A punching waste material guiding and separating structure of a cold heading die

Abstract

The utility model provides a kind of punching waste material guide separating structure of cold heading die belongs to cold heading processing technical field.The utility model includes for the punch of part punching processing and main mould, punch die is provided with the punch die insert of punch die in setting out, punch die insert left side is equipped with punch die pad in punch die, the downside of punch die is provided with discharge hole, the core of installing material is movably provided in main mould, punch bar is provided in main mould, the guide structure that can be separated to waste and finished product is provided in the below of main mould and punch die.The utility model can make waste and finished product respectively from punch die and main mould drop, then pass two independent passages and respectively fall into two different collection frame, avoid the trouble of artificial sorting, improve processing efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of cold heading technology and relates to a waste material guiding and separating structure for punching in cold heading molds. Background Technology

[0002] Cold heading, as a highly efficient and low-cost plastic forming process, boasts excellent dimensional accuracy and mechanical properties, and has become the mainstream manufacturing technology for fasteners and irregularly shaped parts. With continuous improvements in process technology, the structures of cold-headed parts are becoming increasingly complex, resulting in a significant increase in punching waste and trimming excess material generated during the process.

[0003] Existing cold heading machines have a separate receiving frame below the punching station. The die (punch bar) moves with the slide block, penetrating the blank to form a pre-punched hole. After the part is formed, the die retracts and pushes the scrap out of the workpiece through the ejection mechanism, which falls into the receiving frame below. Since both scrap and finished products fall between the die and the main die and eventually enter the receiving frame, it is necessary to sort the finished products and scrap in the collection frame, which increases the intensity of manual labor. Summary of the Invention

[0004] The purpose of this invention is to address the aforementioned problems in existing technologies by proposing a waste material guiding and separating structure for cold heading dies. This invention enables waste material and finished products to fall from the die and main die respectively, and then fall into two different collection boxes through two independent channels, eliminating the trouble of manual sorting and improving processing efficiency.

[0005] The objective of this utility model can be achieved through the following technical solutions: A punching waste material guiding and separating structure for a cold heading die includes a punching die and a main die for punching parts. After punching, the parts are decomposed into waste and finished products. A punching die core extending out of the punching die is provided inside the punching die. A punching die pad is provided inside the punching die on the left side of the punching die core. A through hole is opened on the lower side of the punching die pad. A discharge hole is opened on the lower side of the punching die, which is directly opposite the through hole. The main mold is movably provided with a mold core for accommodating parts, and the main mold is provided with a punch for punching holes in the parts; Below the main die and the punch die, there is a material guiding structure that can separate the punching waste.

[0006] Preferably, the material guiding structure includes a material guiding frame, with a waste material frame and a finished product frame respectively provided on both sides of the material guiding frame. A partition plate is vertically provided inside the material guiding frame, which divides the left and right sides of the material guiding frame into a waste material channel and a finished product channel, respectively receiving the waste material discharged from the discharge hole and the finished product pushed out by the main mold.

[0007] Preferably, the guide frame has a waste outlet on the side near the waste frame, and the waste channel is connected to the waste frame through the waste outlet. The guide frame has a finished product outlet on the side near the finished product frame, and the finished product channel is connected to the finished product frame through the finished product outlet. The height of the waste channel gradually decreases from near the finished product frame to the waste frame, and the height of the finished product channel gradually decreases from near the waste frame to the finished product frame.

[0008] Preferably, the bottom of the waste channel is provided with a first inclined plate and a second inclined plate connected from left to right, and the first inclined plate and the second inclined plate are inclined downward from left to right.

[0009] Preferably, the bottom of the finished product channel is provided with a third inclined plate and a fourth inclined plate connected from left to right, and the third inclined plate and the fourth inclined plate are inclined downward from right to left.

[0010] Preferably, the width of the second inclined plate gradually increases from near the finished product frame to the waste frame, and the width of the third inclined plate gradually increases from near the waste frame to the finished product frame.

[0011] Preferably, the main mold has a main mold pad, a protective sleeve is slidably disposed on the left end of the main mold, the mold core is disposed inside the protective sleeve, and a spring connects the protective sleeve and the main mold pad.

[0012] Preferably, a push tube is slidably disposed on the outer side of the punch, and an ejector pin is inserted into the main mold pad, with one end of the ejector pin passing through the main mold pad and connected to the push tube.

[0013] Compared with the prior art, the present invention has the following advantages: In this invention, after punching a part, the punching waste is ejected by the punch bar into the punching die core, and then returns to the punching die core along with the punching die core. The finished product remains in the core of the main die, thus separating the waste and the finished product. Then the waste falls through the discharge hole of the punching die, and the finished product is pushed out of the main die by the push tube, so that the waste and the finished product enter independent channels respectively, completing the separation. The structure is simple. A guide frame is installed below the final punching station, and a scrap frame is installed below the cold heading module to facilitate the collection of scrap from the previous station. A finished product frame is installed on the side of the guide frame away from the scrap frame, so that both sides of the guide frame are connected to the scrap frame and the finished product frame respectively. The fallen scrap slides into the scrap frame through the scrap channel, and the fallen finished product slides into the finished product frame through the finished product channel, realizing automatic separation. Only the existing receiving frame needs to be replaced, which can save the trouble of manual sorting and is simple to operate. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 yes Figure 1Sectional view at point AA; Figure 3 This is a connection diagram of the guide frame; Figure 4 This is a schematic diagram of the punching process for a part.

[0015] In the diagram: 1. Scrap box; 2. Finished product box; 3. Guide box; 31. Divider plate; 32. Scrap channel; 321. First inclined plate; 322. Second inclined plate; 323. Scrap outlet; 33. Finished product channel; 331. Third inclined plate; 332. Fourth inclined plate; 333. Finished product outlet; 4. Die; 41. Die pad; 42. Drilling core; 43. Discharge hole; 5. Main mold; 51. Main mold pad; 52. Ejector pin; 53. Sheath; 54. Die core; 55. Push tube; 56. Spring; 57. Punch bar. Detailed Implementation

[0016] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0017] like Figure 1-4 As shown, a waste material guiding and separating structure for a cold heading die is disclosed. The cold heading die is located at the last punching station of the cold heading machine. It includes a punch 4 and a main die 5 for punching parts. After impact, the parts are decomposed into waste and finished products. The punch 4 and the main die 5 are arranged on the left and right sides. A punching die core 42 protrudes from the punch 4 and is provided inside the punch 4. The punching die core 42 is provided with a through hole. A punching die pad 41 is provided inside the punch 4 on the left side of the punching die core 42. A through hole is opened on the lower side of the punching die pad 41. The through hole of the punching die core 42 is connected to the through hole. A discharge hole 43 is opened on the lower side of the punch 4, which is directly opposite to the through hole.

[0018] The right end of the main mold 5 is provided with a main mold pad 51, and the left end of the main mold 5 is slidably provided with a protective sleeve 53. The protective sleeve 53 is provided with a mold core 54 for accommodating parts, and a spring 56 is connected between the protective sleeve 53 and the main mold pad 51.

[0019] The main mold pad 51 is provided with a punch 57 for punching holes in the parts. One end of the punch 57 extends into the mold core 54. Under the compression and rebound action of the spring 56, the mold core 54 can slide back and forth on the outside of the punch 57. A push tube 55 is slidably provided on the outside of the punch 57. An ejector pin 52 is inserted into the main mold pad 51. One end of the ejector pin 52 passes through the main mold pad 51 and is connected to the push tube 55.

[0020] After punching the part, the punching waste is ejected by the punch 57 into the punching die core 42, and then returns to the die along with the punching die core 42. The waste is then discharged downward from the discharge hole 43 through the through hole of the die pad 41, and the finished product remains in the die core 54 of the main die 5. Then, the ejector pin 52 drives the push tube 55 to move to the left, pushing the finished product to the left and dropping it from the left end of the main die 5, thus separating the waste and the finished product. The dropped waste and the finished product enter independent channels respectively, resulting in a simple structure.

[0021] In this embodiment, a material guiding structure capable of separating punching waste is provided below the main mold 5 and the punching die 4. The material guiding structure includes a material guiding frame 3, and a waste frame 1 and a finished product frame 2 are respectively provided on both sides of the material guiding frame 3.

[0022] A partition plate 31 is vertically arranged inside the guide frame 3, which divides the left and right sides of the guide frame 3 into a waste channel 32 and a finished product channel 33. A waste outlet 323 is opened on the side of the guide frame 3 closest to the waste frame 1, and the waste channel 32 is connected to the waste frame 1 through the waste outlet 323. A finished product outlet 333 is opened on the side of the guide frame 3 closest to the finished product frame 2, and the finished product channel 33 is connected to the finished product frame 2 through the finished product outlet 333.

[0023] A guide frame 3 is set below the final punching station, and a scrap frame 1 is set below the cold heading module to facilitate the collection of scrap from the previous station. A finished product frame 2 is set on the side of the guide frame 3 away from the scrap frame 1, so that the two sides of the guide frame 3 are connected to the scrap frame 1 and the finished product frame 2 respectively. The fallen scrap slides into the scrap frame 1 through the scrap channel 32, and the fallen finished product slides into the finished product frame 2 through the finished product channel 33, realizing automatic separation. Only the receiving frame below the existing punching station needs to be replaced, which can save the trouble of manual sorting and is simple to operate.

[0024] In this embodiment, the height of the waste channel 32 gradually decreases from near the finished product frame 2 to the waste frame 1, and the height of the finished product channel 33 gradually decreases from near the waste frame 1 to the finished product frame 2. The inclined slope allows waste and finished products to quickly roll into the waste frame 1 and the finished product frame 2, preventing blockage of the waste channel 32 and the finished product channel 33.

[0025] Preferably, the bottom of the waste channel 32 is provided with a first inclined plate 321 and a second inclined plate 322 connected from left to right, and the first inclined plate 321 and the second inclined plate 322 are inclined downward from left to right. The bottom of the finished product channel 33 is provided with a third inclined plate 331 and a fourth inclined plate 332 connected from left to right, and the third inclined plate 331 and the fourth inclined plate 332 are inclined downward from right to left.

[0026] The slope of the waste channel 32 is tilted towards the waste outlet 323, and the slope of the finished product channel 33 is tilted towards the finished product outlet 333, thereby improving the discharge efficiency of waste and finished products.

[0027] Preferably, the width of the second inclined plate 322 gradually increases from near the finished product frame 2 to the waste frame 1, and the width of the third inclined plate 331 gradually increases from near the waste frame 1 to the finished product frame 2. Because the second inclined plate 322 is wider on the side near the waste frame 1, the width of the waste outlet 323 is increased, preventing blockage of the waste outlet 323. Similarly, the third inclined plate 331 is wider on the side near the finished product frame 2, increasing the width of the finished product outlet 333, preventing blockage of the finished product outlet 333, and thus ensuring smoother material discharge.

Claims

1. A waste material guiding and separating structure for punching in a cold heading die, comprising a punching die (4) and a main die (5) for punching parts, wherein the parts are decomposed into waste and finished products after punching, characterized in that, The die (4) is provided with a punching die core (42) and a die pad (41). The punching die core (42) extends out of the die (4). The die pad (41) has a through hole on its lower side. The die (4) has a discharge hole (43) that communicates with the through hole on its lower side. The main mold (5) is movably provided with a mold core (54) for accommodating parts and a punch (57) for punching parts. The main mold (5) and the punch (4) are provided with a material guiding structure that can separate waste and finished products.

2. The punching waste material guiding and separating structure for a cold heading die according to claim 1, characterized in that, The material guiding structure includes a material guiding frame (3), with a waste material frame (1) and a finished product frame (2) respectively on both sides of the material guiding frame (3). A partition plate (31) is vertically arranged inside the material guiding frame (3), which divides the left and right sides of the material guiding frame (3) into a waste material channel (32) and a finished product channel (33), respectively receiving the waste material discharged from the discharge hole (43) and the finished product pushed out by the main mold (5).

3. The punching waste material guiding and separating structure for a cold heading die according to claim 2, characterized in that, The guide frame (3) has a waste opening (323) on the side near the waste frame (1), and the waste channel (32) is connected to the waste frame (1) through the waste opening (323). The guide frame (3) has a finished product opening (333) on the side near the finished product frame (2), and the finished product channel (33) is connected to the finished product frame (2) through the finished product opening (333). The height of the waste channel (32) gradually decreases from near the finished product frame (2) to the waste frame (1), and the height of the finished product channel (33) gradually decreases from near the waste frame (1) to the finished product frame (2).

4. The punching waste material guiding and separating structure for a cold heading die according to claim 3, characterized in that, The bottom of the waste channel (32) is provided with a first inclined plate (321) and a second inclined plate (322) connected from left to right, and the first inclined plate (321) and the second inclined plate (322) are inclined downward from left to right.

5. The punching waste material guiding and separating structure for a cold heading die according to claim 4, characterized in that, The bottom of the finished product channel (33) is provided with a third inclined plate (331) and a fourth inclined plate (332) connected from left to right, and the third inclined plate (331) and the fourth inclined plate (332) are inclined downward from right to left.

6. The punching waste material guiding and separating structure for a cold heading die according to claim 5, characterized in that, The width of the second inclined plate (322) gradually increases from near the finished product frame (2) to the waste frame (1), and the width of the third inclined plate (331) gradually increases from near the waste frame (1) to the finished product frame (2).

7. The punching waste material guiding and separating structure for a cold heading die according to claim 1, characterized in that, The main mold (5) is provided with a main mold pad (51), and a protective sleeve (53) is slidably provided on the left end of the main mold (5). The mold core (54) is provided in the protective sleeve (53), and a spring (56) is connected between the protective sleeve (53) and the main mold pad (51).

8. The waste material guiding and separating structure for punching holes in a cold heading die according to claim 7, characterized in that, A push tube (55) is slidably arranged on the outside of the punch (57), and an ejector pin (52) is inserted into the main mold pad (51). One end of the ejector pin (52) passes through the main mold pad (51) and is connected to the push tube (55).

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