Recycled plastic pelletizing and packaging equipment

Abstract

The invention discloses recycled plastic pelletizing and packaging equipment, and relates to the technical field of plastic pelletizing, and the recycled plastic pelletizing and packaging equipment comprises a pelletizing module and a packaging module; the granulation module comprises a screw extruder, a cooling mechanism and a granulator, and a discharge pipe is arranged at one end of the granulator; two groups of granulation modules are symmetrically arranged; the packaging module comprises two sets of collecting hoppers, and each set of collecting hoppers is arranged at the bottom of the discharging pipe on the corresponding side. Discharge pipes are arranged at the bottoms of the collection hoppers; the packaging module further comprises two sets of metering cylinders which are symmetrically arranged, and feeding pipes used for being communicated with the discharging pipes are arranged on the metering cylinders. A sealing plate is arranged at the bottom of the discharging pipe in a sliding manner and is connected with an elastic mechanism arranged on one side of the collecting hopper; the packaging module further comprises an adjusting mechanism and a discharging mechanism, the adjusting mechanism drives the metering cylinders on the two sides to move in a reciprocating mode, plastic particles in the collecting hoppers on the two sides can be equivalently discharged, subsequent packaging treatment is facilitated, and the production efficiency is higher.

Description

Technical Field

[0001] The invention relates to the technical field of plastic granulation, and in particular to recycled plastic granulation and packaging equipment. Background Art

[0002] Plastic granulation is a process of plastic mechanical processing. Waste plastics are heated and melted to make plastic granules for secondary use as raw materials for plastic products. Plastic granulators are usually used for granulation.

[0003] A plastic pelletizer usually includes an extrusion system, a transmission system, and a heating and cooling system. The waste plastic is first heated to melt it, and the molten plastic is transmitted to the extrusion system through the transmission system. The molten plastic is cooled before extrusion to quickly form it. After passing through the extrusion system, the extruded plastic is cut to form plastic pellets that can be reused, such as a pelletizing device disclosed in the patent document with announcement number CN116690838B.

[0004] In the prior art, recycled plastics usually need to be loaded into packaging containers in the same amount after pelletizing. Currently, weighing is usually used for measurement. First, the packaging container is placed on a weighing machine, and then the discharge pipe of the pelletizer is moved to the packaging container. The solenoid valve between the discharge pipes is opened to allow the plastic particles to be discharged into the packaging container. When the plastic particles in the packaging container reach a preset weight, the solenoid valve is closed. However, this method is not suitable for batch processing and packaging of plastic particles, and the process is relatively cumbersome. At the same time, when the plastic particles in the packaging container reach a preset weight, due to the height difference between the discharge pipe and the packaging container, even if the discharge pipe is closed, the plastic particles falling between the discharge pipe and the packaging container will still be discharged into the packaging container, thereby causing the actual content of the plastic particles to exceed the preset value, and the measurement is not accurate enough. Summary of the invention

[0005] The purpose of the present invention is to provide a recycled plastic pelletizing and packaging device to solve the following technical problems:

[0006] 1) The existing plastic granule packaging has low efficiency; 2) The existing plastic granule packaging has poor metering accuracy.

[0007] The purpose of the present invention can be achieved through the following technical solutions:

[0008] A recycled plastic pelletizing and packaging device comprises a pelletizing module and a packaging module; the pelletizing module comprises a screw extruder, a cooling mechanism and a pelletizer, a discharge pipe is arranged at one end of the pelletizer; two groups of pelletizing modules are symmetrically arranged;

[0009] The packaging module includes two groups of collecting hoppers, each group of collecting hoppers is arranged at the bottom of the discharge pipe on the corresponding side; a discharge pipe is arranged at the bottom of the collecting hopper; the packaging module also includes two groups of symmetrically arranged metering cylinders, and the metering cylinders are provided with feed pipes for communicating with the discharge pipes; a sealing plate is slidably arranged at the bottom of the discharge pipe, and the sealing plate is connected to an elastic mechanism arranged on one side of the collecting hopper;

[0010] The packaging module also includes an adjusting mechanism and a discharging mechanism. The adjusting mechanism is used to drive the metering cylinders on both sides to reciprocate at the bottom of the two groups of collecting hoppers, and the discharging mechanism is used to discharge the plastic particles discharged into the metering cylinders.

[0011] Preferably, arc-shaped grooves are provided on the adjacent sides of the two groups of sealing plates.

[0012] Preferably, the packaging module further comprises a conveying mechanism arranged at the bottom of the two groups of collecting hoppers, and a plurality of groups of packaging containers are arranged at intervals on the conveying mechanism.

[0013] Preferably, a carrying plate is arranged in the metering cylinder, and the carrying plate slides in contact with the cylinder wall and encloses a metering cavity for storing materials. A discharge groove is opened at the central end of the carrying plate, and the bottom of the discharge groove is connected with a discharge pipe. The discharge pipe extends through the metering cylinder to the bottom of the cylinder. A sealing seat is slidably embedded in the discharge groove, and the sealing seat is connected to a lifting mechanism that drives it to rise and fall.

[0014] Preferably, the upper surface of the sealing seat is configured as an arc-shaped structure, and the upper surface of the carrying plate is configured as a sloped structure.

[0015] Preferably, the lifting mechanism comprises a lifting rod fixedly arranged at the bottom of the sealing seat, and guide wheels are rotatably arranged on both sides of the bottom of the lifting rod;

[0016] The lifting mechanism further comprises two groups of trapezoidal guide frames symmetrically arranged in the middle of the two groups of collecting hoppers, the two groups of trapezoidal guide frames are fixed to each other, and both sides of each trapezoidal guide frame are arranged as inclined frames.

[0017] Preferably, an annular protrusion is fixedly arranged on the groove wall of the discharge groove.

[0018] Preferably, a limit frame is fixedly arranged between the two groups of metering cylinders, an adjustment frame is fixedly arranged on one side of the feeding tube, and the adjustment frames on both sides are fixed by positioning frames;

[0019] Wherein, a screw rod is spirally arranged in the limiting frame, and the bottom of the screw rod is rotatably connected to the adjusting frame.

[0020] Preferably, the trapezoidal guide frame on one side is fixed to the U-shaped plate, a slide is slidably arranged in the U-shaped plate, and the slide is fixed to the positioning frame through the U-shaped frame, wherein both ends of the U-shaped plate are slidably connected to limit rods fixedly arranged on both sides of the conveying mechanism.

[0021] Preferably, the collecting hoppers on both sides are fixed to the conveying mechanism through mounting frames respectively, and the elastic mechanism includes a sleeve fixedly arranged on the mounting frame, and the other end of the sleeve is slidably plugged with a telescopic rod fixed to the sealing plate, and a telescopic spring is provided on the telescopic rod.

[0022] Beneficial effects of the present invention:

[0023] (1) The present invention drives the metering cylinders on both sides to reciprocate through the adjustment mechanism, so that the plastic particles in the collecting hoppers on both sides can be discharged in equal amounts, so as to facilitate subsequent packaging and processing, and the production efficiency is higher;

[0024] (2) The present invention provides a sealing plate at the bottom of the discharge pipe. Due to the limited storage space in the metering cylinder, when the metering cylinder is full, no more plastic particles will be discharged into the cylinder. The feed pipe and the discharge pipe are slidably fitted, and there is no distance difference between the two. Therefore, there will be no state where some plastic particles are in the air and have not fallen. When the feed pipe and the discharge pipe are separated, the sealing plate can also seal the discharge pipe in time to avoid leakage of some plastic particles and cause waste.

[0025] (3) When the feed pipe of the present invention contacts the sealing plate, the feed pipe can be embedded in the arc groove. Therefore, when the feed pipe pushes the sealing plate to deviate to one side, some plastic particles are prevented from leaking from the connection gap between the feed pipe and the sealing plate, and the sealing performance is better.

[0026] (4) In the present invention, when the adjusting mechanism drives a group of metering cylinders to move to a position between two groups of collecting hoppers, the conveying mechanism can adjust a group of packaging containers to move to directly below the group of metering cylinders, and the discharging mechanism can discharge the plastic particles into the packaging containers. Then the conveying mechanism conveys the group of packaging containers to the next packaging process for packaging. The present invention can achieve the effect of quantitatively conveying plastic particles to each packaging container, and the metering accuracy is higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The present invention will be further described below in conjunction with the accompanying drawings.

[0028] Figure 1 It is a structural schematic diagram of a recycled plastic pelletizing and packaging device of the present invention;

[0029] Figure 2 This is a schematic diagram of the structure of a packaging module in a recycled plastic pelletizing and packaging device of the present invention. Figure 1 ;

[0030] Figure 3 This is a schematic diagram of the structure of a packaging module in a recycled plastic pelletizing and packaging device of the present invention. Figure 2 ;

[0031] Figure 4 It is a structural schematic diagram of a metering cylinder in a recycled plastic pelletizing and packaging device of the present invention;

[0032] Figure 5 It is a schematic structural diagram of a cross-section of a collecting hopper in a recycled plastic pelletizing and packaging device of the present invention;

[0033] Figure 6 The present invention is a schematic structural diagram of a cross-section of a metering cylinder in a recycled plastic pelletizing and packaging device.

[0034] In the figure: 1, screw extruder; 2, collecting hopper; 3, conveying mechanism; 4, metering cylinder; 5, driving box; 6, ladder guide frame; 101, cooling mechanism; 102, pelletizer; 103, discharge pipe; 201, mounting frame; 202, sleeve; 203, telescopic rod; 204, telescopic spring; 205, discharge pipe; 206, sealing plate; 207, arc groove; 301, packaging container; 401, feed pipe ; 402, feed pipe; 403, lifting rod; 404, guide wheel; 405, adjustment frame; 406, positioning frame; 407, limit frame; 408, screw; 501, U-shaped plate; 502, limit rod; 503, support rod; 504, slide seat; 505, U-shaped frame; 601, tilting frame; 602, carrying plate; 603, metering chamber; 604, discharge trough; 605, sealing seat; 606, annular protrusion. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] Example 1

[0037] See also Figure 1 As shown, the present invention is a recycled plastic pelletizing and packaging device, comprising a pelletizing module and a packaging module;

[0038] The granulation module includes a screw extruder 1, a cooling mechanism 101 and a pelletizer 102. A discharge pipe 103 is provided at one end of the pelletizer 102 for discharging the pelletized plastic. Specifically, in the present embodiment, the molten plastic is first extruded and formed by the screw extruder 1. The formed plastic strips are cooled by the cooling mechanism 101 and then enter the pelletizer 102. The pelletizer 102 pelletizes the plastic strips to form plastic pellets. Finally, the plastic pellets are blown out from the discharge pipe 103 by a blower arranged in the pelletizer 102.

[0039] It should be noted that the granulation module of this embodiment is a prior art, and its specific structure is not described in detail.

[0040] In this embodiment, two groups of granulation modules are arranged in parallel and symmetrically, wherein the packaging module includes two groups of collecting hoppers 2, and each group of collecting hoppers 2 is arranged at the bottom of the discharge pipe 103 on the corresponding side; specifically, the pelletized plastic is discharged into the collecting hopper 2 through the discharge pipe 103 for temporary storage.

[0041] See also Figure 2 , a discharge pipe 205 is provided at the bottom of the collecting hopper 2; the packaging module further comprises two groups of symmetrically arranged metering cylinders 4, on which a feed pipe 401 for communicating with the discharge pipe 205 is provided; specifically, the inner diameter and outer diameter of the discharge pipe 205 and the feed pipe 401 are equal;

[0042] A sealing plate 206 is slidably arranged at the bottom of the discharge pipe 205, and the sealing plate 206 is connected to an elastic mechanism arranged on one side of the collecting hopper 2; specifically, in the initial state, the sealing plate 206 is located at the bottom of the discharge pipe 205, which has the effect of sealing the discharge pipe 205, so that the plastic particles cannot be discharged from the discharge pipe 205.

[0043] The packaging module also includes an adjustment mechanism and a discharge mechanism. The adjustment mechanism is used to drive the metering cylinders 4 on both sides to reciprocate at the bottom of the two sets of collecting hoppers 2. The discharge mechanism is used to discharge the plastic particles discharged into the metering cylinders 4.

[0044] It should be noted that, in this embodiment, the two groups of metering cylinders 4 are driven to move toward the collecting hopper 2 on one side through the adjusting mechanism. During the movement, the feed pipe 401 on one side of the metering cylinder 4 pushes the sealing plate 206 at the bottom of the discharge pipe 205 to slide toward one side. At this time, the elastic mechanism contracts to generate elastic force. As the feed pipe 401 is connected with the discharge pipe 205, the plastic particles in the collecting hopper 2 can be discharged into the metering cylinder 4 along the discharge pipe 205 and the feed pipe 401 under the action of gravity until the feed pipe 401 moves to a coaxial state with the discharge pipe 205 and stops. At this time, the metering cylinder 4 on the other side is just in the middle position of the two groups of collecting hoppers 2. When the plastic particles fill the metering cylinder 4, the plastic particles in the collecting hopper 2 The particles will no longer continue to be discharged into the metering cylinder 4, and then the adjusting mechanism drives the two groups of metering cylinders 4 to move toward the other side of the collecting hopper 2. As the feed pipe 401 and the discharge pipe 205 are gradually separated, the elastic mechanism can drive the sealing plate 206 to reset to seal the discharge pipe 205 again to prevent the discharge of plastic particles. When the metering cylinder 4 on the other side moves to just below the collecting hopper 2 on the other side, the metering cylinder 4 on this side also moves to the middle position of the two groups of collecting hoppers 2. At this time, the plastic particles in the metering cylinder 4 are discharged through the discharging mechanism. In this embodiment, the metering cylinders 4 on both sides are driven to reciprocate by the adjusting mechanism, so that the plastic particles in the collecting hoppers 2 on both sides can be discharged equally, so as to facilitate subsequent packaging processing and have higher production efficiency.

[0045] Correspondingly, in this embodiment, a sealing plate 206 is provided at the bottom of the discharge pipe 205. Due to the limitation of the storage space in the metering cylinder 4, when the metering cylinder 4 is full, no more plastic particles will be discharged into the cylinder, and the feed pipe 401 and the discharge pipe 205 are slidably fitted with each other, and there is no distance difference between the two. Therefore, there will be no state in which some plastic particles are in the air without falling. When the feed pipe 401 is separated from the discharge pipe 205, the sealing plate 206 can also seal the discharge pipe 205 in time to avoid leakage of some plastic particles and cause waste.

[0046] Example 2

[0047] Based on Example 1, please refer to Figure 3 , arc grooves 207 are provided on the sides where the two sets of sealing plates 206 are close to each other; specifically, when the feed pipe 401 contacts the sealing plate 206, the feed pipe 401 can be embedded in the arc groove 207, so when the feed pipe 401 pushes the sealing plate 206 to deviate to one side, some plastic particles are prevented from leaking from the connection gap between the feed pipe 401 and the sealing plate 206, and the sealing performance is better.

[0048] In this embodiment, please refer to Figure 1 The packaging module also includes a conveying mechanism 3 arranged at the bottom of the two groups of collecting hoppers 2, and a plurality of groups of packaging containers 301 are arranged at intervals on the conveying mechanism 3; specifically, in this embodiment, an empty packaging container 301 is placed on the conveying mechanism 3 manually or by a robot and conveyed toward the packaging end, and when the adjustment mechanism drives a group of metering cylinders 4 to move to a position between the two groups of collecting hoppers 2, the conveying mechanism 3 can adjust a group of packaging containers 301 to move to the position directly below the group of metering cylinders 4, and the discharge mechanism can discharge the plastic particles into the packaging container 301, and then the conveying mechanism 3 conveys the group of packaging containers 301 to the next packaging process for packaging. This embodiment can achieve the effect of quantitatively conveying plastic particles to each packaging container 301, and the metering accuracy is higher;

[0049] In addition, an infrared sensor may be provided on the conveying mechanism 3 to monitor whether the packaging container 301 is conveyed to the position directly below the metering cylinder 4 .

[0050] As a further solution of this embodiment, please refer to Figure 5-Figure 6, a carrying plate 602 is arranged in the metering cylinder 4, and the carrying plate 602 slides and fits with the cylinder wall to enclose a metering cavity 603 for storing materials, and a discharge groove 604 is opened at the central end of the carrying plate 602, and the bottom of the discharge groove 604 is communicated with the discharge pipe 402, and the discharge pipe 402 extends to the bottom of the cylinder through the metering cylinder 4, and a sealing seat 605 is slidably embedded in the discharge groove 604, and the sealing seat 605 is connected to the lifting mechanism that drives it to rise and fall; it can be explained that in the initial state, the lifting mechanism drives the sealing seat 605 to be in a state of sealing the discharge groove 604, and the pelletized plastic can be discharged into the metering cavity 603 through the feeding pipe 401, and when the metering cylinder 4 moves to the middle position of the two groups of collecting hoppers 2, the sealing seat 605 is driven by the lifting mechanism to rise to a state separated from the discharge groove 604, so that the material in the metering cavity 603 can be discharged through the discharge groove 604 and the discharge pipe 402, and after the discharge is completed, the lifting mechanism drives the sealing seat 605 to reset.

[0051] In order to prevent some materials from staying on the sealing seat 605 and the carrier plate 602, in this embodiment, the upper surface of the sealing seat 605 is configured as an arc-shaped structure, and the upper surface of the carrier plate 602 is configured as a sloped structure;

[0052] See also Figure 2 and Figure 6 The lifting mechanism includes a lifting rod 403 fixedly arranged at the bottom of the sealing seat 605, and guide wheels 404 are rotatably arranged on both sides of the bottom of the lifting rod 403, wherein the lifting mechanism also includes two groups of trapezoidal guide frames 6 symmetrically arranged at the middle position of the two groups of collecting hoppers 2, the two groups of trapezoidal guide frames 6 are fixed, and the two sides of each trapezoidal guide frame 6 are set as inclined frames 601; it can be explained that when the metering drum 4 is driven to move to the middle position of the two groups of collecting hoppers 2, the guide wheel 404 first abuts against the inclined frame 601, and is driven to rise under the limiting action of the inclined frame 601, and the guide wheel 404 can then drive the sealing seat 605 to rise, so that it is separated from the discharge trough 604.

[0053] In order to prevent the sealing seat 605 from sliding from the discharge groove 604 to the bottom, in this embodiment, an annular protrusion 606 is fixedly arranged on the groove wall of the discharge groove 604; specifically, when the sealing seat 605 is embedded in the discharge groove 604, the annular protrusion 606 can limit the sealing seat 605, and the stability is higher.

[0054] Furthermore, for packaging containers 301 of different volumes, the amount of plastic particles stored therein is also different. Figure 2-Figure 3A limit frame 407 is fixedly arranged between the two groups of metering cylinders 4, an adjusting frame 405 is fixedly arranged on one side of the discharge tube 402, and the adjusting frames 405 on both sides are fixed by a positioning frame 406, wherein a screw 408 is spirally arranged in the limit frame 407, and the bottom of the screw 408 is rotatably connected to the adjusting frame 405; it can be explained that in this embodiment, the positioning frame 406 can be driven to rise and fall by rotating the screw 408, and the positioning frame 406 drives the discharge tube 402 and the supporting plate 602 to rise and fall through the adjusting frame 405, so that the volume of the metering chamber 603 can be adjusted, so that the storage capacity of the metering chamber 603 is equal to the storage capacity of the packaging container 301. In this embodiment, the storage capacity of the metering cylinder 4 can be adjusted without replacing it, and the operation is very convenient, which improves efficiency.

[0055] When adjusting the lifting of the carrier plate 602, in order to make the ladder guide frame 6 lift synchronously, in this embodiment, refer to Figure 2-Figure 4 , a trapezoidal guide frame 6 on one side is fixed to the U-shaped plate 501, a slide 504 is slidably arranged in the U-shaped plate 501, and the slide 504 is fixed to the positioning frame 406 through the U-shaped frame 505, wherein the two ends of the U-shaped plate 501 are slidably connected to the limit rods 502 fixedly arranged on both sides of the conveying mechanism 3; specifically, when the positioning frame 406 is raised or lowered, the U-shaped plate 501 can be synchronously driven to be raised or lowered by the U-shaped frame 505 and the slide 504, and accordingly, the slide 504 can slide in the U-shaped plate 501, so that when the adjusting mechanism drives the metering cylinders 4 on both sides to move horizontally, the slide 504 can also stably slide in the U-shaped plate 501, and the U-shaped plate 501 in this embodiment can only be raised or lowered on the limit rods 502 to achieve the effect of positioning the U-shaped plate 501.

[0056] In this embodiment, please refer to Figure 2-Figure 4 The adjustment mechanism includes a driving box 5, the two ends of the bottom of the driving box 5 are fixed to the support rods 503 fixedly arranged on both sides of the conveying mechanism 3, and the driving end of the driving box 5 is fixed to the limit frame 407; specifically, a synchronous belt mechanism or a gear rack transmission mechanism is arranged in the driving box 5, which is not limited to realize the reciprocating motion of the driving limit frame 407 along a straight line.

[0057] See also Figure 2The collecting hoppers 2 on both sides are respectively fixed to the conveying mechanism 3 through the mounting frame 201, and the elastic mechanism includes a sleeve 202 fixedly arranged on the mounting frame 201, and the other end of the sleeve 202 is slidably plugged with a telescopic rod 203 fixed to the sealing plate 206, and the telescopic spring 204 is provided on the telescopic rod 203; specifically, one end of the telescopic spring 204 is fixed to the sealing plate 206, and the other end is fixed to the sleeve 202; it can be explained that when the sealing plate 206 slides at the bottom of the discharge pipe 205, the sealing plate 206 pushes the telescopic rod 203 to slide on one side of the sleeve 202, thereby compressing the telescopic spring 204 and generating elastic force, so as to drive the sealing plate 206 to reset under the action of the elastic force later.

[0058] A packaging method for recycled plastic pelletizing packaging equipment comprises the following steps:

[0059] S1. Please refer to Figure 1 The screw extruder 1 extrudes the molten plastic, and the formed plastic strips are cooled by the cooling mechanism 101 and then enter the pelletizer 102. The pelletizer 102 pelletizes the plastic strips to form plastic particles, and the blower blows the plastic particles out from the discharge pipe 103 to the collecting hopper 2 for temporary storage;

[0060] S2. Please refer to Figure 2-Figure 3 , the regulating mechanism drives the two groups of metering cylinders 4 to move toward the collecting hopper 2 on one side. During the movement, the feed pipe 401 on one side of the metering cylinder 4 pushes the sealing plate 206 at the bottom of the discharge pipe 205 to slide toward one side, and the plastic particles in the collecting hopper 2 are discharged into the metering cylinder 4 along the discharge pipe 205 and the feed pipe 401 under the action of gravity. At this time, the metering cylinder 4 on the other side is in the middle position of the two groups of collecting hoppers 2;

[0061] S3, after the plastic particles fill the metering cylinder 4, the regulating mechanism drives the two groups of metering cylinders 4 to move toward the other side of the collecting hopper 2, and as the feed pipe 401 and the discharge pipe 205 gradually separate, the elastic mechanism can drive the sealing plate 206 to reset;

[0062] S4, when the metering cylinder 4 on the other side moves to the position directly below the collecting hopper 2 on the other side, the metering cylinder 4 on this side also moves to the middle position between the two groups of collecting hoppers 2, and the discharging mechanism discharges the plastic particles in the metering cylinder 4.

[0063] In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, and a specific direction structure and operation, and therefore, cannot be understood as a limitation on the present invention. In addition, "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0064] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", etc. should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0065] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A recycled plastic pelletizing and packaging device, comprising a pelletizing module and a packaging module; the pelletizing module comprises a screw extruder (1), a cooling mechanism (101) and a pelletizer (102), a discharge pipe (103) being arranged at one end of the pelletizer (102); two groups of pelletizing modules are symmetrically arranged; It is characterized in that The packaging module comprises two groups of collecting hoppers (2), each group of collecting hoppers (2) is arranged at the bottom of the discharge pipe (103) on the corresponding side; a discharge pipe (205) is arranged at the bottom of the collecting hopper (2); the packaging module also comprises two groups of symmetrically arranged metering cylinders (4), and a feed pipe (401) for connecting with the discharge pipe (205) is arranged on the metering cylinder (4); a sealing plate (206) is slidably arranged at the bottom of the discharge pipe (205), and the sealing plate (206) is connected to an elastic mechanism arranged at one side of the collecting hopper (2); The packaging module also includes an adjustment mechanism and a discharge mechanism. The adjustment mechanism is used to drive the metering cylinders (4) on both sides to reciprocate at the bottom of the two groups of collecting hoppers (2). The discharge mechanism is used to discharge the plastic particles discharged into the metering cylinders (4).

2. A recycled plastic pelletizing and packaging device according to claim 1, characterized in that: The two sets of sealing plates (206) are each provided with an arc-shaped groove (207) on one side thereof that is close to the other.

3. A recycled plastic pelletizing and packaging device according to claim 1, characterized in that: The packaging module also includes a conveying mechanism (3) arranged at the bottom of the two groups of collecting hoppers (2), and a plurality of groups of packaging containers (301) are arranged at intervals on the conveying mechanism (3).

4. A recycled plastic pelletizing and packaging device according to claim 1, characterized in that: The metering cylinder (4) is provided with a carrier plate (602), which is slidably attached to the cylinder wall and encloses a metering cavity (603) for storing materials. A discharge groove (604) is provided at the central end of the carrier plate (602), and the bottom of the discharge groove (604) is connected to a discharge pipe (402). The discharge pipe (402) passes through the metering cylinder (4) and extends to the bottom of the cylinder. A sealing seat (605) is slidably embedded in the discharge groove (604), and the sealing seat (605) is connected to a lifting mechanism that drives it to rise and fall.

5. A recycled plastic pelletizing and packaging device according to claim 4, characterized in that: The upper surface of the sealing seat (605) is configured as an arc-shaped structure, and the upper surface of the carrying plate (602) is configured as a sloped structure.

6. A recycled plastic pelletizing and packaging device according to claim 4, characterized in that: The lifting mechanism comprises a lifting rod (403) fixedly arranged at the bottom of the sealing seat (605), and guide wheels (404) are rotatably arranged on both sides of the bottom of the lifting rod (403); The lifting mechanism further comprises two groups of ladder-shaped guide frames (6) symmetrically arranged in the middle of the two groups of collecting hoppers (2); the two groups of ladder-shaped guide frames (6) are fixed to each other, and both sides of each ladder-shaped guide frame (6) are arranged as inclined frames (601).

7. The recycled plastic pelletizing and packaging equipment according to claim 4, characterized in that: An annular protrusion (606) is fixedly arranged on the groove wall of the discharge groove (604).

8. The recycled plastic pelletizing and packaging equipment according to claim 6, characterized in that: A limiting frame (407) is fixedly arranged between the two groups of metering cylinders (4), an adjusting frame (405) is fixedly arranged on one side of the feeding tube (402), and the adjusting frames (405) on both sides are fixed by positioning frames (406); Wherein, a screw rod (408) is spirally arranged in the limiting frame (407), and the bottom of the screw rod (408) is rotatably connected to the adjustment frame (405).

9. A recycled plastic pelletizing and packaging device according to claim 8, characterized in that: The ladder-shaped guide frame (6) on one side is fixed to the U-shaped plate (501), a slide seat (504) is slidably arranged in the U-shaped plate (501), and the slide seat (504) is fixed to the positioning frame (406) through the U-shaped frame (505), wherein the two ends of the U-shaped plate (501) are slidably connected to the limit rods (502) fixedly arranged on the two sides of the conveying mechanism (3).

10. The recycled plastic pelletizing and packaging equipment according to claim 3, characterized in that: The collecting hoppers (2) on both sides are fixed to the conveying mechanism (3) via mounting frames (201) respectively, and the elastic mechanism comprises a sleeve (202) fixedly arranged on the mounting frame (201), and the other end of the sleeve (202) is slidably plugged with a telescopic rod (203) fixed to a sealing plate (206), and a telescopic spring (204) is provided on the telescopic rod (203).

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