CN217070709U

CN217070709U - Pressure maintaining mechanism for tool box locking mold

Info

Publication number: CN217070709U
Application number: CN202220725303.XU
Authority: CN
Inventors: 胡滨
Original assignee: Ningbo Jiufeng Electronic Tools Co ltd
Current assignee: Ningbo Jiufeng Electronic Tools Co ltd
Priority date: 2022-03-29
Filing date: 2022-03-29
Publication date: 2022-07-29
Anticipated expiration: 2032-03-29

Abstract

The utility model provides a pressure maintaining mechanism for a locking die of a tool box, which comprises a fixed die and a movable die, wherein a locking mechanism is arranged between the fixed die and the movable die, the locking mechanism comprises a hinged support, a locking rod and a guide block, the hinged support is fixed on the side wall of the fixed die, the upper end of the locking rod is hinged on the hinged support, the lower end of the locking rod is provided with a locking block, the inner side of the locking block is provided with a locking part, two sides of the locking block are provided with stop pins, the fixed die or the hinged support is provided with an elastic component, and the elastic component enables the locking block to have a motion trend close to the fixed die; the guide block is fixed the movable mould lateral wall, be equipped with on the guide block be used for with the stop pin contact realizes the face of leading of direction, it is in including setting up to lead the face to one side the first oblique face of leading and setting of the upper end of guide block are in the oblique face of leading of the second of the lower extreme of guide block, the lateral wall of movable mould is equipped with and holds the lockhole that locking portion card is gone into, during the compound die locking portion card is gone into the lockhole. The utility model discloses toolbox hasp mould pressure maintaining mechanism, compact structure, it is with low costs, the good reliability.

Description

Pressure maintaining mechanism for tool box locking mold

Technical Field

The utility model relates to a toolbox, in particular to toolbox hasp mould pressure maintaining mechanism.

Background

The tool box is a container for storing tools and various household sundries, can be used for various purposes such as production, households, maintenance, fishing and the like, and is widely used. It is classified into a mobile type and a fixed type. Mobile tool boxes are also known as tool carts. In order to quickly open or lock the tool box, the tool box cover body and the box body are connected through the lock catches, in order to reduce cost, most of the lock catches are made of plastics, are easy to damage after being used for a long time, are short in service life, and are easy to embrittle the plastics particularly under certain special working conditions, so that the tool box in certain specific fields is made of metal, and the lock catches are also made of metal.

The metal lock catch is formed by die casting, which is a precision casting method that uses high pressure to force molten metal into a metal mold with a complex shape. The die casting machine is a machine for die casting, and the die casting machine injects molten metal liquid into a die to be cooled and formed under the action of pressure, and a solid metal casting can be obtained after die opening. In traditional die casting machine, only adopt the hydraulic cylinder mode locking, only advance and retreat two single actions, the hydraulic cylinder can't carry out the accurate positioning to the mode locking position, leads to the mode locking position inaccurate, and the mode locking effect is not good, and the influence has the stability of the material action of penetrating of powerful pressure to go on.

SUMMERY OF THE UTILITY MODEL

【1】 Technical problem to be solved

The to-be-solved technical problem of the utility model is to provide a toolbox lock catch mould pressure maintaining mechanism that can realize automatic mode locking, mode locking power is big, and can improve the foundry goods quality.

【2】 Technical scheme for solving problems

The utility model provides a toolbox hasp mould pressurize mechanism, including cover half and movable mould, the cover half with be equipped with locking mechanism between the movable mould, locking mechanism includes free bearing 61, locking lever 62 and guide block 63, free bearing 61 fixes at the cover half lateral wall, the upper end of locking lever 62 articulates on free bearing 61, and the axis of rotation of locking lever is perpendicular to the slip direction of cover half, the lower extreme of locking lever 62 is equipped with the locking piece, the inboard of locking piece is equipped with the arch and forms locking part 622, the both sides of locking piece are equipped with backing pin 623, the axis of backing pin is on a parallel with the axis of rotation of locking lever, the cover half or be equipped with elastomeric element on the free bearing, elastomeric element makes the locking piece have to the motion trend that the cover half is close to; the guide block 63 is fixed the movable mould lateral wall, be equipped with on the guide block 63 be used for with the stop pin contact realizes the face of leading of direction, it is in including setting up to lead the face the first oblique guide surface 63a and the setting of the upper end of guide block 63 are in to the second of the lower extreme of guide block leads the face 63c to one side, the lateral wall of movable mould is equipped with the appearance lockhole 401 that locking portion card was gone into, during the compound die the locking portion card is gone into the lockhole.

Furthermore, the upper surface of locking portion is the horizontal plane and forms first locking surface, the top surface of lockhole is the horizontal plane and forms second locking surface.

Further, the upper end of locking lever upwards extends and forms the support, the inboard of support is equipped with the shrinkage pool and forms first spring hole 620, the lateral wall of cover half be equipped with first spring hole coaxial second spring hole 102, elastomeric element is the spring and sets up first spring hole with between the second spring hole.

Furthermore, the elastic component is a torsion spring and is arranged between the hinged support and the hinged shaft of the lock rod.

Further, a third guide surface 63b is connected between the first inclined guide surface and the second inclined guide surface, and the third guide surface is parallel to the side wall of the movable mold.

Furthermore, the two locking mechanisms are symmetrically arranged.

Furthermore, a pneumatic push rod capable of pushing the lock rod to move outwards and enabling the locking part to be separated from the lock hole is arranged in the movable die.

Furthermore, the pneumatic push rod comprises an air cylinder and a push rod fixed at the output end of the air cylinder, the push rod is horizontally matched in the lock hole in a sliding mode, and the end portion of the push rod faces the opening end of the lock hole.

Further, when the locking part is clamped into the lock hole, the side wall of the lock rod is attached to the side wall of the fixed die.

Further, the rotation angle of the lock rod is less than or equal to 6 degrees.

【3】 Advantageous effects

The utility model discloses toolbox hasp mould pressure maintaining mechanism sets up locking mechanism, can lock the mould fixedly, improves the mode locking power, does benefit to the follow-up material of penetrating action that has powerful jet-compression of accomplishing, does benefit to improving product quality; the swing type lock rod structure and the guide block are adopted, so that the manufacturing cost is low, the electric control is not needed, the stability is good, and the reliability is high; the multi-locking part structure design further improves the reliability; the pneumatic push rod is arranged, so that automatic ejection can be realized, and the pneumatic push rod has the advantages of simple action, low cost and good reliability; the utility model discloses toolbox hasp mould pressure maintaining mechanism, compact structure, it is with low costs, the good reliability.

Drawings

FIG. 1 is a schematic structural view of the pressure-retaining mechanism of the locking mold of the utility model;

FIG. 2 is another schematic view of the pressure-retaining mechanism of the locking mold of the tool box according to the present invention;

FIG. 3 is a schematic structural view of a locking mechanism of the tool box locking mold pressure maintaining mechanism of the present invention;

FIG. 4 is a cross-sectional view of the locking mechanism of the tool box locking mold pressure maintaining mechanism of the present invention;

fig. 5 is an enlarged view of a portion a in fig. 4.

Detailed Description

The embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

The utility model provides a toolbox hasp mould pressure maintaining mechanism, it includes cover half and movable mould, and the cover half includes cover half 1 and fixed die plate 2, and the movable mould includes movable die holder 5 and movable mould board 3, forms the die cavity between fixed die plate and the movable mould board and is in, is equipped with locking mechanism 6 between cover half and the movable mould, and locking mechanism is two and the symmetry sets up in the mould both sides, refers to fig. 2. For convenience of description, the fixed mold is taken as the upper part, and the movable mold is taken as the lower part.

Referring to fig. 1-5, the locking mechanism 6 includes a hinge base 61, a lock rod 62 and a guide block 63, the hinge base 61 is fixed on the upper end of the side wall of the fixed mold, the upper end of the lock rod 62 is hinged on the hinge base 61, and the rotation axis of the lock rod is perpendicular to the sliding direction of the fixed mold, specifically, holes for the lock rod to pass through are penetrated through the upper and lower ends of the hinge base, and a reserved space for the lock rod (lower end) to rotate outwards is provided on the side wall of the hole.

A locking block is arranged at the lower end of the locking rod 62, a bulge is arranged on the inner side of the locking block and forms a locking part 622, the upper surface of the locking part 622 is a first locking surface, and the first locking surface is a horizontal surface; two sides of the locking block are provided with stop pins 623 which are coaxially arranged, and during actual assembly, one stop pin is arranged, and two ends of the stop pin extend out of the locking block; the axis of the stop pin is parallel to the rotation axis of the lock rod, and an elastic part is arranged on the fixed die or the hinged support, and the elastic part makes the lock block move towards the fixed die, even if the lock rod in figure 4 has a clockwise rotation tendency.

In this embodiment, the upper end of the lock rod extends upward to form a support portion, a concave hole is formed in the inner side (toward the mold) of the support portion to form a first spring hole 620, a second spring hole 102 is formed in the side wall (toward the support portion) of the fixed mold, the second spring hole is coaxial with the first spring hole, and the elastic member is a spring which is compressed and arranged between the first spring hole and the second spring hole, so that the support portion can be pushed to move outward even if the lock block at the lower end of the lock rod has a tendency of moving inward (close to the mold); a gap is arranged between the supporting part and the opposite surface of the side wall of the fixed die, and the gap is used for accommodating the rotation of the supporting part.

The elastic member may also be a torsion spring, and when a torsion spring is used, it is disposed between the hinge base and the hinge shaft of the lock lever.

The guide block 63 is fixed on the side wall of the movable mold, and guide surfaces for contacting with the stop pins and realizing guide are arranged on the guide block 63; the guide surface comprises a first inclined guide surface 63a arranged at the upper end of the guide block 63 and a second inclined guide surface 63c arranged at the lower end of the guide block, the first inclined guide surface is a surface inclined downwards and outwards, the second inclined guide surface is a surface inclined upwards and outwards, referring to fig. 3, the inclination directions of the first inclined guide surface and the second inclined guide surface are opposite, and the inclination angle (the included angle between the vertical plane) is 25-35 degrees, preferably 30 degrees; a third guide surface 63b is connected between the first and second inclined guide surfaces, and is parallel to the movable mold side wall.

A lock hole 401 for clamping the locking part is formed in the side wall of the movable die, a second locking surface is arranged on the top surface of the lock hole and is a horizontal plane, when the die is closed (the fixed die and the movable die are attached), the lock rod rotates to an inner limit position, the locking part is clamped into the lock hole, and at the moment, the first locking surface is attached to the second locking surface to realize die locking; the side wall of the lock rod is attached to the side wall of the fixed die.

In order to improve locking force and reliability, a plurality of locking parts are arranged on each locking block, and each locking part is positioned on different horizontal planes.

In this embodiment, the rotation angle of the lock lever is less than or equal to 6 degrees.

In order to realize quick and automatic unlocking, the pneumatic push rod is further arranged in the embodiment, is horizontally arranged in the movable die and can push the lock rod to move outwards so as to separate the locking part from the lock hole and further realize unlocking; specifically, pneumatic push rod includes the cylinder and fixes the push rod at the output of cylinder, and its equal level sets up, has seted up a slide opening at the inner wall of lockhole, and the opening direction of this slide opening is towards the open end of lockhole, and the push rod sliding fit is in this slide opening, when the outside motion of push rod, is ejecting from the lockhole with locking portion, realizes the unblock, can carry out the branch mould this moment.

When the die assembly is completed, the stop pin is separated from the guide surface and moves inwards under the action of elasticity, and the locking part is clamped into the locking hole to realize locking.

When the mold is separated, the pneumatic push rod pushes the locking part and pushes the locking part out of the locking hole, the movable mold moves downwards, the second inclined guide surface is contacted with the stop pin, the locking block moves outwards under the guidance of the inclined guide surface, and the locking block is prevented from being contacted with the movable mold.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a toolbox hasp mould pressurize mechanism, includes cover half and movable mould, its characterized in that: a locking mechanism is arranged between the fixed die and the movable die, the locking mechanism comprises a hinged support, a lock rod and a guide block, the hinged support is fixed on the side wall of the fixed die, the upper end of the lock rod is hinged on the hinged support, the rotation axis of the lock rod is perpendicular to the sliding direction of the movable die, the lower end of the lock rod is provided with a lock block, the inner side of the lock block is provided with a bulge and forms a locking part, two sides of the lock block are provided with stop pins, the axis of the stop pins is parallel to the rotation axis of the lock rod, the fixed die or the hinged support is provided with an elastic component, and the elastic component enables the lock block to move towards the fixed die; the guide block is fixed the movable mould lateral wall, be equipped with on the guide block be used for with the stop pin contact realizes the face of leading of direction, the face of leading is including setting up the first oblique face of leading of the upper end of guide block and setting are in the oblique face of leading of the second of the lower extreme of guide block, the lateral wall of movable mould is equipped with when the compound die holds the lockhole that locking portion card was gone into.

2. The toolbox latching die hold down mechanism of claim 1, wherein: the upper surface of locking portion is the horizontal plane and forms first locking face, the top surface of lockhole is the horizontal plane and forms second locking face.

3. The toolbox latching die pressure maintaining mechanism of claim 1, wherein: the upper end of locking lever upwards extends and forms the support, the inboard of support is equipped with the shrinkage pool and forms first spring hole, the lateral wall of cover half be equipped with the coaxial second spring hole in first spring hole, elastomeric element is the spring and sets up first spring hole with between the second spring hole.

4. The toolbox latching die hold down mechanism of claim 1, wherein: the elastic component is a torsion spring and is arranged between the hinged support and the hinged shaft of the lock rod.

5. The toolbox latching die hold down mechanism of claim 1, wherein: and a third guide surface is connected between the first inclined guide surface and the second inclined guide surface and is parallel to the side wall of the movable die.

6. The toolbox latching die hold down mechanism of claim 1, wherein: the locking mechanism is two and symmetrical setting.

7. The toolbox latching die hold down mechanism of claim 1, wherein: and a pneumatic push rod capable of pushing the lock rod to move outwards and enabling the locking part to be separated from the lock hole is arranged in the movable die.

8. The toolbox latching die hold down mechanism of claim 7 wherein: the pneumatic push rod comprises an air cylinder and a push rod fixed at the output end of the air cylinder, the push rod is horizontally matched in the lock hole in a sliding mode, and the end portion of the push rod faces the opening end of the lock hole.

9. The toolbox latching die hold down mechanism of claim 1, wherein: when the locking part is clamped into the locking hole, the side wall of the locking rod is attached to the side wall of the fixed die.

10. The toolbox latching die hold down mechanism of claim 1, wherein: the rotation angle of the lock rod is less than or equal to 6 degrees.