Material conveying and crushing device

Abstract

The present invention relates to the technical field of coal conveying and crushing. Disclosed is a material conveying and crushing device, comprising: a main body mechanism (100), which comprises a support base (101), a fixed frame (102) arranged on the support base (101), a conveyor belt (103) arranged on the fixed frame (102), a support frame (104) arranged on the support base (101), and a processing chamber (105) arranged on the support base (101); and a material discharging mechanism (200), which is arranged on the main body mechanism (100) and comprises a driving component (201) arranged on the support base (101), a transmission component (202) cooperating with the driving component (201), and a metered crushing component (203) arranged on the processing chamber (105).

Description

A material conveying and crushing device Technical Field

[0001] This invention relates to the technical field of coal conveying and crushing, and more particularly to a material conveying and crushing device. Background Technology

[0002] Existing material conveying and crushing equipment generally employs a simple conveying method: directly piling coal onto the conveyor belt for transport. While this method is straightforward in operation, the problems it brings cannot be ignored. First, the direct piling of coal puts significant pressure on the conveyor belt. Prolonged exposure to this pressure accelerates belt wear, shortening its lifespan. This translates to higher replacement frequency and maintenance costs for businesses, while also increasing the risk of production interruptions due to equipment failure.

[0003] One particularly prominent problem is that, due to the inability to precisely control the amount of coal used in a single batch, existing conveying systems often require additional sorting and piling after transporting the coal to its destination. This process is not only cumbersome and time-consuming, but also extremely inefficient, severely impacting overall work efficiency. In a high-efficiency, fast-paced production environment, this inefficient handling method has become a bottleneck restricting the improvement of production efficiency. Summary of the Invention

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0005] In view of the problem that the amount of coal used per batch needs to be controlled and that direct conveying cannot control the amount of coal conveyed, this invention is proposed.

[0006] Therefore, the purpose of this invention is to provide a material conveying and crushing device.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a main body structure, including a support base, a fixed frame disposed on the support base, a conveyor belt disposed on the fixed frame, a support frame disposed on the support base, and a processing box disposed on the support base; a feeding mechanism disposed on the main body structure, including an active component disposed on the support base, a transmission component cooperating with the active component, and a quantitative crushing component disposed on the processing box. Material enters the processing box, and by activating the active component, the transmission component moves the material, feeding the material into the quantitative crushing component for crushing.

[0008] In one embodiment, the active component includes a servo motor, a main power rod disposed on the servo motor, a positioning slide rod disposed on the machining box, a connecting slider disposed on the positioning slide rod, and a transmission and control box disposed on the machining box.

[0009] In one embodiment, a synchronous slider is provided on the outer wall of the main energy rod, a connecting sleeve is provided on the outer wall of the synchronous slider, and a cam is provided on the outer wall of the connecting sleeve.

[0010] In one embodiment, the transmission component includes a transmission rod disposed on the support frame, a turntable disposed at the end of the transmission rod, and a push-pull rod disposed at the end of the turntable.

[0011] In one embodiment, the driven component further includes a guide rod disposed on the support frame, a connecting groove disposed on the support base, and a movable slider disposed within the connecting groove.

[0012] In one embodiment, the end of the main power rod is connected to the outer wall of the transmission rod via a transmission belt.

[0013] In one embodiment, the side wall of the support base is provided with a guide groove, and a guide block is provided on the support frame. The guide block is inserted into the guide groove and can move up and down along the guide groove.

[0014] In one embodiment, the control box is provided with a pressure regulating pipe, the control box is provided with a control conduit, and the control conduit is provided with control teeth and piston rings.

[0015] In one embodiment, the quantitative pulverizing component includes a pulverizing box disposed within the processing box, a support rod disposed within the pulverizing box, a driven rod disposed on the pulverizing box, and a pulverizing blade disposed on the support rod; a feeding pipe is also connected to the end of the pulverizing box, and a sieve hole is opened at the bottom end of the pulverizing box; a rotating gear is disposed at the end of the driven rod, a control tooth meshes with the rotating gear, a limit groove is opened on the side of the control tooth, and a positioning guide block is disposed on the limit groove.

[0016] In one embodiment, a feeding box is provided below the crushing box, a feeding pipe is provided at the bottom of the feeding box, a lifting frame is also provided at the bottom of the feeding box, and a sealing block is provided at the end of the lifting frame; the sealing block is adapted to the feeding pipe.

[0017] The beneficial effects of this invention are as follows: By using the active component on the support base to drive the transmission component to move the material, the material is fed into the quantitative crushing component in the processing box for crushing, thus achieving uniform material conveying and precise control. Compared with the prior art, this invention effectively extends the service life of the conveyor belt, reduces the maintenance costs caused by uneven equipment wear, improves work efficiency, and avoids cumbersome stacking and processing steps. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0020] Figure 1 is a schematic diagram of the overall structure of the material conveying and crushing device in one or more embodiments of the present invention;

[0021] Figure 2 is a partial structural cross-sectional view of the material conveying and crushing device in one or more embodiments of the present invention;

[0022] Figure 3 is a schematic cross-sectional view of the crushing box of the material conveying and crushing device in one or more embodiments of the present invention;

[0023] Figure 4 is a schematic diagram of the internal structure of the support base of the material conveying and crushing device in one or more embodiments of the present invention;

[0024] Figure 5 is an enlarged schematic diagram of the main energy rod of the material conveying and crushing device in one or more embodiments of the present invention;

[0025] Figure 6 is a schematic diagram of the internal structure of the processing box of the material conveying and crushing device in one or more embodiments of the present invention;

[0026] Figure 7 is a schematic diagram of the transmission and control box of the material conveying and crushing device in one or more embodiments of the present invention.

[0027] Figure 8 is an enlarged schematic diagram of the transmission rod structure of the material conveying and crushing device in one or more embodiments of the present invention;

[0028] Figure 9 is a schematic diagram of the supporting frame structure of the material conveying and crushing device in one or more embodiments of the present invention;

[0029] Figure 10 is a schematic diagram of the internal structure of the feeding box of the material conveying and crushing device in one or more embodiments of the present invention.

[0030] In the diagram: 100, Main body; 101, Support base; 102, Fixing frame; 103, Conveyor belt; 104, Support frame; 104a, Guide block; 105, Processing box; 200, Unloading mechanism; 201, Active component; 201a, Servo motor; 201b, Main power rod; 201c, Positioning slide rod; 201d, Connecting slider; 201e, Control box; 201f, Synchronous slider; 201g, Connecting sleeve; 201h, Cam; 201i, Pressure regulating pipe; 201j, Control guide pipe; 201k, Control gear; 201l 202. Piston ring; 202. Transmission component; 202a. Transmission rod; 202b. Turntable; 202c. Push-pull rod; 202d. Guide rod; 202e. Connecting slide; 202f. Movable slider; 203. Quantitative crushing component; 203a. Crushing box; 203b. Support rod; 203c. Driven rod; 203d. Crushing blade; 203e. Feed pipe; 203f. Screen hole; 203g. Rotary gear; 203h. Limiting slide; 203i. Positioning guide block; 203j. Feed box; 203k. Lifting frame; 203l. Sealing block. Detailed Implementation

[0031] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0032] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0033] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0034] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth.

[0035] Example 1

[0036] Referring to Figures 1 to 10, the first embodiment of the present invention provides a material conveying and crushing device, including a main body 100, comprising a support base 101, a fixed frame 102 disposed on the support base 101, a conveyor belt 103 disposed on the fixed frame 102, a support frame 104 disposed on the support base 101, and a processing box 105 disposed on the support base 101; and a feeding mechanism 200 disposed on the main body 100, comprising an active component 201 disposed on the support base 101, a transmission component 202 cooperating with the active component 201, and a quantitative crushing component 203 disposed on the processing box 105. When material enters the processing box 105, the active component 201 drives the transmission component 202 to move the material, and the material is fed into the quantitative crushing component 203 for crushing.

[0037] In one embodiment, the active component 201 includes a servo motor 201a, a main power rod 201b disposed on the servo motor 201a, a positioning slide rod 201c disposed on the machining box 105, a connecting slider 201d disposed on the positioning slide rod 201c, and a transmission and control box 201e disposed on the machining box 105.

[0038] In one embodiment, the servo motor 201a serves as the main power source, providing precise power output to control the entire material conveying process. The main power rod 201b converts the rotational motion of the motor into linear motion, thereby driving other components. The positioning slide rod 201c and the connecting slider 201d are configured so that the movement of the main power rod 201b can be accurately transmitted to the inside of the processing box 105, realizing accurate positioning and control of the material.

[0039] The control box 201e is responsible for signal transmission and control during the material conveying process, ensuring the coordination and synchronization of the entire conveying process. Through the coordinated work of these components, the active component 201 can effectively control the conveying and crushing process of materials within the processing box 105.

[0040] In one embodiment, a synchronous slider 201f is provided on the outer wall of the main power rod 201b, a connecting sleeve 201g is provided on the outer wall of the synchronous slider 201f, a cam 201h is provided on the outer wall of the connecting sleeve 201g, and the end of the main power rod 201b is connected to the outer wall of the transmission rod 202a via a transmission belt.

[0041] In one embodiment, the cooperation between the synchronous slider 201f and the connecting sleeve 201g, and the cooperation between the connecting sleeve 201g and the cam 201h, enables the movement of the main power rod 201b to be accurately converted into the movement of other components, such as the transmission rod 202a. This arrangement not only improves the accuracy of motion transmission, but also enhances the stability and reliability of the entire device.

[0042] The end of the main power rod 201b is connected to the outer wall of the transmission rod 202a via a transmission belt, which makes the power transmission smoother, reduces energy loss, improves energy conversion efficiency, and also helps to reduce noise and vibration, thus extending the service life of the device.

[0043] Example 2

[0044] Referring to Figures 1 to 7, this embodiment differs from the first embodiment in that the transmission component 202 includes a transmission rod 202a disposed on the support frame 104, a turntable 202b disposed at the end of the transmission rod 202a, and a push-pull rod 202c disposed at the end of the turntable 202b.

[0045] In one embodiment, the transmission component 202 further includes a guide rod 202d disposed on the support frame 104, a connecting groove 202e disposed on the support base 101, and a movable slider 202f disposed in the connecting groove 202e.

[0046] In one embodiment, a guide groove is provided on the side wall of the support base 101, and a guide block 104a is provided on the support frame 104. The guide block 104a is inserted into the guide groove and can move up and down along the guide groove.

[0047] In one embodiment, a pressure regulating pipe 201i is provided on the control box 201e, a control conduit 201j is provided on the control box 201e, and a control tooth 201k and a piston ring 201l are provided on the control conduit 201j.

[0048] In one embodiment, the transmission rod 202a transmits the power of the servo motor 201a to the turntable 202b, which then pushes and pulls the material via the push-pull rod 202c, enabling effective conveying and positioning of the material within the processing box 105. The guide rod 202d, connecting groove 202e, and movable slider 202f further enhance the accuracy and stability of this power transmission. The guide rod 202d ensures the linear motion of the push-pull rod 202c during material conveying, while the connecting groove 202e and movable slider 202f allow the push-pull rod 202c to slide smoothly on the support base 101, reducing friction and wear.

[0049] The guide groove on the side wall of the support base 101 and the guide block 104a on the support frame 104 constitute a guide system, which enables the guide block 104a to move up and down along the guide groove. This provides precise vertical control for the material conveying and crushing device, ensuring the stability and uniformity of the material during the conveying process.

[0050] The pressure regulating pipe 201i and the transmission control conduit 201j on the transmission control box 201e, as well as the control gear 201k and piston ring 201l on the transmission control conduit 201j, constitute a complex hydraulic control system. This system regulates and controls the power transmission and movement of the entire material conveying and crushing device by controlling the movement of the piston ring 201l within the transmission control conduit 201j. The pressure regulating pipe 201i allows for adjustment of the hydraulic system pressure to adapt to different material characteristics and conveying requirements. The control gear 201k meshes with the rotating gear 203g, realizing the rotation of the driven rod 203c, thereby driving the crushing blade 203d to perform crushing work. This arrangement is conducive to precise control of crushing force and speed, improving crushing efficiency and uniformity.

[0051] The rest of the structure is the same as in Example 1.

[0052] Example 3

[0053] Referring to Figures 3 to 10, this embodiment differs from the previous embodiments in that: the quantitative pulverizing component 203 includes a pulverizing box 203a disposed in the processing box 105, a support rod 203b disposed in the pulverizing box 203a, a driven rod 203c disposed on the pulverizing box 203a, and a pulverizing blade 203d disposed on the support rod 203b; a feeding pipe 203e is also connected to the end of the pulverizing box 203a, and a sieve hole 203f is opened at the bottom end of the pulverizing box 203a; a rotating gear 203g is disposed at the end of the driven rod 203c, a control tooth 201k meshes with the rotating gear 203g, a limiting groove 203h is opened on the side of the control tooth 201k, and a positioning guide block 203i is disposed on the limiting groove 203h.

[0054] In one embodiment, a feeding box 203j is provided below the crushing box 203a, a feeding pipe 203e is provided at the bottom end of the feeding box 203j, a lifting frame 203k is also provided at the bottom end of the feeding box 203j, and a blocking block 203l is provided at the end of the lifting frame 203k; the blocking block 203l is adapted to the feeding pipe 203e.

[0055] In one embodiment, the quantitative crushing component 203 is the core part of the present invention. It is responsible for crushing the material and meeting different process requirements by precisely controlling the feeding amount. This component consists of a crushing box 203a, a support rod 203b, a driven rod 203c, and a crushing blade 203d, which together realize the crushing process of the material. The crushing box 203a is built into the processing box 105, where the material is crushed by the crushing blade 203d. The design of the feeding pipe 203e at the end of the crushing box 203a and the sieve hole 203f at the bottom end allows the crushed material to pass smoothly through the sieve hole 203f and fall into the feeding box 203j, completing the separation and feeding process of the material.

[0056] The rotating gear 203g on the driven rod 203c meshes with the control gear 201k. The limiting groove 203h and the positioning guide block 203i on the side of the control gear 201k work together to ensure the precise rotation of the driven rod 203c and the synchronous movement of the crushing blade 203d, improving crushing efficiency and uniformity. The feeding box 203j below the crushing box 203a and the feeding pipe 203e at the bottom, together with the lifting frame 203k and the sealing block 203l, achieve precise control of the feeding amount. The lifting frame 203k can be raised and lowered as needed. The sealing block 203l is adapted to the feeding pipe 203e. By adjusting the position of the sealing block 203l, the feeding speed and feeding time are controlled, achieving precise control of the feeding amount. This setting not only improves the flexibility and accuracy of material handling, but also avoids material waste and the need for subsequent stacking in traditional conveying devices, significantly improving production efficiency and operational convenience.

[0057] The rest of the structure is the same as in Example 2.

[0058] Operation process: Coal enters the inner side of the crushing box 203a along the feed pipe. The servo motor 201a drives the main power rod 201b to rotate. The main power rod 201b, in conjunction with the synchronous slider 201f, drives the connecting sleeve 201g to rotate. The connecting sleeve 201g drives the cam 201h to rotate. This, along with the spring set between the support frame 104 and the connecting slider 201d (as shown in Figure 5), enables the processing box 105 to move left and right.

[0059] The main power rod 201b, in conjunction with the second pulley and the second belt, drives the transmission rod 202a to rotate. The transmission rod 202a drives the turntable 202b to rotate synchronously. The turntable 202b, in conjunction with the rotating rod and the push-pull rod 202c, drives the movable slider 202f to reciprocate along the connecting groove 202e. The movable slider 202f, in conjunction with the guide rod 202d, drives the support frame 104 and the guide block 104a to reciprocate up and down along the guide groove, as shown in Figure 9. This achieves the up and down movement of the processing box 105, ensuring that the coal is evenly distributed inside the equipment. The control box 201e moves along with the processing box... When 105 moves laterally, the piston remains stationary relative to the support frame 104. The pressure regulating pipe 201i moves together with the control box 201e, allowing the piston to move inside the pressure regulating pipe 201i. As the piston moves, air located inside the control box 201e enters the control guide 201j, allowing the piston ring 201l to move inside the control guide 201j, as shown in Figure 7. The piston ring 201l drives the control tooth 201k to move along the direction of the limiting slide groove 203h. The control tooth 201k, in conjunction with the rotating gear 203g, enables the driven rod 203c to move. The driven rod 203c, in conjunction with the first pulley and the first belt, enables the synchronous rotation of the two support rods 203b. The crushing blade 203d, located on the outside of the support rod 203b, crushes the coal located inside the crushing box 203a. The crushed coal falls into the inner side of the feeding box 203j after being screened through the screen hole 203f. The electric telescopic rod, in conjunction with the lifting frame 203k, enables the lifting and lowering of the sealing block 203l. By adjusting the distance between the sealing block 203l and the feeding pipe 203e (as shown in Figure 10), the feeding speed and feeding time can be controlled, achieving precise control of the feeding amount. With precise control, the coal screened through the sieve 203f falls into the inner side of the feeding box 203j. The vibration of the processing box 105 ensures the coal is evenly distributed within the feeding box 203j. The coal is then discharged from the feeding pipe 203e, achieving uniform feeding. When feeding is no longer needed, the electric telescopic rod drives the lifting frame 203k upwards. The lifting frame 203k then moves the sealing block 203l upwards, sealing the feeding pipe 203e and stopping the feeding. This achieves precise control of the feeding amount, eliminating the need for separate stockpiling and greatly improving production efficiency.

[0060] The constructions and arrangements of this application illustrated in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described herein. For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of the invention. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structurally equivalent but also equivalent in structure. Other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments without departing from the scope of the invention. Therefore, the present invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0061] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the currently considered best mode for carrying out the invention, or those features that are not relevant to implementing the invention) may be omitted.

[0062] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0063] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A material conveying and pulverizing apparatus, characterized by: include, The main structure (100) includes a support base (101), a fixing frame (102) disposed on the support base (101), a conveyor belt (103) disposed on the fixing frame (102), a support frame (104) disposed on the support base (101), and a processing box (105) disposed on the support base (101); The feeding mechanism (200) is set on the main body (100) and includes an active component (201) set on the support base (101), a transmission component (202) cooperating with the active component (201), and a quantitative crushing component (203) set on the processing box (105). When the material enters the processing box (105), the active component (201) drives the transmission component (202) to move the material and feed the material into the quantitative crushing component (203) for crushing.

2. The material conveying and pulverizing apparatus as claimed in claim 1, wherein: The active component (201) includes a servo motor (201a), a main power rod (201b) disposed on the servo motor (201a), a positioning slide rod (201c) disposed on the machining box (105), a connecting slider (201d) disposed on the positioning slide rod (201c), and a transmission control box (201e) disposed on the machining box (105).

3. The material conveying and pulverizing apparatus as claimed in claim 2, wherein: The outer wall of the main energy rod (201b) is provided with a synchronous slider (201f), the outer wall of the synchronous slider (201f) is provided with a connecting sleeve (201g), and the outer wall of the connecting sleeve (201g) is provided with a cam (201h).

4. The material conveying and pulverizing apparatus as claimed in claim 3, wherein: The transmission component (202) includes a transmission rod (202a) disposed on the support frame (104), a turntable (202b) disposed at the end of the transmission rod (202a), and a push-pull rod (202c) disposed at the end of the turntable (202b).

5. The material conveying and pulverizing apparatus as claimed in claim 4, wherein: The driven component also includes a guide rod (202d) disposed on the support frame (104), a connecting groove (202e) disposed on the support base (101), and a movable slider (202f) disposed in the connecting groove (202e).

6. The material conveying and pulverizing apparatus as claimed in claim 5, wherein: The end of the main power rod (201b) is connected to the outer wall of the transmission rod (202a) via a transmission belt.

7. A material conveying and pulverizing apparatus as claimed in claim 6, wherein: The support base (101) has a guide groove on its side wall, and the support frame (104) is provided with a guide block (104a). The guide block (104a) is inserted into the guide groove and can move up and down along the guide groove.

8. The material conveying and pulverizing apparatus as claimed in claim 7, wherein: The transmission control box (201e) is provided with a pressure regulating pipe (201i), the transmission control box (201e) is provided with a transmission control conduit (201j), and the transmission control conduit (201j) is provided with a control tooth (201k) and a piston ring (201l).

9. The material conveying and pulverizing apparatus as claimed in claim 8, wherein: The quantitative crushing component (203) comprises a crushing box (203a) arranged in the processing box (105), a supporting rod (203b) arranged in the crushing box (203a), a driven rod (203c) arranged on the crushing box (203a) and a crushing cutter (203d) arranged on the supporting rod (203b); The crushing box (203a) is further connected with a discharging pipe (203e), and the bottom end of the crushing box (203a) is provided with a sieve hole (203f); The end of the driven rod (203c) is provided with a rotating gear (203g), the control tooth (201k) is engaged with the rotating gear (203g), the side surface of the control tooth (201k) is provided with a limiting sliding groove (203h), and the limiting sliding groove (203h) is provided with a positioning guide block (203i).

10. The material conveying and pulverizing apparatus as claimed in claim 9, wherein: The crushing box (203a) is provided below with a discharging box (203j), the bottom end of the discharging box (203j) is provided with a discharging pipe (203e), the bottom end of the discharging box (203j) is further provided with a lifting frame (203k), and the end of the lifting frame (203k) is provided with a blocking block (203l); The blocking block (203l) is matched with the discharging pipe (203e).

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