License plate stamping die

Abstract

The utility model discloses a license plate stamping die which comprises an upper die and a lower die, and a first guide mechanism is arranged between the upper die and the lower die. The lower end of the upper die is slidably connected with a plurality of first guide columns, and the lower ends of the first guide columns are fixedly connected with a stamping plate. A plurality of punching columns are arranged at the lower end of the upper die; a plurality of punching grooves are formed in the punching plate in a penetrating mode and correspond to the punching columns. A bottom block is arranged on the lower die, a plurality of discharging grooves are formed in the bottom block and the lower die in a penetrating mode, and the discharging grooves correspond to the punching grooves; the front side and the rear side of the lower end of the upper die are fixedly connected with cutting blocks correspondingly, and the cutting blocks are located at the two ends of the bottom block in the vertical direction and do not coincide. A connecting mechanism located at the feeding end of the bottom block is arranged on the lower die, and a second guide mechanism is arranged on the outer side of the connecting mechanism. According to the utility model, raw materials can be subjected to continuous punch forming, and manual material taking and placing operations are reduced, so that dangers are reduced.

Description

Technical Field

[0001] This utility model relates to a license plate stamping die, belonging to the field of stamping die technology. Background Technology

[0002] Stamping dies are crucial process equipment in cold stamping, efficiently processing metal (such as steel plates and aluminum plates) or non-metallic (such as plastics and rubber) materials into parts or semi-finished products at room temperature; hence, they are also called cold stamping dies. Their core function is to achieve material separation, forming, or modification through the precise cooperation of the punch and die. For example, Chinese utility model patent CN221246709U discloses a stamping die for metal parts, specifically including a stamping equipment body, a die body placed on the table of the stamping equipment body, side blocks on both sides of the die body in the width direction, and a mounting base fixedly connected to the table of the stamping equipment body, with a rotating shaft rotatably connected inside the mounting base. These types of stamping dies require manual placement of the workpiece into the die body, with the punch descending to stamp the part. Improper operation during material handling during material handling can easily lead to injury. Utility Model Content

[0003] The purpose of this invention is to provide a license plate stamping die. This invention enables continuous stamping of raw materials, reducing manual material handling and thus lowering the risk of accidents.

[0004] The technical solution of this utility model is as follows: A license plate stamping die includes an upper die and a lower die, with a first guiding mechanism between the upper die and the lower die; a plurality of first guide pillars are slidably connected to the lower end of the upper die, and a stamping plate is fixedly connected to the lower end of the first guide pillars; a plurality of perforated pillars are provided at the lower end of the upper die; a plurality of perforated slots are provided through the stamping plate, and the perforated slots correspond to the perforated pillars; a bottom block is provided on the lower die, and a plurality of unloading slots are provided through the bottom block and the lower die, and the unloading slots correspond to the perforated slots; cutting blocks are fixedly connected to the front and rear sides of the lower end of the upper die, and the cutting blocks are located at both ends of the bottom block in the vertical direction and do not overlap; a connecting mechanism is provided on the lower die at the feeding end of the bottom block, and a second guiding mechanism is provided on the outside of the connecting mechanism.

[0005] The above-mentioned license plate stamping die includes a first guiding mechanism comprising second guide posts respectively disposed at the four corners of the upper end of the lower die and slide cylinders disposed at the four corners of the lower end of the upper die; a guide sleeve is slidably connected to the upper part of the second guide post, and the guide sleeve corresponds to the slide cylinder; a first spring is provided between the guide sleeve and the lower die and surrounds the outer side of the second guide post.

[0006] The aforementioned license plate stamping die includes a connecting mechanism comprising a plurality of third guide posts disposed at the feeding end of the lower die, the third guide posts being slidably connected to the lower die; a lifting block is fixedly connected above the third guide posts, the lifting block being located below the cutting block at the feeding end; a second spring is provided between the lifting block and the lower die, located outside the third guide posts.

[0007] The aforementioned license plate stamping die includes a second guiding mechanism comprising mounting blocks symmetrically arranged on both sides of the feed end of the lower die, with guide wheels rotatably connected to the outer ends of the mounting blocks; a through hole is provided on the inner end of the mounting block, and a bolt is provided on the through hole, with a fourth bolt passing through the through hole and connected to the lower die via threads.

[0008] In the aforementioned license plate stamping die, the bottom block is provided with limiting blocks on the left and right sides respectively. The limiting blocks are located on both sides of the stamping plate in the vertical direction and do not overlap.

[0009] The aforementioned license plate stamping die has multiple support blocks at the bottom of the lower die, and the support blocks are offset from the unloading groove.

[0010] The aforementioned license plate stamping die has multiple mounting slots on the left and right sides of the upper die.

[0011] In the aforementioned license plate stamping die, when the upper and lower dies are separated, the lower end face of the stamping plate is lower than the lower end face of the cutting block.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. In this invention, the raw material required for license plate processing enters through the second guiding mechanism to ensure that the angle does not deviate. After passing through the connecting mechanism, it enters the feeding end of the lower die and is fed to a certain length. The upper die descends under the action of the external stamping body. The stamping plate first contacts the raw material and flattens it. As the upper die continues to descend, the cutting block cuts both ends of the raw material to the required length. Simultaneously, the punching pins, as the upper die continues to descend, pass through the punching slot and punch holes in the cut raw material. Waste material generated during the punching process falls downward through the unloading groove. After the license plate substrate is formed, the upper die rises, and the raw material continues to be fed in. Due to the connecting mechanism, the cut ends of the raw material can smoothly enter above the bottom block. As the raw material is fed in, it pushes against the already formed license plate substrate and is sent outward. The above operation is then repeated. Therefore, this invention achieves continuous stamping and forming of raw materials, reducing manual material handling and improving production efficiency while reducing the risk of personnel injury.

[0014] 2. In this utility model, the first guide mechanism cooperates with the guide sleeve through the slide and descends along the second guide post to guide the upper mold to open and close smoothly and accurately relative to the lower mold, preventing deviation and shaking during the movement; when the upper mold and the lower mold need to separate, the first spring provides sufficient elastic force to reset the guide sleeve.

[0015] 3. In this utility model, when the upper and lower dies are combined for stamping, the end of the material to be cut is lowered along with the lifting block under the contact of the upper cutting block; during the process of the upper die rising, the end of the material to be cut is raised along with the lifting block under the action of the second spring until the upper end surface of the lifting block is flush with the upper end surface of the bottom block. At this time, the material can be smoothly fed into the bottom block, reducing the need for manual washing and feeding of the material due to the stamping segmentation. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the lower mold structure;

[0018] Figure 3 This is a schematic diagram of the upper mold structure.

[0019] The markings in the attached diagram are as follows: 1-Upper mold, 2-Lower mold, 3-First guide mechanism, 4-First guide post, 5-Stamping plate, 6-Drilling post, 7-Drilling groove, 8-Bottom block, 9-Unloading groove, 10-Cutting block, 11-Connecting mechanism, 12-Second guide mechanism, 13-Limiting block, 14-Support block, 15-Mounting groove, 20-Second guide post, 21-Slide cylinder, 22-Guide sleeve, 23-First spring, 30-Third guide post, 31-Lifting block, 32-Second spring, 40-Mounting block, 41-Guide wheel, 42-Through hole, 43-Bolt. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments, but this should not be construed as limiting the present invention.

[0021] Example: A license plate stamping die, configured as follows Figures 1-3 As shown, the upper mold 1 and lower mold 2 are made of Cr12MoV mold steel, and after quenching treatment, their hardness can reach HRC58-62, possessing high strength and wear resistance, and capable of withstanding high-frequency impact loads; a first guide mechanism 3 is provided between the upper mold 1 and the lower mold 2; as shown... Figure 3 As shown, the lower end of the upper mold 1 is slidably connected to multiple first guide posts 4, and the lower end of the first guide posts 4 is fixedly connected to a stamping plate 5; the lower end of the upper mold 1 is provided with multiple perforated posts 6; multiple perforated slots 7 are provided through the stamping plate 5, and the perforated slots 7 correspond to the perforated posts 6; as shown...Figure 2 As shown, the lower mold 2 is provided with a bottom block 8. The bottom block 8 and the lower mold 2 are integrally formed from HT200 gray cast iron. Multiple unloading grooves 9 are provided through the bottom block 8 and the lower mold 2. The unloading grooves 9 correspond to the punching grooves 7 and are used to discharge punching waste. The lower end of the upper mold 1 is fixedly connected to the front and rear sides respectively. The cutting blocks 10 are located at both ends of the bottom block 8 in the vertical direction and do not overlap. The lower mold 2 is provided with a connecting mechanism 11 located at the feeding end of the bottom block 8. A second guiding mechanism 12 is provided on the outside of the connecting mechanism 11. When the upper mold 1 and the lower mold 2 are separated, the lower end face of the stamping plate 5 is lower than the lower end face of the cutting block 10. The raw material required for license plate processing enters through the second guide mechanism 12, ensuring that the angle does not deviate. After passing through the connecting mechanism 11, it enters the feeding end of the lower die 2 and is fed to a certain length. Under the action of the external stamping body, the upper die 1 descends. The stamping plate 5 first contacts the raw material and flattens it. As the upper die 1 continues to descend, the cutting block 10 cuts both ends of the raw material and cuts off the required length. At the same time, the punching column 6 passes through the punching slot 7 as the upper die 1 continues to descend and punches holes in the cut raw material. The waste material formed during the punching process falls down through the unloading slot 9. After the license plate substrate is formed, the upper die 1 rises and the raw material continues to be fed in. Due to the existence of the connecting mechanism 11, the cut end of the raw material can smoothly enter above the bottom block 8. As the raw material is fed in, it will push against the already formed license plate substrate and be sent out. Then the above operation is repeated.

[0022] Preferably, such as Figure 2 and Figure 3 As shown, the first guiding mechanism 3 includes second guide posts 20 respectively disposed at the four corners of the upper end of the lower mold 2 and slide cylinders 21 disposed at the four corners of the lower end of the upper mold 1; a guide sleeve 22 is slidably connected to the upper part of the second guide post 20, and the guide sleeve 22 corresponds to the slide cylinder 21; a first spring 23 is provided between the guide sleeve 22 and the lower mold 2, surrounding the outside of the second guide post 20. The first guiding mechanism 3 guides the upper mold 1 to perform a smooth and accurate opening and closing movement relative to the lower mold 2 through the cooperation of the slide cylinder 21 and the guide sleeve 22 and its descent along the second guide post 20, preventing deviation and shaking during the movement; when the upper mold 1 and the lower mold 2 need to separate, the first spring 23 provides sufficient elastic force to reset the guide sleeve 22.

[0023] Preferably, such as Figure 2As shown, the connecting mechanism 11 includes multiple third guide posts 30 disposed at the feeding end of the lower die 2, the third guide posts 30 being slidably connected to the lower die 2; a lifting block 31 is fixedly connected above the third guide posts 30, the lifting block 31 being located below the cutting block 10 at the feeding end; a second spring 32 located outside the third guide posts 30 is provided between the lifting block 31 and the lower die 2. When the upper die 1 and the lower die 2 are combined for stamping, the end of the raw material being cut is lowered along with the lifting block 31 under the abutment of the upper cutting block 10; during the upward movement of the upper die 1, the end of the raw material being cut is raised along with the lifting block 31 under the action of the second spring 32 until the upper end surface of the lifting block 31 is flush with the upper end surface of the bottom block 8, at which point the raw material can continue to be fed in and smoothly enter the bottom block 8, reducing the need for manual rinsing and feeding of raw materials due to stamping segmentation.

[0024] Preferably, such as Figure 2 As shown, the second guiding mechanism 12 includes mounting blocks 40 symmetrically arranged on both sides of the feed end of the lower mold 2. Guide wheels 41 are rotatably connected to the outer ends of the mounting blocks 40. The guide wheels 41 are made of nitrile rubber with a surface hardness of Shore A80 to prevent scratching the surface of the raw material. A through hole 42 is provided on the inner end of the mounting block 40, and a bolt 43 is provided on the through hole 42. The bolt 43 passes through the through hole 42 and is threaded to the lower mold 2. By adjusting the angle of the mounting blocks 40 on both sides, the distance between the guide wheels 41 is made equal to the width of the raw material. Then, by tightening the bolts 43, the mounting blocks 40 are fixed, ensuring that the edge of the raw material contacts the guide wheels 41 before entering the lower mold 2, thus preventing the raw material from shifting during feeding.

[0025] Preferably, such as Figure 2 As shown, limiting blocks 13 are provided on the left and right sides of the bottom block 8, and the limiting blocks 13 are located on both sides of the stamping plate 5 in the vertical direction and do not overlap. The limiting blocks 13 are used to limit the descent of the upper die 1 to prevent excessive compression of the raw material due to excessive descent of the upper die 1, which could cause deformation.

[0026] Preferably, such as Figure 2 As shown, the bottom of the lower die 2 is provided with multiple support blocks 14, which are offset from the unloading groove 9. The support blocks 14 ensure that there is a gap between the lower die 2 and the machine table after it is connected to the external stamping machine body, which facilitates the falling of waste material.

[0027] Preferably, such as Figure 3 As shown, the upper die 1 is provided with multiple mounting slots 15 on the left and right sides. By passing the corresponding mounting bolts through the lower end of the mounting slot 15 and connecting their ends to the stamping machine body, the upper die 1 is fixed to the stamping end of the stamping machine body.

[0028] Working principle:

[0029] Raw material guidance and positioning: The raw material enters from the second guide mechanism 12 at the feeding end of the lower die 2. By adjusting the angle of the mounting blocks 40 on both sides, the distance between the guide wheels 41 is made to match the width of the raw material. Then, the bolts 43 are tightened to fix the mounting blocks 40, so that the edge of the raw material contacts the guide wheels 41 and enters the lower die 2 smoothly. This ensures that the raw material will not deviate in angle or be misaligned when it is fed in, and provides accurate initial positioning for subsequent stamping processes.

[0030] Stamping process: When the raw material enters the feed end of the lower die 2 through the connecting mechanism 11 and reaches the specified feeding length, the external stamping machine body drives the upper die 1 to descend. The stamping plate 5 at the lower end of the upper die 1 first contacts the raw material and flattens its surface, providing a flat processing benchmark for cutting and punching. Then the upper die 1 continues to descend, and the cutting blocks 10 on the front and rear sides cut the two ends of the raw material, separating the substrate segment to be processed according to the required length. At the same time, the punching post 6 at the lower end of the upper die 1 passes downward along the punching groove 7 on the stamping plate 5, and punches the cut raw material. The upper machining hole is processed, and the waste generated during the drilling process is discharged downward through the bottom block 8 of the lower die 2 and the unloading groove 9 on the lower die 2 to avoid the accumulation of waste and affect the process. During the stamping process, the connecting mechanism 11 at the feeding end descends with the upper die 1, and the lifting block 31 descends synchronously under the resistance of the cutting block 10 to receive the end of the raw material that is cut. When the upper die 1 rises, the lifting block 31 is reset under the action of the second spring 32, so that the end of the raw material is flush with the upper surface of the bottom block 8, ensuring that the subsequent raw material can smoothly enter the lower die 2 and reduce manual intervention.

[0031] Continuous production cycle: After the upper die 1 completes one stamping and rises, the raw material continues to be conveyed forward. The formed license plate substrate is pushed outward by the subsequently fed raw material. The new unprocessed raw material enters the lower die 2 through the second guide mechanism 12 and the connecting mechanism 11, repeating the process of "flattening raw material → cutting both ends → machining holes → discharging waste → resetting upper die 1 → lifting block rising". Through the coordinated action of each mechanism, automated continuous production from raw material input to substrate forming is realized.

Claims

1. A license plate stamping die, comprising an upper die (1) and a lower die (2), wherein a first guide mechanism (3) is provided between the upper die (1) and the lower die (2); characterized in that: The upper mold (1) is slidably connected to a plurality of first guide posts (4) at its lower end, and a stamping plate (5) is fixedly connected to the lower end of the first guide posts (4); the upper mold (1) is provided with a plurality of punching posts (6) at its lower end; a plurality of punching slots (7) are provided through the stamping plate (5), and the punching slots (7) correspond to the punching posts (6); the lower mold (2) is provided with a bottom block (8), and a plurality of unloading slots (9) are provided through the bottom block (8) and the lower mold (2), and the unloading slots (9) correspond to the punching slots (7); a cutting block (10) is fixedly connected to the front and rear sides of the lower end of the upper mold (1), and the cutting block (10) is located at both ends of the bottom block (8) in the vertical direction and does not overlap; the lower mold (2) is provided with a connecting mechanism (11) located at the feeding end of the bottom block (8), and a second guiding mechanism (12) is provided on the outside of the connecting mechanism (11).

2. The license plate stamping die according to claim 1, characterized in that: The first guiding mechanism (3) includes second guide posts (20) respectively disposed at the four corners of the upper end of the lower mold (2) and slide cylinders (21) disposed at the four corners of the lower end of the upper mold (1); the second guide post (20) is slidably connected to a guide sleeve (22), the guide sleeve (22) corresponding to the slide cylinder (21); a first spring (23) is provided between the guide sleeve (22) and the lower mold (2) and surrounds the outside of the second guide post (20).

3. The license plate stamping die according to claim 1, characterized in that: The connecting mechanism (11) includes a plurality of third guide posts (30) disposed at the feeding end of the lower mold (2), the third guide posts (30) being slidably connected to the lower mold (2); a lifting block (31) is fixedly connected above the third guide post (30), the lifting block (31) being located below the cutting block (10) at the feeding end; a second spring (32) located outside the third guide post (30) is provided between the lifting block (31) and the lower mold (2).

4. The license plate stamping die according to claim 1, characterized in that: The second guiding mechanism (12) includes mounting blocks (40) symmetrically arranged on both sides of the feed end of the lower mold (2). The outer end of the mounting block (40) is rotatably connected to a guide wheel (41). The inner end of the mounting block (40) is provided with a through hole (42), and a bolt (43) is provided on the through hole (42). The fourth bolt (43) passes through the through hole (42) and is connected to the lower mold (2) by thread.

5. The license plate stamping die according to claim 1, characterized in that: The bottom block (8) is provided with limiting blocks (13) on the left and right sides respectively. The limiting blocks (13) are located on both sides of the stamping plate (5) in the vertical direction and do not overlap.

6. The license plate stamping die according to claim 1, characterized in that: The bottom of the lower mold (2) is provided with multiple support blocks (14), which are offset from the unloading groove (9).

7. The license plate stamping die according to claim 1, characterized in that: The upper mold (1) has multiple mounting slots (15) on its left and right sides.

8. The license plate stamping die according to claim 1, characterized in that: When the upper die (1) and lower die (2) are separated, the lower end face of the stamping plate (5) is lower than the lower end face of the cutting block (10).

Images