Extrusion device for metal scrap treatment

Abstract

The utility model discloses an extrusion device for metal scrap treatment, which relates to the waste treatment technology, and adopts the technical scheme that the extrusion device comprises a working table, a conveying component, a compression roller and an extrusion plate, a hydraulic cylinder is arranged on the working table, protective frames are arranged on two sides of the compression roller, an anti-extrusion guide plate is arranged on the working table, and two ends of the extrusion plate are always propped against the anti-extrusion guide plate. When the hydraulic cylinder pushes the extrusion plate to move the metal waste towards the compression roller, the metal waste is not prone to entering a gap between the workbench and the protective frame due to the existence of the extrusion-preventing guide plate, so that the metal waste can be well pushed and extruded to the compression roller by the extrusion plate, and then the metal waste is flattened by the compression roller. The possibility that some metal scraps with small shapes directly penetrate through the gap between the workbench and the protective frame is avoided, and the treatment efficiency of the compression roller on the metal scraps can be effectively guaranteed.

Description

Technical Field

[0001] This utility model relates to waste treatment technology, and more specifically, to an extrusion device for treating metal waste. Background Technology

[0002] Metal scrap processing involves extrusion equipment, which is specifically designed to flatten metal scrap. This effectively reduces the space occupied by hollow metal scrap with a shape, facilitating the transportation, storage, and processing of metal scrap. It is a relatively important piece of equipment in the metal scrap recycling and processing process.

[0003] Chinese Patent Publication No. CN220995546U discloses a briquetting device, the key technical features of which are: a workbench, a conveying assembly disposed on the upper side of the workbench for conveying metal scrap, a pressure roller rotatably connected to the input end of the workbench, an extrusion plate slidably connected to the side of the workbench near the input end, the extrusion plate reciprocating towards the side near the pressure roller, the extrusion plate having a trapezoidal cross-section, the extrusion plate gradually increasing in thickness towards the side near the pressure roller as its height increases, the maximum height of the extrusion plate being less than the radius of the pressure roller, and a driving assembly for driving the reciprocating motion of the extrusion plate on the workbench.

[0004] While the above solution solves the problem of metal scrap easily slipping in the forward direction, during the process of the extrusion plate pushing the metal scrap towards the pressure roller, because the length of the extrusion plate is greater than the length of the pressure roller and the maximum radius of the guard is greater than the sum of the radius of the pressure roller and the maximum thickness of the protrusion, there will be a certain gap between the worktable and the guard. Some metal scrap with small shapes will pass directly through these gaps, causing these metal scrap to be unable to be crushed by the pressure roller.

[0005] Therefore, a new solution is needed to address this problem. Utility Model Content

[0006] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an extrusion device for metal waste processing.

[0007] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a metal scrap extrusion device, including a worktable, a conveying assembly, a pressure roller and an extrusion plate, wherein the worktable is provided with a hydraulic cylinder for pushing the metal scrap toward the pressure roller by the extrusion plate, the pressure roller is provided with guards on both sides for contacting the extrusion plate, the worktable is provided with anti-extrusion guide plates located on both sides of the conveying assembly, the minimum distance between the two anti-extrusion guide plates is equal to the length of the pressure roller, and the two ends of the extrusion plate are always in contact with the anti-extrusion guide plates.

[0008] The present invention is further configured such that: the anti-extrusion guide plate includes an inclined section and a straight section disposed near the pressure roller, and the distance between the two inclined sections near the end of the hydraulic cylinder is equal to the width of the worktable.

[0009] The present invention is further configured such that: the extrusion plate includes a fixed plate and two telescopic plates slidably connected to both ends of the fixed plate, and the fixed plate is provided with a compression spring that provides the telescopic plates with a tendency to move away from the fixed plate.

[0010] The present invention is further configured such that: both the inclined section and the straight section are provided with interconnected grooves, and the end of the telescopic plate facing away from the compression spring is provided with a protrusion for embedding in the groove.

[0011] The present invention is further configured such that: the fixing plate includes a stop block for sliding on the upper wall of the straight section, the stop block being used to abut against the guard frame.

[0012] The present invention is further configured such that the connection between the straight segment and the inclined segment adopts a circular arc transition.

[0013] The present invention is further configured such that: a plurality of graphite blocks coated with lubricating oil are provided on the side wall of the groove.

[0014] In summary, the present invention has the following beneficial effects: When using the extrusion device for metal waste processing, the metal waste is first placed on the conveying assembly through the material drop space. Then, the hydraulic cylinder is activated to push the extrusion plate toward the pressure roller. The pressure roller contacts the metal waste and generates a force that moves the metal waste away from the pressure roller. This force will cause the metal waste that is not in contact with the pressure roller to move away from the conveying assembly. The anti-extrusion guide plate creates an obstacle above the conveying assembly, thus preventing this part of the metal waste from being extruded from the conveying assembly. Then, this part of the metal waste can be flattened by the pressure roller under the combined action of the conveying assembly and the anti-extrusion guide plate. Attached Figure Description

[0015] Figure 1 This is a cross-sectional view of the present invention;

[0016] Figure 2 for Figure 1 Enlarged diagram of section A in the middle;

[0017] Figure 3 This is a partial sectional view of the present invention.

[0018] In the diagram: 1. Workbench; 2. Conveying assembly; 3. Pressure roller; 4. Hydraulic cylinder; 5. Guard frame; 6. Inclined section; 7. Straight section; 8. Fixed plate; 9. Telescopic plate; 10. Compression spring; 11. Groove; 12. Raised bar; 13. Stop block; 14. Graphite block. Detailed Implementation

[0019] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0020] Extrusion devices for metal scrap processing, such as Figure 1 As shown, the assembly includes a worktable 1, a conveying component 2, a pressure roller 3, and an extrusion plate. The worktable 1 is equipped with a hydraulic cylinder 4 for pushing the extrusion plate toward the pressure roller 3. The pressure roller 3 has guards 5 on both sides for contacting the extrusion plate. The worktable 1 is equipped with anti-extrusion guide plates located on both sides of the conveying component 2. The minimum distance between the two anti-extrusion guide plates is equal to the length of the pressure roller 3. The two ends of the extrusion plate are always in contact with the anti-extrusion guide plates. When the hydraulic cylinder 4 pushes the extrusion plate to move the metal waste toward the pressure roller 3, the presence of the anti-extrusion guide plates makes it difficult for the metal waste to enter the gap between the worktable 1 and the guards 5. This allows the metal waste to be pushed well by the extrusion plate to the pressure roller 3, and then flattened by the pressure roller 3. This avoids the possibility of some small metal waste directly passing through the gap between the worktable 1 and the guards 5, and can effectively ensure the processing efficiency of the pressure roller 3 for metal waste.

[0021] like Figures 1 to 3As shown, the anti-extrusion guide plate includes an inclined section 6 and a straight section 7 located near the pressure roller 3. The distance between the two inclined sections 6 near the hydraulic cylinder 4 is equal to the width of the worktable 1. The two inclined sections 6 are symmetrically arranged so that the position of the metal scrap poured onto the conveying assembly 2 does not overlap with the inclined section 6. This arrangement makes it difficult for the metal scrap to fall into the gap between the straight section 7 or the inclined section 6 and the worktable 1 when it is poured onto the conveying assembly 2. When the extrusion plate and the conveying assembly 2 move the metal scrap towards the pressure roller 3, the metal scrap is prevented from directly passing through the gap between the worktable 1 and the guard frame 5 under the guidance of the straight section 7 and the inclined section 6. Thus, most of the metal scrap on the conveying assembly 2 can be squeezed and processed by the pressure roller 3. The extrusion plate includes a solid... The fixed plate 8 and two telescopic plates 9 are slidably connected to both ends of the fixed plate 8. The fixed plate 8 is provided with a compression spring 10 that provides a tendency for the telescopic plates 9 to move away from the fixed plate 8. During the process of the extrusion plate moving towards the pressure roller 3, the telescopic plates 9 abut against the inclined section 6 and overcome the force of the compression spring 10 under the abutment force of the inclined section 6 and retract towards the fixed plate 8. This causes the length of the extrusion plate to shorten as the distance between the two inclined sections 6 decreases, so that it can eventually slide into the straight section 7. Since the compression spring 10 provides a reaction force to the telescopic plates 9, the telescopic plates 9 will always abut against the inclined section 6 or the straight section 7, so that the extrusion plate can better cooperate with the conveying assembly 2 to push the metal scrap to the pressure roller 3. The inclined section 6 and the straight section 7 are both provided with interconnected grooves. 11. The end of the telescopic plate 9 facing away from the compression spring 10 is provided with a protrusion 12 for embedding in the groove 11. The inclined section 6 and the straight section 7 are integrally formed. When the hydraulic cylinder 4 pushes the fixed plate 8 and the telescopic plate 9 to move together along the inclined section 6 or the straight section 7, the protrusion 12 embedded in the groove 11 can play a good limiting role for the telescopic plate 9 in the vertical direction, thereby preventing the end of the telescopic plate 9 that is in contact with the inclined section 6 from disengaging. The fixed plate 8 includes a stop block 13 for sliding on the upper wall of the straight section 7. The stop block 13 is used to abut against the guard frame 5. When the stop block 13 abuts against the guard frame 5, the fixed plate 8 cannot continue to approach the pressure roller 3, which can prevent the fixed plate 8 from extending too far and causing it to collide with the pressure roller 3. The straight section 7 and the inclined section 6 are integrally formed. The connection of section 6 adopts an arc transition. This setting makes the process of the telescopic plate 9 sliding from the inclined section 6 to the straight section 7 more gradual, which can reduce the load on the hydraulic cylinder 4 to a certain extent. Several graphite blocks 14 coated with lubricating oil are provided on the side wall of the groove 11. The naturally formed pores in the graphite blocks 14 can better retain the lubricating oil. When the convex strip 12 slides on the side wall of the groove 11, it will squeeze the graphite blocks 14, causing the lubricating oil in the graphite blocks 14 to be squeezed out. This allows the lubricating oil to fill the side wall of the convex strip 12 and the groove 11. By reducing the dynamic friction coefficient between the convex strip 12 and the side wall of the groove 11, the friction between the convex strip 12 and the side wall of the groove 11 is reduced, which can also reduce the load on the hydraulic cylinder 4 caused by the sliding of the telescopic plate 9, and ensure the stability of the operation of the hydraulic cylinder 4.

[0022] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A metal scrap extrusion device, comprising a worktable (1), a conveying assembly (2), a pressure roller (3), and an extrusion plate, wherein the worktable (1) is provided with a hydraulic cylinder (4) for pushing the metal scrap toward the pressure roller (3) by the extrusion plate, and the pressure roller (3) is provided with guards (5) on both sides for abutting against the extrusion plate, characterized in that: The workbench (1) is provided with anti-extrusion guide plates on both sides of the conveying assembly (2), the minimum distance between the two anti-extrusion guide plates is equal to the length of the compression roller (3), and the two ends of the extrusion plate are always in contact with the anti-extrusion guide plates.

2. The metal scrap processing extrusion device according to claim 1, characterized by: The anti-extrusion guide plate comprises an inclined section (6) and a straight section (7) arranged close to the compression roller (3), and the distance between the two inclined sections (6) close to one end of the hydraulic cylinder (4) is equal to the width of the workbench (1).

3. The metal scrap processing extrusion device according to claim 2, characterized by: The extrusion plate comprises a fixed plate (8) and two telescopic plates (9) slidingly connected at both ends of the fixed plate (8), and the fixed plate (8) is provided with compression springs (10) providing a moving trend away from the fixed plate (8) for the telescopic plates (9).

4. The metal scrap processing extrusion device according to claim 3, characterized by: The inclined section (6) and the straight section (7) are both provided with recesses (11) in communication with each other, and one end of the telescopic plate (9) away from the compression spring (10) is provided with a protruding strip (12) embedded in the recess (11).

5. The metal scrap processing extrusion device according to claim 3, characterized by: The fixed plate (8) comprises a stop block (13) sliding on the wall of the straight section (7), and the stop block (13) is used to contact the guard frame (5).

6. The metal scrap processing extrusion device according to claim 2, characterized by: The connection between the straight section (7) and the inclined section (6) adopts a circular arc transition.

7. The metal scrap processing extrusion device according to claim 4, characterized by: The side wall of the recess (11) is provided with a plurality of graphite blocks (14) coated with lubricating oil.

Images