A new type of edge recovery machine with noise reduction

Abstract

The utility model discloses a novel noise reduction type machine edge recycling machine relates to the field of plastic processing auxiliary equipment, solves the problem of the frequent opening and closing of the feeding opening of the existing machine edge recycling machine causing noise leakage. It includes base, crushing mechanism, feeding pipe etc. The key improvement is that the auxiliary pipe blanking end is sealingly connected with the feeding pipe, and the feeding end is provided with a feeding opening with a discharging disc; the feeding opening is hingedly connected with a baffle, which is reset by gravity, and the top end is provided with a sealing gasket, and the bottom end is provided with a permanent magnet strip to strengthen the sealing, and the baffle needs to be manually opened to push the material; a hinged switch plate is arranged in the feeding pipe, and an external reduction motor controls the start and stop of the switch plate, and the switch plate is sealingly connected with the auxiliary pipe blanking end when closed; the matched control mechanism comprises a proximity switch and a microcontroller with a timer, the proximity switch senses the opening of the baffle, the microcontroller starts the timer, the baffle is reset during timing, the reduction motor opens the switch plate to discharge the material after the timing is completed, and the switch plate is closed after secondary timing. The feeding opening is sealed throughout the process, the noise is greatly reduced, the operation is convenient, and it is suitable for recycling plastic processing scraps.

Description

Technical Field

[0001] This utility model relates to the field of auxiliary equipment technology for plastic processing, and in particular to a novel noise-reducing machine-side recycling machine. Background Technology

[0002] During plastic injection molding, extrusion, and other processing and production processes, a large amount of plastic scrap (such as flash, defective products, and cutting waste) is generated. To achieve raw material recycling and reduce production costs, the industry commonly uses machine edge recycling machines to process these scraps on the spot. This equipment, also known as a machine edge crusher or online recycling machine, has the core function of quickly crushing scrap into fine particles next to plastic processing equipment (such as injection molding machines and extruders), and then sending them back to the processing equipment through a conveyor structure to participate in production again, forming a closed-loop process of "processing-recycling-reprocessing".

[0003] With increasing demands on workshop environments from industrial production, noise reduction performance of machine-side recycling machines has become an important area for improvement. Currently, existing noise reduction methods for machine-side recycling machines mainly focus on three aspects:

[0004] Thickening the equipment casing enhances sound insulation and reduces the transmission of internal noise to the outside through the casing.

[0005] A silent motor is selected as the power source to reduce the mechanical noise generated by the motor operation from the source of noise.

[0006] The bottom discharge stage uses an air pump to discharge materials, replacing the traditional mechanical conveying structure and reducing friction and impact noise during material conveying.

[0007] However, existing noise reduction solutions still have significant drawbacks: the feeding port of the machine-side recycling machine requires frequent feeding of scrap materials. For ease of operation, the feeding port is usually designed as an openable shielding structure (such as a flip cover or baffle). In actual production, due to the high feeding frequency, the shielding structure needs to be repeatedly opened and closed, resulting in the feeding port being in a "non-sealed" state for a long time. The high-frequency noise generated by the operation of the internal crushing mechanism will leak directly through the unsealed feeding port, severely weakening the noise reduction effect of measures such as thickening the shell and using silent motors. Ultimately, the workshop noise remains at a high level, affecting the working environment and physical and mental health of the operators. Utility Model Content

[0008] To solve the above-mentioned technical problems, this utility model provides a new type of noise-reducing machine-side recycling machine that can keep the feeding port sealed during feeding, greatly reducing noise and improving the noise reduction effect.

[0009] This utility model discloses a novel noise-reducing machine-side recycling machine, comprising a base, a crushing mechanism mounted on the top of the base, a power mechanism mounted on the base, a discharge hopper connected to the bottom of the crushing mechanism, an air pump mechanism for assisting the discharge hopper to discharge material installed inside the base, a feeding pipe connected to the top of the crushing mechanism, and a control mechanism for the machine-side recycling machine mounted on the base. It also includes:

[0010] An auxiliary tube is inserted into the feeding tube at its discharge end. The outer wall of the auxiliary tube is sealed tightly against the inner wall of the feeding tube. The feeding end of the auxiliary tube is provided with a vertical feeding port. A feeding tray is installed at the feeding port of the auxiliary tube. The size of the feeding groove inside the feeding tray is smaller than the size of the feeding port.

[0011] The baffle is hinged to the top of the feeding port. The baffle is kept hanging down under the action of gravity, and the baffle is in close contact with the side wall of the feeding tray facing the auxiliary tube. The top of the baffle is slidably in close contact with the top of the feeding port through the connecting component.

[0012] A switch plate, the top of which is hinged to the top of the inner wall of the feeding tube;

[0013] A geared motor is installed on the outer wall of the feeding pipe, and the output end of the geared motor is rotatably inserted into the feeding pipe. The output end of the geared motor is concentrically connected to a hinge shaft of the switch plate. When the geared motor controls the switch plate to close, the switch plate is tightly sealed to the side wall of the material drop end of the auxiliary pipe. The geared motor is equipped with a control mechanism, and the geared motor draws power from the control mechanism of the machine-side recycling machine.

[0014] Furthermore, the control mechanism includes a proximity switch and a microcontroller. The microcontroller is installed inside the control mechanism and integrates a timer module. The microcontroller is electrically connected to the control mechanism of the machine-side recycling machine. The geared motor and the proximity switch are both connected to the signal line of the microcontroller. The proximity switch is installed on the side wall of the auxiliary tube near the feeding port. The sensing end of the proximity switch faces into the auxiliary tube and is adjacent to the baffle.

[0015] Furthermore, a buffer pad is installed on the side wall of the switch plate facing the baffle.

[0016] Furthermore, a slot is provided at the bottom end of the side wall of the baffle facing the feeding tray, and a permanent magnet strip is installed in the slot. The baffle is magnetically attracted to the feeding tray by the permanent magnet strip.

[0017] Furthermore, the connecting component is configured as a sealing gasket, and the top of the baffle is provided with an arc-shaped groove. The sealing gasket is adhered and installed in the arc-shaped groove. The sealing gasket is used to block and seal the gap between the top of the baffle and the top of the inner wall of the auxiliary tube.

[0018] Furthermore, a sound-insulating board is adhered to the side wall of the baffle facing the switch plate.

[0019] Furthermore, the bottom end and the edge of the side wall of the feeding tray are both designed with rounded corners.

[0020] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0021] 1. Fully sealed and noise-reducing, fundamentally improving performance: The baffle is briefly opened when manually pushing the material, and automatically resets and closes after the material is pushed; when the switch plate is opened to release the material, the baffle has already closed in advance, realizing a full sealing of the feeding port from "baffle closed-switch plate open-switch plate closed", which completely solves the problem of noise leakage caused by frequent opening and closing of the traditional feeding port, greatly reduces workshop noise, and protects the health of operators.

[0022] 2. Ease of operation and sealing: The baffle automatically resets and seals by gravity and permanent magnet strip, eliminating the need for manual locking; after manual pushing triggers the proximity switch, the switch board is automatically controlled by the microcontroller to start and stop, reducing manual intervention, which is convenient to operate and avoids sealing leaks caused by human operation.

[0023] 3. Multi-stage sealing to block noise channels: The auxiliary pipe and the feeding pipe are sealed and fitted together, the top of the baffle is equipped with a sealing gasket, the bottom is reinforced by a permanent magnet strip to strengthen the closure, and the switch plate is sealed with the auxiliary pipe when closed, preventing leakage at multiple nodes; moreover, the baffle is closed when the switch plate is open, with no "double opening" gap, and the sealing reliability far exceeds that of existing equipment.

[0024] 4. Precise automatic control and efficient and orderly feeding: The proximity switch accurately senses the action of the baffle, and the microcontroller with timer realizes the automated process of "baffle opening trigger - timing - switch opening - secondary timing - switch closing", avoiding human control errors, ensuring that the material falls into the crushing mechanism after the baffle is closed, preventing material retention and noise leakage, and improving recycling efficiency.

[0025] 5. Structural protection + sound insulation layering, ensuring both safety and durability: The switch plate buffer pad reduces collision noise and wear; the baffle sound insulation plate absorbs internal noise, forming a double protection of "sealing + sound insulation"; the rounded corners of the discharge tray prevent scratches and material accumulation, ensuring both operational safety and equipment lifespan. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of this utility model;

[0027] Figure 2 This is the front view of this utility model;

[0028] Figure 3 This is the utility model Figure 2 A cross-sectional view of the AA section;

[0029] Figure 4This is the utility model Figure 3 A magnified schematic diagram of the partial structure of B in the diagram;

[0030] Figure 5 This is the utility model Figure 3 A magnified schematic diagram of the structure of C in the middle;

[0031] The following components are labeled in the attached diagram: 1. Base; 2. Crushing mechanism; 3. Power mechanism; 4. Discharge hopper; 5. Air pump mechanism; 6. Feeding pipe; 7. Control mechanism; 8. Auxiliary pipe; 9. Discharge tray; 10. Baffle; 11. Switch plate; 12. Gear motor; 13. Proximity switch; 14. Buffer pad; 15. Permanent magnet strip; 16. Sealing gasket; 17. Sound insulation board. Detailed Implementation

[0032] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0033] like Figures 1 to 5 As shown, this utility model discloses a novel noise-reducing on-site recycling machine, including a base 1, a crushing mechanism 2 mounted on the top of the base 1, a power mechanism 3 mounted on the base 1, a discharge hopper 4 connected to the bottom of the crushing mechanism 2, an air pump mechanism 5 for assisting the discharge of material from the discharge hopper 4 installed inside the base 1, a feeding pipe 6 connected to the top of the crushing mechanism 2, and a control mechanism 7 mounted on the base 1. It also includes:

[0034] An auxiliary pipe 8 is inserted into the feeding pipe 6 at its discharge end. The outer wall of the auxiliary pipe 8 is sealed tightly against the inner wall of the feeding pipe 6. The feeding end of the auxiliary pipe 8 is provided with a vertical feeding port. A feeding tray 9 is installed at the feeding port of the auxiliary pipe 8. The size of the feeding groove inside the feeding tray 9 is smaller than the size of the feeding port.

[0035] Baffle 10 is hinged to the top of the feeding port. The baffle 10 is kept hanging down under the action of gravity. The baffle 10 is in close contact with the side wall of the feeding tray 9 facing the auxiliary tube 8. The top of the baffle 10 is slidably in close contact with the top of the feeding port through the connecting component.

[0036] The top of the switch plate 11 is hinged to the top of the inner wall of the feeding tube 6;

[0037] A geared motor 12 is installed on the outer wall of the feeding pipe 6, and the output end of the geared motor 12 is rotatably inserted into the feeding pipe 6. The output end of the geared motor 12 is concentrically connected to a hinge shaft of the switch plate 11. When the geared motor 12 controls the switch plate 11 to close, the switch plate 11 is sealed tightly against the side wall of the material drop end of the auxiliary pipe 8. The geared motor 12 is equipped with a control mechanism 7, and the geared motor 12 draws power from the control mechanism 7 of the machine-side recycling machine.

[0038] In this embodiment,

[0039] Base 1

[0040] Purpose: The supporting carrier for the entire equipment, used to install and fix core components such as the crushing mechanism 2, power mechanism 3, discharge hopper 4, and air pump mechanism 5;

[0041] Effect: Ensures the stability of equipment operation, prevents component displacement due to vibration, and provides basic support for the coordinated work of various mechanisms.

[0042] Crushing mechanism 2

[0043] Application: Core functional component used to crush plastic scraps (flakes, defective products, etc.) into fine particles for subsequent recycling and reuse;

[0044] Effect: It achieves "volume reduction" of scrap materials, provides crushing support for the "processing-recycling-reprocessing" closed loop, and is the core operating mechanism of the machine-side recycling machine.

[0045] Power mechanism 3

[0046] Application: To provide power for the operation of the crushing mechanism 2, typically including a motor and transmission components;

[0047] Effect: The high-speed rotation of the blades or hammers in the driving crushing mechanism 2 ensures that scraps can be effectively crushed. The stability of the power output directly affects the crushing efficiency and particle uniformity.

[0048] 4 discharge hoppers

[0049] Application: Temporary storage and conveying channel for crushed particles; one end is connected to the bottom of the crushing mechanism 2, and the other end is connected to the subsequent recycling and conveying system.

[0050] Effect: It guides the crushed particles to be discharged in an orderly manner, avoids the accumulation and blockage of particles in the crushing mechanism 2, and ensures the continuous operation of the crushing process.

[0051] Air pump mechanism 5

[0052] Application: Installed inside the base 1, and used in conjunction with the discharge hopper 4;

[0053] Effect: By using negative pressure or airflow to drive the crushed particles in the auxiliary discharge hopper 4 to be discharged quickly, it replaces the traditional mechanical conveying, reduces material friction and impact noise, and is one of the existing noise reduction methods.

[0054] Feed pipe 6

[0055] Application: The channel for feeding scrap materials into the crushing mechanism 2, with the top end connected to the outside and the bottom end connected to the top end of the crushing mechanism 2;

[0056] Effect: It provides guidance for manual or automatic feeding, preventing material spillage during feeding, and is also a key part of existing equipment where noise is easily leaked.

[0057] Machine-side recycling machine control mechanism 7

[0058] Application: The overall control center of the equipment, typically including control panels, relays, power modules, etc.

[0059] Effects: Controls the start and stop of the power mechanism 3 and the air pump mechanism 5, adjusts parameters such as crushing speed and discharge speed, and provides power and control signal interfaces for improved components (such as geared motor 12).

[0060] Auxiliary tube 8

[0061] Purpose: A transition component connecting the feeding pipe 6 and the feeding operation. The material drop end is inserted into the feeding pipe 6, and the feeding end is equipped with a vertical feeding port and a feeding tray 9.

[0062] Effect:

[0063] The outer wall is tightly sealed to the inner wall of the feed pipe 6, blocking noise leakage between the two.

[0064] The feeding tray 9 at the feeding end temporarily stores scrap materials and works with the baffle 10 to seal the feeding port;

[0065] A closed material channel is formed, consisting of "discharge tray 9 - feeding port - auxiliary pipe 8 - feeding pipe 6", to prevent noise from leaking directly from the feeding port.

[0066] baffle 10

[0067] Application: The "sealing door" of the feeding port is hinged to the top of the feeding port. Normally it hangs down and is close to the feeding tray 9. It can be opened when the material is pushed manually.

[0068] Effect:

[0069] When there is no material, it hangs down by gravity, and the connecting component seals the feeding port to prevent noise leakage from the crushing mechanism 2.

[0070] When manually pushing materials, it serves as an "active channel," and automatically resets and reseals after pushing, eliminating the need for frequent manual opening and closing of the shielding structure, thus balancing ease of operation and sealing.

[0071] Switchboard 11

[0072] Application: A "material gate" between auxiliary pipe 8 and feeding pipe 6, with its top end hinged to the inner wall of feeding pipe 6;

[0073] Effect:

[0074] When closed, it is tightly sealed against the side wall of the material drop end of the auxiliary pipe 8, preventing noise from the auxiliary pipe 8 from leaking into the feeding pipe 6.

[0075] When opened, the material in the auxiliary tube 8 is allowed to slide into the crushing mechanism 2, and the baffle 10 is reset and closed when opened to ensure that the feeding port is sealed throughout the process and to avoid noise leakage from the "double opening".

[0076] Gear motor 12

[0077] Application: The power drive component of the switch plate 11 is installed on the outer wall of the feed pipe 6, and the output end is concentric with the hinge shaft of the switch plate 11;

[0078] Effect:

[0079] It receives signals from the control mechanism 7 and drives the switch plate 11 to rotate precisely (open / close), replacing manual control and improving operating efficiency;

[0080] The output speed is stable, ensuring that the switch plate 11 can fit tightly with the material feeding end of the auxiliary tube 8 when it is closed, thus guaranteeing the reliability of the seal and avoiding collision noise caused by excessively fast switching action.

[0081] As a preferred embodiment of the above, the control mechanism 7 includes a proximity switch 13 and a microcontroller. The microcontroller is installed inside the control mechanism 7 and integrates a timer module. The microcontroller is electrically connected to the control mechanism 7 of the machine-side recycling machine. The geared motor 12 and the proximity switch 13 are both connected to the signal line of the microcontroller. The proximity switch 13 is installed on the side wall of the auxiliary tube 8 near the feeding port. The sensing end of the proximity switch 13 faces into the auxiliary tube 8 and is adjacent to the baffle 10.

[0082] In this embodiment,

[0083] Proximity switch 13

[0084] Application: The "sensor" for the state of baffle 10 is installed on the side wall of the auxiliary pipe 8 near the feed port, with the sensing end close to baffle 10;

[0085] Effect: It accurately detects whether the baffle 10 is manually opened (the displacement of the baffle 10 during material pushing triggers the sensor) and transmits the "baffle 10 open" signal to the microcontroller in real time, providing the trigger condition for the subsequent actions of the switch board 11 and avoiding human error or signal delay.

[0086] microcontroller

[0087] Application: The "core brain" of the control mechanism 7, installed inside the control mechanism 7 of the machine-side recycling machine, integrates a timer module, and the microcontroller is selected according to actual needs, such as an STC89C52RC microcontroller or an AVR microcontroller.

[0088] Effect:

[0089] It is electrically connected to the control mechanism 7 of the machine-side recycling machine, drawing power and coordinating with the overall operation of the equipment;

[0090] After receiving the signal from proximity switch 13, the first stage timer is started (for manual material pushing and baffle 10 reset);

[0091] When the first stage timer ends, an "open" signal is sent to the geared motor 12, and the second stage timer is started at the same time (to allow the material to fall completely into the crushing mechanism 2).

[0092] When the second stage timing ends, a "reset" signal is sent to control the geared motor 12 to turn off the switch plate 11, realizing the automation of "sensing-timing-driving" and ensuring the orderly connection between sealing and feeding.

[0093] As a preferred embodiment of the above embodiment, a buffer pad 14 is installed on the side wall of the switch plate 11 facing the baffle 10;

[0094] In this embodiment,

[0095] Buffer pad 14

[0096] Application: Installed on the side wall of the switch plate 11 facing the material feeding end of the auxiliary tube 8, serving as a "buffer medium" when the switch plate 11 is closed;

[0097] Effect:

[0098] Reduce the rigid collision between the switch plate 11 and the material dropping end of the auxiliary tube 8 when the switch plate 11 is closed, reduce the additional noise generated by the collision, and supplement the noise reduction effect;

[0099] To avoid direct friction between the metal switch plate 11 and the auxiliary tube 8, reduce component wear, and extend the service life of the switch plate 11 and the auxiliary tube 8.

[0100] As a preferred embodiment of the above embodiment, the bottom end of the side wall of the baffle 10 facing the feeding tray 9 is provided with a slot, and a permanent magnet strip 15 is installed in the slot. The baffle 10 is magnetically attracted to the feeding tray 9 by the permanent magnet strip 15.

[0101] In this embodiment,

[0102] Permanent magnet strip 15

[0103] Application: Installed in the bottom slot of the baffle 10 facing the side wall of the feeding tray 9, to provide "magnetic sealing force" for the baffle 10;

[0104] Effect: Enhances the tightness of the fit between the baffle 10 and the feeding tray 9, prevents the vibration during equipment operation from causing tiny gaps between the baffle 10 and the feeding tray 9, further blocks noise leakage from the feeding port, and ensures that the baffle 10 can maintain a seal without manual pressing after reset.

[0105] As a preferred embodiment of the above, the connecting component is configured as a sealing gasket 16, and the top end of the baffle 10 is provided with an arc-shaped groove. The sealing gasket 16 is adhered and installed in the arc-shaped groove. The sealing gasket 16 is used to block and seal the gap between the top end of the baffle 10 and the top end of the inner side wall of the auxiliary tube 8.

[0106] In this embodiment,

[0107] Sealing gasket 16

[0108] Application: Adhesive to the arc-shaped groove at the top of the baffle 10, serving as a "gap filler" between the baffle 10 and the top of the feeding port;

[0109] Effect: When the filling baffle 10 is drooping and closed, the tiny gap between its top and the top of the feeding port achieves "blocking and sealing", preventing the high-frequency noise of the crushing mechanism 2 from leaking out from the gap, strengthening the overall sealing effect of the feeding port, and supplementing the basic sealing function of the baffle 10.

[0110] As a preferred embodiment of the above embodiment, a sound insulation plate 17 is adhered to the side wall of the baffle 10 facing the switch plate 11;

[0111] In this embodiment,

[0112] Sound insulation panel 17

[0113] Application: Adhesive to the side wall of baffle 10 facing switch plate 11 to add a "sound insulation layer" to baffle 10;

[0114] Effect:

[0115] The noise transmitted from the crushing mechanism 2 to the auxiliary pipe 8 is absorbed, reducing the amount of noise penetrating the baffle 10;

[0116] Together with the physical sealing structure of the auxiliary pipe 8, baffle 10, and switch plate 11, it forms a dual guarantee of "sealing + sound insulation", further reducing the intensity of noise leakage and improving the overall noise reduction capability of the equipment.

[0117] As a preferred embodiment of the above embodiment, the bottom end and the edge of the side wall of the feeding tray 9 are both provided with a rounded corner structure;

[0118] In this embodiment,

[0119] Feeding tray with 9 rounded corners

[0120] Application: Structural optimization of the bottom and sidewall edges of the feeding tray 9, with sharp edges being rounded;

[0121] Effect:

[0122] When manually feeding or pushing materials onto or onto the feeding tray 9, operators should be protected from being cut by sharp edges, thus improving operational safety.

[0123] The working principle of this utility model is as follows:

[0124] During normal operation, the baffle 10 adheres tightly to the feeding tray 9 by gravity and the permanent magnet strip 15, sealing the feeding port; the switch plate 11 closes under the control of the geared motor 12, sealing the material discharge end of the auxiliary pipe 8, thus creating a double seal to prevent noise leakage from the crushing mechanism 2. During manual feeding:

[0125] 1. Manually push the baffle 10 to push the scrap material on the feeding tray 9 into the auxiliary tube 8;

[0126] 2. When the baffle 10 is pushed, the proximity switch 13 detects the displacement of the baffle 10 and sends a signal to the microcontroller;

[0127] 3. After receiving the signal, the microcontroller starts the first stage timer. After the manual feeding is completed, the baffle 10 is released and the baffle 10 is reset and closed under the action of gravity and permanent magnet strip 15.

[0128] 4. When the first stage of timing ends (at this time, the baffle 10 is completely closed), the microcontroller controls the geared motor 12 to run, which drives the switch plate 11 to open, and the material in the auxiliary tube 8 falls into the crushing mechanism 2.

[0129] 5. When switch board 11 is turned on, the microcontroller starts the second-stage timer;

[0130] 6. When the second stage timing ends (ensuring that the material has completely fallen into the crushing mechanism 2), the microcontroller controls the geared motor 12 to reverse, driving the switch plate 11 to close, restoring the sealing state with the material discharge end of the auxiliary pipe 8, and completing one feeding-discharging cycle.

[0131] Throughout the process, the feeding port is only briefly opened when the material is manually pushed, and remains sealed at other times. When the switch plate 11 is opened to release the material, the baffle 10 is already closed, so there is no noise leakage channel throughout the process, which greatly improves the noise reduction effect.

[0132] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A novel noise-reducing on-site recycling machine, comprising a base (1), a crushing mechanism (2) mounted on the top of the base (1), a power mechanism (3) mounted on the base (1) for the crushing mechanism (2), a discharge hopper (4) connected to the bottom of the crushing mechanism (2), an air pump mechanism (5) for discharging material from the auxiliary discharge hopper (4) installed inside the base (1), a feeding pipe (6) connected to the top of the crushing mechanism (2), and a control mechanism (7) for the on-site recycling machine mounted on the base (1), characterized in that, Also includes: An auxiliary tube (8) is inserted into the feeding tube (6) at its discharge end. The outer wall of the auxiliary tube (8) is sealed tightly against the inner wall of the feeding tube (6). The feeding end of the auxiliary tube (8) is provided with a vertical feeding port. A feeding tray (9) is installed at the feeding port of the auxiliary tube (8). The size of the feeding groove inside the feeding tray (9) is smaller than the size of the feeding port. Baffle (10), the baffle (10) is hinged to the top of the feeding port, the baffle (10) is kept in a downward state under the action of gravity, and the baffle (10) is in close contact with the side wall of the feeding tray (9) facing the auxiliary tube (8), and the top of the baffle (10) is slidably in close contact with the top of the feeding port through the connecting component. Switch plate (11), the top of the switch plate (11) is hinged to the top of the inner wall of the feeding tube (6); A geared motor (12) is installed on the outer wall of the feeding pipe (6), and the output end of the geared motor (12) is inserted into the feeding pipe (6) by rotation. The output end of the geared motor (12) is concentrically connected to a hinge shaft of the switch plate (11). When the geared motor (12) controls the switch plate (11) to close, the switch plate (11) is sealed tightly against the side wall of the material drop end of the auxiliary pipe (8). The geared motor (12) is equipped with a control mechanism (7). The geared motor (12) is powered by the control mechanism (7) of the machine-side recycling machine.

2. The novel noise-reducing on-site recycling machine as described in claim 1, characterized in that, The control mechanism (7) includes a proximity switch (13) and a microcontroller. The microcontroller is installed inside the control mechanism (7) and has a timer module integrated inside. The microcontroller is electrically connected to the control mechanism (7) of the machine-side recycling machine. The geared motor (12) and the proximity switch (13) are both connected to the signal line of the microcontroller. The proximity switch (13) is installed on the side wall of the auxiliary tube (8) near the feeding port. The sensing end of the proximity switch (13) faces into the auxiliary tube (8) and is close to the baffle (10).

3. The novel noise-reducing on-site recycling machine as described in claim 1, characterized in that, A buffer pad (14) is installed on the side wall of the switch plate (11) facing the baffle (10).

4. The novel noise-reducing on-site recycling machine as described in claim 1, characterized in that, The bottom end of the side wall of the baffle (10) facing the feeding tray (9) is provided with a slot, and a permanent magnet strip (15) is installed in the slot. The baffle (10) is magnetically attracted to the feeding tray (9) by the permanent magnet strip (15).

5. A novel noise-reducing on-site recycling machine as described in claim 1, characterized in that, The connecting component is configured as a sealing gasket (16), and the top of the baffle (10) is provided with an arc groove. The sealing gasket (16) is adhered and installed in the arc groove. The sealing gasket (16) is used to block and seal the gap between the top of the baffle (10) and the top of the inner wall of the auxiliary tube (8).

6. A novel noise-reducing on-site recycling machine as described in claim 1, characterized in that, A sound insulation board (17) is adhered to the side wall of the baffle (10) facing the switch plate (11).

7. A novel noise-reducing on-site recycling machine as described in claim 1, characterized in that, The bottom and sidewall edges of the feeding tray (9) are both rounded.

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