Quick-change type waste cutter for blanking die

Abstract

The utility model discloses a quick-change type waste cutter for a blanking die, which belongs to the technical field of blanking dies and comprises a lower female die cutting edge and an upper male die punch. The first positioning groove is formed in one end of the cutting edge of the lower female die, a matched positioning pin is arranged in the first positioning groove, a supporting plate is arranged on the outer side of the positioning pin, and a second positioning groove is formed in one end of the punch of the upper male die; according to the utility model, the installation position of the cutting edge of the lower female die can be effectively and accurately limited through the plurality of guide grooves arranged in the cutting edge of the lower female die, the plurality of guide rods matched with the upper end of the supporting plate, and the plurality of abutting pins in the cutting edge of the lower female die and the abutting grooves on one sides of the guide rods; compared with the prior art, the blanking die has the advantages that any position deviation phenomenon possibly occurring in the mounting process is greatly avoided, the waste cutting precision is remarkably improved, it is guaranteed that higher use precision can be kept when the waste cutter of the blanking die is rapidly replaced, and therefore the overall production efficiency and the product quality are improved.

Description

Technical Field

[0001] This utility model belongs to the field of blanking die technology, specifically relating to a quick-change waste cutter for blanking dies. Background Technology

[0002] A quick-change scrap cutter for blanking dies is a type of scrap cutting tool that can be quickly replaced within blanking dies. It is typically used in conjunction with the blanking die to quickly and efficiently cut away the remaining scrap after the desired shape has been cut from metal or non-metal sheets. The working principle of the quick-change scrap cutter is primarily based on shearing and cutting principles. When the sheet metal is placed on the blanking die, the scrap cutter, through its specific cutting edge design, shears or cuts the scrap. This type of scrap cutter usually features a quick-change design, allowing for rapid replacement when worn or damaged, ensuring production efficiency and processing quality. It also reduces production costs by minimizing time and labor costs in the scrap handling process. Quick-change scrap cutters for blanking dies are widely used in mold manufacturing, automotive parts manufacturing, machinery manufacturing, and electronics manufacturing.

[0003] While existing quick-change scrap cutters for blanking dies do offer the convenience of rapid scrap cutter replacement, their structural design is often quite simple and straightforward, merely mounting the scrap cutter onto the blanking die in a basic manner. This relatively simplistic design makes the scrap cutter susceptible to various external forces during the cutting process, leading to potential displacement or even detachment. This instability directly impacts the accuracy of scrap cutting, resulting in insufficient precision performance of quick-change scrap cutters in practical applications, making it difficult to meet the demands of high-precision cutting operations. Utility Model Content

[0004] This utility model proposes a quick-change waste cutter for blanking molds to solve the problem of unstable installation of waste cutters in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a quick-change scrap cutter for blanking dies, comprising:

[0006] The lower die cutting edge and the upper punch;

[0007] The first positioning groove is provided at one end of the lower die cutting edge. A matching positioning pin is provided in the first positioning groove. A support plate is provided on the outside of the positioning pin. A second positioning groove is provided at one end of the upper punch. A matching limiting rod is provided in the second positioning groove.

[0008] Multiple guide grooves are provided at one end of the lower die cutting edge. The upper end of the support plate is provided with multiple guide rods that are adapted to the guide grooves. The multiple guide rods are respectively located in the multiple guide grooves. A rotation groove adapted to the guide rods is provided at one end of the lower die cutting edge.

[0009] An adjustment groove is formed inside the lower die cutting edge. The adjustment groove is provided with a matching adjustment plate. The upper end of the positioning pin is provided with an installation groove, and an electric push rod is provided in the installation groove.

[0010] In a preferred embodiment, the upper end of the first positioning groove is provided with multiple limiting grooves, which are respectively connected to multiple guide grooves. Each of the multiple limiting grooves is provided with two abutting pins. The ends of the two abutting pins are hemispherical and arranged in opposite directions. A limiting spring is provided between the two abutting pins.

[0011] To prevent the waste cutter from shifting during installation, the upper ends of the multiple guide rods are provided with abutment grooves that match the abutment pins. The ends of the multiple abutment pins located on one side are respectively located in the multiple abutment grooves. The upper end of the positioning pin is provided with multiple locking grooves. Each of the multiple locking grooves is provided with a compression spring. One end of each of the multiple compression springs is provided with a locking pin that matches the locking groove. The ends of the multiple locking pins are all hemispherical and abut against one end of the multiple abutment pins. The bottom end of the first positioning groove is provided with an annular groove that matches the locking groove.

[0012] In a preferred embodiment, each of the multiple limiting grooves has a snap-fit ​​groove on its sidewall, and each of the multiple abutting pins has a snap-fit ​​ring on its outer side that is adapted to the snap-fit ​​groove. The multiple snap-fit ​​rings are located in the multiple snap-fit ​​grooves and are slidably connected to the sidewall of the snap-fit ​​groove.

[0013] In a preferred embodiment, the bottom end of the adjustment plate is provided with an adjustment block, the bottom end of the adjustment block extends into the first positioning groove and abuts against the output end of the electric push rod, and the upper end of the adjustment plate is provided with a reset spring, the other end of the reset spring being disposed at the upper end of the adjustment groove.

[0014] In a preferred embodiment, a rectangular plate is provided at the upper end of each of the multiple guide grooves, a rectangular groove is provided at the upper end of each of the multiple guide rods, the multiple rectangular plates are respectively located in the multiple rectangular grooves, a connecting groove is provided at the upper end of each of the multiple rectangular plates, a multiple driving plate is provided at the bottom end of the adjusting plate, the multiple driving plates are respectively located in the multiple connecting grooves, and a connecting plate is provided through one side of each of the multiple connecting grooves.

[0015] In order to lock the position of the waste knife, each of the rectangular slots is provided with a fixing slot adapted to the connecting plate, and one end of the connecting plate extends into the fixing slot.

[0016] In a preferred embodiment, each of the multiple drive plates is provided with a plurality of inclined drive slots, and each of the multiple connecting plates is provided with a drive shaft adapted to the drive slot. The multiple drive shafts are respectively located in the multiple drive slots and are slidably connected to the side wall of the drive slot.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. This utility model, through multiple guide grooves set in the lower die cutting edge and multiple guide rods matching the upper end of the support plate, combined with multiple abutting pins in the lower die cutting edge and abutting grooves on one side of the guide rods, can very effectively and precisely limit the installation position of the lower die cutting edge, greatly avoiding any positional deviation that may occur during installation. This not only significantly improves the accuracy of scrap cutting, but also ensures that the blanking die can maintain higher accuracy when quickly changing scrap cutters, thereby improving overall production efficiency and product quality.

[0019] 2. This utility model, through multiple drive plates set at the bottom of the adjusting plate and drive grooves at the top of the drive plates, in conjunction with connecting plates and drive shafts within multiple rectangular plates, can drive multiple drive plates to move when the adjusting plate moves up and down. Furthermore, through the ingenious connection between the drive grooves and drive shafts, multiple connecting plates can move synchronously. This allows the adjusting plate to conveniently and securely lock or release the lower die cutting edge and multiple guide rods during the up and down movement of the drive plates. This not only simplifies the operation process but also greatly enhances the stability of the structure, effectively preventing the lower die cutting edge from falling off during use, and ensuring the stable operation of the mold and the continuity of production. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the main appearance of the structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the front cross-section of the cutting edge of the concave die in this utility model.

[0022] Figure 3 This is a bottom view of the cutting edge of the concave die in the structure of this utility model;

[0023] Figure 4 This is a cross-sectional schematic diagram of the guide rod and rectangular plate of the present invention.

[0024] Figure 5 for Figure 2 A magnified schematic diagram of the structure at point A in the middle.

[0025] In the diagram: 1. Lower die cutting edge; 2. Upper punch; 3. Locating pin; 4. Support plate; 5. Limiting rod; 6. Guide rod; 7. Adjusting plate; 8. Electric push rod; 9. Abutting pin; 10. Limiting spring; 11. Abutting groove; 12. Compression spring; 13. Locking pin; 14. Annular groove; 15. Snap-fit ​​ring; 16. Adjusting block; 17. Rectangular plate; 18. Drive plate; 19. Connecting plate; 20. Drive shaft; 21. Return spring. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0027] Example 1:

[0028] Please see Figure 1-5 This utility model provides a quick-change scrap cutter for blanking dies, comprising:

[0029] Lower die cutting edge 1 and upper punch 2;

[0030] The first positioning groove is opened at one end of the lower die cutting edge 1. The first positioning groove is provided with a matching positioning pin 3. The outer side of the positioning pin 3 is provided with a support plate 4. The upper punch 2 is provided with a second positioning groove at one end. The second positioning groove is provided with a matching limiting rod 5.

[0031] Multiple guide grooves are provided at one end of the lower die cutting edge 1. The upper end of the support plate 4 is provided with multiple guide rods 6 that are adapted to the guide grooves. The multiple guide rods 6 are located in the multiple guide grooves respectively. A rotating groove adapted to the guide rods 6 is provided at one end of the lower die cutting edge 1.

[0032] An adjustment groove is provided in the lower die cutting edge 1. The adjustment groove is equipped with a matching adjustment plate 7. The upper end of the positioning pin 3 is provided with an installation groove, and an electric push rod 8 is provided in the installation groove.

[0033] Specifically, such as Figure 2 and Figure 5 As shown, the upper end of the first positioning groove is provided with multiple limiting grooves, which are connected to multiple guide grooves respectively. Each of the multiple limiting grooves is provided with two abutting pins 9. The ends of the two abutting pins 9 are both hemispherical and are arranged in opposite directions. The same limiting spring 10 is provided between the two abutting pins 9. The limiting spring 10 provided between the two abutting pins 9 can limit the position of movement of the two abutting pins 9 and prevent the two abutting pins 9 from moving excessively.

[0034] Specifically, such as Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, each of the upper ends of the multiple guide rods 6 is provided with an abutment groove 11 that is adapted to the abutment pin 9. The ends of the multiple abutment pins 9 located on one side are respectively located in the multiple abutment grooves 11. The upper end of the positioning pin 3 is provided with multiple locking grooves. Each of the multiple locking grooves is provided with a compression spring 12. Each of the multiple compression springs 12 is provided with a locking pin 13 that is adapted to the locking groove. The ends of the multiple locking pins 13 are all hemispherical and abut against one end of the multiple abutment pins 9 respectively. The bottom end of the first positioning groove is provided with an annular groove 14 that is adapted to the locking groove.

[0035] Through its design, when the abutment pin 9 on one side moves into the abutment groove 11 on the upper side of the guide rod 6, it can restrict the connection position between the lower die cutting edge 1 and the guide rod 6, preventing the lower die cutting edge 1 from shifting position, thereby ensuring the accuracy of the blanking die scrap knife in cutting the scrap. Multiple compression springs 12 and multiple locking pins 13 can respectively push multiple abutment pins 9 to move into multiple abutment grooves 11. The annular groove 14 allows the locking pin 13 to be located in the annular groove 14 when the lower die cutting edge 1 moves upward, so that the lower die cutting edge 1 can rotate.

[0036] Specifically, such as Figure 2 and Figure 5 As shown, multiple limiting grooves are provided with snap-fit ​​grooves on their side walls, and multiple abutment pins 9 are provided with snap-fit ​​rings 15 that are adapted to the snap-fit ​​grooves on their outer sides. Multiple snap-fit ​​rings 15 are located in multiple snap-fit ​​grooves and are slidably connected to the side walls of the snap-fit ​​grooves. The snap-fit ​​rings 15 located in the snap-fit ​​grooves can limit the movement of the abutment pins 9 and prevent their position from shifting.

[0037] Specifically, such as Figure 2 and Figure 5 As shown, the bottom end of the adjusting plate 7 is provided with an adjusting block 16. The bottom end of the adjusting block 16 extends into the first positioning groove and abuts against the output end of the electric push rod 8. The upper end of the adjusting plate 7 is provided with a reset spring 21. The other end of the reset spring 21 is set at the upper end of the adjusting groove. The reset spring 21 can limit the position of the adjusting plate 7. When the electric push rod 8 is started, it will first push the adjusting block 16 and the adjusting plate 7 to move upward. When the adjusting plate 7 moves to the upper end of the adjusting groove, the electric push rod 8 will push the lower die cutting edge 1 to move upward for replacement.

[0038] See Figure 1-5When the lower die cutting edge 1 is installed onto the positioning pin 3, multiple guide rods 6 at the upper end of the support plate 4 enter multiple guide grooves at the bottom of the lower die cutting edge 1. When the lower die cutting edge 1 is installed in place, multiple locking pins 13 at the upper end of the positioning pin 3 enter multiple limiting grooves, which push multiple abutment pins 9 on one side to move. The multiple abutment pins 9 on one side push multiple abutment pins 9 on the other side to move, so that the multiple abutment pins 9 on the other side move into multiple abutment grooves 11 on one side of the upper end of multiple guide rods 6. This effectively limits the position of the lower die cutting edge 1, prevents it from shifting during use, and ensures the accuracy of the scrap cutter of the blanking die in cutting the scrap.

[0039] Example 2:

[0040] Please see Figure 1-5 This utility model provides a quick-change scrap cutter for blanking dies, comprising:

[0041] Lower die cutting edge 1 and upper punch 2;

[0042] The first positioning groove is opened at one end of the lower die cutting edge 1. The first positioning groove is provided with a matching positioning pin 3. The outer side of the positioning pin 3 is provided with a support plate 4. The upper punch 2 is provided with a second positioning groove at one end. The second positioning groove is provided with a matching limiting rod 5.

[0043] Multiple guide grooves are provided at one end of the lower die cutting edge 1. The upper end of the support plate 4 is provided with multiple guide rods 6 that are adapted to the guide grooves. The multiple guide rods 6 are located in the multiple guide grooves respectively. A rotating groove adapted to the guide rods 6 is provided at one end of the lower die cutting edge 1.

[0044] An adjustment groove is provided in the lower die cutting edge 1. The adjustment groove is equipped with a matching adjustment plate 7. The upper end of the positioning pin 3 is provided with an installation groove, and an electric push rod 8 is provided in the installation groove.

[0045] Specifically, such as Figure 2 , Figure 4 and Figure 5 As shown, a rectangular plate 17 is provided at the upper end of multiple guide grooves, and a rectangular groove is provided at the upper end of multiple guide rods 6. The rectangular plates 17 are located in the multiple rectangular grooves respectively. The rectangular plates 17 located in the multiple rectangular grooves can limit the installation position of the lower die cutting edge 1, further ensuring the installation accuracy of the lower die cutting edge 1. A connecting groove is provided at the upper end of multiple rectangular plates 17, and a multiple driving plate 18 is provided at the bottom end of the adjusting plate 7. The multiple driving plates 18 are located in the multiple connecting grooves respectively, and a connecting plate 19 is provided through one side of each of the multiple connecting grooves.

[0046] Specifically, such as Figure 2 , Figure 4 and Figure 5As shown, each of the multiple rectangular slots has a fixing slot on one side that is adapted to the connecting plate 19, and one end of the multiple connecting plates 19 extends into the multiple fixing slots respectively.

[0047] Through its design, when multiple connecting plates 19 move into multiple fixed slots respectively, the position of the lower die cutting edge 1 can be locked, which not only simplifies the operation process, but also greatly enhances the stability of the structure, thereby effectively avoiding the possibility of the lower die cutting edge 1 falling off during use.

[0048] Specifically, such as Figure 4 As shown, multiple drive plates 18 are provided with multiple inclined drive slots, and multiple connecting plates 19 are provided with drive shafts 20 that are adapted to the drive slots. The multiple drive shafts 20 are located in the multiple drive slots and are slidably connected to the side walls of the drive slots. When the drive plates 18 move up and down, the drive shafts 20 can be driven to move horizontally through the inclined drive slots, so that the multiple connecting plates 19 can enter or leave the multiple fixed slots respectively.

[0049] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A quick-change scrap cutter for blanking dies, characterized in that, include: The lower die cutting edge (1) and the upper punch (2); The first positioning groove is opened at one end of the lower die cutting edge (1). The first positioning groove is provided with a matching positioning pin (3). The positioning pin (3) is provided with a support plate (4) on the outside. The upper punch (2) is provided with a second positioning groove at one end. The second positioning groove is provided with a matching limiting rod (5). Multiple guide grooves are provided at one end of the lower die cutting edge (1). The upper end of the support plate (4) is provided with multiple guide rods (6) that are adapted to the guide grooves. The multiple guide rods (6) are located in the multiple guide grooves respectively. One end of the lower die cutting edge (1) is provided with a rotating groove that is adapted to the guide rods (6). An adjustment groove is provided in the lower die cutting edge (1). The adjustment groove is provided with a matching adjustment plate (7). The upper end of the positioning pin (3) is provided with an installation groove. The installation groove is provided with an electric push rod (8).

2. The quick-change scrap cutter for blanking die according to claim 1, characterized in that: The first positioning groove has multiple limiting grooves at its upper end, and the multiple limiting grooves are respectively connected to multiple guide grooves. Each of the multiple limiting grooves is provided with two abutting pins (9). The ends of the two abutting pins (9) are both hemispherical and arranged in opposite directions. The two abutting pins (9) are provided with the same limiting spring (10).

3. A quick-change scrap cutter for blanking molds according to claim 2, characterized in that: Each of the guide rods (6) has an abutment groove (11) on one side of its upper end that is adapted to the abutment pin (9). The ends of the abutment pins (9) located on one side are respectively located in the abutment grooves (11). The positioning pin (3) has a plurality of locking grooves on its upper end. Each of the locking grooves has a compression spring (12). Each of the compression springs (12) has a locking pin (13) at one end that is adapted to the locking groove. The ends of the locking pins (13) are hemispherical and abut against one end of the abutment pins (9). The bottom of the first positioning groove has an annular groove (14) adapted to the locking groove.

4. A quick-change scrap cutter for blanking molds according to claim 2, characterized in that: Each of the limiting grooves has a snap-fit ​​groove on its sidewall, and each of the abutting pins (9) has a snap-fit ​​ring (15) on its outer side that is adapted to the snap-fit ​​groove. The snap-fit ​​rings (15) are located in the snap-fit ​​grooves and are slidably connected to the sidewalls of the snap-fit ​​grooves.

5. A quick-change scrap cutter for blanking molds according to claim 1, characterized in that: The bottom end of the adjustment plate (7) is provided with an adjustment block (16), the bottom end of the adjustment block (16) extends into the first positioning groove and abuts against the output end of the electric push rod (8), the upper end of the adjustment plate (7) is provided with a reset spring (21), and the other end of the reset spring (21) is provided at the upper end of the adjustment groove.

6. A quick-change scrap cutter for blanking molds according to claim 1, characterized in that: The upper end of each of the multiple guide slots is provided with a rectangular plate (17), the upper end of each of the multiple guide rods (6) is provided with a rectangular slot, the multiple rectangular plates (17) are respectively located in the multiple rectangular slots, the upper end of each of the multiple rectangular plates (17) is provided with a connecting slot, the bottom end of the adjustment plate (7) is provided with multiple drive plates (18), the multiple drive plates (18) are respectively located in the multiple connecting slots, and a connecting plate (19) is provided through one side of each of the multiple connecting slots.

7. A quick-change scrap cutter for blanking molds according to claim 6, characterized in that: Each of the rectangular grooves has a fixing groove on one side that is adapted to the connecting plate (19), and one end of each of the connecting plates (19) extends into the fixing groove.

8. A quick-change scrap cutter for blanking molds according to claim 6, characterized in that: Each of the multiple drive plates (18) is provided with multiple inclined drive slots, and each of the multiple connecting plates (19) is provided with a drive shaft (20) adapted to the drive slot. The multiple drive shafts (20) are respectively located in the multiple drive slots and are slidably connected to the side wall of the drive slot.

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