Grading presser

Abstract

The utility model discloses a grading squeezer, which relates to the technical field of squeezers and comprises a first support plate. A second-stage squeezing structure is arranged in the middle of the upper end of the first supporting plate and comprises a shell, the lower end of the shell is fixedly connected with the upper end of the first supporting plate, a second hydraulic cylinder is fixedly connected to one side of the shell, and the output end of the second hydraulic cylinder penetrates through the outer surface of the shell and extends into an inner cavity of the shell; the side, close to the second hydraulic cylinder, of the square row is fixedly connected with the output end of the second hydraulic cylinder. Raw materials placed in the inner cavity of the juicing bin structure are primarily squeezed through the pressing plate structure according to the characteristics of the raw materials and the specific squeezing requirements, then squeezed liquid is collected through the first juice collecting bin, and the liquid is collected through the cooperation of the square row and the second hydraulic cylinder. And therefore, the raw materials subjected to primary squeezing can be pressurized and squeezed, residual liquid in the raw materials can be further squeezed out, and the squeezing efficiency of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of squeezers, in particular to a grading squeezer. Background Art

[0002] The graded press is a device widely used in the food, chemical and biotechnology industries. It is mainly used to extract oil or other liquid components from materials. Its working principle is based on the graded pressing technology, that is, by gradually pressurizing and pressing the material to maximize the extraction of the required components. The graded press has been widely welcomed by the market for its advantages such as high efficiency, energy saving and environmental protection.

[0003] Traditional presses mainly rely on a single pressing method, which often has limited efficiency in squeezing materials and is unable to meet the urgent needs of modern production for high output and high efficiency. Due to the lack of graded pressurization and pressing functions, traditional presses are unable to perform fine pressure regulation and optimization of the pressing process according to the characteristics of the material and the specific needs of the pressing, making it difficult to achieve efficient and full squeezing of the material. In addition, traditional presses also have shortcomings in liquid filtration, and are often unable to deeply filter the liquid multiple times, which results in the extracted liquid components possibly containing impurities, affecting the purity and quality of the product.

[0004] Chinese patent document CN209552506U discloses a press, including a lower support, a press shell, a vertical extrusion plate and a horizontal extrusion plate, a press table is welded on the upper side of the lower support, a press shell is placed on the upper side of the press table, an upper support is installed on the upper side of the lower support, a first hydraulic cylinder is installed on the top of the upper support, a first telescopic rod is connected to the lower side of the first hydraulic cylinder, and one end of the first telescopic rod extends to the bottom of the press shell, a vertical extrusion plate is installed at the lower end of the first telescopic rod, and second hydraulic cylinders are fixedly installed on both side walls of the press shell, one end of the second hydraulic cylinder is connected to the second telescopic rod, and one end of the second telescopic rod penetrates the side wall of the press shell and is installed with a horizontal extrusion plate; however, there are still the following defects in the implementation process:

[0005] Although the device in the above document can perform vertical and horizontal pressing through the vertical pressing plates and horizontal pressing plates, the device in the above document cannot gradually increase the pressure and press according to the characteristics and pressing requirements of different materials, so as to achieve efficient and sufficient pressing of the materials. In addition, the device in the above document is not equipped with an efficient filtering system and separation device to further improve the quality of the extracted liquid product. Utility Model Content

[0006] The purpose of the utility model is to provide a grading press to solve the problems raised in the above background technology.

[0007] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0008] A grading press comprises a support plate 1; legs are fixedly connected to the four sides of the lower end of the support plate; a support plate 2 is fixedly connected to one side of the upper end of the support plate 1; a feed funnel is fixedly connected to one side of the upper part of the support plate 2; a pressing plate structure is arranged on one side of the upper part of the support plate 2, and the pressing plate structure is used for primary pressing; a secondary pressing structure is arranged in the middle of the upper end of the support plate 1; the secondary pressing structure comprises an outer shell; the lower end of the outer shell is fixedly connected to the upper end of the support plate 1; a hydraulic cylinder 2 is fixedly connected to one side of the outer shell; and the output end of the hydraulic cylinder 2 penetrates the outer surface of the outer shell and extends to In the inner cavity of the outer shell, a square row is slidably connected to the inner cavity of the outer shell, a side of the square row close to the hydraulic cylinder 2 is fixedly connected to the output end of the hydraulic cylinder 2, a side of the hydraulic cylinder 2 away from the outer shell is fixedly connected to the support plate 2, the upper end of the outer shell is fixedly connected to a first-level squeezing structure, the first-level squeezing structure includes a juice bin structure, the lower end of the juice bin structure is fixedly connected to the upper end of the outer shell, a juice bin 1 is fixedly connected to the outer surface of the juice bin structure, a liquid infusion tube 1 is fixedly connected to the lower part of the juice bin, and an input end of the liquid infusion tube 1 passes through the outer surface of the juice bin 1 and extends to the inner cavity of the juice bin 1.

[0009] A further improvement of the technical solution of the utility model is that a baffle is slidably connected to the side of the shell away from the second hydraulic cylinder, a waste plate is fixedly connected to the side of the shell close to the baffle, a slide groove is opened in the middle of the shell, a filter box is slidably connected to the inner cavity of the slide groove, a liquid outlet pipe is fixedly connected to one side of the lower part of the shell, and the liquid outlet pipe passes through the outer surface of the shell and extends into the inner cavity of the shell.

[0010] The above-mentioned technical scheme is adopted, in which the outer shell and the baffle cooperate to provide a closed space for the device to perform secondary pressing, thereby preventing the liquid from flowing out of the device. The squeezed liquid can be secondary filtered through the filter in the middle of the square row and the filter on the bottom wall of the inner cavity of the filter box, thereby improving the filtration efficiency and quality of the device.

[0011] A further improvement of the technical solution of the utility model is that the first-stage pressing structure includes a pressing chamber, the lower part of the inner cavity of the pressing chamber is symmetrically rotatably connected to a bottom plate, the lower part of the pressing chamber is slidably connected to a support rod, and the support rod is slidably connected to the two bottom plates.

[0012] The above technical solution is adopted, in which the support rod and the two bottom plates are coordinated so that the positions of the two bottom plates can be limited by the support rod, and then support can be provided for the objects placed in the inner cavity of the pressing chamber during pressing. Through a number of holes opened in the middle of the pressing chamber, the squeezed liquid can be discharged from the inner cavity of the pressing chamber through the holes and then collected.

[0013] A further improvement of the technical solution of the utility model is that the lower part of the feed funnel is fixedly connected to the upper part of the pressing chamber, and the inner cavity of the feed funnel is communicated with the inner cavity of the pressing chamber.

[0014] By adopting the above technical solution, the feed hopper and the pressing chamber cooperate with each other, so that the raw materials can be transported from the inner cavity of the feed funnel to the inner cavity of the pressing chamber, thereby providing stable raw material transportation for the device when the raw materials are pressed.

[0015] A further improvement of the technical solution of the utility model is that the horizontal height of the side of the bottom wall of the inner cavity of the shell away from the liquid outlet pipe is higher than the horizontal height of the side of the bottom wall of the inner cavity of the shell close to the liquid outlet pipe.

[0016] By adopting the above technical solution, since the horizontal height of the bottom wall of the inner cavity of the shell on one side is higher than the horizontal height of the bottom wall of the inner cavity on the other side, it is convenient to discharge the liquid collected in the inner cavity of the shell from the liquid outlet pipe and then collect the liquid.

[0017] A further improvement of the technical solution of the utility model is that: an output end of the infusion tube 1 penetrates the outer surface of the shell and extends to the inner cavity of the shell, and the infusion tube 1 is located above the filter box.

[0018] By adopting the above technical solution, the liquid collected in the inner cavity of the juice collection bin can be transported to the inner cavity of the outer shell through the infusion tube, and then filtered through the infusion tube, and some impurities such as solid particles in the liquid are intercepted, thereby improving the quality of the liquid.

[0019] A further improvement of the technical solution of the utility model is that: the pressure plate structure includes a hydraulic cylinder 1, which is fixedly connected to the upper end of the feed funnel, and the output end of the hydraulic cylinder 1 penetrates the upper end of the feed funnel and extends to the lower part, the output end of the hydraulic cylinder 1 is fixedly connected to a circular row, the upper end of the circular row is symmetrically fixedly connected to a telescopic rod, the telescopic rod is fixedly connected to the upper end of the feed funnel, and the output end of the telescopic rod penetrates the upper end of the feed funnel and extends to the lower part and is fixedly connected to the upper end of the circular row.

[0020] The above technical solution is adopted, in which the circular row is pushed to move by an output end of the hydraulic cylinder, thereby driving the circular row to move in the inner cavity of the pressing chamber, and then the raw materials placed in the inner cavity of the pressing chamber are initially pressed, and the telescopic rod and the circular row are coordinated, so that the telescopic rod can be used to connect the circular row.

[0021] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:

[0022] 1. The utility model provides a grading squeezer, which can use a pressing plate structure to squeeze the raw materials placed in the inner cavity of a juice extraction bin structure for the first time according to the characteristics of the raw materials and the specific needs of squeezing, and then use a juice collection bin to collect the squeezed liquid, and then use a liquid infusion tube to transport the liquid to the inner cavity of an outer shell, and filter it through a secondary squeezing structure, thereby improving the quality of the liquid, and through the cooperation of a square row and a hydraulic cylinder two, the raw materials after the first squeezing can be pressurized and squeezed, so that the residual liquid in the raw materials can be further squeezed out, thereby improving the squeezing efficiency of the device, and then the filter screen in the middle of the inner cavity of the outer shell and the filter screen on the bottom wall of the inner cavity of the filter box are used for double filtration, thereby further improving the quality of the liquid product squeezed by the device.

[0023] 2. The utility model provides a grading press. Since the horizontal height of the bottom wall of the inner cavity of the shell on one side is higher than that of the bottom wall of the inner cavity of the shell on the other side, the liquid collected in the inner cavity of the shell flows from the side with the higher horizontal height of the bottom wall of the inner cavity of the shell to the other side, so that the liquid in the inner cavity of the shell is conveniently discharged from the inner cavity of the shell by using a liquid outlet pipe, so that the liquid is conveniently collected. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The utility model will be further described below in conjunction with the accompanying drawings.

[0025] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0026] Figure 2 It is a partial cross-sectional schematic diagram of the overall structure of the utility model;

[0027] Figure 3 This is a schematic diagram of the primary pressing structure of the utility model;

[0028] Figure 4 This is a schematic diagram of the structure of the juice extraction bin of the utility model;

[0029] Figure 5 It is a schematic diagram of the two-stage pressing structure of the utility model;

[0030] Figure 6 It is a schematic diagram of the housing of the utility model;

[0031] In the figure: 1. Support plate 1; 2. Support foot; 3. Support plate 2; 4. Feed funnel; 5. Press plate structure; 51. Hydraulic cylinder 1; 52. Round row; 53. Telescopic rod; 6. Primary pressing structure; 61. Juice bin structure; 611. Pressing chamber; 612. Bottom plate; 613. Support rod; 62. Juice bin 1; 63. Infusion tube 1; 7. Secondary pressing structure; 71. Shell; 72. Square row; 73. Hydraulic cylinder 2; 74. Baffle; 75. Waste plate; 76. Filter box; 77. Liquid outlet pipe. DETAILED DESCRIPTION

[0032] The present invention is further described in detail below in conjunction with the embodiments:

[0033] Example 1

[0034] like Figure 1-6 As shown, the utility model provides a grading press, including a support plate 1; the lower end of the support plate 1 is fixedly connected with supporting feet 2 all around, the upper end of the support plate 1 is fixedly connected with a support plate 2 3, the upper side of the support plate 2 3 is fixedly connected with a feeding funnel 4, the upper side of the support plate 2 3 is provided with a pressing plate structure 5, the pressing plate structure 5 is used for primary pressing, the middle part of the upper end of the support plate 1 is provided with a secondary pressing structure 7, the secondary pressing structure 7 includes a shell 71, the lower end of the shell 71 is fixedly connected to the upper end of the support plate 1, one side of the shell 71 is fixedly connected with a hydraulic cylinder 2 73, and the output end of the hydraulic cylinder 2 73 passes through the outer surface of the shell 71 and extends to the shell In the inner cavity 71, the inner cavity of the shell 71 is slidably connected with a square row 72, the side of the square row 72 close to the hydraulic cylinder 2 73 is fixedly connected to the output end of the hydraulic cylinder 2 73, the side of the hydraulic cylinder 2 73 away from the shell 71 is fixedly connected to the support plate 2 3, the upper end of the shell 71 is fixedly connected with a primary squeezing structure 6, the primary squeezing structure 6 includes a juice bin structure 61, the lower end of the juice bin structure 61 is fixedly connected to the upper end of the shell 71, the outer surface of the juice bin structure 61 is fixedly connected with a juice bin 1 62, the lower part of the juice bin 1 62 is fixedly connected with an infusion tube 1 63, and the input end of the infusion tube 1 63 passes through the outer surface of the juice bin 1 62 and extends to the inner cavity of the juice bin 1 62.

[0035] In this embodiment, the device can be supported and connected by the cooperation of the support plate 1 and the support leg 2, and the feed funnel 4 and the pressure plate structure 5 are supported and connected by the support plate 2 3. The raw materials can be transported to the inner cavity of the juice extraction bin structure 61 through the feed funnel 4, and the raw materials can be initially squeezed through the pressure plate structure 5. Through the cooperation of the juice collection bin 62 and the infusion tube 63, the liquid collected in the juice collection bin 62 can be transported to the inner cavity of the outer shell 71, and then filtered through the secondary squeezing structure 7. Through the cooperation of the juice extraction bin structure 61 and the outer shell 71, the raw materials after the first squeezing can be transported to the inner cavity of the outer shell 71, and then squeezed for the second time through the cooperation of the square row 72 and the hydraulic cylinder 2 73.

[0036] Example 2

[0037] like Figure 2 and Figure 4As shown, on the basis of Example 1, the utility model provides a technical solution: preferably, the primary pressing structure 6 includes a pressing chamber 611, the lower part of the inner cavity of the pressing chamber 611 is symmetrically rotatably connected to a bottom plate 612, the lower part of the pressing chamber 611 is slidably connected to a support rod 613, the support rod 613 is slidably connected to the two bottom plates 612, the lower part of the feed funnel 4 is fixedly connected to the upper part of the pressing chamber 611, and the inner cavity of the feed funnel 4 is communicated with the inner cavity of the pressing chamber 611;

[0038] The pressure plate structure 5 includes a hydraulic cylinder 51, which is fixedly connected to the upper end of the feed funnel 4, and the output end of the hydraulic cylinder 51 penetrates the upper end of the feed funnel 4 and extends to the lower part, the output end of the hydraulic cylinder 51 is fixedly connected to a circular row 52, ​​and the upper end of the circular row 52 is symmetrically fixedly connected to a telescopic rod 53, the telescopic rod 53 is fixedly connected to the upper end of the feed funnel 4, and the output end of the telescopic rod 53 penetrates the upper end of the feed funnel 4 and extends to the lower part and is fixedly connected to the upper end of the circular row 52, ​​the output end of the infusion tube 63 penetrates the outer surface of the outer shell 71 and extends to the inner cavity of the outer shell 71, and the infusion tube 63 is located above the filter box 76.

[0039] In this embodiment, the raw material to be squeezed is transported to the inner cavity of the pressing chamber 611 through the feed funnel 4, and then the hydraulic cylinder 51 is operated, and the output end of the hydraulic cylinder 51 is used to push the circular row 52 to move toward the bottom plate 612, and then the circular row 52 is used to drive the two telescopic rods 53 to operate. Through the cooperation of the circular row 52, ​​the pressing chamber 611 and the two bottom plates 612, the raw material can be squeezed once, so that the liquid in the raw material can be squeezed out, and then the squeezed liquid will flow into the inner cavity of the juice collection bin 62 through a number of holes on the pressing chamber 611, and then these liquids will be transported to the inner cavity of the outer shell 71 through the infusion tube 63.

[0040] Example 3

[0041] like Figure 3 and Figure 5 As shown, on the basis of Example 2, the utility model provides a technical solution: preferably, the side of the outer shell 71 away from the hydraulic cylinder 2 73 is slidably connected with a baffle 74, the side of the outer shell 71 close to the baffle 74 is fixedly connected with a waste plate 75, a slide groove is opened in the middle of the outer shell 71, and a filter box 76 is slidably connected to the inner cavity of the slide groove, and a liquid outlet pipe 77 is fixedly connected to one side of the lower part of the outer shell 71, and the liquid outlet pipe 77 passes through the outer surface of the outer shell 71 and extends into the inner cavity of the outer shell 71.

[0042] In this embodiment, after the raw material has been squeezed once, the staff can slide the support rod 613 out from the middle of the two bottom plates 612 and the lower part of the pressing chamber 611 to release the position limit of the two bottom plates 612, so that the two bottom plates 612 will be driven to rotate under the action of the raw material, and then the raw material in the inner cavity of the pressing chamber 611 will fall into the inner cavity of the shell 71, and then the two bottom plates 612 will be reset, and then the support rod 613 will be reset, and then new raw material to be squeezed will be transported to the inner cavity of the pressing chamber 611 through the feed funnel 4, and the pressing plate structure 5 will repeat the above steps to squeeze the raw material once. At the same time, the raw material transported to the inner cavity of the shell 71, under the operation of the hydraulic cylinder 2 73, the hydraulic cylinder The output end of the second 73 will push the square row 72 to slide in the inner cavity of the shell 71, and then the raw material in the inner cavity of the shell 71 will be squeezed for a second time. The squeezed liquid will flow into the inner cavity of the filter box 76 through the filter holes of the mesh plate in the middle of the shell 71, and then it will be filtered for a second time through the filter on the bottom wall of the inner cavity of the filter box 76. The filtered liquid will be collected in the lower part of the inner cavity of the shell 71. When the raw material in the inner cavity of the shell 71 is squeezed to a certain extent, the staff will slide the baffle 74 upward and pull it out to release the closure of the inner cavity of the shell 71, and then through the cooperation of the hydraulic cylinder 2 73 and the square row 72, the raw material residue in the inner cavity of the shell 71 can be pushed out of the inner cavity of the shell 71, and then the residue will be transported to the residue storage barrel through the waste plate 75.

[0043] Example 4

[0044] like Figure 6 As shown, based on Example 3, the utility model provides a technical solution: preferably, the horizontal height of the side of the inner cavity bottom wall of the shell 71 away from the liquid outlet pipe 77 is higher than the horizontal height of the side of the inner cavity bottom wall of the shell 71 close to the liquid outlet pipe 77.

[0045] In this embodiment, the liquid after secondary filtration will be collected at the lower part of the shell 71, so that the staff can collect it through the liquid outlet pipe 77.

[0046] The following is a detailed description of the working principle of the grading press.

[0047] like Figure 1-6 As shown, when the raw material needs to be squeezed, the raw material to be squeezed is first transported to the inner cavity of the squeezing chamber 611 through the feed funnel 4, and then the hydraulic cylinder 51 is operated, and the output end of the hydraulic cylinder 51 is used to push the round row 52 to move toward the bottom plate 612, and then the round row 52 is used to drive the two telescopic rods 53 to operate, and the round row 52 cooperates with the squeezing chamber 611 and the two bottom plates 612 to squeeze the raw material once, so that the liquid in the raw material can be squeezed out, and then the squeezed liquid will flow into the inner cavity of the juice collection bin 62 through a plurality of holes on the squeezing chamber 611, and then these liquids will be transported to the inner cavity of the shell 71 through the infusion tube 63;

[0048] When the raw material has been squeezed once, the staff can slide the support rod 613 out from the middle of the two bottom plates 612 and the lower part of the pressing chamber 611 to release the position limit of the two bottom plates 612, so that the two bottom plates 612 will be driven to rotate under the action of the raw material, and then the raw material in the inner cavity of the pressing chamber 611 will fall into the inner cavity of the shell 71, and then the two bottom plates 612 will be reset, and then the support rod 613 will be reset, and then new raw material to be squeezed will be transported to the inner cavity of the pressing chamber 611 through the feed funnel 4, and the pressing plate structure 5 will repeat the above steps to squeeze the raw material once. At the same time, the raw material transported to the inner cavity of the shell 71 is operated by the hydraulic cylinder 2 73. The output end will push the square row 72 to slide in the inner cavity of the shell 71, and then perform secondary squeezing on the raw materials in the inner cavity of the shell 71. The squeezed liquid will flow into the inner cavity of the filter box 76 through the filter holes of the mesh plate in the middle of the shell 71, and then be filtered for secondary use through the filter screen on the bottom wall of the inner cavity of the filter box 76. The filtered liquid will be collected in the lower part of the inner cavity of the shell 71. When the raw materials in the inner cavity of the shell 71 are squeezed to a certain extent, the staff will slide the baffle plate 74 upward and remove it to release the seal of the inner cavity of the shell 71. Then, through the cooperation of the hydraulic cylinder 2 73 and the square row 72, the raw material residue in the inner cavity of the shell 71 can be pushed out of the inner cavity of the shell 71, and then the residue will be transported to the residue storage barrel through the waste plate 75.

[0049] The liquid after the secondary filtration will be collected at the lower part of the shell 71, so that the staff can collect it through the liquid outlet pipe 77.

[0050] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A grading press, comprising a support plate (1); characterized in that: The lower end of the support plate 1 (1) is fixedly connected with supporting feet (2) all around, the upper end of the support plate 1 (1) is fixedly connected with a support plate 2 (3), the upper end of the support plate 2 (3) is fixedly connected with a feeding funnel (4), the upper end of the support plate 2 (3) is fixedly connected with a pressing plate structure (5), the pressing plate structure (5) is used for initial pressing, the middle of the upper end of the support plate 1 (1) is provided with a secondary pressing structure (7), the secondary pressing structure (7) comprises an outer shell (71), the lower end of the outer shell (71) is fixedly connected to the upper end of the support plate 1 (1), one side of the outer shell (71) is fixedly connected with a hydraulic cylinder 2 (73), and the output end of the hydraulic cylinder 2 (73) passes through the outer surface of the outer shell (71) and extends into the inner cavity of the outer shell (71), the outer shell (71) is provided with a pressure plate structure (5), and the pressure plate structure (5) is used for initial pressing, and the middle of the upper end of the support plate 1 (1) is provided with a secondary pressing structure (7), the secondary pressing structure (7) comprises an outer shell (71), the lower end of the outer shell (71) is fixedly connected to the upper end of the support plate 1 (1), the outer shell (71) is fixedly connected with a hydraulic cylinder 2 (73), and the output end of the hydraulic cylinder 2 (73) passes through the outer surface of the outer shell (71) and extends into the inner cavity of the outer shell (71), and the outer shell (71) ) is slidably connected to the inner cavity of the hydraulic cylinder (71), the side of the hydraulic cylinder (71) close to the outer cylinder (73) is fixedly connected to the output end of the hydraulic cylinder (73), the side of the hydraulic cylinder (71) away from the outer shell (71) is fixedly connected to the support plate (3), the upper end of the outer shell (71) is fixedly connected to a first-level squeezing structure (6), the first-level squeezing structure (6) comprises a juice collecting bin structure (61), the lower end of the juice collecting bin structure (61) is fixedly connected to the upper end of the outer shell (71), the outer surface of the juice collecting bin structure (61) is fixedly connected to a juice collecting bin (62), the lower part of the juice collecting bin (62) is fixedly connected to a liquid infusion tube (63), and the input end of the liquid infusion tube (63) passes through the outer surface of the juice collecting bin (62) and extends into the inner cavity of the juice collecting bin (62).

2. A grading press according to claim 1, characterized in that: A baffle plate (74) is slidably connected to the side of the shell (71) away from the second hydraulic cylinder (73), a waste plate (75) is fixedly connected to the side of the shell (71) close to the baffle plate (74), a slide groove is provided in the middle of the shell (71), a filter box (76) is slidably connected to the inner cavity of the slide groove, a liquid outlet pipe (77) is fixedly connected to one side of the lower part of the shell (71), and the liquid outlet pipe (77) passes through the outer surface of the shell (71) and extends into the inner cavity of the shell (71).

3. A grading press according to claim 1, characterized in that: The primary pressing structure (6) comprises a pressing chamber (611), the lower part of the inner cavity of the pressing chamber (611) is symmetrically rotatably connected to a bottom plate (612), the lower part of the pressing chamber (611) is slidably connected to a support rod (613), and the support rod (613) is slidably connected to the two bottom plates (612).

4. A grading press according to claim 3, characterized in that: The lower part of the feed funnel (4) is fixedly connected to the upper part of the pressing chamber (611), and the inner cavity of the feed funnel (4) is in communication with the inner cavity of the pressing chamber (611).

5. A grading press according to claim 2, characterized in that: The horizontal height of the side of the inner cavity bottom wall of the shell (71) away from the liquid outlet pipe (77) is higher than the horizontal height of the side of the inner cavity bottom wall of the shell (71) close to the liquid outlet pipe (77).

6. A grading press according to claim 5, characterized in that: The output end of the infusion tube 1 (63) passes through the outer surface of the shell (71) and extends to the inner cavity of the shell (71), and the infusion tube 1 (63) is located above the filter box (76).

7. A grading press according to claim 4, characterized in that: The pressure plate structure (5) comprises a hydraulic cylinder (51), wherein the hydraulic cylinder (51) is fixedly connected to the upper end of the feed hopper (4), and the output end of the hydraulic cylinder (51) passes through the upper end of the feed hopper (4) and extends to the lower part, the output end of the hydraulic cylinder (51) is fixedly connected to a circular row (52), and the upper end of the circular row (52) is symmetrically fixedly connected to a telescopic rod (53), the telescopic rod (53) is fixedly connected to the upper end of the feed hopper (4), and the output end of the telescopic rod (53) passes through the upper end of the feed hopper (4) and extends to the lower part and is fixedly connected to the upper end of the circular row (52).

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