Hardware in-mold sharp edge removing structure

Abstract

The utility model relates to the field of hardware production dies, in particular to a hardware in-die sharp edge removing structure which comprises a lower die and an upper die, an upper die boss is fixed to the bottom of the upper die, a lower die cavity is formed in the top of the lower die, and a first sharp edge removing assembly is detachably installed at one side end in the lower die cavity. The stainless steel sheet sharp edge removing die has the advantages that inclined face guiding sliding structures can be additionally arranged at the two ends in the die, the upper die boss is matched, and under the strong pressure, when a stainless steel sheet is punched into hardware, the stainless steel sheet can be punched into the hardware, and the sharp edge removing effect is good. The sharp edges at the two ends generate counter-acting force at the inclined face guiding sliding structures to be wound to form curled edges, so that the effect of removing the sharp edges of the stamped hardware is achieved, potential safety hazards are eliminated, and meanwhile the machining efficiency of the hardware is improved.

Description

Technical Field

[0001] This utility model relates to the field of hardware production molds, specifically to an in-mold trimming structure for hardware parts. Background Technology

[0002] Hardware parts can be processed and formed by stamping thin stainless steel sheets. Usually, molds are required. During the stamping process of thin stainless steel sheets, the stamped hardware parts have sharp edges, which may not only fail to pass subsequent inspections, but also cause workers to be cut.

[0003] Currently, the sharp edges of hardware parts are mainly processed by subsequent grinding and polishing. Although this can eliminate the aforementioned safety hazards, it affects the processing efficiency of hardware parts.

[0004] Therefore, it is necessary to invent an in-mold trimming structure for hardware parts. Utility Model Content

[0005] Therefore, this utility model provides an in-mold trimming structure for hardware parts to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a metal part in-mold trimming structure, including a lower mold and an upper mold, an upper mold boss fixed at the bottom of the upper mold, a lower mold cavity opened at the top of the lower mold, a first trimming component detachably installed on one side of the lower mold cavity, and a second trimming component detachably installed on the other side of the lower mold cavity;

[0007] The first edge trimming component includes a plurality of first inclined sliding blocks, which are evenly arranged inside one side of the lower mold cavity, and each of the first inclined sliding blocks has a first inclined guide groove symmetrically arranged at its end.

[0008] Preferably, each of the first inclined sliding blocks has a first threaded hole in the middle, and the wall of each first threaded hole is threaded with a first fixing screw, which is threaded to the top of the lower mold cavity.

[0009] Preferably, the second edge trimming component includes a plurality of second inclined sliding blocks, which are evenly arranged inside the lower mold cavity on the other side, and the ends of the second inclined sliding blocks are symmetrically provided with second inclined guide grooves.

[0010] Preferably, each of the second inclined sliding blocks has a second threaded hole in the middle, and the wall of each second threaded hole is threaded with a second fixing screw, which is threaded to the top of the lower mold cavity.

[0011] Preferably, several of the first inclined surface sliding blocks and several of the second inclined surface sliding blocks are respectively arranged in one-to-one correspondence, and several of the first inclined surface guide grooves and several of the second inclined surface guide grooves are respectively arranged in one-to-one correspondence.

[0012] Preferably, two connecting plates are fixed to the side end of the lower mold by third fixing screws, and limiting plates for limiting the stainless steel sheet are fixed to the top side ends of the two connecting plates.

[0013] The beneficial effects of the present utility model are as follows: By the combined use of the lower mold, the upper mold, the upper mold boss, the lower mold cavity, the first deburring component and the second deburring component, inclined surface guiding and sliding structures can be added at both ends inside the mold. In cooperation with the upper mold boss, under strong pressure, when the stainless steel sheet is stamped into a hardware part, the sharp edges at both ends of the stainless steel sheet generate a reaction force and are wound up at the inclined surface guiding and sliding structures, forming curled edges, so as to achieve the effect of removing the sharp edges of the stamped hardware part, eliminating potential safety hazards and also being beneficial to the processing efficiency of the hardware part. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural diagram provided by the present utility model;

[0015] Figure 2 is a top view of the structure of the lower mold provided by the present utility model;

[0016] Figure 3 is a three-dimensional view of the structure of the first inclined surface sliding block provided by the present utility model;

[0017] Figure 4 is a three-dimensional view of the structure of the second inclined surface sliding block provided by the present utility model.

[0018] In the figure: 1, lower mold; 2, upper mold; 3, upper mold boss; 4, lower mold cavity; 5, first inclined surface sliding block; 6, first threaded hole; 7, first fixing screw; 8, first inclined surface guide groove; 9, second inclined surface sliding block; 10, second threaded hole; 11, second fixing screw; 12, second inclined surface guide groove; 13, third fixing screw; 14, connecting plate; 15, limiting plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The following describes the preferred embodiments of the present utility model with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only for the purpose of illustration and explanation of the present utility model, and are not used to limit the present utility model.

[0020] Please refer to the attached Figures 1-4The present invention provides a hardware part in-mold trimming structure, including a lower mold 1 and an upper mold 2. The bottom of the upper mold 2 is fixed with an upper mold boss 3. The top of the lower mold 1 is provided with a lower mold cavity 4. A first trimming component is detachably installed on one side of the lower mold cavity 4, and a second trimming component is detachably installed on the other side of the lower mold cavity 4.

[0021] The first edge trimming assembly includes several first inclined sliding blocks 5, which are evenly arranged inside one side of the lower mold cavity 4. Each first inclined sliding block 5 has a first threaded hole 6 in the middle, and the wall of each first threaded hole 6 is threaded with a first fixing screw 7. The first fixing screw 7 is threaded to the top of the lower mold cavity 4. Each end of the first inclined sliding block 5 is symmetrically provided with a first inclined guide groove 8. Specifically, under the action of the first fixing screw 7, the first inclined sliding block 5 can be fixed in the lower mold cavity 4, that is, the first inclined sliding block 5 can be easily disassembled and assembled. Under the guidance of the first inclined guide groove 8, when the upper mold boss 3 on the upper mold 2 moves down, that is, when the stainless steel sheet is stamped into a hardware part, under strong pressure, the sharp edge at one end of the first inclined sliding block 5 generates a reaction force at the first inclined guide groove 8 and curls up to form a rolled edge.

[0022] The second edge trimming component includes several second inclined sliding blocks 9, which are evenly arranged inside the lower mold cavity 4 on the other side. Each second inclined sliding block 9 has a second threaded hole 10 in its center, and a second fixing screw 11 is threaded onto the wall of each threaded hole 10. The second fixing screw 11 is threaded onto the top of the lower mold cavity 4. Each end of the second inclined sliding block 9 has a symmetrically arranged second inclined guide groove 12. Several first inclined sliding blocks 5 and several second inclined sliding blocks 9 are respectively arranged in a one-to-one correspondence. The surface guide groove 8 and several second inclined guide grooves 12 are respectively set one-to-one. Specifically, under the action of the second fixing screw 11, the second inclined sliding block 9 can be fixed in the lower mold cavity 4, that is, the second inclined sliding block 9 can be easily disassembled and assembled. Under the guiding action of the second inclined guide groove 12, when the upper mold boss 3 on the upper mold 2 moves down, that is, when the stainless steel sheet is stamped into a hardware part, under strong pressure, the sharp edge at one end of the second inclined sliding block 9 generates a reaction force at the second inclined guide groove 12 to roll up and form a rolled edge.

[0023] In summary, this structure can add inclined guide sliding structures at both ends of the mold, and in conjunction with the upper mold boss 3, under strong pressure, when the stainless steel sheet is stamped into hardware parts, the sharp edges at both ends will generate a reaction force at the inclined guide sliding structure to roll up and form rolled edges, thereby achieving the effect of removing sharp edges from the stamped hardware parts, eliminating safety hazards, and also improving the processing efficiency of hardware parts.

[0024] Two connecting plates 14 are fixed to the side of the lower mold 1 by the third fixing screw 13. The top side of the two connecting plates 14 are fixed with limiting plates 15 for limiting the movement of the stainless steel sheet.

[0025] The usage process of this utility model is as follows: Under the guidance of the first inclined guide groove 8, when the upper mold boss 3 on the upper mold 2 moves down, that is, when the stainless steel sheet is stamped into a hardware part, under strong pressure, the sharp edge at one end of the first inclined sliding block 5 generates a reaction force at the first inclined guide groove 8 and curls up to form a rolled edge. Under the guidance of the second inclined guide groove 12, when the upper mold boss 3 on the upper mold 2 moves down, that is, when the stainless steel sheet is stamped into a hardware part, under strong pressure, the sharp edge at one end of the second inclined sliding block 9 generates a reaction force at the second inclined guide groove 12 and curls up to form a rolled edge. This achieves the effect of removing the sharp edge from the stamped hardware part, eliminating safety hazards, and also improving the processing efficiency of the hardware part.

[0026] The above description is merely a preferred embodiment of this utility model. Any person skilled in the art can modify this utility model or modify it into an equivalent technical solution using the technical solution described above. Therefore, any simple modifications or equivalent substitutions made based on the technical solution of this utility model are within the scope of protection claimed by this utility model.

Claims

1. A metal part in-mold trimming structure, comprising a lower mold (1) and an upper mold (2), wherein an upper mold boss (3) is fixed at the bottom of the upper mold (2), and a lower mold cavity (4) is opened at the top of the lower mold (1), characterized in that: A first edge trimming assembly is detachably installed on one side of the lower mold cavity (4), and a second edge trimming assembly is detachably installed on the other side of the lower mold cavity (4). The first edge trimming component includes a plurality of first inclined sliding blocks (5), which are evenly arranged inside one side of the lower mold cavity (4), and each of the first inclined sliding blocks (5) is symmetrically provided with a first inclined guide groove (8).

2. The in-mold trimming structure for hardware parts according to claim 1, characterized in that: Each of the first inclined sliding blocks (5) has a first threaded hole (6) in the middle. The wall of each first threaded hole (6) is threaded with a first fixing screw (7). The first fixing screw (7) is threaded to the top of the lower mold cavity (4).

3. The in-mold trimming structure for hardware parts according to claim 1, characterized in that: The second edge trimming component includes a plurality of second inclined sliding blocks (9), which are evenly arranged inside the lower mold cavity (4) on the other side. The ends of the second inclined sliding blocks (9) are symmetrically provided with second inclined guide grooves (12).

4. The in-mold trimming structure for hardware parts according to claim 3, characterized in that: The second inclined sliding block (9) has a second threaded hole (10) in the middle. The wall of the second threaded hole (10) is threaded with a second fixing screw (11). The second fixing screw (11) is threaded to the top of the lower mold cavity (4).

5. The in-mold trimming structure for hardware parts according to claim 4, characterized in that: A plurality of first inclined sliding blocks (5) and a plurality of second inclined sliding blocks (9) are respectively set in a one-to-one correspondence, and a plurality of first inclined guide grooves (8) and a plurality of second inclined guide grooves (12) are respectively set in a one-to-one correspondence.

6. The in-mold trimming structure for hardware parts according to claim 1, characterized in that: The lower mold (1) has two connecting plates (14) fixed to its side by a third fixing screw (13). The top side of each of the two connecting plates (14) is fixed with a limiting plate (15) for limiting the stainless steel sheet.

Images