Stamping die for plastic plate of environment-friendly science and technology equipment

Abstract

The utility model discloses a stamping die for a plastic plate of environmental protection science and technology equipment, which comprises a base, a top plate, a bottom grinding tool, a top grinding tool, a mounting plate, a buffer plate and a stamping hydraulic cylinder, the middle position of the upper surface of the base is provided with an embedded bottom grinding tool, the bottom grinding tool is provided with a bottom die groove, and the groove bottom of the bottom die groove is provided with an embedded ejection assembly. The four corners of the bottom grinding tool of the base are each provided with two buffering pieces, the four corners of the upper surface of the base are provided with a top plate through four supporting columns, the inner sides of the four supporting columns are each provided with a vertical limiting sliding rod, and the corresponding limiting sliding rods are movably sleeved with the four corners of a mounting plate. Two synchronous punching hydraulic cylinders are adopted to penetrate through the top plate, and the ends of telescopic shafts are fixed to the upper surface of the buffer plate. The buffering piece is used for buffering the lower impact force of the top grinding tool, the extrusion piece is used for buffering the instant extrusion force of the stamping hydraulic cylinder, it is guaranteed that the installation plate is not subjected to large stamping, stamping safety is guaranteed, and the buffering piece is also convenient to disassemble and maintain.

Description

Technical Field

[0001] This utility model relates to the field of stamping die technology, and in particular to a stamping die for plastic sheets in an environmentally friendly technology device. Background Technology

[0002] When processing plastic sheets, stamping dies are typically used to shape them into the desired form. However, with existing stamping dies, the formed plastic sheet can easily become stuck inside the die, making it difficult to remove and allowing for automatic detachment. Furthermore, the stamping process involves significant force from the upper die; without cushioning, this can quickly damage the lower die. While cushioning structures can be implemented, replacing springs after repeated damage is cumbersome and often requires complete disassembly and repair, resulting in high maintenance costs. Utility Model Content

[0003] This utility model aims to at least partially solve one of the technical problems in related technologies. Therefore, one objective of this utility model is to provide a stamping die for plastic sheets in an environmentally friendly technological device, solving problems such as easy damage to the bottom die during the stamping process, cumbersome maintenance and replacement of springs in stamping buffer components, and high maintenance costs.

[0004] According to the present invention, a stamping die for plastic sheet of an environmentally friendly technological equipment includes a base, a top plate, a bottom mold, a mounting plate, a buffer plate, and a stamping hydraulic cylinder. The base has an embedded bottom mold at the center of its upper surface, a bottom mold groove, and an embedded ejector assembly at the bottom of the groove. Two buffer components are provided at each of the four corners of the bottom mold, with the buffer components positioned on both sides of the corners. The top plate is mounted on the four corners of the base via four support columns, and a vertical limiting slide rod is provided inside each of the four support columns. The four corners of the mounting plate are movably fitted onto the corresponding limiting slide rods. A top mold facing the bottom mold groove is fixed to the lower surface of the mounting plate. Each of the four corners of the buffer plate is mounted on the mounting plate using an extrusion component. Two synchronous stamping hydraulic cylinders penetrate the top plate and fix the ends of the telescopic shafts to the upper surface of the buffer plate.

[0005] In some embodiments of this utility model, the buffer component includes a first buffer rod, a first buffer spring, and a docking rod. The base is provided with a dumbbell-shaped groove, the docking rod is located in the lower half of the dumbbell-shaped groove, the upper half of the dumbbell-shaped groove is filled with the first buffer spring, the bottom end of the first buffer rod is provided with a bolt rod, the first buffer rod is inserted from the first buffer spring and the bolt rod is screwed into the top end of the docking rod.

[0006] In some other embodiments of this utility model, the height of the cylindrical head at the top of the first buffer rod 8 is less than the height of the bottom mold protruding from the base 1.

[0007] In some other embodiments of the present invention, the ejection assembly includes a top block and an ejection hydraulic cylinder. The top block is fixed on the top end of the telescopic shaft of the ejection hydraulic cylinder. The ejection hydraulic cylinder is embedded in the bottom of the bottom mold groove, and the upper surface of the top block is flush with the bottom of the bottom mold groove.

[0008] In some other embodiments of this utility model, the extrusion member includes a second buffer rod and a second buffer spring. The second buffer rod extends through the corner of the buffer plate and is fixed at its bottom end to the mounting plate. The second buffer spring is sleeved on the second buffer rod between the mounting plate and the buffer.

[0009] In some other embodiments of this utility model, the inner sidewall of the top opening of the bottom membrane groove is an outwardly expanding arc-shaped sidewall.

[0010] In this invention, a buffer is provided to buffer the downward impact force of the top die. When the top die presses against the bottom die, the buffer no longer functions. Instead, the extrusion component is used to mitigate the instantaneous extrusion force of the stamping hydraulic cylinder, ensuring that the mounting plate is not subjected to excessive stamping and guaranteeing stamping safety. The buffer is also easy to disassemble and maintain. An embedded ejection component is provided on the bottom of the bottom die groove, which can smoothly eject the plastic stamped product after stamping. Attached Figure Description

[0011] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0012] Figure 1 This is a schematic diagram of the structure of a stamping die for a plastic sheet in an environmentally friendly technological device proposed in this utility model.

[0013] Figure 2 for Figure 1 Enlarged structural diagram at point A in the middle.

[0014] Figure 3 for Figure 1 Enlarged structural diagram at point B.

[0015] Figure 4 This is a cross-sectional structural diagram of the buffer component proposed in this utility model.

[0016] Figure 5 This is a schematic cross-sectional view of the ejector assembly proposed in this utility model.

[0017] In the diagram: 1. Base; 11. Limiting slide bar; 2. Bottom mold groove; 3. Mounting plate; 4. Mounting plate; 5. Buffer plate; 6. Stamping hydraulic cylinder; 7. Top plate; 8. Mounting plate; 80. Dumbbell-shaped groove; 81. First buffer spring; 82. Bolt rod; 83. Connecting bolt rod; 9. Second buffer bolt rod; 91. Second buffer spring; 10. Ejection hydraulic cylinder; 101. Top block. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0019] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0020] Reference Figure 1-5 A stamping die for plastic sheets in an environmentally friendly technology device includes a base 1, a top plate 7, a bottom mold, a top mold 3, a mounting plate 4, a buffer plate 5, and a stamping hydraulic cylinder 6. The base 1 has an embedded bottom mold at the center of its upper surface, and a bottom mold groove 2 on the bottom mold. An embedded ejector assembly is located at the bottom of the groove 2. Two buffer components are located at the four corners of the bottom mold on the base 1, with the buffer components positioned on both sides of the corners. The top plate 7 is mounted on the four corners of the upper surface of the base 1 via four support columns. A vertical limiting slide rod 11 is located inside each of the four support columns. The four corners of the mounting plate 4 are movably fitted onto the corresponding limiting slide rods 11. A top mold facing the bottom mold groove 2 is fixed to the lower surface of the mounting plate 4. Each corner of the buffer plate 5 is mounted on the mounting plate 4 using an extrusion component. Two synchronous stamping hydraulic cylinders 6 penetrate the top plate 7 and fix the ends of the telescopic shafts to the upper surface of the buffer plate 5.

[0021] Before stamping, the plastic raw material to be stamped is placed into the bottom die slot 2. The stamping hydraulic cylinder 6 presses down the buffer plate 5 and the mounting plate 4 simultaneously. When the four corners of the top die 3 touch the eight buffer components, they are appropriately blocked to reduce the impact force of the top die 3 moving downward. When the top die 3 touches the bottom die, the extruder acts to press the buffer plate 5 against the mounting plate 4 to buffer the stamping and improve the fit between the top die 3 and the bottom die. Then, the stamping process is carried out until the product is formed. Then, the top die 3 is slowly lifted, and after a period of cooling, the formed stamped plastic product is ejected using the ejector assembly.

[0022] The buffer component includes a first buffer rod 8, a first buffer spring 81, and a connecting rod 83. The base 1 is provided with a dumbbell-shaped groove 80. The connecting rod 83 is located in the lower half of the dumbbell-shaped groove 80. The first buffer spring 81 is inserted into the upper half of the dumbbell-shaped groove 80. A bolt rod 82 is provided at the bottom end of the first buffer rod 8. The first buffer rod 8 is inserted from the first buffer spring 81 and the bolt rod 82 is screwed into the top end of the connecting rod 83.

[0023] When the top abrasive 3 moves down and touches the first buffer rod 8, it compresses the first buffer spring 81, thereby providing a buffering effect. When the first buffer spring 81 is damaged and needs to be replaced, rotate the first buffer rod 8 to disconnect it from the docking rod 83 (the docking rod 83 cannot rotate in the groove; the lower half of the dumbbell-shaped groove 80 is a square groove). After replacing the first buffer spring 81, screw the first buffer rod 8 back onto the docking rod 83 (when screwing, press the first buffer rod 8 down to the lowest end).

[0024] The height of the cylindrical head at the top of the first buffer bolt 8 is less than the height of the bottom mold protruding from the base 1.

[0025] When the top mold 3 moves down to the bottom mold, the first buffer rod 8 does not affect the closing of the cover.

[0026] The ejection assembly includes an ejector block 101 and an ejection hydraulic cylinder 10. The ejector block 101 is fixed on the top end of the telescopic shaft of the ejection hydraulic cylinder 10. The ejection hydraulic cylinder 10 is embedded in the bottom of the bottom mold groove 2 and the upper surface of the ejector block 101 is flush with the bottom of the bottom mold groove 2.

[0027] Two ejector hydraulic cylinders 10 simultaneously eject two ejector blocks 101 to eject and mold plastic products.

[0028] The extrusion component includes a second buffer rod 9 and a second buffer spring 91. The second buffer rod 9 extends through the corner of the buffer plate 5 and is fixed at its bottom end to the mounting plate 4. The second buffer spring 91 is sleeved on the second buffer rod 9 between the mounting plate 4 and the buffer plate 5.

[0029] When the top mold 3 comes into contact with the bottom mold, the mounting plate cannot move, but the buffer plate can continue to move a certain distance to increase the degree of coverage of the top mold 3 and also play a buffering role.

[0030] The inner wall of the top opening of the bottom membrane groove 2 is an outwardly expanding arc-shaped sidewall. This facilitates docking, and in the event of minor errors, the membrane can be slid down for docking.

[0031] 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 stamping die for plastic plates of an environmentally friendly technology device, characterized by: The utility model provides a bottom film die groove (2) is provided with the ejection assembly embedded in the groove bottom, the bottom seat (1) is equipped with two buffer pieces respectively in four corners of bottom film die, and the buffer piece is arranged on both sides of the corner, the top plate (7) is installed on the four corner positions of the upper surface of the bottom seat (1) through four support columns, a vertical limiting slide rod (11) is arranged in the inside of four support columns, the four corner positions of the mounting plate (4) are movably sleeved on the corresponding limiting slide rod (11), the top film die of the lower surface of the mounting plate (4) is fixed to the bottom film die groove (2) opposite, the buffer plate (5) is installed on the mounting plate (4) with one extrusion piece in four corners respectively, and two synchronous punch hydraulic cylinders (6) are used to penetrate the top plate (7) and fix the telescopic shaft end on the upper surface of the buffer plate (5).

2. The punching die for plastic plates of an environmentally friendly technological device according to claim 1, characterized in that: The buffer piece includes a first buffer bolt rod (8), a first buffer spring (81) and a butt bolt rod (83), the bottom seat (1) is provided with a dumbbell-shaped groove (80), the butt bolt rod (83) is in the lower half of the dumbbell-shaped groove (80), the first buffer spring (81) is inserted into the upper half of the groove body of the dumbbell-shaped groove (80), the bottom end of the first buffer bolt rod (8) is provided with a bolt rod (82), the first buffer bolt rod (8) is inserted into the first buffer spring (81) and the bolt rod (82) is screwed into the top end of the butt bolt rod (83).

3. The punching die for plastic plates of an environmentally friendly technological device according to claim 2, characterized in that: The height of the cylindrical head of the top of the first buffer bolt rod (8) is less than the height of the bottom film die leaking out of the bottom seat (1).

4. The punching die for plastic plates of an environmentally friendly technological device according to claim 1, characterized in that: The ejection assembly includes a top block (101) and an ejection hydraulic cylinder (10), the top block (101) is fixed on the top end of the telescopic shaft of the ejection hydraulic cylinder (10), the ejection hydraulic cylinder (10) is embedded in the groove bottom of the bottom film die groove (2), and the upper surface of the top block (101) is flush with the groove bottom of the bottom film die groove (2).

5. The punching die for plastic plates of an environmentally friendly technological device according to claim 1, characterized in that: The extrusion piece includes a second buffer bolt rod (9) and a second buffer spring (91), the second buffer bolt rod (9) is movably penetrated from the corner position of the buffer plate (5), the bottom end of the second buffer bolt rod (9) is fixed on the mounting plate (4), and the second buffer spring (91) is sleeved on the second buffer bolt rod (9) between the mounting plate (4) and the buffer plate (5).

6. The punching die for plastic plates of an environmentally friendly technological device according to claim 1, characterized in that: The inner side wall of the opening position of the top of the bottom film die groove (2) is an outwardly expanding arc-shaped side wall.

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