Lighter head forming die structure

Abstract

The utility model relates to the technical field of die structures, in particular to a lighter head forming die structure. A male die fixing plate is fixed on a male die fixing seat; a female die plate is fixed on the female die fixing plate; a plurality of first positioning concave shapes are formed in the surface, directly facing the concave template, of the convex die fixing plate; a male die positioning strip is arranged on the side wall of the male die plate. A male die positioning groove matched with the male die positioning strip is formed in the inner side wall of the first positioning concave part; a jacking block is arranged in the first positioning concave shape; and the male die positioning strip is inserted into the male die positioning groove after the jacking block is jacked on the male die plate. When the mold core structure is used, the mold core structure is convenient to disassemble and assemble, and the maintenance efficiency of the mold is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of die structures, in particular to a die structure for forming a lighter head. Background Art

[0002] The base of a lighter head is a delicate plastic structure, which generally needs to be formed by a plastic mold. For such a small plastic product, a multi-cavity plastic mold is generally required for batch forming.

[0003] In the traditional die core structure, generally, a plurality of cores are fixed by a convex template, and the cores are detachably connected to the convex template.

[0004] In the existing core structure, generally, a core convex ring is arranged on the core; a core positioning groove matching the core is arranged on the convex template; a positioning groove counterbore matching the core convex ring is arranged on the core positioning groove. After the core is inserted into the core positioning groove, the core convex ring is inserted into the positioning groove counterbore, and then the core convex ring is pressed in the positioning groove by a punch fixing plate for positioning. The convex template and the punch fixing plate need to be fixedly connected by bolts on the front and rear sides. The connection efficiency of the convex template and the punch fixing plate is low, and it is inconvenient to disassemble the core. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a die structure for forming a lighter head in view of the defects and deficiencies of the prior art.

[0006] To achieve the above purpose, the technical scheme adopted by the utility model is as follows:

[0007] A die structure for forming a lighter head of the utility model includes a punch fixing seat and a die holder fixing plate; a punch fixing plate is fixed on the punch fixing seat; a die template is fixed on the die holder fixing plate; a plurality of first positioning concave types are arranged on the surface of the punch fixing plate facing the die template; a convex template is fixed inside each of the first positioning concave types; a plurality of core positioning grooves are formed on the convex template; cores are arranged in the core positioning grooves; a core convex ring is arranged on each core; a positioning groove counterbore hole matching the core convex ring is arranged on the core positioning groove; after the core is inserted into the core positioning groove, the core convex ring is inserted into the positioning groove counterbore hole; the inner top wall of the first positioning concave type presses on the core convex ring; the width of the first positioning concave type is equal to the width of the convex template; the length of the first positioning concave type is greater than the length of the convex template; a punch positioning strip is arranged on the side wall of the convex template; a punch positioning groove matching the punch positioning strip is formed on the inner side wall of the first positioning concave type; a pressing block is arranged in the first positioning concave type; after the pressing block presses on the convex template, the punch positioning strip is inserted into the punch positioning groove.

[0008] Further, a first wedge surface is provided on the surface of the first positioning concave away from the punch positioning groove; a threaded hole is provided on the inner bottom wall of the first positioning concave; a second wedge surface for mating with the first wedge surface is provided on one side surface of the pressing block; a strip-shaped through hole is formed in the pressing block; a headed bolt passes through the strip-shaped through hole and is threadedly connected to the threaded hole; the head of the headed bolt presses against the pressing block; the first wedge surface abuts against the second wedge surface; the surface of the pressing block away from the second wedge surface abuts against the surface of the punch template away from the punch positioning strip.

[0009] Further, a punch wedge surface is provided on the surface of the punch template away from the punch positioning strip; a third wedge surface matching the punch wedge surface is provided on the pressing block.

[0010] Further, a handle concave is provided on the surface of the punch template.

[0011] Further, the first positioning concaves are symmetrically arranged on the punch fixing plate.

[0012] After adopting the above structure, the beneficial effects of the present utility model are as follows: The punch positioning groove is arranged on the surface in the length direction of the punch fixing plate; the core and the cavity of the concave template form a forming cavity; after the punch template is fixed, the core is fixed on the core positioning groove due to the limitation of the core convex ring in the counterbore of the positioning groove; and since the length of the first positioning concave is greater than the length of the punch template, after the punch template is inserted into the first positioning concave, there is a sliding space for the punch template in the first positioning concave; but after these sliding spaces are locked and positioned by the pressing block, the punch template is pressed against the side of the first positioning concave with the punch positioning groove, so that the punch positioning strip is inserted into the punch positioning groove for positioning. When it is necessary to remove the core, take out the pressing block and pull the punch template along the side away from the punch positioning groove. In this structure, the disassembly and assembly of the core structure are convenient, and the maintenance efficiency of the mold is improved. Description of the Drawings

[0013] Figure 1 is an exploded view of the present utility model;

[0014] Figure 2 is the first three-dimensional perspective exploded view of the connection between the punch template and the punch fixing plate;

[0015] Figure 3 is the front view exploded view of the connection between the punch template and the punch fixing plate;

[0016] Figure 4 is the second three-dimensional perspective explosion of the connection between the punch template and the punch fixing plate;

[0017] Figure 5 is the exploded view of the punch template and the core;

[0018] Figure 6 It is a structural diagram of the clamping block;

[0019] Explanation of the reference numerals in the drawings:

[0020] 1. Punch fixing seat; 2. Punch plate; 201. Punch positioning strip; 202. Core positioning groove;

[0021] 202a. Counterbore of the positioning groove; 203. Handle concave; 204. Wedge surface of the punch; 3. Punch fixing plate;

[0022] 301. First positioning concave; 301a. First wedge surface; 301b. Punch positioning groove;

[0023] 301c. Threaded hole; 4. Core; 401. Core convex ring; 5. Clamping block; 501. Strip-shaped through hole;

[0024] 502. Second wedge surface; 503. Third wedge surface; 6. Die fixing plate; 7. Die plate;

[0025] 8. Bolt with head. Detailed implementation manners

[0026] The present utility model will be further described below with reference to the accompanying drawings.

[0027] As Figures 1 to 6 shown, a structure of a lighter head forming die according to the present utility model includes a punch fixing seat 1 and a die fixing plate 6; a punch fixing plate 3 is fixed on the punch fixing seat 1; a die plate 7 is fixed on the die fixing plate 6; a plurality of first positioning concaves 301 are provided on the surface of the punch fixing plate 3 facing the die plate 7; a punch plate 2 is fixed inside each of the first positioning concaves 301; a plurality of core positioning grooves 202 are formed on the punch plate 2; a core 4 is disposed in each of the core positioning grooves 202; a core convex ring 401 is provided on the core 4; a counterbore 202a matching with the core convex ring 401 is provided on the core positioning groove 202; after the core 4 is inserted into the core positioning groove 202, the core convex ring 401 is embedded into the counterbore 202a; the inner top wall of the first positioning concave 301 presses against the core convex ring 401; the width of the first positioning concave 301 is equal to the width of the punch plate 2; the length of the first positioning concave 301 is greater than the length of the punch plate 2; a punch positioning strip 201 is provided on the side wall of the punch plate 2; a punch positioning groove 301b matching with the punch positioning strip 201 is formed on the inner side wall of the first positioning concave 301; a clamping block 5 is disposed in the first positioning concave 301; after the clamping block 5 presses against the punch plate 2, the punch positioning strip 201 is inserted into the punch positioning groove 301b; the punch positioning groove 301b is provided on the surface of the punch fixing plate 3 in the length direction;

[0028] The core 4 and the cavity of the concave template 7 form a molding cavity; after the convex template 2 is fixed, the core 4 is fixed on the core positioning groove 202 due to the limit of the core convex ring 401 in the counterbore of the positioning groove 202a; and since the length of the first positioning concave 301 is greater than the length of the convex template 2, after the convex template 2 is inserted into the first positioning concave 301, the convex template 2 has a sliding space in the first positioning concave 301; but after these sliding spaces are locked and positioned by the tightening block 5, the convex template 2 is pressed against the side of the first positioning concave 301 with the punch positioning groove 301b, so that the punch positioning strip 201 is inserted into the punch positioning groove 301b for positioning. When the core 4 needs to be removed, the tightening block 5 is taken out, and the convex template 2 can be pulled along the side away from the punch positioning groove 301b. In this structure, the disassembly and assembly of the core 4 structure are convenient, improving the maintenance efficiency of the mold.

[0029] As a preferred embodiment of the present invention, a first wedge surface 301a is provided on the surface of the first positioning concave 301 away from the punch positioning groove 301b; a threaded hole 301c is provided on the inner bottom wall of the first positioning concave 301; a second wedge surface 502 paired with the first wedge surface 301a is provided on one side surface of the tightening block 5; a strip-shaped through hole 501 is provided on the tightening block 5; the head bolt 8 passes through the strip-shaped through hole 501 and is threadedly connected to the threaded hole 301c; the head of the head bolt 8 presses on the tightening block 5; the first wedge surface 301a abuts against the second wedge surface 502; the surface of the tightening block 5 away from the second wedge surface 502 abuts against the surface of the convex template 2 away from the punch positioning strip 201;

[0030] A counterbore is provided at the top of the strip-shaped through hole 501 for hiding the head of the head bolt 8. By tightening and loosening the head bolt 8 on the threaded hole 301c, the insertion depth of the tightening block 5 can be adjusted; the first wedge surface 301a abuts against the second wedge surface 502, so that the tightening block 5 has a lateral pressure on the convex template 2; when the convex template 2 is removed, only the head bolt 8 needs to be loosened, and the tightening block 5 can slide along the direction away from the punch positioning groove 301b. When the sliding distance of the tightening block 5 is greater than the length of the punch positioning strip 201, the punch positioning strip 201 can be pulled out of the punch positioning groove 301b, and the disassembly of the convex template 2 can be completed; in this structure, the disassembly and assembly of the convex template 2 do not require the removal of the head bolt 8, only a single head bolt 8 needs to be tightened and loosened, improving the disassembly and assembly efficiency of the convex template 2.

[0031] As a preferred embodiment of the present utility model, a punch wedge surface 204 is provided on the surface of the punch template 2 away from the punch positioning strip 201; a third wedge surface 503 matching the punch wedge surface 204 is provided on the pressing block 5; under the cooperation of the punch wedge surface 204 and the third wedge surface 503, in addition to providing a thrust force to the punch template 2 towards the punch positioning strip 201, a downward pressure is also provided to the punch template 2 to further fasten the punch template 2.

[0032] As a preferred embodiment of the present utility model, a handle concave 203 is provided on the surface of the punch template 2; when disassembling and assembling the punch template 2, after a tool is inserted into the handle concave 203, a thrust force can be applied to the punch template 2 during disassembly and assembly to pull out the punch positioning strip 201 from the punch positioning groove 301b.

[0033] As a preferred embodiment of the present utility model, the first positioning concave 301 is symmetrically arranged on the punch fixing plate 3; for the two symmetrically arranged punch templates 2, after the pressure of the pressing block 5 on the punch template 2 acts on the inner wall of the first positioning concave 301, the pressure magnitudes of the two first positioning concaves 301 received from the two punch templates 2 during disassembly and assembly are equal, the directions are opposite, and the forces act at the same position, further increasing the deformation difficulty of the first positioning concave 301 and reducing the risk of deformation of the first positioning concave 301.

[0034] The above is only a preferred embodiment of the present utility model. Therefore, all equivalent changes or modifications made according to the structure, features, and principles described in the scope of the patent application of the present utility model are included in the scope of the patent application of the present utility model.

Claims

1. A lighter head forming mold structure, characterized in that: The invention comprises a punch fixing seat (1) and a die fixing plate (6); a punch fixing plate (3) is fixed on the punch fixing seat (1); a die plate (7) is fixed on the die fixing plate (6); a plurality of first positioning recesses (301) are arranged on the surface of the punch fixing plate (3) facing the die plate (7); a punch plate (2) is fixed inside each of the first positioning recesses (301); a plurality of core positioning grooves (202) are provided on the punch plate (2); a core (4) is arranged in each of the core positioning grooves (202); a core convex ring (401) is arranged on the core (4); a positioning groove countersunk hole (202a) matching the core convex ring (401) is arranged on the core positioning groove (202); the core (4) is inserted into the core positioning groove ( 202) after the core convex ring (401) is embedded in the positioning groove countersunk hole (202a); the inner top wall of the first positioning concave (301) is pressed against the core convex ring (401); the width of the first positioning concave (301) is equal to the width of the convex plate (2); the length of the first positioning concave (301) is greater than the length of the convex plate (2); a convex mold positioning strip (201) is provided on the side wall of the convex plate (2); a convex mold positioning groove (301b) matching the convex mold positioning strip (201) is provided on the inner side wall of the first positioning concave (301); a tightening block (5) is provided in the first positioning concave (301); after the tightening block (5) is tightened against the convex plate (2), the convex mold positioning strip (201) is inserted into the convex mold positioning groove (301b).

2. A lighter head forming mold structure according to claim 1, characterized in that: A first wedge-shaped surface (301a) is provided on the surface of the first positioning concave (301) away from the punch positioning groove (301b); a threaded hole (301c) is provided on the inner bottom wall of the first positioning concave (301); a second wedge-shaped surface (502) used in pair with the first wedge-shaped surface (301a) is provided on the surface of one side of the clamping block (5); a strip-shaped through hole (501) is provided on the clamping block (5); a head bolt (8) passes through the strip-shaped through hole (501) and is threadedly connected to the threaded hole (301c); the head of the head bolt (8) is pressed against the clamping block (5); the first wedge-shaped surface (301a) is pressed against the second wedge-shaped surface (502); and the surface of the clamping block (5) away from the second wedge-shaped surface (502) is pressed against the surface of the male mold plate (2) away from the punch positioning strip (201).

3. A lighter head forming mold structure according to claim 2, characterized in that: A punch wedge-shaped surface (204) is provided on the surface of the punch template (2) away from the punch positioning strip (201); and a third wedge-shaped surface (503) matching the punch wedge-shaped surface (204) is provided on the tightening block (5).

4. A lighter head forming mold structure according to claim 2, characterized in that: A handle recess (203) is provided on the surface of the convex template (2).

5. The lighter head forming mold structure according to claim 2, characterized in that: The first positioning concave shapes (301) are symmetrically arranged on the male mold fixing plate (3).

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