Pressing die capable of rapidly replacing insert

Abstract

The utility model provides a pressing die capable of rapidly replacing inserts, and belongs to the technical field of die manufacturing. The pressing die comprises an upper mounting plate, an upper die body, a lower die body, a lower mounting plate, a top plate and vertical plates, the upper die body is fixed to the upper mounting plate, the lower die body is fixed to the lower mounting plate through the vertical plates on the two sides, the top plate is located between the two vertical plates, a die cavity is formed in the lower die body, an embedding groove is formed in the bottom in the die cavity, the insert is embedded in the embedding groove, and a first vertical through hole is formed in the die cavity. A vertical second through hole is formed in the caulking groove, a first ejector rod is arranged in the first through hole in a penetrating mode, the lower end of the first ejector rod is fixed to the ejector plate, a second ejector rod is arranged in the second through hole in a penetrating mode, the upper end of the second ejector rod is fixed to the insert, and the lower end of the second ejector rod is suspended. The insert replacement speed is high, after the insert is ejected out through the second ejector rod, the insert and the second ejector rod are directly pulled out of the mold cavity, the insert and the second ejector rod are separated, the second ejector rod is connected with the insert needing to be used, then the insert is inserted into the caulking groove to be pressed, and rapid replacement is completed.

Description

Technical Field

[0001] The utility model belongs to the technical field of mold manufacturing and relates to a pressing mold for quickly replacing inserts. Background Art

[0002] When plastic products are injected or pressed, some iconic graphics or words are often molded simultaneously. If these words or patterns are directly engraved on the upper mold or lower mold, when these different graphics or words need to be replaced, the entire lower mold or lower mold needs to be replaced, which is a waste of materials and is also troublesome to replace, requiring the mold to be disassembled and reassembled. Therefore, people engrave these frequently changed patterns or words on an insert. When the content needs to be changed, the insert can be directly replaced without changing the mold, saving replacement time. However, some inserts are tightly embedded in the lower mold or upper mold and are not easy to remove, which results in a slightly longer time for insert removal. Utility Model Content

[0003] The utility model aims at the above problems existing in the prior art, and proposes a die for quickly replacing inserts, which directly utilizes the top plate of the unloading material to eject the inserts, and the inserts can be taken out quickly without the need for an additional power source.

[0004] The purpose of the utility model can be achieved through the following technical solutions: a die for quickly replacing inserts, comprising an upper mounting plate, an upper die, a lower die, a lower mounting plate, a top plate, and a vertical plate, the upper die being fixed on the upper mounting plate, the lower die being fixed on the lower mounting plate through the vertical plates on both sides, the top plate being located between the two vertical plates, and characterized in that a mold cavity is opened on the lower die, an embedding groove is opened at the bottom of the mold cavity, an insert is embedded in the embedding groove, a vertical through hole 1 is opened in the mold cavity, a vertical through hole 2 is opened in the embedding groove, a push rod 1 is passed through the through hole 1, a lower end of the push rod is fixed to the top plate, a push rod 2 is passed through the through hole 2, an upper end of the push rod 2 is fixed to the insert, and a lower end of the push rod 2 is suspended.

[0005] Furthermore, the upper surface of the insert is engraved with concave text.

[0006] Furthermore, a raised pattern is engraved on the upper surface of the inlay.

[0007] Furthermore, the insert is rectangular, and the four corners are transitioned by arcs.

[0008] Furthermore, two threaded holes are formed on the lower surface of the insert, and two upper ends of the push rod are provided with threaded parts, and the push rod is fixed to the insert through threaded connection.

[0009] Furthermore, a guide column is fixed on the lower mounting plate, and a guide hole for the guide column to pass through is opened on the push rod.

[0010] Furthermore, the length of the first push rod is twice the length of the second push rod.

[0011] When the unloading cylinder lifts the top plate, the top plate drives the first push rod to rise, and the product in the mold cavity is ejected, which is convenient for material removal. The stroke of the top plate is controlled within a certain range so that the top plate does not contact the lower end of the second push rod. In this way, only the product will be ejected, and the insert will not be ejected. When the insert needs to be replaced, the top plate is continued to rise, so that the top plate is against the lower end of the second push rod, and the second push rod begins to push the insert to rise together. Finally, the top plate rises to the highest point, so that the top plate is against the lower mold, and the insert rises to the highest point and completely leaves the embedded groove. At this time, the insert can be taken out, the insert and the second push rod are separated, and then the second push rod is connected to the insert to be used, and then inserted into the embedded groove and pressed tightly to complete the quick replacement.

[0012] Compared with the prior art, the quick-change insert die has the following advantages:

[0013] 1. The ejector plate is used to eject products and inserts, making the parts multifunctional.

[0014] 2. The insert can be replaced quickly. After being ejected by the second ejector, the insert and the second ejector are directly pulled out from the mold cavity, the insert and the second ejector are separated, the second ejector is connected to the insert to be used, and then inserted into the embedding groove and pressed tightly to complete the quick replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a cross-sectional view of the die for the quick-change insert.

[0016] In the figure, 1, upper mounting plate; 2, upper mold; 3, lower mold; 4, lower mounting plate; 5, top plate; 6, vertical plate; 7, mold cavity; 8, embedded groove; 9, insert; 10, ejector pin 1; 11, ejector pin 2. DETAILED DESCRIPTION

[0017] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0018] The die for quickly replacing the insert 9 includes an upper mounting plate 1, an upper die 2, a lower die 3, a lower mounting plate 4, a top plate 5, and a vertical plate 6. The upper die 2 is fixed on the upper mounting plate 1, the lower die 3 is fixed on the lower mounting plate 4 through the vertical plates 6 on both sides, the top plate 5 is located between the two vertical plates 6, the lower die 3 is provided with a mold cavity 7, the bottom of the mold cavity 7 is provided with an embedding groove 8, and the insert 9 is embedded in the embedding groove 8.

[0019] A vertical through hole 1 is formed in the mold cavity 7, a vertical through hole 2 is formed in the embedded groove 8, a push rod 10 is passed through the through hole 1, the lower end of the push rod 10 is fixed on the top plate 5, a push rod 2 11 is passed through the through hole 2, the upper end of the push rod 2 11 is fixed on the insert 9, and the lower end of the push rod 2 11 is suspended. The length of the push rod 10 is twice the length of the push rod 2 11.

[0020] The insert 9 is rectangular, and the four corners are transitioned by arcs. The upper surface of the insert 9 is engraved with concave text, and the lower surface of the insert 9 is provided with two threaded holes. The upper end of the push rod 11 has a threaded portion, and the push rod is fixed to the insert 9 by threaded connection.

[0021] A guide post is also fixed on the lower mounting plate 4, and a guide hole for the guide post to pass through is opened on the top rod.

[0022] When the unloading cylinder lifts the top plate 5, the top plate 5 drives the top rod 10 to rise, and the product in the mold cavity 7 is ejected, which is convenient for taking out the material. The stroke of the top plate 5 is controlled within a certain range, so that the top plate 5 does not contact the lower end of the top rod 2 11, so that only the product will be ejected, and the insert 9 will not be ejected. When the insert 9 needs to be replaced, the top plate 5 continues to rise, so that the top plate 5 and the lower end of the top rod 2 11 are against each other, and the top rod 2 11 starts to push the insert 9 to rise together, and finally the top plate 5 rises to the highest point, so that the top plate 5 and the lower mold 3 are against each other, and the insert 9 rises to the highest point and completely detaches from the embedded groove 8. At this time, the insert 9 can be taken out, the insert 9 and the second push rod are separated, and then the second push rod is connected to the insert 9 to be used, and then inserted into the embedded groove 8 and pressed tightly to complete the quick replacement.

[0023] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A die for quickly replacing inserts, comprising an upper mounting plate (1), an upper die (2), a lower die (3), a lower mounting plate (4), a top plate (5), and a vertical plate (6), wherein the upper die (2) is fixed on the upper mounting plate (1), the lower die (3) is fixed on the lower mounting plate (4) through vertical plates (6) on both sides, and the top plate (5) is located between the two vertical plates (6), characterized in that: The lower mold (3) has a mold cavity (7), a groove (8) is formed at the bottom of the mold cavity (7), an insert (9) is inserted in the groove (8), a vertical through hole (1) is formed in the mold cavity (7), a vertical through hole (2) is formed in the groove (8), a push rod (10) is passed through the through hole (1), the lower end of the push rod (10) is fixed on the top plate (5), a push rod (11) is passed through the through hole (2), the upper end of the push rod (11) is fixed on the insert (9), and the lower end of the push rod (11) is suspended in the air.

2. A die for rapid replacement of inserts according to claim 1, characterized in that: The upper surface of the insert (9) is engraved with recessed text.

3. A die for rapid replacement of inserts according to claim 1, characterized in that: The upper surface of the insert (9) is engraved with a raised pattern.

4. A die for rapid replacement of inserts according to claim 1, characterized in that: The insert (9) is rectangular, and the four corners are transitioned by arcs.

5. A die for rapid replacement of inserts according to claim 1, characterized in that: The lower surface of the insert (9) is provided with two threaded holes, the upper end of the second push rod (11) is provided with a threaded portion, and the push rod and the insert (9) are fixedly connected by threads.

6. A die for rapid replacement of inserts according to claim 1, characterized in that: A guide column is also fixed on the lower mounting plate (4), and a guide hole for the guide column to pass through is opened on the top rod.

7. A die for rapid replacement of inserts according to claim 1, characterized in that: The length of top rod one (10) is twice the length of top rod two (11).

Images