Die for automatic blanking of plates

Abstract

The invention discloses a die for automatic blanking of plates, a plurality of grooves are concavely formed in a lower pressing die, an upper pressing die is hinged to the lower pressing die, and the upper pressing die is provided with an ejector block; the plurality of positioning frames are arranged on the outer sides of the corresponding grooves; the working degree end faces of the multiple roller sets are flush with the top end faces of the corresponding positioning frames. The first rolling brush set is arranged on the front section of the lower pressing die, and the action end face of the first rolling brush set is higher than the working end face of the roller set located on the front section of the lower pressing die. The second rolling brush group is arranged at the middle section of the lower pressing die; the action end surface of the first rolling brush group is flush with the working end surface of the roller group positioned at the middle section of the lower pressing die; the third rolling brush set is arranged at the tail section of the lower pressing die, and the action end face of the first rolling brush set is higher than the working end face of the roller set located at the tail section of the lower pressing die; the two blowing assemblies are symmetrically arranged at the front end and the rear end of the lower pressing die, the working paths of the two blowing assemblies and the upper end face and the lower end face of the plate form included angles, the risk that the ends of the plate are scratched is avoided, and meanwhile stable conveying of the plate is guaranteed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of molds, in particular to a mold for automatic cutting and blanking of sheet metal. BACKGROUND

[0002] Punching process, generally refers to the use of punch and die on plate, strip, pipe and profile and other external force, so that it produces plastic deformation or separation, so as to obtain the desired shape and size of the workpiece forming processing method; When the metal plate is punched, the workpiece is usually cut before punching, which meets the use requirements of subsequent punching.

[0003] In the prior art, the to-be-cut plate is conveyed to the working chamber of the cutting die by the external driving wheel. During the conveying of the plate, the circumferential surface of the roller at the conveying end and the front section of the cutting die is sheared with the front and rear ends of the to-be-cut plate, and the circumferential part of the cut plate is attached with burrs or debris, so that the circumferential surface of the conveying roller in the cutting die is also covered with debris, and the circumferential surface of the plate conveyed into the cutting die is scratched, so that the cut plate cannot meet the use requirements of subsequent punching.

[0004] Therefore, there is an urgent need for a mold for automatic blanking of sheet metal to solve the above problems. SUMMARY

[0005] The embodiment of the present application provides a mold for automatic blanking of sheet metal, which aims to avoid scratching the circumferential surface of the plate conveyed into the cutting die, while meeting the use requirements of the cut plate for subsequent punching.

[0006] To achieve the above purpose, the present application provides the following technical scheme: A mold for automatic blanking of sheet metal, characterized in that it comprises an upper die, a lower die, a plurality of positioning frames, a plurality of roller groups, a first roller brush group, a second roller brush group, a third roller brush group and two groups of blowing assemblies; The top of the lower die is concave and has a plurality of grooves for cutting plates, and the bottom of the lower die is fixedly connected with the working rack; One side of the upper die is hinged to the lower die, and the bottom of the upper die is fixedly provided with a top block corresponding to the groove; A plurality of positioning frames are arranged outside the corresponding grooves; A plurality of roller groups are arranged along the sheet metal feeding direction of the lower die and located at the circumferential part of the positioning frame, and the working end face of the plurality of roller groups is flush with the top end face of the corresponding positioning frame; The first roller brush group is arranged at the front section of the lower die, and the working end face of the first roller brush group is higher than the working end face of the roller group located at the front section of the lower die; The second roller brush group is arranged at the middle section of the lower pressing die, and the working end surface of the first roller brush group is flush with the working end surface of the roller group at the middle section of the lower pressing die; The third roller brush group is arranged at the tail section of the lower pressing die, and the working end surface of the first roller brush group is higher than the working end surface of the roller group at the tail section of the lower pressing die; The two groups of sweeping assemblies with consistent structures are fixedly arranged at the front and tail ends of the lower pressing die, the two groups of sweeping assemblies are symmetrically arranged at the front and rear ends of the lower pressing die, and the working paths of the two groups of sweeping assemblies are arranged at an angle with the upper and lower end surfaces of the plate.

[0007] Further, the roller group comprises a fixing frame, a plurality of bearings and a plurality of rollers; The fixing frame has a whole rectangular structure, and the fixing frame surrounds the outside of the positioning frame; A plurality of bearings are fixedly arranged on the inside of the fixing frame; A plurality of rollers are fixedly arranged on the corresponding bearings and form a rotating fit.

[0008] Further, the first roller brush group comprises a first fixing frame, a first mounting frame, a first limiting plate, a first screw rod, a first fixed rod and a first roller brush wheel; The peripheral part of the first fixing frame is fixedly connected to the side of the positioning frame away from the groove at the front section of the lower pressing die; The first mounting frame is slidingly arranged inside the first fixing frame, the bottom of the first mounting frame is fixedly connected to the first limiting plate, the top of the first mounting frame extends upward, and the whole structure is a groove structure with a notch facing the upper pressing die; The first limiting plate is movably arranged around the first mounting frame and moves up and down along the height direction of the first mounting frame; One end of the first screw rod extends along the height direction of the first mounting frame through the first limiting plate, and the other end extends vertically downward; The first fixed rod is fixedly arranged at the top of the first mounting frame, and the rod length direction of the first fixed rod is consistent with the groove width direction of the first mounting frame; The first roller brush wheel is rotatably arranged around the fixed rod, and the top end surface of the first roller brush wheel is higher than the top end surface of the roller at the front section of the lower pressing die.

[0009] Further, the second roller brush group comprises a second fixing frame, a second mounting frame, a second fixed rod and a second roller brush wheel; The peripheral part of the second fixing frame is fixedly connected to the side of the positioning frame away from the groove at the middle section of the lower pressing die; The second mounting frame is fixedly arranged in the interior of the second fixed frame, and the overall structure of the first mounting frame is a groove structure with a notch facing the upper compression mold; The second fixed rod is fixedly arranged at the top of the second mounting frame, The second rolling brush wheel is rotatably arranged at the circumferential portion of the fixed rod, and the top end surface of the second rolling brush wheel is flush with the top end surface of the rolling wheel located at the front section of the lower compression mold.

[0010] Further, the third rolling brush group comprises a third fixed frame, a third mounting frame, a second limiting plate, a third screw rod, a third fixed rod and a third rolling brush wheel; The circumferential portion of the third fixed frame is fixedly connected to the side of the positioning frame located at the tail section of the lower compression mold and away from the groove; The third mounting frame is slidably arranged in the interior of the third fixed frame, the bottom of the third mounting frame is fixedly connected to the second limiting plate, the top of the third mounting frame extends upward, and the overall structure of the third mounting frame is a groove structure with a notch facing the upper compression mold; The second limiting plate is movably arranged at the circumferential portion of the third mounting frame and is displaced up and down along the height direction of the third mounting frame; One end of the third screw rod extends along the height direction of the third mounting frame through the second limiting plate, and the other end extends vertically downward; The third fixed rod is fixedly arranged at the top of the third mounting frame, and the rod length direction of the third fixed rod is consistent with the groove width direction of the third mounting frame; The third rolling brush wheel is rotatably arranged at the circumferential portion of the fixed rod, and the top end surface of the third rolling brush wheel is higher than the top end surface of the rolling wheel located at the tail section of the lower compression mold and is lower than the top end surface of the first rolling brush wheel.

[0011] Further, the blowing assembly comprises a mounting frame, a transmission rod, a first sliding block, a second sliding block, two air pipes and a transmission motor; The mounting frame in a rectangular structure is fixedly arranged below the front and rear ends of the lower compression mold, and the length direction of the mounting frame is consistent with the width direction of the lower compression mold; The transmission rod is fixedly arranged at the middle portion of the corresponding mounting frame, the rod length direction of the transmission rod is consistent with the width direction of the lower compression mold, and one end of the transmission rod extends horizontally out of the exterior of the mounting frame; The first sliding block is arranged in the interior of the two mounting frames and is threadedly connected to the circumferential portion of the corresponding transmission rod, a first air hole is formed in the side end surface of the first sliding block close to the plate, and the hole length direction of the first air hole is arranged at an angle with the conveying direction of the plate; The second slider is arranged in the interior of the mounting frame and is arranged in space with the first slider, the second slider is in thread transmission with the circumferential part of the corresponding transmission rod, the second slider is provided with a second air hole in the side end face close to the plate, the hole length direction of the second air hole is arranged in an angle with the conveying direction of the plate, The output ends of the two air pipes are respectively communicated with the air inlets of the first slider and the second slider, and the input ends of the two air pipes are communicated with the output end of the external air source. The output shaft of the transmission motor is in abutment with the end of the transmission rod away from the mounting frame, and forms a screw rod transmission.

[0012] Further, the interior of the first slider is provided with a first threaded hole, and the interior of the second slider is provided with a second threaded hole, the thread direction of the first threaded hole is opposite to the thread direction of the second threaded hole.

[0013] The one or more technical solutions provided in the embodiment of the application have at least the following technical effects or advantages: In the application, the top block of the upper pressing die is matched with the groove of the lower pressing die, and the top block and the groove realize accurate shearing of the plate in the embedding and fitting process. The flush arrangement of the positioning frame and the roller group ensures the stability of plate conveying. The first roller brush group is arranged at a high position, so that the plate can be actively received when entering the lower pressing die, avoiding the end surface of the plate being sheared by the roller group due to the height difference between the plate and the roller group located in the front section of the lower pressing die, which causes the plate to be damaged by scratching, and the dust and debris adhered to the plate during transportation are actively cleaned; the second roller brush group is flush with the roller group located in the middle section of the lower pressing die, and continuously cleans the contact surface of the plate and the roller group located in the middle section of the lower pressing die; the third roller brush group is higher than the second roller brush group and lower than the second roller brush group, which not only lifts the part of the plate located at the tail end of the lower pressing die, but also cleans it. The sweeping assembly is arranged symmetrically front and back and the inclined air holes are designed to form an upper and lower cross air curtain to cover the upper and lower surfaces of the plate, effectively removing residual dust. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the following will briefly introduce the drawings needed to be used in the description of the embodiments of the application or the prior art. Obviously, the drawings in the following description are some embodiments of the application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0015] Figure 1 The assembly diagram of the upper pressing die and the lower pressing die when working is provided for the embodiments of the application; Figure 2 The structure schematic diagram of the lower pressing die in the top view state is provided for the embodiments of the application; Figure 3 for Figure 2 A magnified view of a portion of region A in the middle; Figure 4 This is a schematic diagram of the assembly of the front or rear section of the pressing mold with the first roller brush group, the third roller brush group, and the purging assembly provided in the embodiments of this application. Figure 5 This is a schematic diagram of the structure of the first roller brush assembly provided in an embodiment of this application; Figure 6 A schematic diagram of the structure of the third roller brush group provided in this application embodiment; Figure 7 This is a schematic diagram of the structure of the second roller brush assembly provided in an embodiment of this application; Figure 8 for Figure 4 A magnified view of a portion of region B in the middle.

[0016] Icons: 10-Upper mold; 101-Top block; 20-Lower mold; 201-Groove; 21-Positioning frame; 30-Roller assembly; 31-Fixing frame; 32-Bearing; 33-Roller; 40-First roller brush assembly; 41-First fixing frame; 42-First mounting frame; 43-First limiting plate; 44-First screw; 45-First fixing rod; 46-First roller brush wheel; 50-Second roller brush assembly; 51-Second fixing frame; 52- Second mounting bracket; 53-Second fixing rod; 54-Second roller brush wheel; 60-Third roller brush assembly; 61-Third fixing frame; 62-Third mounting bracket; 63-Second limiting plate; 64-Third screw; 65-Third fixing rod; 66-Third roller brush wheel; 70-Blowing assembly; 71-Mounting frame; 72-Transmission rod; 73-First slider; 731-First air hole; 74-Second slider; 741-Second air hole; 75-Air pipe. Detailed Implementation

[0017] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0018] In the description of the embodiments of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. The terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance. In addition, the terms "mounting", "connecting", "connecting" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integral connection; it can be mechanical connection, or electrical connection; it can be direct connection, or indirect connection through an intermediate medium, or communication between two elements. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0019] In combination Figures 1-8 As shown in the drawings, a die for automatic blanking of sheet metal includes an upper die 10, a lower die 20, a plurality of positioning frames 21, a plurality of roller groups 30, a first roller brush group 40, a second roller brush group 50, a third roller brush group 60, and two sets of blowing assemblies 70. The top of the lower die 20 is recessed with a plurality of grooves 201 for cutting sheet parts, and the bottom of the lower die 20 is fixedly connected with a working rack. One side edge of the upper die 10 is hingedly connected with the lower die 20, and the bottom of the upper die 10 is fixedly provided with a top block 101 corresponding to the grooves 201. The plurality of positioning frames 21 are arranged outside the corresponding grooves 201. The plurality of roller groups 30 are arranged along the sheet metal feeding direction of the lower die 20 and located at the periphery of the positioning frames 21, and the working end faces of the plurality of roller groups 30 are flush with the top end faces of the corresponding positioning frames 21. The first roller brush group 40 is arranged at the front section of the lower die 20, and the working end face of the first roller brush group 40 is higher than the working end face of the roller group 30 located at the front section of the lower die 20. The second roller brush group 50 is arranged at the middle section of the lower die 20, and the working end face of the first roller brush group 40 is flush with the working end face of the roller group 30 located at the middle section of the lower die 20. The third roller brush group 60 is arranged at the tail section of the lower die 20, and the working end face of the first roller brush group 40 is higher than the working end face of the roller group 30 located at the tail section of the lower die 20. The two sets of blowing assemblies 70 are fixedly arranged at the front and tail ends of the lower die 20, and the two sets of blowing assemblies 70 are symmetrically arranged at the front and rear ends of the lower die 20, and the working paths of the two sets of blowing assemblies 70 are arranged at an angle with the upper and lower end faces of the sheet.

[0020] In the above scheme, the external conveying device sends the sheet metal into the lower die 20. The sheet metal first passes through the first roller brush group 40, and the high design can pre-clean the large particle impurities or dust on the upper surface of the sheet metal. The sheet metal then enters the conveying platform composed of a plurality of roller groups 30.

[0021] After the plate is transported to the target position, the edges of the plate are limited by the positioning frame 21, ensuring the accuracy of the cutting position. During the plate transportation process, the second roller brush group 50 starts to work. Since it is flush with the roller group 30 at the middle position, it sweeps the lower part of the plate and sweeps the small debris that may exist or fall from the first roller brush group 40 to the two sides. At the same time, the blowing assembly 70 is continuously started. Since its working path is arranged at an angle with the upper and lower end faces of the plate, the inclined blowing can generate a force to blow the debris away from the plate, preventing the debris from repeatedly flying and remaining in the mold.

[0022] When the plate is completely transported into the lower pressing mold 20, the blowing assembly 70 is continuously closed, and the upper pressing mold 10 and the lower pressing mold 20 start to press and cut the plate.

[0023] After the cutting is completed, the upper pressing mold 10 is lifted. The third roller brush group 60 starts to work. Its high design can perform the final cleaning on the upper surface of the workpiece after cutting, removing all dust and small debris that may be attached, and ensuring the cleanliness of the discharged workpiece. At the same time, the blowing assembly 70 works again to completely blow the new debris generated during the cutting process and the debris swept up by the roller brush out of the mold area. The cleaned workpiece is automatically sent out of the mold by the subsequent roller group 30 or external conveying device, completing the entire automatic discharging process, thereby avoiding scratches on the surface of the plate transported into the cutting mold, and meeting the use requirements of the plate after cutting for subsequent stamping.

[0024] The roller group 30 comprises a fixed frame 31, a plurality of bearings 32, and a plurality of rollers 33. The fixed frame 31 is in a rectangular structure, and the fixed frame 31 is arranged outside the positioning frame 21. The plurality of bearings 32 are fixedly arranged on the inner side of the fixed frame 31. The plurality of rollers 33 are fixedly arranged on the corresponding bearings 32 and form a rotating fit.

[0025] In the above scheme, the fixed frame 31 is arranged outside the positioning frame 21 in a rectangular structure, which can form a stable support frame and ensure the positioning accuracy of the roller group 30 in the plate transportation direction. A plurality of bearings 32 are arranged on the inner side of the fixed frame 31, so that each roller 33 can be independently installed on the corresponding bearing 32, which not only ensures the rotational freedom of each roller 33, but also avoids the linkage interference caused by the coaxial multiple rollers 33. By forming a rotating fit between the roller 33 and the bearing 32, the roller 33 can realize low-resistance rolling when contacting the plate, effectively reducing the friction coefficient of the contact surface between the plate and the roller 33, thereby reducing the generation and adhesion of plate debris.

[0026] The first rolling brush group 40 comprises a first fixed frame 41, a first mounting frame 42, a first limiting plate 43, a first screw rod 44, a first fixed rod 45 and a first rolling brush wheel 46. The peripheral part of the first fixed frame 41 is fixedly connected with the side of the positioning frame 21 away from the recess 201 at the front section of the lower pressing die 20. The first mounting frame 42 is slidingly arranged in the interior of the first fixed frame 41. The bottom of the first mounting frame 42 is fixedly connected with the first limiting plate 43. The top of the first mounting frame 42 extends upward, and the overall structure thereof is in a groove type structure with the notch facing the upper pressing die 10. The first limiting plate 43 is movably arranged at the peripheral part of the first mounting frame 42 and is displaced up and down along the height direction of the first mounting frame 42. One end of the first screw rod 44 extends along the height direction of the first mounting frame 42 through the first limiting plate 43, and the other end thereof extends vertically downward. The first fixed rod 45 is fixedly arranged at the top of the first mounting frame 42. The rod length direction of the first fixed rod 45 is consistent with the groove width direction of the first mounting frame 42. The first rolling brush wheel 46 is rotatably arranged at the peripheral part of the fixed rod, and the top end surface of the first rolling brush wheel 46 is higher than the top end surface of the roller 33 at the front section of the lower pressing die 20.

[0027] In the above scheme, the first fixed frame 41 is fixedly connected with the side of the positioning frame 21 to form a stable support base. The first mounting frame 42 in the groove type structure provides assembly space while maintaining structural compactness. The first limiting plate 43 cooperates with the screw rod to form a height adjusting mechanism. The limiting plate is displaced along the height direction of the mounting frame through the rotation of the screw rod, thereby realizing precise control of the working height of the first rolling brush wheel 46. The first fixed rod 45 is arranged along the groove width direction to ensure the installation stability of the first rolling brush wheel 46. The first rolling brush wheel 46 arranged in rotation generates a rotating cleaning action when contacting the plate. Since the top end surface of the first rolling brush wheel 46 is higher than the end surface of the roller 33 at the front section, it not only avoids interfering with the normal conveying of the plate, but also effectively removes the peripheral surface of the end of the plate conveyed by the front section of the lower pressing die 20.

[0028] The second rolling brush group 50 comprises a second fixed frame 51, a second mounting frame 52, a second fixed rod 53 and a second rolling brush wheel 54. The peripheral part of the second fixed frame 51 is fixedly connected with the side of the positioning frame 21 away from the recess 201 at the middle section of the lower pressing die 20. The second mounting frame 52 is fixedly arranged in the interior of the second fixed frame 51. The first mounting frame 42 is in a groove type structure with the notch facing the upper pressing die 10. The second fixed rod 53 is fixedly arranged at the top of the second mounting frame 52. The second rolling brush wheel 54 is rotatably arranged at the peripheral part of the fixed rod, and the top end surface of the second rolling brush wheel 54 is flush with the top end surface of the roller 33 at the front section of the lower pressing die 20.

[0029] In the above scheme, a stable support structure is formed by the fixed connection between the second fixed frame 51 and the middle positioning frame 21 of the lower pressing mold 20, ensuring that the second roller brush group 50 has sufficient installation rigidity in the middle position. The second mounting frame 52 adopts a groove-shaped structure with the groove facing the upper pressing mold 10. The second fixed rod 53 is fixed to the top of the second mounting frame 52, providing the second roller brush wheel 54 with an installation axis perpendicular to the board conveying direction, so that the second roller brush wheel 54 can rotate and clean along the board conveying direction. The top end face of the second roller brush wheel 54 is flush with the top end face of the roller 33, which ensures that the second roller brush wheel 54 maintains appropriate contact pressure with the board surface to remove debris, and avoids hindering the normal conveying of the board due to excessive contact pressure.

[0030] The third roller brush assembly 60 includes a third fixed frame 61, a third mounting bracket 62, a second limiting plate 63, a third screw 64, a third fixing rod 65, and a third roller brush 66. The periphery of the third fixed frame 61 is fixedly connected to the side of the positioning frame 21 located at the tail end of the lower mold 20, away from the groove 201. The third mounting bracket 62 is slidably disposed inside the third fixed frame 61. The bottom of the third mounting bracket 62 is fixedly connected to the second limiting plate 63, and the top of the third mounting bracket 62 extends upwards. Its overall structure is a groove-shaped structure with the slot facing the upper mold 10. The second limiting plate 63 is movable. The third screw 64 is movably disposed around the periphery of the third mounting bracket 62 and moves up and down along the height direction of the third mounting bracket 62; one end of the third screw 64 passes through the second limiting plate 63 and extends along the height direction of the third mounting bracket 62, and the other end extends vertically downward; the third fixing rod 65 is fixedly disposed on the top of the third mounting bracket 62, and the length direction of the third fixing rod 65 is consistent with the width direction of the groove of the third mounting bracket 62; the third roller brush 66 is rotatably disposed around the periphery of the fixing rod, and the top end face of the third roller brush 66 is higher than the top end face of the roller 33 located at the tail section of the lower die 20 and lower than the top end face of the first roller brush 33.

[0031] In the above scheme, the third fixed frame 61 is fixedly connected to the side of the positioning frame 21 to ensure that the roller brush assembly and the groove 201 maintain a precise relative position; the groove-shaped third mounting bracket 62 forms a stable support frame, providing an installation base for the subsequent drive adjustment mechanism. The cooperative design of the second limiting plate 63 and the third screw 64 allows the height of the roller brush wheel to be adjusted vertically along the mounting bracket, ensuring that the roller brush wheel and the tail roller 33 form an appropriate height difference to contact debris, while avoiding excessive pressure on the surface of the board. The length direction of the third fixed rod 65 is consistent with the width direction of the groove, ensuring that the roller brush wheel forms a full-coverage cleaning area in the width direction of the board. The top end face of the third roller brush wheel 66 is higher than the tail roller 33 but lower than the first roller brush wheel 46, so that after the board is cut, the part near the tail of the lower die 20 can be lifted by the third roller brush wheel 66, which adapts to the working height difference of the rollers 33 in different sections, and avoids excessive cleaning force at the tail section affecting the stability of the board conveying.

[0032] The blowing assembly 70 comprises a mounting frame 71, a transmission rod 72, a first sliding block 73, a second sliding block 74, two air pipes 75 and a transmission motor 76; the rectangular mounting frame 71 is fixedly installed below the front and rear ends of the lower pressing die 20, and the length direction of the mounting frame 71 is consistent with the width direction of the lower pressing die 20; the transmission rod 72 is fixedly arranged at the middle part of the corresponding mounting frame 71, the rod length direction of the transmission rod 72 is consistent with the width direction of the lower pressing die 20, and one end of the transmission rod 72 horizontally extends outside the mounting frame 71; the first sliding block 73 is arranged inside the two mounting frames 71 and is threadedly connected with the peripheral part of the corresponding transmission rod 72, a first air hole 731 is arranged on the side end face close to the plate of the first sliding block 73, and the hole length direction of the first air hole 731 is arranged at an angle with the conveying direction of the plate; the second sliding block 74 is arranged inside the mounting frame 71 and is arranged at intervals with the first sliding block 73, the second sliding block 74 is threadedly connected with the peripheral part of the corresponding transmission rod 72, a second air hole 741 is arranged on the side end face close to the plate of the second sliding block 74, and the hole length direction of the second air hole 741 is arranged at an angle with the conveying direction of the plate, the output ends of the two air pipes 75 are respectively connected with the air inlets of the first sliding block 73 and the second sliding block 74, and the input ends of the two air pipes 75 are in communication with the output end of an external air source; the output shaft of the transmission motor is in abutment with the end of the transmission rod 72 away from the mounting frame 71, and forms a screw rod transmission.

[0033] In the above scheme, the blowing assembly 70 is symmetrically arranged on the upper and lower sides of the front and rear ends of the lower pressing die 20 through the mounting frame 71, covers the whole area of the plate conveying path, and ensures the comprehensiveness of the debris removal. The transmission rod 72 extends along the width direction of the lower pressing die 20 and is fixed with the mounting frame 71, is driven by the transmission motor to drive the screw rod transmission, drives the first sliding block 73 and the second sliding block 74 to move synchronously in the mounting frame 71, and realizes dynamic adjustment of the blowing range. The first air hole 731 and the second air hole 741 are arranged at an angle with the conveying direction of the plate, so that the airflow direction intersects with the plate motion track, and the debris stripping effect is enhanced. The first sliding block 73 and the second sliding block 74 are respectively connected with independent air pipes 75, high-pressure airflow is provided by an external air source, double-channel blowing is formed, and the debris removal efficiency is improved.

[0034] The first sliding block 73 is internally provided with a first threaded hole, the second sliding block 74 is internally provided with a second threaded hole, and the thread direction of the first threaded hole is opposite to the thread direction of the second threaded hole.

[0035] In the above scheme, the first threaded hole and the second threaded hole adopt opposite thread directions, so that when the transmission rod 72 rotates, the first slider 73 and the second slider 74 generate synchronous displacement in opposite directions in the mounting frame 71. The first slider 73 and the second slider 74 form complementary displacement tracks during movement, thereby expanding the coverage range of the air holes on the upper and lower end faces of the plate. The first air hole 731 and the second air hole 741 form a cross-blowing path during staggered movement, effectively removing metal chips generated at the contact position of the roller set 30 and the plate, preventing the accumulation of chips at the front and rear ends of the mold.

[0036] The various embodiments in the specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on the difference from other embodiments.

[0037] The above examples are only used to illustrate the technical solutions of the present application, and are not limited to the present application. Although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that the technical solutions recorded in the foregoing examples can still be modified, or some or all of the technical features can be replaced by equivalents. The modification or replacement does not make the essence of the corresponding technical solution deviate from the scope of the technical solutions of the present application.

Claims

1. A mold for automatic sheet metal feeding, characterized in that, It includes an upper pressure mold (10), a lower pressure mold (20), multiple positioning frames (21), multiple roller groups (30), a first roller brush group (40), a second roller brush group (50), a third roller brush group (60), and two sets of purging components (70). The top of the pressing die (20) is provided with a plurality of grooves (201) for cutting the plate, and the bottom of the pressing die (20) is fixedly connected to the work frame; One side of the upper die (10) is hinged to the lower die (20), and a top block (101) corresponding to the groove (201) is fixedly provided at the bottom of the upper die (10). Multiple positioning frames (21) are arranged on the outside of the corresponding grooves (201); Multiple roller sets (30) are arranged along the sheet material feeding direction of the lower die (20) and located around the positioning frame (21). The working end face of the multiple roller sets (30) is flush with the top end face of the corresponding positioning frame (21). The first roller brush group (40) is disposed at the front section of the lower pressing mold (20), and the working end face of the first roller brush group (40) is higher than the working end face of the roller group (30) located at the front section of the lower pressing mold (20); The second roller brush group (50) is disposed in the middle section of the lower pressing mold (20), and the moving end face of the first roller brush group (40) is flush with the working end face of the roller group (30) located in the middle section of the lower pressing mold (20); The third roller brush group (60) is disposed at the tail section of the lower pressing mold (20), and the working end face of the first roller brush group (40) is higher than the working end face of the roller group (30) located at the tail section of the lower pressing mold (20). Two sets of identical blowing assemblies (70) are fixedly installed at the front and rear ends of the lower pressing mold (20). The two sets of blowing assemblies (70) are symmetrically arranged at the front and rear ends of the lower pressing mold (20), and the working paths of the two sets of blowing assemblies (70) are set at an angle to the upper and lower end faces of the plate.

2. The automatic sheet metal feeding mold according to claim 1, characterized in that, The roller assembly (30) includes a fixed frame (31), multiple bearings (32) and multiple rollers (33); The fixing frame (31) is rectangular in shape and is arranged around the outside of the positioning frame (21); Multiple bearings (32) are fixedly disposed on the inner side of the fixing frame (31); The multiple rollers (33) are fixedly mounted on the corresponding bearings (32) and form a rotational fit.

3. The automatic sheet metal feeding mold according to claim 1, characterized in that, The first roller brush assembly (40) includes a first fixed frame (41), a first mounting bracket (42), a first limiting plate (43), a first screw (44), a first fixing rod (45), and a first roller brush wheel (46). The periphery of the first fixing frame (41) is fixedly connected to the side of the positioning frame (21) located at the front end of the lower mold (20) away from the groove (201); The first mounting bracket (42) is slidably disposed inside the first fixed frame (41). The bottom of the first mounting bracket (42) is fixedly connected to the first limiting plate (43). The top of the first mounting bracket (42) extends upward, and its overall structure is a groove-shaped structure with the slot facing the upper mold (10). The first limiting plate (43) is movably disposed on the periphery of the first mounting bracket (42) and moves up and down along the height direction of the first mounting bracket (42); One end of the first screw (44) passes through the first limiting plate (43) and extends along the height direction of the first mounting bracket (42), while the other end extends vertically downward. The first fixing rod (45) is fixedly installed on the top of the first mounting bracket (42), and the length direction of the first fixing rod (45) is consistent with the width direction of the groove of the first mounting bracket (42); The first roller brush (46) is rotatably disposed around the periphery of the fixed rod, and the top end face of the first roller brush (46) is higher than the top end face of the roller (33) located at the front end of the lower die (20).

4. The automatic sheet metal feeding mold according to claim 1, characterized in that, The second roller brush assembly (50) includes a second fixed frame (51), a second mounting bracket (52), a second fixed rod (53), and a second roller brush wheel (54); The periphery of the second fixing frame (51) is fixedly connected to the side of the positioning frame (21) located in the middle section of the lower mold (20) away from the groove (201); The second mounting bracket (52) is fixedly installed inside the second fixed frame (51), and the top of the first mounting bracket (42) has a groove-shaped structure with the slot facing the upper mold (10); The second fixing rod (53) is fixedly installed on the top of the second mounting bracket (52). The second roller brush (54) is rotatably disposed around the periphery of the fixed rod, and the top end face of the second roller brush (54) is flush with the top end face of the roller (33) located in the front section of the lower die (20).

5. The automatic sheet metal feeding mold according to claim 1, characterized in that, The third roller brush assembly (60) includes a third fixed frame (61), a third mounting bracket (62), a second limiting plate (63), a third screw (64), a third fixing rod (65), and a third roller brush wheel (66). The periphery of the third fixing frame (61) is fixedly connected to the side of the positioning frame (21) located at the tail end of the lower die (20) away from the groove (201); The third mounting bracket (62) is slidably disposed inside the third fixed frame (61). The bottom of the third mounting bracket (62) is fixedly connected to the second limiting plate (63). The top of the third mounting bracket (62) extends upward, and its overall structure is a groove-shaped structure with the slot facing the upper mold (10). The second limiting plate (63) is movably disposed on the periphery of the third mounting bracket (62) and moves up and down along the height direction of the third mounting bracket (62); One end of the third screw (64) passes through the second limiting plate (63) and extends along the height direction of the third mounting bracket (62), while the other end extends vertically downward. The third fixing rod (65) is fixedly installed on the top of the third mounting bracket (62), and the length direction of the third fixing rod (65) is consistent with the width direction of the groove of the third mounting bracket (62); The third roller brush (66) is rotatably disposed around the periphery of the fixed rod. The top end face of the third roller brush (66) is higher than the top end face of the roller (33) located at the tail end of the lower die (20) and lower than the top end face of the first roller brush (33).

6. The automatic sheet metal feeding mold according to claim 1, characterized in that, The purging assembly (70) includes a mounting frame (71), a transmission rod (72), a first slider (73), a second slider (74), two air pipes (75), and a transmission motor (76). The rectangular mounting frame (71) is fixedly installed below the front and rear ends of the lower pressing mold (20), and the length direction of the mounting frame (71) is consistent with the width direction of the lower pressing mold (20); The transmission rod (72) is fixedly installed in the middle of the corresponding mounting frame (71). The length direction of the transmission rod (72) is consistent with the width direction of the lower pressing mold (20), and one end of the transmission rod (72) extends horizontally out of the mounting frame (71). The first slider (73) is disposed inside the two mounting frames (71) and is threaded with the corresponding transmission rod (72) around its periphery. The first slider (73) has a first air hole (731) on one end face near the plate. The length direction of the first air hole (731) is set at an angle to the conveying direction of the plate. The second slider (74) is disposed inside the mounting frame (71) and spaced apart from the first slider (73). The second slider (74) is threadedly driven by the corresponding transmission rod (72) around its periphery. A second air hole (741) is provided on the end face of the second slider (74) near the plate. The length direction of the second air hole (741) is set at an angle to the conveying direction of the plate. The output ends of the two air tubes (75) are respectively connected to the air inlets of the first slider (73) and the second slider (74), and the input ends of the two air tubes (75) are connected to the output end of an external air source; The output shaft of the drive motor abuts against the end of the drive rod (72) away from the mounting frame (71), forming a screw drive.

7. The automatic sheet metal feeding mold according to claim 6, characterized in that, The first slider (73) has a first threaded hole inside, and the second slider (74) has a second threaded hole inside. The thread direction of the first threaded hole is opposite to that of the second threaded hole.

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