Material conveying device

Abstract

The invention discloses the technical field of coal conveying and smashing, and particularly relates to a material conveying device which comprises a main body mechanism which comprises a supporting base, a fixing frame arranged on the supporting base, a conveying belt arranged on the fixing frame, a supporting frame arranged on the supporting base and a processing box arranged on the supporting base. The discharging mechanism is arranged on the main body mechanism and comprises a driving component arranged on the supporting base, a transmission component matched with the driving component and a quantitative crushing component arranged on the processing box, materials enter the processing box, the driving component is started to drive the transmission component to move the materials, and the quantitative crushing component is arranged on the processing box. Materials are conveyed into the quantitative crushing component to be crushed, the driving component on the supporting base drives the transmission component to move the materials, the materials are conveyed into the quantitative crushing component in the processing box to be crushed, and uniform conveying and accurate control of the materials are achieved.

Description

Technical Field

[0001] The invention relates to the technical field of coal conveying and crushing, and in particular to a material conveying device. Background Art

[0002] Existing material conveying devices generally adopt a simple conveying method, that is, directly piling coal on the conveyor belt for conveying. Although this method is relatively straightforward in operation, the problems it brings cannot be ignored. First, the direct accumulation of coal puts a lot of pressure on the conveyor belt. Long-term exposure to this pressure will cause the conveyor belt to wear faster, thereby shortening its service life. This means higher replacement frequency and maintenance costs for enterprises, and also increases the risk of production interruption due to equipment failure.

[0003] One of the more prominent problems is that due to the inability to accurately control the amount of coal used in a single batch, the existing conveying device often needs to perform additional stacking after delivering the coal to the destination. This process is not only cumbersome, time-consuming and labor-intensive, but also extremely inefficient, which seriously affects the overall work efficiency. In a high-efficiency, fast-paced production environment, this inefficient processing method has become a bottleneck restricting the improvement of production efficiency. Summary of the invention

[0004] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0005] In view of the problem that the single usage amount of the existing coal material needs to be controlled and the delivery amount cannot be controlled by direct delivery, the present invention is proposed.

[0006] Therefore, an object of the present invention is to provide a material conveying device.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: a main body mechanism, including a supporting base, a fixing frame arranged on the supporting base, a conveyor belt arranged on the fixing frame, a supporting frame arranged on the supporting base and a processing box arranged on the supporting base; a unloading mechanism, arranged on the main body mechanism, including an active component arranged on the supporting base, a transmission component matched with the active component and a quantitative crushing component arranged on the processing box, the material enters the processing box, and the active component is started to drive the transmission component to move the material, and the material is sent to the quantitative crushing component for crushing.

[0008] As a preferred solution of the material conveying device described in the present invention, the active components include a servo motor, a main energy rod arranged on the servo motor, a positioning slide rod arranged on the processing box, a connecting slide rod arranged on the positioning slide rod, and a control box arranged on the processing box.

[0009] As a preferred solution of the material conveying device of the present invention, the outer wall of the main energy rod is provided with a synchronous slider, the outer wall of the synchronous slider is provided with a connecting sleeve, and the outer wall of the connecting sleeve is provided with a cam.

[0010] As a preferred solution of the material conveying device of the present invention, the transmission assembly includes a transmission rod arranged on the support frame, a turntable arranged at the end of the transmission rod, and a push-pull rod arranged at the end of the turntable.

[0011] As a preferred solution of the material conveying device described in the present invention, the transmission assembly further includes a force guide rod arranged on the support frame, a connecting slide groove arranged on the support base, and a movable slider arranged in the connecting slide groove.

[0012] As a preferred solution of the material conveying device of the present invention, the end of the main energy rod is connected to the outer wall of the transmission rod through a transmission belt.

[0013] As a preferred solution of the material conveying device described in the present invention, wherein: a guide groove is opened on the side wall of the support base, a guide block is arranged on the support frame, the guide block is inserted into the guide groove, and the guide block can move up and down along the guide groove.

[0014] As a preferred solution of the material conveying device described in the present invention, wherein: a pressure regulating pipe is arranged on the transmission and control box, a transmission and control guide tube is arranged on the transmission and control box, and control teeth and a piston ring are arranged on the transmission and control guide tube.

[0015] As a preferred solution of the material conveying device described in the present invention, wherein: the quantitative crushing component includes a crushing box arranged in the processing box, a support rod arranged in the crushing box, a driven rod arranged on the crushing box and a crushing knife arranged on the support rod; the end of the crushing box is also connected to a feeding pipe, and the bottom end of the crushing box is provided with a sieve hole; the end of the driven rod is provided with a rotating gear, the control tooth is meshed with the rotating gear, the side surface of the control tooth is provided with a limiting slide groove, and the limiting slide groove is provided with a positioning guide block.

[0016] As a preferred solution of the material conveying device described in the present invention, a discharge box is arranged below the crushing box, a discharge pipe is arranged at the bottom of the discharge box, a lifting frame is also arranged at the bottom of the discharge box, and a blocking block is arranged at the end of the lifting frame; the blocking block is adapted to the discharge pipe.

[0017] The beneficial effects of the present invention are as follows: the active component on the support base drives the transmission component to move the material, and the material is sent to the quantitative crushing component in the processing box for crushing, thereby achieving uniform conveying and precise control of the material;

[0018] Compared with the prior art, the present invention effectively prolongs the service life of the conveyor belt, reduces the maintenance cost increased due to uneven wear of the equipment, improves work efficiency, and avoids cumbersome pile separation processing steps. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0020] Figure 1 It is a schematic diagram of the overall structure of the material conveying device of the present invention.

[0021] Figure 2 It is a partial structural cross-sectional view of the material conveying device of the present invention.

[0022] Figure 3 It is a schematic cross-sectional view of a crushing box of the material conveying device of the present invention.

[0023] Figure 4 It is a schematic diagram of the internal structure of the support base of the material conveying device of the present invention.

[0024] Figure 5 It is an enlarged schematic diagram of the main energy rod of the material conveying device of the present invention.

[0025] Figure 6 It is a schematic diagram of the internal structure of the processing box of the material conveying device of the present invention.

[0026] Figure 7 It is a schematic diagram of the structure of the control box part of the material conveying device of the present invention.

[0027] Figure 8 It is an enlarged schematic diagram of the transmission rod structure of the material conveying device of the present invention.

[0028] Fig. 9 It is a schematic diagram of the structure of the support frame part of the material conveying device of the present invention.

[0029] Fig.10 It is a schematic diagram of the internal structure of the material box of the material conveying device of the present invention.

[0030] In the figure: 100, main body; 101, support base; 102, fixed frame; 103, conveyor belt; 104, support frame; 104a, guide block; 105, processing box; 200, unloading mechanism; 201, active component; 201a, servo motor; 201b, main energy rod; 201c, positioning slide bar; 201d, connecting slide block; 201e, transmission and control box; 201f, synchronous slide block; 201g, connecting sleeve; 201h, cam; 201i, pressure regulating tube; 201j, transmission and control guide tube; 201k, control gear; 201l , piston ring; 202, transmission parts; 202a, transmission rod; 202b, turntable; 202c, push-pull rod; 202d, guide rod; 202e, connecting slide; 202f, movable slider; 203, quantitative crushing parts; 203a, crushing box; 203b, support rod; 203c, driven rod; 203d, crushing knife; 203e, feeding pipe; 203f, sieve hole; 203g, rotating gear; 203h, limiting slide; 203i, positioning guide block; 203j, feeding box; 203k, lifting frame; 203l, blocking block. DETAILED DESCRIPTION

[0031] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0032] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present 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 term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0034] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0035] Example 1, reference Figures 1 to 10 , which is the first embodiment of the present invention, provides a material conveying device, including a main mechanism 100, including 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 box 105 arranged on the support base 101; a material discharge mechanism 200, which is arranged on the main mechanism 100, includes an active component 201 arranged on the support base 101, a transmission component 202 matched with the active component 201 and a quantitative crushing component 203 arranged on the processing box 105, and the material enters the processing box 105, and the active component 201 is started to drive the transmission component 202 to move the material, and the material is sent to the quantitative crushing component 203 for crushing.

[0036] Specifically, the active component 201 includes a servo motor 201a, a main power rod 201b arranged on the servo motor 201a, a positioning slide bar 201c arranged on the processing box 105, a connecting slide bar 201d arranged on the positioning slide bar 201c, and a control box 201e arranged on the processing box 105.

[0037] It should be noted that the servo motor 201a serves as the main power source, providing precise power output to control the entire material conveying process. The function of the main energy rod 201b is to convert the rotational motion of the motor into linear motion, thereby driving other components. The positioning slide bar 201c and the connecting slide bar 201d are set so that the movement of the main energy rod 201b can be accurately transmitted to the inside of the processing box 105, thereby realizing accurate positioning and control of the material.

[0038] 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 the material in the processing box 105.

[0039] Furthermore, a synchronous slider 201f is provided on the outer wall of the main energy 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 energy rod 201b is connected to the outer wall of the transmission rod 202a through a transmission belt.

[0040] It should be noted that the cooperation between the synchronous slider 201f and the connecting sleeve 201g, as well as the cooperation between the connecting sleeve 201g and the cam 201h, enables the movement of the main energy 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.

[0041] The end of the main energy rod 201b is connected to the outer wall of the transmission rod 202a through a transmission belt, which makes power transmission more stable, reduces energy loss, improves energy conversion efficiency, and also helps to reduce noise and vibration, extending the service life of the device.

[0042] Example 2, reference Figures 1 to 7 This embodiment is different from the first embodiment in that the transmission assembly 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.

[0043] Specifically, the transmission assembly 202 further includes a force-guiding rod 202d disposed on the support frame 104, a connecting slide groove 202e disposed on the support base 101, and a movable slider 202f disposed in the connecting slide groove 202e.

[0044] Furthermore, a guide groove is formed on the side wall of the support base 101 , and a guide block 104 a is provided on the support frame 104 . The guide block 104 a is inserted into the guide groove, and the guide block 104 a can move up and down along the guide groove.

[0045] Furthermore, a pressure regulating tube 201i is provided on the transmission and control box 201e, a transmission and control guide tube 201j is provided on the transmission and control box 201e, and a control tooth 201k and a piston ring 201l are provided on the transmission and control guide tube 201j.

[0046] It should be noted that the transmission rod 202a is responsible for transmitting the power of the servo motor 201a to the turntable 202b, and the turntable 202b then realizes the push-pull action of the material through the push-pull rod 202c, so that the material can be effectively transported and positioned in the processing box 105. The setting of the force guide rod 202d, the connecting chute 202e and the movable slider 202f further enhances the accuracy and stability of this power transmission. The force guide rod 202d ensures the linear movement of the push-pull rod 202c when transporting materials, while the connecting chute 202e and the movable slider 202f allow the push-pull rod 202c to slide smoothly on the support base 101, reducing friction and wear.

[0047] 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, so that the guide block 104a can move up and down along the guide groove, which provides precise control in the vertical direction for the material conveying device and ensures the stability and uniformity of the material during the conveying process.

[0048] The pressure regulating pipe 201i and the control tube 201j on the control box 201e, as well as the control teeth 201k and the piston ring 201l on the control tube 201j, constitute a complex hydraulic control system. This system adjusts and controls the power transmission and movement of the entire material conveying device by controlling the movement of the piston ring 201l in the control tube 201j. The pressure regulating pipe 201i allows the pressure of the hydraulic system to be adjusted to adapt to different material characteristics and conveying requirements. The control teeth 201k mesh with the rotating gear 203g to realize the rotation of the driven rod 203c, thereby driving the crushing knife 203d to perform crushing. This arrangement is conducive to accurately controlling the crushing force and speed, and improving the crushing efficiency and uniformity.

[0049] The rest of the structure is the same as that of Example 1.

[0050] Example 3, reference Figures 3 to 10 , this embodiment is different from the above embodiments in that: the quantitative crushing component 203 includes a crushing box 203a arranged in the processing box 105, a support rod 203b arranged in the crushing box 203a, a driven rod 203c arranged on the crushing box 203a and a crushing knife 203d arranged on the support rod 203b; the end of the crushing box 203a is also connected to a feeding pipe 203e, and a sieve hole 203f is provided at the bottom of the crushing box 203a; a rotating gear 203g is provided at the end of the driven rod 203c, and the control tooth 201k is meshed with the rotating gear 203g, and a limiting slide groove 203h is provided on the side of the control tooth 201k, and a positioning guide block 203i is provided on the limiting slide groove 203h.

[0051] Specifically, a discharge box 203j is arranged below the crushing box 203a, a discharge pipe 203e is arranged at the bottom of the discharge box 203j, a lifting frame 203k is also arranged at the bottom of the discharge box 203j, and a blocking block 203l is arranged at the end of the lifting frame 203k; the blocking block 203l is adapted to the discharge pipe 203e.

[0052] It should be noted that the quantitative crushing component 203 is the core part of the present invention, which is responsible for crushing the material and meeting different process requirements by accurately controlling the amount of material discharged. The component is composed of a crushing box 203a, a support rod 203b, a driven rod 203c and a crushing knife 203d, which together realize the crushing process of the material; the crushing box 203a is built into the processing box 105, and the material is chopped by the crushing knife 203d. The discharge pipe 203e at the end of the crushing box 203a and the sieve hole 203f at the bottom are designed so that the crushed material can be smoothly screened through the sieve hole 203f and fall into the discharge box 203j, completing the material separation and discharge process.

[0053] The rotating gear 203g on the driven rod 203c meshes with the control tooth 201k, and the limiting slide groove 203h and the positioning guide block 203i on the side of the control tooth 201k work together to ensure the precise rotation of the driven rod 203c and the synchronous movement of the crushing knife 203d, thereby improving the crushing efficiency and uniformity. The discharge box 203j below the crushing box 203a and the discharge pipe 203e at the bottom, in conjunction with the lifting frame 203k and the blocking block 203l, achieve precise control of the discharge amount. The lifting frame 203k can be raised and lowered as needed, and the blocking block 203l is adapted to the discharge pipe 203e. The discharge speed and discharge time can be controlled by adjusting the position of the blocking block 203l, thereby achieving precise control of the discharge amount. This arrangement not only improves the flexibility and accuracy of material handling, but also avoids the waste of materials in traditional conveying devices and the need for subsequent stacking processing, thereby significantly improving production efficiency and operational convenience.

[0054] The rest of the structure is the same as that of Example 2.

[0055] Operation process: coal enters the inner side of the crushing box 203a along the feed pipe, the servo motor 201a drives the main energy rod 201b to rotate, the main energy rod 201b cooperates with the synchronous slider 201f to drive the connecting sleeve 201g to rotate, the connecting sleeve 201g drives the cam 201h to rotate, and the spring set between the support frame 104 and the connecting slider 201d is as shown in FIG. Figure 5 , realize the left and right movement of the processing box 105,

[0056] The main energy rod 201b cooperates with the second pulley and the second belt to drive the transmission rod 202a to rotate, and the transmission rod 202a drives the turntable 202b to rotate synchronously. The turntable 202b cooperates with the rotating rod and the push-pull rod 202c to drive the movable slider 202f to reciprocate along the connecting slide groove 202e, and the movable slider 202f cooperates with the guide rod 202d to drive the support frame 104 and the guide block 104a to reciprocate up and down along the guide groove. Fig. 9 , thereby realizing the up and down movement of the processing box 105, so that the coal is evenly distributed inside the equipment. When the control box 201e moves horizontally with the processing box 105, the piston remains stationary relative to the support frame 104, and the pressure regulating tube 201i moves together with the control box 201e to realize the movement of the piston inside the pressure regulating tube 201i. With the movement of the piston, the air inside the control box 201e enters the inside of the control guide tube 201j, realizing the movement of the piston ring 201l inside the control guide tube 201j. Figure 7The piston ring 2011 drives the control tooth 201k to move along the direction of the limiting slide groove 203h, and the control tooth 201k cooperates with the rotating gear 203g to realize the rotation of the driven rod 203c. The driven rod 203c cooperates with the first pulley and the first belt to realize the synchronous rotation of the support rods 203b on both sides. The crushing knife 203d arranged on the outside of the support rod 203b crushes the coal located on the inner side of the crushing box 203a, and the crushed coal falls into the inner side of the discharge box 203j after being screened by the sieve hole 203f. The electric telescopic rod cooperates with the lifting frame 203k to realize the lifting of the blocking block 203l. By adjusting the distance between the blocking block 203l and the discharge pipe 203e as shown in FIG. Fig.10 , can control the material unloading speed and material unloading time, realize accurate control of material unloading amount, the coal screened by the sieve hole 203f falls into the inner side of the material unloading box 203j, and the vibration of the processing box 105 is utilized to make the coal evenly distributed inside the material unloading box 203j, and the coal is discharged from the material unloading pipe 203e, realizing uniform and effective material unloading. When no material unloading is needed, the electric telescopic rod drives the lifting frame 203k to move upward, and the lifting frame 203k drives the blocking block 203l to move upward, and the blocking block 203l completes the blocking of the material unloading pipe 203e, and then stops unloading, realizing accurate control of material unloading amount, and no separate stacking work is required, which greatly improves production efficiency.

[0057] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), installation arrangement, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present invention. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure of performing the function described herein, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other replacements, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the invention is not limited to a specific embodiment, but extends to numerous modifications still falling within the scope of the appended claims.

[0058] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0059] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0060] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A material conveying device, characterized in that: include, A main body mechanism (100) comprises a support base (101), a fixing frame (102) arranged on the support base (101), a conveyor belt (103) arranged on the fixing frame (102), a support frame (104) arranged on the support base (101), and a processing box (105) arranged on the support base (101); The material discharge mechanism (200) is arranged on the main mechanism (100), and comprises an active component (201) arranged on the support base (101), a transmission component (202) matched with the active component (201), and a quantitative crushing component (203) arranged on the processing box (105); when the material enters the processing box (105), the active component (201) is started to drive the transmission component (202) to move the material, and the material is sent to the quantitative crushing component (203) for crushing.

2. The material conveying device according to claim 1, characterized in that: The active component (201) includes a servo motor (201a), a main energy rod (201b) arranged on the servo motor (201a), a positioning slide bar (201c) arranged on the processing box (105), a connecting slide bar (201d) arranged on the positioning slide bar (201c), and a control box (201e) arranged on the processing box (105).

3. The material conveying device according to claim 2, characterized in that: 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 device according to claim 3, characterized in that: The transmission component (202) comprises a transmission rod (202a) arranged on the support frame (104), a rotating disk (202b) arranged at the end of the transmission rod (202a), and a push-pull rod (202c) arranged at the end of the rotating disk (202b).

5. The material conveying device according to claim 4, characterized in that: The transmission component (202) also includes a force-guiding rod (202d) arranged on the support frame (104), a connecting slide groove (202e) arranged on the support base (101), and a movable slider (202f) arranged in the connecting slide groove (202e).

6. The material conveying device according to claim 5, characterized in that: The end of the main energy rod (201b) is connected to the outer wall of the transmission rod (202a) via a transmission belt.

7. The material conveying device according to claim 6, characterized in that: 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 the guide block (104a) can move up and down along the guide groove.

8. The material conveying device according to claim 7, characterized in that: The control box (201e) is provided with a pressure regulating tube (201i), the control box (201e) is provided with a control guide tube (201j), and the control guide tube (201j) is provided with control teeth (201k) and a piston ring (201l).

9. The material conveying device according to claim 8, characterized in that: The quantitative crushing component (203) comprises a crushing box (203a) arranged in the processing box (105), a support rod (203b) arranged in the crushing box (203a), a driven rod (203c) arranged on the crushing box (203a), and a crushing knife (203d) arranged on the support rod (203b); The end of the crushing box (203a) is also connected to a feeding pipe (203e), and the bottom of the crushing box (203a) is provided with a sieve hole (203f); A rotating gear (203g) is provided at the end of the driven rod (203c), the control tooth (201k) is meshed with the rotating gear (203g), a limiting sliding groove (203h) is provided on the side of the control tooth (201k), and a positioning guide block (203i) is provided on the limiting sliding groove (203h).

10. The material conveying device according to claim 9, characterized in that: A material discharge box (203j) is arranged below the crushing box (203a), a material discharge pipe (203e) is arranged at the bottom of the material discharge box (203j), a lifting frame (203k) is also arranged at the bottom of the material discharge box (203j), and a blocking block (203l) is arranged at the end of the lifting frame (203k); The blocking block (2031) is compatible with the feed pipe (203e).

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