge port 111 is consistent with the direction in which the screw rod 20 pushes the residue, so that the screw rod 20 rotates along the The residue extruded in the tangential direction can be easily discharged from the slag discharge port 111, thereby effectively solving the problem of poor slag discharge, making the slag discharge of the screw extrusion juicer 100 smoother, and effectively improving the quality of the product .

It should be noted that a juice outlet (not shown in the figure) is also provided on the cup wall of the juice collection cup 10, the juice outlet is located above the slag collection tank 11, and the lower end surface of the cup wall of the juice collection cup 10 is not lower than On the bottom surface of the slag collection tank 11 , a slag discharge channel communicating with the slag discharge port 111 is formed on the juice collection cup 10 .

Preferably, the taper of the side wall of the filter frame 30 is greater than or equal to 12 degrees and less than or equal to 30 degrees; along the radial direction of the filter frame 30 , the height of each rib 31 is greater than or equal to 2mm.

Among them, the taper refers to the ratio of the diameter of the bottom surface of the tapered tube to the height of the tapered tube. After many tests, when the taper of the side wall of the filter frame 30 ranges from 12 degrees to 30 degrees, it is located at the filter The rib 31 at the lower end of the grid frame 30 should protrude from the inner surface of the screen frame 30 by at least 2mm, and the gap between the outer surface of the spiral rib 211 on the screw rod 20 and the rib 31 on the inner wall surface of the filter frame 30 is less than 1mm. When there is a gap, the screw extrusion juice extractor 100 has the smoothest slag extraction and the highest juice yield.

Specifically, as shown in FIGS. 5 and 7 , along the radial direction of the filter frame 30 , a plurality of ribs 31 are uniformly arranged on the inner surface of the filter frame 30 .

A plurality of ribs 31 are evenly arranged on the inner surface of the filter frame 30. On the one hand, the pulp is more evenly squeezed between the screw rod 20 and the filter frame 30, thereby improving the juice yield; The pomace in the filter frame 30 is evenly distributed, so that the pomace can enter the slag collection tank 11 more evenly, and then the screw extrusion juice extractor 100 can discharge the pomace smoothly.

Further, preferably, as shown in FIG. 3 , along the axial direction of the screw, a plurality of ribs 31 are connected in a stepped shape.

Wherein, the connection between the two connected convex ribs 31 may be a smooth transition connection, or a step-like connection, etc., which will not be repeated here.

Specifically, as shown in Figure 3, the screw rod 20 has a first working section and a second working section, a first rib 311 is provided on the screen holder 3 corresponding to the first working section, and a first rib 311 is arranged corresponding to the second working section. There is a second convex rib 312, the lower end surface of the spiral rib arranged on the first working section is located above the upper end surface of the second convex rib 312, and the lower end surface of the spiral rib arranged on the first working section is aligned with the second convex rib. There is a gap greater than or equal to 0.1mm and less than or equal to 1mm between the upper end surfaces of the ribs 312. Such a structure enables the spiral ribs arranged on the screw rod and the convex ribs on the filter frame to better squeeze the food materials, thereby effectively Increased juice yield.

It should be noted that, in Figures 1 to 7, the screw has two working sections, and the inner surface of the screen holder is provided with two kinds of ribs corresponding to the two working sections of the screw, but the screw extrusion type provided by the present invention The juice extractor is not limited to this form, the screw can have more than two working sections, and the inner surface of the filter frame is provided with more than two kinds of ribs corresponding to the two or more working sections of the screw, which will not be repeated here. But its application all should be within the scope of protection of the present invention.

Optionally, a plurality of raised ribs 31 are integrated with the filter frame 30; a plurality of spiral ribs 211 are integrated with the screw rod 20.

The integrated structure has good mechanical properties, and the integrated structure of multiple ribs 31 and the filter frame 30 effectively ensures the connection strength between the multiple ribs 31 and the filter frame 30. In order to reduce production costs and improve production Efficiency, multiple convex ribs 31 and filter frame 30 can be integrally injection molded for mass production; multiple spiral ribs 211 and screw rod 20 are integrated structure, which also effectively ensures the connection between multiple spiral ribs 211 and screw rod 20 For connection strength, in order to reduce production cost and improve production efficiency, multiple spiral ribs 211 and screw rod 20 can also be integrally injection molded for mass production.

Preferably, an adjusting device (not shown in the figure) for adjusting the area of the slag discharge port 111 is installed on one side of the slag discharge port 111 .

When squeezing hard fruits and vegetables, the adjusting device moves outwards for an appropriate distance along the side wall of the slag collecting tank 11, so that the area of the slag discharge port 111 is increased to facilitate the flow of fruit residues; on the contrary, when squeezing soft fruits and vegetables, The adjusting device moves inward for an appropriate distance along the side of the slag collecting tank 11, so that the area of the slag discharge port 111 is reduced to reduce the speed of the pomace flowing out, so that fruits and vegetables of different hardness are squeezed in the juice extractor The time is more reasonable, thereby effectively improving the juice yield, thereby effectively improving the quality of the product.

In one embodiment of the present invention, specifically, the slag scraping part 22 is a spiral scraping rib (not shown in the figure) provided at the lower end of the screw rod 20 .

The setting of the spiral scraping ribs enables the residue in the slag collecting tank 11 to rotate with the screw 20 and be easily discharged out of the slag discharge port 111 under the action of the spiral scraping ribs. In addition, the relative sliding between the helical structure and the residue is not easy to occur, so that the scraping The dregs part 22 can discharge all the dregs in the dregs collecting tank 11 out of the dregs outlet 111 , so that the screw squeeze juice extractor 100 does not have the problem of dregs accumulation.

Preferably, the spiral scraping rib is a stainless steel spiral scraping rib or a polyetherimide spiral scraping rib, and the bottom surface of the juice collection cup 10 is a stainless steel plate or a polyetherimide plate.

Optionally, the spiral scraping rib and the screw 20 are integrally structured.

The integrated structure has good mechanical properties. The integrated structure of the spiral scraping rib and the screw rod 20 effectively ensures the connection strength between the spiral scraping rib and the screw rod 20. In order to reduce production costs and improve production efficiency, the spiral scraping rib and the screw rod 20 can be combined The screw rod 20 is made in one piece and mass-produced.

In another embodiment of the present invention, as shown in FIG. 1 , FIG. 2 and FIG. 4 , the slag scraping portion 22 is a plurality of scraping ribs arranged at the lower end of the screw 20 along the axial direction of the juice collection cup 10 , and the slag collection groove 11 A plurality of anti-slip retaining ribs 112 are arranged inside, and there is a gap between the anti-slip retaining ribs 112 and the scraping ribs.

When the screw 20 rotates, the scraping ribs arranged at the lower end of the screw 20 rotate with the screw 20 to push the residue in the slag collection tank 11 to the slag discharge port 111, in order to avoid the gap between the scraping ribs and the side wall of the slag collection tank 11 Filling, so that the scraping ribs and the residues slide relative to each other, so that the scraping ribs cannot push the residue in the slag collection tank 11 to the slag discharge port 111. Anti-slip ribs are set in the slag collection tank 11 to decompose the force on the residue. In order to avoid the relative sliding between scraping ribs and residues, the problem of slag accumulation is solved.

Preferably, the multiple scraping ribs are all stainless steel scraping ribs or polyetherimide scraping ribs, and the bottom surface of the juice collection cup 10 is a stainless steel plate or a polyetherimide plate.

Optionally, the rib scraping and the screw 20 are in an integral structure.

The mechanical properties of the integrated structure are good. The integrated structure of the scraping rib and the screw 20 effectively ensures the connection strength between the scraping rib and the screw 20. In order to reduce production costs and improve production efficiency, the scraping rib and the screw 20 can be integrated. Made, mass produced.

In summary, in the screw squeeze juice extractor provided by the present invention, there is always a gap of 0.1 mm to 1 mm between the outer surface of the spiral rib on the screw rod and the rib on the inner wall surface of the filter screen frame. Such a structure , so that there is always a reasonable distance between the outer surface of the spiral rib and the inner wall of the filter frame, which effectively avoids excessive protrusion of the inner surface of the filter frame due to the protruding ribs located on the upper part of the filter frame. The pomace is trapped between the ribs and the screen wall, and/or, because the ribs located at the lower part of the screen frame protrude too little from the inner surface of the screen frame, there is not enough space for the pomace to push down, causing the pomace to press down Difficult situations occur, so that the slag discharge of the screw extrusion juicer is smooth, and the cleaning of the screw extrusion juicer is simple and convenient, and at the same time, the juice yield of the screw extrusion juicer is effectively improved.

In the description of the present invention, the term "multiple" refers to two or more, and the terms "installation", "connection", "connection", "fixation" and the like should be understood in a broad sense. For example, "connection" can be A fixed connection can also be a detachable connection, or an integral connection; "connection" can be a direct connection or an indirect connection through an intermediary. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention according to specific situations.

In the description of this specification, descriptions of the terms "one embodiment", "specific embodiment" and the like mean that specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or embodiment of the present invention. example. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims (14)

1. A screw extruding juice extractor, characterized in that, comprising: A juice collection cup, the bottom surface of the juice collection cup is provided with a slag collection tank, and the slag collection tank is provided with a slag discharge port; Screw, the screw is arranged in the juice collection cup along the axial direction of the juice collection cup, the lower end of the screw is provided with a slag scraping part, the slag scraping part is located in the slag collection groove, along the the axial direction of the screw, the screw has a plurality of working sections, and the outer surface of each working section is provided with a plurality of helical ribs; and A filter frame, the filter frame is clamped in the juice collection cup, the screw is located in the filter frame, a filter screen is installed on the filter frame, the filter screen and the juice collection cup A juice collection cavity is formed between the cup walls; along the circumference of the filter frame, a plurality of ribs are provided on the inner surface of the filter frame corresponding to each of the working sections; Wherein, there is a gap between each of the convex ribs and the multiple spiral ribs of the corresponding working section, and the gaps are greater than or equal to 0.1 mm and less than or equal to 1 mm. 2. The screw extrusion juice extractor according to claim 1, characterized in that, The slag outlet is arranged on the side wall of the slag collecting tank. 3. The screw extrusion type juice extractor according to claim 1, characterized in that, The screen holder is in the shape of a tapered tube. 4. The screw extrusion juice extractor according to claim 3, characterized in that, The taper of the side wall of the screen holder is greater than or equal to 12 degrees and less than or equal to 30 degrees. 5. The screw extrusion juice extractor according to claim 4, characterized in that, Along the radial direction of the screen holder, the height of each rib is greater than or equal to 2mm. 6. The screw extrusion juice extractor according to claim 5, characterized in that, Along the radial direction of the screen frame, a plurality of ribs are uniformly arranged on the inner surface of the screen frame. 7. The screw extrusion juice extractor according to claim 6, characterized in that, Along the axial direction of the screen holder, a plurality of ribs are connected to form a stepped shape. 8. The screw extrusion juice extractor according to claim 7, characterized in that, The screw rod has a first working section and a second working section, the filter frame is provided with a first rib corresponding to the first working section, and a second rib is provided corresponding to the second working section. Rib, the lower end surface of the spiral rib arranged on the first working section is located above the upper end surface of the second convex rib, and the lower end surface of the spiral rib arranged on the first working section There is a gap greater than or equal to 0.1 mm and less than or equal to 1 mm from the upper end surface of the second rib. 9. The screw squeeze juice extractor according to any one of claims 1 to 8, characterized in that, An adjusting device for adjusting the area of the slag discharge port is installed on one side of the slag discharge port. 10. The screw extrusion juice extractor according to claim 9, characterized in that, The slag scraping part is a spiral scraping rib arranged at the lower end of the screw rod. 11. The screw extrusion juice extractor according to claim 10, characterized in that, The slag scraping part is a plurality of scraping ribs arranged at the lower end of the screw rod along the axial direction of the juice collection cup, and a plurality of anti-slip ribs are arranged in the slag collecting groove, and the anti-slip ribs are connected with the scraper There are gaps between the ribs. 12. The screw extrusion juice extractor according to claim 11, characterized in that, The scraping ribs are stainless steel scraping ribs or polyetherimide scraping ribs, and the bottom surface of the juice collection cup is a stainless steel plate or polyetherimide plate. 13. The screw squeeze juice extractor according to any one of claims 1 to 8, characterized in that, A plurality of ribs and the screen frame are integrally structured. 14. The screw squeeze juice extractor according to any one of claims 1 to 8, characterized in that, The plurality of spiral ribs and the screw rod are integrally structured.