A two-way extrusion device for metal scrap

Abstract

The utility model relates to two -way extrusion device technical field especially relates to a kind of two -way extrusion device for metal waste, including two -way extrusion forming unit;Two -way extrusion forming unit includes extrusion seat, extrusion head and hydraulic extrusion device, and the inside of extrusion seat is provided with extrusion cavity;Extrusion cavity symmetrical two sides are equipped with the extrusion mouth that is communicated with outside;Two groups of hydraulic extrusion device are respectively installed in the outside of two extrusion mouths;The telescopic drive end of two groups of hydraulic extrusion device is all connected with extrusion head axially;Two extrusion heads are driven under the drive of two groups of hydraulic extrusion device, move along the axial direction of extrusion cavity, and two extrusion heads are inserted into extrusion cavity from extrusion mouth or move out of extrusion cavity from extrusion mouth.It is installed below one extrusion mouth for collecting metal cake and moisture pushed from extrusion cavity, and the utility model can solve the technical problems, such as low extrusion efficiency caused by the two -way extrusion of existing metal waste, and unable to collect extruded oil and moisture.

Description

Technical Field

[0001] This utility model relates to the technical field of bidirectional extrusion devices, and in particular to a bidirectional extrusion device for metal scrap. Background Technology

[0002] Currently, in the field of metal scrap recycling, the processing of loose metal scrap (such as metal powder and offcuts) mostly adopts unidirectional extrusion. Traditional unidirectional extrusion devices usually apply pressure to the metal scrap only from one side, making it difficult to effectively remove moisture from the scrap, which affects the quality and storage stability of the formed metal blocks.

[0003] Chinese invention patent application number 202411912977.0 discloses a metal powder briquetting machine, including a main pressure cylinder mounting base and a secondary pressure cylinder mounting base. A column is installed between the main pressure cylinder mounting base and the secondary pressure cylinder mounting base. A material box assembly is installed on the column. A box cover is rotatably installed on the material box assembly. A cover cylinder is rotatably connected to one side of the box cover. The cover cylinder is connected to the material box assembly. A main pressure cylinder and a secondary pressure cylinder are respectively installed on the main pressure cylinder mounting base and the secondary pressure cylinder mounting base. A fast cylinder assembly is installed on the main pressure cylinder. The fast cylinder assembly is sleeved on the column. A cake discharge cylinder is connected to the side of the secondary pressure cylinder. The cake discharge cylinder is connected to the material box assembly.

[0004] The aforementioned briquetting machine compresses metal powder into a cylindrical shape by moving the main and secondary pressure cylinders inward. After compression, the secondary pressure cylinder retracts, and the discharge cylinder moves the material box towards the main pressure cylinder. The compression rod pushes the cylindrical metal powder compact out, thus achieving discharge. However, the following drawbacks still exist: Although it is a bidirectional compression, the main pressure cylinder on the side near the discharge cylinder cannot be equipped with a rapid cylinder assembly. Therefore, during bidirectional extrusion, the main pressure cylinder on that side moves slowly by its own power, resulting in low extrusion efficiency, a very limited extrusion stroke, and restricted space in the material box. This makes it unsuitable for extruding larger weight metal powders, leading to slow briquetting efficiency. Furthermore, when processing waste with high oil content, the extruded oil and moisture cannot be collected. Utility Model Content

[0005] The purpose of this invention is to propose a bidirectional extrusion device for metal scrap, which can solve the technical problems of low extrusion efficiency and inability to collect the extruded oil and water caused by existing bidirectional extrusion of metal scrap.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] A biaxial extrusion apparatus for metal scrap, comprising a biaxial extrusion forming unit;

[0008] The bidirectional extrusion molding unit includes an extrusion seat, an extrusion head, and a hydraulic extrusion device, wherein the extrusion seat has an extrusion cavity inside;

[0009] The extrusion seat has extrusion ports that communicate with the outside on its two symmetrical sides, and the two sets of hydraulic extrusion devices are respectively installed on the outside of the two extrusion ports.

[0010] Both sets of hydraulic extrusion devices have an axially connected extrusion head at their telescopic drive ends; the two extrusion heads move along the axial direction of the extrusion chamber under the drive of the two sets of hydraulic extrusion devices, extending the two extrusion heads from the extrusion port into the extrusion chamber or removing them from the extrusion port out of the extrusion chamber.

[0011] The extrusion port is defined as the discharge port, and a discharge unit is installed below the discharge port. The discharge unit is used to collect the metal cake and moisture pushed out from the extrusion chamber.

[0012] The discharge unit includes a discharge slide and a water collection base;

[0013] The discharge slide is inclined, with the higher end of the discharge slide located below the discharge port;

[0014] The discharge slide has multiple water filter holes, and the water collection base is located below the bidirectional extrusion molding unit.

[0015] Preferably, the hydraulic extrusion device includes a hydraulic cylinder and a hydraulic telescopic rod. One end of the hydraulic telescopic rod is connected to a piston inside the hydraulic cylinder, and the other end of the hydraulic telescopic rod is connected to the extrusion head. The extension and retraction directions of the two extrusion heads are collinear with the axial direction of the extrusion chamber, and the cross-section of the extrusion head is the same as the cross-section of the extrusion chamber.

[0016] The two hydraulic cylinders are used to drive the extrusion head connected to them to move along the axial direction of the extrusion chamber.

[0017] Preferably, the hydraulic extrusion device further includes a support base, a movable plate, multiple auxiliary cylinders, and multiple guide rods;

[0018] The hydraulic cylinder is fixedly installed at the center of the support base, and the auxiliary cylinder is fixedly installed on the side of the support base.

[0019] Multiple guide rods are distributed in parallel around the extension and retraction direction of the hydraulic cylinder, and multiple guide rods are parallel to each other through the moving plate, with the two ends of the guide rods respectively fixedly connected to the support seat and the pressing seat;

[0020] The piston in the hydraulic cylinder and the piston in the auxiliary cylinder are respectively fixedly connected to the moving plate.

[0021] Preferably, the extrusion chamber is further provided with a feed inlet communicating with the outside, and the opening direction of the feed inlet is perpendicular to the opening direction of the two extrusion ports;

[0022] A material gathering and pushing unit is installed at the feed inlet, and the material gathering and pushing unit is installed on the outside of the extrusion seat;

[0023] The material gathering and pushing unit includes a pushing drive assembly and a pushing plate. The pushing drive assembly is used to drive the pushing plate to move closer to or away from the feed port. The movement of the feed port closer to or away is used to control the blocking or opening of the feed port according to process requirements.

[0024] Preferably, the material gathering and pushing unit further includes a material gathering frame, a material gathering component, and a material pushing component;

[0025] The material gathering frame has a material gathering port and a material pushing port on two opposite sides, and the material pushing port, material gathering port and material inlet are arranged opposite each other in sequence;

[0026] The material collection component is installed at the material collection port, and the material collection component is used to collect and sort the metal waste falling into the material collection frame by mechanical pressing.

[0027] The pushing assembly is installed at the pushing port. The pushing assembly includes the pushing drive assembly and the pushing plate. The pushing drive assembly is used to push the metal scrap falling into the collecting frame through the collecting port and the feeding port into the bidirectional extrusion molding unit by mechanical pushing. According to the process requirements, the pushing plate is controlled to block or open the feeding port.

[0028] Preferably, the polymer assembly includes a polymer support, a polymer cylinder, a polymer hydraulic telescopic rod, and a polymer plate;

[0029] The material-aggregating bracket supports the material-aggregating cylinder. One end of the material-aggregating hydraulic telescopic rod is connected to the material-aggregating cylinder, and the other end of the material-aggregating hydraulic telescopic rod is hinged to one side of the material-aggregating plate. One end of the material-aggregating plate is hinged to the material-aggregating frame. The hinge point between the material-aggregating plate and the material-aggregating frame is located near the material-aggregating port.

[0030] The material-aggregating cylinder drives the material-aggregating plate through the material-aggregating hydraulic telescopic rod to close the upper opening of the material-aggregating frame.

[0031] Preferably, the pushing drive assembly includes a pushing cylinder and a pushing hydraulic telescopic rod;

[0032] One end of the pusher hydraulic telescopic rod is connected to the pusher cylinder, and the other end of the pusher hydraulic telescopic rod is connected to one side of the pusher plate. The pusher hydraulic telescopic rod is movably inserted through the pusher opening.

[0033] Preferably, the shape of the pusher plate facing the pusher opening and the shape of the inner cavity surface of the extrusion chamber are both arc surfaces.

[0034] One of the above technical solutions has the following beneficial effects:

[0035] 1. Improved extrusion efficiency and forming quality: Compared to traditional unidirectional extrusion devices, the extrusion heads driven by two sets of hydraulic extrusion devices extrude synchronously from both sides, making the metal scrap more evenly stressed. This avoids the problem of large density differences in the formed metal blocks caused by uneven pressure distribution during unidirectional extrusion, significantly improving the forming quality of the metal discs. At the same time, the bidirectional extrusion method shortens the extrusion time and increases the processing efficiency per unit time.

[0036] 2. Optimize the discharge method and reduce wear: Unlike the previous technology, which uses the cake discharge cylinder to move the entire material box to discharge the material, this technology pushes the metal cake out of the discharge port by pushing on one side of the extrusion head and withdrawing on the other side. There is no need to move the extrusion seat or material box, which greatly reduces the frictional wear between components, extends the service life of the device, and speeds up the discharge speed, thereby improving the overall operating efficiency.

[0037] 3. Efficient Moisture Collection, Ensuring Quality and Environmental Conservation: For metal scrap with high oil or moisture content, the discharge unit design solves the problem of oil and water collection in existing technologies. The filter holes on the discharge slide effectively separate the moisture carried by the metal cake, and the water collection base enables centralized collection. This avoids residual moisture affecting the storage stability and quality of the metal cake, and also prevents indiscriminate discharge of moisture from polluting the working environment, thus meeting environmental protection requirements. Attached Figure Description

[0038] Figure 1 This is a schematic diagram of the bidirectional extrusion forming unit in a bidirectional extrusion device for metal scrap according to this utility model.

[0039] Figure 2 This is a schematic diagram of the structure of a bidirectional extrusion device for metal scrap according to the present invention;

[0040] Figure 3 yes Figure 2 A top-down view;

[0041] Figure 4 yes Figure 3 Schematic diagram of the cross section at point AA;

[0042] Figure 5 yes Figure 3 Schematic diagram of the cross section at point BB;

[0043] In the attached diagram: material gathering and pushing unit 3, material gathering frame 31, material gathering port 311, material pushing port 312, material gathering device 32, material gathering cylinder 321, material gathering hydraulic telescopic rod 322, material gathering plate 323, material pushing device 33, material pushing cylinder 331, material pushing hydraulic telescopic rod 332, material pushing plate 333, support frame 34;

[0044] Bidirectional extrusion molding unit 4, extrusion seat 41, extrusion chamber 411, feed port 412, extrusion port 413, discharge port 414, hydraulic extrusion device 42, hydraulic cylinder 421, hydraulic telescopic rod 422, extrusion head 423, support seat 424, moving plate 425, auxiliary cylinder 426, guide rod 427;

[0045] Discharge unit 5, discharge slide 51, water collection base 52. Detailed Implementation

[0046] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0047] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0048] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0049] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0050] A biaxial extrusion apparatus for metal scrap includes a biaxial extrusion forming unit 4;

[0051] The bidirectional extrusion molding unit 4 includes an extrusion seat 41, an extrusion head and a hydraulic extrusion device 42, and the extrusion seat 41 has an extrusion cavity 411 inside;

[0052] The extrusion seat 41 has extrusion ports 413 communicating with the outside on its two symmetrical sides, and the two sets of hydraulic extrusion devices 42 are respectively installed on the outside of the two extrusion ports 413.

[0053] Both sets of hydraulic extrusion devices 42 have an axially connected extrusion head 423 at their telescopic drive ends; the two extrusion heads 423 move along the axial direction of the extrusion chamber 411 under the drive of the two sets of hydraulic extrusion devices 42, so that the two extrusion heads 423 extend into the extrusion chamber 411 from the extrusion port 413 or move out of the extrusion chamber 411 from the extrusion port 413.

[0054] The extrusion port 413 is defined as the discharge port 414. A discharge unit 5 is installed below the discharge port 414. The discharge unit 5 is used to collect the metal cake and moisture pushed out from the extrusion chamber 411.

[0055] The discharge unit 5 includes a discharge slide 51 and a water collection base 52;

[0056] The discharge slide 51 is inclined, and the higher end of the discharge slide 51 is located below the discharge port 414;

[0057] The discharge slide 51 has multiple water filter holes, and the water collection base 52 is located below the bidirectional extrusion molding unit 4.

[0058] like Figure 1-2 As shown, in this bidirectional extrusion device for metal scrap, when the extrusion chamber 411 inside the extrusion seat 41 is filled with metal scrap, two sets of hydraulic extrusion devices 42, symmetrically arranged at the extrusion ports 413 and the discharge port 414 on both sides of the extrusion chamber 411, begin to operate. The hydraulic extrusion devices 42 utilize the pressure generated by the hydraulic system to extend two extrusion heads 423 from the extrusion ports 413 and the discharge port 414 into the extrusion chamber 411 from two opposite directions, simultaneously applying extrusion pressure to the metal scrap within the extrusion chamber 411. Under the action of bidirectional pressure, the metal scrap is uniformly extruded, the internal voids are effectively compressed, and it gradually forms a metal cake. At the same time, the moisture contained in the scrap is also squeezed out under pressure.

[0059] Once the extrusion is complete and the set pressure and forming effect are achieved, one side of the extrusion head 423 stops advancing and pushes back until it is removed from the extrusion chamber 411 through the discharge port 414 and returns to its initial position. At the same time, the other side of the extrusion head 423 continues to advance, pushing the formed metal cake and the removed moisture out of the extrusion chamber 411 through the discharge port 414. Then, the extrusion head 423 retracts and is removed from the extrusion chamber 411 and returns to its initial position.

[0060] The ejected cylindrical metal cake rolls down the inclined discharge slide 51. Since the higher end of the discharge slide 51 is located below the discharge port 414 of the bidirectional extrusion molding unit 4, this inclined design utilizes gravity to allow the cylindrical metal cake to smoothly slide to the designated position. Simultaneously, the multiple water-filtering holes on the discharge slide 51 play a crucial role. During the rolling process, water carried out by the cylindrical metal cake as it is ejected by the hydraulic telescopic rod 422 flows along the discharge slide 51 and drips through the water-filtering holes. This dripping water and the ejected water are collected by the water-collecting base 52 located below the bidirectional extrusion molding unit 4, achieving water filtration and collection, thus completing the entire discharge process.

[0061] To further explain, the hydraulic extrusion device 42 includes a hydraulic cylinder 421 and a hydraulic telescopic rod 422. One end of the hydraulic telescopic rod 422 is connected to the piston inside the hydraulic cylinder 421, and the other end of the hydraulic telescopic rod 422 is connected to the extrusion head 423. The extension and retraction directions of the two extrusion heads 423 are collinear with the axial direction of the extrusion chamber 411, and the cross-section of the extrusion head 423 is the same as the cross-section of the extrusion chamber 411.

[0062] The two hydraulic cylinders 421 are used to drive the extrusion head 423 connected to them to move along the axial direction of the extrusion chamber 411.

[0063] like Figure 1 and Figure 5 As shown, when the metal scrap enters the extrusion chamber 411, the bidirectional extrusion molding unit 4 plays a crucial role. The extrusion heads 423 on both sides of the extrusion chamber 411 are simultaneously activated by the hydraulic cylinder 421, applying pressure to the metal scrap located within the extrusion chamber 411 from two opposite directions. Under the continuous action of bidirectional pressure, the moisture inside the metal scrap is further squeezed out, and the metal scrap is compressed into a uniformly dense and compact metal cake. After extrusion, the formed metal cake and the released moisture are sent out of the bidirectional extrusion molding unit 4 through the extrusion port 413.

[0064] To further explain, the hydraulic extrusion device 42 also includes a support base 424, a movable plate 425, multiple auxiliary cylinders 426, and multiple guide rods 427;

[0065] The hydraulic cylinder 421 is fixedly installed at the center of the support base 424, and the auxiliary cylinder 426 is fixedly installed on the side of the support base 424.

[0066] Multiple guide rods 427 are distributed in parallel around the extension and retraction direction of the hydraulic cylinder 421. The multiple guide rods 427 are parallel to each other and pass through the moving plate 425. The two ends of the guide rods 427 are respectively fixedly connected to the support base 424 and the pressing base 41.

[0067] The piston in the hydraulic cylinder 421 and the piston in the auxiliary cylinder 426 are respectively fixedly connected to the moving plate 425.

[0068] It should be noted that the hydraulic cylinder 421 is a high-pressure oil cylinder, and the auxiliary cylinder 426 has a smaller cylinder diameter, rod diameter, and stroke than the original ordinary oil cylinder, meaning that the filling volume of the auxiliary oil cylinder is also several times smaller than that of the original ordinary oil cylinder. The movement of the extrusion head 423 when it is not in contact with the metal scrap is defined as the idle stroke.

[0069] like Figure 1 As shown, the support base 424 serves as the fixed base for the hydraulic cylinder 421, providing stable support for the entire extrusion action. Multiple guide rods 427, distributed parallel to the hydraulic cylinder 421, are connected at both ends to the support base 424 and the extrusion seat 41, respectively, ensuring that the moving plate 425 can move along its length, thus guaranteeing the overall structural stability of the device during extrusion and preventing displacement or deformation due to high pressure.

[0070] When the scrap metal enters the extrusion chamber 411, the hydraulic extrusion device 42 drives the extrusion head 423 to move along the axis of the extrusion chamber 411, and the hydraulic extrusion device 42 starts the three-stage drive mode:

[0071] Rapid idle phase: First, oil is supplied to the auxiliary cylinder 426. Because the auxiliary cylinder 426 has a smaller cylinder diameter, rod diameter, and stroke than the original ordinary cylinder, its filling volume is significantly reduced. Under the same high-pressure oil volume, the piston of the auxiliary cylinder 426 pushes the moving plate 425 at a faster speed than the traditional cylinder, causing the extrusion head 423 to quickly approach the extrusion seat 41. This phase takes significantly less time than the traditional single-cylinder system. Simultaneously, multiple guide rods 427 ensure that the moving plate 425 has minimal displacement deviation under high pressure, guaranteeing extrusion accuracy.

[0072] Contact pressurization stage: When the extrusion head 423 contacts the extrusion seat 41, the auxiliary cylinder 426 stops supplying oil and locks. At this time, oil is supplied to the hydraulic cylinder 421. The hydraulic cylinder 421 drives the extrusion head 423 through the extrusion port 413 and into the extrusion chamber 411, and provides extrusion force to both sides of the metal scrap located in the extrusion chamber 411 to ensure that the scrap is initially formed.

[0073] High-pressure holding stage: When the hydraulic telescopic rod 422 in the hydraulic cylinder 421 extends to the preset length, the hydraulic cylinder 421 stops supplying oil and locks, maintaining the extrusion pressure to ensure that the waste material is finally formed.

[0074] Once the extrusion is complete and the set time and molding effect are achieved, oil is supplied to one of the auxiliary cylinders 426, and the hydraulic telescopic rod 422 is retracted, causing the connected extrusion head 423 to stop advancing and quickly push backward until it is removed from the extrusion port 413 and exits the extrusion chamber 411, returning to the initial state.

[0075] Meanwhile, another hydraulic cylinder 421 continuously supplies oil, using the hydraulic telescopic rod 422 until the formed metal cake and the removed water are pushed out of the extrusion chamber 411 through the discharge port 414, completing one extrusion molding operation and discharge process. Then, oil is supplied to another auxiliary cylinder 426, while the hydraulic telescopic rod 422 is retracted, causing the connected extrusion head 423 to stop advancing and quickly push backward until it is removed from the extrusion port 413 and out of the extrusion chamber 411, returning to the initial state.

[0076] Finally, repeat the above steps to begin the next extrusion molding operation and discharge process.

[0077] To further explain, the extrusion chamber 411 is also provided with a feed inlet 412 that communicates with the outside, and the opening direction of the feed inlet 412 is perpendicular to the opening direction of the two extrusion ports 413.

[0078] A material gathering and pushing unit 3 is installed at the feed inlet 412, and the material gathering and pushing unit 3 is installed on the outside of the extrusion seat 41;

[0079] The material gathering and pushing unit 3 includes a pushing drive assembly and a pushing plate 333. The pushing drive assembly is used to drive the pushing plate 333 to move closer to or away from the feed inlet 412. The movement of the feed inlet 412 closer to or away from the feed inlet 412 is used to control the blocking or opening of the feed inlet 412 according to process requirements.

[0080] To further explain, the material gathering and pushing unit 3 also includes a material gathering frame 31, a material gathering component 32, and a material pushing component 33;

[0081] The material collection frame 31 has a material collection port 311 and a material pusher port 312 on two opposite sides, and the material pusher port 312, the material collection port 311 and the material inlet port 412 are arranged opposite to each other in sequence;

[0082] The material gathering component 32 is installed at the material gathering port 311. The material gathering component 32 is used to gather and organize the metal waste falling into the material gathering frame 31 by mechanical pressing.

[0083] The pushing component 33 is installed at the pushing port 312. The pushing component 33 includes the pushing drive component and the pushing plate 333. The pushing drive component is used to push the metal scrap falling into the material collection frame 31 through the material collection port 311 and the feed port 412 into the bidirectional extrusion molding unit 4 by mechanical pushing. According to the process requirements, the pushing plate 333 is controlled to block or open the feed port 412.

[0084] Because the metal scrap falling into the collecting frame 31 will accumulate in a hill-like shape, with the highest point possibly exceeding the height of the collecting frame 31, the pushing component 33 cannot push all the metal scrap from the collecting port into the extrusion chamber 411. This easily causes the metal scrap exceeding the collecting frame 31 to spill out of the collecting frame due to obstruction. This not only wastes metal scrap but also makes the amount of metal scrap pushed into the biaxial extrusion molding unit 4 uncontrollable, resulting in unreliable subsequent extrusion effects. Therefore, a collecting and pushing unit 3 is installed at the feed inlet 412 of the biaxial extrusion molding unit 4. Figure 2-4 As shown, its working principle is as follows:

[0085] When scrap metal enters the collection frame 31, it accumulates irregularly due to its varying shape and size. At this time, the collection component 32, installed at the collection port 311, begins operation, mechanically pressing down to gather scrap metal exceeding the height of the collection frame 31, creating a flat and compact accumulation within the frame and ensuring the scrap height does not exceed the frame's boundary. During this scrap handling process, the pusher drive component at the pusher port 312 also starts simultaneously, smoothly pushing the neatly arranged scrap metal from the collection frame 31 into the bidirectional extrusion molding unit 4 along the direction of the collection port 311 and the inlet 412 of the bidirectional extrusion molding unit 4, until the pusher plate 333 blocks the inlet 412, at which point the bidirectional extrusion molding unit 4 begins its bidirectional extrusion operation. After completing the bidirectional extrusion operation, the pusher drive component drives the pusher plate 333 to open the inlet 412.

[0086] Throughout the process, the material gathering component 32 and the material pushing component 33 work together. The material gathering component 32 first pre-processes the waste material to eliminate the problem of irregular accumulation, and provides the material pushing component 33 with material that is easy to push and has a stable amount of waste material, so as to ensure that the metal waste can enter the bidirectional extrusion molding unit 4 for processing in a complete and orderly manner.

[0087] To further explain, the material gathering assembly 32 includes a material gathering bracket 320, a material gathering cylinder 321, a material gathering hydraulic telescopic rod 322, and a material gathering plate 323;

[0088] The material-gathering bracket 320 supports the material-gathering cylinder 321. One end of the material-gathering hydraulic telescopic rod 322 is connected to the material-gathering cylinder 321, and the other end of the material-gathering hydraulic telescopic rod 322 is hinged to one side of the material-gathering plate 323. One end of the material-gathering plate 323 is hinged to the material-gathering frame 31. The hinge point between the material-gathering plate 323 and the material-gathering frame 31 is located near the material-gathering port 311.

[0089] The material-aggregating cylinder 321 drives the material-aggregating plate 323 through the material-aggregating hydraulic telescopic rod 322 to close the upper opening of the material-aggregating frame 31.

[0090] like Figure 4 As shown, the material collection bracket 320 supports the material collection cylinder 321 for fixation. Before the material pushing assembly 33 starts working, the material collection cylinder 321 drives the material collection hydraulic telescopic rod 322 to retract, causing the material collection plate 323 to flip upward, so that the material collection frame 31 is in an open state to receive metal scrap.

[0091] When the metal scrap to be extruded falls into the material collection frame 31, one side of the pusher port 312 is blocked by the pusher plate 333. The material collection cylinder 321 drives the material collection hydraulic telescopic rod 322 to extend in the opposite direction, so that the material collection plate 323 flips downward with the hinge as the axis, pressing the excessively piled metal scrap downward into the material collection frame 31, so that the height of the metal scrap in the material collection frame 31 does not exceed the height of the material collection frame 31, and can be completely pushed into the extrusion chamber 411 of the extrusion device 4 by the pusher assembly 33, thereby ensuring the subsequent extrusion effect.

[0092] To further explain, the pushing drive assembly includes a pushing cylinder 331 and a pushing hydraulic telescopic rod 332;

[0093] One end of the pusher hydraulic telescopic rod 332 is connected to the pusher cylinder 331, and the other end of the pusher hydraulic telescopic rod 332 is connected to one side of the pusher plate 333. The pusher hydraulic telescopic rod 332 is movably inserted through the pusher port 312.

[0094] like Figure 4 As shown, during the process of the metal scrap being processed by the material gathering component 32, the pusher cylinder 331 is activated, pushing the pusher hydraulic telescopic rod 332 to extend, which in turn moves the pusher plate 333 forward to apply a pushing force to the metal scrap, causing it to move closer to the material gathering port 311. As the pusher plate 333 pushes the scrap forward, the downward-flipping material gathering plate 323 gradually gathers the scrap, which is higher than the edge of the material gathering frame 31 and randomly piled up, towards the material gathering port 311. Through the coordinated action of the material gathering plate 323 and the pusher plate 333, not only is it effectively prevented that the scrap overflows from the material gathering frame 31 during the pushing process, but the internal voids of the scrap are also further compressed, making the material distribution more compact and uniform, and allowing it to completely enter the extrusion chamber 411, creating favorable conditions for subsequent extrusion molding.

[0095] Subsequently, the pusher plate 333 continues to exert force, pushing the sorted metal scrap from the pusher port 312 through the material collection port 311, along the direction corresponding to the feed port 40 of the bidirectional extrusion molding unit 4, precisely into the extrusion chamber 411 inside the bidirectional extrusion molding unit 4.

[0096] To further explain, the shape of the pusher plate 333 facing the pusher port 312 and the shape of the inner cavity surface of the extrusion chamber 411 are both arc surfaces.

[0097] like Figure 4 As shown, the shape of the pusher plate 333 facing the pusher port 312 needs to be set according to the specific shape of the extrusion chamber 411. Therefore, after the pusher plate 333 pushes the metal scrap into the extrusion chamber 411, the pusher plate 333 will not move during the extrusion molding process. At this time, the pusher plate 333 acts as the forming wall of the extrusion chamber 411 located at the feed port 412. For example, when the extrusion chamber 411 is cylindrical, the shape of the pusher plate 333 facing the extrusion chamber 411 is an arc surface, so that the metal cake finally stamped by the bidirectional extrusion molding unit 4 is cylindrical.

[0098] In a preferred embodiment, both the side of the pusher plate 333 facing the extrusion chamber 411 and the inner surface of the extrusion chamber 411 are arc surfaces. When the pusher plate 333 pushes the metal scrap into the extrusion chamber 411, the arc surface of the pusher plate 333 will join with the arc surface of the extrusion chamber 411, so that the metal scrap initially forms a cylindrical structure to be extruded, and then is extruded by the two extrusion heads 423 to form a compact cylindrical metal cake.

[0099] It should be noted that in this specific embodiment, the driving and coordination control of all cylinders are implemented by PLC, and the modification of the prior art in this specific embodiment lies in the hardware part. At the same time, the computer program involved is a simple program that can be easily implemented by those skilled in the art using existing computer program development platforms and well-known programming methods.

[0100] The technical principles of this utility model have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this utility model and should not be construed as limiting the scope of protection of this utility model in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this utility model without inventive effort, and these equivalent modifications or substitutions are all included within the scope defined by the claims of this application.

Claims

1. A bidirectional extrusion device for metal scrap, characterized in that, Includes a bidirectional extrusion molding unit (4); The bidirectional extrusion molding unit (4) includes an extrusion seat (41), an extrusion head and a hydraulic extrusion device (42), and the extrusion seat (41) has an extrusion cavity (411) inside; The extrusion seat (41) has extrusion ports (413) communicating with the outside on its two symmetrical sides, and the two sets of hydraulic extrusion devices (42) are respectively installed on the outside of the two extrusion ports (413). Both sets of hydraulic extrusion devices (42) are axially connected to extrusion heads (423) at their telescopic drive ends; the two extrusion heads (423) are driven by the two sets of hydraulic extrusion devices (42) to move along the axial direction of the extrusion chamber (411), so that the two extrusion heads (423) can be extended into the extrusion chamber (411) from the extrusion port (413) or moved out of the extrusion chamber (411) from the extrusion port (413); The extrusion port (413) is defined as the discharge port (414), and a discharge unit (5) is installed below the discharge port (414). The discharge unit (5) is used to collect the metal cake and moisture pushed out from the extrusion chamber (411). The discharge unit (5) includes a discharge slide (51) and a water collection base (52); The discharge slide (51) is inclined, and the higher end of the discharge slide (51) is located below the discharge port (414); The discharge slide (51) is provided with multiple water filter holes, and the water collection base (52) is located below the bidirectional extrusion molding unit (4).

2. The bidirectional extrusion device for metal scrap according to claim 1, characterized in that, The hydraulic extrusion device (42) includes a hydraulic cylinder (421) and a hydraulic telescopic rod (422). One end of the hydraulic telescopic rod (422) is connected to the piston inside the hydraulic cylinder (421), and the other end of the hydraulic telescopic rod (422) is connected to the extrusion head (423). The extension and retraction directions of the two extrusion heads (423) are collinear with the axial direction of the extrusion chamber (411), and the cross-section of the extrusion head (423) is the same as the cross-section of the extrusion chamber (411). The two hydraulic cylinders (421) are used to drive the extrusion head (423) connected thereto to move along the axial direction of the extrusion chamber (411).

3. The bidirectional extrusion device for metal scrap according to claim 2, characterized in that, The hydraulic extrusion device (42) also includes a support base (424), a movable plate (425), multiple auxiliary cylinders (426), and multiple guide rods (427); The hydraulic cylinder (421) is fixedly installed at the center of the support base (424), and the auxiliary cylinder (426) is fixedly installed on the side of the support base (424). Multiple guide rods (427) are distributed in parallel around the extension and retraction direction of the hydraulic cylinder (421), and multiple guide rods (427) are parallel to each other through the moving plate (425), and the two ends of the guide rods (427) are respectively fixedly connected to the support base (424) and the extrusion base (41); The piston in the hydraulic cylinder (421) and the piston in the auxiliary cylinder (426) are respectively fixedly connected to the moving plate (425).

4. The bidirectional extrusion device for metal scrap according to claim 1, characterized in that, The extrusion chamber (411) is also provided with a feed inlet (412) that communicates with the outside. The opening direction of the feed inlet (412) is perpendicular to the opening direction of the two extrusion ports (413). A material gathering and pushing unit (3) is installed at the feed inlet (412), and the material gathering and pushing unit (3) is installed on the outside of the extrusion seat (41); The material gathering and pushing unit (3) includes a pushing drive assembly and a pushing plate (333). The pushing drive assembly is used to drive the pushing plate (333) to move closer to or away from the feed inlet (412). The movement of the feed inlet (412) closer to or away from the feed inlet (412) is used to control the blocking or opening of the feed inlet (412) according to process requirements.

5. A bidirectional extrusion device for metal scrap according to claim 4, characterized in that, The material gathering and pushing unit (3) further includes a material gathering frame (31), a material gathering component (32), and a material pushing component (33); The material collection frame (31) has a material collection port (311) and a material pusher (312) on two opposite sides, and the material pusher (312), the material collection port (311) and the material inlet (412) are arranged opposite to each other in sequence; The material gathering component (32) is installed at the material gathering port (311). The material gathering component (32) is used to gather and sort the metal waste falling into the material gathering frame (31) by mechanical pressing. The pushing assembly (33) is installed at the pushing port (312). The pushing assembly (33) includes the pushing drive assembly and the pushing plate (333). The pushing drive assembly is used to push the metal scrap falling into the material collection frame (31) into the bidirectional extrusion molding unit (4) through the material collection port (311) and the feed port (412) by mechanical pushing. According to the process requirements, the pushing plate (333) is controlled to block or open the feed port (412).

6. A bidirectional extrusion device for metal scrap according to claim 5, characterized in that, The material-aggregating assembly (32) includes a material-aggregating bracket (320), a material-aggregating cylinder (321), a material-aggregating hydraulic telescopic rod (322), and a material-aggregating plate (323); The material-gathering bracket (320) supports the material-gathering cylinder (321). One end of the material-gathering hydraulic telescopic rod (322) is connected to the material-gathering cylinder (321), and the other end of the material-gathering hydraulic telescopic rod (322) is hinged to one side of the material-gathering plate (323). One end of the material-gathering plate (323) is hinged to the material-gathering frame (31), and the hinge point between the material-gathering plate (323) and the material-gathering frame (31) is located near the material-gathering port (311). The material-aggregating cylinder (321) drives the material-aggregating plate (323) through the material-aggregating hydraulic telescopic rod (322) to close the upper opening of the material-aggregating frame (31).

7. A bidirectional extrusion device for metal scrap according to claim 5, characterized in that, The material pushing drive assembly includes a material pushing cylinder (331) and a material pushing hydraulic telescopic rod (332); One end of the pusher hydraulic telescopic rod (332) is connected to the pusher cylinder (331), and the other end of the pusher hydraulic telescopic rod (332) is connected to one side of the pusher plate (333). The pusher hydraulic telescopic rod (332) is movably inserted through the pusher port (312).

8. A bidirectional extrusion device for metal scrap according to claim 7, characterized in that, The shape of the pusher plate (333) facing the pusher port (312) and the shape of the inner cavity surface of the extrusion chamber (411) are both arc surfaces.

Images