A feeding device for producing plastic granules for supercritical foaming board production

Abstract

This utility model belongs to the field of plastic granule feeding technology, specifically a feeding device for plastic granules in supercritical foaming board production. It includes a housing and a screening component slidably disposed within the housing. The screening component is connected to a fixed block, and an eccentric block is located below the fixed block. The rotation of the eccentric block drives the screening component to move via the fixed block. A negative pressure fan is included, with its suction end connected to a collection box via a connecting pipe. The top of the collection box is connected to the housing via a connecting hopper. The negative pressure fan is used to create negative pressure in the collection box to adsorb dust. This utility model can screen plastic granules, and the screening component can reciprocate vertically to accelerate the screening rate of the plastic granules, while also collecting dust.

Description

Technical Field

[0001] This utility model belongs to the field of plastic granule feeding technology, and in particular relates to a feeding device for plastic granules in the production of supercritical foamed boards. Background Technology

[0002] Supercritical foam board is a microporous plastic sheet made by using supercritical fluid as a physical foaming agent and through a specific process. It has the advantages of being lightweight, heat-insulating, sound-insulating and environmentally friendly. It is widely used in packaging, construction, automobiles, electronics, home appliances and new energy (such as lithium battery heat insulation sheets). In the production process of supercritical foam board, a feeding device is required to add plastic granule raw materials to the processing equipment.

[0003] After plastic granules are fed into the feeding device, a large amount of dust will be generated during the feeding process because the plastic granules generally contain some dust and plastic waste. The dust can easily spread to the workshop environment, causing dust pollution and endangering the health of operators. In addition, the dust mixed in with the plastic granules will enter the foaming equipment with the granules, resulting in problems such as uneven distribution of bubbles and collapse of the cell structure during the foaming process.

[0004] To address the aforementioned issues, this application proposes a feeding device for producing plastic granules for supercritical foaming board production. Utility Model Content

[0005] The purpose of this invention is to provide a feeding device for producing plastic granules in supercritical foaming board production, which solves the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model relates to a feeding device for producing plastic granules for supercritical foaming boards. It includes a box body and a screening component slidably disposed within the box body. The screening component is connected to a fixed block, and an eccentric block is provided below the fixed block. The rotation of the eccentric block drives the screening component to move through the fixed block. A negative pressure fan is provided, with its suction end connected to a collection box via a connecting pipe. The top of the collection box is connected to the box body via a connecting hopper. The negative pressure fan is used to create negative pressure in the collection box to adsorb dust.

[0008] Furthermore, the screening assembly includes an upper frame and a lower frame, with a first sieve plate and a second sieve plate fixedly installed inside the upper frame and the lower frame, respectively. A connecting rod and a connecting plate are fixedly installed on both sides of the bottom surface of the upper frame, and the connecting rod and the connecting plate are both fixedly connected to the top of the lower frame.

[0009] Furthermore, a sliding sleeve one and a sliding sleeve two are respectively provided on both sides of the bottom end of the lower frame. A sliding plate and a sliding block are slidably provided in the sliding sleeve one and the sliding sleeve two, respectively. The bottom ends of the sliding plate and the sliding block are fixed to the bottom plate of the box through a fixed plate and a fixed column, respectively. A spring is provided in the sliding sleeve one with its two ends fixed to the sliding plate and the sliding sleeve one, respectively. A spring is provided in the sliding sleeve two with its two ends fixed to the sliding sleeve two and the sliding block, respectively.

[0010] Furthermore, a rotating shaft is rotatably mounted on the top plate of the housing, and separation rods are evenly provided on the outer wall of the rotating shaft. Two meshing bevel gears are provided on the top of the housing. One bevel gear is fixed coaxially with the top of the rotating shaft through a rotating shaft, and the other bevel gear is fixedly connected to the output shaft of motor one. The bottom end of motor one is fixedly connected to the outer wall of the housing through a fixed seat.

[0011] Furthermore, a rotating column is rotatably installed inside the housing, and an eccentric block is fixedly connected to the outer wall of the rotating column. Two pulleys connected by belts are provided on the outer side of the housing. One pulley is fixedly connected to the outer wall of an output shaft of the motor, and the other pulley is fixedly connected to the rotating column through a rotating shaft.

[0012] Furthermore, the two side walls of the box are respectively provided with an upper discharge port and a lower discharge port, and the upper frame and the lower frame are both inclined in opposite directions.

[0013] Furthermore, a baffle is provided inside the upper discharge port, and fixed shafts that are rotatably connected to the box body are fixed on both sides of the baffle. A motor with its output end fixed to the fixed shaft is fixed on the outer wall of the box body.

[0014] This utility model has the following beneficial effects:

[0015] This utility model uses a screening component to screen plastic particles. Under the rotation of the eccentric block and the action of gravity, the fixed block and the screening component reciprocate, thereby improving the screening rate.

[0016] This invention uses a negative pressure fan to create a negative pressure environment in the collection box and inside the box to absorb dust or waste. The collection box is used to collect dust, which can reduce dust pollution and prevent dust from mixing with plastic particles and affecting the production quality of supercritical foamed boards.

[0017] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall appearance structure of this utility model;

[0020] Figure 2 This is a schematic cross-sectional view of the box structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the screening component and eccentric block structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the screening component structure of this utility model;

[0023] Figure 5 This is a partial structural schematic diagram of the present invention;

[0024] The attached diagram lists the components represented by each number as follows:

[0025] In the diagram: 1. Box body; 101. Upper discharge port; 102. Lower discharge port; 2. Screening assembly; 201. Upper frame; 202. Lower frame; 203. Connecting rod; 204. Connecting plate; 3. Screen plate one; 4. Screen plate two; 5. Sliding sleeve one; 6. Sliding plate; 7. Fixed plate; 8. Sliding sleeve two; 9. Sliding block; 10. Fixed column; 11. Rotating shaft; 1101. Separating rod; 12. Bevel gear; 13. Motor one; 1301. Fixed seat; 14. Pulley; 15. Rotating column; 16. Eccentric block; 17. Fixed block; 18. Collection box; 1801. Connecting hopper; 19. Negative pressure fan; 20. Baffle; 2001. Fixed shaft; 21. Motor two. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] In the description of this utility model, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around" and other terms indicating orientation or positional relationship are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0028] Please see Figure 1 - Figure 5 As shown, this utility model is a feeding device for producing plastic granules for supercritical foaming board production. It includes a box body 1 and a screening component 2, which is slidably disposed in the box body 1. The screening component 2 is connected to a fixed block 17, and an eccentric block 16 is provided below the fixed block 17. The rotation of the eccentric block 16 drives the screening component 2 to move through the fixed block 17. A negative pressure fan 19 is connected to a collection box 18 through a connecting pipe at its suction end. The top of the collection box 18 is connected to the box body 1 through a connecting bucket 1801. The negative pressure fan 19 is used to generate negative pressure in the collection box 18 to adsorb dust.

[0029] This embodiment provides a feeding device for producing plastic granules in supercritical foaming board production. The top of the box 1 is connected to a feed pipe for feeding plastic granules. After the plastic granules are fed, they are screened by the screening component 2 to remove plastic granules that do not meet the size requirements. During screening, the eccentric block 16 rotates, driving the fixed block 17 and the screening component 2 to move upward. Then, under the action of gravity, the screening component 2 and the fixed block 17 move downward, realizing the up-and-down reciprocating movement of the screening component 2 and improving the screening rate. A large amount of dust is generated during the feeding and screening of plastic granules. The negative pressure fan 19 creates negative pressure in the collection box 18 to adsorb the dust, preventing the dust from spreading and polluting the environment. It can also prevent dust from mixing into the plastic granules and affecting subsequent production.

[0030] The screening component 2 includes an upper frame 201 and a lower frame 202. A first sieve plate 3 and a second sieve plate 4 are fixedly installed inside the upper frame 201 and the lower frame 202, respectively. A connecting rod 203 and a connecting plate 204 are fixedly installed on both sides of the bottom surface of the upper frame 201, and the connecting rod 203 and the connecting plate 204 are both fixedly connected to the top of the lower frame 202. The aperture of the first sieve plate 3 is larger than that of the second sieve plate 4. The first sieve plate 3 is used to block large-diameter plastic particles, and the second sieve plate 4 is used to separate plastic particles from dust or waste. The dust or waste falls below the screening component 2 through the second sieve plate 4 and finally enters the collection box 18.

[0031] The lower frame 202 has a sliding sleeve 5 and a sliding sleeve 8 on both sides of its bottom end. A sliding plate 6 and a sliding block 9 are slidably installed inside the sliding sleeve 5 and the sliding sleeve 8, respectively. The bottom ends of the sliding plate 6 and the sliding block 9 are fixed to the bottom plate of the box 1 through a fixed plate 7 and a fixed column 10, respectively. The sliding sleeve 5 has springs at both ends fixed to the sliding plate 6 and the sliding sleeve 5, respectively. The sliding sleeve 8 has springs at both ends fixed to the sliding sleeve 8 and the sliding block 9, respectively. When the screening component 2 moves back and forth, the springs can buffer the vibration of the screening component 2.

[0032] The top plate of the housing 1 is rotatably mounted with a rotating shaft 11, and the outer wall of the rotating shaft 11 is evenly provided with separation rods 1101. Two meshing bevel gears 12 are provided above the housing 1. One bevel gear 12 is fixed coaxially with the top of the rotating shaft 11 through a rotating shaft, and the other bevel gear 12 is fixedly connected to the output shaft of the motor 13. The bottom end of the motor 13 is fixedly connected to the outer wall of the housing 1 through a fixing seat 1301. The motor 13 drives the bevel gear 12 to rotate, which in turn drives the rotating shaft 11 and the separation rods 1101 to rotate. Plastic particles may clump together during cleaning or storage. The separation rods 1101 break up the clumped plastic particles. In addition, the separation rods 1101 can also move the plastic particles on the screening component 2 to facilitate the screening of plastic particles. The top of the housing 1 is provided with a protective shell, and the bevel gears 12 are all placed inside the protective shell to prevent dust from affecting the transmission effect of the bevel gears 12.

[0033] The housing 1 has a rotating column 15 rotatably mounted inside it, and an eccentric block 16 is fixedly connected to the outer wall of the rotating column 15. The outer side of the housing 1 is provided with two pulleys 14 connected by belts. One pulley 14 is fixedly connected to the outer wall of the output shaft of the motor 13, and the other pulley 14 is fixedly connected to the rotating column 15 through a rotating shaft. The motor 13 can also drive the pulley 14 to rotate, and further drive the eccentric block 16 to rotate through the rotating column 15.

[0034] The box 1 has an upper discharge port 101 and a lower discharge port 102 on its two side walls. The upper frame 201 and the lower frame 202 are both inclined in opposite directions. The upper frame 201 is inclined so that the screen plate 3 is inclined to guide the plastic particles it intercepts to flow to the upper discharge port 101 for discharge. The lower frame 202 is inclined so that the screen plate 4 is inclined to guide the plastic particles it intercepts to flow to the lower discharge port 102 for discharge. During the vibration of the screening component 2, after the upper frame 201 moves up, a gap may be generated between the bottom end of the upper frame 201 and the upper discharge port 101. The upper discharge port 101 at the bottom end of the upper frame 201 is blocked by the sliding sleeve 5 to prevent plastic particles from falling below the screening component 2.

[0035] The upper discharge port 101 is provided with a baffle 20, and fixed shafts 2001 that are rotatably connected to the box body 1 are fixed on both sides of the baffle 20. The outer wall of the box body 1 is fixed with a motor 21 whose output end is fixed to the fixed shafts 2001. The motor 21 drives the baffle 20 to rotate through the fixed shafts 2001 to open the lower discharge port 102, so that the plastic particles intercepted by the upper frame 201 can be discharged.

[0036] It is understood that this utility model can screen plastic particles, and the screening component 2 can move vertically back and forth to accelerate the screening rate of plastic particles, and secondly, collect dust.

[0037] A specific application of the operation process in this embodiment is as follows: Start the motor 13 and the negative pressure fan 19, put the plastic particles into the box 1, the separating rod 1101 rotates to break up the clumps of plastic particles, and the plastic particles are screened by the screening component 2. During screening, the screening component 2 vibrates back and forth under the action of the eccentric block 16, the fixed block 17 and the spring to increase the screening rate of plastic particles. Large-diameter plastic particles are intercepted by the upper frame 201, and the lower frame 202 is used to separate the plastic particles from dust or waste. The plastic particles are discharged through the upper discharge port 101. The negative pressure fan 19 causes the collection box 18 to generate negative pressure to collect the dust and waste passing through the screening component 2.

[0038] In the description of this specification, references to terms such as "an embodiment," "example," and "specific example" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0039] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A supercritical foaming panel production plastic particle feeding device comprising a box (1), characterized in that, Also includes: The screening component (2) is slidably disposed inside the box (1). The screening component (2) is connected to a fixed block (17), and an eccentric block (16) is provided below the fixed block (17). The eccentric block (16) rotates through the fixed block (17) to drive the screening component (2) to move. The negative pressure fan (19) has its suction end connected to the collection box (18) through a connecting pipe. The top of the collection box (18) is connected to the box body (1) through a connecting bucket (1801). The negative pressure fan (19) is used to generate negative pressure in the collection box (18) to adsorb dust.

2. A plastic pellet feeding device for supercritical foamed sheet production according to claim 1, characterized in that: The screening component (2) includes an upper frame (201) and a lower frame (202). A first sieve plate (3) and a second sieve plate (4) are fixedly installed in the upper frame (201) and the lower frame (202), respectively. A connecting rod (203) and a connecting plate (204) are fixedly installed on both sides of the bottom surface of the upper frame (201), and the connecting rod (203) and the connecting plate (204) are both fixedly connected to the top of the lower frame (202).

3. The feeding device for producing plastic granules for supercritical foaming board production according to claim 2, characterized in that: The lower frame (202) is provided with a sliding sleeve one (5) and a sliding sleeve two (8) on both sides of the bottom end. A sliding plate (6) and a sliding block (9) are slidably provided in the sliding sleeve one (5) and the sliding sleeve two (8). The bottom ends of the sliding plate (6) and the sliding block (9) are fixed to the bottom plate of the box (1) through a fixing plate (7) and a fixing column (10). The sliding sleeve one (5) is provided with a spring whose two ends are fixed to the sliding plate (6) and the sliding sleeve one (5) respectively. The sliding sleeve two (8) is provided with a spring whose two ends are fixed to the sliding sleeve two (8) and the sliding block (9) respectively.

4. The feeding device for producing plastic granules for supercritical foaming board production according to claim 1, characterized in that: The top plate of the housing (1) is rotatably mounted with a rotating shaft (11), and the outer wall of the rotating shaft (11) is uniformly provided with separation rods (1101). Two meshing bevel gears (12) are provided above the housing (1). One bevel gear (12) is coaxially fixed to the top of the rotating shaft (11) through a rotating shaft, and the other bevel gear (12) is fixedly connected to the output shaft of motor one (13). The bottom end of motor one (13) is fixedly connected to the outer wall of the housing (1) through a fixing seat (1301).

5. The feeding device for producing plastic granules for supercritical foaming board production according to claim 4, characterized in that: The housing (1) is rotatably mounted with a rotating column (15), and the eccentric block (16) is fixedly connected to the outer wall of the rotating column (15). The outer side of the housing (1) is provided with two pulleys (14) connected by belts. One pulley (14) is fixedly connected to the outer wall of the output shaft of motor (13), and the other pulley (14) is fixedly connected to the rotating column (15) through a rotating shaft.

6. The feeding device for producing plastic granules for supercritical foaming board production according to claim 2, characterized in that: The box body (1) has an upper discharge port (101) and a lower discharge port (102) on its two side walls respectively. The upper frame (201) and the lower frame (202) are both inclined and in opposite directions.

7. The feeding device for producing plastic granules for supercritical foaming board production according to claim 6, characterized in that: The upper discharge port (101) is provided with a baffle (20), and fixed shafts (2001) that are rotatably connected to the box body (1) are fixed on both sides of the baffle (20). The outer wall of the box body (1) is provided with a motor (21) whose output end is fixedly connected to the fixed shaft (2001).

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