Material blocking mechanism for progressive die production

Abstract

The utility model discloses a stop mechanism for progressive die production, which belongs to the technical field of progressive die production and comprises a lower die, a plurality of die sets are arranged at the top end of the lower die, fixing blocks are fixedly mounted at two ends of one side of the top end of the lower die, and extension sleeves are fixedly arranged in the middles of the top ends of the fixing blocks. Guide grooves are formed in the two sides of the lower die. The sliding block drives the material blocking pins to slide along the rectangular strip under the supporting effect of the supporting spring and the downward pressing effect of the strip on the material blocking pins, the strip can be blocked, the sleeve plate, the end plate and the correction block are arranged on the outer sides of the two material blocking pins, the air pressure rod extends to enable the sliding base to be located at the tail end of the moving opening, and the material blocking pins can be conveniently moved. When a strip is conveyed along the top end of the stop pin, the two correction blocks correct the strip under the matching effect of the torsion spring and the air pressure rod, so that the strip is located in the middle of the top end of the lower die, the deviation probability of the strip is greatly reduced, and the qualified rate of continuous die production is improved.

Description

Technical Field

[0001] This utility model relates to the field of progressive die production technology, and in particular to a material blocking mechanism for progressive die production. Background Technology

[0002] A progressive die, also known as a step-by-step die, is a cold stamping die that uses strip-shaped raw material to complete multiple stamping operations simultaneously at several different stations on a single die during a single stamping stroke. Each time the die completes a stamping stroke, the strip moves a fixed distance until the product is finished. The blanked part is formed step-by-step in a progressive die. Continuous forming is a process method that concentrates multiple processes, allowing for the completion of trimming, notching, grooving, punching, plastic deformation, blanking, and other operations on a single die. Depending on the actual needs of the stamped part, multiple stamping operations (called stations in a progressive die) are arranged in a specific sequence for continuous stamping. A stop device is used to fix the position of the part to be stamped before stamping, preventing displacement or misalignment during stamping.

[0003] A search revealed a patent with publication number CN208583906U entitled "A Material Stopping Mechanism for Continuous Die Production." The technical problem it addresses is the lack of a material stopping device at the feed inlet. Typically, initial positions are marked by lines on the die. During material transport, vibrations from the press cause the strip to shift, resulting in deviations in the initial feed position and significant material waste. The solution involves a fixed connection between the upper module and adjusting bolts. The upper module is installed behind the press, and the height difference between the lower left and right ends of the lower module allows the lower end of the upper module to be precisely positioned at the press's feed inlet, facilitating material transport control. However, the following drawback remains: the strip may shift during transport and pressing. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a material blocking mechanism for continuous die production.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A material-stopping mechanism for continuous die production includes a lower die. Multiple modules are arranged at the top of the lower die. Fixed blocks are fixedly installed at both ends of one side of the lower die's top, and an extension sleeve is fixedly installed at the middle of the top of each fixed block. Guide grooves are opened on both sides of the lower die, and a material-stopping pin is slidably installed between the guide grooves and the extension sleeve. A slider is fixedly connected to the bottom of the material-stopping pin, and a support spring is fixedly connected between the bottom of the slider and the bottom of the guide groove. A sleeve plate is fixedly sleeved on the upper circumference of the material-stopping pin, and end plates are fixedly connected to opposite ends of the two sleeve plates. A movable opening is opened at the top of each sleeve plate, and a slide block is slidably installed inside each movable opening. A straightening block is rotatably installed at the top of the slide block via a torsion spring. An adapter ear is fixedly installed at the middle of the outer side of the straightening block and one side of the inner side of the end plate at each end, and a pneumatic rod is rotatably installed between the two adapter ears at each end.

[0007] Preferably, the inner wall of the guide groove is fixedly provided with three rectangular strips at equal angles.

[0008] Preferably, the slider has three rectangular openings at equal angles around its circumference, and each rectangular opening is slidably connected to the rectangular strip.

[0009] Preferably, the sleeve is located at the top of the extension sleeve.

[0010] Preferably, both sides of the opposite ends of the two correction blocks are rounded.

[0011] Preferably, the center of the extension sleeve and the center of the guide groove are located on the same vertical line.

[0012] The beneficial effects of this utility model are as follows:

[0013] 1. This utility model proposes a material blocking mechanism for continuous die production. A support spring is fixedly connected between the bottom end of the slider and the bottom end of the guide groove. The support of the spring and the downward pressure of the strip on the material blocking pin cause the slider to slide along the rectangular strip with the material blocking pin, thereby blocking the strip. A sleeve plate, an end plate, and a straightening block are provided on the outer side of the two material blocking pins. The extension of the pneumatic rod places the slide at the end of the movable opening, so that the two straightening blocks are inclined in a state that is wider on the outside and narrower on the inside. When the strip is conveyed along the top of the material blocking pin, the two straightening blocks, under the combined effect of the torsion spring and the pneumatic rod, straighten the strip and place it in the middle of the top of the lower die, which greatly reduces the probability of strip deviation and improves the pass rate of continuous die production. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the material blocking mechanism for continuous die production proposed in this utility model;

[0015] Figure 2 This is a bottom view of the material-stopping mechanism for continuous die production proposed in this utility model.

[0016] Figure 3 This is a schematic diagram of the material stop pin of the material stop mechanism for continuous die production proposed in this utility model;

[0017] Figure 4 This is a bottom view of the structure of a baffle plate for a continuous die production method proposed in this utility model.

[0018] In the diagram: 1. Lower mold, 2. Fixing block, 3. Extension sleeve, 4. Guide groove, 5. Rectangular strip, 6. Stop pin, 7. Slider, 8. Rectangular opening, 9. Support spring, 10. Sleeve plate, 11. Moving opening, 12. End plate, 13. Adapter ear, 14. Correcting block, 15. Slide seat, 16. Pneumatic rod. Detailed Implementation

[0019] Reference Figure 1-4 A material blocking mechanism for continuous die production includes a lower die 1. Multiple modules are provided at the top of the lower die 1. Fixed blocks 2 are fixedly installed at both ends of one side of the top of the lower die 1, and an extension sleeve 3 is fixedly installed at the middle of the top of the fixed blocks 2. Guide grooves 4 are provided on both sides of the lower die 1, and a material blocking pin 6 is slidably installed between the guide grooves 4 and the extension sleeve 3. A slider 7 is fixedly connected to the bottom of the material blocking pin 6, and a support spring 9 is fixedly connected between the bottom of the slider 7 and the bottom of the guide groove 4. A sleeve plate 10 is fixedly sleeved on the upper circumference of the material blocking pin 6, and end plates 12 are fixedly connected to opposite ends of the two sleeve plates 10. A movable opening 11 is provided at the top of each sleeve plate 10. A slide block 15 is slidably installed inside each movable opening 11, and a straightening block 14 is rotatably installed at the top of the slide block 15 via a torsion spring. An adapter ear 13 is fixedly installed on the middle of the outer side of the straightening block 14 at each end and on one side of the inner side of the end plate 12, and a pneumatic rod 16 is rotatably installed between the two adapter ears 13 at each end.

[0020] In this utility model, three rectangular strips 5 at equal angles are fixedly provided on the inner wall of the guide groove 4.

[0021] The slider 7 has three rectangular openings 8 at equal angles around its circumference, and each rectangular opening 8 is slidably connected to the rectangular strip 5.

[0022] Sleeve 10 is located at the top of extension sleeve 3;

[0023] Both ends of the two corrective blocks 14 are rounded.

[0024] The center of the extension sleeve 3 and the center of the guide groove 4 are located on the same vertical line.

[0025] Working principle: A support spring 9 is fixedly connected between the bottom end of the slider 7 and the bottom end of the guide groove 4. The support of the support spring 9 and the downward pressure of the strip on the stop pin 6 cause the slider 7 to slide along the rectangular strip 5 with the stop pin 6, which can stop the strip. The two stop pins 6 are provided with a sleeve plate 10, an end plate 12 and a straightening block 14 on the outside. The extension of the pneumatic rod 16 makes the slide 15 located at the end of the moving opening 11, so that the two straightening blocks 14 are in an inclined state with the outer width and the inner width. When the strip is conveyed along the top of the stop pin 6, the two straightening blocks 14 straighten the strip under the combined effect of the torsion spring and the pneumatic rod 16, so that it is located in the middle of the top of the lower die 1, which greatly reduces the probability of strip deviation and improves the pass rate of continuous die production.

[0026] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A material-stopping mechanism for continuous die production, comprising a lower die (1), wherein a plurality of modules are disposed at the top of the lower die (1), characterized in that, Fixed blocks (2) are fixedly installed at both ends of one side of the top of the lower mold (1), and an extension sleeve (3) is fixedly installed in the middle of the top of the fixed block (2). Guide grooves (4) are opened on both sides of the lower mold (1), and a stop pin (6) is slidably installed between the guide groove (4) and the extension sleeve (3). A slider (7) is fixedly connected to the bottom end of the stop pin (6), and a support spring (9) is fixedly connected between the bottom end of the slider (7) and the bottom end of the guide groove (4). A sleeve plate (1) is fixedly sleeved on the upper circumference of the stop pin (6). 0), and two sleeve plates (10) are fixedly connected to end plates (12) at opposite ends. Each sleeve plate (10) has a movable opening (11) at its top. A slide block (15) is slidably installed inside each movable opening (11). A correction block (14) is rotatably installed at the top of the slide block (15) via a torsion spring. An adapter ear (13) is fixedly installed on the middle of the outer side of the correction block (14) at each end and on one side of the inner side of the end plate (12). A pneumatic rod (16) is rotatably installed between the two adapter ears (13) at each end.

2. The material stop mechanism for progressive die production according to claim 1, characterized in that, The inner circumference of the guide groove (4) is fixedly provided with three rectangular strips (5) at equal angles.

3. The material stop mechanism for progressive die production according to claim 2, characterized in that, The slider (7) has three rectangular openings (8) at equal angles around its circumference, and each rectangular opening (8) is slidably connected to the rectangular strip (5).

4. The material stop mechanism for progressive die production according to claim 1, characterized in that, The sleeve (10) is located at the top of the extension sleeve (3).

5. A material stop mechanism for progressive die production according to claim 1, characterized in that, Both sides of the opposite ends of the two correction blocks (14) are rounded.

6. The material stop mechanism for progressive die production according to claim 1, characterized in that, The center of the extension sleeve (3) and the center of the guide groove (4) are located on the same vertical line.

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