A hopper and discharge system for discharging plastic granules for flooring.

Abstract

This utility model relates to a hopper and discharge system for discharging plastic granules used in flooring. The hopper includes: a hopper body; a hopper fixed to the bottom of the hopper body with its inlet connected to the discharge outlet of the hopper body; a strong magnet removably disposed within the hopper for adsorbing metallic impurities mixed in the plastic granules; an upper gate slidably connected to the hopper for selectively opening and closing the hopper's inlet; a lower gate slidably connected to the hopper and located below the upper gate for selectively opening and closing the hopper's discharge outlet; and a discharge platform plate located below the lower gate plate. The discharge platform plate has a production outlet and a residual material outlet spaced apart. The hopper can slide along the discharge platform plate until its discharge outlet in the open state connects to either the production outlet or the residual material outlet. This hopper can switch between working, cleaning, and discharge states, meeting the needs of removing ferromagnetic metals from the plastic granules, cleaning the strong magnet, and discharging residual plastic granules from the hopper.

Description

Technical Field

[0001] This utility model relates to the field of flooring production technology, and in particular to a hopper and discharge system for discharging plastic particles for flooring. Background Technology

[0002] In the feeding process of plastic materials, hoppers are typically used to transport the granules to processing equipment such as extruders to form plastic products. This process is particularly critical in the plastic flooring manufacturing industry. During manufacturing, transportation, loading, unloading, and feeding, plastic granules are easily contaminated by residual metal impurities on various devices and may contain other metal impurities. If these metal impurities enter the extruder along with the raw materials, they can easily cause surface defects, structural weakening, or functional abnormalities in flooring and other products, seriously affecting product quality.

[0003] Furthermore, during the production of plastic flooring, raw material batches are frequently changed due to process switching, color changes, or formula adjustments. For example, after a batch of plastic granules of a specific color or formula is processed, it is necessary to switch to the next batch. Due to the influence of ambient humidity, powdery plastic granules easily adhere to the lower sidewall of the radially tapering, bowl-shaped hopper. If not thoroughly cleaned, raw materials of different batches, colors, or properties will mix, leading to cross-contamination and affecting product quality. Therefore, it is necessary to clean the remaining material in the hopper before changing batches. Since the discharge port of the hopper is fixedly connected to the extruder below, the hopper needs to be disassembled and its interior cleaned, a tedious and complex operation. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides a hopper and discharge system for discharging plastic granules for flooring, which solves the technical problems of easy mixing of metal impurities in plastic granules affecting product quality, and the need to disassemble the hopper and clean its interior when cleaning the residual material in the hopper, which is cumbersome and complicated.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the main technical solutions adopted by this utility model include:

[0008] In a first aspect, this utility model provides a hopper for discharging plastic granules for flooring, comprising:

[0009] The hopper body is used to receive and transport plastic particles;

[0010] The hopper is fixedly connected to the bottom of the hopper body, and its inlet is connected to the outlet of the hopper body.

[0011] A strong magnet is removably installed in the hopper to adsorb metallic impurities mixed in the plastic particles.

[0012] The upper gate is slidably connected to the hopper and is used to selectively open and close the material inlet of the hopper;

[0013] The lower gate is slidably connected to the hopper and located below the upper gate, and is used to selectively open and close the discharge port of the hopper;

[0014] The unloading platform plate is located below the lower gate plate. The unloading platform plate is provided with a production outlet and a waste material outlet at intervals. The hopper can slide along the unloading platform plate to connect one of the discharge ports of the hopper in the open state with the production outlet or the waste material outlet.

[0015] According to this utility model, it also includes a transparent cover plate, and the strong magnet is fixed on the transparent cover plate;

[0016] The transparent cover is detachably connected to the hopper and is used to open and close the opening on the side wall of the hopper.

[0017] According to this invention, the strong magnet is a plurality of horizontally oriented strong magnetic rods.

[0018] According to this utility model, it also includes a hinged screw;

[0019] The first end of the hinge screw is hinged to the hopper, and the second end can be inserted into a slot opened on one side of the transparent cover plate. The second end can also be threaded to a nut that abuts against the transparent cover plate to fix the transparent cover plate to the hopper.

[0020] According to this utility model, the nut is a wing nut.

[0021] According to this utility model, the hopper includes an iron removal seat and a slide seat;

[0022] The iron removal seat is fixed to the bottom of the hopper body, the slide seat is fixed to the bottom of the iron removal seat, the iron removal seat and the slide seat are connected vertically, the top opening of the iron removal seat is the receiving port of the hopper, and the bottom opening of the slide seat is the discharge port of the hopper.

[0023] The upper gate is slidably connected to the iron removal seat, the lower gate is slidably connected to the slide table seat, the unloading platform plate is slidably connected to the slide table seat, and the strong magnet is disposed inside the iron removal seat.

[0024] According to this utility model, both the upper gate and the lower gate include a plate body and a handle; both the iron removal seat and the slide seat have insertion slots on their side walls, and both the iron removal seat and the slide seat have first guide rails inside, and the plate body can be inserted into the insertion slots and slidably disposed on the first guide rails;

[0025] When the plate is inserted into the socket, the plate can close the corresponding receiving port or discharging port; when the plate extends out of the socket, the plate can open the corresponding receiving port or discharging port.

[0026] The bottom of the slide base is provided with a second guide rail, which is slidably connected to the unloading platform plate.

[0027] According to this utility model, limiting blocks are provided at the top of both ends of the unloading platform plate;

[0028] When one of the limiting blocks abuts against the side wall of the hopper, the discharge port of the hopper is connected to the production discharge port or the surplus material discharge port.

[0029] According to this utility model, it also includes a limiting plate that can be detachably connected to the side wall of the silo, and the limiting plate is provided with protrusions.

[0030] Two limiting grooves are provided at intervals along the sliding direction on the side wall of the unloading platform plate;

[0031] When the discharge port of the hopper is connected to the production discharge port or the surplus material discharge port, the protrusion can be inserted into one of the limiting grooves, and the limiting plate is fixed on the hopper.

[0032] Secondly, this utility model also provides a discharge system, including the hopper for discharging plastic granules for flooring, and also includes an extruder and a discharge station;

[0033] The production outlet is connected to the material inlet of the extruder, and the waste material outlet is connected to the unloading station.

[0034] (III) Beneficial Effects

[0035] The beneficial effects of this utility model are as follows: The hopper of this utility model has a working state, a cleaning state, and a discharging state. When the hopper is switched to the working state: the upper gate opens the material inlet of the hopper, the lower gate opens the material outlet of the hopper, and the material outlet of the hopper is connected to the production outlet. Plastic granules enter the hopper body through the conveying system and are discharged into the extruder through the production outlet of the hopper. In this working state, the ferromagnetic metal in the plastic granules can be attracted to the strong magnet to remove the ferromagnetic metal from the plastic granules, thereby ensuring the purity of the plastic granules entering the extruder. When it is necessary to clean the ferromagnetic metal on the strong magnet, the hopper switches to the cleaning state: the upper gate closes the material inlet of the hopper, which can quickly cut off the discharge of the hopper body, and then the strong magnet is removed to clean the ferromagnetic metal on the surface, ensuring the magnetic attraction force in the subsequent feeding process without affecting the normal feeding of the hopper. When material needs to be changed, the hopper switches to the unloading state: the upper gate opens the material inlet of the hopper, and the lower gate opens the material outlet of the hopper. The material outlet of the hopper is connected to the residual material outlet. The residual material in the hopper body and the hopper is vibrated and discharged into the unloading station by hammering with tools such as air hammers. This process does not require loading and unloading of the hopper, which improves the material changing efficiency and avoids residual material flying and polluting the site. In addition, the residual material discharged into the unloading station will not come into contact with external impurities, is relatively clean, can be recycled and reused, and reduces production costs.

[0036] As can be seen from the above, this hopper can switch between working, cleaning and unloading states, which meets the needs of removing ferromagnetic metals from plastic particles, cleaning strong magnets, and discharging residual plastic particles from the hopper, thereby improving the feeding quality. Attached Figure Description

[0037] Figure 1 This is a schematic diagram of the hopper of this utility model in the working state;

[0038] Figure 2 This is a schematic diagram of the hopper in the cleaning state.

[0039] Figure 3 This is a three-dimensional schematic diagram of the silo;

[0040] Figure 4 This is a schematic diagram of the hopper in the unloading state.

[0041] Figure 5 for Figure 4 A sectional view.

[0042] [Explanation of Labels in the Attached Image]

[0043] 1: Hopper body;

[0044] 2: Hopper; 21: Iron removal seat; 211: Observation port; 22: Slide table seat;

[0045] 3: Strong magnet;

[0046] 4: Upper gate; 41: First plate; 42: Connecting rod; 43: First handle;

[0047] 5: Lower gate; 51: Second plate; 52: Second handle;

[0048] 6: Unloading platform plate; 61: Production discharge port; 62: Residual material discharge port; 63: Limit block; 64: Limit groove;

[0049] 7: Transparent cover; 71: Slot;

[0050] 81: Hinged screw; 82: Nut;

[0051] 9: Limiting plate; 91: Handle. Detailed Implementation

[0052] To better explain and facilitate understanding of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0053] See Figures 1-5 The present invention provides a hopper for discharging plastic granules for flooring, wherein the plastic granules discharged from the hopper enter an extruder to produce flooring. The hopper includes a hopper body 1, a hopper 2, a strong magnet 3, an upper gate 4, a lower gate 5, and a discharge platform plate 6.

[0054] The hopper body 1 is used to receive and transport plastic granules. The hopper 2 is fixedly connected to the bottom of the hopper body 1, and its inlet connects to the outlet of the hopper body 1. A strong magnet 3 is located inside the hopper 2 to adsorb metallic impurities mixed in the plastic granules. An upper gate 4 is slidably connected to the hopper 2 to open or close its inlet. A lower gate 5 is slidably connected to the hopper 2 to open or close its outlet. A discharge platform 6 is located below the lower gate 5, and a production outlet 61 and a waste material outlet 62 are spaced apart on the discharge platform 6. The hopper 2 is slidably connected to the discharge platform. The hopper 2 can slide along the discharge platform 6 to the open state, where its outlet connects to either the production outlet 61 or the waste material outlet 62. The production outlet 61 corresponds to the inlet of the extruder, and the waste material outlet 62 corresponds to the discharge station, which can be a container such as a bag capable of holding waste material.

[0055] Based on the above settings, this hopper has working, cleaning, and unloading states. When the hopper switches to the working state: the upper gate 4 opens the receiving port of the hopper 2, the lower gate 5 opens the discharge port of the hopper 2, and the discharge port of the hopper 2 is connected to the production discharge port 61. Plastic granules enter the hopper body 1 through the conveying system and are discharged into the extruder through the production discharge port 61 of the hopper 2. In this working state, the ferromagnetic metal in the plastic granules can be attracted to the strong magnet 3 to remove the ferromagnetic metal from the plastic granules, thereby ensuring the purity of the plastic granules entering the extruder. When it is necessary to clean the ferromagnetic metal on the strong magnet 3, the hopper switches to the cleaning state: the upper gate 4 closes the receiving port of the hopper 2, which can quickly cut off the discharge of the hopper body 1. Then, the strong magnet 3 is removed to clean the ferromagnetic metal on its surface, ensuring the magnetic attraction force in the subsequent feeding process without affecting the normal feeding of the hopper. When material needs to be changed, the hopper switches to the unloading state: the upper gate 4 opens the receiving port of the hopper 2, and the lower gate 5 opens the discharge port of the hopper 2. The discharge port of the hopper 2 is connected to the residual material discharge port 62. The residual material in the hopper body 1 and the hopper 2 is discharged into the unloading station through the discharge port and the residual material discharge port 62 by hammering with tools such as a pneumatic hammer. This process does not require loading and unloading the hopper, which improves the material changing efficiency and avoids residual material flying and polluting the site. In addition, the residual material discharged into the unloading station will not come into contact with external impurities, is relatively clean, can be recycled and reused, and reduces production costs. At the same time, after cleaning, the hopper 2 is slid and the discharge port of the hopper 2 is connected to the production discharge port 61.

[0056] Avoid mixing different materials to prevent them from affecting the quality of plastic products.

[0057] As can be seen from the above, this hopper can switch between working state, cleaning state and unloading state to meet the needs of removing ferromagnetic metal from plastic particles, cleaning strong magnet 3, and discharging residual plastic particles from hopper 2, thereby improving the feeding quality.

[0058] It should be noted that when the material head switches from the working state to the material changing state, the material receiving port and the material discharge port of the hopper 2 are closed by the upper gate 4 and the lower gate 5 respectively. Then, the hopper 2 is slid to the discharge port of the hopper 2 to connect with the residual material discharge port 62. Subsequently, the material receiving port and the material discharge port of the hopper 2 are opened by the upper gate 4 and the lower gate 5 respectively.

[0059] Except for the strong magnet 3, the structure of this hopper is made of non-magnetic materials, such as stainless steel, to avoid affecting the strong magnet 3.

[0060] Specifically, the strong magnet 3 can be a permanent magnet.

[0061] See Figure 1 Furthermore, to facilitate observation of the condition inside the hopper 2, an opening 211 is provided on the side wall of the hopper 2, and the hopper also includes a transparent cover plate 7.

[0062] A strong magnet 3 is fixed to a transparent cover plate 7. The transparent cover plate 7 is detachably connected to the hopper 2 and is used to open and close the opening 211, allowing real-time observation of the strong magnet 3's attraction to ferromagnetic metal and the material discharge status within the hopper 2. Simultaneously, when it is necessary to clean the ferromagnetic metal from the strong magnet 3, the strong magnet 3 can be easily removed from the hopper 2 by removing the transparent cover plate 7. Furthermore, when it is necessary to change materials, the transparent cover plate 7 can be removed when the hopper is switched to the unloading state, and tools can be inserted into the opening 211 to clean the residual material adhering to the hopper 2, assisting in cleaning the residual material in the hopper 2 and improving cleaning efficiency and quality.

[0063] Optionally, the transparent cover 7 is made of tempered glass or acrylic.

[0064] See Figure 5 Specifically, the strong magnet 3 consists of multiple horizontally oriented strong magnetic rods to increase the contact area with the plastic particles, improve magnetic attraction efficiency, and prevent omissions.

[0065] Specifically, the strong magnet 3 is fixed to the transparent cover plate 7 by bolts.

[0066] Specifically, to facilitate the loading and unloading of the transparent cover plate 7, this hopper also includes a hinged screw 81.

[0067] The first end of the hinge screw 81 is hinged to the hopper 2, and the second end can be inserted into the slot 71 opened on one side of the transparent cover 7. The second end can also be threaded to a nut 82 that abuts against the transparent cover 7 to fix the transparent cover 7 to the hopper 2.

[0068] When the transparent cover 7 needs to be removed, unscrew the nut 82, then turn the screw to disengage it from the slot 71. When the transparent cover 7 needs to be installed, first align the transparent cover 7 with the opening 211, then turn the screw to insert it into the slot 71. Next, screw the nut 82 onto the second end of the hinged screw 81 until the nut 82 abuts against the transparent cover 7, thus fixing the transparent cover 7 to the hopper 2. This installation and removal method is simple and convenient.

[0069] Optionally, the articulated screw 81 is horizontally oriented.

[0070] Preferably, there are multiple hinge screws 81 arranged around the opening 211, and slots 71 are provided on the transparent cover plate 7 with the same number and position as the hinge screws 81, so as to improve the fixing strength of the transparent cover plate 7.

[0071] Preferably, the thread is a wing nut 82, which is convenient for the operator to tighten.

[0072] Furthermore, the hopper 2 includes an iron removal seat 21 and a sliding table seat 22.

[0073] The iron removal seat 21 is fixed to the bottom of the hopper body, and the slide seat 22 is fixed to the bottom of the iron removal seat 21. The iron removal seat 21 and the slide seat 22 are connected vertically. The top opening 211 of the iron removal seat 21 is the receiving port of the hopper 2, and the bottom opening 211 of the slide seat 22 is the discharge port of the hopper 2.

[0074] The upper gate plate 4 is slidably connected to the iron removal seat 21, the lower gate plate 5 is slidably connected to the slide seat 22, the unloading platform plate 6 is slidably connected to the slide seat 22, the strong magnet 3 is located inside the iron removal seat 21, and the opening 211 is opened on the side wall of the iron removal seat 21.

[0075] Preferably, the sidewalls of both the iron base 21 and the slide base 22 are flat. Compared to the rounded bowl shape, the flat sidewalls are more conducive to the plastic particles sliding down under their own weight and are less likely to stick and accumulate on the sidewalls.

[0076] Optionally, the iron removal seat 21 is fixed to the hopper body by bolts, and the slide seat 22 is fixed to the iron removal seat 21 by bolts.

[0077] Specifically, both the upper gate 4 and the lower gate 5 include a plate body and a handle.

[0078] Both the iron removal base 21 and the slide base 22 have insertion slots on their side walls, and both have first guide rails inside. The plate body is slidably mounted on the first guide rails. The first end of the connecting rod 42 is fixed to the plate body, and the second end is fixedly connected to a handle.

[0079] In use, operators can push and pull the upper gate 4 and lower gate 5 to open and close the corresponding material inlet and outlet respectively, improving operational convenience. Specifically, when the plate is inserted into the socket, it can close the material inlet or outlet. When the plate extends out of the socket, it can open the corresponding material inlet or outlet.

[0080] More specifically, the upper gate 4 includes a first plate 41, a connecting rod 42 and a first handle 43. The first end of the connecting rod 42 is fixed to the first plate 41, and the second end is fixedly connected to the first handle 43. An insertion hole for inserting the connecting rod 42 is opened on the side wall of the iron base 21.

[0081] The lower gate 5 includes a second plate 51 and a second handle 52, which are integrally formed.

[0082] Specifically, a second guide rail is provided at the bottom of the slide base 22, and the second guide rail is slidably connected to the unloading platform plate 6.

[0083] In use, the operator can push the hopper 2 to slide relative to the unloading platform plate 6 so that the discharge port of the hopper 2 is connected to the production discharge port 61 or the residual material discharge port 62 of the unloading platform plate 6.

[0084] Preferably, in order to limit the movement of the hopper 2 along the unloading slide, this embodiment further specifies:

[0085] Limiting blocks 63 are provided at the top of both ends of the unloading platform plate 6. When one of the limiting blocks 63 abuts against the side wall of the slide seat 22, the hopper 2 moves along the unloading platform plate 6 to the discharge port of the hopper 2, which connects to the production discharge port 61 or the surplus material discharge port 62.

[0086] See Figure 4 More preferably, in order to lock the position of the hopper 2, this embodiment further specifies:

[0087] The hopper also includes a limiting plate 9 that can be detachably connected to the side wall of the slide base 22, and the limiting plate 9 is provided with protrusions. Two limiting grooves 64 are provided at intervals along the sliding direction on the side wall of the unloading platform plate 6.

[0088] When the discharge port of the hopper 2 is connected to the production discharge port 61 or the surplus material discharge port 62, the protrusion can be inserted into one of the limiting grooves 64, and the limiting plate 9 is fixed on the hopper 2 to prevent the hopper 2 from shifting.

[0089] Optionally, the limiting plate 9 can be configured with an L-shaped longitudinal section, a protrusion on one vertical wall that can be inserted into the limiting groove 64, and another vertical wall that can be detachably connected to the hopper 2 by bolts.

[0090] More preferably, a handle 91 is also provided on the limiting plate 9 for easy gripping by the operator. In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0091] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "beneath" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0092] In the description of this specification, the terms "one embodiment," "some embodiments," "embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0093] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make modifications, alterations, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A hopper for discharging plastic granules for flooring, characterized in that, include: The hopper body (1) is used to receive and transport plastic particles; The hopper (2) is fixedly connected to the bottom of the hopper body (1), and its receiving port is connected to the discharge port of the hopper body (1); A strong magnet (3) is removably installed in the hopper (2) to adsorb metallic impurities mixed in the plastic particles; The upper gate (4) is slidably connected to the hopper (2) and is used to selectively open and close the material inlet of the hopper (2); The lower gate (5) is slidably connected to the hopper (2) and located below the upper gate (4), and is used to selectively open and close the discharge port of the hopper (2); The unloading platform plate (6) is located below the lower gate plate (5). The unloading platform is provided with a production discharge port (61) and a waste material discharge port (62) at intervals. The hopper (2) can slide along the unloading platform plate (6) to connect one of the discharge ports of the hopper (2) in the open state with the production discharge port (61) or the waste material discharge port (62).

2. The hopper for discharging plastic granules for flooring as described in claim 1, characterized in that, It also includes a transparent cover plate (7), on which the strong magnet (3) is fixed; The transparent cover (7) is detachably connected to the hopper (2) and is used to open and close the opening (211) on the side wall of the hopper (2).

3. The hopper for discharging plastic granules for flooring as described in claim 2, characterized in that, The strong magnet (3) consists of multiple horizontally oriented strong magnetic rods.

4. The hopper for discharging plastic granules for flooring as described in claim 2, characterized in that, It also includes a hinged screw (81); The first end of the hinge screw (81) is hinged to the hopper (2), and the second end can be inserted into the slot (71) opened on one side of the transparent cover plate (7). The second end can be threaded to a nut (82) that abuts against the transparent cover plate (7) to fix the transparent cover plate (7) to the hopper (2).

5. The hopper for discharging plastic granules for flooring as described in claim 4, characterized in that, The nut (82) is a wing nut (82).

6. The hopper for discharging plastic granules for flooring as described in claim 1, characterized in that, The hopper (2) includes an iron removal seat (21) and a slide seat (22); The iron removal seat (21) is fixed to the bottom of the hopper body (1), and the slide seat (22) is fixed to the bottom of the iron removal seat (21). The iron removal seat (21) and the slide seat (22) are connected vertically. The top opening of the iron removal seat (21) is the receiving port of the hopper (2), and the bottom opening of the slide seat (22) is the discharge port of the hopper (2). The upper gate plate (4) is slidably connected to the iron removal seat (21), the lower gate plate (5) is slidably connected to the slide seat (22), the unloading platform plate (6) is slidably connected to the slide seat (22), and the strong magnet (3) is located inside the iron removal seat (21).

7. The hopper for discharging plastic granules for flooring as described in claim 6, characterized in that, The upper gate (4) and the lower gate (5) both include a plate body and a handle; the side walls of the iron removal seat (21) and the slide seat (22) are provided with insertion slots, and the iron removal seat (21) and the slide seat (22) are both provided with first guide rails, and the plate body can be inserted into the insertion slots and slidably disposed on the first guide rails; When the plate is inserted into the socket, the plate can close the corresponding material inlet or outlet; when the plate extends out of the socket, the plate can open the corresponding material inlet or outlet. The bottom of the slide base (22) is provided with a second guide rail, which is slidably connected to the unloading platform plate (6).

8. The hopper for discharging plastic granules for flooring as described in claim 1, characterized in that, Limiting blocks (63) are provided at the top of both ends of the unloading platform plate (6); When one of the limiting blocks (63) abuts against the side wall of the hopper (2), the discharge port of the hopper (2) is connected to the production discharge port (61) or the surplus material discharge port (62).

9. The hopper for discharging plastic granules for flooring as described in claim 1, characterized in that, It also includes a limiting plate (9) that can be detachably connected to the side wall of the hopper (2), and the limiting plate (9) is provided with protrusions; Two limiting grooves (64) are provided at intervals along the sliding direction on the side wall of the unloading platform plate (6); When the discharge port of the hopper (2) is connected to the production discharge port (61) or the surplus material discharge port (62), the protrusion can be inserted into one of the limiting grooves (64), and the limiting plate (9) is fixed on the hopper (2).

10. A discharge system comprising a hopper for discharging plastic granules for flooring as described in any one of claims 1-9, characterized in that, It also includes the extruder and unloading station; The production outlet (61) is connected to the material receiving port of the extruder, and the waste material outlet (62) is connected to the unloading station.

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