Polyurethane foam crushing and recycling device

Abstract

The utility model provides a polyurethane foam smashing and recycling device. The polyurethane foam smashing and recycling device comprises a conveying belt, a smashing machine, an airflow screening machine and a scraping plate. According to the polyurethane foam crushing and recycling device provided by the utility model, the conveying belt is arranged, so that materials in the feeding bin can be conveyed to the crusher through the conveying belt, and the materials are crushed by the crusher and then conveyed to the airflow screening machine through the pipeline to be screened. A material receiving hopper is installed at the position of a feeding port of the smashing machine, the output end of the conveying belt is located above the material receiving hopper, a scraping plate is installed in the material receiving hopper, a brush is installed on one side edge of the scraping plate, and the brush abuts against the bottom side of the conveying belt. And polyurethane foam particles can be brushed down from the conveying belt through the brush and fall into the receiving hopper, so that later site cleaning by operators is reduced, and the labor intensity of the operators is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of recycling equipment, and in particular relates to a polyurethane foam crushing and recycling device. Background Art

[0002] Polyurethane foam is widely used, especially in furniture, bedding, transportation, refrigeration, construction, insulation and other sectors. As a way to recycle polyurethane foam, the discarded polyurethane foam will be crushed and added to the decorative board production materials in a certain proportion, and then mixed with it to make decorative boards. This can improve the strength and thermal insulation effect of the decorative boards.

[0003] At present, the waste polyurethane foam is usually crushed by conveyor belts, and then screened according to the size of the crushed particles for classification to meet the needs of adding different decorative panels during production. However, when the conveyor belt is conveying polyurethane foam, the polyurethane foam is easy to move under the conveyor belt and fall to the ground on site, requiring operators to clean it regularly, which undoubtedly increases the labor intensity of operators. Utility Model Content

[0004] The embodiment of the utility model provides a polyurethane foam crushing and recovery device, aiming to solve the problem in the prior art that polyurethane foam is easily dropped to the ground during use of the polyurethane foam crushing and recovery device, thereby increasing the labor intensity of operators.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: to provide a polyurethane foam crushing and recovery device, comprising:

[0006] A conveyor belt, wherein a feed bin is installed at the feed end of the conveyor belt;

[0007] A pulverizer is installed at the discharge end of the conveyor belt, and a receiving hopper is installed at the feed inlet of the pulverizer, and the receiving hopper is located below the discharge end of the conveyor belt;

[0008] An airflow screening machine, connected to the discharging end of the pulverizer through a pipeline, for screening polyurethane foam particles;

[0009] A scraper is installed inside the receiving hopper, and a brush is installed on one side of the scraper for abutting against the lower side of the conveyor belt to clean the polyurethane foam particles on the lower side of the conveyor belt into the receiving hopper.

[0010] In a possible implementation, an adjusting shaft is also installed inside the receiving hopper, a sleeve is rotatably provided on the outer side of the adjusting shaft, the scraper is fixedly installed on the outer side of the sleeve, and a driving component for driving the brush to press against the conveyor belt is also provided between the scraper and the receiving hopper.

[0011] In a possible implementation, the driving component includes:

[0012] A fixing rod, one end of which is fixedly mounted on the bottom of the scraper and is arranged at an angle with the scraper;

[0013] A sliding sleeve is slidably disposed on the fixing rod along the length direction of the fixing rod, and one end of the sliding sleeve is slidably disposed on the receiving hopper;

[0014] The elastic member is arranged between the fixing rod and the sliding sleeve, and is used for pushing the sliding sleeve to move in a direction away from the scraper.

[0015] In a possible implementation, a roller for abutting against the receiving hopper is rotatably provided at the end of the sliding sleeve.

[0016] In a possible implementation, two limit members are threadedly connected to the adjusting shaft, and the two limit members are respectively located at two ends of the sleeve and are used to limit the movement of the sleeve on the adjusting shaft along the length direction of the adjusting shaft.

[0017] In one possible implementation, an adjustment rod is installed on two opposite outer side walls of the receiving hopper, a mounting hole for installing the adjustment shaft is provided in the middle of the adjustment rod, and the position of the adjustment rod on the receiving hopper has the freedom to be adjusted in the direction of approaching or moving away from the conveyor belt.

[0018] In a possible implementation, two baffles are installed on the outer wall of the receiving hopper, the two baffles are arranged in parallel and spaced apart along the length direction of the adjusting rod, and the adjusting rod is threadedly connected with two positioning members respectively used to abut against the outer sides of the two baffles.

[0019] In a possible implementation, the end of the adjusting shaft passes through the adjusting rod and is located inside the mounting hole, and the end of the adjusting shaft is threadedly connected with a fixing member for abutting against the adjusting rod.

[0020] The scheme shown in the embodiment of the present application, compared with the prior art, is provided with a conveyor belt, the conveyor belt is inclined in the vertical direction, a feed bin is installed at the bottom end of the conveyor belt, the bottom end of the feed bin is connected to the conveyor belt, and the material inside the feed bin can be transported to the crusher through the conveyor belt, and after being crushed by the crusher, it is transported to the airflow screening machine through a pipeline for screening. The feed port of the crusher is located at the top of the crusher, and a receiving hopper is installed at the feed port of the crusher. The output end of the conveyor belt is located above the receiving hopper, and a scraper is installed inside the receiving hopper. A brush is installed on one side of the scraper, and the brush is against the bottom side of the conveyor belt. When the polyurethane foam particles move to the bottom of the conveyor belt with the conveyor belt, the polyurethane foam particles can be brushed off the conveyor belt by the brush and fall into the receiving hopper, so as to prevent the polyurethane foam particles from falling on the ground, effectively keep the workplace clean, reduce the operator's later cleaning of the site, and reduce the operator's labor intensity. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of the structure of a polyurethane foam crushing and recovery device provided in an embodiment of the utility model;

[0022] Figure 2 A schematic diagram of the installation structure of the scraper provided in the embodiment of the utility model;

[0023] Figure 3 A schematic diagram of the connection structure between the adjusting shaft and the adjusting rod provided in an embodiment of the utility model;

[0024] Figure 4 A schematic diagram of the structure of a drive assembly provided in an embodiment of the utility model.

[0025] Description of reference numerals:

[0026] 1. Conveyor belt; 11. Feed bin; 2. Crusher; 21. Receiving hopper; 3. Air flow screening machine; 4. Scraper; 41. Brush; 42. Adjusting shaft; 421. Limiting piece; 422. Fixing piece; 43. Sleeve; 44. Adjusting rod; 441. Positioning piece; 45. Baffle; 5. Driving assembly; 51. Fixing rod; 52. Sliding sleeve; 53. Elastic piece; 54. Roller. DETAILED DESCRIPTION

[0027] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0028] Please also read Figures 1 to 4Now, the polyurethane foam crushing and recovery device provided by the utility model is described. The polyurethane foam crushing and recovery device comprises a conveyor belt 1, a crusher 2, an airflow screening machine 3 and a scraper 4. A feed bin 11 is installed at the feed end of the conveyor belt 1; the crusher 2 is installed at the discharge end of the conveyor belt 1, and a receiving hopper 21 is installed at the feed port of the crusher 2, and the receiving hopper 21 is located below the discharge end of the conveyor belt 1; the airflow screening machine 3 is connected to the discharge end of the crusher 2 through a pipeline, and is used to screen polyurethane foam particles; the scraper 4 is installed inside the receiving hopper 21, and a brush 41 is installed on one side of the scraper 4 for abutting against the lower side of the conveyor belt 1, and is used to clean the polyurethane foam particles on the lower side of the conveyor belt 1 into the receiving hopper 21.

[0029] Compared with the prior art, the polyurethane foam crushing and recovery device provided in this embodiment is provided with a conveyor belt 1, which is inclined in the vertical direction. A feed bin 11 is installed at the bottom end of the conveyor belt 1, and the bottom end of the feed bin 11 is connected to the conveyor belt 1. The material inside the feed bin 11 can be conveyed to the crusher 2 through the conveyor belt 1, and after being crushed by the crusher 2, it can be transported to the airflow screening machine 3 through a pipeline for screening. The feed port of the pulverizer 2 is located at the top of the pulverizer 2, and a receiving hopper 21 is installed at the feed port of the pulverizer 2, the output end of the conveyor belt 1 is located above the receiving hopper 21, and a scraper 4 is installed inside the receiving hopper 21, and a brush 41 is installed at one side of the scraper 4, and the brush 41 is against the bottom side of the conveyor belt 1. When the polyurethane foam particles move with the conveyor belt 1 to the bottom of the conveyor belt 1, the polyurethane foam particles can be brushed off the conveyor belt 1 by the brush 41 and fall into the receiving hopper 21, so as to prevent the polyurethane foam particles from falling to the ground, effectively keep the workplace clean, reduce the operator's later cleaning of the site, and reduce the operator's labor intensity.

[0030] Specifically, in this embodiment, the brush 41 includes a fixing portion for fixing to the scraper 4 and a brush 41 portion for abutting against the bottom of the conveyor belt 1 , and the fixing portion is detachably mounted on the scraper 4 by bolts.

[0031] Preferably, in this embodiment, a magnetic suction machine is also installed in the middle of the conveyor belt 1 to absorb iron filings or iron wires mixed in the polyurethane foam particles.

[0032] In some embodiments, the above-mentioned receiving hopper 21 can be used as follows Figure 2 , Figure 3 and Figure 4 See also Figure 2 , Figure 3 and Figure 4, an adjusting shaft 42 is also installed inside the receiving hopper 21, and a sleeve 43 is rotatably arranged on the outer side of the adjusting shaft 42, and a scraper 4 is fixedly installed on the outer side of the sleeve 43, and a driving assembly 5 for driving the brush 41 to abut against the conveyor belt 1 is also arranged between the scraper 4 and the receiving hopper 21. The two ends of the adjusting shaft 42 are arranged through the two opposite side walls of the receiving hopper 21. A sleeve 43 is sleeved on the outer side of the adjusting shaft 42, and the sleeve 43 is rotatably arranged on the outer side of the adjusting shaft 42. And when the sleeve 43 is installed on the adjusting shaft 42, there is a gap for dropping between the outer side wall of the sleeve 43 and the bottom of the receiving hopper 21, which can facilitate the polyurethane foam particles brushed off by the brush 41 to flow into the inside of the crusher 2 through the gap between the sleeve 43 and the bottom of the receiving hopper 21. Through the arrangement of the driving assembly 5, the brush 41 can always abut against the bottom side of the conveyor belt 1, and at the same time, a certain force is given to the brush 41, so that the polyurethane foam particles can be easily cleared.

[0033] In some embodiments, the drive assembly 5 may be configured as follows: Figure 4 See the structure shown. Figure 4 The driving assembly 5 includes a fixed rod 51, a sliding sleeve 52 and an elastic member 53. One end of the fixed rod 51 is fixedly mounted on the bottom of the scraper 4 and is arranged at an angle with the scraper 4; the sliding sleeve 52 is slidably arranged on the fixed rod 51 along the length direction of the fixed rod 51, and one end of the sliding sleeve 52 is slidably arranged on the receiving hopper 21; the elastic member 53 is arranged between the fixed rod 51 and the sliding sleeve 52, and is used to push the sliding sleeve 52 to move in a direction away from the scraper 4. One end of the fixed rod 51 is fixedly installed on the bottom side of the scraper 4 and is arranged perpendicular to the scraper 4. A limit platform with an outer size larger than the fixed rod 51 is arranged on the outer side of the fixed rod 51. The elastic member 53 is a spring. One end of the spring rests on the limit platform, and the other end of the elastic member 53 rests on the sliding sleeve 52. The setting of the elastic member 53 can drive the sliding sleeve 52 to move away from the scraper 4, and the other end of the sliding sleeve 52 is slidably set at the bottom of the receiving hopper 21, so that the brush 41 can always rest on the lower side of the conveyor belt 1 under the drive of the elastic member 53.

[0034] In some embodiments, the sliding sleeve 52 may be Figure 4 See the structure shown. Figure 4 The end of the sliding sleeve 52 is rotatably provided with a roller 54 for abutting against the receiving hopper 21. The roller 54 is rotatably provided at the bottom end of the sliding sleeve 52, which can facilitate the sliding sleeve 52 to move on the receiving hopper 21. Ensure the stability of the brush 41 attached to the bottom side of the conveyor belt 1.

[0035] In some embodiments, the adjustment shaft 42 may be configured as follows: Figure 3 See the structure shown. Figure 3The adjusting shaft 42 is threadedly connected with two stoppers 421, which are respectively located at the two ends of the sleeve 43 and are used to stop the sleeve 43 from moving along the length direction of the adjusting shaft 42. The middle part of the adjusting shaft 42 is a sliding part that is slidably matched with the sleeve 43. The two ends of the adjusting shaft 42 are provided with threaded parts, and the stoppers 421 are threadedly connected to the threaded parts. The stoppers 421 are nuts. The stoppers 421 are provided at both ends of the sleeve 43. The stoppers 421 are used to stop the sleeve 43 from moving along the length direction of the adjusting shaft 42, so as to improve the stability of the position of the scraper 4.

[0036] Specifically, in the present embodiment, a fastener for fixing the position of the limiter 421 is further provided at some parts of the limiter 421 away from the sleeve 43 , and the fastener is threadedly connected to the adjusting shaft 42 .

[0037] In some embodiments, the adjustment rod 44 may be Figure 3 See the structure shown. Figure 3 , adjustment rods 44 are installed on the two opposite outer walls of the receiving hopper 21, and a mounting hole for installing the adjustment shaft 42 is set in the middle of the adjustment rod 44, and the position of the adjustment rod 44 on the receiving hopper 21 has the freedom to adjust in the direction close to or away from the conveyor belt 1. The two ends of the adjustment shaft 42 are respectively penetrated by two adjustment rods 44, and are fixed on the adjustment rods 44 by bolts. The adjustment direction of the position of the adjustment rod 44 on the receiving hopper 21 is set along the length direction of the adjustment rod 44. The position of the adjustment shaft 42 can be adjusted synchronously by adjusting the position of the adjustment rod 44. The brush 41 is detachably installed on the scraper 4. When the new brush 41 is installed or the brush 41 is worn after being used for a period of time, the position of the scraper 4 can be adjusted to make the brush 41 stably fit on the lower side of the conveyor belt 1.

[0038] In some embodiments, the adjustment rod 44 may be Figure 3 See the structure shown. Figure 3 Two baffles 45 are installed on the outer wall of the receiving hopper 21. The two baffles 45 are arranged in parallel and spaced apart along the length direction of the adjusting rod 44, and the adjusting rod 44 is threadedly connected with two positioning members 441 respectively used to abut against the outer sides of the two baffles 45. The baffles 45 and the adjusting rod 44 are arranged perpendicular to each other. The baffles 45 are fixedly installed on the outer side of the receiving hopper 21 by welding, and a U-shaped groove for installing the adjusting rod 44 is provided on the baffles 45. Positioning members 441 are threadedly connected at both ends of the adjusting rod 44, and the positioning members 441 are nuts. The position of the adjusting rod 44 is adjusted by adjusting the positions of the positioning members 441 at both ends of the adjusting rod 44 and making the two positioning members 441 abut against the baffles 45.

[0039] Specifically, in this embodiment, two adjusting rods 44 located on both sides of the receiving hopper 21 are arranged in parallel with each other.

[0040] In some embodiments, the adjustment shaft 42 may be configured as follows: Figure 2 , Figure 3 See also Figure 2 , Figure 3 , the end of the adjusting shaft 42 passes through the adjusting rod 44 and is located inside the mounting hole, and the end of the adjusting shaft 42 is threadedly connected with a fixing piece 422 for abutting against the adjusting rod 44. An oblong through hole for mounting the adjusting shaft 42 is provided on the side wall of the receiving hopper 21. The end of the adjusting shaft 42 is located inside the oblong through hole. The adjusting shaft 42 can be fixed to the adjusting rod 44 by the fixing piece 422. And the position of the adjusting shaft 42 on the receiving hopper 21 along the length direction of the adjusting shaft 42 can be adjusted by the setting of the fixing piece 422. It is convenient to adjust the position of the scraper 4. At the same time, it is convenient to install and disassemble the adjusting shaft 42.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A polyurethane foam crushing and recovery device, characterized in that: include: A conveyor belt (1), wherein a feed bin (11) is installed at the feed end of the conveyor belt (1); A pulverizer (2) is installed at the discharge end of the conveyor belt (1), and a receiving hopper (21) is installed at the feed inlet of the pulverizer (2), and the receiving hopper (21) is located below the discharge end of the conveyor belt (1); An airflow screening machine (3), connected to the discharge end of the pulverizer (2) through a pipeline, and used for screening polyurethane foam particles; A scraper (4) is installed inside the receiving hopper (21), and a brush (41) is installed on one side of the scraper (4) for abutting against the lower side of the conveyor belt (1) to clean the polyurethane foam particles on the lower side of the conveyor belt (1) into the receiving hopper (21).

2. The polyurethane foam crushing and recovery device according to claim 1, characterized in that: An adjusting shaft (42) is also installed inside the receiving hopper (21), a sleeve (43) is rotatably installed on the outer side of the adjusting shaft (42), the scraper (4) is fixedly installed on the outer side of the sleeve (43), and a driving component (5) for driving the brush (41) to abut against the conveyor belt (1) is also provided between the scraper (4) and the receiving hopper (21).

3. The polyurethane foam crushing and recovery device according to claim 2, characterized in that: The driving assembly (5) comprises: A fixing rod (51), one end of which is fixedly mounted on the bottom of the scraper (4) and is arranged at an angle with the scraper (4); A sliding sleeve (52) is slidably disposed on the fixing rod (51) along the length direction of the fixing rod (51), and one end of the sliding sleeve (52) is slidably disposed on the receiving hopper (21); An elastic member (53) is arranged between the fixing rod (51) and the sliding sleeve (52) and is used to push the sliding sleeve (52) to move in a direction away from the scraper (4).

4. The polyurethane foam crushing and recovery device according to claim 3, characterized in that: A roller (54) is rotatably provided at the end of the sliding sleeve (52) for abutting against the receiving hopper (21).

5. The polyurethane foam crushing and recovery device according to claim 2, characterized in that: The adjusting shaft (42) is threadedly connected with two limiting members (421), which are respectively located at two ends of the sleeve (43) and are used to limit the movement of the sleeve (43) on the adjusting shaft (42) along the length direction of the adjusting shaft (42).

6. The polyurethane foam crushing and recovery device according to claim 2, characterized in that: Adjustment rods (44) are installed on two opposite outer side walls of the receiving hopper (21), and a mounting hole for mounting the adjustment shaft (42) is provided in the middle of the adjustment rods (44). The position of the adjustment rods (44) on the receiving hopper (21) has the freedom to be adjusted in a direction close to or away from the conveyor belt (1).

7. The polyurethane foam crushing and recovery device according to claim 6, characterized in that: Two baffles (45) are installed on the outer wall of the receiving hopper (21), and the two baffles (45) are arranged in parallel and spaced apart along the length direction of the adjusting rod (44), and the adjusting rod (44) is threadedly connected with two positioning members (441) respectively used to abut against the outer sides of the two baffles (45).

8. The polyurethane foam crushing and recovery device according to claim 6, characterized in that: The end of the adjusting shaft (42) passes through the adjusting rod (44) and is located inside the mounting hole, and the end of the adjusting shaft (42) is threadedly connected with a fixing member (422) for abutting against the adjusting rod (44).

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