Blanking device

Abstract

The utility model relates to a blanking device, and relates to the technical field of blanking. The blanking device provided by the utility model comprises a frame body; the blanking assembly is installed on the frame body, and the blanking assembly is used for blanking the material belt to form a workpiece and cutting off waste materials formed in a material connecting area at the front end of the material belt; the bending die is installed on the frame body and located on the incoming material side of the blanking assembly, and the bending die is used for stamping the material connecting area of the material belt to form a bending part which is bent upwards; and the material floating mechanism is installed on the frame body, located on the material incoming side of the blanking assembly and located below the material belt, the material floating mechanism comprises a telescopic part, and the telescopic part is constructed to automatically extend in response to the blanking assembly ending the blanking operation, so that the material belt is lifted to be higher than the bottom of the waste material, and the waste material is discharged. The waste can be quickly cleared away, an additional control system does not need to be arranged for control, and the blanking efficiency is improved with low cost.

Description

TECHNICAL FIELD

[0001] The utility model relates to a punching technology field, in particular to a punching device. BACKGROUND

[0002] In the punching process, waste materials will be produced. If the waste materials are kept connected with the material belt, the waste material part will be curled after punching, which reduces the punching quality of the punched sheet. If the waste materials are cut off, the waste materials may be accumulated and cannot be normally discharged.

[0003] In the related art, a bending part is formed at the material belt during the punching process, and the bending part of the waste material is collided with the material belt during the feeding of the material belt to clean the accumulated waste material. In order to make the material belt collide with the bending part of the waste material, a pneumatic cylinder or a hydraulic cylinder structure is often used to lift the material belt after punching.

[0004] The hydraulic cylinder or the cylinder structure for lifting the material belt not only increases the material cost of the punching device, but also needs to additionally set a control system to control the lifting time, which greatly increases the cost. INVENTION CONTENTS

[0005] The utility model provides a punching device for conveniently discharging the punching waste material and reducing the cost of the punching device.

[0006] The utility model provides a punching device, which comprises a frame body, a punching assembly installed on the frame body, the punching assembly being used for punching a material belt to form a workpiece and cutting a connecting material area at the front end of the material belt to form a waste material;

[0007] a bending die installed on the frame body and located on the material feeding side of the punching assembly, the bending die being used for stamping the connecting material area of the material belt to form an upwardly bent bending part; and

[0008] a material floating mechanism installed on the frame body and located on the material feeding side of the punching assembly and below the material belt, the material floating mechanism comprising a telescopic piece, the telescopic piece being configured to autonomously extend to lift the material belt to be higher than the bottom of the waste material to discharge the waste material in response to the end of the punching work of the punching assembly.

[0009] In an embodiment, the frame body is provided with a vertically extending material floating installation hole, the telescopic piece is installed in the material floating installation hole, a material floating block for abutting against the bottom surface of the material belt is installed on the top of the telescopic piece, and the telescopic piece is made of an elastic material.

[0010] In an embodiment, at least two spaced-apart material floating mechanisms are installed on the frame body.

[0011] In one embodiment, the frame body is provided with a first guide block and a second guide block arranged oppositely, the first guide block and the second guide block enclose a limiting slot extending in the feeding direction, the width of the limiting slot is equal to the width of the material belt, so that the first guide block is in contact with the first side edge of the material belt and the second guide block is in contact with the second side edge of the material belt.

[0012] In one embodiment, the floating material mechanism further comprises a stop portion, the stop portion comprises a first stop portion connected with the first guide block, the first stop portion is arranged above the first guide block, and the first stop portion extends towards the second guide block;

[0013] The stop portion further comprises a second stop portion connected with the second guide block, the second stop portion is arranged above the second guide block, and the second stop portion extends towards the first guide block.

[0014] In one embodiment, the blanking assembly further comprises a guide member mounted on the frame body, the guide member is provided with a guide slot, the slot width of the guide slot in the height direction gradually decreases along the feeding direction, and the large end of the guide slot faces the limiting slot to guide the material belt in the limiting slot to be inserted at least partially into the guide slot.

[0015] In one embodiment, the frame body is provided with a blanking hole,

[0016] The blanking assembly comprises a blanking concave die and a blanking convex die opposite to the blanking concave die, the blanking concave die is mounted in the blanking hole and the top surface of the blanking concave die is higher than or flush with the top surface of the frame, the blanking concave die is provided with a die cutting hole in communication with the blanking hole, and the blanking convex die can be inserted into the die cutting hole in the vertical direction to form a workpiece by blanking and make the workpiece fall into the blanking hole.

[0017] In one embodiment, the blanking assembly further comprises an upper die plate, the blanking convex die is mounted on the upper die plate, the upper die plate can move in the vertical direction relative to the blanking concave die to drive the blanking convex die to complete blanking, and the upper die plate is further provided with a positioning rod, the blanking concave die is provided with a through hole, and the positioning rod is configured to pass through the positioning hole of the material connecting area and be inserted into the through hole of the blanking concave die during blanking.

[0018] In one embodiment, the bending die comprises a bending convex die and a bending concave die, the bending convex die is mounted on the frame body, and the bending concave die is mounted on the upper die plate.

[0019] When the blanking convex die of the blanking assembly is pressed to blank, the bending concave die presses the material connecting area at the front end of the material belt against the bending convex die, so that the material connecting area is pressed on the bending convex die, and a bending portion is formed at the material connecting area.

[0020] In one embodiment, the frame is further provided with a discharge guide groove, which is located on the discharge side of the punching assembly and extends obliquely downward.

[0021] Compared with the prior art, the advantages of this utility model are as follows: During the punching process, the connecting area of ​​the strip is bent upwards on the material receiving side of the punching assembly. After the connecting area of ​​the strip is cut off by the punching assembly, the waste material falling into the scrap area of ​​the frame all has a bent portion. Furthermore, a floating mechanism that lifts the strip after punching can raise the strip on the material receiving side of the punching assembly, allowing the strip to contact the bent portion of the waste material when transported to the punching station, thus discharging the waste material accumulated in the scrap area. Moreover, since the telescopic component can extend autonomously after punching to lift the strip, there is no need for an additional control system to control the floating mechanism, greatly reducing the cost of the punching device. Attached Figure Description

[0022] The present invention will be described in more detail below based on embodiments and with reference to the accompanying drawings.

[0023] Figure 1 This is a three-dimensional structural diagram of the blanking device during blanking in an embodiment of this utility model;

[0024] Figure 2 This is a schematic diagram of the collision between the strip material and the waste material during the punching process using the punching device in this embodiment of the present invention;

[0025] Figure 3 This is a three-dimensional structural schematic diagram of the punching device in an embodiment of this utility model;

[0026] Figure 4 This is a top view of the punching device in an embodiment of this utility model;

[0027] Figure 5 This is a cross-sectional view of the bending die in an embodiment of this utility model;

[0028] Figure 6 This is a schematic diagram of the material strip structure used in an embodiment of this utility model;

[0029] Figure 7 This is a schematic diagram of the material strip structure used in related technologies;

[0030] Figure 8 This is a cross-sectional view of the punching assembly in an embodiment of this utility model;

[0031] Figure 9 This is a three-dimensional structural diagram of the waste generated by an embodiment of this utility model.

[0032] Figure label:

[0033] 100. Blanking device;

[0034] 110. Frame; 111. Material drop hole; 112. Material discharge guide groove;

[0035] 120. Blanking assembly; 121. Blanking die; 1211. Punching hole; 1212. Positioning through hole; 122. Blanking punch; 123. Upper die plate; 124. Positioning rod; 125. Stripper plate; 126. Lower die plate;

[0036] 130. Bending die; 131. Bending punch; 132. Bending die;

[0037] 140. Floating material mechanism; 141. First stop; 142. Second stop;

[0038] 150. First guide block; 160. Second guide block;

[0039] 170. Limiting groove;

[0040] 180. Guide component; 181. Guide groove;

[0041] 700. Workpiece;

[0042] 800. Material strip; 810. Forming area; 820. Connecting area; 821. Bending cut; 822. Right angle notch; 823. Positioning hole;

[0043] 900, waste material; 910, bending section. Detailed Implementation

[0044] The present invention will be further described below with reference to the accompanying drawings.

[0045] See Figures 1 to 3 As shown, a blanking device 100 provided by this utility model includes: a frame 110, a blanking assembly 120, a bending die 130, and a material floating mechanism 140. The blanking assembly 120, the bending die 130, and the material floating mechanism 140 are all mounted on the frame 110, and the bending assembly and the material floating mechanism 140 are located on the material receiving side of the blanking assembly 120.

[0046] When the blanking assembly 120 blanks the strip 800, the blanking assembly 120 blanks the forming area 810 of the strip 800 to form the workpiece 700, and cuts off the connecting area 820 at the front end of the strip 800, so that the connecting area 820 at the front end of the strip 800 is separated from the strip 800 to form waste 900.

[0047] In some implementations, workpiece 700 is a lamination for a motor. In other implementations, workpiece 700 can also be a conventional stamped part, such as the sheet structure of a product or the outer shell of a product; workpiece 700 is not necessarily limited to a lamination for a motor.

[0048] In the diagram, to simultaneously punch the strip 800 to form the workpiece 700 and cut off the connecting area 820 at the front end of the strip 800 to form scrap 900, the punching profile of the punching assembly 120 is set to intersect with the left and right sides of the strip 800. This ensures that during punching, the portion where the punching assembly 120 intersects with the left side of the strip 800 cuts the strip 800 in the front-back direction on the right side of the punching assembly 120. Similarly, the portion where the punching assembly 120 intersects with the right side of the strip 800 can cut off the right side of the strip 800 in the front-back direction during the punching process. This results in the strip 800 being cut into three sections: the middle section is the punched workpiece 700, and the section located at the end of the workpiece 700 furthest from the incoming material side is the scrap 900.

[0049] Specifically, when punching a blank to form a circular structure, the punching profile of the punching assembly 120 can be set to a circular structure with a diameter greater than the width of the strip 800. In other words, the width dimension of the strip 800 is set to be smaller than the diameter of the punching profile. This allows the punching assembly 120 to intersect with the opposite sides of the strip 800 simultaneously during the punching process, thereby generating scrap 900 while forming the blank.

[0050] It is understandable that, when dealing with workpieces 700 of other shapes (such as polygonal workpieces 700 or workpieces 700 with irregular structures), the relationship between the punching profile of the punching assembly 120 and the size of the strip 800 can be adjusted so that the punching profile intersects with the opposite side of the strip 800. This allows the connecting area 820 at the front end of the strip 800 to be cut off and form scrap 900 during the punching process of the punching assembly 120 forming the workpiece 700.

[0051] Of course, in some implementations, the strip 800 can be punched into workpiece 700 first using the punching assembly 120, and then the strip 800 with the attached scrap 900 can be cut into scrap 900 using the cutting die in a second cut. Compared to using a separate cutting die to cut the strip 800, the method of cutting the scrap 900 by the punching assembly 120 in this application not only reduces the number of dies in the punching device 100, but also reduces the number of cuts by the punching device 100, thereby improving the punching efficiency of the punching device 100.

[0052] See Figure 1 , Figure 4 and Figure 5As shown, during the punching process, the bending die 130 located on the incoming material side of the punching assembly 120 processes the strip 800, causing the connecting area 820 on the incoming material side of the punching assembly 120 to bend into an upwardly bent portion 910. In some implementations, before punching the strip 800 using the punching device 100, the strip 800 can be pre-processed to cut a bending notch 821 at the connecting area 820 of the strip 800. This allows the bending die 130 to bend the plate structure at the bending notch 821 in the connecting area 820 during punching by the punching device 100, forming an upwardly bent portion 910.

[0053] It is understandable that as the strip 800 is fed, the connecting area 820 located on the feeding side of the punching assembly 120 will eventually move to the feeding side of the punching assembly 120 (the side of the punching assembly 120 away from the feeding side), and under the punching action of the punching assembly 120, it will form scrap 900 that falls to the feeding side of the punching assembly 120. In other words, scrap 900 generally has an upwardly protruding bent portion 910.

[0054] During the blanking process, the floating material mechanism 140 located below the strip 800 is subjected to downward pressure, causing the telescopic component to contract. After blanking is completed, as the blanking punch 122 in the blanking assembly 120 moves upward and disengages from the strip 800, the downward pressure of the floating material mechanism 140 disappears, allowing it to automatically extend upward. This raises the strip 800 above the bottom of the scrap 900 and below the top of the bending section 910. During the transport of the strip 800's connecting area 820 to the discharge side of the blanking assembly 120, subsequent incoming strips 800 collide with the scrap 900 on the discharge side, thus removing the scrap 900 away from the blanking assembly 120 and completing the scrap 900 removal process. Obviously, the higher the transport speed of the strip 800, the stronger the collision between the strip 800 and the scrap 900, making it easier to discharge the scrap 900.

[0055] Since the floating material mechanism 140 in this application has a telescopic component, compared with the use of hydraulic floating material blocks or electric floating material blocks, the floating material mechanism 140, which is realized by elastic telescopic movement, does not require additional control components and can quickly respond to raise and reset the strip 800, further improving the efficiency of punching and reducing the cost of the punching device.

[0056] In other implementations, the floating mechanism can also employ a water storage container with a hollow floating structure installed within it. This floating structure can float in the liquid within the container. Utilizing the floating structure as an extension / retraction component of the floating mechanism, it can also autonomously extend after the punching process. Specifically, when the floating structure only bears the downward pressure of the strip and not the downward pressure of the punching punch 122 during punching, the floating structure can rise to a first height, thereby lifting the strip. When the punching punch 122 punches downwards, the downward pressure from the floating structure to the strip increases, causing the floating structure to move downwards, thus moving the strip downwards.

[0057] Of course, structures capable of autonomous elongation are not limited to the elastic telescopic structures and floating structures mentioned above; they can also be other structures capable of autonomous elongation.

[0058] In summary, the blanking device 100 provided in this application can automatically generate waste material 900 during the blanking process and can clean up the waste material 900 during the feeding process. It eliminates the need to set up a waste material removal process between blanking and feeding, shortens the blanking process length, thereby improving blanking efficiency and reducing the cost of the blanking device.

[0059] See Figure 1 and Figure 4 As shown, in some implementations, the frame 110 has a vertically extending float mounting hole, and a telescopic member is installed in the float mounting hole. A float block for abutting against the bottom surface of the strip 800 is mounted on the top of the telescopic member. During punching by the punching assembly 120, the telescopic member extends and retracts vertically to at least partially house the float block in the float mounting hole. After the punching assembly 120 completes the punching, the telescopic member extends vertically to extend the float block out of the float mounting hole, raising the strip 800.

[0060] By setting vertically extending floating material mounting holes, the extension and retraction direction of the telescopic component can be restricted, preventing the telescopic component from shifting, thereby allowing the floating material block to move vertically and preventing the floating material block from shifting horizontally.

[0061] In some implementations, the telescopic component can be a spring with a large elastic deformation, which can lift the strip 800 higher, thereby avoiding interference between the strip 800 and the punching die 121 of the punching assembly 120 during transportation.

[0062] In other implementations, the telescopic components can also be made of elastic materials such as silicone or rubber.

[0063] See Figure 3As shown, in some implementations, the lifting height h of the floating material mechanism 140 is determined based on the top height H1 of the bending punch 131 on the discharge side, the top surface height H2 of the punching die 121, and the top height H3 of the bent portion 910 of the scrap 900 on the discharge side.

[0064] Wherein, max(H1, H2) < h < H3, and max(H1, H2) refers to the larger of H1 and H2, so that when the strip 800 is raised to a height of h, the strip 800 is higher than the top height of the bending punch 131 and the top surface of the punching die 121, and the strip 800 is lower than the top of the bent portion 910 that falls on the scrap 900 on the discharge side.

[0065] Preferably, max(H1, H2) + 2mm < h < H3 - 2mm. This ensures that the raised strip 800 is at least 2mm higher than the top of the bending punch 131 and the top surface of the blanking die 121, and at least 2mm lower than the top surface of the bending portion 910, ensuring that the strip 800 does not interfere with the bending punch 131 or the blanking die 121, and that the strip 800 can collide with the bending portion 910.

[0066] See Figure 4 As shown, in some implementations, at least two spaced-apart floating mechanisms 140 are installed on the frame 110. Through the spaced-apart floating mechanisms 140, the material belt 800 can be lifted evenly upwards, avoiding the situation where some areas are raised while other areas are lowered.

[0067] See Figure 4 As shown, the frame 110 is equipped with two floating mechanisms 140. These two floating mechanisms 140 are symmetrically arranged along the diameter of the punching die 121, and their axes of symmetry are along the material feeding direction of the strip 800. By symmetrically arranging the floating mechanisms 140, each of the bottom left and bottom right sides of the strip 800 is supported and raised. This allows for a more uniform raising of the strip 800, preventing it from tilting due to the elevation.

[0068] It should be noted that the lifting height of each floating material mechanism 140 is the same to avoid the material belt 800 tilting due to different lifting heights of each floating material mechanism 140.

[0069] Understandably, in some implementations, multiple floating mechanisms 140 can be set up to raise the material belt 800 more evenly.

[0070] See Figure 1 and Figure 3As shown, in some implementations, the frame 110 is provided with a first guide block 150 and a second guide block 160, which form a limiting groove 170 extending along the feeding direction. The width of the limiting groove 170 is equal to the width of the material strip 800, so that the first guide block 150 contacts the first side of the material strip 800 and the second guide block 160 contacts the second side of the material strip 800.

[0071] The limiting groove 170 formed by the first guide block 150 and the second guide block 160 enables the strip 800 to move along the feeding direction during the feeding process, preventing the strip 800 from deviating during the feeding process, thereby enabling the punching assembly 120 to punch the strip 800 with high punching accuracy.

[0072] See Figure 1 and Figure 3 As shown, in some implementations, the floating material mechanism further includes a stop, wherein the stop includes a first stop 141 connected to the first guide block 150, the first stop 141 being disposed above the first guide block and extending toward the second guide block 160. The stop also includes a second stop 142 connected to the second guide block 160, the second stop 142 being disposed above the second guide block and extending toward the first guide block 150. By providing the first stop 141 extending toward the second guide block 160 above the first guide block 150, the material strip 800 extending into the limiting groove 170 can be prevented from moving upward out of the limiting groove 170, thereby limiting the lifting height of the material strip 800. Similarly, by providing the second stop 142 extending toward the first guide block 150 above the second guide block 160, the material strip 800 extending into the limiting groove 170 can also be prevented from moving upward out of the limiting groove 170, thereby limiting the lifting height of the material strip 800.

[0073] By limiting the lifting height of the conveyor belt 800 through the first stop 141 and the second stop 142, it is possible to prevent the floating material mechanism 140 from lifting the conveyor belt 800 too high and exceeding the top of the bending section 910, thus preventing the conveyor belt 800 from colliding with the bending section 910. It is understood that the height of the first stop 141 can be set according to the vertical length L of the bending section 910. Specifically, the height H4 of the first stop 141 can be set to H4 < H3, where H3 is the top height of the bending section 910 of the waste material 900 on the discharge side.

[0074] See Figure 1 and Figure 3 As shown, not only is a limiting groove 170 provided on the feeding side of the punching assembly 120, but a limiting groove 170 can also be provided on the discharging side of the punching assembly 120, thereby limiting the maximum height of the material strip 800 at all times during the feeding process and preventing the material strip 800 from shifting upward.

[0075] See Figure 1 , Figure 3 as well as Figure 8 As shown, in some implementations, the punching assembly 120 also includes a guide 180 mounted on the frame 110. The guide 180 has a guide groove 181. The width of the guide groove 181 in the height direction gradually decreases along the feeding direction, and the larger end of the guide groove 181 faces the limiting groove 170, so as to guide the material strip 800 in the limiting groove 170 to be at least partially inserted into the guide groove 181.

[0076] During feeding, the material belt 800 extends into the guide groove 181 from the wide end of the guide groove 181. Since the width of the guide groove 181 gradually decreases along the feeding direction, the height limit in the height direction becomes smaller and smaller, thus limiting the height of the guide groove 181 to a specific height. Specifically, the height of the guide groove 181 at the end furthest from the feed side can be set to H5, where H5 is the height of the middle portion of the bending section 910. This guide groove 181 guides the material belt 800 to the same height as the middle portion of the bending section 910, thereby better colliding with the waste material 900 on the discharge side and cleaning up the waste material 900.

[0077] In some implementations, the guide 180 is positioned at the maximum dimension of the blanking die 121 in the width direction of the strip 800. It is understood that, since the blanking assembly 120 can cut the strip 800 to form scrap 900 falling on the exit side, the blanking die 121 will extend beyond the strip 800 in the width direction. To avoid interference between the guide 180 and the blanking assembly 120 during the blanking process, a telescopic member is provided connected to the guide 180. During blanking by the blanking assembly 120, the telescopic member retracts to move the guide 180 away from the blanking assembly 120, and when the blanking assembly 120 is finished, the telescopic member extends to engage with the strip 800.

[0078] The height of the guide 180 is higher than the height of the punching die 121. When the guide 180 extends and engages with the strip 800, the guide 180 is located directly above the punching punch 122.

[0079] See Figure 6 As shown, the blanking profile of the blanking assembly 120 is circular, and the diameter of the blanking profile in the feeding direction is greater than the feeding step length of the strip 800. When the strip 800 is transported at the feeding step length, there will be an overlapping area between two adjacent blanking areas of the blanking assembly 120, thereby cutting off the scrap 900 on the discharge side. When forming a workpiece 700, two scraps 900 are formed, and the two scraps 900 are arranged along the width direction of the strip 800.

[0080] Understandably, in order to remove the two scraps 900 from the two discharge sides, two bending dies 130 are installed in front of the incoming side of the punching assembly 120 to form two spaced-apart bends 910 in the continuous material zone 820. See Figure 4 As shown, since the blanking profile is a circular structure, the two bending dies 130 can be symmetrically arranged along the diameter of the blanking die 121, and the axis of symmetry of the two bending dies 130 is set along the feeding direction. This ensures that both scrap pieces 900 on the discharge side have a bent portion 910. When the strip 800 moves to the discharge side, the strip 800 can collide with the two scrap pieces 900 on the discharge side, clearing away the two scrap pieces 900.

[0081] See Figure 1 and Figure 4 As shown, in some implementations, the frame 110 has a blanking hole 111, and the blanking assembly 120 includes a blanking die 121 and a blanking punch 122 opposite to the blanking die 121. The blanking die 121 is installed in the blanking hole 111, and the top surface of the blanking die 121 is higher than or flush with the top surface of the frame. The blanking die 121 has a punching hole 1211 that communicates with the blanking hole 111. The punching punch 122 can be inserted into the punching hole 1211 in the vertical direction to punch and form a workpiece 700, so that the workpiece 700 falls into the blanking hole 111.

[0082] By opening a blanking hole 111 on the frame 110 and connecting the punching hole 1211 of the punching die 121 to the blanking hole 111, the workpiece 700 can fall directly into the punching hole 1211 and the blanking hole 111 after being punched off the strip 800, facilitating the collection of the workpiece 700. It is understood that a collection device can be installed below the blanking hole 111 to collect the workpiece 700 falling from the blanking hole 111. Specifically, an open container (such as a box, jar, or barrel) can be directly installed below the blanking hole 111 to collect the workpiece 700, or a conveying mechanism can be installed below the blanking hole 111 to transport the falling workpiece 700 to the next station.

[0083] To achieve the punching function, a drive unit can be installed on the frame 110, and a template 123 can be installed on the drive end of the drive unit. The punching punch 122 is then installed on the upper template 123. When punching is required, the drive unit can drive the upper template 123 downwards, causing the punching punch 122 to move downwards, allowing it to insert into the punching hole 1211 of the punching die 121, thus completing the punching of the strip 800. It is understood that the drive unit can be a hydraulic drive or an electric drive mechanism.

[0084] See Figure 1 and Figure 4As shown, in some implementations, a positioning rod 124 is also installed on the upper template 123, and the punching die 121 has a through hole. The positioning rod 124 is configured to pass through the positioning hole 823 of the connecting area 820 and insert into the positioning through hole 1212 of the punching die 121 during punching. That is, by setting the positioning rod 124 on the upper template 123, the positioning rod 124 is driven to move downward synchronously during punching. By using the positioning rod 124 passing through the positioning hole 823 of the connecting area 820, the connecting area 820 of the strip 800 is positioned, thereby improving the punching accuracy. By setting the positioning through hole 1212 on the punching die 121, the hard contact between the positioning rod 124 and the punching die 121 during positioning can be avoided, thus preventing damage to the punching die 121 or the positioning rod 124.

[0085] In some implementations, the positioning rod 124 can be configured to extend downwards from the punching punch 122, so that during the downward movement of the upper die plate 123, the positioning rod 124 contacts the strip 800 first, thus achieving the positioning function of the strip 800 before punching. A tapered guide structure can be provided at the bottom end of the positioning rod 124, thereby guiding the strip 800 for fine-tuning during the downward movement of the upper die plate 123, improving the positioning accuracy of the strip 800.

[0086] See Figure 1 and Figure 4 As shown, multiple positioning rods 124 are provided on the circumferential outer side of the punching punch 122, and multiple positioning holes 823 are provided on the strip 800 accordingly. By inserting multiple positioning rods 124 into the corresponding positioning holes 823, multi-point positioning of the strip 800 is achieved, thereby improving the positioning accuracy of the strip 800.

[0087] See Figure 1 , Figure 3 and Figure 8 As shown, in some implementations, the blanking assembly 120 further includes a stripper plate 125, which is slidably mounted outside the blanking punch 122. The stripper plate 125 can press down the strip 800 during the blanking process, preventing the strip 800 from warping and reducing blanking accuracy. The blanking assembly 120 may include a lower die plate 126, on which the blanking die 121 is mounted. In other implementations, the lower die plate 126 may be integrated into the frame 110.

[0088] See Figure 5As shown, in some implementations, the bending die 130 includes a bending punch 131 and a bending die 132. The bending punch 131 is mounted on the frame 110, and the bending die 132 is mounted on the upper template 123. When the punching punch 122 of the punching assembly 120 presses down to perform punching, the bending die 132 presses the connecting area 820 at the front end of the strip 800 onto the bending punch 131, so that the bending punch 131 pushes the connecting area 820 upward, forming a bent portion 910 in the connecting area 820.

[0089] Since the bending die 132 is mounted on the upper die plate 123, it can move downwards synchronously during the punching process, thereby completing the bending of the connecting material area 820. Compared to setting an additional drive mechanism to drive the bending die 132 downwards, this reduces the drive mechanism of the punching device 100 and lowers its cost. Furthermore, it ensures that punching and bending are performed synchronously, improving punching efficiency.

[0090] The bending punch 131 can be a protruding structure protruding from the upper surface of the frame, so that when the strip 800 is pressed down on the frame, the bending punch 131 protruding from the upper surface of the frame will lift up part of the structure of the strip 800 connecting area 820 to form an upwardly bent part 910.

[0091] See Figure 1 and Figure 3 As shown, in some implementations, the frame 110 is also provided with a discharge guide groove 112, which is located on the discharge side of the punching assembly 120. Since the discharge guide groove 112 extends downward at an angle on the discharge side, it can guide the waste material 900 on the discharge side to slide downward, thereby completing the cleaning of the waste material 900.

[0092] See Figure 1 and Figure 3 As shown, the frame 110 has two spaced-apart discharge guide grooves 112 on the discharge side of the punching assembly 120. This is to guide the two different types of waste 900 to different areas, thereby achieving the diversion of waste 900.

[0093] See Figure 1 , Figure 6 and Figure 9 As shown, to improve the sliding direction of the waste 900 after the material belt 800 collides with it, a right-angle notch 822 corresponding to the bending part 910 can be provided at the front end of the connecting area 820 of the material belt 800. This allows the waste 900 to slide along the feeding direction after colliding with the bending part 910 through the right-angle notch 822 of the connecting area 820. Compared to colliding with the waste 900 through the arc edge of the connecting area 820, the sliding direction of the waste 900 is the same as the feeding direction, avoiding collisions between the two waste pieces 900 and reducing abnormal noise during cleaning.

[0094] Although the present invention has been described with reference to preferred embodiments, various modifications can be made thereto and components can be replaced with equivalents without departing from the scope of the invention. In particular, the technical features mentioned in the various embodiments can be combined in any manner, provided there is no structural conflict. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A punching device, characterized in that, It includes: Frame; A blanking assembly is installed on the frame. The blanking assembly is used to blank the strip to form a workpiece and to cut off the connecting area at the front end of the strip to form waste. A bending die is installed on the frame and located on the material receiving side of the punching assembly. The bending die is used to punch the connecting area of ​​the strip into an upwardly bent portion. as well as A material floating mechanism is installed on the frame and located on the incoming side of the punching assembly, and below the strip. The material floating mechanism includes a telescopic member configured to extend autonomously in response to the punching assembly completing the punching operation, thereby raising the strip above the bottom of the waste to discharge the waste.

2. The punching device according to claim 1, characterized in that, The frame has vertically extending floating material mounting holes, and the telescopic component is installed in the floating material mounting holes. The top of the telescopic component is equipped with a floating material block for abutting against the bottom surface of the material strip. The telescopic component is made of elastic material.

3. The punching device according to claim 1, characterized in that, The frame is equipped with at least two spaced-apart floating mechanisms.

4. The punching apparatus according to any one of claims 1-3, characterized in that, The frame is provided with a first guide block and a second guide block arranged opposite to each other. The first guide block and the second guide block form a limiting groove extending along the feeding direction. The width of the limiting groove is equal to the width of the material strip, so that the first guide block contacts the first side of the material strip and the second guide block contacts the second side of the material strip.

5. The punching device according to claim 4, characterized in that, The floating material mechanism further includes a baffle, which includes a first baffle connected to the first guide block. The first baffle is disposed above the first guide block and extends toward the second guide block. The stop also includes a second stop connected to the second guide block, the second stop being disposed above the second guide block and extending toward the first guide block.

6. The punching device according to claim 4, characterized in that, The punching assembly also includes a guide member installed on the frame. The guide member has a guide groove. The width of the guide groove gradually decreases along the feeding direction in the height direction, and the larger end of the guide groove faces the limiting groove, so as to guide the material strip in the limiting groove to be at least partially inserted into the guide groove.

7. The punching apparatus according to any one of claims 1-3, characterized in that, The frame is provided with a material drop hole. The blanking assembly includes a blanking die and a blanking punch opposite to the blanking die. The blanking die is installed in the blanking hole and the top surface of the blanking die is higher than or flush with the top surface of the frame. The blanking die has a punching hole that communicates with the blanking hole. The blanking punch can be inserted into the punching hole in a vertical direction to blank and form a workpiece, so that the workpiece falls into the blanking hole.

8. The punching device according to claim 7, characterized in that, The blanking assembly also includes an upper template, on which the blanking punch is mounted. The upper template can move vertically relative to the blanking die to drive the blanking punch to complete the blanking. A positioning rod is also mounted on the upper template. The blanking die has a through hole. The positioning rod is configured to pass through the positioning hole in the connecting area and be inserted into the through hole of the blanking die during blanking.

9. The punching device according to claim 8, characterized in that, The bending die includes a bending punch and a bending die, the bending punch is mounted on the frame, and the bending die is mounted on the upper template; When the punching punch of the punching assembly presses down to punch, the bending die presses the connecting area at the front end of the strip onto the bending punch, so that the bending punch pushes the connecting area to form a bent part at the connecting area.

10. The punching apparatus according to any one of claims 1-3, characterized in that, The frame is also provided with a discharge guide groove, which is located on the discharge side of the punching assembly and extends obliquely downward.

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