Plastic particle conveyor with screening function

Abstract

The utility model discloses a kind of plastic particle conveyors with screening function, it is related to the technical field of plastic particles, including conveying shell, the one end of conveying shell is equipped with driving motor, the output of driving motor is fixedly connected with conveying spiral shaft. The utility model is pressed by the design of pressing block, baffle, reset spring etc. Component, constitutes a efficient quick disassembly structure, to realize the installation of screening net, one press one lift, one pull one loose can be disassembled and installed, to realize the maintenance and replacement of the screen, increase the service life of screen, greatly reduce the time cost and operation difficulty of equipment maintenance.

Description

Technical Field

[0001] This utility model relates to the technical field of plastic granules, and in particular to a plastic granule conveyor with a screening function. Background Technology

[0002] Conveyors, as the name suggests, are devices used to transport materials, mostly granular materials. Traditional conveyors lack material screening capabilities in practical use. Therefore, before the materials are processed, screening equipment is needed to remove materials that do not meet processing requirements. This increases the user's workload and procedures, raises their workload intensity, and reduces material processing efficiency.

[0003] The current announcement (CN 222006366 U) discloses a plastic granule conveyor with a screening function, including a housing. A screening mechanism is detachably installed at the bottom of the housing. The screening mechanism includes a mounting frame fixed to the housing by bolts. A movable frame is slidably installed on the inner side of the mounting frame. Equally spaced cylindrical strips are rotatably installed inside the movable frame. Limiting sliding openings are provided at both ends of one side of the mounting frame. This utility model adds a screening structure to a traditional conveyor. When the material is conveyed, it can be screened. In this way, the material can be conveyed and screened at the same time, and materials that do not meet the usage requirements can be screened out to meet the processing requirements of plastic granules. Moreover, it can achieve two functions in one machine, which not only improves the working performance of the conveyor itself, but also improves the user's work efficiency, reduces equipment procurement costs, and provides convenience for the user's work.

[0004] The aforementioned disclosed technology achieves simultaneous screening during the conveying process by adding a screening mechanism consisting of a mounting frame, a movable frame, and cylindrical bars to the bottom of the casing. However, this prior art still has the following obvious shortcomings:

[0005] First, the screening mechanism is fixed in place by bolts, making the replacement, cleaning, or maintenance of the screen cumbersome. Tools are needed to remove the bolts, which is inconvenient, time-consuming, and labor-intensive, making quick disassembly difficult. This reduces the lifespan of the screen and increases the time and operational difficulty of equipment maintenance. Second, the screening mechanism lacks an effective anti-clogging design. During screening, plastic particles are easily adsorbed by static electricity or contain slight moisture, causing them to stick and clog the screen holes. This leads to a rapid decline in screening efficiency and unsatisfactory screening results, requiring frequent shutdowns for manual cleaning, which cannot meet the needs of modern continuous production.

[0006] Therefore, there is an urgent need in this field for a plastic pellet conveyor that integrates conveying and screening while also providing easy and quick maintenance and efficient anti-clogging functions. Utility Model Content

[0007] The purpose of this utility model is to provide a plastic granule conveyor with screening function in order to solve the above-mentioned problems.

[0008] To achieve the above objectives, the present invention adopts the following technical solution: it includes a conveying housing, a drive motor is installed at one end of the conveying housing, a conveying screw shaft is fixedly connected to the output end of the drive motor, a feeding pipe is fixedly connected to the top of the conveying housing, and a screening and discharging mechanism is installed at the bottom of the conveying housing.

[0009] The screening and discharging mechanism includes a screening housing, which is fixedly connected to the bottom of the conveying housing. An inspection door is installed on the surface of the screening housing. Vibration motors are installed on both sides of the screening housing, and vibration springs are engaged with the output ends of the vibration motors. A discharge pipe is fixedly connected to the bottom of the screening housing.

[0010] In practical applications, when the vibration motor is started, the vibration of the end of the vibration motor drives the vibration spring to vibrate, and the vibration of the vibration spring drives the fixed frame to vibrate.

[0011] Furthermore, one end of the vibration spring is fixedly connected to a fixed frame, a positioning block is movably connected inside the fixed frame, a connecting plate is fixedly connected to one side of the fixed frame, a stop block is movably connected inside the connecting plate, the stop block is movably installed on the top of the positioning block, a pressing block is fixedly connected to one end of the stop block, a return spring is fixedly connected to one side of the pressing block, a connecting plate is fixedly connected to one end of the return spring, and a screening screen is fixedly connected to one end of the positioning block.

[0012] In practical applications, the end of the stop is pinched and pulled towards the inner wall of the screening housing. The connecting plate is adapted to the stop, and the return spring is elastic. The stop slides inside the connecting plate. When the stop leaves the top of the screening screen and the positioning block, the screening screen is lifted upward. The positioning block is adapted to the fixed frame and slides upward with the screening screen, thereby disassembling the screening screen.

[0013] Furthermore, the screening mesh includes a mounting frame, with a partition column running through the interior of the mounting frame to divide the interior space of the mounting frame. A baffle ring is provided inside the mounting frame, and a bouncing ball is movably arranged inside the baffle ring. An upper screen is fixedly connected to the top of the mounting frame, and a fixing plate is installed on the surface of the upper screen. The fixing plate is threadedly connected to the surface of the mounting frame, and a lower screen is fixedly connected to the bottom of the mounting frame.

[0014] In practical applications, during vibration, the bouncing balls placed inside the baffle ring bounce continuously, impacting the back of the upper and lower screens, effectively shaking off particles clogging the screen holes, keeping the screens clear, and ensuring screening efficiency. Particles passing through the upper screen fall onto the lower screen, which has smaller mesh openings and is used to remove fine dust or non-standard, excessively small particles.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The design incorporates components such as pressing blocks, stop blocks, and return springs, forming an efficient and quick-assembly / disassembly structure. This allows for the installation of the screening screen, which can be disassembled and installed with a simple press, lift, pull, and release. This enables the maintenance and replacement of the screening screen, increases its service life, and greatly reduces the time cost and operational difficulty of equipment maintenance.

[0017] Bouncing balls and baffle rings are installed below the screen. By utilizing the vibration energy during equipment operation, the bouncing balls continuously impact the screen, achieving screen in place and automatic unclogging. This effectively solves the technical problem of screen clogging caused by plastic particles due to static electricity, humidity, and other reasons, ensuring the continuity and stability of screening. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure proposed in this utility model;

[0019] Figure 2 This is a schematic diagram of the conveying spiral shaft structure proposed in this utility model;

[0020] Figure 3 This is a schematic diagram of the screening and discharging mechanism proposed in this utility model;

[0021] Figure 4 This is a schematic diagram of the screening and discharging mechanism proposed in this utility model;

[0022] Figure 5 This is a schematic diagram of the screening mesh structure proposed in this utility model.

[0023] In the diagram: 1. Conveying housing; 2. Feeding pipe; 3. Drive motor; 4. Screening and discharging mechanism; 40. Screening housing; 41. Inspection door; 42. Discharging pipe; 43. Vibrating motor; 44. Vibrating spring; 45. Fixing frame; 46. Screening mesh; 460. Mounting frame; 461. Lower screen; 462. Upper screen; 463. Fixing plate; 464. Baffle post; 465. Baffle ring; 466. Bouncing ball; 47. Connecting plate; 48. Stop block; 49. Return spring; 491. Pressing block; 492. Positioning block; 5. Conveying screw shaft. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] Reference Figure 1-5 A plastic pellet conveyor with screening function includes a conveying housing 1, a drive motor 3 is installed at one end of the conveying housing 1, a conveying screw shaft 5 is fixedly connected to the output end of the drive motor 3, a feeding pipe 2 is fixedly connected to the top of the conveying housing 1, and a screening and discharging mechanism 4 is installed at the bottom of the conveying housing 1.

[0027] The screening and discharging mechanism 4 includes a screening housing 40, which is fixedly connected to the bottom of the conveying housing 1. An inspection door 41 is installed on the surface of the screening housing 40. Vibration motors 43 are installed on both sides of the screening housing 40. Vibration springs 44 are engaged with the output ends of the vibration motors 43. A discharge pipe 42 is fixedly connected to the bottom of the screening housing 40. A fixed frame 45 is fixedly connected to one end of the vibration spring 44. A positioning block 492 is movably connected inside the fixed frame 45. A connecting plate 47 is fixedly connected to one side of the fixed frame 45. A stop block 48 is movably connected inside the connecting plate 47. The stop block 48 is movably installed on the top of the positioning block 492. A pressing block 491 is fixedly connected to one end of the stop block 48. A return spring 49 is fixedly connected to one side of the pressing block 491. A connecting plate 47 is fixedly connected to one end of the return spring 49. A screening screen 46 is fixedly connected to one end of the positioning block 492.

[0028] In practical applications, plastic granules are fed into the conveying housing 1 through the feeding pipe 2. The drive motor 3 is started, and the drive motor 3 drives the conveying screw shaft 5 to rotate. Using the screw conveying principle, the plastic granules are smoothly and continuously conveyed forward to the inlet of the screening and discharging mechanism 4 located at the bottom of the conveying housing 1.

[0029] Start the vibration motor 43. The end of the vibration motor 43 vibrates, which drives the vibration spring 44 to vibrate. The vibration of the vibration spring 44 drives the fixed frame 45 to vibrate. The fixed frame 45 and the screening screen 46 are connected by the positioning block 492. The screening screen 46 vibrates accordingly to screen the plastic particles.

[0030] Hold the handle, open the inspection door 41, pinch the end of the stop 48 and pull it toward the inner wall of the screening housing 40. The connecting plate 47 is adapted to the stop 48, the return spring 49 is elastic, and the stop 48 slides inside the connecting plate 47. When the stop 48 leaves the top of the screening screen 46 and the positioning block 492, lift the screening screen 46 upward. The positioning block 492 is adapted to the fixed frame 45 and slides upward with the screening screen 46, thereby realizing the disassembly of the screening screen 46.

[0031] Conversely, pressing the positioning block 492 downwards engages with the fixing frame 45, releasing the stop block 48, and the return spring 49 retracts, causing the stop block 48 to slide inside the connecting plate 47 until the end of the stop block 48 slides to the top of the screening screen 46 and the positioning block 492, thus fixing the position of the screening screen 46 a second time. This achieves the installation of the screening screen 46. Disassembly and installation can be performed by pressing and lifting, pulling and releasing, thereby achieving the maintenance and replacement of the screening screen 46 and increasing its service life.

[0032] Furthermore, the screening mesh 46 includes a mounting frame 460, with a baffle post 464 running through the interior of the mounting frame 460, dividing the interior space of the mounting frame 460. A baffle ring 465 is provided inside the mounting frame 460, and a bouncing ball 466 is movably disposed inside the baffle ring 465. An upper screen 462 is fixedly connected to the top of the mounting frame 460, and a fixing plate 463 is installed on the surface of the upper screen 462. The fixing plate 463 is threadedly connected to the surface of the mounting frame 460. A lower screen 461 is fixedly connected to the bottom of the mounting frame 460.

[0033] In practical applications, after plastic particles enter the screening housing 40, they fall onto the upper screen 462 of the screening mesh 46. At this time, the vibration motors 43 installed on both sides of the screening housing 40 are started. The vibration force generated by the vibration motors 43 is transmitted to the entire interior through the vibration springs 44. The vibration frame includes a fixed frame 45, a connecting plate 47 and the screening mesh 46, which causes it to generate high-frequency micro-amplitude vibration. Under this vibration, qualified plastic particles larger than the mesh size of the upper screen 462 can pass through the screen and fall into the second screening space formed by the lower screen 461. Impurities or lumps larger than the mesh size are retained on the surface of the upper screen 462 and move along the screen surface direction, eventually being discharged from the discharge pipe 42 on one side. During the vibration process, the bouncing ball 466 placed in the baffle ring 465 bounces continuously, hitting the back of the upper screen 462 and the lower screen 461, effectively shaking off the particles blocked in the screen holes, keeping the screen open, and ensuring screening efficiency. Particles passing through the upper screen 462 fall onto the lower screen 461. The mesh size of the lower screen 461 is smaller and is used to remove fine dust or non-standard particles that are too small.

[0034] The baffle ring 465 is fixedly installed inside the mounting frame 460. The distance between its top and the bottom surface of the upper screen 462, and the distance between its bottom and the top surface of the lower screen 461, are both smaller than the diameter of the bouncing ball 466, so as to ensure that the bouncing ball 466 can effectively hit the upper and lower screens in the limited vertical space.

[0035] Finally, the qualified plastic granules with uniform particle size, after two-stage screening, pass through the lower screen 461 and are discharged from the bottom discharge pipe 42 as the qualified product outlet. Fine dust is intercepted by the lower screen 461. The inspection door 41 can be opened to clean the dust inside the screen 46. The baffle posts 464 divide the interior of the mounting frame 460, which helps guide materials of different grades to the designated discharge pipe 42.

[0036] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A plastic pellet conveyor with screening function, characterized in that, It includes a conveying housing (1), a drive motor (3) is installed at one end of the conveying housing (1), a conveying screw shaft (5) is fixedly connected to the output end of the drive motor (3), a feeding pipe (2) is fixedly connected to the top of the conveying housing (1), and a screening and discharging mechanism (4) is installed at the bottom of the conveying housing (1). The screening and discharging mechanism (4) includes a screening housing (40), which is fixedly connected to the bottom of the conveying housing (1). An inspection door (41) is installed on the surface of the screening housing (40). Vibration motors (43) are installed on both sides of the screening housing (40). A vibration spring (44) is engaged with the output end of the vibration motor (43). A discharge pipe (42) is fixedly connected to the bottom of the screening housing (40).

2. A plastic granule conveyor with screening function according to claim 1, characterized in that, One end of the vibration spring (44) is fixedly connected to a fixed frame (45), and a positioning block (492) is movably connected inside the fixed frame (45). A connecting plate (47) is fixedly connected to one side of the fixed frame (45).

3. A plastic pellet conveyor with screening function according to claim 2, characterized in that, The connecting plate (47) is movably connected to a stop (48), which is movably installed on the top of the positioning block (492). One end of the stop (48) is fixedly connected to a pressing block (491).

4. A plastic pellet conveyor with screening function according to claim 3, characterized in that, A reset spring (49) is fixedly connected to one side of the pressing block (491), a connecting plate (47) is fixedly connected to one end of the reset spring (49), and a screening screen (46) is fixedly connected to one end of the positioning block (492).

5. A plastic pellet conveyor with screening function according to claim 4, characterized in that, The screening net (46) includes a mounting frame (460), and a baffle post (464) is connected through the interior of the mounting frame (460). The baffle post (464) divides the interior space of the mounting frame (460), and a baffle ring (465) is provided inside the mounting frame (460).

6. A plastic pellet conveyor with screening function according to claim 5, characterized in that, The baffle ring (465) is movably provided with a bouncing ball (466), the top of the mounting frame (460) is fixedly connected with an upper screen (462), the surface of the upper screen (462) is mounted with a fixing plate (463), the fixing plate (463) is threadedly connected to the surface of the mounting frame (460), and the bottom of the mounting frame (460) is fixedly connected with a lower screen (461).

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