A thermoforming mold locking mechanism

Abstract

This utility model discloses a locking mechanism for a thermoforming mold, relating to the field of thermoforming mold technology. It includes an upper mounting base and a lower mounting base. The upper mounting base has a locking seat inside, and sliding grooves on both sides of its interior. The locking seat is slidably connected to the sliding grooves. An adjusting bolt is threaded to the middle of the upper end of the upper mounting base, and the lower end of the adjusting bolt is rotatably connected to the locking seat. A locking groove is formed on the front surface of the locking seat. A locking rod is rotatably connected to the interior of the lower mounting base via a rotating shaft. A locking wedge is provided on the inner side of the upper end of the locking rod, and the locking wedge is interlocked with the locking groove. A return spring is provided between the rear side of the locking rod and the lower end of the lower mounting base. Fixed edges are provided on both the left and right sides of the upper and lower mounting bases to reduce the gap between the upper and lower molds after locking, thus reducing the occurrence of burrs on the metal blank during hot pressing operations of the thermoforming mold.

Description

Technical Field

[0001] This utility model relates to the field of thermoforming mold technology, and specifically to a thermoforming mold locking mechanism. Background Technology

[0002] Hot forming dies are precision tools specifically designed for plastically deforming titanium alloy materials in high-temperature environments. They are typically made of heat-resistant alloy steel with high temperature and strength. Their core function is to bend or shape metal billets under high temperature and pressure by applying pressure and heating. These dies must possess excellent resistance to thermal fatigue, wear resistance, and thermal conductivity. When applying pressure to the metal billet through the die, a die locking device is required for locking. Traditional locking mechanisms lock the die through the cooperation between two locking parts, which are locked by gravity or spring force. This results in a gap between the upper and lower dies after locking, causing burrs to appear at the die gap after the metal billet is hot-pressed. Utility Model Content

[0003] The purpose of this utility model is to provide a thermoforming mold locking mechanism to solve the problem of the traditional locking mechanism mentioned in the background art locking the mold by the cooperation between the upper and lower locking parts, and the upper and lower locking parts locking by gravity or spring force. This results in a gap between the upper and lower molds after locking, causing burrs to appear at the gap position of the mold after the metal billet is hot-pressed.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a thermoforming mold locking mechanism, comprising an upper mounting base and a lower mounting base. The upper mounting base has a locking seat inside, and sliding grooves are provided on both sides of the interior of the upper mounting base. The locking seat is slidably connected to the sliding grooves. An adjusting bolt is threadedly connected to the middle position of the upper end of the upper mounting base. The lower end of the adjusting bolt is rotatably connected to the locking seat. A locking groove is formed on the front surface of the locking seat. A locking rod is rotatably connected to the interior of the lower mounting base via a rotating shaft. A locking wedge is provided on the inner side of the upper end of the locking rod. The locking wedge is interlocked with the locking groove. A return spring is provided between the rear side of the locking rod and the lower end of the lower mounting base. Fixed edges are provided on both the left and right sides of the upper and lower mounting bases.

[0005] Preferably, the upper end of the lower mounting base is provided with a limiting upper wall, the inner side of the locking rod abuts against the limiting upper wall, so that the outer surface of the locking rod is consistent with the front outer surface of the lower mounting base, the lower end of the locking rod and the outside of the lower mounting base are provided with a pressing plate, and the lower end of the locking base, both ends of the fixed groove and both ends of the locking wedge are provided with guide wedges.

[0006] Preferably, the lower end of the adjusting bolt is provided with a limiting groove inside the locking seat, and the front side of the locking seat is connected to a limiting screw by a thread, the inner end of the limiting screw engaging with the limiting groove.

[0007] Preferably, the front outer surface of the lower mounting base and the rear outer surface of the locking rod are both provided with limiting protrusions, and the return spring is spliced ​​with the limiting protrusions.

[0008] Preferably, fixing bolt holes are provided at both the top and bottom of the fixing edge.

[0009] Compared with the prior art, the beneficial effects of this utility model are: on the basis of retaining the traditional locking mechanism that locks the mold by the cooperation between the upper and lower locking parts, a locking seat is slidably set inside the upper mounting seat by adjusting bolts, so that the position of the locking seat inside the upper mounting seat can be adjusted. By adjusting the position of the locking seat, the gap between the upper and lower molds after locking is reduced, and the occurrence of burrs on the metal blank during the hot pressing operation of the thermoforming mold is reduced. Attached Figure Description

[0010] Figure 1 This is an isometric view of the main structure of this utility model;

[0011] Figure 2 This is an isometric sectional view of the main structure of this utility model;

[0012] Figure 3 This is a front view schematic diagram of the main structure of this utility model;

[0013] Figure 4 This is a left sectional view of the main structure of this utility model;

[0014] Figure 5 This is a left-side view of the main structure of this utility model.

[0015] In the diagram: 1-Upper mounting base, 2-Lower mounting base, 3-Locking base, 4-Slide groove, 5-Adjusting bolt, 6-Locking groove, 7-Locking rod, 8-Locking wedge, 9-Reset spring, 10-Fixing edge, 11-Limiting upper wall, 12-Pressing plate, 13-Limiting groove, 14-Limiting screw, 15-Limiting protrusion, 16-Fixing bolt hole, 17-Guide wedge. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figure 1-5 This utility model provides a locking mechanism for a thermoforming mold, including an upper mounting base 1 and a lower mounting base 2. The upper mounting base 1 has a locking seat 3 inside, and sliding grooves 4 are provided on both sides of the interior of the upper mounting base 1. The locking seat 3 is slidably connected to the sliding grooves 4. An adjusting bolt 5 is threadedly connected to the middle position of the upper end of the upper mounting base 1. The lower end of the adjusting bolt 5 is rotatably connected to the locking seat 3. A locking groove 6 is provided on the front surface of the locking seat 3. A locking rod 7 is rotatably connected to the interior of the lower mounting base 2 through a rotating shaft. A locking wedge 8 is provided on the inner side of the upper end of the locking rod 7. The locking wedge 8 is inserted into the locking groove 6. A return spring 9 is provided between the rear side of the locking rod 7 and the lower end of the lower mounting base 2. Fixed edges 10 are provided on both the left and right sides of the upper mounting base 1 and the lower mounting base 2.

[0018] In use, the upper mounting base 1 is fixed to the outer edge of the upper mold by bolts passing through the fixing edge 10, and the lower mounting base 2 is fixed to the outer edge of the lower mold by bolts passing through the fixing edge 10, ensuring that the upper mounting base 1 and the lower mounting base 2 are correspondingly positioned. A locking seat 3 is slidably positioned inside the upper mounting base 1 via a sliding groove 4. The locking seat 3 is fixedly connected to the upper mounting base 1 by adjusting bolts 5, and its position inside the upper mounting base 1 can be adjusted by rotating the adjusting bolts 5. A locking rod 7 is rotatably connected inside the lower mounting base 2 via a rotating shaft. A locking groove 6 is provided on the locking seat 3, and a locking wedge 8 is provided on the locking rod 7. Through the interlocking connection of locking wedge 8 and locking groove 6, a return spring 9 is set between locking rod 7 and lower mounting seat 2 to keep locking rod 7 against locking seat 3, thus fixing upper mounting seat 1 and lower mounting seat 2 together. When there is a gap between the upper and lower molds, the locking seat 3 can be moved upward by rotating adjusting bolt 5. Through the interlocking connection of locking wedge 8 and locking groove 6, lower mounting seat 2 is pulled closer to upper mounting seat 1 to reduce the gap between the upper and lower molds. When it is necessary for the upper and lower molds to separate, pressing locking rod 7 overcomes the elastic force of return spring 9, thus separating locking wedge 8 from locking groove 6, so that upper mounting seat 1 and lower mounting seat 2 can separate.

[0019] The upper end of the lower mounting base 2 is provided with a limiting upper wall 11. The inner side of the locking rod 7 abuts against the limiting upper wall 11, so that the outer surface of the locking rod 7 is consistent with the front outer surface of the lower mounting base 2. The lower end of the locking rod 7 and the outside of the lower mounting base 2 are provided with a pressing plate 12. The lower end of the locking base 3, both ends of the fixed groove 6 and both ends of the locking wedge 8 are provided with guide wedges 17. The limiting upper arm 11 is set to limit the position of the locking rod 7 to prevent the locking rod 7 from rotating excessively due to the elastic force of the return spring 9. When the locking rod 7 is opened, pressing the pressing plate 12 can drive the locking rod 7 to rotate. The guide wedges 17 are provided to ensure the smooth splicing connection between the locking wedge 8, the locking groove 6 and the locking base 3.

[0020] The lower end of the adjusting bolt 5 is provided with a limiting groove 13 inside the locking seat 3. The front side of the locking seat 3 is connected to a limiting screw 14 by a thread. The inner end of the limiting screw 14 is engaged with the limiting groove 13. The adjusting bolt 5 and the locking seat 3 can be rotatably connected by the splicing connection between the limiting screw 14 and the limiting groove 13.

[0021] The front outer surface of the lower mounting base 2 and the rear outer surface of the locking rod 7 are both provided with limiting protrusions 15. The return spring 9 is spliced ​​with the limiting protrusions 15, and the position of the return spring 9 is limited by the limiting protrusions 15.

[0022] The fixed edge 10 has fixing bolt holes 16 at both the top and bottom. By passing bolts through the fixing bolt holes 16, the fixed edge 10, along with the upper mounting base 1 and the lower mounting base 2, can be fixedly mounted on the upper and lower molds.

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A thermoforming mold locking mechanism, characterized in that: The device includes an upper mounting base (1) and a lower mounting base (2). The upper mounting base (1) has a locking seat (3) inside. The upper mounting base (1) has sliding grooves (4) on both sides inside. The locking seat (3) is slidably connected to the sliding grooves (4). An adjusting bolt (5) is threadedly connected to the middle position of the upper end of the upper mounting base (1). The lower end of the adjusting bolt (5) is rotatably connected to the locking seat (3). A locking groove (6) is opened on the front surface of the locking seat (3). A locking rod (7) is rotatably connected to the interior of the lower mounting base (2) through a rotating shaft. A locking wedge (8) is provided on the inner side of the upper end of the locking rod (7). The locking wedge (8) is spliced ​​with the locking groove (6). A return spring (9) is provided between the rear side of the locking rod (7) and the lower end of the lower mounting base (2). Fixed edges (10) are provided on the left and right sides of both the upper mounting base (1) and the lower mounting base (2).

2. The thermoforming mold locking mechanism according to claim 1, characterized in that: The upper end of the lower mounting base (2) is provided with a limiting upper wall (11), and the inner side of the locking rod (7) abuts against the limiting upper wall (11), so that the outer surface of the locking rod (7) is consistent with the front outer surface of the lower mounting base (2). The lower end of the locking rod (7) and the outside of the lower mounting base (2) are provided with a pressing plate (12). The lower end of the locking base (3), both ends of the fixed groove (6) and both ends of the locking wedge (8) are provided with guide wedges (17).

3. The thermoforming mold locking mechanism according to claim 1, characterized in that: The lower end of the adjusting bolt (5) is provided with a limiting groove (13) inside the locking seat (3). The front side of the locking seat (3) is connected to a limiting screw (14) by a thread. The inner end of the limiting screw (14) is engaged with the limiting groove (13).

4. The thermoforming mold locking mechanism according to claim 1, characterized in that: The front outer surface of the lower mounting base (2) and the rear outer surface of the locking rod (7) are both provided with limiting protrusions (15), and the reset spring (9) is spliced ​​with the limiting protrusions (15).

5. The thermoforming mold locking mechanism according to claim 1, characterized in that: Fixing bolt holes (16) are provided above and below the fixing edge (10).

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