A notch punching die and a notch punching device

Abstract

The present invention provides a notch punching die and a notch punching device. The notch punching die includes: a lower die, an upper die and a punching die; a first through-channel is provided on the lower die, a protruding support block is provided on the top of the lower die, a support portion is formed on the side surface of the support block, the support portion extends away from the support block, and a rib support surface is formed on the top of the support portion; a second through-channel is provided on the upper die, and a side limiting block is provided on one side of the upper die; the upper die, the lower die, the side limiting block and the support portion jointly enclose a fixed space; the punching die movably passes through the fixed space. The notch punching die of the present invention can stably fix the profile and support the ribs of the profile, so that the ribs will not be deformed or damaged during punching, effectively protecting the shape of the ribs of the profile, and can punch two ribs at the same time, with high production efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of punching dies, and particularly relates to a notch punching die and a notch punching device. Background Art

[0002] Punching mainly uses a die installed on a press to apply pressure to a material to cause separation.

[0003] Please refer to Figure 1 , which is a schematic structural view of a profile. For current profiles of frames, such as threshold aluminum profiles, two protruding rib positions 61 are arranged side by side on the profile 60. Notch 62 needs to be punched at the edge of the two rib positions 61. Since the notch 62 positions of the two rib positions 61 overlap in the vertical projection direction, it is difficult for conventional dies to punch, and it is easy to cause damage to the profile 60. Summary of the Invention

[0004] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a notch punching die and a notch punching device.

[0005] An embodiment of the present invention provides a notch punching die, including: a lower die, an upper die, and a punching die. The lower die and the upper die are movably connected, and the punching die movably passes through the upper die and the lower die;

[0006] A first through-channel penetrating the top and bottom of the lower die is provided on the lower die. A protruding support block is provided on the top of the lower die. A support portion is formed on the side surface of the support block. The support portion is located on one side of the first through-channel. The support portion extends away from the support block. A rib support surface is formed on the top of the support portion. A rib avoidance space is formed between the bottom of the support portion and the top of the lower die;

[0007] A second through-channel penetrating the top and bottom of the upper die is provided on the upper die. A side limit block is provided on one side of the upper die. When the upper die and the lower die are closed, the upper die presses against the top of the support block. The side limit block is located on one side of the support portion. The upper die, the lower die, the side limit block, and the support portion jointly enclose a fixed space. The rib avoidance space is located within the fixed space. The first through-channel and the second through-channel are connected to form a guiding channel. The fixed space is connected to the guiding channel and is located between the first through-channel and the second through-channel;

[0008] The punching die extends into the guiding channel from the top of the guiding channel and movably passes through the fixed space.

[0009] Compared with the prior art, the notching die of the present invention can stably fix the profile and support the rib positions of the profile, so that the rib positions will not be deformed or damaged during punching, effectively protecting the shape of the rib positions of the profile, and can punch two rib positions simultaneously, with high production efficiency.

[0010] In some alternative embodiments, the top of the lower die is provided with protruding transverse positioning blocks and longitudinal positioning blocks, and the transverse positioning blocks and the longitudinal positioning blocks are respectively located on both sides of the fixing space.

[0011] In some alternative embodiments, two of the support portions are provided on the side surface of the support block, and the two support portions are respectively located on both sides of the first through-channel. The upper die, the lower die, the side limit blocks and the two support portions together surround and form two fixing spaces, and the fixing spaces are respectively located on both sides of the first through-channel.

[0012] In some alternative embodiments, the height of the rib position avoidance space gradually increases in the direction away from the support block.

[0013] In some alternative embodiments, an inclined portion is provided at the bottom of the punching die, and the inclined portion and the side surface of the punching die away from the support block together form a punching edge.

[0014] In some alternative embodiments, a material guiding groove is provided at the bottom of the punching die, and the inclined portion is provided on the inner wall of the material guiding groove.

[0015] In some alternative embodiments, the notching die further includes: an upper die holder;

[0016] The upper die is arranged at the bottom of the upper die holder, and a plurality of elastic members are arranged between the upper die holder and the upper die. When the upper die approaches the upper die holder, the elastic members generate elastic deformation. The punching die is fixed at the bottom of the upper die holder, and the elastic members are used to provide an elastic stress for pushing the upper die away from the upper die holder.

[0017] In some alternative embodiments, a plurality of guide rods are provided at the bottom of the upper die holder, protruding limit portions are provided on the side surfaces of the guide rods, a plurality of guide holes are provided on the upper die, the guide rods pass through the guide holes, and the limit portions are located below the upper die.

[0018] In some alternative embodiments, an avoidance groove is provided at the top of the lower die. After the upper die and the lower die are closed, the upper die holder drives the punching die to pass through the fixing space, and the guide rods extend into the avoidance groove.

[0019] Another embodiment of the present invention provides a notch punching device, comprising: a translation driving assembly and a notch punching die as described above, wherein the driving assembly is in transmission connection with the upper die and the punching die, driving the upper die to approach or move away from the lower die, and driving the punching die to move in the guiding channel.

[0020] In order to more clearly understand the present invention, the specific embodiments of the present invention will be described below in conjunction with the accompanying drawings. Description of the Drawings

[0021] Figure 1 is a schematic structural diagram of a profile;

[0022] Figure 2 is a schematic structural diagram of a notch punching die according to an embodiment of the present invention;

[0023] Figure 3 is a schematic structural diagram of one side of a notch punching die according to an embodiment of the present invention;

[0024] Figure 4 is a sectional view of a notch punching die in a closed die state according to an embodiment of the present invention;

[0025] Figure 5 is a schematic structural diagram of a lower die and a lower die holder according to an embodiment of the present invention;

[0026] Figure 6 is a schematic structural diagram of a lower die, a lower die holder and a profile according to an embodiment of the present invention;

[0027] Figure 7 is Figure 6 an enlarged view of the position A shown;

[0028] Figure 8 is an exploded view of an upper die and an upper die holder according to an embodiment of the present invention.

[0029] Description of the Reference Numerals:

[0030] 10. Lower die; 11. First through-channel; 12. Support block; 13. Support part; 131. Rib position avoidance space; 14. Rib position avoidance space; 151. Transverse positioning block; 152. Longitudinal positioning block; 16. Avoidance groove; 20. Upper die; 21. Second through-channel; 22. Side limiting block; 23. Fixed space; 24. Guide hole; 30. Punching die; 31. Inclined part; 32. Punching edge; 33. Guide material groove; 40. Upper die holder; 41. Guide sleeve; 42. Elastic part; 43. Guide rod; 44. Limiting part; 45. Positioning die handle; 50. Lower die holder; 51. Guide post; 60. Profile; 61. Rib position; 62. Notch. Detailed Embodiments

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0032] In the description of the invention, unless otherwise specified, the meaning of "a plurality" is two or more. In the description of the invention, unless otherwise specified, the meaning of "several" is one or more.

[0033] Please refer to Figure 2 , which is a schematic structural diagram of a notch punching die according to an embodiment of the present invention. The notch punching die includes: a lower die 10, an upper die 20, and a punching die 30. The lower die 10 and the upper die 20 are movably connected, and the punching die 30 movably passes through the upper die 20 and the lower die 10.

[0034] In this embodiment, in order to facilitate the mold closing and demolding of the upper die 20 and the lower die 10, the notch punching die further includes an upper die holder 40 and a lower die holder 50. A plurality of guide sleeves 41 are provided on the upper die holder 40, and a plurality of guide posts 51 are provided on the lower die holder 50. The guide sleeves 41 are sleeved outside the guide posts 51 and move up and down along the guide posts 51. The upper die 20 is provided at the bottom of the upper die holder 40, and the lower die 10 is provided at the top of the lower die holder 50. The upper die 20 and the lower die 10 are movably connected by the movement cooperation of the upper die holder 40 and the lower die holder 50. Of course, guide posts 51 can also be provided on the upper die holder 40, and guide sleeves 41 can be provided on the lower die 10. When the upper die 20 moves, the guide posts 51 move along the guide sleeves 41.

[0035] Please refer to Figure 3 , Figure 4 and Figure 5 , Figure 3 is a schematic structural diagram of one side of a notch punching die according to an embodiment of the present invention, Figure 4 is a cross-sectional view of a notch punching die according to an embodiment of the present invention when the mold is closed, Figure 5It is a schematic structural diagram of a lower die and a lower die holder according to an embodiment of the present invention. A first through-channel 11 penetrating the top and bottom of the lower die 10 is provided on the lower die 10. A protruding support block 12 is provided on the top of the lower die 10. A support portion 13 is formed on the side surface of the support block 12. The support portion 13 is located on one side of the first through-channel 11. The support portion 13 extends away from the support block 12. A rib support surface 131 is formed on the top of the support portion 13. A rib avoidance space 14 is formed between the bottom of the support portion 13 and the top of the lower die 10. A second through-channel 21 penetrating the top and bottom of the upper die 20 is provided on the upper die 20. A side limit block 22 is provided on one side of the upper die 20. When the upper die 20 and the lower die 10 are closed, the upper die 20 presses against the top of the support block 12. The side limit block 22 is located on one side of the support portion 13. The upper die 20, the lower die 10, the side limit block 22 and the support portion 13 jointly enclose a fixed space 23. The rib avoidance space 14 is located within the fixed space 23. The first through-channel 11 and the second through-channel 21 are communicated to form a guiding channel. The fixed space 23 is communicated with the guiding channel and is located between the first through-channel 11 and the second through-channel 21. The punching die 30 extends into the guiding channel from the top of the guiding channel and movably passes through the fixed space 23.

[0036] Please refer to Figure 6 and Figure 7 , Figure 6 is a schematic structural diagram of the lower die, the lower die holder and the profile according to an embodiment of the present invention. Figure 7 is Figure 6 an enlarged view of the position A shown in. When in use, the upper die 20 and the lower die 10 are separated. The profile 60 is placed on the top of the lower die 10. The support portion 13 extends into the two ribs 61 of the profile 60. The end of the support portion 13 abuts against one side of the profile 60. The rib 61 below the profile 60 extends into the rib avoidance space 14. The bottom of the rib 61 below the profile 60 abuts against the top of the lower die 10. The bottom of the rib 61 above the profile 60 abuts against the rib support surface 131 of the support portion 13. The upper die 20 and the lower die 10 are closed. The upper die 20 presses the rib 61 above the profile 60 against the rib support surface 131. The side limit block 22 abuts against the side of the profile 60 away from the support portion 13, thereby fixing the profile. Then the punching die 30 passes through the second through-channel 21 and enters the fixed space 23, sequentially punching the rib 61 above the profile 60 and the rib 61 below the profile 60, and then enters the first through-channel 11, so that a notch 62 is formed on the rib 61 of the profile 60, and the waste material detaches from the first through-channel 11.

[0037] Since the rib position support surface 131 of the support portion 13 supports the rib position 61, it prevents the upper rib position 61 from deforming when the punching die 30 punches downward on the upper rib position 61 of the profile 60. When the punching die 30 punches downward on the lower rib position 61 of the profile 60, the top of the lower die 10 also supports the lower rib position 61, enabling the punching die 30 to punch two rib positions 61 simultaneously and making it difficult for the rib position 61 to deform.

[0038] In some alternative embodiments, two support portions 13 are provided on the side surface of the support block 12. The two support portions 13 are respectively located on both sides of the first through-channel 11. The upper die 20, the lower die 10, the side limit block 22, and the two support portions 13 jointly enclose two fixed spaces 23, which are respectively located on both sides of the first through-channel 11. In this embodiment, the first through-channel 11 also penetrates the top and bottom of the support block 12.

[0039] To facilitate the positioning of the profile 60, in some alternative embodiments, a protruding horizontal positioning block 151 and a longitudinal positioning block 152 are provided on the top of the lower die 10. The horizontal positioning block 151 and the longitudinal positioning block 152 are respectively located on both sides of the fixed space 23. The horizontal positioning block 151 positions the end of the profile 60, and the longitudinal positioning block 152 positions the long side of the profile 60, ensuring that the profile 60 is in the correct position before the die is closed. In this embodiment, the horizontal positioning block 151 is located between the two fixed spaces 23, facilitating the positioning of the profile 60 in the two fixed spaces 23 respectively. The structures of the horizontal positioning block 151 and the longitudinal positioning block 152 can be selected according to actual needs and in combination with the shape of the profile 60. Additionally, the horizontal positioning block 151 can partially extend between the upper die 20 and the lower die 10. In this embodiment, a relief depression for avoiding the horizontal positioning block 151 is also provided at the bottom of the upper die 20.

[0040] To facilitate the entry / exit of the rib position 61 below the profile 60 into / from the rib position relief space 14, in some alternative embodiments, the height of the rib position relief space 14 gradually increases in the direction away from the support block 12, causing the rib position relief space 14 to gradually expand in the direction away from the support block 12. The rib position relief space 14 can prevent the support portion 13 from rubbing against the lower rib position 61.

[0041] To facilitate the punching of the rib position 61, in some alternative embodiments, an inclined portion 31 is provided at the bottom of the punching die 30. The inclined portion 31 and the side surface of the punching die 30 away from the support block 12 jointly form a punching edge 32, which extends along the extension direction of the rib position 61. During punching, it punches towards the root of the rib position 61.

[0042] In some alternative embodiments, in order to facilitate guiding the waste material to fall, a material guiding groove 33 is provided at the bottom of the punching die 30, and the inclined portion 31 is provided on the inner wall of the material guiding groove 33.

[0043] Please refer to Figure 8 , which is an exploded view of the upper die and the upper die holder of an embodiment of the present invention. In some alternative embodiments, the notch punching die further includes an upper die holder 40; the upper die 20 is provided at the bottom of the upper die holder 40, and a plurality of elastic members 42 are provided between the upper die holder 40 and the upper die 20. The punching die 30 is fixed to the bottom of the upper die holder 40, and the upper die holder 40 is connected to the translation driving assembly of the notch punching die. The elastic member 42 is used to provide an elastic stress for pushing the upper die 20 away from the upper die holder 40. Before punching, there is a certain distance between the upper die 20 and the upper die holder 40. When the upper die holder 40 descends, the upper die 20 first abuts against the lower die 10 and closes the die with the lower die 10 to fix the profile 60; the upper die holder 40 continues to approach the lower die 10, the elastic member 42 undergoes elastic deformation, and the punching die 30 passes through the second through-channel 21 and enters the fixed space 23 to punch the profile 60; after punching is completed, the upper die holder 40 moves upward, the punching die 30 gradually disengages from the fixed space 23, and the elastic member 42 keeps the upper die 20 in a state of pressing the profile 60 tightly. After the punching die 30 disengages from the fixed space 23, the elastic member 42 returns to its original shape, and the upper die 20 is driven by the upper die holder 40 to disengage from the lower die 10. This design can make the profile 60 be stably fixed before and after punching, and only one translation driving assembly is needed to drive the upper die holder 40 to move. The elastic member 42 can be selected with a suitable design according to actual needs. In this embodiment, the elastic member 42 is a spring, but this is not limited to this example.

[0044] In some alternative embodiments, in order to make the upper die 20 move stably relative to the upper die holder 40, a plurality of guide rods 43 are provided at the bottom of the upper die holder 40. A protruding limiting portion 44 is provided on the side surface of the guide rod 43. A plurality of guide holes 24 are provided on the upper die 20. The guide rods 43 pass through the guide holes 24, and the limiting portion 44 is located below the upper die 20 and is in limiting cooperation with the bottom of the upper die 20.

[0045] In some alternative embodiments, an avoidance groove 16 is provided at the top of the lower die 10. After the upper die 20 and the lower die 10 are closed, the upper die holder 40 drives the punching die 30 to pass through the fixed space 23, and the guide rods 43 extend into the avoidance groove 16 to prevent the guide rods 43 from colliding with the lower die 10.

[0046] The aforementioned notch punching die can be used in a notch punching device, which includes: a translation drive assembly and a notch punching die such as the one described above. The translation drive assembly is in transmission connection with the upper die 20 and the punching die 30, driving the upper die 20 toward or away from the lower die 10 and driving the punching die 30 to move within the guide channel. The translation drive assembly can be a cylinder drive assembly, etc. In this embodiment, the translation drive assembly is a press. To facilitate assembly of the upper die frame 40 with the translation drive assembly, a protruding positioning die handle 45 is provided on the top of the upper die frame 40. The positioning die handle 45 facilitates positioning and mating with the translation drive assembly.

[0047] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A notching and punching die, characterized in that, include: A lower die, an upper die and a punching die, wherein the lower die and the upper die are movably connected, and the punching die movably passes through the upper die and the lower die; The lower mold is provided with a first through-passage running through the top and bottom of the lower mold, a protruding support block is provided on the top of the lower mold, a support portion is formed on the side of the support block, the support portion is located on one side of the first through-passage, the support portion extends away from the support block, a rib support surface is formed on the top of the support portion, and a rib avoidance space is formed between the bottom of the support portion and the top of the lower mold; The upper mold is provided with a second through-passage that passes through the top and bottom of the upper mold, and a side limit block is provided on one side of the upper mold. When the upper mold and the lower mold are closed, the upper mold is pressed against the top of the support block, and the side limit block is located on one side of the support portion. The upper mold, the lower mold, the side limit block and the support portion are jointly surrounded to form a fixed space, and the rib avoidance space is located in the fixed space. The first through-passage is connected to the second through-passage to form a guide channel, and the fixed space is connected to the guide channel and is located between the first through-passage and the second through-passage; The punching die extends into the guide channel from the top of the guide channel and moves through the fixed space.

2. The notching and punching die according to claim 1, wherein: The top of the lower mold is provided with a protruding transverse positioning block and a longitudinal positioning block, and the transverse positioning block and the longitudinal positioning block are respectively located on both sides of the fixed space.

3. The notching and punching die according to claim 1, characterized in that: Two supporting parts are provided on the side of the support block, and the two supporting parts are respectively located on both sides of the first through channel. The upper mold, the lower mold, the side limit block and the two supporting parts are jointly surrounded to form two fixed spaces, and the fixed spaces are respectively located on both sides of the first through channel.

4. The notch punching die according to claim 1, characterized in that: The height of the rib avoidance space gradually increases in a direction away from the support block.

5. The notch punching die according to any one of claims 1 to 4, characterized in that: The bottom of the punching die is provided with an inclined portion, and the inclined portion and the side surface of the punching die away from the support block together form a punching edge.

6. A notch punching die according to claim 5, characterized in that: A material guiding groove is provided at the bottom of the punching die, and the inclined portion is provided on the inner wall of the material guiding groove.

7. A notch punching die according to any one of claims 1 to 4, characterized in that: Also includes: Upper mold frame; The upper die is arranged at the bottom of the upper die frame, and a plurality of elastic members are arranged between the upper die frame and the upper die. When the upper die approaches the upper die frame, the elastic members generate elastic deformation, and the punching die is fixed at the bottom of the upper die frame.

8. The notch punching die according to claim 7, characterized in that: A plurality of guide rods are provided at the bottom of the upper mold frame, a protruding limiting portion is provided on the side of the guide rod, a plurality of guide holes are provided on the upper mold, the guide rods pass through the guide holes, and the limiting portion is located below the upper mold.

9. The notching and punching die according to claim 8, characterized in that: An avoidance groove is provided on the top of the lower die. After the upper die and the lower die are closed, the upper die frame drives the punching die to pass through the fixed space, and the guide rod extends into the avoidance groove.

10. A notch punching device, characterized in that: include: A translation drive assembly and a notch punching die as described in any one of claims 1 to 9, wherein the translation drive assembly is transmission-connected to the upper die and the punching die, drives the upper die to approach or move away from the lower die, and drives the punching die to move in the guide channel.

Images