Hydraulic packing machine for metal scraps

Abstract

The invention relates to the technical field of press machines, and particularly discloses a hydraulic packing machine for metal scrap, which comprises a frame body, an upper pressing plate, a compression mechanism and a cleaning mechanism, the frame body comprises a bottom plate and a plurality of side plates, the compression mechanism comprises a main pressing assembly and a side pressing assembly, and the main pressing assembly comprises a main hydraulic cylinder and a main pressing head; the cleaning mechanism comprises a connecting piece, an elastic piece, a reset block and a plurality of movable strips, a connecting plate is arranged on the upper side of the bottom plate, the main pressing head is attached to the connecting plate to slide, the connecting piece is connected with the bottom plate through the elastic piece, a plurality of connecting grooves are formed in the connecting plate, and the movable strips extend into the upper side of the connecting piece through the connecting grooves; the front side end face of the movable strip is a vertical face, and the rear side end face of the movable strip inclines towards the front side from bottom to top. The height of the reset block is larger than that of the movable strip, the main pressing head movably abuts against the reset block, when the main pressing head retreats backwards, the lower pressing block abuts against the movable strip to move downwards, and separation of impurities and metal waste is promoted through the packaging machine.

Description

Technical Field

[0001] The present invention relates to the technical field of presses, in particular to a hydraulic baling machine for metal scraps. Background Art

[0002] The extrusion and baling of metal scrap is an important step in the recycling and reuse of scrap metal. Metal scrap is usually irregular in shape and large in size. In related technologies, hydraulic metal balers are often used to compress metal scrap into regular blocks to significantly reduce the volume of the metal scrap, making it easier to load, unload and transport, and also beneficial for subsequent processing such as smelting. Metal scrap may contain some impurities (such as sand, stone, glass, etc.). The physical properties of these impurities (such as hardness and elasticity) are different from those of metal scrap, which may form uneven stress points during the compression process, resulting in uneven compression of the metal scrap. Some areas may not achieve the ideal density and shape. The presence of impurities will also affect the fluidity and compressibility of the metal scrap during the compression process, resulting in irregular shapes of the compressed metal blocks, affecting the baling quality.

[0003] The patent document with authorization announcement number CN112776406B discloses a baler for recycling construction scrap metal, including a compression trough, a hydraulic pressure plate, a hydraulic compression component and a hydraulic head. The right top of the compression trough is movably connected to the right bottom of the hydraulic pressure plate, the right bottom of the compression trough is movably connected to the right outer wall of the hydraulic compression component, and the left side of the hydraulic compression component is movably connected to the left side of the hydraulic head; the baler provided by the patent document combines the compression trough, the hydraulic pressure plate and the hydraulic compression component to utilize gravitational potential energy to remove stone particles that fall when the scrap metal is squeezed, and at the same time clean the stone particles in time to prevent stone particles and other debris from accumulating in the compression trough.

[0004] In the actual production process, there are many types of metal scraps. The baler provided in the above patent document is used to compress metal debris generated by the demolition of buildings. The construction scrap metal is mainly scrap steel bars. When the baler squeezes the scrap steel bars, impurities such as stones can easily fall from the gaps between the steel bars to the bottom of the compression groove, which is convenient for subsequent collection. However, when compressing scrap metal such as iron filings or iron wires, the impurities are easily blocked and difficult to fall to the bottom of the compression groove, resulting in unsatisfactory impurity removal effect when the metal scraps are compressed, thereby affecting the baling effect of the metal scraps. Summary of the Invention

[0005] The present invention provides a hydraulic baler for metal scrap, aiming to solve the problem in the related art that when the baler compresses and bales the scrap metal, it is difficult to separate impurities in the metal scrap, and the impurities affect the compression effect of the metal block when compressed together with the metal scrap.

[0006] The hydraulic baler for metal scrap of the present invention comprises a frame, an upper pressure plate and a compression mechanism arranged in the frame, the frame comprises a horizontally arranged bottom plate and a plurality of vertically arranged side plates, the compression mechanism hydraulic comprises a main pressure assembly and a side pressure assembly, the main pressure assembly comprises a main hydraulic cylinder and a main pressure head, a cleaning mechanism is also provided in the frame, the cleaning mechanism comprises a connecting piece, an elastic piece, a reset block and a plurality of movable bars, a connecting plate is fixed parallel to the upper side of the bottom plate, the main pressure head slides against the connecting plate, the connecting piece is between the connecting plate and the bottom plate, the connecting piece is connected to the bottom plate through the elastic piece, the connecting piece The plate is provided with a plurality of connecting grooves corresponding to each of the movable bars, and each of the movable bars extends into the upper side of the connecting piece through the connecting grooves, and is arranged at intervals along the moving direction of the main pressure head; the side facing the extrusion direction of the main pressure head is the front side, the front end face of the movable bar is a vertical surface, and the rear end face of the movable bar is inclined from bottom to top to the front side; the reset block is located on the rear side of each of the movable bars, the height of the reset block is greater than the height of the movable bar, the main pressure head is movably abutted against the reset block, and a lower pressure block is provided on the rear side of the lower end of the main pressure head, and when the main pressure head retreats backward, the lower pressure block presses the movable bar downward.

[0007] The beneficial effects are: it promotes the separation of impurities in the compression and packaging operation of metal scraps and improves the packaging effect of metal scraps. The main pressing assembly cooperates with the cleaning mechanism. When squeezing the metal scraps, the main hydraulic cylinder drives the main pressing head to move in the frame and squeeze the metal scraps. When the main pressing head moves in contact with the connecting plate, it contacts with each movable bar at intervals and squeezes the movable bar to move downward. When the movable bar moves downward, it drives the connecting part to move downward as a whole and squeezes the elastic part to store force. When the main pressing head passes over a movable bar, the reset part drives the connecting part to move upward and reset. Each movable bar quickly pops out from the connecting groove and knocks the metal scraps. When the main pressing head compresses the metal scraps, Each movable bar strikes the metal scrap at intervals, effectively promoting the separation of impurities from the metal scrap and facilitating the impurities to fall onto the connecting plate. When the movable bar moves downward, the impurities fall between the movable bar and the connecting groove, and when the main pressure head is reset to push the reset block downward, a gap is generated between the movable bar and the connecting groove, and the impurities fall from the gap into between the connecting plate and the bottom plate, facilitating the subsequent collection and discharge of the impurities. In addition, when the movable bar strikes the metal scrap at intervals, it is also convenient to change the contact position and angle between the metal scrap and the main pressure head, avoiding the problem of severe local wear of the main pressure head, which is beneficial to extending the overall service life of the baler.

[0008] Preferably, the lower pressing block is connected to the main pressing head via a reset member, the rear end surface of the lower pressing block is inclined forward from top to bottom, and the inclined end of the lower pressing block is movably abutted against the movable bar.

[0009] The beneficial effects are: ensuring the normal retraction of the main pressure head. When the main pressure head is reset, the inclined end of the lower pressure block abuts against the straight side of the movable bar and squeezes the movable bar downward to prevent the movable bar from blocking the retraction of the main pressure head, thereby ensuring the normal circulation of the baler.

[0010] Preferably, the rear side surface of the connecting groove is inclined right rearward and forward downward to form a guide portion.

[0011] The beneficial effects are as follows: the inclined guide portion is convenient for temporarily storing fallen impurities, and the connecting groove forms a depression at the position of the guide portion. When the main pressure head slides against the connecting plate, the impurities are pushed into the guide portion. When the main pressure head is reset, the reset block is pushed down fully, and a gap is generated between the movable bar and the connecting groove. The impurities in the guide portion slide along the inclined direction of the guide portion to the connecting groove, and further fall between the connecting plate and the bottom plate through the gap between the connecting groove and the movable bar.

[0012] Preferably, the front end surface of the reset block is inclined from bottom to top toward the rear side, and the rear end of the main pressure head is movably abutted against the front end surface of the reset block.

[0013] The beneficial effect is: it is convenient for the main pressure head to push the reset block downward smoothly during the retreat process, and the main pressure head contacts the front end face of the reset block when retreating. When the main pressure head contacts the front end face of the reset block, the reset block is squeezed downward and the connecting part is driven to move downward as a whole. A gap for impurities to fall is formed between the movable bar and the connecting groove, which is convenient for collecting impurities.

[0014] Preferably, a downward pressing mechanism is also provided on the frame, and the downward pressing mechanism includes an extrusion plate, a downward pressing rod and a transmission assembly. The downward pressing rod is vertically arranged, the extrusion plate is connected to the upper end of the downward pressing rod, and the downward pressing rod is elastically connected to the frame in the vertical direction. The transmission assembly pushes the extrusion plate to move downward in the gap between the front side plate of the frame and the main pressure head.

[0015] The beneficial effects are: reducing the generation of burrs when metal scraps are packaged, further improving the packaging quality of metal scraps, and when the main pressure head squeezes the metal scraps, the transmission assembly pushes the extrusion plate downward in the gap between the frame and the lower pressure plate, avoiding the generation of burrs on the metal scraps in the gap between the frame and the lower pressure plate, further improving the overall packaging of the metal blocks, and avoiding the burrs on the metal blocks from affecting their subsequent stacking and transportation.

[0016] Preferably, a guide rod is fixed on the connecting member, and the guide rod is parallel to the lower pressure rod. The transmission assembly includes a mounting plate, a connecting seat, a connecting shaft, gear 1 and gear 2. The mounting plate is fixed on the front side of the frame, and the connecting seat is elastically connected to the mounting plate in the horizontal direction. The connecting shaft is rotatably assembled on the connecting seat, and the gear 1 is unidirectionally connected to the connecting shaft. The gear 2 is fixed to the connecting shaft and unidirectionally connected to the connecting seat. A tooth portion 1 is provided on the guide rod, and a tooth portion 2 is provided on the lower pressure rod. The gear 1 is meshed with the tooth portion 1, and the gear 2 is meshed with the tooth portion 2.

[0017] The beneficial effects are: improving the flexibility of the extrusion plate in extruding the metal waste in the gap; through the cooperation of the guide rod, the lower pressure rod, the connecting shaft, and gear one and gear two, while the main pressure head extrude the metal waste, the extrusion plate moves downward at intervals to extrude the metal waste in the gap between the lower pressure plate and the front side plate of the frame, thereby ensuring the extrusion strength of the metal waste in the gap, and thereby improving the quality of the metal waste after extrusion molding.

[0018] Preferably, a reset portion is provided at the upper end of the guide rod, and the reset portion is inclined toward the rear side from top to bottom. When the main pressure head squeezes the reset block to move completely downward, the reset portion abuts against the gear one and pushes the gear one to move toward the front side.

[0019] The beneficial effect is: by setting the reset part, the pressing mechanism can be automatically reset after a compression work is completed. When the main pressure head is reset, the reset block is squeezed and moved downward, and the guide rod moves downward until the reset block abuts against gear one, and pushes gear one to move forward, that is, the entire connecting seat moves forward, gear two is disengaged from tooth part two, and the pressing rod is reset under the action of elasticity, thereby driving the extrusion plate to reset.

[0020] Preferably, the upper end of the inner side of the front side side panel is inclined from top to bottom toward the rear side, and when the extrusion plate moves downward, the inclined section of the side panel moves downward, and the extrusion plate is elastically connected to the lower pressure rod in the horizontal direction.

[0021] The beneficial effect is: avoiding the interference of the extrusion plate on the snapping action of the lower pressure plate in the initial state. In the initial state, the extrusion plate is located on the upper side of the inclined section of the front side plate. The lower pressure plate does not contact the extrusion plate when snapping. The extrusion plate enters the gap between the lower pressure plate and the front side plate only after crossing the inclined section of the front side.

[0022] Preferably, the side pressure assembly includes a side pressure head and a side hydraulic cylinder, the protruding end of the side hydraulic cylinder is fixed to the side pressure head, and each of the movable bars avoids the moving space of the side pressure head.

[0023] The beneficial effect is that the setting range of each movable bar avoids the moving path of the side pressure head, which can effectively prevent the movable bar from interfering with the extrusion work of the side pressure head and ensure the normal operation of the side pressure assembly.

[0024] Preferably, the frame is further provided with a discharging mechanism, which includes a driving structure and a discharging push plate, and the driving structure drives the discharging push plate to rotate.

[0025] The beneficial effects are: improving the automation of the baler operation; after the metal waste is extruded inside the frame, the driving structure drives the discharge push plate to rotate, and the discharge push plate pushes the compressed metal block to the outside of the frame.

[0026] The beneficial effects of the present invention are: (1) It promotes the separation of impurities in the compression and packaging operation of metal scraps and improves the packaging effect of metal scraps. The main pressing assembly cooperates with the cleaning mechanism. When squeezing the metal scraps, the main hydraulic cylinder drives the main pressing head to move in the frame and squeeze the metal scraps. When the main pressing head moves in conjunction with the connecting plate, it contacts with each movable bar at intervals and squeezes the movable bar to move downward. When the movable bar moves downward, it drives the entire connecting part to move downward and squeezes the elastic part to store force. When the main pressing head passes over a movable bar, the reset part drives the connecting part to move upward and reset. Each movable bar quickly pops out from the connecting groove and knocks the metal scraps. When the main pressing head compresses the metal scraps, each The movable bar strikes the metal scrap at intervals, effectively promoting the separation of impurities from the metal scrap and facilitating the impurities to fall onto the connecting plate. When the movable bar moves downward, the impurities fall between the movable bar and the connecting groove, and when the main pressure head is reset to push the reset block to move downward, a gap is generated between the movable bar and the connecting groove, and the impurities fall from the gap into between the connecting plate and the bottom plate, facilitating the subsequent collection and discharge of the impurities. In addition, when the movable bar strikes the metal scrap at intervals, it is also convenient to change the contact position and angle between the metal scrap and the main pressure head, avoiding the problem of severe local wear of the main pressure head, which is beneficial to extending the overall service life of the baler.

[0027] (2) Reduce the generation of burrs when packing metal scraps, and further improve the packing quality of metal scraps. When the main pressure head squeezes the metal scraps, the transmission component pushes the extrusion plate to move downward in the gap between the frame and the lower pressure plate, avoiding the generation of burrs in the gap between the frame and the lower pressure plate, further improving the integrity of the metal block packing, and avoiding the burrs on the metal blocks from affecting their subsequent stacking and transportation. In addition, through the cooperation of the guide rod, the lower pressure rod, the connecting shaft, and the gear one and the gear two, while the main pressure head squeezes the metal scraps, the extrusion plate moves downward at intervals to squeeze the metal scraps in the gap between the lower pressure plate and the front side plate of the frame, ensuring the extrusion strength of the metal scraps in the gap, thereby improving the quality of the metal scraps after extrusion molding. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a left side view of the present invention.

[0029] Figure 2 It is a top view of the present invention.

[0030] Figure 3 It is a schematic diagram of the structure inside the frame of the present invention.

[0031] Figure 4 It is a structural schematic diagram of the connection between the cleaning mechanism and the pressing mechanism in the present invention.

[0032] Figure 5 It is a structural schematic diagram of the pressing mechanism in the present invention.

[0033] Figure 6 It is a structural schematic diagram of the connection between the main pressing head and the lower pressing block in the present invention.

[0034] Figure 7 It is a schematic diagram of the connection structure between the main pressing head and the lower pressing block in the present invention from another perspective.

[0035] Reference numerals: 1. Frame; 11. Hydraulic cylinder; 111. Upper pressure plate; 12. Main hydraulic cylinder; 121. Main pressure head; 122. Lower pressure block; 13. Side hydraulic cylinder; 131. Side pressure head; 14. Discharge push plate; 141. Driving structure; 15. Bottom plate; 2. Connecting plate; 21. Connecting piece; 22. Movable bar; 221. Guide part; 23. Elastic piece; 24. Guide rod; 241. Tooth part 1; 242. Reset part; 25. Reset block; 3. Extrusion plate; 31. Lower pressure rod; 311. Tooth part 2; 32. Connecting seat; 321. Gear 1; 322. Gear 2; 323. Connecting shaft; 33. Mounting plate. DETAILED DESCRIPTION

[0036] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0037] like Figures 1 to 3 As shown, the hydraulic baler for metal scrap provided by the present invention includes a frame 1, an upper platen 111, a compression mechanism, a cleaning mechanism, and a discharge mechanism. The frame 1 includes a horizontally arranged bottom plate 15 and four vertically arranged side plates, each of which forms a rectangular frame. The frame 1 defines a compression chamber for compressing the metal scrap. The upper platen 111 is connected to a hydraulic cylinder 11, which drives the upper platen 111 to rotate relative to the frame 1 and buckle it against the upper end of the compression chamber to prevent the metal scrap from overflowing during the compression process. The compression mechanism squeezes the metal scrap placed in the compression chamber.

[0038] The compression mechanism includes a main pressure assembly and a side pressure assembly. The main pressure assembly includes a main hydraulic cylinder 12 and a main pressure head 121. The main hydraulic cylinder 12 is mounted on the frame 1. The main hydraulic cylinder 12 pushes the main pressure head 121 to move along the length direction of the frame 1 in the compression chamber and compress the metal scrap. The side pressure assembly includes a side hydraulic cylinder 13 and a side pressure head 131. The side hydraulic cylinder 13 is mounted on the frame 1. The side hydraulic cylinder 13 pushes the side pressure head 131 to compress the metal scrap along the width direction of the frame 1 in the compression chamber. After the metal scrap is packaged into regular metal blocks, it is pushed out of the compression chamber by the discharge mechanism. The discharge mechanism includes a drive structure 141 and a discharge push plate 14. The discharge push plate 14 can be an "L"-shaped plate. The drive structure 141 is mounted on the frame 1. The drive end of the drive structure 141 is connected to the discharge push plate 14 and drives the discharge push plate 14 to rotate. When the discharge push plate 14 rotates, the metal blocks are pushed out of the compression chamber.

[0039] like Figure 3 and Figure 4 As shown, the cleaning mechanism is used to cooperate with the compression mechanism during the compression process of the metal scrap, to separate and remove impurities on the metal scrap in a timely manner, and to reduce the impact of impurities on the metal scrap packaging effect during the compression process of the metal scrap. The cleaning mechanism includes a connecting member 21, an elastic member 23, a reset block 25 and a plurality of movable bars 22. A connecting plate 2 is fixed inside the frame 1. The connecting plate 2 is horizontally arranged on the upper side of the bottom plate 15. The main pressure head 121 slides in contact with the connecting plate 2. The connecting member 21 is located between the connecting plate 2 and the bottom plate 15. The connecting member 21 is connected to the bottom plate 15 through an elastic member 23, wherein the elastic member 23 includes but is not limited to a spring and an elastic telescopic rod. A plurality of elastic members 23 can be provided, and each elastic member 23 is evenly arranged between the connecting member 21 and the bottom plate 15. Under the elastic force of the elastic member 23, the upper end face of the elastic member 23 is in contact with the lower end face of the connecting plate 2. The connecting member 21 can be mesh-shaped or frame-shaped, and each movable bar 22 is fixed on the upper end surface of the connecting member 21. The connecting member 21 and each movable bar 22 can be an integrated structure. Each movable bar 22 is evenly spaced along the moving direction of the main pressure head 121, and each movable bar 22 is set to avoid the moving path of the side pressure head 131. A number of connecting grooves are provided on the connecting plate 2, and each connecting groove corresponds to each movable bar 22 one by one in the vertical direction. Each movable bar 22 passes through each connecting groove and extends into the upper side of the connecting plate 2.

[0040] The side of the moving direction when squeezing the metal scrap toward the main ram 121 is the front side, the front end face of the movable bar 22 is a vertical surface, and the rear end face of the movable bar 22 is inclined from bottom to top toward the front side. When the main ram 121 moves forward in contact with the connecting plate 2, the main ram 121 contacts each movable bar 22 in turn and moves downward against the movable bar 22, so that the movable bar 22 is received in the connecting groove. The movable bar 22 moves downward and squeezes the connecting member 21 fixed thereto to move downward as a whole. When the main ram 121 squeezes the movable bar 22 and moves downward, the elastic members 23 on the lower side of the connecting member 21 compress and accumulate force. After the main ram 121 is separated from the movable bar 22, the connecting member 21 bounces upward under the elastic force of the elastic members 23, and drives each movable bar 22 to quickly extend from the connecting groove and strike the metal scrap, thereby promoting the separation of impurities in the metal scrap from the metal scrap. When the main pressure head 121 moves in contact with the connecting plate 2 to extrude the metal waste, the connecting piece 21 and the movable bars 22 are squeezed downward as a whole through the movable bars 22 in turn, so that the metal waste is struck multiple times by the movable bars 22 during the compression process, thereby promoting the full separation of impurities and metal waste, further improving the separation effect of impurities and metal waste, and thereby reducing the impact of impurities on the packaging quality of metal waste during the compression and packaging operation.

[0041] like Figure 6 and Figure 7 As shown, a lower pressing block 122 is further provided on the rear side of the main pressing head 121. When the main pressing head 121 is reset and moves from front to back, the lower pressing block 122 sequentially abuts against each movable bar 22 and presses the movable bar 22 downward. When the main pressing head 121 presses the movable bar 22 downward, the movable bar 22 is prevented from blocking the reset of the main pressing head 121. Specifically, the lower pressing block 122 is connected to the main pressing head 121 via a reset member, which can be an elastic telescopic rod or a combination of a connecting rod and a spring. The rear end face of the lower pressing block 122 moves forward from top to bottom. When the lower pressing block 122 moves rearward with the main pressing head 121, the inclined end of the lower pressing block 122 first contacts the upper end of the rear side face of the movable bar 22. The lower pressing block 122 continues to move backward to squeeze the reset member and accumulate force for the reset member. After the rear end of the main pressing head 121 contacts the front end of the lower pressing block 122, the main pressing head 121 pushes the lower pressing block 122 to move synchronously. The main pressing head 121 squeezes the movable bar 22 and moves down into the connecting groove. The main pressing head 121 passes smoothly through the position where the movable bar 22 is located, avoiding the active bar 22 from affecting the reset action of the main pressing head 121, thereby ensuring the continuous and stable operation of the baling machine.

[0042] The reset block 25 is located at the rear side of each movable bar 22. The reset block 25 is fixed to the connecting member 21. A groove for the reset block 25 to pass through is opened on the connecting plate 2. The reset block 25 and the connecting plate 2 slide in the vertical direction. The height of the reset block 25 is greater than the height of each movable bar 22. The front end surface of the reset block 25 is inclined from top to bottom toward the front side. The rear end of the main pressure head 121 is movably abutted against the inclined end of the reset block 25. When the main pressure head 121 slides in contact with the reset block 25, it pushes the reset block 25 downward. When the reset block 25 is squeezed until the upper end is flush with the upper surface of the connecting plate 2, each movable bar 22 fully enters the connecting groove, and a gap is generated between the movable bar 22 and the connecting groove, that is, the upper space of the connecting plate 2 is connected to the lower space of the connecting plate 2 through the connecting groove. Impurities knocked off by the movable bar 22 fall along the inclined side of the movable bar 22 into the lower space of the connecting plate 2 for collection. The connecting member 21 is configured as a mesh plate or frame structure, which can effectively prevent impurities from falling on the upper side of the connecting member 21.

[0043] When the movable bar 22 strikes the metal scrap, impurities fall onto the connecting plate 2. To further ensure that the impurities fall smoothly through the gap between the movable bar 22 and the connecting groove, the rear side of the connecting groove is formed into a guide portion 221 that decreases in height from back to front. When the main pressure head 121 slides against the connecting plate 2, the fallen impurities are pushed to the position of the guide portion 221. When the main pressure head 121 is reset, it pushes the reset block 25 downward on the rear side of each movable bar 22. The depth of each movable bar 22 downward relative to the connecting groove increases, and a gap is formed between the inclined side of the movable bar 22 and the connecting groove. Impurities accumulated at the guide portion 221 slide along the inclined direction of the guide portion 221 into the connecting groove and further into the space below the connecting plate 2. A movable plate that is detachably connected to the bottom plate 15 and the connecting plate 2 can be set between the bottom plate 15 and the connecting plate 2 to facilitate staff to regularly remove the movable plate and clean impurities between the connecting plate 2 and the bottom plate 15.

[0044] The provision of each movable bar 22 can also promote changes in the contact position between the metal scrap and the main pressure head 121 and the side panels of the frame 1. When compressing some construction metal scrap, the hardness angle of the steel bars in the construction metal scrap is affected. If the main pressure head 121 squeezes the metal scrap, the end of the steel bar directly contacts the main pressure head 121, which will exert great pressure on the main pressure head 121. Long-term operation will cause more serious local wear on the main pressure head 121 and accelerate the aging of the main pressure head 121. Each movable bar 22 strikes the metal scrap at intervals. In addition to promoting the separation of impurities, it also promotes the change of angle of the steel bar or other hard metal parts in the compression chamber during the striking process, continuously changing the contact position between the metal scrap and the main pressure head 121, reducing the local pressure on the main pressure head 121 during the compression process, and extending the service life of the main pressure head 121.

[0045] When the lower pressing plate is rotated and buckled onto the upper end of the compression chamber, a gap will inevitably form between the lower pressing plate and the side plate on the front side of the compression chamber. When the metal scrap is squeezed, some of the metal scrap is squeezed into the gap between the lower pressing plate and the front side plate, causing burrs on the final metal block. The presence of burrs will affect the stacking and transportation of the metal blocks. The frame 1 is also provided with a pressing mechanism for processing the burrs on the metal blocks.

[0046] like Figures 3 to 5 As shown, the pressing mechanism includes an extrusion plate 3, a pressing rod 31 and a transmission assembly. The pressing rod 31 is vertically arranged, and the extrusion plate 3 is connected to the upper end of the pressing rod 31. The pressing rod 31 is elastically connected to the frame 1 in the vertical direction. The pressing rod 31 can be connected to the frame 1 through a spring or an elastic telescopic rod. When the pressing rod 31 moves downward, it squeezes the spring or elastic telescopic rod connected to it and accumulates force. The transmission assembly pushes the extrusion plate 3 to move downward in the gap between the front side plate of the frame 1 and the main pressure head 121, and squeezes the metal scrap entering between the front side plate of the frame 1 and the main pressure head 121.

[0047] A guide rod 24 is fixed to the connecting member 21 and is parallel to the lower pressure rod 31. The transmission assembly includes a mounting plate 33, a connecting base 32, a connecting shaft 323, a first gear 321, and a second gear 322. The mounting plate 33 is fixed to the front side of the frame 1. The connecting base 32 is elastically connected to the mounting plate 33 in the horizontal direction. The connecting shaft 323 is rotatably assembled on the connecting base 32. Gear 1 321 is unidirectionally connected to the connecting shaft 323, and gear 2 322 is fixed to the connecting shaft 323 and unidirectionally connected to the connecting base 32. Specifically, gear 1 321 is connected to the connecting shaft 323 via a one-way bearing, and gear 2 322 is connected to the connecting base 32 via a one-way bearing. A tooth portion 1 241 is provided on the guide rod 24, and a tooth portion 2 311 is provided on the lower pressure rod 31. Gear 1 321 meshes with tooth portion 1 241, and gear 2 322 meshes with tooth portion 2 311.

[0048] When squeezing the scrap metal, the hydraulic cylinder 11 connected to the upper platen 111 pushes the upper platen 111 to rotate and buckle onto the upper end of the compression chamber. The main hydraulic cylinder 12 then drives the main ram 121 to move within the compression chamber and squeeze the scrap metal therein. The main ram 121 squeezes the movable bars 22 downward at intervals, and drives the connector 21 downward at intervals. The guide rod 24 moves up and down synchronously with the connector 21. When the guide rod 24 moves downward, gear 1 321 rotates under the meshing action with tooth 1 241, driving the connecting shaft 323 to rotate synchronously. Gear 2 322 rotates with the connecting shaft 323. When gear 2 322 rotates, it pushes the lower platen 31 downward. When the lower platen 31 moves downward, it pushes the squeezing plate 3 into the gap between the upper platen 111 and the frame 1 and squeezes the scrap metal therein, preventing burrs from forming between the frame 1 and the upper platen 111 when the scrap metal is compressed.

[0049] When the connecting member 21 is reset and moved upward under the action of the elastic member 23, the gear 1 321 rotates in the other direction under the action of the meshing with the tooth portion 1 241. Under the action of the one-way bearing, the connecting shaft 323 does not rotate with the gear 1 321, and the positions of the guide rod 24 and the extrusion plate 3 do not change. That is, in the process of the main pressure head 121 extruding the metal waste, the extrusion plate 3 moves downward at intervals to extrude the metal waste in the gap between the frame 1 and the lower pressure plate.

[0050] In the initial state, the extrusion plate 3 is located on the upper side of the front side panel of the frame 1. In order to prevent the extrusion plate 3 from interfering with the action of the lower pressure plate buckled on the upper end of the compression chamber, the upper end of the inner side of the front side panel is tilted from top to bottom toward the rear side, and when the extrusion plate 3 moves downward, the inclined section of the side panel moves downward. The extrusion plate 3 is elastically connected to the lower pressure rod 31 in the horizontal direction. The extrusion plate 3 can be connected to the lower pressure rod 31 by a tension spring, so that when the extrusion plate 3 slides against the inner wall of the front side panel of the frame 1, the extrusion plate 3 moves away from the lower pressure rod 31 in the horizontal direction and stretches the tension spring to store force. In order to further enhance the strength of the extrusion plate 3 in extruding the metal scrap and the stability of the downward movement, the lower pressure rod 31, the guide rod 24 and the transmission assembly are each provided with two groups, and the two lower pressure rods 31 are connected to the extrusion plate 3 at the same time.

[0051] As the lower pressure rod 31 moves downward, it continuously compresses the spring connected to it to accumulate force. To ensure that the extrusion plate 3 can be smoothly reset after the metal scrap is squeezed, the upper end of the guide rod 24 is also provided with a reset portion 242. The reset portion 242 has an inclined surface opposite to the gear 1 321, and the inclined surface is tilted backward from top to bottom. When the main ram 121 compresses the reset block 25 downward, the guide rod 24 moves downward until the reset portion 242 abuts the gear 1 321. The gear 1 321 compresses the entire connecting seat 32 toward the mounting plate 33, and at the same time, the gear 2 322 disengages from the gear 2 311. The lower pressure rod 31 is reset under the elastic force of the spring, and the extrusion plate 3 is driven upward and reset. After the extrusion plate 3 is reset, it automatically adheres to the upper end of the lower pressure rod 31 under the action of the tension spring.

[0052] The hydraulic baler for metal scrap provided by the present invention effectively promotes the separation of impurities from metal scrap during the baling process, and promotes the change of the angle of the metal in the compression chamber during the extrusion process, thereby improving the compression effect of the metal scrap and reducing the wear on the side wall of the compression chamber and the main pressure head during the compression process, thereby extending the service life of the baler.

[0053] Although the embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A hydraulic baler for metal scrap, comprising a frame, an upper pressure plate, and a compression mechanism disposed within the frame, wherein the frame comprises a horizontally disposed bottom plate and a plurality of vertically disposed side plates, the compression mechanism hydraulically comprising a main pressure assembly and a side pressure assembly, the main pressure assembly comprising a main hydraulic cylinder and a main pressure head, characterized in that: The cam is secured to the bottom of the frame and has a plurality of movable members, each of which is engageable with the bottom plate and engages with the bottom plate, the engage member being engageable with the bottom plate and engages with the top plate and the bottom plate.

2. The hydraulic baler for metal scrap according to claim 1, characterized in that: The lower pressing block is connected to the main pressing head through a reset member. The rear end surface of the lower pressing block is inclined forward from top to bottom, and the inclined surface end of the lower pressing block is movably abutted against the movable bar.

3. The hydraulic baler for metal scrap according to claim 1, characterized in that: The rear side surface of the connecting groove is inclined right back to the front and downward to form a guide portion.

4. The hydraulic baler for metal scrap according to claim 1, characterized in that: The front end surface of the reset block is inclined from bottom to top toward the rear side, and the rear end of the main pressure head is movably in contact with the front end surface of the reset block.

5. The hydraulic baler for metal scrap according to claim 1, characterized in that: The frame is also provided with a downward pressing mechanism, which includes an extrusion plate, a downward pressing rod and a transmission assembly. The downward pressing rod is vertically arranged, the extrusion plate is connected to the upper end of the downward pressing rod, and the downward pressing rod is elastically connected to the frame in the vertical direction. The transmission assembly pushes the extrusion plate to move downward in the gap between the front side plate of the frame and the main pressure head.

6. The hydraulic baler for metal scrap according to claim 5, characterized in that: A guide rod is fixed on the connecting member, and the guide rod is parallel to the lower pressure rod. The transmission assembly includes a mounting plate, a connecting seat, a connecting shaft, gear 1 and gear 2. The mounting plate is fixed on the front side of the frame, and the connecting seat is elastically connected to the mounting plate in the horizontal direction. The connecting shaft is rotatably assembled on the connecting seat, and the gear 1 is unidirectionally connected to the connecting shaft. The gear 2 is fixed to the connecting shaft and unidirectionally connected to the connecting seat. A tooth portion 1 is provided on the guide rod, and a tooth portion 2 is provided on the lower pressure rod. The gear 1 is meshed with the tooth portion 1, and the gear 2 is meshed with the tooth portion 2.

7. The hydraulic baler for metal scrap according to claim 6, characterized in that: A reset portion is provided at the upper end of the guide rod, and the reset portion is inclined rearward from top to bottom. When the main pressure head squeezes the reset block and moves it completely downward, the reset portion abuts against the gear one and pushes the gear one to move forward.

8. The hydraulic baler for metal scrap according to claim 6, characterized in that: The upper end of the inner side of the front side panel is inclined from top to bottom toward the rear side, and when the extrusion plate moves downward, the inclined section of the side panel moves downward, and the extrusion plate is elastically connected to the lower pressing rod in the horizontal direction.

9. The hydraulic baler for metal scrap according to claim 1, characterized in that: The side pressure assembly includes a side pressure head and a side hydraulic cylinder. The protruding end of the side hydraulic cylinder is fixed to the side pressure head, and each of the movable bars avoids the moving space of the side pressure head.

10. The hydraulic baler for metal scrap according to claim 1, characterized in that: The frame is also provided with a discharging mechanism, which includes a driving structure and a discharging push plate, and the driving structure drives the discharging push plate to rotate.

Images