A polyurethane foam shredding and recycling device

Abstract

The utility model relates to polyurethane recycling technical field, concretely is a kind of polyurethane foam crushing recycling device, including crushing box, symmetrically being provided with crushing assembly on the upper end of crushing box, the sidewall lower portion of crushing box is equipped with mounting bracket, the top surface of mounting bracket is equipped with air pump, air pump and crushing box are equipped with adjusting assembly between cooperation, adjusting assembly is equipped with filter screen in cooperation, the bottom surface one side of crushing box is equipped with mounting plate, the sidewall of mounting plate is equipped with the plug-in slot, the plug-in slot is inserted with collection component, the utility model is equipped with adjusting assembly and air pump in polyurethane foam crushing recycling device, in the process of device use, by the cooperation between above-mentioned structure, make filter screen change into horizontal design, and make filter screen repeatedly shake by adjusting assembly, to improve screening efficiency and the effect that screening is more sufficient.

Description

Technical Field

[0001] This utility model relates to the field of polyurethane recycling technology, specifically a polyurethane foam crushing and recycling device. Background Technology

[0002] A polyurethane foam crushing and recycling device is a specialized piece of equipment used for the physical crushing, separation, and resource recovery of waste polyurethane foam (PUF), aiming to achieve efficient recycling and reuse of waste polyurethane materials. For example, the prior art represented by the polyurethane recycling and pulverizing device (publication number CN212218972U) in the prior art includes a pulverizing box, a material channel, a blower, and a motor. A main pulverizing wheel is rotatably mounted on one side of the pulverizing box, and an auxiliary pulverizing wheel is rotatably mounted on the other side. The main pulverizing wheel and the auxiliary pulverizing wheel are connected. The bottom outlet of the pulverizing box is fixedly connected to the higher end of the material channel. An air pipe is inserted and fixed inside the higher end of the material channel. The end of the air pipe facing away from the material channel is connected to the blower. A 50-mesh screen is embedded and fixed at the bottom of the material channel. A second discharge channel is fixed at the bottom surface of the material channel, and a first discharge channel is fixed at the lower end of the material channel, and the first discharge channel communicates with the interior of the material channel. This utility model has the advantage of facilitating the subsequent recycling process of the pulverized foamed plastic, thus effectively solving the problems of the prior art. However, its structure still needs improvement, specifically as follows: In the process of using existing technology, under the condition of the blower blowing, the crushed polyurethane fragments will be blown along the material channel. Since the screen and pipe are both designed with an inclination, the inclination structure relies on gravity to make the material slide down. However, the upward airflow generated by the blower weakens the effect of gravity, and some fine fragments are directly blown away from the screen surface, which leads to the problem of insufficient screening. Therefore, a polyurethane foam crushing and recycling device is needed to improve the above-mentioned problems. Utility Model Content

[0003] To address the problem that existing technologies, when used with a blower, cause pulverized polyurethane fragments to slide down the feed channel, where the inclined design of the screen and pipe relies on gravity to allow the material to slide down, but the upward airflow generated by the blower weakens the effect of gravity, resulting in some fine fragments being blown directly off the screen surface and leading to insufficient screening, this invention provides a polyurethane foam pulverizing and recycling device to solve the above-mentioned problems.

[0004] To achieve the above objectives, this utility model provides the following technical solution: A polyurethane foam crushing and recycling device includes a crushing box, crushing components symmetrically arranged on the upper end of the crushing box, an installation frame installed on the lower side wall of the crushing box, an air pump installed on the top surface of the installation frame, an adjustment component installed between the air pump and the crushing box, a filter screen installed in the adjustment component, an installation plate installed on one side of the bottom surface of the crushing box, and an insertion groove opened on the side wall of the installation plate, into which a collection component is inserted.

[0005] As a preferred embodiment of this utility model, the adjustment component includes a mounting frame, the mounting frame is fitted into the side wall of the crushing box, a movable plate is slidably disposed in the mounting frame, and the filter screen is installed on the side of the movable plate near the inner cavity of the crushing box; Multiple springs are evenly installed on the side of the filter screen away from the moving plate. The sides of the multiple springs away from the filter screen are respectively connected to the inner wall of the crushing box. A shielding cloth is installed above the side of the filter screen away from the moving plate. The end of the shielding cloth away from the filter screen is connected to the inner wall of the crushing box.

[0006] As a preferred embodiment of this utility model, a vent pipe is installed on the bottom surface of the mounting frame, the vent pipe is connected to the inner cavity of the mounting frame, and a solenoid valve is installed on the outer wall of the vent pipe. A ventilation pipe is installed on the end face of the mounting frame, and a solenoid valve is installed on the outer wall of the ventilation pipe.

[0007] As a preferred embodiment of this utility model, a protective plate is installed in the inner cavity of the crushing box and on the side near the mounting frame. A fixing frame is installed inside the protective plate. The ventilation pipe sequentially passes through the outer wall of the crushing box, the protective plate and the side wall of the fixing frame, and the ventilation pipe is connected to the interior of the fixing frame. A through groove is provided on the lower side of the fixed frame away from the ventilation pipe.

[0008] As a preferred embodiment of this utility model, limit blocks are respectively installed on the left and right sides of the inner wall of the crushing box, and the top surface of the limit blocks is connected to the bottom surface of the protective plate. A connecting pipe is installed on the side of the mounting frame away from the crushing chamber, and the connecting pipe is connected to the air outlet of the air pump.

[0009] As a preferred embodiment of this utility model, a collection assembly including a collection box is installed on the side wall of the mounting plate, and a plug-in block is installed on the side wall of the collection box, the plug-in block being inserted into a plug-in slot; The crushing box has a discharge chute on the side away from the mounting frame, and a discharge pipe is installed in the inner cavity of the discharge chute.

[0010] As a preferred embodiment of this utility model, an installation block is installed on the side wall of the collection box, a collection groove is opened on the end face of the installation block, and a rubber sleeve is provided on the end face of the installation block and around the collection groove. The inner side of the rubber sleeve is in contact with the outer wall of the discharge pipe.

[0011] As a preferred embodiment of this utility model, a control panel is installed on the side wall of the crushing box.

[0012] Compared with the prior art, this utility model improves screening efficiency and achieves more thorough screening by setting an adjustment component and an air pump in the polyurethane foam crushing and recycling device. During the use of the device, the above structures cooperate with each other to change the filter screen to a horizontal design, and the adjustment component makes the filter screen shake repeatedly, thereby improving screening efficiency and achieving more thorough screening.

[0013] Compared with the prior art, this utility model sets up an adjustment component, a collection component, and an air pump in the polyurethane foam crushing and recycling device. By closing solenoid valve two and opening solenoid valve one, the airflow injected into the mounting frame by the air pump cannot be discharged through the vent pipe, but can only flow out through the ventilation pipe. Thus, the airflow flows from the ventilation pipe to the fixed frame and finally exits through the through groove. The airflow rushing out of the through groove blows the impurities and debris on the top surface of the filter screen and blows the debris towards the direction of the discharge pipe. Finally, the debris flows into the collection tank through the discharge pipe for collection, achieving the effect of efficient and dust-free collection of debris on the end face of the filter screen. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the front view structure of this utility model; Figure 2 This is a schematic diagram of the rear view structure of this utility model; Figure 3 This is a side view of the structure of this utility model; Figure 4 This is a side sectional view of the present invention. Figure 5 This is a schematic diagram of the adjustment component structure in this utility model; Figure 6 This is a cross-sectional view of the adjustment component in this utility model; Figure 7 This is a schematic diagram of the collecting component structure in this utility model.

[0015] In the diagram: 1. Crushing box; 2. Collection assembly; 201. Collection box; 202. Mounting block; 203. Collection trough; 204. Rubber sleeve; 205. Insertion block; 3. Control panel; 4. Unloading pipe; 5. Crushing assembly; 6. Air pump; 7. Adjustment assembly; 701. Mounting frame; 702. Moving plate; 703. Ventilation pipe; 704. Solenoid valve one; 705. Protective plate; 706. Fixing frame; 707. Spring; 708. Covering cloth; 709. Ventilation pipe; 710. Solenoid valve two; 711. Connecting pipe; 712. Through groove; 8. Mounting bracket; 9. Insertion groove; 10. Mounting plate; 11. Limiting block; 12. Filter screen; 13. Discharge trough. Detailed Implementation

[0016] 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. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0017] Example: Please refer to Figure 1 - Figure 7 The polyurethane foam crushing and recycling device shown includes a crushing box 1, crushing components 5 symmetrically arranged on the upper end of the crushing box 1, a mounting frame 8 installed on the lower side wall of the crushing box 1, an air pump 6 installed on the top surface of the mounting frame 8, an adjustment component 7 installed between the air pump 6 and the crushing box 1, a filter screen 12 installed in the adjustment component 7, a mounting plate 10 installed on one side of the bottom surface of the crushing box 1, an insertion groove 9 opened on the side wall of the mounting plate 10, a collection component 2 inserted into the insertion groove 9, and a control panel 3 installed on the side wall of the crushing box 1. The crushing component 5 has the same structural composition and working principle as the crushing structure in the prior art polyurethane recycling crushing device (publication number CN212218972U), so it will not be described in detail here.

[0018] In this embodiment, specific references Figure 1 - Figure 6The adjusting component 7 includes a mounting frame 701. The mounting frame 701 is fitted into the side wall of the crushing box 1. A movable plate 702 is slidably disposed in the mounting frame 701. A filter screen 12 is installed on the side of the movable plate 702 near the inner cavity of the crushing box 1. Multiple springs 707 are evenly installed on the side of the filter screen 12 away from the movable plate 702. The sides of the multiple springs 707 away from the filter screen 12 are respectively connected to the inner side wall of the crushing box 1. A shielding cloth 708 is installed above the side of the filter screen 12 away from the movable plate 702. One end of the shielding cloth 708 away from the filter screen 12 is connected to the inner wall of the crushing box 1. A vent pipe 709 is installed on the bottom surface of the mounting frame 701. The vent pipe 709 connects to the inner cavity of the mounting frame 701. A solenoid valve 710 is installed on the outer wall of the vent pipe 709. A ventilation pipe 703 is installed on the end face of the mounting frame 701, and a solenoid valve 704 is installed on the outer wall of the ventilation pipe 703. When the air pump 6 is started, airflow is injected into the mounting frame 701 through the connecting pipe 711. When airflow is injected into the mounting frame 701, the moving plate 702 and the filter screen 12 are pushed by the injected airflow. When the moving plate 702 moves away from the vent pipe 709, the airflow inside the solenoid valve 710 is discharged from the vent pipe 709. At this time, the air pressure in the mounting frame 701 will decrease. Then, under the action of the spring 707, the filter screen 12 and the moving plate 702 will be reset. With the continuous use of the air pump 6, the filter screen 12 will continuously shake, thereby improving the filtration efficiency of the filter screen 12. Furthermore, the shielding cloth 708 is used to isolate the gap between the filter screen 12 and the pulverizing box 1, so as to prevent some pulverized material from entering the collection box 201 directly without being filtered by the filter screen 12.

[0019] In this embodiment, specific references Figure 1 - Figure 7 The inner cavity of the crushing box 1 is equipped with a protective plate 705 on the side near the mounting frame 701. A fixing frame 706 is installed inside the protective plate 705. A ventilation pipe 703 sequentially passes through the outer wall of the crushing box 1, the side wall of the protective plate 705 and the fixing frame 706, and the ventilation pipe 703 connects to the inside of the fixing frame 706. A through groove 712 is opened on the lower side of the fixing frame 706 away from the ventilation pipe 703. Limiting blocks 11 are installed on the left and right sides of the inner wall of the crushing box 1 respectively. The top surface of the limiting block 11 is connected to the bottom surface of the protective plate 705. A connecting pipe 711 is installed on the side of the mounting frame 701 away from the crushing box 1. The connecting pipe 711 is connected to the air outlet of the air pump 6. During this process, some debris and impurities that cannot pass through the filter screen 12 will accumulate on the top surface of the filter screen 12. At this time, the second solenoid valve 710 is closed and the first solenoid valve 704 is opened. At this time, the airflow injected by the air pump 6 into the mounting frame 701 cannot be discharged through the vent pipe 709, but can only flow out through the ventilation pipe 703. Thus, the airflow flows from the ventilation pipe 703 to the fixed frame 706, and finally is discharged through the through groove 712. Thus, the airflow rushing out of the through groove 712 will blow away the impurities and debris on the top surface of the filter screen 12, and blow the debris towards the direction of the discharge pipe 4. Finally, it flows into the collection tank 203 through the discharge pipe 4 for collection. Furthermore, the protective plate 705 is designed to isolate the gap between the fixing frame 706 and the crushing box 1, preventing debris from falling between them.

[0020] In this embodiment, specific references Figure 1 - Figure 7 The side wall of the mounting plate 10 is equipped with a collection assembly 2 including a collection box 201. The side wall of the collection box 201 is equipped with a plug-in block 205, which is inserted into the plug-in groove 9. The crushing box 1 is provided with a discharge trough 13 on the side away from the mounting frame 701. A discharge pipe 4 is installed in the inner cavity of the discharge trough 13. The side wall of the collection box 201 is equipped with a mounting block 202. A collection groove 203 is provided on the end face of the mounting block 202. A rubber sleeve 204 is provided on the end face of the mounting block 202 and around the collection groove 203. The inner side of the rubber sleeve 204 is in contact with the outer wall of the discharge pipe 4. When the plug-in block 205 is plugged into the plug-in slot 9, it is convenient to position the entire collection component 2. The collection box 201 is located below the crushing box 1, and the debris screened by the filter screen 12 will enter the inner cavity of the collection box 201. Furthermore, when inserting the plug block 205 into the plug slot 9, the position of the rubber sleeve 204 is adjusted so that the inner side of the rubber sleeve 204 fits against the outer wall of the discharge pipe 4. This prevents impurities on the top surface of the filter screen 12 from flying into the air when they move from the discharge pipe 4 into the collection tank 203, thus improving the environmental quality around the device during recycling.

[0021] When the polyurethane foam crushing and recycling device of this scheme is working, the polyurethane foam is put into the crushing box 1 from above. Then, under the action of the crushing component 5, the polyurethane foam is crushed and the crushed debris falls onto the filter screen 12. At this time, the second solenoid valve 710 is opened, and the air pump 6 is started to inject airflow into the mounting frame 701 through the connecting pipe 711. When airflow is injected into the mounting frame 701, the moving plate 702 and the filter screen 12 are pushed by the injected airflow. When the moving plate 702 moves away from the top of the vent pipe 709, the airflow inside the second solenoid valve 710 is discharged from the vent pipe 709. At this time, the air pressure in the mounting frame 701 will decrease. Then, under the action of the spring 707, the filter screen 12 and the moving plate 702 will be reset. With the continuous use of the air pump 6, the filter screen 12 will continuously shake, thereby improving the filtration efficiency of the filter screen 12. As the processing time increases, some debris and impurities that cannot pass through the filter screen 12 will accumulate on the top surface of the filter screen 12. At this time, the second solenoid valve 710 is closed and the first solenoid valve 704 is opened. At this time, the airflow of the mounting frame 701 cannot be discharged through the vent pipe 709, but can only flow out through the ventilation pipe 703. Thus, the airflow flows from the ventilation pipe 703 to the fixed frame 706, and finally is discharged through the through groove 712. Thus, the airflow rushing out of the through groove 712 will blow away the impurities and debris on the top surface of the filter screen 12, and blow the debris towards the direction of the discharge pipe 4. Finally, it flows into the collection tank 203 through the discharge pipe 4 for collection, achieving the effect of quickly collecting the filtered debris.

[0022] The air pump 6, solenoid valve 704, solenoid valve 710 and control panel 3 used in this utility model are all existing electrical devices and can be purchased and used directly on the market. Their structure, circuit and control principle are all existing technologies. Therefore, the structure, circuit and control principle of the air pump 6, solenoid valve 704, solenoid valve 710 and control panel 3 will not be described in detail here.

[0023] All standard parts used in this application can be purchased from the market. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art and are also general components, which are common knowledge in this field.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A polyurethane foam crushing and recycling device, comprising a crushing chamber (1), characterized in that: The upper end of the crushing box (1) is symmetrically provided with crushing components (5), and a mounting frame (8) is installed below the side wall of the crushing box (1). An air pump (6) is installed on the top surface of the mounting frame (8). An adjustment component (7) is installed between the air pump (6) and the crushing box (1). A filter screen (12) is installed in the adjustment component (7). A mounting plate (10) is installed on one side of the bottom surface of the crushing box (1). A insertion groove (9) is opened on the side wall of the mounting plate (10). A collection component (2) is inserted into the insertion groove (9).

2. The polyurethane foam crushing and recycling device according to claim 1, characterized in that: The adjustment component (7) includes a mounting frame (701), the mounting frame (701) is fitted into the side wall of the crushing box (1), a movable plate (702) is slidably arranged in the mounting frame (701), and the filter screen (12) is installed on the side of the movable plate (702) near the inner cavity of the crushing box (1); Multiple springs (707) are evenly installed on the side of the filter screen (12) away from the moving plate (702). The side of the multiple springs (707) away from the filter screen (12) is connected to the inner wall of the crushing box (1). A shielding cloth (708) is installed above the side of the filter screen (12) away from the moving plate (702). The end of the shielding cloth (708) away from the filter screen (12) is connected to the inner wall of the crushing box (1).

3. The polyurethane foam crushing and recycling device according to claim 2, characterized in that: A vent pipe (709) is installed on the bottom surface of the mounting frame (701). The vent pipe (709) is connected to the inner cavity of the mounting frame (701). A solenoid valve (710) is installed on the outer wall of the vent pipe (709). A ventilation pipe (703) is installed on the end face of the mounting frame (701), and a solenoid valve (704) is installed on the outer wall of the ventilation pipe (703).

4. The polyurethane foam crushing and recycling device according to claim 3, characterized in that: The inner cavity of the crushing box (1) is provided with a protective plate (705) on the side near the mounting frame (701). A fixed frame (706) is installed inside the protective plate (705). The ventilation pipe (703) passes through the outer wall of the crushing box (1), the protective plate (705) and the side wall of the fixed frame (706) in sequence, and the ventilation pipe (703) connects to the interior of the fixed frame (706). A through groove (712) is provided on the side of the fixed frame (706) away from the ventilation pipe (703).

5. A polyurethane foam crushing and recycling device according to claim 4, characterized in that: Limiting blocks (11) are installed on the left and right sides of the inner wall of the crushing box (1), and the top surface of the limiting block (11) is connected to the bottom surface of the protective plate (705). A connecting pipe (711) is installed on the side of the mounting frame (701) away from the crushing box (1), and the connecting pipe (711) is connected to the air outlet of the air pump (6).

6. The polyurethane foam crushing and recycling device according to claim 1, characterized in that: The side wall of the mounting plate (10) is equipped with a collection assembly (2) including a collection box (201), and the side wall of the collection box (201) is equipped with a plug-in block (205), which is inserted into the plug-in slot (9); The crushing box (1) has a discharge trough (13) on the side away from the mounting frame (701), and a discharge pipe (4) is installed in the inner cavity of the discharge trough (13).

7. A polyurethane foam crushing and recycling device according to claim 6, characterized in that: The side wall of the collection box (201) is equipped with an installation block (202), and the end face of the installation block (202) is provided with a collection groove (203). The end face of the installation block (202) and the surrounding area of ​​the collection groove (203) are provided with a rubber sleeve (204), and the inner side of the rubber sleeve (204) is in contact with the outer wall of the discharge pipe (4).

8. A polyurethane foam crushing and recycling device according to claim 1, characterized in that: The side wall of the crushing box (1) is equipped with a control panel (3).

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