Powerful plastic crusher with metal detecting and automatic removing functions

Abstract

The invention relates to the technical field of plastic crushing equipment, in particular to a powerful plastic crusher with metal detection and automatic removal functions, which comprises a base, a crushing box and a feeding frame are mounted at the upper end of the base, a removal assembly is arranged in the feeding frame and used for removing metal-containing plastic, a crushing assembly is arranged in the crushing box, and the crushing assembly is used for removing metal-containing plastic. A pair of driving shafts, a pair of driven shafts and a rotating shaft are rotationally connected into the crushing box, the first crushing rollers are all installed on the circumferential faces of the driving shafts, the second crushing rollers are all installed on the circumferential faces of the driven shafts, the flow guide plate is installed on the circumferential face of the rotating shaft, and the multiple first electromagnets are all installed in the flow guide plate. The output end of a servo motor installed on the surface of the crushing box is fixedly connected with the rotating shaft, an isolation frame is installed in the crushing box and located between the first crushing roller and the second crushing roller, metal is detected and separated through the effect of the removing assembly, the second crushing roller is prevented from being damaged by the metal, and the overall crushing efficiency is remarkably improved.

Description

Technical Field

[0001] This invention relates to the field of plastic crushing equipment technology, and more specifically to a powerful plastic crusher with metal detection and automatic rejection functions. Background Technology

[0002] A plastic crusher is a mechanical device used to crush various plastic materials. It is widely used in plastic recycling and processing. Its core function is to crush waste plastics or plastic scraps into smaller particles for subsequent granulation, reprocessing or recycling.

[0003] The shortcomings of existing technology: Existing plastic crushing equipment has obvious shortcomings when processing plastics containing metal. When plastics containing metal are mixed with pure plastics for crushing, the metal referred to here is magnetic metal. In order to avoid metal damage to the crushing roller and ensure its service life, it is usually necessary to reduce the speed of the crushing roller, which directly leads to a significant decrease in plastic crushing efficiency. It is difficult to meet the needs when crushing large quantities of plastics. To this end, we propose a high-power plastic crusher with metal detection and automatic rejection functions. Summary of the Invention

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a powerful plastic crusher with metal detection and automatic rejection functions to solve the problems existing in the background art.

[0005] This invention provides the following technical solution: a high-powered plastic crusher with metal detection and automatic rejection functions, comprising a base, a crushing box and a feeding frame installed on the upper end of the base, a rejection component installed inside the feeding frame for removing plastic containing metal, a crushing component installed inside the crushing box, the crushing component comprising a first crushing roller, a second crushing roller, a guide plate and a first electromagnet, a pair of drive shafts, a pair of driven shafts and a rotating shaft rotatably connected inside the crushing box, the first crushing rollers being mounted on the circumferential surface of the drive shafts, the second crushing rollers being mounted on the circumferential surface of the driven shafts, the guide plate being mounted on the circumferential surface of the rotating shaft, a plurality of first electromagnets being mounted inside the guide plate, a servo motor output end mounted on the surface of the crushing box being fixedly connected to the rotating shaft, and an isolation frame installed inside the crushing box, the isolation frame being located between the first crushing roller and the second crushing roller; Preferably, a drive motor is installed on the upper end of the base, and a connecting shaft is installed on the output end of the drive motor. The connecting shaft is connected to the drive shaft through a transmission sprocket set. Gears that mesh with each other are installed on the circumferential surfaces of both the drive shaft and the driven shaft. The drive shaft and the driven shaft are connected through a differential sprocket set.

[0006] Preferably, the rejection assembly includes a first rotating roller, a second rotating roller, a first conveyor belt, and a second conveyor belt. A pair of first rotating rollers and a pair of second rotating rollers are rotatably connected within the feeding frame. The first conveyor belt is connected between the first rotating rollers, and the second conveyor belt is connected between the second rotating rollers. A plurality of second electromagnets are installed inside the second conveyor belt.

[0007] Preferably, a conductive ring is installed inside the feeding rack, and a conductive contact installed on the second electromagnet is slidably connected to the conductive ring. The conductive ring is provided with a conductive area and an insulating area.

[0008] Preferably, a fixing frame is installed inside the crushing box, and a metal detector is installed on the surface of the fixing frame, the metal detector being located behind the first conveyor belt.

[0009] Preferably, a discharge box is installed at the lower end of the base, a separation mechanism is provided inside the discharge box, and a first discharge port and a second discharge port are provided at the lower end of the discharge box.

[0010] Preferably, the separation mechanism includes a third connecting roller, a third conveyor belt, and a magnetic suction plate. A pair of the third connecting rollers are rotatably connected in the discharge box, the third conveyor belt is connected between the third connecting rollers, and the magnetic suction plate is installed in the discharge box and located in the third conveyor belt.

[0011] Preferably, a blower is installed inside the discharge box, and an air pump is installed on the upper end of the base. The output end of the air pump is connected to the blower via a conveying pipe.

[0012] The technical effects and advantages of this invention are as follows: This invention separates and transports plastics during the conveying process by using a rejection component, allowing for the separation of metal-containing and metal-free plastics. Metal-containing plastics enter the crushing chamber and are crushed by the first crushing roller at a slower speed to ensure their lifespan. Metal-free plastics are crushed efficiently by the second crushing roller. As the plastics fall, a first electromagnet in the guide plate performs a secondary metal detection to prevent small amounts of metal from entering the second crushing roller and affecting its lifespan. If the guide plate attracts metal, a servo motor drives the rotating shaft and guide plate to rotate above the first crushing roller. After power is cut off, the metal-containing plastics fall into the first crushing roller for crushing, while the metal-free plastics can be directly collected without secondary metal separation. This dual metal detection not only prevents metal from damaging the second crushing roller but also significantly improves the overall crushing efficiency. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the structure on the right side of the present invention; Figure 3This is a schematic diagram of the structure viewed from the left side in this invention; Figure 4 This is a schematic diagram of the flow guide plate in this invention; Figure 5 This is a schematic diagram of the structure of the component to be removed in this invention; Figure 6 This is a schematic diagram of the structure of the component to be removed in this invention, viewed from the front. Figure 7 In this invention Figure 6 A schematic diagram of the structure of part A; Figure 8 This is a schematic diagram of the structure of the second electromagnet in this invention; Figure 9 This is a schematic diagram of the conductive ring structure in this invention; Figure 10 This is a schematic diagram of the separation mechanism in this invention; Figure 11 This is a schematic diagram of the structure of the guide plate when it rotates and adsorbs metal in this invention; Figure 12 This is a schematic diagram of the structure when the guide plate rotates to release metal in this invention.

[0014] The attached figures are labeled as follows: 1. Base; 101. Crushing box; 102. Feeding frame; 2. Removal assembly; 201. First rotating roller; 202. Second rotating roller; 203. First conveyor belt; 204. Second conveyor belt; 205. Second electromagnet; 206. Conductive ring; 2061. Conductive area; 2062. Insulating area; 3. Crushing assembly; 301. Driven shaft; 302. Driven shaft; 303. Rotating shaft; 304. First crushing roller; 305. Second crushing roller; 306. Guide tube. 307. Plate; 308. First electromagnet; 309. Servo motor; 3000. Isolation frame; 4. Drive motor; 401. Connecting shaft; 402. Transmission sprocket assembly; 403. Gear; 404. Differential sprocket assembly; 5. Fixing frame; 501. Metal detector; 6. Discharge box; 601. First discharge port; 602. Second discharge port; 7. Separation mechanism; 701. Third connecting roller; 702. Third conveyor belt; 703. Magnetic suction plate; 704. Fan coil; 705. Air pump; 706. Conveying pipe. Detailed Implementation

[0015] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The powerful plastic crusher with metal detection and automatic rejection functions involved in the present invention is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0016] like Figure 1-4 As shown, in one embodiment, a high-powered plastic crusher with metal detection and automatic rejection functions is proposed, including a base 1. A crushing box 101 and a feeding rack 102 are installed on the upper end of the base 1. A rejection component 2 is provided inside the feeding rack 102 for removing plastic containing metal. A crushing component 3 is provided inside the crushing box 101. The crushing component 3 includes a first crushing roller 304, a second crushing roller 305, a guide plate 306, and a first electromagnet 307. A pair of drive shafts 301 and a pair of driven shafts 307 are rotatably connected inside the crushing box 101. The driving shaft 302 and the rotating shaft 303, the first crushing roller 304 are all mounted on the circumferential surface of the driving shaft 301, the second crushing roller 305 are all mounted on the circumferential surface of the driven shaft 302, the guide plate 306 is mounted on the circumferential surface of the rotating shaft 303, and multiple first electromagnets 307 are all mounted inside the guide plate 306. The output end of the servo motor 308 mounted on the surface of the crushing box 101 is fixedly connected to the rotating shaft 303. An isolation frame 309 is installed inside the crushing box 101, and the isolation frame 309 is located between the first crushing roller 304 and the second crushing roller 305.

[0017] In practical application, plastic is conveyed to the crushing box 101 via the rejection component 2 in the feeding rack 102. During the conveying process, the rejection component 2 removes metal from the plastic, separating the metal-containing plastic from the metal-free plastic. The metal-containing plastic enters the crushing box 101 and is crushed by the first crushing roller 304. After the metal is separated by the rejection component 2, the metal-free plastic is crushed by the second crushing roller 305. Since the second crushing roller 305 is designed for crushing metal-free plastic, its higher rotation speed improves the crushing efficiency. During the falling process, the plastic can be further detected by the first electromagnet 307 in the guide plate 306, preventing small amounts of metal from being crushed by the second crushing roller 305 and affecting its service life. When metal is adsorbed on the guide plate 306, a servo motor can be controlled to... When the servo motor 308 operates, it drives the rotating shaft 303 to rotate, which in turn drives the guide plate 306 to rotate, moving the guide plate 306 above the first crushing roller 304. Simultaneously, the plastic conveying stops, and then the first electromagnet 307 is de-energized. The metal-containing plastic adsorbed on the guide plate 306 falls between the first crushing rollers 304 for crushing. Since the first crushing roller 304 is designed to crush metal-containing plastics, its rotation speed is generally slow to ensure its service life, resulting in low plastic crushing efficiency. By separating and crushing plastics containing metal and those without metal, and eliminating the need to further separate the metal from the crushed plastics without metal, the plastics can be directly discharged and collected, significantly improving the plastic crushing efficiency. At the same time, through two metal detections, a small amount of metal can be effectively prevented from falling into the second crushing roller 305.

[0018] like Figure 2 As shown, in one embodiment, a drive motor 4 is installed on the upper end of the base 1, and a connecting shaft 401 is installed on the output end of the drive motor 4. The connecting shaft 401 is connected to the drive shaft 301 through a transmission sprocket set 402. Gears 403 that mesh with each other are installed on the circumferential surfaces of the drive shaft 301 and the driven shaft 302. The drive shaft 301 and the driven shaft 302 are connected through a differential sprocket set 404.

[0019] In practical application, the embodiments of the present invention control the operation of the drive motor 4, which drives the connecting shaft 401 to rotate. The connecting shaft 401 drives the drive shaft 301 to rotate through the transmission sprocket set 402, which in turn drives a pair of first crushing rollers 304 to rotate relative to each other, crushing plastics containing metal. At the same time, through the action of the differential sprocket set 404, the driven shaft 302 can be driven to rotate, which in turn drives a pair of second crushing rollers 305 to rotate at high speed, achieving efficient crushing of plastics without metal.

[0020] like Figure 5-8 As shown, in one embodiment, the rejection assembly 2 includes a first rotating roller 201, a second rotating roller 202, a first conveyor belt 203, and a second conveyor belt 204. A pair of first rotating rollers 201 and a pair of second rotating rollers 202 are rotatably connected within the feeding frame 102. The first conveyor belt 203 is connected between the first rotating rollers 201, and the second conveyor belt 204 is connected between the second rotating rollers 202. A plurality of second electromagnets 205 are installed inside the second conveyor belt 204.

[0021] In practical application, the plastic is conveyed onto the first conveyor belt 203, which then conveys the plastic forward. When the plastic moves below the second conveyor belt 204, the second electromagnet 205 in the second conveyor belt 204 can attract the metal-containing plastic to the surface of the second conveyor belt 204. Subsequently, the second conveyor belt 204 rotates to separate the materials. The discharge point of the second conveyor belt 204 is at the front, so the plastic can fall into the first crushing roller 304, while the discharge point of the first conveyor belt 203 is at the rear, so the plastic can fall into the second crushing roller 305. This achieves the effect of extracting the metal-containing plastic for separate processing.

[0022] like Figure 6-9 As shown, in one embodiment, a conductive ring 206 is installed inside the feeder 102, and a conductive contact installed on the second electromagnet 205 is slidably connected to the conductive ring 206. The conductive ring 206 is provided with a conductive area 2061 and an insulating area 2062.

[0023] In practical application, when the second conveyor belt 204 rotates, the conductive contact on the second electromagnet 205 contacts the conductive ring 206, achieving the effect of energizing the second electromagnet 205. The conductive contact is elastically designed and can extend and retract within the second electromagnet 205 to ensure stable contact with the conductive ring 206. When the first conveyor belt 203 and the second conveyor belt 204 overlap, the conductive contact will be located in the conductive area 2061. The second electromagnet 205 can attract plastic containing metal. When the second conveyor belt 204 drives the plastic containing metal to rotate upward and convey it forward, the conductive contact will be located in the insulating area 2062. Subsequently, the plastic containing metal will be discharged in front of the second conveyor belt 204 and finally fall onto the first crushing roller 304 for crushing.

[0024] like Figure 2 , 3 As shown in Figures 11 and 12, in one embodiment, a fixing frame 5 is installed inside the crushing box 101, and a metal detector 501 is installed on the surface of the fixing frame 5. The metal detector 501 is located behind the first conveyor belt 203. The cone-shaped opening of the upper part of the crushing box 101 is made of non-metallic material to avoid affecting the accuracy of metal detection.

[0025] In practical application, when the first conveyor belt 203 transports plastic forward, the plastic will fall downwards. During the falling process, the metal detector 501 can further detect the plastic. If metal is detected, the metal detector 501 transmits a signal to the controller. The controller controls the servo motor 308 to rotate, causing the guide plate 306 to rotate backwards, blocking the space above the second crushing roller 305 to prevent plastic containing metal from falling into it. Then, the servo motor 308 is reversed to move the plastic containing metal, which is attracted by the first electromagnet 307 on the guide plate 306, to the space above the first crushing roller 304. Then, the first electromagnet 307 is de-energized. At this time, the magnetism on the guide plate 306 disappears, and the plastic containing metal will fall into the first crushing roller 304 for crushing. This minimizes the possibility of metal falling into the second crushing roller 305, ensuring the efficiency of the equipment and its service life.

[0026] like Figure 3 As shown, in one embodiment, a discharge box 6 is installed at the lower end of the base 1, a separation mechanism 7 is provided inside the discharge box 6, and a first discharge port 601 and a second discharge port 602 are provided at the lower end of the discharge box 6.

[0027] In practical application, after the first crushing roller 304 and the second crushing roller 305 crush the plastic, the plastic without metal is discharged through the first discharge port 601, while the plastic containing metal is adsorbed by the separation mechanism 7, so that the metal is separated from the plastic. Finally, all the plastic is discharged through the first discharge port 601, while the metal is discharged through the second discharge port 602, thus achieving the effect of separate discharge and collection.

[0028] like Figure 3 and 10 As shown, in one embodiment, the separation mechanism 7 includes a third connecting roller 701, a third conveyor belt 702 and a magnetic suction plate 703. A pair of third connecting rollers 701 are rotatably connected in the discharge box 6, the third conveyor belt 702 is connected between the third connecting rollers 701, and the magnetic suction plate 703 is installed in the discharge box 6 and located in the third conveyor belt 702.

[0029] In practical application, after the plastic containing metal is crushed by the first crushing roller 304, it falls onto the third conveyor belt 702. The metal can be attracted by the magnetic plate 703, and the plastic can be blown backward from the third conveyor belt 702 by the wind force, so that the plastic is discharged through the first discharge port 601, while the metal is conveyed backward by the third conveyor belt 702 and finally discharged through the second discharge port 602.

[0030] like Figure 3 and 10 As shown, in one embodiment, a fan coil unit 704 is installed inside the discharge box 6, and an air pump 705 is installed on the upper end of the base 1. The output end of the air pump 705 is connected to the fan coil unit 704 through a conveying pipe 706.

[0031] In practical application, the embodiment of the present invention controls the operation of the air pump 705, which delivers gas to the fan plate 704 through the conveying pipe 706. The fan plate 704 sprays gas backward, which blows the plastic on the third conveyor belt 702 backward, separating it from the metal adsorbed on the magnetic plate 703. Finally, it is discharged through the first discharge port 601. The metal adsorbed on the third conveyor belt 702 moves backward as the third conveyor belt 702 rotates. When it passes the fan plate 704, it falls forward and is finally discharged through the second discharge port 602.

[0032] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change. Secondly: The accompanying drawings of the embodiments disclosed in this invention only involve the structures involved in the embodiments disclosed in this invention. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this invention can be combined with each other. In conclusion, 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, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A high-powered plastic crusher with metal detection and automatic rejection functions, comprising a base (1), characterized in that: The base (1) is equipped with a crushing box (101) and a feeding rack (102) at its upper end. The feeding rack (102) is equipped with a rejection assembly (2) for removing plastic containing metal. The crushing box (101) is equipped with a crushing assembly (3), which includes a first crushing roller (304), a second crushing roller (305), a guide plate (306), and a first electromagnet (307). A pair of drive shafts (301), a pair of driven shafts (302), and a rotating shaft (303) are rotatably connected inside the crushing box (101). The first crushing roller (304) All 304 are mounted on the circumferential surface of the drive shaft (301), the second crushing roller (305) is mounted on the circumferential surface of the driven shaft (302), the guide plate (306) is mounted on the circumferential surface of the rotating shaft (303), and multiple first electromagnets (307) are mounted inside the guide plate (306). The output end of the servo motor (308) mounted on the surface of the crushing box (101) is fixedly connected to the rotating shaft (303). An isolation frame (309) is installed inside the crushing box (101), and the isolation frame (309) is located between the first crushing roller (304) and the second crushing roller (305).

2. The high-powered plastic crusher with metal detection and automatic rejection function according to claim 1, characterized in that: A drive motor (4) is installed on the upper end of the base (1). A connecting shaft (401) is installed on the output end of the drive motor (4). The connecting shaft (401) is connected to the drive shaft (301) through a transmission sprocket set (402). Both the drive shaft (301) and the driven shaft (302) are equipped with meshing gears (403) on their circumferential surfaces. The drive shaft (301) and the driven shaft (302) are connected through a differential sprocket set (404).

3. A high-powered plastic crusher with metal detection and automatic rejection function according to claim 1, characterized in that: The rejection assembly (2) includes a first rotating roller (201), a second rotating roller (202), a first conveyor belt (203), and a second conveyor belt (204). A pair of first rotating rollers (201) and a pair of second rotating rollers (202) are rotatably connected in the feed rack (102). The first conveyor belt (203) is connected between the first rotating rollers (201), and the second conveyor belt (204) is connected between the second rotating rollers (202). A plurality of second electromagnets (205) are installed in the second conveyor belt (204).

4. A high-powered plastic crusher with metal detection and automatic rejection function according to claim 3, characterized in that: A conductive ring (206) is installed inside the feeding rack (102). The conductive contact installed on the second electromagnet (205) is slidably connected to the conductive ring (206). The conductive ring (206) is provided with a conductive area (2061) and an insulating area (2062).

5. A high-powered plastic crusher with metal detection and automatic rejection function according to claim 1, characterized in that: A fixing frame (5) is installed inside the crushing box (101), and a metal detector (501) is installed on the surface of the fixing frame (5). The metal detector (501) is located behind the first conveyor belt (203).

6. A high-powered plastic crusher with metal detection and automatic rejection function according to claim 1, characterized in that: The base (1) is equipped with a discharge box (6) at its lower end. The discharge box (6) is equipped with a separation mechanism (7). The discharge box (6) is equipped with a first discharge port (601) and a second discharge port (602) at its lower end.

7. A high-powered plastic crusher with metal detection and automatic rejection function according to claim 6, characterized in that: The separation mechanism (7) includes a third connecting roller (701), a third conveyor belt (702) and a magnetic suction plate (703). A pair of the third connecting rollers (701) are rotatably connected in the discharge box (6). The third conveyor belt (702) is connected between the third connecting rollers (701). The magnetic suction plate (703) is installed in the discharge box (6) and is located in the third conveyor belt (702).

8. A high-powered plastic crusher with metal detection and automatic rejection function according to claim 7, characterized in that: The discharge box (6) is equipped with a fan (704), and the base (1) is equipped with an air pump (705). The output end of the air pump (705) is connected to the fan (704) through a conveying pipe (706).

Images