A waste floor leather crushing device

Abstract

This application provides a waste floor covering crushing device, relating to the field of waste floor covering recycling devices. It includes a frame, with a crushing frame fixedly mounted on the top of the frame, and a guide frame. A downward-facing V-shaped guide plate is provided in the center of the guide frame's inner cavity. Two sets of blade holders are symmetrically installed on both sides of the guide frame's inner cavity. A pair of parallel guide plates are provided on the inner walls of both sides of the guide frame. The blade holders are slidably positioned between the corresponding two guide plates. A set of first cutting blades is linearly and equidistantly installed on the side of the blade holder facing the V-shaped guide plate. This application uses a drive assembly to control the two blade holders to synchronously move closer to or away from the V-shaped guide plate, achieving re-crushing of floor covering fragments falling between the V-shaped guide plate and the blade holders. This improves the crushing precision and quality of waste floor coverings, and is beneficial for improving the recycling efficiency of waste floor coverings.

Description

Technical Field

[0001] This invention relates to the field of waste floor covering recycling equipment, and more specifically, to a waste floor covering crushing device. Background Technology

[0002] Waste floor coverings, a common type of building decoration waste, are mainly composed of polyvinyl chloride (PVC) and various fiber reinforcing materials. They possess characteristics such as high toughness, tear resistance, and wear resistance. With the increasing volume of building renovations and demolitions year by year, the demand for waste floor covering processing is becoming increasingly urgent. Currently, physical recycling is the main way to utilize waste floor coverings as a resource. Among these methods, crushing is a key step in the recycling pretreatment process, and its crushing effect directly affects the efficiency and quality of subsequent processes such as sorting, cleaning, and granulation.

[0003] Currently, the crushing and processing of waste floor coverings mainly relies on twin-shaft shredders. These shredders use two sets of counter-rotating cutter shafts, with staggered blades creating a shearing gap to apply multiple forces—shearing, tearing, and compressing—to the material, thus crushing the waste floor coverings. This equipment features high torque and strong processing capacity and is widely used in the pre-treatment of waste floor coverings for recycling. However, existing waste floor covering crushing equipment generally employs a single-stage crushing process, meaning that the waste floor coverings are crushed once by a pair of cutter shafts. In practical applications, this single-stage crushing has low precision, uneven output particle size, and the crushed material often contains a large amount of insufficiently crushed long strips and lumps. The output particle size distribution is wide and lacks uniformity, hindering the recycling efficiency of waste floor coverings.

[0004] Therefore, we have made improvements to this and proposed a waste floor covering shredder. Summary of the Invention

[0005] The purpose of this invention is to address the problems of low crushing precision, uneven output particle size, and the presence of a large amount of insufficiently crushed long strips and lumps in the crushed material, resulting in a wide range of output particle size distribution and poor uniformity, which restricts the recycling efficiency of waste flooring.

[0006] To achieve the above-mentioned objectives, the present invention provides a waste floor covering shredder to improve the aforementioned problems.

[0007] The application is as follows:

[0008] A waste floor covering shredder includes a frame, a crushing frame fixedly mounted on the top of the frame, a pair of cutter shafts rotatably mounted inside the crushing frame, and crushing blades arranged in a staggered pattern on both cutter shafts. The device also includes:

[0009] The guide frame is vertically fixed at the bottom of the crushing frame. The upper and lower ends of the guide frame are open. A V-shaped guide plate with the opening facing downward is provided in the middle of the inner cavity of the guide frame.

[0010] Two sets of blade holders are symmetrically installed on both sides of the inner cavity of the guide frame. The blade holders are located outside the V-shaped guide plate. A pair of parallel guide plates are provided on the inner walls of both sides of the guide frame. The blade holders are slidably disposed between the corresponding two guide plates. A set of first cutting blades are linearly and equidistantly installed on the side of the blade holder facing the V-shaped guide plate. A drive assembly is installed inside the guide frame to control the two blade holders to move synchronously closer to or away from the side of the V-shaped guide plate.

[0011] As a preferred technical solution of this application, the guide frame is a rectangular frame, and the inner walls on both sides of the guide frame have upwardly extending connecting plates. The connecting plates are connected and fixed to the inner wall of the crushing frame by a set of fasteners.

[0012] As a preferred technical solution of this application, the outer edge of the guide plate located at the top of the guide frame has an upward bend, and the bend has a protrusion extending between two adjacent crushing tools on the corresponding cutter shaft.

[0013] As a preferred technical solution of this application, the tool holder is a U-shaped plate holder, and the two parallel sides of the tool holder are slidably connected to the inner walls of the two corresponding guide plates, and a reinforcing plate is fixed between the two parallel sides.

[0014] As a preferred technical solution of this application, the driving assembly includes a driving component installed inside the guide frame and located inside the V-shaped guide plate. The bottom of the guide frame has a support plate for supporting the driving component. The output end of the driving component is fixed with a transmission frame. The transmission frame is driven by the driving component to make vertical linear motion. A first rotating shaft passing through the middle position of the transmission frame is installed in the middle of the guide frame. A first gear is fixed in the middle of the first rotating shaft. The inner side of the transmission frame has a first gear row that meshes with the first gear. The two ends of the first rotating shaft are respectively connected to the corresponding tool holder through the transmission assembly.

[0015] As a preferred technical solution of this application, the transmission assembly includes second gears respectively installed at both ends of the first rotating shaft, and second tooth rows that mesh with the second gears are linearly slidably arranged on the outer walls of both sides of the guide frame. A first connecting shaft that passes through the reinforcing plate and extends out of the guide frame is fixed on the tool holder. The outer end of the first connecting shaft is fixed to the end of the second tooth row. A linear slot is opened on the side wall of the guide frame for the first connecting shaft to make linear movements.

[0016] As a preferred technical solution of this application, the V-shaped guide plate includes a pair of side plates, one of which has a first hinge seat on both sides of its top end, and the other side plate has a second hinge seat in the middle of its top end. A second connecting shaft passing through the first hinge seat and the second hinge seat is installed on the bottom side of the middle part of the crushing frame.

[0017] As a preferred technical solution of this application, the inner sides of both side plates are provided with a third hinge seat, the top of the transmission frame is provided with a fourth hinge seat, and the two ends of the fourth hinge seat are respectively hinged to the corresponding third hinge seat with connecting seats.

[0018] As a preferred technical solution of this application, the outer sides of the two side plates are respectively provided with second cutting blades at linear equidistant intervals, and the first cutting blades and the second cutting blades are arranged alternately.

[0019] As a preferred technical solution of this application, the two second gear rows are located at the upper and lower ends of the second gear and are in a parallel state.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0021] In the scheme of this application:

[0022] 1. By setting a guide frame at the bottom of the crushing frame, and a V-shaped guide plate inside the guide frame, and knife holders that move closer or further away from the V-shaped guide plate on both sides, a set of first cutting blades are installed on the knife holders. By controlling the two knife holders to move closer or further away from the V-shaped guide plate synchronously through the drive component, the flooring scraps falling between the V-shaped guide plate and the knife holders are re-cut, which improves the crushing precision and quality of waste flooring and is conducive to improving the recycling efficiency of waste flooring.

[0023] 2. By setting the V-shaped guide plate as two expandable and closable side plates, when the floor linoleum scraps after the first crushing are crushed again, the two side plates can move relatively far apart, that is, rotate synchronously in opposite directions. This slows down the falling speed of the floor linoleum scraps as they pass through the side plates, making it easier for the first cutting blade to cut them. After cutting this part of the floor linoleum scraps, the two side plates can move relatively close together, increasing the distance between the side plates and the blade holder, and reducing the tilt angle of the side plates (the included angle between the two side plates). This allows the floor linoleum scraps after the second crushing to fall and be discharged quickly outside the guide frame, improving the efficiency of material flow and collection. Attached Figure Description

[0024] Figure 1 A three-dimensional structural diagram of the left end of the waste floor covering shredder provided in this application;

[0025] Figure 2A three-dimensional structural diagram of the right end of the waste floor covering shredder provided in this application;

[0026] Figure 3 A side sectional view of the waste floor covering shredder provided in this application;

[0027] Figure 4 A schematic diagram of the material guide frame at one end of the waste floor covering crushing device provided in this application;

[0028] Figure 5 A schematic diagram of the other end of the feed frame of the waste floor covering crushing device provided in this application;

[0029] Figure 6 A schematic diagram of the internal structure of the feed frame of the waste floor covering crushing device provided in this application;

[0030] Figure 7 A schematic diagram of the two blade holders of the waste floor covering shredder provided in this application;

[0031] Figure 8 A schematic diagram of the V-shaped guide plate separation structure of the waste floor covering crushing device provided in this application;

[0032] Figure 9 A partial structural schematic diagram of the drive mechanism of the waste floor covering shredder provided in this application.

[0033] The image shows:

[0034] 100. Frame; 101. Crushing frame; 102. Cutter shaft; 103. Crushing cutter;

[0035] 200. Material guide frame; 201. V-shaped material guide plate; 2011. Side plate; 2012. First hinge seat; 2013. Second hinge seat; 2014. Second connecting shaft; 2015. Third hinge seat; 2016. Second cutting blade; 202. Guide plate; 2021. Bending part; 2022. Protrusion; 203. Connecting plate; 204. Support plate;

[0036] 300. Tool holder; 301. First cutting blade; 302. Reinforcing plate;

[0037] 400. Drive assembly; 401. Drive component; 402. Transmission frame; 403. First rotating shaft; 404. First gear; 405. First gear row; 406. Second gear; 407. Second gear row; 408. First connecting shaft; 409. Linear slot; 410. Fourth hinge seat; 411. Connecting seat. Detailed Implementation

[0038] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention 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 invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0039] The present invention will be further described below with reference to embodiments.

[0040] Example: Refer to Figures 1 to 9 As shown, a waste floor covering crushing device is mainly used to solve the problems of low crushing precision, uneven output particle size, and large amount of uncrushed long strips and blocks in the crushed material, resulting in a wide range of output particle size distribution and poor uniformity, which restricts the recycling efficiency of waste floor covering.

[0041] Specifically, the crushing device includes a frame 100, a crushing frame 101 fixedly installed on the top of the frame 100, and a pair of cutter shafts 102 rotatably installed inside the crushing frame 101. Both cutter shafts 102 are provided with crushing blades 103 arranged in an alternating pattern. The two cutter shafts 102 are driven by an external drive mechanism (not shown in the figure) to rotate synchronously in opposite directions. During the rotation of the cutter shafts 102, the alternating blades on the cutter shafts 102 form a shearing gap, applying multiple forces such as shearing, tearing and squeezing to the waste floor covering, thereby achieving preliminary coarse crushing.

[0042] Furthermore, it also includes a guide frame 200, which is a rectangular frame with open ends. The guide frame 200 is vertically fixed to the bottom of the crushing frame 101. Preferably, for ease of installation, the inner walls on both sides of the guide frame 200 have upwardly extending connecting plates 203. The connecting plates 203 are connected and fixed to the inner wall of the crushing frame 101 by a set of fasteners.

[0043] After initial coarse crushing, the floor linoleum flows into the guide frame 200. A V-shaped guide plate 201 with its opening facing downward is provided in the middle of the inner cavity of the guide frame 200. Preferably, the tip of the V-shaped guide plate 201 is located directly below the two cutter shafts 102. The V-shaped guide plate 201 is used to divert the floor linoleum debris after initial coarse crushing to both sides. The two sides of the V-shaped guide plate 201 are inclined, so that the floor linoleum debris flows along the inclined surface of the V-shaped guide plate 201, reducing the probability of it flowing too fast due to free fall, which is beneficial for further crushing of the floor linoleum debris.

[0044] Furthermore, it also includes a blade holder 300, which has two sets of blade holders symmetrically installed on both sides of the inner cavity of the guide frame 200. These blade holders are used to further crush the floor covering debris after it has been diverted by the V-shaped guide plate 201. The blade holders 300 are located outside the V-shaped guide plate 201. A pair of parallel guide plates 202 are provided on the inner walls of both sides of the guide frame 200. The blade holders 300 are slidably disposed between the corresponding two guide plates 202. Preferably, the guide plates 202... The blade holder 300 is perpendicular to the side of the V-shaped guide plate 201. The inner end of the blade holder 300 slides along the two guide plates 202, so that the outer side of the blade holder 300 can move closer to or away from the side of the V-shaped guide plate 201. A set of first cutting blades 301 are linearly and equidistantly installed on the side of the blade holder 300 facing the V-shaped guide plate 201. A drive assembly 400 is installed in the guide frame 200 to control the two blade holders 300 to move synchronously closer to or away from the side of the V-shaped guide plate 201.

[0045] It is understandable that most of the waste flooring sheared by the crushing blades 103 on the two cutter shafts 102 falls in long strips. Therefore, the first cutting blade 301 is set in the horizontal direction with the blade perpendicular to the side of the V-shaped guide plate 201, which can press and cut the strip-shaped flooring scraps flowing through the side of the V-shaped guide plate 201.

[0046] Furthermore, the guide plate 202 located at the top of the guide frame 200 has an upward bending portion 2021 on its outer edge. The bending portion 2021 has a protrusion 2022 that extends into the space between two adjacent crushing blades 103 on the corresponding cutter shaft 102. After being crushed by the two cutter shafts 102, the floor linoleum debris falls from between the two cutter shafts 102 to both sides of the V-shaped guide plate 201. The bending portion 2021 can block the falling floor linoleum debris, effectively preventing the floor linoleum debris from falling onto the upper surface of the guide plate 202 and accumulating, so that the floor linoleum debris falls in a concentrated manner between the V-shaped guide plate 201 and the blade holder 300.

[0047] Furthermore, the tool holder 300 is a U-shaped plate holder. The two parallel sides of the tool holder 300 are slidably connected to the inner walls of the corresponding two guide plates 202, and a reinforcing plate 302 is fixed between the two parallel sides. During the sliding process between the two guide plates 202 of the tool holder 300, the outer end of the top guide plate 202 can push the floor linoleum debris that falls onto the upper surface of the tool holder 300 and remains there onto the V-shaped guide plate 201.

[0048] Further, the driving component 400 includes a driving member 401 installed inside the material guiding frame 200 and located inside the V-shaped material guiding plate 201. The bottom of the material guiding frame 200 has a support plate 204 for supporting the driving member 401. Preferably, the bottoms of the two side plates 2011 of the V-shaped material guiding plate 201 extend below the support plate 204 to prevent the broken floor leather debris from falling on the support plate 204 and staying. A transmission frame 402 is fixed to the output end of the driving member 401. The transmission frame 402 is in the shape of a "mouth". The transmission frame 402 is driven by the driving member 401 to perform a vertical linear motion. A first rotating shaft 403 passing through the middle position of the transmission frame 402 is installed in the middle of the material guiding frame 200. A first gear 404 is fixed to the middle of the first rotating shaft 403. The inner side of the transmission frame 402 has a first tooth row 405 meshing with the first gear 404. Both ends of the first rotating shaft 403 are respectively connected to the corresponding tool holder 300 through transmission components;

[0049] Preferably, the transmission components include second gears 406 respectively installed at both ends of the first rotating shaft 403. Second tooth rows 407 meshing with the second gears 406 are respectively arranged in a linear sliding manner on the outer walls of both sides of the material guiding frame 200. A first connecting shaft 408 fixed to the tool holder 300 passes through the reinforcing plate 302 and extends out of the material guiding frame 200. The outer end of the first connecting shaft 408 is fixed to the end of the second tooth row 407. A linear notch 409 for the first connecting shaft 408 to perform a linear motion is formed on the side wall of the material guiding frame 200.

[0050] Refer to Figure 3 and Figure 4 As shown in

[0051] Furthermore, the V-shaped guide plate 201 includes a pair of side plates 2011. One side plate 2011 has first hinge seats 2012 on both sides of its top end, and the other side plate 2011 has a second hinge seat 2013 in the middle of its top end. A second connecting shaft 2014 is installed on the bottom side of the middle part of the crushing frame 101, passing through the first hinge seats 2012 and the second hinge seats 2013. That is, the two side plates 2011 can rotate along the axis of the second connecting shaft 2014. The purpose of this design is to allow the two side plates 2011 to be relatively far away from the conveyor belt when the floor veneer scraps after one crushing are crushed again. The movement, namely synchronous reverse rotation, slows down the falling speed of the floor linoleum scraps after crushing as they pass through the side plate 2011, facilitating the pressing and cutting by the first cutting blade 301. Correspondingly, after pressing and cutting this part of the floor linoleum scraps, the two side plates 2011 can move relatively closer together. At this time, the distance between the side plate 2011 and the blade holder 300 increases, and the tilt angle of the side plate 2011 also decreases (the included angle between the two side plates 2011), so that the floor linoleum scraps after being crushed again can quickly fall and be discharged outside the guide frame 200, improving the efficiency of scrap flow and collection.

[0052] Furthermore, each of the two side plates 2011 has a third hinge seat 2015 on its inner side, and the top of the transmission frame 402 has a fourth hinge seat 410. The two ends of the fourth hinge seat 410 are respectively hinged to the corresponding third hinge seat 2015 with connecting seats 411. The two side plates 2011 are connected to the transmission frame 402 through the connecting seats 411. That is, when the driving member 401 drives the two cutter holders 300 to crush the floor linoleum scraps after one crushing, it can synchronously drive the two side plates 2011 to rotate along the axis of the first connecting shaft 408. The opening angle of the two side plates 2011 can be adjusted during the cutting process without an additional power source, so that the material sliding speed is matched with the cutting frequency.

[0053] Furthermore, the outer sides of the two side plates 2011 are respectively provided with second cutting blades 2016 at linear equidistant intervals. The first cutting blade 301 and the second cutting blade 2016 are arranged alternately. As the side plate 2011 and the blade holder 300 on one side move closer to each other, by adding a set of second cutting blades 2016 on the side plate 2011, the two sets of cutting blades are staggered to cut the floor linoleum debris flowing through, further improving the crushing accuracy of the floor linoleum.

[0054] The two second tooth rows 407 are located at the upper and lower ends of the second gear 406 and are in a parallel state. That is, the two cutter holders 300 synchronously perform pressing and cutting actions under the drive of the corresponding second tooth rows 407. Preferably, when the two second tooth rows 407 are in an interlaced state, the first gear 404 rotates, so that the two cutter holders 300 can alternately press and cut the floor leather scraps and waste.

[0055] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0056] Obviously, the embodiments described above are merely some embodiments of the present invention, not all embodiments. The accompanying drawings show preferred embodiments of the present invention, but do not limit the patent scope of the present invention. The present invention can be implemented in many different forms; rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this invention.

Claims

1. A waste floor covering crushing device, comprising a frame (100), wherein a crushing frame (101) is fixedly installed on the top of the frame (100), and a pair of cutter shafts (102) are rotatably installed inside the crushing frame (101), and each of the two cutter shafts (102) is provided with crushing blades (103) arranged in a staggered manner, characterized in that, Also includes: The guide frame (200) is vertically fixed at the bottom of the crushing frame (101). The upper and lower ends of the guide frame (200) are open. A V-shaped guide plate (201) with the opening facing downward is provided in the middle of the inner cavity of the guide frame (200). Two sets of blade holders (300) are symmetrically installed on both sides of the inner cavity of the guide frame (200). The blade holders (300) are located outside the V-shaped guide plate (201). A pair of parallel guide plates (202) are provided on the inner walls of both sides of the guide frame (200). The blade holders (300) are slidably disposed between the corresponding two guide plates (202). A set of first cutting blades (301) are linearly and equidistantly installed on the side of the blade holders (300) facing the V-shaped guide plate (201). A drive assembly (400) is installed inside the guide frame (200) to control the two blade holders (300) to move synchronously closer to or away from the side of the V-shaped guide plate (201).

2. The waste floor covering crushing device according to claim 1, characterized in that, The guide frame (200) is a rectangular frame, and the inner walls on both sides of the guide frame (200) have upwardly extending connecting plates (203). The connecting plates (203) are connected and fixed to the inner wall of the crushing frame (101) by a set of fasteners.

3. The waste floor covering crushing device according to claim 2, characterized in that, The guide plate (202) located at the top of the guide frame (200) has an upward bend (2021) on its outer edge, and the bend (2021) has a protrusion (2022) that extends into the space between two adjacent crushing cutters (103) on the corresponding cutter shaft (102).

4. The waste floor covering crushing device according to claim 3, characterized in that, The tool holder (300) is a U-shaped plate holder. The two parallel sides of the tool holder (300) are slidably connected to the inner walls of the corresponding two guide plates (202), and a reinforcing plate (302) is fixed between the two parallel sides.

5. The waste floor covering crushing device according to claim 4, characterized in that, The drive assembly (400) includes a drive member (401) installed inside the guide frame (200) and located inside the V-shaped guide plate (201). The bottom of the guide frame (200) has a support plate (204) supporting the drive member (401). A transmission frame (402) is fixed at the output end of the drive member (401). The transmission frame (402) is driven by the drive member (401) to make vertical linear motion. A first rotating shaft (403) passing through the middle position of the transmission frame (402) is installed in the middle of the guide frame (200). A first gear (404) is fixed in the middle of the first rotating shaft (403). The inner side of the transmission frame (402) has a first gear row (405) that meshes with the first gear (404). The two ends of the first rotating shaft (403) are respectively connected to the corresponding tool holder (300) through the transmission assembly.

6. The waste floor covering crushing device according to claim 5, characterized in that, The transmission assembly includes a second gear (406) respectively installed at both ends of the first rotating shaft (403). The outer walls of both sides of the guide frame (200) are linearly slidably provided with a second gear row (407) that meshes with the second gear (406). A first connecting shaft (408) that passes through the reinforcing plate (302) and extends out of the guide frame (200) is fixed on the tool holder (300). The outer end of the first connecting shaft (408) is fixed to the end of the second gear row (407). The side wall of the guide frame (200) is provided with a linear slot (409) for the first connecting shaft (408) to make linear movements.

7. The waste floor covering crushing device according to claim 6, characterized in that, The V-shaped guide plate (201) includes a pair of side plates (2011), one of which has a first hinge seat (2012) on both sides of the top end, and the other side plate (2011) has a second hinge seat (2013) in the middle of the top end. A second connecting shaft (2014) is installed on the bottom side of the middle part of the crushing frame (101) and passes through the first hinge seat (2012) and the second hinge seat (2013).

8. The waste floor covering crushing device according to claim 7, characterized in that, The inner sides of both side plates (2011) have a third hinge seat (2015), and the top of the transmission frame (402) has a fourth hinge seat (410). The two ends of the fourth hinge seat (410) are respectively hinged to the corresponding third hinge seat (2015) with connecting seats (411).

9. A waste floor covering shredder according to claim 8, characterized in that, The outer sides of the two side plates (2011) are respectively provided with second cutting blades (2016) arranged linearly and equidistantly, and the first cutting blade (301) and the second cutting blade (2016) are arranged alternately.

10. A waste floor covering shredder according to claim 9, characterized in that, The two second gear rows (407) are located at the upper and lower ends of the second gear (406) respectively and are in a parallel state.

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