Blanking type blister tray punching die

Abstract

The present application relates to the technical field of die punching, and in particular to a blanking-type blister plate punching die, comprising an upper die and a lower die, wherein the lower die is provided with a die guide post, the upper die is slidably mounted on the die guide post, a blanking hole is formed on the lower die, a punch is provided on the upper die, a stamping die is provided between the upper and lower dies, the stamping die is slidably mounted on the die guide post, a cutting knife and a punching hole for the punch to pass through are provided on the stamping die, a receiving cavity connected to the blanking hole is formed in the lower die, a drive assembly is provided in the receiving cavity, a lifting column is slidably mounted in the blanking hole, the drive assembly is connected to the lifting column, a cavity is provided in the lifting column, and a grinding mechanism for grinding burrs is provided in the cavity. The present application can eliminate burrs and prevent deformation of blister plates, thereby helping to achieve better punching effects.

Description

Technical Field

[0001] The present application relates to the technical field of die punching, and in particular to a blanking type blister tray punching die. Background Art

[0002] In the production process of blister trays, the raw material strip (hereinafter referred to as the strip) is softened and then conveyed to the blister forming area for blister forming. After forming, it is conveyed to the punching and cutting mold. The punching mold is provided with a punch and a punching knife. The punching knife is used to cut the blister tray from the strip after blister forming. At the same time, the punch punches the blister tray. The lower die is provided with a blanking hole, and the waste material punched off the blister tray falls into the blanking hole.

[0003] After the punch is completed on the blister tray, burrs are likely to appear in the punching area on the blister tray, thereby affecting the punching effect of the blister tray. Summary of the Invention

[0004] In order to solve the problem that the use effect of the blister tray is affected by the problems caused by punching, the present application provides a blanking type blister tray punching die.

[0005] The present application provides a blanking type blister tray punching die, which adopts the following technical solution: a blanking type blister tray punching die, comprising an upper die and a lower die, the lower die being provided with a die guide post, the upper die being slidably mounted on the die guide post, the lower die being provided with a blanking hole, the upper die being provided with a punch, a stamping die being provided between the upper and lower dies, the stamping die being slidably mounted on the die guide post, the stamping die being provided with a cutting knife and a punching hole for the punch to pass through, an accommodating cavity connected to the blanking hole being provided in the lower die, a driving assembly being provided in the accommodating cavity, a lifting column being slidably mounted in the blanking hole, the driving assembly being connected to the lifting column, a cavity being provided in the lifting column, and a grinding mechanism for grinding burrs being provided in the cavity.

[0006] By adopting the above technical solution, the lifting column is driven to rise and fall by the driving component. When the punch punches the blister disc, the lifting column can support the blister disc to avoid deformation of the blister disc during punching. After the punching is completed, the punching position is polished by the polishing mechanism to eliminate burrs in the punching area, thereby ensuring the punching effect.

[0007] In a specific embodiment, a cutting ring is provided on the punch, and a gap is provided between the lifting column and the blanking hole for the cutting ring to pass through.

[0008] By adopting the above technical solution, when the cutting ring is cutting the blister disc, the lifting column can support the blister disc, thereby ensuring a better cutting effect.

[0009] In a specific possible implementation scheme, a lifting groove is provided on the inner wall of the blanking hole, and a lifting block is provided on the outer wall of the lifting column, and the lifting block is slidably installed in the lifting groove.

[0010] By adopting the above technical solution, by slidingly installing the lifting block in the lifting groove, the lifting column can be lifted and lowered more stably in the blanking hole, and the lifting column can be prevented from deflecting during the lifting process as much as possible.

[0011] In a specific possible implementation scheme, the drive assembly includes a drive motor, a gear and a rack. The drive motor is mounted on the inner wall of the accommodating chamber, the gear is arranged on the output shaft of the drive motor, the rack is slidably mounted in the accommodating chamber, and a connecting rod is rotatably connected to the rack, and the connecting rod is rotatably connected to the bottom of the lifting column.

[0012] By adopting the above technical solution, the gear is driven to rotate by the driving motor, and the gear drives the rack to rotate, thereby driving the rack to slide in the accommodating cavity. When the rack moves toward the side close to the lifting column, the lifting column is driven to rise through the connecting rod. When the rack moves toward the side away from the lifting column, the connecting rod drives the lifting rod to descend.

[0013] In a specific possible implementation scheme, a waste cavity is opened in the lower mold on one side of the blanking hole, and a stopper is provided on the side wall of the blanking hole, and the stopper is arranged on the side wall on the side opposite to the waste cavity.

[0014] By adopting the above technical solution and setting a stopper, after the cutting is completed, the cut waste material descends with the lifting column, and the stopper exerts an upward force on the cut waste material, causing the waste material to tilt to one side and fall into the waste material cavity, making it easier to clean and store the waste material.

[0015] In a specific possible implementation scheme, the grinding mechanism includes a grinding piece and a telescopic assembly, the telescopic assembly is connected to the grinding piece, the lifting column includes a mounting portion and a connecting portion, a connecting rod is provided on the inner bottom wall of the mounting portion, the connecting rod is connected to the mounting portion, and a grinding groove for the grinding piece to pass through is provided between the mounting portion and the connecting portion.

[0016] By adopting the above technical solution, the grinding part can grind the blister disk in the punching area and eliminate burrs as much as possible. The telescopic component can retract the grinding part into the cavity, making it easier for the lifting column to rise and fall in the blanking hole, and also making it easier for the grinding part to grind the punching area after the stamping is completed.

[0017] In a specific embodiment, the grinding piece is L-shaped.

[0018] By adopting the above technical solution and setting the grinding piece to be L-shaped, when grinding the punching area, the bottom wall of the side wall of the punching area can be ground at the same time, which helps to improve the grinding efficiency, achieve better grinding effect, and facilitate the elimination of burrs.

[0019] In a specific possible implementation scheme, a connecting ring is provided on the inner wall of the cavity, a clamping groove and a rotating groove are provided on the connecting ring, a clamping block is provided on the grinding piece, the clamping block is slidably installed in the clamping groove, the rotating groove is connected to the clamping groove, and the rotating groove is in a circular ring shape.

[0020] By adopting the above technical solution, by setting the clamping block and the clamping slot, the grinding piece can be moved on the connecting ring, which makes it convenient for the grinding piece to extend out of the cavity and also convenient for the grinding piece to be put into the cavity. By setting the rotating groove, the grinding piece can rotate in the rotating groove. The rotating groove can limit the grinding piece and try to avoid the grinding piece from being offset during rotation and grinding.

[0021] In a specific feasible implementation scheme, the telescopic assembly includes a lifting sleeve, which is arranged on the rotating rod and is threadedly engaged with the rotating rod. A limit strip is provided on the side wall of the lifting sleeve, and a limit groove is provided on the inner wall of the mounting portion. The limit strip is slidably installed in the limit groove, and a fixed motor is provided in the cavity, and the fixed motor is transmission-connected to the rotating rod.

[0022] By adopting the above technical solution, the fixed motor drives the rotating rod to rotate, and under the limiting action of the limiting groove on the limiting bar, the lifting sleeve can be lifted and lowered along the rotating rod.

[0023] In a specific possible implementation scheme, the telescopic assembly also includes a rotating sleeve and a telescopic rod, the rotating sleeve is arranged on the rotating rod, the rotating sleeve is arranged at one end close to the polishing piece, one end of the telescopic rod is rotatably connected to the rotating sleeve, and the other end is rotatably connected to the polishing piece, a rotating motor is provided in the cavity, and the rotating motor is transmission-connected to the rotating sleeve.

[0024] By adopting the above technical solution, the fixed motor drives the lifting sleeve to rise and fall, the lifting sleeve drives the rotating sleeve to rise and fall, and the rotating sleeve drives the grinding piece to move in the slot through the telescopic rod, which makes it easy to extend the grinding piece into the cavity and also makes it easy to put the grinding piece into the cavity.

[0025] In summary, this application includes at least one of the following beneficial technical effects:

[0026] 1. When the punch is punching the blister disc, the lifting column can support the blister disc to avoid deformation of the blister disc during punching. After the punching is completed, the punching position is polished by the polishing mechanism to eliminate the burrs in the punching area, thereby ensuring the punching effect;

[0027] 2. During the punching process, the cutting ring applies downward pressure to the blister plate, and the lifting column applies upward pressure to the blister plate, which can minimize the deformation of the blister plate during punching;

[0028] 3. By setting the grinding piece to be L-shaped, when grinding the punching area, the bottom wall of the side wall of the punching area can be ground at the same time, which helps to improve the grinding efficiency, achieve better grinding effect, and facilitate the elimination of burrs. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0030] Figure 2 It is a structural schematic diagram of the upper die and the stamping die in the embodiment of the present application.

[0031] Figure 3 It is a cross-sectional view of the internal structure of an embodiment of the present application.

[0032] Figure 4 yes Figure 3 Enlarged view of point A in the middle.

[0033] Figure 5 It is a cross-sectional view of the internal structure of the lifting column in an embodiment of the present application.

[0034] Figure 6 2 is a top view of the lifting column in the embodiment of the present application.

[0035] Description of reference numerals:

[0036] 1. Upper die; 11. Punch; 12. Cutting ring; 2. Lower die; 21. Die guide pin; 22. Blanking hole; 23. Lifting column; 231. Mounting portion; 232. Connecting portion; 233. Rotating rod; 234. Fixing table; 235. Fixed motor; 236. First bevel gear; 237. Second bevel gear; 238. Grinding groove; 24. Accommodating chamber; 25. Cavity; 26. Lifting groove; 28. Stopper; 29. ​​Waste chamber; 3. Stamping die; 31. Cutting knife; 32. Positioning rod; 33. Punching hole; 4. Driving assembly; 41. Driving motor; 42. Gear; 43. Rack; 44. Motor plate; 45. Slide; 46. Slider; 47. Connecting rod; 5. Grinding mechanism; 51. Grinding piece; 52. Telescopic assembly; 521. Lifting sleeve; 522. Rotating sleeve; 523. Telescopic rod; 524. Limiting strip; 525. Limiting slot; 53. Connecting ring; 54. Slot; 55. Block; 56. Rotating slot; 57. Mounting plate; 58. Rotating motor; 59. Third bevel gear; 60. Fourth bevel gear. DETAILED DESCRIPTION

[0037] The present application is further described in detail below with reference to the accompanying drawings.

[0038] The present application discloses a blanking type blister tray punching die, referring to Figure 1 and Figure 2 The blanking type blister tray punching die includes an upper die 1 and a lower die 2, a die guide post 21 is fixed on the lower die 2, the upper die 1 is slidably installed on the die guide post 21, a punch 11 is fixed on the upper die 1, and a stamping die 3 is also slidably installed on the die guide post 21. The stamping die 3 is arranged between the upper die 1 and the lower die 2, and a cutting knife 31 and a positioning rod 32 are fixed on the stamping die 3. The cutting knife 31 forms a rectangular frame for cutting the blister tray from the material strip, and the positioning rod 32 is arranged in the frame surrounded by the cutting knife 31 for pressing and positioning the blister tray.

[0039] Reference Figure 2 and Figure 3 The punching die 3 is also provided with a punching hole 33, which passes through the punching die 3 and is arranged in a rectangular frame surrounded by the cutting blade 31. The punching hole 33 is used for the punch 11 to pass through. A cutting ring 12 is provided on the bottom wall of the punch 11 facing the lower die 2. A blanking hole 22 is provided on the lower die 2. A lifting column 23 is provided in the blanking hole 22, and a gap is formed between the lifting column 23 and the blanking hole 22. When punching a blister disk, the upper die 1 drives the punch 11 downward, the cutting ring 12 contacts the blister disk, and applies downward pressure to the blister disk. The top wall of the lifting column 23 applies an upward force to the blister disk, which facilitates punching of the blister disk.

[0040] Reference Figure 3 A receiving cavity 24 communicating with the blanking hole 22 is provided in the lower mold 2. A driving component 4 is provided in the receiving cavity 24. The driving component 4 is connected to the lifting column 23. The driving component 4 is used to drive the lifting column 23 to move up and down.

[0041] Reference Figure 3 and Figure 4The drive assembly 4 includes a drive motor 41, a gear 42, and a rack 43. A motor plate 44 is fixed to the inner wall of the accommodating chamber 24. The drive motor 41 is fixed to the motor plate 44. The gear 42 is coaxially fixed to the output shaft of the drive motor 41. A slot 45 is defined in the inner bottom wall of the accommodating chamber 24. A slider 46 is fixed to the bottom wall of the rack 43. The slider 46 slides within the slot 45, and the gear 42 meshes with the rack 43. The drive motor 41 drives the gear 42 to rotate, which in turn drives the rack 43 to slide within the slot 45. A connecting rod 47 is hinged to the top wall of the rack 43. The connecting rod 47 is hinged to the bottom wall of the lifting column 23, allowing the drive motor 41 to rotate and move the lifting column 23 upward and downward within the blanking hole 22. A lifting slot 26 is defined in the inner wall of the blanking hole 22. A lifting block (not shown) is fixed to the outer wall of the lifting column 23 and slides within the slot 26. A stopper 28 is fixed on the inner wall of the blanking hole 22 , and a waste cavity 29 is provided in the lower die 2 on the side opposite to the stopper 28 . The waste cavity 29 can receive the waste material cut by punching.

[0042] Reference Figure 3 and Figure 4 When the rack 43 moves toward the side close to the lifting column 23, the rack 43 can drive the lifting column 23 to rise through the connecting rod 47. When punching, the lifting column 23 applies an upward force to the blister disk, which facilitates punching of the blister disk; when the rack 43 moves toward the side away from the lifting column 23, the rack 43 can drive the lifting column 23 to descend through the connecting rod 47. After punching is completed, the lifting column 23 descends with the waste. When the waste contacts the stopper 28, the stopper 28 pushes the waste to tilt toward the side of the waste chamber 29, so that the waste falls into the waste chamber 29, which is convenient for collecting the waste.

[0043] Reference Figure 5 and Figure 6The lifting column 23 has a cavity 25 within it, and a grinding mechanism 5 is located within the cavity 25. The grinding mechanism 5 grinds the blister disc in the punching area. The lifting column 23 includes a mounting portion 231 and a connecting portion 232. A rotating rod 233 is rotatably connected to the inner bottom wall of the mounting portion 231 via a bearing. The connecting portion 232 is rotatably connected to the rotating rod 233 via a bearing. A fixed platform 234 is fixed to the inner bottom wall of the lifting column 23. A fixed motor 235 is fixed to the fixed platform 234. A first bevel gear 236 is coaxially fixed to the output shaft of the fixed motor 235. A second bevel gear 237 is coaxially fixed to the bottom of the rotating rod 233. The first bevel gear 236 meshes with the second bevel gear 237. A grinding groove 238 is provided between the mounting portion 231 and the connecting portion 232. The grinding mechanism 5 includes a grinding piece 51 and a telescopic assembly 52. ​​The telescopic assembly 52 is connected to the grinding piece 51 and can retract the grinding piece 51 from the grinding groove 238 into the cavity 25. The telescopic assembly 52 includes a lifting sleeve 521, which is mounted on the rotating rod 233 and threadedly engaged with the rotating rod 233. The lifting sleeve 521 is provided with a limit bar 524. The inner wall of the mounting portion 231 defines a limit slot 525, and the limit bar 524 is slidably mounted within the limit slot 525. The fixed motor 235 drives the first bevel gear 236 to rotate, which in turn drives the second bevel gear 237 and the rotating rod 233 to rotate. Under the restraining action of the limit bar 524, the lifting sleeve 521 can be raised and lowered.

[0044] Reference Figure 5 and Figure 6 The polishing piece 51 is specifically a polishing disc. The cross section of the polishing piece 51 is L-shaped. After the blister disc is punched, the burrs are mainly concentrated on the side walls and bottom walls of the punching hole. Setting the cross section of the polishing piece 51 to be L-shaped can polish the side walls and bottom walls of the punching hole, which helps to eliminate burrs and ensure the stamping effect of the product. The surface of the polishing piece 51 in contact with the side wall of the punching hole is an arc surface, which will not cause damage to the inner wall of the punching hole during the polishing process. A connecting ring 53 is fixed on the inner wall of the lifting column 23, and a card slot 54 is provided on the top wall of the connecting ring 53. A card block 55 is fixed on the side wall of the polishing piece 51 facing the rotating rod 233. The card block 55 is slidably installed in the card slot 54, and the card slot 54 limits the polishing piece 51. A rotating groove 56 is also provided on the top of the connecting ring 53. The rotating groove 56 is annular and is connected to the card slot 54, so that the polishing piece 51 can rotate in the rotating groove 56.

[0045] Reference Figure 5 and Figure 6The telescopic assembly 52 also includes a rotating sleeve 522 and a telescopic rod 523. The rotating sleeve 522 is sleeved on the rotating rod 233 and slides with the rotating rod 233. The rotating sleeve 522 is arranged at one end of the rotating rod 233 near the connecting portion 232. A mounting plate 57 is fixed on the inner wall of the lifting column 23. A rotating motor 58 is fixed on the mounting plate 57. A third bevel gear 59 is coaxially fixed on the output shaft of the rotating motor 58. A fourth bevel gear 60 is coaxially fixed to the bottom of the rotating sleeve 522. During the rising process, the lifting sleeve 521 can drive the rotating sleeve 522 to rise. When the third bevel gear 59 is engaged with the fourth bevel gear 60, the rotating motor 58 can drive the lifting sleeve 521 to rotate, so that the lifting sleeve 521 drives the grinding piece 51 to rotate, thereby realizing the grinding of the punching area of ​​the blister plate. After the grinding is completed, the fixed motor 235 drives the rotating rod 233 to rotate in the opposite direction, causing the lifting sleeve 521 to descend, thereby causing the rotating sleeve 522 to descend, and the rotating sleeve 522 drives the telescopic rod 523 to retract into the cavity 25, thereby driving the grinding piece 51 to move into the cavity 25, shrinking the grinding piece 51, and facilitating the lifting and lowering of the lifting column 23 in the blanking hole 22.

[0046] The operating principle of the embodiment of the present application is as follows: After the material strip moves to the punching station, the drive motor 41 drives the rack 43 toward the side closer to the lifting column 23, causing the top of the lifting column 23 to contact the blister disk. The upper die 1 and the punching die 3 descend, the cutting blade 31 cuts the blister disk from the material strip, and the punch 11 punches the blister disk 33. After punching 33, the drive motor 41 rotates in the opposite direction, moving the rack 43 away from the lifting column 23, driving the lifting column 23 downward. The waste material from the punching is lowered along with the lifting column 23 and, under the action of the stopper 28, enters the waste material chamber 29.

[0047] The drive motor 41 again drives the rack 43 toward the side of the lifting column 23, causing the lifting column 23 to rise. The fixed motor 235 rotates the rotating rod 233, causing the lifting sleeve 521 to rise. The lifting sleeve 521 then drives the rotating sleeve 522 to rise. The rotating sleeve 522, via the telescopic rod 523, pushes the grinding member 51 into the cavity 25, causing the grinding member 51 to contact the side and bottom walls of the punching hole 33. When the rotating sleeve 522 rises to the point where the third bevel gear 59 meshes with the fourth bevel gear 60, the rotating motor 58 drives the rotating sleeve 522 to rotate, thereby driving the grinding member 51 to grind the punching hole 33 area.

[0048] After the grinding is completed, the fixed motor 235 rotates in the opposite direction, causing the lifting sleeve 521 and the rotating sleeve 522 to descend, and the grinding piece 51 is received in the cavity 25 .

[0049] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A blanking type blister plate punching die, comprising an upper die (1) and a lower die (2), wherein the lower die (2) is provided with a die guide post (21), the upper die (1) is slidably mounted on the die guide post (21), the lower die (2) is provided with a blanking hole (22), and the upper die (1) is provided with a punch (11), characterized in that: A punching die (3) is provided between the upper die (1) and the lower die (2), the punching die (3) being slidably mounted on a die guide column (21), the punching die (3) being provided with a cutting knife (31) and a punching hole (33) for a punch (11) to pass through, a receiving cavity (24) being provided in the lower die (2) and communicating with the blanking hole (22), a driving assembly (4) being provided in the receiving cavity (24), a lifting column (23) being slidably mounted in the blanking hole (22), the driving assembly (4) and the lifting column (23) being slidably mounted in the blanking hole (22), 3), a cavity (25) is provided in the lifting column (23), a grinding mechanism (5) for grinding burrs is provided in the cavity (25); the grinding mechanism (5) includes a grinding piece (51) and a telescopic assembly (52), the telescopic assembly (52) is connected to the grinding piece (51), the lifting column (23) includes a mounting portion (231) and a connecting portion (232), a connecting rod (47) is provided on the inner bottom wall of the mounting portion (231), the connecting rod (47) is connected to the mounting portion (231), A grinding groove (238) for the grinding piece (51) to pass through is provided between the mounting portion (231) and the connecting portion (232); a connecting ring (53) is provided on the inner wall of the cavity (25); a clamping groove (54) and a rotating groove (56) are provided on the connecting ring (53); a clamping block (55) is provided on the grinding piece (51); the clamping block (55) is slidably installed in the clamping groove (54); the rotating groove (56) is connected to the clamping groove (54); and the rotating groove (56) is annular; the telescopic assembly The component (52) includes a lifting sleeve (521), the lifting sleeve (521) is sleeved on the rotating rod (233) and threadedly engaged with the rotating rod (233), a limiting strip (524) is provided on the side wall of the lifting sleeve (521), a limiting groove (525) is provided on the inner wall of the mounting portion (231), the limiting strip (524) is slidably mounted in the limiting groove (525), a fixed motor (235) is provided in the cavity (25), and the fixed motor (235) is transmission-connected to the rotating rod (233).

2. The blanking type blister tray punching die according to claim 1, characterized in that: A cutting ring (12) is provided on the punch (11), and a gap for the cutting ring (12) to pass through exists between the lifting column (23) and the blanking hole (22).

3. The blanking type blister tray punching die according to claim 2, characterized in that: A lifting groove (26) is provided on the inner wall of the blanking hole (22), and a lifting block is provided on the outer wall of the lifting column (23). The lifting block is slidably installed in the lifting groove (26).

4. The blanking type blister tray punching die according to claim 3, characterized in that: The driving assembly (4) comprises a driving motor (41), a gear (42) and a rack (43); the driving motor (41) is mounted on the inner wall of the accommodating cavity (24); the gear (42) is arranged on the output shaft of the driving motor (41); the rack (43) is slidably mounted in the accommodating cavity (24); a connecting rod (47) is rotatably connected to the rack (43); and the connecting rod (47) is rotatably connected to the bottom of the lifting column (23).

5. The blanking type blister tray punching die according to claim 4, characterized in that: A waste cavity (29) is provided in the lower die (2) on one side of the blanking hole (22), and a stopper (28) is provided on the side wall of the blanking hole (22). The stopper (28) is arranged on the side wall on the side opposite to the waste cavity (29).

6. The blanking type blister tray punching die according to claim 5, characterized in that: The polishing piece (51) is L-shaped.

7. The blanking type blister tray punching die according to claim 6, characterized in that: The telescopic assembly (52) further comprises a rotating sleeve (522) and a telescopic rod (523). The rotating sleeve (522) is sleeved on the rotating rod (233). The rotating sleeve (522) is arranged at one end close to the grinding piece (51). One end of the telescopic rod (523) is rotatably connected to the rotating sleeve (522), and the other end is rotatably connected to the grinding piece (51). A rotating motor (58) is provided in the cavity (25), and the rotating motor (58) is transmission-connected to the rotating sleeve (522).

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