A conveying device for plastic pellet processing

By introducing an adjustment component into the plastic pellet processing device, the problem of the discharge pipe not being able to be vertically aligned with the extruder feed hopper was solved, achieving stable alignment of the discharge port, avoiding waste of plastic pellets, and improving conveying efficiency.

CN224449197UActive Publication Date: 2026-07-03ZHEJIANG DAOYUAN PLASTIC TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG DAOYUAN PLASTIC TECHNOLOGY CO LTD
Filing Date
2025-08-22
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

In existing plastic pellet processing equipment, after the angle is adjusted, the discharge pipe cannot be perpendicular to the feed hopper of the extruder, resulting in plastic pellets splashing and causing waste.

Method used

An adjustment component was designed, including a counterweight, a locking wheel, a sliding column, and an adjustment control. By adjusting the orientation of the discharge pipe, the discharge port is ensured to always be vertically downward. In conjunction with the angle adjustment of the screw conveyor, the discharge pipe is aligned with the extruder feed hopper.

Benefits of technology

After adjusting the angle of the conveying pipe, the discharge port of the discharge pipe is always vertically aligned with the extruder feed hopper, which avoids plastic particles splashing and improves conveying efficiency and material utilization.

✦ Generated by Eureka AI based on patent content.

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Abstract

This application provides a conveying device for processing plastic granules, comprising: a frame; one end of a conveying pipe hinged to the frame; a mounting plate fixed to one end of the conveying pipe; a spiral blade coaxially rotatably connected inside the conveying pipe; a motor mounted on the mounting plate, the motor driving the spiral blade to rotate; a first driving member driving the conveying pipe to rotate around a hinge axis; a feeding hopper mounted at one end of the conveying pipe; a discharge hopper mounted at the end of the conveying pipe away from the feeding hopper, the discharge pipe having a discharge port; and an adjusting assembly mounted on the discharge pipe, the adjusting assembly adjusting the orientation of the discharge pipe to ensure that the discharge port of the discharge pipe is always vertically downward. This application, by adjusting the angle of the conveying pipe, ensures that the discharge port of the discharge pipe is vertically oriented towards the feed hopper of the extruder, preventing plastic granules from easily splashing to the outside.
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Description

Technical Field

[0001] This application relates to the field of plastic pellet processing, and more particularly to a conveying device for plastic pellet processing. Background Technology

[0002] In the processing of plastic granules, a conveying device is generally needed to transport the raw materials to the extruder, and the screw conveyor is a commonly used conveying equipment.

[0003] A Chinese patent with publication number CN223015961U discloses a centrally driven adjustable-angle screw conveyor. Through the cooperation of structures such as a fixed base, fixed shaft, connecting block, electric push rod, sliding seat, and controller, the electric push rod on the upper part of the fixed block is activated. The telescopic end of the electric push rod drives the sliding seat upward, simultaneously causing the connecting block to rotate outside the fixed shaft inside the fixed base. The two work together to tilt the screw conveyor body, enabling rapid adjustment of the device's angle and improving work efficiency.

[0004] However, the above-mentioned patent still has the following problems: the orientation of the discharge pipe on its conveying pipeline is fixed. After adjusting the angle, the discharge pipe cannot be perpendicular to the feed hopper of the extruder, which may cause plastic particles to splash to the outside and cause waste. Utility Model Content

[0005] In order to solve at least one of the technical problems mentioned in the background art, the purpose of this application is to provide a

[0006] A conveying device for processing plastic granules is provided, which can adjust the angle of the conveying pipe so that the discharge port of the discharge pipe can be vertically oriented towards the feed hopper of the extruder, ensuring that the plastic granules are not easily splashed to the outside.

[0007] To achieve the above objectives, this application provides the following technical solution:

[0008] A conveying device for processing plastic pellets, comprising:

[0009] frame;

[0010] A conveying pipe, one end of which is hinged to the frame;

[0011] Mounting plate, the mounting plate being fixedly connected to one end of the conveying pipe;

[0012] Helical blades, which are coaxially rotatably connected inside the conveying pipe;

[0013] An electric motor is mounted on the mounting plate and is used to drive the helical blades to rotate.

[0014] A first driving element is used to drive the conveying pipe to rotate about the hinge axis;

[0015] A feeding hopper is installed at one end of the conveying pipe;

[0016] The discharge pipe has a discharge hopper installed at the end of the conveying pipe away from the feed hopper and has a discharge port.

[0017] An adjustment component is installed on the discharge pipe and is used to adjust the orientation of the discharge pipe to ensure that the discharge port of the discharge pipe is always vertically downward.

[0018] In one possible implementation,

[0019] The discharge pipe includes:

[0020] A first pipe is fixed to the conveying pipe and is arranged radially along the conveying pipe;

[0021] There are two connecting shafts, which are rotatably connected to both sides of the first pipe.

[0022] The second pipe extends into the bottom end of the first pipe, and the second pipe is fixedly connected to the two connecting shafts.

[0023] In one possible implementation,

[0024] The adjustment component includes:

[0025] A counterweight, wherein the counterweight is installed at the bottom end of the second pipe;

[0026] A locking wheel is coaxially fixed to the connecting shaft, and a uniform locking groove is formed on the circumferential side of the locking wheel;

[0027] A first sliding column is slidably connected to the first pipe, and the sliding direction of the first sliding column is along the radial direction of the connecting shaft;

[0028] A locking plate is fixed to one end of the first sliding column near the locking wheel, and the bottom shape of the locking plate matches the locking groove.

[0029] An adjustment control is provided to switch the locking plate and the locking groove between a first state and a second state.

[0030] In the first state, the bottom of the locking plate is inserted into the locking groove, and the rotation of the connecting shaft is locked. In the second state, the locking plate is separated from the locking groove, and the connecting shaft rotates normally.

[0031] In one possible implementation,

[0032] The control panel includes:

[0033] An adjusting frame is fixed to the side of the first pipe, and the first sliding column is slidably connected to the adjusting frame;

[0034] The first retaining ring is coaxially fixed to the outer periphery of the first sliding column;

[0035] The first compression spring is sleeved around the outer periphery of the first sliding column, one end of the first compression spring is fixedly connected to the first retaining ring, and the other end of the first compression spring is fixedly connected to the adjustment frame;

[0036] A pull rope, one end of which is fixed to the first sliding column, and the other end of which is located at the mounting plate.

[0037] In one possible implementation,

[0038] The control panel also includes:

[0039] A first connecting rod is rotatably connected to the mounting plate;

[0040] A reel is coaxially fixed to the first connecting rod, and the end of the pull rope away from the first sliding post is fixed to the reel.

[0041] In one possible implementation,

[0042] The second connecting rod is rotatably connected to the mounting plate;

[0043] A first worm gear, which is rotatably connected to the first connecting rod;

[0044] A first worm gear is fixedly connected to the second connecting rod, and a first worm wheel is meshed with the first worm gear.

[0045] In one embodiment, a handle is fixed to the shaft end of the second connecting rod.

[0046] In one embodiment, the first driving member is a hydraulic rod, with one end hinged to the frame and the other end hinged to the conveying pipe.

[0047] Compared with the prior art, this application has the following advantages:

[0048] When adjusting the inclination angle of the conveying pipe, this application uses an adjusting component to control the discharge port of the discharge pipe to always be vertically downward, so that after the conveying pipe is adjusted, the discharge pipe can be vertically aligned with the feed hopper of the extruder, thereby ensuring that plastic particles are not easily splashed to the outside.

[0049] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of this application, nor is it intended to limit the scope of this application. Other features of this application will become readily apparent from the following description. Attached Figure Description

[0050] The above and other objects, features, and advantages of exemplary embodiments of this application will become readily apparent from the following detailed description taken in conjunction with the accompanying drawings. Several embodiments of this application are illustrated in the drawings by way of example and not limitation, wherein:

[0051] In the accompanying drawings, the same or corresponding reference numerals indicate the same or corresponding parts.

[0052] Figure 1 A schematic diagram of the overall structure of an embodiment of this application is shown;

[0053] Figure 2 An embodiment of this application is shown. Figure 1 Enlarged schematic diagram of structure A in the middle;

[0054] Figure 3 An embodiment of this application is shown. Figure 1 Enlarged schematic diagram of the B-structure;

[0055] Figure 4 A schematic diagram of the structure of the adjustment component according to an embodiment of this application is shown.

[0056] Explanation of the labels in the diagram:

[0057] 100. Rack;

[0058] 200. Conveying pipelines;

[0059] 300. Mounting plate;

[0060] 400. Spiral blades;

[0061] 500. Electric motor;

[0062] 600. First driving component;

[0063] 700. Feeding hopper;

[0064] 800, discharge pipe; 810, first pipe; 820, connecting shaft; 830, second pipe;

[0065] 900. Adjustment component; 910. Counterweight; 920. Locking wheel; 921. Locking groove; 930. First sliding column; 940. Locking plate; 950. Adjustment control; 951. Adjustment frame; 952. First retaining ring; 953. First compression spring; 954. Pull rope; 955. First connecting rod; 956. Coil wheel; 957. Second connecting rod; 958. First worm gear; 959. First worm. Detailed Implementation

[0066] To make the objectives, features, and advantages of this application more apparent and understandable, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0067] To further understand the design intent of this application, we will introduce existing conveying devices used in plastic granule processing. Firstly, there are many types of existing conveying devices for plastic granule processing, with screw conveyors being a common one. Existing screw conveyors work by pouring material into the feed inlet, then using screw blades to transport the material to a higher position before it is poured into the extruder's feed inlet. However, since different extruder models have different heights, existing technologies generally control the feeding height by adjusting the angle of the conveying pipe to adapt to different extruders in order to improve the conveyor's versatility. However, since the discharge pipe of the conveying device is generally fixed, adjusting the feeding height of the conveying device will change the orientation of its discharge port. The discharge port cannot be perpendicular to the extruder's feed inlet. This results in some material being lost as it falls along the discharge pipe to the discharge port due to inertia, potentially landing outside the extruder's feed hopper.

[0068] This application provides a conveying device for processing plastic granules, comprising:

[0069] frame;

[0070] A conveying pipe, one end of which is hinged to the frame;

[0071] Mounting plate, the mounting plate being fixedly connected to one end of the conveying pipe;

[0072] Helical blades, which are coaxially rotatably connected inside the conveying pipe;

[0073] An electric motor is mounted on the mounting plate and is used to drive the helical blades to rotate.

[0074] A first driving element is used to drive the conveying pipe to rotate about the hinge axis;

[0075] A feeding hopper is installed at one end of the conveying pipe;

[0076] The discharge pipe has a discharge hopper installed at the end of the conveying pipe away from the feed hopper and has a discharge port.

[0077] An adjustment component is installed on the discharge pipe and is used to adjust the orientation of the discharge pipe to ensure that the discharge port of the discharge pipe is always vertically downward.

[0078] Example 1:

[0079] Appendix Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application; Figure 2 This is an embodiment of the present application. Figure 1 Enlarged schematic diagram of structure A in the middle; Figure 3 This is an embodiment of the present application. Figure 1 Enlarged schematic diagram of the B-structure; Figure 4 This is a schematic diagram of the structure of the adjustment component in an embodiment of this application.

[0080] Please refer to the appendix. Figure 3 and attached Figure 4 The discharge pipe 800 of this application includes a first pipe 810, a connecting shaft 820, and a second pipe 830. The first pipe 810 is fixedly connected to the conveying pipe 200 and is arranged radially along the conveying pipe 200. The two connecting shafts 820 are respectively rotatably connected to both sides of the first pipe 810. The bottom end of the first pipe 810 extends into the second pipe 830, and the second pipe 830 is fixedly connected to the two connecting shafts 820.

[0081] For further details, please refer to Figure 2 , Figure 3 and 4The adjustment component 900 of this application includes a counterweight 910, a locking wheel 920, a first sliding column 930, a locking plate 940, and an adjustment control 950. A counterweight 910 is installed at the bottom of the second pipe 830; a locking wheel 920 is coaxially fixed to the connecting shaft 820, and a uniform locking groove 921 is provided on the circumferential side of the locking wheel 920; a first sliding column 930 is slidably connected to the outside of the first pipe 810, and the sliding direction of the first sliding column 930 is along the radial direction of the connecting shaft 820; a locking plate 940 is fixed to one end of the first sliding column 930 near the locking wheel 920, and the bottom shape of the locking plate 940 matches the shape of the locking groove 921; in addition, the adjusting assembly 900 also includes an adjusting control 950, which is used to control the locking plate 940 and the locking groove 921 to switch between a first state and a second state. In the first state, the bottom of the locking plate 940 is inserted into the locking groove 921, and the rotation of the connecting shaft 820 is locked. In the second state, the locking plate 940 is separated from the locking groove 921, and the connecting shaft 820 rotates normally.

[0082] The following is a further explanation based on a specific application scenario: The operator moves the conveying device to the extruder and adjusts the inclination angle of the conveying pipe 200 using the first drive component 600, so that the height of the discharge pipe 800 is exactly above the feed hopper 700 of the extruder. Before adjustment, the locking plate 940 and locking groove 921 need to be in the first and second states using the adjustment control 950. This way, when the inclination angle of the conveying pipe 200 increases or decreases, the second pipe 830 will always be vertically downward under the action of the counterweight 910. Thus, after the inclination angle of the conveying pipe 200 is adjusted, the second pipe 830 is guaranteed to be in a vertically downward state, thereby ensuring that the discharge port of the discharge pipe 800 is vertically aligned with the feed hopper of the corresponding extruder. This allows the plastic raw material to enter the feed hopper of the extruder vertically, preventing it from falling outside. Here, the discharge port of the discharge pipe 800 is located at the bottom of the discharge pipe 800. When the inclination angle of the conveying pipe 200 is adjusted, the locking plate 940 is inserted into the locking groove 921 by adjusting the control 950, thereby locking the second pipe 830 and the first pipe 810 relative to each other, thus making the operation of the device more stable.

[0083] After adjusting the angle of the conveying pipe 200, the staff can pour the raw material into the feeding hopper 700, then start the motor 500 to drive the spiral blade 400 to rotate, and then lift the raw material to the discharge pipe 800 through the spiral blade 400, and guide it into the feed hopper of the extruder from the discharge pipe 800.

[0084] Overall, when adjusting the inclination angle of the conveying pipe, the discharge port of the discharge pipe is always vertically downward by adjusting the components. This ensures that after the conveying pipe is adjusted, the discharge pipe is vertically aligned with the feed hopper of the extruder, thus preventing plastic particles from splashing to the outside.

[0085] Please refer to Figure 2 Appendix Figure 3 and attached Figure 4 As a specific embodiment of this application, the adjustment control 950 includes an adjustment frame 951, a first retaining ring 952, a first compression spring 953, and a pull rope 954. The adjustment frame 951 is fixedly connected to the side of the first pipe 810, while the first sliding post 930 is slidably connected to the adjustment frame 951; the first retaining ring 952 is coaxially fixedly connected to the outer periphery of the first sliding post 930; the first compression spring 953 is looped around the outer periphery of the first sliding post 930, and one end of the first compression spring 953 is fixedly connected to the first retaining ring 952, while the other end of the first compression spring 953 is fixedly connected to the adjustment frame 951; one end of the pull rope 954 is fixedly connected to the first sliding post 930, and the other end of the pull rope 954 is disposed at the mounting plate 300.

[0086] Depending on the specific application scenario, the locking of the second pipe 830 and the first pipe 810 is controlled by the cooperation of the locking groove 921 and the locking plate 940. The adjustment process of the locking groove 921 and the locking plate 940 is as follows: when it is necessary to adjust from the first state to the second state, the pull rope 954 is pulled from the mounting plate 300, which in turn pulls the first sliding column 930, thereby moving the first sliding column 930 and the locking plate 940 away from the first locking groove 921, thus separating the locking plate 940 and the locking groove 921, thereby releasing the locking of the first pipe 810 and the second pipe 830. When the pull rope 954 is pulled, the first compression spring 953 will be further compressed. After the angle of the conveying pipe 200 is adjusted, the pull rope 954 is released. Under the action of the first compression spring 953, the first sliding column 930 and the locking plate 940 will move toward the locking wheel 920 and be locked into the corresponding locking groove 921, thereby locking the first pipe 810 and the second pipe 830.

[0087] Please refer to Figure 4 As another specific implementation of the present application, the adjustment control 950 further includes a first connecting rod 955 and a coiled thread 956. The first connecting rod 955 is rotatably connected to the mounting plate 300, the coiled thread 956 is coaxially fixed to the first connecting rod 955, and one end of the pull rope 954 away from the first sliding column 930 is fixed to the coiled thread 956.

[0088] For further details, please refer to [link / reference]. Figure 4 The adjustment control 950 of this application also includes a second connecting rod 957, a first worm gear 958 and a first worm 959, wherein the second connecting rod 957 is rotatably connected to the mounting plate 300, the first worm 959 is coaxially fixed to the second connecting rod 957, and the first worm gear 958 is coaxially fixed to the first connecting rod 955, and the first worm gear 958 and the first worm 959 are meshed together.

[0089] Further explanation based on specific usage scenarios: When it is necessary to adjust the state of the locking plate 940 and the locking groove 921, rotating the second connecting rod 957 causes the first connecting rod 955 to rotate under the meshing of the first worm gear 959 and the first worm wheel 958, which in turn drives the coil wheel 956 to rotate, causing the pull rope 954 to be wound around, thereby pulling the first sliding column 930 and the locking plate 940 away from the locking groove 921. Here, the self-locking function of the first worm wheel 958 and the first worm gear 959 also ensures that after the locking plate 940 and the locking groove 921 are separated, the locking plate 940 will not immediately insert into the locking groove 921 due to the action of the first compression spring 953, ensuring that the adjustment process of the conveying pipe 200 does not require consideration of the locking groove 921 and the locking plate 940.

[0090] Furthermore, the rotation of the second connecting rod 957 can be driven by a motor 500, or a handle can be installed at the end of the second connecting rod 957 for driving. The figure in this application uses manual control of the handle for driving.

[0091] Furthermore, in order to ensure that the pulling process of the pull rope 954 is not interfered with by other structures, multiple fixed pulleys can be set to adjust the specific layout direction of the pull rope 954.

[0092] Please refer to Figure 1 As another specific implementation of the present application, the first driving member 600 is a hydraulic rod, with one end of the first driving member 600 hinged to the frame 100 and the other end hinged to the conveying pipe 200.

[0093] Depending on the specific application scenario, when it is necessary to adjust the angle of the conveying pipe 200, the extension and shortening of the first driving component 600 drives the conveying pipe 200 to rotate around the hinge axis between the conveying pipe 200 and the frame 100, thereby achieving the adjustment of the tilt angle of the conveying pipe 200.

[0094] It should be understood that the various forms of processes shown above can be used to rearrange, add, or delete steps. For example, the steps described in this application can be executed in parallel, sequentially, or in different orders, as long as the desired result of the technical solution of this application can be achieved, and this is not limited herein.

[0095] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0096] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A conveying device for processing plastic granules, characterized in that, include: Rack (100); A conveying pipe (200), one end of which is hinged to the frame (100); Mounting plate (300), the mounting plate (300) is fixed to one end of the conveying pipe (200); A helical blade (400) is coaxially rotatably connected inside the conveying pipe (200); A motor (500) is mounted on the mounting plate (300) and is used to drive the helical blade (400) to rotate; A first driving member (600) is used to drive the conveying pipe (200) to rotate about a hinge axis; A feeding hopper (700) is installed at one end of the conveying pipe (200); A discharge pipe (800) is installed at one end of the conveying pipe (200) away from the feed hopper (700), and the discharge pipe (800) has a discharge port; An adjustment component (900) is installed on the discharge pipe (800). The adjustment component (900) is used to adjust the orientation of the discharge pipe (800) to ensure that the discharge port of the discharge pipe (800) is always vertically downward.

2. The conveying device for processing plastic granules according to claim 1, characterized in that, The discharge pipe (800) includes: A first pipe (810) is fixed to the conveying pipe (200) and is arranged radially along the conveying pipe (200); There are two connecting shafts (820), which are rotatably connected to both sides of the first pipe (810). The second pipe (830) has the bottom end of the first pipe (810) extending into the second pipe (830), and the second pipe (830) is fixedly connected to the two connecting shafts (820).

3. The conveying device for processing plastic granules according to claim 2, characterized in that, The adjustment component (900) includes: A counterweight (910) is installed at the bottom end of the second pipe (830); Locking wheel (920), the locking wheel (920) is coaxially fixed to the connecting shaft (820), and the locking wheel (920) has a uniform locking groove (921) on its circumferential side. The first slide column (930) is slidably connected to the first pipe (810), and the sliding direction of the first slide column (930) is along the radial direction of the connecting shaft (820). A locking plate (940) is fixed to one end of the first sliding column (930) near the locking wheel (920), and the bottom shape of the locking plate (940) matches the locking groove (921); A control panel (950) controls the switching of the locking plate (940) and the locking groove (921) between a first state and a second state, wherein... In the first state, the bottom of the locking plate (940) is inserted into the locking groove (921), and the rotation of the connecting shaft (820) is locked. In the second state, the locking plate (940) is separated from the locking groove (921), and the connecting shaft (820) rotates normally.

4. The conveying device for processing plastic granules according to claim 3, characterized in that, The control panel (950) includes: Adjustment frame (951), the adjustment frame (951) is fixed to the side of the first pipe (810), and the first sliding column (930) is slidably connected to the adjustment frame (951); The first retaining ring (952) is coaxially fixed to the outer periphery of the first sliding column (930); The first compression spring (953) is sleeved around the outer periphery of the first sliding column (930). One end of the first compression spring (953) is fixedly connected to the first retaining ring (952), and the other end of the first compression spring (953) is fixedly connected to the adjusting frame (951). A pull rope (954) is provided, one end of which is fixed to the first sliding column (930), and the other end of which is located at the mounting plate (300).

5. The conveying device for processing plastic granules according to claim 4, characterized in that, The control panel (950) also includes: The first connecting rod (955) is rotatably connected to the mounting plate (300); A reel (956) is coaxially fixed to the first connecting rod (955), and the end of the pull rope (954) away from the first sliding column (930) is fixed to the reel (956).

6. The conveying device for processing plastic granules according to claim 5, characterized in that, The second connecting rod (957) is rotatably connected to the mounting plate (300); The first worm gear (958) is rotatably connected to the first connecting rod (955). A first worm (959) is fixedly connected to a second connecting rod (957), and a first worm wheel (958) is meshed with the first worm (959).

7. The conveying device for processing plastic granules according to claim 6, characterized in that, A handle is fixed to the shaft end of the second connecting rod (957).

8. The conveying device for processing plastic granules according to claim 1, characterized in that, The first drive unit (600) is a hydraulic rod. One end of the first drive unit (600) is hinged to the frame (100), and the other end is hinged to the conveying pipe (200).