Automatic material distributing and discharging device and method

Abstract

The application relates to an automatic material distributing and discharging device and method, wherein the automatic material distributing and discharging device comprises a front end conveying shelf, an intermediate processing shelf and a feeding conveying shelf which are sequentially connected; the intermediate processing shelf is connected with a lifting mechanism, in the lifting state, the upper surface of the intermediate processing shelf is higher than the upper surface of the feeding conveying shelf, and the upper surface of the intermediate processing shelf and the upper surface of the front end conveying shelf form an obtuse angle with the opening facing upward. The scheme is ingenious, the obtuse angle structure is formed through the front end conveying shelf and the intermediate processing shelf, and the front end conveying shelf is reversely conveyed, so that the material stacking process is quickly and effectively divided into two parts, the intermediate processing shelf is lowered, the discharging and conveying process can be carried out, manual material moving is not needed in the whole process, manpower is saved, the working efficiency is high, and safety and reliability are achieved.

Description

Technical Field

[0001] This invention belongs to the technical field of material processing and transportation equipment, and specifically relates to an automatic material sorting and unloading device and method. Background Technology

[0002] For example, in an aluminum profile scrap recycling workshop, long aluminum profiles need to be cut into several sections using a shearing machine for subsequent pressing and recycling. Before shearing, the aluminum profile scrap is piled up on a shelf next to the shearing machine's feed rack. Currently, workers need to use long hooks and other tools to hook the profiles, separating a portion from the large pile and moving it to the feed rack, where it is then fed into the shearing machine. This process is called sorting and unloading. This current method requires manual hooking, which is time-consuming and labor-intensive. Furthermore, it's difficult to control the amount of profiles unloaded. If the amount is too large, exceeding the shearing machine's capacity for a single pass, more time needs to be spent moving some profiles back to the shelf. If the amount processed each time is too small, the shearing machine will need to perform more passes for the same total processing volume, leading to a decrease in overall efficiency. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide an automatic material sorting and unloading device and method, which solves the problems of high labor intensity and low efficiency of manual operation, realizes the automatic separation of a part of the material from the shelf and transports it to the feeding rack, improves processing efficiency and reduces safety risks.

[0004] According to the technical solution of the present invention, the present invention provides an automatic material sorting and unloading device, including a front-end conveying shed, an intermediate processing shed and a feeding conveying shed connected in sequence; the intermediate processing shed is connected to a lifting mechanism, and in the raised state, the upper surface of the intermediate processing shed is higher than the upper surface of the feeding conveying shed, and the upper surface of the intermediate processing shed and the upper surface of the front-end conveying shed form an obtuse angle with the opening facing upward.

[0005] Preferably, the end of the intermediate processing shed furthest from the front conveying shed is the lifting end, and the other end of the intermediate processing shed is the rotating shaft end; the intermediate processing shed includes a support, and the support is rotatably connected to the rotating shaft end through the shed's rotating shaft.

[0006] Furthermore, the intermediate processing shed also includes an intermediate track frame, with sprockets rotatably connected to both ends of the intermediate track frame and a chain drivingly connected between the sprockets at both ends. The sprocket at one end of the intermediate track frame is drivingly connected to the intermediate shed motor; the rotating shaft end of the intermediate track frame is rotatably connected to the support through the shed rotating shaft.

[0007] Furthermore, the lifting mechanism includes a lifting shaft, which is rotatably connected to a support. A drive arm is fixedly connected to the lifting shaft, and the drive arm is rotatably connected to one end of a telescopic cylinder. The other end of the telescopic cylinder is connected to the ground or the support through a telescopic cylinder hinge seat. A lifting arm is also fixedly connected to the lifting shaft, and a lifting connecting rod is rotatably connected to the lifting arm. The other end of the lifting connecting rod is rotatably connected to an intermediate track frame.

[0008] Furthermore, the feeding conveyor shed or intermediate processing shed is equipped with a blocking element on the side away from the front conveyor shed.

[0009] Furthermore, the upper surface of the front conveyor rack is an inclined plane with the input side higher than the output side; when the intermediate processing rack is raised, the upper surface of the intermediate processing rack is an inclined plane with the output side higher than the input side, and the vertex of the obtuse angle formed by the upper surface of the intermediate processing rack and the upper surface of the front conveyor rack is located above the upper surface of the feed conveyor rack.

[0010] According to some embodiments, the output end of the feeding conveyor is provided with a shearing machine for cutting long strip materials. The length direction of the long strip materials is the same as the conveying direction of the feeding conveyor, and the length direction of the long strip materials is perpendicular to the conveying direction of the front conveyor and the intermediate processing conveyor. The position of the output end of the front conveyor corresponds to the edge of the inlet of the shearing machine.

[0011] Furthermore, the feeding conveyor rack includes several roller conveyor racks, with gaps between adjacent roller conveyor racks for accommodating the intermediate processing rack and the front conveyor rack; the upper surface of the front conveyor rack is higher than the upper surface of the feeding conveyor rack; the upper surface of the front conveyor rack is higher than the rotating shaft end of the intermediate processing rack; in the lowered state of the intermediate processing rack, the upper surface of the feeding conveyor rack is higher than the upper surface of the intermediate processing rack.

[0012] According to the technical solution of the present invention, the present invention also provides an automatic material sorting and unloading method, which is implemented using the automatic material sorting and unloading device of the present invention, and includes the following steps:

[0013] Step S1: Place several materials to be conveyed on the front conveyor rack, start the front conveyor rack forward conveying, and convey all the materials towards the middle processing rack.

[0014] Step S2: Keep or adjust the intermediate processing shed to the raised state, start the intermediate processing shed conveyor, and convey the material in contact with the intermediate processing shed towards the feeding conveyor shed.

[0015] Step S3: The front conveyor shed reverses the conveyor, conveying the material in contact with the front conveyor shed in a direction away from the feeding conveyor shed and the intermediate processing shed.

[0016] Step S4: The intermediate processing shed is lowered, and all the materials on the intermediate processing shed fall onto the feeding conveyor shed. The feeding conveyor shed is then started for conveying.

[0017] Preferably, the feeding conveyor shed or intermediate processing shed is provided with a blocking element on the side away from the front conveyor shed;

[0018] In step S2, there is a working state where the front conveying shed continues to transport in the forward direction and the intermediate processing shed and the front conveying shed are transported simultaneously and in the same direction, thus forming a state in which the material as a whole is blocked by the blocking component and cannot continue to move in the conveying direction.

[0019] In step S3, the intermediate processing shed and the front conveying shed are simultaneously and in reverse, keeping as much material as possible blocked by the blocking components; the material transported in reverse by the front conveying shed in this step is excess material exceeding the single feeding quantity; then, both the intermediate processing shed and the front conveying shed stop conveying.

[0020] Compared with the prior art, the beneficial technical effects of the present invention are as follows:

[0021] 1. The automatic material sorting and unloading device and method of the present invention realizes the automation of the material sorting and unloading process, eliminating the need for manual material movement, saving manpower, achieving high material sorting efficiency, and being safe and reliable.

[0022] 2. The automatic material sorting and unloading device and method of the present invention are ingeniously and simply designed. By forming an obtuse angle structure between the front conveying shed and the intermediate processing shed, and by reverse conveying of the front conveying shed, the material sorting process of dividing the stacked material into two parts is realized quickly and effectively, and the material unloading and conveying process can be carried out by lowering the intermediate processing shed.

[0023] 3. The automatic material feeding device and method of the present invention can match the processing capacity of the processing equipment, automatically obtain the appropriate amount and feed the material; due to the obtuse angle structure formed by the front conveying shed and the intermediate processing shed, the material on one side of the front conveying shed can be conveyed to the intermediate processing shed as much as possible, while if the material piled on one side of the intermediate processing shed is not placed stably, it will roll down and be conveyed away by the front conveying shed in the opposite direction, thus ensuring the feeding amount and improving the processing efficiency; at the same time, it ensures that the material is placed stably and will not fall accidentally and injure people; it is especially suitable for aluminum profile shearing machines. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the front view structure of an embodiment of the present invention.

[0025] Figure 2 yes Figure 1 The illustrated embodiment is a structural schematic diagram in a material distribution working state.

[0026] Figure 3 yes Figure 2 A schematic diagram of the structure after material distribution, with the intermediate processing shed in a lowered state.

[0027] Figure 4 yes Figure 1 The above-view structural diagram of the embodiment is shown.

[0028] Figure 5 yes Figure 1 A three-dimensional structural diagram of the intermediate processing shed in the illustrated embodiment.

[0029] Figure 6 yes Figure 5 The diagram shows the main structural view of the intermediate processing shed.

[0030] Figure 7 yes Figure 5 The diagram shows a top view of the intermediate processing shed.

[0031] Explanation of reference numerals in the attached figures:

[0032] 1. Front-end conveyor frame; 101. Front-end track frame; 102. Front-end bracket;

[0033] 2. Intermediate processing scaffold; 201. Support; 202. Scaffold pivot; 203. Track frame; 204. Sprocket; 205. Chain; 206. Intermediate scaffold motor; 207. Lifting pivot; 208. Drive arm; 209. Telescopic cylinder; 210. Telescopic cylinder hinge seat; 211. Lifting arm; 212. Lifting connecting rod;

[0034] 3. Feeding conveyor frame; 301. Blocking components;

[0035] 4. Shearing machine. Detailed Implementation

[0036] This invention provides an automatic material sorting and unloading device and method, which solves the problems of high labor intensity and low efficiency of manual operation, realizes the automatic separation of a portion of the material from the shelf and transports it to the feeding rack, improves processing efficiency and reduces safety risks.

[0037] The following description uses the processing of aluminum profiles with a shearing machine as an example. The main inventive concept in this embodiment is to design a rack capable of automatic material sorting and unloading, installed next to the shearing machine's feed rack. This rack separates and unloads clustered aluminum materials, automatically feeding them to the shearing machine and improving material cutting and pressing efficiency. It should be noted that the application, connected processing equipment, and processed materials of this invention are not limited to these limitations and can be easily adjusted based on existing technology for other feasible application scenarios.

[0038] Please see Figures 1 to 3 An automatic material sorting and unloading device according to an embodiment of the present invention includes a front conveying shed 1, an intermediate processing shed 2, and a feeding conveying shed 3 connected sequentially along the unloading direction. The front conveying shed 1 is mainly used for placing materials and transporting them. It can control the conveying direction to be forward (i.e., the unloading direction) or reverse. For example, it is a motor-driven conveying shed, and its forward or reverse conveying can be controlled by the forward and reverse rotation of the motor. The intermediate processing shed 2 cooperates with the front conveying shed 1 (and may also include other components such as a blocking member 301) to realize the material sorting process. The feeding conveying shed 3 is the feeding shed of the processing equipment (such as a shearing machine 4). It is connected to the inlet of the processing equipment and is used to feed materials into the processing equipment. The forward conveying directions of the front conveying shed 1 and the intermediate processing shed 2 are generally the same (a small difference in the horizontal direction that does not affect the conveying connection process is allowed, and a certain difference in the vertical direction is allowed).

[0039] The intermediate processing shed 2 is connected to a lifting mechanism, which is in the raised state (the state of material distribution, for example) Figure 2 As shown), the upper surface of the intermediate processing shed 2 is higher than the upper surface of the feeding conveying shed 3, and the upper surface of the intermediate processing shed 2 and the upper surface of the front conveying shed 1 form an obtuse angle α with the opening facing upward; more specifically, for example, the front conveying shed 1 is horizontal and the intermediate processing shed 2 is inclined; or, the front conveying shed 1 is inclined and the intermediate processing shed 2 is horizontal; or preferably, both the front conveying shed 1 and the intermediate processing shed 2 are inclined in the horizontal direction.

[0040] This solution utilizes an obtuse-angle structure formed by the front-end conveying rack 1 and the intermediate processing rack 2. This allows materials on the front-end conveying rack 1 and / or the intermediate processing rack 2 to easily roll off during operation, ensuring stable placement of materials on both racks. For example, in the aforementioned operating state, the intermediate processing rack 2 performs forward conveying in conjunction with the front-end conveying rack 1's reverse conveying. The amount of material remaining on the intermediate processing rack 2 will be a relatively fixed amount that it (or, together with other components such as the blocking member 301) can accommodate. Excess material will be conveyed away by the front-end conveying rack 1. This achieves an automatic, fast, and efficient process of dividing the stacked materials into two parts. Further adjustments, such as adjusting the relative position of the equipment or the length of the intermediate processing rack 2, can match the separated amount with the single-pass processing capacity of the equipment, solving the problems described in the background section. Finally, lowering the intermediate processing rack 2 allows for unloading, placing the separated material onto the feeding conveying rack 3 for feeding into the processing equipment.

[0041] In a preferred embodiment, the end of the intermediate processing rack 2 furthest from the front conveyor rack 1 is a lifting end, and the other end of the intermediate processing rack 2 is a rotating shaft end. The intermediate processing rack 2 includes a support 201, which is rotatably connected to the rotating shaft end via a rack rotating shaft 202. The lifting mechanism controls the tilting process of the lifting section of the intermediate processing rack 2, thereby controlling the height and angle of the upper surface of the intermediate processing rack 2. It is conceivable that in another embodiment, the angle of the upper surface of the intermediate processing rack 2 is fixed at... Figure 2 As shown in the figure, the height of the intermediate processing shed 2 can be controlled by raising and lowering the entire structure, which can also achieve the above-mentioned technical features and effects of the present invention. However, it is more complex in terms of structure and control than the scheme using a rotating shaft. Other similar structures or methods that can control the raising and lowering of materials on the intermediate processing shed 2 are also possible.

[0042] More specifically, please refer to Figure 4 The front-end conveyor frame 1 is an existing chain-type conveyor frame structure, which has a front-end track frame 101. A chain is driven on the front-end track frame 101. The chain is driven by a motor. Long strip materials such as profiles are placed on the chain of the front-end track frame 101 and are conveyed by moving with the chain under the action of friction. Preferably, according to the approximate length of the long strip material, there are only two front-end track frames 101 near the two ends of the long strip material. For cases where the long strip material is relatively soft or has a large length span, a front-end bracket 102 is also provided between the two front-end track frames 101. The upper surface of the front-end bracket 102 is basically smooth to provide auxiliary support for the moving long strip material.

[0043] Please see Figures 5 to 7 The intermediate processing shed 2 is also a chain conveyor structure, which includes an intermediate track frame 203. Both ends of the intermediate track frame 203 are rotatably connected to sprockets 204, and a chain 205 is driven between the sprockets 204 at both ends. An intermediate shed motor 206 is drivenly connected to one end of the intermediate track frame 203's sprocket 204. The rotating shaft end of the intermediate track frame 203 is rotatably connected to the support 201 via a shed rotating shaft 202. For example, there are two intermediate track frames 203, located at both ends of the long strip material. The intermediate track frames 203 are located between the two front track frames 101, so that the front conveying shed 1 does not affect the lifting and lowering operation of the intermediate processing shed 2.

[0044] The lifting mechanism includes a lifting shaft 207, which is rotatably connected to a support 201 via a hinge (and bearing). A drive arm 208 is fixedly connected to the lifting shaft 207. The drive arm 208 is rotatably connected to one end of a telescopic cylinder 209 (e.g., a pneumatic cylinder, hydraulic cylinder, etc.). The other end of the telescopic cylinder 209 is connected to the ground or the support 201 (e.g., the support 201 is an integral structure covering the entire length of the intermediate processing shed 2) via a telescopic cylinder hinge 210 (and bearing). A lifting arm 211 is also fixedly connected to the lifting shaft 207. For example, the lifting arm 211 is located at both ends of the lifting shaft 207, and the shape and angle of the lifting arm 211 are consistent with those of the drive arm 208 (for ease of design). The lifting arm 211 is rotatably connected to a lifting link 212, the other end of which is rotatably connected to an intermediate track frame 203. For example, the lifting link 212 is in the shape of a fork arm, with the upper fork arm rotatably connected to the side of the intermediate track frame 203, without obstructing the movement of the chain 205. It is conceivable that in some other embodiments, the lifting mechanism could be a cylinder directly connected to the intermediate track frame 203, which pushes the intermediate track frame 203 up when the cylinder push rod extends; however, this requires synchronization of the cylinders on both sides, otherwise the operation will be unstable and prone to damage. Alternatively, other existing lifting mechanisms can be used, as long as they can achieve lifting control. The preferred lifting mechanism shown in the figure has the advantages of simple structure and stable control.

[0045] Please see again Figure 4 The output end of the feeding conveyor shed 3 is equipped with a shearing machine 4 for cutting long strip materials. The length direction of the long strip materials is the same as the conveying direction of the feeding conveyor shed 3, and the length direction of the long strip materials is perpendicular to the conveying direction of the front conveyor shed 1 and the intermediate processing shed 2. The position of the output end of the front conveyor shed 1 corresponds to the edge of the feed inlet of the shearing machine 4. This arrangement ensures that a sufficient amount of separated material can enter the feed inlet of the shearing machine 4.

[0046] The feeding conveyor shed 3 includes, for example, several roller conveyor frames, with gaps between adjacent roller conveyor frames to accommodate the intermediate processing shed 2 and the front conveyor shed 1. This arrangement ensures that the front conveyor shed 1, the intermediate processing shed 2, and the feeding conveyor shed 3 do not collide with each other, guaranteeing stable operation, and the layout is reasonable and compact.

[0047] More specifically, such as Figure 2 , Figure 3 As shown, the upper surface of the front conveyor shed 1 is an inclined plane with the input side higher than the output side. The upper surface of the front conveyor shed 1 is higher than the upper surface of the feeding conveyor shed 3, and the upper surface of the front conveyor shed 1 is higher than the rotating shaft end of the intermediate processing shed 2. The rotating shaft end of the intermediate processing shed 2 is lower than the upper surface of the feeding conveyor shed 3. In the lowered state of the intermediate processing shed 2... Figure 3As shown), the upper surface of the feeding conveyor shed 3 is higher than the upper surface of the intermediate processing shed 2. In the elevated state of the intermediate processing shed 2 (…), Figure 2 As shown, the upper surface of the intermediate processing rack 2 is an inclined plane with the output side higher than the input side. The vertex of the obtuse angle formed by the upper surface of the intermediate processing rack 2 and the upper surface of the front conveying rack 1 is located above the upper surface of the feeding conveying rack 3. Thus, during operation, the obtuse angle α is tilted upwards on both sides. Unstable materials will fall to the lowest point (i.e., the vertex) of the obtuse angle α. At this lowest point, the material will not stop due to contact with the upper surface of the feeding conveying rack 3, which facilitates the final separation of the material into two stable parts. This preferred specific configuration is ingenious, which minimizes the range of motion of the intermediate processing rack 2, making it safer, more stable, easier to control, and allowing for fast switching between lifting and lowering states.

[0048] Preferably, the feeding conveyor shed 3 or the intermediate processing shed 2 is provided with a blocking member 301 on the side away from the front conveyor shed 1. Specifically, for example... Figures 1 to 4 As shown, the blocking member 301 consists of two or more square tubes / rods / plates, fixedly connected to the fixed support portion of the feeding conveying shed 3, thus not affecting the conveying function of the feeding conveying shed 3, and blocking the material and preventing it from moving and falling further when the intermediate processing shed 2 is raised or lowered. It is conceivable that in another embodiment, the blocking member 301 is fixedly installed on the intermediate track frame 203 of the intermediate processing shed 2 in a similar manner, thus blocking the material only when it is raised. When the intermediate processing shed 2 is lowered, it needs to be lowered further so that the blocking member 301 is lower than the feeding conveying shed 3 and does not affect subsequent conveying. In other embodiments, the blocking element 301 may not be provided. After a portion of the material moves to the intermediate processing shed 2, the forward transport of the intermediate processing shed 2 and the front conveying shed 1 is stopped. Then, the front conveying shed 1 transports the material in reverse to separate it. The intermediate processing shed 2 is then lowered so that the material is supported by the feeding conveying shed 3. This can complete the material separation without the blocking element 301 (but it cannot guarantee that the amount of material is sufficient). At the same time, the feeding conveying shed 3 can be designed to be wider to prevent the material from falling.

[0049] Based on the automatic material sorting and unloading device of the present invention, the present invention provides an automatic material sorting and unloading method, which, taking a preferred embodiment as an example, includes the following steps.

[0050] Step S1: Place several materials to be conveyed on the front conveyor shed 1, start the front conveyor shed 1 to convey all the materials towards the middle processing shed 2.

[0051] Step S2: Keep or adjust the intermediate processing shed 2 in the raised state, start the intermediate processing shed 2 conveying, and continue to convey the material in contact with the intermediate processing shed 2 towards the feeding conveying shed 3.

[0052] In step S3, the front conveyor shed 1 reverses the conveying process, conveying the material in contact with the front conveyor shed 1 in a direction away from the feed conveyor shed 3 and the intermediate processing shed 2, thereby dividing all the material into two parts located on the front conveyor shed 1 and on the intermediate processing shed 2.

[0053] In step S4, the intermediate processing shed 2 is lowered, and all the materials on the intermediate processing shed 2 fall onto the feeding conveyor shed 3. The feeding conveyor shed 3 is then started for conveying. After the processing equipment has finished processing this batch of materials, the above steps can be repeated to process the next batch of materials.

[0054] More preferably, for the scheme in which the feeding conveyor shed 3 or the intermediate processing shed 2 is provided with a blocking member 301 on the side away from the front conveyor shed 1, the following method can be adopted.

[0055] In step S2, there is a working state where the front conveying shed 1 continues to transport in the forward direction, and the intermediate processing shed 2 and the front conveying shed 1 are transported simultaneously and in the same direction. This results in the material being blocked by the blocking member 301 and unable to continue moving in the conveying direction, thus ensuring that the amount of material distributed is as large as possible.

[0056] In step S3, the intermediate processing rack 2 and the front-end conveying rack 1 are in a state of simultaneous and reverse conveying (e.g., Figure 2 As shown in the diagram, this keeps as much material as possible blocked by the blocking element 301. While the material is blocked and unable to move further, the intermediate processing rack 2 continues to operate. This causes the material to vibrate; for example, the chain will continuously impact and rub against the bottom of the stacked profiles, causing unstable material to roll down and lay stably on the intermediate processing rack 2, or be conveyed away in the opposite direction by the front conveyor rack 1. The material conveyed away in the opposite direction by the front conveyor rack 1 in this step is excess material exceeding the single feeding quantity. After running for a period of time or observing that the material distribution is stable, both the intermediate processing rack 2 and the front conveyor rack 1 are stopped. After stopping, because the material is placed stably and the tilt angle of the intermediate processing rack 2 and the front conveyor rack 1 relative to the horizontal plane is not large, the material will not slip. Even profiles stacked in several layers will basically maintain their original state under the action of friction, and therefore will not exceed the feed inlet range of the processing equipment (shearing machine 4).

[0057] Furthermore, for step S4, the device structure is preferably configured as described above, where "in the lowered state of the intermediate processing rack 2, the upper surface of the feeding conveyor rack 3 is higher than the upper surface of the intermediate processing rack 2." This ensures that the material on the intermediate processing rack 2 is naturally transferred to the feeding conveyor rack 3 for support simply by lowering the intermediate processing rack 2. It is conceivable that in other embodiments, the intermediate processing rack 2 may always be higher than the feeding conveyor rack 3, or farther away from the feeding conveyor rack 3, so that after the material distribution is completed, the intermediate processing rack 2 moves the material to the feeding conveyor rack 3 via forward conveying.

Claims

1. An automatic dispensing and dispensing device, characterized by, It includes a front conveyor shed (1), an intermediate processing shed (2), and a feeding conveyor shed (3) connected in sequence; the intermediate processing shed (2) is connected to a lifting mechanism, and in the raised state, the upper surface of the intermediate processing shed (2) is higher than the upper surface of the feeding conveyor shed (3), and the upper surface of the intermediate processing shed (2) and the upper surface of the front conveyor shed (1) form an obtuse angle with the opening facing upward; one end of the intermediate processing shed (2) away from the front conveyor shed (1) is the lifting end, and the other end of the intermediate processing shed (2) is the rotating shaft end; the intermediate processing shed (2) includes a support (201), and the support (201) is rotatably connected to the rotating shaft end through the shed rotating shaft (202); the feeding conveyor shed (3) or the intermediate processing shed (2) is provided with a blocking member (301) on the side away from the front conveyor shed (1). The automatic material sorting and unloading device is used to implement the automatic material sorting and unloading method, which includes the following steps: Step S1: Place several materials to be conveyed on the front conveyor shed (1), start the front conveyor shed (1) to convey in the forward direction, and convey all the materials towards the middle processing shed (2); Step S2: Keep or adjust the intermediate processing shed (2) in the raised state, start the intermediate processing shed (2) conveying, and convey the material in contact with the intermediate processing shed (2) towards the feeding conveying shed (3); Step S3, the front conveyor shed (1) reverses the conveying direction, and the material in contact with the front conveyor shed (1) is conveyed away from the feed conveyor shed (3) and the intermediate processing shed (2); Step S4, the intermediate processing rack (2) is lowered, and all the materials on the intermediate processing rack (2) fall onto the feeding conveyor rack (3). The feeding conveyor rack (3) is started for conveying. In step S2, there is a working state in which the front conveying shed (1) continues to transport in the forward direction and the intermediate processing shed (2) and the front conveying shed (1) are transported simultaneously and in the same direction, thus forming a state in which the material as a whole is blocked by the blocking member (301) and cannot continue to move in the conveying direction. In step S3, the intermediate processing rack (2) and the front conveying rack (1) are simultaneously and in reverse conveying state, thereby keeping as much material as possible in the state blocked by the blocking member (301); the material conveyed in reverse by the front conveying rack (1) in this step is excess material exceeding the single feeding amount; then, both the intermediate processing rack (2) and the front conveying rack (1) stop conveying.

2. The automatic dispensing and dosing device according to claim 1, characterized in that The intermediate processing shed (2) also includes an intermediate track frame (203). Both ends of the intermediate track frame (203) are rotatably connected to sprockets (204) and a chain (205) is driven between the sprockets (204) at both ends. The sprocket (204) at one end of the intermediate track frame (203) is driven to the intermediate shed motor (206). The rotating shaft end of the intermediate track frame (203) is rotatably connected to the support (201) through the shed rotating shaft (202).

3. The automatic dispensing and dosing device according to claim 2, characterized in that The lifting mechanism includes a lifting shaft (207), which is rotatably connected to a support (201). A drive arm (208) is fixedly connected to the lifting shaft (207), which is rotatably connected to one end of a telescopic cylinder (209). The other end of the telescopic cylinder (209) is connected to the ground or the support (201) through a telescopic cylinder hinge seat (210). A lifting arm (211) is also fixedly connected to the lifting shaft (207), which is rotatably connected to a lifting link (212). The other end of the lifting link (212) is rotatably connected to an intermediate track frame (203).

4. The automatic dispensing and dosing device according to any one of claims 1 to 3, characterized in that The upper surface of the front conveyor rack (1) is an inclined plane with the input side higher than the output side; when the intermediate processing rack (2) is raised, the upper surface of the intermediate processing rack (2) is an inclined plane with the output side higher than the input side, and the vertex of the obtuse angle formed by the upper surface of the intermediate processing rack (2) and the upper surface of the front conveyor rack (1) is located above the upper surface of the feed conveyor rack (3).

5. The automatic dispensing and dosing device according to any one of claims 1 to 3, characterized in that The output end of the feeding conveyor (3) is equipped with a shearing machine (4) for cutting long strip materials. The length direction of the long strip material is the same as the conveying direction of the feeding conveyor (3), and the length direction of the long strip material is perpendicular to the conveying direction of the front conveyor (1) and the intermediate processing shed (2). The position of the output end of the front conveyor (1) corresponds to the edge of the inlet of the shearing machine (4).

6. The automatic dispensing and dosing device according to claim 5, characterized in that The feeding conveyor rack (3) includes several roller conveyor racks, and there is a gap between adjacent roller conveyor racks for accommodating the intermediate processing rack (2) and the front conveyor rack (1); the upper surface of the front conveyor rack (1) is higher than the upper surface of the feeding conveyor rack (3); the upper surface of the front conveyor rack (1) is higher than the shaft end of the intermediate processing rack (2); when the intermediate processing rack (2) is lowered, the upper surface of the feeding conveyor rack (3) is higher than the upper surface of the intermediate processing rack (2).

Images