Rotary press with defective product sorting mechanism

Abstract

The utility model discloses a rotary press with a defective product sorting mechanism, which comprises a press body, the press body comprises a main shaft, an upper die assembly, a middle die turntable and a lower die assembly, the rotary press further comprises a defective product sorting material blocking part and a material distributing groove, one end of the defective product sorting material blocking part is fixedly arranged on the edge of the middle die turntable and is obliquely arranged on the middle die turntable, and the other end of the defective product sorting material blocking part is arranged on the lower die assembly. The inner side face of the other end of the defective product sorting and blocking part is provided with an arc-shaped concave face used for guiding and discharging of formed products, the material distributing groove is downwards formed in the edge of the middle mold rotating disc, the feeding end of the material distributing groove is in butt joint with the arc-shaped concave face, and an air blowing hole is formed in the end, located on one side of the arc-shaped concave face, of the defective product sorting and blocking part. The defective product sorting and blocking part is connected with an external air supply device through the air pipe connector, so that compressed air can be blown out from the air blowing holes, defective products passing through the air blowing holes can be blown into the material separating groove to be separated and discharged, and rapid defective product sorting operation is achieved.

Description

Technical Field

[0001] This utility model relates to the field of rotary press technology, and more specifically, to a rotary press with a defective product sorting mechanism. Background Technology

[0002] A powder forming press is a device that presses metal powder or ceramic powder into a product of a fixed shape (such as a block). Existing powder forming presses can be divided into top-and-bottom pressing powder forming presses and rotary powder forming presses. For example, the applicant's earlier patent application, patent number CN202111087164.9, describes an improved rotary powder forming press, which includes a machine base, main shaft, upper turntable, middle turntable, lower turntable, upper pressure bar, lower pressure bar, forming master die, turntable rotation drive device, upper cam pressure bar device, lower cam pressure bar device, powder feeding hopper, powder filler, powder scraper, etc. It can realize a series of operations such as automatic powder filling, automatic powder scraping, powder filling amount adjustment, powder forming and pressing, and automatic discharge. However, this rotary powder forming press still has the following shortcomings: because the press itself lacks an automatic defective product sorting mechanism, defective products cannot be identified and removed in time, easily mixed into subsequent processes, and increase the cost of subsequent defective product judgment and rework, which greatly reduces production efficiency. Utility Model Content

[0003] The purpose of this invention is to overcome the above-mentioned defects in the prior art and provide a rotary press with a defective product sorting mechanism that enables rapid defective product sorting and improves the consistency and quality of finished products.

[0004] To achieve the above objectives, this utility model provides a rotary press with a defective product sorting mechanism, comprising a press body, which includes a main shaft, an upper die assembly, a middle die turntable, and a lower die assembly. The upper die assembly, middle die turntable, and lower die assembly are sequentially connected from top to bottom and rotatably connected to the longitudinally arranged main shaft. The upper die assembly, middle die turntable, and lower die assembly can rotate together relative to the main shaft under the drive of a rotary drive device. Each upper punch of the upper die assembly and each lower punch of the lower die assembly can be inserted into the middle die assembly under the drive of their respective upper punch lifting drive device and lower punch lifting drive device. The powder forming and pressing is realized in the master mold surrounding the mold turntable. It also includes a defective product sorting baffle and a material distribution groove. One end of the defective product sorting baffle is fixedly installed on the edge of the intermediate mold turntable and placed at an angle on the intermediate mold turntable. The inner side of the other end of the defective product sorting baffle is provided with an arc-shaped concave surface for guiding the molded product to feed. The material distribution groove is set downward on the edge of the intermediate mold turntable and its feeding end is in contact with the arc-shaped concave surface. An air blowing hole is opened at the end of the defective product sorting baffle located on one side of the arc-shaped concave surface. An air pipe interface connecting the air blowing hole from the inside is opened on the outer wall of the defective product sorting baffle.

[0005] Preferably, the sorting trough includes a good product chute and a defective product chute arranged side by side, and the air blowing part of the air blowing hole of the defective product sorting baffle is directly opposite the inlet end of the defective product chute.

[0006] Preferably, the upper die assembly further includes an upper die turntable and an upper punch guide rail. Each upper punch is movably inserted into the bushing of the upper die turntable and arranged in a ring. The upper punch guide rail is fixedly sleeved on the main shaft and installed in the central slot of the upper die turntable. The rolling element on each upper punch can rotate in a circular motion around the main shaft on the track of the upper punch guide rail and guide the upper punch to move up and down.

[0007] Preferably, the lower die assembly further includes a lower die turntable and a lower punch guide rail. Each lower punch is movably inserted into the bushing of the lower die turntable and arranged in a ring. The upper punch guide rail is fixedly sleeved on the main shaft and located below the lower punch guide rail. The bottom of each lower punch can move around the main shaft on the track of the lower punch guide rail and guide the upper punch to move up and down.

[0008] Preferably, the upward lifting drive device is fixedly installed downward on the press body and located above the upward punch rod, and the output part of the upward lifting drive device can abut against the upward punch rod that has rotated downward.

[0009] Preferably, the press body further includes a pressure sensing device, and the lower punch lifting drive device is fixedly mounted on the worktable of the press body with the pressure sensing device facing upward. The output part of the lower punch lifting drive device can abut against the upper punch rod that has been rotated to its lower position.

[0010] Preferably, the pressure sensing device includes a load cell and a load cell adapter. The load cell is fixed on the recess of the press body's worktable, and the top of the load cell contacts the bottom of the output of the downward lifting drive device through the load cell adapter.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] This utility model has a simple structure and reasonable design. The defective product sorting baffle is connected to an external air supply device through an air pipe interface, so that compressed air can be blown out from the air blowing hole. This blows the defective products passing through the air blowing hole into the sorting trough for sorting and discharge, realizing a rapid defective product sorting operation, avoiding confusion between good and defective products during discharge, and further ensuring the consistency and quality of the finished product. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the structure of the rotary press provided in this embodiment of the utility model;

[0015] Figure 2 This is an enlarged schematic diagram of the rotary press provided in this embodiment of the utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the defective product sorting baffle provided in this embodiment of the utility model;

[0017] Figure 4 This is a side view of the defective product sorting baffle provided in an embodiment of the present utility model;

[0018] Figure 5 This is a cross-sectional view of the defective product sorting baffle provided in this embodiment of the utility model, taken along the AA direction.

[0019] Figure 6 This is a schematic diagram of the structure of the upper punch guide rail provided in this embodiment of the utility model;

[0020] Figure 7 This is a schematic diagram of the upper punch provided in an embodiment of the present invention;

[0021] Figure 8 This is a schematic diagram of the structure of the lower punch provided in this embodiment of the utility model;

[0022] Figure 9 This is a schematic diagram of the lower part of the rotary press provided in this embodiment of the utility model;

[0023] Figure 10 This is a structural schematic diagram of the pressure sensing device provided in an embodiment of the present invention. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0025] Please refer to Figure 1 The present invention provides a rotary press with a defective product sorting mechanism, including a press body 1. The press body 1 includes a main shaft 11, an upper mold assembly 2, a middle mold turntable 3 and a lower mold assembly 4, and also includes a defective product sorting baffle 5 and a material distribution groove 6. The components of this embodiment will be described in detail below with reference to the accompanying drawings.

[0026] like Figure 1 As shown, the upper mold assembly 2, the middle mold turntable 3, and the lower mold assembly 4 can be connected sequentially from top to bottom and rotatedly connected to the longitudinally arranged main shaft 11. The upper mold assembly 2, the middle mold turntable 3, and the lower mold assembly 4 can rotate together relative to the main shaft 11 under the drive of the rotary drive device 10. Each upper punch 21 of the upper mold assembly 2 and each lower punch 41 of the lower mold assembly 4 can be inserted into the female mold 31 arranged around the middle mold turntable 3 under the drive of their respective upper punch lifting drive device 7 and lower punch lifting drive device 8 to achieve powder molding and pressing.

[0027] The female molds 31 are installed in the holes of the middle mold turntable 3 corresponding to the insertion positions of the upper punch 21 and the lower punch 41 and are arranged in a ring. The middle part of each female mold 31 is provided with a forming cavity for the upper punch 21 and the lower punch 41 to be inserted. The ring arrangement design realizes multi-station continuous stamping and improves production efficiency.

[0028] like Figure 2 As shown, one end of the defective product sorting baffle 5 can be fixedly installed on the edge of the intermediate mold turntable 3 and placed at an angle on the intermediate mold turntable 3. The inner side of the other end of the defective product sorting baffle 5 is provided with an arc-shaped concave surface 51 for guiding the molded product to feed. The material distribution groove 6 is set downward on the edge of the intermediate mold turntable 3 and its feeding end is connected to the arc-shaped concave surface 51. An air blowing hole 52 is opened at the end of the defective product sorting baffle 5 located on one side of the arc-shaped concave surface 51. An air pipe interface 53 that connects to the air blowing hole 52 from the inside is opened on the outer wall of the defective product sorting baffle 5.

[0029] Specifically, the sorting trough 6 may include a good product chute 61 and a defective product chute 62 arranged side by side, and the air blowing part of the air blowing hole 52 of the defective product sorting baffle 5 is directly opposite the feed end of the defective product chute 62.

[0030] like Figure 6 and Figure 7As shown, the upper die assembly 2 may also include an upper die turntable 22 and an upper punch guide rail 23. Each upper punch 21 is movably inserted into the bushing of the upper die turntable 22 and arranged in a ring. The upper punch guide rail 23 is fixedly sleeved on the main shaft 11 and installed in the middle slot of the upper die turntable 22. The rolling element 211 on each upper punch 21 can rotate in a circular motion around the main shaft 11 on the track of the upper punch guide rail 23 and guide the upper punch 21 to move up and down.

[0031] In a preferred embodiment, the upper guide rail 23 may include a guide rail body 231, and the outer periphery of the upper guide rail body 231 is provided with an upward track section 232, an upper horizontal track section 233, a downward track section 234 and a lower horizontal track section 235 arranged in sequence.

[0032] Preferably, the upward lifting drive device 7 is fixedly installed downward on the press body 1 and located above the upward punch rod 21, and the output part of the upward lifting drive device 7 can abut against the upward punch rod 21 that has rotated to its lower position.

[0033] like Figure 8 and Figure 9 As shown, the lower die assembly 4 may also include a lower die turntable 42 and a lower punch guide rail 43. Each lower punch 41 is movably inserted into the bushing of the lower die turntable 42 and arranged in a ring. The upper punch guide rail 23 is fixedly sleeved on the main shaft 11 and located below the lower punch guide rail 43. The bottom of each lower punch 41 can move around the main shaft 11 on the track of the lower punch guide rail 43 and guide the upper punch 21 to move up and down.

[0034] Preferably, the lower punch guide rail 43 may include an ejection slide rail 431, a guide slide rail 432, a material feeding / reducing slide rail 433, and a bridge slide rail 434. One end of the ejection slide rail 431 is connected to one end of the guide slide rail 432. The lower punch guide rail 43 can guide the up and down movement trajectory of the lower punch 41 to complete the feeding, pressing and forming and ejection actions in the pressing process. In this embodiment, the structure of the upper punch guide rail 23 and the lower punch guide rail 43 is not limited.

[0035] Preferably, the rotary drive device 10 can be configured as a rotatable transmission worm gear 101 mounted on the press body 1 that meshes with a transmission worm wheel 102 inside the lower die turntable 42. The transmission worm gear 101 drives the transmission worm wheel 102 to rotate through a rotary drive motor and transmission components (synchronous pulley + synchronous belt), thereby driving the lower die turntable 42 to rotate (counterclockwise), and in turn driving the upper die turntable 22 and the middle die turntable 3 to rotate relative to the main shaft 13 along with the lower die turntable 42. Other press rotary drive devices can also be used in this embodiment, and are not limited to this embodiment.

[0036] In this embodiment, the press body 1 may also include a pressure sensing device 9. The lower punch lifting drive device is fixedly installed on the worktable of the press body 1 with the pressure sensing device 9 facing upward. The output part of the lower punch lifting drive device 8 can abut against the upper punch rod 21 that has been rotated to its lower position.

[0037] Furthermore, in this embodiment, the upper punch lifting drive device 7 and the lower punch lifting drive device 8 can be configured to be driven by a worm gear lifting device to apply pressure to the upper punch rod 21 and the lower punch rod 41 by corresponding upper and lower cams. This embodiment does not involve any structural improvements and will not be described in detail here. Of course, in other embodiments, other lifting drive devices can also be used and there are no restrictions on them.

[0038] like Figure 10 As shown, the pressure sensing device 9 may include a load cell 91 and a load cell adapter 92. The load cell 91 is fixed on the worktable recess of the press body 1, and the top of the load cell 91 contacts the bottom of the output of the lower punch lifting drive device 8 through the load cell adapter 92.

[0039] The working principle of this embodiment is as follows:

[0040] The load cell 91 can detect the mold closing pressure of the upper punch 21 and the lower punch 41 in real time. If the detected pressure value exceeds or falls below the preset range, the pressing quality of the molded product is substandard and is judged as a defective product. The external air supply device is activated, and the air pipe interface 53 of the defective product sorting baffle 5 is connected to the air supply device through the air pipe, so that compressed air enters from the air pipe interface 53, passes through the internal channel of the defective product sorting baffle 5, reaches the blowing hole 52, and blows the defective products passing through here into the defective product chute 62 for unloading and collection, thereby automatically completing the sorting of defective products.

[0041] In summary, the defective product sorting baffle of this utility model is connected to an external air supply device through an air pipe interface, so that compressed air can be blown out from the air blowing hole, which can blow defective products passing through the air blowing hole into the sorting trough for sorting and discharge, realizing rapid defective product sorting operation and further ensuring the consistency and quality of finished products.

[0042] The above embodiments are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited to the above embodiments. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present utility model shall be considered equivalent substitutions and shall be included within the protection scope of the present utility model.

Claims

1. A rotary press with a defective product sorting mechanism, comprising a press body, the press body including a main shaft, an upper die assembly, a middle die turntable, and a lower die assembly, the upper die assembly, the middle die turntable, and the lower die assembly being sequentially connected from top to bottom and rotatably connected to the longitudinally arranged main shaft, the upper die assembly, the middle die turntable, and the lower die assembly being able to rotate together relative to the main shaft under the drive of a rotary drive device, each upper punch of the upper die assembly and each lower punch of the lower die assembly being able to be inserted into a female die arranged around the middle die turntable under the drive of their respective corresponding upper punch lifting drive device and lower punch lifting drive device to achieve powder forming and pressing, characterized in that: It also includes a defective product sorting baffle and a material distribution groove. One end of the defective product sorting baffle is fixedly installed on the edge of the intermediate mold turntable and placed at an angle on the intermediate mold turntable. The inner side of the other end of the defective product sorting baffle is provided with an arc-shaped concave surface for guiding the molded products to be fed out. The material distribution groove is set downward on the edge of the intermediate mold turntable and its feeding end is in contact with the arc-shaped concave surface. An air blowing hole is opened at the end of the defective product sorting baffle located on one side of the arc-shaped concave surface. An air pipe interface connecting the air blowing hole from the inside is opened on the outer wall of the defective product sorting baffle.

2. A rotary press with a defective product sorting mechanism according to claim 1, characterized in that: The material sorting trough includes a good product chute and a defective product chute arranged side by side, and the air blowing part of the air blowing hole of the defective product sorting baffle is directly opposite the inlet end of the defective product chute.

3. A rotary press with a defective product sorting mechanism according to claim 1, characterized in that: The upper die assembly also includes an upper die turntable and an upper punch guide rail. Each upper punch is movably inserted into the bushing of the upper die turntable and arranged in a ring. The upper punch guide rail is fixedly sleeved on the main shaft and installed in the central slot of the upper die turntable. The rolling element on each upper punch can rotate in a circular motion around the main shaft on the track of the upper punch guide rail and guide the upper punch to move up and down.

4. A rotary press with a defective product sorting mechanism according to claim 1, characterized in that: The lower die assembly also includes a lower die turntable and a lower punch guide rail. Each lower punch is movably inserted into the bushing of the lower die turntable and arranged in a ring. The upper punch guide rail is fixedly sleeved on the main shaft and located below the lower punch guide rail. The bottom of each lower punch can move around the main shaft on the track of the lower punch guide rail and guide the upper punch to move up and down.

5. A rotary press with a defective product sorting mechanism according to claim 1, characterized in that: The upward lifting drive device is fixedly installed downward on the press body and located above the upward punch rod. The output part of the upward lifting drive device can abut against the upward punch rod that has rotated to its lower position.

6. A rotary press with a defective product sorting mechanism according to claim 1, characterized in that: The press body also includes a pressure sensing device. The lower punch lifting drive device is fixedly mounted on the worktable of the press body with the pressure sensing device facing upward. The output part of the lower punch lifting drive device can abut against the upper punch rod that has rotated to its lower position.

7. A rotary press with a defective product sorting mechanism according to claim 6, characterized in that: The pressure sensing device includes a load cell and a load cell adapter. The load cell is fixed on the recess of the press body's worktable, and the top of the load cell contacts the bottom of the output of the lower punch lifting drive device through the load cell adapter.

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