Wire harness recovery device for automobile wire harness processing

Abstract

This utility model relates to the field of automotive wiring harness processing technology, specifically to a wiring harness recycling device for automotive wiring harness processing. It includes a separation chamber with a protective cover bolted to its top, and a feed hopper mounted on top of the protective cover. A rotating shaft is located inside the separation chamber, one end of which passes through the chamber body and connects to a first motor. Rotating discs are spaced apart on the rotating shaft, and arc-shaped blades are hinged to the edges of the rotating discs via pins. A fixed cutter is fixed to the inner wall of the separation chamber. During operation, the first motor drives the rotating discs to rotate, and centrifugal force causes the arc-shaped blades to swing outwards, dynamically engaging with the fixed cutter to cut the wiring harness. The chopped material falls into a lower decomposition chamber, where two decomposition rollers are symmetrically installed. The roller surfaces are fixed with interlocking decomposition teeth. A second motor drives the two rollers to rotate in opposite directions, meshing and compressing the material. Finally, the fragments slide out through a discharge trough at the top of the base. This device utilizes centrifugal force to achieve adaptive cutting, improving separation efficiency, and enhances the sheath crushing effect through double-roller meshing, improving the purity of the recycled material.

Description

Technical Field

[0001] This utility model relates to the field of automotive wiring harness processing technology, and in particular to a wiring harness recycling device for automotive wiring harness processing. Background Technology

[0002] In the field of automotive wiring harness recycling, traditional processing methods often focus on the initial cutting or crushing of waste wiring harnesses. The core of these methods is typically to reduce the size of the entire bundle of wiring harnesses using fixed cutting tools or simple shredding mechanisms. However, this technology has a significant problem: the outer plastic insulation sheath and the inner metal conductor core of the wire harness segments are often not effectively and completely physically separated after cutting or crushing. The sheath may only be cut or torn, but still tightly wrapped around or stuck to the conductor core, or the conductor core may be exposed, but the sheath fragments are too large and mixed. This incomplete separation severely hinders the subsequent efficient and pure sorting and recycling of high-value materials such as metals and plastics, reducing the purity and economic value of the recycled products.

[0003] To address the issue of incomplete wire harness separation, a more advanced existing technology proposes adding a dedicated extrusion and decomposition stage after the initial cutting. Specifically, after initial cutting, the wire harness is fed into a chamber equipped with rotating rollers. These two rollers typically have a toothed structure and rotate in opposite directions. As the cut wire harness segments enter between these two rotating rollers, the teeth on the rollers mesh, applying continuous extrusion, kneading, and tearing forces to the material. This mechanical action aims to further crush and peel off larger pieces of plastic sheathing that remain adhered to or wrapped around the wire core after initial cutting, breaking them into smaller particles. This promotes the separation of the metal wire core from the plastic insulation layer, with the aim of improving the purity of the final recycled material.

[0004] However, while this existing technology combining slitting and extrusion improves the final material decomposition and separation, the initial slitting stage itself introduces new technical obstacles. This new obstacle primarily stems from the fact that the slitting mechanism typically employs a fixed, one-piece cutting blade. During operation, the movement trajectory of this fixed blade is fixed and rigid, unable to be dynamically adjusted according to the thickness, hardness, or winding state of the wire harness. When the wire harness enters the slitting area, especially when encountering thick, hard wire harnesses or clumps of wire, this fixed-trajectory cutting method is prone to jamming, leading to decreased cutting efficiency or even equipment overload and shutdown. More importantly, because the cutter is rigidly mounted, the entire slitting process cannot utilize the centrifugal force naturally generated by the high-speed rotating components. Centrifugal force, as a powerful dynamic force, has a significant enhancing effect during high-speed operation; unfortunately, this is wasted in this fixed slitting stage. This not only limits the efficiency of the slitting process itself and its adaptability to wire harnesses with different characteristics, but also fails to create more ideal material conditions (such as more uniform size and more thorough pre-separation) for the subsequent extrusion and decomposition process, thus limiting the potential for improving the overall recycling efficiency. Therefore, there is an urgent need for a solution that can break through the limitations of the fixed cutting mode and actively utilize the kinetic effects generated by high-speed rotation to optimize the efficiency and effectiveness of the slitting process. Utility Model Content

[0005] The purpose of this utility model is to provide a wire harness recycling device for automotive wire harness processing, which solves the technical problems in the prior art caused by the use of a fixed-installation integrated cutting tool, which results in a fixed cutting trajectory, inability to adapt to different wire harness characteristics, easy jamming, and inability to utilize the centrifugal force generated by high-speed rotation to enhance the cutting effect, thereby limiting the efficiency and adaptability of the slitting process and affecting the material conditions of the subsequent decomposition process.

[0006] To achieve the above objectives, this utility model provides a wire harness recycling device for automotive wire harness processing, including a separation chamber. A protective cover is bolted to the top of the separation chamber, and a feed hopper is bolted to the top of the protective cover. A rotating shaft is mounted inside the separation chamber via bearings. One end of the rotating shaft extends through the connection between the separation chamber and one side of the protective cover and is connected to a first motor. The first motor is bolted to the outside of the separation chamber and the protective cover. A plurality of rotating disks are spaced apart on the outside of the rotating shaft. A plurality of arc-shaped blades are spaced apart on the edges of the rotating disks via pins. A plurality of fixed cutters are fixedly mounted on the inner wall of the separation chamber and engage with the arc-shaped blades.

[0007] The separation chamber has first reinforcing ribs installed at intervals on both sides of its outer width direction, and first diagonal bracing plates installed at intervals on both sides of its outer length direction.

[0008] The bottom of the separation chamber is bolted to a decomposition chamber, and several second reinforcing ribs are installed at intervals on the outside of the decomposition chamber. Inside the decomposition chamber, two decomposition rollers are symmetrically installed via bearings.

[0009] Several decomposition teeth are fixedly installed on the outer side of each of the decomposition rollers, and the decomposition teeth on the outer side of the two decomposition rollers mesh with each other.

[0010] One end of each of the decomposition rollers extends and penetrates to the outside of the decomposition chamber, and is connected to the output end of the second motor via a shaft. The second motor is installed on the outside of the decomposition chamber by bolts.

[0011] The bottom of the decomposition chamber is bolted to a base, and the top of the base has a discharge trough that communicates with the decomposition chamber. The discharge trough is inclined downward and extends to one side of the width of the base.

[0012] The base has a fixed plate fixedly installed at its bottom end, and a number of second diagonal bracing plates are installed at intervals along the length of the base and the fixed plate, at the angle between the two.

[0013] This invention relates to a wire harness recycling device for automotive wire harness processing. After the wire harness enters the separation chamber through a feeding hopper, a first motor drives a rotating shaft to rotate at high speed, causing multiple rotating disks mounted on the shaft to rotate synchronously. Arc-shaped blades, hinged at the edges of the rotating disks by pins, are thrown outwards under centrifugal force, forming a variable rotational cutting trajectory. Simultaneously, a fixed cutter, positioned on the inner wall of the separation chamber, is positioned corresponding to the movement path of the arc-shaped blades, allowing the thrown arc-shaped blades to naturally form an interlocking meshing state with the fixed cutter during high-speed rotation. When the wire harness passes through the meshing area between the rotating arc-shaped blades and the fixed cutter, a dynamic shearing action is achieved.

[0014] The key feature of this cutting structure is its ability to overcome the rigid constraints of traditional fixed cutting tools. The arc-shaped blade, connected by a pin, possesses adaptive adjustment capabilities under centrifugal force. When contacting wire harnesses of varying thicknesses or with different winding patterns, the blade angle and cutting depth can be naturally adjusted, reducing the risk of jamming. Simultaneously, the centrifugal force generated by the high-speed rotation of the rotating system is effectively converted into the driving force for the arc-shaped blade to engage, improving the energy utilization efficiency of the cutting action and enhancing the continuity of sheath cutting. This structure helps to overcome the efficiency bottleneck caused by the static cutting trajectory limitations of fixed cutting tools, providing a different approach to solving the problems of insufficient cutting and poor pretreatment effects for specific wire harnesses. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0016] Figure 1 This is a schematic diagram of the left-side structure of an embodiment of this utility model.

[0017] Figure 2 This is a schematic diagram of the right side of an embodiment of the present invention.

[0018] Figure 3 This is a schematic diagram of the structure of the base of an embodiment of this utility model.

[0019] Figure 4 This is a plan view of the separation chamber and the decomposition chamber of this utility model embodiment.

[0020] In the diagram: 101, Separation chamber; 102, Protective cover; 103, Feed hopper; 104, Rotating shaft; 105, First motor; 106, Rotating disc; 107, Arc-shaped blade; 108, Fixed cutter; 109, First reinforcing rib; 110, First inclined support plate; 111, Decomposition chamber; 112, Second reinforcing rib; 113, Decomposition roller; 114, Decomposition teeth; 115, Second motor; 116, Base; 117, Discharge trough; 118, Fixed plate; 119, Second inclined support plate. Detailed Implementation

[0021] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0022] Please see Figures 1-4 .

[0023] This utility model provides a wire harness recycling device for automotive wire harness processing, including a separation chamber 101 as the main outer shell. A protective cover 102 is bolted to the top opening of the separation chamber 101. The protective cover 102 mainly provides safety protection to prevent wire harness fragments or flying debris generated during cutting from splashing out of the device. At the top of the protective cover 102, a feeding hopper 103 is also bolted to the top. The feeding hopper 103 is used to guide and receive automotive wire harness waste to be processed into the separation chamber 101. Its structure can ensure that the material enters in an orderly manner and effectively prevent the inlet from being blocked. Inside the separation chamber 101, a rotating shaft 104 is mounted with bearing support. This rotating shaft 104 is the core power transmission component for the rotary cutting function. One end of the rotating shaft 104 extends sequentially through the side wall of the separation chamber 101 and the side wall of the protective cover 102, and finally connects to the output shaft of the first motor 105. The first motor 105 is firmly mounted on the outer side wall of the separation chamber 101 and the protective cover 102 with bolts, providing rotational power for the entire cutting system. On the outside of the rotating shaft 104, multiple circular rotating disks 106 are fixedly mounted at intervals along the axial direction. At the circumferential edge of each rotating disk 106, multiple movable arc-shaped blades 107 are respectively mounted at intervals by hinge pins. Around the circumference of the inner wall of the separation chamber 101, multiple immovable fixed cutters 108 are fixedly mounted. In the working state, the rotating arc-shaped blades 107 are thrown outward due to centrifugal force, interacting with the fixed cutters 108 and forming a continuous meshing cutting action. This centrifugal meshing cutting design is more efficient and thorough than static cutting.

[0024] On the external structure of the separation chamber 101, multiple first reinforcing ribs 109 are welded at intervals on both outer walls along its width direction to enhance the structural strength and rigidity of the separation chamber 101 in this direction; on both outer walls along the length direction of the separation chamber 101, multiple first diagonal bracing plates 110 are also welded at intervals to further enhance the overall structural stability of the separation chamber 101.

[0025] At the bottom outlet of the separation chamber 101, a decomposition chamber 111 is bolted on to receive the cut wire harness segments and perform secondary decomposition. The outer wall of the decomposition chamber 111 also needs to be reinforced, so multiple second reinforcing ribs 112 are welded at intervals on its exterior to enhance its resistance to deformation. Inside the cavity of the decomposition chamber 111, two parallel decomposition rollers 113 are symmetrically mounted via bearings. These two decomposition rollers 113 are the main actuators for realizing the crushing and extrusion function. On the outer circumferential surface of each decomposition roller 113, multiple protruding decomposition teeth 114 are firmly fixedly installed. The two decomposition rollers 113 are parallel and opposite to each other, and the decomposition teeth 114 are aligned and meshed during installation. The same end of the two decomposition rollers 113 extends and penetrates the side wall of the decomposition chamber 111. On the outside of the decomposition chamber 111, the protruding shaft end of each decomposition roller 113 is connected to the output shaft of a second motor 115. The two second motors 115 are independent of each other and are respectively installed on the outer side wall of the decomposition chamber 111 by bolts, driving the two decomposition rollers 113 to rotate in opposite directions to realize the meshing and squeezing action of the decomposition teeth 114.

[0026] At the bottom of the decomposition chamber 111, a base 116 for collecting and discharging final waste is bolted on. A long, narrow discharge trough 117 is formed at the top of the base 116, directly connected to the bottom of the decomposition chamber 111 to receive the decomposed waste. Specifically, the discharge trough 117 is designed as a ramp extending sloping towards one side of the width of the base 116, utilizing the material's own weight to achieve automatic, unpowered discharge, simplifying the discharge structure design. At the bottom of the base 116, a horizontally arranged fixing plate 118 is welded and fixed, providing a stable support base for the entire device. To strengthen the connection between the base 116 and the fixing plate 118, particularly along the length of the device, multiple second diagonal bracing plates 119 are welded and fixed at intervals at the longitudinal angle where they intersect.

[0027] Working Principle: Wire harness waste is first fed into the device through the feed hopper 103, which ensures that the material enters the separation chamber 101 smoothly and orderly, effectively preventing accumulation and blockage at the inlet. Subsequently, the first motor 105 starts, driving the rotating shaft 104 to rotate, and several rotating disks 106 mounted on the rotating shaft 104 rotate synchronously. Under centrifugal force, several arc-shaped blades 107 connected by pins at the edges of the rotating disks 106 are flexibly thrown outwards. The pin connection structure effectively ensures that the arc-shaped blades 107 can both swing flexibly and withstand impact during engagement. The thrown arc-shaped blades 107 engage with several fixed cutters 108 firmly installed on the inner wall of the separation chamber 101 during their movement. This design, which utilizes centrifugal force to throw out and engage, achieves high-speed dynamic cutting, significantly improving the efficiency and thoroughness of segmenting complex wire harnesses compared to static cutting. As the wire harness passes between the high-speed meshing arc blade 107 and the fixed cutter 108, it is effectively cut and separated into smaller segments.

[0028] The cut and separated wire harness material falls into the decomposition chamber 111 below. At this time, the second motor 115 starts working, driving two decomposition rollers 113, symmetrically mounted inside the decomposition chamber 111 via bearings, to rotate in opposite directions. Several decomposition teeth 114, densely distributed on the outer side of each decomposition roller 113, mesh with each other during rotation. The decomposed material falls between the two rotating decomposition rollers 113, subjected to a combined force of continuous crushing and tearing generated by the meshing decomposition teeth 114. This powerful mechanical action causes the tough plastic sheath attached to the wire core to be fully broken and pulverized, while simultaneously causing a more thorough dissociation of components of different materials (such as the metal conductor and the plastic insulation layer), thereby significantly improving the final material's sorting purity.

[0029] After being repeatedly meshed by the decomposition teeth 114, the crushed material eventually falls into the discharge trough 117 opened at the top of the base 116. The discharge trough 117 is designed as a downward-sloping ramp, which realizes the discharge of material without power, effectively simplifies the discharge structure and reduces the operating energy consumption of the device, and guides the crushed material to slide smoothly out of the base 116 by its own weight.

[0030] In addition, the separation chamber 101 and the decomposition chamber 111 are bolted together. This connection method allows users to replace the internal core components according to the physical characteristics of different wire harnesses. For example, they can install decomposition rollers 113 with different tooth profiles to meet a wider range of wire harness recycling needs.

[0031] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A wire harness recycling device for automotive wire harness processing, comprising a separation chamber (101), characterized in that: The top of the separation chamber (101) is bolted to a protective cover (102), and the top of the protective cover (102) is bolted to a feed hopper (103). Inside the separation chamber (101), a rotating shaft (104) is mounted via bearings. One end of the rotating shaft (104) extends through the connection between the separation chamber (101) and the protective cover (102) and is connected to a first motor (105). The first motor (105) is bolted to the outside of the separation chamber (101) and the protective cover (102). Several rotating disks (106) are spaced apart on the outside of the rotating shaft (104). Several arc-shaped blades (107) are spaced apart on the edge of the rotating disks (106) via pins. Several fixed cutters (108) are fixedly mounted on the inner wall of the separation chamber (101) and mesh with the arc-shaped blades (107).

2. The wire harness recycling device for automotive wire harness processing as described in claim 1, characterized in that: The separation chamber (101) is provided with first reinforcing ribs (109) spaced apart on both sides of its outer width direction, and with first diagonal bracing plates (110) spaced apart on both sides of its outer length direction.

3. The wire harness recycling device for automotive wire harness processing as described in claim 2, characterized in that: The bottom of the separation chamber (101) is bolted to a decomposition chamber (111). Several second reinforcing ribs (112) are installed at intervals on the outside of the decomposition chamber (111). Two decomposition rollers (113) are symmetrically installed inside the decomposition chamber (111) via bearings.

4. The wire harness recycling device for automotive wire harness processing as described in claim 3, characterized in that: A plurality of decomposition teeth (114) are fixedly installed on the outer side of the decomposition roller (113), and the decomposition teeth (114) on the outer side of the two decomposition rollers (113) mesh with each other.

5. The wire harness recycling device for automotive wire harness processing as described in claim 4, characterized in that: One end of the decomposition roller (113) extends and penetrates to the outside of the decomposition chamber (111), and is connected to the output end of the second motor (115) through the shaft. The second motor (115) is installed on the outside of the decomposition chamber (111) by bolts.

6. The wire harness recycling device for automotive wire harness processing as described in claim 5, characterized in that: The bottom of the decomposition chamber (111) is bolted to a base (116). The top of the base (116) is provided with a discharge groove (117) that communicates with the decomposition chamber (111), and the discharge groove (117) extends downwards to one side of the width of the base (116).

7. The wire harness recycling device for automotive wire harness processing as described in claim 6, characterized in that: A fixing plate (118) is fixedly installed at the bottom of the base (116). Several second diagonal bracing plates (119) are installed at intervals along the length of the base (116) and the fixing plate (118) at the angle between them.

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