A device for recovering offcuts

Abstract

The utility model discloses a kind of recovery devices of edge material, it is related to plastic tank production field, its technical key points are: including conveying frame, the top of conveying frame is equipped with edge material recovery conveyor belt, the top of conveying frame is equipped with isolation mechanism, the isolation mechanism includes the mounting bracket of being equipped in the both sides of conveying frame, the top of mounting bracket is equipped with isolation cylinder, the piston rod end of isolation cylinder is equipped with isolation movable seat, the isolation movable seat is located in the top of edge material recovery conveyor belt, two the isolation movable seat is formed closed interval by interval, the side of isolation movable seat is equipped with isolation cavity, so that the isolation cavity of two the isolation movable seat can be interconnected, the bottom of isolation movable seat is equipped with the discharge port of the intercommunication isolation cavity, to solve the technical problem that water gap edge material of plastic tank is easy to splash after cutting, and unable to fall into the recovery conveyor belt below.

Description

Technical Field

[0001] This utility model relates to the field of plastic can production, and in particular to a device for recycling scrap materials. Background Technology

[0002] In the injection or blow molding process of plastic products, molten plastic fills the mold cavity through the runner system. The excess part formed after cooling and solidification at the feed point connecting the product body to the runner system is called the "gate". For common plastic cans (such as food cans and daily chemical product cans made of PE and PP), the top is usually designed with a can opening or flange structure. The sprue at this point (usually called the "top sprue") is a critical part that must be removed after demolding. The industry generally uses automated sprue cutting stations to complete this process. When a plastic can with a sprue is transported to the cutting section, the cutting section cuts the sprue at the top of the plastic can. Ideally, the cut sprue scrap should fall directly to the scrap recycling conveyor belt below under its own weight and be collected, crushed, and recycled. However, the polymer materials used to produce plastic cans (such as PP and PE) have excellent toughness and elasticity. At the moment of cutting, the cutting section applies huge shear force and compressive stress to the sprue scrap, causing violent elastic deformation inside the sprue scrap. When the cutting is completed and the force of the cutter disappears instantly, the elastic potential energy accumulated in the sprue scrap will be released rapidly, causing the sprue scrap to splash. The splashed scrap cannot fall accurately into the recycling conveyor belt, but is scattered inside the cutting equipment, on the surrounding ground, or even further away. This not only results in a direct waste of raw materials, but more seriously, it requires operators to frequently stop the machine for manual cleaning, which greatly disrupts the continuity of production, reduces overall production efficiency, and increases labor costs. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a scrap recycling device, which aims to solve the technical problem that the scrap material from the sprue of plastic cans is prone to splashing after cutting and cannot fall into the recycling conveyor belt below.

[0004] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A waste material recycling device includes a conveyor frame with a waste material recycling conveyor belt at the top. The top of the conveyor frame also has an isolation mechanism, which includes mounting frames on both sides of the conveyor frame. An isolation cylinder is mounted on the top of each mounting frame, and an isolation movable seat is mounted at the piston rod end of the isolation cylinder. The isolation movable seat is located above the waste material recycling conveyor belt, and two isolation movable seats are spaced apart to form a closed gap. An isolation cavity is formed on one side of each isolation movable seat, allowing the isolation cavities of the two isolation movable seats to communicate with each other. An outlet communicating with the isolation cavity is formed at the bottom of each isolation movable seat, located above the waste material recycling conveyor belt. A cutting section and a clamping section are provided on one side of the interior of each isolation cavity. The cutting section is located above the clamping section. The cutting section is used to cut the sprue waste from plastic cans, and the clamping section is used to clamp the plastic cans.

[0005] Plastic cans with sprue scrap are first carried and transported by a scrap recovery conveyor belt. When the plastic can reaches the designated cutting position, the recovery conveyor belt temporarily stops running. At this time, the isolation cylinders installed on the mounting brackets on both sides of the conveyor frame work synchronously, pushing the two isolation movable seats to move towards each other, reducing the closed gap between them, and finally connecting the isolation cavities of the two isolation movable seats, completely surrounding the sprue scrap area on the top of the plastic can. The clamping part located inside the isolation cavity moves to firmly clamp the plastic can, keeping it fixed during the cutting process. The cutting part located above the clamping part starts to cut the sprue on the top of the plastic can. At the moment of cutting, the sprue edge material undergoes elastic deformation due to force, but its tendency to splash is effectively blocked and constrained by the closed isolation cavity wall. After the cutting action is completed, the elastic potential energy accumulated in the cut sprue edge material is released, but under the restriction of the isolation cavity, it can only fall under the action of gravity through the specially opened discharge port at the bottom of the isolation cavity onto the edge material recycling conveyor belt directly below it. The edge material recycling conveyor belt transports it (the sprue edge material being transported is collected centrally by a collection device). After the sprue edge material is cleared, the clamping part releases its grip on the plastic can (at this time, the plastic can can be picked up by an external robotic arm). Then, the isolation cylinder drives the isolation movable seat to reset, waiting for the next plastic can to be cut. The closed isolation cavity fundamentally solves the industry problem of tough sprue edge material splashing and scattering due to elastic release, eliminating the need for frequent machine shutdowns to clean up scattered sprue edge material, greatly ensuring the continuity and stability of production, improving overall production efficiency, and reducing labor costs.

[0006] Furthermore, in this application, the clamping part includes a clamping seat disposed on one side of the interior of the isolation cavity, and a clamping block is provided on one side of the clamping seat. The clamping block is elastic, and the clamping blocks of the two isolation cavities are separated to form a clamping interval.

[0007] When the isolation cylinders installed on the mounting brackets on both sides of the conveyor frame work synchronously, they push the two isolation movable seats to move towards each other, reducing the closing gap between them. Ultimately, the isolation cavities of the two isolation movable seats are connected and linked. When the two isolation movable seats are closed, the elastic clamping blocks on both sides also move closer to each other, working together to form a flexible clamping gap on the body of the plastic can. This elastic clamping method can firmly fix the plastic can, avoiding poor cutting or wear of the cutting part caused by the shaking of the plastic can, while effectively preventing indentations or deformation of the plastic can caused by rigid clamping.

[0008] Furthermore, in this application, the clamping block is arc-shaped, and the concave surface of the clamping block faces the clamping interval.

[0009] When the two isolating seats are closed, the two arc-shaped clamping blocks come together from both sides of the plastic can, and their concave surfaces can perfectly fit and cover the circular body or neck of the plastic can; this design makes the clamping force evenly distributed along the curvature of the plastic can, forming a flexible, hugging clamping interval.

[0010] Furthermore, in this application, the cutting part includes a movable seat disposed on one side of the interior of the isolation cavity, a cutting cylinder is provided on one side of the movable seat, a blade holder is provided at the piston rod end of the cutting cylinder, a cutting blade is provided at one end of the blade holder, and the cutting blades of the two isolation cavities are separated to form a cutting interval, the cutting interval being located above the clamping interval.

[0011] Furthermore, in this application, a mounting cavity is provided at one end of the blade holder, and one end of the cutting blade is inserted into the mounting cavity. A locking hole is provided on one side of the blade holder, and the locking hole communicates with the mounting cavity. A locking bolt is threaded into the locking hole, and the locking bolt abuts against the cutting blade.

[0012] Furthermore, in this application, a transmission cavity is provided on one side of the isolation cavity, and a transmission screw is rotatably connected inside the transmission cavity. A transmission nut is sleeved on the outside of the transmission screw, and the transmission nut is connected to the adjacent movable seat. An adjustment motor is provided inside the isolation cavity, and the adjustment motor drives the transmission screw to rotate.

[0013] Furthermore, in this application, a guide groove is provided on one side of the interior of the isolation cavity, and a guide slider is provided on one side of the movable seat, the guide slider slidingly engaging with the adjacent guide groove.

[0014] Furthermore, in this application, a sealing strip is provided on one side of the isolation movable seat. The sealing strip is elastic, so that when the two isolation movable seats are brought close to each other, the two adjacent sealing strips abut against each other.

[0015] Furthermore, in this application, a rejection mechanism is provided on one side of the conveyor frame. The rejection mechanism includes a rejection seat located on one side of the conveyor frame. A rejection cylinder is provided on the top of the rejection seat. A rejection block is provided at one end of the rejection cylinder. The rejection block is located near the top of the edge material recycling conveyor belt.

[0016] Furthermore, in this application, a recycling box is provided on the other side of the conveyor frame, and a recycling cavity is provided on the top of the recycling box for receiving sprue edge material.

[0017] This utility model has the following beneficial effects: Plastic cans with sprue scrap are first carried and transported by a scrap recovery conveyor belt. When the plastic can reaches the designated cutting position, the recovery conveyor belt temporarily stops running. At this time, the isolation cylinders installed on the mounting brackets on both sides of the conveyor frame work synchronously, pushing the two isolation movable seats to move towards each other, reducing the closed gap between them, and finally connecting the isolation cavities of the two isolation movable seats, completely surrounding the sprue scrap area on the top of the plastic can. The clamping part located inside the isolation cavity moves to firmly clamp the plastic can, keeping it fixed during the cutting process. The cutting part located above the clamping part starts to cut the sprue on the top of the plastic can. At the moment of cutting, the sprue edge material undergoes elastic deformation due to force, but its tendency to splash is effectively blocked and constrained by the closed isolation cavity wall. After the cutting action is completed, the elastic potential energy accumulated in the cut sprue edge material is released, but under the restriction of the isolation cavity, it can only fall under the action of gravity through the specially opened discharge port at the bottom of the isolation cavity onto the edge material recycling conveyor belt directly below it. The edge material recycling conveyor belt transports it (the sprue edge material being transported is collected centrally by a collection device). After the sprue edge material is cleared, the clamping part releases its grip on the plastic can (at this time, the plastic can can be picked up by an external robotic arm). Then, the isolation cylinder drives the isolation movable seat to reset, waiting for the next plastic can to be cut. The closed isolation cavity fundamentally solves the industry problem of tough sprue edge material splashing and scattering due to elastic release, eliminating the need for frequent machine shutdowns to clean up scattered sprue edge material, greatly ensuring the continuity and stability of production, improving overall production efficiency, and reducing labor costs. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model.

[0019] Figure 2 This is a schematic diagram of the isolation cavity of this utility model.

[0020] Figure 3 This is a schematic diagram of the closed gap structure of this utility model.

[0021] Figure 4This is a structural schematic diagram of the sealing strip of this utility model.

[0022] Figure 5 This is a schematic diagram of the cutting blade of this utility model.

[0023] In the attached figures, the following labels are used: 110. Conveyor frame; 120. Edge material recycling conveyor belt; 121. Plastic can; 121. Sprue edge material; 200. Isolation mechanism; 210. Mounting frame; 211. Isolation cylinder; 212. Isolation movable seat; 213. Isolation cavity; 214. Discharge port; 215. Closing interval; 216. Sealing strip; 220. Cutting part; 221. Movable seat; 222. Cutting cylinder; 223. Knife holder; 2231. Mounting cavity; 2232. Locking hole; 2233. Locking screw 2234. Bolt; 224. Cutting blade; 224. Transmission cavity; 2241. Adjusting motor; 2242. Transmission screw; 2243. Transmission nut; 225. Guide groove; 2251. Guide slider; 226. Cutting interval; 230. Clamping part; 231. Clamping seat; 232. Clamping block; 233. Clamping interval; 300. Removal mechanism; 310. Removal seat; 320. Removal cylinder; 330. Removal block; 340. Recovery box; 341. Recovery cavity. Detailed Implementation

[0024] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0025] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows for communication; 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0027] Reference Figures 1-5 In some specific embodiments, an edge material recycling device includes a conveyor frame 100, an edge material recycling conveyor belt 110 at the top of the conveyor frame 100, and an isolation mechanism 200 at the top of the conveyor frame 100. The isolation mechanism 200 includes mounting frames 210 on both sides of the conveyor frame 100, an isolation cylinder 211 at the top of the mounting frame 210, and an isolation movable seat 212 at the piston rod end of the isolation cylinder 211. The isolation movable seat 212 is located above the edge material recycling conveyor belt 110, and the two isolation movable seats 212 are spaced apart to form a closed gap 215. An isolation cavity 213 is provided on one side of the isolation movable seat 212, so that the isolation cavities 213 of the two isolation movable seats 212 can be connected to each other. A discharge port 214 connected to the isolation cavity 213 is provided at the bottom of the isolation movable seat 212. The discharge port 214 is located above the edge material recycling conveyor belt 110. A cutting part 220 and a clamping part 230 are provided on one side inside the isolation cavity 213. The cutting part 220 is located above the clamping part 230. The cutting part 220 is used to cut the sprue edge material 121 of the plastic can 120, and the clamping part 230 is used to clamp the plastic can 120.

[0028] Through the above technical solution, the plastic can 120 with sprue edge material 121 is first carried and transported by the edge material recycling conveyor belt 110. When the plastic can 120 reaches the designated cutting position, the edge material recycling conveyor belt 110 temporarily stops running. At this time, the isolation cylinders 211 installed on the mounting brackets 210 on both sides of the conveyor frame 100 work synchronously to push the two isolation movable seats 212 to move towards each other, so that the closed gap 215 between them is reduced. Finally, the isolation cavities 213 of the two isolation movable seats 212 are connected and connected, completely surrounding the sprue edge material 121 area on the top of the plastic can 120. The clamping part 230 located inside the isolation cavity 213 is activated to firmly clamp the plastic can 120 and keep it fixed during the cutting process. The cutting part 220 located above the clamping part 230 is activated to cut the sprue on the top of the plastic can 120. At the moment of cutting, the sprue scrap 121 undergoes elastic deformation due to the force applied, but its tendency to splash is effectively blocked and constrained by the enclosed isolation cavity 213. After the cutting action is completed, the elastic potential energy accumulated in the cut-off sprue scrap 121 is released, but under the restriction of the isolation cavity 213, it can only fall under the action of gravity through the specially opened discharge port 214 at the bottom of the isolation cavity 213 onto the scrap recovery conveyor belt 110 directly below it. The scrap recovery conveyor belt 110 transports it (the sprue scrap 121 being transported is collected centrally by a collection device), and the sprue scrap is then transported to the sprue. After the edge material 121 is removed, the clamping part 230 releases its grip on the plastic can 120 (at this time, the plastic can 120 can be picked up by an external robotic arm). Then, the isolation cylinder 211 drives the isolation movable seat 212 to reset, waiting for the next plastic can 120 to be cut for the sprue edge material 121. The closed isolation cavity 213 fundamentally solves the industry problem of the tough sprue edge material 121 splashing and scattering due to elastic release. There is no need to frequently stop the machine to clean up the scattered sprue edge material 121, which greatly ensures the continuity and stability of production, improves the overall production efficiency, and reduces labor costs.

[0029] Reference Figures 2-5 In some specific embodiments, the clamping part 230 includes a clamping seat 231 disposed on one side of the interior of the isolation cavity 213, and a clamping block 232 is provided on one side of the clamping seat 231. The clamping block 232 is elastic, and the clamping blocks 232 of the two isolation cavities 213 are separated to form a clamping interval 233.

[0030] Through the above technical solution, when the isolation cylinders 211 installed on the mounting brackets 210 on both sides of the conveyor frame 100 work synchronously, they push the two isolation movable seats 212 to move towards each other, reducing the closing gap 215 between them. Finally, the isolation cavities 213 of the two isolation movable seats 212 are connected and connected. When the two isolation movable seats 212 are closed, the elastic clamping blocks 232 on both sides also move closer to each other and work together on the body of the plastic can 120 to form a flexible clamping gap 233. This elastic clamping method can firmly fix the plastic can 120, avoiding poor cutting or wear of the cutting part 220 caused by the shaking of the plastic can 120, and effectively prevent the plastic can 120 from being indented or deformed by rigid clamping.

[0031] Reference Figures 2-5 In some specific embodiments, the clamping block 232 is arc-shaped, and the concave surface of the clamping block 232 faces the clamping interval 233.

[0032] With the above technical solution, when the two isolating movable seats 212 are closed, the two arc-shaped clamping blocks 232 close from both sides of the plastic can 120, and their concave surfaces can perfectly fit and cover the circular body of the plastic can 120; this design makes the clamping force evenly distributed along the arc of the plastic can 120, forming a flexible, hugging clamping interval 233, which improves the stability of clamping.

[0033] Reference Figures 2-5 In some specific embodiments, the cutting part 220 includes a movable seat 221 disposed on one side of the interior of the isolation cavity 213. A cutting cylinder 222 is provided on one side of the movable seat 221. A blade holder 223 is provided at the piston rod end of the cutting cylinder 222. A cutting blade 2234 is provided at one end of the blade holder 223. The cutting blades 2234 of the two isolation cavities 213 are separated to form a cutting interval 226. The cutting interval 226 is located above the clamping interval 233.

[0034] With the above technical solution, when the clamping part 230 clamps the plastic can 120, the cutting part 220 starts to work. The cutting cylinder 222 on the movable seat 221 drives the piston rod to extend, pushing the knife holder 223 and the cutting blade 2234 installed at its end to move. Through the joint action of the cutting blades 2234 in the two isolation cavities 213, a cutting interval 226 is formed above the clamping interval 233. The two cutting blades 2234 apply shearing force simultaneously from both sides of the root of the sprue edge material 121, thereby cutting off the sprue edge material 121. The two cutting blades 2234 cut simultaneously from both sides, forming a balanced cutting force, which effectively avoids the tilting or vibration of the plastic can 120 caused by single-point force, making the cut more flat and smooth, improving the cutting quality and product consistency.

[0035] Reference Figure 5In some specific embodiments, a mounting cavity 2231 is provided on one end of the blade holder 223, and one end of the cutting blade 2234 is inserted into the mounting cavity 2231. A locking hole 2232 is provided on one side of the blade holder 223, which is connected to the mounting cavity 2231. A locking bolt 2233 is threaded into the locking hole 2232, and the locking bolt 2233 abuts against the cutting blade 2234.

[0036] With the above technical solution, when the cutting blade 2234 is worn or accidentally damaged due to long-term use, the maintenance personnel only need to loosen the locking bolt 2233 in the opposite direction to remove the old cutting blade 2234. Then, the new cutting blade 2234 is inserted into the mounting cavity 2231 and aligned with the position. Then, the locking bolt 2233 is tightened so that its end is tightly pressed against the cutting blade 2234, thus achieving a firm fixation.

[0037] Reference Figure 5 In some specific embodiments, a transmission cavity 224 is provided on one side of the isolation cavity 213. A transmission screw 2242 is rotatably connected inside the transmission cavity 224. A transmission nut 2243 is sleeved on the outside of the transmission screw 2242. The transmission nut 2243 is connected to the adjacent movable seat 221. An adjustment motor 2241 is provided inside the isolation cavity 213. The adjustment motor 2241 drives the transmission screw 2242 to rotate.

[0038] Through the above technical solution, when it is necessary to adjust the height of the cutting blade 2234 to accommodate the sprue edge material 121 of plastic cans 120 of different heights, the adjusting motor 2241 drives the transmission screw 2242 to rotate. The rotational motion of the transmission screw 2242 is converted into the vertical linear motion of the transmission nut 2243, thereby raising or lowering the entire movable seat 221 and its cutting cylinder 222 and cutting blade 2234. This means that the cutting interval 226 can be precisely adjusted according to the actual height of the sprue, ensuring that the cutting interval 226 is always aligned with the root of the sprue edge material 121, achieving a perfect cut.

[0039] Reference Figure 5 In some specific embodiments, a guide groove 225 is provided on one side of the interior of the isolation cavity 213, and a guide slider 2251 is provided on one side of the movable seat 221. The guide slider 2251 slides in cooperation with the adjacent guide groove 225.

[0040] Through the above technical solution, a guide slider 2251 that precisely matches the guide groove 225 is provided on one side of the movable seat 221. When the adjusting motor 2241 drives the movable seat 221 to rise and fall, the guide slider 2251 always slides in the adjacent guide groove 225. This sliding fit provides reliable guidance and support for the rising and falling movement of the movable seat 221, effectively offsetting the lateral force or torque generated during the cutting process, and ensuring the linearity and stability of the movement.

[0041] Reference Figures 1-4 In some specific embodiments, a sealing strip 216 is provided on one side of the isolation movable seat 212. The sealing strip 216 is elastic, so that when the two isolation movable seats 212 come close to each other, the two adjacent sealing strips 216 abut against each other.

[0042] With the above technical solution, when the isolation cylinder 211 pushes the two isolation movable seats 212 closer to each other until they close, the two adjacent sealing strips 216 will first come into contact and squeeze each other; since the sealing strips 216 themselves are elastic, they will undergo adaptive deformation under the squeezing action, thereby perfectly filling the micro gaps between the mating surfaces of the two movable seats 221, which can not only block the normal-sized sprue edge material 121, but also effectively seal the tiny plastic debris generated during cutting into the isolation cavity 213.

[0043] Reference Figure 1 In some specific embodiments, a rejection mechanism 300 is provided on one side of the conveyor frame 100. The rejection mechanism 300 includes a rejection seat 310 provided on one side of the conveyor frame 100. A rejection cylinder 320 is provided on the top of the rejection seat 310. A rejection block 330 is provided at one end of the rejection cylinder 320. The rejection block 330 is located near the top of the edge material recycling conveyor belt 110.

[0044] Through the above technical solution, after the sprue of the plastic can 120 is cut in the closed isolation cavity 213, the sprue edge material 121 falls directly to the edge material recycling conveyor belt 110. When these conveyed edge materials arrive at the end of the conveyor belt, the rejection cylinder 320 is activated. The rejection cylinder 320 pushes the rejection block 330, so that the rejection block 330 pushes the sprue edge material 121 out of the edge material recycling conveyor belt 110, thereby facilitating the unified processing of the sprue edge material 121.

[0045] Reference Figure 1 In some specific embodiments, a recycling box 340 is provided on the other side of the conveyor frame 100, and a recycling cavity 341 is provided on the top of the recycling box 340 for receiving the sprue edge material 121.

[0046] Through the above technical solution, the removal cylinder 320 pushes the removal block 330, so that the removal block 330 pushes the sprue edge material 121 out of the edge material recycling conveyor belt 110, and the sprue edge material 121 is directly put into the recycling cavity 341 of the recycling box 340, so as to facilitate the recycling of the sprue edge material 121.

[0047] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

Claims

1. A device for recycling edge material, comprising a conveyor frame, wherein the top of the conveyor frame is provided with an edge material recycling conveyor belt, characterized in that, The top of the conveyor frame is equipped with an isolation mechanism, which includes mounting frames on both sides of the conveyor frame. The top of the mounting frame is equipped with an isolation cylinder, and the piston rod end of the isolation cylinder is equipped with an isolation movable seat. The isolation movable seat is located above the edge material recycling conveyor belt, and the two isolation movable seats are spaced apart to form a closed gap. An isolation cavity is opened on one side of the isolation movable seat, so that the isolation cavities of the two isolation movable seats can communicate with each other. The bottom of the isolation movable seat is opened with a discharge port that communicates with the isolation cavity. The discharge port is located above the edge material recycling conveyor belt. A cutting part and a clamping part are provided on one side of the interior of the isolation cavity. The cutting part is located above the clamping part. The cutting part is used to cut the sprue edge material of the plastic can, and the clamping part is used to clamp the plastic can.

2. The waste material recycling device according to claim 1, characterized in that, The clamping part includes a clamping seat disposed on one side of the interior of the isolation cavity, and a clamping block is provided on one side of the clamping seat. The clamping block is elastic, and the clamping blocks of the two isolation cavities are separated to form a clamping interval.

3. The waste material recycling device according to claim 2, characterized in that, The clamping block is arc-shaped, and the concave surface of the clamping block faces the clamping interval.

4. The waste material recycling device according to claim 2, characterized in that, The cutting part includes a movable seat located inside one side of the isolation cavity. A cutting cylinder is provided on one side of the movable seat. A blade holder is provided at the piston rod end of the cutting cylinder. A cutting blade is provided at one end of the blade holder. The cutting blades of the two isolation cavities are separated to form a cutting interval. The cutting interval is located above the clamping interval.

5. The waste material recycling device according to claim 4, characterized in that, The blade holder has an installation cavity at one end, and one end of the cutting blade is inserted into the installation cavity. A locking hole is provided on one side of the blade holder, which communicates with the installation cavity. A locking bolt is threaded into the locking hole, and the locking bolt abuts against the cutting blade.

6. The waste material recycling device according to claim 4, characterized in that, A transmission cavity is provided on one side of the isolation cavity. A transmission screw is rotatably connected inside the transmission cavity. A transmission nut is sleeved on the outside of the transmission screw. The transmission nut is connected to the adjacent movable seat. An adjustment motor is provided inside the isolation cavity. The adjustment motor drives the transmission screw to rotate.

7. The waste material recycling device according to claim 6, characterized in that, A guide groove is provided on one side of the interior of the isolation cavity, and a guide slider is provided on one side of the movable seat. The guide slider slides in cooperation with the adjacent guide groove.

8. The waste material recycling device according to claim 1, characterized in that, A sealing strip is provided on one side of the isolation movable seat. The sealing strip is elastic, so that when two isolation movable seats are brought close to each other, the two adjacent sealing strips abut against each other.

9. The waste material recycling device according to claim 1, characterized in that, A rejection mechanism is provided on one side of the conveyor frame. The rejection mechanism includes a rejection seat located on one side of the conveyor frame. A rejection cylinder is provided on the top of the rejection seat. A rejection block is provided at one end of the rejection cylinder. The rejection block is located near the top of the edge material recycling conveyor belt.

10. A waste material recycling device according to claim 9, characterized in that, A recycling bin is provided on the other side of the conveyor frame. The top of the recycling bin has a recycling cavity for receiving sprue edge material.

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