A metal recovery pre-treatment apparatus

Abstract

The application discloses a metal recycling pretreatment equipment, and relates to the technical field of metal recycling, which comprises a rack, a first clamping and rotating device and a second clamping and rotating device, the first clamping and rotating device and the second clamping and rotating device are respectively used for clamping a body part and a head part of a metal can, and respectively drive the body and the head to rotate, a cutting device is arranged on the rack, the cutting device is used for cutting a connecting part between the body and the head, a swing driving device is used for driving the second clamping and rotating device to swing, so that the head is away from the body, a front and back driving device and a cleaning device, the front and back driving device is used for driving the cleaning device to sequentially approach the second clamping and rotating device and the first clamping and rotating device, so that the cleaning device can remove dirt on the inner wall of the head and dirt on the inner wall of the body. The metal recycling pretreatment equipment has compact structure, shortens the time interval between the cutting step and the dirt removing step, and improves the recycling efficiency of the metal can.

Description

Technical Field

[0001] This invention relates to the field of metal recycling technology, and in particular to a metal recycling pretreatment device. Background Technology

[0002] Metal cans are containers or cans made of metal materials. These cans are used to package, store, or transport various items, such as food and chemicals. The materials used to make metal cans can include metals such as iron, aluminum, and tin. Metals are finite natural resources, and their extraction has a certain impact on the environment. In order to protect the natural environment and delay the depletion of natural resources to the greatest extent possible, it is essential to recycle old metal cans.

[0003] Metal cans typically consist of an end cap and a body. In existing technologies, metal cans require pretreatment before recycling, which usually includes cutting and cleaning steps. Operators first transport the metal can to a cutting device to separate the end cap and body; then, they transport both the end cap and body to a cleaning device to remove dirt, thus completing the pretreatment. This method of sequentially transporting the metal can to the cutting and cleaning devices is time-consuming and detrimental to improving recycling efficiency. Summary of the Invention

[0004] This invention aims to at least solve one of the technical problems existing in the prior art. To this end, this invention proposes a metal recycling pretreatment device, which is beneficial to improving the recycling efficiency of metal cans.

[0005] A metal recycling pretreatment apparatus according to an embodiment of the present invention includes:

[0006] A frame, on which a cutting device is mounted;

[0007] A first clamping rotating device and a second clamping rotating device are provided. The first clamping rotating device is mounted on the frame, and the second clamping rotating device is oscillatingly connected to the frame and located behind the first clamping rotating device. The first clamping rotating device and the second clamping rotating device are used to clamp the body and the end of the metal can, respectively, and drive the body and the end to rotate along the central axis of the metal can, so that the cutting device can perform a circumferential cut at the connection between the body and the end, separating the body and the end.

[0008] A swing drive device is provided on the frame. The swing drive device is used to drive the second clamping rotation device to swing so that the end held by the second clamping rotation device moves away from the body and makes the axis of the end perpendicular to the axis of the body.

[0009] The machine includes a front and rear drive device and a cleaning device. The front and rear drive device is mounted on the frame and is used to drive the cleaning device close to the second clamping and rotating device and the first clamping and rotating device, so that the cleaning device can remove dirt from the inner wall of the end and the inner wall of the body.

[0010] It has at least the following beneficial effects:

[0011] After the first and second clamping rotating devices clamp the body and end portion of the metal can respectively, they drive the body and end portion to rotate synchronously. Simultaneously, a cutting device cuts the connection between the body and end portion, separating them. After separation, a swing drive device drives the second clamping rotating device to swing, moving the end portion away from the body and making its axis perpendicular to the body's axis. Once the end portion is away from the body, a front-rear drive device first moves a cleaning device closer to the second clamping rotating device, allowing it to remove dirt from the inner wall of the end portion on the second clamping rotating device. After the dirt on the end portion is removed, the front-rear drive device moves the cleaning device closer to the first clamping rotating device, allowing it to remove dirt from the inner wall of the body portion on the first clamping rotating device. Finally, the first and second clamping rotating devices release the body and end portion respectively, completing the pre-treatment of the metal can. This metal recycling pretreatment equipment has a compact structure and can immediately remove dirt from the body and end after separation, greatly shortening the time interval between the cutting step and the dirt removal step, thus shortening the metal can pretreatment time and improving the recycling efficiency of the metal can.

[0012] According to an embodiment of the present invention, a metal recycling pretreatment device further includes a lifting drive device and a plurality of casters. The plurality of casters are all mounted on the frame, and the frame moves on the ground via the plurality of casters. The lifting drive device is mounted on the frame and can drive the first clamping rotating device and the second clamping rotating device to lift and lower, so that the first clamping rotating device and the second clamping rotating device can respectively clamp the body and the end of the metal can placed on the ground.

[0013] According to an embodiment of the present invention, a metal recycling pretreatment device further includes a lifting drive device and a plurality of casters. The plurality of casters are all mounted on the frame, and the frame moves on the ground via the plurality of casters. The lifting drive device is mounted on the frame and can drive the first clamping rotating device and the second clamping rotating device to lift and lower, so that the first clamping rotating device and the second clamping rotating device can respectively clamp the body and the end of the metal can placed on the ground.

[0014] According to an embodiment of the present invention, in a metal recycling pretreatment device, the first clamping and rotating device includes a first linear drive assembly and two first gripper portions. The gap between the two first gripper portions is used for the body of the metal can to pass through. The first linear drive assembly is used to drive the two first gripper portions to move closer or further away from each other, so that the two first gripper portions clamp the body of the metal can, or so that the two first gripper portions release the body of the metal can.

[0015] According to an embodiment of the metal recycling pretreatment device of the present invention, a plurality of first rollers are rotatably connected to each of the two first gripper portions, the axis of the first rollers is parallel to the axis of the body, and the first gripper portion abuts against the body through the first rollers.

[0016] According to an embodiment of the metal recycling pretreatment equipment of the present invention, the first clamping and rotating device further includes a first servo motor, the first servo motor is disposed on one of the first gripper portions, the first servo motor is velocally connected to a first roller on one of the first gripper portions, and the first servo motor drives the first roller to rotate so as to rotate the body.

[0017] According to an embodiment of the metal recycling pretreatment equipment of the present invention, the swing drive device includes a fan ring block, a pulley, a support block, and a rotary drive component. The fan ring block is provided with an arc-shaped guide groove and is connected to the frame. The support block is connected to the second clamping and rotating device. The pulley is rotatably connected to the support block and abuts against the inner wall of the arc-shaped guide groove. The rotary drive component is connected to the support block, and the output end of the rotary drive component is driven to the pulley. The rotary drive component is used to drive the pulley to rotate so that the pulley can roll in the arc-shaped guide groove and cause the second clamping and rotating device to swing along the extension direction of the arc-shaped guide groove.

[0018] According to an embodiment of the metal recycling pretreatment equipment of the present invention, the cleaning device includes a water spray pipe and an indexing plate. The indexing plate is connected to the output end of the front and rear drive devices. The indexing plate can drive the water spray pipe to rotate by ° so that the water spray pipe is directed toward the second clamping rotating device or the first clamping rotating device. The water spray pipe is used to spray cleaning fluid that is sprayed onto the inner wall of the end and the inner wall of the main body for cleaning.

[0019] The metal recycling pretreatment equipment according to an embodiment of the present invention further includes a milling device, which is connected to the output end of the front and rear drive device. The front and rear drive device can drive the milling device to extend into the end head on the second clamping and rotating device so that the milling device can mill the inner wall of the end head.

[0020] According to an embodiment of the metal recycling pretreatment equipment of the present invention, a cutting judgment device and a controller are further included. The controller is electrically connected to the first clamping rotating device, the second clamping rotating device and the cutting device. The cutting judgment device is used to detect whether the body and the end are in a connected state or a separated state, so that the controller controls the first clamping rotating device, the second clamping rotating device and the cutting device to open or close.

[0021] According to an embodiment of the metal recycling pretreatment equipment of the present invention, the cutting device is a water jet cutting mechanism, which is disposed between the first clamping and rotating device and the second clamping and rotating device.

[0022] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0024] Figure 1 This is a schematic diagram of the structure of a metal can according to an embodiment of the present invention;

[0025] Figure 2 This is a schematic diagram of the structure of a metal can with the body and end separated according to an embodiment of the present invention;

[0026] Figure 3 This is a schematic diagram of the structure of a metal recycling pretreatment device according to an embodiment of the present invention;

[0027] Figure 4 This is a schematic diagram of the structure of the metal can, lifting drive device, first clamping rotation device, second clamping rotation device and swing drive device according to an embodiment of the present invention.

[0028] Figure 5 This is a schematic diagram of the structure of the metal can, the first clamping and rotating device, the second clamping and rotating device, and the swing driving device according to an embodiment of the present invention.

[0029] Figure 6 This is a schematic diagram of the structure of the metal can, the first clamping and rotating device, the second clamping and rotating device, and the swing driving device in a separated state according to an embodiment of the present invention.

[0030] Figure 7 This is a schematic diagram of the structure of the first gripper, the second gripper, the third gripper, and the metal can according to an embodiment of the present invention;

[0031] Figure 8 This is a schematic diagram of the structure of the milling device, the front and rear drive device, and the cleaning device according to an embodiment of the present invention;

[0032] Figure label:

[0033] First clamping and rotating device 100; first bracket 110; first linear drive assembly 120; first nut 121; first threaded rod 122; first gripper portion 130; first roller 140; first servo motor 150; third bracket 160; third linear drive assembly 170; third gripper portion 180; third roller 190;

[0034] Second clamping and rotating device 200; second support 210; second linear drive assembly 220; second gripper 230; second roller 240; second servo motor 250; cutting device 300;

[0035] Oscillating drive device 400; fan ring block 410; arc-shaped guide groove 411; support block 420; rotary drive component 430;

[0036] Front and rear drive unit 500; front and rear drive assembly 510; first left and right drive assembly 520; second left and right drive assembly 530;

[0037] Cleaning device 600; water spray pipe 610; indexing plate 620; milling device 700;

[0038] Frame 800; lifting drive device 810; gear 811; rack 812; slide bar 813; slider 814; frame 815; caster wheel 820. Detailed Implementation

[0039] Embodiments of the present invention 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 the present invention, and should not be construed as limiting the present invention.

[0040] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and 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. Therefore, they should not be construed as limiting this invention.

[0041] In the description of this invention, "multiple" refers to two or more. The use of "first" and "second" is for distinguishing technical features only and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features or their sequential relationship.

[0042] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0043] refer to Figures 1 to 4 According to an embodiment of the present invention, a metal recycling pretreatment device includes:

[0044] The machine frame 800 is equipped with a cutting device 300.

[0045] A first clamping rotating device 100 and a second clamping rotating device 200 are provided. The first clamping rotating device 100 is mounted on the frame 800, and the second clamping rotating device 200 is oscillatingly connected to the frame 800 and located behind the first clamping rotating device 100. The first clamping rotating device 100 and the second clamping rotating device 200 are used to clamp the body and end of the metal can, respectively, and drive the body and end to rotate along the central axis of the metal can, so that the cutting device 300 performs a circumferential cut at the connection between the body and the end, separating the body and the end.

[0046] A swing drive device 400 is mounted on a frame 800. The swing drive device 400 is used to drive the second clamping rotation device 200 to swing so that the end held by the second clamping rotation device 200 is away from the body and the axis of the end is perpendicular to the axis of the body.

[0047] The front and rear drive device 500 and the cleaning device 600 are mounted on the frame 800. The front and rear drive device 500 is used to drive the cleaning device 600 close to the second clamping and rotating device 200 and the first clamping and rotating device 100 so that the cleaning device 600 can remove dirt from the inner wall of the end and the inner wall of the body.

[0048] Understandably, after the first clamping rotating device 100 and the second clamping rotating device 200 clamp the body and end portion of the metal can respectively, the first clamping rotating device 100 and the second clamping rotating device 200 drive the body and end portion to rotate synchronously. Simultaneously, the cutting device 300 cuts the connection between the body and the end portion, causing the body and end portion to separate. After the body and end portion separate, the swing driving device 400 drives the second clamping rotating device 200 to swing, causing the end portion to move away from the body and making the axis of the end portion perpendicular to the axis of the body. After the end portion moves away from the body, the front and rear driving device 500 first drives the cleaning device 600 to approach the second clamping rotating device 200, enabling the cleaning device 600 to remove dirt from the inner wall of the end portion on the second clamping rotating device 200. After the dirt on the end portion is removed, the front and rear driving device 500 drives the cleaning device 600 to approach the first clamping rotating device 100, enabling the cleaning device 600 to remove dirt from the inner wall of the body portion on the first clamping rotating device 100. Finally, the first clamping and rotating device 100 and the second clamping and rotating device 200 release the body and the end respectively, thus completing the pretreatment of the metal can. This metal recycling pretreatment equipment has a compact structure and can immediately remove dirt from the body and the end after separation, greatly shortening the time interval between the cutting step and the dirt removal step, reducing the pretreatment time of the metal can, and thus improving the recycling efficiency of the metal can.

[0049] refer to Figure 1The metal recycling pretreatment equipment also includes a lifting drive device 810 and multiple casters 820. The casters 820 are all mounted on a frame 800, which moves on the ground via the casters 820. The lifting drive device 810, mounted on the frame 800, drives the first clamping rotating device 100 and the second clamping rotating device 200 to descend, allowing them to clamp the body and end portions of the metal cans placed on the ground, respectively. In actual metal can recycling processes, the metal cans are quite heavy, and operators generally cannot easily lift them from the ground. Therefore, the multiple casters 820 on the frame 800 allow operators to move the frame 800 on the ground. When pre-processing metal cans placed on the ground is required, the operator can move the frame 800 above the metal can, so that the first clamping rotating device 100 and the second clamping rotating device 200 can be aligned with the metal can on the ground. Then, the lifting drive device 810 drives the first clamping rotating device 100 and the second clamping rotating device 200 to descend, so that the first clamping rotating device 100 and the second clamping rotating device 200 can clamp the body part and the end part of the metal can respectively. Then, the lifting drive device 810 drives the first clamping rotating device 100 and the second clamping rotating device 200 to rise, so that the cutting and dirt removal steps can be performed. With the universal wheels 820 and the lifting drive device 810, the operator can complete the cutting and dirt removal steps without lifting the metal can on the ground, which not only facilitates the operator but also helps to improve the recycling efficiency of metal cans.

[0050] As an embodiment of the present invention, the metal recycling pretreatment equipment further includes a laser-assisted positioning device, which is mounted on the frame 800. The laser-assisted positioning device projects a laser beam toward the ground in a rectangular frame shape. When the operator moves the frame 800, and the metal can on the ground is exactly within the laser rectangular frame, it means that the first clamping rotation device 100 and the second clamping rotation device 200 are precisely aligned with the body and end portion of the metal can, thus improving the clamping accuracy of the first clamping rotation device 100 and the second clamping rotation device 200.

[0051] In an embodiment of the present invention, reference is made to Figure 4The lifting drive device 810 includes a gear 811 drive assembly, a frame 815, a plurality of racks 812, a plurality of gears 811, a plurality of sliders 814, and a plurality of slide rods 813. The slide rods 813 are all parallel to the vertical direction, and their lower ends are all connected to the frame 800. The sliders 814 are all mounted on the frame 815 and are slidably connected to the slide rods 813. The racks 812 are all parallel to the vertical direction, and their lower ends are all connected to the frame 800. The gears 811 are rotatably connected to the frame 815 and mesh with the racks 812. The first clamping rotation device 100 and the second clamping rotation device 200 are both connected to the frame 815. The gear 811 drive assembly is used to drive multiple gears 811 to rotate forward or in reverse, which can cause the frame 815 to move up and down, thereby causing the first clamping rotating device 100 and the second clamping rotating device 200 to move up and down.

[0052] refer to Figure 1 and Figure 8The cleaning device 600 includes a water spray pipe 610 and an indexing plate 620. The indexing plate 620 is connected to the output end of the front and rear drive device 500. The indexing plate 620 can drive the water spray pipe 610 to rotate 90° so that the water spray pipe 610 faces the second clamping rotating device 200 or the first clamping rotating device 100. The water spray pipe 610 is used to spray cleaning fluid so that the cleaning fluid sprayed by the water spray pipe 610 washes away the dirt on the inner wall of the end or the inner wall of the body. In this embodiment of the invention, the initial state of the water spray pipe 610 is parallel to the left and right direction, that is, facing the second clamping rotating device 200 after swinging. In this embodiment of the invention, the front and rear drive device 500 includes a front and rear drive assembly 510 and a first left and right drive assembly 520. The output end of the front and rear drive assembly 510 is connected to the first left and right drive assembly 520. The indexing plate 620 is connected to the water spray pipe 610. Understandably, after the swing drive device 400 drives the second clamping rotation device 200 to swing, the end head moves away from the body (the axis of the end head is perpendicular to the axis of the body). At this time, the first left and right drive assembly 520 drives the indexing plate 620 to move closer to the second clamping rotation device 200 (i.e., drives the indexing plate 620 to move to the right), so that the water spray pipe 610 can extend into the inner cavity of the end head clamped by the second clamping rotation device 200. Then the water spray pipe 610 starts to spray cleaning fluid, and the sprayed cleaning fluid can wash away the dirt on the inner wall of the end head. After the end is rinsed clean, the first left-right drive assembly 520 drives the indexing plate 620 and the water spray pipe 610 away from the second clamping rotating device 200 (i.e., drives the indexing plate 620 to move to the left). Then, the indexing plate 620 drives the water spray pipe 610 to rotate 90° (at this time, the water spray pipe 610 is parallel to the front-back direction), so that the water spray pipe 610 faces the first clamping rotating device 100. Then, the front-back drive assembly 510 drives the first left-right drive assembly 520 to move closer to the first clamping rotating device 100 (i.e., drives the first left-right drive assembly 520 to move forward), so that the water spray pipe 610 can extend into the inner cavity of the body held by the first clamping rotating device 100. Then, the water spray pipe 610 begins to spray cleaning fluid, which can wash away the dirt on the inner wall of the body. Finally, the indexing plate 620 drives the water spray pipe 610 to rotate 90°, so that the water spray pipe 610 faces the second clamping rotating device 200 again, thus completing the reset.

[0053] In this embodiment of the invention, the cleaning device 600 further includes a water tank, a water pipe and a liquid pump. The water spray pipe 610 is connected to the water tank through the water pipe, and the liquid pump is located on the water pipe.

[0054] refer to Figure 8The metal recycling pretreatment equipment also includes a milling device 700, which is connected to the output end of a front and rear drive device 500. The front and rear drive device 500 can drive the milling device 700 to extend into the end of the second clamping and rotating device 200, so that the milling device 700 can mill the inner wall of the end. In this embodiment of the invention, the front and rear drive device 500 includes a second left and right drive assembly 530, and the output end of the front and rear drive assembly 510 is connected to the second left and right drive assembly 530. After the end is cleaned, the first left-right drive assembly 520 drives the indexing plate 620 and the water spray pipe 610 away from the second clamping rotating device 200, so that the water spray pipe 610 is pulled out from the end and away from the end. Then, the front-rear drive assembly 510 drives the second left-right drive assembly 530 to move forward, so that the milling device 700 is aligned with the end on the second clamping rotating device 200. Next, the second left-right drive assembly 530 drives the milling device 700 to move to the right and closer to the second clamping rotating device 200, so that the milling device 700 extends into the end. The second left-right drive assembly 530 continues to drive the milling device 700 to move to the right, so that the milling device 700 can mill the inner wall of the end. After milling, the second left-right drive assembly 530 drives the milling device 700 to move to the left, causing the milling device 700 to be pulled out from inside the end. Then, the indexing plate 620 drives the water spray pipe 610 to rotate 90°, so that the water spray pipe 610 faces the first clamping and rotating device 100 for the body rinsing process. It is understood that the inner wall of the end may have dirt that is difficult to remove. By milling away a thin layer of metal on the inner wall of the end by the milling device 700, the attached dirt can be removed. In this embodiment of the invention, the milling device 700 includes a milling cutter and a milling cutter drive. The milling cutter can abut against the inner wall of the end, and the milling cutter drive drives the milling cutter to rotate, causing the milling cutter to mill the inner wall of the end.

[0055] refer to Figures 5 to 7The first clamping and rotating device 100 includes a first linear drive assembly 120 and two first gripper portions 130. The gap between the two first gripper portions 130 is used for the body portion of the metal can to pass through. The first linear drive assembly 120 is used to drive the two first gripper portions 130 to move closer or further apart, so that the two first gripper portions 130 clamp the body portion of the metal can or release the body portion of the metal can. The first clamping and rotating device 100 also includes a first support 110, which is connected to the frame 815. The first linear drive assembly 120 includes a first motor, a first threaded rod 122, and two first nuts 121. The first motor is mounted on a first bracket 110. The first threaded rod 122 is parallel to the left-right direction, and both ends of the first threaded rod 122 are rotatably connected to the first bracket 110. The threads on the two ends of the first threaded rod 122 have opposite directions of rotation. The two first nuts 121 are threadedly connected to the threads on both ends of the first threaded rod 122, and are respectively connected to two first gripper portions 130. The output end of the first motor is connected to the first threaded rod 122. It can be understood that when the first motor drives the first threaded rod 122 to rotate, the two first nuts 121 move closer or further apart, thereby causing the two first gripper portions 130 to move closer or further apart.

[0056] refer to Figures 5 to 7 Each of the two first gripper portions 130 is rotatably connected to a plurality of first rollers 140, the axes of the first rollers 140 being parallel to the axis of the main body, and all of the first rollers 140 abutting against the main body. The first clamping and rotating device 100 also includes a first servo motor 150, which is mounted on one of the first gripper portions 130. The first servo motor 150 drives the first rollers 140 on one of the first gripper portions 130 to rotate, thereby causing the first rollers 140 on one of the first gripper portions 130 to drive the main body to rotate. It can be understood that with the plurality of first rollers 140 abutting against the main body, and the first servo motor 150 driving the first rollers 140 on one of the first gripper portions 130 to rotate, the first rollers 140 can drive the main body to rotate.

[0057] refer to Figure 5 and Figure 6As an embodiment of the present invention, the second clamping and rotating device 200 includes a second support 210, a second linear drive assembly 220, and two second gripper portions 230. The second support 210 is connected to the frame 815, and the second linear drive assembly 220 is disposed on the second support 210. One end of the second support 210 is rotatably connected to the frame 800. The gap between the two second gripper portions 230 is used for the end portion of the metal can to pass through. The second linear drive assembly 220 is used to drive the two second gripper portions 230 to move closer or further apart from each other, so that the two second gripper portions 230 clamp the end portion of the metal can, or to release the end portion of the metal can. The structure of the second linear drive assembly 220 is consistent with the structure of the second linear drive assembly 220. Multiple second rollers 240 are rotatably connected to each of the two second gripper portions 230. The axis of the second rollers 240 is parallel to the axis of the end portion, and the multiple second rollers 240 can abut against the end portion. The second clamping and rotating device 200 further includes a second servo motor 250, which is mounted on one of the second gripper portions 230. The second servo motor 250 drives the second roller 240 on one of the second gripper portions 230 to rotate, thereby causing the second roller 240 on one of the second gripper portions 230 to rotate the end head. It can be understood that multiple second rollers 240 abut against the end head, and the second servo motor 250 drives the first roller 140 on one of the first gripper portions 130 to rotate, thus causing the second roller 240 to rotate the end head.

[0058] In this invention, reference Figure 7The first servo motor 150 and the second servo motor 250 drive the first roller 140 and the second roller 240 to rotate synchronously, thereby causing the body and the end to rotate synchronously. At this time, the cutting device 300 cuts the connection between the body and the end, thus separating the body and the end from each other. The metal recycling pretreatment equipment also includes a cutting judgment device and a controller. The controller is electrically connected to the first clamping rotating device 100, the second clamping rotating device 200, and the cutting device 300. The cutting judgment device is used to detect whether the body and the end are connected or separated, so that the controller controls the first clamping rotating device 100, the second clamping rotating device 200, and the cutting device 300 to open or close. It is understood that the cutting judgment device can determine whether the body and the end are separated. When the cutting judgment device detects that the body and the end are connected (i.e., the body and the end are not completely separated), the cutting judgment device transmits a first signal to the controller. The controller controls the first servo motor 150, the second servo motor 250 and the cutting device 300 to remain on, so that the body and the end continue to rotate and the cutting device 300 continues to cut the connection between the body and the end. When the cutting judgment device detects that the body and the end are separated, the cutting judgment device transmits a second signal to the controller. The controller controls the first servo motor 150, the second servo motor 250 and the cutting device 300 to shut down. Then, the swing drive device drives the second clamping and rotating device 200 to swing in order to carry out the subsequent flushing and milling processes.

[0059] Specifically, the cut-off judgment device includes a first torque sensor, a second torque sensor, and a processor. The first torque sensor and the second torque sensor are electrically connected to the processor, and the processor is electrically connected to the controller. The first torque sensor detects the torque of the first servo motor 150, and the second torque sensor detects the torque of the second servo motor 250. The processor determines whether the torque of the first servo motor 150 and the torque of the second servo motor 250 are equal. When the torque of the first servo motor 150 and the torque of the second servo motor 250 are equal, the processor transmits a first signal to the controller. The controller controls the first servo motor 150, the second servo motor 250, and the cutting device 300 to remain on, so that the body and the end continue to rotate, and the cutting device 300 continues to cut the connection between the body and the end. At this time, it means that the body and the end have not been completely separated. When the torque of the first servo motor 150 and the torque of the second servo motor 250 are not equal, the processor transmits a second signal to the controller. The controller controls the first servo motor 150, the second servo motor 250, and the cutting device 300 to be off, and the body and the end stop rotating. At this time, the body and the end are in a completely separated state.

[0060] It needs to be explained that when the body and end cap are still connected, they can be considered as a single unit (i.e., a metal can). At this time, the first servo motor 150 drives the first roller 140 to rotate, and the second servo motor 250 drives the second roller 240 to rotate. Since the body and end cap are integrated, the first roller 140 and the second roller 240 experience the same force, resulting in the same torque for the first servo motor 150 and the second servo motor 250. However, after the body and end cap are separated, they should be considered as two separate parts. Because the weight of the body and the end cap are completely different, the first roller 140 and the second roller 240 experience different forces, resulting in different torques for the first servo motor 150 and the second servo motor 250. It can be understood that by determining whether the torques of the first servo motor 150 and the second servo motor 250 are equal, it is possible to determine whether the body and end cap have separated. This avoids the inability to perform subsequent processing due to the body and end cap not being separated.

[0061] The first clamping and rotating device 100 further includes a third linear drive assembly 170 and two third gripper portions 180. The third linear drive assembly 170 has the same structure as the first linear drive assembly 120. The gap between the two third gripper portions 180 is used for the body portion of the metal can to pass through. The third linear drive assembly 170 is used to drive the two third gripper portions 180 to move closer or further apart, so that the two third gripper portions 180 clamp the body portion of the metal can, or to release the body portion of the metal can. Multiple third rollers 190 are rotatably provided on each of the two third gripper portions 180, and the multiple third rollers 190 can abut against the body portion of the metal can. It is understood that by additionally providing the third linear drive assembly 170 and the two third gripper portions 180, the stability of the body being clamped can be improved.

[0062] refer to Figure 5 and Figure 6The swing drive device 400 includes a fan ring block 410, a pulley, a support block 420, and a rotary drive component 430. The fan ring block 410 is provided with an arc-shaped guide groove 411 and is connected to the frame 800. The support block 420 is connected to the second clamping and rotating device 200. The pulley is rotatably connected to the support block 420 and abuts against the inner wall of the arc-shaped guide groove 411. The rotary drive component 430 is connected to the support block 420 and is connected to the pulley for transmission. The rotary drive component 430 is used to drive the pulley to rotate so that the pulley can roll in the arc-shaped guide groove 411 and cause the second clamping and rotating device 200 to swing along the extension direction of the arc-shaped guide groove 411. It is understood that the support block 420 is connected to the second bracket 210, and the rotation drive 430 drives the pulley to rotate, causing the pulley to roll within the arc-shaped guide groove 411. The pulley moves along the extension direction of the arc-shaped guide groove 411, thereby causing the pulley to drive the support block 420. The support block 420 then drives the second bracket 210 to swing, causing the end to move away from the body and making the axis of the end perpendicular to the axis of the body. In this invention, the central angle of the arc-shaped guide groove 411 is 90°, which allows the second bracket 210 to swing 90° and make the axis of the end perpendicular to the axis of the body.

[0063] In one embodiment of the present invention, the cutting device 300 is a waterjet cutting mechanism. A waterjet cutting mechanism is a device that uses high-pressure water jets or water jets mixed with abrasives to cut materials. It has high safety and high cutting precision.

[0064] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0065] Of course, the present invention is not limited to the above-described embodiments. Those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of the present invention. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A metal recycling pretreatment device, characterized in that, include: A frame, on which a cutting device is mounted; A first clamping rotating device and a second clamping rotating device are provided. The first clamping rotating device is mounted on the frame, and the second clamping rotating device is oscillatingly connected to the frame and located behind the first clamping rotating device. The first clamping rotating device and the second clamping rotating device are used to clamp the body and the end of the metal can, respectively, and drive the body and the end to rotate along the central axis of the metal can, so that the cutting device can perform a circumferential cut at the connection between the body and the end, separating the body and the end. The swing drive device includes a fan ring block, a pulley, a support block, and a rotary drive component. The fan ring block has an arc-shaped guide groove and is connected to the frame. The support block is connected to a second clamping and rotating device. The pulley is rotatably connected to the support block and abuts against the inner wall of the arc-shaped guide groove. The rotary drive component is connected to the support block, and its output end is connected to the pulley. The rotary drive component drives the pulley to rotate, and the pulley can roll within the arc-shaped guide groove. The second clamping and rotating device swings along the extension direction of the arc-shaped guide groove so that the end held by the second clamping and rotating device is away from the body and the axis of the end is perpendicular to the axis of the body. The machine includes a front and rear drive device and a cleaning device. The front and rear drive device is mounted on the frame. The front and rear drive device is used to drive the cleaning device to approach the second clamping and rotating device and the first clamping and rotating device, so that the cleaning device can remove dirt from the inner wall of the end and the inner wall of the body. The first clamping and rotating device includes a first linear drive assembly and two first gripper portions. The gap between the two first gripper portions is used for the body of the metal can to pass through. The first linear drive assembly is used to drive the two first gripper portions to move closer or further apart from each other, so that the two first gripper portions clamp the body of the metal can, or so that the two first gripper portions release the body of the metal can.

2. The metal recycling pretreatment equipment according to claim 1, characterized in that: It also includes a lifting drive device and multiple casters, all of which are mounted on the frame. The frame moves on the ground via the multiple casters. The lifting drive device is mounted on the frame and can drive the first clamping rotating device and the second clamping rotating device to lift and lower, so that the first clamping rotating device and the second clamping rotating device can respectively clamp the body and the end of the metal can placed on the ground.

3. The metal recycling pretreatment equipment according to claim 1, characterized in that: Multiple first rollers are rotatably connected to each of the two first gripper portions. The axis of the first rollers is parallel to the axis of the body, and the first gripper portion abuts against the body through the first rollers.

4. The metal recycling pretreatment equipment according to claim 3, characterized in that: The first clamping and rotating device further includes a first servo motor, which is disposed on one of the first gripper portions. The first servo motor is connected to a first roller on one of the first gripper portions. The first servo motor drives the first roller to rotate, thereby causing the body to rotate.

5. The metal recycling pretreatment equipment according to claim 1, characterized in that: The cleaning device includes a water spray pipe and a dividing plate. The dividing plate is connected to the output end of the front and rear drive devices. The dividing plate can drive the water spray pipe to rotate so that the water spray pipe is directed toward the second clamping rotating device or the first clamping rotating device. The water spray pipe is used to spray cleaning fluid onto the inner wall of the end and the inner wall of the body for cleaning.

6. The metal recycling pretreatment equipment according to claim 1, characterized in that: It also includes a milling device, which is connected to the output end of the front and rear drive device. The front and rear drive device can drive the milling device to extend into the end on the second clamping and rotating device so that the milling device can mill the inner wall of the end.

7. The metal recycling pretreatment equipment according to claim 1, characterized in that: It also includes a cutting judgment device and a controller. The controller is electrically connected to the first clamping rotation device, the second clamping rotation device and the cutting device. The cutting judgment device is used to detect whether the body and the end are in a connected state or a separated state, so that the controller controls the first clamping rotation device, the second clamping rotation device and the cutting device to open or close.

8. The metal recycling pretreatment equipment according to claim 1, characterized in that: The cutting device is a water jet cutting mechanism, which is located between the first clamping and rotating device and the second clamping and rotating device.

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