A feeding device for processing plastic boxes

Abstract

The utility model provides a kind of feeding device for plastic box processing, including screening area, heating area is fixedly connected above the screening area, a plurality of heating rods are fixedly connected in heating area inside, limit rod is slidably connected in screening area inside, a plurality of limit rod one end is fixedly connected with screening box, connecting sleeve is fixedly connected with heating area bottom in screening box, screening drive assembly is fixedly connected with one side of screening box and screening area, wave sieve plate and top sieve plate are fixedly connected in limit rod inside, wave sieve plate is located limit rod bottom;After plastic particle enters heating area, electric heating rod removes moisture by heating, subsequently enters the screening box of inclination by connecting sleeve;The through hole of wave sieve plate and top sieve plate makes airflow pass through particle layer, further dry and blow away dust, screening motor drives cam extrusion screening box, cooperate spring reset to generate vibration, aggravate particle rolling, avoid blockage, can complete heating, dehumidification and screening, improve injection molding raw material purity.

Description

Technical Field

[0001] This utility model relates to the field of plastic box processing technology, and in particular to a feeding device for plastic box processing. Background Technology

[0002] Plastic box processing refers to the production process of turning plastic raw materials into various box-shaped containers through a series of industrial technologies. It mainly involves raw material processing, molding, post-processing, and quality inspection. First, according to product requirements, plastic granules such as polyethylene (PE), polypropylene (PP), or polystyrene (PS) are selected. After drying, dyeing, or adding additives (such as UV stabilizers) for pretreatment, they are shaped through processes such as injection molding, blow molding, or thermoforming. The raw materials used for injection molding are mostly granular bagged raw materials. When using them, these raw materials need to be put into the injection molding equipment for melting and injection molding. However, these raw materials may have problems such as high moisture content and dust during storage and transportation.

[0003] A search revealed a Chinese patent publication number CN220973146U, which discloses a raw material feeding device for processing plastic lunch boxes. The device includes a base plate and a stepping conveyor mounted on the base plate. Multiple feeding troughs are installed on the working surface of the stepping conveyor. A material collection mechanism is provided on one side of the input end of the stepping conveyor, and an injection molding machine body is provided on one side of the output end of the stepping conveyor.

[0004] To address the problem of the aforementioned technologies lacking the function of pre-treating plastic granules to remove surface moisture and mixed dust, a feeding device for processing plastic boxes is proposed. Utility Model Content

[0005] In view of this, the present invention aims to provide a feeding device for processing plastic boxes to solve or alleviate the technical problems existing in the prior art, and at least provide a beneficial option.

[0006] The technical solution of this utility model embodiment is implemented as follows: A feeding device for processing plastic boxes includes a screening area, a heating area is fixedly connected above the screening area, a plurality of heating rods are fixedly connected inside the heating area, a limit rod is slidably connected inside the screening area, a screening box is fixedly connected to one end of the plurality of limit rods, a connecting sleeve is fixedly connected to the bottom of the screening box and the heating area, a screening drive assembly is fixedly connected to one side of the screening box and the screening area, a corrugated screen plate and a top screen plate are fixedly connected inside the limit rod, the corrugated screen plate is located at the bottom of the limit rod, and the top screen plate is located at the top of the limit rod.

[0007] In some embodiments, the screening drive assembly includes a spring, a cam, and a screening motor. The two ends of the spring are fixedly connected to the screening box and the inner wall of the screening area, respectively. A cam is fixedly connected to the upper side of the screening area. The power output end of the cam is fixedly connected to the screening motor. One side of the screening motor is slidably connected to the inner wall of the screening box.

[0008] In some embodiments, a stirring assembly is rotatably connected inside the heating zone, and the motor end of the stirring assembly is fixedly connected to the outer wall of the heating zone.

[0009] In some embodiments, an exhaust hood is fixedly connected above the sieving area, an exhaust fan is fixedly connected to the exhaust hood's outlet end, and a filter box is fixedly connected to the exhaust fan's outlet end.

[0010] In some embodiments, an air intake hood is fixedly connected below the sieving area, and a heating element is fixedly connected to the air intake end of the air intake hood.

[0011] In some embodiments, a feeding turntable is rotatably connected to one side of the heating zone, and a horizontal support plate and a discharge stop are fixedly connected to the top of the heating zone.

[0012] In some embodiments, clamping frames are fixedly connected to both sides of the feeding plate, two clamping plates are slidably connected inside the clamping frames, and a double-ended screw is rotatably connected to the inner side of the clamping frames. The two ends of the double-ended screw are threaded to screw nuts on one side of the clamping plates.

[0013] In some embodiments, movable baffles are fixedly connected to both sides of the screening box, and the movable baffles are slidably connected to both sides of the screening area.

[0014] The present invention has the following advantages due to the adoption of the above technical solution:

[0015] 1. A feeding device for processing plastic boxes, wherein plastic granules enter a heating zone, where an electric heating rod heats them to remove moisture, and then they enter an inclined screening box through a connecting sleeve; the through holes of the corrugated screen plate and the top screen plate allow airflow to pass through the granule layer, further drying and blowing away dust; the screening motor drives a cam to squeeze the screening box, and with the help of a spring reset, vibration is generated, which intensifies the rolling of granules and avoids blockage, thereby completing heating, dehumidification and screening, and improving the purity of injection molding raw materials.

[0016] 2. A feeding device for processing plastic boxes, wherein the blades of the stirring component and the heating rod are staggered and the particles are stirred when rotating to ensure uniform heating; the warm air component blows hot air upward from the bottom of the screening area, which works in conjunction with the airflow formed by the exhaust fan to accelerate the evaporation of moisture and the discharge of dust.

[0017] 3. A feeding device for processing plastic boxes, wherein a material bag can be placed horizontally by a feeding turntable, a double-headed screw drives a clamping plate to fix the bag opening, and rotating the turntable achieves controllable tilting, avoiding spillage from manual feeding and bags falling into the heating zone.

[0018] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a structural diagram of the main body of this utility model;

[0021] Figure 2 This is a structural diagram of the feeding plate of this utility model;

[0022] Figure 3 This is a cross-sectional internal structural diagram of the present invention;

[0023] Figure 4 This is an exploded structural diagram of the sieve box of this utility model;

[0024] Figure 5 This is a side view of the present invention.

[0025] Figure label:

[0026] 1. Screening zone; 2. Heating zone; 3. Feeding plate; 4. Horizontal support plate; 5. Discharge baffle; 6. Clamping frame; 7. Double-ended screw; 8. Clamping plate; 9. Mixing assembly; 10. Heating rod; 11. Connecting sleeve; 12. Screening box; 13. Limiting rod; 14. Spring; 15. Exhaust hood; 16. Exhaust fan; 17. Filter box; 18. Corrugated screen plate; 19. Top screen plate; 20. Cam; 21. Screening motor; 22. Moving baffle; 23. Air inlet hood; 24. Warm air component. Detailed Implementation

[0027] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.

[0028] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0029] Example 1:

[0030] like Figure 1-5 As shown, a feeding device for processing plastic boxes includes a screening zone 1. A heating zone 2 is fixedly connected above the screening zone 1. Multiple heating rods 10 are fixedly connected to the inner side of the heating zone 2. The heating rods 10 are preferably electric heating rods, which can heat nearby plastic particles. The heating temperature is preferably not higher than 100 degrees Celsius. Limiting rods 13 are slidably connected to the inner side of the screening zone 1. A screening box 12 is fixedly connected to one end of the multiple limiting rods 13. A connecting sleeve 11 is fixedly connected to the bottom of the screening box 12 and the heating zone 2. A screening drive assembly is fixedly connected to one side of the screening box 12 and the screening zone 1. A corrugated screen plate 18 and a top screen plate 19 are fixedly connected inside the limiting rods 13. The corrugated screen plate 18 is located at the bottom of the limiting rods 13, and the top screen plate 19 is located at the top of the limiting rods 13.

[0031] The entire device is installed above the molten injection molding unit. The plastic granules, after being processed by the feeding device, then enter the injection molding unit for further processing.

[0032] After the plastic granules enter the heating zone 2, they are first heated by the heating rod 10 to remove internal moisture. Then, the plastic granules enter the screening box 12 through the soft material connecting sleeve 11. Preferably, the screening box 12 is inclined, and the inclination angle can be 10-20°. When the plastic granules slide down, they will roll on the corrugated screen plate 18. When the airflow passes through the through holes of the corrugated screen plate 18 and the top screen plate 19, it can further remove moisture and blow away the dust adhering to the plastic granules, thereby improving the product quality of the injection molded products in subsequent processing.

[0033] Furthermore, because the surface of the corrugated screen plate 18 has protrusions, it can intensify the rolling of plastic particles, and in conjunction with the screening drive assembly, it can make the plastic particles vibrate more, preventing them from accumulating and clogging the screening box 12.

[0034] In this embodiment, the screening drive assembly includes a spring 14, a cam 20, and a screening motor 21. The two ends of the spring 14 are fixedly connected to the inner wall of the screening box 12 and the screening area 1, respectively. The cam 20 is fixedly connected to the upper side of the screening area 1. The power output end of the cam 20 is fixedly connected to the screening motor 21. One side of the screening motor 21 is slidably connected to the inner wall of the screening box 12. When the screening motor 21 is working, it can drive the cam 20 to rotate, thereby squeezing the screening box 12 to move left and right. The spring 14 can drive the screening box 12 to reset and vibrate.

[0035] In this embodiment, a stirring assembly 9 is rotatably connected inside the heating zone 2. The motor end of the stirring assembly 9 is fixedly connected to the outer wall of the heating zone 2. The stirring shaft end of the stirring assembly 9 has multiple blades, and the blades and heating rods 10 are arranged alternately. When rotating, the uniformity of heating of the plastic particles can be improved.

[0036] In this embodiment, an exhaust hood 15 is fixedly connected above the sieving area 1, an exhaust fan 16 is fixedly connected to the exhaust outlet of the exhaust hood 15, and a filter box 17 is fixedly connected to the exhaust outlet of the exhaust fan 16.

[0037] An air inlet hood 23 is fixedly connected below the screening area 1, and a warm air component 24 is fixedly connected to the air inlet end of the air inlet hood 23.

[0038] The warm air component 24 is preferably a hot air blower that blows hot air from below to further dry and remove dust. The exhaust fan 16 can assist the airflow to be discharged from above, while the filter box 17 collects dust to prevent it from spreading into the processing environment.

[0039] In this embodiment: the entire device is installed above the melt injection molding device, and the plastic granules processed by the feeding device are then processed in the injection molding device;

[0040] After the plastic granules enter the heating zone 2, they are first heated by the heating rod 10 to remove internal moisture. Then, the plastic granules enter the screening box 12 through the soft material connecting sleeve 11. Preferably, the screening box 12 is inclined, and the inclination angle can be 10-20°. When the plastic granules slide down, they will roll on the corrugated screen plate 18. When the airflow passes through the through holes of the corrugated screen plate 18 and the top screen plate 19, it can further remove moisture and blow away the dust adhering to the plastic granules, thereby improving the product quality of the injection molded products in subsequent processing.

[0041] Furthermore, because the surface of the corrugated screen plate 18 has protrusions, it can intensify the rolling of plastic particles, and in conjunction with the screening drive assembly, it can make the plastic particles vibrate more, preventing them from accumulating and clogging the screening box 12.

[0042] When the screening motor 21 is working, it can drive the cam 20 to rotate, thereby squeezing the screening box 12 to move left and right. The spring 14 can drive the screening box 12 to reset and vibrate.

[0043] The stirring assembly 9 has multiple blades at the end of the stirring shaft. The blades and heating rods 10 are arranged in an alternating manner, which can improve the uniformity of heating of plastic particles when rotating.

[0044] The warm air component 24 is preferably a hot air blower that blows hot air from below to further dry and remove dust. The exhaust fan 16 can assist the airflow to be discharged from above, while the filter box 17 collects dust to prevent it from spreading into the processing environment.

[0045] Example 2:

[0046] A feeding device for processing plastic boxes, this embodiment is improved based on embodiment 1 as follows, such as... Figure 1-5 As shown,

[0047] In this embodiment, a feeding plate 3 is rotatably connected to one side of the heating zone 2, and a horizontal support plate 4 and a discharge stop bar 5 are fixedly connected to the top of the heating zone 2.

[0048] The horizontal support plate 4 can make the feeding turntable 3 horizontal, and the discharge baffle 5 can limit the maximum rotation angle of the feeding turntable 3.

[0049] The feeding plate 3 is fixedly connected to both sides of the clamping frame 6. Two clamping plates 8 are slidably connected inside the clamping frame 6. A double-headed screw 7 is rotatably connected inside the clamping frame 6. The two ends of the double-headed screw 7 are threaded to the screw nut on one side of the clamping plate 8.

[0050] When in use, place the bag containing plastic granules on the horizontal feeding turntable 3, and then turn the double-headed screw 7. Use the two clamps 8 to move inward to hold the tail of the bag. Then turn the feeding turntable 3 to stably pour out the plastic granules and prevent the staff from dropping the bag into the heating zone 2.

[0051] In this embodiment, movable baffles 22 are fixedly connected to both sides of the sieving box 12, and the movable baffles 22 are slidably connected to both sides of the sieving area 1; the movable baffles 22 can keep one end of the sieving area 1 closed when the sieving box 12 moves left and right.

[0052] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this utility model, and these should all be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A feeding device for processing plastic boxes, comprising a screening area (1), characterized in that: A heating zone (2) is fixedly connected above the screening zone (1). Multiple heating rods (10) are fixedly connected inside the heating zone (2). A limiting rod (13) is slidably connected inside the screening zone (1). A screening box (12) is fixedly connected to one end of the multiple limiting rods (13). A connecting sleeve (11) is fixedly connected to the bottom of the screening box (12) and the heating zone (2). A screening drive assembly is fixedly connected to one side of the screening box (12) and the screening zone (1). A wave screen plate (18) and a top screen plate (19) are fixedly connected inside the limiting rod (13). The wave screen plate (18) is located at the bottom of the limiting rod (13), and the top screen plate (19) is located at the top of the limiting rod (13).

2. The feeding device for processing plastic boxes according to claim 1, characterized in that: The screening drive assembly includes a spring (14), a cam (20), and a screening motor (21). The two ends of the spring (14) are fixedly connected to the inner wall of the screening box (12) and the screening area (1), respectively. The cam (20) is fixedly connected to the upper side of the screening area (1). The power output end of the cam (20) is fixedly connected to the screening motor (21). One side of the screening motor (21) is slidably connected to the inner wall of the screening box (12).

3. The feeding device for processing plastic boxes according to claim 2, characterized in that: The heating zone (2) is rotatably connected to a stirring assembly (9), and the motor end of the stirring assembly (9) is fixedly connected to the outer wall of the heating zone (2).

4. The feeding device for processing plastic boxes according to claim 1, characterized in that: An exhaust hood (15) is fixedly connected above the screening area (1), an exhaust fan (16) is fixedly connected to the exhaust outlet of the exhaust hood (15), and a filter box (17) is fixedly connected to the exhaust outlet of the exhaust fan (16).

5. The feeding device for processing plastic boxes according to claim 4, characterized in that: An air intake hood (23) is fixedly connected below the screening area (1), and a heating element (24) is fixedly connected to the air intake end of the air intake hood (23).

6. The feeding device for processing plastic boxes according to claim 1, characterized in that: A feeding plate (3) is rotatably connected to one side of the heating zone (2), and a horizontal support plate (4) and a feeding stop bar (5) are fixedly connected to the top of the heating zone (2).

7. The feeding device for processing plastic boxes according to claim 6, characterized in that: The feeding plate (3) is fixedly connected to two clamping frames (6) on both sides. Two clamping plates (8) are slidably connected inside the clamping frame (6). A double-headed screw (7) is rotatably connected inside the clamping frame (6). The two ends of the double-headed screw (7) are threaded to the screw nut on one side of the clamping plate (8).

8. The feeding device for processing plastic boxes according to claim 1, characterized in that: The screening box (12) is fixedly connected to two sides by movable baffles (22), which are slidably connected to both sides of the screening area (1).

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