A scrap metal recycling crusher

Abstract

The present invention relates to the technical field of scrap metal crushing, and specifically discloses a scrap metal recycling crusher, comprising: a feed hopper, the feed hopper being fixedly connected to the top of a shell, the discharge port of which being located above an opening of the shell, for entry of scrap metal to be crushed, a punching assembly being provided inside the feed hopper for flattening waste can-shaped scrap metal packaging containers, a power assembly being provided on the top of the feed hopper for providing power for the operation of the punching assembly, and a pushing assembly being provided inside the feed hopper. The present invention, through the cooperation of the punching assembly and the power assembly, first pierces the can-shaped scrap metal packaging container with a crushing blade when crushing the can-shaped scrap metal packaging container, and then flattens the pierced can-shaped scrap metal packaging container. The flattened can-shaped scrap metal packaging container enters the crusher and can be quickly crushed under the action of the crushing roller, thereby greatly improving the crushing efficiency of the crusher.

Description

Technical Field

[0001] The invention belongs to the technical field of scrap metal crushing, and in particular relates to a scrap metal recycling crusher. Background Art

[0002] Scrap metal refers to metal fragments and debris discarded by the metallurgical industry and metal processing industry, as well as metal objects scrapped during equipment upgrades. It also includes metal packaging containers and scrapped vehicles recycled from urban garbage. Scrap metal is also a resource, and countries around the world have specialized units engaged in the recycling and utilization of scrap metal businesses.

[0003] Among urban garbage, there are many metal packaging containers in the shape of cans. These metal packaging containers will be recycled and reused after use. The recycled can-shaped scrap metals are mainly used for smelting and converted into recycled metals, and some are used to produce machinery and equipment or parts, tools and civilian appliances. Can-shaped scrap metal packaging containers need to be crushed when recycled to facilitate subsequent processes.

[0004] Most of the scrap metal crushers in the prior art directly place can-shaped scrap metal packaging containers into the crusher. However, when a crusher consisting of only two sets of crushing rollers crushes can-shaped scrap metal packaging containers, the can-shaped scrap metal packaging containers are easily rotated between the two crushing rollers, and cannot be crushed quickly, resulting in low crushing efficiency. Therefore, we propose a scrap metal recycling crusher. Summary of the Invention

[0005] The purpose of the present invention is to provide a scrap metal recycling crusher to solve the problem in the prior art that can-shaped scrap metal packaging containers are easily rotated between two crushing rollers, cannot be crushed quickly, and have low crushing efficiency.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A scrap metal recycling crusher, comprising:

[0008] The outer side of the shell is provided with four supporting legs distributed in a rectangular shape, the inner side of the shell is provided with a crushing assembly for crushing scrap metal, the top of the shell is fixedly connected to a protective cover for protecting the shell opening, the top of the protective cover is provided with an air duct for extracting dust when the scrap metal is crushed, and the bottom of the shell is provided with a discharge pipe for discharging the crushed metal debris;

[0009] A feed hopper is fixedly connected to the top of the shell, and its discharge port is located above the shell opening for the entry of scrap metal that needs to be crushed. A punching assembly is provided inside the feed hopper for flattening waste can-shaped scrap metal packaging containers. A power assembly is provided on the top of the feed hopper for providing power for the operation of the punching assembly. A pusher assembly is provided inside the feed hopper for pushing the scrap metal flattened by the punching assembly into the crushing assembly in the shell for crushing;

[0010] The punching assembly includes a pressing plate, which is arranged inside the feed hopper, a contact plate is arranged below the pressing plate, crushing blades distributed at equal intervals are fixedly connected to the bottom of the pressing plate, springs distributed in a rectangular shape are fixedly connected to the bottom of the pressing plate, and rectangular rods distributed symmetrically are fixedly connected to the top of the pressing plate;

[0011] The pushing assembly includes a pushing plate, which is arranged inside the feed hopper. The rear side of the pushing plate is fixedly connected to a pushing rod, the rear end of the pushing rod is fixedly connected to a connecting block, and a blocking bar is provided at the bottom of the feed hopper.

[0012] Preferably: the top of the feed hopper is provided with symmetrically distributed rectangular holes, the top ends of the rectangular rods pass through the rectangular holes and extend outside the feed hopper, the top of the feed hopper is fixedly connected with a U-shaped slide rail, and the rectangular rods are slidably connected to the inner side of the U-shaped slide rail.

[0013] Preferably: the top of the contact plate is fixedly connected to a vertical rod, the top of the vertical rod passes through the pressure plate and is slidably connected to the pressure plate, the outer side of the vertical rod is fixedly connected to a limit ring that limits the moving range of the contact plate, and the top of the contact plate is provided with knife grooves distributed at equal intervals.

[0014] Preferably: the power assembly includes a mounting plate, the mounting plate is fixedly connected to the top of the feed hopper, the rear side of the mounting plate is movably connected to a transmission rod through a bearing, the rear end of the transmission rod is fixedly connected to a cam arranged in a fan shape, and a rotatable upper roller and lower roller are arranged on the outside of the rectangular rod.

[0015] Preferably, the outer sides of the upper roller and the lower roller are in contact with the outer side of the same cam, and the front end of the transmission rod passes through the mounting plate and extends outside the mounting plate.

[0016] Preferably, a driving motor is fixedly connected to the outer side of the mounting plate, the driving motor is fixedly connected to a worm via an output shaft, a worm wheel is fixedly connected to the outer side of the transmission rod, and the outer side of the worm wheel is meshed with the outer side of the worm.

[0017] Preferably, a stepper motor is provided on the outer side of the housing, the stepper motor is fixedly connected to a disc via an output shaft, and a connecting rod is fixedly connected to the top of the disc.

[0018] Preferably, the bottom of the connecting block is fixedly connected to a fixing rod, the outer side of the fixing rod is movably connected to a connecting rod via a bearing, and the connecting rod is movably connected to the outer side of the connecting rod via a bearing.

[0019] Preferably, the rear end of the push rod passes through the rear side of the feed hopper and is slidably connected to the rear side of the feed hopper, and the rear side of the baffle is arranged in an inclined surface to facilitate the push-out of the flattened scrap metal.

[0020] Preferably, the crushing assembly includes crushing rollers, which are arranged in two groups on the inner side of the shell. A servo motor is fixedly connected to the outer side of the shell. The servo motor is equipped with an output shaft, and the output shaft of the servo motor is fixedly connected to the left end of one of the crushing rollers through a coupling.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. The present invention cooperates with the punching assembly and the power assembly. When crushing can-shaped scrap metal packaging containers, the contact plate can flatten the can-shaped scrap metal packaging containers before crushing. The flattened can-shaped scrap metal packaging containers enter the crusher and can be quickly crushed under the action of the crushing roller, greatly improving the crushing efficiency of the crusher.

[0023] 2. The present invention cooperates with the punching assembly and the power assembly. When flattening the can-shaped scrap metal packaging container, the can-shaped scrap metal packaging container can be first pierced by the crushing blade, and then the pierced can-shaped scrap metal packaging container is flattened, thereby avoiding the displacement of the can-shaped scrap metal packaging container during flattening, improving the flattening efficiency and effect, and further improving the crushing efficiency of the crusher.

[0024] 3. The present invention arranges a pushing assembly so that the can-shaped scrap metal packaging container stays under the contact plate when it is flattened, which facilitates the flattening of the can-shaped scrap metal packaging container. After the can-shaped scrap metal packaging container is flattened, it is pushed out of the feed hopper through the arranged reciprocating structure and pushing plate, so that it enters the crushing roller for crushing, ensuring that each can-shaped scrap metal packaging container is flattened, which facilitates subsequent crushing. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is one of the three-dimensional diagrams of the present invention;

[0026] Figure 2 This is the second stereogram of the present invention;

[0027] Figure 3 A schematic diagram of the interior of the housing of the present invention;

[0028] Figure 4 It is a partial structural diagram of the feed hopper of the present invention;

[0029] Figure 5 This is a schematic diagram of the connection between the power assembly and the stamping assembly of the present invention;

[0030] Figure 6 This is a partial exploded schematic diagram of the mounting plate of the present invention;

[0031] Figure 7 It is a partial structural schematic diagram of the stamping assembly of the present invention;

[0032] Figure 8 This is a schematic diagram of the explosion of the top portion of the contact plate of the present invention;

[0033] Figure 9 It is a partial structural diagram of the pusher assembly of the present invention;

[0034] Figure 10 It is a partial cross-sectional schematic diagram of the feed hopper of the present invention.

[0035] In the figure: 1. Housing; 2. Support legs; 3. Discharge pipe; 4. Crushing assembly; 41. Crushing roller; 42. Servo motor; 5. Protective cover; 51. Air duct; 6. Feed hopper;

[0036] 61. Power assembly; 611. Drive motor; 612. Cam; 613. Transmission rod; 614. Worm; 615. Worm gear; 616. Mounting plate; 617. Lower roller; 618. Upper roller;

[0037] 62. Stamping assembly; 621. Press plate; 622. Contact plate; 623. Crushing blade; 6231. Blade groove; 624. Rectangular rod; 625. U-shaped slide rail; 626. Spring; 627. Rectangular hole; 628. Vertical rod; 6281. Limiting ring;

[0038] 63. Pushing assembly; 631. Connecting rod; 632. Stepping motor; 633. Pushing rod; 634. Fixing rod; 635. Connecting rod; 636. Disc; 637. Pushing plate; 638. Connecting block; 639. Stop bar. DETAILED DESCRIPTION

[0039] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0040] Reference Figures 1-10 As shown, the present invention provides a scrap metal recycling crusher, comprising:

[0041] The outer shell 1 is provided with four supporting legs 2 arranged in a rectangular shape on the outside of the outer shell 1, and a crushing assembly 4 for crushing scrap metal is provided on the inside of the outer shell 1. A protective cover 5 for protecting the opening of the outer shell 1 is fixedly connected to the top of the outer shell 1. The top of the protective cover 5 is provided with an air duct 51 for extracting dust during the crushing of the scrap metal. The bottom of the outer shell 1 is provided with a discharge pipe 3 for discharging the crushed metal debris;

[0042] Specifically, the air duct 51 can be connected to a negative pressure fan to absorb the dust generated when the scrap metal is crushed, to prevent excessive discharge into the workshop and to prevent the dust from being inhaled into the body by the workers, thereby ensuring the safety of the crusher when in use.

[0043] The feed hopper 6 is fixedly connected to the top of the shell 1, and its discharge port is located above the opening of the shell 1, which is used for the entry of scrap metal that needs to be crushed. A stamping assembly 62 is provided inside the feed hopper 6, which is used to flatten waste can-shaped scrap metal packaging containers. A power assembly 61 is provided on the top of the feed hopper 6 to provide power for the operation of the stamping assembly 62. A pushing assembly 63 is provided inside the feed hopper 6 to push the scrap metal flattened by the stamping assembly 62 into the crushing assembly 4 in the shell 1 for crushing.

[0044] In a further embodiment, referring to Figure 4-Figure 8The punching assembly 62 includes a pressing plate 621, which is arranged inside the feed hopper 6, and a contact plate 622 is arranged below the pressing plate 621. The bottom of the pressing plate 621 is fixedly connected with crushing blades 623 distributed at equal intervals. The bottom of the crushing blades 623 is conical, which is convenient for insertion into the can-shaped scrap metal packaging container and convenient for the subsequent flattening of the contact plate 622. The bottom of the pressing plate 621 is fixedly connected with a spring 626 distributed in a rectangular shape. The spring 626 can make the contact plate 622 pop up downward when the pressing plate 621 moves upward, so that the crushing blade 623 is removed from the can-shaped scrap metal packaging container and stored in the knife groove 6231 for subsequent use. The top of the pressing plate 621 is fixedly connected with symmetrically distributed rectangular rods 624, and the top of the feed hopper 6 is provided with symmetrically distributed rectangular holes 627. The top of the rectangular rod 624 passes through the rectangular hole 627 and extends to the outside of the feed hopper 6 The top of the feed hopper 6 is fixedly connected to a U-shaped slide rail 625. With the cooperation of the U-shaped slide rail 625 and the rectangular hole 627, the moving trajectory of the rectangular rod 624 is limited to ensure that it can only move in the up and down directions. The rectangular rod 624 is slidably connected to the inner side of the U-shaped slide rail 625. The top of the contact plate 622 is fixedly connected to a vertical rod 628. The top of the vertical rod 628 passes through the pressure plate 621 and is slidably connected to the pressure plate 621. The outer side of the vertical rod 628 is fixedly connected to a limiting ring 6281 for limiting the moving range of the contact plate 622. The limiting ring 6281 limits the distance between the contact plate 622 and the pressure plate 621, ensuring that the contact plate 622 has enough force to flatten the can-shaped packaging container. The top of the contact plate 622 is provided with knife grooves 6231 distributed at equal intervals. The knife grooves 6231 are set in a through shape to facilitate the penetration of the crushing blade 623 and pierce the can-shaped metal packaging container.

[0045] There are four springs 626 and four vertical rods 628, and the springs 626 are sleeved on the outside of the corresponding vertical rods 628;

[0046] A sliding hole is provided at the bottom of the pressing plate 621, and the vertical rod 628 is slidably connected to the inner side of the sliding hole, so that the distance between the contact plate 622 and the pressing plate 621 is reduced, and the crushing blade 623 is moved out to pierce the can-shaped scrap metal packaging container, making it easier to flatten it.

[0047] In this embodiment, with the cooperation of the power component 61, the rectangular rod 624 is made to reciprocate in the up and down directions, and the reciprocating motion of the rectangular rod 624 in the up and down directions drives the pressure plate 621 to move downward, piercing and flattening the can-shaped scrap metal packaging container below. By piercing and flattening the can-shaped scrap metal packaging container, it is convenient for the subsequent crushing roller 41 to crush it, thereby improving the working efficiency of the crusher.

[0048] In a further embodiment, referring to Figure 5-Figure 7The power assembly 61 includes a mounting plate 616, which is fixedly connected to the top of the feed hopper 6. The rear side of the mounting plate 616 is movably connected to a transmission rod 613 through a bearing. The rear end of the transmission rod 613 is fixedly connected to a cam 612 arranged in a fan shape. The rotation of the transmission rod 613 can drive the cam 612 to rotate. A rotatable upper roller 618 and a lower roller 617 are provided on the outside of the rectangular rod 624. The outer sides of the upper roller 618 and the lower roller 617 are in contact with the outer side of the same cam 612. The front end of the transmission rod 613 passes through the mounting plate 616 and extends to the outside of the mounting plate 616. The outside of the mounting plate 616 is fixedly connected to a drive motor 611. The drive motor 611 is fixedly connected to a worm 614 through an output shaft. The outside of the transmission rod 613 is fixedly connected to a worm gear 615. The outer side of the worm gear 615 is meshed with the outer side of the worm gear 614.

[0049] Specifically, the fan-shaped cam 612 has a large arc edge and a small arc edge. In the initial state, the large arc edge contacts the upper roller 618, and the small arc edge contacts the lower roller 617. At this time, the rectangular rod 624 and the pressure plate 621 below it are in the highest position. As the cam 612 rotates, when the large arc edge of the cam 612 contacts the lower roller 617, the rectangular rod 624 and the pressure plate 621 move downward to flatten the can-shaped scrap metal packaging container.

[0050] Furthermore, the upper roller 618 and the lower roller 617 are both made of a shaft and a roller, which are fixed to the front side of the rectangular rod through the shaft, and the roller is movably connected to the outside of the shaft so that it can rotate on the outside of the shaft.

[0051] In this embodiment, the driving motor 611 drives the two worm gears 615 to rotate simultaneously through the output shaft and the worm 614, and the worm gear 615 drives the transmission rod 613 to rotate, thereby driving the two cams 612 to rotate synchronously. When its large arc edge contacts the upper roller 618, the rectangular rod 624 is pushed upward under the action of the upper roller 618. When it continues to rotate and the large arc edge contacts the lower roller 617, it drives the rectangular rod 624 to move downward. The continuous rotation of the cam 612 drives the rectangular rod 624 to reciprocate in the up and down directions, providing stable power for the operation of the stamping assembly 62, making it convenient for it to pierce and flatten the can-shaped scrap metal packaging container in the feed hopper 6.

[0052] In a further embodiment, referring to Figure 4 and Figure 9The pushing assembly 63 includes a pushing plate 637, which is arranged inside the feed hopper 6. The rear side of the pushing plate 637 is fixedly connected to a pushing rod 633. The rear end of the pushing rod 633 is fixedly connected to a connecting block 638. The movement of the connecting block 638 can drive the pushing plate 637 to move through the pushing rod 633, so as to push the material in the feed hopper 6 out of the feed hopper 6. A blocking bar 639 is provided at the bottom of the feed hopper 6. The blocking bar 639 is used to limit the material rolling into the feed hopper 6. The rear side of the blocking bar 639 is provided with an inclined surface for In order to push out the flattened scrap metal, a stepper motor 632 is provided on the outside of the shell 1. The stepper motor 632 is fixedly connected to the disc 636 through the output shaft. The top of the disc 636 is fixedly connected to the connecting rod 635. The bottom of the connecting block 638 is fixedly connected to the fixed rod 634. The outside of the fixed rod 634 is movably connected to the connecting rod 631 through a bearing. The connecting rod 631 is movably connected to the outside of the connecting rod 635 through a bearing. The rear end of the push rod 633 passes through the rear side of the feed hopper 6 and is slidably connected to the rear side of the feed hopper 6.

[0053] Specifically, the disc 636, the connecting rod 635, the connecting rod 631 and the fixed rod 634 cooperate with each other to form a reciprocating motion structure. Driven by the stepper motor 632, the connecting block 638 can be driven to reciprocate in the front and back directions, and cooperate with the push rod 633 and the push plate 637 to push out the flattened scrap metal packaging container for crushing.

[0054] In this embodiment, when the pressure plate 621 and the contact plate 622 pierce and flatten the can-shaped scrap metal packaging container and then move upward, the stepper motor 632 drives the disc 636 to rotate through the output shaft, and drives the connecting block 638 to reciprocate in the front and rear directions under the action of the connecting rod 635, the connecting rod 631 and the fixed rod 634, so that the push plate 637 reciprocates in the left and right directions under the action of the push rod 633, and the flattened can-shaped scrap metal packaging container is pushed out of the feed hopper 6, thereby ensuring the flattening efficiency of the can-shaped scrap metal packaging container, avoiding the phenomenon of material blockage, and improving the working efficiency of the crusher.

[0055] In a further embodiment, referring to Figure 1-Figure 3 The crushing assembly 4 includes crushing rollers 41, which are arranged in two groups on the inner side of the shell 1. The left and right ends of the crushing rollers 41 are movably connected to the inner side of the shell 1 through bearings. A servo motor 42 is fixedly connected to the outer side of the shell 1. The servo motor 42 is equipped with an output shaft. The output shaft of the servo motor 42 is fixedly connected to the left end of one of the crushing rollers 41 through a coupling.

[0056] The outer side of the crushing roller 41 is provided with crushing teeth densely distributed at equal intervals, which is convenient for crushing the flattened can-shaped metal packaging containers.

[0057] Specifically, one end of the crushing roller 41 away from the servo motor 42 passes through the right side of the housing 1, and gears are fixedly connected to the outside of the two crushing rollers 41. The opposite surfaces of the two gears are engaged with each other. When one crushing roller 41 rotates, the other crushing roller 41 follows and rotates in the opposite direction.

[0058] In this embodiment, the servo motor 42 drives one of the crushing rollers 41 to rotate through the output shaft, and the two crushing rollers 41 rotate in opposite directions under the action of the gears, thereby crushing the can-shaped scrap metal packaging container that has been flattened after entering the shell 1. By crushing the scrap metal, its subsequent recycling is facilitated.

[0059] It should be noted that the installation and circuit connection of the drive motor 611, the servo motor 42 and the stepper motor 632 are all related to the prior art and are well known in the art, and will not be described in detail here.

[0060] The working principle of the present invention is as follows:

[0061] The can-shaped metal packaging containers that need to be crushed are put into the feed port of the feed hopper 6. The discarded can-shaped metal packaging containers roll downward under the action of the inclined surface of the inner wall of the feed hopper 6 and stop under the contact plate 622 under the action of the stop bar 639.

[0062] The driving motor 611 drives the worm 614 to rotate through the output shaft. The rotation of the worm 614 drives the worm gear 615 to rotate. The rotation of the worm gear 615 drives the cam 612 to rotate through the transmission rod 613. The rotation of the cam 612 causes the rectangular rod 624 in the U-shaped slide rail 625 to reciprocate in the up and down directions under the action of the upper roller 618 and the lower roller 617. When the rectangular rod 624 moves downward, it pushes the pressing plate 621 and the contact plate 622 to move downward. When the contact plate 622 contacts the discarded can-shaped metal packaging container, the contact plate 622 stops moving downward under the action of the spring 626, while the pressing plate 621 continues to move downward. The pressing plate 621 continues to move downward, and the crushing blade 623 moves out of the knife groove 6231 to pierce the discarded can-shaped metal packaging container.

[0063] When the limiting ring 6281 on the outside of the vertical rod 628 contacts the bottom of the pressing plate 621, the pressing plate 621 pushes the contact plate 622 to continue moving downward under the action of the vertical rod 628 and the limiting ring 6281, thereby flattening the discarded can-shaped metal packaging container after the hole is punctured.

[0064] When the cam 612 continues to rotate, driving the pressure plate 621 to move upward, the spring 626 causes the crushing blade 623 to be retracted into the blade groove 6231 until the pressure plate 621 is reset.

[0065] At this time, the stepper motor 632 is started, and the stepper motor 632 drives the disc 636 to rotate through the output shaft. The rotation of the disc 636 drives the connecting rod 635 to rotate, and under the action of the connecting rod 635, the connecting rod 631 and the fixed rod 634, the connecting block 638 is driven to reciprocate in the front and rear directions. When the connecting block 638 moves forward, the push plate 637 is pushed to move by the push rod 633, and the discarded can-shaped metal packaging container flattened by the stamping assembly 62 is pushed out of the feed hopper 6 and enters between the two crushing rollers 41. It is crushed when the crushing rollers 41 rotate, and the crushed metal debris is discharged through the discharge pipe 3, completing the crushing of the can-shaped scrap metal packaging container.

[0066] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A scrap metal recycling crusher, characterized in that: include: A housing (1), wherein four supporting legs (2) arranged in a rectangular shape are provided on the outside of the housing (1), a crushing assembly (4) for crushing scrap metal is provided on the inside of the housing (1), a protective cover (5) for protecting the opening of the housing (1) is fixedly connected to the top of the housing (1), an air duct (51) for extracting dust when the scrap metal is crushed is provided on the top of the protective cover (5), and a discharge pipe (3) for discharging crushed metal scraps is provided at the bottom of the housing (1); A feed hopper (6) is fixedly connected to the top of the housing (1), and its discharge port is located above the opening of the housing (1) for the entry of scrap metal to be crushed. A punching assembly (62) is provided inside the feed hopper (6) for flattening waste can-shaped scrap metal packaging containers. A power assembly (61) is provided on the top of the feed hopper (6) for providing power for the operation of the punching assembly (62). A pushing assembly (63) is provided inside the feed hopper (6) for pushing the scrap metal flattened by the punching assembly (62) into the crushing assembly (4) in the housing (1) for crushing. The punching assembly (62) includes a pressing plate (621), the pressing plate (621) is arranged inside the feed hopper (6), a contact plate (622) is arranged below the pressing plate (621), the bottom of the pressing plate (621) is fixedly connected to crushing blades (623) distributed at equal intervals, the bottom of the pressing plate (621) is fixedly connected to springs (626) distributed in a rectangular shape, and the top of the pressing plate (621) is fixedly connected to symmetrically distributed rectangular rods (624); The pushing assembly (63) includes a pushing plate (637), which is arranged inside the feed hopper (6), a pushing rod (633) is fixedly connected to the rear side of the pushing plate (637), a connecting block (638) is fixedly connected to the rear end of the pushing rod (633), and a blocking bar (639) is provided at the bottom of the feed hopper (6).

2. The scrap metal recycling crusher according to claim 1, characterized in that: The top of the feed hopper (6) is provided with symmetrically distributed rectangular holes (627), the top of the rectangular rod (624) passes through the rectangular holes (627) and extends to the outside of the feed hopper (6), the top of the feed hopper (6) is fixedly connected to a U-shaped slide rail (625), and the rectangular rod (624) is slidably connected to the inner side of the U-shaped slide rail (625).

3. The scrap metal recycling crusher according to claim 1, characterized in that: The top of the contact plate (622) is fixedly connected to a vertical rod (628), the top of the vertical rod (628) passes through the pressure plate (621) and is slidably connected to the pressure plate (621), the outer side of the vertical rod (628) is fixedly connected to a limit ring (6281) for limiting the moving range of the contact plate (622), and the top of the contact plate (622) is provided with knife grooves (6231) distributed at equal intervals.

4. The scrap metal recycling crusher according to claim 1, characterized in that: The power assembly (61) includes a mounting plate (616), the mounting plate (616) is fixedly connected to the top of the feed hopper (6), the rear side of the mounting plate (616) is movably connected to a transmission rod (613) through a bearing, the rear end of the transmission rod (613) is fixedly connected to a cam (612) arranged in a fan shape, and the outer side of the rectangular rod (624) is provided with a rotatable upper roller (618) and a lower roller (617).

5. The scrap metal recycling crusher according to claim 4, characterized in that: The outer sides of the upper roller (618) and the lower roller (617) are in contact with the outer side of the same cam (612), and the front end of the transmission rod (613) passes through the mounting plate (616) and extends outside the mounting plate (616).

6. The scrap metal recycling crusher according to claim 4, characterized in that: The outer side of the mounting plate (616) is fixedly connected to a driving motor (611), the driving motor (611) is fixedly connected to a worm (614) via an output shaft, the outer side of the transmission rod (613) is fixedly connected to a worm wheel (615), and the outer side of the worm wheel (615) is meshed with the outer side of the worm wheel (614).

7. The scrap metal recycling crusher according to claim 1, characterized in that: A stepper motor (632) is provided outside the housing (1); the stepper motor (632) is fixedly connected to a disc (636) via an output shaft; and a connecting rod (635) is fixedly connected to the top of the disc (636).

8. The scrap metal recycling crusher according to claim 7, characterized in that: The bottom of the connecting block (638) is fixedly connected to a fixing rod (634), the outer side of the fixing rod (634) is movably connected to a connecting rod (631) via a bearing, and the connecting rod (631) is movably connected to the outer side of the connecting rod (635) via a bearing.

9. The scrap metal recycling crusher according to claim 7, characterized in that: The rear end of the push rod (633) passes through the rear side of the feed hopper (6) and is slidably connected to the rear side of the feed hopper (6). The rear side of the blocking bar (639) is arranged in an inclined surface to facilitate the pushing out of the scrap metal after flattening.

10. The scrap metal recycling crusher according to claim 1, characterized in that: The crushing assembly (4) comprises crushing rollers (41), the crushing rollers (41) being arranged in two groups on the inner side of the housing (1), the outer side of the housing (1) being fixedly connected to a servo motor (42), the servo motor (42) being provided with an output shaft, the output shaft of the servo motor (42) being fixedly connected to the left end of one of the crushing rollers (41) via a coupling.

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